JPH10267182A - Repairing member - Google Patents
Repairing memberInfo
- Publication number
- JPH10267182A JPH10267182A JP9043982A JP4398297A JPH10267182A JP H10267182 A JPH10267182 A JP H10267182A JP 9043982 A JP9043982 A JP 9043982A JP 4398297 A JP4398297 A JP 4398297A JP H10267182 A JPH10267182 A JP H10267182A
- Authority
- JP
- Japan
- Prior art keywords
- saddle
- peripheral surface
- diameter
- cylindrical portion
- repair material
- 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.)
- Withdrawn
Links
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、埋設本管と、この
埋設本管の外周面に取り付けられた取付管との接合部の
止水を行う補修材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair material for stopping water at a joint between a buried main pipe and a mounting pipe attached to an outer peripheral surface of the buried main pipe.
【０００２】[0002]
【従来の技術】従来より、埋設本管と、この埋設本管の
外周面に取り付けられた取付管との接合部の漏水補修を
行う補修方法として、ポリエステル樹脂などを含浸させ
た樹脂マットを使用する補修方法が提案されている（例
えば、特開平６−１０３９９号公報参照）。2. Description of the Related Art Conventionally, a resin mat impregnated with a polyester resin or the like has been used as a repairing method for repairing water leakage at a junction between a buried main pipe and a mounting pipe attached to an outer peripheral surface of the buried main pipe. (See, for example, JP-A-6-10399).
【０００３】また、ゴムなどの弾性材料によって、取付
管に挿入する挿入筒と、埋設本管に当接するフランジ部
とを一体に成形した補強パッドを使用する補修方法も提
案されている（特開昭６３−１６７１９３号公報参
照）。Further, a repairing method using a reinforcing pad in which an insertion tube inserted into a mounting tube and a flange portion abutting on a buried main tube are integrally formed with an elastic material such as rubber has been proposed (Japanese Patent Laid-Open Publication No. H11-163873). See JP-A-63-167193).
【０００４】[0004]
【発明が解決しようとする課題】しかし、樹脂マットを
補修材として使用する場合、含浸する樹脂の性状のばら
つきや、ポットライフのバラツキなどを生じる。また、
樹脂硬化時間が長く、施工速度が遅くなるといった不都
合を生じる。さらに、下水道管などの水場での施工の場
合、充分な接着性や水密性を得ることができないといっ
た不都合を生じることとなる。However, when a resin mat is used as a repair material, variations in properties of the impregnated resin and variations in pot life occur. Also,
Inconveniences such as a long resin curing time and a low application speed occur. Further, in the case of construction in a water place such as a sewer pipe, there arises a disadvantage that sufficient adhesiveness and watertightness cannot be obtained.
【０００５】また、上記従来の弾性材料によって構成し
た補強パッドの場合、挿入筒と取付管との間の充分な水
密性を確保するため、取付管に挿入筒を圧入したり接着
したりして密着させなければならない。しかし、挿入筒
を圧入するだけでは、充分な水密性を得ることができな
い。Further, in the case of the reinforcing pad made of the above-mentioned conventional elastic material, in order to secure sufficient watertightness between the insertion tube and the mounting tube, the insertion tube is pressed into or adhered to the mounting tube. Must be in close contact. However, sufficient watertightness cannot be obtained only by press-fitting the insertion tube.
【０００６】また、接着する場合は、挿入筒の外周面に
あらかじめ接着剤を塗布した状態として埋設本管側から
挿入筒を挿入接着することとなるが、この挿入時に接着
剤がこすり取られてしまい、挿入筒を取付管の内面に充
分に接着することができないといった不都合を生じる。
また、挿入筒をあらかじめ取付管よりも小径に形成して
おき、挿入筒を取付管に挿入した後、エアパッカーなど
を膨張させて挿入筒を取付管の内面に圧接した状態で接
着することも考えられるが、この場合、確実に接着硬化
するまで挿入筒を取付管の内面に圧接しておかなけれ
ば、挿入筒に拡径力が働いて接着面が剥離してしまうと
いった不都合を生じることとなる。In the case of bonding, the insertion tube is inserted and bonded from the buried main pipe in a state in which an adhesive is previously applied to the outer peripheral surface of the insertion tube. However, the adhesive is scraped off at the time of insertion. As a result, there arises a disadvantage that the insertion tube cannot be sufficiently bonded to the inner surface of the mounting tube.
Alternatively, the insertion tube may be formed in advance with a smaller diameter than the mounting tube, and after inserting the insertion tube into the mounting tube, the air packer or the like may be expanded to adhere the insertion tube to the inner surface of the mounting tube while being pressed against the inner surface of the mounting tube. However, in this case, unless the insertion tube is pressed against the inner surface of the mounting tube until the adhesion and curing are surely performed, there arises a problem that the expanding surface acts on the insertion tube and the bonding surface is peeled off. Become.
