| 摘要 |
A crane is provided to allow a path of a line carriage to form a smaller gap at a connection point between a fixed part and a movable part and to reduce collision caused by the gap. A crane comprises a beam(2) formed with two paths(4,5) for a line carriage(9). The two paths(4,5) are positively engaged with each other. The path(4) is connected to the crane(1) or the beam(2) as a fixed path. The movable path(5) is connected to the crane(1) or the beam(2) as a movable path. The movable path is suspended by a groove-spring connection part. The groove-spring connection part supports the line carriage(9). A spring is located between the movable path and the beam(2). The spring comprises a spiral spring, a steel spring, a plastic spring or a rubber spring. A hydraulic mechanism is located between the movable path(5) and the beam(2).
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