TOWER CRANE AND METHOD OF ITS MOUNTING AND DISMANTLING Russian patent published in 2008 - IPC B66C23/20 

FIELD: transport.

SUBSTANCE: tower crane incorporates a crane boom with lifting hook arranged atop the tower, a boom head and a balancer cantilever, a crane boom turning mechanism to move along the tower, a tower advancing cage arranged beneath the aforesaid boom turning mechanism, wall-mounted supports with one end linked to the tower and the other one jointed to the building, wall-mounted supports assembly and disassembly appliances fitted on the crane. The assembly and disassembly appliance furnished with a drive provided with a load-lifting element on its end is fastened to the tower advancing cage and represents a cantilever turning about the cage in the horizontal plane. The cantilever is fitted on the cage so that, on turning, its load gripping appliance is located in either the tower crane hook range or the wall-mounted support ends area, the said wall-mounted supports being located nearby the crane tower. The proposed device allows mounting and dismantling of the tower crane.

EFFECT: higher crane efficiency due to time- and labor-savings in mounting and dismantling, higher safety of mounting and dismantling.

2 cl, 10 dwg