| 摘要 |
<p>PURPOSE:To simplify the constitution, and to decrease the number of parts by providing as one body a pinch roller to a head supporting member which can be deviated in the rotating direction, and switching selectively the pinch roller by the rotational deviation which follows reverse switching operation. CONSTITUTION:Pinch rollers 18a, 18b which is inserted and held a recording and reproducing head 20 in a head lever 17 provided with this recording and reproducing head 20 are provided as one body so as to be freely rotatable, on the head lever 17. By a reverse switching operation, the head lever 17 is advanced and deviation a little in the rotating direction so that the correspond ing pinch rollers 18a, 18b for reciprocating motion can also be switched selective ly so as to abut on capstans 27, 28. Accordingly, switching constitution of the pinch roller can be simplified.</p> |
