JPS63171414A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS63171414A JPS63171414A JP219587A JP219587A JPS63171414A JP S63171414 A JPS63171414 A JP S63171414A JP 219587 A JP219587 A JP 219587A JP 219587 A JP219587 A JP 219587A JP S63171414 A JPS63171414 A JP S63171414A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- slider
- contact surface
- head
- 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.)
- Pending
Links
- 239000000696 magnetic material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000006850 spacer group Chemical group 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Magnetic Heads (AREA)
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等を用いて信号を記録
・再生する磁気ヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head for recording and reproducing signals using a floppy disk or the like.
第３図はこの種従来の磁気ヘッドを示すものであ９１図
において（Ｉｓは記録媒体（図示せず）と接触する接触
面側に記録・再生ギャップ（１Ｃ）と２つの消去ギャッ
プ（１ｆ）とを有する磁気ヘッドコアで。Figure 3 shows this type of conventional magnetic head. With a magnetic head core that has.
記録・再生ヘッドを構成するＴ形コア（１ａ）及び工形
コア（１ｂ）と、消去ヘッドを構成する工形コア（１ｄ
）及び工形コア（１ｅ）とを有し、工形コア（１ａ）と
工形コア（１ｂ）とで記録・再生ギャップ（１Ｃ）が形
成書れるとともに工形コア（１ｄ）と工形コア（１θ）
とで消去ギャップ（１ｆ）が形成され、工形コア（１ｂ
）と工形コア（１ｅ）との間に磁気干渉を防ぐとともに
接合するためのガラス等のスペーサが介在されて込る。A T-shaped core (1a) and a shaped core (1b) that constitute the recording/reproducing head, and a shaped core (1d) that constitutes the erasing head.
) and a shaped core (1e), a recording/reproducing gap (1C) is formed between the shaped core (1a) and the shaped core (1b), and the shaped core (1d) and the shaped core (1θ)
An erasure gap (1f) is formed by
) and the shaped core (1e), a spacer made of glass or the like is interposed to prevent magnetic interference and to bond the core (1e).
（２）は上記磁気ヘッドコア（１１の接触面と同一平面
上の接触面（２ａ）を有して上記磁気ヘッドコア（１）
の−側面接触面側端部に接合され、上記磁気ヘッドコア
（１）と略平行な外側面（２ｂ）を有し、接触面（２ａ
）に上記磁気ヘッドコア（１１と略平行（進行方向と同
方向）に溝部（３；が形成されているセラミック等の非
磁性材からなる第１のスライダ、（４）は上記磁気ヘッ
ドコア（１１の接触面と同一平面上の接触面（４ａ）を
有して上記磁気ヘッドコアｆｉ＋の他側面接触面側端部
に接合され、上記磁気ヘッドコア＋１１と略平行な外側
面（４ｂ）を有するセラミック等の非磁性材からなる第
２のスライダである。(2) has a contact surface (2a) on the same plane as the contact surface of the magnetic head core (11), and the magnetic head core (1)
The contact surface (2a) has an outer surface (2b) that is substantially parallel to the magnetic head core (1),
) is a first slider made of a non-magnetic material such as ceramic, in which a groove (3) is formed approximately parallel to (in the same direction as the traveling direction) the magnetic head core (11); A ceramic or the like having a contact surface (4a) on the same plane as the contact surface, joined to the end portion on the other side contact surface side of the magnetic head core fi+, and having an outer surface (4b) substantially parallel to the magnetic head core +11. This is a second slider made of a non-magnetic material.
この様に構成された磁気ヘッドにあっては、一般に１５
インチフロップディスクヘッド（以下ＦＤヘッドと称す
。）と５インチＦＤヘッドではＲ加工前の接触面部面積
が異なる。すなわち、第４図に示すように進行方向距離
Ｅは１５インチＦＤヘッドと５インチＦＤヘッドとを同
一寸法にすることは可能であるが、溝部（３）の幅寸法
はロウアヘッドとアッパーヘッドのそれぞれのトラック
間距離が１５インチＦＤヘッドで１．５ａｍ、５インチ
ＦＤヘッドでＬｌ １７ ｍと３．５インチＦＤヘッド
の溝部（３）の幅寸法Ａが５インチＦＤヘッドの溝部（
３）の幅寸法Ｃに比べ０．３〜０．４肩程度小さい。ま
た。In a magnetic head configured in this way, generally 15
An inch flop disk head (hereinafter referred to as FD head) and a 5 inch FD head have different contact surface areas before R processing. That is, as shown in Fig. 4, it is possible to make the distance E in the traveling direction the same for the 15-inch FD head and the 5-inch FD head, but the width dimension of the groove (3) is different for the lower head and the upper head. The track-to-track distance is 1.5 am for the 15-inch FD head, Ll 17 m for the 5-inch FD head, and the width dimension A of the groove (3) of the 3.5-inch FD head is 1.5 am for the 5-inch FD head.
