JP2532436Y2 - Rotating head type magnetic recording / reproducing device - Google Patents
Rotating head type magnetic recording / reproducing deviceInfo
- Publication number
- JP2532436Y2 JP2532436Y2 JP1993000467U JP46793U JP2532436Y2 JP 2532436 Y2 JP2532436 Y2 JP 2532436Y2 JP 1993000467 U JP1993000467 U JP 1993000467U JP 46793 U JP46793 U JP 46793U JP 2532436 Y2 JP2532436 Y2 JP 2532436Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- projection
- magnetic head
- protrusion
- winding angle
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本考案は、磁気ヘッドをその先端
が外周面より突出するように搭載した回転シリンダを、
円筒状の固定シリンダ上に同軸的に配置し、磁気テープ
を前記磁気ヘッドの回転軌跡に沿って螺旋状に予め定め
られた所定巻付け角度だけ巻き付けた状態で走行せし
め、前記磁気ヘッドにより前記磁気テープ上に信号を記
録再生する回転ヘッド型磁気記録再生装置に関するもの
で、特に、前記固定シリンダの形状を改良し、前記磁気
ヘッドと磁気テープとの良好な当接関係が得られるよう
にしたものである。The present invention relates to a rotary cylinder having a magnetic head mounted so that its tip protrudes from the outer peripheral surface.
The magnetic tape is arranged coaxially on a cylindrical fixed cylinder, and the magnetic tape is caused to run in a state of being spirally wound along a rotation locus of the magnetic head at a predetermined winding angle, and the magnetic head is driven by the magnetic head. The present invention relates to a rotary head type magnetic recording / reproducing apparatus for recording / reproducing a signal on / from a tape, and in particular, the shape of the fixed cylinder is improved so that a good contact relationship between the magnetic head and the magnetic tape can be obtained. It is.
【０００２】[0002]
【従来の技術】図４および図５は従来の２ヘッド方式の
回転ヘッド型磁気記録再生装置の要部を示すもので、１
は磁気ヘッド２がその先端が外周より３０μm だけ突出
するように配置された回転シリンダであり、円筒状の固
定シリンダ３上に同軸的に回転駆動可能に配置されてい
る。４は磁気テープであり、前記磁気ヘッド２の回転軌
跡に沿って、予め定められた巻付け角度範囲にわたって
螺旋状に巻き付けられて走行している。2. Description of the Related Art FIGS. 4 and 5 show the essential parts of a conventional two-head type rotary head type magnetic recording / reproducing apparatus.
Is a rotary cylinder in which the tip of the magnetic head 2 protrudes by 30 μm from the outer circumference, and is rotatably driven coaxially on a cylindrical fixed cylinder 3. Reference numeral 4 denotes a magnetic tape, which is spirally wound over a predetermined winding angle range along the rotation locus of the magnetic head 2 and travels.
【０００３】そして前記磁気ヘッド２の回転にともなっ
て前記磁気テープ４上に順次信号を記録再生する。この
ような回転ヘッド型磁気記録再生装置の一つの問題点
は、磁気ヘッド２が回転シリンダ１の回転にともなっ
て、磁気テープ４に当接、離脱を繰り返すことによっ
て、磁気テープ４に振動が発生することである。[0003] As the magnetic head 2 rotates, signals are sequentially recorded and reproduced on the magnetic tape 4. One problem with such a rotating head type magnetic recording / reproducing apparatus is that the magnetic head 2 repeatedly contacts and separates from the magnetic tape 4 as the rotating cylinder 1 rotates, so that the magnetic tape 4 generates vibration. It is to be.
【０００４】この問題を解決するために、上述の磁気テ
ープの巻付け角度範囲外の前記固定シリンダ３に磁気ヘ
ッド２の突出量の1.2 〜2.0 倍の高さの突起部５を形成
し、この突起部５に磁気テープ４を接触せしめることに
より、前記の振動を吸収せんとするものがある。In order to solve this problem, a protrusion 5 having a height of 1.2 to 2.0 times the amount of protrusion of the magnetic head 2 is formed on the fixed cylinder 3 outside the above-mentioned magnetic tape winding angle range. In some cases, the above-described vibration is absorbed by bringing the magnetic tape 4 into contact with the projection 5.
【０００５】[0005]
【考案が解決しようとする課題】しかしながら、上記構
成では、前記突起部５の近傍において、図６に示すよう
に磁気テープ４と固定シリンダ３との間に空隙６が生
じ、この空隙６により磁気テープ４に振動が発生し、こ
の空隙部における磁気ヘッドと磁気テープの接触が必ず
しも良好なものではなかった。However, in the above configuration, a gap 6 is formed between the magnetic tape 4 and the fixed cylinder 3 near the projection 5 as shown in FIG. Vibration occurred in the tape 4, and the contact between the magnetic head and the magnetic tape in the gap was not always good.
