| 摘要 |
PURPOSE:To improve wear resistance by forming nonmagnetic reinforcing parts having the same thickness as the thickness of the head part of head chips to the transverse side faces of said head parts and disposing nonmagnetic substrates respectively onto the head chips and the reinforcing parts in parallel with the plane on both sides of the plane inclusive of gas parts. CONSTITUTION:This magnetic head is formed by disposing the respective plate surfaces of magnetic cores 2, 20, 21, 22 to the plane inclusive of both the gap parts G1, G2 and joining the same by superposing the plate surfaces on each other. The reinforcing parts 53, 54 formed of sealing glass are disposed on both the right and left sides of the two head chips 25, 26. The nonmagnetic substrates 1, 10 are fixed to both the upper and lower sides to increase the strength over the entire part. The substrates 1, 10 are formed by using; for example, crystallized glass or MnO2-NiO ceramics. The overall width W' of the surface to make sliding contact with a recording medium in the case of a composite type magnetic head is larger by the width of both the reinforcing parts 53, 54 than the overall width W of the magnetic head. The surface to make sliding contact with the recording medium is thereby expanded and the wear resistance is improved by the expanded part of the reinforcing parts 53, 54 and the substrates 1, 10.
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