3D printed composite midsole running shoe

Abstract

The utility model relates to the technical field of shoes and clothes, specifically relates to a 3D printing composite midsole running shoes, including composite midsole and sewing fixed on the upper surface of composite midsole vamp layer, the vamp layer is integrally formed with the access on the corresponding position of human body heel, the composite midsole includes the foamed layer with the sewing fixed connection of vamp layer and the 3D printing layer of hot melt fixed in the lower surface of foamed layer.

Description

Technical Field

[0001] This utility model relates to the field of footwear and apparel technology, specifically to a 3D-printed composite midsole running shoe. Background Technology

[0002] Running shoes are functional footwear specifically designed for running. They are not just ordinary athletic shoes, but professional equipment optimized through special structures and technologies to address the stress characteristics, movement patterns, and potential injury risks of the feet during running. They consist of a midsole, outsole, and upper. During running, running shoes provide powerful cushioning to the feet through the midsole, protecting joints and providing sufficient support to prevent excessive pronation of the feet. Some running shoes, while ensuring the above functions, also achieve lightweight design, reducing the burden on the feet and making running safer, more efficient, and more comfortable.

[0003] Although the aforementioned existing technologies can solve the corresponding technical problems, they still have certain drawbacks: the midsoles of existing running shoes are mostly made of foam materials. If the wearer is heavy, after a period of use, the long-term trampling of the feet can easily cause the foam material midsole to become compacted, resulting in increased hardness, significantly reduced cushioning, and shorter service life. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a 3D-printed composite midsole running shoe with a long lifespan and good cushioning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a 3D printed composite midsole running shoe, comprising a composite midsole and an upper layer sewn and fixed to the upper surface of the composite midsole, wherein the upper layer is integrally formed with an opening at the corresponding position of the heel of the human foot, and the composite midsole comprises a foam layer sewn and fixedly connected to the upper layer and a 3D printed layer heat-fused and fixed to the lower surface of the foam layer.

[0006] A further improvement is that an outer bottom layer is fixedly provided on the lower surface of the 3D printed layer.

[0007] A further improvement is that a shoe tongue is sewn and fixed onto the shoe upper layer.

[0008] A further improvement is that shoelaces are threaded onto the upper layer at the corresponding position above the tongue.

[0009] A further improvement is that a breathable mesh layer is integrally formed on the shoe upper layer.

[0010] A further improvement is that a heel stabilizer is provided on the side wall of the upper layer at the corresponding position of the heel of the human foot.

[0011] A further improvement is that an outwardly protruding extension block is integrally formed on the sidewall of the foam layer.

[0012] A further improvement is that the upper layer is also provided with a lifting ring on the rear side of the corresponding position on the heel of the human foot.

[0013] A further improvement is that the 3D printed layer is composed of several hexagonal honeycomb frame structures.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When worn, this utility model provides cushioning for the foot through a composite midsole. The foam layer on the upper part of the composite midsole directly contacts the foot when stepped on, providing a soft foam cushioning experience and a flat stepping feel. The 3D printed layer composed of a hexagonal honeycomb frame structure below the foam layer absorbs the impact force generated by the foot stepping on through the three-dimensional frame structure, and quickly recovers after the pressure disappears. The frame structure cushioning is not easily crushed and compacted during long-term use, and can maintain high cushioning performance for a long time. Thus, the lifespan of the running shoe is longer without affecting the wearing experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the running shoe of this utility model. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] See Figure 1As shown, the technical solution adopted in this specific embodiment is: a 3D-printed composite midsole running shoe, including a composite midsole and an upper layer 1 sewn and fixed to the upper surface of the composite midsole. The upper layer 1 has an integrally formed insertion opening 2 at the corresponding position of the heel of the human foot. The composite midsole includes a foam layer 3 sewn and fixedly connected to the upper layer 1 and a 3D-printed layer 4 heat-fused and fixed to the lower surface of the foam layer 3. The 3D-printed layer 4 is composed of several hexagonal honeycomb frame structures. In use, the foot is inserted between the composite midsole and the upper layer 1 through the insertion opening 2. After the foot is inserted, the bottom surface of the foot will come into contact with the relatively flat surface of the foam layer 3, and the foam will expand. Layer 3 provides cushioning and a smooth feel from the foam material, thus overcoming the prickly feeling of the 3D-printed midsole and making it more comfortable to wear. At the same time, a 3D-printed layer 4 is also heat-fused and fixed under the foam layer 3. The 3D-printed layer 4 is composed of multiple hexagonal honeycomb frame structures. The three-dimensional frame structure composed of multiple hexagonal honeycomb frame structures absorbs the impact generated by the foot stepping and quickly recovers after the pressure is removed through the elasticity of the hexagonal honeycomb frame. The hexagonal honeycomb frame structure cushioning is not easily crushed and compacted during long-term use, and can maintain high cushioning for a long time. Therefore, without affecting the wearing experience, the lifespan of the running shoes is extended.

