| 摘要 |
PROBLEM TO BE SOLVED: To provide an overhead travelling crane capable of lifting and lowering attachment in accordance with distribution of bulk piling-up height when a trolley runs laterally and a girder runs. SOLUTION: This overhead travelling crane is constituted in such a way that a controller 18 measures piling-up height of refuse 6 at a floor landing point of a bucket 7 based on signals 20, 21, 22 from rotary encoders 9, 11, 13 and a signal 19 from a weight measuring device 17, infers piling-up height of refuse 6 at a diffusion point to obtain distribution of piling-up height of refuse 6 in a refuse storage pit 1, and lifts and lowers the bucket 7 in accordance with distribution of piling-up of refuse 6 when the trolley 4 runs laterally and the girder 3 runs to avoid interference of the refuse 6 with the bucket 7. COPYRIGHT: (C)2005,JPO&NCIPI
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