Sports shoe midsole structure with light transmission effect

By introducing a combination of a translucent foam layer, a cushioning and shock-absorbing layer, and a breathable layer into the shoe midsole structure, the problem of low shoe structure precision caused by manual positioning in existing technologies is solved, achieving high-precision assembly and damage observability, while enhancing protection and color diversity.

CN224386870UActive Publication Date: 2026-06-23FUJIAN PUTIAN YILIDE SHOES MANUFACTURING CO LTD +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN PUTIAN YILIDE SHOES MANUFACTURING CO LTD
Filing Date
2025-09-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing shoe sole structure requires manual gluing and positioning before machine pressing and assembly, resulting in low shoe structure precision.

Method used

The shoe employs a combination structure of a translucent foam layer, a cushioning and shock-absorbing layer, and a breathable layer. It is assembled by applying glue to the fitting groove, manually bonding the parts, and then pressing them together by machine. Combined with the snap-fit ​​groove and protective layer, the shoe's fit accuracy is improved, and the structure can be observed through the transparent material.

Benefits of technology

It improves the precision and observability of the shoe structure, enhances the protection and color matching diversity of the midsole, and allows for timely detection of damage to prevent accidental injuries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of midsole structures of sports shoes with light-transmitting effect, it is related to the technical field of shoe sole structure, a kind of midsole structures of sports shoes with light-transmitting effect includes midsole structure, the midsole structure includes light-transmitting foamed layer, buffer shock attenuation layer and air-permeable layer, the light-transmitting foamed layer lower end is equipped with inlay groove, the buffer shock attenuation layer is set on light-transmitting foamed layer upper end, and with the inlay groove inlaying connection of light-transmitting foamed layer lower end, the buffer shock attenuation layer bottom and light-transmitting foamed layer adhesion connection, the buffer shock attenuation layer upper end is provided with air-permeable layer, and the air-permeable layer lower end and buffer shock attenuation layer adhesion connection, the present scheme provides solves the machine compression combination of existing shoe sole structure commonly used, manual adhesion positioning is usually needed before compression, resulting in the problem of low shoe structure precision.
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Description

Technical Field

[0001] This utility model relates to the field of shoe sole structure technology, specifically to a midsole structure for sports shoes with light-transmitting effect. Background Technology

[0002] The midsole is the layer between the upper and the outsole in a shoe. Its main function is to provide cushioning, shock absorption, and support to protect the foot from the impact of sports activities. Midsole materials are diverse, commonly including EVA (ethylene-vinyl acetate copolymer), polyurethane (PU) foam, gel, and air cushioning, each providing varying degrees of cushioning and rebound performance. The structure and material selection of the midsole directly affect the shoe's comfort, lightweight feel, and performance. A well-designed midsole and appropriate material selection are crucial for the performance of athletic shoes, especially in high-impact sports such as running.

[0003] A shoe midsole, as disclosed in announcement number CN201920982892.8, comprises a sole and a forefoot, forming an arch-shaped midsole. The forefoot is thinner than the sole, and has a pair of through-holes for attaching fabric. The sole has a pair of through-holes for fixing steel cores at its upper and lower portions. On the front of the sole, a pair of non-through-holes for fixing steel cores are located between the upper and lower holes. On the reverse side of the sole, a pair of single-holes for fixing steel cores are located below the upper hole and above the lower hole. This invention reduces the number of nail holes, positioning holes, and ventilation holes in existing shoe midsoles, resulting in a flatter midsole that requires no further processing, thus saving on manufacturing costs.

[0004] In the process of using the above-mentioned device, the existing shoe sole structure is usually assembled by machine pressing. Before pressing, manual bonding and positioning are usually required, resulting in low shoe structure accuracy. Therefore, we propose a sports shoe midsole structure with light transmission effect to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a midsole structure for athletic shoes with light transmission, in order to solve the problem mentioned in the background art that the existing shoe sole structures are usually machine-pressed and assembled, and manual bonding and positioning are usually required before pressing, resulting in low precision of the shoe structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a midsole structure for athletic shoes with a light-transmitting effect, comprising a midsole structure, wherein the midsole structure includes a light-transmitting foam layer, a cushioning and shock-absorbing layer, and a breathable layer, wherein a fitting groove is provided at the lower end of the light-transmitting foam layer, the cushioning and shock-absorbing layer is disposed at the upper end of the light-transmitting foam layer and is fitted and connected to the fitting groove provided at the lower end of the light-transmitting foam layer, the bottom of the cushioning and shock-absorbing layer is bonded to the light-transmitting foam layer, a breathable layer is provided at the upper end of the cushioning and shock-absorbing layer, and the lower end of the breathable layer is bonded to the cushioning and shock-absorbing layer.

