| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize the stable and highly accurate tape running by surely preventing the tape from sagging. SOLUTION: A tape driving part is set to a desired operation mode by the changeover through a constant speed running mode in the manner of driving a cam gear 10 of mode changeover by utilizing the driving force of a capstan motor 1, and when the mode is again changed over and set to the constant speed running mode, the operation of a tension lever 42 is controlled linked with the operation of the cam gear 10 for mode changeover. In the state the constant speed running mode is set by the changeover, the unoperational state is once set and a reel base 28 at the supply side is made capable of driving, then the anticipated subject is resolved.</p> |
