JPH06205861A - Grip and its manufacture - Google Patents

Abstract

PURPOSE:To provide a grip of which the holding feeling is favorable without a feeling of a foreign substance when the grip is held, and at the same time, for which a sufficient slip prevention to rain or perspiration is provided, and its manufacturing, concerning the grip of a golf club, etc., and its manufacturing method. CONSTITUTION:For a grip 29, numerous fine protuberance-form rupture parts 33 are provided on the surface of a grip with a flexibility, at least the surface of which is made of a rubber or synthetic resin. As the manufacturing method of the grip 29, on the outer peripheral surface of a cylindrical body with a flexibility, at least the surface of which is formed of a rubber or synthetic resin, a sheet which has numerous fine pores is attached, and the cylindrical body and sheet are heat-pressed, and then, the sheet is peeled from the cylindrical body to form numerous fine protuberance-form rupture parts on the surface of the cylindrical body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grip used for golf clubs, tennis rackets, fishing rods and the like, and a method for manufacturing the grip.

[0002]

2. Description of the Related Art Conventionally, for example, in many golf clubs, a grip, which is integrally molded of rubber or synthetic resin and has an anti-slip that also serves as a decoration to increase the friction resistance with the hand, is attached to the shaft. There is.

And, in recent years, Japanese Patent Laid-Open No. 4-12616.
As shown in Japanese Patent Publication No. 9 or FIG. 7, a cylindrical body 5 having a flat outer peripheral surface is obtained by injection-molding a thermoplastic resin in dies 1 and 3.
Then, the outer peripheral surface of the tubular body 5 is provided with a projection 7 representing a desired pattern, and pressing jigs 9 and 11 which are heated to a predetermined temperature in advance are pressed to grip the groove 13 having the desired pattern 15
There is disclosed a method for manufacturing a resin grip formed in the above.

In the old days, as shown in FIGS. 8 to 10,
In order to prevent slipping of hands due to sweat or rain, a woven cloth in the shape of a blind 17
Is wrapped around the outer peripheral surface of the raw rubber 21 adhered to the outer peripheral surface of the cored bar 19, and then these are housed in the molds 23 and 25 for vulcanization molding, whereby the woven fabric 17 is attached to the outer peripheral surface of the grip 27. A method for manufacturing a rubber grip to be integrally attached is known from Japanese Patent Application Laid-Open No. 49-112726.

[0005]

However, in the manufacturing method shown in FIG. 7, it is not possible to provide the grip with fine grooves or patterns for preventing slippage, and therefore the grip manufactured by such a manufacturing method still has a problem of rain or rain. It was not possible to obtain a sufficient anti-slip effect against sweat.

On the other hand, as shown in FIG. 10, if a material different from that of the grip body is used for the outer surface of the grip to prevent slipping, a feeling of foreign matter is felt when gripping the grip, and the grip is not always good. It was

The present invention has been devised in view of the above circumstances, and when the grip is gripped, there is no feeling of foreign matter and the grip is comfortable, and at the same time, sufficient anti-slip prevention against rain and sweat is achieved. An object is to provide a grip and a manufacturing method thereof.

[0008]

In order to achieve such an object, a grip according to the present invention is provided with a large number of fine convex shapes on at least the surface of a flexible grip made of rubber or synthetic resin. The broken part is provided.

In the grip manufacturing method according to the present invention, a sheet having a large number of fine holes is attached to the outer peripheral surface of a flexible cylindrical body whose surface is molded of rubber or synthetic resin. After heating and pressurizing, the sheet is peeled from the tubular body to form a large number of fine convex broken portions on the surface of the tubular body.

[0010]

According to the grip of the first aspect, when the grip is inserted into, for example, a golf club, each broken portion increases frictional resistance with the hand to prevent slipping of the hand due to sweat or rain. The fractured portion gives the golfer a good grip feeling that is soft and familiar to the hand.

Further, according to the manufacturing method of the second aspect, a sheet having a large number of fine holes is attached to the outer peripheral surface of the cylindrical body, these are heated and pressed, and then the sheet is peeled from the cylindrical body. In this case, the grip according to claim 1 in which a large number of fine convex broken portions are formed on the surface of the tubular body can be easily manufactured.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view of a grip according to an embodiment of the present invention, and this embodiment applies the present invention to a grip for a golf club.

In FIG. 1, reference numeral 29 designates a grip formed of an elastic material such as rubber or synthetic resin which can be easily melted, and a plurality of grooves 31 are formed on the surface of the grip as a slip stopper which also serves as a decoration as in the conventional case. However, in this embodiment, these grooves 3 are formed.
In addition to the above, as shown in FIG. 2, a large number of fine convex breaks 33 are integrally provided on the surface of the grip 29, and when the golfer grips the grip 29, each break 33 has a groove 31. At the same time, the frictional resistance with the hand is increased to prevent the hand from slipping due to sweat or rain, and the breaks 33 provide the golfer with a soft and comfortable grip that is comfortable to the hand.

The grip 29 according to this embodiment is constructed in this way, and the grip 29 is manufactured by one embodiment of the method of the present invention described below. First, as shown in FIG. 3, an elastic material such as rubber or synthetic resin that is easily melted is used to form a tubular body 35 as a base of the grip 29, and the outer peripheral surface of the tubular body 35 is covered with a large number of fine particles. Hole 3
Two sheets 39 and 41 having 7 are covered from above and below. These sheets 39 and 41 are woven fabrics using synthetic fibers and natural fibers, and have the flexibility to cover them from above and below along the curved surface of the outer circumference of the tubular body 35. Form 3
Fibers 39a and 41a having a melting temperature higher than that of No. 5 are used, and a large number of breaks 33 are provided between the fibers 39a and 41a.
Is a fine hole 37 for forming the.

