JPH0520843B2 - - Google Patents
Info
- Publication number
- JPH0520843B2 JPH0520843B2 JP61045766A JP4576686A JPH0520843B2 JP H0520843 B2 JPH0520843 B2 JP H0520843B2 JP 61045766 A JP61045766 A JP 61045766A JP 4576686 A JP4576686 A JP 4576686A JP H0520843 B2 JPH0520843 B2 JP H0520843B2
- Authority
- JP
- Japan
- Prior art keywords
- twist
- pitch
- twist pitch
- core
- cable
- 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
- 239000011295 pitch Substances 0.000 claims description 44
- 239000000835 fiber Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000000737 periodic effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、OA（オフイスオートメーシヨン）、
FA（フアクトリオートメーシヨン）機器間配線用
など、数ＭHz程度までの高周波の信号伝送用とし
て用いられる少対の平衡形ケーブルに関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to OA (office automation),
This relates to a small number of pairs of balanced cables used for high frequency signal transmission up to several MHz, such as for wiring between FA (factory automation) equipment.
上記のような用途には、通常、撚りピツチを長
さ方向に一定とした対またはカツドなどの心線群
をコアとするケーブルが用いられている。
For the above-mentioned applications, cables are usually used whose core is a group of wires, such as pairs or couples, with a constant twist pitch in the length direction.
このケーブルにおいて、同一の束（ドラム）か
ら引出して切断したケーブルを、複数本並行に密
接して布設すると、撚りピツチの等しい対又はカ
ツド等の心線群が接近して並ぶこととなり、隣接
するケーブルの同一のピツチの心線群の間に漏話
結合を生じ易い。 In this cable, if multiple cables pulled out and cut from the same bundle (drum) are laid close together in parallel, the core groups such as pairs or corners with equal twist pitch will be lined up closely, and the adjacent Crosstalk coupling is likely to occur between groups of wires of the same pitch in the cable.
また、特開昭50−122682号公報、実開昭48−
109479号公報等に示されるように、心線群を複数
組有し、その各心線群の撚りピツチをそれぞれ異
ならせて、各心線群間の漏話結合を低減したケー
ブルは周知である。 Also, Japanese Patent Application Laid-Open No. 1982-122682, Utility Model Application No. 1973-
As shown in Japanese Patent Application No. 109479, etc., a cable is well known which has a plurality of wire groups and each wire group has a different twist pitch to reduce crosstalk coupling between the wire groups.
しかし、この公報記載ゲーブルにおいても、同
一の束から引出して切断したケーブルを、複数本
並行に密接して布設すると、同一の撚りピツチの
心線群が接近して並ぶこととなり、その心線群間
でやはり漏話結合が生じる場合がある。 However, even in the cable described in this publication, if multiple cables pulled out and cut from the same bundle are laid closely in parallel, groups of core wires with the same twist pitch will be lined up closely, Crosstalk coupling may still occur between the two.
本発明は、以上の点に鑑み、同一の束から引出
して切断したケーブルを、その切断した両ケーブ
ル間での漏話結合の少ない並行密接した布設を容
易に行い得るようにすることを課題とする。 In view of the above points, it is an object of the present invention to make it possible to easily lay cables pulled out and cut from the same bundle in parallel and close together with less crosstalk coupling between the two cut cables. .
上記課題を解決するために、本発明にあつて
は、撚りピツチが長さ方向に変化し、かつその撚
りピツチの変化が所定の周期で繰り返された対も
しくはカツドなどの心線群または該心線群を複数
本集合して成る集合体をコアとして、その外周に
外被を設け、該外被上に前記所定の周期を示す周
期表示マークを付して成る構成としたのである。
In order to solve the above-mentioned problems, the present invention provides a group of cores such as a pair or a core in which the twist pitch changes in the length direction and the change in the twist pitch is repeated at a predetermined period. The structure is such that a core is an assembly of a plurality of wire groups, an outer sheath is provided around the outer periphery, and a periodicity display mark indicating the predetermined period is attached on the outer sheath.
上記集合体は、互いに異なる撚りピツチを有す
る複数本の心線群から成るものとすることができ
る。 The above-mentioned assembly may consist of a plurality of core groups having mutually different twist pitches.
