US 12,447,920 B2
Vehicular side airbag device
Yuto Kobayashi, Kanagawa (JP); and Tsutomu Sakurai, Kanagawa (JP)
Assigned to Autoliv Development AB, Vargarda (SE)
Appl. No. 18/833,723
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed Dec. 5, 2022, PCT No. PCT/JP2022/044727
§ 371(c)(1), (2) Date Jul. 26, 2024,
PCT Pub. No. WO2023/145258, PCT Pub. Date Aug. 3, 2023.
Claims priority of application No. 2022-012826 (JP), filed on Jan. 31, 2022.
Prior Publication US 2025/0100496 A1, Mar. 27, 2025
Int. Cl. B60R 21/207 (2006.01); B60R 21/233 (2006.01); B60R 21/2338 (2011.01); B60R 21/237 (2006.01); B60R 21/264 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/233 (2013.01); B60R 21/2338 (2013.01); B60R 21/237 (2013.01); B60R 21/264 (2013.01); B60R 2021/23386 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vehicular side airbag device mounted on a side frame of a seatback of a seat for a vehicle, comprising:
an airbag cushion having a bag shape and stowable in a prescribed rolled or folded configuration; and
an inflator for supplying gas to the airbag cushion;
wherein the airbag cushion includes:
a main chamber configured to expand and deploy from the side frame to a side of an occupant seated on the seat,
a sub chamber configured to expand and deploy to protrude from the main chamber to a side and a front of an occupant seated on the seat, the sub chamber including a rear side that faces toward the seatback and an opposite front side that faces away from the seatback when the sub chamber is deployed,
an upper tether for stretching from a portion of the main chamber above the sub chamber to the sub chamber, and
a lower tether for stretching from a portion of the main chamber below the sub chamber to the sub chamber,
wherein the upper tether and the lower tether each pass over the front side of the sub chamber upon expansion and deployment of the airbag cushion.