JP2001311223A - Anchor for digging in concrete - Google Patents

Anchor for digging in concrete

Info

Publication number
JP2001311223A
JP2001311223A JP2000133057A JP2000133057A JP2001311223A JP 2001311223 A JP2001311223 A JP 2001311223A JP 2000133057 A JP2000133057 A JP 2000133057A JP 2000133057 A JP2000133057 A JP 2000133057A JP 2001311223 A JP2001311223 A JP 2001311223A
Authority
JP
Japan
Prior art keywords
cylindrical body
hole
screw hole
anchor
bolt
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.)
Pending
Application number
JP2000133057A
Other languages
Japanese (ja)
Inventor
Hidenaga Kimura
英長 木村
Akira Sakashita
昭 坂下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TORISUMI CO Ltd
Original Assignee
TORISUMI CO Ltd
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 TORISUMI CO Ltd filed Critical TORISUMI CO Ltd
Priority to JP2000133057A priority Critical patent/JP2001311223A/en
Publication of JP2001311223A publication Critical patent/JP2001311223A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To reduce the inside diameter of a through-hole to be bored to a form board as much as possible by using a butterfly screw having a diameter smaller than a bolt when an anchor is fixed onto the form board. SOLUTION: A tapped hole 21 having the diameter smaller than a bolt screw hole 15 for the anchor 30 made of FRPs is formed at the center of an inner bottom section, and the end section of the butterfly screw 22 inserted into the through-hole 8 of the form board 7 is screwed into the tapped hole 21. Accordingly, the inside diameter of the through-hole 8 bored to the form board 7 can be reduced.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明はコンクリート埋込
用アンカーに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor for embedding concrete.

【0002】[0002]

【従来の技術】コンクリート埋込用アンカーはボルト等
を捻じ込んでコンクリートに支持を取るためのもので、
主として金属製の有底筒状体であって外周面にリブ等の
突起部を形成してコンクリートに回転不能に埋め込まれ
るものである。
2. Description of the Related Art An anchor for embedding concrete is for screwing a bolt or the like to support the concrete.
It is a cylindrical body with a bottom, mainly made of metal, which is formed with projections such as ribs on the outer peripheral surface and is embedded in concrete so that it cannot rotate.

【0003】しかしながら、金属製のアンカーは腐食す
るので耐久性に劣るから、その素材を腐食しない、例え
ばセラミックスなどに代替させている。セラミックスか
らなるアンカーを図9(A),(B)に示す。このセラ
ミックスアンカー14は、有底円筒状体からなる本体1
と円筒状体からなるスリーブ2とを、プラスチックから
なる継手3でねじ合わせて結合し、本体1内には軸線方
向にボルト螺合穴4を形成すると共に、ボルト螺合穴4
の開口側端部には継手3をねじ込む径大のネジ部5を形
成する一方、スリーブ2には継手3をねじ込むネジ部6
を軸線方向に形成してなる。
However, since metal anchors are corroded and have poor durability, the material is not corroded, and is replaced with, for example, ceramics. An anchor made of ceramics is shown in FIGS. The ceramic anchor 14 is a main body 1 made of a cylindrical body having a bottom.
And a sleeve 2 formed of a cylindrical body and screwed together with a joint 3 made of plastic to form a bolt screw hole 4 in the main body 1 in the axial direction.
A thread portion 5 having a large diameter for screwing the joint 3 is formed at the opening side end of the sleeve 2, while a thread portion 6 for screwing the joint 3 is formed on the sleeve 2.
Are formed in the axial direction.

【0004】ボルト螺合穴4は型枠板7に穿設された透
孔8に挿通したボルト9に螺入するものであるが、ネジ
部6はボルト9には螺合しないで単に遊嵌する構造であ
る。継手3は本体1とスリーブ2とが衝接しないように
緩衝部10を有して軸心部にはボルト9を挿通する軸孔
11が穿設されている。本体1の外周面には回り止め用
の平坦面部12が少なくとも直径方向で相対向して形成
されている。
The bolt screw hole 4 is screwed into a bolt 9 inserted through a through hole 8 formed in a form plate 7. It is a structure to do. The joint 3 has a buffering portion 10 so that the main body 1 and the sleeve 2 do not come into contact with each other, and a shaft hole 11 through which a bolt 9 is inserted is formed in the shaft center portion. On the outer peripheral surface of the main body 1, flat surface portions 12 for preventing rotation are formed to face each other at least in the diametric direction.

