| 摘要 |
PURPOSE:To collect an electric current with no interference even in a branch part by bringing current collectors of a trolley, provided in runners protruded in both end parts of a panel, into contact with a conductor of a trolley duct provided along an upper rail. CONSTITUTION:Runners 3, protruded respectively upward in both end parts of a panel 1, are runnably mounted on an upper rail 13, and electrically driven running wheels 2, 2 are provided in the runners 3. Next, a trolley duct 15 is arranged along the upper rail 13, trolleys 18, having current collectors 22, are provided in the runners 3 in both the end parts of the panel 1 and current collectors 22 are respectively brought into contact with a conductor A of the trolley duct 15 to collect an electric current. In a branch part of the upper rail 13, even when one of the runners 3 is positioned in a disconnected part of the conductor A, the other runner 3 is brought into contact with the conductor, so that the current is collected with no trouble. |
