JPH046605A - Multitrack magnetic head - Google Patents
Multitrack magnetic headInfo
- Publication number
- JPH046605A JPH046605A JP10616990A JP10616990A JPH046605A JP H046605 A JPH046605 A JP H046605A JP 10616990 A JP10616990 A JP 10616990A JP 10616990 A JP10616990 A JP 10616990A JP H046605 A JPH046605 A JP H046605A
- Authority
- JP
- Japan
- Prior art keywords
- head
- magnetic
- chips
- track
- end faces
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 45
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 18
- 239000000696 magnetic material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は高信号レートの記録再生に適した、クロストー
クの少ないマルチトラック磁気へノドに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a multi-track magnetic node suitable for recording and reproducing at high signal rates and having little crosstalk.
従来の技術
近年高品位ＶＴＲやディジタルＶＴＲなどの広帯域信号
を取り扱うンステムの開発が盛んになってきている。こ
の広帯域信号を記録再生するために、テープ、ヘッド間
の相対速度のアンプや、マルチチャンフル化が研究され
ている。マルチチャンフルの記録再生をするためには、
回転シリンダー上の１つのヘッド取り付は窓中に複数の
ヘッドを取り付けた方が良く、テープとの均一な接触を
保持するために、ヘッドの突出形状やトラック幅方向の
Ｒの最適化等の工夫がなされている。2. Description of the Related Art In recent years, systems for handling wideband signals such as high-definition VTRs and digital VTRs have been actively developed. In order to record and reproduce this wideband signal, research is being carried out on amplification of the relative speed between the tape and the head, and on multi-channel recording. In order to perform multi-chanful recording and playback,
Instead of installing one head on a rotating cylinder, it is better to install multiple heads in the window, and in order to maintain uniform contact with the tape, it is necessary to optimize the protruding shape of the head and the radius in the track width direction. Efforts have been made.
発明が解決しようとする課題
回転シリンダー上の１つのヘッド取り付は窓中に複数の
へノドを取り付ける場合、テープとの安定な接触を図る
ためにはそれぞれのヘッドチップ間隔はなるべく小さい
ほうがよい。このようなヘッドの各チップのヘッド取り
付は基板（へ、ドヘース）からのトラック高さを、高精
度に合わせようとすると、ヘッドチップ端面がら磁気コ
アまでの寸法を精度良く管理したとしても、へ、ドヘー
スに接着する接着剤の厚みのばらつきや、チップの傾き
のばらつきによって各チン１間の誤差を１μｍ以下に抑
えることは困難である。Problems to be Solved by the Invention When a single head is mounted on a rotary cylinder and a plurality of hems are mounted in a window, the distance between each head chip should be as small as possible in order to ensure stable contact with the tape. When installing each chip in such a head, if you try to match the track height from the substrate with high precision, even if you manage the dimensions from the end face of the head chip to the magnetic core with high precision, Furthermore, it is difficult to suppress the error between each chip 1 to 1 μm or less due to variations in the thickness of the adhesive bonded to the adhesive and variations in the tilt of the chip.
課題を解決するための手段
本発明は前記課題を解決するために、ヘッドチップ端面
に対して斜めに非磁性基板で両側から挟持された金属磁
気コアからなるリング形磁気ヘッドの、複数のチップが
走行方向の端面で相互に接着されて１つのヘッドベース
に搭載され、媒体摺動面上に形成された２本の直線状の
溝または段差により前記各ヘッドチップのトラック幅が
規制されていることを特徴とするマルチトラック磁気ヘ
ッドを構成することを特徴とする。Means for Solving the Problems In order to solve the above problems, the present invention provides a ring-shaped magnetic head that includes a plurality of chips of a ring-shaped magnetic head consisting of a metal magnetic core sandwiched from both sides by non-magnetic substrates diagonally with respect to the end face of the head chip. The head chips are bonded to each other at their end faces in the running direction and mounted on a single head base, and the track width of each of the head chips is regulated by two linear grooves or steps formed on the medium sliding surface. The present invention is characterized by configuring a multi-track magnetic head characterized by:
作用
本発明のへノドは非磁性基板で挟持された金属磁気コア
を用いる二よにより、フェライトヘッドと比べて隣接す
るヘッドチップ間の磁性材の対向面積を小さくするとと
もに、前記金属磁気コアをヘッドチップ端面に対して斜
めに配し、隣接へ。Function The henode of the present invention uses a metal magnetic core sandwiched between non-magnetic substrates, thereby reducing the facing area of the magnetic material between adjacent head chips compared to a ferrite head, and also making the metal magnetic core Arrange diagonally to the chip end face and adjacent to it.
