Carbon plate for sports shoes

Abstract

The invention relates to a carbon plate for sports shoes. From a sole to the top, the carbon plate sequentially comprises a first fiber layer, a second fiber layer and a third fiber layer, the second layer is a fiber layer made of 0-degree unidirectional polyimide fiber cloth; the third layer is an arch reinforcing sheet made of a poly-p-phenylene terephthamide material; the carbon fiber unidirectional belts adopted by at least two carbon fiber layers are symmetrically arranged in the forward direction and the reverse direction, and the other carbon fiber layer is made of 90-degree carbon fiber unidirectional belt materials. The carbon fiber plate has the advantages that the reinforcing piece is arranged at the foot arch, the structural strength of the carbon fiber plate at the weak position of the foot arch can be improved, in addition, the protruding reinforcing ribs can further improve the rigidity of the foot arch, and therefore the structural strength of the whole carbon plate is improved, and the problem that the service life is damaged due to excessive bending of the carbon plate is solved.

Description

Technical Field

[0001] The invention relates to a carbon plate for shoes. Background Art

[0002] Carbon fiber materials are mainly used in high-tech fields such as aerospace and automobiles. Carbon fiber plates are plates made of carbon fiber materials. With the characteristics of high strength and high stiffness, the strength of carbon fiber is higher than that of steel, but the weight is very light, which makes carbon fiber plates perform well in applications that need to bear large loads while requiring lightweight. In addition, carbon fiber plates have a low density, and using them in some places helps to reduce the weight of the overall structure.

[0003] We tried to use carbon fiber plates in the shoe body. Using carbon fiber plates in the shoe body can enhance the structural strength of the sole, reduce the deformation of the sole during exercise, provide stable support for the foot, and reduce the risk of injury. However, the existing carbon fiber plates used as shoe plates are prone to bending at the arch due to insufficient strength, which affects the service life of the shoe. Summary of the invention

[0004] In order to overcome the disadvantage that the existing carbon plate for sports shoes is prone to bend due to insufficient strength at the arch of the foot, the present invention provides a carbon plate for sports shoes.

[0005] The technical solution of the present invention to solve the technical problem is: a carbon plate for sports shoes, which comprises, from the sole to the top: The first layer is a fiber layer made of 90° unidirectional polyimide fiber cloth; The second layer is a fiber layer made of 0° unidirectional polyimide fiber cloth; The third layer is a foot arch reinforcement sheet made of poly(p-phenylene terephthalamide) material; The additional 3 to 6 carbon fiber layers, at least two of which are made of carbon fiber unidirectional tapes that are symmetrically arranged in forward and reverse directions, and another carbon fiber layer is made of 90° carbon fiber unidirectional tape material.

[0006] Preferably, the carbon fiber layer comprises five layers, which constitute the fourth layer, the fifth layer, the sixth layer, the seventh layer and the eighth layer; The fourth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a positive angle; The fifth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a reverse angle; The sixth layer is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The seventh layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a reverse angle; The eighth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a positive angle.

[0007] Furthermore, the fourth layer uses 25° carbon fiber unidirectional tape; The fifth layer uses -25° carbon fiber unidirectional tape; The seventh layer uses -25° carbon fiber unidirectional tape; The eighth layer uses 25° carbon fiber unidirectional tape.

[0008] In another preferred embodiment, the carbon fiber layer comprises three layers, which constitute the fourth layer, the fifth layer and the sixth layer; The fourth layer is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The fifth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a positive angle; The sixth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a reverse angle.

[0009] Furthermore, the fifth layer uses 25° carbon fiber unidirectional tape; The sixth layer uses -25° carbon fiber unidirectional tape.

[0010] The optimization is performed between structural strength and carbon plate quality, and the thickness of the carbon plate for sports shoes is between 0.8 and 1.5 mm.

[0011] Preferably, the fineness of the polyimide fiber cloth is 1500D.

[0012] To facilitate laying, the thickness of a single carbon fiber layer is 0.1~0.2mm.

[0013] The polyimide is optimized, and the density of the polyimide fiber layer is 1.38g / cm 3 -1.43g / cm 3 , thickness is 0.1-0.2mm.

[0014] In order to enhance the structural strength of the arch, the carbon plate for sports shoes is provided with raised reinforcing ribs longitudinally at the arch.

[0015] The arch reinforcement sheet is a sheet-like structure, the shape of which does not exceed the carbon plate, but covers the arch in the longitudinal direction.

[0016] The polyimide fiber layer, the arch reinforcement sheet, and the carbon fiber layer are compounded together to form a carbon plate.

[0017] When the present invention is used, it is installed in the sole and can significantly improve the elasticity and structural strength of the sole. Other use methods are the same as the carbon fiber plate in the prior art.

