Vibration driven motor

Details Vibration driven motor Vibration driven motor

1997-10-27

1999-06-29

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310321, 310323, 310328, H02N 200, H01L 4108

Patent

active

059172681

ABSTRACT:
A vibration driven motor constituted by an elastic member and an electro-mechanical converting element connected to the elastic member is characterized in that the driving direction is changed by changing the frequency of a vibration produced by the electro-mechanical converting element. In this case, the driving direction preferably includes two orthogonal directions.

REFERENCES:
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patent: 3873947 (1975-03-01), Johnson
patent: 4727278 (1988-02-01), Staufenberg et al.
patent: 4928030 (1990-05-01), Culp
patent: 5073739 (1991-12-01), Iijima
patent: 5418418 (1995-05-01), Hirano et al.
patent: 5424596 (1995-06-01), Mendenhall et al.
patent: 5448127 (1995-09-01), Kanazawa
patent: 5453653 (1995-09-01), Zumeris
Tomikawa et al, "Piezoelectric Linear Motors For Application to Driving a Light Pick-Up Element," Lecture Papers of 5th Electromagnetic Force Associated Dynamics Symposium, Jun. 9, 1993, pp. 393-398.

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