A cushioning midsole and sole

Abstract

The utility model discloses a kind of shock-absorbing midsoles, it includes midsole body and the shock-absorbing body of several wrapping in midsole body, several shock-absorbing body interval distribution, the material quality of midsole body and shock-absorbing body is all foamed material, the hardness of shock-absorbing body is less than the hardness of midsole body.The utility model distributes shock-absorbing body in midsole body, by shock-absorbing body force dispersion effect, comfortable soft elastic foot feeling and physical shock-absorbing effect can be brought, shock-absorbing body is wrapped in the inside of midsole body, also make the support performance of shock-absorbing midsole same with conventional shoe sole.The utility model further discloses a kind of shoe sole, with good shock-absorbing performance, support performance and comfortable foot feeling.

Description

Technical Field

[0001] This utility model relates to the field of footwear technology, and in particular to a shock-absorbing midsole and outsole. Background Technology

[0002] Cushioning technology is one of the core technologies in the design and manufacturing of athletic shoes. Through specific materials and structural designs, it effectively absorbs and disperses the impact force generated during running or exercise, thereby protecting the athlete's joints and bones and improving athletic efficiency and comfort. Currently, there are two main types of cushioning technology on the market: material cushioning and structural cushioning. Material cushioning utilizes the deformation of the material itself to achieve a cushioning effect. Common materials include ETPU foam, PEBAX foam, EVA, and PU. These materials typically have a certain degree of elasticity and compressibility, and can absorb and disperse impact force when subjected to pressure, providing a cushioning effect. Structural cushioning absorbs impact energy through structural deformation, thereby achieving a cushioning effect; examples include wave-shaped and arch-shaped cushioning structures.

[0003] Material-cushioned running shoes are characterized by their lightweight nature, excellent cushioning and rebound, and comfortable feel, making them the mainstream cushioning technology currently. However, the development of cushioning materials is gradually reaching a bottleneck, and cushioning materials that solely pursue a comfortable feel have certain shortcomings in terms of support and stability. Structural cushioning offers superior support and stability compared to material cushioning, but structural cushioning running shoes sacrifice some lightweight and softness, resulting in a significantly different feel compared to material cushioning. They tend to be heavier overall and have a stiffer feel. Utility Model Content

[0004] The purpose of this invention is to provide a comfortable and stable cushioning midsole and sole.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: In a first aspect, this utility model provides a shock-absorbing midsole, which includes a midsole body and a plurality of shock-absorbing bodies wrapped within the midsole body. The plurality of shock-absorbing bodies are spaced apart. The materials of the midsole body and the shock-absorbing bodies are both foamed materials, and the hardness of the shock-absorbing bodies is less than the hardness of the midsole body.

[0006] Preferably, several of the aforementioned shock absorbers are distributed at intervals along the inner and outer edges of the midsole body.

[0007] Preferably, the portion of the midsole body corresponding to the forefoot is called the forefoot portion, the portion corresponding to the midfoot is called the midfoot portion, and the portion corresponding to the heel is called the heel portion. The cushioning elements are distributed in the forefoot portion and the heel portion, with at least two cushioning elements on each of the inner and outer sides of the forefoot portion and at least two cushioning elements on each of the inner and outer sides of the heel portion.

[0008] Preferably, the size of the cushioning element located in the forefoot portion is smaller than the size of the cushioning element located in the heel portion.

[0009] Preferably, the shock absorber is spherical or hemispherical in shape, with the diameter of the shock absorber located in the forefoot portion being 0.5 to 1.5 cm and the diameter of the shock absorber located in the heel portion being 3 to 3.5 cm.

[0010] Preferably, the lower surface of the midsole body has an upwardly recessed groove corresponding to the position of the shock absorber.

[0011] Preferably, the Shore hardness C value of the shock absorber is 28-32C, and the Shore hardness C value of the midsole body is 38-45C.

[0012] Preferably, the specific gravity of the shock absorber is 0.06 g / cm³. 3 The specific gravity of the material of the midsole body is 0.10–0.16 g / cm³. 3 .

[0013] Preferably, the shape of the damping body is one of sphere, hemisphere, ellipsoid, and arch.

[0014] Secondly, this utility model provides a shoe sole, which includes the cushioning midsole of this utility model and an outsole connected to the lower surface of the cushioning midsole.

[0015] By adopting the above technical solution, the beneficial effects of this utility model are as follows: (1) The present invention distributes shock absorbers in the midsole body. The shock absorbers have a force dispersion effect, which can bring a comfortable and soft feel and physical shock absorption effect. The shock absorbers are wrapped inside the midsole body, which also makes the support performance of the shock-absorbing midsole no different from that of conventional shoe soles. The shock absorbers are distributed in the stress zones on the inner and outer sides of the midsole body at intervals, which makes the force dispersion effect even better.

