JP2015506809A - Golf club head having air gap - Google Patents

Abstract

The golf club head has a body that defines a ball striking face. The body further includes a first leg (222) extending away from the ball striking surface (208) and a second leg (224) extending away from the ball striking surface, wherein the gap (226) is the first leg (224). Defined between a leg and the second leg. The body further defines a crown (212) that extends over the air gap. The void has a first void periphery (P1) and a second void periphery (P2).

Description

RELATED APPLICATIONS This application claims priority from U.S. Patent Application No. 13 / 665,844, filed February 14, 2012, and is filed with U.S. Patent Application No. 13 / 593,253, filed August 23, 2012 This is a continuation-in-part application, and the latter application is a benefit of US Patent Application No. 61 / 526,326 filed on August 23, 2011 and US Patent Application No. 61 / 598,832 filed on February 14, 2012 Insist. This application further claims the priority of U.S. Patent Application No. 13 / 250,051, filed on September 30, 2011, which is incorporated herein by reference. 480,322 and US patent application 12 / 723,951 filed on March 15, 2010, the latter application is now U.S. patent application 12 / 356,176, filed January 20, 2009, now This is a continuation-in-part of US Pat. No. 7,922,603. These applications are hereby incorporated by reference and made a part hereof.

TECHNICAL FIELD Aspects of the present invention relate generally to golf clubs and golf club heads, and in particular, a portion of the club head is removed or released to reduce or redistribute the weight associated with the club head to improve performance, The present invention relates to a golf club and a golf club head in which a void is created in the club head.

Background Golf is enjoyed by a wide variety of players: players of different genders and dramatically different ages and / or proficiency levels. Golf club designers have made great advances in the technology incorporated into golf clubs in response to golfers' ever-changing desire to improve performance. In one aspect, golfers tend to be sensitive to the “feel” of a golf club. The “feel” of a golf club includes a combination of the various component parts of the club and various features associated with the club that produce the sensations experienced by the player when aiming and / or hitting the ball. Club weight, weight distribution, swing weight, aerodynamics, swing speed, etc. can all affect the “feel” of the club when swinging and hitting the ball. “Feel” is also known to relate to the sound produced when the club head strikes and moves the ball. If the club head makes an unpleasant, undesirable or alarming sound during a collision, the user can relax, stop his / her swing, decelerate the swing, fail to maintain his or her grip, and / or swing Sometimes the follow-through is not completed, which affects the swing distance, direction, and / or other performance aspects, and the resulting ball movement. The user's expectation of this unpleasant, undesirable or surprising sound can affect the swing even before hitting the ball.

  Golf club performance may also vary based on a number of factors, including weight distribution on the club head that affects the location of the center of gravity of the golf club head. When the center of gravity is located behind the point of engagement on the contact surface, the golf ball follows a generally straight route. However, if the center of gravity is separated from the surface of the engagement point, the golf ball may fly in an unintended direction and / or follow a route that turns left or right, “pull”, “push” , “Draws”, “fades”, “hooks” or “slices”. Similarly, if the center of gravity is spaced above or below the point of engagement, golf ball flight may exhibit a more ball or more elevated trajectory, respectively.

  Also, the weight distribution with respect to the club head may affect the moment of inertia associated with the club head. Thus, modifying the moment of inertia can affect how the golf club works, for example, how the golf club head design affects heel and toe mishits. Similarly, other factors such as the impact point and launch angle can affect how the ball travels when it is hit.

  Club designers are often looking for new ways to distribute or redistribute weights associated with golf clubs and / or golf club heads. For example, club designers often attempt to allocate weights to provide higher club head latitude, improved accuracy, desired bostle pins, flying balls, and the like. Club designers are also looking to optimize the center of gravity of the club head, while club designers pursue such a design while creating club heads with the traditional aesthetic appearance that most golfers want. Face the challenge of maintaining. Club designers are also faced with the challenge of providing a club head with the desired sound characteristics when hitting. Certain prior art golf club and golf club head designs exhibit several advantageous features, but still have certain limitations. Accordingly, it would be advantageous to provide golf clubs and golf club heads having reduced weight characteristics and improved weight distribution across the club head to improve club performance. The present invention is provided to overcome certain limitations and disadvantages of the prior art and to provide new features that were not previously available.

SUMMARY At least some aspects of the present disclosure relate to golf clubs and golf club heads having improved weight distribution with respect to the club head. In one aspect, the golf club utilizes geometric weight features in the form of voids formed in the golf club head. The golf club head may include a cover that extends over the air gap such that the air gap is not visible from the top of the golf club head at the address location. In some examples, the golf club head may include specific support structures that improve the performance characteristics of the golf club head. In some further examples, the golf club head may further include one or more adjustable weight arrangements.

  In accordance with another aspect of the present invention, the golf club head is structured to maintain a high moment of inertia characteristic and a better center of gravity position. The structure of the golf club head further provides more comfortable acoustic properties.

  In accordance with another aspect of the present invention, a golf club head has a body that defines a ball striking face, a crown and a sole. The body further includes a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, and a gap is defined between the first leg and the second leg. ing. The crown extends over the gap. The void defines a first circumference proximate to the lower surface of the crown, and the void defines a second circumference proximate the sole, the second circumference being different from the first circumference. In an exemplary embodiment, the second perimeter is larger than the first perimeter.

  In accordance with a further aspect of the invention, a golf club head has a body that defines a ball striking face, a crown and a sole. The body further includes a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, and a gap is defined between the first leg and the second leg. ing. The crown extends over the gap. The body further defines an internal cavity. The first leg has a first wall extending between the crown and the sole, the first wall having a first inner surface facing the internal cavity and a first outer surface facing the air gap. The second leg has a second wall extending between the crown and the sole, the second wall having a second inner surface facing the internal cavity and a second outer surface facing the air gap.

  In accordance with a further aspect of the invention, a golf club head has a body that defines a ball striking face, a crown and a sole. The body further includes a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, and a gap is defined between the first leg and the second leg. ing. The crown extends over the gap. The body defines a bore that receives an adjustment member capable of adjusting the parameters of the golf club head. The sole defines a path surface located generally adjacent to the bore, the path surface having no breaks.

  These and further features and advantages disclosed herein will be further understood from the following detailed disclosure of specific embodiments.

1 is a front view of an exemplary golf club and golf club head structure of one or more aspects described herein. FIG. 1 is an enlarged front view of an exemplary golf club and golf club head structure in accordance with one or more aspects described herein. FIG. 1B is a plan view of the exemplary golf club and golf club head structure of FIGS. 1A and 1B of one or more aspects described herein. FIG. FIG. 2 shows a front view of an exemplary golf club head of one or more aspects described herein. FIG. 4 is a plan view of the golf club head shown in FIG. FIG. 4 is a side view of the golf club head of FIG. FIG. 4 is an opposite side view of the golf club head of FIG. FIG. 4 is a bottom perspective view of the golf club head of FIG. FIG. 4 is a bottom view of the golf club head of FIG. FIG. 4 is a cross-sectional view of the golf club head of FIG. FIG. 10 is a cross-sectional view of the golf club head of FIG. 3 taken generally along line 10-10 of FIG. FIG. 4 is a cross-sectional view of the golf club head of FIG. FIG. 4 is a partial cross-sectional view of the golf club head of FIG. 3, showing a ball striking surface having a variable face thickness. FIG. 19 is a cross-sectional view of the golf club head taken along line 13-13 in FIG. FIG. 4 is a rear partial cross-sectional view of the golf club head of FIG. 3 with a portion of the crown removed. FIG. 4 illustrates a further alternative embodiment of a golf club head similar to the golf club head of FIG. 3 according to one or more aspects described herein. FIG. 4 illustrates a further alternative embodiment of a golf club head similar to the golf club head of FIG. 3 according to one or more aspects described herein. FIG. 4 illustrates a further alternative embodiment of a golf club head similar to the golf club head of FIG. 3 according to one or more aspects described herein. FIG. 4 is a bottom perspective view of the golf club head of FIG. 3 showing an unbroken area. FIG. 4 is a bottom view of the golf club head of FIG. 3 having a decorative plate member attached to the head. 20A-20B are bottom views of one or more aspects of the golf club head described herein, showing the perimeter of the air gap. 21A-21B are bottom views of one or more aspects of the golf club head described herein showing particular lengths and angles. 4 illustrates another golf club head of one or more aspects described herein that is similar to the golf club head shown in FIG. FIG. 23 is a side view of the golf club head of FIG. FIG. 23 is a side view of the opposite side of the golf club head of FIG. FIG. 23 is a bottom perspective view of the golf club head of FIG. 22 showing a removable weight member. FIG. 23 is a bottom view of the golf club head of FIG. FIG. 27 is a cross-sectional view of the golf club head of FIG. 22 taken generally along line 27-27 of FIG. FIG. 3 shows a bottom perspective view of a driver golf club head, a fairway wood golf club head, and a hybrid golf club head. FIG. 3 shows a bottom perspective view of a driver golf club head, a fairway wood golf club head, and a hybrid golf club head. FIG. 3 shows a bottom perspective view of a driver golf club head, a fairway wood golf club head, and a hybrid golf club head. FIG. 6 illustrates another golf club head having a gap in the club head body and an adjustable weight arrangement in accordance with one or more aspects described herein. FIG. FIG. 6 illustrates yet another golf club head aspect having a void in the club head body and an adjustable weight arrangement of one or more aspects described herein. FIG. FIG. 6 illustrates yet another golf club head aspect having a void in the club head body and an adjustable weight arrangement of one or more aspects described herein. FIG. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein. FIG. 4 shows various views of an exemplary adjustment member that can be utilized with the golf club head described herein.

  The figures referred to above are not necessarily drawn to scale, but are to be understood as providing representations of particular aspects of the invention, which are conceptual in nature and illustrate the principles involved. It's just what you do. Some features of the golf club and golf club head structure shown in the drawings have been expanded or distorted relative to other features for ease of explanation and understanding. In certain instances, the same reference numbers are used in the drawings for similar or identical components and features shown in various alternative embodiments. The golf clubs and golf club head structures described herein may have configurations and components that are determined in part by the intended application and environment in which they are used.

DETAILED DESCRIPTION In the following description of various exemplary structures of the present invention, various exemplary articles that form part of this specification and that include one or more golf club structures or golf club head structures are illustrated. Reference is made to the accompanying drawings shown as: Furthermore, it will be appreciated that other specific arrangements of parts and structures may be utilized and structural and functional changes may be made without departing from the scope of the present invention. Also, in the present specification, “top”, “bottom”, “front”, “back”, “back”, “side”, “bottom” are used to describe various exemplary features and elements of the present invention. ”,“ Overhead ”may be used, but these terms are used herein for convenience based on, for example, the exemplary orientation shown in the figures and / or orientation in normal use. Nothing in this specification should be construed as requiring a specific three-dimensional or spatial orientation of the structure in order to fall within the scope of the invention. Furthermore, the present invention is generally described as relating to wood-type golf clubs. In particular, in an exemplary embodiment, the club head disclosed herein is a driver and a fairway wood. However, aspects of the present invention can be used with any of several types of golf clubs, including hybrid type golf clubs, utility clubs, putters, etc., and any description in this specification or drawings may It should not be construed as limiting the invention to use with type golf clubs.

  FIG. 1A generally illustrates an exemplary golf club 100 and / or golf club head 102 of the present invention. The entire golf club structure 100 of this example includes, in addition to the golf club head 102, a hosel 104, a shaft 106 housed in and / or inserted into and / or through the hosel 104, and the shaft 106. And a grip or handle 108 to be attached. In some cases, the external hosel 104 can be removed if desired, and the shaft 106 can be inserted directly into the head 102 and / or otherwise attached (eg, through an opening in the top of the club head 102). , Passing through an internal hosel (eg, provided in an internal chamber defined by the club head 102)). The hosel 104 may be considered an integral part of the golf club head 102 or may be a separate structure that is attached to the golf club head 102. As described in detail below, the golf club 100 may utilize an adjustment member 105 associated with the hosel 104 in one exemplary embodiment.

  The shaft 106 is received and engaged in the club head 102 and / or in any suitable or desired manner, including conventional ways known and used in the art, without departing from the invention. Can be attached. As a more specific example, the shaft 106 can be engaged with the club head 102 via the hosel 104 and / or, for example, adhesive, cement, welding, soldering, mechanical connectors (threads Directly attached to the club head structure 102, such as through a releasable and adjustable member or connector, or through a shaft receiving sleeve or element that extends into the body of the club head 102, etc. be able to. The shaft 106 is also known in the art, such as graphite-based materials, composite materials or other non-metallic materials, steel materials (including stainless steel), aluminum materials, other metal alloy materials, polymer materials, combinations of various materials, etc. Can be made from any suitable or desired material, including conventional materials used and used. Also, in any suitable or desired manner known in the art, including the conventional manner used, such as using adhesives or cement, or via welding, soldering, adhesives, etc. The grip or handle 108 can be attached to, engaged with and / or extended from the shaft 106, such as via a mechanical connector (such as threads, retaining elements, etc.). As another example, if desired, the grip or handle 108 can be integrally formed with the shaft 106 as a single piece piece. Furthermore, any desired grip or material including, for example, rubber material, leather material, rubber material or other material, including string material or other fabric material embedded therein, polymer material, etc., without departing from the invention A material for the handle 108 can be used.

  The club head 102 itself may also be conventional, as known and used in the art, for example, in any suitable or desirable manner and / or from any suitable or desirable material without departing from the invention. It can be constructed from materials and / or in a conventional manner. For example, in the exemplary club head 102 shown in FIGS. 1A and 1B, the club head 102 includes a front surface 102a, and the front surface is a ball striking surface 102b (a ball striking surface such that the ball striking surface plate and frame together form the entire ball striking surface 102a. And optionally including a ball striking face plate formed integrally with 102a or attached to the club head. The front surface 102a can be considered as a hitting surface 102a. Club head 102 may further include an upper or crown 102c, a sole 102d, a toe 107 and a heel 109. Club head 102 may include a rear portion 111 (FIG. 2).

