JP3678358B2 - Reinforcing bar joint structure - Google Patents
Reinforcing bar joint structure Download PDFInfo
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- JP3678358B2 JP3678358B2 JP2001401346A JP2001401346A JP3678358B2 JP 3678358 B2 JP3678358 B2 JP 3678358B2 JP 2001401346 A JP2001401346 A JP 2001401346A JP 2001401346 A JP2001401346 A JP 2001401346A JP 3678358 B2 JP3678358 B2 JP 3678358B2
- Authority
- JP
- Japan
- Prior art keywords
- thread
- joint
- threaded
- joint pipe
- 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.)
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- Reinforcement Elements For Buildings (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は土木、建築現場における異形鉄筋同士を付き合わせて連結する鉄筋の継手構造及びこの継手構造における鉄筋の連結方法に関するもので、例えば鉄筋コンクリート造、鉄骨鉄筋コンクリート造の構造物を構築する場合、軸方向に移動ができる主筋の連結に使用されるものである。
【0002】
【従来の技術】
従来から、軸方向に移動できる異形鉄筋の継手構造は、連結すべき2本の異形鉄筋の一端はそれぞれ継手パイプに挿入して予め圧着してあり、この両継手パイプは一本の接続ボルトにより連結されるものである。
【0003】
【発明が解決しようとする課題】
しかし、両継手パイプを接続ボルトで連結するとき、左右の異形鉄筋に予め固着してある2つの継手パイプと接続ボルトとの3つの部材の各軸心を同時に軸合わせて、この状態を保持しながら、この接続ボルトを両継手パイプに螺入させることによりこの両継手パイプを軸方法に引き寄せて連結するため、その作業が困難であり、作業効率に問題があった。
【0004】
そこで、本発明の目的は鉄筋の連結作業が簡単で、作業効率を向上させた鉄筋の継手構造及びこの継手構造における鉄筋の連結方法を提供することにある。
【0005】
【課題を解決するための手段】
本発明に係る鉄筋の継手構造の特徴は、連結すべき2本の鉄筋と、2つの継手パイプと、1本の接続ボルトとから構成してあり、上記2つの継手パイプの一端部には、それぞれ上記鉄筋の先端部が連結してあり、上記2つの継手パイプの内周面には、相互に逆方向の雌ねじ部が形成してあり、かつ、この継手パイプの一方の雌ねじ部は一条ねじ、他方の雌ねじ部は多条ねじであり、上記接続ボルトには、その中央部から左右端部に向けて相互に逆方向の雄ねじ部が形成してあり、かつ、この雄ねじ部の一方は一条ねじ、他方は多条ねじであり、上記接続ボルトの一条ねじのねじ部は、上記継手パイプの一条ねじのねじ部に螺合可能であり、上記接続ボルトの多条ねじのねじ部は、上記継手パイプの多条ねじのねじ部に螺合可能であるところにある。
【0006】
また、本発明に係る鉄筋の連結方法の特徴は、前記特徴を有する鉄筋の継手構造をおいて、最初に一条ねじ同士の継手パイプと接続ボルトとをゲージを用いて所定長残して接続させ、その後で、一条ねじ同士の継手パイプと接続ボルトと多条ねじ同士の継手パイプと接続ボルトとを同時に接続させるところにある。
【0007】
【発明の実施の形態】
そこで、本発明の実施の形態を図面を参照して説明すると、図1に示すように、連結すべき2本の異形鉄筋1,2と、2つの継手パイプ3,4と、1本の接続ボルト5とから構成してある。2つの継手パイプ3,4のそれぞれの外端には、鉄筋1,2の先端部が予め挿入されて圧着して連結してある。
【0008】
2つの継手パイプ3,4の内端部の内周面には、それぞれ雌ねじ部3a,4aが刻設してあり、さらに、この両雌ねじ部3a,4aは相互に逆方向に形成してあり、かつ、この継手パイプの一方3の雌ねじ部3aは一条ねじ、他方4の雌ねじ部4aは多条ねじの四条ねじであり、
【0009】
接続ボルト5には、その中央部から左右端部に向けて相互に逆方向の雄ねじ部5a,5bが形成してあり、さらに、この雄ねじ部の一方5aは一条ねじ、他方5bは多条ねじの四条ねじである。接続ボルト5は図2、図3に示すように、中央部にトルクコントロールピン6が植設してあり、このピンに係合する係合溝7aが形成してある締付けリング7が取り付けてある。
【0010】
そして、接続ボルト5の一条ねじの雄ねじ部5aは一方の継手パイプ3の一条ねじの雌ねじ部3aに螺合可能であり、また、この接続ボルトの四条ねじのねじ部5bは他方の継手パイプ4の四条ねじのねじ部4aと螺合可能である。
【0011】
次に、本発明による異形鉄筋1,2の連結作業について説明する。図1の状態において、先ず、一方の継手パイプ3と接続ボルト5の軸心を合わせ、この接続ボルトの左半部の一条ねじである雄ねじ5aを、締付けリング7を回転させることにより、この継手パイプの一条ねじである雌ねじ3aに螺入する。この時、図4に示すように雄ねじ5aの4分の1は螺入させないで残す。この4分の1のねじ部を残すには、ゲージ8を用いると便利である。次に、ゲージ8を外し、四条ねじの雄ねじ部5bを他方の継手パイプ4の軸心に合わせ、締付けリング7を回転させ、この雄ねじ部5bを継手パイプ4の雌ねじ部4aに螺入する。これと同時に、接続ボルト5の残りの4分の1のねじ部5aも継手パイプ3に螺入し、そのため、両雄ねじ部5a,5bはそれぞれ継手パイプ3,4に完全に螺入し螺合する。そして、この時の締付けリング7の回転数は4分の1、即ち、1/多条の整数の回転数で済む。
【0012】
前記実施例では、多条ねじとして四条ねじを示したが、その他の多条ねじも選択できる。
【0013】
【発明の効果】
