JPH04195813A - Positioning of magnetic head - Google Patents
Positioning of magnetic headInfo
- Publication number
- JPH04195813A JPH04195813A JP2328703A JP32870390A JPH04195813A JP H04195813 A JPH04195813 A JP H04195813A JP 2328703 A JP2328703 A JP 2328703A JP 32870390 A JP32870390 A JP 32870390A JP H04195813 A JPH04195813 A JP H04195813A
- Authority
- JP
- Japan
- Prior art keywords
- head
- head chip
- base
- chip
- head base
- 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
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 241000238631 Hexapoda Species 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は磁気記録再生装置に用いる磁気ヘッドの位ｍ決
め方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for positioning a magnetic head used in a magnetic recording/reproducing device.
従来の技術
磁気記録再生装置に用いる磁気ヘッドの位置決め機構精
度は、記録媒体に書かれる情報のフォーマットを決定す
る重要な精度である。BACKGROUND OF THE INVENTION The precision of the positioning mechanism of a magnetic head used in a conventional magnetic recording/reproducing device is an important precision that determines the format of information written on a recording medium.
例えば、家庭用ＶＴＲとして広く普及しているビデオテ
ープレコーダを例にとってみれば、記録されるトラック
フォーマットは、トラックピッチが２時間モードで６０
μｍ、６時間モードで２０μｍと非常に狭トラツク記録
となっており、しがちテープとヘッドはへりカルスキャ
ン方式で、ｉ ｓｏ”対向する二対のヘッドで、このト
ラックピッチを正確に刻む必要がある。For example, if we take a videotape recorder that is widely used as a home VTR, the recorded track format is 60 in 2-hour track pitch mode.
The track pitch is extremely narrow, measuring 20 μm in 6-hour mode, and the tape and head use a helical scan method, and it is necessary to precisely record this track pitch using two pairs of opposing heads. be.
これに対し、従来では、第４図、第５図に示す如く、ヘ
ッドチップ３をヘッドベース２に接着し、上シリンダ１
にビス４で接合し、１８０°対向の他方のヘッド高さを
確認し、規定値よりもズレを生じていた時は、あらかじ
め設置されたヘッド高さ調整用虫ビス５でもって、ヘッ
ドベース２を、第５図の如く、矢印７の方向にネジ込ん
で変形させ、ヘッドチップ高さ８を設定していた。In contrast, conventionally, as shown in FIGS. 4 and 5, the head chip 3 is glued to the head base 2, and the upper cylinder 1 is
Check the height of the other 180° opposing head with screw 4, and if there is a deviation from the specified value, use the pre-installed head height adjustment screw 5 to fix the head base 2. was deformed by screwing in the direction of arrow 7, as shown in FIG. 5, and a head chip height of 8 was set.
この変形量は通常５〜１０ミクロン以内であり、ヘッド
ベースは真ちゅう材で厚さ１〜２駒で構成されているた
め、変形によるヘッドチップ高さ調整は容易であった。The amount of this deformation is usually within 5 to 10 microns, and since the head base is made of brass and has a thickness of 1 to 2 pieces, it is easy to adjust the height of the head chip by deformation.
発明が解決しようとする課題
しかしながら、このような従来の虫ビス５とへラドベー
ス２の変形によるヘッドチップの高さ調整は、機械的な
振動や、環境変化による虫ビスのゆるみが発生した時に
は、ヘッドチップ高さは変動し、正確な記録トラックピ
ッチを確保することができない。Problems to be Solved by the Invention However, the conventional height adjustment of the head chip by deforming the insect screw 5 and the helad base 2 is difficult when the insect screw loosens due to mechanical vibration or environmental changes. The head chip height fluctuates, making it impossible to ensure accurate recording track pitch.
これらの対策に虫ビス５に対しネジロックなるネジゆる
み止め剤を用いているが、それでも数ミクロンのオーダ
でのヘッド高さ位置精度は確保することができなかった
。As a countermeasure against these problems, a screw loosening agent called Screwlock is used for the insect screws 5, but it is still not possible to ensure head height position accuracy on the order of several microns.
特に、上述したトラックピッチよりも更に狭トラツクピ
ッチのＶＴＲを開発する時には、この数ミクロンのオー
ダが重大な誤差要因となって来る。In particular, when developing a VTR with a track pitch even narrower than the above-mentioned track pitch, this order of several microns becomes a serious error factor.
本発明は上記課題を解決するもので、より高精度のヘッ
ド高さ調整が可能な磁気ヘッドの位置決め方法を提供す
るものである。The present invention solves the above-mentioned problems and provides a method for positioning a magnetic head that allows for more accurate head height adjustment.
