| 摘要 |
<p>PURPOSE:To switch a tape feeding speed in conformity with the detecting of a speed switching time by constituting the title mechanism so that when a detecting means detects its speed switching time, a plunger operates immediately and drives a fast-feeding lever, and a fast-feeding gear is moved to a neutral position and released instantaneously from a fast-feeding state. CONSTITUTION:When a speed switching time of a magnetic tape is detected by a magnetic head in a fast-feeding state, a detecting circuit executes an elec tric conduction to a plunger 15, and an interlocking lever 13 moves and turns a fast-feeding lever 10. Subsequently, a fast-feeding gear 7 is detached instantane ously from an idler gear 11, and a fast-feeding operation of the tape is released. In such a way, when the speed switching time has been detected, in conformity therewith, a fast-feeding/rewinding state can be switched to a reproducing state with high accuracy.</p> |
