JPH01224903A - Shielding device for magnetic field - Google Patents
Shielding device for magnetic fieldInfo
- Publication number
- JPH01224903A JPH01224903A JP5113088A JP5113088A JPH01224903A JP H01224903 A JPH01224903 A JP H01224903A JP 5113088 A JP5113088 A JP 5113088A JP 5113088 A JP5113088 A JP 5113088A JP H01224903 A JPH01224903 A JP H01224903A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- magnetic
- head slider
- gimbal spring
- thin film
- 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
Links
- 239000010409 thin film Substances 0.000 claims abstract description 12
- 230000035699 permeability Effects 0.000 claims abstract description 7
- 230000002950 deficient Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はフロッピーディスクドライブ（以下ＦＤＤと
いう）等圧使用される磁気ヘッドを外部磁界の影響から
防止するシールド装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shield device for protecting a magnetic head used in a floppy disk drive (hereinafter referred to as FDD) from the influence of an external magnetic field.
ＦＤＤｉパーソナルコンピュータ、オフィスコンピュー
タ、ミニコンピユータ、ワードプロセッサ等の外部記憶
装置として使用が拡大している。FDDi is increasingly being used as an external storage device for personal computers, office computers, minicomputers, word processors, and the like.
ところで、これらの各種コンピュータ機器には。By the way, these various computer devices.
デイスプレィモニタとして、Ｂ極線管表示装置が使用さ
れているが、この陰極線管表示装置の偏向ヨークからの
漏洩磁界によ５．ＦＤＤの磁気ヘッドが影響を受け、書
込み又は続出しのエラーの原因となっている。また、Ｆ
ＤＤ自体にも、ディスクを一定の周期で回転させるため
のスピンドルモータ、磁気ヘッドを所定のトラック位置
に移動させるためのステッピングモータ、ａ気ヘッドｔ
−７’イスクに対しロード／アンロードさせるためのソ
レノイド等、外部磁界を発生させる部品があり。A B cathode ray tube display device is used as a display monitor, but due to the leakage magnetic field from the deflection yoke of this cathode ray tube display device. The magnetic head of the FDD is affected, causing writing or continuous writing errors. Also, F
The DD itself also has a spindle motor to rotate the disk at a constant cycle, a stepping motor to move the magnetic head to a predetermined track position, and a magnetic head.
-7' There are parts that generate external magnetic fields, such as a solenoid for loading/unloading the isk.
これらの外部磁界が磁気ヘッドの電磁変換性能を低下さ
せる作用をしている。These external magnetic fields act to reduce the electromagnetic conversion performance of the magnetic head.
その対策として、従来から磁気ヘッド自体に。As a countermeasure, we have traditionally developed the magnetic head itself.
パーマロイ等の高透磁率磁性材料からなるリングを被装
し、外部磁界の影響を防止するようにしている。It is covered with a ring made of a high permeability magnetic material such as permalloy to prevent the influence of external magnetic fields.
第５図及び第６図は、従来の磁気ヘッドのシールド装置
を示す図で、第５図は平面口、第６因は右側面図である
。5 and 6 are diagrams showing a conventional magnetic head shielding device, where FIG. 5 is a plan view and the sixth factor is a right side view.
図中、（１）は記録・再生用ヘッドコアと一対の消去用
ヘッドコアとそれらの両側面に配設された一対のセラミ
ックホルダからなる磁気ヘッドスライダ、（２）はペリ
ラム銅板、ステ／レス鋼板等で形成され、 ａｆｉヘッ
ドスライダ（１１が接着固定されたシフパルはね、（３
）は磁気ヘッドと記鐘φ再生回路及び消去回路（いずれ
も図示しない）とラミ気的に接続するフレキシブルリー
ド、（４）は磁気ヘントスライダｆｉｌの外周に設けら
れジンバルばね（２）に接着固定さｎた高透磁率の磁性
材料９例えばパーマロイからなるシールドリングである
。In the figure, (1) is a magnetic head slider consisting of a recording/reproducing head core, a pair of erasing head cores, and a pair of ceramic holders arranged on both sides of these, and (2) is a perillam copper plate, stainless steel plate, etc. Afi head slider (11) is glued to the shift pal, (3
) is a flexible lead that is laminated to connect the magnetic head and the recording circuit and erasing circuit (none of which are shown), and (4) is a flexible lead that is provided on the outer periphery of the magnetic hent slider fil and fixed to the gimbal spring (2) with adhesive. The shield ring is made of a magnetic material 9 having high magnetic permeability, such as permalloy.
従来の磁気ヘッドのシールド装置は上記のように構成さ
れ、シールドリンク（４）はジンバルはね（２）に接着
固定された磁気ヘントスライダ（１１に挿入して、ジン
バルはね（２）に接着固定される。A conventional magnetic head shielding device is constructed as described above, and the shield link (4) is inserted into the magnetic hent slider (11) that is adhesively fixed to the gimbal spring (2), and is glued to the gimbal spring (2). Fixed.
