JPH01102715A - Magnetic head device - Google Patents
Magnetic head deviceInfo
- Publication number
- JPH01102715A JPH01102715A JP26026287A JP26026287A JPH01102715A JP H01102715 A JPH01102715 A JP H01102715A JP 26026287 A JP26026287 A JP 26026287A JP 26026287 A JP26026287 A JP 26026287A JP H01102715 A JPH01102715 A JP H01102715A
- Authority
- JP
- Japan
- Prior art keywords
- head chip
- composite material
- elastic body
- head
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 20
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920000554 ionomer Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229920006122 polyamide resin Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 239000000470 constituent Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 description 31
- 239000000853 adhesive Substances 0.000 description 30
- 238000001816 cooling Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- -1 iron Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はＶＴＲ（ビデオチープレコータ）等の磁気記録
再生装置に用いられる磁気ヘッド装置に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a magnetic head device used in a magnetic recording/reproducing device such as a VTR (video recorder).
（ロ） 従来の技術
従来、ヘッドチップを回転シリンダに取り付ける方法と
しては、例えば特開昭５６−＋５１０２５号公報（０１
１Ｂ５／４２） 等に開示されているものがある。(b) Conventional technology Conventionally, as a method of attaching a head chip to a rotating cylinder, for example, Japanese Patent Laid-Open No. 56-51025 (01
1B5/42) etc.
第５図は家庭用のＶＴＲに使用される回転２へラド方式
の磁気ヘッドをテープ摺接面側から観た平面図、第６図
は上記磁気ヘッドのＡ−Ａ′断面図である。FIG. 5 is a plan view of a two-rotation radial type magnetic head used in a home VTR, viewed from the tape sliding surface side, and FIG. 6 is a sectional view taken along line A-A' of the magnetic head.
図中、（１）は磁気ギャップ（２）を有するヘッドチッ
プで、該ヘッドチップ１１１は樹脂接着剤（３）により
ブラケット（４）に接着固定されている。前記ブラケッ
ト（４）はネジ（５）によりスペーサ（６）を介して回
転シリンダ（７）に固定されている。In the figure, (1) is a head chip having a magnetic gap (2), and the head chip 111 is adhesively fixed to a bracket (4) with a resin adhesive (3). The bracket (4) is fixed to the rotating cylinder (7) with a screw (5) via a spacer (6).
一方、磁気テープ上の記録フォーマットはＶＨ８規格等
によって定められており、磁気ヘッドチップの固定には
高い精度が要求される。そして、記録フォーマットで定
められた記録トラック上に正しく記録・再生を行うため
には、回転２ヘッド方式の場合、２つの磁気ヘッドの磁
気ギャップが同一回転面上に位置する必要がある。即ち
、第５図において磁気ギャップ（２）と回転シリンダ（
７）との距離（高低差）Ｈに高い精度が要求される。ま
た、回転シリンダ（７）が１８０回転する毎に、２つの
ヘッドチップ＋１１１１１の記録・再生動作が交互に切
シ換わるため、お互いの磁気ギャップ＋２１＋２）は前
記回転シリンダ＋７１の１８０対向する位置になくては
ならない。更に、磁気ギャップ（２）のアジマス角θも
記録フォーマットにより定められている。そして、これ
らの寸法や角度はスロー等の特殊再生ヘッドや回転消去
ヘッド等に対しても正確に規定する必要があり、更に長
時間の使用による摩耗が生じても維持されなければなら
ない。また、回転中心軸（８）と磁気ギャップ（２）と
の距離Ｒも磁気ヘッドと磁気テープとの接触を安定にす
るために重要な値であり高い精度が要求される。On the other hand, the recording format on the magnetic tape is determined by the VH8 standard, etc., and high precision is required for fixing the magnetic head chip. In order to correctly perform recording and reproduction on the recording track defined by the recording format, in the case of the two-rotating head system, the magnetic gaps of the two magnetic heads must be located on the same rotating surface. That is, in FIG. 5, the magnetic gap (2) and the rotating cylinder (
7) High accuracy is required for the distance (height difference) H. Also, every time the rotary cylinder (7) rotates 180 times, the recording/reproducing operations of the two head chips +11111 are switched alternately, so the mutual magnetic gap +21+2) is not at a position 180 times opposite to the rotary cylinder +71. must not. Furthermore, the azimuth angle θ of the magnetic gap (2) is also determined by the recording format. These dimensions and angles also need to be accurately defined for special reproduction heads such as slow ones, rotary erasing heads, etc., and must also be maintained even if wear occurs due to long-term use. Further, the distance R between the rotation center axis (8) and the magnetic gap (2) is also an important value for stabilizing the contact between the magnetic head and the magnetic tape, and requires high accuracy.
