Slim-type keyboard
US9852854B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2016 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Sep 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/074
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A slim-type keyboard includes a first flexible layer, a pressed frame and a circuit board assembly. The first flexible layer includes plural pressed regions. The pressed frame includes plural cantilever strips. The circuit board assembly includes plural dome switches. The plural cantilever strips are covered by the first flexible layer. The pressed regions are aligned with the cantilever strips and the dome switches, respectively. When one of the pressed regions is pressed, the cantilever strip is pushed down to trigger the corresponding dome switch. Each cantilever strip includes a U-shaped groove and a suspension end. The U-shaped groove opens to the suspension end. Consequently, the tactile feel of pressing the cantilever strip is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.