JPH0320009U

JPH0320009U -

Info

Publication number: JPH0320009U
Application number: JP8034889U
Authority: JP
Priority date: 1989-07-07
Filing date: 1989-07-07
Publication date: 1991-02-27

Description

[Brief explanation of drawings]

第１図はトンネル消去型磁気ヘツドの分解斜視
説明図である。１０……記録・再生用ヘツド、１０ａ，１０ｂ
……コア側面、１１……Ｌ型コア、１２，２２，
３２……Ｉ型コア、１３，２３，３３……非磁性
Ｌ型コア、２０，３０……消去用ヘツド、２０ａ
，２０ｂ，３０ａ，３０ｂ……コア側面、４０，
５０……ホルダー、４０ｂ，５０ａ……接合面。 FIG. 1 is an exploded perspective view of a tunnel erase type magnetic head. 10...recording/reproducing head, 10a, 10b
... Core side, 11 ... L-shaped core, 12, 22,
32... I-type core, 13, 23, 33... Non-magnetic L-type core, 20, 30... Erasing head, 20a
, 20b, 30a, 30b... Core side, 40,
50...Holder, 40b, 50a...Joint surface.

Claims

[Scope of Claim for Utility Model Registration] A front core of an erasing head consisting of a core made of a combination of magnetic and non-magnetic materials is placed on both sides of the front core of a recording/reproducing head made of a core made of a combination of magnetic and non-magnetic materials. In a stacked tunnel erase type magnetic head for an FDD, the surface roughness of the core surface of the erasing head, which is adhesively opposed to the core of the recording/reproducing head which has surfaces with a surface roughness of 0.2S or less on both sides, is 1S to 2S. A tunnel erase type magnetic head for FDD, which is characterized by the following.