Multi-layer composite foaming outsole

Abstract

The utility model discloses a multi-layer composite type foaming outsole which comprises a base material layer, a foam hole layer adhered to the top end of the base material layer, a buffer structure arranged in the foam hole layer, a reinforcing structure arranged in the foam hole layer, and second anti-skid grains arranged at the top end of the foam hole layer. The rubber layer is installed in the foam hole layer, the foam hole layer and the base material layer are connected through the springs, gaps are supplemented through the EVA filling layer, the EVA filling layer has the good buffering performance and the good damping effect, the EVA filling layer and the springs can absorb impact and vibration borne by the feet in the exercise process, the rubber supporting columns are arranged in the springs, and therefore the rubber supporting columns are not prone to falling off. The air cushions are arranged in the base material layer, it can be guaranteed that the springs do not deform or incline due to the influence of the stress direction after multiple times of deformation, the air cushions at the two ends in the base material layer further absorb pressure at the heel, support is provided for the heel in the compression and reduction process, a user feels more comfortable and saves more labor when doing sports and walking, and the user experience is improved. Therefore, the purpose that the foaming outsole can absorb vibration during movement is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe manufacturing, in particular to a multi-layer composite foaming outsole. Background Art

[0002] Foam outsole refers to the sole made by foaming process. The production process of foam outsole mainly includes the steps of raw material preparation, mixing and stirring, foaming molding, cooling and curing, finishing and inspection. Among them, foaming molding is the key link, which determines the final pore structure and performance of the sole. During the foaming process, parameters such as temperature, pressure and time need to be strictly controlled to obtain the ideal pore structure and physical properties. The structure of the foam outsole is mainly composed of a pore layer and a base material layer. The pore layer is a layer of tiny bubbles formed during the foaming process, which gives the sole the characteristics of lightness, softness and good elasticity. The material layer is the main supporting part of the sole, which determines the strength and wear resistance of the sole. By adjusting the ratio and composition of the foam layer and the base material layer, sole materials with different performances can be obtained. The application scenarios of foam outsoles are very wide, covering almost all areas of shoe manufacturing. In sports shoes, foam outsoles can provide better cushioning and comfort, which helps to improve athletic performance; in casual shoes, foam outsoles can bring a lighter, softer and more fashionable wearing experience; in children's shoes, foam outsoles pay more attention to safety and comfort, and can protect children's foot health.

[0003] To this end, China's patent application, CN207202225U, discloses a foam outsole shoe comprising a sole and an upper. The sole comprises a foam outsole and a midsole. The foam outsole is provided with a circular groove, the bottom of which has ventilation holes that are open to the outside. The bottom of the circular groove and above the ventilation holes are covered with a waterproof breathable membrane. The circular groove is filled with a highly elastic breathable sponge, and the top of the circular groove is covered with a breathable cloth. In this foam outsole shoe, the highly elastic breathable sponge in the circular groove is ventilated and can effectively support the entire outsole. When a person walks, the sole of the foot steps on the foam outsole, and the gas inside the shoe can be discharged to the outside through the highly elastic breathable sponge with dense air holes and the ventilation holes at the bottom of the circular groove.

[0004] Today's foam outsoles can basically meet people's usage needs, but there are still some problems. The specific problems are as follows:

[0005] 1. The foam outsole is difficult to absorb vibrations during exercise. During exercise, the feet will bear huge impact forces from the ground. At the same time, long-term exercise or walking will also cause foot fatigue, affecting the user's exercise and walking. The foam outsole is needed to absorb the impact force on the feet and relieve the pressure on the feet.

