Scissor-leg structural key and its switch device, and a keyboard applying the key
US11114260B2 · kind B2 · utility
4Cited by
0References
28Claims
0Family size
Inventor
Key dates
| Filing date | Sep 1, 2017 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | May 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/9651
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch device, having a reset assistant part arranged at the second end of a male leg, and a ram; the reset assistant part being provided with a holding station, both sidewalls of which are each provided with a saddle, both sides of the ram being provided, with a cam matching with the saddle, the ram is hung from the saddle through two cams. Accordingly, a photoelectrical type switch of scissor-leg structure is realized, and the key is enabled to have an obvious stage sense and sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.