High frequency foam shoes
By dividing the protective sleeve layer and the high-frequency foam layer into multiple main blocks in the high-frequency foam shoe and thinning the thickness at the connection point to form a flexible hinge structure, the problem of the foam shoe being hard and unsuitable for cold weather is solved, achieving a balance between flexibility and warmth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN CHENGZHANG FOOTWEAR MATERIAL CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-06-05
Smart Images
Figure CN224320294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam shoes, and in particular to a high-frequency foam shoe. Background Technology
[0002] High-frequency foam shoes are a type of foam shoe that uses high-frequency foam technology to create the foam layer. This solves the problems of traditional foam's heaviness and susceptibility to aging, while also improving the product's lightweight nature and functionality through seamless welding technology. However, existing foam shoes have relatively limited functionality and are generally stiff, making them inconvenient for movement when the overall insulation layer is thickened; they also lack a thicker foam layer suitable for cold weather. Therefore, further improvements are needed. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a high-frequency foam shoe.
[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a high-frequency foam shoe, comprising: an insole and a shoe body; the core layer of the insole and the shoe body is a high-frequency foam layer;
[0005] The main body of the shoe has a cotton filling layer inside the high-frequency foam layer and a protective sleeve layer outside the high-frequency foam layer; the protective sleeve layer and the high-frequency foam layer are divided into several connected main blocks, and the thickness of the protective sleeve layer and the high-frequency foam layer at the connection of the connected main blocks is lower than the thickness of the main block.
[0006] Optionally, the protective sleeve layer is NBR or EPDM foamed rubber.
[0007] Optionally, the protective sleeve is an EVA sleeve.
[0008] Optionally, the protective sheath, the high-frequency cotton layer, and the cotton filling layer are separated by a fabric layer.
[0009] Optionally, the thickness of the connection point between the main blocks is less than half the thickness of the main blocks.
[0010] Optionally, the main body of the shoe is divided into a forefoot and a heel counter; the heel counter is cylindrical and used to wrap around the heel; the forefoot covers the instep and toes.
[0011] The forefoot is divided into several main sections in the front and back directions; the heel counter is divided into several main sections in the circumferential direction.
[0012] Optionally, a transition hole is provided at the transition between the shoe's forefoot and heel counter.
[0013] The beneficial effects of this utility model are as follows: by dividing the protective sleeve layer and the high-frequency foam layer into multiple main blocks and significantly thinning the thickness at the connection point (forming a flexible hinge structure), while ensuring thickened protection / insulation in key areas (main blocks), the shoe body can be bent freely in multiple directions, achieving a dynamic soft zone design. Even with the possibility of thickening and adding cotton, it still maintains a high degree of flexibility.
[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0016] Figure 1 This is a structural schematic diagram of the foam shoe of this utility model;
[0017] Figure 2 This is a cross-sectional view of the foam shoe of this utility model.
[0018] Explanation of key component symbols:
[0019] 10. Insole; 20. Main body of the shoe; 21. Forefoot; 22. Heel counter; 23. Transition perforation; 30. High-frequency foam layer; 31. Main section; 40. Cotton filling layer; 50. Protective cover layer. Detailed Implementation
[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0021] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.
[0023] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0024] Example
[0025] Reference Figure 1 and Figure 2 The present invention proposes a high-frequency foam shoe, comprising: an insole 10 and a shoe body 20; the core layer of both the insole 10 and the shoe body 20 is a high-frequency foam layer 30;
[0026] The main body 20 of the shoe has a cotton filling layer 40 inside the high-frequency foam layer 30 and a protective sleeve layer 50 outside the high-frequency foam layer 30. The protective sleeve layer 50 and the high-frequency foam layer are divided into several connected main blocks 31. The thickness of the protective sleeve layer 50 and the high-frequency foam layer at the connection of the connected main blocks 31 is lower than the thickness of the main block 31.
