Disc cartridge with a cleaning mechanism
AssigneeHitachi Maxell, Ltd.
InventorsNobuhiko Naganawa, Yoshitake Kato, Minoru Fujita, Kazuya Fukunaga
Life of this patent
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Abstract
A disc cartridge which comprises an outer case formed of a top half and a bottom half assembled to the top half to provide a disc chamber for accommodating a recording disc adapted to be rotated, a pair of pressure plates mounted in the top half and bottom half so as to oppose each other, cleaning sheets laid between a disc and the pressure plates and openings defined respectively in the top half and bottom half so as to correspond to each of the pressure plates for pressing the pressure plates toward the disc.
Claims7
A disc cartridge comprising an outer case formed of a top half and a bottom half assembled to the top half to provide a disc chamber for accommodating a recording disc adapted to be rotated, a pair of pressure plates movably captured within the top half and bottom half of said outer case respectively so as to oppose each other in proper alignment, cleaning sheets positioned between said disc and said pressure plates, and openings defined respectively in said top half and bottom half of said outer case for accommodating each of said pressure plates such that said pressure plates are adapted to contact their associated cleaning sheet and exert a substantially uniform normal pressure onto said disc, said pressure plates and corresponding openings juxtapositioned just prior to head insertion openings defined in said top and bottom half.
Dependencies are inferred from the claim text.