Negative pressure control member for stabilizing magnetic disk c

Dynamic magnetic information storage or retrieval – Head – Head accessory

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360129, G11B 1560

Patent

active

051385090

ABSTRACT:
A magnetic disk control member having a flat opposing surface opposing a rotating magnetic disk that defines a free rotary surface plane and provided protrudingly with a magnetic head, a protrusion for generating a negative pressure disposed at the upstream side with respect to the rotational direction of the magnetic disk, and an inclined surface disposed at an end of the opposing surface at the downstream side with respect to the rotational direction of the magnetic disk and inclined so as to gradually become closer to the free rotary surface plane towards the downstream side with respect to the rotational direction of the magnetic disk. With the magnetic disk control member, the magnetic disk is curved by the negative pressure generated at the downstream side of the protrusion to come in sliding contact with the magnetic head, and gently pushed back by the inclined surface to the free rotary surface plane side to be straightened, thereby eliminating flapping vibrations due to excessive deformation of the magnetic disk and achieving a stable and good head contact while suppressing deformation of the magnetic disk to a minimum.

REFERENCES:
patent: 4794482 (1988-12-01), Horio et al.
patent: 4814922 (1989-03-01), Osanai
patent: 4833556 (1989-05-01), Kasarko et al.

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