Structure of shaft-replacing fitting of golf club(3)

Golf club changing rod joint structure (3)

The utility model relates to a club changer joint structure of a golf club, in particular to a club changer joint structure applied to provide a club head and a shaft for club change.

With the vigorous development of golf, the structure and materials of golf clubs have also progressed. In order to make golf clubs meet the needs of each user, and to allow users to choose the right combination of head and shaft according to the conditions at the time of golf, the research and development manufacturers of golf clubs have actively developed Golf club with quick-change function.

Please refer to FIG. 1, which is a schematic diagram of a conventional golf club's changeover joint structure. One of the golf clubs 10 having a quick-change function disclosed in U.S. Patent Publication No. 7083529 includes a head 12 and a shaft 14, and the head 12 and the shaft 14 are connected by a change-over joint structure 16 for quick change. The rod, wherein the rod changing joint structure 16 includes a set of rod bushings 18, a tube base 20 and a locking screw 22. One end of the group rod bushing 18 has an opening 24. The shaft 14 is inserted into the opening 24 and is fixed by being combined with the group rod bushing 18 by gluing. The socket 20 is embedded in the head 12 and fixed in the head 12 by gluing. After the group bushing 18 is inserted into the socket 20, the locking screw 22 is used to lock the group bushing 18 to the socket 20, so as to achieve the function of quickly changing the club head 12 and the shaft 14.

However, when the conventional golf club is hit again and again, the locking screw 22 is easily loosened slowly, which affects the fixing effect of the head 12 and the shaft 14 and affects the performance of the ball. It is serious. The time will cause the club head 12 to separate from the club body 14 and cause the risk of accidental injury.

In view of this, in order to solve the above problem, the present invention provides a golf club's club changer joint structure, which uses an anti-rotation outer screw against the lock inner screw to prevent the impact of the lock inner screw slowly loosening. Fixed effect of golf club head and shaft.

In order to achieve the above-mentioned object, the present invention provides a club changer joint structure for a golf club, which is used to provide a club head and a shaft for club change. The inventive golf club's club change joint structure includes a positioning mechanism, a set of bushings, a locking inner screw and an anti-rotation outer screw. The positioning mechanism is fixed on the head and has a flange inside. One end of the group rod bush is connected and fixed to the shaft, and the other end is provided with a first male thread. The group rod bush is inserted into the positioning mechanism and abuts against the flange. The locking inner screw system includes a screw hole, and one end of the first male thread of the group rod bushing is inserted into the positioning mechanism. The screw hole of the locking internal screw system is screwed with the first male thread of the group rod bushing to lock. With shaft attached to the set of bushings. The outer surface of the anti-rotation outer screw is provided with a second male thread corresponding to a female thread in the head. The second male thread is screwed with the female thread by the second male thread, and the anti-rotation outer screw is against the lock attachment. Screws.

In order to achieve the above object, the present invention also provides a golf club joint changing structure, which is used to provide a golf club head and a shaft for club changing. The golf club's club changer joint structure consists of a socket, a set of bushings, a locking inner screw and an anti-rotation outer screw. The pipe seat is arranged on the head, and includes a flange, and the flange has a bearing surface and a positioning hole in the bearing surface. The assembly rod bush is inserted into the pipe seat, one end of which is connected and fixed to the shaft, and the other end is provided with a screw hole. The locking inner screw has a screw head, which is positioned by a positioning hole and screwed with the screw hole of the group rod bushing, and the screw head is against the abutment surface to lock the rod connected to the group rod bushing. body. The outer surface of the anti-rotation outer screw has a first male thread corresponding to a first female thread in the head. The anti-rotation outer screw is screwed with the first female thread by the first male thread, and prevents the rotation. The outer screw is against the screw head of the inner screw.

This creation of the golf club's changeover joint structure uses anti-rotation outer screws against the lock inner screws to prevent the golf club from slowly loosening after the swing of the golf ball. The fixed effect of the head and the shaft affects the performance of the ball, and it can avoid the risk of accidental injury due to the detachment of the head from the shaft.

