BANDANTRIEBSMECHANISMUS

A tape drive mechanism for a video tape recorder and an audio tape recorder. The tape drive mechanism automatically corrects the position in the direction of width of the running tape without mechanically restricting the edge of tape. Sensors (8) and (8) on a tape path detect change of position from a reference running position that may develop in the direction of width of the tape (7), a tape guide post (1) for attracting the tape (7) is moved in the direction of width of the tape, or inclination of a tape guide post (41) is changed to move the tape (7) in the direction of width being driven by actuators (2), (42) and (62) that give corresponding displacement based on the values detected by the sensors (8) and (8), or the reel plate (57) is moved in the direction of width of tape to move the tape (7) together with the reel (24). The tape (7) having a small thickness is suppressed from moving up and down on the tape path and is permitted to run stably without being damaged on the edges.