Patent ID: 7152878
Filing Date: 2006-12-26
Classification: B60R

Abstract:
1. An air bag system comprising: an inflator, a folded air bag that is inflatable to be deployed into a passenger compartment of a vehicle by a gas produced by the inflator at a time of collision, and prior to being folded the air bag has a polygonal shape with a plurality of apex portions, a retainer supporting the air bag and the inflator, and a plurality of restricting members, each restricting member being connected to a respective one of said apex portions, the restricting members coupling the plurality of apex portions of the polygonal air bag and the retainer together, and the restricting members overlapping with each other and fixed to the retainer, wherein the inflation of the air bag to the maximum capacity thereof is restricted by the restricting members in an earlier stage of deployment, and in a later stage of deployment, when an internal pressure of the air bag increases to a predetermined value or higher, the restricting members break so as to allow the air bag to be inflated to the maximum capacity thereof.