JPH01276420A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPH01276420A
JPH01276420A JP10480788A JP10480788A JPH01276420A JP H01276420 A JPH01276420 A JP H01276420A JP 10480788 A JP10480788 A JP 10480788A JP 10480788 A JP10480788 A JP 10480788A JP H01276420 A JPH01276420 A JP H01276420A
Authority
JP
Japan
Prior art keywords
core
slider
magnetic
ski
reinforcing material
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.)
Pending
Application number
JP10480788A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Miyasaka
宮坂 善之
Masami Murai
正己 村井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP10480788A priority Critical patent/JPH01276420A/en
Publication of JPH01276420A publication Critical patent/JPH01276420A/en
Pending legal-status Critical Current

Links

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To cause the flatness of a ski surface to be satisfactory and to stabilize a floating attitude by causing the width of an inserting channel in the recording medium facing surface side of a slider, which is composed of a non- magnetic substance, to be smaller than the thickness of a magnetic core and simultaneously inserting the magnetic core and a slider reinforcing material. CONSTITUTION:The width of a core inserting channel 2 in a slider body 1 is smaller than the thickness of a magnetic core 3 and the core 3 to be exposed on a ski surface 5 is only a track part 6. Then, a glass member is almost never exposed. In a back side, a slider reinforcing material 8 is inserted and fixed together with the core 3. When the back side of this slider body 1 and ski surface 5 are ground for finishing, an exposing area to the recording medium facing surface side of the glass member can be made extremely small. A core chip is regulated on the step difference surface of the core inserting channel 2 and position accuracy is improved. By simultaneously inserting the slider reinforcing material 8, warping and deformation due to working strain is eliminated and the flatness of the ski is made satisfactory. Then, the floating attitude is widely improved.

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は、磁気記録、再生装置に用いられる磁気ヘッド
に関する。 〔従来の技術〕 従来、第2図(a)に示すようにスライダ一体1にコア
挿入溝2を設け、前記コア挿入溝22へ第2図(b)に
示す磁気コア3を挿入し、第2図(C)に示すようにガ
ラス部材4を用いて、スライダ一体lと磁気コア3が一
体化された構造の磁気ヘッドが知られていた。
[Industrial Application Field] The present invention relates to a magnetic head used in a magnetic recording/reproducing device. [Prior Art] Conventionally, as shown in FIG. 2(a), a core insertion groove 2 is provided in the slider unit 1, and a magnetic core 3 shown in FIG. 2(b) is inserted into the core insertion groove 22. As shown in FIG. 2(C), a magnetic head having a structure in which an integrated slider 1 and a magnetic core 3 are integrated using a glass member 4 has been known.

【発明が解決しようとする課題】[Problem to be solved by the invention]

