US 11,752,965 B2
Side airbag device and method for manufacturing side airbag device
Yuto Kobayashi, Kanagawa (JP); and Hiroyuki Shima, Kanagawa (JP)
Assigned to Autoliv Development AB, Vargarda (SE)
Appl. No. 17/595,480
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/013166
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2020/241020, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-102145 (JP), filed on May 31, 2019; and application No. 2020-021736 (JP), filed on Feb. 12, 2020.
Prior Publication US 2022/0227326 A1, Jul. 21, 2022
Int. Cl. B60R 21/207 (2006.01); B60N 2/58 (2006.01); B60R 21/237 (2006.01)
CPC B60R 21/207 (2013.01) [B60N 2/58 (2013.01); B60R 21/237 (2013.01); B60N 2002/5808 (2013.01)] 19 Claims
OG exemplary drawing
1. A side airbag device that is housed inside a vehicle seat and protects an occupant seated in the seat, comprising:
an airbag for restraining an occupant by inflating and deploying; and
an inflator for supplying inflation gas to the airbag, wherein
the airbag includes a pre-push chamber that contains the inflator inside and a main chamber that is connected to the pre-push chamber and deploys toward the front of the vehicle;
when the airbag is in a housed state, a first folded part is formed including the main chamber, and a second folded part is formed including the pre-push chamber;
at the portion where the first folded part and the second folded part overlap, a sewn part is formed that joins the first folded part and at least a portion of the pre-chamber; and
the sewn part is configured to break during deployment of the airbag.