ドチンプの磁気コア端面間の距離を大きくすること；こ
より、隣接ヘッド間のクロストークを非常↓こ小さくす
ることが可能である。またトラック幅の規制を直線状に
形成された溝または段差により行なっているので、隣接
するヘッドチップのトランク高さ相互の関係は、ギャッ
プ間隔が一定であれば高精度に決定される。By increasing the distance between the end faces of the magnetic cores of the dochinp, it is possible to greatly reduce the crosstalk between adjacent heads. Furthermore, since the track width is regulated by linearly formed grooves or steps, the relationship between the trunk heights of adjacent head chips can be determined with high precision as long as the gap interval is constant.
実施例
本発明のマルチトラックへνＦの実施例の一例を第１図
〜第３図をもとに説明する。第１図は３つのへソドチノ
プをヘッドベースに取り付けたマルチトラックヘッドの
斜視図、第２区はヘッド摺動面の図、第３図はへノド先
端部の斜視図である。Embodiment An example of an embodiment of the multi-track νF of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view of a multi-track head with three hesodotinops attached to the head base, the second section is a view of the head sliding surface, and FIG. 3 is a perspective view of the tip of the hesodotinop.
コイル４が巻線窓３に巻かれたリング形の３個のへ、ト
チツブが金属やセラミンクスからなるヘッドベース５の
上器こ搭載される、それぞれのチップは、ヘッド走行方
向の隣接する端面８．９でガラスなどにより相互に接着
されている。アモルファス磁性体やセンダストなどの強
磁性金ｒ！Ａ磁性体よりなる金属磁気コア１はヘッドベ
ース５に接着されるヘッドチップの端面７に対して斜め
に両側からチタン酸カルノウムや結晶化ガラスなどの非
磁性基板２で挟持されている。ヘットの磁気テープ摺動
面には、第１図に示すようにヘッドチップ端面７に対し
て斜めに段差１０が形成されている。Three ring-shaped coils 4 are wound around the winding window 3, and each tip is mounted on the head base 5, which is made of metal or ceramics. .9 and are bonded together with glass or the like. Ferromagnetic gold such as amorphous magnetic materials and sendust! A metal magnetic core 1 made of A magnetic material is sandwiched between non-magnetic substrates 2 such as carnoum titanate or crystallized glass from both sides obliquely with respect to the end surface 7 of a head chip adhered to a head base 5. As shown in FIG. 1, a step 10 is formed on the magnetic tape sliding surface of the head obliquely with respect to the head chip end surface 7.
これら２つの段差の間隔ＴＷで各チップのトラック幅が
規制され、ヘッドチップ端面７からの磁気ギヤノブ端部
６までのトラック高さｈ１〜ｈ３はギャップ間隔と段差
のヘッドチップ端面７に対する傾斜角度より高精度に決
定される。金属磁気コア厚とトラック幅は、例えば金属
磁気コア厚１５μｍ トランク幅１０μｍのように選ば
れるので、基板厚さや金属磁気コア厚さのばらつきや磁
気ギャンプにおける金属磁気コアの突合わせの誤差など
は、すべて段差の直線性の精度内に吸収される。The track width of each chip is regulated by the interval TW between these two steps, and the track heights h1 to h3 from the head chip end face 7 to the magnetic gear knob end 6 are determined by the gap interval and the inclination angle of the step with respect to the head chip end face 7. Determined with high precision. The metal magnetic core thickness and track width are selected as, for example, metal magnetic core thickness 15 μm and trunk width 10 μm, so variations in substrate thickness and metal magnetic core thickness and errors in matching metal magnetic cores in magnetic gaps are All are absorbed within the accuracy of the linearity of the step.
第４図、ヘッド走行方向からみた断面図で示すように、
トラック幅規制用の段差の形状は、ヘッド製造時にダイ
シング等の機械加工で溝を形成し、この溝中で一点鎖線
で示すようにヘッドチップを切断すればヘッド摺動面に
はＡのように段差ができるが、この溝より外側で切断す
れば８のように外側に基板を残巳た溝形状となる。この
溝の幅は最低磁気ギャップ近傍の金属磁気コアの不用部
分を削り落とすだけあれば良いが、その選択はこのヘッ
トを用いる記録再生装置の系の摺動状態やテープの種類
により決められる。又溝はアルミナなどの非磁性材料を
スパンクしたり、ガラスを熔融して流し込むなどの手段
により埋めることができ、段差部分で発生しやすい摩耗
粉の堆積を防くことができる。As shown in Fig. 4, a cross-sectional view viewed from the head running direction,
The shape of the step for regulating track width can be obtained by forming a groove by machining such as dicing during head manufacture, and by cutting the head chip in this groove as shown by the dashed line, the head sliding surface will have a shape as shown in A. A step is formed, but if the cut is made outside of this groove, the groove shape as shown in 8 is created with the substrate remaining on the outside. The width of this groove can be determined by simply scraping off the unnecessary portion of the metal magnetic core near the lowest magnetic gap, but its selection is determined by the sliding condition of the recording/reproducing apparatus using this head and the type of tape. Further, the grooves can be filled by sprinkling a non-magnetic material such as alumina or melting and pouring glass, thereby preventing the accumulation of abrasion powder that is likely to occur at the stepped portions.