しかし、従来の磁気ヘッドは、スライダ一体1のスキー
面5にスライダ一体1より柔軟なガラス部材4があるた
め、磁気ヘッドが記録媒体上を摺動する時にガラス部材
4の表面が削れて記録媒体上に摺動痕を作る原因となっ
ている。又ガラス部材4は耐候性に劣り、ガラス部材4
の変質をおこし長期信頼性を欠いていた。その上、スキ
ー面5の仕上げ加工の時、加工歪により平坦度が悪くな
り浮上姿勢が悪化するという問題点を有していた。 そこで、本発明は、従来のこのような問題点を解決する
ため、磁気ヘッドの浮上姿勢が安定し、磁気ヘッドと記
録°媒体上に、摺動痕を発生させない上に耐候性に優れ
た信頼性の高い磁気ヘッドを得ることを目的としている
。 〔課題を解決する為の手段] 上記問題点を解決するために、本発明の磁気ヘッドは、
磁気コアを非磁性材からなるスライダーのコア挿入溝に
挿入し、ガラス部材で結合する磁気ヘッドにおいて、記
録媒体対向面側の前記コア挿入溝の巾が、前記磁気コア
の厚みより小さくし、スライダー補強材を同時に挿入す
ることを特徴とする。 [実 施 例] 以下に本発明の実施例を図面にもとすいて説明する。第
1図(a)において、スライダ一体lのコア挿入溝2の
巾が磁気コア3の厚みより小さく形成されていて、スキ
ー面5へ露出している磁気コア3は、前記磁気コア3の
トラック部6のみであり、ガラス部材はほとんどスキー
面5へ露出していない、又、第1図(b)は、スライダ
一体1を裏面側より斜視した図であり、スキ一部7の中
に磁気コア3と共にスライダー補強材8が挿入固定され
ている。 次に第3図において本発明の磁気ヘッドの製造工程を説
明する。第3図(a)において、スライダ一体1の裏面
側よりスキ一部7へ磁気コアの厚みに対応した巾のコア
挿入溝9を砥石加工により形成する0次に第3図(b)
に示すように、コア挿入溝9の中心へ、スキー面5へか
けて磁気コアのトラック厚みに対応した巾のコア挿入溝
2を同じく砥石加工により形成する。その後、第3図(
C)のように、スライダ一体1を裏面を下側にして既公
知の方法で作成された磁気コア3の底面からアペックス
までの寸法もしくは、表面からアペックスまでの寸法を
事前に正確に測定しておき、スライダ一体1のコア挿入
溝9とコア挿入溝2へ挿入する0次にスライダ一体1と
同材質であり、かつコア挿入溝9に対応したサイズのス
ライダー補強材8を前記挿入の磁気コア3の横へ並べて
コア挿入溝9へ挿入し第3図(d)とする1次いで、第
3図(d)の状態において、スライダー体lと磁気コア
3及びスライダー補強材8を結合すべくアルミナ系無機
接着剤をコア挿入溝9と磁気コア3及びスライダー補強
材8の両側の隙間へ流し込み一体化する0次に第3図(
e)のようにスキー面5を上にして、ガラス部材4をコ
ア挿入溝2の上へ設置して炉の中で加熱溶融する。この
時、ガラス部材4は溶融して磁気コア3とコア溝2の隙
間へ毛細管現象により流れ込み磁気コア3とスライダ一
体1を結合し、かつ隙間を無(す。 以上により形成されたスライダ一体lの裏面側とスキー
面5を仕上げ研磨して、すでに測定済みの磁気コア3の
アペックス寸法により規定ギャップデプス位置までスキ
ー面5を追い込むと第1図に示した本発明の磁気ヘッド
となり、ガラス部材4の記録媒体対向面側への露出面積
を非常に小さくすることが可能となる。又、コアチップ
がコア挿入溝2とコア挿入溝9の段差面で規正されるた
めに、コアチップが傾斜して結合されることがなくなり
位置精度が向上する効果がある。 又、スライダー補強材8の使用により、スキー面5の仕
上げ研磨を行なってもスキ一部7の加工によるソリ、変
形がなくなった。スライダー補強材としては、スライダ
一体1と同材質以外に、例えば、チタンカルシウム、チ
タンバリウム、ジルコニア、アルミナ、炭化ケイ素、窒
化ケイ素、スタアクィト等使用しても全く同様の効果が
得られた。 第4図は、かかる本発明の他の実施例を示す図である。 磁気コア3のサイズをスライダー補強材を含んだサイズ
に形成しスライダ一体1のコア挿入溝9及び2へ設置し
以下前記実施例の説明と同様に加工しても何ら問題のな
い磁気ヘッドとなり、同様の効果が得られた。又スライ
ダー補強材を同時に加工できるので加工能率も向上し、
磁気へラドコア3の挿入溝9及び2の部分への挿入も作
業性が向上する効果が得られた。 〔発明の効果〕 本発明は以上説明したように、記録媒体対向面側のコア
挿入溝の巾を磁気コアの厚みより小さくするという簡単
な構造によって柔軟なガラス部材の露出が非常に少な(
なり、ガラス部材の表面削れによる摺動痕もな(なり耐
候性に対する長期信頼性が大幅に延びるという効果があ
る。又、スライダー補強材を、同時に挿入することによ
り、加工歪等によるソリ、変形がなくなりスキー面の平
坦度が良くなり、浮上姿勢が大巾に向上する効果がある
However, in the conventional magnetic head, since the ski surface 5 of the slider unit 1 has a glass member 4 that is more flexible than the slider unit 1, when the magnetic head slides over the recording medium, the surface of the glass member 4 is scraped and the recording medium is This causes scratches to be created on the surface. In addition, the glass member 4 has poor weather resistance.
This caused deterioration in the quality of the product, resulting in a lack of long-term reliability. In addition, when finishing the ski surface 5, there is a problem in that the flatness deteriorates due to processing distortion and the flying posture deteriorates. Therefore, in order to solve these conventional problems, the present invention has been developed to stabilize the flying posture of the magnetic head, to prevent the generation of sliding marks on the magnetic head and recording medium, and to provide a highly reliable and weather-resistant structure. The objective is to obtain a magnetic head with high performance. [Means for Solving the Problems] In order to solve the above problems, the magnetic head of the present invention has the following features:
In a magnetic head in which a magnetic core is inserted into a core insertion groove of a slider made of a non-magnetic material and coupled with a glass member, the width of the core insertion groove on the side facing the recording medium is made smaller than the thickness of the magnetic core, and the slider It is characterized by inserting the reinforcing material at the same time. [Examples] Examples of the present invention will be described below with reference to the drawings. In FIG. 1(a), the width of the core insertion groove 2 of the integrated slider l is formed to be smaller than the thickness of the magnetic core 3, and the magnetic core 3 exposed to the ski surface 5 is in the track of the magnetic core 3. 1 (b) is a perspective view of the slider unit 1 from the back side, and there is a magnetic A slider reinforcing member 8 is inserted and fixed together with the core 3. Next, the manufacturing process of the magnetic head of the present invention will be explained with reference to FIG. In FIG. 3(a), a core insertion groove 9 with a width corresponding to the thickness of the magnetic core is formed from the back surface side of the integrated slider 1 into the gap part 7 by grinding, as shown in FIG. 3(b).
