Rotary medium driving apparatus
US6707640B2 · kind B2 · utility
6Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Jan 22, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In the rotary medium driving apparatus 1 equipped with the rotor 3, which can rotate freely around the shaft 18 fixed to the stator 4 by means of the ball bearings 16 and 17 and is provided with a certain diameter being capable of fitting a center hole of a rotary medium, the stator 4 is composed of the flat base 2 formed by a presswork and the stator core 15. The base 2 holds the shaft 18, which is inserted into the inner circumference surface 52 of the base 2, and has the ring shaped projection 5 for allocating the stator core 15 on the outer circumference surface 51 of the base 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.