Three-layer seat cushion structure of automobile seat

Abstract

The utility model relates to a three-layer seat cushion structure of an automobile seat. The three-layer seat cushion structure comprises a polyurethane foaming layer, a 3D (three-dimensional) air fiber layer formed by processing POE (Polyolefin Elastomer) materials, and a comfortable soft foam layer, wherein a supporting layer mounting groove is formed in the core position of the top face of the polyurethane foaming layer, first air pipe via holes are formed in the two sides of the supporting layer mounting groove, and a sensor mounting groove is formed in the position, close to the center line of the seat cushion, of the supporting layer mounting groove; the 3D air fiber layer is arranged in the supporting layer installation groove, the top face of the 3D air fiber layer is provided with an air bag installation groove, the outer side of the air bag installation groove is provided with a wire passing groove, a core sheet of the comfortable soft foam layer is arranged on the 3D air fiber layer, and the rest of the core sheet is arranged on the polyurethane foaming layer. And meanwhile, abnormal sound can be prevented from being easily generated when the massage air bag works, and the appearance quality and comfort of the seat cushion are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive seats, relates to the seat cushion of an automotive seat, and particularly relates to a three-layer seat cushion structure. Background Art

[0002] The existing seat cushions of automotive seats are mainly composed of polyurethane foam. The polyurethane foam seat cushion has poor support performance, and problems such as deformation, collapse, and hollowing are likely to occur after being covered with a leather wrap; in addition, if a massage airbag is installed in the existing polyurethane foam seat cushion, since the massage airbag and the SBR seat sensor on the seat cushion are on the same layer, there is interference between them, and abnormal noises are likely to be generated when the massage airbag works, affecting comfort. Summary of the Invention

[0003] In view of the above technical problems and disadvantages, the purpose of the utility model is to provide a three-layer seat cushion structure for an automotive seat. The seat cushion structure is designed into three layers. The upper layer is a comfort soft foam layer, the middle layer is a 3D air fiber layer processed from POE material, and the lower layer is a polyurethane foam layer. The SBR seat sensor and the massage airbag are arranged on different layers. This structure can avoid problems such as deformation, collapse, and hollowing after being covered with a leather wrap, and at the same time can also avoid the generation of abnormal noises when the massage airbag works, ensuring the appearance quality and comfort of the seat cushion.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A three-layer seat cushion structure for an automotive seat includes a polyurethane foam layer, a 3D air fiber layer processed from POE material, and a comfort soft foam layer; wherein, a support layer installation groove is processed at the core position on the top surface of the polyurethane foam layer, first air pipe through holes are arranged on both sides of the support layer installation groove, and a sensor installation groove is processed at a position close to the center line of the seat cushion. The SBR seat sensor is installed in the sensor installation groove;

[0006] The 3D air fiber layer is arranged in the support layer installation groove. Two airbag installation grooves imitating the shape of the massage airbag are symmetrically arranged on the top surface of the 3D air fiber layer. Wire grooves matching the number of air pipes on the massage airbag are arranged on the outer sides of the airbag installation grooves. The wire grooves are communicated with the airbag installation grooves. The massage airbag is arranged in the airbag installation groove, and the air pipes on the massage airbag are arranged in the wire grooves and are arranged on the back surface of the polyurethane foam layer after passing through the first air pipe through holes of the polyurethane foam layer along the wire grooves;

[0007] The comfort soft foam layer includes an upper core sheet, a core sheet, a lower core sheet, a left wing sheet, and a right wing sheet; the core sheet is arranged on the 3D air fiber layer, and the upper core sheet, the lower core sheet, the left wing sheet, and the right wing sheet are arranged at corresponding positions of the polyurethane foam layer.

[0008] Preferably, a hard felt layer is provided on the back surface of the polyurethane foam layer, and the hard felt layer is provided with a through hole at a position opposite to the first air pipe through hole.

[0009] Preferably, a felt is provided on the wire groove, and the felt is used to cover the air pipes in the wire groove. The felt is fixed to the 3D air fiber layer by pasting.

[0010] Preferably, upper support wires, lower support wires, left support wires, and right support wires are respectively provided at the upper and lower ends and the left and right sides inside the polyurethane foam layer.

[0011] Preferably, ventilation holes are provided on the polyurethane foam layer, 3D air fiber layer, comfort soft foam layer, and hard felt layer.

[0012] Preferably, the thickness of the 3D air fiber layer is controlled to be 15 - 20 mm, and the thickness of the comfort soft foam layer is controlled to be 15 - 20 mm. The comfort soft foam layer is made of PUR material.

