| 摘要 |
<p>PURPOSE:To drop exactly a cassette holder by a prescribed timing by turning a turning arm by an inserted cassette, turning a hook arm by its idle end, and detaching an engagement to a link arm. CONSTITUTION:As for turning arms 50L, 50R, an X link system is adopted, and a hook arm 62 is provided on a turning shaft of the arm 50L, its engaging piece 64 is engaged to a link arm 13L for moving upward and downward a holder 5L, and the other engaging piece 57 is engaged to a link arm 13R. When a cassette 6 is inserted, the turning arms 50L, 50R are pushed, a pressing projection 58 of the arm 50R pushes the arm 62, the engagement of the arm 62 and the arm 13L is detached, the arm 13L is turned by a spring, and the holders 5L, 5R drop. As a result, the hook arm 62 is turned by a movement of the idle end of the turning arm, therefore, even if there is a variation in dimensions or accuracy, the holder can be dropped exactly by a prescribed timing.</p> |
