| 摘要 |
PROBLEM TO BE SOLVED: To correspond to various applications without increasing stress such as moment, load, etc. SOLUTION: This crane device is provided with a mast 1 erected on a body or the ground, a fixing beam 3 fixed on the mast 1, a first weight lifting machine 6 mounted in a tip part of the fixing beam 3, a turning beam 8 which is supported on either or both of the fixing beams 3 and can turn centered on the mast 1, and a second weight lifting machine 9 mounted in the direction of span of the turning beam 8 so as to travel.
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