[0013] Preferably, the 3D air fiber layer is fixed to the support layer installation groove by pasting, the core sheet is fixed to the 3D air fiber layer by pasting, and the upper core sheet, lower core sheet, left wing sheet, and right wing sheet are fixed to the corresponding positions of the polyurethane foam layer by pasting; the hard felt layer and the polyurethane foam layer are fixed by hot pressing.

[0014] Advantages and beneficial effects of the present utility model:

[0015] (1) The seat cushion structure provided by the present utility model is designed into three layers. The upper layer is a comfort soft foam layer, the middle layer is a 3D air fiber layer made of POE material, and the lower layer is a polyurethane foam layer. The SBR seat sensor and the massage air bag are arranged in different layers. This structure solves the problem that polyurethane foam seats often have poor support. It can increase the support of the seat cushion core while meeting the excellent appearance of the seat, avoiding problems such as deformation, collapse, and drum after leather wrapping, and at the same time can also avoid the easy generation of abnormal sounds when the massage air bag works, ensuring the comfort of the seat cushion.

[0016] (2) The seat cushion structure provided by the present utility model is provided with a hard felt layer on the back surface of the polyurethane foam layer, and the hard felt layer is used to play a role in support and shaping, ensuring the appearance quality of the seat. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 Front view of the polyurethane foam layer of the present utility model;

[0019] Figure 2 Schematic diagram of the 3D air fiber layer of the present utility model;

[0020] Figure 3 Schematic diagram of the comfortable soft foam layer of the present utility model;

[0021] Figure 4 Rear view of the polyurethane foam layer of the present utility model;

[0022] Figure 5 Schematic diagram of the arrangement of the support steel wires at the upper and lower ends and the left and right sides inside the polyurethane foam layer of the present utility model;

[0023] Figure 6 For the present utility model Figure 1 Partial enlarged view;

[0024] Figure 7 Schematic diagram of the connection of the polyurethane foam layer, 3D air fiber layer, and comfortable soft foam layer of the present utility model.

[0025] Reference numerals: polyurethane foam layer 1, 3D air fiber layer 2, comfortable soft foam layer 3, hard felt layer 4, support layer installation groove 11, first air pipe through hole 12, sensor installation groove 13, upper support steel wire 14, lower support steel wire 15, left support steel wire 16, right support steel wire 17, air bag installation groove 21, wire trough 22, upper core sheet 31, core sheet 32, lower core sheet 33, left side wing sheet 34, right side wing sheet 35, through hole 41. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] As Figures 1 to 7 shown, this embodiment provides a three-layer seat cushion structure for an automobile seat, including a polyurethane foam layer 1, a 3D air fiber layer 2 processed from a POE material (the full name is Polyolefin Elastomer, that is, polyolefin elastomer), and a comfort soft foam layer 3; wherein, a support layer installation groove 11 is processed at the core position on the top surface of the polyurethane foam layer 1, first air pipe through holes 12 are provided on both sides of the support layer installation groove 11, and a sensor installation groove 13 is processed at a position close to the center line of the seat cushion. An SBR seat sensor (not shown) is installed in the sensor installation groove;

[0030] The 3D air fiber layer 2 is arranged in the support layer installation groove 11. Two air bag installation grooves 21 that are shaped like massage air bags are symmetrically arranged on the top surface of the 3D air fiber layer 2. Wire grooves 22 that match the number of air pipes on the massage air bag (not shown) are provided on the outer sides of the air bag installation grooves 21. The wire grooves 22 are communicated with the air bag installation grooves 21. The massage air bag is arranged in the air bag installation groove 21, and the air pipes on the massage air bag are arranged in the wire grooves 22 and are arranged on the back surface of the polyurethane foam layer 1 after passing through the first air pipe through holes 12 of the polyurethane foam layer 1 along the wire grooves 22;

[0031] The comfort soft foam layer 3 includes an upper core sheet 31, a core sheet 32, a lower core sheet 33, a left wing sheet 34, and a right wing sheet 35; the core sheet 32 is arranged on the 3D air fiber layer 2, and the upper core sheet 31, the lower core sheet 33, the left wing sheet 34, and the right wing sheet 35 are arranged at corresponding positions of the polyurethane foam layer 1.

[0032] Further, as shown in Figure 4 In this embodiment, a hard felt layer 4 is provided on the back surface of the polyurethane foam layer 1. The hard felt layer 4 is used for support and shaping, and a through hole 41 is provided at a position of the hard felt layer 4 opposite to the first air pipe through hole 12.

