JP3272563B2 - Rebar connection device and rebar connection method - Google Patents
Rebar connection device and rebar connection methodInfo
- Publication number
- JP3272563B2 JP3272563B2 JP08504995A JP8504995A JP3272563B2 JP 3272563 B2 JP3272563 B2 JP 3272563B2 JP 08504995 A JP08504995 A JP 08504995A JP 8504995 A JP8504995 A JP 8504995A JP 3272563 B2 JP3272563 B2 JP 3272563B2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- rebar
- tip
- locking
- 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.)
- Expired - Fee Related
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築構造物等において
用いられている鉄筋を連結するための鉄筋連結装置及び
鉄筋連結方法に関し、特に、表面に節形状を構成させて
なるいわゆる異形鉄筋の連結装置及び連結方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rebar connecting apparatus and a rebar connecting method for connecting rebar used in a building structure or the like, and more particularly to a so-called deformed rebar having a knotted surface. The present invention relates to a connecting device and a connecting method.
【０００２】[0002]
【従来の技術】従来より、鉄筋連結装置にあっては、接
続すべき鉄筋の接続端部に設けた雄ねじに、内周に雌ね
じを形成したスリーブを螺合するとともに、この雄ねじ
と雌ねじとの間隙にグラウト剤を圧入充填して硬化せし
めることにより、接続部分に強度及び剛性を有する構成
としたねじ継手（実公昭５２−７９４３号）があった。
また、異形鉄筋の表面に設ける節形状を雄ねじ状に構成
し、グラウト剤がスリーブ両端から漏れるのを防ぐため
のシール部が設けられている連結装置（実公平４−２８
９６８号）があった。さらに、外側表面が傾斜した楔形
の把持部材によって接合すべき２本の異形鉄筋の端部を
把持させるとともに、楔形の外側表面がスリーブの内側
に密着させて異形鉄筋の端部にスリーブを接続させ、こ
のスリーブ外周に設けた雄ねじと接合部材に設けた雌ね
じを螺合させることによって、２本の異形鉄筋を接合す
る接合装置（実開平５−８９６４２号）があった。2. Description of the Related Art Conventionally, in a rebar connecting device, a sleeve having a female screw formed on the inner periphery thereof is screwed to a male screw provided at a connection end of a reinforcing bar to be connected, and the male screw and the female screw are connected to each other. There has been a threaded joint (Japanese Utility Model Publication No. 52-7943) in which a grout agent is press-filled into the gap and hardened, so that the connection portion has strength and rigidity.
Also, a connecting device (actually 4-28) in which the knot shape provided on the surface of the deformed reinforcing bar is formed in a male screw shape and a seal portion is provided to prevent the grout agent from leaking from both ends of the sleeve.
No. 968). Further, the ends of the two deformed reinforcing bars to be joined are gripped by the wedge-shaped gripping members whose outer surfaces are inclined, and the wedge-shaped outer surface is brought into close contact with the inside of the sleeve to connect the sleeve to the end of the deformed reinforcing bar. There has been a joining device (Japanese Utility Model Laid-Open No. 5-89642) for joining two deformed reinforcing bars by screwing a male screw provided on the outer periphery of the sleeve and a female screw provided on the joining member.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、実公昭
５２−７９４３号のねじ継手は、鉄筋に雄ねじを設ける
構成となっており、一般的な異形鉄筋に雄ねじを設ける
とすれば、ねじ溝の部分だけ断面積が縮小することとな
り、強度を著しく低下させるものであった。また、丸棒
鉄筋の表面に雄ねじを設ける構成であるため、異形鉄筋
には採用できないものであった。実公平４−２８９６８
号も同様に鉄筋表面に雄ねじを設ける構成を前提とする
ものであり、また、この雄ねじは異形鉄筋の表面に設け
る節形状そのものによって構成させるものであって、通
常の節形状を有する異形鉄筋を連結させることができな
いものであった。しかも、上記の双方は、鉄筋端部にス
リーブを取り付けた後に、当該スリーブ内にグラウト剤
又は接着剤を注入してなる構成であるため、スリーブの
外方から内部に貫通する注入孔を設けなければならず、
鉄筋及びスリーブに荷重が作用するとき、この注入孔に
応力が集中して強度を低下させるものであった。また、
鉄筋にスリーブを取り付けた後にグラウト剤の注入を失
念することが予想されるものであった。一方、実開平５
−８９６４２号は、雄ねじを設けることなく異形鉄筋を
接合することができるように設けられたものであるが、
異形鉄筋の節形状を除去するために、接合すべき鉄筋の
端部表面に浅いねじ溝を設けるような加工を施さなけら
ばならず、予め工場において、又は、必要に応じて工事
現場において、接合すべき部分には必ずこのような加工
をしなければならないために、非常に煩瑣なものであっ
た。However, the threaded joint disclosed in Japanese Utility Model Publication No. 52-7943 has a structure in which male threads are provided on a reinforcing bar. Only the cross-sectional area was reduced, and the strength was significantly reduced. In addition, since a male screw is provided on the surface of the round bar, it cannot be used for deformed bars. 4-28968
No. also presupposes that a male screw is provided on the surface of the reinforcing bar, and this male screw is constituted by the knot shape itself provided on the surface of the deformed reinforcing bar. It could not be linked. In addition, since both of the above configurations are such that a grout agent or an adhesive is injected into the sleeve after the sleeve is attached to the end of the reinforcing bar, an injection hole penetrating from the outside to the inside of the sleeve must be provided. Must
When a load is applied to the reinforcing bar and the sleeve, stress concentrates on the injection hole to reduce the strength. Also,
It was expected that grouting would be forgotten after the sleeve was attached to the rebar. On the other hand,
-89642 is provided so that deformed reinforcing bars can be joined without providing external threads.
In order to remove the knot shape of the deformed reinforcing bar, it is necessary to perform processing such as providing a shallow thread groove on the end surface of the reinforcing bar to be joined, at a factory in advance, or at a construction site if necessary, Since such a process must be performed on a part to be joined, it is very complicated.
【０００４】本発明は、上記諸点にかんがみ、節形状を
有する異形鉄筋をそのままの状態で使用できるようにす
ることによって、容易に鉄筋を連結でき、また、強度を
低下させずに鉄筋を連結させることのできる鉄筋連結装
置及び連結方法を提供することを目的とする。[0004] In view of the above points, the present invention makes it possible to easily connect rebars by using a deformed rebar having a node shape as it is, and to connect rebars without reducing strength. It is an object of the present invention to provide a rebar connection device and a connection method that can be used.
