Airbag device and method of fabricating same

An airbag device comprising:

• a cushion mounted on an instrument panel and configured to inflate by injection of gas from an inflator and deploy upwardly between the instrument panel and an occupant;
• a partition provided in the cushion and configured to compartmentalize an interior of the cushion, the partition comprising a first opening through which gas flows upon deployment of the inflator;
• and
• a vent provided in the partition and configured to be in communication with the first opening to guide flow of gas,
• wherein the vent includes a vent body, wherein one edge of the vent body has a shape of a straight line and another edge of the vent body has a shape of an inclined line such that the inclined line is longer than the straight line, and wherein, when gas pressure is applied so as to push gas from inside a second cushion portion toward a first cushion portion through the first opening, the straight edge of the vent body is bent by the gas pressure to deform the vent body into a folded shape such that an internal flow path of the vent body is closed to obstruct or reduce flow of gas from inside the second cushion portion toward the first cushion portion, wherein:
• the first cushion portion is configured to deploy toward a front of the occupant;
• and
• the second cushion portion is configured to deploy at a rear of the first cushion portion to support the first cushion portion.