JP4136244B2 - Optical communication trunk cable - Google Patents

Optical communication trunk cable Download PDF

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Publication number
JP4136244B2
JP4136244B2 JP2000008655A JP2000008655A JP4136244B2 JP 4136244 B2 JP4136244 B2 JP 4136244B2 JP 2000008655 A JP2000008655 A JP 2000008655A JP 2000008655 A JP2000008655 A JP 2000008655A JP 4136244 B2 JP4136244 B2 JP 4136244B2
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cable
tape
reinforcing tube
optical communication
optical
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JP2001201641A (en
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源 田村
文博 秋月
英明 田島
憲治 野中
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トヨクニ電線株式会社
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Description

【０００１】
【発明の属する技術分野】
本発明はオフィスビル等の建物に光通信ケーブルを設置する場合に使用される光通信幹線ケーブルに関する。
【０００２】
【従来の技術】
従来、オフィスビル等の建物には地下に設けた外部からの光通信幹線ケーブルに接続される構内光キャビネットＰＴに接続された光通信幹線ケーブルを所定の階に設置した構内光キャビネットＰＤに融着またはコネクター等により接続するとともに、該構内キャビネットＰＤよりその階および上下階に光ケーブルを用いてそれぞれの階に設置された回線接続装置に接続している。
【０００３】
【発明が解決しようとする課題】
従来のオフィスビル等の建物への光通信ケーブルの配線方法では、光通信幹線ケーブルで所定の階に設けた構内光キャビネットＰＤに接続した後、光ケーブルを用いてその階および上下階に設置された回線接続装置に接続するため、現場での接続作業が大変で、手数がかかるという欠点があった。
また、各階にはあらかじめ設定された通信回線しか配線されていないため、所定の階にだけ需要が集中した場合、その配線のし直し作業が大変で、コスト高になるという欠点があった。
【０００４】
本発明は以上のような従来の欠点に鑑み、現場での接続作業を容易で楽に行なうことができるとともに、各階の需要が変化した場合でも、簡単な作業で短時間に、容易にその対応を行なうことができる光通信幹線ケーブルを提供することを目的としている。
【０００５】
本発明の前記ならびにそのほかの目的と新規な特徴は次の説明を添付図面と照らし合わせて読むと、より完全に明らかになるであろう。
ただし、図面はもっぱら解説のためのものであって、本発明の技術的範囲を限定するものではない。
【０００６】
【課題を解決するための手段】
上記目的を達成するために、本発明は多数個のテープ光心線が収納されたテープスロット型光通信幹線ケーブル本体と、このテープスロット型光通信幹線ケーブル本体の多数個のテープ光心線を必要な階の光配線ボックスに配線できるように該テープスロット型光通信幹線ケーブル本体より取り出し、取り出したテープ光心線をそれぞれ補強チューブ、この補強チューブに沿うように配置された少なくとも１本以上のテンションメンバー、このテンションメンバーと前記補強チューブとを覆うシースとからなる補強チューブケーブルの補強チューブに挿入して形成した複数個の分岐配線ケーブルと、少なくとも１個以上のテープ光心線が補強チューブケーブルの補強チューブに挿入された需要変動対応用予備ケーブルとからなり、前記需要変動対応用予備ケーブルが前記テープスロット型光通信幹線ケーブル本体に沿うように固定されたものであり、需要変動が生じた場合に前記需要変動対応用予備ケーブルの補強チューブケーブルを必要な場所で切断して補強チューブ内のテープ光心線を引き出して使用することを特徴とする建物の上部の階より下部の階へ吊り下げ状態で設置されるように光通信幹線ケーブルを構成している。
【０００７】
【０００８】
【発明の実施の形態】
以下、図面に示す実施の形態により、本発明を詳細に説明する。
