JP4976314B2 - Adhesive injection tool for cracks - Google Patents

Adhesive injection tool for cracks Download PDF

Info

Publication number
JP4976314B2
JP4976314B2 JP2008006413A JP2008006413A JP4976314B2 JP 4976314 B2 JP4976314 B2 JP 4976314B2 JP 2008006413 A JP2008006413 A JP 2008006413A JP 2008006413 A JP2008006413 A JP 2008006413A JP 4976314 B2 JP4976314 B2 JP 4976314B2
Authority
JP
Japan
Prior art keywords
cylinder
adhesive
piston
injection
spring
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.)
Active
Application number
JP2008006413A
Other languages
Japanese (ja)
Other versions
JP2009167679A (en
Inventor
勇 溝淵
Original Assignee
勇 溝淵
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 勇 溝淵 filed Critical 勇 溝淵
Priority to JP2008006413A priority Critical patent/JP4976314B2/en
Publication of JP2009167679A publication Critical patent/JP2009167679A/en
Application granted granted Critical
Publication of JP4976314B2 publication Critical patent/JP4976314B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Working Measures On Existing Buildindgs (AREA)

Description

この発明は、コンクリート構造物の内部に発生したクラック等の空隙に接着剤（グラウト剤）を注入し、ひび割れ等の空隙を補修するために用いるクラックへの接着剤の注入具に関する。   The present invention relates to a tool for injecting an adhesive into a crack used for injecting an adhesive (grouting agent) into a gap such as a crack generated inside a concrete structure and repairing a gap such as a crack.

コンクリート構造物の内部に発生したクラック等の空隙を放置すると、漏水やコンクリートの割れ、外装材として貼り付けたタイルの剥離等が発生するため、クラック等の空隙を接着剤の注入によって埋める必要がある。   Leaving voids such as cracks generated inside a concrete structure may cause water leakage, cracking of concrete, peeling of tiles attached as exterior materials, etc., so it is necessary to fill the gaps such as cracks by injecting adhesive. is there.

上記のようなクラック等の空隙に接着剤を注入するための従来の注入方法としては、大別すると、先ず、貫通孔を有する円板状の座金を接着剤の被注入体に、その貫通孔がクラックと連通するよう取付け、接着剤を内部に吸入した注入具を前記座金の貫通孔に取り付け、その後注入具内の接着剤に圧力を加え、接着剤をクラックへ経時的に押出して注入する吸引後付け方式と、円板状の座金を備えた注入具を接着剤の被注入体に、座金に設けた貫通孔がクラックと連通するよう取付け、その後、注入具に接続したポンプでこの注入具を介してクラックに接着剤を注入し、注入具に設けた蓄圧機能で接着剤をクラックへ経時的に押出す先付け注入方式とがある。   As a conventional injection method for injecting an adhesive into a gap such as a crack as described above, roughly, first, a disk-shaped washer having a through-hole is used as an adhesive injection target, and the through-hole Attach the injection tool that sucks the adhesive into the through hole of the washer, apply pressure to the adhesive in the injection tool, and push the adhesive into the crack over time to inject it. A suction post-installation method and an injection device equipped with a disk-shaped washer are attached to the adhesive injection target so that the through-hole provided in the washer communicates with the crack, and then this injection device is connected to the injection device with a pump. There is a tip-injection method in which an adhesive is injected into a crack through a pressure and the adhesive is extruded into the crack over time by a pressure accumulation function provided in the injection tool.

従来、上述した前者の吸引後付け方式を実施する注入具には、幾つかの異なった構造のものが提案されているが、例えば、図５（ａ）に示すように、注入具１は、中央に貫通状の螺筒２を有する円板状の座金３と、注入具本体４の組み合わせからなり、注入具本体４は、シリンダ５の先端に前記螺筒２にねじ込む小径の螺筒６を設け、前記シリンダ５の内部に移動可能となるように挿入したピストン７に、シリンダ５の後端から後方に突出するピストン軸８を設け、前記シリンダ５の先端部とピストン軸８の後端の間に加圧ゴム９を掛けることにより、ピストン７に常時前方への移動弾性を付勢し、シリンダ５内に吸引した接着剤ａを加圧するようにした構造になっている。   Conventionally, there have been proposed several different structures for the injection device that implements the former suction retrofit system described above. For example, as shown in FIG. The injection tool main body 4 is provided with a small-diameter screw cylinder 6 to be screwed into the screw cylinder 2 at the tip of the cylinder 5. The piston 7 inserted so as to be movable inside the cylinder 5 is provided with a piston shaft 8 that protrudes rearward from the rear end of the cylinder 5, and between the front end of the cylinder 5 and the rear end of the piston shaft 8. The pressure rubber 9 is applied to the piston 7 so as to constantly urge the piston 7 to move forward and pressurize the adhesive a sucked into the cylinder 5.

上記のような注入具１で被注入体ｂのクラックｃに接着剤ａを注入するには、予め座金３を被注入体ｂに取付け用接着剤で固定しておくと共に、注入具本体４を保持してピストン軸８でピストン７を後方に引くことで、注射器のように先端の螺筒２からシリンダ５内に接着剤ａを吸引し、この注入具本体４の螺筒６を座金３の螺筒２にねじ込んで取付け、この後、シリンダ５の先端部とピストン軸８の後端の間に加圧ゴム９を掛け、ピストン７で接着剤ａに圧力を加え、この接着剤ａをクラックｃへ経時的に押出して注入するものである（例えば特許文献１参照）。   In order to inject the adhesive a into the crack c of the injection target b with the injection tool 1 as described above, the washer 3 is previously fixed to the injection target b with an adhesive for attachment, and the injection tool main body 4 is fixed. By holding and pulling the piston 7 backward with the piston shaft 8, the adhesive a is sucked into the cylinder 5 from the screw tube 2 at the tip like a syringe, and the screw tube 6 of the injection tool body 4 is attached to the washer 3. The screw 2 is screwed into the cylinder 2 and then a pressure rubber 9 is applied between the front end of the cylinder 5 and the rear end of the piston shaft 8, and pressure is applied to the adhesive a by the piston 7 to crack the adhesive a. c is extruded and injected over time (for example, see Patent Document 1).

次に、上述した後者の先付け注入方式を実施する従来の注入具も、幾つかの異なった構造のものが提案されているが、例えば、図５（ｂ）に示すように、注入具１ａは、中央に螺筒２を有する円板状の座金３と、注入具本体４ａの組み合わせからなり、注入具本体４ａは、シリンダ５の先端に前記螺筒２にねじ込む小径の螺筒６を設け、前記シリンダ５の内部に移動可能となるように挿入したピストン７に、接着剤通路１０がピストン７と共に軸方向に貫通するピストン軸８を設け、前記シリンダ５の後端から外部に突出するピストン軸８の後端に開閉弁１１を設け、前記ピストン７にばね１２で常時前方への移動弾性を付勢した構造になっている。   Next, as for the conventional injection tool for implementing the latter prior injection method described above, there have been proposed several different structures. For example, as shown in FIG. , Comprising a combination of a disc-shaped washer 3 having a screw cylinder 2 in the center and an injection tool main body 4a. The injection tool main body 4a is provided with a small diameter screw cylinder 6 screwed into the screw cylinder 2 at the tip of the cylinder 5. The piston 7 inserted so as to be movable inside the cylinder 5 is provided with a piston shaft 8 in which the adhesive passage 10 penetrates in the axial direction together with the piston 7, and the piston shaft projects outward from the rear end of the cylinder 5. An opening / closing valve 11 is provided at the rear end of 8, and the piston 7 has a structure in which a spring 12 always urges forward movement elasticity.

このような注入具１ａでクラックｃに接着剤ａを注入するには、座金３を被注入体ｂに取付け用接着剤で固定すると共に、注入具本体４ａの螺筒６を座金３の螺筒２にねじ込んで取付け、この状態で、ピストン軸８の後端に接続したポンプでこの注入具本体４ａを介してクラックｃに接着剤ａを注入し、シリンダ５内に溜まった接着剤ａでピストン７が後端側に移動すると、ばね１２が収縮することでピストン７によって接着剤ａに圧力を加え、
注入具本体４ａへの接着剤ａの供給を止めて開閉弁１１を閉じ、シリンダ５内の接着剤ａをクラックｃへ経時的に押出すものである（例えば、特許文献２参照）。 In order to inject the adhesive a into the crack c with such an injection tool 1a, the washer 3 is fixed to the injection target b with an adhesive for attachment, and the screw cylinder 6 of the injection tool main body 4a is fixed to the screw cylinder of the washer 3. In this state, the adhesive a is injected into the crack c through the injection tool main body 4a with the pump connected to the rear end of the piston shaft 8, and the piston a with the adhesive a accumulated in the cylinder 5 When 7 moves to the rear end side, the spring 12 contracts to apply pressure to the adhesive a by the piston 7,
The supply of the adhesive a to the injection tool main body 4a is stopped, the on-off valve 11 is closed, and the adhesive a in the cylinder 5 is extruded over time into the crack c (for example, see Patent Document 2).

このような注入具１ａにおいては、シリンダ５内の接着剤ａが押出されて減少すると、ばね１２による接着剤の押出圧が減少するので、これを補正するため、シリンダの後端部にばね調圧機構を設けたものが提案されている。   In such an injection tool 1a, when the adhesive a in the cylinder 5 is pushed out and reduced, the extrusion pressure of the adhesive by the spring 12 decreases. To correct this, the spring adjustment is applied to the rear end of the cylinder. A device provided with a pressure mechanism has been proposed.

