CN103877712B - Glof club head with deflection division - Google Patents

Abstract

Glof club head includes bizet, bar bottom, hosel, face and deflection division.Deflection division provides flexible between glof club head and golf in collision process, and adjusts to vibrate with preset frequency after shock just.

Description

Glof club head with deflection division

The cross reference of related application

The application be September in 2012 submit within 14th, existing still pending U.S. Patent application No.13/618,963 part Continuation application, disclosure of which is hereby incorporated by by quoting its overall mode.

Technical field

The present invention relates to improved glof club head.More particularly, it relates to have flexible portion （compliant portion）Glof club head.

Background technology

The complexity of golf club design is well-known.Each part of club（I.e. club head, shaft, handle and its Subassembly）Specification directly affect the performance of club.Thus, by changing design specification, golf clubs can be adjusted to have There are specific performance characteristics.

Early have studied the design of club head.Consideration more prominent is loft, bar bottom wherein in club head design Angle, pole face angle, the swollen convex arc degree of pole face level, the swollen convex arc degree of club face square, center of gravity, inertia, material selection and overall club head weight Amount.Although this group of basic standard is typically the focus of golf clubs engineering design, some other design aspects must also cause Note.The indoor design of club head can be adjusted to realize particular characteristic, such as comprising in hosel or shaft attachment means, club head Periphery weight and the filler in hollow club head.

It is anti-that glof club head must firmly bear in collision process to occur between golf clubs and golf Multiple impact.The load produced during this temporal event can generate the peak force more than 2,000lbs.Thus, significant challenge It is that design face and club body are destroyed with resisting permanent deformation caused by material yield or fracture.The routine being made of titanium is hollow Often there is number akebi of metal the face thickness more than 2.5 millimeters to ensure the structural intergrity of club head.

Sportsman, which generally finds, can provide number wood of metal and the group of golf of ultimate range and the landing degree of accuracy Close.The distance that ball is advanced after shock is determined by the size of translational velocity of ball with the rotary speed or spin of direction and ball.Environment Condition, including atmospheric pressure, humidity, temperature and wind speed further influence the flight of ball.But, these environmental effects are beyond height The control of Er Fu equipment manufacturers.The golf landing degree of accuracy additionally depends on Multiple factors.A part in these factors is returned Tie in club head design, such as center of gravity and pole face are flexible.

USGA（USGA）--- the rules of golf regulator in the U.S. --- has golf performance Specification.These specifications define the dimension and weight of qualified golf.One USGA rule is by golf in rule Initial velocity after fixed shock is limited to 250 feet per seconds+2%（Or 255 maximum initial velocity of feet per second）.In order to obtain bigger Gao Er Husband's ball travel distance, it is necessary to maximize the recovery coefficient of the speed of the ball after shock and cue stroke while complying with the rules.

Generally, golf travel distance is the function for using the total kinetic energy that ball is assigned in club head knockout process, ignores ring The influence in border.In knockout process, kinetic energy is shifted by club and is stored in club head in elastic strain energy form and neutralized with viscoelastic Property adaptability to changes form is stored in ball.After shock, the energy stored in ball and club is with the translation and rotation of ball and club Rotary speed form is re-converted into kinetic energy.It is not perfectly elastic due to hitting, part energy is consumed in club head and shaken In the viscoelastic relaxation of dynamic and ball.Viscoelastic relaxation is the material character of polymeric material used in the golf of all manufactures.

The viscoelastic relaxation of ball is extra energy source, and it depends on rate of deformation.In order to minimize such effect, it is necessary to drop Low rate of deformation.This can be by allowing more face deformation to realize in knockout process.Because Metal Deformation can be with It is pure elasticity, the strain energy being stored in face returns to ball after shock, which thereby enhance ball after hitting goes out ball Speed.

Multiple technologies can be used to change the deformation of face, be especially thinned including uniform pole face, with ribbed stiffener and The thinned pole face of variable thickness.These designs should have enough structural intergrities to be hit repeatedly to resist, without making club Face permanent deformation.Generally, conventional cue head also shows the very big difference in terms of original ball speed after shock, depending on face On impingement position.Therefore, in this area there is still a need for the area with bigger " sweetspot " or substantially homogeneous high original ball speed The club head in domain.

Technological break-through in recent years provides longer distance for average golfer, such as by casting increasingly Thin thickness of the shell simultaneously turns to lighter material such as titanium, and thus manufacturing bigger club head, holding weight is constant or even more simultaneously Gently.Equally, face constantly becomes very thin.Thinner face makes recovery coefficient（COR）Maximize.Pole face resilience when hitting is got over Greatly, the energy for assigning ball is bigger, which thereby enhances distance.In order that pole face is thinner, manufacturer is had turned to generally than casting bar The pole face of the firmer forging in face, punching press or machining.Common way be by will forge or punching press metal face weld The body of rod or bar bottom is connected to be bonded these pole faces.Thinner pole face is easier damage.The invention provides provide with required Pliability and the face of impact resilience, thus maximize COR new method.

The content of the invention

The present invention relates to the golf of the deflection division including changing compliance characteristics compared with known golf club head Head.

In one embodiment, glof club head includes bizet（crown）, bar bottom（sole）, side wall（side wall）, hosel（hosel）, pole face（face）And deflection division（flexure）.Bizet defines the upper surface of glof club head, Bar bottom defines the lower surface of glof club head, and side wall extends between bizet and bar bottom.Hosel extended by bizet and including Shaft hole（shaft bore）.Pole face defines striking surface and intersected in head edge with lower surface.Deflection division, it is from batting Towards rear positioning（is spaced aftward of）, generally by the square upward and parallel to the golf of heel to toe The leading edge extension of club head, wherein the bar bottom is constructed by the first material with the first Young's modulus, the deflection division is by having Have the second Young's modulus the second material construct, the second Young's modulus be less than the first Young's modulus, wherein adjust the deflection division with Pole face is set to cross the width of deflection division to rear direction after shock immediately with about 2900Hz to about 4000Hz frequency Sinusoidal variations, and a part for deflection division described in wherein at least are constructed by β-Ti alloys.

In another embodiment, glof club head includes bizet, bar bottom, side wall, hosel, pole face and deflection division.Hat Portion defines the upper surface of glof club head, and bar bottom defines the lower surface of glof club head, and side wall is in bizet and bar bottom Between extend.Hosel is extended by bizet and including shaft hole.Pole face defines striking surface and in head edge and lower surface phase Hand over, and pole face periphery on bizet and bar bottom.Deflection division, it is positioned backward from striking surface, generally by heel to The side of toe extends upward and parallel to the leading edge of the glof club head, wherein the bar bottom is by with the first Young's modulus The first material construction, the deflection division constructs by the second material with the second Young's modulus, and the second Young's modulus is less than the One Young's modulus, wherein adjust the deflection division so that pole face to cross in rear direction the width of deflection division after shock immediately with About 2900Hz to about 4000Hz frequency sine change, a part for deflection division described in wherein at least is by β-Ti alloy structures Make, and wherein described deflection division is generally being crossed the body of rod big apart from glof club head leading edge by heel to toe direction Extend in about 5.0mm to about 20.0mm, and intersect with least a portion of the side wall of the glof club head.

Brief description of the drawings

The preferred feature of the present invention is disclosed in the accompanying drawings, wherein in several accompanying drawings, similar reference represents class As component, and wherein：

Fig. 1 is the side view of the embodiment of the club head of the present invention；

Fig. 2 is the bottom plan view of the embodiment of Fig. 1 club head；

Fig. 3 is corresponding to Fig. 2 line 3-3 cross-sectional view；

Fig. 4 is the cross-sectional view of golf club head point in figure 3 as details A Fig. 1 shown；

Fig. 5 is the perspective view of a part for the another embodiment of the club head of the present invention；

Fig. 6 is corresponding to Fig. 5 line 6-6 cross-sectional view；

Fig. 7 is the side view of the another embodiment of the glof club head of the present invention；

Fig. 8 is another side view of Fig. 7 glof club head；

Fig. 9 is the side view of the another embodiment of the glof club head of the present invention；

Figure 10 is another side view of Fig. 9 glof club head；

Figure 11 is the side view of the another embodiment of the glof club head of the present invention；

Figure 12 is the bottom plan view of Figure 11 glof club head；

Figure 13 is corresponding to Figure 12 line 13-13 cross-sectional view；

Figure 14 is the side view of the another embodiment of the glof club head of the present invention；

Figure 15 is the bottom plan view of Figure 14 glof club head；

Figure 16 is the perspective view of the another embodiment of the club head of the present invention；

Figure 17 is the exploded view of Figure 16 golf clubs；

Figure 18 is the cross-sectional view of Figure 16 golf clubs；

Figure 19 is the cross-sectional view of the optional construction of Figure 16 glof club head；

Figure 20 is the perspective view of the another embodiment of the glof club head of the present invention；

Figure 21 is the exploded view of Figure 20 golf clubs；

Figure 22 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 23 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 24 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 25 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 26 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 27 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 28 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 29 is the cross-sectional view of the embodiment of the glof club head of the present invention；

Figure 30 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 31 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 32 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 33 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 34 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 35 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 36 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention；

Figure 37 is the cross-sectional view of the part of the embodiment of the glof club head of the present invention.

