Sole supporting composite board and sole

Abstract

The invention discloses a shoe sole supporting composite board which comprises a hollow structure and a carbon fiber laying layer. The carbon fiber laying layers comprise first carbon fiber laying layers arranged on the upper side and the lower side of the hollow structure in the thickness direction, second carbon fiber laying layers arranged on the side faces of the hollow structure in the length direction and the width direction, and third carbon fiber laying layers arranged on the first carbon fiber laying layers and the second carbon fiber laying layers. The first carbon fiber laying layer is arranged in the full sole area of the sole; and the total layer thickness of the carbon fiber layer in the thickness direction is 1.5-2.5 mm. The invention further provides a shoe sole comprising the shoe sole supporting composite plate. The shoe sole supporting composite plate has excellent toughness, rigidity and toughness balance can be achieved, impact resistance is improved, the problem that a shoe sole is prone to breakage when being bent by a large angle is solved, and sharp fractures cannot be formed.

Description

Technical Field

[0001] The invention relates to the technical field of footwear products, and in particular to a sole supporting composite plate and a sole. Background Art

[0002] Carbon fiber has excellent properties such as light weight, high strength, and corrosion resistance. It has been increasingly widely used in aerospace, industry, automobiles, sports and other fields, and its application in sporting goods is in a period of rapid expansion. Carbon fiber composite plates (carbon plates) have become standard for high-end sports running shoes, used to enhance sports functions and provide a better sports experience.

[0003] Existing carbon fiber composite panels are mostly used as supporting components in the midsole of running shoes. Generally, the shape structure of the carbon plate is designed to utilize the lever principle to enhance the rigidity (propulsion force) of the shoe body, while providing stable support and reducing the weight of the shoe body, so as to achieve the effect of rapid transition and energy saving during running and stretching. However, the following problems also exist in the prior art: ① The epoxy-based carbon plate has strong rigidity but insufficient toughness. The carbon plate is prone to large angle bending and carbon plate fracture during exercise; ② The rigidity of equal-thickness carbon plates is consistent at all positions on the sole, and the shock absorption is insufficient; ③ The pure carbon carbon plate has poor impact resistance. When the carbon plate is impacted by stones or sharp objects during wearing, the carbon plate is prone to brittle fracture, and the fracture is relatively sharp, which can easily injure the wearer by mistake. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a sole support composite plate and a sole. The sole support composite plate has excellent toughness, can achieve a balance between rigidity and toughness, improve impact resistance, solve the problem that the sole is easily broken when bent at a large angle, and will not form a sharp fracture.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A sole support composite plate comprises a hollow structure and a carbon fiber ply, wherein the carbon fiber ply comprises a first carbon fiber ply arranged on the upper and lower sides of the hollow structure in a thickness direction, a second carbon fiber ply arranged on the side surfaces of the hollow structure in a length direction and a width direction, and a third carbon fiber ply arranged on the first carbon fiber ply and the second carbon fiber ply; the first carbon fiber ply is arranged in the full palm area of ​​the sole; the total ply thickness of the carbon fiber ply in the thickness direction is 1.5-2.5 mm.

[0007] Furthermore, the thickness of the hollow structure is less than 1.5 mm, and the thickness varies from the outermost side of the sole to the midfoot area of ​​the sole.

[0008] Furthermore, the laying angle of the composite carbon fiber cloth used to make the carbon fiber layup is 0 degrees, 30 degrees, 45 degrees, 60 degrees or 90 degrees, wherein the laying angle of the composite carbon fiber cloth of the carbon fiber layups on the upper and lower sides in the thickness direction of the hollow structure is the angle between the fiber yarns in the composite carbon fiber cloth and the length direction of the sole; the laying angle of the composite carbon fiber cloth of the carbon fiber layups on the sides in the length direction and width direction of the hollow structure is the angle between the fiber yarns in the composite carbon fiber cloth and the thickness direction of the sole.

[0009] Furthermore, the plying angle of the composite carbon fiber cloth of the first carbon fiber ply is 0 degrees; and the plying angle of the composite carbon fiber cloth of the second carbon fiber ply is 90 degrees.

[0010] Furthermore, the number of plies of the third carbon fiber ply is greater than 3.

[0011] Furthermore, the thickness of a single carbon fiber layer is 0.08-0.2 mm.

[0012] Furthermore, the carbon fiber ply is made of composite carbon fiber cloth, and the composite carbon fiber cloth is composite carbon fiber woven cloth or reset carbon fiber unidirectional cloth.

[0013] Furthermore, the composite carbon fiber woven cloth is made of carbon fiber woven cloth impregnated with resin material; the composite carbon fiber unidirectional cloth is made of unidirectionally arranged fibers impregnated with resin material.

[0014] Furthermore, the carbon fiber woven cloth is woven with carbon fiber yarn, or is woven with a mixture of carbon fiber and one selected from basalt fiber and glass fiber; the unidirectionally arranged fibers in the composite carbon fiber unidirectional cloth are carbon fibers, or are composite fibers containing carbon fibers and a certain proportion of basalt fibers or glass fibers.

