Keyboard device and electronic apparatus
US10460891B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Sep 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/074
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A keyboard device has a base sheet, a membrane sheet disposed on the upper surface of the base sheet, a cover sheet disposed on the upper surface of the membrane sheet and supporting the membrane sheet between the cover sheet and the base sheet in a state of being movable in the in-plane direction, connection members connecting the base sheet and the cover sheet, a plurality of key tops vertically movably supported by a guide mechanism provided on the upper surface side of the cover sheet and bringing a movable contact and a fixed contact which are contacts of the membrane sheet into contact with each other or separating the contacts from each other by being depressed, and a frame member partitioning the key tops adjacent to each other by being depressed and having a lower surface to which the upper surface of the cover sheet is bonded and fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.