Embodiment

Except in operational instances, or unless otherwise explicit stipulation, all number ranges, amount, value and percentage, such as material Those of amount, the moment of inertia, position of centre of gravity, loft and draft angle and the other parameters in specification following sections, can be with It is read as above having word " about ", even if term " about " does not occur clearly together with the value, amount or scope. Therefore, unless indicated to the contrary, specification below be with the numerical parameter enumerated in appended claims it is approximate, its It can be changed according to the required property for seeking acquisition by the present invention.At least, rather than attempt limit doctrine of equivalents be applied to The scope of claim, each numerical parameter should be explained according at least to the effective digital and the common rounding-off technology of application of report.

Although the number range of the wide scope of the statement present invention is approximate with parameter, the numerical value described in instantiation should Report as accurately as possible.But, any numerical value is inherently comprising the inevitable standard deviation found in its respective test measurement Certain error caused by difference.In addition, when the number range of statement excursion herein, it is anticipated that also may be used To use any combinations of these values comprising recitation value.

Recovery coefficient（coefficient of restitution）Or " COR " is measuring for collision efficiency.COR is separation Ratio of the speed to closing speed.As example, such as the golf for hitting golf tee, it can use down Formula determines COR：

(M_ball(V_ball‐post‐V_ball‐pre)+M_club(V_ball‐post‐V_club‐pre))/M_club(V_club‐pre‐V_ball‐pre)

Wherein, V_club‐postRepresent the speed of club after hitting；

V_ball‐postRepresent the speed of ball after hitting；

V_club‐preRepresent the speed of club before hitting（Value is 0 for USGA COR conditions）；With

V_ball‐preRepresent the speed for hitting forecourt.

Because the initial velocity of the ball in collision process is 0.0（Because it is fixed on golf tee）, formula letter Change as follows：

(M_ballV_ball‐post+M_club(V_ball‐post-V_club‐pre))/M_club(V_club‐pre)

COR generally depends on collision body（colliding bodies）Shape and material character.Perfectly elastic impact COR is one（1.0）, show no energy loss, and the COR of completely inelastic collision or perfect plasticity collision is zero（0.0）, table Bright collision body is not separated after shock, result in ceiling capacity loss.Therefore, high COR values show bigger ball speed and away from From.

Reference picture 1-4 a, it is shown that embodiment of glof club head 10 of the invention.Club head 10 includes working as quilt During golf ball, particularly improve the construction of club characteristic when the bottom of pole face is knocked.Club head 10 is ducted body, It includes bizet 12, bar bottom 14, the shirt rim extended between bizet 12 and bar bottom 14（skirt）16 or side wall, provide striking surface 20 face 18, and hosel 22.It is to be understood that the shirt rim 16 can include the bizet 12 and bar bottom bent toward each other 14 peripheral part between the upper surface of glof club head and lower surface to form transition.The ducted body is defined can be with Keep inner chamber 24 that is hollow or being partially filled with.If being filled with, preferably with foamed material or another low-gravity material Expect inner cavity filled 24.

When club head 10 is located at batting ready position, bizet 12 provides the upper surface of glof club head, and bar bottom 14 is carried For the lower surface of glof club head.Shirt rim 16 extends and constituted the periphery of club head between bizet 12 and bar bottom 14.Club Face 18 provides most preceding striking surface 20 and including being joined to the periphery on bizet 12, bar bottom 14 and shirt rim 16 with closed chamber 24.Ball Pole face 18 includes toe 26 and the heel 28 on the geometric center opposite side of face 18.Hosel 22 is from bizet 12 to extension Stretch, the bizet 12 adjacent with the heel 28 of face 18 of shirt rim 16 and shirt rim 16 stretch out, and provide and golf club Body（Do not show）Attachment structure.

Hosel 22 can have through hole or blind part（blind）Hosel is constructed.Especially, hosel 22 is typically tubular element, And chamber 24 can be extended through by bizet 12 to the bottom of the club head 10 at bar bottom 14, or it can terminate in bizet 12 With the position between bar bottom 14.In addition the near-end of hosel 22 can terminate in it is concordant with bizet 12 rather than as illustrated in fig. 1 and 2 that Sample is extending outwardly away from bizet 12 by club head.

Inner chamber 24 can have arbitrary volume, it is preferred that more than 100 cubic centimetres, and glof club head can have There are mixed pole (hybrid), alley bar (fairway) or a die model construction（driver type constructions）.This The quality of the club head 10 of invention is preferably above about 150 grams, is less than about 220 grams, although the club head can to Measured length has any appropriate weight with gross weight needed for providing and swing weight.The main body can by welding, soldering and/or The component of the punching press, forging, casting and/or the molding that bond together is constituted.Glof club head 10 can be by titanium alloy, any Other suitable materials or combination of different materials are constituted.In addition, by high-density matter, the weighted that such as tungsten is constituted can connect Close any part of the glof club head, such as bar bottom.

Face 18 can include the face insert 30 for being joined to face periphery 32, such as face-flange（face flange）.The pole face periphery 32 defines the opening for receiving the face insert 30.Face insert 30 preferably passes through the company of welding It is connected on the periphery 32.For example, multiple chads or trimmer can be provided（Do not show）It is used to position pole face insertion to be formed The supporting member of part 30, or face insert can with positioning welding to appropriate location, then by laser or plasma welding with It is connected face insert 30 and periphery 32.Face insert 30 can be made by milling, casting, forging or punching press, and It is made up of any suitable material, such as titanium, titanium alloy, carbon steel, stainless steel, beryllium-bronze and carbon fibre composite and combinations thereof. In addition, bizet 12 or bar bottom 14 can be with separately formed and be joined on the remainder of the main body.

The thickness of face insert 30 preferably about 0.5mm to about 4.0mm.In addition, insert 30 can have Even thickness or variable thickness.For example, face insert 30 can have thicker core and relatively thin exterior section.Another In one embodiment, face insert 30 can have two or more different thickness, and transition between thickness can To be fillet or stair-stepping.Or, the thickness of face insert 30 can be to toe 26, heel 28, bizet 12 and/or bar bottom 14 improve or reduce.It is to be understood that the back side of one or both of striking surface or face 18 can have at least one to be curved Bent, stair-stepping or flat part is to change the thickness of face insert 30.

As described above, club head 10 is included when it hits golf, the particularly lower part hits golf when pole face Improve the construction of club characteristic during ball.Deflection division 36 is formed in the front portion of bizet, bar bottom and/or shirt rim.Deflection division 36 is usual In the elongated ripple for being upwardly extended by the side of heel to toe and being formed in the front portion at bar bottom 14.

Deflection division 36 is generally flexible in the forward/backward direction, and is provided away from face 18 in club head 10 Flex section so that when face 18 hits golf, in addition to local buckling, at least a portion of face 18 can It is used as a unit translation or rotation.The golf club head design be with about 3000Hz between about 6000Hz Two kinds of different face vibration modes, and the deflection division is normally constructed to the second different vibration modes in the increase face. First face vibration mode is mainly included in the local buckling of median plane and the face during golf ball.Second The deflection profile of face vibration mode generally includes the flexure of the whole face of similar accordion, and to face and Gao Er The eccentric performance that offer improvement is provided between husband's ball.

Deflection division 36 is additionally configured to the rigidity at the generally holding rod bottom 14 on bizet/bar bottom direction so that will not notable shadow Ring the sound of glof club head.Relatively low bar bottom rigidity would generally reduce the sound of club head generation on bizet/bar bottom direction Adjust, and relatively low tone is typically unacceptable.

Deflection division 36 causes the front portion of club（Including face 18）Can differently be bent with original possible situation and The size and/or shape of face 18 is not changed.Especially, a part for the golf club head body adjacent with the face It is designed as the elastic bending in knockout process.This flexibility reduce below preferable impingement position square stance can send out originally Raw ball prompt drop is low with circling round.Preferable impingement position is the axle with extending perpendicular to striking surface and through gravity center of golf club head Position on the intersecting striking surface of line, and therefore the preferable impingement position is usually located at about 0.5mm above geometric surface center of gravity To 5.0mm distances.By providing deflection division 36 close to face 18 in bar bottom 14, when face 18 is less than ideal shock When hitting golf at position, the club head provides less ball prompt drop low and relatively low convolution.Waved accordingly, for identical Bar feature, the batting at preferable impingement position and lower position in the club head of the present invention can be than the phase on conventional cue head Walked still farther with impact position.It is particularly useful that deflection division 36, which is positioned in bar bottom 14, because preferable impingement position is in gold Belong to and be usually above geometric surface center in Wood-type golf club.Therefore, the major part in the face region is usually located at ideal Below impingement position.In addition, the generally tendency of golfer is the impact golf at face lower position.But It is, the shock to being positioned from geometric surface center of gravity to deflection division, to the deflection division provided in the other parts of club head 10 Club head 10 for, it can be found that similar result.For example, for the ball impact between bizet and geometric surface center of gravity, tool The club for having the deflection division for being placed in bizet can improve performance.

