JPH0746741A - Method and structure for cutting water off in cable duct - Google Patents
Method and structure for cutting water off in cable ductInfo
- Publication number
- JPH0746741A JPH0746741A JP5192471A JP19247193A JPH0746741A JP H0746741 A JPH0746741 A JP H0746741A JP 5192471 A JP5192471 A JP 5192471A JP 19247193 A JP19247193 A JP 19247193A JP H0746741 A JPH0746741 A JP H0746741A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- cable duct
- resin
- duct
- water stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 25
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 29
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 12
- 239000006260 foam Substances 0.000 claims abstract description 8
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000008961 swelling Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Cable Accessories (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地中に埋設されている
ケーブルダクトを水止するための方法および水止構造体
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a waterproof structure for waterproofing a cable duct buried underground.
【０００２】[0002]
【従来の技術】ケーブル敷設の際ケーブルをダクト内に
収容することは知られいるが、このダクト内は常に浸水
状態にあり、この流水はケーブルの品質管理上重要な課
題である。即ち、ケーブルダクトに侵入する水はダクト
を通してケーブルの電流制御装置が設けられている領域
内に流入滴下し、その室内は高湿度となり、湿潤雰囲気
となり、これにより電気の絶縁障害を誘起し、更に金属
から成る機器の腐食或いは発錆を招き、ケーブルダクト
内のケーブル或いは機器の保守管理が困難である。2. Description of the Related Art It is known to accommodate a cable in a duct when laying the cable, but the duct is always in a flooded state, and this running water is an important issue in quality control of the cable. That is, the water that enters the cable duct flows through the duct and drops into the area where the current control device of the cable is provided, and the inside of the room becomes high humidity and a humid atmosphere, which induces electrical insulation failure, and Corrosion or rusting of the equipment made of metal is caused, and it is difficult to maintain and manage the cable or equipment in the cable duct.
【０００３】このような欠点を回避するための水止方法
として、ケーブルダクトに粘土、急結セメント等を使用
して水止が行われて来た。しかし、この水止方法ではそ
の使用される水止材により導線の被覆体であるゴム、樹
脂等を損傷するので、一般には使用されていない。As a water stop method for avoiding such a drawback, water stop has been performed by using clay, quick-setting cement or the like for the cable duct. However, this water stop method is not generally used because the water stop material used damages rubber, resin, etc., which are the coverings of the conductors.
【０００４】更に、従来使用されている水止方法とし
て、ダクト内にスペーサを適当な長さに切り、ダクトの
内径よりも少し太めの大きさになるまでケーブルに巻付
け、ウレタンフオームをダクト径より大きめにケーブル
に巻き、ダクト内に押込みダクトを塞ぐ。次いで発泡樹
脂を注入し、発泡させる方法が知られている。Further, as a conventionally used water stop method, a spacer is cut into an appropriate length in the duct, and it is wound around the cable until the size is slightly thicker than the inner diameter of the duct, and a urethane foam is used for the duct diameter. Wrap it around the cable in a larger size and push it into the duct to close the duct. Next, a method is known in which a foamed resin is injected and foamed.
【０００５】しかしこの方法では、上記のようにダクト
内に多数本の撚られたケーブルが挿入されている場合、
撚り間隙内への樹脂の侵入が限られ、ケーブルは樹脂に
より完全に覆われることがなく、ケーブルと被覆樹脂と
の間に間隙が生じ、浸水の原因となる。また、ケーブル
ダクト内に流水がある状態では作業が困難である。However, in this method, when a large number of twisted cables are inserted in the duct as described above,
The penetration of the resin into the twist gap is limited, the cable is not completely covered with the resin, and a gap is created between the cable and the coating resin, which causes water leakage. In addition, it is difficult to work with running water in the cable duct.
【０００６】更に、ケーブルダクト内に収容されるケー
ブルは単線或いは複芯の撚線であり、かつ電気負荷やそ
の他の原因でダクト内で安定せずケーブル長手方向で移
動することもあるが、公知の構造にあってはこの移動に
対処することが不可能である。Further, the cable accommodated in the cable duct is a single wire or a multi-core stranded wire and may move in the longitudinal direction of the cable without being stabilized in the duct due to an electric load or other causes. This structure cannot cope with this movement.
