Vibration driven motor apparatus

Details Vibration driven motor apparatus Vibration driven motor apparatus

1990-11-08

1993-01-19

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

051809419

ABSTRACT:
A vibration wave driven apparatus disclosed in this specification frictionally drives a first member having mounted thereon an elastic member in which a travelling vibration wave is formed and a second member provided with a rail-like stator which is in pressure contact with the elastic member, along the lengthwise direction of the rail-like stator, by the travelling vibration wave formed in the elastic member. Further, the apparatus has a guide member for restraining the degree of freedom in a direction orthogonal to the lengthwise direction, the guide member being comprised of a roller and a guide portion against which the roller bears and which extends along the direction of relative movement.

REFERENCES:
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patent: 4634916 (1987-01-01), Okada et al.
patent: 4672256 (1987-06-01), Okuno et al.
patent: 4882500 (1989-11-01), Iijima
patent: 4937488 (1990-06-01), Fujie et al.
patent: 4945275 (1990-07-01), Honda
patent: 4959579 (1990-09-01), Kuwabara et al.
patent: 4978882 (1990-12-01), Kitani
patent: 5013958 (1991-05-01), Ohnishi et al.
patent: 5036245 (1991-07-01), Ohnishi et al.

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