本発明によると、連結作業が最初に一条ねじの一方の継手パイプと接続ボルトとの2部品の軸心を合わせて所定長残して螺合して連結し、次に、多条ねじの他方の継手パイプと接続ボルトとの2部品の軸心を合わせて螺合して、前記残りの一条ねじの一方の継手パイプと接続ボルトと同時に連結するので、従来のように、両継手パイプと接続ボルトとの3部材を同時に軸心合わせする必要がなく、そのため連結作業が容易になり、作業効率が向上する。特に、最初に一条ねじの一方の継手パイプと接続ボルトとの2部品の軸心を合わせて所定長残して螺合して連結するのにゲージを用いると、この所定長残して正確に連結させるのが容易になる。
【図面の簡単な説明】
【図1】 異形鉄筋、継手パイプ、接続ボルトによる接続構造の展開図である。
【図2】 接続ボルトの拡大正面図である。
【図3】 図2に示す接続ボルトの断面図である
【図4】 異形鉄筋の接続途中の状態を示す正面図である。
【符号の説明】
1,2 鉄筋
3,4 継手パイプ
3a 一条ねじの雌ねじ部
4a 多条ねじの雌ねじ部
5 接続ボルト
5a 一条ねじの雄ねじ部
5b 多条ねじの雄ねじ部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint structure for reinforcing bars that connect and connect deformed reinforcing bars in civil engineering and construction sites, and a method for connecting the reinforcing bars in this joint structure. It is used to connect main muscles that can move in the direction.
[0002]
[Prior art]
Conventionally, the joint structure of deformed reinforcing bars that can move in the axial direction is that one end of each of the two deformed reinforcing bars to be connected is inserted into a joint pipe and crimped in advance. It is to be connected.
[0003]
[Problems to be solved by the invention]
However, when connecting both joint pipes with connecting bolts, the shaft centers of the three members of the two joint pipes and connecting bolts, which are pre-fixed to the left and right deformed reinforcing bars , are aligned simultaneously to maintain this state. However, since the connecting bolts are screwed into the two joint pipes, the two joint pipes are pulled and connected to the shaft method, so that the work is difficult and the work efficiency is problematic.
[0004]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a reinforcing bar joint structure in which the reinforcing bar connecting operation is simple and the working efficiency is improved, and a reinforcing bar connecting method in this joint structure.
[0005]
[Means for Solving the Problems]
The feature of the joint structure of the reinforcing bar according to the present invention is composed of two reinforcing bars to be connected, two joint pipes, and one connection bolt, and at one end of the two joint pipes, The end portions of the reinforcing bars are connected to each other, and female thread portions in opposite directions are formed on the inner peripheral surfaces of the two joint pipes, and one female thread portion of the joint pipe is a single thread. The other female threaded portion is a multi-threaded screw, and the connecting bolt is formed with male threaded portions in opposite directions from the center to the left and right ends, and one of the male threaded portions is a single thread. The screw, the other is a multi-threaded screw, the threaded portion of the single-threaded thread of the connecting bolt can be screwed into the threaded threaded portion of the joint pipe, and the threaded portion of the multi-threaded thread of the connecting bolt is Where it can be screwed onto the thread of the multi-thread thread of the joint pipe That.