[0018] The beneficial effects of the present invention are: 1. Providing a reinforcing sheet at the arch of the foot can improve the structural strength of the carbon fiber plate at the weak part of the arch of the foot. In addition, the raised reinforcing ribs can further improve the rigidity at the arch of the foot, thereby improving the structural strength of the entire carbon plate and reducing the problem of excessive bending of the carbon plate damaging the service life. 2. The carbon fiber plate has excellent rigidity and strength, can provide strong support for the sole, reduce excessive twisting and deformation of the foot during exercise, and reduce the risk of injury. Strong rigidity can accurately transmit force, ensure that the force of the foot is effectively transmitted to the ground, improve the accuracy and stability of the movement, and its elastic properties can store and release energy when the foot pushes the ground, improve exercise efficiency, and bring better propulsion effects to athletes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of an embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the decomposition of Example 1.

[0021] Figure 3 It is a cross-sectional schematic diagram of Example 1.

[0022] Figure 4 It is a schematic diagram of the decomposition of Example 2.

[0023] Figure 5 It is a cross-sectional schematic diagram of Example 2.

[0024] Figure 6 It is a schematic diagram of the decomposition of Example 3.

[0025] Figure 7 It is a cross-sectional schematic diagram of Example 3. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings.

[0027] Example 1 Combined with Figures 1 to 3 , a carbon plate for sports shoes, from the sole to the top are: The first layer 1a is a fiber layer made of 90° unidirectional polyimide fiber cloth; The second layer 2a is a fiber layer made of 0° unidirectional polyimide fiber cloth; The third layer 3a is a foot arch reinforcement sheet made of poly(p-phenylene terephthalamide) material; The carbon fiber layer comprises five layers, which constitute a fourth layer 4a, a fifth layer 5a, a sixth layer 6a, a seventh layer 7a, and an eighth layer 8a; The fourth layer 4a is a carbon fiber layer made of 25° carbon fiber unidirectional tape material; The fifth layer 5a is a carbon fiber layer made of -25° carbon fiber unidirectional tape material; The sixth layer 6a is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The seventh layer 7a is a carbon fiber layer made of -25° carbon fiber unidirectional tape material; The eighth layer 8a is a carbon fiber layer made of 25° carbon fiber unidirectional tape material.

[0028] An optimization is made between structural strength and carbon plate quality, and the thickness of the carbon plate for sports shoes is 0.8 mm.

[0029] Preferably, the fineness of the polyimide fiber cloth is 1500D.

[0030] To facilitate laying, the thickness of a single carbon fiber layer is 0.1 mm.

[0031] The polyimide is optimized, and the density of the polyimide fiber layer is 1.4g / cm 3 , thickness is 0.1mm.

[0032] In order to enhance the structural strength of the arch, the carbon plate for sports shoes is provided with raised reinforcing ribs 9 longitudinally at the arch.

[0033] The arch reinforcement sheet is a sheet-like structure, the shape of which does not exceed the carbon plate, but covers the arch in the longitudinal direction.

[0034] When the present invention is used, it is installed in the sole and can significantly improve the elasticity and structural strength of the sole. Other use methods are the same as the carbon fiber plate in the prior art.

[0035] Example 2 Combined with Figure 1 , 4 and 5. A carbon plate for sports shoes, comprising, from the sole to the top: The first layer 1b is a fiber layer made of 90° unidirectional polyimide fiber cloth; The second layer 2b is a fiber layer made of 0° unidirectional polyimide fiber cloth; The third layer 3b is a foot arch reinforcement sheet made of poly(p-phenylene terephthalamide) material; The carbon fiber layer comprises 6 layers, which constitute the fourth layer, the fifth layer, the sixth layer, the seventh layer, the eighth layer and the ninth layer; The fourth layer 4b is a carbon fiber layer made of 25° carbon fiber unidirectional tape material; The fifth layer 5b is a carbon fiber layer made of -25° carbon fiber unidirectional tape material; The sixth layer 6b is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The seventh layer 7b is a carbon fiber layer made of -25° carbon fiber unidirectional tape material; The eighth layer 8b is a carbon fiber layer made of 25° carbon fiber unidirectional tape material.

[0036] The ninth layer 9b is a carbon fiber layer made of 0° carbon fiber unidirectional tape material.

[0037] A preference is given to between structural strength and carbon plate quality, and the thickness of the carbon plate for sports shoes is 1.4 mm.

[0038] Preferably, the fineness of the polyimide fiber cloth is 1500D.

[0039] To facilitate laying, the thickness of a single carbon fiber layer is 0.15 mm.

[0040] The polyimide is optimized, and the density of the polyimide fiber layer is 1.4g / cm 3 , thickness is 0.2mm.

[0041] In order to enhance the structural strength of the arch, the carbon plate for sports shoes is provided with raised reinforcing ribs 9 longitudinally at the arch.

[0042] When the present invention is used, it is installed in the sole and can significantly improve the elasticity and structural strength of the sole. Other use methods are the same as the carbon fiber plate in the prior art.