[0006] 2. The foam outsole is difficult to prevent from breaking. When walking, running or performing other activities, the foam outsole will continue to deform. Repeated deformation can easily cause cracks or even direct breakage in the foam outsole, which may cause the wearer to lose balance or fall, resulting in accidental injury. Utility Model Content

[0007] The utility model aims to provide a multi-layer composite foam outsole, which is used to solve the defects of the existing foam outsole, such as difficulty in absorbing vibration during exercise and difficulty in preventing breakage.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a multi-layer composite foam outsole, comprising a substrate layer;

[0009] A cellular layer is bonded to the top of the substrate layer, and a buffer structure is provided inside the cellular layer;

[0010] The buffer structure includes a rubber layer, a rubber pillar, a spring, an EVA filling layer and an air cushion. The rubber layer is arranged inside the cellular layer. The bottom end of the rubber layer is integrally formed with a rubber pillar. The outer side of the rubber pillar is provided with a spring. The outer side of the spring is provided with an EVA filling layer.

[0011] The interior of the cellular layer is provided with a reinforcement structure, the bottom end of the substrate layer is provided with a protective structure, and the top end of the cellular layer is provided with a second anti-slip pattern.

[0012] When using, first fix the foam outsole to the midsole and the bottom of the upper by bonding or other means, and then it can be used. The base material layer improves the overall strength and provides support. The foam layer is soft and elastic. The springs and EVA filling layer installed in the foam layer can provide support to every part of the user's feet. It uses its own elasticity to absorb the impact and vibration of the user's feet when walking and exercising, and relieves the pressure on the feet. The nylon braided layer structurally reduces the possibility of the foam layer breaking. When installing the midsole, the second anti-slip pattern can enhance the friction between the foam outsole and the midsole, making it easier to install and use.

[0013] Furthermore, the spring is elastic and is elastically connected to the rubber layer, so as to absorb the impact and vibration on the user's feet when walking and exercising, thereby relieving the pressure on the feet.

[0014] Furthermore, the air cushions are arranged at both ends inside the base material layer, and the air cushions are symmetrically distributed about the central axis of the base material layer. The air cushions can provide additional support for the heels and reduce the pain caused by long-term exercise.

[0015] Furthermore, the reinforcement structure includes a nylon braided layer, connecting columns and connecting grooves. The nylon braided layer is arranged inside the foam layer, and the top of the nylon braided layer is integrally formed with a connecting column to prevent the foam outsole from cracking or even breaking during repeated pulling and bending.

[0016] Furthermore, the connecting grooves are opened inside the cellular layer, and the connecting grooves are arranged at equal intervals inside the cellular layer, so as to evenly distribute the pulling force on the nylon braided layer.

[0017] Furthermore, a clamping block is provided on the outer side wall of the top end of the connecting column, and a clamping slot is provided on the inner side wall of the connecting groove. The connecting column and the connecting groove are clamped together, which is more stable and not easy to deform or shift.

[0018] Furthermore, the protective structure includes a first anti-slip pattern, an epoxy resin coating, a polyurethane coating and an acrylic coating. The first anti-slip pattern is arranged at the bottom end of the substrate layer, the outside of the first anti-slip pattern is provided with a polyurethane coating, the outside of the polyurethane coating is provided with an epoxy resin coating, and the acrylic coating is arranged at the top of the foam layer, which greatly extends the service life of the foam outsole.

[0019] The utility model provides a multi-layer composite foam outsole, which has the following advantages: a rubber layer is installed inside the cellular layer, the cellular layer and the base material layer are connected by multiple springs, and the gap is filled with an EVA filling layer. The EVA filling layer has excellent buffering performance and shock absorption effect, and can absorb the impact and vibration of the foot during exercise together with the spring. The spring has a rubber support inside to ensure that the spring will not be deformed or skewed due to the influence of the force direction after multiple deformations. The air cushions at both ends of the base material layer further absorb the pressure on the heel and provide support for the heel during the compression and reduction process, making the user more comfortable and labor-saving when exercising and walking, thereby achieving the purpose of the foam outsole being able to absorb vibration during exercise.

