Transmission mechanism for dual-shaft hinge
US9127490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Nov 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/1681
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transmission mechanism including a first shaft and a second shaft extending rotatably through a first positioning plate and a second positioning plate. The second positioning plate is spaced apart from the first positioning plate. A first gear is mounted on the first shaft between the first positioning plate and the second positioning plate, and has a first helical tooth portion. A second gear is mounted on the second shaft between the first positioning plate and the second positioning plate, and has a second helical tooth portion having a same tooth profile and helix angle as the first helical tooth portion. A middle gear is located between the first gear and the second gear and has a transmitting helical tooth portion engaging the first helical tooth portion and the second helical tooth portion. The middle gear rotates about an axis perpendicular with the first shaft and the second shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.