JP4043840B2

JP4043840B2 - Split corrugated tube

Info

Publication number: JP4043840B2
Application number: JP2002147164A
Authority: JP
Inventors: 裕古川; 正人池内; 一矢今松
Original assignee: Furukawa Electric Co Ltd
Current assignee: Furukawa Electric Co Ltd
Priority date: 2002-05-22
Filing date: 2002-05-22
Publication date: 2008-02-06
Anticipated expiration: 2022-05-22
Also published as: JP2003336789A

Description

【０００１】
【発明の属する技術分野】
本発明は、布設されている電力ケーブル，通信ケーブル，光ケーブル等の長尺体に装着して保護するための割入り波付け管に関するものである。
【０００２】
【従来の技術】
電力ケーブル，通信ケーブル，光ケーブル等の長尺体を仮布設する場合、図１１に示すような割入り波付け管１を外周に装着して保護することが行われている。この割入り波付け管１は、その周壁部にヘレカル状または間欠的なリング状の波付け２ａが施されていて、長手方向に片割れまたは２つ割れの状態で割り部２ｂが入れられた４ｍ程度の割入り波付け管本体２を備えている。この割入り波付け管本体２は、布設されている長尺体の外周に割り部２ｂを利用して被覆され、１〜２ｍ程度の間隔で長手方向に間欠的にバンドや針金等の結束部材３で結束されて装着される。
【０００３】
このような割入り波付け管本体２は、合成樹脂製であり、軽量で、可とう性があり、施工が簡単、低コストである等の理由から仮設ケーブルの保護管として広く使用されている。
【０００４】
【発明が解決しようとする課題】
このような割入り波付け管１は、布設されている長尺体に取付ける際に、割入り波付け管本体２の割り部２ｂを開いて長尺体に取付けられる。特に、片割れの割入り波付け管本体２の場合、一旦開いた割入り波付け管本体２の割り部２ｂは開き癖が残る。この開いた割り部２ｂを塞ぐために、図１２に示すように、１〜２ｍ程度の間隔で結束部材３により結束するが、結束したところは合わせ目がくっつくが、結束部材３から長手方向に離れたところでは割り開き部４が生じ、その状態で安定してしまう。
【０００５】
また、この割入り波付け管本体２を曲げ布設すると、片割れや２つ割れの何れのタイプでも、曲げの内側になった箇所に割り部２ｂがあると、図１３に示すように、その割り部２ｂに割り開き部４が生じてしまう。
【０００６】
また、この割入り波付け管本体２に、刃で割り部２ｂを設ける場合には、刃が厚いと図１４に示すように全長にわたって割り開き部４が生じてしまう。片割れの割入り波付け管本体２では、割り部２ｂに対して180 °反対側に蝶番部２ｃが設けられていて、長尺体に対する取付けが容易に行えるようになっている。
【０００７】
また、この割入り波付け管本体２は、圧縮強度が、割入りでない波付け管本体に比べて弱く、荷重が加わった場合、図１５（Ａ）の状態から図１５（Ｂ）の状態に割り部２ｂの箇所で変形し、割り開き部４が生じると共に、割り部２ｂの一方の縁部が割入り波付け管本体２内に入り込んで、中の長尺体を圧迫し、該長尺体にダメージを与える恐れがある。
【０００８】
なお、図１２〜図１５（Ａ）（Ｂ）では、割入り波付け管本体２は表示を簡単にするため波付けを省略して表示している。
【０００９】
このような割入り波付け管１は、工事中の駅構内（線路の脇等）で仮設ケーブルの保護管として使用されており、割り開き部４が生じていると、乗客が投げ捨てたタバコがこの割り開き部４から割入り波付け管本体２内に入り込み、ケーブル火災を起こした例がある。この事故以後、割入り波付け管本体２の割り部２ｂを塞ぐために、結束部材３の設置間隔を狭くしたり、管の合わせ目を重ねて隙間をなくす等の処置をしなければならず、施工時間がかかる問題点があった。
