| 摘要 |
PROBLEM TO BE SOLVED: To provide a carrier capable of consistently carrying a material to be carried even when a ceiling is located at a low level. SOLUTION: The carrier comprises a pair of carriages 10 with the longitudinal direction thereof arranged parallel to the horizontal direction, a pair of booms 20 which are mounted on the carriages in an expandable manner in the vertical direction, a pair of frames 30 fitted to the booms, a pair of first beams 40 stretched over the pair of frames, a pair of second beams 50 which are respectively fitted to the pair of first beams on the bottom surface side of the pair of first beams and slidable in the longitudinal direction of the first beams, and a plurality of cranes 60 which are fitted to the bottom surface side of the second beams and slidable in the longitudinal direction of the second beams. COPYRIGHT: (C)2005,JPO&NCIPI
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