Abstract: A cartridge auto-changer is provided containing a plurality of cartridges therein and adapted to take out any one of the cartridges to thereby effect the recording and/or reproduction of information. The cartridge auto changer includes an information recording-reproducing apparatus for effecting recording and/or reproduction of information on recording mediums contained in the cartridges, a containing shelf for containing the plurality of cartridges therein, and a conveying device for conveying the cartridges between the information recording-reproducing apparatus and the containing shelf. The conveying device includes a feed roller for conveying the cartridges from the conveying device to the information recording-reproducing apparatus, and a push lever for pushing the cartridges into the information recording-reproducing apparatus subsequently to the conveyance of the cartridges by the feed roller.

Abstract: A cartridge auto-changer includes a containing shelf containing a plurality of cartridges therein, a recording-reproducing apparatus for effecting recording and/or reproduction on recording media in the cartridges, a slot for loading the cartridges therethrough from the outside of the auto-changer into the auto-changer, a conveying mechanism for conveying the cartridges between the containing shelf and the slot and between the slot and the recording-reproducing apparatus, and a stopping mechanism for stopping the cartridges inserted through the slot on the conveyance route between the slot and the receiving position of the conveying mechanism for the cartridges.

Abstract: A shutter opening device has a cartridge for containing a disk-like recording medium, a first arm and a second arm. The first arm is so provided as to be able to contact a shutter leading portion of the cartridge inserted in the device and to be pivotable with the insertion operation. The second arm is provided on the first arm. The second arm is kept engaged with an end face of the shutter in a direction parallel to the inserting direction while the first arm is being pivoted, and the shutter is opened by the pivotal movement of the first arm.