JPH0740391B2 - Magnetic recording / reproducing device - Google Patents
Magnetic recording / reproducing deviceInfo
- Publication number
- JPH0740391B2 JPH0740391B2 JP60104221A JP10422185A JPH0740391B2 JP H0740391 B2 JPH0740391 B2 JP H0740391B2 JP 60104221 A JP60104221 A JP 60104221A JP 10422185 A JP10422185 A JP 10422185A JP H0740391 B2 JPH0740391 B2 JP H0740391B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- magnetic head
- fixed cylinder
- reproducing device
- cylinder
- 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.)
- Expired - Fee Related
Links
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は回転磁気ヘッドを有する磁気記録再生装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus having a rotary magnetic head.
従来の技術 従来、記録トラックに対する磁気ヘッドのトラックずれ
を防止する為に磁気ヘッドの高さを変化さす方法が高級
型の磁気記録再生装置にある。2. Description of the Related Art Conventionally, a high-grade magnetic recording / reproducing apparatus has a method of changing the height of a magnetic head in order to prevent track deviation of the magnetic head with respect to a recording track.
発明が解決しようとする問題点 しかし、従来の磁気ヘッドの高さを変化さす方法は、シ
リンダー構成上非常に複雑となり又、高価であった。本
発明は従来のものに対して固定シリンダー側を変化させ
るものであり、簡単な構成で効果を上げる様にしたもの
である。Problems to be Solved by the Invention However, the conventional method of changing the height of the magnetic head is very complicated and expensive due to the structure of the cylinder. The present invention changes the fixed cylinder side as compared with the conventional one, and is intended to improve the effect with a simple configuration.
問題点を解決するための手段 上記問題を解決するために本発明の磁気記録再生装置は
固定シリンダーに熱膨張係数の異なる部材を設けること
により、温度条件により磁気ヘッドに対するリードの相
対高さが変る様に構成したものである。In order to solve the above problems, in the magnetic recording / reproducing apparatus of the present invention, the fixed cylinder is provided with members having different thermal expansion coefficients, so that the relative height of the lead to the magnetic head changes depending on the temperature condition. It is configured like this.
作用 固定シリンダーに熱膨張係数の異なる部材を設けること
により、バイメタル効果で温度条件によって磁気ヘッド
に対する固定シリンダーに設けられたリードとの相対高
さが変る様に構成い、磁気ヘッドのトラックずれを少な
くすることができる。By providing the fixed cylinder with members with different coefficients of thermal expansion, the relative height between the magnetic head and the lead provided on the fixed cylinder changes depending on the temperature conditions due to the bimetal effect, and the track deviation of the magnetic head is reduced. can do.
実施例 第１図，第２図に本発明の実施例を示す。第１図はシリ
ンダー部全体を示す断面図、第２図は本発明の部分を示
す。それらの図において、温度条件等が変る事により磁
気テープ10の伸び縮み等により磁気テープ10の記録トラ
ックと磁気ヘッド２のトラックずれを生ずる。本発明は
固定シリンダー３にシリンダーと熱膨張係数の異なるバ
イメタル効果部材９を設けて、温度条件により固定シリ
ンダー３が５−Ａ又は５−Ｂの位置に変化し、リードか
らのヘッド高さＨが相対的に変ることになり、バイメタ
ル効果部材の材料及び取付け構成によって概略のトラッ
クずれ補正が可能となる。Embodiment An embodiment of the present invention is shown in FIGS. 1 and 2. FIG. 1 is a sectional view showing the entire cylinder portion, and FIG. 2 shows a portion of the present invention. In these figures, the recording track of the magnetic tape 10 and the track of the magnetic head 2 are displaced due to expansion and contraction of the magnetic tape 10 due to changes in temperature conditions and the like. In the present invention, the fixed cylinder 3 is provided with the bimetal effect member 9 having a different thermal expansion coefficient from that of the cylinder, and the fixed cylinder 3 is changed to the position of 5-A or 5-B depending on the temperature condition, and the head height H from the lead is changed. It will be relatively changed, and it is possible to roughly correct the track deviation depending on the material and mounting structure of the bimetal effect member.