  A wide variety of overall club head configurations are possible without departing from the invention. For example, if necessary, a plurality of pieces that are connected together (eg, by welding, adhesives or other fusion techniques, mechanical connectors, etc.), some or all of the various individual parts of the club head 102 It can be made from. A variety of parts (e.g. crown, sole, front, rear) from any desired material and combinations of different materials, including materials used and known in the art, such as metal materials including lightweight metal materials Etc.) can be produced. More specific examples of suitable lightweight metal materials include steel, titanium and titanium alloys, aluminum and aluminum alloys, magnesium and magnesium alloys, and the like. Additionally or alternatively, various parts of the club head can be formed from one or more composites. Injection molded parts are also possible. The club head 102 can also be made by forging, casting, or other desired processes conventionally known in the art and including the club head forming process used. Further, the golf club head 102 may be formed in a single integral piece.

  The various individual parts that make up the club head structure 102, when made from a plurality of pieces, are connected to each other in any suitable or desirable manner, including conventional ways known and used in the art. They can be engaged and / or held together. For example, various parts of the club head structure 102, such as the front face 102a, the ball striking face 102b, the upper part 102c, the sole 102d, can be glued, cemented, welded, soldered or other bonding or finishing techniques (threads, screws, They can be joined and / or secured together (directly or indirectly via an intermediate member) such as by mechanical connectors (such as nuts, bolts or other connectors). If desired, the mating edges of the various parts of the club head structure 102 may be of corresponding grooves, slots, surfaces, ledges, openings or other structures provided in or on the opposite side edge to which it is joined. It may include one or more raised ribs, tabs, ledges or other engaging elements that fit in or on. Cement, adhesives, mechanical connectors, finishing materials, etc. used in combination with the raised ribs / grooves / ledges / edges or other connecting structures described above to secure the various parts of the club head structure 102 together Can help further.

  The dimensions and / or other characteristics of example golf club head structures of the present invention may vary significantly without departing from the present invention, and the dimensions are generally the same for similar club heads and clubs in the art. It may coincide with the dimensions used.

  Several aspects of golf club heads are disclosed herein. It will be appreciated that the descriptions of the club head and various components described above with respect to FIGS. 1A and 1B and 2 apply to other embodiments described herein. It will be appreciated that several different aspects can utilize geometric weighting features. Geometric weighting features can provide reduced head weights and / or redistributed weights to achieve the desired performance. For example, more weight can be placed towards the heel and toe rear ends of the club head 102. In various aspects disclosed herein, the golf club head 102 can have a body having spaced apart legs that are spaced between the legs. Is defined. The club head herein may be considered partially removed to define a void, space or gap. The body can include a cover, which is positioned over the gap and / or the leg and can be an integral component of the body or can be separately attached. For certain embodiments, additional support members and / or weight assemblies may be utilized. The adjustment member may be utilized in conjunction with some aspects described herein.

  Figures 3-33 disclose further embodiments of club heads according to aspects of the present invention. In particular, FIGS. 3-21 disclose golf club head embodiments of at least some aspects of the present invention, generally designated by the reference numeral 200. Golf club head 200 generally includes a golf club head body 202 and a cover 204. In this particular embodiment, the cover 204 is formed as an integral part of the club head body 202, for example by casting. The golf club head 200 has a corresponding geometric weighting feature. The golf club head 200 generally has a front or ball striking face 208, a rear portion 210, a top 212 or crown 212, a sole 214, a heel 216 and a toe 218. These structures correspond to those described above with respect to FIGS. 1A, 1B and 2, with the ball striking face 208 corresponding to the front face 102a, the rear part 210 corresponding to the rear part 111, the crown 212 corresponding to the crown 102c, and the sole 214 being It will be appreciated that the heel 216 corresponds to the heel 109 and the toe 218 corresponds to the toe 107, corresponding to the sole 102d. It will further be appreciated that the golf club head body 202 defines an internal cavity 219.

  As shown in FIGS. 3-14, the golf club head body 202 has a base member 220 and a first leg 222 and a second leg 224. In this embodiment, the club head body 202 is generally unitary so that the base member 220 and the legs 222, 224 can be regarded as depending from the cover 204. Thus, the cover 204, which in this embodiment is generally a crown 212, is attached or connected to the sole 214 by additional structures as described herein. Base member 220 generally extends from heel 216 to toe 218 and defines a ball striking face 208 on one side. The base member 220 assists in defining a portion of the internal cavity 219, and in the exemplary embodiment, the internal cavity 219 extends from the inner surface of the ball striking face 208 to the interior area defined by the legs 222, 224 and the cover 204. Extends to the end. As can be seen from the drawing, the inner surface of the ball striking face 208 faces the internal cavity 219 and further includes the portion of the internal cavity 219 defined by the first leg 222 and the second leg 224. I'm in touch. The ball striking face 208 utilizes a variable face configuration and can be separately connected to the club head body 202. The variable face configuration may take one of the forms disclosed and described in US patent application Ser. No. 13 / 211,961, incorporated herein by reference and made a part thereof. As shown in FIG. 12, in one exemplary embodiment, the ball striking surface 208 can have a plurality of thicknesses in a stepped configuration, with a central portion of the ball striking surface 208 having a thickness of about 3.5 millimeters; It steps into an intermediate portion having a thickness of about 2.8 millimeters, which is further stepped into an outer portion having a thickness of about 2.1 millimeters. Other variable face thickness configurations are possible without departing from the principles of the present invention.

  As shown in FIGS. 7-8, the first leg 222 extends away from the ball striking face 208 and the second leg 224 extends away from the striking face 208. The first leg 222 and the second leg 224 extend toward the rear portion 210 of the club at the heel 216 and toe 218 of the club head 200, respectively. In the exemplary embodiment, the legs 222, 224 consistently extend from the boundary area 228 described below toward the heel 216 and the rear 210 of the toe 218. Accordingly, the legs 222, 224 extend outwardly from the boundary area 228 toward the heel 216 and toe 218 of the club head 200 in a generally linear arrangement. The legs 222, 224 can extend in a non-linear arrangement. Legs 222, 224 can also extend to different lengths to achieve additional weight distribution and performance characteristics.

  The club head 200 utilizes geometric weighting features, and in an exemplary embodiment, a gap 226, ie a space or gap, is defined between the first leg 222 and the second leg 224. Accordingly, this portion of the golf club head 200 may be considered removed to form or define the void 226. In a further exemplary embodiment, the void 226 is generally V-shaped. Accordingly, the first leg 222 and the second leg 224 approach each other and generally meet at the boundary area 228. The air gap 226 has a wider dimension at the rear portion 210 of the club head 200 and a narrower dimension generally in the boundary area 228 adjacent to the central region of the club head 200. The air gap 226 leads to the rear part 210 of the club head 200. In one exemplary embodiment, the boundary area 228 has a height H and is disposed proximate to a central portion or region of the body 202 and defines a base support wall 230. The base support wall 230 may have a rounded surface that faces the gap 226. As described in more detail below, the first leg 222 defines a first wall 222a and the second leg 224 defines a second wall 224b. The proximal end of the first wall 222a is connected to one end of the base support wall 230, and the proximal end of the second wall 224b is connected to the other end of the base support wall 230. From the drawings, it will be appreciated that the base support wall 230 may extend between the sole surface and the underside of the cover 204 in a generally vertical arrangement. In the exemplary embodiment, the base support wall 230 extends obliquely from the sole surface with respect to the vertical axis. Thus, the base support wall 230 can extend along its length toward the rear 210 of the club head or toward the ball striking face 208. The base support wall 230 may abut the sole surface of the golf club head 200 to define a ridge position. It will be appreciated that the legs 222, 224 and the walls 222a, 224b can vary in length and can also be of different lengths. It can be assumed that the outer surfaces of the walls 222a, 224b face the air gap 226 and form part of the exterior of the golf club head 200.

  An angle A is defined between the leg 222 and the leg 224, and this angle can vary in power, including a right angle, an acute angle or an obtuse angle. In one exemplary embodiment, the angle A can be in the general range of 30 degrees to 100 degrees, more specifically 45 degrees to 90 degrees. Further, it will be appreciated that the angle A can vary from a position close to the sole 214 to a position close to the underside of the cover or crown 212. Thus, as shown in FIG. 21B, angle A1 can be provided on the lower surface of the crown (ie, at the junction of the hanging wall and the lower surface of the crown), and angle A2 is proximate to the sole. Can be provided. The angle A can also vary along the length of the legs 222,224. The legs 222, 224 can also extend asymmetrically at different angles from the boundary area 228 to provide the desired performance characteristics. Further, the gap 226 and also the legs 222, 224 are arranged around the central region, for example, arranged more rotated towards the rear heel of the club head 200 or more towards the rear toe of the club head 200. It will be understood that it can also be arranged in a pivoted arrangement. It will also be appreciated that the boundary area 228 can be located at various locations between the heel 216 and the toe 218 of the golf club head 200. Although a V-shaped void 226 is formed, the void 226 may take other forms, including a more U-shaped void, where the boundary area 228 defines a more extended base support wall 230. However, the base support wall separates the legs 222, 224 even when the legs 222, 224 extend at an angle with respect to the ball striking face 208 or are generally lateral. It will be appreciated that the base support wall 230 may vary in width.

  With such a construction, it will be appreciated that the internal cavity 219 does not extend completely from the inner surface of the ball striking face 208 to the rear portion 210 of the golf club head 200. Accordingly, the internal cavity 219 is interrupted near the central region of the club head 200. Further, the geometric weighting features described herein generally have a width of the geometric weighting features proximate to the rear 210 that is greater than the width of the geometric weighting features proximate to the ball striking face 208. It will be understood that it is V-shaped.

  As further shown in FIGS. 7-8, the first leg 222 defines a first wall 222a having a first outer surface 232 and the second leg 224 has a second outer surface 234. A second wall 224b having is defined. Further, it will be appreciated that the first inner surface 232a is defined on the opposite side of the first outer surface 232 and faces the internal cavity 219. Similarly, the second inner surface 234b is defined on the opposite side of the second outer surface 234 and faces the internal cavity 219. Each side 232, 234 has a proximal end 236 located at the interface area 228 and further has a distal end 238 located at the rear 210 of the club 200. In the exemplary embodiment, distal end 238 extends inwardly from the majority of sides 232, 234. As can be seen from FIGS. 7-8, the distal ends 238 of the sides 232, 234 extend inward to shorten the length of the arc 239 in the rear 210 of the club head 210 between the distal ends 238. . This can have a desired effect on the sound characteristics of the golf club head 200. In still other exemplary embodiments, such a desired effect may extend the distal end 238 outward, and thus extend the arc 239 of the rear portion 210 between the distal ends 238. The distal end 238 can also have a linear arrangement. The respective height of the distal end 238 further decreases toward the rear 210 of the club head 200. As can be seen from FIGS. 7-8, the first leg 222 and the second leg 224 and the first wall 222a and the second wall 224b extend from the crown 212 to the sole 214, and the crown 212 and the sole 214 And connect. The first outer surface 232 and the first inner surface 232a extend from the crown 212 to the sole 214. The second outer surface 234 and the second inner surface 234b also extend from the crown 212 to the sole 214.

  As further shown in FIG. 7, the sides 232, 234 and the walls 222a, 224b have a greater height at the proximal end 236, and these surfaces go to a smaller height towards the distal end 238. Extend. This height generally corresponds to the height H schematically shown in FIG. For example, in one exemplary embodiment of a driver type golf club head, the height of the sides 232, 234 at the proximal end 236 from the underside of the cover 204 to the sole of the club head 200 near the base support wall 230 is It is about 48-62mm. This height can be regarded as the depth of the void 226 proximate to the boundary area 228. In one particular driver type golf club head, this height is about 52 millimeters and the ball striking face height at the face center of the golf club head is about 58 millimeters. The striking face height FH is generally measured in the face center from the ground to the face height point represented by the center of curvature between the crown and the striking face, and is generally shown in FIG. Yes. In another particular driver type golf club head, this height is about 60 millimeters and the ball striking face height at the face center is about 62 millimeters. In a fairway type golf club head, this height is about 33 millimeters, and the height of the hitting surface at the face center is about 35 millimeters. In the hybrid type golf club head, this height is about 33 mm, and the hitting surface height at the face center is about 38 mm. Generally, this height can be about 85% to 100% of the ball striking face height at the face center of the golf club head. Such a configuration allows the dimensions of the cover or crown to be determined so that the desired performance characteristics of the club head are achieved. The height of the sides 232, 234 from the underside of the cover 204 proximate the distal end 238 to the sole 214 is generally smaller at the distal end 228.

  In one exemplary embodiment, each side 232, 234 has a plurality of ribs 240 or ridges extending from the proximal end 236 toward the distal end 238. Thus, the side surfaces 232, 234 have a stepped configuration or wavy undulations. Such a structure helps to add a certain amount of stiffness to the body 202. It will be appreciated that a single rib 240 may be used, and that only one leg 222, 224 may have a rib 240. The ribs 240 may further vary in length along the legs 222, 224 and may be disposed diagonally along the legs 222, 224 or may have a more vertical arrangement. Other stiffness enhancing structures can also be used in the legs 222, 224 or other portions of the golf club head 200. Further, in the exemplary embodiment, the first leg 222 is generally defined by the first side 232 and the club head body 202 that forms the heel 216 of the club head 200, and the second leg 224 is generally It will be appreciated that the second side 224 is defined by the club head body 202 that forms the toe 218 of the club head 200. As can be seen from the drawing, the sole 214 of the club head body 202 is adjacent to the ball striking face 208 toward the central region of the club head 200 in the boundary area 228 and the first leg 222 and the second It can be defined up to the distal end of the leg 224.

  As can be further seen in FIGS. 7-9, in the exemplary embodiment, the first wall 222 a has a first outer surface 232 that is outward from the club head body 202 and faces the air gap 226. The first wall 222a further has a first inner side 232a facing the inner cavity 219 of the club head body 202. In the exemplary embodiment, the second wall 224 b has a second outer surface 234 that is outward from the club head body 202 and faces the air gap 226. The second wall 224 b further has a second inner side 234 b that faces the inner cavity 219 of the club head body 202. Walls and surfaces extend from the crown 212 or cover 204 to the sole 214 and generally bind these structures together.

