| 摘要 |
<p>PURPOSE:To make a tape of a tape recorder multi-functional and sophisticated by high-speed running, by providing a gear which is coaxial to a capstan shaft and also freely rotatably independently of a rotation of the capstan shaft, engaging selectively the gear with two intermittent-toothed gears, and driving it. CONSTITUTION:A capstan gear 6 uses other exclusive motor 70 than a capstan driving motor 1. The capstan gear 6 (including a gear part 6a) which is separated from a flywheel 4 is fitted externally so as to be freely rotatable on the outside circumference of the lower part of a bearing housing 7. Spacers 71, 72 for executing smoothly rotation are interposed on the upper and lower faces of the capstan gear 6, respectively. 73 is a lower face stopper of the capstan gear 6. A rotational force of the exclusive motor 70 is transferred to a pulley 2a and a belt 3a and given to the capstan gear 6. By a rotational force of this independent capstan gear 6, the displacement control of a magnetic head and a pinch roller are executed.</p> |
