CPC B60R 21/203 (2013.01) [B60R 21/231 (2013.01); B60R 21/233 (2013.01); B60R 21/2346 (2013.01); B60R 21/239 (2013.01); B60R 21/276 (2013.01); B60R 2021/23308 (2013.01); B60R 2021/23324 (2013.01)] | 11 Claims |
1. An airbag cushion comprising:
a main chamber configured to be deployed from a steering wheel; and
a plurality of air frame chambers configured to protrude radially from a center portion of the main chamber, each air frame chamber having a rib shape, and wherein, when the plurality of air frame chambers are deployed, the plurality of air frame chambers are deployed behind the main chamber to support the main chamber;
wherein a dead zone into which gas is not filled is provided around each air frame chamber, and an outer vent hole is formed in the dead zone and communicates with the main chamber, and
wherein a front panel and a rear panel are connected to each other by a breathable partition film located therebetween, the main chamber and each air frame chamber are respectively formed on opposite portions of the partition film, the dead zone is formed when the rear panel and the partition film are in close contact with each other.
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