Lightweight foamed rubber for shoe material

Abstract

The utility model discloses a kind of light foamed rubber for shoe material, including wear-resistant rubber and foamed rubber, wear-resistant rubber is formed shoe sole by high-temperature injection molding, shoe sole is peripherally provided with rim, shoe sole middle is equipped with filling groove, foamed rubber is formed by chemical bonding and is embedded in filling groove, foamed rubber cloth is equipped with several perforations and front palm and rear heel are equipped with notch, notch is embedded with stabilizing piece, the bottom of shoe sole and rim are equipped with wear-resistant particles.The utility model is through the rubber for shoe material and adopts two kinds of rubber double-density settings, first, wear-resistant rubber is set on the bottom of shoe sole and rim, to form a protective layer, so that shoe sole has wear-resistant characteristics, middle section of shoe sole is through chemical bonding foamed rubber, with the characteristics of light weight, so that shoe sole is wear-resistant and light;Through the front palm and rear heel of foamed rubber setting stabilizing piece provides resilience and stable support force;Foamed rubber cloth is equipped with perforation, can reduce the weight of shoe sole, also can increase breathability, more suitable for wearing.

Description

Technical Field

[0001] This utility model relates to the field of rubber technology for footwear, and more specifically to a lightweight foamed rubber for footwear materials. Background Technology

[0002] With economic development and the continuous improvement of people's living standards, people's requirements for shoe soles are becoming increasingly diversified, and various types of shoe soles have emerged. Foamed rubber soles are soles formed by secondary foaming of EVA, which we call MODE soles. Foamed rubber soles are made from closed-cell or open-cell foamed rubber materials made from natural or synthetic rubber. They possess properties such as light weight, good tear resistance, corrosion resistance, and electrical insulation, and are widely used in footwear and other fields. However, in actual use, although foamed rubber is lighter, it has poor abrasion resistance. Most foamed rubber soles on the market are made entirely of the same foamed rubber material, making them prone to wear and presenting problems in terms of abrasion resistance and cushioning. Therefore, rubber soles have certain limitations and require structural improvements. To address these issues, the inventors have proposed a lightweight foamed rubber for shoe materials. By setting a double-layer, double-density rubber structure, the foamed rubber sole not only achieves lightweight but also possesses good abrasion resistance, making it more suitable for shoe sole production and possessing good commercial prospects.

[0003] To improve the abrasion resistance of rubber shoe soles, making them not only lightweight but also durable and comfortable to wear, Chinese patent (authorization announcement number: CN215819996U) discloses a foamed rubber shoe sole. This utility model includes a sole body comprising, from top to bottom, a breathable top layer, an elastic middle layer, and an abrasion-resistant bottom layer. The abrasion-resistant bottom layer has several abrasion-resistant ridges and anti-slip grooves on the side away from the elastic middle layer. Two cushioning grooves are formed at the top of the abrasion-resistant bottom layer, and two cushioning airbags are provided at the bottom of the elastic middle layer, with the outer surface of the cushioning airbags abutting against the inner wall surface of the cushioning grooves. This utility model enhances the abrasion resistance of the sole body, effectively cushions and reduces shock generated during use, and allows for ventilation and airflow inside the shoe, improving comfort.

[0004] This solution still has some shortcomings in application. Although foamed rubber is lightweight, its abrasion resistance is generally low. In addition to the sole needing to be abrasion-resistant, the edges of the shoe are also prone to wear and tear, resulting in a short lifespan. This is not suitable for wearing in some scenarios, especially outdoor activities. Furthermore, foamed rubber is relatively lightweight and soft, so it does not provide sufficient stable support for the foot, making it easy to sprain the ankle during running and jumping. Therefore, it is not suitable for wearing during sports. So, the structure of the foamed rubber used in the shoe material needs to be improved so that it can protect the sole in all directions, prevent wear and tear, and have a shock-absorbing function to provide foot support, making it safe and comfortable to wear. Utility Model Content

[0005] This utility model discloses a lightweight foamed rubber for shoe materials, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A lightweight foamed rubber for footwear includes abrasion-resistant rubber and foamed rubber. The abrasion-resistant rubber is injection molded into a sole at high temperature. The sole has a perimeter around its perimeter and a filling groove in the middle. The foamed rubber is chemically bonded and embedded in the filling groove. The foamed rubber has several perforations and upward-opening notches at the forefoot and heel. Stabilizing plates are embedded in these notches. Several abrasion-resistant particles are evenly distributed on the bottom and perimeter of the sole.

[0008] Furthermore, the perimeter and the sole are integrally molded.

[0009] Furthermore, the depth of the filling groove is 3cm and the edge thickness is 5mm.

[0010] Furthermore, the density of the wear-resistant rubber is 1.15-1.35 g / cm³, and the density of the foamed rubber is 0.65-0.85 g / cm³.

[0011] Furthermore, the stabilizer is made of soft silicone and has a thickness of 1.5cm.

[0012] Furthermore, the foamed rubber has an open cell ratio of ≥60% and a compression set of <15%.

