Conveyance seat

Patent metadata

Field	Value
Publication number	US-10926683-B2
Application number	US-201916381339-A
Country	US
Kind code	B2
Filing date	Apr 11, 2019
Priority date	Apr 12, 2018
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

To secure both flexibility and rigidity of a pressure-receiving member, a pressure-receiving member capable of moving rearward in a state of receiving a load from a back of an occupant is included in a seat back of a conveyance seat for supporting the back of the occupant. The pressure-receiving member has a load-receiving portion which receives the load from the back of the occupant at a front face, and the load-receiving portion includes a load-receiving portion piece formed so that a length in a vertical direction of the seat back is shorter than a length in a seat width direction, and a rear reinforcement rib protruding along a thickness direction of the load-receiving portion from the load-receiving portion piece and extending along the seat width direction.

First claim

What is claimed is:

1. A conveyance seat comprising a seat back for supporting a back of an occupant, wherein
the seat back is provided with a pressure-receiving member capable of moving rearward in a state of receiving a load from the back of the occupant,
the pressure-receiving member has a load-receiving portion for receiving the load from the back of the occupant,
the load-receiving portion includes
a load-receiving portion piece formed so that a length in a vertical direction of the seat back is shorter than a length in a width direction of the conveyance seat, and
a reinforcement portion protruding from the load-receiving portion piece along a thickness direction of the load-receiving portion and extending along the vertical direction,

the load-receiving portion piece is provided with a groove-shaped concave portion formed by being recessed rearward, and
the reinforcement portion is located in the groove-shaped concave portion.

2. The conveyance seat according to claim 1 , wherein
the reinforcement portion is a plurality of front reinforcement ribs disposed so as to be aligned along the width direction.

3. The conveyance seat according to claim 1 , wherein
a surface of the load-receiving portion piece located at an opening peripheral edge of the groove-shaped concave portion, and an end of the reinforcement portion in a protruding direction of the reinforcement portion are located at the same position in the thickness direction.

4. The conveyance seat according to claim 1 , wherein
a plurality of load-receiving portion pieces is provided at intervals in the vertical direction,
a plurality of reinforcement portions is disposed on each of the plurality of load-receiving portion pieces, and
each of the plurality of reinforcement portions provided on one load-receiving portion piece among the two load-receiving portion pieces adjacent to each other in the vertical direction, and each of the plurality of reinforcement portions provided on the other load-receiving portion piece are disposed so as to be aligned at the same position in the width direction.

5. The conveyance seat according to claim 1 , wherein
the seat back includes a seat back frame,
the pressure-receiving member has an attachment portion for attaching the load-receiving portion to the seat back frame,
the attachment portion includes a lower attachment portion connected to a lower portion of the seat back frame, and
the reinforcement portion is disposed at a position at which the lower attachment portion is provided in the width direction.

6. The conveyance seat according to claim 1 , wherein
a plurality of load-receiving portion pieces is provided at intervals in the vertical direction,
the load-receiving portion includes a connecting portion for connecting the load-receiving portion pieces in the vertical direction, and
the reinforcement portion is disposed at a position between both ends of the connecting portion in the width direction.

7. The conveyance seat according to claim 1 , wherein
the load-receiving portion is constituted by a plate-shaped member, and
the reinforcement portion is made of the same material as a portion of the plate-shaped member other than the reinforcement portion, and is formed so as to be integrated with the portion other than the reinforcement portion.

8. A conveyance seat comprising a seat back for supporting a back of an occupant, wherein
the seat back is provided with a pressure-receiving member capable of moving rearward in a state of receiving a load from the back of the occupant,
the pressure-receiving member has a load-receiving portion for receiving the load from the back of the occupant,
the load-receiving portion includes
a load-receiving portion piece formed so that a length in a vertical direction of the seat back is shorter than a length in a width direction of the conveyance seat, and
a reinforcement portion protruding from the load-receiving portion piece along a thickness direction of the load-receiving portion and extending along the vertical direction, the seat back includes a seat back frame,

the pressure-receiving member has an attachment portion for attaching the load-receiving portion to the seat back frame,
the attachment portion has a vertical extending portion extending along the vertical direction, and
a plurality of reinforcement portions is disposed so that the vertical extending portion is located between the reinforcement portions in the width direction.

9. The conveyance seat according to claim 8 , wherein
the reinforcement portion is a plurality of front reinforcement ribs disposed so as to be aligned along the width direction.

10. The conveyance seat according to claim 8 , wherein
a plurality of load-receiving portion pieces is provided at intervals in the vertical direction,
a plurality of reinforcement portions is disposed on each of the plurality of load-receiving portion pieces, and
each of the plurality of reinforcement portions provided on one load-receiving portion piece among the two load-receiving portion pieces adjacent to each other in the vertical direction, and each of the plurality of reinforcement portions provided on the other load-receiving portion piece are disposed so as to be aligned at the same position in the width direction.

11. The conveyance seat according to claim 8 , wherein
the seat back includes a seat back frame,
the pressure-receiving member has an attachment portion for attaching the load-receiving portion to the seat back frame,
the attachment portion includes a lower attachment portion connected to a lower portion of the seat back frame, and
the reinforcement portion is disposed at a position at which the lower attachment portion is provided in the width direction.

12. The conveyance seat according to claim 8 , wherein
a plurality of load-receiving portion pieces is provided at intervals in the vertical direction,
the load-receiving portion includes a connecting portion for connecting the load-receiving portion pieces in the vertical direction, and
the reinforcement portion is disposed at a position between both ends of the connecting portions in the width direction.

13. The conveyance seat according to claim 8 , wherein
the load-receiving portion is constituted by a plate-shaped member, and
the reinforcement portion is made of the same material as a portion of the plate-shaped member other than the reinforcement portion, and is formed so as to be integrated with the portion other than the reinforcement portion.

14. A conveyance seat comprising a seat back for supporting a back of an occupant, wherein
the seat back is provided with a pressure-receiving member capable of moving rearward in a state of receiving a load from the back of the occupant,
the pressure-receiving member has a load-receiving portion for receiving the load from the back of the occupant,
the load-receiving portion includes
a load-receiving portion piece formed so that a length in a vertical direction of the seat back is shorter than a length in a width direction of the conveyance seat, and
a reinforcement portion protruding from the load-receiving portion piece along a thickness direction of the load-receiving portion and extending along the vertical direction,

each of both end portions of the load-receiving portion piece in the width direction is bent such that a portion of each both end portion located outside in the width direction is located forward of a portion located inside, and
the reinforcement portion is disposed at a position apart from each bent portion of both end portions of the load-receiving portion piece in th

Assignees

• Ts Tech Co Ltd
• Honda Motor Co Ltd
• Leggett & Platt Canada Co

Inventors

• Onuma Koji
• Abe Ryuhei
• Misono Taiji
• Mizukoshi toshimitsu
• Shimazu Masaki
• Nakajima Akira
• Fukuda Yuki
• Nagatomo Hiromitsu
• Colja Rob

Classifications

• B60N2/667 Primary

  having flexible support member bowed by applied forces · CPC title

• B60N2/66 Primary

  Lumbar supports · CPC title

• B60N2/68

  Seat frames · CPC title

• B60N2/7094

  Upholstery springs · CPC title