【０００５】[0005]
【課題を解決するための手段】本発明の鉄筋連結装置
は、両端付近表面に雄ねじが刻設され、連結すべき鉄筋
の先端が十分な間隙を有して遊嵌できる嵌入孔が両端か
ら軸線方向に沿って設けられた連結部材と、鉄筋が緩や
かに挿入できる略円筒状の一端部に上記連結部材に設け
られた雄ねじに螺合する雌ねじが刻設され、内径が他端
部へ向けて小さくなる勾配部を中央付近に設けられた２
つのスリーブと、このスリーブの勾配部内において鉄筋
を係止する係止部材とからなる鉄筋連結部であって、上
記連結部材は、その両端が中央部よりも径を大きく構成
された両端部を有し、この両端部の表面全体に雄ねじが
刻設され、該両端部の軸線方向の長さは、その内部に設
けられる嵌入孔の深さよりも長く設けられ、上記係止部
材は、２つの係止片からなり、両係止片は、その内側周
方向に突出し、かつ該係止片により連結すべき鉄筋を係
止させるとき該鉄筋表面に当接する突出部を有し、上記
スリーブは、その中央付近に設けられる勾配部と雌ねじ
が刻設される部分との間に、上記雌ねじのネジ溝径とほ
ぼ同じ径の間隙部が設けられ、該スリーブを上記連結部
材に螺合させつつ進行させるとき、該連結部材の先端を
上記係止部材に当接させつつ上記空隙部付近まで移動し
て、該係止部材を上記勾配部に押しつけ、上記連結部材
の嵌入孔内に充填したグラウト剤を各部材間に浸透させ
てなることを特徴とする鉄筋連結装置を要旨とする。According to the rebar connecting device of the present invention, male threads are engraved on the surfaces near both ends , and a fitting hole in which the tip of the rebar to be connected has a sufficient clearance and can be loosely fitted is formed from the axial line from both ends. A connecting member provided along the direction, a female screw screwed into a male screw provided on the connecting member is engraved at one end of a substantially cylindrical shape into which the rebar can be loosely inserted, and the inner diameter is directed toward the other end. The slope part that becomes smaller is provided near the center.
And One of the sleeve, a reinforcing bar connection part comprising a locking member for locking the reinforcing bar in the gradient portion of the sleeve, the upper
The connecting member has a larger diameter at both ends than at the center.
Male screw on the entire surface of both ends.
The length in the axial direction of the both ends is set in the inside.
The locking member is provided with a length longer than the depth of the fitting hole to be inserted, and the locking member is composed of two locking pieces , and both locking pieces protrude in an inner circumferential direction thereof and form a reinforcing bar to be connected by the locking pieces. Person in charge
Having a protruding portion that comes into contact with the surface of the rebar when being stopped,
The sleeve has a sloping part and female screw near the center.
Between the thread groove diameter of the female screw and the part where the
A gap having the same diameter as that of the connecting portion is provided.
When proceeding while screwing into the material, the tip of the connecting member
Move to the vicinity of the gap while contacting the locking member
The rebar connection device is characterized in that the locking member is pressed against the inclined portion, and the grout filled in the fitting hole of the connection member penetrates between the members.
【０００６】上記連結装置を使用した連結方法は、連結
すべき２本の鉄筋のそれぞれに、雌ねじを刻設した側を
鉄筋先端に向けてスリーブを嵌挿し、両鉄筋の先端付近
において、該鉄筋先端が２つの係止片の該鉄筋先端側端
部から該鉄筋先端までの長さを上記スリーブの雄ねじの
長さよりも短くなるように、上記２つの係止片の突出部
を該鉄筋に当接させて係止部材による係止をし、この状
態でスリーブを鉄筋の先端方向に移動させて、上記係止
部材の外表面にそれぞれスリーブの勾配部を当接させる
とともに、上記鉄筋の先端が上記スリーブの連結部材の
両端に設けられた嵌入孔内にグラウト剤をそれぞれ充填
したのち、この嵌入孔内に１本ずつ鉄筋先端を嵌入させ
つつスリーブの雌ねじに連結部材の雄ねじを螺合させ、
上記螺合を進行させて連結部材の先端を係止部材に当接
させることによって係止部材をスリーブに固定すること
を特徴とする請求項１記載の鉄筋連結装置を使用する鉄
筋連結方法を要旨とする。In the connecting method using the above connecting device, a sleeve is inserted into each of two reinforcing bars to be connected, with the side on which the female screw is engraved facing the leading end of the reinforcing bar, and the vicinity of the leading end of both reinforcing bars.
, The reinforcing bar tip is an end of the locking bar on the side of the reinforcing bar.
The length from the section to the tip of the rebar is
The protrusions of the two locking pieces are brought into contact with the rebar so as to be shorter than the length, and the locking is performed by the locking member. In this state, the sleeve is moved toward the tip of the rebar, and After making the slope portion of the sleeve abut against the outer surface of the stop member, the tip of the rebar fills the grout agent into the fitting holes provided at both ends of the connecting member of the sleeve, and then into the fitting holes. The male screw of the connecting member is screwed into the female screw of the sleeve while fitting the tip of the reinforcing bar one by one.
Iron rod connecting method using the iron rod connecting apparatus according to claim 1, wherein the benzalkonium to secure the locking member to the sleeve by contact with the distal end of the connecting member is allowed to proceed the engagement with the locking member Is the gist.
【０００７】また、本発明の鉄筋連結方法は、連結すべ
き鉄筋を連結部材を介して連結する鉄筋連結方法におい
て、鉄筋と連結部材とをグラウト剤で硬化せしめること
によって、鉄筋と連結部材とを直接的に連結するととも
に、鉄筋の一部を強固に挟み、かつ、グラウト剤の硬化
によって鉄筋表面における位置を一定にする挟持部分に
密着するスリーブが、上記連結部材と螺合することによ
って鉄筋と連結部材とを間接的に連結してなることを特
徴とする鉄筋連結方法を要旨とする。Further, according to the rebar connecting method of the present invention, in the rebar connecting method in which rebars to be connected are connected via a connecting member, the rebar and the connecting member are hardened with a grout agent to connect the rebar and the connecting member. While directly connecting, the sleeve tightly sandwiches a part of the reinforcing bar, and is tightly attached to the holding portion that keeps the position on the reinforcing bar surface constant by curing of the grout agent, and is screwed with the above-mentioned connecting member to form the reinforcing bar and the reinforcing bar. The gist of the present invention is a method of connecting a reinforcing bar, which is indirectly connected to a connecting member.
【０００８】[0008]
【作用】上記のような構成にすれば、鉄筋連結装置につ
いては、連結すべき鉄筋を加工することがなく、しか
も、グラウト剤を注入するための注入孔を連結部材に設
ける必要がないので、引張荷重が作用したときに応力集
中する部分がなく強度を維持することができる。また、
この連結装置を使用する鉄筋連結方法では、鉄筋を係止
させた係止部材を、連結部材とスリーブとで挟むように
することにより、連結すべき鉄筋は、円筒状のスリーブ
の中心に一致しながら連結部材の嵌入孔内へ嵌入させる
ことができる。即ち、連結部材の嵌入孔の中心とその内
に嵌入された鉄筋の中心との位置を注意する必要がない
ので、作業が極めて簡便となる。さらに、連結部材とス
リーブとを螺合させる前に、連結部材の嵌入孔内にグラ
ウト剤を充填しておけば、鉄筋の嵌入に伴って、このグ
ラウト剤が徐々に嵌入孔から外方へ溢れ出し、この溢れ
たグラウト剤が各構成部材間に浸透するので、連結部材
とスリーブとを螺合させた後に、グラウト剤を注入する
必要がなく、よって、このグラウト剤の注入を失念する
ことなどを未然に防止することができる。According to the above construction, the reinforcing-bar connecting device does not need to process the reinforcing bar to be connected, and it is not necessary to provide an injection hole for injecting the grout in the connecting member. There is no portion where stress concentrates when a tensile load is applied, and strength can be maintained. Also,
In the reinforcing bar connecting method using this connecting device, the reinforcing member to be connected is aligned with the center of the cylindrical sleeve by holding the locking member holding the reinforcing bar between the connecting member and the sleeve. It is possible to fit into the fitting hole of the connecting member. That is, since it is not necessary to pay attention to the position of the center of the insertion hole of the connecting member and the center of the reinforcing bar inserted therein, the operation becomes extremely simple. Furthermore, if the grouting agent is filled in the fitting hole of the connecting member before screwing the connecting member and the sleeve, the grout gradually overflows from the fitting hole with the rebar. Since the overflowing grout agent penetrates between the constituent members, there is no need to inject the grout agent after screwing the connecting member and the sleeve, so that the grout agent injection is forgotten. Can be prevented beforehand.
