Rotary cover mechanism for portable electronic devices
US8078236B2 · kind B2 · utility
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1References
18Claims
0Family size
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Key dates
| Filing date | Aug 21, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jun 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/0233
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A rotary mechanism includes a base (10), a cover (30), a torsion spring (40) and a locking module (60). The cover is rotatably mounted to the base. Two ends of the torsion spring are fixed with the base and the cover respectively. The locking module limits the cover rotation relative to the base. When the cover overcomes the limitation of the locking module, the cover is automatically rotated relative to the base by the torsion spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.