【0005】本体1とスリーブ2側の型枠板7の片側
に、生コンクリートが打設されてそれが養生し固化され
てコンクリート構造体が形成されると、ボルト9を本体
1から抜いて型枠板7は除去される。コンクリート構造
体に埋め込まれたセラミックスアンカー14には適宜の
支持金具がボルトで連結される。したがって、このボル
トと前記ボルト9とは実質的には同じものが用いられ
る。
[0005] When ready-mixed concrete is cast on one side of the mold plate 7 on the side of the main body 1 and the sleeve 2 and it is cured and solidified to form a concrete structure, the bolt 9 is removed from the main body 1 to remove the mold. The frame plate 7 is removed. Appropriate support fittings are connected to the ceramic anchor 14 embedded in the concrete structure by bolts. Therefore, the bolt and the bolt 9 are substantially the same.

【0006】なお、コンクリート打設時にボルト螺合穴
4及びネジ部6内に生コンクリート(ノロ)が侵入しな
いようにするため、図9(B)に示すように、スリーブ
2と型枠板7との間にシールパッキン13を介在させる
ことがある。シールパッキン13はプラスチックス又は
ゴムからなる台形環状体である。シールパッキン13は
コンクリート構造体の完成後には除去される。
As shown in FIG. 9 (B), the sleeve 2 and the mold plate 7 are provided to prevent the fresh concrete (slag) from entering the bolt screw hole 4 and the screw portion 6 during concrete casting. May be interposed between them. The seal packing 13 is a trapezoidal ring made of plastics or rubber. The seal packing 13 is removed after the completion of the concrete structure.

【0007】また、出願人はFRP樹脂を素材とするア
ンカー(FRPインサート)を開発した。このFRPイ
ンサート20は、図10(A),(B),(C)に示す
ように、軸線方向のボルト螺合穴15を形成した有底円
筒状体16の外周面に複数の環状突起部17が軸線と交
叉する方向で所定の間隔を有して環状に形成され、その
環状突起部17の直径方向で相対向する少なくとも2カ
所に切欠部18が形成された構造である(意匠登録第9
98298号)。
Further, the applicant has developed an anchor (FRP insert) made of FRP resin. As shown in FIGS. 10 (A), (B), and (C), the FRP insert 20 has a plurality of annular projections formed on an outer peripheral surface of a bottomed cylindrical body 16 having an axial bolt screw hole 15 formed therein. 17 is formed in a ring shape at a predetermined interval in a direction intersecting with the axis, and a cutout portion 18 is formed in at least two diametrically opposed portions of the annular projection portion 17 (design registration No. 17). 9
98298).

【0008】このFRPインサート20は、図11に示
すように、前記セラミックスアンカー14と同様に型枠
板7の透孔8に挿通したボルト9にボルト螺合穴15を
螺入して固定するものである。有底円筒状体16と型枠
板7との間には板状環状体のシールパッキン19が前記
と同じく介在させてある。型枠の完成後、型枠板7の有
底円筒状体16側に生コンクリートを打設して養生固化
した後、脱型することにより、シールパッキン19は除
去され、図12に示すように、コンクリート構造体27
に埋め込まれたFRPインサート20に、ワッシャ26
を嵌合したボルト9を介して支持金具28,29を取り
付ける。支持金具28,29には適宜の他の構造体等が
支持される。
As shown in FIG. 11, the FRP insert 20 has a bolt screwing hole 15 screwed into a bolt 9 inserted into the through hole 8 of the form plate 7 similarly to the ceramic anchor 14 and fixed. It is. Between the bottomed cylindrical body 16 and the form plate 7, a plate-shaped annular seal packing 19 is interposed as described above. After the mold is completed, the concrete packing is cast on the bottomed cylindrical body 16 side of the mold plate 7 to cure and solidify, and then the mold is removed, whereby the seal packing 19 is removed, and as shown in FIG. , Concrete structure 27
The washer 26 is inserted into the FRP insert 20 embedded in the
The support fittings 28 and 29 are attached via the bolts 9 fitted with. Other appropriate structures and the like are supported by the support fittings 28 and 29.

【0009】[0009]

【発明が解決しようとする課題】しかしながら、セラミ
ックスアンカー14は焼き物(陶器)であるから、落下
したり、強い振動衝撃が加わると割れたり欠けたりする
欠点がある。また、セラミックスアンカー14は、本体
1とスリーブ2と継手3との部品点数が多くてコスト高
であるのは勿論、型枠板7に装着する前に継手3を本体
1とスリーブ2にねじ込んで全てを一体化して組み付け
ておかなければならないから、ねじ込み作業が多くて手
間が掛かると云う不都合がある。
However, since the ceramic anchor 14 is a pottery (porcelain), there is a disadvantage that the ceramic anchor 14 is cracked or chipped when dropped or subjected to strong vibration and impact. In addition, the ceramic anchor 14 has many parts including the main body 1, the sleeve 2, and the joint 3, and is expensive. Needless to say, the joint 3 is screwed into the main body 1 and the sleeve 2 before being attached to the form plate 7. Since everything must be assembled and assembled, there is a disadvantage that the screwing operation is large and time-consuming.

