Belt tensioner for seat belt system, has coupling mechanism provided with coupling latch, where coupling latch develops force between power transmission element and belt retractor axis in control position

摘要

The tensioner (10) has a coupling mechanism converting movement of a power transmission element (30) into rotation of a belt retractor axis (12), where a drive unit shifts the power transmission element. The coupling mechanism has a coupling latch (26), which is tiltable from a starting position to a control position, where the coupling latch develops a force between the power transmission element and the belt retractor axis in the control position. The coupling latch is mounted on a pivotably mounted drive component (22).