JPS5839728U

JPS5839728U - Magnetic head for video tape recorder

Info

Publication number: JPS5839728U
Application number: JP13490981U
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

【図面の簡単な説明】[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
正面図口に右側面図、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、口は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・・・・・・
コントロール信号ト、ラック、５・・・・・・、ボルト
、１１・・・・・・消去ヘッド、１２・・・・・・ケー
ス、１２Ａ・・・・・・テープ走行面、１２Ｂ・・：・
・・側面、１２Ｃ・・・・・・開口、１２Ｄ・・・五凹
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 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 a VTR erasing head viewed diagonally from above, in which A is a conventional case, and the opening is at a prototype stage, and C is a case according to the present invention. FIG. 5A is an enlarged sectional view of the V-V cross section of the opening in FIG. 4, taken in the direction of the arrow, and the opening is an enlarged sectional view of the same portion of the magnetic head according to the present invention. 1...Tape, 2...Video signal track, 3...Audio signal track, 4...
Control signal, rack, 5..., bolt, 11... erase head, 12... case, 12A... tape running surface, 12B...:・
...Side surface, 12C...Opening, 12D...Five recesses, 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

【実用新案登録請求の範囲】[Scope of utility model registration request]

テープ走行面に隣接する側面に開口を有するケースに、
コアとコアに巻回されたコイルとを具え−たヘッド本体
を前記開口から挿入し、樹脂等を充填して成るビデオテ
ープレコーダ用磁気ヘッドにおいて、前記側面の開口の
周囲に凹部を設け、さらに該凹部部分にその頂部が前記
側面の開口および凹部以外のランド部分と同一平面上に
ありかつ−その面積がきわめて小さくほぼ点状をなして
いる突部を設けたことを特徴とするビデオテープレコー
ダ用磁気ヘッド。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; 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 whose area is extremely small and is approximately dot-shaped. magnetic head.