| 摘要 |
<p>PURPOSE:To drive stably a magnetic tape even when the turning shaft center of a pinch roller is tilted to a capstan shaft by fitting a tape running guide to one arm of a rotary member having the 1st and 2nd arms and providing the pinch roller to the other arm. CONSTITUTION:A rotary member 17 having the 2nd arm 17b prolonged along the 1st and 17a from a base 17c is provided. Even when the rotary shaft center y' of the pinch roller 11 is tilted by an angle theta to a rotary shaft center (y) at normal state due to any cause such as defect of the structure of turning shaft of the pinch roller 11, since the displacement gives effect onto the 1st arm 17a and does not give effect onto the adjacent 2nd arm 17b, or even when it gives effect onto the arm 17b, it is very slight, the shaft center of a table guide pose 16 remains in parallel with the capstan shaft 10 and is not tilted, and even when tilted, it is very slight. Thus, a magnetic tape 4 does not have a remarkable slack at the part of the tape guide post 16.</p> |
