| 摘要 |
PROBLEM TO BE SOLVED: To secure safety of travel of a crawler crane with a suspended load on an inclined ground. SOLUTION: A super structure is rotatably mounted on a base carrier, a jib is hoistingly provided at a front part of the super structure, and a wire rope fed from a winch provided on the super structure is wound around a sheave provided on an upper end of the jib to suspend a hook in this crawler crane. The crawler crane is provided with a moment limiter 17 to monitor a load suspending state of the crawler crane, and conduct prescribed safety control based on the result of monitoring. It is provided with a body inclination sensor 26 to detect inclination of a crawler crane body, and output means (a travel stop warning device 27, a travel stopping device 28, and a travel speed control device 29) to reduce rated performance of the moment limiter 17 in accordance with an inclination angle based on detection of the body inclination sensor 26, and to make prescribed output when an overload occurs. COPYRIGHT: (C)2004,JPO
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