JPH01191320A - Tape - Google Patents
TapeInfo
- Publication number
- JPH01191320A JPH01191320A JP63013828A JP1382888A JPH01191320A JP H01191320 A JPH01191320 A JP H01191320A JP 63013828 A JP63013828 A JP 63013828A JP 1382888 A JP1382888 A JP 1382888A JP H01191320 A JPH01191320 A JP H01191320A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- buoyancy
- traveling guide
- friction
- superconductor
- 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
- 230000004907 flux Effects 0.000 claims abstract description 9
- 239000002887 superconductor Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 2
- 229910052731 fluorine Inorganic materials 0.000 abstract 2
- 239000011737 fluorine Substances 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-O 1H-indol-1-ium Chemical compound C1=CC=C2[NH2+]C=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-O 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はテープ、特に記録・再生に用いられるテープに
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to tapes, particularly tapes used for recording and reproduction.
従来の技術
従来のテープ走行系の一例としてビデオテープレコーダ
ー（以下ＶＴＲと呼ぶ）をあげれば、磁気テープはポリ
エステルなどのベースフィルムに磁性層を設けてあり、
傾斜ポストなどのように回転しない走行ガイドにはステ
ンレスなどが使用されている（例えば、ＶＴＲテープ走
行系の設計と評価、第５頁、トリケッブス）。BACKGROUND OF THE INVENTION An example of a conventional tape running system is a video tape recorder (hereinafter referred to as VTR). Magnetic tape has a magnetic layer on a base film such as polyester.
Stainless steel or the like is used for running guides that do not rotate, such as inclined posts (for example, Design and Evaluation of VTR Tape Running Systems, p. 5, Trikebbs).
発明が解決しようとする課題
しかしながら上記の様な構成では、例えば傾斜ポストの
ように回転しないガイドの場合には特にテープと走行ガ
イドとの摩擦が大きく、テープの走行安定性が損なわれ
、記録・再生性能が低下するという問題がある。Problems to be Solved by the Invention However, with the above configuration, for example, in the case of a guide that does not rotate, such as a tilted post, the friction between the tape and the running guide is large, which impairs the running stability of the tape, resulting in poor recording and recording performance. There is a problem that playback performance deteriorates.
本発明はかかる点に鑑みてなされたもので、テープと走
行ガイドとの摩擦を無くするか、少なくとも軽減するテ
ープを提供することを目的としている。The present invention has been made in view of this problem, and an object of the present invention is to provide a tape that eliminates or at least reduces friction between the tape and the running guide.
課題を解決するための手段
上記課題を解決するため、本発明のテープは、超電導体
の粉体をバックコートしてあり、走行ガイドは磁束を発
生する構造としたものである。Means for Solving the Problems In order to solve the above problems, the tape of the present invention is back coated with superconductor powder, and the running guide is structured to generate magnetic flux.
作用
上記構成によれば、走行ガイドが発生する磁束を、テー
プはその内部から排除するという所謂マイスナー効果を
生じ、走行ガイドから離脱するかのごとく浮力を受ける
。この浮力が十分に強い場合にはテープは走行ガイドか
ら完全に浮き、摩擦はなくなる。浮力が小さい場合には
摩擦は軽減される。Effect: According to the above structure, the magnetic flux generated by the running guide is removed from inside the tape, which is the so-called Meissner effect, and the tape is subjected to buoyancy as if it were detached from the running guide. If this buoyancy is strong enough, the tape will completely float off the running guide and there will be no friction. Friction is reduced when buoyancy is small.
実施例
以下本発明の一実施例のテープについて添付図面を参照
しながら説明する。EXAMPLE Hereinafter, a tape according to an example of the present invention will be described with reference to the accompanying drawings.
第１図は本発明を磁気記録に応用したテープの斜視断面
図である０図において、１０は超電導体の粉体を含むバ
ックコート層、１１はヘースフィルム、１２は磁性層で
ある。第２図は第１図のテープを、磁束を発生する走行
ガイドから構成される走行系の斜視図である。第２図に
おいて、ｌはチー フ、２は磁気ヘッド、３はピンチロ
ーラ、４はキャブスタンス、５が磁束を発生する走行ガ
イドであり、ＶＴＲにおいては一般に傾斜ポストと呼ば
れている。FIG. 1 is a perspective sectional view of a tape in which the present invention is applied to magnetic recording. In FIG. 0, 10 is a back coat layer containing superconducting powder, 11 is a heath film, and 12 is a magnetic layer. FIG. 2 is a perspective view of a running system for the tape shown in FIG. 1, which is composed of a running guide that generates magnetic flux. In FIG. 2, 1 is a chief, 2 is a magnetic head, 3 is a pinch roller, 4 is a cab stance, and 5 is a running guide that generates magnetic flux, which is generally called an inclined post in a VTR.
