JPH09135935A - Balance adjuster for golf club - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to let a golf ball fly to an appropriate direction with a sufficient distance upon a well-balanced swing, by attaching a weight body movably and adjustably to the grip part of a golf club. SOLUTION: A weight attaching body 22 for a golf club ballance adjuster 21 is inserting into a hole 20 formed on the grip part 16 of a golf club. An inserting hole 24 is bored on the weight body attaching body 22. A guide rail 26 is projected to the inner periphery of the weight body moving hole 24. A long size male screw body 32 is rotatably set on the weight body attaching body 22. A cylindrical weight body 38 is set on the weight body moving hole 24. A guide rail guide groove is notched on the outer periphery face of the weight body 38 so as the guide rail 26 to be inserted. A female screw hole into which the male scew body 32 is screwed is formed on the weight body 38.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club balance adjuster attached to a golf club used in golf.

[0002]

2. Description of the Related Art It is well known that golf clubs used in golf can fly a golf ball farther by centrifugal force as the shaft becomes longer. However, when the shaft is lengthened, the weight of the club head provided at the tip of the shaft is added to increase the weight, and the balance of the swing tends to be lost when the golf club swings, and conversely, the flight distance of the golf ball is short. Therefore, if the club head is lightened, it is possible to stabilize the swing balance even if the shaft is lengthened, but if the club head is lightened, the repulsive force of the club head decreases, and despite the fact that the shaft was lengthened, There is a problem that the flight distance is not good due to poor directionality.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve the above-mentioned problems, and is mounted in a grip portion of a shaft of a golf club to move and adjust a weight so as to balance during a swing. An object of the present invention is to provide a golf club balance adjuster capable of increasing the direction and flight distance of a golf ball without breaking.

[0004]

According to the first aspect of the present invention,
A weight attachment body inserted into a hole provided along the longitudinal direction of the shaft in the grip portion of the golf club, a weight movement hole provided in the longitudinal direction of the weight attachment body, and the weight body. A guide rail projecting along the longitudinal direction of the shaft on the inner peripheral surface of the moving hole, a male screw body rotatably supported by the weight moving hole, and movably arranged in the weight moving hole. And a guide rail guide groove formed on the outer peripheral surface of the weight body and into which the guide rail is inserted, the weight body having a female screw hole that is threadedly engaged with the male screw body. Is characterized by. According to a second aspect of the present invention, a weight body mounting body inserted into a hole formed in the grip portion of the golf club along the longitudinal direction of the shaft, and a weight body bored in the longitudinal direction of the weight body mounting body. A body moving hole, a guide rail provided on the inner peripheral surface of the weight moving hole so as to project along the longitudinal direction of the shaft, and a weight body disposed in the weight moving hole and moving in the weight moving hole. A guide rail guide groove formed on the outer peripheral surface of the weight body and into which the guide rail is inserted; a female screw hole formed on one end surface of the weight body; and a male part having a tip portion screwed into the female screw hole. A screw, a taper portion formed at a base end portion of the male screw, and an inner peripheral surface of the weight moving hole which is externally mounted on the male screw and is pushed by the male screw when the male screw is screwed in. And a stopper that abuts against.

[0005]

1 to 4 show a first embodiment of a golf club balance adjusting tool according to the present invention. As shown in FIG. 5, the shaft 12 of the golf club 10
A club head 14 is provided at one longitudinal end of the. The other end of the shaft 12 has a grip portion 16
It has been. As shown in FIG. 1, a hole 20 is formed in the end surface of the grip portion 16 toward the club head 14. A weight attachment body 22 of a golf club balance adjuster 21 is fitted into this hole 20. In this embodiment, the weight attachment body 22 is made of plastic.
A weight movement insertion hole 24 is formed in the weight attachment body 22 toward the club head 12. The guide rail 2 is provided along the longitudinal direction on the inner peripheral surface of the weight moving hole 24.
6 are protrudingly provided. The bottom portion 22A of the weight attachment body 22
A through hole 30 is formed in the. The weight attachment body 22
A long male screw body 32 is disposed in the. The distal end portion of the male screw body 32 passes through the through hole 30, and the large diameter portion 32A formed at the distal end is located in the hole 20, and the proximal end portion 32B.
Is loosely fitted in a cylindrical male screw body holder 34 fitted in the weight body moving hole 24. Therefore, the male screw body 32 is rotatable. As shown in FIG. 4, a driver groove 36 is formed on the end surface of the base end portion 32B of the male screw body 32. As shown in FIG. 1, the weight moving hole 24
A column-shaped weight body 38 is arranged in the. As shown in FIGS. 2 and 3, a guide rail guide groove 40 is formed along the longitudinal direction on the outer peripheral surface of the weight body 38. FIG.
As shown in FIG. 5, the guide rail 26 is inserted into the guide rail guide groove 40. As shown in FIG. 2, a female screw hole 42 is formed through the weight 38 in the longitudinal direction, and the male screw body 32 is screwed into the female screw hole 42.

