A type of water-resistant composite sole leather shoe
By injecting a waterproof sealing layer into the filling groove of the shoe sole, the problem of water seepage in traditional leather shoes is solved, achieving a seamless, non-porous, high-strength waterproof effect, and improving the waterproof performance and comfort of leather shoes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGJIA MAIJIADA SHOE IND MFG CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional leather shoes are prone to water seepage at the junction of the sole and upper, causing discomfort when walking on wet surfaces.
A waterproof sealing layer is filled into the insole groove using injection molding, forming a seamless, non-porous, high-strength waterproof sealing structure. Combined with the chemical stability and mechanical properties of PU material, the waterproof performance is enhanced.
It achieves a seamless connection between the upper and the sole, improving waterproof performance, enhancing the comfort and durability of leather shoes, while maintaining breathability.
Smart Images
Figure CN224268434U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of leather shoe technology, and more particularly to a leather shoe with a water-resistant composite sole. Background Technology
[0002] Leather shoes are common daily necessities. Traditional leather shoes rely on stitching processes (such as Goodyear and Blake) or glue to connect the upper and sole. The stitching holes and glue seams are potential pathways for water seepage. When users wear leather shoes and walk on roads with standing water, the water on the outside of the shoes may seep into the shoe cavity through these seepage paths, causing discomfort to the user. Utility Model Content
[0003] This application provides a water-resistant composite sole leather shoe, which can improve the technical problem in related technologies where the connection between the sole and the upper of leather shoes is easily soaked with water.
[0004] This application provides a water-resistant composite sole leather shoe, including: a sole and an upper; the sole includes an outsole, a waterproof sealing layer, and an insole, the outsole has a filling groove, the insole is disposed inside the upper, the edge of the upper away from the shoe opening is folded inward and fixedly connected to one side of the insole, the insole and the edge of the upper away from the shoe opening are located inside the filling groove, the waterproof sealing layer is filled inside the filling groove and located between the outsole and the insole, and the waterproof sealing layer is bonded to the outsole, the upper, and the insole.
[0005] The technical solutions described above in this application embodiment have at least the following technical effects: a seamless, non-porous, and high-strength waterproof sealing layer is formed at the connection between the shoe upper and the sole, achieving a good water-proof effect.
[0006] In some embodiments, the waterproof sealant is made of PU material.
[0007] In some embodiments, an insole is provided inside the upper, and the insole is wrapped with an activated carbon layer.
[0008] In some embodiments, the inside of the seams on the shoe upper is coated with waterproof sealant.
[0009] In some embodiments, the upper includes an outer layer and an inner lining, the inner lining being fixedly disposed inside the outer layer.
[0010] In some embodiments, a waterproof and breathable membrane is provided between the outer layer and the inner lining. Attached Figure Description
[0011] Figure 1 A schematic diagram of the overall structure of a water-resistant composite sole leather shoe provided in an embodiment of this application;
[0012] Figure 2 A schematic diagram of the exploded structure of a water-resistant composite sole leather shoe provided in this application embodiment. Figure 1 ;
[0013] Figure 3 A schematic diagram of the exploded structure of a water-resistant composite sole leather shoe provided in this application embodiment. Figure 2 ;
[0014] Figure 4 A cross-sectional view of a water-resistant composite sole leather shoe provided in an embodiment of this application;
[0015] Figure 5 for Figure 4 Enlarged view of section A in the middle.
[0016] The following are the labeling elements in the figure:
[0017] 1. Outsole; 11. Outsole; 111. Filling groove; 12. Waterproof sealing layer; 13. Insole; 2. Upper; 3. Insole; 31. Activated carbon layer. Detailed Implementation
[0018] Traditional leather shoes rely on stitching processes (such as Goodyear and Blake) or glue to connect the upper and sole. The stitching holes and glue seams are potential pathways for water seepage. When users wear leather shoes and walk on wet roads, water on the outside of the shoes may seep into the shoe cavity through these seepage paths, causing discomfort to the user.
[0019] Based on this, in order to improve the problem that the connection between the sole and the upper of leather shoes in related technologies is prone to water immersion, the embodiments of this application provide the following solutions.
[0020] The following combination Figures 1-5 This application will be described in further detail.
[0021] This embodiment discloses a waterproof composite sole 1 for leather shoes, including: a sole 1 and an upper 2; the sole 1 includes an outsole 11, a waterproof sealing layer 12 and an insole 13, the outsole 11 has a filling groove 111, the insole 13 is disposed inside the upper 2, the edge of the upper 2 away from the shoe opening is folded inward and fixedly connected to one side of the insole 13, the insole 13 and the edge of the upper 2 away from the shoe opening are located inside the filling groove 111, the waterproof sealing layer 12 is filled inside the filling groove 111 and is located between the outsole 11 and the insole 13, and the waterproof sealing layer 12 is bonded to the outsole 11, the upper 2 and the insole 13.
