CRANE AND CRANE CONTROL METHOD

摘要

PURPOSE: To land a container being a suspending cargo on a floor in a short time without inconvenience such as a floor landing error. CONSTITUTION: This crane 10 is composed of a traversing trolley 13 movably supported by upper beams 12 of a crane traveling machine body 10a, a hoisting accessory 16 for holding the cargo suspending container Ca on the lower side, a suspending rope 15 for suspending the hoisting accessory 16 by the traversing trolley 13, and a hoist 14 for lifting the hoisting accessory 16 by winding and sending out the suspending rope 15. Horizontal positional dislocation detectors 20A and 20B are arranged for detecting dislocation between a position on a floor landing place on a target container Cb of at least two first and second corners A and B in the four corners of the cargo suspending container and a horizontal directional position. Floor landing detectors 23A and 23B are arranged for detecting floor landing of the first and second corners A and B.