Multi-layer combined shoe outsole

Abstract

The utility model belongs to the technical field of shoemaking, and particularly relates to a multi-layer combined shoe outsole which comprises a rubber outsole 1, an elastic layer 4 and midsole cloth 3 which are fixedly connected in sequence, an upper 5 is fixedly connected to the periphery of the midsole cloth 3, and the top of the rubber outsole 1 is fixedly connected with a coating layer 2 formed through injection molding. The coating layer 2 extends upwards to the upper 5 and is opposite to the upper 5, and the elastic layer 4, the insole cloth 3 and the bottom of the upper 5 form a coating and are fixedly connected; a waterproof film 31 is arranged between the elastic layer 4 and the insole cloth 3, and through holes are formed in the forefoot area and the heel area of the insole cloth 3 and the waterproof film 31, so that the top of the elastic layer 4 in the areas is exposed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to shoemaking technical field, and specifically relates to a multilayer combined shoe sole. BACKGROUND

[0002] At present, most of the shoe and boot bottom structures on the market are composed of midsole, outsole and other layers, which are fixed by layer-by-layer bonding, and the upper and bottom are combined by adhesive process. The connection strength of such combined sole is low, and the overall resilience is poor due to the poor elasticity of the midsole cloth, which makes the foot feel uncomfortable during movement. SUMMARY

[0003] To solve the above problems and improve the comfort of shoes and boots, the utility model provides a multilayer combined shoe sole.

[0004] 1. The utility model discloses a multilayer combined shoe sole which is characterized in that a rubber outsole 1 is fixedly connected with an injection-molded cladding layer 2 at the top, the cladding layer 2 extends upward to the upper 5 and is fixedly connected with the elastic layer 4, the midsole cloth 3 and the bottom of the upper 5 to form a cladding; a waterproof film 31 is arranged between the elastic layer 4 and the midsole cloth 3, and through holes are arranged in the forefoot region and the heel region of the midsole cloth 3 and the waterproof film 31 to expose the top of the elastic layer 4 in the region.

[0005] 2. The multilayer combined shoe sole of claim 1 is characterized in that the waterproof film 31 extends outward from the periphery of the midsole cloth 3 and upward to the outer surface of the upper 5, and the extended part is cladded by the cladding layer 2.

[0006] 3. The multilayer combined shoe sole of claim 1 is characterized in that the elastic layer 4 is made of supercritical foaming material.

[0007] The multilayer combined shoe sole of claim 1 is characterized in that the cladding layer 2 is made of polyester polyurethane.

[0008] Compared with the prior art, the connection of the sole, the midsole and the upper in the utility model is fixed by the cladding layer formed by injection molding, which is better connected and has better integrity. In addition, the waterproof film is arranged specifically to prevent the bottom material from entering the shoe cavity during injection of the sole, which affects the appearance of the finished shoe. At the same time, the forefoot and heel parts are hollowed out, and the elastic layer below is not blocked by the midsole cloth, which has better resilience and makes the foot feel more comfortable during movement. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a sectional view of one of the sole solutions;

[0010] Figure 2 is a sectional view of the second sole scheme;

[0011] Figure 3 is a schematic view of the structure of the midsole cloth;

[0012] Figure 4 is a schematic view of the structure of the combination of the midsole cloth, waterproof film and elastic layer;

[0013] Figure 5 is a schematic view of the structure of the rubber outsole;

[0014] Figure 6 is a schematic view of the structure of the injection-molded coating layer on the rubber outsole.

[0015] Among them, the rubber outsole 1, the coating layer 2, the midsole cloth 3, the waterproof film 31, the elastic layer 4, and the upper 5. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] In the present application, unless otherwise explicitly specified and limited, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0018] As shown in the accompanying Figures 1-5 A multi-layer combined shoe sole, comprising a rubber outsole 1, an elastic layer 4, and a midsole cloth 3 fixedly connected in sequence, the midsole cloth 3 is fixedly connected with an upper 5 around the circumference, the rubber outsole 1 is fixedly connected with an injection-molded coating layer 2 at the top, the coating layer 2 extends upward to the upper 5 and forms a coating on the bottom of the elastic layer 4, the midsole cloth 3 and the upper 5 and is fixedly connected; a waterproof film 31 is arranged between the elastic layer 4 and the midsole cloth 3, and through holes are arranged in the forefoot region and the rear heel region of the midsole cloth 3 and the waterproof film 31, so that the top of the elastic layer 4 in the region is exposed.

[0019] Further, as shown in the accompanyingFigure 2 As shown, compared with the scheme in Figure 1 The waterproof film 31 extends from the outer periphery of the insole cloth 3 and extends upward to the outer surface of the upper 5, and the extended part is covered by the covering layer 2.

