| 摘要 |
<p>PURPOSE:To prevent a tape from careless movement without using conventional exclusive solenoid or the like by forming a reel turntable back tention applyting device allowed to apply brake load to a reel turntable arranged on the delivery side at the time of reverse travelling. CONSTITUTION:Almost simultaneously with the time when guide rollers 21, 25 on the inlet and outlet sides and inclination pins 22, 24 start to move so as to return into a cassette after the release of the press contact of a pinch roller by an unshown unloading driving device, a reel motor 7 is rotated in the counterclockwise direction and the reel turntable 2 on the delivery side is driven through an idler 6 similarly to rewinding. Consequently, a magnetic tape 1a drawn to the outside of the cassette 1 is wound. If a winding reel turntable 3 is slightly rotated in the counterclockwise direction by the movement of the magnetic tape 1a, a reel pulley 9 is interrupted at its rotation by an arm 40 similarly to the operation at the time of loading and reverse travelling. Since braking force is applied to the winding reel turntable 3, the tape stopped at its rotation is prevented from careless movement.</p> |
