Dual shaft hinge device
US9464471B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2015 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/1681
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A dual shaft hinge device includes a first shaft including a first expansion portion; a second shaft including a second expansion portion; a pair of securing plates joined to the first shaft and the second shaft respectively and connected to a display device and a main body of an electronic device respectively; torque elements connected to the first shaft and the second shaft; a limiting mechanism connected to the first shaft and the second shaft; a first helical gear formed on the first expansion portion; a second helical gear formed on the second expansion portion; a base including two through holes for the first shaft and the second shaft extending therethrough, two extending plates separated by a distance, two transverse through holes formed on the extending plates and two depressed portions formed on a back side of the base; and a middle gear rotatably disposed between the extending plates and engaging the first helical gear and the second helical gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.