【０００７】本発明は、係る実情に鑑みてなされたもの
であって、簡単に施工でき、優れた止水性を得ることが
できる補修材を提供することを目的としている。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a repair material that can be easily constructed and that can obtain excellent water stopping properties.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
の本発明の補修材は、埋設本管と、この埋設本管の外周
面に取り付けられた取付管との接合部の止水を行う補修
材であって、埋設本管の内周面に沿うサドル部と、この
サドル部の外面に突設された筒部と、サドル部に対して
筒部を自在な方向に向けることを可能とする首部とが弾
性材料によって一体成形されたサドル本体と、このサド
ル本体の筒部の内周面に内蔵され、この筒部を拡径可能
となされた拡径リングとサドル部の外面に塗布された接
合剤とを具備したものである。A repair material according to the present invention for solving the above-mentioned problems is to stop water at a joint portion between a buried main pipe and a mounting pipe attached to an outer peripheral surface of the buried main pipe. It is a repair material, and a saddle part along the inner peripheral surface of the buried main pipe, a tubular part protruding from the outer surface of this saddle part, and the tubular part can be oriented in any direction with respect to the saddle part A saddle body integrally formed of an elastic material with a neck portion to be formed, and a large diameter ring that is built into the inner peripheral surface of a cylindrical portion of the saddle body and is capable of expanding the cylindrical portion, and is applied to an outer surface of the saddle portion. And a bonding agent.
【０００９】また、拡径リングが、サドル本体の筒部か
らはみ出す高さの筒状に形成されるとともに、このはみ
出した部分に拡径部が形成されたものである。さらに、
サドル本体が、筒部の先端部からサドル部の外周縁部に
かけて剪断されたものである。Further, the diameter-expanding ring is formed in a cylindrical shape having a height protruding from the cylindrical portion of the saddle main body, and the diameter-expanding portion is formed in the protruding portion. further,
The saddle body is sheared from the distal end of the cylindrical portion to the outer peripheral edge of the saddle portion.
【００１０】さらに、筒部の外周面に、この筒部が拡径
された状態で、取付管の内周面に密着する止水部が周設
されたものである。また、止水部内が中空となされたも
のである。さらに、拡径リングが、止水部からずれた位
置に内蔵され、筒部のみの部分を拡径するようになされ
たものである。[0010] Further, a water-stop portion is provided on the outer peripheral surface of the cylindrical portion so as to be in close contact with the inner peripheral surface of the mounting pipe with the diameter of the cylindrical portion expanded. Further, the inside of the water stop portion is made hollow. Further, an expanding ring is provided at a position deviated from the water stopping portion, so as to expand the diameter of only the cylindrical portion.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。図１および図２は補修材１の全体
構成の概略を示し、図３ないし図６は同補修材１の施工
状態を示し、図７は同補修材１による施工完了状態を示
している。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 schematically show the overall structure of the repair material 1. FIGS. 3 to 6 show the state of construction of the repair material 1, and FIG.
【００１２】すなわち、この補修材１は、サドル本体２
と拡径リング３と、接合剤２０とを具備し、埋設本管４
と、この埋設本管４の外周面に取り付けられた取付管５
との接合部の止水を行うことができるようになされてい
る。That is, the repair material 1 is a saddle body 2
And an expanding ring 3 and a bonding agent 20.
And an attachment pipe 5 attached to the outer peripheral surface of the buried main pipe 4.
And water can be stopped at the joint.
【００１３】サドル本体２は、埋設本管４の内周面に沿
うサドル部２１と、このサドル部２１の外面に突設され
た筒部２２とからなり、合成樹脂やゴムなどの弾性材料
によって一体に形成されている。このサドル本体２は、
筒部２２の基端部に蛇腹状となされた首部２３が形成さ
れており、この首部２３によって筒部２２が、サドル部
２１に対して自在な方向に向くことができるようになさ
れている。また、筒部２２は、取付管５の直径よりも約
１割程度、直径が小さく形成されるとともに、この筒部
２２の外周面には、リップ部（図示省略）を有する水膨
張性ゴム２４が融着一体化されている。また、サドル部
２１は、外面に湿気硬化型の接着剤２０が塗布されてお
り、この接着剤２０を介して埋設本管４の内周面に接着
するようになされている。この接着剤２０としては、例
えば、ＭＤＩプレポリマーからなるウレタン系やエポキ
シ系の接着剤２０を使用することができる。この接着剤
２０の塗布面は、使用前まで、離型紙を貼って塗布面が
汚れないように防止しておくことが好ましい。The saddle body 2 is composed of a saddle portion 21 extending along the inner peripheral surface of the buried main pipe 4 and a cylindrical portion 22 protruding from the outer surface of the saddle portion 21, and is made of an elastic material such as synthetic resin or rubber. It is formed integrally. This saddle body 2
A bellows-shaped neck portion 23 is formed at the base end of the tube portion 22, and the neck portion 23 allows the tube portion 22 to face any direction with respect to the saddle portion 21. The cylindrical portion 22 is formed to be about 10% smaller in diameter than the diameter of the mounting tube 5, and a water-swellable rubber 24 having a lip (not shown) is formed on the outer peripheral surface of the cylindrical portion 22. Are fused and integrated. The saddle portion 21 has a moisture-curable adhesive 20 applied to the outer surface thereof, and adheres to the inner peripheral surface of the buried main pipe 4 via the adhesive 20. As the adhesive 20, for example, a urethane-based or epoxy-based adhesive 20 made of an MDI prepolymer can be used. It is preferable that the application surface of the adhesive 20 is applied with a release paper to prevent the application surface from being stained before use.
【００１４】この接着剤２０は、あらかじめ工場で塗布
しても良いし、現場で使用直前に塗布しても良い。ただ
し、工場で塗布した場合には、塗布面が湿気で硬化しな
いように、サドル本体２を密閉した袋や窒素置換した袋
の中に入れて保管した状態で現場に搬入しなければなら
ない。The adhesive 20 may be applied in advance at a factory or may be applied on site immediately before use. However, when applied at a factory, the saddle body 2 must be transported to the site with the saddle body 2 stored in a sealed bag or a nitrogen-purged bag so that the applied surface does not harden due to moisture.
