JP2020125628A - Anchor bolt holder - Google Patents

Anchor bolt holder Download PDF

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JP2020125628A
JP2020125628A JP2019018442A JP2019018442A JP2020125628A JP 2020125628 A JP2020125628 A JP 2020125628A JP 2019018442 A JP2019018442 A JP 2019018442A JP 2019018442 A JP2019018442 A JP 2019018442A JP 2020125628 A JP2020125628 A JP 2020125628A
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plate portion
anchor bolt
flat plate
opening
anchor
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JP7220578B2 (en
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石田 哲也
Tetsuya Ishida
哲也 石田
秀 冨樫
Shigeru Togashi
秀 冨樫
政夫 山岸
Masao Yamagishi
政夫 山岸
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Conglo Coltd
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Conglo Coltd
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Abstract

To provide an anchor bolt holder which has a sufficient fixing force even if it is not tied to a foundation standing horizontal reinforcing bar, does not cause core misalignment, and can easily secure verticality of an anchor bolt and finely adjust the longitudinal direction.SOLUTION: An anchor bolt holder 1 comprises a main body 2 having a substantially U-shaped cross section to which flat plate portions are connected. A first flat plate portion has a length longer than that of a second flat plate portion, and has an end plate portion that is bent at a substantially right angle at a tip edge in the length direction. An opening into which an upper portion of a form A is inserted is formed between the end plate portion and a tip of the second flat plate portion. The end plate portion is provided with a first fixing member 11 for pressing and fixing the form. Circular holes 12, 13 having the same diameter, through which anchor bolts can be inserted, are concentrically formed in corresponding portions of both flat plate portions, and a second fixing member 14 for pressing and fixing the anchor bolts is provided on a connecting plate portion. A core confirmation opening 15 for confirming the radial center of the anchor bolt is formed at a position corresponding to the opening in the first flat plate portion.SELECTED DRAWING: Figure 1

Description

この発明は、アンカーボルト保持具に関し、詳しくは戸建木造住宅などの小規模建築物の建設に際して基礎コンクリートを打設するときに型枠に着脱可能に取り付けられ、コンクリート内に埋設されるアンカーボルトを、垂直性を保って保持するのに好適な技術に係るものである。 The present invention relates to an anchor bolt holder, and more specifically, an anchor bolt that is removably attached to a formwork and is embedded in concrete when placing basic concrete when constructing a small-scale building such as a detached wooden house. The present invention relates to a technique that is suitable for maintaining the verticality.

一般に市販されているアンカーボルト保持具は、アンカーボルトを基礎立ち上り横鉄筋に結束することで、アンカーボルトの垂直を維持している。しかし、工期の短縮等により基礎立ち上り作業工程の手順が型枠及び配筋完了後にアンカーボルト設置となる場合が多く、このような場合にはアンカーボルトを該横鉄筋に結束することができなかった。 Anchor bolt holders that are commercially available generally maintain the anchor bolt in a vertical position by binding the anchor bolt to a foundation standing upright transverse reinforcing bar. However, due to the shortening of the construction period, etc., the procedure of the foundation rising work process is often the installation of anchor bolts after the completion of the formwork and bar arrangement, and in such cases, the anchor bolts could not be bound to the horizontal rebar. ..

しかも、市販のアンカーボルト保持具ではアンカーボルトの圧接力が無く、生コンクリートを打設する際、そのコンクリートの圧力やバイブレータの影響によりアンカーボルトが傾斜したり、移動したりする。換言すると、市販のアンカーボルト保持具は、アンカーボルトの上部を固定部材により一点保持するだけであるため、生コンの打設時に負荷がかかると、アンカーボルトの下部が振れて傾斜したり移動する等、その垂直性の確保が難しかった。その結果、後工程である躯体施工に悪影響を与えることがあった。 Moreover, commercially available anchor bolt holders do not have a pressure contact force with the anchor bolts, and when pouring fresh concrete, the anchor bolts are inclined or moved due to the pressure of the concrete and the effect of the vibrator. In other words, the commercially available anchor bolt holder only holds the upper part of the anchor bolt with a fixing member at a single point, and therefore, when a load is applied during the placing of the ready-mixed concrete, the lower part of the anchor bolt swings and tilts or moves. , It was difficult to secure its verticality. As a result, it may have a bad influence on the construction of the body, which is a post-process.

一方、出願人の調査によれば、この種の先行技術文献として例えば特許文献1に示すようなものが知られている。この特許文献1に開示されている技術は、基礎コンクリートを打設するための型枠上に固定される位置決め具と、この位置決め具に組み付けられる保持具とからなり、前記基礎コンクリート内にアンカーボルトを埋設施工するためのアンカーボルト施工装置であって、前記位置決め具を、前記型枠上に載置して固定される基部と、これら基部間に操作開口を形成しながら橋渡しされて、前記保持具を保持することになる保持桟とを有したものとするとともに、保持具を、前記保持桟に差し込まれる差込み開口と、前記アンカーボルトを前記保持桟に対して垂下状に挿入し得る挿入部と、前記アンカーボルトを前記保持桟の端面に向けて圧接させる圧接部材とを備えたものとして、前記挿入部内に挿通した前記アンカーボルトを、前記保持桟の端面と、前記保持具の挿入部又は圧接部材とによって挟持し得るようにしたものである。 On the other hand, according to the research conducted by the applicant, as a prior art document of this type, for example, the one shown in Patent Document 1 is known. The technique disclosed in Patent Document 1 includes a positioning tool that is fixed on a formwork for placing foundation concrete and a holder that is assembled to the positioning tool. An anchor bolt is provided in the foundation concrete. An anchor bolt construction device for burying construction, wherein the positioning tool is bridged while forming an operation opening between the base part which is mounted and fixed on the formwork, and the holding part. A holding bar for holding the tool, a holding opening for inserting the holding tool into the holding bar, and an insertion portion for inserting the anchor bolt in a hanging shape with respect to the holding bar. And a pressure contact member that presses the anchor bolt toward the end surface of the holding bar, the anchor bolt inserted into the insertion part, the end surface of the holding bar, the insertion part of the holder or It is designed to be able to be sandwiched by a pressure contact member.

しかし、この施工装置で用いている保持具は、型枠ではなく位置決め具に組み付けられて設置されるものであるのに加え、二枚の支持板を有し保持桟を介して圧接部材でアンカーボルトを固定しているため垂直性についてはある程度確保ができて、基礎の幅方向は決まるが、長手方向のアンカーボルトの微調整ができず、保持桟の設置作業とともに、保持具の差し込み、位置出し、アンカーボルトの挿入及び固定を必要とし、複雑な手順となるためアンカーボルト位置の精度を出し難い。また、アンカーボルト芯を確認するために、基礎型枠に墨出しされた印から固定治具の幅を差し引く等の計算をする等、複雑な手順も必要となり、またそれに関連して種類の違う異径のアンカーボルトの確認作業が煩雑となる、等々の問題点があった。 However, the holder used in this construction device is installed not by the formwork but by the positioning tool, and in addition, it has two support plates and is anchored by a pressure contact member via a holding bar. Since the bolts are fixed, the verticality can be secured to some extent, and the width direction of the foundation is determined, but the anchor bolts in the longitudinal direction cannot be finely adjusted, and the retainer is installed and the holder is inserted and positioned. It is difficult to obtain the accuracy of the anchor bolt position because it requires complicated operation and anchor bolt insertion and fixing. Also, in order to check the anchor bolt core, complicated procedures such as calculation such as subtracting the width of the fixing jig from the mark stamped on the basic formwork are required, and related types are different. There were problems such as the work of checking anchor bolts of different diameters became complicated.

特開2008−169549号公報(請求項1、図1〜4)JP, 2008-169549, A (claim 1, Drawings 1-4).

そこで、この発明は、前記従来の技術の問題を解決することができ、アンカーボルトを基礎立ち上り横鉄筋に結束しなくとも十分な保持力を有し、アンカーボルトの芯ズレが生じないで、簡易にアンカーボルトの垂直性の確保を可能とするとともに、長手方向のアンカーボルトの微調整も行うことができるアンカーボルト保持具を提供することを目的とする。 Therefore, the present invention is capable of solving the problems of the above-mentioned conventional techniques, has sufficient holding force without binding the anchor bolt to the foundation rising lateral rebar, and does not cause misalignment of the anchor bolt, which is simple. It is an object of the present invention to provide an anchor bolt holder capable of ensuring the verticality of the anchor bolt and finely adjusting the anchor bolt in the longitudinal direction.

前記課題を解決するために、請求項1に記載の発明は、基礎コンクリートを打設するときに型枠に着脱可能に取り付けられ、コンクリート内に埋設されるアンカーボルトを、垂直性を保って保持するのに用いられるアンカーボルト保持具であって、相対面する方向へ所定間隔で配置された第1の平板部と第2の平板部を有し、両平板部の一側縁が連結板部で連結された断面略コ字状の本体を具え、この本体は、第1の平板部が第2の平板部より長さが長く形成されているとともに、その長さ方向の先端縁に第2の平板部側に略直角に折り曲げられた端板部を有し、該端板部と第2の平板部の先端との間に型枠の上部が挿し込まれる開口部が形成されており、前記端板部には前記開口部に挿し込まれる型枠を押さえて固定する第1の固定部材が設けられ、前記第1の平板部と第2の平板部の相対応する部分にはアンカーボルトが挿通可能な大きさの同径の丸穴が同心状に穿設され、前記連結板部に前記丸穴に挿通されるアンカーボルトを押さえて固定する第2の固定部材が設けられ、前記第1の平板部における前記開口部と対応する位置にはアンカーボルトの径芯を確認するための芯確認用開口が穿設されていることを特徴とする。 In order to solve the above-mentioned problems, the invention according to claim 1 holds an anchor bolt that is detachably attached to a formwork and is embedded in concrete when pouring a foundation concrete, while maintaining the verticality. An anchor bolt retainer used to do this, comprising a first flat plate portion and a second flat plate portion which are arranged at a predetermined interval in a facing direction, and one side edge of both flat plate portions is a connecting plate portion. And a first flat plate portion having a length longer than that of the second flat plate portion. Has an end plate part that is bent at a substantially right angle on the flat plate part side, and an opening is formed between the end plate part and the tip of the second flat plate part, into which the upper part of the mold is inserted. The end plate portion is provided with a first fixing member for pressing and fixing a mold inserted in the opening, and anchor bolts are provided at corresponding portions of the first flat plate portion and the second flat plate portion. A circular hole having the same diameter as the size of the circular hole that can be inserted therethrough is concentrically formed, and a second fixing member for pressing and fixing the anchor bolt inserted into the circular hole is provided in the connecting plate portion. A core confirmation opening for confirming the radial center of the anchor bolt is formed at a position corresponding to the opening in the flat plate portion of No. 1.

請求項2に記載の発明は、請求項1において、前記芯確認用開口は、方形状に設けられ、丸穴に挿入されるアンカーボルトの径と対応する芯であることを表わす縁辺が段階状に形成されている。 According to a second aspect of the present invention, in the first aspect, the lead confirmation opening is provided in a rectangular shape, and the edge indicating that the lead corresponds to the diameter of the anchor bolt inserted into the round hole is stepped. Is formed in.

請求項3に記載の発明は、請求項2において、前記第1の平板部の表面であって、芯確認用開口の段階状に形成されている縁辺と、該縁辺と丸穴においてアンカーボルトの径芯とを結ぶ線上にその径を表示する刻印が施されている。 According to a third aspect of the present invention, in the second aspect, the edge of the anchor plate is formed on the surface of the first flat plate portion in a stepwise manner of the opening for core confirmation, A marking is displayed on the line connecting the diameter core to indicate the diameter.

請求項4に記載の発明は、請求項1ないし3のいずれかにおいて、前記丸穴は、複数の径のアンカーボルトに対応が可能なような大きさの径に形成された真円形である。 According to a fourth aspect of the present invention, in any one of the first to third aspects, the round hole is a true circle having a diameter large enough to accommodate anchor bolts having a plurality of diameters.

この発明は、前記のようであって、請求項1に記載の発明によれば、相対面する方向へ所定間隔で配置された第1の平板部と第2の平板部を有し、両平板部の一側縁が連結板部で連結された断面略コ字状の本体を具え、この本体は、第1の平板部が第2の平板部より長さが長く形成されているとともに、その長さ方向の先端縁に第2の平板部側に略直角に折り曲げられた端板部を有し、該端板部と第2の平板部の先端との間に型枠の上部が挿し込まれる開口部が形成されており、前記端板部には前記開口部に挿し込まれる型枠を押さえて固定する第1の固定部材が設けられ、前記第1の平板部と第2の平板部の相対応する部分にはアンカーボルトが挿通可能な大きさの同径の丸穴が同心状に穿設され、前記連結板部に前記丸穴に挿通されるアンカーボルトを押さえて固定する第2の固定部材が設けられ、前記第1の平板部における前記開口部と対応する位置にはアンカーボルトの径芯を確認するための芯確認用開口が穿設されているので、保持具を型枠の所定位置に設置し、かつ丸穴にアンカーボルトを挿入するという簡易な操作により、アンカーボルトの芯を確認してその垂直性を確保することができ、アンカーボルトを所定位置に設置することができるのに加え、基礎の幅方向が決まり、かつ基礎長手方向のアンカーボルトの微調整も行うことができるという効果がある。また、設置に際してはアンカーボルトを基礎立ち上り横鉄筋に結束しなくともよく、それでも十分な固定力を有し、アンカーボルト芯位置を芯ズレが生ずることなく容易に決めることができるので、作業効率も向上する。また、保持した後はアンカーボルトの高さ調整だけの操作なので垂直精度が高くなる等の効果もある。 According to the invention described in claim 1, the present invention has the first flat plate portion and the second flat plate portion arranged at a predetermined interval in the facing direction, and both flat plates are provided. A main body having a substantially U-shaped cross section, one side edge of which is connected by a connecting plate portion, wherein the main plate is formed such that the first flat plate portion is longer than the second flat plate portion, and The end edge portion in the length direction has an end plate portion that is bent at a substantially right angle to the second flat plate portion side, and the upper part of the mold is inserted between the end plate portion and the tip end of the second flat plate portion. A first fixing member for pressing and fixing a mold inserted in the opening is provided in the end plate portion, and the first flat plate portion and the second flat plate portion are provided. A circular hole of the same diameter having a size through which the anchor bolt can be inserted is concentrically formed in a portion corresponding to each other, and the anchor bolt inserted into the circular hole is pressed and fixed to the connecting plate portion. Fixing member is provided, and a core confirmation opening for confirming the radial center of the anchor bolt is formed at a position corresponding to the opening in the first flat plate portion. It is possible to check the core of the anchor bolt and ensure its verticality by installing the anchor bolt in a predetermined position and inserting the anchor bolt into the round hole. In addition to that, the width direction of the foundation is determined, and fine adjustment of the anchor bolt in the longitudinal direction of the foundation can be performed. Also, at the time of installation, it is not necessary to bind the anchor bolts to the foundation standing horizontal rebars, and still have sufficient fixing force, and the anchor bolt core position can be easily determined without causing core misalignment, so work efficiency is also improved. improves. Further, since the operation is performed only by adjusting the height of the anchor bolt after the holding, there is an effect that the vertical accuracy is increased.

請求項2に記載の発明によれば、芯確認用開口の縁辺を段階状に形成しているため、径の異なる複数のアンカーボルトの芯位置確認にも対応することができる。 According to the second aspect of the present invention, since the edge of the lead confirmation opening is formed stepwise, it is possible to confirm the lead position of a plurality of anchor bolts having different diameters.

請求項3に記載の発明によれば、アンカーボルト径に対応した刻印に基づきアンカーボルトの芯位置確認をスムーズに行うことができる。 According to the invention described in claim 3, the core position of the anchor bolt can be confirmed smoothly based on the marking corresponding to the diameter of the anchor bolt.

請求項4に記載の発明によれば、丸穴が真円形であるからアンカーボルトの径が異なったものでも適宜対応可能で、その芯を確認することができる。 According to the invention described in claim 4, since the round hole is a perfect circle, it is possible to appropriately cope with anchor bolts having different diameters, and the core can be confirmed.

この発明の一実施の形態の、アンカーボルト保持具を型枠に固定して設置した状態を示す斜視図である。It is a perspective view showing the state where the anchor bolt holder of one embodiment of the present invention was fixed and installed in the formwork. 同上の型枠に設置したアンカーボルト保持具の平面図である。It is a top view of the anchor bolt holding fixture installed in the above-mentioned form. 同上の縦断正面図である。It is a vertical front view same as the above. 同上の丸穴にアンカーボルトが挿入された部分の縦断側面図である。It is a vertical side view of a portion in which an anchor bolt is inserted into the same round hole. 使用例を示す図面で、(A)はアンカーボルトの径が16mm、(B)はアンカーボルトの径が12mm、のそれぞれの例を示す。In the drawings showing examples of use, (A) shows an example of an anchor bolt having a diameter of 16 mm, and (B) shows an example of an anchor bolt having a diameter of 12 mm. アンカーボルト保持具を段差のある型枠に設置した例を説明する斜視図である。It is a perspective view explaining the example which installed the anchor bolt holding fixture in the mold with steps.

この発明の一実施の形態を、図面を参照して説明する。 An embodiment of the present invention will be described with reference to the drawings.