【０００９】
図１ないし図６に示す本発明の第１の実施の形態において、１はオフィスビル等の建物２の上部の階より各階の床面に形成された貫通孔３を通過して下部階へ吊り下げ状態で設置される本発明の光通信幹線ケーブルで、この光通信幹線ケーブル１は多数個、本発明の実施の形態では５個のスロット４、４、４、４、４にそれぞれ４個収納された２０個のテープ光心線５が収納されたテープスロット型光通信幹線ケーブル本体６と、このテープスロット型光通信幹線ケーブル本体６の上端部に取付けられた、天井等に取付けられた取付け金具７に取付けられるケーブル吊り具８と、前記テープスロット型光通信幹線ケーブル本体６の少なくとも１個以上、本発明の実施の形態では２個のテープ光心線５、５を除く他の１８個のテープ光心線５を必要な階、本発明の実施の形態では各階の光配線ボックス９、９、９、９、９、９、９、９、９に配線できるように該テープスロット型光通信幹線ケーブル本体６の各階に位置する部位よりそれぞれ２個取り出し、取り出したテープ光心線５、５をそれぞれ補強チューブケーブル１０、１０、１０、１０、１０、１０、１０、１０、１０の補強チューブ１１、１１、１１、１１、１１、１１、１１、１１、１１に挿入し、テープ光心線５、５の取り出し部分をモールドやテープ等での分岐部固定材１３で固定した複数個、本発明の実施の形態では９個の分岐配線ケーブル１２、１２、１２、１２、１２、１２、１２、１２、１２と、この９個の分岐配線ケーブル１２、１２、１２、１２、１２、１２、１２、１２、１２に使用されていない２個のテープ光心線５、５を前記テープスロット型光通信幹線ケーブル本体６の下部部位より取り出し、取り出したテープ光心線５、５を補強チューブケーブル１０の補強チューブ１１に挿入して、テープ光心線５、５の取り出し部分をモールドやテープ等の分岐固定部材１３で固定して、該テープスロット型光通信幹線ケーブル本体６にテープ１４等によって沿うように固定した需要変動対応用予備ケーブル１５とで構成されている。
【００１０】
前記補強チューブケーブル１０、１０、１０、１０、１０、１０、１０、１０、１０、１０は図６に示すように、複数個のテープ光心線５が挿入される断面長方形筒状の補強チューブ１１と、この補強チューブ１１の両側部に沿うように配置された２個のテンションメンバー１６、１６と、この２個のテンションメンバー１６、１６と前記補強チューブ１１とを両側部に切り裂き用の切欠部１７、１７が形成された、輪郭が楕円形状となるように覆うシース１８とで構成されている。
【００１１】
前記各階に配線される９個の分岐配線ケーブル１２、１２、１２、１２、１２、１２、１２、１２、１２は各階の光配線ボックス９、９、９、９、９、９、９、９、９に接続される長さに形成されるとともに、先端部には光配線ボックス９、９、９、９、９、９、９、９、９のコネクター１９に接続されるコネクター２０が取付けられている。
【００１２】
上記構成の光通信幹線ケーブル１は、工場で配線する建物２に使用できるように製造され、現場に運んで図１に示すように、天井等に取付けられた取付け金具７にケーブル吊り具８を取付け、各階の床面に形成された貫通孔３をそれぞれ通過させて吊り下げ状態とする。
しかる後、光通信幹線ケーブル１の下端部の１８個のテープ光心線５を外部からの外部光通信幹線ケーブル２１が接続された構内光キャビネット２２に接続するとともに、各階の分岐配線ケーブル１２、１２、１２、１２、１２、１２、１２、１２、１２を各階に設置された光配線ボックス９、９、９、９、９、９、９、９、９に接続する。
また、各階の床面に形成した貫通孔３もそれぞれスラブポットを用いて耐火充填材を充填して閉塞したり、コンクリートで埋め戻し等によって閉塞する。
【００１３】
需要変動が生じた場合、需要変動対応用予備ケーブル１５の補強チューブケーブル１０を必要な場所で切断して、補強チューブ１１内のテープ光心線５、５を引き出して使用する。
この場合、補強チューブケーブル１０を切断するだけでよく、貫通孔３を開放したり、閉塞したりする無駄な作業を行なわなくてもよい。
【００１４】
【発明の異なる実施の形態】
次に、図７ないし図１８に示す本発明の異なる実施の形態につき説明する。なお、これらの本発明の異なる実施の形態の説明に当って、前記本発明の第１の実施の形態と同一構成部分には同一符号を付して重複する説明を省略する。
【００１５】
図７ないし図９に示す本発明の第２の実施の形態において、前記本発明の第１の実施の形態と主に異なる点は、テープスロット型光通信幹線ケーブル本体６の任意の部位、本発明の実施の形態ではほぼ中央部位よりテープ光心線５、５を取り出した需要変動対応用予備ケーブル１５Ａを形成した点で、このように形成した光通信幹線ケーブル１Ａにしても、前記本発明の第１の実施の形態と同様な作用効果が得られる。
【００１６】