There is provided deflection division 36 in one embodiment so that it is basically parallel to the head leading edge 38 of club head 10 At least partially so that it generally bends together with head leading edge, and away from the offer in D selected by striking surface 20.It is preferred that In the 30mm of striking surface 20, the more preferably 20mm of striking surface 20 and more preferably at about 5.0mm between 20.0mm apart from D Place provides deflection division 36.For less glof club head, the club head such as alley wood or mixing timber construction preferably exists The deflection division 36 is provided in the 10mm of striking surface 20.

Deflection division 36 is made up of first component 40 and second component 42.First component 40 is joined to forwarding for bar bottom 14 Part 46（forward transmittal portion）Rear part edge on, and bent from bar bottom 14 into inner chamber 24.Second Component 42 is joined in the forward edge at the rear portion of bar bottom 14, and is also bent from bar bottom 14 into inner chamber 24.It is spaced away from bar bottom 14 First component 40 and the end of second component 42 be engaged with each other at summit 44.Preferably, the deflection division is elongated, and is led to Often extended by heel to direction of toe of last.

The size of deflection division 36 is selected so as to flexible needed for being provided during ball impact.As shown in figure 4, deflection division 36 has There are height H, width W and crimped length C.Height H extends in the Y direction between summit 44 and the outer surface of bar bottom 14.Width W It is the opening in the bar bottom for being produced by deflection division 36 and being extended in the Z-direction between deflection division 36 and the confluce of bar bottom 14 Width.Crimped length C extends and prolonged between deflection division 36 and the confluce forward and summit 44 at bar bottom 14 in the Z-axis direction Stretch.Preferably, deflection division 36, which has, is more than 4.0mm, preferably approximately 5.0mm to about 15.0mm, more preferably from about 6.0mm to big About 11.0mm height.In addition, deflection division 36 preferably have greater than 4.0mm, preferably approximately 5.0mm to about 12.0mm, it is more excellent The width of choosing about 7.0 to about 11.0mm.The deflection division also has about 0.8mm to about 2.0mm wall thickness, and these Size preferably extends at least 25% length along the club head total length of X-axis.In addition, first component 40 is inside by bar bottom Bending preferably has about 20.0mm to about 45.0mm radius of curvature into inner chamber.Table 1 below is exemplified with to less than Gao Er The ball impact of husband's club head ideal impingement position provides more effective energy transfer and therefore provides higher COR present invention implementation The size of example.

Table 1：Deflection division size

Analyze embodiments of the invention described above to determine the vibration to COR and glof club head using limited element analysis technique The effect of response.The club head of deflection division will particularly be lacked（That is baseline）Compared with embodiments of the invention.Table 2 outlines this Compare.

Table 2：Compare

In upper table, " additional mode (extra mode) " is referred to unless there is the vibration shape that otherwise deflection division there will be no Or natural mode of oscillation.Additional mode generally rotates and bent relative to golf club shaft remainder in face part When occur.Especially, embodiments of the invention include the deflection division for extending across bar bottom point, and additional mode is included in face The face that near interface between bizet is rotated is to cause the deflection division to bend.The deflection division is adjusted with so that being having analyzed Improve in terms of ball speed in maximally efficient about 2900Hz to about 4000Hz frequency range, be more preferably at about after batting Additional mode occurs at 3600Hz.For actually, the adjustment causes the width W of deflection division after shock immediately with about 2900Hz to about 4000Hz frequency sine change.If the extra mould occurs under the frequency higher or lower than the scope Formula, ball speed actually will be lower compared with not including the baseline example of deflection division.Analyzed using the FEA of embodiments of the invention 1 It has been determined that adjusting the deflection division to provide the additional mode that frequency is less than 2900Hz, especially from about 2157Hz, ball prompt drop is extremely Below the baseline glof club head for not including deflection division.In addition, as shown in the embodiment of the present invention 5, including excessively rigid scratch Pars convoluta, which is provided, does not include the glof club head of the additional mode, and only provides ball speed increase after the batting of minimum.

The translator unit at bar bottom 14（transmittal portion）46 prolong between deflection division 36 and head leading edge 38 Stretch.Preferable configuration translator unit 46 so that the power of golf ball is sent to deflection division 18 without making the translator unit 46 Substantially bending.For example, translator unit is orientated so that it does not allow flexible.Especially, with translator unit 46（In forward/backward On heel/direction of toe of last）The tangent transport plane α at an angle relative to ground in center.Angle [alpha] is preferably lower than or equal to The loft of glof club head when batting prepares so that the angle between transport plane and striking surface is usually equal to or less than 90 °, so that translator unit 46 is not easy to bend in impact.

Deflection division 36 can be molded by any suitable means.For example, deflection division 36 can be used as the main of bar bottom 14 Molding part.Or, deflection division 36 with punching press or can be forged into bar bottom parts.In addition, the deflection division can be by including thickening Region and in thickened areas be machined recess be molded with forming deflection division.For example, rotation milling method can be used for providing institute Recess is needed, the rotation milling method is generally described in the U.S. Patent number submitted for 14th applied in Augusts, 2012 of surface voids US8, in 240,021, but can be by improving the size of rotary cutting tool and changes the shape of cutter head to use this method Deflection division of the processing with required shape.Generally, this method uses a kind of instrument, and the instrument has parallel to the bar bottom and hung down The rotary shaft of the straight head leading edge in the glof club head and the cutting end for being shaped to deflection division shape needed for producing.The work Have and moved then along the cutting path for being typically parallel to head leading edge.It is used as hereinafter alternative further in greater detail Single flexure parts as shown in Figures 5 and 6, can be added to the deflection division on bar bottom with further adjusting lever bottom by case Deflection division.

As shown in the embodiment of figure 1, the face of glof club head can include independent punching press, forging and/or It is machined and is joined to the face insert in the main body of glof club head.Or, as shown in Figures 5 and 6, whole club Face with punching press, forging or can be cast into the part of uniform case, be bonded single face insert or with it so as to save Its mode is permanently attached in the main body.As another alternative solution, the face can be the pole face component of punching press or forging, Such as pole face cup（face cup）A part, the pole face component include bar bottom, bizet and/or skirt portion.In such embodiment party In case, pole face component is joined on the remainder of club head body, apart from about 0.2 inch to about 1.5 of the pole face plane Inch.Preferably, the translator unit or the pole face component at bar bottom of the pole face component including extending to deflection division include transport unit Divide and deflection division.

In the another embodiment illustrated in figs. 5 and 6, glof club head 60 is to include bizet 62, bar bottom 64, in hat The hollow body of the shirt rim 66, the face 68 of offer striking surface 70 and the hosel 69 that extend between portion 62 and bar bottom 64.This is hollow Main body defines inner chamber 74, and inner chamber 74 can keep hollow or can fill completely or partially.

Deflection division 76 bar bottom front portion formed, but itself or can be formed in bizet and/or shirt rim.Deflection division 76 is preferred It is in the length for extending generally by heel to direction of toe of last and being formed in the front portion at the bar bottom 64 of the main body of glof club head 60 Shape ripple.Deflection division 76 provides flex section at the rear of face 68 in club head 60 so that hit Gao Er in face 68 At least a portion face 68 can be translated or rotated as a unit in addition to local buckling during husband's ball.

Deflection division 76 causes the front portion of club, including face 68, can differently be bent with original possible situation and The size and/or shape of face 68 is not changed.This flexibility, which is reduced, to dub（I.e. away from preferable impingement position Batting）When the ball prompt drop that can occur originally it is low and in the convolution batted less than preferable impingement position.For example, by close to ball Pole face 68 is in offer deflection division 76 in bar bottom 64, and when batting is located at less than preferable impingement position, club head can reduce ball Prompt drop is low.Thus, in use, for general swing characteristics, the lower position on the face of the club head of the present invention The batting that place occurs can walk still farther when compared with the uniform impingement position on conventional cue head.

There is provided deflection division 76 in one embodiment so that it is basically parallel to the head leading edge 78 of club head 60 At least partially, and within the specific range D apart from striking surface 70 provide.It is preferred that in the 30mm of striking surface 70, more preferably Deflection division 76 is provided at D in the 20mm of striking surface 70, most preferably in 10mm.

In the present embodiment, deflection division 76 is made up of first component 80, the component 83 of second component 62 and the 3rd, and generally With the separate part form construction being joined on bar bottom 64.First component 80 be joined to bar bottom 64 forward part 65 to Bent in back edge and from translator unit 65 into inner chamber 74.Second component 82 is joined in the forward edge at the rear portion at bar bottom 64 And bent from bar bottom 64 into inner chamber 74.The first component 80 being spaced away from bar bottom 64 and the end of second component 82 are on summit 84 Place is engaged with each other.Preferably, the deflection division is elongated, and is generally being extended by heel to direction of toe of last.

