Patent ID: 6068664
Filing Date: 2000-05-30
Classification: B60R

Abstract:
A tightening device for a safety belt, said tightening device comprising:a cable having a first end and a second end;a drive connected to said first end of said cable, wherein said drive, when activated, moves said cable in a tightening direction;said second end of said cable connected to a safety belt;a deflection device about which said cable is guided;said deflection device comprising a rotatable eccentric pawl and a stop, wherein said stop limits rotation of said eccentric pawl when rotated upon movement of said cable in said tightening direction and thus defines a deflection position of said eccentric pawl;said eccentric pawl having an elongate extension extending in a direction of a cable portion extending between said drive and a deflection location at said deflection device;said eccentric pawl having a deflection end guiding said cable at said deflection location;said eccentric pawl having an eccentric arc opposite said deflection end;a counter plate positioned opposite said eccentric pawl, with said cable being guided between said counter plate and said eccentric pawl;wherein said eccentric arc is a return lock preventing movement of said cable in a return direction opposite said tightening direction by engaging said cable and locking said cable in said return direction;wherein said eccentric arc has an outer toothing and wherein a first tooth of said outer toothing positioned proximal to said deflection end rests at said cable in said deflection position of said eccentric pawl;wherein said eccentric arc has a radius, relative to a rotational axis of said eccentric pawl, increasing from said first tooth in a direction away form said deflection end, wherein said radius at an end of said eccentric arc remote form said first tooth is greater than a spacing between said rotational axis and said counter plate;wherein said deflection end has a radius increasing from said first tooth and wherein the greatest value of said radius of said deflection end is greater than a spacing between said rotational axis and said counter plate.