【０００９】もう一方の連結方法については、鉄筋と連
結部材とを直接に連結するほか、鉄筋と係止部材とが接
続するようにしたうえで、この係止部材と連結部材とを
スリーブを介するようにして連結することによって、鉄
筋と連結部材とが間接的に連結することとなるので、鉄
筋と連結部材とを直接的に連結しただけのものに比較し
て、連結状態がはるかに強固なものとなる。また、グラ
ウト剤のみを頼るものでなく、係止部材による機械的な
連結をも副次的に作用させることができるので安心でき
るものである。In the other connecting method, in addition to directly connecting the reinforcing bar and the connecting member, the reinforcing bar and the locking member are connected, and the locking member and the connecting member are connected via a sleeve. By connecting in such a manner, the reinforcing bar and the connecting member are indirectly connected, so that the connecting state is much stronger than that in which the reinforcing bar and the connecting member are simply connected directly. It will be. In addition, it is not necessary to rely solely on the grouting agent, and it is also safe to use the mechanical connection by the locking member as a secondary action.
【００１０】[0010]
【実施例】以下、本発明の連結装置の実施例を図１ない
し図４に基づいて説明する。本実施例は、図１に示すよ
うに、異形鉄筋（以下、実施例の説明においては単に鉄
筋という）１，２を連結するための装置であって、この
鉄筋１，２は、その表面にそれぞれ節形状３，４が構成
されたものである。本実施例の装置は、連結部材１０
と、この両端に設けられた雄ねじに螺合するスリーブ２
０と、スリーブ２０内において鉄筋１，２を係止する係
止部材３０とによって構成されており、係止部材３０の
内側が鉄筋１，２の表面の節形状３，４を避けて鉄筋本
体（鉄筋の節形状がない部分）の表面に当接でき、この
係止部材３０にスリーブ２０が密着して鉄筋１，２とス
リーブ２０とが連結され、さらに、このスリーブ２０と
連結部材１０とが螺合して連結される。各部材と鉄筋と
の間隙にはグラウト剤（図中の細かな点を付した部分）
が充填されている。このグラウト剤の充填は、外部から
注入されるのではなく、連結部材１０の両端に設けられ
た嵌入孔１１，１２内に予め充填しておいたものが、鉄
筋１，２の両端が嵌入することによって、この嵌入孔１
１，１２から溢れ出し、結果的に各間隙に浸透するもの
である。従って、鉄筋１，２の両端と連結部材１０と
は、嵌入孔１１，１２の内部でグラウト剤によって直接
的に連結される。また、スリーブ２０と鉄筋１，２との
間隙にもグラウト剤が浸透して両者が連結され、さら
に、係止部材３０の鉄筋１，２との係止はグラウト剤の
浸透によって固定され、鉄筋１，２とスリーブ２０との
連結状態が一層強固なものとなり、このスリーブ２０と
連結部材１０との螺合によって鉄筋１，２と連結部材１
０とが間接的に連結される。従って、本実施例は、グラ
ウト剤を介してなる直接的な連結と、係止部材３０及び
スリーブ２０を介してなる間接的な連結との双方によっ
て強固に連結されるものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the connecting device according to the present invention will be described below with reference to FIGS. As shown in FIG. 1, the present embodiment is an apparatus for connecting deformed reinforcing bars (hereinafter simply referred to as reinforcing bars) 1 and 2, and the reinforcing bars 1 and 2 are provided on the surface thereof. The node shapes 3 and 4 are respectively formed. The device according to the present embodiment includes a connecting member 10.
And a sleeve 2 to be screwed into the male screw provided at both ends.
0, and a locking member 30 for locking the rebars 1 and 2 in the sleeve 20. The inner side of the locking member 30 avoids the knot shapes 3 and 4 on the surfaces of the rebars 1 and 2, and the rebar main body. (The portion where the rebar has no knot shape), the sleeve 20 is in close contact with the locking member 30, and the rebars 1, 2 and the sleeve 20 are connected. Are screwed and connected. Grouting agent in the gap between each member and the reinforcing bar (parts with fine dots in the figure)
Is filled. The grouting agent is not injected from the outside, but is filled in the fitting holes 11 and 12 provided at both ends of the connecting member 10 in advance, and both ends of the reinforcing bars 1 and 2 are fitted. By doing so, this insertion hole 1
It overflows from 1, 12 and eventually penetrates into each gap. Therefore, both ends of the rebars 1 and 2 and the connecting member 10 are directly connected by the grout inside the fitting holes 11 and 12. Further, the grouting agent penetrates into the gap between the sleeve 20 and the reinforcing bars 1 and 2 to connect the two, and the locking of the locking member 30 with the reinforcing bars 1 and 2 is fixed by the penetration of the grouting agent. The connection between the sleeves 1 and 2 and the sleeve 20 is further strengthened.
0 is connected indirectly. Therefore, in this embodiment, both the direct connection via the grout agent and the indirect connection via the locking member 30 and the sleeve 20 are firmly connected.
【００１１】次に、各部材を個別に説明する。連結部材
１０は、図２（ａ）に示すように、その両端が中央部分
に比較して大径となっており、当該大径部分の外側表面
には雄ねじ１３，１４が刻設されている。また、連結部
材１０の両端には軸線方向に沿って、鉄筋１，２の先端
部分が遊嵌できる程度の内径及び長さを有する嵌入孔１
１，１２が設けられている。従って、この嵌入孔１１
（１２）には、グラウト剤を溜めることができるととも
に、連結すべき鉄筋の先端を嵌入することができるよう
になっている。連結部材１０の中央部分は、図２（ｂ）
に示すように、丸棒形状となっており、その直径は連結
すべき鉄筋の節形状を含む直径とほぼ同様に設けられて
いる。Next, each member will be described individually. As shown in FIG. 2A, both ends of the connecting member 10 are larger in diameter than the central portion, and external threads 13 and 14 are engraved on the outer surface of the large diameter portion. . In addition, at both ends of the connecting member 10, along the axial direction, the fitting holes 1 having an inner diameter and a length such that the tip portions of the reinforcing bars 1 and 2 can be loosely fitted.
