JP5090296B2 - Grout cap - Google Patents

Grout cap

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JP5090296B2
JP5090296B2 JP2008229271A JP2008229271A JP5090296B2 JP 5090296 B2 JP5090296 B2 JP 5090296B2 JP 2008229271 A JP2008229271 A JP 2008229271A JP 2008229271 A JP2008229271 A JP 2008229271A JP 5090296 B2 JP5090296 B2 JP 5090296B2
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cap
sheath
chamber
axis
grout
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JP2010059747A (en
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千尋 石井
宏巳 細野
淳 黒澤
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Sumitomo Mitsui Construction Co Ltd
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Sumitomo Mitsui Construction Co Ltd
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Description

本発明は、土木や建築等において、既設コンクリート体の縁端拡張や橋梁の外ケーブル締着ブロックの横締め等で採用される緊張材の一端部を、既設コンクリート体に穿った挿通孔に嵌合したシースに挿入して埋設する際、シースと緊張材の関に充填されるグラウトが外部に漏れないようにシースの開口に嵌めて使用される、グラウト注入用キャップに関する。   In civil engineering and construction, etc., one end of a tension material used for edge extension of an existing concrete body or lateral fastening of an outer cable fastening block of a bridge is fitted into an insertion hole drilled in the existing concrete body. The present invention relates to a grout injection cap that is used by being fitted to an opening of a sheath so that the grout filled between the sheath and the tendon does not leak to the outside when inserted into the combined sheath and embedded.

柔軟性のある樹脂材料とした大小2つの円筒を断面凸字状に組み合わせ、接合部にリング状の蓋及び小円筒に円形の蓋でそれぞれ閉じたかたちで一体に形成した液漏れ防止キャップが示されている(実公平5−2643号公報)。
また、PCケーブル2の端部2aと固定金具5とを覆って圧入されるグラウトが外部に漏れるのを防止する液漏れ防止キャップ40を、一端に開口11を備えPCケーブル2の端部2aと固定金具5を覆う有底筒形状のキャップ部材10と、このキャップ部材10の開口11側端部の外側に嵌装され、該キャップ部材10の開口11側に移動させられることによりキャップ部材10を縮徑方向に押圧し、固定金具5に固定する固定リング部材30とを備えるようにした液漏れ防止キャップも知られている(特開平11−209922号公報)。
実公平5−2643号公報 特開平11−209922号公報
A liquid leakage prevention cap formed by combining two large and small cylinders made of a flexible resin material in a convex shape in cross section and integrally formed with a ring-shaped lid at the joint and a circular lid on the small cylinder. (Japanese Utility Model Publication No. 5-2643).
Further, a liquid leakage prevention cap 40 that covers the end 2a of the PC cable 2 and the fixing metal 5 and prevents the grout that is press-fitted from leaking to the outside is provided with an opening 11 at one end, and the end 2a of the PC cable 2 A cap member 10 having a bottomed cylindrical shape covering the fixing bracket 5 and the outer end of the end portion on the opening 11 side of the cap member 10 are moved to the opening 11 side of the cap member 10 to move the cap member 10. There is also known a liquid leakage prevention cap that includes a fixing ring member 30 that is pressed in the crimping direction and fixed to the fixing bracket 5 (Japanese Patent Laid-Open No. 11-209922).
Japanese Utility Model Publication No. 5-2643 JP-A-11-209922

実公平5−2643号公報に開示されたキャップの場合、一体成形なので、緊張材であるケーブルの固定端部に被せるのには問題ないが、ケーブル端部が定着部分から外方へ長く延びているものには採用できない。   In the case of the cap disclosed in Japanese Utility Model Publication No. 5-2643, since it is integrally formed, there is no problem in covering the fixed end of the cable, which is a tension material, but the cable end extends long outward from the fixing portion. It cannot be adopted for those that are present.

また、特開平11−209922号公報に示されたキャップは、PCケーブル2の端部2aと固定金具5を覆う形式のため、実公平5−2643号公報に開示されたキャップと同様に、PCケーブル2の端部2aが固定金具5から外方へ長く伸び出ているものの場合には、適用できない。   Further, since the cap disclosed in Japanese Patent Application Laid-Open No. 11-209922 covers the end 2a of the PC cable 2 and the fixing bracket 5, the PC disclosed in Japanese Utility Model Publication No. 5-2643 is similar to the cap disclosed in Japanese Utility Model Publication No. 5-2643. This is not applicable when the end 2a of the cable 2 extends long outward from the fixing bracket 5.

(請求項1)本発明に係るグラウト注入用キャップは、軸線上の一端部が緊張材の挿通部となり、他端部がシースに対する開口部となった室に、充填口と排気口も各別に連通している。そして、このキャップは、該軸線を含む平面で二分割されかつ相対する分割面に係合手段が形成された単位体の結合で構成されている。   (Claim 1) The grout injection cap according to the present invention has a filling port and an exhaust port separately in a chamber in which one end portion on the axis is an insertion portion for a tendon and the other end portion is an opening portion for the sheath. Communicate. And this cap is comprised by the coupling | bonding of the unit body by which the engagement means was formed in the division | segmentation surface which is divided into 2 by the plane containing this axis line, and opposes.

このキャップは二分割された単位体を使用している。分割面には係合手段が形成されているので、両単位体を合体するのが容易で、合体した時点で両単位体はずれたりしない。必要なら係合手段に接着剤を塗布することもできる。係合手段としては、分割面に沿って長く続く雄雌の印籠形式が好ましい。更なるずれ防止のために、ほぞ及びほぞ穴を形成してもよい。   This cap uses a unit body divided in two. Since the engaging means is formed on the dividing surface, it is easy to unite both unit bodies, and the unit units do not shift when they are united. If necessary, an adhesive can be applied to the engaging means. As the engaging means, a male and female stamping form that continues long along the dividing surface is preferable. A mortise and mortise may be formed to prevent further displacement.

二分割された単位体の合体によって、軸線上の一端部が緊張材の挿通部となり、他端部がシースに対する開口部となった室が現出する。充填口と排気口の配置は自由で、単位体の一方に併設し、各別の単位体に各別に設け、もしくは単位体の合体によって構成されるようにそれぞれを二分割して各単位体に設けてもよい。   By combining the unit bodies divided into two parts, a chamber appears in which one end portion on the axis is an insertion portion for the tension material and the other end portion is an opening portion for the sheath. The arrangement of the filling port and the exhaust port is free, and it is provided in one of the unit bodies, provided separately in each of the unit bodies, or divided into two so that each unit body is formed by combining the unit bodies. It may be provided.

新たなコンクリート製品を付設したい既設のコンクリート体にその面を通して挿入孔を穿つ。シースに接着剤を塗布してこの挿入孔に挿入し、孔壁に密着させる。緊張材の一部をこのシースに挿入する。NAPP工法における緊張材の場合は、エンドホルダーを先にしてシースに挿入する。   An insertion hole is made through the surface of an existing concrete body to which a new concrete product is to be attached. An adhesive is applied to the sheath, inserted into the insertion hole, and brought into close contact with the hole wall. A portion of the tendon is inserted into this sheath. In the case of a tendon material in the NAPP method, the end holder is inserted first into the sheath.

キャップの一対の単位体で緊張材を挟むと、現出する室を緊張材が貫通した状態となる。この状態で両単位体を一体化し、室をその開口部側でシースに嵌め込む。単位体は合わせ型なので、緊張材をその側面から抱着することになり、緊張材がシースから外部へ長く突き出ていても問題はない。両単位体は相対する分割面に係合手段が形成されているので、分割面が密接に係合して隙間が生じず、流体が外部へ漏れる恐れが少ない。   When the tendon is sandwiched between the pair of unit bodies of the cap, the tendon passes through the appearing chamber. In this state, both unit bodies are integrated, and the chamber is fitted into the sheath on the opening side. Since the unit body is a combined type, the tendon is embraced from the side surface, and there is no problem even if the tendon protrudes long from the sheath to the outside. Since both unit bodies are formed with engaging means on opposing dividing surfaces, the dividing surfaces are closely engaged with each other so that no gap is generated, and there is little risk of fluid leaking to the outside.

