| 摘要 |
A motor driven hub has a socket defined concentrically therein, with an annular disk bearing surface left around the socket for supporting a flexible magnetic disk. Movable into and out of engagement with the hub is a rotatable clamp having a central body portion and a plurality of clamp segments extending radially outwardly therefrom. The clamp segments have centering portions to fit in the hub socket through the central hole in the magnetic disk for centering same, and clamping portions for clamping the disk against the disk bearing surface of the hub. Each clamp segment further includes a deflectable bridge portion joining the associated centering and clamping portions to the body portion, so that the centering and clamping portions of all the clamp segments are individually resiliently displaceable for firmly clamping the magnetic disk. Each deflectable bridge portion is arcuate in shape, as seen in a radial plane of the clamp, and thus is compactly disposed between the body portion and the centering and clamping portions for resiliently supporting the latter without adding to the axial dimension of the clamp.
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