公开(公告)号：CA2064642A1

公开(公告)日：1992-12-14

申请号：CA2064642

申请日：1992-04-01

Applicant: IBM

Inventor： EATON JAMES H ,  SPONG JAQUELIN K

IPC: G11B23/087 ,  G11B15/60 ,  G11B15/665

Abstract: A magnetic tape drive 20 includes a tape path 21 having first and second reels 22 and 23 for a tape 1, a transducer head 24 and guides 10a, 10b and 10c for the tape. The guides 10a, 10b and 10c are pivotally mounted on axles 15a, 15b and 15c and the operation of the drive is controlled by a controller 25. Fach of the guides is a constrained pivot compound radius tape post. The post is mounted on an axle which allows it to pivot when the tape changes direction. The pivoting action serves to peel away all tape which has been in stationary contact with the post, thereby reducing startup stiction. Above a certain pivotation angle the post is prevented from further pivotation either by a fixed stop or by torque exerted on the post by the tape which is under tension.