| 摘要 |
PURPOSE:To attain reduction in friction of a press contact face and running of a tape in a flat state by providing a tape running guide comprising a step section where a lower edge of a magnetic tape is pressed into contact with a fixed drum and a tape guide section pressed into contact with a side face only near the lower ridge of the magnetic tape. CONSTITUTION:A signal is reproduced and recorded in the helical scanning system on the magnetic tape 4 by a turning upper drum 1 provided with a fixed lower drum 10 and a rotary magnetic head 3. The tape running guide 11 is provided to the drum 10 and the guide 11 has a step 12, the tape guide section 13, a slope section 14 and the tape running face section 15. The lower edge of the tape 4 is pressed into contact with the step 12 so as to guide the tape 4 and the guide section 13 is formed as a cylindrical face and guides the tape 4 while the side face only near the lower ridge of the tape 4 is pressed into contact. An outer diameter of the running face part 15 is smaller than the outer diameter of the guide section 13, and a space layer 16 is produced between the tape 4 and the running face section 15 and the tape 4 is run not in contact with the running face part 15 or with a light load. Thus, the friction of the press contact face is decreased and the magnetic tape is run in the flat state.
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