Optical disc cartridge and mechanism for preventing an incorrect insertion of a cartridge
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United States of America Patent
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-
Feb 25, 1997
Issued Date -
N/A
app pub date -
Dec 27, 1993
filing date -
Jul 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical disc cartridge provided with a mechanism for preventing incorrect insertion of a cartridge. A cut-off portion is provided at a head and side portion at an inserting side of, for example, a 3.5' erasable optical disc cartridge. The cut-off portion is located at an side opposite to a corresponding cut-off portion used in a 3.5' (86 mm) floppy disc cartridge. A stopper is provided in a cartridge insertion portion of the reproducing apparatus to prevent incorrect insertion of the cartridge and is located to correspond to the location of the cartridge cut-off portion. A depression or the like is provided at a front end of the cartridge and at a portion symmetrical about an axis to an edge of the shutter where the shutter opening lever normally strikes.
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