Plate spring assembly for a magnetic recording disk cartridge

Details Plate spring assembly for a magnetic recording disk cartridge Plate spring assembly for a magnetic recording disk cartridge

1986-05-19

1988-05-10

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 97, 360 99, 369282, 206444, G11B 2303, G11B 5012, G11B 5016, G11B 370

Patent

active

047439939

ABSTRACT:
A magnetic recording disk cartridge comprises a magnetic recording disk accomodated for rotation in a casing. The magnetic recording disk is provided with a center core having a central opening into which a spindle of a magnetic recording/reproducing system is inserted to be drivingly engaged therewith. The center core comprises a core block provided with the central opening and a pair of slits formed in the wall portion of the core block defining the central opening and spaced from each other by a predetermined distance; and a plate spring which extends across the central opening and the opposite end portions of which are fitted into the slits and held therein so that the plate spring can be resiliently deformed in a direction radial to the magnetic recording disk. When the spindle is fitted into the central opening, the plate spring is pushed by the spindle to be resiliently deformed, and the outer pheripheral surface of the spindle is urged radially inwardly by the resiliency of the plate spring so that the rotational axis of the spindle coincides with the central axis of the magnetic recording disk.

REFERENCES:
patent: 1824253 (1931-09-01), Acheson
patent: 1846378 (1923-02-01), Acheson
patent: 4459628 (1987-07-01), Barton
patent: 4503474 (1985-03-01), Nigam
patent: 4532564 (1985-07-01), Larson et al.
patent: 4590532 (1986-05-01), Saito
IBM Technical Disclosure Bulletin, vol. 13, No. 5, Oct. 1970 _"Disk Pack Locating Device" by A. Kulth, pp. 1242.

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