充填口を通して充填材をシースと緊張材間に充填して行くと、両者の間にあった空気が排出口を通って外気へ押し出され、充填材が万遍なく充填される。充填を終えたら、その固化を待つ。   When the filling material is filled between the sheath and the tension material through the filling port, the air between them is pushed out to the outside air through the discharge port, and the filling material is uniformly filled. After filling, wait for it to solidify.

固化したら、既設コンクリート体から突き出ている緊張材を内包するように、付設する新たなコンクリート製品用の型枠をこの既設コンクリート体にめぐらし、この型枠内にコンクリートを打設する。この際、緊張材のプレストレス導入部分を型枠の外側に臨出させておく。コンクリートが固化したら型枠を外し、緊張材に緊張力を導入する。NAPP工法における緊張材の場合は、アンカーナットが新設のコンクリート中に埋設されており、ストッパーを取り外すと反力PC鋼棒が圧縮力を解かれるので伸張し、反作用で中空PC鋼棒が圧縮されて、コンクリートに圧縮力が導入される。   When solidified, a new form for a concrete product to be attached is put around the existing concrete body so as to enclose a tension material protruding from the existing concrete body, and concrete is placed in the form. At this time, the prestressed portion of the tendon is exposed outside the formwork. Once the concrete has solidified, remove the formwork and introduce tension to the tendon. In the case of the tension material in the NAPP method, the anchor nut is embedded in the new concrete, and when the stopper is removed, the reaction force PC steel bar is released so that the compression force is released, and the hollow PC steel bar is compressed by the reaction. Thus, compressive force is introduced into the concrete.

(請求項2)該挿通部は開口端側に該緊張材の外径に適合する内径の直孔部を有し、該室側に末広がり部を有していてもよい。
こうすると、緊張材に対する挿通部での隙間を無くし、グラウトの漏れを防ぐことができる。
(Claim 2) The insertion portion may have a straight hole portion having an inner diameter matching the outer diameter of the tendon material on the opening end side, and may have a divergent portion on the chamber side.
If it carries out like this, the clearance gap in the insertion part with respect to a tendon will be eliminated, and the leakage of grout can be prevented.

(請求項3)該室の外径は該シースの内径より小さくなっていてもよい。
こうすると、挿通孔の軸線の傾きによるシースの傾きに室を適応させられるので、該室とシース間の隙間を無くし、グラウトの漏れを防げる。
(Claim 3) The outer diameter of the chamber may be smaller than the inner diameter of the sheath.
In this way, the chamber can be adapted to the inclination of the sheath due to the inclination of the axis of the insertion hole, so that a gap between the chamber and the sheath is eliminated, and leakage of grout can be prevented.

(請求項4)該室の外径は該挿通部側で該シースの外径とほぼ等しくなっていてもよい。
こうすると、キャップとシースのテーピングがし易く、漏れ止めが確実となる。
(Claim 4) The outer diameter of the chamber may be substantially equal to the outer diameter of the sheath on the insertion portion side.
This facilitates taping of the cap and the sheath and ensures leakage prevention.

(請求項5)該充填口と排気口の各軸線は該室の軸線と平行で、両者の開口端面は該挿通部の開口端面より該室側となっていてもよい。
こうすると、キャップの挿通部と緊張材間のテーピングがし易く、グラウトの漏れ止めが確実で、充填口や排気口に対するホースの結合も容易となる。
(Claim 5) The axes of the filling port and the exhaust port may be parallel to the axis of the chamber, and the opening end surfaces of both may be closer to the chamber than the opening end surface of the insertion portion.
If it carries out like this, it will be easy to tap between the insertion part of a cap, and a tension material, the leak prevention of a grout will be reliable, and the coupling | bonding of the hose with a filling port and an exhaust port will also become easy.

