Protective magnet shield for a spindle motor

Details Protective magnet shield for a spindle motor Protective magnet shield for a spindle motor

1998-03-30

2000-01-25

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9908, 310156, G11B 1702, H02K 2300

Patent

active

060184388

ABSTRACT:
A simplified spindle motor assembly is disclosed, in which the need for scrap or rework of the motor as it is being assembled is reduced, and a protective shield for the magnet protects the magnet from bumping into the sharp edges of the stator when the sleeve of the motor which supports the magnet is being assembled into the base of the disc drive. In addition, the simplified device for aligning the magnet axially along the sleeve properly aligns the magnet axially with the stator which is separately supported from the base when the sleeve and shaft are assembled into the base.

REFERENCES:
patent: 4564777 (1986-01-01), Senoo et al.
patent: 4639625 (1987-01-01), Abukawa et al.
patent: 4707630 (1987-11-01), Tomite et al.
patent: 5590003 (1996-12-01), Dunfield et al.
patent: 5783890 (1998-07-01), Mulgrave
patent: 5877916 (1999-03-01), Papst

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