JP2004362907A - Interposer for utp cable and utp cable - Google Patents

Interposer for utp cable and utp cable Download PDF

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Publication number
JP2004362907A
JP2004362907A JP2003158919A JP2003158919A JP2004362907A JP 2004362907 A JP2004362907 A JP 2004362907A JP 2003158919 A JP2003158919 A JP 2003158919A JP 2003158919 A JP2003158919 A JP 2003158919A JP 2004362907 A JP2004362907 A JP 2004362907A
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JP
Japan
Prior art keywords
utp cable
cable
interposition
utp
substantially central
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.)
Abandoned
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JP2003158919A
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Japanese (ja)
Inventor
Hideo Kasahara
英男 笠原
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Yazaki Corp
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Yazaki Corp
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Filing date
Publication date
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Priority to JP2003158919A priority Critical patent/JP2004362907A/en
Publication of JP2004362907A publication Critical patent/JP2004362907A/en
Abandoned legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/04Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk

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  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interposer for a UTP cable for preventing a twist of a cable in manufacture of the same to facilitate the fixing of paired twisted wire cores to a partition wall part, and for enhancing flexibility, and to provide a UTP cable in which the interposer is inserted. <P>SOLUTION: The interposer 1 is inserted over the whole length of the cable into between the paired twisted wire cores 6 of the UTP cable 5 formed by covering a plurality of paired twisted wire cores 6 in a lump, and separates the distance between each paired twisted wire cores 6 in a certain level or more with a plurality of partition walls extending from almost the central part toward the centrifugal direction, and an fibrous linear material 4 is installed over the whole length of the cable in the length direction in almost the central part 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、電気的特性を向上させるために、UTP(Unshielded Twist−Pair:非シールド対撚り線)ケーブルの対撚り線心間に挿入されるUTPケーブル用介在及びUTPケーブルに関する。
【0002】
【従来の技術】
LAN(Local Area Network)の配線には、米国電子工業会/米国通信工業会(EIA/TIA)−568Aで規格された、対間にシールドを介在させないUTPケーブルが用いられている。
【0003】
かかるUTPケーブルは、導体の上にポリエチレンなどの絶縁体を被覆した絶縁線心を2本撚り合わせて形成された複数本の対撚り線心の上に外被を被覆して構成されている。