  Club head body 202 defines additional internal support structures in internal cavity 219 to improve the characteristics of club head 200. The structure may be an internal support member, gusset or fin disposed in the internal cavity 219 to provide additional support to the club head 200 components. Accordingly, as shown in FIG. 9, the club head 200 includes a first gusset member 250 and a second gusset member 252. In the exemplary embodiment, the first gusset member 250 and the second gusset member 252 are triangular members, particularly generally right-angled triangular members, but the gussets 250, 252 have a specific contoured outer side. It will be understood that this is possible. Gusset 250, 252 may have a constant thickness or a variable thickness. The first gusset member 250 is disposed proximate to the inner surface of the first leg 222 and the inner surface of the boundary area 228. In particular, the first gusset member 250 is disposed proximate to the proximal end of the first inner surface 232a. The second gusset member 252 is disposed proximate to the inner surface of the second leg 224 and the inner surface of the boundary area 228. In particular, the second gusset member 252 is disposed proximate to the proximal end of the second inner surface 234b. The first gusset member 250 is spaced from the second gusset member 252. In particular, the first gusset member 250 has one side connected near the first boundary joint 254 between the base support wall 230 and the first leg 222, i.e., the first side, And has a lower side connected to the inner sole surface 258, ie, a second side. Similarly, the second gusset member 252 has one side connected near the second boundary junction 256 between the base support wall 230 and the second leg 224, i.e., the first side. And a lower side connected to the inner sole surface 258, ie, a second side. Gusset members 250, 252 generally extend from the base support wall 230 toward the ball striking face 208. It will be appreciated that the gusset members 250, 252 can be moved inward and connected on the inner surface of the base support wall 230.

  As further shown in FIG. 9, the gusset members 250, 252 extend upward over a portion of the base support wall 230 in the boundary area 228. This distance can vary and may or may not extend over the entire lower surface of the cover 204 of the club head 200. Similarly, the gusset members 250, 252 are dimensioned to extend along a portion of the inner sole surface 258, and the distance can also vary. 10 and 11 show further views of the gusset members 250,252. In the exemplary embodiment, the gusset members 250, 252 expand on the inner sole surface 258 when extending toward the ball striking face 208, as indicated by the arrows in FIG. As shown in FIG. 10, it will be understood that the gusset members 250, 252 may extend diagonally and vertically on the surface of the base support wall 230. It will be appreciated that additional support members may be connected between the gusset members 250, 252 if desired. Based on the particular configuration of the club head 200, it has been found that portions of the club head 200 can be deflected, for example, in the boundary area 228, during a ball collision. The sound of a ball collision is also affected by the specific configuration of the golf club head 200.

  The first gusset member 250 and the second gusset member 252 serve to add rigidity, stiffness and load strength at the boundary area 228 as desired to provide desired performance characteristics including acoustic properties. Limit the flexion. Increased durability is also realized. Gusset members 250 and 252 do not add significant additional weight to the golf club head 200. In such a configuration, the weight distribution can be further maximized to move toward the rear of the heel 216 and toe 218. Also, the configuration of the gap 226 can be maximized. With these structures, the acoustic characteristics of the golf club head 200 at the time of ball collision are further adjusted to a desired frequency level. Note that the sole surface is generally solid where the gusset member engages and extends along the inner surface of the sole 214. Thus, in an exemplary embodiment, no other weight port structure is placed on the gusset member.

  It will be appreciated that additional gusset members may be utilized if desired, or gusset members having configurations different from those shown may be utilized. For example, a plurality of gusset support members may extend around different locations in the boundary area or the inner surface of the first leg and the second leg. The gusset members 250, 252 may be connected at the inner surfaces 232a, 234b of the legs rather than at the boundary joints 254, 256. Gusset members 250, 252 may extend and be connected to the other inner surface of the club head. Further, the gusset members 250, 252 may be dimensioned to extend toward the rear of the golf club head 200 across the boundary face area 228 and against the inner surfaces 232a, 234b of the legs 222, 224. is there. Gusset members 250, 252 are metal members in one exemplary embodiment, but other materials including composite materials are possible. It will further be appreciated that the gusset support member may be cast or formed integrally with the club head body in the same forming process. The gusset support members may be formed separately and then connected as described above, for example by welding, adhesives or other connection techniques. In one exemplary embodiment, the gusset member is shown as a triangular member, but the gusset member may have many different shapes and sizes. The gusset member may further have specific notches or contours as desired.

  As further shown in FIG. 8, the boundary area 228 is located in a generally central portion or central region of the club head 200 between the ball striking face 208 and the rear portion 210 of the golf club head 200. The club head 200 has a depth dimension B that is generally defined as the distance from the ball striking face 208 of the club 200 to the rear 210 (see, eg, FIG. 2). As further shown in FIGS. 15-17, the base support wall 230 of the boundary area 228 proximate to the sole surface is located at a distance of about “x” from the ball striking face 208. Alternatively, the base support wall 230 in the boundary area 228 proximate to the sole surface is placed at a distance of about “y” from the rear portion 210 of the golf club head 200. Considered alternatively, the boundary area 228 is approximately 30% to 60% of the depth B of the club 200 measured from the striking face 208, or 40% to 70% of the depth B of the club 200 measured from the striking face 208. Can be placed in the range. In a further exemplary embodiment, this range is approximately 40% to 50% of the depth B of the club 200 measured from the striking face 208, or 40% to 60% of the depth B of the club 200 measured from the striking face 208. It is possible. In one exemplary embodiment of a driver type club, the overall depth is about 4.365 inches and the distance from the ball striking face 208 to the support wall 230 is about 1.875 inches. In another exemplary embodiment of a driver type club, the total depth is about 4.45 inches and the distance from the ball striking face 208 to the support wall 230 is about 2.6 inches. In one exemplary embodiment of a fairway wood type golf club, the overall depth is about 3.375 inches and the distance from the ball striking face 208 to the support wall 230 is about 1.5 inches. In another exemplary embodiment of a fairway wood type golf club, the overall depth is about 3.375 inches and the distance from the ball striking face 208 to the support wall 230 is about 1.7 inches. In one exemplary embodiment of a hybrid type golf club, the overall depth is about 2.375 inches and the distance from the ball striking face 208 to the support wall 230 is about 1.125 inches. In another exemplary embodiment of a hybrid type golf club, the overall depth is about 2.375 inches and the distance from the ball striking face 208 to the support wall 230 is about 1.25 inches. From these listed dimensions, the distance y from the rear portion 210 of the club 200 to the base portion support wall 230 can be easily determined. It has been found that these dimensions can further affect the bending of the club head body during a ball collision and can affect the desired acoustic characteristics of the golf club head 200. FIGS. 15-17 disclose further alternative embodiments of the golf club head 200. As shown in FIG. 12, the base portion support wall 230 and the boundary area 228 are located closer to the ball striking face 208. Further, in FIGS. 13 and 14, the base support wall 230 and the boundary area 228 are located away from the ball striking face 208 and closer to the rear 210 of the club head 200. Therefore, these modes can be used according to the desired characteristics of the club head 200.

  As further shown in FIGS. 7-8, it will be appreciated that the outer bottom surface of the base portion 220 and legs 222, 224 generally define the sole 214 of the club head 200. It will further be appreciated that the length of the base 220 from the ball striking face 208 to the boundary area 228 may vary as desired. The first leg and / or base has a first recessed area 260 proximate to the heel 216 of the club head 200 and the second leg and / or base is a toe 218 of the club head 200. Has a second recessed area 262 proximate to. Further, the first recessed area 260 is in communication with the bore 264. The bore 264 is sized to accommodate a releasable and adjustable connection mechanism for connecting the shaft to the club head 200, for example via the hosel 104. It will be appreciated that the connection mechanism may be configured to have the ability to adjust the loft angle, face angle and / or lie angle. It will further be appreciated that the connection mechanism may take a variety of different forms and may simply form an unadjustable connection that non-adjustably connects the shaft to the golf club head. The releasable and adjustable connection mechanism may be further considered as an adjustment member, and further exemplary aspects are described in further detail below.

  As further shown in FIG. 8, the sole 214 has a transition area 290, or transition surface 290, defined therein. Transition zone 290 helps when the club head shifts from the void zone to the sole zone. Generally, the transition zone 290 is proximate to the boundary between the first wall 222a and the second wall 224b and the respective sole surfaces defined by the first leg 222 and the second leg 224. It is further provided and provides a joint area between such structures. Transition area 290 has a first transition surface 292 and a second transition surface 294. The first transition surface 292 is rounded between the first wall 222a and the sole surface 222c of the first leg 222, thereby providing a more vertical first wall 222a and a more horizontal sole surface 222c. In between, providing a smooth transition that is generally transverse to the first wall 222a. The first transition surface 292 has a central segment 296, the central segment has a proximal segment 298 extending therefrom, and further includes a distal segment 300 extending from the central segment 296 opposite to the proximal segment 298. Have. The central segment 296 is located proximate to the boundary area 228 and generally has the maximum width of the first transition surface 292. The proximal segment 298 extends toward the ball striking face 208 and is tapered from the central segment 296 toward the ball striking face 208. The proximal segment 298 is tapered to a point, but the proximal segment 298 is generally transverse to the ball striking face 208. As further shown, the proximal segment 298 is comprised of a plurality of segments. The distal segment 300 generally extends along the first wall 222a and is tapered from the central segment 296 toward the rear portion 210 of the golf club head 200. The distal segment 300 generally extends to the rear heel area of the golf club head 200. The first transition surface 292 defines a generally straight baseline 302 that extends between the proximal segment 298 and the distal segment 300.

  The second transition surface 294 is rounded between the second wall 224 and the sole surface 224c of the second leg 222, thereby providing a more vertical second wall 224b and a more horizontal sole surface 224c. In between, providing a smooth transition that is generally transverse to the second wall 224a. Similar to the first transition surface 292, the second transition surface 294 has a central segment 304, the central segment has a proximal segment 306 extending therefrom, and from the central segment 304 to the proximal segment 306. It further has a distal segment 308 extending in the opposite direction. The central segment 304 is located proximate the boundary area 228 and generally has the maximum width of the second transition surface 294. The proximal segment 306 extends toward the ball striking face 208 and is tapered from the central segment 304 toward the ball striking face 208. The proximal segment 306 is tapered to a point, but the proximal segment 306 is generally transverse to the ball striking face 208. As further shown, the proximal segment 306 is comprised of a plurality of segments. The distal segment 308 generally extends along the second wall 224b and is also tapered from the central segment 304 toward the rear portion 210 of the golf club head 200. The distal segment 308 generally extends to the rear toe area of the golf club head 200. The second transition surface 294 defines a generally straight baseline 310 that extends between the proximal segment 306 and the distal segment 308.

  The first transition surface 292 and the second transition surface 294 generally provide a joint area between the more vertically oriented walls 222a, 224b and the sole surfaces 222c, 224c. Transition surfaces 292, 294 may generally include convex surfaces, ie, outwardly rounded or contoured surfaces. The radius of curvature, or contour, can vary along the generally curved extent of the surface and may or may not be a constant radius of curvature at any one location. Furthermore, it will be appreciated that the transition surface may include a generally concave surface, ie, an inwardly rounded or contoured surface. The radius of curvature, or contour, can vary along the generally curved extent of the surface and may or may not be a constant radius of curvature at any one location. It will also be appreciated that the surfaces 292, 294 can have a chamfered configuration. The transition surfaces 292, 294 may also be a more inclined plane between the wall and the sole surface, if desired, or may have a more angular configuration. Further, such a combination of configurations is possible. Transition area 290 and surfaces 292, 294 can reduce the intersection of the surfaces and provide a more rounded or contoured configuration. These areas further assist in attaching the crown 212 to the sole 214. In one exemplary embodiment, the first transition surface 292 and the second transition surface 294 have generally equal lengths and extend along most of the surface of the sole 214. It will be appreciated that such lengths can be different, and that the lengths of each of the transition surfaces 292, 294 can be different if desired. Transition surfaces 292, 294 further assist in achieving the desired acoustic characteristics of the golf club head.

  FIG. 18 shows another view of the sole 210 of the golf club head 200. The sole 214 generally has various surface breaks across the entire surface of the sole 214. Not only the first transition surface 292 and the second transition surface 294, but also a gap 226 is provided. A first recessed area 260 and a second recessed area 262 having a bore 264 are also provided. These structures provide various surface breaks on the surface of the sole 214. The sole 214 further provides an unbroken area 320 on the surface of the sole 214. The approximate boundaries of the unbroken area 320 are indicated by the phantom lines shown in FIG. The unbroken area 320 does not have any ledges, ridges, protrusions, ridges, etc., including any indicia markings.

  The uninterrupted area 320 generally includes a base section 322, a first segment 324 extending from the base section 322, and a second segment 326 extending from the base section 322. In one exemplary embodiment, the first segment 324 is spaced from the second segment 326. In particular, the first segment 324 is spaced from the second segment 326 by the first transition surface 292. Base section 322 is generally located adjacent to ball striking face 208 and is generally midway between heel 216 and toe 218. Base section 322 defines a substantially smooth surface and has no surface breaks, including no indicia markings. The first segment 324 extends obliquely from the base section 322 along the first leg 222. In the exemplary embodiment, first segment 322 is disposed between first concave surface 260 having bore 264 and first transition surface 292. The first segment 324 can extend to various lengths along the first leg 222. The first segment 324 has a generally longitudinal axis L extending obliquely with respect to a plane PL generally defined by the ball striking face 208, shown schematically in FIG. The first segment 324 may be considered to define a path surface and has no surface breaks, including no indicia markings. The second segment 326 extends from the base section 322 away from the ball striking face 208 and toward the gap 226. In the exemplary embodiment, the second segment 326 extends close to the boundary area 228 and is generally transverse to the ball striking face 208. The second segment 326 can be considered as a second path surface and has no surface breaks, including no indicia markings. It will be appreciated that the particular location, shape and size of the uninterrupted area 320 can vary. Base member 322 may be maximized to accept various lie angles of the golf club. The unbroken area 320 generally defines a smooth surface along the sole 214. Thus, the uninterrupted area 320 has a surface morphology that is generally smooth, constant, unchanged, and without any indicia or other markings throughout its range. The uninterrupted area 320, in particular the first segment 324 and the second segment 326, cooperates with the adjustment member 105 when preparing for a golf shot to ensure the desired golf club alignment by the golfer (e.g. When arriving at the club). This will be described in more detail below.

