Keyboard device and manufacturing method thereof
US10401970B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2018 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jul 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keyboard device and a manufacturing method of the keyboard device are provided. The keyboard device includes a base plate, a membrane circuit board and a key. A connecting structure with an upper connecting part is protruded from the base plate. The membrane circuit board includes a first film layer with an extension part. A clearance space is formed between the extension part and the base plate. An end part of the stabilizer bar of the keycap is clamped between the upper connecting part and the extension part. While the stabilizer bar is moved, the end part of the stabilizer bar is slid between the upper connecting part and the extension part. Moreover, the end part of the stabilizer bar and the extension part are interfered with each other and sunken downwardly into the clearance space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.