| 摘要 |
An optic disc retaining structure includes an optic disc, a disc carrier, and magnetically attractive device, wherein the carrier forms a hub in the form of a projection extending from a surface of the carrier without any transverse outward protrusion and having an outside diameter substantially corresponding to an inside diameter of a central bore of the optic disc. The magnetically attractive device includes a thin plate of magnetically attractive material and a flexible magnet mounted to and surrounding the central bore of the disc and the hub whereby the disc can be easily disposed into the carrier and attached thereto by the magnetic attraction between the thin plate of magnetically attractive material and the flexible magnet and can be easily removed from the carrier.
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