| 摘要 |
PROBLEM TO BE SOLVED: To eliminate wasteful extension by anchoring a trolley wire on a track, to reduce influence on scenery of neighboring environment and to save space. SOLUTION: An end part of trolley wire T is supported by a beam 2 arranged between steel pipe struts 1, 1 confronting with the track between them. The steel pipe strut 1 and the beam 2 are structured by cylindrical steel pipes. A first pulley 4 is supported at a corresponding position of the trolley wire T in the beam 2 in a manner rotatable around a vertical axis. A second pulley 5 is supported at inside of a connection part of the beam 2 of the steel pipe strut 1 in a manner rotatable around a horizontal axis. A wire rope 3 is connected with the trolley wire T via a yoke Y and an insulator I, hung over the first pulley 4, inserted through the beam 2 from a track direction and hung over the second pulley 5 and drawn into the steel pipe strut 1. A tension force adjusting means 6 is structured by suspending a weight 6a by the wire rope 3 in the steel pipe strut 1. COPYRIGHT: (C)2009,JPO&INPIT
|