【0004】
このような構成を有するUTPケーブルは、複数種に分類されているが、このうち、超高速LANに対応するカテゴリー6ケーブルにおいて、対間の近端漏話特性、特性インピーダンス、反射減衰量特性を向上させるため、対撚り線心間に介在を挿入したUTPケーブルが知られている(例えば、特許文献1参照。)。かかる介在を挿入したUTPケーブルの一例を図7に示す。
【0005】
図に示したUTPケーブル20は、導体21の上に絶縁体22を被覆した絶縁線心23を2本撚り合わせて形成された4本の対撚り線心24間に、断面十字形の介在25を挿入し、その上に外被26を被覆することにより構成されている。
【0006】
かかるUTPケーブル20においては、介在25の隔壁部27によって各対撚り線心24間の距離が一定以上に離隔されるので対間の近端漏話特性が向上する。また、隔壁部27の間に対撚り線心24が入り、その位置が固定されるため、特性インピーダンスや反射減衰量特性が向上する。
【0007】
【特許文献1】
特開平11−53958号公報(第2−3頁、第1図乃至第3図)
【0008】
【発明が解決しようとする課題】
しかしながら、このように対撚り線心間に介在を挿入したUTPケーブルにおいては、対間の近端漏話特性、特性インピーダンス、反射減衰量特性が向上するものの、対撚り線心間に介在を挿入してその上に外被を被覆してケーブルを製造する際に、介在が略中心部を軸として捻れて対撚り線心が隔壁部の間から外れてしまうおそれがある。また、このような介在を有するケーブルは、可撓性が低下するおそれもある。
【0009】
本発明の目的は、ケーブル製造時における捻れを防止して対撚り線心を隔壁部の間に固定し易くさせるとともに、柔軟性を向上させたUTPケーブル用介在及び該介在を挿入したUTPケーブルを提供することにある。
【0010】
【課題を解決するための手段】
上記目的を達成するために、請求項1に記載の発明は、複数本の対撚り線心をまとめて外被で被覆して構成したUTPケーブルの前記対撚り線心間に、ケーブル全長に渡って挿入され、略中心部から遠心方向に向かって延びて形成される複数の隔壁部によって前記各対撚り線心間の距離を一定以上に離隔するUTPケーブル用介在であって、前記略中心部に、繊維質の線状体をケーブル全長に渡って長手方向に設けたことを特徴とする。
【0011】
かかる構成により、ケーブル製造時にUTPケーブル用介在が略中心部を軸として捻れると、これに伴い、UTPケーブル用介在の略中心部に設けた繊維質の線状体も捻れを起こす。しかし、捻れた繊維質の線状体には、元に戻ろうとする復元力が働く。このような復元力により、いったん捻れた繊維質の線状体が元に戻ると、これに伴い、UTPケーブル用介在の捻れも元に戻る。すなわち、UTPケーブル用介在の略中心部に設けた繊維質の線状体の捻れが復元力によって元に戻ると、これに伴い、略中心部にかかる線状体を設けたUTPケーブル用介在の略中心部を軸とする捻れも元に戻る。これにより、対撚り線心をUTPケーブル用介在の隔壁部の間に固定し易くなる。さらに、前記線状体の材質は繊維質であり柔軟性に優れているので、これをUTPケーブル用介在の略中心部に設けることにより、UTPケーブル用介在の柔軟性が向上する。したがって、このようなUTPケーブル用介在を挿入したUTPケーブルは、前記線状体を有しない介在を挿入したUTPケーブルに比べてその可撓性が向上する。
【0012】
請求項2に記載の発明は、請求項1に記載の前記略中心部を肉厚に形成したことを特徴とする。
【0013】
かかる構成により、略中心部が肉厚に形成されたUTPケーブル用介在は、ケーブル製造時にさらに捻れにくくなる。また、UTPケーブル用介在は、略中心部を肉厚に形成しても該略中心部に繊維質の線状体を設けているので柔軟性が向上し、かかるUTPケーブル用介在を挿入したUTPケーブルは、前記線状体を有しない介在を挿入したUTPケーブルに比べて可撓性が向上する。
【0014】
請求項3に記載の発明は、請求項1又は2に記載の前記隔壁部の先端部を肉厚に形成したことを特徴とする。
【0015】
かかる構成により、略中心部に繊維質の線状体を設けて対撚り線心を隔壁部の間に固定し易くしたUTPケーブル用介在の隔壁部の先端部を肉厚に形成したので、さらに対撚り線心を隔壁部の間に固定し易くなる。
【0016】
請求項4に記載の発明は、複数本の対撚り線心を有し、略中心部から遠心方向に向かって延びて形成される複数の隔壁部によって前記各対撚り線心間の距離を一定以上に離隔するUTPケーブル用介在を、前記複数本の対撚り線心間にケーブル全長に渡って挿入した上に、外被を被覆して構成したUTPケーブルであって、前記UTPケーブル用介在の前記略中心部には、繊維質の線状体をケーブル全長に渡って長手方向に設けたことを特徴とする。
【0017】
かかる構成により、対撚り線心をUTPケーブル用介在の隔壁部の間に固定し易く、また、前記線状体を有しない介在を挿入したUTPケーブルに比べて可撓性が向上したUTPケーブルとなる。
【0018】
請求項5に記載の発明は、請求項4に記載の前記UTPケーブル用介在の略中心部を肉厚に形成したことを特徴とする。
【0019】
かかる構成により、複数本の対撚り線心間に挿入されるUTPケーブル用介在がさらに捻れにくくなったUTPケーブルとなる。また、UTPケーブル用介在の略中心部を肉厚に形成しても、該略中心部には繊維質の線状体を設けているので、UTPケーブル用介在の柔軟性が向上し、かかるUTPケーブル用介在を挿入したUTPケーブルは、前記線状体を有しない介在を挿入したUTPケーブルに比べて可撓性が向上する。
【0020】
請求項6に記載の発明は、請求項4又は5に記載の前記UTPケーブル用介在の隔壁部の先端を肉厚に形成したことを特徴とする。
【0021】
