| 摘要 |
<p>PURPOSE:To obtain an impedance roller having the sufficient restraining effect of tape speed fluctuation and capable of being easily constituted in the tape running system of a magnetic recording and reproducing device. CONSTITUTION:This magnetic recording and reproducing device is provided with the impedance roller 1 arranged in the middle of a tape running path from a supply reel to a take-up reel and abutted on a tape 5. The roller 1 is provided with a columnar tape contact part 2, a large diameter part 3 positioned at the upper part of the contact part 2 and having a larger diameter than the contact part 2, and a locking part 4 positioned at the lower part of the contact part 2 and preventing the roller 1 from being separated; and the contact part 2, the large diameter part 3 and the locking part 4 are integrally molded.</p> |
