Patent ID: 7360229
Filing Date: 2008-04-15
Classification: G11B

Abstract:
1. An optical disc cartridge comprising: a casing having a disc inserting/opening part for inserting and taking out a disc at an upper surface thereof and having an access hole to which an optical pickup accesses at a lower surface thereof; a pair of shutters mounted in the casing, for opening and closing the access hole and contact-supporting a disc at two points or at one point; a rotation wheel rotatably coupled to the shutters, for moving the shutters and placing an optical disc thereon; a wheel fixing/releasing means mounted at an inner side of the casing, for fixing or releasing the rotation wheel; and a disc fixing/releasing means movably mounted at the casing, for controlling a size of the disc inserting/opening part and thereby limiting an insertion/takeout of an optical disc, wherein the disc fixing/releasing means is provided with a supporting protrusion for supporting the optical disc in case of decreasing a size of the disc, inserting/opening part by moving the disc fixing/releasing means towards the disc inserting/opening part.