JPH10325213A - Reinforced coupler - Google Patents
Reinforced couplerInfo
- Publication number
- JPH10325213A JPH10325213A JP13803297A JP13803297A JPH10325213A JP H10325213 A JPH10325213 A JP H10325213A JP 13803297 A JP13803297 A JP 13803297A JP 13803297 A JP13803297 A JP 13803297A JP H10325213 A JPH10325213 A JP H10325213A
- Authority
- JP
- Japan
- Prior art keywords
- connecting member
- pair
- nipple
- flange
- reinforcing bar
- 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
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建築あるいは土木
等において使用されるセグメント、壁体、構造物等（総
称して「製品」ともいう）の間を締結するため、締結し
ようとする互いの製品から突設されている鉄筋間を締結
するための鉄筋カプラーで、特に締結しようとする鉄筋
が三次元空間において段違いに突設されている鉄筋間を
自在に締結することができる鉄筋カプラーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fastening segments, walls, structures and the like (collectively referred to as "products") used in construction or civil engineering. The present invention relates to a reinforcing bar coupler for fastening between reinforcing bars protruding from a product, and more particularly to a reinforcing bar coupler capable of freely fastening between reinforcing bars that are staggered in a three-dimensional space.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】建築
あるいは土木分野において、予め工場等において所定寸
法にセグメントを成形しておき、現場においてこれらの
セグメントＮ，Ｎの間を締結して、建築物あるいは図７
に図示する如きトンネル等の構造物の壁面を作り上げよ
うとする工法がある。2. Description of the Related Art In the field of construction or civil engineering, segments are previously formed to predetermined dimensions in a factory or the like, and these segments N and N are fastened at a site to construct a building. Or Figure 7
There is a construction method for creating a wall surface of a structure such as a tunnel as shown in FIG.
【０００３】このような場合、構造物に作用する応力が
隣接するセグメントに円滑に伝達できるように、それぞ
れの内部に配設されている鉄筋１を各端面から突設して
おき、これらの鉄筋を締結しておく必要がある。[0003] In such a case, the reinforcing bars 1 disposed inside each of the reinforcing bars are projected from each end face so that the stress acting on the structure can be smoothly transmitted to the adjacent segments. Must be concluded.
【０００４】従来、このような各製品から突設された一
対の鉄筋１相互は、鉄筋間の締結に汎用されている、所
謂「番線」と呼ばれる金属ワイヤＷによって相互に緊締
して締結されている（図８参照）。Conventionally, a pair of reinforcing bars 1 projecting from such products are mutually fastened and fastened by a so-called "wire" called a "wire" which is generally used for fastening between the reinforcing bars. (See FIG. 8).
【０００５】この際、一対の鉄筋１，１が平行に略接触
する位置にある場合には、図８に図示するように簡単に
接触させた状態で締結できるが、一対の鉄筋１，１が三
次元空間において互いに段違いになっている場合には、
この鉄筋１にパイプ等を入れて「てこの原理」を利用し
て互いの鉄筋が緊締部分で略平行に接触するような状態
に曲げて「番線」で締結していた。[0005] At this time, when the pair of reinforcing bars 1 and 1 are in a position where they are substantially in contact with each other in parallel, as shown in FIG. If the three-dimensional space is different from each other,
A pipe or the like is inserted into the reinforcing bar 1 and, using the "leverage principle", the reinforcing bars are bent into a state in which the reinforcing bars contact each other substantially in parallel at the tightening portion, and are fastened with a "line".
【０００６】しかしながら、鉄筋の太さが太くなると、
上述のような手法では曲げることができず、従って、間
に空隙のある状態であるいはその空隙に鉄片等を挿置し
て、一対の鉄筋を締結するしか締結の手法が存在しなか
った。[0006] However, when the thickness of the reinforcing bar increases,
The bending cannot be performed by the above-described method, and therefore, there is no other fastening method than fastening a pair of reinforcing bars in a state where there is a gap or by inserting an iron piece or the like in the gap.
【０００７】本発明は、上記課題を解決するためにおこ
なわれたもので、締結しようとする一対の鉄筋が段違い
であっても同芯上にあっても円滑に且つ迅速に締結でき
る鉄筋カプラーを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a reinforcing bar coupler which can smoothly and quickly tighten a pair of reinforcing bars even if the pair of reinforcing bars is stepped or coaxial. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】本発明の上記課題は、請
求項１記載の鉄筋カプラーによって解決される。つま
り、最もシンプルな構成の鉄筋カプラーとしては、間を
隔てて各製品から突設された一対の鉄筋を締結するため
の鉄筋カプラーであって、このカプラーが、上記一対の
各鉄筋の端部に一端が一体的に取着された各ニップル
と、基端部が上記ニップルと結合手段を介して屈折自在
に結合され螺着用のねじ部を備えた締結ボルト部を先端
に有する一対の連結部材と、この一対の連結部材の締結
ボルト部間を一体に螺着する締結ナットを具備し、上記
一対の連結部材のうちの一方の連結部材のねじ部が右ね
じで構成されるとともに、他方の連結部材のねじ部が左
ねじで構成され、且つ、上記締結ナットの一端部に右ね
じが他端部に左ねじが形成され、上記結合手段によって
ニップルと連結部材との各接続部分が折り曲げ自在に構
成されていることを特徴とするものである。The above object of the present invention is achieved by a reinforcing bar coupler according to the present invention. In other words, the simplest configuration of a reinforcing bar coupler is a reinforcing bar coupler for fastening a pair of reinforcing bars projecting from each product with a gap between them, and this coupler is attached to the end of each of the pair of reinforcing bars. Each nipple having one end integrally attached thereto, and a pair of connecting members having a fastening bolt portion having a threaded screw portion at the distal end, the base end portion of the nipple being flexibly coupled to the nipple via coupling means, and A fastening nut for integrally screwing between the fastening bolt portions of the pair of connecting members, wherein the threaded portion of one of the pair of connecting members is formed with a right-hand thread, and the other is connected. The threaded portion of the member is formed with a left-hand thread, and a right-hand thread is formed at one end of the fastening nut, and a left-hand thread is formed at the other end, and each connecting portion between the nipple and the connecting member can be bent by the above-mentioned coupling means. Be configured The one in which the features.
【０００９】しかして、このように構成された鉄筋カプ
ラーによれば、図４〜図６に図示するように、締結しよ
うとする一対の鉄筋が互いに段違いになっていても、各
連結部材が接続（連結）しようとするそれぞれのニップ
ルに対して、結合手段によって、折り曲げ自在に結合さ
れていることから、各連結部材が、段違い状態に突設さ
れているそれぞれの鉄筋に対して、該段違い状態に対応
して傾斜できるため、簡単に且つ迅速に締結することが
できる。そして、長さ的には、締結ナットをそれぞれの
連結部材のねじ部に対して適宜回転させることによって
調整することができるため、両側から突設している鉄筋
を直線的に連結することが可能となる。According to the reinforcing bar coupler constructed as described above, as shown in FIGS. 4 to 6, even if the pair of reinforcing bars to be fastened is different from each other, the connecting members are connected. Since each nipple to be (coupled) is foldably coupled to each nipple by the coupling means, each connecting member is connected to each of the reinforcing bars projecting in a stepped state in the stepped state. Can be easily and quickly fastened. In addition, since the length can be adjusted by appropriately rotating the fastening nut with respect to the screw portion of each connecting member, it is possible to linearly connect the reinforcing bars projecting from both sides. Becomes
【００１０】また、上記課題は、請求項１でいう結合手
段の構成をさらに具体的（下位概念的）に表現（限定）
した請求項４記載の鉄筋カプラーによって解決される。
即ち、この鉄筋カプラーは、間を隔てて各製品から突設
された一対の鉄筋を締結するための鉄筋カプラーであっ
て、このカプラーが、上記一対の各鉄筋の端部に一体的
に取着され外周におねじが螺設された各ニップルと、両
端に鍔部とこれらの鍔部間を連結する締結ボルト部を有
する一つの連結部材と、上記ニップルのおねじに螺合す
るめねじを内周に備えるとともに先端に上記連結部材の
径より大きい貫通孔とその後方に該連結部材の鍔部を収
容する空間を有して、該ニップル部材との間に上記連結
部材の各鍔部をそれぞれ保持する各袋ナットとを具備
し、且つ、上記ニップルの先端に第１の二次曲面が形成
されるとともに、上記連結部材の各鍔部の基端面が上記
第１の二次曲面に面接触する第２の二次曲面が形成さ
れ、該各鍔部の締結ボルト部が取着されている周部に上
記第１の二次曲面と同じ向きに第３の二次曲面が形成さ
れ、又、上記袋ナットの貫通孔の内方の周囲に第３の二
次曲面に面接触する第４の二次曲面が形成されることに
よって、上記各二次曲面の向きに連結部材の締結ボルト
部が自在に傾斜して、一対の鉄筋が直線的に締結できる
ことを特徴とする。The above object is achieved by expressing (limiting) the structure of the connecting means in claim 1 more specifically (subordinate concept).