かかる構成により、略中心部に繊維質の線状体を設けて対撚り線心を隔壁部の間に固定し易くしたUTPケーブル用介在の隔壁部の先端部を肉厚に形成したので、対撚り線心を隔壁部の間にさらに固定し易くしたUTPケーブルとなる。
【0022】
【発明の実施の形態】
以下、本発明に係るUTPケーブル用介在の実施の形態の第1例について説明する。
図1は、本例のUTPケーブル用介在の断面図である。
【0023】
図において、1は複数本の対撚り線心をまとめて外被で被覆して構成される後述のUTPケーブルの前記対撚り線心間に、ケーブル全長に渡って挿入されるUTPケーブル用介在である。
【0024】
このUTPケーブル用介在1は、例えばポリエチレンやポリ塩化ビニル等の樹脂で成形され、略中心部2から遠心方向に向かって延びて形成される隔壁部3を複数有している。本例では隔壁部3は4つ形成されており、UTPケーブル用介在1は、その断面が十字形となっている。
【0025】
このようなUTPケーブル用介在1の前記略中心部2には、線状体4がケーブル全長に渡って長手方向に設けられている。線状体4は繊維質となっており、例えばテトロン、ナイロン、綿等で、可撓性及び柔軟性に優れている。かかる線状体4は、略中心部2においてUTPケーブル用介在1と一体に設けられている。このように線状体4をUTPケーブル用介在1の略中心部2にUTPケーブル用介在1と一体に設ける方法としては、例えば、線状体4の周りに、UTPケーブル用介在1を形成する樹脂等を押し出して成形する方法が考えられる。
【0026】
図2に、このようなUTPケーブル用介在1を挿入したUTPケーブルの一例を示す。
図に示したUTPケーブル5は、4本の対撚り線心6とUTPケーブル用介在1と外被7とを有して構成されている。
【0027】
前記対撚り線心6は導体8の上に絶縁体9を被覆して形成される絶縁線心10を2本撚り合わせて形成されている。そして、このようにして形成される4本の対撚り線心6間に、UTPケーブル用介在1をケーブル全長に渡って挿入し、その上に外被7を被覆してUTPケーブル5が構成されている。
【0028】
これにより、各対撚り線心6がUTPケーブル用介在1の隔壁部3の間に入って固定され、隔壁部3によって各対撚り線心6間の距離が一定以上に離隔されている。
【0029】
前記のようなUTPケーブル用介在1及びかかるUTPケーブル用介在1が挿入されたUTPケーブルにおいては、対撚り線心6間にUTPケーブル用介在1を挿入してその上に外被7を被覆してケーブルを製造する際に、UTPケーブル用介在1が捻れると、これに伴い、UTPケーブル用介在1の略中心部2に設けた繊維質の線状体4も捻れを起こす。しかし、捻れた繊維質の線状体4には、元に戻ろうとする復元力が働く。この復元力は、線状体4の材質が繊維質であることから、樹脂で成形されているUTPケーブル用介在1の復元力よりも強いものである。そして、このような復元力により、いったん捻れた繊維質の線状体4が元に戻ると、これに伴い、略中心部2にかかる線状体4を一体に設けたUTPケーブル用介在1の略中心部2を軸とする捻れも元に戻る。したがって、対撚り線心6をUTPケーブル用介在1の隔壁部3の間に固定し易い。さらに、かかる線状体4の材質は繊維質であり柔軟性に優れているので、これをUTPケーブル用介在1の略中心部2に設けることにより、UTPケーブル用介在1の柔軟性が向上する。したがって、このようなUTPケーブル用介在1を挿入したUTPケーブル5は、前記線状体を有しない介在を挿入したUTPケーブルに比べてその可撓性が向上する。
【0030】
次に本発明に係るUTPケーブル用介在の実施の形態の第2例について説明する。
図3は、本例のUTPケーブル用介在の断面図である。
【0031】
図に示した本例のUTPケーブル用介在11は、その略中心部2が肉厚に形成されており、隔壁部3の根本が肉厚となっていて曲面が形成されている。そして、このように肉厚に形成された略中心部2に前記繊維質の線状体4がケーブル全長に渡って長手方向に設けられている。その他の構成については上記実施の形態の第1例と同様である。
【0032】
図4にこのようなUTPケーブル用介在11を挿入したUTPケーブルの一例を示す。
図に示したUTPケーブル12は、略中心部2が肉厚に形成されている前記UTPケーブル用介在11を対撚り線心6間に挿入し、その上に外被7を被覆して構成されている。隔壁部3の間の対撚り線心6は、隔壁部3の根本に形成された曲面により隔壁部3の間に安定して固定されている。その他の構成は、図2に示したUTPケーブル5と同様の構成となっており、対応する部分には同一の符号を付けて示している。
【0033】
上記したようなUTPケーブル用介在11によれば、略中心部2が肉厚に形成されているので、ケーブル製造時にさらに捻れにくくなる。また、UTPケーブル用介在11は、略中心部2を肉厚としても該略中心部2に繊維質の線状体4を設けたので柔軟性が向上し、かかるUTPケーブル用介在11を挿入したUTPケーブル12は、前記線状体4を有しない介在を挿入したUTPケーブルに比べて可撓性が向上する。
【0034】
次に本発明に係るUTPケーブル用介在の実施の形態の第3例について説明する。
図5は、本例のUTPケーブル用介在の断面図である。
【0035】
図に示した本例のUTPケーブル用介在13は、隔壁部3の先端部14が肉厚に形成されている。これにより、隔壁部3の先端部14には曲面が形成されている。その他の構成については上記実施の形態の第1例と同様である。
【0036】
図6にこのようなUTPケーブル用介在13を挿入したUTPケーブルの一例を示す。
図に示したUTPケーブル15は、先端部14が肉厚に形成されている前記UTPケーブル用介在13を対撚り線心6間に挿入し、その上に外被7を被覆して構成されている。隔壁部3の間の対撚り線心6は、隔壁部3の先端部14が肉厚に形成され曲面が形成されているので隔壁部3の間に安定して固定されている。その他の構成は、図2に示したUTPケーブル5と同様の構成となっており、対応する部分には同一の符号を付けて示している。