上記ばね調圧機構は、シリンダの後端側の位置に、両側がシリンダの周壁で軸線を挟む両側の位置に設けたばね圧調整溝に納まり、このばね圧調整溝に沿ってピストン軸の軸方向に移動可能となるばね押え部材を設け、このばね押え部材とピストンの間にピストンに常時前方への移動弾性を付勢するばねを縮設した構造を有し、前記ばね圧調整溝は、ばね押え部材を取付けるために、シリンダの後端で開放していると共に、ばね圧調整溝の複数箇所にばね押え部材を回動させることによって係止する切欠き部を設け、ばね押え部材を先端側の切欠き部に掛け変えることで、ばねの弾性を増加するようになっている（例えば、特許文献３参照）。
特願２００５−３１１１５３号公報 特願昭５８−２３７０９５号公報 特公昭６４−５４７号公報 The above-mentioned spring pressure adjusting mechanism is accommodated in a spring pressure adjusting groove provided on both sides of the cylinder at the position on the rear end side of the cylinder and on both sides of the axis line between the cylinder peripheral walls, and along the spring pressure adjusting groove, the axial direction of the piston shaft A spring holding member that can move to the piston, and between the spring holding member and the piston, there is a structure in which a spring that constantly urges the moving elasticity of the piston forward is contracted, and the spring pressure adjusting groove is a spring In order to attach the presser member, it is opened at the rear end of the cylinder, and is provided with notches that are locked by rotating the spring presser member at a plurality of locations in the spring pressure adjusting groove. The elasticity of the spring is increased by changing over the notch (see, for example, Patent Document 3).
Japanese Patent Application No. 2005-311153 Japanese Patent Application No. 58-237095 Japanese Patent Publication No. 64-547

ところで、上記した何れの方式の注入具においても、構成部材の一部であってもできるだけ繰り返し使用するのが資源の問題や経済性の面から好ましいが、上記した従来の各注入具は、シリンダの先端が絞られて小径の螺筒６になっているので、クラックｃへの接着剤ａの注入完了後に、シリンダ５内に残った接着剤ａが螺筒６内で固化していると、これをシリンダ５内から簡単に取出すことができず、このため、シリンダ５の再使用ができないのが現状である。   By the way, in any of the above-described injectors, it is preferable to use as many parts as possible even from a part of the components in view of resource problems and economy. However, each of the conventional injectors described above is a cylinder. When the adhesive a remaining in the cylinder 5 is solidified in the screw cylinder 6 after the injection of the adhesive a into the crack c is completed, This cannot be easily taken out from the cylinder 5, and therefore the cylinder 5 cannot be reused.

また、何れの方式の注入具においても、座金３は被注入体ｂの外面に取付け用接着剤を用いて貼り付け固定され、この固定力には、注入具１、１ａで接着剤ａをクラックｃに圧入するときの反力を支持する強度を要求されるが、前記座金３は単なる円板状の薄板に形成され、被注入体ｂへの取付け面が平滑面になっているので、取付け用接着剤との接着力が弱く、このため、被注入体ｂに対する注入具１、１ａの固着強度が弱いという問題があり、取付け用接着剤の接着面積を多くして固着強度を上げるために、座金３の被注入体ｂへの取付け面に環状溝を設けようとしても、座金３の板厚が薄いために浅い環状溝となり、その結局、被注入体ｂに対する固着強度の向上を図るのが困難である。   Also, in any type of injection tool, the washer 3 is fixed to the outer surface of the injection target b by using an adhesive for mounting, and the adhesive a is cracked by the injection tools 1 and 1a. The washer 3 is required to be strong enough to support the reaction force when it is press-fitted into c, but the washer 3 is formed in a simple disk-like thin plate, and the mounting surface to the injection target b is a smooth surface. In order to increase the fixing strength by increasing the bonding area of the mounting adhesive, there is a problem that the fixing strength of the injection device 1, 1 a to the body to be injected b is weak. Even if an annular groove is provided on the mounting surface of the washer 3 to the injection target b, the plate thickness of the washer 3 is thin, resulting in a shallow annular groove. As a result, the fixing strength to the injection target b is improved. Is difficult.

更に、吸引後付け方式の注入具１は、シリンダ５内に接着剤ａを予め吸引しておくため、重量的に重くなり、座金３を被注入体ｂの外面に固定する取付け用接着剤が完全に固化するまで、座金３に対して注入具本体４、４ａの取付けが行えず、その分作業サイクルがその分遅くなるという問題がある。   Further, since the suction post-installation type injection device 1 sucks the adhesive a in the cylinder 5 in advance, it becomes heavier in weight and the mounting adhesive for fixing the washer 3 to the outer surface of the injection target b is completely provided. Until it is solidified, the injection tool bodies 4 and 4a cannot be attached to the washer 3, and there is a problem that the work cycle is delayed accordingly.

また、上記先付け注入方式の注入具１ａにおいて、ばね１２の弾性を増加する手段としてシリンダの周壁に設けた両側のばね圧調整溝は、シリンダの後端で開放しているため、シリンダの後端側の強度が低下し、ばねの圧力を高めると変形が生じる場合があり、また、シリンダの周壁を厚肉にして強度を確保すると、材料コストが高く付くという問題がある。   Further, in the tip injection type injector 1a, since the spring pressure adjusting grooves on both sides provided on the peripheral wall of the cylinder as means for increasing the elasticity of the spring 12 are opened at the rear end of the cylinder, the rear end of the cylinder If the strength of the side is reduced and the pressure of the spring is increased, deformation may occur, and if the peripheral wall of the cylinder is made thick to ensure the strength, there is a problem that the material cost increases.

そこで、この発明の課題は、被注入体の外面に対する固着強度を向上させることができると共に、シリンダの繰り返し使用を可能にし、しかも、シリンダの強度低下の発生がないクラックへの接着剤の注入具を提供することにある。   Accordingly, an object of the present invention is to improve the adhesion strength to the outer surface of an injection target, to enable repeated use of a cylinder, and to inject an adhesive into a crack without causing a decrease in the strength of the cylinder Is to provide.

上記のような課題を解決するため、請求項１の発明は、接着剤の被注入体に取付ける台座にシリンダの先端を固定し、このシリンダ内に軸方向への移動が可能となるよう挿入されたピストンに、接着剤通路がピストンと共に軸方向に貫通するピストン軸を設け、前記シリンダの後端から外部に突出するピストン軸の後端に逆止弁を備えた注入プラグを設け、上記ピストンに弾性体で常時前方への移動弾性を付勢したクラックへの接着剤の注入具であって、前記台座は、座板の被注入体に取付ける面と反対側の面に、シリンダの先端を外嵌状に締結するため、シリンダの内径と同等かそれよりも大径の円形突部が設けられ、この円形突部の中心部に軸方向の貫通孔を設けて形成され、前記シリンダの先端部が円形突部に外嵌する内径で開口している構成を採用したものである。   In order to solve the above-described problems, the invention of claim 1 is such that the tip of the cylinder is fixed to a pedestal attached to the adhesive injection target body and inserted into the cylinder so as to be movable in the axial direction. A piston shaft through which the adhesive passage penetrates in the axial direction together with the piston is provided, and an injection plug having a check valve is provided at the rear end of the piston shaft protruding outward from the rear end of the cylinder. An adhesive injection tool for a crack that is always elastically biased to move forward by an elastic body, wherein the pedestal has a front end of a cylinder outside the surface of the seat plate opposite to the surface to be attached to the injection target. A circular protrusion having a diameter equal to or larger than the inner diameter of the cylinder is provided for fastening in a fitting shape, and an axial through hole is formed at the center of the circular protrusion, and the tip of the cylinder Open with an inner diameter that fits around the circular protrusion It is obtained by employing the configuration that.

請求項２の発明は、上記シリンダの後端側の位置に、このシリンダの周壁で軸線を挟む両側の位置にばね圧調整溝を設け、前記シリンダの後端側の位置に、ピストン軸に外嵌する状態で両側の細幅部が両側のばね圧調整溝に納まり、このばね圧調整溝に沿ってシリンダの軸方向に移動可能となるばね押え部材を取付け、このばね押え部材とピストンの間にピストンに常時前方への移動弾性を付勢するばねを縮設し、前記ばね圧調整溝は、シリンダの軸方向に位置する両端が閉鎖され、少なくとも先端側の端部にばね押え部材を回動させることによって細幅部を係止する切欠き部が設けられている構成を採用したものである。   According to a second aspect of the present invention, a spring pressure adjusting groove is provided at a position on the rear end side of the cylinder at positions on both sides sandwiching the axis line with the peripheral wall of the cylinder, and the piston shaft is provided at a position on the rear end side of the cylinder. The narrow part on both sides fits in the spring pressure adjustment groove on both sides in the fitted state, and a spring pressing member that can move in the axial direction of the cylinder along this spring pressure adjustment groove is attached, and between this spring pressing member and the piston A spring that constantly urges the piston to move forward is retracted, and the spring pressure adjusting groove is closed at both ends located in the axial direction of the cylinder, and the spring pressing member is rotated at least at the end on the tip side. A configuration is adopted in which a notch for locking the narrow portion by moving is provided.

請求項３の発明は、先端側がストレートな筒状で後端が開放されたシリンダの先端部に、接着剤の被注入体に取付ける台座を一体に設け、前記シリンダ内に軸方向への移動が可能となるよう挿入されたピストンに、接着剤通路がピストンと共に軸方向に貫通するピストン軸を設け、前記シリンダの後端から外部に突出するピストン軸の後端に逆止弁を備えた注入プラグを設け、上記ピストンに弾性体で常時前方への移動弾性を付勢したクラックへの接着剤の注入具であって、前記台座とシリンダの先端部が、座板の被注入体に取付ける面と反対側の面に位置し、外径がシリンダと等しい円形突部を介して一体成形され、この円形突部の中心部に軸方向の貫通孔が設けられている構成を採用したものである。   In the invention of claim 3, a pedestal to be attached to the adhesive injection target is integrally provided at the front end of the cylinder having a straight cylindrical shape at the front end and an open rear end, and movement in the axial direction is performed in the cylinder. An injection plug having a piston shaft in which an adhesive passage penetrates in the axial direction together with the piston is provided in the piston inserted so as to be possible, and a check valve is provided at the rear end of the piston shaft protruding outward from the rear end of the cylinder An adhesive injection tool for cracks in which the piston is always elastically biased to move forward with an elastic body, and the tip of the pedestal and the cylinder is attached to the injection target of the seat plate; A configuration is adopted in which it is integrally formed through a circular protrusion having an outer diameter equal to that of the cylinder, which is located on the opposite surface, and an axial through hole is provided at the center of this circular protrusion.

