JPH0225283Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in the sole of a baseball shoe equipped with spikes.

Conventionally, L-shaped spike metal fittings 1 made of steel, as illustrated in FIG. 1, have often been used in the soles of baseball shoes. In other words, this spike metal fitting 1
The vertical member 1a and the horizontal member 1b are integrally formed, and a bolt 3 is inserted into a mounting hole 2 drilled in the horizontal member 1b, and screwed and fixed to a board (not shown) buried in the sole of the shoe. Shoe soles constructed with this structure were common.

However, since such spike fittings 1 are made of steel, they have the disadvantage of being heavy and placing a large burden on the feet.In order to overcome these disadvantages, a steel plate with as thin a wall as possible is used.
There are disadvantages in that the angle between the vertical member 1a and the horizontal member 1b gradually changes, resulting in easy deformation, and the vertical member 1a is subject to severe wear.Furthermore, the spike fitting 1 is directly screwed into the substrate buried in the sole of the shoe. However, due to the fixed mounting structure, the shock caused by grounding is directly transmitted to the body, which has an adverse effect on the exerciser.

This idea was devised in view of the drawbacks of conventional baseball shoe soles equipped with spikes as mentioned above.
The spikes are made of a lightweight and highly abrasion-resistant material such as ceramic, and the side surface is almost T-shaped, with the ground contact part and the embedded part that is embedded in the sole of the shoe integrally formed. It is characterized by having been.

Hereinafter, an embodiment of the present invention will be described in detail with reference to figures.

FIG. 2 is a side sectional view showing the spike 4 attached to the sole F of the present embodiment, and the spike 4 has a grounding part 5 and an embedded part 6 for fixing to the sole F. The grounding part 5 is formed of a T-shaped integral part that is substantially perpendicular to each other, and has a tapered shape with a tapered surface 5a, and is continuous with the embedded part 6 through a neck part 7 that is thinner than the grounding part 5. It is molded into a shape. Such spikes 4 are planted (attached) to the sole F in the state shown in the figure, and are embedded in the embedded part 6 and the stepped part 5b of the neck part 7.
It is usually implanted up to In this case, the stepped portion 5b is planted such that a part of the sole F is seated against the raised surrounding portion G.

By the way, the spike 4 of the present invention having the above-mentioned structure can be made of cermet, which is a superhard material, or a ceramic body. Among these, as the ceramic body,
If a ceramic such as alumina, silicon nitride, or silicon carbide is used, and in particular a partially stabilized zirconia ceramic having high toughness and strength is used, the spike 4 can have excellent impact resistance. By adding pigments such as metal oxides to the raw materials, these ceramic bodies can be colored as desired, which not only improves the abrasion resistance of the ceramic materials, but also provides a good color that does not cause coloration. It can also have an effect.

On the other hand, synthetic resins such as rubber, nylon, vinyl, and urethane are often used as sole members forming the sole F of the shoe.

According to the shoe sole configured as described above, the spikes 4 have the grounding portions 5 tapered by the tapered surfaces 5a, so that when the spikes 4 touch the ground, the grounding portions 5 easily enter the soil. Moreover, due to the high hardness and high toughness of ceramic materials, it does not deform or break, and it also has high abrasion resistance, so it exhibits great durability even after long-term heavy use without wear.

Furthermore, since the stepped part 5b formed between the ground contact part 5 and the neck part 7 is seated on the surrounding part G formed by a part of the sole F, the impact applied to the ground contact part 5 is The force is absorbed and alleviated by the surrounding portion G, which reduces the weight and eliminates any adverse effects on the exerciser.

Furthermore, as in the spikes 4 in the embodiment shown in FIG. 4, an organic substance constituting the sole F is filled into a communication hole 8, such as a round or square shape, penetrating both the front and back sides of the neck 7. Therefore, the spikes 4 can be stably attached to the sole F and have an improved shock absorbing ability, and are also effective in reducing the weight of the spikes 4.

Note that the shape of the neck part 7 does not have to be the plate shape shown in the figure, as long as it can be integrally connected to the ground contact part 5, and the shape of the embedded part 6 can also be made of rubber or synthetic resin that constitutes the sole F. Various modifications are also possible, such as making the surface wave-shaped so that the parts can be easily combined, or making a communication hole 9 similar to the one made in the neck part 7.

As described above, according to the sole of the present invention, the grounding part and the embedded part are integrally molded, almost T-shaped, and are made of cermet ceramic, etc.
Because it is lightweight and highly abrasion resistant, when playing baseball it is nimble, has excellent maneuverability, and has a long life.
In addition, since it has elasticity that absorbs impact, it can be attached to the sole of the shoe, and the transmission of impact to the human body upon contact with the ground is greatly alleviated, resulting in an excellent baseball shoe.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional baseball spike fitting, and FIGS. 2 and 3 are a side sectional view and a front view, respectively, showing a part of a shoe sole according to an embodiment of the present invention. FIG. 4 is a partially cutaway front view of the sole of another embodiment of the present invention. 4...Spike, 5...Grounding part, 6...Embedded part, 7...Neck.

Claims (1)

[Scope of utility model registration request] The grounding part that contacts the ground and the embedded part that is embedded and fixed in the sole of the shoe are integrally formed in a substantially T-shape using ceramic material, and the grounding part has a tapered shape, and A sole for a baseball shoe, characterized in that a spike with a stepped portion formed at the neck is attached to a sole material such as rubber or synthetic resin.