Patent ID: 7641228

Claim:
An air bag system for motor vehicles, the system comprising: an air bag having at least one impact surface for lateral restraint of a vehicle occupant, the air bag in a non-inflated state is arranged in a housing located below an upper edge of a windowsill of a vehicle door, and the air bag in an inflated state assumes a protective position that is at least in part projected above the upper edge of the windowsill, wherein below the upper edge of the windowsill along the vehicle door there is a supporting surface for the air bag which extends generally vertical, the air bag defining a main chamber and a supporting chamber, wherein the impact surface is formed by at least part of the main chamber, and the supporting chamber in the inflated state is positioned between the main chamber and the supporting surface so as to be directly supported at least in part by the supporting surface and to cooperate with the main chamber to hold a side of the vehicle occupant for providing the lateral restraint of the vehicle occupant.