| 摘要 |
<p>PURPOSE:To improve the reliability of a mechanism part by retreating an adapter to a motion position lower part in advance, allowing its coalescence with a cassette holder with its vertical ascent only at the small sized cassette inserting time and moving to the motion position with its vertical descent integrally with the cassette holder. CONSTITUTION:A cassette holder 300 is horizontally moved from a cassette insertion position (1st position) to a motion position upper part (2nd position) and vertically moved from the 2nd position to a motion position (3rd position). On the other hand, an adapter 400 retreats at a motion position lower part (5th position) at normal time, the cassette holder 300 placing a small sized cassette 210 on is horizontally moved to the 2nd position from the 1st position and the adapter 400 is vertically ascended from the 5th position, when the cassette holder 300 is stopped at the 4th position where it started the vertical movement toward the 3rd position. It is then passed through the 3rd position, headed for the 4th position, coalesced with the cassette holder 300 and descended to the 3rd position integrally. Consequently at a standard cassette 200 insertion time the motion of the cassette holder 300 only becomes, the motion is simplified and the reliability of the mechanism part can be improved.</p> |
