JPH0716537B2 - Grip for golf club and manufacturing method thereof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a grip of a golf club having fibers exposed on the surface thereof and a method for manufacturing the same.

[Conventional technology]

Conventionally, as this type of grip, for example, the following three types are known.

A hollow tubular rubber layer mainly composed of a rubber grip is embedded along its outer surface with a coarsely textured cloth, and a part of the outer surface of the main grip body is cut off in the lengthwise direction to form a part of the cloth. Fiber exposed (Japanese Utility Model Publication No. 51-46115).

Sandwich-like plate is formed by sandwiching the anti-slip cord woven in the shape of a warp with fine warp and weft with coarse grain weaving with a grip mold. In the grip in which the rubber on the surface of the grip is scraped off to expose the anti-slip cord on the surface, the anti-slip cord is applied only to the surface of an appropriate part of the grip −
49174 publication).

In a rubber grip with a structure in which the ends on the large diameter side of the rubber cylinder with different diameters at both edges are closed by a grip head, the rubber grip from the grip head side to the other small diameter end side is almost in the longitudinal direction. A tire cord layer that runs vertically to an intermediate position is buried (Japanese Utility Model Publication No. 53-44525).

[Problems to be solved by the invention]

However, any of them can be implemented with a simple design pattern, but when the design pattern is complicated and cut out by the invention, the dent becomes complicated according to the complicated design, and the grip feeling becomes poor. Therefore, there are large restrictions on the design. In the embodiment of the invention of and, a pattern in which the cord is exposed on the surface half of the grip is adopted, and in order to perform a simple but complicated design pattern in this way, the fiber cloth is cut according to the pattern. , The cut fiber has to be aligned with the predetermined position of the rubber plate, which is complicated in work and
There is a problem that the position of the code area is likely to vary and the quality cannot be kept constant.

That is, in the conventional method as described above, it is difficult to form the area where the cord (fiber) is exposed into a complicated pattern according to the grip function and the way of gripping the hand.

[Object of the Invention]

The grip according to the present invention has a fiber layer embedded in a grip material such as rubber or a soft synthetic resin, and is polished from the surface side to form a large number of irregularities on the surface which are individually separated by the grip material. In a grip of a golf club in which a region having and a region for exposing the fibers of the fiber layer are formed, the cross-sectional shape is a perfect circle, the fiber layer is provided over the entire circumference, and the fiber layer The fibers are embedded deeper than the regions of the fiber layer where the fibers are exposed in the region having the large number of irregularities, and are provided inside the irregularities.

Further, the method for manufacturing a golf club blip of the present invention, a grip material having a fiber layer of substantially the same size as the plate on a plate made of rubber or soft synthetic resin is housed in a grip molding die, This grip molding die is heated and compressed, and a portion corresponding to the grip surface is provided with a portion to be polished including a region where a large number of irregularities are continuous and a portion to be polished including a region for exposing the fibers of the fiber layer. Along with the concave portion of the abraded portion including a region where the large number of concavities and convexities are continuous, is deeper than the fiber layer of the portion to be abraded including a region where the fibers of the fiber layer are exposed, the concave portion including a region where the large number of concavo-convex portions is continuous. The fibrous layer of the polishing portion is formed by molding a club material embedded inside the concave portion of the portion to be polished including a region where the large number of concavities and convexities are continuous, and then exposing the fibers of the fibrous layer on the entire surface of this grip element. Surface study including areas Fibers of the fibrous layer parts is intended to polishing to expose.

[Operation of the invention]

In the present invention, since there are a large number of concaves or convexes that are formed independently of each other, in the case of concaves, the fiber layer is buried further inside than the bottom of the concaves before polishing. In this case, before polishing, the fiber layer is buried further inside the bottoms of the grooves running vertically and horizontally between the protrusions.

That is, there is almost no such phenomenon in the region where the fibers of the fiber layer are exposed, and the fiber layer is embedded in a shallower position near the grip surface.

Therefore, when this grip element is polished from the surface to a uniform depth, the fibers are exposed in the regions of the fiber layer where the fibers are exposed, and the fibers are not exposed in the regions having many irregularities.

Example of Invention

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a grip of a golf club according to the present embodiment, in which 1 is a right-handed grip.

