Patent ID: 6782548
Filing Date: 2004-08-24
Classification: G11B

Abstract:
A disc cartridge comprising:a cartridge body including a disc storage portion, a chucking opening and a head opening, wherein the disc storage portion has a disc window and a bottom and stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion and that the first side of the disc is exposed through the disc window; the chucking opening is formed on the bottom of the disc storage portion so as to get the disc chucked externally; and the head opening is also formed on the bottom of the disc storage portion so as to allow a head, which reads and/or writes a signal from/on the second side of the disc, to access the second side of the disc; a plurality of shutters, which are supported to, and rotatable with respect to, the cartridge body between the second side of the disc and the bottom of the disc storage portion so as to expose or cover the chucking opening and the head opening cooperatively; and disc holding portions provided at portions of the respective shutters for fixing the disc onto the shutters or the cartridge body synchronously with a movement of the shutters, by pressing the disc toward the bottom of the disc storage portion when the shutters covers the chucking opening and the head opening.