JP2008101749A - Coupling member of steel pipe - Google Patents

Coupling member of steel pipe Download PDF

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Publication number
JP2008101749A
JP2008101749A JP2006286557A JP2006286557A JP2008101749A JP 2008101749 A JP2008101749 A JP 2008101749A JP 2006286557 A JP2006286557 A JP 2006286557A JP 2006286557 A JP2006286557 A JP 2006286557A JP 2008101749 A JP2008101749 A JP 2008101749A
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Japan
Prior art keywords
cylinder
window
steel pipe
outer cylinder
hole
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JP2006286557A
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Japanese (ja)
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Yoshio Wakamei
若命善雄
Tomoyuki Narata
楢田智之
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SEKKEISHITSU SOIL KK
Soil Design Co Ltd
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SEKKEISHITSU SOIL KK
Soil Design Co Ltd
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Priority to JP2006286557A priority Critical patent/JP2008101749A/en
Publication of JP2008101749A publication Critical patent/JP2008101749A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a coupling member of a steel pipe in which no shear break generated in the case of a bolt hole opening occurs. <P>SOLUTION: The coupling member, connecting two steel pipes coaxially, is constituted by double tubes in which the inner tube is located inside the outer tube and provided with screw holes radially in the outer tube and keeps windows opened at locations corresponding to the screw holes in the inner hole. The opening cross section of this window is formed so that it may be enlarged toward the center of the tube, and an edge of outer tube side of the window is formed in acute angle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、鋼管の継手部材に関するものである。   The present invention relates to a steel pipe joint member.

回転力を伝える鋼管を、同一軸線上で接続して延長することが必要な場合がある。
その場合に、簡単な構造はネジによる接続、溶接による接続、あるいはピンを貫通させる接続などが、文献を挙げるまでもなく公知である。
It may be necessary to connect and extend steel pipes that transmit rotational force on the same axis.
In that case, a simple structure such as a screw connection, a welding connection, or a connection penetrating a pin is well known without mentioning literature.

前記した従来の鋼管の継手部材にあっては、次のような問題点がある。
＜１＞ ２本の鋼管の端部を直接溶接して連結する方法は、溶接に専門の溶接工を必要とし、熟練と時間がかかり、雨天では作業ができないなど、不経済である。
＜２＞ 鋼管の端部にネジ筒を溶接し、このネジ筒によって接続する継手構造は、オス、メスのネジ筒を溶接する作業が必要であり、かつ反対方向に回転を与えると鋼管間の接続が解体してしまうという問題がある。
The above-described conventional steel pipe joint member has the following problems.
<1> The method of directly welding and connecting the ends of two steel pipes requires a special welder for welding, requires skill and time, and is uneconomical because it cannot be performed in rainy weather.
<2> The joint structure in which the screw tube is welded to the end of the steel pipe and connected by this screw cylinder requires the work of welding the male and female screw cylinders, and if rotation is applied in the opposite direction, There is a problem that the connection is broken.

上記のような課題を解決するために本発明の鋼管の継手部材は、同一軸線上に２本の鋼管を接続する継手部材であって、外筒の内部に内筒が位置する二重筒によって構成し、外筒には筒の中心軸に向けたネジ穴を設け、内筒には、ネジ穴に対応する位置に窓を開口し、この窓の開口断面は、筒の中心に向けて広くなるように形成し、窓の外筒側の縁は鋭角に形成した、鋼管の継手部材を特徴としたものである。   In order to solve the above-described problems, a steel pipe joint member according to the present invention is a joint member for connecting two steel pipes on the same axis, and is a double cylinder in which an inner cylinder is located inside an outer cylinder. The outer cylinder is provided with a screw hole directed toward the central axis of the cylinder, the inner cylinder is provided with a window at a position corresponding to the screw hole, and the opening cross section of the window is widened toward the center of the cylinder. The outer tube side edge of the window is formed with an acute angle and is characterized by a steel pipe joint member.

