Key structure with scissors-type connecting member
US8581127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Feb 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/064
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key structure includes a keycap, a scissors-type connecting element, a membrane module, a light-emitting element and a base plate. The light-emitting element is used for emitting light beams. The keycap has a protrusion structure for blocking the light beams and preventing the light beams from leaking out through the gap between said keycap and said base plate. The base plate has a slot corresponding to the protrusion structure. When the keycap is depressed, the membrane module is pressed by the protrusion structure to be subject to deformation, so that a deformed part of the membrane module is inserted into the slot of the base plate. In such way, the hand feel of depressing the keycap is not adversely affected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.