1 and 12 are provided. Therefore, this fitting hole 11
In (12), the grout agent can be stored, and the tip of the reinforcing bar to be connected can be fitted. The central portion of the connecting member 10 is shown in FIG.
As shown in FIG. 1, the rod has a round bar shape, and its diameter is provided substantially the same as the diameter including the node shape of the reinforcing bar to be connected.
【００１２】スリーブ２０は、図３に示すように、略円
筒状に構成されており、その一端の内側には、上記連結
部材１０の雄ねじ１３（１４）に螺合する雌ねじ２１が
刻設され、他端は鉄筋１（２）が緩やかに貫通できる程
度の内径を有する貫通孔２２が設けられている。そし
て、雌ねじ２１と貫通孔２２との中間部分には、雌ねじ
２１から貫通孔２２へ向かって内径が縮小するような勾
配部２３が設けられている。即ち、スリーブ２０の雌ね
じ２１に連結部材１０の雄ねじ１３（１４）を螺合させ
たとき、連結部材１０から遠ざかるにつれて内径は小さ
くなるようになっており、連結される鉄筋１（２）に引
張荷重が作用するとき、この鉄筋１（２）には、連結部
材１０から遠ざかる方向へ移動するように作用するが、
この鉄筋１（２）を係止する係止部材３０が勾配部２３
によって上記の移動を抑止させることができるのであ
る。それと同時に、軸線方向の力を径方向に変換するこ
とができるので、係止部材３０を鉄筋１（２）の表面に
対して強く押し当てられることとなる。As shown in FIG. 3, the sleeve 20 is formed in a substantially cylindrical shape, and a female screw 21 screwed into the male screw 13 (14) of the connecting member 10 is engraved inside one end of the sleeve 20. The other end is provided with a through hole 22 having an inner diameter such that the reinforcing bar 1 (2) can penetrate gently. An inclined portion 23 is provided at an intermediate portion between the female screw 21 and the through hole 22 such that the inner diameter decreases from the female screw 21 toward the through hole 22. That is, when the male screw 13 (14) of the connecting member 10 is screwed into the female screw 21 of the sleeve 20, the inner diameter becomes smaller as the distance from the connecting member 10 increases, so that the reinforcing bar 1 (2) to be connected is pulled. When a load acts, the rebar 1 (2) acts so as to move in a direction away from the connecting member 10,
The locking member 30 for locking the reinforcing bar 1 (2) is
Thus, the above movement can be suppressed. At the same time, the force in the axial direction can be converted in the radial direction, so that the locking member 30 is strongly pressed against the surface of the reinforcing bar 1 (2).
【００１３】係止部材３０は、図４に示すように、二つ
の係止片３０ａ，３０ｂからなり、両係止片３０ａ，３
０ｂを対向させることによって略円筒形状を構成させる
ことができるようになっている。この両係止片３０ａ，
３０ｂは、それぞれ一端から他端へ向けて肉厚が徐々に
変化しており、外径が縮小するように勾配が設けられて
いる。そして、上記のスリーブ２０内の勾配部２３に密
着しつつ内側へ押し付けられ、鉄筋周囲を押圧できるよ
うになっている。また、この係止片３０ａ，３０ｂの内
側には、周方向に複数の突出部３１〜３５が設けられて
おり、この突出部３１〜３５は、鉄筋１（２）の節形状
３（４）を避けて鉄筋表面に当接できるようになってい
る。そして、鉄筋１（２）は、図４（ａ）にも示すよう
に、軸線方向の直線的な節形状５と周方向に節形状３
（４）が設けられており、この周方向の節形状３（４）
は、直線的な節形状５を境にして上下の位置が異なって
おり、そのために、周方向の節形状３（４）の間隔に合
わせて、２つの突出部３１，３２を有する係止片３０ａ
と、３つの突出部３３，３４，３５を有する係止片３０
ｂとの二種類が設けられている。なお、両係止片３０
ａ，３０ｂを対向させることによって略円筒形状を構成
させるとき、鉄筋１（２）の直線的な節形状５の部分は
隙間を有するようになっている。また、両係止片３０
ａ，３０ｂの外側表面には周方向の溝部３６，３７が設
けられており、鉄筋１（２）に係止させるとき輪ゴム
（図示せず）などを掛けることができるようになってい
る。As shown in FIG. 4, the locking member 30 includes two locking pieces 30a and 30b.
By making 0b oppose, a substantially cylindrical shape can be constituted. These locking pieces 30a,
The thickness of 30b is gradually changed from one end to the other end, and a gradient is provided so that the outer diameter is reduced. Then, it is pressed inward while being in close contact with the inclined portion 23 in the sleeve 20, and can press around the reinforcing bar. Further, a plurality of protrusions 31 to 35 are provided in the circumferential direction inside the locking pieces 30a and 30b, and the protrusions 31 to 35 are the knot shapes 3 (4) of the reinforcing bar 1 (2). It can come in contact with the rebar surface avoiding. As shown in FIG. 4 (a), the reinforcing bar 1 (2) has a linear knot shape 5 in the axial direction and a knot shape 3 in the circumferential direction.
(4) is provided, and the knot shape 3 (4) in the circumferential direction is provided.
Are different from each other at the upper and lower positions with respect to the linear knot shape 5, and accordingly, a locking piece having two projecting portions 31 and 32 in accordance with the interval of the knot shape 3 (4) in the circumferential direction. 30a
And a locking piece 30 having three projections 33, 34, 35
b are provided. In addition, both locking pieces 30
When a substantially cylindrical shape is formed by opposing a and 30b, a portion of the linear bar-shaped portion 5 of the reinforcing bar 1 (2) has a gap. In addition, both locking pieces 30
A circumferential groove 36, 37 is provided on the outer surface of each of the a and 30b so that a rubber band (not shown) or the like can be hung on the reinforcing bar 1 (2).