【０００７】また、このようなケーブルダクトにあって
不利なことは、ケーブルダクトの内断面の円形は数種類
だがケーブルの断面形状は多様であり、特に多芯ケーブ
ルにあっては線間の間隙や外形は多様である。この多様
なケーブル断面を遮蔽水構造をもったケーブルダクトに
一律に収容するのに困難があることである。A disadvantage of such a cable duct is that although the cable duct has several circular inner cross-sections, the cable has various cross-sectional shapes. There are various external shapes. It is difficult to uniformly accommodate these various cable cross sections in a cable duct having a shielding water structure.
【０００８】[0008]
【発明が解決しようとする課題】上記のような公知技術
を基に、本発明の根底をなす課題は、従来知られている
ケーブルダクトを水止するための方法および装置が有す
る上記の諸種の欠点を有していない方法および水止構造
体を提供することである。On the basis of the above-mentioned known techniques, the problem underlying the present invention is that of the above-mentioned various types of methods and devices for waterproofing cable ducts known to date. It is an object of the present invention to provide a method and a water stop structure that do not have drawbacks.
【０００９】[0009]
【課題を解決するための手段】上記の課題は本発明によ
り、ケーブルダクトの空域内にケーブルの太さに相応し
た凹部を備えた合成物質から成る下円筒半割り体を挿入
し、この凹部にケーブルを載置し、他方の同様な凹部を
備え同じ材料から成る上円筒半割り体を合体し、次いで
注入装置の針を上記の上円筒半割り体の側面から刺通
し、上円筒半割り体と下円筒半割り体とから成る空域に
ウレタン樹脂をを注入し、この空域中での樹脂発泡の下
にケーブルを固定することによって解決される。SUMMARY OF THE INVENTION According to the present invention, the above object is to insert a lower cylindrical half body made of synthetic material, which has a recess corresponding to the thickness of the cable, into the space of the cable duct, and to insert the recess into this recess. A cable is placed, and an upper cylinder half body made of the same material and having a similar recess on the other side is combined, and then the needle of the injection device is pierced from the side surface of the upper cylinder half body to form the upper cylinder half body. This is solved by injecting a urethane resin into an air space composed of the lower cylinder half body and fixing the cable under the resin foam in this air space.
【００１０】更に本発明による他の構成により、ケーブ
ルダクトの空域内にケーブルの太さに相応した凹部を備
えた合成物質から成る下円筒半割り体が挿入され、この
凹部にケーブルが載置され、次いで注入装置により載置
されたケーブル上にウレタン樹脂が注入され、次いで上
円筒半割り体が合体される。According to another aspect of the present invention, a lower cylindrical half body made of a synthetic material having a recess corresponding to the thickness of the cable is inserted into the space of the cable duct, and the cable is placed in this recess. Then, the urethane resin is injected onto the cable placed by the injection device, and then the upper cylindrical half body is united.
【００１１】上記方法を実施するための水止構造体の特
徴とするところは、この水止構造体が、ケーブルダクト
の空域内にケーブルの太さに相応した凹部を備えた合成
物質から成る下円筒半割り体と、上記下円筒半割り体の
凹部と等しい径を備えた凹部、下方に水止ピンが挿入さ
れる導水孔を備えた、合成物質から成る下円筒半割り体
と、から成り、この場合、両円筒半割り体を合体するた
めの凸部と凹部とがこれらの円筒半割り体の円弧端部に
形成されていること、ことである。A feature of the water stop structure for carrying out the above method is that the water stop structure is made of synthetic material with a recess corresponding to the thickness of the cable in the space of the cable duct. A cylindrical half body, a concave part having the same diameter as the concave part of the lower cylindrical half body, and a lower cylindrical half body made of a synthetic material, having a water guide hole into which a water stop pin is inserted, In this case, a convex portion and a concave portion for joining the two cylinder halves are formed at the arc end portions of these cylinder halves.