従来、磁気ヘッドのシリンダへの固定は、先ずヘッドチ
ップ（１１を作製する際、磁気ギャップ（２１と（９ｃ
ｉ′−〇）の角度をなす面（１ａ）をつくり、この面（
１ａ）を貼り合わせ面としてブラケット（４）の貼り合
わせ面（４ａ）に当接させ、樹脂接着剤１３）によりヘ
ッドチップ（１１をブラケット（４）に固定する。次に
、前記ブラケット（４）をスペーサ（６）゛を介して回
転シリンダ（７）にネジ（５）止め固定する。この時、
ブラケット（４）の貼り合わせ面（４ａ）に十分な平面
度を持たせスペーサ（６）の当接面（６ａ）（６ｂ）に
十分な平行度を持たせ、且つ回転シリンダ（７）の取付
面（７ａ）を回転中心軸（８）に対して垂直にすれば磁
気ギャップ（２）に正確なアジマス角０を持たせること
が出来る。また、ヘッドチップ山を作製する際、該ヘッ
ドチップ（１）の面（１ａ）と磁気ギャップ（２）との
距離りと角度（９０′−〇）との両方を精度曳く加工す
ることは困難である。このため、通常は角度（“９０°
−〇）の精度を優先して加工を行い、距離りのバラツキ
に対してはスペーサ（６）の厚さを調整することで対応
し、磁気ギャップ（２）と回転シリンダ（７）との距離
Ｈを所定寸法にしている。Conventionally, to fix a magnetic head to a cylinder, first, when manufacturing the head chip (11), the magnetic gap (21 and (9c)
Create a surface (1a) that forms an angle of i'-〇), and this surface (
1a) is brought into contact with the bonding surface (4a) of the bracket (4) as the bonding surface, and the head chip (11) is fixed to the bracket (4) with a resin adhesive 13).Next, the head chip (11) is fixed to the bracket (4) with the resin adhesive 13). is fixed to the rotating cylinder (7) via the spacer (6) with the screw (5). At this time,
The bonding surface (4a) of the bracket (4) has sufficient flatness, the contact surfaces (6a) (6b) of the spacer (6) have sufficient parallelism, and the rotating cylinder (7) is attached. By making the surface (7a) perpendicular to the rotation center axis (8), the magnetic gap (2) can have an accurate azimuth angle of 0. Furthermore, when manufacturing the head chip mountain, it is difficult to accurately process both the distance and angle (90'-〇) between the surface (1a) of the head chip (1) and the magnetic gap (2). It is. For this reason, the angle (“90°
Processing is performed with priority given to the accuracy of -〇), and variations in distance are dealt with by adjusting the thickness of the spacer (6), and the distance between the magnetic gap (2) and the rotating cylinder (7) is H has a predetermined size.
しかし乍ら、この従来の固定方法では、ブラケット（４
）、スペーサ（６）、ネジ（５１等の固定部材が必要で
あり、特にスペーサ（６）は厚さの異なるものを多数用
意しておき、その中から最適なものを選ぶ必要があり、
コスト高になる。また、前述の固定部材はヘッドチップ
（１１に比べ重く回転シリンダのバランスを取りにくく
、回転シリンダを小型化する場合、寸法的に不利である
。However, in this conventional fixing method, the bracket (4
), spacers (6), screws (51, etc.) are required, and in particular, spacers (6) need to be prepared in a number of different thicknesses, and it is necessary to select the most suitable one from among them.
The cost will be high. Further, the above-mentioned fixing member is heavier than the head chip (11) and difficult to balance the rotating cylinder, which is disadvantageous in size when downsizing the rotating cylinder.
また、一部のＶＴＲでは特殊再生時の画質向上のために
、第７図に示すように２つの異なるアジマス角θを持っ
た磁気キャップ（９ａ）（９ｂ）を有するヘッドチップ
（１０ａ）（１０ｂ）が１枚のブラケット（４）上に樹
脂接着剤（３）により固定されたダブルアジマス磁気ヘ
ッドが使用されている。In some VTRs, in order to improve the image quality during special playback, head chips (10a) (10b) have magnetic caps (9a) (9b) with two different azimuth angles θ, as shown in FIG. ) is used, which is a double azimuth magnetic head fixed on one bracket (4) with a resin adhesive (3).
そしてこのダブルアジマス磁気ヘッドでは、磁気ギャッ
プ（９ａ）（９ｂ）間の距離ｄを再生信号に含まれる水
平同期信号の１周期に相当する回転シリンダの回転距離
の整数倍にする必要があり、高精度が要求される。In this double azimuth magnetic head, the distance d between the magnetic gaps (9a) and (9b) must be an integral multiple of the rotational distance of the rotating cylinder corresponding to one period of the horizontal synchronization signal included in the reproduction signal, Accuracy is required.
第８図はダブルアジマス磁気ヘッドをテープ摺接面側か
ら観た図、第９図、第１０図は夫々、上記ダブルアジマ
ス磁気ヘッドの側面図、上面図である。FIG. 8 is a view of the double azimuth magnetic head viewed from the tape sliding surface side, and FIGS. 9 and 10 are a side view and a top view of the double azimuth magnetic head, respectively.
このダブルアジマス磁気ヘッドでは、一方のヘッドチッ
プ（１１ａ）の厚みに対して他方のヘッドチップ（１１
ｂ ）の厚みは小さく設定されている。In this double azimuth magnetic head, the thickness of one head chip (11a) is greater than the thickness of the other head chip (11a).
The thickness of b) is set small.