[0013] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. This utility model uses two types of rubber with dual densities in the shoe material. First, wear-resistant rubber is set at the bottom and perimeter of the sole to form a protective layer, giving the sole wear-resistant and hydrolysis-resistant properties. Then, foamed rubber is chemically bonded to the inner middle of the wear-resistant rubber. The foamed rubber has an open cell rate of ≥60% and a compression deformation rate of <15%, which has lightweight properties. This makes the sole not only wear-resistant but also lightweight, making it both wear-resistant and easy to run, jump and walk on.

[0015] 2. This utility model uses foamed rubber to set stabilizing plates on the forefoot and heel. The stabilizing plates are made of soft silicone and are 1.5cm thick. For the structure where the forefoot and heel are the main stress points when jumping, the stabilizing plates can provide rebound force and stable support, avoiding ankle sprains. It is very practical.

[0016] 3. This utility model, by incorporating several perforations into the foamed rubber, not only further reduces the weight of the sole but also increases its breathability. When used in conjunction with an insole, the sole effectively enhances the softness and breathability of the shoe material, making it more suitable for wear. This utility model features a novel structure and ingenious design, possessing excellent wear resistance, hydrolysis resistance, and also good resilience and breathability, making it suitable for use as a shoe material and sole. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a front view structural diagram of the present invention.

[0019] Figure 3 This is a bottom view of the structure of this utility model. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3 As shown, a lightweight foamed rubber for footwear includes abrasion-resistant rubber 1 and foamed rubber 2. The abrasion-resistant rubber 1 is injection molded into a shoe sole 11 at high temperature. The shoe sole 11 has a perimeter 3 around its perimeter and a filling groove 4 in the middle of the shoe sole. The foamed rubber 2 is chemically bonded and embedded in the filling groove 4. The foamed rubber 2 has a plurality of perforations 5 and upward-opening notches at the forefoot and heel. A stabilizing piece 6 is embedded in the notch. A plurality of abrasion-resistant particles 7 are evenly distributed on the bottom and perimeter of the shoe sole.

[0022] Furthermore, the perimeter 3 and the sole 11 are integrally formed.

[0023] Furthermore, the depth of the filling groove 4 is 3cm, and the edge thickness is 5mm.

[0024] Furthermore, the density of the wear-resistant rubber 1 is 1.15-1.35 g / cm³, and the density of the foamed rubber 2 is 0.65-0.85 g / cm³.

[0025] Furthermore, the stabilizer 6 is made of soft silicone material and has a thickness of 1.5cm.

[0026] Furthermore, the foamed rubber 2 has an open porosity of ≥60% and a compression set of <15%.

[0027] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0028] 1. This utility model uses two types of rubber with dual densities in the shoe material. First, wear-resistant rubber is set at the bottom and perimeter of the sole to form a protective layer, giving the sole wear-resistant and hydrolysis-resistant properties. Then, foamed rubber is chemically bonded to the inner middle of the wear-resistant rubber. The foamed rubber has an open cell rate of ≥60% and a compression deformation rate of <15%, which has lightweight properties. This makes the sole not only wear-resistant but also lightweight, making it both wear-resistant and easy to run, jump and walk on.

[0029] 2. This utility model uses foamed rubber to set stabilizing plates on the forefoot and heel. The stabilizing plates are made of soft silicone and are 1.5cm thick. For the structure where the forefoot and heel are the main stress points when jumping, the stabilizing plates can provide rebound force and stable support, avoiding ankle sprains. It is very practical.

[0030] 3. This utility model, by incorporating several perforations into the foamed rubber, not only further reduces the weight of the sole but also increases its breathability. When used in conjunction with an insole, the sole effectively enhances the softness and breathability of the shoe material, making it more suitable for wear. This utility model features a novel structure and ingenious design, possessing excellent wear resistance, hydrolysis resistance, and also good resilience and breathability, making it suitable for use as a shoe material and sole.

[0031] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A lightweight foamed rubber for shoe materials, characterized in that: The shoe includes abrasion-resistant rubber and foamed rubber. The abrasion-resistant rubber is injection molded into a sole at high temperature. The sole has a perimeter around its perimeter and a filling groove in the middle. The foamed rubber is chemically bonded and embedded in the filling groove. The foamed rubber has several perforations and upward-opening notches in the forefoot and heel. Stabilizing plates are embedded in these notches. Several abrasion-resistant particles are evenly distributed on the bottom and perimeter of the sole.

2. The lightweight foamed rubber for shoe materials according to claim 1, characterized in that: The perimeter and the sole are integrally molded.

3. The lightweight foamed rubber for shoe materials according to claim 1, characterized in that: The filling groove has a depth of 3cm and an edge thickness of 5mm.

4. The lightweight foamed rubber for shoe materials according to claim 1, characterized in that: The wear-resistant rubber has a density of 1.15-1.35 g / cm³, and the foamed rubber has a density of 0.65-0.85 g / cm³.

5. The lightweight foamed rubber for shoe materials according to claim 1, characterized in that: The stabilizer is made of soft silicone and has a thickness of 1.5cm.

6. The lightweight foamed rubber for shoe materials according to claim 1, characterized in that: The foamed rubber has an open cell ratio of ≥60% and a compression set of <15%.

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