| 摘要 |
<p>PURPOSE:To execute the auto reverse by a simple mechanism by turning a driving arm by an inversion of a fly-wheel, and pressing a pinch roller against a capstan shaft, when a driving gear is detached from a fixed gear and engaged to a reel gear. CONSTITUTION:When winding of a tape is finished and a motor 2 is rotated backward, a driving arm 7 turns counterclockwise a little and is engaged to a fixed gear 9, turned forcibly counterclockwise, and a driving gear 8 is engaged to a rewind reel gear 11. In this case, a pinch roller shaft 14a is detached from a cam 18, and a substrate 13 is drawn by a spring 15, therefore, a pinch roller 14 is pressed against a capstan shaft 16, a tape is rewound in the opposite direction again, and sound recording and reproduction are executed. In such a way, a mechanism for engaging and separating a gear becomes unnecessary, and the structure becomes simple and inexpensive.</p> |
