| 摘要 |
<p>PURPOSE:To prevent tape deterioration due to damages at upper and lower edge of a tape, by forming a surface which is not perpendicular to a shaft, by tapering the tape height guide surface of a flange, etc. CONSTITUTION:For example, the tape guide surface 13 of an upper flange 7 and the tape guide surface 14 of a lower flange 8 are tapered. Therefore, even if the axial direction of a guide pin 9 is not set perpendicular to the running direction 12 of a tape 11 in fitting, the tape 11 never touches the corners of the upper flange 7 and lower flange 8 and a part wound around the guide pin 9 meets the tape guide surfaces 13 and 14, so that the tape 11 hardly curls. This constitution prevents the breadthwise upper and lower edges 15 and 16 of the tape 11 from being damaged and avoids tape deterioration due to curling.</p> |