さらに本発明は、同一軸線上に２本の鋼管を接続する継手部材であって、外筒の内部に内筒が位置する二重筒によって構成し、外筒には筒の中心軸に向けた貫通穴を設け、貫通穴の内側には、ナットを収納するナット座を凹設し、内筒には、ナット座に対応する位置に窓を開口し、この窓の開口断面は、筒の中心軸に向けて広く形成し、窓の外筒側の縁は鋭角に形成した、鋼管の継手部材を特徴としたものである。   Furthermore, the present invention is a joint member for connecting two steel pipes on the same axis, and is constituted by a double cylinder in which the inner cylinder is positioned inside the outer cylinder, and the outer cylinder is directed to the central axis of the cylinder A through hole is provided, and a nut seat for receiving the nut is recessed inside the through hole, and a window is opened in the inner cylinder at a position corresponding to the nut seat. It is characterized by a steel pipe joint member that is formed widely toward the shaft and has an edge on the outer cylinder side of the window formed at an acute angle.

さらに本発明は、同一軸線上に２本の鋼管を接続する継手部材であって、外筒の内部に内筒が位置する二重筒と、外筒の外側に嵌合可能な反力リングによって構成し、外筒には筒の中心軸に向けた貫通穴を設け、反力リングには、反力リングを外筒の外側に嵌合した際に貫通穴に対応する位置に挿入孔を設け、挿入孔の内側には、ナットを収納するナット座を凹設し、内筒には、ナット座に対応する位置に窓を開口し、この窓の開口断面は、筒の中心軸に向けて広く形成し、窓の外筒側の縁は鋭角に形成した鋼管の継手部材を特徴としたものである。
Furthermore, the present invention is a joint member that connects two steel pipes on the same axis, and includes a double cylinder in which the inner cylinder is positioned inside the outer cylinder, and a reaction force ring that can be fitted to the outside of the outer cylinder. The outer cylinder is provided with a through hole toward the central axis of the cylinder, and the reaction force ring is provided with an insertion hole at a position corresponding to the through hole when the reaction force ring is fitted to the outside of the outer cylinder. A nut seat for accommodating the nut is recessed inside the insertion hole, and a window is opened in the inner cylinder at a position corresponding to the nut seat, and the opening cross section of this window faces the central axis of the cylinder. Widely formed, the outer cylinder side edge of the window is characterized by a steel pipe joint member formed at an acute angle.

本発明の鋼管の継手部材は以上説明したようになるから次のような効果を得ることができる。
＜１＞ 鋼管を溶接したり、穴を開けるような加工をしないで、継手治具のみを用いて迅速に接続することができる。すなわち鋼管には一切、加工することなく、接続できる点が大きな特徴である。
＜２＞ 鋼管を左右のいずれの方向に回転しても、ネジのように解体してしまうことがない。
＜３＞ 鋼管を接続する作業が簡単であり、熟練や長い時間を要しないから経済的である。
＜４＞ 回転力の伝達は、鋼管が窓内に膨出して食い込む変形面で伝達するから、ボルト穴を開口した場合のような、せん断破壊の心配がない。
＜５＞ 鋼管は、外筒と内筒の間の狭い空間の内部において、窓の部分で膨張して変形しているから、広い接触面で摩擦を得ることができ、その上に鋭角に形成した窓の鉛直縁が鋼管に食い込んでいるから大きな回転力であっても確実に伝達することができる。
Since the steel pipe joint member of the present invention is as described above, the following effects can be obtained.
<1> It is possible to quickly connect using only the joint jig without welding the steel pipe or making a hole. That is, it is a great feature that it can be connected to a steel pipe without any processing.
<2> Even if the steel pipe is rotated in either the left or right direction, it is not disassembled like a screw.
<3> The work of connecting the steel pipes is simple and economical because it does not require skill or a long time.
<4> Since the transmission of the rotational force is transmitted through a deformed surface in which the steel pipe bulges into the window, there is no fear of shear fracture as in the case of opening a bolt hole.
<5> Since the steel pipe expands and deforms at the window portion inside the narrow space between the outer cylinder and the inner cylinder, friction can be obtained with a wide contact surface, and an acute angle is formed on it. Since the vertical edge of the window bites into the steel pipe, even a large rotational force can be reliably transmitted.

以下図面を参照にしながら本発明の好適な実施の形態を詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

＜１＞本発明の用途。
本発明は、図６に示すように、２本の鋼管Ａ、すなわち下側の鋼管Ａ１の上端に、上側の鋼管Ａ２の下端を同一軸線上に接続する際に使用する継手部材Ｂである。
本発明の継手部材Ｂによって接続した２本の鋼管Ａは、上側の鋼管Ａ２を吊り上げても下側の鋼管Ａ１が離れないだけではなく、上側の鋼管Ａ２に加えた回転力を下側の鋼管Ａ１へ伝達することができる。 <1> Use of the present invention.
As shown in FIG. 6, the present invention is a joint member B that is used when two steel pipes A, that is, the lower end of the lower steel pipe A1 are connected to the lower end of the upper steel pipe A2 on the same axis.
The two steel pipes A connected by the joint member B of the present invention are not only separated from the lower steel pipe A1 even when the upper steel pipe A2 is lifted, but also the rotational force applied to the upper steel pipe A2 is applied to the lower steel pipe A2. Can be transmitted to A1.

