Biomass high-elastic sole and sports shoes

Abstract

The utility model provides a biomass high-elastic shoe sole, which is characterized in that a healthy, safe and environment-friendly biomass foaming material is made into an elastic light insole, and a hooping elastic piece is used for elastically hooping the insole to provide auxiliary elasticity and strength, specifically, a first patch and a second patch are arranged on two sides of the insole to form stress surfaces of side surfaces, so that the stress surfaces of the first patch and the second patch are uniformly distributed on the insole; the elastic stretching connecting piece with stretching elasticity is used for generating pulling force for the first patch and the second patch to be close to each other, so that the first patch and the second patch are tightly hooped on the two sides of the insole, when the insole is treaded, the insole is pressed to arch and deform towards the two sides, the first patch and the second patch are driven to stretch the elastic stretching connecting piece, and therefore the insole can be firmly attached to the insole. The elastic stretching connecting piece is arranged on the insole, so that the elastic stretching connecting piece generates clamping force on the insole to be arched towards the two sides to resist the insole to deform towards the two sides, the elasticity and compressive strength performance of the insole can be enhanced, and the compressive treading part of the insole is not prone to fatigue deformation on the basis of ensuring lasting elasticity. The utility model further provides a pair of sports shoes.

Description

Technical Field

[0001] This utility model relates to the field of daily life, specifically to a biomass high-elasticity shoe sole and sports shoes. Background Technology

[0002] Shoes are everyday necessities, and the consumption of shoe sole materials is enormous. The environmental and health performance of shoe sole materials has a long-term impact on wearers and the human living environment.

[0003] To address the aforementioned issues, Chinese invention patent CN202311637905.5 discloses a foamed shoe material composition based on biomass raw materials. The raw material components, by weight (100%), comprise: 0-45% bio-based TPAE, 0-45% bio-based TPU, 20-37% bio-based EVA, 22-35% bio-based POE, and 5-15% compatibilizer. The sum of the weight percentages of the bio-based TPAE and the bio-based TPU is 30-45%. The compatibilizer is a combination of C12-C36 alkyl-terminated polyester polyurethane and C12-C36 alkyl-terminated alkyl polyurethane in a weight ratio of 1:9 to 9:1. The C12-C36 alkyl-terminated polyester polyurethane is prepared by reacting a polyester polyurethane prepolymer with a first compound of the general formula CnH2n+1R1 at a molar ratio of NCO groups to R1 groups of 1:1-3, wherein R1 is a hydroxyl, primary amino, or secondary amino group, and n=12-36. The C12-C36 alkyl-terminated alkyl polyurethane is prepared by reacting an alkyl polyurethane prepolymer with a second compound of the general formula CmH2m+1R2 at a molar ratio of NCO groups to R2 groups of 1:1-3, wherein R2 is a hydroxyl, primary amino, or secondary amino group, and m = 12-36. The weight content of NCO groups in the polyester-based polyurethane prepolymer and the alkyl polyurethane prepolymer is 2-8%, respectively. The average molecular weight of the polyester diol used in the polyester-based polyurethane prepolymer is 300-1500. The alkyl diol used in the alkyl polyurethane prepolymer is a C12-C24 alkyl diol. The raw material components also include 0.5-3% peroxide curing agent, 0.5-1.5% nucleating agent, and 0.5-2% pigment, or a combination thereof. The peroxide curing agent is selected from one or a combination of dicumyl peroxide, di-tert-butyl peroxide, benzoyl peroxide, and bis(2,5-diphenyl) peroxide. The nucleating agent is selected from one or more combinations of nano-silica, nano-calcium carbonate, nano-titanium dioxide, nano-zinc oxide, nano-kaolin, nano-montmorillonite, and nano-attapulgite. A foamed shoe material is prepared as follows: The raw material components of the foamed shoe material composition are mixed and added to a screw extruder for extrusion granulation, then shaped in a mold, and foamed using supercritical fluid foaming technology; or, the remaining raw material components of the foamed shoe material composition, except for the peroxide vulcanizing agent, are mixed and added to a screw extruder for extrusion granulation to obtain initial granules; the initial granules are mixed and kneaded uniformly with the peroxide vulcanizing agent, then vulcanized in a mold, and foamed using supercritical fluid foaming technology.

