CN103520891A

CN103520891A - Golf club

Info

Publication number: CN103520891A
Application number: CN201310265416.1A
Authority: CN
Inventors: 角田幸介; 柴健一郎; 土田厚志
Original assignee: Yamaha Corp
Current assignee: Yamaha Corp
Priority date: 2012-06-28
Filing date: 2013-06-28
Publication date: 2014-01-22
Anticipated expiration: 2033-06-28
Also published as: KR20140001772A; CN103520891B; KR101722807B1

Abstract

The invention provides a golf club in which a weighting component is arranged at a joint structure of a club body and a club head and which allows a low gravity center design without influencing an inertia moment about the axial direction of the club body. The golf club comprises: a club head (10); a club body (S) which is connected by a bush (17) insertable into a club neck (16); and a screw component (25) which fixes the bush (17) in the club neck (16), wherein the club head (10) has a recess (13A) on the club head bottom (13) side on the axis of the club body (S) and the club neck (16). A weighting component (WT) is mounted about the axial direction of the screw component (25), forming a hammer component (W), and is arranged in the recess (13) and in threaded engagement with the bush (17) to fix the club body (S) and mount the hammer component (W)

Description

Golf clubs

Technical field

The present invention relates to a kind of golf clubs, in more detail, relating to a kind of structure of connecting rod head and shaft of can utilizing will hammer the golf clubs of component configuration on shaft axis into shape.

Background technology

For example, in patent documentation 1, disclose as the bar head of golf clubs and the connecting structure of shaft.The connecting structure that the document is recorded inserts the leading section of shaft in lining and by the means such as bonding, both is fixed, by under the state in the bar neck of lining insertion rod head, in the recess that is formed at bar head bottom surface side, configure screw component, and by this screw component being screwed into the direction of insertion front of lining, shaft can be linked with bar head.

Patent documentation 1:(Japan) JP 2009-291602 communique

Yet in the golf clubs of recording at patent documentation 1, screw component becomes shaft is fixed on to the special-purpose member on bar head via lining.Therefore, for example,, in the situation that want the center of gravity of bar head to be set as lower, just have to leaving other positions configuration hammer parts of shaft axis.In this case, bar head increases around the axial moment of inertia of shaft, causes producing the unfavorable condition that becomes difficult golf clubs of batting control change and so on.

Summary of the invention

The object of the invention is to, a kind of golf clubs is provided, it can be by hammer component configuration at the structure division that shaft and bar head are linked, and can in the situation that not the axial moment of inertia of opposing connection shaft exert an influence and realize centre of gravity design.

In order to reach described object, the structure that the present invention adopts technical scheme required for protection to record, particularly, has adopted following structure, that is, a kind of golf clubs, possesses: bar head; Shaft, it is bonded via lining, and this lining can insert in the bar neck that is formed on heel lateral of described bar head; Screw component, it is attached at described lining the bottom of described bar neck; Described bar head has the recess on the central axis that is positioned at described bar neck on bar head bottom surface, at weightening finish parts (ウェイト portion material) and described screw component, form one and form under the state of hammer parts, the direction of insertion leading section to described lining runs through the described bottom of described bar neck and engages with the described direction of insertion leading section screw thread of described lining from described recess to make described screw component, thereby described shaft is fixed on described bar head.

In addition, preferably, described lining has the internal thread part forming at described direction of insertion leading section, and the central axis of described internal thread part is consistent with the central axis of described bar neck.

In addition, preferably, the central axis of the recess of described bar head is consistent with the central axis of described bar neck.

In addition, in the present invention, preferably adopt the structure of the Heavy Weight of lining described in the weight ratio of described hammer parts, the weight of described hammer parts is preferably set to the more than 1.5 times of lining weight, is more preferably set as more than 2.0 times.This is because by being made as more than 1.5 times, can bring into play better centre of gravity effect.

In addition, preferably, described weightening finish parts have the through hole running through for described screw component, and can between a plurality of weightening finish parts that vary in weight, change.

