US 12,214,703 B2
Conveyance seat
Takanori Yamaguchi, Tochigi (JP); Masahito Tashiro, Tochigi (JP); Katsuya Kawata, Tochigi (JP); Kazuya Miyawaki, Tochigi (JP); Heehyeok Park, Tochigi (JP); Kenta Kikuchi, Tochigi (JP); Naoto Yamauchi, Tochigi (JP); Naoya Matsumoto, Tochigi (JP); Hiroyuki Kaku, Tochigi (JP); Hiroshi Baba, Tochigi (JP); and Jinichi Tanabe, Tochigi (JP)
Assigned to TS TECH CO., LTD., Saitama (JP)
Appl. No. 18/018,052
Filed by TS TECH CO., LTD., Saitama (JP)
PCT Filed Jul. 30, 2021, PCT No. PCT/JP2021/028480
§ 371(c)(1), (2) Date Jan. 26, 2023,
PCT Pub. No. WO2022/025286, PCT Pub. Date Feb. 3, 2022.
Claims priority of provisional application 63/059,368, filed on Jul. 31, 2020.
Claims priority of provisional application 63/085,211, filed on Sep. 30, 2020.
Claims priority of provisional application 63/085,249, filed on Sep. 30, 2020.
Claims priority of provisional application 63/085,332, filed on Sep. 30, 2020.
Claims priority of provisional application 63/085,371, filed on Sep. 30, 2020.
Prior Publication US 2023/0278473 A1, Sep. 7, 2023
Int. Cl. B60N 2/64 (2006.01); A47C 7/46 (2006.01); B60N 2/66 (2006.01)
CPC B60N 2/64 (2013.01) [A47C 7/46 (2013.01); B60N 2/665 (2015.04)] 13 Claims
OG exemplary drawing
 
1. A conveyance seat, comprising:
a seat main body, which includes a seat back that serves as a backrest portion; and
a movable body, which is attached inside the seat back, is disposed at an outer position in relation to a center portion of the seat back in a seat width direction, and is operated so that a portion of the seat back protrudes from a normal position toward a seat front side,
wherein a rear end portion of the movable body is disposed on the seat front side in relation to a seating surface of the center portion of the seat back,
wherein the seat back includes a cushion material and a skin material covering the cushion material,
wherein the movable body is disposed on a back surface of a cushion material in a side portion of the seat back in the seat width direction and is operated so that the side portion protrudes toward the seat front side,
wherein the movable body includes a plurality of bag bodies which inflate when a fluid is enclosed,
wherein the plurality of bag bodies are arranged at different positions in a front to back direction of the seat, and
wherein a first bag body located closest to the seat front side in the plurality of bag bodies is configured to have the smallest capacity than the other bag bodies.