| 摘要 |
PURPOSE:To buffer the vibration of an electric-car line while maintain the proper height of said electric car line by providing a case into which a clevis fitting and a spring is inserted, between a lower post and connecting members for said electric-car line, in a pull-off fitting used for said electric-car line. CONSTITUTION:An arm support fitting 2 is horizontally rotatably installed on a lower post 1 fixed to the main pipe P of a movable bracket, an arm 3 is vertically rotatably installed on the lower end of the fitting 2, and an electric- car line T is held on the lower end of the arm 3 via an ear E. In this construction, a cylindrical case 4 is provided between the above mentioned fitting 2 and the arm 3. And, a clevis fitting 5 formed by welding both legs 5b to a disc 5a, and a spring 8 are inserted in the case 4. An indicating pin 6 is fixed to the disc 5a while both its ends are inserted into the long holes 4a of the case. Both the ends of the spring 8 are supported by the disk 5a and a spring receiving bolt 7 via spring backing plates 9, 9 respectively.
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