JP3217059U - Iron golf club with badge - Google Patents

Abstract

Provided is a golf club head with a multi-level badge that not only improves the overall aesthetics of the golf club head but also improves the damping characteristics of an iron-type golf club.
The golf club head is an iron-type golf club head having a multi-level badge 604 that contacts a back surface of a striking face 601 at one level 612 that includes a thin badge of polymer material 620, the multi-level badge It contacts the back of the cavity formed by the club head chassis 602. The gap formed between the striking face of the golf club head and the back of the chassis is filled with a fluid having a temperature variable viscosity that provides vibration damping.
[Selection] Figure 6

Description

  This invention relates generally to iron golf clubs with badges. More specifically, the present invention discloses an iron type golf club head having a badge positioned near the back portion of the iron type golf club head that supports the golf club head. This iron type golf club head back badge generally has a multi-level badge that creates multiple different depths so that the insert not only contacts the back outer surface of the golf club head but also the striking face Allows to touch the back of the. This multi-level badge not only improves the overall aesthetics of the golf club head, but also improves the damping characteristics of iron-type golf clubs.

  Golf games often involve the use of a wide variety of equipment. Generally speaking, a golfer may have several different types of clubs in three main categories: wood, iron, and putter. Although every golfer may have different types of golf clubs in their bags, most people will say that iron-type golf clubs play an important role in golf games.

  Of the iron type categories, golf club types are generally divided into two main categories: muscle back type irons and cavity back type irons. Muscle back type irons can generally be defined as golf clubs formed from a single piece of metal having an increased thickness portion referred to as a “muscle portion”. Muscle back type irons have existed since the early days of golf, and US Pat. No. 2,007,377 (Link) shows the initial design of muscle back irons. On the other hand, it can be said that the cavity back iron generally refers to a golf club that forms an opening near the back surface of the golf club head. Although cavity type irons may generally have exposed open cavities as shown in US Pat. No. 4,826,172 (Antonius), cavity back irons are disclosed in US Pat. It may include a closed release structure that constitutes an enclosed space as shown in 766,092 (Mineur et al.).

  As an equipment for better golfers, the muscle back iron still remains the standard, but the invention of the cavity back iron provides significant performance advantages over the traditional muscle back iron. First, the moment of inertia of the golf club head can be increased by removing the weight from the rear portion of the golf club and placing the weight near the peripheral edge of the golf club head. In addition to increasing the moment of inertia, the cavity back iron can further improve the performance of the iron type golf club head by increasing the flight distance of the iron type golf club head. In general, a golf club can achieve a greater flight distance by increasing the coefficient of restitution of the hitting face, and the cavity back iron can achieve this by making the hitting face thinner.

  Cavity back irons require an opening at the back of the golf club head, which is not aesthetically appealing, for this reason, golf club designers add badges to fill the cavity in the opening I tried to remedy that drawback. U.S. Pat. No. 8,920,261 (Taylor et al.) Shows an example of a badge attempt that helps achieve that goal.

  In addition, when focusing on cavity back iron considerations, golf club designers have found an extremely thin face to allow greater deflection of the face upon striking to improve the performance of these types of irons. Is often attempted, as described above. Increasing face deflection during a collision with a golf ball generally allows the golf ball to move farther than a thicker face equivalent, thereby enhancing the performance of a cavity back iron type golf club. U.S. Patent No. 7,008,331 (Chen) shows one early example of trying a thin face iron to improve the performance of an iron type golf club head.

  Golf club designers have recognized that thinner materials are generally less durable than thicker materials and have attempted to counter the durability issues associated with thinning the striking face. US Pat. No. 8,961,336 (Parsons et al.) Addresses this problem by filling the internal cavity of a space-enclosed iron golf club head with a polymer to provide a structural support for the thinned face. An example of how to do this is provided.

  Despite all attempts to improve the performance of iron-type golf club heads, the striking face is beautifully attractive to address the increasing demands of striking face strength and toughness, none of the designs in the field Can't provide a good way. This has a striking face to improve performance in cavity type irons, especially in cavity type irons that may or may not have a hollow cavity that allows filler filling Because it is getting thinner.

U.S. Pat. No. 2,007,377 US Pat. No. 4,826,172 US Pat. No. 5,766,092 US Pat. No. 8,961,336

One aspect of the present invention is a golf club head, comprising a striking face portion positioned at a front portion of the golf club head and a rear cavity coupled to a rear portion of the striking face portion and having an opening. A chassis, wherein the opening provides access to the rear surface of the striking face portion, and further includes a multi-level badge, the multi-level badge having a first level and a second level. A golf club head in which the multi-level badge is attached to the cavity. The chassis back cavity further includes at least one support tab around the back cavity, the first level of the multi-level badge substantially contacts the back of the striking face, and the second level supports Substantially contacts the back of the tab.

  In another aspect of the present invention, an iron type golf club head includes a striking face portion positioned at a front portion of the iron type golf club head, and a back cavity coupled to a rear portion of the striking face portion and having an opening. Forming a chassis, wherein the opening provides access to a back surface of the striking face portion and further includes a multi-level badge, the multi-level badge having a first level and a second level. The multi-level badge is further attached to the back cavity, the first level of the multi-level badge substantially contacts the back surface of the striking face, and the second level substantially contacts the back surface of the cavity. The multi-level badge receives only a compressive force upon impact with the golf ball.

  In another aspect of the invention, the rear surface of the striking face and the lower front portion of the chassis muscle portion form a gap and a cavity, and a fluid having a temperature variable viscosity at least partially fills the gap and Contact the back surface of the face and the lower front portion of the muscle portion of the chassis.

  In another aspect of the invention, a fluid having a temperature variable viscosity at least partially fills the gap and cavity and connects the gap and cavity.

  These and other features, aspects and advantages of the present invention will be understood with reference to the following drawings, description and utility model registration claims.

  The foregoing or other features and advantages of the invention will be apparent from the following description of the invention, illustrated in the accompanying drawings. The accompanying drawings, which are incorporated herein and constitute a part of the specification, serve to explain the principles of the invention and enable those skilled in the art to practice the invention.

1 shows a rear perspective view of a golf club head according to an exemplary embodiment of the present invention. FIG. 1 is an exploded perspective view of a golf club head according to an exemplary embodiment of the present invention. FIG. 4 shows an enlarged rear view of a multi-level badge according to an exemplary embodiment of the present invention. 1 is an enlarged front view of a multi-level badge according to an exemplary embodiment of the present invention. FIG. 1 is a front view of a golf club head according to an exemplary embodiment of the present invention, more clearly showing the section line AA ′. FIG. FIG. 6 is a cross-sectional view of a golf club head according to an exemplary embodiment of the present invention along the cross-sectional line AA ′ shown in FIG. 5. FIG. 6 is a cross-sectional view of a chassis of a golf club head according to an exemplary embodiment of the present invention, taken along section line AA ′ shown in FIG. 5. FIG. 6 is a cross-sectional view of a multi-level badge according to an exemplary embodiment of the present invention along the cross-sectional line AA ′ shown in FIG. 5. FIG. 5 is an exploded perspective view of a golf club head according to an alternative embodiment of the present invention. FIG. 6 is another exploded perspective view of a golf club head according to an alternative embodiment of the present invention. FIG. 6 is a cross-sectional view of a golf club head according to an alternative embodiment of the present invention along the cross-sectional line AA ′ shown in FIG. 5. FIG. 6 is a cross-sectional view of a golf club head according to an alternative embodiment of the present invention along the cross-sectional line AA ′ shown in FIG. 5.

  The following detailed description implements the invention in the most conceivable manner at present. This description is not to be taken in a limiting sense but is merely for the purpose of illustrating the general principles of the invention, the scope of which is best defined by the appended claims for utility model registration. The

  The features of the various devices described below can be employed independently of each other and can be employed in combination with other features. However, the features of any one device need not address any or all of the problems discussed above, and may address one of the problems described above. Further, one or more of the above-described problems may not be fully addressed by any of the features described below.

  FIG. 1 of the accompanying drawings shows a perspective view of a golf club head 100 in accordance with an exemplary embodiment of the present invention. As shown in FIG. 1, an iron type golf club head 100 of the type shown here is a cavity back type iron having a cavity 103 at the rear of a chassis 102 of the golf club head 100. The cavity 103 is shown in this embodiment of the invention and may be generally covered with a multi-level badge 104 attached to the cavity 103. FIG. 1 of the accompanying drawings also shows additional components used to fit within the overall cavity 103 to complete the golf club head 100 in addition to the multi-level badge 104. Yes. The central cavity badge 106 shown here in FIG. 1 represents one of the additional components, the central cavity badge 106 is designed to fit within an internal opening 105 formed in the multi-level badge 104 itself, Molded. Finally, the golf club head 100 shown in FIG. 1 shows an outer badge 108 that is attached to the outer surface of the multi-level badge 104 to complete the golf club head 100. Incorporating the multi-level badge 104 shown in this embodiment of the invention allows the open cavity 103 to be covered by a beautiful and attractive badge, while at the same time adding additional badges without departing from the scope and content of the invention. Realize the chassis to install.