【0010】また、FRPインサート20はセラミック
スアンカー14と共に、型枠板7に穿設した透孔8がボ
ルト9を挿通するための所定の直径を有するものであ
り、そのボルト9はコンクリート構造体に支持を取るべ
き他の構造物等を考慮して強度が選定された所要径のも
ので、比較的大きな直径の透孔8となる。
Further, the FRP insert 20 has a through hole 8 formed in the form plate 7 having a predetermined diameter for inserting a bolt 9 together with the ceramic anchor 14, and the bolt 9 is attached to a concrete structure. The through hole 8 has a required diameter whose strength is selected in consideration of other structures to be supported and the like, and has a relatively large diameter.

【0011】一方、型枠板7は多種多様のコンクリート
構造体を作成するために、経済性を考慮して転用される
から、透孔8の穿設位置も種々異なってくるため、型枠
板7を長期使用していると盤面が孔8だらけになってく
るのは当然であり、したがって、型枠板7の使用後には
穿設した透孔8を必ず埋め戻す作業を行っている。この
埋め戻し作業は溶接作業を伴い、孔径が大きければ埋め
戻し溶接作業も手間と時間を要し、その数も多いため
に、きわめて繁雑で労力を要すると云う不具合がある。
On the other hand, since the form plate 7 is diverted in consideration of economy in order to produce various types of concrete structures, the positions of the through holes 8 are variously changed. It is natural that the board surface becomes full of holes 8 when the 7 has been used for a long time. Therefore, after the form plate 7 is used, the work of refilling the perforated holes 8 is necessarily performed. This backfilling operation involves a welding operation. If the hole diameter is large, the backfilling welding operation also requires labor and time, and the number of such backfilling operations is extremely complicated and labor-intensive.

【0012】さらに、FRPインサート20そのものの
形状において、コンクリート構造体26との結合性は複
数の環状突起部17にて抜け止めが十分であっても、ボ
ルト9に強い力を掛けて締め付ける必要がある場合に、
切欠部18では強度が足りないことが想定されるため
に、回り止め性能を一層向上させることが望ましい。
Further, in the shape of the FRP insert 20 itself, even if the connection with the concrete structure 26 is sufficient to prevent the plurality of annular projections 17 from coming off, it is necessary to apply a strong force to the bolt 9 to tighten it. In some cases,
Since it is assumed that the notch 18 has insufficient strength, it is desirable to further improve the detent performance.

【0013】そこで、この発明はFRPインサート20
を固定する型枠板7に穿設すべき透孔8の直径を、可能
な限り小さくして埋め戻し作業の簡便迅速且つ容易化を
図るとともに、FRPインサート20そのものの回り止
め機能の向上を図ることを目的とする。
Therefore, the present invention relates to an FRP insert 20
The diameter of the through hole 8 to be drilled in the mold plate 7 for fixing the backing is made as small as possible to facilitate the quick and easy backfilling operation and to improve the function of the FRP insert 20 itself to prevent rotation. The purpose is to:

【0014】[0014]

【課題を解決するための手段】この発明は前記課題を解
決するため、請求項1記載のように、軸線方向のボルト
螺合穴を形成した有底円筒状体の外周面に複数の環状突
起部が軸線と交叉する方向で所定の間隔を有して形成さ
れ、その環状突起部の直径方向で相対向する少なくとも
2カ所に切欠部が形成されるとともに、前記ボルト螺合
穴の内底部にはそれよりも小径のネジ穴が形成されてい
ることを特徴とするコンクリート埋込用アンカーを提供
する。
According to the present invention, in order to solve the above-mentioned problems, a plurality of annular projections are formed on the outer peripheral surface of a bottomed cylindrical body having an axial bolt screwing hole. Parts are formed at a predetermined interval in a direction intersecting with the axis, notches are formed in at least two places diametrically opposed to each other in the diametrical direction of the annular projection, and at the inner bottom part of the bolt screw hole. Provides an anchor for concrete embedding, wherein a screw hole having a smaller diameter is formed.

【0015】また、請求項2記載のように、軸線方向の
ボルト螺合穴を形成した有底円筒状体の外周面に複数の
環状突起部が軸線と交叉する方向で所定の間隔を有して
形成され、かつ、直径方向で相対向する少なくとも2カ
所の前記環状突起部間に、軸線と平行な筋状突起部が一
体形成されるとともに、前記ボルト螺合穴の内底部には
それよりも小径のネジ穴が形成されていることを特徴と
するコンクリート埋込用アンカーを提供する。
[0015] According to a second aspect of the present invention, a plurality of annular projections have a predetermined interval in a direction intersecting the axis on the outer peripheral surface of the bottomed cylindrical body having a bolt screw hole in the axial direction. And at least two diametrically opposed annular projections are integrally formed with a streak-like projection parallel to the axis, and the inner bottom of the bolt screw hole has The present invention also provides a concrete embedding anchor, wherein a small diameter screw hole is formed.

【0016】さらに、請求項3記載のように、型枠板に
穿設された透孔に挿入した蝶ネジの端部に有底円筒状体
のボルト螺合穴が挿入されてその内底部の中心に設けら
れたネジ穴に螺入し、その有底円筒状体と型枠板との間
には環状のシールパッキンが介在し、かつ、前記有底円
筒状体は外周面に複数の環状突起部を有することを特徴
とするコンクリート埋め込み用アンカーを提供する。
Further, as set forth in claim 3, a bolt screw hole of a bottomed cylindrical body is inserted into the end of the thumb screw inserted into the through hole formed in the form plate, and the inner bottom of the bolt screw hole is formed. It is screwed into a screw hole provided at the center, an annular seal packing is interposed between the bottomed cylindrical body and the form plate, and the bottomed cylindrical body has a plurality of annular Provided is an anchor for embedding concrete, which has a projection.

【0017】また、請求項4記載のように、型枠板に穿
設された透孔に挿入した蝶ネジの端部に有底円筒状体の
ボルト螺合穴が挿入されてその内底部の中心に設けられ
たネジ穴に螺入し、その有底円筒状体と型枠板との間に
は環状のシールパッキンが介在し、かつ、前記有底円筒
状体は外周面に複数の環状突起部と環状突起部を結ぶ筋
状突起部を有することを特徴とするコンクリート埋め込
み用アンカーを提供する。
According to a fourth aspect of the present invention, a bolt screwing hole of a bottomed cylindrical body is inserted into an end of a thumb screw inserted into a through hole formed in a form plate, and an inner bottom of the bolt is formed. It is screwed into a screw hole provided at the center, an annular seal packing is interposed between the bottomed cylindrical body and the form plate, and the bottomed cylindrical body has a plurality of annular Provided is an anchor for concrete embedding, which has a streak-like projection connecting the projection and the annular projection.

【0018】そして、請求項5記載のように、有底円筒
状体はFRP樹脂からなる成形体であることを特徴とす
る請求項1〜4のいずれか記載のコンクリート埋込用ア
ンカーを提供する。
According to a fifth aspect of the present invention, there is provided the concrete embedding anchor according to any one of the first to fourth aspects, wherein the bottomed cylindrical body is a molded body made of FRP resin. .

【0019】かくして、有底円筒状体の内底部中心にボ
ルト螺合穴よりも小径のネジ穴を設けることにより、そ
のネジ穴にボルトよりも小径の蝶ネジを螺入できるよう
にしたから、型枠板に穿設すべき透孔の内径を可能な限
り小さくできて埋め戻し作業の簡便迅速容易化を図るこ
とができる。しかも、このアンカーは、従来の切欠部よ
りもコンクリート構造体との接触面積の大きい筋状突起
部を一体形成したから、回り止め強度が一層向上する。
Thus, by providing a screw hole smaller in diameter than the bolt screw hole in the center of the inner bottom of the bottomed cylindrical body, a thumb screw smaller in diameter than the bolt can be screwed into the screw hole. The inside diameter of the through-hole to be formed in the mold plate can be made as small as possible, and the backfilling operation can be simplified and speeded up. In addition, since this anchor is integrally formed with a streaky projection having a larger contact area with the concrete structure than the conventional cutout, the anti-rotation strength is further improved.

【0020】[0020]

【発明の実施の形態】以下この発明の実施の形態を図に
基づき説明する。図1〜図3に示すように、第1形態と
してのFRPインサート30は、軸線方向のボルト螺合
穴15を形成した有底円筒状体16の外周面に複数の環
状突起部17が軸線と交叉する方向で所定の間隔を有し
て環状に形成され、その環状突起部17の直径方向で相
対向する少なくとも2カ所に切欠部18が形成された構
造であり、基本的には前記FRPインサートと同じであ
るが、内底部の中心にボルト螺合穴15よりも小径のネ
ジ穴21が設けられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the FRP insert 30 according to the first embodiment has a plurality of annular projections 17 on the outer peripheral surface of a bottomed cylindrical body 16 having an axial bolt screw hole 15 formed therein. The FRP insert has a structure in which the FRP insert is basically formed in a ring shape with a predetermined interval in the intersecting direction, and notches 18 formed in at least two positions diametrically opposed to each other in the annular projection 17. However, a screw hole 21 having a smaller diameter than the bolt screw hole 15 is provided at the center of the inner bottom portion.

