Device for rotating a toothed wheel
US11428298B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Jun 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B11/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for rotating a toothed wheel, including a linear piezoelectric motor including: a passive element having an elongated shape, a piezoelectric actuator capable of axially moving the passive element in a bidirectional manner, a transmission member fastened to the passive element, meshing with a toothing of the wheel in such a way as to rotate the wheel by one tooth in a first direction of rotation when the passive element is moved axially in a first direction of movement, a jumper mobile between two end positions, including a lowered position in which it blocks a rotation of the wheel in a second direction of rotation opposite to the first direction of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.