| 摘要 |
<p>PURPOSE:To improve the positioning accuracy of a pole base, by clamping a pinch roller on a capstan elastically by the displacement of a linkage member at a load completing time, and making interact an energizing force on respective loading means. CONSTITUTION:At a tape loading time, a pinch roller cam 73 is turned in order by pins 62b and 62a of a take-up gear 28, and at the load completing time, a pinch roller 71 is clamped on a capstan 80 by the elastic force of a spring 82 by the small driving force of the pinch roller cam 73, with the aid of a torque mechanism consisting of the pinch roller cam 73, a rink 81 that becomes the linkage member, and a pinch roller arm 78. Also, at the same time, the spring 82 strung between the rink 81 which interlinks the pinch roller 78 with the pinch roller cam 73, and the pinch roller cam 73, always energizes the take-up gear 28 elastically in a loading direction, then, supports the positioning force of the pole base. Thereby, the positioning accuracy of the pole base can be improved.</p> |