請求項４の発明は、上記台座の円形突部を設けた部分に、被注入体に取付ける面で開口する環状溝を貫通孔と同軸心状の配置で設けた構成を採用したものである。   The invention of claim 4 employs a configuration in which an annular groove opening on the surface to be attached to the injection target is provided in the portion provided with the circular protrusion of the pedestal so as to be coaxial with the through hole.

請求項５の発明は、上記台座の貫通孔に、弾性材料を用いて一端が端壁で閉鎖された筒状に形成され、この端壁に通過する接着剤で押し開かれるスリットを設けた可動パイプを軸方向に移動可能となるよう取付けた構成を採用したものである。   According to a fifth aspect of the present invention, there is provided a movable body in which a through hole of the pedestal is formed in a cylindrical shape whose one end is closed by an end wall using an elastic material and is pushed open by an adhesive passing through the end wall. The configuration is such that the pipe is attached so as to be movable in the axial direction.

ここで、上記台座とシリンダ、ピストン及びピストン軸は、合成樹脂を用いて形成され、請求項１の場合、台座へのシリンダの取付けは、円形突部の外周に設けた雄ねじに、シリンダの先端部内周に設けた雌ねじをねじ込むことによって着脱自在になっていると共に、螺合部分はパッキンで水密が保たれるようになっている。
また、上記ピストンに対して前進弾性を付与する弾性体は、コイルばねや輪ゴムを用いることができる。 Here, the pedestal, the cylinder, the piston, and the piston shaft are formed using a synthetic resin. In the case of claim 1, the cylinder is attached to the pedestal by a male screw provided on the outer periphery of the circular protrusion, and the tip of the cylinder. It is made detachable by screwing a female screw provided on the inner periphery of the part, and the screwed part is kept watertight by packing.
In addition, a coil spring or a rubber band can be used as the elastic body that imparts forward elasticity to the piston.

請求項１の発明によると、接着剤の被注入体に取付ける台座の一面側に、シリンダの先端を外嵌状に締結するため、シリンダの内径と同等かそれよりも大径の円形突部を設け、この円形突部の中心部に軸方向の貫通孔を設け、前記シリンダの先端部を円形突部に外嵌する内径の筒状にしたので、台座に対してシリンダが着脱自在となり、シリンダの先端部が大径で開口することで、クラックへの接着剤の注入完了後に、シリンダ内に残った接着剤が固化しても、これを先端部の開口から簡単に取出すことができ、このため、注入具において台座だけでなくシリンダの再使用が可能となり、材料資源や注入具購入経費の節約が可能になる。   According to the first aspect of the present invention, a circular protrusion having a diameter equal to or larger than the inner diameter of the cylinder is provided on the one surface side of the pedestal to be attached to the adhesive injection target. Since the axial through hole is provided at the center of the circular protrusion, and the tip of the cylinder is formed into a cylindrical shape with an inner diameter that fits around the circular protrusion, the cylinder can be freely attached to and detached from the pedestal. By opening the tip of the large diameter, even if the adhesive remaining in the cylinder is solidified after the injection of the adhesive into the crack, it can be easily removed from the opening of the tip. Therefore, it is possible to reuse not only the pedestal but also the cylinder in the injection tool, and it is possible to save material resources and the purchase cost of the injection tool.

請求項２の発明によると、シリンダの後端側の位置に設けたばね圧調整溝を、シリンダの軸方向に位置する両端が閉鎖されているようにしたので、シリンダ内の接着剤をピストンとばねで押出すために、ばね押え部材を取付けるばね圧調整溝を設けても、シリンダの強度を低下させることがなく、従って、シリンダの肉厚を厚くする必要がなくなり、シリンダのコスト低減を図ることができる。   According to the invention of claim 2, the spring pressure adjusting groove provided at the position on the rear end side of the cylinder is closed at both ends positioned in the axial direction of the cylinder. Therefore, even if a spring pressure adjusting groove for attaching the spring retainer is provided, the cylinder strength will not be reduced. Therefore, it is not necessary to increase the cylinder thickness, and the cost of the cylinder can be reduced. Can do.

請求項３の発明によると、台座の被注入体に取付ける面と反対側の一面側に、先端側がストレートな筒状で後端が開放されたシリンダを一体に設け、この円形突部の中心部に軸方向の貫通孔を設けたので、シリンダの後端が開口することで、クラックへの接着剤の注入完了後に、シリンダ内に残った接着剤が固化しても、これを後端の開口から簡単に取出すことができ、このため、注入具において台座とシリンダの再使用が可能となり、材料資源や注入具購入経費の節約が可能になる。   According to the invention of claim 3, on the one surface side opposite to the surface to be attached to the injection target of the pedestal, a cylinder having a straight cylindrical front end and an open rear end is integrally provided, and the central portion of the circular protrusion Since the through-hole in the axial direction is provided in the cylinder, the rear end of the cylinder opens, so that even if the adhesive remaining in the cylinder is solidified after the injection of the adhesive into the crack is completed, this is opened at the rear end. The pedestal and cylinder can be reused in the injection tool, thus saving material resources and the cost of purchasing the injection tool.

請求項４の発明によると、台座の円形突部を設けた部分に、被注入体に取付ける面で開口する環状溝を貫通孔と同軸心状の配置で設けたので、台座の厚みが部分的に厚くなり、この厚い部分に設ける環状溝を深く形成することができ、台座を被注入体への取付け面に取付け用接着剤で固定したとき、取付け用接着剤が環状溝を埋めることで、取付け用接着剤と台座の接着面積が多くなり、被注入体に対する台座及び注入具本体の固着強度の向上を図ることができ、接着剤注入時の圧力で注入具本体が外れるというようなことがなくなる。   According to the fourth aspect of the present invention, the annular groove opening on the surface to be attached to the injection target is provided in the portion provided with the circular protrusion of the pedestal so as to be arranged coaxially with the through hole. The annular groove provided in this thick part can be formed deeply, and when the pedestal is fixed to the mounting surface to the injected body with the mounting adhesive, the mounting adhesive fills the annular groove, The adhesive area between the mounting adhesive and the pedestal increases, and the fixing strength of the pedestal and the injection tool main body with respect to the injection target can be improved, and the injection tool main body comes off due to the pressure when the adhesive is injected. Disappear.

請求項５の発明によると、台座の貫通孔に、弾性材料を用いて形成された可動パイプを軸方向に移動可能となるよう取付けたので、台座を被注入体への取付け面に取付け用接着剤で取付けるとき、可動パイプの先端を被注入体への取付け面に当接させてクラックと導通状とすれば、台座を取付けるための取付け用接着剤が加圧された場合でも、貫通孔やクラックに侵入することがなく、シリンダ内とクラックの導通を確実に確保できるので、クラックへの接着剤の注入が確実に行えることになる。   According to the invention of claim 5, since the movable pipe formed using the elastic material is attached to the through hole of the pedestal so as to be movable in the axial direction, the pedestal is attached to the attachment surface to the injection target. When mounting with the agent, if the tip of the movable pipe is brought into contact with the mounting surface to the injection target to make it continuous with the crack, even if the mounting adhesive for mounting the pedestal is pressurized, Since it does not penetrate into the crack and the conduction between the inside of the cylinder and the crack can be reliably ensured, the adhesive can be reliably injected into the crack.

以下、この発明の実施の形態を図示例に基づいて説明する。   Hereinafter, embodiments of the present invention will be described based on illustrated examples.

図１（ａ）乃至（ｄ）に示す第１の実施の形態の注入具２１は、被注入体ｂに取付ける台座２２と、この台座２２に取付ける注入具本体２３とからなり、注入具本体２３は、前記台座２２に先端を固定するシリンダ２４と、前記シリンダ２４内に軸方向への移動が可能となるよう挿入されたピストン２５と、前記ピストン２５に常時前方への移動弾性を付勢するばね２６と、このばね２６の弾性を調整するばね押え部材２７とで形成され、前記ピストン２５に、接着剤通路２８がピストン２５と共に軸方向に貫通するピストン軸２９が設けられている。   The injection device 21 according to the first embodiment shown in FIGS. 1A to 1D includes a pedestal 22 attached to the injection target b and an injection device main body 23 attached to the pedestal 22. Includes a cylinder 24 whose tip is fixed to the pedestal 22, a piston 25 inserted in the cylinder 24 so as to be movable in the axial direction, and constantly urges the piston 25 to move forward. The piston 26 is formed by a spring 26 and a spring pressing member 27 that adjusts the elasticity of the spring 26, and the piston 25 is provided with a piston shaft 29 through which an adhesive passage 28 penetrates in the axial direction together with the piston 25.

上記台座２２は、合成樹脂を用いて円板状に形成され、被注入体ｂに取付ける面と反対側の一面側に、シリンダ２４の先端を外嵌状に締結するため、シリンダ２４の内径と同等かそれよりも大径の円形突部３０が設けられ、この円形突部３０の中心部に軸方向の貫通孔３１が設けられ、更に、この台座２２の円形突部３０を設けた部分に、被注入体ｂに取付ける面で開口する環状溝３２が貫通孔３１と同軸心状の配置で設けられている。   The pedestal 22 is formed in a disc shape using a synthetic resin, and the end of the cylinder 24 is fastened to one surface side opposite to the surface to be attached to the injection target b. A circular protrusion 30 having the same or larger diameter is provided, an axial through-hole 31 is provided at the center of the circular protrusion 30, and the circular protrusion 30 of the pedestal 22 is further provided in the portion provided with the circular protrusion 30. An annular groove 32 opened on the surface to be attached to the injection target b is provided coaxially with the through hole 31.

