JPS5817513A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS5817513A
JPS5817513A JP11514981A JP11514981A JPS5817513A JP S5817513 A JPS5817513 A JP S5817513A JP 11514981 A JP11514981 A JP 11514981A JP 11514981 A JP11514981 A JP 11514981A JP S5817513 A JPS5817513 A JP S5817513A
Authority
JP
Japan
Prior art keywords
shield case
end opening
magnetic
magnetic head
bent
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
Application number
JP11514981A
Other languages
Japanese (ja)
Inventor
Hiroshi Hayashi
寛 林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Electronics Inc
Original Assignee
Canon Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Electronics Inc filed Critical Canon Electronics Inc
Priority to JP11514981A priority Critical patent/JPS5817513A/en
Publication of JPS5817513A publication Critical patent/JPS5817513A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/10Structure or manufacture of housings or shields for heads
    • G11B5/11Shielding of head against electric or magnetic fields
    • G11B5/112Manufacture of shielding device

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

PURPOSE:To increase a magnetic shielding effect by extending and bending part of a platelike fitting leg provided to a shield case, and thus blocking the rear- end opening part of the shield case. CONSTITUTION:Part of a fitting leg 6 fixed on the reverse surface of a shiled case 1 is bent toward the rear-end opening part of the shield case 1 to obtain a bent part 6a, thus nearly blocking the rear-end opening part. The bent part 6a has a notch 6b for avoiding terminals 4 an 4, and is fixed to the shield case 1 by spot welding, adhesion with an adhesive, etc., while not in contact with the terminals 4 and 4. The fitting leg 6 is made of a magnetic material such as ''Permalloy ''. The rear-end opeing part of the shield case is covered with the magnetic material, so that magnetic shielding effect is increased.

Description

【発明の詳細な説明】 本発明は磁気ヘッドに係り、さらに詳しくは磁気シール
ド構造の改良をはか、つ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, and more particularly to a magnetic head with an improved magnetic shield structure.

一般に磁気ヘッドは、外部からの磁気誘導ノイズを低減
させるための磁気シールドケースCニコアを嵌合させた
構造を採用しているが、シールドケースの後端側は一般
に磁気シールドされないでいる。
Generally, a magnetic head employs a structure in which a magnetic shield case Cnicore is fitted in order to reduce magnetically induced noise from the outside, but the rear end side of the shield case is generally not magnetically shielded.

例えば、第1図に示すよう(二磁気ヘッドはシールドケ
ース1と、コア組立体2とから成っている。
For example, as shown in FIG. 1, a two-magnetic head consists of a shield case 1 and a core assembly 2.

コア組゛立体2は左右一対のコア半体2a、2aと、こ
れらを保持するコアサポート3,3と、端子4及びコア
半体2a、2aζ二巻回されたコイル5゜5とから成る
。この磁気コア組立体2がシールドケース1の後方の開
口部1aから嵌合され、溶融した樹脂等を充填すること
により一体的にモールドされる。
The core assembly 2 consists of a pair of left and right core halves 2a, 2a, core supports 3, 3 for holding them, a terminal 4, and a coil 5.5 wound twice in the core halves 2a, 2aζ. This magnetic core assembly 2 is fitted into the shield case 1 from the rear opening 1a, and is integrally molded by filling it with molten resin or the like.

このようにして一体化された後、シールドケース1の下
面C二金属板などから成る取付は脚6を固定し、この脚
6を介して磁気ヘッドが装置側に固定される。
After being integrated in this manner, the lower surface C of the shield case 1 is fixed with legs 6 made of two metal plates, and the magnetic head is fixed to the apparatus side via the legs 6.

このような構造を有する磁気ヘッドでは、シールドケー
ス1の後端部が開口されており、磁気シールドは行なわ
れておらず、磁気誘導ノイズを発生しやすい欠点があっ
た。
In a magnetic head having such a structure, the rear end of the shield case 1 is open, and no magnetic shielding is provided, which has the disadvantage that magnetic induction noise is likely to occur.

本発明は、以上のような従来の欠点を除去するためにな
されたもので、磁気シールド効果を増大させることがで
きる磁気ヘッドを提供することを目的としている。
The present invention has been made to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a magnetic head that can increase the magnetic shielding effect.

本発明においては、上記の目的を達成するために、磁気
ヘッドの取付は脚をパーマロイなどの磁性材料から形成
し、この平板状の脚をシールドケースの後方(;臨ませ
た構造を採用した。以下、図面1:示す実施例と共に本
発明の詳細な説明する。
In order to achieve the above object, the present invention adopts a structure in which the legs are made of a magnetic material such as permalloy and the flat legs are exposed to the rear of the shield case. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below along with an embodiment shown in FIG.

第2図は本発明の一実施例を説明するもので、図中第1
図と同一部分或いは相当する部分C;は同一符号を付し
、その説明は省略する。
FIG. 2 explains one embodiment of the present invention.
Portions C that are the same as or correspond to those in the drawings are designated by the same reference numerals, and their explanations will be omitted.

