| 摘要 |
PURPOSE:To suppress occurrence of oscillation and dissonant noise, by horizontally and vertically locking a trolley wire with respect to its sectional shape while movably supporting the wire in its axial direction further filling rubber and upper and lower liners to a base plate. CONSTITUTION:A lower clamp 5 holds weight of a trolley wire 1, while an upper clamp 6 prevents trosion and vertical oscillation of the trolley wire 1 caused at sliding of a pantrograph. Further the trolley wire is surely supported between curved sections of a track by a groove 5b of the lower clamp 5 and the upper clamp 6. A base plate 2, fixed to a structure through an insulator G of porcelain or the like, is filled with synthetic resin rubber 9, and its elastic force holds the trolley wire 1 with approximately pressing force by the groove 5b and a corresponding surface of the upper clamp 6, to prevent oscillation and dissonant noise, caused when the pantograph is slided, cooperatively with upper and lower liners 3, 4 of synthetic resin. Further the trolley wire 1 can be easily moved in its axial direction by suitable pressing force and high smoothness of the liners 3, 4. |