The problem is solved by a reinforcing bar coupler according to claim 4.
That is, the rebar coupler is a rebar coupler for fastening a pair of rebars projecting from each product with a space therebetween, and the coupler is integrally attached to an end of each of the pair of rebars. Each of the nipples is provided with a screw on the outer periphery thereof, one connecting member having a flange at both ends and a fastening bolt for connecting the flanges, and a female screw screwed into the external thread of the nipple. It has a through hole larger than the diameter of the connecting member at the tip and a space for accommodating the flange of the connecting member at the rear thereof, and each flange of the connecting member is provided between the nipple member and the nipple member. And each cap nut to be held, and a first secondary curved surface is formed at a tip of the nipple, and a base end surface of each flange of the connecting member is in surface contact with the first secondary curved surface. A second quadratic curved surface is formed, and a fastening button of each flange is formed. A third secondary curved surface is formed in the same direction as the first secondary curved surface on the peripheral portion where the mounting portion is attached, and a third secondary curved surface is formed around the inside of the through hole of the cap nut. By forming the fourth quadratic surface that comes into surface contact with the next curved surface, the fastening bolt portion of the connecting member is freely inclined in the direction of each of the secondary curved surfaces, so that the pair of rebars can be linearly fastened. Features.
【００１１】しかして、このように構成された鉄筋カプ
ラーによれば、締結しようとする一対の鉄筋が互いに段
違いになっていても、連結部材がその段違いに対応して
傾斜できるため、簡単に且つ迅速に締結することができ
る。つまり、連結部材を鉄筋側に連結する鍔部が第２の
二次曲面と第３の二次曲面を有し、これらの曲面がそれ
ぞれ面接触するニップルの第１の二次曲面と袋ナットの
第４の二次曲面とで保持されるため、二次曲面の接線の
方向が変化する方向に自在に回動することができ、この
結果、締結ボルトが傾斜して段違い状の一対の鉄筋を締
結することができる。According to the reinforcing bar coupler constructed as described above, even if the pair of reinforcing bars to be fastened is stepped, the connecting member can be inclined in accordance with the step, so that it is simple and easy. Can be fastened. That is, the flange connecting the connecting member to the rebar side has a second secondary curved surface and a third secondary curved surface, and these curved surfaces are respectively in surface contact with the first secondary curved surface of the nipple and the cap nut. Since it is held by the fourth quadratic curved surface, it can freely rotate in the direction in which the direction of the tangential line of the quadratic curved surface changes. As a result, the fastening bolt is inclined and the pair of stepped rebars is formed. Can be fastened.
【００１２】また、本発明の上記課題は、請求項５記載
の鉄筋カプラーによっても解決される。つまり、この鉄
筋カプラーは、間に空間を隔てて各製品から突設された
一対の鉄筋を締結するための鉄筋カプラーであって、こ
のカプラーが、上記一対の各鉄筋の端部に一体的に取着
され外周におねじが螺設されたニップルと、基端部に鍔
部とこの鍔部から先端側に延設され先端に螺着用のねじ
部を備えた締結ボルト部を有する連結部材と、上記ニッ
プルのおねじに螺合するめねじを内周に備えるとともに
先端に上記連結部材の径より大きい貫通孔とその後方に
該連結部材の鍔部を収容する空間を有して、該ニップル
部材との間に上記連結部材の鍔部を保持する袋ナット
と、上記一対の連結部材の端部を螺着する締結ナットと
を具備し、且つ、上記ニップルの先端に第１の二次曲面
が形成されるとともに、上記連結部材の鍔部の基端面が
上記第１の二次曲面に面接触する第２の二次曲面が形成
され、該鍔部の締結ボルト部が取着されている周部に上
記第１の二次曲面と同じ向きに第３の二次曲面が形成さ
れ、又、上記袋ナットの貫通孔の内方の周囲に第３の二
次曲面に面接触する第４の二次曲面が形成されることに
よって、上記各二次曲面の向きに連結部材の締結ボルト
部側が自在に傾斜して、一対の鉄筋が直線的に締結でき
ることを特徴とする。[0012] The above object of the present invention can also be solved by a reinforcing bar coupler according to claim 5. In other words, this reinforcing bar coupler is a reinforcing bar coupler for fastening a pair of reinforcing bars protruding from each product with a space therebetween, and the coupler is integrally formed at an end of each of the pair of reinforcing bars. A nipple attached and screwed on the outer periphery, a coupling member having a flange portion at the base end and a fastening bolt portion extending from the flange portion to the distal end side and having a screw portion for screwing at the distal end; A nipple member having an internal thread on the inner periphery for screwing to the male screw of the nipple, a tip end having a through hole larger than the diameter of the connecting member, and a space behind the through hole for accommodating a flange portion of the connecting member. A cap nut holding the flange of the connecting member, a fastening nut for screwing the ends of the pair of connecting members, and a first secondary curved surface is provided at the tip of the nipple. And the base end face of the flange of the connecting member is A second secondary curved surface which is in surface contact with the first secondary curved surface is formed, and a third secondary curved surface is formed in the same direction as the first secondary curved surface on the periphery of the flange portion where the fastening bolt portion is attached. A secondary curved surface is formed, and a fourth secondary curved surface that is in surface contact with the third secondary curved surface is formed around the inside of the through hole of the cap nut, so that the orientation of each of the secondary curved surfaces is adjusted. The connecting bolt side of the connecting member is freely inclined, and the pair of reinforcing bars can be fastened linearly.
【００１３】しかして、このように構成された鉄筋カプ
ラーによれば、基本的に請求項４記載の発明と同様の作
用効果を奏する。しかも、連結部材が、左右一対の連結
部材から構成されているため、この部分で鉄筋間の距離
に合わせてカプラーの寸法の調整が可能であることか
ら、使い勝手の良い鉄筋カプラーとなる。また、このよ
うな締結ボルトは、製造面からも、一端に鍔部が他端に
おねじが形成されるのみであるため、簡単に製造するこ
とができる。According to the reinforcing bar coupler constructed as described above, the same operation and effect as those of the fourth aspect of the present invention can be basically obtained. Moreover, since the connecting member is composed of a pair of left and right connecting members, the dimensions of the coupler can be adjusted in accordance with the distance between the reinforcing bars at this portion, so that the reinforcing bar coupler is easy to use. In addition, such a fastening bolt can be easily manufactured because only a flange is formed at one end and a screw is formed at the other end from the manufacturing point of view.
【００１４】また、本発明の上記課題は、請求項６記載
の鉄筋カプラーによっても解決される。つまり、この鉄
筋カプラーは、間に空間を隔てて各製品から突設された
一対の鉄筋を締結するための鉄筋カプラーであって、こ
のカプラーが、上記一対の各鉄筋の端部に一体的に取着
され外周におねじが螺設された各ニップルと、両端に鍔
部とこれらの鍔部間を連結する締結ボルト部を有する連
結部材と、上記ニップルのおねじに螺合するめねじを内
周に備えるとともに先端に上記連結部材の径より大きい
貫通孔とその後方に該連結部材の鍔部を収容する空間を
有して、該ニップル部材との間に上記連結部材の各鍔部
をそれぞれ保持する各袋ナットとを具備し、且つ、上記
ニップルの先端に第１の部分球面が形成されるととも
に、上記連結部材の各鍔部の基端面が上記第１の部分球
面に面接触する第２の部分球面が形成され、該各鍔部の
締結ボルト部が取着されている周部に上記第１の部分球
面と同じ向きに第３の部分球面が形成され、又、上記袋
ナットの貫通孔の内方の周囲に第３の部分球面に面接触
する第４の部分球面が形成されることによって、上記連
結部材の締結ボルト部側が自在に傾斜して、一対の鉄筋
を直線的に締結することができることを特徴とする。[0014] The above object of the present invention is also solved by a reinforcing bar coupler according to claim 6. In other words, this reinforcing bar coupler is a reinforcing bar coupler for fastening a pair of reinforcing bars protruding from each product with a space therebetween, and the coupler is integrally formed at an end of each of the pair of reinforcing bars. Each nipple, which is attached and has a screw threaded on the outer periphery, a connecting member having a flange at both ends and a fastening bolt portion connecting the flanges, and a female screw screwed into the external thread of the nipple are included. It has a through hole larger than the diameter of the connecting member at the tip and a space for accommodating the flange of the connecting member at the rear thereof, and each flange of the connecting member is provided between the nipple member and the nipple member. A first partial spherical surface is formed at the distal end of the nipple, and a base end surface of each flange of the connecting member is in surface contact with the first partial spherical surface. 2 partial spherical surfaces are formed, and each flange is fastened. A third partial spherical surface is formed in the same direction as the first partial spherical surface on the peripheral portion where the tilting portion is attached, and a third partial spherical surface is formed around the inside of the through hole of the cap nut. By forming the fourth partial spherical surface that is in surface contact, the fastening bolt portion side of the connecting member is freely inclined, and the pair of reinforcing bars can be fastened linearly.
