Patent ID: 7726685
Filing Date: 2010-06-01
Classification: B60R

Abstract:
1. An airbag comprising: an occupant-facing surface, a rear surface opposite to the occupant-facing surface, and a side surface in an expanded state, a first venthole provided on the rear surface or the side surface, a lid member having at least one end side coupled with the airbag and the other end side not coupled therewith, a constantly-open second venthole provided in an area in the airbag on the other end side of the lid member, which is not covered by the lid member, and a connecting member for connecting the other end side of the lid member and the occupant-facing surface, said connecting member passing through the constantly-open second venthole and an inside of the airbag, wherein when the airbag is expanded, the lid member is under strain along an outer surface of the airbag and is made to overlap the first venthole by being pulled in a direction where the other end side of the lid member becomes separated from the one end side via the connecting member, and thereby the first venthole is closed or opened by a small amount, and wherein the lid member becomes separated from the first venthole by an occupant coming to contact with the expanded airbag and causes the occupant-facing surface to retreat, and thereby the first venthole is opened or opened by a large amount.