CONTROL METHOD OF PARALLEL RUNNING TYPE CABLE CRANE

PROBLEM TO BE SOLVED: To provide a control method of a parallel running type cable crane by which the parallel running type cable crane can be automatically operated and controlled. SOLUTION: This is a control method of a parallel running type cable crane 50 which is employed to move a bucket 12 between a banker part 20 and a concrete placing position. Using running travel amounts of a main tower 4 and an auxiliary tower 5, reeling out length of a transverse rope 10, reeling out length of a hoisting rope 11, running speeds of the main tower 4 and the auxiliary tower 5, and reeling out speeds of the transverse rope 10 and the hoisting rope 11 as calculation elements in accordance with a conveyance start position and a conveyance end position, the behaviors of the main tower 4, the auxiliary tower 5, a main rope 7, a transverse trolley 9, and the bucket 12 are analyzed to put operation patterns into models. When the cable crane 50 is operated, the operation pattern put in the model in accordance with set conditions is selected to automatically control the cable crane 50 by following the operation pattern.