[0022] As can be seen from the above, the waterproof composite sole leather shoe provided in this application embodiment can, during the production of leather shoes, fill the waterproof sealing layer 12 into the filling groove 111 through injection molding. First, the outsole 11 and the upper 2 with the shoe last inserted are placed into the mold, so that the insole 13 and the outsole 11 are kept at a certain distance. Then, the hot-melt filling material is injected into the filling cavity, so that the filling material fully wraps the gap between the insole 13 and the outsole 11 and the connection between the insole 13 and the upper 2. Then, the mold is rapidly cooled to cool and solidify the filling material. The filling material is firmly bonded to the outsole 11, the insole 13 and the upper 2. In this way, a seamless, non-porous, high-strength waterproof sealing layer 12 is formed at the connection between the upper 2 and the outsole 1, achieving a good waterproof effect.
[0023] In some embodiments, the waterproof sealant 12 is made of PU material.
[0024] With this design, the PU material has a mature injection molding process, as well as good chemical stability, resilience and mechanical properties. While ensuring the waterproof sealing layer 12's water-proof effect, it can also improve the comfort and durability of leather shoes.
[0025] Optionally, in some embodiments, please refer to Figure 4 and Figure 5 The shoe upper 2 has an insole 3 inside, and the insole 3 is wrapped with an activated carbon layer 31.
[0026] With this design, the activated carbon layer 31 inside the insole 3 has good adsorption properties for sweat and odor, keeping the user's feet dry and clean. The user can replace the insole 3 regularly to maintain its adsorption effect on sweat and odor.
[0027] Optionally, in some embodiments, the inside of the seam of the upper 2 is coated with waterproof sealant.
[0028] With this design, the waterproof sealant can penetrate into the thread hole at the seam of the upper 2, thereby forming a waterproof adhesive layer on the inside of the upper 2. This prevents moisture from the outside of the shoe from seeping into the shoe cavity through the seam of the upper 2, thus enhancing the waterproof performance of the shoe.
[0029] In some embodiments, the upper 2 includes an outer layer and an inner lining, with the inner lining fixedly disposed on the inside of the outer layer.
[0030] With this design, the outer layer of the upper 2 is made of leather, while the inner layer can be made of various fabrics with moisture-wicking and odor-resistant functions, which can improve the comfort of leather shoes.
[0031] Optionally, in some embodiments, a waterproof and breathable membrane is provided between the outer layer and the inner lining.
[0032] With this design, the waterproof and breathable membrane is made of ePTFE material, which has breathable properties. It allows sweat to pass through the shoe cavity and escape, while blocking liquid water from seeping into the shoe cavity from the outside. This improves the waterproof performance of the upper 2 while ensuring the breathability of the upper 2.
[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A water-resistant composite sole leather shoe, characterized in that, include: Sole (1); as well as The shoe upper (2) and the shoe sole (1) include an outsole (11), a waterproof sealing layer (12) and an insole (13). The outsole (11) has a filling groove (111). The insole (13) is located inside the shoe upper (2). The edge of the shoe upper (2) away from the shoe opening is folded inward and fixedly connected to one side of the insole (13). The insole (13) and the edge of the shoe upper (2) away from the shoe opening are located inside the filling groove (111). The waterproof sealing layer (12) is filled inside the filling groove (111) and located between the outsole (11) and the insole (13). The waterproof sealing layer (12) is bonded to the outsole (11), the shoe upper (2) and the insole (13).
2. The waterproof composite sole leather shoe according to claim 1, characterized in that: The waterproof sealing layer (12) is made of PU material.
3. The waterproof composite sole leather shoe according to claim 1, characterized in that: The insole (3) is provided inside the shoe upper (2), and the insole (3) is wrapped with an activated carbon layer (31).
4. The waterproof composite sole leather shoe according to claim 1, characterized in that: Waterproof sealant is applied to the inside of the seam of the shoe upper (2).
5. A water-resistant composite sole leather shoe according to claim 1, characterized in that: The shoe upper (2) includes an outer layer and an inner lining, with the inner lining fixedly disposed on the inner side of the outer layer.
6. A water-resistant composite sole leather shoe according to claim 5, characterized in that: A waterproof and breathable membrane is provided between the outer layer and the inner lining.