  FIG. 2 of the accompanying drawings shows an exploded perspective view of a golf club head 200 according to an exemplary embodiment of the present invention, and more clearly shows the relationship between the various components referenced in FIG. First, it can be understood from FIG. 2 that the chassis 202 of the golf club head 200 may be formed separately from the hitting face portion 201. Although the hitting face portion 201 shown in this embodiment may generally be formed from a steel type material to withstand strong impacts from a golf ball, in an alternative embodiment of the present invention, the hitting face portion 201 is: It may be made from alternative high strength materials such as titanium without departing from the scope and content of this invention. In addition to the above, it is important to note that the striking face 201 may generally include a sole tab 210 near the bottom of the striking face 201 that corresponds to the sole cutout of the chassis 202 of the body of the golf club head 200. . The sole tab 210 will generally be beneficial when the striking face 201 is made of a different material than the chassis 202 of the golf club head 200. This is because the sole tab 210 allows the weld line to be removed from the area of high stress that occurs during collision with the golf ball.

    FIG. 2 also shows the chassis 202 of a golf club head having a cavity 203 at the rear of the chassis 202, which forms a cavity type iron. The exploded view of the golf club head 200 shows the internal opening 205 in the cavity 203 in addition to the cavity 203, and the internal opening 205 is in contact with the back surface of the striking face 201. This opening is important for this idea. This is because the multi-level badge 204 can be brought into contact with the striking face 201 via the internal opening 205 and structural support for the golf club head 200 can be achieved. The multi-level badge 204 shown in FIG. 2 has a secondary cavity 207 that corresponds to the size and shape of the internal opening 205 so that the engagement between the internal opening 205 and the multi-level badge 204 is facilitated. Instead, an additional central cavity badge 206 is placed behind the multi-level badge 204. Adding the central cavity badge 206 shown in FIG. 2 forms an additional aesthetically complex badge on the golf club head 200 itself. Finally, an exploded view of the golf club head 200 shows an external badge 208 attached around the multilevel badge 204.

    FIG. 3 of the accompanying drawings shows an enlarged rear perspective view of the multi-level badge 304, allowing this very important portion of the golf club head to be shown in greater detail. As previously described, the rear perspective view of the multilevel badge 304 includes a secondary cavity 307 that produces the multilevel aspect of the multilevel badge 304. However, an enlarged front perspective view of the multilevel badge 304 is required to truly understand multidimensional and multilevel aspects.

  FIG. 4 of the accompanying drawings shows a front perspective view of a multi-level badge 404 according to an exemplary embodiment of the present invention. In this front perspective view, two different “levels” are identified and will be important in the cross-sectional view of the golf club head shown below. First, it can be seen that the multi-level badge 404 has a first level 412 that, when assembled, provides a surface that contacts the striking face 201 (shown in FIG. 2). In addition to the first level 412, this front perspective view of the multi-level badge 404 also shows a second level 414 in contact with the rear facing surface of the rear of the golf club head chassis. In other words, the second level 414 of the multi-level badge 404 surrounds the first level 412 of the multi-level badge 404 and is recessed or secondary cavity 307 ( 3).

  In order to more clearly understand the relationship between the various components, a cross-sectional view of a golf club head is very useful. However, prior to introducing a cross-sectional view of the golf club head, FIG. 5 shows a front view of the golf club head 500 as shown in cross-sectional view AA ′. Here, in FIG. 5, the cross-sectional line AA ′ is shown to divide the golf club head into two parts through the center of the golf club head that bisects the score line.

  FIG. 6 of the accompanying drawings shows a cross-sectional view of the golf club head 600 taken along section line AA ′ shown in FIG. The cross-sectional view of the golf club head 600 can more clearly show the various relationships between the components. In this cross-sectional view, it can be seen that the hitting face portion 601 is located in the front portion of the golf club head 600, and the hitting face portion 601 has a sole tab 610 extending rearward from the sole portion of the hitting face portion 601. Behind the perimeter of the hitting face portion 601, there is a chassis 602 of the golf club head 600, and the chassis 602 realizes a part of the topline and a part of the sole. The chassis 602 forms openings 205 (FIG. 2) that allow the multi-level badge 604 to engage multiple surfaces of the golf club head 600 in addition to forming additional exterior components of the golf club head 600. Cavity 203 having a reference) is formed.

