Abstract: A belt retractor for vehicle safety belts to secure a child's seats or loads on a vehicle seat comprises a belt drum rotatably mounted in a housing and a locking mechanism for preventing rotation of the belt drum. A tripping mechanism is also provided, which has a coupling disk connected with the belt drum and provided with external gear teeth. A pawl is able to be selectively pivoted between an engagement position with the external gear teeth of the coupling disk and a normal position out of engagement with such external gear teeth. A ring of gear teeth is driven by the belt drum and two gear wheels are in mesh with said ring of gear teeth. The gear wheels are rotatably mounted on the ends of a rocking member, which is pivotally mounted on the housing. An actuating arm is connected with the rocking member for the operation of the pawl.

Abstract: For a sensor for the vehicle-sensitive triggering of the locking mechanism of a safety belt retractor in the back of a vehicle seat, with a ball seat (17) which has a trough (16) for accepting a sensor ball (15), and a pivotally mounted sensor lever (20) resting on the sensor ball (15), the amount of space required for pivoting the sensor in order to maintain the orientation of the sensor irrespective of the inclination of the seat back is to be reduced, without the distance between the tip at the free end of the sensor lever and the circumference of the control disk changing while the sensor is being pivoted. To this end, the sensor (10) is characterised by the ball seat (17) being pivotally mounted around an axis running through the center (C) of the sensor ball (15).

Abstract: The safety belt retractor comprises a frame, a belt drum rotatably supported in the frame, a locking mechanism for selectively locking the belt drum against rotation and a trip mechanism for activation of the locking mechanism. The trip mechanism has an externally toothed control disk mounted for limited relative rotation on the belt drum. A two-armed toggle lever is selectively pivotable on the frame between two stable positions. A planet wheel gearing has a sun wheel connected to the belt drum, an internally toothed ring gear fixed to the frame and a pair of planet wheels meshing with the sun wheel and the ring gear. The planet wheels have a peripheral toothing with an oversized tooth which extends radially beyond the toothing of the planet wheel. The toggle lever has one arm provided with an engagement member for engagement in the toothing on the control disk.