【0021】このFRPインサート30は、図8(A)
に示すように、前記FRPインサート20と同様に型枠
板7の片側にシールパッキン19を介在して型枠7の透
孔8に挿通した蝶ネジ22の端部をネジ穴21に螺入し
て固定するものである。蝶ネジ22はダブルナット式の
ものを用いると、一方は蝶ネジ22全体を回転させ、他
方は型枠板7を締め付けることができる。有底円筒状体
16と型枠板7との間には板状環状体のシールパッキン
19が前記と同じく介在させてある。シールパッキン1
9はコンクリート構造体の完成後には除去される。蝶ネ
ジ22はボルト9よりも小径であるから、型枠板7に穿
設すべき透孔8の内径は実質的に小さくなるため、その
埋め戻し作業は軽減される。
The FRP insert 30 is shown in FIG.
As shown in the figure, the end of the thumbscrew 22 inserted through the through hole 8 of the formwork 7 with the seal packing 19 interposed on one side of the formwork plate 7 in the same manner as the FRP insert 20 is screwed into the screw hole 21. Is fixed. When a double nut type thumb screw is used, one can rotate the entire thumb screw 22 and the other can tighten the form plate 7. Between the bottomed cylindrical body 16 and the form plate 7, a plate-shaped annular seal packing 19 is interposed as described above. Seal packing 1
9 is removed after completion of the concrete structure. Since the thumb screw 22 has a smaller diameter than the bolt 9, the inside diameter of the through hole 8 to be drilled in the form plate 7 is substantially smaller, and the work of refilling the through hole 8 is reduced.

【0022】なお、型枠板7を転用しない場合や、型枠
板7の経済性を考慮しない場合には、このFRPインサ
ート30は、図8(B)に示すように、従来と同様にボ
ルト9をボルト螺合穴15に螺入して用いてもよい。
If the form plate 7 is not diverted or the economics of the form plate 7 are not taken into consideration, the FRP insert 30 can be bolted in the same manner as in the prior art, as shown in FIG. 9 may be screwed into the bolt screw hole 15 for use.

【0023】次に、図4及び図5に示すように、この発
明の第2形態としてのFRPインサート31は、基本的
には前記FRPインサート30と同じであり、軸線方向
のボルト螺合穴15を形成した有底円筒状体16の外周
面に複数の環状突起部17が軸線と交叉する方向で所定
の間隔を有して環状に形成され、その環状突起部17の
直径方向で相対向する少なくとも2カ所における環状突
起部17,17,17間には、それぞれ一体の筋状突起
部23,23を少なくとも直径方向で相対向して一体形
成し、かつ、内底部の中心にボルト螺合穴15よりも小
径のネジ穴21を設けた構造である。
Next, as shown in FIGS. 4 and 5, an FRP insert 31 according to a second embodiment of the present invention is basically the same as the FRP insert 30, and has a bolt screw hole 15 in the axial direction. A plurality of annular projections 17 are formed on the outer peripheral surface of the bottomed cylindrical body 16 having a predetermined shape in a direction intersecting the axis with a predetermined interval, and are opposed to each other in the diameter direction of the annular projections 17. In at least two locations between the annular projections 17, 17, 17, integral streak projections 23, 23 are integrally formed at least diametrically opposite to each other, and a bolt screw hole is formed at the center of the inner bottom portion. This is a structure in which a screw hole 21 having a diameter smaller than 15 is provided.

【0024】このFRPインサート31は、前記FRP
インサート30と同様に型枠板7の片側にシールパッキ
ン19を介在して型枠7の透孔8に挿通した蝶ネジ22
をネジ穴21に螺入して固定するものである。有底円筒
状体16と型枠板7との間には板状環状体のシールパッ
キン19が前記と同じく介在させてある。シールパッキ
ン19はコンクリート構造体26の完成後には除去され
る。蝶ネジ22はボルト9よりも小径であるから、型枠
板7に穿設すべき透孔8の内径は実質的に小さくなるた
め、その埋め戻し作業は軽減される。
The FRP insert 31 is made of the FRP
Similarly to the insert 30, the thumb screw 22 inserted into the through hole 8 of the mold frame 7 with the seal packing 19 interposed on one side of the mold plate 7
Is screwed into the screw hole 21 and fixed. Between the bottomed cylindrical body 16 and the form plate 7, a plate-shaped annular seal packing 19 is interposed as described above. The seal packing 19 is removed after the completion of the concrete structure 26. Since the thumb screw 22 has a smaller diameter than the bolt 9, the inside diameter of the through hole 8 to be drilled in the form plate 7 is substantially smaller, and the work of backfilling is reduced.

