Multi-layer shoe sole formed by high-frequency fusion connection

Abstract

The utility model aims to provide the multi-layer shoe sole formed by high-frequency fusion, which is simple in structure, convenient to use and high in stability, and does not need to be adhered by glue. The shoe sole comprises a shoe sole middle shell, a shoe sole upper shell arranged on the upper portion of the shoe sole middle shell and two shoe grain layers arranged at the bottom of the shoe sole middle shell, an inner groove is formed in the upper edge of the shoe sole middle shell, a protruding edge tightly attached to the shoe sole upper shell is formed above the groove, the groove is tightly attached to the shoe sole upper shell, and the shoe grain layers are arranged at the bottom of the shoe sole middle shell. The protruding edge is tightly attached to the shoe sole upper shell, and a containing space used for containing filler is formed in the shoe sole middle shell. The multi-layer shoe sole is applied to the technical field of multi-layer shoe soles.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of multilayer soles, in particular to a high-frequency fusion forming multilayer sole. BACKGROUND

[0002] In recent years, with the improvement of people's understanding of health, the demand for health protection has also improved, and the demand for various health products has also improved. People's awareness of health has changed greatly. Athletic shoes usually include a sole and an upper, and the sole is usually a multilayer structure, generally including a big bottom and a midsole combined on the big bottom. The big bottom is used to improve the wear resistance and slip resistance of the sole, for example, rubber material can be used, and the midsole can use some shock-absorbing elastic materials, such as EVA material, to weaken the reaction force of the ground.

[0003] A pair of suitable running shoes can reduce the damage to the feet and improve the running performance. In order to balance the rebound performance and support performance of the sole, a kind of sole on the market adds a support plate in the midsole. The support plate can be made of carbon fiber support plate, which is usually made of multi-layer carbon fiber and has a hardness greater than the midsole. It has a certain rigidity to resist the bending deformation of the sole, and can quickly rebound after bending deformation. At present, the commonly used sole is bonded by glue. The sole formed by the glue bonding method has the problem that the glue bonding mark easily affects the foot feeling, and long-term use can easily cause uneven stress on the feet, affecting the normal posture of running or walking. UTILITARIAN CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and to provide a high-frequency fusion forming multilayer sole with simple structure and convenient use, without using glue for bonding, and with high stability.

[0005] The technical scheme adopted by the utility model is: the utility model discloses a shoe sole middle shell, a shoe sole upper shell arranged on the upper part of the shoe sole middle shell, and two tread layers arranged on the bottom of the shoe sole middle shell. The upper edge of the shoe sole middle shell is formed with an inner groove, the upper part of the inner groove is formed with a convex edge closely combined with the shoe sole upper shell, the inner groove is formed with a matching part combined with the shoe sole upper shell, the convex edge is combined with the shoe sole upper shell, and the inner part of the shoe sole middle shell is provided with a cavity for filling functional materials.

[0006] Further, the shoe sole upper shell is formed with an engaging edge closely combined with the inner groove.

[0007] Further, the middle part of the shoe sole middle shell is formed with an arc-shaped groove for adapting to the physiological curve of the foot.

[0008] Further, the tread layer is formed with a plurality of fusion grooves.

[0009] Further, the bottom of the upper shoe sole shell is formed with a first fusion layer, and the inner side of the inner groove and the convex edge are formed with a second fusion layer fused with the first fusion layer.

[0010] Further, the material of the shoe tread layer can be at least one of ethylene-vinyl acetate copolymer, polyurethane, thermoplastic polyurethane elastomer or natural rubber or composite material, and the surface texture thereof includes one or more combinations of anti-skid lines, wear-resistant lines or shock-absorbing lines.

[0011] The beneficial effects of the utility model are that: because the upper shoe sole shell and the lower shoe sole shell of the utility model are bonded by high-frequency fusion, they have excellent heat resistance and cold resistance, can maintain stable bonding performance in various environments, thereby prolonging the service life of the shoes and being not easy to delaminate or delayer; meanwhile, the inner groove is fused with the joint edge of the upper shoe sole shell, can reduce the thick and heavy feeling that the traditional glue may bring, makes the shoes more light and comfortable, the fusion process does not introduce harmful substances, ensures the health and safety of the staff, and the inner groove cooperates with the convex edge structure design, facilitates the lower shoe sole shell to be placed in the high-frequency fusion mold for rapid positioning, improves the high-frequency fusion efficiency, and simplifies the work flow; the shoe tread layer can more effectively fuse the anti-skid material into the shoe sole, enhances the anti-skid performance of the shoes, and the fusion technology can also enhance the wear resistance of the shoe sole. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the sectional view of the utility model;

[0014] Figure 3 It is Figure 2 The local enlarged view of A part in the middle;

[0015] Figure 4 It is the explosion drawing of the utility model.

[0016] In the drawing: 1, lower shoe sole shell; 11, inner groove; 12, convex edge; 13, cavity; 14, arch groove; 2, upper shoe sole shell; 21, joint edge; 3, shoe tread layer; 31, fusion groove. DETAILED DESCRIPTION

