High-wear-resistance PU (polyurethane) coated skin for vehicle

Abstract

The utility model provides a highly wear-resistant PU (polyurethane) coated skin for a vehicle, which belongs to the technical field of PU coated skins and comprises an upper PVC (polyvinyl chloride) base material layer. The PU coating layer is arranged at the top of the upper PVC base material layer; the metal wire braid layer is arranged in the PU coating layer; the net-shaped edge grooves are formed in the bottom of the upper PVC base material layer; the positioning grooves are formed in the positions, close to the outer sides of the net-shaped edge grooves, of the bottom of the upper PVC base material layer; the lower PVC base material layer is arranged at a position below the upper PVC base material layer; the net-shaped ribs are arranged at the top of the lower PVC base material layer; the positioning blocks are arranged at the top of the lower PVC base material layer and are close to the outer sides of the net-shaped ribs; according to the PU coated skin for the vehicle, the PU coated skin for the vehicle consists of the upper PVC base material layer and the lower PVC base material layer, so that the PU coated skin for the vehicle can be subjected to edge cutting and replacement when the local part of the PU coated skin for the vehicle is seriously abraded, the whole PU coated skin does not need to be replaced, and the cost is lower.

Description

Technical Field

[0001] This utility model belongs to the field of PU coating technology, specifically relating to a highly wear-resistant automotive PU coating. Background Technology

[0002] PU-coated skin is a composite skin material made of polyurethane (PU) as the main component, formed through processes such as spraying and molding. It is widely used in automotive interiors, furniture, bags and other fields.

[0003] Existing automotive PU-coated skins frequently come into contact with the human body during use. Under long-term and repeated friction, some areas of the PU-coated skin gradually wear down, resulting in surface defects. Usually, the entire PU-coated skin needs to be replaced, which is costly and wasteful of materials.

[0004] Therefore, a highly wear-resistant PU coating for automotive applications is proposed. Summary of the Invention

[0005] This invention provides a highly wear-resistant PU-coated outer skin for automobiles, with the aim of solving the aforementioned problems.

[0006] This utility model embodiment provides a highly wear-resistant automotive PU-coated skin, including an upper PVC substrate layer; a PU coating layer disposed on top of the upper PVC substrate layer; a metal wire braided layer disposed inside the PU coating layer; a mesh groove formed at the bottom of the upper PVC substrate layer; and a positioning groove formed at the bottom of the upper PVC substrate layer near the outer side of the mesh groove; a lower PVC substrate layer disposed below the upper PVC substrate layer; a mesh strip disposed on top of the lower PVC substrate layer; and a positioning block disposed on the top of the lower PVC substrate layer near the outer side of the mesh strip; male hook and loop fasteners disposed at the top of the mesh groove and the positioning groove respectively; and female hook and loop fasteners disposed at the top of the mesh strip and the positioning block respectively.

[0007] Furthermore, the top of the lower PVC substrate layer has a groove near the inner side of the mesh ribs, and an elastic airbag is provided inside the groove. The bottom of the lower PVC substrate layer has an adhesive layer.

[0008] Furthermore, the mesh grooves and mesh strips are adapted to each other, and both the mesh grooves and mesh strips are cross-shaped mesh structures; the positioning grooves and positioning blocks are adapted to each other.

[0009] By adopting the above technical solution and through the matching structure, the mesh ridges can be embedded in the mesh ridge grooves and the positioning blocks can be embedded in the positioning grooves, ensuring a tight connection between the upper PVC substrate layer and the lower PVC substrate layer and reducing gaps.

[0010] Furthermore, the male and female hook and loop fasteners are connected by an adhesive connection through a hook surface with barbs and a bristle surface.

[0011] By adopting the above technical solution, the upper PVC substrate layer and the lower PVC substrate layer can be tightly connected, while the upper PVC substrate layer and the lower PVC substrate layer can be easily separated, thereby facilitating the replacement of the PU coating layer.

[0012] Furthermore, the elastic airbag has a hollow hemispherical structure, and the interior of the elastic airbag is filled with air;

[0013] By adopting the above technical solution, the elasticity of the airbag ensures its cushioning ability, avoiding the problem of high friction caused by the hard contact between the PU covering layer and the human body, and reducing wear.

[0014] Furthermore, the metal wire braided layer is embedded inside the PU covering layer, and the metal wire braided layer is formed by cross-weaving of metal wires;

[0015] By adopting the above technical solution, the metal wire braided layer formed by cross-weaving of metal wires can form a mesh reinforcement structure, which improves tear resistance and wear resistance, and ensures the wear resistance of the PU coating layer.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention utilizes a PU-coated outer skin for automobiles, consisting of an upper PVC substrate layer and a lower PVC substrate layer. When localized wear of the PU-coated outer skin becomes severe, it can be trimmed and replaced without replacing the entire PU-coated outer skin, resulting in lower costs. The combination of a metal wire braided layer and a PU coating layer enhances tear resistance and abrasion resistance, ensuring the wear resistance of the PU-coated outer skin. Elastic air pockets in the lower PVC substrate layer provide cushioning, preventing excessive friction caused by hard contact between the PU coating layer and the human body, reducing wear, and further improving abrasion resistance.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the upper PVC substrate layer structure according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the lower PVC substrate layer structure according to an embodiment of the present invention;

[0023] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged diagram of point A in the diagram;

[0024] Reference numerals: 1. Upper PVC substrate layer; 2. Metal wire braided layer; 3. PU coating layer; 4. Mesh groove; 5. Positioning groove; 6. Lower PVC substrate layer; 7. Mesh ribs; 8. Positioning block; 9. Groove; 10. Elastic airbag; 11. Adhesive layer. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Reference Figure 1-4 This utility model embodiment proposes a highly wear-resistant automotive PU covering skin, including an upper PVC substrate layer 1, a metal wire braided layer 2 on the top of the upper PVC substrate layer 1, and a PU covering layer 3 covering the outside of the metal wire braided layer 2. The metal wire braided layer 2 is embedded inside the PU covering layer 3, and the metal wire braided layer 2 is made of metal wire cross-weaving. The metal wire braided layer 2 can form a mesh reinforcement structure by using metal wire cross-weaving, which can improve tear resistance and wear resistance, and ensure the wear resistance of the PU covering layer 3. A mesh groove 4 is opened at the bottom of the upper PVC substrate layer 1, and four positioning grooves 5 are symmetrically opened at the bottom of the upper PVC substrate layer 1 near the outer side of the mesh groove 4.

[0027] A lower PVC substrate layer 6 is provided below the upper PVC substrate layer 1. A mesh strip 7 is provided on the top of the lower PVC substrate layer 6, and four positioning blocks 8 are symmetrically arranged near the outer side of the mesh strip 7 on the top of the lower PVC substrate layer 6. The mesh groove 4 and the mesh strip 7 are compatible, and both the mesh groove 4 and the mesh strip 7 have a cross-shaped mesh structure. The positioning groove 5 and the positioning blocks 8 are compatible. Through this compatible structure, the mesh strip 7 can be embedded into the mesh groove 4, and the positioning blocks 8 can be embedded into the positioning groove 5, ensuring... The upper PVC substrate layer 1 and the lower PVC substrate layer 6 are tightly joined to reduce gaps. Male hook and loop fasteners are provided on the top of the mesh groove 4 and the positioning groove 5, and female hook and loop fasteners are provided on the top of the mesh strip 7 and the positioning block 8. The male hook and loop fasteners are connected by adsorption through the hook surface with barbs and the hairy surface. This can achieve a tight connection between the upper PVC substrate layer 1 and the lower PVC substrate layer 6, while facilitating the separation of the upper PVC substrate layer 1 and the lower PVC substrate layer 6, thereby facilitating the replacement of the PU covering layer 3.

[0028] A groove 9 is provided at the top of the lower PVC substrate layer 6 near the inner side of the mesh ribs 7. An elastic airbag 10 is provided at the bottom of the groove 9. The elastic airbag 10 protrudes from the groove 9 and has a hollow hemispherical structure. The elastic airbag 10 is filled with air. The elasticity of the elastic airbag 10 ensures that it has a cushioning capacity, avoids the problem of high friction caused by hard contact between the PU covering layer 3 and the human body, and reduces wear. An adhesive layer 11 is provided at the bottom of the lower PVC substrate layer 6.

[0029] The specific implementation method is as follows: The PU-coated skin is adhered to the automotive interior parts using the adhesive layer 11. When the PU-coated layer 3 comes into contact with the human body, the human body squeezes the PU-coated layer 3. After being compressed, the PU-coated layer 3 transmits the extrusion pressure sequentially to the metal wire braided layer 2, the upper PVC substrate layer 1, and the lower PVC substrate layer 6. After the PU-coated layer 3 and the upper PVC substrate layer 1 are deformed under pressure, the elastic airbag 10 is squeezed to buffer the extrusion pressure. When the PU-coated layer 3 wears out after long-term use, the PU-coated skin in the worn area can be replaced. The upper PVC substrate layer 1 is torn off from the lower PVC substrate layer 6, and this part of the PU-coated skin is cut off. Then, a new one can be replaced.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant automotive PU-coated outer skin, characterized in that: Includes the upper PVC substrate layer (1); A PU covering layer (3) is disposed on top of the upper PVC substrate layer (1); A metal wire braided layer (2) is disposed inside the PU covering layer (3); Mesh grooves (4) formed at the bottom of the upper PVC substrate layer (1); and A positioning groove (5) is formed at the bottom of the upper PVC substrate layer (1) near the outer side of the mesh groove (4); A lower PVC substrate layer (6) is located below the upper PVC substrate layer (1); Mesh ribs (7) disposed on the top of the lower PVC substrate layer (6); and A positioning block (8) is located on the top of the lower PVC substrate layer (6) near the outer side of the mesh strip (7); Male Velcro straps are respectively provided at the top of the mesh groove (4) and the positioning groove (5); The female Velcro straps are respectively located on the top of the positioning block (8) of the mesh rib (7).

2. The PU coated skin for vehicle with high wear resistance according to claim 1, characterized in that: The bottom of the lower PVC substrate layer (6) has a groove (9) located near the inner side of the mesh ribs (7) at the top. An elastic airbag (10) is provided inside the groove (9). An adhesive layer (11) is provided at the bottom of the lower PVC substrate layer (6).

3. The PU coated skin for vehicle with high wear resistance according to claim 1, characterized in that: The mesh groove (4) and mesh strip (7) are adapted to each other, and both the mesh groove (4) and mesh strip (7) are cross mesh structures. The positioning groove (5) and positioning block (8) are adapted to each other.

4. The high wear-resistant automotive PU-coated skin according to claim 1, characterized in that: The male and female hook and loop fasteners are connected by an adhesive connection through a hook surface with barbs and a bristle surface.

5. The PU coated skin of claim 2, wherein: The elastic airbag (10) is a hollow hemispherical structure, and the interior of the elastic airbag (10) is filled with air.

6. The PU coated skin for vehicle with high wear resistance according to claim 1, characterized in that: The metal wire braided layer (2) is embedded inside the PU covering layer (3), and the metal wire braided layer (2) is made of metal wires crisscrossed.

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