Disk drive actuator having a C-shaped bobbin with wings adjacent longitudinal coil legs
US8189298B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Mar 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5573
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A C-shaped bobbin includes a bobbin base member adjacent and attached to a first lateral leg of an actuator coil. A bobbin recess, adjacent the bobbin base member, separates first and second bobbin wings. The first and second bobbin wings define first and second wing lengths measured parallel to first and second longitudinal legs of the coil, respectively, and also define first and second wing widths measured normal to the first and second longitudinal legs, respectively. The bobbin recess defines a recess depth measured normal to the first lateral leg, and defines a recess width measured parallel to the first lateral leg. Each of the first and second wing lengths is less than the length of the longitudinal legs. The recess depth is at least half a base member width. The recess width is at least twice the first wing width and/or the second wing width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.