JPH0647291Y2 - Replaceable cleats for sports shoes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of replaceable cleats used for sports shoes such as baseball shoes and mountain climbing shoes.

(Prior Art) As an example of the description of the conventional art, a baseball shoe will be described as an example.

That is, a metal spike 10 as shown in FIG. 4 was attached to the shoe sole body 9 of a baseball or the like. Recently, a new ceramic spike 11 shown in FIGS. 5 and 6 has been proposed in place of the metallic spike 10.

(Problems to be Solved by the Invention) These conventional spiked baseball shoes have the following problems.

In other words, with the metal spike 10, the weight of the spike itself is heavy, and therefore the weight of the baseball shoe is also heavy, which hinders the smooth movement of the athlete and causes the fatigue of the foot to be large, and the repeated wear of the shoe. The use of softball is prohibited because the metal tends to be worn during use, which may cause sharp spike tips and risk.

On the other hand, in order to improve the drawbacks of these metal spikes,
Baseball shoes with ceramic spikes 11 are now on sale.

Certainly, the spike 11 made of new ceramic is excellent in wear resistance unlike the spike 10 made of metal, but the adhesion between the spike and the fixing member 12 made of synthetic resin holding this spike is poor,
As the wear frequency increases, the synthetic resin fixing member wears out, and as the wear progresses, the new ceramic spikes fall out, and the durability of the shoe itself is short even though the price is high. It also had problems.

Therefore, in consideration of these drawbacks, replaceable cleats using a synthetic resin such as polycarbonate resin alone have been devised, but in the conventional synthetic resin replaceable cleats, the claw part and the main body part are the same. Since it is made of synthetic resin, if the wear resistance of the claws is improved, the rigidity of the main body becomes too high, and especially in a replaceable cleat having two or more claws, the connecting part is easily broken. there were.

On the other hand, in consideration of cracking of the main body portion, if it is made of a flexible synthetic resin that is not easily cracked, there is a problem that the wear resistance of the claw portion is significantly reduced.

(Means for Solving the Problems) The present invention is a replacement for use in sports shoes such as baseball shoes and mountain climbing shoes that have improved wear resistance and durability in view of these conventional defects, and have improved weight reduction and push-up feeling. It is intended to provide formula cleats.

That is, in a replaceable cleat that is screwed to a shoe bottom body of sports shoes such as a baseball shoe with a bolt or the like, and the claw portion has a wear resistance, the claw portion includes a body portion and an insertion hole. It is made of a material that is good, hard and has high rigidity, and is formed in an arc shape. The claw part has a semi-circular cutout part for mounting a bolt inside, and a circumferential groove part is formed in the lower part of the claw part. The main body portion is made of a synthetic resin having flexibility more than that of the claw portion, and the claw portion is provided so as to project on an upper surface of a fixing member formed around a bolt insertion opening of the main body portion, The replaceable cleat for sports shoes is characterized in that the lower part of the claw portion is integrated by a fixing member.

As the material of the claw portion of the replacement cleat of the present invention, new ceramics such as zirconia, alumina, silicon nitride and cermet, and synthetic resins such as polycarbonate, polyurethane and polyamide are used alone, or these synthetic resins are reinforced fibers. Those reinforced with a reinforcing member such as a whisker or the like can be used.

On the other hand, as the main body portion and the fixing member, polyurethane, elastomer, polybutadiene RB (manufactured by Japan Synthetic Rubber Co., Ltd.) or the like can be used.

(Operation) With the above configuration, the following operation occurs.

That is, in the replaceable cleats of the present invention, the material forming the claws of the cleats is a material having good wear resistance, high hardness, and high rigidity, while the synthetic material forming the body of the cleats is used. As the resin, a synthetic resin that is flexible and more flexible than the claws is used, and by embedding and integrating the claws, wear resistance and flexibility that are not available in conventional or replaceable cleats. It is possible to provide a durable replaceable cleat having the following.

Further, in order to securely fix and hold the wear-resistant claw portion to the fixing member that forms the main body portion, a peripheral groove portion is formed at a portion embedded in the main body portion below the claw portion, By fitting the synthetic resin, which is the fixing member, to the portion of (1), the adhesion between the claw portion and the fixing member, which is the main body portion, is further improved.

In addition, since the claws are embedded and covered with a fixing member made of a flexible synthetic resin and are screwed to the sole body with bolts or the like, stress is applied to the claws of the cleats during wearing. Also, since the stress is relieved by the fixing member that is wrapped so as to surround the claw portion, unlike the conventional cleats, an uncomfortable feeling such as a push-up feeling is prevented and shock absorption is improved.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, a replacement that is screwed to a shoe sole body 7 of a sports shoe such as a baseball shoe with a bolt 8 or the like. In the replaceable cleat 1, the replaceable cleat 1 has a claw portion 2 formed of a material having good wear resistance, hardness, and high rigidity, and securely fixes the claw portion lower portion 2a. A replaceable cleat for sports shoes, characterized in that it is integrated by a fixing member 3 made of synthetic resin that is more flexible than the material forming the claw portion 2.

