US 12,472,899 B2
Curtain airbag apparatus
Kum Ho Jo, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Aug. 9, 2024, as Appl. No. 18/799,177.
Claims priority of application No. 10-2024-0043220 (KR), filed on Mar. 29, 2024.
Prior Publication US 2025/0303998 A1, Oct. 2, 2025
Int. Cl. B60R 21/233 (2006.01); B60R 21/21 (2011.01); B60R 21/261 (2011.01)
CPC B60R 21/233 (2013.01) [B60R 21/21 (2013.01); B60R 21/261 (2013.01); B60R 2021/23308 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A curtain airbag apparatus for a vehicle, the curtain airbag apparatus comprising:
an airbag cushion comprising a first main chamber, a second main chamber, and a third main chamber respectively arranged in a first-row area, a second-row area, and a third-row area in the vehicle;
an extra chamber arranged or disposed between the second main chamber and the third main chamber; and
a diffuser coupled to the airbag cushion and is configured, upon deployment of the airbag cushion, to:
distribute gas directed towards the first main chamber and the second main chamber; and
distribute gas from the second main chamber to the third main chamber,
wherein the extra chamber is configured to pull the third main chamber downward to increase airflow from the second chamber and accelerate deployment of the third main chamber,
wherein the curtain airbag apparatus is configured to be installed between a plurality of pillar trims in the vehicle,
wherein the third main chamber comprises:
a first inflation portion configured to be inflated by gas distributed through the diffuser during deployment of the airbag cushion; and
a second inflation portion connected to the first inflation portion and configured to be inflated by gas flowing into the first inflation portion, and
wherein the second inflation portion is configured to maintain a folded state inside the first inflation portion before deployment of the airbag cushion.