US 12,145,524 B2
Vehicular airbag device
Kazuki Morita, Kanagawa (JP); Kazuhiro Abe, Kanagawa (JP); and Keitoku Miyagi, Kanagawa (JP)
Assigned to Autoliv Development AB, Vårgårda (SE)
Appl. No. 17/996,740
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed Apr. 14, 2021, PCT No. PCT/JP2021/015468
§ 371(c)(1), (2) Date Oct. 20, 2022,
PCT Pub. No. WO2021/215331, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 2020-077011 (JP), filed on Apr. 24, 2020.
Prior Publication US 2023/0219516 A1, Jul. 13, 2023
Int. Cl. B60R 21/203 (2006.01); B60R 21/2338 (2011.01); B60R 21/239 (2006.01)
CPC B60R 21/203 (2013.01) [B60R 21/2338 (2013.01); B60R 21/239 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An airbag device for a vehicle, comprising:
an inflator provided on a prescribed location of the vehicle; and
an airbag cushion that receives gas from the inflator and expands and deploys between the steering wheel and an occupant in the driver seat; wherein
the airbag cushion includes:
a chamber for gas accumulation formed in a bag shape including an occupant side panel positioned on the occupant side and a steering wheel side panel positioned on the steering wheel side,
a notched gas discharge section that is cut in a prescribed location of the steering side panel along a prescribed line, and
a first tether extending over a prescribed location of the chamber,
the first tether includes:
a first end connected to the occupant side panel inside the chamber or near the occupant side panel, and
one or a plurality of second ends directly connected to the steering wheel side panel,
the one or a plurality of second ends of the first tether are connected near the edge of the gas discharge section of the steering wheel side panel of the chamber,
the edge of the gas discharge section can be pulled inside the chamber by a taut first tether, and
the area of the gas discharge section opening in a state of the edge of the gas discharge section being pulled inside the chamber is smaller than when the first tether is relaxed so as to reduce an amount of gas discharged from the opening in the state of the edge of the gas discharge section being pulled inside the chamber, wherein the first tether does not plug the gas discharge section.