JPH0321165B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a toe protection cover for baseball shoes that is used to cover the toe portion of a baseball shoe to protect the toe instep.

(Prior art) Baseball shoes, especially baseball shoes used by pitchers, are such that when pitching, the tip of the shoe to the toe shell (hereinafter simply referred to as the toe) rubs against the ground and breaks earlier than the main body of the shoe. It is.

For this reason, as shown in Figure 5, synthetic resin such as polyurethane with excellent strength and abrasion resistance is used to make shoes S.
It has a shape that covers the toe part of the shoe S, and has a horizontal opening (A) for inserting the toe part of the shoe, and a fixing periphery (C) to which reinforcing leather (B) is glued for fixing to the bottom periphery of the toe part of the shoe S. At the same time, the toe protection cover for baseball shoes is used to protect the toe shell of the baseball shoe by using a toe protection cover for baseball shoes in which a lace fixing tongue piece H formed in the lace hole D is connected to a part of the upper periphery of the lateral opening A. In addition, by replacing the toe protection covers for baseball shoes, the baseball shoes can be used for a long time.

(Problem to be Solved by the Invention) However, the conventional toe protection cover for baseball shoes is placed over the toe portion of the shoe before passing the shoelace through the shoelace hole, and the cover is placed over the toe portion of the shoe before passing the shoelace through the shoelace hole. After matching the lace holes of the toe protection cover for shoes, pass the shoelace through this and fix the upper edge of the toe protection cover for baseball shoes to the shoe, and overlap the fixing rim around the bottom edge of the toe part of the shoe. This must be attached by fixing it to the sole of the shoe using a nail N, and if this wears out, it is necessary to remove the nail N, untie the laces, and replace it with a new one. The installation and replacement of toe protection covers for baseball shoes requires skill and is difficult for amateurs to drive and remove nails. It was troublesome and uneconomical to have to ask a competent company to do the work each time it was replaced.

In addition, each time the toe protection cover for baseball shoes is replaced, the nails damage the bottom edge of the toe part of the shoe, which not only reduces the durability of the baseball shoe, but also makes it difficult to fix the toe protection cover for baseball shoes. If the toe protection cover for the baseball shoe comes off during play, it may cause an inconvenience.

Furthermore, since the conventional toe protection covers for baseball shoes have a fixing periphery for fixing to the bottom periphery of the toe portion, they must be manufactured to correspond to the size of the shoe, and many Not only is the material required, which is uneconomical, but the toe protection cover for baseball shoes may not be able to be attached to some baseball shoes because the spikes on the bottom of the shoes get in the way.

Furthermore, in a configuration in which the fixing periphery is nailed,
Sand, etc. can easily enter between the joint surface between the fixing periphery between the nails and the bottom of the toe of the shoe, and combined with the increased weight due to the formation of the fixing periphery, the baseball shoe becomes heavier, which not only increases fatigue but also increases fatigue. It has drawbacks such as causing problems with play.

The present invention solves the above-mentioned conventional drawbacks, and provides a lightweight and inexpensive toe protection cover for baseball shoes that can be reliably attached without damaging the toe bottom surface and can be easily attached and replaced by baseball shoe users. is intended to provide.

(Means for Solving the Problems) The toe protection cover for baseball shoes of the present invention includes a fixing tongue piece having a hole for fixing a string and a toe covering piece that covers the toe part of the shoe. The cover member is curve-molded so that the inner surface overlaps the circumferential surface of the toe portion of the shoe, and the lateral opening for inserting the toe portion of the shoe and the opening edge follow the circumferential surface of the toe portion of the shoe. The cover main body has a lower opening, and a layer of hot melt adhesive that can be peeled off by heating or solvent penetration is formed on the inner surface of the cover main body, including at least the inner edge of the lower opening. It is a feature.

(Example) Next, an example of the toe protection cover for baseball shoes of the present invention will be described in detail based on the drawings.

FIG. 1 is a perspective view of a toe protection cover for baseball shoes according to the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG. 1.

