JPS5835720A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS5835720A JPS5835720A JP13107981A JP13107981A JPS5835720A JP S5835720 A JPS5835720 A JP S5835720A JP 13107981 A JP13107981 A JP 13107981A JP 13107981 A JP13107981 A JP 13107981A JP S5835720 A JPS5835720 A JP S5835720A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- shield case
- core
- magnetic head
- cores
- 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
- 239000000463 material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims 2
- 239000004020 conductor Substances 0.000 claims 1
- 230000005415 magnetization Effects 0.000 abstract description 2
- 229910000889 permalloy Inorganic materials 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 28
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 1
- 239000010956 nickel silver Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- G11B5/11—Shielding of head against electric or magnetic fields
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は磁気コアとシールドケースを電気的に導通させ
た磁気ヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic head in which a magnetic core and a shield case are electrically connected.
一般に磁気ヘッドにおいては静電気・渦電流等によりノ
イズ及びコアのｌｔ磁等が発生する。これらを軽減させ
る為には、磁気ヘッドに使用される磁気コアをシールド
ケースと導通させ該磁気コアをアースしなければならな
い。Generally, in a magnetic head, noise and lt magnetism of the core are generated due to static electricity, eddy current, etc. In order to reduce these problems, the magnetic core used in the magnetic head must be electrically connected to the shield case and the magnetic core must be grounded.
磁気ヘッドの一般的な製造方法を第１図（ａ） 、 （
ｋｌ及び第２図に示す。第１図−）において磁気コア１
を導電性のコアサボー）２に！ｉ−に込み、壱ｍ＊ビン
５を磁気コア１に挿入しさらに非磁性のスペーサーＳを
介して磁気空隙を形成するように互いに集合わせる０第
１図（１））は、このような磁気ヘッド構成体に板バネ
４を取付ける様子を示し１ｗ、２図の如く＃１１図（ｍ
ｌ）のヘッド素体をシールドケース５に組み込み、ｗｍ
ｔ内部に充填して磁気ヘッドが構成される。従ってこの
ような従来の磁気ヘッドにおいては磁気コアとシールド
ケースとを電気的に導通名せるために、磁気コア１とコ
アサポート２の間、コアサポート２と板バネ４の間、板
バネ４とシールドケース５の間の各部品間が確実に電気
的に４通していなければならない。The general manufacturing method of magnetic heads is shown in Fig. 1(a), (
kl and shown in FIG. In Figure 1-), magnetic core 1
conductive core sabot) 2! i-, insert the 1 m * bottles 5 into the magnetic core 1, and then gather them together to form a magnetic gap via the non-magnetic spacer S (Fig. 1 (1)). Figure #11 (m
Incorporate the head body of l) into the shield case 5, and wm
A magnetic head is constructed by filling the inside of the t. Therefore, in such conventional magnetic heads, in order to electrically conduct the magnetic core and the shield case, there are There must be four electrical connections between each component between the shield cases 5.
一方、磁気ヘッドには前述したように内部に１１脂を充
填する。この樹脂は一般的に熱硬化性であり硬化時に収
縮するが、この現象が４１に板バネに大きな影響を与え
る。そして、コア量ボート２と板バネ４、あるいｔｉ板
バネ４とシールドケース５間の接触を引き離そうとする
力が作用する。このため、−気コア１とシールドケース
５の導適状練はきわめて不安定であった。On the other hand, the inside of the magnetic head is filled with No. 11 fat as described above. This resin is generally thermosetting and shrinks when cured, and this phenomenon has a great effect on the leaf spring 41. Then, a force acts to separate the contact between the core boat 2 and the leaf spring 4, or between the Ti leaf spring 4 and the shield case 5. Therefore, the conductivity between the -air core 1 and the shield case 5 was extremely unstable.
本発明はとのよ５な磁気コアとシールドナースとの聞の
導通の小管にな費嵩′ｔ−除去し、ノイズ及びコアの帯
磁を軽減させた磁気ヘッドを提供するものである。The present invention provides a magnetic head which eliminates the cost and cost of conducting a small tube between a magnetic core and a shield nurse, and reduces noise and magnetization of the core.
以下、図に示した実施例を用いて本発明の説明を行なう
。縞６図は本発明の磁気ヘッドを示した構成図である。The present invention will be explained below using examples shown in the figures. FIG. 6 is a block diagram showing the magnetic head of the present invention.
第６図において、一対の磁気コア１１．１１に互いに突
合わせ、コアサポート１２と共にパーマロイ等を用いた
シールドケース１５の中に収納する。In FIG. 6, a pair of magnetic cores 11 and 11 are butted against each other and housed together with a core support 12 in a shield case 15 made of permalloy or the like.
磁気コア１１の後部（図の右＠）にはコイル１６が捲回
石れ、コイル１６の端部は端子１４ｍ、１４ｂに２
左手中で保持する。磁気コア１１の後部には、コアサポ
ート１２を貫通してシールドケース１５と接触し、磁気
コア１１とシールドケース１５に１１１気的に導通させ
るための凸ｓ１１＆を設ける。A coil 16 is wound around the rear part of the magnetic core 11 (at the right in the figure), and the ends of the coil 16 are held in the left hand by the terminals 14m and 14b. A protrusion s11& is provided at the rear of the magnetic core 11 to penetrate through the core support 12 and come into contact with the shield case 15 to bring the magnetic core 11 and the shield case 15 into electrical conduction.
