Patent attributes
An airbag apparatus includes a gas generator and an airbag. The gas generator includes a gas generator main body and at least one mounting protrusion. The airbag includes a first fabric portion, a second fabric portion, and a storage chamber located between the first fabric portion and the second fabric portion. Part of the storage chamber is constituted by the first fabric portion. The storage chamber includes as insertion port, which allows the gas generator to be inserted, and one or more mounting holes, which allow the at least one mounting protrusion to be passed. The rearmost one in the insertion direction of the one or more mounting holes is a rearmost mounting hole. The storage chamber further includes an opening promoting portion, which is located between the insertion port and the rearmost mounting hole and causes the insertion port to open.