Electro-mechanical actuator equipped with a mechanical brake of coil spring type
US8356700B2 · kind B2 · utility
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3References
3Claims
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Assignee
Inventor
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Feb 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18792
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An actuator having a frame which is fixed to an electric motor; a gear drive for transmitting motion from the motor to a drive shaft between two predetermined positions, and a brake consisting of a coil spring, having, when relaxed, an inside diameter that is smaller than the outside diameter of a support shaft that is fixed relative to the gear drive, and around which the spring is coiled, each of the two free ends of the spring being arranged in a respective slot, formed in the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.