| 摘要 |
<p>PURPOSE:To obtain a rotary head drum capable of reducing the generation of a spacing by imporving the touch state of a tape to the head at the exit part of the drum. CONSTITUTION:The upper side surface of a lead 3 of the fixed drum 2 at the exit part of the drum is formed on the reverse tapered part 6 in which the diameter of the fixed drum 2 becomes larger to the rotary drum side 6. Also, the range forming the reverse-tapered part 6 is made to the angle of nearly 90 deg. facing the entrance side of the drum from the point the tape 1 is separated from the fixed drum 2 at the exit side part of the drum.</p> |