【００１０】
本発明の目的は、割入り波付け管本体の割り開き部を容易に塞ぐことができる割入り波付け管を提供することにある。
【００１１】
【課題を解決するための手段】
本発明は、周壁部の長手方向に沿って延びる割り部（２ｂ）が該周壁部に入れられていて、該割り部（２ｂ）が開かれて割り開き部（４）が形成された割入波付け管本体（２）と、割り開き部（４）を塞ぐために割入波付け管本体（２）に装着された割り開き部塞ぎ部材（５）とを備えた割入り波付け管を対象とする。
【００１２】
本発明においては、割り開き部塞ぎ部材（５）が、割入り波付け管本体（２）の周方向に測った割り開き部（４）の開き幅以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体（６）と、割り開き部塞ぎ部材本体（６）の長手方向に間隔をあけて配置されて該割り開き部塞ぎ部材本体に保持された複数の波付け管把持部材（１０）とを備えている。割り開き部塞ぎ部材本体（６）の周方向の中間部の内側面には、割り開き部塞ぎ部材本体（６）の長手方向に延びる突起物（７）が突設され、割り開き部塞ぎ部材本体（６）の長手方向に間隔をあけて並ぶ複数の孔（１１）が該突起物（７）に形成されている。波付け管把持部材（１０）は、割入り波付け管本体（２）の外周に嵌るようにＣ字形に形成されて、突起物（７）に設けられた複数の孔（１１）のそれぞれに差し込まれて割り開き部塞ぎ部材本体（６）に保持され、割り開き部塞ぎ部材本体（６）で割り開き部（４）を塞ぎ、突起物（７）を割入波付け管本体（２）の割り開き部（４）に嵌めた状態で、波付け管把持部材（１０）が割入波付け管本体（２）の外周に嵌められて、割り開き部塞ぎ部材（５）が割入り波付け管本体（２）に支持された構造を有している。
【００１３】
このように割入り波付け管本体の割り開き部に沿って割り開き部塞ぎ部材を装着すると、結束部等を増やすことなく、割り開き部を容易に塞ぐことができる。従って、事故の発生を防止することができる。
【００１４】
この場合、割り開き部塞ぎ部材は、割り開き部の開き幅の以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体と、該割り開き部塞ぎ部材本体を割入り波付け管本体に固定する波付け管把持部材とで構成されていてもよい。
【００１５】
また、上記のように、割り開き部塞ぎ部材本体（６）の周方向の中間部の内側面に、割り開き部塞ぎ部材本体（６）の長手方向に延びる突起物（７）が突設されていると、この突起物を割入り波付け管本体の割り部に嵌めて、周方向にずれ動くのを防止することができる。また、この突起物によれば、割り開き部塞ぎ部材本体の機械的強度を向上させることができる。
【００１６】
【発明の実施の形態】
以下、本発明の実施の形態を図を参照して詳細に説明する。この場合も割入り波付け管本体は、表示を簡単にするため波付けを省略して表示している。
【００１７】
図１及び図２は本発明で用いる割り開き部塞ぎ部材の参考構成例を示したもので、図１は本例の割り開き部塞ぎ部材の斜視図、図２は本例の割り開き部塞ぎ部材の長手方向の端面図である。
【００１８】
本例の割り開き部塞ぎ部材５は、前述した割入り波付け管本体２の周方向に測った割り開き部４の開き幅以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体６を用いる。この割り開き部塞ぎ部材本体６の内側面には、その周方向の中間部に沿って突起物７が突設されている。突起物７の先端には、フランジ部８が突設されている。このような割り開き部塞ぎ部材本体６、突起物７及びフランジ部８は、可とう性と機械的強度を有するオレフィン系エラストマーで形成されている。
【００１９】
図３は本発明に係る割入り波付け管の参考構成例を示した斜視図である。
【００２０】
