| 摘要 |
<p>PURPOSE:To attain fast feeding of a tape to any direction with simple constitution by using two electromagnetic mechanism to select and operate three operations such as tape right/left fast feeding and changeover of running direction. CONSTITUTION:A normally closed constact S1a is released and a normally open contact S1b is closed at the same time in relation of the forward movement of a moving member 8 or 9 up to a position locked by a locking mechanism 32. Further, an interlocking switch S2a is switched in interlocking with an operation changeover switch 62a and an interlocking switch S2b is switched in interlocking with an operation changeover switch 62b. In closing the operation changeover switch 62a, an operation changeover electromagnetic mechanism 55 is connected to a power supply E and in closing the operation changeover switch 62b, an operation changeover electromagnetic mechanism 56 is connected to the power supply E. Further, in closing the operation changeover switches 62a, 62b at the same time, the locking state of the locking mechansim 32 to the moving members 8, 9 is released.</p> |
