Seatback frame

Patent metadata

Field	Value
Publication number	US-10093202-B2
Application number	US-201815903791-A
Country	US
Kind code	B2
Filing date	Feb 23, 2018
Priority date	Sep 4, 2013
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A frame serving as a seatback frame for a vehicle seat and simply configured to reduce a load applied to a seated occupant at the time of a vehicle collision is provided. A seatback frame includes a connecting wire which connects side frames. The center of the connecting wire is bent to extend toward a front side of a vehicle seat. When the seated occupant is moved toward a rear side of the vehicle seat at the time of a vehicle rear-end collision, the forward extending portion restrains a portion of the back of the seated occupant in which a thoracic vertebra is located and reduces an amount of a rearward movement of the portion.

First claim

What is claimed is:

1. A seatback frame that forms a frame of a seat back that supports a back of a seated occupant on a vehicle seat, the seatback frame comprising:
a pressure receiving member configured to support the seated occupant; and
a movement reduction member configured to restrain the back of the seated occupant and reduce a rearward movement of the back of the seated occupant when the seated occupant is moved rearward in a seat front to back direction by a vehicle collision, wherein:
the movement reduction member is a wire-shaped member that comprises a forward extending portion that extends forward in the seat front to back direction; and
the wire-shaped member is provided in a rear side of the pressure receiving member in a seat side-view.

2. The seatback frame according to claim 1 , further comprising:
a side frame that forms a side portion of the seatback frame;

wherein:
the side frame comprises a side plate and a flange that is provided at a rear end portion of the side plate; and
a front end of the wire-shaped member is arranged on a front side of the flange in an extending direction of the side frame.

3. The seatback frame according to claim 2 , wherein an upper end of the wire-shaped member is arranged at a height position different from a height position of an upper end of the flange in the seat side-view.

4. The seatback frame according to claim 3 , wherein the upper end of the wire-shaped member is arranged in an upper side of the upper end of the flange in the seat side-view.

5. The seatback frame according to claim 1 , wherein a rear end of the wire-shaped member is disposed in a rear side in the seat front to back direction of an attachment position at which the wire-shaped member is attached to the seatback frame.

6. A seatback frame that forms a frame of a seat back that supports a back of a seated occupant on a vehicle seat, the seatback frame comprising:
a pillar supporting portion configured to support a pillar of a headrest; and
a movement reduction member configured to restrain the back of the seated occupant and reduce a rearward movement of the back of the seated occupant when the seated occupant is moved rearward in a seat front to back direction by a vehicle collision,

wherein:
the movement reduction member is a wire-shaped member comprising a forward extending portion that extends forward in the seat front to back direction;
the wire-shaped member is bent in an up to down direction and in the seat front to back direction; and
a distance between an upper end and a lower end of the wire-shaped member is larger than a length of the pillar supporting portion in the up to down direction.

7. The seatback frame according to claim 6 , wherein:
the wire-shaped member comprises a downward bent portion that is bent downward and a forward bent portion that is bent forward; and
a bending angle of the forward bent portion is larger than a bending angle of the downward bent portion.

8. The seatback frame according to claim 6 , further comprising:
a side frame that forms a side portion of the seatback frame;
wherein the wire-shaped member is arranged such that the wire-shaped member does not overlap with the side frame in a seat front view.

Assignees

• Ts Tech Co Ltd
• Honda Motor Co Ltd

Inventors

• Fujita Satoshi
• Higano Yusuke
• Sano Koji
• Tsuda Toshihiko

Classifications

• 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

• B60N2/427

  Seats or parts thereof displaced during a crash · CPC title

• B60N2/80

  Head-rests · CPC title

• B60N2/4228 Primary

  due to impact coming from the rear · CPC title

• B60N2/4207

  characterised by the direction of the g-forces · CPC title