CN104043235B - Glof club head with bending section - Google Patents

Glof club head with bending section Download PDF

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Publication number
CN104043235B
CN104043235B CN201410098279.1A CN201410098279A CN104043235B CN 104043235 B CN104043235 B CN 104043235B CN 201410098279 A CN201410098279 A CN 201410098279A CN 104043235 B CN104043235 B CN 104043235B
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China
Prior art keywords
club head
bending section
glof club
face
thickness
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CN201410098279.1A
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CN104043235A (en
Inventor
托马斯·奥林·班尼特
斯蒂芬妮·贝济拉
理查德·L·克莱格霍恩
乌代·V·德神穆科
诺厄·德拉克鲁兹
达瑞尔·C·加尔文
查尔斯·E·戈尔登
玛尼·伊内丝
约翰·莫林
斯蒂芬·S·墨菲
马克·C·梅尔赫姆
盖瑞·兹梅尔曼
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Acushnet Co
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Acushnet Co
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Priority claimed from US13/844,954 external-priority patent/US8986133B2/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0445—Details of grooves or the like on the impact surface
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/52—Details or accessories of golf clubs, bats, rackets or the like with slits
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/32—Golf

Abstract

A kind of glof club head comprising crown, bottom, hosel, face and bending section.The bending section provides compliance in the impact process between glof club head and golf, and is adjusted to vibrate with scheduled frequency after just impacting.

Description

Glof club head with bending section
The related application of cross reference
The application is the part connecting case of the U.S. Patent application No.13/720885 submitted on December 19th, 2012, at present Unexamined co-pending, the U.S. Patent application No.13/720885 is the U.S. Patent application No.13/ that September in 2012 is submitted on the 14th 618963 part connecting case, and it is unexamined co-pending at present, and disclosure of which is incorporated herein by reference in the application.
Technical field
The present invention relates to a kind of improved glof club heads.More specifically, the present invention relates to a kind of with submissive portion Glof club head.
Background technology
The complexity of golf club design is well known.The each component of club is (that is, head, shaft, handle and its sub-portion Part) specification directly affect the performance of club.Therefore by changing design specification, golf club can be adjusted to have specific Performance characteristics.
The design of club head, which has been carried out, to study for a long period of time.What is more considered emphatically in club head design is loft, Pole base angle, face angle, horizontal plane protrusion, vertical plane roller, center of gravity (CG), inertia, material selection and whole nose heave amount.Although this Kind basic standard group is typically the focus of golf club engineering science, but other several design aspects must also solve.It can be with The interior design of club head is adjusted to realize specific characteristic, such as comprising in hosel or shaft accessories apparatus, club head Filler in perimeter weight and hollow club head.
Glof club head also must be secured, to be subjected to repeated touching between golf club and golf Impact during hitting.The load occurred during this momentary events will produce the peak force more than 2000 pounds.Therefore, one A main challenge is design face and the body of rod to prevent material yield or the caused permanent deformation of rupture or failure.By titanium system The conventional hollow metal rod made is typically with the face thickness for being more than 2.5mm, so that it is guaranteed that the structural intergrity of club head.
Player generally seeks the combination of aluminum medal wood and golf, hits maximum distance and landing is accurate.Ball is rushing The distance advanced after hitting is indicated by the translational velocity of ball and the rotary speed of ball or the size and Orientation of rotation.Environment Condition includes atmospheric pressure, humidity, temperature and wind speed, further affects the flight of ball.But these environmental activities are not by Gao Er The control of husband equipment manufacturing quotient.The accuracy of golf landing is also driven by many factors.Some in these factors are returned Because in the elasticity of club head design, such as center of gravity and face.
American Golf Association (USGA) is the responsible institution of U.S. Golf rule, which has for golf The specification of ball performance.These specifications define unified golf ball size and weight.One USGA rule is limited to rule The initial velocity of golf is 250 feet per seconds+2% (or maximum initial velocity of 255 feet per seconds) after fixed impact. In order to realize farther golf travel distance, the coefficient of resilience after ball speed and ball-club impact after impact must be maximum Change, while being maintained in this rule.
In general, golf travel distance is in the function with the total kinetic energy for assigning ball in club head impact process, ignore Environment influences.In impact process, kinetic energy shifts from club and is stored in club head as elastic strain energy and neutralizes as viscoelastic Strain energy is stored in ball.After the blow, the energy stored in ball and club is with the translation of ball and club and rotary speed Form be converted back into kinetic energy.Because collision is not perfectly elastic, therefore the energy dissipation of a part is in club head vibration and ball In the viscoelasticity relaxation of body.Viscoelasticity relaxation is the material property for the polymer material for being useful for manufacture golf.
The viscoelasticity relaxation of ball is a kind of additional-energy, depends on deformation rate.In order to make this effect minimize, it is necessary to Reduce deformation rate.This can be by allowing the more club facial disfigurements in impact process to realize.Because flow of metal can be with It is purely elastic, therefore the strain energy stored in face returns to ball after the blow, thus improves the output speed of ball after impact Degree.
Multiple technologies method can be used for change face deformation, including make face uniformly it is thinning, enclosed for thinning face Ribs and variable thickness etc..These designs should be subjected to impact repeatedly with enough structural integrities, and ball Pole face permanent will not deform.Usually after the blow, conventional club head also shows the significantly variation of original ball speed, this Depending on the impact position on the face of club.Therefore, this field still needs such club head, with larger " sweet tea Sweet area ", you can obtain the region of substantially homogeneous high original ball speed.
The breakthrough of technique in recent years provides farther distance for general golfer, such as by casting unification more Thin thickness of the shell and then use lighter material such as titanium, keep constant weight or it is even more light while manufacture bigger Club head.Equally, the face of club has constantly become very thin.Relatively thin face makes the coefficient of resilience (COR) maximize.It is rushing The face sprung back when hitting is bigger, and the energy for being applied to ball is bigger, thereby increases length.In order to enable face is thinner, manufacturer is Then forging, punching press or machined metal face, it is usually firmer than casting face.Normal practice will be forged by welding Or the metal covering of punching press is assembled on the bottom surface of head or head.Relatively thin face is easier to fail.The present invention provides a kind of new Mode has desired bending and rebound to provide the face of club in impact, so that COR is maximized.
Invention content
The present invention relates to a kind of glof club heads including bending section, for known glof club head Change compliant characteristic.
In one embodiment, glof club head includes crown, bottom, side wall, hosel knead dough.Crown is defined as height The upper surface of golf ball head, bottom are defined as the lower surface of glof club head, and side wall is extended between crown and bottom. The bottom includes emission part, bending section and rear portion.The face is defined as the surface of ball impact and with emission part in edge phase It hands over.The bending section is spaced apart with ball striking face in tail portion by emission part.The bending section include antetheca (its extend to by In the chamber that the glof club head defines), extend to rear wall in the chamber, and the antetheca and rear wall are in apex Connection.The bending section is with the 20%-50% that ball striking face spacing distance is CG-Z-fc distances, the CG-Z-fc distances Before slave glof club head along the horizontal Z axis between the geometric surface center of glof club head and gravity center of golf club head Portion extends to the distance of tail portion.
Description of the drawings
Currently preferred feature discloses in the accompanying drawings, wherein identical reference numeral indicates identical in all the appended drawings Element, wherein：
Fig. 1 is a kind of side view of embodiment of glof club head of the present invention；
Fig. 2 is the plan view of the bottom of the glof club head of Fig. 1；
Fig. 3 is cross-sectional view, corresponds to the line 3-3 of Fig. 2；
Fig. 4 is the cross-sectional view of the golf club head point of Fig. 1, is shown in figure 3 as thin portion A；
Fig. 5 is the perspective view of the golf club head point of an alternate embodiment of the present invention；
Fig. 6 is cross-sectional view, corresponds to the line 6-6 of Fig. 5.
Fig. 7 is the side view of the glof club head of an alternate embodiment of the present invention；
Fig. 8 is the side view of the other side of the glof club head of Fig. 7；
Fig. 9 is the side view of the glof club head of an alternate embodiment of the present invention；
Figure 10 is the side view of the other side of the glof club head of Fig. 9；
Figure 11 is the side view of the glof club head of an alternate embodiment of the present invention；
Figure 12 is the bottom plan view of the glof club head of Figure 11；
Figure 13 is cross-sectional view, corresponds to the line 13-13 of Figure 12；
Figure 14 is the side view of the glof club head of an alternate embodiment of the present invention；
Figure 15 is the bottom plan view of the glof club head of Figure 14；
Figure 16 is the perspective view of the glof club head of an alternate embodiment of the present invention；
Figure 17 is the exploded view of the golf club of Figure 16；
Figure 18 is the cross-sectional view of the golf club of Figure 16；
Figure 19 is the cross-sectional view of the selectable construction of glof club head of Figure 16；
Figure 20 is the perspective view of the glof club head of an alternate embodiment of the present invention；
Figure 21 is the exploded view of the glof club head of Figure 20；
Figure 22 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 23 is a kind of perspective view of the glof club head of embodiment of the present invention；
Figure 24 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 25 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 26 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 27 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 28 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 29 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 30 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 31 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 32 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 33 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 34 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 35 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 36 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 37 is the cross-sectional view of the golf club head point of an alternate embodiment of the present invention；
Figure 38 is the upward view of the glof club head of an alternate embodiment of the present invention；
Figure 39 is the side view of the glof club head of Figure 38；
Figure 40 is the glof club head of Figure 38 along the cross-sectional view acquired by line 40-40；
Figure 41 is the front view of the glof club head of one embodiment of this invention；
Figure 42 is the side view of the glof club head of Figure 41；
Figure 43 is the glof club head of Figure 41 along the cross-sectional view acquired by line 43-43；
Figure 44 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 45 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 46 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 47 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 48 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 49 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 50 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 51 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 52 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 53 is a kind of cross-sectional view of the golf club head point of embodiment of the present invention；
Figure 54 is the cross-sectional view of the golf club head point of an alternate embodiment of the present invention；
Figure 55 is a kind of cross-sectional view of the glof club head of embodiment of the present invention；
Figure 56 is the upward view of the glof club head of Figure 55；
Figure 57 is the upward view of the glof club head of an alternate embodiment of the present invention；
Figure 58 is the front view of glof club head, and which show dimensional characteristic and coordinate systems used in it；
Figure 59 is the vertical view of the golf club of Figure 58；With
Figure 60 is the cross-sectional view of the golf club head point of Figure 58.
Specific implementation mode
In addition in the operation embodiment, or unless otherwise expressly provided, otherwise whole digital scopes, amount, value and hundred Point ratio, such as material, moment of inertia, position of centre of gravity, loft and shaft angle and specification with its in lower part His magnitude can be read as using wording " about " as prefix, though term " about " not with the value, amount or range one It rises and occurs being also such.Therefore, unless the contrary indication, otherwise explained in the following specification and appended claims The digital parameters stated are approximate, can be changed according to the desired performance obtained sought by the present invention.At least, it not beats It calculates and limits the scope of the claims using doctrine of equivalents, each digital parameters should be at least according to the effective digital recorded It numerical value and is explained by using the common method to round up.
Although the present invention be set as the digital scope of wide scope and parameter be it is approximate, it is described in a particular embodiment Numerical value be reported as precisely as possible to report.But all numerical value substantially contain and exist in their own test measurement The error that is necessarily formed of standard deviation.In addition, when illustrating the digital scope of different range herein, it is contemplated that can To use the arbitrary combination including these values in the value enumerated.
The coefficient of resilience or " COR " are the measurements of collision rate.COR is the ratio between separating rate and closing speed.As one Example, such as impact is left for the golf of golf tee, COR can be determined using following formula：
(MBall(VAfter ball--VBall-is preceding)+MClub(VAfter ball--VClub-is preceding))/MClub(VClub-is preceding-VBall-is preceding)
Here,
VAfter club-Represent the speed of club after the blow；
VAfter ball-Represent the speed of ball after the blow；
VClub-is precedingRepresent the speed (being zero for USGA COR conditions) of club before impingement；With
VBall-is precedingRepresent the speed of ball before impingement.
