JPS59195316A - Rotary reproduction magnetic head device - Google Patents
Rotary reproduction magnetic head deviceInfo
- Publication number
- JPS59195316A JPS59195316A JP7055183A JP7055183A JPS59195316A JP S59195316 A JPS59195316 A JP S59195316A JP 7055183 A JP7055183 A JP 7055183A JP 7055183 A JP7055183 A JP 7055183A JP S59195316 A JPS59195316 A JP S59195316A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- reproducing magnetic
- rotary
- attached
- support spring
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は再生磁気ヘッドが回転シリンダの回転軸に平行
に容易に移動するようにした１ｕ転磁気ヘツド装置に関
し、特に再生時に再生磁気ヘッドか記録トランクを、で
きるたけ正確にトレースするように支持バネ部を形成し
、また長期の使用に耐える支持バネ部から構成された回
転再生磁気ヘッド装置に関するＪ。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a 1U rotating magnetic head device in which a reproducing magnetic head is easily moved parallel to the rotation axis of a rotary cylinder, and in particular, the present invention relates to a 1U rotating magnetic head device in which a reproducing magnetic head is easily moved parallel to the rotation axis of a rotary cylinder. J, which relates to a rotary reproducing magnetic head device having a support spring part formed in such a manner as to be traced in the same direction, and which is constructed of a support spring part that can be used for a long period of time.
本発明は昭和５８年４月４日出願の「回転再生磁気ヘッ
ド装置」の改良に関する。The present invention relates to an improvement of the "Rotating Reproducing Magnetic Head Device" filed on April 4, 1980.
従来例は特公昭５６−５０３２９、特願昭５３−４．７
００７に示されているように、圧覗素子を用いて自動ト
ラッキングを行なうもの、及び磁気結合を用いて自動ト
ランキング全行なうものの二つのタイプがある。これら
の従来例では再生時に記録トランクと再生係気ヘッドと
の相対位置関係を時々刻々検出し、この検出信号を利用
して、圧眠素子又は磁気結合を介して、再生磁気ヘッド
をトランク軌跡に正しくトフンキスグさせているのであ
る。だが、これらの従来例は次に示す四つの欠点金持つ
又いる。Conventional examples include Japanese Patent Publication No. 56-50329 and Japanese Patent Application No. 53-4.7.
As shown in 007, there are two types: one in which automatic tracking is performed using a viewing element, and the other in which all automatic trunking is performed using magnetic coupling. In these conventional examples, during playback, the relative positional relationship between the recording trunk and the playback magnetic head is detected moment by moment, and this detection signal is used to move the playback magnetic head to the trunk trajectory via the compression device or magnetic coupling. It's making you laugh correctly. However, these conventional examples also have the following four drawbacks.
第１には記録トランクと再生磁気ヘンドとの相対位置関
係を圧嘔的筺たは磁気的に検出するための機構が必要な
ことであり、第２には検出された相対位置関係からの甑
気信号Ｌ９再生個気ヘンドを制御・駆動するための回路
が必要なことであり、第５には電気エネルギーを機械エ
ネルギーに変換するための機構が必・要なことであり、
第４には制御・駆動するためのｊｇ力が必要なことであ
る。Firstly, a mechanism for detecting the relative positional relationship between the recording trunk and the reproducing magnetic head is required either visually or magnetically. A circuit is required to control and drive the air signal L9 regeneration individual air hand, and fifthly, a mechanism for converting electrical energy into mechanical energy is necessary.
Fourthly, jg force is required for control and driving.
本発明は従来例の４つの欠点を除去したもので、その目
的は極めて簡単な構成金持ち、消費エネルギーの不要な
自動トランキング装置を提供−Ｃることである。The present invention eliminates the four drawbacks of the prior art, and its purpose is to provide an automatic trunking device that is extremely simple in construction and does not require energy consumption.
以下実施例に基づき本発明の詳細な説明する。The present invention will be described in detail below based on Examples.
第１図と２図は本発明による回転再生磁気ヘッド装置ｔ
の実施例の断面図と平面図であり、回転シリンダ５に支
持バネ部６が収り刊けられ、支持バネ部６には再生磁気
ヘッド支持板５が取り付けら７１１、さらに再生’ｊＢ
気ヘンド支持板り＆ζＩＩ）化１′１Ｇ気ヘッド１が取
り付けられている。ここで支持バネ部６は回転シリンダ
の回転軸と平行方向（第１図の矢印のような上下方向）
に移動しやすいような形状で構成される。第２図の実施
例−Ｃは＋１＋生出気ヘンド支持叛５は振幅が小きいと
きは回転軸に平行に移動するが、振幅が大きいときは平
行ＶＣならない。＠５と４図は振幅が大きくても回転軸
にほぼ平行に移動するように成形したものである。FIGS. 1 and 2 show a rotary reproducing magnetic head device t according to the present invention.
FIG. 7 is a sectional view and a plan view of an embodiment in which a support spring part 6 is housed in a rotary cylinder 5, a reproduction magnetic head support plate 5 is attached to the support spring part 6, and a reproduction magnetic head support plate 5 is attached to the support spring part 6.
The air head 1 is attached to the air head support plate &ζII). Here, the support spring part 6 is in a direction parallel to the rotation axis of the rotation cylinder (up and down direction as shown by the arrow in Fig. 1).
Constructed in a shape that makes it easy to move. In the embodiment-C of FIG. 2, the +1+ output air hand support 5 moves parallel to the rotation axis when the amplitude is small, but does not move parallel to the rotation axis when the amplitude is large. Figures @5 and 4 are molded so that they move almost parallel to the rotation axis even if the amplitude is large.
再生磁気ヘッド１の走行方向に対する再生磁気ヘッド支
持Ｆｊ、５と支持バネ部６による剛性ＦｉＨは十分に強
く、回転シリンダ５の回転軸と平行方向の再生磁気ヘッ
ド支持板５と支持バネ部６による剛性ＥＶは弱く形成さ
れでいる。回転軸方向の剛性ＥＶと走行方向の剛性ＥＨ
との比ＥＶ／ＥＨは１０−２から１Ｏ−６１採用する。The rigidity FiH of the reproducing magnetic head support Fj, 5 and the support spring part 6 in the running direction of the reproducing magnetic head 1 is sufficiently strong, and the rigidity FiH of the reproducing magnetic head support plate 5 and the support spring part 6 in the direction parallel to the rotation axis of the rotary cylinder 5 is strong enough. The rigidity EV is formed weakly. Rigidity EV in the rotational axis direction and rigidity EH in the running direction
The ratio EV/EH is 10-2 to 1O-61.
走行方向の剛性］１ｉＨを大きく取っているのは走行む
らを小さくして再生信号の時間軸方向のゆらぎを小さく
し、画面のゆれ（シンター）を少なくするためである。Rigidity in Running Direction] The reason why 1iH is set large is to reduce running unevenness, to reduce fluctuations in the time axis direction of the reproduced signal, and to reduce screen shake (sinter).
また回転方向の剛性ＥＶ’ｌＨ極端に小さく取るのは再
生磁気ヘンドアとビデオテープとの間の磁気結合を利用
するためである。第５図に示づ−ように再生磁気ヘッド
１にＡの位置にある時が正常であり、Ｂの位置ではアジ
マス角度が異なシ止常位置ではない。再生磁気ヘッド１
とビデオテープとの間の磁気的結合状態全ポテンシャル
エネルギーＰｍで表現すると第６図のように位ｔａ：Ａ
及びＡ′でポテンシャルの谷が形成される。さらに支持
バネ部６０回転軸方向の屈曲によるポテンシャルエネル
ギーｐｓを考慮すると（第７図参照ン、総合ポテンシャ
ルエネルギーＰｍ十Ｐｓは第８図のようになる。つまり
再生磁気ヘッド１は第８図のポテンシャルの谷Ａ点に中
心を取るように回転を続けるのである。The reason why the rigidity EV'lH in the rotational direction is made extremely small is to utilize the magnetic coupling between the reproduction magnetic hand door and the video tape. As shown in FIG. 5, when the reproducing magnetic head 1 is at position A, it is normal, and at position B, the azimuth angle is different and it is not the normal position. Reproducing magnetic head 1
The state of magnetic coupling between the tape and the videotape is expressed in terms of the total potential energy Pm, as shown in Figure 6: ta:A
A potential valley is formed at and A'. Furthermore, considering the potential energy ps due to the bending of the support spring portion 60 in the rotational axis direction (see FIG. 7), the total potential energy Pm + Ps is as shown in FIG. It continues to rotate so that the center is at point A in the valley.
すなわち本発明による′＄：施例により再生磁気ヘッド
はビデオテープの記録トランクを正しくトレースするの
である。従来例のような複雑な構造と重子回路がなくて
も本発明による非常ＶＣ簡単な構造でを）つても再生磁
気ヘッドは正しく記録トランクをトレースできるのであ
る。That is, according to the embodiment of the present invention, the reproducing magnetic head correctly traces the recording trunk of the video tape. Even without the complicated structure and multiplex circuit of the conventional example, the reproducing magnetic head can correctly trace the recording trunk even with the very simple VC structure of the present invention.
さらに本発明では支持バネ部６の材料として時計用ヒゲ
ゼンマイの旧料金使用する。耐久特性の優れたヒゲゼン
マイ用恒弾性材料つまりコエリ゛ンバー、ニバロンクス
、エリンバ−材’ｔ 使用ｔ−ル。Furthermore, in the present invention, the material used for the support spring portion 6 is the old material used for balance springs for watches. Constant modulus materials for hairsprings with excellent durability, such as corelimber, nivalonx, and elinvar materials, are used.
支持バネ部６は耐久性を特に要求されるから、１０１０
〜１０１１回の糸切にも十分に耐えられる時計用バネ材
を用いる。Since the support spring part 6 is particularly required to have durability, it has a diameter of 1010
A watch spring material that can withstand up to 1011 thread cuts is used.
なお本発明は耐久性能の良い材料、ピアノ線、チタン合
金、炭素繊維、アモルファス材、ウィスカー材などを用
いてもよい。In the present invention, materials with good durability such as piano wire, titanium alloy, carbon fiber, amorphous material, whisker material, etc. may be used.
第１図、第２図は、本発明による回転磁気ヘッド装置の
実施例の断面図、平面図、
第５図、第４図は本発明による他の実施例の平面図、
第５図はビデオテープに記録されたトランクと再生磁気
ヘッドの位置を示す図、
′；ｉ３．６，７．８図はボテンンヤルエネルギーＰｍ
。
ＰＳ、ｐ６−１−ｐｍを示すグラフである。
１・・・再生磁気ヘッド
５・・・再生磁気ヘッド支持板
５・・・回転シリンダ ６・・・支持バネ部８・・・
説明の為の矢印
以 上
出願人 株式会社 諏訪精工台
代理人 升埋土 最 上 務1 and 2 are a sectional view and a plan view of an embodiment of a rotating magnetic head device according to the present invention, FIGS. 5 and 4 are plan views of another embodiment of the present invention, and FIG. 5 is a video Figure showing the position of the trunk recorded on the tape and the reproducing magnetic head;
. It is a graph showing PS, p6-1-pm. 1... Reproducing magnetic head 5... Reproducing magnetic head support plate 5... Rotating cylinder 6... Support spring portion 8...
Above the arrows for explanation Applicant Suwa Seikodai Co., Ltd. Agent Masu Uido Mogami
Claims (1)
支詩板、及び再生磁気ヘッド支持板を取り付けた支持バ
ネ部、及び叉持バネ部を取り付けた回転シリンダから構
成ぢれ、しかも再生磁気ヘッドが回転シリンダの回転軸
と平行方向に移動しやすいように支持バネ部が成形され
たことを特徴とする回転再生磁気ヘッド装置。 （２）支持バネ部が恒仰性材から成る特許請求の範囲第
１項記載の回転再生磁気ヘッド装置。[Scope of Claims] <11 Consisting of a reproducing magnetic head supporting plate to which a reproducing magnetic head is attached, a supporting spring portion to which a reproducing magnetic head supporting plate is attached, and a rotating cylinder to which a gripping spring portion is attached, and A rotary reproducing magnetic head device characterized in that a support spring portion is formed so that the reproducing magnetic head can easily move in a direction parallel to a rotation axis of a rotary cylinder. (2) The rotary reproducing magnetic head device according to claim 1, wherein the support spring portion is made of a static material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7055183A JPS59195316A (en) | 1983-04-21 | 1983-04-21 | Rotary reproduction magnetic head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7055183A JPS59195316A (en) | 1983-04-21 | 1983-04-21 | Rotary reproduction magnetic head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59195316A true JPS59195316A (en) | 1984-11-06 |
Family
ID=13434765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7055183A Pending JPS59195316A (en) | 1983-04-21 | 1983-04-21 | Rotary reproduction magnetic head device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59195316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04250073A (en) * | 1991-01-18 | 1992-09-04 | Rohm Co Ltd | Thermal head |
| EP0833308A1 (en) * | 1996-09-30 | 1998-04-01 | Deutsche Thomson Brandt | A device for guiding an object in a translatory movement |
-
1983
- 1983-04-21 JP JP7055183A patent/JPS59195316A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04250073A (en) * | 1991-01-18 | 1992-09-04 | Rohm Co Ltd | Thermal head |
| EP0833308A1 (en) * | 1996-09-30 | 1998-04-01 | Deutsche Thomson Brandt | A device for guiding an object in a translatory movement |
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