Vibration driven actuator

Details Vibration driven actuator Vibration driven actuator

1993-01-27

1994-10-25

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310325, H01L 4108

Patent

active

053592514

ABSTRACT:
A vibration driven motor or actuator includes a vibrating member for generating a vibration therein in response to an electrical signal applied thereto, and a contact member frictionally engaged with the vibrating member to be driven by the vibration. The contact member has a structure for causing sin and cos modes of the vibration generated in the contact member to have different natural frequencies when the contact member is driven by the vibration.

REFERENCES:
patent: 4562374 (1985-12-01), Sashida
patent: 4705980 (1987-11-01), Mishiro
patent: 4812697 (1989-03-01), Mishiro
patent: 5124611 (1992-06-01), Tamai et al.
patent: 5134333 (1992-07-01), Atsuta
patent: 5162692 (1992-11-01), Fujimura
patent: 5166572 (1992-11-01), Ohnishi

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