VEHCLE SEAT

• US 20160009199A1
• Filed: 07/06/2015
• Published: 01/14/2016
• Est. Priority Date: 07/08/2014
• Status: Active Grant

• 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
• Granted Patent: US 9,937,820 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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, 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.

2. The vehicle seat of claim 1, wherein:

the seat unit is formed in a net form including a plurality of longitudinal direction fiber members extending along the seat front-rear direction, and a plurality of lateral direction fiber members extending along the seat width direction; and

the respective fiber members are disposed more sparsely at the seat front-rear direction rear side than at the seat front-rear direction front side of the seat unit.

3. The vehicle seat of claim 2, wherein:

the longitudinal direction fiber members are thinner at the seat front-rear direction rear side than at the seat front-rear direction front side.

4. The vehicle seat of claim 2, wherein:

the lateral direction fiber members disposed at the seat front-rear direction rear side are thinner than the lateral direction fiber members disposed at the seat front-rear direction front side.

5. The vehicle seat of claim 2, wherein:

a number of seating face regions partitioned by the longitudinal direction fiber members, and the lateral direction fiber members or the seat cushion frame is smaller at the seat front-rear direction rear side than at the seat front-rear direction front side.

6. The vehicle seat of claim 2, wherein:

both end portions of the lateral direction fiber members that are disposed at the seat front-rear direction front side of the seat unit are fixed to the seat cushion frame; and

both end portions of the lateral direction fiber members that are disposed at a rear side of the lateral direction fiber members, which are disposed at the front side of the seat unit, are fixed to the longitudinal direction fiber members.

7. The vehicle seat of claim 2, wherein:

both end portions of the lateral direction fiber members that are disposed at the seat front-rear direction front side of the seat unit are fixed to the seat cushion frame; and

a lateral direction fiber member non-placement region in which the lateral direction fiber members are not disposed is provided at the seat front-rear direction rear side of the seat unit.

8. The vehicle seat of claim 1, wherein:

the seat unit is configured by a resin seat cushion pad that has cushioning properties; and

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.

9. The vehicle seat of claim 8, 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.

10. The vehicle seat of claim 8, wherein:

the thinned portions are configured by recessed grooves extending along the seat front-rear direction; 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.

11. The vehicle seat of claim 9, 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.