Low-density ultralight sole

Abstract

The utility model relates to the technical field of shoe soles, and particularly discloses a low-density ultralight shoe sole, which sequentially comprises an upper sole, a lower sole, a lower sole and a sole body from top to bottom, and the upper sole is made of polyurethane and is provided with a first mounting groove; the first insole is made of carbon fibers and comprises a first carbon plate, a second carbon plate and a connecting plate, the connecting plate is located between the first carbon plate and the second carbon plate and connected with the first carbon plate and the second carbon plate, and the first insole is fixedly embedded in the first mounting groove; the second insole is made of EVA (Ethylene Vinyl Acetate); and the outsole is made of rubber. The utility model solves the problem that the traditional polyurethane sole is easy to break or crack when being subjected to repeated stress or impact.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, and in particular to a low-density ultralight shoe sole. Background Technology

[0002] In the field of shoe sole manufacturing, polyurethane is widely used due to its excellent elasticity and flexibility. However, polyurethane also has some significant drawbacks; it is prone to breakage or cracking when subjected to repeated stress or impact. This makes polyurethane soles susceptible to damage after high-intensity sports activities or prolonged use, affecting the overall performance and lifespan of the sole. Utility Model Content

[0003] To address the problem that traditional polyurethane shoe soles are prone to breakage or cracking under repeated stress or impact, this invention provides a low-density, ultralight shoe sole.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An embodiment of this utility model provides a low-density ultralight shoe sole, comprising, from top to bottom:

[0006] The upper sole is made of polyurethane and has a first mounting groove;

[0007] The first midsole is made of carbon fiber and includes a first carbon plate, a second carbon plate, and a connecting plate. The connecting plate is located between the first carbon plate and the second carbon plate and is connected to the first carbon plate and the second carbon plate respectively. The first midsole is embedded in the first mounting groove.

[0008] The second midsole is made of EVA.

[0009] Outsole, the outsole material is rubber.

[0010] According to some embodiments of the present invention, the first carbon plate and the second carbon plate are both provided with a forefoot portion, an arch portion and a heel portion that are connected as one unit along the front-back direction of the sole, and the connecting plate is connected to the forefoot portion of the first carbon plate and the second carbon plate respectively.

[0011] According to some embodiments of the present invention, the arch portion of the first carbon plate and the arch portion of the second carbon plate protrude toward each other.

[0012] According to some embodiments of the present invention, the forefoot portion is further provided with a groove, the groove being located at the front end of the sole, and the connecting plate being located at the rear end of the groove.

[0013] According to some embodiments of the present invention, the second insole includes a second mounting groove for mounting the outsole.

[0014] According to some embodiments of the present invention, the outer bottom includes a rubber sheet that mates with the second mounting groove.

[0015] According to some embodiments of the present invention, the rubber sheet is multiple pieces, and the second mounting groove is also provided with multiple pieces, with the multiple rubber sheets respectively fixed in the second mounting groove.

[0016] According to some embodiments of the present invention, the rubber sheet is provided with anti-slip protrusions at intervals.

[0017] This invention offers at least the following advantages: The sole design employs a layered structure. The polyurethane upper has the advantage of low density, the carbon fiber first midsole has the advantages of being lightweight and high-strength, the EVA second midsole has the advantages of being lightweight and providing good cushioning, and the rubber outsole has the advantage of good wear resistance. The first midsole is composed of two carbon fiber plates connected by a connecting plate. The carbon fiber material strengthens the first midsole, thereby significantly improving the overall structural strength of the sole. This invention not only solves the problem of polyurethane's tendency to break but also achieves a lightweight and low-density sole. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the upper base structure according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the first middle bottom according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the second middle bottom according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the base structure of one embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the layered structure of the sole of a shoe according to an embodiment of the present invention. Detailed Implementation

[0024] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0025] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation 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.

[0026] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0027] An embodiment of this utility model provides a low-density, ultralight shoe sole, such as... Figure 1-6 As shown, from top to bottom, they include:

[0028] The upper sole 100 is made of polyurethane and has a first mounting groove 110.

