Vibration actuator
US5777424A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Jan 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibration actuator includes a vibration member constituted by two substantially semi-cylindrical elastic members, a relative moving member disposed on an end face of the vibration member, a first electro-mechanical converting element for generating a torsional vibration about the axis of the vibration member, a second electro-mechanical converting element for generating a longitudinal vibration in the axial direction of the vibration member, a pressing member for making the relative moving member and the vibration member press contact with each other, and a support member the outer circumferential portion of the vibration member to protrude therefrom in the radial direction of the vibration member, and which supports the vibration member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.