JP2916792B2 - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JP2916792B2 JP2916792B2 JP10522790A JP10522790A JP2916792B2 JP 2916792 B2 JP2916792 B2 JP 2916792B2 JP 10522790 A JP10522790 A JP 10522790A JP 10522790 A JP10522790 A JP 10522790A JP 2916792 B2 JP2916792 B2 JP 2916792B2
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- head
- magnetic head
- head core
- adhesive
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は磁気ヘツドに係わり、さらに詳しくは１対の
ヘツドコアと、このヘツドコアに狭持されるスペーサと
の接着面の改良に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head, and more particularly, to an improvement in a bonding surface between a pair of head cores and a spacer held between the head cores.
第３図に従来例による磁気ヘツドを示す。これは、１
対のヘツドコア6,6と、このヘツドコア6,6に狭持された
スペーサ７が積層構造をとるマルチトラツク磁気ヘツド
である。８はデイスクとの摺動面であり、９はヘツドコ
ア６とスペーサ７の対向面に接着剤を塗布して形成され
る接着層であり、スペーサ７の両側面の粗さに相当した
接着層９が形成され、それなりに良好にスペーサ７とヘ
ツドコア６とは接着されている。FIG. 3 shows a conventional magnetic head. This is 1
A pair of head cores 6,6 and a spacer 7 sandwiched between the head cores 6,6 are a multi-track magnetic head having a laminated structure. Numeral 8 is a sliding surface with the disk, and 9 is an adhesive layer formed by applying an adhesive to the opposing surface of the head core 6 and the spacer 7, and an adhesive layer 9 corresponding to the roughness of both side surfaces of the spacer 7. Is formed, and the spacer 7 and the head core 6 are properly bonded to each other.
ところで、スペーサ７とヘツドコア６を緊密に積層す
るためにスペーサ７の両側面には高速の平滑性が要求さ
れる。しかしながら上述のごとく、スペーサ７の接着層
のための粗さにより、要求される平滑性が得られなく、
精度が出せないという問題があつた。Incidentally, high-speed smoothness is required on both side surfaces of the spacer 7 in order to closely stack the spacer 7 and the head core 6. However, as described above, the required smoothness cannot be obtained due to the roughness of the adhesive layer of the spacer 7.
There was a problem that accuracy could not be obtained.
一方、スペーサ７をラツプすれば寸法精度は出せる
が、接着面がラツプ面とラツプ面の組合わせになるので
接着剤の浸透性が悪くなり、耐湿性や接着強度が低下す
る欠点がある。On the other hand, if the spacer 7 is wrapped, dimensional accuracy can be obtained, but since the bonding surface is a combination of the lapping surface and the lapping surface, there is a disadvantage that the permeability of the adhesive is deteriorated, and the moisture resistance and the bonding strength are reduced.
この発明は、上記従来製品が持つていたヘツドコアと
スペーサとの接着強度と接着寸法精度の要求が両立しな
いという欠点を解決し、以て寸法精度を確保し、接着性
の優れた磁気ヘツドを提供することを目的とする。The present invention solves the drawback that the requirements of the bonding strength between the head core and the spacer and the bonding dimensional accuracy required for the above-mentioned conventional products are not compatible with each other, thereby providing a magnetic head having high dimensional accuracy and excellent adhesiveness. The purpose is to do.
上記目的は、スペーサの両側面に１対のヘツドコアを
接着して構成された磁気ヘツドにおいて、スペーサの各
側面の外周部を平滑面とすると共に、内側に粗面を形成
することにより達成される。The above object is achieved by forming a pair of head cores adhered to both side surfaces of a spacer to form a smooth outer peripheral portion on each side surface of the spacer and forming a rough surface inside the magnetic head. .
スペーサの両側面の外周部を平滑性の高いラツプ面と
し、その内側を若干くぼんだ状態の粗面とする。そして
接着剤はこの粗面に塗布する。これにより上記の要求を
充たすことができる。The outer peripheral portions on both side surfaces of the spacer are wrapped surfaces having high smoothness, and the inner surface is a roughened surface with a slight depression. Then, an adhesive is applied to the rough surface. As a result, the above requirement can be satisfied.
