Precision rotation mechanism

Details Precision rotation mechanism Precision rotation mechanism

1982-09-30

1984-06-19

Miller, J. D.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

044555016

ABSTRACT:
In a precision rotation mechanism, first and second sections of a rotatable disk member are alternately rotated. The first and second sections are coupled together with an elastic hinge which is provided in the center region of the disk. The first and second sections are also coupled with piezoelectric elements. After the first section is locked by a stopper, the piezoelectric element is elongated in a direction and the piezoelectric element is contracted in a direction, whereby the second section is rotated in a direction. Then, the second section is locked by the stopper and the first section is released from the stopper. In this state, one piezoelectric element is contracted and the other piezoelectric element is elongated so that the first section is rotated.

REFERENCES:
patent: 3377489 (1968-04-01), Yamato
patent: 3952215 (1976-04-01), Sakitani

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