JPH0686522U - Shoe reinforcement - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to improve the shape retention and durability of a reinforcing material used on an arbitrary portion of the instep of a shoe. [Structure] Reinforcing material for shoes used on any part of the instep of the shoe is made of synthetic resin, which has excellent elasticity and rigidity and shape memory alloy mesh plate and non-woven fabric plate, which are excellent in shape shaping. Reinforcement material for shoes consisting of the formed structure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shoe reinforcement material used for reinforcement and prevention of deformation of an instep cover such as a toe portion, a heel portion, or an arch portion of the shoe.

[0002]

[Prior art]

 Shoes, especially the toes, heels, arches, etc. of sports shoes, may be worn or deformed due to use by laminating instep materials or foreign materials to prevent abrasion or deformation. Reinforcement material is provided to prevent this. In particular, since the instep cover made of synthetic fiber such as nylon cloth is vulnerable to friction, shoes using a reinforcement made of natural leather or synthetic leather for the toes and heels are provided.

[0003]

[Problems to be solved by the device]

 However, since the part where natural leather or synthetic leather is used as the leather is thick, it is difficult to fit in the shoe mold during manufacturing, and wrinkles may form, resulting in poor adhesion and poor finish. There was a problem above. In particular, since the arch has a delicate arch-shaped curved surface and wrinkles easily form, it is difficult to form the material. Therefore, a material having good formability is required.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention utilizes the material characteristics of shape memory alloy, which is excellent in elasticity and rigidity and is also excellent in shape-forming property, to make a mesh plate or a non-woven cloth plate made of a shape memory alloy synthetic resin. The above-mentioned problem is to be solved by using a reinforcing material for the instep that is formed as a reinforcing material for the above. The shape memory alloy material used in the present invention is arbitrary, but as an example thereof, a mesh plate or a non-woven fabric plate formed of a Ti—N i alloy thin wire material is suitable.

[0005]

【Example】

 Examples will be described below. FIG. 1 is a perspective view of a shoe showing an example of a structure in which the reinforcing material of the present invention is used for an arch, FIG. 2 is an enlarged plan view of the reinforcing material of FIG. 1, and FIG. FIG. 3 is a cut end view of the Y-Y portion of FIG.

First, a reinforcing material for a shoe that is three-dimensionally formed in advance corresponding to the shape of a desired portion such as a toe portion, a heel portion, or an arch portion of the shoe will be described. The embodiment of FIG. 1 is an embodiment drawing in which the reinforcing material 4 is used for the arch A of the instep 1, and the description will be made based on this. The arbitrary shape memory alloy mesh plate 11 is cut into a shape corresponding to the arch A, and the shape memory alloy mesh plate 11 is three-dimensionally shaped in advance by a heating press or the like so as to be in close contact with the arch of the shoe tree. Reinforce the shoe 10 by memorizing it, arranging the reinforcement 10 in the mold, clamping the mold, and then injecting the synthetic resin 3 from the injection port to integrate the reinforcement 10 and the synthetic resin 3 into one piece. The material 4 is formed. Then, the three-dimensionally formed reinforcing member 4 is sewn to the arch A of the instep during the instep to make the instep 1, and the instep 1 is fished into the wooden pattern, the counter 6, the midsole 7 and the out The shoe B is formed by bonding the sole 8 and the like.

Next, a flat plate-shaped reinforcement material corresponding to the shape of a desired portion such as a toe portion, a heel portion, or an arch portion of a shoe is sewn on an instep cover, and the reinforcement material is three-dimensionally formed at the time of making shoes. The reinforcement material of the shoe when the shape is memorized will be described. A reinforcing material 10 made of a shape memory alloy mesh plate 11 having an arbitrary shape and a synthetic resin sheet made of synthetic resin 3a are formed, and the synthetic resin sheet is cut into the shape of the arch A to form the reinforcing material 4, The material 4 is sewn to the arch A of the instep at the time of making the instep to form the instep 1, the instep 1 is fished into a wooden mold, and the reinforcing material 4 is applied with hot air or a hot iron to form a three-dimensional shape. When it is memorized, the instep cover 1 that has been hooked into the shoe pattern closely adheres to the tree pattern, and the instep cover 1 and the counter 6, the midsole 7, the outsole 8 and the like are bonded to form the shoe B 1.

The reinforcing material 10 formed of a non-woven fabric made of an arbitrary shape memory alloy is also formed by the same means as described above, but the description of the embodiment is omitted.

