Conveyance seat

Patent metadata

Field	Value
Publication number	US-12083939-B2
Application number	US-202117911805-A
Country	US
Kind code	B2
Filing date	Mar 18, 2021
Priority date	Mar 19, 2020
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

Provided is a conveyance seat having a good seating feeling and a suitable shock absorbing structure at the time of a rear collision. A conveyance seat has a configuration in which a cushion material is placed on a back frame and is covered with a skin material. The back frame includes right and left side frames which constitute side portions in a seat width direction and extend in an up to down direction. A surface of a cushion front portion disposed on a seat front side of the back frame in the cushion material is provided with a skin pull-in groove for pulling an end of the skin material and a surface groove disposed on the outside of the skin pull-in groove in the seat width direction and extending in the up to down direction. A back surface of the cushion front portion is provided with a back surface groove which is disposed between the skin pull-in groove and the surface groove in the seat width direction and extends in the up to down direction. The surface groove is disposed at a position overlapping the side frame in the front to back direction of the seat.

First claim

The invention claimed is:

1. A conveyance seat comprising a back frame, a cushion material placed on the back frame and a skin material covering the back frame and the cushion material,
wherein the back frame includes right and left side frames which constitute side portions in a seat width direction and extend in an up to down direction,
wherein a skin pull-in groove for pulling an end of the skin material is formed on a surface of a cushion front portion disposed on a seat front side in relation to the back frame in the cushion material,
wherein a back surface of the cushion front portion is provided with a slit-shaped back surface groove which is disposed on an outside of the skin pull-in groove in the seat width direction and extends in the up to down direction,
wherein a portion located on an outside of the slit-shaped back surface groove in the seat width direction of the cushion front portion is disposed at a position overlapping the right and left side frames in a front to back direction of the conveyance seat,
wherein the skin pull-in groove extends in the up to down direction,
wherein an insert wire extending along the skin pull-in groove is provided inside the cushion material,
wherein the slit-shaped back surface groove, an upper portion of the skin pull-in groove and an upper portion of the insert wire are disposed at a same position in the front to back direction, and
wherein the insert wire is disposed between the slit-shaped back surface groove and the skin pull-in groove in the seat width direction.

2. The conveyance seat according to claim 1 ,
wherein when an occupant is seated on the conveyance seat, a surface of the right and left side frames and a back surface of a portion located on the outside of the slit-shaped back surface groove in the seat width direction of the cushion front portion come into contact with each other.

3. The conveyance seat according to claim 1 ,
wherein the back frame includes an upper frame which connects upper portions of the right and left side frames, a lower frame which connects lower portions of the right and left side frames, a connection wire which connects the upper frame and the lower frame to each other, and a plate-shaped occupant support member that is attached between the upper frame and the lower frame through the connection wire and supports a load from a seated occupant, and
wherein the slit-shaped back surface groove is disposed on an outside of the connection wire in the seat width direction.

4. The conveyance seat according to claim 1 ,
wherein at least a part of the slit-shaped back surface groove extending in the up to down direction is disposed at a position overlapping the right and left side frames in the front to back direction of the conveyance seat.

5. The conveyance seat according to claim 1 ,
wherein the skin pull-in groove extends in the up to down direction, and
wherein the slit-shaped back surface groove is disposed at a position overlapping an upper portion of the skin pull-in groove in the seat width direction and is disposed at a position overlapping a lower portion of the skin pull-in groove in the up to down direction.

6. The conveyance seat according to claim 1 ,
wherein the slit-shaped back surface groove extends in a substantially linear shape in the up to down direction.

7. The conveyance seat according to claim 1 ,
wherein at least a part of the slit-shaped back surface groove extending in the up to down direction is formed to be recessed toward the seat front side and to reach a center portion of the front to back direction of the conveyance seat in a portion provided with the slit-shaped back surface groove of the cushion front portion.

Assignees

• Ts Tech Co Ltd

Inventors

• Miyawaki Kazuya
• Fujita Satoshi

Classifications

• B60N2/68

  Seat frames · CPC title

• B60N2/5825

  by hooks, staples, clips, snap fasteners or the like · CPC title

• B60N2/643

  shape of the back-rests (B60N2/66 takes precedence) · CPC title

• B60N2/42745

  of the back-rest (B60N2/433 takes precedence; higher part of the back-rest moving together with the headrest B60N2/888) · CPC title

• B60N2/42709

  involving residual deformation or fracture of the structure · CPC title