[0016] (2) The sole of this utility model includes the shock-absorbing midsole of this utility model, which has good shock absorption performance, support performance and comfortable foot feel. Attached Figure Description

[0017] Figure 1 This is a top-view schematic diagram of the shock-absorbing midsole of a preferred embodiment of the present invention (the shock-absorbing body is spherical).

[0018] Figure 2 for Figure 1 Schematic diagram of sectional view AA.

[0019] Figure 3 This is a cross-sectional schematic diagram of the shock-absorbing insole of a preferred embodiment of the present invention (the shock-absorbing body is hemispherical).

[0020] Figure 4 This is a cross-sectional schematic diagram of the shock-absorbing insole of a preferred embodiment of the present invention (the shock-absorbing body is ellipsoidal).

[0021] Figure 5 This is a cross-sectional schematic diagram of the shock-absorbing insole of a preferred embodiment of the present invention (the shock-absorbing body is arched).

[0022] The components are: 1. Midsole body; 11. Forefoot; 12. Midfoot; 13. Heel; 14. Groove; 2. Cushioning body. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Combination Figure 1 and Figure 2 This invention provides a shock-absorbing midsole, comprising a midsole body 1 and a plurality of shock-absorbing elements 2. The midsole body 1 is divided into three parts: a forefoot portion 11 corresponding to the forefoot, a midfoot portion 12 corresponding to the midfoot, a heel portion 13 corresponding to the heel, an outer side corresponding to the lateral side of the foot, and an inner side corresponding to the medial side of the foot. Each shock-absorbing element 2 is enclosed within the midsole body 1. Both the shock-absorbing elements 2 and the midsole body 1 are made of foam material, and the hardness of the shock-absorbing elements 2 is less than that of the midsole body 1.

[0025] This invention distributes the cushioning element 2 within the midsole body 1. Through the force dispersion effect of the cushioning element 2, it provides a comfortable, soft, and responsive feel, as well as physical cushioning. Furthermore, since the cushioning element 2 is encased within the midsole body 1, the support performance of the cushioned midsole is no different from that of a conventional shoe sole. Even better, distributing the cushioning element in the high-stress areas on the inner and outer sides of the midsole body 1, and spaced along the edges of the inner and outer sides, results in a more even and uniform force dispersion, and a better soft, responsive feel and balance.

[0026] The forefoot primarily bears the pushing and pushing forces during walking and running, resulting in relatively high pressure during exercise. The heel primarily bears the pulling forces, also experiencing relatively high pressure during walking and running, especially during acceleration and jumping. Therefore, in some embodiments of this invention, the cushioning bodies 2 are distributed in the forefoot portion 11 and the heel portion 13 of the midsole body 1. At least two cushioning bodies 2 are provided on each of the inner and outer sides of the forefoot portion 11, dividing the cushioning bodies 2 within the forefoot portion 11 into two parts: one part is distributed at intervals along the inner edge of the forefoot portion 11, and the other part is distributed at intervals along the outer edge of the forefoot portion 11. Similarly, at least two cushioning bodies 2 are provided on each of the inner and outer sides of the heel portion 13, also dividing the cushioning bodies 2 within the heel portion 13 into two parts: one part is distributed at intervals along the inner edge of the heel portion 13, and the other part is distributed at intervals along the outer edge of the heel portion 13.

[0027] like Figures 2-5 As shown, the shape of the shock absorber 2 of this invention can be spherical, hemispherical, ellipsoidal, or arched. These arc-shaped structures can effectively disperse and absorb external impact forces, improving the shock absorption performance of the shock-absorbing midsole. The shock absorber 2 is preferably spherical, and the curved spherical surface of the spherical shock absorber 2 can effectively disperse and resist external pressure, exhibiting excellent force dispersion effect.

[0028] In some embodiments of this invention, the size of the cushioning body 2 located in the forefoot portion 11 is smaller than the size of the cushioning body 2 located in the heel portion 13. Firstly, because existing athletic shoe designs generally incorporate a slope difference between the forefoot portion 11 and the heel portion 13—that is, the thickness of the forefoot portion 11 is less than that of the heel portion 13—this improves the efficiency of landing and pushing off the ground during running. For example, in a forefoot landing running posture, the transition from the forefoot portion 11 to the heel portion 13 is smoother and more continuous due to the slope difference between them. This design results in a thickness difference between the forefoot portion 11 and the heel portion 13; therefore, in terms of thickness, the size of the cushioning body 2 in the forefoot portion 11 can be designed to be smaller than that in the heel portion 13. Secondly, in terms of functionality, when the forefoot lands, the force-bearing area is small, and the force of the whole body is concentrated on one point. Since the hardness of the cushioning body 2 is less than that of the midsole body 1, if the size of the cushioning body is too large, it will result in the overall hardness of the forefoot being too soft. When landing on the forefoot, it is easy to twist the ankle. Furthermore, when landing, the forefoot part 11 is subjected to excessive compression deformation, resulting in insufficient rebound and reduced reaction force, which leads to a decrease in exercise efficiency.