小さい方のヘッドチップ（１１ｂ）はブラケット（４）
の貼り合わせ面（４ａ）と磁気ギャップ（１２ｂ）との
距離がｈｌとなるように第９図に示すように傾斜した状
態でヘッドチップ後部の陵（１３でブラケット（４）と
接しており、磁気ギャップ（１２ｂ）は大きい方のヘッ
ドチップ（１１ａ）の磁気ギャップ（１２ａ）に揃って
いる。また、樹脂接着剤（３）としては、浸透性が高く
、低粘度のものであり、且つ硬化速度の速いものが適し
ている。このため、樹脂接着剤（３１としてはシアノア
クツレート樹脂系接着剤等が使用されるが、一般に顔料
を含んだ高粘度樹脂系接着剤と比べて接着強度が弱い。The smaller head chip (11b) is attached to the bracket (4)
The ridge (13) at the rear of the head chip is in contact with the bracket (4) in an inclined state as shown in FIG. 9 so that the distance between the bonding surface (4a) and the magnetic gap (12b) is hl, The magnetic gap (12b) is aligned with the magnetic gap (12a) of the larger head chip (11a).The resin adhesive (3) has high permeability, low viscosity, and hardening. A resin adhesive with a high speed is suitable.For this reason, a resin adhesive (such as a cyanoactuate resin adhesive is used as 31), but it generally has a lower adhesive strength than a high viscosity resin adhesive containing pigments. weak.
また、第５図及び第６図に示す磁気ヘッドにおいて、ヘ
ッドチップ１１１を樹脂接着剤（３）によりブラケット
（４）に接着固定する際、ヘッドチップ（１）とブラケ
ット（４）との間に樹Ｉ１８接溜剤の薄い層が形成され
ていなければ前記ヘッドチップ＋１１はその側面のみで
ブラケット（４）に固定されることになるので、その接
着強度は弱い。そして、ヘッドチップは１及びプラタン
） （４１の貼り合わせ面（１ａ）（４ｇ）を共に鏡面
にした場合、この両方の面（１ａ）（４ａ）を衝き合わ
せた後、樹脂接着剤（３）を滴下してもこの両方の面（
１ａ）（４ａ）間には浸透せず接着強度が弱い、また、
予め、樹脂接着剤を貼り合わせ面（１ａ）（４ａ）に塗
布した後、両者を衝き合わせる方法は、樹脂接着剤（３
）の硬化時間内に位置決めを完了する必要があり困難で
ある。In addition, in the magnetic heads shown in FIGS. 5 and 6, when the head chip 111 is adhesively fixed to the bracket (4) with the resin adhesive (3), there is a gap between the head chip (1) and the bracket (4). If the thin layer of the wood I18 adhesive is not formed, the head chip +11 will be fixed to the bracket (4) only by its side surfaces, and the adhesive strength will be weak. Then, the head chip is 1 and the platen) Even if you drop it on both sides (
1a) It does not penetrate between (4a) and the adhesive strength is weak, and
After applying resin adhesive to the bonding surfaces (1a) and (4a) in advance, the method of abutting the two is to apply resin adhesive (3
) It is difficult to complete the positioning within the curing time.
従って、ヘッドチップ＋１１とブラケット（４）との貼
り合わせ面（１ａ）（４ａ）の一方若しくは両方を粗面
にして樹脂接着剤（３）の浸透性を向上させる方法があ
る。しかし乍ら、貼り合わせ面（１ａ）（４ａ）へ２透
に十そな粗さ（１２，５５以上）を持たせた場合、磁気
ヘッドの全体的な平面度又は平行度を高くすることが出
来ず、通常は不十分な粗さ（６，３Ｓ以下）であり、ヘ
ッドチップ＋１１とブラケット（４）との接着強度が不
十分である。Therefore, there is a method of roughening one or both of the bonding surfaces (1a) and (4a) between the head chip +11 and the bracket (4) to improve the permeability of the resin adhesive (3). However, if the bonding surfaces (1a) and (4a) have a roughness of 2.5 mm or more (12.55 or more), it is possible to increase the overall flatness or parallelism of the magnetic head. The roughness is usually insufficient (6.3S or less), and the adhesive strength between the head chip +11 and the bracket (4) is insufficient.
また、ダブルアジマス磁気ヘッドにおいては、一方のヘ
ッドチップ（１１を先にブラケット（４）に接着する際
、粘度の低い接着剤が流れ広がるため、他方のヘッドチ
ップ（１１の接着が困難になる。Furthermore, in the double azimuth magnetic head, when one head chip (11) is first bonded to the bracket (4), the adhesive with low viscosity flows and spreads, making it difficult to bond the other head chip (11).
