JPS6218766B2 - - Google Patents
Info
- Publication number
- JPS6218766B2 JPS6218766B2 JP19218682A JP19218682A JPS6218766B2 JP S6218766 B2 JPS6218766 B2 JP S6218766B2 JP 19218682 A JP19218682 A JP 19218682A JP 19218682 A JP19218682 A JP 19218682A JP S6218766 B2 JPS6218766 B2 JP S6218766B2
- Authority
- JP
- Japan
- Prior art keywords
- outer tube
- joint
- steel
- flat plate
- steel pipe
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
【発明の詳細な説明】 本発明は、鋼管の継手に関するものである。[Detailed description of the invention] The present invention relates to a joint for steel pipes.
従来、鋼管の継手としては、第１図、第２図に
示すものが知られている。 Conventionally, as joints for steel pipes, those shown in FIGS. 1 and 2 are known.
この継手は、鋼管１の端部に平板状の継手部２
を有し、この継手部２に孔３が形成されたもので
ある。 This joint has a flat joint part 2 at the end of a steel pipe 1.
This joint part 2 has a hole 3 formed therein.
この継手は、高力ボルトやリベツト等の結合部
材４によつてガセツトプレート５と結合されるも
のである。 This joint is connected to a gusset plate 5 by a connecting member 4 such as a high-strength bolt or rivet.
ところで、この従来の鋼管の継手は、一面剪断
であり、かつ鋼管１の中心軸線６が、継手部２と
ガセツトプレート５との結合面からずれている
（いわゆる偏心した）継手であるので、剪断に対
する継手部２の耐力およびリベツト等の結合部材
４の耐力上不利であり、耐力の不足を補おうとす
る場合に、継手部２の肉厚を厚くしたり、リベツ
ト等の結合部材４の径を大きくしなければならな
いという点で不経済であるという問題点がある。 By the way, this conventional steel pipe joint is one-plane sheared, and is a joint in which the central axis 6 of the steel pipe 1 is offset from the joining surface of the joint part 2 and the gusset plate 5 (so-called eccentric joint). This is disadvantageous in terms of the strength of the joint 2 and the strength of the connecting member 4 such as rivets against shearing, and when trying to compensate for the lack of strength, it is necessary to increase the thickness of the joint 2 or increase the diameter of the joint member 4 such as a rivet. The problem is that it is uneconomical in that it requires a large size.
本発明は、上記事情に鑑みて提案されたもの
で、二面剪断で、かつ継手部を構成する２つの平
板部が鋼管の中心軸線を通る仮想平面に対して対
称である鋼管の継手を提供することを目的とする
もので、その特徴は、鋼管の外管の端部に、継手
部を構成する２つの平板部を上記外管の中心軸線
を通る仮想平面に対して対称に形成すると共に、
上記外管の内部に、その先端部が同外管の開口部
を閉塞するように鋼製の内管を密嵌固定した点に
ある。 The present invention has been proposed in view of the above circumstances, and provides a joint for steel pipes that is sheared in two planes and in which two flat plate parts constituting the joint part are symmetrical with respect to an imaginary plane passing through the central axis of the steel pipe. Its characteristics are that two flat plate parts constituting the joint part are formed at the end of the outer pipe of the steel pipe symmetrically with respect to an imaginary plane passing through the central axis of the outer pipe. ,
A steel inner tube is tightly fitted and fixed inside the outer tube so that its tip closes the opening of the outer tube.
以下、本発明の実施例を第３図〜第５図を参照
して説明する。 Embodiments of the present invention will be described below with reference to FIGS. 3 to 5.
図において、符号７は鋼製の外管であり、この
外管７の端部８には、外管７の管状部９に続けて
傾斜部１０が形成されている。 In the figure, reference numeral 7 indicates an outer tube made of steel, and an inclined portion 10 is formed at an end portion 8 of the outer tube 7 following a tubular portion 9 of the outer tube 7.
この傾斜部１０は、前記外管７の端部８の突出
する方向（図中右方向）に向うに従い、前記管状
部９に続けて同管状部９の中心軸線１１を通る仮
想平面に向つて漸次接近するように形成されてい
る。 The inclined portion 10 extends in the direction in which the end portion 8 of the outer tube 7 protrudes (to the right in the figure), continues from the tubular portion 9 toward a virtual plane passing through the central axis 11 of the tubular portion 9. They are formed so that they gradually approach each other.
さらに、前記傾斜部１０の傾斜端１２から上記
仮想平面に対して対称に、同平面に沿つて上記突
出方向に延びる２枚の平板部１３，１４が形成さ
れている。 Further, two flat plate portions 13 and 14 are formed from the inclined end 12 of the inclined portion 10 symmetrically with respect to the virtual plane and extend in the protruding direction along the same plane.
この平板部１３，１４のそれぞれには、リベツ
トや高力ボルト等の結合部材用の連結孔１５があ
けられており、同平板部１３，１４はガセツトプ
レート１６と結合する継手部１７を構成してい
る。 A connecting hole 15 for a connecting member such as a rivet or a high-strength bolt is bored in each of the flat plate parts 13 and 14, and the flat plate parts 13 and 14 form a joint part 17 that is connected to a gusset plate 16. are doing.
前記外管７の内部には、上記管状部９及び傾斜
部１０に沿つて鋼製の内管１８が密嵌固定されて
いる。 A steel inner tube 18 is tightly fitted and fixed inside the outer tube 7 along the tubular portion 9 and the inclined portion 10 .
この内管１８の管状部１９に続けて形成された
傾斜部２０の先端部２１が、前記外管７の開口部
２２を閉塞するように、前記内管１８は外管７の
内部に密嵌固定されている。 The inner tube 18 is tightly fitted inside the outer tube 7 so that the tip 21 of the inclined portion 20 formed following the tubular portion 19 of the inner tube 18 closes the opening 22 of the outer tube 7. Fixed.
つぎに、上述した実施例の鋼管の継手を作る方
法の一例を第６図、第７図を参照して説明する。 Next, an example of a method for making the steel pipe joint of the above-described embodiment will be explained with reference to FIGS. 6 and 7.
まず、鋼製の外管７内に内管１８を嵌装し、こ
の内管１８に隣接すると共に、端部２３ａが外管
７の端部７ａから突出するように第２内管２３を
前記外管７内に嵌装する（第６図参照）。 First, the inner tube 18 is fitted into the outer tube 7 made of steel, and the second inner tube 23 is attached so that it is adjacent to the inner tube 18 and the end 23a protrudes from the end 7a of the outer tube 7. Fit it into the outer tube 7 (see Fig. 6).
つぎに、前記内管１８の少くとも一部及び前記
第２内管２３の全部を含む箇所の外管７を内管１
８及び第２内管２３の内周面が接するまでプレス
加工する（第７図参照）。２４はこのプレス加工
により外管７の外周部に生じたプレスラインであ
る。 Next, the outer tube 7 at a portion including at least a portion of the inner tube 18 and all of the second inner tube 23 is removed from the inner tube 1.
8 and the inner peripheral surfaces of the second inner tube 23 are pressed until they are in contact with each other (see FIG. 7). Reference numeral 24 denotes a press line formed on the outer periphery of the outer tube 7 by this press working.
このプレス加工後に、上記第２内管２３をその
端部２３ａを把持して、外管７から引き抜く。そ
して、第２内管２２が引き抜かれた箇所の外管７
の両側部７ｂ，７ｂを切り除く。 After this press working, the second inner tube 23 is pulled out from the outer tube 7 by grasping its end 23a. Then, the outer tube 7 is located at the location where the second inner tube 22 is pulled out.
Cut off both side parts 7b, 7b.
これにより、外管７の端部に、上記仮想平面に
対して対称に同平面に沿つて延びる前記平板部１
３，１４が形成される。 As a result, the flat plate portion 1 is provided at the end of the outer tube 7 symmetrically with respect to the imaginary plane and extends along the same plane.
3 and 14 are formed.
以上述べた方法によつて、第３図〜第５図に示
すような、二面剪断で、且つ継手部１７を形成す
る２つの平板部１３，１４が上記仮想平面に対し
て対称である鋼管の継手を作ることができる。 By the method described above, a steel pipe, as shown in FIGS. 3 to 5, is sheared in two planes and in which the two flat plate parts 13 and 14 forming the joint part 17 are symmetrical with respect to the virtual plane. can make joints.
この鋼管の継手をガセツトプレート１６と結合
するには、上記２つの平板部１３，１４の間に、
ガセツトプレート１６を第５図に示すように挿入
して、高力ボルトまたはリベツト等の結合部材を
連結孔１５に通すことにより、鋼管の継手とガセ
ツトプレート１６とを結合することができる。 In order to connect this steel pipe joint to the gusset plate 16, between the two flat plate parts 13 and 14,
By inserting the gusset plate 16 as shown in FIG. 5 and passing a connecting member such as a high-strength bolt or rivet through the connecting hole 15, the joint of the steel pipe and the gusset plate 16 can be connected.
以上述べたように、本発明による鋼管の継手
は、二面剪断であると共に、継手部を構成する２
つの平板部が鋼管の中心軸線を通る仮想平面に対
して対称であるので、剪断に対する鋼管や高力ボ
ルト、リベツト等の結合部材の耐力上有利である
と共に経済上も有利である。 As described above, the steel pipe joint according to the present invention is two-plane shear, and the two
Since the two flat plate portions are symmetrical with respect to an imaginary plane passing through the central axis of the steel pipe, this is advantageous in terms of the strength of the steel pipe, high-strength bolts, rivets, and other connecting members against shearing, and is also advantageous economically.
さらにまた、本発明によれば、鋼管内に内管が
密嵌固定されているので、同内管が鋼管の傾斜部
を補強するという効果がある。 Furthermore, according to the present invention, since the inner pipe is tightly fitted and fixed within the steel pipe, the inner pipe has the effect of reinforcing the inclined portion of the steel pipe.
第１図及び第２図は従来の鋼管の継手の平面
図、第３図〜第５図は本発明の実施例を示す図で
あつて、第３図は鋼管の継手の平面図、第４図は
第３図の−矢視断面図、第５図は鋼管の継手
の側面図、第６図及び第７図は、第３図〜第５図
に示す鋼管の継手を作る方法を示す説明図であ
る。
７…鋼製の外管、９…外管の管状部、１０…外
管の傾斜部、１１…管状部の中心軸線、１３，１
４…平板部、１５…連結孔、１８…内管。
1 and 2 are plan views of a conventional steel pipe joint, and FIGS. 3 to 5 are views showing an embodiment of the present invention, and FIG. 3 is a plan view of a steel pipe joint, and FIG. The figure is a sectional view taken along the - arrow in FIG. 3, FIG. 5 is a side view of the steel pipe joint, and FIGS. 6 and 7 are explanations showing how to make the steel pipe joints shown in FIGS. 3 to 5. It is a diagram. 7... Steel outer tube, 9... Tubular portion of outer tube, 10... Inclined portion of outer tube, 11... Central axis of tubular portion, 13, 1
4...Flat plate part, 15...Connecting hole, 18...Inner pipe.
Claims (1)
に向うに従い、管状部に続けて同管状部の中心軸
線を通る仮想平面に向つて漸次接近するように傾
斜する傾斜部を形成すると共に、同傾斜部の傾斜
端から上記平面に対して対称に同平面に沿つて上
記方向に延びる２枚の平板部を形成し、前記外管
の内部に、上記管状部および傾斜部に沿い、その
先端部が同外管の開口部を閉塞する鋼製の内管を
密嵌固定し、上記外管の２枚の平板部にそれぞれ
連結孔を形成してなる鋼管の継手。1 At the end of the steel outer tube, in the direction in which the end protrudes, an inclined part is provided so as to gradually approach an imaginary plane that continues from the tubular part and passes through the central axis of the tubular part. At the same time, forming two flat plate portions extending in the above direction along the same plane symmetrically with respect to the plane from the inclined end of the inclined portion, and forming inside the outer tube, the tubular portion and the inclined portion. A steel pipe joint in which a steel inner pipe whose tip end closes an opening of an outer pipe is tightly fitted and fixed along the outer pipe, and connection holes are formed in each of two flat plate parts of the outer pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19218682A JPS5983819A (en) | 1982-11-01 | 1982-11-01 | Joint of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19218682A JPS5983819A (en) | 1982-11-01 | 1982-11-01 | Joint of steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5983819A JPS5983819A (en) | 1984-05-15 |
| JPS6218766B2 true JPS6218766B2 (en) | 1987-04-24 |
Family
ID=16287105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19218682A Granted JPS5983819A (en) | 1982-11-01 | 1982-11-01 | Joint of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5983819A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0383653U (en) * | 1989-12-15 | 1991-08-26 |
-
1982
- 1982-11-01 JP JP19218682A patent/JPS5983819A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0383653U (en) * | 1989-12-15 | 1991-08-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5983819A (en) | 1984-05-15 |
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