Magnetic disc device for lubricating a rotating disc

Details Magnetic disc device for lubricating a rotating disc Magnetic disc device for lubricating a rotating disc

1996-12-30

1998-05-26

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 3314

Patent

active

057575819

ABSTRACT:
In a casing 4 formed into a cylindrical container, there are magnetic disc media 6 installed rotatably at a high rotational speed, magnetic heads 5 in contact with recording surfaces of the magnetic disc media 6, fibrous pads 11 projecting radially inwardly from a circumferential wall 2 of the casing 4, impregnated with lubricant and disposed in contact with the recording surfaces of the magnetic disc media, and a porous material 12 disposed in the inner surface of the circumferential wall 2 and in contact with the fibrous pads 11. The lubricant L that has flown from the recording surfaces to the peripheral portion is absorbed to the porous material 12 due to a centrifugal force generated by the rotation of the magnetic disc media 6 moves to the fibrous pads 11 by a capillary action to be fed again to the recording surfaces.

REFERENCES:
patent: 3005675 (1961-10-01), Ledin et al.
patent: 4626941 (1986-12-01), Sawada et al.
patent: 4633351 (1986-12-01), Bardos et al.
patent: 4789913 (1988-12-01), Gregory et al.
patent: 5193046 (1993-03-01), Lemke
patent: 5202803 (1993-04-01), Albrecht
patent: 5396383 (1995-03-01), Gregory et al.
patent: 5559650 (1996-09-01), Repphun et al.
H. Hamilton, "Contact Recording on Perpendicular Rigid Media", Journal of the Magnetic Society of Japan, vol. 15, Supplement, No.S2, 1991.

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