Patent ID: 6478331
Filing Date: 2002-11-12
Classification: B60R

Abstract:
A gas bag having a deflated condition and an inflated condition and for use in a vehicle occupant restraint system, said gas bag comprising:first and second outer walls stitched to each other and defining an interior of the gas bag which interior receives gas to inflate the gas bag; said first wall defining an inflation port opening, said second wall being opposite said inflation port opening; a deflection part covering said inflation port opening and having an edge section, said deflection part being located in said interior of the gas bag and spaced apart from said first and second walls when the gas bag is inflated; a counterpiece located in said interior of the gas bag having an edge section stitched to said edge section of said deflection part and located between said deflection part and said first wall, said counterpiece being connected with said first wall; said stitched together deflection part and said counterpiece together defining a prechamber which communicates with said inflation port and receives gas to inflate the gas bag from the inflation port, said deflection part and said counterpiece defining overflow ports for directing gas from said prechamber into a volume between said first and second walls to inflate the gas bag, said prechamber, defined by said stitched together deflection part and said counterpiece, upon inflation of the gas bag, being located spaced apart from said second wall, said deflection part and said counterpiece being stitched to each other by individual seam sections, said overflow ports being formed between said individual seam sections.