×

Triggering device

  • US 7,575,274 B2
  • Filed: 12/18/2007
  • Issued: 08/18/2009
  • Est. Priority Date: 07/01/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. An actuation unit for moving a head rest in a vehicle seat and comprising a triggering device, said triggering device comprising:

  • a housing body defining a chamber,a pyrotechnic gas generator within said housing body and adapted for producing a pressurized gas within said chamber,a piston extending through said housing body and having an inner end and an outer end, said piston being movable in response to said pressurized gas within said chamber, anda triggering member adapted to engage the outer end of the piston and movable from a blocking position to a release position in response to movement of said piston by said pressurized gas,wherein said piston comprises a bore extending from said inner end to said outer end for releasing said pressurized gas.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×