| 摘要 |
A case can hold a disc that has a central hole and a predetermined outside diameter. The case has a pair of wings with a hinge joint for allowing the wings to swing between an open and a closed condition. The wings in the closed position are adapted to releasably hold the disc at a predetermined disc location between the wings with clearance at the periphery of the disc. This clearance allows loading and unloading of the disc in the open condition without interference. The wings have at least a pair of members for encaging the disc in order to impede removal of the disc in any direction around any one of the members. In the closed condition the members extend from the inwardly facing surface of one of the wings, transversely past the predetermined disc location, to a position at the inwardly facing surface of the other wing, in order to prevent removal of the disc. The pair of members are positioned to avoid overhanging the disc. Thus, the disk can be loaded squarely and held in the predetermined location without engaging the members.
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