It is about 0.3 to 0.4 smaller than the width dimension C of 3). Also.
磁気ヘッドの外形幅は、３．５インチＦＤヘッドの場合
に一般にコイルがＴ形コイル（１ａ）の脚部にコイルが
挿入されるため、λ５インチＦＤヘッドの外形幅Ｂが５
インチＦＤヘッドの外形幅りに比べて大きく、その結果
、Ｒ加工前の接触面面積は３．５インチＦＤヘッドの方
が５インチＦＤヘッドに比べてかなル大きくなる。従っ
て、１５インチＦＩＤヘッドと５インチｌ？’Ｄヘッド
とを同一のＲ加エプロセスによｊ５Ｒ研磨加工すると、
１５インチＦＤヘッドの記録媒体との接触面幅Ｆは５イ
ンチＦＤヘッドの接触面幅よ如も大きくなシ、その結果
、第４図図示斜線にて示す記録媒体との接触面面積が大
きくなシ、磁気ヘッドと記録媒体との接触安定性が悪く
なシ、出力特性、オーバーライド特性、掃引消去特性等
の磁気ヘッドの一磁−変換性能に悪影響を及ぼすという
問題点を生じるものであった。In the case of a 3.5-inch FD head, the external width of the magnetic head is generally such that the coil is inserted into the leg of the T-shaped coil (1a), so the external width B of a λ5-inch FD head is 5.
It is larger than the external width of the inch FD head, and as a result, the contact surface area before R processing is considerably larger for the 3.5 inch FD head than for the 5 inch FD head. Therefore, a 15 inch FID head and a 5 inch l? When the 'D head is polished by the same R process as j5R,
The contact surface width F of the 15-inch FD head with the recording medium is larger than that of the 5-inch FD head, and as a result, the contact surface area with the recording medium shown by diagonal lines in FIG. 4 is large. However, there have been problems in that the contact stability between the magnetic head and the recording medium is poor, and the single magnetic conversion performance of the magnetic head, such as output characteristics, override characteristics, and sweep/erase characteristics, is adversely affected.
３．５インチＦＤヘッドにおりて、接触面面積を小さく
するために、Ｒ研削研磨の加工時間を長くすることによ
って接触面幅Ｆを５インチＦＤヘッドの接触面幅Ｆと略
同−にすることは可能であるが、その場合には接触面長
さＧがＳインチＦＤヘッドに比べて小さくなシ、記録媒
体との接触面積が極端に小さくなプ、記録媒体の摺動寿
命に対して好ましくないという問題点を有するものであ
った。In order to reduce the contact surface area of the 3.5-inch FD head, the contact surface width F is made approximately the same as the contact surface width F of the 5-inch FD head by increasing the machining time of R grinding and polishing. However, in that case, the contact surface length G is smaller than that of an S-inch FD head, the contact area with the recording medium is extremely small, and the sliding life of the recording medium is affected. This has the problem of being undesirable.
この発明は上記した点に鑑みてなされたものであり、少
ない工程数でブレンドＲ加工のできる磁気ヘッドを得る
ことを目的とするものである。The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to obtain a magnetic head that can perform blend R processing with a reduced number of steps.
この発明に係る磁気ヘッドは、磁気ヘッドコアの両側面
を挾んで配設される第１及び第２のスライダを有したも
のにおいて、磁気ヘッドコアと略平行に溝部が形成され
ている第１のスライダの外側面と接触面との稜部及び溝
部の両ｇＡ１面と接触面との２つの稜部の少なくとも一
つの稜部に平面からなる斜面取）部を形成したものであ
る。A magnetic head according to the present invention has a first slider and a second slider disposed to sandwich both sides of a magnetic head core, in which the first slider has a groove formed substantially parallel to the magnetic head core. A beveled portion consisting of a flat surface is formed on at least one of the two ridges between the outer surface and the contact surface and the groove between the gA1 surface and the contact surface.
この発明においては、第１のスライダにおける斜面取シ
部が記録媒体との接触面積を所定の面積に規制できる。In this invention, the beveled portion of the first slider can regulate the contact area with the recording medium to a predetermined area.
以下にこの発明の一実施例を第１図及び第２図に基づい
て説明する。第１図において（５）は第１のスライダ（
２）の接触面（２ａ）と外側面（２ｂ）との稜部に形成
された平面からなる第１の斜面取プ部、 （６１（’ｎ
は第１のスライダ（２）の溝部（３）側面と接触面（２
ａ）との稜部に形成された平面からなる第２及び第３の
斜面取り部、（８１は第２のスライダ（４）の接触面（
４ａ）と外側面（４ｂ）との稜部に形成された平面から
なる第４の斜面数シ部である。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In Figure 1, (5) is the first slider (
2), the first beveled part consists of a plane formed at the ridge between the contact surface (2a) and the outer surface (2b), (61('n
is the side surface of the groove (3) of the first slider (2) and the contact surface (2).
a) second and third beveled portions consisting of planes formed on the ridges (81 is the contact surface of the second slider (4));
4a) and the outer surface (4b).
