| 摘要 |
<p>PURPOSE:To reduce the generation of malfunction with a simple structure by not placing the excessive force on a ring gear in the manner of chucking a tape guide of a tape guide assembly by the utilization of the turning operation of a mode driving lever. CONSTITUTION:The lower part of a gear shaft 133a is in contact with the neighborhood of a bent tip of a leaf spring 269a at the time when a pressurizing lever 269 is engaged with a protruding part 282a of the lower ring gear 64. After that, when the lower ring gear 64 is rotated, the protruding part 282 is fitted into a U-shaped notch 269b of the pressurizing lever 269, and the lower end of the gear shaft 133a of a mode lever 133 is simultaneously moved along the outside of the leaf spring 269a, therefore, the pressurizing lever 269 is repulsively pressed clockwise by the leaf spring 269a. Consequently, the excessive force is not applied on the teeth of the ring gear 64 since the protruding part 282a of the lower ring gear 64 is pushed counterclockwise by the notch 269b at a tip of the lever 269, then the reinforcement of the ring gear is unrequired.</p> |
