JP2000104325A - Fixture of optical fiber cable to inside of pipe - Google Patents
Fixture of optical fiber cable to inside of pipeInfo
- Publication number
- JP2000104325A JP2000104325A JP29452198A JP29452198A JP2000104325A JP 2000104325 A JP2000104325 A JP 2000104325A JP 29452198 A JP29452198 A JP 29452198A JP 29452198 A JP29452198 A JP 29452198A JP 2000104325 A JP2000104325 A JP 2000104325A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- optical fiber
- fixture
- fiber cable
- curved plate
- 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.)
- Pending
Links
Classifications
-
- 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
- H02G1/088—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 devices movable inside conduits
-
- 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
Landscapes
- Sewage (AREA)
- Electric Cable Installation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、下水管などの既設
管に光ファイバーケーブルを通して取付ける場合に好適
に使用される取付具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture suitably used for attaching an existing pipe such as a sewer pipe through an optical fiber cable.
【０００２】[0002]
【従来の技術】近年、下水管など利用して光ファイバー
ケーブルを敷設しようとする試みがなされており、これ
に対応すべく、図６に示すような光ファイバーケーブル
通線用の下水管１０１が提案された（特開平１０−１１
０４６４号）。2. Description of the Related Art In recent years, attempts have been made to lay an optical fiber cable using a sewer pipe or the like, and in response to this, a sewer pipe 101 for passing an optical fiber cable as shown in FIG. 6 has been proposed. (Japanese Patent Laid-Open No. 10-11)
0464).
【０００３】この下水管１０１は、管の中心より上側の
内面に左右一対のケーブル支持用リブ１０２，１０２を
突設し、管内に挿通した光ファイバーケーブル１０３，
１０３を支持用リブ１０２，１０２で支えて管内の上部
に取付けるものである。The sewer pipe 101 has a pair of left and right cable supporting ribs 102, 102 projecting from an inner surface above the center of the pipe, and an optical fiber cable 103, 102 inserted through the pipe.
103 is supported by supporting ribs 102 and 102 and attached to the upper part of the pipe.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、既設の
下水管を上記の光ファイバーケーブル通線用の下水管１
０１に交換して光ファイバーケーブルを敷設するのは大
変であるため、既設の下水管に光ファイバーケーブルを
通して管内の上部に取付けることができる簡易な取付具
が要望されている。However, the existing sewer pipe is connected to the sewer pipe 1 for passing the optical fiber cable.
Since it is difficult to lay an optical fiber cable after replacing the existing sewer pipe with a new one, there is a demand for a simple fitting that can be attached to the existing sewer pipe through the optical fiber cable and attached to the upper part of the pipe.
【０００５】本発明は、かかる要望に応えられる取付具
の提供を目的としている。[0005] It is an object of the present invention to provide a fixture which can meet such a demand.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１に係る光ファイバーケーブルの取
付具は、管内面のほぼ上半周に圧接して固定される取付
具であって、管内面の上半周より少し長い略半環状のバ
ネ板の中央に、光ファイバーケーブル支持用の凹曲部が
形成されており、該凹曲部の両側の湾曲板部は、その下
端間の間隔が管の内径より大きくなるように両外側へ拡
開されていると共に、該湾曲板部の曲率半径が実質的に
管の内径の１／２に設定されていることを特徴とするも
のである。According to a first aspect of the present invention, there is provided an optical fiber cable fixture which is fixed by being pressed against substantially the upper half of the inner surface of a tube. A concave portion for supporting an optical fiber cable is formed in the center of a substantially semi-annular spring plate slightly longer than the upper half circumference of the inner surface of the tube, and the curved plate portions on both sides of the concave portion have an interval between their lower ends. It is characterized in that it is widened outward on both sides so as to be larger than the inside diameter of the tube, and that the radius of curvature of the curved plate portion is set to substantially one half of the inside diameter of the tube.
【０００７】このような構成の取付具は、略半環状バネ
板の凹曲部両側の湾曲板部が内側へ押圧され、該湾曲板
部の下端間の間隔が管の内径より小さくなるように縮径
されたまま、施工ロボットなどで管内の所定位置まで挿
入される。そのとき、バネ板中央の凹曲部には、管内に
挿通した光ファイバーケーブルが載置される。そして管
内の所定位置において湾曲板部の押圧が解除されると、
バネ板の弾性復元力で双方の湾曲板部が両側へ拡開して
管内面のほぼ上半周に圧接し、湾曲板部が管内面に沿っ
て隙間なくぴったりと密着した状態で取付具が固定さ
れ、その中央の凹曲部で光ファイバーケーブルが支持さ
れて管内の上部に取付けられる。[0007] In the mounting device having such a configuration, the curved plate portions on both sides of the concave curved portion of the substantially semi-annular spring plate are pressed inward, and the interval between the lower ends of the curved plate portions is smaller than the inner diameter of the tube. While the diameter is reduced, it is inserted to a predetermined position in the pipe by a construction robot or the like. At that time, the optical fiber cable inserted into the tube is placed in the concave curved portion at the center of the spring plate. And when the pressing of the curved plate portion is released at a predetermined position in the pipe,
With the elastic restoring force of the spring plate, both curved plate parts expand to both sides and press against almost the upper half of the inner surface of the tube, and the mounting fixture is fixed in a state where the curved plate portion is in tight contact with the inner surface of the tube without gaps The optical fiber cable is supported by the concave portion at the center thereof and is attached to the upper part in the tube.
【０００８】また、本発明の請求項２に係る光ファイバ
ーケーブルの取付具は、上記請求項１の取付具におい
て、その湾曲板部から安定翼片が前後に突設されている
ことを特徴とするものである。According to a second aspect of the present invention, there is provided an optical fiber cable fixture according to the first aspect, wherein a stable wing piece protrudes forward and backward from the curved plate portion. Things.
【０００９】このような構成の取付具は、安定翼片が管
軸方向に沿って管内面に当接し、取付具の湾曲板部が管
軸方向に対して前後に傾斜した姿勢となるのを防止する
ため、取付具の安定性が向上する。[0009] In the fixture having such a configuration, the stabilizing blade piece abuts on the inner surface of the pipe along the pipe axis direction, and the curved plate portion of the fixture has a posture inclined forward and backward with respect to the pipe axis direction. To prevent this, the stability of the fixture is improved.
【００１０】更に、本発明の請求項３に係る光ファイバ
ーケーブルの取付具は、上記請求項１，２の取付具にお
いて、その湾曲板部の外面に、管内面に食い込む尖った
突起が形成されていることを特徴とするものである。According to a third aspect of the present invention, there is provided the optical fiber cable fixture according to the first and second aspects, wherein the curved plate portion has an outer surface formed with a sharp projection that bites into the inner surface of the tube. It is characterized by having.
【００１１】このような構成の取付具は、湾曲板部の外
面に形成された突起が管内面に食い込むため、管内を流
れる排水によって取付具が管軸方向に移動する心配がな
くなり、また、取付具の傾斜も防止される。In the mounting device having such a configuration, the projection formed on the outer surface of the curved plate portion cuts into the inner surface of the tube, so that the mounting device does not have to worry about moving in the axial direction of the pipe due to drainage flowing in the tube. The inclination of the tool is also prevented.
【００１２】[0012]
【発明の実施の形態】以下、図面を参照して本発明の具
体的な実施形態を詳述する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
【００１３】図１は本発明の一実施形態に係る光ファイ
バーケーブルの取付具の斜視図、図２は同取付具の使用
状態を説明する断面図、図３は図２のＡ−Ａ線拡大部分
断面図である。FIG. 1 is a perspective view of a fixture for an optical fiber cable according to an embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating the use of the fixture, and FIG. It is sectional drawing.
【００１４】この光ファイバーケーブルの取付具１は、
管２の内面の上半周より少し長い略半環状のバネ板から
成るもので、その中央には光ファイバーケーブル３を支
持するための凹曲部１ａが形成されている。そして、こ
の凹曲部１ａの両側へ延びる湾曲板部１ｂ，１ｂは、そ
の下端間の間隔Ｗが管２の内径より大きくなるように両
外側へ拡開されている。これら湾曲板部１ｂ，１ｂの曲
率半径は、実質的に管２の内径の１／２に設定され、管
内に固定されたときに湾曲板部１ｂ，１ｂが管内面と隙
間なく密着できるようになっている。The fixture 1 of this optical fiber cable is
It is formed of a substantially semi-annular spring plate slightly longer than the upper half circumference of the inner surface of the tube 2, and has a concave portion 1 a formed at the center thereof for supporting the optical fiber cable 3. The curved plate portions 1b, 1b extending to both sides of the concave curved portion 1a are expanded to both outsides so that the interval W between the lower ends thereof is larger than the inner diameter of the tube 2. The radii of curvature of these curved plate portions 1b, 1b are substantially set to の of the inner diameter of the tube 2 so that when fixed in the tube, the curved plate portions 1b, 1b can be in close contact with the inner surface of the tube without any gap. Has become.
【００１５】取付具１を構成するバネ板としては、防錆
処理を施したバネ鋼やステンレスなどの錆びにくい金属
板が適しており、板厚が１ｍｍ以下の薄いものが好まし
く使用される。１ｍｍより厚いバネ板からなる取付具１
を管内に装着すると、管内を流れる排水に含まれる固形
物が取付具１の湾曲板部１ｂ，１ｂに引掛かり、管詰ま
りの原因となる恐れがあるので好ましくない。また、図
３に示すように、バネ板の湾曲板部１ｂの両側面１ｃ，
１ｃを傾斜面に形成すると、固形物が引掛かり難くな
り、管詰まりをほぼ完全に防止できる利点があるので好
ましい。As the spring plate constituting the fixture 1, a rust-proof metal plate such as spring steel or stainless steel which has been subjected to rust prevention is suitable, and a thin plate having a plate thickness of 1 mm or less is preferably used. Mounting device 1 made of a spring plate thicker than 1 mm
Is not preferable because solid matter contained in the drainage flowing in the pipe may get caught on the curved plate portions 1b, 1b of the fixture 1 and cause clogging of the pipe. Further, as shown in FIG. 3, both side surfaces 1c of the curved plate portion 1b of the spring plate,
Forming 1c on an inclined surface is preferred because it has the advantage that solids are less likely to be caught and clogging of the tube can be almost completely prevented.
【００１６】この略半環状のバネ板からなる取付具１
は、既述したように管内面の上半周よりも少し長く形成
し、管内の上半周に装着したときに双方の湾曲板部１
ｂ，１ｂの下端が管２の中心より少し下側に位置するよ
うに構成することが必要である。取付具１の長さが管内
面の上半周より短い場合は、双方の湾曲板部１ｂ，１ｂ
が弾性復元力で拡開し、その下端が管２の中心と同じ高
さになるまで取付具１の装着位置が下がるので、湾曲板
部１ｂ，１ｂと管内面の間に大きい隙間が生じ、取付具
１の安定性が大幅に損なわれることになるが、上記のご
とく湾曲板部１ｂ，１ｂの下端が管２の中心より少し下
側に位置するように取付具１の長さが管内面の上半周よ
りも少し長く形成されていると、取付具１の装着位置が
下がることなく、弾性復元力で湾曲板部１ｂ，１ｂが管
内面にぴったりと密着して圧接するため、取付具１を安
定良く装着することができる。A mounting member 1 comprising a substantially semi-annular spring plate.
Is formed slightly longer than the upper half circumference of the inner surface of the pipe as described above, and when mounted on the upper half circumference of the pipe, both curved plate portions 1 are formed.
It is necessary that the lower ends of b and 1b be located slightly below the center of the tube 2. When the length of the fixture 1 is shorter than the upper half circumference of the inner surface of the tube, both the curved plate portions 1b, 1b
Is expanded by the elastic restoring force, and the mounting position of the fixture 1 is lowered until the lower end thereof is at the same height as the center of the pipe 2, so that a large gap is generated between the curved plate portions 1b, 1b and the pipe inner surface, Although the stability of the fixture 1 is greatly impaired, the length of the fixture 1 is set such that the lower ends of the curved plate portions 1b, 1b are located slightly below the center of the tube 2 as described above. Is formed slightly longer than the upper half circumference of the fitting 1, the mounting position of the fitting 1 is not lowered, and the curved plate portions 1 b, 1 b are brought into close contact with the inner surface of the pipe and pressed against the inner surface of the pipe by elastic restoring force. Can be stably mounted.
【００１７】この取付具１のバネ板の巾は特に限定され
ないが、管２の内径の１／１５〜１／２程度の巾とする
ことが好ましい。バネ板の巾が管の内径の１／１５より
狭くなると、取付具１が管軸方向に対して前後に傾斜し
やすくなって安定性が損なわれる心配があり、一方、管
の内径の１／２より広くなると、バネ板の使用量が増大
してコスト高となる。The width of the spring plate of the fixture 1 is not particularly limited, but is preferably about 1/15 to 1/2 of the inner diameter of the tube 2. If the width of the spring plate is smaller than 1/15 of the inner diameter of the tube, the mounting fixture 1 is likely to be tilted back and forth with respect to the axial direction of the tube, and the stability may be impaired. If it is wider than 2, the amount of use of the spring plate increases and the cost increases.
【００１８】以上のような構成の取付具１は、既設の下
水管、特に、管径が３０ｃｍ以下の塩化ビニル樹脂管や
ポリエチレン樹脂管に光ファイバーケーブルを通して取
付ける場合に好適なものであり、次の要領で使用され
る。The fixture 1 having the above structure is suitable for attaching an existing sewer pipe, particularly a vinyl chloride resin pipe or a polyethylene resin pipe having a pipe diameter of 30 cm or less, through an optical fiber cable. Used in the same way.
【００１９】まず、取付具１の双方の湾曲板部１ｂ，１
ｂを内側へ押圧して、その下端間の間隔Ｗが管２の内径
より小さくなるように縮径し、管内に挿通された光ファ
イバーケーブル３を凹曲部１ａに載せた状態で、該取付
具１を施工ロボットにより管内へ挿入する。そして、取
付具１が管内の所定位置に達すると、湾曲板部１ｂ，１
ｂの押圧を解除する。このように押圧を解除すると、バ
ネ板の弾性復元力で双方の湾曲板部１ｂ，１ｂが両側へ
拡開して管内面のほぼ上半周に圧接し、湾曲板部１ｂ，
１ｂが管２の内面に沿って隙間なくぴったりと密着した
状態で取付具１が固定され、その中央の凹曲部１ａで光
ファイバーケーブル３が支持されて管内の上部に取付け
られる。First, both curved plate portions 1b, 1 of the fixture 1 are provided.
b is pressed inward, the diameter of the lower end is reduced so that the distance W between the lower ends thereof is smaller than the inner diameter of the tube 2, and the optical fiber cable 3 inserted into the tube is placed on the concave bending portion 1a. 1 is inserted into the pipe by the construction robot. When the fixture 1 reaches a predetermined position in the pipe, the curved plate portions 1b, 1
Release the pressing of b. When the pressing is released in this manner, both the curved plate portions 1b, 1b are expanded to both sides by the elastic restoring force of the spring plate, and are brought into pressure contact with substantially the upper half of the inner surface of the tube, so that the curved plate portions 1b, 1b are pressed.
The fixture 1 is fixed in a state where 1b is tightly adhered along the inner surface of the tube 2 without any gap, and the optical fiber cable 3 is supported by the concave portion 1a at the center thereof, and is attached to the upper part in the tube.
【００２０】この取付具１は、上記のように双方の湾曲
板部１ｂ，１ｂの弾性復元力を利用して圧接固定するも
のであるが、場合によっては、取付具１の湾曲板部１
ｂ，１ｂを接着剤で管内面に接着してもよい。このよう
に接着すると、取付具１の固定強度が大幅に向上する利
点がある。As described above, the mounting fixture 1 is fixed by pressing using the elastic restoring force of the two curved plate portions 1b, 1b.
b and 1b may be adhered to the inner surface of the tube with an adhesive. Adhesion in this manner has the advantage of significantly improving the fixing strength of the fixture 1.
【００２１】図４は本発明の他の実施形態に係る光ファ
イバーケーブルの取付具の斜視図、図５は同取付具の使
用状態を説明する縦断面図である。FIG. 4 is a perspective view of a fixture for an optical fiber cable according to another embodiment of the present invention, and FIG. 5 is a longitudinal sectional view for explaining a use state of the fixture.
【００２２】この取付具１０は、バネ板の巾を狭くし、
双方の湾曲板部１ｂ，１ｂの上端近くから安定翼片５，
５を前後に突設すると共に、湾曲板部１ｂ，１ｂの上端
部外面の前縁及び後縁に沿って、先端が尖った三角歯状
の複数の突起１ｅを形成したものである。その他の構成
は前述した取付具１と同様であるので、説明を省略す
る。This mounting device 10 reduces the width of the spring plate,
Near the upper ends of both curved plate portions 1b, 1b,
5, a plurality of triangular teeth-like projections 1e having a sharp tip are formed along the front and rear edges of the outer surfaces of the upper ends of the curved plate portions 1b, 1b. The other configuration is the same as that of the above-described attachment 1, and the description is omitted.
【００２３】このような構成の取付具１０を、前記取付
具１と同様に湾曲板部１ｂ，１ｂを管内面に圧接させて
管２のほぼ上半周に装着すると、図５に示すように安定
翼片１ｄが管軸方向に沿って管２の内面に当接するた
め、取付具１０の湾曲板部１ｂが一点鎖線で示すように
管軸方向に対して前後に傾斜した姿勢となるのを防止す
ることが可能になり、取付具１０の安定性が大幅に向上
する。そして、複数の突起１ｅが管２の内面に食い込ん
で取付具１０が固定されるため、管内を流れる排水によ
って取付具１０が管軸方向に移動する心配も解消され
る。As shown in FIG. 5, when the fitting 10 having such a structure is mounted on the upper half of the pipe 2 by pressing the curved plate portions 1b, 1b against the inner surface of the pipe in the same manner as the mounting 1, the fitting is stable. Since the wing piece 1d abuts on the inner surface of the pipe 2 along the pipe axis direction, the curved plate portion 1b of the fixture 10 is prevented from being inclined forward and backward with respect to the pipe axis direction as shown by a dashed line. And the stability of the fixture 10 is greatly improved. Further, since the plurality of protrusions 1e bite into the inner surface of the pipe 2 and the fixture 10 is fixed, the fear that the fixture 10 moves in the pipe axis direction due to drainage flowing in the pipe is also eliminated.
【００２４】この実施形態の取付具１０では、安定翼片
１ｄを双方の湾曲板部１ｂ，１ｂの上端近くにのみ形成
しているが、更に湾曲板部１ｂ，１ｂの中央部や下端近
くにも形成して取付具１０の安定性をより一層高めるよ
うにしてもよい。また、この実施形態では突起１ｅを湾
曲板部１ｂ，１ｂの上端部外面のみに形成しているが、
突起１ｅの形成箇所は湾曲板部１ｂ，１ｂの外面であれ
ばどこでもよく、上端部の外面に限定されるものではな
い。また、場合によっては、安定翼片１ｄの外面（上
面）に突起１ｅを形成してもよい。In the fixture 10 of this embodiment, the stabilizing wing pieces 1d are formed only near the upper ends of the curved plates 1b, 1b, but further near the center and lower ends of the curved plates 1b, 1b. May also be formed to further enhance the stability of the fixture 10. In this embodiment, the protrusion 1e is formed only on the outer surface of the upper end of the curved plate portion 1b.
The projection 1e may be formed anywhere on the outer surface of the curved plate portions 1b, 1b, and is not limited to the outer surface of the upper end. In some cases, a protrusion 1e may be formed on the outer surface (upper surface) of the stable wing piece 1d.
【００２５】[0025]
【発明の効果】以上の説明から明らかなように、本発明
の光ファイバーケーブルの取付具は、管内のほぼ上半周
に安定良く且つ簡単に装着することができ、その凹曲部
で光ファイバーケーブルを支持して管内の上部に取付け
ることができるといった顕著な効果を奏し、また、構造
がシンプルであるため安価に量産できるといった効果も
奏する。As is apparent from the above description, the optical fiber cable mounting device of the present invention can be stably and easily mounted on almost the upper half of the inside of the tube, and the concave fiber portion supports the optical fiber cable. It has a remarkable effect that it can be attached to the upper part in the pipe, and also has the effect that it can be mass-produced at low cost because of its simple structure.
【図１】本発明の一実施形態に係る光ファイバーケーブ
ルの取付具の斜視図である。FIG. 1 is a perspective view of a fixture for an optical fiber cable according to an embodiment of the present invention.
【図２】同取付具の使用状態を説明する断面図である。FIG. 2 is a cross-sectional view illustrating a use state of the attachment.
【図３】図２のＡ−Ａ線拡大部分断面図である。FIG. 3 is an enlarged partial sectional view taken along line AA of FIG. 2;
【図４】本発明の他の実施形態に係る光ファイバーケー
ブルの取付具の斜視図である。FIG. 4 is a perspective view of a fixture for an optical fiber cable according to another embodiment of the present invention.
【図５】同取付具の使用状態を説明する縦断面図であ
る。FIG. 5 is a longitudinal sectional view for explaining a use state of the attachment.
【図６】従来の光ファイバーケーブル通線用の下水管の
横断面図である。FIG. 6 is a cross-sectional view of a conventional sewer pipe for optical fiber cable passage.
１，１０ 光ファイバーケーブルの取付具 １ａ 凹曲部 １ｂ 湾曲板部 １ｄ 安定翼片 １ｅ 突起 ２ 管 ３ 光ファイバーケーブル 1,10 Optical fiber cable fixture 1a Concave curved portion 1b Curved plate portion 1d Stable wing piece 1e Projection 2 Tube 3 Optical fiber cable
Claims (3)
取付具であって、管内面の上半周より少し長い略半環状
のバネ板の中央に、光ファイバーケーブル支持用の凹曲
部が形成されており、該凹曲部の両側の湾曲板部は、そ
の下端間の間隔が管の内径より大きくなるように両外側
へ拡開されていると共に、該湾曲板部の曲率半径が実質
的に管の内径の１／２に設定されていることを特徴とす
る、管内への光ファイバーケーブルの取付具。1. A fitting which is fixed by being pressed against substantially the upper half of the inner surface of a tube, wherein a concave portion for supporting an optical fiber cable is provided at the center of a substantially semi-annular spring plate slightly longer than the upper half of the inner surface of the tube. Are formed, and the curved plate portions on both sides of the concave curved portion are expanded to both outer sides so that the interval between the lower ends thereof is larger than the inner diameter of the pipe, and the radius of curvature of the curved plate portion is A fitting for an optical fiber cable in a pipe, characterized in that it is set to substantially one half of the inner diameter of the pipe.
れていることを特徴とする請求項１に記載の取付具。2. The fixture according to claim 1, wherein a stabilizing wing is projected forward and backward from the curved plate portion.
尖った突起が形成されていることを特徴とする請求項１
又は請求項２に記載の取付具。3. The curved plate portion has an outer surface formed with a sharp projection that cuts into the inner surface of the tube.
Or the fixture according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29452198A JP2000104325A (en) | 1998-09-30 | 1998-09-30 | Fixture of optical fiber cable to inside of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29452198A JP2000104325A (en) | 1998-09-30 | 1998-09-30 | Fixture of optical fiber cable to inside of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000104325A true JP2000104325A (en) | 2000-04-11 |
Family
ID=17808866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29452198A Pending JP2000104325A (en) | 1998-09-30 | 1998-09-30 | Fixture of optical fiber cable to inside of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000104325A (en) |
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|---|---|---|---|---|
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| JP2002257257A (en) * | 2001-02-27 | 2002-09-11 | Okayama City | Sticking and fixing method of sheath pipe to bottom of inner surface of existing duct, and material for sticking and fixing |
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| EP1868020A1 (en) * | 2006-06-15 | 2007-12-19 | Sogetrel | Method and device for installation of cables and tubes in non visitable canalisations |
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1998
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002013345A1 (en) * | 2000-08-07 | 2002-02-14 | Ashimori Industry Co., Ltd. | Method and structure for laying communication cable in underground line, and members used for laying |
| EP1309054A1 (en) * | 2000-08-07 | 2003-05-07 | Ashimori Industry Co., Ltd. | Method and structure for laying communication cable in underground line, and members used for laying |
| EP1309054A4 (en) * | 2000-08-07 | 2005-07-20 | Ashimori Ind Co Ltd | Method and structure for laying communication cable in underground line, and members used for laying |
| US7179019B2 (en) | 2000-08-07 | 2007-02-20 | Ashimori Industry Co., Ltd. | Method and structure for laying communication cable in underground line, and members used for laying |
| CN100391070C (en) * | 2000-08-07 | 2008-05-28 | 芦森工业株式会社 | Method and structure for laying communication cable in underground line, and members used for laying |
| JP2002257257A (en) * | 2001-02-27 | 2002-09-11 | Okayama City | Sticking and fixing method of sheath pipe to bottom of inner surface of existing duct, and material for sticking and fixing |
| FR2830069A1 (en) * | 2001-09-27 | 2003-03-28 | Cit Alcatel | Cable fixing device used in pipes, ducts, has hoops secured together by flexible longitudinal support and are interconnected by flexible membrane along longitudinal axis of cavity |
| EP1298373A1 (en) * | 2001-09-27 | 2003-04-02 | Alcatel | Device for fastening a tubular element in an inaccessible cavity |
| US6604549B2 (en) | 2001-09-27 | 2003-08-12 | Alcatel | Device for fixing a tubular element in an inaccessible cavity |
| WO2007144523A1 (en) * | 2006-06-15 | 2007-12-21 | Sogetrel | Method and device for installing cables and jackets in a non-inspectable pipe |
| FR2902484A1 (en) * | 2006-06-15 | 2007-12-21 | Sogetrel Sa | "METHOD FOR INSTALLING CABLES, SHEATHES AND ANALOGUES IN AN UNAVAILABLE CANALIZATION AND DEVICE FOR ITS IMPLEMENTATION" |
| EP1868020A1 (en) * | 2006-06-15 | 2007-12-19 | Sogetrel | Method and device for installation of cables and tubes in non visitable canalisations |
| JP2008032099A (en) * | 2006-07-27 | 2008-02-14 | Yamakoshi:Kk | Regeneration method for existing pipe and tool for regenerating existing pipe |
| JP2008067455A (en) * | 2006-09-06 | 2008-03-21 | Sekisui Chem Co Ltd | Cable protection tube |
| FR2931217A1 (en) * | 2008-05-13 | 2009-11-20 | Sogetrel Soc Par Actions Simpl | DEVICE FOR MAINTAINING A LONGILINE BODY AGAINST THE WALL OF A PIPE |
| WO2009147354A1 (en) * | 2008-05-13 | 2009-12-10 | Sogetrel | Device for holding a longilineal body against the wall of a pipe |
| KR200471115Y1 (en) | 2011-10-26 | 2014-02-06 | 삼성중공업 주식회사 | Cable Pipe |
| WO2016057047A1 (en) * | 2014-10-10 | 2016-04-14 | Halliburton Energy Services, Inc. | Manufacturing method for enhanced acoustic sensing system |
| KR20190112071A (en) * | 2017-02-03 | 2019-10-02 | 소레탄체 프레씨네트 | Structural Cable with Inner Housing |
| KR102617758B1 (en) | 2017-02-03 | 2023-12-26 | 소레탄체 프레씨네트 | Structured cable with internal housing |
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