＜２＞二重筒。
本発明の継手部材Ｂは、貫通した鋼製の筒体である外筒１と内筒２によって構成する。
すなわち、外筒１の内部に、同心円状に内筒２を位置させた二重筒である。
外筒１と内筒２との間には鍔状の連結棚板３を介在させ、この連結棚板３で連結して一体に構成することができる。
外筒１の内面と内筒２の外面との間隔は、接続する対象の鋼管Ａの板厚よりも多少、広い間隔を設ける。
その結果、二重筒の上からと下から、外筒１と内筒２との間に別の鋼管Ａを挿入して同一軸線上に配置することができる。 <2> Double cylinder.
The joint member B of the present invention is constituted by an outer cylinder 1 and an inner cylinder 2 which are steel cylinders penetrating.
That is, it is a double cylinder in which the inner cylinder 2 is positioned concentrically inside the outer cylinder 1.
Between the outer cylinder 1 and the inner cylinder 2, a bowl-shaped connection shelf 3 is interposed, and the connection shelf 3 can be connected to form an integral structure.
The distance between the inner surface of the outer cylinder 1 and the outer surface of the inner cylinder 2 is slightly larger than the thickness of the steel pipe A to be connected.
As a result, it is possible to insert another steel pipe A between the outer cylinder 1 and the inner cylinder 2 from above and below the double cylinder and arrange them on the same axis.

＜３＞外筒１。
外筒１の内径は、接続予定の鋼管Ａを容易に挿入できるように、鋼管Ａの外径よりも多少大きい寸法に形成する。
外筒１には適宜の位置に、外筒１の中心軸に向けたネジ穴１１を設ける。
このネジ穴１１に、外筒１の外側からボルト１２をねじ込んで、外筒１の内部に挿入した鋼管Ａに変形を与える。 <3> Outer cylinder 1.
The inner diameter of the outer cylinder 1 is formed to be slightly larger than the outer diameter of the steel pipe A so that the steel pipe A to be connected can be easily inserted.
The outer cylinder 1 is provided with a screw hole 11 at an appropriate position toward the central axis of the outer cylinder 1.
A bolt 12 is screwed into the screw hole 11 from the outside of the outer cylinder 1 to deform the steel pipe A inserted into the outer cylinder 1.

＜４＞内筒２。
内筒２の外径は、接続予定の鋼管Ａの内部に容易に挿入できるように、鋼管Ａの内径よりも多少、小さい寸法に形成する。
内筒２には窓２１を開口する。
この窓２１の位置は、外筒１に設けたネジ穴１１の軸線上に、すなわちネジ穴１１に対応する位置に開口する。
この窓２１の開口断面は、筒の中心に向けて広くなるように、すなわち内広がり状に形成する。
したがってこの窓２１の外筒１側の縁２２は鋭角に形成されることになる。 <4> Inner cylinder 2.
The outer diameter of the inner cylinder 2 is formed to be slightly smaller than the inner diameter of the steel pipe A so that it can be easily inserted into the steel pipe A to be connected.
A window 21 is opened in the inner cylinder 2.
The window 21 is opened on the axis of the screw hole 11 provided in the outer cylinder 1, that is, at a position corresponding to the screw hole 11.
The opening cross section of the window 21 is formed so as to become wider toward the center of the cylinder, that is, inwardly spreading.
Therefore, the edge 22 on the outer cylinder 1 side of the window 21 is formed at an acute angle.

＜５＞継手方法。
次に本発明の継手部材Ｂを使用した鋼管Ａの接続方法について説明する。 <5> Joint method.
Next, the connection method of the steel pipe A using the joint member B of this invention is demonstrated.

＜６＞鋼管Ａの挿入。
すでに鉛直に設置した先行する鋼管Ａ１の上端に、本発明の継手部材Ｂの下部を嵌合する。
すなわち先行鋼管Ａ１の上端が、継手部材Ｂの下部の外筒１と内筒２との間に挿入する状態で嵌合する。
次いで、継手部材Ｂの上部から、接続する鋼管Ａ２の下部を挿入する。
すなわち接続鋼管Ａ２の下端が、継手部材Ｂの上部の外筒１と内筒２との間に挿入する状態で嵌合する。
その場合に外筒１と内筒２との間をリング状の連結棚板３で連結してあるから、鋼管Ａ１、Ａ２の端部は連結棚板３に当接して挿入寸法が決まることになる。 <6> Insertion of steel pipe A.
The lower part of the joint member B of the present invention is fitted to the upper end of the preceding steel pipe A1 that has already been installed vertically.
That is, the upper end of the preceding steel pipe A1 is fitted in a state of being inserted between the outer cylinder 1 and the inner cylinder 2 below the joint member B.
Next, the lower part of the steel pipe A2 to be connected is inserted from the upper part of the joint member B.
That is, the lower end of the connection steel pipe A2 is fitted in a state of being inserted between the outer cylinder 1 and the inner cylinder 2 at the upper part of the joint member B.
In that case, since the outer cylinder 1 and the inner cylinder 2 are connected by the ring-shaped connecting shelf 3, the end portions of the steel pipes A1 and A2 are in contact with the connecting shelf 3 and the insertion dimension is determined. Become.

＜７＞ボルト１２による加圧。
継手部材Ｂに鋼管Ａを挿入することによって、ネジ穴１１と窓２１との間には鋼管Ａが位置している。
このネジ穴１１にボルト１２をねじ込む。
ボルト１２の先端はすぐに鋼管Ａの外面に当接するが、ボルト１２を強力にねじ込むことによって、その推進力により鋼管Ａの一部が窓２１側へ膨出する状態で変形する。
窓２１の縁２２は鋭角に切り立っているから、特に変形がなされ易い。
継手部材Ｂのすべてのネジ穴１１に、強力にボルト１２をねじ込むことによって、下側に位置する先行する鋼管Ａと、上に位置する接続する鋼管Ａとは継手部材Ｂを介して同一線上に一体に接続されることになる。 <7> Pressurization with bolts 12.
By inserting the steel pipe A into the joint member B, the steel pipe A is positioned between the screw hole 11 and the window 21.
Bolts 12 are screwed into the screw holes 11.
The tip of the bolt 12 immediately comes into contact with the outer surface of the steel pipe A. However, when the bolt 12 is screwed in strongly, a part of the steel pipe A is deformed in a state where it bulges to the window 21 side by the driving force.
Since the edge 22 of the window 21 is sharpened at an acute angle, it is particularly easily deformed.
The bolt 12 is strongly screwed into all the screw holes 11 of the joint member B, so that the preceding steel pipe A located on the lower side and the steel pipe A connected on the upper side are collinear with each other via the joint member B. They will be connected together.

＜８＞力の伝達。
以上のように構成すると、上側の鋼管Ａから下側の鋼管Ａへの鉛直方向の力は、中間の棚板を介して下側の鋼管Ａに伝達する。
また鋼管Ａを持ち上げた場合にも、窓２１内へ膨出した膨出部が抵抗となり、水平方向の縁２２が鋼管Ａへ食い込んで抵抗して抜け出しを阻止することができる。
回転力は、窓２１の内側に向けて変形した鋼管Ａの膨出部が、窓２１の鉛直方向の縁２２に食い込んで、確実に回転力を伝達する。
さらに外筒１と内筒２の間の狭い隙間に挿入した鋼管Ａは、窓２１の位置で内側へ膨張して変形しているから、水平断面で見ても窓２１の両側において広い延長線で内外筒に接して大きな摩擦を得ることがでる。 <8> Force transmission.
If comprised as mentioned above, the force of the perpendicular direction from the upper steel pipe A to the lower steel pipe A will be transmitted to the lower steel pipe A via an intermediate shelf board.
Further, even when the steel pipe A is lifted, the bulging portion that bulges into the window 21 becomes resistance, and the horizontal edge 22 bites into the steel pipe A and resists it, thereby preventing it from coming out.
As for the rotational force, the bulging portion of the steel pipe A deformed toward the inside of the window 21 bites into the edge 22 in the vertical direction of the window 21 and reliably transmits the rotational force.
Furthermore, since the steel pipe A inserted into the narrow gap between the outer cylinder 1 and the inner cylinder 2 is expanded and deformed inward at the position of the window 21, a wide extension line on both sides of the window 21 even when viewed in a horizontal section. In this way, a large friction can be obtained by contacting the inner and outer cylinders.