[0015] The present invention further provides a sole, which comprises the above-mentioned sole supporting composite plate.

[0016] The beneficial effects of the present invention are:

[0017] The sole support composite plate of the present invention has a hollow structure, which is surrounded by carbon fiber plies in the thickness direction, length direction and width direction; the carbon fiber plies on the sides of the length direction and width direction of the hollow structure can play the role of reinforcing ribs, which can reduce the impact of external impact force and improve impact resistance. The hollow structure designed in the present invention is combined with the carbon fiber plies, which has excellent rigidity and toughness, can achieve a balance between rigidity and toughness, solve the problem that the sole is easy to break when bent at a large angle, and will not form a sharp fracture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the sole support composite plate of the present invention along the length direction.

[0019] Figure 2 for Figure 1 The structure shown is a schematic diagram of the structure without the carbon fiber ply on the rear side.

[0020] Figure 3 It is a schematic diagram of the appearance structure of the sole support composite plate in the actual scenario of the present invention. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] like Figures 1 to 3 A sole support composite plate shown includes a hollow structure and a carbon fiber ply, wherein the carbon fiber ply includes a first carbon fiber ply 1 arranged on the upper and lower sides of the hollow structure 4 in the thickness direction, a second carbon fiber ply 2 arranged on the sides in the length and width directions of the hollow structure 4, and a third carbon fiber ply 3 arranged on the first carbon fiber ply 1 and the second carbon fiber ply 2; the first carbon fiber ply 1 is arranged in the full palm area of ​​the sole; the total ply thickness of the carbon fiber ply in the thickness direction is 1.5-2.5 mm.

[0023] The thickness of the hollow structure 4 is less than 1.5 mm, and the thickness varies from the outermost side of the sole to the midfoot area of ​​the sole.

[0024] The ply angle of the composite carbon fiber cloth used to make the carbon fiber ply is 0 degree, 30 degrees, 45 degrees, 60 degrees or 90 degrees, wherein the ply angle of the composite carbon fiber cloth of the carbon fiber plies on the upper and lower sides in the thickness direction of the hollow structure is the angle between the fiber yarn in the composite carbon fiber cloth and the length direction of the sole; the ply angle of the composite carbon fiber cloth of the carbon fiber plies on the sides in the length direction and width direction of the hollow structure is the angle between the fiber yarn in the composite carbon fiber cloth and the thickness direction of the sole.

[0025] Preferably, the ply angle of the composite carbon fiber cloth of the first carbon fiber ply 1 is 0 degrees; and the ply angle of the composite carbon fiber cloth of the second carbon fiber ply 2 is 90 degrees.

[0026] Wherein, the number of plies of the third carbon fiber ply 3 is greater than 3.

[0027] Among them, the thickness of a single-layer carbon fiber ply is 0.08-0.2mm.

[0028] The carbon fiber ply is made of composite carbon fiber cloth, which is a composite carbon fiber woven cloth or a reset carbon fiber unidirectional cloth. The composite carbon fiber woven cloth is made of carbon fiber woven cloth impregnated with resin; the composite carbon fiber unidirectional cloth is made of unidirectionally arranged fibers impregnated with resin. The carbon fiber woven cloth is woven with carbon fiber yarn, or woven with carbon fiber and one selected from basalt fiber and glass fiber; the unidirectionally arranged fibers in the composite carbon fiber unidirectional cloth are carbon fibers, or composite fibers including carbon fibers and a certain proportion of basalt fibers or glass fibers.

[0029] The sole support composite plate is made by a compression molding process or a winding molding process; before molding, a corresponding carbon fiber ply is laid on the airbag, and during the molding process, the airbag is inflated to form a hollow structure after molding.

[0030] The present invention also provides a sole, which comprises the above-mentioned sole supporting composite plate.

[0031] Example 1

[0032] like Figures 1 to 3 A sole support composite plate shown in the figure includes a hollow structure and a carbon fiber ply, wherein the carbon fiber ply includes a first carbon fiber ply 1 arranged on the upper and lower sides of the hollow structure 4 in the thickness direction, a second carbon fiber ply 2 arranged on the sides in the length direction and width direction of the hollow structure 4, and a third carbon fiber ply 3 arranged on the first carbon fiber ply 1 and the second carbon fiber ply 2; the first carbon fiber ply 1 is arranged in the full palm area of ​​the sole; the total ply thickness of the carbon fiber ply in the thickness direction is 1.5 mm.

[0033] The thickness of the hollow structure 4 is less than 1.5 mm, and the thickness varies from the outermost side of the sole to the midfoot area of ​​the sole.

[0034] The ply angle of the composite carbon fiber cloth of the first carbon fiber ply 1 is 0 degrees; the ply angle of the composite carbon fiber cloth of the second carbon fiber ply 2 is 90 degrees. The ply angle of the composite carbon fiber cloth of the third carbon fiber ply 3 in the thickness direction is 0 degrees. The ply angle of the composite carbon fiber cloth of the third carbon fiber ply 3 on the side of the length direction and width direction of the hollow structure 4 is 0 degrees.

