Claims
- 1. A magnetic head having a pair of magnetic core halves, and a winding slot for placing a coil therein, said core halves facing and unified to each other, said core having thin magnetic metal films interposed in-between, and in which a magnetic gap is formed between facing surfaces of the magnetic core halves, the improvement comprising:
- said winding slot having opposing sidewalls each partially overlaid by one of said magnetic films, one of said sidewalls having a bend for bending one of said thin magnetic metal films into an acute angle when seen in cross-section in a plane perpendicular to a track width direction of said magnetic gap;
- said respective other sidewall also comprises a bend for bending a respective other of said thin magnetic metal films into an acute angle when seen in cross-section in said plane perpendicular to said track width direction of said magnetic gap;
- a protrusion formed on each of said sidewalls facing inwardly and each protrusion contiguous to one of said bends, said protrusions comprising cantilever ridges extending into said winding slot from said sidewalls;
- said protrusions each have an acute angle when seen in said cross-section;
- said bend is formed on an inclined section of said sidewall; and
- an angle of inclination of the inclined section of said wall is 20.degree. to 70.degree. with respect to a depth direction of the magnetic gap.
Priority Claims (2)
Number |
Date |
Country |
Kind |
6-290494 |
Oct 1994 |
JPX |
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6-290495 |
Oct 1994 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/551,040 filed Oct. 31, 1995, now U.S. Pat. No. 5,640,291.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4393428 |
Fujimura |
Jul 1983 |
|
4794483 |
Naitoh et al. |
Dec 1988 |
|
5276575 |
Kobayashi et al. |
Jan 1994 |
|
5373408 |
Bischoff et al. |
Dec 1994 |
|
Foreign Referenced Citations (3)
Number |
Date |
Country |
A-02 466 159 |
Jan 1992 |
EPX |
A-01 496 201 |
Jul 1992 |
EPX |
A-01 4022318 |
Jul 1989 |
DEX |
Continuations (1)
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Number |
Date |
Country |
Parent |
551040 |
Oct 1995 |
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