| 摘要 |
PROBLEM TO BE SOLVED: To provide a power-feeding relay device for a crane, in which attachment/detachment work of a cable to a relay connector is easy and an electricity-feeding pit can be miniaturized. SOLUTION: The electricity-feeding relay device 5 for feeding power source to the self-traveling type crane by the cable includes: the relay connector 25 for connecting a crane side cable 22 having one end side rolled-up on a rolling-up drum of the crane and the other end side arranged in a guide groove 21 formed along a traveling route of the crane to a power source side cable 23 from a power source side; and a movement restriction drum 31 for restricting the movement of a cable end by winding an end side close to the relay connector 25, i.e., the other end side of the crane side cable 22. Further, the relay connector 25 is arranged on the ground, the movement restriction drum 31 is arranged in a storage pit 27 formed at underground and communicated with the guide groove 21, and a rocking lever body 32 for lifting the movement restriction drum 31 is provided. COPYRIGHT: (C)2011,JPO&INPIT |