【0025】このFRPインサート31によれば、筋状
突起部23のコンクリート構造体26との接触面積は、
切欠部18の場合に比べ、大きくなるので回り止め作用
が増大する。
According to the FRP insert 31, the contact area of the streak-like projection 23 with the concrete structure 26 is as follows:
As compared with the case of the notch portion 18, the size of the notch portion 18 is increased, so that the detent action is increased.

【0026】さらに、図6及び図7に示すように、この
発明の第3形態としてのFRPインサート32は、基本
的には前記FRPインサート30,31と同じであり、
軸線方向のボルト螺合穴15を形成した有底円筒状体1
6の外周面に複数の環状突起部17が軸線と交叉する方
向で所定の間隔を有して環状に形成され、その環状突起
部17の直径方向で相対向する少なくとも2カ所におけ
る環状突起部17,17,17間には、それぞれ一体の
筋状突起部24を少なくとも直径方向で相対向して、環
状突起部17及び前記筋状突起部23よりも高く(半径
方向へ突出して)一体形成し、かつ、内底部の中心にボ
ルト螺合穴15よりも小径のネジ穴21を設けた構造で
ある。
Further, as shown in FIGS. 6 and 7, an FRP insert 32 according to a third embodiment of the present invention is basically the same as the FRP inserts 30 and 31,
Bottomed cylindrical body 1 formed with bolt screw holes 15 in the axial direction
A plurality of annular projections 17 are formed on an outer peripheral surface of the annular projection 17 at predetermined intervals in a direction intersecting the axis, and at least two annular projections 17 diametrically opposed to each other in the diameter direction of the annular projections 17. , 17, 17, are integrally formed so as to be integrally opposed to each other at least in the diametrical direction at a height higher than the annular protrusion 17 and the streaky protrusion 23 (projecting in the radial direction). The screw hole 21 has a smaller diameter than the bolt screw hole 15 at the center of the inner bottom.

【0027】このFRPインサート32は、前記FRP
インサート30,31と同様に型枠板7の片側にシール
パッキン19を介在して型枠7の透孔8に挿通した蝶ネ
ジ22をネジ穴21に螺入して固定するものである。有
底円筒状体16と型枠板7との間には板状環状体のシー
ルパッキン19が前記と同じく介在させてある。シール
パッキン19はコンクリート構造体26の完成後には除
去される。蝶ネジ22はボルト9よりも小径であるか
ら、型枠板7に穿設すべき透孔8の内径は実質的に小さ
くなるため、その埋め戻し作業は軽減される。
This FRP insert 32 is made of the above FRP
Similar to the inserts 30 and 31, a thumb screw 22 inserted through the through hole 8 of the mold frame 7 with a seal packing 19 interposed on one side of the mold frame plate 7 is screwed into the screw hole 21 and fixed. Between the bottomed cylindrical body 16 and the form plate 7, a plate-shaped annular seal packing 19 is interposed as described above. The seal packing 19 is removed after the completion of the concrete structure 26. Since the thumb screw 22 has a smaller diameter than the bolt 9, the inside diameter of the through hole 8 to be drilled in the form plate 7 is substantially smaller, and the work of backfilling is reduced.

【0028】このFRPインサート32によれば、筋状
突起部24のコンクリート構造体との接触面積は、筋状
突起部23の場合に比べ、大きくなるのでFRPインサ
ート30,31よりも回り止め機能が大幅に増大する。
According to the FRP insert 32, the contact area of the streak-like projections 24 with the concrete structure is larger than that of the streak-like projections 23, so that the FRP inserts 30 and 31 have a more detent function than the FRP inserts 30 and 31. Increase significantly.

【0029】かくして、環状突起部17及び又は筋状突
起部18を外周面に形成した有底円筒状体16の内底部
中心に、ボルト螺合穴15よりも小径のネジ穴21を設
けることにより、そのネジ穴21にボルト9よりも小径
の蝶ネジ22を螺入できるようにしたから、型枠板7に
穿設すべき透孔8の内径を可能な限り小さくできて埋め
戻し作業の簡便迅速容易化を図ることができる。しか
も、FRPインサート31,32は、従来の切欠部18
よりもコンクリート構造体26との接触面積の大きい筋
状突起部23,24を一体形成したから、アンカーとし
ての回り止め強度が一層向上する。
Thus, a screw hole 21 having a diameter smaller than that of the bolt screw hole 15 is provided at the center of the inner bottom of the bottomed cylindrical body 16 having the annular projection 17 and / or the streak projection 18 formed on the outer peripheral surface. Since the thumb screw 22 having a smaller diameter than the bolt 9 can be screwed into the screw hole 21, the inside diameter of the through hole 8 to be formed in the form plate 7 can be made as small as possible, and the backfill operation is simplified. Quick and easy operation can be achieved. Moreover, the FRP inserts 31 and 32 are not
Since the streak-like projections 23 and 24 having a larger contact area with the concrete structure 26 are integrally formed, the strength of the anti-rotation as an anchor is further improved.