尚、上記実施例中、超電導材料としては、例えば所謂常
温超電導体を用いるか、または超電導臨界温度が室温と
液体窒素の沸点の間の材料を用いて液体窒素で冷却する
か、もしくは超電導臨界温度が液体窒素の沸点以下の材
料を用いて液体ヘリウムで冷却するかすれば良い。常温
超電導体の一例としては、組成としてストロンチウム（
Ｓｒ）。In the above examples, as the superconducting material, for example, a so-called room-temperature superconductor is used, a material whose superconducting critical temperature is between room temperature and the boiling point of liquid nitrogen is used, and the superconducting material is cooled with liquid nitrogen, or the superconducting critical temperature is It is sufficient to use a material whose temperature is below the boiling point of liquid nitrogen and cool it with liquid helium. An example of a room-temperature superconductor is the composition of strontium (
Sr).
バリウム（Ｂａ）、 インドリウム（Ｙ）および銅（Ｃ
ｕ）をそれぞれ１：１：ｌ：３の比率で含有するセラミ
ック酸化物がある。その製法の一例としては、出発原料
としてＳｒＣＯ３，ＢａＣＯ３゜Ｙ２０ｇ ’、 Ｃ
ｕ Ｏのそれぞれの粉体を所定量混合し、粉砕し、空気
中において９２０℃で５時間焼成する。この焼成・粉砕
を３回繰り返し、均質性を高める。このようにして処理
した混合粉体を冷間圧縮成型した後、空気中において１
０００℃で５時間焼成し、徐冷することにより製造する
。Barium (Ba), Indolium (Y) and Copper (C
There are ceramic oxides containing u) in a ratio of 1:1:l:3, respectively. As an example of its manufacturing method, starting materials are SrCO3, BaCO3゜Y20g', C
A predetermined amount of each powder of u O is mixed, pulverized, and calcined in air at 920° C. for 5 hours. This firing and crushing process is repeated three times to improve homogeneity. After cold compression molding the mixed powder treated in this way, it was placed in air for 1
It is produced by firing at 000°C for 5 hours and slowly cooling.
第２図のテープ走行系で、テープは走行ガイドなどと摩
擦しながら走行するが、テープと走行ガイド間にはマイ
スナー効果により浮力が発生し、テープの摩擦は軽減さ
れる。In the tape running system shown in FIG. 2, the tape runs while rubbing against the running guide, but buoyancy is generated between the tape and the running guide due to the Meissner effect, and the friction of the tape is reduced.
走行ガイドは、テープに接触する面がＮ極かＳ極のいず
れかの磁極になる構成とした方が、マイスナー効果は有
効に作用する。The Meissner effect works more effectively when the running guide has a configuration in which the surface that contacts the tape has either a north pole or a south pole.
本発明は磁気テープのみならず、光テープなどにも容易
に適用できることは言うまでもない。It goes without saying that the present invention can be easily applied not only to magnetic tapes but also to optical tapes.
発明の効果
以上述べたごとく本発明のテープは磁束を発生する走行
ガイドと組み合せて使用することにより、テープと走行
ガイド間の摩擦を軽減し、安定したテープ走行が得られ
るという効果がある。Effects of the Invention As described above, when the tape of the present invention is used in combination with a running guide that generates magnetic flux, the friction between the tape and the running guide is reduced and stable tape running is achieved.
第１図は本発明の一実施例におけるテープの斜視断面図
、第２図はテープ走行系の斜視図である。
１・・・・・・テープ、５・・・・・・走行ガイド（（
ＩＪＩ斜ポスト）、１０・・・・・・バックコートｌｉ
、１１・・・・・・ベースフィルム、１２・・・・・・
磁性層。
代理人の氏名 弁理士 中尾敏男 はか１名第２図FIG. 1 is a perspective sectional view of a tape in one embodiment of the present invention, and FIG. 2 is a perspective view of a tape running system. 1...Tape, 5...Traveling guide ((
IJI diagonal post), 10... Back coat li
, 11...Base film, 12...
magnetic layer. Name of agent: Patent attorney Toshio Nakao (1 person) Figure 2
Claims (4)
するテープ。(1) A tape characterized by being back coated with superconductor powder.
とを特徴とする特許請求の範囲第（１）項記載のテープ
。(2) The tape according to claim (1), which is used in combination with a running guide that generates magnetic flux.
イドのＮ極、Ｓ極いずれかの磁極があることを特徴とす
る特許請求の範囲第（２）項記載のテープ。(3) The tape according to claim (2), characterized in that there is a magnetic pole, either an N pole or an S pole, of a running guide that generates magnetic flux on the side that comes into contact with the tape.
求の範囲第（１）項記載のテープ。(4) The tape according to claim (1), characterized in that a magnetic layer is provided on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63013828A JPH01191320A (en) | 1988-01-25 | 1988-01-25 | Tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63013828A JPH01191320A (en) | 1988-01-25 | 1988-01-25 | Tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01191320A true JPH01191320A (en) | 1989-08-01 |
Family
ID=11844134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63013828A Pending JPH01191320A (en) | 1988-01-25 | 1988-01-25 | Tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01191320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10933576B2 (en) | 2017-01-26 | 2021-03-02 | Vmi Holland B.V. | Apparatus and method for applying a gum strip to an edge of a cord reinforced ply |
-
1988
- 1988-01-25 JP JP63013828A patent/JPH01191320A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10933576B2 (en) | 2017-01-26 | 2021-03-02 | Vmi Holland B.V. | Apparatus and method for applying a gum strip to an edge of a cord reinforced ply |
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