Similar to embodiment above, select the size of deflection division 76 to respond elastic bending needed for batting is provided.Scratch Pars convoluta 76 has height H, width W and crimped length C.Deflection division 76 preferably has greater than 4mm, preferably approximately 5mm to about 15mm height, and more than 4mm, preferably approximately 5mm to about 10mm width, and about 0.8mm is to about 2.0mm wall Thickness, and these sizes preferably extend at least 25% length along the club head total length of X-axis.

Deflection division 76 includes can be used for the 3rd flexible component 83 of adjustment deflection division 76.3rd component 83, which can be joined to, scratches The inner surface of pars convoluta 76（As shown）Or on outer surface, and locally improve the rigidity of deflection division 76.3rd component 83 is preferably by having There is the more low-gravity material of material than one of first component 80 and second component 82 to constitute.3rd component 83 can be bonded（Such as By using adhesive）Or mechanical engagement（Such as pass through fastener, welding or soldering）Onto first component 80 and second component 82. 3rd component can be by any metal（Such as aluminium）Or nonmetallic materials（Such as carbon fibre composite or polyurethane）Constitute.

The position of deflection division in glof club head, size and number can be selected to provide required characteristic.For example, as schemed Shown in 7 and 8 glof club head 90, multiple deflection divisions can be included.Glof club head 90 has generally by bar bottom 92, hat The hollow body construction that portion 94, shirt rim 96, face 98 and hosel 100 are limited.Bizet deflection division 102 is placed in before bizet 94 Portion, bar bottom deflection division 104 is placed in the front portion at bar bottom 92.Deflection division 102,104 respective shapes and size are preferably such as institute above State deflection division such.

In other embodiments, it can include around a golf club head body part or entirely around golf The deflection division of head main body.As shown in figs. 9 and 10, glof club head 110 has by bar bottom 112, bizet 114, shirt rim 116th, the hollow body construction that face 118 and hosel 120 are limited.Deflection division 122 is formed in the front portion of glof club head, And around the periphery of the glof club head.Deflection division 122 is generally with the club facial plane parallel to glof club head 110 Plane is formed.The distance between deflection division 122 and face 118 can change along its length to be provided with adjusting deflection division 122 The partial result flexible to glof club head.For example, each several part of deflection division 122 can be further compared with other parts Separated with face 118.As shown, in one embodiment, the heel and toe of deflection division 122 and deflection division 122 Bar bottom and crown member compared to further separating with face 118.Further, it is also possible to change the size of deflection division 122 to adjust The partial result flexible to glof club head that whole deflection division 122 is provided.As shown, each several part of deflection division 122 Can have different height, width and/or crimped length to change the characteristic of each several part of deflection division 122.

In additional embodiment, as figs 11-13, flexible deflection division can be with many material low-density covering members With reference to.For example, glof club head 130 generally has by bar bottom 132, bizet 134, shirt rim 136, face 138 and hosel 140 The hollow body construction of restriction.Glof club head 130 is additionally included in the anterior formation at the bar bottom 132 of glof club head 130 Deflection division 142.Covering 144 is also included within glof club head 130 and is configured to cover the outer surface of the deflection division.

Covering 144 is typically to cross deflection division 142 to dispose to typically surround the material bands of deflection division 142.Covering 144 size causes it to cover part or all of deflection division 142, and extends to glof club head 130 In the part for not including deflection division.For example, as shown in FIG. 11 and 12, covering 144 crosses the deflection division being placed on bar bottom 132 142 extend and cover deflection division 142.In addition, covering 144 constitutes a part for shirt rim 136 and bizet 134.Covering 144 is excellent Choosing is made up of the material different from bar bottom 132, bizet 134 and shirt rim 136.Covering 144 is by welding, soldering or is adhered to height It is joined on the adjacent part of golf ball head 130 on those adjacent parts.Deflection division and covering are preferably by titanium alloy structure Into, such as beta titanium alloys, and width is between about 2.0mm and 20.0mm, thickness about 0.35mm and 2.0mm it Between.

The covering can be included to participate in control glof club head when bar bottom is placed on the surface of competition area Batting ready position and eliminate deflection division unacceptable perception.Especially, the covering can be included, to work as club head It is placed on the vision bar for adjusting glof club head when on the surface of competition area by changing the contact surface of glof club head Face angle.The covering is configured about the periphery of glof club head to the bizet, it is possible to replace a part for periphery Material provides extra unrestricted choice quality, lower and/or deeper center of gravity position to obtain the agent structure of less dense, thus Put and higher the moment of inertia, thus improve performance and apart from potentiality.

In effect, covering provides bizet flexibility and deflection division provides bar bottom flexibility.It is used as further alternative Case, covering can remove the flexibility for making it only provide the golf club head point away from bar bottom from deflection division.In the example In son, the size of part is preferably in the scope described in Figure 11-13.

Referring now to Figure 14 and 15, description is included into the glof club head 150 of deflection division 162, the edge of deflection division 162 Its heel has the variable spaces relation to club facial plane to toe length.Due to golf clubs head geometry with The round-shaped of the stress being applied in impact on face is associated（coupled with）, the bottom of face is usual Different degrees of stress is undergone at different heel to toe position.Generally, in the golf of heel and toe end The club head portion experience stress lower than golf clubs part immediately below face center of gravity, and in the area of deflection division 162 Stress gradient is changed into the stress on bar bottom in domain.Change deflection division intersecting relative to club facial plane and/or face/bar bottom Head leading edge distance to meet the corresponding strength at diverse location.For example, the heel and toe of deflection division are preferably placed at Club facial plane and the position of head leading edge closer to glof club head so that these parts are even in compared with low-stress Especially it is more likely to occur down and during off-center hits bending.

Glof club head 150 has what is limited by bar bottom 152, bizet 154, shirt rim 156, face 158 and hosel 160 Hollow body is constructed.Deflection division 162 is formed in the front portion of glof club head, and is arrived generally transverse to glof club head in heel Bar bottom and shirt rim are extended through on direction of toe of last.Deflection division 162 generally includes core 164, toe 166 and heel 168.Such as Upper described, each several part of deflection division 162 is with relative to the placement of the different spaces relation of club facial plane so that core 164 At the more rear of club facial plane compared with toe 166 and heel 168.In addition, deflection division 162 include along shirt rim 156 respectively by Heel and the toe extension 170,172 that heel 168 and toe 166 extend back.Heel and toe extension 170,172 can also be to Converge afterwards at extension and the position on shirt rim or bar bottom.

In additional embodiment, the deflection division mainly constructed there is provided many materials.Reference picture 16-18, golf clubs First 180 generally there is the ducted body limited by bar bottom 182, bizet 184, shirt rim 186, pole face 188 and hosel 190 to construct, and Club head includes deflection division 192.Deflection division 192 is included in the front portion of glof club head 180, and may be configured to be placed in bar Tubular element between face part 194 and rear body section 196, as illustrated, forming it into ring in the middle of one.The ring has Selected rigidity is consistent with the local buckling that rum point occurs to allow the overall situation of pole face to bend.Similar to embodiment above, Adjustment deflection division 192, which to hit, assigns the vibration frequency for crossing deflection division in about 2900Hz to about 4000Hz.Selection should The characteristic of ring is used as extra control and optimization COR, and individual features time（CT）, the method for pole face value, especially for Batting away from ideal impingement position.

Deflection division 192 is by Young's modulus less than the neighbouring part of face portion 194 and the material structure of rear body section 196 Into.Deflection division 192, face portion 194 and rear body section 196 are preferably by easily connecting（For example weld）Material structure Make.For example, face portion 194 and rear body section 196 preferably the first titanium alloy are constructed, deflection division 192 is preferably in detail below The beta- titanium alloys construction of description.Deflection division 192 can be constructed, makes its thickness equal with neighbouring part thickness so that deflection division Outer surface and neighbouring part flush with outer surface, as shown in figure 18.Selectively, as shown in figure 19, deflection division 192a can be constructed Make its thickness different from neighbouring part so that deflection division 192a outer surfaces are recessed in neighbouring part outer surface.It is used as further replacement Scheme, can construct deflection division makes nearly partial outer face protrusion near its outer surface（proud）Or rise (raised).

In addition, deflection division 192, which can be combined, provides low intensive carbon composite ring.Junction configuration, ring geometry （The ring width and thickness such as changed such as position）, ring position, machine direction, resinous type and percent resin content All it is choosing to optimize the parameter that deflection division 192 is flexible so that the ball speed that goes out for crossing a rod face is improved, keeps simultaneously The durability of glof club head.It is preferred that carbon, which is combined deflection division, is bonded to adjacent metal face portion and adjacent metal rear portion Main part.For example, deflection division can be about with width range in about 12.0mm to about 20.0mm and thickness 0.5mm to about 3.0mm ring, and thickness may change around periphery according to position.