【0030】[0030]

【発明の効果】請求項1記載の発明によれば、ボルトよ
りも小さい直径の蝶ネジを用いることができるから、ア
ンカーを型枠板に固定するために型枠板に穿設する透孔
の直径を小さくすることができるため、透孔の埋め戻し
作業の簡便迅速容易化を図ることができ、作業能率が向
上する。
According to the first aspect of the present invention, a thumb screw having a diameter smaller than that of a bolt can be used. Therefore, a through hole formed in a form plate for fixing an anchor to the form plate is provided. Since the diameter can be reduced, the operation of backfilling the through-holes can be simplified and speeded up easily, and the work efficiency is improved.

【0031】請求項2記載の発明によれば、環状突起部
間に軸線と平行な筋状突起部を一体形成したから、コン
クリート構造体とアンカーとの接触面積が向上し、とり
わけ回り止め作用が向上する。
According to the second aspect of the present invention, since the linear projection parallel to the axis is integrally formed between the annular projections, the contact area between the concrete structure and the anchor is improved, and in particular, the detent action is prevented. improves.

【0032】請求項3記載の発明によれば、アンカーを
型枠板に固定するときはボルトよりも小径の蝶ネジを用
いることができるため、型枠板に穿設する透孔の内径を
小さくしてその埋め戻し作業性の向上を図ることができ
ると共に、蝶ネジを用いることにより型枠板への固定作
業時に治具を用いず手動で足りるから、作業性が大幅に
向上する。
According to the third aspect of the invention, when fixing the anchor to the form plate, a thumb screw having a smaller diameter than the bolt can be used, so that the inner diameter of the through hole formed in the form plate is reduced. The workability of backfilling can be improved, and the workability can be greatly improved by using a thumbscrew, since it is sufficient to manually fix the work to the formwork plate without using a jig.

【0033】請求項4記載の発明によれば、請求項3の
効果に加え、コンクリート構造体に埋め込まれたアンカ
ーの引き抜き及び回り止め強度が一層向上する。
According to the fourth aspect of the present invention, in addition to the effect of the third aspect, the pull-out and detent strength of the anchor embedded in the concrete structure is further improved.

【0034】請求項5記載の発明によれば、有底円筒状
体はFRP樹脂からなる成形体としたので、耐食性や耐
振動衝撃性に優れ、かつ、コスト安価に提供できる。
According to the fifth aspect of the present invention, since the bottomed cylindrical body is a molded body made of FRP resin, it can be provided with excellent corrosion resistance, vibration shock resistance, and low cost.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の実施の第1形態を示す斜視図。FIG. 1 is a perspective view showing a first embodiment of the present invention.

【図2】図1の平面図。FIG. 2 is a plan view of FIG. 1;

【図3】図2のA−A断面図。FIG. 3 is a sectional view taken along line AA of FIG. 2;

【図4】この発明の実施の第4形態を示す斜視図。FIG. 4 is a perspective view showing a fourth embodiment of the present invention.

【図5】図4のB−B断面図。FIG. 5 is a sectional view taken along line BB of FIG. 4;

【図6】この発明の実施の第3形態を示す斜視図。FIG. 6 is a perspective view showing a third embodiment of the present invention.

【図7】図6のC−C断面図。FIG. 7 is a sectional view taken along line CC of FIG. 6;

【図8】この発明の適用例を示す一部断面側面図。FIG. 8 is a partial sectional side view showing an application example of the present invention.

【図9】従来のアンカーの適用例を示す一部断面側面
図。
FIG. 9 is a partial cross-sectional side view showing an application example of a conventional anchor.

【図10】他の従来のアンカーを示す斜視図(A)、平
面図(B)及びD−D断面図(C)。
FIG. 10 is a perspective view (A), a plan view (B), and a DD sectional view (C) showing another conventional anchor.

【図11】図10のアンカーの適用例を示す一部断面側
面図。
11 is a partial cross-sectional side view showing an application example of the anchor of FIG.

【図12】コンクリート構造体における図10のアンカ
ーの状態を示す断面側面図。
FIG. 12 is a sectional side view showing a state of the anchor of FIG. 10 in the concrete structure.

