Angle positioning device of rotation shaft and foldable electronic device having the same
US8621716B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2009 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Nov 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/1681
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An angle positioning device of a rotation shaft includes a first pivot portion and a second pivot portion. The first pivot portion includes a first face having a positioning portion, a first path and a second path divided by the positioning portion. The first pivot portion includes a second face having a returning portion, a third path and a fourth path divided by the returning portion. The second pivot portion can move along the first path, the second path, the third path, and the fourth path. When the second pivot portion moves from the first path to the second path, the pivot angle is increased. When the second pivot portion moves from the third path to the fourth path, the pivot angle is decreased. When the pivot portion moves from the first path to the positioning portion, the pivot angle cannot be decreased. The second pivot portion can move from the third path through the returning portion and back to the first path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.