[0004] This invention patent has solved the problems of biomass material foaming and midsole manufacturing to a certain extent based on environmental protection and health needs. However, in actual use, there are still problems with insufficient elasticity and comfort of the sole, and its practicality needs to be improved.

[0005] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0006] One objective of this invention is to provide a comfortable and practical biomass high-elasticity shoe sole.

[0007] The second objective of this utility model is to provide an elastic, comfortable and practical sports shoe.

[0008] To achieve the above objectives, this utility model adopts the following technical solution:

[0009] A biomass high-elasticity shoe sole includes a sole body; the sole body includes a midsole made of biomass material foam and an outsole disposed on the lower surface of the midsole; it also includes clamping elastic members clamped to both sides of the midsole; the clamping elastic members include a first patch disposed on one side of the midsole, a second patch disposed on the other side of the midsole, and an elastic tension connector connecting the first patch and the second patch.

[0010] The lower surface of the midsole has a notch for inserting the elastic tension connector, and the outsole is located below the elastic tension connector and sealed below the notch.

[0011] The notch is a strip-shaped groove that extends along the width of the sole.

[0012] There is a first gap between the inner wall of the slot and the elastic tension connector, and a second gap between the elastic tension connector and the outsole.

[0013] The elastic tension connector is an elastic resin strip with pre-tension. The elastic tension connector, the first patch, and the second patch are integrally injection molded.

[0014] Both the first and second patches are attached to the midsole via adhesive bonding.

[0015] The elastic clamp is located in the midsole at the part corresponding to the ball of the foot.

[0016] Two elastic tension connectors connect the first patch and the second patch, and the two elastic tension connectors are arranged in the front-to-back direction of the sole.

[0017] The elastic clamp is located in the midsole at the position corresponding to the heel of the human foot.

[0018] The rear ends of the first and second patches are connected by a heel elastic member surrounding the rear side of the midsole.

[0019] It also includes a U-shaped elastic element located on the upper surface of the midsole, which is positioned corresponding to the heel of the foot, with the opening of the U-shaped elastic element facing the front of the sole.

[0020] The U-shaped elastic element includes a connecting piece portion connected to the midsole and a vertical piece portion extending upward and connected to the upper.

[0021] An athletic shoe also includes an upper attached to the midsole.

[0022] Both the first and second patches are fixed to the side of the midsole.

[0023] The midsole has elastic clamping elements at both the ball of the foot and the heel.

[0024] By adopting the above technical solution, the biomass high-elasticity shoe sole of this utility model breaks through the traditional shoe sole structure. In actual use, this utility model can be combined with the upper, insole, etc. to form a complete shoe. The healthy, safe and environmentally friendly biomass foam material is made into an elastic and lightweight midsole. The midsole is elastically tightened by a clamping elastic element to provide auxiliary elasticity and strength. Specifically, the first patch and the second patch are set on both sides of the midsole to form the lateral force-bearing surface. The elastic tension connector with tensile elasticity generates a pulling force on the first patch and the second patch to bring them closer together, so that the first patch and the second patch are clamped on both sides of the midsole. When the midsole is stepped on, the midsole is compressed and wants to arch and deform to both sides, which will drive the first patch and the second patch to stretch the elastic tension connector. The elastic tension connector generates a clamping force on the midsole that wants to arch to both sides, resisting the deformation of the midsole to both sides. This can enhance the elasticity and compressive strength performance of the midsole. The pressure-bearing parts of the midsole are not easy to fatigue and deform while ensuring lasting elasticity. Compared with existing technologies, the biomass high-elastic shoe sole of this invention has advantages such as elasticity, comfort and practicality.

[0025] This utility model of sports shoes breaks through the traditional construction of sports shoes. In actual use, the midsole of the shoe is made of healthy, safe, and environmentally friendly biomass foam material, achieving the same effect as the aforementioned biomass high-elasticity sole. Compared with existing technologies, this utility model of sports shoes has advantages such as elasticity, comfort, and practicality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the shoe sole;

[0027] Figure 2 This is a top view diagram of the shoe sole structure;

[0028] Figure 3 This is a cross-sectional view of the shoe sole.