(請求項6)該係合手段は一方の単位体が突部で、他方の単位体が該突部を嵌入する凹部であってもよい。
こうすると、突部と凹部の嵌合により両単位体の分割面が密接して一体化し、隙間が生じないので、流体が外部へ漏れることがない。
(Claim 6) In the engaging means, one unit body may be a protrusion, and the other unit body may be a recess into which the protrusion is inserted.
If it carries out like this, since the division | segmentation surface of both unit bodies will closely_contact | adhere and integrate by fitting of a protrusion and a recessed part, a fluid will not leak outside.

(請求項1)本発明に係るグラウト注入用キャップによれば、軸線上の一端部が緊張材の挿通部となり他端部がシースに対する開口部となった室に充填口と排気口も各別に連通し、該軸線を含む平面で二分割されかつ相対する分割面に係合手段が形成された単位体の結合で構成されているので、緊張材をその側面から抱着することができ、緊張材がシースから外部へ長く突き出ていても問題はなく、両単位体は相対する分割面に係合手段が形成されているので、合体した時点で両単位体はずれたり隙間を生じたりせず、グラウトが外部へ漏れる恐れが少ない。   (Claim 1) According to the grout injection cap according to the present invention, the filling port and the exhaust port are separately provided in the chamber in which one end portion on the axis is an insertion portion for the tension material and the other end portion is an opening portion for the sheath. Since it is composed of a unitary body that is divided into two planes including the axis line and that has engaging means formed on the opposing divided surfaces, the tension material can be attached from the side surface, There is no problem even if the material protrudes long from the sheath to the outside, since both unit bodies are formed with engaging means on the opposing split surfaces, both unit bodies do not shift or create gaps when they are joined, There is little risk of grout leaking outside.

請求項2によれば、該挿通部は開口端側に該緊張材の外径に適合する内径の直孔部を有し、該室側に末広がり部を有しているので、緊張材に対する挿通部での隙間を無くし、グラウトの漏れを防ぐことができる。   According to claim 2, since the insertion portion has a straight hole portion having an inner diameter matching the outer diameter of the tension material on the opening end side and a divergent portion on the chamber side, The gap in the part can be eliminated and the grout can be prevented from leaking.

請求項3によれば、該室の外径は該シースの内径より小さくなっているので、挿通孔の軸線の傾きによるシースの傾きに室を適応させられ、該室とシース間の隙間を無くしてグラウトの漏れを防げる。   According to claim 3, since the outer diameter of the chamber is smaller than the inner diameter of the sheath, the chamber can be adapted to the inclination of the sheath due to the inclination of the axis of the insertion hole, and the gap between the chamber and the sheath is eliminated. To prevent leakage of grout.

請求項4によれば、該室の外径は該挿通部側で該シースの外径とほぼ等しくなっているので、キャップとシースのテーピングがし易く、漏れ止めが確実となる。   According to the fourth aspect, since the outer diameter of the chamber is substantially equal to the outer diameter of the sheath on the insertion portion side, it is easy to tap the cap and the sheath, and the leakage prevention is ensured.

請求項5によれば、該充填口と排気口の各軸線は該室の軸線と平行で、両者の開口端面は該挿通部の開口端面より該室側となっているので、キャップの挿通部と緊張材間のテーピングがし易く、グラウトの漏れ止めが確実で、充填口や排気口に対するホースの結合も容易となる。   According to claim 5, each axis of the filling port and the exhaust port is parallel to the axis of the chamber, and the opening end surface of both is closer to the chamber than the opening end surface of the insertion portion. It is easy to tap between the tension material, and the grout is surely prevented from leaking, and the hose can be easily connected to the filling port and the exhaust port.

請求項6によれば、該係合手段は一方の単位体が突部で、他方の単位体が該突部を嵌入する凹部なので、突部と凹部の嵌合により両単位体の分割面が密接して一体化し、隙間が生じないので、流体が外部へ漏れることがない。   According to claim 6, since the one unit body is a protrusion and the other unit body is a recess into which the protrusion is inserted, the dividing surface of both unit bodies is formed by fitting the protrusion and the recess. Close integration and no gaps occur, so fluid does not leak to the outside.