図１０ないし図１２に示す本発明の第３の実施の形態において、前記本発明の第１の実施の形態と主に異なる点は、テープスロット型光通信幹線ケーブル本体６の多数個のテープ光心線５を各階にそれぞれ配線できるように複数個の分岐配線ケーブル１２に用いるとともに、テープスロット型光通信幹線ケーブル本体６に複数個のテープ光心線５が挿入された補強チューブケーブル１０をテープ１４等で沿うように固定した需要変動対応用予備ケーブル１５Ｂを設けた点で、このように構成した光通信幹線ケーブル１Ｂにしても、前記本発明の第１の実施の形態と同様な作用効果が得られる。
【００１７】
図１３ないし図１５に示す本発明の第４の実施の形態において、前記本発明の第１の実施の形態と主に異なる点は、円筒形状の補強チューブ１１Ａを使用した補強チューブケーブル１０Ａを用いて複数個の分岐配線ケーブル１２Ａ、１２Ａ、１２Ａ、１２Ａ、１２Ａ、１２Ａ、１２Ａ、１２Ａ、１２Ａと、需要変動対応用予備ケーブル１５Ｃとを形成した点で、このように形成した光通信幹線ケーブル１Ｃにしても、前記本発明の第１の形態と同様な作用効果が得られる。
【００１８】
図１６ないし図１８に示す本発明の第５の実施の形態において、前記本発明の第１の実施の形態と主に異なる点は、中央部に配置したテンションメンバー１６の両側部に円筒形状の補強チューブ１１Ａ、１１Ａを使用した補強チューブケーブル１０Ｂを用いて需要変動対応用予備ケーブル１５Ｄを形成した点で、このように形成した光通信幹線ケーブル１Ｄにしても、前記本発明の第１の形態と同様な作用効果が得られる。
【００１９】
【発明の効果】
以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。
【００２０】
（１）多数個のテープ光心線が収納されたテープスロット型光通信幹線ケーブル本体と、このテープスロット型光通信幹線ケーブル本体の多数個のテープ光心線を必要な階の光配線ボックスに配線できるように該テープスロット型光通信幹線ケーブル本体より取り出し、取り出したテープ光心線をそれぞれ補強チューブ、この補強チューブに沿うように配置された少なくとも１本以上のテンションメンバー、このテンションメンバーと前記補強チューブとを覆うシースとからなる補強チューブケーブルの補強チューブに挿入して形成した複数個の分岐配線ケーブルと、少なくとも１個以上のテープ光心線が補強チューブケーブルの補強チューブに挿入された需要変動対応用予備ケーブルとからなり、前記需要変動対応用予備ケーブルが前記テープスロット型光通信幹線ケーブル本体に沿うように固定されたものであり、需要変動が生じた場合に前記需要変動対応用予備ケーブルの補強チューブケーブルを必要な場所で切断して補強チューブ内のテープ光心線を引き出して使用することを特徴とする建物の上部の階より下部の階へ吊り下げ状態で設置されるように構成されているので、複数個の分岐配線ケーブルの分岐部をスリムに形成することができるとともに、該複数個の分岐配線ケーブルのテープ光心線を補強チューブケーブルで損傷しないように確実に保護することができる。
したがって、楽にかつテープ光心線を損傷させることなく、建物に設置することができる。
【００２１】
（２）前記（１）によって、テープスロット型光通信配線ケーブル本体のテープ光心線を必要な階に設けた光配線ボックスに補強チューブケーブルで覆って直接配線することができる。
したがって、配線工事を短時間に行なうことができるとともに、接続が直接的に行なえるので、配線不良を効率よく防止することができ、配線工事の信頼性の向上を図ることができる。
【００２２】
（３）前記（１）によって、需要が変動した場合には需要変動対応用予備ケーブルを用いて対応することができる。
したがって、従来のように各階の床面の貫通孔を開放して配線作業を行なうような大変な作業が不要で、需要変動対応用予備ケーブルの補強チューブケーブルを切断して内部のテープ光心線を引き出して接続するだけでよく、短時間に楽な作業で行なうことができる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態の使用状態の説明図。
【図２】本発明の第１の実施の形態の一部中間省略した正面図。
【図３】図２の３−３線に沿う拡大断面図。
【図４】本発明の第１の実施の形態の分岐部の説明図。
【図５】図３の５−５線に沿う拡大断面図。
【図６】本発明の第１の実施の形態の補強チューブケーブルの説明図。
【図７】本発明の第２の実施の形態の使用状態の説明図。
【図８】本発明の第２の実施の形態の一部中間省略した正面図。
【図９】本発明の第２の実施の形態の分岐部の説明図。
【図１０】本発明の第３の実施の形態の使用状態の説明図。
【図１１】本発明の第３の実施の形態の一部中間省略した正面図。
【図１２】本発明の第３の実施の形態の要部説明図。
【図１３】本発明の第４の実施の形態の使用状態の説明図。
【図１４】本発明の第４の実施の形態の一部中間省略した正面図。