課題を解決するための手段
本発明は上記目的達成のために、固定端とヘッドチップ
を搭載した可動部を有するヘッドベースの一部分を熱溶
解し、その部分を境としてヘッドチップ搭載部を変形さ
せ、ヘッドチップの位置を固定端を基準にして、任意の
位置に設定するものであり、さらにヘットチップの位置
は、ヘッドベースの一部溶解部の溶解する体積で制御す
るものである。Means for Solving the Problems In order to achieve the above object, the present invention heat-melts a part of the head base having a fixed end and a movable part on which the head chip is mounted, and deforms the head chip mounting part using that part as a boundary. , the position of the head chip is set at an arbitrary position with respect to the fixed end, and furthermore, the position of the head chip is controlled by the volume to be melted of the partially melted part of the head base.
作用
本発明は、ヘッドベースの一部分に熱エネルギーを集中
させ、溶解すると、ヘッドベースは溶解による形状変形
のための歪を受けて変形する。Operation According to the present invention, when thermal energy is concentrated on a portion of the head base and the head base is melted, the head base is deformed by being subjected to distortion due to shape deformation due to the melting.
ヘッドベースの変形量は加える熱エネルギーと相関があ
るため、任意の位置にヘッドベースを変形させることが
可能である。しかも基材の熱溶解と比較的高温で行うた
め、変形後の安定性は十分保たれる。Since the amount of deformation of the head base is correlated with the applied thermal energy, it is possible to deform the head base to any position. Moreover, since the base material is thermally melted and the process is carried out at a relatively high temperature, stability after deformation is sufficiently maintained.
実施例
以下本発明の一実施例について説明する。回転シリンダ
１にビデオヘッドを取り付ける場合、第１図に示すよう
に、先ず、回転シリンダ１に、ヘッドギャップが所定の
アジマス角を有する（又は有していない）ヘッドチップ
３を接着したヘッドベース２を、固定ネジ４でもって取
り付ける。EXAMPLE An example of the present invention will be described below. When attaching a video head to the rotary cylinder 1, as shown in FIG. 1, first, a head base 2 is attached to the rotary cylinder 1, and a head chip 3 having a head gap having (or not having) a predetermined azimuth angle is attached to the rotary cylinder 1. Attach with fixing screw 4.
ヘッドチップ３の位置は顕微鏡５１でもって観察する。The position of the head chip 3 is observed using a microscope 51.
加熱源として、ＹＡＧレーザー光源５０を用い、１次波
長１ミクロンを用いた。ＹＡＧレーザーはＩＫＩ（ｚの
雄りかえし周波数でパルス状に加えた。電力は１． Ｗ
Ａ Ｔ Ｔからｌ０ＷＡＴＴまで可変とした。ＹＡＧ
レーザーの集光径は１０ミクロンとした。A YAG laser light source 50 with a primary wavelength of 1 micron was used as a heating source. The YAG laser was applied in a pulsed manner at a reversal frequency of IKI (z).The power was 1.W.
It was made variable from AT T to 10WATT. YAG
The focused diameter of the laser was 10 microns.
ヘッドチップ３とヘッドベース２は第２図に示す構造で
、ヘッドベース２は真ちゅう材を用い）こ 。The head chip 3 and head base 2 have the structure shown in Fig. 2, and the head base 2 is made of brass material.
シリンダ１には、ＹＡＧレーザー光を貫通させるための
穴１１が設けられており、光源５０よりのＹＡＧレーザ
ー光は、直接ヘッドベース２の一部溶解部９に集光され
る。The cylinder 1 is provided with a hole 11 through which the YAG laser beam passes, and the YAG laser beam from the light source 50 is directly focused on the partially melted portion 9 of the head base 2 .
ヘッドチップ３の位置を顕微鏡５１で観察しつつ、先ｆ
ｌＷＡＴＴのパワーでヘッドベース一部溶解部９を直線
状に溶解した。その時のヘッドチップ２の移動量は０．
５ミクロンであり、重ねてＩＷＡＴＴのパワーで２回照
射すると移動量は初期より、１．５ミクロン移動した。While observing the position of the head chip 3 with the microscope 51,
The partially melted part 9 of the head base was melted linearly with the power of lWATT. The amount of movement of the head chip 2 at that time is 0.
The distance was 5 microns, and when irradiated twice with the power of IWATT, the amount of movement was 1.5 microns compared to the initial value.
第２図において、２１はヘッドチップ部変形前のｌ＼ラ
ッドップ３の位置を示し、２２は同変形後のヘッドチッ
プ３の位置を示している。In FIG. 2, 21 indicates the position of the l\\laptop 3 before the head chip portion is deformed, and 22 indicates the position of the head chip 3 after the same deformation.
