JPH0618052B2 - Magnetic head manufacturing method - Google Patents
Magnetic head manufacturing methodInfo
- Publication number
- JPH0618052B2 JPH0618052B2 JP60085526A JP8552685A JPH0618052B2 JP H0618052 B2 JPH0618052 B2 JP H0618052B2 JP 60085526 A JP60085526 A JP 60085526A JP 8552685 A JP8552685 A JP 8552685A JP H0618052 B2 JPH0618052 B2 JP H0618052B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- head
- magnetic head
- reproducing
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は一つのホルダーに記録ヘッドと再生ヘッドを設
けた磁気ヘッドの製造方法に関する。The present invention relates to a method of manufacturing a magnetic head in which a recording head and a reproducing head are provided in one holder.
従来データレコーダなどのテープへデジタル信号を記録
・再生するために用いるリードアフターライト磁気ヘッ
ドは第１０図、第１１図のように非磁性材のホルダー１
４に記録ヘッドコア１５と再生ヘッドコア１６が個別に
固定されると共に両ヘッドコアギャップ１７、１８の幅
の中心１２、１３が一致することが厳しく要求され、更
に両ヘッドコア間にはクロストークを防止するためにシ
ールド材８を入れる必要があった。A read-after-write magnetic head used for recording / reproducing a digital signal on a tape of a conventional data recorder is a holder 1 made of a non-magnetic material as shown in FIGS. 10 and 11.
4, the recording head core 15 and the reproducing head core 16 are individually fixed, and it is strictly required that the centers 12 and 13 of the widths of both head core gaps 17 and 18 coincide with each other. Further, crosstalk between both head cores is prevented. Therefore, it was necessary to insert the shield material 8.
しかし、上記中心を一致させることは難しく、記録ヘッ
ドコア固定用の溝と再生ヘッドコア固定用の溝の加工は
加工精度の高いＮＣ加工機等を用いてなされているので
非常に高価になる欠点がある。However, it is difficult to make the centers coincide with each other, and the grooves for fixing the recording head core and the grooves for fixing the reproducing head core are processed by using an NC processing machine or the like having high processing accuracy, which is very expensive. .
本発明は上記欠点に鑑み、記録ヘッドコアと再生ヘッド
コアのギャップの幅の中心が容易に一致できて性能を向
上すると共に、ヘッドコアの磁気特性を確保し、両ヘッ
ドコア間にシールド材が容易に挿入できて充分なシール
ド効果を発揮できる磁気ヘッドの製造方法を提案するこ
とである。In view of the above drawbacks, the present invention can easily match the centers of the gap widths of the recording head core and the reproducing head core to improve the performance, secure the magnetic characteristics of the head core, and easily insert the shield material between both head cores. The present invention is to propose a method of manufacturing a magnetic head that can exert a sufficient shield effect.
本発明は、記録磁気ギャップを備えた記録ヘッドコアと
再生磁気ギャップを備えた再生ヘッドコアとを、それぞ
れの磁気ギャップが互に平行になるように一体的に磁気
ヘッドブロック体として形成し、該磁気ヘッドブロック
体の側面を両ヘッドコアの巻線部分には重ならず両ヘッ
ドコアの中間部分よりも底方向に連結部分が臨む非磁性
体のホルダーに固着したのち、該ホルダーの連結部分を
残して上記記録ヘッドコアと再生ヘッドコアとの中間部
分を切断して溝を形成し、該溝にシールド材を配設する
ようにしたことにある。According to the present invention, a recording head core having a recording magnetic gap and a reproducing head core having a reproducing magnetic gap are integrally formed as a magnetic head block body so that the respective magnetic gaps are parallel to each other. The side surface of the block body is fixed to a non-magnetic holder that does not overlap the winding portions of both head cores and faces the connecting portion in the bottom direction rather than the middle portion of both head cores. The intermediate part between the head core and the reproducing head core is cut to form a groove, and the shield material is arranged in the groove.
以下、図示の実施例で本発明を説明する。第１図は本製
造方法で製作された磁気ヘッドで、２個のセラミック等
の非磁性材から成るホルダー１、１間に、磁気ギャップ
４、５が互いに平行で夫々に巻線１０、１１を設けた記
録ヘッドコア２と再生ヘッドコア３を有しフェライト材
等で一体に成形した磁気ヘッドブロック体６が、巻線１
０、１１が露呈した状態で挟持固着され、ホルダー１、
１は連結部分でつながった状態で両ヘッドコア２、３間
の磁気ヘッドブロック体６のみが切断されて、ホルダー
１、１の溝１ａ、１ａおよび両磁気ヘッド間にセラミッ
ク等の非磁性材７、７で挟まれたパーマロイ等のシール
ド材８が固着されている。夫々のヘッドコア４、５は巻
線１０、１１を設けた環状になっている。Hereinafter, the present invention will be described with reference to the illustrated embodiments. FIG. 1 shows a magnetic head manufactured by this manufacturing method, in which magnetic gaps 4 and 5 are parallel to each other between two holders 1 and 1 made of a non-magnetic material such as ceramics and windings 10 and 11, respectively. The magnetic head block 6 having the recording head core 2 and the reproducing head core 3 provided therein and integrally formed of a ferrite material or the like is
0 and 11 are pinched and fixed in the exposed state, and holder 1,
1, the magnetic head block body 6 between both head cores 2 and 3 is cut in a state where the head cores 2 and 3 are connected to each other, and a non-magnetic material 7 such as ceramics between the grooves 1a and 1a of the holders 1 and 1 and both magnetic heads A shield material 8 such as permalloy sandwiched between 7 is fixed. Each of the head cores 4 and 5 has an annular shape provided with windings 10 and 11.
上記ホルダー１、１には第２図のように溝１ａ、１ａが
形成され、溝底となる連結部分は磁気ヘッドブロック体
６の中間部分と重ならない位置に設けてあって、連結部
分を残した状態で磁気ヘッドブロック体６を溝１ａ、１
ａと連通するように切断できるようになっている。Grooves 1a and 1a are formed in the holders 1 and 1 as shown in FIG. 2, and the connecting portion which is the groove bottom is provided at a position which does not overlap with the intermediate portion of the magnetic head block body 6 and leaves the connecting portion. The magnetic head block body 6 with the grooves 1a, 1
It can be cut so as to communicate with a.
上記記録ヘッドコア２の記録磁気ギャップ４は第３図、
第４図のように幅広に、再生ヘッドコア３の再生磁気ギ
ャップ５は切欠き９、９によって幅狭に形成され、夫々
のコアに巻線１０、１１が設けてある。The recording magnetic gap 4 of the recording head core 2 is shown in FIG.
As shown in FIG. 4, the reproducing magnetic gap 5 of the reproducing head core 3 is formed narrow by the notches 9 and 9, and windings 10 and 11 are provided on the respective cores.
上記磁気ヘッドが製造される時は、第３図の磁気ヘッド
ブロック体６が、第２図のように巻線部分が重ならず、
下方（連結部分）が突出したホルダー１、１で挟持され
て接着剤等で固着され、第５図のように磁気ヘッドブロ
ック体６が溝１ａの幅に沿って中間部分が研削され、磁
気ヘッドコア２、３間の磁束を遮断するために切断部６
ａで切断して分離される。When the magnetic head is manufactured, the magnetic head block body 6 of FIG. 3 does not overlap the winding portion as shown in FIG.
The lower portion (connecting portion) is sandwiched by the protruding holders 1 and 1 and is fixed by an adhesive or the like, and the magnetic head block body 6 is ground along the width of the groove 1a as shown in FIG. The cutting portion 6 for cutting off the magnetic flux between the two and three
It is cut by a and separated.
この切断部６ａと溝１ａには非磁性材７、７で挟まれた
シールド材８が嵌合固着されて第１図、第４図の磁気ヘ
ッドが製造される。A shield material 8 sandwiched between non-magnetic materials 7 and 7 is fitted and fixed to the cut portion 6a and the groove 1a to manufacture the magnetic head shown in FIGS.
このように磁気ヘッドが製造されると磁気ヘッドブロッ
ク体６は当初第２図、第３図のように記録ヘッドコア２
と再生ヘッドコア３が中間部分でつながっているので記
録ヘッドコア２の記録磁気ギャップ４と再生ヘッドコア
３の再生磁気ギャップ５が極めて容易に互いに平行とす
ることができる。When the magnetic head is manufactured in this way, the magnetic head block body 6 is initially set to the recording head core 2 as shown in FIGS.
Since the reproducing head core 3 and the reproducing head core 3 are connected at the intermediate portion, the recording magnetic gap 4 of the recording head core 2 and the reproducing magnetic gap 5 of the reproducing head core 3 can be made extremely parallel to each other very easily.