Because the initial velocity of ball is 0.0 in collision process, because it is fixed on golf tee, therefore should Formula is simplified to following：
(MBallVAfter ball-+MClub(VAfter ball-- VClub-is preceding))/MClub(VClub-is preceding)
COR generally depends on the shape and material property of collision body.The COR of best elastic impact is one (1.0), this table Show no energy loss, and the COR of best nonelastic or best plasticity impact is zero (0.0), this indicates that collision body exists It is not separated by after producing the impact of maximum energy loss.Therefore, high COR values show the ball speed and distance of bigger.
Referring to Fig. 1-4, a kind of embodiment of the glof club head 10 of the present invention is shown.Club head 10 includes in this way Construction, with an improved when by golf impact, when especially lower part is hit face to face, the behavior of club.Club First 10 be hollow body comprising crown 12, bottom 14, skirt section 16 or side wall, face 18 and hosel 22, the side wall is in crown Extend between 12 and bottom 14, the face 18 provides 20 hosel of ball striking face.It should be understood that skirt section 16 can include The peripheral portion of crown 12 and bottom 14, the upper and lower surface that they are bent to form glof club head towards each other it Between transition.The hollow body defines inner cavity chamber 24, can be vacant or can be by the filling of its part.If it is to be filled out It fills, then preferred inner cavity chamber 24 is filled with foam or other low specific gravity material.In addition, glof club head 10 includes at least A kind of weight installing component 34, so that the overall weight of glof club head can change and/or therefore position of centre of gravity can be with Change, and any number of weight installing component may include on any position on glof club head.
When club head 10 is in address position, crown 12 provides the upper surface of glof club head and bottom 14 and provides The lower surface of glof club head.Skirt section 16 extends between crown 12 and bottom 14, and forms the periphery of club head.Face 18 provide near preceding ball striking face 20 and include being connected to the periphery of crown 12, bottom 14 and skirt section 16 to carry out closing chamber Room 24.Face 18 includes toe 26 and heel 28 on 18 geometric center offside of face.Hosel 22 is from the heel 28 of vicinal face 18 Crown 12 and skirt section 16 extend outwardly and provide the connection structure for golf club shaft (not shown).
Hosel 22 can have through-hole or blind hole hosel to construct.Specifically, hosel 22 is typically tubular element, and it Can be extended through from crown 12 chamber 24 to club head 10 the bottom of bottom 14 or it can terminate in crown 12 and bottom Position between portion 14.In addition, the proximal end of hosel 22 can terminate in that concordant with crown 12, rather than as illustrated in fig. 1 and 2 Sample extends outwardly beyond crown 12 from club head.
Inner cavity chamber 24 can have any volume, it is preferred that it is more than 100 cubic centimetres, and the glof club head can It is constructed with mixing, alley or wood-type.It is preferred that the quality of the club head 10 of the present invention is greater than about 150g, but it is small In about 220g, although club head can have any suitable weight for given length, come provide desired overall weight and Swing weight.The rod head body can be formed by punching press, forging, casting and/or moulding part, by welding, soldering and/or It is adhered to each other.Glof club head 10 can be by titanium alloy, any other suitable material or combination of different materials object And it constitutes.In addition, the weight element that high-density matter such as tungsten is constituted may be coupled to any part example of glof club head Such as bottom.
Face 18 may include that face insert 30 is combined with face periphery 32, such as face-flange.Face periphery 32 defines Opening for receiving face insert 30.Face insert 30 is preferably connected by welding on periphery 32.Such as multiple chads or lappet (not shown) can be used for forming support for positioning face insert 30, or face insert can be tack welded to suitable position, Then face insert 30 and periphery 32 can pass through laser or the whole combination of plasma welding.Face insert 30 can be by any conjunction Suitable material such as such as titanium, titanium alloy, carbon steel, stainless steel, beryllium copper and carbon fibre composite and combination thereof are by grinding Mill, casting, forging stamped and shaped are made.Furthermore, it is possible to be respectively formed crown 12 or bottom 14, and connect Onto the other parts of the rod head body.
The thickness of face insert 30 is preferably from about 0.5mm-4.0mm.In addition, inserts 30 can be uniform thickness or can thicken Degree.Such as face insert 30 can have thicker center and relatively thin external zones.In an alternate embodiment, face insert 30 can have two or more different thickness, and the transition between thickness can be radioactive or gradually. Selectable, face insert 30 can be increased or decreased towards toe 26, heel 28, crown 12 and/or 14 thickness of bottom.It can manage Xie Wei, one or both of the striking face of the ball in face 18 or rear surface can have at least partly be curve, ladder or Flat, and change the thickness of face insert 30.
As described above, club head 10 includes construction, when hitting golf, especially in the lower impact Gao Er in face When husband's ball, the behavior of club is improved.Bending section 36 is formed in the forward part in crown, bottom and/or skirt section.It is curved Pars convoluta 36 is the fold of an elongation, is usually upwardly extended in heel to toe side, and in the forward part of bottom 14 Middle formation.
Bending section 36 usually in forward/backward direction on be flexible, and provide in the club head 10 far from face 18 soft Property part so that other than local buckling, when golf is impacted in face 18, it allow at least be with the face 18 of a part Unit translates and rotation.By the golf club head design be tool there are two types of it is visibly different about 3000Hz-6000Hz it Between face vibration mode, and bending section is usually configured to second of increase face different vibration mode.First surface vibration During pattern is mainly included in golf impact median plane, the local buckling in face.The deflected profile of second surface vibration pattern is logical Often include similar to accordion entire surface flexure, and provide between the face of improving and golf from centric(al) impact Performance.
In general, bending section 36 is also configured to keep the rigidity of the bottom 14 in crown/bottom direction, so that golf The sound of club head is not significantly affected.In general, lower rigidity of the bottom in crown/bottom direction can make club head institute The tone of the sound of generation reduces, and is usually not intended to reduce the tone.
Compared to other methods, bending section 36 allows the size and/or shape for not changing face 18, and makes the front of club (including face 18) is bent.Specifically, the glof club head body of a part for vicinal face is designed as in impact process elastic Bending.The elasticity reduces the reduction of ball speed, and reduces reverse, and otherwise experience is located at less than fluid shock position by it Pellet impact.Ideal impact position is such position on ball striking face, and the axis orthogonal with ball striking face intersects, and And it extends through the center of gravity of the glof club head, and as a result fluid shock position be usually located at geometric surface center it In the distance of upper about 0.5mm-5.0mm.By providing bending section 36 in bottom 14, close to face 18, face to face 18 less than When impacting golf at the position of fluid shock position, the club head reduces the reduction of ball speed, and reduces reverse.Cause This will be compared identical swing characteristic in ideal impact position and in the club head downstream of the present invention by the ball impacted The ball impacted in uniform impingement position by conventional club head is advanced farther.It is special that bending section 36, which is arranged in bottom 14, It is not beneficial, because fluid shock position is usually above the position at the geometric surface center of the golf club of metal wood type.Institute With most face region is usually located at fluid shock position or less.In addition, golf player normally tends to use face downstream Strike golf.However, similar effect, provides the club head 10 with bending section, the bending section is in club head 10 In other parts, it is used to make impact from geometric surface center towards bending section.Such as the bending section with configuration in crown Club can improve the impact property of ball, and the impact of the ball is between crown and geometric surface center.
In one embodiment, bending section 36, the substantially leading edge at least part of club head 10 are provided 38 is parallel, so that it is usually bent with leading edge, and described in being provided on selected distance D since ball striking face 20 Bending section 36.It is preferred that providing bending section 36 on distance D in the 30mm apart from ball striking face 20, more preferably hit apart from ball It beats in the 20mm on surface 20, and more preferably distance about 5.0mm-20.0mm.For smaller glof club head, such as use alley Those of rod or combination construction glof club head preferably provide bending section in the 10mm apart from ball striking face 20 36。
Bending section 36 is made of first element 40 and second element 42.First element 40 is connected to the forward hair of bottom 14 It penetrates in the back edge in portion 46, and is bent in inner cavity chamber 24 from bottom 14.Second element 42 is connected to the portion of bottom 14 rearward On the leading edge divided, and also bent in inner cavity chamber 24 from bottom 14.The first element 40 and second being spaced apart with bottom 14 The end of element 42 connects at vertex 44 each other.It is preferred that the bending section be on the direction of common heel to toe elongation and Extend.
The size of bending section 36 is selected to provide desired flexibility during pellet impact.Bending section 36 have height H, Width W and crimped length C, as shown in Figure 4.Height H extends between the vertex 44 of bottom 14 and outer surface in the Y-axis direction. Width W is the width of bottom split shed, is generated by bending section 36, and in the Z-axis direction in bending section 36 and bottom 14 Extend between binding site.Crimped length C extends in the Z-axis direction, and in bending section 36 and the forward binding site in bottom 14 and Extend between its binding site forward with vertex 44.It is preferred that the height of bending section 36 is more than 4.0mm, preferably from about 5.0mm- 15.0mm, even more preferably about 6.0mm-11.0mm.In addition, 36 preferable width of bending section is more than 4.0mm, preferably from about 5.0mm- 12.0mm, even more preferably about 7.0-11.0mm.The bending section also has the wall thickness of about 0.8mm-2.0mm, and these sizes are excellent It is selected at least 25% length of the entire club head along the length of X- axis and extends.In addition, first element 40 is inside from bottom It is bent into inner cavity chamber, and its preferred radius of curvature is about 20.0mm-45.0mm.The following table 1 shows the ruler of the embodiment of the present invention It is very little, more effective energy transfer is provided for the pellet impact less than the ideal impact position of glof club head, and therefore more High COR.
Table 1：Bending section size
Highly [mm] Width [mm] Crimped length [mm]
The embodiment of the present invention 1 10.0 10 13
The embodiment of the present invention 2 6.5 10 13
The embodiment of the present invention 3 10.0 8 13
The embodiment of the present invention 4 6.5 8 13
The embodiment of the present invention 5 5.0 8 13
Embodiments of the invention described above are to analyze the determining COR for glof club head using finite element analysis and shake The effect of dynamic response.Specifically, the club head (that is, benchmark) of not bending section and the embodiment of the present invention are compared.Table 2 converges Total comparison.
Table 2：Comparison
In above-mentioned table, " additional mode " refers to a kind of vibration shape or eigentone, unless there are bending section, Otherwise it is not present " additional mode ".Usual additional mode is rendered as facial split-phase and the other parts of golf club is revolved Turn and bends.Specifically, the embodiment of the present invention includes bending section, the bottom of a part is extended past, and described additional Pattern includes the rotation at interface of the face between face and crown, so that bending section is bent.Bending section is adjusted, so that additional mould Formula occurs in the frequency of about 2900Hz-4000Hz, and more preferably occurs in the frequency of about 3600Hz, which is through analysis It is most effective in terms of improving ball speed after the blow.In fact, the moment after impact, the adjusting result in the width W of bending section Changed with the frequency sine of about 2900Hz-4000Hz.If additional mode is in the frequency generation higher or lower than the range, in fact Ball speed can be less than benchmark embodiment on border (it does not include bending section).The embodiment of the present invention 1 is analyzed using FEA, is determined Adjust bending section come provide frequency be less than 2900Hz, especially for about 2157Hz additional mode when, so that ball speed is fallen below The glof club head of benchmark (it does not include bending section).In addition, providing such golf club including bending section really up to the mark Head does not include additional mode, as shown in the embodiment of the present invention 5, and is provided solely for ball speed minimum after the blow and increases.