[0027] In this invention, the protective sleeve layer 50 and the high-frequency foam layer 30 are divided into multiple main blocks 31, and the thickness is significantly reduced at the connection (forming a flexible hinge structure). While ensuring thickened protection / insulation in the key areas (main blocks 31), the shoe body can be bent freely in multiple directions, achieving a dynamic soft zone design. Even with the option to thicken and add cotton, it still maintains high flexibility.
[0028] In some embodiments, the protective sleeve 50 is made of NBR or EPDM foamed rubber. NBR / EPDM foamed rubber offers excellent weather resistance, high elasticity retention at low temperatures, and a high drainage rate due to its microporous structure.
[0029] In some embodiments, the protective sleeve layer 50 is an EVA sheath. With a density of only 0.02 g / cm³, it achieves a lightweight design, supports environmental protection requirements for recycling, and co-moldes with the foam core layer during high-frequency welding, exhibiting high peel strength.
[0030] In some embodiments, the protective sleeve layer 50, the high-frequency cotton layer, and the cotton filling layer 40 are separated by a fabric layer. The fabric layer, such as a warp-knitted spacer fabric, serves as a functional isolation layer to solve the adhesion problem of the multi-layer composite connection.
[0031] Preferably, the thickness at the connection point of the connected main blocks 31 is less than half the thickness of the main block 31. This allows for high bending freedom and high deformation rate in the hinge area, enabling biomimetic joint-like motion.
[0032] In this embodiment, the main body 20 of the shoe is divided into a forefoot 21 and a heel counter 22; the heel counter 22 is cylindrical and is used to wrap the heel area; the forefoot 21 is used to cover the instep to the toes; the forefoot 21 has several main sections 31 in the front-to-back direction; the heel counter 22 has several main sections 31 in the circumferential direction. The forefoot 21 (longitudinal section) and the heel counter 22 (circular section) are designed separately: the longitudinal section of the forefoot 21 matches the metatarsal bending trajectory, which facilitates bending deformation when moving forward, and the circular section of the heel counter 22 provides centripetal wrapping force.
[0033] Furthermore, a transition perforation 23 is provided at the transition point between the forefoot vamp 21 and the heel counter 22. The perforation area expands when the ankle bends, achieving a stress-relieving effect.
[0034] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.
Claims
1. A high-frequency foam shoe, characterized in that, include: Insole (10) and shoe body (20); the core layer of both the insole (10) and the shoe body (20) is a high-frequency foam layer (30); The main body of the shoe (20) has a cotton filling layer (40) on the inner side of the high-frequency foam layer (30) and a protective sleeve layer (50) on the outer side of the high-frequency foam layer (30). The protective sleeve layer (50) and the high-frequency cotton layer are divided into several connected main blocks (31). The thickness of the protective sleeve layer (50) and the high-frequency cotton layer at the connection of the connected main blocks (31) is lower than the thickness of the main block (31).
2. The high-frequency foam shoe according to claim 1, characterized in that: The protective sleeve (50) is made of NBR or EPDM foamed rubber.
3. The high-frequency foam shoe according to claim 1, characterized in that: The protective sleeve (50) is an EVA sleeve.
4. The high-frequency foam shoe according to claim 1, characterized in that: The protective sleeve layer (50), the high-frequency cotton layer and the cotton filling layer (40) are separated by a fabric layer.
5. The high-frequency foam shoe according to claim 1, characterized in that: The thickness of the connection point between the main blocks (31) is less than half the thickness of the main blocks (31).
6. The high-frequency foam shoe according to claim 1, characterized in that: The main body of the shoe (20) is divided into a forefoot (21) and a heel sleeve (22); the heel sleeve (22) is cylindrical and is used to wrap the heel area; the forefoot (21) is used to cover the instep to the toes; The forefoot (21) is divided into several main sections (31) in the front and back directions; the heel counter (22) is divided into several main sections (31) in the circumferential direction.
7. The high-frequency foam shoe according to claim 6, characterized in that: The transition hole (23) is provided at the transition between the shoe front (21) and the shoe back (22).