As shown in FIG. 2, a core insertion groove 2 having a width corresponding to the track thickness of the magnetic core is formed from the center of the core insertion groove 9 to the ski surface 5 by grinding. After that, see Figure 3 (
As shown in C), accurately measure in advance the dimension from the bottom of the magnetic core 3 to the apex or the dimension from the surface to the apex, which is made by a known method with the slider unit 1 facing downward. Next, slider reinforcing material 8 made of the same material as the slider unit 1 and having a size corresponding to the core insertion groove 9 is inserted into the core insertion groove 9 and the core insertion groove 2 of the slider unit 1. 3 are placed side by side and inserted into the core insertion groove 9 as shown in FIG. 3(d). Next, in the state shown in FIG. The system inorganic adhesive is poured into the core insertion groove 9 and the gaps on both sides of the magnetic core 3 and slider reinforcing material 8 to integrate them.
As shown in e), with the ski surface 5 facing upward, the glass member 4 is placed on the core insertion groove 2 and heated and melted in a furnace. At this time, the glass member 4 melts and flows into the gap between the magnetic core 3 and the core groove 2 by capillary action, joining the magnetic core 3 and the slider unit 1 and eliminating the gap. Finish polishing the back side and the ski surface 5 and driving the ski surface 5 to the specified gap depth position according to the already measured apex dimension of the magnetic core 3, the magnetic head of the present invention shown in FIG. 1 is obtained, and the glass member 4 to the surface facing the recording medium can be made extremely small.Also, since the core chip is regulated by the step surface of the core insertion groove 2 and the core insertion groove 9, the core chip is not tilted. This has the effect of improving positional accuracy because the slider reinforcing material 8 is used, and even when the ski surface 5 is finished polished, there is no warpage or deformation due to processing of the ski part 7.Slider As the reinforcing material, in addition to the same material as the slider unit 1, for example, titanium calcium, titanium barium, zirconia, alumina, silicon carbide, silicon nitride, starquite, etc. were used, and exactly the same effect was obtained. is a diagram showing another embodiment of the present invention.The magnetic core 3 is formed to a size that includes the slider reinforcing material, and is installed in the core insertion grooves 9 and 2 of the integrated slider 1. Even when processed in the same way as described, the magnetic head was produced without any problems and the same effect was obtained.Also, since the slider reinforcement material could be processed at the same time, processing efficiency was improved.
Insertion of the magnetic helad core 3 into the insertion grooves 9 and 2 also had the effect of improving workability. [Effects of the Invention] As explained above, the present invention has a simple structure in which the width of the core insertion groove on the side facing the recording medium is made smaller than the thickness of the magnetic core, so that the exposure of the flexible glass member is extremely small (
There are no sliding marks caused by surface abrasion of the glass member (this has the effect of greatly extending the long-term reliability of weather resistance.In addition, by simultaneously inserting the slider reinforcing material, warping and deformation due to processing distortion, etc.) can be avoided. This has the effect of improving the flatness of the ski surface and greatly improving the flying posture.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(a)(b)は、本発明にかかる磁気ヘッドの斜
視図、第2図(a)(b)(c)は、従来の磁気ヘッド
の斜視図、第3図(a)〜(e)はこの発明にかかる磁
気ヘッドの製造工程を説明する斜視図であり、第4図は
、かかる発明の他の実施例を示す斜視図である。 1・・・スライダ一体 2・・・挿入溝 3・・・磁気コア 8・・・スライダー補強材 以上 5゜ メ1図(α) 弔11図(b) 潴2図(b) メ3凹(O−) 気う図(e)
FIGS. 1(a) and 1(b) are perspective views of a magnetic head according to the present invention, FIGS. 2(a), (b), and (c) are perspective views of a conventional magnetic head, and FIGS. 3(a) to 3(c) are perspective views of a conventional magnetic head. (e) is a perspective view illustrating the manufacturing process of the magnetic head according to the invention, and FIG. 4 is a perspective view showing another embodiment of the invention. 1...Slider integrated 2...Insertion groove 3...Magnetic core 8...Slider reinforcement material or more 5 degrees Diagram 1 (α) Diagram 11 (b) Diagram 2 (b) Me 3 concave ( O-) Qiu diagram (e)