[0020] By installing a nylon braided layer inside the porous layer, the nylon braided layer has high strength and wear resistance. When the foam outsole is bent and deformed, it can share the pulling force it receives, avoiding cracks or even breaks in the foam outsole during repeated pulling and bending. It can effectively improve the tear resistance of the foam outsole and extend the overall service life. At the same time, the nylon braided layer is light and soft, and will not bring burden and discomfort to the user. The nylon braided layer is installed in the porous layer by clamping the connecting column and the connecting groove, which is more stable and not easy to deform and shift, so as to achieve the purpose of preventing the foam outsole from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view structural diagram of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0025] Figure 5 For the utility model Figure 4 Schematic diagram of the enlarged structure of the local section at point A in the middle.

[0026] Explanation of the reference numerals in the figure: 1. Base material layer; 2. Foam layer; 3. Buffer structure; 301. Rubber layer; 302. Rubber pillar; 303. Spring; 304. EVA filling layer; 305. Air cushion; 4. Reinforcement structure; 401. Nylon braided layer; 402. Connecting column; 403. Connecting groove; 5. Protective structure; 501. First anti-slip pattern; 502. Epoxy resin coating; 503. Polyurethane coating; 504. Acrylic coating; 6. Second anti-slip pattern. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 The present invention provides an embodiment of a multi-layer composite foam outsole, comprising a substrate layer 1.

[0029] The top of the substrate layer 1 is bonded with a cellular layer 2, and a buffer structure 3 is arranged inside the cellular layer 2. The buffer structure 3 includes a rubber layer 301, a rubber pillar 302, a spring 303, an EVA filling layer 304 and an air cushion 305. The rubber layer 301 is arranged inside the cellular layer 2, and the bottom end of the rubber layer 301 is integrally formed with a rubber pillar 302. A spring 303 is arranged on the outside of the rubber pillar 302. The spring 303 is elastic and elastically connected to the rubber layer 301. An EVA filling layer 304 is arranged on the outside of the spring 303. The air cushions 305 are arranged at both ends inside the substrate layer 1, and the air cushions 305 are symmetrically distributed about the central axis of the substrate layer 1.

[0030] Refer to the attached Figure 1-2 and attached Figure 4-5As shown, a rubber layer 301 is installed inside the cellular layer 2, and a plurality of springs 303 are used to connect the cellular layer 2 and the substrate layer 1, and an EVA filling layer 304 is used to fill the gap. The EVA filling layer 304 has excellent buffering performance and shock absorption effect, and can absorb the impact and vibration of the foot during exercise together with the spring 303. There is a rubber support 302 inside the spring 303, which can ensure that the spring 303 will not be deformed or skewed due to the influence of the force direction after multiple deformations. The air cushions 305 at both ends of the substrate layer 1 further absorb the pressure on the heel and provide support for the heel during the compression and reduction process, making the user more comfortable and labor-saving when exercising and walking.

[0031] A reinforcing structure 4 is provided inside the cellular layer 2, and the reinforcing structure 4 includes a nylon braided layer 401, a connecting column 402 and a connecting groove 403. The nylon braided layer 401 is provided inside the cellular layer 2, and the top of the nylon braided layer 401 is integrally formed with a connecting column 402. The connecting groove 403 is opened inside the cellular layer 2, and the connecting grooves 403 are arranged at equal intervals inside the cellular layer 2. A card block is provided on the outer wall of the top of the connecting column 402, and a card slot is provided on the inner wall of the connecting groove 403. The connecting column 402 and the connecting groove 403 are snap-connected.

[0032] Refer to the attached Figure 4-5 As shown, a nylon braided layer 401 is installed inside the porous layer 2. The nylon braided layer 401 has high strength and wear resistance. When the foam outsole is bent and deformed, it can share the pulling force it receives, thereby preventing the foam outsole from cracking or even breaking during repeated pulling and bending. This can effectively improve the tear resistance of the foam outsole and extend its overall service life. At the same time, the nylon braided layer 401 is light and soft, and will not bring burden or discomfort to the user. The nylon braided layer 401 is installed in the porous layer 2 by clamping the connecting column 402 and the connecting groove 403, which is more stable and not easy to deform or shift.

