Vehicle seat

Patent metadata

Field	Value
Publication number	US-9604549-B2
Application number	US-201314025077-A
Country	US
Kind code	B2
Filing date	Sep 12, 2013
Priority date	Sep 14, 2012
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A vehicle seat including: a cushion pad having elasticity and configured to be bent by a load of an occupant, the cushion pad including: a foamed-resin body made of foamed resin and provided at an ischium corresponding portion of the cushion pad, which is configured to support at least an ischial tuberosity of an occupant, and a first high elastic body of a sheet shape having a degree of elasticity higher than that of the foamed-resin body and provided at a front end portion of the cushion pad.

First claim

What is claimed is:

1. An automotive vehicle seat for an automotive vehicle, the automotive vehicle seat comprising:
a seat cushion, a seat back connected to a rear end portion of the seat cushion, wherein the seat cushion includes a frame that is fastenable to the automotive vehicle and a cushion pad attached to the frame,
the cushion pad having elasticity and having a main portion and side support portions, the cushion pad configured to be bent by a load of an occupant in the automotive vehicle seat, the cushion pad including:
a foamed-resin body made of foamed resin and provided at least at the main portion of the cushion pad, which is configured to support an occupant, and
a first high elastic body having a degree of elasticity higher than that of the foamed-resin body and provided at a front end portion of the main portion of the cushion pad across substantially a whole width of the main portion,
wherein the first high elastic body is a unitary structure, and

wherein, at the front end portion of the main portion of the cushion pad, the foamed-resin body serves as an upper layer and the first high elastic body serves as a lower layer,
wherein the cushion pad includes a second high elastic body arranged separately from the first high elastic body, the second high elastic body having forwardly projecting portions at left and right sides of the cushion pad, and
wherein the first high elastic body includes an inwardly dented defect at each of left and right rear corners defining a rearwardly projecting portion between the defects such that the forwardly projecting portions of the second high elastic body enter the defects on opposite sides of the rearwardly projecting portion of the first high elastic body.

2. The automotive vehicle seat according to claim 1 ,
wherein the first high elastic body is provided at an under layer of the front end portion of the cushion pad.

3. The automotive vehicle seat according to claim 1 ,
wherein a thickness of the first high elastic body varies toward a rear side of the first high elastic body.

4. The automotive vehicle seat according to claim 1 ,
wherein the first high elastic body is provided only at the front end portion of the cushion pad.

5. The automotive vehicle seat according to claim 1 ,
wherein the first high elastic body comprises a tear drop shape having a substantially constant thickness in a front portion of the first high elastic body, and a tapering thickness in a rear portion of the first high elastic body.

6. The automotive vehicle seat according to claim 5 ,
wherein the tapering thickness in the rear portion of the first high elastic body converges to approximately zero at a rear end of the rear portion.

7. The automotive vehicle seat according to claim 1 ,
wherein the first high elastic body comprises a wing shape having a substantially constant thickness in a front portion of the first high elastic body, and a tapering thickness in a rear portion of the first high elastic body.

8. The automotive vehicle seat according to claim 1 ,
wherein each of the side support portions is a portion having a surface swelling upwardly in an embankment shape higher than a sitting surface of the main portion.

Assignees

• Toyota Boshoku Kk

Inventors

• Makiguchi Fumiya
• Azuma Miki
• Kato Yasuhiro

Classifications

• B60N2/646 Primary

  shape of the cushion · CPC title

• B60N2/02 Primary

  the seat or part thereof being movable, e.g. adjustable (adjustable arm-rests B60N2/75; adjustable head-rests B60N2/806) · CPC title

• B60N2/70

  Upholstery springs {; Upholstery} · CPC title

• B60N2/7017

  characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for · CPC title