CN113859073B

CN113859073B - Foaming structure of automobile seat

Info

Publication number: CN113859073B
Application number: CN202111202686.9A
Authority: CN
Inventors: 张海平; 夏武贤; 王跃贞
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-10-21
Anticipated expiration: 2041-10-15
Also published as: CN113859073A

Abstract

The invention aims to provide an automobile seat foaming structure which is low in cost, simple in process and simple in structure. The invention mainly aims at the body pressure distribution difference of each area of the foaming body, regularly digs a plurality of pits on the foaming body, so that the joint degree of the buttocks and the legs of passengers and a cushion is higher when the passengers sit on the cushion, and the riding comfort is improved.

Description

Foaming structure of automobile seat

Technical Field

The invention relates to the technical field of automobile seats, in particular to a foaming structure of an automobile seat.

Background

The foamed structure is a key component of a vehicle seat and not only provides shape and contour to the seat, but also plays a decisive role in the comfort of the occupants. The following technical solutions are disclosed in a utility model named as "a multi-hardness foam seat" (grant no: CN 212604706U) (hereinafter, referred to as document 1) "in order to improve the comfort of the passenger sitting on the seat, because the areas of the seat cushion are divided into a side wing area and a middle scenery area, which can be divided into a hip area and a leg area, and the main sitting areas of the passenger are the hip area and the leg area, and the pressure on each area is different when the passenger sits on the seat: the middle of the bottom of the main foaming body and the middle of the bottom of the front side foaming body are respectively provided with a first holding tank and a second holding tank, the main supporting foaming body and the front supporting foaming body are respectively filled in the first holding tank and the second holding tank, the seat foaming body is separated into foaming structures with various different hardness through each layer, and the hardness of each area can be independently controlled in the foaming molding process according to actual conditions. In addition, a utility model patent (hereinafter, referred to as document 2) entitled "a seat foam structure and a car seat" (grant publication No. CN 211280719U) discloses the following technical solutions: the soft inflatable seat comprises a foaming structure body and at least one soft inflatable bag, wherein flexible fillers are arranged in the soft inflatable bag, and the softness and hardness of each part on the surface of the seat can be adjusted by inflating and deflating the soft inflatable bag. In the document 1, the same seat needs to be assembled into a whole after foaming of foaming materials with different hardness, and the process is complex; in the document 2, a soft air bag and an air inflation passage are additionally arranged, so that the cost is high and the structure is complex.

Disclosure of Invention

The invention aims to provide an automobile seat foaming structure which is low in cost, simple in process and simple in structure.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a car seat foaming structure, includes the foaming body, and the last surface distribution of foaming body has a plurality of pits, and the pit tuyeres of pit upwards arrange and degree of depth h differs.

The invention mainly aims at the body pressure distribution difference of each area of the foaming body, regularly digs a plurality of pits on the foaming body, so that the joint degree of the buttocks and the legs of passengers and a cushion is higher when the passengers sit on the cushion, and the riding comfort is improved.

Drawings

FIG. 1 is a top view of a seat foam structure;

FIG. 2 is a cross-sectional view of a dimple;

fig. 3 is a pressure profile of the seat.

Detailed Description

As shown in fig. 1 and 2, the automobile seat foaming structure comprises a foaming body 10, wherein a plurality of pits 11 are distributed on the upper surface of the foaming body 10, and the pits 11 are arranged upwards and have different depths h. The foaming body 10 is realized by using a conventional foaming process, and the invention mainly aims at the body pressure distribution difference of each area of the foaming body 10, regularly digs a plurality of pits 11 on the foaming body 10, so that the touch feeling of a foaming surface is softer, the joint degree of the buttocks, legs and a cushion is higher when a passenger sits on the cushion, the structure is simple and reliable, the foaming cost is not increased, the touch feeling of the foaming surface can be improved, and the sitting comfort of a seat is improved.

According to the body pressure distribution condition of passengers when the passengers sit, the pressure of each sitting area is different, the areas of the cushion are divided into side wing areas and scenic areas, the scenic areas can be divided into hip areas B and leg areas A according to the pressure distribution condition, the main sitting areas of the passengers are the hip areas B and the leg areas A, therefore, the pits 11 are distributed in the leg areas A and the hip areas B of the foaming body 10, the depth h of each pit 11 corresponds to the pressure distribution curve of the corresponding position one by one, the depth h of the pit 11 at the position with high pressure is larger than the depth h at the position with low pressure, the hips and the legs of the passengers are pressed on the foaming body 10 when the passengers sit, and due to the arrangement of the pits 11, the hardness of each area is different, and the joint degree of the hips, the legs and the cushion is higher.

