Piezo-electric actuator and stepping device using same

Details Piezo-electric actuator and stepping device using same Piezo-electric actuator and stepping device using same

1986-05-07

1987-12-22

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

047148551

ABSTRACT:
A piezo-electric actuator has two generally parallel arms spaced from each other and being connected at two longitudinally spaced positions by first and second supports. One support includes an electric distortion effect element and the other constitutes a hinge. Two such actuators may be joined by a second electric distortion effect element fixed at opposite ends to the faces of the support for two actuators constituting the hinge connection for the arms of said actuators. A disc rotor mounted for rotation about its axis may have its peripheral edge and passing through the gap between the ends of the arms remote from said first and second supports, which arm ends constitute clamping members for periodic clamping said rotor. Transfer of the disc, incrementally, results from elongation distortion of the second electric distortion effect element. The electric distortion effect elements are preferably piezo-electric elements.

REFERENCES:
patent: 3666975 (1972-05-01), Balamuth
patent: 4219755 (1980-08-01), O'Neill et al.
patent: 4547086 (1985-10-01), Matsumoto et al.

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