Patent ID: 6590858
Filing Date: 2003-07-08
Classification: G11B

Abstract:
A disc cartridge comprising:cartridge case in which a disc accommodating chamber is formed between an upper shell and an intermediate shell or between the intermediate shell and a lower shell by overlaying the upper shell, the intermediate shell and the lower shell, while the intermediate shell is supported rotatably by the upper shell and the lower shell; disc-like recording medium which is accommodated rotatably in the disc accommodating chamber while part of the disc-like recording medium is exposed through an opening portion provided in the intermediate shell, the lower shell or the upper shell; and a pair of shutter members mounted on the intermediate shell, capable of opening/closing the opening portion, wherein at least one of the upper shell and the lower shell is provided with an operating window for rotating the intermediate shell and a driven portion, which is engaged with a shutter opening/closing means passing outside the operating window for rotating the intermediate shell up to a predetermined position, is provided on an external peripheral face of the intermediate shell.