The emission part 46 of bottom 14 extends between bending section 36 and leading edge 38.Emission part 46 is preferably structured such that Gao Er Husband's pellet impact power is transferred to bending section 18, and 46 unobvious of emission part are bent.Such as emission part is oriented, so that it is not It is also easy to produce very much bending.Specifically, with the 46 center tangent of emission part of bottom 14 (in the direction of both head/tail and heel/toe On) the plane of departure relative to the angle of ground level be angle [alpha].Glof club head when angle [alpha] preferably lower than or equal to addresses Loft so that the angle between the surface of emission and ball striking face is usually equal to or less than 90 °, so that emission part 46 It may be less likely to be bent during pellet impact.
Bending section 36 can be constituted by any suitable means.Such as bending section 36 can be as the integrated portion of bottom 14 Divide to cast.Selectable, bending section 36 with punching press or can be forged into bottom part.In addition, the bending section can be by including Region and the machined recess thickened is so that the thickened areas forms bending section to constitute.It is, for example, possible to use spin finishing Method provides desired groove, and rotary grinding method is public in the United States Patent (USP) No.8240021 announced on the 14th of August in 2012 Description is opened, the groove in face is such as administered to, but this method can be used, by increasing rotating polishing tool size and changing cutter Profile machine the bending section with desired profile.In general, the method use the tool with rotary shaft, it is parallel In bottom, and perpendicular to the leading edge of glof club head and cut end, contoured generates the desired profile in bending section.So The tool is moved along cutting path afterwards, is typically parallel to leading edge movement.As option another in greater detail later, Individual bending section component can be increased to the bending section of bottom further to adjust the bending section of bottom, such as Figures 5 and 6 institute Show.
As shown in the embodiment of figure 1, the face of the glof club head may include face insert, and the inserts individually passes through Punching press, forging and/or machining are crossed, and is connected on glof club head body.Selectable, entire surface can be used as uniform A part for shell come punching press, forging either casting as it can be seen in figures 5 and 6, therefore without individual face insert being combined or permanently Be fixed to the body on.As further selection, face can be a part for the face component of punching press or forging, example Such as face cup comprising the part of bottom, crown and/or skirt section.In such a embodiment, face component is connected to club head Body is on the rest part of about 0.2 inch -1.5 inches of facial plane.It is preferred that the face component includes the emission part of bottom, extend Include emission part to bending section or the face component also including bending section.
In an alternate embodiment, as it can be seen in figures 5 and 6, glof club head 60 is hollow body comprising crown 62, bottom 64, the skirt section 66 extended between crown 62 and bottom 64, face 68 (it provides ball striking face 70) and hosel 69.The hollow body defines inner cavity chamber 74, can be it is vacant or can be complete or partial be filled.
Bending section 76 is to be formed in the forward part in bottom, but it can be optionally in crown and/or skirt section It is formed.It is preferred that bending section 76 is extended fold, usually it is upwardly extended in the side of heel to toe, and in golf club The bottom 64 of first 60 body is formed in forward part.Bending section 76 is provided from the flexible part in the club head 60 backward of face 68 Point so that face to face 68 impact golf when, in addition to having flexibility, can be translated as unit of at least part of face 68 or Rotation.
Compared to other methods, bending section 76 allows the size and/or shape for not changing face 68, and makes the front of club (including face 68) is bent.The flexibility makes the reduction of ball speed reduce, and otherwise will undergo mistakenly hit, that is, pellet impact position is far from ideal Impact position, and it is less for being rotated less than the impact of fluid shock position.Such as the bending by being provided in bottom 64 Portion 76, close to face 68, club head makes ball speed reduce reduction when pellet impact position is less than the position of fluid shock position.Cause This during use, for identical swing characteristic, the present invention club head face downstream by the ball impacted It is farther by advancing than the ball that uniform impingement position is hit on the face of conventional club head.
In one embodiment, the setting of bending section 76 makes its at least part substantially with 60 leading edge 78 of club head It is parallel, and be arranged in a certain distance D apart from ball striking face 70.It is preferred that the distance in the 30mm of ball striking face 70 Bending section 76 is provided on D, more preferably in the 20mm of ball striking face 70 and most preferably in 10mm.
In embodiments of the invention, bending section 76 is made of first element 80, second element 82 and third element 83, And it is generally configured the individual component being connected on bottom 64.First element 80 is connected to the forward emission part 65 in bottom 64 Back edge on, and bent into inner cavity chamber 74 from emission part 65.Second element 82 is connected to the front of the part rearward of bottom 64 On edge, and also it is bent into inner cavity chamber 74 from bottom 64.(it is spaced with bottom 64 for the end of first element 80 and second element 82 Open) it is connected to each other at vertex 84.It is preferred that the bending section extends and extends on the direction usually by heel to toe.Bending section 76 can use machanical fastener combine, weld or be connected on bottom 64, and the material of bending section 76 can be selected from have The material of a variety of density, Young's modulus and size, to provide multiple bending sections with different quality and rigidity.In addition, will Bending section is configured to individual component, and allows to repair the bending section of damage by replacing bending section, and allows bending section It is built different from the method for glof club head rest part, such as by structure of casting by forging builds the bending section Build the rest part of glof club head.
Similar to the embodiment of front, the size of bending section 76 is selected, to provide the desired elasticity of response pellet impact Bending.Bending section 76 defines height H, width W and crimped length C.It is preferred that the height of bending section 76 is more than 4mm, preferably from about 5mm-15mm, and width is more than 4mm, preferably from about 5mm-10mm, and wall thickness is about 0.8mm-2.0mm, and those sizes It is preferred that extending at least 25% length of the entire club head along the length of X-axis.
Bending section 76 includes third element 83, can be used for adjusting the flexibility of bending section 76.It can be by third element 83 It is connected to inner surface (as shown) or the outer surface of bending section 76, and locally increases the rigidity of bending section 76.Third member Part 83 preferably consists of such materials, the proportion of the material at least below first element 80 and second element 82 wherein it One.Third element 83 can be for example attached to using binder, such as by fastener mechanical bond, be welded or soldered to First element 80 and second element 82.Third element can be made of any metal material or nonmetallic materials, the metal material Expect such as aluminium, the nonmetallic materials such as carbon fibre composite or polyurethane.
Position, size and the number of the bending section in glof club head can be selected to provide desired behavior.Such as May include multiple bending sections, as shown in the glof club head 90 of Fig. 7 and 8.Glof club head 90 has hollow body structure It makes, is usually defined by bottom 92, crown 94, skirt section 96, face 98 and hosel 100.Before crown bending section 102 is located at crown 94 In portion, bottom bend portion 104 is located in the front of bottom 92.102, the 104 preferred forming of each bending section and size are turned to as preceding The bending section stated is such.
In other embodiments, it may include such bending section, be looped around the glof club head body of a part Surrounding is looped around around entire glof club head body.As shown in Figures 9 and 10, glof club head 110 has hollow body Construction, is defined by bottom 112, crown 114, skirt section 116, face 118 and hosel 120.Bending section 122 is before glof club head Formed in portion, and glof club head peripheral ring around.Bending section 122 is usually in the face for being parallel to glof club head 110 It is formed in the plane of plane.The distance between 122 knead dough 118 of bending section can change along its length, to adjust local effect It answers, that is, bending section 122 provides flexibility for the glof club head.Such as some portion of bending section 122 can be compared to other portions Divide farther apart from face 118.As shown, in one embodiment, the heel and toe of bending section 122 are relative to bending section 122 bottom and crown partial distance face 118 are farther.In addition it is also possible to change the size of bending section 122 to adjust bending section 122 are supplied to glof club head local effect flexible.As shown, the bending section 122 of part can have different Highly, width and/or crimped length, to change the behavior of 122 part of bending section.
In a further embodiment, submissive bending section can be combined with mixing material, light density cladding element, such as schemes Shown in 11-13.Such as glof club head 130 usually has hollow body construction, passes through bottom 132, crown 134, skirt section 136, face 138 and hosel 140 define.Glof club head 130 further includes bending section 142, in glof club head 130 It is formed in the front of bottom 132.Covering 144 is also included in glof club head 130, and it is configured to covering bending section Outer surface.
Covering 144 is typically a strip material, and base closed bending section 142 is arranged to across bending section 142.It can incite somebody to action Covering 144 is sizing, so that it covers some or all of bending section 142, and it extends to golf In the not part including bending section of head 130.Such as shown in FIG. 11 and 12, covering 144 is extended across positioned at bottom 132 On bending section 142 and covered.In addition, covering 144 forms skirt section 136 and the crown 134 of a part.It is preferred that covering Cover material 144 consists of such materials, different from bottom 132, the material of crown 134 and skirt section 136.Covering 144 passes through It welds, be brazed or adhere to and be thus connected on those adjacent parts on the adjacent part of glof club head 130.It is preferred that The bending section and covering are made of titanium alloy such as beta-titanium alloy, and width is about 2.0mm-20.0mm and thickness is about 0.35mm-2.0mm。
For helping to control the address position of glof club head when bottom is placed on match ground and eliminating bending section Both undesirable aesthetic appearances covering is all helpful.Specifically, the covering can be by changing Gao Er The contact surface of husband's club head and adjust the glof club head head be placed in match ground on when visual face angle degree.It is described to cover Cover material is configurable to surround on glof club head periphery to crown, and it is low that the periphery material of a part can be replaced to generate The structure of density body, to provide other customized quality, lower and/or deeper position of centre of gravity and higher inertia Torque, therefore improve performance and apart from potentiality.
Effectively, covering provides crown compliance and bending section provides bottom compliance.Alternatively, Can by covering from bending section remove so that it only provided in glof club head is far from the part of bottom it is submissive Property.In such embodiments, the size of component is preferably in the range described in Figure 11-13.
4 and 15 glof club head 150 is described referring now to fig. 1 comprising bending section 162, the bending section is along Gao Er The variation of spatial relationship has occurred to toe length and facial plane for the heel of husband's club head.Due to during pellet impact, Gao Er The geometry of husband's club head combines the circular shape for being applied to the stress on face, and toe is usually arrived in the lower part in face in heel It experienced different magnitude of stress on different positions.Usual glof club head is undergone in the part of heel and toe end More lower than part of the golf club directly below the geometric center of face stress, and stress gradient is transferred to bending section The stress on bottom in 162 regions.Change bending section relative to facial plane and/or the up-front position in face/bottom crosspoint, To correspond to the relative quantity of the stress at different piece.Such as the heel and toe of bending section are preferably closer to facial plane and height Golf ball head leading edge, so that those parts are more likely to experience bending, or even under lower stress condition, especially inclined It is also such in the impact process of excentric ball.
Glof club head 150 is constructed with hollow body, by bottom 152, crown 154, skirt section 156, face 158 and is inserted Sheath 160 defines.Bending section 162 is formed in the front of glof club head, and generally along the golf club Head extends up through bottom and skirt section in heel to toe side.Bending section 162 generally includes central part 164,166 and of toe Heel 168.As described above, the part of bending section 162 is arranged with the various spatial relationships relative to head facial plane, so that Central part 164 from head facial plane more rearward compared to toe 166 and heel 168.In addition, bending section 162 includes heel With the extension 170,172 of toe, they extend back from heel and toe 168,166 respectively along skirt section 156.Heel and toe Extension 170,172 can also extend back and converge on some of skirt section or bottom positions.
In a further embodiment, bending section is mainly provided by the construction of mixing material.It is high referring to Figure 16-18 Golf ball head 180 usually has hollow body construction, passes through bottom 182, crown 184, skirt section 186, face 188 and hosel 190 It defines, and includes bending section 192.Bending section 192 is included in the front of glof club head 180, and can conduct Tubular element is built, as shown, it places it between face part 194 and opisthosoma point 196, so that 192 shape of bending section At intermediate ring.Select the rigidity of the ring so that club head face can correspondingly occur with the flexure locally occurred in shock point Whole flexure.It is similar to the previous embodiment, adjusts bending section 192 so that impact imparts and is about along the frequency of bending section The vibration of 2900Hz-4000Hz.As additional means, select the performance of the ring come when controlling and optimize COR and matching characteristic Between (CT), the value along face, be particularly directed to far from the pellet impact at fluid shock position.
