Disk cartridge

G - Physics – 11 – B

Patent

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Details

G11B 23/03 (2006.01)

Patent

CA 2476872

A disk cartridge includes a lower case having an opening hole, an upper case for accommodating a disk together with the lower case, a shutter for opening and shutting the opening hole, and a close covering member closely contacting a non-information area at an inner circumference of the disk when the shutter is closed and being separated from the non-information area at an inner circumference of the disk when the shutter is open. Thus, when the shutter is closed, intrusion of dust is prevented so that the possibility of the information area of the disk being contaminated is lowered.

La présente invention concerne une cartouche de disque qui comprend un étui inférieur muni d'un trou d'ouverture, un étui supérieur destiné à recevoir un disque et l'étui inférieur, un volet permettant d'ouvrir et de fermer le trou d'ouverture, et un organe de recouvrement étroit qui se trouve en contact étroit avec une zone de non information sur une circonférence interne du disque lorsque le volet est fermé et qui se trouve séparé de la zone de non information sur la circonférence interne du disque lorsque le volet est ouvert. Par conséquent, l'invention permet, lorsque le volet est fermé, d'empêcher la poussière de pénétrer à l'intérieur, réduisant le risque que la zone d'information du disque ne soit contaminée.

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