Figure 20 and 21 glof club head is combined with many material deflection divisions.Glof club head 200 includes deflection division 202, similar to deflection division 192, the deflection division 202 relies primarily on material property and changes intensity, but it is constructed comprising many materials.It is high Golf ball head 200 is generally configured by face portion 204, and it is hollow that deflection division 202 and rear body section 206 are limited Body.When face portion 204, when deflection division 202 and rear body section 206 are connected, they form pole face 208, bizet 210, bar bottom 212, shirt rim 214 and hosel 216.

Deflection division 202 includes front part 218, intermediate member 220 and rear part 222.Preferred material causes the He of front part 218 Rear part 222 is easily engageable to arrive face portion 204 and rear body section 206 so that intermediate member 220 is thin and flexible enough, The extra vibrating mode in the range of about 2900Hz to about 4000Hz with frequency can be provided.In a certain case study on implementation In, front part 218 and rear part 222 are metal, and intermediate member 220 is placed between front part 218 and rear part 222, and by Carbon fibre composite is constituted.It is preferred that rear part 222 and the interface between pole face 208 and front part 218 at intervals of extremely Few 6.0mm, more preferably at least 12.0mm.Hosel 216 can be constructed by metal and/or nonmetallic materials.In a certain case study on implementation In, face portion 204 and rear body section 206 are made up of titanium alloy, and front part 218 and rear part 222 are less than titanium by density, And it is preferred that Young's modulus is constituted less than the material of titanium, such as aluminium or magnetic alloy, intermediate member 220 are made up of carbon fiber composite, The compound is thin and flexible enough with frequency response needed for providing.In addition, front part and/or rear part can be with compound middle structures Part is cast together.Under normal circumstances, material is selected to provide interelement enough bond strengths using common methods, such as viscosity knot Close.

The glof club head of case of the present invention may also include extending across positioned at glof club head rear portion and The deflection division of interface between pole face, as depicted in figures 22 and 23.Glof club head 230 generally has by bar bottom 232, bizet 234, shirt rim 236, the ducted body construction that pole face 238 and hosel 240 are limited, and including deflection division 242.Deflection division 242 is wrapped Include the forward part in glof club head 230 and be placed in pole face 238 and bar bottom 232, between bizet 234 and shirt rim 236.

Deflection division has selected intensity to allow pole face overall situation flexure consistent with the flexure locally occurred in rum point.Class Be similar to embodiment above, adjustment deflection division 242 to hit assign cross the vibration frequency of deflection division about 2900Hz to about 4000Hz.The characteristic of the ring is selected as control and optimization COR, and individual features time（CT）, pole face The extra method of value, especially for the batting away from preferable impingement position.

Deflection division 242 be usually located at the periphery of pole face 238 so that its extend across from the pole face of glof club head 230 to The rear portion of glof club head（That is bar bottom 232, bizet 234 and shirt rim 236）Transition bent portion.As illustrated, scratching Pars convoluta 242 may be discontinuous so that it is interrupted by the hosel part of glof club head.Deflection division 242 ends in flange Place, the flange provides the fastener in the mounting deflection portion 242 on glof club head 230（Characteristic）.It should be understood that this connects Component can be to provide to form docking, overlap joint, the plane that interlocking and groove connect etc..Deflection division 242 includes pole face flange 244 with after Portion's flange 246.Pole face flange 244 is bonded to the circumferential edge 248 of pole face 238.The part of aft flange 246 is bonded to bar bottom 232nd, the peripheral part of bizet 234 and shirt rim 236, such as by being bonded to bizet flange 250 and bar bottom flange 252.Pole face flange And the distance between aft flange preferably about 2.0mm is between about 12.0mm.

Material of the deflection division 242 preferably by Young's modulus less than glof club head neighbouring part is constituted.Deflection division 242, The rear portion of face portion 238 and glof club head 230 is preferably by easily connecting（For example weld）Material construction.Example Such as, face portion 238 and rear portion preferably the first titanium alloy is constructed, and deflection division 242 is preferably described below in detail Beta- titanium alloys are constructed.

In addition, deflection division 242 can be constructed by providing low intensive carbon fiber composite.Junction configuration, ring geometric form Shape, ring position, machine direction, resinous type and percent resin content are all to select to optimize the parameter that deflection division 242 is flexible, So that the ball speed that goes out for crossing a rod face is improved, the durability of glof club head is maintained.Carbon complex Deflection division is preferably engaged to adjacent metal pole face and adjacent metal rear body section.

As shown in figure 24, in another case study on implementation, deflection division is bonded to face member in transition position, and the transition position is located at Between pole face and the rear portion of glof club head.For example, glof club head 260 generally has by bar bottom 262, bizet 264, shirt rim 266, pole face 268, the ducted body construction that hosel and deflection division 272 are limited.Deflection division 272 is included in golf The forward part of head 260 and be normally constructed to be located at pole face 268 and bar bottom 262, the annular structure between bizet 264 and shirt rim 266 Part.

Similar to embodiment above, adjustment deflection division 242 to hit the vibration frequency for crossing deflection division assigned In about 2900Hz to about 4000Hz.The periphery that deflection division 272 is located at pole face 268 causes it to extend across from golf clubs First 260 pole face to glof club head rear portion（That is bar bottom 262, bizet 264 and shirt rim 266）Transition bending section Point.Deflection division 272 ends in flange, and the flange provides the fastener in the mounting deflection portion 272 on glof club head 260 （Characteristic）.In addition, deflection division 272 includes pole face flange 274 and aft flange 276.Pole face flange 274 is bonded to pole face 268 Periphery 278.The part of aft flange 276 is bonded to the circumferential edge at bar bottom 262, bizet 264 and shirt rim 266, is such as bonded to bizet Flange 280 and bar bottom flange 282.

Material of the deflection division 272 preferably by Young's modulus less than glof club head neighbouring part is constituted.Deflection division 272, The rear portion of pole face 268 and glof club head 260 is preferably by easily connecting（For example weld）Material construction.For example, Pole face 268 and rear portion preferably the first titanium alloy are constructed, and beta- titanium of the deflection division 272 preferably by being described below in detail Alloy is constructed.

As shown in figure 25, in another case study on implementation, glof club head 290 includes being used for deflection division 292 being bonded to The boundary surface member of the neighbouring part of glof club head 290.Preceding boundary surface member 294 is placed in deflection division 292 and face member 296 Between.Similarly, rear boundary surface member 298 is placed between deflection division 292 and rear body component 300.

In embodiments of the present invention, preceding boundary surface member 294 and rear boundary surface member 298 are all configured to be placed in adjacent component Between annular construction member.Preceding boundary surface member 294 includes passing through the pole face flange 302 for being bonded to face member 296, and passes through It is bonded to the deflection division flange 304 of deflection division 292.Expose the preceding boundary part of surface member 294 and form golf clubs First 290 front surface portion.Boundary surface member 294 keeps apart the periphery of leading edge from the face member 296 of deflection division 292.After divide Interface members 298 include being bonded to the rear body flange 306 of rear body component 300 and are bonded to the deflection division flange of deflection division 292 308.Boundary surface member 298 separates rear body component 300 and deflection division 292 afterwards.

Glof club head 290 is constructed with many materials.In certain example, rear body component 300 and face member 296 are closed by titanium Gold construction, and it is possible to constructed by identical titanium alloy, for example Ti6-4.Preceding boundary surface member 294 and rear boundary surface member 298 By being bonded to face member 296, the material construction of deflection division 292 and the afterwards material of body component 300.In certain example, interface Component is constructed by aluminium alloy, and deflection division is constructed by carbon fiber composite.It will be further appreciated that boundary surface member 298 is not Constant shape of cross section need to be configured to.

As shown in figure 26, glof club head 320 includes being used for deflection division 322 is bonded into the neighbour of glof club head 320 The boundary surface member of near-end point.Preceding boundary surface member 324 is placed between deflection division 322 and face member 326.Similarly, rear point Interface members 328 are placed between deflection division 322 and rear body component 330.

Preceding boundary surface member 324 and rear boundary surface member 328 are all configured to the annular construction member being placed between adjacent component.Preceding point Interface members 324 include the pole face flange 332 by being bonded to face member 326.Preceding boundary surface member 324 also includes connecing It is bonded to the deflection division flange 334 of the forward flange 340 of deflection division 322.Expose the preceding boundary part of surface member 324 and form golf The front surface portion of club head 320.Surface member 324 of demarcating isolates the leading edge of deflection division 322 from the periphery of face member 326 Open.Boundary surface member 328 includes being bonded to the rear body flange 336 of rear body component 330 and is bonded to the deflection division of deflection division 322 afterwards Flange 338.Boundary surface member 328 separates rear body component 330 and deflection division 322 afterwards.

Glof club head 320 is constructed with many materials.In certain example, rear body component 330 and face member 326 are closed by titanium Gold construction, and it is possible to constructed by identical titanium alloy, for example Ti6-4.Preceding boundary surface member 324 and rear boundary surface member 328 Face member 326, the material construction of deflection division 322 and the afterwards material of body component 330 are bonded to by selection.In certain example, point Interface members are constructed by aluminium alloy, and deflection division is constructed by carbon fiber composite.

