Flexible magnetic disc

Details Flexible magnetic disc Flexible magnetic disc

G - Physics

11

B

352/24.32

G11B 23/00 (2006.01) G11B 17/02 (2006.01) G11B 17/028 (2006.01)

Patent

CA 1217562

FLEXIBLE MAGNETIC DISC ABSTRACT OF THE DISCLOSURE In a flexible magnetic disc adapted for mounting on a drive spindle of a recording and/or reproducing apparatus and having a hub structure secured to a flexible magnetic sheet member at the center of the latter and defining a bore for receiving the drive spindle; the hub structure includes a substantially circular metal plate with a central aperture substantially registering with the bore and which, at its edge, defines a pair of positioning surfaces projecting into the bore at locations spaced apart about its axis, and a metal spring also projecting into the bore at a side of the latter remote from the positioning surfaces and located by positioning seats also defined at the edge of the aperture in the circular metal plate for engaging the metal spring with the drive spindle in the bore and securely seating the drive spindle against the metal positioning surfaces.

446900

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