Abstract: The invention relates to a harmonic reduction gear comprising a drive-side eccenter (12) which engages into a complementary opening (13) of an outer toothed member (14), and a housing-fixed inner toothed ring (15) which is arranged around the outer toothed member (14) and on which the outer toothed member (14) rolls with the reversed rotational sense as the eccenter (12) when the eccenter (12) is rotated.

Abstract: A belt winder for safety belts has a spindle (14) for the winding up of the safety belt (18) and a rotatable latching flange (12) which can be latched with respect to a fixed base frame (10). A torsion bar (16) is rotationally fixedly connected at its one end to the spindle (14) and is rotationally fixedly connected at its other end to the latching flange (12). A further torsion bar (26) is provided, which can be selectively switched in.

Abstract: The invention relates to an arrangement for the rolling up of a belt band (30) comprising a reel (1) which has at its jacket surface (2) an axial cut-out (4) extending parallel to the reel axis, comprising a belt band (30) secured to the reel (1) and comprising a reinforcement element (20) which is arranged at the reel (1) and which bridges the axial cut-out (4).

Abstract: An arrangement for the attachment of a belt to a reel of a safety belt reeling mechanism has a shaft (10') and a reel (12') arranged coaxial to the shaft with a belt (14') attached to the reel (12') forming a closed loop (16') at its end. A securing pin (18') extending transverse to the direction of the belt is provided in the loop and is not formed by the shaft (10').

Abstract: The invention relates to a safety belt arrangement in vehicles having a belt tensioner comprising: a holder which is to be secured to the vehicle chassis, with a belt winding reel with a safety belt wound thereon being rotatably mounted on the holder; a belt retraction spring arrangement by means of which the safety belt is continuously lightly pretensioned in the draw-in direction so that it only loosely lies against the vehicle occupant secured by it; and an auxiliary drive which is separated drivewise by a clutch from the belt winding reel but is activated abruptly with an accident-dependent acceleration and is rotationally fixedly coupled to the belt winding reel via the then engaged clutch.

Abstract: A belt tensioner for safety belt arrangements in motor vehicles has a holder (11) on which are provided a belt winding reel (12) with a safety belt (13) coiled thereon, a blocking arrangement and an additional drive (15) connected via clutch (20) to the belt winding reel (12). The additional drive (15) contains a pressure source (16) which abruptly builds up a high pressure in a pressure chamber on being triggered and also contains a torque generating device (18) acted on by the pressure in the pressure chamber (17) and a drive shaft (19) connected to the latter. The drive shaft (19) is rotationally fixedly connectable to the belt winding reel (12) via the clutch (20).