JPH0580722B2 - - Google Patents
Info
- Publication number
- JPH0580722B2 JPH0580722B2 JP26331984A JP26331984A JPH0580722B2 JP H0580722 B2 JPH0580722 B2 JP H0580722B2 JP 26331984 A JP26331984 A JP 26331984A JP 26331984 A JP26331984 A JP 26331984A JP H0580722 B2 JPH0580722 B2 JP H0580722B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- core
- sliders
- cores
- magnetic head
- 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
- 239000000696 magnetic material Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
- G11B5/2651—Manufacture
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4826—Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は例えばフロツピーデイスク装置に用
いられる磁気ヘツドの製造方法に関する。
〔発明の技術的背景〕
従来、この種の磁気ヘツドは第４図ａ，ｂ，ｃ
に示すように磁気ヘツドコア１が磁性体コア２及
び３をガラス４で接着して記録・読取り用のギヤ
ツプ５を形成した第１のコア６と磁性体コア７及
び８をガラス９で接着して消去用のギヤツプ１０
Ａ，１０Ｂを形成した第２のコア１１とをガラス
あるいは有機系等の非磁性接着剤１２で接着して
形成される。そして、上記磁気ヘツドコア１は両
側部にセラミツク等の非磁性体スライダー１３，
１４が接着され、その上面部には図示しない磁気
記録媒体に摺接する摺動面１５が形成される。ま
た、上記磁気ヘツドコア１はその基部において、
第１のコア６の一方の磁性体コア２が記録・読取
り用のコイル１６に遊貫されて、その端部が他方
の磁性体コア３にシヨートバー１７を介して接続
され、かつ第２のコア１１の一方の磁性体コア７
が消去用のコイル１８に遊貫されて、その端部が
他方の磁性体コア８にシヨートバー１９を介して
接続され、各閉磁路を形成するようになつてい
る。
〔背景技術の問題点〕
ところが、上記磁気ヘツドでは強度的に非常に
弱い第１のコア６及び第２のコア１１の基部に対
してシヨートバー１７及び１９を接着する構成と
なつているので、その接着の際、均一的に加工す
ることが困難なために、接着層ΔSが生じ、コア
効率を低下させるという問題を有している。ま
た、これによれば、その構成が複雑で、しかも強
度的に弱いために、取扱い性が悪く、製作の際
に、破損を招く虞れがあり、その製作性が非常に
悪いという問題を有している。
〔発明の目的〕
この発明は上記の事情に鑑みてなされたもの
で、簡易な構成で、しかも製作性の向上に寄与し
得、かつ可及的にコア効率の向上に寄与し得る磁
気ヘツドの製造方法を提供することを目的とす
る。
〔発明の概要〕
すなわち、この発明は非磁性体に凹部を形成し
て、この凹部に磁性体を付着せしめ、この非磁性
体を分割して一端部に前記磁性体で形成されるシ
ヨートバーを有した断面略コ形状の非磁性体スラ
イダーを形成し、この非磁性体スライダーを２個
用いて磁性体コア及びコイルを挟装することによ
つて、所期の目的を達成したものである。
〔発明の実施例〕
以下、この発明の実施例について図面を参照し
て詳細に説明する。
第１図はこの発明の一実施例に係る磁気ヘツド
の製造方法による磁気ヘツドを示すもので、図中
２０は磁気ヘツドコアである。この磁気ヘツドコ
ア２０は磁性体コア２１及び２２をガラス２３で
接着して記録・読取り用のギヤツプ２４が形成さ
れた第１のコア２５と磁性体コア２６及び２７を
ガラス２８で接着して消去用のギヤツプ２９，３
０が形成された第２のコア３１とを非磁性体接着
剤３２で接着して形成される。そして、上記磁気
ヘツドコア２０はその基部において、上記第１の
コア２５の一方の磁性体コア２１の一方端が記
録・読取り用のコイル３３に遊貫され、かつ上記
第２のコア３１の一方の磁性体コア２７の一方端
が消去用のコイル３４に遊貫された状態で、後述
するように製造される断面略コ字形状の一対の非
磁性体スライダー３５，３６が挟装するように接
着され、その前面部に図示しない磁気記録媒体に
摺接する摺動面５１が形成される。これら非磁性
体スライダー３５及び３６は各一端部にシヨート
バー３７及び３８が上記第１のコア２５の磁性体
コア２１，２２及び第２のコア３１の磁性体コア
２６，２７に対応して設けられている。そして、
これらシヨートバー３７及び３８は上記非磁性体
スライダー３５，３６の磁気ヘツドコア２０への
接着状態で、第１のコア２５における一方の磁性
体コア２１の一端と他方の磁性体コア２５との接
続及び第２のコア３１における一方の磁性体コア
２６の一端と他方の磁性体コア２７とを接続し、
それぞれ閉磁路を形成するようになつている。
次に、上記非磁性体スライダー３５，３６の製
造方法について説明する。
すなわち、非磁性体スライダー３５，３６は第
２図に示すような製造工程で製作されるもので、
まず同図ａに示すようにセラミツク等の非磁性体
３９の一方面にマスク４０を施こして、エツチン
グで凹部４１を形成し、この凹部４１に対して同
図ｂに示すようにパーマロイ等の磁性体４２をメ
ツキ、スパツタ、蒸着等で付着する。そして、上
記非磁性体３９は同図ｃに示すように、その磁性
体４２の両側部にそれぞれコイル逃げ用の溝部４
３，４４を形成して、その一方面の貼合せ面４５
及び磁性体４２を鏡面研磨した後、略４等分の図
中破線で示す位置で切断し、同図ｄに示すように
各一端部に上記シヨートバー３７，３８を構成す
る磁性体４２を有する断面略コ字形状の一対の非
磁性体スライダー３５，３６を２組形成する。
すなわち、上記磁気ヘツドは、取着構成する場
合、上述したように形成した一対の非磁性体スラ
イダー３５，３６を用いて第１及び第２のコア２
５，３１の各一方の磁性体コア２１及び２６をコ
イル３３及び３４に遊貫してなる磁気ヘツドコア
２０の両側部にそれぞれ挟装するように接着す
る。すると、この磁気ヘツドコア２０はその前面
部において、上記磁気記録媒体（図示せず）の摺
接する摺動面５１が形成されると共に、上述した
ように、第１及び第２のコア２５，３１の磁性体
コア２１と２２及び２６と２７とがそれぞれ上記
非磁性体スライダー３５，３６の各シヨートバー
３７，３８を介して接続されて閉磁路が構成さ
れ、その製作組立てを完了する。
このように、上記磁気ヘツドの製造方法は略コ
字形状の非磁性体スライダー３５，３６に対して
一体的にシヨートバー３７，３８を形成し、これ
ら非磁性体スライダー３５，３６を用いて磁気ヘ
ツドコア２０を挟装するように、その両側部に接
着構成したので、その構造が箱形となるため、効
果的に強度が向上されて堅牢となるもので、接着
の際、均一的な加圧が可能となるので、接着精度
が向上され、コア効率を向上し得る。また、これ
によれば、その構造が堅牢となることで、製作の
際の取扱い性が向上されるので、その製作性の向
上にも寄与し得るものである。
また、この発明は上記実施例では非磁性体スラ
イダー３５，３６を２組同時に製造する場合で説
明したが、これに限ることなく、第３図に示すよ
うに製造することも可能である。
すなわち、第３図の製造方法はまず同図ａに示
すように断面略コ字形状の非磁性体４５の一方端
にマスク４６を施こしてガラス等の絶縁体４７を
付着させ、同図ｂに示すように凹部４８を形成し
た後、上記絶縁体４７にマスク４９を施して、同
図ｃに示すようにパーマロイ等の磁性体５０を付
着させる。そして、上記非磁性体４５は図中破線
で示すように所定の寸法で切断され、同図ｄに示
すように各一端部に上記シヨートバー３７，３８
を構成する磁性体５０を有する断面略コ字形状の
一対の非磁性体スライダー３５，３６が形成され
る。
なお、この発明は上記各実施例に限ることな
く、その外、この発明の要旨を逸脱しない範囲で
種々の変形を実施し得ることは言う迄もないこと
である。
〔発明の効果〕
以上詳述したように、この発明によれば簡易な
構成で、しかも製作性の向上に寄与し得、かつ可
及的にコア効率の向上に寄与し得る磁気ヘツドの
製造方法を提供することができる。 DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of manufacturing a magnetic head used, for example, in a floppy disk device. [Technical Background of the Invention] Conventionally, this type of magnetic head is shown in Fig. 4 a, b, c.
