JP5198592B2 - Golf club grip selection method - Google Patents

Description

  The present invention relates to a method for selecting a golf club grip.

  Of the various characteristics of golf clubs, the “bending” or “bending” of the shaft has a great influence on the ball flight distance, the ball muscle, and the like. For this reason, many shafts labeled J, L, A, R, (RS), S, X, (XX) in order from the soft one are provided.

  In addition, in relation to the shaft “bending”, the club in which the “bending” point is on the hand side of the club, the club in which the point is on the head side of the club, and the middle Are known for mid-tone clubs.

  As described above, shafts suitable for various golfers (golfers with different head speed, swing type (hitter or swinger), grip strength, height, etc.) are provided.

  By the way, a grip is attached to the end portion on the proximal side of the shaft, and various proposals have been made with respect to this grip from the viewpoint of improving the feeling of feeling when gripping and ensuring a feeling of fitting (for example, Patent Documents). 1 to 2), but no proposal has been made so far, focusing on the fact that such a grip affects the characteristics of the shaft.

JP 2003-1117035 A JP 2007-411 A

  The present inventor has found that the hardness of the tip region within a predetermined distance from the grip tip to the grip end of the grip affects the characteristics relating to the “bending” of the shaft, thereby completing the present invention. It came.

  An object of the present invention is to provide a method for selecting a grip for a golf club capable of adjusting a characteristic relating to the bending of a shaft.

The method for selecting a grip for a golf club of the present invention (hereinafter also simply referred to as “selection method”) is a method for selecting a grip for a golf club attached to the other end of a shaft to which a head is attached at one end.
When the shaft is a tonal shaft, the grip of the tip region within a predetermined distance from the tip of the grip to the grip end is a grip having a JIS-A hardness meter of 60 to 70 degrees,
When the shaft is a hand tone type shaft, the grip has a tip region hardness within a predetermined distance from the tip end of the grip toward the grip end, which is 30 to 45 degrees with a JIS-A hardness meter. It is characterized by.

  In the selection method of the present invention, the hardness of the tip region within a predetermined distance from the grip tip to the grip end is selected according to the bending characteristics of the shaft. That is, in the case of a toned shaft with a bending point on the head side of the club, the hardness of the tip region within a predetermined distance from the tip of the grip to the grip end is set to 60 to 60 with a JIS-A hardness meter. Since the angle is 70 degrees, the grip side of the shaft is restrained by a hard grip, the bending is reduced, and the shaft hand is firm. For this reason, the characteristic of the shaft called the pre-condition can be sufficiently exhibited.

  On the other hand, in the case of a hand tone type shaft with the bending point on the hand side, the hardness of the tip region within a predetermined distance range from the tip of the grip to the grip end is 30 to 45 degrees with a JIS-A hardness meter. Therefore, the hand of the shaft becomes mild without being restrained by the grip, and it becomes easy to feel the bending of the hand.

  According to the selection method of the present invention, the characteristics relating to the bending of the shaft can be adjusted.

It is a figure which shows the golf club provided with the grip selected by the selection method of this invention. FIG. 2 is an enlarged explanatory view of a grip portion in the golf club shown in FIG. 1.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a golf club grip selection method of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows a golf club 1 having a grip selected by the selection method of the present invention. The golf club 1 has a shaft 2 having a head 3 attached to one end and a shaft 2 attached to the other end of the shaft 2. And a golf club grip 4 (hereinafter also simply referred to as “grip”) 4.

  The head 3 is a wood type golf club head, and a shaft insertion port 3a for inserting and fixing the tip portion 2a of the shaft 2 is formed at the heel side end. In this embodiment, a wood-type golf club head is used, but an iron-type golf club head can also be used.

  The shaft 2 is made of a cylindrical body made of, for example, CFRP (carbon fiber reinforced plastic), and the tip 2a thereof is inserted into the shaft insertion port 3a of the head 3 and fixed by an adhesive.

  The grip 4 is made of a cylindrical body made of a vulcanized rubber composition mainly composed of natural rubber and / or synthetic rubber. In the present embodiment, an end cap 4a is provided on the end side end of the grip 4. Are integrally formed. As the synthetic rubber, for example, ethylene propylene diene rubber (EPDM), styrene-butadiene copolymer rubber (SBR), butadiene rubber (BR), or the like can be used. In addition to the rubber component, the vulcanized rubber composition may contain various additives such as a filler, a vulcanizing agent, a vulcanization accelerator, a softening agent (oil), and an antioxidant.

