摘要 |
The present invention refers to a device for locking the descent of the reel-holder trolley along a sliding guide under the control of a traction belt in a fixed column winding apparatus. The device comprises a clamp of connection between belt and trolley, that is attached to the belt and is mobile in respect to the trolley between a first raised position in which the clamp is held by the upward traction exerted by the belt and holds in turn a pair of levers in such a position as not to interfere with side walls of the sliding guide of the trolley and a second position in which it moves automatically by gravity in the event the traction of the belt is released and in which it permits said pair of levers to be elastically stressed in such a position to enter transversally openings of the side walls of the sliding guide of the trolley to lock the descent of the latter.
|