JP5567917B2 - Cable conduit - Google Patents

Cable conduit Download PDF

Info

Publication number
JP5567917B2
JP5567917B2 JP2010148834A JP2010148834A JP5567917B2 JP 5567917 B2 JP5567917 B2 JP 5567917B2 JP 2010148834 A JP2010148834 A JP 2010148834A JP 2010148834 A JP2010148834 A JP 2010148834A JP 5567917 B2 JP5567917 B2 JP 5567917B2
Authority
JP
Japan
Prior art keywords
fitting portion
tube forming
fitting
locking arm
forming members
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.)
Expired - Fee Related
Application number
JP2010148834A
Other languages
Japanese (ja)
Other versions
JP2012016121A (en
Inventor
英樹 柏村
Original Assignee
株式会社土井製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社土井製作所 filed Critical 株式会社土井製作所
Priority to JP2010148834A priority Critical patent/JP5567917B2/en
Publication of JP2012016121A publication Critical patent/JP2012016121A/en
Application granted granted Critical
Publication of JP5567917B2 publication Critical patent/JP5567917B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

本発明は、ビル、建物等の建築構造物内に例えば洞道部、人孔部等から引込配線される光ファイバーケーブル等の各種のケーブル類を例えば地中に埋設するためのケーブル用導管に関する。   The present invention relates to a cable conduit for embedding various cables such as optical fiber cables drawn into a building structure such as a building or a building from, for example, a cave portion or a manhole portion.

従来、洞道部、人孔部等から各種の建築構造物内に通信ケーブル等を引込配線する場合、洞道部、人孔部等は地下に設置されているために、浸入する雨水その他に対する防水、排水処理が施される。この場合、光ファイバーケーブル等の各種のケーブル類は、当該ケーブル類を保護しながら区分通線するためのフレキシブルな鞘管に挿入されており、ケーブル類を挿入した鞘管の現場での敷設施工に際し、この鞘管を複数に纏めて収納させて保護するための外管に挿入されて地中に配管設置される。このケーブル類を収容する複数の鞘管、鞘管を挿入する外管それぞれは、可撓性を有するように例えばPVC・PE・PP・ABSその他の合成樹脂素材、または金属製素材による複合管構造としてある。   Conventionally, when communication cables, etc. are drawn into various building structures from caves, manholes, etc., since the caverns, manholes, etc. are installed underground, they can prevent rainwater from entering. Waterproof and drainage treatment is applied. In this case, various types of cables such as optical fiber cables are inserted into flexible sheath pipes that are routed through sections while protecting the cables, so that the sheath pipes into which the cables are inserted are laid on site. The sheath tube is inserted into a plurality of outer tubes to be housed and protected and installed in the ground. A plurality of sheath pipes for accommodating these cables and an outer pipe into which the sheath pipes are inserted are each made of, for example, PVC, PE, PP, ABS, other synthetic resin materials, or composite tube structures made of metal materials so as to have flexibility. It is as.

この種のケーブル用導管およびその製造方法として、これを合成樹脂にて形成するものとするとき、例えば特許文献1に開示されているように、一側端部に縦断面二股状の嵌合部が設けられ、他側端部に縦断面矢尻状の係止部が設けられた熱可塑性樹脂製のプロファイルをマンドレル上に螺旋状に供給巻回し、相隣る一方のプロファイルの嵌合部と他方のプロファイルの係止部とを係合させることにより螺旋管を製造する螺旋管の製造方法において、マンドレルの外径を拡大もしくは縮小させることによりマンドレルの外径に対応した口径を備えた螺旋管を製造する螺旋管の製造方法およびその装置が存在する。   As this type of cable conduit and its manufacturing method, when it is formed of a synthetic resin, for example, as disclosed in Patent Document 1, a fitting portion having a bifurcated vertical cross section at one end portion A profile made of a thermoplastic resin having a vertical cross-sectional arrowhead-shaped locking portion provided at the other end is spirally supplied and wound on a mandrel, and the fitting portion of one profile adjacent to the other and the other In the method of manufacturing a spiral tube by manufacturing the spiral tube by engaging with the locking portion of the profile, a spiral tube having a diameter corresponding to the outer diameter of the mandrel is obtained by expanding or reducing the outer diameter of the mandrel. There exists a manufacturing method and apparatus for a helical tube to be manufactured.

また、特許文献2に開示されているように、一側縁の縦断面二股状の嵌合部と他側縁の縦断面矢尻状の係止部と縦断面直線状の中央部とからなる合成樹脂製のプロファイルを螺旋状に巻回し、この巻回状態において互いに隣合う嵌合部の中に係止部が挿入され、このとき係止部が嵌合部先端に形成された抜止部によって係止されるものとした螺旋管の製造方法が存在する。   Further, as disclosed in Patent Document 2, a composite portion composed of a fitting portion having a bifurcated cross section on one side edge, a locking portion having a vertical cross section on the other side edge, and a central portion having a straight vertical section. A resin profile is spirally wound, and in this winding state, a locking portion is inserted into the fitting portions adjacent to each other. At this time, the locking portion is engaged by a retaining portion formed at the tip of the fitting portion. There exists a method of manufacturing a helical tube that is to be stopped.

また、特許文献3に開示されているように、帯状のプロファイルを螺旋状に巻き付け、隣接する縦断面二股状の嵌合部と、係止部先端の係止突起とを嵌合係止することによって螺旋管を形成する螺旋管形成用帯状体およびその成形方法が存在する。   Further, as disclosed in Patent Document 3, a belt-like profile is wound in a spiral shape, and the adjacent fitting portion having a bifurcated vertical cross section and the locking protrusion at the tip of the locking portion are fitted and locked. There exists a strip for forming a spiral tube and a method for forming the same.