【図１５】本発明の第４の実施の形態の補強チューブケーブルの説明図。
【図１６】本発明の第５の実施の形態の使用状態の説明図。
【図１７】本発明の第５の実施の形態の一部中間省略した正面図。
【図１８】本発明の第５の実施の形態の補強チューブケーブルの説明図。
【符号の説明】
１、１Ａ、１Ｂ、１Ｃ、１Ｄ：光通信幹線ケーブル、
２：建物、
３：貫通孔、
４：スロット、 ５：テープ光心線、
６：テープスロット型光通信幹線ケーブル本体、
７：取付け金具、 ８：ケーブル吊り具、
９：光配線ボッス、
１０、１０Ａ、１０Ｂ：補強チューブケーブル、
１１、１１Ａ：補強チューブ、
１２：分岐配線ケーブル、１３：分岐部固定材、
１４：テープ、
１５、１５Ａ、１５Ｂ、１５Ｃ、１５Ｄ：需要変動対応用予備ケーブル、
１６：テンションメンバー、
１７：切欠部、 １８：シース、
１９：コネクター、 ２０：コネクター、
２１：外部光通信幹線ケーブル、
２２：構内光キャビネット。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical communication trunk cable used when an optical communication cable is installed in a building such as an office building.
[0002]
[Prior art]
Conventionally, in an office building or the like, an optical communication trunk cable connected to an indoor optical cabinet PT connected to an external optical communication trunk cable provided underground is fused to an indoor optical cabinet PD installed on a predetermined floor. Alternatively, they are connected by connectors or the like, and are connected to the line connection devices installed on the respective floors using optical cables on the floor and upper and lower floors from the local cabinet PD.
[0003]
[Problems to be solved by the invention]
In the conventional method of wiring an optical communication cable to a building such as an office building, the optical communication trunk cable is connected to the indoor optical cabinet PD provided on a predetermined floor, and then installed on the floor and the upper and lower floors using the optical cable. Since it is connected to the line connection device, the connection work at the site is difficult and it takes a lot of work.
Further, since only communication lines set in advance are wired on each floor, when demand concentrates only on a predetermined floor, rewiring work is difficult and the cost is high.
[0004]
In view of the above-mentioned conventional drawbacks, the present invention can easily and easily perform on-site connection work, and can easily cope with it in a short time even when demand on each floor changes. An object of the present invention is to provide an optical communication trunk cable that can be used.
[0005]
The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a tape slot type optical communication trunk cable main body in which a large number of tape optical cores are accommodated, and a plurality of tape optical cores of the tape slot type optical communication trunk cable main body. Take out from the tape slot type optical communication trunk cable body so that it can be wired to the optical distribution box on the required floor, and take out the tape optical cores taken out at least one reinforcing tube and at least one arranged along this reinforcing tube A plurality of branch wiring cables formed by inserting into a reinforcing tube of a reinforcing tube cable comprising a tension member, a sheath covering the tension member and the reinforcing tube, and at least one tape optical fiber is a reinforcing tube cable Do Ri, varying the demand from the inserted demand fluctuations corresponding spare cable reinforcement tube The corresponding spare cable is fixed along the main body of the tape slot type optical communication trunk cable, and when the demand fluctuation occurs, the reinforcing tube cable of the demand fluctuation corresponding spare cable is cut at a necessary place. The optical communication trunk cable is constructed so as to be installed in a suspended state from the upper floor to the lower floor of the building, wherein the tape optical fiber in the reinforcing tube is pulled out and used .
[0007]
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
[0009]
In the first embodiment of the present invention shown in FIG. 1 to FIG. 6, 1 is suspended from an upper floor of a building 2 such as an office building through a through-hole 3 formed on the floor of each floor to the lower floor. In the optical communication trunk cable of the present invention installed in a lowered state, a large number of optical communication trunk cables 1 are accommodated, and in the embodiment of the present invention, four slots are accommodated in four slots 4, 4, 4, 4, 4 respectively. Tape-slot type optical communication trunk cable main body 6 in which 20 tape optical cores 5 are accommodated, and an attachment attached to the upper end of the tape slot-type optical communication trunk cable main body 6 and attached to the ceiling or the like At least one or more of the cable suspension 8 attached to the metal fitting 7 and the tape slot type optical communication trunk cable main body 6, and in the embodiment of the present invention, 18 other than the two tape optical cores 5 and 5 are used. Tape optical core 5 In the embodiment of the present invention, each floor of the tape slot type optical communication trunk cable main body 6 can be wired to the optical wiring boxes 9, 9, 9, 9, 9, 9, 9, 9, 9 on each floor in the embodiment of the present invention. 2 are taken out from each of the parts located in the reinforcing tube cables 10, 10, 10, 10, 10, 10, 10, and the reinforcing tubes 11, 11, 11, respectively. 11, 11, 11, 11, 11, 11, a plurality of tape optical cores 5, 5 taken out by fixing with a branch fixing member 13 such as a mold or tape, in the embodiment of the present invention Nine branch wiring cables 12, 12, 12, 12, 12, 12, 12, 12, 12, and these nine branch wiring cables 12, 12, 12, 12, 12, 12, 12, 12, 12 Not used 2 The optical fiber cores 5 and 5 are taken out from the lower part of the tape slot type optical communication trunk cable main body 6, and the optical fiber cores 5 and 5 are inserted into the reinforcing tube 11 of the reinforcing tube cable 10. The take-out portion of the cores 5 and 5 is fixed with a branch fixing member 13 such as a mold or a tape, and is fixed to the tape slot type optical communication trunk cable main body 6 with a tape 14 or the like, and a spare cable 15 for demand fluctuation correspondence. It consists of and.
[0010]
The reinforcing tube cables 10, 10, 10, 10, 10, 10, 10, 10, 10 are, as shown in FIG. 6, a reinforcing tube having a rectangular cross section in which a plurality of tape optical fibers 5 are inserted. 11, two tension members 16, 16 arranged along both sides of the reinforcing tube 11, and notches for cutting the two tension members 16, 16 and the reinforcing tube 11 on both sides. It is comprised with the sheath 18 in which the parts 17 and 17 were formed and covered so that an outline may become elliptical shape.
[0011]
The nine branch wiring cables 12, 12, 12, 12, 12, 12, 12, 12, 12 wired on each floor are optical wiring boxes 9, 9, 9, 9, 9, 9, 9, 9 on each floor. The connector 20 is connected to the connector 19 of the optical wiring box 9, 9, 9, 9, 9, 9, 9, 9. ing.