＜９＞他の実施例１。（図４）
以上の例では外筒１にネジ穴１１を開設する構成であった。
しかし、外筒１に直接ネジ穴１１を開設しない構成を採用することもできる。
すなわち外筒１にはネジ穴１１に代えて、ネジの切っていない、貫通穴１３を筒の中心軸に向けて開口する。
そして貫通穴１３の内側には、貫通穴１３の断面よりも大きい面積の凹みである、ナット座１４を凹設する。
このナット座１４は、例えば六角形に形成し、そのナット座１４へ市販の安価なナット１５を収納できるように構成する。
内筒２には、ナット座１４に対応する位置に窓２１を開口し、この窓２１の開口断面は、筒の中心軸に向けて広く形成し、窓２１の外筒１側の縁２２は鋭角に形成する。
すなわち内筒２の構成は前記の実施例と同じである。
この実施例の場合には、継手部材Ｂへの鋼管Ａの挿入の前に、窓１５側からナットを挿入してナット座１４にナット１５を嵌合しておく。
そしてこのナット１５に対して、外部からボルト１２をねじ込む。
ボルト１２の回転による推進力によって鋼管Ａの一部を変形させて窓２１側へ膨出させる作用は、前記の実施例と同じである。
こうして外筒１にネジ穴１１を形成することなく、ナット座１４に嵌合した安価な市販のナット１５を使用してボルト１２の推進力の反力を取って鋼管Ａを変形させ、接続することができる。 <9> Other Embodiment 1. (Fig. 4)
In the above example, the screw hole 11 is opened in the outer cylinder 1.
However, a configuration in which the screw hole 11 is not directly opened in the outer cylinder 1 can be employed.
That is, instead of the screw hole 11, the outer cylinder 1 is opened with a through hole 13 that is not threaded toward the central axis of the cylinder.
A nut seat 14, which is a recess having a larger area than the cross section of the through hole 13, is provided inside the through hole 13.
The nut seat 14 is formed in a hexagonal shape, for example, and is configured so that a commercially available nut 15 can be stored in the nut seat 14.
A window 21 is opened in the inner cylinder 2 at a position corresponding to the nut seat 14, and the opening cross section of the window 21 is formed wide toward the central axis of the cylinder, and the edge 22 of the window 21 on the outer cylinder 1 side is Form an acute angle.
That is, the configuration of the inner cylinder 2 is the same as that in the above embodiment.
In this embodiment, before inserting the steel pipe A into the joint member B, a nut is inserted from the window 15 side and the nut 15 is fitted to the nut seat 14.
Then, the bolt 12 is screwed into the nut 15 from the outside.
The action of deforming a part of the steel pipe A by the propulsive force generated by the rotation of the bolt 12 and causing the steel pipe A to bulge toward the window 21 is the same as in the above-described embodiment.
Thus, without forming the screw hole 11 in the outer cylinder 1, the steel pipe A is deformed and connected by using the reaction force of the driving force of the bolt 12 using an inexpensive commercially available nut 15 fitted to the nut seat 14. be able to.