この時のレーザー光のパルス列を直線状に照射すればヘ
ッドチップ３の姿勢を変化させることな（、ヘッド高さ
の方向に一様に変化させることができた。At this time, if the pulse train of laser light was irradiated in a straight line, the attitude of the head chip 3 could be uniformly changed in the direction of the head height without changing the attitude.
逆に、レーザー光のパルス列を非直線状又はテーパー状
に照射した場合は、ヘッドベースの変形は不均一となり
へラドアジマスの調整の要領を得ることができることも
可能であった。On the other hand, when the pulse train of laser light is irradiated in a non-linear or tapered manner, the deformation of the head base becomes non-uniform and it is also possible to obtain the key points for adjusting the radial azimuth.
ヘッドチップ３の移動量については、レーザー光のパワ
ーを増加すれば、１００ミクロンまで変形可能であった
が、ヘッドチップの姿勢はアジマスに誤差を生ずる結果
となり、あまり変形量を太き（しすぎると不都合が生じ
る。このため好ましくは、変形量を５ミクロン以内に押
えるべきである。Regarding the amount of movement of the head chip 3, it was possible to deform it up to 100 microns by increasing the power of the laser beam, but the posture of the head chip resulted in an error in azimuth, and the amount of deformation was too thick (too much). Therefore, preferably, the amount of deformation should be kept within 5 microns.
また第３図に示す如く、１つのへラドベースに４カ所の
可動部を設け、夫々にヘッドチップ３１゜３２．３３．
３４を実装した場合には、ヘッドベース熱溶解部９１，
９２．９３の溶解する体積を加減することにより、各々
のｌ＼ツノドさＨ，、Ｈ２゜Ｈ３，Ｈ４を任意に選択す
ることができる。Furthermore, as shown in FIG. 3, one helad base is provided with four movable parts, each with a head chip of 31°, 32°, 33°, and 32°, respectively.
34, the head base heat melting section 91,
By adjusting the volume of 92.93 to be dissolved, the respective l\horn heights H,, H2°H3, and H4 can be arbitrarily selected.
このように、ヘッドベース２のヘッドチップ部２０の一
部を熱溶解させ、その時の歪でもってヘッドベースを変
形させることにより、虫ビスを使うことなく、ヘッド高
さ調整が可能となる。また、部品点数も削減することが
でき、工程の合理化を行うことができる。In this way, by thermally melting a part of the head chip portion 20 of the head base 2 and deforming the head base with the distortion at that time, the head height can be adjusted without using any screws. Furthermore, the number of parts can be reduced, and processes can be rationalized.
尚、本実施例において、ＹＡＧレーザーを用いたが、熱
源としては、ＹＡＧレーザーに限らず、各種レーザ及び
可視光の集光でも可能である。In this example, a YAG laser was used, but the heat source is not limited to the YAG laser, and other types of lasers and condensed visible light can also be used.
また、あらかじめヘッドベースに溶解容易な構造にして
おくことも非常に効果的である。It is also very effective to form a structure that can be easily dissolved into the head base in advance.
発明の効果
以上の実施例より明らかなように、ヘッドベースのヘッ
ドチップ部の一部分を熱溶解させ、その変形を利用する
ことにより、ヘッドチップ部の位置調整が可能であり、
部品点数を減らすことにより、より信頼性の向上した磁
気記録再生装置を作ることができる。Effects of the Invention As is clear from the above embodiments, by thermally melting a portion of the head tip portion of the head base and utilizing the deformation, it is possible to adjust the position of the head tip portion.
By reducing the number of parts, a magnetic recording/reproducing device with improved reliability can be produced.