このように構成する本発明に係るケーブルは、
コアを成す心線群の撚りピツチがその長さ方向に
変化し、その撚りピツチの変化が所定の周期で繰
り返されているため、同一の束から引出して切断
したケーブルを並行に密接して布設する際、周期
表示マークの位置をその布設方向にずらせば、隣
接するケーブルの心線群間の撚りピツチの変化の
位相が一致せず、心線群間が同一ピツチで並行す
る区間はほとんどなくなる。このため、漏話結合
は極力少なくなる。
The cable according to the present invention configured in this way is
The twist pitch of the core wire group changes in the length direction, and the change in twist pitch is repeated at a predetermined period, so cables drawn and cut from the same bundle can be laid closely in parallel. If you shift the position of the cycle indicator mark in the installation direction, the phases of twist pitch changes between adjacent cable groups will no longer match, and there will be almost no sections where the fiber groups are parallel at the same pitch. . Therefore, crosstalk coupling is minimized.
この原理を第３図にもとづいて説明する。第３
図ａは、変動周期長Ｌのうち、半周期長L1の間
に撚りピツチがPminからPmaxにほぼ直線的に
増加し、つぎの半周期長L2の間にPmaxから
Pminにほぼ直線的に減少する場合を示す。 This principle will be explained based on FIG. Third
Figure a shows that the twist pitch increases almost linearly from Pmin to Pmax during half cycle length L 1 of the fluctuating cycle length L, and increases from Pmax during the next half cycle length L 2 .
This shows the case where Pmin decreases almost linearly.
同図ｂは、撚りピツチの変動周期が同一のケー
ブルを同図ａのケーブルと同一位相となるように
平行に密接布設した場合を示す。また、同図ｃの
実線は同一ケーブルを位相を90度ずらせて布設し
た場合を示し、点線はこれと比較しやすいように
同図ａのケーブルの変動波形を重ね合わせたもの
である。 Figure b shows a case in which cables with the same twist pitch variation period are closely laid in parallel to the cables in figure a so that they are in the same phase. In addition, the solid line in Figure c shows the case where the same cable is laid with a phase shift of 90 degrees, and the dotted line is a superimposition of the fluctuating waveforms of the cable in Figure A for easy comparison.
同図ａのケーブルと同図ｂのケーブルとの間の
漏話の分布（漏話結合）Ｍ(x)は同図ｄのようにな
る。すなわち、最初の半周期長L1でも次の半周
期長L2でも同一撚り方向の同一ピツチで平行布
設されているため、それぞれに漏話1/2MLが生
じ、周期長全体では加算されてほぼMLとなる。 The distribution of crosstalk (crosstalk coupling) M(x) between the cable shown in figure a and the cable shown in figure b is as shown in figure d. In other words, since both the first half-period length L 1 and the next half-period length L 2 are laid in parallel at the same pitch in the same twist direction, crosstalk of 1/2 ML occurs in each, and the total period length is added up to almost ML. becomes.
一方、同図ａのケーブルと同図ｃの実線に示す
ケーブルとの間の漏話分布Ｍ(x)は同図ｅのように
なる。すなわち、撚りピツチＰ(x)が互いに等しく
なるのはＡ点とＢ点だけであつて、他のところで
は異なる。したがつて、漏話分布Ｍ(x)もＡ点、Ｂ
点でピークとなるが、その他のところでは小さい
値となる。 On the other hand, the crosstalk distribution M(x) between the cable shown in figure a and the cable shown by the solid line in figure c is as shown in figure e. That is, the twist pitches P(x) are equal only at points A and B, and are different at other points. Therefore, the crosstalk distribution M(x) also has points A and B
It reaches a peak at this point, but the value is small elsewhere.
また、本発明のケーブルは、外被上に撚りピツ
チの変動周期を示す周期表示マークを付してある
ので、ケーブルをどこで切り取つても、それを布
設する時には、位相をずらして布設することが容
易である。 Furthermore, since the cable of the present invention has a cycle indicator mark indicating the twist pitch variation cycle on the outer sheath, no matter where the cable is cut, it can be laid out of phase. It's easy.
