JP2002333561A - Terminal structure of optical fiber cable - Google Patents
Terminal structure of optical fiber cableInfo
- Publication number
- JP2002333561A JP2002333561A JP2001135956A JP2001135956A JP2002333561A JP 2002333561 A JP2002333561 A JP 2002333561A JP 2001135956 A JP2001135956 A JP 2001135956A JP 2001135956 A JP2001135956 A JP 2001135956A JP 2002333561 A JP2002333561 A JP 2002333561A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- cable
- fiber cable
- heat
- terminal structure
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/54—Underground or underwater installation; Installation through tubing, conduits or ducts using mechanical means, e.g. pulling or pushing devices
- G02B6/545—Pulling eyes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ケーブル端から導
出した複数本の光ファイバーコードの先端にコネクタを
それぞれ接続した光ファイバーケーブルの端末構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal structure of an optical fiber cable in which connectors are respectively connected to tips of a plurality of optical fiber cords derived from cable ends.
【０００２】[0002]
【従来の技術】一般に、光ファイバーケーブルを管路に
敷設する場合には、コネクタを備えない端末側から管路
に挿通している。2. Description of the Related Art In general, when laying an optical fiber cable in a pipeline, a terminal having no connector is inserted into the pipeline.
【０００３】[0003]
【発明が解決しようとする課題】しかし、地下街配線工
事やビル配線工事などの配線工事においては、配線事情
によってコネクタを備えた端末側から管路に挿通したい
場合もあるが、従来手段ではそれができず、配線工事の
手順に制約を受けることがあった。However, in a wiring work such as an underground mall wiring work or a building wiring work, there is a case where it is desired to insert a terminal provided with a connector into a pipeline depending on a wiring situation. It was not possible, and the wiring procedure was sometimes restricted.
【０００４】本発明は、このような点に着目してなされ
たものであって、光ファイバーケーブルをコネクタを備
えた端末側から細い管路にも容易に挿通敷設することが
できる端末構造を提供することを主たる目的とする。The present invention has been made in view of such a point, and provides a terminal structure in which an optical fiber cable can be easily inserted and laid from a terminal provided with a connector to a thin pipe. It is the main purpose.
【０００５】[0005]
【課題を解決するための手段】本発明では、上記目的を
達成するために、次のように構成している。In order to achieve the above object, the present invention has the following configuration.
【０００６】すなわち、請求項１に係る発明の光ファイ
バーケーブルの端末構造は、ケーブル端から導出した複
数本の光ファイバーコードの先端にコネクタをそれぞれ
接続した光ファイバーケーブルの端末構造であって、各
光ファイバーコードの導出長さをそれぞれ異ならせて、
各コネクタをケーブル長手方向に互いに位置ずれ状態に
配置するとともに、これら各光ファイバーコード群より
もテンションメンバを長く導出し、コネクタ付きの光フ
ァイバーコード群およびテンションメンバに緩衝材を巻
付けるとともに、更に、熱収縮チューブで外囲して締め
込み収束し、熱収縮チューブの端部より導出したテンシ
ョンメンバの先端に牽引部を形成してある、ことを特徴
とする。That is, the terminal structure of the optical fiber cable according to the first aspect of the present invention is a terminal structure of an optical fiber cable in which connectors are respectively connected to tips of a plurality of optical fiber cords derived from cable ends. With different derived lengths,
The respective connectors are arranged in a state of being displaced from each other in the longitudinal direction of the cable, the tension members are extended longer than the respective optical fiber cord groups, and a buffer material is wound around the optical fiber cord groups with connectors and the tension members, and furthermore, heat It is characterized in that it is surrounded by a shrink tube, tightened and converged, and a traction portion is formed at the tip of a tension member derived from an end of the heat shrink tube.
【０００７】請求項２に係る発明の光ファイバーケーブ
ルの端末構造は、請求項１記載の光ファイバーケーブル
の端末構造であって、前記緩衝材の外側に押え巻きテー
プを巻付けて熱収縮チューブで締め込み収束してある、
ことを特徴とする。According to a second aspect of the present invention, there is provided an end structure of the optical fiber cable according to the first aspect, wherein a press-winding tape is wound around the outside of the cushioning material and tightened with a heat-shrinkable tube. Converged,
It is characterized by the following.
