Disc cartridge having a liner and an elastic member for maintain

Details Disc cartridge having a liner and an elastic member for maintain Disc cartridge having a liner and an elastic member for maintain

1988-11-22

1990-12-18

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2303

Patent

active

049790650

ABSTRACT:
A disc cartridge capable of ensuring its stable and positive operation without damaging a disc while satisfactorily producing a cleaning effect and maintaining adequate contact between the head of a cartridge operating unit and the disc. Each of a pair elastic members respectively mounted on the upper and lower inner surfaces of a casing forcibly presses a sheet-like liner situated between the elastic member and a disc against the disc through a projection portion having a predetermined length formed as part of the elastic member, resulting in the liner contacting the disc with a force at substantially a constant level for a long period of time.

REFERENCES:
patent: 4620247 (1986-10-01), Papciak et al.
patent: 4677516 (1987-06-01), Iizuka et al.
patent: 4739433 (1988-04-01), Oishi

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