JPS5974518U

JPS5974518U - Erase head mechanism in magnetic tape device

Info

Publication number: JPS5974518U
Application number: JP16957182U
Authority: JP
Inventors: 紀之山下; 宏小林; 京藤　康正
Original assignee: ソニー株式会社
Priority date: 1982-11-09
Filing date: 1982-11-09
Publication date: 1984-05-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図乃至第３図は本考案磁気テープ装置における消去
ヘッド機構の第１の実施例を示すもので、第１図は消去
ヘッドの斜視図、第２図は消去ヘッドと磁気テープとの
関係を示す斜視図、゛第３図は動作を示す斜視図で、Ａ
は消去時を、Ｂは消去不可時を示し、第４図及び第５図
は前記第１の実施例の適用例を示すもので、第４図は全
体の斜視図、第５図はシールド板の斜視図、第６図及び
第７図は前記第１の実施例の別の適用例を示すもので、
第６図は斜視図、第７図は横断面図、第８図及び第９図
は本考案磁気テープ装置における消去ヘッド機構の第２
の実施例を示し、第８図は消去時の状態を示す斜視図、
第９図は消去不可時の状態を示す平面図、第１０図は本
考案磁気テープ装置における消去ヘッド機構の第３の実
施例を示す斜視図である。符号の説明、１・・・・・・消去ヘッド、４・・・・・
・永久磁石面、５・・・・・・非磁石面、１７・・・・
・・磁気テープ、２２・・・・・・消去ヘッド、２４・
・・・・・永久磁石面、２８・・・・・・非磁石面、４
９・・・・・・消去ヘッド、５１・・・・・・永久磁石
面、５２・・・・・・非磁石面。1 to 3 show a first embodiment of the erasing head mechanism in the magnetic tape device of the present invention, FIG. 1 is a perspective view of the erasing head, and FIG. 2 is a relationship between the erasing head and the magnetic tape. Figure 3 is a perspective view showing the operation;
4 and 5 show an application example of the first embodiment, where FIG. 4 is an overall perspective view and FIG. 5 is a shield plate. The perspective view, FIGS. 6 and 7 show another application example of the first embodiment,
6 is a perspective view, FIG. 7 is a cross-sectional view, and FIGS. 8 and 9 are views of the second erasing head mechanism in the magnetic tape device of the present invention.
FIG. 8 is a perspective view showing the state at the time of erasing,
FIG. 9 is a plan view showing the state when erasing is not possible, and FIG. 10 is a perspective view showing a third embodiment of the erasing head mechanism in the magnetic tape device of the present invention. Explanation of symbols, 1... Erasing head, 4...
・Permanent magnetic surface, 5...Non-magnetic surface, 17...
...Magnetic tape, 22...Erasing head, 24.
...Permanent magnetic surface, 28...Non-magnetic surface, 4
9... Erasing head, 51... Permanent magnet surface, 52... Non-magnetic surface.

Claims

[Scope of utility model registration request]

A permanent magnet surface that is located at a predetermined location on the tape path during erasing and comes into contact with the magnetic soup, and when erasing is not possible, the permanent magnet surface is removed from the predetermined location and does not come into contact with the magnetic tape; An erasing head mechanism for a magnetic tape device, comprising a non-magnetic surface that comes into contact with the predetermined location and comes out of contact with the magnetic tape during erasing.