[0029] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0030] Figure 5 A three-dimensional structural diagram of one embodiment of the clamping elastic element;

[0031] Figure 6 A three-dimensional structural diagram of a second embodiment for clamping the elastic element;

[0032] Figure 7 This is a structural diagram of an athletic shoe.

[0033] In the picture:

[0034] 1-Sole body, 11-Midsole, 111-groove, 12-Outsole,

[0035] 2-Clamping elastic element, 21-First patch, 22-Second patch, 23-Elastic tension connector, 24-First gap, 25-Second gap, 26-Heel elastic element.

[0036] 3-U-shaped elastic element, 31-connecting piece, 32-vertical piece,

[0037] 4- Upper. Detailed Implementation

[0038] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0039] This utility model relates to a biomass high-elasticity shoe sole, such as... Figure 1-7As shown, the shoe includes a sole body 1; the sole body 1 includes a midsole 11 made of biomass foam and an outsole 12 disposed on the lower surface of the midsole 11; it also includes clamping elastic members 2 clamping both sides of the midsole 11; the clamping elastic members 2 include a first patch 21 disposed on one side of the midsole 11, a second patch 22 disposed on the other side of the midsole 11, and an elastic tension connector 23 connecting the first patch 21 and the second patch 22. In actual use, this utility model can be combined with the upper 4, insole, etc. to form a complete shoe, using healthy, safe and environmentally friendly biomass foam material to make an elastic lightweight midsole 11, and using the clamping elastic members 2 to provide auxiliary elasticity and strength by elastically clamping the midsole 11. Specifically, the first patch 21 and the second patch 22 are disposed on both sides of the midsole 11 to form a side force-bearing surface, and the elastic tension connector 23 with tensile elasticity generates a pulling force that brings the first patch 21 and the second patch 22 closer together, so that the first patch 21... Patches 21 and 22 are fastened to both sides of the midsole 11. When the midsole 11 is stepped on, it is compressed and tends to arch to both sides. This causes the first and second patches 21 and 22 to stretch the elastic tension connector 23, which in turn exerts a clamping force on the midsole 11, resisting its lateral deformation. This enhances the elasticity and compressive strength of the midsole 11, making it less prone to flattening. The pressure-bearing parts of the midsole 11 maintain durable elasticity while resisting fatigue deformation. The midsole 11 can be made of one or more of the following materials: rice bran, straw, or other plant fibers, or bio-based TPAE, bio-based TPU, bio-based EVA, and bio-based POE, through foaming. This material is biodegradable and environmentally friendly.

[0040] The specific structure can be as follows: the lower surface of the midsole 11 has a groove 111 for the insertion of the elastic tension connector 23, and the outsole 12 is located below the elastic tension connector 23 and sealed below the groove 111. Before installing the outsole 12, the elastic tension connector 23 can be inserted into the groove 111, so that the elastic tension connector 23 is within the groove 111, and the first patch 21 and the second patch 22 are on both sides of the midsole 11. Then, the outsole 12 is placed on the lower surface of the midsole 11. The outsole 12 can seal the opening of the groove 111 and ensure the strength of the midsole 11, making the midsole 11 less prone to stress concentration and damage at the groove 111. Moreover, the groove 111 is used to limit, support, and shape the elastic tension connector 23, ensuring functionality. The first patch 21 and the second patch 22 can be bonded and fixed to both sides of the midsole 11 using shoe adhesive. Specifically, the groove 111 is a strip-shaped groove extending along the width of the sole, which can be matched with the elongated elastic tension connector 23 to ensure the performance of the elastic tension connector 23. The first patch 21 and the second patch 22 can be sealed at both ends of the groove 111 to prevent water, sand, dust, and other debris from entering the groove 111 and affecting the performance release of the elastic tension connector 23. Furthermore, the lower ends of both the first patch 21 and the second patch 22 can be connected to the outsole 12 to ensure a seal at both ends of the groove 111. A further specific structure can be provided, with a first gap 24 between the inner wall of the groove 111 and the elastic tension connector 23, and a second gap 25 between the elastic tension connector 23 and the outsole 12. This structure utilizes the first gap 24 and the second gap 25 to keep the elastic tension connector 23 suspended, preventing friction and spatial interference from affecting the extension and contraction of the elastic tension connector 23, ensuring efficient performance of its elasticity, and preventing wear. To ensure the performance, strength, and structural stability of the elastic tension connector 23, the specific structure can be as follows: the elastic tension connector 23 is an elastic resin strip with pre-tension force, and the elastic tension connector 23, the first patch 21, and the second patch 22 are integrally injection molded. Simultaneously, both the first patch 21 and the second patch 22 are connected to the midsole 11 by adhesive bonding. The elastic tension connector 23 is an elastic resin strip with pre-tension force, meaning the original length of the elastic tension connector 23 is less than the length of the notch 111. After the elastic tension connector 23 is installed, the midsole 11 pre-stretches the elastic tension connector 23, causing the elastic tension connector 23 to generate a pre-tensioning tensile force on the midsole 11. The elastic tension connector 23, or the entire clamping elastic element 2, can be made of resin materials with good elastic properties such as TPU, rubber, TPR, or TPE. The first patch 21 and the second patch 22 can also be connected to the midsole 11 by heat fusion pressing or sewing.