【０００６】本考案は、簡単な構成により、より振動が
少なく、安定な記録再生動作が望める具体的な構成を提
供するものである。SUMMARY OF THE INVENTION The present invention provides a specific configuration that can achieve a stable recording / reproducing operation with less vibration by a simple configuration.
【０００７】[0007]
【課題を解決するための手段】本考案の回転ヘッド型磁
気記録再生装置は、磁気テープの所定巻付け角度範囲外
の固定シリンダに磁気ヘッドの突出量の1.2 〜2.0 倍の
高さを有する第一の突起部を形成するとともに、前記巻
付け角度範囲内に前記第一の突起部に連続して2 〜15゜
の巻付け角度範囲にわたって前記磁気ヘッドの突出量の
0.5 〜0.8 倍の高さを有する第二の突起部を形成したこ
とを特徴とする。SUMMARY OF THE INVENTION A rotary head type magnetic recording / reproducing apparatus according to the present invention provides a fixed cylinder outside a predetermined winding angle range of a magnetic tape by 1.2 to 2.0 times a projection amount of a magnetic head .
Forming a first protrusion having a height ,
2 to 15 ° continuously with the first projection within the attachment angle range
Of the protrusion amount of the magnetic head over the winding angle range of
A second projection having a height of 0.5 to 0.8 times is formed.
【０００８】[0008]
【作用】上述の構成によれば、第一の突起部により磁気
ヘッド２が回転シリンダ１の回転にともなって、急激に
磁気テープ４に当接、離脱を繰り返すこともなく磁気テ
ープ４の振動の発生も軽減され、また、第一の突起部に
連続して、第二の突起部が形成されているため、第一の
突起部の近傍において、磁気テープ４とシリンダとの間
に大きな空隙が生じることもなく、安定な記録再生が望
めるものである。According to the above construction, the magnetic head 2 is not abruptly brought into contact with or separated from the magnetic tape 4 by the rotation of the rotary cylinder 1 by the first projection, and the vibration of the magnetic tape 4 is not repeated. Occurrence is also reduced, and since the second projection is formed following the first projection, a large gap is formed between the magnetic tape 4 and the cylinder near the first projection. Stable recording and reproduction can be expected without occurrence.
【０００９】[0009]
【実施例】以下図面を参照して、本考案の一実施例を説
明する。図１ないし図３において、１は磁気ヘッド２が
配置された回転シリンダ、３は円筒状の固定シリンダ、
４は磁気テープ、５は第一の突起部であり、以上の構成
は前述の従来構成と同一である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a rotary cylinder on which a magnetic head 2 is arranged, 3 denotes a cylindrical fixed cylinder,
Reference numeral 4 denotes a magnetic tape, and reference numeral 5 denotes a first projection. The above configuration is the same as the above-described conventional configuration.
【００１０】従来構成と異なる点は、前記第一の突起部
５に連続して、テープ巻付け角度範囲内に前記磁気ヘッ
ド２の突出量より小なる高さの第二の突出部７を、２°
〜１５°にわたって形成した点にある。The difference from the conventional structure is that the second protruding portion 7 having a height smaller than the protruding amount of the magnetic head 2 is provided within the tape winding angle range, following the first protruding portion 5. 2 °
The point is that it is formed over １５15 °.
【００１１】この構成によれば、前記第二の突出部７の
存在により、第一の突起部５の近傍においても、図３に
示すように、磁気テープ４とシリンダ間に大きな空隙６
は発生せず、磁気テープの振動は軽減され、安定な記録
再生が望めるものである。According to this configuration, due to the presence of the second protrusion 7, the large gap 6 between the magnetic tape 4 and the cylinder also exists near the first protrusion 5, as shown in FIG.
No vibration occurs, the vibration of the magnetic tape is reduced, and stable recording and reproduction can be expected.
【００１２】なお、前記第二の突起部７の高さは、種々
の実験の結果、磁気ヘッドの突出量の0.5 〜0.8 倍程度
がよく、0.8 倍を越すと磁気ヘッドとテープとの圧接力
が弱くなり、0.5 倍以下であると磁気テープ４とシリン
ダ間との空隙を狭める効果があまりなくなるものであ
る。As a result of various experiments, the height of the second projection 7 is preferably about 0.5 to 0.8 times the amount of protrusion of the magnetic head, and when it exceeds 0.8 times, the pressure contact force between the magnetic head and the tape is increased. When the ratio is 0.5 times or less, the effect of narrowing the gap between the magnetic tape 4 and the cylinder is negligible.
【００１３】[0013]
【考案の効果】以上のように本考案によれば、磁気ヘッ
ドの突出量の1.2 〜2.0 倍の高さを有する第一の突起部
に連続して、磁気テープの所定巻付け角度範囲内に2 〜
15゜の磁気テープの巻付け角度範囲にわたって磁気ヘッ
ドの突出量の0.5 〜0.8 倍の高さを有する第二の突起部
を形成するという、簡単な構成により、従来問題になっ
ていた磁気テープの振動を除去軽減出来、安定な記録再
生が望めるものである。[Effects of the Invention] As described above, according to the present invention, the magnetic head
First protrusion having a height of 1.2 to 2.0 times the protrusion amount
2 to within the specified winding angle range of the magnetic tape.
Magnetic head over a 15 ° magnetic tape wrap angle range
Second protrusion having a height of 0.5 to 0.8 times the protrusion amount of the
By be called, simple construction form, a vibration of the magnetic tape which has been a conventional problem can be eliminated relief, in which a stable recording and reproduction can be expected.
【図１】本考案の回転ヘッド型磁気記録再生装置の一実
施例の要部を示す斜視図FIG. 1 is a perspective view showing a main part of an embodiment of a rotary head type magnetic recording / reproducing apparatus of the present invention.
【図２】同実施例の要部側断面図FIG. 2 is a sectional side view of a main part of the embodiment.
【図３】同実施例の要部平断面図FIG. 3 is a cross-sectional plan view of a main part of the embodiment.
【図４】従来の回転ヘッド型磁気記録再生装置の一例の
要部を示す斜視図FIG. 4 is a perspective view showing a main part of an example of a conventional rotary head type magnetic recording / reproducing apparatus.
【図５】同従来例の要部断面図FIG. 5 is a sectional view of a main part of the conventional example.
【図６】同従来例の要部断平面図FIG. 6 is a fragmentary plan view of the conventional example.
１ 回転シリンダ ２ 磁気ヘッド ３ 固定シリンダ ４ 磁気テープ ５ 第一の突起部 ６ 空隙 ７ 第二の突起部 DESCRIPTION OF SYMBOLS 1 Rotating cylinder 2 Magnetic head 3 Fixed cylinder 4 Magnetic tape 5 First projection 6 Air gap 7 Second projection
Claims (1)
るように搭載した回転シリンダを、円筒状の固定シリン
ダ上に同軸的に配置し、磁気テープを前記磁気ヘッドの
回転軌跡に沿って予め定められた所定巻付け角度だけ螺
旋状に巻き付けた状態で走行せしめ、前記磁気ヘッドに
より前記磁気テープ上に信号を記録再生する回転ヘッド
型磁気記録再生装置において、前記所定巻付け角度範囲
外の前記固定シリンダに前記磁気ヘッドの突出量の1.2
〜2.0 倍の高さを有する第一の突起部を形成するととも
に、前記巻付け角度範囲内に前記第一の突起部に連続し
て2 〜15゜の巻付け角度範囲にわたって前記磁気ヘッド
の突出量の0.5 〜0.8 倍の高さを有する第二の突起部を
形成したことを特徴とする回転ヘッド型磁気記録再生装
置。1. A rotary cylinder on which a magnetic head is mounted so that its tip protrudes from an outer peripheral surface is coaxially arranged on a cylindrical fixed cylinder, and a magnetic tape is previously moved along a rotation locus of the magnetic head. In a rotary head type magnetic recording / reproducing apparatus which runs in a state of being spirally wound by a predetermined predetermined winding angle and records / reproduces a signal on / from the magnetic tape by the magnetic head, the rotary head outside the predetermined winding angle range. The fixed cylinder has a protrusion of 1.2
Forming a first protrusion having a height of ~ 2.0 times, and connecting to the first protrusion within the winding angle range.
The magnetic head over a winding angle range of 2 to 15 °.
A rotary head type magnetic recording / reproducing apparatus characterized in that a second projection having a height of 0.5 to 0.8 times the projection amount of the second projection is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993000467U JP2532436Y2 (en) | 1993-01-12 | 1993-01-12 | Rotating head type magnetic recording / reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993000467U JP2532436Y2 (en) | 1993-01-12 | 1993-01-12 | Rotating head type magnetic recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0658412U JPH0658412U (en) | 1994-08-12 |
| JP2532436Y2 true JP2532436Y2 (en) | 1997-04-16 |
Family
ID=11474610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993000467U Expired - Lifetime JP2532436Y2 (en) | 1993-01-12 | 1993-01-12 | Rotating head type magnetic recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532436Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03120659A (en) * | 1989-10-04 | 1991-05-22 | Sony Corp | Rotary head device |
| JPH03245347A (en) * | 1990-02-22 | 1991-10-31 | Matsushita Electric Ind Co Ltd | Rotary magnetic head drum device |
| JP3025032B2 (en) * | 1991-01-28 | 2000-03-27 | 松下電器産業株式会社 | Rotating head device |
-
1993
- 1993-01-12 JP JP1993000467U patent/JP2532436Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0658412U (en) | 1994-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |