JPH0319051Y2 - - Google Patents

Info

Publication number
JPH0319051Y2
JPH0319051Y2 JP1981040706U JP4070681U JPH0319051Y2 JP H0319051 Y2 JPH0319051 Y2 JP H0319051Y2 JP 1981040706 U JP1981040706 U JP 1981040706U JP 4070681 U JP4070681 U JP 4070681U JP H0319051 Y2 JPH0319051 Y2 JP H0319051Y2
Authority
JP
Japan
Prior art keywords
bobbin
elastic body
core
magnetic head
tip
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
Application number
JP1981040706U
Other languages
Japanese (ja)
Other versions
JPS57158022U (en
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 filed Critical
Priority to JP1981040706U priority Critical patent/JPH0319051Y2/ja
Publication of JPS57158022U publication Critical patent/JPS57158022U/ja
Application granted granted Critical
Publication of JPH0319051Y2 publication Critical patent/JPH0319051Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Heads (AREA)

Description

【考案の詳細な説明】 この考案は、V.T.R用消去ヘツド、或いはテー
プレコーダ用録音、再生ヘツド等に使用される磁
気ヘツドに係り、磁気ヘツドを構成するフロント
コア、バツクコアの側面と、ボビン間の間隙を衝
合せしめるコ字型弾性体の形状を改良した磁気ヘ
ツドに関するものである。
[Detailed description of the invention] This invention relates to a magnetic head used as an erasing head for a VTR or a recording/playback head for a tape recorder, etc. This invention relates to a magnetic head in which the shape of the U-shaped elastic body that abuts the gap is improved.

従来、この種の磁気ヘツドは、第1図ないし第
2図に示す如く、前端部にギヤツプを形成した磁
性体からなるU字型フロントコア1の脚部1a,
1aにコ字型バツクコア2の脚部2a,2aを重
ね合わせ、その重ね合わせ部にはボビン3,3が
嵌着され、コイル4,4が巻回されている。そし
てボビン3,3とコ字型バツクコア2の脚部2
a,2a間の間隙内には、一様に湾曲した金属製
のコ字型弾性体5が挿入され、バツクコア2の脚
部2a,2aの側面と、ボビン3,3内の間隙が
衝合されている。
Conventionally, as shown in FIGS. 1 and 2, this type of magnetic head has legs 1a of a U-shaped front core 1 made of a magnetic material with a gap formed at the front end.
Leg portions 2a, 2a of a U-shaped back core 2 are overlapped on 1a, bobbins 3, 3 are fitted into the overlapping portion, and coils 4, 4 are wound. And the bobbins 3, 3 and the legs 2 of the U-shaped back core 2.
A uniformly curved metal U-shaped elastic body 5 is inserted into the gap between a and 2a, and the side surfaces of the legs 2a and 2a of the back core 2 abut the gaps in the bobbins 3 and 3. has been done.

しかしながら、上記弾性体5は、ボビン3,3
にフロントコア1、バツクコア2が組み込まれた
後にボビン3,3とバツクコア2の間隙内に挿入
されるものであるから、弾性体5の湾曲した先端
部がボビン3,3の内壁面を傷つけ易く、ボビン
が破損したり、コイルを引つ掛けて断線するなど
の欠点があつた。
However, the elastic body 5 is
Since the front core 1 and back core 2 are inserted into the gap between the bobbins 3 and 3 and the back core 2 after the front core 1 and the back core 2 are assembled in the bobbin, the curved tip of the elastic body 5 is likely to damage the inner wall surfaces of the bobbins 3 and 3. However, there were drawbacks such as the bobbin being damaged and the coil being caught and breaking.

この考案は、上述した従来例の欠点を改良する
ためになされたものであり、フロントコア、バツ
クコアの側面と、ボビン間の間隙を衝合せしめる
ために挿入されるコ字型弾性体の先端部に折曲部
又は折返部を形成し、ボビン内の壁面を損傷する
ことなく、しかも組立てが容易になる弾性体の形
状により特性を安定化した磁気ヘツドを提供する
ものである。
This invention was made to improve the drawbacks of the conventional example described above, and the tip of the U-shaped elastic body is inserted to abut the sides of the front core and back core and the gap between the bobbin. To provide a magnetic head whose characteristics are stabilized by forming a bent part or a folded part in the shape of an elastic body which does not damage the inner wall surface of the bobbin and can be easily assembled.

以下、この考案による一実施例を第3図ないし
第4図にもとづいて具体的に説明する。図におい
て、従来例と対応する箇所及び部品は同一符号を
付して説明する。
Hereinafter, one embodiment of this invention will be explained in detail based on FIGS. 3 and 4. In the drawings, parts and parts corresponding to those of the conventional example will be described with the same reference numerals.

第3図はこの考案による金属製のコ字型弾性体
5を示す斜視図であり、銅合金製のバネ材からな
り、そのバネ材は例えば耐湿性を向上させ、バネ
力の劣化を防ぐためにメツキ等の処理を施しても
よい。上記弾性体5は湾曲成形されており、先端
部5a,5aは湾曲面と反対側に所定の角度を有
して折り曲げるか、またはまるみを有するように
折曲げるか、折返し等が形成されている。
FIG. 3 is a perspective view showing a metal U-shaped elastic body 5 according to this invention, which is made of a spring material made of copper alloy. Treatments such as plating may also be applied. The elastic body 5 is formed into a curve, and the tip portions 5a, 5a are bent at a predetermined angle on the side opposite to the curved surface, or are bent to have a round shape, or are folded back. .

上述したように成形された弾性体5は、コ字型
の先端部5a,5a側よりコアの側面とボビン
3,3間の隙間内に挿入される場合、第4図に示
す如く先端部5a,5aの端縁がボビン3,3の
内壁面に当接することがなく、滑らかに挿入さ
れ、間隙を衝合することができる。
When the elastic body 5 formed as described above is inserted into the gap between the side surface of the core and the bobbins 3, 3 from the U-shaped tip portions 5a, 5a, the tip portion 5a, as shown in FIG. , 5a do not come into contact with the inner wall surfaces of the bobbins 3, 3, so that they can be inserted smoothly and the gaps can be abutted.

以上詳細に説明したように、この考案による磁
気ヘツドでは、ボビン内に重ね合わされて組み込
まれるフロントコアとバツクコアが弾性体を挿入
することにより圧着され、バツクコアのアース落
しが容易に行なわれるものであり、磁気ヘツドの
特性変化が起らず安定した性能を維持することが
できる。
As explained in detail above, in the magnetic head of this invention, the front core and back core, which are superimposed and built into the bobbin, are crimped together by inserting an elastic body, and the back core can be easily grounded. Therefore, the characteristics of the magnetic head do not change and stable performance can be maintained.

また、ボビンとコア間の間隙内に挿入される弾
性体が先端部の端縁でボビン内壁面を損傷するこ
となく容易に挿入され、そのためボビンが破損し
たりコイルを引つ掛けて断線することが避けら
れ、フロントコア、バツクコアを均一にボビン内
に押圧することができるので、信頼性の高い磁気
ヘツドを得ることができる。
In addition, the elastic body inserted into the gap between the bobbin and the core can be easily inserted without damaging the inner wall surface of the bobbin at the edge of the tip, which prevents the bobbin from being damaged or the coil being caught and disconnected. Since the front core and the back core can be uniformly pressed into the bobbin, a highly reliable magnetic head can be obtained.

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

第1図は従来の実施例を示す分解斜視図、第2
図は同じく組立完了状態を示す斜視図、第3図は
この考案による弾性体の斜視図、第4図はこの考
案による組立時を示す要部の断面図である。 1……フロントコア、2……バツクコア、3…
…ボビン、5……弾性体、5a……先端部。
Figure 1 is an exploded perspective view showing a conventional embodiment; Figure 2 is an exploded perspective view showing a conventional embodiment;
FIG. 3 is a perspective view of the elastic body according to this invention, and FIG. 4 is a sectional view of the main parts when assembled according to this invention. 1...Front core, 2...Back core, 3...
...Bobbin, 5...Elastic body, 5a...Tip portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] フロントコアの脚部にバツクコアを重ね合わせ
て、この重ね合わせ部にコイルを巻回したボビン
を嵌着するとともに、前記重ね合わせたフロント
コア及びバツクコアと、前記ボビンとの間隙内
に、湾曲成形したコ字型弾性体を挿入してなる磁
気ヘツドにおいて、前記湾曲成形したコ字型弾性
体の先端部、湾曲面と反対側に折曲げ部又は折返
し部を形成し、該先端部の端縁が前記ボビンの内
面と接触しないようにしたことを特徴とする磁気
ヘツド。
A back core is superimposed on the leg portion of the front core, and a bobbin with a coil wound thereon is fitted into this superimposed portion, and a curved mold is formed in the gap between the superimposed front core and back core and the bobbin. In a magnetic head formed by inserting a U-shaped elastic body, the tip of the curved U-shaped elastic body is formed with a bent part or a folded part on the opposite side of the curved surface, and the edge of the tip is A magnetic head characterized in that it does not come into contact with the inner surface of the bobbin.
JP1981040706U 1981-03-25 1981-03-25 Expired JPH0319051Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981040706U JPH0319051Y2 (en) 1981-03-25 1981-03-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981040706U JPH0319051Y2 (en) 1981-03-25 1981-03-25

Publications (2)

Publication Number Publication Date
JPS57158022U JPS57158022U (en) 1982-10-04
JPH0319051Y2 true JPH0319051Y2 (en) 1991-04-23

Family

ID=29837809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981040706U Expired JPH0319051Y2 (en) 1981-03-25 1981-03-25

Country Status (1)

Country Link
JP (1) JPH0319051Y2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101717U (en) * 1972-12-21 1974-09-02
JPS566988Y2 (en) * 1976-02-02 1981-02-16

Also Published As

Publication number Publication date
JPS57158022U (en) 1982-10-04

Similar Documents

Publication Publication Date Title
JPH0319051Y2 (en)
JPH0227365Y2 (en)
JPS6235135Y2 (en)
JPH0510243Y2 (en)
JPH026489Y2 (en)
JPH0227378Y2 (en)
JPH0138725Y2 (en)
JPS629530Y2 (en)
JPH0739044Y2 (en) Magnetic head
JPS6346884Y2 (en)
JPS60111570U (en) magnetic disk cassette
JPH0445126Y2 (en)
JPS5942524U (en) magnetic head
JPS5919944Y2 (en) magnetic head
JPS58187027U (en) Magnetic head for VTR
JPS5942010U (en) electromagnetic device
JPS6338405Y2 (en)
JPS59130222U (en) coil bobbin
JPS6372702U (en)
JPS63200209U (en)
JPS6239204U (en)
JPS6074206U (en) magnetic head
JPS5843622U (en) magnetic head
JPS6020305A (en) Magnetic head
JPS5839730U (en) magnetic head