JPH0898904A - Impact absorbing balancer for golf club - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a novel impact-absorbing balancer for a golf club, which can effectively absorb the impact at the time of ball shot and can be easily attached and detached. [Structure] The impact-absorbing balancer for a golf club of the present invention is formed by sequentially forming a lead plate 1, a pressure-sensitive adhesive layer 2, a shock absorber layer 3, and a pressure-sensitive adhesive layer 4. A release sheet 5 may be provided on the surface of the pressure-sensitive adhesive layer 4. The shock absorber layer is
It is preferably composed of acrylic rubber or urethane rubber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing balancer to be attached to a golf club, and more particularly to a golf club for absorbing shock at the time of shot by integrally providing a lead plate with a shock absorber. The present invention relates to a shock absorbing balancer.

[0002]

2. Description of the Related Art Golf clubs having various structures are used. For example, a golf club whose club head has a cavity structure and which has a wide sweet spot is often used. However, none of the golf clubs has the ability to absorb the impact when a golf ball is shot. In order to improve this point, a shock absorber integrally molded in the cavity of the club head is also proposed, but the current situation is that it is not suitable for each golfer in terms of balance etc. Is. On the other hand, conventionally, a balancer has been attached to the back surface or bottom of the face of the golf club head and the shaft so that the balance of the weight of the golf club suits each golfer. Conventionally, a lead plate has been used as a balancer, and one in which an adhesive is applied in advance is used on one surface of the lead plate, or a lead plate is attached with a double-sided adhesive tape.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in the prior art, and has the problems of both weight balance of a golf club and impact absorption during ball shot. The purpose was to obtain a balancer that can be solved at the same time. That is, an object of the present invention is to provide a novel impact-absorbing balancer for a golf club, which can effectively absorb the impact at the time of ball shot and can be easily attached and detached.

[0004]

As a result of intensive studies, the present inventors have found that the above object can be achieved by including a shock absorber in a balancer for a golf club, and have completed the present invention. I arrived. That is, the impact absorbing balancer for a golf club of the present invention is characterized in that a lead plate, an adhesive layer, an impact absorbing layer and an adhesive layer are sequentially formed. In the impact absorbing balancer for golf clubs of the present invention, it is preferable that a release sheet is releasably attached to the surface of the adhesive layer. Hereinafter, a shock absorbing balancer for a golf club of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing the basic structure of a shock absorbing balancer for a golf club according to the present invention.
FIG. 4 is a sectional view of an embodiment of the present invention. The impact-absorbing balancer for a golf club of the present invention is, as shown in FIG.
A shock absorber layer 3 is provided on one surface of the lead plate 1 via an adhesive layer 2, and an adhesive layer 4 is provided on the surface thereof. In the present invention, the release sheet 5 is preferably releasably attached to the surface of the pressure-sensitive adhesive layer 4. A printed layer may be provided on the other surface of the lead plate 1. FIG. 2 shows an example in which a release sheet is attached and printed, and a release sheet 5 is detachably attached to the surface of the pressure-sensitive adhesive layer 4 and a base on which printing 61 is applied is also shown. The printing sheet 6 in which the pressure-sensitive adhesive layer 63 is provided on the sheet 62 is attached to the surface of the lead plate 1.

In the present invention, the lead plate usually has a thickness of 0.1 to 10.
2 mm, preferably 0.2 to 1 mm is used.

Further, as the shock absorber, the impact resilience 1 to
Elastomers with 20%, preferably 1-14% are used, specifically natural rubber, SBR, N, for example.
Natural and synthetic rubber elastomers such as BR, polychloroprene, polyisobutylene, butyl rubber, urethane rubber, and acrylic rubber, and those obtained by foaming them. Further, polyvinyl chloride thermoplastic elastomers,
A thermoplastic elastomer such as a polyester-based thermoplastic elastomer can also be used. The thickness of the shock absorber layer formed of these materials is usually 0.2 to 3 m.
m, preferably 0.5 to 2 mm.

A pressure-sensitive adhesive is used to bond the above-described shock absorber to the lead plate. Any pressure-sensitive adhesive can be used as long as it can bond the both. For example, an acrylic pressure-sensitive adhesive having an alkyl group having 4 to 12 carbon atoms, natural rubber, SBR,
A rubber-based pressure-sensitive adhesive based on acrylic rubber, butyl rubber, thermoplastic elastomer, etc. can be used. Generally, the film thickness of the pressure-sensitive adhesive layer is preferably in the range of 20 to 100 μm.