【００１５】拡径リング３は、ステンレス製の長尺板を
円筒状に捲回して構成されている。この拡径リング３の
一端には長尺板の長手方向に沿って多段に係合孔３１が
設けられ、他端には係合爪３２が設けられている。この
係合爪３２は、拡径すると係合孔３１から離脱するが、
縮径方向には戻り止めが効くようになされている。した
がって、この拡径リング３は、拡径方向には自由に拡径
することができるが、拡径を停止すると、係合爪３２が
係合孔３１に係合して拡径状態が維持される。The expanding ring 3 is formed by winding a long plate made of stainless steel into a cylindrical shape. An engaging hole 31 is provided at one end of the diameter-enlarged ring 3 in multiple stages along the longitudinal direction of the long plate, and an engaging claw 32 is provided at the other end. The engaging claw 32 is detached from the engaging hole 31 when the diameter is increased.
The detent is made effective in the diameter reducing direction. Accordingly, the diameter-expanding ring 3 can be freely expanded in the diameter-expanding direction. However, when the diameter-expansion is stopped, the engaging claw 32 is engaged with the engaging hole 31 and the expanded state is maintained. You.
【００１６】この拡径リング３は、サドル本体２の筒部
２２の内周面を若干拡径方向に付勢する程度の円筒状に
捲回した状態で、この筒部２２の内周面に装着され、こ
れによって補修材１が構成される。The expanded ring 3 is wound around the inner peripheral surface of the cylindrical portion 22 of the saddle body 2 in a state where the inner peripheral surface of the cylindrical portion 22 of the saddle main body 2 is wound in a cylindrical shape enough to urge the inner peripheral surface slightly in the radially expanding direction. The repair material 1 is configured by this.
【００１７】次に、この補修材１による補修方法につい
て説明する。まず、図３に示すように、補修材１は、サ
ドル部２１を筒部２２の周囲に折り畳んだ状態とする。
そして、筒部２２の内周面に内蔵した拡径リング３内に
エアパッカー６を挿入し、その周囲を結束テープ７で結
束してエアパッカー６の周囲に補修材１を巻き付け固定
する。これを、取付管５の側から埋設本管４の方に挿入
する。この際、サドル部２１は、筒部２２の周囲に折り
畳み易いように、切り込み（図示省略）が設けられて花
びら状となされていても良い。Next, a repair method using the repair material 1 will be described. First, as shown in FIG. 3, the repair material 1 is in a state where the saddle portion 21 is folded around the cylindrical portion 22.
Then, the air packer 6 is inserted into the diameter-enlarged ring 3 built in the inner peripheral surface of the cylindrical portion 22, and the periphery thereof is bound with a binding tape 7, and the repair material 1 is wound around the air packer 6 and fixed. This is inserted into the buried main pipe 4 from the mounting pipe 5 side. At this time, the saddle portion 21 may be provided with cuts (not shown) so as to be easily folded around the cylindrical portion 22 and have a petal shape.
【００１８】つぎに、図４に示すように、エアパッカー
６が埋設本管４内に少し入り込んだ所で、エアパッカー
６を少し膨張させ、拡径リング３を少し拡径させる。す
ると、この拡径によって結束テープ７が切断され、筒部
２２の周囲に折り畳んだ状態としていたサドル部２１が
元の鞍状に戻る。ついで、エアパッカー６を引上げ、筒
部２２を取付管５内に挿入する。Next, as shown in FIG. 4, when the air packer 6 slightly enters the buried main pipe 4, the air packer 6 is slightly expanded, and the diameter-expanding ring 3 is slightly expanded. Then, the binding tape 7 is cut by the diameter expansion, and the saddle portion 21 that has been folded around the cylindrical portion 22 returns to the original saddle shape. Next, the air packer 6 is pulled up, and the tubular portion 22 is inserted into the mounting pipe 5.
【００１９】そして、このように筒部２２を取付管５内
に挿入させた状態で、図５に示すように、再度エアパッ
カー６を膨張させる。すると、まず、エアパッカー６を
引き上げることによって、サドル部２１が埋設本管４の
内周面に当接される。また、エアパッカー６を膨張させ
ることによって、拡径リング３が拡径して筒部２２が取
付管５の内周面に圧着される。Then, with the tubular portion 22 inserted into the mounting pipe 5, the air packer 6 is inflated again as shown in FIG. Then, first, by pulling up the air packer 6, the saddle portion 21 is brought into contact with the inner peripheral surface of the buried main pipe 4. In addition, by expanding the air packer 6, the diameter-expanding ring 3 expands, and the cylindrical portion 22 is pressed against the inner peripheral surface of the mounting pipe 5.
【００２０】その後、図６に示すように、エアパッカー
６を除去し、埋設本管４側から、別のエアパッカー６０
を膨張させ、サドル部２１を埋設本管４の内周面に圧着
した状態で保持する。そして、このサドル部２１の外表
面に塗布した接着剤２０によって埋設本管４の内周面に
サドル部２１が接着された後、エアパッカー６０を除去
して作業を終了する。Thereafter, as shown in FIG. 6, the air packer 6 is removed, and another air packer 60 is placed from the buried main pipe 4 side.
Is expanded, and the saddle portion 21 is held in a state of being pressed against the inner peripheral surface of the buried main pipe 4. Then, after the saddle portion 21 is adhered to the inner peripheral surface of the buried main pipe 4 by the adhesive 20 applied to the outer surface of the saddle portion 21, the air packer 60 is removed and the operation is completed.
