WO2007022671A1

WO2007022671A1 - A golf club, a club head and a main body thereof

Info

Publication number: WO2007022671A1
Application number: PCT/CN2006/000542
Authority: WO
Inventors: Donghua Chai
Original assignee: Donghua Chai
Priority date: 2005-08-22
Filing date: 2006-03-29
Publication date: 2007-03-01
Also published as: US20080280693A1

Abstract

A golf club comprises a club head and a club shaft, in which, the head includes a main body with a top hole arranged in a top portion thereof and a bottom hole corresponding to the top hole in a bottom portion of the same, and also includes a joint, one end of which is an insertion end inserted into and located by a Location structure within the top hole, and connected with a fastener arranged at the bottom of the main body, the other end of which is fixedly secured to the shaft. The fixedly secured joint portion passes through a passage communicating with the top hole and the bottom hole. The above arrangement is convenient for the detachment of the golf shaft and the random combination of the head and the shaft.

Description

Golf club, club head and club head body thereof

Field of the Invention This invention relates to the field of sports equipment and, more particularly, to a golf club, a club head of such a golf club, and a body of the club head. Background technique

The golf club is composed of a club head and a shaft, and is generally made in one piece and cannot be split. When hitting a golf ball, the impact of the different specifications of the shaft on the shot is very significant, so the golf clubs that manufacturers and specialty stores need to provide should have a combination of different specifications of the shaft and different specifications of the club head. For selection. The traditional club head and shaft are connected by glue. After the glue is completed, it usually needs to wait for a certain period of time before use. If the shaft or the club head is not suitable, the shaft needs to be removed from the club head. If you remove it, the shaft is often destroyed. Therefore, the club head and the shaft in the existing golf club are inseparable or inconvenient to be separated, which makes the selection of the golf club a very complicated matter, and selecting a suitable golf club is not only time-consuming, And it will add extra expenses because the club is not suitable for re-purchase.

Summary of the invention

The technical problem to be solved by the present invention is that a golf club having a simple structure and being easily disassembled is provided for the inability to be disassembled or disassembled between the club head and the shaft of the prior art.

The technical solution adopted by the present invention to solve the technical problem is to construct a golf club including a club head and a shaft, the club head including a body and a connecting member, and the top of the body is provided with a top hole and a bottom portion. a bottom hole corresponding to the top hole; one end of the connecting member is an insertion end, and the other end is opposite to the rod a fastening connection, the connector insertion end is inserted and positioned in the top hole of the body by a positioning structure, and is fastened to a fastener provided at the bottom of the body, and the connection portion of the fastening connection passes through a communication center A communication passage between the top hole and the bottom hole of the club head body.

In the golf club of the present invention, the bottom hole of the club head body is a counterbore, and the fastener is disposed in the bottom hole.

In the golf club of the present invention, the bottom end of the club head body and the communication passage are combined into a through hole, and the fastener is disposed on the outer surface of the club head near the bottom hole.

In the golf club of the present invention, the club head body is hollow, the bottom hole is a through hole, the communication passage is an upper connection hole provided at a bottom of the top hole, and the fastener is disposed at The inner surface of the club head near the upper connecting hole.

In the golf club of the present invention, the fastening connection between the connector insertion end and the fastener is a threaded connection.

In the golf club according to the present invention, the fastener is a bolt, and the insertion end of the connector is provided with a threaded hole that cooperates with the bolt, and the connection portion of the fastening connection is a threaded portion of the bolt .

In the golf club according to the present invention, the fastener is a nut, and the insertion end of the connector is provided with a threaded portion that cooperates with the nut, and the connection portion of the fastening connection is the insertion end of the connector Threaded part.

In the golf club of the present invention, the positioning structure includes intermeshing internal and external teeth disposed between the top hole hole wall of the club head body and the insertion end of the connector, and the connecting member A shoulder disposed at the insertion end that is positioned at the top of the club head body.

In the golf club of the present invention, the inner and outer teeth are intermeshing tapered teeth.