[0029] When the shock absorber 2 is spherical or hemispherical, the diameter of the shock absorber 2 located in the forefoot 11 is preferably 0.5 to 1.5 cm, and the diameter of the shock absorber 2 located in the heel 13 is preferably 3 to 3.5 cm.

[0030] In some embodiments of this invention, the Shore A hardness C value of the shock absorber 2 is 28-32C, preferably 30C, and the Shore A hardness C value of the midsole body 1 is 38-45C. The specific gravity of the material of the shock absorber 2 is 0.06 g / cm³. 3 The specific gravity of the material of the midsole body 1 is 0.10~0.16g / cm³. 3 The midsole body 1 and the cushioning element 2 have different densities and uniform hardness. The midsole body 1 has a comfortable and supportive firmness, directly wrapping around the entire sole of the foot to prevent ankle sprains caused by a too-soft sole during exercise. The cushioning element 2, built into the midsole body 1, is softer than the midsole body 1 and has high elasticity (≥75%), further enhancing the feel.

[0031] The cushioning midsole of this invention can be made of any foaming material available on the market, preferably EVA, PEBAX, polyester aliphatic TPU, polyether aliphatic TPU, TPEE foaming material or their modified foaming materials.

[0032] In some embodiments of this invention, an upwardly recessed groove 14 is formed on the lower surface of the midsole body 1 corresponding to the position of the shock absorber 2. The groove 14 is located below the shock absorber 2 and has an arched structure, mainly used for force distribution and stress relief.

[0033] This invention also provides a shoe sole, comprising a cushioning midsole and an outsole connected to the lower surface of the cushioning midsole. This shoe sole offers excellent cushioning, support, and a comfortable feel.

[0034] All parts of the sole not covered herein are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0035] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims are within the scope of protection of the present invention.

Claims

1. A shock-absorbing midsole, characterized in that, include: The midsole body (1) and a plurality of cushioning bodies (2) enclosed within the midsole body (1); the plurality of cushioning bodies (2) are spaced apart; the midsole body (1) and the cushioning bodies (2) are both made of foam material, and the hardness of the cushioning bodies (2) is less than that of the midsole body (1).

2. The shock-absorbing midsole according to claim 1, characterized in that, Several of the aforementioned shock absorbers (2) are distributed at intervals along the inner and outer edges of the midsole body (1).

3. The shock-absorbing midsole according to claim 2, characterized in that, The part of the midsole body (1) corresponding to the forefoot is the forefoot part (11), the part corresponding to the midfoot is the midfoot part (12), and the part corresponding to the heel is the heel part (13). The shock absorbers (2) are distributed on the forefoot (11) and heel (13). At least two shock absorbers (2) are provided on the inner and outer sides of the forefoot (11) and at least two shock absorbers (2) are provided on the inner and outer sides of the heel (13).

4. The shock-absorbing midsole according to claim 3, characterized in that, The size of the shock absorber (2) located in the forefoot (11) is smaller than the size of the shock absorber (2) located in the heel (13).

5. The shock-absorbing midsole according to claim 4, characterized in that, The shock absorber (2) is spherical or hemispherical in shape. The diameter of the shock absorber (2) located in the forefoot (11) is 0.5 to 1.5 cm, and the diameter of the shock absorber (2) located in the heel (13) is 3 to 3.5 cm.

6. The cushioning midsole according to claim 1, characterized in that, The shape of the shock absorber (2) is one of sphere, hemisphere, ellipsoid and arch.

7. The cushioning midsole according to claim 1, characterized in that, The lower surface of the midsole body (1) has an upwardly recessed groove (14) corresponding to the position of the shock absorber (2).

8. The cushioning midsole according to any one of claims 1 to 7, characterized in that, The Shore hardness C value of the shock absorber (2) is 28-32C, and the Shore hardness C value of the midsole body (1) is 38-45C.

9. The shock-absorbing midsole according to claim 8, characterized in that, The specific gravity of the material of the shock absorber (2) is 0.06 g / cm³. 3 The specific gravity of the material of the midsole body (1) is 0.10-0.16 g / cm³. 3 .

10. A shoe sole, characterized in that, Includes the cushioning midsole as described in any one of claims 1 to 9 and the outsole connected to the lower surface of the cushioning midsole.

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