US 11,794,616 B2
Conveyance seat
Jinichi Tanabe, Tochigi (JP)
Assigned to TS TECH CO., LTD., Asaka (JP)
Appl. No. 17/441,590
Filed by TS TECH CO., LTD., Asaka (JP)
PCT Filed Mar. 19, 2020, PCT No. PCT/JP2020/012260
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2020/196242, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-055602 (JP), filed on Mar. 22, 2019; application No. 2019-055603 (JP), filed on Mar. 22, 2019; and application No. 2019-086748 (JP), filed on Apr. 26, 2019.
Prior Publication US 2022/0194273 A1, Jun. 23, 2022
Int. Cl. B60N 2/42 (2006.01); B60N 2/427 (2006.01)
CPC B60N 2/4228 (2013.01) [B60N 2/42745 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A conveyance seat, comprising:
a seat back,
wherein the seat back includes a seat back frame and a chest support member that is provided in an upper portion of the seat back frame, the chest support member receiving a chest of an occupant to reduce a backward movement load while moving backward with respect to the seat back frame and supporting the chest of the occupant when the backward movement load is applied to the occupant because of a vehicle collision, and
the chest support member is provided at a position to overlap the upper portion of the seat back frame in a height direction,
wherein the chest support member includes a first deformable member provided at an upper end of the chest support member to be connected to the seat back frame, and
wherein the first deformable member consists of a plate spring, and has a bent portion that elastically deforms when the backward movement load is applied to the occupant.