| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a cassette holder and to optimize operation while reducing its manufacturing cost. SOLUTION: A moving mechanism for moving a holder body 11 for holding the cassette 1 has a pair of first arms 13 and 13 and a pair of second arms 10 and 10 which are respectively supported at both flank parts 15 and 15 of the holder body. The first arms and the second arms are made turnable with each other around their respective intermediate parts as fulcra. A pair of the first arms are connected at their one end to each other by a connecting part 12. This connecting part and a pair of the first arms are integrally formed.
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