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    • 94. 发明专利
    • ON-BOARD GATE CRANE
    • JP2000318976A
    • 2000-11-21
    • JP12642099
    • 1999-05-06
    • NIPPON STEEL LOGISTICS CO LTD
    • TSUKUBA MIHARU
    • B63B27/12B66C19/00B66C23/53
    • PROBLEM TO BE SOLVED: To suppress the inclination of a hull during cargo handling operation of a heavy cargo by providing a counter weight for correcting the inclination of the hull by the load of a cargo suspended from a trolley, and making the counter weight rigid by a water tank. SOLUTION: This gate crane is traveled on rails 8 provided on both outboard, and it comprises a girder 3 provided so as to connect leg parts 2 on both side, and the girder 3 has a rail to horizontally travel a trolley 4. Further, this crane comprises a counter weight 13 for correcting the inclination of the hull by the load of a cargo suspended from the trolley 4, and the counter weight 13 is formed of a water tank, and horizontally traveled on the girder 3 including a cantilever 7. The counter weight 13 is moved in the reverse direction to the trolley 4 moving while suspending a cargo 1 relative to the central line of the vessel to correct the inclination of the hull.