本例で、長尺体９を収容して保護している割入り波付け管１では、４ｍの長さを有する割入り波付け管本体２の割り部２ｂの全長にわたって開いている割り開き部４に沿って、その割り開き部４の開き幅の以上の周長を有し且つ可とう性を有する４ｍの長さの割り開き部塞ぎ部材５が装着されている。割り開き部塞ぎ部材５は、割り開き部４の開き幅の以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体６と、該割り開き部塞ぎ部材本体６を割入り波付け管本体２に固定する結束部材３とで構成されている。結束部材３は２ｍおき程度の間隔で結束されている。
【００２１】
このように割入り波付け管本体２の割り開き部４に沿って割り開き部塞ぎ部材５を装着すると、結束部等を増やすことなく、割り開き部４を容易に塞ぐことができる。従って、事故の発生を防止することができる。
【００２２】
図４は本発明に係る割入り波付け管の他の参考構成例を示した斜視図である。
【００２３】
本例で、長尺体９を収容して保護している割入り波付け管１でも、４ｍの長さを有する割入り波付け管本体２の割り部２ｂの全長にわたって開いている割り開き部４に沿って、その割り開き部４の開き幅の以上の周長を有し且つ可とう性を有する４ｍの長さの割り開き部塞ぎ部材５が装着されている。割り開き部塞ぎ部材５は、割り開き部４の開き幅の以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体６が、突起物７の端部のフランジ部８が割り開き部４の縁部の割入り波付け管本体２に引っ掛かって外れないようになっている。このため本例では、結束部材３が省略されている。
【００２４】
図５及び図６は本発明で用いる割り開き部塞ぎ部材の実施形態を示したもので、図５は本例の割り開き部塞ぎ部材の斜視図、図６は本例の割り開き部塞ぎ部材の組立て斜視図である。
【００２５】
本例の割り開き部塞ぎ部材５は、割り開き部４の開き幅の以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体６と、該割り開き部塞ぎ部材本体６を割入り波付け管本体２に固定する波付け管把持部材１０とで構成されている。割り開き部塞ぎ部材本体６の周方向の中間部の内側面に割り開き部塞ぎ部材本体６の長手方向に延びる突起物７が突設され、割り開き部塞ぎ部材本体６の長手方向に間隔をあけて並ぶ複数の孔１１が突起物７に開けられている。これらの孔１１は、本例では50ｃｍ間隔で設けられている。所定位置の孔１１には、Ｃ字形をした合成樹脂製或いは金属製の波付け管把持部材１０が図示のように差し込まれている。
【００２６】
この場合、波付け管把持部材１０は、正面形状が図７（Ａ）に示すようにＣ字形をしている点では同じであるが、その縦断面形状を、図７（Ｂ）に示すような楔形、或いは図７（Ｃ）に示すようなＵ字形にして、その内周側部分を図１１に示すような割入り波付け管本体２の波付け２ａの谷の部分に嵌めたり、図７（Ｄ）に示すように逆Ｕ字形にして、その内周側部分を図１１に示すような割入り波付け管本体２の波付け２ａの山の部分に嵌めたりすると、該波付け管把持部材１０が該割入り波付け管本体２から容易に外れなくなり、また該割入り波付け管本体２の長手方向にずれ動かなくなって好適である。
【００２７】
図８は本実施形態に係る割入り波付け管を示した斜視図である。
【００２８】
本例で、長尺体９を収容して保護している割入り波付け管１でも、４ｍの長さを有する割入り波付け管本体２の割り部２ｂの全長にわたって開いている割り開き部４に沿って、その割り開き部４の開き幅の以上の周長を有し且つ可とう性を有する４ｍの長さの割り開き部塞ぎ部材５が装着されている。割り開き部塞ぎ部材５としては、図５及び図６に示したものが用いられている。即ち、この割り開き部塞ぎ部材５は、突起物７を割入り波付け管本体２の割り開き部４に嵌め、割り開き部塞ぎ部材本体６で割り開き部４を塞ぎ、Ｃ字形をした波付け管把持部材１０を割入り波付け管本体２の外周に嵌めて、割入り波付け管本体２に支持されている。
【００２９】
図９は本発明で用いる割り開き部塞ぎ部材の他の参考構成例を示した長手方向の端面図である。
【００３０】
本例の割り開き部塞ぎ部材５は、割り開き部塞ぎ部材本体６の周方向の長さが割入り波付け管本体２の半周以上の長さを有し、取付けるべき割入り波付け管本体２の長手方向に沿って長い形状となっている。
【００３１】
図１０は本発明に係る割入り波付け管の参考構成例を示した横断面図である。
【００３２】
本例で、長尺体９を収容して保護している割入り波付け管１は、割入り波付け管本体２の割り開き部４を覆って割り開き部塞ぎ部材５が嵌め付けられて装着されている。この例では、割り開き部塞ぎ部材本体６の周方向の長さが割入り波付け管本体２の半周以上の長さを有しているので、波付け管把持部材１０を兼ねており、シンプルな形状となっている。
【００３３】
上記例では、割入り波付け管本体２の全長に亘って割り開き部塞ぎ部材５を装着した場合について示したが、本発明はこれに限定されるものではなく、図１３に示すように割入り波付け管本体２の曲がり部で、割り開き部４が形成されている部分のみを覆うように装着してもよい。この場合には、割り開き部塞ぎ部材本体６を所要の長さにカッターナイフ等で切断して使用する。
【００３４】
【発明の効果】
本発明の割入り波付け管は、割入り波付け管本体の割り開き部の開き幅以上の周長を有し且つ可とう性を有する割り開き部塞ぎ部材本体で割り開き部を塞ぎ、突起物を割入波付け管本体の割り開き部に嵌め、Ｃ字形の波付け管把持部材を割入波付け管本体の外周に嵌めて、割り開き部塞ぎ部材を割入り波付け管本体に装着した構造を有するので、結束部等を増やすことなく、割り開き部を容易に塞ぐことができる。従って、ケーブル火災事故等の事故の発生を防止することができる。
【００３５】
本発明においては、割り開き部塞ぎ部材本体の周方向の中間部の内側面に、割り開き部塞ぎ部材本体の長手方向に延びる突起物を突設して、この突起物を割入り波付け管本体の割り部に嵌めるようにしたので、割り開き部塞ぎ部材が周方向にずれ動くのを防止することができる。また、このように突起物を設ければ、割り開き部塞ぎ部材本体の機械的強度を向上させることができる。
【図面の簡単な説明】
【図１】本発明で用いる割り開き部塞ぎ部材の参考構成例を示した斜視図である。
【図２】図１に示す割り開き部塞ぎ部材の長手方向の端面図である。
【図３】本発明に係る割入り波付け管の参考構成例を示した斜視図である。
【図４】本発明に係る割入り波付け管の他の参考構成例を示した斜視図である。
【図５】本発明で用いる割り開き部塞ぎ部材の実施の形態を示した斜視図である。
【図６】本発明で用いる割り開き部塞ぎ部材の組立て斜視図である。
【図７】（Ａ）は本発明の実施形態に係わる割り開き部塞ぎ部材で用いている波付け管把持部材の他の３種の例の正面図、（Ｂ）（Ｃ）（Ｄ）はその縦断面形状の各種の例の断面図である。
【図８】本発明に係る割入り波付け管の実施の形態を示した斜視図である。
【図９】本発明に係わる割入り波付け管で用いる割り開き部塞ぎ部材の参考構成例を示した長手方向の端面図である。
【図１０】本発明に係る割入り波付け管の他の参考構成例を示した横断面図である。
【図１１】従来の割入り波付け管の長手方向の一部の側面図である。
【図１２】割り開き部を塞ぐようにした従来の割入り波付け管の斜視図である。
【図１３】曲がり布設された従来の割入り波付け管の斜視図である。
【図１４】従来の割入り波付け管のさらに他の例の横断面図である。
【図１５】（Ａ）（Ｂ）は従来の割入り波付け管に荷重が作用する前と作用した後の横断面図である。
【符号の説明】
１割入り波付け管
２割入り波付け管本体
２ａ波付け
２ｂ割り部
２ｃ蝶番部
３結束部材
４割り開き部
５割り開き部塞ぎ部材
６割り開き部塞ぎ部材本体
７突起物
８フランジ部
９長尺体
１０波付け管把持部材
１１孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a split corrugated pipe for mounting and protecting a long body such as an installed power cable, communication cable, or optical cable.