次に第２図に従って磁気ヘッドの組立方法について説明
する。まず、第１のスライダ（２）に第１ないし第３の
斜面数シ部（５１＋６１ ＋７１を形成する。この時。Next, a method of assembling the magnetic head will be explained with reference to FIG. First, the first to third slope portions (51+61+71) are formed on the first slider (2).At this time.
第１のスライダ（２）における磁気ヘッドコア（１）側
の接触面がＣＸ−ａ）だけ低く加工されている。また。The contact surface of the first slider (2) on the magnetic head core (1) side is processed to be lower by CX-a). Also.
第２のスライダ（４）に第４の斜面数シ部（８）全形成
する。これら第１及び第２のスライダ（２）（４）を磁
気ヘッド（１）を両側面から挾むようにして接触面側端
部にて接合する。この時の状態が第２図に示されている
。そして、所定のギャップデイブスを得るためのスライ
ダ研磨時の研磨寸法Ｘまで研磨する。A fourth sloped portion (8) is completely formed on the second slider (4). These first and second sliders (2) and (4) are joined at their contact surface side ends so as to sandwich the magnetic head (1) from both sides. The state at this time is shown in FIG. Then, the slider is polished to a polishing dimension X for obtaining a predetermined gap diameter.
この時、第１及び第４の斜面取り部＋５１ ＋８１は第
４図に示ｆＢ寸法が９寸法になるように施されておシ。At this time, the first and fourth beveled portions +51 to +81 are formed so that the fB dimension shown in FIG. 4 is 9 dimensions.
第２及び第３の斜面取り部１６１ ＋？）はＣ０，１５
〜ＣＧ、２になるように施これている。また、第１のス
ライダ（２）ニおける磁気ヘッドコア＋１１側の接触面
が（Ｘ−ａ）だけ低く加工されているため、研磨寸法Ｘ
まで研磨した後、第２図図示す寸法によって所定のギャ
ップディブスが得られているか否かを確認できる。研磨
寸法Ｘまで研磨する場合、最初の荒削シ加工時には研削
、研磨面積が小さいため荒削シ加工時間が短かくすみ、
上仕上げ加工時には研削、研磨面積が順々に大きくなる
ため面圧が順次減少するので、磁気ヘッドコア（１）と
第１及び第２のスライダ＋２１ ＋４！への加ニストレ
スが最終仕上げ寸法に近づくにつれて軽減するので、安
定した研磨面が得られるものである。さらに、第１ない
し第４の斜面取９部（５）〜（８）を形成する際に、多
数個取シ成形等によシ一括して斜面数シができるので。Second and third beveled portions 161 +? ) is C0,15
~CG, it is done so that it becomes 2. In addition, since the contact surface on the magnetic head core +11 side of the first slider (2) is processed to be lower by (X-a), the polishing dimension
After polishing to a certain extent, it can be confirmed whether or not a predetermined gap dibs has been obtained based on the dimensions shown in FIG. When polishing to the polishing dimension
During top-finishing, the grinding and polishing area increases one after another, so the surface pressure gradually decreases, so the magnetic head core (1) and the first and second sliders +21 +4! Since the applied stress on the polishing surface decreases as it approaches the final finished size, a stable polished surface can be obtained. Furthermore, when forming the first to fourth bevel chamfers 9 parts (5) to (8), several bevels can be formed at once by multi-cavity molding or the like.
磁気ヘッドコア（１）と第１及び第２のスライダ＋２１
（４！を組立後に斜面数シする場合に比べ、かなシの
コスト低減を図れるものである。Magnetic head core (1) and first and second sliders +21
(Compared to the case where several slopes are installed after assembling 4!, it is possible to reduce the cost of construction.
一方、１５インチ磁気ヘッドと５インチ磁気ヘッドの組
立に対しても、研磨寸法Ｘを変えるだけで良（、＆５イ
ンチ磁気ヘッドに対しても５インチ磁気ヘッドと同等の
適切な接触面積を得ることができるものである。On the other hand, for assembling a 15-inch magnetic head and a 5-inch magnetic head, it is sufficient to simply change the polishing dimension It is something that can be done.
なお、第１ないし第４の斜面数シ部（５）〜（８）にお
ける稜部に必要に応じてブレンドＲ加工が施されるもの
である。Note that the ridge portions of the first to fourth slope portions (5) to (8) are subjected to blend R processing as necessary.