【００２１】この補修材１によると、図７に示すよう
に、拡径リング３が拡径することによって、サドル本体
２の筒部２２が拡径されて取付管５の内周面に圧着され
るので、取付管５の材質に関係なく、充分な止水性を確
保することができる。また、この筒部２２の外周面に融
着一体化した水膨張性ゴム２４が、取付管５内の湿気で
膨張して密着力が高まり、さらに優れた止水性が得られ
ることとなる。さらに、拡径リング３によって、筒部２
２の圧着状態が維持されるとともに、筒部２２全体を補
強できることとなり、信頼性の高い止水性を確保でき
る。According to the repair material 1, as shown in FIG. 7, as the diameter-expanding ring 3 expands, the cylindrical portion 22 of the saddle body 2 expands and is pressed against the inner peripheral surface of the mounting pipe 5. Therefore, a sufficient waterproof property can be ensured regardless of the material of the mounting pipe 5. In addition, the water-swellable rubber 24 fused and integrated to the outer peripheral surface of the cylindrical portion 22 expands due to the moisture in the mounting tube 5 to increase the adhesion, and further excellent water-stopping properties can be obtained. Further, the cylindrical portion 2 is expanded by the expanding ring 3.
2 is maintained, and the entire cylindrical portion 22 can be reinforced. As a result, highly reliable waterproofness can be secured.
【００２２】また、サドル本体２は、全体を弾性材料に
よって一体成形し、かつ、筒部２２の基端部に形成した
首部２３によって、筒部２２が、サドル部２１に対して
自在な方向に向くことができるようにしているので、筒
部２２の取付方向に関係無く、サドル部２１を埋設本管
４の内周面に追従した形で、この埋設本管４の内周面に
接着でき、充分な止水性を得ることができる。したがっ
て、例えば、図８に示すように、埋設本管４に対して取
付管５が斜め方向に取り付けられており、筒部２２が斜
め方向に向いているような場合であっても、充分に止水
性を確保した状態で容易に施工することができる。The saddle main body 2 is integrally formed entirely of an elastic material, and the cylindrical portion 22 is formed in the base end of the cylindrical portion 22 so that the cylindrical portion 22 can freely move with respect to the saddle portion 21. The saddle portion 21 can be adhered to the inner peripheral surface of the buried main pipe 4 so that the saddle portion 21 follows the inner peripheral surface of the buried main pipe 4 irrespective of the mounting direction of the cylindrical portion 22. , Sufficient water stoppage can be obtained. Therefore, for example, as shown in FIG. 8, even when the attachment pipe 5 is attached to the buried main pipe 4 in an oblique direction and the cylindrical portion 22 is oriented in an oblique direction, it is sufficient. It can be easily installed with the waterproofness secured.
【００２３】さらに、取付管５側からの施工により、取
付管５の内周面にサドル本体２の筒部２２を圧着した状
態としてから、サドル部２１を埋設本管４の内周面に接
着するため、位置ずれの心配もなく、簡単かつ確実にサ
ドル部２１を埋設本管４の内周面に接着することができ
る。さらに、サドル部２１の外面に湿気硬化型の接着剤
２０を塗布しているので、埋設本管４が下水で濡れてい
るような場合であっても接着できる。Further, the tubular portion 22 of the saddle body 2 is crimped to the inner peripheral surface of the mounting tube 5 by application from the mounting tube 5 side, and then the saddle portion 21 is bonded to the inner peripheral surface of the buried main pipe 4. Therefore, the saddle portion 21 can be easily and securely bonded to the inner peripheral surface of the buried main pipe 4 without a fear of displacement. Furthermore, since the moisture-curable adhesive 20 is applied to the outer surface of the saddle portion 21, even if the buried main pipe 4 is wet with sewage, it can be bonded.
【００２４】なお、この接着剤２０は、湿気硬化型に限
定されるものではなく、埋設本管４が配電管のように湿
気ないような場合には、通常の接着剤２０を使用するこ
とができる。ただし、通常の接着剤２０を使用した場
合、筒部２２の周囲に折り畳んだ状態としたサドル部２
１が、そのまま接着されて元の鞍状に戻らないこととな
るので、接着剤２０の表面に離型紙（図示省略）を設け
た状態で折り畳み、埋設本管４内で補修材１の離型紙を
剥離する工程を別途設けなければならない。また、接着
剤２０の表面にガラス繊維クロス（図示省略）を設けた
状態で折り畳んでもよい。この場合、ガラス繊維クロス
によって折り畳み状態のままサドル部２１が接着される
のを防止することができる。また、サドル部２１が埋設
本管４の内周面に圧着されると、このサドル部２１の表
面の接着剤２０がガラス繊維クロスに浸透してガラス繊
維クロスの表面に染み出すこととなるので、埋設本管４
の内周面にサドル部２１を接着することができる。The adhesive 20 is not limited to a moisture-curing type. When the buried main pipe 4 is not damp like a distribution pipe, a normal adhesive 20 may be used. it can. However, when the normal adhesive 20 is used, the saddle portion 2 is folded around the cylindrical portion 22.
Since the adhesive 1 does not return to its original saddle shape, it is folded with a release paper (not shown) provided on the surface of the adhesive 20, and the release paper of the repair material 1 is buried in the embedded main pipe 4. Must be separately provided. Alternatively, the adhesive 20 may be folded with a glass fiber cloth (not shown) provided on the surface thereof. In this case, it is possible to prevent the saddle portion 21 from being adhered while being folded by the glass fiber cloth. Also, when the saddle portion 21 is pressed against the inner peripheral surface of the buried main pipe 4, the adhesive 20 on the surface of the saddle portion 21 penetrates the glass fiber cloth and seeps onto the surface of the glass fiber cloth. , Buried main 4
The saddle portion 21 can be bonded to the inner peripheral surface of the.