[0020] In detail, from top to bottom, the first layer: the insole

[0021] The insole is selected from the insole cloth 3, which is a prior art. A material with good air permeability is selected to improve the air permeability in the shoe and can also increase the antibacterial function to play a bacteriostatic role. The back is covered with a waterproof film 31 to prevent the bottom material from entering the shoe cavity during the injection of the outsole, affecting the appearance of the finished shoe. At the same time, the front palm and heel parts are in a hollow form, and the elastic layer 4 below is not blocked by the insole cloth 3, so the resilience is better, and the foot feels more comfortable during exercise.

[0022] The second layer: the elastic layer 4: supercritical foaming material

[0023] Supercritical foaming technology is a thermodynamic method for preparing new synthetic materials. By increasing the density of the fluid medium to above the critical point, the gas such as carbon dioxide is rapidly expanded to realize the porosity treatment, and a porous material with excellent performance is prepared. The size and shape required are cut out; supercritical microcellular foaming as an important way of physical foaming has the characteristics of environmental protection, no "three wastes", no pollution, no residue, recyclable, light and comfortable, shock absorption and shock absorption. The product has excellent mechanical properties, flame retardant properties, weather resistance, good support, and other comprehensive properties. The supercritical fluid pressurizes the foaming of the high polymer material, producing many small bubbles, which can play a role in shock absorption, thereby reducing the impact on the feet during running and walking. In a long time of exercise, it can effectively relieve the burden of the feet during exercise and protect the feet of athletes. Supercritical foaming technology exhibits high efficiency and energy saving characteristics. Compared with traditional physical and chemical methods for preparing materials, this technology does not require high temperature and high pressure conditions, greatly reducing the energy consumption and cost in the preparation process, and meeting the green and environmentally friendly preparation concept.

[0024] The third layer: the covering layer 2, polyester polyurethane

[0025] Polyester polyurethane PESTUR is a kind of high polymer material, which belongs to a type of polyurethane PU. It is formed by polyol and polyisocyanate through condensation reaction, and has excellent mechanical properties and plasticity. This layer is injected by equipment, and the insole is combined with the outsole to make shoes.

[0026] The fourth layer: the rubber outer layer 1

[0027] The rubber outer layer 1 is prepared in advance. Before operating the injection of polyester polyurethane, the rubber outer layer 1 is laid on the mold, and the last with the upper is placed in the mold. The mold is closed, and injection is performed.

[0028] In detail, the production process is as follows:

[0029] S1, making the upper 5 and the insole cloth 3, opening holes in the forefoot and heel areas of the insole cloth 3, and sewing the upper 5 and the insole cloth 3 into a sleeve shape and sleeving the shoe last;

[0030] S2, compounding the waterproof film 31 at the bottom of the insole cloth 3, opening holes in the waterproof film 31 and the insole cloth 3 at the same position and cutting them together, preferably, independently cutting the waterproof film 31 and compounding it with the insole cloth 3 and then opening holes together, and the waterproof film 31 extending from the side of the insole cloth 3 and extending upward;

[0031] S3, cutting the supercritical foaming material into the required size and shape after foaming and molding, and bonding it to the bottom of the waterproof film 31;

[0032] S4, making the rubber outsole 1 and placing it in the groove of the mold, the shape of the groove of the mold being the outer contour shape of the molded shoe body, and fixing the shoe last above the mold;

[0033] S5, injecting polyester polyurethane into the mold to form the coating layer 2, the coating layer 2 covering the bottom of the upper 5, and preferably covering the extended part of the waterproof film 31;

[0034] S6, waiting for molding.

[0035] The above only describes the preferred embodiments of the present application, and it should be pointed out that for those skilled in the art, without departing from the overall concept of the present application, a number of changes and improvements can be made, which should also be considered as the protection range of the present application.

Claims

1. A multi-layer composite shoe outsole, comprising a rubber outsole (1), an elastic layer (4), and a midsole fabric (3) sequentially and fixedly connected, wherein the midsole fabric (3) is circumferentially and fixedly connected to the upper (5), characterized in that: The rubber outsole (1) is fixedly connected with an injection-molded coating layer (2) at the top, the coating layer (2) extends upward to the upper (5) and is fixedly connected with the elastic layer (4), the insole cloth (3) and the bottom of the upper (5); a waterproof film (31) is arranged between the elastic layer (4) and the insole cloth (3), and through holes are arranged in the forefoot region and the rear heel region of the insole cloth (3) and the waterproof film (31), so that the top of the elastic layer (4) in the region is exposed.

2. A multi-layered combination shoe sole as claimed in claim 1, characterized in that: The waterproof film (31) extends outward from the periphery of the insole cloth (3) and upward to the outer surface of the upper (5), and the extended part is covered by the coating layer (2).

3. A multi-layered combination shoe sole as in claim 1, wherein: The material of the elastic layer (4) is supercritical foaming material.

4. A multi-layered combination shoe sole as in claim 1, wherein: The material of the coating layer (2) is polyester type polyurethane.

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