Anti-bending TPR sole
By incorporating triangular bending grooves and elastic plates in the forefoot area of the TPR sole, combined with shock-absorbing pads and protective edges, the problem of TPR sole breakage during bending is solved, achieving higher bending resistance and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-03-24
AI Technical Summary
Existing TPR soles are prone to breakage at the forefoot and heel during bending, indicating that their bending resistance needs improvement and affects their lifespan.
A triangular first flex groove is set at the forefoot position of the sole, and an elastic plate is placed in the groove. Combined with the elastic plate, shock-absorbing pad and protective edge, the sole's bending resistance is enhanced, and the elastic plate and shock-absorbing pad can be replaced.
It improves the flexural strength of the sole, reduces the risk of breakage, extends the lifespan of the sole, and extends the overall maintenance cycle of the sole through replaceable parts.
Smart Images

Figure CN224022992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of shoe sole, concretely is a kind of anti-bending TPR shoe sole. BACKGROUND
[0002] TPR material itself has excellent bending, low temperature resistance and elasticity, and the elongation at break can reach 300%-500%, suitable for repeated bending scene, and many existing shoe soles are made of TPR material.
[0003] Through the retrieval, such as patent publication No. CN212994841U, discloses a kind of anti-bending TPR shoe sole, including shoe sole body, adjusting rope;The sole of shoe sole body is set with several parallel broken lines at the sole of foot palm;Several broken lines are arranged along the width direction of shoe sole body;The bottom surface of shoe sole body is set with a ring groove with L-shaped cross section inwardly recessed, the ring groove is parallel with the outer edge contour line of shoe sole body and separates the bottom surface of shoe sole body into annular first part and foot palm-shaped second part, first part is set with first rope hole and second rope hole at the heel, and the outer side of second rope hole is set with a plug-in plug-in bolt;Adjusting rope is wound on the side wall of second part, and two ends are fixed on first part after passing through first rope hole and second rope hole respectively.The adjusting rope has the function of adjusting tension, and the user can control the tension of the adjusting rope to switch the hardness of the shoe sole.
[0004] The above-mentioned patent has obvious beneficial effects, but there are still the following deficiencies in practical operation:
[0005] In reality, when people walk in shoes, the shoe sole will bend at the forefoot position. With the increase of bending times, the shoe sole will break between the forefoot position and the heel position. Therefore, the anti-bending effect of the shoe sole in the above-mentioned comparative document needs to be improved, and thus the shoe sole needs to be improved in the field to solve the defects of the prior art. UTILITY MODEL CONTENT
[0006] In view of the deficiencies of the prior art, the utility model provides an anti-bending TPR shoe sole to improve the anti-bending effect of the shoe sole body, reduce the breaking of the shoe sole body due to bending, and prolong the service life of the shoe sole body.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-bending TPR shoe sole, comprising a shoe sole body, a plurality of first bending grooves are formed at the bottom of the shoe sole body, the plurality of first bending grooves are located at the forefoot position of the shoe sole body, the first bending grooves are triangular, and an elastic sheet is arranged between the opposite side walls in each first bending groove, and the elastic sheet has elasticity.
[0008] Preferably, the elastic sheet is provided with insert strips on opposite sides, and the opposite sidewalls of the first bending groove are provided with insert grooves that are adapted to the insert strips.
[0009] Preferably, the bottom of the shoe sole has a plurality of second bending grooves, the second bending grooves being smaller than the first bending grooves, and the second bending grooves being located between adjacent first bending grooves.
[0010] Preferably, the bottom of the shoe sole is provided with a shock-absorbing pad, which is located at the heel of the shoe sole and has elasticity.
[0011] Preferably, the lower part of the sole is provided with a connecting groove adapted to the shock-absorbing pad, and one side of the shock-absorbing pad is bonded into the connecting groove.
[0012] Preferably, the shock-absorbing pad has several limiting blocks on the side near the sole, and the inner wall of the connecting groove has several limiting grooves that are adapted to the limiting blocks.
[0013] Preferably, the upper side of the sole is provided with a closed-loop protective edge, which is elastic.
[0014] Preferably, the upper part of the sole is provided with several anti-slip ridges with an arc-shaped cross section, and the anti-slip ridges are elastic.
[0015] To address the shortcomings of existing technologies, this utility model provides a bending-resistant TPR shoe sole, overcoming the deficiencies of existing technologies. The beneficial effects of this utility model are as follows:
[0016] In this invention, when the forefoot of the sole is bent, the sole bends at the position of the first bending groove, and the elastic sheet is stretched at the same time, which improves the bending resistance of the sole, reduces the possibility of the sole breaking due to bending, and extends the service life of the sole.
[0017] In this invention, the elastic sheet prevents the top wall of the first bending groove from breaking, extending the service life of the entire shoe sole, and the elastic sheet can be replaced to extend the service life of the shoe sole.
[0018] In this invention, the shock-absorbing pad is made of an elastic material, which improves the shock absorption effect of the shoe sole. Shock-absorbing pads of different heights can be installed, and damaged shock-absorbing pads can be replaced to extend the service life of the entire shoe sole.
[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description
[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0021] Figure 1 This is a schematic diagram of the upper part of the sole of the shoe according to this utility model;
[0022] Figure 2 This is a schematic diagram of the lower part of the shoe sole of this utility model;
[0023] Figure 3 This is a cross-sectional structural diagram of the sole of the present invention;
[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;
[0025] Figure 5 for Figure 3 Enlarged structural diagram at point B.