【符号の説明】[Explanation of symbols]

15…ボルト螺合穴 16…有底円筒状体 17…環状突起部 18…切欠部 21…ネジ穴 22…蝶ネジ 23,24…筋状突起部 30,31,32…FRPインサート(アンカー) 15: Bolt screw hole 16: Cylindrical body with bottom 17: Annular projection 18: Notch 21: Screw hole 22: Thumb screw 23, 24: Streaked projection 30, 31, 32: FRP insert (anchor)

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 軸線方向のボルト螺合穴を形成した有底
円筒状体の外周面に複数の環状突起部が軸線と交叉する
方向で所定の間隔を有して形成され、その環状突起部の
直径方向で相対向する少なくとも2カ所に切欠部が形成
されるとともに、前記ボルト螺合穴の内底部にはそれよ
りも小径のネジ穴が形成されていることを特徴とするコ
ンクリート埋込用アンカー。
A plurality of annular projections are formed on an outer peripheral surface of a bottomed cylindrical body having an axial bolt screwing hole at predetermined intervals in a direction intersecting with an axis, and the annular projections are provided. Notches are formed at least at two positions diametrically opposite each other, and a screw hole having a smaller diameter is formed at an inner bottom of the bolt screw hole. anchor.
【請求項2】 軸線方向のボルト螺合穴を形成した有底
円筒状体の外周面に複数の環状突起部が軸線と交叉する
方向で所定の間隔を有して形成され、かつ、直径方向で
相対向する少なくとも2カ所の前記環状突起部間に、軸
線と平行な筋状突起部が一体形成されるとともに、前記
ボルト螺合穴の内底部にはそれよりも小径のネジ穴が形
成されていることを特徴とするコンクリート埋込用アン
カー。
2. A plurality of annular projections are formed at predetermined intervals in a direction intersecting with the axis on an outer peripheral surface of a bottomed cylindrical body having an axial bolt screwing hole formed therein, and are formed in a diametrical direction. A streak-shaped projection parallel to the axis is integrally formed between at least two annular projections opposed to each other, and a screw hole having a smaller diameter is formed at an inner bottom of the bolt screw hole. An anchor for embedding concrete, comprising:
【請求項3】 型枠板に穿設された透孔に挿入した蝶ネ
ジの端部に有底円筒状体のボルト螺合穴が挿入されてそ
の内底部の中心に設けられたネジ穴に螺入し、その有底
円筒状体と型枠板との間には環状のシールパッキンが介
在し、かつ、前記有底円筒状体は外周面に複数の環状突
起部を有することを特徴とするコンクリート埋め込み用
アンカー。
3. A bolt screw hole of a cylindrical body with a bottom is inserted into an end of a thumb screw inserted into a through hole formed in a mold plate, and a screw hole provided at the center of the inner bottom is inserted into the screw hole. It is screwed, an annular seal packing is interposed between the bottomed cylindrical body and the form plate, and the bottomed cylindrical body has a plurality of annular projections on the outer peripheral surface. Concrete embedding anchor.
【請求項4】 型枠板に穿設された透孔に挿入した蝶ネ
ジの端部に有底円筒状体のボルト螺合穴が挿入されてそ
の内底部の中心に設けられたネジ穴に螺入し、その有底
円筒状体と型枠板との間には環状のシールパッキンが介
在し、かつ、前記有底円筒状体は外周面に複数の環状突
起部と環状突起部を結ぶ筋状突起部を有することを特徴
とするコンクリート埋め込み用アンカー。
4. A bolt screw hole of a cylindrical body with a bottom is inserted into an end of a thumb screw inserted into a through hole formed in a form plate, and a screw hole provided at the center of the inner bottom is inserted into the hole. An annular seal packing is interposed between the bottomed cylindrical body and the mold plate, and the bottomed cylindrical body connects a plurality of annular projections and an annular projection on the outer peripheral surface. An anchor for embedding concrete, having a streak-like projection.
【請求項5】 有底円筒状体はFRP樹脂からなる成形
体であることを特徴とする請求項1〜4のいずれか記載
のコンクリート埋込用アンカー。
5. The concrete embedding anchor according to claim 1, wherein the bottomed cylindrical body is a molded body made of FRP resin.
JP2000133057A 2000-05-02 2000-05-02 Anchor for digging in concrete Pending JP2001311223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000133057A JP2001311223A (en) 2000-05-02 2000-05-02 Anchor for digging in concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000133057A JP2001311223A (en) 2000-05-02 2000-05-02 Anchor for digging in concrete

Publications (1)

Publication Number Publication Date
JP2001311223A true JP2001311223A (en) 2001-11-09

Family

ID=18641625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000133057A Pending JP2001311223A (en) 2000-05-02 2000-05-02 Anchor for digging in concrete

Country Status (1)

Country Link
JP (1) JP2001311223A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007070879A (en) * 2005-09-07 2007-03-22 Hokkon:Kk Separator for form with anchor action, and its use method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007070879A (en) * 2005-09-07 2007-03-22 Hokkon:Kk Separator for form with anchor action, and its use method

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