| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an overhead line vibration preventing device having a mechanism for preventing drop of a weight irrespective of fracture of a suppression line of a double torsional damper portion. <P>SOLUTION: A double torsional damper portion 20 includes: a suppression line 22; weights 24 fixed to both ends of the suppression line 22; and a wire grip clamp 27 fixed to the center of the suppression line 22. The line grip clamp 27 includes a clamp portion 28 gripping an overhead line. A weight reception portion 10 includes a weight tray 12 and a weight tray clamp 15. The double torsional damper portion 20 is installed on an overhead line 30 by the clamp portion 28, and the weight reception portions 10 are installed in positions of the weights 24 fixed to both ends of the suppression line 22 of the installed double torsional damper portion 20 by the weight tray clamp 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
