Vehicle seat

• US 10,328,825 B2
• Filed: 02/15/2018
• Issued: 06/25/2019
• Est. Priority Date: 07/08/2014
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Hamabe, Tsutomu, Katoh, Kohshi, Takeuchi, Eishi
• Primary Examiner(s): Brindley, Timothy J
• Application Number:
  US15/897,700
• Publication Number:
  US 20180170214A1
• Time in Patent Office: 495 Days
• CPC Class Codes: A47C 7/18 having foamed material included in cushioning part foamed material mattresses A47C27/14
• CPC Class Codes: B60N 2/028 Elastically mounted back-rests
• CPC Class Codes: B60N 2/10 tiltable B60N2/12 , B60N2/2875 take precedence
• CPC Class Codes: B60N 2/39 Seats tiltable to compensate for roll inclination of vehicles
• CPC Class Codes: B60N 2/646 shape of the cushion
• CPC Class Codes: B60N 2/70 Upholstery springs ; Upholstery
• CPC Class Codes: B60N 2/7011 of substantially two-dimensional shape, e.g. hammock-like, plastic shells, fabrics
• CPC Class Codes: B60N 2/7094 Upholstery springs
• CPC Class Codes: B60N 2/72 Attachment or adjustment thereof

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.

Claims

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.