A carbon fiber assembly for forming a spring air chamber, a sole, and a shoe

Abstract

The present application provides a kind of carbon fiber assembly for forming elastic air chamber, sole and shoe, carbon fiber assembly includes first carbon fiber plate and second carbon fiber plate on the upper surface of first carbon fiber plate;First carbon fiber plate includes the first lower curved portion corresponding with the forefoot of sole, the second lower curved portion corresponding with the heel of sole and the first transition portion corresponding with the arch of sole;Second carbon fiber plate includes the upper curved portion matched with at least one of first lower curved portion and second lower curved portion to form elastic air chamber.The present application has the advantages that not only can effectively improve the elasticity and recovery performance after bending of sole, but also carbon fiber assembly can be warped and produce pushing force to foot during the process of wearing shoe walking, the structure of elastic air chamber can also provide upward buffering force to user's foot, so as to improve foot feeling and ensure wearing comfort.

Description

Technical Field

[0001] This invention relates to the field of footwear technology, and in particular to a carbon fiber assembly for forming an elastic air cavity, a sole, and a shoe. Background Technology

[0002] With the continuous development of society and the significant improvement of living standards, people have higher and higher requirements for the comfort of shoes. Among them, the elasticity and bending recovery of the sole have a significant impact on the comfort of shoes.

[0003] To increase the elasticity of the sole and its recovery performance after bending, one approach is to incorporate carbon fiber components into the sole. The shape of these carbon fiber components needs to be adapted to the shape of the sole, specifically designed according to the shape of the forefoot, arch, and heel of the sole. For example, Chinese invention patent application number 202210477882.5 discloses a carbon fiber component for shoe soles, a shoe sole, and a shoe. The carbon fiber component includes a first carbon fiber strip, a second carbon fiber strip, a front support plate, and a rear support plate. The front ends of both the first and second carbon fiber strips are fixed to the front support plate, and their rear ends are fixed to the rear support plate, forming a weight-reducing groove between them. The front support plate, in conjunction with the front parts of the first and second carbon fiber strips, corresponds to the forefoot portion of the shoe sole. The rear support plate, in conjunction with the rear parts of the first and second carbon fiber strips, corresponds to the arch portion, heel portion, or the area between the arch and heel portions of the shoe sole. The first and second carbon fiber strips extend from the forefoot portion to the arch portion of the shoe sole with a preset curvature. This carbon fiber component can effectively reduce material loss caused by cutting during the manufacturing process of conventional carbon fiber soles, thereby effectively reducing production costs. However, existing carbon fiber components all use a single-plate structure, resulting in poor elasticity and recovery performance of the shoe sole, and the comfort needs improvement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a carbon fiber component for forming an elastic air cavity, a shoe sole, and a shoe, which solves the problem that the existing carbon fiber components of shoe soles all adopt a single-plate structure, resulting in poor elasticity and recovery performance of the shoe sole and the need to improve comfort.

[0005] This invention is implemented as follows:

[0006] In a first aspect, a carbon fiber assembly for forming an elastic air cavity includes a first carbon fiber plate and a second carbon fiber plate disposed on the upper surface of the first carbon fiber plate.

[0007] The first carbon fiber plate includes a first downward curved portion corresponding to the forefoot portion of the sole, a second downward curved portion corresponding to the heel portion of the sole, and a first transition portion corresponding to the arch portion of the sole.

[0008] The second carbon fiber plate includes an upper curved portion that cooperates with at least one of the first and second lower curved portions to form an elastic air cavity.

[0009] Furthermore, the second carbon fiber plate includes a first upper curved portion that cooperates with the first lower curved portion to form a first elastic air cavity and a second upper curved portion that cooperates with the second lower curved portion to form a second elastic air cavity.

[0010] Furthermore, the first upper curved portion and the second upper curved portion are each independently provided; both ends of the first lower curved portion are provided with a first limiting portion, and both ends of the first upper curved portion are limited by the first limiting portion; both ends of the second lower curved portion are provided with a second limiting portion, and both ends of the second upper curved portion are limited by the second limiting portion.

