Rotary switch
US7629549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H19/63
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary switch includes a holder base holding two metal contact plates and one metal connection plate, a rotary handle vertically pivotally coupled to a pivot shaft of the holder base and rotatable relative to the holder base between a first position where a bottom recess of a circular actuating member of the rotary handle receives a respective electric connection portion of each metal contact plate and the electric connection portion of the metal connection plate contacts the electric connection portions of the metal contact plates and a second position where a protrusion of the circular actuating member forces the electric connection portion of one metal contact plate away from the metal connection plate to produce an electrical signal, and a torsion spring sleeved on the rotary handle with its two ends respective connected to the actuating member and the holder base for returning the rotary handle automatically after each rotary motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.