Means for stabilizing movement of a flexible disk over a magneti

Details Means for stabilizing movement of a flexible disk over a magneti Means for stabilizing movement of a flexible disk over a magneti

1983-10-31

1986-07-15

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360102, 360106, 360128, 36013034, G11B 5016, G11B 1564, G11B 2108, G11B 1732

Patent

active

046009558

ABSTRACT:
In a magnetic recording and/or reproducing apparatus, a flexible storage disk is rotated within a disk cartridge to move successive radial portions of the disk over an opening in the cartridge. The opening is disposed to provide limited radial access to the disk. A head-to-disk stabilizing assembly seals the opening, preferably at the exterior of the cartridge, to cause the formation of a Bernoulli pull down force on successive radial portions of the disk as each portion is rotated over the opening. Such pull down force momentarily deflects each portion of the rotated disk toward the opening, causing a deflected portion of the disk to remain substantially in contact with a magnetic recording or reproducing head movable along the opening, and thereby ensuring a stable head-to-disk relation.

REFERENCES:
patent: 3178719 (1965-04-01), Shapiro
patent: 4003091 (1977-01-01), Wright
patent: 4074330 (1978-02-01), Norton et al.
patent: 4466032 (1984-08-01), Saito
Slindee, "Burnishing Method & Apparatus for Flexible Magnetic Disks," IBM Tech. Disc. Bull., v. 19, No. 10, Mar., 1977.
Carmichael et al., "Disk Drive for Interchangeable Disk Cartridges," IBM Tech. Disc. Bull., v. 20, No. 11A, Apr., 1978.
Childers, "Disk Cartridge Players," IBM Tech. Disc. Bull., v. 23, No. 4, Sep., 1980.

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