Patent ID: 6125102
Filing Date: 2000-09-26
Classification: G11B

Abstract:
A disc cartridge including a disc casing which comprises a lower casing element constructed to provide a housing for a recording disc having a central hole, the bottom of the lower casing element comprising an opening, a first part of which is designed to provide a passage for a shaft for driving the disc in rotation, the shaft belonging to a disc-reading apparatus, and a second part of which is designed to provide access for a disc-reading device belonging to the disc reading apparatus, and a casing cover providing a plane wall facing the bottom of the lower casing element, said cartridge further comprising a removable protector member, said protector member comprising a bottom plate providing a wall closing the opening of the bottom of the lower casing element as well as engaging means for engaging the lower casing element so as to keep together the protector member and the lower casing element, said cartridge further comprising a removable locking member placed between the bottom plate of the protector member and the bottom of the lower casing element and separable from the protector member, said locking member comprising locking means adapted to extend through the first part of said opening and to become engaged in the central hole of the recording disc placed in the lower casing element, so as to maintain the recording disc in a fixed position with respect to the lower casing element.