DISK CARTRIDGE

摘要

PURPOSE: A disk cartridge is provided to safely save a disk data area in the case of operation for opening and shutting an open hole, by contacting a shutter only with a non-data area of the disk. CONSTITUTION: A case(201) contains a disk. A cover is installed at the case, having an open hole(202) opened to the outside. A shutter(210) is movably installed at a lower part of the disk in the case for opening and shutting the open hole. The shutter includes protruded parts(220,230) having incline planes inclined at a predetermined angle and supporting a non-data area of an outer periphery of the disk. When the shutter is opened, the disk descends following the incline planes. When the shutter is closed, the disk ascends following the incline planes, so that the disk is closely attached around the open hole of the cover.