| 摘要 |
PROBLEM TO BE SOLVED: To provide a bridge type crane capable of improving visibility from an operator's cab in the low lift work and the high lift work and allowing safe and efficient cargo handling work. SOLUTION: A trolley 4 provided with a hoisting accessory 6 traverses on a girder 3 elevatedly supported by a frame 2. A first operator's cab 7 is provided on the girder 3 side, a second operator's cab 8 located below the first operator's cab 7 is provided on the frame 2 side, and the crane is operated at the first operator's cab 7 or the second operator's cab 8 selected according to the cargo handling conditions (size of ships 9 and 10).
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