【００１２】以下に添付した図面に図示した実施例につ
き本発明を詳しく説明する。Hereinafter, the present invention will be described in detail with reference to the embodiments illustrated in the accompanying drawings.
【００１３】[0013]
【実施例】図１、図３、図５、図７，図８および図１０
は本発明による水止方法の各工程を示した図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 3, 5, 7, 8 and 10.
FIG. 3 is a diagram showing each step of the water stop method according to the present invention.
【００１４】図２、図４および図６はこの方法を実施す
るための水止構造体の断面図である。先ず、図２に示し
た下円筒半割り体１をケーブルダクト５中に図１および
図１０に示すように挿入する。この下円筒半割り体１
は、ケーブルダクトの空域内にケーブルの太さに相応し
た凹部２を加工することが可能な側壁と、場合によって
はここには図示しなかったが段差を付して更に深く凹状
に切欠いた部分を有している合成物質から成り、その長
さはケーブル６の支持が適切に行われる程の長さであれ
ばよい。この下円筒半割り体１は上記のように切欠き加
工により凹部２を有しているが、その径はその都度のケ
ーブル６の径に相応している。FIGS. 2, 4 and 6 are sectional views of a water stop structure for carrying out this method. First, the lower cylindrical half body 1 shown in FIG. 2 is inserted into the cable duct 5 as shown in FIGS. 1 and 10. This lower cylinder half
Is a side wall capable of processing a recess 2 corresponding to the thickness of the cable in the air space of the cable duct, and a part not shown here, which is not shown in the drawing, and which is notched deeper into a concave shape. It may be made of a synthetic material having a length such that the cable 6 is properly supported. The lower cylindrical half body 1 has the recess 2 by the notch processing as described above, and the diameter thereof corresponds to the diameter of the cable 6 in each case.
【００１５】この下円筒半割り体と以下に述べる上円筒
半割り体は、上記の下円筒半割り体１と全く対称的に構
成されており、従って同様に加工される凹部２を有して
いるが、この両円筒半割り体１，１′の凹部２のの外周
面には、ケーブルの長手方向での摺動を容易にするため
に、撥水性油脂、例えばシリコン、グリース等の油脂を
塗布しておくのが有利である。これにより、ケーブルダ
クトの揺れ状態でのケーブルの挙動に対する追従が可能
となる。This lower cylinder half-split body and the upper cylinder half-split body, which will be described below, are constructed symmetrically to the above-mentioned lower cylinder half-split body 1, and therefore have a recess 2 which is similarly processed. However, in order to facilitate sliding in the longitudinal direction of the cable, a water-repellent oil or fat, for example, oil such as silicone or grease is provided on the outer peripheral surface of the recess 2 of the two cylinder halves 1, 1 '. It is advantageous to apply it. This makes it possible to follow the behavior of the cable in the swaying state of the cable duct.
【００１６】更にこの下円筒半割り体１はその下方中央
に導水孔７を有しており、この導水孔７を介して常に流
れている水の排水が行われる。ここで図３に示すよう
に、この凹部２内の空域５′にケーブ６を挿入する。こ
の際、上記のように凹部２の径がケーブルの径に適合し
ているのでケーブルは凹部２の空隙５′に最適な適合状
態で挿入される。Further, the lower cylindrical half body 1 has a water guiding hole 7 in the lower center thereof, and the water constantly flowing through the water guiding hole 7 is discharged. Here, as shown in FIG. 3, the cave 6 is inserted into the air space 5 ′ in the recess 2. At this time, since the diameter of the recess 2 is adapted to the diameter of the cable as described above, the cable is inserted into the void 5'of the recess 2 in an optimally fitted state.
【００１７】またこの下円筒半割り体１はその円弧の終
端に相手方円筒半割り体である上円筒半割り体１′との
合体のための係合を保証する凹状の切欠き４と凸状の突
起３とを備えている。Further, the lower cylindrical half-split body 1 has a concave notch 4 and a convex shape at the end of the circular arc for ensuring engagement for joining with the upper cylindrical half-split body 1'which is a counterpart cylindrical half-split body. And the projection 3 thereof.
