| 摘要 |
The drive arrangement (12) incorporates a pull mechanism(10) which has a pull, especially a toothed strap (16) for transmitting force. A tensioning device (26) tensions the pull mechanism and has an energy accumulator (56,57) The blocking device has a snap-in catch arrangement (40,44,42,48) for the stepped tensioning of the pull. The tensioning device has a ratchet arrangement locking and releasing a blocking or free-wheel arrangement (34) |