Bending section 192 consists of such materials, and provides 194 adjacent part of specific surface part and opisthosoma point 196 more Low Young's modulus.It is preferred that bending section 192, face part 194 and opisthosoma divide 196 to be to consist of such materials, it being capable of example Such as readily combined by welding.Such as face part 194 and opisthosoma point 196 are preferably made of the first titanium alloy, and bending Portion 192 is made of beta-titanium alloy, as described in more detail below.As shown in figure 18, bending section 192 may be configured so that its Thickness is substantially equal to the thickness of adjacent part and makes the flush with outer surface of the outer surface and adjacent part of bending section.It may be selected , as shown in figure 19, bending section 192a may be configured so that thickness is different from adjacent part and so that bending section 192a's is outer Surface is recessed compared to adjacent part.As another option, which may be configured so that the outer surface of bending section Compared to adjacent part protrusion or increase.
It is selectable, carbon composite cyclization can be incorporated to bending section 192, provide lower rigidity.Connector Construction, the geometry (such as ring width and thickness, can change with its position in ring) of ring, ring position, fiber Orientation, resin type and resin content percentage are whole parameters, select these parameters to optimize the flexibility of bending section 192, So that the ball speed of output is improved with the club head face of rod, while keeping the durability of the glof club head.It is preferred that Carbon composite bending section is attached on adjacent metal club head face part and adjacent metal opisthosoma point.As an example, The ring width of the bending section can be about 12.0mm-20.0mm and thickness is about 0.5mm-3.0mm, and thickness can be according to week Side position and change.
The bending section of mixing material is incorporated into the glof club head of Figure 20 and 21.Glof club head 200 includes curved Pars convoluta 202 depends on material property to change rigidity, is similar to bending section 192, but which incorporates mixing material structures It makes.Glof club head 200 is generally configured hollow body, divides 206 to determine by face part 204, bending section 202 and opisthosoma Justice.When part 204, bending section 202 and opisthosoma divide 206 combination face to face, they are usually formed face 208, crown 210, bottom 212, skirt section 214 and hosel 216.
Bending section 202 includes front elements 218, Central element 220 and posterior elements 222.It is preferred that material is selected, So that front elements 218 and posterior elements 222 are easily incorporated on face part 204 and opisthosoma point 206, and make middle part Element 220 is sufficiently thin and flexible, to provide the additional vibratory mode frequency for being about 2900Hz-4000Hz.In one kind In embodiment, front elements 218 and posterior elements 222 are that metal and Central element 220 are placed in front elements 218 with after Between portion's element 222, and it is made of carbon fibre composite.It is preferred that posterior elements 222 and face 208 and front elements 218 it Between interface be spaced at least 6.0mm and more preferably at least 12.0mm.Hosel 216 can be by metal and/or nonmetallic materials structure At.In one embodiment, face part 204 and opisthosoma point 206 are made of titanium alloy, front elements 218 and posterior elements 222 are made of the non-titanium material of low-density and preferred low modulus, such as aluminium or magnesium alloy, and Central element 220 is by sufficiently thin It is constituted with carbon fibre composite flexible, to provide desired frequency response.In addition, front elements and/or rear portion member Part can be co-molded with composite material Central element.In general, selecting to be provided enough between the component that uses in usually practice Bond strength material, such as binder.
The glof club head of the present invention can also include extending along the interface between glof club head knead dough rear portion Bending section, as depicted in figures 22 and 23.Glof club head 230 usually has hollow body construction, passes through bottom 232, crown 234, skirt section 236, face 238 and hosel 240 define, and include bending section 242.Bending section 242 is included in golf club In first 230 front, and it is placed between face 238 and bottom 232, crown 234 and skirt section 236.
The bending section makes face correspond in the local buckling that shock point occurs and entirety with seleced rigidity Flexure.Similar to the embodiment of front, bending section 242 is adjusted so that impact is imparted is about along bending section frequency The vibration of 2900Hz-4000Hz.As another means, selects the Properties Control of the ring and optimize COR and corresponding feature Time (CT), the value along club head face, especially far from the pellet impact at fluid shock position.
Bending section 242 is usually located at around the periphery in face 238, and makes it along transition curvature from glof club head 230 club head face extends to rear portion such as bottom 232, crown 234 and the skirt section 236 of the glof club head.Bending section 242 can To be as shown discontinuous, so that the hosel part of the glof club head is separated.Bending section 242 is in flange Place terminates, and provides the connecting component for being installed to bending section 242 in glof club head 230.The enlightenment that should be obtained, Bonded block surface can be used for forming banjo fixing butt jointing, lap joint, matching joint head etc..Bending section 242 includes face-flange 244 With rear flange 246.Face-flange 244 is attached on the periphery edge 248 in face 238.The part of rear flange 246 is attached to bottom 232, on the part of 236 periphery edge of crown 234 and skirt section, such as crown flange 250 and flange in the bottom 252 are attached to.It is preferred that The face and rear flange are about 2.0mm-12.0mm.
Bending section 242 preferably consists of such materials, and the material is provided than glof club head adjacent part more Low Young's modulus.It is preferred that the rear portion of bending section 242, face 238 and glof club head 230 consists of such materials, it is described Material for example can be combined readily by welding.Such as face 238 and rear portion are preferably made of the first titanium alloy and bending section 242 are made of beta-titanium alloy, as described in more detail below.
Selectable, bending section 242 can be made of the carbon fibre composite ring of offer relatively low stiffness.Joint construction, Ring geometry, ring position, fiber alignment, resin type and resin content percentage are all that selection is used for optimizing bending section 242 Parameter flexible while keeping the glof club head so that the ball speed of output is improved with the club head face of rod Durability.It is preferred that carbon composite bending section is attached on adjacent metal club head face and adjacent metal opisthosoma point.
In another embodiment, as shown in figure 24, bending section is between glof club head club head face and rear portion Transition position is attached on face element part.Such as glof club head 260 usually has hollow body construction, passes through bottom 262, crown 264, skirt section 266, face 268, hosel and bending section 272 define.Bending section 272 is included in the front of glof club head 260 In, and it is typically configured as ring-type element, and it is placed in face 268 and bottom 262, between crown 264 and skirt section 266.
Similar to the embodiment of front, bending section 272 is adjusted, so that impact is about along bending section imparting frequency The vibration of 2900Hz-4000Hz.Bending section 272 is located at around 268 periphery of face, and makes it along transition curvature from golf The face of club head 260 to the rear portion of glof club head, such as bottom 262, crown 264 and skirt section 266 extend.Bending section 272 It is terminated in flange, the flange is provided for bending section 272 to be installed to the bonded block in glof club head 260 Example.Specifically, bending section 272 includes face-flange 274 and rear flange 276.Face-flange 274 is attached to the week in face 268 On side flange 278.The part of rear flange 276 is attached on the part of 266 periphery edge of bottom 262, crown 264 and skirt section, example Such as combined by being attached to crown flange 280 and flange in the bottom 282.
Bending section 272 preferably consists of such materials, and the material is provided than glof club head adjacent part more Low Young's modulus.It is preferred that the bending section 272 of glof club head 260, face 268 and rear portion consist of such materials, it is described Material for example can be combined readily by welding.Such as face 268 and rear portion are preferably made of the first titanium alloy and bending section 272 are made of beta-titanium alloy, as described in more detail below.
In another embodiment, as shown in figure 25, glof club head 290 includes interface element, is included in It is interior, the adjacent part for bending section 292 to be attached to glof club head 290.Front interface element 294 is placed in bending section Between 292 knead dough elements 296.Similar, rear interface element 298 is placed between bending section 292 and back volume elements part 300.
In embodiments of the invention, front interface element 294 and rear interface element 298 are built as ring-type element , it is placed between adjacent component.Front interface element 294 includes that (it is attached to face element part to face-flange 302 by lap joint On 296) and bending section flange 304 (it is attached to by lap joint on bending section 292).The front interface element 294 of a part Expose and form the front surface of a part for glof club head 290 to the open air.Interface element 294 is by the leading edge of bending section 292 and face The periphery of element 296 separates.Interface element 298 includes rear body flange 306 (it is attached on rear volume elements part 300) and bending section afterwards Flange 308 (it is attached on bending section 292).Interface element 298 separates rear volume elements part 300 and bending section 292 afterwards.
Glof club head 290 is constructed with mixing material.In one example, 300 knead dough element 296 of rear volume elements part by Titanium alloy is constituted, and can be made of identical titanium alloy such as Ti6-4.Front interface element 294 and rear interface element 298 are by this The material of sample is constituted, and selects material of the material for being attached to face element part 296, bending section 292 and rear volume elements part 300. In one example, which is made of aluminium alloy, and bending section is made of carbon fibre composite.It should be opened Show, the interface element 298 is not necessarily to be configured with constant cross-sectional shape.
As shown in figure 26, glof club head 320 includes interface element, and the interface element is used for 322 knot of bending section On the adjacent part for closing glof club head 320.Front interface element 324 is placed between 322 knead dough element 326 of bending section.Class As, rear interface element 328 is placed between bending section 322 and rear volume elements part 330.
Front interface element 324 and rear interface element 328 are all configured to ring-type element, are placed between adjacent component.Before Interface element 324 includes face-flange 332, is attached on face element part 326, has lap joint.Front interface element 324 also wraps Bending section flange 334 is included, is attached on the forward flange 340 of bending section 322.The front interface element 324 of a part exposes to the open air and shape At the front surface of a part for glof club head 320.Interface element 324 is by the week of the leading edge of bending section 322 and face element part 326 Edge separates.Interface element 328 includes rear body flange 336 (it is attached on rear volume elements part 330) and 338 (its of bending section flange afterwards It is attached on bending section 322).Interface element 328 separates rear volume elements part 330 and bending section 322 afterwards.
Glof club head 320 is constructed with mixing material.In one example, 330 knead dough element 326 of rear volume elements part by Titanium alloy is constituted, and can be made of identical titanium alloy such as Ti6-4.Front interface element 324 and rear interface element 328 are by this The material of sample is constituted, and the material is selected to be attached on the material of face element part 326, bending section 322 and rear volume elements part 330.One In a example, interface element is made of aluminium alloy and bending section is made of carbon fibre composite.
Referring to Figure 27, glof club head 350 includes bending section 352, the bending section and golf club rear portion knead dough Transition position between 354 separates.Usual glof club head 350 has hollow body construction, by bottom 356, crown 358, Skirt section 360, face 354, hosel and bending section 352 define.
Bending section 352 is placed between 350 rear portion of face 354 and glof club head.Bending section 352 is typically ring-type element, It is with U-shaped cross-section shape, so that it includes forward flange 362 and rear flange 364.Forward flange 362 is attached to face 354 It is attached on the flange at golf club rear portion with rear flange 364 on face-flange 366, the aft flange includes crown method Orchid 368 and flange in the bottom 370.
Embodiment shown in Figure 28 and 29 is similar to Figure 27, but includes another flange configuration.As shown in figure 28, Glof club head 380 is constructed with hollow body, passes through bottom 382, crown 384, skirt section 386, face 388, hosel and bending Portion 390 defines.Bending section 390 is placed between face 388 and golf club back of head, and the rear portion includes bottom 382 and hat Top 384.Bending section 390 is typically ring-type element comprising preceding bound fraction 392 and rear flange 394.Preceding bound fraction 392 is A part for bending section 390, be looped around it is around face-flange 396 and in connection so that preceding bound fraction 392 accommodate At least part of face-flange 396.The part of rear flange 394 is adjacent and is connected to flange in the bottom 398 and crown flange 400 On.
As shown in figure 29, glof club head 410 is constructed with hollow body, passes through bottom 412, crown 414, skirt section 416, face 418, hosel and bending section 420 define.Bending section 420 is placed between face 418 and golf club back of head, described Rear portion includes bottom 412 and crown 414.Bending section 420 is typically ring-type element comprising forward flange 422 and rear flange 424. 422 adjacent flat flange 426 of forward flange and in connection.The part adjoining flange in the bottom 428 and crown flange of rear flange 424 430, and be combined with them.
The construction of the bending section of each embodiment can be selected from many different alternative solutions, for being rushed in golf The behavior adjusted is provided during hitting.Figure 30-34 shows the interchangeable multi-piece construction of different bending sections.Specifically, Shown in bending section include bending section component, with different selectable geometries.Such as the bending section 440 of Figure 30 is wrapped Angled cross-sectional shape is included, the shape includes bending section component 442, is formed usually as L-shaped element.Bending section portion Part 442 is attached on the forward flange 444 and rear flange 446 of the golf body of rod 448.As shown, forward flange 444 and rear flange 446 be convergence property flange, they are mutually angled.Forward flange 444 and rear flange 446 are integrated into glof club head body In 448 bottom 450, it is generally in the position of glof club head approaching face 452.As previously mentioned, bending section 440 is preferably placed at In the ball striking face about 20mm in face 452, and more preferably from about 5.0mm-20.0mm.Bending section component 442 can pass through any machine Tool combined method for example welds, is brazed, machanical fastener, diffusion bond, liquid surface diffusion bond, super be plastically forming and expand Dissipating bind is closed and/or is attached on forward flange 444 and rear flange 446 using binder.It is a kind of permission in the fabrication process close to The construction of the inner cavity chamber of glof club head, such as crown drawing construction or face drawing construction so that combined method can be easy It completes on ground.
In another embodiment, as shown in figure 31, (it is with wavy or corrugated cross section shape for bending section 460 Shape) it is included in glof club head 462.Bending section 460 is made of bending section component 464, is attached to glof club head On 462 forward flange 466 and rear flange 468.Forward flange 466 and rear flange 468 are integrated into the bottom of glof club head body 462 In portion 472, it is generally in the position of glof club head approaching face 470.As previously mentioned, bending section 460 is preferably placed at face 470 In ball striking face about 20mm, and more preferably from about 5.0mm-20.0mm.Bending section component 464 can pass through any mechanical bond side Method for example welds, is brazed, machanical fastener and/or is attached on forward flange 466 and rear flange 468 using binder.
In a further embodiment, bending section is formed by the bending section component of flange and usual channel shape.Referring to Figure 32, Glof club head 480 includes bending section 482, is formed by bending section component 484, and the bending section component for example passes through weldering It connects, be brazed and/or binder is attached on the flange of bottom 492 of glof club head 480.Bending section 482 is preferably placed at face In 494 ball striking face about 20mm, and more preferably from about 5.0mm-20.0mm.Specifically, bending section component 484 is typically channel Shape element comprising groove 486, the groove contain the part of forward flange 488 and rear flange 490.Pass through bending section component 484 part separates groove 486, and a part for the bending section component 484 is selected to be used in forward flange 488 and rear flange Desired spacing is provided between 490.
In similar embodiment, as shown in figure 33, glof club head 500 includes bending section 502, by having The formation of bending section component 504 of channel shape cross section.Bending section component 504 is for example combined by welding, soldering and/or binder Onto the flange formed on the bottom of glof club head 500 506.Bending section 502 is preferably placed at the ball striking face in face 508 In about 20mm, and more preferably from about 5.0mm-20.0mm.Specifically, bending section component 504 is typically channel shape element, which define Accommodate the slit of the part of forward flange 510 and rear flange 512.
In another embodiment, as shown in figure 34, glof club head 520 includes being formed by bending section component 524 Bending section 522, with channel shape cross section.Bending section component 524 is configured to the cross section of common shark dentation, and tool Body includes first surface part and common flat, they are converged in apex.Bending section component 524 for example passes through weldering It connects, be brazed and/or binder is attached on the flange formed on the bottom of glof club head 520 526.Bending section 522 is excellent Bit selecting is in the about 20mm of the ball striking face in face 528, and more preferably from about 5.0mm-20.0mm.Specifically, bending section component 524 Typically channel shape element, which define the slits for the part for accommodating forward flange 530 and rear flange 532.
Referring to Figure 35, the glof club head 540 of another embodiment includes bending section 542, is shaped like in figure Embodiment shown in 34, but bending section 542 extends outwardly from the bottom of glof club head 546.Bending section 542 is by bending section The formation of component 544, has the cross section for forming channel.Bending section component 544 is configured to the cross section of common shark dentation Shape, includes specifically first surface part and common flat, they are converged in apex.Bending section component 544 Such as it is attached on the flange formed on the bottom of glof club head 540 546 by welding, soldering and/or binder.Bending Portion 542 is preferably placed in the about 20.0mm of the ball striking face in face 548, and more preferably from about 5.0mm-20.0mm.
In an alternate embodiment, as shown in figure 36, glof club head 560 includes bending section 562.Bending section 562 are formed by the bending section component 564 usually with tubular cross-section.Bending section component 564 is configured with usual tubular cross Cross sectional shape, although and it be shown as with circular cross-sectional shape, should take a hint, it can have any cross section shape Shape.Bending section component 564 is for example attached to by welding, soldering and/or binder in the bottom of glof club head 560 566 On the flange 568 of upper formation.Bending section component 564 has the outer shape complementary with flange 568, and provides in conjunction with table Face, so that bending section component 564 can be attached on flange 568.Bending section 562 is preferably placed at the ball striking face in face 570 About 20.0mm in, and more preferably from about 5.0mm-20.0mm.
Referring to Figure 37, in another embodiment, glof club head 580 includes bending section 582.Bending section 582 Shape be similar to Figure 34 shown in embodiment, but bending section 582 be orientated it is reversed with common shark dentation cross section.Tool Body, the curvature portion of bending section 582 is more posteriorly than embodiment shown in other.As shown, bending section 582 is by bending section The formation of component 584, has the cross section for forming channel it should be appreciated that bending section 582 can be with glof club head 580 Bottom 586 be formed as individual construction together.By changing orientation of the bending section relative to glof club head rest part, apply The stress being added on bending section applies in the selected direction, and the behavior of bending section is different, so that bending Portion is actually stronger.Therefore, which can be adjusted glof club head by changing orientation.Bending section component 584 are for example attached to by welding, soldering and/or binder on the flange formed on 580 bottom 586 of glof club head. Bending section 582 is preferably placed in the about 20.0mm of the ball striking face in face 588, and more preferably from about 5.0mm-20.0mm, and thick Degree is preferably about 0.35mm-2.0mm.
Referring to Figure 38-40, glof club head 600 includes extended chamber, provides and can be used for adjusting to provide The bending section 602 of desired compliance.Such as the glof club head includes flexible tube, can be filled with conformable material or It is partially filled with to adjust sound, feeling and compliance, or its is vacant.Glof club head 600 includes crown 604, bottom 606, (they combine and form hollow body golf for skirt section 608, face 610 (which define ball striking faces 611) and hosel 612 Head constructs, which defines inner cavity chamber 614).Bending section 602 is extended tubular structure, usually in heel to toe Side upwardly extends, and defines bending section chamber 613.In one embodiment, bending section 602 is along glof club head 600 extend, so that when glof club head be in address position, it is vertically crosscutting, extends through glof club head The fore-and-aft plane of 600 club head face geometric center.
Including aperture 616, the channel to inside bending section 602 is provided, and can be closed with covering 618, it should Covering is preferably removably attached on the bending section 602 in aperture 616.As an example, aperture 616 can carry spiral shell Line, and covering 618 can be threaded into aperture 616, and include having that covering 618 can be installed and be moved The tool of the component removed.
As another option, what bending section 602 can be completely or partially is filled with inserts 603, such as high density elasticity Inserts.Such as with the elastic material impregnated of high density material, the high density material such as tungsten is embedding to generate high density flexible Part is inserted into tubulose bending section, or one of be inserted into other embodiments including open slots described here it is curved In pars convoluta, after club head face.Inserts can be used for filling or be partially filled with bending section to change the sound of glof club head Scholarship and moral conduct is.By multiple inserts for constituting of material with different densities and/or with different weight distribution can be used for generating with Inserts in different quality and weight distributing installations to bending section, so as to the final weight and quality to the glof club head Distribution is selected.In addition, bending section may include opening, extend into inner cavity chamber, and the inserts can be used for blocking Opening, so that inner cavity chamber is not exposed to environment, such fragment and water cannot propagate into the inner cavity chamber.It is illustrative suitable Material includes polyurethane, rubber, thermosetting polymer, thermoplastic polymer, epoxy resin, foam and neoprene.Selection tool There is the material of certain hardness to combine the flexibility for providing combination with bending section.It is preferred that the hardness of selected material is typically A type hardness tester meter range 30-95 or D type hardness tester meter ranges 45-85.
The glof club head 620 of an alternate embodiment is described with reference to Figure 41-43 comprising from glof club head 624 outwardly extending bending section 622 of bottom.Glof club head 620 is configured with crown 626, bottom 624, skirt section 628, face (they collectively form the hollow body structure for defining inner cavity chamber 634 for 630 (which define ball striking faces 631) and hosel 632 It makes, and).In embodiments of the invention, bending section 622 is extended continuously across bottom 624, skirt section 628 and crown 626, So that it is looped around on the toe in skirt section 628 of glof club head 620.
In a further embodiment, bottom plate is integrated into glof club head, and at least part of be integrated into In bending section.As shown in figure 44, glof club head 640 includes crown 642, bottom 644, face 646, skirt section 648 and bottom plate 650 (they combine and form hollow body, and the hollow body defines inner cavity chamber 651).Bottom 644 and the combination of bottom plate 650 are formed Bending section 652.Bending section 652 is a kind of channel shape component, is usually upwardly extended in heel to toe side, and by first yuan Part 654, second element 656 and the formation of bottom plate 650.First element 654 is attached to the rear of the preceding emission part 658 of bottom 644, And it is bent into inner cavity chamber 651 from bottom 644.Second element 656 is attached in the leading edge at 644 rear portion of bottom, and also the bottom of from Portion 644 is bent into inner cavity chamber 651.The end (it is spaced apart with bottom 644) of first element 654 and second element 656 is on vertex It is combined with each other at 660.Second lower end of second element 656 is combined with the front of bottom plate 650 after making bending section 652 Portion is complete, and the rear portion of the bending section 652 extends to the lower part outer bottom face of glof club head 640 from vertex 660, so that The depth for obtaining bending section 652 is more than the thickness of bottom plate 650.
In Fairway Woods or mixed embodiment, usually construction is used for providing earthed surface, and bottom 644 has logical Normal stepped construction, so that only the preceding emission part 658 of bottom 644 provides earthed surface, and remaining of earthed surface Part is provided by the lower surface of bottom plate 650.It is preferred that the bending section extends and extends on common heel to toe direction.
In addition, in this embodiment and the following examples, the material of bottom plate is selected to be used in the golf Desired Mass Distribution is provided in head, and the material can have than the rod head body material rest part higher or Lower density.Such as because bottom plate is usually integrated with bending section, the bending section is relatively close to glof club head Face, therefore it is beneficial that can be by high density material for alley and mixing embodiment, to keep the low of glof club head Center of gravity, and can be beneficial in the embodiment of bat compared with the material of low-density, so that (otherwise it will be in bottom to quality of materials In portion's structure) periphery of the glof club head can be distributed to.The bottom plate material be preferably selected from aluminium, titanium, magnesium, zirconium, steel, Tungsten, and bottom plate can be attached to height by fastener, soldering, welding, binder or any other suitable connection method On golf ball rod head body.In one example, Fairway Woods can be constructed using the titanium for most of rod head bodies, and steel or The bottom plate of tungsten is soldered on titanium body.
In an alternate embodiment, as shown in figure 45, glof club head 670 is constructed similar to Figure 44, so that It include the part for foring bending section 674 bottom plate 672, but in this embodiment, bottom plate 672 is received In the recess of the bottom of glof club head 670 676.Glof club head 670 is typically hollow, and by crown 678, bottom 676, face 680, skirt section 682 and bottom plate 672 (they combine the hollow body for being formed and defining inner cavity chamber 684) carry out structure It makes.