Further, the replaceable cleat 1 has an arcuate claw portion 2 and a semicircular cutout portion 4 for mounting a bolt, and a body portion 3a of the cleat 1 is formed with a bolt insertion hole 5 and The replaceable cleat for sports shoes is characterized in that the lower part 2a of the claw part is integrally embedded, and a peripheral groove part 6 is formed in the lower part 2a of the claw part.

In addition, new ceramics can be used as the claw portion 2 of the replaceable cleat 1 of the present school, and glass fiber reinforced nylon or carbon fiber reinforced nylon which is a fiber reinforced thermoplastic other than the above-mentioned ones can be used. It is also possible to do so.

Furthermore, it is possible to use silicon carbide, potassium titanate, or other whiskers as a reinforcing fiber member by mixing them with the above-mentioned synthetic resin, and by mixing these whiskers, abrasion resistance is significantly improved and It is also possible to prevent brittleness and to prevent the nail portion from chipping or cracking.

Further, it is desirable that the fixing member 3 forming the main body portion 3a is made of lightweight and flexible polyurethane, nylon 11, nylon 12, polybutadiene, or the like.

Since the above configuration is possible, the claw portion 2 and the main body portion
By changing the shade of the fixing member 3 which is 3a,
It is possible to supply replaceable cleats for two-color molding with a good color sense.

In addition, as the replaceable cleats 1 of this school plan, the claw 2
If the fixing member 3 that is the main body portion 3a and the fixing member 3 are molded with the same type of synthetic resin, the adhesion between the two when injected is
It is remarkably good and the durability is improved without causing adhesion failure.

The replaceable cleats according to the present invention may have a plurality of forms such as one claw portion or two or three claw portions as shown in FIG. These can be arbitrarily selected when designing shoes.

(Effects of the Invention) With the above-described configuration of the present invention, the following effects are achieved.

That is, in the replaceable cleats of the present invention, the material forming the claws of the cleats is a material having good wear resistance, high hardness, and high rigidity, while the synthetic material forming the body of the cleats is used. As the resin, a synthetic resin that is flexible and more flexible than the claws is used, and by embedding and integrating the claws, wear resistance and flexibility that are not available in conventional replaceable cleats Since it is possible to provide durable replaceable cleats, it is possible to prevent danger because the tip of the spike does not become sharper when worn, unlike conventional baseball shoes equipped with metal spikes. However, it is possible to supply sports shoes such as highly safe baseball shoes.

Also, unlike conventional baseball shoes in which spikes made of new ceramics are attached and integrated, the durability of the shoes themselves such as baseball shoes is improved by replacing them with new cleats as appropriate even if they are worn and worn. Is longer and has an economical effect.

Further, in order to securely fix and hold the wear-resistant claw portion to the fixing member that forms the main body portion, a peripheral groove portion is formed at a portion embedded in the main body portion below the claw portion, By fitting the synthetic resin, which is the fixing member, to the part of, the adhesion between the claw and the fixing member, which is the main body part, is further improved, it also prevents cracks and chips, and the durability of the replaceable cleat itself. Is also good.

In addition, since the claws are embedded and covered with a fixing member made of a flexible synthetic resin and are screwed to the sole body with bolts or the like, stress is applied to the claws of the cleats during wearing. Also, since the stress is relieved by the fixing member that is wrapped so as to surround the claws, unlike conventional cleats, it prevents discomfort such as a push-up feeling and also improves shock absorption, so that the feeling of wearing is improved. There are also effects such as being good.

[Brief description of drawings]

1 is a perspective view showing a replaceable cleat according to the present invention, and FIG. 2 is a cross-sectional view of a main portion showing a cross section of a claw portion of FIG.
FIG. 3 is a plan view showing an embodiment of the contact surface side of the outsole of the baseball shoe according to the present invention, and FIG. 4 is the contact surface of the outsole of a baseball shoe fitted with a conventionally known metallic spike. FIG. 5 is a plan view showing the side, FIG. 5 is a plan view showing the ground contact surface side of the outsole of a baseball shoe provided with a conventionally known ceramic spike, and FIG. 6 is a view taken along the line BB of FIG. The principal part expanded sectional view which shows a cross section. 1: Replaceable cleats, 2: Claw part, 2a: Lower part of claw part, 3: Fixing member, 3a: Main body part, 4: Cutout part, 5: Insertion hole, 6: Circumferential groove part,
7: shoe sole body, 8: bolt, 9: shoe sole body, 10: metal spike, 11: new ceramic spike, 12: fixing member.

Claims (2)

[Scope of utility model registration request] 1. A replaceable cleat screwed to a shoe bottom body of sports shoes such as a baseball shoe with a bolt or the like, wherein the claw portion, the body portion, and the through hole have a resistance of the claw portion. Made of a material that has good wear resistance, hardness, and high rigidity, is formed in an arc shape, and has a semicircular cutout portion for mounting a bolt inside the claw portion,
A peripheral groove portion is formed in the lower portion of the claw portion, the main body portion is made of a synthetic resin that is more flexible than the claw portion, and the claw portion is formed on the upper surface of a fixing member formed around the bolt insertion opening of the main body portion. A replaceable cleat for sports shoes, characterized in that the portion is provided so as to project, and the lower portion of the claw portion is integrated by a fixing member. 2. The replaceable cleat for sports shoes according to claim 1, wherein the claw portion of the replaceable cleat is made of new ceramics or a synthetic resin having abrasion resistance.