| 摘要 |
PROBLEM TO BE SOLVED: To provide a working unit movable in the longitudinal, vertical and lateral directions of a marine vessel with simple operation. SOLUTION: In this working unit 20 moving on a guide rail 12 provided at a dock wall 10, a side expansion mechanism 42 is provided at a working stage part 40 elevated along a tower-type post 30, and a workbench 50 is installed at the tip of the side expansion mechanism 42. The workbench 50 has a horizontally turning mechanism and is movable parallel with a three- dimensional curved surface. COPYRIGHT: (C)2003,JPO
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