Patent ID: 6523685
Filing Date: 2003-02-25
Classification: G11B

Abstract:
A disc retaining member for securing a disc shaped element having a central aperture, said member comprising:a) a raised circular hub having a substantially cylindrical side wall, said hub projecting upward from a planar base and having a central axis extending generally parallel to said cylindrical side wall; b) said hub comprising first and second upstanding annular sections having, respectively, first and second side walls, said first annular section comprising at least 180Â° of the circumferential extent of said circular hub and said second annular section comprising substantially the remainder of the 360Â° circumferential extent of said hub; c) each of said annular sections including at least one radially extending rim projecting outwardly beyond the outside diameter of said annular section side walls; d) means for supporting said second annular section on said base to allow said second annular section to pivot radially inwardly and downwardly and to resiliently return to its unpivoted position; e) tab means cantilevered from said second annular section above said base, said tab means extending radially inwardly toward said central axis; f) wherein a disc shaped element mounted on said disc retaining member may be one-handedly removed therefrom by the application of finger pressure to said tab means in a direction causing the free end of said tab means to move downwardly toward said base, the movement of said tab means causing said second annular section to pivot radially inwardly and downwardly, allowing the disc central aperture to slide upwardly over said radially extending rims, whereby the disc shaped element is released from engagement with said radially extending rims.