  3-8 disclose a cover 204. FIG. As will be described, in this embodiment, the cover 204 is integrally formed as part of the club head body 202 and generally defines the crown 212 of the club head 200. The cover 204 is connected to the club head body 202 and is configured to cover at least a part thereof. The cover 204 may have a certain amount of curvature on the outer top surface. In the exemplary embodiment shown in FIGS. 3-8, cover 204 is sized to substantially cover club head body 202.

  Cover 204 covers gap 226 and first leg 222 and second leg 224. The first leg 222 and the second leg 224 can be considered to hang from the cover 204. In such a configuration, the first segment 270 of the cover 204 can be considered to be placed over the internal cavity 219, as shown generally in FIG. Can be thought of as being placed on top of In the exemplary embodiment, the surface area of the first segment 270 is generally greater than the surface area of the second segment 272. In addition, the second segment 272 is part of the entire area of the crown 212 or cover 204. The cover 204 has a curved outer periphery at the rear that extends over and just beyond the distal ends of the first leg 222 and the second leg 224. In certain exemplary embodiments, the cover 204 defines a rear portion 210 of the club head 200 having the outermost periphery of the club head 200. When the club head body 202 is formed with the recesses described above, the peripheral portion of the cover 204 is sized to correspond to the shape of the recesses on the club head body 202. The lower surface of the cover 204 faces and communicates with the air gap 226. In addition to the sensor attachment shown in other embodiments, other structures may be attached to this surface. The lower surface of the cover 204 facing the gap 226 can have a frame member that is bonded thereto via an adhesive. The frame has sufficient rigidity and the adhesive has sufficient elasticity to promote durable bonding and vibration damping properties. The frame material can be fiber reinforced plastic, metal, plastic or the like. The adhesive may be epoxy, silicone adhesive or 3M VHB double sided tape. One exemplary embodiment of the plaque member 242 or medallion 242 is fastened to the lower surface of the cover in the cavity of FIG. Medallion 242 may have a perimeter that generally corresponds to the periphery defined by gap 226 on the lower surface of cover 204. As described above, the frame 204 may have a display facing the air gap thereon. As will be described, the cover may wrap the sole surface of the golf club so as to completely enclose the gap 226, which is not visible from the top or bottom of the club head 200. However, in the exemplary embodiment, cover 204 extends over gap 226 and legs 222, 224, and in the address position, golf club head 200 has the appearance of a traditional golf club head, and void 226 is not visible.

  As further shown in FIGS. 3-9, the cover 204 is integrally formed as part of the club head body 202. In one exemplary embodiment, the club head body 202 is formed in a casting manufacturing process. In a further exemplary embodiment, the club head body 202 is cast entirely from titanium. It will be appreciated that other metal materials, or composite materials, or plastic injection molding materials, or combinations thereof may be used. For certain materials, additional coating processes may be used to add additional strength. It will also be appreciated that the ball striking face 208 is separately connected to the golf club head body 202, for example in a welding operation. It will be further appreciated that alternative connection mechanisms between the body 202 and the cover 204 may be used if a one-piece connection is not used. Cover 204 and club head body 202 can be glued, cemented, welded, soldered or other bonding or finishing techniques, mechanical connectors (such as threads, screws, nuts, bolts or other connectors), interference fits, etc. Can be connected, joined, fastened or fixed together (directly or indirectly via an intermediate member). As can be appreciated, the cover 204 can be considered to generally form the crown of the club head 200. The remaining portion of the club head body 202 defines a ball striking surface and a depending leg that is spaced apart to define a gap under the cover. The cover may be finished in a specific color so that it is visually different from the rest of the golf club head.

  It will be appreciated that the structure of the golf club head 200 described herein cooperates to form a club head with improved properties. The void structure provides the ability to distribute more weight towards the rear of the heel and toe. In a further exemplary embodiment, a club head 200 is constructed that can increase the wall thickness of the first and second legs in the manufacturing process such that the weight further increases toward the rear in the toe and heel. Sometimes. The wall thickness at the distal end of the leg can be increased so that a weight is added at the rear of the toe and heel. It will be further appreciated that the weight member may be supported inside the legs. Additional structures such as gusset members provide the desired amount of stiffness and flex. The resulting club head provides improved performance and acoustic properties.

  22-27 disclose further embodiments of club heads according to at least some aspects of the present invention, which are again generally assigned reference numeral 200. Because of the similarities in structure and configuration of the club head shown in FIGS. 3-11, further features and differences will be described based on the understanding that the above description is applicable to the club head 200 shown in FIGS. To do. In this embodiment, the golf club head 202 includes a receptacle or weight port 280 on the sole surface of the club head 200. The weight port 280 is located proximate to the boundary area 228 and in particular on the base support wall 230 adjacent to the gap 226. The weight port 280 may have an internal thread or other additional connection structure. A weight member 282 is provided, which may have multiple parts, male threads or other connection mechanisms. The weight member 282 may have a specific weight value and can be secured in the weight port 280. The weight member 282 may include a plurality of parts connected together to provide weight adjustability. The use of the weight member 282 within the weight port 270 allows the golfer to customize the golf club swing weight as desired. It will be appreciated that an internal support member or gusset is not utilized in this embodiment, particularly weight port 280, but such a structure may be incorporated if desired.

  It will be appreciated that the embodiments described herein with respect to FIGS. 1-27 may be considered a driver type golf club head. The principles of the present invention also apply to other types of golf club heads, including fairway woods and hybrid golf club heads. FIGS. 28-30 disclose various types of such golf club heads, such as driver golf club heads, fairway wood golf club heads and hybrid golf club heads. Each club head defines an air gap 226, and the respective dimensions of the air gap, wall, boundary area, etc. vary from one club head type to another. Each golf club head may include a decorative board or medallion as described above.

  As described above, the geometric weighting features of the golf club head described herein allow for better performance characteristics, including moment of inertia (MOI) characteristics, center of gravity (CG) characteristics, and acoustic characteristics. Provide structure.

  As described above, the geometric weighting characteristics allow for the weight to be moved generally from the rear of the club head sole toward the rear heel of the club head and the rear toe of the club head. In one exemplary embodiment of the present invention, about 5% of the golf club head mass is moved in this manner. Such a configuration provides a high moment of inertia (MOI) (Izz) about a vertical axis (z axis) that passes through the center of gravity (CG) of the club head. Maintaining a higher MOI increases the ball speed during off-center ball collisions and reduces the effects of side spin caused by off-center collisions.

  Geometric weighting features also allow for better CG placement. The structure further allows for better CG placement such that the desired ball spin is imparted to the ball upon impact with the club head 102. In certain exemplary embodiments, the CG is positioned so that the amount of spin imparted to the ball upon impact is reduced. In the exemplary embodiment described herein, the CG is located within the internal cavity 219 of the golf club head 200. In order to achieve such a property, the CG is moved forward so that the vertical distance from the CG to the ball striking face of the head is minimized. The structure of the club head in which the weight is moved from the rear of the sole to the rear heel and rear toe areas allows the CG to be moved closer to the ball striking surface. When the vertical distance from the ball striking surface to the CG is larger (for example, when the weight is moved to the rear of the golf club head to increase the MOI), the ball back spin and the ball side spin A wide range of changes has been found to occur. The structure of geometric weighting features provides an optimal balance between MOI and CG characteristics where more efficient control of ball back spin and ball side spin is achieved. As a result, the ball carry distance when using the golf club head 200 is improved.

  The geometric weighting feature further provides better acoustic properties of the golf club head. The structure provides a more stiffened configuration that promotes higher natural frequencies and a more pleasant sound. In many conventional golf club head designs, the crown of the head is supported only at the periphery, which can lead to a relatively low natural frequency, and a more unpleasant sound is emitted to the golfer during a ball collision.

  As detailed with respect to the present golf club head 200 and other aspects described herein, in an exemplary embodiment of the present invention, the legs have walls defining a void and are integrally suspended from the crown. And adheres to the sole. Thus, in addition to being supported at the periphery, the crown is also supported at a position spaced inwardly from the periphery. The wall extends along the crown with a considerable distance, i.e. with a considerable footprint. The wall thickness can be about 0.7 mm, as can other configurations of the club head body 202, where the thickness can vary by about ± 10%. Such a configuration provides better sound characteristics when the club head's first flexing frequency is increased. Thanks to the increased stiffness provided by the configuration of the wall connecting the crown and the sole, a smaller portion of the crown emits any significant amplitude upon ball impact. Due to the higher frequency of the crown mode and the smaller amount of amplitude the crown emits, the amount of sound created by the club head is reduced compared to conventional golf club designs. The sound created is less intense and pitch is higher than the sound of conventional golf club designs. Therefore, the wall can be regarded as a sound reduction structure. The wall depends from the crown and connects to the sole. The inner surface of the wall faces the inner cavity 219, while the outer surface of the wall faces the exterior of the golf club head. The outer or outer surface of the wall can be considered to face the air gap and form part of the exterior of the club head. The wall may further be considered to be located within the outermost periphery defined by the golf club head.

  Further, it will be appreciated that the wall has a major length that extends from an end near the boundary area 228 to a point where the distal end bends inward to the rear of the club head 200. As can be seen from FIG. 21A, the first wall 222a defines a length L1 at the sole and also defines a length L2 at the lower surface of the crown. The second wall 224b defines a length L3 at the sole and also defines a length L4 at the lower surface of the crown. As shown in FIG. 21B, the length L5 represents the maximum gap distance between the wall 222a and the wall 224b. The distal ends of the legs 222, 224 bend inward and can eventually be separated by a smaller distance as shown by the phantom lines in FIG. 21B and the embodiment shown in FIG. It will be understood (and it will be appreciated that any of the club head embodiments described herein may utilize an inwardly bent end as shown in FIG. 17). Each length L1-L5 can be different and can also be different for different types of club heads. Table 1 below lists exemplary wall lengths and maximum air gap distances for various types of golf club heads according to exemplary embodiments of the present invention.

It will be appreciated that certain exemplary embodiments of the golf club head of the present invention are described in Table 1 and further tables describing various other data detailed below. Aspects include Driver # 1, Driver # 2, Fairway Wood-3W, Fairway Wood-5W and hybrid. Driver # 1 may be a modern tour type driver for advanced users having a volume of about 400-430 cm ³ . Driver # 1 golf club head has the following features: depth of about 106.6 mm, length of about 114.7 mm, head height of about 65.7 mm and face height of about 60.5 mm. It will be appreciated that these characteristics have been determined based on the USGA Procedure for Measuring the Club Head Size of Wood Clubs, USGA-TPX 3003. Driver # 2 may be a modern game improvement type golf club having a volume of about 430-460 cm ³ . The driver # 2 golf club head has the following features: a depth of about 114.5 mm, a length of about 119.8 mm, a head height of about 62.1 mm, and a face height of about 59.3 mm. Fairway wood-3W may have a volume of about 180-190 cm ³ . The Fairway Wood-3W golf club head has the following features: depth of about 87.8 mm, length of about 101.5 mm, head height of about 42.2 mm and face height of about 37.7 mm. Fairway wood-5W may have a volume of about 170-175 cm ³ . The fairway wood-5W golf club head has the following features: depth of about 84.9 mm, length of about 99.7 mm, head height of about 39.3 mm and face height of about 35.3 mm. The hybrid golf club may have a volume of about 120-125 cm ³ . The hybrid club head has the following features: a depth of about 62.3 mm, a length of about 101.2 mm, a head height of about 39 mm and a face height of about 37.8 mm.

  The lengths L1-L4 of the walls 222a, 224b provide a significant connection length between the crown 212 and the sole 214. The lengths L 2 and L 4 along the lower surface of the crown 212 further provide a significant length of the structure that is integral with the crown 212 and depends from the crown 212. Such a configuration provides better desired acoustic characteristics. The length L5, which represents the maximum distance between the legs in the air gap, can also be varied to achieve the desired performance characteristics and can be dimensioned for other parameters.

  20A-20B disclose additional features of the golf club head 200. FIG. As detailed with respect to FIG. 8, the golf club head 200 defines a void 226 therein. The first wall 222 a of the first leg 222 extends from the boundary area 228 toward the rear portion 210 and the heel 216 of the golf club head 200. The second wall 224 b of the second leg 224 extends from the boundary area 228 toward the rear portion 210 and the toe 218 of the golf club head 200. As further shown, the first wall 222a and the second wall 224b extend between and connect the crown 212 and the sole 214. One end of the walls 222a, 224b is connected to the lower surface of the crown 212 and extends therefrom toward the sole 214. The other ends of the walls 222a and 224b are connected to the sole 214. The walls 222a, 224b extend obliquely, and the walls 222a, 224 are inclined outwardly from the lower surface of the crown 212 to the sole 214 and away from each other, and are therefore tapered. The walls 222a, 224b generally widen when extending from the crown 212 to the sole 214. It will be appreciated that the walls 222a, 224b are disposed inwardly from the periphery of the club head body 202. It will be appreciated that the walls 222a, 224b are tapered or extend somewhat obliquely, but the walls 222a, 224b are generally oriented vertically. As shown in FIG. 20B, the generally lower surface of the crown 212 generally has a first gap perimeter P1 due to the arc of the crown between the base support wall 230, walls 222a, 224b and walls 222a, 224b. Is defined. As shown in FIG. 20A, the sole 214 generally has a second void perimeter P2 defined by the arc of the crown between the base support wall 230, the walls 222a, 224b and the walls 222a, 224b. As can be seen from the drawing, since the walls 222a and 224b are inclined outward from the lower side of the crown 212 to the sole 214, the first gap circumference P1 has a length smaller than the length of the second gap circumference P2. Have The second gap circumference P2 is longer than the first gap circumference P1. Thus, the void perimeter can be different. The first air gap periphery P1 can be regarded as a certain ratio of the second air gap periphery P2. The void perimeters P1, P2 can also be different for other types of golf club heads such as fairway wood and hybrid clubs. It will be appreciated that the walls 222a, 224b can be inclined and tapered at various angles that affect the air gap circumference and desired performance characteristics of the golf club head 200. Thus, the void perimeters P1, P2 can vary based on the desired performance characteristics of the golf club head. The void perimeters P1, P2 further define a joint area between the surrounding main side segments based on the structural configuration of the club head body 202 that defines the void. The joint may take various forms similar to the above, including convex or outwardly rounded contours, concave or inwardly rounded contours, bevels or more angular or linear angular configurations. Can do.