この発明は以上に述べたように、磁気ヘッドコアの両側
面に第１及び第２のスライダが接合されるものにおいて
、磁気ヘッドコアに略平行に溝部が形成されている第１
のスライダの外側面と接触面との稜部及び溝部の両側面
と接触面との２つの稜部の少なくとも一つの稜部に斜面
数シ部を設けたものとしたので、製造工程を簡単にして
適切な平担な接触面積が得られるという効果がある。As described above, the present invention has a first slider and a second slider joined to both sides of a magnetic head core, and the first slider has a groove substantially parallel to the magnetic head core.
Since the manufacturing process is simplified, several slopes are provided on at least one of the ridges between the outer surface of the slider and the contact surface and the two ridges between both sides of the groove and the contact surface. This has the effect that an appropriate flat contact area can be obtained.
第１図はこの発明の一実施例を示す全体斜視図。
第２図は第１図のもののスライダ研磨前の磁気ヘッドを
示す側面部分断面図、第３図は従来の磁気へラドスライ
ダを示す全体斜視図、第４図は第３図のものの平面図で
ある。
図において、（１）は磁気ヘッドコア、（２）は第１の
スライダ、（３）は溝部、（４）は第２のスライダ、（
５）〜（８１け斜面数シ部である。
なお各図中同一符号は同−又は相当部分を示す。FIG. 1 is an overall perspective view showing an embodiment of the present invention. FIG. 2 is a side partial cross-sectional view showing the magnetic head before slider polishing of the one shown in FIG. 1, FIG. 3 is an overall perspective view showing a conventional magnetic herad slider, and FIG. 4 is a plan view of the one shown in FIG. 3. . In the figure, (1) is the magnetic head core, (2) is the first slider, (3) is the groove, (4) is the second slider, (
5) to (81 scale slopes). In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (3)
プと２つの消去ギャップとを有する磁気ヘッドコア、こ
の磁気ヘッドコアの接触面と同一平面上の接触面を有し
て少なくとも上記磁気ヘッドコアの一側面接触面側端部
に接合され、接触面に上記磁気ヘッドコアと略平行に溝
部が形成されているとともに上記磁気ヘッドコアと略平
行な外側面を有し、この外側面と接触面との稜部及び溝
部の両側面と接触面との２つの稜部の少なくとも１つの
稜部に平面からなる斜面取り部が形成された非磁性材か
らなる第１のスライダ、上記磁気ヘッドコアの接触面と
同一平面上の接触面を有して少なくとも上記磁気ヘッド
コアの他側面接触面側端部に接合され、上記磁気ヘッド
コアと略平行な外側面を有した非磁性材からなる第２の
スライダを備えた磁気ヘッド。(1) A magnetic head core having a recording/reproducing gap and two erasing gaps on the contact surface side that contacts the recording medium, and at least one of the magnetic head cores having a contact surface coplanar with the contact surface of the magnetic head core. It is joined to the side end of the side surface contact surface, has a groove formed in the contact surface substantially parallel to the magnetic head core, and has an outer surface substantially parallel to the magnetic head core, and a ridge portion between the outer surface and the contact surface. and a first slider made of a non-magnetic material and having a beveled portion made of a flat surface formed on at least one of the two ridges of the contact surface and both sides of the groove, which is flush with the contact surface of the magnetic head core. a second slider made of a non-magnetic material and having an outer surface substantially parallel to the magnetic head core, the second slider having an outer surface substantially parallel to the magnetic head core; .
触面との稜部に形成されたものであり、第２のスライダ
は外側面と接触面との稜部に斜面取り部が形成されたも
のであることを特徴とする特許請求の範囲第１項記載の
磁気ヘッド。(2) The beveled portion of the first slider is formed at the ridge between the outer surface and the contact surface, and the second slider has the beveled portion formed at the ridge between the outer surface and the contact surface. 2. A magnetic head according to claim 1, wherein the magnetic head is a magnetic head of claim 1.
面と接触面との２つの稜部それぞれに形成されたもので
あることを特徴とする特許請求の範囲第１項又は第２項
記載の磁気ヘッド。(3) The chamfered portions of the first slider are formed on each of the two ridges on both side surfaces of the groove portion and the contact surface, as set forth in claim 1 or 2. magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP219587A JPS63171414A (en) | 1987-01-08 | 1987-01-08 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP219587A JPS63171414A (en) | 1987-01-08 | 1987-01-08 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63171414A true JPS63171414A (en) | 1988-07-15 |
Family
ID=11522575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP219587A Pending JPS63171414A (en) | 1987-01-08 | 1987-01-08 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171414A (en) |
-
1987
- 1987-01-08 JP JP219587A patent/JPS63171414A/en active Pending
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