[0041] To ensure the elasticity of the midsole 11 in areas susceptible to foot pressure, a specific structure could be designed such that a clamping elastic element 2 is positioned on the midsole 11 corresponding to the foot. Since the area of ​​the midsole 11 corresponding to the foot is relatively large, to provide balanced and effective elastic support to this area, two elastic tension connectors 23 are further connected between the first patch 21 and the second patch 22, arranged in the front-to-back direction of the sole.

[0042] To ensure the elasticity of the midsole 11 in areas susceptible to pressure from the human heel, the specific structure can be such that the clamping elastic element 2 is located on the midsole 11 corresponding to the human heel. Since the pressure from the human heel is greater and more concentrated, to provide effective elastic support to this concentrated pressure area, the rear ends of the first patch 21 and the second patch 22 are further connected by a heel elastic element 26 surrounding the rear side of the midsole 11. That is, based on the elastic tension connector 23 acting as an elastic tension rib, the heel elastic element 26 and the first patch 21 and the second patch 22 are used to clamp the sides and rear side of the midsole 11 from all directions, effectively resisting the deformation of the midsole 11 to the sides and rear under pressure, ensuring the elasticity and compressive strength of the midsole 11 in this area, and preventing it from being flattened.

[0043] To further ensure the strength and elasticity of the midsole 11 corresponding to the heel area, the specific structure may include a U-shaped elastic element 3 disposed on the upper surface of the midsole 11. The U-shaped elastic element 3 is disposed at the heel area, with its opening facing the front of the sole. The U-shaped elastic element 3 is positioned around the sides and rear of the heel, and cooperates with the clamping elastic element 2 located therein to provide three-dimensional elastic support to this concentrated pressure area, ensuring the elasticity, strength, and comfort of the heel area of ​​the midsole 11. Furthermore, the upper surface of this concentrated pressure area is less prone to deformation due to individual gait deviation. Specifically, the U-shaped elastic element 3 may include a connecting piece 31 connected to the midsole 11, and a vertical piece 32 extending upwards and connected to the upper 4. The connecting piece 31 facilitates a firm connection between the U-shaped elastic element 3 and the upper surface of the midsole 11, and effectively supports the upright piece 32. The upright piece 32 facilitates a firm connection between the U-shaped elastic element 3 and the upper 4, especially the heel counter. Furthermore, since the upright piece 32 and the connecting piece 31 are on different planes, they can support and reinforce each other, ensuring the elasticity and strength of the entire U-shaped elastic element 3. Specifically, the U-shaped elastic element 3 can be positioned within the inner ring of the clamping elastic element 2, creating an internal and external fit between the U-shaped elastic element 3 and the clamping elastic element 2, providing three-dimensional elastic support to the concentrated pressure area. Alternatively, the heel elastic element 26, the elastic tension connector 23, the first patch 21, and the second patch 22 can be integrally injection molded. The elastic tension connector 23, the U-shaped elastic element 3, or the entire clamping elastic element 2 can be made of resin materials with good elastic properties, such as TPU, rubber, TPR, or TPE. The U-shaped elastic element 3, the first patch 21, and the second patch 22 can be connected to the midsole 11 by means of gluing, hot-melt pressing, and sewing. Specifically, the midsole 11 can have a matching receiving groove for accommodating the connecting piece 31, so that the connecting piece 31 does not protrude too much from the upper surface of the midsole 11 and affect wearing comfort.

