Vibration wave motor

Details Vibration wave motor Vibration wave motor

1987-04-30

1988-08-09

Adams, Russell E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310323, 310328, G03B 300, H01L 4108

Patent

active

047631481

ABSTRACT:
A vibration wave motor has a circular vibration member for generating a travelling vibration wave in response to application of a periodic voltage to phase-differentially arranged or polarized electro-mechanical energy transducers. A movable member is frictionally driven by the travelling vibration wave. A ring-shaped circular vibration absorption member is provided for absorbing vibration of the vibration member. The vibration absorption member has an outer diameter smaller than an outer diameter of the vibration member so as not to absorb energy at the outer circumference of the vibration member.

REFERENCES:
patent: 4484099 (1984-11-01), Kawai et al.
patent: 4495432 (1985-01-01), Katsuma et al.
patent: 4504760 (1985-03-01), Yamamoto et al.
patent: 4513219 (1985-04-01), Katsuma et al.
patent: 4560263 (1985-12-01), Katsuma et al.
patent: 4580073 (1986-04-01), Okumura et al.
patent: 4634915 (1987-01-01), Mukohjima et al.
patent: 4645964 (1987-02-01), Hiramatsu et al.
patent: 4649311 (1987-03-01), Mukohjima
patent: 4658172 (1987-04-01), Izukawa

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