JPH0681305U - Shoe sole - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a shoe sole that is lightweight and comfortable to wear, using materials with characteristics suited to each part. [Structure] The main body of the shoe sole has a two-layer structure of a ground plane layer a and a top plane layer b, and the front side tread portion side 1 of the ground plane layer a is a synthetic crepe, and the rear side of the step portion side. Thereafter, 2 is made of hard rubber, and an upper surface layer b made of lightweight rubber is simultaneously vulcanized on the upper surface of the hard rubber so as to be fused and integrated. [Effect] The front part is flexible and fits well on the foot, and the rear part is rigid and supports stable walking. It also flexibly responds to the movement of the foot, is strong against twisting, warps, and is comfortable to wear. The overall weight is reduced and it is easy to walk without feeling tired.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shoe sole.

[0002]

[Prior art]

 Heretofore, this type of sole has been made of a single material, or made by laminating or sewing several materials, or simultaneously vulcanizing two kinds.

[0003]

[Problems to be solved by the device]

 However, the soft material lacked in comfort and stable walking due to twisting, and the hard material had high rigidity and poor return. In addition, when both were vulcanized, there was a problem in terms of weight due to the shape-retaining property resulting in thickening.

The present invention has been made in view of the above problems of the prior art. The purpose of the present invention is to use a material suitable for the characteristics of each part to make it lightweight and comfortable to wear. It is to provide good things.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the technical means of the present invention is that the sole body has a two-layer structure including a ground plane layer and a top plane layer, and the ground plane layer is formed on the front side of the step portion and then on the rear side. It is divided into the step side and the step side, and the stepped side is made of synthetic crepe, the step side is made of hard rubber, and the top layer is made of lightweight rubber. It was formed.

[0006]

[Work]

 With the above technical means, it has impact absorption and rigidity, and the weight is reduced.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. A shoe sole body has a well-known form in this technical field, and the body has a two-layer structure including a ground plane layer a and a top plane layer b. The contact surface layer a is further composed of a front side tread part side 1 and a rear side tread part side 2 and thereafter, and these three parts are respectively made of three types of SBR (styrene) having different properties.・ Butadiene / rubber) A rubber material that is fused and integrated by simultaneous vulcanization.

The ground contact layer a is divided into a front side tread side 1 and a rear side tread side 2 and thereafter, and the tread side 1 is a bottom material rich in non-slip properties and cushioning properties. It is made of synthetic crepe, which is generally known as, and is made of hard rubber with hardness of 80 or more specified in JIS K 6301, which has high rigidity and high shape-retaining property from the foot side to the foot 2 side. The heel portion c is provided on the back of the tread portion side and the rear portion of the rear portion 2 while maintaining a strength sufficient to support a portion called an arch on the back surface.

The upper surface layer b is formed by integrally fusing a layer made of lightweight rubber into a portion corresponding to the whole sole of the upper surface of the grounding surface layer a having the largest total area, thereby reducing the total weight. The ground plane layer a and the top plane layer b have a two-layer structure.

The following is an example of the characteristics of the SBR rubber material and the general rubber in the three parts of the tread portion side 1 of the ground contact layer a, the step portion side 2 and the upper surface layer b. . General rubber Synthetic crepe Hard rubber Lightweight rubber Specific gravity 1.35 1.20 1.38 1.06 300 Modulus 57 39 54 101 Tensile strength 105 130 103 166 Elongation 540 820 480 440 Hardness 77 70 86 73

The rubber material having such characteristics is used as the synthetic crepe 28.5%, the hard rubber 28.5%, and the light weight rubber 43% at the respective portions, that is, on the stepped portion side 1 of the ground contact layer a. It is set so that it is located on the arch side 2 and the upper surface layer b, and is simultaneously vulcanized and integrated so that the total specific gravity becomes about 1.19.

[0012]

[Effect of device]

 In the present invention, the sole body has a two-layer structure, the front side of the grounding surface layer is a synthetic crepe with high flexibility, and the rear side of the stepping side is rigid. It is made of hard rubber, and an upper surface layer made of lightweight rubber with a small specific gravity is fused and integrated on the upper surface, so the flexibility of the front part is good for foot familiarity and the rigidity of the rear part supports stable walking, It is flexible and adapts to the movements of the body while resisting twisting, has good warpage, is highly shock-absorbing, and is comfortable to wear. .

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a shoe sole of the present invention with a part cut away.

FIG. 2 is a sectional view.

[Explanation of symbols]

a: ground plane layer, b: top layer, 1: tread side, 2: tread side

Claims (2)

[Scope of utility model registration request] 1. The sole body has a two-layer structure including a ground plane and a top plane, and the ground plane is divided into a front side tread side and a rear side tread side. , A shoe sole in which the stepped portion side is made of synthetic crepe, the stepped portion side and thereafter are made of hard rubber, and the upper surface layer is made of lightweight rubber. 2. A shoe sole formed by fusing and integrating rubbers on the side of the stepped portion, on the side of the stepped portion and on the upper surface layer by using three kinds of SBR (styrene-butadiene rubber) rubber materials having different properties, respectively.