また、特許文献4に開示されているように、縦断面二股状で且つ開口端内縁に抜止部が対設された嵌合部を一側縁に有し、この嵌合部内に摺動可能に嵌入係止される係止部を他側縁に有する帯状の合成樹脂製のプロファイルを樹脂組成物から異形押出成形し、このプロファイルを螺旋状に巻回すると共に、巻回状態において互いに隣合う嵌合部に係止部を嵌合させて筒状に形成してなる螺旋管が存在する。   Further, as disclosed in Patent Document 4, it has a fitting part on one side edge that has a bifurcated vertical cross section and is provided with a retaining part on the inner edge of the opening end, and is slidable in this fitting part. A belt-shaped synthetic resin profile having a locking portion to be fitted and locked at the other side edge is formed by profile extrusion from the resin composition, and this profile is wound in a spiral shape, and in a wound state, the fittings are adjacent to each other. There is a spiral tube formed by fitting a locking portion to a joint portion to form a cylinder.

また、特許文献5に開示されているように、一側縁に縦断面二股状の嵌合部を有し、他側縁に縦断面矢尻状の係止部を有する帯状のプロファイルを螺旋状に巻き付け、隣接する嵌合部と係止部を嵌合することによって螺旋管を形成するための螺旋管形成用の帯状体において、巻き付けるときに外面側となる帯状体の嵌合部の開口端内縁に、シール材が帯状体の抜け止め部の凹溝内に食い込んで一体化されている螺旋管形成用の帯状体および螺旋管が存在する。   In addition, as disclosed in Patent Document 5, a belt-like profile having a fitting portion having a bifurcated vertical cross section on one side edge and an engaging portion having a vertical cross section arrowhead shape on the other side edge is spirally formed. In a strip for forming a helical tube for forming a spiral tube by winding and fitting an adjacent fitting portion and a locking portion, the inner edge of the opening end of the fitting portion of the belt-like body that becomes the outer surface when wound In addition, there are a strip for forming a spiral tube and a spiral tube in which a sealing material bites into a recessed groove of a retaining portion of the strip.

また、特許文献6に開示されているように、縦断面二股状で且つ開口端内縁に抜止部が対設された嵌合部を一側縁に有し、この嵌合部内に摺動可能に嵌入係止される係止部を他側縁に有する帯状となった合成樹脂製のプロファイルを樹脂組成物から異形押出成形し、このプロファイルを螺旋状に巻回すると共に、巻回状態において互いに隣合う嵌合部に係止部を嵌合させて筒状に形成してなる螺旋管が存在する。   Further, as disclosed in Patent Document 6, it has a fitting portion having a bifurcated vertical cross section and a retaining portion on the inner edge of the opening end on one side edge, and is slidable in the fitting portion. A profile made of synthetic resin in the form of a band having a locking portion to be fitted and locked on the other side edge is extruded from a resin composition, and the profile is wound spirally and adjacent to each other in the wound state. There is a spiral tube formed by fitting a locking portion to a fitting portion that fits to form a cylindrical shape.

また、特許文献7に開示されているように、縦断面二股状で開口端内縁に抜止部が対設された嵌合部を一側縁に有し、この嵌合部内に摺動可能に嵌入係止される係止部を他側縁に有し、且つ抜止部の一方の先端に軟質塩化ビニル系樹脂組成物を共押出した、塩素化塩化ビニル樹脂組成物からなる帯状のプロファイルを螺旋状に巻回すると共に、巻回状態において互いに隣り合う嵌合部と係止部とを嵌合させて筒状に形成してなる螺旋管であって、軟質塩化ビニル系樹脂組成物に可塑剤を含まないものとしてあるケーブル防護管が存在する。   Further, as disclosed in Patent Document 7, it has a fitting portion on one side edge having a bifurcated vertical section and a retaining portion on the inner edge of the opening end, and is slidably fitted into this fitting portion. A belt-like profile made of a chlorinated vinyl chloride resin composition, having a locking portion to be locked at the other side edge, and coextruded with a soft vinyl chloride resin composition at one end of the retaining portion is spiral And a cylindrical tube formed by fitting a fitting portion and a locking portion adjacent to each other in a wound state, and a plasticizer is added to the soft vinyl chloride resin composition. There is a cable protection tube that is not included.

特開平8−47718号公報JP-A-8-47718 特開平9−229245号公報JP-A-9-229245 特開2000−88155号公報JP 2000-88155 A 特開2000−256526号公報JP 2000-256526 A 特開2001−124251号公報JP 2001-124251 A 特開2001−145954号公報JP 2001-145954 A 特開2004−297946号公報JP 2004-297946 A

上記した従来例に示すように、特許文献1乃至7のいずれの場合においても、図5に示すように、ケーブル用導管Pが一側縁の縦断面二股状の嵌合部101と他側縁の縦断面矢尻状の係止部102と縦断面直線状の中央部103とからなる帯状のプロファイルRによって形成されている。そして、プロファイルRを不図示のマンドレル上に螺旋状に供給巻回し、互いに隣合う嵌合部101の中に係止部102が挿入された状態で螺旋管状のケーブル用導管Pが形成され、この内部に光ファイバーケーブル等の各種のケーブル類が挿通されてから地中の所定の場所に埋設される。   As shown in the conventional example described above, in any case of Patent Documents 1 to 7, as shown in FIG. 5, the cable conduit P has a bifurcated fitting section 101 having one side edge and the other side edge. Are formed by a belt-like profile R composed of a vertical cross-section arrow-shaped locking portion 102 and a vertical central section 103 having a straight vertical section. Then, the profile R is spirally supplied and wound on a mandrel (not shown), and a spiral tubular cable conduit P is formed in a state where the engaging portion 102 is inserted into the fitting portion 101 adjacent to each other. After various cables such as optical fiber cables are inserted inside, they are buried in a predetermined place in the ground.

しかしながら、上記した従来におけるケーブル用導管Pは、例えば管路構成に対応して彎曲させるに際し、その湾曲部分において、図5(a)に示す収縮状態から図5(b)に示す伸張状態となったときには、係止部102が嵌合部101先端に形成された抜止部102によって係止されて中央部103が露出する。そうすると、この中央部103の管壁は1枚構造であるため、外部からの衝撃、例えば不用意にもスコップSが落下して当該スコップSの先端が中央部103に当たってしまった場合、その衝撃で中央部103に亀裂・破断を生じ、これによりケーブル用導管Pによるケーブル類の保護機能、例えば防水機能等が損なわれるという問題点を有していた。   However, when the above-described conventional cable conduit P is bent in accordance with, for example, the pipe configuration, the bent portion thereof is changed from the contracted state shown in FIG. 5A to the extended state shown in FIG. 5B. When this occurs, the locking portion 102 is locked by the retaining portion 102 formed at the tip of the fitting portion 101, and the central portion 103 is exposed. Then, since the tube wall of the central portion 103 has a single sheet structure, if the scoop S falls inadvertently and the tip of the scoop S hits the central portion 103, for example, The central portion 103 is cracked and broken, which causes a problem that the protection function of cables by the cable conduit P, such as a waterproof function, is impaired.

そこで、本発明は叙上のような従来存した諸事情に鑑み創出されたもので、管壁を形成する互いに隣り合う管形成部材(プロファイル)の相互が伸張状態となったときでも、管壁全域が二重構造に保持されていることで、外部からの衝撃、例えば不用意に落下したスコップからの衝撃その他によって破損されるのを未然に防止でき、ケーブル用導管に挿通されている各種ケーブル類に対する保護機能が損なわれないようにしたケーブル用導管を提供することを目的とする。   Therefore, the present invention was created in view of the conventional circumstances as described above, and even when the mutually adjacent tube forming members (profiles) forming the tube wall are stretched, the tube wall Since the entire area is held in a double structure, it can be prevented from being damaged by external impact, such as impact from an accidentally dropped scoop, etc., and various cables inserted into cable conduits It is an object of the present invention to provide a cable conduit that does not impair the protection function against the cable.

上述した課題を解決するために、本発明にあっては、螺旋状に巻回されて互いに隣り合う管形成部材Q相互が伸縮自在となるよう筒状に形成されたケーブル用導管Pであって、管形成部材Qは、縦断面二股状で且つ開口端内縁にストッパー部4が対設された第1嵌合部1を一側縁に有し、第1嵌合部1に嵌合される縦断面矢形状の係止アーム片3、係止アーム片3の外側に並設したプロテクタ部5によって縦断面二股状に形成された第2嵌合部6を他側縁に有し、ケーブル用導管Pは、互いに隣り合う管形成部材Q相互で、第1嵌合部1に係止アーム片3が嵌合され、且つ第2嵌合部6に縦断面二股状の第1嵌合部1の外側片が嵌挿されてなるものである。
プロテクタ部5は、外側に凸となった縦断面湾曲状に形成されたり、あるいは係止アーム片3と平行となった縦断面直線状に形成されたりすることができる。
プロテクタ部5は、先端内縁に係止突部7を設け、互いに隣り合う管形成部材Q相互の伸張状態で、第1嵌合部1の開口端外縁に形成された被係止突部8によって係止されるものとすることができる。
管形成部材Qは帯状に形成され、これを螺旋状に巻回してから、第1嵌合部1に係止アーム片3を順次嵌合させることで螺旋管状に形成されてなるものとすることができる。
管形成部材Qはそれぞれ環状となって複数が形成され、これら管形成部材Qは、一方の管形成部材Qの第1嵌合部1に他方の管形成部材Qの第2嵌合部6の係止アーム片3を順次嵌合させることで管形成部材Q直列型の管状に形成されてなるものとすることができる。
In order to solve the above-described problems, the present invention is a cable conduit P that is formed in a cylindrical shape so that the tube forming members Q that are wound spirally and adjacent to each other can be expanded and contracted. The tube forming member Q has a first fitting portion 1 having a longitudinal cross-section and a stopper portion 4 on the inner edge of the opening end on one side edge, and is fitted to the first fitting portion 1. A cable having a second fitting portion 6 formed in a bifurcated vertical section by a locking arm piece 3 having a vertical cross-sectional arrow shape and a protector portion 5 provided in parallel on the outside of the locking arm piece 3 at the other side edge. The conduit P is a mutually adjacent tube forming member Q, the first fitting portion 1 is fitted with the locking arm piece 3 and the second fitting portion 6 has a bifurcated first fitting portion 1. The outer piece is inserted and inserted.
The protector portion 5 can be formed in a curved longitudinal section that is convex outward, or can be formed in a straight longitudinal section that is parallel to the locking arm piece 3.
The protector portion 5 is provided with a locking projection 7 on the inner edge of the tip, and by the locked projection 8 formed on the outer edge of the opening end of the first fitting portion 1 in the expanded state of the mutually adjacent tube forming members Q. It can be locked.
The tube forming member Q is formed in a strip shape, and is formed in a spiral tubular shape by winding the member in a spiral shape and then sequentially fitting the locking arm pieces 3 into the first fitting portion 1. Can do.
A plurality of tube forming members Q are formed in an annular shape, and these tube forming members Q are connected to the first fitting portion 1 of one tube forming member Q and the second fitting portion 6 of the other tube forming member Q. By sequentially fitting the locking arm pieces 3, the tube forming member Q can be formed in a tubular shape in series.

