| 摘要 |
<p>PURPOSE:To enable a front cover to be opened by detecting the opening/closing of the front cover, controlling an adapter chassis so as not to descend and also to stop in a state where the front cover is opened, and unlocking the lock of the front cover only when a large cassette is inserted. CONSTITUTION:At the time of mounting the large cassette 3, a part shown by the 34c of a lock lever 34 is pressed downward by the lower plane of the large cassette 3. Thereby, the lock lever 34 is rotated in a direction shown by arrow head E, and the front cover 28 is not abutted with the part shown by the 34b of the lock lever 34, then, the lock is unlocked. Also, one lock lever 34 is provided at each of both sides of the large cassette 3, and the lock of the front cover 28 can be unlocked only by depressing the right and left lock levers simultaneously. Therefore, unlocking is not performed by a small cassette 1, a hand, or a finger, etc. In such a way, the front cover can be opened.</p> |