【００１４】本実施例は上記のような構成となってお
り、この各構成部材の使用態様とともに異形鉄筋の連結
方法を図５に基づいて説明する。連結部材１０は両端が
同じ形状であり、この両端に鉄筋１，２を連結する方法
は同様であるので、一方の連結方法についてのみ説明す
る。まず、スリーブ２０に連結すべき鉄筋１を予め挿入
させる。このとき、スリーブ２０の雌ねじ２１（図３）
を設けた部分が鉄筋１の先端方向を向くようにしてお
く。続いて、鉄筋１の先端から連結部材１０の嵌入孔１
１に嵌入する長さ部分を離して係止片３０ａ，３０ｂに
よって係止する。このとき、輪ゴム（図示せず）等によ
ってこの係止を固定させる。そして、この係止部材３０
を覆うようにしながらスリーブ２０を鉄筋１の先端方向
へ移動させ、係止部材３０がスリーブ２０内部の勾配部
２３（図３）に当接させる。これにより、スリーブ２０
の勾配部２３が係止部材３０の表面を締め付けることと
なり、係止部材３０による鉄筋１の係止を強固にするこ
とができる。次に、連結部材１０の嵌入孔１１内にグラ
ウト剤を流入し、続いて、鉄筋１の先端を連結部材１０
の嵌入孔１１内に嵌入しつつ、連結部材１０の雄ねじ１
３にスリーブ２０の雌ねじ２１を螺合させる。この螺合
が進に連れて、鉄筋１の先端が連結部材１０の嵌入孔１
１内へさらに嵌入され、嵌入孔１１内のグラウト剤が溢
れ出し、鉄筋１と係止部材３０との間隙、及び、係止部
材３０とスリーブ２０との間隙、さらに、スリーブ２０
と鉄筋１との間隙に浸透することとなる。さらに、上記
の螺合が進行することによって、連結部材１０の先端
が、スリーブ２０内の係止部材３０に当接し、この係止
部材３０をスリーブ２０内の貫通孔２２（図３）方向へ
押しつけることとなり、その結果、スリーブ２０の勾配
部２３内側と係止部材３０の外側とが密着して、スリー
ブ２０と係止部材３０とが強固に圧着することとなる。
また、これと同時に、係止部材３０を構成する係止片３
０ａ，３０ｂが締め付けられ、鉄筋１を強固に係止する
こととなる。このようにして、鉄筋１と連結部材１０と
が連結され、グラウト剤の硬化にともなって連結状態が
強固になり、さらに、連結部材１０の他端を同様に鉄筋
２に連結させることによって、２本の鉄筋１，２を連結
することができるのである。The present embodiment has the above-described configuration, and a method of connecting the deformed reinforcing bars together with the usage of each component will be described with reference to FIG. Both ends of the connecting member 10 have the same shape, and the method of connecting the rebars 1 and 2 to both ends is the same. Therefore, only one connecting method will be described. First, the reinforcing bar 1 to be connected to the sleeve 20 is inserted in advance. At this time, the female screw 21 of the sleeve 20 (FIG. 3)
Is provided so as to face the tip of the reinforcing bar 1. Subsequently, the fitting hole 1 of the connecting member 10 is inserted from the tip of the reinforcing bar 1.
1 and is locked by locking pieces 30a and 30b. At this time, this locking is fixed by a rubber band (not shown) or the like. And this locking member 30
The sleeve 20 is moved in the direction of the tip of the reinforcing bar 1 so as to cover the inner surface of the rebar 1, and the locking member 30 is brought into contact with the inclined portion 23 (FIG. 3) inside the sleeve 20. Thereby, the sleeve 20
Of the locking member 30 tightens the surface of the locking member 30, and the locking of the reinforcing bar 1 by the locking member 30 can be strengthened. Next, the grout agent flows into the fitting hole 11 of the connecting member 10, and then the tip of the reinforcing bar 1 is connected to the connecting member 10.
The male screw 1 of the connecting member 10 is fitted into the fitting hole 11 of the
3, the female screw 21 of the sleeve 20 is screwed. As the screwing proceeds, the tip of the reinforcing bar 1 is inserted into the fitting hole 1 of the connecting member 10.
1, the grouting agent in the fitting hole 11 overflows, and the gap between the reinforcing bar 1 and the locking member 30, the gap between the locking member 30 and the sleeve 20, and the sleeve 20.
And the reinforcing bar 1 penetrates. Further, as the screwing proceeds, the tip of the connecting member 10 comes into contact with the locking member 30 in the sleeve 20, and the locking member 30 is moved in the direction of the through hole 22 (FIG. 3) in the sleeve 20. As a result, the inside of the slope portion 23 of the sleeve 20 and the outside of the locking member 30 are in close contact with each other, and the sleeve 20 and the locking member 30 are firmly pressed.
At the same time, the locking piece 3 constituting the locking member 30
0a and 30b are tightened, and the rebar 1 is firmly locked. In this manner, the reinforcing bar 1 and the connecting member 10 are connected to each other, and the connection state is strengthened as the grout hardens. It is possible to connect the reinforcing bars 1 and 2 of the book.
【００１５】次に、第二実施例について説明する。本実
施例は、図６に示すように、連結部材１１０の嵌入孔１
１１内部に突出部１１７を設けたものであって、鉄筋１
０１の先端を嵌入したとき、嵌入孔１１１内のグラウト
剤を介して鉄筋１０１と連結部材１１０とが直接的に連
結することとなるが、固化したグラウト剤と連結部材１
１０の嵌入孔１１１との間の摩擦抵抗を増加させるよう
にしたものであって、グラウト剤が嵌入孔１１１から容
易に脱落しないようにするするができるものである。な
お、このような突出部１１７は大きなものである必要は
なく、グラウト剤が嵌入孔１１１内において、程度な抵
抗力を与えられるものであればよい。Next, a second embodiment will be described. In the present embodiment, as shown in FIG.
11 is provided with a protruding portion 117 inside the reinforcing bar 1
When the tip of the connecting member 110 is fitted, the reinforcing bar 101 and the connecting member 110 are directly connected via the grouting agent in the fitting hole 111, but the solidified grouting agent and the connecting member 1 are connected.
The frictional resistance between the fitting hole 111 and the tenth insertion hole 111 is increased, and the grout agent can be prevented from easily dropping out of the insertion hole 111. The protrusion 117 does not need to be large, and may be any as long as the grout can provide a certain level of resistance in the fitting hole 111.
【００１６】以上に本発明の実施例を説明したが、本発
明の趣旨を逸脱しない範囲で種々なる実施の態様を取り
得ることは無論である。例えば、上記の実施例に示した
鉄筋連結方法は、２本の鉄筋を連結部材の両端に一度に
連結するもののみを説明しているが、図７に示すよう
に、予め、連結部材１０の一端について、係止部材３０
及びスリーブ２０を用いて鉄筋２を連結した状態にして
おき、作業段階では、他端についての連結作業を行うこ
とにするものであっても良く、そうすれば、より簡便に
現場作業が行えるものである。また、連結部材１０に
は、鉄筋の径とほぼ同径の中央部分を設ける構成とした
が、連結部材１０の両端付近に設けた雄ねじ１３，１４
を一体的に構成すれば、連結部材１０としての目的を達
成できるものである。さらに、このような中央部分を鉄
筋の径と同じ径にすることは、図８に示すように、連結
した鉄筋１，２に対して直交する鉄筋５が、連結した位
置、若しくは、その周辺で交差するとき、この中央部分
において交差させることによって、他の箇所（通常の鉄
筋部分）で交差する場合の間に鉄筋５の位置が異なるこ
とがなく、良好な鉄筋工事が行なえるものである。Although the embodiments of the present invention have been described above, it goes without saying that various embodiments can be adopted without departing from the spirit of the present invention. For example, the rebar connection method described in the above embodiment only describes a method in which two rebars are connected to both ends of the connection member at once, but as shown in FIG. At one end, the locking member 30
And the rebar 2 may be connected by using the sleeve 20, and in the working stage, the connecting work on the other end may be performed, so that the on-site work can be performed more easily. It is. Although the connecting member 10 has a configuration in which a central portion having a diameter substantially equal to the diameter of the reinforcing bar is provided, male screws 13 and 14 provided near both ends of the connecting member 10 are provided.
