Shoe sole

Abstract

A shoe sole comprises a shoe sole body and is characterized in that the shoe sole body comprises a front section containing a front sole area and a rear section containing a rear heel area, the hardness of the front section is smaller than that of the rear section, the shoe sole body is provided with a supporting plate extending from the front section to the rear section, and the hardness of the supporting plate is larger than that of the rear section. Due to the fact that the hardness of the front section where the front sole area is located is small, the front sole can be more naturally bent and adapt to the ground during walking or sports, the oppression feeling and the fatigue feeling of the front sole are reduced, a wearer feels more comfortable in the walking process, the supporting plate extends from the front section to the rear section, the hardness of the supporting plate is larger than that of the rear section, and therefore the supporting plate is more comfortable. The overall structural strength of the sole is enhanced, and excessive deformation of the sole in the long-term use process can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of footwear, in particular to a sole. Background Art

[0002] A Chinese patent document with publication number CN203608908U discloses a new type of sole, including an outsole and a midsole, characterized in that the midsole includes, from back to front, a heel area, a midfoot area, and a toe area, the material density of the heel area is greater than the material density of the midfoot area, and the material density of the toe area is greater than the material density of the midfoot area.

[0003] Although the shoe midsole in the above scheme is composed of three different areas, which can increase the comfort of the shoe midsole during use, the different material densities of the three areas undoubtedly increase the complexity of the process. Moreover, the different densities of the three areas can easily cause the shoe midsole to deform and cause damage during long-term use under different forces. Utility Model Content

[0004] The purpose of the utility model is to provide a sole with reasonable structure and higher use strength.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sole includes a sole body, characterized in that the sole body includes a front section including a forefoot area and a rear section including a heel area, the hardness of the front section is less than the hardness of the rear section, and the sole body is provided with a support plate extending from the front section to the rear section, and the hardness of the support plate is greater than the hardness of the rear section.

[0007] By adopting the above technical solution, since the hardness of the front section where the forefoot area is located is smaller, the forefoot can bend and adapt to the ground more naturally when walking or exercising, reducing the pressure and fatigue of the forefoot, making the wearer feel more comfortable and at ease during walking. The support plate extends from the front section to the rear section, and the hardness of the support plate is greater than that of the rear section, which enhances the overall structural strength of the sole and can prevent the sole from excessive deformation during long-term use.

[0008] The support plate includes a first support section and a second support section, which are interconnected to form a "T"-shaped structure. The first support section extends roughly along the width direction of the front section and is located at the main force-bearing part of the forefoot area. The second support section extends from the front section to the rear section.

[0009] By adopting the above technical solution, the first support section and the second support section are interconnected to form a "T"-shaped structure. The two work together so that the forces from different parts of the foot can be reasonably transmitted and distributed within this structure, avoiding the problem of disconnection or local excessive deformation of the front and rear sections due to uneven force, thereby ensuring the stability and reliability of the sole structure.

[0010] The length of the support plate is 35%-50% of the length of the sole body.

[0011] By adopting the above technical solution, this length range can fully cover the key areas of the sole, ensuring that the forefoot and rearfoot are effectively supported during all stages of walking and exercise, avoiding lack of support due to improper proportions or the sole being too hard or too heavy.

[0012] The length of the front section is 35%-55% of the length of the sole body, and the length of the rear section is 45%-65% of the length of the sole body.

[0013] By adopting the above technical solution, the length settings of the front and rear sections are conducive to balancing function and pressure distribution, and adapting to walking habits. The length of the rear section is 45%-65% of the length of the sole body, which can stably bear the initial weight, and the length of the front section is 35%-55% of the length of the sole body, which can ensure smooth force generation in the forefoot.

[0014] The sole body is made of EVA foam material.

[0015] By adopting the above technical solution, EVA, namely ethylene-vinyl acetate copolymer, has the advantages of excellent elasticity, easy processing and low material cost.

[0016] The sole body is integrally formed of an elastic polymer, and the density of the front section is lower than that of the rear section.

[0017] By adopting the above technical solution, the sole body formed in one piece of elastic polymer has higher strength and is easy to produce. The lower density makes the front section softer, which can better adapt to the bending movement of the forefoot during walking and exercise, reducing the pressure on the forefoot, allowing the wearer to feel comfortable and at ease at the beginning of each step. The higher density of the rear section gives it greater hardness and stability, which can provide solid and reliable support for the heel.

[0018] The hardness of the rear section is 45-53 Shore hardness, and the hardness of the front section is 33-38 Shore hardness.

[0019] By adopting this technical solution, the rear section, with a Shore A hardness of 45-53, provides solid support, stabilizes the heel, and prevents sprains. It is suitable for bearing weight and exerting force in movements such as jumping and sudden stops, and is wear-resistant and durable. The front section, with a Shore A hardness of 33-38, is soft and flexible, cushioning forefoot pressure and adapting to starting and changing direction, making walking and running more comfortable and reducing fatigue and injury risk. The front and rear sections work together to improve the overall performance and wearing experience of the sole.

