| 摘要 |
A device for adjustably fastening a continuous section of a belt-shaped element 1 to a rotary drum 2. Within a given rotation angle range for the drum 2, the belt element 1 can be displaced in the longitudinal direction, whilst outside this rotation angle range the belt element is fixedly attached to the drum. A locking pin 5 is movable in the direction towards and away from the hub 3 of the drum in a substantially radial groove 6 in at least the one end 4 of the drum. When the belt-shaped element 1 is wound onto the drum 2, the locking pin 5 of the belt-shaped element, when this is folded upon itself, is pressed down into a recess 7 in the hub 3, whereupon the peripheral surface 8 of the hub is closed. <IMAGE> |