【００１５】しかして、このように構成された鉄筋カプ
ラーによれば、基本的に請求項４記載の発明と同様の作
用効果を奏する。しかも、請求項４で二次曲面で構成さ
れている箇所が、この発明では、部分球面（三次曲面）
で構成されているため、締結ボルトをいかなる任意の方
向へも傾斜させて配設することができる。According to the reinforcing bar coupler constructed as described above, the same operation and effect as those of the fourth aspect of the invention can be basically obtained. Moreover, in the present invention, the portion constituted by the quadratic curved surface is a partial spherical surface (cubic curved surface).
Therefore, the fastening bolts can be arranged to be inclined in any arbitrary direction.
【００１６】また、本発明の上記課題は、請求項７記載
の鉄筋カプラーによっても解決される。つまり、この鉄
筋カプラーは、間に空間を隔てて各製品から突設された
一対の鉄筋を締結するための鉄筋カプラーであって、こ
のカプラーが、上記一対の各鉄筋の端部に一体的に取着
され外周におねじが螺設された各ニップルと、基端部に
鍔部とこの鍔部から先端側に延設され先端に螺着用のね
じ部を備えた締結ボルト部を有する一対の連結部材と、
上記ニップルのおねじに螺合するめねじを内周に備える
とともに先端に上記連結部材の径より大きい貫通孔とそ
の後方に該連結部材の鍔部を収容する空間を有して、該
ニップルとの間に上記連結部材の鍔部を保持する各袋ナ
ットと、上記一対の連結部材の端部を螺着する締結ナッ
トとを具備し、且つ、上記ニップルの先端に第１の部分
球面が形成されるとともに、上記連結部材の鍔部の基端
面が上記第１の部分球面に面接触する第２の部分球面が
形成され、該鍔部の締結ボルト部が取着されている周部
に上記第１の部分球面と同じ向きに第３の部分球面が形
成され、又、上記袋ナットの貫通孔の内方の周囲に第３
の部分球面に面接触する第４の部分球面が形成されるこ
とによって、上記連結部材の締結ボルト部側が自在に傾
斜して、一対の鉄筋を直線的に締結することができるこ
とを特徴とする。[0016] The above object of the present invention can also be solved by a reinforcing bar coupler according to claim 7. In other words, this reinforcing bar coupler is a reinforcing bar coupler for fastening a pair of reinforcing bars protruding from each product with a space therebetween, and the coupler is integrally formed at an end of each of the pair of reinforcing bars. A pair of nipples each having an attached screw thread on the outer circumference, a flange at the base end and a fastening bolt extending from the flange to the distal end and having a threaded screw at the distal end. A connecting member;
A female screw is screwed into the male screw of the nipple on the inner circumference, and a tip end has a through hole larger than the diameter of the connecting member and a space behind the connecting hole for accommodating a flange of the connecting member. A cap nut for holding the flange of the connecting member, a fastening nut for screwing the ends of the pair of connecting members, and a first partial spherical surface is formed at the tip of the nipple. A second partial spherical surface is formed in which the base end surface of the flange of the connecting member is in surface contact with the first partial spherical surface, and the second partial spherical surface is formed on a peripheral portion of the flange where the fastening bolt portion is attached. A third partial spherical surface is formed in the same direction as the first partial spherical surface, and a third partial spherical surface is formed around the inside of the through hole of the cap nut.
By forming the fourth partial spherical surface which is in surface contact with the partial spherical surface, the fastening bolt portion side of the connecting member can be freely inclined to linearly fasten the pair of reinforcing bars.
【００１７】しかして、このように構成された鉄筋カプ
ラーによれば、基本的に請求項６記載の発明と同様の作
用効果を奏する。しかも、連結部材が、左右一対の連結
部材から構成されているため、この部分で鉄筋間の距離
に合わせてカプラーの寸法の調整が可能であることか
ら、使い勝手の良い鉄筋カプラーとなる。また、このよ
うな連結部材は、製造面からも、一端に鍔部が他端にお
ねじが形成されるのみであるため、簡単に製造すること
ができる。According to the reinforcing bar coupler constructed as described above, the same operation and effect as those of the sixth aspect of the invention can be basically obtained. Moreover, since the connecting member is composed of a pair of left and right connecting members, the dimensions of the coupler can be adjusted in accordance with the distance between the reinforcing bars at this portion, so that the reinforcing bar coupler is easy to use. In addition, such a connecting member can be easily manufactured because only a flange is formed at one end and a screw is formed at the other end from the viewpoint of manufacturing.
【００１８】[0018]
【発明の実施の形態】そして、一つの実施の形態とし
て、請求項２に記載するように、請求項１において記載
する結合手段が、部分球面と、この部分球面を折り曲げ
自在に且つ引張および圧縮方向に拘束するよう保持する
球面座で構成されてと、折り曲げがあらゆる方向に円滑
におこなえる点で優れた構成となる。According to an embodiment of the present invention, as described in claim 2, the coupling means described in claim 1 includes a partial spherical surface, and the partial spherical surface can be bent and tensioned and compressed. If it is configured with a spherical seat that holds it in such a manner that it is constrained in the direction, it is an excellent configuration in that bending can be performed smoothly in all directions.
【００１９】また、一つの実施の形態として、請求項３
に記載するように、請求項１において記載する結合手段
が、ピン継手構造によって構成されていると、非常に簡
単な構成によって折り曲げ自在な構造を実現できる。か
かる構成の場合には安価に提供することが可能となる。According to another embodiment of the present invention,
As described in the above, when the coupling means described in the first aspect is constituted by a pin joint structure, a very simple structure can realize a bendable structure. In the case of such a configuration, it can be provided at a low cost.
【００２０】また、請求項８に記載するように、一つの
実施の形態として、請求項４〜７において記載する袋ナ
ットの貫通孔が外方で拡がった孔に形成されていると、
袋ナットと締結ボルトとの隙間を可及的に少なくできる
点で優れた構成となる。According to an eighth aspect of the present invention, in one embodiment, the through-hole of the cap nut described in the fourth to seventh aspects is formed in a hole which expands outward.
This is an excellent configuration in that the gap between the cap nut and the fastening bolt can be reduced as much as possible.
【００２１】また、請求項９に記載するように、一つの
実施の形態として、請求項１〜８に記載する鉄筋カプラ
ーにおけるニップルの基端面側に、開口した有底のめね
じ孔が形成されるとともに、各鉄筋の端部にこのめねじ
孔に螺合するおねじが形成されることによって、ニップ
ルが鉄筋に螺着されるよう構成されていると、スパナ等
の手工具を用いて簡単に締結しようとする鉄筋の端部に
取着することができる点で好ましい構成となる。According to a ninth aspect of the present invention, as an embodiment, a female screw hole having an open bottom is formed on the base end face side of the nipple in the reinforcing bar coupler according to the first to eighth aspects. When the nipple is screwed to the rebar by forming a male screw to be screwed into the female screw hole at the end of each rebar, it is easy to use a hand tool such as a spanner. This is a preferable configuration in that it can be attached to the end of the reinforcing bar to be fastened to the reinforcing member.
【００２２】[0022]
【実施例】以下、本願発明にかかる実施例を図面を参照
しながら具体的に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be specifically described below with reference to the drawings.
