Metal support and sports shoe sole provided with the metal support in the middle waist
By using metal materials with a density of less than 5g/cm³ and metal support components with a hollow mesh design, combined with pre-embedded injection molding and connecting wires, the problem of complex mid-waist support design and increased thickness in sports shoes has been solved, achieving high strength, lightweight, and improved cushioning performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CAS VALUE (FUJIAN) TECHNOLOGY CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-05-29
AI Technical Summary
Existing midfoot support designs in athletic shoes suffer from complex manufacturing processes and high costs, or require increased thickness to match support needs, resulting in decreased cushioning performance.
The metal support component is made of metal material with a density of less than 5g/cm³, combined with a hollow mesh design, and is molded into the sole by pre-embedded injection molding. The support component body is set as a double-layer structure or has connecting threads to enhance the connection, and is indirectly connected to the plastic material of the sole by the connecting threads.
It achieves high-strength, lightweight midfoot support, simplifies the manufacturing process, enhances the support and cushioning performance of the sole, and maintains the lightweight and connection stability of the sole.
Smart Images

Figure CN224291376U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of footwear, and more particularly to metal support components and athletic shoe soles in which the metal support component is located in the midsection. Background Technology
[0002] Midfoot support in athletic shoes is a key design element for improving athletic performance, especially in sports requiring frequent changes of direction, sudden stops, or high impact, such as basketball and tennis. Currently, there are two main solutions for midfoot support in athletic shoes: one is a carbon fiber plate, which is made through multi-layer carbon fiber lamination and high-temperature, high-pressure molding, featuring high strength and lightweight characteristics, but the production process is complex and time-consuming; the other is a rigid TPU plate, produced through injection molding, which is simple to process but requires increased thickness to match the support requirements, potentially leading to excessive sole thickness or reduced cushioning performance. Utility Model Content
[0003] In order to enable the setting of high-strength and lightweight mid-waist support in sports shoes with a relatively simple manufacturing process, this application provides a metal support component and a sports shoe sole with the metal support component in the mid-waist.
[0004] The metal support component and the sports shoe sole with the metal support component in the midsection provided in this application adopt the following technical solution:
[0005] A metal support component includes a support component body, the support component body comprising a forefoot extension, a heel extension, and a mid-waist reinforcement, the mid-waist reinforcement being located between the forefoot extension and the heel extension; the density of the support component body is less than 5 g / cm³, and the support component body has perforated mesh.
[0006] By adopting the above technical solution, the metal support component is pre-embedded in the plastic material of the shoe sole through injection molding. When the shoe sole bends during use, the mid-waist reinforcement of the support component undergoes adaptive bending deformation, reinforcing the mid-waist area of the sole and making it less prone to cracking during use. The metal support component is made of a metal material with a density of less than 5g / cm³ and features a perforated mesh, which reduces its thickness while ensuring structural strength, thus contributing to the lightweight design of the support component. The processing technology of the perforated metal structure is easier to implement than that of multi-layered carbon fiber materials.
[0007] Optionally, the heel extension is provided with side reinforcements that bend upwards on both sides.
[0008] By adopting the above technical solution, the heel extension is bent upward on both sides to form side reinforcements, which helps to strengthen the support for the athlete's heel.
[0009] Optionally, the support body is configured as a double-layer structure, and the rear waist reinforcement and rear heel extension of the support body are configured as hollow structures.
[0010] By adopting the above technical solution, the support body is set as a double-wall structure, which can increase the support strength and cushioning performance of the sole, and increase the connection strength between the support body and the plastic material of the sole.
[0011] Optionally, the support body is provided with connecting wires, and the support body is provided with a plurality of through holes for passing the connecting wires. The connecting wires pass through the through holes one after another, and the two ends of the connecting wires are respectively fixed to the surface of the support.
[0012] By adopting the above technical solution, the connecting wires are threaded through the threading holes on the support body. When the support body is wrapped inside the plastic material of the sole by pre-embedded injection molding, the plastic material of the sole wraps the connecting wires, so that the plastic material of the sole and the support body are indirectly connected through the connecting wires, thereby strengthening the connection between the plastic material of the sole and the metal support.
[0013] Optionally, each end of the connecting thread is provided with a limiting knot, the diameter of which is larger than the diameter of the thread hole.
