| 摘要 |
PURPOSE:To improve stop accuracy, by connecting a flip flop circuit, in which a down or up signal is operated as a reset signal to a control circuit and a car height up or down valve circuit. CONSTITUTION:A flip flop circuit 16 operated by a down control signal or up control signal as a reset signal is connected to a circuit connecting an up control circuit of car height to a driver circuit 17 of a lifting valve 5 or a circuit connecting a down control circuit to a driver circuit 18 of a lowering valve 11, at adjustment of the car height after the car height is once adjusted to above or below a preset reference level, the car height is adjusted again to the preset reference level, and adjusting accuracy of the car height is improved. |