【００２３】図１は本発明の一実施例にかかる鉄筋カプ
ラーの構成を示す要部を断面した全体図である。FIG. 1 is an overall sectional view of a main part showing a configuration of a reinforcing bar coupler according to an embodiment of the present invention.
【００２４】図１において、１（１Ａ，１Ｂ）は鉄筋、
Ｃは鉄筋１Ａと鉄筋１Ｂ間を締結する鉄筋カプラーであ
る。上記鉄筋１Ａは締結しようとする一方のセグメント
（製品）Ｎの端部から鉄筋１Ｂ方に突設され、また鉄筋
１Ｂは締結しようとするもう一方のセグメント（製品）
Ｎの端部から鉄筋１Ａ方に突設されている。そして、こ
れら両方の鉄筋１Ａ，１Ｂは段違い状に位置するととも
に、これら鉄筋１Ａ，１Ｂの間には、空間が形成されて
いる。In FIG. 1, 1 (1A, 1B) is a reinforcing bar,
C is a reinforcing bar coupler for fastening the reinforcing bar 1A and the reinforcing bar 1B. The reinforcing bar 1A protrudes from the end of one segment (product) N to be fastened toward the reinforcing bar 1B, and the reinforcing bar 1B is the other segment (product) to be fastened.
N is protruded from the end to the reinforcing bar 1A. And these two rebars 1A, 1B are located in steps, and a space is formed between these rebars 1A, 1B.
【００２５】そして、上記鉄筋１Ａ，１Ｂのそれぞれの
締結しようとする端部１ａには、おねじが形成されてい
る。特に、この実施例のように鉄筋として、一般に「ね
じふし（ねじ節）鉄筋」とも呼ばれている市販の鉄筋を
使用することもできる。An external thread is formed at the end 1a of each of the reinforcing bars 1A and 1B to be fastened. In particular, as in this embodiment, a commercially-available reinforcing bar that is generally called a “screw bar (screw section) reinforcing bar” can be used as the reinforcing bar.
【００２６】ところで、上記鉄筋カプラーＣは、この実
施例では、ニップル２と、連結部材３と、袋ナット４
と、締結ナット５、および、ロックナット６から構成さ
れている。In this embodiment, the reinforcing bar coupler C comprises a nipple 2, a connecting member 3, and a cap nut 4.
, A fastening nut 5 and a lock nut 6.
【００２７】上記ニップル２は、鉄筋１に螺着する側の
第１端面２ｐに開口しためねじ孔２ａと、反対側の第２
端面２ｑに形成された部分球面（請求項１でいう「結合
手段」を構成する構成要素の一つ、また、請求項４〜７
で言う「第１の二次曲面」あるいは「第１の部分球面」
に相当）２ｂを具備する。また、前端部の外周にはおね
じ２ｃが形成されている。上記めねじ孔２ａは、上記鉄
筋１の端部１ａに形成されたおねじに螺合するためのも
のである。従って、この実施例では、市販の「ねじふし
（ねじ節）鉄筋」の「おねじ」に螺合する「めねじ孔」
に構成されている。また、上記部分球面２ｂは、この実
施例では三次曲面（請求項６，７で言う「第１の部分球
面」に相当）から構成され、この三次曲面の中心Ｏ1
は、上記めねじ孔２ａの空間部分に位置する。The nipple 2 has a screw hole 2a for opening on the first end face 2p on the side to be screwed to the reinforcing bar 1, and a second hole 2a on the opposite side.
The partial spherical surface formed on the end face 2q (one of the constituent elements constituting the “coupling means” in claim 1;
"First quadratic surface" or "first partial spherical surface"
2b). A male screw 2c is formed on the outer periphery of the front end. The female screw hole 2 a is for screwing into a male screw formed at the end 1 a of the reinforcing bar 1. Therefore, in this embodiment, a “female screw hole” to be screwed into a “male screw” of a commercially available “screw bar (screw section) reinforcing bar” is used.
Is configured. In this embodiment, the partial spherical surface 2b is composed of a cubic curved surface (corresponding to the "first partial spherical surface" in claims 6 and 7), and the center O 1 of the cubic curved surface is set.
Is located in the space of the female screw hole 2a.
【００２８】上記連結部材３は、一端に形成された鍔部
（請求項１でいう「結合手段」を構成する構成要素の一
つ）３ａとそこから延設される締結ボルト部３ｂを具備
する。この締結ボルト部３ｂの先端に位置する螺着用の
ねじ部は、鉄筋カプラーＣの一方の連結部材３Ａでは右
ねじに形成され、他方の連結部材３Ｂでは左ねじに形成
されている。また、連結部材３の、上記鍔部３ａのニッ
プル２に当接する面（基端面）には、部分曲面（請求項
１でいう「結合手段」を構成する構成要素の一つ、請求
項４〜７で言う「第２の二次曲面」あるいは「第２の部
分球面」に相当）３ｅが形成され、この実施例では三次
曲面（請求項６，７で言う「第２の部分球面」に相当）
から構成され、この三次曲面は上記中心Ｏ1 を中心とす
る。さらに、この鍔部３ａの上記締結ボルト部３ｂの基
端周囲には、部分曲面（請求項１でいう「結合手段」を
構成する構成要素の一つ、請求項４〜７で言う「第３の
二次曲面」あるいは「第３の部分球面」に相当）３ｆが
形成され、この実施例では三次曲面（請求項６，７で言
う「第３の部分球面」に相当）から構成され、この三次
曲面は上記中心Ｏ1 を中心とする。The connecting member 3 has a flange portion (one of the constituent elements constituting the "coupling means") 3a formed at one end and a fastening bolt portion 3b extending therefrom. . The threaded screw portion located at the tip of the fastening bolt portion 3b is formed as a right-hand thread in one connecting member 3A of the reinforcing bar coupler C, and formed as a left-hand thread in the other connecting member 3B. In addition, a surface (a base end surface) of the connecting member 3 that abuts on the nipple 2 of the flange portion 3a has a partially curved surface (one of the constituent elements constituting the “coupling means” in claim 1; A third-order curved surface (corresponding to a "second partial spherical surface" according to claims 6 and 7) is formed in this embodiment. )
This cubic surface is centered on the center O 1 . Further, a portion of the flange 3a around the base end of the fastening bolt 3b is a partially curved surface (one of the constituent elements of the "coupling means" in claim 1, "third" in claims 4-7. 3f) is formed. In this embodiment, a third-order curved surface (corresponding to "third partial spherical surface" in claims 6 and 7) is formed. tertiary curved surface centered on the center O 1.
【００２９】従って、上記各三次曲面は、全て中心Ｏ1
を中心とする同心状の曲面によって構成されている。Accordingly, each of the above cubic surfaces has a center O 1.
And a concentric curved surface centered at.
【００３０】そして、上記袋ナット４は、内部に上記ニ
ップル２の外周に形成されたおねじ２ｃが螺合するめね
じ４ａが形成されるとともに、その底方の部位には、上
記連結部材３の鍔部３ａを収容する空間４ｂを具備す
る。そして、この袋ナット４の底壁には、上記鍔部３ａ
の第３の三次曲面３ｆに面接触する三次曲面（請求項１
でいう「結合手段」を構成する構成要素の一つ、請求項
で言う「第４の部分曲面」に相当）４ｅが形成されてい
る。また、この三次曲面４ｅも上記中心Ｏ1 を中心とし
ている。そして、この三次曲面４ｅの中心部分には、上
記締結ボルト部３ｂの径より大きい径の貫通孔４ｃが形
成されている。この実施例では、この貫通孔４ｃは、底
方から外方にゆくにしたがって径が拡がった孔に形成さ
れている。つまり、この貫通孔４ｃは、図１に図示する
ように、側断面視において、扇形に外方（締結ナット５
方）で拡がった孔、つまり底方から外方にゆくにしたが
って径が拡がったテーパ孔に形成されている。The cap nut 4 has a female screw 4a formed therein, into which a male screw 2c formed on the outer periphery of the nipple 2 is screwed. A space 4b for accommodating the flange 3a is provided. The flange 3a is provided on the bottom wall of the cap nut 4.
