Sole with elastic supporting framework

By designing an elastic support frame in the sole, including support mechanisms and air cushioning, the problem of low energy return in traditional running shoes is solved, achieving better cushioning and rebound performance and improving the comfort of running shoes.

CN224179253UActive Publication Date: 2026-05-01FOSHAN PINRUI SHOE MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN PINRUI SHOE MATERIAL CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional running shoes have low energy return, causing runners to consume energy with each step, which cannot meet the needs of cushioning and rebound performance.

Method used

Design a shoe sole with an elastic support skeleton, including a support mechanism and an air cushion. The support mechanism consists of an extrusion frame, a first cushioning frame, a second cushioning frame, and a third cushioning frame, and is made of elastic polymer. It is fixed by buckles and adhesives and works with the air cushion to provide elastic support.

Benefits of technology

It improves the cushioning and elasticity of the sole, enhances the support and comfort of the foot in the midsole, and improves the overall comfort of the shoe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sole with an elastic supporting framework, which belongs to the technical field of shoes, aims to solve the problem of poor cushioning and rebound resilience, and comprises a side frame, a middle sole and a supporting frame, the supporting frame is fixedly connected to the periphery of the middle sole, and the bottom of the side frame is fixedly connected with a bottom plate. A matching groove matched with the supporting frame is formed in the upper portion of the side frame and corresponds to the supporting frame, the supporting frame is connected with the side frame through the matching groove, a supporting mechanism is arranged between the insole and the bottom plate, and an air cushion is arranged in the bottom plate, protrudes out of the upper surface of the bottom plate and is arranged below the insole. Buffering support is formed between the insole and the bottom plate through the supporting mechanism arranged between the bottom plate and the insole, elasticity can be provided for the insole according to the motion state of the insole through the air cushion arranged in the bottom plate in a matched mode, and therefore the overall buffering and elastic performance of the shoe sole is improved.
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Description

A shoe sole with an elastic support frame Technical Field

[0001] This utility model belongs to the field of footwear technology, specifically relating to a shoe sole with an elastic support frame. Background Technology

[0002] With the development of technology, people's pursuit of shoes has gone beyond just protecting their feet; they also want shoes to have other functions. For example, for running shoes, a good pair plays an important role in improving training efficiency, protecting runners, and improving running performance.

[0003] When runners exercise in traditional running shoes, the low energy return of these shoes causes them to consume energy with every step they take, failing to meet the runner's needs for cushioning and rebound performance.

[0004] Therefore, a shoe sole with an elastic support frame is needed to solve the problem of poor cushioning and rebound performance in existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a shoe sole with an elastic support frame to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shoe sole with an elastic support skeleton, comprising a side frame, a midsole, and a support frame. The support frame is fixedly connected to the outer periphery of the midsole. A bottom plate is fixedly connected to the bottom of the side frame. A matching groove is provided on the upper part of the side frame corresponding to the support frame. The support frame is connected to the side frame through the matching groove. A support mechanism is provided between the midsole and the bottom plate. An air cushion is provided inside the bottom plate. The air cushion protrudes from the upper surface of the bottom plate and is located below the midsole.

[0007] It should be noted in the solution that the support mechanism is set at the bottom of the middle bottom by matching the thickness of the support frame, and is fitted to the upper part of the bottom plate.

[0008] It is further worth noting that the support mechanism includes a compression frame and a first buffer frame. The first buffer frame is fixedly connected to the bottom of the midsole and is located near the outer periphery. The compression frame is located between the first buffer frame and the support frame. A second buffer frame and a third buffer frame are fixedly connected to the bottom of the midsole on one side inside the first buffer frame.

[0009] It should be further noted that the compression frame is elastic.

[0010] In a preferred embodiment, the first buffer frame, the second buffer frame, and the third buffer frame all have C-shaped cross sections and are connected to the upper part of the base plate.

[0011] In a preferred embodiment, the first buffer frame, the second buffer frame, and the third buffer frame are arranged in a U-shape at the bottom of the middle base.

[0012] In a preferred embodiment, the internal structure of the air cushion is a closed air bladder, and the filling gas is nitrogen or air.

