JPS6218813U

JPS6218813U -

Info

Publication number: JPS6218813U
Application number: JP11054785U
Authority: JP
Priority date: 1985-07-19
Filing date: 1985-07-19
Publication date: 1987-02-04
Also published as: JPH042411Y2

Description

[Brief explanation of the drawing]

第１図は本考案実施例の磁気ヘツドの斜視図、
第２図は上記磁気ヘツドのコア体の斜視図、第３
図は同上コア体に対し、スパツタ膜の形成につい
て説明するのに用いた図、第４図は上記コア体の
形成前のブロツク体構成を示す図、第５図はスパ
ツタリング工法によるギヤツプ設定手順を示す図
、第６図は流し込み工法によるギヤツプ設定手順
を示す図、第７図は低融点ガラス棒によるガラス
流し込み工法を説明するための図、第８図は別実
施例のコア体の分解斜視図、第９図は別実施例の
磁気ヘツドの組み立状態を示す斜視図である。１，１０３…記録再生側のセンタコア、２，１
０２…記録再生側のサイドコア、３，１０６…消
去側のセンタコア、４，１０５…消去側のサイド
コア、７，１０７，１０８…バツクバー、２ａ，
４ａ，１０２ａ，１０５ａ…当接補助コア。 FIG. 1 is a perspective view of a magnetic head according to an embodiment of the present invention;
Figure 2 is a perspective view of the core body of the magnetic head; Figure 3 is a perspective view of the core body of the magnetic head;
The figure is a diagram used to explain the formation of a sputtering film on the same core body, Figure 4 is a diagram showing the structure of the block body before the formation of the core body, and Figure 5 is a diagram showing the gap setting procedure using the sputtering method. 6 is a diagram showing the gap setting procedure using the pouring method, FIG. 7 is a diagram for explaining the glass pouring method using a low melting point glass rod, and FIG. 8 is an exploded perspective view of the core body of another embodiment. , FIG. 9 is a perspective view showing an assembled state of a magnetic head according to another embodiment. 1,103...Center core on the recording/reproducing side, 2,1
02...Side core on the recording/reproduction side, 3,106...Center core on the erasing side, 4,105...Side core on the erasing side, 7,107,108...Back bar, 2a,
4a, 102a, 105a... contact auxiliary cores.

Claims

[Claims for Utility Model Registration] A recording/reproducing core body having a recording/reproducing gap formed between a center core and side cores on the recording/reproducing side, and an erasing core body forming an erasing gap between the center core and side cores on the erasing side, The pair of erasing gaps are arranged so that the pair of erasing gaps face both side edges of the information recording track which is recorded and reproduced by the recording/reproducing gap.
In the magnetic head for a floppy disk in which the recording/reproducing core body and the erasing core body are arranged, a back bar forming a magnetic circuit abuts on at least one of the recording/reproducing side center core and the erasing side center core. A magnetic head for a floppy disk, wherein an auxiliary core is provided in a protruding manner, and a joining gap between the corresponding auxiliary core and the center core is smaller than the recording/reproducing gap or the erasing gap.