【０００８】請求項３に係る発明の光ファイバーケーブ
ルの端末構造は、請求項２に記載の光ファイバーケーブ
ルの端末構造であって、前記押え巻きテープを熱により
変形する材料により構成するとともに、前記熱収縮チュ
ーブを透視可能な材料で構成してある、ことを特徴とす
る。According to a third aspect of the present invention, the terminal structure of the optical fiber cable is the terminal structure of the optical fiber cable according to the second aspect, wherein the holding tape is made of a material that is deformed by heat and the heat shrinkage is performed. The tube is made of a transparent material.
【０００９】請求項４に係る発明の光ファイバーケーブ
ルの端末構造は、請求項１から３のいずれかに記載の光
ファイバーケーブルの端末構造であって、前記緩衝材の
内側に引き裂き紐をコード長手方向に沿って配備し、引
き裂き紐の先端を熱収縮チューブの先端から導出してあ
る、ことを特徴とする。According to a fourth aspect of the present invention, there is provided an end structure of the optical fiber cable according to any one of the first to third aspects, wherein a tear string is provided inside the cushioning material in a longitudinal direction of the cord. And the tip of the tear string is led out of the tip of the heat-shrinkable tube.
【００１０】請求項５に係る発明の光ファイバーケーブ
ルの端末構造は、請求項１〜４のいずれかに記載の光フ
ァイバーケーブルの端末構造であって、前記緩衝材が、
ケーブル長手方向に沿った多数の紐状素材を周方向に並
べたものである、ことを特徴とする。According to a fifth aspect of the present invention, there is provided a terminal structure of an optical fiber cable according to any one of the first to fourth aspects, wherein the cushioning material is
It is characterized in that a number of cord-like materials are arranged in the circumferential direction along the cable longitudinal direction.
【００１１】〔作用〕上記構成によると、次のように作
用する。[Operation] According to the above configuration, the following operation is performed.
【００１２】すなわち、請求項１に係る発明の構成によ
ると、各光ファイバーコードの先端に接続されたコネク
タ群はコード長手方向に互いに位置がずれているので、
緩衝材を巻付けた状態ではコード径方向には余り嵩ばら
ず、しかも、熱収縮チューブでしっかりと締め込み収束
されるので、コネクタが内部でずれ動くようなことなく
小径の端末部が形成される。That is, according to the configuration of the first aspect of the present invention, the connector groups connected to the tips of the optical fiber cords are displaced from each other in the longitudinal direction of the cords.
When the cushioning material is wound, it does not bulk up in the cord radial direction, and it is tightly converged by the heat-shrinkable tube, so that a small-diameter terminal portion is formed without the connector shifting inside. You.
【００１３】請求項２に係る発明の構成によると、緩衝
材の外側に押え巻きテープを巻きつけて熱収縮チューブ
で覆うので、加熱して熱収縮チューブを収縮させてゆく
際に、チューブの収縮によって緩衝材がずれ動くことが
ない。According to the second aspect of the present invention, since the holding tape is wound around the outside of the cushioning material and covered with the heat-shrinkable tube, the heat-shrinkable tube shrinks when heated to shrink the heat-shrinkable tube. The cushioning material does not move due to the displacement.
【００１４】請求項３に係る発明の構成によると、熱収
縮チューブを加熱収縮させて締め込み収束してゆく際に
内部が透視できるので、収縮による締め込み具合を目視
しながら加熱を加減することができる。しかも、押え巻
きテープを熱により変形する材料で構成しているため
に、熱収縮チューブを加熱収縮させるために加える熱で
コネクタや光ファイバコードに破損が生じようとして
も、その破損発生より時間的に前に、押え巻きテープが
先に変形することになる。そのため、押え巻きテープの
変形を確認する（熱収縮チューブが透明のため可能とな
る）ことで、加熱による光ファイバコードやコネクタの
損傷を未然に防止することができる。According to the third aspect of the present invention, when the heat-shrinkable tube is shrunk by heating and tightening and converging, the inside can be seen through, so that heating is controlled while visually checking the degree of tightening due to shrinkage. Can be. In addition, since the holding tape is made of a material that is deformed by heat, even if the connector or optical fiber cord is damaged by the heat applied to heat-shrink the heat-shrinkable tube, it is more time-consuming than the breakage. Before that, the presser winding tape will be deformed first. Therefore, by confirming the deformation of the holding tape (the heat-shrinkable tube becomes transparent because it is transparent), damage to the optical fiber cord and the connector due to heating can be prevented.