[0012]
The optical communication trunk cable 1 having the above-described configuration is manufactured so as to be used in a building 2 to be wired at a factory, and is carried to the site, and as shown in FIG. 1, a cable suspension 8 is attached to a mounting bracket 7 attached to a ceiling or the like. Attach and pass through the through-holes 3 formed on the floor surface of each floor, and suspend them.
Thereafter, the 18 optical fiber cores 5 at the lower end of the optical communication main cable 1 are connected to the indoor optical cabinet 22 to which the external optical communication main cable 21 from the outside is connected, and the branch wiring cables 12 on each floor, 12, 12, 12, 12, 12, 12, 12, 12 are connected to optical wiring boxes 9, 9, 9, 9, 9, 9, 9, 9, 9 installed on each floor.
Further, the through holes 3 formed on the floor surface of each floor are also closed by filling with a refractory filler using a slab pot or backfilling with concrete.
[0013]
When demand fluctuation occurs, the reinforcing tube cable 10 of the reserve cable 15 for demand fluctuation is cut at a necessary place, and the tape optical fibers 5 and 5 in the reinforcing tube 11 are pulled out and used.
In this case, it is only necessary to cut the reinforcing tube cable 10, and it is not necessary to perform a useless work of opening or closing the through hole 3.
[0014]
Different Embodiments of the Invention
Next, different embodiments of the present invention shown in FIGS. 7 to 18 will be described. In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.
[0015]
The second embodiment of the present invention shown in FIGS. 7 to 9 is mainly different from the first embodiment of the present invention in that an arbitrary portion of the tape slot type optical communication main cable body 6, the present In the embodiment of the present invention, the demand fluctuation corresponding spare cable 15A is formed by taking out the optical fiber cores 5 and 5 from the substantially central portion. The same effects as those of the first embodiment can be obtained.
[0016]
The third embodiment of the present invention shown in FIGS. 10 to 12 is mainly different from the first embodiment of the present invention in that a plurality of tape lights of the tape slot type optical communication trunk cable main body 6 are used. The core wire 5 is used for a plurality of branch wiring cables 12 so that it can be wired to each floor, and a reinforcing tube cable 10 in which a plurality of tape optical core wires 5 are inserted into a tape slot type optical communication trunk cable body 6 is taped. 14 is provided with a standby cable 15B for demand fluctuation fixed so as to follow along with the optical communication trunk cable 1B configured in this way, the same function and effect as the first embodiment of the present invention. Is obtained.
[0017]
The fourth embodiment of the present invention shown in FIGS. 13 to 15 is mainly different from the first embodiment of the present invention in that a reinforcing tube cable 10A using a cylindrical reinforcing tube 11A is used. A plurality of branch wiring cables 12A, 12A, 12A, 12A, 12A, 12A, 12A, 12A, 12A and an optical communication trunk cable 1C formed in this way in that a spare cable 15C for demand fluctuation is formed. In any case, the same effect as the first embodiment of the present invention can be obtained.
[0018]
In the fifth embodiment of the present invention shown in FIGS. 16 to 18, the main difference from the first embodiment of the present invention is that cylindrical members are formed on both sides of the tension member 16 disposed in the center. In the optical communication trunk cable 1D formed as described above, the first embodiment of the present invention is used even in the optical communication trunk cable 1D formed in this way in that the demand fluctuation corresponding spare cable 15D is formed using the reinforcing tube cable 10B using the reinforcing tubes 11A and 11A. The same effect can be obtained.
