| 摘要 |
A positioning device comprising a solenoid, said solenoid having a plunger slidable upon energization of the solenoid, a solenoid stop associated with said solenoid, a stem operatively connected to said plunger and extending through the movable stop to the exterior, an actuator connected to said solenoid stop and operable to move said stop to selected positions, such that when the solenoid is energized, the plunger is moved to engage the stop and move the stem to a predetermined position, the extent of movement being determined by actuation of the actuator to move the stop in predetermined positions.
|