また、上述の欠点を解消した磁気ヘッドとしては、第１
１図に示すようにヘッドチップＩｌ＋とブラケット（４
）との間に圧縮復元力をもつ多孔質弾性体Ｉを挟持させ
、該多孔質弾性体α４を位置決め加圧部材（図示せず）
により適当な形状・に圧縮変形させた後、前記多孔質弾
性体Ｉに樹脂接着剤αＳを含浸させ復合化すると同時に
前記ヘッドチップ（１１を所定のアジマス角度と回転軸
方向寸法でブラケット（４）に固定したものがある。こ
の磁気ヘッドはヘッドチップ（１）に多少の寸法誤差が
存在しても、（支）足部材を多数用いることなしに前記
ヘッドチップ【１１を所定の位置に正確に接着固定出来
、回転シリンダの小屋軽量化及び１つの回転シリンダに
搭載出来るヘッドテップｉｌ＋の数の増加を実現出来る
。In addition, as a magnetic head that eliminates the above-mentioned drawbacks, the first
As shown in Figure 1, attach the head chip Il+ and bracket (4
) A porous elastic body I having a compressive restoring force is sandwiched between the porous elastic body α4 and a pressure member (not shown) for positioning the porous elastic body α4.
After compressing and deforming the porous elastic body I into an appropriate shape, the porous elastic body I is impregnated with a resin adhesive αS and deformed, and at the same time, the head chip (11) is attached to a bracket (4) at a predetermined azimuth angle and dimension in the rotational axis direction. Even if there is some dimensional error in the head chip (1), this magnetic head can accurately place the head chip (11) in a predetermined position without using a large number of (supporting) foot members. It can be fixed with adhesive, making it possible to reduce the weight of the rotary cylinder and increase the number of head tips that can be mounted on one rotary cylinder.
しかし乍ら、この磁気ヘッド装置の場合シアノアクリレ
ート系接着剤等の熱硬化性の樹脂接着剤を吸収して硬化
した多孔質弾性体１４を再び軟化させヘッドチップ（１
１の取付位置を修正したり、ヘッドチップ＋１１を取り
外し九りすることは困難である。However, in the case of this magnetic head device, the porous elastic body 14 that has absorbed and hardened a thermosetting resin adhesive such as a cyanoacrylate adhesive is softened again and the head chip (1
It is difficult to correct the mounting position of head chip +11 or to remove and remove head chip +11.
即ち、−度ヘッドチツプ（１）をブラケット（４１に固
定させると、例え取付位置にズレが生じていても、前記
ヘッドチップ（１）の位置を修正することは困難である
。また、回転シリンダ（７１上に搭載されている複数の
ヘッドチップ１１＋のうち１個でも、摩耗或いは破損等
によって記録、再生機能を失うと、この機能を失つたヘ
ッドチップｉｌ＋だけを交換することは困難であり、回
転シリンダ（７）ごと交換しなくてはならず、極めて不
経済である。That is, when the -degree head chip (1) is fixed to the bracket (41), it is difficult to correct the position of the head chip (1) even if the mounting position is misaligned. If even one of the multiple head chips 11+ mounted on the 71 loses its recording and playback functions due to wear or damage, it is difficult to replace just the head chip il+ that has lost this function, and the rotation The entire cylinder (7) must be replaced, which is extremely uneconomical.
（ハ）発明が解決しようとする問題点
本発明は上記従来例の欠点に謹みなされたものであり、
ヘッドチップに多少の寸法誤差が存在しても別途固定部
材を多数用いることなく前記ヘッドチップを容易にしか
も正確に位置決め固定出来、しかも前記ヘッドチップの
取付位置を修正可能にした磁気ヘッド装置を提供するこ
とを目的とするものである。(C) Problems to be Solved by the Invention The present invention has been made in consideration of the drawbacks of the above-mentioned conventional examples.
To provide a magnetic head device in which the head chip can be easily and accurately positioned and fixed without using a large number of separate fixing members even if there is some dimensional error in the head chip, and the mounting position of the head chip can be corrected. The purpose is to
に）問題点を解決するための手段
磁気ギャップを有するヘッドチップを弾性体に熱′ｑ塑
性樹脂を含浸させた複合材支持体を介してヘッドチップ
取付部に接着固定する。B) Means for Solving the Problems A head chip having a magnetic gap is adhesively fixed to a head chip mounting portion through a composite support made of an elastic body impregnated with a thermoplastic resin.
（ホ）作 用
上記構成に依れば、複合材支持体の圧縮量及び圧縮角度
を変えることによりヘッドチップを所定の位置に正確に
接着固定出来、しかも硬化した複合材支持体を加熱する
と、その構成要素である熱可塑性樹脂により該複合材支
持体は軟化してヘッドチップの取付位置を変更出来る。(E) Effect According to the above configuration, the head chip can be accurately adhesively fixed in a predetermined position by changing the compression amount and compression angle of the composite material support, and when the hardened composite material support is heated, The composite material support is softened by the thermoplastic resin that is its component, so that the mounting position of the head chip can be changed.
（へ）実施例
以下、図面を参照しつつ本発明の一実施例を詳細に説明
する。(F) Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第１図は本実施例の磁気ヘッド装置をテープ摺であり、
第５図及び第６図と同一部分には同一符号を付し、その
説明は第５図及び第６図の説明を援用する。FIG. 1 shows the magnetic head device of this embodiment as a tape slider.
The same parts as in FIGS. 5 and 6 are denoted by the same reference numerals, and the explanations of FIGS. 5 and 6 are referred to.
