Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1990-12-05
1993-04-27
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 60, 242198, G11B 2302, G11B 1504, G11B 1904, G03B 104
Patent
active
052067815
ABSTRACT:
A magnetic tape cassette includes a sliding member, a stopper for preventing the sliding member from being disengaged and a positioning click stopper for engaging the sliding member at a switching position at which an erase possible condition and an erasure preventing condition are chosen, the prevention stopper and the click stopper being independently provided between the sliding member inserted into an aperture in the thickness direction of the cassette casing and the insertion aperture bored through the cassette casing. The click stopper is formed of a stop portion and a guide portion continuous to the stop portion so that the switching operation of the sliding member can be performed smoothly. Thus, the magnetic tape cassette can be placed in the erase possible condition and the erasure preventing condition easily and positively. Further, when the sliding member is pushed too strongly in the switching operation or when the sliding member is worn, this sliding member can be prevented from being disengaged and the erasure can be positively avoided.
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Patent Abstracts of Japan, vol. 13, No. 345 (P-909) (3693) Aug. 3, 1989 & JP-A-1 102 788 (Sony Corp.) Apr. 20, 1989, abstract.
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Eslinger Lewis H.
Evans Jefferson
Levy Stuart S.
Maioli Jay H.
Sony Corporation
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