【００１５】請求項４に係る発明の構成によると、光フ
ァイバーケーブルを管路に挿通した後、挿通した端末部
から光ファイバーコードおよびコネクタを露出させる場
合、端末部から導出されている引き裂き紐をコード長手
方向に引き操作することで、光ファイバーケーブル群を
覆っている緩衝材や熱収縮チューブなどをカッタなどの
工具を用いることなく切り開くことができる。According to the fourth aspect of the invention, when the optical fiber cable and the connector are exposed from the inserted terminal portion after the optical fiber cable is inserted into the conduit, the tear string led out from the terminal portion is connected to the cord length. By pulling in the direction, the cushioning material or the heat-shrinkable tube covering the optical fiber cable group can be cut open without using a tool such as a cutter.
【００１６】請求項５に係る発明の構成によると、緩衝
材がケーブル長手方向に沿った紐状素材群で形成されて
いるので、引き裂き紐のケーブル長手方向への引き裂き
抵抗になることはない。According to the structure of the present invention, since the cushioning member is formed of a string-like material group extending in the longitudinal direction of the cable, the tearing string does not have a resistance to tear in the longitudinal direction of the cable.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の態様を図面
に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１８】図１に、端末処理を施す前の光ファイバー
ケーブルの一端部が、また、図２〜図８に、端末処理行
程が、そして、図９に、端末処理された光ファイバーケ
ーブルの一端部がそれぞれ示されている。FIG. 1 shows one end of the optical fiber cable before the termination, FIG. 2 to FIG. 8 show the termination process, and FIG. 9 shows the one end of the terminated optical fiber cable. Each is shown.
【００１９】図１に示すように、この光ファイバーケー
ブル１の本体は、複数本（この例の場合６本）の光ファ
イバーコード２を鋼線あるいは鋼撚線からなるテンショ
ンメンバ３の周囲に配置して、これらを樹脂シース４で
被覆したものであり、各光ファイバーコード２はケーブ
ル端から導出されてそれぞれの先端にコネクタ５が接続
されている。As shown in FIG. 1, the main body of the optical fiber cable 1 has a plurality of (in this case, six) optical fiber cords 2 arranged around a tension member 3 made of a steel wire or a stranded steel wire. These are covered with a resin sheath 4, and each optical fiber cord 2 is led out from a cable end, and a connector 5 is connected to each end.
【００２０】ここで、各光ファイバーコード２のケーブ
ル端からの導出長さはそれぞれ異なっており、各コネク
タ５がケーブル長手方向に互いに重ならないよう位置ず
れしている。また、テンションメンバ３は、これら光フ
ァイバーコード２群よりも更に長く導出されている。The lengths of the optical fiber cords 2 from the ends of the cables are different from each other, and the connectors 5 are displaced so as not to overlap each other in the longitudinal direction of the cables. Further, the tension member 3 is led out even longer than the optical fiber cord 2 group.
【００２１】以上のように設定準備した光ファイバーケ
ーブル１の端末処理行程を図２〜図９に基づいて以下に
説明する。The terminal processing steps of the optical fiber cable 1 set and prepared as described above will be described below with reference to FIGS.
【００２２】まず、図２(ａ)に示すように、円筒状の収
納筒（以下、スパイラルと称す）１６を複数用意する。
スパイラル１６は、各光ファイバーコード２の端末をコ
ネクタ５ごと個別に収納可能な大きさ(主として軸方向
長さ)を有するとともに螺旋状に分離溝が形成されてい
る。First, as shown in FIG. 2A, a plurality of cylindrical storage tubes (hereinafter referred to as spirals) 16 are prepared.
The spiral 16 has a size (mainly the length in the axial direction) capable of individually storing the terminal of each optical fiber cord 2 together with the connector 5 and has a spiral separating groove.
【００２３】用意したこれらのスパイラル１６を各光フ
ァイバーコード２の端末(コネクタ５を含む)に巻きつけ
ることで、各光ファイバコード２の端末(コネクタ５を
含む)をスパイラル１６内に収納する。そして、この状
態で、図２(ｂ)に示すように、各スパイラル１６を光フ
ァイバコード２の端末ごと粘着テープ６でテンションメ
ンバ３に貼り付けて束ねる。By winding these prepared spirals 16 around the terminals (including the connectors 5) of the respective optical fiber cords 2, the terminals (including the connectors 5) of the respective optical fiber cords 2 are stored in the spirals 16. Then, in this state, as shown in FIG. 2B, each spiral 16 is attached to the tension member 3 with the adhesive tape 6 together with the terminal of the optical fiber cord 2 and bundled.
【００２４】次に、図３に示すように、アラミド不織布
などの強靭な材料からなる引き裂き紐７を光ファイバー
コード２群に沿って配置するとともに、その一端をケー
ブル本体部分に粘着テープ８で貼り付け固定する。その
後、光ファイバーコード２群に、柔軟な緩衝材９を巻付
ける。Next, as shown in FIG. 3, a tear string 7 made of a tough material such as aramid non-woven fabric is arranged along the optical fiber cord 2 group, and one end thereof is attached to the cable main body with an adhesive tape 8. Fix it. Then, the flexible buffer 9 is wound around the optical fiber cord 2 group.
【００２５】この例の緩衝材９は、ポリプロピレンなど
の柔軟な樹脂材からなる多数の紐状素材９ａの一端をテ
ープ９ｂに貼付けて暖簾状に構成したものであり、図４
に示すように、紐状素材９ａがケーブル長手方向に沿う
ように光ファイバーコード２群にしっかり巻付けられ
て、適所で粘着テープ１０で固定される。The cushioning material 9 of this embodiment is formed by attaching one end of a large number of cord-like materials 9a made of a flexible resin material such as polypropylene to a tape 9b to form a curtain.
As shown in (1), the cord-like material 9a is securely wound around the optical fiber cords 2 along the cable longitudinal direction, and is fixed in place by the adhesive tape 10.
【００２６】次に、同じく図４に示すように、ポリエチ
レンテレフタートなどの樹脂材からなり熱により収縮や
変色等の変形が生じる材料からなる押え巻きテープ１１
が緩衝材９の上から巻き付けられ、その上から図５に示
すように、透明な熱収縮チューブ１２が套嵌される。Next, as also shown in FIG. 4, a holding tape 11 made of a resin material such as polyethylene terephthalate, which is deformed by heat such as shrinkage or discoloration.
Is wound from above the cushioning material 9, and a transparent heat-shrinkable tube 12 is fitted over the cushioning material 9 as shown in FIG. 5.
【００２７】次に、図６に示すように、熱収縮チューブ
１２がケーブル本体側から先端側に向けて加熱され、押
え巻きテープ１１および緩衝材９ごと光ファイバーコー
ド２群が細く締め込み収束されて、図７に示す端末部Ａ
が形成される。Next, as shown in FIG. 6, the heat-shrinkable tube 12 is heated from the cable main body side to the distal end side, and the optical fiber cords 2 together with the presser winding tape 11 and the cushioning material 9 are finely tightened and converged. Terminal unit A shown in FIG.
Is formed.