＜１０＞他の実施例２．（図５右）
この実施例では外筒１にはネジ穴１１を設けず、さらにナット座１４も設けず、単なる貫通穴１３だけを開口する。
内筒２には、貫通穴１３に対応する位置に窓２１を開口し、この窓２１の開口断面は、筒の中心軸に向けて広く形成し、窓２１の外筒１側の縁２２は鋭角に形成する。
一方、外筒１の外側に嵌合可能な反力リング４を使用する。
この反力リング4は一定の厚さと幅を有する鋼製の短筒であり、その内径は、外筒１の外径とほぼ等しく形成し、外筒１の外周に容易に嵌合しうるように構成する。
そしてこの反力リング４には、反力リング４を外筒１の外側に嵌合した際に貫通穴１３に対応する位置に挿入孔４１を設けておく。
この挿入孔４１は、ボルト１２の直径よりも大きく、しかしナットの外径よりも小さい内径を有する穴であり、反力リング４を貫通している。
この実施例では、特に外筒１の貫通穴１３の直径を、市販のナット１５が挿入できる程度の大きさに形成する点に特徴を有する。
鋼管Ａを接続する場合には、反力リング４を外筒１の外周に嵌合しておき、鋼管Ａの端部を、外筒１と内筒２の間の隙間に挿入する。
そして外筒１の貫通穴１３にナット１５をセットして、反力リング４の挿入孔４１の位置と外筒１の貫通穴１３の位置を一致させる。
そして挿入孔４１にボルト１２を挿入する。
ボルト１２は反力リング４の挿入孔４１を通過し、貫通穴１３に収納したナット１５にネジ込まれる。
このボルト１２の推進力が鋼管Ａを加圧して窓２１の内部に膨出させ、水平方向の縁２２と鉛直方向の縁２２とが膨出部に食い込む機能は、他の実施例と同じである。
このように、外筒１にも反力リング４にもネジ穴を形成することなく、市販のナット１５を貫通穴１３内に嵌合してボルト１２の推進力の反力を反力リング４から得て、鋼管Ａを変形させ、接続することができる。 <10> Other Embodiment 2 (Figure 5 right)
In this embodiment, the outer cylinder 1 is not provided with the screw hole 11, and the nut seat 14 is not provided, and only the through hole 13 is opened.
A window 21 is opened in the inner cylinder 2 at a position corresponding to the through hole 13, and the opening cross section of the window 21 is formed wide toward the central axis of the cylinder, and the edge 22 of the window 21 on the outer cylinder 1 side is Form an acute angle.
On the other hand, a reaction force ring 4 that can be fitted to the outside of the outer cylinder 1 is used.
This reaction force ring 4 is a steel short cylinder having a constant thickness and width, and its inner diameter is formed to be substantially equal to the outer diameter of the outer cylinder 1 so that it can be easily fitted to the outer periphery of the outer cylinder 1. Configure.
The reaction force ring 4 is provided with an insertion hole 41 at a position corresponding to the through hole 13 when the reaction force ring 4 is fitted to the outside of the outer cylinder 1.
The insertion hole 41 is a hole having an inner diameter larger than the diameter of the bolt 12 but smaller than the outer diameter of the nut, and penetrates the reaction force ring 4.
This embodiment is particularly characterized in that the diameter of the through hole 13 of the outer cylinder 1 is formed to a size that allows a commercially available nut 15 to be inserted.
When connecting the steel pipe A, the reaction ring 4 is fitted to the outer periphery of the outer cylinder 1, and the end of the steel pipe A is inserted into the gap between the outer cylinder 1 and the inner cylinder 2.
Then, the nut 15 is set in the through hole 13 of the outer cylinder 1 so that the position of the insertion hole 41 of the reaction force ring 4 matches the position of the through hole 13 of the outer cylinder 1.
Then, the bolt 12 is inserted into the insertion hole 41.
The bolt 12 passes through the insertion hole 41 of the reaction force ring 4 and is screwed into the nut 15 accommodated in the through hole 13.
The propulsive force of the bolt 12 pressurizes the steel pipe A to bulge into the window 21, and the function of the horizontal edge 22 and the vertical edge 22 biting into the bulging portion is the same as in the other embodiments. is there.
Thus, without forming a screw hole in either the outer cylinder 1 or the reaction force ring 4, a commercially available nut 15 is fitted into the through hole 13, and the reaction force of the driving force of the bolt 12 is increased. The steel pipe A can be deformed and connected.

