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1. (WO2018108474) SEAT BELT RETRACTOR

Pub. No.:    WO/2018/108474    International Application No.:    PCT/EP2017/080159
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Fri Nov 24 00:59:59 CET 2017
IPC: B60R 22/41
B60R 22/415
Applicants: AUTOLIV DEVELOPMENT AB
Inventors: BROSOWSKI, Tjark
HUEG, Markus
Title: SEAT BELT RETRACTOR
Abstract:
The present invention relates to a seat belt retractor, comprising a belt shaft, which is mounted rotatably in a frame, for winding up a seat belt, and a blocking device for blocking the belt shaft in an unwinding direction, and a disc cam (1) which is mounted rotatably on the belt shaft, is spring-loaded in the winding-up direction and has a toothing (2), and a sensor device (3) with a deflectable inertial mass (4) and a blocking lever (5) which is deflectable by the deflection of the inertial mass (4) and which, when a predetermined vehicle deceleration is exceeded, blocks the disc cam (1) in relation to the belt shaft in the belt extension direction, by deflection of the inertial mass (4) and a resultantly forced engagement of the blocking lever (5) in the toothing (2) of the disc cam (1), and thereby activates the blocking device.