[0033] Further, as shown in Figure 5 In this embodiment, upper support steel wires 14, lower support steel wires 15, left support steel wires 16, and right support steel wires 17 are respectively provided at the upper and lower ends and the left and right sides inside the polyurethane foam layer 1.

[0034] Further, as shown in Figures 1 to 4 In this embodiment, ventilation holes a are provided on the polyurethane foam layer 1, the 3D air fiber layer 2, the comfort soft foam layer 3, and the hard felt layer 4;

[0035] Specifically, ventilation holes a are provided on the upper core sheet 31, the core sheet 32, and the lower core sheet 33 of the comfort soft foam layer 3.

[0036] Further, in this embodiment, a felt (not shown) is provided on the wire groove 22. The felt is used to cover the air pipes in the wire groove, and the felt is fixed to the 3D air fiber layer 2 by pasting.

[0037] In this embodiment, the thickness of the 3D air fiber layer 2 is controlled to be 15 - 20 mm, and the thickness of the comfort soft foam layer 3 is controlled to be 15 - 20 mm. The comfort soft foam layer 3 is made of PUR material;

[0038] The 3D air fiber layer 2 is fixed to the support layer installation groove 11 by pasting, the core sheet 32 is fixed to the 3D air fiber layer 2 by pasting, and the upper core sheet 31, the lower core sheet 33, the left wing sheet 34, and the right wing sheet 35 are fixed to the corresponding positions of the polyurethane foam layer 1 by pasting; the hard felt layer 4 and the polyurethane foam layer 1 are fixed by hot pressing.

[0039] The above are the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A three-layer seat cushion structure for a car seat, characterized in that: It includes a polyurethane foam layer, a 3D air fiber layer made of POE material, and a comfortable soft foam layer; wherein the top surface of the polyurethane foam layer is processed with a support layer installation groove at the core position, a first air pipe through hole is provided on both sides of the support layer installation groove, and a sensor installation groove is processed at a position close to the center line of the seat cushion, and an SBR seat sensor is installed in the sensor installation groove; The 3D air fiber layer is arranged in the mounting groove of the support layer, and two air bag mounting grooves symmetrically arranged on the top surface of the 3D air fiber layer are shaped like the massage air bag. The outer side of the air bag mounting groove is provided with a wire groove matching the number of air pipes on the massage air bag, and the wire groove is connected with the air bag mounting groove. The massage air bag is arranged in the air bag mounting groove, and the air pipe on the massage air bag is arranged in the wire groove, and is arranged on the back of the polyurethane foam layer after passing through the first air pipe hole along the wire groove and through the polyurethane foam layer; The comfortable soft foam layer includes an upper core sheet, a core sheet, a lower core sheet, a left wing sheet, and a right wing sheet; the core sheet is arranged on the 3D air fiber layer, and the upper core sheet, the lower core sheet, the left wing sheet, and the right wing sheet are arranged at corresponding positions of the polyurethane foam layer.

2. The three-layer seat cushion structure of a car seat according to claim 1, characterized in that: A hard felt layer is arranged on the back of the polyurethane foam layer, and a through hole is arranged on the hard felt layer at a position opposite to the first air pipe through hole.

3. A three-layer seat cushion structure for an automobile seat according to claim 1 or 2, characterized in that: The wire trough is provided with a felt, and the felt is used to cover the air pipe in the wire trough. The felt is fixed to the 3D air fiber layer by gluing.

4. A three-layer seat cushion structure for an automobile seat according to claim 1 or 2, characterized in that: An upper supporting steel wire, a lower supporting steel wire, a left supporting steel wire and a right supporting steel wire are respectively arranged at the upper and lower ends and the left and right sides of the polyurethane foam layer.

5. The three-layer seat cushion structure of a car seat according to claim 2, characterized in that: The polyurethane foam layer, the 3D air fiber layer, the comfortable soft foam layer and the hard felt layer are all provided with ventilation holes.

6. The three-layer seat cushion structure of a car seat according to claim 2, characterized in that: The thickness of the 3D air fiber layer is controlled at 15-20 mm, the thickness of the comfortable soft foam layer is controlled at 15-20 mm, and the comfortable soft foam layer is made of PUR material.

7. The three-layer seat cushion structure of a car seat according to claim 2, characterized in that: The 3D air fiber layer is fixed to the support layer mounting groove by gluing, the core sheet is fixed to the 3D air fiber layer by gluing, the upper core sheet, the lower core sheet, the left wing sheet, and the right wing sheet are fixed to corresponding positions of the polyurethane foam layer by gluing; the hard felt layer and the polyurethane foam layer are fixed by hot pressing.

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