【００１８】ここで上記の下円筒半割り体１と同様な材
質の合成物質から成り、かつ同じ径の凹部２を備えてい
る上円筒半割り体１′−この上円筒半割り体１′は下円
筒半割り体１と全く対称的に形成されているのでその細
部は図面に示しなかった−を、図５および図６に示すよ
うに、その円弧縁部を介してケーブルが敷設されている
下円筒半割り体１上に載置し、加圧下に両円筒半割り体
を合体させる（図１０において参照符号Ａで示した作業
状態参照）。この際、この上円筒半割り体１′と下円筒
半割り体１にはそれらの円弧の終端縁部に、円筒半割り
体の長手方向で延在して凹状の切欠き４と凸状の突起３
とが形成されているので合体は確実に行われる（この作
業状態は図１１参照）。Here, an upper cylindrical half body 1 ', which is made of a synthetic material having the same material as that of the lower cylindrical half body 1 and has a recess 2 having the same diameter, is used as the upper cylindrical half body 1'. The details are not shown in the drawing because they are formed symmetrically with the lower cylinder half 1, -as shown in FIGS. 5 and 6, the cable is laid via its arc edge. It is placed on the lower half cylinder 1 and the two half cylinders are combined under pressure (see the working state indicated by reference symbol A in FIG. 10). At this time, the upper cylinder half-split body 1'and the lower cylinder half-split body 1 are provided with concave notches 4 extending in the longitudinal direction of the cylindrical half-split bodies at the end edges of the arcs thereof, and a concave cutout 4. Protrusion 3
Since the and are formed, the combination is surely performed (see FIG. 11 for this working state).
【００１９】このようにして合体工程が終了した後、図
７に示すように、樹脂注入器１５の針１６を上円筒半割
り体１′の側面に刺通し、孔９を介して樹脂８、特に発
泡ウレタンを両円筒半割り体１，１′の中央に形成され
る空域１７に注入する。これにより樹脂はケーブル５を
囲繞するように周囲に侵入する。After the merging process is completed in this way, as shown in FIG. 7, the needle 16 of the resin injector 15 is pierced into the side surface of the upper cylindrical half body 1'and the resin 8, especially the resin 8, through the hole 9. Urethane foam is injected into the air space 17 formed in the center of the two cylinder halves 1, 1 '. As a result, the resin enters the surroundings so as to surround the cable 5.
【００２０】この時点にあっては未だ樹脂は発泡せず、
従って完全なケーブルダクト５の密封は行われていな
い。本発明にあっては、上記の両円筒半割り体が合体さ
れる構成と異なり、図３に示した作業工程の段階で、即
ち下円筒半割り体１上においてケーブル５が開放されて
いる状態で、この載置されたケーブルに樹脂注入器１５
により樹脂を塗布し、次いで上円筒半割り体１を下円筒
半割り体１′と合体することも可能である。この作業様
式にあっては、ケーブルが撚りケーブルから成る時、こ
のケーブルの撚り間隙に樹脂を注入することができ、ケ
ーブルのより確実な固定が可能となる。At this point, the resin has not yet foamed,
Therefore, the complete cable duct 5 is not completely sealed. In the present invention, unlike the above-mentioned configuration in which both the cylindrical half halves are combined, the state in which the cable 5 is opened at the stage of the work process shown in FIG. 3, that is, on the lower cylindrical half halve 1. Then, the resin injector 15
It is also possible to apply the resin by means of and then combine the upper cylinder half-split body 1 with the lower cylinder half-split body 1 '. In this work mode, when the cable is a twisted cable, the resin can be injected into the twist gap of the cable, so that the cable can be more securely fixed.
【００２１】上記の作業工程は、水止構造体をケーブル
ダクト５から外方へと引出した状態で或いはケーブルダ
クト５内に水止構造体を挿入した状態でおたなうこきが
可能である。[0021] In the above-mentioned working steps, the water stop structure can be pulled out from the cable duct 5 or the water stop structure can be inserted into the cable duct 5. .
【００２２】上記のようにして注入された水止構造体は
ケーブル５の解体・交換の際容易に工具等で破砕可能で
ある。また、上記のようにして注入された水止構造体
は、これがケーブルと一体的に結合するまでは、常時流
れている水圧により流されることがない。通常、水は導
水孔７を経て流れるが（図７参照）が、この導水孔７が
流水量に比して容量が不足している際は強制的に適当な
吸引手段で吸引される。The water stop structure injected as described above can be easily crushed with a tool or the like when the cable 5 is disassembled and replaced. Further, the water stop structure injected as described above is not flowed by the water pressure constantly flowing until it is integrally connected with the cable. Normally, water flows through the water guiding hole 7 (see FIG. 7), but when the water guiding hole 7 is insufficient in capacity compared to the amount of flowing water, it is forcibly sucked by an appropriate suction means.
【００２３】ここで、樹脂８は時間経過と共に空域１７
内で発泡し始め（図５および図７参照）、更に時間が経
ると図８に示したように空域１７の全空間を充たし、完
全に発泡すると、その膨張力により両円筒半割り体１，
１′がケーブルダクト５の内周面に押圧される。同時
に、両円筒半割り体１，１′のケーブル導出部２１と２
２も封隙される。Here, the resin 8 has an air space 17 as time passes.
8 begins to foam (see FIGS. 5 and 7), and as time passes, it fills the entire space 17 as shown in FIG. 8, and when it completely foams, both cylinder halves 1, due to the expansion force.
1'is pressed against the inner peripheral surface of the cable duct 5. At the same time, the cable lead-out parts 21 and 2 of the two cylinder halves 1, 1 '
2 is also sealed.
【００２４】上記の全工程が終了した後、水止ピン２０
が挿入される（図９参照）。図１１はケーブルダクト５
内において両円筒半割り体１，１′を合体した状態で示
した図である。After completion of all the above steps, the water stop pin 20
Is inserted (see FIG. 9). Figure 11 shows the cable duct 5
It is a figure shown in the state where both cylindrical half-parts 1 and 1'were united inside.
【００２５】[0025]
【発明の効果】上記の水止方法および水止構造体によ
り、上記の様な欠点を有している従来の公知の方法およ
び水止構造体に比して水止がより確実に行われ、特に多
数のケーブルが撚られて敷設されている際に撚り間隙内
への樹脂の侵入が確実に行われる。また、このようなケ
ーブルダクトにあっては、ある時期ケーブルは解体・交
換しなければならず、この目的のため水止構造体は容易
に工具等で破砕されて取外し可能である。EFFECTS OF THE INVENTION The above water stop method and water stop structure provide more reliable water stop compared to the conventional known methods and water stop structures having the above-mentioned drawbacks. Particularly, when a large number of cables are twisted and laid, the resin is surely intruded into the twist gap. Further, in such a cable duct, the cable must be disassembled and replaced for a certain period of time, and for this purpose, the water stop structure can be easily crushed with a tool or the like and removed.
【００２６】更に、本発明による水止方法および水止構
造体により、ケーブルダクト中の電気機器の腐食、錆の
発生が阻止され、保守・管理が容易となる。このケーブ
ルダクト中に敷設されたケーブルもまた折損、破壊、湿
潤から保護される。Further, the water stop method and the water stop structure according to the present invention prevent corrosion and rusting of electric equipment in the cable duct and facilitate maintenance and management. The cables laid in this cable duct are also protected from breakage, breakage and wetting.
【図１】本発明による水止施工工程を示す図である。FIG. 1 is a diagram showing a water stop construction step according to the present invention.
【図２】下円筒半割り体の断面図であるがケーブルを凹
部に載置されていない状態で示した図である。FIG. 2 is a cross-sectional view of a lower cylindrical half body, but shows a cable in a state where it is not placed in a recess.
【図３】本発明による水止施工工程を示す図である。FIG. 3 is a diagram showing a water stop construction step according to the present invention.
【図４】図３の切断線Ａ−ウで示した、下円筒半割り体
の断面図であるがケーブルを凹部に載置した状態で示し
た図である。FIG. 4 is a cross-sectional view of the lower cylindrical half body taken along the section line A-C in FIG. 3, but showing the cable placed in a recess.
【図５】本発明による水止施工工程を示す図である。FIG. 5 is a diagram showing a water stop construction step according to the present invention.
【図６】両円筒半割り体を合体し、樹脂を注入した状態
で示した図である。FIG. 6 is a view showing a state in which both cylinder halves are combined and resin is injected.
【図７】本発明による水止施工工程を示す図であるが、
特に樹脂注入工程を示す図である。FIG. 7 is a diagram showing a water stop construction process according to the present invention.
It is a figure which shows a resin injection process especially.
【図８】本発明による水止施工工程を示す図であるが、
注入された樹脂が完全に発泡した状態を示す図である。FIG. 8 is a diagram showing a water stop construction process according to the present invention.
It is a figure which shows the state which the injected resin completely foamed.
【図９】水止ピンが挿入され、ケーブルダクト内に水が
充満して来た状態を示す図である。FIG. 9 is a view showing a state in which a water stop pin is inserted and the cable duct is filled with water.
【図１０】本発明による水止施工工程を示す図である
が、下円筒半割り体がケーブルダクト内に挿入されてい
るが未だ両円筒半割り体の空域内に未だ樹脂が充填され
ていな状態で示した図である。FIG. 10 is a view showing a water stop construction step according to the present invention, in which the lower cylindrical half body is inserted into the cable duct, but the resin is not yet filled in the space of both cylindrical half bodies. It is the figure shown in the state.
【図１１】両円筒半割り体を合体した状態で、しかし両
円筒半割り体の空域内に未だ樹脂が充填されていな状態
で示した図である。FIG. 11 is a view showing a state in which the two cylinder halves are combined, but a state in which the resin is not yet filled in the air space of the two cylinder halves.
１ 下円筒半割り体 １′ 上円筒半割り体 ２ 凹部 ３ 突起 ４ 切欠き ５ ケーブルダクト ５′ ケーブル空域 ６ ケーブル ７ 導水孔 ８ 樹脂 ９ 注入孔 １５ 樹脂注入器 １６ 注入針 １７ 空域 ２０ 水止ピン ２１，２２ ケーブルとケーブルダクト円筒半割り体間
の間隙1 Lower cylinder half-divided body 1'Upper cylinder half-divided body 2 Recessed portion 3 Protrusion 4 Notch 5 Cable duct 5'Cable space 6 Cable 7 Water guide hole 8 Resin 9 Injection hole 15 Resin injector 16 Injection needle 17 Space area 20 Water stop pin Gap between the cable and the cylindrical half of the cable duct
Claims (3)
止するための方法において、ケーブルダクト（５）の空
域（５′）内にケーブル（６）の太さに相応した凹部
（２）を備えた合成物質から成る下円筒半割り体（１）
を挿入し、この凹部にケーブルを載置し、他方の同様な
凹部を備え同じ材料から成る上円筒半割り体（１′）を
合体し、次いで注入装置（１５）の針（１６）を上記の
上円筒半割り体（１′）の側面から刺通し、上円筒半割
り体（１′）と下円筒半割り体（１）とから成る空域
（１７）にウレタン樹脂（８）を注入し、この空域中で
の樹脂発泡の下にケーブル（６）を固定することを特徴
とする、ケーブルダクトを水止するための方法。1. A method for waterproofing a cable duct buried in the ground, wherein a recess (2) corresponding to the thickness of the cable (6) is provided in an empty space (5 ') of the cable duct (5). Lower cylinder half made of synthetic material with (1)
And place the cable in this recess, merge the upper cylindrical halves (1 ') of the same material with the other similar recess, and then insert the needle (16) of the injection device (15) above From the side surface of the upper half cylinder (1 '), the urethane resin (8) is injected into the space (17) consisting of the upper half cylinder (1') and the lower half cylinder (1), Method for waterproofing a cable duct, characterized in that the cable (6) is fixed under the resin foam in this air space.
にケーブル（６）の太さに相応した凹部（２）を備えた
合成物質から成る下円筒半割り体（１）を挿入し、この
凹部にケーブルを載置し、次いで注入装置（１５）によ
り載置されたケーブル上にウレタン樹脂（８）を注入
し、次いで上円筒半割り体（１′）を合体することを特
徴とする請求項１に記載のケーブルダクトを水止するた
めの方法。2. A lower cylindrical half body (1) made of synthetic material having a recess (2) corresponding to the thickness of the cable (6) is inserted into the space (5 ') of the cable duct (5). The method is characterized in that a cable is placed in this recess, then a urethane resin (8) is injected onto the cable placed by an injecting device (15), and then the upper cylindrical half body (1 ') is united. A method for waterproofing a cable duct according to claim 1.
止するための水止構造体において、この水止構造体が、 ケーブルダクト（５）の空域（５′）内にケーブル
（６）の太さに相応した凹部（２）を備えた合成物質か
ら成る下円筒半割り体（１）と、 上記下円筒半割り体（１′）の凹部（２）と等しい径を
備えた凹部（２）、下方に水止ピン（２０）が挿入され
る導水孔（７）を備えた、合成物質からなる下円筒半割
り体（１）と、 から成り、 この場合、両円筒半割り体（１，１′）を合体するため
の凸部（３）と凹部（４）とがこれらの円筒半割り体の
円弧端部に形成されていること、 を特徴とするケーブルダクトを水止するための水止構造
体。3. A water stop structure for waterproofing a cable duct buried underground, wherein the water stop structure is a cable (6) in an air space (5 ') of the cable duct (5). A lower cylindrical half body (1) made of a synthetic material having a concave portion (2) corresponding to the thickness of the lower cylindrical half body (1) and a concave portion (2) having a diameter equal to that of the concave portion (2) of the lower cylindrical half body (1 '). 2) a lower cylindrical half body (1) made of a synthetic material, having a water guide hole (7) into which a water stop pin (20) is inserted, and, in this case, both cylindrical half bodies ( To stop the cable duct, characterized in that a convex part (3) and a concave part (4) for joining the 1, 1 ') are formed at the circular arc end parts of these cylindrical halves. Water stop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5192471A JP3022072B2 (en) | 1993-08-03 | 1993-08-03 | Method of stopping water in a cable duct and water stopping structure therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5192471A JP3022072B2 (en) | 1993-08-03 | 1993-08-03 | Method of stopping water in a cable duct and water stopping structure therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0746741A true JPH0746741A (en) | 1995-02-14 |
| JP3022072B2 JP3022072B2 (en) | 2000-03-15 |
Family
ID=16291849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5192471A Expired - Lifetime JP3022072B2 (en) | 1993-08-03 | 1993-08-03 | Method of stopping water in a cable duct and water stopping structure therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3022072B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1323906A2 (en) | 2001-12-28 | 2003-07-02 | Honda Giken Kogyo Kabushiki Kaisha | Engine operated machine system |
| KR100623162B1 (en) * | 2006-01-10 | 2006-09-15 | 주식회사 이레이엔지 | Leakage prevention device of electric pipe joint |
-
1993
- 1993-08-03 JP JP5192471A patent/JP3022072B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1323906A2 (en) | 2001-12-28 | 2003-07-02 | Honda Giken Kogyo Kabushiki Kaisha | Engine operated machine system |
| US6775981B2 (en) | 2001-12-28 | 2004-08-17 | Honda Giken Kogyo Kabushiki Kaisha | Engine operated machine system |
| KR100623162B1 (en) * | 2006-01-10 | 2006-09-15 | 주식회사 이레이엔지 | Leakage prevention device of electric pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3022072B2 (en) | 2000-03-15 |
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