【0037】
前記のようなUTPケーブル用介在13及びこのUTPケーブル用介在を挿入したUTPケーブル15によれば、略中心部2に繊維質の線状体4を設けて捻れにくくすることにより対撚り線心6を隔壁部3の間に固定し易くしたUTPケーブル用介在13の隔壁部3の先端部14が肉厚となっているので、さらに対撚り線心6を隔壁部3の間に固定し易くなる。
【0038】
【発明の効果】
以上説明したように請求項1に係る発明によれば、ケーブル製造時にUTPケーブル用介在が略中心部を軸として捻れても、略中心部に設けた繊維質の線状体により、UTPケーブル用介在の捻れが元に戻るので、対撚り線心をUTPケーブル用介在の隔壁部の間に固定し易くなる。さらに、UTPケーブル用介在の柔軟性が向上するので、このようなUTPケーブル用介在を挿入したUTPケーブルは、前記線状体を有しない介在を挿入したUTPケーブルに比べてその可撓性が向上する。
【0039】
請求項2に記載の発明によれば、ケーブル製造時にUTPケーブル用介在がさらに捻れにくくなるとともに柔軟性が向上し、かかるUTPケーブル用介在を挿入したUTPケーブルは、前記線状体を有しない介在を挿入したUTPケーブルに比べて可撓性が向上する。
【0040】
請求項3に記載の発明によれば、さらに対撚り線心を隔壁部の間に固定し易くなる。
【0041】
請求項4に記載の発明によれば、対撚り線心をUTPケーブル用介在の隔壁部の間に固定し易く、また、前記線状体を有しない介在を挿入したUTPケーブルに比べて可撓性が向上したUTPケーブルとなる。
【0042】
請求項5に記載の発明によれば、複数本の対撚り線心間に挿入されるUTPケーブル用介在がさらに捻れにくくなったUTPケーブルとなる。また、UTPケーブル用介在の柔軟性が向上し、かかるUTPケーブル用介在を挿入したUTPケーブルは、前記線状体を有しない介在を挿入したUTPケーブルに比べて可撓性が向上する。
【0043】
請求項6に記載の発明によれば、対撚り線心を隔壁部の間にさらに固定し易くしたUTPケーブルとなる。
【図面の簡単な説明】
【図1】本発明に係るUTPケーブル用介在の実施の形態の第1例を示す断面図。
【図2】図1に示すUTPケーブル用介在を挿入したUTPケーブルを示す断面図。
【図3】本発明に係るUTPケーブル用介在の実施の形態の第2例を示す断面図。
【図4】図3に示すUTPケーブル用介在を挿入したUTPケーブルを示す断面図。
【図5】本発明に係るUTPケーブル用介在の実施の形態の第3例を示す断面図。
【図6】図5に示すUTPケーブル用介在を挿入したUTPケーブルを示す断面図。
【図7】従来のUTPケーブル用介在を挿入したUTPケーブルを示す断面図。
【符号の説明】
1,11,13 UTPケーブル用介在
2 略中心部
3 隔壁部
4 線状体
5,12,15 UTPケーブル
6 対撚り線心
7 外被
14 先端部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a UTP (Unshielded Twist-Pair) cable and a UTP cable interposition inserted between a pair of twisted cores of a UTP (Unshielded Twist-Pair) cable in order to improve electrical characteristics.
[0002]
[Prior art]
For the wiring of the LAN (Local Area Network), a UTP cable which is standardized by the Electronic Industries Association of the United States and the Telecommunications Industry Association of the United States (EIA / TIA) -568A and has no shield interposed between pairs is used.
[0003]
Such a UTP cable is configured by covering an outer jacket on a plurality of twisted pair cores formed by twisting two insulated cores each of which is covered with an insulator such as polyethylene on a conductor.
[0004]
The UTP cables having such a configuration are classified into a plurality of types. Among them, in the category 6 cable corresponding to the ultra-high-speed LAN, the near-end crosstalk characteristic, characteristic impedance, and return loss characteristic between pairs are improved. For this purpose, a UTP cable in which an interposition is inserted between the twisted pair cores is known (for example, see Patent Document 1). FIG. 7 shows an example of a UTP cable into which such an intervention is inserted.
