Rotary electronic component
US8440928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H19/115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a rotary electronic component, the rotor includes a flange with the first face on which grooves are formed radially and the second face. The plate spring with a ring shape in the top view, includes resilient arms and flat parts. The upper member has the bottom face covering the plate spring and the first face, and retains the flat part such that the flat part can be attached to or detached from the bottom face of the upper member while preventing the plate spring from rotating responsive to rotation of the rotor. A spring constant of the resilient arms and the shape of the flat part are set to achieve the state such that the resilient, arms bend and the flat part is partially released from the bottom face of the upper member when the resilient arms go over a position between adjacent grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.