| 摘要 |
PURPOSE:To achieve the optimal operating state of power cylinder continuously under any travelling state, by controlling the pump drive motor on the basis of control chart matching with preset travelling condition. CONSTITUTION:Upon start of handle operation, first rotor 12 integral with a steering shaft 11 and teminal 17 will rotate simultaneously. Under clockwise rotation, the terminal 17 will contact with a contact 21 of second rotor 19 to turn on the first switch 25. Upon further rotation of steering shaft 11, the terminal 17 will cause rotation of second rotor 19 against the resiliency of a compressed coil spring 34 to contact the terminal 24 with the contact 22 of third rotor 29 thus to turn on second switch 26. Upon further rotation, the terminal 24 will drive the thrid rotor 29 against the frictional force of bolt 38 while turning on the first and second switches. |
