| 摘要 |
<p>PURPOSE:To instantly give a brake to various members at the time of a mode shifting by setting up a rachet and a slide plate with a pin which moves along a cam groove to enable the pin to move rapidly. CONSTITUTION:At the stopping time, the pin 110 is in a position of A of the 3rd cam groove 108. When a fast forward/rewinding signal is received, a drive motor 5 rotates clockwise, and then a rotational shaft 135 to be rotated by a pulley 11 also rotates clockwise. On the other hand, since a 2nd cam gear 47 rotates anticlockwise, the pin 110 moves in the direction of B, so as to move the slide plate 109 to the right. When the pin 110 arrives in the position of B, the pin 110 is released from the cam surface to move together with the rachet 130 and the slide plate 109 in the direction of C by a spring 133. However, a braking plate 134 is brought into contact on its opposite side surface to a slant surface with the rotational shaft 135, so as to regulate the movement of the rachet 130 to the left, thus performing the fast forward/rewinding operation under these conditions.</p> |