図中、（ｌ［９はガラス繊維等の繊維質弾性体若しくは
高発泡ポリウレタン樹脂等の多孔質弾性体のうち一方、
或いは両方からなる弾性体に予め熱可塑性樹脂を含浸さ
せた複合材支持体であり、該複合材支持体（１６１はエ
ポキシ系の第１、第２接着剤（１７）（１８１を介して
ヘッドチップ（１１と回転シリンダ（ヘッドチップ取付
部）（７）との間に接着固定されている。In the figure, (l [9 is one of a fibrous elastic body such as glass fiber or a porous elastic body such as a highly foamed polyurethane resin,
Alternatively, it is a composite material support in which an elastic body made of both is impregnated with a thermoplastic resin in advance, and the composite material support (161 is a head chip via the first and second epoxy adhesives (17) (181). (It is adhesively fixed between 11 and the rotating cylinder (head chip attachment part) (7).
また、前記複合材支持体σｅはその構成部材の１つであ
る熱可塑性樹脂の融点以上で圧縮力のない自由状態と比
較して圧縮変形された状態である。Further, the composite material support σe is in a compressed and deformed state at a temperature higher than the melting point of the thermoplastic resin, which is one of its constituent members, compared to a free state with no compressive force.
次に、本実施例の磁気ヘッド装置の組み立て手順につい
て説明する。先ず、第３図に示すように回転シリンダ（
７１にエポキシ系の第１接着剤（１７）を介して繊維質
弾性体と多孔質弾性体のうち一方、或いは両方からなる
弾性体に予め熱可塑性樹脂を含浸させた複合材支持体α
ｅを接着し、該複合材支持体住ｅの前記回転シリンダ（
７）とは反対側の面に第２接着剤α＆を介してヘッドチ
ップ１１１を接着する。鰻は加熱冷却位置決め加圧部材
で、この段階では前記位置決め加圧部材Ｕ＆は前記ヘッ
ドチップＩｌｌと接触していない。即ち前記複合材支持
体ｔｔｅは圧縮されておらず、自由状態である。尚、こ
の時の回転シリンダ（７１の取付面（７ａ）と磁気ギャ
ップ（２）との距離がＨ′になるように前記複合材支持
体（１６）の寸法は設計されている。Next, a procedure for assembling the magnetic head device of this embodiment will be explained. First, as shown in Fig. 3, a rotating cylinder (
71, a composite material support α in which an elastic body made of one or both of a fibrous elastic body and a porous elastic body is pre-impregnated with a thermoplastic resin via an epoxy-based first adhesive (17).
Glue the rotary cylinder of the composite support body e (
The head chip 111 is adhered to the surface opposite to 7) via a second adhesive α&. The eel is a heating/cooling positioning/pressing member, and at this stage, the positioning/pressing member U& is not in contact with the head chip Ill. That is, the composite support tte is not compressed and is in a free state. The dimensions of the composite material support (16) are designed so that the distance between the mounting surface (7a) of the rotating cylinder (71) and the magnetic gap (2) at this time is H'.
次に、第４図に示すようにヘッドチップ（１）の複合材
支持体（１６１とは反対側の面に加熱冷却位置決め加圧
部材側を当接させ、前記複合材支持体（１６１の構成部
材の１つである熱可塑性樹脂の軟化点よりも高温に加熱
して前記複合材支持体ｔＬｌ１９を軟化させる。Next, as shown in FIG. 4, the heating, cooling, positioning and pressing member side is brought into contact with the surface of the head chip (1) opposite to the composite material support (161), and the structure of the composite material support (161) is The composite support tLl19 is softened by heating to a higher temperature than the softening point of the thermoplastic resin, which is one of the members.
そして、前記加熱冷却位置決め加圧部材（ｌｌ’０を用
いて前記複合材支持体（１６１を−Ｚ方向に加圧して、
該複合材支持体ａｅを圧縮変形させる。この時、前記複
合材支持体ａＯを構成する弾性体のもつ復元力により前
記ヘッドチップ（１）は前記加熱冷却位置決め加圧部材
αａに密着する。この加圧作業により前記ヘッドチップ
（１）を前記複合材支持体（ＩＱを伸縮させながら移動
させ、距離「を所定の距！Ｈに調整する。また、前記加
熱冷却位置決め加圧部材（１１（１を傾けることにより
磁気ギャップ（２）のアジマス角θを所定の角度に調整
することが出来る。Then, pressurize the composite material support (161) in the -Z direction using the heating/cooling positioning pressurizing member (ll'0,
The composite support ae is compressively deformed. At this time, the head chip (1) is brought into close contact with the heating/cooling positioning/pressing member αa due to the restoring force of the elastic body constituting the composite material support aO. Through this pressurizing operation, the head chip (1) is moved while expanding and contracting the composite material support (IQ), and the distance ``is adjusted to a predetermined distance!H. By tilting the magnetic gap (2), the azimuth angle θ of the magnetic gap (2) can be adjusted to a predetermined angle.