かつ、記録ヘッドコア２の幅広の記録磁気ギャップ４の
幅の中心１２と再生ヘッドコア３の幅狭の再生磁気ギャ
ップ５の幅の中心１３は容易に一致させられる。Moreover, the center 12 of the width of the wide recording magnetic gap 4 of the recording head core 2 and the center 13 of the width of the narrow reproducing magnetic gap 5 of the reproducing head core 3 can be easily matched.
従って、従来のようにホルダーに記録ヘッドコア固定用
の溝と再生ヘッドコア固定用の溝を加工精度を高く厳密
に形成する必要がないので、磁気ヘッドの製造が容易で
あると共に安価に磁気ヘッドを製造することができる。Therefore, since it is not necessary to form the groove for fixing the recording head core and the groove for fixing the reproducing head core in the holder with high processing precision as in the conventional case, the magnetic head can be manufactured easily and at low cost. can do.
そして、ホルダー１、１は両磁気ヘッドコアの巻線部分
には重ならないようにしたので、各ヘッドコア４、５は
環状にできて、磁束の漏洩が防止でき磁気特性の良い磁
気ヘッドとなる。Since the holders 1 and 1 are not overlapped with the winding portions of both magnetic head cores, the head cores 4 and 5 can be formed in an annular shape, and magnetic flux can be prevented from leaking, resulting in a magnetic head having good magnetic characteristics.
第６図から第８図は磁気ヘッドブロック体６の変形例
で、第６図では溝部６ｂの下側となる細い中間部分がつ
ながり、ホルダー１、１に挟持固着されて切断部６ａが
形成される時に磁気ヘッドブロック体６の細い中間部分
を研削すればよいので研削量を少なくすることができ
る。第７図では溝部６ｃ、６ｄがＨ字状に形成されて上
下方向の途中に細い中間部分を設けてあり、第８図では
深い溝部６ｅの底を細い中間部分としてあるので、同様
に研削量を少なくできる。6 to 8 show a modified example of the magnetic head block body 6, in which the thin intermediate portion which is the lower side of the groove portion 6b is connected and is sandwiched and fixed to the holders 1 and 1 to form the cut portion 6a. Since the thin middle portion of the magnetic head block body 6 may be ground when the magnetic head block body 6 is cut, the grinding amount can be reduced. In FIG. 7, the groove portions 6c and 6d are formed in an H shape and a thin intermediate portion is provided in the middle of the vertical direction, and in FIG. 8, the bottom of the deep groove portion 6e is a thin intermediate portion. Can be reduced.
このように、ホルダーは２つの磁気ヘッドコアのつなが
り部分（中間部分）以外の位置に連結部分を設け、かつ
各コアの巻線部分が重ならない形状としたので、一体の
磁気ヘッドブロック体の状態でホルダーに挟持固着して
おいて、ホルダーは一体を維持して磁気ヘッドブロック
のみ２つの磁気ヘッドコアに切断分離することができ
て、本発明の目的を達成することができる。In this way, the holder is provided with the connecting portion at a position other than the connecting portion (intermediate portion) of the two magnetic head cores, and the winding portion of each core does not overlap, so that the magnetic head block body is integrated. The object of the present invention can be achieved because the holder can be held and fixed to the holder and the holder can be kept integral and only the magnetic head block can be cut and separated into two magnetic head cores.
上記説明では、再生ヘッド３の再生磁気ギャップ５を切
欠き９で幅狭に形成したが、第９図のように記録磁気ギ
ャップ４と同一の幅に形成してもよい。In the above description, the reproducing magnetic gap 5 of the reproducing head 3 is narrowly formed by the notch 9, but it may be formed in the same width as the recording magnetic gap 4 as shown in FIG.
本発明は上述のように構成したから、極めて簡単容易に
記録ヘッドコアと再生ヘッドコアの夫々の磁気ギャップ
が互いに平行になると共に磁気ギャップの中心が一致し
て性能が向上され、夫々の磁気ヘッドコアは環状となっ
て磁気特性が良く、製造が容易で安価に磁気ヘッドが提
供できると共に、シールド材でクロストークが防止され
る等優れた効果を奏する磁気ヘッドの製造方法を提供す
ることができる。Since the present invention is configured as described above, the magnetic gaps of the recording head core and the reproducing head core are parallel to each other and the centers of the magnetic gaps are aligned to improve the performance very easily and easily. Thus, it is possible to provide a magnetic head which has good magnetic characteristics, is easy to manufacture, and is inexpensive, and it is also possible to provide a method of manufacturing a magnetic head having excellent effects such as prevention of crosstalk by a shield material.
