| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crane, the energy efficiency of which is improved by lessening the weight of a spreader and in which the exchange work of the spreader can be done by one crane operator and the operation stability of a flipper is enhanced. <P>SOLUTION: The crane, as an apparatus for loading and unloading a container 40 for marine transportation, has: a head block 2 suspended from a trolley; and the spreader 1 connected to the lower part of the head block 2. The spreader 1 has: a plurality of guide members 3 for guiding the spreader 1 onto the container 40; operation wires 4 connected respectively to the plurality of guide members 3; and operating members 12 arranged respectively on the operation wires 4. The head block 2 has: a plurality of connection parts 31 to be connected respectively to the operating members 12 to transmit motive power to the respective operating members 12; and a plurality of drive units 32 for operating the respective connection parts 31. <P>COPYRIGHT: (C)2012,JPO&INPIT |