[0013] Compared with the prior art, the shoe sole with an elastic support frame provided by this utility model has at least the following beneficial effects:

[0014] (1) By setting a support mechanism between the sole plate and the midsole, a buffer support is formed between the midsole and the sole plate. In conjunction with the air cushion set in the sole plate, the midsole can be provided with elasticity according to its movement state, thereby improving the overall cushioning and elasticity performance of the sole.

[0015] (2) The support mechanism ensures the comprehensiveness of the cushioning support between the midsole and the sole plate, thereby improving the comfort of the midsole's support for the foot and thus improving the overall comfort of the sole during use. Attached Figure Description

[0016] Figure 1 is a three-dimensional structural diagram of this utility model;

[0017] Figure 2 is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 is a schematic diagram of the cross-sectional structure of this utility model.

[0019] In the diagram: 1. Side frame; 2. Midsole; 3. Support frame; 301. Matching groove; 4. Base plate; 401. Air cushion; 5. Support mechanism; 501. Extrusion frame; 502. First buffer frame; 503. Second buffer frame; 504. Third buffer frame. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Please refer to Figures 1-3. This utility model provides a shoe sole with an elastic support skeleton, including a side frame 1, a midsole 2, and a support frame 3. The support frame 3 is fixedly connected to the outer periphery of the midsole 2. A base plate 4 is fixedly connected to the bottom of the side frame 1. A matching groove 301 is opened on the upper part of the side frame 1 corresponding to the support frame 3. The support frame 3 is connected to the side frame 1 through the matching groove 301. A support mechanism 5 is provided between the midsole 2 and the base plate 4. An air cushion 401 is provided inside the base plate 4. The air cushion 401 protrudes from the upper surface of the base plate 4 and is located below the midsole 2. The internal structure of the air cushion 401 is a closed air bladder, and the filling gas is nitrogen or air.

[0022] Further, as shown in Figures 1 and 2, it is worth noting that the support mechanism 5 is set at the bottom of the middle base 2 by matching the thickness of the support frame 3, and is attached to the upper part of the base plate 4. The support frame 3 and the matching groove 301 are double fixed by snap-fit ​​and adhesive (such as polyurethane glue).

[0023] When in use, the midsole 2 is subjected to pressure, which is applied to the air cushion 401. The air cushion 401 can provide elastic support to the foot according to the force applied by the foot, thereby improving the wrapping and support of the midsole 2.

[0024] As can be seen from the above working process, the support mechanism 5 set between the bottom plate 4 and the midsole 2 forms a buffer support between the midsole 2 and the bottom plate 4. In conjunction with the air cushion 401 set in the bottom plate 4, it can provide elasticity to the midsole 2 according to its movement state, thereby improving the overall cushioning and elasticity performance of the shoe sole.

[0025] Further, as shown in Figures 2 and 3, it is worth noting that the support mechanism 5 includes a compression frame 501 and a first buffer frame 502. The compression frame 501 is elastic. The first buffer frame 502 is fixedly connected to the bottom of the midsole 2 and is located near the outer periphery. The compression frame 501 is located between the first buffer frame 502 and the support frame 3. A second buffer frame 503 and a third buffer frame 504 are fixedly connected to the bottom of the midsole 2 on one side inside the first buffer frame 502. The cross-sections of the first buffer frame 502, the second buffer frame 503, and the third buffer frame 504 are all C-shaped and connected to the upper part of the base plate 4. The first buffer frame 502, the second buffer frame 503, and the third buffer frame 504 are arranged in a U-shape at the bottom of the midsole 2.

[0026] The first buffer frame 502, the second buffer frame 503, and the third buffer frame 504 are made of elastic polymers (such as TPU, EVA, or PEBAX) to ensure a deformation recovery rate of ≥90%. The elastic modulus of the extrusion frame 501 must be lower than that of the buffer frame to allow for preferential deformation. The first buffer frame 502 is set along the outer edge of the middle bottom 2, and the second buffer frame 503 and the third buffer frame 504 are nested inward in a concentric U-shape to form a gradient buffer layer.

