Anti-cracking slipper sole
By incorporating U-shaped and tapered grooves and reinforced connecting strips into the soles of slippers, combined with a hot-pressed bonding structure, the problem of excessive local pressure caused by anti-slip bumps is solved, thus improving the comfort and crack resistance of the slippers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU NAIBAO SHOES CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-04-21
AI Technical Summary
Existing slippers have soles with individually designed anti-slip bumps that cause excessive local pressure, affecting wearing comfort.
The slipper sole features U-shaped and tapered grooves at the front and back, reinforced with connecting strips. These grooves and strips are then combined with a hot-pressed extension structure and fixed using adhesive or injection molding to distribute pressure and enhance connection stability.
It effectively disperses support and positioning, prevents excessive local pressure, improves wearing comfort, and prevents the groove from cracking under strong torsional deformation.
Smart Images
Figure CN224140260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a crack-resistant slipper sole, belonging to the field of slipper soles. Background Technology
[0002] Slippers are a type of shoe with an open heel and a toe box. They are usually flat and do not require laces. They are often made of lightweight and soft materials such as leather, plastic, or fabric. Types of slippers vary depending on the occasion and intended use.
[0003] To increase friction with the ground, existing slippers have anti-slip bumps on the sole surface. Each anti-slip bump is set independently, and the concentrated support of the anti-slip bumps can lead to excessive local pressure, which can easily affect the comfort of wearing them. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a crack-resistant slipper sole, so as to solve the problem that in order to increase the friction with the ground, the existing slipper soles are equipped with anti-slip bumps on the outsole surface. Each anti-slip bump is set independently, and the concentrated support of the anti-slip bumps leads to excessive local pressure, which can easily affect the comfort of wearing.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a crack-resistant slipper sole, the structure of which includes an outsole and a midsole; the midsole is connected to the top surface of the outsole; and a crack-resistant structure is provided at the connection between the outsole and the midsole;
[0006] The outsole has a U-shaped groove at the front and a conical groove at the heel. Both sides of the U-shaped and conical grooves are provided with a number of anti-slip protrusions at intervals. The bottom surface of each anti-slip protrusion has at least one strip-shaped anti-slip groove. The inner side of the U-shaped groove is connected to a number of first reinforcing connecting strips from front to back. There is at least one first anti-slip protrusion between every two first reinforcing connecting strips. The inner side of the conical groove is connected to a number of second reinforcing connecting strips from front to back. There is at least one second anti-slip protrusion between every two second reinforcing connecting strips.
[0007] Furthermore, in order to connect and fix it to the shoe upper, the anti-slip protrusion is provided with a shoe upper connection groove that extends through to the top surface of the midsole.
[0008] Furthermore, in order to improve the strength of the connection and prevent cracking, the anti-cracking structure includes a wrapping groove located on the outer side of the bottom of the midsole and a wrapping strip located on the edge of the top surface of the outsole. The wrapping strip is formed into an extension that wraps and fixes the wrapping groove after being hot-pressed by a mold.
[0009] Furthermore, to improve the stability of the connection, the outsole and midsole are connected by one of the following methods: sewing, gluing, or injection molding.
[0010] Furthermore, in order to distribute the pressure on the forefoot, the first reinforcing connecting strip has a V-shaped structure.
[0011] Furthermore, for directional friction on the heel, the second reinforcing connecting strip has a straight-line structure.
[0012] The beneficial effects of this utility model are: U-shaped grooves and conical grooves are respectively set at the front and back of the sole of the slipper. The U-shaped grooves and conical grooves, together with the corresponding first and second reinforcing connecting strips, effectively disperse and support the positioning, preventing excessive local pressure. At the same time, the connection of the groove structure is strengthened to prevent the U-shaped grooves and conical grooves from cracking when subjected to strong torsional deformation. Attached Figure Description
[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0014] Figure 1 This is a side view of the anti-cracking sole of a slipper according to the present invention.
[0015] Figure 2 This is a bottom view structural diagram of the anti-cracking slipper sole according to the present invention;
[0016] Figure 3 This is a schematic diagram of a partial cross-sectional structure connecting the outsole and midsole.
[0017] Figure 4 This is a schematic diagram of the uncut partial connection structure between the outsole and midsole.
[0018] In the diagram: Outsole-1, Midsole-2, U-shaped groove-11, Conical groove-12, Anti-slip protrusion-13, Strip anti-slip groove-14, Upper connecting groove-15, First reinforcing connecting strip-16, First anti-slip protrusion-17, Second reinforcing connecting strip-18, Second anti-slip protrusion-19, Wrapping groove-21, Wrapping strip-101, Extension-102. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example 1
[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This utility model provides a crack-resistant slipper sole technical solution: its structure includes an outsole 1 and a midsole 2; the midsole 2 is connected to the top surface of the outsole 1; and a crack-resistant structure is provided at the connection between the outsole 1 and the midsole 2.
