Key structure and portable computer using the same
US9911549B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 9, 2016 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Aug 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2225/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A key structure includes a supporting board, a base board, a pre-stressing force applying assembly, a key cap, a pivot assembly, an attractable element and a magnetic element. The pre-stressing force applying assembly is connected to the supporting board or the base board. When the magnetic element is under the first attractive position, the first end of the attractable element is attracted by the magnetic force and moved to the first attractive position, and the pre-stressing force applying assembly generates a first pre-stressing force; when the magnetic element is under the second attractive position, the second end of the attractable element is attracted by the magnetic force and moved to the second attractive position, and the pre-stressing force applying assembly generates a second pre-stressing force. The first pre-stressing force or the second pre-stressing force reduces the resistance during the sliding of the base board or the supporting board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.