| 摘要 |
A cassette loading mechanism of a magnetic recording and reproducing apparatus is capable of selectively loading a large-sized cassette and a small-sized cassette. A largesized cassette insertion opening having a form corresponding to the large-sized cassette is provided in a cassette control unit. The inserted large-sized cassette is supported by a slider. This slider is movable between an insertion position and an operation position. The small-sized cassette is received in a housing outside the cassette control unit through the large-sized cassette insertion opening and it is set and supported in an adapter chassis. The adapter chassis is movable through a slide plate between a retreat position enabling insertion of the large-sized cassette and a setting position, and between the setting position and an operation position. The adapter chassis can be attached to the slider in the operation position.
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