[0043] Example 3 Combined with Figure 1 , 6 and 7. A carbon plate for sports shoes, comprising, from the sole to the top: The first layer 1c is a fiber layer made of 90° unidirectional polyimide fiber cloth; The second layer 2c is a fiber layer made of 0° unidirectional polyimide fiber cloth; The third layer 3c is a foot arch reinforcement sheet made of poly(p-phenylene terephthalamide) material; The carbon fiber layer is composed of three layers, forming the fourth layer, the fifth layer and the sixth layer; The fourth layer 4c is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The fifth layer 5c is a carbon fiber layer made of 25° carbon fiber unidirectional tape material; The sixth layer 6c is a carbon fiber layer made of -25° carbon fiber unidirectional tape material. The structural strength and the quality of the carbon plate are optimized, and the thickness of the carbon plate for sports shoes is 1.4 mm.

[0044] Preferably, the fineness of the polyimide fiber cloth is 1500D.

[0045] To facilitate laying, the thickness of a single carbon fiber layer is 0.15 mm.

[0046] The polyimide is optimized, and the density of the polyimide fiber layer is 1.4g / cm3 , thickness is 0.2mm.

[0047] In order to enhance the structural strength of the arch, the carbon plate for sports shoes is provided with raised reinforcing ribs 9 longitudinally at the arch.

[0048] When this embodiment is used, it is installed in the sole, which can significantly improve the elasticity and structural strength of the sole. Other usage methods are the same as the carbon fiber plate in the prior art.

[0049] The beneficial effects of the present invention are: 1. Providing a reinforcing sheet at the arch of the foot can improve the structural strength of the carbon fiber plate at the weak part of the arch of the foot. In addition, the raised reinforcing ribs can further improve the rigidity at the arch of the foot, thereby improving the structural strength of the entire carbon plate and reducing the problem of excessive bending of the carbon plate damaging the service life. 2. The carbon fiber plate has excellent rigidity and strength, can provide strong support for the sole, reduce excessive twisting and deformation of the foot during exercise, and reduce the risk of injury. Strong rigidity can accurately transmit force, ensure that the force of the foot is effectively transmitted to the ground, improve the accuracy and stability of the movement, and its elastic properties can store and release energy when the foot pushes the ground, improve exercise efficiency, and bring better propulsion effects to athletes.

Claims

1. A carbon plate for sports shoes, Features: From the sole to the top: The first layer is a fiber layer made of 90° unidirectional polyimide fiber cloth; The second layer is a fiber layer made of 0° unidirectional polyimide fiber cloth; The third layer is a foot arch reinforcement sheet made of poly(p-phenylene terephthalamide) material; The additional 3 to 6 carbon fiber layers, at least two of which are made of carbon fiber unidirectional tapes that are symmetrically arranged in forward and reverse directions, and another carbon fiber layer is made of 90° carbon fiber unidirectional tape material.

2. The carbon plate for sports shoes according to claim 1, Features: The carbon fiber layer comprises five layers, which constitute the fourth layer, the fifth layer, the sixth layer, the seventh layer and the eighth layer; The fourth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a positive angle; The fifth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a reverse angle; The sixth layer is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The seventh layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a reverse angle; The eighth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a positive angle.

3. The carbon plate for sports shoes according to claim 2, Features: The fourth layer uses 25° carbon fiber unidirectional tape; The fifth layer uses -25° carbon fiber unidirectional tape; The seventh layer uses -25° carbon fiber unidirectional tape; The eighth layer uses 25° carbon fiber unidirectional tape.

4. The carbon plate for sports shoes according to claim 1, Features: The carbon fiber layer is composed of three layers, forming the fourth layer, the fifth layer and the sixth layer; The fourth layer is a carbon fiber layer made of 90° carbon fiber unidirectional tape material; The fifth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a positive angle; The sixth layer is a carbon fiber layer made of carbon fiber unidirectional tape material arranged at a reverse angle.

5. The carbon plate for sports shoes according to claim 4, Features: The fifth layer uses 25° carbon fiber unidirectional tape; The sixth layer uses -25° carbon fiber unidirectional tape.

6. The carbon plate for sports shoes according to claim 1, Features: The thickness of the carbon plate for sports shoes is between 0.8 and 1.5 mm.

7. The carbon plate for sports shoes according to claim 1, Features: The fineness of the polyimide fiber cloth is 1500D.

8. The carbon plate for sports shoes according to claim 1, Features: The thickness of a single carbon fiber layer is 0.1~0.2mm.

9. The carbon plate for sports shoes according to claim 1, Features: The density of the polyimide fiber layer is 1.38g / cm 3 -1.43g / cm 3 , thickness is 0.1-0.2mm.

10. The carbon plate for sports shoes according to claim 1, Features: The carbon plate for sports shoes is longitudinally provided with raised reinforcing ribs at the arch of the foot.

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