また、この際第４図に示すようにヘッドチップ（１）を
加熱冷却位置決め加圧部材α＆の凹部（１８ａ）に嵌め
込むか、或いは極めて弱い接着剤、粘着剤を用いたり、
真空、磁気等による吸着力を用いることにより、前記ヘ
ッドチップ（１１を前記位置決め加圧部材側に仮固定し
た後、該位置決め加圧部材（１８をＸ方向及びＸ方向に
移動させることにより前記ヘッドチップ（１１を所定位
置に移動させることが出来る。以上の操作によってヘッ
ドチップ（１１を所定の寸法・角度の位置に設置出来る
。At this time, as shown in FIG. 4, the head chip (1) may be fitted into the recess (18a) of the heating/cooling positioning/pressing member α&, or an extremely weak adhesive or adhesive may be used.
After temporarily fixing the head chip (11) to the positioning and pressing member side by using adsorption force such as vacuum or magnetism, the head chip (11) is moved in the X direction and the X direction. The chip (11) can be moved to a predetermined position. By the above operations, the head chip (11) can be installed at a position with a predetermined size and angle.
そして最後に、前記加熱冷却位置決め加圧部材Ｕの加熱
を停止し、自然または強制的に冷却することにより前記
複合材支持体αＱを硬化させて第１図に示す本実施例の
磁気ヘッド装置を形成する。Finally, the heating of the heating/cooling positioning and pressing member U is stopped, and the composite material support αQ is hardened by cooling naturally or forcibly, and the magnetic head device of this embodiment shown in FIG. 1 is completed. Form.
また、第１図の磁気ヘッド装置の複合材支持体住ｅを再
度加熱すると、前記複合材支持体四はその構成部材であ
る熱可塑性樹脂により軟化するため、ヘッドチップ＋１
１の取付位置を修正することが出来る。また、ヘッドチ
ップ＋１１を取り外すことも出来る。Furthermore, when the composite material support member 4 of the magnetic head device shown in FIG.
The mounting position of 1 can be corrected. Further, the head chip +11 can also be removed.
前記複合材支持体（１６１は硬化状態での強度１寸法安
定性と共に成形収縮率の小さいことが要求される。仮に
、前記複合材支持体（１６１の成形収縮率が大きく、該
複合材支持体σｅを軟化状態から硬化状態に移行させる
際、前記複合材支持体Ｃ１６１に極端は収縮があればヘ
ッドチップ（１１を加熱冷却位置決め加圧部材α＆に密
着する力が弱く、ヘッドチップ（１１の位置決め精度が
悪化する。The composite material support (161) is required to have strength and one-dimensional stability in the cured state, as well as a small molding shrinkage rate. When shifting σe from a softened state to a hardened state, if there is extreme contraction in the composite support C161, the force of adhering the head chip (11) to the heating, cooling and positioning pressurizing member α& is weak, and the positioning of the head chip (11) Accuracy deteriorates.
因に、ヘキサメチレンジアミンとアジミン酸を縮重合し
て形成されるポリアミド系樹脂（登録商標＆６ナイロン
；デュポン■製）よりなる熱可塑性樹脂と、該熱可塑性
樹脂にガラス繊維を３０％混入させた複合材支持体との
特性は下表に示す通りである。Incidentally, a thermoplastic resin made of polyamide resin (registered trademark & 6 nylon; manufactured by DuPont ■) formed by condensation polymerization of hexamethylene diamine and azimic acid, and 30% glass fiber mixed into the thermoplastic resin. The characteristics of the composite support are shown in the table below.
上表から判るように、熱可塑性樹脂の単体に比べて該単
体にガラス繊維を混入させた複合材支持体は十分な強度
を有する。As can be seen from the above table, the composite material support in which glass fiber is mixed into the thermoplastic resin alone has sufficient strength.
また、ポリアミド系樹脂の成形収縮率はｔ５％程度であ
り、第４図に示す加圧時に前記樹脂を有する通夜合材支
持体αｅを前述の成形収縮率の１゜倍以上に圧縮してお
けば、硬化時においてもヘッドチップは１は力Ω熱冷却
位置決め加圧部材ｔｌ＆に十分な力で圧接され、位置精
度は劣化しない。また、前記複合材支持体（ｌＥ９への
ガラス繊維の混入率を高めるか、ガラス繊維を予め適当
な形状に成型しておくか、或いは別の弾性体を併用する
ことにより更に前記複合材支持体Ｃ１６１の弾性を高め
、上述の圧接力を向上させることも可能である。In addition, the molding shrinkage rate of polyamide resin is about t5%, and when pressurizing as shown in FIG. For example, even during hardening, the head chip 1 is pressed against the thermal cooling positioning pressurizing member tl& with a sufficient force of Ω, so that the positional accuracy does not deteriorate. In addition, the composite material support may be further improved by increasing the mixing ratio of glass fibers into the composite material support (lE9), by molding the glass fibers into an appropriate shape in advance, or by using another elastic body in combination. It is also possible to increase the elasticity of C161 and improve the above-mentioned pressure contact force.