＜１１＞他の実施例３．（図５左）
この実施例では外筒１にはネジ穴１１もナット座１４も設けず、単なる貫通穴１３だけを開口する。
内筒２には、貫通穴１３に対応する位置に窓２１を開口し、この窓２１の開口断面は、筒の中心軸に向けて広く形成し、窓２１の外筒１側の縁２２は鋭角に形成する。
一方、外筒１の外側に嵌合可能な反力リング４を使用する。
この反力リング４は一定の厚さと幅を有する鋼製の短筒であり、その内径は、外筒１の外径とほぼ等しく形成し、外筒１の外周に容易に嵌合しうるように構成する。
そしてこの反力リング４には、反力リング４を外筒１の外側に嵌合した際に貫通穴１３に対応する位置に挿入孔４１を設けておく。
この挿入孔４１は、ボルト１２の直径よりも大きい内径を有する貫通した穴である。
そしてこの挿入孔４１の、内筒２側の面には、ナット１５を収納するための、例えば六角形に凹んだナット１４座を凹設し、市販の安価なナット１５を嵌合できるように構成する。
鋼管Ａの接続の場合には、反力リング４を外筒１の外周に嵌合する。
そして挿入孔４１にボルト１２を挿入する。
ボルト１２は反力リング４の挿入孔４１を通過し、ナット座１４内のナット１５にネジ込まれる。
このボルト１２の推進力が鋼管Ａを加圧して窓２１の内部に膨出させ、水平方向の縁２２と鉛直方向の縁２２とが膨出部に食い込む機能は、他の実施例と同じである。
このように、外筒１にも反力リング４にもネジ穴を形成することなく、市販のナット１５をナット座１４に嵌合してボルト１２の推進力を得て、鋼管Ａを変形させ、接続することができる。
<11> Other Embodiment 3 (Figure 5 left)
In this embodiment, neither the screw hole 11 nor the nut seat 14 is provided in the outer cylinder 1 and only the through hole 13 is opened.
A window 21 is opened in the inner cylinder 2 at a position corresponding to the through hole 13, and the opening cross section of the window 21 is formed wide toward the central axis of the cylinder, and the edge 22 of the window 21 on the outer cylinder 1 side is Form an acute angle.
On the other hand, a reaction force ring 4 that can be fitted to the outside of the outer cylinder 1 is used.
This reaction force ring 4 is a steel short cylinder having a certain thickness and width, and its inner diameter is formed to be substantially equal to the outer diameter of the outer cylinder 1 so that it can be easily fitted to the outer periphery of the outer cylinder 1. Configure.
The reaction force ring 4 is provided with an insertion hole 41 at a position corresponding to the through hole 13 when the reaction force ring 4 is fitted to the outside of the outer cylinder 1.
The insertion hole 41 is a through hole having an inner diameter larger than the diameter of the bolt 12.
The insertion hole 41 is provided with a nut 14 seat recessed, for example, in a hexagonal shape, for accommodating the nut 15 on the surface on the inner cylinder 2 side so that a commercially available inexpensive nut 15 can be fitted. Constitute.
In the case of connection of the steel pipe A, the reaction force ring 4 is fitted to the outer periphery of the outer cylinder 1.
Then, the bolt 12 is inserted into the insertion hole 41.
The bolt 12 passes through the insertion hole 41 of the reaction force ring 4 and is screwed into the nut 15 in the nut seat 14.
The propulsive force of the bolt 12 pressurizes the steel pipe A to bulge into the window 21, and the function of the horizontal edge 22 and the vertical edge 22 biting into the bulging portion is the same as in the other embodiments. is there.
Thus, without forming a screw hole in the outer cylinder 1 or the reaction force ring 4, a commercially available nut 15 is fitted to the nut seat 14 to obtain the driving force of the bolt 12, and the steel pipe A is deformed. Can be connected.

本発明の継手部材の実施例の切り欠き図。The notch figure of the Example of the coupling member of this invention. 継手部材の要部断面図。Sectional drawing of the principal part of a coupling member. 接続状態の説明図。Explanatory drawing of a connection state. 他の実施例の説明図。Explanatory drawing of another Example. 他の実施例の説明図。Explanatory drawing of another Example. 鋼管と鋼管を接続する作業の説明図。Explanatory drawing of the operation | work which connects a steel pipe and a steel pipe.

符号の説明Explanation of symbols

Ａ：鋼管
Ｂ：継手部材
１：外筒
１１：ネジ穴
１４：ナット座
１５：ナット
２：内筒
２１：窓
２２：縁
４：反力リング A: Steel pipe B: Joint member 1: Outer cylinder 11: Screw hole 14: Nut seat 15: Nut 2: Inner cylinder 21: Window 22: Edge 4: Reaction force ring

Claims (3)