  In this embodiment of the invention, the first level 612 of the multi-level badge 604 is located at the front portion of the golf club head 600 and engages the back surface of the striking face portion 601, thereby causing a collision with the golf ball. Helps absorb and attenuate severe effects. Here, the first level 612 of the multi-level badge 604 and the back of the striking face 601 have a thickness of less than about 1.5 mm, more preferably less than about 1.25 mm, and most preferably less than about 1.0 mm. It should be noted that a thin badge of polymer material 620 can further be included. The polymeric material 620 in this embodiment of the invention may generally have adhesive properties that form a bond between the back of the striking face 601 and the first level 612 of the multi-level badge 604. In addition to providing the adhesive properties described above, the polymeric material 620 may generally provide predetermined vibration absorption and structural integrity for the golf club head 600 as a whole. Finally, in an alternative embodiment of the invention, the polymeric material 620 is a grommet-type attachment mechanism that assists in attaching the multi-level badge 604 to the striking face 601 utilizing the opening 205 of the golf club head 600. There may be. The second level 614 of the multi-level badge 604 in this example is shown here as the level facing the front of the multi-level badge 604 that is positioned more rearward. The second level 614 in this embodiment is generally engaged with the rear facing surface of the cavity 203 (see FIG. 2) on the chassis 602 and the impact received by the first level 612 of the multi-level badge 604. Helps disperse and dissipate power.

  The various levels of the multi-level badge 604 are very important to the invention and are worth considering here in more detail. First, it is important to recognize that the relationship generated by the first level 612 and the second level 614 dissipates the impact force stress in a completely unique manner. More specifically, the present invention eliminates the compressive force on the multi-level badge 604 by contacting the multi-level badge 604 with the front surface of both the first level 612 and the second level 614, thereby reducing the multi-level badge 604. The pulling force on the badge 604 is used. In this embodiment, the impact force is distributed without applying additional pressure to the rear of the chassis 602 of the golf club head 600, so the tensile force of the multilevel badge 604 is preferred over the compression force.

  As a result of the unique force distribution achieved by multilevel badge 604, FIG. 6 of the accompanying drawings also shows other unique features of multilevel badge 604. More specifically, the multi-level badge 604 according to the present invention generally provides a first level 612 and a second level 614 with two or more different types within the cavity 203 (see FIG. 2) of the golf club head 600. May be in contact with two different surfaces. In this example, the depth of the first level 612 is completely recessed and is surrounded by the depth of the second level 614 so that the multi-level badge 604 contacts the golf club head 600 at different depths. Create a unique multi-level badge 604 that allows you to do so.

  To help illustrate the various dimensions described above, the chassis 702 and the multi-level badge 804 are separated by their cross-sectional views shown in FIGS. 7 and 8, respectively. First, FIG. 7 of the accompanying drawings shows a cross-sectional view showing the chassis 702 of the golf club head 700 together with the striking face portion 701. The striking face is located furthest away from the cavity 703 formed by the chassis 702 of the golf club head 700 and forms a first cavity depth of a first depth d1. A support tab 715 at the rear of the chassis 702 forms a second cavity depth d2. One or more support tabs 715 provide a surface on which the second level of the multi-level badge contacts the chassis described above. In this embodiment of the invention, the multi-level badge 704 contacts the golf club head 700 at the second cavity depth d2 near the top portion of the golf club head 700, but near the bottom sole portion of the golf club head 700. The golf club head 700 at the first cavity depth d1 near the center portion of the golf club head 700 before contacting the golf club head 700 back at the second cavity depth d2 described above. Contact. In this embodiment of the invention, d1 is always greater than d2, and d1 is generally greater than about 3.0 mm, more preferably greater than about 3.25 mm, and most preferably greater than about 3.5 mm. On the other hand, d2 may generally be less than about 2.5 mm, more preferably less than about 2.25 mm, and most preferably less than about 2.0 mm without departing from the scope and content of the present invention.

