Lifting device for heavy loads, has lifting mast foot and set of wheels movable in any direction independently from counterweight

摘要

The foot of the lifting mast (1) and the set of wheels or carriage shoe construction (3, 4) can be moved in any direction, independently from the counterweight (9) acting as a ballast weight. The counterweight and wheels or carriage shoe construction can be moved in any direction, independently from the mast foot. The back mast (2) includes two ball hinges (12, 14) allowing it to be slanted in any direction.