本実施例にあってはシールドケース1の裏面に固定され
る取付は脚6の一部をシールドケース1の後端開口部側
に折り曲げた折曲部6aとし1.シールドケース1の後
端開口部をほぼ閉塞している。
In this embodiment, the mounting is fixed to the back surface of the shield case 1 by using a bent part 6a, which is a part of the leg 6 bent toward the rear end opening side of the shield case 1.1. The rear end opening of the shield case 1 is substantially closed.

折曲部6a1;は端子4,4を避けるための切欠部6b
が形成されており、この折曲部6aは端子4゜4との接
触を避けた状態でシールドケース1に対してスポット溶
接、接着剤による接着、あるいはねじどめなど適当な手
段C:より固定される。
The bent portion 6a1 is a cutout portion 6b for avoiding the terminals 4, 4.
is formed, and this bent portion 6a is fixed to the shield case 1 by spot welding, adhesive bonding, screwing, or other suitable means C: while avoiding contact with the terminal 4゜4. be done.

取付は脚6は磁性材料、たとえばパーマロイから形成さ
れている。
For mounting, the legs 6 are made of a magnetic material, for example permalloy.

このような構造を採用すればシールドケースの後端開口
部が磁性材料で覆われ、磁気シールド効果を増大させる
ことができる。
If such a structure is adopted, the rear end opening of the shield case is covered with a magnetic material, and the magnetic shielding effect can be increased.

以上の説明から明らかなように本発明によれば磁性材料
からなる板状の取付は脚の一部を折り曲げ、シールドケ
ースの後端開口部を閉塞した構造を採用しているため、
磁気シールド効果は増大し、外部からの磁気誘導ノイズ
を著しく低減させることができる。
As is clear from the above description, according to the present invention, the plate-shaped mounting made of magnetic material adopts a structure in which part of the legs are bent and the rear end opening of the shield case is closed.
The magnetic shielding effect is increased and magnetically induced noise from the outside can be significantly reduced.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来構造を説明する分解斜視図、第2図は本発
明の一実施例を説明する背面から見た斜視図である。 1・・・シールドケース    2・・・コア組立体3
・・・サポート       4・・・端子6・・・取
付は脚      6a・・・折曲部6b・・・切欠部 特許出願人 キャノン電子株式会社
FIG. 1 is an exploded perspective view illustrating a conventional structure, and FIG. 2 is a perspective view seen from the rear illustrating an embodiment of the present invention. 1... Shield case 2... Core assembly 3
... Support 4 ... Terminal 6 ... Mounted on legs 6a ... Bending portion 6b ... Notch Patent applicant Canon Electronics Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] シールドケースの一部に板状の取付は脚を設けた磁気ヘ
ッドにおいて、前記取付は脚の一部を延長して折り曲げ
、シールドケースの後端開口部を閉塞したことを特徴と
する磁気ヘッド。□
1. A magnetic head in which a plate-like mounting leg is provided on a part of a shielding case, wherein the mounting is performed by extending and bending a part of the leg to close a rear end opening of the shielding case. □
JP11514981A 1981-07-24 1981-07-24 Magnetic head Pending JPS5817513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11514981A JPS5817513A (en) 1981-07-24 1981-07-24 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11514981A JPS5817513A (en) 1981-07-24 1981-07-24 Magnetic head

Publications (1)

Publication Number Publication Date
JPS5817513A true JPS5817513A (en) 1983-02-01

Family

ID=14655519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11514981A Pending JPS5817513A (en) 1981-07-24 1981-07-24 Magnetic head

Country Status (1)

Country Link
JP (1) JPS5817513A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044508A (en) * 1983-08-22 1985-03-09 Mitsui Petrochem Ind Ltd Curable composition
JPS60112807A (en) * 1983-11-25 1985-06-19 Mitsui Petrochem Ind Ltd Curable composition
EP0335645A2 (en) 1988-03-28 1989-10-04 Tokuyama Soda Kabushiki Kaisha Adhesive composition
US5234972A (en) * 1989-02-14 1993-08-10 Ube Industries, Ltd. Dental adhesive comprising an itaconic acid monoester compound
US5535080A (en) * 1993-12-25 1996-07-09 Mitsumi Electric Co., Ltd. Magnetic head connecting structure having temporarily retaining pawls

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044508A (en) * 1983-08-22 1985-03-09 Mitsui Petrochem Ind Ltd Curable composition
JPH0232290B2 (en) * 1983-08-22 1990-07-19 Mitsui Petrochemical Ind
JPS60112807A (en) * 1983-11-25 1985-06-19 Mitsui Petrochem Ind Ltd Curable composition
JPH0230324B2 (en) * 1983-11-25 1990-07-05 Mitsui Petrochemical Ind
EP0335645A2 (en) 1988-03-28 1989-10-04 Tokuyama Soda Kabushiki Kaisha Adhesive composition
US5234972A (en) * 1989-02-14 1993-08-10 Ube Industries, Ltd. Dental adhesive comprising an itaconic acid monoester compound
US5535080A (en) * 1993-12-25 1996-07-09 Mitsumi Electric Co., Ltd. Magnetic head connecting structure having temporarily retaining pawls

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