| 摘要 |
<p>PURPOSE:To switch quickly the state from the reproducing operation state to the rewinding operation state by equalizing rotation directions of a motor in the reproducing operation and the rewinding operation. CONSTITUTION:In this device, rotation directions of the motor in the reproducing operation and the rewinding operation are equal to each other. In the reproducing operation state, a magnetic tape is driven in a certain speed by pressing of a pinch roller 10 to a capstan shaft 12. When power supply to an electromagnet 34 is cut off for the purpose of switching the state from the reproducing operation state to the rewinding operation state, the lock holding force of a lock pin 28 is insufficient, and a control plate 22 is displaced in the direction of an arrow B by a spring 4, and a displacing plate 35 is displaced to the non- operation position, and a switching member 42 is turned and displaced clockwise, and a transmission roll 37 is separated from a driving roll 13 and a take- up roll 18, and the driving force to a take-up reel shaft 14 is cut off. A turning plate 1 is displaced from the reproducing operation position to the stop position by the spring 4, and the pinch roller 10 is separated from the capstan shaft 12. The rotation direction of the motor is switched in case of quick traversing.</p> |
