| 摘要 |
<p>A seat belt retractor has a belt reel (2) that is rotatably mounted on a frame (1) and on which a seat belt can be wound and unwound. A motive spring (3) biases the belt reel in the winding direction. An electric motor (4) adjusts the spring force of the motive and/or a torque produced for tightening the seat belt. The torque can be transmitted to the belt reel by a clutch (5). The deformation of a deformable spring element (6) brings the clutch into an engaged state. The spring element is held on one end of the spring by a holding device (12) actuated by inertial force, at least for initiating its deformation.</p> |