以上のように構成された本発明に係るケーブル用導管Pにあって、係止アーム片3を外側から覆っているプロテクタ部5は、互いに隣り合う管形成部材Q相互の伸張状態で係止アーム片3が第1嵌合部1のストッパー部4によって係止される。この状態においても外側のプロテクタ部5が係止アーム片3上を常に覆っているため、第2嵌合部6は第1嵌合部1と共に管壁全域にわたって二重構造となる。
縦断面湾曲状に形成されたプロテクタ部5は、互いに隣り合う管形成部材Q相互の屈曲調整を可能にさせる。
縦断面直線状に形成されたプロテクタ部5は、互いに隣り合う管形成部材Q相互の直線的な伸縮調整を可能にさせる。
プロテクタ部5は、互いに隣り合う管形成部材Q相互の伸張状態で、当該プロテクタ部5の係止突部7を第1嵌合部1の被係止突部8に係止させ、相互間の抜脱を阻止し、全域の二重管壁構造を維持させる。
螺旋管状に形成される管形成部材Qは、螺旋径を拡大したり縮小したりすることによって導管全体を任意の口径に設定させる。
直列型の管状に形成される管形成部材Qは、各種口径の管形成部材Qを用意することで、通信ケーブル等の引込配線のサイズや個数に対応させる。
In the cable conduit P according to the present invention configured as described above, the protector portion 5 covering the locking arm piece 3 from the outside is provided with the locking arm in an extended state between the mutually adjacent tube forming members Q. The piece 3 is locked by the stopper portion 4 of the first fitting portion 1. Even in this state, the outer protector portion 5 always covers the locking arm piece 3, so that the second fitting portion 6 has a double structure over the entire tube wall together with the first fitting portion 1.
The protector portion 5 formed in a longitudinal section curved shape enables the bending adjustment of the mutually adjacent tube forming members Q.
The protector portion 5 formed in a straight longitudinal section enables linear expansion and contraction adjustment between the tube forming members Q adjacent to each other.
The protector unit 5 is configured to lock the locking projection 7 of the protector unit 5 to the locked projection 8 of the first fitting unit 1 in an expanded state between the adjacent tube forming members Q, and Prevents withdrawal and maintains the entire double-pipe wall structure.
The tube forming member Q formed in a spiral tube causes the entire conduit to be set to an arbitrary diameter by increasing or decreasing the spiral diameter.
The tube forming member Q formed in an in-line shape is made to correspond to the size and number of lead-in wires such as communication cables by preparing tube forming members Q of various diameters.

本発明によれば、互いに逆向きとなっている縦断面二股状の第1嵌合部1と第2嵌合部6とを螺旋状に巻回しながらそれらの溝内で互いに嵌め合わせて管壁を形成するものとなっており、そのため、互いに隣り合う管形成部材Qの相互が伸張状態となったときでも、管壁全域の二重構造が維持される。そのため、外部からの衝撃、例えば不用意に落下したスコップSからの衝撃その他によって破損されるのを未然に防止でき、ケーブル用導管Pに挿通されている各種ケーブル類に対する保護機能が損なわれないようにすることができる。   According to the present invention, the first fitting portion 1 and the second fitting portion 6 having a bifurcated vertical cross section which are opposite to each other are spirally wound and fitted to each other in the grooves so as to be pipe walls. Therefore, even when the mutually adjacent tube forming members Q are stretched, the double structure of the entire tube wall is maintained. Therefore, it can be prevented from being damaged by an external impact, for example, an impact from the scoop S that has been accidentally dropped, and the protection function for various cables inserted through the cable conduit P is not impaired. Can be.

すなわち、これは本発明が、管形成部材Qは、縦断面二股状で且つ開口端内縁にストッパー部4が対設された第1嵌合部1を一側縁に有し、第1嵌合部1に嵌合される縦断面矢形状の係止アーム片3、係止アーム片3の外側に並設したプロテクタ部5によって縦断面二股状に形成された第2嵌合部6を他側縁に有し、ケーブル用導管Pは、互いに隣り合う管形成部材Q相互で、第1嵌合部1に係止アーム片3が嵌合され、且つ第2嵌合部6に縦断面二股状の第1嵌合部1の外側片が嵌挿されてなるからである。これによって、螺旋状に巻回されて互いに隣り合う管形成部材Qの相互が伸張状態となっても、第1嵌合部1は元より、第2嵌合部6においては、プロテクタ部5によって係止アーム片3箇所が管壁全域にわたって二重構造となるため、外部からの衝撃がプロテクタ部5によって阻止され、係止アーム片3自体の破損を未然に防止することができる。しかも、このような係止アーム片3を保護することに加えて、プロテクタ部5は外部からの衝撃に対して係止アーム片3を強化することができる。   That is, according to the present invention, the tube forming member Q has a first fitting portion 1 on one side edge having a bifurcated vertical cross section and a stopper portion 4 opposed to the inner edge of the opening end. The second fitting portion 6 formed in a bifurcated vertical cross section by the locking arm piece 3 having a vertical cross-sectional arrow shape fitted to the portion 1 and the protector portion 5 provided side by side outside the locking arm piece 3 is provided on the other side. The cable conduit P has an edge, and the pipe forming member Q is adjacent to each other, the locking arm piece 3 is fitted to the first fitting portion 1, and the second fitting portion 6 is bifurcated in longitudinal section. This is because the outer piece of the first fitting portion 1 is inserted and inserted. As a result, even if the tube forming members Q that are wound spirally and are adjacent to each other are in an expanded state, the first fitting portion 1 is not the original, and the second fitting portion 6 is not protected by the protector portion 5. Since the three locking arm pieces have a double structure over the entire tube wall, external impacts are blocked by the protector portion 5, and damage to the locking arm pieces 3 themselves can be prevented. Moreover, in addition to protecting the locking arm piece 3, the protector portion 5 can reinforce the locking arm piece 3 against an external impact.

また、第1嵌合部1が縦断面二股状であることで二重構造となっていることと相俟ち、第2嵌合部6における係止アーム片3箇所でもプロテクタ部5が並設されて二重構造となっていることで、互いに隣り合う管形成部材Qの相互が伸張しても管壁全体が二重構造に維持されるから、管壁全域にわたる強度および保護機能がさらに向上する。しかも、螺旋状に巻回されて互いに隣り合う管形成部材Qの相互が収縮したときでは、管壁全体が四重構造となるため、さらに強度が向上する。   In addition, the first fitting portion 1 has a bifurcated structure with a bifurcated vertical cross section, and thus the protector portion 5 is arranged in parallel at three locking arm pieces in the second fitting portion 6. As a result of having a double structure, the entire tube wall is maintained in a double structure even when the adjacent tube forming members Q extend, so the strength and protection function over the entire tube wall are further improved. To do. In addition, when the tube forming members Q that are wound spirally and adjacent to each other contract each other, the entire tube wall has a quadruple structure, so that the strength is further improved.