上記シリンダ２４は、好ましくは透明や半透明の合成樹脂を用い、先端が開口して後端が閉鎖された円筒状に形成され、このシリンダ２４の先端部が、シリンダ２４の内径と同一かそれよりも少し大径で、前記円形突部３０に外嵌する内径の螺筒部２４ａになっている。   The cylinder 24 is preferably made of a transparent or translucent synthetic resin and is formed in a cylindrical shape having an open front end and a closed rear end. The front end of the cylinder 24 is the same as the inner diameter of the cylinder 24. It is a screw cylinder part 24 a having a slightly larger diameter and having an inner diameter that fits over the circular protrusion 30.

図示の場合、台座２２の円形突部３０に対するシリンダ２４の着脱自在の固定は、シリンダ２４の先端を円形突部３０に外嵌螺合するねじ結合によって行う例を示し、嵌合部分はパッキン３３によって水密を保つようにしているが、円形突部３０へのシリンダ２４の固定は、円形突部３０とシリンダ２４の嵌合面の一方にＬ形の溝と他方に突起を設け、溝の屈曲部分と突起の係合によって抜け止めとするワンタッチ方式や、ビスによる締め付けで固定する構造を採用してもよい。   In the illustrated case, the cylinder 24 is detachably fixed to the circular protrusion 30 of the pedestal 22 by screw connection in which the tip of the cylinder 24 is externally screwed into the circular protrusion 30. The cylinder 24 is fixed to the circular protrusion 30 by providing an L-shaped groove on one of the fitting surfaces of the circular protrusion 30 and the cylinder 24 and a protrusion on the other, and bending the groove. You may employ | adopt the structure which fixes by the one-touch system which carries out the retaining by the engagement of a part and protrusion, and tightening with a screw | thread.

上記ピストン２５は、シリンダ２４内に軸方向へ移動可能に納まり、ピストンパッキン２５ａを介してシリンダ２４の内周面に摺接し、このピストン２５に一体成形したピストン軸２９は、ピストン２５がシリンダ２４の先端に位置する状態でシリンダ２４の後端から外部に突出する長さを有し、シリンダ２４の後壁には中心部にこのピストン軸２９が貫通する透孔３４が設けられ、前記ピストン軸２９の後端には、逆止弁を備えた注入プラグ３５が設けられている。   The piston 25 is accommodated in the cylinder 24 so as to be movable in the axial direction, is in sliding contact with the inner peripheral surface of the cylinder 24 via the piston packing 25a, and the piston 25 is integrally formed with the piston 25. The cylinder 24 has a length that protrudes outward from the rear end of the cylinder 24 in a state of being located at the front end of the cylinder 24, and a through hole 34 through which the piston shaft 29 passes is provided in the center of the rear wall of the cylinder 24. An injection plug 35 having a check valve is provided at the rear end of 29.

上記シリンダ２４の後端側周壁で軸心を挟む両側の位置にばね圧調整溝３６が設けられ、このばね圧調整溝３６に、ピストン軸２９の軸方向に沿って移動可能となるばね押え部材２７が取り付けられ、シリンダ２４内で前記ピストン２５とばね押え部材２７の間に、ピストン２５を常時前方へ押圧するばね２６が縮設されている。   Spring pressure adjusting grooves 36 are provided at positions on both sides of the axial center of the rear end side peripheral wall of the cylinder 24, and a spring pressing member that is movable along the axial direction of the piston shaft 29 in the spring pressure adjusting grooves 36. 27 is attached, and a spring 26 that constantly presses the piston 25 forward is provided between the piston 25 and the spring pressing member 27 in the cylinder 24.

上記ばね圧調整溝３６は、図１（ｂ）のように、両端が閉鎖された状態でシリンダ２４の軸方向に沿うよう設けた直線部３６ａと、この直線部３６ａの少なくとも先端側の端部に設けた周方向の屈曲部３６ｂで形成され、このばね圧調整溝３６に取付けるばね押え部材２７は、図１（ｃ）のように、シリンダ２４内に納まるプレート２７ａの中央にピストン軸２９の貫通孔３７を設け、このプレート２７ａの両側にばね圧調整溝３６への嵌合細幅部２７ｂと、嵌合細幅部２７ｂの端部に設けた押し込み操作板２７ｃとで形成されている。なお、切欠き部３６ｂは直線部３６ａの中間にも設け、ばね２６の弾性調節が多段に行えるようにしてもよい。   As shown in FIG. 1B, the spring pressure adjusting groove 36 includes a linear portion 36a provided along the axial direction of the cylinder 24 in a state where both ends are closed, and an end portion on at least the distal end side of the linear portion 36a. As shown in FIG. 1 (c), the spring pressing member 27 formed by the circumferential bent portion 36b provided in the cylinder is attached to the center of the plate 27a that is accommodated in the cylinder 24, as shown in FIG. A through hole 37 is provided, and the plate 27a is formed on both sides by a fitting narrow portion 27b to the spring pressure adjusting groove 36 and a push operation plate 27c provided at the end of the fitting narrow portion 27b. The notch 36b may be provided in the middle of the straight portion 36a so that the spring 26 can be elastically adjusted in multiple stages.

このばね押え部材２７は、両側の嵌合細幅部２７ｂを両側のばね圧調整溝３６に嵌合することにより、ばね圧調整溝３６に沿ってピストン軸１９の軸方向に移動可能となり、押し込み操作板２７ｃがシリンダ２４の外部に位置する取付けとなり、上記ピストン２５とこのばね押え部材２７のプレート２７ａの間に、ピストン軸２９に対して外嵌するようにばね２６が縮設されている。   The spring pressing member 27 is movable in the axial direction of the piston shaft 19 along the spring pressure adjusting groove 36 by fitting the fitting narrow portions 27b on both sides into the spring pressure adjusting grooves 36 on both sides, and is pushed in. The operation plate 27c is mounted outside the cylinder 24, and the spring 26 is contracted between the piston 25 and the plate 27a of the spring holding member 27 so as to be fitted to the piston shaft 29.

両端が閉鎖されたばね圧調整溝３６に対してばね押え部材２７をシリンダ２４の外部から取付けることができるよう、ばね押え部材２７の最大幅Ｗと、ばね圧調整溝３６の直線部３６ａにおける長さＬを、Ｗ＜Ｌの関係に設定し、また、ばね圧調整溝３６の直線部３６ａにおける幅Ｗ１をばね押え部材２７の板厚Ｔよりも広く設定することにより、ばね押え部材２７をその幅方向が直線部３６ａの長さ方向に沿う状態で、このばね押え部材２７を一方ばね圧調整溝３６の直線部３６ａから他方ばね圧調整溝３６の直線部３６ａに挿通し、嵌合細幅部２７ｂを直線部３６ａに位置させた位相でばね押え部材２７を９０°回転させれば、嵌合細幅部２７ｂが直線部３６ａに嵌まり込むことで、ばね押え部材２７をピストン軸２９の軸方向に移動可能となるよう取付けることができる。   The maximum width W of the spring pressing member 27 and the length of the spring pressure adjusting groove 36 at the straight portion 36a so that the spring pressing member 27 can be attached to the spring pressure adjusting groove 36 closed at both ends from the outside of the cylinder 24. L is set to a relationship of W <L, and the width W1 of the linear portion 36a of the spring pressure adjusting groove 36 is set to be wider than the plate thickness T of the spring pressing member 27. In a state where the direction is along the length direction of the straight portion 36a, the spring pressing member 27 is inserted from the straight portion 36a of the one spring pressure adjusting groove 36 to the straight portion 36a of the other spring pressure adjusting groove 36, and the fitting narrow portion If the spring pressing member 27 is rotated by 90 ° with the phase where 27b is positioned on the linear portion 36a, the fitting narrow width portion 27b is fitted into the linear portion 36a, so that the spring pressing member 27 is connected to the axis of the piston shaft 29. Move in direction It can be mounted so as to be.

このばね押え部材２７でばね２６の弾性を強くするには、ばね圧調整溝３６の後端に位置するばね押え部材２７をばね２６の弾性に抗して前方に押し込み、切欠き部３６ｂの位置でばね押え部材２７をシリンダ２４の周方向に回動させ、その嵌合細幅部２７ｂを切欠き部３６ｂに係止させれば、ばね２６を圧縮することができる。   In order to increase the elasticity of the spring 26 with the spring pressing member 27, the spring pressing member 27 located at the rear end of the spring pressure adjusting groove 36 is pushed forward against the elasticity of the spring 26, and the position of the notch 36b is determined. Thus, the spring 26 can be compressed by rotating the spring pressing member 27 in the circumferential direction of the cylinder 24 and engaging the fitting narrow portion 27b with the notched portion 36b.

上記のように、シリンダ２４の周壁における両側の位置に設けるばね圧調整溝３６を、その両端が閉鎖された構造とすると、シリンダ２４の強度を低下させることがなく、これによって、シリンダ２４の肉厚を厚くする必要がなくなり、シリンダ２４のコスト低減を図ることができる。   As described above, when the spring pressure adjusting grooves 36 provided at the positions on both sides of the peripheral wall of the cylinder 24 are structured so that both ends thereof are closed, the strength of the cylinder 24 is not lowered. It is not necessary to increase the thickness, and the cost of the cylinder 24 can be reduced.

第１の実施の形態の注入具２１は、上記のような構成であり、被注入体ｂであるコンクリート構造物の内部に発生したクラックｃ等の空隙を接着剤で補修するには、先ず、台座２２を被注入体ｂの外面にその貫通孔３１がクラックｃと導通するように取付け用接着剤ｄを用いて貼り付け固定する。このとき、取付け用接着剤ｄは、クラックｃにおいて貫通孔３１が臨む位置には塗布しないようにし、クラックｃに貫通孔３１が導通するようにしておく。   The injection tool 21 according to the first embodiment has the above-described configuration, and first repairs a gap such as a crack c generated in a concrete structure which is an injection target b with an adhesive. The pedestal 22 is affixed and fixed to the outer surface of the injection target b by using an adhesive d for attachment so that the through hole 31 is electrically connected to the crack c. At this time, the mounting adhesive d is not applied to the position where the through hole 31 faces in the crack c, and the through hole 31 is conducted to the crack c.

この固定において、被注入体ｂの外面に塗布した取付け用接着剤ｄに台座２２を押し付け、図１（ａ）と（ｄ）のように、取付け用接着剤ｄの一部を環状溝３２に進入させることで、取付用接着剤ｄと台座２２の接着面積を多くし、被注入体ｂに対する台座２２の固着強度を向上させるようにする。   In this fixing, the pedestal 22 is pressed against the mounting adhesive d applied to the outer surface of the injection target b, and a part of the mounting adhesive d is put into the annular groove 32 as shown in FIGS. 1 (a) and 1 (d). By making it approach, the adhesion area of the mounting adhesive d and the pedestal 22 is increased, and the fixing strength of the pedestal 22 to the injection target b is improved.

次に、シリンダ２４にばね押え部材２７を取付け、その内部にばねを組み込んだ状態でピストン軸２９を挿入して後端部を透孔３４に通し、このシリンダ２４の先端を台座２２に設けた円形突部３０にねじ込み固定すると、図１（ａ）のように、シリンダ２４は台座２２を介して被注入体ｂに取付けられ、円形突部３０に先端面が当接したピストン２５はシリンダ２４内に嵌合し、ばね２６は緩く圧縮された状態となる。   Next, the spring holding member 27 is attached to the cylinder 24, the piston shaft 29 is inserted with the spring incorporated therein, the rear end portion is passed through the through hole 34, and the tip of the cylinder 24 is provided on the base 22. When screwed and fixed to the circular protrusion 30, the cylinder 24 is attached to the injection target b via the pedestal 22 as shown in FIG. 1A, and the piston 25 whose tip surface is in contact with the circular protrusion 30 is the cylinder 24. The spring 26 is loosely compressed.

図１（ａ）の状態で、ピストン軸２９の後端に設けたプラグ３５に接着剤ａの注入ポンプを接続し、この注入ポンプで接着剤ａを押し出すと、プラグ３５の逆止弁が開弁してピストン軸２９の接着剤通路２８から貫通孔３１を通ってクラックに接着剤ａが流入し、クラックｃ内に一通り接着剤ａが注入されると、図１（ｄ）のように、接着剤ａに加わる圧力が高まることでこの圧力がピストン２５に作用し、ピストン２５はばね２６を圧縮して後方に移動することでシリンダ２４内に接着剤ａが蓄えられることになる。   In the state of FIG. 1 (a), when an injection pump of adhesive a is connected to the plug 35 provided at the rear end of the piston shaft 29 and the adhesive a is pushed out by this injection pump, the check valve of the plug 35 is opened. When the adhesive a flows into the crack from the adhesive passage 28 of the piston shaft 29 through the through hole 31, and the adhesive a is completely injected into the crack c, as shown in FIG. As the pressure applied to the adhesive a increases, this pressure acts on the piston 25, and the piston 25 compresses the spring 26 and moves backward, so that the adhesive a is stored in the cylinder 24.

シリンダ２４内に適量の接着剤ａが溜まると、プラグ３５から注入ポンプを取外すようにすればよく、接着剤ａはプラグ３５に設けた逆止弁の閉弁により外部に漏れることがなく、シリンダ２４内の接着剤ａは、ピストン２５を介してばね２６で加圧されているので、クラックｃに対して経時的に押出され、クラックｃの狭い部分にまで注入されることになる。   When an appropriate amount of adhesive a accumulates in the cylinder 24, the injection pump may be removed from the plug 35. The adhesive a does not leak to the outside by closing the check valve provided in the plug 35, Since the adhesive a in 24 is pressurized by the spring 26 through the piston 25, the adhesive a is extruded over time with respect to the crack c and injected into a narrow portion of the crack c.

シリンダ２４内の接着剤ａがピストン２５の前進によって押出されると、ばね２６は伸びてその圧縮弾性が弱まり、押出し力が低下するため、シリンダ２４内の接着剤ａが減少すると、ばね押え部材２７を前方に押し込み、切欠き部３６ｂの位置でばね押え部材２７を回動させ、その嵌合細幅部２７ｂを屈曲部３６ｂに係止させれば、ばね２６を増し圧縮することで接着剤ａの押出し圧力を追加的に高めることができる。   When the adhesive a in the cylinder 24 is pushed out by the advance of the piston 25, the spring 26 is stretched and its compression elasticity is weakened, and the pushing force is reduced. Therefore, when the adhesive a in the cylinder 24 is reduced, the spring pressing member 27 is pushed forward, the spring pressing member 27 is rotated at the position of the notch portion 36b, and the fitting narrow width portion 27b is locked to the bent portion 36b. The extrusion pressure of a can be increased additionally.

また、シリンダ２４内の接着剤ａが減少すると、プラグ３５に接着剤ａの注入ポンプを再度接続し、シリンダ２４内に接着剤ａを補充することで対応することもできる。   Further, when the adhesive a in the cylinder 24 decreases, it can be coped with by reconnecting the injection pump of the adhesive a to the plug 35 and replenishing the adhesive 24 with the adhesive 24 in the cylinder 24.

クラックｃを埋めた接着剤ａが硬化すれば注入が完了し、この完了後に被注入体ｂから台座２２を剥がして注入具２１を取外し、被注入体ｂの表面に残った取付け用接着剤ｄを剥離処理すればよい。   When the adhesive a filling the crack c is hardened, the injection is completed. After this completion, the base 22 is peeled off from the injection target b, the injection tool 21 is removed, and the mounting adhesive d remaining on the surface of the injection target b. May be peeled off.

台座２２から取外した注入具２１は、シリンダ２４内の接着剤ａが硬化しているため、注入具２１に対して、温湯での加温と温湯からの取出しによる冷却を与えることにより、接着剤ａに軟化と硬化を与え、シリンダ２４内周面との間に剥離を生じさせ、また、台座２２に対したシリンダ２４を回転させて切離すようにすることで、加温により軟化した接着剤ａを貫通孔３１とシリンダ２４の境界部分の位置で簡単に切断することができ、従って、台座２２から切離したシリンダ２４は、先端までストレートで先端が大きく開口しているので、接着剤ａをシリンダ２４の開口から簡単に取出すことができ、これにより、掃除ができてシリンダ２４の再使用が可能になる。   The injection tool 21 removed from the pedestal 22 has the adhesive a in the cylinder 24 hardened, so that the injection tool 21 is heated by warm water and cooled by removal from the hot water. The adhesive softened and heated by heating by giving softening and hardening to a, causing separation between the inner peripheral surface of the cylinder 24 and rotating the cylinder 24 against the pedestal 22 so as to be separated. a can be easily cut at the position of the boundary portion between the through hole 31 and the cylinder 24. Therefore, the cylinder 24 separated from the pedestal 22 is straight up to the tip, and the tip is greatly opened. It can be easily removed from the opening of the cylinder 24, which allows cleaning and reuse of the cylinder 24.

また、台座２２の貫通孔３１は短いと共に例えば１０ｍｍ前後の直径を有するので、貫通孔３１内の硬化した接着剤ａは、直径８ｍｍ程度の棒体で簡単に押出すことで抜けることになり、これによって台座２２も再使用が可能になる。   In addition, since the through hole 31 of the base 22 is short and has a diameter of, for example, about 10 mm, the cured adhesive a in the through hole 31 will come off by simply extruding it with a rod having a diameter of about 8 mm. As a result, the base 22 can also be reused.

次に、図２に示す第２の実施の形態の注入具２１ａは、上述した第１の実施の形態の注入具２１において、台座２２とシリンダ２４を合成樹脂で一体成形したものであり、第１の実施の形態と同一部分には同一符号を付して説明する。   Next, the injection device 21a of the second embodiment shown in FIG. 2 is obtained by integrally forming the base 22 and the cylinder 24 with a synthetic resin in the injection device 21 of the first embodiment described above. The same parts as those in the first embodiment will be described with the same reference numerals.

この第２の実施の形態の注入具２１ａは、第１の実施の形態と同様の構造を有する台座２２とシリンダ２４を一体成形し、シリンダ２４の先端側形状を大径のストレートにすると共に、シリンダの後端は円筒状態のまま開放させ、このシリンダ２４内に、第１の実施の形態と同じように、ピストン２５が軸方向への移動が自在となるよう収納され、このピストン２５に、ピストン２５がシリンダ２４の先端に位置する状態でシリンダ２４の後端から外部に突出する長さを有するピストン軸２９が設けられている。   The injection tool 21a of the second embodiment is formed by integrally forming a base 22 and a cylinder 24 having the same structure as that of the first embodiment, making the shape of the tip side of the cylinder 24 a straight having a large diameter, The rear end of the cylinder is opened in a cylindrical state, and the piston 25 is accommodated in the cylinder 24 so as to be freely movable in the axial direction, as in the first embodiment. A piston shaft 29 having a length protruding outward from the rear end of the cylinder 24 in a state where the piston 25 is positioned at the front end of the cylinder 24 is provided.

上記シリンダ２４の後端側内周に形成した雌ねじを利用して、シリンダ２４の後端側にばね押え部材３８が螺合され、このばね押え部材３８の中心部にピストン軸２９が貫通する透孔３９が設けられ、シリンダ２４の内部でピストン２５とばね押え部材３８の間にコイル状のばね２６が縮設され、ピストン２５を常時前方へ押圧すると共に、ばね押え部材３８をねじ込むことにより、ばね２６の弾性を追加増大させることができるようになっている。なお、前記ばね押え部材３８は、円板状でその外周にシリンダ２４の雌ねじに螺合する雄ねじが形成され、シリンダ２４の後端外部から回動操作するため、外端面に回動用工具の係合部が設けられている。   A spring pressing member 38 is screwed to the rear end side of the cylinder 24 by using a female screw formed on the inner periphery of the rear end side of the cylinder 24, and the piston shaft 29 penetrates through the center of the spring pressing member 38. A hole 39 is provided, and a coil-like spring 26 is contracted between the piston 25 and the spring pressing member 38 inside the cylinder 24 to constantly press the piston 25 forward and screw the spring pressing member 38. The elasticity of the spring 26 can be additionally increased. The spring pressing member 38 has a disk shape and is formed with a male screw threadedly engaged with the female screw of the cylinder 24 on the outer periphery thereof. The spring holding member 38 is rotated from the outside of the rear end of the cylinder 24. A joint is provided.

第２の実施の形態の注入具２１ａは、上記のような構成であり、被注入体ｂであるコンクリート構造物の内部に発生したクラックｃ等の空隙を接着剤で補修するには、先ず、シリンダ２４の先端に設けた台座２２を被注入体ｂの外面にその貫通孔３１がクラックｃと導通するように取付け用接着剤ｄを用いて貼り付け固定し、被注入体ｂに注入具２１ａを取付ける。   The injection tool 21a of the second embodiment has the above-described configuration, and first repairs a gap such as a crack c generated in the concrete structure that is the injection target b with an adhesive. The pedestal 22 provided at the tip of the cylinder 24 is affixed and fixed to the outer surface of the injection target b by using an adhesive d for mounting so that the through hole 31 is electrically connected to the crack c, and the injection tool 21a is fixed to the injection target b. Install.

この固定において、被注入体ｂの外面に塗布した取付け用接着剤ｄに台座２２を押し付け、取付け用接着剤ｄの一部で環状溝３２を埋めることで、取付け用接着剤ｄと台座２２の接着面積を多くし、被注入体ｂに対する台座２２の固着強度を向上させておく。   In this fixing, the pedestal 22 is pressed against the mounting adhesive d applied to the outer surface of the injection target b, and the annular groove 32 is filled with a part of the mounting adhesive d, so that the mounting adhesive d and the pedestal 22 are fixed. The adhesion area is increased, and the fixing strength of the pedestal 22 to the injection target b is improved.

上記シリンダ２４は、予め内部にピストン２５とばね２６を組み込み、シリンダ２４の後端に螺合したばね押え部材３８でばね２６を緩く圧縮し、ピストン２５をシリンダ２４の先端側に位置させた図示の状態にしておく。   The cylinder 24 has a piston 25 and a spring 26 previously incorporated therein, the spring 26 is loosely compressed by a spring pressing member 38 screwed into the rear end of the cylinder 24, and the piston 25 is positioned on the front end side of the cylinder 24. Keep in the state.

次に、ピストン軸２９の後端に設けたプラグ３５に接着剤ａの注入ポンプを接続し、この注入ポンプで接着剤ａを押し出すと、プラグ３５の逆止弁が開弁してピストン軸２９の接着剤通路２８から貫通孔３１を通ってクラックｃに接着剤ａが流入し、クラックｃ内に一通り接着剤ａが注入されると、接着剤ａに加わる圧力が高まることでこの圧力がピストン２５に作用し、ピストン２５はばね２６を圧縮して後方に移動することでシリンダ２４内に接着剤ａが蓄えられることになる。   Next, when an injection pump of the adhesive a is connected to the plug 35 provided at the rear end of the piston shaft 29 and the adhesive a is pushed out by this injection pump, the check valve of the plug 35 is opened and the piston shaft 29 is opened. When the adhesive a flows into the crack c from the adhesive passage 28 through the through-hole 31 and the adhesive a is injected into the crack c, the pressure applied to the adhesive a is increased and this pressure is increased. Acting on the piston 25, the piston 25 compresses the spring 26 and moves backward, whereby the adhesive a is stored in the cylinder 24.

シリンダ２４内に適量の接着剤ａが溜まると、プラグ３５から注入ポンプを取外すようにすればよく、接着剤ａはプラグ３５に設けた逆止弁の閉弁により外部に漏れることがなく、シリンダ２４内の接着剤ａは、ピストン２５を介してばね２６で加圧されているので、クラックｃに対して経時的に押出され、接着剤ａはクラックｃの狭い部分にまで注入されることになる。   When an appropriate amount of adhesive a accumulates in the cylinder 24, the injection pump may be removed from the plug 35. The adhesive a does not leak to the outside by closing the check valve provided in the plug 35, Since the adhesive a in 24 is pressurized by the spring 26 through the piston 25, it is pushed out over time against the crack c, and the adhesive a is injected into a narrow portion of the crack c. Become.

シリンダ２４内の接着剤ａがピストン２５の前進によって押出されると、ばね２６の圧縮弾性が弱まり、押出し力が低下するため、シリンダ２４内の接着剤ａが減少すると、ばね押え部材３８をねじ込み方向に回動させ、ばね２６を圧縮することで接着剤ａの押出し圧力を高めることができる。   When the adhesive a in the cylinder 24 is pushed out by the advancement of the piston 25, the compression elasticity of the spring 26 is weakened and the pushing force is reduced. Therefore, when the adhesive a in the cylinder 24 is reduced, the spring pressing member 38 is screwed. The extrusion pressure of the adhesive a can be increased by rotating in the direction and compressing the spring 26.

また、シリンダ２４内の接着剤が減少すると、プラグ３５に接着剤の注入ポンプを再度接続し、シリンダ２４内に接着剤を補充することで対応することもできる。   Further, when the adhesive in the cylinder 24 decreases, it can be dealt with by reconnecting the adhesive injection pump to the plug 35 and refilling the cylinder 24 with the adhesive.

クラックｃを埋めた接着剤が硬化すれば注入が完了し、被注入体ｂから台座２２を剥がして注入具２１ａを取外した後、被注入体ｂの表面における取付け用接着剤ｄを剥離処理すればよい。   When the adhesive filling the crack c is cured, the injection is completed. After removing the base 22 from the injection target b and removing the injection tool 21a, the mounting adhesive d on the surface of the injection target b is peeled off. That's fine.

シリンダ２４内の接着剤は硬化しているが、シリンダ２４は、後端に螺合したばね押え部材３８を取外し、ピストン２５とばね２６を抜き取れば、シリンダ２４は後端がストレートで大きく開口するので、シリンダ２４の全体に衝撃を加えたり、例えば、注入具２１ａに温湯での加温と冷却を加え、シリンダ２４の内周面に対して接着部を剥離させ、台座２２の貫通孔３１は短いと共に例えば１０ｍｍ前後の直径を有するので、貫通孔３１内の硬化した接着剤ａを直径８ｍｍ程度の棒体で叩にすれば、硬化した接着剤をシリンダ２４の後端側開口から簡単に取出すことができ、これによって台座２２を備えたシリンダ２４の再使用が可能になる。   Although the adhesive in the cylinder 24 is hardened, the cylinder 24 is opened with a straight rear end and a large opening when the spring holding member 38 screwed to the rear end is removed and the piston 25 and the spring 26 are pulled out. Therefore, an impact is applied to the entire cylinder 24, for example, heating and cooling with warm water is applied to the injection tool 21a, and the adhesive portion is peeled off from the inner peripheral surface of the cylinder 24, so that the through hole 31 of the base 22 is provided. Is short and has a diameter of, for example, about 10 mm. Therefore, if the hardened adhesive a in the through hole 31 is struck with a rod having a diameter of about 8 mm, the hardened adhesive can be easily removed from the rear end side opening of the cylinder 24. The cylinder 24 with the pedestal 22 can be reused.

次に、図３に示す第３の実施の形態の注入具２１ｂは、上述した第１の実施の形態の注入具２１と同様、台座２２に対してシリンダ２４をねじ結合によって着脱自在に取付けると共に、シリンダ２４の内部に収納したピストン２５に、常時前方への移動弾性を付勢する弾性体４０をシリンダ２４の外部に配置したものであり、上述した第１の実施の形態と同一部分には同一符号を付して説明に代える。   Next, in the injection device 21b of the third embodiment shown in FIG. 3, the cylinder 24 is detachably attached to the base 22 by screw connection, similarly to the injection device 21 of the first embodiment described above. The piston 25 housed inside the cylinder 24 is provided with an elastic body 40 that constantly urges forward moving elasticity outside the cylinder 24. The same parts as in the first embodiment described above The same reference numerals will be used instead of the description.

この第３の実施の形態の注入具２１ｂは、第１の実施の形態と同様の構造を有する台座２２とシリンダ２４をねじ結合すると共に、シリンダ２４の後端壁にピストン軸２９の貫通孔４１が設けられている。   The injection tool 21b according to the third embodiment is configured such that a base 22 having the same structure as that of the first embodiment and a cylinder 24 are screwed together, and a through hole 41 of a piston shaft 29 is formed in a rear end wall of the cylinder 24. Is provided.

上記シリンダ２４の内部に組み込んだピストン２５のピストン軸２９が貫通孔４１からシリンダ２４の後方に突出し、このピストン軸２９の後端部の位置に、前方への位置決め固定できるように取付けた両側に突出するばね掛け腕４２を取付け、このばね掛け腕４２と台座２２の両側に設けたフック４３の間に弾性体４０を緊張状態で架け渡すことにより、ピストン２５に常時前方への移動弾性を付勢している。   The piston shaft 29 of the piston 25 incorporated in the cylinder 24 protrudes from the through hole 41 to the rear of the cylinder 24, and is mounted on both sides of the piston shaft 29 so that the piston shaft 29 can be positioned and fixed forward. A protruding spring hook arm 42 is attached, and the elastic body 40 is stretched between the spring hook arm 42 and the hooks 43 provided on both sides of the pedestal 22 in a tensioned state. It is fast.

上記弾性体４０は、輪ゴムやこれとは別にコイルばねを用いることができ、輪ゴムの場合、数を増減することで弾性を調節することができる。   As the elastic body 40, a rubber band or a coil spring can be used separately. In the case of a rubber band, the elasticity can be adjusted by increasing or decreasing the number.

この第３の実施の形態の注入具２１ｂは、上記のような構成であり、被注入体ｂであるコンクリート構造物の内部に発生したクラックｃ等の空隙を接着剤ａで補修するには、先ず、第１の実施の形態と同様、台座２２を被注入体ｂの外面にその貫通孔３１がクラックｃと導通するように取付け用接着剤ｄを用いて貼り付け固定し、次に、ピストン２５を組み込んだシリンダ２４を台座２２に螺合し、この被注入体ｂにシリンダ２４を取付ける。   The injection tool 21b of the third embodiment has the above-described configuration, and repairs a gap such as a crack c generated in the concrete structure that is the injection target b with the adhesive a. First, as in the first embodiment, the pedestal 22 is affixed and fixed to the outer surface of the injected body b using the mounting adhesive d so that the through hole 31 is electrically connected to the crack c. A cylinder 24 incorporating 25 is screwed onto the pedestal 22, and the cylinder 24 is attached to the injection target b.

上記シリンダ２４は、予め内部にピストン２５を組み込み、シリンダ２４を被注入体ｂに取付けた後、シリンダ２４の後端から突出するピストン軸２９の後端部にばね掛け腕４２を取付け、このばね掛け腕４２と台座２２のフック４３の間に弾性体４０を掛け渡し、ピストン２５をシリンダ２４の先端側に位置させた状態にしておく。   In the cylinder 24, the piston 25 is previously incorporated in the cylinder 24, the cylinder 24 is attached to the injection target b, and then a spring hook arm 42 is attached to the rear end portion of the piston shaft 29 protruding from the rear end of the cylinder 24. The elastic body 40 is stretched between the hanging arm 42 and the hook 43 of the pedestal 22 so that the piston 25 is positioned on the tip side of the cylinder 24.

次に、ピストン軸２９の後端に設けたプラグ３５に接着剤ａの注入ポンプを接続し、この注入ポンプで接着剤ａを押し出すと、プラグ３５の逆止弁が開弁してピストン軸２９の接着剤通路２８から貫通孔３１を通ってクラックｃに接着剤ａが流入し、クラックｃ内に一通り接着剤ａが注入されると、接着剤ａに加わる圧力が高まることでこの圧力がピストン２５に作用し、ピストン２５は弾性体４０を引き伸ばして後方に移動することでシリンダ２４内に接着剤ａが蓄えられることになる。   Next, when an injection pump of the adhesive a is connected to the plug 35 provided at the rear end of the piston shaft 29 and the adhesive a is pushed out by this injection pump, the check valve of the plug 35 is opened and the piston shaft 29 is opened. When the adhesive a flows into the crack c from the adhesive passage 28 through the through-hole 31 and the adhesive a is injected into the crack c, the pressure applied to the adhesive a is increased and this pressure is increased. Acting on the piston 25, the piston 25 stretches the elastic body 40 and moves backward, whereby the adhesive a is stored in the cylinder 24.

シリンダ２４内に適量の接着剤ａが溜まると、プラグ３５から注入ポンプを取外すようにすればよく、接着剤ａはプラグ３５に設けた逆止弁の閉弁により外部に漏れることがなく、シリンダ２４内の接着剤ａは、ピストン２５を介して弾性体４０で加圧されているので、クラックｃに対して経時的に押出され、接着剤ａがクラックｃの狭い部分にまで注入されることになる。   When an appropriate amount of adhesive a accumulates in the cylinder 24, the injection pump may be removed from the plug 35. The adhesive a does not leak to the outside by closing the check valve provided in the plug 35, Since the adhesive a in 24 is pressurized by the elastic body 40 through the piston 25, the adhesive a is extruded over time with respect to the crack c, and the adhesive a is injected into a narrow portion of the crack c. become.

シリンダ２４内の接着剤ａがピストン２５の前進によって押出されると、弾性体４０の圧縮せんとする弾性が弱まり、押出し力が低下するため、シリンダ２４内の接着剤ａが減少すると、弾性体４０の数を増やすかプラグ３５に接着剤ａの注入ポンプを再度接続し、シリンダ２４内に接着剤を補充することで押出力の低下に対応することができる。   When the adhesive a in the cylinder 24 is pushed out by the advance of the piston 25, the elasticity of the elastic body 40 becomes weaker and the pushing force is reduced. Therefore, when the adhesive a in the cylinder 24 is reduced, the elastic body Increasing the number 40 or reconnecting the injection pump of the adhesive a to the plug 35 and replenishing the adhesive in the cylinder 24 can cope with a decrease in the pushing force.

クラックｃを埋めた接着剤ａが硬化すれば注入が完了し、弾性体４０を外してシリンダ２４を台座２２から取り外し、被注入体ｂから台座２２を剥がした後、被注入体ｂの表面における取付け用接着剤ｄを剥離処理すればよい。   When the adhesive a filling the crack c is cured, the injection is completed, the elastic body 40 is removed, the cylinder 24 is removed from the pedestal 22, the pedestal 22 is peeled off from the injection target b, and then the surface of the injection target b is removed. The attachment adhesive d may be peeled off.

シリンダ２４内の接着剤ａは硬化しているが、台座２２から取外したシリンダ２４は先端がストレートで大きく開口するので、シリンダ２４の全体に衝撃を加えたり、例えば、接着部ａを軟化、硬化させることで、シリンダ２４の開口から簡単に取出すことができ、また、上述したように、台座２２の直径１０ｍｍ伝後となる貫通孔３１からも接着剤を抜き取ることができ、これにより、台座２２とシリンダ２４は再使用が可能になる。   Although the adhesive a in the cylinder 24 is hardened, the cylinder 24 removed from the base 22 has a straight tip and a large opening, so that an impact is applied to the entire cylinder 24, for example, the adhesive portion a is softened and hardened. By doing so, the adhesive can be easily taken out from the opening of the cylinder 24, and as described above, the adhesive can also be taken out from the through hole 31 after the diameter of the pedestal 22 reaches 10 mm. And the cylinder 24 can be reused.

図４は、上述した各実施の形態の注入具２１、２１ａ、２１ｂにおいて、台座２２の貫通孔３１に、可動パイプ４４を軸方向に移動可能となるよう取付け、被注入体ｂに取付け用接着剤ｄで台座２２を固定するとき、クラックｃの開口部が取付け用接着剤ｄで埋まることなく、クラックｃに対してシリンダ２４を確実に導通させることができるようにした例を示している。   FIG. 4 shows that the movable pipe 44 is attached to the through hole 31 of the pedestal 22 so as to be movable in the axial direction in the injection devices 21, 21 a, 21 b of the above-described embodiments, and attached to the injection target b. An example is shown in which when the base 22 is fixed with the agent d, the cylinder 24 can be reliably conducted to the crack c without the opening of the crack c being filled with the mounting adhesive d.

上記可動パイプ４４は、ゴムや樹脂等の弾性材料を用いて台座２２の貫通孔３１に対して嵌合する外径の筒状で、後端が端壁４５で閉鎖された筒状に形成され、この端壁４５にスリット４６を設け、通過する接着剤ａでスリット４６が押し開かれる構造になっている。   The movable pipe 44 is formed in a cylindrical shape having an outer diameter that is fitted into the through hole 31 of the pedestal 22 using an elastic material such as rubber or resin, and has a rear end closed by an end wall 45. The slit 46 is provided in the end wall 45, and the slit 46 is pushed and opened by the passing adhesive a.

この可動パイプ４４は、台座２２を被注入体ｂに接着する前に、貫通孔３１に対してその先端が台座２２の被注入体ｂへの取付け面よりも前方に突出するように取付けておけば、図４（ｂ）のように、台座２２を被注入体ｂへの取付け面に取付け用接着剤ｄで取付るとき、前記可動パイプ４４の先端を被注入体ｂへの取付け面に当接させてクラックｃと導通状とし、台座２２を取付けるための取付け用接着剤ｄが台座２２で加圧された場合でも、前記取付け用接着剤ｄが貫通孔３１やクラックｃに侵入するのを防ぐことができ、シリンダ２４内とクラックｃの導通を確保することで、クラックｃへの接着剤ａの注入が確実に行えることになり、この可動パイプ４４は、上記した第１乃至第３の各実施の形態にそれぞれ採用することができる。   Before the base pipe 22 is bonded to the injection target b, the movable pipe 44 can be attached to the through hole 31 so that the tip thereof protrudes forward from the mounting surface of the base 22 to the injection target b. For example, as shown in FIG. 4B, when the pedestal 22 is attached to the mounting surface to the injection target b with the mounting adhesive d, the tip of the movable pipe 44 is brought into contact with the mounting surface to the injection target b. Even when the mounting adhesive d for mounting the pedestal 22 is pressed by the pedestal 22 and brought into contact with the crack c, the mounting adhesive d enters the through hole 31 and the crack c. By ensuring the continuity between the cylinder 24 and the crack c, it is possible to reliably inject the adhesive a into the crack c. The movable pipe 44 has the above-described first to third features. Each embodiment can be adopted.

（ａ）は第１の実施の形態の注入具を被注入体に取付けた状態を示す縦断正面図、（ｂ）はシリンダの縦断正面図、（ｃ）はばね押え部材の正面図、（ｄ）は被注入体に取付けた注入具に接着剤を注入した状態を示す縦断正面図(A) is a longitudinal front view showing a state in which the injection tool of the first embodiment is attached to an injection target, (b) is a longitudinal front view of a cylinder, (c) is a front view of a spring pressing member, (d ) Is a longitudinal front view showing a state in which an adhesive is injected into an injection tool attached to an injection target. 第２の実施の形態の注入具を被注入体に取付けた状態を示す縦断正面図Longitudinal front view showing a state in which the injection device of the second embodiment is attached to an injection target 第３の実施の形態の注入具を被注入体に取付け、接着剤を注入した状態を示す縦断正面図The longitudinal front view which shows the state which attached the injection tool of 3rd Embodiment to the to-be-injected body, and inject | poured the adhesive agent （ａ）は台座と可動パイプを示す分解斜視図、（ｂ）は台座とこれに取付けた可動パイプを被注入体に取付けた状態を示す縦断正面図(A) is an exploded perspective view showing a pedestal and a movable pipe, (b) is a longitudinal front view showing a state where the pedestal and a movable pipe attached thereto are attached to an injection target. （ａ）は従来の注入具を被注入体に取付け、接着剤を注入した状態を示す縦断正面図、（ｂ）は従来の他の例の注入具を被注入体に取付け、接着剤を注入した状態を示す縦断正面図(A) is a longitudinal front view showing a state in which a conventional injection tool is attached to an injection target and an adhesive is injected, and (b) is a case where another conventional injection tool is attached to the injection target and an adhesive is injected. Longitudinal front view showing the condition

