Shock pad and sole adopting same

By designing a TPU shock-absorbing pad and an EVA/CPU sole structure, the problems of easy damage and lack of power assistance of existing shock-absorbing pads have been solved, achieving stable shock absorption and power assistance, and improving stability and comfort during use.

CN223541477UActive Publication Date: 2025-11-14杨团围
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Patent Information

Application Number
CN202520095130.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-11-14
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

Existing shock-absorbing pads are easily damaged by external objects during use, resulting in unstable shock absorption and a lack of auxiliary function.

Method used

Design a shock-absorbing pad made of TPU material, using strip-shaped blocks with a hardness of 55-75D, with inclined sections and through holes inside. Combined with the sole structure of EVA and CPU materials, the pad utilizes the elasticity and thrust of the inclined sections to achieve shock absorption and assist effect, and enhances installation stability through curved edges and lugs.

Benefits of technology

It achieves stable shock absorption, reduces foot fatigue, and does not affect shock absorption performance when damaged, while also providing a power assist effect, improving stability and comfort during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a shock pad which comprises a body, the body is an integrally-formed piece with the hardness ranging from 55 D to 75 D, the body is a strip-shaped block body, the bottom face of the strip-shaped block body is composed of an inclined section and a transverse section, the inclined section is obliquely arranged upwards in the heel direction, and a through hole penetrating in the width direction of the strip-shaped block body is formed in the strip-shaped block body. The inner diameters of the through holes are gradually reduced along the two ends of the length direction of the strip-shaped block body. According to the shock pad, by means of the inclined section on the lower bottom face of the shock pad, the inclined section can be treaded downwards when the heel of a human body walks, the inclined section is pressed at the moment, the shock absorption effect is achieved, meanwhile, when the heel is lifted upwards, the inclined section is reset upwards, and upward and forward inclined boosting force is exerted on the heel of the human body, so that the foot of the human body walks easily; and the whole structure is free of any vacuum structure, the whole damping effect cannot be affected after being scratched by foreign objects, and the damping effect is stable. The utility model further discloses a sole with the shock pad.
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Description

Technical Field

[0001] This utility model relates to the field of footwear, and in particular to a shock-absorbing pad and a shoe sole. Background Technology

[0002] Most existing shoe soles are required to be soft and elastic to provide cushioning and prevent foot injuries. However, most current shoe soles are made of EVA, TPU, and other materials in a single piece, relying on the material's elasticity for shock absorption. Furthermore, in addition to shock absorption, these materials must also have a certain degree of wear resistance and hardness. Therefore, relying solely on the material's elasticity for shock absorption is not ideal. To address this, there are shock-absorbing pads installed in the soles of shoes. Similar to the shock-absorbing composite sports insole disclosed in CN222074626U, these pads have a through-hole inside, with a hollow block made of latex material embedded within. However, because these pads are exposed during use, if they are punctured by sharp objects during walking or storage, the vacuum inside the pad will leak, causing shock absorption failure and unstable shock absorption. Additionally, these pads only provide shock absorption and do not offer any assistance to the foot during walking.

[0003] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0004] The purpose of this utility model is to provide a shock-absorbing pad to solve the problems of existing shock-absorbing pads being affected by damage from external objects during use, having unstable shock-absorbing effects, and lacking auxiliary functions.

[0005] Another objective of this invention is to provide a shoe sole that solves the problem that existing shoe soles' shock-absorbing pads are damaged by external objects during use, affecting their shock absorption function, resulting in unstable shock absorption and no assistive function.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A shock-absorbing pad includes a body, which is an integrally molded part with a hardness of 55-75D. The body is a strip-shaped block extending along the width direction of the shoe sole. The bottom surface of the strip-shaped block is composed of an inclined section and a transverse section. The inclined section is inclined upward towards the heel of the shoe. A through hole is formed in the strip-shaped block, which extends along the width direction of the strip-shaped block. The inner diameter of the through hole gradually decreases at both ends along the length direction of the strip-shaped block.

[0008] The aforementioned body is a TPU block.

[0009] The maximum inner diameter of the aforementioned through hole is 1.0-1.5 cm.

[0010] The length of the aforementioned inclined section is 2-4 cm.

[0011] With the length direction of the strip block as the front and back direction, the top front and back sides of the strip block are provided with an upper arc-shaped edging, and the bottom front and back sides are provided with a lower edging.

[0012] The left end of the strip-shaped block has left convex ears on both the front and rear sides, which are pointed in shape. The right end of the strip-shaped block has right convex ears on both the front and rear sides, which are pointed in shape.

[0013] The top surface of the strip-shaped block is curved, and the left and right sides of the top surface of the strip-shaped block coincide with the left and right sides of the bottom surface of the strip-shaped block.