ｊｇ４図（→、（ｂ）は磁気コア１１の正−図及び平面
図をそれぞれ示したものである。Figure jg4 (→, (b) shows the front view and plan view of the magnetic core 11, respectively.
８ｇ４図（ａ）は第６図“に示した磁気コア１１を矢印
Ａを８１層して形成した１、積層コーア部１６と、銅、
★鋼。8g4 (a) shows the magnetic core 11 shown in FIG.
★Steel.
覧
リン青銅、ステンレス−９洋白等の非硫性で且つ導％性
を有する導通部１７を積層［、て成る。そして、凸ｓ１
１＆は導通部１７の一部分に形成したものである。第４
図（ａ）において導通部１７は積層コア部１６の両＠（
図では左右）に設けているが何れか一方の片側に設けて
も良い。It consists of a laminated conductive part 17 that is non-sulfuric and conductive, such as phosphor bronze or stainless steel-9 nickel silver. And convex s1
1& is formed in a part of the conductive portion 17. Fourth
In Figure (a), the conductive part 17 is connected to both sides of the laminated core part 16
In the figure, they are provided on the left and right sides, but they may be provided on either one side.
このように、本発明の磁気ヘッドは、磁気コアをシール
ドケースにＩｉ！接接触させて導通全行うので、コア賃
ボー トを例えばポリカーボネート、ポリアセタール、
フェノール系の成形樹脂等の如く非導電性材料で形成さ
せる拳ができる。このため製造コストが安価になる。そ
して、磁気コアとシールれる。In this way, the magnetic head of the present invention has a magnetic core placed in a shielding case. Since full conductivity is achieved through contact, the core material can be made of materials such as polycarbonate, polyacetal,
A fist can be formed from a non-conductive material such as a phenolic molding resin. This reduces manufacturing costs. Then it is sealed with a magnetic core.
纂１図（ａ） 、 （ｂ）は従来の磁気ヘッドの分解剥
視図、第２図は従来の磁気ヘッドの＠面図、
第３図は本発明の磁気ヘッドの実施例を示した構成図、
第４図（’） ＊ （ｂ）は本発明の磁気ヘッドに用い
る磁気コアの正面図及び平面図
１１・・・・・磁気コア Ｉｌａ・拳・・Φ凸部１２
・０・・コア賃ボ−）１３−・・・・コイル１５・・―
・・シールドケース １６・０１１１１積層コア部１７
・・−・・導通部。
第１Ｍ
（０’） （ｂ）
第２霞Figures 1 (a) and (b) are exploded perspective views of a conventional magnetic head, Figure 2 is a @ side view of a conventional magnetic head, and Figure 3 is a configuration showing an embodiment of the magnetic head of the present invention. Figure 4(') *(b) is a front view and a plan view of the magnetic core used in the magnetic head of the present invention 11...Magnetic core Ila, fist...Φ convex portion 12
・0...Core price) 13-...Coil 15...
・・Shield case 16・01111 Laminated core part 17
...--Conducting part. 1st M (0') (b) 2nd Kasumi
Claims (1)
するシールドケースとを有する磁気ヘッドにおいて、ｖ
Ｊ１横層した高透磁率物質に一部か＃記シールドケース
と接触する非磁性導電物置を積層し前記磁気コアと前記
シールドケースとを電ダ的に導通石せた事を特徴とする
磁気ヘッド〇In a magnetic head having a magnetic core layered with a high magnetic permeability material and a shield case housing the magnetic core,
A magnetic head characterized in that a part of a non-magnetic conductive material in contact with a shield case is laminated on a horizontally layered high magnetic permeability material, so that the magnetic core and the shield case are electrically conductive. 〇
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13107981A JPS5835720A (en) | 1981-08-21 | 1981-08-21 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13107981A JPS5835720A (en) | 1981-08-21 | 1981-08-21 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5835720A true JPS5835720A (en) | 1983-03-02 |
Family
ID=15049491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13107981A Pending JPS5835720A (en) | 1981-08-21 | 1981-08-21 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5835720A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61293494A (en) * | 1985-06-24 | 1986-12-24 | ジャガー株式会社 | Sewing machine |
| JPS6210888U (en) * | 1985-07-03 | 1987-01-23 | ||
| JPS63121077U (en) * | 1987-01-30 | 1988-08-05 | ||
| JPH0246905U (en) * | 1988-09-21 | 1990-03-30 | ||
| JPH0298393A (en) * | 1988-10-04 | 1990-04-10 | Juki Corp | Sewing machine having balance device |
-
1981
- 1981-08-21 JP JP13107981A patent/JPS5835720A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61293494A (en) * | 1985-06-24 | 1986-12-24 | ジャガー株式会社 | Sewing machine |
| JPS6210888U (en) * | 1985-07-03 | 1987-01-23 | ||
| JPS63121077U (en) * | 1987-01-30 | 1988-08-05 | ||
| JPH0246905U (en) * | 1988-09-21 | 1990-03-30 | ||
| JPH0298393A (en) * | 1988-10-04 | 1990-04-10 | Juki Corp | Sewing machine having balance device |
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