In addition, preferably, described golf clubs possesses: the first hammer parts, its can dismounting, and as described hammer parts, be configured in the position of described heel lateral; The second hammer parts, it can be dismounting, and is configured in the position of the tip side in described bar head; Under the state of face angle at described bar head in facing target, described the first hammer parts and described the second hammer parts, and are configured in respectively in the same face parallel with face in specified altitude with respect to bottom ground plane.

In addition, preferably, in described the first hammer parts and described the second hammer parts, at least one party is configured to, and can between a plurality of hammer parts that vary in weight, change.

According to the present invention, by screw component is engaged with bush threads, except can the weightening finish parts that form hammer parts together with screw component can also be installed by shaft and the link of bar head simultaneously, therefore, can make bar head realize centre of gravity design.And, owing to being the structure of weightening finish component configuration on shaft axis, thus can in the situation that not the axial moment of inertia of opposing connection shaft exert an influence, a kind of golf clubs of controlling of being easy to is provided.

In addition, only by making to hammer into shape the Heavy Weight of the weight ratio lining of parts, just can make bar head realize centre of gravity design.

And, by selecting in a plurality of weightening finish parts from varying in weight and being arranged on bar head, can most suitable weightening finish parts be installed according to user's needs and individual character, and can apply widely the present invention.

And, take the first hammer parts and the second hammer component configuration is prerequisite in heel lateral and tip side, these hammer parts are arranged in the same face parallel with face with specified altitude dismounting freely with respect to bottom ground plane, therefore, the relative weight that can change the first hammer parts and the second hammer parts is poor, and can maintain under the state of the center of gravity degree of depth and height, only make centroidal distance be subjected to displacement to tip side or heel lateral, thus, can according to user's individual character, adjust by adjusting the characteristic that relevant bar head returns.

And, by selecting in a plurality of hammer parts from varying in weight and being arranged on bar head, can most suitable hammer parts be installed according to user's needs and individual character, and can apply widely the present invention.

Accompanying drawing explanation

Fig. 1 observes the figure of the golf club head of the first embodiment from ball face side.

Fig. 2 (A) is the front view of lining, and Fig. 2 (B) is the cutaway view of screw component and the integrated hammer parts that form of weightening finish parts.

Fig. 3 is the exploded perspective view of Fig. 1.

Fig. 4 observes the figure of the golf club head of the second embodiment from ball face side.

Fig. 5 observes the figure of described golf club head from bar head bottom surface side.

Fig. 6 (A) is the top view of the first hammer parts, and Fig. 6 (B) is the front view of the first hammer parts, and Fig. 6 (C) is the upward view of the first hammer parts.

Fig. 7 (A) is the top view of the first hammer parts, and Fig. 7 (B) is the front view of the first hammer parts, and Fig. 7 (C) is the upward view of the first hammer parts.

The specific embodiment

Below, with reference to accompanying drawing, to being applied to be called the first embodiment of the invention of the golf club head of a rod, describe.

As shown in Figure 1, the bar head 10 of the golf clubs of present embodiment is set as hollow, and possesses: bar crown face 11, bar head side 12, bar head bottom surface 13 and face 14.In the inside towards bar head bottom surface 13 from heel 15 sides of bar crown face 11, be provided with integratedly the bar neck 16 of tubular, one distolateral (front) of shaft S taken in and is attached in this bar neck 16 via lining 17.

As shown in Figure 2 (A) shows, described lining 17 is configured to and possesses: the main body cylinder 20 that has the end; Socket portion 21, it possesses stage portion 21A, and this stage portion 21A is arranged in the figure upper end side of this main body cylinder 20 and is resisted against the upper end of bar neck 16; As the thin barrel part 22 of direction of insertion front, it is connected with the lower end side of main body cylinder 20, and is formed with internal thread 23 in inside.In addition, by under the state in lining 17 insertion rod necks 16, the central axis of bar neck 16 is consistent with the central axis of internal thread 23.The front of shaft S is inserted in main body cylinder 20, and this shaft S is fixed on lining 17 via bonding agent.The diameter of thin barrel part 22 is set as, and can put into the through hole 16B(of the bottom 16A that is formed on bar neck 16 with reference to Fig. 3).In addition, thin barrel part 22 is connected setting via stage portion 24 with main body cylinder 20, and stage portion 24 is resisted against on the bottom 16A of the bottom that forms bar neck 16.In addition, the weight of lining 17 is not subject to particular restriction, in the present embodiment, has used the lining of 5.7g.

In the region of the bar head bottom surface 13 of described bar head 10, in heel 15 sides, be formed with recess 13A.This recess 13A forms the opening shape of sub-circular, its central axis be configured to be positioned at the roughly the same axis of the central axis of bar neck 16 and shaft S on.The screw component 25 inserting in recess 13A is set to be screwed in the internal thread 23 in the thin barrel part 22 that is formed on lining 17, and thus, shaft S links via lining 17 and bar head 10.

On described screw component 25, around it, axially can be provided with removably counterweight WT.Counterweight WT forms cylindric substantially, in being formed at the through hole of its central portion (through hole) 27, can insert the shaft part of screw component 25.In addition, counterweight WT consists of columnar large-diameter portion and columnar minor diameter part, is formed with conical surface portion between large-diameter portion and minor diameter part.This conical surface portion is by making external diameter diminish and form gradually to minor diameter part from large-diameter portion, and the outer surface of conical surface portion is set as the conical surface 28.The conical surface 28 forms one week on the outer surface of the conical surface portion of counterweight WT cylindraceous.Pars intermedia at screw component 25 is provided with O type ring 26, counterweight WT is integrated between this O type ring 26 and the head of screw component 25 with the state that can not come off, thus, when screw component 25 links shaft S and bar head 10 via lining 17, counterweight WT must be positioned on the axis of shaft S.In addition,, when utilizing screw component 25 that hammer parts W is fixed on bar head 10, the conical surface 28 of counterweight WT contacts with the step forming on the inner surface of bar head 10 that forms recess 13A.That is to say, hammer parts W is screwed into by screw component 25, until the conical surface 28 contacts with the step of bar head 10, by the conical surface 28 is contacted with step, the central axis of counterweight WT that makes to hammer into shape parts W is consistent with the central axis of shaft S.In addition,, corresponding to form the conical surface 28 of a week around counterweight WT, the step of bar head 10 is formed with one week on the inner surface of bar head 10 that forms recess 13A.At this, hammer parts W consists of described screw component 25, counterweight WT and O type ring 26.In addition, hammer parts W is not subject to particular restriction, but in the present embodiment, from weight, is selected respectively different a plurality of hammer parts W.In more detail, in the present embodiment, hammer parts W is set to, and is comprising under the state of O type ring 26 and screw component 25, can from 7g and the 8.5g, the 10g that increase by 1.5g amplitude from it, 11.5g, 13g, 14.5g, 16g, 17.5g, 19g, 20.5g, 22g, be selected.Thus, the weight of hammer parts W can be set as than lining weight.In addition, the upper limit of hammer parts W is not restricted to 22g, as long as can fully brandish below the weight of golf clubs general linksman.

As shown in Figure 1, the golf clubs of present embodiment is around the axial arrangement counterweight WT of screw component 25, utilize O type ring 26 to make counterweight WT form one in the mode that can not come off and form hammer parts W, be configured in the recess 13A of bar head 10, and fixed shaft S by screw component 25 being screwed in the internal thread 23 of lining 17.Being screwed into so that the mode of lining 17 leading-in pole necks 16 is worked of screw component 25, can be securely fixed in lining 17 in bar neck 16.In addition, hammer parts W is owing to being to be fixed on bar head 10 under the state contacting with the step of bar head 10 at the conical surface 28, so can avoid screw component 25 loosening.

For example, the shape of the hammer parts W of described embodiment is not limited to schematic structure example, can adopt the hammer parts that possess various shapes, structure, so long as the hammer parts on shaft axis are located in dismounting freely.

In addition, object club of the present invention is not limited to rod No. one, can also be applied to fairway wood and multi-functional club, in addition, is applied in iron golf clubs also harmless.