Claims (1)

【特許請求の範囲】[Claims] 磁気コアを非磁性材から成るスライダーのコア挿入溝に
挿入し、ガラス部材で結合する磁気ヘッドにおいて、記
録媒体対向面側の前記コア挿入溝の巾が、前記磁気コア
の厚みより小さくし、スライダー補強材を同時に挿入す
ることを特徴とする磁気ヘッド。
In a magnetic head in which a magnetic core is inserted into a core insertion groove of a slider made of a non-magnetic material and coupled with a glass member, the width of the core insertion groove on the side facing the recording medium is made smaller than the thickness of the magnetic core, and the slider A magnetic head characterized by simultaneously inserting a reinforcing material.
JP10480788A 1988-04-27 1988-04-27 Magnetic head Pending JPH01276420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10480788A JPH01276420A (en) 1988-04-27 1988-04-27 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10480788A JPH01276420A (en) 1988-04-27 1988-04-27 Magnetic head

Publications (1)

Publication Number Publication Date
JPH01276420A true JPH01276420A (en) 1989-11-07

Family

ID=14390696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10480788A Pending JPH01276420A (en) 1988-04-27 1988-04-27 Magnetic head

Country Status (1)

Country Link
JP (1) JPH01276420A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0584671A1 (en) * 1992-08-28 1994-03-02 Minebea Co.,Ltd. Floating magnetic head
US5359479A (en) * 1992-06-12 1994-10-25 Applied Magnetics Corporation Magnetic head slider having a magnetic transducing element affixed to a slider body side surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5359479A (en) * 1992-06-12 1994-10-25 Applied Magnetics Corporation Magnetic head slider having a magnetic transducing element affixed to a slider body side surface
EP0584671A1 (en) * 1992-08-28 1994-03-02 Minebea Co.,Ltd. Floating magnetic head

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