JPS61126601A - Rotary magnetic head device - Google Patents

Rotary magnetic head device

Info

Publication number
JPS61126601A
JPS61126601A JP24462484A JP24462484A JPS61126601A JP S61126601 A JPS61126601 A JP S61126601A JP 24462484 A JP24462484 A JP 24462484A JP 24462484 A JP24462484 A JP 24462484A JP S61126601 A JPS61126601 A JP S61126601A
Authority
JP
Japan
Prior art keywords
head amplifier
magnetic head
rotating body
rotary transformer
magnetic heads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24462484A
Other languages
Japanese (ja)
Inventor
Toshiaki Komiya
小宮 聴明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP24462484A priority Critical patent/JPS61126601A/en
Publication of JPS61126601A publication Critical patent/JPS61126601A/en
Pending legal-status Critical Current

Links

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To reduce the device noise by fixing a layer-built film, to which a flat pack-shaped head amplifier constituted into an integrated circuit is fixed, to a rotating body and connecting electrically this head amplifier to a part between magnetic heads and a rotary transformer. CONSTITUTION:Two magnetic heads 2a and 2b are provided in symmetrical positions on the diameter of a cylindrical rotating body 1 on the upper face of this body 1, and recessed parts 1a and 1b where connection parts between a head amplifier 3 and a rotary transformer 4 are stored are formed in positions approximately orthogonal to the line connecting these magnetic heads 2a and 2b. A layer-built film 5 to which the head amplifier 3 is fixed is fixed to the rotating body 1 by screws 6a and 6b, and magnetic heads 2a and 2b and the head amplifier 3 are connected electrically and the head amplifier 3 and the rotary transformer 4 are connected electrically to connect easily the head amplifier 3 on the rotating body 1 between magnetic heads 2a and 2b and the rotary transformer 4, thus constituting a rotary magnetic head device which is small- sized and is easy to wire.

Description

【発明の詳細な説明】 [発明の技術分野] 本発明は回転磁気ヘッド装置に係・す、特にヘリカルス
キャン方式のビデオテープレコーダ(以下VTRと称す
る)の回転磁気ヘッド装置の構造にl1llfる。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a rotating magnetic head device, and particularly to the structure of a rotating magnetic head device for a helical scan type video tape recorder (hereinafter referred to as VTR).

[発明の技術的背景] ヘリカルスキャン方式のVTRに使用される従来の回転
磁気ヘッド装置は、同心状に固定された上下1対のシリ
ンダの間に、?a数個の磁気ヘッドを同心状に設け、た
回転ディスクを挿入するか、または下部シリンダを固定
しこの下部シリンダに対向し同心状に回転可能に上部シ
リンダを設り、この上部シリンダに複数個の磁気ヘッド
を設けた構造であった。上記の従来の磁気ヘッド装置は
いずれの場合においても、第6図に示すように磁気ヘッ
ド2が検知する電気信号をロータリートランス4を介し
て前記回転磁、気ヘッド装置外に固定されたヘッドアン
プ3に送り、このヘッドアンプ3によって増巾された前
記電気信号をビデオ回路10に送るようになっていた。
[Technical Background of the Invention] A conventional rotating magnetic head device used in a helical scan type VTR has a ? a Several magnetic heads are installed concentrically and a rotating disk is inserted, or a lower cylinder is fixed and an upper cylinder facing this lower cylinder is provided so as to be rotatable concentrically, and multiple magnetic heads are installed in this upper cylinder. The structure was equipped with a magnetic head. In either case, as shown in FIG. 6, in the conventional magnetic head device described above, an electric signal detected by the magnetic head 2 is transmitted via a rotary transformer 4 to a head amplifier fixed outside the rotating magnetic head device. 3, and the electrical signal amplified by the head amplifier 3 is sent to the video circuit 10.

[背景技術の問題点] 上述のように、構成ぎれた従来の回転磁気ヘッド装置に
おいては、磁気ヘッド2への入出力信号をロータリート
ランス4を介してヘッドアンプ3に入力しているため、
機器ノイズが増加しヤずく、再生信号のCN比を低下さ
ヒる原因となるとともに、配線も複雑となり、しかもヘ
ッドアンプ3を回転磁気ヘッド装置外に固定するための
スペースが必要となるという問題があった。
[Problems with Background Art] As described above, in the conventional rotary magnetic head device with a poorly configured structure, input/output signals to the magnetic head 2 are inputted to the head amplifier 3 via the rotary transformer 4.
The problem is that equipment noise increases and the CN ratio of the reproduced signal decreases, the wiring becomes complicated, and space is required to fix the head amplifier 3 outside the rotating magnetic head device. was there.