第１図は本発明の実施例におけるヘッドと加熱光源と、
ヘッド固定部との関係を示す要部断面図、第２図は本発
明の実施例のヘッドチップとヘッドベースの一部溶解部
と固定部を示す磁気ヘッドの斜視図、第３図は本発明の
他の実施例の複数個のヘッドチップを有する例を示す斜
視図、第４図は従来のヘッド位置決め方法を示す要部断
面図、第５図はその要部拡大概略図である。
２・・・・・・ヘッドベース、３・・・・・・ヘッドチ
ップ、９・・・・・・一部溶解部、２０・・・・・・ヘ
ッドチップ部、２１・・・・・・ヘッドチップ変形前の
位置、２２・・・・・・ヘッドベース一部溶解後のヘッ
ドチップ調整後の位置。
代理人の氏名 弁理士小鍜治明 ほか２名９−−− 曇
ｐ ジ容角早 寥）
５θ−・・ＹＡｅ レーデ−９を４
窮 １ 図
２゛−へ・ノドベース
Ｓ ヘ７トテソフ２
９−−一 帥 ５暮解帥
π−へ・／ドテソフ１帥
！２図
第３図
ｑ３ ２５FIG. 1 shows a head and a heating light source in an embodiment of the present invention,
FIG. 2 is a cross-sectional view of the main parts showing the relationship with the head fixing part, FIG. 2 is a perspective view of the magnetic head showing the partially melted part and fixing part of the head chip and head base according to the embodiment of the present invention, and FIG. 3 is the head chip according to the embodiment of the present invention. FIG. 4 is a sectional view of a main part showing a conventional head positioning method, and FIG. 5 is an enlarged schematic view of the main part. 2...Head base, 3...Head chip, 9...Partly melted part, 20...Head chip part, 21... Position before head chip deformation, 22...Position after head chip adjustment after head base partially melted. Name of agent: Patent attorney Haruaki Ogata and 2 other people -One Marshal, 5-year-old Kai-shu π--/Dotesov 1 Marshal! Figure 2 Figure 3 q3 25
Claims (6)
の一部分を、熱溶解し、その部分を境として前記ヘッド
チップ部を変形させ、前記ヘッドチップの位置を任意の
位置に位置決めすることを特長とする磁気ヘッドの位置
決め方法。(1) The head chip is positioned at any desired position by thermally melting a part of the head chip to which the head chip is fixed at the tip, and deforming the head chip using that part as a boundary. How to position the magnetic head.
体積で制御する請求項１記載の磁気ヘッドの位置決め方
法。(2) The method for positioning a magnetic head according to claim 1, wherein the position of the head chip is controlled by the volume of the head base to be dissolved.
して行う請求項１記載の磁気ヘッドの位置決め方法。(3) The magnetic head positioning method according to claim 1, wherein the thermal melting is performed by irradiating a pulse train of laser light in a straight line.
列を非直線状またはテーパ状に照射して熱溶解させ、前
記ヘッドチップ部先端に固定したヘッドチップのアジマ
ス調整を行う磁気ヘッドのアジマス調整方法。(4) A method for adjusting the azimuth of a magnetic head in which a part of the head chip is irradiated with a pulse train of laser light in a non-linear or tapered manner to thermally melt it, and the azimuth of the head chip fixed to the tip of the head chip is adjusted. .
プの相対位置が位置決めされた磁気ヘッド。(5) A magnetic head that has a partially melted portion in the head chip portion, and the relative position of the head chip is determined.
装置。(6) A magnetic recording/reproducing device comprising the magnetic head according to claim 5.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2328703A JP2563674B2 (en) | 1990-11-27 | 1990-11-27 | Magnetic head positioning method |
| US07/798,601 US5341256A (en) | 1990-11-27 | 1991-11-26 | Rotary head adjuster |
| EP91310896A EP0488658B1 (en) | 1990-11-27 | 1991-11-26 | Rotary head adjuster |
| DE69131955T DE69131955T2 (en) | 1990-11-27 | 1991-11-26 | Adjustment device for rotary heads |
| KR1019910021390A KR960009882B1 (en) | 1990-11-27 | 1991-11-27 | Rotary head adjuster |
| US08/205,726 US5450256A (en) | 1990-11-27 | 1994-03-04 | Rotary head adjuster |
| US08/427,587 US6185073B1 (en) | 1990-11-27 | 1995-04-24 | Rotary magnetic head having head base which is bent along thermal plastic deformation line |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2328703A JP2563674B2 (en) | 1990-11-27 | 1990-11-27 | Magnetic head positioning method |
| US07/798,601 US5341256A (en) | 1990-11-27 | 1991-11-26 | Rotary head adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04195813A true JPH04195813A (en) | 1992-07-15 |
| JP2563674B2 JP2563674B2 (en) | 1996-12-11 |
Family
ID=26572949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2328703A Expired - Fee Related JP2563674B2 (en) | 1990-11-27 | 1990-11-27 | Magnetic head positioning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563674B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870225B2 (en) | 2001-11-02 | 2005-03-22 | International Business Machines Corporation | Transistor structure with thick recessed source/drain structures and fabrication process of same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102715A (en) * | 1987-10-15 | 1989-04-20 | Sanyo Electric Co Ltd | Magnetic head device |
-
1990
- 1990-11-27 JP JP2328703A patent/JP2563674B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102715A (en) * | 1987-10-15 | 1989-04-20 | Sanyo Electric Co Ltd | Magnetic head device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870225B2 (en) | 2001-11-02 | 2005-03-22 | International Business Machines Corporation | Transistor structure with thick recessed source/drain structures and fabrication process of same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2563674B2 (en) | 1996-12-11 |
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