[0035] The third carbon fiber ply 3 has three plies; the thickness of a single carbon fiber ply is 0.1 mm.

[0036] In this embodiment 1, the carbon fiber ply is made of composite carbon fiber cloth, which is a composite carbon fiber woven cloth. The composite carbon fiber woven cloth is made of carbon fiber woven cloth impregnated with thermoplastic resin material; the carbon fiber woven cloth is woven with carbon fiber yarn.

[0037] Example 2

[0038] like Figures 1 to 3 A sole support composite plate shown includes a hollow structure and a carbon fiber ply, wherein the carbon fiber ply includes a first carbon fiber ply 1 arranged on the upper and lower sides of the hollow structure 4 in the thickness direction, a second carbon fiber ply 2 arranged on the sides in the length and width directions of the hollow structure 4, and a third carbon fiber ply 3 arranged on the first carbon fiber ply 1 and the second carbon fiber ply 2; the first carbon fiber ply 1 is arranged in the full palm area of ​​the sole; the total ply thickness of the carbon fiber ply in the thickness direction is 2.5 mm.

[0039] The thickness of the hollow structure 4 is less than 1.5 mm, and the thickness varies from the outermost side of the sole to the midfoot area of ​​the sole.

[0040] The ply angle of the composite carbon fiber cloth of the first carbon fiber ply 1 is 0 degrees; the ply angle of the composite carbon fiber cloth of the second carbon fiber ply 2 is 90 degrees. The ply angle of the composite carbon fiber cloth of the third carbon fiber ply 3 in the thickness direction is 0 degrees. The ply angle of the composite carbon fiber cloth of the third carbon fiber ply 3 on the side of the hollow structure in the length direction and the width direction is 0 degrees.

[0041] The number of layers of the third carbon fiber ply 3 is 4; the thickness of a single carbon fiber ply is 0.15 mm.

[0042] In this embodiment 2, the carbon fiber ply is made of composite carbon fiber cloth, and the composite carbon fiber cloth is composite carbon fiber unidirectional cloth. The composite carbon fiber woven cloth is made of unidirectionally arranged carbon fibers impregnated with thermoplastic resin material.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sole support composite plate, characterized in that: It includes a hollow structure and a carbon fiber ply, wherein the carbon fiber ply includes a first carbon fiber ply arranged on the upper and lower sides of the hollow structure in a thickness direction, a second carbon fiber ply arranged on the side surfaces of the hollow structure in a length direction and a width direction, and a third carbon fiber ply arranged on the first carbon fiber ply and the second carbon fiber ply; the first carbon fiber ply is arranged in the full palm area of ​​the sole; the total ply thickness of the carbon fiber ply in the thickness direction is 1.5-2.5mm.

2. A sole support composite plate according to claim 1, characterized in that: The thickness of the hollow structure is less than 1.5 mm, and the thickness varies from the outermost side of the sole to the midfoot area of ​​the sole.

3. The sole support composite plate according to claim 1, characterized in that: The ply angle of the composite carbon fiber cloth used to make the carbon fiber ply is 0 degree, 30 degrees, 45 degrees, 60 degrees or 90 degrees, wherein the ply angle of the composite carbon fiber cloth of the carbon fiber plies on the upper and lower sides in the thickness direction of the hollow structure is the angle between the fiber yarn in the composite carbon fiber cloth and the length direction of the sole; the ply angle of the composite carbon fiber cloth of the carbon fiber plies on the sides in the length direction and width direction of the hollow structure is the angle between the fiber yarn in the composite carbon fiber cloth and the thickness direction of the sole.

4. A sole support composite plate according to claim 3, characterized in that: The plying angle of the composite carbon fiber cloth of the first carbon fiber ply is 0 degrees; the plying angle of the composite carbon fiber cloth of the second carbon fiber ply is 90 degrees.

5. The sole support composite plate according to claim 1, characterized in that: The number of plies of the third carbon fiber ply is greater than 3.

6. The sole support composite plate according to claim 1, characterized in that: The thickness of a single carbon fiber layer is 0.08-0.2mm.

7. The sole support composite plate according to claim 1, characterized in that: The carbon fiber ply is made of composite carbon fiber cloth, and the composite carbon fiber cloth is composite carbon fiber woven cloth or reset carbon fiber unidirectional cloth.

8. The sole support composite plate according to claim 7, characterized in that: The composite carbon fiber woven cloth is made of carbon fiber woven cloth impregnated with resin material; the composite carbon fiber unidirectional cloth is made of unidirectionally arranged fibers impregnated with resin material.

9. The sole support composite plate according to claim 8, characterized in that: The carbon fiber woven cloth is woven with carbon fiber yarn, or is woven with a mixture of carbon fiber and one selected from basalt fiber and glass fiber; the unidirectionally arranged fibers in the composite carbon fiber unidirectional cloth are carbon fibers, or are composite fibers including carbon fibers and a certain proportion of basalt fibers or glass fibers.

10. A shoe sole, characterized in that: The invention comprises the sole supporting composite plate as described in any one of claims 1 to 9.

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