As shown in the figure, a magnetic head core 1 has magnetic cores 2 and 3 bonded together with a glass 4 to form a gap 5 for recording and reading, a first core 6 and magnetic cores 7 and 8 bonded together with a glass 9. Gap 10 for erasing
It is formed by bonding the second core 11 formed with A and 10B with a non-magnetic adhesive 12 such as glass or organic adhesive. The magnetic head core 1 has non-magnetic sliders 13 made of ceramic or the like on both sides.
14 is adhered, and a sliding surface 15 is formed on the upper surface of the magnetic recording medium for sliding contact with a magnetic recording medium (not shown). Further, the magnetic head core 1 has, at its base,
One magnetic core 2 of the first core 6 is loosely passed through the recording/reading coil 16, and its end is connected to the other magnetic core 3 via a short bar 17, and the second core One magnetic core 7 of 11
is loosely passed through the erasing coil 18, and its end is connected to the other magnetic core 8 via a short bar 19 to form each closed magnetic path. [Problems with the Background Art] However, in the magnetic head described above, the short bars 17 and 19 are bonded to the bases of the first core 6 and second core 11 , which are extremely weak in strength. During adhesion, it is difficult to process uniformly, resulting in the formation of an adhesive layer ΔS, which poses a problem of reducing core efficiency. In addition, according to this, the structure is complex and the strength is weak, so it is difficult to handle, and there is a risk of damage during production, resulting in very poor productivity. are doing. [Object of the Invention] The present invention has been made in view of the above circumstances, and provides a magnetic head that has a simple configuration, can contribute to improved manufacturability, and can contribute to improved core efficiency as much as possible. The purpose is to provide a manufacturing method. [Summary of the Invention] That is, the present invention forms a recess in a non-magnetic material, attaches a magnetic material to the recess, and divides the non-magnetic material to have a short bar formed of the magnetic material at one end. The intended purpose was achieved by forming a non-magnetic slider with a substantially U-shaped cross section, and sandwiching a magnetic core and a coil between two of the non-magnetic sliders. [Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a magnetic head manufactured by a method of manufacturing a magnetic head according to an embodiment of the present invention, and numeral 20 in the figure is a magnetic head core. This magnetic head core 20 has a first core 25 in which a gap 24 for recording and reading is formed by bonding magnetic cores 21 and 22 with a glass 23, and a magnetic core 26 and 27 bonded with a glass 28 for erasing. Gap 29,3
It is formed by adhering to the second core 31 on which 0 is formed using a non-magnetic adhesive 32. At the base of the magnetic head core 20 , one end of the magnetic core 21 of the first core 25 is loosely penetrated by a recording/reading coil 33, and one end of the magnetic core 21 of the second core 31 is loosely penetrated. With one end of the magnetic core 27 loosely passed through the erasing coil 34, a pair of non-magnetic sliders 35 and 36 having a substantially U-shaped cross section manufactured as described later are bonded so as to be sandwiched therebetween. A sliding surface 51 for slidingly contacting a magnetic recording medium (not shown) is formed on the front surface thereof. These non-magnetic sliders 35 and 36 are provided with shot bars 37 and 38 at one end thereof, corresponding to the magnetic cores 21 and 22 of the first core 25 and the magnetic cores 26 and 27 of the second core 31. ing. and,
These shot bars 37 and 38 connect one end of one magnetic core 21 and the other magnetic core 25 in the first core 25 and the Connecting one end of one magnetic core 26 and the other magnetic core 27 in the second core 31 ,
Each of them is designed to form a closed magnetic path. Next, a method of manufacturing the non-magnetic sliders 35 and 36 will be explained. That is, the non-magnetic sliders 35 and 36 are manufactured by the manufacturing process shown in FIG.