発明の効果 以上の説明から明らかな様に、本発明によれば、固定シ
リンダーに熱膨張係数の異なる部材を設けることによ
り、バイメタル効果で温度条件によって磁気ヘッドとリ
ードとの相対高さが変わるように構成できるため、簡単
な構成で温度条件差によるトラックずれを少なくするこ
とができ、その工業的効果は大なるものである。EFFECTS OF THE INVENTION As is apparent from the above description, according to the present invention, the relative height between the magnetic head and the lead is changed by the temperature condition due to the bimetal effect by providing the fixed cylinder with members having different thermal expansion coefficients. Since it can be configured as described above, it is possible to reduce the track shift due to the temperature condition difference with a simple configuration, and the industrial effect thereof is great.
第１図は本発明の実施例におけるシリンダーの全体構成
を示す断面図、第２図は同本発明の実施例を示す部分断
面図である。 １……回転シリンダー、２……回転シリンダーに取付け
られた磁気ヘッド、３……固定シリンダー、４……主
軸、５……軸受ベアリング、６……スリーブ、７……ス
ラスト押えブッシュ、８……DDモータ部、９……バイメ
タル効果部材、10……磁気テープ。FIG. 1 is a sectional view showing the entire structure of a cylinder in an embodiment of the present invention, and FIG. 2 is a partial sectional view showing the embodiment of the present invention. 1 ... Rotating cylinder, 2 ... Magnetic head mounted on the rotating cylinder, 3 ... Fixed cylinder, 4 ... Main shaft, 5 ... Bearing bearing, 6 ... Sleeve, 7 ... Thrust pressing bush, 8 ... DD motor part, 9 ... Bimetal effect member, 10 ... Magnetic tape.
Claims (1)
テープを案内するリードを有する固定シリンダーと、前
記軸に固定され磁気ヘッドを有する回転シリンダーとを
備えた磁気記録再生装置において、前記固定シリンダー
の中心部と外周部とを連結する連結部の、前記軸と直角
をなす面に、バイメタルを構成すべく前記連結部とは異
なる熱膨張係数を持つ部材を取付けたことを特徴とする
磁気記録再生装置。1. A magnetic recording / reproducing apparatus comprising a fixed cylinder having a rotatable shaft at its center and a lead for guiding a magnetic tape on its outer periphery, and a rotary cylinder fixed to said shaft and having a magnetic head. , A member having a coefficient of thermal expansion different from that of the connecting portion is attached to a surface of a connecting portion connecting the central portion and the outer peripheral portion of the fixed cylinder, the surface being perpendicular to the axis, so as to form a bimetal. And a magnetic recording and reproducing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60104221A JPH0740391B2 (en) | 1985-05-16 | 1985-05-16 | Magnetic recording / reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60104221A JPH0740391B2 (en) | 1985-05-16 | 1985-05-16 | Magnetic recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61261844A JPS61261844A (en) | 1986-11-19 |
| JPH0740391B2 true JPH0740391B2 (en) | 1995-05-01 |
Family
ID=14374904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60104221A Expired - Fee Related JPH0740391B2 (en) | 1985-05-16 | 1985-05-16 | Magnetic recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740391B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2627888B1 (en) * | 1988-02-26 | 1991-09-13 | Schlumberger Ind Sa | TAPE GUIDING DEVICE FOR MAGNETIC RECORDER / PLAYER |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5288312A (en) * | 1976-01-20 | 1977-07-23 | Matsushita Electric Ind Co Ltd | Tape guide cylinder |
| JPS5619549A (en) * | 1979-07-27 | 1981-02-24 | Hitachi Ltd | Running supporter for magnetic recording medium |
| JPS57198532A (en) * | 1981-05-29 | 1982-12-06 | Hitachi Ltd | Head position adjusting device for vtr |
-
1985
- 1985-05-16 JP JP60104221A patent/JPH0740391B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61261844A (en) | 1986-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |