Patent ID: 7740271

Claim:
An occupant protection system for a motor vehicle, comprising: a webbing for occupant restraint corresponding to a chest portion of an occupant; an expansion portion provided in the webbing for occupant restraint, corresponding to a head portion of the occupant seated in a vehicle seat when in expansion; an inflator capable of supplying inflation gas into the expansion portion; a side collision sensor for detecting or predicting a side collision; a control device for activating the inflator on the basis of an output signal from the side collision sensor; and a belt guide provided on an inclined portion of a shoulder portion of a seatback in the vehicle seat, and capable of being developed in a direction to be spaced apart from the head portion up to a predetermined angle limited by a stopper mechanism about a fulcrum positioned at an outside in a vehicle-width direction from an ordinary condition in which the webbing for occupant restraint is guided, at a time when the expansion portion is expanded, the belt guide causing the expansion portion to be expanded toward an upper position facing the head portion in the vehicle-width direction while limiting an expanding shape of the expansion portion, and wherein the expansion portion is expanded upward above and out of the belt guide in a vehicle-height direction, and a cover for covering the expansion portion in a condition being folded back, wherein an upper end side of the cover facing away from the shoulder portion of the seatback at the head portion side is stitched with a tear seam to be ruptured by inflation pressure of the expansion portion.