Reference picture 27, glof club head 350 includes deflection division 352, and the deflection division is separated（is spaced from）It is high Transition region between golf club rear portion and pole face 354.Under normal circumstances, glof club head 350 generally has by bar bottom 356, bizet 358, shirt rim 360, pole face 354, the ducted body construction that hosel and deflection division 352 are limited.

Deflection division 352 is placed between pole face 354 and glof club head 350.Deflection division 352 is typically to have U-shaped cross section The annular construction member of shape so that it includes forward flange 362 and rear flange 364.Forward flange 362 is bonded to the pole face method of pole face 354 Orchid 366, rear flange 364 is bonded to the flange of the rear portion of golf clubs, and it includes bizet flange 368 and bar bottom flange 370。

Case study on implementation described in Figure 28 and 29 is similar with Figure 27, but including another flange configuration.As shown in figure 28, golf Head 380 has the ducted body structure limited by bar bottom 382, bizet 384, shirt rim 386, pole face 388, hosel and deflection division 390 Make.Deflection division 390 is placed between the rear portion of pole face 388 and glof club head, and the rear portion includes bar bottom 382 and bizet 384.Deflection division 390 is typically to include the annular construction member of preceding bonding part 392 and rear flange 394.Preceding bonding part 392 is to surround And it is bonded to a part for the deflection division 390 of pole face flange 396 so that it receives at least a portion of pole face flange 396.Afterwards The part of flange 394 is adjacent and bonded to bar bottom flange 398 and bizet flange 400.

As shown in figure 29, glof club head 410 has by bar bottom 412, bizet 414, shirt rim 416, pole face 418, hosel And the ducted body construction that deflection division 420 is limited.Deflection division 420 is placed between the rear portion of pole face 418 and glof club head, The rear portion includes bar bottom 412 and bizet 414.Deflection division 420 is typically to include the annular of forward flange 422 and rear flange 424 Component.Forward flange 422 is adjacent and bonded to pole face flange 426.The part of rear flange 424 is adjacent and bonded to bar bottom flange 428 and bizet flange 430.

During golf ball, the deflection division configuration of each case study on implementation can be selected in multiple different schemes Performance after adjustment is provided.Figure 30-34 describes the multilayer configuration of deflection division plurality of optional.Especially described deflection division includes tool There are the flexure parts of plurality of optional geometry.For example, Figure 30 deflection division 440 is with angular（angular）Cross section Shape, it includes the flexure parts 442 for being usually formed as l-shaped member.Flexure parts 442 are bonded to the golf body of rod 448 forward flange 444 and rear flange 446.As illustrated, forward flange 444 and rear flange 446 are convergence flange toward each other （convergent flanges）.Forward flange 444 and rear flange 446 are generally near the pole face 452 of glof club head and high The bar bottom 450 of golf ball head main body 448 is integrally formed.As it was previously stated, it is preferred that deflection division 440 is located at the striking surface of pole face 452 In about 20mm, and between more preferably at about 5.0mm and 20.0mm.Flexure parts 442 can be connect by any machinery Conjunction process（As welded, brazing filler metal, machanical fastener, Diffusion Welding, liquid interface Diffusion Welding, superplastics is molded and spread Welding, and/or use bonding agent）It is bonded to forward flange 444 and rear flange 446.Golf is allowed into production process The configuration of head internal cavities, such as hat draw configuration or face to draw configuration so that can be easily accomplished engaging process.

As shown in figure 31, in another case study on implementation, glof club head 462 includes cross-section with ripple type or gauffer type The deflection division 460 of face shape.Deflection division 460 is made up of flexure parts 464, the preceding method of the component and glof club head 462 Orchid 466 and rear flange 468 are engaged.Forward flange 466 and rear flange 468 generally glof club head pole face 470 vicinity with The bar bottom 472 of glof club head body 462 is integrally formed.As it was previously stated, it is preferred that deflection division 460 is located at the striking surface of pole face 470 In about 20mm, and between more preferably at about 5.0mm and 20.0mm.Flexure parts 464 can be connect by any machinery Conjunction process（As welded, brazing filler metal, machanical fastener, and/or use bonding agent）It is bonded to forward flange 466 and rear flange 468.

In another case study on implementation, the flexure parts of deflection division channel shape by flange and on the whole are formed.Reference picture 32, glof club head 480 includes the deflection division 482 formed by flexure parts 484, and the flexure parts are bonded to golf The flange at the bar bottom 492 of club head 480, such as by welding, brazing filler metal and/or uses bonding agent.It is preferred that deflection division 482 is located at pole face In 494 striking surface about 20mm, and between more preferably at about 5.0mm and 20.0mm.Especially, parts 484 are bent Typically channel shaped member, the component includes receiving forward flange 488 and the groove of the part of rear flange 490（recesses）486.It is recessed Groove 486 selects the component needed for be provided between forward flange 488 and rear flange 490 by the spaced-apart of flexure parts 484 Interval.

As described in Figure 33, in similar case study on implementation, glof club head 500 includes deflection division 502, and the deflection division is by having The flexure parts 504 for having passage shape cross section are formed.Flexure parts 504 are bonded at the bar bottom of glof club head 500 The flange formed on 506, such as by welding, brazing filler metal, and/or uses bonding agent.It is preferred that deflection division 502 is located at hitting for pole face 508 In sphere about 20mm, and between more preferably at about 5.0mm and 20.0mm.Especially, flexure parts 504 are generally Channel shaped member, the component defines the groove for receiving forward flange 510 and the part of rear flange 512（slot）.

As described in Figure 34, in another case study on implementation, glof club head 520 includes deflection division 522, and the deflection division is by having The flexure parts 524 for having passage shape cross section are formed.It is cross-section that flexure parts 524 are configured with common shark tooth shape Face, is especially included in the first bent portion and common planar section that apex converges.Flexure parts 524 are bonded to The flange formed on the bar bottom 526 of glof club head 520, such as by welding, brazing filler metal, and/or uses bonding agent.It is preferred that bending Portion 522 is located in the striking surface about 20mm of pole face 528, and between more preferably at about 5.0mm and 20.0mm.Especially, It is typically channel shaped member to bend parts 524, and the component defines the groove for receiving forward flange 530 and the part of rear flange 532 （slot）.

Reference picture 35, another case study on implementation of glof club head 540 includes deflection division 542, and the deflection division is in shape It is similar to case study on implementation described in Figure 34, but deflection division 542 is stretched out by the bar bottom 546 of glof club head.Deflection division 542 Formed by the flexure parts 544 with the cross section for forming passage.Flexure parts 544 are configured with common shark tooth Tooth form cross section, is especially included in the first bent portion and common planar section that apex converges.Bend parts 544 The flange formed on the bar bottom 546 of glof club head 540 is bonded to, such as by welding, brazing filler metal, and/or bonding agent is used. It is preferred that deflection division 542 be located at pole face 548 striking surface about 20.0mm in, and more preferably at about 5.0mm and 20.0mm it Between.

As described in Figure 36, in another case study on implementation, glof club head 560 includes deflection division 562.Deflection division 562 by Flexure parts 564 with generally tubulose cross section are formed.It is cross-section that flexure parts 564 are configured with common tubulose Face shape, although and it is described as having annular transverse shape, but it is understood that it can have any horizontal stroke Section configuration.Flexure parts 564 are bonded to the flange 568 formed on the bar bottom 566 of glof club head 560, such as pass through Welding, brazing filler metal, and/or use bonding agent.Flexure parts 564 have supplement flange 568 and provide the outside of composition surface Shape, to allow deflection division component 564 to be bonded to flange 568.It is preferred that the striking surface that deflection division 562 is located at pole face 570 is big In about 20.0mm, and between more preferably at about 5.0mm and 20.0mm.

Reference picture 37, in another case study on implementation, glof club head 580 includes deflection division 582.Deflection division 582 is in shape It is similar to case study on implementation described in Figure 34 on shape, but deflection division 582 is oriented so that common shark tooth shape cross section is anti- Direction.Especially, the bent portion of deflection division 582 compared with other described case study on implementation further backward.As illustrated, flexure Portion 582 is formed by the flexure parts 584 with the cross section for forming passage, but it is understood that, deflection division 582 can be with Formed with the structure of the one of bar bottom 586 of glof club head 580.It is remaining relative to glof club head by changing deflection division Partial direction, is applied to the pressure of deflection division and is applied with another optional direction, and the performance of deflection division is different, so that So that deflection division is actually harder.It therefore, it can adjust the deflection division of glof club head by changing direction.Deflection division Component 584 is bonded to the flange formed on the bar bottom 586 of glof club head 580, such as by welding, brazing filler metal, and/or uses Bonding agent.It is preferred that deflection division 582 is located in the striking surface about 20.0mm of pole face 588, more preferably at about 5.0mm and 20.0mm Between, and preferably there is thickness between about 0.35mm and 2.0mm.