[0033] A protective structure 5 is provided at the bottom end of the substrate layer 1, and the protective structure 5 includes a first anti-slip pattern 501, an epoxy resin coating 502, a polyurethane coating 503 and an acrylic coating 504. The first anti-slip pattern 501 is provided at the bottom end of the substrate layer 1, and a polyurethane coating 503 is provided on the outside of the first anti-slip pattern 501. An epoxy resin coating 502 is provided on the outside of the polyurethane coating 503. The acrylic coating 504 is provided at the top of the cellular layer 2, and a second anti-slip pattern 6 is provided on the top of the cellular layer 2.

[0034] Refer to the attached Figure 1-5As shown, a complex first anti-slip pattern 501 is provided at the bottom end of the substrate layer 1, which can form greater friction with the ground when walking, improve grip and avoid slipping. The epoxy resin coating 502 is located on the outermost layer and has good corrosion resistance and wear resistance, as well as good UV resistance and waterproof properties. The polyurethane coating 503 can form a solid waterproof layer on the surface of the foamed outsole to effectively prevent moisture penetration. The acrylic coating 504 can form a smooth and hard waterproof layer on the surface of the foamed outsole and is arranged on the top of the foamed layer for easy connection with the midsole. The protection of the multi-layer material greatly extends the service life of the foamed outsole.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-layer composite foam outsole, comprising a substrate layer (1); Its characteristics are: A cellular layer (2) is bonded to the top of the substrate layer (1), and a buffer structure (3) is provided inside the cellular layer (2); The buffer structure (3) comprises a rubber layer (301), a rubber pillar (302), a spring (303), an EVA filling layer (304) and an air cushion (305); the rubber layer (301) is arranged inside the cellular layer (2); the bottom end of the rubber layer (301) is integrally formed with a rubber pillar (302); the outer side of the rubber pillar (302) is provided with a spring (303); and the outer side of the spring (303) is provided with an EVA filling layer (304); A reinforcing structure (4) is provided inside the cellular layer (2), a protective structure (5) is provided at the bottom end of the substrate layer (1), and a second anti-slip pattern (6) is provided at the top end of the cellular layer (2).

2. The multi-layer composite foam outsole according to claim 1, characterized in that: The spring (303) is elastic, and the spring (303) is elastically connected to the rubber layer (301).

3. The multi-layer composite foam outsole according to claim 1, characterized in that: The air cushions (305) are arranged at both ends inside the substrate layer (1), and the air cushions (305) are symmetrically distributed about the central axis of the substrate layer (1).

4. The multi-layer composite foam outsole according to claim 1, characterized in that: The reinforcing structure (4) comprises a nylon braided layer (401), a connecting column (402) and a connecting groove (403); the nylon braided layer (401) is arranged inside the cellular layer (2); and the top end of the nylon braided layer (401) is integrally formed with the connecting column (402).

5. The multi-layer composite foam outsole according to claim 4, characterized in that: The connection grooves (403) are opened inside the cellular layer (2), and the connection grooves (403) are arranged at equal intervals inside the cellular layer (2).

6. The multi-layer composite foam outsole according to claim 4, characterized in that: A clamping block is provided on the outer side wall of the top end of the connecting column (402), and a clamping groove is provided on the inner side wall of the connecting groove (403). The connecting column (402) and the connecting groove (403) are connected in a clamping manner.

7. The multi-layer composite foam outsole according to claim 1, characterized in that: The protective structure (5) comprises a first anti-slip pattern (501), an epoxy resin coating (502), a polyurethane coating (503) and an acrylic coating (504), wherein the first anti-slip pattern (501) is arranged at the bottom end of the substrate layer (1), the polyurethane coating (503) is arranged on the outside of the first anti-slip pattern (501), the epoxy resin coating (502) is arranged on the outside of the polyurethane coating (503), and the acrylic coating (504) is arranged on the top end of the cellular layer (2).

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