Patent ID: 7185351

Claim:
A cartridge for an information recording medium, comprising: a cartridge case having an opening to receive the information recording medium; an opening cover, detachably mounted to the cartridge case at the opening, to enable the information recording medium to be received and/or withdrawn into/from the cartridge case; holding means for holding the information recording medium relative to the opening cover by supporting the information recording medium when the information recording medium is completely withdrawn from the cartridge case, the holding means including a pair of elastic pressure parts formed on the opening cover to support the information recording medium relative to the opening cover, the elastic pressure parts each including receiving ribs at distal ends thereof; positioning means for positioning the information recording medium, which is accommodated in the cartridge case, upward/downward at an exact position; and releasing means for releasing the information recording medium from the holding means by forcing the receiving ribs away from one another when the opening cover is completely received in the cartridge case.