金属磁気コア１はへッドチノプの端面に対して斜めに形
成されているので、隣接するヘッドチップの端面８，９
における金属磁気コアの位置はヘノトチ・ンプどうしが
接触している場合でも十分な距離が離れており、ギャッ
プ近傍がノツチ加工されたフェライトへノドのように強
磁性を有する磁性体全体が対向する構造と比べて、記録
再生時のクロストークが十分に小さく保たれる。Since the metal magnetic core 1 is formed obliquely with respect to the end surface of the head chip, the end surfaces 8 and 9 of the adjacent head chips
Even when the metal magnetic cores are in contact with each other, the positions of the metal magnetic cores are sufficiently far apart, and the entire ferromagnetic magnetic body faces each other like a notched ferrite near the gap. Compared to this, crosstalk during recording and playback is kept sufficiently small.
ヘッドの磁気ギャップ間隔、アジマス方向に関しては各
種組合せが可能である。例えば、アジマス０度で隣接す
る磁気ギヤノブ間にガードハンドとなる隙間を存する構
造や、隣接するヘッド間で逆向きのアノマスを有し磁気
ギャップ幅が記録トラックピッチより広い構造、隣接す
るヘットのアジマスが同じで磁気ギャップのピンチが記
録トラックピッチの倍で逆アジマスの他の１＆［ｌのヘ
ッドとスタガーに組み合わせて用いられる構造等各種の
ものが考えられるが、これらはヘッド作製時の非磁性基
板と金属磁性体の積層対から磁気ギャップ形成面を切り
出す方向及び、トラック幅規制溝の角度、磁気ヘッド切
断の方向を選ぶことでいずれも作製可能である。Various combinations are possible regarding the magnetic gap distance and azimuth direction of the head. For example, there is a structure in which there is a guard hand gap between adjacent magnetic gear knobs with an azimuth of 0 degrees, a structure in which adjacent heads have opposite anomalous directions and the magnetic gap width is wider than the recording track pitch, and an azimuth between adjacent heads. Various structures are conceivable, such as a structure that is used in combination with another 1 & [l head with the same magnetic gap pinch and a reverse azimuth and a stagger, but these are based on the non-magnetic substrate at the time of head fabrication. Any of these can be manufactured by selecting the direction in which the magnetic gap forming surface is cut out from the laminated pair of magnetic metal and magnetic material, the angle of the track width regulating groove, and the direction in which the magnetic head is cut.
本発明のヘッドの製造方法を、第５図をもとに示す。複
数のヘッドチップが積層されたギャップドパ−１］〜１
３を、その側面でガラス等により接着しブロック１４を
作る。このブロックの摺動面に、ヘッドチップ端面に対
して所定の角度を有する溝１５ａ、１５ｂを、ダイシン
グソーなどで形成する。その後−点鎖線で切断すること
により第１図に示すヘッドチップを得る。それぞれのギ
ャップドパ−は、各ヘットチップの金属コアｌが所定の
トラック高さになるように位置合わせニアて相互に接着
するが、トラック幅及びトラック高さはその後に形成さ
れる溝により規制されるので、接着精度としては金属コ
アｌがギャップ面で溝１５ａ、１５ｂの間に位置する程
度でよく、製造歩留まりを大幅に上げることが可能であ
る。上記実施例ではへノド摺動面が平面である例を示し
たが、溝形成時にダイシングソーを曲線に沿って送れば
へノド摺動面のＲ形状を仕上げた後、均一な深さの溝を
形成することが可能なのは明らかである。A method for manufacturing the head of the present invention will be shown based on FIG. Gap doper 1 in which a plurality of head chips are stacked] ~ 1
3 is adhered to its side surface using glass or the like to form a block 14. Grooves 15a and 15b having a predetermined angle with respect to the end face of the head chip are formed on the sliding surface of this block using a dicing saw or the like. Thereafter, the head chip shown in FIG. 1 is obtained by cutting along the dashed-dotted line. Each gap doper is aligned and bonded to each other so that the metal core l of each head chip has a predetermined track height, but the track width and track height are regulated by the grooves formed afterwards. The adhesion accuracy is such that the metal core l is located between the grooves 15a and 15b on the gap surface, and it is possible to significantly increase the manufacturing yield. In the above embodiment, an example in which the hendo sliding surface is flat is shown, but if the dicing saw is sent along a curve when forming the groove, after finishing the R shape of the hendo sliding surface, a groove of uniform depth can be formed. It is clear that it is possible to form
また本実施例ではへラドチップ端面に対して溝を斜めに
形成した例を示したが、平行な溝の入ったヘッドを傾斜
したヘッドベースに取り付はケ場合にも、同様なマルチ
トラック記録再生が可能であり、この場合にも実施例で
示したクロストークが小さくトランク幅精度のよい本発
明のへノドの特徴は何等損なわれるものではない。In addition, although this example shows an example in which the grooves are formed diagonally with respect to the end surface of the Herad chip, similar multi-track recording and playback can be achieved even when a head with parallel grooves is attached to an inclined head base. is possible, and even in this case, the features of the henode of the present invention, which have small crosstalk and good trunk width accuracy, as shown in the embodiments, are not impaired in any way.
