Magnetic head and recording/reproducing apparatus having abrasiv

Details Magnetic head and recording/reproducing apparatus having abrasiv Magnetic head and recording/reproducing apparatus having abrasiv

1998-06-30

2000-06-13

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

36013021, G11B 5187, G11B 1560

Patent

active

060756802

ABSTRACT:
In a magnetic head having a recording and/or reproducing portion for recording and/or reproducing a signal on/from a magnetic tape and arranged in such a manner that the recording and/or reproducing portion of the magnetic head is made in contact with an edge portion of the magnetic tape along a width direction of the magnetic tape, the recording and/or reproducing portion of the magnetic head is comprised of: a magnetic core for recording and/or reproducing the signal on/from the magnetic tape while being made in contact with the magnetic tape; a first slider made of a material having an abrasion characteristic lower than that of the magnetic core, for being slid on the edge portion of the magnetic tape along the width direction thereof; and a second slider made of a material having an abrasion characteristic higher than that of the magnetic core, and arranged between the magnetic core and the first slider. As a consequence, while the better sliding condition between the fixed magnetic head and the magnetic tape can be maintained for a long time period, the lifetime of the fixed magnetic head can be considerably increased. Furthermore, even when the tape tension of the magnetic recording and/or reproducing apparatus is different from each other, the same material combination of the magnetic core, the slider, and the sub-slider can be used.

REFERENCES:
patent: 5781383 (1998-07-01), Strand

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