And the correspondingly-shaped of bar neck 16 and lining 17 is not limited to illustrated structure example, lining 17 is so long as at the assigned position of bar neck 16, and to be introduced into the fixing structure of bar head bottom surface side just enough by being screwed into screw component 25.

Generally speaking, the present invention can be applied to possess shaft and via lining, be fixed on the golf clubs of the structure of bar neck.

Then, second embodiment of the invention is described.It should be noted that, the structure for identical with the first embodiment, marks identical Reference numeral, and description thereof is omitted.

Comprise the center of gravity degree of depth, height of C.G., centroidal distance of golf club head are the key elements of flight while determining to hit golf, ballistic ordinate, direction etc. at interior position of centre of gravity.

At this, " the center of gravity degree of depth " is generally used for finger, the position of centre of gravity of connecting rod head and the distance of leading edge, " height of C.G. " is generally used for finger, the distance that links sweet spot and leading edge, " centroidal distance " is generally used for finger, links by center of gravity and is orthogonal to straight line and the intersection point of shaft axis and the distance of position of centre of gravity of shaft axis.The center of gravity degree of depth is the key element that determines moment of inertia, and in addition, the height (getting angle) that height of C.G. is considered to trajectory brings the key element of impact.In addition, according to center of gravity, be near tip or near heel, the complexity that bar head returns is different, and centroidal distance is the key element that the direction that flies out of ball is exerted an influence.

The second embodiment is a kind ofly can utilize the hammer parts W using in the first embodiment, lowers the golf club head of center of gravity distance in the situation that does not change the center of gravity degree of depth and height of C.G..

In Fig. 4, in the region of the bar head bottom surface 13 of described golf club head 10, in heel 15 sides and tip 19 sides, be formed with

recess

13A, 13B, in these

recesses

13A, 13B, dispose respectively the first hammer parts WA and the second hammer parts WB.At this, recess 13A is positioned on the axis of bar neck 16, and when the first hammer parts WA is disposed at recess 13A, these the first hammer parts WA is positioned on the central axis of shaft S.In addition, the second recess 13B is located on the axis parallel with recess 13A, and, in its top side, be formed with for being screwed into fixing thread barrel 18 for the second hammer parts WB.

Described the first hammer parts WA and the second hammer parts WB are not subject to particular restriction, are in the present embodiment different a plurality of hammer parts, to select respectively from weight.Under the state of face angle at golf club head 10 in facing target, these hammers parts WA, WB with respect to bar head bottom ground plane S in specified altitude H(with reference to Fig. 4), and as shown in Figure 5, by dismounting, be located at freely the straight line L2 parallel with the straight line L1 that is tangential on face 14 respectively upper, in the same face parallel with face.Briefly, the first hammer parts WA and second hammers parts WB into shape respectively in sustained height position, and is configured in root 15 sides and tip 19 sides in bar head bottom surface 13.At this, the first hammer parts WA and the second hammer parts WB are configured in sustained height position and refer to, the first hammer parts WA and the second hammer parts WB center of gravity are separately positioned in fact equal height position.In addition, the first hammer parts WA and the second hammer parts WB are located in the same face and refer to, the first hammer parts WA and the second hammer parts WB center of gravity are separately positioned in fact on straight line L2.And, the first hammer parts WA and the second hammer parts WB is configured in respectively root 15 sides and tip 19 sides refer to, as shown in Figure 4, the first hammer parts WA is configured in than the position of the more close root 15 in position of the position of centre of gravity P of bar head when root 15 is observed, and the second hammer parts WB 19 is configured in than the position of the more close tip 19, position of the position of centre of gravity P of bar head while observing from tip.