In order to have a better understanding of the purpose, structure and function of this creation, here are the detailed descriptions of the related embodiments and drawings: Please refer to FIG. 2 and FIG. 3 at the same time, which are the golf clubs of the first embodiment of the creation. Exploded view of the changeover joint structure and a cross-sectional view of the clubhead and shaft using the changeover joint structure of the golf club of the first embodiment of the present invention. The club changer joint structure 30 of the first embodiment of the present invention is applied to provide a club head 32 and a shaft 34 for club change. It includes a positioning mechanism 36, a set of rod bushings 38, a locking inner screw 40 and an anti-rotation outer screw 42.

The positioning mechanism 36 may be fixed to the head 32 by gluing or welding. An inner end of the positioning mechanism 36 has a tapered groove 44 and a flange 46. One end of the smaller diameter of the tapered groove 44 is tied to the inside of the positioning mechanism 36 to form a flange 46. In addition, the flange 46 may have at least one positioning block 48 inside.

One end of the group bushing 38 is connected and fixed to the shaft 34, and the other end thereof has a first male thread 50. The group rod bushing 38 is inserted into the positioning mechanism 36 and abuts against the flange 46. In addition, the rod bushing 38 may have at least one positioning groove 52 corresponding to the positioning block 48, and the positioning groove 52 needs to correspond to the positioning block 48 for positioning and fixing.

The outer part of the locking inner screw 40 is a cone 54 corresponding to the cone groove 44 of the positioning mechanism 36, and one end of the smaller outer diameter includes a screw hole 56. The screw hole 56 of the locking inner screw 40 is screwed with the first male thread 50 of the group rod bushing 38 to lock the shaft 34 connected to the group rod bushing 38.

The anti-rotation outer screw 42 is made of iron, stainless steel, pure titanium, titanium alloy, aluminum or aluminum alloy, and the outer surface thereof has a second male thread 58 corresponding to a female thread 60 in the head 32. The anti-rotation outer screw 42 is screwed with the female screw 60 by the second male thread 58 and abuts against the locking inner screw 40 to prevent the locking inner screw 40 from slowly loosening after a swing stroke. .

It is worth noting that the reason why the tapered groove 44 inside the positioning mechanism 36 and the locking inner screw 40 having the tapered shape 54 disclosed in the first embodiment of the present invention is designed to be tapered is to make the locking of the inner screw 40 The screw hole 56 can have better anti-rotation force after being screwed with the first male thread 50 of the rod bushing 38. In addition, a tapered washer 62 may be included between the locking inner screw 40 having a tapered 54 and the tapered groove 44 of the positioning mechanism 36. After the locking inner screw 40 is tightened, the tapered washer 62 may provide One of the shaft 34 and the head 32 is resistant to rotation. However, in other embodiments, the interior of the positioning mechanism and the locking inner screw are not limited to be designed to be tapered.

Please refer to FIG. 4 and FIG. 5 at the same time, which are exploded views of the golf club's club change joint structure of the second embodiment of the creation and the golf club's club change joint structure of the second embodiment of the creation to combine the club Cross section of head and shaft. The golf club's club changing joint structure 70 of the second embodiment of the present invention is applied to provide a golf club head 72 and a shaft 74 for club changing. It includes a socket 76, a set of rod bushes 78, a locking inner screw 80 and an anti-rotation outer screw 82.

The socket 76 may be integrally formed with the head 72 or may be disposed on the head 72 by joining. The head 76 includes a flange 84. The flange 84 has an abutting surface 86 and a positioning hole 88 located in the abutting surface 86. In the second embodiment of the present invention, the tube base 76 may further include a tapered groove 90. The tapered groove 90 is located inside the tube base 76, and its inner diameter near the end of the flange 84 is smaller than the distance away from the end of the flange 84. path.

The rod group bushing 78 is inserted into the pipe base 76, one end of which is connected to and fixes the shaft 74, and the other end thereof has a screw hole 92. In the second embodiment of the present invention, one end of the group bushing 78 has a screw hole 92 corresponding to the tapered groove 90 inside the socket 76 to form a cone 94, and the outside of the group bushing 78 has at least one Locating slot 96. In addition, the golf club's club changing joint structure 70 of the second embodiment of the present invention may further include a positioning mechanism 98 disposed on the head 72, and the positioning mechanism 98 includes at least one positioning block 100 corresponding to the outside of the corresponding group of bushings 78Position slot 96. The positioning slot 96. When the group bushing 78 is inserted into the head 72, the positioning groove 96 of the group bushing 78 needs to correspond to the positioning block 100 for positioning and fixing.