A third-order curved surface that is in surface contact with the third cubic surface 3f
(Equivalent to a "fourth curved surface" in claims) 4e. Further, also centered on the center O 1 The three-dimensional curved surface 4e. A through hole 4c having a diameter larger than the diameter of the fastening bolt 3b is formed at the center of the tertiary curved surface 4e. In this embodiment, this through hole 4c is formed as a hole whose diameter increases from the bottom toward the outside. That is, as shown in FIG. 1, the through-hole 4 c has a fan-shaped outward (fastening nut 5
), That is, a tapered hole whose diameter increases from the bottom toward the outside.
【００３１】また、上記締結ナット５は、外形が六角柱
状のナットで、内部には、長手方向の中央にねじの無い
部分５ａを隔てて、左方には連結部材３Ａのねじ部に螺
合する右ねじ５ｂが形成され、また右方には連結部材３
Ｂのねじ部に螺合する左ねじ５ｃが形成されている。The fastening nut 5 is a hexagonal column-shaped nut having a threadless portion 5a at the center in the longitudinal direction, and is screwed to the thread of the connecting member 3A to the left. A right-hand screw 5b is formed.
A left-hand thread 5c that is screwed into the threaded portion B is formed.
【００３２】また、上記ロックナット６は、上記鉄筋１
の端部１ａに形成されたおねじに螺合するようめねじが
内周面に形成されている。The lock nut 6 is connected to the reinforcing bar 1.
A female screw is formed on the inner peripheral surface so as to be screwed into a male screw formed at the end 1a.
【００３３】しかして、このように構成された鉄筋カプ
ラーは、間に空間を隔てて配設された一対の鉄筋を締結
する際には、それらの鉄筋が同芯状に位置する場合は勿
論のこと、三次元空間において段違い状に位置する場合
にも、以下のように簡単に締結することができる。When the pair of reinforcing bars arranged with a space therebetween are fastened to each other, the reinforcing bar coupler constructed as described above is of course provided that the reinforcing bars are positioned concentrically. In addition, even in the case of being positioned in a three-dimensional space in a stepped manner, the fastening can be easily performed as follows.
【００３４】まず、締結しようとする鉄筋１Ａと鉄筋１
Ｂのそれぞれの端部１ａに、上記ロックナット６を螺合
させ、次に上記ニップル２を螺合させる。この際、締結
しようとする鉄筋１Ａと鉄筋１Ｂの間の寸法を配慮し
て、上記ロックナット６とニップル２の鉄筋１に対する
配設位置を決める。First, the reinforcing bar 1A to be fastened and the reinforcing bar 1
The lock nut 6 is screwed into each end 1a of B, and then the nipple 2 is screwed. At this time, an arrangement position of the lock nut 6 and the nipple 2 with respect to the reinforcing bar 1 is determined in consideration of a dimension between the reinforcing bar 1A and the reinforcing bar 1B to be fastened.
【００３５】次に、上記連結部材３の締結ボルト部３ｂ
が袋ナット４の貫通孔４ｃが突出するよう、該袋ナット
４の上記空間４ｂに連結部材３の鍔部３ａを入れ、該袋
ナット４をニップル２に螺着する。この螺着により、ニ
ップル２と袋ナット４の間に連結部材３が上記中心Ｏ1
を中心に回動自在に挟持される。Next, the fastening bolt portion 3b of the connecting member 3
The flange 3a of the connecting member 3 is inserted into the space 4b of the cap nut 4 so that the through hole 4c of the cap nut 4 projects, and the cap nut 4 is screwed to the nipple 2. By this screwing, the connecting member 3 is moved between the nipple 2 and the cap nut 4 by the center O 1.
Is rotatably held around the center.
【００３６】次に、上記対峙する一対の鉄筋１Ａ，１Ｂ
から延設される連結部材３（３Ａ，３Ｂ）のいずれか一
方（例えば連結部材３Ａ）のねじ部に上記締結ナット５
を螺着し、次に、この締結ナット５をもう一方の連結部
材（例えば連結部材３Ｂ）のねじ部に螺合させて、補強
用の斜材として使用するターンバックルの如く、締結ナ
ット５を回転させて、両方の連結部材３Ａ，３Ｂが各鉄
筋１Ａ，１Ｂを一直線状に連結する状態にする。この
際、必要に応じて、上記ロックナット６とニップル２の
鉄筋１に対する位置を調整してもよい。Next, the pair of opposed reinforcing bars 1A, 1B
The connecting nut 3 is attached to a threaded portion of one of the connecting members 3 (3A, 3B) (for example, the connecting member 3A).
Then, this fastening nut 5 is screwed into the threaded portion of the other connecting member (for example, the connecting member 3B), so that the fastening nut 5 is fastened like a turnbuckle used as a reinforcing diagonal member. By rotating, the two connecting members 3A, 3B connect the rebars 1A, 1B in a straight line. At this time, if necessary, the positions of the lock nut 6 and the nipple 2 with respect to the reinforcing bar 1 may be adjusted.
【００３７】そして、両方の連結部材３Ａ，３Ｂが各鉄
筋１Ａ，１Ｂを一直線状に連結した状態になると、ロッ
クナット６を締めて、両方の連結部材３Ａ，３Ｂを緊締
して、互いの鉄筋１Ａ，１Ｂを固定する。When the two connecting members 3A and 3B are in a state where the rebars 1A and 1B are connected in a straight line, the lock nut 6 is tightened, and the two connecting members 3A and 3B are tightened to reinforce each other. 1A and 1B are fixed.
【００３８】しかして、このように締結される鉄筋カプ
ラーによれば、同芯状は勿論段違い状の一対の鉄筋を簡
単に直線状に連結することができる。According to the reinforcing bar coupler fastened in this manner, a pair of reinforcing bars having not only concentric shapes but also steps can be easily and linearly connected.
【００３９】従って、この状態で、この締結部分にセメ
ント等を充填すれば、この部分で、引張力は勿論のこ
と、圧縮力をも円滑に伝達することが可能となる。Therefore, if cement or the like is filled in this fastening portion in this state, it is possible to smoothly transmit not only the tensile force but also the compressive force in this portion.
【００４０】しかも、締結しようとする鉄筋間の間の寸
法が種々存在しても、上記締結ナット５およびニップル
２のねじ込み程度によって、両方の連結部材３Ａ，３Ｂ
が各鉄筋１Ａ，１Ｂを一直線状に連結した状態を形成す
ることができる。In addition, even if there are various dimensions between the reinforcing bars to be fastened, depending on the degree of screwing of the fastening nut 5 and the nipple 2, both connecting members 3A, 3B
Can form a state in which the rebars 1A and 1B are connected in a straight line.
【００４１】ところで、上記実施例では、面接触する部
分を三次曲面（部分球面）で構成したが、二次曲面で構
成してもよく、かかる場合には、曲面の接線が漸次変化
する方向が締結しようとする一対の鉄筋を結ぶ方向と一
致するように、鉄筋に鉄筋カプラーを配設する必要があ
る。このように二次曲面で構成すると、製造が簡単にな
り、安価に実施することができる点で優れた構成とな
る。In the above embodiment, the surface contact portion is formed by a cubic curved surface (partially spherical surface). However, it may be formed by a quadratic curved surface. In such a case, the direction in which the tangent of the curved surface gradually changes is changed. It is necessary to dispose a reinforcing bar coupler on the reinforcing bar so as to match the direction in which the pair of reinforcing bars to be fastened is connected. Such a configuration with a quadratic surface provides an excellent configuration in that the manufacturing is simplified and it can be implemented at low cost.
【００４２】また、図２に図示するように、連結部材３
を物理的に一つの部材で構成してもよく、つまり締結ボ
ルト部３ｂの両端に一体的に鍔部３ａを形成してもよ
い。Further, as shown in FIG.
May be physically constituted by one member, that is, the flange portions 3a may be integrally formed at both ends of the fastening bolt portion 3b.
【００４３】但し、かかる場合には、予め、連結部材３
の鍔部３ａを袋ナット４の内部に収容した状態に組み立
てて１つのユニットとしておく必要がある。このため、
実際の製造では、袋ナット４に連結部材３の先端を挿通
した状態でその先端に鍛造等で鍔部を形成する必要があ
る。However, in such a case, the connecting member 3
It is necessary to assemble in a state where the flange portion 3a is accommodated inside the cap nut 4 to form one unit. For this reason,
In actual production, it is necessary to form a flange by forging or the like at the end of the connecting member 3 with the end of the connecting member 3 inserted through the cap nut 4.
