| 摘要 |
PURPOSE:To enable the testing of switching ON or OFF depending on the same type of power source by arranging joints at several points in a power source duct so as to supply power ducts on both sides from the same type of power source while the power supply is cut off by running of a receiving trolley. CONSTITUTION:A feeder 14 from a receiving trolley 13 is connected to a power receiving object 15 provided on a base 16 running on a conveyor line 17. In this case, the length of a support wire of the feeder 14 can be adjusted extensionally or flexibly depending on the position of the power receiving object 15. When the power receiving object 15 runs, the power source 12 is turned ON or OFF each time the power receiving trolley 13 passes at a joint 11 of the power source duct 10. Therefore, if the power source duct 10 is made endless or to reciprocate between specified sections, a testing can be performed at a desired frequency of cutting OFF. In other words, this enables the testing for cutting OFF of a power source as desired only by controlling the running with the power receiving object 15 on the conveyor line 17. |