プロテクタ部5は、外側に凸となった縦断面湾曲状に形成されてなるので、互いに隣り合う管形成部材Q相互の屈曲をスムーズに行わせ、通信ケーブル等の湾曲状の引込配線に応じて必要となる導管全体の湾曲調整を容易に行うことができる。   Since the protector portion 5 is formed in a curved longitudinal section that is convex outward, the adjacent tube forming members Q can smoothly bend each other, and according to curved lead-in wiring such as a communication cable. The necessary curve adjustment of the entire conduit can be easily performed.

プロテクタ部5は、係止アーム片3と平行となった縦断面直線状に形成されてなるので、通信ケーブル等の直線状の引込配線に応じて必要となる導管全体の直線的な伸縮調整を精確に行うことができる。   Since the protector section 5 is formed in a straight vertical section that is parallel to the locking arm piece 3, the linear expansion / contraction adjustment of the entire conduit necessary for the linear lead-in wiring of a communication cable or the like is performed. Can be done accurately.

プロテクタ部5は、先端内縁に係止突部7を設け、互いに隣り合う管形成部材Q相互の伸張状態で、第1嵌合部1の開口端外縁に形成された被係止突部8によって係止されるものとしたので、第1嵌合部1からの係止アーム片3の抜け止め強度を更に向上させ、全体の二重管壁構造を維持できる。   The protector portion 5 is provided with a locking projection 7 on the inner edge of the tip, and by the locked projection 8 formed on the outer edge of the opening end of the first fitting portion 1 in the expanded state of the mutually adjacent tube forming members Q. Since it is to be locked, the retaining strength of the locking arm piece 3 from the first fitting portion 1 can be further improved, and the entire double tube wall structure can be maintained.

管形成部材Qは帯状に形成され、これを螺旋状に巻回してから、第1嵌合部1に第2嵌合部6の係止アーム片3を順次嵌合させることで螺旋管状に形成されてなるので、巻回成形時に螺旋径を縮小または拡大することで、導管全体の口径を任意に設定することができる。   The tube forming member Q is formed in a strip shape, and is formed in a spiral tubular shape by winding the member in a spiral shape and then sequentially fitting the locking arm pieces 3 of the second fitting portion 6 into the first fitting portion 1. Therefore, the diameter of the entire conduit can be arbitrarily set by reducing or expanding the spiral diameter during the winding molding.

管形成部材Qはそれぞれ環状となって複数が形成され、これら管形成部材Qは、一方の管形成部材Qの第1嵌合部1に他方の管形成部材Qの第2嵌合部6の係止アーム片3を順次嵌合させることで管形成部材Q直列型の管状に形成されるので、通信ケーブル等の引込配線のサイズや個数に応じて各種口径の管形成部材Qを用意することで、その対応が可能となる。   A plurality of tube forming members Q are formed in an annular shape, and these tube forming members Q are connected to the first fitting portion 1 of one tube forming member Q and the second fitting portion 6 of the other tube forming member Q. Since the tube forming member Q is formed into a serial tube by sequentially fitting the locking arm pieces 3, tube forming members Q of various diameters are prepared according to the size and number of lead-in wires such as communication cables. This can be handled.

尚、上記の課題を解決するための手段、発明の効果の項それぞれにおいて付記した符号は、図面中に記載した構成各部を示す部分との参照を容易にするために付したもので、図面中の符号によって示された構造・形状に本発明が限定されるものではない。   Note that the reference numerals added in the means for solving the above-described problems and the effects of the invention are given for easy reference to the parts showing the components shown in the drawings. The present invention is not limited to the structure / shape indicated by the reference numeral.

本発明を実施するための一形態を示すもので、収縮状態と伸張状態との一部拡大断面図を含む正面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a form for carrying out the present invention, including a partially enlarged sectional view of a contracted state and a stretched state. 他の形態を示すもので、(a)は収縮状態の要部を示す拡大断面図、(b)は伸張状態の要部を示す拡大断面図である。It shows another embodiment, (a) is an enlarged cross-sectional view showing the main part in the contracted state, (b) is an enlarged cross-sectional view showing the main part in the expanded state. 更に他の形態を示す伸張状態の要部を示す拡大断面図である。It is an expanded sectional view which shows the principal part of the expansion | extension state which shows another form. 更に他の形態を示すもので、嵌合状態の一部拡大断面図を含む正面図である。Furthermore, it shows another form, and is a front view including a partially enlarged cross-sectional view in a fitted state. 従来例を示すもので、(a)は収縮状態の要部を示す拡大断面図、(b)は伸張状態の要部を示す拡大断面図である。FIG. 2 shows a conventional example, (a) is an enlarged cross-sectional view showing a main part in a contracted state, and (b) is an enlarged cross-sectional view showing the main part in an expanded state.

以下、図面を参照して本発明の実施の一形態を詳細に説明すると、図において示される符号Pは、光ファイバーケーブル等の各種のケーブル類を例えば地中に埋設配線するための配線管路を構成するケーブル用導管である。   Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral P shown in the figure denotes a wiring conduit for burying various cables such as optical fiber cables in the ground, for example. It is the conduit | pipe for cables to comprise.

ケーブル用導管Pは、管形成部材Qによって構成される。この管形成部材Qとしては、例えばPVC・PE・PP・ABSその他の合成樹脂素材を用途環境に合わせて使用し、また使用環境に対応するよう、耐熱性・難燃性・耐衝撃性・熱硬化性・熱可塑性等のものを使用する。尚、管形成部材Qの素材や熱的・機械的な物性等は本発明を何ら限定するものではなく、合成樹脂素材とする他に例えば金属製素材を使用しても良い。   The cable conduit P is constituted by a tube forming member Q. As this tube forming member Q, for example, PVC, PE, PP, ABS, or other synthetic resin materials are used according to the application environment, and heat resistance, flame resistance, impact resistance, Use curable and thermoplastic materials. In addition, the material of the tube forming member Q, the thermal / mechanical physical properties, and the like do not limit the present invention at all. For example, a metal material may be used instead of the synthetic resin material.

管形成部材Qは、図1に示すように、合成樹脂組成物から押出成形等により帯状に形成され、帯一側縁には、縦断面二股状で且つ開口端内縁にストッパー部4が対設された第1嵌合部1が形成され、帯他側縁には当該第1嵌合部1とは逆向きの第2嵌合部6が一体形成されている。   As shown in FIG. 1, the tube forming member Q is formed in a band shape by extrusion molding or the like from a synthetic resin composition, and has a bifurcated longitudinal section on one side edge of the band and a stopper portion 4 on the inner edge of the opening end. The 1st fitting part 1 was formed, and the 2nd fitting part 6 of the direction opposite to the said 1st fitting part 1 is integrally formed in the band other side edge.

第2嵌合部6は、第1嵌合部1の基端部中央から逆向きに延び、先端に係止部2を備えた縦断面矢形状の係止アーム片3と、係止アーム片3と並行するように第1嵌合部1の基端部外側から逆向きに延びたプロテクタ部5とによって縦断面二股状に形成され、第1嵌合部1および第2嵌合部6は互いの開口部を反対にして逆向き一体構造となることで管形成部材Q自体は縦断面略H形状を呈している。   The second fitting portion 6 extends in the reverse direction from the center of the base end portion of the first fitting portion 1 and has a locking arm piece 3 having a vertical cross-sectional arrow shape having a locking portion 2 at the tip, and a locking arm piece. 3 and a protector portion 5 extending in the opposite direction from the outside of the base end portion of the first fitting portion 1 so as to be parallel to 3, the first fitting portion 1 and the second fitting portion 6 are formed in a bifurcated longitudinal section. The tube forming member Q itself has a substantially H-shaped vertical cross section because the opening portions are opposite to each other to form a reverse-oriented integrated structure.

プロテクタ部5は、係止アーム片3を外側から覆うように外側に向けて凸となった縦断面湾曲状に形成されており、螺旋状に巻回したときに、前部側の一方あるいは後部側の他方として互いに隣り合う管形成部材Q相互の屈曲に対応できるようにしてある。また、係止部2の先端は若干の丸みを帯びており、これに対応して第1嵌合部1の内底側は断面略U字状に形成されている。   The protector portion 5 is formed in a curved longitudinal section that is convex outward so as to cover the locking arm piece 3 from the outside. When the protector portion 5 is wound spirally, one or the rear portion on the front side is formed. As the other side, the tube forming members Q adjacent to each other can be adapted to bend each other. Moreover, the front-end | tip of the latching | locking part 2 is slightly rounded, and the inner bottom side of the 1st fitting part 1 is formed in the cross-sectional substantially U shape corresponding to this.

ケーブル用導管Pは、この帯状の管形成部材Qを螺旋状に巻回してから、第1嵌合部1に、第2嵌合部6における係止アーム片3の係止部2を順次嵌合させることで螺旋管状に形成されてなる。このとき、第2嵌合部6における係止アーム片3とプロテクタ部5との間の間隙内には、隣接する管形成部材Qの縦断面二股状となった第1嵌合部1の二股外側片部分が嵌挿されるものとなっている。   In the cable conduit P, the belt-shaped tube forming member Q is spirally wound, and then the locking portion 2 of the locking arm piece 3 in the second fitting portion 6 is sequentially fitted into the first fitting portion 1. By being combined, it is formed in a spiral tubular shape. At this time, in the gap between the locking arm piece 3 and the protector portion 5 in the second fitting portion 6, the forked portion of the first fitting portion 1 that has a bifurcated vertical cross section of the adjacent tube forming member Q. The outer piece is inserted.

互いに隣り合う管形成部材Q相互の伸張状態では、係止部2が第1嵌合部1先端のストッパー部4によって係止される。このとき露出する係止アーム片3の外表面全体はプロテクタ部5によって外側から覆われた状態となっていることで当該係止アーム片3が保護されるものとしている。   In the extended state of the mutually adjacent tube forming members Q, the locking portion 2 is locked by the stopper portion 4 at the tip of the first fitting portion 1. The entire outer surface of the locking arm piece 3 exposed at this time is covered from the outside by the protector 5 so that the locking arm piece 3 is protected.

次に、以上のように構成された形態についての組立方法および使用の一例について説明すると、上記した構成による帯状の管形成部材Qを不図示のマンドレル上に螺旋状に供給巻回し、不図示の押圧具により、第1嵌合部1に係止アーム片3の係止部2を強制嵌合させることにより螺旋管状のケーブル用導管Pが形成される。このとき、マンドレルの外径を拡大もしくは縮小させることによりマンドレルの外径に対応した口径を備えたケーブル用導管Pが製造される。   Next, a description will be given of an example of an assembling method and use of the configuration configured as described above. The belt-shaped tube forming member Q having the above-described configuration is spirally supplied and wound on a mandrel (not shown) A helical tubular cable conduit P is formed by forcibly fitting the locking portion 2 of the locking arm piece 3 to the first fitting portion 1 by the pressing tool. At this time, the cable conduit P having a diameter corresponding to the outer diameter of the mandrel is manufactured by expanding or reducing the outer diameter of the mandrel.

ケーブル用導管Pの使用時において、通信ケーブル等の湾曲状もしくは直線状の引込配線に応じて当該ケーブル用導管Pの互いに隣り合う管形成部材Q相互が湾曲もしくは伸張された際には、第1嵌合部1に挿入されている係止アーム片3は当該第1嵌合部1から外側へスライドされ、第2嵌合部6の係止アーム片3先端の係止部2が第1嵌合部1先端のストッパー部4によって係止される。このとき係止アーム片3の外表面全体はプロテクタ部5によって外側から覆われた二重構造となっていることで当該係止アーム片3は保護される。   When the cable conduit P is used, when the adjacent tube forming members Q of the cable conduit P are curved or stretched according to the curved or straight lead-in wiring of the communication cable or the like, the first The locking arm piece 3 inserted in the fitting portion 1 is slid outward from the first fitting portion 1, and the locking portion 2 at the tip of the locking arm piece 3 of the second fitting portion 6 is the first fitting. It is locked by the stopper portion 4 at the tip of the joint portion 1. At this time, the entire outer surface of the locking arm piece 3 has a double structure covered from the outside by the protector portion 5, so that the locking arm piece 3 is protected.

しかも、互いに隣り合う管形成部材Q相互が湾曲もしくは伸張しても、第1嵌合部1及び第2嵌合部6それぞれが縦断面二股状であることで互いの嵌合は全体を二重構造となしており、特に係止アーム片3箇所にプロテクタ部5が並設されて二重構造となっていることにより、管壁全体にわたって二重構造が維持される。   Moreover, even if the adjacent tube forming members Q are curved or stretched, the first fitting portion 1 and the second fitting portion 6 each have a bifurcated vertical cross section, so that the mutual fitting is entirely double. It has a structure, and in particular, the protector portion 5 is juxtaposed at three locations of the locking arm pieces to form a double structure, whereby the double structure is maintained over the entire tube wall.

一方、互いに隣り合う管形成部材Q相互が収縮したときでは、第1嵌合部1と第2嵌合部6とが相互に嵌合することで、管壁全体にわたって四重構造となる。こうして、ケーブル用導管Pの管壁全域にわたる強度および保護機能が保障される。   On the other hand, when the mutually adjacent tube forming members Q contract, the first fitting portion 1 and the second fitting portion 6 are fitted to each other, so that a quadruple structure is formed over the entire tube wall. In this way, the strength and the protection function over the entire pipe wall of the cable conduit P are ensured.

また、図2には管形成部材Qの他の例が示されている。この例において、プロテクタ部5は係止アーム片3と平行となった縦断面直線状に形成されており、互いに隣り合う管形成部材Q相互の伸縮状態では、互いに隣り合うプロテクタ部5相互が面一の状態となるようにしてある。尚、係止部2の先端は鋭角状に尖っており、これに対応して第1嵌合部1の内底側は断面略円錐状に凹設されている。   FIG. 2 shows another example of the tube forming member Q. In this example, the protector portion 5 is formed in a longitudinal section linearly parallel to the locking arm piece 3, and the adjacent protector portions 5 face each other in the stretched state of the mutually adjacent tube forming members Q. It will be in one state. In addition, the front-end | tip of the latching | locking part 2 is sharpened acutely, and the inner bottom side of the 1st fitting part 1 is recessedly provided by the cross-sectional substantially cone shape corresponding to this.

また、図3には管形成部材Qの更に他の例が示されている。すなわち、第2嵌合部6のプロテクタ部5の先端内縁には係止突部7が設けられ、これに対応して、第1嵌合部1の開口端外縁には被係止突部8が設けられている。そして互いに隣り合う管形成部材Q相互の伸張状態では、第2嵌合部6のプロテクタ部5の係止突部7が第1嵌合部1の被係止突部8によって係止されるものとしてある。   FIG. 3 shows still another example of the tube forming member Q. That is, a locking projection 7 is provided on the inner edge of the front end of the protector portion 5 of the second fitting portion 6, and correspondingly, a locked projection 8 is provided on the outer edge of the opening end of the first fitting portion 1. Is provided. And in the expansion | extension state of the mutually adjacent tube formation member Q, the latching protrusion 7 of the protector part 5 of the 2nd fitting part 6 is latched by the to-be-latched protrusion 8 of the 1st fitting part 1. It is as.

また、図4には管形成部材Qの更に他の例が示されている。すなわち、一側縁に縦断面二股状で且つ開口端内縁にストッパー部4が対設された第1嵌合部1を有し、他側縁に先端に係止部2を備えた縦断面矢形状の係止アーム片3と当該係止アーム片3を外側で覆うプロテクタ部5との並設によって、同じく縦断面二股状に形成された第2嵌合部6を有する環状の管形成部材Qを複数作製しておく。そして一方の管形成部材Qの第1嵌合部1に他方の管形成部材Qの第2嵌合部6の係止アーム片3を順次嵌合させることで、複数の管形成部材Qが可撓性ある直列型となったケーブル用導管Pが形成される。この場合、通信ケーブル等の引込配線のサイズや個数に応じて各種口径の管形成部材Qとして形成され、用意される。   FIG. 4 shows still another example of the tube forming member Q. That is, a vertical cross-sectional arrow having a first fitting portion 1 having a bifurcated vertical cross section on one side edge and a stopper portion 4 on the inner edge of the opening end, and having a locking portion 2 at the tip on the other side edge. An annular tube forming member Q having a second fitting portion 6 that is also formed in a bifurcated longitudinal section by juxtaposing a locking arm piece 3 having a shape and a protector portion 5 that covers the locking arm piece 3 on the outside. A plurality of are prepared. Then, by sequentially fitting the locking arm pieces 3 of the second fitting portion 6 of the other tube forming member Q into the first fitting portion 1 of one tube forming member Q, a plurality of tube forming members Q are possible. A flexible cable conduit P is formed. In this case, tube forming members Q having various diameters are prepared and prepared according to the size and number of lead-in wires such as communication cables.

P…ケーブル用導管 Q…管形成部材
R…プロファイル S…スコップ
1…第1嵌合部 2…係止部
3…係止アーム片 4…ストッパー部
5…プロテクタ部 6…第2嵌合部
7…係止突部 8…被係止突部
101…嵌合部 102…係止部
103…中央部
P ... Cable conduit Q ... Tube forming member R ... Profile S ... Scoop 1 ... First fitting part 2 ... Locking part 3 ... Locking arm piece 4 ... Stopper part 5 ... Protector part 6 ... Second fitting part 7 ... Locking protrusion 8 ... Locked protrusion 101 ... Fitting part 102 ... Locking part 103 ... Center part

Claims (5)

螺旋状に巻回されて互いに隣り合う管形成部材相互が伸縮自在となるよう筒状に形成されたケーブル用導管であって、管形成部材は、縦断面二股状で且つ開口端内縁にストッパー部が対設された第1嵌合部を一側縁に有し、第1嵌合部に嵌合される縦断面矢形状の係止アーム片、係止アーム片の外側に並設したプロテクタ部によって縦断面二股状に形成された第2嵌合部を他側縁に有し、ケーブル用導管は、互いに隣り合う管形成部材相互で、第1嵌合部に係止アーム片が嵌合され、且つ第2嵌合部に縦断面二股状の第1嵌合部の外側片が嵌挿されてなり、前記プロテクタ部は、先端内縁に係止突部を設け、互いに隣り合う管形成部材相互の伸張状態で、第1嵌合部の開口端外縁に形成された被係止突部によって係止されることを特徴とするケーブル用導管。 A cable conduit that is spirally wound and formed into a tubular shape so that mutually adjacent tube forming members can be expanded and contracted, and the tube forming member has a bifurcated longitudinal section and a stopper portion at the inner edge of the open end A locking arm piece having a vertical cross-sectional arrow shape fitted to the first fitting part, and a protector part arranged in parallel on the outer side of the locking arm piece. The cable fitting has a second fitting portion formed in a bifurcated vertical cross section at the other side edge, and the cable arm is fitted with the first fitting portion between the adjacent pipe forming members. In addition, an outer piece of the first fitting portion having a bifurcated vertical cross section is fitted into the second fitting portion, and the protector portion is provided with a locking projection on the inner edge of the tip, and the tube forming members adjacent to each other. in the stretched state, characterized that you are engaged by locked protruding portion formed at an opening end edge of the first fitting portion Buru conduit. プロテクタ部は、外側に凸となった縦断面湾曲状に形成されてなる請求項1記載のケーブル用導管。   The cable conduit according to claim 1, wherein the protector portion is formed in a curved shape in a longitudinal section that is convex outward. プロテクタ部は、係止アーム片と平行となった縦断面直線状に形成されてなる請求項1記載のケーブル用導管。   The cable conduit according to claim 1, wherein the protector part is formed in a straight line in a longitudinal section parallel to the locking arm piece. 管形成部材は帯状に形成され、これを螺旋状に巻回してから、第1嵌合部に第2嵌合部の係止アーム片を順次嵌合させることで螺旋管状に形成されてなる請求項1乃至3のいずれか記載のケーブル用導管。 The tube forming member is formed in a strip shape, and is formed in a spiral tubular shape by winding the member in a spiral shape and then sequentially fitting the locking arm pieces of the second fitting portion into the first fitting portion. cable conduit according to any one of claim 1乃Itaru 3. 管形成部材はそれぞれ環状となって複数が形成され、これら管形成部材は、一方の管形成部材の第1嵌合部に他方の管形成部材の第2嵌合部の係止アーム片を順次嵌合させることで管形成部材直列型の管状に形成されてなる請求項1乃至3のいずれか記載のケーブル用導管。 Each of the tube forming members has a ring shape, and a plurality of tube forming members are formed, and the tube forming members are sequentially provided with the first fitting portion of one tube forming member and the locking arm piece of the second fitting portion of the other tube forming member. fitted to become formed in the tubular pipe forming member tandem by claim 1乃cable conduit according to any one of Itaru 3.
JP2010148834A 2010-06-30 2010-06-30 Cable conduit Expired - Fee Related JP5567917B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010148834A JP5567917B2 (en) 2010-06-30 2010-06-30 Cable conduit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010148834A JP5567917B2 (en) 2010-06-30 2010-06-30 Cable conduit

Publications (2)

Publication Number Publication Date
JP2012016121A JP2012016121A (en) 2012-01-19
JP5567917B2 true JP5567917B2 (en) 2014-08-06

Family

ID=45601908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010148834A Expired - Fee Related JP5567917B2 (en) 2010-06-30 2010-06-30 Cable conduit

Country Status (1)

Country Link
JP (1) JP5567917B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5847665B2 (en) * 2012-08-03 2016-01-27 タイガースポリマー株式会社 Synthetic resin flexible tube
CN110416956B (en) * 2019-05-17 2023-10-13 国网江苏省电力有限公司徐州供电分公司 Three span ADSS optical cable safety hardware

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190087U (en) * 1985-05-20 1986-11-27
JPH08145247A (en) * 1994-11-17 1996-06-07 Sekisui Chem Co Ltd Flexible pipe
JP2004084814A (en) * 2002-08-27 2004-03-18 Sekisui Chem Co Ltd Flexible tube

Also Published As

Publication number Publication date
JP2012016121A (en) 2012-01-19

Similar Documents

Publication Publication Date Title
US7604435B2 (en) Umbilical without lay up angle
AP1290A (en) Multiple channel duct assembly for cables.
EP2185850B1 (en) A flexible pipe
KR100959242B1 (en) A resin tube with multiple inner conduits
OA12248A (en) Armoured, flexible pipe and use of same.
JP5567917B2 (en) Cable conduit
JP5662783B2 (en) Pipe connection structure
JP4986671B2 (en) Cable protection tube
JP6590751B2 (en) Direct buried cable
JP4579093B2 (en) Pipe structure
JP6578256B2 (en) Repair method of cable for direct burial
JP4681339B2 (en) Connection structure between communication line and hand hole
KR102116101B1 (en) Connecting member of framework of corrugated pipe
KR100915950B1 (en) method for connecting a tube of underground cable to the other
JP3047714U (en) Waterproof packing and stopper device for slide pipe for underground wiring
JP2004084814A (en) Flexible tube
JP7355330B2 (en) Pipe rehabilitation components
JPH0444950Y2 (en)
JP7372631B2 (en) lining material
JP2018204718A (en) Belt-like member
JP4231771B2 (en) Protective tube and its use
JP2008090085A (en) Flexible tube for passing optical fiber cable through
AU2006225058A1 (en) Tube
JP6584999B2 (en) Direct buried cable
JP2019181789A (en) Belt-like member for spiral tube and method for manufacturing the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130614

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140131

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140401

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140501

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140520

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140620

R150 Certificate of patent or registration of utility model

Ref document number: 5567917

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees