Recording medium drive device, electronic equipment having the recording medium drive device, and recording medium cartridge

摘要

To prevent erroneous insertion of a recording medium cartridge into a holder in a recording medium drive device simply and without causing a sharp rise of price of the recording medium drive device. A shutter opening piece ( 32 c) for sliding a shutter ( 110 ) supported upon a case ( 101 ) of a recording medium cartridge ( 100 ) to open a light transparent hole ( 101 h) is provided in a holder ( 8 ) in a recording medium drive device ( 6 ), when the recording medium cartridge ( 100 ) is normally inserted into the holder ( 8 ), the shutter ( 110 ) is slid by the shutter opening piece ( 32 c) to open the light transparent hole ( 101 h), and when the recording medium cartridge ( 100 ) is inserted into the holder ( 8 ) in an erroneous direction, the opening edge of a function expansion groove ( 104 ) of the case ( 10 1) contacts the shutter opening piece ( 32 c) to prevent erroneous insertion of the recording medium cartridge ( 100 ) into the holder ( 8 ).