【００２８】このとき、押え巻きテープ１１が熱により
変形する材料で構成されているために、熱収縮チューブ
１２を加熱収縮させるために加える熱でコネクタ５や光
ファイバコード２に破損が生じようとしても、その破損
発生より時間的に前に、押え巻きテープ１１が先に変形
（収縮や変色等）することになる。そのため、押え巻き
テープ１１の変形を確認する（熱収縮チューブ１２が透
明のため可能となる）ことで、加熱による光ファイバコ
ード２やコネクタ５の損傷を未然に防止することができ
る。At this time, since the press-winding tape 11 is made of a material which is deformed by heat, the connector 5 and the optical fiber cord 2 are likely to be damaged by the heat applied to heat-shrink the heat-shrinkable tube 12. However, before the breakage occurs, the presser winding tape 11 is first deformed (shrinkage, discoloration, etc.). Therefore, by confirming the deformation of the press-wrap tape 11 (the heat-shrinkable tube 12 becomes transparent because it is transparent), damage to the optical fiber cord 2 and the connector 5 due to heating can be prevented.
【００２９】次に図８に示すように、締め込み収束され
た端末部Ａの先端と基端には、段差なく滑らかに連続す
るようにテープ１３が巻き付けられるとともに、大きく
導出されたテンションメンバ３の先端側部分は被覆が剥
がされてテンション線材３ａが露出されて屈曲され、そ
の屈曲部に金属リング１４が装着される。Next, as shown in FIG. 8, a tape 13 is wound around the distal end and the proximal end of the terminal portion A, which has been tightened and converged, so that the tape 13 is smoothly continued without any level difference. The coating is peeled off at the tip end portion of the wire, the tension wire 3a is exposed and bent, and the metal ring 14 is attached to the bent portion.
【００３０】そして、図９に示すように、最後に金属リ
ング１４がつぶし変形されて、テンションメンバ３先端
部にループ状の牽引部１５が形成される。Then, as shown in FIG. 9, the metal ring 14 is finally crushed and deformed to form a loop-shaped traction portion 15 at the tip of the tension member 3.
【００３１】以上で、コネクタ付きの光ファイバーケー
ブル１の端末処理が完了し、図９に示すように、複数の
コネクタ５を縦列状にして巻き込み保護した端末部Ａを
備えた光ファイバーケーブル１を得ることができ、予め
管路に挿通した牽引索にテンションメンバ３の先端牽引
部１５を連結して牽引索を管路の他端側から引き抜くこ
とで、コネクタ付きの光ファイバーケーブル１をコネク
タ側の端部から管路に挿通敷設することができるのであ
る。With the above, the terminal processing of the optical fiber cable 1 with the connector is completed, and as shown in FIG. 9, the optical fiber cable 1 having the terminal portion A in which a plurality of connectors 5 are wrapped and protected in a row is obtained. The optical fiber cable 1 with a connector can be connected to the connector end by connecting the tip pulling portion 15 of the tension member 3 to the towing rope previously inserted into the pipeline and pulling the towing rope from the other end of the pipeline. Can be inserted and laid in the pipeline.
【００３２】そして、ケーブル挿通の後、端末部Ａの引
き裂き紐７をケーブル長手方向に引き操作することで、
緩衝材９、押え巻きテープ１１、および、熱収縮チュー
ブ１２を切り開いて、光ファイバーコード２群およびコ
ネクタ５群を露出させることができる。After the cable is inserted, the tearing string 7 of the terminal portion A is pulled in the longitudinal direction of the cable, whereby
The buffer member 9, the holding tape 11, and the heat-shrinkable tube 12 can be cut open to expose the optical fiber cord 2 group and the connector 5 group.
【００３３】なお、本発明は、以下のような形態で実施
することもできる。The present invention can be embodied in the following modes.
【００３４】前記緩衝材９は、必ずしも暖簾状である必
要はなく、一連のシート状のものであってもよい。この
場合、シート状の緩衝材９だけで巻き込みが十分行える
場合には、押え巻きテープ１１を省略してもよい。The cushioning material 9 does not necessarily have to be in the shape of a curtain, but may be in the form of a series of sheets. In this case, if the winding can be sufficiently performed only with the sheet-like cushioning material 9, the presser winding tape 11 may be omitted.
【００３５】また、引き裂き紐７が組み込まれると、工
具なしで端末部Ａを切り開くことができて便利である
が、必須のものではない。When the tear string 7 is incorporated, the terminal portion A can be cut open without a tool, which is convenient, but not essential.