In the golf club of the present invention, a cooperating tapered surface is provided between the club head top hole and the connector insertion end. Another technical solution adopted by the present invention to solve the technical problem thereof is: providing a golf club including a club head and a shaft, the club head including a body and a connecting member, and the top of the body is provided with a top hole a bottom hole corresponding to the top hole; the shaft passes through a center hole disposed at a center of the connecting member, and is closely matched with the connecting member to form an insertion end, and the insertion end is inserted and passed through The positioning structure disposed on the connecting member is positioned in the top hole of the body, and the insertion end is fixed on the club head by a fastening connection between the shaft and the bottom of the body, and the fastening connection is The connecting portion passes through a communication passage that communicates with the top hole and the bottom hole of the club head body.

Another technical problem to be solved by the present invention is to provide a club head for a universal golf club that is assembled into a golf club with various shafts.

The technical solution adopted by the present invention to solve another technical problem is to provide a club head of a golf club, the club head includes a body and a connecting member, and the top of the body is provided with a top hole and a bottom portion a bottom hole coaxial with the top hole, the top hole and the bottom hole communicate; the connecting member is inserted and positioned in the top hole of the body through the positioning structure, and the fastener disposed at the bottom of the body is tight The solid connection, the connection portion of the fastening connection passes through a communication passage that communicates with the top hole and the bottom hole of the club head body.

In the club head of the golf club of the present invention, the inner and outer teeth are engaged with each other between the body top hole and the connector insertion end.

In the club head of the golf club of the present invention, a mating tapered surface is provided between the body top hole and the connector insertion end.

Still another technical problem to be solved by the present invention is to provide a club head body for constituting the above golf club.

The technical solution adopted by the present invention to solve still another technical problem is to provide a club head body of a golf club, the top of the club head body is provided with a top hole, and the bottom portion is provided with a bottom coaxial with the top hole a hole, the bottom hole is a counterbore, and the top hole and the bottom hole communicate with each other. In the club head body of the golf club according to the present invention, the hole wall of the top hole is provided with a tapered tooth. The golf club embodying the present invention has the following beneficial effects: the fastening member is fastened from the bottom of the club head body to the connecting member inserted into the top of the club head body, thereby the shaft body closely fitting with the connecting member It is fixed on the club head body, and the club head body and the connecting member can be assembled and disassembled in a time-saving and labor-saving manner. In the club selection process, different club heads and shafts can be freely selected, freely combined, and various parts of the club can be used repeatedly without damage, thereby saving time for selecting clubs and reducing various purchases. The expenditure of the specification golf club. The fastener is provided as a bolt or a nut, and the fastening connection is a threaded connection, so that when the club head body and the connecting member of the golf club are assembled, the assembly and disassembly can be conveniently performed by a common tool.

DRAWINGS

The golf club, the club head and the club head body of the present invention will be further described below with reference to the accompanying drawings and embodiments.

1 is a schematic structural view of a first embodiment of a golf club according to the present invention;

Figure 2 is a schematic structural view of a second embodiment of the golf club of the present invention;

Figure 3 is a schematic structural view of a third embodiment of the golf club of the present invention;

Figure 4 is a schematic structural view of a fourth embodiment of the golf club of the present invention;

Figure 5 is a schematic view showing the structure of a fifth embodiment of the golf club of the present invention.

detailed description

A specific embodiment of the golf club, the club head and the club head body of the present invention will now be described in further detail with reference to the accompanying drawings.

As shown in FIG. 1, in a first embodiment of the golf club of the present invention, a club head 20, a shaft 90 and a fastener 30 are included, wherein the club head 20 includes a body 10 and a connector 80. . The top of the club head body 10 is provided with a top hole 40, and the bottom portion is provided with a bottom hole 50 corresponding to the top hole 40, the bottom The hole 50 is disposed coaxially with the top hole 40, and the bottom hole 50 and the top hole 40 communicate with each other through the communication passage 60. The club head body 10 can be designed to different sizes and shape specifications according to actual needs.

