JPH04240806A - Installment method of wire - Google Patents
Installment method of wireInfo
- Publication number
- JPH04240806A JPH04240806A JP3023851A JP2385191A JPH04240806A JP H04240806 A JPH04240806 A JP H04240806A JP 3023851 A JP3023851 A JP 3023851A JP 2385191 A JP2385191 A JP 2385191A JP H04240806 A JPH04240806 A JP H04240806A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- wire
- conduit
- length
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 abstract description 53
- 239000002184 metal Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 238000011156 evaluation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
- G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Electric Cable Installation (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、光ファイバケーブル等
の線材を、あらかじめ布設したパイプケーブル等の管路
に加圧流体を用いて挿通し、布設を行なうする布設方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of laying a wire such as an optical fiber cable by inserting it into a pre-installed conduit such as a pipe cable using pressurized fluid.
【０００２】0002
【従来の技術】従来、通信用線材を圧力流体により管路
へ挿通する布設方法としては、特公平２−２２９２１号
公報に記載されているように、圧力室内に設けられた駆
動ローラーにより、通信用線材を管路内に送り込むよう
駆動する駆動機構を用いた布設装置が用いられている。
図３は、その概略を示すものである。図中、１は供給ド
ラム、２は布設装置、３は管路、４は光ファイバケーブ
ル、５は圧力流体供給口、６は駆動装置、７は通信用線
材の入口側のシール部、８は圧力流体吹込ノズルである
。光ファイバケーブル４は、２つの駆動ローラーよりな
る駆動装置６により両側から挟み込まれて管路３に向け
て送られる。管路３は、圧送装置２に気密に接続され、
圧力流体供給口５からは圧力流体吹込ノズル８により圧
力流体が管路３内に吹き込まれる。圧力流体としては、
圧縮空気を用いるのが簡便である。したがって、管路３
に進行される光ファイバケーブル４は、圧力流体の流れ
により管路３内を圧送される。[Prior Art] Conventionally, as a method of installing communication wires through pressure fluid into pipes, as described in Japanese Patent Publication No. 2-22921, communication wires are installed using drive rollers provided in a pressure chamber. A laying device is used that uses a drive mechanism that drives the wire rod into the pipe. FIG. 3 shows its outline. In the figure, 1 is a supply drum, 2 is a laying device, 3 is a conduit, 4 is an optical fiber cable, 5 is a pressure fluid supply port, 6 is a drive device, 7 is a seal part on the inlet side of the communication wire, and 8 is a It is a pressure fluid injection nozzle. The optical fiber cable 4 is sandwiched from both sides by a drive device 6 consisting of two drive rollers and sent toward the conduit 3. The pipe line 3 is airtightly connected to the pumping device 2,
Pressure fluid is blown into the pipe line 3 from the pressure fluid supply port 5 by a pressure fluid blowing nozzle 8 . As a pressure fluid,
It is convenient to use compressed air. Therefore, conduit 3
The optical fiber cable 4 that is being advanced is forced to be fed through the conduit 3 by the flow of pressure fluid.
【０００３】この布設方法において、光ファイバケーブ
ル４は、供給ドラム１から布設装置に送り込まれるため
、供給ドラムの回転量や送り込みローラーの回転量から
光ファイバケーブルの供給量を明確に把握することがで
きる。In this installation method, since the optical fiber cable 4 is fed from the supply drum 1 to the installation device, it is difficult to clearly grasp the amount of optical fiber cable supplied from the amount of rotation of the supply drum and the amount of rotation of the feed roller. can.
【０００４】また、この布設装置１によって、圧縮空気
とともに、光ファイバケーブル４は布設装置１に接続さ
れた管路３に供給され、管路内を進行して圧送される。
このため、布設装置１から反対側の開放端に至る管路全
長にわたって、圧縮空気を充分に挿通できなければ、光
ファイバケーブル４を送ることができないから、管路３
の内径と光ファイバケーブル４の外径との間に充分な空
間が必要である。例えば、上述した従来の方法において
は、光ファイバケーブルの外径が２ｍｍであるのに対し
、管路内径は６ｍｍ程度であり、管路内断面積の１／９
の断面積を有する光ファイバケーブルを挿通する例が示
されている。また、近年、国内で用いられている実例に
ついても同じような構造が標準的に用いられている。[0004] Also, by this installation device 1, the optical fiber cable 4 is supplied together with compressed air to a conduit 3 connected to the installation device 1, and is fed under pressure through the conduit. For this reason, unless compressed air can be sufficiently passed through the entire length of the conduit from the installation device 1 to the open end on the opposite side, the optical fiber cable 4 cannot be sent.
A sufficient space is required between the inner diameter of the optical fiber cable 4 and the outer diameter of the optical fiber cable 4. For example, in the conventional method described above, while the outer diameter of the optical fiber cable is 2 mm, the inner diameter of the conduit is approximately 6 mm, which is 1/9 of the internal cross-sectional area of the conduit.
An example is shown in which an optical fiber cable having a cross-sectional area of . Furthermore, in recent years, a similar structure has been used as a standard in actual cases used in Japan.
【０００５】ところが、このように広い空隙を有して管
路中に光ファイバケーブルが収納された場合、光ファイ
バケーブルが管路内で蛇行する現象が生じ、パイプケー
ブル長と挿入光ファイバケーブル長の不一致が生ずる。
例えば、２０００ｍのパイプケーブルの布設を行なった
場合、光ファイバケーブルが１％たるみを持ったとする
と、長さの差は２０ｍに達する。However, when an optical fiber cable is housed in a conduit with such a wide gap, a phenomenon occurs in which the optical fiber cable meanderes within the conduit, and the length of the pipe cable and the length of the inserted optical fiber cable are reduced. A discrepancy occurs. For example, when a 2000 m long pipe cable is installed, and if the optical fiber cable has 1% slack, the difference in length will reach 20 m.
【０００６】さらにこの不一致（以下余長と呼ぶ）は、
ビル内配線の垂直ルートなど昇りルートでは光ファイバ
ケーブルの重量のため大きくなる一方、逆に下りルート
では小さくなることが知られている。Furthermore, this discrepancy (hereinafter referred to as surplus length) is
It is known that on ascending routes such as vertical routes in buildings, the optical fiber cable becomes larger due to its weight, while on the contrary, descending routes become smaller.
【０００７】このように余長量が正確に測定できないた
め、供給量から光ファイバケーブルの圧送位置を知るこ
とができず、布設の際に、管路端から光ファイバケーブ
ルがいつ出てくるかを正確に予測することは困難であっ
た。[0007] Since the amount of excess length cannot be measured accurately, it is not possible to know the pumping position of the optical fiber cable from the amount of supply, and it is difficult to know when the optical fiber cable will come out from the end of the conduit during installation. It was difficult to predict accurately.
【０００８】したがって、
■ 布設終了前の光ファイバケーブルの送り込み速度
の制御を、安全を見て低速で行なわなければならず、必
要以上に時間がかかる。
■ 管路端付近に監視作業者を配置しておく必要とな
る。などの問題があった。Therefore, (1) the feeding speed of the optical fiber cable must be controlled at a low speed for safety reasons before the installation is completed, which takes more time than necessary. ■ It is necessary to station a monitoring worker near the end of the pipeline. There were other problems.
【０００９】さらに、余長量は光ファイバケーブルの蛇
行の程度に関連し、曲がりにより伝送損失が増える光フ
ァイバ伝送路の損失特性を決定する重要な因子にもかか
わらず、管路の各部での余長状態は全く不明で、全長平
均の余長量も布設終了後にしかわからないという不具合
があった。Furthermore, the amount of excess length is related to the degree of meandering of the optical fiber cable, and although it is an important factor that determines the loss characteristics of an optical fiber transmission line where transmission loss increases due to bending, the amount of excess length at each part of the conduit is There was a problem in that the state of the remaining length was completely unknown, and the average amount of remaining length over the entire length could only be known after the installation was completed.
【００１０】0010
【発明が解決しようとする課題】本発明は、上述の問題
点を解決するためになされたもので、布設中において、
管路内の光ファイバケーブルの位置を知ることができ、
また、余長の評価も可能な線材の布設方法を提供するこ
とを目的とするものである。[Problems to be Solved by the Invention] The present invention has been made to solve the above-mentioned problems.
You can know the location of the optical fiber cable in the conduit,
It is also an object of the present invention to provide a method for laying wire rods that allows evaluation of excess length.
【００１１】[0011]
【課題を解決するための手段】本発明は、あらかじめ布
設した管路に加圧流体を用いて線材を圧送する線材の布
設方法において、線材の一部を被検出部として、かつ、
管路周辺に前記被検出部を検出する検出器を設け、前記
検出器の検出出力に基づいて、前記線材の通過を検出す
ることを特徴とするものである。[Means for Solving the Problems] The present invention provides a wire laying method in which a pressurized fluid is used to forcefully feed a wire into a pre-installed pipe, in which a part of the wire is used as a detected part, and
A detector for detecting the detected portion is provided around the conduit, and passage of the wire is detected based on a detection output of the detector.
【００１２】線材の末端あるいは線材の途中あるいはそ
の両方を、一箇所以上の被検出部とすることができる。[0012] The end of the wire, the middle of the wire, or both can be used as one or more portions to be detected.
【００１３】被検出部の通過を検出して、圧送の中止、
圧送速度の変更、逆送による引き出しを行なうことがで
きる。[0013] Detecting the passage of the detected part and stopping the pressure feeding;
It is possible to change the pumping speed and withdraw by reverse feeding.
【００１４】[0014]
【作用】あらかじめ布設した管路に加圧流体を用いて線
材を圧送する線材の布設方法において、線材の一部を被
検出部として、かつ、管路周辺に前記被検出部を検出す
る検出器を設ける。例えば、線材の先端から一定区間お
きに線材に金属片を取り付けておき、これを管路の所定
位置に設けた金属探知器により検出して、線材の各部分
の通過時点を測定する。この測定値によって線材の速度
と余長を実測することができる。[Operation] A detector that uses a part of the wire as the detected part and detects the detected part around the conduit in a wire laying method that uses pressurized fluid to feed the wire into a pre-installed pipe. will be established. For example, metal pieces are attached to the wire at regular intervals from the tip of the wire, and these are detected by a metal detector installed at a predetermined position in the conduit to measure the time point at which each part of the wire passes. Using this measured value, the speed and extra length of the wire can be actually measured.
【００１５】これにより線材が、どの時点でどの位置を
どれだけの余長を持って移動しているかが評価でき、例
えば、さらに大きな余長が必要な場合には、管路入り口
の布設装置からの線材の送り込み量を増し、一方、余長
を小さくしたい場合は、逆に送り込み量を減らせばよい
。線材の移動速度を決める加圧流体の流量の制御によっ
ても同様の調整が可能である。[0015] Through this, it is possible to evaluate how much extra length the wire is moving at which point and at which position.For example, if a larger extra length is required, it can be measured from the laying device at the pipe entrance. If you want to increase the feeding amount of the wire rod and reduce the extra length, conversely, you can decrease the feeding amount. Similar adjustments can be made by controlling the flow rate of the pressurized fluid that determines the moving speed of the wire.
【００１６】また、出口から手前の一定距離の位置に検
出器を設け、この位置での線材の通過を検出し、以後の
線材の送り込み速度や送り込み量を調整することにより
、管路出口を出る線材の量を比較的容易に制御すること
ができる。さらに、この検出位置までは、線材の進行速
度を低下させる必要がないため、総布設時間の短縮が可
能である。[0016] Furthermore, a detector is provided at a position a certain distance before the outlet, detects the passing of the wire at this position, and adjusts the feeding speed and amount of the wire afterward, thereby preventing the wire from exiting the conduit outlet. The amount of wire can be controlled relatively easily. Furthermore, since there is no need to reduce the advancing speed of the wire up to this detection position, the total laying time can be shortened.
【００１７】また、線材に一定区間おきに被検出部を設
けて、管路の入り口付近での余長量を定期的に観察する
ことにより、線材の剛性が低い（蛇行が激しく余長が大
きい）とか、線材の剛性が高い（蛇行が少なく余長が小
さい）など、線材の異常の有無や、布設装置の異常を知
ることもできる。[0017] Furthermore, by providing detected parts on the wire at regular intervals and periodically observing the amount of excess length near the entrance of the pipe, it is possible to detect whether the wire has low rigidity (with severe meandering or large excess length). ), the rigidity of the wire is high (less meandering and small excess length), and the presence or absence of abnormalities in the wire, such as abnormalities in the laying equipment, can also be known.
【００１８】[0018]
【実施例】図１は、本発明の線材の布設方法の一実施例
の説明図である。図中、図３と同様な部分には同じ符号
を付して説明を省略する。９は磁性部材、１０は金属セ
ンサーである。Embodiment FIG. 1 is an explanatory diagram of an embodiment of the wire laying method of the present invention. In the figure, parts similar to those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted. 9 is a magnetic member, and 10 is a metal sensor.
【００１９】磁性部材９は、光ファイバケーブルの先端
から一定区間おきに光ファイバケーブルに取り付けられ
ている。金属センサー１０としては、電磁誘導型のセン
サーを用いた。金属センサー１０は、管路の所定位置に
設けられる。上述したように、金属センサーにより光フ
ァイバケーブルに取り付けられた磁性部材を検出して、
光ファイバケーブルの各部分の通過時点を測定すること
ができ、この測定値から光ファイバケーブルの速度が求
められ、光ファイバケーブルの供給量とから、余長を実
測することもできる。The magnetic members 9 are attached to the optical fiber cable at regular intervals from the tip of the optical fiber cable. As the metal sensor 10, an electromagnetic induction type sensor was used. The metal sensor 10 is provided at a predetermined position in the conduit. As mentioned above, a magnetic member attached to an optical fiber cable is detected by a metal sensor,
It is possible to measure the passing time of each section of the optical fiber cable, and from this measurement value the speed of the optical fiber cable can be determined, and from the amount of supply of the optical fiber cable, it is also possible to actually measure the remaining length.
【００２０】具体例について説明する。光ファイバケー
ブルとしては、外径２５０μｍの光ファイバの６心をナ
イロン樹脂により被覆して１ｍｍ径とし、さらに発泡ポ
リエチレンで被覆して外径２ｍｍの光ファイバケーブル
として製作したものを用いた。この光ファイバケーブル
の先端に、幅５ｍｍの鉄テープを巻き付け固定した。A specific example will be explained. The optical fiber cable used was one in which six cores of an optical fiber with an outer diameter of 250 μm were coated with nylon resin to have a diameter of 1 mm, and further coated with foamed polyethylene to produce an optical fiber cable with an outer diameter of 2 mm. An iron tape with a width of 5 mm was wrapped around the tip of this optical fiber cable and fixed.
【００２１】一方、ポリエチレン製の長さ３００ｍ、内
径６ｍｍの直線状の管路に５０ｍおきに、キーエンス社
製の電磁誘導型金属通過センサ（ＴＡ−３４０，ＴＡ−
３１０）を管路に隣接して設置した。On the other hand, electromagnetic induction metal passing sensors (TA-340, TA-
310) was installed adjacent to the conduit.
【００２２】図３で説明した布設装置を用いた図１の構
成において、光ファイバケーブルを４０ｍ／分の速度で
管路に送り込み、同時に５ｋｇ／ｃｍ２ の圧縮空気を
供給して、空気に乗せて光ファイバケーブルを挿通した
。
その結果、管路５０ｍ位置での通過時の光ファイバケー
ブルの供給量は５０．４ｍ、２００ｍ位置では２０１．
５ｍ、３００ｍ位置では３０２．５ｍと測定された。こ
の測定結果から、余長は約０．８％で、安定に挿通され
たことがわかった。この余長を制御するため、同じ条件
で圧送を開始し、管路上５０ｍの通過位置において、光
ファイバケーブル長５０．４ｍを測定した後、光ファイ
バケーブルの送り込み速度を２０ｍ／分としたところ、
ケーブル先端が管路上１００ｍ位置での供給ケーブル長
は１００．５ｍ、２００ｍ位置では、２００．８ｍ、３
００ｍ位置では、３０１．２ｍとなり、余長が０．４％
となった。したがって、先の例の１／２に余長を制限す
ることができた。In the configuration shown in FIG. 1 using the installation device explained in FIG. 3, the optical fiber cable is fed into the conduit at a speed of 40 m/min, and at the same time compressed air of 5 kg/cm2 is supplied to carry it on the air. Insert the fiber optic cable. As a result, the amount of optical fiber cable supplied when passing through the conduit at the 50 m position was 50.4 m, and at the 200 m position, the amount of optical fiber cable supplied was 20.1 m.
At the 5m and 300m positions, it was measured as 302.5m. The measurement results showed that the remaining length was approximately 0.8% and that the insertion was stable. In order to control this extra length, we started pressure feeding under the same conditions, measured the optical fiber cable length of 50.4 m at a passing position 50 m on the pipe, and then set the optical fiber cable feeding speed to 20 m/min.
The supply cable length is 100.5 m when the cable tip is located 100 m on the pipe, and 200.8 m when the cable tip is at 200 m.
At the 00m position, it is 301.2m, and the extra length is 0.4%.
It became. Therefore, the extra length could be limited to 1/2 of the previous example.
【００２３】図２は、本発明の線材の布設方法の他の実
施例の説明図である。図中、図３と同様な部分には同じ
符号を付して説明を省略する。１１は管路の透明部、１
２は光源、１３は受光器である。この実施例では、透明
部は、管路材質をアクリル樹脂とすることにより形成し
た。光源にはレーザー光を用い、受光器にはキーエンス
社製の光電スイッチ（ＰＳ−５８）を用いて、光電セン
サーを構成した。FIG. 2 is an explanatory diagram of another embodiment of the wire laying method of the present invention. In the figure, parts similar to those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted. 11 is the transparent part of the pipe, 1
2 is a light source, and 13 is a light receiver. In this example, the transparent portion was formed by using acrylic resin as the conduit material. A photoelectric sensor was constructed using a laser beam as a light source and a photoelectric switch (PS-58) manufactured by Keyence Corporation as a receiver.
【００２４】透明部１１は、管路出口側より１０ｍの位
置に２ｍｍ幅にわたり設け、図１で説明したと同様に、
光ファイバケーブルを４０ｍ／分の速度で管路に送り込
み、５ｋｇ／ｃｍ２ の圧縮空気により光ファイバケー
ブルの挿通を行なった。この状態で、光ファイバケーブ
ルを押し進め、光ファイバケーブル先端が、管路先端か
ら１０ｍの位置に達した時点で、光電センサーが遮ぎら
れ、このセンサーからの信号により送り込みローラーを
停止させた。この後、ケーブルカウンターで光ファイバ
ケーブルの供給量を制御しつつ、管路先端を観測しなが
ら、光ファイバケーブルを供給した。管路先端から接続
のための余長分として５０ｃｍ長の光ファイバケーブル
が供給された時点で、光ファイバケーブルと圧縮空気の
供給を停止した。これにより、４９０ｍの長さにわたっ
ては、挿通を布設装置に任せて最高速で送ることができ
、終了に至って初めて作業上の監視が必要となるため、
作業者の負担を大幅に軽減することができ、また、布設
中に速度を落としたりする必要がないため、高速で挿通
することができた。The transparent part 11 is provided over a width of 2 mm at a position 10 m from the conduit outlet side, and as explained in FIG.
The optical fiber cable was fed into the conduit at a speed of 40 m/min, and the optical fiber cable was inserted using compressed air of 5 kg/cm2. In this state, the optical fiber cable was pushed forward, and when the tip of the optical fiber cable reached a position 10 m from the tip of the conduit, the photoelectric sensor was blocked, and the feed roller was stopped by a signal from this sensor. After that, the optical fiber cable was supplied while controlling the supply amount of the optical fiber cable with a cable counter and observing the tip of the conduit. When a 50 cm long optical fiber cable was supplied from the tip of the conduit as an extra length for connection, the supply of the optical fiber cable and compressed air was stopped. As a result, over a length of 490 m, it is possible to leave the insertion to the laying equipment and send it at maximum speed, and only requires monitoring during the work until the end.
It was possible to significantly reduce the burden on the operator, and since there was no need to slow down the cable during installation, it was possible to insert the cable at high speed.
【００２５】なお、検出器としては、電磁誘導型センサ
ーや、光電型センサーに限らず、静電容量検出型センサ
、放射線を用いたセンサーなど、適宜の検出器を用いる
ことができる。線材の被検出部としては、センサーに応
じた部材や、塗料などを付着させるほか、先端部の検知
の場合などには、特別な手段を付加することなく、線材
自体を被検出部とすることができる。また、検出方法に
よっては、管路に手を加えずに検出できるものもあり、
既布設管路への光ファイバケーブルの挿通に際して、本
発明を簡単に適用することができる。Note that the detector is not limited to an electromagnetic induction sensor or a photoelectric sensor, but any suitable detector such as a capacitance detection sensor or a sensor using radiation can be used. As the part to be detected of the wire, in addition to attaching materials or paints depending on the sensor, in the case of detecting the tip, the wire itself can be used as the part to be detected without adding any special means. Can be done. Also, depending on the detection method, there are some that can be detected without modifying the pipe.
The present invention can be easily applied when inserting an optical fiber cable into an existing conduit.
【００２６】[0026]
【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、あらかじめ布設した管路に加圧流体を用いて
光ファイバケーブルなどの線材を圧送する布設方法にお
いて、管路中での線材の位置を知ることができ、布設終
了時点の確認ができる。また、余長の正確な評価を行な
うこともできるので、この線材の圧送による布設技術を
より信頼性の高いものにすることできる効果がある。Effects of the Invention As is clear from the above description, according to the present invention, in the installation method in which a pressurized fluid is used to forcefully feed a wire material such as an optical fiber cable into a pipe that has been laid in advance, The position of the wire can be known and the time when the installation is completed can be confirmed. In addition, since the excess length can be accurately evaluated, there is an effect that the laying technique by pressure feeding the wire rod can be made more reliable.
【００２７】さらに、これらの装置は自動化が容易であ
るから、省人化が図れ、作業コストの低減もなし得るも
のである。Furthermore, since these devices can be easily automated, it is possible to save labor and reduce operating costs.
【図１】図１は、本発明の線材の布設方法の一実施例の
説明図である。FIG. 1 is an explanatory diagram of an embodiment of the wire laying method of the present invention.
【図２】図１は、本発明の線材の布設方法の他の実施例
の説明図である。FIG. 2 is an explanatory diagram of another embodiment of the wire laying method of the present invention.
【図３】従来の布設装置の概略構成図である。FIG. 3 is a schematic configuration diagram of a conventional cable laying device.
１ 供給ドラム ２ 布設装置 ３ 管路 ４ 光ファイバケーブル ５ 圧力流体供給口 ６ 駆動装置 ７ 通信用線材の入口側のシール部 ９ 磁性部材 １０ 金属センサー 1 Supply drum 2 Laying equipment 3 Pipeline 4 Optical fiber cable 5 Pressure fluid supply port 6 Drive device 7 Seal part on the entrance side of communication wire 9 Magnetic member 10 Metal sensor
Claims (1)
用いて線材を圧送する線材の布設方法において、線材の
一部を被検出部として、かつ、管路周辺に前記被検出部
を検出する検出器を設け、前記検出器の検出出力に基づ
いて、前記線材の通過を検出することを特徴とする線材
の布設方法。[Claim 1] A wire installation method in which a pressurized fluid is used to force-feed a wire through a pre-installed pipe, in which a part of the wire is used as a detected part, and the detected part is detected around the pipe. 1. A method of laying a wire, comprising: providing a detector; and detecting passage of the wire based on a detection output of the detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2385191A JP2943346B2 (en) | 1991-01-25 | 1991-01-25 | How to lay wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2385191A JP2943346B2 (en) | 1991-01-25 | 1991-01-25 | How to lay wires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04240806A true JPH04240806A (en) | 1992-08-28 |
| JP2943346B2 JP2943346B2 (en) | 1999-08-30 |
Family
ID=12121926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2385191A Expired - Fee Related JP2943346B2 (en) | 1991-01-25 | 1991-01-25 | How to lay wires |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2943346B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09265013A (en) * | 1996-03-27 | 1997-10-07 | Cosmo Koki Co Ltd | Method for inserting optical cable |
| EP1843181A1 (en) * | 2006-04-03 | 2007-10-10 | British Telecommunications Public Limited Company | Cable installation |
| US8587327B2 (en) | 2007-12-28 | 2013-11-19 | British Telecommunications Public Limited Company | Cable installation using induction |
| US8720030B2 (en) | 2009-03-31 | 2014-05-13 | British Telecommunications Public Limited Company | Blown cable apparatus and method |
| US8775102B2 (en) | 2009-03-19 | 2014-07-08 | British Telecommunications Public Limited Company | Passive remote detection of gas flow and cable arrival |
-
1991
- 1991-01-25 JP JP2385191A patent/JP2943346B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09265013A (en) * | 1996-03-27 | 1997-10-07 | Cosmo Koki Co Ltd | Method for inserting optical cable |
| EP1843181A1 (en) * | 2006-04-03 | 2007-10-10 | British Telecommunications Public Limited Company | Cable installation |
| WO2007113544A1 (en) * | 2006-04-03 | 2007-10-11 | British Telecommunications Public Limited Company | Cable installation detection |
| US9762039B2 (en) | 2006-04-03 | 2017-09-12 | British Telecommunications Public Limited Company | Cable installation detection |
| US8587327B2 (en) | 2007-12-28 | 2013-11-19 | British Telecommunications Public Limited Company | Cable installation using induction |
| US8775102B2 (en) | 2009-03-19 | 2014-07-08 | British Telecommunications Public Limited Company | Passive remote detection of gas flow and cable arrival |
| US8720030B2 (en) | 2009-03-31 | 2014-05-13 | British Telecommunications Public Limited Company | Blown cable apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2943346B2 (en) | 1999-08-30 |
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| LAPS | Cancellation because of no payment of annual fees |