| 摘要 |
The carriage (11) has a rotary lamellar hook (12) which can be driven by drive members (14,15) but is prevented from turning beyond a basic position through a stop which interacts with the drive members to keep the hook in the basic position. The drive members are a drive sleeve (14) with toothed rim section over part of the outer circumference, and a worm wheel (15) with at least one external thread. One end of the worm thread interacts with a stop face which adjoins the toothed rim section on the outer circumference of the drive sleeve. |
