Disc cartridge lid structure

Details Disc cartridge lid structure Disc cartridge lid structure

1997-02-26

1999-06-08

Klimowicz, William J.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

360133, 2063081, G11B 2302, G11B 2303

Patent

active

059109416

ABSTRACT:
A disc cartridge includes a cartridge casing for freely rotatably accommodating a disc-shaped recording medium. The cartridge casing has positioning recesses defined in respective portions of the right and left sides of the cartridge casing adjacent the rear end thereof. A generally U-shaped access opening is defined in the rear end of the cartridge casing and respective portions of the left and right sides thereof including the associated recesses. A lid assembly for selectively opening and closing the access opening is pivotally supported by the cartridge casing. The lid assembly includes a lid body adapted to protrude into the cartridge casing so as to occupy a space between the recording medium within the cartridge casing and the access opening. The lid body includes a regulating surface for restricting a play of the recording medium within the cartridge casing and left and right cutouts defined therein in a manner alignable with the left and right recesses, respectively. A thin-walled cavity for reducing the volume and weight of the lid assembly being formed so as to occupy a major portion of surface walls of the lid body while opening at at least one of upper and lower surface walls.

REFERENCES:
patent: 4455642 (1984-06-01), Inaba
patent: 5093823 (1992-03-01), Ouwerkerk et al.
patent: 5150354 (1992-09-01), Iwata et al.
patent: 5293293 (1994-03-01), Iwata et al.
patent: 5615070 (1997-03-01), Bordes

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