| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of the cargo handling work of a container crane having a container relay board. SOLUTION: In a container crane 1 for loading and unloading a container 21 to a container ship 22, a movable sea side first traverser 17 and a movable sea side second traverser 26 are provided on a crane girder 8, a movable first trolley 9 and a movable second trolley 27 for receiving and transferring the container 21 between the container ship 22 and the traverses 17, 26 are provided on the crane girder 8 at a sea side, a movable land-side trolley 12 for receiving and transferring the container 21 between the traversers 17, 26 and a land equipment 19 is mounted on the crane girder 8 at a land side, and the rails respectively for moving the first traverser 17 and the second traverser 26 are separately laid on the crane girder 8. On this occasion, the first traverser 17 and the second traverser 26 can be passed by each other in a state that the containers 21 are loaded thereon.
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