[0019] The lower surface of the 3D printed layer 4 is also fixed with an outer bottom layer 5, which is made of rubber material. This helps to improve the friction between the shoe and the ground, thereby making the shoe more slip-resistant and improving its wear resistance.

[0020] A shoe tongue 13 is also sewn onto the upper layer 1, which helps to improve the wrapping of the upper layer 1 around the instep and enhance the wearing comfort.

[0021] A shoelace 12 is threaded on the upper layer 1 at the corresponding position above the tongue 13, which is conducive to adjusting the tightness of the upper layer 1 in covering the foot by tightening or loosening the shoelace 12, thereby making the upper layer 1 have a larger range of adjustment in terms of fit.

[0022] A breathable mesh layer 11 is integrally molded on the upper layer 1, which helps to improve the breathability of the upper layer 1 and makes it less likely for the feet to feel stuffy when wearing it for sports.

[0023] The upper layer 1 has a heel stabilizer 14 on the side wall corresponding to the heel of the human foot, which helps to improve the stability of the heel position of the shoe. When the heel lands during sports, it is not easy to cause lateral tilting, reducing the probability of sports injuries.

[0024] The foam layer 3 has an integrally formed outwardly protruding extension block 31 on its sidewall, which helps to improve the lateral stability of the foam layer 3. During lateral movement, it is less likely to roll over and reduce the probability of sports injuries.

[0025] The upper layer 1 is also equipped with a pull loop 15 on the back side of the corresponding position of the heel of the human foot, which makes it easier to put on the shoes.

[0026] The working principle of this invention is as follows: When using this invention, the foot is inserted through the inlet 2 between the composite midsole and the upper layer 1. After insertion, the sole of the foot comes into contact with the relatively flat foam layer 3, which provides cushioning and a smooth feel, thus overcoming the prickly feeling of a fully 3D-printed midsole and making it more comfortable to wear. At the same time, a 3D-printed layer 4 is also heat-fused and fixed below the foam layer 3. The 3D-printed layer 4 is composed of multiple hexagonal honeycomb frame structures. The three-dimensional frame structure composed of multiple hexagonal honeycomb frame structures absorbs the impact force generated by the foot's stepping and quickly recovers after the pressure is removed through the elasticity of the hexagonal honeycomb frame. The hexagonal honeycomb frame structure cushioning is not easily collapsed or compacted during long-term use and can maintain high cushioning performance for a long time. Therefore, the lifespan of the running shoe is extended without affecting the wearing experience.

[0027] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A 3D-printed composite midsole running shoe, comprising a composite midsole and an upper layer (1) sewn and fixed to the upper surface of the composite midsole, wherein the upper layer (1) has an integrally formed insertion opening (2) at a corresponding position on the heel of the human foot, characterized in that: The composite midsole includes a foam layer (3) that is sewn and fixedly connected to the upper layer (1) and a 3D printed layer (4) that is heat-fused and fixed to the lower surface of the foam layer (3).

2. The 3D-printed composite midsole running shoe according to claim 1, characterized in that: The lower surface of the 3D printed layer (4) is also fixedly provided with an outer bottom layer (5).

3. The 3D-printed composite midsole running shoe according to claim 1, characterized in that: A shoe tongue (13) is also sewn onto the upper layer (1).

4. A 3D-printed composite midsole running shoe according to claim 3, characterized in that: The shoelaces (12) are threaded through the upper layer (1) at the corresponding position above the tongue (13).

5. A 3D-printed composite midsole running shoe according to claim 1, characterized in that: A breathable mesh layer (11) is integrally formed on the upper layer (1).

6. A 3D-printed composite midsole running shoe according to claim 1, characterized in that: The upper layer (1) has a heel stabilizer (14) on the side wall corresponding to the heel of the human foot.

7. A 3D-printed composite midsole running shoe according to claim 1, characterized in that: The foamed layer (3) has an integrally formed outwardly protruding extension block (31) on its sidewall.

8. A 3D-printed composite midsole running shoe according to claim 1, characterized in that: The upper layer (1) is also provided with a lifting ring (15) on the rear side of the corresponding position of the heel of the human foot.

9. A 3D-printed composite midsole running shoe according to claim 1, characterized in that: The 3D printed layer (4) is composed of several hexagonal honeycomb frame structures.

Images