  In the present invention, the hardness of the tip region R1 within a predetermined distance from the tip of the grip 4 to the grip end is made softer than usual so that the bending characteristic of the shaft 2 can be adjusted. Or harder than usual. Specifically, the hardness of the tip region R1 is set to 60 to 70 degrees or 30 to 45 degrees with a JIS-A hardness meter. Thereby, the degree to which the shaft hand is restrained can be adjusted, and the characteristics of the shaft can be adjusted accordingly. For example, in the case of a toned shaft 2 where the bending point is on the head side of the club, the hardness of the tip region R1 is 60 to 70 degrees with a JIS-A hardness meter, while the bending point is In the case of the hand tone type shaft 2 on the hand side, the hardness of the tip region R1 can be set to 30 to 45 degrees with a JIS-A hardness meter.

By increasing the hardness of the tip region R1 in the case of the shaft 2 of the pre-tone system (60 to 70 degrees with a JIS-A hardness meter), the grip side of the shaft 2 is restrained by a hard grip, and the bending is reduced. The shaft is tight. For this reason, the characteristic of the shaft 2 called the tone can be sufficiently exhibited. Further, in the case of the hand-tuned shaft 2, by reducing the hardness of the tip region R1 (30 to 45 degrees with a JIS-A hardness meter), the hand of the shaft becomes mild without being restrained by the grip. It makes it easier to feel the bend.
If the hardness of the tip region R1 is within the above range, the bending characteristics of the shaft can be adjusted suitably. However, when the hardness of the tip region R1 is increased, the hardness is 70 with a JIS-A hardness meter. In addition, when the hardness of the tip region R1 is reduced, the hardness is preferably 40 degrees with a JIS-A hardness meter.

  The size of the tip region R1 is not particularly limited in the present invention, but in the case of a general grip 4, it can be set to 40 to 120 mm, preferably 50 to 70 mm. When the golfer grips the grip 4, the distance from the finger located closest to the head to the tip of the grip is usually about 50 to 70 mm. By setting the grip in this region to a predetermined hardness, it is possible to adjust the bending characteristics of the shaft 2 as long as possible without affecting the grip of the club.

  In the present embodiment, the outer diameter of the grip 4 is made constant. By making the outer diameter of the grip 4 constant, that is, the wall thickness, the manufacturing process of the grip 4 can be simplified, and as a result, the cost can be reduced.

  In the present embodiment, the hardness of the grip 4 is divided into a plurality of regions, specifically, three regions along the longitudinal direction of the grip 4. In other words, the grip 4 is divided into three parts from the tip end side: the tip end region R1, the region R2 gripped by the golfer's hand, and the hand region (grip end portion) R3. Accordingly, it is possible to select an appropriate hardness for each region in consideration of a fit feeling, a sense of security (the absence of a grip shift during a swing), and the like. For example, the hardness can be set to 70 ° -50 ° -70 ° or 40 ° -50 ° -70 ° with a JIS-A hardness meter in order from the tip region R1 side. It is preferable that the grip end portion R3 has a hardness of 70 degrees with a JIS-A hardness meter because it is too soft and there is no problem that the force is not applied when the club is held for a long time (less than 70 degrees). The number of regions is not limited to 3, but may be 2 or 4 or more.

  The grip 4 having different hardness in the axial direction can be obtained by, for example, arranging sheet-like materials having different hardness side by side and integrally press-molding them.

  In the embodiment described above, the end cap of the grip is formed integrally with the grip. However, the end cap can be formed separately and combined with the grip. In this case, the end cap can be made of a material different from the grip.

  Further, in the embodiment described above, the outer diameter of the grip is made constant. However, the present invention is not limited to this. For example, the tip end side has a small diameter (thin wall) and the grip end side has a large diameter (thick wall). It can also be.

DESCRIPTION OF SYMBOLS 1 Golf club 2 Shaft 2a Tip part 3 Head 3a Insert 4 Grip 4a End cap R1 Tip area

Claims (2)

A method for selecting a grip for a golf club to be attached to the other end of a shaft to which a head is attached at one end,
When the shaft is a tonal shaft, the grip of the tip region within a predetermined distance from the tip of the grip to the grip end is a grip having a JIS-A hardness meter of 60 to 70 degrees,
When the shaft is a hand tone type shaft, the grip has a tip region hardness within a predetermined distance from the tip end of the grip toward the grip end, which is 30 to 45 degrees with a JIS-A hardness meter. A method for selecting a grip for a golf club characterized by the above.   The golf club grip selection method according to claim 1, wherein the predetermined distance is 50 to 70 mm.

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