| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot structure of a cassette which is small in number of parts and is easily manufactured. SOLUTION: The slot structure of the cassette (MD 60) for insertion of the cassette into a device is approximately composed of a guide member (30) for positioning the cassette and a flap 20 for opening and closing the slot. Accordingly, the slot structure may be made simpler. A diameter (D3) of part of a revolving shaft (21) for supporting the flap is made greater than a diameter (D2) of a hole for a bearing, by which the revolving shaft itself is provided with a positioning function relating to the lateral direction of the revolving shaft and the effective utilization of the space around the slot is made possible.
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