| 摘要 |
<p>PROBLEM TO BE SOLVED: To securely prevent a malfunction that a tape driving device is stopped by mistake right after a driving source starts driving. SOLUTION: When push-button levers 14 to 18 are at standby positions, a spring 132 is pressed against a 2nd depression part 118 to energize an unlocking member 120 clockwise. When the pushbutton lever 18 is pressed in from the standby position shown in the figure to an operation position, a deenergizing part 134 is pressed against the spring 132 right before the push- button lever 18 reaches the operation position to separate the spring 132 from the unlocking member 120. A reel turntable 22, on the other hand, begins to rotate right before the spring 132 leaves the unlocking member 120 and a rotation detection member 108 which is energized in the rotating direction of the reel turntable 22 energizes the unlocking member 120 clockwise instead of the spring 132. The unlocking member 120, while energized clockwise by the spring 132 or rotation detecting member 108, does not stop the device automatically.</p> |
