JP2002360303A - Resin spike for golf shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin spike for a golf shoe attached to a sole, capable of exerting an excellent looseness-preventing function by elastic deformation of nonslip protrusion parts, and effectively preventing detachment of the spike attached to the sole. SOLUTION: This resin spike 1 is molded of a rubber-like elastic resin material, and is projectingly provided with a plurality of nonslip protrusion parts 7 in a lower face peripheral part of a seat plate-like base part 6 abutting on the sole and replaceably screwed to the sole. The nonslip protrusion part 7 is formed in conical shape, and its axis is inclined in the circumferential direction of the base part 6 and in a loosening direction of the base part 6. The rubber-like elastic resin material uses an elastic resin material having moderate elasticity and hardness such as polyurethane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin spike which is replaceably mounted on the sole of a golf shoe.

[0002]

2. Description of the Related Art Conventional so-called metal spikes having a single metal spike pin are apt to damage a green lawn. In particular, in recent years, as the number of golfers has increased, the damage to the green lawn has become severe, making maintenance difficult. Has become. For this reason, golf courses that require the use of resin spikes, so-called soft spikes, as protection measures for green turf are increasing.

[0003] Such a resin spike (soft spike) is generally manufactured from a metal material such as carbon steel by forming a spike base in which a reinforcing seat plate portion is connected to an end of a mounting screw shaft portion. The spike base is insert-molded and integrated into a resin spike body formed of an elastic resin material and provided with a large number of anti-slip projections on the lower peripheral edge of a seat plate-shaped base portion abutting the sole of a golf shoe. The mounting screw shaft is screwed into a screw hole of a female screw body provided on the sole of the shoe to be replaceably mounted (for example, Japanese Patent Application Laid-Open No. H11-225806). JP-A-11-26
No. 2401).

[0004]

However, in the case of the conventional metal spike, the mounting screw shaft is caulked integrally with the metal fastening washer, and the diameter of the washer is large. It could be strongly clamped against the bottom, so that the spikes hardly slackened during use.

[0005] However, in the case of a resin spike (soft spike), the reinforcing seat plate connected to the end of the mounting screw shaft has a very small diameter compared to the fastening washer of the metal spike. And, it is the seat plate-shaped base portion of the resin spike main body in which the reinforcing seat plate portion is insert-molded, and the seat plate-shaped base portion is formed to have a large diameter. ing. For this reason, when strongly tightened like a metal spike, the reinforcing seat plate portion digs into the base portion and deforms, so that the resin spike must be tightened with a smaller force than the metal spike. However, there was a problem that the spikes were loosened and easily dropped from the shoe soles.

As means for preventing such loosening of the spike, a microencapsulated adhesive is applied to the mounting screw shaft portion, or a projection for preventing loosening is provided on the shoe sole contact surface of the spike body. However, at present, an effective loosening prevention effect cannot be exerted because the tightening torque itself is small. In addition, although a locking means in which the female screw of the female screw body disposed on the sole is partially deformed has been proposed, in this case, there is a drawback that when the spike is replaced, the locking effect is extremely reduced. .

The present invention has been made in view of the above-mentioned conventional problems, and the resin spike itself mounted on the sole of the shoe exerts an excellent loosening prevention function by elastic deformation of the non-slip projection. It is an object of the present invention to provide a resin spike for golf shoes that can effectively prevent the spike attached to the sole from falling off.

[0008]

In order to achieve the above object, the present invention relates to a seat plate formed of a rubber-like elastic resin material, which is replaceably screwed to a shoe sole and is brought into contact with the shoe sole. A plurality of non-slip projections projecting from a lower peripheral edge of the base portion, wherein the anti-slip projections are formed in a cone shape, and an axis of the spikes extends in a circumferential direction of the base portion. And the base portion is inclined in a direction to loosen the base portion.

As the rubber-like elastic resin material, an elastic resin material having appropriate elasticity and hardness such as polyurethane is used.

The anti-slip projection is preferably in the shape of a truncated cone or a truncated pyramid with a spherical portion provided at the tip end, but may be formed in any other cone shape.

A metal spike base having a reinforcing seat plate connected to an end of a mounting screw shaft portion is insert-molded on the seat plate base in the same manner as a conventional product. In addition,
Depending on the material, it is also possible to integrally form the mounting screw shaft on the base plate-like base.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show a resin spike 1 according to the present invention. The spike 1 is made of a metal material such as carbon steel, and a spike base 2 having a reinforcing seat plate portion 4 connected to an end of a mounting screw shaft portion 3 and a rubber-like elastic resin material such as polyurethane. Molded by
A spike in which a plurality of (six in the illustrated example) anti-slip projections 7 are protruded from a lower surface (ground side) peripheral edge of a seat plate base 6 on which the seat plate 4 of the spike base 2 is insert-molded. And the main body 5 and the spike base 2
The structure integrated by insert molding is the same as that of a conventional resin spike, but each anti-slip projection 7 is provided so as to be inclined in the circumferential direction with respect to the seat plate base 6. There is a feature in the point.

Each of the non-slip projections 7 has a truncated cone shape and has a spherical portion 8 at a tip portion, and as shown in FIG. It is inclined in the circumferential direction of the base portion 6 and in the direction in which the base portion 6 screwed to the shoe sole is loosened, that is, in the direction in which the spike 1 is loosened. The inclination angle θ of the axis P of the truncated cone-shaped anti-slip projection 7 is preferably about 5.0 ° to 11.0 ° with respect to the perpendicular Z of the base 6.

In the figure, reference numeral 9 denotes a wrench engaging hole formed in the seat plate base portion 6 through the reinforcing seat plate portion 4 when the spike 1 is attached to the sole 10 of a golf shoe (see FIG. 6). A tightening wrench (not shown) is engaged with the two engaging holes 9 and 9 to rotate and tighten the base portion 6.

FIG. 6 shows a state in which the resin spike 1 constructed as described above is mounted on the sole 10 of a golf shoe, and the screw hole 1 of the female screw body 11 provided on the sole 10 is shown.
The mounting screw shaft portion 3 is screwed into 2 and tightened with a tightening wrench engaged with the engagement holes 9, 9 to be mounted on the shoe sole 10. As described above, when a vertical load is applied to the shoe sole 10 during walking or the like by the golf shoe having the spikes 1 attached to the shoe sole 10, since each anti-slip projection 7 is inclined in the circumferential direction, An unbalanced load that tends to fall in the direction occurs, and a horizontal stress indicated by an arrow A acts. As a reaction force, a circumferential stress indicated by an arrow B is generated at the base end of each anti-slip projection 7. Since the stress in the direction of arrow B acts in the direction of tightening the seat plate base 6, that is, the direction of tightening the spike 1, the spike 1 always acts in the tightening direction during walking or the like. . Therefore, the spike 1 is caused by the loosening of the screw shaft 3
Can be effectively prevented from falling off.

In the above-described embodiment, the anti-slip protruding portion 7 has a truncated cone shape, but may have a truncated pyramid shape or another pyramid shape. Further, the tip portion of the anti-slip projection 7 may be a flat surface instead of the spherical portion 8 as shown. Further, by selecting the elasticity and hardness of the rubber-like elastic resin material for forming the spike main body 5 including the anti-slip projection 7, the stress in the direction of tightening the base 6, that is, the stress in the direction of arrow B is appropriately set. be able to.

[0018]

As described above, the resin spike for golf shoes of the present invention exhibits an excellent loosening prevention function when used, and effectively prevents the resin spike attached to the shoe sole from falling off. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan view of a spike for a golf shoe according to the present invention as seen from the ground contact surface side. .

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1; .

FIG. 5 is a sectional view taken along the line 5-5 in FIG. 1;

FIG. 6 is an enlarged vertical sectional view of a main part showing a state in which a spike for a golf shoe according to the present invention is mounted on a shoe sole.

FIG. 7 is an enlarged perspective view of a spike for a golf shoe according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin spike 2 Spike base 3 Mounting screw shaft part 4 Reinforcement seat plate part 5 Spike main body 6 Seat plate base part 7 Non-slip protruding part 8 Spherical part 9 Wrench engagement hole 10 Shoe sole 11 Female screw body 12 Screw hole

Claims (4)

[Claims] 1. A plurality of non-slip projections are formed on a peripheral edge of a lower surface of a seat plate base portion which is formed of a rubber-like elastic resin material, is replaceably screwed to a shoe sole, and abuts on the shoe sole. A resin spike provided, wherein the anti-slip projection is formed in a cone shape, and an axis thereof is inclined in a circumferential direction of the base portion and in a direction to loosen the base portion. Resin spike for golf shoes. 2. The resin spike for golf shoes according to claim 1, wherein said rubber-like elastic body is polyurethane. 3. The resin spike for a golf shoe according to claim 1, wherein the anti-slip projection has a truncated cone shape and a spherical portion is provided at a tip portion. 4. The resin spike for a golf shoe according to claim 1, wherein the anti-slip projection has a truncated pyramid shape, and a spherical portion is provided at a tip portion.