【００３６】[0036]
【発明の効果】以上の説明から明らかなように、本発明
によれば以下に示すような効果が期待できる。As is clear from the above description, the following effects can be expected according to the present invention.
【００３７】請求項１に係る発明によれば、光ファイバ
ーケーブルのコネクタ装着側の端末を嵩低く小径にまと
めて保護することができ、細い管路にも光ファイバーバ
ーケーブルをコネクタ側から挿入して敷設することが容
易となり、コネクタの存在によって配線工事の手順に制
約を受けるようなことなく、任意に敷設することが可能
となった。According to the first aspect of the present invention, the terminals of the optical fiber cable on the connector mounting side can be collectively protected with a small size and a small diameter, and the optical fiber bar cable is inserted from the connector side and laid in a narrow conduit. This makes it easy to perform the wiring work without any restriction on the wiring procedure due to the presence of the connector.
【００３８】請求項２に係る発明によれば、緩衝材で保
護した上で熱収縮チューブで締付け収束することで、コ
ネクタを確実に保護しながら管路に円滑に挿通すること
ができ、請求項１の発明を好適に実施することができ
る。According to the second aspect of the present invention, since the connector is protected by the cushioning material and tightened and converged by the heat-shrinkable tube, the connector can be smoothly inserted into the conduit while reliably protecting the connector. The first invention can be suitably implemented.
【００３９】請求項３に係る発明によれば、熱収縮チュ
ーブで締付け収束する行程において、内部を透視して締
付け具合を監視しながら熱収縮チューブを熱収縮させる
ことができるので、無理のない、しかも、確実な締付け
収束を行うことができ、細い管路に挿通するに好適な端
末部を容易に構成することができる。さらには、本発明
によれば、押え巻きテープの変形を確認することで、加
熱による光ファイバコードやコネクタの損傷を未然に防
止することができる。According to the third aspect of the present invention, in the process of tightening and converging with the heat-shrinkable tube, the heat-shrinkable tube can be thermally contracted while seeing the inside to monitor the degree of tightening. In addition, it is possible to reliably perform the convergence of the tightening, and it is possible to easily configure a terminal portion suitable for being inserted into a thin conduit. Further, according to the present invention, by checking the deformation of the holding tape, it is possible to prevent the optical fiber cord and the connector from being damaged by heating.
【００４０】請求項４に係る発明によれば、引き裂き紐
を組み込んで端末部を構成することで、管路に挿通した
後の端末部の切り開きにカッターなどの工具が不要とな
り、切り開き行程で誤ってコードを損傷することがな
く、実用上の利便性に優れたものとなる。According to the fourth aspect of the present invention, since the terminal portion is configured by incorporating a tear string, a tool such as a cutter is not required for cutting and opening the terminal portion after being inserted into the pipeline, so that an error occurs during the cutting process. Thus, the code is not damaged and the practical convenience is improved.
【００４１】請求項５に係る発明によれば、引き裂き紐
による緩衝材の切り開き抵抗がなく、取扱い性および作
業性に優れたものとなる。According to the fifth aspect of the present invention, there is no resistance to tearing of the cushioning material by the tear string, and the handleability and workability are excellent.
【図１】端末処理する前の光ファイバーケーブルにおけ
る一端部の斜視図である。FIG. 1 is a perspective view of one end of an optical fiber cable before terminal processing.
【図２】端末処理行程を示す斜視図である。FIG. 2 is a perspective view showing a terminal processing step.
【図３】端末処理行程を示す斜視図である。FIG. 3 is a perspective view showing a terminal processing step.
【図４】端末処理行程を示す斜視図である。FIG. 4 is a perspective view showing a terminal processing step.
【図５】端末処理行程を示す斜視図である。FIG. 5 is a perspective view showing a terminal processing step.
【図６】端末処理行程を示す斜視図である。FIG. 6 is a perspective view showing a terminal processing step.
【図７】端末処理行程を示す斜視図である。FIG. 7 is a perspective view showing a terminal processing step.
