| 摘要 |
PROBLEM TO BE SOLVED: To provide a bridge crane which achieves weight reduction and slides on the ground or a rail to move without using a travel device needing high manufacturing costs.SOLUTION: A bridge crane includes: a skid platform 31 disposed on a lower end surface 12 of an understructure 10; wire ropes 32, 33 which are connected with a lower end part of the understructure 10 and extend in a y1 direction and a y2 direction which are perpendicular to a moving direction of a trolley 23; and a winch 34 which pulls the wire ropes 32, 33. One of the wire ropes 32, 33 is selectively pulled by the winch 34. |
