US 11,851,019 B2
Vehicle seat airbag apparatus
Il Chang Sung, Gyeonggi-do (KR); and Sang Won Hwangbo, Gyeongg-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Hyundai Mobis Co., Ltd., Seoul (KR)
Filed on Jul. 28, 2022, as Appl. No. 17/876,097.
Claims priority of application No. 10-2021-0165865 (KR), filed on Nov. 26, 2021.
Prior Publication US 2023/0166682 A1, Jun. 1, 2023
Int. Cl. B60R 21/207 (2006.01); B60R 21/233 (2006.01); B60R 21/2338 (2011.01); B60R 21/0136 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/0136 (2013.01); B60R 21/233 (2013.01); B60R 21/2338 (2013.01); B60R 2021/23324 (2013.01); B60R 2021/23384 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A vehicle seat airbag apparatus comprising:
a side cushion configured to protrude and deploy forward from a seatback and positioned at each of the side surfaces of a passenger;
a front cushion configured to protrude and deploy from the side cushion to the front of the passenger;
a diaphragm which is installed at a portion to which the side cushion and the front cushion are connected so as to separate a side chamber and a front chamber, and comprises a basic vent hole configured to always connect the side chamber and the front chamber, and an active vent hole configured to connect or disconnect the side chamber and the front chamber; and
an active vent hole operating device provided to be connected to the active vent hole and configured to open or close the active vent hole depending on a collision situation,
wherein a protection area, in which the passenger is protected by the side cushion, comprises the head, the chest, the abdomen, and the pelvis area of the passenger;
wherein, when the active vent hole is positioned higher than the basic vent hole, a function for protection of the head of the passenger by the side cushion is enhanced; and
wherein, when the active vent hole is positioned lower than the basic vent hole, a function for protection of the pelvis of the passenger by the side cushion is enhanced.