[0017] As Figures 1 to 4As shown, in the embodiment, the utility model discloses a shoe sole middle shell 1, set up on the shoe sole upper shell 2 of shoe sole middle shell 1 upper portion and two shoe tread layer 3 of setting in shoe sole middle shell 1 bottom, the upper edge of shoe sole middle shell 1 forms recessed groove 11, the upper of recessed groove 11 forms the convex edge 12 closely combined with shoe sole upper shell 2, recessed groove 11 forms the cooperation part closely combined with shoe sole upper shell 2, the convex edge 12 closely combined with shoe sole upper shell 2, the inside of shoe sole middle shell 1 is equipped with the cavity 13 for the fillable functional material, the filler in shoe sole middle shell 1 can be ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), thermoplastic polyurethane elastomer (TPU), hydrogenated styrene-butadiene block copolymer (SEBS), styrene block copolymer such as SBS, SIS, etc., natural rubber (RB), latex or aromatic polyamide organic fiber, carbon fiber, boron fiber and other solids, the filler is used to improve the foot feeling of user when walking or running, shoe sole middle shell 1 and shoe sole upper shell 2 adopt high-frequency fusion mode and are bonded, have excellent heat resistance, cold resistance, can keep stable bonding performance under various environments, thereby prolonging the service life of shoes, not easy to delaminate or delaminate;Meanwhile recessed groove 11 cooperates shoe sole upper shell 2 joint edge 21 and is fused, can reduce the heavy feeling that traditional glue can bring, make shoes more light and comfortable, the fusion process will not introduce harmful substances, ensure the health and safety of staff, recessed groove 11 cooperates convex edge 12 structure design simultaneously, facilitate shoe sole middle shell 1 to be placed in high-frequency fusion mold and be positioned quickly, improve high-frequency fusion efficiency, simplify work flow;Shoe tread layer 3 can be more effectively fused into the shoe sole by high-frequency fusion, enhance the antiskid performance of shoes, and the fusion technology can also enhance the wear resistance of the shoe sole.

[0018] In the embodiment, the shoe sole upper shell 2 is formed with a joint edge 21 closely combined with the recessed groove 11, and the first fusion layer for high-frequency fusion is arranged on one side of the joint edge 21 close to the recessed groove 11.

[0019] In the embodiment, the middle part of the shoe sole middle shell 1 is formed with an arc-shaped groove 14 for adapting to the physiological curve of the foot, and the arc-shaped groove 14 can be one of a hollow area or an embedded rigid element.

[0020] In the embodiment, the shoe tread layer 3 is formed with a plurality of fusion grooves 31, and the fusion grooves 31 are in contact with the shoe tread layer 3 at the positions of high-frequency fusion rods, which are used to fix the shoe tread layer 3 under the shoe sole middle shell 1 by high-frequency fusion, thereby enhancing the antiskid performance of the shoes. The fusion technology can also enhance the wear resistance of the shoe sole, making it more durable.

[0021] In the embodiment, the bottom of the shoe sole upper shell 2 is formed with a first fusion layer, and the inner sides of the recessed groove 11 and the convex edge 12 are each formed with a second fusion layer for high-frequency fusion with the first fusion layer.

[0022] In the embodiment, the material of the tread layer 3 can be at least one of ethylene-vinyl acetate copolymer, polyurethane, thermoplastic polyurethane elastomer or natural rubber or composite material, and the surface texture thereof includes one or more combinations of anti-skid pattern, wear-resistant pattern or shock-absorbing pattern.

[0023] Working principle of the utility model:

[0024] Before use, the shoe sole middle shell 1 is inverted in the high-frequency fusion mold, the staff places two pieces of the tread layer 3 at the bottom of the shoe sole middle shell 1, the contact head of high-frequency fusion is close to downward and fuses and fixes the tread layer 3 at the bottom of the shoe sole middle shell 1, then the shoe sole middle shell 1 is turned over, the filling is added to the space 13, after filling is completed, the shoe sole upper shell 2 is placed at the shoe sole middle shell 1, the inner recess 11 is closely combined with the joint edge 21, the convex edge 12 is flush with the joint edge of the shoe sole upper shell 2, the contact head of high-frequency fusion is pressed downward, the shoe sole middle shell 1 and the shoe sole upper shell 2 are fused and fixed along the joint edge, the blowing pipe is arranged at the periphery of the contact head of high-frequency fusion, is used for blowing out the protection gas during high-frequency fusion and is supplemented with the positioning mold during the fusion process to realize accurate combination.

[0025] Although the embodiment of the utility model is described with actual scheme, but does not constitute the limitation to the meaning of the utility model, for the person skilled in the art, according to the modification of its implementation scheme and the combination with other schemes in this specification, it is obvious.

Claims

1. A multi-layer shoe sole formed by high-frequency fusion bonding, characterized in that: The shoe includes a midsole shell (1), an upper sole shell (2) disposed on the upper part of the midsole shell (1), and two tread layers (3) disposed on the bottom of the midsole shell (1). The upper edge of the midsole shell (1) has an inner groove (11), and a raised edge (12) is formed above the inner groove (11) to fit tightly with the upper sole shell (2). The inner groove (11) has a mating part that is fused and fitted with the upper sole shell (2). The raised edge (12) is fused and fitted with the upper sole shell (2). The interior of the midsole shell (1) is provided with a cavity (13) for filling with functional materials.

2. The multi-layer shoe sole formed by high-frequency fusion molding according to claim 1, characterized in that: The upper shell (2) of the sole has a joint edge (21) that fits tightly against the inner groove (11).

3. The multi-layer shoe sole formed by high-frequency fusion molding according to claim 1, characterized in that: The middle part of the sole shell (1) has an arched groove (14) for adapting to the physiological curve of the foot.

4. The multi-layer shoe sole formed by high-frequency fusion molding according to claim 1, characterized in that: The shoe pattern layer (3) has several welding grooves (31).

5. A multi-layer shoe sole formed by high-frequency fusion molding according to claim 1, characterized in that: The bottom of the upper shell (2) of the sole is formed with a first fusion layer, and the inner side of the inner groove (11) and the inner side of the protrusion (12) are both formed with a second fusion layer that is fused with the first fusion layer at high frequency.

6. The multi-layer shoe sole formed by high-frequency fusion molding according to claim 1, characterized in that: The material of the shoe pattern layer (3) can be ethylene-vinyl acetate copolymer, polyurethane, thermoplastic polyurethane elastomer or natural rubber.

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