| 摘要 |
<p>PURPOSE:To simplify the mechanism by moving a reverse cam with the receding force of a head base and engaging a take-up with either of a reverse gear and a forward gear of a reel base. CONSTITUTION:A lock pin 59 is moved forward to release lock of a reverse cam 61 while a head base 65 is moved backward, and the head base 65 is moved backward furthermore thereafter, and a reverse operation pin 82 is moved right down along its side edge 91b to press a rear edge 87b in the backward moving direction. A heart cam 85 is turned in the direction of an arrow D4 to move a reverse cam pin 134, which is fitted to a recessed part 89, in the direction of an arrow D5, and a reverse cam 61 joined to the pin 134 as one body is slid in the direction of the arrow D5. As the result, a take-up gear 11 supported axially by the reverse cam 61 is switched from the reverse position to the forward position. That is, the heart cam 85 is turned with the receding force of the head base 65 by the reverse operation pin 82 to switch the running direction of the tape.</p> |