Are integrally configured, the object as the connecting member 10 can be achieved. Further, such a central portion having the same diameter as that of the rebar is provided at a position where the rebar 5 orthogonal to the connected rebars 1 and 2 is connected, or at the periphery thereof, as shown in FIG. By crossing at this central portion when crossing, the position of the reinforcing bar 5 does not differ between when crossing at another portion (a normal reinforcing bar portion), and good rebar construction can be performed.
【００１７】[0017]
【発明の効果】以上のように、本発明の鉄筋連結装置
は、両端付近表面に雄ねじが刻設され、連結すべき鉄筋
の先端が十分な間隙を有して遊嵌できる嵌入孔が両端か
ら軸線方向に沿って設けられた連結部材と、鉄筋が緩や
かに挿入できる略円筒状の一端部に上記連結部材に設け
られた雄ねじに螺合する雌ねじが刻設され、内径が他端
部へ向けて小さくなる勾配部を中央付近に設けられた２
つのスリーブと、このスリーブの勾配部内において鉄筋
を係止する係止部材とからなる鉄筋連結部であって、上
記連結部材は、その両端が中央部よりも径を大きく構成
された両端部を有し、この両端部の表面全体に雄ねじが
刻設され、該両端部の軸線方向の長さは、その内部に設
けられる嵌入孔の深さよりも長く設けられ、上記係止部
材は、２つの係止片からなり、両係止片は、その内側周
方向に突出し、かつ該係止片により連結すべき鉄筋を係
止させるとき該鉄筋表面に当接する突出部を有し、上記
スリーブは、その中央付近に設けられる勾配部と雌ねじ
が刻設される部分との間に、上記雌ねじのネジ溝径とほ
ぼ同じ径の間隙部が設けられ、該スリーブを上記連結部
材に螺合させつつ進行させるとき、該連結部材の先端を
上記係止部材に当接させつつ上記空隙部付近まで移動し
て、該係止部材を上記勾配部に押しつけ、上記連結部材
の嵌入孔内に充填したグラウト剤を各部材間に浸透させ
てなることを特徴とする鉄筋連結装置を要旨とするの
で、連結すべき鉄筋を加工する必要がなくなり、丸棒鉄
筋のほか異形鉄筋をその形状のまま連結することが可能
である。また、連結部材とスリーブとを螺合させる前
に、連結部材の嵌入孔内にグラウト剤を充填しておけ
ば、鉄筋の嵌入に伴って、このグラウト剤が徐々に嵌入
孔から外方へ溢れ出し、この溢れたグラウト剤が各構成
部材間に浸透するので、連結部材とスリーブとを螺合さ
せた後に、グラウト剤を注入する必要がなくなるのであ
る。従って、グラウト剤を注入するための注入孔を連結
部材に設ける必要がないので、引張荷重が作用したとき
に応力集中する部分がなく強度を維持することができ
る。As described above, according to the rebar connection device of the present invention, male threads are engraved on the surfaces near both ends, and the insertion holes through which the tips of the rebar to be connected can be loosely fitted with a sufficient gap are formed from both ends. A connecting member provided along the axial direction and a female screw screwed into a male screw provided on the connecting member are engraved at one end of a substantially cylindrical shape into which a reinforcing bar can be loosely inserted, and the inner diameter is directed toward the other end. 2 is provided near the center.
And One of the sleeve, a reinforcing bar connection part comprising a locking member for locking the reinforcing bar in the gradient portion of the sleeve, the upper
The connecting member has a larger diameter at both ends than at the center.
Male screw on the entire surface of both ends.
The length in the axial direction of the both ends is set in the inside.
The locking member is provided with a length longer than the depth of the fitting hole to be inserted, and the locking member is composed of two locking pieces , and both locking pieces protrude in an inner circumferential direction thereof and form a reinforcing bar to be connected by the locking pieces. Person in charge
Having a protruding portion that comes into contact with the surface of the rebar when being stopped,
The sleeve has a sloping part and female screw near the center.
Between the thread groove diameter of the female screw and the part where the
A gap having the same diameter as that of the connecting portion is provided.
When proceeding while screwing into the material, the tip of the connecting member
Move to the vicinity of the gap while contacting the locking member
Then, the locking member is pressed against the slope portion, and the grouting agent filled in the fitting hole of the connection member is made to penetrate between the members. It is not necessary to process the reinforcing steel bar, and it is possible to connect a deformed reinforcing bar in addition to a round bar reinforcing bar in its shape. Further, if the grout agent is filled in the insertion hole of the connection member before screwing the connection member and the sleeve, the grout agent gradually overflows from the insertion hole as the reinforcing bar is inserted. Since the overflowing grout agent permeates between the constituent members, there is no need to inject the grout agent after screwing the connecting member and the sleeve. Therefore, there is no need to provide an injection hole for injecting the grout agent in the connecting member, so that there is no portion where stress concentrates when a tensile load is applied, and strength can be maintained.
【００１８】上記連結装置を使用した連結方法は、連結
すべき２本の鉄筋のそれぞれに、雌ねじを刻設した側を
鉄筋先端に向けてスリーブを嵌挿し、両鉄筋の先端付近
において、該鉄筋先端が２つの係止片の該鉄筋先端側端
部から該鉄筋先端までの長さを上記スリーブの雄ねじの
長さよりも短くなるように、上記２つの係止片の突出部
を該鉄筋に当接させて係止部材による係止をし、この状
態でスリーブを鉄筋の先端方向に移動させて、上記係止
部材の外表面にそれぞれスリーブの勾配部を当接させる
とともに、上記鉄筋の先端が上記スリーブの連結部材の
両端に設けられた嵌入孔内にグラウト剤をそれぞれ充填
したのち、この嵌入孔内に１本ずつ鉄筋先端を嵌入させ
つつスリーブの雌ねじに連結部材の雄ねじを螺合させ、
上記螺合を進行させて連結部材の先端を係止部材に当接
させることによって係止部材をスリーブに固定すること
を特徴とする請求項１記載の鉄筋連結装置を使用する鉄
筋連結方法を要旨とするので、鉄筋に係止される係止部
材の外表面にスリーブの勾配部を当接させることによっ
て、この勾配部が係止部材を締め付けるように作用し、
鉄筋と係止部材との係止状態をかなり強力な状態にする
ことができる。そして、この状態では、スリーブ内に嵌
挿する鉄筋の軸心はスリーブ内の係止部材の存在によっ
てスリーブの軸心に一致するようになる。従って、連結
部材にスリーブを連結するとき、連結すべき鉄筋を連結
部材の軸線に沿って、連結部材の嵌入孔内へ容易に嵌入
させることができる。即ち、連結部材の嵌入孔の中心に
連結すべき鉄筋の中心を合わせることなく嵌入できるの
で、鉄筋と嵌入孔との中心との位置を注意する必要がな
く、作業効率を向上させることができ、工事期間を短縮
することとなるものである。また、グラウト剤は、鉄筋
と連結部材との連結前に、連結部材の嵌入孔内に充填さ
れるので、鉄筋と連結部材とを連結させた後に、グラウ
ト剤の注入を失念することなどはあり得ず、予定される
強度を維持することができるのである。In the connecting method using the above-described connecting device, a sleeve is inserted into each of two reinforcing bars to be connected, with the side on which the female screw is engraved facing the leading end of the reinforcing bar, and the vicinity of the leading end of both reinforcing bars.