符号の説明Explanation of symbols

２１ 注入具
２２ 台座
２３ 注入具本体
２４ シリンダ
２５ ピストン
２６ ばね
２７ ばね押え部材
２８ 接着剤通路
２９ ピストン軸
３０ 円形突部
３１ 貫通孔
３２ 環状溝
３３ パッキン
３４ 透孔
３５ 注入プラグ
３６ ばね圧調整溝
３７ 貫通孔
３８ ばね押え部材
４０ 弾性体
４１ 貫通孔
４２ ばね掛け腕
４３ フック 21 Injection tool 22 Base 23 Injection tool body 24 Cylinder 25 Piston 26 Spring 27 Spring pressing member 28 Adhesive passage 29 Piston shaft 30 Circular protrusion 31 Through hole 32 Annular groove 33 Packing 34 Through hole 35 Injection plug 36 Spring pressure adjustment groove 37 Through hole 38 Spring pressing member 40 Elastic body 41 Through hole 42 Spring hook arm 43 Hook

Claims (4)

接着剤の被注入体に取付ける台座にシリンダの先端を固定し、このシリンダ内に軸方向への移動が可能となるよう挿入されたピストンに、接着剤通路がピストンと共に軸方向に貫通するピストン軸を設け、前記シリンダの後端から外部に突出するピストン軸の後端に逆止弁を備えた注入プラグを設け、上記ピストンに弾性体で常時前方への移動弾性を付勢したクラックへの接着剤の注入具であって、
前記台座は、座板の被注入体に取付ける面と反対側の面に、シリンダの先端を外嵌状に締結するため、シリンダの内径と同等かそれよりも大径の円形突部が設けられ、この円形突部の中心部に軸方向の貫通孔を設けて形成され、前記シリンダの先端部が円形突部に外嵌する内径で開口しており、
前記台座の円形突部を設けた部分に、被注入体に取付ける面で開口する環状溝が貫通孔と同軸心状の配置で設けられている、クラックへの接着剤の注入具。 A piston shaft in which the tip of the cylinder is fixed to a pedestal to be attached to the adhesive injection target, and the adhesive passage extends axially along with the piston in the piston inserted in the cylinder so as to be movable in the axial direction. An injection plug provided with a check valve is provided at the rear end of the piston shaft protruding outward from the rear end of the cylinder, and the piston is bonded to a crack that is always urged to move forward by an elastic body. An agent injection tool,
The pedestal is provided with a circular protrusion having a diameter equal to or larger than the inner diameter of the cylinder on the surface of the seat plate opposite to the surface to be attached to the injection target, in order to fasten the tip of the cylinder. The center of the circular protrusion is formed with an axial through hole, and the tip of the cylinder is open with an inner diameter that fits around the circular protrusion.
An adhesive injection tool for a crack, wherein an annular groove that opens on a surface to be attached to an injection target is provided at a portion provided with a circular protrusion of the pedestal in an arrangement coaxial with a through hole . 上記シリンダの後端側の位置に、このシリンダの周壁で軸線を挟む両側の位置にばね圧調整溝を設け、前記シリンダの後端側の位置に、ピストン軸に外嵌する状態で両側の細幅部が両側のばね圧調整溝に納まり、このばね圧調整溝に沿ってシリンダの軸方向に移動可能となるばね押え部材を取付け、このばね押え部材とピストンの間にピストンに常時前方への移動弾性を付勢するばねを縮設し、前記ばね圧調整溝は、シリンダの軸方向に位置する両端が閉鎖され、少なくとも先端側の端部にばね押え部材を回動させることによって細幅部を係止する切欠き部が設けられている請求項１に記載のクラックへの接着剤の注入具。   A spring pressure adjusting groove is provided at a position on the rear end side of the cylinder at positions on both sides sandwiching the axis line with the peripheral wall of the cylinder. A spring holding member that fits in the spring pressure adjustment groove on both sides and can move in the axial direction of the cylinder along the spring pressure adjustment groove is attached, and the piston is always forwarded to the piston between the spring holding member and the piston. A spring for energizing the moving elasticity is contracted, and the spring pressure adjusting groove is closed at both ends positioned in the axial direction of the cylinder, and at least the end of the narrow end is rotated by rotating the spring pressing member at the end on the tip side. The tool for injecting an adhesive into a crack according to claim 1, wherein a notch portion is provided for engaging the crack. 先端側がストレートな筒状で後端が開放されたシリンダの先端部に、接着剤の被注入体に取付ける台座を一体に設け、前記シリンダ内に軸方向への移動が可能となるよう挿入されたピストンに、接着剤通路がピストンと共に軸方向に貫通するピストン軸を設け、前記シリンダの後端から外部に突出するピストン軸の後端に逆止弁を備えた注入プラグを設け、上記ピストンに弾性体で常時前方への移動弾性を付勢したクラックへの接着剤の注入具であって、
前記台座とシリンダの先端部が、座板の被注入体に取付ける面と反対側の面に位置し、外径がシリンダと等しい円形突部を介して一体成形され、この円形突部の中心部に軸方向の貫通孔が設けられており、
前記台座の円形突部を設けた部分に、被注入体に取付ける面で開口する環状溝が貫通孔と同軸心状の配置で設けられている、クラックへの接着剤の注入具。 A pedestal that is attached to the injection target of the adhesive is integrally provided at the front end of the cylinder whose front end is a straight cylinder and the rear end is opened, and is inserted into the cylinder so as to be movable in the axial direction. The piston is provided with a piston shaft in which the adhesive passage penetrates in the axial direction together with the piston, and an injection plug provided with a check valve is provided at the rear end of the piston shaft protruding outward from the rear end of the cylinder. A tool for injecting an adhesive into a crack that constantly urges forward movement elasticity in the body,
The pedestal and the tip of the cylinder are located on the surface opposite to the surface of the seat plate attached to the injection target, and are integrally formed through a circular protrusion having the same outer diameter as that of the cylinder. Is provided with an axial through hole,
An adhesive injection tool for a crack, wherein an annular groove that opens on a surface to be attached to an injection target is provided at a portion provided with a circular protrusion of the pedestal in an arrangement coaxial with a through hole . 上記台座の貫通孔に、弾性材料を用いて一端が端壁で閉鎖された筒状に形成され、この端壁に通過する接着剤で押し開かれるスリットを設けた可動パイプを軸方向に移動可能となるよう取付けた請求項１から３の何れかに記載のクラックへの接着剤の注入具。
A movable pipe that is formed in a cylindrical shape with one end closed by an end wall using an elastic material in the through hole of the pedestal, and provided with a slit that is pushed open by an adhesive that passes through the end wall can be moved in the axial direction. The adhesive injection tool for cracks according to any one of claims 1 to 3 , which is attached so as to become.
JP2008006413A 2008-01-16 2008-01-16 Adhesive injection tool for cracks Active JP4976314B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008006413A JP4976314B2 (en) 2008-01-16 2008-01-16 Adhesive injection tool for cracks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008006413A JP4976314B2 (en) 2008-01-16 2008-01-16 Adhesive injection tool for cracks

Publications (2)

Publication Number Publication Date
JP2009167679A JP2009167679A (en) 2009-07-30
JP4976314B2 true JP4976314B2 (en) 2012-07-18

Family

ID=40969167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008006413A Active JP4976314B2 (en) 2008-01-16 2008-01-16 Adhesive injection tool for cracks

Country Status (1)

Country Link
JP (1) JP4976314B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105822085B (en) * 2016-05-11 2018-01-26 金华市鸿莱科技有限公司 A kind of building gap provisions for grouting of convenient use
CN105822084B (en) * 2016-05-11 2017-12-26 江山市飞龙进出口有限公司 One kind building gap provisions for grouting
CN105822083B (en) * 2016-05-11 2017-12-29 安溪县百家宜家居用品有限公司 A kind of energy saving building gap provisions for grouting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60129367A (en) * 1983-12-14 1985-07-10 コニシ株式会社 Adhesive injecting construction method
JPH0346109Y2 (en) * 1985-12-28 1991-09-30
JP2999289B2 (en) * 1991-04-23 2000-01-17 小林 リタ Equipment for injecting repair materials into concrete structures
JPH09279855A (en) * 1996-04-15 1997-10-28 Rita Kobayashi Automatic chemical injector

Also Published As

Publication number Publication date
JP2009167679A (en) 2009-07-30

Similar Documents

Publication Publication Date Title
JP4976314B2 (en) Adhesive injection tool for cracks
PL2202050T3 (en) Method of anchoring a connector, and connector
CA2851778A1 (en) Retaining arrangement for casting into a concrete element
KR20180125579A (en) Connecting devices and associated assembly methods for fluid lines
KR20100117187A (en) A pipe connector
JP5334427B2 (en) Fixing structure to wall material and anchor bolt
KR20160142993A (en) injecting apparatus for crack repair of concrete structure using magnet
JPH1088817A (en) Concrete repair agent injection plug and connector
JP4976189B2 (en) Grout injection tool
JP4812709B2 (en) Collet for mortar layer repair work
JP5362277B2 (en) Syringe type container
KR101785805B1 (en) Valve device for gas injector
KR101245862B1 (en) Grout injector
JP2019007217A (en) Repair method and injection tool
JP4817292B2 (en) Repair material injector for crack repair
JP4920435B2 (en) connector
JP6400968B2 (en) Implanting member fixing device
JPH0355715Y2 (en)
JP7339789B2 (en) Anchor and anchor construction method
FR3041717A1 (en) ANKLE FOR ATTACHING A PIECE TO A HOLLOW OR FULL SUPPORT MATERIAL
JPH039553Y2 (en)
JP2005207474A (en) Bushing
JPH0314746Y2 (en)
JP2007063808A (en) Crack repairing tool for concrete member
JPH0412933Y2 (en)

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101026

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110830

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111213

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120112

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

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120403

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120412

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150420

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250