図1において、1はアンカーボルト保持具である。このアンカーボルト保持具1は、図2以下にも示すように、全体が鉄板又は鋼板を折り曲げ加工により形成された断面略コ字状の本体2を具えている。本体2は相対面する方向(上下方向)へ所定間隔をおいて配置された平板部3及び平板部4と、該両平板部の一側縁を連結して形成された連結板部5とを有している。平板部3は、平板部4より一側縁に沿った長さが長く形成されているとともに、その長さ方向の先端縁に端板部6が平板部4側に略直角に折り曲げられて形成されている。前記の所定間隔は、この例では30mmとしているが、後述のアンカーボルトを十分保持できるのであればこれ以外の間隔としてもよい。このように平板部3と平板部4の間隔を所定となっているため、従来のような一点保持でなくなり、垂直性の確保が容易となる。 In FIG. 1, 1 is an anchor bolt holder. As shown in FIG. 2 and subsequent figures, the anchor bolt holder 1 includes a main body 2 having a substantially U-shaped cross section, which is formed by bending an iron plate or a steel plate as a whole. The main body 2 includes a flat plate portion 3 and a flat plate portion 4 arranged at predetermined intervals in a direction facing each other (vertical direction), and a connecting plate portion 5 formed by connecting one side edges of the flat plate portions. Have The flat plate portion 3 is formed such that its length along one side edge is longer than that of the flat plate portion 4, and the end plate portion 6 is bent at a substantially right angle to the flat plate portion 4 side at the tip edge in the length direction. Has been done. Although the predetermined interval is 30 mm in this example, other intervals may be used as long as the anchor bolts described later can be sufficiently held. Since the distance between the flat plate portion 3 and the flat plate portion 4 is predetermined as described above, it is not necessary to hold one point as in the conventional case, and it is easy to secure verticality.

そして端板部6と平板部4の先端との間に型枠Aの上部が挿し込まれる開口部7が形成されている。型枠Aは、基礎コンクリートを構築するために間隔をおいて一対設置されるが、この例では同高となっていている。そして、その一方の型枠Aにアンカーボルト保持具1が設置されている。つまり、従来の例のように両型枠間に設置するのではなく、片方の型枠に設置する。そのため両型枠が同高でない高さの異なる型枠にも対応が可能となっている。 An opening 7 into which the upper part of the form A is inserted is formed between the end plate 6 and the tip of the flat plate 4. A pair of molds A are installed at intervals to construct the basic concrete, but they are at the same height in this example. The anchor bolt holder 1 is installed on the one mold A. That is, it is not installed between the two molds as in the conventional example, but is installed on one mold. Therefore, it is possible to support molds of different heights where both molds are not the same height.

端板部6には開口部7に挿し込まれる型枠Aを押さえて固定する固定部材としての蝶ネジ11が、該端板部に設けたネジ穴8に螺合して取り付けられている。蝶ネジ11は、その先端が型枠Aの一方の側面(外側面)に当接するようになっており、手で回すと、型枠Aは蝶ネジ11の先端と本体型枠保持部である平板部4の開口部側先端縁との間で挟まれて圧接されて保持される。蝶ネジ11は軽い力で回せるようネジ径をここでは8mmとしている。型枠Aの保持部幅(開口部7の幅)は50mmと45mmの二つのタイプがあり、それぞれの幅に保持できるようになっている。 A thumbscrew 11 as a fixing member for pressing and fixing the form A inserted into the opening 7 is attached to the end plate 6 by screwing into a screw hole 8 provided in the end plate. The tip of the thumbscrew 11 comes into contact with one side surface (outer side surface) of the form A, and when turned by hand, the form A is the tip of the thumb screw 11 and the main body form holder. The flat plate portion 4 is sandwiched between the opening side end edge and is pressed and held. The thumb screw 11 has a screw diameter of 8 mm here so that it can be rotated with a light force. There are two types of holding widths of the mold A (width of the opening 7) of 50 mm and 45 mm, which can be held in respective widths.

本体2の平板部3及び平板部4の、蝶ネジ11と反対側の端部における相対応する部分にはアンカーボルトB,B´が挿通可能な大きさの真円形の同径丸穴12,13が同心状に穿設されている。また、連結板部5には丸穴12,13に挿通されるアンカーボルトB,B´を押さえて固定する固定部材としての蝶ネジ14が、連結板部5に設けたネジ穴9に螺合して設けられている。丸穴12,13は、12mm径、16mm径のいずれのアンカーボルトB,B´にも使用できるように内径が17mmの穴となっている。アンカーボルトB,B´を丸穴12,13に挿入後、蝶ネジ14で締めると該ネジの先端によってアンカーボルトB,B´は押され、該穴の真円形を形成する内周縁によってアンカーボルト中心位置で保持される。本体2の平板部3と平板部4間の間隔(コ次状形状の高さ)は前記したように30mmであり、アンカーボルトB,B´をしっかり固定でき、かつ基礎コンクリートの仕上げ面に影響を与えない最小限の高さとしている。 In the corresponding portions of the flat plate portion 3 and the flat plate portion 4 of the main body 2 at the ends on the opposite side of the thumbscrews 11, anchor bolts B, B'having a circular hole 12 having the same diameter and having a size capable of inserting the anchor bolts B, B'. 13 are concentrically provided. Further, a thumbscrew 14 as a fixing member for pressing and fixing the anchor bolts B and B'inserted in the round holes 12 and 13 in the connecting plate portion 5 is screwed into the screw holes 9 provided in the connecting plate portion 5. Is provided. The circular holes 12 and 13 are holes having an inner diameter of 17 mm so that they can be used for the anchor bolts B and B'having a diameter of 12 mm and a diameter of 16 mm. When the anchor bolts B and B'are inserted into the round holes 12 and 13 and then tightened with the thumbscrews 14, the anchor bolts B and B'are pushed by the tips of the screws, and the anchor bolts are pressed by the inner peripheral edge of the holes forming a perfect circle. It is held in the center position. The space between the flat plate portion 3 and the flat plate portion 4 of the main body 2 (the height of the conical shape) is 30 mm as described above, the anchor bolts B and B'can be firmly fixed, and the finish surface of the basic concrete is affected. The minimum height is not given.

