Inflatable air bag for motor vehicles for attenuating the impact effect of the passenger in case of accident

• US 4,126,325 A
• Filed: 06/29/1976
• Issued: 11/21/1978
• Est. Priority Date: 06/20/1970
• Status: Expired due to Term

• Current Assignee: Klippan GmbH Hamburg
• Original Assignee: Klippan GmbH Hamburg
• Inventors: Weman, Per O.
• Primary Examiner(s): Betts, Kenneth H.
• Application Number:
  US05/701,009
• Time in Patent Office: 875 Days
• Field of Search: 280/738, 280/739, 280/743, 244/138
• US Class Current: 280/738
• CPC Class Codes: B60R 2021/23115 with inflatable support compartments creating an internal suction volume
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration

Abstract

Inflatable air bag having one or several air intake openings for drawing air from the passenger compartment into the air bag, and closure means for automatically sealing the air intake openings after inflation of the air bag. The closure means may consist of bands, tubes, flaps and the like.

Claims

1. In an inflatable air bag disposed within the passenger compartment of a motor vehicle subject to impact and adapted for inflation with fluid supplied in part from a cartridge upon impact of the vehicle, the improvement wherein said bag has (a) at least one air intake opening provided in the front wall thereof, and (b) closure means comprising a flap operably associated with said air intake opening and a nozzle in communication with said cartridge and disposed within said bag, said nozzle having a plurality of openings, at least one opening directing said fluid towards the corners of said bag so as to inflate said bag and at least one other opening directing said fluid against the back side of said flap to automatically seal said air intake opening after inflation of said bag.

2. An inflatable air bag as recited in claim 1, wherein said fluid is gas.

3. In an inflatable air bag disposed within the passenger compartment of a motor vehicle subject to impact and adapted for inflation with fluid supplied in part from a cartridge upon impact of the vehicle, the improvement wherein said bag has (a) at least one air intake opening provided in the front wall thereof, and (b) closure means comprising a flap operably associated with said air intake opening and a nozzle in communication with said cartridge and disposed within said bag, so as to direct said fluid against the back side of said flap to automatically seal said air intake opening after inflation of said bag, said fluid comprising water.