Disc drive apparatus having a mechanism for opening/closing the shutter

Abstract

A disc drive apparatus including a cartridge holder for detachably holding a disc cartridge, which is provided with a shutter slidingly moving in one direction from a closed position to open windows formed in an upper surface and a lower surface of a cartridge case, has a pair of elongated opening/closing arms rotatably mounted on the cartridge holder for moving the shutter in an opening direction by an inserting force of the disc cartridge into the cartridge holder. Each proximal end of the pair of opening/closing arms are rotatably mounted at a predetermined internal on a ceiling plate forming the cartridge holder, at a disc cartridge insertion opening side, the one opening/closing arm for moving the shutter in the opening direction when the disc cartridge is inserted relative to the cartridge holder with a first surface thereof facing upwardly and the other opening/closing arm for moving the shutter in the opening direction when the disc cartridge is inserted relative to the cartridge holder with a second surface thereof facing upwardly. The pair of opening/closing arms cross each other with their distal end portions being disposed in a rearward direction of the cartridge holder. Pins provided at the distal end portions of the respective opening/closing arms for driving the shutter are disposed outside of the closed position of the shutter within the cartridge holder.