[0027] In use, the first buffer frame 502, the second buffer frame 503, and the third buffer frame 504 provide comprehensive support to the midsole 2, which improves the integrity of the midsole 2 in supporting the foot, thereby improving its comfort. Furthermore, the first buffer frame 502, the second buffer frame 503, and the third buffer frame 504 can form an elastic effect, and their C-shaped structure greatly enhances their elastic support, thereby improving the elasticity of the shoe.

[0028] Specifically, the C-shaped openings of the first buffer frame 502, the second buffer frame 503, and the third buffer frame 504 are closed by radial force to store elastic potential energy. When the foot is lifted, the C-shaped structure unfolds and releases energy, pushing the midsole 2 to rebound. The top of the air cushion 401 is in direct contact with the midsole 2, and the bottom is embedded in the base plate 4 to prevent displacement.

[0029] The connection between the first buffer frame 502, the second buffer frame 503, the third buffer frame 504, and the extrusion frame 501 and the midsole 2 or the base plate 4 is achieved by in-mold integral molding or hot-press bonding process.

[0030] This solution has the following working process: When this device is used, the sole of the foot contacts the upper part of the midsole 2. At this time, the midsole 2 is subjected to pressure, which is applied to the air cushion 401. The air cushion 401 can provide elastic support to the foot according to the force applied by the foot, thereby improving the wrapping support of the midsole 2. In use, the first buffer frame 502, the second buffer frame 503 and the third buffer frame 504 provide comprehensive support to the midsole 2, which can improve the integrity of the midsole 2 in supporting the foot, thereby improving its comfort. Furthermore, the first buffer frame 502, the second buffer frame 503 and the third buffer frame 504 can form an elastic effect. Through its C-shaped structure, the elastic support is greatly improved, thereby improving the elasticity of the shoe.

[0031] In summary: the support mechanism 5, located between the sole plate 4 and the midsole 2, provides cushioning support between the midsole 2 and the sole plate 4. Combined with the air cushion 401 within the sole plate 4, it provides elasticity to the midsole 2 according to its movement, thereby improving the overall cushioning and elasticity of the sole. The support mechanism 5 ensures comprehensive cushioning support between the midsole 2 and the sole plate 4, thus enhancing the comfort of the midsole 2 in supporting the foot and improving the overall comfort of the sole during use.

Claims

1. A shoe sole with an elastic support frame, comprising a side frame (1), a midsole (2), and a support frame (3), wherein the support frame (3) is fixedly connected to the outer periphery of the midsole (2), characterized in that: The bottom of the side frame (1) is fixedly connected to the base plate (4). The upper part of the side frame (1) is provided with a matching groove (301) corresponding to the support frame (3). The support frame (3) is connected to the side frame (1) through the matching groove (301). A support mechanism (5) is provided between the midsole (2) and the base plate (4). An air cushion (401) is provided inside the base plate (4). The air cushion (401) protrudes from the upper surface of the base plate (4) and is located below the midsole (2).

2. The shoe sole with an elastic support frame according to claim 1, characterized in that: The support mechanism (5) is set at the bottom of the middle bottom (2) by matching the thickness of the support frame (3) and is fitted to the upper part of the bottom plate (4).

3. The shoe sole with an elastic support frame according to claim 2, characterized in that: The support mechanism (5) includes a compression frame (501) and a first buffer frame (502). The first buffer frame (502) is fixedly connected to the bottom of the midsole (2) and is located near the outer periphery. The compression frame (501) is located between the first buffer frame (502) and the support frame (3). The first buffer frame (502) has a second buffer frame (503) and a third buffer frame (504) fixedly connected to the bottom of the midsole (2) on one side inside.

4. The shoe sole with an elastic support frame according to claim 3, characterized in that: The extrusion frame (501) is elastic.

5. A shoe sole with an elastic support frame according to claim 4, characterized in that: The first buffer frame (502), the second buffer frame (503) and the third buffer frame (504) are all C-shaped in cross section and are connected to the upper part of the base plate (4).

6. The shoe sole with an elastic support frame according to claim 5, characterized in that: The first buffer frame (502), the second buffer frame (503) and the third buffer frame (504) are arranged in a U-shape at the bottom of the middle bottom (2).

7. The sole with an elastic support frame according to claim 1, characterized in that: The internal structure of the air cushion (401) is a closed air bladder, and the filling gas is nitrogen or air.