[0014] A shoe sole includes a sole body, the sole body having an upper and an outsole, and also including a shock-absorbing pad. The upper is an EVA upper, the hardness of the upper is greater than the hardness of the shock-absorbing pad, the hardness difference between the upper and the shock-absorbing pad is 8-12D. The outsole is a CPU outsole. The upper has a first upper and a second upper. The first upper conforms to the shape of the shoe sole. The bottom surface of the first upper is concave upwards corresponding to the arch of the human foot and extends to the heel. The second upper is attached to the concave. The bottom surface of the second upper and the bottom surface of the first upper are both the bottom surfaces of the upper. The top surface of the second upper is concave downwards at the heel and has a receiving recess. The shock-absorbing pad is embedded in this receiving recess. The outsole is attached to the bottom surface of the upper.

[0015] With the above technical solution, the present invention provides a shock-absorbing pad that is applied to the sole of a shoe at the heel of the human foot. When in use, the inclined section on the bottom of the shock-absorbing pad allows the human foot to step down on the inclined section when walking. At this time, the inclined section is compressed, achieving a shock-absorbing effect. At the same time, when the heel is lifted up, the inclined section returns to its original position, providing an upward and forward pushing force to the human foot, making walking easier and reducing foot fatigue. Moreover, the entire structure has no vacuum structure, so scratches from external objects will not affect the overall shock-absorbing effect, and the shock-absorbing function is stable. Attached Figure Description

[0016] Figure 1 This is a side view of the shock-absorbing pad of this utility model;

[0017] Figure 2 This is a top-view schematic diagram of the shock-absorbing pad of this utility model;

[0018] Figure 3 This is a three-dimensional view of the sole of the shoe according to this utility model. Detailed Implementation

[0019] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.

[0020] This utility model provides a shock-absorbing pad, such as... Figure 1-2 As shown, it includes a body 1, which is an integrally molded part with a hardness of 55-75D. The body 1 is a strip-shaped block extending along the width direction of the sole. The length direction of the strip-shaped block is the front-back direction. The bottom surface of the strip-shaped block is composed of an inclined section 100 and a transverse section 101. The inclined section 100 is inclined upward towards the heel of the shoe. A through hole 200 is opened in the strip-shaped block and extends through the width direction of the strip-shaped block. The inner diameter of the through hole 200 gradually decreases at both ends along the length direction of the strip-shaped block, that is, the through hole 200 extends through the front-back direction of the strip-shaped block.

[0021] Specifically, this body 1 is a TPU block with a certain degree of elasticity and a hardness of 60D. The top surface of the strip-shaped block is curved, and the left and right sides of the top surface of the strip-shaped block correspond to the left and right sides of the bottom surface of the strip-shaped block. That is, the thickness of the strip-shaped block gradually decreases to close to 0 in the left and right directions. The through hole 200 is surrounded by an upper inner hole wall and a lower inner hole wall. The upper inner hole wall is a slightly convex arc wall. The lower inner hole wall has an inclined wall with the same inclination direction as the inclined section 100 and a transverse wall corresponding to the transverse section. The transverse wall is close to straight. The diameter of the through hole 200 is largest in the vertical direction at the junction of the inclined wall and the transverse wall, with a maximum inner diameter range of 1.0-1.5cm, preferably 1.1cm. The length of the inclined section is 2-4cm.

[0022] This novel shock-absorbing pad is applied to the sole of a shoe at the heel. During use, the inclined section 100 on the bottom of the pad and the pad's elasticity allow the heel to press down on the inclined section as the person walks. This pressure on the inclined section achieves a shock-absorbing effect. Simultaneously, when the heel is lifted, the inclined section returns to its original position, providing an upward and forward thrust to the heel, making walking easier and reducing foot fatigue. Furthermore, the entire structure has no vacuum, so scratches from external objects will not affect the overall shock-absorbing effect, ensuring stable shock absorption.

[0023] In this new design, the superior feature is that the top front and rear sides of the strip block are provided with upward-protruding upper arc-shaped edging 11, and the bottom front and rear sides of the strip block are provided with downward-protruding lower edging (not shown in the figure). The shape of the lower edging matches the shape of the bottom surface of the shock-absorbing pad. The use of upper and lower arc-shaped edgings allows the strip block to fit snugly on the sole, resulting in a more stable installation. Alternatively, the left end of the strip block can be provided with left protrusions on both the front and rear sides, with the left protrusions having a pointed structure, and the right end of the strip block can be provided with right protrusions on both the rear and rear sides, with the right protrusions having a pointed structure. The upper arc-shaped edging and lower edging on the left and right sides extend to the left and right protrusions respectively. This allows the left and right ends of the entire strip block to fit into the sole during installation, further ensuring the stability of the installation. In addition, the V-shaped shape of the bottom surface of the body can improve the shock absorption effect of the entire body and improve the fit between the body and the sole.

[0024] This novel shoe sole, such as Figure 3 As shown, the shoe includes a sole body, which has an upper sole 2 and an outsole 3, and also includes a shock-absorbing pad as described in the above embodiment. The upper sole 2 is an EVA upper sole, and the hardness of the upper sole 2 is greater than the hardness of the shock-absorbing pad, that is, the hardness of the upper sole 2 is greater than the hardness of the sole body 1. The hardness difference between the upper sole 2 and the shock-absorbing pad (i.e., the sole body 1) is 8-12D, with an optimal value of 9D. The outsole 2 is a CPU outsole, which is an existing material with excellent anti-slip, wear-resistant, and lightweight properties. The upper sole 2 has a first upper sole 21 and a second upper sole 22. The first upper sole 21 matches the shape of the shoe sole. The bottom surface of the first upper sole 21 is concave upward corresponding to the arch of the human foot and extends to the heel of the human foot. The second upper sole 22 is attached to the concave area. The first upper sole 21 and the second upper sole 22 form the complete shoe sole shape. The bottom surface of the second upper sole and the bottom surface of the first upper sole are both the bottom surface of the upper sole. The top surface of the second upper sole is concave at the heel of the human foot and has a receiving recess. The shock-absorbing pad is embedded in this receiving recess. The outsole 3 is attached to the bottom surface of the upper sole 2. The outsole 3 is a rubber outsole.

[0025] By adopting the above technical solution, the shock-absorbing pad of this new type of shoe can make the entire sole have the same effect as the shock-absorbing pad, that is, the shock absorption effect is excellent, making it easier for the human foot to walk and reducing foot fatigue. Moreover, the entire structure has no vacuum structure, so the shock absorption effect will not be affected by scratches from external objects, and the shock absorption effect is stable. At the same time, the installation of the shock-absorbing pad can be facilitated by the disassembly and assembly of the first upper sole and the second upper sole.

[0026] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A shock-absorbing pad, comprising a body, characterized in that: The aforementioned body is an integrally molded part with a hardness of 55-75D. The aforementioned body is a strip-shaped block extending along the width direction of the sole. The bottom surface of the aforementioned strip-shaped block is composed of an inclined section and a transverse section. The inclined section is inclined upward towards the heel of the shoe. A through hole is opened in the aforementioned strip-shaped block, extending along the width direction of the strip-shaped block. The inner diameter of the through hole gradually decreases at both ends along the length direction of the strip-shaped block.

2. The shock-absorbing pad according to claim 1, characterized in that: The aforementioned body is a TPU block.

3. The shock-absorbing pad according to claim 1, characterized in that: The maximum inner diameter of the aforementioned through hole is 1.0-1.5 cm.

4. The shock-absorbing pad according to claim 1, characterized in that: The length of the aforementioned inclined section is 2-4 cm.

5. A shock-absorbing pad according to claim 1, characterized in that: With the length direction of the strip block as the front and back direction, the top front and back sides of the strip block are provided with an upper arc-shaped edging, and the bottom front and back sides are provided with a lower edging.

6. A shock-absorbing pad according to claim 5, characterized in that: The left end of the strip-shaped block has left convex ears on both the front and rear sides, which are pointed in shape. The right end of the strip-shaped block has right convex ears on both the front and rear sides, which are pointed in shape.

7. A shock-absorbing pad according to claim 5, characterized in that: The top surface of the strip-shaped block is curved, and the left and right sides of the top surface of the strip-shaped block coincide with the left and right sides of the bottom surface of the strip-shaped block.

8. A shoe sole, comprising a sole body, the sole body having an upper and an outsole, characterized in that: It also includes a shock-absorbing pad as described in any one of claims 1-7, wherein the upper outsole is an EVA upper outsole, the hardness of the upper outsole is greater than the hardness of the shock-absorbing pad, the hardness difference between the upper outsole and the shock-absorbing pad is 8-12D, the outsole is a CPU outsole, the upper outsole has a first upper outsole and a second upper outsole, the first upper outsole conforms to the shape of the shoe sole, the bottom surface of the first upper outsole is concave upward corresponding to the arch of the human foot and extends to the heel of the human foot, the second upper outsole is adhered to the concave area, the bottom surface of the second upper outsole and the bottom surface of the first upper outsole are both the bottom surface of the upper outsole, and the second upper outsole... The top surface has a recessed area at the heel of the foot, into which the aforementioned shock-absorbing pad is embedded. The aforementioned outsole is attached to the bottom surface of the aforementioned upper outsole.

Citation Information

Patent Citations

  • Damping composite sports insole

    CN222074626U