Magneto-optical disk loading device

Details Magneto-optical disk loading device Magneto-optical disk loading device

1998-02-27

2000-12-05

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

G11B 1100

Patent

active

06157595&

ABSTRACT:
In an optical disk device of the present invention, a spindle motor is separated into (1) a first motor unit composed of a bearing member, a bearing support for supporting the bearing member, and a turn table fixed to a rotor magnet and (2) a second motor unit provided with a first stator coil. During a cartridge loading operation, after the first motor unit is moved towards an optical disk, the second motor unit is slidably moved to a space created by the movement of the first motor unit so as to be rotatably driven as a spindle motor, thus realizing a thinner spindle motor.

REFERENCES:
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patent: 5455809 (1995-10-01), Naraoka et al.
patent: 5587973 (1996-12-01), Kanazawa et al.
patent: 5625607 (1997-04-01), Chaya
patent: 5677897 (1997-10-01), Anada et al.
patent: 5905696 (1999-05-01), Kanazawa et al.
"Ultra-Thin Brushless Motor for Headphone Stereo Cassette Players" Makoto Hasegawa, et al. National Technical Report vol. 37, No. 2 Apr. 1991, pp. 189 to 195.

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