[0029] The first midsole 200 is made of carbon fiber. The first midsole 200 includes a first carbon plate 210, a second carbon plate 220 and a connecting plate 230. The connecting plate 230 is located between the first carbon plate 210 and the second carbon plate 220, and the connecting plate 230 is connected to the first carbon plate 210 and the second carbon plate 220 respectively. The first midsole 200 is embedded in the first mounting groove 110.

[0030] The second midsole, 300, is made of EVA.

[0031] Outsole 400, the outsole material is rubber.

[0032] The upper 100 is made of polyurethane, a material that is not only low-density but also possesses good elasticity and abrasion resistance. The upper 100 is designed with a first mounting groove 110, in which the first midsole 200 is embedded. The first midsole 200 is made of carbon fiber, a lightweight and high-strength material. The first midsole 200 includes a first carbon plate 210, a second carbon plate 220, and a connecting plate 230, with the two carbon plates connected by the connecting plate 230. Because polyurethane is prone to breakage, a carbon fiber first midsole 200 is used to enhance its structural integrity. Dividing the carbon plates into two parts and connecting them with the connecting plate 230 allows the sole to maintain strength while offering better flexibility. This structure allows the sole to adapt more naturally to foot movement, providing a more comfortable wearing experience. The split carbon plate design reduces the risk of breakage due to stress concentration, thereby improving the overall durability of the sole. The second midsole 300 is made of EVA (ethylene-vinyl acetate copolymer), a material with good cushioning performance and lightweight properties. The outsole 400 is made of rubber, which has good wear resistance and slip resistance, making it suitable as the outermost layer of the sole. This invention's sole design, through the use of a layered structure of different materials, provides a low-density, ultra-lightweight, high-strength sole with good cushioning performance.

[0033] In some embodiments, the first carbon plate 210 and the second carbon plate 220 are each provided with a forefoot portion 240, an arch portion 250 and a heel portion 260 that are connected together along the front-back direction of the sole, and the connecting plate 230 is connected to the forefoot portion 240 of the first carbon plate 210 and the second carbon plate 220 respectively.

[0034] Both the first carbon fiber plate 210 and the second carbon fiber plate 220 are designed with an integrated forefoot section 240, arch section 250, and heel section 260 along the forefoot-to-rear direction of the sole. This design ensures the continuity and support of the carbon fiber plates along the entire length of the sole. A connecting plate 230 is connected to the forefoot section 240 of both the first and second carbon fiber plates 210 and 220, respectively. This connection method not only enhances the structural stability between the carbon fiber plates but also ensures the flexibility and support of the sole. Through this design, the first midsole 200 can provide high-strength support while maintaining the lightweight and flexibility of the sole. The integrated forefoot section 240, arch section 250, and heel section 260 design helps to distribute pressure on the sole, improving wearing comfort.

[0035] Furthermore, the arch portion 250 of the first carbon plate 210 and the arch portion 250 of the second carbon plate 220 protrude towards each other.

[0036] The arch portion 250 of the first carbon plate 210 and the arch portion 250 of the second carbon plate 220 protrude towards each other. This design helps to better conform to the natural curve of the foot, provides better arch support, and improves wearing comfort.

[0037] Furthermore, the forefoot portion 240 is also provided with a groove 270, which is located at the front end of the sole, and the connecting plate 230 is located at the rear end of the groove 270.

[0038] The forefoot portion 240 has a groove 270 located at the front of the sole. This design reduces weight at the front of the sole and increases flexibility. A connecting plate 230 is located at the rear of the groove 270. This layout ensures that the connecting plate 230 can effectively connect the first carbon plate 210 and the second carbon plate 220, while allowing the forefoot portion 240 to have better flexibility and responsiveness during movement.

[0039] In some embodiments, the second insole includes a second mounting groove 310 for mounting the outsole 400.

[0040] The second midsole 300 includes a second mounting groove 310 specifically designed for mounting the outsole 400. This design ensures a more stable and secure connection between the outsole 400 and the second midsole 300. The design of the second mounting groove 310 allows the outsole 400 to be accurately placed in the predetermined position on the second midsole 300. This not only helps improve the overall structural stability of the sole but also ensures the uniformity and effectiveness of the outsole 400's abrasion layer when in contact with the ground.

[0041] Furthermore, the outsole 400 includes a rubber sheet 410 for mating with the second mounting groove 310.

