| 摘要 |
<p>PURPOSE:To prevent the state, where the rotation of a reel base is stopped in a short time, such as a break of music from being detected erroneously as the tape end, by making the detection of the tape end ineffective while a check pin is moved in a set part in accordance with a shape of a cam. CONSTITUTION:The shape of a cam 36 has a set cam part 36a, which moes a check pin 30F back and forth in the set part of a stepped quide hole 23, and a reset cam part 36b which moves the check pin 30F back and forth in a reset part over a projecting piece 24 of the stepped guide hole 23, and the circumferential angle of the set cam part 36a is set to a value wider than that of the reset cam part 36b. The check pin 30F is moved in a longer time in the set part of the stepped guide hole 23 than the set part. Press-contact of a head and a pinch roller is completed while the check pin is moved in a long time, and a reel base 20F is rotated, and friction is given to a check plate 22F to turn the check plate 22F to a position at the time when the reel base 20F is rotated, thus making the detection of the tape end ineffective.</p> |
