| 摘要 |
PURPOSE:To obtain an efficient dust-proof trolley line by covering all except the sliding face of a conductor with an insulation sheath together with forming the end parts of an elastic insulation sheath provided below the both sides of the sliding face of the conductor respectively toward inner sides for making opening and closing possible. CONSTITUTION:An insulated trolley line A fitted on a construction material C by a hanger B is constituted with its sliding face 12 at the lower side of a conductor 11 only exposed and the whole length of the conductor 11 buried in an insulation sheath 13 such as of a polyvinyl chloride. Downward from both sides of the sliding face 12 of the conductor 11, elastic insulation sheathes 14 and 14 are provided as extentions of the insulation sheathes 14 and 14 are provided as extentions of the insulated sheath 13, and the top part 15 and 15 of them are respectively bent toward inside to close the opening. To collect current from the said trolley line A, a collecting element 17 provided on a collecting element fixing base 16 is pushed upward from top parts 15 of the trolley line A, and brought in touch with the conductor 11 while expanding a space between top parts 15 and 15. |
