Air flow actuated latch for actuator arm in a disc drive
US6031690A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An effective aerodynamic transducer latch is disclosed in which the latch mechanism is within the confines of a miniaturized disc drive structure, the latch being capable of reliably holding the actuator arm from uncontrolled movement away from a landing zone position in response to significant linear shocks exceeding 300 Gs, rotational shocks exceeding 15,000 radians/s.sup.2, and combines a low cost, low-mass non-electrically powered latch mechanism cooperating with a disc drive actuator arm such that while the mass of the latch mechanism is significantly less than the mass of the actuator arm, the latch mechanism is capable of effectively restraining the arm against movement. Further, the design of an aerodynamically effective latch mechanism is such that it fits very closely adjacent to the voice coil motor such that a minimum amount of housing area needs to be devoted to the latch mechanism, the latch mechanism which when its restraining arm is latched against the actuator arm, provides the restraining force in a direction substantially parallel to the direction in which the actuator arm will attempt to move so that a maximum restraining force can be applied to the actuator arm…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.