[0019]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
[0020]
(1) A tape slot type optical communication trunk cable main body in which a large number of tape optical cores are housed, and a large number of tape optical cores of the tape slot type optical communication trunk cable main body in an optical wiring box on a required floor. The tape optical fiber trunk cable is removed from the tape slot type optical communication trunk cable body so that it can be wired, and each of the tape optical fibers taken out is a reinforcing tube, at least one tension member arranged along the reinforcing tube, Demand for insertion of a plurality of branch wiring cables formed by inserting into a reinforcing tube of a reinforcing tube cable comprising a sheath covering the reinforcing tube, and at least one optical fiber core into the reinforcing tube of the reinforcing tube cable Ri Do and a variation corresponding spare cable, the demand fluctuation corresponding spare cables the Te The slotted optical communication trunk cable is fixed along the main cable body, and when demand fluctuation occurs, the reinforcing tube cable of the demand fluctuation response spare cable is cut off at a necessary place, and the tape light in the reinforcing tube is cut. It is constructed to be installed in a suspended state from the upper floor to the lower floor of the building, which is characterized by pulling out the core wire, so the branch part of multiple branch wiring cables is formed slim In addition, the optical fiber cores of the plurality of branch wiring cables can be reliably protected from being damaged by the reinforcing tube cable.
Therefore, it can be installed in a building easily and without damaging the optical fiber core.
[0021]
(2) According to the above (1), the tape optical core wire of the tape slot type optical communication wiring cable body can be directly wired by covering the optical wiring box provided on the required floor with the reinforcing tube cable.
Therefore, the wiring work can be performed in a short time and the connection can be made directly, so that the wiring failure can be efficiently prevented and the reliability of the wiring work can be improved.
[0022]
(3) According to the above (1), when the demand fluctuates, it is possible to cope with the demand fluctuation corresponding spare cable.
Therefore, it is not necessary to perform the laborious work of opening the through-holes on the floors of each floor as in the prior art, and cutting the reinforcing tube cable of the spare cable for demand fluctuation and cutting the internal optical fiber core. It is only necessary to pull out the connection and connect it.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a usage state of a first embodiment of the present invention.
FIG. 2 is a front view of the first embodiment of the present invention, partly omitted in the middle.
3 is an enlarged cross-sectional view taken along line 3-3 in FIG.
FIG. 4 is an explanatory diagram of a branching unit according to the first embodiment of this invention.
5 is an enlarged cross-sectional view taken along line 5-5 in FIG.
FIG. 6 is an explanatory diagram of the reinforcing tube cable according to the first embodiment of the present invention.
FIG. 7 is an explanatory diagram of a use state of the second embodiment of the present invention.
FIG. 8 is a front view in which a middle part of the second embodiment of the present invention is omitted.
FIG. 9 is an explanatory diagram of a branching unit according to the second embodiment of this invention.
FIG. 10 is an explanatory diagram of a usage state of the third embodiment of the present invention.
FIG. 11 is a front view of the third embodiment of the present invention with a part of the middle omitted.
FIG. 12 is an explanatory diagram of relevant parts of a third embodiment of the present invention.
FIG. 13 is an explanatory diagram of a usage state of the fourth embodiment of the present invention.
FIG. 14 is a front view of the fourth embodiment of the present invention, partly omitted from the middle.
FIG. 15 is an explanatory diagram of a reinforcing tube cable according to a fourth embodiment of the present invention.
FIG. 16 is an explanatory diagram of a usage state of the fifth embodiment of the present invention.
FIG. 17 is a front view of the fifth embodiment of the present invention with a part of the middle omitted.
FIG. 18 is an explanatory diagram of a reinforcing tube cable according to a fifth embodiment of the present invention.
[Explanation of symbols]
1, 1A, 1B, 1C, 1D: optical communication trunk cable,
2: Building,
3: Through hole,
4: Slot, 5: Tape optical fiber,
6: Tape slot type optical communication trunk cable body,
7: Mounting bracket, 8: Cable hanger,
9: Optical wiring box,
10, 10A, 10B: Reinforced tube cable,
11, 11A: reinforcing tube,
12: Branch wiring cable, 13: Branch portion fixing material,
14: Tape,
15, 15A, 15B, 15C, 15D: spare cable for demand fluctuation,
16: Tension member,
17: Notch, 18: Sheath
19: Connector, 20: Connector,
21: External optical communication trunk cable,
22: On-premises optical cabinet.