As Fig. 6 and with as shown in the of 7, described the first hammer parts WA and the second hammer parts WB comprise respectively identical screw component 25.First hammers parts WA into shape can supply the first counterweight WT1 that this screw component 25 run through to form by screw component 25 with being set as, and the second hammer parts WB can supply the second counterweight WT2 that this screw component 25 run through to form by screw component 25 with being set as.In the present embodiment, the first counterweight WT1 is formed by tungsten and the weight of the first hammer parts WA is 23g, and the second counterweight WT2 is formed by aluminium and the weight of the second hammer parts WB is set to 3g.Screw component 25 is screw components of mutually the same weight, but by adopting the first counterweight WT1 and the second counterweight WT2 of Different Weight, a plurality of hammer parts that can prepare out to vary in weight.In more detail, the first counterweight WT1 is configured to and can between the mutual different a plurality of counterweights of weight, changes, one in a plurality of the first counterweights is that counterweight WT1A1(is not shown) with a plurality of counterweights in another one be that counterweight WT1A2(is not shown) vary in weight, but they all form and make screw component 25 in inside, pass and can insert the shape in recess 13A, for example, the profile of counterweight WT1A1 can form with counterweight WT1A2 roughly the same.In this case, for example, by making counterweight WT1A1 different from the material of counterweight WT1A2, can form the weightening finish parts that vary in weight.In addition, in addition, also can make the profile of counterweight WT1A1 different from the profile of counterweight WT1A2, so long as in the situation that counterweight WT1A1 is become to counterweight WT1A2, can only make centroidal distance change and the center of gravity degree of depth and the height of C.G. of bar head are constant in fact.

Described screw component 25 consists of with a distolateral head 31 that is positioned at this screw rod 30 screw rod 30 that possesses external screw thread 30A in front periphery.In addition, as shown in Fig. 6 (B), the first counterweight WT1 forms tubular, and the length of this tubular is half left and right of the length of screw component 25, and head 31 is can counterrotating state to be positioned at the 35B of large diameter portion of the through hole 35 consisting of little inside diameter 35A and the 35B of large diameter portion.In addition, around screw rod 30, be fixed with the C type ring 36 that anticreep is used.

In addition, the second counterweight WT2 is only different from the first counterweight WT1 aspect circumferential profile, identical with the first counterweight WT1 in fact, has the through hole 35 consisting of little inside diameter 35A and the 35B of large diameter portion, and the head 31 of screw component 25 is positioned at the 35B of this large diameter portion.In addition, on the screw rod 30 of the second hammer parts WB, be also fixed with C type ring 36.

As shown in Figure 4, the golf club head 10 of present embodiment configures respectively the first hammer parts WA, the second hammer parts WB in

recess

13A, 13B, the external screw thread 30A of the first hammer parts WA is screwed in the internal thread part 23 that is located at lining 17 bottoms, on the other hand, the external screw thread 30A of the second hammer parts WB is screwed in the thread barrel 18 of recess 13B, thereby is fixed.The first the above-mentioned of hammer parts WA is screwed into that the mode of lining 17 leading-in pole necks 16 is worked, and the fixing lining 17 of shaft S can be securely fixed in to bar neck 16.

Then, to the centroidal distance GL(that changes present embodiment with reference to Fig. 4) situation describe.

First, the first hammer parts WA and the second hammer parts WB, on the straight line L of sustained height H, are positioned at the same face on the straight line L2 parallel with the straight line L1 that is tangential on face 14, and the first hammer parts WA is being made as to 23g, when the second hammer parts WB is made as 3g, bar is nose heave heart position P point in Fig. 4.

At this, for example, by changing the first hammer parts WA or the second hammer parts WB, increase the weight difference of the first hammer parts WA and the second hammer parts WB, can make position of centre of gravity P be subjected to displacement (movement) to heel 15 sides.On the other hand, poor by making the weight difference of the first hammer parts WA and the second hammer parts WB be less than initial weight, 19 sides are subjected to displacement to tip can to make position of centre of gravity P.

Therefore, by position of centre of gravity is subjected to displacement to heel 15 sides or tip 19 sides, the size of centroidal distance GL changes, thus can change take shaft S during as pivot bar head return to the namely complexity of returning of tip 19.Thus, for example, in the situation that return to thering is tip 19 linksman who tends to slack-off shortcoming, can be by making the second hammer parts WB relatively lighten and easily overcome the deficiency than initial setting is further.