The shaft 90 can also be designed to different lengths and specifications according to actual needs. One end of the connector 80 is an insertion end 70 that is inserted into the top hole 40 of the club head body, and the insertion end 70 is positioned in the top hole 40 by a positioning structure. The positioning structure is arranged as follows: the connector insertion end 70 is provided with a positioning shoulder 71, and the shoulder 71 is preferably in contact with the top of the body top hole 40 to define the insertion end 70 at the top. The hole 40 is moved downward; the shoulder 71 can also sink into the top hole 40 to contact the step provided in the top hole 40 to define the insertion end 70 to move downward in the top hole 40. The insertion end 70 is further provided with a rib 72, and a slot 42 for accommodating the rib 72 is disposed at a position corresponding to the rib 72 in the top hole 40. The rib 72 is inserted in the slot 42 to define circumferential rotation of the connector 80. .

The top hole 40 may be a counterbore, that is, the diameter of the top hole is larger than the diameter of the bottom hole of the top hole, that is, the diameter of the top hole is larger than the diameter of the connecting passage; or the through hole may be a hole, that is, the diameter of the top hole is equal to or smaller than The diameter of the bottom hole of the top hole, that is, the diameter of the top hole is equal to or smaller than the diameter of the communication passage. The bottom hole 50 is a counterbore, that is, the diameter of the bottom hole is larger than the diameter of the bottom hole of the bottom hole, that is, the diameter of the bottom hole is larger than the diameter of the communication passage. The fastener 30 is disposed in the bottom hole 50, and the fastener 30 is fastened to the insertion end 70, and the connection portion of the fastening connection passes through the communication passage 60 of the club head body 10. Preferably, the fastening connection is a threaded connection, and the fastener 30 is preferably a bolt, and the threaded portion 31 of the bolt is the connection portion of the fastening connection, and the threaded portion 30 passes through the communication passage 60. To the top hole 40, a threaded hole provided at an end of the insertion end 70 is fastened. The bolt may be a head of a hexagon socket or a head of an outer hexagon; or a threaded fastener such as a Phillips screw or a slotted screw. The fastener 30 may also be a nut, such as the fastening connection portion shown in FIG. 5, the insertion end 70 passing through the communication passage 60 into the bottom hole 50 to form the fastening connection. Even Connection. The nut is fastened to the external thread provided at the end of the insertion end 70 to fix the connector 80 to the club head body 10. When it is necessary to replace or assemble, it is only necessary to disassemble the fastener 30 from the bottom hole 50. Users can freely choose the shaft and club head that suits their needs, which is convenient to use and reduces the expenditure for purchasing various types of golf clubs.

As shown in FIG. 2, in the second embodiment of the golf club of the present invention, the club head 20, the shaft 90 and the fastener 30 are also included, wherein the club head 20 includes a body 10 and a connection. Item 80. The top of the club head body 10 is provided with a top hole 40, and the bottom portion is provided with a bottom hole 50 corresponding to the top hole 40. The bottom hole 50 is coaxially disposed with the top hole 40, and the bottom hole 50 and the top hole The holes 40 communicate with each other through a communication passage. Different from the first embodiment, in the interior of the club head body 10, a certain gap 1 is defined between the top hole 40 and the bottom hole 50; and the top hole 40 is provided with an upper connection at the bottom. a hole 41; a bottom connecting hole 51 is provided at the bottom of the bottom hole 50. A communication passage connecting the top hole 40 and the bottom hole 50 is composed of the upper connecting hole 41, the lower connecting hole 51, and a gap 1 between the top hole and the bottom hole. The fastening connection may be provided as described in the first embodiment, that is, the bolt is fastened to the insertion hole 70 through the communication passage to the top hole 40, or the external thread of the insertion end 70 A portion is passed through the communication passage 60 to the bottom hole 50 to be fastened to the nut. As shown in FIG. 2, the fastening connection may also be arranged such that the insertion end 70 passes through the upper connecting hole 41 to a gap between the top hole 40 and the bottom hole 50, and the bolt passes through a gap between the lower connecting hole 51 to the top hole 40 and the bottom hole 50; the bolt and the insertion end 70 are fastened at the gap. Preferably, the void is naturally formed by the hollow club head body 10. '

In the first and second embodiments described above, when the golf club is of the type used by the right-hand occupant, the threaded fastening connection is preferably a left-hand threaded connection; when the golf club is a type used by a left-hand occupant Preferably, the threaded fastening connection is a right-handed connection, such that the instantaneous impact force during the ball striking makes the threaded connection lock tighter, preventing the fastener 30 from falling off; A sheet or the like prevents loosening of the fastening connection.

