A thin, durable shoe sole

Abstract

The utility model relates to a kind of thin bottom wear-resisting shoe sole, including flexible upper layer, carbon fiber middle layer, wear-resistant bottom layer and wear-resistant projection, flexible upper layer, carbon fiber middle layer and wear-resistant bottom layer are sequentially bonded from top to bottom Settings, multiple through holes are formed on the lower surface of wear-resistant bottom layer, connecting hole to through hole is formed on carbon fiber middle layer, wear-resistant projection upper surface has connecting column, connecting column is screwed into connecting hole and wear-resistant projection upper surface is attached wear-resistant bottom layer, the sole of the scheme is three-layer composite structure, by flexible upper layer, carbon fiber middle layer and wear-resistant bottom layer, flexible upper layer provides good foot feeling, carbon fiber middle layer provides foot support force, replaceable wear-resistant projection design is set in wear-resistant layer bottom, realizes the superhigh wear resistance of shoe sole key position.

Description

Technical Field

[0001] This utility model belongs to the field of footwear technology, specifically relating to a thin-soled, wear-resistant shoe sole. Background Technology

[0002] Currently, as a crucial component of footwear, the sole's structural design directly impacts wearing comfort, athletic performance, and lifespan. Most soles on the market today utilize a single material or a simple multi-layered composite structure. While these can provide some basic functions such as cushioning, support, and abrasion resistance, they still exhibit some inherent limitations.

[0003] On the one hand, traditional thin-soled shoes, in pursuit of lightweight design and a close-fitting feel, are generally thinner overall. This often results in insufficient abrasion resistance, especially in key pressure areas like the forefoot and heel, where they wear down quickly due to prolonged friction, affecting the overall lifespan of the sole and wasting resources. On the other hand, existing soles are typically one-piece structures. When localized wear becomes severe, it often requires replacing the entire shoe or undergoing complex professional repairs, leading to high maintenance costs and inconvenience. Furthermore, the functions of each layer in conventional composite soles are relatively fixed, making it difficult to achieve a balance between high-strength support and localized ultra-high abrasion resistance while maintaining a lightweight, thin sole.

[0004] In view of this, this solution was developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a thin-soled, wear-resistant shoe sole that is wear-resistant.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a thin-soled abrasion-resistant shoe sole, comprising a flexible upper layer, a carbon fiber middle layer, an abrasion-resistant bottom layer, and abrasion-resistant protrusions. The flexible upper layer, the carbon fiber middle layer, and the abrasion-resistant bottom layer are bonded together sequentially from top to bottom. The lower surface of the abrasion-resistant bottom layer has multiple through holes, and the carbon fiber middle layer has connecting holes for connecting the through holes. The upper surface of the abrasion-resistant protrusions has connecting posts, and the connecting posts are screwed into the connecting holes, with the upper surface of the abrasion-resistant protrusions adhering to the abrasion-resistant bottom layer.

[0007] Furthermore, the flexible upper layer, the carbon fiber intermediate layer, and the wear-resistant lower layer have the same shape. The carbon fiber intermediate layer has an upwardly extending first arc-shaped surrounding plate on both sides and the front section of the corresponding area of ​​the foot. The carbon fiber intermediate layer has an upwardly extending second arc-shaped surrounding plate on both sides and the rear end of the corresponding area of ​​the heel.

[0008] Furthermore, the wear-resistant protrusions are located in the corresponding areas of the forefoot and heel of the carbon fiber intermediate layer.

[0009] Furthermore, a downwardly extending connecting ring is formed at the lower edge of the connecting hole of the carbon fiber intermediate layer, and internal threads are formed in the inner hole of the connecting ring and the connecting hole, while external threads are formed on the surface of the connecting post.

[0010] Furthermore, the lower opening of the through hole is formed with a constriction, and the diameter of the constriction is the same as the diameter of the connecting post.

[0011] Furthermore, the thickness of the flexible upper layer is 2-3 mm, the thickness of the carbon fiber intermediate layer is 0.5-1.5 mm, and the thickness of the wear-resistant bottom layer is 4-7 mm.

[0012] Furthermore, the flexible upper layer is made of TPU or EVA material.

[0013] Furthermore, the wear-resistant bottom layer is made of TPU material or rubber.

[0014] Furthermore, the wear-resistant protrusions are made of carbon-reinforced rubber.

[0015] Furthermore, a groove is formed at the bottom of the wear-resistant protrusion.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention features a three-layer composite structure consisting of a flexible upper layer, a carbon fiber middle layer, and a wear-resistant lower layer. The flexible upper layer provides a good feel underfoot, the carbon fiber middle layer provides foot support, and the replaceable wear-resistant protrusions at the bottom of the wear-resistant layer achieve ultra-high wear resistance in key parts of the sole. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a thin-soled, wear-resistant shoe sole according to the present invention; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a three-dimensional structural diagram of the wear-resistant protrusion with a groove in this utility model.

[0018] The markings in the diagram are: 1. Flexible upper layer; 2. Carbon fiber middle layer; 21. Connecting ring; 22. Connecting hole; 3. Wear-resistant bottom layer; 4. Wear-resistant protrusion; 41. Connecting post; 42. Groove; 5. First arc-shaped surrounding plate; 6. Second arc-shaped surrounding plate. Detailed Implementation

[0019] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0020] like Figures 1-4As shown, this utility model provides a thin-soled, wear-resistant shoe sole, the main body of which is a three-layer composite structure, including a flexible upper layer 1, a carbon fiber middle layer 2, and a wear-resistant bottom layer 3, which are pressed together from top to bottom by a high-strength adhesive, and the contours of each layer correspond to each other.