  FIG. 8 of the accompanying drawings shows a cross-sectional view of a multi-level badge 804 according to an exemplary embodiment of the present invention. This enlarged cross-sectional view of the multi-level badge 804 shows that the thickness of the multi-level badge (multi-material badge) 804 is a thickness of d3 for the majority of the multi-level badge 804, The portion has a reduced material thickness of d4 to accommodate the outer badge. The thickness d3 shown in this current exemplary embodiment is generally about 0.8 mm to about 1.2 mm, more preferably about 0.9 mm to about 1.1 mm, and most preferably about 1.0 mm. Good. The reduced material thickness d4 of the multi-level badge 804 in this current exemplary embodiment is generally less than about 0.9 mm, more preferably less than about 0.8 mm, and most preferably less than about 0.75 mm. Well, this does not depart from the scope and content of this invention.

  FIG. 8 of the accompanying drawings also shows a first level 812 and a second level 814 at two different levels of the multi-level badge 804 in addition to showing the thickness of the material. In addition to two badges at different levels, it can be used to help identify the relative angle of the first level 812 and the second level 814 with the angle θ1. In the present exemplary embodiment of the present invention, θ1 may generally be about 0 ° to about 20 °, more preferably about 0 ° to about 10 °, and most preferably about 0 ° to about 5 °.

  FIG. 9 of the accompanying drawings shows an exploded perspective view of a golf club head 900 according to an alternative embodiment of the present invention. In this exploded perspective view, the individual components of the golf club head 900 are more clearly shown and describe the relationship between each component. Similar to the discussion above, the golf club head 900 may include basic components such as a striking face portion 901 having a sole tab 910 attached to the front portion of the chassis 202. The chassis 902 may be attached to the front face of the striking face 901 that is exposed to the rear components of the golf club head 900, such as the first badge 904 and the second internal badge 906. In general, the polymer material 920 may be attached to the front surface of the first badge 904, and the polymer material 920 has adhesive properties that allow the badge 904 to be easily attached.

  In addition to the components described above, the exploded perspective view of the golf club head shown in FIG. 9 also shows a temperature variable viscosity fluid 922 that is hollow at the bottom of the chassis 902 (shown later at 1024 in FIG. 10). It can be shown in a state satisfying. By disposing the temperature-variable viscosity fluid 922 at this position, the temperature-variable viscosity fluid 922 is brought into contact with the back surface of the striking face portion 901 to realize vibration damping and improve the sound of the golf club head 900. In addition to filling the gap, the fluid 922 having a variable temperature viscosity fills the air between the striking face 901 and the front surface of the chassis 902. To show the cavity 1024 (shown in FIG. 10) formed by the chassis 902, FIG. 10 shows an exploded perspective view from the front.

  FIG. 10 of the accompanying drawings shows a front exploded view of a golf club head 1000 according to an alternative embodiment of the present invention. More specifically, according to the exploded view of the golf club head 1000 shown in FIG. 10, the cavity 1024 in the chassis 1002 can be shown more clearly. By showing the interior of the chassis 1002, the physical boundary of the fluid 1022 having a temperature variable viscosity can be shown more clearly. Therefore, since the fluid 1022 having a temperature variable viscosity is introduced into the rear portion of the striking face portion 1001 through the internal opening 1005, the fluid 1022 has a shape inside the chassis 1002 due to the viscosity characteristics of the fluid 1022 having the temperature variable viscosity. Is substantially adapted. In one exemplary embodiment of the invention shown here, the weight of fluid 1022 is from about 2.0 grams to about 8.0 grams, more preferably from about 2.5 grams to about 7.5 grams, most Preferably, all are from about 3.0 grams to about 7.0 grams, which do not depart from the scope and content of this invention.

  9 and 10 show temperature variable viscosity fluids 922 and 1022 that have the same shape as the cavity 1024 formed by the chassis 1002, but the actual shape of the fluid 1022 with temperature variable viscosity is Depending on the flow characteristics of the fluid 1022, it may vary slightly. In one embodiment of the invention, the temperature and viscosity may cause the fluid 1022 to be biased more toe, whereas in another embodiment, the temperature and viscosity may cause the fluid 1022 to be positioned in a loose heel. This may be biased side by side, and this does not depart from the scope and content of this invention. It should be noted here that, regardless of the actual shape of the fluid 1022, it is important that a portion of the fluid 1022 stays near the gap formed by the striking face 1001 and the front portion of the chassis 1002. is there. This gap provides a vibration dampening effect, thereby minimizing the unpleasant sound and feel of the golf club head 1000 when impacting the golf ball.

