Multi-layer composite carbon fiber sole

Abstract

The utility model discloses a multi-layer composite carbon fiber shoe sole, and relates to the technical field of shoe soles. The shoe sole comprises a shoe sole body, the shoe sole body comprises PMI foam layers, carbon fiber layers, PC layers and EVA layers which are sequentially arranged from top to bottom, the PMI foam layers and the carbon fiber layers are in multiple groups and are alternately arranged, the EVA layers are arranged on the outer sides of the PMI foam layers, the carbon fiber layers and the PC layers in a surrounding mode, the outer layers of the carbon fiber layers are covered with the polyarylester layers, and the carbon fiber layers are arranged on the outer sides of the polyarylester layers. And a plurality of reinforcing convex ribs are arranged on the carbon fiber layer adjacent to the PC layer along the longitudinal direction. By means of material layering optimization, structural function partitioning and detailed design, balance among light weight, supporting performance, buffering performance and air permeability is achieved, the service life of the shoe sole body is prolonged, and toughness and using comfort of the shoe sole body are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sole field, concretely relates to a multilayer composite carbon fiber sole. BACKGROUND

[0002] As an important part of shoes, the performance of the sole directly affects the use experience, functionality of the shoes, and the foot health and sports performance of the wearer. With the improvement of people's living standards and the diversification of the demand for various activities, the requirement for the performance of the sole is also getting higher and higher. However, the conventional waterproof and breathable assembly of the sole has insufficient breathability, sweat is easy to accumulate on the waterproof film, resulting in odor of the shoes, and the metal wire can damage the softness of the sole itself, reducing the comfort of wearing.

[0003] A patent with the patent announcement number CN221785479U discloses a breathable and comfortable sole. The device prevents sweat from entering the air exchange channel through the first waterproof and breathable layer, prevents foreign matter from entering the air exchange channel through the fine mesh layer, improves the elasticity and breathability of the sole through the elastic support column and the air exchange channel groove, prevents sweat and foreign matter from entering the air exchange channel groove through the second waterproof and breathable layer and the puncture-proof layer, absorbs sweat through the soft sweat-absorbing layer to keep the inside of the shoe dry, and exchanges air through the air exchange channel to effectively improve the breathability of the sole. The device has high breathability and sweat-absorbing properties, and has a damping effect, which can ensure that the inside of the shoe is dry and odor-free, and has high comfort. However, the device has multiple elastic support columns, and the second waterproof and breathable layer, the puncture-proof layer, and the soft sweat-absorbing layer have poor buffering effect and insufficient toughness, thereby reducing the comfort of use of the user.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide a multilayer composite carbon fiber sole, which solves the problems in the background art.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is as follows:

[0007] A multilayer composite carbon fiber sole comprises a sole body, which comprises PMI foam layers, carbon fiber layers, PC layers, and EVA layers arranged from top to bottom, the PMI foam layers and the carbon fiber layers are multiple groups and are arranged alternately, and the EVA layers are arranged in a surrounding manner outside the PMI foam layers, the carbon fiber layers, and the PC layers.

[0008] A polyarylate layer is covered on the outer layer of the carbon fiber layer, and the carbon fiber layer adjacent to the PC layer is provided with multiple reinforcing ribs in the longitudinal direction.

[0009] Optionally, the thickness of the carbon fiber layer is set between 0.25mm and 0.4mm.

[0010] Optionally, the thickness of the PMI foam layer is set between 0.5mm and 1.5mm.

[0011] Optionally, a reinforcing pad in a convex shape is fixedly connected between the forefoot region and the arch region of the sole body.

[0012] Optionally, the forefoot region of the sole body is curved upward, and the angle of the curve is between 10° and 20°.

[0013] Optionally, a plurality of first grooves and second grooves are formed on the bottom of the sole body.

[0014] Optionally, a logo area and a plurality of sets of cushion pads are fixedly connected to the bottom of the sole body.

[0015] Optionally, a gauze net is fixedly connected to the top of the sole body.

[0016] After the above technical solution is adopted, the present application has the following advantages compared with the prior art. Of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0017] 1. By setting the sole body, the polyarylate layer and the reinforcing ribs, the bending stiffness of the carbon fiber layer is enhanced by the reinforcing ribs to prevent excessive deformation of the midfoot, and by optimizing the material layering, structure function zoning and detail design, a balance is achieved between light weight, support, cushioning and breathability. By setting multiple structures, the service life of the sole body is prolonged, and the toughness and comfort of the sole body are improved.

[0018] 2. By setting the reinforcing pad and the gauze net, the foot shape is fitted by the reinforcing pad to disperse the pressure on the sole and reduce the risk of arch collapse, and the rigidity of the midfoot region is improved. The air circulation is promoted by the pores of the gauze net to reduce the hot feeling of the foot and improve the wearing stability.