In the above first and second embodiments, the bottom hole 50 is preferably provided as a counterbore, the shoulder 71 of the insertion end 70 is in contact with the edge of the top hole 50, and the fastener 30 is disposed in the The bottom of the bottom hole 50 allows the shoulder 71 and the fastener 30 to sink into the club head body 10 without protruding the outer surface of the club head body 10 to affect the normal hitting, and ensures the overall Beautiful.

As shown in FIG. 3, in the third embodiment of the golf club of the present invention, the club head 20, the shaft 90 and the fastener 30 are also included, wherein the club head 20 includes a body 10 and a connection. Item 80. As shown in the first and second embodiments, the top of the club head body 10 is provided with a top hole 40, and the bottom portion is provided with a bottom hole 50 corresponding to the top hole 40, the bottom hole 50 and the top hole 40 coaxially disposed, the bottom hole 50 and the top hole 40 communicate with each other through a communication passage. However, the positioning structure in which the connector insertion end 70 is positioned in the top hole is different from that described in the first and second embodiments: the insertion end 70 is also provided with a shoulder 71 that restricts axial movement of the connector 80. However, the limit of the circumferential rotation is achieved by the internal teeth 43 and the external teeth 73 which are disposed to mesh with each other between the hole wall of the club head body top hole 40 and the connector insertion end 70. Preferably, the inner teeth 43 and the outer teeth 73 are straight teeth along the axial direction of the top hole 40, and the tooth cross-sectional shape is preferably rectangular. The intermeshing inner and outer teeth cause the positioning structure to have good shear resistance when the hitting ball produces a momentary impact force, so that the insertion end 70 of the connecting member 80 can be effectively positioned on the club head body 10. In the top hole 40. Of course, the inner teeth 43 and the outer teeth 73 may be helical teeth that are engaged with each other, and the tooth cross-sectional shape may be other shapes such as an involute or a trapezoid. The positioning structure between the connector insertion end 70 and the body top hole 40 in the above first and second embodiments may also be provided with a structure in which the inner and outer teeth are engaged as in the embodiment.

In this embodiment, the bottom hole 50 of the club head body 10 and the communication passage connecting the top hole 40 and the bottom hole 50 are combined into one through hole 2, that is, the communication passage extends downward to the The bottom surface of the club head body 10. a step 3 is disposed at a bottom of the club head body 10 near the through hole 2, The fastener 30 is disposed at the step 3 to be fastened to the connector insertion end 70. The fastening connection can be provided as a threaded connection or other fastening connection as described in the first and second embodiments; likewise, the fastening connection can also be provided as described in the first and second embodiments.

A fourth embodiment of the golf club according to the present invention is shown in Fig. 4, which is a preferred embodiment of the present invention. The club head body 10, the connector 80 and the fastener 30 are also included in this embodiment. The bottom of the club head body 10 is provided with a top hole 40, and the bottom is provided with a bottom hole 50 corresponding to the top hole 40. The bottom hole 50 is coaxially disposed with the top hole 40, and the bottom hole 50 is disposed. It communicates with the top hole 40 through the communication passage 60. The club head body 10 is hollow, the top hole 40 is a counterbore, and the bottom hole 50 is a through hole. The bottom hole 50 has a hole size larger than the outer shape of the fastener 30, that is, the Fasteners 30 can pass through the bottom aperture 50 and fully into the interior cavity of the club head body 10. The bottom of the top hole 40 is provided with an upper connecting hole 41 connecting the top hole 40 to the inner cavity of the club head body 10, and the connecting passage 60 is formed by the upper connecting hole 41 and the top hole 40 and the bottom hole 50. The composition between the cavities. The top hole may be a counterbore, that is, the hole diameter of the top hole is larger than the hole diameter of the connecting hole provided at the bottom of the top hole, and the fastener is limited to the thin head wall of the bottom hole of the top hole. One side of the inner cavity; the top hole may also be a through hole, that is, the top hole hole wall directly extends into the inner cavity of the club head body, and the fastener may be limited by the gasket at this time The end of the top hole wall is directly or at the end of the top hole wall to secure the connector in the top hole.

