Patent ID: 7455315

Claim:
An air bag module for protecting legs of an occupant, the air bag module comprising: an inflator for supplying gas; and an air bag supplied with the gas from the inflator, and arranged to expand between an attachment surface and the occupant sitting on a seat, said air bag divided into a plurality of chambers, each of said chambers comprising a rear surface for facing the occupant and a front surface for facing the attachment surface, and a first side face and a second side face connecting between the front surface and the rear surface at opposing bilateral sides of said air bag, respectively, wherein, upon inflation of said air bag, a thickness of each one of said chambers between said rear surface and said front surface at said second side face is larger than a thickness between said rear surface and said front surface at said first side face, while said rear surface of the air bag is substantially parallel to a virtual line extending substantially along a bilateral direction of a vehicle.