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ENERGY TRANSFORMER FOR SECURING A SAFETY BELT ON A SEAT OF A VEHICLE

  • US 3,848,828 A
  • Filed: 02/18/1972
  • Issued: 11/19/1974
  • Est. Priority Date: 05/13/1968
  • Status: Expired due to Term
First Claim
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1. In combination with a safety belt, an energy transformer securing a safety belt selectively to a seat of a vehicle and to a vehicle itself, comprising a housing, a drum rotatably mounted and in said housing having a recess, belt means wound on said drum, said drum having a central bore, a hub disposed in said recess, a laminated friction brake including inner plates and outer plates, disposed parallel to and adjacent each other, said outer plates being secured to said drum for joint rotation with the latter, said inner plates being secured to said hub for joint rotation with the latter, spring means for pressing said plates against each other, means for varying the pressure applied to said plates, a coupling member axially displaceable relative to and disposed in the central bore of said hub, a disc having a first gearing disposed coaxially with said coupling member and connected with said housing, a second gearing provided on one end face of said coupling member engageable with said first gearing, and releasable therefrom upon displacement of said coupling member, spring means for retaining said first gearing in engagement with said second gearing, and said coupling member forming jointly with said disc an overrunning clutch to permit rotation of said drum jointly with said inner plates connected with said housing.

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