[0019] 3. By setting the first grooves and the second grooves, the flexible region is formed by the first grooves and the second grooves, which allows the sole body to deform when bent, enhances the naturalness of gait, and reduces the amount of material used without affecting the strength of the sole body.

[0020] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings

[0022] In the drawings:

[0023] Figure 1 It is the whole structure schematic view of the utility model;

[0024] Figure 2 It is the utility model Figure 1 Another perspective structure schematic view;

[0025] Figure 3 It is the front view of the utility model;

[0026] Figure 4 It is the bottom view of the utility model;

[0027] Figure 5 It is the structure schematic view of the utility model sole body;

[0028] Figure 6 It is the structure schematic view of the utility model screen.

[0029] In the drawings, the component list represented by each mark is as follows:

[0030] 1, reinforcing pad;2, first groove body;3, second groove body;4, reinforcing rib;5, polyarylate layer;6, sole body;61, EVA layer;62, PC layer;63, carbon fiber layer;64, PMI foam layer;7, cushion pad;8, mark area;9, screen.

[0031] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0032] The utility model will now be described in further detail in conjunction with the drawings.

[0033] Please refer to Figures 1-6 As shown in the figure, in the embodiment, a multi-layer composite carbon shoe sole is provided, which comprises a sole body 6, which comprises a PMI foam layer 64, a carbon fiber layer 63, a PC layer 62 and an EVA layer 61 arranged in turn from top to bottom, the PMI foam layer 64 and the carbon fiber layer 63 are in multiple groups and are arranged alternately, the EVA layer 61 is arranged in a surrounding manner outside the PMI foam layer 64, the carbon fiber layer 63 and the PC layer 62, a polyarylate layer 5 covers the outer layer of the carbon fiber layer 63, and the carbon fiber layer 63 adjacent to the PC layer 62 is provided with a plurality of reinforcing ribs 4 in the longitudinal direction.

[0034] Specifically, in the present embodiment, by alternately arranging the PMI foam layer 64 and the carbon fiber layer 63, the multi-layer composite structure improves the support performance, realizes the rigid-flexible balance through material complementation, and the low-density characteristics of the carbon fiber layer 63 and the PMI foam layer 64 reduce the overall weight; at the same time, the PC layer 62 provides toughness and impact resistance, and the EVA layer surrounds the outside to enhance elasticity and wear resistance, secondly, by covering the outer layer of carbon fiber, the brittle fracture of carbon fiber is prevented and the surface scratch resistance is improved, the bending stiffness of the carbon fiber layer 63 is enhanced by reinforcing the ribs 4, the midfoot is prevented from excessive deformation, the overall structure is connected closely, and through material layering optimization, structure function partition and detail design, a balance is achieved between light weight, support, cushioning and breathability, and through the arrangement of multiple structures, the service life of the sole body 6 is prolonged, and the toughness and use comfort of the sole body 6 are improved.

[0035] It should be noted that in the present embodiment, the sole body 6 is suitable for sports that require high response speed (such as marathons, basketball), balancing competitive performance and comfort, at the same time, the polyarylate layer 5 and the EVA layer 61 protect the internal structure and prolong the service life, the layers of materials in the sole body 6 are tightly combined through resin adhesive or hot pressing process (such as epoxy resin hot pressing curing at 140-160°C), which ensures effective stress transfer, secondly, the PMI foam in the sole body 6 absorbs impact force, and the carbon fiber rigidity provides energy rebound, further, in the present embodiment, the reinforcing pad 1 is arranged in the longitudinal direction of the sole, i.e. the long direction of the sole.

[0036] In the present embodiment, as shown in Figure 6 , the thickness of the carbon fiber layer 63 is set to be between 0.25mm and 0.4mm, specifically, the thinner carbon fiber layer 63 reduces the weight of the sole body 6, which is suitable for racing needs, and the lower limit of the thickness ensures the bending resistance performance to avoid excessive bending deformation.

[0037] In the present embodiment, as shown in Figure 6 , the thickness of the PMI foam layer 64 is set to be between 0.5mm and 1.5mm, specifically, the PMI foam layer 64 relieves the rigid touch of carbon fiber and reduces foot fatigue after long-time exercise, and the upper limit of the thickness avoids the collapse of the sole body 6 caused by the excessive thickness of the foam layer, which maintains the support performance, it should be noted that in the present embodiment, the density of the PMI foam layer 64 is about 40kg / m 3 to 60kg / m 3 , which has the advantages of light weight and high elastic modulus, and is suitable for sandwich structure, secondly, the thickness of the PMI foam layer 64 needs to match the number of the carbon fiber layer 63.

[0038] In the present embodiment, as shown in Figure 1As shown, the forefoot region and the arch region of the sole body 6 are fixedly connected with a convex reinforcing pad 1, specifically, the reinforcing pad 1 fits the foot shape, disperses the plantar pressure, reduces the risk of arch collapse, and improves the rigidity of the midfoot region, and it should be noted that the material of the reinforcing pad 1 can be selected from EVA, TPU and the like.

