| 摘要 |
The invention relates to a belt tensioner (10) for a safety belt system, comprising a belt shaft housing (18), a belt shaft (12) that is rotatably mounted in the belt shaft housing (18) about an axis (A), a cable reel (36) that is rigidly connected to the belt shaft (12), and a tensioner drive (40) which comprises a tensioner tube (42), a deformable plastic element that is longitudinally movable in the tensioner tube (42), a drive pinion (59) and a traction cable (41) that is partially wound onto the cable reel (36). According to the invention, the plastic element can engage into the drive pinion (59) and drive said drive pinion (59) in the tensioning direction, and the traction cable (41) is wound onto a cable drum (60) during the rotation of the drive pinion (59) and is unwound from the cable reel (36) as the belt shaft (12) rotates. |
