Vibration wave driving apparatus
US7439653B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2006 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Apr 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/0065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.