This grip 1 is made of, for example, rubber, soft synthetic resin, or the like, and is connected to this region 3 with a region 3 in which small projections 4 are forested so as to form a substantially crank shape from the grip end 2 side toward the tip direction. A trapezoidal region 5 in which the small projections 4 are forested is provided. Each small protrusion 4 is 1
Each one is separate and independent and is formed integrally with the grip 1. Further, unlike the region 6 having a large number of flat portions, which will be described later, the fibers 8 are barely exposed in each of the small protrusions 4.

The region excluding these regions 3 and 5 is constituted by a region 6 having a large number of flat portions in which grooved grooves 7 having a predetermined length are provided in the axial direction at predetermined intervals. Then, the region 6 with many flat portions
As shown in FIG. 3, the fiber 8 is exposed at.

According to the grip 1 according to the present embodiment configured as described above, in the regions 3 and 5 where the small protrusions 4 are provided, the portions that come into contact when the grip 1 is gripped contact the small protrusions 4 separately. As a result, the small projection 4 blocks the movement of the contacting portion in 360 ° in all directions and prevents it from slipping. Then, in the remaining portion, the fibers 8 exposed on the surface
Apply moderate friction to your hands, fingers, and palms to prevent accidental slippage.

That is, in this embodiment, since the regions 3 and 5 having a large anti-slip effect and the region 6 having many flat portions having a weak anti-slip effect are integrally formed by exposing the fibers 8, the palms and fingers of the player are formed. It is possible to form beans, and regions 3 and 5 are formed at a portion that needs to be firmly gripped, and at other portions, a softer grip feeling can be obtained than at regions 3 and 5. Further, the area where the fiber 8 is exposed and the area where the fiber 8 is not exposed are divided by the areas 3, 5 and 8 to provide a grip with a rich design, and different gripping methods such as a natural grip and a square grip. It is also possible to design for strong grip, base grip, weak grip, etc.

Next, the grip 1 according to the present embodiment configured as described above
An example of the manufacturing method will be described step by step.

First, as shown in FIG. 4, two plates 10 and 10 made of rubber or soft synthetic resin are prepared, and between these plates 10 and 10, a fiber layer of substantially the same size (nylon or cotton in this example) is prepared. Material for grip with 11 sandwiched between
To create.

Then, as shown in FIG. 5, a core mold 13 in the shape of the grip 1 is covered with two gripping materials 12 on the upper and lower sides, and a mold 14 having a design pattern as shown in FIG. Heat and compress at 15.

By this heat compression, the two gripping materials 12, 12 are pressure-bonded to the core mold 13, and the rubber or soft synthetic resin of the gripping material 12 is applied to the molds 14, 15 and the core metal 13. As shown in FIG. 6, it flows in a space formed by and, and as shown in FIG. 6, a polished portion 20 including a region 3 or 5 in which small projections 4 are formed on the outer surface (a region where a large number of irregularities are continuous) 3 or 5. The gripping material 16 is completed, which is formed with the abraded portion 21 including the area 6 having many flat portions (the area where the fibers of the fiber layer are exposed).

Next, the grip surface 1A of the grip body 16 is subjected to polishing treatment using a known polishing machine. At this time, the front surface is ground to a line shown by a two-dot chain line in FIG. 6 with a substantially uniform thickness until the fibers 8 in the grip element 16 are exposed.

By this polishing treatment, the fiber layer 11 covered with the plate 10 in the gripping material 12 becomes a third layer in the region 6 having many flat portions.
As indicated by reference numeral 8 in the figure, it is only raised and is not scraped off.

On the other hand, in the regions 3 and 5 in which the small protrusions 4 are provided, the small protrusions 4 are formed individually and independently to form a small protrusion group. Since the running groove is formed, the fiber layer 11 is buried between the small projections 4 further inside than the bottom of the running groove as shown by the chain double-dashed line in FIG. 6 before polishing. Has been done.

That is, in the area 6 having many flat portions, the above-mentioned phenomenon hardly occurs,
The fiber layer 11 is embedded in a shallower position near the grip surface.

Accordingly, when the grip body 16 is polished from the surface to a uniform depth, the fibers 8 are exposed in the area 6 having many flat portions, and the fibers 8 are exposed in the areas 3 and 5 having many small projections 4. 8 is not exposed.

As a result, for example, as shown in FIG. 3, in the region 3 (5) where the small protrusions 4 are provided, almost no fiber layer 11 remains on the small protrusions 4,
The fiber layer 11 is exposed in the area 6 having many flat portions.