In addition,, in the situation that the gross weight of the first hammer parts WA and the second hammer parts WB is than initial setting Heavy Weight, the quality of bar head integral body also rises, as long as therefore can maintain same bar head speed, just also contributes to extend flight.In addition, in the above description, the first hammer parts WA and the second hammer parts WB are configured on the straight line L of sustained height, but this is not to be defined as the first hammer parts WA and the second hammer parts WB is configured on sustained height completely, therefore, do not get rid of the situation that the first hammer parts WA and the second hammer parts WB are configured in fact sustained height.For example, in the situation that the first counterweight WT1 of the first hammer parts WA is changed to other counterweight (varying in weight), can make the position of centre of gravity of the first hammer parts WA change before changing and after changing.The object of present embodiment is, the center of gravity degree of depth and height of C.G. constant in fact (constant as far as possible) in the situation that, by making position of centre of gravity P be subjected to displacement to change centroidal distance GL.Therefore, the present invention can be applicable to, and the first hammer parts WA is configured in fact respectively equal height H with the second hammer parts WB and the first hammer parts WA is configured in fact the golf club head in the same face parallel with face with the second hammer parts WB.

By above record, disclose for implementing the contents such as optimum structure of the present invention, method, but the invention is not restricted to this.

That is, the present invention is directed to specific embodiment and carried out especially diagram and explanation, but within not departing from the scope of technological thought of the present invention and object, those skilled in the art can implement various changes to embodiment described above.

For example, the first hammer parts WA of described embodiment, the face shaping of the second hammer parts WB are not limited to schematic structure example, can adopt the hammer parts that possess various shapes, structure, so long as regulation position is located in dismounting freely.In addition, the material of weightening finish parts also can tungsten and aluminium material in addition.

In addition, object club of the present invention is not limited to rod No. one, can also be applied to Fairway Woods and multi-functional club, in addition, is applied in iron golf clubs also harmless.

Generally speaking, the present invention can carry out various design alterations, so long as the structure that only makes centroidal distance change.

Claims

1. a golf clubs, is characterized in that, possesses:

Bar head;

Shaft, it is bonded via lining, and this lining can insert in the bar neck that is formed on heel lateral of described bar head;

Screw component, it is attached at described lining the bottom of described bar neck;

Described bar head has the recess on the central axis that is positioned at described bar neck on bar head bottom surface,

At weightening finish parts and described screw component, form one and form under the state of hammer parts, the direction of insertion leading section to described lining runs through the described bottom of described bar neck from described recess to make described screw component, and engage with the described direction of insertion leading section screw thread of described lining, thereby described shaft is fixed on described bar head.

2. golf clubs as claimed in claim 1, is characterized in that,

Described lining has the internal thread part forming at described direction of insertion leading section,

The central axis of described internal thread part is consistent with the central axis of described bar neck.

3. golf clubs as claimed in claim 1, is characterized in that,

The central axis of the recess of described bar head is consistent with the central axis of described bar neck.

4. golf clubs as claimed any one in claims 1 to 3, is characterized in that,

The Heavy Weight of lining described in the weight ratio of described hammer parts.

5. golf clubs as claimed any one in claims 1 to 3, is characterized in that,

Described weightening finish parts have the through hole running through for described screw component, and can between a plurality of weightening finish parts that vary in weight, change.

6. golf clubs as claimed any one in claims 1 to 3, is characterized in that,

Described golf clubs possesses:

The first hammer parts, it can dismounting, and as described hammer parts, is configured in the position of described heel lateral;

The second hammer parts, it can dismounting, and is configured in the position of the tip side in described bar head;

Under the state of face angle at described bar head in facing target, described the first hammer parts and described the second hammer parts, and are configured in respectively in the same face parallel with face in specified altitude with respect to bottom ground plane.

7. golf clubs as claimed in claim 6, is characterized in that,

In described the first hammer parts and described the second hammer parts, at least one party is configured to, and can between a plurality of hammer parts that vary in weight, change.