[0005]
The UTP cable 20 shown in the figure has a cross-shaped cross section 25 between four paired twisted cores 24 formed by twisting two insulated cores 23 each having an insulator 22 coated on a conductor 21. Is inserted, and a jacket 26 is coated thereon.
[0006]
In such a UTP cable 20, the distance between the twisted pair cores 24 is separated by a certain distance or more by the partition wall portion 27 of the interposition 25, so that the near-end crosstalk between the pairs is improved. Further, since the twisted pair core 24 enters between the partition walls 27 and the position thereof is fixed, the characteristic impedance and the return loss characteristic are improved.
[0007]
[Patent Document 1]
JP-A-11-53958 (pages 2-3, FIGS. 1 to 3)
[0008]
[Problems to be solved by the invention]
However, in the UTP cable in which the interposition is inserted between the twisted pair cores, the near-end crosstalk characteristic, the characteristic impedance, and the return loss characteristic between the pair are improved, but the interposition is inserted between the paired twisted cores. When a cable is manufactured by coating a jacket on the wire, there is a possibility that the interposition is twisted about the substantially central portion and the twisted pair core comes off from between the partition walls. Further, the cable having such an interposition may have a reduced flexibility.
[0009]
SUMMARY OF THE INVENTION An object of the present invention is to provide a UTP cable interposer having improved flexibility while preventing twisting at the time of cable production and facilitating fixing of a twisted pair core between partition walls. To provide.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 provides a UTP cable comprising a plurality of twisted pair cores which are collectively covered with a jacket, between the paired twisted cores over the entire length of the cable. A UTP cable interposition wherein the distance between the respective twisted pair cores is separated by a predetermined distance or more by a plurality of partition portions formed to extend in the centrifugal direction from the substantially central portion. Further, a fibrous linear body is provided in the longitudinal direction over the entire length of the cable.
[0011]
With such a configuration, when the UTP cable intervention is twisted around the substantially central portion at the time of manufacturing the cable, the fibrous linear body provided substantially at the center portion of the UTP cable intervention is also twisted. However, the twisted fibrous linear body has a restoring force to return to its original state. Once the twisted fibrous linear body returns to the original state due to such a restoring force, the twist of the UTP cable interposition also returns to the original state. That is, when the torsion of the fibrous linear body provided substantially in the center of the UTP cable intervention returns to the original state by the restoring force, the UTP cable intervention provided with the substantially linear centered body is accompanied by this. Twisting about the center is also restored. This makes it easier to fix the twisted pair core between the partition walls of the UTP cable. Further, since the material of the linear body is fibrous and excellent in flexibility, by providing this at substantially the center of the UTP cable intervention, the flexibility of the UTP cable intervention is improved. Therefore, the flexibility of the UTP cable into which the UTP cable interposition is inserted is improved as compared with the UTP cable into which the interposition having no linear body is inserted.
[0012]
The invention described in claim 2 is characterized in that the substantially central portion described in claim 1 is formed thick.
[0013]
With such a configuration, the UTP cable interposition in which the substantially central portion is formed to be thicker becomes less likely to be twisted at the time of manufacturing the cable. In addition, the UTP cable interposition has improved flexibility since the fibrous linear body is provided at the substantially center even if the center is formed to be thicker. The flexibility of the cable is improved as compared with the UTP cable in which the interposition having no linear body is inserted.
[0014]
A third aspect of the present invention is characterized in that the tip of the partition wall according to the first or second aspect is formed thick.
[0015]
With such a configuration, the end portion of the partition wall portion of the UTP cable intervening which is provided with the fibrous linear body at the substantially central portion to easily fix the twisted pair core between the partition wall portions is formed to be thicker. The twisted pair core is easily fixed between the partition walls.
[0016]
The invention according to claim 4 has a plurality of twisted pair cores, and the distance between the paired twisted cores is constant by a plurality of partition portions formed extending from a substantially central portion in a centrifugal direction. A UTP cable in which the UTP cable intervening separated as described above is inserted over the entire length of the cable between the plurality of twisted pair cores, and further covered with a jacket. A fibrous linear body is provided in the substantially central portion in the longitudinal direction over the entire length of the cable.
[0017]
According to such a configuration, the twisted pair core can be easily fixed between the partition portions of the UTP cable interposition, and the UTP cable has improved flexibility as compared with the UTP cable in which the interposition having no linear body is inserted. Become.
[0018]
According to a fifth aspect of the present invention, a substantially central portion of the UTP cable interposition according to the fourth aspect is formed to be thick.
[0019]
With this configuration, a UTP cable in which the interposition of the UTP cable inserted between a plurality of twisted pair cores is further less likely to be twisted. Further, even when the substantially central portion of the UTP cable intervention is formed to be thick, a fibrous linear body is provided at the substantially central portion, so that the flexibility of the UTP cable intervention is improved, and the UTP cable intervention is improved. The flexibility of the UTP cable in which the cable interposition is inserted is improved as compared with the UTP cable in which the interposition having no linear body is inserted.
[0020]
The invention according to claim 6 is characterized in that the tip of the partition wall portion of the UTP cable interposition according to claim 4 or 5 is formed to be thick.
[0021]
With such a configuration, the end portion of the partition wall portion of the UTP cable interposition in which a fibrous linear body is provided substantially in the center and the twisted pair core is easily fixed between the partition wall portions is formed thick. The UTP cable has a stranded core that is more easily fixed between the partition walls.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first example of the embodiment of the UTP cable interposition according to the present invention will be described.
FIG. 1 is a sectional view of a UTP cable interposition according to the present embodiment.
[0023]
In the drawing, reference numeral 1 denotes a UTP cable interposition inserted between the paired twisted cores of a UTP cable, which will be described later, which is formed by covering a plurality of twisted paired cores together with a jacket and extending over the entire length of the cable. is there.
[0024]
The UTP cable interposition 1 is formed of, for example, a resin such as polyethylene or polyvinyl chloride, and has a plurality of partition portions 3 extending from the substantially central portion 2 in the centrifugal direction. In this example, four partition portions 3 are formed, and the cross section of the UTP cable intervention 1 has a cross shape.
[0025]
A linear body 4 is provided in the substantially central portion 2 of the UTP cable interposition 1 in the longitudinal direction over the entire length of the cable. The linear body 4 is made of fibrous material, for example, tetron, nylon, cotton, etc., and has excellent flexibility and flexibility. The linear body 4 is provided integrally with the UTP cable interposition 1 at a substantially central portion 2. As described above, as a method of providing the linear body 4 integrally with the UTP cable intervention 1 substantially at the substantially central portion 2 of the UTP cable intervention 1, for example, the UTP cable intervention 1 is formed around the linear body 4. A method of extruding a resin or the like and molding is considered.
[0026]
FIG. 2 shows an example of a UTP cable into which such a UTP cable interposer 1 is inserted.
The UTP cable 5 shown in the figure has four twisted pair cores 6, a UTP cable interposition 1, and a jacket 7.
[0027]
The twisted pair core 6 is formed by twisting two insulated cores 10 formed by coating an insulator 9 on a conductor 8. Then, between the four twisted pair cores 6 formed in this manner, the UTP cable interposition 1 is inserted over the entire length of the cable, and the UTP cable 5 is formed by covering the jacket 7 thereon. ing.
[0028]
As a result, each twisted pair core 6 enters between the partition walls 3 of the UTP cable interposition 1 and is fixed, and the distance between the pair twisted cores 6 is separated by the partition wall 3 by a certain distance or more.
[0029]
In the above-described UTP cable interposition 1 and the UTP cable into which the UTP cable interposition 1 is inserted, the UTP cable interposition 1 is inserted between the twisted pair cores 6 to cover a jacket 7 thereon. When the UTP cable interposition 1 is twisted when manufacturing the cable, the fibrous linear body 4 provided at the substantially central portion 2 of the UTP cable interposition 1 is also twisted. However, the twisted fibrous linear body 4 is provided with a restoring force to return to the original state. Since the material of the linear body 4 is fibrous, the restoring force is stronger than the restoring force of the UTP cable intervention 1 formed of resin. Then, once the twisted fibrous linear body 4 returns to its original state due to such a restoring force, the UTP cable interposition 1 in which the linear body 4 covering the substantially central portion 2 is integrally provided. Twisting about the substantially central portion 2 also returns to its original state. Therefore, the twisted pair core 6 can be easily fixed between the partition walls 3 of the UTP cable interposition 1. Further, since the material of the linear body 4 is fibrous and excellent in flexibility, by providing this in the substantially central portion 2 of the UTP cable intervention 1, the flexibility of the UTP cable intervention 1 is improved. . Therefore, the flexibility of the UTP cable 5 into which the UTP cable interposition 1 is inserted is improved as compared with the UTP cable into which the interposition having no linear body is inserted.
[0030]
Next, a second example of the embodiment of the UTP cable interposition according to the present invention will be described.
FIG. 3 is a cross-sectional view of the UTP cable interposition according to the present embodiment.
[0031]
The UTP cable interposition 11 of the present example shown in the figure has a substantially central portion 2 formed to be thick, and a base of the partition wall portion 3 to be thick and has a curved surface. The fibrous linear body 4 is provided in the longitudinal direction over the entire length of the cable at the substantially central portion 2 formed as described above. Other configurations are the same as those in the first example of the above embodiment.