[0011] Furthermore, the first upper curved portion and the second upper curved portion are connected as one unit by a second transition portion; the first transition portion and the second transition portion are bonded and fixed together; the first lower curved portion is provided with a first limiting portion at the end away from the first transition portion, and the end of the first upper curved portion is limited by the first limiting portion; the second lower curved portion is provided with a second limiting portion at the end away from the first transition portion, and the end of the second upper curved portion is limited by the second limiting portion.

[0012] Furthermore, the first carbon fiber plate also includes a first inclined extension portion extending obliquely upward from the front end of the first lower bend portion and a second inclined extension portion extending obliquely upward from the rear end of the second lower bend portion.

[0013] Furthermore, the height of the first elastic air chamber is 5-25mm, and the height of the second elastic air chamber is 5-30mm.

[0014] Furthermore, the thickness of the first upper curved portion and the second upper curved portion is 0.6-1.2 mm.

[0015] Furthermore, the thickness of the first lower curved portion, the second lower curved portion, and the first transition portion is 0.8-1.6 mm.

[0016] Secondly, a shoe sole includes an upper midsole, a lower midsole, and the aforementioned carbon fiber component; the carbon fiber component is bonded and fixed between the upper midsole and the lower midsole.

[0017] Thirdly, a shoe comprising the aforementioned sole.

[0018] By adopting the technical solution of the present invention, at least the following beneficial effects are achieved: the first carbon fiber plate is designed to include a first lower bending portion, a second lower bending portion, and a first transition portion, while the second carbon fiber plate is designed to include an upper bending portion that cooperates with at least one of the first and second lower bending portions to form an elastic air cavity; since both the first and second carbon fiber plates have good elasticity, the elastic air cavity between the first and second carbon fiber plates can form a structure similar to an airbag. Therefore, by applying this carbon fiber component to the sole, not only can the elasticity and recovery performance after bending be effectively improved, but also, during the user's walking process, the carbon fiber component can bend and generate a pushing force on the foot, and the structure of the elastic air cavity can also provide an upward cushioning force for the user's foot, thereby improving the feel and ensuring wearing comfort. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of a specific embodiment of the carbon fiber component of the present invention;

[0021] Figure 2 yes Figure 1 Enlarged view of part B in the middle;

[0022] Figure 3 yes Figure 1 Enlarged view of part A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the first carbon fiber plate in a specific embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the second upper curved portion in a specific embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the first upper curved portion in a specific embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of another specific embodiment of the carbon fiber component of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the first carbon fiber plate in another specific embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the second carbon fiber plate in another specific embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of a specific embodiment of the sole of the present invention;

[0030] Figure 11 This is a schematic diagram of another specific embodiment of the shoe sole of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100-Carbon Fiber Assembly;

[0033] 1-First carbon fiber plate, 11-First lower bend, 12-Second lower bend, 13-First transition, 14-First limiting part, 15-Second limiting part, 16-First inclined extension, 17-Second inclined extension;

[0034] 2-Second carbon fiber plate, 21-First upper bend, 22-Second upper bend, 23-Second transition section;

[0035] 31-First elastic air chamber, 32-Second elastic air chamber;

[0036] 200 - Sole;

[0037] 4- Upper insole;

[0038] 5-Lower layer insole. Detailed Implementation

[0039] To better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. Example

[0041] Please see Figures 1 to 9 As shown, a preferred embodiment of the present invention is a carbon fiber assembly 100 for forming an elastic air cavity, the carbon fiber assembly 100 including a first carbon fiber plate 1 and a second carbon fiber plate 2 disposed on the upper surface of the first carbon fiber plate 1.

