| 摘要 |
<p>PURPOSE:To reduce power consumption, to simplify a structure and to decrease cost by moving a cam gear, releasing the tilt of a pinch roller switching lever, and turning it to the neutral condition when a holding power due to a magnet is cut. CONSTITUTION:At one edge of a reverse lever 31, a cam gear 21 is mounted, the adsorption piece of a magnet is mounted at one edge of a resetting lever 14 to turn with a supporting point shaft 30 as a supporting point, a spring 35 is hung between the reverse lever 31 and the resetting lever 14 and an engaging shaft 36 on the reverse lever 31 and the side end of the resetting lever 14 are engaged. Thus, a constant relation condition is kept, this is turned intermittently in a clockwise direction by a resetting cam gear 2, turned in the counter-clockwise direction by a spring 34 and the cam gear 21 and a pinch roller switching lever 6 are made into the neutral condition. Thus, without moving a main component such as a head base, the press-bonding force of the pinch roller is eliminated and simultaneously, both FF and REW button plates can be also released.</p> |