【００４４】さらに、図３に図示するように、図１に図
示する実施例の場合と各三次曲面の凹凸が逆向きになる
よう形成しても、同様の機能を有する鉄筋カプラーを得
ることができることは言うまでもない。あるいは、鍔部
の部分を球体で構成し、ニップルと袋ナットをこの球体
を連結部材の貫通部分およびその周囲を除いて包囲する
ような構造であってもよい。かかる場合、図４に図示す
るように、ニップルと袋ナット部分を一体にした構成で
あってもよい。つまり、この実施例では、ニップル２の
先端部を球体を保持できる球面受座２Ａを形成し、連結
部材３の基端部に球体３Ａを形成しておき、球体３Ａを
球面受座２Ａに予め折り曲げ自在に結合させた一体状の
ものにしておき、連結部材３の先端部にねじ部３Ｂを形
成し、これらねじ部３Ｂを、締結ナット５で締結するよ
う構成しておけばよい。上述した図１に示す実施例と同
じく一方のねじ部３Ｂは左ねじに、他方のねじ部３Ｂは
右ねじにしておき、締結ナット５の一端に左ねじを他端
に右ねじを形成しておけばよい。Further, as shown in FIG. 3, even when the tertiary curved surfaces are formed so that the irregularities thereof are opposite to those in the embodiment shown in FIG. 1, a reinforcing bar coupler having the same function can be obtained. It goes without saying that you can do it. Alternatively, the flange portion may be formed of a sphere, and the nipple and the cap nut may be configured to surround the sphere except for the penetrating portion of the connecting member and its periphery. In such a case, as shown in FIG. 4, a configuration in which the nipple and the cap nut portion are integrated may be employed. In other words, in this embodiment, the tip of the nipple 2 is formed with a spherical seat 2A capable of holding a sphere, the connecting member 3 is formed with a sphere 3A, and the sphere 3A is previously placed on the spherical seat 2A. What is necessary is just to be configured so that the connecting member 3 is formed as a unitary body that is foldably connected, and a threaded portion 3B is formed at the tip of the connecting member 3, and the threaded portion 3B is fastened by the fastening nut 5. As in the embodiment shown in FIG. 1 described above, one thread 3B is left-handed and the other thread 3B is right-handed. A left-hand thread is formed at one end of the fastening nut 5 and a right-hand thread is formed at the other end. It is good.
【００４５】ところで、上記各実施例において、図１〜
図３に図示するように、ニップル２にめねじ孔側に貫通
する注入孔２ｅを形成しておき、この孔からモルタル等
を注入すると、螺着部でのガタを解消できるとともに螺
着部を固着できる点で好ましい構成となる。また、図示
しないが、袋ナットおよび締結ナットにも上記注入孔を
形成しておくと同様の効果を得る点で好ましい。In each of the above embodiments, FIGS.
As shown in FIG. 3, an injection hole 2e that penetrates the female screw hole side is formed in the nipple 2, and when mortar or the like is injected through this hole, play at the screwed portion can be eliminated and the screwed portion can be removed. This is a preferable configuration because it can be fixed. Although not shown, it is preferable that the injection hole is formed in the cap nut and the fastening nut in order to obtain the same effect.
【００４６】また、上記実施例では、各鉄筋にニップル
を螺着により一体的に取着しているが、これに変えて、
所謂「カシメ」によって、あるいは溶接によって一体的
に取着しても実施できることは言うまでもない。In the above embodiment, the nipple is integrally attached to each reinforcing bar by screwing.
It goes without saying that the present invention can be carried out by so-called "crimping" or by integrally attaching by welding.
【００４７】ところで、上述した図４とは逆に、図５に
図示するように、ニップル２の先端部２Ａを球体にし、
上記実施例で連結部材３の鍔部に相当する部位を球面受
座３Ｃで構成してもよい。By the way, as shown in FIG. 5, contrary to FIG. 4, the tip 2A of the nipple 2 is made spherical.
In the above embodiment, the portion corresponding to the flange of the connecting member 3 may be constituted by the spherical seat 3C.
【００４８】さらには、最も簡単な構成としては、図６
に図示するように、ニップル２の先端部と連結部材３の
鍔部に相当する端部とをピンＰによって折り曲げ自在に
結合してもよい。かかる具体的な構成としては、ニップ
ルの先端部あるいは連結部材の鍔部に相当するいずれか
の部分を二股状に構成し、残りの部分をこの二股部分に
挿入できるように形状にし、これらをピンで連結すれ
ば、折り曲がり自在にすることができる。Further, the simplest configuration is shown in FIG.
As shown in FIG. 2, the tip of the nipple 2 and the end corresponding to the flange of the connecting member 3 may be connected to each other by a pin P so as to be freely bent. As such a specific configuration, one of the portions corresponding to the distal end of the nipple or the flange of the connecting member is formed in a forked shape, and the remaining portion is shaped so as to be inserted into the forked portion. If they are connected with each other, they can be bent freely.
【００４９】[0049]
【発明の効果】しかして、本願発明にかかる鉄筋カプラ
ーによれば、締結しようとする一対の鉄筋が段違いであ
っても同芯上にあっても円滑に且つ迅速に締結できる。According to the rebar coupler of the present invention, the pair of rebars to be fastened can be smoothly and quickly fastened even if they are stepped or coaxial.
【００５０】そして、この鉄筋カプラーを使用して連結
すると、一直線状に剛に連結（締結）できるため、連結
部分において引張力は勿論のこと圧縮力をも円滑に伝達
することができる。When the rebar coupler is used for connection, rigid connection (fastening) can be performed in a straight line, so that not only tensile force but also compressive force can be transmitted smoothly at the connection portion.
【図１】 本発明の一実施例にかかる鉄筋カプラーの構
成を示す要部を部分的に断面した全体図である。FIG. 1 is a partial cross-sectional view of a main part showing a configuration of a reinforcing bar coupler according to an embodiment of the present invention.
【図２】 図１とは別の実施例にかかる鉄筋カプラーの
構成を示す要部を部分的に断面した全体図である。FIG. 2 is an overall view in which a main part showing a configuration of a reinforcing bar coupler according to another embodiment different from FIG. 1 is partially sectioned.
【図３】 図１，図２とは別の実施例にかかる鉄筋カプ
ラーの構成を示す要部を部分的に断面した全体図であ
る。FIG. 3 is an overall view in which a main part showing a configuration of a reinforcing bar coupler according to another embodiment different from FIGS. 1 and 2 is partially sectioned;
【図４】 図１〜図３とは、連結部材とニップルとの連
結部分の構成が異なる別の１実施例にかかる鉄筋カプラ
ーの構成を示す要部を部分的に断面した全体図である。FIGS. 1 to 3 are whole cross-sectional views partially showing a main part of a configuration of a reinforcing bar coupler according to another embodiment in which the configuration of a connecting portion between a connecting member and a nipple is different.
【図５】 図１〜図３とは、連結部材とニップルとの連
結部分の構成が異なる別の他の実施例にかかる鉄筋カプ
ラーの構成を示す要部を部分的に断面した全体図であ
る。FIGS. 1 to 3 are partial cross-sectional views of a main part showing a configuration of a reinforcing bar coupler according to another embodiment having a different configuration of a connecting portion between a connecting member and a nipple. .
【図６】 図１〜図３とは、連結部材とニップルとの連
結部分の構成が異なる別の他の実施例にかかる鉄筋カプ
ラーの構成を示す要部を部分的に断面した全体図であ
る。FIGS. 1 to 3 are partial cross-sectional views of a main part showing a configuration of a reinforcing bar coupler according to another embodiment in which the configuration of a coupling portion between a coupling member and a nipple is different. .
【図７】 鉄筋が突設したセグメント相互を締結するこ
とによって構成したトンネルの断面を示す図ある。FIG. 7 is a diagram showing a cross section of a tunnel formed by fastening segments each having a protruding reinforcing bar.