In the figure, reference numeral 1 is a cover for the right foot made of natural leather, in which a fixing tongue piece 3 with a hole 2 for fixing the string and a toe covering piece 4 that covers the toe part of the shoe are arranged in series. A lateral opening 5 for inserting the toe portion of the shoe, whose inner surface is curved and overlapped with the circumferential surface of the toe portion of the shoe, and a lower opening whose opening edge follows the circumferential surface of the toe portion of the shoe. 6 is formed.

The other parts of the cover body 1 except for the upper peripheral edge of the horizontal opening 2 and the part of the fixing tongue piece 3 (the one-piece part 10 indicated by the broken line in FIG. It has a three-layer structure in which the toe covering piece 4 is reinforced by separating the toe covering piece 4 into a layer 4b and adhering it with an adhesive 4c made of urethane prepolymer.

Reference numeral 8 denotes a hot-melt adhesive layer made of acrylic, polyamide, etc., which is melted and bonded by heating at about 80°C to 150°C, and is attached to the inner edge 7a of the lower opening 6 of the cover main body 1 and the side opening. It is formed in a band shape on the lateral inner edge 7b of the portion 5 and the inner surface 7c of the toe covering piece 4 having a three-layer structure, and a release paper 9 is adhered to the surface thereof.

The hot-melt adhesive layer 8 may be an acrylic hot-melt pressure-sensitive adhesive, a film-like nylon thermal adhesive {Diamide (registered trademark) manufactured by Daicel Chemical Co., Ltd.}, a polyester film, ethylene-vinyl acetate copolymer (EVA), or the like. , which melts when heated and exhibits adhesive strength.

The toe protection cover for baseball shoes configured as described above is made of a natural leather sheet having a predetermined thickness.
The surface layer 4 is cut along the leather layer except for the single piece 10 that extends from the upper periphery of the horizontal opening 2 to the fixing tongue 3.
A peeling process in which the two layers a and back layer 4b are separated into two layers, and an adhesion step in which the two surfaces layer 4a and back layer 4b are bonded together using an adhesive 4c made of urethane prepolymer were carried out in sequence, and this was dried. After that, it is placed in a hanging mold and curved so that the inner surface overlaps the circumferential surface of the toe of the shoe.Finally, the inner edge 7a of the lower opening 6 of the cover main body 1 and the side opening 5 are formed. It is manufactured by forming a band-shaped hot melt adhesive layer 8 on the side inner edge portion 7a and the inner surface 7c of the toe cover piece 4 having a three-layer structure, and pasting a release paper 9 on the surface thereof.

When attaching the toe protection cover for baseball shoes to the toe part of the baseball shoe, first peel off the release paper 9 and attach the toe part T of the baseball shoe S as shown in FIG.
After passing the shoelace B, which is worn on the upper part of the shoe, through the hole 2 for fixing the shoelace, a cloth, paper, etc. is applied to the outer surface on which the hot melt adhesive layer 8 is formed, and a heated iron is applied to the shoelace B. This can be done by pressing it against each other, or by applying hot air with a hair dryer or the like to press and fix it.

Additionally, if the toe protection covers for baseball shoes wear out and need to be replaced, untie the shoelaces and apply a solvent, e.g. adhesive, that dissolves the hot melt adhesive layer.
In the case of EVA, apply cyclohexane to the adhesive part and remove the worn baseball shoe toe protection cover from the toe part of the baseball shoe, or in the case of acrylic or nylon, heat the adhesive part with heating means such as ironing. It is melted and removed, and a new toe protection cover for baseball shoes is attached using the above-mentioned attachment method.

In the above embodiments, natural leather was used as the main material of the cover, but the cover is not limited to this, and may be made of synthetic leather or synthetic resin. Also,
Although the case where the main body of the cover partially has a three-layer structure has been described, the entire cover may have a one-layer structure.

Furthermore, the hot melt adhesive layer 8 is formed at the inner edge 7a of the lower opening 6 of the cover main body 1.
Although it is preferable that the lateral inner edge 7b of the lateral opening 5 and the inner surface 7c of the toe covering piece 4 having a three-layer structure be used, the present invention is not limited thereto, and at least the lower opening of the cover main body. 6 inner edge 7a
It suffices to have an inner surface that includes.

