JP-7856053-B2 - Vehicle cushion panels and vehicle seats

Inventors

• 朝日 恒司
• 安井 洋介

Assignees

• トヨタ自動車株式会社

Dates

Publication Date

20260511

Application Date

20230606

Claims (5)

1. A panel body comprising a bottom wall portion positioned inside the seat cushion of a vehicle seat and extending in the front-rear direction and the width direction of the seat, and peripheral wall portions extending upward from both ends of the bottom wall portion in the width direction of the seat and from the rear end of the seat, A front transverse bead extends from the front end of the bottom wall portion of the panel body to the peripheral wall portion and is formed by recessing the panel body downwards , It has, A through hole is formed in the central portion of the bottom wall. The aforementioned front lateral beads are provided in pairs, one on the left and one on the right. The inner edge of each front transverse bead in the sheet width direction is located on a virtual line extending forward from the edge of the through hole. Each front lateral bead is angled so that, in a plan view, it gradually slopes outward in the width direction of the seat and then towards the rear of the seat. Cushion panels for vehicles.
2. A vehicle cushion panel according to claim 1, wherein a pair of left and right central lateral beads are formed extending from the bottom wall to the peripheral wall on the rear side of the seat, relative to the front lateral bead.
3. A vehicle cushion panel according to claim 1, wherein a pair of left and right rear vertical beads are formed extending from the rear end of the bottom wall portion to the peripheral wall portion.
4. The peripheral wall portion is composed of side wall portions extending in the front-rear direction of the sheet along both ends of the bottom wall portion in the sheet width direction, and a rear wall portion connecting the rear ends of the side wall portions in the sheet width direction. A vehicle cushion panel according to claim 1, wherein a pair of left and right peripheral wall beads are formed extending from the side wall portion to the rear wall portion.
5. A vehicle cushion panel according to any one of claims 1 to 4, The aforementioned vehicle cushion panel is positioned inside a seat cushion capable of supporting the occupant's buttocks and thighs, A seat back connected to the rear end of the seat cushion and extending in the vertical direction of the seat, capable of supporting the back of the occupant, A vehicle seat having the following features.

Description

This invention relates to a vehicle cushion panel and a vehicle seat. Patent Document 1 discloses a panel-shaped cushion panel made of iron. The cushion panel described in Patent Document 1 reduces seating pressure by forming multiple through-holes at positions corresponding to the ischial tuberosities. Japanese Patent Publication No. 2015-085840 This is a schematic diagram of a vehicle seat according to the first embodiment.This is a perspective view of a vehicle cushion panel according to the first embodiment.This is a plan view of a vehicle cushion panel according to the first embodiment, showing the area where a load is applied when weight is concentrated on the front of the seat.This is a plan view of a vehicle cushion panel according to the first embodiment, showing the area where a load is applied when weight is unevenly distributed on the side of the seat.This is a plan view of a vehicle cushion panel according to the first embodiment, showing the area where a load is applied when weight is concentrated at the rear of the seat.This is a perspective view of a vehicle cushion panel according to the second embodiment. <First Embodiment> The vehicle cushion panel 10 according to the first embodiment will be described below with reference to the drawings. In each figure, arrows FR, UP, and RH indicate the front, upper, and right sides of the vehicle seat S on which the vehicle cushion panel 10 is mounted, respectively. When describing the front, rear, left, right, up, and down directions, unless otherwise specified, they refer to the front and rear in the seat-to-rear direction, the left and right in the seat-to-width direction, and the up and down in the seat-to-up direction. (Vehicle seat S) As shown in Figure 1, the vehicle seat S equipped with the vehicle cushion panel 10 (hereinafter referred to as "cushion panel 10" as appropriate) according to this embodiment is composed of a seat cushion 12 and a seat back 14. The seat cushion 12 extends in the front-to-back direction and the width direction of the seat, and is configured to support the occupant's buttocks and thighs from below the seat. A cushion panel 10 is also positioned inside the seat cushion 12. The cushion panel 10 forms the bottom of the seat cushion 12 and is supported by a seat cushion frame (not shown). A seat cushion pad (not shown) is provided on the upper side of the cushion panel 10, and the seat cushion pad is covered with a seat surface (not shown). A seatback 14 is connected to the rear end of the seat cushion 12. The seatback 14 extends vertically in the seat direction, supporting the occupant's back from the rear of the seat. It includes a seatback frame and seatback pad (not shown). A reclining mechanism that allows for changing the angle of the seatback 14 may be provided at the connection point between the seat cushion 12 and the seatback 14. (Cushion panel 10) As shown in Figure 2, the cushion panel 10 is formed by press-forming a metal plate and comprises a panel body 11. The panel body 11 is composed of a bottom wall portion 16 and a peripheral wall portion 18. The bottom wall portion 16 extends in the front-to-back direction and the width direction of the sheet, and a substantially rectangular through-hole 16A is formed in its central portion. The front side of the through-hole 16A in the bottom wall portion 16 is formed by a front wall portion 16B located at a higher position than the general portion of the bottom wall portion 16. The front wall portion 16B extends in the sheet width direction, and both ends of the front wall portion 16B in the sheet width direction are connected to the circumferential wall portion 18. The peripheral wall portion 18 extends upward from both ends in the sheet width direction and the rear end of the sheet of the bottom wall portion 16, and is composed of a right side wall portion 18A, a left side wall portion 18B, and a rear wall portion 18C. The right side wall portion 18A extends in the front-rear direction of the sheet along the right side of the through-hole 16A and is composed of a curved surface continuous with the bottom wall portion 16. Furthermore, the upper end portion of the right side wall portion 18A extends above the sheet beyond the front wall portion 16B and curves to the right of the sheet. The left wall portion 18B is formed symmetrically to the right wall portion 18A. Specifically, the left wall portion 18B extends along the left side of the through-hole 16A in the front-to-back direction of the sheet and is composed of a curved surface continuous with the bottom wall portion 16. Furthermore, the upper end portion of the left wall portion 18B extends above the sheet beyond the front wall portion 16B and curves toward the left side of the sheet. The rear ends of the right wall portion 18A and the left wall portion 18B are connected in the sheet width direction by the rear wall portion 18C. The rear wall portion 18C extends in the sheet width direction along the rear si