Lever actuator comprising a longitudinal-effect electroexpansive

Details Lever actuator comprising a longitudinal-effect electroexpansive Lever actuator comprising a longitudinal-effect electroexpansive

1982-05-24

1984-03-06

Miller, J. D.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

73517AV, 73DIG1, 310323, 310329, H01V 700

Patent

active

044356668

ABSTRACT:
A transducer (51) extended by an electroexpansive longitudinal effect, actuates a lever (77) through a bendable plate (56). Preferably, the plate actuates a first arm (53) having an end which provides the fulcrum. Another bendable plate (79) actuates a second arm (76) having an end which exterts the power to the lever. The plates are symmetrically disposed on both sides of the transducer axis. The lever is differentially actuated by the arms. When such lever actuators are combined into an impact printer head, a guide for printing elements carried by the respective levers are preferably used in preventing the levers from excessively excursing.

REFERENCES:
patent: 3649857 (1972-03-01), Knappe
patent: 4104920 (1978-08-01), Albert et al.
patent: 4349183 (1982-09-01), Wirt et al.

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