JP3079758U - Shoe sole - Google Patents

Abstract

(57) [Problem] To provide a shoe sole which is lightweight and has high wear resistance. SOLUTION: A back layer 11 and a surface layer 12 are provided. The back layer 11 is made of a lightweight foam material and has a bottom surface 111 and a peripheral surface 112. The surface layer 12 is made of a wear-resistant material,
The bottom surface 111 and the peripheral surface 112 of the back layer 11 are covered and adhered to the back layer 11, and the back layer 11 is covered and adhered by high temperature and pressure inside the mold. Since the back layer 11 is made of a lightweight material and the surface layer 12 is made of a wear-resistant material, it is lightweight and has wear resistance.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a shoe sole.

[0002]

[Prior art]

 Conventional shoe soles are all made of lightweight foam materials or wear-resistant rubber materials. While each of the above two materials has advantages, it also has disadvantages. Foamed materials are lightweight but have poor abrasion resistance. Rubber materials have high abrasion resistance but are heavy. In order to solve the disadvantages of the above two types of materials, both rubber materials and foam materials are used for shoe soles. As shown in FIGS. 3 and 4, the sole has a large sole 8 formed of a rubber material. The large bottom 8 is provided with a concave portion 81 when molded. The midsole 82 is manufactured by cutting a plate-like foam material into the shape of the concave portion 81. The middle sole 82 is adhered to the inside of the concave part 81 of the large sole 8 by a strong adhesive. The lightweight midsole 82 reduces the overall weight of the shoe sole, and the large sole 8 made of rubber improves wear resistance.

[0003]

[Problems to be solved by the invention]

 The shoe sole having the above-described structure has the same thickness on both front and rear because the inner sole 82 is manufactured by cutting a plate-like foam material. Therefore, the concave portion 81 must be formed parallel to the top surface 801 of the large bottom 8. However, in general, since the front part of the large bottom 8 is thinner than the rear part, a light part 802 having a lattice structure is formed in the rear part of the large bottom 8 to increase the height of the concave portion 81, and the weight is reduced. Therefore, the adhesive area between the midsole 82 and the large bottom 8 is reduced, and the adhesive strength between the midsole 82 and the large bottom 8 is reduced. Since the midsole 82 and the large sole 8 are adhered on one side with a strong adhesive, the midsole 82 and the large sole 8 are adhered to form a shoe sole. It is repeatedly twisted, and the middle sole 82 and the large sole 8 are easily separated.

Further, after the large bottom 8 is formed, the middle bottom 82 is attached to the large bottom 8, so that the large bottom 8 needs a predetermined thickness. At this time, the form of the large base 8 with a large strength is supported. Since the large sole 8 has a predetermined thickness, the weight of the sole can be reduced. Accordingly, an object of the present invention is to provide a shoe sole that is lightweight and has high wear resistance.

[0005]

[Means for Solving the Problems]

 According to the sole of the present invention, the sole has a back layer and a surface layer. The backing layer is made of a lightweight foam material and has a bottom surface and a peripheral surface. The surface layer is made of wear-resistant material, covers the bottom surface and peripheral surface of the back layer, is attached to the back layer, and is coated and adhered to the inside of the mold by high temperature and pressure.

[0006] Since the back layer is made of a lightweight material and the surface layer is made of a wear-resistant material, it is lightweight and has wear resistance. Since the bottom and peripheral surfaces of the backing layer are covered with the surface layer and are not exposed to the outside, the backing layer uses various colors of collected material, which can save materials and is effective for environmental protection.

[0007]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the shoe sole 1 according to an embodiment of the present invention has a back layer 11 and a surface layer 12. The back layer 11 is made of a lightweight foam material, EVA foam material, and has a bottom surface 111 and a peripheral surface 112. The surface layer 12 is made of a rubber material, which is a wear-resistant material, and is attached to the molded back layer 11 and then coated and adhered to the inside of the mold by high temperature and pressure.

After the surface layer 12 is coated with an adhesive on rubber and softened by heating, the surface layer 12 is attached to the molded back layer 11, placed inside a mold, and heated. The surface layer 12 covers the bottom surface 111 and the peripheral surface 112 of the back layer 11, and the back layer 11 and the surface layer 12 are integrally adhered by the high temperature and pressure inside the mold. Therefore, no separation occurs due to loss of adhesive effect.

Since the top surface of the sole 1 is adhered to the shoe, the back layer 11 is hidden. For this reason, the back layer 11 is formed by pulverizing the material from which the mixed color EVA is collected and mixing it with a new material to form a foam. For this reason, materials can be saved and it is effective for environmental conservation. Although the back layer 11 is not beautiful because of its various colors, it does not affect the appearance since the back layer 11 covers the surface layer 12.

The sole 1 has a back layer 11 as a model, and the outside of the back layer 11 is covered with a heavy surface layer 12 having abrasion resistance. Therefore, the thickness of the surface layer 12 is smaller, and the weight of the sole is reduced. It can be greatly reduced. Further, the sole has abrasion resistance and non-slip properties, and has dual characteristics of light weight and abrasion resistance.

After being formed, the back layer 11 is attached to the surface layer 12. The surface layer 12 covers the back layer 11 by high temperature and pressure inside the mold, and is integrally adhered to the back layer 11, so that the back layer 11 and the surface layer 12 are integrally bonded. Since the back layer 11 is formed of a light-weight material and the surface layer 12 is formed of a wear-resistant material, the sole 1 has dual characteristics of light weight and wear resistance. Since the bottom surface 111 and the peripheral surface 112 of the back layer 11 are not exposed because they are covered with the surface layer 12, the back layer 11 can be formed by mixing a new material with a collection material of various colors. Therefore, materials can be saved and it is effective for environmental conservation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a shoe sole according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG. 1 taken along the line II-II.

FIG. 3 is a perspective view of a conventional shoe sole.

FIG. 4 is a cross-sectional view of FIG. 3 taken along line IV-IV.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sole 11 Back layer 12 Surface 111 Bottom 112 Peripheral surface

Claims (3)

[Utility model registration claims] 1. A backing layer, comprising: a backing layer; and a backing layer, wherein the backing layer is made of a lightweight foam material, has a bottom surface and a peripheral surface, and wherein the backing layer is made of a wear-resistant material. A sole that covers the bottom surface and the peripheral surface of the base material and is attached to the molded back layer, and the surface layer covers and adheres to the back layer by high temperature and pressure inside a mold. 2. The sole according to claim 1, wherein the back layer is made of an EVA foam material. 3. The shoe sole according to claim 1, wherein the surface layer is made of a rubber material.