  Table 2 below lists exemplary void circumference data for various types of golf club heads according to exemplary embodiments of the present invention.

  Because the wall tapers outward and extends from the lower surface of the crown to the sole, the first void circumference P1 is generally smaller than the second void circumference P2. In an exemplary embodiment, the first void perimeter P1 can be within a certain percentage range of the second void perimeter P2. For Driver # 1 golf club head, the first void circumference may be about 80-90% of the second gap circumference, and in one particular exemplary embodiment, the first gap circumference is the second gap circumference. Of 85.6%. For driver # 2 golf club head also, the first void perimeter can be about 80-90% of the second void perimeter, and in one particular exemplary embodiment, the first void perimeter is the second 85.6% around the void. In the case of a fairway wood-3W golf club head, the first void perimeter can be about 75-85% of the second void perimeter, and in one specific exemplary embodiment, the first void perimeter is the second void perimeter. It is 80.9% of the surrounding. In the case of a fairway wood-5W golf club head, the first void perimeter can be about 75-85% of the second void perimeter, and in one particular exemplary embodiment, the first void perimeter is the second 78.6% around the voids. In the case of a hybrid golf club head, the first void perimeter can be about 80-90% of the second void perimeter, and in one particular exemplary embodiment, the first void perimeter is 87.2 percent of the second void perimeter. %. Further, it will be appreciated that for various golf club heads of the present invention, the first void perimeter can be about 70-90% of the second void perimeter. In the case of the outwardly tapered wall described above, the first void perimeter P1 can be minimized, thereby reducing the crown area defined by the first void perimeter P1. This provides a high mode frequency and reduced amplitude upon ball impact in this area. Perimeter dimensions also result in a smaller sole area. Control of the surrounding dimensions provides structural efficiency and maintains the benefits of voids and stiffening walls. Thus, the overall characteristics of the void configuration are balanced to achieve the desired performance characteristics. It will be appreciated that in other embodiments, the golf club head can be configured such that the first void perimeter P1 is larger than the second void perimeter P2.

  As described above, the structure of the golf club head 200 defines an internal cavity 219 and an air gap 226. It will be appreciated that the golf club head 200 and other golf club head embodiments described herein have volumes associated therewith. Club head volume can be measured using the United States Golf Association and R & A Rules Limited Procedure For Measuring the Clubhead Size of Wood Clubs. In such an approach, the club head volume is measured using the water displacement weight method. It will further be appreciated that according to this approach, void structures and other voids may be filled with clay or soft mass and covered with tape to create a smooth contour on the sole of the club head. The club head volume can also be calculated from three-dimensional modeling of the golf club head, if desired. Furthermore, it will be appreciated that the internal cavity 219 has a volume V1. Furthermore, it will be appreciated that the void 226 may define a volume V2. The volume of the gap 226 is partially defined by the lower surface of the cover and the walls 222a, 224b. A virtual extension above the first and second walls and the arc of the crown defines the upper boundary of the void 226, and such a virtual extension creates a smooth contour on the sole. The volume V2 of the void 226 can be dimensioned to be a constant percentage of the volume V1 of the internal cavity 219. As described above, the position of the boundary area 228 and the angle between the legs 222, 224 can vary. Such changes can affect the volumes V1, V2 of the internal cavity 219 and air gap 226, respectively, which further affect the performance characteristics of the golf club head 200 as desired.

  Table 3 below lists exemplary volume data for various types of golf club heads according to exemplary embodiments of the present invention.

  It will be appreciated that the volume V2 of the void 226 may be within a certain percentage range of the volume V1 of the internal cavity 219. For Driver # 1 golf club head, the void volume can be 20-25% of the internal cavity volume, and in one exemplary embodiment, the void volume is 21.6% of the internal cavity volume. For a driver # 2 golf club head, the void volume can be 15-20% of the internal cavity volume, and in one exemplary embodiment, the void volume is 16.7% of the internal cavity volume. For a Fairway Wood-3W golf club head, the void volume can be 15-20% of the internal cavity volume, and in one exemplary embodiment, the void volume is 19.4% of the internal cavity volume. For a fairway wood-5W golf club head, the void volume can be 15-20% of the internal cavity volume, and in one exemplary embodiment, the void volume is 18.8% of the internal cavity volume. For a hybrid golf club head, the void volume can be 15-20% of the internal cavity volume, and in one exemplary embodiment, the void volume is 17.1% of the internal cavity volume. Further, it will be appreciated that for various golf club heads of the present invention, the void volume may be about 15-25% of the internal cavity volume or, in further embodiments, an additional 15-20% of the internal cavity volume. Each volume is sized to achieve the desired performance characteristics of the golf club.

  As described above, the legs 222, 224 and the walls 222a, 224b extend obliquely from each other. The walls 222a and 224 are tapered outward from the lower surface of the crown to the sole. As such, as shown in FIG. 21, the angle A1 is defined in the lower surface of the crown. Angle A2 is generally defined at the sole. Table 4 below lists exemplary angle A1, A2 data for various types of golf club heads according to exemplary embodiments of the present invention.

  Table 1 contains data on typical lengths for walls and maximum cavity distance, while Table 4 contains data on angles between walls. It will be appreciated that the length and angle can be sized in various relationships to achieve the desired performance characteristics.

  As detailed, in an exemplary embodiment of the invention, the crown of the golf club head generally covers the legs and voids. The crown or cover has a segment 272 (shown schematically in FIG. 4) that faces the air gap 226. This segment has a constant surface area 1. The crown may have a total surface area 2 that may generally include the portion of the hosel area that generally faces the rest of the crown. Table 5 below lists exemplary crown surface area data, area 1, area 2 for various types of golf club heads according to exemplary embodiments of the present invention.

  Thus, the surface area of the crown segment facing the void can be a constant percentage of the total surface area of the crown. For Driver # 1 golf club head, the surface area of the crown over the air gap may be 10-20% of the total surface area of the crown, and in one exemplary embodiment, the surface area of the crown over the air gap is 15.2% of the total surface area of the crown It is. For Driver # 2 golf club heads, the surface area of the crown above the void can also be 10-20% of the total surface area of the crown, and in one exemplary embodiment, the surface area of the crown above the void is equal to the total surface area of the crown. 13.3%. Fairway Wood—For 3W and 5W golf club heads, the surface area of the crown over the void may be 10-20% of the total surface area of the crown, and in one exemplary embodiment, the surface area of the crown over the void is the total surface area of the crown Of 14.2%. In the case of a hybrid golf club head, the surface area of the crown over the void can be 10-20% of the total surface area of the crown, and in one exemplary embodiment, the surface area of the crown over the void is 16.4% of the total surface area of the crown . Further, it will be appreciated that for various golf club heads of the present invention, the surface area of the crown over the air gap may be 10-25% of the total surface area of the crown or an additional 10-20% of the total surface area of the crown.

  Although specific dimensions, characteristics and / or ranges of dimensions and characteristics are described in the several tables above and in other paragraphs of this specification, those skilled in the art are aware that these dimensions and ranges are examples of the invention. You will recognize that. Many variations in range and specific dimensions and characteristics may be used without departing from the invention, for example, depending on the type of club, user preferences, user swing characteristics, and the like. Such data may also vary depending on other desired club parameters and shaft selection. In certain exemplary embodiments, the data described herein can vary in the range of ± 10%. Further, it will be appreciated that additional parameters, relationships, proportions, etc. can be readily determined and recognized by those skilled in the art from the data disclosed herein. In addition, a golf club head structure does not have to have dimensions or characteristics that meet all of the various data values described herein to fall within the scope of the present invention.

  FIG. 31 shows another golf club head of the present invention, designated generally by reference numeral 400. As detailed with respect to other aspects, the golf club head 400 has a body 402 and a cover 404. The body 402 has a first leg 422 and a second leg 424 separated by a gap 426. The void 426 is generally V-shaped as in other embodiments. Golf club head 400 further defines a boundary area 428. The cover 404 is integral with the body 402 or otherwise connected to the body. The first leg 422 and the second leg 424 approach each other toward the boundary area 428. It will be appreciated that the golf club head 400 of FIGS. 31-33 may also have other structures and features detailed herein with respect to other aspects of the club head.

  Golf club head 400 utilizes a weight assembly to further improve club head 400 performance. A weight assembly or weight operably corresponds with the boundary area 428. In the exemplary embodiment, the boundary area 428 of the head 400 supports a receptacle or receiver 442, which in the exemplary embodiment is in the form of a containment tube 442. The weight 440 of the weight assembly is configured to be received by the receiving tube 442. FIG. 31 shows the weight 440 both in the tube 442 and further disassembled. The weight 440 is incorporated into the golf club head 400 in some examples, and in some embodiments is housed in the base of a V-shaped void 426 formed in the golf club head 400. Can be received in tube 442. Therefore, as shown in FIG. 31, the boundary area 428 supports the receiving tube 442 generally at the junction of the first leg 422 and the second leg 424. The first leg 422 and the second leg 424 approach the receiving tube 442. The receiving tube 442 generally has a height that extends from the underside of the cover 404 to near the sole surface of the club head body 402. The containment tube 442 can have different heights as desired, and can be attached such that one or both ends are spaced from the underside or sole of the crown. It will be appreciated that the weight 440 may be heavier at one end 440a than the opposite end 440b and can be inverted if desired. Accordingly, different weighting characteristics and arrangements are possible to change the performance characteristics of the club head 400. It is also possible to provide a threaded fastener 444 for mating with an internal thread in the receiving tube 442 to secure the weight 440 in the receiving tube 442.

  The receiving tube 442 and the weight 440 can have corresponding shapes so that the weight 440 can slide into the receiving tube 442. In some examples, the weight 440 and the receiving tube 442 can be cylindrical, square, rectangular, and the like. The containment tube 442 can have a vertical axis and the weight can have a vertical axis. When the weight 440 is received in the tube 442, the longitudinal axes can generally coincide. In the embodiment shown in FIG. 31, the longitudinal axis of the tube 442 is generally vertical and generally parallel to the ball striking surface with the understanding that the ball striking surface may have a certain amount of loft. The receiving tube 442 may be integrally formed with one or more portions of the golf club head 400, or may be formed as a separate portion and known connection methods such as adhesives, mechanical fasteners, snap-fits. Etc. may be used to connect to the golf club head 400.

  In the example shown in FIG. 31, the containment tube 442 is generally vertical in placement (eg, in the vertical position when the golf club head is in the address position). However, various other tube arrangements, positions, etc. can be used without departing from the invention. Such other arrangements, positions, etc. will be described in more detail below.

  The containment tube 442 may receive a weight 440 that may be a single weighting member or may have ends with different weighting characteristics or weight values. For example, the weight 440 may be heavier at one end 440a than at the opposite end 440b. In some aspects, the heavier end may be positioned proximate to the top of the golf club head to provide a first weight arrangement, or proximate to the bottom of the golf club head. May be arranged to provide a second weight arrangement. Different weight placements can affect the performance of the club head 400. The V-shaped air gap 426 allows easier access to the body of the golf club head 400, weight 440, etc., and can more easily adjust the weight from a high position to a low position. Other structures can be operably associated with the boundary area in the gap 426 to removably support the weight member thereon.

  Additionally or alternatively, the weight member 440 includes a plurality of weights or portions of the weight 440 that may be releasably secured to each other, eg, the three heaviest pieces (eg, shown in phantom in FIG. A). May be included. Different weights may also have different weight values. In some examples, the heavy member can be at the end or center of the member. Various other combinations of weight members may be used without departing from the invention. The overall height of the weight member 440, along with the length of the threaded fastener 444, can generally match the height of the receiving tube 442 so that the weight 440 fits snugly within the tube 442 and does not slip in the tube during use. It has become. It will be appreciated that the tube 442 and / or the weight 440 may have shock absorbing features if desired.

  In some embodiments, the base of the V-shaped gap 426 can have a corner, and the receiving tube 442 can conform to that corner. Accordingly, the weight member 440 can be adjusted in a hybrid manner, for example, high / low, front / rear, by adjusting the weight 440 within the receiving tube 442. Further, the plurality of storage tubes 442 can be used in a vertical, horizontal, or angular arrangement. The containment tube may also be disposed at a location spaced from the boundary area 428 including along the surfaces of the first leg 422 and the second leg 424.

  The placement of the weight 440 and the containment tube 442 at the base of the V-shaped gap 426 may assist in adjusting the center of gravity near the central region of the golf club head 400. Concentrating the weight in tube 442 within tube 442 can provide a low or high center of gravity. The weight 440 may also be configured to provide a more neutral center of gravity. The insertion or removal of the weight 440 can add additional weight or remove additional weight from the total weight of the golf club head 400, and add or remove weight from the central area, thereby Adjust the performance characteristics of the golf club head 400. Such weighting characteristics provided by the weight 440 in the tube 442 can further affect the golf ball trajectory by providing a change in ball spin. It has been found that this weighting feature can provide a change in ball spin of about 500-600 rpm. Utilizing adjustable weights 440 in the tube 442 to influence ball spin and considering the launch angle and ball speed, the golfer can play golf to achieve the desired ball trajectory, distance and other characteristics. The club can be customized. The adjustable weighting feature can further be used to customize the club head 400 to produce the desired ball spin for the particular golf ball used.

  The weight assembly utilized in FIG. 31 can also take several alternative forms. For example, the club head body may be formed such that the first leg and the second leg define a V-shaped gap therebetween. In this embodiment, the air gap extends completely from the club head crown to the club head sole. The side of the leg facing the void, i.e. the wall, may be closed with a material defining the side or the side of the leg may have an open structure. A cover member that is also V-shaped to match the V-shaped gap can be provided. The cover member has a structure that defines a top portion and depending legs and a receiving tube therein. The receiving tube is configured to receive a weight as described above. The cover member is disposed in the V-shaped gap and the top portion of the cover member is attached to the crown of the club head body. The hanging leg of the cover member faces the leg of the club head body and may also be connected to the leg of the club head body. As such, the club head body is formed similarly to the club head shown in FIG. In one exemplary embodiment, the club head body is a cast metal body such as titanium. The cover member is formed by a plastic injection molding method. The plastic cover member reduces the total weight of the club head, as opposed to such a corresponding structure, which is also made from a metal such as titanium. A coating process can also be utilized on the plastic cover member to provide a metallic appearance and to further strengthen the member. Further, it will be appreciated that in various aspects described herein that utilize additional weight members, the weight members may be heavier material than the rest of the golf club head or portion of the head. In other exemplary embodiments, the weight member may be made of the same material as the rest of the golf club head or portion thereof. In certain exemplary embodiments, the weight member may be formed of steel, aluminum, titanium, magnesium, tungsten, graphite or composite materials and alloys and / or combinations thereof.

  32 and 33 show another weight arrangement similar to FIG. Use similar reference numbers to designate similar components. Golf club head 400 may include a club head body 402 that defines a V-shaped gap 426 at the rear of the golf club head. The club head body 400 has a pair of spaced apart legs 422, 424 that define a gap 426 in which the legs 422, 424 approach and a boundary area 428 is defined in the club head body 402. . In addition, the golf club head 400 may include a weight 440 disposed at or near the boundary area or generally the central region of the golf club head (eg, at the base of the V-shaped gap 426). The weight assembly or weight is operably associated with the boundary area. Similar to the arrangement of FIG. 31, the weight can be cylindrical and in an exemplary embodiment can be received in a receiver, such as the containment tube 442.

  Similar to the arrangement described above with respect to FIG. 31, the weight may have ends with different weighting characteristics or weight values. For example, the one end 440a may be heavier than the other end 440b. Further weight may be due to the end 440a being a larger portion of the weight 440 (as shown in FIG. 32), or the material used to form the weight may vary from end to end. . To adjust the weight distribution corresponding to the weight 440, the weight 440 can be removed from the receiving tube 442 and rotated or inverted. That is, the heavier end may be near the upper portion of the receiving tube 422 (eg, near the sole of the golf club head) or the heavier end may be the top or crown of the golf club head 400. The weight 440 may be reversed so as to be close to.

  Additionally or alternatively, the weight can be comprised of multiple weight portions having different weight characteristics, as described above. For example, portions 440a and 440b can be separate portions of weight 440 that can be connected together in multiple configurations to adjust weight distribution and thereby adjust the performance characteristics of golf club head 400. Although two weight portions are shown in FIG. 32, more than two portions may be used to form the weight 440 if desired.

  In some examples, the containment tube 442 may include a fastener 444 for securing the weight 440 within the containment tube 442. For example, a screw or other threaded fastener 444 may be inserted into the receiving tube 442 to maintain the placement of the weight 440 after the weight 440 is inserted. The receiving tube 442 has a mating screw for receiving the threaded fastener 444. To remove or adjust the weight, the weight 440 can be removed after the fastener 444 is removed. Similar to the embodiment described above, access to the weights 440 and fasteners 444 can be made through a void 426 formed in the rear of the golf club head 400. It will be appreciated that in some other alternative embodiments, the weight 440 can be secured within the tube 440.

  Additionally or alternatively, the weight 440 may be screwed or connected to the threaded fastener 450 so that adjustment of the screw moves the weight 440 within the receiving tube 442. For example, rotation of the screwed fastener 450 can cause the fastener 450 to move up and down within the receiving tube 442. Then, the weight 440 connected to the fastener 450 can also move up and down together with the screwed fastener 450. As further shown in FIGS. 32 and 33, the exposed surface of the receiving tube 442 may have a window 460 that allows the weight 440 in the tube 442 to be viewed from outside the club head. The weight 440 may be marked with an indicia to allow easy determination of the particular weighting arrangement provided. The indicia may be provided in a variety of different forms, including but not limited to words and colors or combinations thereof.

  While the above-described aspects, including the containment tube, generally show the exterior of the containment tube, the containment tube may be confined within the rear portion of the golf club head without departing from the invention. For example, a golf club head boundary area may completely enclose a containment tube or other structure for receiving a weight member.

  Further, it will be appreciated that adjustment member 105 may be utilized in an exemplary embodiment of the present invention. The adjustment member 105 is operably connected to the golf club head and can adjust certain parameters of the golf club head, such as loft angle, face angle and / or lie angle. Other parameters can also be adjusted. It will be appreciated that the adjustment member 105 can be utilized in any of the aspects described herein.

  34A-46C disclose one exemplary embodiment of an adjustment member, generally designated by reference numeral 105, utilized with the club head of the present invention. The adjustment member 105 is a member of the hosel base portion that can adjust two parameters such as a loft angle and a face angle. The adjustment member 105 is received in the hosel 104 of the golf club head 200 and cooperates with additional connection structures in the bore 264 (FIG. 8) of the golf club head 200, as will be described in further detail below.

  34A-46C illustrate an adjustment member 105 or releasable connection 104 between a golf club head and a shaft, according to an example of the present invention. In these figures, the golf club head is generally shown schematically, and any of the golf club heads 100, 200, 400 described in FIGS. 1-33 above may be used with the adjustment member 105 described herein. It will be understood that it can be used.

  FIG. 35A shows an exploded view of the adjustment member / releasable connection 105. As shown in FIG. 35A, this releasable connection 105 between the golf club head 200 and the shaft 106 includes a shaft adapter 500, a hosel adapter 600, and a hosel ring 700. In general, hosel ring 700 is configured to engage a club head chamber or bore 264 in golf club head 200, hosel adapter 600 is configured to engage lock ring 700 and golf club head 200, Shaft adapter 500 is configured to engage hosel adapter 600, and shaft 106 is configured to engage shaft adapter 500. Details of the engagement of these exemplary components / parts are described in further detail below.

  The releasable connection 105 includes two different sleeves, a shaft adapter 500 and a hosel adapter 600, as described below. These two different sleeves provide the ability to independently adjust two different club head parameters. In addition, in accordance with an aspect of the present invention, a single sleeve is utilized to eliminate either shaft adapter 500 or hosel adapter 600 without substantially changing other parameters or characteristics of golf club head 200. (Or minimally changing) only one club head parameter may be adjusted independently of other parameters or characteristics. In another aspect, either shaft adapter 500 or hosel adapter 600 may include an off-axis or diagonal bore, and the other of shaft adapter 500 or hosel adapter 600 does not include an off-axis or diagonal bore. May be. In addition, in accordance with aspects of the present invention, two different sleeves 500, 600 may be utilized with off-axis or oblique bores, but they substantially alter other parameters or characteristics of the golf club head. The ability to independently adjust one club head parameter without (or minimally changing) may be provided. In this embodiment, only one club head parameter may be adjusted independently of other parameters or characteristics. For each of these adjustments, whether adjusting two different club head parameters independently or adjusting one club head parameter, changes in other parameters or characteristics of the golf club head are substantially (Or minimal) is not possible.

  In this exemplary embodiment, neither the shaft adapter 500 nor the hosel adapter 600 needs to be removed from the club head 200 in order to rotate the shaft adapter 500 and / or the hosel adapter 600 to various configurations. Shaft adapter 500 and hosel adapter 600 remain confined within releasable connection 105 (see, eg, FIGS. 41A-44). In one exemplary embodiment for achieving this confinement feature, the shaft adapter 500 can include a stop ring 501. Stop ring 501 may be in the form of a compressed O-ring. Without departing from the invention, the stop ring 501 may also be other mechanical features such as a C-clip. This stop ring 501 allows the hosel adapter 600 to be disengaged from the shaft adapter 500 without removing it from the club head 200, thereby rotating the hosel adapter 600 and / or shaft adapter 500 without removing it from the club head 200. It can be moved. Other ways may be envisaged that do not utilize a confinement feature that may require the shaft adapter 500 and / or hosel adapter 600 to be removed from the club head 102 to pivot and / or change the club head 200 configuration. .

  35A and 35B show an exploded view of the releasable connection 105. FIG. In general, the hosel ring 700 is configured to engage a club head bore 264 in the golf club head 200, and the hosel adapter 600 is configured to engage the hosel ring 700 and the golf club head 200, and a shaft adapter. 500 is configured to engage hosel adapter 600 and shaft 106 is configured to engage shaft adapter 500. Details of the engagement of these exemplary components / parts are described in further detail below.

  As shown in FIGS. 36A-36D, the shaft adapter 500 includes a generally cylindrical body 502 having a first end 504 and an opposite second end 506. The first end 504 defines an opening into the cylindrical inner chamber 508 for receiving the end of the golf club shaft 106. Second end 506 includes a locking structure (eg, screw hole 510 in this exemplary structure) that assists in securely engaging shaft adapter 500 with club head body 202, as will be described in further detail below. . In addition, the second end 506 includes a stop ring 505. Stop ring 505 may extend radially from second end 506 of shaft adapter 500. The stop ring 505 can stop and hold the hosel adapter 600 engaged with the shaft adapter 500, thereby adjusting and rotating the hosel adapter 600 and / or the shaft adapter 500 without removing them from the golf club head 200. Can forgive. Stop ring 505 may be integral with shaft adapter 500, i.e. formed as part of shaft adapter 500 to extend radially from second end 506 of shaft adapter 500, and / or It may be a part of the shaft adapter 500. In addition, the stop ring 505 may be a separate compression O-ring that fits into a channel 507 that extends radially around the second end 506 of the shaft adapter 500. The separate stop ring 505 (compressed O-ring) can be rubber or metal material.

  As shown, at least a portion of the first end 504 of the shaft adapter 500 includes a first rotation blocking structure 512. In this exemplary structure, the rotation blocking structure 512 includes a spline 512a extending along a portion of the longitudinal axis 526 of the outer surface of the shaft adapter 500, although various rotation blocking structures may be provided without departing from the invention. Configure. Spline 512a of shaft adapter 500 may prevent rotation of shaft adapter 500 relative to a member (eg, a hosel adapter, as will be described in further detail below) into which the shaft adapter is fitted. Various rotation blocking structures may be used without departing from the present invention. The interaction between these splines and the cylindrical interior of the hosel adapter will be further described below. Other spline arrangements may be utilized without departing from the present invention.

  The first rotation prevention structure 512 disengages the hosel adapter 600 from the first rotation prevention structure 512 so that the shaft adapter 500 can be rotated even when captured on the shaft adapter 500. Can extend along the length of

  FIGS. 36A and 36B further illustrate that the first end 504 of the shaft adapter 200 includes an enlarged portion 514. The enlarged portion 514 provides a stop that prevents the shaft adapter 500 from extending into the hosel adapter 600 and the club head body 202, and is a strong anchor for securing the shaft adapter 500 to the hosel adapter 600 and club head body 202. Provide a base. Also, the outer shape of the first end 504 may be tapered to provide a smooth transition between the shaft 106, the hosel adapter 600 and the golf club head 200 and a conventional aesthetic appearance.

  Other features of this exemplary shaft adapter 500 may include an “off-axis” or slanted borehole or internal chamber 508 in which the shaft 106 is received, for example as shown in FIG. 36C. More specifically, in the illustrated example, the cylindrical outer surface of shaft adapter 500 extends in a first axial direction, and the cylindrical inner surface of borehole 508 has a second axial direction that is different from the first axial direction. To form a shaft adapter offset angle. In this way, the exterior of the shaft adapter 500 maintains a constant axial orientation that matches the interior of the hosel adapter 600 and the axial direction of the opening, while the shaft 106 is coupled to the club head 200 from the club head 200 and hosel adapter 600. The hosel adapter 600 and the club head 200 striking face 208 extend away at different and adjustable angles. In this given example, the shaft position and / or angle corresponds to a given face angle of the golf club head 200. One pivot position can be a neutral face, one pivot position can be an open face, and one pivot position can be a closed face. Other rotational positions may be utilized without departing from the present invention. The shaft position and / or face angle can be adjusted, for example, by rotating the shaft adapter 500 relative to the hosel adapter 600 and the club head hosel 104.

  According to some examples of the present invention, any desired shaft adapter offset angle may be maintained between the first and second axial directions, but this shaft adapter offset angle or face angle adjustment may be , Between 0.25 degrees and 10 degrees, in some examples between 0.5 degrees and 8 degrees, between 0.75 degrees and 6 degrees, or even between 1 degree and 4 degrees. In a more specific example of the present invention, the shaft adapter offset angle or face angle adjustment may be offset by about 1.5 degrees or 2.0 degrees.

  37A-37E show an exemplary hosel adapter 600 of the present invention. As shown, the hosel adapter 600 is generally cylindrical. The hosel adapter 600 has a first end 604 and an opposite second end 606. First end 604 defines an opening to bore hole 608 for receiving shaft adapter 500. Within the first end 604 and along the inner surface of the borehole 608, the first end 604 engages a first rotation blocking structure 512 on the shaft adapter 500 (eg, in a manner that is coupled to rotation). A second rotation blocking structure 612 configured as described above.

  As shown in FIG. 37C, at least a portion of the interior of the first end 604 of the hosel adapter 600 includes a second rotation blocking structure 612. In this exemplary structure, the second anti-rotation structure 612 comprises a spline 612a that extends along the internal longitudinal axis, although various anti-rotation structures may be provided without departing from the invention. The spline 612a of the hosel adapter 600 may prevent rotation of the shaft adapter 500 relative to the hosel adapter 600 into which the shaft adapter is fitted (and ultimately relative to the golf club head). The spline 612a of the hosel adapter 600 and the spline 512a of the shaft adapter 500 can be configured to interact with each other, thereby limiting the number of pivoting steps of the shaft adapter 500 within the hosel adapter 600. This will be further described below.

  Other features of this exemplary hosel adapter 600 may include an “off-axis” or oblique borehole or interior chamber 608 in which the shaft adapter 200 is received, for example as shown in FIG. 37C. More specifically, in the illustrated example, the cylindrical outer surface of hosel adapter 600 extends in a first axial direction, and the cylindrical inner surface of borehole 308 has a second axial direction that is different from the first axial direction. To form a hosel adapter offset angle. In this way, the exterior of the hosel adapter 600 maintains a constant axial orientation that matches the interior of the club head chamber or bore 264 and hosel ring 700 and the axial direction of the opening, but the shaft adapter 500 (and thus the shaft 106) , Extending away from the club head 200 at different and adjustable angles with respect to the club head 200, hosel adapter 600 and ball striking face 208 of the golf club head 200. In this given example, the shaft position and / or angle corresponds to a given loft angle. The pivot position of the loft angle may be defined by a loft angle starting from about 7.5 degrees and up to 12.5 degrees. Similar arrangements of lower and higher loft angles may be utilized without departing from the invention. Club head position and / or loft angle may be adjusted, for example, by rotating hosel adapter 600 relative to hosel ring 700 and club head 200.