図面は本発明にかかるグラウト注入用キャップの具体例を示すもので、図1は斜面図、図2は単位体の正面図、図3は平面図、図4は背面図、図5は図2の5−5線断面図、図6は使用状態の側面図、図7は同じく変化した使用状態の側面図である。   FIG. 1 is a perspective view, FIG. 2 is a front view of a unit body, FIG. 3 is a plan view, FIG. 4 is a rear view, and FIG. FIG. 6 is a side view of the usage state, and FIG. 7 is a side view of the changed usage state.

本発明にかかるグラウト注入用キャップは、軸線X1上の一端部が緊張材51の挿通部1となり、他端部がシース52に対する開口部2となった室3に、充填口4と排気口5も各別に連通している。そして、このキャップは、軸線X1を含む平面で二分割されかつ相対する分割面6に係合手段7が形成された単位体8の結合で構成されている。   The grout injection cap according to the present invention has a filling port 4 and an exhaust port 5 in a chamber 3 in which one end portion on the axis X1 is an insertion portion 1 for the tendon material 51 and the other end portion is an opening portion 2 for the sheath 52. Also communicate with each other. And this cap is comprised by the coupling | bonding of the unit body 8 by which the engaging means 7 was formed in the division | segmentation surface 6 divided into two by the plane containing the axis line X1.

分割面6には係合手段7が形成されているので、両単位体8を合体するのが容易で、合体した時点で両単位体8はずれたり、隙間が出来たりしない。必要なら係合手段7の少なくとも一方に接着剤を塗布することもできる。   Since the engagement means 7 is formed on the dividing surface 6, it is easy to unite both unit bodies 8, and when united, both unit bodies 8 are not displaced and no gap is formed. If necessary, an adhesive can be applied to at least one of the engaging means 7.

充填口4と排気口5の配置は自由で、単位体8の一方に併設し、各別の単位体8に各別に設け、もしくは単位体8の合体によって構成されるようにそれぞれを二分割して各単位体8に設けてもよい。   Arrangement of the filling port 4 and the exhaust port 5 is free, and it is provided in one side of the unit body 8 and provided separately in each of the different unit bodies 8 or divided into two so as to be constituted by uniting of the unit bodies 8. The unit bodies 8 may be provided.

図6は使用状態の側面図、図7は同じく変化した使用状態の側面図である。先ず図1に示されているように、一対の単位体8で緊張材51を挟むと、現出する室3を緊張材51が貫通した状態となる。この状態で両単位体8を一体化するとキャップが構成される。両単位体8は相対する分割面6に係合手段7が形成されているので、分割面6同士が密接に係合して隙間が生じず、グラウト53が外部へ漏れる恐れが少ない。また、キャップは一対の単位体8で緊張材51をその側面から抱着することになるので、緊張材51の長さに関係がない。   FIG. 6 is a side view of the usage state, and FIG. 7 is a side view of the changed usage state. First, as shown in FIG. 1, when the tension material 51 is sandwiched between the pair of unit bodies 8, the tension material 51 penetrates the chamber 3 that appears. When both unit bodies 8 are integrated in this state, a cap is formed. Since both the unit bodies 8 are formed with the engaging means 7 on the opposed dividing surfaces 6, the dividing surfaces 6 are closely engaged with each other so that no gap is generated, and there is little possibility that the grout 53 leaks to the outside. In addition, the cap has a pair of unit bodies 8 to hold the tendon material 51 from its side surface, and therefore the length of the tendon material 51 is not related.

新たなコンクリート製品54を付設する既設のコンクリート体55にその付設面56を通して挿入孔57を穿つ。シース52に接着剤58を塗布してこの挿入孔57に挿入する。このシース52の開口端部をコンクリート体55から外部へ臨出させ、残部を孔壁面に接着させる。緊張材51の一端部をこのシース52に挿入する。NAPP工法における緊張材の場合は、エンドホルダー59を先にしてシース52に挿入する。   An insertion hole 57 is drilled through an attached surface 56 of an existing concrete body 55 to which a new concrete product 54 is attached. An adhesive 58 is applied to the sheath 52 and inserted into the insertion hole 57. The open end portion of the sheath 52 is exposed to the outside from the concrete body 55, and the remaining portion is bonded to the hole wall surface. One end of the tendon material 51 is inserted into the sheath 52. In the case of a tendon material in the NAPP method, the end holder 59 is inserted into the sheath 52 first.

次いで、図6に示すように、このキャップの室3の周壁を、その開口部2側で、コンクリート体55から外部へ臨出させたシース52に嵌め込む。   Next, as shown in FIG. 6, the peripheral wall of the chamber 3 of the cap is fitted into a sheath 52 that protrudes to the outside from the concrete body 55 on the opening 2 side.

充填口4を通してグラウト53をシース52と緊張材51間に充填して行くと、両者の間にあった空気が排気口5を通って大気中へ押し出され、グラウト53が万遍なく充填される。充填を終えたら、その固化を待つ。   When the grout 53 is filled between the sheath 52 and the tendon 51 through the filling port 4, the air between the two is pushed out into the atmosphere through the exhaust port 5, and the grout 53 is uniformly filled. After filling, wait for it to solidify.

固化したら、既設のコンクリート体55から突き出ている緊張材51を内包するように、新たなコンクリート製品54用の型枠(図示省略)をこのコンクリート体55の付設面56に付設し、この型枠内にコンクリートを打設する。この際、緊張材51のプレストレス導入部分を型枠の外側に臨出させておく。コンクリートが固化したら型枠を外し、緊張材51に緊張力を導入する。NAPP工法における緊張材の場合は、アンカーナットが新設のコンクリート中に埋設されているので、通常のように、ストッパーを取り外して反力PC鋼棒の圧縮力を解くとその反作用で中空PC鋼棒が圧縮され、圧縮力が導入されたコンクリート製品54が得られる。   When solidified, a new formwork (not shown) for the concrete product 54 is attached to the attachment surface 56 of the concrete body 55 so as to contain the tension material 51 protruding from the existing concrete body 55. Put concrete inside. At this time, the prestressed portion of the tendon material 51 is exposed outside the formwork. When the concrete is solidified, the mold is removed, and tension is introduced into the tension member 51. In the case of the tension material in the NAPP method, the anchor nut is embedded in the new concrete, and as usual, when the stopper is removed and the compressive force of the reaction force PC steel rod is released, the reaction force causes the hollow PC steel rod. Is compressed, and the concrete product 54 into which the compressive force is introduced is obtained.

図7は挿入孔57が既設のコンクリート体55の新たなコンクリート製品54の付設面56と直角に穿たれていない場合である。緊張材51はその軸線をこの付設面56と直角に保つ必要があるので、キャップと緊張材51やシース52との接合部分に傾きが生じるが、その場合でもそれらの接合部分にグラウトが漏れ出る隙間を生じないようにしたものである。   FIG. 7 shows a case where the insertion hole 57 is not drilled perpendicularly to the attachment surface 56 of the new concrete product 54 of the existing concrete body 55. The tension material 51 needs to keep its axis at right angles to the attachment surface 56, so that the joint portion between the cap and the tension material 51 or the sheath 52 is inclined, but even in that case, the grout leaks to the joint portion. The gap is not generated.

(請求項2)挿通部1は開口端面9側に緊張材51の外径d1に適合する内径の直孔部10を有し、室3側に末広がり部11を有している。
この場合、緊張材51に対する挿通部1での隙間を無くし、グラウト53の漏れを防げる。
(Claim 2) The insertion portion 1 has a straight hole portion 10 having an inner diameter matching the outer diameter d1 of the tendon material 51 on the opening end face 9 side, and a divergent portion 11 on the chamber 3 side.
In this case, the gap in the insertion part 1 with respect to the tendon material 51 is eliminated, and leakage of the grout 53 can be prevented.