[発明の目的] 本発明は上述した点に鑑みてなされたものであり、a!
器ノイズを低減して再生信号のCN比を向上させること
ができる回転磁気ヘッド装置を提供することを目的とす
る。
[Object of the Invention] The present invention has been made in view of the above points, and a!
An object of the present invention is to provide a rotating magnetic head device that can reduce device noise and improve the CN ratio of a reproduced signal.

し発明の概要] 本発明は回転磁気ヘッド装置のヘッドアンプを積層フィ
ルム上にフラットパックIC化して固定し、この積層フ
ィルムを回転体上に固設して、この回転体に取付けられ
た磁気ヘッドとこの回転体と対向して設けられたロータ
リートランスとの間に前記ヘッドアンプを電気的に接続
して構成したものである。
SUMMARY OF THE INVENTION] The present invention provides a head amplifier for a rotating magnetic head device fixed as a flat pack IC on a laminated film, this laminated film fixed on a rotating body, and a magnetic head mounted on the rotating body. The head amplifier is electrically connected between the rotary transformer and a rotary transformer provided opposite to the rotating body.

上述の構成によると1機器ノイズが低減して再生信号の
CN比を向上させることができるとともに、従来回転磁
気ヘッド装置の外部に固定されていたヘッドアンプを装
置に内蔵するため、装置を小型化できる。
With the above configuration, it is possible to reduce single-device noise and improve the CN ratio of the reproduced signal, and the head amplifier, which was conventionally fixed outside the rotary magnetic head device, is built into the device, making the device more compact. can.

[発明の実施例] 以下、本考案に係る回転磁気ヘッド装置の一実施例を図
面を参照して説明づる。
[Embodiments of the Invention] Hereinafter, one embodiment of a rotary magnetic head device according to the present invention will be described with reference to the drawings.

第1図は本発明の一実施例を示す分解斜視図である。円
筒状の回転体1の上面には、この回転体1の直径上で対
称の位置に2個の磁気ヘッド2a。
FIG. 1 is an exploded perspective view showing one embodiment of the present invention. Two magnetic heads 2a are provided on the upper surface of the cylindrical rotating body 1 at symmetrical positions on the diameter of the rotating body 1.

2bが固設されており、これらの磁気ヘッド2a。2b are fixedly installed, and these magnetic heads 2a.

2bとを結、S線に対してほぼ直角の方向位置には。2b and at a position approximately perpendicular to the S line.

・それぞれ後述するヘッドアンプ3及びロータリートラ
ンス4の接続部を収納する凹部1a及び1bが形成され
ている。前記回転体1の上面には、この上面にほぼ整合
する位置にドーナツ状の積層フィルム5が載置され、ビ
ス6a、6bにより前記回転体1の上面に形成されたね
じ孔1c、1dを介してこの回転体1に取付りられてい
る。前記積層フィルム5の前記磁気ヘッド2a、2b1
.:整合する位置には、この磁気ヘッド、2a、2bが
それぞれ嵌合する切欠部5a、5bが形成さ札ており。
- Concave portions 1a and 1b are formed to accommodate connection portions of a head amplifier 3 and a rotary transformer 4, respectively, which will be described later. A donut-shaped laminated film 5 is placed on the upper surface of the rotating body 1 at a position that is substantially aligned with the upper surface, and is inserted through screw holes 1c and 1d formed in the upper surface of the rotating body 1 using screws 6a and 6b. It is attached to the rotating body 1 of the lever. The magnetic heads 2a, 2b1 of the laminated film 5
.. : Cutouts 5a and 5b into which the magnetic heads 2a and 2b fit, respectively, are formed at the matching positions.

