The invention relates to a belt tensioner with a belt shaft (10), a force limitation arrangement (70) connected with the belt shaft (10), and a tensioner drive wheel (20) coupled with the belt shaft (10) so as to be locked against relative rotation, in which a retaining element (30, 50) is provided for coupling the tensioner drive wheel (20) to the belt shaft (10), and the retaining element (30, 50) is releasable by the rotation of the belt shaft (10) in the belt webbing withdrawal direction after the tensioning movement has been completed.
Seat belt pretensioner
2016-04-05
Patent
Electronic Resource
English
IPC: | B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES , Handhaben von dünnem oder fadenförmigem Gut, z.B. Folien, Bahnen, Kabeln / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |