Disc device with self-hold solenoid in eject/lock mechanism
US6826764B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Mar 12, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc device can easily install an eject/lock mechanism of self-hold solenoid type into a narrow space inside it, and by omitting some mechanisms of the structures, the cost can be lowered, and the malfunction frequency is therefore reduced. The disc device operates the eject/lock mechanism and opens a disc-loading unit by adding a pulse current to the self-hold solenoid. The eject/lock mechanism has a releasing spring, and when closing the disc-loading unit, a resilient force is generated by the releasing spring, and when opening the disc-loading unit, the resilient force is released. An activating end of the releasing spring is connected to a moveable plate of the self-hold solenoid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.