Driving device

Details Driving device Driving device

2007-01-09

2007-01-09

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S316020, C310S317000

Reexamination Certificate

active

10980511

ABSTRACT:
In a drive apparatus having a vibration-generator including a plurality of electromechanical conversion elements, a plurality of weights located between each of the electromechanical conversion elements, and a rod fixed to one end of an electromechanical conversion element, a mass and a spring constant of each component included in the vibration-generator are determined, so that a relationship of integral multiple is satisfied. Thus, highly efficient driving with taking advantage of the resonance frequencies can be realized, and thus the energy consumption can be saved.

REFERENCES:
patent: 6232697 (2001-05-01), Mizumoto
patent: 6512321 (2003-01-01), Yoshida et al.
patent: 6528926 (2003-03-01), Okamoto et al.
patent: 6717329 (2004-04-01), Yoshida et al.
patent: 6727635 (2004-04-01), Okamoto et al.
patent: 6803699 (2004-10-01), Yuasa et al.
patent: 11-41953 (1999-02-01), None
patent: 11-98865 (1999-04-01), None

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