平板部3の型枠Aの枠面と対応する部位にはアンカーボルト芯確認用開口15が貫通して穿設されている。この芯確認用開口15は、平板部3の長さ方向を向いた二段形の長方形を呈し、段差付きの幅大の縁辺が径12mmのアンカーボルトB´の芯を、幅小の縁辺が径16mmのアンカーボルトBの芯を、それぞれ位置合わせをする際に確認することができるようになっている。そのために芯確認用開口15の前記縁辺近くには目印としてのM12、M16という文字が表示されている。つまり、M12は径12mmのアンカーボルトB´の径芯を確認するときの目印であり、M16は径16mmのアンカーボルトBの径芯を確認するときの目印である。17,18は芯確認用開口15の目印M12、M16を示す各縁辺とアンカーボルト挿通用の丸穴12,13のボルト中心を結んで示すための丸い凸部からなる刻印(位置決め部)を示す。そのため、合わせたいずれかの刻印17,18を結ぶ線上の丸穴12,13の直径の交点が挿入する、それぞれ径の異なるアンカーボルトの芯位置であると確認することが可能になっている。 An anchor bolt core confirmation opening 15 is formed through a portion of the flat plate portion 3 corresponding to the frame surface of the form A. The core confirmation opening 15 has a two-stage rectangular shape that is oriented in the length direction of the flat plate portion 3, and has a large width side edge with a core of an anchor bolt B′ having a diameter of 12 mm and a small width edge side. The cores of the anchor bolts B having a diameter of 16 mm can be confirmed when they are aligned. Therefore, the characters M12 and M16 as marks are displayed near the edge of the lead confirmation opening 15. That is, M12 is a mark for confirming the diameter core of the anchor bolt B'having a diameter of 12 mm, and M16 is a mark for confirming the diameter core of the anchor bolt B having a diameter of 16 mm. Reference numerals 17 and 18 denote markings (positioning portions) formed of round convex portions for connecting the respective margins indicating the marks M12 and M16 of the core confirmation opening 15 and the bolt centers of the round holes 12 and 13 for inserting the anchor bolts. .. Therefore, it is possible to confirm that the intersections of the diameters of the round holes 12 and 13 on the line connecting the combined markings 17 and 18 are the core positions of the anchor bolts having different diameters to be inserted.

つまり、アンカーボルト保持具1を設置する際、アンカーボルト12mm又は16mm径芯がどこにあるのか芯確認用開口15より確認することができる。また、芯確認用開口15の近くには前記目印M12、M16を示す12mm用と16mm用の位置決め用目印20,21が表示されており、この目印20,21を型枠Aの枠面に設けた墨出しした印に合わせればアンカーボルトB,B´をその芯に合った所定の位置に設置することができることになる。 That is, when the anchor bolt holder 1 is installed, it is possible to confirm where the anchor bolt 12 mm or 16 mm diameter core is located through the core confirmation opening 15. In addition, positioning marks 20 and 21 for 12 mm and 16 mm indicating the marks M12 and M16 are displayed near the core confirmation opening 15, and the marks 20 and 21 are provided on the frame surface of the form A. The anchor bolts B, B'can be installed at a predetermined position that matches the core of the anchor bolts B, B'according to the stamped mark.

なお、アンカーボルト保持具1における丸穴12,13の位置は、両型枠A,A間のセンター位置となるように予め設計されている。そのためアンカーボルト保持具1を一方の型枠Aに取り付けて設置すると、アンカーボルトB,B´は基礎幅の中心に設置されることになる。そのため基礎幅方向のアンカーボルト芯は、これで決まる。 The positions of the round holes 12 and 13 in the anchor bolt holder 1 are designed in advance so as to be the center position between the two molds A and A. Therefore, when the anchor bolt holder 1 is attached to one of the molds A and installed, the anchor bolts B and B'are installed in the center of the foundation width. Therefore, the anchor bolt core in the foundation width direction is determined by this.

前記においては、生コンクリート打設時等での多少の振動でも精度を保てるよう、本体2の鉄板等の厚みを3.2mmとしている。また、両型枠A,Aの高さに差が生じても取り付けられるよう片側型枠支持とした。また、本体2は、製造コストを抑えるため1枚の鉄板等を折り曲げ加工して成形し、かつ保管時にかさばらない形状としている。 In the above description, the thickness of the iron plate or the like of the main body 2 is set to 3.2 mm so that the accuracy can be maintained even with some vibrations when pouring fresh concrete. Further, the one-sided frame support is used so that the two molds A and A can be mounted even if there is a difference in height. Further, the main body 2 is formed by bending a single iron plate or the like to reduce the manufacturing cost, and has a shape that is not bulky during storage.

構成各部の寸法について参考に説明すると、本体2の平板部3の長手方向の長さX1は、152mm、平板部3の短手方向の長さYは、40mm、平板部4の長手方向の長さX2は、95mm、平板部3と平板部4間の長さZは、30mmとなっている(図2,3)。 The length X1 of the flat plate portion 3 of the main body 2 in the longitudinal direction is 152 mm, the length Y of the flat plate portion 3 in the lateral direction is 40 mm, and the length of the flat plate portion 4 in the longitudinal direction is 40 mm. The length X2 is 95 mm, and the length Z between the flat plate portions 3 and 4 is 30 mm (FIGS. 2 and 3).

なお、図示してはいないが、本体2の平板部3において蝶ネジ11の軸芯の延長上の端縁にアンカーボルトB,B´の芯を合わせる際の目印となるV字状の小切込み溝をVの谷部が軸線上に位置するように設けてもよい。同様に、平板部3において蝶ネジ14の軸芯の延長上の端縁にアンカーボルトB,B´の芯を合わせる際の目印となるV字状の小切込み溝をVの谷部が軸線上に位置するように設けてもよい。このような切込み溝を設けておけば、より効果的にアンカーボルト芯の位置を確認することができ、作業性が高まる。 Although not shown, a V-shaped small cut which serves as a mark when aligning the cores of the anchor bolts B and B′ with the extended edge of the axial center of the thumb screw 11 in the flat plate portion 3 of the main body 2 The groove may be provided so that the valley portion of V is located on the axis. Similarly, in the flat plate portion 3, a V-shaped small cut groove serving as a mark when aligning the cores of the anchor bolts B and B′ with the extended edge of the axial center of the thumbscrew 14 is formed so that the valley of V is on the axial line. You may provide so that it may be located. By providing such a cut groove, the position of the anchor bolt core can be more effectively confirmed, and the workability is improved.

次に、前記実施の形態の使用法(作用)について説明する。
アンカーボルト保持具1を型枠Aに取り付けるには、まず、事前に施工図面より設置するアンカーボルトB,B´の径(M16,M12)の位置を確認し、型枠Aの枠面に巻尺等を使用して赤鉛筆等で印23又は24を付ける(図5)。しかる後、その印23又は24の位置を芯確認用開口15より確認し、例えば印23又は24の縁辺にM16又はM12の目印20又は21の縁辺を合わせて、型枠Aの内側面に保持具1の平板部4の開口部7側の端縁が当接し、かつ型枠Aの上面に保持具1の平板部3の下面が当接した状態で蝶ネジ11をその先端が型枠の外側面に当接するように締付け、固定する。これで保持具1の型枠Aへの設置が終了する。
Next, the usage (action) of the above embodiment will be described.
In order to attach the anchor bolt holder 1 to the form A, first check the positions of the diameters (M16, M12) of the anchor bolts B, B'installed from the construction drawing in advance, and measure with a tape measure on the frame surface of the form A. Mark 23 or 24 with a red pencil or the like using such a tool (FIG. 5). After that, the position of the mark 23 or 24 is confirmed through the core confirmation opening 15, and, for example, the edge of the mark 23 or 24 is aligned with the edge of the mark 20 or 21 of M16 or M12 and held on the inner surface of the form A. With the end edge of the flat plate portion 4 of the tool 1 on the opening 7 side abutting and the lower surface of the flat plate portion 3 of the holder 1 abutting on the upper surface of the mold A, the tip of the thumbscrew 11 is Tighten and fix it so that it contacts the outer surface. This completes the installation of the holder 1 on the form A.

次に、アンカーボルトB,B´を保持具1の本体2の丸穴12,13に挿入し、同じようにして蝶ネジ14で締め付けて固定することとなるが、ここではアンカーボルトB,B´はその径の違いにより基礎長手方向の位置が微調整される。つまり、M16のアンカーボルトBではさほどではないが、M12のアンカーボルトB´ではアンカーボルトBの中心より4mmほど基礎長手方向へ動いた位置で固定されることになる。いずれにしても、これでアンカーボルトB,B´は垂直性を確保して保持具1で保持された状態になる。 Next, the anchor bolts B and B'will be inserted into the round holes 12 and 13 of the main body 2 of the holder 1 and similarly tightened with the thumbscrews 14 to be fixed. The position of ′ in the longitudinal direction of the foundation is finely adjusted due to the difference in diameter. That is, although not so much with the anchor bolt B of M16, the anchor bolt B′ of M12 is fixed at a position moved by 4 mm from the center of the anchor bolt B in the base longitudinal direction. In any case, the anchor bolts B and B′ are in a state of being held by the holder 1 while ensuring verticality.

前記の説明ではアンカーボルト保持具1を型枠Aに設置した後に該保持具の丸穴にアンカーボルトを挿入したが、これとは逆にアンカーボルト保持具1の丸穴にアンカーボルトを挿入した後にアンカーボルト保持具1を型枠Aに設置してもよい。 In the above description, the anchor bolt holder 1 was installed on the mold A and then the anchor bolt was inserted into the round hole of the holder, but conversely, the anchor bolt was inserted into the round hole of the anchor bolt holder 1. The anchor bolt holder 1 may be installed in the form A later.

次に、図5に基づき、径の異なるアンカーボルトB,B´を、垂直性を確保して保持具で保持することについて説明する。アンカーボルトBの径が16mm(M16)である場合、同図(A)に示すように型枠Aの枠面に付けられた印23の縁辺にM16の目印20の縁辺を合わせて、型枠Aの内側面に保持具1の平板部4の開口部7側の端縁が当接し、かつ型枠Aの上面に保持具1の平板部3の下面が当接した状態で蝶ネジ11をその先端が型枠の外側面に当接するように締付け、固定する一方、16mm径のアンカーボルトBを保持具1の本体2の丸穴12,13へ、その下方から挿入し、同じようにして蝶ネジ14で仮締めする。そしてさらに蝶ネジ14で締め付けると、アンカーボルトBは丸穴12,13内で蝶ネジ14に押され、基礎長手方向の位置の微調整も行うことができて、その芯位置で固定される。これで16mm径のアンカーボルトBの基礎幅方向の芯及び基礎長手方向の芯が同時に決まることとなる。 Next, with reference to FIG. 5, it will be described how the anchor bolts B and B′ having different diameters are held by the holder while ensuring the verticality. When the diameter of the anchor bolt B is 16 mm (M16), the edge of the mark 20 of M16 is aligned with the edge of the mark 23 attached to the frame surface of the frame A as shown in FIG. With the inner edge of A contacting the edge of the flat plate portion 4 of the holder 1 on the side of the opening 7 and the upper surface of the form A contacting the lower surface of the flat plate portion 3 of the holder 1, attach the thumbscrew 11. The anchor bolt B having a diameter of 16 mm is inserted into the round holes 12 and 13 of the main body 2 of the holder 1 from the lower side and fixed in the same manner while being tightened and fixed so that its tip comes into contact with the outer side surface of the mold. Temporarily tighten the thumbscrew 14. When the thumbscrew 14 is further tightened, the anchor bolt B is pushed by the thumbscrew 14 in the round holes 12 and 13, and the position in the longitudinal direction of the foundation can be finely adjusted and fixed at the core position. As a result, the core in the base width direction and the core in the base longitudinal direction of the anchor bolt B having a diameter of 16 mm are determined at the same time.

アンカーボルトB´の径が12mm(M12)である場合、同図(B)に示すように型枠Aの枠面に付けられた印24の縁辺にM12の目印21の縁辺を合わせて、型枠Aの内側面に保持具1の平板部4の開口部7側の端縁が当接し、かつ型枠Aの上面に保持具1の平板部3の下面が当接した状態で蝶ネジ11をその先端が型枠の外側面に当接するように締付け、固定する一方、12mm径のアンカーボルトB´を保持具1の本体2の丸穴12,13へ、その下方から挿入し、同じようにして蝶ネジ14で仮締めする。そしてさらに蝶ネジ14で締め付けると、アンカーボルトB´は丸穴12,13内で蝶ネジ14に押され、基礎長手方向の位置の微調整も行うことができることとなるが、その調整量は径が小さい分16mm径のアンカーボルトBより大きくとられ、その芯位置で固定される。これで12mm径のアンカーボルトB´の基礎幅方向の芯及び基礎長手方向の芯が同時に決まることとなる。 When the diameter of the anchor bolt B′ is 12 mm (M12), the edge of the mark 21 of M12 is aligned with the edge of the mark 24 attached to the frame surface of the mold A as shown in FIG. With the inner edge of the frame A being in contact with the edge of the flat plate portion 4 of the holder 1 on the side of the opening 7 and the upper surface of the form A being in contact with the lower surface of the flat plate portion 3 of the holder 1, a thumbscrew 11 While tightening and fixing the tip so that its tip comes into contact with the outer surface of the mold, insert the anchor bolt B′ having a diameter of 12 mm into the round holes 12 and 13 of the main body 2 of the holder 1 from below, and similarly. Then, temporarily tighten the thumbscrew 14. Then, when the thumbscrew 14 is further tightened, the anchor bolt B′ is pushed by the thumbscrew 14 in the round holes 12 and 13, and the position in the longitudinal direction of the foundation can be finely adjusted. Is smaller than the anchor bolt B having a diameter of 16 mm, and is fixed at the core position. As a result, the core in the base width direction and the core in the base longitudinal direction of the anchor bolt B′ having a diameter of 12 mm are determined at the same time.

なお、この実施の形態においては、基礎幅方向のアンカーボルトの芯は、丸穴12,13穴の位置が固定されているため、型枠Aの枠面に印の付けられた位置に前記アンカーボルト保持具1を設置し、蝶ネジ11で固定すれば決まる。 In addition, in this embodiment, since the positions of the round holes 12 and 13 are fixed in the core of the anchor bolt in the foundation width direction, the anchor is located at the position marked on the frame surface of the form A. It is determined by installing the bolt holder 1 and fixing it with the thumbscrew 11.

前記のようにアンカーボルトB又はB´を仮設置した後、図示しないレベル測定器によるアンカーボルトB又はB´の高さ調整を行なうために蝶ネジ14をかるく緩め、高さ調整を行った後、本締めする。しかる後、保持具1の設置状況を確認の上、両型枠A間に生コンクリートを打設する。そして、打設が完了し、養生した後、型枠外し、等のこれまでと同様な作業を行うことは従前の通りである。 After temporarily installing the anchor bolt B or B'as described above, loosely loosen the thumbscrew 14 to adjust the height of the anchor bolt B or B'by a level measuring device (not shown), and then perform the height adjustment. , Tighten the book. Then, after confirming the installation status of the holder 1, fresh concrete is placed between the two molds A. Then, after the casting is completed and cured, the formwork is removed, and the same work as before is performed as in the past.

前記のようであって、この実施の形態のアンカーボルト保持具1によれば、アンカーボルトB又はB´を丸穴12,13に挿入して蝶ネジ11,14で締め付けることによって簡易にアンカーボルトB又はB´の垂直性を保持することができる。しかも、径の異なるアンカーボルトB又はB´を丸穴12,13に挿入して蝶ネジ14で締めればアンカーボルトB又はB´は丸穴12,13内で基礎幅方向及び長手方向に微調整されてその芯が決まる。また、予め基礎型枠Aの枠面に墨出したアンカーボルト中心線の印23又は24をアンカーボルト芯確認用開口15で、二つのアンカーボルト芯を容易に確認することができる。 As described above, according to the anchor bolt holder 1 of this embodiment, the anchor bolt B or B′ is simply inserted into the round holes 12 and 13 and tightened with the thumb screws 11 and 14. The perpendicularity of B or B'can be maintained. Moreover, if anchor bolts B or B'having different diameters are inserted into the round holes 12 and 13 and tightened with the thumbscrews 14, the anchor bolts B or B'are finely adjusted in the base width direction and the longitudinal direction within the round holes 12 and 13. It is done and the core is decided. In addition, the anchor bolt center line mark 23 or 24 that is previously marked on the frame surface of the base form A can be easily confirmed in the anchor bolt core confirmation opening 15.

前記実施の形態では同高の一対の型枠のうちその一方の型枠Aにアンカーボルト保持具1を設置した例を示した。これは両側に型枠があると、支持具を両型枠に跨った設置ができないことがある。そのため、片側にのみ型枠が設置された状態でアンカーボルトを立設するのに好適なものである。図6も同様の例ではあるが、この例は他方の型枠A´が一方の型枠Aよりも高さが高い場合でもその設置が可能である使用例を示している。なお、この例では型枠A´を型枠Aよりも高さを高くしたが、逆に型枠A´を型枠Aより低くしたものでもよい。 In the above-described embodiment, an example is shown in which the anchor bolt holder 1 is installed on one of the pair of molds of the same height. If there are molds on both sides, it may not be possible to install the support tool across both molds. Therefore, it is suitable to stand the anchor bolt in a state where the mold is installed only on one side. Although FIG. 6 is also a similar example, this example shows a usage example in which the other form A'can be installed even if the height is higher than the one form A. In this example, the form A'has a height higher than that of the form A, but conversely, the form A'may be lower than the form A.

以上のように、この発明の実施の形態で示した本体の形状等は、あくまでも一例を示したにすぎず、同じ作用効果のあるものであれば図示した以外のものとしてもよいことは言うまでもない。 As described above, the shape and the like of the main body shown in the embodiment of the present invention are merely examples, and it goes without saying that other shapes may be used as long as they have the same effect. ..