[0014] By adopting the above technical solution, the limiting knot and the threading hole through which the connecting thread finally passes form a locking effect, so that the connection between the connecting thread and the support body remains stable.
[0015] Optionally, the connecting wire includes a metal core and a plastic outer layer wrapping the metal core.
[0016] By adopting the above technical solution, the metal core can ensure the strength of the connecting wires, and the plastic outer layer can enhance the bonding force between the connecting wires and the plastic material of the shoe sole.
[0017] Optionally, the connecting wire is in a pre-tensioned state.
[0018] By adopting the above technical solution, the connecting wire is in a pre-tensioned state, which can ensure that the connecting wire is taut, thereby ensuring the connection strength between the connecting wire and the support body.
[0019] The outsole of an athletic shoe with a metal support in the midfoot includes the outsole body and any of the metal support components described above, wherein the metal support component is pre-embedded in the outsole body by injection molding.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. The metal support components are made of a material with a density of less than 5 g / cm³ and feature a perforated mesh. This design allows for a reduction in thickness while maintaining structural strength, thus contributing to the lightweighting of the support components. The fabrication process for the perforated metal structure is also easier to implement than that for multi-layered carbon fiber materials.
[0022] 2. When the support body is embedded in the plastic material of the sole by pre-embedded injection molding, the plastic material of the sole wraps the connecting wires, so that the plastic material of the sole and the support body are indirectly connected through the connecting wires, thereby strengthening the connection between the plastic material of the sole and the metal support. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the metal support component in Example 1.
[0024] Figure 2 This is a schematic diagram of the metal support component in Example 2.
[0025] Figure 3 This is a schematic diagram of the metal support component in Example 3.
[0026] Figure 4 This is a schematic diagram of the metal support component in Example 4.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Support body; 11. Mid-waist reinforcement; 12. Forefoot extension; 13. Heel extension; 14. Hollowed-out mesh; 15. Threading hole; 2. Connecting thread; 21. Limiting knot; 22. Longitudinal section; 23. Lateral section. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0030] Example 1
[0031] This application discloses a metal support member. (Refer to...) Figure 1 The metal support component includes a support body 1, which includes a mid-waist reinforcement 11. The mid-waist reinforcement 11 extends to one side to form a forefoot extension 12, and extends to the opposite side to form a heel extension 13. The mid-waist reinforcement 11 is located between the forefoot extension 12 and the heel extension 13. The width of the mid-waist reinforcement 11 is smaller than the widths of the forefoot extension 12 and the heel extension 13.
[0032] The material of the support body 1 is a metal material with a density of less than 5g / cm³, such as titanium alloy or magnesium-aluminum alloy. The support body 1 is formed by 3D printing and has hollow mesh 14.
[0033] In this embodiment, the support body 1 is specifically applied to basketball shoes. The heel extension 13 of the support body 1 has side reinforcements that are bent upward on both sides. The side reinforcements are used to reinforce the heel area of the sole and can enhance the support of the sole for the athlete's heel.
[0034] This embodiment also discloses a sports shoe sole with a metal support in the midfoot, including the sole body and the aforementioned metal support, wherein the metal support is embedded in the sole body by injection molding.
[0035] The implementation principle of the metal support component and the mid-waist of the athletic shoe sole in this embodiment is as follows: the metal support component is pre-embedded in the plastic material of the sole by injection molding, and the plastic material forms the sole body after molding. When the sole bends during use, the mid-waist reinforcement 11 of the support component body 1 undergoes adaptive bending deformation, and the mid-waist reinforcement 11 strengthens the mid-waist area of the sole, making the mid-waist area of the sole less prone to cracking during use. The metal support component is made of a metal material with a density of less than 5g / cm³ and has perforated mesh 14, which can reduce its thickness while ensuring its structural strength, thus facilitating the lightweighting of the support component. The processing technology of the perforated metal structure is easier to implement than that of multi-layered carbon fiber materials.
[0036] Example 2
[0037] Reference Figure 2 The difference between this embodiment and Embodiment 1 is that the support body 1 is configured with a double-layer structure, and the rear waist reinforcement and rear heel extension 13 of the support body 1 are configured with hollow structures, with the holes in the hollow structures facing up and down. The double-layer structure of the support gives the metal support a three-dimensional structure, making the metal support have stronger cushioning performance.