(請求項3)室3の外径d2はシース52の内径d3より小さくなっている。
この場合、挿入孔57の軸線X2の傾きによるシース52の傾きに室3を適応させ、室3とシース52間の隙間を無くしてグラウト53の漏れを防げる。
(Claim 3) The outer diameter d2 of the chamber 3 is smaller than the inner diameter d3 of the sheath 52.
In this case, the chamber 3 is adapted to the inclination of the sheath 52 due to the inclination of the axis X2 of the insertion hole 57, and the gap between the chamber 3 and the sheath 52 is eliminated, thereby preventing the grout 53 from leaking.

(請求項4)室3の挿通部1側の外径d4はシース52の外径とほぼ等しくなっている。
この場合、室3の周壁面とシース52の周壁面間に段差が生じないので、テーピング12がし易く、グラウト53の漏れ止めを確実に行える。
(Claim 4) The outer diameter d4 of the chamber 3 on the insertion portion 1 side is substantially equal to the outer diameter of the sheath 52.
In this case, since no step is generated between the peripheral wall surface of the chamber 3 and the peripheral wall surface of the sheath 52, the taping 12 can be easily performed, and the grout 53 can be reliably prevented from leaking.

(請求項5)充填口4の軸線X3と排気口5の軸線X4は室3の軸線X1と平行で、充填口4の開口端面13と排気口5の開口端面14は挿通部1の開口端面9より手前に位置している。
この場合、挿通部1と緊張材51間のテーピング15がし易く、グラウト53の漏れ止めが確実で、充填口4や排気口5に対するホースの結合も容易となる。
(Claim 5) The axis X3 of the filling port 4 and the axis X4 of the exhaust port 5 are parallel to the axis X1 of the chamber 3, and the opening end surface 13 of the filling port 4 and the opening end surface 14 of the exhaust port 5 are the opening end surface of the insertion portion 1. It is located in front of 9.
In this case, the taping 15 between the insertion portion 1 and the tendon material 51 is easy, the grout 53 is surely prevented from leaking, and the hose can be easily connected to the filling port 4 and the exhaust port 5.

(請求項6)単位体8の係合手段7は、分割面6に沿って軸線X1を中心に線対称的に設けられた印籠形式の雄部7aと雌部7bとなっている。
この場合、雄部7aと雌部7bの嵌合により両単位体8の分割面6が密接して一体化し、隙間が生じないので、グラウト53が外部へ漏れることがない。なお、更なるずれ防止のために、ほぞ7cとほぞ穴7dを形成してもよい。
なお、60はホースの抜け止めである。
(Claim 6) The engaging means 7 of the unit body 8 is a male part 7a and a female part 7b in the form of a seal stamp provided along the dividing surface 6 with the axis X1 as a center of symmetry.
In this case, the split surfaces 6 of both unit bodies 8 are closely integrated with each other by fitting the male portion 7a and the female portion 7b, and no gap is generated, so that the grout 53 does not leak to the outside. In order to prevent further displacement, a tenon 7c and a tenon 7d may be formed.
Reference numeral 60 denotes a hose retainer.

本発明にかかるキャップの具体例を示す一部切欠斜面図である。It is a partially cutaway slope view showing a specific example of a cap according to the present invention. 単位体の正面図である。It is a front view of a unit body. 平面図である。It is a top view. 背面図である。It is a rear view. 図2の5−5線断面図である。FIG. 5 is a sectional view taken along line 5-5 of FIG. 本発明にかかるキャップの使用状態の側面図である。It is a side view of the use condition of the cap concerning the present invention. 同じく変化した使用状態の側面図である。It is the side view of the use condition similarly changed.