  According to some examples of the present invention, any desired hosel adapter offset angle may be maintained between the first and second axial directions, but this hosel adapter offset angle or face angle adjustment may be , Between 0.25 degrees and 10 degrees, in some examples between 0.5 degrees and 8 degrees, between 0.75 degrees and 6 degrees, or even between 1 degree and 4 degrees. In a more specific example of the present invention, the hosel adapter offset angle or face angle adjustment may be offset by about 1 degree or 0.5 degree.

  The second end 606 of the hosel adapter 600 defines a second opening 610 for receiving the securing member 808. In general, the second opening 610 is sized so that the securing member 808 can freely pass through the second opening 610 and engage the threaded hole 510 in the shaft adapter 500. Or, if desired, the securing member 808 may also engage the hosel adapter 600 at the second opening 610 (eg, a screw with which the second opening 610 engages a screw provided on the securing member 808). May be included). The fixation member 808 can also include a spherical washer 808A and a screw retainer 408B.

  As shown in FIG. 38B, the spherical washer 808A may have a convex surface 830 on the side of the screw bolt member 808 that fits or engages with the head. In addition, the head of the screw bolt member 808 can have a concave surface 832 that mates with the convex surface 830 of the spherical washer 808A. This uneven surface 830-832 fit assists in the pivoting that the off-axis sleeve can cause with respect to the remainder of the threaded bolt member 808 and releasable connection 105 and allows misalignment therefrom.

  As shown in FIG. 35A, the fixation system may also include a screw retention device 808B. A screw retainer 808B may be located in the club head chamber 264. In addition, the screw retention device 808B can be sized such that the screw retention device is larger than the mounting plate 810 disposed in the bore 264. The screw holding device 808B holds the screw bolt member 808 and does not allow the screw bolt member 808 to fall out of the club head 200.

  The hosel adapter 600 may also be non-rotatable with respect to the golf club head 200. As shown in FIGS. 37A and 37B, the exterior of the first end 604 along the outer surface 602 of the hosel adapter 300 engages a fourth rotation blocking structure 712 on the hosel ring 700 (eg, against rotation). A third anti-rotation structure 622 configured in a connected manner. As shown, at least a portion of the first end 604 of the hosel adapter 600 includes a third anti-rotation structure 622 on the outer surface 602 of the hosel adapter 600. In this exemplary structure, the rotation blocking structure 622 constitutes a spline 622a that extends along the longitudinal axis of the outer surface of the hosel adapter 600, although various rotation blocking structures may be provided without departing from the invention. Splines 622a on the outer surface of hosel adapter 600 may prevent rotation of hosel adapter 600 relative to a member (eg, a club head or hosel ring 700, as will be described in more detail below) into which the hosel adapter is fitted. The third rotation blocking structure 622 can extend along the entire longitudinal length of the hosel adapter 600.

  FIGS. 37A and 37B further illustrate that the first end 604 of the hosel adapter 600 includes an enlarged portion 618. The enlarged portion 618 provides a stop that prevents the hosel adapter 600 from extending into the club head body 202 and provides a solid base for securing the hosel adapter 600 to the club head body 202. Also, the outer shape of the first end 604 can be tapered to provide a smooth transition between the shaft 106 and the club head 200 and a conventional aesthetic appearance.

  Without departing from the invention, hosel adapter 600 may be made from any desired material and any desired number of independent parts. In this illustrated example, the entire hosel adapter 600 is made from a conventional material such as a metal or metal alloy, plastic, etc., as a one-piece structure. In at least some exemplary structures of the present invention, hosel adapter 600 is made from titanium, aluminum, magnesium, steel or other metal or metal alloy material. In addition, the hosel adapter 600 may be made from self-reinforced polypropylene (SRP), such as PrimoSpire® SRP. Without departing from the present invention, bores and / or surface structures (eg, spline 612a, spline 622a and enlarged portion 618) are generally known and / or used in manufacturing methods such as drilling. Can be produced into the material in any desired manner, including tapping, machining, turning, extrusion, grinding, casting, molding, and the like. The shaft adapter 500 and hosel adapter 600 and any other parts may be any combination of metal or plastic or other suitable material. For example, hosel adapter 600 may be a high strength plastic while shaft adapter 500 is made of metal. Other combinations may be utilized without departing from the invention.

  An exemplary hosel ring 700 is shown in FIGS. 35A and 35B. As shown, the hosel ring 700 is generally cylindrical. Along the inside of the borehole 708, the hosel ring 700 is configured to engage with a third anti-rotation structure 622 on the hosel adapter 600 (eg, in a connected manner with respect to rotation). Four rotation blocking structures 712 are included. At least a portion of the interior of the hosel ring 700 includes a fourth rotation blocking structure 712. In this exemplary structure, the fourth anti-rotation structure 712 comprises a spline 712a extending along the internal longitudinal axis, although various anti-rotation structures may be provided without departing from the invention. The spline 712a of the hosel ring 700 can prevent the hosel adapter 600 from rotating with respect to the club head 200 in which the hosel adapter is fitted. The spline 712a of the hosel ring 700 and the external spline 622a of the hosel adapter 600 can be configured to interact with each other, thereby limiting the number of stages of rotation of the hosel adapter 600 within the hosel ring 700. This interaction is further described below.

  The hosel ring 700 may also be non-rotatable with respect to the golf club head 200. In exemplary embodiments, hosel ring 700 may be any means known and / or used in the art, such as adhesive, glue, epoxy resin, cement, welding, brazing, soldering or other It may be fixed to the club head chamber 264 by a fusion technique or the like. FIG. 35A shows the hosel ring 700 secured to the club head 200 in the club head chamber 264. In addition, hosel ring 700 may be an integral part of club head 200, in which case hosel ring 700 may be molded into club head chamber 264.

  Without departing from the invention, hosel ring 700 may be made from any desired material and any desired number of independent parts. In the illustrated example, the entire hosel ring 700 is made from a conventional material such as a metal or metal alloy, plastic, etc., as a one-piece structure. In at least some exemplary structures of the present invention, hosel ring 700 is made from titanium, aluminum, magnesium, steel, or other metal or metal alloy material. Without departing from the invention, bores and / or surface structures (eg, spline 712a) are generally known and / or used in the art, such as drilling, tapping, machining, lathes. It can be manufactured into the material in any desired manner, including processing, extrusion, grinding, casting, molding, and the like.

  38A-40 show an adjustment member / releasable connection 105 showing all components mated together. In addition, as shown in FIGS. 35A, 35B, 38A, 39 and 40, the adjustment member / releasable connection 105 may also include a shaft ring 107. The shaft ring 107 may provide a smooth transition from the shaft 106 to the shaft adapter 500.

  In the following, with reference to FIG. 35A, the adjustment of the rotational position of the shaft adapter 500 (and its attached shaft 106) and the hosel adapter 600 will be described in more detail. Changing the rotational position of the shaft adapter 200 relative to the hosel adapter 600 may adjust one or more of various parameters throughout the golf club, such as loft angle, face angle, or lie angle. In the exemplary embodiment as shown in FIGS. 35A-40, changing the pivot position of the shaft adapter 200 relative to the hosel adapter 600 can adjust the face angle. Other parameters of the club head 200, such as inset distance, offset distance, fade bias, draw bias, etc. may be designed to be adjustable. In addition, changing the rotational position of the hosel adapter 600 relative to the hosel ring 700 and club head 200 may adjust one or more of various parameters throughout the golf club. In the exemplary embodiment shown in FIGS. 35A-40, changing the rotational position of the hosel adapter 600 relative to the hosel ring 700 and club head 200 may adjust the loft angle. In these particular embodiments, shaft adapter 500 and hosel adapter 600 have independent off-axis bores that allow them to independently adjust the face angle (shaft adapter 500) and loft angle (hosel adapter 600). Have.

  To allow the user to easily identify the “setting” of the club head 200 (eg, the position and / or orientation of the club head body 202 relative to the shaft 106), the shaft 106, shaft adapter 500, hosel adapter 600 and Any or all of the club heads 200 may include markings or indicators or other indicia. 36A and 36B show an indicator 520 on the shaft adapter 500 (eg, on the enlarged portion 514). 37A and 37B show an indicator 620 on the hosel adapter 300 (eg, on the enlarged portion 318). By looking at the relative positions of the various indicators, a club fitter or other user can easily determine and know the position of the shaft 106 relative to the club head body 202 and its ball striking face 208. If desired, the indicator (eg, indicator 520 or 620) may correspond to and / or include specific quantitative information, such as specifically specified loft and face angles.

  Golf club adjustable designs generally included mating parts and cooperating engagement surfaces that allow for specific adjustability of the golf club head 200. However, these present designs provide many possible adjustable combinations with respect to loft angle, face angle and lie angle. Although this adjustability provides some benefits to the golfer, many options for the golfer can also confuse the golfer and be cumbersome for the golfer. In certain exemplary aspects, the present design, particularly the spline arrangement of the various anti-rotation structures, provides a limited set of adjustable options that are easier to use for golfers. For example, the adjustability may be limited to only three different adjustable loft angles and three different adjustable face angles. Loft angles can vary from 7.5 degrees to 12.5 degrees. Face angles can generally be referred to as neutral, open and closed. Thus, each club head has a limited number of pivotable positions, for example, a total of nine different face angle and loft angle arrangements. The rotation blocking arrangement arrangement limits the pivot position of the shaft adapter 500 and hosel adapter 600 to provide a simpler and more efficient adjustment feature for the golfer. Thus, from the drawings and descriptions herein, various spline arrangements allow specific positions to provide the desired adjustments, but additional positions prevent restricting the adjustability options specifically. Having an engagement surface that is structured such that each spline cannot fit together. Accordingly, the respective spline configurations of shaft adapter 500, hosel adapter 600, and hosel ring 700 define surfaces that prevent cooperative mating and engagement between components.

  Another exemplary set of options uses four different adjustable loft angles and three different adjustable face angles, thereby creating a club head having a total of 12 different face angles and loft angle arrangements It is to be. Another exemplary set of options uses five different adjustable loft angles and three different adjustable face angles, thereby creating a club head having a total of 15 different face angle and loft angle arrangements It is to be. Another exemplary set of options uses seven different adjustable loft angles and three different adjustable face angles, thereby creating a club head with a total of 21 different face angles and loft angle configurations It is to be. Other arrangements of adjustable face and loft angles may be utilized without departing from the invention. It will be appreciated that each spline arrangement may be modified to provide such a different arrangement detailed.

  The exemplary embodiment of FIGS. 41A and 41B shows a spline configuration that allows adjustability of five loft angles and three face angles. Adjustable loft angles may include 8 degrees, 9 degrees, 10 degrees, 11 degrees and 12 degrees. 45A-45E illustrate an exemplary loft angle 150 for this given club head, eg, the golf club head 200 shown in FIGS. 1-21. Adjustable face angles may include open (“O”), neutral (“N”), and closed (“C”). 32A-32C illustrate an exemplary face angle 160 for this given club head. The exemplary embodiment of FIG. 44 shows a spline arrangement that allows adjustability of five loft angles and three face angles. This spline configuration allows for adjustable loft angles that can include 8.5 degrees, 9.5 degrees, 10.5 degrees, 11.5 degrees and 12.5 degrees. Adjustable face angles may include open or left (“L”), neutral (“N”) and closed or right (“R”). The exemplary embodiment of FIG. 29 shows a spline arrangement with seven loft angles and three face angle adjustability. This spline configuration includes adjustable loft angles that may include 8 degrees, 9 degrees, 9.5 degrees, 10 degrees, 10.5 degrees, 11 degrees and 12 degrees (not shown). Adjustable face angles may include open (“O”), neutral (“N”), and closed (“C”). Figures 28A-30 illustrate other exemplary embodiments of adjustability options without departing from the invention.

  It will be appreciated that the “neutral” face angle is the reference point / reference face angle and may not be the actual “neutral” face angle of the face or club head. For example, “neutral” may represent a face angle of 1 degree close of the face. When using a 2 degree face angle adjustment, “closed” will have a 3 degree closed face and “open” will have a 1 degree open face. In another example, “neutral” may represent a face angle of 3 degrees open. When using a 2 degree face angle adjustment, “closed” will have a 1 degree open face and “open” will have a 5 degree open face.

  Next, to illustrate how the present invention provides and limits the rotation of shaft adapter 500 and hosel adapter 600 as described above and adjustable face and loft angle positions, FIGS. The spline arrangement form of the aspect shown in 40 will be described. The embodiment of FIGS. 35A-40 shows a 3 loft angle and 3 face angle adjustable spline configuration. The internal spline 612a of the hosel adapter 600 and the spline 512a of the shaft adapter 500 engage each other, thereby limiting the number of pivoting steps of the shaft adapter 500 within the hosel adapter 600, while the golf club head 200 A specific number of arrangements may be configured thereby to be determined. In addition, the hosel ring 700 spline and the hosel adapter 600 external spline 622 may also be configured to engage each other thereby limiting the number of pivoting steps of the hosel adapter 600 within the hosel ring 700. For example, the spline arrangement of the hosel ring 700 and the external spline 622 of the hosel adapter 600 can be limited to pivot to three different pivot positions (eg, three different loft angles). In other aspects, the spline arrangement of shaft adapter 500 and hosel adapter 600 provides and limits rotation of shaft adapter 500 and hosel adapter 600 with respect to other additional adjustable face and loft angle positions.

