| 摘要 |
PURPOSE:To make removing or restoring work for a trolley wire easy by stretching a rail member in rectangular direction to the trolley wire erected in a tunnel for a rail road and the like and besides upper than the trolley wire for attaching the trolley wire movable along the rail member. CONSTITUTION:A rail member 2 is streched to the direction in rectangular to erected direction of a trolley wire 1 near a fixing member 12 at a place where mending work for the inside of a tunnel 5 is acted. Next, a hanging member 11 is taken off from the fixing member 12 and a gliding device 3 composed of rollers is attached on upper face of this hanging member 11. Next, the trolley wire 1 is connected to the gliding device 3 via the hanging member 11 and the trolley wire 1 is made to move along the rail member 2 through making the gliding device 3 glide to the same direction, and movement of the gliding device 3 is performed by winding up a wire 42 with a winder 4. And, it is intended to enlarge working space inside the tunnel by removing the trolley wire 1 to wall face side of the tunnel 5 in a case of mending work.
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