[0006]
Further, the reinforcing bar connecting method according to the present invention is characterized in that the reinforcing bar joint structure having the above-described characteristics is first connected by using a gauge to connect the joint pipe between the single thread threads and the connecting bolt, leaving a predetermined length, Thereafter, the joint pipe and the connecting bolt of the single thread threads are connected to the joint pipe and the connecting bolt of the multi-thread threads at the same time.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Therefore, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, two deformed
[0008]
Female threaded
[0009]
The connecting
[0010]
The
[0011]
Next, the connection work of the
[0012]
In the said Example, although the four-thread screw was shown as a multi-thread thread, another multi-thread thread can also be selected.
[0013]
【The invention's effect】
According to the present invention, the connecting operation is performed by first connecting the joint parts of one joint thread of the single thread and the connecting bolt by screwing together with a predetermined length, and then connecting the other thread of the multi-thread thread. Two joint pipes and connecting bolts are aligned and screwed together, and one of the remaining single-threaded threads is connected to the connecting pipe simultaneously with the connecting bolt. These three members need not be aligned at the same time, so that the connecting operation is facilitated and the working efficiency is improved. In particular, when a gage is used to first connect the joint parts of one threaded screw and the connecting bolt with the shaft center of the two parts, leaving a predetermined length and screwing and connecting them, the predetermined length remains and is accurately connected. It becomes easy.
[Brief description of the drawings]
FIG. 1 is a development view of a connection structure using deformed reinforcing bars , joint pipes, and connection bolts.
FIG. 2 is an enlarged front view of a connection bolt.
3 is a cross-sectional view of the connecting bolt shown in FIG. 2. FIG. 4 is a front view showing a state in the middle of connecting deformed reinforcing bars .
[Explanation of symbols]
DESCRIPTION OF
Claims (2)
上記2つの継手パイプの一端部には、それぞれ上記鉄筋の先端部が連結してあり、
上記2つの継手パイプの内周面には、相互に逆方向の雌ねじ部が形成してあり、かつ、この継手パイプの一方の雌ねじ部は一条ねじ、他方の雌ねじ部は多条ねじであり、
上記接続ボルトには、その中央部から左右端部に向けて相互に逆方向の雄ねじ部が形成してあり、かつ、この雄ねじ部の一方は一条ねじ、他方は多条ねじであり、
上記接続ボルトの一条ねじのねじ部は、上記継手パイプの一条ねじのねじ部に螺合可能であり、
上記接続ボルトの多条ねじのねじ部は、上記継手パイプの多条ねじのねじ部に螺合可能である
ことを特徴とする鉄筋の継手構造。It consists of two rebars to be connected, two joint pipes, and one connection bolt,
One end of the two joint pipes is connected to the tip of the reinforcing bar,
On the inner peripheral surfaces of the two joint pipes, female thread portions in opposite directions are formed, and one female thread portion of the joint pipe is a single thread, and the other female thread portion is a multiple thread.
In the connection bolt, male screw portions in opposite directions are formed from the central portion toward the left and right end portions, and one of the male screw portions is a single thread, and the other is a multiple thread.
The thread portion of the single thread of the connection bolt can be screwed to the thread portion of the single thread of the joint pipe,
Reinforcing bar joint structure characterized in that the threaded portion of the multi-threaded thread of the connecting bolt can be screwed into the threaded section of the threaded thread of the joint pipe.
ことを特徴とする鉄筋の連結方法。In the reinforcing bar joint structure according to claim 1, first, the joint pipe and the connection bolt of the single thread are left to connect with a predetermined length using a gauge, and then the joint pipe and the connection bolt of the single thread are connected. A connecting method of reinforcing bars, characterized in that a joint pipe and a connecting bolt of a multi-thread thread are connected simultaneously.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001401346A JP3678358B2 (en) | 2001-12-28 | 2001-12-28 | Reinforcing bar joint structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001401346A JP3678358B2 (en) | 2001-12-28 | 2001-12-28 | Reinforcing bar joint structure |
Publications (2)
Publication Number | Publication Date |
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JP2003193569A JP2003193569A (en) | 2003-07-09 |
JP3678358B2 true JP3678358B2 (en) | 2005-08-03 |
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JP2001401346A Expired - Lifetime JP3678358B2 (en) | 2001-12-28 | 2001-12-28 | Reinforcing bar joint structure |
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JP (1) | JP3678358B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106245766B (en) * | 2016-09-23 | 2018-07-03 | 沈阳建筑大学 | Self-expanding friction-type steel pipe connection structure and assemble method |
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2001
- 2001-12-28 JP JP2001401346A patent/JP3678358B2/en not_active Expired - Lifetime
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JP2003193569A (en) | 2003-07-09 |
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