As described above, the deflection division of the present invention provides local relatively low rigidity in a part for glof club head.It is logical Often, can by selecting the geometry of deflection division, such as by changing the shape and/or tranverse sectional thickness of the deflection division part, And/or obtain relatively low rigidity by selecting the material of deflection division part.It can select to provide relatively low stiffness deflection division Material includes the beta of low Young's modulus（β）Or nearly beta（Nearly β）Titanium alloy.

Beta-titanium alloy is preferably as they provide the material with relatively low Young's modulus.Propped up under the stress of application The amount of deflection held in the plate of its peripheral region is the function of the rigidity of plate.The rigidity of plate and Young's modulus and cube of thickness（That is t³）Directly It is connected into ratio.Therefore, when comparing two with identical thickness and different Young's modulus kinds of materials, apply in identical The material with relatively low Young's modulus will bend bigger under power.The amount of deflection of storage energy in the plate and plate is directly proportional, As long as the material is elastic characteristic, and once removes the stress of application, the energy of storage will discharge.Thus, it is desirable It is that use can bend material that is more and therefore storing more elastic energies.

Hit moreover it is preferred that the vibration frequency of Golf club face is matched with the vibration frequency of golf with maximizing The golf balls speed in the face is left after hitting.The vibration frequency of face depends on face parameter, the Young's modulus of such as material And Poisson's ratio, and face geometry.The alpha-beta（α‐β）Ti alloys generally have 105-120GPa mould Amount.On the contrary, the Young's modulus of current β-Ti alloys is 48-100GPa.

The material selection of glof club head must also consider the golf during the multiple impact with golf The durability of head.As a result, it is necessary to consider the fatigue life of the face, the fatigue life depends on the intensity of selected materials. Therefore, it is necessary to select the material of glof club head, the material provides the biggest ball speed of square stance, and there is sufficient intensity to carry For acceptable fatigue life.

The commonly provided low Young's modulus of β-Ti alloys, but generally along with the low strength of materials.It can generally be heat-treated β-Ti the alloys are to improve intensity, but heat treatment can generally also improve Young's modulus.However, it is possible to cold working β-Ti alloys with Intensity is improved, without significantly improving Young's modulus, because the alloy generally has body-centered cubic crystal structure, they generally may be used With depth cold working.

The material that intensity is about 900-1200MPa and Young's modulus is about 48-100GPa is preferred for the golf Club head part.For example, such material is preferred for the face and/or deflection division and/or deflection division of the glof club head Covering.Showing the material of the characteristic in the range of these includes commonly referred to as Gum Metals titanium alloy.

Although less preferably, connecing for intensity and Young's modulus can be obtained in the material using heat treatment to β-Ti The balance received.Application before beta-titanium alloy usually requires heat treatment to maximize the intensity of material, without controlling Young's modulus. When heated, titanium alloy undergoes the phase transformation by the opposite body-centered cubic β phases of hexagonal closs packing crystal structure α.When the phase transformation occurs Temperature is referred to as β-transition temperature.The alloying element being added in titanium typically exhibits the preference to stable alpha phase or β phases, and therefore Referred to as alpha stabilizers or β stabilizers.Can be by using the β stabilizer alloying titaniums of specified quantitative even if at room temperature also can be steady The fixed β phases.But, if such alloy to be again heated to the temperature of raising, less than β-transition temperature, the β phases such as thermodynamics is advised Decomposed as then determining and be changed into α phases.Those alloys are referred to as metastable β Titanium-alloy.

Although the law of thermodynamics only predicts the formation of α phases, in fact, occurring in that a large amount of non-equilibrium phases in β phase decompositions. These non-equilibrium phases are expressed as α ', α " and ω.It has been reported that these mutually each have different Young's modulus, and Young mould The amplitude of amount is typically compliant with β<α″<α<ω.It therefore, it can speculate, the intensity of β-titanium improved if necessary by heat treatment, favorably Be to be heat-treated in the way of so that the material includes α " as preferred catabolite, and we can eliminate or most The generation of smallization α and ω phases.By being quenched by the alpha+beta area of Phase Diagram of Materials to promote the generations of α " phases, it means that should by β- The alloy is quenched below transition temperature.It is therefore preferable that using being thermally treated to maximize the β-Ti alloys that are generated by β phases of α " A part for the glof club head.

The heat treatment method is selected to provide required phase transformation.Select thermal process variables such as maximum temperature, retention time, add Hot speed, quenching rate are to obtain material requested composition.In addition, heat treating process is specific to selected alloy, because different The effect of beta stable element be different.For example, the performance of Ti-Mo alloys is different from Ti-Nb alloys, or Ti-V alloys, or Ti-Cr alloys；Mo, Nb, V and Cr are β stabilizers, but with the different effect of degree.β-transformation of metastable β-Ti alloy Temperature range is about 700 DEG C to about 800 DEG C.Therefore, to such alloy, solution annealing temperature is big less than β-transition temperature About 25-50 degrees Celsius, in actual applications, the alloy will the solution annealing in the range of about 650 DEG C to about 750 DEG C. After water quenching, may at low temperature the aging β-Ti alloys further to improve intensity.The intensity of the material of solution annealing is measured It is about 650MPa, and the intensity of heat treatable alloy is 1050MPa.

The example of suitable beta-titanium alloy includes：Ti‐15Mo‐3Al、Ti‐15Mo‐3Nb‐0.3O、Ti‐15Mo‐5Zr‐3Al、 Ti‐13Mo‐7Zr‐3Fe、Ti‐13Mo、Ti‐12Mo‐6Zr‐2Fe、Ti‐Mo、Ti‐35Nb‐5Ta‐7Zr、Ti‐34Nb‐9Zr‐ 8Ta、Ti‐29Nb‐13Zr2Cr、Ti‐29Nb‐15Zr‐1.5Fe、Ti‐29Nb‐10Zr‐0.5Si、Ti‐29Nb‐10Zr‐0.5Fe‐ 0.5Cr、Ti‐29Nb‐18Zr‐Cr‐0.5Si、Ti‐29Nb‐13Ta‐4.6Zr、Ti‐Nb、Ti‐22V‐4Al、Ti‐15V‐6Cr‐ 4Al、Ti‐15V‐3Cr‐3Al‐3Sn、Ti‐13V‐11Cr、Ti‐10V‐2Fe‐3Al、Ti‐5Al‐5V‐5Mo‐3Cr、Ti‐3Al‐ 8V‐6Cr‐4Mo‐4‐Zr、Ti‐1.5Al‐5.5Fe‐6.8Mo、Ti‐13Cr‐1Fe‐3Al、Ti‐6.3Cr‐5.5Mo‐4.0Al‐ 0.2Si, Ti-Cr, Ti-Ta alloy, the Gum Metal class alloys represented by Ti+25 moles of % (Ta, Nb, V)+(Zr, Hf, O), example Such as Ti-36Nb-2Ta-3Zr-0.35O（By weight percentage）.Near β titanium alloy can include：SP-700, TIMET18 etc. Deng.

In general, it is preferred that the present invention glof club head pole face cup or face insert because of its high intensity by α- β or near β titanium alloy are constituted, such as Ti-64, Ti-17, ATI425, TIMET54, Ti-9, TIMET639, VL-Ti, KS ELF, SP- 700 etc..The rear portion of golf clubs main body, i.e., in addition to pole face cup, face insert, deflection division and deflection division covering Part, be preferably made up of α, alpha-beta or beta-titanium alloy, such as Ti-8Al-1V-1Mo, Ti-8Al-1Fe, Ti-5Al-1Sn-1Zr-1V- 0.8Mo, Ti-3Al-2.5Sn, Ti-3Al-2V, Ti-64 etc..

As it was previously stated, the deflection division may be constructed such that single component and be attached to club head body remaining Part.Formed for example, flexure assembly can be stamped and be forged by sheet material, the remainder of body is configured to one or more castings Component.Punching press flexure assembly is desirable after casting deflection division, because casting can introduce mechanical shortcoming.For example, Compared with forging the identical material of form, founding materials is generally amenable to relatively low mechanical performance.It is used as an example, titanium -64 Ti-64 about 10%-20% of the mechanical performance of cast form less than forging.Because the crystallite dimension of casting is significantly more than The crystallite dimension of forging form, and generally thinner crystallite dimension causes in the higher mechanical performance of metal material.

Further, titanium casting also forms referred to as " α housings（alpha case）" superficial layer, mainly have come from The region on the surface of the titanium of the α phases of the titanium rich in interstitial oxygen concentration.It itself is not harmful to be neutralized in α phases, but its answering in fatigue With often very rigid and frangible, the shock of golf such as repeatedly causes to be bent repeatedly, may be endangered under α housings And the durability of part.

Most of titanium alloys are hardly possible formation at room temperature.Therefore, titanium alloy must be heated to high temperature To be formed.The temperature for forming alloy usually requires the alloy depending on the composition of alloy, and with higher beta transus temperature Higher formation temperature.The mechanical performance for reduce when the material is cooled to environment temperature exposed to elevated temperature. In addition, causing the formation of oxide skin(coating) on the surface exposed to elevated temperature.The oxide skin(coating) and above-mentioned " α housings " are almost It is the same, material is deep into except it does not extend generally.If it is possible to reduce, to form temperature will be beneficial.