以上は、撚りピツチが直接的に徐々に増加し、
徐々に減少する場合について説明したが、撚りピ
ツチの周期的な変化の態様はこれに限定されるも
のではない。 Above, the twist pitch increases directly and gradually,
Although the case where the twist pitch gradually decreases has been described, the manner in which the twist pitch changes periodically is not limited to this.
実施例 １
第１図ａは本発明の一実施例を示す説明図で、
１は導体、２は絶縁体、３は導体１上に絶縁体２
を被覆して成る心線、４は心線３を２本撚り合せ
て成る対、５は介在、６な押え巻きテープ、７は
金属しやへい層、８は外被、９は外被８に付した
周期表示マークである。Example 1 FIG. 1a is an explanatory diagram showing an example of the present invention.
1 is a conductor, 2 is an insulator, 3 is an insulator 2 on conductor 1
4 is a pair of two core wires 3 twisted together; 5 is an intervening wire; 6 is a pressing tape; 7 is a metal thin layer; 8 is a jacket; 9 is a jacket 8 This is the periodic display mark attached to the .
変動ピツチの種類は次の３種類とした。 The following three types of variable pitch were used.
タイプＡ：一方向撚りとし、第３図に示すよう
に撚りピツチＰ(x)を最小値Pminと最大値Pmax
との間でほぼ直線的に増加、減少させたもの。 Type A: Unidirectional twist, and the twist pitch P(x) is set to the minimum value Pmin and maximum value Pmax as shown in Figure 3.
Increases and decreases almost linearly between.
タイプＢ：一方向撚りとし、第４図に示すよう
に撚りピツチPxを最小値Pmin最大値Pmaxとの
間で段階的Ｎに加させ、Pmaxに達した後、再び
PminからPmaxまで同様に増加させたもの。 Type B: Unidirectional twist, as shown in Figure 4, the twist pitch Px is added to N in stages between the minimum value Pmin and the maximum value Pmax, and after reaching Pmax, the twist pitch is increased again.
Similarly increased from Pmin to Pmax.
タイプＣ：SZ撚りとし、第５図に示すように
撚り度Ｆ(x)（撚りピツチＰ(x)の逆数）がゼロから
Ｆへ、Ｆからゼロへと変化し、次いでゼロから−
Ｆへ、−Ｆからゼロへと変化するもの。 Type C: SZ twist, as shown in Figure 5, twist degree F(x) (reciprocal of twist pitch P(x)) changes from zero to F, from F to zero, then from zero to -
Something that changes from -F to zero.
いずれも位相をずれせて布設することにより良
好な結果が得られた。 In both cases, good results were obtained by laying the cables out of phase.
周期表示マーク９はタイプＡ、タイプＢの場合
は、最初のPminの点を始点とし、各周期の始点
ごとに外被の色（黒）と異なる色（白）のリング
マークを付して示した。タイプＣの場合は、Ｆ(x)
＝０でF′(x)＞０の点を始点とし、半周期ごとにリ
ングマークを付した。ただし、位相がゼロの点
と、180度の点を区別するため、リングマークの
色をかえて表示した。なお、上記のように各周期
の始点や半周期の点だけでなく、たとえば１ｍご
との長さの表示を別の色を用いて行えば、布設の
上でも、使用条長の管理の上からも、いつそう便
利である。 In the case of type A and type B, the cycle display mark 9 is indicated with the first Pmin point as the starting point, and a ring mark of a color (white) different from the outer jacket color (black) is attached at each cycle start point. Ta. For type C, F(x)
= 0 and the point where F'(x) > 0 was taken as the starting point, and a ring mark was attached every half period. However, in order to distinguish between the point where the phase is zero and the point where the phase is 180 degrees, the color of the ring mark was changed. In addition, if you use a different color to display not only the starting point of each cycle or the half-cycle point, but also the length of each meter, for example, it will be easier to manage the length of the cables used during installation. Even when it's so convenient.