Bending section 674 is usually formed by first element 686, second element 688 and bottom plate 672.First element 686 combines Onto the rear of the preceding emission part 690 of bottom 676, and it is bent into inner cavity chamber 684 from bottom 676.Second element 688 is attached to In the leading edge at the rear portion of bottom 676, and also it is bent into inner cavity chamber 684 from bottom 676.First element 686 and second element 688 End (they are spaced apart with bottom 676) be combined with each other at vertex 692.Second lower end of second element 688 with The front of bottom plate 672, which combines, keeps the rear portion of bending section 674 complete, and the rear portion of the bending section extends to Gao Er from vertex 692 The lower part outer bottom face of husband's club head 670.
Bottom 676 and the combination of second element 688 form the groove in 670 lower wall of glof club head, accommodate bottom Portion's plate 672.Specifically, binding site of the lower end of second element 688 between second element 688 and bottom 676 extends below shape At shoulder such as lappet 689, the adjacent lower surface in bottom 676 extends below.Therefore, in Fairway Woods and mixing embodiment party In case (its using lower surface contiguously), preceding emission part 658, bottom plate 650 and the rear portion of bottom 676 provide golf club First 670 ground connection lower surface.
The glof club head of another embodiment is shown with reference to Figure 46 comprising bottom plate.Glof club head 700 Including bottom plate 702, the bottom plate is attached on bottom 704 and forms a part for bending section 706.Bending section 706 It is made of the bottom plate 702 of first element 708, second element 710 and a part.First element 708 and second element 710 extend Into the inner cavity chamber of glof club head 700, and cross at vertex 712.The lower end of second element 710 is in second element 710 and the binding site of bottom 704 extend below to form shoulder or lappet 714, it is complementary simultaneously with the shoulder 716 of bottom plate 702 In conjunction with.Bottom 704 has stepped construction, so that bottom plate 702 provides the minimum surface of glof club head 700.
In another embodiment, as shown in figure 47, glof club head 720 includes bottom plate 722, covers packet It includes the aperture 724 in 720 bottom 726 of glof club head and forms the bending section 730 of a part.Aperture 724 can be with For providing the channel for arriving glof club head inner cavity chamber, carry out positioning of bottom plate 722, and/or allow the adjustment bottom plate of bigger Quality in 722, while keeping the monnolithic case of glof club head 720.Such as bottom plate 722 may include protrusion 728, It increases the quality of bottom plate 722 and extends in aperture 724 and/or inner cavity chamber.
In another embodiment, as shown in figure 48, glof club head 740 includes bottom plate 742, covers height The aperture 744 that the bottom 746 of golf ball head 740 includes, and weight port is provided, for weight element 748 to be combined To the glof club head.It is preferred that the weight port is arranged, not change the bottom of combination when changing or removing weight element 748 Portion's plate 742 and the position of centre of gravity of weight element 748 provide more effective mechanism, for changing including glof club head The swing weight of 740 golf club.Specifically, bottom plate 742 is for example attached to dismountable weight including installing component Threaded hole on element 748.
Alternatively, what any open loop portion described here can be complete or partial is filled with inserts, Such as inserts 743, can be the inserts of high density elasticity.Such as generate height with the elastic material impregnated of high density material Density flexible insert, the elastic material such as tungsten in the inserts insertion tube sigmoid portion, or are inserted into packet described here In the bending section for including one of other embodiments of open slots, after club head face.Inserts can be used for filling or part Bending section is filled to change the acoustics behavior of glof club head.By with different densities and/or with different weight distribution Multiple inserts that material is constituted can be provided to generate inserts, in different quality and weight distributing installations to bending section, So as to the glof club head final weight and Mass Distribution select.In addition, bending section may include opening, prolong Stretch into inner cavity chamber, and the inserts can be used for occlusion of openings so that inner cavity chamber is not exposed to environment, such fragment and Water cannot propagate into the inner cavity chamber.Illustrative suitable material includes polyurethane, rubber, thermosetting polymer, thermoplastic poly Close object, epoxy resin, foam and neoprene.Material of the selection with certain degree of hardness is combined with bending section to provide the soft of combination Property.It is preferred that the hardness of selected material is typically A type hardness tester meter range 30-95 or D type hardness tester meter ranges 45-85.
A kind of glof club head of embodiment is described with reference to Figure 49 comprising bottom plate and bending section.Golf Head 750 includes crown 752, bottom 754, skirt section 756, face 758 and bottom plate 760.Groove 762 be included in bottom 754 with Bottom plate 760 is contained, but when installing bottom plate 760, the shape between the antetheca 764 and the front end of bottom plate 760 of groove 760 At gap.Therefore, which forms the bending section 766 in lower part of the glof club head close to face 758.
In another embodiment, as shown in figure 50, glof club head 770 includes stair-stepping bottom 772 and bottom Portion's plate 774, they combine and form bending section 775.Bottom 772 includes preceding emission part 778, from face 776 back towards bottom 772 Transition wall 780 extend, the transition wall 780 forms the antetheca of bending section 775.Bottom plate 774 is attached to bottom 772, with So that the interval of it and transition wall 780 forms bending section 775.Bottom plate 774 extends back from transition wall 780, and uses dotted line Indicate desired distance.
The glof club head of another embodiment includes recessed bottom and bottom plate, they combine and form bending section, And a part for the golf club is shown in FIG. 5.Glof club head 790 includes bottom 792, the bottom 792 The groove 794 for receiving bottom plate 796 is defined, and the bottom combines with bottom plate and defines bending section 800.Specifically, bottom Portion 792 includes preceding emission part 798, and the preceding emission part 798 is in the face of glof club head 802 and the (transition of transition wall 804 Wall 804 extends internally from preceding emission part 798, and forms a part for groove 794) between extend.Bottom plate 796 is contained in groove In 794 and it is attached to bottom 792, so that the front of bottom plate 796 is separated with emission part 798, is formed in bending section 800 logical The gap of normal V-arrangement.
Referring to Figure 52, a kind of glof club head 810 of embodiment comprising bending section 812 and bending section adjustment portion Part.Glof club head 810 includes crown 814, bottom 816,818 knead dough 820 of skirt section (which define ball striking faces 822). Bottom 816 includes preceding emission part 824, and antetheca 826 of the preceding emission part 824 from face 820 towards bending section 812 extends back. Antetheca 826 is attached to formation bending section 812 on rear wall 828 at vertex 830.Prolong backward from rear wall 828 at the rear portion of bottom 816 It stretches, and forms the rest part of bottom 816.As shown, the rear portion of bottom 816 can have a thickness that, the thickness Degree for example changed by including thickened areas 832, the thickened areas 832 by isolated part 834 backward with bending section 812 intervals.
Bending section 812 extends and extends on heel to toe direction, and forms the outer tunnel in bottom 816.Selection Emission part 824, antetheca 826, vertex 830, rear wall 828 and isolated part 834 thickness to during golf impact Bending section 812 is adjusted and arrives desired vibration frequency.The thickness t1-t7 with particular kind of relationship is defined, so that emission part 824 are transitioned into the second thickness t2 adjacent with antetheca 826 from the first thickness t1 adjacent with face.The thickness of antetheca 826 is tied from it The about t2 for closing 824 place of emission part changes to the thickness of center thickness t3 and the thickness t4 to approximately equal to vertex 830.Class As, the thickness of rear wall 828 combines the about t4 of 830 place of vertex to change to center thickness t5 and to being approximately equal to be isolated from it The thickness of the thickness t6 of part 834.Backward, the thickness of bottom 816 is from the thickness t6 of isolated part to thickness t7 for isolated part 834 Variation.
As described above, the flexibility being added in the glof club head with the bending section being located in bottom of the present invention subtracts The reverse of the pellet impact below fluid shock position is lacked.Because of the reduction reversed, the ball of glof club head strikes table Face curvature is different in the upper surface of ideal impact position with following, so that it is inverse to reduce to adjust the transmitting of golf Turn amount.Ball striking face curvature of the golf club between the top edge in face and the leading edge of golf club is defined as face " roller ".Roller radius of the glof club head of the present invention preferably on ideal impact position is different from below fluid shock position Roller radius.Selectable, the roller radius higher than the geometric surface center in golf club head face is different from being less than golf The roller radius at the geometric surface center in club head face.Alternatively, the club head face on the top 2/3 of the glof club head Roller radius is different from the club head face of lower part 1/3.The roller radius for being preferably close to the part of the ball striking face of bending section is more than far The part of club head face from bending section, so that the part close to the ball striking face of bending section is more flat than other parts. Such as in glof club head 810, bending section 812 is located in the lower surface of the glof club head, and less than ideal punching The roller radius R1 for hitting the ball striking face of a part for position is more than the part of the ball striking face higher than fluid shock position Roller radius R2.It is preferred that the roller radius closest to the ball striking face part of bending section is greater than about 12.0 inches, and it is more preferably big In 12.5 inches.
Similar, the curvature of ball striking face of the golf club between the heel and toe of club head face is defined as head " protrusion " in face.The glof club head (it includes the bending section for extending to glof club head skirt section) of the present invention provides pair It is reduced in the similar sidespin of the golf of centrifugation impact impact, and therefore with glof club head is more than, (it does not exist Bending section on skirt section) convex radius.It improves convex radius and produces more flat club head face, improve the golf club The hot spot region of club head face, this is by reducing the inclination of centrifugal stroke impact to provide between glof club head and ball More effective energy transfer is realized.It is preferred that closest to the ball striking face portion of the bending section in glof club head skirt section The convex radius divided is greater than about 12.0 inches, and more preferably greater than 12.5 inches.
The embodiment that Figure 52-54 shows selectable thickness transitions.It is used to provide for used herein of thickness relationship Through the desired bending distribution of bending section and the golf club head adjacent with bending section point.Implement shown in Figure 52 In scheme, thickness t1 and t2 in emission part are at least the 50% of minimum club head face thickness, and more preferably minimum face thickness At least 60% and preferred thickness t1 is more than t2 (t1>t2).In addition, the anterior wall thickness t3 of bending section and rear wall thickness t5 differences are small In 40%, more preferably the two difference is less than 30% and even more preferably the two difference is less than 20%.In addition, the anterior wall thickness of bending section Degree t3 and rear wall thickness t5 is preferably smaller than the 90% of face minimum thickness, and the wall thickness of bending section is preferably lower than or equal to emission part Thickness t1, t2.The preferred thickness in vertex of bending section is the minimum thickness t3 of preferably greater than or equal to bending section antetheca with after Wall thickness t5.In addition, vertex thickness t4 is preferably in 30% of the greater in anterior wall thickness t3 and rear wall thickness t5, and it is more excellent It is selected as in 15% of thickness the greater in them.
If the thickness of the bottom part in the about 30.0mm in bending section rear wall is more than the hair before the antetheca of bending section The thickness in portion is penetrated, then the preferred thickness for reducing the bottom adjacent with bending section rear wall.For example, if bottom thickness t7 compares bending section The minimum thickness of emission part in rear wall 30.0mm is big, then the thickness t6 for abutting the subsequent bottom part in bending section preferably smaller than should The minimum thickness of emission part and less than minimum face thickness.Preferred thickness t6 is less than the 70% of emission part minimum thickness, and more preferably Less than the 60% of emission part minimum thickness.In addition, thickness t6 is less than the 60% of minimum face thickness, and more preferably less than minimal face is thick The 50% of degree.
In another embodiment, as shown in figure 53, change the emission part, it includes such thickness to make it, described Thickness changes on the length L of emission part.The thickness relationship of other parts for above-mentioned bending section and bottom and the reality of front It is identical to apply scheme, repeats no more.In emission part, the thickness of transmitting is substantially at least the 60% of the emission part length L It is constant, and more preferably at least the 70% of emission part length L be constant.In addition, the maximum of the emission part is thick Degree is compared to bending section antetheca closer to the face of the glof club head.Maximum gauge is usually located at thickness t1, and transmitting The minimum thickness in portion is usually located at thickness t2, as shown in figure 53.The minimum thickness in preferred emission portion is greater than or equal to the Gao Er The minimum thickness of husband's club head sole.The minimum thickness of emission part be preferably smaller than emission part maximum gauge 70% and more preferably it is small In the 60% of emission part maximum gauge.
In another embodiment, as shown in figure 54, change the emission part, it includes such thickness to make it, described Thickness changes on the length L of emission part, and vertex thickness is illustrated as the minimum thickness t3 than the antetheca of bending section and rear wall thickness T5 is big, and the thickness of bending section bottom rearward is illustrated as the maximum gauge of constant and usually less than emission part.This In embodiment, the thickness of the emission part is usually from face adjacent place to bending section antetheca linear decrease.From face adjacent place to curved The linear reduction of pars convoluta, the linear decrease or thickness is preferably greater than about 4% (that is, thickness reduces in 10.0mm length 0.4mm), and more preferably greater than about 5%.In this embodiment, the thickness t6 of the neighbouring bottom part of bending section rear wall and From bending section, bottom thickness t7 further backward is maximum gauge roughly equal and less than emission part.
(with about 13 ° -30 ° of loft) in the embodiment of the golf club of the present invention, such as in alley In the glof club head of rod and mixed type, the thickness is usually in following range：t1)1.4-2.0mm；t2) 1.2-1.6mm；t3)1.2-1.7mm；t4)1.2-2.0mm；t5)1.2-1.7mm；t6)0.6-1.2mm；And t7) 0.6-4.0mm. Similar, (with about 6 ° -12 ° of loft) in the embodiment of the golf club of the present invention, such as in bat class In type glof club head, the thickness is usually in following range：t1)1.4-2.0mm；t2)0.6-1.6mm；t3)0.5- 1.7mm；t4)0.5-2.0mm；t5)0.5-1.7mm；t6)0.5-1.2mm；And t7) 0.5-3.0mm.
Referring now to the drawings 55 and 56, glof club head 840 includes bending section 842, and the bending section 842 is at least partly Be covered with dismountable element 844.Glof club head 840 includes crown 846, bottom 848, skirt section 850, (it is fixed in face 852 Justice ball striking face 854) and hosel 856 (it is connected to extended golf club shaft, and is clamped in the Gao Er of assembling In husband's club).
Bending section 842 is located in the front of bottom 848, usual vicinal face 852, and includes being used for detachable components 844 Installation section.Bending section 842 includes antetheca 858, and the antetheca 858 is combined with rear wall 860 at vertex 862.Rear wall 860 exists Vertex 862 and for extending between the pedestal 864 of detachable components 844.Pedestal 864 includes the carrier part 866 being recessed, and is held Receiving detachable components 864 and makes its positioning, so that when it is installed, the lower surface of detachable components 844 is relative to adjacent bottom The flush with outer surface in portion 848 is recessed.Bonded block 868 is by including so that detachable components 864 can removably connect It is connected on glof club head 840.Such as bonded block 868 can be threaded hole and detachable components 844 can be aggravated Bottom plate is incorporated into threaded fastener on the threaded hole.
The size of detachable components 844 is adjusted so as to fit being installed in recessed pedestal 864, so that it and bending The antetheca 858 in portion 842 is spaced apart and forms gap 870.Gap 870 is provided to the opening in bending section 842, and the opening carries It has supplied to enter the path in chamber 872 (it is defined by detachable components 844 and bending section 842).Gap 870 provides sky Between, so that bending section 842 can be bent during golf impact, and gap 870 allows antetheca 858 relative to can Disassemble element 844 moves in the longitudinal direction.
Referring to Figure 57, glof club head 880 include bending section 882 (it intersects with the pedestal of detachable components 884) and Tradable shaft system 886.In this embodiment, glof club head 880 is constructed including hollow body, by crown, bottom Portion 888, skirt section and the formation of hosel 890.Glof club head 880 includes detachable components 884, such as weight element, and bottom The part in portion 888 includes the installing component of the weight element.In this embodiment, installing component includes common cylinder Shape receiver 892 is extended to from bottom outer surface inside glof club head 880.
Glof club head 880 further includes bending section 882, along bottom 888 on common heel to toe direction Front extend.Bending section 882 can have with other embodiments described here in relation to any particular configuration.
Glof club head 880 includes replaceable shaft system comprising fastener 894, and from bottom sides Head be combined.Including access opening 896, receives fastener 894 and extend from bottom 888 towards hosel 890.
The bottom structure of receiver 892, bending section 882 and access opening 896 intersects, so that the structure is by common part It generates.Specifically, the side wall of receiver 892 intersects with the side wall of bending section 882, so that the structure is in glof club head It is combined in 880 toes.Similar, the side wall of access opening 896 intersects with the side wall of bending section 882, so that the structure is in Gao Er It is combined in the heel of husband's club head 880.The intersection of 896 structure of receiver 892, bending section 882 and access opening reduce with institute The quantity of supernumerary structure when stating structure combination.
The usually physical attribute of control glof club head is provided with desired in glof club head impact process Behavior.In metal wood glof club head, Mass Distribution is controlled to provide desired position of centre of gravity and desired the moment of inertia.Such as Shown in Figure 58-60, the center of gravity of glof club head can be dimensionally related with many features on the glof club head.With Be listed in the following table in the desired size range of golf club of the present invention, and negative value shown in bracket illustrate relative to Direction (such as the faces the fc- center of gravity of fixed reference feature；The ground g-).
The bending section of the present invention adjusts size also relative to gravity center of golf club head position, to provide desired behavior. Should also take a hint, width W, height H and to the distance D of ball striking face can be described herein whole embodiments on survey Amount, as shown in figs. 1 and 4.It is preferred that distance D from ball striking face to bending section is less than or equal to 30.0mm, more preferably less than or Equal to 20.0mm and more preferable 5.0mm-20.0mm.In addition, distance D be preferably CG-Z-fc distances 20%-50% and more preferably It is the 25%-45% of CG-Z-fc distances.In addition, the sum of the height of bending section and width are preferably in the +/- of CG-Y-g distances 30%, and it is more preferably in +/- the 20% of CG-Y-g distances.
The reduction of the reverse provided by the bending section of the present invention also has the elasticity of bigger in Mass Distribution, to improve The rotary inertia of glof club head.It is provided specifically, the bending section of the present invention is incorporated in the bottom of glof club head Pellet impact simulates the launching condition of the glof club head (it is with centre of gravity) without bending section.Analysis shows that this Being incorporated to for invention bending section provides effect identical with the center of gravity reduction golf club of not bending section of 3.0mm.But Quality is placed in the lower part in the glof club head by the requirement that lowers the center of gravity, and because the glof club head shape, it It defines and can be placed at periphery come the amount for the quality for improving rotary inertia.So the bending section of the present invention may be used to provide tool There is the behavior of the glof club head of centre of gravity, while other quality is placed in the glof club head periphery to improve rotation Inertia and center of gravity is moved backward.
As described above, the present invention bending section a part glof club head in locally provide it is lower just Degree.The usual Low rigidity can be realized as follows：Select bending section geometry, such as change shape and/or Tranverse sectional thickness, and/or select the material of the part of bending section.It includes poplar that can select the material to provide Low rigidity bending section Family name's modulus beta (β) or nearly beta (nearly β) titanium alloy.
Beta-titanium alloy is preferred, this is because they provide the material with relatively low Young's modulus.What is applied It is the function of the rigidity of the plate in the flexure of the plate of its perimeter load under stress.The rigidity of the plate directly with Young's modulus and ball Bar thickness is (that is, t3) proportional.So when comparing two kinds of material samples with same thickness and different Young's, tool There is flexure bigger of the material of relatively low Young's modulus in the case where applying identical power.The energy stored in the plate directly with the plate Bend it is proportional, if the material shows as elasticity, and the energy stored applied stress removal after discharge just. Therefore, it is necessary to use this material for capableing of bigger flexure, and the therefore elastic energy of storage bigger.
The construction of the bending section typically results in the chamber that material extends into golf club, when crooked position is in golf When the bottom of head or crown, this usually enhances CG.When bending section is included in crown, the increase of CG height is obviously more Greatly.It is preferred that in the embodiment using crown bending section, the part of bending section crown rearward is forward relative to bending section crown Part it is lower, to reduce the whole CG of the glof club head.Specifically, the up-front height in crown bending section is curved more than crown The height of pars convoluta rear.It is preferred that difference in height is more than 1.0mm, and more preferably greater than 2.0mm, and with maximum height from the ground The position of crown is between the golf club head and bending section.
As shown in the embodiment of front, other than bending section, glof club head can have it is one or more can The installing component for dismantling weight, to change entire glof club head weight and/or the positions CG.In one embodiment, high The CG-C-sa values of golf ball head (including bending section in the bottom of the glof club head) are more than after shaft axis 18.0mm, and CG-Z-fc values are used more than the rotation around 33.0mm and/or the glof club head Y-axis preferably behind the center of face Magnitude is at least 450kg-mm2.In addition, the glof club head has at least one weight installing component and at least one removable Weight is unloaded, the CG of the glof club head can be changed at least 2.0mm in a certain direction.
Moreover it is preferred that making the vibration frequency of Golf club face and the vibration frequency of golf match, to make The golf speed that face is left after must impacting is maximum.The vibration frequency in face depends on face parameter, such as the Young's modulus of material And Poisson's ratio and club head face geometry.The typical modulus of alpha-beta (alpha-beta) Ti alloys is 105-120GPa.Phase Instead, the Young's modulus of current β-Ti alloys is 48-100GPa.
The selection of material for glof club head also must be considered that the golf through golf repeat impact The durability of head.Therefore, it is necessary to consider the fatigue life of club head face, and the fatigue life depends on the strong of selected material Degree.So the material for the glof club head must be selected for providing the biggest ball speed impacted from club head face, and Its must the enough intensity of fish oil to provide acceptable fatigue life.
β-Ti alloys generally provide low Young's modulus, but generally also along with the low strength of materials.β-Ti alloys It can usually be heat-treated to realize the increase of intensity, but heat treatment generally also causes the increase of Young's modulus.But β-ti are closed Gold can be cold worked to improve intensity, and without obviously increasing Young's modulus, and because the alloy usually has body placed in the middle Cubic crystal structure, therefore they usually can widely be cold worked.
It is preferred that the material that intensity is about 900-1200MPa and Young's modulus is about 48-100GPa is used for the golf The part of head.Such as preferably by such material for the face of glof club head and/or bending section and/or bending section Covering.The material for showing the characteristic within the scope of those includes titanium alloy, is commonly referred to as rubber-metal.
Although less preferably, heat treatment can be applied to realize that the intensity of material and Young's modulus can connect on β-Ti The balance received.The previous application of beta-titanium alloy usually requires heat treatment to make the strength of materials maximize, without controlling Young mould Amount.Titanium alloy experienced the phase turn of the opposite bodies of crystal structure α filled from hexagonal close cube β phases placed in the middle when heated Become.The temperature that this transformation occurs is referred to as beta transus temperature.The alloying element being added in titanium typically exhibits preferential stable alpha phase Or β phases, and therefore it is referred to as alpha stabilizers or β stabilizers.Even at room temperature by making titanium with certain amount of β stabilizers Alloying is also possible to stablize the β phases.But if such alloy is reheated to the height less than beta transus temperature Temperature then β phase decompositions and is transformed into α phases, as indicated by laws of thermodynamics.This alloy is referred to as the beta-titanium alloy of meta-stable.