One end of the connecting member 80 is an insertion end 70, and the positioning structure between the insertion end and the club head body top hole 40 can be set as described in the first, second and third embodiments. Different from the first, second and third embodiments, the fastening connection structure between the insertion end 70 and the fastener 30 is different: the fastener 30 passes through the bottom hole 50 of the club head body. The inner surface of the club head body 10 disposed near the upper connecting hole 41 is fastened to the insertion end 70 of the connecting member 80. The fastening portion of the fastening connection passes through the upper connection hole 41 as in the first, second and third embodiments described above; the fastening connection The connection is also as described in the first, second and third embodiments, preferably a threaded connection; the fastener

30 can also be a nut, preferably a bolt.

As shown in FIG. 4, in the present embodiment, a mating tapered surface 4 is disposed between the connector insertion end 70 and the club head body top hole 40. When installed, the connecting member 80 can be automatically guided into the top hole 40, making installation more convenient. Such a tapered fit can also be provided in the first, second and third embodiments described above.

When the tapered surface is fitted into the positioning structure between the connector insertion end 70 and the club head body top hole 40, the fifth embodiment of the golf club of the present invention is formed, as shown in FIG. . At this time, the circumferentially rotating positioning structure between the club head body top hole 40 and the connector insertion end 70 is the inner and outer tooth structure in the third embodiment, and the inner teeth 43 and the outer teeth 73 For the intermeshing tapered teeth 5, the tapered teeth 5 can achieve the positioning effect of restricting the circumferential insertion of the connector insertion end 70 in the club head body top hole 40, and can also automatically insert the connecting member 80 into the top. In the hole 40.

In the first to fifth embodiments of the golf club of the present invention, one end of the connecting member 80 is the connector insertion end 70, and the other end thereof is fixedly coupled to one end of the shaft 90 by gluing or the like. , As shown in Figure 4. The connecting member 80 may be provided with a fastening connection structure of the connector insertion end 70 and the fastener 30 in the first to fifth embodiments as described above, between the connector insertion end 70 and the club head body top hole 40. Positioning structure. By providing the above-mentioned fastening connection and positioning structure in a single piece, the connecting member 80, the fastening structure and the positioning structure are facilitated to be processed, thereby reducing the processing difficulty and reducing the manufacturing cost. Of course, the connector 80 and the shaft 90 can also be made in one piece.

As shown in FIG. 5, in the first to fifth embodiments of the golf club of the present invention described above, the connecting member

80 is provided with a central hole 81 through which one end of the shaft 90 passes, and the end of the shaft 90 is provided with a fastening connection structure of the insertion end 70 in the first to fifth embodiments as described above, and The fastener 30 is securely coupled. An interference fit or glue or welding between the shaft 90 and the center hole 81 of the connecting member The way is closely matched. The connector 80 and the shaft 90 together form an insertion end 70 that is inserted into the club head jack 40. The connecting member 80 is provided with a positioning structure of the insertion end 70 in the first to fifth embodiments as described above, so that the connecting member 80 can be positioned in the top hole 40 of the club head body 10 by the positioning structure. As such, the positioning structure between the insertion end 70 and the club head body top hole 40 is disposed on the connecting member 80, and the fastening connection structure between the insertion end 70 and the fastener 30 is disposed in the The shaft is 90.

In the above embodiment of the golf club of the present invention, the fasteners 30 may be provided in different weights to adjust the weight of the golf club as a whole to improve the hitting effect.

The golf club head of various specifications can be formed by referring to the club head structure disclosed in the golf club embodiment described above in cooperation with various shafts.

Similarly, the club head body structure disclosed in the golf club embodiment described above and the mating connector can be combined to form the club head of the golf club.