As shown in fig. 3, since the pressure distribution curve on the seat cushion is generally M-shaped, the depth h of the dimples 11 in each row gradually increases from 0 to the maximum in the vehicle width direction, decreases to the maximum, and finally decreases to 0 again, corresponding to the shape of the pressure distribution curve.

The supporting force required by the area with large pressure is larger than that of the area with small pressure, and the corresponding rigidity is also required to be larger, so that the distance between two adjacent pits 11 at the position with large pressure in one row is larger than the distance between two adjacent pits 11 at the position with small pressure, the rigidity is larger if the distance between the pits 11 is larger, and the rigidity is smaller if the distance between the pits 11 is smaller.

Because the space occupied by the leg area a is relatively small, two rows of the concave pits 11 are arranged in the vehicle length direction of the leg area a, and the concave pits 11 in the two rows are arranged in a staggered manner in the vehicle width direction, so that the supporting force of the foaming body 10 is improved.

Because the space occupied by the hip area B is relatively large, four rows of the pits 11 are arranged in the vehicle length direction of the hip area B, and the pits 11 in two adjacent rows are arranged in a staggered mode in the vehicle width direction, so that the supporting force of the foaming body 10 is improved.

The areas enclosed by the arrayed dimples 11 in the leg area a and the hip area B are each a trapezoid having a wide front and a narrow back, which is in accordance with the cross-sectional shape of the foam body 10 itself.

As a preferable scheme of the invention, the pit 11 is in a barrel shape with a circular section, and during foaming, the pit 11 adopts a movable pin form corresponding to a boss on a foaming mould, and the extending length of the pin can be freely adjusted. Because the passenger is when the minister is on the cushion, the power of giving the cushion is not vertical decurrent, but forward slope, therefore the axis and the plumb line of pit 11 are the contained angle formula and are arranged and incline to the locomotive direction.

The two sides of the leg area A and the hip area B are also extended with the side wing areas C, and the side wing areas C are almost not stressed, so that the side wing areas C are of a solid structure, and the processing technology is simplified.

Claims

1. A car seat foaming structure, includes foaming body (10), its characterized in that: a plurality of pits (11) are distributed on the upper surface of the foaming body (10), and the mouths of the pits (11) are arranged upwards and have different depths; the pits (11) are distributed in a leg area (A) and a hip area (B) of the foaming body (10), the depth of each pit (11) corresponds to the pressure distribution curve of the corresponding position one by one, the pressure distribution curve on the cushion is integrally M-shaped, the depth of the pit (11) at the position with large pressure is greater than that at the position with small pressure, the depth of the pit (11) in each row gradually increases from 0 to the maximum in the vehicle width direction, then increases to the maximum after decreasing, finally decreases to 0 again and corresponds to the shape of the pressure distribution curve; the pit (11) is in a barrel shape with a circular section, and the axis of the pit (11) and a plumb line are arranged in an included angle mode and inclined towards the direction of the vehicle head; the distance between two adjacent pits (11) at the position with high pressure in one row is larger than the distance between two adjacent pits (11) at the position with low pressure; the areas enclosed by the arrayed pits (11) in the leg area (A) and the hip area (B) are all trapezoids with wide front and narrow back, and the shapes of the trapezoids are consistent with the cross section of the foaming body.

2. The foamed structure of automobile seats according to claim 1, characterized in that: the pits (11) are arranged in two rows in the length direction of the leg area (A), and the pits (11) in the two rows are arranged in a staggered manner in the width direction of the vehicle.

3. The foaming structure for an automobile seat according to claim 1, wherein: the pits (11) are arranged in four rows in the vehicle length direction of the hip area (B), and the pits (11) in two adjacent rows are arranged in a staggered mode in the vehicle width direction.

4. The foamed structure of automobile seats according to claim 1, characterized in that: wing regions (C) extend from both sides of the leg region (A) and the hip region (B), and the wing regions (C) have a solid structure.