| 摘要 |
PROBLEM TO BE SOLVED: To certainly prevent movement of a movable rail regardless of power feeding to a feeder of the movable rail which is not shut off. SOLUTION: A fixed stopper 17 not to allow movement of the movable rail 2B in a state of being connected to a fixed rail 2A as long as power feeding to an insulating trolley line 7 of the movable rail 2B is not shut off is provided in a carrier car system having a rail 2, the insulating trolley line 7 which is the feeder provided along the rail 2 and a carrier car 4 devised to receive power feeding from a collector ring 38 to slide on the insulating trolley line 7 and to travel along the rail 2 and on which a part in which the carrier car 4 can ride of the rail 2 is cut apart and made into the movable rail 2B and the movable rail 2B is made free to move in the lateral direction.
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