| 摘要 |
<p>PURPOSE:To realize a light operating force and to simply make the switching of tape running direction and the movement of the head substrate plate, by using the driving force of an electromagnetic means or that of a motor through the force as a trigger. CONSTITUTION:When the latch lever 42 turns counter clockwise against the force of a spring 43 through the attraction operation of an electromagnet 44 from the condition of head substrate retrogression, the latch between the lever 42 and the step 41b is detached, and a gear 41 and a gear 10 are meshed to rotate them into the state of figure (b). When the electromagnet 44 is in the state of figure (c) as the state of attraction, the notch D of the gear 41 is again opposed to the 2nd driving gear 10, the both gears are unmeshed, the lever 32 is held upward into head substrate progressing state. Next, when the power application to the electromagnet 44 is lost, the latch between the latch lower 42 and the projection 41a is detached into the state of figure (a). That is, by applying power to the electromagnet 44, the head substrate is come to the progressing position, and it is returned to the retrogressing position by stopping the power.</p> |
