| 摘要 |
A master unit of reversible tape-feed mechanism comprises a capstan, pressure roller for magnetic tape drawing, magnetic heads arranged symmetrically on both sides relative to the capstan, cushion pressure pads and guide posts. A lever with magnetic heads, cushion pressure pads and guide posts arranged at both arms thereof is pivotally mounted in alignment with capstan and its central portion is capable of reciprocally oscillating round the capstan rotation axis. |
