| 摘要 |
PROBLEM TO BE SOLVED: To provide an overhead crane capable of expanding a running range to an end part of a building.SOLUTION: An overhead crane 1 comprises: a pair of travel rails 2 installed on a building 6; a pair of girders 3 bridged between the pair of travel rails 2, and capable of traveling on the pair of travel rails; a trolley 4 installed so as to move freely on the pair of girders 3; and an auxiliary crane 10 installed to lower parts of the pair of girders 3, and having auxiliary hoist 13 capable of moving along a travel direction where the pair of girders 3 travel on the pair of travel rails 2, and a traverse direction where the trolley 4 moves with respect to the pair of girders 3.SELECTED DRAWING: Figure 1 |