同一軸線上に２本の鋼管を接続する継手部材であって、
外筒の内部に内筒が位置する二重筒によって構成し、
外筒には筒の中心軸に向けたネジ穴を設け、
内筒には、ネジ穴に対応する位置に窓を開口し、
この窓の開口断面は、筒の中心に向けて広くなるように形成し、
窓の外筒側の縁は鋭角に形成した、
鋼管の継手部材。
A joint member connecting two steel pipes on the same axis,
Consists of a double cylinder in which the inner cylinder is located inside the outer cylinder,
The outer cylinder is provided with a screw hole toward the central axis of the cylinder,
Open a window at the position corresponding to the screw hole in the inner cylinder,
The opening cross section of this window is formed to become wider toward the center of the cylinder,
The edge on the outer cylinder side of the window was formed at an acute angle,
Steel pipe joint member.
同一軸線上に２本の鋼管を接続する継手部材であって、
外筒の内部に内筒が位置する二重筒によって構成し、
外筒には筒の中心軸に向けた貫通穴を設け、
貫通穴の内側には、ナットを収納するナット座を凹設し、
内筒には、ナット座に対応する位置に窓を開口し、
この窓の開口断面は、筒の中心軸に向けて広く形成し、
窓の外筒側の縁は鋭角に形成した、
鋼管の継手部材。
A joint member connecting two steel pipes on the same axis,
Consists of a double cylinder in which the inner cylinder is located inside the outer cylinder,
The outer cylinder is provided with a through hole toward the central axis of the cylinder,
A nut seat for storing the nut is recessed inside the through hole,
In the inner cylinder, open a window at a position corresponding to the nut seat,
The opening cross section of this window is formed wide toward the central axis of the cylinder,
The edge on the outer cylinder side of the window was formed at an acute angle,
Steel pipe joint member.
同一軸線上に２本の鋼管を接続する継手部材であって、
外筒の内部に内筒が位置する二重筒と、
外筒の外側に嵌合可能な反力リングによって構成し、
外筒には筒の中心軸に向けた貫通穴を設け、
反力リングには、反力リングを外筒の外側に嵌合した際に貫通穴に対応する位置に挿入孔を設け、
貫通穴の内径はナットを収納できる寸法に構成し、
内筒には、貫通穴に対応する位置に窓を開口し、
この窓の開口断面は、筒の中心軸に向けて広く形成し、
窓の外筒側の縁は鋭角に形成した、
鋼管の継手部材。 A joint member connecting two steel pipes on the same axis,
A double cylinder in which the inner cylinder is positioned inside the outer cylinder;
Consists of a reaction force ring that can be fitted to the outside of the outer cylinder,
The outer cylinder is provided with a through hole toward the central axis of the cylinder,
The reaction ring is provided with an insertion hole at a position corresponding to the through hole when the reaction ring is fitted to the outside of the outer cylinder.
The inner diameter of the through hole is configured to accommodate the nut,
In the inner cylinder, a window is opened at a position corresponding to the through hole,
The opening cross section of this window is formed wide toward the central axis of the cylinder,
The edge on the outer cylinder side of the window was formed at an acute angle,
Steel pipe joint member.
JP2006286557A 2006-10-20 2006-10-20 Coupling member of steel pipe Pending JP2008101749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006286557A JP2008101749A (en) 2006-10-20 2006-10-20 Coupling member of steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006286557A JP2008101749A (en) 2006-10-20 2006-10-20 Coupling member of steel pipe

Publications (1)

Publication Number Publication Date
JP2008101749A true JP2008101749A (en) 2008-05-01

Family

ID=39436227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006286557A Pending JP2008101749A (en) 2006-10-20 2006-10-20 Coupling member of steel pipe

Country Status (1)

Country Link
JP (1) JP2008101749A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010087020A1 (en) * 2009-02-02 2010-08-05 Ｂｅｓｔ・Ｎａｔｕｒｅ株式会社 Tube body connection structure and connection method for tube body connection structure
CN106050851A (en) * 2016-07-18 2016-10-26 长春工程学院 Tool type vertical connecting device for steel tubes mainly on bearing axle centre pressure
CN114056101A (en) * 2021-11-29 2022-02-18 广州电力机车有限公司 Wind source system of electric locomotive

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010087020A1 (en) * 2009-02-02 2010-08-05 Ｂｅｓｔ・Ｎａｔｕｒｅ株式会社 Tube body connection structure and connection method for tube body connection structure
WO2010087036A1 (en) * 2009-02-02 2010-08-05 Ｂｅｓｔ・Ｎａｔｕｒｅ株式会社 Connection structure of tube and method of connecting connection structure of tube
CN106050851A (en) * 2016-07-18 2016-10-26 长春工程学院 Tool type vertical connecting device for steel tubes mainly on bearing axle centre pressure
CN114056101A (en) * 2021-11-29 2022-02-18 广州电力机车有限公司 Wind source system of electric locomotive
CN114056101B (en) * 2021-11-29 2023-08-22 广州电力机车有限公司 Wind source system of electric locomotive

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