Wear-resistant anti-deformation and shaping composite shoe sole

Abstract

The utility model relates to the technical field of shoe sole, especially disclose a wear -resisting anti -deformation shaping composite shoe sole, including composite shoe sole body, composite shoe sole body includes from top to bottom composite connection's upper layer buffer layer, intermediate support anti -deformation layer and lower layer wear -resistant contact layer, the intermediate support anti -deformation layer is made of thermoplastic polyether ester elastomer or modified nylon, and the inside or bottom surface integrative forming has the three -dimensional support structure of reinforcing bending stiffness, the three -dimensional support structure includes a plurality of arch bridge shape support ribs along the longitudinal distribution of shoe sole, and its side wall is provided with longitudinal wavy lightening groove, the intermediate support anti -deformation layer adopts thermoplastic polyether ester elastomer or modified nylon, cooperates the three -dimensional support structure of arch bridge shape support rib, and the design of arch crown faces upwards can disperse pressure, reinforce bending stiffness, and simultaneously, longitudinal wavy lightening groove further promotes structural stability under the premise of reducing the weight of shoe sole, avoids the deformation collapse of shoe sole after long -term use.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, and in particular to a durable, deformation-resistant, and shape-retaining composite shoe sole. Background Technology

[0002] With the development of the footwear industry, consumers have increasingly higher requirements for the performance of shoe soles, demanding not only good cushioning and comfort, but also excellent deformation resistance and abrasion resistance.

[0003] Most shoe soles on the market today use a single material or a simple composite structure, which has many performance shortcomings: although traditional rubber soles are wear-resistant, they have poor cushioning and are easy to cause fatigue after wearing them for a long time.

[0004] Polyurethane foam soles offer good cushioning, but have weak resistance to deformation and are prone to collapse and deformation after long-term use.

[0005] Some composite soles use a multi-layer bonding process, which results in low interlayer bonding strength and a tendency for delamination.

[0006] Meanwhile, existing support structure designs are mostly planar or simple rib structures, which lack bending stiffness and are difficult to effectively maintain the stability of the sole shape during walking and exercise.

[0007] In addition, some shoe soles do not balance wear resistance and slip resistance well; they are either wear-resistant but have poor slip resistance, or slip-resistant but wear out quickly, which cannot meet the needs of long-term use. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this utility model provides a durable, deformation-resistant, and shape-retaining composite sole, solving the problem that most shoe soles on the market use a single material or a simple composite structure, resulting in many performance shortcomings: although traditional rubber soles are wear-resistant, they have poor cushioning and are prone to fatigue after prolonged wear.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A durable, deformation-resistant, and shape-retaining composite sole includes a composite sole body, which comprises an upper cushioning layer, a middle support and deformation-resistant layer, and a lower abrasion-resistant contact layer that are sequentially and interconnected from top to bottom.

[0013] The intermediate support anti-deformation layer is made of thermoplastic polyether ester elastomer or modified nylon, and its interior or bottom surface is integrally formed with a three-dimensional support structure to enhance bending stiffness. The three-dimensional support structure includes multiple arch-shaped support ribs distributed along the longitudinal direction of the sole. The arch top of the arch-shaped support ribs faces upward towards the sole, and its sidewalls are provided with longitudinal wave-shaped weight reduction grooves.

[0014] The top of the arch-shaped support rib is provided with a reinforcing boss that is combined with the upper buffer layer.

[0015] Preferably, the upper buffer layer is made of radiation-crosslinked modified thermoplastic polyurethane or foamed thermoplastic polyurethane, with a microporous foam structure, a foam pore size of 0.1-0.5 mm, and a density of 0.25-0.45 g / cm³. The lower wear-resistant contact layer is made of high wear-resistant rubber or high wear-resistant thermoplastic polyurethane composite material, and its bottom surface is provided with anti-slip grooves with a depth of 1.0-2.0 mm.

[0016] The surface of the anti-slip groove is embedded with high-hardness wear-resistant silicon carbide or aluminum oxide particles with a particle size of 0.2-0.8mm and a volume ratio of 15%-25%. A physical interlocking structure is provided at the interface between the upper buffer layer and the middle support anti-deformation layer, and between the middle support anti-deformation layer and the lower wear-resistant contact layer.

