| 摘要 |
<p>PURPOSE:To ensure the stale traveling of a magnetic tape by having an interlocking state between a capstan of a tape constant speed feed mechanism and the rotary shaft of a rotor via an interlocking mechanism after setting the rotary shaft and the capstan in parallel to each other and revolving the capstan synchronously with the rotor with the rotary phase control of the rotor. CONSTITUTION:An interlocking mechanism A is provided between a rotary shaft 22 of a rotary head drum device 1 and a capstan shaft 17. Thus the revolution of a rotary drum 21, i.e. the revolving power generated by a motor 35 of the shaft 22 is transmitted to a gear 47 of the shaft 17 from the tooth part 22a of the shaft 22 via gears 52 and 51 of an intermediate shaft 50. Thus the shaft 17 is revolved. When said revolving power is transmitted, the gears 51 and 52 function as the decelerating mechanisms to reduce the revolving speed of the shaft 17 less than the speed of the drum 21.</p> |
