| 摘要 |
<p>PURPOSE:To perform reproducing, fast forward and rewinding operations with only one motor for driving by providing a head base for advancing or retreating a magnetic head and a pinch roller in accordance with movement of a slide plate. CONSTITUTION:When the motor 48 is turned (forward rotation) in the direction of an arrow C, a center gear 46 is turned via a belt 50, and a planetary gear 43 is meshed with an inner gear 37 and turning round on its own axis and revolving in the direction of an arrow D. At this time, an axis 42 is brought into contact with a changeover lever 32, and the lever 32 is turned in the direc tion of an arrow E. Consequently, the slide plate 20 is moved in the direction of an arrow F, a pin 25 is regulated by a cam part 26, so that the head base 23 is advanced. Then, when the motor 48 is turned (reverse rotation) in the direction of an arrow H, the planetary gear 43 is meshed with the inner gear 37 and turning round on its own axis and revolving in the direction of an arrow I, ant the lever 32 is turned to move the slide plate 20 in the reverse direction to an intermediate position, so that the head base 23 is retreated. By this method, a tape traveling mode is changed only by changing the forward or reverse rotation of the one motor 48.</p> |
