JPS6236412U

JPS6236412U -

Info

Publication number: JPS6236412U
Application number: JP12708785U
Authority: JP
Priority date: 1985-08-20
Filing date: 1985-08-20
Publication date: 1987-03-04

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係わる磁気デイスク
装置のトンネルイレーズ型磁気ヘツドを示す平面
図、第２図は第１図の磁気ヘツドの正面図、第３
図は第２図の磁気ヘツドの左側面図、第４図は第
２図の磁気ヘツドの右側面図、第５図はコイルを
除去して示す磁気ヘツドの斜視図、第６図は第１
図の磁気ヘツドからコイルと短絡磁性片とを除い
た部分の分解斜視図、第７図は変形例の磁気ヘツ
ドの斜視図である。１……中央層、２……第１の外層、３……第２
の外層、４……第１のスライダ、５……第２のス
ライダ、６……磁性片、７……信号変換用コイル
、８……消去用コイル、９……Ｒ／Ｗギヤツプ、
１０……Ｒ／Ｗコア、１１……補強体、１２……
第１の消去用ギヤツプ、１３……第１の消去用コ
ア、１３ａ……柱状部分、１３ｂ……Ｌ字状部分
、１３ｃ……第１の付加磁性体、１４……非磁性
補強体、１５……第２の短絡磁性片、１６……第
２の消去用ギヤツプ、１７……第２の消去用コア
。 1 is a plan view showing a tunnel erase type magnetic head of a magnetic disk device according to an embodiment of the present invention, FIG. 2 is a front view of the magnetic head shown in FIG. 1, and FIG.
The figure is a left side view of the magnetic head in Figure 2, Figure 4 is a right side view of the magnetic head in Figure 2, Figure 5 is a perspective view of the magnetic head with the coil removed, and Figure 6 is a side view of the magnetic head in Figure 1.
FIG. 7 is an exploded perspective view of a portion of the magnetic head shown in the figure excluding the coil and the short-circuiting magnetic piece, and FIG. 7 is a perspective view of a modified example of the magnetic head. 1... Central layer, 2... First outer layer, 3... Second
outer layer, 4...first slider, 5...second slider, 6...magnetic piece, 7...signal conversion coil, 8...erasing coil, 9...R/W gap,
10... R/W core, 11... Reinforcement body, 12...
First erasing gap, 13...First erasing core, 13a...Columnar part, 13b...L-shaped part, 13c...First additional magnetic body, 14...Nonmagnetic reinforcing body, 15 ...second short-circuiting magnetic piece, 16...second erasing gap, 17...second erasing core.

Claims

[Claims for Utility Model Registration] A magnetic core for signal conversion that has two legs and a magnetic gap for signal conversion that is filled with a non-magnetic spacer between the two legs; a central layer having the same thickness and a non-magnetic reinforcing body continuous with and integrated into the signal conversion magnetic core; and two legs, with a non-magnetic reinforcement between the two legs. a first erasing magnetic core having a first erasing magnetic gap filled with a spacer and continuous to the first erasing magnetic core having the same thickness as the first erasing magnetic core; and a non-magnetic reinforcing body integrally integrated with the first erasing magnetic core such that the first erasing magnetic core faces at least a portion of the reinforcing body of the central layer and is integrated with the first erasing magnetic core. the reinforcing body has a first outer layer disposed adjacent to one side of the central layer so as to face at least a portion of the signal converting magnetic core of the central layer; and two legs; a second erasing magnetic core having a second erasing magnetic gap filled with a non-magnetic spacer between the two legs; a non-magnetic reinforcing body continuous and integrated with the second erasing magnetic core, the second erasing magnetic core facing at least a part of the reinforcing body of the central layer, The reinforcing body integrated with the second erasing magnetic core is disposed adjacent to the other side of the central layer so as to face at least a portion of the signal converting magnetic core of the central layer, and a second outer layer disposed substantially symmetrically with respect to the first outer layer at the center; and two legs of the signal converting magnetic core so as to form a closed magnetic path through the signal converting magnetic gap. a magnetic piece for short-circuiting, a signal conversion coil wound around the signal conversion magnetic core, and an erasing coil wound around the first and second erasing magnetic cores. In the tunnel erase type magnetic head, the first and second erasing cores each have a prismatic portion and an L-shaped portion that are coupled to each other by a non-magnetic spacer in the first and second erasing gaps. In addition, the first and second additional magnetic bodies are respectively fixed to the prismatic part, and the first and second additional magnetic bodies are fixed to the non-magnetic reinforcing body of the prismatic part. What is claimed is: 1. A tunnel erase type magnetic head, wherein the tunnel erase type magnetic head is fixed to a surface opposite to the surface of the magnetic head, and is formed to have substantially the same thickness as the prismatic portion.