  Accordingly, the adjustment member 105 allows adjustment of parameters such as loft angle and face angle in an exemplary embodiment of the invention. Such club head parameter adjustment affects the overall placement of the golf club head relative to the golf club shaft 106, for example. 34A-34C show how the adjustment member 105 can be manipulated to adjust the loft angle and face angle. The adjustment member 105 may be loosened in the club head and can be tightened again in the club head after turning the shaft adapter and hosel adapter to the desired setting. FIGS. 34A-34C show the adjustment member 105 removed from the hosel for adjustment, but the adjustment member 105 can be loosened while still connected to the club head in the bore, yet the shaft adapter and hosel adapter It will be appreciated that it is possible to adjust the setting by turning. Such adjustments can also be used, for example, when a golfer addresses a golf ball in preparation for a golf shot, or when a golf club is “landed”, for example, when a golfer hits a golf ball in preparation for hitting the golf ball. When placed on the ground, it can affect the golf club position. Therefore, depending on the arrangement of the golf club head based on the selected position of the adjusting member, the method by which the golf club reaches the ground can be affected. As described above, FIG. 18 shows that the sole surface of the golf club head 200 has an unbroken area 320. The uninterrupted area 320 minimizes any impact on the adjustment through the adjustment member 105 when the golfer grounds the golf club head at the address. For example, if the sole 214 has a surface break at a particular location, a particular adjustment through the adjustment member 105 can affect the way the golf club head is positioned at the address. The uninterrupted surface of the sole 214 reduces or eliminates any such effects. Accordingly, the uninterrupted area 320 cooperates with the adjustment member 105 such that the golf club head reaches the ground in response to the configuration set by the golfer via the adjustment member 105. By minimizing or eliminating the impact of the adjustment member on ground contact, the golfer can improve the ability to hit the golf club against the golf ball at the time of addressing.

  Several different aspects of the golf club head of the present invention have been described herein. The various aspects have several different features and structures that exhibit advantages and improved performance characteristics. It will be appreciated that any of a variety of features and structures can be combined to form a particular club head of the present invention. It will be appreciated that the various types of golf club heads disclosed in the present invention can be grouped together based on certain parameters and can be provided as a kit or set of clubs.

  The golf club head structure disclosed herein provides several advantages. The unique geometry of the golf club head provides a beneficial change in the mass characteristics of the golf club head. Geometric weighting features provide reduced weights and / or improved weight distribution. The air gap defined in the club head can reduce the overall weight because the material is removed from a conventional golf club head in which the air gap is defined instead of the material that would normally be present. The air gap also helps to distribute the weight across the club head to provide improved performance characteristics. The air gap distributes weight to the rear corners of the club head on the toe and heel. Increased moment of inertia was achieved while optimizing the location of the club head's center of gravity. Accordingly, it is possible to obtain a golf club head having a higher tolerance and a golf club head capable of giving a golf shot with a loft more easily. In certain exemplary embodiments, the weight for the portion of the golf club head removed to form the void can be about 4-15 grams, more specifically 8-9 grams. In other exemplary embodiments, this reduced weight can be redistributed to other areas of the club head, such as toward the rear in the toe and heel. In certain exemplary embodiments, about 2% to 7.5% of the weight is reallocated from the more traditional golf club head design. In yet a further example, the air gap may have a volume defined by an imaginary plane extending from the sole surface and rear of the club and may be considered to cooperate with the side of the leg and the lower portion of the cover. The internal cavity can also have a specific volume. These volumes are sized to affect the desired performance characteristics. It will be further appreciated that certain portions of the club head may be formed from alternative materials to provide weight savings or other weight redistribution. In one exemplary embodiment, the walls defining the voids can be made from other materials such as composites or polymer-based materials.

As will be described, weights can be redistributed to more desirable club head locations for improved performance. For example, in a centrally located gap and legs that extend outwardly toward the heel side and toe side rear, more weight is located in such areas. This gives a more desirable moment of inertia characteristic. In the design described herein, the moment of inertia (MOI) (Izz) about the longitudinal axis (z axis) through the center of gravity of the club head is about 1500 gm · cm ^{2 to} 5900 gm · It may be in the range of cm ^2. In an exemplary embodiment of a driver type golf club, the moment of inertia (Izz) about the longitudinal axis (z axis) through the center of gravity of the club head can range from about 3800 gm · cm ^{2 to} 5900 gm · cm ² , further exemplary In an embodiment, the Izz moment of inertia can range from 4300 gm · cm ^{2 to} 5200 gm · cm ² . In an exemplary embodiment of the fairway wood type golf club may be a moment of inertia (Izz) in the range of about 2000gm · cm ² ~3500gm · cm ² around the vertical axis through the center of gravity of the club head (z-axis), a further exemplary In a specific embodiment, the Izz moment of inertia can range from 2200 gm · cm ^{2 to} 3000 gm · cm ² . In an exemplary embodiment of the hybrid type golf clubs, it can be a moment of inertia (Izz) in the range of about 2000gm · cm ² ~3500gm · cm ² around the vertical axis through the center of gravity of the club head (z-axis), a further exemplary In embodiments, the Izz moment of inertia can range from 2200 gm · cm ^{2 to} 3000 gm · cm ² , and in further exemplary embodiments, the Izz moment of inertia can range from 1800 gm · cm ^{2 to} 2800 gm · cm ² . In certain embodiments utilizing an adjustable connection mechanism in the hosel, the Izz moment of inertia is between about 4400 gm · cm ^{2 and} 4700 gm · cm ² . These values can vary. With such moment of inertia characteristics, an improved ball distance can be realized at the center hit. Also, with such moment of inertia characteristics, the club head exhibits additional resistance to twisting during off-center hits, the distance lost is shortened, and ball variations are still reduced. Thus, a more tolerant club head design is realized. As a result, the golfer can be more confident in increasing the swing speed of the golf club.

  Furthermore, the center of gravity of the club head is placed where performance is improved. In the structure of the exemplary embodiment of a golf club head, the center of gravity is located outside the location of the club head gap and inside the club head internal cavity or volume. In certain exemplary embodiments, the center of gravity is located between the inner surface of the ball striking surface and the inner surface of the base support wall, or within the internal cavity.

  Furthermore, the golf club head geometry and structure provides improved acoustic properties. For example, in the crown, geometric weighting feature and internal support member construction as described above in FIGS. 29-44, the first natural frequency of the golf club head other than the six rigid body modes of the golf club head is 2750-3200 Hz. It was identified to be in the range. In a further exemplary embodiment, the first natural frequency of the golf club head is at least 3000 Hz. It has been found that golf club head structures that provide such frequencies below 2500 Hz tend to be uncomfortable to the user by providing an undesirable feel that includes sound and / or tactical feedback. The structure provided herein provides increased frequency at a more desirable level.

  Furthermore, the movable weight mechanism used herein provides further adjustability of moment of inertia characteristics and center of gravity characteristics by providing additional options for distributing weights. For example, embodiments described herein that provide a weight that is further movable toward the rear of the club head at the heel and toe can more easily provide a lofted golf shot. Further, by moving the weight further toward the front part of the club head, it is possible to give a more shot of a ball, for example, a shot desired under a relatively strong wind condition. Also, in certain embodiments, the weight can be placed closer to the golf club head crown or sole. Such movable weighting features provide further customization. Finally, various adjustable connection mechanisms can be used in the club head to provide club head adjustability with respect to face angle, loft angle and / or lie angle. Such adjustable connection mechanisms are further disclosed, for example, in US patent application Ser. No. 13 / 593,058, which applications are incorporated herein by reference. Other adjustable mechanisms may be used. A further aspect utilizing the adjustable connection mechanism described above allows a golfer to adjust a golf club parameter, such as a golf club loft angle. Certain golfers desire a relatively low loft angle setting such as but not limited to 7.5 degrees, 8 degrees or 8.5 degrees, or even 9 degrees. Such a low loft angle setting can provide a relatively low ball spin upon ball collision. In order to place a relatively heavy weight low toward the sole of the golf club head, for example, a movable weight mechanism shown in FIGS. 31 to 33 may be used. This weighting configuration can provide increased ball spin at low loft angle settings. Certain other golfers may desire a relatively high loft setting such as but not limited to 11 degrees, 11.5 degrees, 12 degrees, or 12.5 degrees. Such a high loft angle setting can provide a relatively high ball spin upon ball collision. In order to place a relatively heavy weight higher toward the top of the golf club head, a movable weight mechanism may be utilized. This weighting configuration can provide reduced ball spin at high loft angle settings. Additional movable weight mechanisms may provide a combination of elevation and front and back weighting configurations to affect performance characteristics and provide specific desired launch conditions at specific loft angle settings.

  As described above, the golf club head 200 has a continuous area 320 that is strategically located. The surface of the discontinuous area of the surface break, which is a void, allows the golfer to be directed consistently to the golf club corresponding to the golf club head structure selected by the golfer via the adjustment member 105.

  Thus, while the basic novel features of the various aspects have been shown, described and pointed out, those skilled in the art will recognize that the forms and details of the apparatus illustrated and various omissions, substitutions and modifications of their operation are within the scope of the invention. It will be understood that this can be done without departing from the spirit and scope. For example, it is expressly intended that all combinations of elements and / or steps that perform substantially the same function in substantially the same way to achieve the same result are within the scope of the invention. . Substitution of elements from one described embodiment to another is also fully contemplated and contemplated. Accordingly, it is intended that the scope of the claims appended hereto be limited only by the instructions.

Claims (31)

  A body defining a ball striking surface, a crown and a sole, the body further comprising a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, A gap is defined between the leg and the second leg, the crown extends over the gap, and the gap defines a first circumference proximate the lower surface of the crown; A golf club head, wherein the void defines a second circumference proximate to the sole, the second circumference being different in length from the first circumference.   The golf club head of claim 1, wherein the second circumference is greater than the first circumference.   A first leg defines a first wall, the first wall extends between the crown and the sole, and the first wall is slanted from a lower surface of the crown toward the sole. 2. The golf club head according to claim 1, which extends.   A second leg defines a second wall, the second wall extends between the crown and the sole, and the second wall is inclined from the lower surface of the crown toward the sole. 2. The golf club head according to claim 1, which extends.   A first leg defines a first wall, the first wall extends between the crown and the sole, and the first wall is slanted from a lower surface of the crown toward the sole. And the second leg defines a second wall, the second wall extends between the crown and the sole, and the second wall extends from the lower surface of the crown to the sole. 2. The golf club head according to claim 1, which extends obliquely toward the same.   The golf club head of claim 1, wherein the first circumference ranges from about 100 mm to 186 mm.   The golf club head of claim 1, wherein the second circumference ranges from about 114 mm to 218 mm.   The golf club head of claim 1, wherein the first perimeter is in the range of 80% to 90% of the second perimeter.   The first leg defines a first wall, the second leg defines a second wall, and the first and second walls extend obliquely from the lower surface of the crown; 2. The golf club head according to claim 1.   The first leg defines a first wall, the second leg defines a second wall, the first wall extending away from the lower surface toward the heel of the body, 2. The golf club head of claim 1, wherein the second wall extends away from the lower surface and toward the toe of the body.   The body further defines an internal cavity, and the first leg has a first wall extending between the crown and the sole, the first wall having a first inner surface facing the internal cavity and A first outer surface facing the air gap, a second wall having a second wall extending between the crown and the sole, the second wall facing the inner cavity; 2. The golf club head according to claim 1, having a second inner surface and a second outer surface facing the gap.   The body further defines a bore that receives an adjustment member capable of adjusting a parameter of the golf club head, and the sole defines a path surface disposed generally adjacent to the bore, the path surface defining the break. 2. The golf club head according to claim 1, which does not have.   The golf club head of claim 1, wherein the crown extends over the first leg and the second leg.   The golf club head of claim 1, wherein the crown is dimensioned such that no air gap is visible at the address location.   The golf club head of claim 1, wherein the air gap is visible from below the club head.   2. The golf club head according to claim 1, wherein the body is an integral piece.   2. The golf club head of claim 1, wherein the crown completely covers the first leg, the second leg, and the gap.   The golf club head of claim 1, wherein the crown defines a rear portion of the club head having an outermost periphery of the club head.   The golf club head of claim 1, wherein the air gap is generally V-shaped.   The body defines a rear portion and a boundary area proximate to the central region of the body, and the void has a first width proximate the boundary area and a second width proximate the rear; 2. The golf club head according to claim 1, wherein a second width is larger than the first width.   21. A golf club head according to claim 20, wherein the first leg and the second leg approach each other in a boundary face area of the body.   2. The golf club head according to claim 1, wherein the first leg portion and the second leg portion depend from the crown.   The club head defines a depth dimension, the body defines a boundary area proximate to the central region of the body, and the boundary area is in the range of 30% to 60% of the depth dimension as measured from the ball striking surface. 2. The golf club head according to claim 1, wherein the golf club head is arranged.   The golf club head of claim 1, further comprising a shaft coupled to the golf club head to form a golf club.   The golf club head of claim 1, wherein the body defines an internal cavity, and the center of gravity of the club head is disposed within the internal cavity of the club head.   A body defining a boundary area proximate to a central region of the body, a first leg defining a first outer surface, a second leg defining a second outer surface, And the second outer surface has a height proximate to the boundary area that is greater than a height at a distal end of each of the first outer surface and the second outer surface. The golf club head according to 1.   A body defining a ball striking surface, a crown and a sole, the body further comprising a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, A gap is defined between the leg of the first leg and the second leg, the crown extends over the gap, the body further defines an internal cavity, and the first leg is coupled to the crown. A first wall extending between the sole and the first wall, the first wall having a first inner surface facing the inner cavity and a first outer surface facing the air gap; A leg has a second wall extending between the crown and the sole, the second wall having a second inner surface facing the inner cavity and a second outer surface facing the gap. Having a golf club head.   The void defines a first circumference proximate to the lower surface of the crown, and the void defines a second circumference proximate the sole, the second circumference being greater than the first circumference; 28. A golf club head according to claim 27.   A body defining a ball striking face, a crown and a sole, the body further defining a void and an internal cavity therein, the body further defining a wall extending from the crown to the sole, the wall comprising: A golf club head having an inner surface facing the inner cavity and an outer surface defining a portion of the exterior of the golf club head.   A body defining a ball striking surface, a crown and a sole, the body further comprising a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, A bore is defined between the second leg and the second leg, the crown extends over the gap, and the body has a bore for receiving an adjustment member capable of adjusting the parameters of the golf club head. A golf club head further defined, wherein the sole defines a path surface located generally adjacent to the bore, the path surface having no breaks.   A body defining a ball striking surface, a crown and a sole, the body further comprising a first leg extending away from the ball striking surface and a second leg extending away from the ball striking surface, A bore is defined between the second leg and the second leg, the crown extends over the gap, and the body has a bore for receiving an adjustment member capable of adjusting the parameters of the golf club head. A golf club head further defined and wherein the sole defines an uninterrupted surface located generally adjacent to the bore.

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