[0032]
FIG. 4 shows an example of a UTP cable into which such a UTP cable intervention 11 is inserted.
The UTP cable 12 shown in the figure is configured by inserting the UTP cable intervening 11 having a substantially central portion 2 formed thickly between the twisted pair cores 6 and covering the jacket 7 thereon. ing. The twisted pair core 6 between the partition portions 3 is stably fixed between the partition portions 3 by a curved surface formed at the root of the partition portion 3. Other configurations are the same as those of the UTP cable 5 shown in FIG. 2, and corresponding portions are denoted by the same reference numerals.
[0033]
According to the UTP cable interposition 11 as described above, since the substantially central portion 2 is formed to be thick, it is more difficult to be twisted at the time of manufacturing the cable. In addition, since the fibrous linear body 4 is provided in the substantially central portion 2 even when the thickness of the substantially central portion 2 is increased, the flexibility of the UTP cable intervention 11 is increased. The flexibility of the UTP cable 12 is improved as compared with the UTP cable in which the interposition having no linear body 4 is inserted.
[0034]
Next, a third example of the embodiment of the UTP cable interposition according to the present invention will be described.
FIG. 5 is a cross-sectional view of the UTP cable interposition according to the present embodiment.
[0035]
In the UTP cable interposer 13 of the present embodiment shown in the figure, the distal end portion 14 of the partition wall 3 is formed to be thick. As a result, a curved surface is formed at the distal end portion 14 of the partition wall 3. Other configurations are the same as those in the first example of the above embodiment.
[0036]
FIG. 6 shows an example of a UTP cable into which such a UTP cable interposer 13 is inserted.
The UTP cable 15 shown in the figure is configured by inserting the UTP cable interposition 13 having a thicker end portion 14 between the twisted pair cores 6 and covering the jacket 7 thereon. I have. The twisted pair core 6 between the partition walls 3 is stably fixed between the partition walls 3 because the distal end 14 of the partition wall 3 is formed thick and has a curved surface. Other configurations are the same as those of the UTP cable 5 shown in FIG. 2, and corresponding portions are denoted by the same reference numerals.
[0037]
According to the above-described UTP cable interposition 13 and the UTP cable 15 into which the UTP cable interposition is inserted, the fibrous linear body 4 is provided at the substantially central portion 2 so as to be hardly twisted. The end portion 14 of the partition wall portion 3 of the UTP cable interposition 13 that facilitates fixing of the wire between the partition wall portions 3 is thick, so that the twisted pair core 6 is further easily fixed between the partition wall portions 3. .
[0038]
【The invention's effect】
As described above, according to the first aspect of the present invention, even if the UTP cable interposition is twisted around the substantially central portion at the time of producing the cable, the fibrous linear body provided at the substantially central portion allows the UTP cable to be used. Since the twist of the interposition is restored, the twisted pair core is easily fixed between the partition walls of the UTP cable interposition. Further, since the flexibility of the UTP cable interposition is improved, the flexibility of the UTP cable in which the UTP cable interposition is inserted is improved as compared with the UTP cable in which the interposition having no linear body is inserted. I do.
[0039]
According to the invention as set forth in claim 2, the UTP cable interposition is further less likely to be twisted during cable production and the flexibility is improved, and the UTP cable into which the UTP cable interposition is inserted does not have the linear body. The flexibility is improved as compared with the UTP cable in which the is inserted.
[0040]
According to the third aspect of the present invention, the twisted pair core is further easily fixed between the partition walls.
[0041]
According to the invention as set forth in claim 4, the twisted pair core is easily fixed between the partition walls of the UTP cable interposition, and is more flexible than the UTP cable in which the interposition having no linear body is inserted. The UTP cable has improved performance.
[0042]
According to the fifth aspect of the present invention, the UTP cable in which the interposition for the UTP cable inserted between the plurality of twisted pair cores is further less likely to be twisted. Further, the flexibility of the UTP cable intervention is improved, and the flexibility of the UTP cable in which the UTP cable intervention is inserted is improved as compared with the UTP cable in which the intervention having no linear body is inserted.
[0043]
According to the sixth aspect of the present invention, there is provided a UTP cable in which a twisted pair core is further easily fixed between partition walls.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a first example of an embodiment of a UTP cable interposition according to the present invention.
FIG. 2 is a sectional view showing a UTP cable into which the UTP cable interposition shown in FIG. 1 is inserted.
FIG. 3 is a sectional view showing a second example of the embodiment of the UTP cable interposition according to the present invention.