[0017] The physical interlocking structure consists of matching protrusions and grooves on the contact surfaces of adjacent layers. The composite sole is prepared by a molding process, wherein the intermediate support anti-deformation layer is in a molten or semi-molten state during molding, and is fused and interpenetrated with the upper buffer layer and the lower wear-resistant contact layer at a temperature of 160-180℃ and a pressure of 5-10MPa. The upper surface of the upper buffer layer has at least two breathable round holes.

[0018] (III) Beneficial Effects

[0019] Balancing cushioning and deformation resistance: The upper cushioning layer uses radiation-crosslinked modified thermoplastic polyurethane or foamed thermoplastic polyurethane, with a microporous foam structure of 0.1-0.5mm and a density design of 0.25-0.45g / cm³, which can effectively absorb the impact energy during walking and sports, improving wearing comfort; the middle support deformation resistance layer uses thermoplastic polyether ester elastomer or modified nylon, combined with a three-dimensional support structure of arch-shaped support ribs. The upward-facing arch design can disperse pressure and enhance bending stiffness. At the same time, the longitudinal wave-shaped weight-reducing grooves further improve structural stability while reducing the weight of the sole, preventing deformation and collapse of the sole after long-term use.

[0020] Excellent wear resistance and anti-slip performance: The lower wear-resistant contact layer is made of high wear-resistant rubber or high wear-resistant thermoplastic polyurethane composite material. The anti-slip grooves with a depth of 1.0 to 2.0 mm on the bottom surface can enhance the friction with the ground. The surface of the grooves is embedded with high-hardness wear-resistant particles of silicon carbide or alumina with a particle size of 0.2 to 0.8 mm and a volume ratio of 15% to 25%, which greatly improves the wear resistance of the sole and extends its service life without affecting the anti-slip effect.

[0021] Stable and reliable interlayer bonding: The upper buffer layer and the middle support anti-deformation layer, as well as the middle support anti-deformation layer and the lower wear-resistant contact layer, are provided with a matching protrusion and groove physical interlocking structure. Combined with the fusion and interpenetration bonding at a temperature of 160-180℃ and a pressure of 5-10MPa in the molding process, the adjacent layers form a dual bond of mechanical interlocking and chemical fusion, which significantly improves the interlayer bonding strength and avoids delamination problems.

[0022] Excellent breathability: At least two ventilation holes on the upper surface of the cushioning layer promote air circulation inside the sole, reduce stuffiness in the feet, and improve the wearing experience. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a structural diagram of the composite shoe sole body of this utility model;

[0025] Figure 2 This is a structural diagram of the intermediate support deformation-resistant layer of this utility model;

[0026] Figure 3 This is a structural diagram of the upper buffer layer of this utility model;

[0027] Figure 4 This is a structural diagram of the lower wear-resistant contact layer of this utility model.

[0028] Legend: 1. Upper cushioning layer; 11. Breathable round holes; 2. Middle support and deformation-resistant layer; 21. Arch-shaped support rib; 211. Longitudinal wave-shaped weight-reducing groove; 212. Reinforcing boss; 3. Lower wear-resistant contact layer; 31. Anti-slip groove; 32. High-hardness wear-resistant particles; 41. Protrusion; 42. Groove; 5. Composite sole body. Detailed Implementation

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the overall concept of the technical solution in this application embodiment is as follows:

[0030] To address the problems existing in the prior art, this utility model provides a durable, deformation-resistant, and shape-retaining composite sole, including a composite sole body 5. The composite sole body 5 includes an upper buffer layer 1, a middle support and deformation-resistant layer 2, and a lower wear-resistant contact layer 3 that are sequentially composited and connected from top to bottom.

[0031] The intermediate support anti-deformation layer 2 is made of thermoplastic polyether ester elastomer or modified nylon. Its interior or bottom surface is integrally formed with a three-dimensional support structure to enhance bending stiffness. The three-dimensional support structure includes multiple arch-shaped support ribs 21 distributed along the longitudinal direction of the sole. The arch top of the arch-shaped support rib 21 faces the top of the sole, and its side wall is provided with longitudinal wave-shaped weight reduction grooves 211.

[0032] The top of the arch-shaped support rib 21 is provided with a reinforcing boss 212 that is combined with the upper buffer layer 1.

[0033] The upper buffer layer 1 is made of radiation-crosslinked modified thermoplastic polyurethane or foamed thermoplastic polyurethane, with a microporous foam structure, a foam pore size of 0.1 to 0.5 mm, and a density of 0.25 to 0.45 g / cm³. The lower wear-resistant contact layer 3 is made of high wear-resistant rubber or high wear-resistant thermoplastic polyurethane composite material, and its bottom surface is provided with anti-slip grooves 31 with a depth of 1.0 to 2.0 mm.

[0034] The surface of the anti-slip groove 31 is embedded with silicon carbide or alumina high-hardness wear-resistant particles 32 with a particle size of 0.2 to 0.8 mm and a volume ratio of 15% to 25%. There is a physical interlocking structure at the interface between the upper buffer layer 1 and the middle support anti-deformation layer 2, and between the middle support anti-deformation layer 2 and the lower wear-resistant contact layer 3.

[0035] The physical interlocking structure consists of matching protrusions 41 and grooves 42 on the contact surfaces of adjacent layers. The composite sole is prepared by a molding process. The intermediate support anti-deformation layer 2 is in a molten or semi-molten state during molding. It is fused and interpenetrated with the upper buffer layer 1 and the lower wear-resistant contact layer 3 at a temperature of 160-180℃ and a pressure of 5-10MPa. The upper surface of the upper buffer layer 1 has at least two breathable round holes 11.

[0036] Working principle:

[0037] During use, the various layers of this composite sole work synergistically: when the foot contacts the ground, the microporous foam structure of the upper cushioning layer deforms under pressure, absorbing impact energy and mitigating the impact on the foot and leg, thus achieving cushioning and shock absorption. Simultaneously, the arched support ribs of the middle support and deformation-resistant layer bear the pressure from the upper layer. The upward-facing arch disperses the pressure to the side ribs, utilizing the mechanical stability of the arch structure to resist bending deformation, preventing excessive bending or collapse of the sole and maintaining its shape. The lower abrasion-resistant contact layer directly contacts the ground; anti-slip grooves increase the contact area and friction, preventing slippage, while high-hardness abrasion-resistant particles reduce the wear rate between the sole and the ground, extending its lifespan. The physical interlocking structure and fusion-interpenetration between the layers ensure that each layer deforms synchronously and transmits force during stress, preventing relative sliding or separation between layers and improving the overall performance and stability of the sole. Furthermore, the breathable pores in the upper cushioning layer allow for air convection, promptly expelling moisture and heat from the feet and keeping them dry.

[0038] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A durable, deformation-resistant, and shape-retaining composite sole, comprising a composite sole body (5), characterized in that, The composite sole body (5) includes an upper buffer layer (1), an intermediate support and deformation-resistant layer (2), and a lower wear-resistant contact layer (3) that are sequentially connected from top to bottom. The intermediate support anti-deformation layer (2) is made of thermoplastic polyether ester elastomer or modified nylon, and its interior or bottom surface is integrally formed with a three-dimensional support structure to enhance bending stiffness. The three-dimensional support structure includes multiple arch-shaped support ribs (21) distributed along the longitudinal direction of the sole. The arch top of the arch-shaped support rib (21) faces the top of the sole, and its side wall is provided with a longitudinal wave-shaped weight reduction groove (211). The top of the arch-shaped support rib (21) is provided with a reinforcing boss (212) that is combined with the upper buffer layer (1).

2. The durable, deformation-resistant, and shape-retaining composite sole as described in claim 1, characterized in that, The upper buffer layer (1) is made of radiation-crosslinked modified thermoplastic polyurethane or foamed thermoplastic polyurethane and has a microporous foam structure.

3. The durable, deformation-resistant, and shape-retaining composite sole as described in claim 2, characterized in that, The lower wear-resistant contact layer (3) is made of high wear-resistant rubber or high wear-resistant thermoplastic polyurethane composite material, and its bottom surface is provided with anti-slip grooves (31). The surface of the anti-slip groove (31) is embedded with wear-resistant particles (32).

4. The durable, deformation-resistant, and shape-retaining composite sole as described in claim 3, characterized in that, A physical interlocking structure is provided at the interface between the upper buffer layer (1) and the middle support anti-deformation layer (2), and between the middle support anti-deformation layer (2) and the lower wear-resistant contact layer (3); The physical fitting structure consists of matching protrusions (41) and grooves (42) on the contact surfaces of adjacent layers.

5. The durable, deformation-resistant, and shape-retaining composite sole as described in claim 4, characterized in that, The composite sole is prepared by a molding process, wherein the intermediate support anti-deformation layer (2) is in a molten or semi-molten state during molding.

6. The durable, deformation-resistant, and shape-retaining composite sole as described in claim 1, characterized in that, The upper buffer layer (1) has at least two breathable round holes (11) on its upper surface.

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