[0042] The first carbon fiber plate 1 includes a first downward curved portion 11 corresponding to the forefoot portion of the sole, a second downward curved portion 12 corresponding to the heel portion of the sole, and a first transition portion 13 corresponding to the arch portion of the sole; wherein, the shape of the first downward curved portion 11 is adapted to the forefoot portion of the sole, the shape of the second downward curved portion 12 is adapted to the heel portion of the sole, and the first transition portion 13 is adapted to the arch portion of the sole.

[0043] The second carbon fiber plate 2 includes an upper curved portion that cooperates with at least one of the first lower curved portion 11 and the second lower curved portion 12 to form an elastic air cavity. That is, in specific implementations of the present invention, the second carbon fiber plate 2 can be designed to include an upper curved portion that cooperates with the first lower curved portion 11 to form an elastic air cavity, or the second carbon fiber plate 2 can be designed to include an upper curved portion that cooperates with the second lower curved portion 12 to form an elastic air cavity, or the second carbon fiber plate 2 can be designed to include an upper curved portion that cooperates with both the first lower curved portion 11 and the second lower curved portion 12 to form two elastic air cavities.

[0044] This invention designs a first carbon fiber plate 1 including a first lower bending portion 11, a second lower bending portion 12, and a first transition portion 13, and a second carbon fiber plate 2 including an upper bending portion that cooperates with at least one of the first lower bending portion 11 and the second lower bending portion 12 to form an elastic air chamber. Because both the first carbon fiber plate 1 and the second carbon fiber plate 2 have good elasticity, the elastic air chamber between the first carbon fiber plate 1 and the second carbon fiber plate 2 can form a structure similar to an airbag. Therefore, by applying this carbon fiber component 100 to the sole, not only can the elasticity and recovery performance after bending be effectively improved, but also, during the user's walking process, the carbon fiber component 100 can bend and generate a pushing force on the foot, and the structure of the elastic air chamber can also provide an upward cushioning force for the user's foot, thereby improving the feel and ensuring wearing comfort.

[0045] In a preferred embodiment of the present invention, the second carbon fiber plate 2 includes a first upper curved portion 21 that cooperates with the first lower curved portion 11 to form a first elastic air chamber 31, and a second upper curved portion 22 that cooperates with the second lower curved portion 12 to form a second elastic air chamber 32. By utilizing the first lower curved portion 11 and the first upper curved portion 21 to form the first elastic air chamber 31, and utilizing the second lower curved portion 12 and the second upper curved portion 22 to form the second elastic air chamber 32, after the carbon fiber assembly 100 is applied to the sole, an airbag-like structure can be formed in the forefoot and heel areas of the sole, thereby further improving the elasticity of the sole, its recovery performance after bending, and wearing comfort.

[0046] As one specific embodiment of the present invention, please refer to the following: Figure 4-6 As shown, the first upper bending portion 21 and the second upper bending portion 21 are both independently provided, that is, the first upper bending portion 21 and the second upper bending portion 21 are not connected. This is equivalent to the second carbon fiber plate 2 comprising two independent carbon fiber plates. In this specific embodiment, the entire carbon fiber assembly 100 is equivalent to comprising three independent carbon fiber plates. By independently providing the first upper bending portion 21 and the second upper bending portion 21, the cost of the sole is reduced, making the entire sole lighter.

[0047] Both ends of the first lower curved portion 11 are provided with first limiting portions 14. Both ends of the first upper curved portion 21 are limited by the first limiting portions 14. By using the first limiting portions 14 to limit both ends of the first upper curved portion 21, the first upper curved portion 21 can be prevented from shifting and can be better restored after being deformed by force. Both ends of the second lower curved portion 12 are provided with second limiting portions 15. Both ends of the second upper curved portion 22 are limited by the second limiting portions 15. By using the second limiting portions 15 to limit both ends of the second upper curved portion 22, the second upper curved portion 22 can be prevented from shifting and can be better restored after being deformed by force.