FIG. 4 is a sectional view showing a UTP cable into which the UTP cable interposition shown in FIG. 3 is inserted.
FIG. 5 is a sectional view showing a third example of the embodiment of the UTP cable interposition according to the present invention.
FIG. 6 is a sectional view showing a UTP cable into which the UTP cable interposition shown in FIG. 5 is inserted.
FIG. 7 is a cross-sectional view showing a UTP cable into which a conventional UTP cable interposition is inserted.
[Explanation of symbols]
1,11,13 UTP cable interposition 2 Substantially central part 3 Partition wall part 4 Linear body 5,12,15 UTP cable 6 Twisted core 7 Outer shell 14 Tip

Claims (6)

複数本の対撚り線心をまとめて外被で被覆して構成したUTPケーブルの前記対撚り線心間に、ケーブル全長に渡って挿入され、略中心部から遠心方向に向かって延びて形成される複数の隔壁部によって前記各対撚り線心間の距離を一定以上に離隔するUTPケーブル用介在であって、
前記略中心部に、繊維質の線状体をケーブル全長に渡って長手方向に設けたことを特徴とするUTPケーブル用介在。
A plurality of pairs of twisted wire cores are collectively covered with a jacket, and inserted between the pair of twisted wire cores over the entire length of the cable, and are formed to extend from a substantially central portion in a centrifugal direction. A plurality of partition walls that separate the distance between the respective twisted pair cores by a predetermined distance or more,
An interposition for a UTP cable, wherein a fibrous linear body is provided in the substantially central portion in the longitudinal direction over the entire length of the cable.
前記略中心部を肉厚に形成したことを特徴とする請求項1に記載のUTPケーブル用介在。2. The UTP cable interposition according to claim 1, wherein the substantially central portion is formed thick. 前記隔壁部の先端部を肉厚に形成したことを特徴とする請求項1又は2に記載のUTPケーブル用介在。The UTP cable interposition according to claim 1 or 2, wherein a tip portion of the partition wall portion is formed to be thick. 複数本の対撚り線心を有し、略中心部から遠心方向に向かって延びて形成される複数の隔壁部によって前記各対撚り線心間の距離を一定以上に離隔するUTPケーブル用介在を、前記複数本の対撚り線心間にケーブル全長に渡って挿入した上に、外被を被覆して構成したUTPケーブルであって、
前記UTPケーブル用介在の前記略中心部には、繊維質の線状体をケーブル全長に渡って長手方向に設けたことを特徴とするUTPケーブル。
A UTP cable having a plurality of twisted pair cores and having a plurality of partition portions formed extending from a substantially central portion in a centrifugal direction to separate the distance between the respective paired twisted cores by a certain amount or more. A UTP cable that is inserted between the plurality of twisted pair cores over the entire length of the cable and coated with a jacket,
A UTP cable, wherein a fibrous linear body is provided in a longitudinal direction over the entire length of the cable at the substantially central portion of the UTP cable interposition.
前記UTPケーブル用介在の略中心部を肉厚に形成したことを特徴とする請求項4に記載のUTPケーブル。The UTP cable according to claim 4, wherein a substantially central portion of the UTP cable interposition is formed to be thick. 前記UTPケーブル用介在の隔壁部の先端を肉厚に形成したことを特徴とする請求項4又は5に記載のUTPケーブル。The UTP cable according to claim 4, wherein a tip end of the partition wall portion for the UTP cable is formed thick.
JP2003158919A 2003-06-04 2003-06-04 Interposer for utp cable and utp cable Abandoned JP2004362907A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007258169A (en) * 2006-03-06 2007-10-04 Belden Technologies Inc Web for separating conductors in communication cable
JP2008016400A (en) * 2006-07-10 2008-01-24 Totoku Electric Co Ltd Center interposition with rib and wire, and rounded multi-pair cable using it
WO2010018890A1 (en) * 2008-08-14 2010-02-18 Ls Cable Ltd., Unshielded twisted pair cable
KR100951051B1 (en) 2007-05-17 2010-04-05 엘에스전선 주식회사 Communication cable of high capacity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007258169A (en) * 2006-03-06 2007-10-04 Belden Technologies Inc Web for separating conductors in communication cable
JP2008016400A (en) * 2006-07-10 2008-01-24 Totoku Electric Co Ltd Center interposition with rib and wire, and rounded multi-pair cable using it
KR100951051B1 (en) 2007-05-17 2010-04-05 엘에스전선 주식회사 Communication cable of high capacity
US7910835B2 (en) 2007-05-17 2011-03-22 Ls Cable Ltd. Communication cable of high capacity
WO2010018890A1 (en) * 2008-08-14 2010-02-18 Ls Cable Ltd., Unshielded twisted pair cable

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