| 摘要 |
PURPOSE:To increase the lifetime of a magnetic recording/reproducing device by using a ferrite head having high wear resistance to the head which breaks in advance into the part where contact starts between a tape and a head and setting a ''Sendust'' head having low wear resistance immediately after the ferrite head. CONSTITUTION:As shown in the figure, recording ''Sendust'' heads 10 and 11 are set approximately to reproducing ferrite heads 12 and 13. A rotary member 15 revolves toward an arrow 17, and a tape 14 is driven at a constant speed toward an arrow 16. For this VTR the heads 12 and 13 having high wear resistance are used for the heads which break in advance into the part where the contacts start between the tape 14 and heads 10-13, and the heads 10 and 11 having low wear resistance are set immediately after the heads 12 and 13. In such a constitution, the heads 10 and 11 can be protected from the wear that is caused when they break into the part where contact starts between a tape and a head. Thus defective contact is eliminated between the tape and the head, and the recording/reproducing of high quality is possible. |
