JPS5839727U

JPS5839727U - Magnetic head for video tape recorder

Info

Publication number: JPS5839727U
Application number: JP13490881U
Authority: JP
Inventors: 上岡　登喜夫
Original assignee: ティーディーケイ株式会社
Priority date: 1981-09-10
Filing date: 1981-09-10
Publication date: 1983-03-15

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図はＶＴＲ用のテープの記録状況を例示した図、第
２図はＶＴＲ用の消去ヘッドの構成を例示した図でイは
正面図口は右側面図、第３図は従来の消去ヘッド等の欠
点を例示した図、第４図はＶＴＲ用消去ヘッド等の磁気
ヘッドのケースを側面の斜上方からみた斜視図でイは従
来のもの、口　　。は試作段階のものハは本考案に係るものを示した図、第
５図イは第４図口のＶ−Ｖ断面を矢印方向にみた拡大断
面図、川ま本考案に係る磁気ヘッドの同一部分の拡大断
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
シトロール信号トラック、５・・・・・・ポルｆ−１１
１・・・・・・消去ヘッド、１２・・・・・・ケース、
１２Ａ・・・・・・テープ走行面、１２Ｂ・・・・・・
側面、１２Ｃ・・・・・・開口、１２Ｄ・・・・・・凹
部、１２Ｅ・・・・・・突部、１２Ｆ・・・・・・ラン
ド部、１２Ｇ・・・・・・突部、１３・・・・・・ヘッ
ド本体、１４・・・・・・樹脂等、１４Ａ、１４Ｂ・・
・・・・堆積、１５・・・・・・端子、１６・・・・・
・通孔、１７・・・・・・突起、２１・・・・・・磁気
ヘッド。Figure 1 is a diagram illustrating the recording situation of a VTR tape, Figure 2 is a diagram illustrating the configuration of an erasing head for a VTR, where A is a front view and the opening is a right side view, and Figure 3 is a conventional erasing head. Figure 4 is a perspective view of the case of a magnetic head such as an erase head for a VTR, viewed diagonally from above. Figure 5A is an enlarged sectional view of the V-V cross section of the opening in Figure 4, taken in the direction of the arrow, and the same magnetic head according to Kawama's invention. It is an enlarged sectional view of a part. 1-'-...Tape, 2...Video signal track, 3...Audio signal track, 4...Koshitrol signal track, 5...Pol f -11
1... Erasing head, 12... Case,
12A... Tape running surface, 12B...
Side surface, 12C...Opening, 12D...Concave portion, 12E...Protrusion, 12F...Land portion, 12G...Protrusion, 13...Head body, 14...Resin, etc., 14A, 14B...
...Deposition, 15...Terminal, 16...
- Through hole, 17...protrusion, 21...magnetic head.

Claims

[Scope of utility model registration request]

A case with an opening on the side adjacent to the tape running surface,
A magnetic head for a video tape recorder, in which a head body comprising a core and a coil wound around the core is inserted through the opening and filled with resin or the like, further comprising: a recess provided around the opening on the side surface; 1. A magnetic head for a video tape recorder, characterized in that the concave portion is provided with a protrusion whose top portion is on the same plane as the opening of the side surface and the land portion other than the concave portion and is substantially linear.