前記回転体1の表面に形成された四部1a、1bに整合
する位置にはそれぞれ角窓5c、5dが形成されている
。M2図、第3図及び第4図はそれぞれヘッドアンプ3
.磁気ヘッド2及びロータリートランス4と前記積層フ
ィルム5との接続構造を示した断面図である。ヘッドア
ンプ3はハイブリッド化したヘッドアンプをフラットパ
ック状にしたもので、前記積層フィルム5に形成された
角窓50内に装着され、積層フィルム5に半田付【プに
より固定されている。前記回転体1に固設された磁気ヘ
ッド2a、 2bはそれぞれ積層フィルム5に形成され
た切欠部5a、5bに嵌合され、こ 。
Square windows 5c and 5d are formed at positions aligned with the four parts 1a and 1b formed on the surface of the rotating body 1, respectively. Figure M2, Figure 3, and Figure 4 are head amplifier 3, respectively.
.. 3 is a cross-sectional view showing a connection structure between the magnetic head 2, the rotary transformer 4, and the laminated film 5. FIG. The head amplifier 3 is a flat pack of a hybrid head amplifier, and is installed in a corner window 50 formed in the laminated film 5 and fixed to the laminated film 5 by soldering. The magnetic heads 2a and 2b fixed to the rotating body 1 are fitted into cutouts 5a and 5b formed in the laminated film 5, respectively.

れらの切欠部5a、5bに固設された導電性金属部材7
を介して前記ヘッドアンプ3に電気的に接続されている
。また、このヘッドアンプ3は前記角窓5dに固設され
た4電性金属部月8を介してロータリートランス4の下
面に接着さ社た中N易板9に半田付けによって電気的に
接続されている。
A conductive metal member 7 is fixed to these notches 5a and 5b.
It is electrically connected to the head amplifier 3 via. Further, this head amplifier 3 is electrically connected by soldering to a central plate 9 glued to the lower surface of the rotary transformer 4 via a four-electrode metal part 8 fixedly installed in the corner window 5d. ing.

従って、本実施例による回転磁気ヘッド装置の回路構成
は、第5図に示すように磁気ヘッド2とロータリートラ
ンス4との間にヘッドアンプ3が電気的に接続され、こ
のヘッドアンプ3とロータリートランス4を介して磁気
ヘッド3への入出力信号がビデオ回路10に伝達される
ようになっている。
Therefore, in the circuit configuration of the rotating magnetic head device according to this embodiment, as shown in FIG. 5, the head amplifier 3 is electrically connected between the magnetic head 2 and the rotary transformer 4. Input/output signals to the magnetic head 3 are transmitted to the video circuit 10 via the magnetic head 4.

上述のように構成された本実施例の作用を以下に説明す
る。ヘッドアンプ3を固定した積層フィルム5を回転体
1にビス6a、6bで固定し、磁気ヘッド2a、2bと
ヘッドアンプ3.及びヘッドアンプ3と0−タリートラ
ンス4をそれぞれ電気的に接続するだけで、磁気ヘッド
2a、2bとロータリートランス4との間の回転体1上
で簡単にヘッドアンプ3が接続でき、小型な配線容易な
回転磁気ヘッド装置を構成することができ、しかも11
器ノイズが低減できる。
The operation of this embodiment configured as described above will be explained below. The laminated film 5 with the head amplifier 3 fixed thereon is fixed to the rotating body 1 with screws 6a and 6b, and the magnetic heads 2a and 2b and the head amplifier 3. By simply electrically connecting the head amplifier 3 and the 0-tally transformer 4, the head amplifier 3 can be easily connected on the rotating body 1 between the magnetic heads 2a, 2b and the rotary transformer 4, allowing for compact wiring. It is possible to easily configure a rotating magnetic head device, and moreover,
equipment noise can be reduced.

上記実施例においでは磁気ヘッドが2個の場合について
説明したが、磁気ヘッドの数は2個に限定されるもので
はない。
Although the above embodiment has been described with reference to two magnetic heads, the number of magnetic heads is not limited to two.