, The reinforcing bar tip is an end of the locking bar on the side of the reinforcing bar.
The length from the section to the tip of the rebar is
The protrusions of the two locking pieces are brought into contact with the rebar so as to be shorter than the length, and the locking is performed by the locking member. In this state, the sleeve is moved toward the tip of the rebar, and After making the slope portion of the sleeve abut against the outer surface of the stop member, the tip of the rebar fills the grout agent into the fitting holes provided at both ends of the connecting member of the sleeve, and then into the fitting holes. The male screw of the connecting member is screwed into the female screw of the sleeve while fitting the tip of the reinforcing bar one by one.
Iron rod connecting method using the iron rod connecting apparatus according to claim 1, wherein the benzalkonium to secure the locking member to the sleeve by contact with the distal end of the connecting member is allowed to proceed the engagement with the locking member Since the gist of the invention, the sloped portion of the sleeve is brought into contact with the outer surface of the locking member locked by the rebar, so that the sloped portion acts to tighten the locking member,
The locking state between the reinforcing bar and the locking member can be made quite strong. In this state, the axis of the reinforcing bar inserted into the sleeve coincides with the axis of the sleeve due to the presence of the locking member in the sleeve. Therefore, when connecting the sleeve to the connecting member, the reinforcing bar to be connected can be easily fitted into the fitting hole of the connecting member along the axis of the connecting member. That is, since the fitting can be performed without aligning the center of the reinforcing bar to be connected to the center of the fitting hole of the connecting member, it is not necessary to pay attention to the position of the reinforcing bar and the center of the fitting hole, and the working efficiency can be improved, This will shorten the construction period. Also, since the grouting agent is filled in the fitting hole of the connecting member before connecting the reinforcing bar and the connecting member, there is a case where the grouting agent is forgotten after the connecting of the reinforcing bar and the connecting member. It is not possible to maintain the expected strength.
【００１９】また、本発明の鉄筋連結方法においては、
グラウト剤による直接的な連結と、係止部材及びスリー
ブによる間接的な連結との双方によって鉄筋と連結部材
とが連結されており、例えば、何らかの思いがけない理
由によって、グラウト剤の浸透状態が不十分となってい
る場合、又は、係止部材による係止状態が不十分となっ
ている場合のように、本来であれば、強度を全く有しな
い状態であっても、相互に補い合うことによって、ある
程度の強度を維持することができるものである。また、
仮にそれぞれ単独では十分な強度を得ることができない
場合であっても、この両者に作用する部位が異なるた
め、荷重を分散することができるものである。Further, in the rebar connecting method of the present invention ,
And a direct connection by grout agent, both are connected and the connecting member and the reinforcing bars by the indirect linkage by the locking member and the sleeve, for example, for some unexpected reason, the penetration state of the grout agent not If it is sufficient, or as in the case where the locking state by the locking member is insufficient, originally, even if it has no strength at all, by complementing each other, It can maintain a certain level of strength. Also,
Even if it is not possible to obtain sufficient strength by using each of them alone, since the portions acting on both of them are different, the load can be dispersed.
【図１】第一実施例の構成を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a configuration of a first embodiment.
【図２】（ａ）は連結部材の一部断面図、（ｂ）はＸ−
Ｘ断面図である。2A is a partial cross-sectional view of a connecting member, and FIG.
It is X sectional drawing.
【図３】スリーブの一部断面図である。FIG. 3 is a partial sectional view of a sleeve.
【図４】（ａ）は係止部材の説明図、（ｂ）は一方の係
止片の内側を示す平面図、（ｃ）は一方の係止片の内側
を示す平面図である。4A is an explanatory view of a locking member, FIG. 4B is a plan view showing the inside of one locking piece, and FIG. 4C is a plan view showing the inside of one locking piece.
【図５】鉄筋連結方法の実施例を示す説明図である。FIG. 5 is an explanatory diagram showing an embodiment of a reinforcing bar connection method.
【図６】第二実施例の構成を示す縦断面図である。FIG. 6 is a longitudinal sectional view showing the configuration of the second embodiment.
【図７】他の鉄筋連結方法の実施例を示す説明図であ
る。FIG. 7 is an explanatory view showing an embodiment of another rebar connection method.
【図８】鉄筋の交差の状態を示す説明図である。FIG. 8 is an explanatory diagram showing a state of intersection of reinforcing bars.
１，２ 異形鉄筋 ３，４ 節形状 １０ 連結部材 １１，１２ 嵌入孔 １３，１４ 雄ねじ ２０ スリーブ ２１ 雌ねじ ２２ 貫通孔 ２３ 勾配部 ３０ 係止部材 ３０ａ，３０ｂ 係止片 ３１，３２，３３，３４，３５ 突出部 1, deformed reinforcing bar 3, 4 knot shape 10 connecting member 11, 12 fitting hole 13, 14 male screw 20 sleeve 21 female screw 22 through hole 23 sloped portion 30 locking member 30a, 30b locking piece 31, 32, 33, 34, 35 Projection
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E04C 5/00 - 5/20 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) E04C 5/00-5/20
Claims (4)
すべき鉄筋の先端が十分な間隙を有して遊嵌できる嵌入
孔が両端から軸線方向に沿って設けられた連結部材と、
鉄筋が緩やかに挿入できる略円筒状の一端部に上記連結
部材に設けられた雄ねじに螺合する雌ねじが刻設され、
内径が他端部へ向けて小さくなる勾配部を中央付近に設
けられた２つのスリーブと、このスリーブの勾配部内に
おいて鉄筋を係止する係止部材とからなる鉄筋連結部で
あって、上記連結部材は、その両端が中央部よりも径を大きく構
成された両端部を有し、この両端部の表面全体に雄ねじ
が刻設され、該両端部の軸線方向の長さは、その内部に
設けられる嵌入孔の深さよりも長く設けられ、 上記係止部材は、２つの係止片からなり、両係止片は、
その内側周方向に突出し、かつ該係止片により連結すべ
き鉄筋を係止させるとき該鉄筋表面に当接する突出部を
有し、 上記スリーブは、その中央付近に設けられる勾配部と雌
ねじが刻設される部分との間に、上記雌ねじのネジ溝径
とほぼ同じ径の間隙部が設けられ、該スリーブを上記連
結部材に螺合させつつ進行させるとき、該連結部材の先
端を上記係止部材に当接させつつ上記空隙部付近まで移
動して、該係止部材を上記勾配部に押しつけ、 上記連結部材の嵌入孔内に充填したグラウト剤を各部材
間に浸透させてなることを特徴とする鉄筋連結装置。A connecting member having male threads engraved on the surfaces near both ends thereof, and a fitting hole provided along the axial direction from both ends with fitting holes into which the tips of the reinforcing bars to be connected can be loosely fitted with a sufficient gap ;
A female screw screwed into a male screw provided on the connecting member is engraved at one end of the substantially cylindrical shape into which the rebar can be inserted gently,
And two sleeves internal diameter is provided with small gradient portion toward the other end in the vicinity of the center, a reinforcing bar connection part comprising a locking member for locking the reinforcing bar in the gradient portion of the sleeve, the connection The member has a larger diameter at both ends than at the center.
