Vibration type driving apparatus

Details Vibration type driving apparatus Vibration type driving apparatus

2006-04-25

2006-04-25

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323030, C310S323040, C310S323080

Reexamination Certificate

active

07034438

ABSTRACT:
A vibration type driving apparatus, which is capable of increase of output torque and rotational speed without increasing the size of a vibration body, is described. The apparatus comprises a vibration body which generates vibration by supplying a driving signal to an electro-mechanical energy converting element and a contact body which contacts this vibration body and is moved by vibration received from the vibration body. The vibration body comprises a base portion having the electro-mechanical energy converting element and a plurality of vibration amplification portions for amplifying vibration generated at this base portion. Neighboring vibration amplification portions of the plurality of vibration amplification portions are connected at a position different from a connecting position of each vibration amplification portion with the base portion.

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patent: 60-174078 (1985-09-01), None
patent: 2002-142472 (2002-05-01), None

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