[0044] An athletic shoe also includes an upper 4 attached above the midsole 11. In practical use, the midsole 11 of this invention is made of healthy, safe, and environmentally friendly biomass foam material. The midsole 11 is elastically tightened by a clamping elastic element 2 to provide auxiliary elasticity and strength. Specifically, the first patch 21 and the second patch 22 are located on both sides of the midsole 11 to form lateral force-bearing surfaces. An elastic tension connector 23 with tensile elasticity generates a pulling force that brings the first patch 21 and the second patch 22 closer together, tightening them on both sides of the midsole 11. When the midsole 11 is stepped on, it is compressed and tends to arch to both sides, causing the first patch 21 and the second patch 22 to stretch the elastic tension connector 23. This elastic tension connector 23 then exerts a clamping force on the midsole 11, resisting its lateral deformation and enhancing its elasticity and compressive strength. The pressure-bearing parts of the midsole 11 are not prone to fatigue deformation while maintaining durable elasticity. Specifically, the first patch 21 and the second patch 22 are both fixed to the side of the midsole 11. The midsole 11 has elastic clamping elements 2 at the points corresponding to the ball of the foot and the heel. It also includes insoles to ensure wearing comfort.

[0045] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A bio-based high performance sole, comprising a sole body; the sole body comprising a midsole foamed from a bio-based material, and an outsole disposed on a lower surface of the midsole; characterized in that: The elastic tightening member includes a first patch arranged on one side of the midsole, a second patch arranged on the other side of the midsole, and an elastic tensile connecting member connected between the first patch and the second patch.

2. The high elastic sole of biomass of claim 1, wherein: The lower surface of the midsole is formed with a slot for accommodating the elastic tensile connecting member, and the outsole is arranged below the elastic tensile connecting member and blocks the slot.

3. The high elastic sole of biomass of claim 2, wherein: The slot is a strip-shaped slot extending along the width direction of the sole.

4. The high elastic sole of biomass of claim 3, wherein: The first gap is between the inner wall of the slot and the elastic tensile connecting member, and the second gap is between the elastic tensile connecting member and the outsole.

5. The high elastic sole of biomass of claim 3, wherein: The elastic tensile connecting member is an elastic resin strip with a pre-tightening force, and the elastic tensile connecting member, the first patch and the second patch are integrally injection molded.

6. The high elastic sole of biomass of claim 5, wherein: The first patch and the second patch are connected to the midsole by gluing.

7. The high elastic sole of biomass according to any one of claims 1-6, characterized in that: The elastic tightening member is arranged at the part of the midsole corresponding to the human foot.

8. The high elastic sole of biomass of claim 7, wherein: Two elastic tensile connecting members are connected between the first patch and the second patch, and the two elastic tensile connecting members are arranged in the front-rear direction of the sole.

9. The high elastic sole of biomass according to any one of claims 1-6, characterized in that: The elastic tightening member is arranged at the part of the midsole corresponding to the human heel.

10. The high elastic sole of biomass of claim 9, wherein: The rear ends of the first patch and the second patch are connected by a heel elastic member surrounding the lateral surface of the rear end of the midsole.

11. The high elastic sole of biomass according to any one of claims 1-6, characterized in that: A U-shaped elastic member is arranged on the upper surface of the midsole, the U-shaped elastic member is arranged at the part corresponding to the human heel, and the opening of the U-shaped elastic member faces the front of the sole.

12. The high elastic sole of biomass of claim 11, wherein: The U-shaped elastic member includes a connecting piece part connected to the midsole, and a standing piece part extending upward and connected to the upper.

13. A sports shoe based on the high elastic sole of biomass according to any one of claims 1-12, characterized in that: The upper is connected above the midsole.

14. The sports shoe according to claim 13, characterized in that: The first patch and the second patch are fixed on the lateral surface of the midsole.

15. The sports shoe according to claim 13, characterized in that: The part of the midsole corresponding to the human foot and the part corresponding to the human heel are both provided with an elastic tightening member.

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