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VEHICLE IMPACT-CUSHIONING DEVICE

  • US 3,656,791 A
  • Filed: 10/12/1970
  • Issued: 04/18/1972
  • Est. Priority Date: 10/12/1970
  • Status: Expired due to Term
First Claim
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1. An impact-cushioning device adapted to be mounted at an impact position on a vehicle, comprising in combination a base member adapted to be secured to said vehicle and having a body portion and an annular flange projecting therefrom, a cover member having a crown portion and an annular extension integrally formed therewith and sealingly secured to said base member annular flange, said crown portion being subject to facile rupture upon impact with a resistant object, an inflatable expandable bag having a body portion compactly folded within said crown portion and a tubular end disposed within said annular extension and adjacent the inner surface thereof to form a gas receiving chamber defined by said base member body portion and said bag tubular end, a triggering pin partially disposed in said inflatable bag and having a head within said bag closely adjacent the crown peak of said cover member, and a stem connected to said head and extending through said compactly folded bag body portion, said gas chamber and said base member body portion, a valve controlled cylinder charged with gas under pressure connected to said base member and communicating with said chamber for discharge of said gas thereinto and into said bag, said cylinder being operatively connected to valve means communicating with said gas chamber, the distal end of said pin stem being disposed in said valve means for actuation thereof upon impulsion of said pin, whereby said bag upon inflation provides an impact-cushioning element between said vehicle to which said device is secured and a resistant object impacted by the crown portion of said device.

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