JPH0711904U - Stepping prevention plate for safety shoes - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the resistance to piercing without sacrificing the flexibility of safety shoes and the adhesion to the outsole and insole. [Structure] One or more wire nets 15 of 20 to 100 mesh and a flexible sheet 17 such as rubber, plastic, woven cloth or non-woven cloth are laminated or the wire nets 15 are sandwiched by the flexible sheets 17. Become.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a footstep prevention plate for safety shoes that does not impair flexibility and has high footstep resistance.

[0002]

[Prior art]

 Conventionally, JIS T8101 specifies that the safety shoes have a piercing resistance of "a nail does not penetrate at 50 Kgf or more". In order to comply with this regulation, metal plates, compressed paper plates, fiber compression plates, etc. have been used as footstep prevention plates in safety shoes.

[0003]

[Problems to be solved by the device]

 By the way, these punch-through prevention plates have the following problems.

(1) Although the metal plate has a high resistance to punching through, it has poor flexibility and poor adhesion to the outsole and the insole, resulting in poor workability during shoemaking. In addition, during use, it sometimes floated or cracked.

(2) Compressed paper sheets are not so high in piercing resistance, but are often used because they are cheaper in price. However, because they are hard, they are not flexible. It was bad.

(3) The fiber compression plate has high punch-through resistance, but it is expensive and not flexible.

The object of the present invention is to improve the above-mentioned problems, without sacrificing the flexibility of the safety shoe, and without impairing the adhesiveness to the outsole and the insole, and to improve the piercing resistance. It is to provide a high footstep prevention plate for safety shoes.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises one or two or more wire meshes of 20 to 100 mesh and a flexible material such as rubber, plastic, woven fabric or non-woven fabric as a laminated layer or the flexible fabric. It is a footstep prevention plate for safety shoes, which is characterized in that a wire mesh is sandwiched between materials.

The wire mesh of 20 mesh is an adhesive, an adhesive or the like which is used for fixing a flexible material such as rubber, plastic, woven cloth or non-woven cloth to the wire mesh when manufacturing the punching prevention plate. It is the minimum mesh required to dig into, and if 100 mesh is larger than this, it will be the upper limit at which when punching a nail or the like, it will enter the hole of the mesh and the effect of punching resistance will be lost.

[0010]

[Action]

 By adopting the footstep prevention plate of the safety shoe of the present invention, one or more wire nets of 20 to 100 mesh and a flexible material such as rubber, plastic, woven cloth or non-woven cloth are laminated or By sandwiching the wire mesh with a flexible material, the punching-out strength is increased without impairing the flexibility of the safety shoe and the adhesion to the outsole and the insole.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 shows a front sectional view of a safety shoe in which the present invention is implemented. The safety shoe 1 is integrally configured of an instep 3, a toecap 5, a backing 7, an insole 9, an outsole 11 and a step-through prevention plate 13.

FIG. 1 shows a schematic configuration diagram of an embodiment of the present invention. In the figure, the punching-out prevention plate 13 is, in the present embodiment, one or two or more wire nets 15 of 20 to 100 mesh, and two flexible material plates (flexible material such as rubber, plastic, woven cloth or non-woven cloth). Sheet 17 and is formed by sandwiching the wire net 15 between two flexible sheets 17. At the time of this lamination, it may be fixed by using an adhesive or a pressure sensitive adhesive.

When unvulcanized rubber is used for vulcanization and fixing at the same time, it is better to apply a heat-curable adhesive for metal and rubber such as Chemlok (trade name) to the wire mesh 15 side. Adhesion becomes strong. As a result, the mesh of the wire netting 15 is prevented from spreading, so that higher punching strength can be obtained.

It should be noted that the number of layers of the wire mesh 15 is increased or decreased to one or two or more according to the required punching strength.

[0016] As described above, safety shoes that do not impair flexibility and have resistance to stepping through are provided, and the metal portion (wire mesh) 15 is a flexible sheet 17 such as rubber, plastic, or woven or nonwoven fabric. Since they are laminated and fixed, the insole 11 and the outsole 13 can be easily adhered to each other, and no floating occurs during use.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in other modes by making appropriate design changes.

[0018]

[Effect of device]

 As is apparent from the above description, the footstep prevention plate of the safety shoe of the present invention is made of one or more wire meshes of 20 to 100 mesh and rubber, plastic, woven cloth or non-woven cloth, etc. By laminating the flexible sheet or sandwiching the wire mesh between the flexible sheets, the problems of the conventional technology can be effectively solved, and the shoe can be attached to the outsole and the insole without sacrificing the flexibility of the safety shoe. The resistance to piercing is increased without impairing the adhesiveness of.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is a front sectional view of a safety shoe according to the present invention.

[Explanation of symbols]

 1 Safety shoes 9 Insole 11 Outsole 13 Stepping prevention plate 15 Wire mesh 17 Flexible sheet

Claims (1)

[Scope of utility model registration request] 1. A laminate of one or more wire nets of 20 to 100 mesh and a flexible material such as rubber, plastic, woven cloth or non-woven fabric, or a wire mesh sandwiched by the flexible materials. A foot protection plate for safety shoes.