FOLDING TOWER CRANE Russian patent published in 2024 - IPC B66C23/32 B66C23/68 

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular to folding tower crane and method of vertical movement of boom. Folding tower crane comprises a platform with a tower, a cage mounted on the tower with the possibility of vertical movement along it, folding cable-stayed system, connected to the cage, boom, one end connected to the cage with the possibility of folding relative to it, wherein the boom is suspended on the cable-stayed system, system for retaining cable-stayed system, comprising a first drive located on a platform, and the first rope, which connects the first drive with the cable-stayed system, the boom rope-block system containing the second drive located on the platform, the second rope and at least one unit. Second rope connects the second drive with the cage through the said at least one unit located on the tower head. Cage is suspended on the head of the tower by means of the said at least one unit. Control module is configured to control the first drive and the second drive for simultaneous holding of the boom in horizontal position by means of the first drive when moving the boom along vertical with the help of the second drive.

EFFECT: higher efficiency of construction systems, including higher automation and speed of construction.

9 cl, 16 dwg