Spindle motor and its manufacturing method
US6181671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2009
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To improve the accuracy in holding a disc and to reduce unwanted vibration occurring when the disc is rotated at a high speed (the whirling of a turn table and a rotor), a spindle motor for rotating a disc comprises a turn table (3) that holds a disc (1) to rotate it, a rotor (4) that applies rotational driving force to the turn table, and a rotating shaft (5) provided on the rotation axis of the rotor, wherein the rotating shaft is fixed on the rotation axis of the turn table using a first support member, and the turn table and the rotor are supported by a second support member consisting of a filler filled in a predetermined gap (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.