また、前記複合材支持体（ｌｅの構成部材である熱可塑
性樹脂として、回転シリンダ（７）の材質であるアルミ
ニウム等の金属とヘッドチップ１１１の材質である鉄系
合金等の金属或いは酸化第二鉄等の金属酸化物に対して
は十分な接着力を有すアイオノマ樹脂を用いると、第１
、第２接着剤（１７１ａ８１を用いずに前記複合材支持
体−は第４図に示す位置決め後の硬化時に、前記アイオ
ノマ樹脂の接着性により前記回転シリンダ（７１と前記
ヘッドテップＩｌ＋に接着固定される。In addition, as the thermoplastic resin that is a component of the composite material support (le), metal such as aluminum that is the material of the rotating cylinder (7), metal such as an iron-based alloy that is the material of the head chip 111, or a metal such as a second oxide When using an ionomer resin that has sufficient adhesive strength for metal oxides such as iron, the first
, without using the second adhesive (171a81), the composite material support is adhesively fixed to the rotary cylinder (71) and the head tip Il+ by the adhesive properties of the ionomer resin during curing after positioning as shown in FIG. Ru.
尚、上述の実施例ではへラドチップ＋１１を回転シリン
ダ（７１に直接取り付けているが、ブラケット等の他の
部材を介して取り付けることも可能である。In the above-described embodiment, the Herad tip +11 is directly attached to the rotating cylinder (71), but it can also be attached via other members such as a bracket.
上述のような磁気ヘッド装置では、複合材支持体σＧを
加熱圧縮させた状態で加熱冷却位置決め部材ｔｌＳを傾
けたり、移動させた後冷却することにょ夛、別途ネジ等
の固定部材を多数用いることなしに所定の寸法、角度に
正確にヘッドチック（１）を回転シリンダ（７）に直接
固定することが出来、小型軽量化を図れる。また、前記
複合材支持体ａＱを再び加熱して軟化させることにより
ヘッドチップ（１）の磁気ギャップ（２）の位置を再調
整可能とし、また、ヘッドチップＩｌ＋を交換すること
も可能となる。また、アイオノマ樹脂を熱可塑性樹脂と
して用いた場合％第１、第２接着剤（１７）（１８１を
必要としないため。In the above-described magnetic head device, the heating/cooling positioning member tLS is tilted or moved while the composite material support σG is heated and compressed, and then a large number of fixing members such as screws are used. The head tick (1) can be directly fixed to the rotary cylinder (7) accurately at a predetermined size and angle without the need for a head tick, making it possible to reduce the size and weight. Furthermore, by heating the composite material support aQ again to soften it, the position of the magnetic gap (2) of the head chip (1) can be readjusted, and the head chip Il+ can also be replaced. Further, when an ionomer resin is used as a thermoplastic resin, the first and second adhesives (17) (181) are not required.
ダブルアジマス磁気ヘッドにおける製造工程において、
先に接着したヘッドチップの周囲に接着剤が流れ出し、
それによりもう一つのヘッドチップを固定することが困
難になることが防止される。In the manufacturing process of double azimuth magnetic heads,
Adhesive flows out around the head chip that was glued first,
This prevents difficulty in fixing another head chip.
（ト）発明の効果
本発明に依れば、ヘッドチックに多少の寸法誤差が存在
して、複合材支持体の圧縮状態を変えることによ〕、固
定部材を多数用いることなしに前記ヘッドチップを所定
の位置に正確に接着固定出来、しかもヘッドチップの取
付位置を容易に修正することが出来る磁気ヘッド装置を
提供し得る。(G) Effects of the Invention According to the present invention, by changing the compression state of the composite material support when there is some dimensional error in the head tick, the head chip can be fixed without using a large number of fixing members. It is possible to provide a magnetic head device in which the head chip can be accurately adhesively fixed in a predetermined position, and the mounting position of the head chip can be easily corrected.
＠１因乃至第４図は本発明に係り、第１図は磁気ヘッド
装置をテープ摺接面側から観た図、第２図は第１図のＢ
−Ｊ断面図、第３＠及びｔＭ４図は夫々上記磁気ヘッド
装置の製造方法を示す図である。第５図乃至第１１図は
従来例に係り、第５図は磁気ヘッド装置をテープ摺接面
側から観た図、第６図は第５図のＡ−入断面図、第７図
、第８図、＄９図及び第１０図は夫々ダブルアジマス磁
気ヘッドを示す図、第１１図は他の従来の磁気ヘッド装
置をテープ摺接面側から観た図である。
（１１・・・ヘッドチップ （２）・・・磁気ギャッ
プ（７）・・・回転シリンダ（ヘッドチップ取付部）顛
・・・複合材支持体Figures 1 to 4 relate to the present invention; Figure 1 is a view of the magnetic head device viewed from the tape sliding surface side, and Figure 2 is B of Figure 1.