[0002]
[Prior art]
When a long body such as a power cable, a communication cable, an optical cable or the like is temporarily laid, a broken corrugated pipe 1 as shown in FIG. 11 is attached to the outer periphery for protection. This split corrugated tube 1 is provided with a helical wall or intermittent ring-shaped corrugation 2a on its peripheral wall, and the split portion 2b is inserted into the longitudinal direction in the form of one or two cracks. A corrugated tube main body 2 having a degree of split is provided. The split corrugated tube main body 2 is coated on the outer circumference of the installed long body using the split portion 2b, and is a binding member such as a band or wire intermittently in the longitudinal direction at intervals of about 1 to 2 m. 3 is bound and attached.
[0003]
Such a split corrugated pipe main body 2 is made of synthetic resin, is lightweight, flexible , easy to construct, and low cost, and is widely used as a protective pipe for temporary cables. .
[0004]
[Problems to be solved by the invention]
Such a split corrugated pipe 1 is attached to a long body by opening the split portion 2b of the split corrugated pipe main body 2 when it is attached to the installed long body. In particular, in the case of a split split corrugated pipe main body 2, the split portion 2b of the split corrugated pipe main body 2 that has once been opened remains open. In order to close the open split portion 2b, as shown in FIG. 12, it is bound by the binding member 3 at an interval of about 1 to 2 m, but the seam is stuck at the place of binding, but it is separated from the binding member 3 in the longitudinal direction. In some cases, the split-opening portion 4 is generated and is stabilized in that state.
[0005]
Further, when the split corrugated tube body 2 is bent and laid, if the split portion 2b is located at the inside of the bend regardless of whether it is a half-split or double-split type, as shown in FIG. The split-opening part 4 will arise in the part 2b.
[0006]
Further, in the case where the split corrugated tube main body 2 is provided with the split portion 2b with a blade, if the blade is thick, the split opening portion 4 is generated over the entire length as shown in FIG. The split corrugated pipe body 2 is provided with a hinge portion 2c on the opposite side to the split portion 2b by 180 ° so that it can be easily attached to a long body.
[0007]
In addition, this split corrugated tube body 2 has a compressive strength that is weaker than that of a corrugated tube body that is not split, and when a load is applied, the state is changed from the state of FIG. 15A to the state of FIG. The split portion 2b is deformed to form a split opening portion 4, and one edge portion of the split portion 2b enters the split corrugated tube main body 2 to compress the long body, There is a risk of damaging the body.
[0008]
In FIGS. 12 to 15A and 15B, the split corrugated tube main body 2 is displayed with the corrugation omitted to simplify the display.
[0009]
Such a split corrugated pipe 1 is used as a protective pipe for a temporary cable in the station premises under construction (side of the track, etc.). There is an example in which a cable fire is caused by entering the split corrugated pipe body 2 from the split opening 4. After this accident, in order to close the split portion 2b of the split corrugated pipe body 2, the installation interval of the bundling member 3 must be reduced, or the pipe joints must be overlapped to eliminate the gap, There was a problem that it took construction time.
[0010]
The objective of this invention is providing the split corrugated pipe which can block | close the split opening part of a split corrugated pipe main body easily.
[0011]
[Means for Solving the Problems]
In the present invention, the split portion (2b) extending along the longitudinal direction of the peripheral wall portion is placed in the peripheral wall portion, and the split portion (2b) is opened to form the split opening portion (4). Targeting a split corrugated pipe having a corrugated pipe main body (2) and a split opening closing member (5) attached to the split corrugated pipe main body (2) for closing the split split section (4) And
[0012]
In the present invention, the split opening portion closing member (5) has a circumference longer than the opening width of the split opening portion (4) measured in the circumferential direction of the split corrugated pipe body (2) and is flexible. And a plurality of corrugated tube grips that are arranged at intervals in the longitudinal direction of the split opening portion closing member body (6) and are held by the split opening portion closing member main body. And a member (10). A protrusion (7) extending in the longitudinal direction of the split opening portion closing member main body (6) is projected on the inner side surface of the intermediate portion in the circumferential direction of the split opening closing portion main body (6). A plurality of holes (11) arranged at intervals in the longitudinal direction of the main body (6) are formed in the projection (7). The corrugated tube gripping member (10) is formed in a C shape so as to fit on the outer periphery of the split corrugated tube main body (2), and is provided in each of the plurality of holes (11) provided in the protrusion (7). It is inserted and held by the split opening portion closing member main body (6), the split opening portion closing member main body (6) closes the split opening portion (4), and the projection (7) is inserted into the split corrugated pipe main body (2). In the state of being fitted to the split opening portion (4), the corrugated tube gripping member (10) is fitted to the outer periphery of the split corrugated tube main body (2), and the split portion closing member (5) is inserted into the split wave. It has a structure supported by the attachment tube main body (2).
[0013]
When the split opening portion closing member is attached along the split opening portion of the split corrugated tube main body in this way, the split opening portion can be easily closed without increasing the bundling portion and the like. Therefore, the occurrence of an accident can be prevented.
[0014]
In this case, the split opening portion closing member has a circumferential length larger than the opening width of the split opening portion and has flexibility, and the split opening portion closing member main body is corrugated. You may comprise with the corrugated pipe holding member fixed to a pipe | tube main body .
[0015]
Further, as described above, the protrusion (7) extending in the longitudinal direction of the split opening portion closing member main body (6) is projected from the inner side surface of the intermediate portion in the circumferential direction of the split opening closing portion main body (6). If this is the case, the protrusion can be fitted into the split portion of the split corrugated pipe body to prevent the protrusion from moving in the circumferential direction. Moreover, according to this protrusion, the mechanical strength of the split part closing member main body can be improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Also in this case, the split corrugated tube main body is displayed with the corrugation omitted for easy display.
[0017]
1 and 2 show an example of a reference configuration of a split opening portion closing member used in the present invention, FIG. 1 is a perspective view of the split opening portion closing member of this example, and FIG. 2 shows a split opening portion closing member of this example. It is an end view of the longitudinal direction of a member.
[0018]
The split opening portion closing member 5 of this example has a circumferential length equal to or greater than the opening width of the split opening portion 4 measured in the circumferential direction of the above-described split corrugated pipe body 2, and has a flexible opening portion closing portion. The member body 6 is used. On the inner side surface of the split opening portion closing member main body 6, a protrusion 7 projects from an intermediate portion in the circumferential direction. A flange portion 8 projects from the tip of the protrusion 7. Such split opening portion closing member main body 6, protrusion 7 and flange portion 8 are formed of an olefin-based elastomer having flexibility and mechanical strength.
[0019]
FIG. 3 is a perspective view showing a reference configuration example of the split corrugated tube according to the present invention.
[0020]
In this example, in the split corrugated pipe 1 that accommodates and protects the long body 9, the split opening part that is open over the entire length of the split part 2b of the split corrugated pipe body 2 having a length of 4 m. 4 along the, member 5 closing split open portion length of 4m and having a flexible has a circumferential length greater than the open width of the split opening section 4 is mounted. The split opening portion closing member 5 includes a split opening portion closing member main body 6 having a circumferential length equal to or larger than the opening width of the split opening portion 4 and having flexibility, and the split opening portion closing member main body 6 is divided into waves. It is comprised by the bundling member 3 fixed to the attachment pipe main body 2. As shown in FIG. The binding members 3 are bound at intervals of about 2 m.
[0021]
When the split opening portion closing member 5 is attached along the split opening portion 4 of the split corrugated pipe main body 2 in this way, the split opening portion 4 can be easily closed without increasing the number of binding portions and the like. Therefore, the occurrence of an accident can be prevented.
[0022]
FIG. 4 is a perspective view showing another reference configuration example of the split corrugated pipe according to the present invention.
[0023]
In this example, the split corrugated pipe 1 that accommodates and protects the long body 9 is also opened over the entire length of the split section 2b of the split corrugated pipe body 2 having a length of 4 m. 4 along the, member 5 closing split open portion length of 4m and having a flexible has a circumferential length greater than the open width of the split opening section 4 is mounted. The split opening portion closing member 5 has a peripheral portion larger than the opening width of the split opening portion 4 and has a flexibility , and the flange portion 8 at the end of the projection 7 has a split portion. The opening corrugated tube main body 2 at the edge of the opening 4 is caught on the edge to prevent it from coming off. For this reason, in this example, the binding member 3 is omitted.
[0024]
5 and 6 show an embodiment of a split opening portion closing member used in the present invention, FIG. 5 is a perspective view of the split opening portion closing member of this example, and FIG. 6 is a split opening portion closing member of this example. FIG.
[0025]
The split opening portion closing member 5 of this example includes a split opening portion closing member main body 6 having a circumference longer than the opening width of the split opening portion 4 and having flexibility, and the split opening portion closing member main body 6. The corrugated tube holding member 10 is fixed to the split corrugated tube main body 2. Projections 7 extending in the longitudinal direction of the split opening portion closing member main body 6 project from the inner side surface of the middle portion in the circumferential direction of the split opening closing member main body 6, and are spaced apart in the longitudinal direction of the split opening closing member main body 6. A plurality of holes 11 arranged in an open manner are formed in the protrusion 7. These holes 11, in this example provided at 50cm intervals. A C-shaped corrugated tube holding member 10 made of synthetic resin or metal is inserted into the hole 11 at a predetermined position as shown in the figure.
[0026]
In this case, the corrugated tube gripping member 10 is the same in that the front shape is C-shaped as shown in FIG. 7A, but its longitudinal cross-sectional shape is as shown in FIG. 7B. A wedge shape, or a U-shape as shown in FIG. 7C, and the inner peripheral side portion thereof is fitted into the valley portion of the corrugation 2a of the split corrugated tube body 2 as shown in FIG. 7 (D), when an inverted U-shape is formed and the inner peripheral side portion thereof is fitted to the crest portion of the corrugated 2a of the split corrugated tube main body 2 as shown in FIG. 11, the corrugated tube It is preferable that the gripping member 10 is not easily detached from the split corrugated pipe body 2 and is not displaced in the longitudinal direction of the split corrugated pipe body 2.
[0027]
FIG. 8 is a perspective view showing the split corrugated tube according to the present embodiment .
[0028]
In this example, the split corrugated pipe 1 that accommodates and protects the long body 9 is also opened over the entire length of the split section 2b of the split corrugated pipe body 2 having a length of 4 m. 4 along the, member 5 closing split open portion length of 4m and having a flexible has a circumferential length greater than the open width of the split opening section 4 is mounted. As the split opening portion closing member 5, the one shown in FIGS. 5 and 6 is used. That is, the split opening portion closing member 5 has a projection 7 fitted in the split opening portion 4 of the split corrugated pipe main body 2, and the split opening portion closing member body 6 closes the split opening portion 4 to form a C-shaped wave. The spigot tube gripping member 10 is fitted on the outer periphery of the split corrugated tube main body 2 and supported by the split corrugated tube main body 2.
[0029]
FIG. 9 is an end view in the longitudinal direction showing another reference configuration example of the split portion closing member used in the present invention.
[0030]
The split opening portion closing member 5 of this example has a length in the circumferential direction of the split opening portion closing member main body 6 that is longer than a half circumference of the split corrugated tube main body 2, and the split corrugated tube main body to be attached. 2 has a long shape along the longitudinal direction.
[0031]
FIG. 10 is a cross-sectional view showing a reference configuration example of the split corrugated pipe according to the present invention.
[0032]
In this example, the split corrugated pipe 1 that accommodates and protects the long body 9 covers the split opening 4 of the split corrugated pipe main body 2 and is fitted with a split opening closing member 5. It is installed. In this example, since the length in the circumferential direction of the split opening closing member main body 6 is more than half the circumference of the split corrugated pipe main body 2, it also serves as the corrugated pipe gripping member 10, and is simple. It has become a shape.
[0033]
In the above example, the case where the split opening portion closing member 5 is mounted over the entire length of the split corrugated pipe main body 2 has been shown, but the present invention is not limited to this, and as shown in FIG. You may mount | wear so that only the part in which the split part 4 is formed may be covered by the bending part of the corrugated pipe main body 2. FIG. In this case, the split opening portion closing member main body 6 is used after being cut to a required length with a cutter knife or the like.
[0034]
【The invention's effect】
The split corrugated pipe of the present invention has a circumferential length equal to or greater than the opening width of the split open part of the split corrugated pipe body and closes the split part with a split part closing member body having flexibility, and a protrusion. Fit the object into the split opening part of the split corrugated pipe body, fit the C-shaped corrugated pipe gripping member to the outer periphery of the split corrugated pipe body, and attach the split part closing member to the split corrugated pipe body Since it has such a structure, it is possible to easily close the split opening portion without increasing the binding portion or the like. Therefore, the occurrence of an accident such as a cable fire can be prevented.
[0035]
In the present invention, a protrusion extending in the longitudinal direction of the split opening portion closing member body is provided on the inner side surface of the intermediate portion in the circumferential direction of the split opening portion closing member body, and this protrusion is provided as a split corrugated tube. Since it fits in the split part of the main body, it is possible to prevent the split part closing member from moving in the circumferential direction. Moreover, if the projection is provided in this way, the mechanical strength of the split opening portion closing member main body can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a reference configuration example of a split opening portion closing member used in the present invention.
FIG. 2 is an end view in the longitudinal direction of the split opening portion closing member shown in FIG.
FIG. 3 is a perspective view showing a reference configuration example of the split corrugated pipe according to the present invention.
FIG. 4 is a perspective view showing another reference configuration example of the split corrugated pipe according to the present invention.
FIG. 5 is a perspective view showing an embodiment of a split opening portion closing member used in the present invention.
FIG. 6 is an assembled perspective view of a split opening portion closing member used in the present invention .
FIG. 7A is a front view of three other examples of corrugated tube gripping members used in the split opening portion closing member according to the embodiment of the present invention , and FIGS. It is sectional drawing of the various examples of the longitudinal cross-sectional shape.
FIG. 8 is a perspective view showing an embodiment of a split corrugated pipe according to the present invention.
FIG. 9 is an end view in the longitudinal direction showing a reference configuration example of a split opening portion closing member used in the split corrugated pipe according to the present invention.
FIG. 10 is a cross-sectional view showing another reference configuration example of the split corrugated pipe according to the present invention.
FIG. 11 is a side view of a part of a conventional split corrugated pipe in the longitudinal direction.
FIG. 12 is a perspective view of a conventional split corrugated tube configured to close a split opening portion.
FIG. 13 is a perspective view of a conventional split corrugated pipe that is bent and laid.
FIG. 14 is a cross-sectional view of still another example of a conventional split corrugated tube.
15A and 15B are cross-sectional views before and after a load is applied to a conventional split corrugated pipe.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Split corrugated pipe 2 Split corrugated pipe main body 2a Corrugated 2b Split part 2c Hinge part 3 Bundling member 4 Split part 5 Split part block member 6 Split part block member body 7 Projection 8 Flange part 9 Length Scale 10 Corrugated tube gripping member 11 Hole

Claims

An split corrugated pipe body in which a split portion (2b) extending along the longitudinal direction of the peripheral wall portion is placed in the peripheral wall portion, and the split portion (2b) is opened to form a split opening portion (4) In a split corrugated pipe comprising (2) and a split opening portion closing member (5) attached to the split corrugated pipe main body (2) in order to close the split portion (4),
The split opening closing member (5)
A split opening portion closing member main body (6) having a circumferential length equal to or larger than an opening width of the split opening portion (4) measured in a circumferential direction of the split corrugated pipe main body (2);
A plurality of corrugated tube gripping members (10) disposed at intervals in the longitudinal direction of the split opening portion closing member main body (6) and held by the split opening portion closing member main body;
With
A protrusion (7) extending in the longitudinal direction of the split opening portion closing member main body (6) is provided on the inner side surface of the middle portion in the circumferential direction of the split opening closing member main body (6), and the split opening portion A plurality of holes (11) arranged at intervals in the longitudinal direction of the closing member body (6) are formed in the projection (7),
The corrugated tube gripping member (10) is formed in a C shape so as to fit on the outer periphery of the split corrugated tube body (2), and has a plurality of holes (11) provided in the protrusion (7). Are inserted into each of the split opening closing member main body (6),
In the state where the split part (4) is closed by the split part closing member main body (6), and the projection (7) is fitted to the split part (4) of the split corrugated pipe body (2). The corrugated tube gripping member (10) is fitted on the outer periphery of the split corrugated tube main body (2), and the split opening portion closing member (5) is supported by the split corrugated tube main body (2). Was
A split corrugated tube characterized by having a structure.