| 摘要 |
A seat belt retractor (1) with a vehicle-sensitive, inertia sensor (4), and a blocking device to block belt extraction movement of a belt shaft (3) controllable by an inertia sensor (4). The inertia sensor (4) has a sensor housing (5) with a gearing (7) mounted to swivel, blocking element (10) coupled on the belt shaft (3), engages in the gearing (7) in a first position (I) to fix the sensor housing (5) and swivels during a belt retraction movement from a first position (I) into a second position (II) where it does not engage in the gearing (7). A guide is provided in the form of a longitudinal recess (12) with a variable width (B). The blocking element (10) engages with a protrusion (14) in the recess (12) and during the rotation of the belt shaft (3) to cause relative movement in the longitudinal direction of the recess (12). |