【図８】端末処理行程を示す斜視図である。FIG. 8 is a perspective view showing a terminal processing step.
【図９】端末処理を施した光ファイバーケーブルにおけ
る一端部を示す斜視図である。FIG. 9 is a perspective view showing one end of an optical fiber cable subjected to terminal processing.
１ 光ファイバーケーブル ２ 光ファイバーコード ３ テンシヨンメンバ ４ 樹脂シース ５ コネクタ ６ 粘着テープ ７ 引き裂き紐 ８ 粘着テープ ９ 緩衝材 ９ａ 紐状素材 ９ｂ テープ １０ 粘着テープ １１ 押え巻きテープ １２ 熱収縮チューブ １３ テープ １４ 金属リング １５ 牽引部 １６ スパイラル Ａ 端末部 DESCRIPTION OF SYMBOLS 1 Optical fiber cable 2 Optical fiber cord 3 Tension member 4 Resin sheath 5 Connector 6 Adhesive tape 7 Tearing string 8 Adhesive tape 9 Buffer material 9a String material 9b Tape 10 Adhesive tape 11 Press-wrap tape 12 Heat shrink tube 13 Tape 14 Metal ring 15 Towing part 16 Spiral A terminal part
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｇ 15/02 Ｈ０２Ｇ 15/02 Ｄ (72)発明者 住谷 福一 東京都千代田区丸の内３丁目４番１号 新 国際ビル 三菱電線工業株式会社東京事務 所内 Ｆターム(参考） 2H001 BB25 DD03 DD15 FF07 FF08 KK06 KK17 KK22 5G355 AA10 BA08 BA15 CA17 5G375 AA18 BA15 BB43 CA02 CA19 CB08 CD04 DA20 DB33 EA17──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H02G 15/02 H02G 15/02 D (72) Inventor Fukuichi Sumitani 3-4-1 Marunouchi, Chiyoda-ku, Tokyo No. Shin Kokusai Building Mitsubishi Cable Industries, Ltd. Tokyo office F term (reference) 2H001 BB25 DD03 DD15 FF07 FF08 KK06 KK17 KK22 5G355 AA10 BA08 BA15 CA17 5G375 AA18 BA15 BB43 CA02 CA19 CB08 CD04 DA20 DB33 EA17
Claims (5)
ョンメンバとを備え、ケーブル端から導出させた複数本
の光ファイバーコードの先端にコネクタをそれぞれ接続
してなる光ファイバーケーブルの端末構造であって、 各光ファイバーコードのケーブル端からの導出長さをそ
れぞれ異ならせて、各コネクタをケーブル長手方向に互
いに位置ずれ状態に配置するとともに、これら各光ファ
イバーコード群よりも前記テンションメンバを長く導出
し、 コネクタ付きの光ファイバーコード群およびテンション
メンバに緩衝材を巻付けるとともに、更に、熱収縮チュ
ーブで外囲して締め込み収束し、 熱収縮チューブの端部より導出したテンションメンバの
先端に牽引部を形成してある、ことを特徴とする光ファ
イバーケーブルの端末構造1. A terminal structure of an optical fiber cable comprising a plurality of optical fiber cords and a tension member, wherein a connector is connected to a tip of each of the plurality of optical fiber cords led out from a cable end. The lead-out lengths of the cords from the cable ends are different from each other, and the respective connectors are arranged so as to be displaced from each other in the longitudinal direction of the cable. While the cushioning material is wound around the cord group and the tension member, it is further surrounded by a heat-shrinkable tube, tightened and converged, and a traction portion is formed at the tip of the tension member derived from the end of the heat-shrinkable tube. Terminal structure of optical fiber cable characterized by the following:
端末構造であって、 前記緩衝材の外側に押え巻きテープを巻付けて熱収縮チ
ューブで締め込み収束してある、 ことを特徴とする光ファイバーケーブルの端末構造。2. The optical fiber cable terminal structure according to claim 1, wherein a press-winding tape is wound around the outside of the cushioning material and tightened and converged by a heat-shrinkable tube. Terminal structure.
の端末構造であって、 前記押え巻きテープを熱により変形する材料により構成
するとともに、前記熱収縮チューブを透視可能な材料で
構成してある、 ことを特徴とする光ファイバーケーブルの端末構造。3. The end structure of the optical fiber cable according to claim 2, wherein the holding tape is made of a material that is deformed by heat, and the heat-shrinkable tube is made of a transparent material. A terminal structure for an optical fiber cable, characterized in that:
イバーケーブルの端末構造であって、 前記緩衝材の内側に引き裂き紐をコード長手方向に沿っ
て配備し、引き裂き紐の先端を熱収縮チューブの先端か
ら導出してある、 ことを特徴とする光ファイバーケーブルの端末構造。4. The end structure of the optical fiber cable according to claim 1, wherein a tear string is provided inside the cushioning material along a longitudinal direction of the cord, and a tip of the tear string is thermally shrunk. A terminal structure of an optical fiber cable, which is derived from a tip of a tube.
イバーケーブルの端末構造であって、 前記緩衝材が、ケーブル長手方向に沿った多数の紐状素
材を周方向に並べたものである、 ことを特徴とする光ファイバーケーブルの端末構造。5. The terminal structure for an optical fiber cable according to claim 1, wherein the buffer member is formed by arranging a number of cord-like materials along a cable longitudinal direction in a circumferential direction. A terminal structure of an optical fiber cable, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001135956A JP4087579B2 (en) | 2001-05-07 | 2001-05-07 | Optical fiber cable terminal structure and optical fiber cable terminal manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001135956A JP4087579B2 (en) | 2001-05-07 | 2001-05-07 | Optical fiber cable terminal structure and optical fiber cable terminal manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002333561A true JP2002333561A (en) | 2002-11-22 |
| JP4087579B2 JP4087579B2 (en) | 2008-05-21 |
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|---|---|---|---|
| JP2001135956A Expired - Fee Related JP4087579B2 (en) | 2001-05-07 | 2001-05-07 | Optical fiber cable terminal structure and optical fiber cable terminal manufacturing method |
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| CN102231508A (en) * | 2011-04-21 | 2011-11-02 | 河南电力试验研究院 | Optical fiber composite low-voltage cable (OPLC) termination joint photodetachment method |
| EP2485077A1 (en) * | 2011-02-08 | 2012-08-08 | B.V. Twentsche Kabelfabriek | Optical telecommunication cable and method for installing an optical communication cable |
| WO2013009936A1 (en) * | 2011-07-13 | 2013-01-17 | Corning Cable Systems Llc | Methods of preparing strength member pulling members in fiber optic cable furcations and related components, assemblies, and fiber optic cables |
| WO2013082204A1 (en) * | 2011-11-30 | 2013-06-06 | Corning Cable Systems Llc | Cable pulling grip having toolless removal |
| WO2013112396A1 (en) * | 2012-01-27 | 2013-08-01 | Corning Cable Systems Llc | Cable assembly having a small form-factor pulling grip and methods for making the same |
| JP2014002189A (en) * | 2012-06-15 | 2014-01-09 | Occ Corp | End structure of optical fiber cable and manufacturing method of end structure |
| FR2998679A1 (en) * | 2012-11-26 | 2014-05-30 | Decelect | Optical fiber cable, has outer sheath surrounding optical fibers, protection device provided at cable ends, directed towards wall sheaths and protecting fibers, and another outer sheath covering protection assembly of protection device |
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| JP2014002189A (en) * | 2012-06-15 | 2014-01-09 | Occ Corp | End structure of optical fiber cable and manufacturing method of end structure |
| FR2998679A1 (en) * | 2012-11-26 | 2014-05-30 | Decelect | Optical fiber cable, has outer sheath surrounding optical fibers, protection device provided at cable ends, directed towards wall sheaths and protecting fibers, and another outer sheath covering protection assembly of protection device |
| CN114730648A (en) * | 2020-03-10 | 2022-07-08 | 株式会社藤仓 | Cable, cable manufacturing method, and protective member removing method |
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