Outer - rotor type spindle motor
US5336955A · kind A · utility
5Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1992 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Dec 18, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2370/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an outer-rotor type spindle motor: a front-end portion of a spindle (4) forming a stationary member passes through a central portion of a hub plate (7c) (onto which a disk (11) is loaded) of a rotor yoke (6) forming a rotating member; and, the front-end portion having been passed through the central portion of the hub plate (7a) of the rotor yoke (6) forms a head portion (4c) which is formed into a semispherical shape having been obliquely cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.