〔発明が解決しようとする課題〕
上記のような従来の磁気ヘッドのシールド装置では、シ
ールドリング（４）全磁気ヘッドスライダ（１）の接着
固定とは別工程でジンバルはね（２）に接着固定してい
るため、ａ気ヘッドの組立工程が増え。[Problems to be Solved by the Invention] In the conventional magnetic head shield device as described above, the shield ring (4) is bonded to the gimbal spring (2) in a separate process from the bonding and fixing of the entire magnetic head slider (1). Because it is fixed, the assembly process for the a-air head increases.
組立時間が長くなると共に９部品点数が多くなることに
よってコスト高となるという問題点がある。There are problems in that the assembly time becomes longer and the number of nine parts increases, resulting in higher costs.
また、シールドリング（４１を磁気ヘッドスライダ＋１
１に挿入する際、シールドリング（４１が磁気ヘッドス
ライダ（１）の稜線や角部に当たるため、磁気ヘッドス
ライダ（１）に欠損、き裂等の損傷を与えたシ、シール
ドリング（４）取付は時に浮上りを生じたシして作業ミ
スによる不良品の発生を誘発させるという問題点もある
。In addition, the shield ring (41 is attached to the magnetic head slider + 1
When inserting the shield ring (41 into There is also the problem that sometimes floating occurs, leading to the production of defective products due to work errors.
この発明は上記問題点を解決するためになされたもので
、安価に製造でき、かつ作業ミスによシ誘発される不良
品の発生をなく丁ことかできるようにした磁気ヘッドの
シールド装置’ｅ提供することを目的とする。This invention was made to solve the above problems, and is a magnetic head shielding device which can be manufactured at low cost and can be manufactured without producing defective products caused by work errors. The purpose is to provide.
この発明に係る磁気ヘッドのシールド装置は。 A magnetic head shielding device according to the present invention.
磁気ヘントスライダが接着固定されるジンバルはねの少
なくとも一面の磁気ヘッドスライダの周辺部に、高透磁
率の磁性薄膜を形成したものである。A magnetic thin film with high magnetic permeability is formed around the magnetic head slider on at least one surface of the gimbal spring to which the magnetic hent slider is adhesively fixed.
この発明においては、ジンバルばねの面に磁性薄膜を形
成したため、上記シールドリングのような部品は不要と
なる。また、磁気ヘッドスライダに当たっても、これを
損傷させたシする部材もない。In this invention, since a magnetic thin film is formed on the surface of the gimbal spring, parts such as the shield ring described above are not required. Furthermore, there is no member that would damage the magnetic head slider even if it were to hit it.
第１図及び第２図はこの発明の一実施例を示す図で、第
１図は平面図、第２図は右側面図であシ。1 and 2 are views showing one embodiment of the present invention, with FIG. 1 being a plan view and FIG. 2 being a right side view.
従来装置と同様の部分は同一符号によル示す。Portions similar to those of the conventional device are designated by the same reference numerals.
図中、（５）はジンバルはね（２）の表面の磁気ヘッド
コア（１１の周囲に形成された高透磁率の磁性材料から
なる磁性薄膜で２例えばセノダスト、アモルファス等の
磁性材料ｔｇ射、蒸着等の手段によシ形成される。In the figure, (5) is a magnetic thin film made of a magnetic material with high magnetic permeability formed around the magnetic head core (11) on the surface of the gimbal spring (2). It is formed by means such as.
すなわち、所定の形状に形成され九ジ／パルはね（２）
全大量に準備し、このシフパルはね（２）の表面の、Ｉ
Ｂ気ヘッドスライダ（１）が設けられる位置の周囲に、
所定のパター７形状に磁性薄膜（５）ｔ−形成する。次
に、ジンバルはね（２）に磁気ヘッドスライダ（Ｉｎ接
着固定する。そして、フレキシブルリード（３）、記録
・再生用コイル、消去用コイル及びバンクコアを順次接
着固定して磁気ヘッドが組み立てられる。In other words, it is formed into a predetermined shape and the nine ji/pal springs (2)
Prepare the entire amount and apply I on the surface of this sifpal (2).
Around the position where the B air head slider (1) is installed,
A magnetic thin film (5) is formed in a predetermined pattern 7 shape. Next, the magnetic head slider (In) is fixed to the gimbal spring (2) with adhesive. Then, the flexible lead (3), the recording/reproducing coil, the erasing coil, and the bank core are sequentially adhesively fixed to assemble the magnetic head.
したがって、第５図及び第６図に示すシールドリング（
４）のような部品は不要となり２部品点数は減少し、上
記部品が磁気ヘッドスライダ（１）と衝突して、それを
損傷させたシする虞九もない。Therefore, the shield ring shown in FIGS. 5 and 6 (
Components such as 4) are no longer necessary, the number of components is reduced by two, and there is no risk of the components colliding with the magnetic head slider (1) and damaging it.
第３図及び第４図はこの発明の他の実施例を示すジンバ
ルはね（２）部分の平面図で、第１図が磁性薄膜（５）
を磁気ヘッドスライダ（１１の周囲に形成させたのに対
し、第３図のものは、磁気ヘッドスライダ（１１の磁気
ヘッドコア脚部の挿入穴（２ａ）の近傍部を除き、挿入
穴（２ａ）の周囲に形成させたものである。ま次、第４
図のものは、磁性薄膜（５）をジンバルはね（２）のほ
ぼ全面にわたって形成したものである。いずれも、第１
図のものと同等以上のシールド機能を持たせることが可
能である。3 and 4 are plan views of the gimbal spring (2) portion showing other embodiments of the present invention, and FIG.
is formed around the magnetic head slider (11), whereas the one in FIG. It is formed around the 4th
In the illustrated example, a magnetic thin film (5) is formed over almost the entire surface of the gimbal blade (2). In both cases, the first
It is possible to provide a shielding function equivalent to or better than that shown in the figure.
なお、上記各実施例でな、磁性薄膜（５）をジンバルは
ね（２）の−面に形成させるものを示したが、これを両
面に形成させてもよいことは明白である。In each of the above embodiments, the magnetic thin film (5) is formed on the - side of the gimbal spring (2), but it is obvious that it may be formed on both sides.
以上説明したとお夕この発明では、ａ気ヘッドスライダ
が接着固定されるジンバルばねの少なくとも一面の磁気
ヘッドスライダの周辺部に、高透磁率の磁性薄膜を形成
したので、あらかじめ−括大量に磁性薄膜を形成させる
ととにより１組立時間の低減と９部品点数の減少によシ
、磁気ヘッドを安価に製造することができる効果がある
。また。As explained above, in this invention, a magnetic thin film with high magnetic permeability is formed on the periphery of the magnetic head slider on at least one surface of the gimbal spring to which the a-head slider is adhesively fixed. By forming the magnetic head, it is possible to reduce the assembly time and the number of parts, thereby making it possible to manufacture the magnetic head at a low cost. Also.
磁気ヘッドスライダに当たる部品も不要となるので２作
業ミスによシ訪発される不良品の発生をなくすことがで
き９歩留り及び品質の向上を図ることができる効果もあ
る。Since the parts corresponding to the magnetic head slider are not required, it is possible to eliminate the occurrence of defective products due to mistakes in two operations, and it is also possible to improve yield and quality.
第１図はこの発明による磁気ヘッドのシールド装置の一
実施例を示す平面図、第２図は第１図の右側面図、第３
図及び第４図はこの発明の他の実施例を示すジンバルは
ね部分の平面図、第５図は従来の磁気ヘッドのシールド
装ｆＩ１１ｔ−示す平面図。
第６図は第５図の右側面図である。
口中、（１）は磁気へッドスライダ、＋２１ａジンバル
ばね、（５）は磁性薄膜である。
なお２図中同一符号は同−又は相当部分を示す。FIG. 1 is a plan view showing an embodiment of a shielding device for a magnetic head according to the present invention, FIG. 2 is a right side view of FIG. 1, and FIG.
FIG. 4 is a plan view of a gimbal spring portion showing another embodiment of the present invention, and FIG. 5 is a plan view showing a shielding device fI11t of a conventional magnetic head. FIG. 6 is a right side view of FIG. 5. In the mouth, (1) is a magnetic head slider, +21a gimbal spring, and (5) is a magnetic thin film. Note that the same reference numerals in the two figures indicate the same or equivalent parts.
Claims (1)
を有する磁気ヘッドスライダが、ジンバルばねに接着固
定されるものにおいて、上記ジンバルばねの少なくとも
一面の上記磁気ヘッドスライダの周辺部に高透磁率の磁
性薄膜を形成したことを特徴とする磁気ヘッドのシール
ド装置。A magnetic head slider having a recording/reproducing magnetic head core and an erasing magnetic head core is adhesively fixed to a gimbal spring, and a magnetic thin film with high magnetic permeability is provided around the magnetic head slider on at least one surface of the gimbal spring. A shielding device for a magnetic head, characterized in that it is formed with:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5113088A JPH01224903A (en) | 1988-03-04 | 1988-03-04 | Shielding device for magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5113088A JPH01224903A (en) | 1988-03-04 | 1988-03-04 | Shielding device for magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01224903A true JPH01224903A (en) | 1989-09-07 |
Family
ID=12878231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5113088A Pending JPH01224903A (en) | 1988-03-04 | 1988-03-04 | Shielding device for magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01224903A (en) |
-
1988
- 1988-03-04 JP JP5113088A patent/JPH01224903A/en active Pending
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