  The temperature variable viscosity fluid 1022 used in this preferred embodiment of the invention may generally be a pressure sensitive adhesive designed to be different at different temperatures. More specifically, the fluid 1022 in this example is H.264. B. It may be a hot melt type material, part number HL-2814, available from Fuller. The temperature variable viscosity of fluid 1022 is more than having a viscosity of 4125 cP (mPa · s) at 148.9 ° C. (300 ° F.) and a viscosity of 2010 cP (mPa · s) at 176.7 ° C. (350 ° F.). It can be specifically defined. By having variable viscosities at various temperatures, the fluid 1022 allows the fluid to reach a position in the golf club head 1000 where it experiences significant vibrations, and different properties that help to address sound and feel issues. Can be taken. In addition to viscosity values, the preferred fluid 1022 has a loop tack of 1276 g (45 ounces) and a 180 degree peel (60 s / 75 F, 1 mil) at 0.393 Kg / cm (2.2 lbs / inch) It is also worth recognizing that there is. These characteristics help identify the stickiness of the fluid 1022 and how it adheres to the back of the striking face 1001.

  To illustrate the specific relationships between the various components shown in this alternative embodiment of the invention, a cross-sectional view of a golf club head 1100 is shown in FIG. FIG. 11 of the accompanying drawings is a cross-sectional view of the alternative embodiment of the present invention taken along section line AA ′ shown in FIG. A cross-sectional view of golf club head 1100 shows fluid 1122 filled from the back side of chassis 1102 through internal opening 1105. The fluid 1122 flows downward through gravity and fills the cavity 1124 in the lower portion of the chassis 1102 through a gap 1126 formed between the back of the striking face 1101 and the front lower portion of the chassis 1102. . This gap 1126 may generally have a small distance d5 of about 1.0 mm to about 3.0 m, preferably about 1.5 mm to about 2.5 mm, and most preferably about 1.5 mm.

  As described above, setting the distance d5 of the gap 1126 to a small distance is important in properly realizing the function of the present invention. This is because the distance of the gap 1126 is made sufficiently small so that the fluid 1122 having a variable temperature viscosity provides sufficient support for the striking face, and in addition to the front surface of the sole muscle portion of the chassis 1102 It is because it makes it contact. In addition, the gap 1126 also needs to be large enough to allow the fluid 1022 to flow through the gap 1126 and reach the bottom cavity 1024 of the golf club head 1100. This distance d5 of the gap 1126 not only allows the fluid 1122 to remain sandwiched between the striking face portion 1101 and the chassis 1102, but also allows the temperature variable viscous fluid 1122 to flow through the lower cavity 1124 portion. This does not depart from the scope and content of this invention.

  FIG. 12 of the accompanying drawings shows a cross-sectional view of a golf club head 1200 according to an alternative embodiment of the present invention. In this example, it can be seen that the fluid 1222 fills only the gap 1126 portion of the golf club head 1200 and does not fill the cavity 1224 portion. This embodiment of the invention requires less fluid 1222 and may be preferred in situations where the concentration of fluid 1222 in gap 1226 provides the desired vibration damping without adding additional fluid 1222.

  Other things in the working example, or all numerical ranges, quantities, values, percentages, such as material quantity, moment of inertia, center of gravity position, loft, draft angle, various performance ratios, unless otherwise stated And others in the specification can be read as if "about" is placed in front of it even if the term "about" is not displayed in relation to that value, amount or range . Therefore, unless indicated otherwise, the number of parameters expressed in the specification and utility model claims are approximate, and this is a desired characteristic that is intended to be obtained by this invention. Will change accordingly. At a minimum, of course, it does not limit the application of the doctrine of equivalents, but each number of parameters should be interpreted in the light of the number of significant digits recorded and the normal rounding process.

  Although the numerical ranges and parameters that represent the broad range of this invention are approximate, the numerical values shown in the examples were recorded as accurately as possible. Any numerical value still contains errors necessarily resulting from the standard deviation found in each test measurement. Further, it should be understood that any combination of values, including the exemplified values, can be used where numerical ranges of various scopes are indicated.

  Of course, it should be noted that the foregoing relates to examples of examples of the present invention, and modifications can be made without departing from the spirit and scope of the present invention described in the claims of the utility model registration.