As a result, as shown in FIGS. 1 and 2, a design having regions 3 and 5 of special shape provided with small projections 4 in which the fibers 8 are barely exposed, and a region 6 having many flat portions where the fibers 8 are exposed. The grip 1 of the pattern can be obtained.

Further, in the above manufacturing method, as shown in FIG. 6, since the polishing treatment can be performed in a perfect circle, the polishing operation is easy.

Incidentally, it is also possible to manufacture it in a developed state as shown in FIG. 2 and form it into a grip shape by post-treatment.

The design pattern of the small protrusions 4 can be changed as appropriate and is not limited to that shown in the drawing. Further, the shape is not limited to that shown in the figure, and may be, for example, the shape shown in FIG. 7 or FIG. 8, and may be a concave such as a dimple instead of a protrusion.

Further, in the above embodiment, the right-handed grip has been described, but it goes without saying that the invention can be applied to a left-handed grip.

〔The invention's effect〕

As described above, according to the present invention, a fiber-exposed portion having an appropriate anti-slip effect and a soft grip feeling, and an unevenness-forming portion that has an anti-slip effect and can be firmly gripped are mixed. Because it is, the grip is surely gripped.

In addition, since the grip has a perfect circular shape, the fiber exposed part and the uneven part are formed at the same height, and it is comfortable to grip, and since both parts are touched and gripped at the same time, the slip prevention of both parts is synergistic. You can expect an effect.

Further, since the fiber layer is provided over the entire circumference of the grip, it has sufficient strength even in the uneven portion, and since it is not embedded inside the uneven portion and does not worsen the movement of the uneven portion,
It is possible to sufficiently prevent slippage by preventing movement of a portion that comes into contact with unevenness formed by a grip material integrally with the grip and independently formed one by one against stress in any direction.

Further, since a large number of irregularities are arranged at predetermined places, it is possible to expose the fibers in a region having many flat portions by polishing. Therefore, even with a complicated design pattern, it is possible to form a portion in which the fibers are exposed and a portion in which the fibers are not exposed, without deforming the portion that exhibits the grip original function.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a grip according to the present invention, FIG. 2 is a developed view thereof, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. Exploded explanatory view of the grip material used in the example of the manufacturing method, FIG. 5 is a schematic view showing a molding state in the manufacturing method according to the present invention, and FIG. 6 is a cross section of the grip element body after the same molding. Figures, 7 and 8
The figure is an explanatory view showing an example of small protrusions. 1 ... Grip, 3, 5 ... Area where small projections 4 are forested, 6 ...
Area with many flat parts, 7 ... groove, 8 ... Exposed fiber, 10 ...
Rubber plate, 11 ... Fiber cloth, 12 ... Grip material, 13 ... Core type,
14,15… type.

Claims (2)

[Claims] 1. A region in which a fiber layer is embedded in a grip material such as rubber or a soft synthetic resin and polished from the surface side to have a large number of irregularities on the surface which are integrally separated one by one with the grip material. In a grip of a golf club in which a fiber and an area for exposing the fiber of the fiber layer are formed, the cross-sectional shape is a perfect circle, the fiber layer is provided over the entire circumference, and the fiber of the fiber layer is The grip of a golf club, wherein in the region having the large number of irregularities, the region is embedded deeper than the region of the fiber layer where the fibers are exposed and is provided inside the irregularities. 2. A grip material comprising a plate made of rubber, soft synthetic resin or the like and a fiber layer having substantially the same size as that of the plate,
It is housed in a grip molding die and heated and compressed in this grip molding die to expose the abraded portion including a region where a large number of concavities and convexities are continuous and the fibers of the fiber layer in the portion corresponding to the grip surface. With a portion to be polished including a region, the recess of the portion to be polished including a region where the large number of concavities and convexities are continuous is deeper than the fiber layer of the portion to be polished including a region for exposing the fibers of the fiber layer, The fibrous layer of the abraded portion including the region where the irregularities are continuous is formed by molding the club material embedded inside the recess of the abraded portion including the region where the large number of irregularities are continuous, and then the surface of the grip element body. The method for manufacturing a grip of a golf club, wherein the whole is ground until the fibers of the fiber layer of the portion to be ground including the region where the fibers of the fiber layer are exposed are exposed.