US 12,280,730 B2
Side airbag device and method for manufacturing the same
Yuto Kobayashi, Kanagawa (JP); and Takaki Shibuya, Kanagawa (JP)
Assigned to Autoliv Development AB, Vargarda (SE)
Appl. No. 18/552,382
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed Feb. 2, 2022, PCT No. PCT/JP2022/003973
§ 371(c)(1), (2) Date Sep. 25, 2023,
PCT Pub. No. WO2022/209259, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 2021-062021 (JP), filed on Mar. 31, 2021.
Prior Publication US 2024/0157905 A1, May 16, 2024
Int. Cl. B60R 21/207 (2006.01); B60R 21/231 (2011.01); B60R 21/237 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/23138 (2013.01); B60R 21/237 (2013.01); B60R 2021/23146 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A side airbag device for stowage in a side part of a vehicle seat, the side airbag device comprising:
an airbag for restraining an occupant by expanding and deploying; and
an inflator provided in a side wall part of a seat frame in a vehicle width direction extending in a vehicle traveling direction when a horizontal cross section of the vehicle seat is viewed from above, that supplies expansion gas to the airbag; wherein
the airbag includes a main chamber that expands and deploys towards a front and a pre-push chamber that expands and deploys before the main chamber to an inside of the main chamber in the vehicle width direction, and
the pre-push chamber includes an extension portion that extends rearward from the inflator toward a rear of the vehicle seat,
wherein the extension portion of the pre-push chamber is stowed in a state folded towards the front so as to cover a portion of the inflator from the inside in the vehicle width direction.