The arbitrary shape memory alloy used in the present invention includes a Ti—Ni alloy and the like, and the synthetic resin is preferably a nylon resin, a polyurethane resin, or one having excellent elasticity. The shape memory temperature of an arbitrary shape memory alloy must be higher than the melting temperature of the synthetic resin if the shape is to be memorized in advance. Must be capable of shape memory within the melting temperature of the synthetic resin. The Ti-Ni alloy is suitable as the shape memory alloy of the present invention because it has a wide degree of design freedom in the transformation start temperature corresponding to the general melting temperature of synthetic resins, can be easily processed into fine wires.

Regarding the shape of the reinforcing material 4 of the shoe, as shown in FIG. 1, in addition to providing it on the arch A, for example, the toe skin 2 and the heel skin 5 of FIG. In addition, in the case of sucker shoes and rugby shoes, it is preferable to use it for the tongue skin 9, and it can be used for general shoes other than sports shoes. Also, regarding the shape of the reinforcing material 10, it is possible to form a plurality of sheets partially by overlapping so as to have a thickness, etc., as desired.

Further, in the production of a mesh material or a non-woven fabric material, if a fine wire of a shape memory alloy and a fine wire of a synthetic resin such as nylon resin are formed in combination, the fine wire can be formed by heating and pressing used for forming after cutting. The synthetic resin melts to become a binder, which can improve the workability because it can prevent the deformation of the shape-memory alloy reinforcing material by improving the bonding of the fine wires of the shape-memory alloy.

[0012]

[Effect of device]

 The shape memory alloy used in the present invention has extremely high elasticity as is generally called a super elastic material, and the shape memory alloy can be quickly restored to its original shape even if it is deformed by an external force. Since it has the property of being excellent in shape retention compared to conventional carbon fiber or glass fiber reinforced materials, there is no risk of deformation even if it is made thinner, and adhesion to human body is improved. Since the stress applied to the legs during exercise is absorbed by the entire surface of the reinforcing material of the shoe, shock absorption is improved and damage to the foot is prevented. Also, by changing the wire diameter of the shape memory alloy wire and the density of the mesh, it is possible to adjust the elasticity and rigidity of the reinforcing material of the shoe, improving the degree of freedom in design and improving the usability. Also, by making the color tone of the reinforcing material different from that of the synthetic resin, or by making the synthetic resin a transparent material, it is possible to provide an elegant design.

[Brief description of drawings]

FIG. 1 is a perspective view of a shoe showing an example of a structure in which the reinforcing material of the present invention is used for an arch portion.

FIG. 2 is an enlarged plan view of the reinforcing member of FIG.

FIG. 3 is a cut end view of the YY portion of FIG.

[Explanation of symbols]

 1 Instep 2 Cover skin 3 Synthetic resin 3a Synthetic resin 4 Reinforcement material 5 Patch skin 6 Counter 7 Midsole 8 Outsole 9 Velor skin 10 Reinforcement material 11 Mesh plate made of shape memory alloy A Foot arch B Shoes

Claims (5)

[Scope of utility model registration request] 1. A shoe comprising a leather, a synthetic leather, a synthetic fiber cloth or any other material and a reinforcing material provided on an arbitrary portion of the instep of the shoe, wherein the reinforcing material of the instep is reinforced with a shape memory alloy of an arbitrary shape. Reinforcing material for shoes, which is made of synthetic resin. 2. The reinforcing material for shoes, wherein the reinforcing material having an arbitrary shape is formed of a synthetic resin having a shape memory alloy mesh plate as a reinforcing material. 3. The reinforcing material for shoes according to claim 1, wherein the reinforcing material having an arbitrary shape is formed of a synthetic resin having a shape memory alloy non-woven fabric plate as a reinforcing material. 4. The reinforcing material having an arbitrary shape is integrated with a synthetic resin injected into the molding die after the reinforcing material made of a shape memory alloy is stored in a desired shape in advance and then placed in the molding die. The reinforcing material for a shoe according to claim 1, wherein the reinforcing material is formed on the shoe and sewn to an arbitrary portion of the instep of the shoe. 5. The reinforcing material having an arbitrary shape is formed by forming a synthetic resin sheet using a mesh-shaped or non-woven sheet made of a shape memory alloy as a reinforcing material, and cutting the synthetic resin sheet into a predetermined shape to form an instep cover. 4. The reinforcing material for shoes according to claim 1, wherein the upper cover is sewn, the upper cover is hung on a wooden mold, and hot air or a hot iron is applied to the shape so that the shape is memorized in a three-dimensional shape.