In the golf club of the present invention, the fastening connection between the connecting member 80 and the fastener 30 on the club head body 10 is not limited to the manner disclosed in the above embodiments, as long as the connecting member 80 It is within the scope of the invention to insert from the top hole 40 of the club head body 10 and to fasten the fastener 30 provided at the bottom of the club head body 10 in the communication passage 60.

Claims

Rights request

A golf club, comprising a club head and a shaft, wherein the club head comprises a body and a connecting member, the top of the body is provided with a top hole, and the bottom portion is provided corresponding to the top hole a bottom hole; the connecting member has an insertion end at one end, and the other end is fastened to the shaft, the insertion end of the connector is inserted and positioned in the top hole of the body through the positioning structure, and the bottom of the body The fastener is provided with a fastening connection, and the connection portion of the fastening connection passes through a communication passage that communicates with the top hole and the bottom hole of the club head body.

2. The golf club according to claim 1, wherein the sole hole of the club head body is a counterbore, and the fastener is disposed in the bottom hole.

3. The golf club according to claim 1, wherein the sole hole of the club head body and the communication passage are combined into a through hole, and the fastener is disposed at a club near the bottom hole. The head body is the surface of the body.

The golf club according to claim 1, wherein the club head body is hollow, the bottom hole is a through hole, and the communication passage is an upper connecting hole provided at a bottom of the top hole. The fastener is disposed on the inner surface of the club head body near the upper connecting hole.

A golf club according to any one of claims 1 to 4, wherein the fastening connection between the connector insertion end and the fastener is a threaded connection.

The golf club according to claim 5, wherein the fastener is a bolt, and the insertion end of the connector is provided with a threaded hole that cooperates with the bolt, and the connection portion of the fastening connection is a threaded portion of the bolt.

The golf club according to claim 5, wherein the fastener is a nut, and the insertion end of the connector is provided with a threaded portion that cooperates with the nut, and the connection portion of the fastening connection is Place The threaded portion of the insertion end of the connector.

8. The golf club according to claim 5, wherein the positioning structure comprises intermeshing internal and external teeth disposed between the top hole wall of the club head body and the insertion end of the connector. And a shoulder disposed at the insertion end of the connector and positioned at the top of the club head body.

9. The golf club according to claim 8, wherein the inner and outer teeth are intermeshing tapered teeth.

The golf club according to claim 5, wherein a cooperating tapered surface is provided between the club head top hole and the connector insertion end.

A golf club, comprising a club head and a shaft, wherein the club head comprises a body and a connecting member, the top of the body is provided with a top hole, and the bottom portion is provided corresponding to the top hole a bottom hole; the shaft passes through a central hole provided in the center of the connecting member, and cooperates with the connecting member to form an insertion end, and the insertion end is inserted and positioned by the positioning structure disposed on the connecting member In the top hole of the body, the insertion end is fixed on the club head by a fastening connection between the shaft and the bottom of the body, and the connecting portion of the fastening connection communicates with the club head The communication channel between the top hole and the bottom hole of the body.

12. A club head for a golf club, characterized in that the club head comprises a body and a connecting member, the top of the body is provided with a top hole, and the bottom portion is provided with a bottom hole coaxial with the top hole, Connecting between the top hole and the bottom hole; the connecting member is inserted and positioned in the top hole of the body through the positioning structure, and is fastened to the fastener provided at the bottom of the body, the connection of the fastening connection The passage passes through a communication passage connecting the top hole and the bottom hole of the club head body.

13. The club head of a golf club according to claim 12, wherein the inner top hole and the connector insertion end are provided with intermeshing internal teeth and external teeth.

14. The club head of a golf club according to claim 12, wherein: said body A matching tapered surface is provided between the top hole and the insertion end of the connector.

A club head body for a golf club, wherein a top hole is formed on a top of the club head body, and a bottom hole coaxial with the top hole is disposed at a bottom portion, wherein the bottom hole is a counterbore The top hole and the bottom hole communicate with each other.

16. The club head body of a golf club according to claim 15, wherein the hole wall of the top hole is provided with a tapered tooth.