Lifting device for moving objects through windows

摘要

The lifting device consists of a stand-frame (5) which is fixed against a wall by stays and ballast. A double-hinged frame (2) is linked to the frame to which a pivot arm (3) is fixed. One end of the pivot arm is fixed to a manual or motor-driven cable pulley (1) and the other end is fixed to the cable roller allowing the cable to slide downwards. The frame can be placed in front of a wall-opening, window or door and is prevented from tilting by a locking piece (6) or the ballast (10). A hook or H-cross-bar (8) is suspended with a ratchet lashing strap.