Patent ID: 7032234
Filing Date: 2006-04-18
Classification: G11B

Abstract:
1. A cartridge for accommodating an information recording medium to be driven by a drive unit that has an insertion opening into which said cartridge is inserted, the drive unit including a lid which opens and closes the insertion opening, and a mechanism for locking a close state of the lid so as to prohibit another cartridge of a type different from said cartridge and said cartridge not facing a predetermined direction from proceeding to an inside of the drive unit, and for unlocking the closed state so as to allow the cartridge to proceed to the inside of the drive unit, said cartridge comprising a front surface that is first inserted into the insertion opening and an unlock member which unlocks the locked state of the lid in cooperation with the mechanism when said cartridge is inserted into said drive unit wherein said unlock member includes two projections that extend from said front surface in an insertion direction of said cartridge into the drive unit for unlocking the locking state of the lid in advance to the insertion of the front surface, one of said projections containing a groove, and wherein said cartridge further comprises a lid that moves along the groove while opening and closing the information recording medium.