[0038] Example 3
[0039] The difference between this embodiment and Embodiment 1 is that the support body 1 is provided with connecting wires 2, which include a metal core wire and a plastic outer layer covering the metal core wire. The support body 1 is provided with a plurality of threading holes 15 for threading the connecting wires 2. The connecting wires 2 are connected and pass through the threading holes 15. The diameter of the threading holes 15 is 1.1 to 1.2 times the diameter of the connecting wires 2. Each end of the connecting wire 2 is provided with a limiting knot 21, the diameter of which is larger than the diameter of the threading hole 15.
[0040] In this embodiment, multiple connecting threads 2 are provided, and they extend along the length of the support body 1. In another embodiment, multiple threads can be provided in a crisscross pattern.
[0041] With the connecting thread 2 in a pre-tensioned state, the limiting knot 21, under the tension of the connecting thread 2, engages with the thread hole 15 through which the connecting thread 2 finally passes, thus fixing both ends of the connecting thread 2 to the support body 1. To strengthen the connection between the limiting knot 21 and the support body 1, the limiting knot 21 can be bonded to the surface of the support body 1.
[0042] The implementation principle of this embodiment is as follows: the connecting wire 2 passes through the thread hole 15 on the support body 1. When the support body 1 is pre-embedded and molded inside the plastic material of the sole, the plastic material of the sole wraps around the connecting wire 2, so that the plastic material of the sole and the support body 1 are indirectly connected through the connecting wire 2, thereby strengthening the connection between the plastic material of the sole and the metal support. When the connecting wire 2 extends longitudinally, it can enhance the strength of the metal support.
[0043] Example 4
[0044] Reference Figure 4 The difference between this embodiment and embodiment 3 is that the connecting thread 2 is a single thread extending along a serpentine path. The connecting thread 2 forms a longitudinal segment 22 and a transverse segment 23 on the support body, wherein the longitudinal segment 22 is arranged along the length direction of the support body. The connecting thread 2 is provided with a plurality of limiting knots 21, which are located at the ends of the connecting thread 2 or at the corners between the longitudinal segment 22 and the transverse end. The particle size of the limiting knots 21 is larger than the diameter of the thread hole 15.
[0045] It is worth mentioning that, if necessary, a limiting knot 21 can be added, so that a limiting knot 21 is set at each node after the connecting thread 2 passes through the thread hole 15, and the limiting knot 21 is used to enhance the connection between the connecting thread 2 and the injection molding material of the shoe sole.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A metal support component, characterized in that: The support body (1) includes a forefoot extension (12), a heel extension (13) and a mid-waist reinforcement (11), the mid-waist reinforcement (11) being located between the forefoot extension (12) and the heel extension (13); the density of the support body (1) is less than 5 g / cm³, and the support body (1) has a perforated mesh (14).
2. The metal support member according to claim 1, characterized in that: The heel extension (13) has side reinforcements that bend upwards on both sides.
3. The metal support member according to claim 1, characterized in that: The support body (1) is configured as a double-layer structure, and the rear waist reinforcement and the rear heel extension (13) of the support body (1) are configured as hollow structures.
4. The metal support member according to claim 1, characterized in that: The support body (1) is provided with connecting wires (2), and the support body (1) is provided with several thread holes (15) for threading the connecting wires (2). The connecting wires (2) are connected and pass through the thread holes (15). The two ends of the connecting wires (2) are respectively fixed to the surface of the support.
5. The metal support member according to claim 4, characterized in that: The two ends of the connecting thread (2) are respectively provided with limiting knots (21), and the particle size of the limiting knots (21) is larger than the diameter of the thread hole (15).
6. The metal support member according to claim 4, characterized in that: The connecting wire (2) includes a metal core wire and a plastic outer layer that wraps the metal core wire.
7. The metal support member according to claim 4, characterized in that: The connecting wire (2) is in a pre-tensioned state.
8. A sports shoe sole with a metal support component in the midsection, characterized in that: The shoe includes a sole body and a metal support member as described in any one of claims 1-7, wherein the metal support member is pre-embedded in the sole body by injection molding.