| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cable relay carriage with a pole capable of preventing breakage of a cable by preventing interference of a track of a vehicle and the cable, and a system for supplying power to a motor-driven working machine. <P>SOLUTION: A relay carriage 30 comprises: a cable drum 34 holding a cable 70 for transmitting power; a cable support pole 40 for supporting the cable 70 held by the cable drum 34 at a position higher than height of a vehicle traveling on a track crossing with a position, at which the cable 70 is arranged; and a traveling device 50 coupled with the cable drum 34 and the cable support pole 40, and performing a traveling operation so that the cable drum 34 and the cable support pole 40 can be moved. Also, a system 20 for supplying power to a shovel 1 that is a motor-driven working machine comprises: the relay carriage 30; and the shovel 1 that is a motor-driven working machine driven by the power supplied by the cable 70 relayed by the relay carriage 30. <P>COPYRIGHT: (C)2013,JPO&INPIT |
