JPS6031745Y2 - golf club shaft - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a shaft for a golf club, and particularly to a shaft structure that provides excellent feel when hitting a ball.

In the general structure of a golf club, the shape of the shaft between the grip and the head is a tapered tube shape that gradually decreases in diameter as it goes from the grip to the head. The impact vibrations are transmitted to the gripping hand and the user feels the ball being hit.

By the way, when the ball hits the face of the head, that is, the center of the ball hitting surface, the ball feels comfortable even when the impact force is strong. This is due to the vibration of

However, if the ball misses the center of the face and hits the toe or tip of the head, or the heel or bottom rest of the head, even if the ball flies in the correct direction, your hands will not be able to handle it. This results in an unpleasant numbing feeling, which is caused by the fact that the vibration component of the shaft becomes a composite vibration in the axial direction of the face and the axial direction of the shaft.

In addition, in order to eliminate such discomfort, if the head end of the shaft is made thinner than current general clubs, the impact vibration transmitted to the grip will be absorbed to some extent in the middle of the shaft, but However, if the tip of the shaft is made extremely thin in a step-like manner, the shaft will become too loose and the flight of the ball will be poor, and the appearance of the club will become unsightly.In other words, this is not considered an appropriate countermeasure from a practical point of view. do not have.

The present invention was developed with a focus on the correlation between the feel of a ball at impact and the vibration characteristics of the shaft.In other words, the purpose of the invention is to always provide a comfortable feel at impact, regardless of the hitting conditions. The object of the present invention is to provide a golf club shaft that can be obtained.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

In the shaft of the embodiment, as shown in FIGS. 1 and 2, a buffer portion 3 with an appropriate axial length is formed in the intermediate portion of the hollow metal shaft 1 with a tapered diameter near the head 2.
The portion of the shaft 1 that corresponds to the buffer portion 3 is formed into a recessed stepped portion 1a that is one step smaller in diameter than the continuous upper and lower portions, and the peripheral surface of the stepped portion 1a is covered with rubber strings, thick threads, etc. The visible wrapping body 4 is tightly wound and fastened.

Note that the manner in which the grip 5 and head 2 formed at both ends of the shaft 1 are formed is not particularly different from that of a conventional shaft.

When the shaft of the embodiment formed in this manner is used in a golf club, since the recessed stepped portion 1a on the outer periphery of the shaft 1, which forms the core of the buffer portion 3, has a small diameter, the head 2 The shock vibration force generated in each direction is absorbed by the buffer section 3 to a large extent and then transmitted to the grip 5. Therefore, regardless of the ball hitting conditions, the vibration force transmitted to the grip 5 is attenuated and undesired. To soften the pleasure, for example, regarding vibrations in the direction of the head axis, as shown in Figure 2a, the vibrations almost disappear near grip 5, and as in the conventional case (Figure 2b), vibrations up to grip 5 are suppressed. There is nothing that conveys this.

Moreover, since the waist of the narrow diameter recessed stepped portion 1a is reinforced by the wrapping material 4, the shaft 1 does not become enlarged, and therefore, the formation of the buffer portion 3 does not reduce the ball hitting performance of the club. Never.

As described above, according to the shaft of the golf club according to the present invention, the buffer portion formed by the narrow diameter portion of the shaft and the wrapping material for giving stiffness to the narrow diameter portion is attached to the shaft. Since it is placed closer to the head, the grip vibrates slightly when hitting the ball, and as a result, even if the head hits the ball poorly, it does not cause discomfort to the batter, thereby improving the usability of the golf club. effective.

[Brief explanation of drawings]

Fig. 1 is a needle perspective view of the shaft of a golf club showing an embodiment of the present invention, Fig. 2 is a vertical sectional view taken along the line ■-■ in Fig. 1, and Figs. 3a and 3 are: These are model diagrams showing the amplitude of the shaft when hitting a ball, with Figure a showing the characteristics of the embodiment and Figure a showing the conventional characteristics. 1...Glossy, 1a...Recessed step, 2
...Head, 4...Wrapping material.

Claims (1)

[Scope of utility model registration request] A ball hitting buffer part 3 is formed in the middle part of the hollow metal shaft 1, and the buffer part 3 consists of a recessed stepped part 1a whose diameter is one step smaller than the continuous upper and lower parts of the outer periphery of the shaft 1, and the recessed part 1a. A golf club shaft characterized in that it is formed of a visible winding body 4 wire-wound on the outer peripheral surface of a stepped portion 1a.