[0021] like Figure 2 As shown, the outsole 1 has a U-shaped groove 11 at the front of the sole and a conical groove 12 at the heel. Several anti-slip protrusions 13 are spaced apart on both sides of the U-shaped groove 11 and the conical groove 12. The bottom surface of the anti-slip protrusions 13 has at least one strip-shaped anti-slip groove 14. Several first reinforcing connecting strips 16 are connected sequentially from front to back on the inner side of the U-shaped groove 11. At least one first anti-slip protrusion 17 is provided between every two first reinforcing connecting strips 16. Several second reinforcing connecting strips 18 are connected sequentially from front to back on the inner side of the conical groove 12. At least one second anti-slip protrusion 19 is provided between every two second reinforcing connecting strips 18.
[0022] The outsole 1, U-shaped groove 11, conical groove 12, anti-slip protrusion 13, strip anti-slip groove 14, first reinforcing connecting strip 16, first anti-slip protrusion 17, second reinforcing connecting strip 18, and second anti-slip protrusion 19 are integrally formed.
[0023] In order to be connected and fixed to the shoe upper, the anti-slip protrusion 13 is provided with a shoe upper connection groove 15 that extends through to the top surface of the midsole 2.
[0024] To improve the strength of the connection and prevent cracking, the anti-cracking structure includes a wrapping groove 21 located on the outer side of the bottom of the midsole 2 and a wrapping strip 101 located on the edge of the top surface of the outsole 1. After being hot-pressed by a mold, the wrapping strip 101 forms an extension 102 that wraps and fixes the wrapping groove 21.
[0025] The excess portion of the bonding strip 101 will be cut off, such as... Figure 3 , 4 As shown.
[0026] To improve the stability of the connection, the outsole 1 and the midsole 2 are connected by adhesive bonding.
[0027] To distribute the pressure on the forefoot, the first reinforcing connecting strip 16 has a V-shaped structure. When walking, the V-shaped tip will first bite into loose ground, such as snow or gravel, while the wide toothed wall at the rear provides support, dispersing pressure and preventing sinking. On hard surfaces, the edges will increase the effective contact points.
[0028] For directional friction on the heel, the second reinforcing connecting strip 18 has a straight-line structure.
[0029] U-shaped grooves 11 and conical grooves 12 are respectively provided on the front and back of the sole of the slipper. The U-shaped grooves 11 and conical grooves 12, together with the corresponding first reinforcing connecting strips 16 and second reinforcing connecting strips 18, effectively disperse and support the positioning, preventing excessive local pressure. At the same time, the connection of the groove structure is strengthened to prevent the U-shaped grooves 11 and conical grooves 12 from cracking when subjected to strong torsional deformation. Example 2
[0030] For the sake of brevity, the parts that are the same as those in other embodiments will not be described again. The main description here is of the structure that is different from other embodiments of this utility model. In this application, the outsole 1 and the midsole 2 are connected by injection molding to facilitate processing.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A slipper sole resistant to cracking, characterized by: Its structure includes a base (1); The midsole (2) is connected to the top surface of the outsole (1); The connection between the outsole (1) and the midsole (2) is provided with an anti-cracking structure; The outsole (1) has a U-shaped groove (11) at the front of the bottom and a conical groove (12) at the heel. Both sides of the U-shaped groove (11) and the conical groove (12) are provided with a number of anti-slip protrusions (13) at intervals. The bottom surface of the anti-slip protrusions (13) is provided with at least one strip-shaped anti-slip groove (14). The inner side of the U-shaped groove (11) is connected with a number of first reinforcing connecting strips (16) from front to back. There is at least one first anti-slip protrusion (17) between every two first reinforcing connecting strips (16). The inner side of the conical groove (12) is connected with a number of second reinforcing connecting strips (18) from front to back. There is at least one second anti-slip protrusion (19) between every two second reinforcing connecting strips (18).
2. A slipper sole according to claim 1, characterized in that: The anti-slip protrusion (13) has a shoe upper connecting groove (15) that extends through to the top surface of the midsole (2).
3. The slipper sole according to claim 1, wherein: The anti-cracking structure includes a wrapping groove (21) located on the outer side of the bottom of the midsole (2) and a wrapping strip (101) located on the edge of the top surface of the outsole (1). After being hot-pressed by a mold, the wrapping strip (101) forms an extension (102) that wraps and fixes the wrapping groove (21).
4. The slipper sole according to claim 1, wherein: The outsole (1) and the midsole (2) are connected by one of the following methods: sewing, gluing, or injection molding.
5. The slipper sole according to claim 1, wherein: The first reinforcing connecting strip (16) has a V-shaped structure.
6. A slipper sole according to claim 1, wherein: The second reinforcing connecting strip (18) has a straight-line structure.