【００２５】また、水膨張性ゴム２４としては、図９に
示すように、戻り２４ａの付いた状態で周設された鋸刃
状の断面形状のものや（図９（ａ）参照）、連続する円
弧状の断面形状のもの（図９（ｂ）参照）などのよう
に、取付管５の内周面に圧着した状態で、この内周面の
複数箇所に圧着して抵抗を増すことができように形成さ
れたものを使用することができる。また、同図に示すよ
うに、内部に中空部２４ｂが形成されていても良いし、
この中空部２４ｂが無く中実となされていても良い。た
だし、この中空部２４ｂがある方が、拡径リング３によ
る拡径が容易になるので、拡径作業を確実に行うことが
できる点で好ましい。As shown in FIG. 9, the water-swellable rubber 24 has a saw-toothed cross-sectional shape provided with a return 24a (see FIG. 9 (a)). In a state of being crimped on the inner peripheral surface of the mounting pipe 5, such as an arc-shaped cross-sectional shape (see FIG. 9B), it is possible to increase the resistance by crimping the inner peripheral surface at a plurality of locations. Whatever is formed can be used. Further, as shown in the figure, a hollow portion 24b may be formed inside,
This hollow portion 24b may be omitted and solid. However, the presence of the hollow portion 24b is preferable in that the diameter expansion by the diameter expansion ring 3 is facilitated, so that the diameter expansion operation can be reliably performed.
【００２６】また、この水膨張性ゴム２４は、筒部２２
の外周面全体に設けられていても良いし、図１０に示す
ように、筒部２２の外周面に数カ所（本実施の形態では
２か所）に分けて設けられていても良い。このように、
水膨張性ゴム２４を数カ所に分けて設けた場合、水膨張
性ゴム２４からずれた位置に拡径リング３を設けて筒部
２２のみの部分を拡径リング３で拡径することができる
ので、拡径時に水膨張性ゴム２４の部分の弾性力に抗し
て拡径する必要が無くなり、拡径作業を容易に行うこと
ができることとなる。Further, the water-swellable rubber 24 is
May be provided on the entire outer peripheral surface, or as shown in FIG. 10, may be provided on the outer peripheral surface of the cylindrical portion 22 at several places (two places in the present embodiment). in this way,
When the water-swellable rubber 24 is provided in several places, the diameter-expanding ring 3 is provided at a position shifted from the water-swellable rubber 24, and the diameter of only the cylindrical portion 22 can be expanded by the diameter-expanding ring 3. In addition, when expanding the diameter, it is not necessary to expand the diameter against the elastic force of the portion of the water-expandable rubber 24, and the diameter expanding operation can be easily performed.
【００２７】また、拡径リング３としては、図１１に示
すようなものであっても良い。すなわち、この拡径リン
グ３は、筒部２２からはみ出す程の高さの円筒状に形成
されている。また、この筒部２２からはみ出した部分が
拡径され、漏斗状となった流水案内部３３を形成するよ
うになされている。この拡径リング３の場合、充分な高
さがあり、かつ、流水案内部３３が拡径時のガイド的な
役割を果たすこととなるので、拡径時に拡径リング３が
筒部２２からずれて埋設本管４に落下してしまうといっ
たことを防止することができる。また、流水案内部３３
が、上流からの流水の抵抗となっていた筒部２２の先端
部２２ａを被覆することとなるので、流水の妨げが減少
し、補修材１の筒部２２と取付管５との間隙に流下水が
浸入するのを防止して止水性の向上を図ることができ
る。The diameter-expanding ring 3 may be as shown in FIG. That is, the diameter-enlarged ring 3 is formed in a cylindrical shape having a height that protrudes from the cylindrical portion 22. The portion protruding from the cylindrical portion 22 is enlarged in diameter to form a funnel-shaped running water guide portion 33. In the case of the diameter-expanding ring 3, the diameter of the diameter-expanding ring 3 is deviated from the cylindrical portion 22 at the time of diameter expansion because the flowing water guide portion 33 has a role of guiding when expanding the diameter. Therefore, it is possible to prevent the falling into the buried main pipe 4. In addition, running water guide 33
However, since it covers the distal end portion 22a of the cylindrical portion 22 which has become the resistance of the flowing water from the upstream, the obstruction of the flowing water is reduced, and the water flows down into the gap between the cylindrical portion 22 of the repair material 1 and the mounting pipe 5. It is possible to prevent water from entering and improve the water stoppage.
【００２８】なお、この拡径リング３の場合、流水案内
部３３の拡径度合が大きすぎると、筒部２２を取付管５
の内周面に圧着することができなくなるので、この拡径
リング３の外周半径と内周半径との差Ｄは、筒部２２と
水膨張性ゴム２４との合計の厚みｄと同じになるように
設計する必要がある。また、流水案内部３３は、滑らか
な連続面でテーパ状に拡径されたものであれば、その形
状としては特に限定されるものではない。In the case of the diameter-expanding ring 3, if the degree of diameter expansion of the flowing water guide portion 33 is too large, the cylindrical portion 22 is attached to the mounting pipe 5.
