PURPOSE: To reduce the capacity of a battery loaded by feeding power required for operating a working machine loaded to the unmanned carriage car from the outside at the predetermined position of stoppage work.
CONSTITUTION: When the unmanned carriage car is stopped at the predetermined work position, the draw-in-and-out mechanism of a feed device 4 at the movable side is operated, and a detecting rod 41 opens by pushing a plug socket cover 53 while movable contactors 42 are advanced and contacted with a fixed contactor 51. When the detecting rod 41 is contacted with a wall surface, the movement is stopped. A power supply switch attached to the unmanned carriage car is turned ON, and power required for operating the working machine loaded to the unmanned carriage car is supplied. Accordingly, the capacity of the battery loaded can be reduced.
KAMEI SHIGEKI
SEKIHARA KIYOUICHI
| JPS52116708A | 1977-09-30 |