| 摘要 |
PROBLEM TO BE SOLVED: To provide a bridge type crane preventing wheels suspending a crane from floating from a beam even on a slope track. SOLUTION: This bridge type crane 10 capable of traveling on the track 14 includes a frame 16 having a girder 24 extending in the direction crossing the track, a beam 18 supported by the girder of the frame and extending along it, and the crane 20 suspended from the beam via, at least, the pair of wheels 44. The beam can swing about an axis in parallel to the girder 24.
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