Optical head moving section of optical disk drive

Details Optical head moving section of optical disk drive Optical head moving section of optical disk drive

1995-09-05

1997-03-11

Tupper, Robert S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

G11B 1700

Patent

active

056108990

ABSTRACT:
An optical disk drive includes a spindle motor fixed on a base, a moving section carrying an optical head, a plurality of rolling members carried by the moving section, a pair of rails fixed on the base and carrying the rolling members for moving the moving section to any target position of a disk medium. A ferromagnetic member is fixed on the base and a permanent magnet fixed to the moving section faces the ferromagnetic member with a predetermined space being provided with respect to the ferromagnetic member. With this arrangement, the disk drive requires only five rolling member. Due to a magnetic attracting force produced between the ferromagnetic member and the permanent magnet, the moving section and the rail members are under appropriate pressure contact, which makes it possible to provide a simple, compact and low cost pressure contact mechanism.

REFERENCES:
patent: 4613962 (1986-09-01), Inoue et al.
patent: 4823336 (1989-04-01), Inada et al.
patent: 5016238 (1991-05-01), Shtipelman et al.
patent: 5046062 (1991-09-01), Yamashita

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