以下、本発明の実施例を図面に基づき説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図はヘツドコアとスペーサの分解斜視図、第２図
はヘツドコアとスペーサを接着した状態の斜視図であ
る。FIG. 1 is an exploded perspective view of a head core and a spacer, and FIG. 2 is a perspective view of a state where the head core and the spacer are bonded.
第１図に示すように、１対のヘツドコア1,1と接着さ
れるスペーサ２の両側面には、それぞれ外周部に平滑面
（鏡面）2aが、またその内側には粗面2bが形成されてい
る。粗面2bは平滑面2aに対して若干くぼんでおり、ま
た、側面全体の80％以上の面積を占めている。そして接
着剤は、この粗面2Bに充填される。ヘツドコア１のスペ
ーサ２との対向面は鏡面仕上げとなつているため、ヘツ
ドコア１の鏡面仕上げ面とスペーサ２の平滑面2aとの接
触により両者の寸法精度を出しながら、粗面2bにより充
分な接着強度を得ることができる。As shown in FIG. 1, a smooth surface (mirror surface) 2a is formed on the outer peripheral portion, and a rough surface 2b is formed inside the spacer 2 on both side surfaces of the spacer 2 bonded to the pair of head cores 1, 1. ing. The rough surface 2b is slightly depressed with respect to the smooth surface 2a, and occupies 80% or more of the entire side surface. Then, the adhesive is filled in the rough surface 2B. The surface of the head core 1 facing the spacer 2 is mirror-finished, so that the mirror-finished surface of the head core 1 and the smooth surface 2a of the spacer 2 make contact with the smooth surface 2a of the head core 1 so that the dimensional accuracy of the two can be obtained, and the rough surface 2b provides sufficient adhesion. Strength can be obtained.
なお、平滑面2aは例えばRmaxが0.01μｍ以下、粗面2b
はRmaxが２μｍ以下程度である。The smooth surface 2a has, for example, Rmax of 0.01 μm or less, and the rough surface 2b
Rmax is about 2 μm or less.
また、図で３は摺動面、４は底面、５はスライダであ
る。In the figure, 3 is a sliding surface, 4 is a bottom surface, and 5 is a slider.
以上説明したように、本発明では、スペーサのヘツド
コアとの対向面に平滑面と粗面を形成し、粗面に接着剤
を塗布するようにしたから、平滑面により寸法精度を出
すと共に、粗面により接着強度を得ることができる。As described above, in the present invention, a smooth surface and a rough surface are formed on the surface of the spacer facing the head core, and the adhesive is applied to the rough surface. The adhesive strength can be obtained depending on the surface.
第１図はヘツドコアとスペーサの分解斜視図、第２図は
ヘツドコアとスペーサを接着した状態の斜視図、第３図
は従来例に係る磁気ヘツドの斜視図である。 １……ヘツドコア、２……スペーサ、2a……平滑面、2b
……粗面。FIG. 1 is an exploded perspective view of a head core and a spacer, FIG. 2 is a perspective view of a state where the head core and the spacer are bonded, and FIG. 3 is a perspective view of a conventional magnetic head. 1 ... head core, 2 ... spacer, 2a ... smooth surface, 2b
……Rough surface.
Claims (1)
着して構成された磁気ヘツドにおいて、スペースの各側
面に外周部を平滑面とすると共に、内側に粗面を形成し
たことを特徴とする磁気ヘツド。1. A magnetic head comprising a pair of head cores bonded to both side surfaces of a spacer, wherein the outer peripheral portion is smooth on each side surface of the space and a rough surface is formed on the inner side. Magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10522790A JP2916792B2 (en) | 1990-04-23 | 1990-04-23 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10522790A JP2916792B2 (en) | 1990-04-23 | 1990-04-23 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH046604A JPH046604A (en) | 1992-01-10 |
| JP2916792B2 true JP2916792B2 (en) | 1999-07-05 |
Family
ID=14401779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10522790A Expired - Lifetime JP2916792B2 (en) | 1990-04-23 | 1990-04-23 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2916792B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3206496B2 (en) * | 1997-06-02 | 2001-09-10 | 昭栄化学工業株式会社 | Metal powder and method for producing the same |
-
1990
- 1990-04-23 JP JP10522790A patent/JP2916792B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH046604A (en) | 1992-01-10 |
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