Spindle motor and disk driving apparatus using the same

Details Spindle motor and disk driving apparatus using the same Spindle motor and disk driving apparatus using the same

1993-07-30

1995-08-29

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310254, H02K 714, H02K 112

Patent

active

054463254

ABSTRACT:
Disclosed are a spindle motor and a disk driving apparatus using the same and, in particular, a disk driving apparatus loaded with a disk cartridge containing an information recording disk. The spindle motor includes a rotation table adapted rotate integrally with a rotating shaft, a driving magnet attached to a rotor, and a stator yoke to which driving coils are attached and which has a bearing for supporting the rotating shaft, the rotation table and the rotor being formed as separate members, the rotor having a fitting hole into which the rotation table is to be fitted from below, the rotating shaft of the rotation table being inserted into the bearing of the stator yoke, the rotor being mounted on the rotation table, the rotor being attracted toward the stator yoke by the magnetic force of the driving magnet and integrally combined with the rotation table.

REFERENCES:
patent: 4733115 (1988-03-01), Barone et al.
patent: 5038240 (1991-08-01), Isomura
patent: 5146144 (1992-09-01), Lee
patent: 5195002 (1993-03-01), Sakurai
patent: 5245235 (1993-09-01), Nagai et al.
patent: 5252871 (1993-10-01), Inoue

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