発明の効果
本発明によれば、一つのへソドヘース上に複数のヘット
チップを搭載したマルチトラックヘットにおいて、隣接
するヘントチノブ間の金属磁気コアの位置を互いに直接
対向しないように設置することによりヘッド間のクロス
トークを小さく保ったままヘッドチップ間隔を最小にで
きるので、ヘット、テープ間の摺動時の接触を良好に保
つことが可能である。又複数のチップのそれぞれのトラ
ック幅及びトラック高さは、トランク幅規制用の直線状
の２本の溝により決定されるので、個別のチップをヘッ
ドベースに張り付けた場合と比較して、高精度なものを
得ることが可能である。Effects of the Invention According to the present invention, in a multi-track head in which a plurality of head chips are mounted on a single head, metal magnetic cores between adjacent head tips are installed so that they do not directly oppose each other, thereby reducing the distance between the heads. Since the spacing between head chips can be minimized while keeping crosstalk small, it is possible to maintain good contact between the head and the tape during sliding. In addition, the track width and track height of each of the multiple chips are determined by two straight grooves for regulating the trunk width, resulting in higher precision than when individual chips are attached to the head base. It is possible to get something.
第１図は本発明のヘッドの斜視図、第２図は本発明のヘ
ッドを摺動面からみた正面図、第３図は本発明のヘッド
のヘッド先端部の斜視図、第４図は本発明のヘッドの溝
形状を説明する説明図、第５図は本発明のヘッドの製造
方法を説明する説明図である。
１・・・・・・金属コア、２・・・・・・非磁性基板、
３・・・・・・巻線ぎ、６・・・・・・磁気ギャップ端
部、７・・・・・・ヘントチノブ端面、８．９・・・・
・・ヘットチップの隣接する端面、１０・・・・・・段
差、１５ａ
１５ｂ・・・・・・溝。FIG. 1 is a perspective view of the head of the present invention, FIG. 2 is a front view of the head of the present invention viewed from the sliding surface, FIG. 3 is a perspective view of the head tip of the head of the present invention, and FIG. 4 is the head of the present invention. FIG. 5 is an explanatory diagram illustrating the groove shape of the head of the invention, and FIG. 5 is an explanatory diagram illustrating the method of manufacturing the head of the invention. 1...Metal core, 2...Nonmagnetic substrate,
3...Winding wire, 6...Magnetic gap end, 7...Hentochinob end face, 8.9...
...adjacent end faces of head chips, 10...steps, 15a 15b...grooves.
Claims (2)
側から挟持された金属磁気コアからなるリング形磁気ヘ
ッドの、複数のチップが走行方向の端面で相互に接着さ
れて１つのヘッドベースに搭載され、媒体摺動面上に形
成された２本の直線状の溝または段差により前記各ヘッ
ドチップのトラック幅が規制されていることを特徴とす
るマルチトラック磁気ヘッド。(1) A ring-shaped magnetic head consisting of a metal magnetic core sandwiched from both sides by non-magnetic substrates diagonally to the end face of the head chip. Multiple chips are bonded to each other at the end face in the running direction to form a single head base. A multi-track magnetic head, wherein the track width of each head chip is regulated by two linear grooves or steps formed on a sliding surface of a medium.
充填したことを特徴とする請求項（１）に記載のマルチ
トラック磁気ヘッド。(2) The multi-track magnetic head according to claim 1, wherein the grooves or steps regulating the track width are filled with a non-magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2106169A JP2543223B2 (en) | 1990-04-20 | 1990-04-20 | Multi track magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2106169A JP2543223B2 (en) | 1990-04-20 | 1990-04-20 | Multi track magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH046605A true JPH046605A (en) | 1992-01-10 |
| JP2543223B2 JP2543223B2 (en) | 1996-10-16 |
Family
ID=14426766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2106169A Expired - Lifetime JP2543223B2 (en) | 1990-04-20 | 1990-04-20 | Multi track magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543223B2 (en) |
-
1990
- 1990-04-20 JP JP2106169A patent/JP2543223B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2543223B2 (en) | 1996-10-16 |
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