【図８】 図７に示すセグメントの締結部分を拡大して
示す斜視図である。8 is an enlarged perspective view showing a fastening portion of the segment shown in FIG. 7;
Ｃ…鉄筋カプラー １（１Ａ，１Ｂ）…鉄筋 ２…ニップル ３…連結部材 ３ａ…鍔部（結合手段を構成する一つの構成要素） ３ｂ…締結ボルト部（結合手段を構成する一つの構成要
素） ４…袋ナット（結合手段を構成する一つの構成要素）C ... Reinforcing bar coupler 1 (1A, 1B) ... Rebar 2 ... Nipple 3 ... Connecting member 3a ... Flange (one component constituting the coupling means) 3b ... Fastening bolt part (one component constituting the coupling means) 4. Cap nut (one component constituting the connecting means)
Claims (9)
鉄筋を締結するための鉄筋カプラーであって、 このカプラーが、上記一対の各鉄筋の端部に一端が一体
的に取着された各ニップルと、基端部が上記ニップルと
結合手段を介して屈折自在に結合され螺着用のねじ部を
備えた締結ボルト部を先端に有する一対の連結部材と、
この一対の連結部材の締結ボルト部間を一体に螺着する
締結ナットを具備し、上記一対の連結部材のうちの一方
の連結部材のねじ部が右ねじで構成されるとともに、他
方の連結部材のねじ部が左ねじで構成され、且つ、上記
締結ナットの一端部に右ねじが他端部に左ねじが形成さ
れ、上記結合手段によってニップルと連結部材との各接
続部分が折り曲げ自在に構成されていることを特徴とす
る。1. A reinforcing bar coupler for fastening a pair of reinforcing bars projecting from each product with a space therebetween, the coupler being integrally attached at one end to an end of each of the pair of reinforcing bars. Each of the nipples, a pair of connecting members having a fastening bolt portion having a screw portion for screwing the base end portion to be flexibly coupled via the nipple and the coupling means at the distal end,
A fastening nut for integrally screwing between fastening bolt portions of the pair of connecting members is provided, and a threaded portion of one of the pair of connecting members is formed of a right-hand thread, and the other connecting member is Is formed with a left-hand thread, a right-hand thread is formed at one end of the fastening nut, and a left-hand thread is formed at the other end, and each connecting portion between the nipple and the connecting member is configured to be bendable by the connecting means. It is characterized by having been done.
球面を折り曲げ自在に且つ引張および圧縮方向に拘束す
るよう保持する球面座で構成されていることを特徴とす
る請求項１記載の鉄筋カプラー。2. The reinforcing bar according to claim 1, wherein the coupling means comprises a partial spherical surface and a spherical seat for holding the partial spherical surface so as to be freely bent and restrained in tension and compression directions. coupler.
構成されていることを特徴とする請求項１記載の鉄筋カ
プラー。3. The reinforcing bar coupler according to claim 1, wherein said connecting means is constituted by a pin joint structure.
鉄筋を締結するための鉄筋カプラーであって、 このカプラーが、上記一対の各鉄筋の端部に一体的に取
着され外周におねじが螺設された各ニップルと、両端に
鍔部とこれらの鍔部間を連結する締結ボルト部を有する
一つの連結部材と、上記ニップルのおねじに螺合するめ
ねじを内周に備えるとともに先端に上記連結部材の径よ
り大きい貫通孔とその後方に該連結部材の鍔部を収容す
る空間を有して、該ニップル部材との間に上記連結部材
の各鍔部をそれぞれ保持する各袋ナットとを具備し、且
つ、上記ニップルの先端に第１の二次曲面が形成される
とともに、上記連結部材の各鍔部の基端面が上記第１の
二次曲面に面接触する第２の二次曲面が形成され、該各
鍔部の締結ボルト部が取着されている周部に上記第１の
二次曲面と同じ向きに第３の二次曲面が形成され、又、
上記袋ナットの貫通孔の内方の周囲に第３の二次曲面に
面接触する第４の二次曲面が形成されることによって、
上記各二次曲面の向きに連結部材の締結ボルト部側が自
在に傾斜して、一対の鉄筋が直線的に締結できることを
特徴とする鉄筋カプラー。4. A reinforcing bar coupler for fastening a pair of reinforcing bars projecting from each product with a space therebetween, wherein the coupler is integrally attached to an end of each of the pair of reinforcing bars. Each nipple on which a male screw is screwed, one connecting member having a flange at both ends and a fastening bolt part connecting these flanges, and a female screw screwed into the external thread of the nipple are provided on the inner periphery. At the tip, a through hole larger than the diameter of the connecting member is provided at the tip and a space for accommodating the flange of the connecting member is provided behind the through hole, and each flange of the connecting member is held between the nipple member and the nipple member. A first secondary curved surface is formed at the tip of the nipple, and a base end surface of each flange of the connecting member is in surface contact with the first secondary curved surface. 2 secondary curved surfaces are formed, and the fastening bolts of each flange are attached. Is a third quadric surface in the same direction as said first secondary curved peripheral portion and is formed, also,
By forming a fourth secondary curved surface that is in surface contact with the third secondary curved surface around the inside of the through hole of the cap nut,
A reinforcing bar coupler characterized in that the fastening bolt portion side of the connecting member is freely inclined in the direction of each of the secondary curved surfaces so that the pair of reinforcing bars can be linearly fastened.
鉄筋を締結するための鉄筋カプラーであって、 このカプラーが、上記一対の各鉄筋の端部に一体的に取
着され外周におねじが螺設された各ニップルと、基端部
に鍔部とこの鍔部から先端側に延設され先端に螺着用の
ねじ部を備えた締結ボルト部を有する一対の連結部材
と、上記ニップルのおねじに螺合するめねじを内周に備
えるとともに先端に上記連結部材の径より大きい貫通孔
とその後方に該連結部材の鍔部を収容する空間を有し
て、該ニップル部材との間に上記連結部材の鍔部を保持
する各袋ナットと、上記一対の連結部材の端部を螺着す
る締結ナットとを具備し、且つ、上記ニップルの先端に
第１の二次曲面が形成されるとともに、上記連結部材の
鍔部の基端面が上記第１の二次曲面に面接触する第２の
二次曲面が形成され、該鍔部の締結ボルト部が取着され
ている周部に上記第１の二次曲面と同じ向きに第３の二
次曲面が形成され、又、上記袋ナットの貫通孔の内方の
周囲に第３の二次曲面に面接触する第４の二次曲面が形
成されることによって、上記各二次曲面の向きに連結部
材の締結ボルト部が自在に傾斜して、一対の鉄筋が直線
的に締結できることを特徴とする鉄筋カプラー。5. A reinforcing bar coupler for fastening a pair of reinforcing bars projecting from each product with a space therebetween, wherein the coupler is integrally attached to an end portion of each of the pair of reinforcing bars and has an outer periphery. Each nipple threaded with a male screw, a pair of connecting members having a flange portion at the base end and a fastening bolt portion extending from the flange portion to the distal end side and having a screw portion for screwing at the distal end, A female screw is provided on the inner periphery to be screwed to the male screw of the nipple, and a distal end has a through hole larger than the diameter of the connecting member and a space behind the connecting member to accommodate a flange of the connecting member. Between each cap nut holding the flange of the connecting member, and a fastening nut for screwing the ends of the pair of connecting members, and a first secondary curved surface at the tip of the nipple And the base end face of the flange of the connecting member is connected to the first secondary A second secondary curved surface is formed in surface contact with the surface, and a third secondary curved surface is formed in the same direction as the first secondary curved surface on the periphery of the flange where the fastening bolt portion is attached. Also, by forming a fourth quadratic surface that comes into surface contact with the third quadratic surface around the inside of the through hole of the cap nut, the connecting member is oriented in the direction of each of the quadratic surfaces. A reinforcing bar coupler characterized in that a fastening bolt portion is freely tilted so that a pair of reinforcing bars can be linearly fastened.
