| 摘要 |
<p>PURPOSE:To simplify a driving system of a tape loading mechanism by using a sectorial arm fitted freely turnably to a fixed chassis to move a moving chassis in common for the purpose of transmission of driving force to a tape loading mechanism. CONSTITUTION:In the case of loading, when a loading motor 130 is rotated, its rotational driving force is transmitted via gears 131 and 132, a shaft 133 and gears 134, 135 and 136 to a disk cam 137 to turn the cam 137 counterclockwise (CCW) in the figure. The cam 137 is formed with two cam grooves 138 and 139, and the sectorial arm 140 with its cam follower 144 engaged with the cam groove 138 is turned CCW around a turning shaft 146. The driving force is transmitted by a gear 148 of a circular-arcuate part of the arm 140 to loading rings 150 and 160 via a gear train 149. Consequently, when the arm 140 is turned CCW, the ring 150 is turned clockwise, while the ring 160 CCW.</p> |