1 アンカーボルト保持具
2 本体
3 平板部(第1の平板部)
4 平板部(第2の平板部)
5 連結板部
6 端板部
7 開口部
8,9 ネジ穴
11 蝶ネジ(固定部材)
12,13 丸穴
14 蝶ネジ(固定部材)
15 芯確認用開口
17,18 刻印(位置決め部)
20,21 位置決め部
A,A´ 型枠
B,B´ アンカーボルト
1 Anchor bolt holder 2 Main body 3 Flat plate part (first flat plate part)
4 Flat plate part (second flat plate part)
5 Connection plate part 6 End plate part 7 Opening part 8, 9 Screw hole 11 Thumbscrew (fixing member)
12, 13 Round hole 14 Thumbscrew (fixing member)
15 core confirmation opening 17,18 engraved (positioning part)
20,21 Positioning part A,A' Formwork B,B' Anchor bolt

Claims (4)

基礎コンクリートを打設するときに型枠に着脱可能に取り付けられ、コンクリート内に埋設されるアンカーボルトを、垂直性を保って保持するのに用いられるアンカーボルト保持具であって、
相対面する方向へ所定間隔で配置された第1の平板部と第2の平板部を有し、両平板部の一側縁が連結板部で連結された断面略コ字状の本体を具え、
この本体は、第1の平板部が第2の平板部より長さが長く形成されているとともに、その長さ方向の先端縁に第2の平板部側に略直角に折り曲げられた端板部を有し、該端板部と第2の平板部の先端との間に型枠の上部が挿し込まれる開口部が形成されており、
前記端板部には前記開口部に挿し込まれる型枠を押さえて固定する第1の固定部材が設けられ、前記第1の平板部と第2の平板部の相対応する部分にはアンカーボルトが挿通可能な大きさの同径の丸穴が同心状に穿設され、前記連結板部に前記丸穴に挿通されるアンカーボルトを押さえて固定する第2の固定部材が設けられ、前記第1の平板部における前記開口部と対応する位置にはアンカーボルトの径芯を確認するための芯確認用開口が穿設されていることを特徴とするアンカーボルト保持具。
An anchor bolt retainer that is detachably attached to a formwork when pouring a foundation concrete and is used to retain an anchor bolt embedded in concrete while maintaining verticality,
It has a main body having a first flat plate portion and a second flat plate portion which are arranged at a predetermined interval in a direction facing each other, and one side edge of both flat plate portions are connected by a connecting plate portion and having a substantially U-shaped cross section. ,
In this main body, the first flat plate portion is formed to have a length longer than that of the second flat plate portion, and the end plate portion is bent at substantially the right angle toward the second flat plate portion at the tip edge in the length direction. And an opening is formed between the end plate and the tip of the second flat plate to insert the upper part of the mold.
The end plate portion is provided with a first fixing member for pressing and fixing a mold inserted in the opening, and anchor bolts are provided at corresponding portions of the first flat plate portion and the second flat plate portion. A circular hole having the same diameter as the size of the circular hole that can be inserted therethrough is concentrically formed, and a second fixing member for pressing and fixing the anchor bolt inserted into the circular hole is provided in the connecting plate portion. An anchor bolt holder characterized in that a core confirmation opening for confirming the radial center of the anchor bolt is bored at a position corresponding to the opening in the flat plate portion of 1.
前記芯確認用開口は、方形状に設けられ、丸穴に挿入されるアンカーボルトの径と対応する芯であることを表わす縁辺が段階状に形成されている請求項1に記載のアンカーボルト保持具。 The anchor bolt holding according to claim 1, wherein the lead confirming opening is provided in a rectangular shape, and an edge indicating that the lead corresponds to the diameter of the anchor bolt inserted into the round hole is formed stepwise. Ingredient 前記第1の平板部の表面であって、芯確認用開口の段階状に形成されている縁辺と、該縁辺と丸穴においてアンカーボルトの径芯とを結ぶ線上にその径を表示する刻印が施されている請求項2に記載のアンカーボルト保持具。 On the surface of the first flat plate portion, there is an engraved mark for displaying the diameter on the line connecting the edge formed in a stepwise manner of the core confirmation opening and the edge and the diameter core of the anchor bolt in the round hole. The anchor bolt holder according to claim 2, which is provided. 前記丸穴は、複数の径のアンカーボルトに対応が可能なような大きさの径に形成された真円形である請求項1ないし3のいずれかに記載のアンカーボルト保持具。 The anchor bolt holder according to any one of claims 1 to 3, wherein the round hole is a true circle having a diameter that is large enough to accommodate anchor bolts having a plurality of diameters.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05287754A (en) * 1992-04-07 1993-11-02 Toshio Motosawa Anchor bolt positioning tool
JPH0941396A (en) * 1995-08-01 1997-02-10 Puraimarii Kk Upper-half section shape retaining device of exposed type panel for forming concrete foundation of building, etc.
JPH11117319A (en) * 1997-10-08 1999-04-27 Shoji Matsuzawa Spreader tool for base concrete form
JP2001115463A (en) * 1999-10-15 2001-04-24 Daiwa House Ind Co Ltd Foundation execution method, and metal fitting used therefor
JP2004019313A (en) * 2002-06-18 2004-01-22 Kanai:Kk Support for anchor bolt
JP2005315021A (en) * 2004-04-30 2005-11-10 Matsuzawa Shoji Anchor bolt supporting device for foundation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05287754A (en) * 1992-04-07 1993-11-02 Toshio Motosawa Anchor bolt positioning tool
JPH0941396A (en) * 1995-08-01 1997-02-10 Puraimarii Kk Upper-half section shape retaining device of exposed type panel for forming concrete foundation of building, etc.
JPH11117319A (en) * 1997-10-08 1999-04-27 Shoji Matsuzawa Spreader tool for base concrete form
JP2001115463A (en) * 1999-10-15 2001-04-24 Daiwa House Ind Co Ltd Foundation execution method, and metal fitting used therefor
JP2004019313A (en) * 2002-06-18 2004-01-22 Kanai:Kk Support for anchor bolt
JP2005315021A (en) * 2004-04-30 2005-11-10 Matsuzawa Shoji Anchor bolt supporting device for foundation

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