Next, the operation of the first embodiment will be described. When swinging the golf club 10, it is up to the player to balance. Therefore, the center of gravity of the golf club 10 can be easily moved by moving the weight 38 of the golf club balance adjuster 21 provided in the grip portion 16 in the longitudinal direction of the shaft 12 with a driver or the like. When the weight body 38 is moved, the driver is put in the driver groove 36 formed in the end face of the base end portion 32B of the male screw body 32, and the male screw body 32 is rotated. Then, the male screw body 32 is rotatably attached to the weight body moving hole 2
4, the male screw body 32 rotates idly and rotates. Since the guide rail 26 is inserted into the guide rail guide groove 40 of the weight body 38 screwed with the male screw body 32, the weight body 38 does not rotate and the weight body moving hole 24 is guided in the guide rail 26. It will be guided by and move along the longitudinal direction. When it is desired to move the weight body 38 in the reverse direction, the male screw body 32 may be rotated in the reverse direction. As a result, the weight body 38 moves in the longitudinal direction of the grip portion 16 inside the grip portion 16, and the weight body 38 moves between the grip portion 16 and the club head 14, so that the club head 14 becomes heavier. In order to feel or to feel lightly, by adjusting the position of the weight body 38 even if the golf club 10 having a long shaft is used, even if the golf club 10 having a long shaft is used, the golf club 10 having a short shaft is used. It is possible to swing the golf club 10 as if using a golf club. As a result,
Since it is possible to swing the golf club 10 having the long shaft 12 in a well-balanced manner, it is possible to fly the golf ball far.

A second embodiment of the golf club balance adjusting tool according to the present invention is shown in FIGS. In addition,
The same configurations as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 6, a columnar weight 52 is provided in the weight moving hole 24 of the weight mounting body 22 of the golf club balance adjuster 21. As shown in FIG. 7, a guide rail guide groove 40 is formed along the longitudinal direction on the outer peripheral surface of the weight body 52, and the base end surface of the weight body 52 has a female screw hole having a bottom toward the longitudinal direction. 54 is formed. The distal end portion 56A of the male screw 56 is screwed into the female screw hole 54. A taper portion 58 is formed at the base end of the male screw 56, and the taper portion 58 has a taper surface 58A.
Are formed. Further, a driver groove 60 is formed in the tapered portion 58. As shown in FIG.
A cylindrical stopper 62 is provided at an intermediate portion of the male screw 56.
Is to be exteriorized. As shown in FIGS. 8 and 9, the stopper body 62 is formed with four notch grooves 64 in the longitudinal direction. Further, as shown in FIG. 9, an arc portion 66 is formed on the base end surface of the stopper 62.
The rest of the configuration is the same as in the first embodiment, so a description thereof will be omitted.

Next, the operation of the second embodiment will be described. When swinging the golf club 10, the weight body 52 of the golf club balance adjuster 21 provided in the grip portion 16 is moved in the longitudinal direction of the shaft 12 by a driver or the like as in the first embodiment. The center of gravity of 10 can be moved. When the weight body 52 is moved, the driver D (shown by an imaginary line in FIG. 6) is put in the driver groove 60 formed in the male screw 56 and the male screw 56 is rotated. Then, since the male screw 56 rotates, the front end portion 56A is screwed into the female screw hole 54, so that the front end surface of the stopper 62 abuts against the weight body 52 and further movement is prevented, so that the male screw 56 of the male screw 56 is prevented. It is pushed by the tapered surface 58A. As a result, as shown in FIG.
The weight 52 is fixed by pushing and opening the base end portion of the above to the tapered surface 58A of the male screw 56 and contacting the inner peripheral surface of the weight moving hole 24. Thereby, the weight body 52 can be moved and fixed. Since the arcuate portion 66 is formed on the base end surface of the stopper 62, the tapered portion 58 of the male screw 56 can smoothly open the base end portion of the stopper 62.

