ACTUATION SYSTEM FOR PERSONAL CARE APPLIANCE USING LINEAR ACTUATORS

摘要

The personal care appliance drive system includes a pair of linear actuators (20, 22) capable of operating both in an opposing phase mode or in a parallel (in phase) mode. The system includes a motion converter assembly (64) which converts the opposing phase action of the two linear actuators (20, 22) into a rotational action of an output drive shaft (14) and converts in phase action to a translation motion of the output shaft or to drive another function of the appliance, such as a pump. The motion converter (64), operating simultaneously in an opposing phase mode and in phase modes, produces a complex motion of the workpiece. FIG. 1