実施例 ２
第２図は本発明の別の実施例を示す説明図であ
る。実施例１と同様に周期的変動する撚りピツチ
で撚り合せ、テープ等で押え巻きして対４を形成
し、これを複数本介在５（必要に応じて設ける）
と共に撚り合せて成る集合体１０を押え巻きテー
プ６で押え巻きし、その上に外被８設け、その外
被上に前記複数本の対の撚りピツチの変動周期を
示す周期表示マーク９ａ，９ｂを付してある。Embodiment 2 FIG. 2 is an explanatory diagram showing another embodiment of the present invention. As in Example 1, the strands are twisted together with a twisting pitch that changes periodically, and pressed and wrapped with tape or the like to form a pair 4, which is interposed in plurality 5 (provided as necessary).
The assembly 10 formed by twisting together is wrapped with a pressing tape 6, and an outer sheath 8 is provided thereon, and periodic display marks 9a, 9b are provided on the outer sheath to indicate the fluctuation cycle of the twist pitch of the plurality of pairs. is attached.
集合体１０を構成する各対は、タイプＡのもの
で、第７図に示すように、周期長Ｌが等しく、撚
りピツチの最小値Pminおよび最大値Pmaxがそ
れぞれ異なる６種類の変動ピツチP1，P2，P3…
…P6を有するものとし、各対の撚りピツチの変
動の位相は一致するように撚り合せたものとすれ
ば、外被上の周期表示マークは第１図ｂのように
一種類でよいので作業が簡単であり、隣接ケーブ
ルの心線群間の周期を一致しないようにするのが
容易である。 Each pair constituting the aggregate 10 is of type A, and as shown in FIG. 7, six types of fluctuating pitches P 1 with the same period length L and different minimum value Pmin and maximum value Pmax of the twist pitch, respectively. , P2 , P3 ...
...P 6 , and the twists are made so that the phases of the twist pitch fluctuations of each pair are the same, then only one type of periodic mark on the jacket is sufficient as shown in Figure 1b. The work is simple, and it is easy to prevent the periods between the core groups of adjacent cables from matching.
この実施例は、集合体１０を成す対間は、各対
４の撚りピツチがP1，P2……とそれぞれ異なる
ため、互いに撚りピツチが等しい個所はなく、漏
話結合は低減されている。また、この実施例のケ
ーブルを同一の束から引出して切断して平行に密
接布設する場合には、周期表示マーク９ａ，９ｂ
によつて撚りピツチの変動位相をずらせば、ケー
ブル間において、その対４間の撚りピツチが同一
で並行する区間はほとんどなく、漏話結合は低減
される。 In this embodiment, the twist pitch of each pair 4 is different from P 1 , P 2 . In addition, when the cables of this embodiment are pulled out from the same bundle, cut, and laid closely in parallel, periodic display marks 9a, 9b
By shifting the phase of the twist pitch fluctuations, there are almost no sections between the cables in which the twist pitches of pairs 4 are the same and parallel, and crosstalk coupling is reduced.
なお、上記ように同じタイプの変動ピツチの組
合せでなく、異なるタイプの変動ピツチを有する
心線群を組合せて集合対を形成したものも可能で
ある。たとえば第６図に示すように周期長の等し
いタイプＡのものとタイプＢのものとを組合せれ
ば周期が一致していても、同一ピツチ区間が並行
する危険性が軽減される。 In addition, instead of combining the same type of fluctuating pitch as described above, it is also possible to form a set pair by combining core groups having different types of fluctuating pitch. For example, as shown in FIG. 6, if type A and type B types with the same period length are combined, even if the periods match, the risk of the same pitch sections being parallel will be reduced.
また、以上の実施例では心線群が対のものにつ
いて述べたが、星型カツド、DMカツド、カツド
ペアなどを単位とするものも当然本発明に含まれ
る。 Furthermore, although the above embodiments have been described with respect to pairs of core wires, the present invention also includes those in which the core group is a star-shaped cut, a DM cut, a cut pair, etc. as a unit.
変動させたり撚りピツチを有する心線群を製造
する方法としては、回転変化法や線速変化法等公
知の技術を組合せた適切な方法を選択されば良
い。 As a method for producing a group of core wires having a varying twist pitch, an appropriate method combining known techniques such as a rotation variation method and a linear velocity variation method may be selected.
本発明によれば、以上のように構成したので、
同一の束から引出して切断したケーブルであつて
も、その周期表示マークでもつて、容易に、撚り
ピツチの変動位相をずらして布設することができ
る。このため、その切断したケーブルでもつて、
並行に密接して布設しても、漏話結合を極力抑え
たものとすることができる。
According to the present invention, as configured as above,
Even if the cables are pulled out and cut from the same bundle, they can be easily laid with their periodicity display marks shifting the twist pitch fluctuation phase. Therefore, even if the cut cable is
Even if they are laid closely in parallel, crosstalk coupling can be suppressed as much as possible.
第１図、第２図は本発明の実施例の説明図、第
３図乃至第７図は本発明の実施例の変動ピツチの
態様を示す説明図である。
１……導体、２……絶縁体、３……心線、４…
…対、８……外被、９……周期表示マーク。
FIGS. 1 and 2 are explanatory diagrams of an embodiment of the present invention, and FIGS. 3 to 7 are explanatory diagrams showing aspects of variable pitch in the embodiment of the present invention. 1... Conductor, 2... Insulator, 3... Core wire, 4...
...Pair, 8...Outer cover, 9...Periodic display mark.
Claims (1)
りピツチの変化が所定の周期Ｌで繰り返された対
もしくはカツドなどの心線群または該心線群を複
数本集合して成る集合体をコアとして、その外周
に外被８を設け、該外被８上に前記所定の周期Ｌ
を示す周期表示マーク９を付して成ることを特徴
とする変動ピツチケーブル。 ２ 上記集合体が、互いに異なる撚りピツチを有
する複数本の心線群から成ることを特徴とする特
許請求の範囲第１項記載の変動ピツチケーブル。[Scope of Claims] 1. A fiber group such as a pair or a joint in which the twist pitch changes in the length direction and the change in twist pitch is repeated at a predetermined period L, or a plurality of such fiber groups are assembled. An outer sheath 8 is provided around the outer periphery of the core, and the predetermined period L is formed on the outer sheath 8.
A variable pitch cable characterized in that it is provided with a periodicity display mark 9 indicating the periodicity. 2. The variable pitch cable according to claim 1, wherein the aggregate is comprised of a plurality of core wire groups having mutually different twist pitches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4576686A JPS62202417A (en) | 1986-02-28 | 1986-02-28 | Variable pitch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4576686A JPS62202417A (en) | 1986-02-28 | 1986-02-28 | Variable pitch cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62202417A JPS62202417A (en) | 1987-09-07 |
| JPH0520843B2 true JPH0520843B2 (en) | 1993-03-22 |
Family
ID=12728410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4576686A Granted JPS62202417A (en) | 1986-02-28 | 1986-02-28 | Variable pitch cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62202417A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2706520B2 (en) * | 1989-07-26 | 1998-01-28 | 八木アンテナ株式会社 | coaxial cable |
| US7214884B2 (en) * | 2003-10-31 | 2007-05-08 | Adc Incorporated | Cable with offset filler |
| US7345243B2 (en) | 2004-12-17 | 2008-03-18 | Panduit Corp. | Communication cable with variable lay length |
| US8347533B2 (en) | 2007-10-11 | 2013-01-08 | Southwire Company | Machine applied labels to armored cable |
| DE102012204554A1 (en) * | 2012-03-21 | 2013-09-26 | Leoni Kabel Holding Gmbh | Signal cable and method for high-frequency signal transmission |
| US11031157B1 (en) | 2013-08-23 | 2021-06-08 | Southwire Company, Llc | System and method of printing indicia onto armored cable |
| DE102014000897A1 (en) * | 2014-01-23 | 2015-07-23 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | cable assembly |
| NL2018988B1 (en) * | 2017-05-29 | 2018-12-07 | Use System Eng Holding B V | Twisted pair cable and CEDD system comprising such a cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50122682A (en) * | 1974-03-15 | 1975-09-26 | ||
| JPS5214981B2 (en) * | 1972-05-16 | 1977-04-26 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48109479U (en) * | 1972-03-22 | 1973-12-17 | ||
| JPS5214981U (en) * | 1975-07-21 | 1977-02-02 |
-
1986
- 1986-02-28 JP JP4576686A patent/JPS62202417A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5214981B2 (en) * | 1972-05-16 | 1977-04-26 | ||
| JPS50122682A (en) * | 1974-03-15 | 1975-09-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62202417A (en) | 1987-09-07 |
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