JPS5894128U

JPS5894128U - Magnetic head for video tape recorder

Info

Publication number: JPS5894128U
Application number: JP18879281U
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、コントロー
ル信号トラック記録再生用の従来の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用磁気ヘッドの構成を示した図で、イは
平面図、口は正面図、ハおよび二はそれぞれ０図におけ
るハーバ断面および二−二断面を矢印方向にみた図、第
４図、第５図はブロックホルダを例示した図で、それぞ
れイは平面図、口は正面図、ハは左側面図である。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、１１Ａ・・・・・・テープ走行面、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、２
１・・・・・・ブロックホルダ、２２・曲・突起、２３
・・・・・・ボス、２３Ａ・・・・・・基準面、２４・
・・・・・シールドブロック当接部、２４Ａ・・・・・
・シールドブロック当接面、２４Ｂ・・・・・・端縁、
２５・・・・・・突起、２６・・・・・・切欠き。２４′八九Ｂン４２５２６Figure 1 shows the tape recording system used in small household VTRs, and Figure 2 shows a conventional VTR magnetic head for recording and reproducing audio signal tracks and control signal tracks. 3 is a diagram showing the configuration of a magnetic head for a VTR according to the present invention, A is a plan view, mouth is a front view, C and 2 are a harbor cross section in FIG. - Figures 4 and 5, which are two cross-sectional views viewed in the direction of the arrows, are diagrams illustrating the block holder, where A is a plan view, the opening is a front view, and C is a left side view. 1...Tape, 2...Video signal track, 3...Audio signal track, 4...
Control signal track, 11...Magnetic head, 11A...Tape running surface, 12...
・Case, 13...Shield block, 14・
...Audio head, 15...Control head, 14A, 15A...Front core, 2
1...Block holder, 22, curve, protrusion, 23
...Boss, 23A...Reference surface, 24.
...Shield block contact part, 24A...
・Shield block contact surface, 24B...edge,
25... Protrusion, 26... Notch. 24'89Bn4 2526

Claims

[Scope of utility model registration request]

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, there are a surface that contacts the shield block, a surface that is parallel to the shield block, and a surface that is parallel to the shield block. Two planes that are orthogonal and parallel to each other, and protrusions provided on the planes that are perpendicular to S on both of the two sets of parallel planes, the distance between which is a predetermined distance with respect to the inner dimension of the case. 1. A magnetic head for a video tape recorder, comprising a block holder having a block holder that is larger than the size of the block holder.