[0020] It also includes a shoe outsole arranged on the bottom surface of the sole body.

[0021] By adopting the above technical solution, adding a shoe outsole can enhance the overall wear resistance of the sole, protect the internal sole body from direct friction loss on the ground, extend the service life of the sole, and improve the grip of the sole, providing a stable and anti-slip effect under various ground conditions, ensuring walking and sports safety.

[0022] The top surface of the sole body is formed with a mounting groove adapted to the support plate, and the support plate is fixedly arranged in the mounting groove.

[0023] By adopting the above technical solution, the support plate can be accurately positioned and stabilized, the sole's ability to resist displacement and shaking can be enhanced, and the structural stability can be improved.

[0024] The shape of the support plate is adapted to the curvature of the top surface of the sole body or is a flat plate.

[0025] By adopting this technical solution, the support plate's shape matches the curvature of the sole's top surface, ensuring a close fit and evenly distributing pressure. This enhances the sole's structural stability and support, ensuring a more balanced force distribution on the foot and improving wearing comfort. A flat plate is easier to manufacture, reducing production costs and difficulty. This allows for a balance between performance and cost when flexibility is a concern or budget is limited.

[0026] The support plate is made of TPU material or carbon fiber material.

[0027] By adopting the above technical solution, TPU, or thermoplastic polyurethane, has the characteristics of good elasticity, wear resistance, easy processing and light weight, while carbon fiber material has high strength and light weight. In addition, carbon fiber material has excellent torsion resistance, which can effectively reduce the torsion and shaking of the foot and provide stable support for the arch of the foot, especially in high-intensity exercise. The appropriate material can be selected according to different needs during production.

[0028] A buffer pad is provided on the top of the rear section, which is located at the main stress-bearing part of the heel area, and the hardness of the buffer pad is equal to the hardness of the front section.

[0029] By adopting the above technical solution, the cushioning pad is located at the main stress-bearing part of the heel, and its hardness is the same as that of the front section, which can balance the stress deformation of the front and rear sections, and can also enhance the cushioning effect at the heel. When walking or exercising, the impact force of the heel landing is relatively large, and the cushioning pad can effectively absorb part of the impact force, reduce the impact damage to the foot, especially the heel, and relieve fatigue and discomfort caused by long-term walking or high-intensity exercise.

[0030] The top surface of the rear section is provided with a groove for installing a buffer pad, and the buffer pad is fixedly arranged in the groove, and the top surface of the buffer pad is 1.5-2.5 mm higher than the top surface of the rear section.

[0031] By adopting the above technical solution and fixing the cushioning pad in the groove, the cushioning and stability of the heel can be enhanced, the impact force can be absorbed, and the risk of injury can be reduced. Because it is higher than the top surface of the rear section, the cushioning and shock absorption are better and the pace is more stable. The height difference is between 1.5-2.5 mm, making the transition from the heel touching the ground to the sole of the foot landing extremely natural and smooth, and there will be no abrupt or unbalanced foot movements due to the cushioning pad being too high, thus ensuring the continuity and stability of the pace. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a top view of the first embodiment.

[0033] Figure 2 for Figure 1 Cross-sectional view along the AA direction.

[0034] Figure 3 Schematic diagram of the stress-bearing parts of Example 1.

[0035] Figure 4 This is a structural diagram of Example 2. DETAILED DESCRIPTION

[0036] Reference Figures 1 to 3 The following is a description of a shoe sole, and the technical solution of the utility model is further described through a specific embodiment 1 and in conjunction with the accompanying drawings of the specification:

[0037] A sole comprises a sole body 1 integrally formed of EVA foam material, the sole body 1 comprising a front section 11 containing a forefoot area and a rear section 12 containing a heel area, the hardness of the front section 11 being less than that of the rear section 12, and the density of the front section 11 being lower than that of the rear section 12, which makes it more comfortable to wear, wherein the hardness of the rear section 12 is 45-53 Shore hardness, and the hardness of the front section 11 is 33-38 Shore hardness, and within the above hardness range, a suitable hardness can be selected according to the personal needs of different wearers, the length of the above-mentioned front section 11 is 35%-55% of the length of the sole body 1, and the length of the rear section 12 is 45%-65% of the length of the sole body, in this embodiment, the length of the front section 11 is 42% of the length of the sole body, and the length of the rear section 12 is 58% of the length of the sole body, which is a more comfortable setting method that can adapt to most people, and of course, a suitable setting length can also be selected within the above range according to different needs.