In addition, in order to bring the end surface of the lower opening 6 of the cover main body 1 into close contact with the joint boundary between the front upper skin member and the bottom member without any step, the lower opening 6 of the cover main body 1 is attached as shown in FIG. The inner edge 7a of the adhesive may be thinly cut out, and the hot melt adhesive layer 8 may be formed on this cut surface.

(Operations and Effects of the Invention) The toe protection cover for baseball shoes of the present invention described above has a heating or Since a hot-melt adhesive layer is formed that can be peeled off by penetrating a solvent, even an amateur can easily and reliably attach and replace the toe protection cover for baseball shoes using heating means such as an iron. This eliminates the need for the conventional work that requires skill, such as fixing the fixing edge around the sole of the toe of the shoe using stacked nails, or pulling out the nail for replacement. The troublesome and uneconomical need to rely on a contractor each time to install or replace shoes is eliminated.

Furthermore, since the toe protection cover for baseball shoes is configured to be removably adhered to the toe portion of the shoe, there is no damage caused by nails to the bottom periphery of the toe portion of the shoe, unlike in the prior art. This eliminates the inconvenience of the toe protection covers for baseball shoes coming off during play because of the presence of nail marks that are formed each time they are replaced. Toe protection covers for baseball shoes can always be securely and stably fixed regardless of the number of times.

Furthermore, the toe protection cover for baseball shoes of the present invention includes:
Since at least the inner edge of the lower opening of the cover main body is adhered to the circumferential side of the toe portion of the shoe, there is no need for a fixing circumferential edge for fixing to the circumferential edge of the toe sole of the shoe as in the past. The lower opening has flexibility. For this reason, the fixation periphery was overlapped and fixed to the sole of the shoe, resulting in
This solves the problem of not being able to attach toe protection covers for baseball shoes because the spikes on the bottom get in the way, or having to manufacture toe protection covers for baseball shoes in various sizes to accommodate different sizes of shoes. By manufacturing one type of toe protection cover for baseball shoes, it can be used for baseball shoes of various sizes, and moreover, the amount of material used can be reduced, and an inexpensive toe protection cover for baseball shoes can be provided.

Furthermore, in the conventional configuration in which the fixing periphery is nailed, sand etc. easily enter between the joint surfaces between the fixing periphery between the nails and the bottom surface of the toe of the shoe, and the formation of the fixing periphery increases the weight. Combined with this, the baseball shoe becomes heavy, which not only increases fatigue but also interferes with play. However, in the present invention, at least the inner edge of the lower opening of the cover main body is connected to the circumferential side of the toe portion of the shoe. Since the structure is such that a fixing periphery is not required, the intrusion of sand is eliminated, the weight is reduced, and increased fatigue and play problems can be eliminated.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a toe protection cover for baseball shoes according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 3 is a usage state of the toe protection cover for baseball shoes according to the present invention. FIG. 4 is a sectional view of the tip of a toe protection cover for baseball shoes according to another embodiment, and FIG. 5 is a sectional view of a conventional toe protection cover for baseball shoes. 1... Cover main body, 2... Hole for string fixation, 3...
Fixing tongue piece, 4... Toe covering piece, 4a... Surface layer, 4
b...back layer, 4c...adhesive, 5...lateral opening, 6...lower opening, 7a...inner edge, 7b
... lateral inner edge portion, 8 ... hot melt adhesive layer,
9...Release paper, 10...One piece part, S...Baseball shoe, T...Toe part, B...Shoelace.

Claims (1)

[Claims] 1. A cover member in which a fixing tongue piece with a hole for fixing a lace and a toe covering piece that covers the toe part of the shoe are connected is curved so that the inner surface overlaps the circumferential surface of the toe part of the shoe. A cover main body formed by molding to form a lateral opening for inserting the toe part of the shoe and a lower opening whose opening edge follows the circumferential side of the toe part of the shoe, the cover main body having at least a front lower part thereof. A toe protection cover for a baseball shoe, characterized in that a hot melt adhesive layer that can be peeled off by heating or solvent penetration is formed on the inner surface including the inner edge of the opening.