10 and 11 show another embodiment of the stopper. The stopper 70 is formed of a ring-shaped first stopper piece 70A and a second stopper piece 70B. Therefore, as shown in FIG. 10, when the male screw 56 is rotated, the first stopper piece 70A and the second stopper piece 70B are pushed by the taper surface 58A of the male screw 56 and are inclined, and the inner circumference of the weight moving hole 24 is inclined. By contacting the surface, the weight body 52 is fixed. The stopper 70
Is not limited to the two stopper pieces 70A and 70B, and it goes without saying that the stopper pieces may be formed of three or more stopper pieces.

[0010]

As described above, by attaching the golf club balance adjuster according to the present invention, even if the golf club shaft is lengthened, the balance can be obtained by adjusting the movement of the weight, so that the balance is maintained. In this manner, the golf club can swing, and as a result, the golf ball has an excellent effect that the direction and the flight distance of the golf ball can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a golf club balance adjuster according to a first embodiment.

FIG. 2 is a sectional view of a weight body of the golf club balance adjuster of the first embodiment.

FIG. 3 is a front view of the weight body of the golf club balance adjuster of the first embodiment.

FIG. 4 is a front view of a male screw body of the golf club balance adjuster of the first embodiment.

FIG. 5 is an overall view of a golf club.

FIG. 6 is a partial cross-sectional view of a golf club balance adjuster of a second embodiment.

FIG. 7 is a sectional view of a weight body of the golf club balance adjuster of the second embodiment.

FIG. 8 is a front view of a stopper body of the golf club balance adjuster of the second embodiment.

FIG. 9 is a sectional view of a stopper body of a golf club balance adjuster of a second embodiment.

FIG. 10 is a diagram illustrating the operation of another stopper.

FIG. 11 is a front view of another stopper.

[Explanation of symbols]

 10 ... Golf club 12 ... Shaft 14 ... Club head 16 ... Grip part 21 ... Golf club balance adjusting tool 22 ... Weight body mounting body 24 ... Weight body moving hole 26. ..Guide rail 32 ... male screw body 38 ... weight body 40 ... guide rail guide groove 52 ... weight body 56 ... male screw 58 ... tapered portion 62 ... stopper

Claims (2)

[Claims] 1. A weight mounting body to be inserted into a hole formed in a grip portion of a golf club along a longitudinal direction of a shaft, and a weight moving hole formed in the longitudinal direction of the weight mounting body. A guide rail projecting along the longitudinal direction of the shaft on the inner peripheral surface of the weight moving hole, a male screw body rotatably supported in the weight moving hole, and a weight moving hole. A weight body that is movably arranged and has a female screw hole that is threadedly engaged with the male screw body is formed therethrough, and a guide rail guide groove that is formed on the outer peripheral surface of the weight body and into which the guide rail is inserted. A golf club balance adjuster characterized by having. 2. A weight attachment body inserted into a hole formed along a longitudinal direction of a shaft in a grip portion of a golf club, and a weight movement hole formed in the longitudinal direction of the weight attachment body. A guide rail protruding from the inner peripheral surface of the weight moving hole along the longitudinal direction of the shaft; a weight body disposed in the weight moving hole and moving in the weight moving hole; A guide rail guide groove formed on the outer peripheral surface of the body and into which the guide rail is inserted, a female screw hole formed in one end face of the weight body, and a male screw having a tip portion screwed into the female screw hole, When a taper portion formed at the base end portion of the male screw and the male screw is externally mounted and the male screw is screwed into the male screw, the male screw is pressed by the male screw and comes into contact with the inner peripheral surface of the weight moving hole. A golf club balance adjusting tool comprising: a stopper.