Vehicle seat

Patent metadata

Field	Value
Publication number	US-10328825-B2
Application number	US-201815897700-A
Country	US
Kind code	B2
Filing date	Feb 15, 2018
Priority date	Jul 8, 2014
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A vehicle seat comprises a seat cushion frame configuring a frame member of a seat cushion, and a seat unit that is supported by the seat cushion frame and on which an occupant sits, that has a higher seating face rigidity in a seat front-rear direction than a seating face rigidity in a seat width direction, and that has the seating face rigidity in the seat width direction set lower at a seat front-rear direction rear side than at a seat front-rear direction front side.

First claim

What is claimed is:

1. A vehicle seat comprising:
a seat cushion frame configuring a frame member of a seat cushion; and
a seat unit that is supported by the seat cushion frame and on which an occupant sits, wherein:
the seat unit is configured by a resin seat cushion pad that has cushioning properties;
a plurality of thinned portions are formed at a seating face side of the seat cushion pad, such that the rigidity of the seat cushion pad is lower at the seat front-rear direction rear side than at the seat front-rear direction front side,
the thinned portions are configured by recessed grooves extending along the seat front-rear direction,
the recessed grooves comprise a first plurality of recessed grooves extending from the seat front-rear direction rear side of the seat cushion pad to the seat front-rear direction front side of the seat cushion pad and a second plurality of recessed grooves extending from the seat front-rear direction rear side of the seat cushion pad to an intermediate portion of seat cushion pad,
the second plurality of recessed grooves are formed outside the first plurality of recessed grooves, and
a groove depth of each recessed groove is set deeper at the seat front-rear direction rear side than at the seat front-rear direction front side.

2. The vehicle seat of claim 1 , wherein:
the thinned portions are formed by recessed grooves extending along the seat front-rear direction; and
a greater number of the recessed grooves are formed at the seat front-rear direction rear side than at the seat front-rear direction front side.

3. The vehicle seat of claim 2 , wherein:
a groove depth of each recessed groove is set deeper at the seat front-rear direction rear side than at the seat front-rear direction front side.

Assignees

• Toyota Motor Co Ltd

Inventors

• Hamabe Tsutomu
• Katoh Kohshi
• Takeuchi Eishi

Classifications

• B60N2/72

  Attachment or adjustment thereof · CPC title

• B60N2/70

  Upholstery springs {; Upholstery} · CPC title

• B60N2/7011

  of substantially two-dimensional shape, e.g. hammock-like, plastic shells, fabrics · CPC title

• A47C7/18

  having foamed material included in cushioning part · CPC title

• B60N2/10

  tiltable (B60N2/12 {, B60N2/2875} take precedence) · CPC title