Then, after the outer peripheral surface of the tubular body 35 is covered with the two sheets 39 and 41, the molding core material 43 is placed at the center of the tubular body 35 as shown in FIG. After being inserted, these are heated and pressurized in the molds 45 and 47. As shown in the drawing, a plurality of protrusions 49 for forming the groove 31 are formed at predetermined positions in the molds 45 and 47.

When the cylindrical body 35 is heated and pressed in the molds 45 and 47 in this way, the surface of the cylindrical body 35 is melted by the heat and pressure during molding as shown in FIG. To penetrate into the above-mentioned fine holes 37, and further, through each fine hole 37, the sheet 3
Thin permeation layer 35 of rubber or synthetic resin covering the outer circumference of 9, 41
a is formed. Therefore, the permeation layer 35a that covers the outer peripheries of the sheets 39 and 41 and the tubular body 35 are connected by the rubber or synthetic resin that has penetrated into the fine holes 37, and the sheets 39 and 41 are attached to the outer perimeter of the tubular body 35. It becomes a state.

After the heat and pressure treatment, the sheets 39 and 41 are peeled from the tubular body 35 as shown in FIG. 6, and the molding core material 43 is removed.
The rubber or synthetic resin that has penetrated into the fine holes 37 of the
After being stretched to the limit with the peeling of 9, 41, the fine holes 3
Since it is broken into an arbitrary shape at an arbitrary position within 7, the cylindrical body 3
The grip 29 as shown in FIG. 2 is manufactured in which a large number of grooves 31 and fine convex irregular breaks 33 are formed on the surface of the grip 5.

The grip 29 according to this embodiment and the method for manufacturing the grip 29 are configured as described above, and thus the grip 2
When playing with a golf club in which 9 is inserted, each fractured portion 33 increases frictional resistance with the groove 31 together with the hand to prevent slipping of the hand due to sweat or rain, and these fractured portions 33
It gives the golfer a soft and comfortable grip that is comfortable to the hand.

Therefore, according to the grip 29 according to the present embodiment, unlike the grip 21 of FIG. 10, there is no different material on the outer surface, so that when the grip 29 is gripped, there is no feeling of foreign matter and the grip is good. However, the groove 31 and the fractured portion 33 can reliably prevent the slipping of the hand due to sweat or rain.

Further, conventionally, in the grip manufacturing method of this type, it was not possible to form the grooves or patterns for the fine non-slip on the surface of the grip by the mold or the pressing jig, but the present embodiment is concerned. According to the manufacturing method, as described above, the grip 29 provided with a large number of fine convex breaks 33 on the surface thereof.
Can be easily manufactured using the existing equipment in the conventional manufacturing method.

In the above embodiment, the two sheets 39,
Although the upper and lower sides of the tubular body 35 are covered with 41, a single sheet may be wound around the outer periphery of the tubular body 35 and attached, or a non-woven fabric or a large number of fine holes may be provided instead of the woven fabric. Alternatively, a flexible synthetic resin sheet may be used.

Thus, also with these, it is possible to easily manufacture a grip having the same operation and effect as the above-mentioned embodiment. Further, the present invention is not limited to the above-mentioned grip for a golf club, but can be used as a grip for a racket for tennis or badminton, or as a grip for a ski pole or a fishing rod.

[0023]

As described above, according to the grip according to the first aspect of the present invention, when the grip is held, there is no feeling of foreign matter and the grip is good, and the slipping of the hand due to sweat or rain is surely prevented. It has the advantage that it can.

Further, according to the grip manufacturing method of the second aspect, a grip provided with a large number of fine convex broken portions on the surface can be easily manufactured by using the existing equipment in the conventional manufacturing method. It is possible to manufacture.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a grip according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

3 is a perspective view showing a method of manufacturing the grip shown in FIG. 1. FIG.

FIG. 4 is a cross-sectional view showing a state where a tubular body is heated and pressed by a mold.

FIG. 5 is a partial cross-sectional view of the tubular body after completion of the heating and pressurizing process by the mold.

FIG. 6 is a partial cross-sectional view of the tubular body showing a state where the sheet is peeled off.

FIG. 7 is a manufacturing process diagram of a conventional resin grip.

FIG. 8 is an overall perspective view of a grip in a conventional method for manufacturing a rubber grip in which a woven cloth in the shape of a blind is wound around an outer peripheral surface of a raw rubber sheet.

FIG. 9 is a cross-sectional view of a vulcanizing mold.

FIG. 10 is a sectional view of a conventional rubber grip.

[Explanation of symbols]

 29 Grip 31 Groove 33 Broken Part 35 Cylindrical Body 35a Penetration Layer 37 Micropores 39, 41 Sheet 43 Molding Core Material 45, 47 Mold 49 Protrusion

Claims (2)

[Claims] 1. A grip comprising a flexible grip having at least a surface made of rubber or synthetic resin and provided with a large number of fine convex broken portions on the surface. 2. A sheet having a large number of fine holes is attached to the outer peripheral surface of a flexible tubular body having at least the surface formed of rubber or synthetic resin, and these are heated and pressed, and then the sheet is tubularly placed. A method for manufacturing a grip, characterized in that a large number of fine convex broken portions are formed on the surface of a tubular body by peeling from the tubular body.