Vibration wave motor and drive device using the same
US11190112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/0065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibration wave motor includes a first holding member; a second holding member; a first regulating region; and a second regulating region, wherein a position of a first contact region of the first holding member, which comes into contact with the first regulating region, is different from a position of a second contact region of the second holding member, which comes into contact with the second regulating region, and wherein a position of the first regulating region is different from a position of the second regulating region in the relative movement direction so that, in the relative movement direction, a difference between a distance from the first contact region to the first regulating region and a distance from the second contact region to the second regulating region is shorter than a difference between the position of the first contact region and the position of the second contact region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.