| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric traction support device in a tunnel, installed in a narrow space in the tunnel and simultaneously adjusting the positions of a hanging wire and a trolley wire. SOLUTION: This electric traction support device 1 is provided with a support pipe 2 horizontally supported in the tunnel, a support metal fitting 3 attached to the support pipe to adjust an axial position, and a pull-off 4 attached to one end of the support metal fitting. The support metal fitting 3 is provide with a gripping part 6, a splice plate part 7, a hanging wire support pulley 8, an overhung part 9, and an arm part 10. The gripping part 6 grips the support pipe 2. The splice plate part 7 extends along the upper portion of the support pipe 2 from the gripping part 6. The overhung part 9 extends in a direction orthogonal to the support pipe 2 from the gripping part 6. The arm part 10 extends in parallel with the support pipe 2 from the overhung part 9. The pull-off 4 extends in parallel with the support pipe 2 from the end of the arm part 10 and grips the trolley wire T at its end. The hanging wire support pulley 8 is arranged above the end of the pull-off 4. COPYRIGHT: (C)2009,JPO&INPIT
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