Claims (1)

多数個のテープ光心線が収納されたテープスロット型光通信幹線ケーブル本体と、このテープスロット型光通信幹線ケーブル本体の多数個のテープ光心線を必要な階の光配線ボックスに配線できるように該テープスロット型光通信幹線ケーブル本体より取り出し、取り出したテープ光心線をそれぞれ補強チューブ、この補強チューブに沿うように配置された少なくとも１本以上のテンションメンバー、このテンションメンバーと前記補強チューブとを覆うシースとからなる補強チューブケーブルの補強チューブに挿入して形成した複数個の分岐配線ケーブルと、少なくとも１個以上のテープ光心線が補強チューブケーブルの補強チューブに挿入された需要変動対応用予備ケーブルとからなり、前記需要変動対応用予備ケーブルが前記テープスロット型光通信幹線ケーブル本体に沿うように固定されたものであり、需要変動が生じた場合に前記需要変動対応用予備ケーブルの補強チューブケーブルを必要な場所で切断して補強チューブ内のテープ光心線を引き出して使用することを特徴とする建物の上部の階より下部の階へ吊り下げ状態で設置される光通信幹線ケーブル。A tape slot type optical communication trunk cable main body in which a large number of tape optical cores are housed, and a large number of tape optical core wires of the tape slot type optical communication main cable body can be wired to an optical wiring box on a required floor. The tape optical fiber cable is taken out from the main body of the tape slot type optical fiber cable, and the taken out optical fiber core is respectively a reinforcing tube, at least one tension member arranged along the reinforcing tube, the tension member and the reinforcing tube. A plurality of branch wiring cables formed by inserting into a reinforcing tube of a reinforcing tube cable made of a sheath covering the core and at least one tape optical core wire inserted into the reinforcing tube of the reinforcing tube cable Ri Do and a spare cable, the demand fluctuation corresponding spare cable said Tapes Tape-type optical communication trunk cable is fixed along the main cable body, and when demand fluctuation occurs, cut the reinforcing tube cable of the spare cable for demand fluctuation response at the necessary place and tape in the reinforcing tube An optical communication trunk cable installed in a suspended state from the upper floor of the building to the lower floor, characterized by pulling out the optical fiber.
JP2000008655A 2000-01-18 2000-01-18 Optical communication trunk cable Expired - Fee Related JP4136244B2 (en)

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JP4728529B2 (en) * 2001-08-17 2011-07-20 古河電気工業株式会社 Fiber optic cable
US7228036B2 (en) * 2004-11-30 2007-06-05 Corning Cable Systems Llc Adjustable tether assembly for fiber optic distribution cable
US7155093B2 (en) * 2004-05-24 2006-12-26 Corning Cable Systems Llc Distribution cable having overmolded mid-span access location with preferential bending
US7330621B2 (en) * 2004-05-24 2008-02-12 Corning Cable Systems Llc Flexible optical closure and other flexible optical assemblies
US7127143B2 (en) * 2004-05-24 2006-10-24 Corning Cable Systems Llc Distribution cable assembly having overmolded mid-span access location
US7266274B2 (en) * 2004-11-03 2007-09-04 Corning Cable Systems Llc Pre-connectorized fiber optic distribution cable having overmolded access location
JP4982053B2 (en) * 2005-06-21 2012-07-25 矢崎総業株式会社 Presser winding member for branch cable
JP4682015B2 (en) * 2005-10-27 2011-05-11 三菱電機ビルテクノサービス株式会社 Indoor external communication transmission line and integrated signal transmission system
JP4751212B2 (en) * 2006-02-16 2011-08-17 住友電気工業株式会社 Optical fiber branch cable, wiring method thereof, and providing method thereof
US8582938B2 (en) * 2006-05-11 2013-11-12 Corning Cable Systems Llc Fiber optic distribution cables and structures therefore
JP5390414B2 (en) * 2010-01-05 2014-01-15 株式会社オーシーシー Fiber optic cable
CN105676380B (en) 2014-11-21 2019-07-12 泰科电子(上海)有限公司 Cable runs system and multifibre joint

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