[0026] In the diagram: 1. Shoe sole; 2. First bending groove; 3. Elastic sheet; 4. Connecting strip; 5. Connecting groove; 6. Second bending groove; 7. Shock-absorbing pad; 8. Connecting groove; 9. Limiting block; 10. Limiting groove; 11. Protective edge; 12. Anti-slip convex strip. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-5 A type of flexural TPR shoe sole includes a sole body 1. The bottom of the sole body 1 has a plurality of first bending grooves 2 located at the forefoot position. The first bending grooves 2 are triangular in shape. An elastic piece 3 is provided between the opposite sidewalls of each first bending groove 2. The elastic piece 3 is elastic. An insert strip 4 is provided on the opposite side of each elastic piece 3. An insert groove 5 adapted to the insert strip 4 is provided on the opposite sidewall of each first bending groove 2. The bottom of the sole body 1 has a plurality of second bending grooves 6. The second bending grooves 6 are smaller than the first bending grooves 2 and are located between adjacent first bending grooves 2.
[0029] Specifically, the sole body 1 is made of TPR material. TPR material itself has excellent flexibility, low temperature resistance and elasticity, and its elongation at break can reach 300%-500%, which improves the bending resistance of the sole body 1. At the same time, it is combined with several first bending grooves 2. When the forefoot of the sole body 1 bends, the sole body 1 bends at the position of the first bending groove 2, and the elastic sheet 3 is stretched, which improves the bending resistance of the sole body 1, reduces the possibility of the sole body 1 breaking due to bending, and extends the service life of the sole body 1. At the same time, it is combined with a second bending groove 6 to further improve the bending resistance of the sole body 1. The elastic sheet 3 is inserted into the insertion groove 5 by the insertion strip 4 and is bonded with glue. When the elastic sheet 3 breaks, the insertion strip 4 in the insertion groove 5 is cut off, and a new insertion strip 4 is inserted into the insertion groove 5 to replace the elastic sheet 3. The elastic sheet 3 prevents the top wall of the first bending groove 2 from breaking, thus extending the service life of the entire sole body 1.
[0030] As a technical optimization of this utility model, the bottom of the shoe sole 1 is provided with a shock-absorbing pad 7, which is located at the heel of the shoe sole 1. The shock-absorbing pad 7 is elastic. The lower part of the shoe sole 1 is provided with a connecting groove 8 that is adapted to the shock-absorbing pad 7. One side of the shock-absorbing pad 7 is bonded to the connecting groove 8. The side of the shock-absorbing pad 7 near the shoe sole 1 is provided with several limiting blocks 9. The inner side wall of the connecting groove 8 is provided with several limiting grooves 10 that are adapted to the limiting blocks 9.
[0031] Specifically, according to the type of footwear to be produced, shock-absorbing pads 7 with appropriate height are glued into the connecting grooves 8. The shock-absorbing pads 7 are made of elastic material, which improves the shock absorption effect of the sole body 1. Several limiting blocks 9 are located in the corresponding limiting grooves 10, which improves the limiting effect of the shock-absorbing pads 7. When the shock-absorbing pads 7 are severely worn, they are cut off and new shock-absorbing pads 7 are glued on again, thus extending the service life of the overall sole.
[0032] As a technical optimization of this utility model, the upper side of the sole body 1 is provided with a closed-loop protective edge 11. The protective edge 11 is elastic and is used to connect the shoe body and protect the connection position between the shoe body and the sole body 1.
[0033] As a technical optimization of this utility model, the upper part of the sole body 1 is provided with a number of anti-slip ridges 12 with an arc-shaped cross section. The anti-slip ridges 12 are elastic, which improves the anti-slip effect between the sole body 1 and the foot.
[0034] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bending-resistant TPR shoe sole, comprising a sole body (1), characterized in that, The bottom of the sole (1) has several first bending grooves (2), which are located at the forefoot position of the sole (1). The first bending grooves (2) are triangular in shape, and each first bending groove (2) has an elastic piece (3) between the opposite side walls. The elastic piece (3) is elastic.
2. The bending-resistant TPR shoe sole according to claim 1, characterized in that, The elastic sheet (3) is provided with insert strips (4) on opposite sides, and the first bending groove (2) is provided with insert grooves (5) that are adapted to the insert strips (4) on opposite side walls.
3. The flexurally resistant TPR shoe sole according to claim 1, characterized in that, The bottom of the shoe sole (1) has several second bending grooves (6), which are smaller than the first bending grooves (2) and are located between adjacent first bending grooves (2).
4. The flexurally resistant TPR shoe sole according to claim 1, characterized in that, The bottom of the sole (1) is provided with a shock-absorbing pad (7), which is located at the heel of the sole (1) and is elastic.
5. The flexurally resistant TPR shoe sole according to claim 4, characterized in that, The lower part of the sole (1) is provided with a connecting groove (8) that is compatible with the shock-absorbing pad (7), and one side of the shock-absorbing pad (7) is bonded to the connecting groove (8).
6. The flexurally resistant TPR shoe sole according to claim 5, characterized in that, The shock-absorbing pad (7) has several limiting blocks (9) on the side near the sole (1), and the inner wall of the connecting groove (8) has several limiting grooves (10) that are adapted to the limiting blocks (9).
7. The flexurally resistant TPR shoe sole according to claim 1, characterized in that, The upper side of the sole (1) is provided with a closed-loop protective edge (11), which is elastic.
8. The flexurally resistant TPR shoe sole according to claim 1, characterized in that, The upper part of the sole (1) is provided with several anti-slip ridges (12) with an arc-shaped cross section, and the anti-slip ridges (12) are elastic.
Citation Information
Patent Citations
Anti-bending TPR sole
CN212994841U