Patent ID: 9511740
Filing Date: 2016-12-06
CPC Classification: B60R

Claim Text:
1. An air bag cushion device for protecting a pedestrian, comprising: an inflator mounted on a vehicle body and configured to generate a working gas; a main chamber configured to receive the working gas generated from the inflator and expand in a widthwise direction of the vehicle body; a sub-chamber connected to the main chamber, configured to receive the working gas through the main chamber, and expand to the outside of an A-pillar of the vehicle body; a connection path having both sides connected to the main chamber and the sub-chamber, respectively, so as to transfer the working gas between the main chamber and the sub-chamber; a first connection member installed in the sub-chamber extending in a longitudinal direction of the A-pillar, and connecting the inward-facing surface of the sub-chamber, facing the A-pillar, to the outer surface of the sub-chamber, isolated from the A-pillar; and a second connection member installed in the sub-chamber in a direction crossing the first connection member and dividing the sub-chamber into a plurality of chambers, wherein: the first connection member comprises a plurality of first connection holes through which working gas passes; and the second connection member comprises a plurality of connection holes through which working gas passes, and is installed in the widthwise direction of the vehicle body inside the sub-chamber.