In general, if using Ti-64 as benchmark, because it is commonly used for metal die model glof club head, had The alloy for having the beta transus temperature less than Ti-64 will provide significant benefit.For example, a kind of such alloy is ATI425, it has There is the beta transus temperature in the range of about 957 ° -971 DEG C, and Ti-64 has about 995 DEG C of beta transus temperature.It therefore, it can pre- Material, ATI425 can at a lower temperature be formed than Ti-64.Because ATI425 has comparable with Ti-64 at room temperature Mechanical performance, it is anticipated that the bar bottom being made up of ATI425 alloys will be more stronger than the bar bottom manufactured by Ti-64.In addition, ATI425 generally has formability more more preferable than Ti-64, and therefore, in one example, deflection division is formed by ATI425 sheet materials, and And it is thinning by the section less than the deflection division formed by Ti-64 sheet materials is undergone.In addition, ATI425 can be by cold forming, this will Further result in stronger component.

In one example, the glof club head of many materials is made up of the component of Ti-64 and ATI425 constructions.Bag Including the main body of bizet, bar bottom or part bar bottom, shirt rim, hosel and pole face flange can be formed by Ti-64 castings.Then, bar bottom A part can be by being formed by the flexure parts of ATI425 sheet configurations, and the Ti-64 main bodys of casting are welded, such as in groove Or in groove, such as the structure as shown in Fig. 5,6.Take up the ball forging face insert be welded to casting Ti-64 pole face Flange, to complete glof club head.

The all parts of the glof club head of the various manufacture method construction present invention can be used.It is preferred that all parts are logical Cross and be welded to connect.The welding process can be manual, and such as TIG or MIG is welded, or they can be automation, such as laser, Plasma, electron beam, ion beam or its combination.Other companies can also be used if being desired or needed for because of material selection Connect method, such as soldering and adhesive bonding.

Punching press and the method for forming, casting method, method of molding and/or forging method can be used to manufacture the part.As used herein, forge It is that can cause the process of great change to the shape of sample to make, and such as starts from rod, and is converted into sheet material, and it is typically wrapped Include the change of size and dimension.In addition, forging is typically carried out at a higher temperature, and it may include the microcosmic knot in material The change of the change of structure, such as grain shape.Formed（forming）Usually it is used for describing material forming（shaped）Generally simultaneously The process of the size of reserved materials, such as starts from sheet material and shapes the sheet material without significantly changing its thickness.Here is to use The embodiment of the material selection of the golf club head of punching press and the method for forming point：

A) alpha-beta face member+β deflection divisions+alpha-beta Rear body

B) β face members+alpha-beta face insert+β deflection divisions+alpha-beta Rear body

C) β face members+alpha-beta face insert+β deflection division+β Rear bodies

D) β face members+alpha-beta face insert+β deflection divisions+alpha-beta Rear body（It is heat treated）

Here is the embodiment of the material selection using the golf club head point of cast part：

A) casting alpha-beta face member+casting β deflection divisions+casting alpha-beta Rear body

B) shaping alpha-beta face member+casting β deflection divisions+casting alpha-beta Rear body

C) shaping alpha-beta face member+casting β deflection divisions+shaping alpha-beta Rear body

D) casting alpha-beta face member+casting β deflection divisions+shaping alpha-beta Rear body

Here is the embodiment of the material selection using the golf club head point of forging part：

A) forging alpha-beta face member+casting β deflection divisions+casting alpha-beta Rear body

B) forging alpha-beta face member+casting β deflection divisions+shaping alpha-beta Rear body

The density of beta alloy is typically larger than the density of alpha-beta or α alloys.As a result, used in the different piece of glof club head Beta alloy will cause those parts to have bigger quality.Light weight alloy can be used for the rear portion of the main body so that overall golf Club head quality is kept within the required range, is about 170 grams to 210 grams such as to a wood-type golf clubs head.It can make With such as aluminium alloy, magnesium alloy, carbon fibre composite, carbon nano tube compound material, glass fiber compound material, reinforced plastics And the material of the combination of these materials.

Although described above is the various schemes of the present invention, it will be appreciated that the various features of each embodiment can be independent It is used in any combination using or with it.Therefore, the present invention is not limited only to specific preferred embodiment specifically described herein.This Outside, it will be appreciated that those skilled in the art of the present invention can be carried out in spirit and scope of the invention change and Improvement.For example, the thickness of the face insert can be changed with the continuation mode of stepping.In addition, the shape of groove is not limited with position Those disclosed in this article.Therefore, those skilled in the art are by disclosure described herein within the scope and spirit of All favourable improvement that content can be obtained easily are included as a further embodiment of the present invention.The scope of the present invention Therefore it is defined to scope described in appended claims.

Claims (20)

1. a kind of glof club head, it includes：

Limit the bizet of the upper surface of the glof club head；

Limit the bar bottom of the lower surface of the glof club head；

The side wall extended between the bizet and bar bottom；

Extended by the bizet and include the hosel in shaft hole；

Limit striking surface and the face intersected in edge with the lower surface；With

Deflection division, it is positioned backward from the striking surface, generally by the square upward and parallel to the Gao Er of heel to toe The leading edge extension of husband's club head,

Wherein described bar bottom is constructed by the first material with the first Young's modulus, and the deflection division is by with the second Young's modulus The second material construction, the second Young's modulus be less than the first Young's modulus,

The deflection division is wherein adjusted so that pole face is to crossing the width of deflection division in rear direction after shock immediately with 2900Hz Frequency sine to 4000Hz changes, and

A part for deflection division described in wherein at least is constructed by β-Ti alloys.

2. glof club head according to claim 1, wherein the deflection division is annular and the horizontal stroke with rectangle Cross sectional shape.

3. glof club head according to claim 1, wherein upper table of the deflection division from the glof club head It is recessed at least one in face and lower surface.

4. glof club head according to claim 1, wherein the deflection division in the face and the bizet and Transition is formed between at least one in bar bottom.

5. glof club head according to claim 1, wherein the deflection division includes multiple components.

6. glof club head according to claim 5, wherein the deflection division includes front part, intermediate member and rear structure Part, and wherein described intermediate member is constructed by the first material, at least one in the front part and rear part be by Constructed different from the second material of first material.

7. glof club head according to claim 6, wherein the front part and the rear part are metals.

8. glof club head according to claim 1, wherein the deflection division includes being connected to the golf clubs The forward flange of head and the flexure parts of rear flange.

9. glof club head according to claim 8, wherein the forward flange and the rear flange are from the bar bottom court The inside extension of the glof club head.

10. glof club head according to claim 8, wherein the deflection division component is from the forward flange and rear flange Extend towards the inside of the glof club head.

11. a kind of glof club head, it includes：

Limit the bizet of the upper surface of the glof club head；

Limit the bar bottom of the lower surface of the glof club head；

The side wall extended between the bizet and bar bottom；

Extended by the bizet and include the hosel in shaft hole；

Limit striking surface and the face intersected in edge with the lower surface；With

Deflection division, it is positioned backward from the striking surface, generally by the square upward and parallel to the Gao Er of heel to toe The leading edge extension of husband's club head,

Wherein described bar bottom is constructed by the first material with the first Young's modulus, and the deflection division is by with the second Young's modulus The second material construction, the second Young's modulus be less than the first Young's modulus,

The deflection division is wherein adjusted so that pole face is to crossing the width of deflection division in rear direction after shock immediately with 2900Hz Frequency sine to 4000Hz changes,

A part for deflection division described in wherein at least is constructed by β-Ti alloys, and

Wherein described deflection division is generally being crossed the body of rod apart from glof club head leading edge 5.0mm by heel to toe direction Extend in 20.0mm, and intersect with least a portion of the side wall of the glof club head.

12. glof club head according to claim 11, wherein the deflection division is annular and has rectangle Shape of cross section.

13. glof club head according to claim 11, wherein the deflection division is from the upper of the glof club head It is recessed at least one in surface and lower surface.

14. glof club head according to claim 11, wherein the deflection division is in the face and the bizet Transition is formed between at least one in bar bottom.

15. glof club head according to claim 11, wherein the deflection division includes multiple components.

16. glof club head according to claim 15, wherein the deflection division include front part, intermediate member and after Component, and wherein described intermediate member is constructed by the first material, and at least one in the front part and rear part is By the second material construction different from first material.

17. glof club head according to claim 16, wherein the front part and the rear part are metals.

18. glof club head according to claim 11, wherein the deflection division includes being connected to the golf The forward flange of head and the flexure parts of rear flange.

19. glof club head according to claim 18, wherein the forward flange and the rear flange are from the bar bottom Extend towards the inside of the glof club head.

20. glof club head according to claim 18, wherein the deflection division component is from the forward flange and rear method The blue inside towards the glof club head extends.