A belt retractor (10) for a vehicle safety belt system comprises a belt tensioner for tensioning a safety belt during a tensioning phase, and a load limiter for limiting the load applied by the safety belt on a vehicle occupant during a load limiting phase after the tensioning phase. The belt tensioner includes a frame (12), a belt reel (14), a toothed pinion (22), a drive unit (16) and an elongated load transmission element (20). The belt reel (14) is rotatably supported in the frame (12), and the pinion (22) is coupled to the belt reel (14). The pinion (22) is movable from a first position, in which the pinion (22) is in engagement with the load transmission element (20), to a second position, in which the pinion (22) is not in engagement with the load transmission element (20). According to a method of using such a belt retractor (10), during the belt tensioning phase the drive unit (16) moves the load transmission element (20) in a tensioning direction (A) so that the load transmission element (20) engages the teeth of the pinion (22) so as to rotate the pinion (22) and the belt reel (14) in a winding direction (B), thereby urging the pinion (22) in the first position. At the beginning of the load limiting phase the load transmission element (20) is in contact with the teeth of the pinion (22) so that the force (D) applied by the safety belt on the belt reel (14) urges the pinion (22) into the second position.
A BELT RETRACTOR FOR A VEHICLE SAFETY BELT SYSTEM AND METHOD OF USING SUCH BELT RETRACTOR
GURTAUFROLLER FÜR EIN FAHRZEUGSICHERHEITSGURTSYSTEM UND VERFAHREN ZUR VERWENDUNG SOLCH EINES GURTAUFROLLERS
ENROULEUR DE CEINTURE POUR UN SYSTÈME DE CEINTURE DE SÉCURITÉ DE VÉHICULE ET PROCÉDÉ D'UTILISATION D'UN TEL ENROULEUR DE CEINTURE DE SÉCURITÉ
13.11.2019
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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