[0007] Preferably, the lower end of each of the interlocking grooves at the lower end of the light-transmitting foam layer is provided with a protective layer, the protective layer is integrally formed with the light-transmitting foam layer, the inner wall of the protective layer is attached to the protruding part at the lower end of the buffer and shock-absorbing layer, and the buffer and shock-absorbing layer is an ethylene-vinyl acetate copolymer.

[0008] Preferably, the lower end of the midsole structure is fitted and connected to the sole, and a protective strip is provided on the outer side of the sole.

[0009] Preferably, both the protective layer and the protective strip are made of transparent foam material, which is an EVA / elastomer composite material.

[0010] Preferably, the breathable layer has multiple sets of breathable holes, and the middle part of the breathable layer has a connecting groove.

[0011] Preferably, an inner bottom is provided at the upper end of the breathable layer, and the inner bottom is bonded to the upper end of the breathable layer.

[0012] Preferably, the lower end of the sole is provided with an observation slot, and the lower end of the light-transmitting foam layer is fitted and connected to the observation slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model sets multiple nested combinations between the internal structures of the shoe midsole. When manually bonding, it is only necessary to apply glue to the opening docking groove and the connecting surface. The bottom of the cushioning and shock-absorbing layer has a docking block. The alignment is done manually. After bonding, the excess glue is removed and then machine pressing is performed, which greatly increases the fit accuracy of the shoe. This solves the problem that the existing shoe sole structure usually uses machine pressing combination, and manual bonding and positioning are usually required before pressing, resulting in low shoe structure accuracy.

[0015] (2) By opening a snap-fit ​​groove at the bottom of the sole, the connecting block at the bottom of the cushioning and shock-absorbing layer is snapped and connected to it. A protective layer is set at the bottom of the connecting block, and a protective strip is set on the outer edge of the sole. Both the protective layer and the protective strip are made of transparent foam material. On the one hand, the color of the midsole can be directly seen through, which protects the midsole. At the same time, the midsole color can be changed during processing to ensure the diversity of shoe color matching. On the other hand, the state of the midsole structure can be easily observed through the transparent foam material. Damage can be detected immediately, thereby preventing damage to the cushioning and shock-absorbing layer from causing a series of injuries such as sprains and falls during daily wear. This solves the problem of not being able to observe whether the midsole structure of the shoe is damaged. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an exploded view of the midsole structure of this utility model;

[0019] Figure 4 This is a disassembled view of the breathable layer and the insole of the shoe according to this utility model;

[0020] In the diagram: 1. Midsole structure; 11. Translucent foam layer; 12. Cushioning and shock-absorbing layer; 13. Breathable layer; 14. Protective layer; 2. Protective strip; 3. Connecting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of a sports shoe midsole structure with a light-transmitting effect, comprising a midsole structure 1. The midsole structure 1 includes a light-transmitting foam layer 11, a cushioning and shock-absorbing layer 12, and a breathable layer 13. A fitting groove is provided at the lower end of the light-transmitting foam layer 11. The cushioning and shock-absorbing layer 12 is disposed at the upper end of the light-transmitting foam layer 11 and is fitted and connected to the fitting groove at the lower end of the light-transmitting foam layer 11. The bottom of the cushioning and shock-absorbing layer 12 is bonded to the light-transmitting foam layer 11. A breathable layer 13 is disposed at the upper end of the cushioning and shock-absorbing layer 12, and the lower end of the breathable layer 13 is bonded to the cushioning and shock-absorbing layer 12. By setting multiple sets of nested combinations between the internal structures of the shoe midsole, during manual bonding, only adhesive needs to be applied to the mating grooves and connecting surfaces. A connecting block is provided at the lower end of the cushioning and shock-absorbing layer 12. It is aligned and manually glued. After the glue is glued, the excess glue is removed and then machine pressing is performed. This greatly increases the fit accuracy of the shoe and solves the problem that the existing shoe sole structure usually requires manual gluing and positioning before pressing, which leads to low shoe structure accuracy. By providing a snap-fit ​​groove at the lower end of the sole, the connecting block at the lower end of the cushioning and shock-absorbing layer 12 can be snapped and protruded to it. A protective layer 14 is provided at the lower end of the connecting block, and protective strips 2 are provided on the outer edge of the sole. Both the protective layer 14 and the protective strips 2 are made of transparent foam material, which facilitates the observation of the shoe midsole structure 1 and solves the problem of not being able to observe whether the shoe midsole structure 1 is damaged.

[0023] Please see Figure 3 The lower end of the interlocking groove of the light-transmitting foam layer 11 is provided with a protective layer 14. The protective layer 14 is integrally formed with the light-transmitting foam layer 11. The inner wall of the protective layer 14 is attached to the lower protruding part of the cushioning and shock-absorbing layer 12. The protective layer 14 plays a role in protecting the connecting block set at the lower end of the cushioning and shock-absorbing layer 12. The midsole of the shoe is made of ethylene-vinyl acetate copolymer composite, which has high torque resistance, fatigue resistance, low specific gravity and good transparency.

[0024] Please see Figure 2 The lower end of the midsole structure 1 is fitted and connected to the sole, and protective strips 2 are provided on the outer side of the sole to protect the midsole structure 1.

[0025] Please see Figure 1 Both the protective layer 14 and the protective strip 2 are made of transparent foam material, which is an EVA / elastomer composite material.

[0026] Please see Figure 4 The breathable layer 13 has multiple sets of air vents, and the middle part of the breathable layer 13 has a connecting groove 3.

[0027] Please see Figure 4An insole is provided on the upper end of the breathable layer 13. The insole is bonded to the upper end of the breathable layer 13. By providing a connecting groove 3 on the upper end of the connecting groove 3, the midsole structure 1 can be easily bonded to the insole.

[0028] Please see Figure 3 The bottom of the shoe sole has an observation slot, and the bottom of the light-transmitting foam layer 11 is fitted and connected to the observation slot, which facilitates the observation of the midsole structure 1 of the shoe and also plays a role in assisting in the bonding and assembly of the shoe and the cushioning and shock-absorbing layer 12.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sports shoe midsole structure with light transmission effect, comprising a midsole structure (1), characterized in that: The midsole structure (1) includes a light-transmitting foam layer (11), a cushioning and shock-absorbing layer (12), and a breathable layer (13). The lower end of the light-transmitting foam layer (11) has an interlocking groove. The cushioning and shock-absorbing layer (12) is disposed on the upper end of the light-transmitting foam layer (11) and is interlocked with the interlocking groove at the lower end of the light-transmitting foam layer (11). The bottom of the cushioning and shock-absorbing layer (12) is bonded to the light-transmitting foam layer (11). The upper end of the cushioning and shock-absorbing layer (12) has a breathable layer (13), and the lower end of the breathable layer (13) is bonded to the cushioning and shock-absorbing layer (12).

2. The sports shoe midsole structure with light transmission effect according to claim 1, characterized in that: The lower end of the interlocking groove opened at the lower end of the light-transmitting foam layer (11) is provided with a protective layer (14). The protective layer (14) is integrally formed with the light-transmitting foam layer (11), and the inner wall of the protective layer (14) is attached to the lower protruding part of the buffer and shock-absorbing layer (12).

3. The sports shoe midsole structure with light transmission effect according to claim 2, characterized in that: The lower end of the midsole structure (1) is fitted and connected to the sole, and a protective strip (2) is provided on the outer side of the sole.

4. The sports shoe midsole structure with light transmission effect according to claim 3, characterized in that: Both the protective layer (14) and the protective strip (2) are made of transparent foam material.

5. The sports shoe midsole structure with light transmission effect according to claim 4, characterized in that: The breathable layer (13) has multiple sets of breathable holes, and the middle part of the breathable layer (13) has a connecting groove (3).

6. The sports shoe midsole structure with light transmission effect according to claim 5, characterized in that: The upper end of the breathable layer (13) is provided with an inner bottom, which is bonded to the upper end of the breathable layer (13).

7. The sports shoe midsole structure with light transmission effect according to claim 6, characterized in that: The lower end of the sole is provided with an observation slot, and the lower end of the light-transmitting foam layer (11) is fitted and connected to the observation slot.