| 摘要 |
In a magnetic recording and/or reproducing system, for example, a video tape recorder of the type in which, during recording or reproducing, the magnetic tape is wrapped about a guide drum to a predetermined angular extent and is longitudinally advanced while a rotated magnetic head traverses the tape in skew or oblique tracks thereacross, a device is provided for automatically wrapping the tape about the guide drum at the initiation of the recording or reproducing operation. Such device for wrapping the tape about the guide drum is controlled to avoid its repeated operation in the event of successive recording or reproducing operations. Further, in the event of rewinding of the tape, or opening of a cover or lid provided for the tape recorder, the device automatically unwraps the tape from about the guide drum. |