A pressure-sensitive adhesive layer for sticking a balancer is also provided on the other side of the shock absorber layer.
As the pressure-sensitive adhesive, those similar to the above-mentioned pressure-sensitive adhesive can be used. In the present invention, these adhesive layers may be formed using the same adhesive. The thickness of the pressure-sensitive adhesive layer is generally set in the range of 20 to 100 μm. The pressure-sensitive adhesive layer provided on the other side of the shock absorber layer may be formed using a double-sided adhesive tape.

The release sheet provided on the surface of the pressure-sensitive adhesive layer is, for example, polypropylene film, polyethylene film, treated with a release resin such as silicone resin,
Examples thereof include fluororesin film, polyethylene terephthalate film, paper and the like. In the present invention, the surface of the lead plate may be printed as desired. Further, for example, a printing sheet made of a sheet of paper, plastic, or the like, which is printed on the front surface and provided with an adhesive layer on the back surface, may be attached to the surface of the lead plate.

[0011]

Since the impact absorbing balancer for a golf club of the present invention has a structure in which the impact absorbing body is integrally provided on the lead plate as described above, the impact absorbing balancer is provided on the back face, toe portion or bottom portion of the golf club, or the shaft. It is possible to adjust the balance of the weight by sticking it on and to absorb the impact at the time of ball shot by the action of the impact absorber. 3A and 3B are explanatory views showing a place where the balancer is attached, where FIG. 3A shows a wood club and FIG. 3B shows an iron club. In the figure, A is the upper part of the club shaft, B is the lower part of the club shaft, C is the back face of the face of the club head, D is the toe part of the club head, and E is the bottom part of the club head. It is used by sticking it to several places.

[0012]

EXAMPLES The present invention will be described below with reference to examples. Acrylic adhesive (adhesive made by Soken Chemical Co., Ltd., product name: "SKDyne 1720" mixed with 100 parts by weight of "curing agent L-45" (2 parts by weight)) in a release sheet having a film thickness of 5
It is applied so that it becomes 0 μm, and it is attached to one surface of a sheet-shaped vibration-damping rubber (trade name: HONENITE GP-60L, manufactured by Naigai Rubber Co., Ltd., 2% rebound resilience) with a thickness of 0.5 mm or 1 mm. A shock absorber layer was formed. Next, thickness 0.5
The same acrylic pressure-sensitive adhesive as described above was applied to one surface of a lead plate of mm to a thickness of 50 μm to form a pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer provided on one surface of the lead plate thus obtained and the other surface of the shock absorber layer are laminated and bonded together,
The lead plate and shock absorber layer are integrated. Further, a pressure-sensitive adhesive sheet having desired printing on the surface of the base was attached to the other surface of the lead plate to obtain a laminate. This laminate was cut into an appropriate size to obtain a shock absorbing balancer. By sticking this impact absorbing balancer to an appropriate position of the golf club, the balance of weights was adjusted and the impact at the time of ball shot could be effectively absorbed. In the present invention, it is also possible to stack the layers in a sequence other than that shown in the above-mentioned embodiment.

[0013]

As described above, the impact absorbing balancer for a golf club of the present invention has a structure in which the lead plate and the impact absorbing layer can be integrally attached to each other as described above. The effect of being able to be easily attached or detached at a position, and thereby being able to adjust the balance of the weight and absorb the impact when the ball is shot.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing the basic structure of an impact absorbing balancer for a golf club of the present invention.

FIG. 2 is a schematic sectional view of an embodiment of the present invention.

FIG. 3 is an explanatory view showing a position where a shock absorbing balancer for a golf club of the present invention is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lead plate 2 ... Adhesive layer 3 ... Impact absorber layer 4 ... Adhesive layer 5 ... Release sheet 6 ... Printing sheet A is the upper part of the club shaft B is the lower part of the club shaft C is the back face of the club head D is the club head Toe E is the bottom of the club head

Claims (3)

[Claims] 1. A shock-absorbing balancer for a golf club, which comprises a lead plate, a pressure-sensitive adhesive layer, a shock absorber layer, and a pressure-sensitive adhesive layer formed in this order. 2. The impact absorbing balancer for a golf club according to claim 1, wherein the impact absorbing layer is made of an elastomer having a rebound resilience of 1 to 20%. 3. The impact-absorbing balancer for a golf club according to claim 1, wherein a release sheet is provided on the surface of the pressure-sensitive adhesive layer.