JPS6327735Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grip that is attached to the shaft of a golf club.

Grips for golf clubs commonly used in the past are made of rubber, and include hard grips made only of hard rubber, soft grips made only of soft rubber, and even grips mainly made of hard rubber.
There are grips that have a soft rubber layer formed on the outer periphery, and grips that are mainly made of soft rubber and have a hard rubber layer formed on the outer periphery. It has the following drawbacks. In other words, for example, in the case of a hard grip made only of hard rubber, the rubber is hard, so it has good abrasion resistance and can be gripped firmly, and the grip is less likely to twist when the ball makes an impact, so the face surface of the club head is While it is possible to swing stably without shaking,
This has the disadvantage that the cushioning of the impact upon impact of the ball is insufficient, and most of the impact is transmitted through the grip to the wrist, causing discomfort to the player. On the other hand, soft grips made only of soft rubber have sufficient impact cushioning because the rubber is soft, but they have the disadvantage that the surface is easily worn and it is difficult to grip firmly. It also has the disadvantage that it causes the club head to twist, causing the face of the club head to blur.
Next, a grip whose main body is made of hard rubber with a soft rubber layer formed around its outer periphery has a hard rubber main body that connects to the shaft, so twisting does not occur when the ball impacts, and the grip is strong. It can be gripped, and since it has a soft rubber layer around its outer periphery, it can buffer shocks, but because the outside is made of soft rubber, it has a drawback in terms of wear resistance, and there is a risk that the soft rubber layer may peel off. On the other hand, grips whose main body is made of soft rubber and a hard rubber layer formed on the outer periphery have good abrasion resistance due to the hard outer side, and can be gripped firmly. While this provides sufficient shock absorption, the soft rubber body is the part directly connected to the shaft, which causes the grip to twist upon impact with the ball, making it difficult to swing stably.

In view of the above points, the present invention has good wear resistance and
To provide a grip for a golf club that can be firmly held, sufficiently cushions impact, and does not cause twisting.

Hereinafter, embodiments of the present invention will be described based on the drawings.

In FIG. 1, reference numeral 1 denotes a shaft of a golf club, with a head 2 attached to its leading end and a grip 3 according to the present invention attached to its rear end.
2 and 3 show a first embodiment of the grip 3 used in the present invention. Reference numeral 4 denotes a cylindrical body made of hard rubber that forms the main body of the grip 3, and the club shaft 1 is inserted and fixed into a hollow portion 5 of the hard rubber cylindrical body 4. Reference numeral 6 denotes a soft body provided inside the hard rubber cylinder body 4. This soft body 6 consists of a plurality of elongated soft rubber bodies made of rubber softer than the hard rubber cylinder 4, and each of these soft rubber bodies 6 is made of hard rubber as shown in FIGS. 2 and 3. They extend in the longitudinal direction of the hard rubber cylinder 4 parallel to the central axis of the cylinder 4, and are arranged at equal intervals along the circumferential line between the outer layer and the inner layer of the hard rubber cylinder 4. .

Next, a method of manufacturing the above-mentioned grip 3 will be explained based on FIGS. 6 to 8. First, vulcanizing agents, vulcanization accelerators, fillers, reinforcing agents, etc. are added to a mixture of natural rubber and synthetic rubber such as butadiene rubber, styrene-butadiene rubber, or isoprene, and after kneading, it is rolled out with rollers to make it hard. Two types of rubber sheets are made: a rubber sheet and a soft rubber sheet. Hard rubber sheets contain more reinforcing agents than soft rubber sheets. Of these two types of rubber sheets, the hard rubber sheet is put into the first mold 7 shown in FIG. A plurality of recesses 9 arranged at equal intervals on the outer peripheral surface as shown in Fig. 6b.
A first hard rubber body 10 having a cylindrical shape is molded. Each of the recesses 9 has an elongated trapezoidal shape and extends in the longitudinal direction of the first hard rubber cylinder 10 parallel to the central axis of the first hard rubber cylinder 10 . Next, a soft rubber sheet is embedded in each recess 9 of this first hard rubber cylinder 10, and after putting this together with the core metal 8 into the second mold 11 shown in FIG. 7a, an appropriate Figure 7b is obtained by vulcanizing with heat and pressure.
As shown in FIG. 2, each recess 9 on the outer circumferential surface of the first hard rubber cylinder 10 is filled with soft rubber to form the above-mentioned soft rubber body 6. Finally, the first hard rubber cylinder 1 with the soft rubber body 6 provided in the recess 9
Another hard rubber sheet is wrapped around the outer periphery of the metal core 8, and this is put into the second mold 12 shown in FIG. By curing, as shown in FIG. 8b, a second hard rubber body 13 having the same width as the first hard rubber cylinder body 10 is provided on the outer periphery of the soft rubber body 6, and finally a second hard rubber body 13 is provided on the outer periphery of the soft rubber body 6.
The grip 3 shown in FIGS. 3 and 3 is formed. First hard rubber cylinder 10 and second hard rubber body 13
are made of the same hard rubber and are integrated to form the hard rubber cylinder 4 which is the main body of the grip 3, and the soft body 6 is parallel to the central axis of the hard rubber cylinder 4 as described above. They extend in the longitudinal direction of the hard rubber cylinder 4 and are arranged at equal intervals on a circumferential line midway between the outer layer and the inner layer of the hard rubber cylinder 4.