The locking inner screw 80 has a screw head 102, which is positioned by the positioning hole 88 and is screwed with the screw hole 92 of the rod bushing 78, and the screw head 102 is against the abutment surface 86 for locking connection. The shaft 74 of the set of rod bushing 78. In addition, the golf club's club changer joint structure 70 of the second embodiment of the present invention may further include a cone-shaped gasket 104 which is placed at one end of a group of sleeve bushings 78 having a cone shape 94 and the cone shape of the socket 76. Between the grooves 90, when the locking inner screw 80 is tightened, the tapered washer 104 provides a rotation resistance between the shaft 74 and the head 72.

The outer surface of the anti-rotation outer screw 82 has a first male thread 106 corresponding to a first female thread 108 in the head 72, which is screwed with the first female thread 108 by the first male thread 106 and The screw head 102 of the locking inner screw 80 is pressed against the locking screw 80 to prevent the locking screw 80 from loosening slowly after swinging the ball again and again. The first female thread 108 is disposed in the head 72 or the tube seat 76.

It is worth noting that the outer surface of the socket 76 in the second embodiment of the present invention may have a second male thread 110. The socket 76 is inserted into the head 72 and uses one of the second male thread 110 and one of the head 72. The two female threads 112 are screwed together.

Compared with the conventional technology, the golf club's changeover joint structure of this creation uses anti-rotation outer screws against the inner screws to prevent the golf clubs from locking the inner after the golf club hits the ball again and again. Slowly loosening the screws affects the fixing effect of the head and the shaft and affects the performance of the ball. It also avoids the risk of accidental injury due to the detachment of the head from the shaft.

Although this creation has been disclosed as above with a preferred embodiment, it is not intended to limit this creation. Anyone skilled in this art can make various changes and decorations without departing from the spirit and scope of this creation. Therefore, this creation The scope of protection shall be defined by the scope of the attached patent application.

<p>10. . .Golf clubs</p><p>12. . .Club head</p><p>14. . .Shaft</p><p>16. . .Rod change joint structure</p><p>18. . .Group rod bush</p><p>20. . .Socket</p><p>twenty two. . .Lock screw</p><p>twenty four. . .Opening</p><p>30. . .Swapping joint structure of golf club</p><p>32. . .Club head</p><p>34. . .Shaft</p><p>36. . .Positioning mechanism</p><p>38. . .Group rod bush</p><p>40. . .Locking screws</p><p>42. . .Anti-rotation outer screw</p><p>44. . .Tapered groove</p><p>46. . .Flange</p><p>48. . .Positioning block</p><p>50. . .First male thread</p><p>52. . .Positioning slot</p><p>54. . .Cone</p><p>56. . .Screw hole</p><p>58. . .Second male thread</p><p>60. . .Female thread</p><p>62. . .Cone gasket</p><p>70. . .Swapping joint structure of golf club</p><p>72. . .Club head</p><p>74. . .Shaft</p><p>76. . .Socket</p><p>78. . .Group rod bush</p><p>80. . .Locking screws</p><p>82. . .Anti-rotation outer screw</p><p>84. . .Flange</p><p>86. . .Abut</p><p>88. . .Positioning hole</p><p>90. . .Tapered groove</p><p>92. . .Screw hole</p><p>94. . .Cone</p><p>96. . .Positioning slot</p><p>98. . .Positioning mechanism</p><p>100. . .Positioning block</p><p>102. . .Screw head</p><p>104. . .Cone gasket</p><p>106. . .First male thread</p><p>108. . .First female thread</p><p>110. . .Second male thread</p><p>112. . .Second female thread</p>

Figure 1 A schematic diagram of a conventional golf club's club changer joint structure; Figure 2 An exploded view of the golf club's club changer joint structure of the first embodiment of the present invention; Cross-section view of the club change joint structure to combine the head and shaft; Figure 4 Exploded view of the club change joint structure of the second embodiment of the present invention; and Figure 5 Application of the second embodiment of the golf club of the present invention Cross-section view of the joint changing structure to combine the head and shaft.