100 Golf Club Head 102 Chassis 103 Cavity 104 Multilevel Badge 105 Inner Opening 106 Central Cavity Badge 108 Outer Badge 200 Golf Club Head 201 Strike Face 202 Chassis 203 Cavity 204 Multilevel Badge 205 Internal Opening 206 Central Cavity Badge 207 Secondary Cavity 208 External badge 210 Sole tab 304 Multi-level badge 307 Secondary cavity 404 Multi-level badge 412 First level 414 Second level 500 Golf club head 600 Golf club head 601 Strike face 602 Chassis 604 Multi-level badge 610 Sole tab 612 First Level 1 614 Level 2 620 Polymer material 700 Golf club head 701 702 Chassis 703 Cavity 704 Multi-level badge 715 Support tab 804 Multi-level badge 812 First level 814 Second level 900 Golf club head 901 Strike face 902 Chassis 904 First badge 906 Second inner badge 910 Sole tab 920 Polymer material 922 Fluid 1000 Golf club head 1001 Strike face 1002 Chassis 1005 Internal opening 1022 Fluid 1024 Cavity 1100 Golf club head 1101 Strike face 1102 Chassis 1105 Internal opening 1122 Fluid 1124 Cavity 1126 Gap 1200 Golf club head 1222 Fluid 1224 Cavity 1226 gap

Claims (20)

A golf club head,
A striking face portion disposed in a front portion of the golf club head;
A chassis coupled to a rear portion of the striking face portion to form a rear cavity having an opening, wherein the opening provides access to a rear surface of the striking face portion;
The back surface of the hitting face portion and the lower front portion of the muscle portion of the chassis form a gap and a cavity,
The gap is positioned over and coupled to the cavity, and a fluid of variable temperature viscosity at least partially fills the gap, the fluid being the back of the striking face and the muscle of the chassis. A golf club head in contact with the lower front portion of a portion.   The golf club head of claim 1, wherein the fluid at least partially fills the cavity in addition to filling the gap.   The fluid of claim 1 having a viscosity of 4125 cP (mPa · s) at 148.9 ° C (300 ° F) and a viscosity of 2010 cP (MPa · s) at 176.7 ° C (350 ° F). The described golf club head.   The golf club head of claim 3, wherein the fluid loop tack is 1276 g (45 ounces).   The golf club head of claim 4, wherein the fluid has a 180 degree peel (60 seconds / 75 F, 1 mil) of 0.393 kg / cm (2.2 lbs / inch).   The golf club head of claim 1, wherein the fluid has a mass between 2.0 grams and 8.0 grams.   The golf club head of claim 6, wherein the fluid has a mass between 2.5 grams and 7.5 grams.   The golf club head of claim 7, wherein the fluid has a mass between 3.0 grams and 7.0 grams.   The golf club head of claim 6, wherein the gap has a distance between 1.0 mm and 3.0 mm.   The golf club head of claim 9, wherein the gap has a distance of 1.5 to 2.5 mm.   The golf club head of claim 10, wherein the gap has a distance between 1.5 mm.   The golf club head of claim 9, wherein the fluid at least partially fills the cavity.   The golf club head of claim 12, wherein the fluid continuously fills the gap and the cavity. A golf club head,
A striking face portion disposed in a front portion of the golf club head;
A chassis coupled to a rear portion of the striking face portion to form a rear cavity having an opening, wherein the opening provides access to a rear surface of the striking face portion;
The back surface of the hitting face portion and the lower front portion of the muscle portion of the chassis form a gap and a cavity,
The gap is positioned over and coupled to the cavity, and a fluid of variable temperature viscosity at least partially fills the gap and the cavity, the fluid connects the gap and the cavity;
The golf club head according to claim 1, wherein the fluid contacts the back surface of the hitting face portion and the lower front portion of the muscle portion of the chassis.   The golf club head of claim 14, wherein the gap has a distance between 1.0 mm and 3.0 mm.   The golf club head of claim 15, wherein the gap has a distance of 1.5 to 2.5 mm.   The golf club head of claim 16, wherein the gap has a distance between 1.5 mm.   The golf club head of claim 15, wherein the fluid has a mass between 2.0 grams and 8.0 grams.   The golf club head of claim 18, wherein the fluid has a mass between 2.5 grams and 7.5 grams.   The golf club head of claim 19, wherein the fluid has a mass between 3.0 grams and 7.0 grams.

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