Next, a second embodiment of the grip 3 of the present invention will be described based on FIGS. 4 and 5. However, the members common to the first embodiment are designated by the same reference numerals and the explanation thereof will be omitted. 14 is a soft body provided inside the hard rubber cylinder body 4. The soft body 14 is made of a plurality of ring-shaped soft rubber bodies made of the same soft rubber as the soft body 6, and these ring-shaped soft rubber bodies 14 are as shown in FIGS. 4 and 5. They are arranged at equal intervals in the longitudinal direction of the hard rubber cylinder 4, parallel to the central axis of the hard rubber cylinder 4, between the outer layer and the inner layer of the hard rubber cylinder 4. The method of manufacturing the grip 3 of this embodiment is basically the same as the method of manufacturing the grip 3 of the first embodiment, but in this embodiment, the method shown in FIG.
The first mold 15 shown in FIG. 9a is used instead of the first mold 7 shown in FIG.

As described above, in the grip 3 of the present invention, the main body of the grip 3 is formed of a hard rubber cylinder 4 made of hard rubber, and a soft rubber made of soft rubber is provided between the outer layer and the inner layer of the hard rubber cylinder 4. Since the structure includes the bodies 6 and 14, it has good abrasion resistance and can be firmly gripped, and there is no fear that the soft body 6 will peel off, and the impact at the time of impact of the ball can be sufficiently buffered. . Furthermore, as mentioned above,
Since the club shaft 1 is inserted and fixed into the hollow part 5 of the hard rubber cylinder 4, the grip 3 does not twist when hitting the ball, and a stable swing can be performed.

In the first and second embodiments described above, the soft bodies 6 and 14 provided in the hard rubber cylinder 4 of the grip 3 are both made of softer rubber than the hard rubber cylinder 4. Although the soft bodies 6 and 14 are made of rubber bodies, the soft bodies 6 and 14 are not limited to this soft rubber body. For example, the parts where the soft rubber bodies 6 and 14 of the first and second embodiments are provided are spaced It can also be configured with an air chamber, which can provide the same shock absorption as a soft rubber body. Furthermore, a viscous fluid such as glycerin can be injected into this air chamber to further enhance the buffering effect.

The present invention is constructed as described above, and a soft body that is softer than the hard rubber cylinder is provided between the outer layer and the inner layer of the hard rubber cylinder, which is made of hard rubber. Both the part and the part that connects to the shaft are made of hard rubber, which provides a grip that has excellent abrasion resistance, can be held firmly, and does not twist, and is made of hard rubber. Since the soft body is inserted therein, there is no fear that the soft body will peel off, and it is possible to provide a grip for a golf club that has a sufficient shock-absorbing effect.

[Brief explanation of the drawing]

Fig. 1 is an external view of a golf club to which the grip of the present invention is attached, Fig. 2 is a sectional view taken along the line A-A' in Fig. BB' sectional view of the first embodiment shown in the figure,
4 is a sectional view taken along the line A-A' in FIG. 1 showing a second embodiment of the grip of the present invention, FIG. 5 is a sectional view taken along the line C-C' of the second embodiment shown in FIG. 4, and FIG. a, Figure 7a.
Figure 8a is an external view of the first, second, and third molds used to manufacture the grip of the first embodiment, and Figures 6b, 7b, and 8b are of the first embodiment. FIG. 9a is an external view of the first mold used to manufacture the grip of the second embodiment. FIG. 9b is a cross-section of the grip of the second embodiment when it is molded. The figure is shown below. 4... Hard rubber cylinder body, 6, 14... Soft body.

Claims (1)

[Scope of utility model registration request] A golf club grip comprising a plurality of thin soft bodies, which are softer than the hard rubber cylinder, between an outer layer part and an inner layer part of a hard rubber cylinder formed of hard rubber.