| 摘要 |
The invention relates to a belt retractor (10) for a seat belt (30), comprising a belt reel (20) for winding and unwinding the seat belt, and a tightening drive, comprising the following: a gas generator (60), a drive device (40) connected to the belt reel (20), and a connecting device (50), which connects the gas generator and the drive device, wherein the connecting device has a guide tube (70) and a plurality of thrust members (80) located in the guide tube, said members being accelerated after the gas generator has been triggered and directly or indirectly driving the drive device for winding the seat belt. According to the invention, at least one sealing element (100a, 100b, 100c) is disposed in the guide tube (70) between the gas generator (60) and the side (80a') facing the gas generator of at least one of the thrust members (80a, 80b, 80c), said sealing element resting against the inside of the guide tube. |