Can no longer be pressed against the inner peripheral surface, so that the difference D between the outer peripheral radius and the inner peripheral radius of the enlarged diameter ring 3 becomes the same as the total thickness d of the cylindrical portion 22 and the water-expandable rubber 24. It is necessary to design. The shape of the flowing water guide portion 33 is not particularly limited as long as the flowing water guiding portion 33 is tapered with a smooth continuous surface.
【００２９】さらに、サドル本体２としては、図１２に
示すように、筒部２２の先端部２２ａからサドル部２１
の外周縁部２１ａにかけて剪断されたものであっても良
い。この場合、剪断辺２ａ同士を重ね合わせた状態から
拡径することで、重ね代が適宜に調節されて取付管５の
内周面全体にサドル本体２の筒部２２を圧着させること
ができる。したがって、サドル本体２としては、あらか
じめ二割程度直径を大きく設定し、充分な重ね代を取れ
るように形成したものを使用する。ただし、埋設本管４
と取付管５との接続角度によっては、この重ね代が多す
ぎる場合もあるので、このような場合には、図１３に示
すように、剪断辺２ａの部分から余剰部分を切断して使
用する。また、止水性を向上させるために、図１４に示
すように、筒部２２の外周面に水膨張性ゴム２４を設け
ても良い。Further, as shown in FIG. 12, the saddle main body 2 is connected to the saddle portion 21 from the distal end portion 22a of the cylindrical portion 22.
May be sheared over the outer peripheral edge 21a of the first member. In this case, by expanding the diameter from the state where the shear sides 2a are overlapped with each other, the overlap allowance is appropriately adjusted, and the cylindrical portion 22 of the saddle body 2 can be crimped to the entire inner peripheral surface of the mounting pipe 5. Therefore, as the saddle body 2, one having a diameter set to about 20% large in advance and formed so as to allow a sufficient overlap margin is used. However, buried main 4
Depending on the connection angle between the cable and the mounting pipe 5, the overlapping margin may be too large, and in such a case, as shown in FIG. . In addition, as shown in FIG. 14, a water-swellable rubber 24 may be provided on the outer peripheral surface of the cylindrical portion 22 in order to improve the water stoppage.
【００３０】[0030]
【発明の効果】以上述べたように、本発明によると、拡
径リングを拡径することで、取付管の内周面に筒部を圧
接することができるので、充分な止水性を確保すること
ができる。また、拡径リングによってこの筒部の圧接状
態を維持するとともに、この筒部を拡径リングによって
補強して、信頼性の高い止水性を確保することができ
る。As described above, according to the present invention, by expanding the diameter of the diameter-expanding ring, the cylindrical portion can be pressed against the inner peripheral surface of the mounting pipe, so that sufficient water stoppage is ensured. be able to. In addition, while maintaining the press-contact state of the cylindrical portion by the expanding ring, the cylindrical portion is reinforced by the expanding ring, so that highly reliable water stopping property can be secured.
【００３１】また、この筒部の基端部には、サドル部に
対して自在な方向に向けることができる首部を形成して
いるので、埋設本管に対して直角に取り付けられた取付
管のみならず、斜めに取り付けられた取付管の場合であ
っても容易に施工することができる。Further, since a neck portion which can be oriented in a free direction with respect to the saddle portion is formed at the base end portion of the cylindrical portion, only the mounting pipe mounted at right angles to the buried main pipe is provided. However, even in the case of a mounting pipe which is mounted diagonally, it can be easily constructed.
【００３２】さらに、筒部を取付管の内周面にしっかり
と圧着させた後、サドル部を埋設本管の内周面に接着す
ることが可能となるため、位置ずれの心配も無く、簡単
かつ確実にサドル部を埋設本管の内周面に接着すること
ができる。Furthermore, since the saddle portion can be adhered to the inner peripheral surface of the buried main tube after the cylindrical portion is firmly pressed against the inner peripheral surface of the mounting tube, there is no need to worry about displacement, and it is easy. Further, the saddle portion can be securely bonded to the inner peripheral surface of the buried main pipe.
【００３３】また、請求項２記載の本発明によると、拡
径リングの拡径時に拡径部がガイド的な役割を果たすこ
ととなるので、この拡径リングが筒部からずれて埋設本
管内に落下してしまうといったことを防止して確実な取
り付け作業を行うことができる。また、施工完了状態
で、拡径部が、上流からの流水の抵抗となっていた筒部
の先端部分を被覆することとなるので、流水の妨げが減
少し、補修材の筒部と取付管との間隙に流下水が浸入す
るのを防止して止水性の向上を図ることができる。According to the second aspect of the present invention, the enlarged diameter portion plays a role of a guide when the enlarged diameter ring is enlarged. It is possible to perform a reliable mounting operation by preventing the device from dropping on the surface. In addition, in the completed state, the enlarged diameter portion covers the distal end portion of the cylindrical portion, which has been a resistance to flowing water from the upstream, so that obstruction of flowing water is reduced, and the cylindrical portion of the repair material and the mounting pipe It is possible to prevent the flowing water from entering into the gap with the gap, and to improve the water stopping performance.
【００３４】さらに、請求項３記載の本発明によると、
サドル本体の筒部の先端部からサドル部の外周縁部にか
けて剪断しているので、剪断辺同士を重ね合わせた状態
から拡径することで、重ね代が適宜に調節されて取付管
の内周面全体にサドル本体の筒部を圧着させることがで
き、優れた止水性を得ることができる。Further, according to the third aspect of the present invention,
Since the shearing is performed from the distal end of the tubular portion of the saddle body to the outer peripheral edge of the saddle portion, the diameter of the sheared side is increased from the overlapped state, so that the overlap margin is appropriately adjusted and the inner circumference of the mounting pipe is adjusted. The tubular portion of the saddle main body can be crimped over the entire surface, and excellent water stopping properties can be obtained.
【００３５】さらに、請求項４記載の本発明によると、
筒部の外周面に周設した止水部によって、取付管の内周
面への密着性を高めてより高い止水性を確保することが
できる。また、この場合、拡径リングによる拡径時に筒
部と止水部との双方を拡径しなければならないので、充
分な拡径力が必要となるが、請求項５記載の本発明によ
ると、この止水部を中空としているので、必要とされる
拡径力の低下を図ることができ、止水部による高い止水
性を確保しつつ、作業性の向上をも図ることができる。
同様に、請求項６記載の本発明の場合も、拡径リング
を、止水部からずれた位置に内蔵し、筒部のみの部分を
拡径するようにしているので、止水部による高い止水性
を確保しつつ、拡径力を緩和して作業性の向上を図るこ
とができる。Further, according to the present invention described in claim 4,
By the water stop portion provided on the outer peripheral surface of the cylindrical portion, the adhesiveness to the inner peripheral surface of the mounting pipe can be enhanced, and higher water stop performance can be secured. Further, in this case, when expanding the diameter by the expanding ring, both the cylindrical portion and the water stopping portion must be expanded, so that a sufficient expanding force is required. Since the water stop portion is hollow, the required diameter expansion force can be reduced, and workability can be improved while ensuring high water stop performance by the water stop portion.
Similarly, in the case of the present invention described in claim 6, since the diameter-expanding ring is incorporated at a position shifted from the water-stopping portion and the diameter of only the cylindrical portion is increased, the height of the water-stopping portion increases The workability can be improved by alleviating the diameter expanding force while ensuring the water stoppage.
【図１】補修材の全体構成の概略を示す斜視図である。FIG. 1 is a perspective view schematically showing an overall configuration of a repair material.
【図２】補修材の断面図である。FIG. 2 is a sectional view of a repair material.
【図３】補修材の施工工程であって、補修材を取付管に
挿入する状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state in which the repair material is inserted into a mounting pipe in a process of applying the repair material.
【図４】補修材の施工工程であって、補修材のサドル本
体のフランジ部を埋設本管内で拡げた状態を示す断面図
である。FIG. 4 is a cross-sectional view showing a state in which a flange portion of a saddle body of the repair material is expanded in a buried main pipe in a repair material application process.
【図５】補修材の施工工程であって、補修材のサドル本
体の筒部を取付管に圧着した状態を示す断面図である。FIG. 5 is a cross-sectional view showing a state in which a tubular portion of a saddle body of the repair material is crimped to a mounting tube in a repair material application process.
【図６】補修材の施工工程であって、補修材のサドル本
体のフランジ部を埋設本管に接着した状態を示す断面図
である。FIG. 6 is a cross-sectional view showing a state in which a flange portion of a saddle body of the repair material is adhered to a buried main pipe in a repair material application process.
【図７】補修材による施工完了状態を示す断面図であ
る。FIG. 7 is a cross-sectional view showing a completed state of the repair material.
【図８】補修材による施工完了状態の他の実施の形態を
示す断面図である。FIG. 8 is a cross-sectional view showing another embodiment of the state in which the construction is completed with the repair material.
【図９】（ａ）および（ｂ）は、それぞれ止水部の実施
の形態を示す部分断面図である。FIGS. 9A and 9B are partial cross-sectional views each showing an embodiment of a water stop portion.
【図１０】止水部の他の実施の形態を示す部分断面図で
ある。FIG. 10 is a partial cross-sectional view showing another embodiment of the water stop section.
【図１１】拡径リングの他の実施の形態を示す部分断面
図である。FIG. 11 is a partial cross-sectional view showing another embodiment of the diameter expansion ring.
【図１２】サドル本体の他の実施の形態を示す側面図で
ある。FIG. 12 is a side view showing another embodiment of the saddle body.
【図１３】サドル本体のさらに他の実施の形態を示す側
面図である。FIG. 13 is a side view showing still another embodiment of the saddle body.
【図１４】（ａ）および（ｂ）は、図１２および図１３
のサドル本体のさらに他の実施の形態を示す側面図であ
る。14 (a) and (b) are FIGS. 12 and 13
It is a side view which shows further another embodiment of the saddle main body of FIG.
１ 補修材 ２ サドル本体 ２０ 接着剤 ２１ サドル部 ２１ａ 外周縁部 ２２ 筒部 ２２ａ 先端部 ２３ 首部 ２４ 水膨張性ゴム（止水部） ２４ｂ 中空部 ３ 拡径リング ３３ 流水案内部（拡径部） ４ 埋設本管 ５ 取付管 DESCRIPTION OF SYMBOLS 1 Repair material 2 Saddle main body 20 Adhesive 21 Saddle part 21a Outer peripheral edge part 22 Cylindrical part 22a Tip part 23 Neck part 24 Water-expandable rubber (water stop part) 24b Hollow part 3 Expanding ring 33 Flowing water guide part (Expanding part) 4 Buried main pipe 5 Mounting pipe
Claims (6)
り付けられた取付管との接合部の止水を行う補修材であ
って、 埋設本管の内周面に沿うサドル部と、このサドル部の外
面に突設された筒部と、サドル部に対して筒部を自在な
方向に向けることを可能とする首部とが弾性材料によっ
て一体成形されたサドル本体と、 このサドル本体の筒部の内周面に内蔵され、この筒部を
拡径可能となされた拡径リングと、 サドル部の外面に塗布された接合剤とを具備したことを
特徴とする補修材。1. A repair material for stopping water at a joint between a buried main pipe and a mounting pipe attached to an outer peripheral surface of the buried main pipe, the saddle part being provided along an inner peripheral surface of the buried main pipe. A saddle body in which a tubular portion protruding from the outer surface of the saddle portion and a neck portion enabling the tubular portion to be freely oriented with respect to the saddle portion are integrally formed of an elastic material; A repair material, which is provided on the inner peripheral surface of the cylindrical portion and has an expanding ring capable of expanding the diameter of the cylindrical portion, and a bonding agent applied to an outer surface of the saddle portion.
み出す高さの筒状に形成されるとともに、このはみ出し
た部分に拡径部が形成された請求項１記載の補修材。2. The repair material according to claim 1, wherein the enlarged diameter ring is formed in a cylindrical shape having a height protruding from the cylindrical portion of the saddle body, and the enlarged diameter portion is formed in the protruding portion.
部の外周縁部にかけて剪断された請求項１記載の補修
材。3. The repair material according to claim 1, wherein the saddle body is sheared from the tip of the cylindrical portion to the outer peripheral edge of the saddle portion.
状態で、取付管の内周面に密着する止水部が周設された
請求項１ないし３の何れかに記載の補修材。4. A water-stopping portion is provided on the outer peripheral surface of the cylindrical portion so as to closely contact the inner peripheral surface of the mounting pipe in a state where the diameter of the cylindrical portion is expanded. Repair materials.
の補修材。5. The repair material according to claim 4, wherein the inside of the water stop portion is hollow.
内蔵され、筒部のみの部分を拡径するようになされた請
求項４または５記載の補修材。6. The repair material according to claim 4, wherein the expanding ring is incorporated at a position shifted from the water stopping portion, and expands a diameter of only the cylindrical portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9043982A JPH10267182A (en) | 1997-01-23 | 1997-02-27 | Repairing member |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9-10293 | 1997-01-23 | ||
| JP1029397 | 1997-01-23 | ||
| JP9043982A JPH10267182A (en) | 1997-01-23 | 1997-02-27 | Repairing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10267182A true JPH10267182A (en) | 1998-10-09 |
Family
ID=26345549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9043982A Withdrawn JPH10267182A (en) | 1997-01-23 | 1997-02-27 | Repairing member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10267182A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020083085A (en) * | 2001-04-26 | 2002-11-01 | 동도기공 주식회사 | Branch pipe revival method of revival pipe and revival pipe for branch pipe |
| JP2007113752A (en) * | 2005-10-24 | 2007-05-10 | Kajima Corp | Pipeline connecting structure and connecting method |
| JP2008274982A (en) * | 2007-04-25 | 2008-11-13 | Tokyo Gas Co Ltd | Hole portion sealing treatment technique for lined existing pipe, and hole portion sealing treatment structure |
| JP2011174605A (en) * | 2010-02-01 | 2011-09-08 | Sekisui Chem Co Ltd | Branch joint for repair pipe and construction method thereof |
| CN107155321A (en) * | 2014-08-13 | 2017-09-12 | 株式会社黛怡茜 | Facial mask sheet package |
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| JPH05501752A (en) * | 1989-11-21 | 1993-04-02 | ヴアヴイン・ベスローテム・ヴエンノツトシヤツプ | Two-piece thermoplastic saddle for repairing or restoring pipelines with branch pipes and repaired or repaired pipes with saddles |
| JPH07331684A (en) * | 1994-06-14 | 1995-12-19 | Keiji Otsuka | Piping fitting and piping method |
| JPH0886002A (en) * | 1994-09-19 | 1996-04-02 | Toa Gurauto Kogyo Kk | Regenerating method for pipe joint and regenerated body for joint |
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1997
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|---|---|---|---|---|
| JPS63167193A (en) * | 1986-12-26 | 1988-07-11 | 日本鋼管工事株式会社 | Method of repairing branch section of pipe |
| JPH05501752A (en) * | 1989-11-21 | 1993-04-02 | ヴアヴイン・ベスローテム・ヴエンノツトシヤツプ | Two-piece thermoplastic saddle for repairing or restoring pipelines with branch pipes and repaired or repaired pipes with saddles |
| JPH0492024A (en) * | 1990-08-06 | 1992-03-25 | C I Kasei Co Ltd | Water cut-off structure of manhole |
| JPH07331684A (en) * | 1994-06-14 | 1995-12-19 | Keiji Otsuka | Piping fitting and piping method |
| JPH0886002A (en) * | 1994-09-19 | 1996-04-02 | Toa Gurauto Kogyo Kk | Regenerating method for pipe joint and regenerated body for joint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20020083085A (en) * | 2001-04-26 | 2002-11-01 | 동도기공 주식회사 | Branch pipe revival method of revival pipe and revival pipe for branch pipe |
| JP2007113752A (en) * | 2005-10-24 | 2007-05-10 | Kajima Corp | Pipeline connecting structure and connecting method |
| JP2008274982A (en) * | 2007-04-25 | 2008-11-13 | Tokyo Gas Co Ltd | Hole portion sealing treatment technique for lined existing pipe, and hole portion sealing treatment structure |
| JP2011174605A (en) * | 2010-02-01 | 2011-09-08 | Sekisui Chem Co Ltd | Branch joint for repair pipe and construction method thereof |
| CN107155321A (en) * | 2014-08-13 | 2017-09-12 | 株式会社黛怡茜 | Facial mask sheet package |
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