JPS5894126U

JPS5894126U - Magnetic head for video tape recorder

Info

Publication number: JPS5894126U
Application number: JP18879081U
Authority: JP
Inventors: 隆生小林; 哲山口; 上岡　登喜夫; 石井　試一
Original assignee: ティーディーケイ株式会社
Priority date: 1981-12-18
Filing date: 1981-12-18
Publication date: 1983-06-25

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 drawings]

第１図は家庭用小形ＶＴＲに使用されるテープの記録方
式を示した図、第２図は音声信号トラックおよびコント
ロール信号トラック用の従来のＶＴＲ用磁気ヘッドを示
した図でイは平面図、口は正面図、第３図は本考案に係
るＶＴＲ用磁気ヘッドを示した図でイは平面図口は正面
図、ハは０図におけるハーバ断面を矢印方向にみた図、
第４図イル二は本考案に用いられるブロックホルダを例
示した斜視図である。１・・・・・・テープ、２・・・・・・映像信号トラッ
ク、３・・・・・・音声信号トラック、４・・・・・・
コントロール信号トラック、１１・・・・・・磁気ヘッ
ド、１２・・・・・・ケース、１３・・・・・・シール
ドブロック、１４・・・・・・音声ヘッド、１５・・・
・・・コントロールヘッド、１４Ａ、１５Ａ・・・・・
・フロントコア、２１・・・・・・ブロックホルダ、２
１Ａ・・・・・・シールドブロック当接面、２１Ｂ・・
・・・・ヘッド取付基準面、２１Ｃ・・・・・・基準面
、２１Ｄ・・・・・・突起、２１Ｅ・・・・・・凹部、
２２・・・・・・ボス、２２Ａ・・・・・・基準面、２
３・・・・・・シールドブロック当接部、２３Ａ・・・
・・・シールドブロック当接面、２４・・・・・・帯状
突起、２５・・・・・・切欠き、２６・・・・・・切欠
き。Fig. 1 is a diagram showing a tape recording system used in a small household VTR, Fig. 2 is a diagram showing a conventional VTR magnetic head for audio signal tracks and control signal tracks, and A is a plan view; Figure 3 is a diagram showing a magnetic head for a VTR according to the present invention; Figure 3 is a plan view; Figure 3 is a front view of the harbor cross section in Figure 0;
FIG. 4 is a perspective view illustrating a block holder used in the present invention. 1...Tape, 2...Video signal track, 3...Audio signal track, 4...
Control signal track, 11... Magnetic head, 12... Case, 13... Shield block, 14... Audio head, 15...
...Control head, 14A, 15A...
・Front core, 21...Block holder, 2
1A...Shield block contact surface, 21B...
...Head mounting reference surface, 21C...Reference surface, 21D...Protrusion, 21E...Recess,
22...Boss, 22A...Reference surface, 2
3... Shield block contact part, 23A...
... Shield block contact surface, 24 ... Band-shaped projection, 25 ... Notch, 26 ... Notch.

Claims

[Scope of utility model registration request]

(1) In a magnetic head for a video tape recorder, which includes a shield block, an audio head, and a control head placed in a case and filled with resin, the magnetic head has a surface that contacts the shield block, a surface that is parallel to the shield block, and a surface that is parallel to this. and two surfaces perpendicular to the surface of the shield block and parallel to each other, and on both sides of the contact surface of the shield block, block holders are provided having band-like protrusions for reference for mounting the shield block. A magnetic head for video tape recorders.

(2) A magnetic head for a video tape recorder, wherein the block holder has a substantially rectangular shape.

(3) A magnetic head for a video tape recorder, wherein the block holder comprises a substantially rectangular boss portion and a flat shield block abutment portion having square notches at both ends.