[0021] The flexible upper layer 1 has a thickness of 2-3mm, which is 2.5mm in this embodiment. It is made of TPU (thermoplastic polyurethane) material, which is soft and has good resilience. It directly contacts the sole of the foot to provide a comfortable cushioning function.

[0022] The carbon fiber interlayer 2 has a thickness of 0.5-1.5mm, and in this embodiment, it is 1.0mm. It is made from T700 grade carbon fiber prepreg through a molding process, providing the core structural rigidity and torsional resistance of the sole, which is key to achieving lightweight yet high-strength support. In the area corresponding to the ball of the foot and heel of this layer, multiple threaded connection holes 22 are pre-set. Furthermore, a downwardly extending connecting ring 21 is formed at the lower edge of the connection holes 22 in the carbon fiber interlayer 2. Internal threads are formed within the inner hole of the connecting ring 21 and the connection hole 22. The wear-resistant bottom layer 3 has a thickness of 4-7mm, and in this embodiment, it is 5.5mm, made of highly wear-resistant rubber material. Multiple through holes are formed on its lower surface at positions corresponding to the connection holes 22 of the carbon fiber intermediate layer 2. A constriction is formed at the lower opening of each through hole.

[0023] Preferably, the flexible upper layer 1, the carbon fiber intermediate layer 2, and the wear-resistant lower layer 3 have the same shape. Taking the carbon fiber intermediate layer 2 as an example, a first arc-shaped surrounding plate 5 extending upward is integrally formed on both sides and the front section of the area corresponding to the foot of the carbon fiber intermediate layer 2; a second arc-shaped surrounding plate 6 extending upward is integrally formed on both sides and the rear end of the area corresponding to the heel. After the sole is formed, these two arc-shaped surrounding plates can effectively wrap around both sides of the foot, significantly enhancing lateral stability during exercise.

[0024] The sole also includes multiple independent, replaceable abrasion-resistant protrusions 4, made of carbon-reinforced rubber, concentrated in high-wear areas such as the forefoot and heel. Each abrasion-resistant protrusion 4 has a cylindrical connecting post 41 at its center on its upper surface. The surface of the connecting post 41 is machined with external threads that match the inner holes of the connecting holes 22 and connecting rings 21 in the carbon fiber interlayer 2. During assembly, the connecting post 41 of the abrasion-resistant protrusion 4 is passed through the through-hole of the abrasion-resistant bottom layer 3 and screwed into the inner hole of the connecting ring 21 and the connecting hole 22 of the carbon fiber interlayer 2. The constricted end of the through-hole forms a tight fit with the connecting post 41, serving a positioning and dust-proof function. After tightening, the upper surface of the abrasion-resistant protrusion 4 is completely flush with the lower surface of the abrasion-resistant bottom layer 3.

[0025] To further enhance the anti-slip effect, a groove 42 can be made at the bottom of the wear-resistant protrusion 4.

[0026] This invention achieves ultra-high wear resistance in key parts of the sole through the design of replaceable wear-resistant protrusions 4. It provides excellent support and stability in an ultra-thin thickness through the carbon fiber intermediate layer 2 and the arc-shaped surrounding plate structure. Each layer has a clear function and a significant synergistic effect, effectively solving the industry problems of short life and poor stability of traditional thin-soled shoes.

[0027] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A thin-soled, wear-resistant shoe sole, characterized in that: It includes a flexible upper layer, a carbon fiber intermediate layer, a wear-resistant bottom layer, and wear-resistant protrusions. The flexible upper layer, the carbon fiber intermediate layer, and the wear-resistant bottom layer are bonded together in sequence from top to bottom. The lower surface of the wear-resistant bottom layer has multiple through holes. The carbon fiber intermediate layer has connecting holes for connecting the through holes. The upper surface of the wear-resistant protrusions has connecting posts. The connecting posts are screwed into the connecting holes and the upper surface of the wear-resistant protrusions is attached to the wear-resistant bottom layer.

2. The thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: The flexible upper layer, carbon fiber middle layer, and wear-resistant bottom layer have the same shape. The carbon fiber middle layer has an upwardly extending first arc-shaped surrounding plate on both sides and the front section of the corresponding area of ​​the foot. The carbon fiber middle layer has an upwardly extending second arc-shaped surrounding plate on both sides and the rear end of the corresponding area of ​​the heel.

3. The thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: The wear-resistant protrusions are located in the corresponding areas of the forefoot and heel of the carbon fiber intermediate layer.

4. The thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: A downwardly extending connecting ring is formed at the lower edge of the connecting hole of the carbon fiber intermediate layer. An internal thread is formed in the inner hole of the connecting ring and the connecting hole, and an external thread is formed on the surface of the connecting post.

5. A thin-soled, wear-resistant shoe sole according to claim 4, characterized in that: The lower opening of the through hole has a constriction, and the diameter of the constriction is the same as the diameter of the connecting post.

6. A thin-soled, wear-resistant shoe sole according to claim 4, characterized in that: The thickness of the flexible upper layer is 2-3 mm, the thickness of the carbon fiber intermediate layer is 0.5-1.5 mm, and the thickness of the wear-resistant bottom layer is 4-7 mm.

7. A thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: The flexible upper layer is made of TPU or EVA material.

8. A thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: The wear-resistant bottom layer is made of TPU material or rubber.

9. A thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: The wear-resistant protrusions are made of carbon-reinforced rubber.

10. A thin-soled, wear-resistant shoe sole according to claim 1, characterized in that: The bottom of the wear-resistant protrusion has a groove.

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