US 12,139,092 B2
Seat back of vehicle seat
Kensuke Yoshiga, Yokohama (JP); Hiroki Jineda, Yokohama (JP); Takashi Kamibayashi, Tokyo (JP); and Masafumi Takano, Tokyo (JP)
Assigned to NHK Spring Co., Ltd., Yokohama (JP); and Subaru Corporation, Tokyo (JP)
Filed by NHK SPRING CO., LTD., Yokohama (JP); and SUBARU CORPORATION, Tokyo (JP)
Filed on Nov. 14, 2023, as Appl. No. 18/509,044.
Claims priority of application No. 2022-184058 (JP), filed on Nov. 17, 2022.
Prior Publication US 2024/0166156 A1, May 23, 2024
Int. Cl. B60R 21/207 (2006.01); B60R 21/215 (2011.01); B60N 2/64 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/215 (2013.01); B60N 2/646 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A seat back of a vehicle seat, the seat back comprising:
a cushion member including a side portion in which a hollow accommodation portion is formed;
a side frame that forms a side portion of a seat back frame that is provided inside the cushion member;
a cover material that covers a surface of the cushion member;
an airbag accommodated in a folded state in the accommodation portion;
a cylindrical inflator fixed to the side frame in the accommodation portion, the inflator being configured to supply gas to the airbag such that the airbag expands to the outer side of the cover material while rupturing a rupture portion formed in a portion of the cover material;
a first retaining cloth, one end portion of which is connected to the rupture portion;
a second retaining cloth, one end portion of which is connected to the rupture portion and another end portion of which is connected to another end portion of the first retaining cloth, the second retaining cloth forming an accommodation space that accommodates the airbag and the inflator between the second retaining cloth and the first retaining cloth; and
a joining member that joins together the respective other end portions of the first retaining cloth and second retaining cloth at the accommodation portion,
wherein, when viewed along an axis of the inflator, a front end portion of the side frame is disposed forward of the inflator and the joining member is disposed forward of a front end portion of the side frame.