Although thermodynamics rule also occurs many non-when only predicting the formation phase, actually β phase decompositions of α phases Balance phase.These non-equilibrium phases α ', α " and ω are indicated.There is report to claim, each in these phases is with different Young moulds Amount, and the magnitude of the Young's modulus is typically compliant with β<α”<α<ω.Therefore, can speculate if it is desire to being carried by being heat-treated The intensity of high β-titanium then advantageously carries out in this way, that is, the material that will include α " phases decomposes production as preferred Object, and we eliminate or the formation of α and ω phases are minimized.The formation of α " phases be by Phase Diagram of Materials from α+ The regions β quench to facilitate, it means that the alloy should be from the temperature quenching changed less than β.It is advantageous to by β-Ti alloys (its thermally treated so that form α " from β phases mutually maximizes) is for a part of glof club head.
Heat treatment method is selected to provide desired phase transition.Select thermal process variables for example maximum temperature, the retention time, The rate of heat addition, quenching rate form to generate desired material.In addition, heat treatment method can be specific to selected conjunction Gold, because the effect of different beta stable elements is different.Such as the behavior of Ti-Mo alloys be different from Ti-Nb alloys or Ti-V alloys or Ti-Cr alloys；Mo, Nb, V and Cr are whole β stabilizers, but are had the function of different degrees of.For Asia The beta transus temperature range of stable β-Ti alloys is about 700 DEG C -800 DEG C.So for such alloy, the solution treatment Temperature range will be about 25-50 degrees Celsius lower than beta transus temperature, and in practice process, which will be about 650 DEG C-about 750 DEG C carry out solution treatment.It, can be with the low temperature aging β-Ti alloys to further increase intensity after water quenching.Solution treatment Strength of materials measured value is about 650MPa, and the intensity for the alloy being heat-treated 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-13Zr-2Cr、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 are closed with the rubber-metal race that Ti+25mol% (Ta, Nb, V)+(Zr, Hf, O) is indicated Gold, such as Ti-36Nb-2Ta-3Zr-0.35O etc. (weight percent).Near β titanium alloy may include：SP-700、TIMET18 Deng.
In general, it is preferred that the face cup of glof club head of the present invention either face insert by alpha-beta or close-beta-titanium alloy structure At this is attributed to their high intensity, such as Ti-64, Ti-17, ATI425, TIMET54, Ti-9, TIMET639, VL-Ti, KS ELF, SP-700 etc..In addition, the rear portion of the golf body of rod is (that is, be different from face cup, face insert, bending section and bending section The part of covering) preferably it is made 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 previously mentioned, bending section can be constructed as individual component, and be connected to glof club head body its In remaining part point.Such as the bending section component can by forging stamped from sheetstock and formation, and the rest part of the rod head body with One or more cast parts construct.Bending ram portion component can be better than the bending section of casting, because casting can introduce machinery Defect.Such as cast material often suffers from its lower mechanical performance compared with the identical material of forging form.As one Example, the Ti-64 of form of casting have had the about mechanical performance of 10%-20% lower than forging Ti-64.This is because in casting Granularity be significantly greater than in forging form, and usually thinner granularity results in higher mechanical performance in metal material.
In addition, titanium casting also forms the superficial layer referred to as " α shells ", a surface region has the α phases being dominant Titanium is formed by the titanium rich in interstitial oxygen concentration.With the α phases of itself it is harmless in itself, but it can become very Golf impact (it causes the bending of repetition) that is hard and crisp, for example being repeated in fatigue is applied in this way, α shells may hamper Hinder the durability of component.
Most of titanium alloy is hardly possible to be formed at room temperature.Therefore, titanium alloy must be heated to high temperature to form it .Temperature necessary to forming alloy is by the composition depending on alloy, and the alloy with higher beta transus temperature is typically Need higher formation temperature.When material is cooled to environment temperature, it is exposed to the reduction that high temperature results in its mechanical performance.This Outside, being exposed to high temperature causes to form oxide skin(coating) on the surface.This oxide skin(coating) almost as " the α shells " discussed before, Other than it is not extended into material typically.Therefore, if it is beneficial to form temperature and can reduce.
In general, if using Ti-64 as baseline, because it is commonly used in the structure of aluminum medal wood type golf club head In making, because alloy (its beta transus temperature is less than Ti-64) can provide apparent benefit.Such as ATI425 be it is a kind of in this way Alloy, beta transus temperature be about 957 DEG C -971 DEG C, and the beta transus temperature of Ti-64 is about 995 DEG C.It therefore, it is expected to To be ATI425 can form at the temperature lower than Ti-64.Because having and the comparable machineries of Ti-64 in room temperature ATI425 Performance, therefore it is desired that the bottom made ATI425 alloys will be firmer than the bottom made of Ti-64.In addition, ATI425 usually has formability more better than Ti-64, therefore in one example, bending section is formed by ATI425 sheet materials , and the thinning bending section smaller by than being formed by Ti-64 sheet materials of the cross section of the bending section formed in this way.In addition, ATI425 can be cold formation, this will promote to generate firmer component.
In one example, mixing material glof club head is made of such component, the component by Ti-64 and ATI425 is constituted.Rod head body including crown, bottom or section bottom, skirt section, hosel and face-flange can be the casting of Ti-64 Part.Right latter part of bottom can be formed by bending section component, which is made of ATI425 sheet materials, and is welded Onto casting Ti-64 bodies, such as in slit or in being recessed, such as constructed shown in Figures 5 and 6.Then the face insert of forging welds Onto the face-flange of casting Ti-64, to keep the head complete.
Different manufacturing methods can be used for building the different components of the glof club head of the present invention.Preferably all of portion Part is combined by welding.Welding method can be that either MIG is welded manual such as TIG or they can be certainly Dynamicization, such as laser, plasma, electron beam, ion beam or a combination thereof.If it is desire to or needing (to be attributed to material choosing Select), other combined methods can also use, such as soldering and binder combine.
Component can be generated using punching press and forming method, casting method, method of moulding and/or casting method.As Casting method used herein, which results in the significant changes of sample shape, such as by rodlike, convert it to piece, Feature include both size and shape variation.In addition, casting is usually carried out in high temperature, and may include that material is microcosmic The variation of structure, for example, grain shape variation.While forming is commonly used in describing such a method, wherein material forming Generally remain the size of material, for example, by sheet material, and the piece is shaped, without substantially changeing thickness.Here is for height The example of the material selection of the part of golf ball head, it uses stamped and shaped methods：
A) body after the bending sections alpha-beta face element part+β+alpha-beta
B) body after the β face elements part+bending sections alpha-beta face insert+β+alpha-beta
C) body after β face elements part+alpha-beta inserts+β bending section+β
D) body (heat treatment) after the β face elements part+bending sections alpha-beta inserts+β+alpha-beta
It is the example of the material selection of the part for glof club head below, it uses cast parts：
A) body after the casting alpha-beta face element part+bending sections casting β+casting alpha-beta
B) body after the alpha-beta face element part+bending sections the casting β+casting alpha-beta formed
C) body after the alpha-beta of the alpha-beta face element part+bending sections the casting β+formation formed
D) body after the alpha-beta of the casting alpha-beta face element part+bending sections casting β+formation
It is the example of the material selection of the part for glof club head below, it uses the components of forging：
A) body after the alpha-beta face element part+bending sections the casting β+casting alpha-beta forged
B) body after the alpha-beta for the alpha-beta face element part+bending sections the casting β+formation forged
The density of beta alloy is typically larger than the density of alpha-beta or α alloys.As a result, making in the different part of glof club head The quality that will make these parts that there is bigger with beta alloy.Light weight alloy can be used for the rear portion of the body, so that entirely Glof club head quality may remain in desired range, such as be about 170g- for bat type golf club head 210g.Material such as aluminium alloy, magnesium alloy, carbon fibre composite, carbon nano tube compound material, glass fibre can be used multiple The combination of condensation material, reinforced plastics and these materials.
Although the foregoing describe a variety of different explanations of the present invention it should be appreciated that the different characteristic of each embodiment It can be used alone or arbitrarily combined with it to use.So the present invention is not limited only to particularly preferred reality described here Apply scheme.It is further understood that those skilled in the art in the invention can purport according to the present invention and the present invention It is changed and changes in range.Such as face insert can have the thickness changed with gradually continuation mode.In addition, the shape of slit Shape and position are not limited to those of disclosed herein.Therefore, (it is in the disclosure that those skilled in the art are illustrated from here In the scope and spirit of the present invention) the advantageous variation of the whole that can be easy to get come as other embodiments of the present invention Including.Therefore the scope of the present invention is defined as described in appended claims.

Claims (19)

1. a kind of glof club head, it includes：
Crown, which define the upper surfaces of the glof club head；
Bottom, which define the lower surface of the glof club head, the bottom includes emission part, bending section and rear portion；
Side wall extends between crown and bottom；
Hosel extends from crown, and includes shaft lever hole；With
Face, which define ball striking faces, and intersect with emission part in edge,
Wherein, the bending section is spaced apart with ball striking face in tail portion by emission part, and before the bending section includes Wall, vertex and rear wall, wherein the antetheca extends in the chamber defined by the glof club head and the rear wall extends to In the chamber, and the antetheca is connected with rear wall in apex,
Wherein the bending section is the 20%-50% of CG-Z-fc distances at a distance from ball striking face interval, and CG-Z-fc distances are Along the distance of horizontal Z- axis, the horizontal Z- between the geometric surface center of the glof club head and gravity center of golf club head Axis extends to tail portion before the glof club head,
The sum of the height of the wherein described bending section and width are no more than between ground level and gravity center of golf club head along vertical The 30% of the CG-Y-g distances of Y- axis.
2. glof club head according to claim 1, wherein bending section and the spacing of ball striking face are CG-Z-fc distances 25%-45%, CG-Z-fc distance are between the geometric surface center of the glof club head and gravity center of golf club head along dampening The distance of flat Z- axis, the horizontal Z- axis extend to tail portion before the glof club head.
3. glof club head according to claim 1, wherein the sum of the height of the bending section and width are no more than ground level Along the 20% of the CG-Y-g distances of vertical Y-axis between gravity center of golf club head.
4. glof club head according to claim 1, wherein the thickness of the emission part be minimum face thickness at least 50%.
5. glof club head according to claim 1, wherein the thickness of the emission part is from the adjacent position in face towards bending Portion reduces.
6. glof club head according to claim 5, wherein the emission part thickness-tapered at least 4%.
7. glof club head according to claim 1, wherein emission part length of the thickness of the emission part at least 60% On be constant.
8. glof club head according to claim 1, the wherein thickness difference of the thickness of antetheca and rear wall are less than anterior wall thickness 40%.
9. glof club head according to claim 1, wherein anterior wall thickness and rear wall thickness are both less than minimum face thickness 90%.
10. glof club head according to claim 1, the wherein thickness on vertex are the greater in anterior wall thickness and rear wall thickness 30% in.
11. glof club head according to claim 1, wherein the minimum thickness of the emission part is less than emission part maximum gauge 70%.
12. glof club head according to claim 1, wherein the thickness of the bottom rearward and in the 30.0mm in bending section Degree is less than the minimum thickness of emission part rearward and close to the bottom thickness of bending section rear wall more than the minimum thickness of emission part.
13. glof club head according to claim 1, wherein being less than hair rearward and close to the bottom thickness of bending section rear wall Penetrate the 70% of portion's minimum thickness.
14. glof club head according to claim 13, wherein being less than rearward and close to the bottom thickness of bending section rear wall The 60% of minimum face thickness.
15. glof club head according to claim 1, wherein ball striking face include define the first roller radius top and Define the lower part of the second roller radius more than the first roller radius.
16. glof club head according to claim 1, wherein the bending section is at least part of filled with submissive inserts, and And the submissive inserts is at least material of 12.0g/cc comprising density.
17. glof club head according to claim 1 further includes the bottom plate being connected in bottom groove, described Groove is defined by bending section at least partly.
18. glof club head according to claim 1, further includes weight element, it is attached to glof club head On, and intersect with bending section.
19. glof club head according to claim 1, wherein the CG-Z-fc distances are at least 33.0mm, and are being extended through The vertical axial rotary inertia for crossing center of gravity is at least 450kg-mm2。
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