[0039] In this embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the forefoot region of the sole body 6 is curved upward, and the bending angle is between 10° and 20°, specifically, the forefoot region is curved upward by 10°-20°, simulating the natural plantar flexion action, shortening the ground contact time, and the curved design makes the energy more concentrated on the forefoot when stepping on the ground, improving the running economy and reducing the load of the calf muscles in the stepping stage.

[0040] In this embodiment, as shown in Figure 2 and Figure 4 , a plurality of first grooves 2 and second grooves 3 are formed on the bottom of the sole body 6, specifically, the flexible region is formed by the first grooves 2 and the second grooves 3, allowing the sole body 6 to deform when bending, enhancing the naturalness of gait, and reducing the amount of material without affecting the strength of the sole body 6.

[0041] In this embodiment, as shown in Figure 2 and Figure 4 , the bottom of the sole body 6 is fixedly connected with a logo area 8 and a plurality of cushion pads 7, specifically, the logo area 8 and the plurality of cushion pads 7 are integrally formed with the EVA layer 61, the logo area 8 improves the product recognition, and the cushion pads 7 supplement the cushioning performance of the EVA layer 61, which is suitable for heavy weight or high intensity sports, and it should be noted that the material of the cushion pad 7 is the same as that of the EVA layer 61.

[0042] In this embodiment, as shown in Figure 6 , the top of the sole body 6 is fixedly connected with a gauze net 9, specifically, the gauze net 9 (such as polyester fiber or nylon mesh) covers the inner surface of the sole, the pores of the gauze net 9 promote air circulation, reduce the hot feeling of the foot, and improve the wearing stability.

[0043] Working principle:

[0044] Through alternately arranging the PMI foam layer 64 and the carbon fiber layer 63, the multi-layer composite structure improves the supporting performance, realizes the rigid-flexible balance through material complementation, the low-density characteristics of the carbon fiber layer 63 and the PMI foam layer 64 reduce the overall weight; meanwhile, the PC layer 62 provides toughness and impact resistance, the EVA layer surrounds the outside to enhance elasticity and wear resistance, secondly, through covering the outer layer of carbon fiber, the brittle fracture of carbon fiber is prevented and the surface scratch resistance is improved, the bending stiffness of the carbon fiber layer 63 is enhanced through the longitudinal ribs, the excessive deformation of the midfoot is prevented, the overall structure is connected closely, through material layer optimization, structure function partition and detail design, a balance is achieved between light weight, support, cushioning and breathability, through the arrangement of multiple groups of structures, the service life of the sole body 6 is prolonged, and the toughness and use comfort of the sole body 6 are improved.

[0045] The utility model is not limited to the above-mentioned embodiment, any person should know the structural change made under the inspiration of the utility model, any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model does not describe the technology, shape, structure part in detail and is the known technology.

Claims

1. A multi-layer composite carbon fiber shoe sole, characterized by, Comprising: a sole body (6) comprising PMI foam layers (64), carbon fiber layers (63), PC layers (62) and EVA layers (61) arranged in sequence from top to bottom, the PMI foam layers (64) and the carbon fiber layers (63) are multiple groups and are arranged alternately, the EVA layer (61) is arranged outside the PMI foam layer (64), the carbon fiber layer (63) and the PC layer (62) in a surrounding manner; a polyarylate layer (5) covering the outer layer of the carbon fiber layer (63), the carbon fiber layer (63) adjacent to the PC layer (62) is provided with a plurality of reinforcing ribs (4) in the longitudinal direction.

2. The multi-layered composite carbon fiber shoe sole according to claim 1, wherein, The thickness of the carbon fiber layer (63) is set to 0.25-0.4mm.

3. The multi-layered composite carbon fiber shoe sole according to claim 2, wherein, The thickness of the PMI foam layer (64) is set to 0.5-1.5mm.

4. The multi-layered composite carbon fiber shoe sole according to claim 1, wherein, The forefoot region and the arch region of the sole body (6) are fixedly connected with a convex reinforcing pad (1).

5. The multi-layer composite carbon fiber shoe sole according to claim 4, wherein, The forefoot region of the sole body (6) is curved upward, and the bending angle is 10-20°.

6. The multi-layered composite carbon fiber shoe sole according to claim 1, wherein, The bottom of the sole body (6) is provided with a plurality of first grooves (2) and second grooves (3).

7. The multi-layer composite carbon fiber shoe sole according to claim 6, wherein, The bottom of the sole body (6) is fixedly connected with a printing area (8) and a plurality of groups of cushion pads (7).

8. The multi-layer composite carbon fiber shoe sole according to claim 6, wherein, The top of the sole body (6) is fixedly connected with a gauze (9).

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