-J cross-sectional view, 3rd @ and tM4 are views showing a method of manufacturing the magnetic head device, respectively. 5 to 11 relate to conventional examples, FIG. 5 is a view of the magnetic head device viewed from the tape sliding surface side, FIG. 6 is a sectional view taken along line A in FIG. 5, and FIGS. 8, 9, and 10 each show a double azimuth magnetic head, and FIG. 11 is a view of another conventional magnetic head device viewed from the tape sliding surface side. (11...Head chip (2)...Magnetic gap (7)...Rotating cylinder (head chip attachment part)...Composite material support
Claims (8)
可塑性樹脂を含浸させた複合材支持体を介してヘッドチ
ップ取付部に接着固定したことを特徴とする磁気ヘッド
装置。(1) A magnetic head device characterized in that a head chip having a magnetic gap is adhesively fixed to a head chip mounting portion via a composite support made of an elastic body impregnated with a thermoplastic resin.
る特許請求の範囲第１項記載の磁気ヘッド装置。(2) The magnetic head device according to claim 1, wherein the elastic body is a fibrous elastic body.
る特許請求の範囲第１項記載の磁気ヘッド装置。(3) The magnetic head device according to claim 1, wherein the elastic body is a porous elastic body.
なることを特徴とする特許請求の範囲第１項記載の磁気
ヘッド装置。(4) The magnetic head device according to claim 1, wherein the elastic body comprises a fibrous elastic body and a porous elastic body.
とする特許請求の範囲第２項若しくは第４項記載の磁気
ヘッド装置。(5) The magnetic head device according to claim 2 or 4, wherein the fibrous elastic body is glass fiber.
徴とする特許請求の範囲第３項若しくは第４項記載の磁
気ヘッド装置。(6) The magnetic head device according to claim 3 or 4, wherein the porous elastic body is a foamed resin material.
を特徴とする特許請求の範囲第１項記載の磁気ヘッド装
置。(7) The magnetic head device according to claim 1, wherein the thermoplastic resin is a polyamide resin.
特徴とする特許請求の範囲第１項記載の磁気ヘッド装置
。(8) The magnetic head device according to claim 1, wherein the thermoplastic resin is an ionomer resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62260262A JP2538281B2 (en) | 1987-10-15 | 1987-10-15 | Magnetic head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62260262A JP2538281B2 (en) | 1987-10-15 | 1987-10-15 | Magnetic head device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01102715A true JPH01102715A (en) | 1989-04-20 |
| JP2538281B2 JP2538281B2 (en) | 1996-09-25 |
Family
ID=17345606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62260262A Expired - Lifetime JP2538281B2 (en) | 1987-10-15 | 1987-10-15 | Magnetic head device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538281B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04195813A (en) * | 1990-11-27 | 1992-07-15 | Matsushita Electric Ind Co Ltd | Positioning of magnetic head |
| JPH0628644A (en) * | 1992-04-15 | 1994-02-04 | Matsushita Electric Ind Co Ltd | Method for adjusting height of magnetic head |
| JPH0628645A (en) * | 1992-06-23 | 1994-02-04 | Matsushita Electric Ind Co Ltd | Method for adjusting magnetic head height |
| JPH06290433A (en) * | 1992-03-17 | 1994-10-18 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic head |
| FR2968446A1 (en) * | 2010-12-07 | 2012-06-08 | Ingenico Sa | Device for holding magnetic reading head of magnetic card reader in payment terminal, has part made of material containing silicones, thermoplastics and elastomers with modulus of elasticity greater than specific value |
| WO2012076572A1 (en) * | 2010-12-07 | 2012-06-14 | Compagnie Industrielle Et Financiere D'ingenierie "Ingenico" | Device for supporting a magnetic reading head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870518A (en) * | 1971-12-22 | 1973-09-25 | ||
| JPS6079512A (en) * | 1983-10-04 | 1985-05-07 | Fuji Photo Film Co Ltd | Magnetic recording and reproducing device |
-
1987
- 1987-10-15 JP JP62260262A patent/JP2538281B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870518A (en) * | 1971-12-22 | 1973-09-25 | ||
| JPS6079512A (en) * | 1983-10-04 | 1985-05-07 | Fuji Photo Film Co Ltd | Magnetic recording and reproducing device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04195813A (en) * | 1990-11-27 | 1992-07-15 | Matsushita Electric Ind Co Ltd | Positioning of magnetic head |
| JPH06290433A (en) * | 1992-03-17 | 1994-10-18 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic head |
| JPH0628644A (en) * | 1992-04-15 | 1994-02-04 | Matsushita Electric Ind Co Ltd | Method for adjusting height of magnetic head |
| JPH0628645A (en) * | 1992-06-23 | 1994-02-04 | Matsushita Electric Ind Co Ltd | Method for adjusting magnetic head height |
| FR2968446A1 (en) * | 2010-12-07 | 2012-06-08 | Ingenico Sa | Device for holding magnetic reading head of magnetic card reader in payment terminal, has part made of material containing silicones, thermoplastics and elastomers with modulus of elasticity greater than specific value |
| WO2012076572A1 (en) * | 2010-12-07 | 2012-06-14 | Compagnie Industrielle Et Financiere D'ingenierie "Ingenico" | Device for supporting a magnetic reading head |
| AU2011340560B2 (en) * | 2010-12-07 | 2016-09-08 | Compagnie Industrielle Et Financiere D'ingenierie "Ingenico" | Device for supporting a magnetic reading head |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538281B2 (en) | 1996-09-25 |
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