A clutch (10) for a seat-belt tensioner in a vehicle has a driving gear (16) adapted for being rotated in a driving direction (D) and in a releasing direction (R) by a reversible drive (12), a first pawl (26) arranged at a face side (24) of a seat belt spool (14), the first pawl (26) having a tooth (30) adapted to engage with a clutch-side toothing (22) on the driving gear (16) by pivoting around a pivot axis (28) on the seat belt spool (14). A second pawl (40) is arranged at a face side (42) of the driving gear (16) and interacts with a control disk (32) mounted on the seat belt spool (14), the control disk (32) being rotatable with respect to the seat belt spool (14). The control disk (32) interacts with the first pawl (26) by way of guiding geometries (34, 36) on the first pawl (26) and the control disk (32). A pawl release mechanism (90) is provided for the second pawl (40) that is adapted to release the second pawl (40) from the engagement with the control disk (32) after the first pawl (26) has reached its engaged position and to move the second pawl (40) back into its disengaged position. To close the clutch (10) the driving gear (16) is rotated in driving direction (R) and in reverse direction to open the clutch (10) again.
CLUTCH FOR A SEAT BELT TENSIONER AND METHOD FOR OPERATING THE CLUTCH
KUPPLUNG FÜR EINEN SITTZGURTSTRAFFER UND VERFAHREN ZUR BETÄTIGUNG DER KUPPLUNG
EMBRAYAGE POUR UN TENDEUR DE CEINTURE DE SÉCURITÉ ET PROCÉDÉ DE FONCTIONNEMENT DE L'EMBRAYAGE
29.05.2019
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |