| 摘要 |
PURPOSE:To enable micro phase regulation of two machines, by pressing an idler roller of a belt type stepless speed change gear incorporated in a machine at the low speed side against a speed change belt to add the tension upon detection of phase shift. CONSTITUTION:When machine A is running with speed slightly lower than machine B, for example, the phase shift is detected by a phase detecting means 23 to provide a signal to a control means 19a of machine A. It will provide tension on a speed change belt through a roller 18a. Consequently the speed change belt will slightly enlarge a movable disc of an inverted speed change V-pulley against a pressing spring to displace the contact face with said V-pulley, to bring the rotary speed of said pulley slightly higher while machine A is operated with slightly high speed to eliminate the phase shift against machine B. Upon elimination of the phase shift, the roller 18a is reset. |