[発明の効果] 上述の通り、′本考案によれば、回転磁気ヘッド装置の
回転体上に、フラットパックヘッドアンプICを固設し
た積層フィルムをねじ止めし、このヘッドアンプを磁気
ヘッドとロータリートランスとの間に電気的に接続した
ものであるから、装置を小型化し、しかも再生信号のC
N比を向上させることができる。
[Effects of the Invention] As described above, 'According to the present invention, a laminated film on which a flat pack head amplifier IC is fixed is screwed onto the rotating body of a rotating magnetic head device, and this head amplifier is connected to the magnetic head and the rotary body. Since it is electrically connected to the transformer, the device can be made smaller and the C of the reproduced signal can be reduced.
The N ratio can be improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係る回転磁気ヘッド装置の一実施例を
示す分解斜視図、第2図、第3図及び第4図はそれぞれ
要部の接続構造を示す縦断面図、第5図は本実施例の回
路構成を示タブロック図、第6図は従来の回転磁気ヘッ
ド装置の回路構成を示すブロック図である。 1・・・回転体     2・・・磁気ヘッド3・・・
ヘッドアンプ  4・・・ロータリートランス5・・・
積層フィルム  10・・・ビデオ回路代理人 弁理士
  則 近 憲 佑(イ亡1糸)第1図 b 第2図
FIG. 1 is an exploded perspective view showing one embodiment of a rotating magnetic head device according to the present invention, FIGS. 2, 3, and 4 are longitudinal sectional views showing the connection structure of the main parts, and FIG. A block diagram shows the circuit configuration of this embodiment, and FIG. 6 is a block diagram showing the circuit configuration of a conventional rotary magnetic head device. 1...Rotating body 2...Magnetic head 3...
Head amplifier 4...Rotary transformer 5...
Laminated film 10...Video circuit agent Patent attorney Noriyuki Chika (1st thread) Figure 1b Figure 2

Claims (1)

【特許請求の範囲】[Claims] 回転体に固設された磁気ヘッドと、この磁気ヘッドとビ
デオ回路との間にロータリートランスを介して電気信号
の授受を行う回転磁気ヘッド装置において、集積回路化
されたフラットパック状のヘッドアンプが固定された積
層フィルムを前記回転体に固設するとともに、このヘッ
ドアンプを前記磁気ヘッドと前記ロータリートランスと
の間に電気的に接続したことを特徴とする回転磁気ヘッ
ド装置。
In a rotating magnetic head device that transmits and receives electrical signals between a magnetic head fixed to a rotating body and a video circuit via a rotary transformer, a flat pack-shaped head amplifier that is an integrated circuit is used. A rotating magnetic head device characterized in that a fixed laminated film is fixed to the rotating body, and the head amplifier is electrically connected between the magnetic head and the rotary transformer.
JP24462484A 1984-11-21 1984-11-21 Rotary magnetic head device Pending JPS61126601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24462484A JPS61126601A (en) 1984-11-21 1984-11-21 Rotary magnetic head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24462484A JPS61126601A (en) 1984-11-21 1984-11-21 Rotary magnetic head device

Publications (1)

Publication Number Publication Date
JPS61126601A true JPS61126601A (en) 1986-06-14

Family

ID=17121513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24462484A Pending JPS61126601A (en) 1984-11-21 1984-11-21 Rotary magnetic head device

Country Status (1)

Country Link
JP (1) JPS61126601A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62266702A (en) * 1986-05-14 1987-11-19 Mitsumi Electric Co Ltd Drum device for magnetic recording and reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62266702A (en) * 1986-05-14 1987-11-19 Mitsumi Electric Co Ltd Drum device for magnetic recording and reproducing device

Similar Documents

Publication Publication Date Title
JPS61126601A (en) Rotary magnetic head device
JPS5995530U (en) switch mounting device
JP2506592Y2 (en) Magnetic head holding structure
JPS60159514U (en) Magnetic head shield cover mounting structure
JPS6232340Y2 (en)
JP2582650Y2 (en) Magnetic head
JPH01189001A (en) Rotary magnetic head device
JPH02136395U (en)
JPS6066066U (en) semiconductor equipment
JPS5978704U (en) microwave receiver
JPS6164689U (en)
JPS626402A (en) Rotary head type magnetic recording and reproducing device
JPS60118293U (en) Housing for preventing electromagnetic radiation noise
JPS5826731U (en) magnetic head adjustment device
JPS59112307U (en) Recording level adjustment circuit
JPS6251517U (en)
JPS6023908U (en) Rotating magnetic head device
JPH1049848A (en) Magnetic head carriage apparatus
JPS59173110U (en) cylinder unit
JPS58114523U (en) magnetic head
JPS61178716A (en) Rotary magnetic head device
JPH01107304A (en) Magnetic head device
JPS58170010U (en) Tape recorder recording input circuit
JPS6085796U (en) Sealed magnetic disk device
JPS59193034U (en) transmitter