Patent attributes
An airbag apparatus includes an inflator and an airbag. The air bag is accommodated in a housing located in front of a seat arranged in a passenger compartment of a vehicle and configured to be deployed and inflated from the housing toward the seat by an inflating gas supplied from the inflator. The airbag includes at least three regular inflation portions arranged next to one another from the housing toward the seat, an upper connecting inflation portion that connects upper ends of adjacent ones of the regular inflation portions to each other, and a lower connecting inflation portion that connects lower ends of adjacent ones of the regular inflation portions to each other. The upper connecting inflation portion and the lower connecting inflation portion are alternately arranged from the housing toward the seat.