鉄筋を締結するための鉄筋カプラーであって、 このカプラーが、上記一対の各鉄筋の端部に一体的に取
着され外周におねじが螺設された各ニップルと、両端に
鍔部とこれらの鍔部間を連結する締結ボルト部を有する
連結部材と、上記ニップルのおねじに螺合するめねじを
内周に備えるとともに先端に上記連結部材の径より大き
い貫通孔とその後方に該連結部材の鍔部を収容する空間
を有して、該ニップル部材との間に上記連結部材の各鍔
部をそれぞれ保持する各袋ナットとを具備し、且つ、上
記ニップルの先端に第１の部分球面が形成されるととも
に、上記連結部材の各鍔部の基端面が上記第１の部分球
面に面接触する第２の部分球面が形成され、該各鍔部の
締結ボルト部が取着されている周部に上記第１の部分球
面と同じ向きに第３の部分球面が形成され、又、上記袋
ナットの貫通孔の内方の周囲に第３の部分球面に面接触
する第４の部分球面が形成されることによって、上記連
結部材が自在に傾斜して、一対の鉄筋が直線的に締結で
きることを特徴とする鉄筋カプラー。6. A reinforcing bar coupler for fastening a pair of reinforcing bars projecting from each product with a space therebetween, wherein the coupler is integrally attached to an end of each of the pair of reinforcing bars. Each nipple screwed with a male screw, a connecting member having a flange at both ends and a fastening bolt portion connecting these flanges, and a female screw screwed into the external thread of the nipple are provided on the inner periphery. Each bag having a through hole larger than the diameter of the connecting member at the tip and a space for accommodating a flange of the connecting member behind the through hole, and holding each flange of the connecting member between the nipple member and the bag. A second partial spherical surface having a nut, wherein a first partial spherical surface is formed at a tip of the nipple, and a base end surface of each flange of the connecting member is in surface contact with the first partial spherical surface. Are formed, and the fastening bolts of the respective flanges are attached. A third partial spherical surface is formed on the peripheral portion in the same direction as the first partial spherical surface, and a fourth portion which comes into surface contact with the third partial spherical surface around the inside of the through hole of the cap nut. A reinforcing bar coupler characterized in that the connecting member is inclined freely by forming a spherical surface, so that a pair of reinforcing bars can be linearly fastened.
鉄筋を締結するための鉄筋カプラーであって、 このカプラーが、上記一対の各鉄筋の端部に一体的に取
着され外周におねじが螺設された各ニップルと、基端部
に鍔部とこの鍔部から先端側に延設され先端に螺着用の
ねじ部を備えた締結ボルト部を有する一対の連結部材
と、上記ニップルのおねじに螺合するめねじを内周に備
えるとともに先端に上記連結部材の径より大きい貫通孔
とその後方に該連結部材の鍔部を収容する空間を有し
て、該ニップル部材との間に上記連結部材の鍔部を保持
する各袋ナットと、上記一対の連結部材の端部を螺着す
る締結ナットとを具備し、且つ、上記ニップルの先端に
第１の部分球面が形成されるとともに、上記連結部材の
鍔部の基端面が上記第１の部分球面に面接触する第２の
部分球面が形成され、該鍔部の締結ボルト部が取着され
ている周部に上記第１の部分球面と同じ向きに第３の部
分球面が形成され、又、上記袋ナットの貫通孔の内方の
周囲に第３の部分球面に面接触する第４の部分球面が形
成されることによって、上記連結部材の締結ボルト部が
自在に傾斜して、一対の鉄筋が直線的に締結できること
を特徴とする鉄筋カプラー。7. A reinforcing bar coupler for fastening a pair of reinforcing bars protruding from each product with a space therebetween, wherein the coupler is integrally attached to an end of each of the pair of reinforcing bars and has an outer periphery. Each nipple threaded with a male screw, a pair of connecting members having a flange portion at the base end and a fastening bolt portion extending from the flange portion to the distal end side and having a screw portion for screwing at the distal end, A female screw is provided on the inner periphery to be screwed to the male screw of the nipple, and a distal end has a through hole larger than the diameter of the connecting member and a space behind the connecting member to accommodate a flange of the connecting member. A pair of nuts for holding the flange of the connecting member, and a fastening nut for screwing the ends of the pair of connecting members, and a first partial spherical surface is formed at the tip of the nipple. And the base end surface of the flange of the connecting member is the first portion. A second partial spherical surface is formed in surface contact with the surface, and a third partial spherical surface is formed in the same direction as the first partial spherical surface on the periphery of the flange to which the fastening bolt portion is attached, and A fourth partial spherical surface that is in surface contact with the third partial spherical surface is formed around the inner side of the through hole of the cap nut, so that the fastening bolt portion of the connecting member is freely inclined, and A rebar coupler characterized in that rebars can be linearly fastened.
孔に形成されていることを特徴とする請求項４〜７のい
ずれか１の項に記載の鉄筋カプラー。8. The reinforcing bar coupler according to claim 4, wherein a through hole of the cap nut is formed in a hole extending outward.
のめねじ孔が形成されるとともに、各鉄筋の端部にこの
めねじ孔に螺合するおねじが形成されることによって、
ニップルが鉄筋に螺着されていることを特徴とする請求
項１〜８のいずれか１の項に記載の鉄筋カプラー。9. A bottomed female screw hole opened on the base end face side of the nipple and a male screw screwed into the female screw hole is formed at an end of each rebar.
The reinforcing bar coupler according to any one of claims 1 to 8, wherein the nipple is screwed to the reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13803297A JPH10325213A (en) | 1997-05-28 | 1997-05-28 | Reinforced coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13803297A JPH10325213A (en) | 1997-05-28 | 1997-05-28 | Reinforced coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10325213A true JPH10325213A (en) | 1998-12-08 |
Family
ID=15212457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13803297A Pending JPH10325213A (en) | 1997-05-28 | 1997-05-28 | Reinforced coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10325213A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717072B1 (en) * | 2006-04-28 | 2007-05-10 | 주식회사 용마엔지니어링 | Connect apparatus for a band steel reinforcement |
| KR101025489B1 (en) | 2008-07-14 | 2011-04-04 | 박정식 | Steel reinforcing coupler of adjustable an angle |
| CN110685407A (en) * | 2019-11-02 | 2020-01-14 | 房健 | Adjustable eccentric steel bar connector |
| KR102146219B1 (en) * | 2020-01-22 | 2020-08-19 | 박진감 | Fastener with Ball Joint for Connecting Blocks or Segments |
| KR102161411B1 (en) * | 2020-05-19 | 2020-09-29 | 박진감 | Fixing Structure of Blocks or Segments with Ball Joint Fastener |
| KR20220023669A (en) * | 2020-08-21 | 2022-03-02 | 에스피씨이 주식회사 | Reinforced connection system for precast concrete column and girder |
-
1997
- 1997-05-28 JP JP13803297A patent/JPH10325213A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717072B1 (en) * | 2006-04-28 | 2007-05-10 | 주식회사 용마엔지니어링 | Connect apparatus for a band steel reinforcement |
| KR101025489B1 (en) | 2008-07-14 | 2011-04-04 | 박정식 | Steel reinforcing coupler of adjustable an angle |
| CN110685407A (en) * | 2019-11-02 | 2020-01-14 | 房健 | Adjustable eccentric steel bar connector |
| KR102146219B1 (en) * | 2020-01-22 | 2020-08-19 | 박진감 | Fastener with Ball Joint for Connecting Blocks or Segments |
| KR102161411B1 (en) * | 2020-05-19 | 2020-09-29 | 박진감 | Fixing Structure of Blocks or Segments with Ball Joint Fastener |
| KR20220023669A (en) * | 2020-08-21 | 2022-03-02 | 에스피씨이 주식회사 | Reinforced connection system for precast concrete column and girder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01158158A (en) | Connector for concrete-reinforced bar | |
| JPH10325213A (en) | Reinforced coupler | |
| JP2918396B2 (en) | Connector | |
| KR100411242B1 (en) | Universal nut type steel-frame coupling device | |
| KR102189193B1 (en) | A coupler for connecting reinforcing bar | |
| JPH0579799B2 (en) | ||
| JP3544917B2 (en) | Concrete block connection structure | |
| JPH1122108A (en) | Reinforcement coupling device and foundation work method using the same | |
| KR20140054691A (en) | Coupling apparatus of threaded reinforcing bar | |
| KR960006890Y1 (en) | Steel connector | |
| JPH085216Y2 (en) | PC steel rod coupling coupler | |
| JP2003055963A (en) | Pile head structure and pile head metal fitting | |
| JP2835932B2 (en) | Rebar connection device | |
| JPH06185140A (en) | Steel beam joining structure with reinforced concrete earthquake resisting wall | |
| JP2000226905A (en) | Connection method of ribbed steel bar | |
| JP4236780B2 (en) | Method for forming deformed reinforcing bar fixing structure | |
| JP2002227342A (en) | Reinforcement connecting device | |
| JP2001055812A (en) | Attachment for screw joint | |
| KR19980068522U (en) | Rebar connection bracket | |
| JPH11264242A (en) | Connecting metal fitting of bar-shaped material | |
| KR100406140B1 (en) | Taper thread coupler | |
| JP3554674B2 (en) | Segment piece-to-piece joint and segment using the same | |
| JPH072771Y2 (en) | Rotating jig for PC steel rod | |
| KR20040030757A (en) | Nut type coupler with inner rim for steel reinforcing | |
| JPH0715911U (en) | Reinforcing bar fittings |