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Safety belt tensioner for motor vehicles

  • US 5,588,677 A
  • Filed: 06/19/1995
  • Issued: 12/31/1996
  • Est. Priority Date: 06/23/1994
  • Status: Expired due to Term
First Claim
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1. Safety belt tensioner for motor vehicles which can be mounted on a vehicle chassis (12), the tensioner comprising an elongate drive device (11) which is to be arranged substantially horizontally in the motor vehicle, a flexible draw element (13) which is displaceable in its longitudinal direction by the drive device (11) and which is guided upwardly from the drive device (11) via deflection member (14), which is secured to the vehicle chassis (12), to a belt lock part (15) which cooperates with a counter-piece (17) arranged at the end of a three-point belt or of a lap belt (16) and which is mounted there so as to transmit a tensile force, characterised in that:

  • the deflection member (14) is simultaneously designed as a mounting element which secures the drive device (11) to the vehicle chassis (12), and is directly and firmly connectable to the vehicle chassis (12);

    the deflection member has a bolt or sleeve section (14'"'"') mountable to the vehicle chassis (12) and a deflection section (14"); and

    the deflection section (14") has a round peripheral surface which is dimensionally matched to the draw element (13) and which projects radially outwardly beyond the bolt or sleeve section (14'"'"') to form ring step (14'"'"'") between the bolt or sleeve section and the deflection section; and

    a projection (20) of the drive device (11) having a through bore (19) through which the bolt or sleeve section can be inserted with the ring step abutting and pressing against the projection.

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