| 摘要 |
<p>PURPOSE:To suppress the diameter and the height of a head drum to the necessary minimum and to miniaturize a VTR, etc., by obtaining largely a tape coiling angle to a guide roller by using the guide roller with a flange at the coiling starting position and the coiling completing position to the head drum of a magnetic tape. CONSTITUTION:Since guide rollers 21 and 22 are provided in the inclined condition, the part coiled to this out of a travelled magnetic tape 12 is energized so as to slide along the outer periphery and shift in the width direction of a tape, and such a shifting is stopped by flanges 23, 23 and 24, 24 provided at these guide rollers 21 and 22. Consequently, the part in which, the larger the tape coiling angle to a head drum is, the more necessary to be bent by the large angle is, is coiled and regulated to the guide roller without giving a large load to the travelling of the tape, and therefore, without enlarging the inclining angle of the head drum, the diameter of the drum can be made smaller.</p> |
