Patent attributes
An occupant protection device including a three-point seat belt, a waist air bag, and an anterior air bag. The three-point seat belt restrains an occupant seated in a seat of an automobile. The waist air bag is provided on the seat belt and deployable in front of a waist of the occupant. The anterior air bag is deployable on a front side of the waist air bag in such a manner that a load of a collapsing upper body of the occupant seated in the seat acts on the anterior air bag. The waist air bag is deployable so as to be stiffer than the deployed anterior air bag, in such a manner that the waist air bag is pushed towards the waist by the anterior air bag deformed by the load of the collapsing upper body acting on the anterior air bag.