Photoelectric keyboard button
US10263618B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | May 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a photoelectric keyboard button, comprising: a circuit board (1) for providing a circuit connection, a mounting hole (11) being provided on the circuit board; an optocoupler assembly (2) provided on the circuit board and comprising a transmitting element (21) and a receiving element (22) provided on a side of the mounting hole; a button base (3), which is mounted into the mounting hole and is opened from the top to the bottom to form a guide basket (31), wherein a light passing groove (32) is provided on the guide basket for allowing the transmitting element and the receiving element to form a light passage; a pressing shaft (4), which is mounted into the guide basket and can slide up and down along the guide basket; and a hammer (5) vertically provided inside the guide basket, wherein the two ends thereof are respectively connected to the pressing shaft and the guide basket via springs (6, 7), a shifting block (51) connected to the pressing shaft is provided on a side surface of the hammer, and the hammer is provided with a light pathway switch (52). When being pressed down or bouncing up, the pressing shaft pushes the hammer to rotate horizontally and reciprocally vi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.