Recording disk drive capable of suppressing vibration of flexible printed circuit board
US7495866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2004 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Mar 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer are overlaid on the surface of the flexible printed circuit board. A clip clips all the fixing member, the flexible printed circuit board, the viscoelastic layer and the protecting layer together. When a head slider is positioned, the head actuator changes its attitude relative to a recording disk. The inertial force based on the rotation causes the first flexible printed circuit board to vibrate when the actuator block stops rotating. The viscoelastic layer serves to absorb this residual vibration of the first flexible printed circuit board. Vibration of the flexible printed circuit board can be suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.