図面は本発明の実施例が示され、第１図は磁気ヘッドの
外観斜視図、第２図はホルダーに磁気ヘッドブロック体
が挟持固着された外観斜視図、第３図は磁気ヘッドブロ
ック体の外観斜視図、第４図は第１図の平面図、第５図
はホルダーに磁気ヘッドブロック体が挟持固着されて磁
気ヘッドブロック体の中間部分が切断された外観斜視
図、第６図は溝部が形成された磁気ヘッドブロック体の
外観斜視図、第７図、第８図は磁気ヘッドブロック体の
溝部の変形例外観斜視図、第９図は再生磁気ギャップを
幅広に形成した磁気ヘッドの変形例外観斜視図、第１０
図は従来の磁気ヘッドの外観斜視図、第１１図は同平面
図である。 １……ホルダー、２……記録ヘッドコア、３……再生ヘ
ッドコア、４……記録磁気ギャップ、５……再生磁気ギ
ャップ、６……磁気ヘッドブロック体、８……シールド
材An embodiment of the present invention is shown in the drawings, FIG. 1 is an external perspective view of a magnetic head, FIG. 2 is an external perspective view in which a magnetic head block body is sandwiched and fixed to a holder, and FIG. 3 is a magnetic head block body. FIG. 4 is an external perspective view, FIG. 4 is a plan view of FIG. 1, and FIG. 5 is an external perspective view in which a magnetic head block body is sandwiched and fixed to a holder and an intermediate portion of the magnetic head block body is cut, and FIG. 6 is a groove portion. FIG. 7 and FIG. 8 are external perspective views of a magnetic head block body in which a groove is formed, FIG. 7 and FIG. 8 are external perspective views of modified examples of grooves of the magnetic head block body, and FIG. Example appearance perspective view, 10th
FIG. 11 is an external perspective view of a conventional magnetic head, and FIG. 11 is a plan view of the same. 1 ... Holder, 2 ... Recording head core, 3 ... Reproducing head core, 4 ... Recording magnetic gap, 5 ... Reproducing magnetic gap, 6 ... Magnetic head block body, 8 ... Shielding material
Claims (1)
と再生磁気ギャップを備えた再生ヘッドコアとを、それ
ぞれのギャップが平行になるように一体的に磁気ヘッド
ブロック体として形成し、該磁気ヘッドブロック体の側
面を両ヘッドコアの巻線部分には重ならず両ヘッドコア
の中間部分よりも底方向に連結部分が臨む非磁性材のホ
ルダーに固着したのち、該ホルダーの連結部分を残して
上記記録ヘッドコアと再生ヘッドコアとの中間部分を切
断して溝を形成し、該溝にシールド材を配設した磁気ヘ
ッドの製造方法。1. A recording head core having a recording magnetic gap and a reproducing head core having a reproducing magnetic gap are integrally formed as a magnetic head block body so that the respective gaps are parallel to each other, and the magnetic head block body is formed. The side surface of the recording head core is fixed to a holder made of a non-magnetic material that does not overlap the winding portions of both head cores and faces the connecting portion in the bottom direction more than the middle portion of both head cores, and leaves the connecting portion of the holder and the recording head core. A method of manufacturing a magnetic head, wherein a groove is formed by cutting an intermediate portion with a reproducing head core, and a shield material is arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60085526A JPH0618052B2 (en) | 1985-04-23 | 1985-04-23 | Magnetic head manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60085526A JPH0618052B2 (en) | 1985-04-23 | 1985-04-23 | Magnetic head manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61246905A JPS61246905A (en) | 1986-11-04 |
| JPH0618052B2 true JPH0618052B2 (en) | 1994-03-09 |
Family
ID=13861338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60085526A Expired - Lifetime JPH0618052B2 (en) | 1985-04-23 | 1985-04-23 | Magnetic head manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618052B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5564627A (en) * | 1978-11-10 | 1980-05-15 | Hitachi Ltd | Manufacture of multi-element magnetic head |
| JPS55163622A (en) * | 1979-06-06 | 1980-12-19 | Hitachi Ltd | Multielement magnetic head |
-
1985
- 1985-04-23 JP JP60085526A patent/JPH0618052B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61246905A (en) | 1986-11-04 |
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