[0048] In this specific embodiment, the first limiting part 14 is a first protrusion formed at both ends of the upper surface of the first lower curved part 11, and the first protrusion can be inclined, so that the first protrusion and the upper surface of the first lower curved part 11 form a structure similar to a limiting groove. During installation, the end of the first upper curved part 21 can be inserted into the structure similar to a limiting groove. The second limiting part 15 is a second protrusion formed at both ends of the upper surface of the second lower curved part 12, and the second protrusion can be inclined, so that the second protrusion and the upper surface of the second lower curved part 12 form a structure similar to a limiting groove. During installation, the end of the second upper curved part 22 can be inserted into the structure similar to a limiting groove.

[0049] As another specific embodiment of the present invention, please refer to the following: Figure 7-9 As shown, the first upper curved portion 21 and the second upper curved portion 22 are connected as one unit through the second transition portion 23. That is, in this other specific embodiment, the entire carbon fiber assembly 100 includes only two independent carbon fiber plates. The first transition portion 13 and the second transition portion 23 are bonded and fixed together. Specifically, strong adhesive or the like can be used to bond and fix the upper surface of the first transition portion 13 and the lower surface of the second transition portion 23 together. By using the second transition portion 23 to connect the first upper curved portion 21 and the second upper curved portion 22 as one unit, the first upper curved portion 21 and the second upper curved portion 22 can be reliably combined together.

[0050] The first lower curved portion 11 has a first limiting portion 14 at the end away from the first transition portion 13, and the end of the first upper curved portion 21 is limited by the first limiting portion 14; the second lower curved portion 12 has a second limiting portion 15 at the end away from the first transition portion 13, and the end of the second upper curved portion 22 is limited by the second limiting portion 15. By using the first limiting portion 14 to limit the end of the first upper curved portion 21 and using the second limiting portion 15 to limit the end of the second upper curved portion 22, the first carbon fiber plate 1 and the second carbon fiber plate 2 can be better bonded together.

[0051] In another specific embodiment, the first limiting part 14 is a first protrusion formed on the upper surface end of the first lower curved part 11, and the first protrusion can be inclined, so that the first protrusion and the upper surface of the first lower curved part 11 form a structure similar to a limiting groove. During installation, the end of the first upper curved part 21 can be inserted into the structure similar to a limiting groove. The second limiting part 15 is a second protrusion formed on the upper surface end of the second lower curved part 12, and the second protrusion can be inclined, so that the second protrusion and the upper surface of the second lower curved part 12 form a structure similar to a limiting groove. During installation, the end of the second upper curved part 22 can be inserted into the structure similar to a limiting groove.

[0052] In another specific embodiment of the present invention, the first upper curved portion 21 and the second upper curved portion 21 are integrally formed with the first carbon fiber plate 1, thereby enabling the first carbon fiber plate 1 and the second carbon fiber plate 2 to be reliably bonded together, and eliminating the need for limiting portions on the first carbon fiber plate 1. In actual production, any one of the above specific embodiments, another specific embodiment, and yet another specific embodiment can be used for manufacturing.

[0053] In a preferred embodiment of the present invention, the first carbon fiber plate 1 further includes a first inclined extension 16 extending obliquely upward from the front end of the first lower curved portion 11 and a second inclined extension 17 extending obliquely upward from the rear end of the second lower curved portion 12. In this way, after the carbon fiber assembly 100 is placed inside the sole, the carbon fiber assembly 100 can be better bonded to the sole and ensure that the carbon fiber assembly 100 can better recover its original shape after being deformed by force.

[0054] In a preferred embodiment of the present invention, in order to provide better cushioning force for the formed airbag structure, the height of the first elastic air chamber 31 is 5-25 mm, and the height of the second elastic air chamber 32 is 5-30 mm. Preferably, the height of the first elastic air chamber 31 is 12 mm, and the height of the second elastic air chamber 32 is 14 mm.

[0055] In a preferred embodiment of the present invention, the length of the first elastic air chamber 31 is 70.5 mm, and the length of the second elastic air chamber 32 is 69 mm.

[0056] In a preferred embodiment of the present invention, the thickness of the first upper curved portion 21 and the second upper curved portion 22 is 0.6-1.2 mm. Preferably, the thickness of the first upper curved portion 21 and the second upper curved portion 22 is 0.8 mm.

[0057] In a preferred embodiment of the present invention, the thickness of the first lower curved portion 11, the second lower curved portion 12, and the first transition portion 13 is 0.8-1.6 mm. Preferably, the thickness of the first lower curved portion 11, the second lower curved portion 12, and the first transition portion 13 is 1.2 mm. Example

[0058] Please refer to Figures 1 to 11 As shown, a preferred embodiment of the shoe sole 200 of the present invention includes an upper midsole 4, a lower midsole 5, and a carbon fiber assembly 100. The specific structure of the carbon fiber assembly 100 is described in detail in Embodiment 1 and will not be repeated here. The carbon fiber assembly 100 is bonded and fixed between the upper midsole 4 and the lower midsole 5, specifically using strong adhesive. Please refer to... Figure 10 As shown, the Figure 10 The sole 200 uses a carbon fiber assembly 100 composed of three independent carbon fiber plates; please refer to... Figure 11 As shown, the Figure 11 The sole 200 is made of a carbon fiber assembly 100 composed of two independent carbon fiber plates. The sole 200, manufactured using this method, not only has excellent elasticity and recovery performance, but also improves the feel on the foot, ensuring comfortable wear. Example

[0059] Please refer to Figures 1 to 11 As shown in the figure, a preferred embodiment of a shoe of the present invention is provided. The shoe includes a sole 100. The specific structure of the sole 100 is described in detail in Embodiment 2, and will not be repeated here.

[0060] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A shoe sole, characterized in that: It includes an upper midsole, a lower midsole, and a carbon fiber assembly; the carbon fiber assembly is bonded and fixed between the upper midsole and the lower midsole. The carbon fiber assembly includes a first carbon fiber plate and a second carbon fiber plate disposed on the upper surface of the first carbon fiber plate; the first carbon fiber plate includes a first downward curved portion corresponding to the forefoot portion of the sole, a second downward curved portion corresponding to the heel portion of the sole, and a first transition portion corresponding to the arch portion of the sole. The second carbon fiber plate includes a first upper curved portion that cooperates with the first lower curved portion to form a first elastic air cavity and a second upper curved portion that cooperates with the second lower curved portion to form a second elastic air cavity; The first upper curved portion and the second upper curved portion are connected as one unit through the second transition portion, and the first transition portion and the second transition portion are bonded and fixed together. The height of the first elastic air chamber is 5-25mm; The elastic air cavity between the first carbon fiber plate and the second carbon fiber plate forms an airbag structure.

2. The sole as described in claim 1, characterized in that: The first lower curved portion has a first limiting portion at the end away from the first transition portion, and the end of the first upper curved portion is limited by the first limiting portion; the second lower curved portion has a second limiting portion at the end away from the first transition portion, and the end of the second upper curved portion is limited by the second limiting portion.

3. The sole as described in claim 1, characterized in that: The first carbon fiber plate further includes a first inclined extension portion extending upward from the front end of the first lower bend portion and a second inclined extension portion extending upward from the rear end of the second lower bend portion.

4. The sole as described in any one of claims 1-3, characterized in that: The height of the second elastic air chamber is 5-30mm.

5. The sole as described in any one of claims 1-3, characterized in that: The thickness of the first upper curved portion and the second upper curved portion is 0.6-1.2 mm.

6. The sole as described in any one of claims 1-3, characterized in that: The thickness of the first lower curved portion, the second lower curved portion, and the first transition portion is 0.8-1.6 mm.

7. A shoe, characterized in that: The shoe includes the sole as described in claim 1.

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