US 11,958,429 B2
Side airbag device
Yuto Kobayashi, Kanagawa (JP)
Assigned to Autoliv Development AB, Vargarda (SE)
Appl. No. 17/995,661
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed Apr. 5, 2021, PCT No. PCT/JP2021/014490
§ 371(c)(1), (2) Date Oct. 6, 2022,
PCT Pub. No. WO2021/206051, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 2020-070550 (JP), filed on Apr. 9, 2020.
Prior Publication US 2023/0202421 A1, Jun. 29, 2023
Int. Cl. B60R 21/231 (2011.01); B60R 21/207 (2006.01); B60R 21/233 (2006.01); B60R 21/237 (2006.01)
CPC B60R 21/23138 (2013.01) [B60R 21/207 (2013.01); B60R 21/233 (2013.01); B60R 21/237 (2013.01); B60R 2021/23146 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A side airbag device comprising:
a side support formed at an end part in a width direction of a seatback of a vehicle seat having a surface skin and a seat pad bent and protruding forward as compared to an area at a center of the seatback in the width direction;
a frame side plate portion provided along a seatback side surface inside the side support;
an airbag cushion that is a bag that is rolled or folded into a prescribed stowed state and embedded in the side support; and
an inflator inserted into the airbag cushion assembled in the frame side plate portion together with the airbag cushion; wherein
the airbag cushion in the stowed state includes:
a cushion rear part assembled to the frame side plate portion with the inflator contained therein;
a cushion extension part extending from the cushion rear part toward a front along the seat pad of the side support of the seatback in the width direction;
a cushion folding part folded from the cushion extension part towards a rear;
a cushion front part rolled or folded from the cushion folding part toward an outside of the cushion folding part in the width direction of the seatback; and
a cushion center part formed between the cushion folding part and the cushion front part and rolled or folded at a center side of the frame side plate portion,
wherein the cushion extension part receives gas from the cushion rear part, expands towards the center of the seatback, and together with the seat pad, are configured to push on an occupant.