B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
352/21.32
B65H 27/00 (2006.01) B65H 23/032 (2006.01) G11B 15/60 (2006.01)
Patent
CA 1259695
TAPE GUIDE MECHANISM FOR DYNAMIC TRACKING CONTROL ABSTRACT OF THE DISCLOSURE A tape guide mechanism includes an edge-guide element extending radially from a central axis. A tape guide roller, rotatable about the central axis, is arranged for urging an advancing magnetic tape laterally in the direction of the edge-guide element, to maintain an edge of the tape perpendicular to and in continuous contact with the edge-guide element during tape transport movement. A piezoelectric actuator, preferably comprising a stack of flexing type bimorph elements responsive to a voltage signal relating to the direction and magnitude of a tape-tracking error, causes movement of the edge-guide element in a single composite direction having a first component which is perpendicular to the edge of the tape, and a second component, which is parallel to the tape edge. Thus, the tape is caused to move laterally in either direction for tracking control, in one direction under the influence of perpendicular movement of the edge-guide element toward the tape, and in the opposite direction under the urging of the guide roller, to follow perpendicular movement of the edge-guide element away from the tape.
504201
Datatape Incorporated
Gowling Lafleur Henderson Llp
LandOfFree
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