Patent ID: 7900957

Claim:
An airbag apparatus comprising an inflator that discharges inflation gas in response to impact applied to a vehicle and an airbag that is inflated by the inflation gas supplied by the inflator to restrain an occupant, thereby protecting the occupant, wherein the airbag includes a first inflation section and a second inflation section that are each formed like a bag and inflated by the inflation gas from the inflator, wherein the first inflation section has a receptacle portion, and the second inflation section has an insertion portion that is arranged in the receptacle portion in an overlapping manner, and wherein the first inflation section and the second inflation section are connected to each other in a state where a gas discharge passage is formed between the overlapping insertion portion and receptacle portion, the gas discharge passage being used for discharging the inflation gas in the first inflation section to the outside of the airbag, and a part of the insertion portion separates from the receptacle portion so that the gas discharge passage is opened.