Drive device

Details Drive device Drive device

2007-03-30

2010-10-05

Budd, Mark (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S309000, C310S328000

Reexamination Certificate

active

07808152

ABSTRACT:
A driving apparatus is provided with: a first base portion; a first stage portion; a first elastic portion which has elasticity to displace the first stage portion in one direction (X axis); a second stage portion which is disposed on the first stage portion and on which a driven object is mounted; a second elastic portion which has elasticity to displace the second stage portion in other direction (Y axis); a first applying device for applying an excitation force for displacing the second stage portion such that the second stage portion is resonated in the other direction at a resonance frequency determined by the second stage portion and the second elastic portion; and a second applying device for applying a driving force for displacing, in a stepwise manner or in a continuous manner, the first stage portion in the one direction.

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International Search Report, PCT/JP2007/057042, Jul. 3, 2007.
Hasebe et al., “Development of Wide Lateral Stroke Electro-Magnetic Actuator Dviern by Low Voltage”, Technical Meeting on Sensors and Micromachines 2006, MSS-06-12.

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