符号の説明Explanation of symbols

1 挿通部
X1、X2、X3 軸線
2 開口部
3 室
4 充填口
5 排気口
6 分割面
7 係合手段
7a 雄部
7b 雌部
7c ほぞ
7d ほぞ穴
8 単位体
9 開口端面
10 直孔部
11 末広がり部
12 テーピング
13 開口端面
14 開口端面
15 テーピング
51 緊張材
52 シース
53 グラウト
54 コンクリート製品
55 コンクリート体
56 付設面
57 挿入孔
58 接着剤
59 エンドホルダー
60 抜け止め
DESCRIPTION OF SYMBOLS 1 Insertion part X1, X2, X3 Axis 2 Opening part 3 Chamber 4 Filling port
DESCRIPTION OF SYMBOLS 5 Exhaust port 6 Dividing surface 7 Engagement means 7a Male part 7b Female part 7c Tenon 7d Mortise 8 Unit body 9 Open end face 10 Straight hole part 11 End opening part 12 Taping 13 Open end face 14 Open end face 15 Taping 51 Tension material 52 Sheath 53 Grout 54 Concrete product 55 Concrete body 56 Additional surface 57 Insertion hole 58 Adhesive 59 End holder 60 Retaining

Claims (6)

軸線(X1)上の一端部が緊張材(51)の挿通部(1)となり、他端部がシース(52)に対する開口部(2)となった室(3)に、充填口(4)と排気口(5)も各別に連通しており、
該軸線(X1)を含む平面で二分割されかつ相対する分割面(6)に係合手段(7)が形成された単位体(8)の結合で構成されていることを特徴とするグラウト注入用キャップ。
One end on the axis (X1) becomes the insertion part (1) for the tension material (51), and the other end becomes the opening (2) with respect to the sheath (52), and the filling port (4) And the exhaust port (5) communicate with each other,
Grout injection characterized in that it is composed of a unit body (8) that is divided into two planes including the axis (X1) and in which engaging means (7) are formed on the opposing divided surface (6). Cap.
該挿通部(1)は開口端面(9)側に該緊張材(51)の外径(d1)に適合する内径の直孔部(10)を有し、該室(3)側に末広がり部(11)を有している請求項1に記載のグラウト注入用キャップ。 The insertion portion (1) has a straight hole portion (10) having an inner diameter matching the outer diameter (d1) of the tendon material (51) on the opening end surface (9) side, and a diverging portion on the chamber (3) side. The cap for grout injection according to claim 1, comprising (11). 該室(3)の外径(d2)は該シース(52)の内径(d3)より小さくなっている請求項1又は2に記載のグラウト注入用キャップ。 The cap for grout injection according to claim 1 or 2, wherein the outer diameter (d2) of the chamber (3) is smaller than the inner diameter (d3) of the sheath (52). 該室(3)の挿通部1側の外径(d4)は該シース(52)の外径とほぼ等しくなっている請求項1又は2に記載のグラウト注入用キャップ。 The grout injection cap according to claim 1 or 2, wherein an outer diameter (d4) of the chamber (3) on the insertion portion 1 side is substantially equal to an outer diameter of the sheath (52). 該充填口(4)の軸線(X2)と排気口(5)の軸線(X3)は該室(3)の軸線(X1)と平行で、該充填口(4)の開口端面(13)と該排気口(5)の開口端面(14)は該挿通部(1)の該開口端面(9)より手前に位置している請求項1に記載のグラウト注入用キャップ。 The axis (X2) of the filling port (4) and the axis (X3) of the exhaust port (5) are parallel to the axis (X1) of the chamber (3), and the opening end face (13) of the filling port (4) The cap for grout injection according to claim 1, wherein the opening end face (14) of the exhaust port (5) is positioned in front of the opening end face (9) of the insertion portion (1). 該単位体(8)の係合手段(7)は、分割面(6)に沿って該軸線(X1)を中心に線対称的に設けられた印籠形式の雄部(7a)と雌部(7b)となっている請求項1に記載のグラウト注入用キャップ。 The engagement means (7) of the unit body (8) includes a male part (7a) and a female part (indicator type) provided symmetrically about the axis (X1) along the dividing surface (6). The cap for grout injection according to claim 1, which is 7b).
JP2008229271A 2008-09-08 2008-09-08 Grout cap Active JP5090296B2 (en)

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