Flexible magnetic disc cassettes with intergrally molded...

Details Flexible magnetic disc cassettes with intergrally molded... Flexible magnetic disc cassettes with intergrally molded...

G - Physics

11

B

G11B 23/04 (2006.01) G11B 23/033 (2006.01)

Patent

CA 2060640

ABSTRACT A cassette case for rotatably accommodating a flexible magnetic disc includes joined upper and lower cassette case halves. At least the upper cassette case half (and preferably both cassette halves) is formed of a molded plastics material, preferably an oxymethylene polymer. A wear button which is centrally located with respect to, and projects outwardly from, an interior surface of the upper cassette half, includes an integrally molded wear button. The wear button provides a low friction surface against which a drive spindle of a magnetic recording/reproducing apparatus bears when the cassette case (and its associated flexible magnetic disc) are placed into service. The wear button is most preferably in the form of a smooth convexly arcuate surface so as to minimize the contact area with the drive spindle, which thereby further contributes to its low friction characteristics.

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