[0042] The outsole 400 includes a rubber sheet 410 for mating with a second mounting groove 310 of the second midsole 300. This design ensures a tighter connection between the outsole 400 and the second midsole 300. The design of the rubber sheet 410 allows the outsole 400 to be accurately embedded in the second mounting groove 310. This not only helps improve the overall structural stability of the sole but also ensures the uniformity and effectiveness of the abrasion layer of the outsole 400 when in contact with the ground.

[0043] Furthermore, there are multiple rubber sheets 410, and the second mounting groove 310 is also provided with multiple pieces, with the multiple rubber sheets 410 respectively fixed in the second mounting groove 310.

[0044] The outsole 400 consists of multiple rubber sheets 410, each designed to mate with a second mounting groove 310 of the second midsole 300. This segmented design allows for specific functions such as abrasion resistance, slip resistance, or cushioning to be provided for different areas. The multiple rubber sheets 410 are individually secured within their respective second mounting grooves 310, ensuring that each sheet is firmly embedded in its corresponding groove. This not only enhances the connection stability between the outsole 400 and the second midsole 300 but also allows for optimized design for different areas.

[0045] Furthermore, the rubber sheet 410 is provided with anti-slip protrusions 420 at intervals.

[0046] The rubber sheet 410 has anti-slip protrusions 420 spaced apart. These protrusions can be of different shapes and sizes, such as circular, oval, strip-shaped, or other geometric shapes. The main function of the anti-slip protrusions 420 is to increase the friction between the sole and the ground, thereby improving anti-slip performance. These protrusions can embed into the tiny bumps and depressions in the ground upon contact, providing additional grip. By designing the anti-slip protrusions 420 on the rubber sheet 410, the sole not only performs excellently on dry surfaces but also maintains good grip on wet, slippery, or uneven surfaces. This design helps improve the wearer's walking stability and reduces the risk of slipping, especially during sports or outdoor activities. The anti-slip protrusions 420 also enhance the abrasion resistance of the sole because they distribute pressure upon contact with the ground.

[0047] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A low density ultra-light shoe sole, characterized by, From top to bottom in turn includes: Upper bottom (100), the material of the upper bottom (100) is polyurethane, the upper bottom (100) has first installation groove (110); First midsole (200), the material of the first midsole (200) is carbon fiber, the first midsole (200) includes first carbon plate (210), second carbon plate (220) and connecting plate (230), the connecting plate (230) is located between the first carbon plate (210) and the second carbon plate (220), and the connecting plate (230) is connected with the first carbon plate (210) and the second carbon plate (220) respectively, the first midsole (200) is embedded in the first installation groove (110); Second midsole (300), the material of the second midsole (300) is EVA; Big bottom (400), the material of the big bottom (400) is rubber.

2. A low density ultra-light shoe sole according to claim 1, characterized in that, The first carbon plate (210) and the second carbon plate (220) are provided with front palm part (240), arch part (250) and rear root part (260) connected as a whole along the front and back direction of the sole, and the connecting plate (230) is connected with the front palm part (240) of the first carbon plate (210) and the second carbon plate (220) respectively.

3. A low density ultra-light shoe sole according to claim 2, characterized in that, The arch part (250) of the first carbon plate (210) and the arch part (250) of the second carbon plate (220) protrude towards each other.

4. A low density ultra-light shoe sole according to claim 3, characterized in that, The front palm part (240) is also provided with recess (270), the recess (270) is located at the front end of the sole, and the connecting plate (230) is located at the rear end of the recess (270).

5. A low density ultra-light shoe sole according to any one of claims 1 to 4, characterized in that, The second midsole (300) includes second installation groove (310) for installing the big bottom (400).

6. A low density ultra-light shoe sole according to claim 5, characterized in that, The big bottom (400) includes rubber sheet (410) matched with the second installation groove (310).

7. A low density ultra-light shoe sole according to claim 6, characterized in that, The rubber sheet (410) is multiple, and the second installation groove (310) is also provided with multiple, and the multiple rubber sheets (410) are fixed in the second installation groove (310) respectively.

8. A low density ultra-light shoe sole according to claim 7, characterized in that, Anti-skid convex (420) is arranged on the rubber sheet (410) at intervals.

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