| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the fall-off of a tape from a tape lead due to the vibration, impact, etc., and to stabilize the running of the tape at the time right after the running of tape by providing a tape fall-off preventing means for preventing the fall-off of the magnetic tape from a tape guide means. SOLUTION: The tape fall-off preventing means 14 is formed integrally with the main body of a fixed drum 10 and provided consecutively to the outer periphery of the fixed drum 10. When it is formed by the molding using a mold, a plastics having the dimensional stability such as PPS, is used for the material, or it is provided partially in such degree that the magnetic tape 12 does not fall out from the tape lead 11. Or, the tape fall-off preventing means 14 is made out as a separate component so as to mount it on the fixed drum 10 by a screw, etc. By this arrangement, the fall-off of the tape from the tape lead is prevented when the mechanism does not operate on the tape lead provided on the fixed drum of the rotary head drum device.</p> |
