Transportation body for flexible optical disk, optical disk transportation apparatus, and optical disk transportation method
AssigneeNEC Corporation
InventorsMasashi Kubota, Kenji Tagami, Hisaya Niizawa
Life of this patent
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Abstract
A transportation body 1 for a flexible optical disk 10 has flexibility, and includes a rotation stabilizing board 2 having a disk-shaped form, an optical disk alignment unit 4 installed in the central part of the rotation stabilizing board 2, and a spacer 3 installed on a surface of the rotation stabilizing board 2. A combination of the transportation body 1 and the optical disk 10 can be treated as an equivalent of a conventional optical disk having rigidity, by transporting the flexible optical disk 10 placed on the transportation body 1 and by recording/reproducing information onto/from the flexible optical disk.
Claims18
A transportation body for a flexible optical disk, comprising:
- a rotation stabilizing board having a disc-shaped form;
- an optical disk alignment unit installed in a central part of the rotation stabilizing board;
- and
- a spacer installed on a surface of the rotation stabilizing board, a thickness of the spacer being from 0.1 to 0.3 mm,
- the rotation stabilizing board, the spacer, and the optical disk alignment unit being unified so that respective centers of the rotation stabilizing board, the spacer, and the optical disk alignment unit coincide with a rotation axis, and
- an inner end part of the spacer projects toward an inside of a central hole of the rotation stabilizing board and engages a circumference part of the optical disk alignment unit,
- wherein the rotation stabilizing board is positioned against an opposite surface of a recording surface of the flexible optical disk that is irradiated with a laser beam for recording or reproducing information, and supports the flexible optical disk from below, an entirety of the rotation stabilizing board being a steel sheet and having a light blocking effect.
Dependencies are inferred from the claim text.