First, a mask 40 is applied to one side of a non-magnetic material 39 such as ceramic as shown in FIG. The magnetic material 42 is attached by plating, sputtering, vapor deposition, or the like. As shown in FIG.
3 and 44, and one side of the bonding surface 45
After polishing the magnetic material 42 to a mirror surface, the magnetic material 42 is cut into approximately four equal parts at the positions indicated by broken lines in the figure, and as shown in FIG. Two pairs of substantially U-shaped nonmagnetic sliders 35 and 36 are formed. That is, when the magnetic head is installed, the pair of non-magnetic sliders 35 and 36 formed as described above are used to move the first and second cores 2.
One of the magnetic cores 21 and 26 of each of the magnetic cores 5 and 31 is glued to both sides of the magnetic head core 20 formed by loosely penetrating the coils 33 and 34 so as to be sandwiched therebetween. Then, the magnetic head core 20 has a sliding surface 51 on its front surface that is in sliding contact with the magnetic recording medium (not shown), and as described above, the sliding surface 51 of the first and second cores 25 and 31 is formed. The magnetic cores 21 and 22 and 26 and 27 are connected via the short bars 37 and 38 of the non-magnetic sliders 35 and 36, respectively, to form a closed magnetic circuit, completing the fabrication and assembly. As described above, in the method for manufacturing the magnetic head, the short bars 37 and 38 are integrally formed with the approximately U-shaped non-magnetic sliders 35 and 36, and the magnetic head core is manufactured using these non-magnetic sliders 35 and 36. 20 is sandwiched with adhesive on both sides, so the structure is box-shaped, which effectively improves the strength and makes it sturdy. As a result, bonding accuracy can be improved and core efficiency can be improved. Moreover, according to this, since the structure becomes robust and the handling during manufacturing is improved, it can also contribute to improving the manufacturability. Furthermore, although the present invention has been described in the above embodiment in the case where two sets of non-magnetic sliders 35 and 36 are manufactured at the same time, the present invention is not limited to this, and it is also possible to manufacture them as shown in FIG. That is, in the manufacturing method shown in FIG. 3, first, a mask 46 is applied to one end of a non-magnetic material 45 having a substantially U-shaped cross section as shown in FIG. After forming the concave portion 48 as shown in FIG. 3, a mask 49 is applied to the insulator 47, and a magnetic material 50 such as permalloy is attached as shown in FIG. Then, the non-magnetic material 45 is cut to a predetermined size as shown by the broken line in the figure, and the short bars 37, 38 are attached to each end as shown in the figure d.
A pair of non-magnetic sliders 35 and 36 having a substantially U-shaped cross section are formed having a magnetic material 50 constituting the magnetic material 50 . It goes without saying that the present invention is not limited to the above embodiments, and that various modifications can be made without departing from the spirit of the invention. [Effects of the Invention] As detailed above, the present invention provides a method for manufacturing a magnetic head that has a simple configuration, can contribute to improved manufacturability, and can contribute to improved core efficiency as much as possible. can be provided.
第１図はこの発明の一実施例に係る磁気ヘツド
の製造方法により製作された磁気ヘツドを示す構
成説明図、第２図は第１図の非磁性体スライダー
の製造工程を示す工程説明図、第３図はこの発明
の他の実施例に係る非磁性体スライダーの製造工
程を示す工程説明図、第４図は従来の磁気ヘツド
を示す構成説明図である。
２０…磁気ヘツドコア、２１，２２，２６，２
７…磁性体コア、２３，２８…ガラス、２４，２
９，３０…ギヤツプ、２５…第１のコア、３１…
第２のコア、３２…非磁性体接着剤、３３，３４
…コイル、３５，３６…非磁性体スライダー、３
７，３８…シヨートバー、３９，４５…非磁性
体、４０，４６，４９…マスク、４１，４８…凹
部、４２，５０…磁性体、４３，４４…溝部、４
５…貼合せ面、５１…摺動面。
FIG. 1 is a configuration explanatory diagram showing a magnetic head manufactured by a magnetic head manufacturing method according to an embodiment of the present invention, FIG. 2 is a process explanatory diagram showing the manufacturing process of the non-magnetic slider of FIG. 1, FIG. 3 is a process explanatory diagram showing the manufacturing process of a non-magnetic slider according to another embodiment of the present invention, and FIG. 4 is a structural diagram showing a conventional magnetic head. 20 ... Magnetic head core, 21, 22, 26, 2
7...Magnetic core, 23,28...Glass, 24,2
9, 30...gap, 25 ...first core, 31 ...
Second core, 32...Nonmagnetic adhesive, 33, 34
...Coil, 35, 36...Nonmagnetic slider, 3
7, 38... Shot bar, 39, 45... Non-magnetic material, 40, 46, 49... Mask, 41, 48... Recessed portion, 42, 50... Magnetic material, 43, 44... Groove portion, 4
5... Bonding surface, 51... Sliding surface.
Claims (1)
端部が遊貫されるコイルと、このコイルに遊貫さ
れた前記一対の磁性体コアの一方の基部と他方を
接続するシヨートバーと、前記一対の磁性体コア
の両側部に設けられるもので、磁気記録媒体摺接
面を形成する一対の非磁性体スライダーとを備え
てなる磁気ヘツドの製造方法において、非磁性体
に凹部を形成して、この凹部に磁性体を付着せし
め、この非磁性体を分割して一端部に前記磁性体
で形成される前記シヨートバーを有した断面略コ
字形状の前記非磁性体スライダーを形成し、この
非磁性体スライダーで前記磁性体コア及びコイル
を挟装してなることを特徴とする磁気ヘツドの製
造方法。1. A coil through which the base end of one of a pair of magnetic cores forming a magnetic path is loosely passed through, and a short bar connecting the base end of one of the pair of magnetic cores through the coil with the other; A method for manufacturing a magnetic head comprising a pair of non-magnetic sliders that are provided on both sides of the pair of magnetic cores and form sliding contact surfaces for a magnetic recording medium, including forming recesses in the non-magnetic material. Then, a magnetic material is attached to the recess, and the non-magnetic material is divided to form the non-magnetic slider having a substantially U-shaped cross section and having the short bar formed of the magnetic material at one end. A method of manufacturing a magnetic head, comprising sandwiching the magnetic core and coil between non-magnetic sliders.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26331984A JPS61142511A (en) | 1984-12-13 | 1984-12-13 | Production of magnetic head |
| US06/791,530 US4748527A (en) | 1984-10-30 | 1985-10-25 | Magnetic head device with back core integral in holder shell |
| DE19853538632 DE3538632A1 (en) | 1984-10-30 | 1985-10-30 | MAGNETIC HEAD UNIT AND METHOD FOR THEIR PRODUCTION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26331984A JPS61142511A (en) | 1984-12-13 | 1984-12-13 | Production of magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61142511A JPS61142511A (en) | 1986-06-30 |
| JPH0580722B2 true JPH0580722B2 (en) | 1993-11-10 |
Family
ID=17387826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26331984A Granted JPS61142511A (en) | 1984-10-30 | 1984-12-13 | Production of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61142511A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61130010U (en) * | 1985-01-30 | 1986-08-14 | ||
| JPS61130011U (en) * | 1985-01-31 | 1986-08-14 |
-
1984
- 1984-12-13 JP JP26331984A patent/JPS61142511A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61142511A (en) | 1986-06-30 |
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