Vibration wave driving apparatus

Details Vibration wave driving apparatus Vibration wave driving apparatus

2006-03-17

2008-10-21

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07439653

ABSTRACT:
This invention provides a vibration wave driving apparatus which makes it possible to reduce the localized abrasion of a contact member, and reduce the deterioration of performance due to long-term driving. This vibration wave driving apparatus has a contact member which is provided with fixed portions fixed to the lengthwise opposite end portions of the vibration expanding portion of the vibration member, and a connecting portion integrally connecting the two fixed portions together and having opposite ends fixed beam structure divided into a plurality.

REFERENCES:
patent: 5099167 (1992-03-01), Kimura et al.
patent: 5646469 (1997-07-01), Tsukimoto et al.
patent: 7245058 (2007-07-01), Fujimoto et al.
patent: 8-103088 (1996-04-01), None
patent: 2001-145376 (2001-05-01), None
patent: 2002-315364 (2002-10-01), None

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