With both ends formed, a male screw is
Are engraved, and the axial length of both ends is
The locking member is provided to be longer than the depth of the provided insertion hole, and the locking member includes two locking pieces .
Projecting the inside circumferential and coupling all the engaging piece,
When locking the rebar, the protrusion that comes into contact with the rebar surface
A, the sleeve, the slope portion and the female which is provided near its center
The thread groove diameter of the female screw is between the part where the screw is engraved.
A gap having a diameter substantially the same as that of the sleeve is provided.
When proceeding while being screwed into the connecting member, the tip of the connecting member
Move the end to the vicinity of the gap while contacting the end with the locking member.
The reinforcing member is pressed against the inclined portion by moving the grouting agent, and the grout filled in the fitting hole of the connecting member penetrates between the members.
は、その外側周方向に溝部を設けたことを特徴とする請
求項１記載の鉄筋連結装置。2. The rebar connection device according to claim 1, wherein the two locking pieces constituting the locking member are provided with grooves in the outer circumferential direction.
ねじを刻設した側を鉄筋先端に向けてスリーブを嵌挿
し、両鉄筋の先端付近において、該鉄筋先端が２つの係
止片の該鉄筋先端側端部から該鉄筋先端までの長さを上
記スリーブの雄ねじの長さよりも短くなるように、上記
２つの係止片の突出部を該鉄筋に当接させて係止部材に
よる係止をし、この状態でスリーブを鉄筋の先端方向に
移動させて、上記係止部材の外表面にそれぞれスリーブ
の勾配部を当接させるとともに、上記鉄筋の先端が上記
スリーブの連結部材の両端に設けられた嵌入孔内にグラ
ウト剤をそれぞれ充填したのち、この嵌入孔内に１本ず
つ鉄筋先端を嵌入させつつスリーブの雌ねじに連結部材
の雄ねじを螺合させ、上記螺合を進行させて連結部材の
先端を係止部材に当接させることによって係止部材をス
リーブに固定することを特徴とする請求項１記載の鉄筋
連結装置を使用する鉄筋連結方法。To 3. Each of the two reinforcing bars to be coupled, fitted a sleeve side was engraved an internal thread towards the rebar tip, the tip vicinity of both reinforcing bar, iron muscle tips of two engaging
Increase the length from the end of the rebar tip to the tip of the rebar
The protrusions of the two locking pieces are brought into contact with the reinforcing bar so as to be shorter than the length of the male screw of the sleeve, and the locking is performed by the locking member. In this state, the sleeve is moved toward the tip of the reinforcing bar. Then, while the slope portion of the sleeve is brought into contact with the outer surface of the locking member, the tip of the rebar fills the grout agent into the fitting holes provided at both ends of the connecting member of the sleeve, A male screw of the connecting member is screwed into the female screw of the sleeve while the tip of the reinforcing bar is inserted one by one into this fitting hole, and the screwing is advanced so that the tip of the connecting member comes into contact with the locking member to lock. iron rod connecting method using the iron rod connecting apparatus according to claim 1, wherein the benzalkonium to secure the member to the sleeve.
ねじを刻設した側を鉄筋先端に向けてスリーブを嵌挿
し、両鉄筋の先端付近において、該鉄筋先端が２つの係
止片の該鉄筋先端側端部から該鉄筋先端までの長さを上
記スリーブの雄ねじの長さよりも短くなるように、上記
２つの係止片の突出部を該鉄筋に当接させ、該係止片で
構成された係止部材の外側に輪ゴムを掛け、スリーブを
鉄筋の先端方向に移動させつつ該鉄筋先端が該スリーブ
の先端よりも内方で固定するように上記係止部材の外表
面にそれぞれスリーブの勾配部を当接させ、連結部材の
両端に設けられた嵌入孔内にグラウト剤をそれぞれ充填
したのち、この嵌入孔内に１本ずつ鉄筋先端を嵌入させ
つつスリーブの雌ねじに連結部材の雄ねじを螺合させ、
上記螺合を進行させて連結部材の先端を係止部材に当接
させることによって係止部材をスリーブに固定すること
を特徴とする請求項２記載の鉄筋連結装置を使用する鉄
筋連結方法。 4. A each of the two reinforcing bars to be coupled, fitted a sleeve side was engraved an internal thread towards the rebar tip, the tip vicinity of both reinforcing bar, iron muscle tips of two engaging
Increase the length from the end of the rebar tip to the tip of the rebar
The protrusions of the two locking pieces are brought into contact with the rebar so as to be shorter than the length of the male screw of the sleeve, and a rubber band is hung on the outer side of the locking member constituted by the locking pieces, and the sleeve is mounted. Slope portions of the sleeves are respectively brought into contact with the outer surfaces of the locking members so that the tip of the rebar is fixed inside the tip of the sleeve while moving in the direction of the tip of the rebar, and provided at both ends of the connecting member. After the grout agent is filled into the fitting holes, the male screw of the connecting member is screwed into the female screw of the sleeve while the tip of the reinforcing bar is fitted one by one into the fitting hole,
Iron rod connecting method using the iron rod connecting apparatus according to claim 2, wherein the benzalkonium to secure the locking member to the sleeve by contact with the distal end of the connecting member is allowed to proceed the engagement with the locking member .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08504995A JP3272563B2 (en) | 1995-04-11 | 1995-04-11 | Rebar connection device and rebar connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08504995A JP3272563B2 (en) | 1995-04-11 | 1995-04-11 | Rebar connection device and rebar connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08284320A JPH08284320A (en) | 1996-10-29 |
| JP3272563B2 true JP3272563B2 (en) | 2002-04-08 |
Family
ID=13847821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08504995A Expired - Fee Related JP3272563B2 (en) | 1995-04-11 | 1995-04-11 | Rebar connection device and rebar connection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272563B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6472103B1 (en) | 1997-08-01 | 2002-10-29 | The Gillette Company | Zinc-based electrode particle form |
| US6521378B2 (en) | 1997-08-01 | 2003-02-18 | Duracell Inc. | Electrode having multi-modal distribution of zinc-based particles |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003902986A0 (en) * | 2003-06-13 | 2003-06-26 | Onesteel Reinforcing Pty Ltd | A coupler |
| CN114775912B (en) * | 2022-05-12 | 2023-07-14 | 中建三局集团有限公司 | Grouting connection structure for mechanical sleeve of prefabricated member reinforcing steel bar |
-
1995
- 1995-04-11 JP JP08504995A patent/JP3272563B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6472103B1 (en) | 1997-08-01 | 2002-10-29 | The Gillette Company | Zinc-based electrode particle form |
| US6521378B2 (en) | 1997-08-01 | 2003-02-18 | Duracell Inc. | Electrode having multi-modal distribution of zinc-based particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08284320A (en) | 1996-10-29 |
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