Driver's cabin, for tower crane, consists of primary base, to ascend and descend the crane mast and carrying on crown wheel a secondary base, which rotates on primary base and carries cabin.

摘要

The driver's cabin of a tower crane, consists of primary sliding base (8), fixed in rotation and designed to ascend and descend the length of the mast (2) of the crane, by means of a primary drive system. The primary sliding base carries on its upper part, at least one crown wheel (9), which carries a second base (14), which carries the cabin (11). The cabin is driven in rotation around the primary base and the mast by means of the secondary drive system (22), independently of the rotation of the crane jib.