[0038] A support plate 13 and a cushioning pad 14 are provided on the sole body 1. The support plate 13 extends from the front section 11 to the rear section 12 and is provided on the sole body 1. The support plate 13 can be a carbon plate made of TPU material or carbon fiber material, so the hardness of the support plate 13 is greater than the hardness of the rear section 12. The length of the support plate 13 is 35%-50% of the length of the sole body 1. The support plate 13 includes a first support section 131 and a second support section 132. The first support section 131 and the second support section 132 are connected to each other to form a "T"-shaped structure. The first support section 131 extends roughly along the width direction of the front section 11 and is located at the main force-bearing part of the forefoot area (such as Figure 3 The area A shown in the figure is located at the junction of the toes and the arch of the foot. The second support section 132 extends from the front section 11 to the rear section 12. A mounting groove 15 adapted to the support plate 13 is formed on the top surface of the sole body 1. The support plate 13 is fixedly arranged in the mounting groove 15, and the support plate 13 is a flat plate structure.

[0039] The hardness of the cushioning pad 14 is equal to that of the front section 11 and can also be made of EVA foam material. Figure 3 A groove 16 for mounting the cushioning pad 14 is provided on the area B shown. The area B is located at the heel. The cushioning pad 14 is cylindrical and is fixedly disposed in the groove 16. The top surface of the cushioning pad 14 is 1.5-2.5 mm higher than the top surface of the rear section 12.

[0040] It also includes an outsole 2 arranged on the bottom surface of the sole body 1. The addition of the outsole 2 can enhance the overall wear resistance of the sole, protect the internal sole body from direct friction loss on the ground, extend the service life of the sole, and improve the grip of the sole, providing a stable and anti-slip effect under various ground conditions, thereby ensuring walking and sports safety.

[0041] During assembly, the support plate 13 and the buffer pad 14 can be fixed in the corresponding mounting groove 15 and groove 16 respectively by adhesive, and then the sole can be fixed to the shoe for use.

[0042] Example 2, refer to Figure 4 As shown, the structural principles and usage methods of Example 2 are basically the same as those of Example 1, and will not be elaborated on here. The difference is that the sole body 1 in Example 2 can be used directly as a sole, and the shape of the support plate 13 in this embodiment is adapted to the curvature of the top surface of the sole body 1, can fit closely to the sole, evenly disperse the pressure, enhance the stability and support of the sole structure, make the force on the foot more reasonable, and improve wearing comfort.

[0043] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of implementation of the present invention. In other words, equivalent changes and modifications made according to the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the present patent.

Claims

1. A sole, comprising a sole body, characterized in that: The sole body includes a front section including a forefoot area and a rear section including a heel area. The hardness of the front section is less than that of the rear section. The sole body is provided with a support plate extending from the front section to the rear section. The hardness of the support plate is greater than that of the rear section.

2. A sole according to claim 1, characterized in that: The support plate includes a first support section and a second support section, which are interconnected to form a "T"-shaped structure. The first support section extends roughly along the width direction of the front section and is located at the main force-bearing part of the forefoot area. The second support section extends from the front section to the rear section.

3. The sole according to claim 1, characterized in that: The length of the support plate is 35%-50% of the length of the sole body.

4. The sole according to claim 1, characterized in that: The length of the front section is 35%-55% of the length of the sole body, and the length of the rear section is 45%-65% of the length of the sole body.

5. The shoe sole according to claim 1, characterized in that: The sole body is made of EVA foam material.

6. A sole according to any one of claims 1 to 5, characterized in that: The sole body is integrally formed of an elastic polymer, and the density of the front section is lower than that of the rear section.

7. A shoe sole according to any one of claims 1 to 5, characterized in that: The hardness of the rear section is 45-53 Shore hardness, and the hardness of the front section is 33-38 Shore hardness.

8. A shoe sole according to any one of claims 1 to 5, characterized in that: It also includes a shoe outsole arranged on the bottom surface of the sole body.

9. A shoe sole according to any one of claims 1 to 5, characterized in that: A mounting groove adapted to the support plate is formed on the top surface of the sole body, and the support plate is fixedly arranged in the mounting groove.

10. The shoe sole according to claim 9, characterized in that: The shape of the support plate is adapted to the curvature of the top surface of the sole body or is a flat plate.

11. A shoe sole according to any one of claims 1 to 5, characterized in that: The support plate is made of TPU material or carbon fiber material.

12. A sole according to any one of claims 1 to 5, characterized in that: A buffer pad is provided on the top of the rear section, which is located at the main stress-bearing part of the heel area, and the hardness of the buffer pad is equal to the hardness of the front section.

13. A shoe sole according to claim 12, characterized in that: The top surface of the rear section is provided with a groove for installing a buffer pad, and the buffer pad is fixedly arranged in the groove, and the top surface of the buffer pad is 1.5-2.5 mm higher than the top surface of the rear section.

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