Belt Retractor With an Electromotive Winding Aid and Method for Activating an Electromotive Winding Aid for a Belt Retractor

摘要

The invention relates to a belt retractor with an electromotive winding aid (4) comprising a belt shaft (1) which is pretensioned in the winding-up direction by a spring and is mounted rotatably in a frame (3) of the belt retractor on which a belt strap (2) can be wound up. The electromotive winding aid (4) can be activated as a function of the belt-strap-retraction speed (BRS).

主权项

1. A seat belt retractor for a seat belt comprising:
a belt shaft rotatably mounted in a frame of the seat belt retractor for winding the seat belt and a retractor spring for pretensioning the seat belt in the direction of winding of the seat belt, an electromotive winding aid acting on the belt shaft, and a control unit for controlling the electromotive winding aid as a function of a seat belt feed rate.