JPS6078192A - Method of connecting thin steel pipe and hose - Google Patents
Method of connecting thin steel pipe and hoseInfo
- Publication number
- JPS6078192A JPS6078192A JP59169525A JP16952584A JPS6078192A JP S6078192 A JPS6078192 A JP S6078192A JP 59169525 A JP59169525 A JP 59169525A JP 16952584 A JP16952584 A JP 16952584A JP S6078192 A JPS6078192 A JP S6078192A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- socket
- hose
- thin
- nipple
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は薄肉鋼管とホースの連結方法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for connecting a thin-walled steel pipe and a hose.
(従来技術)
従来より、自動車などにおけるパワーステアリング装置
などにおいては−、油などの圧力流体の給送がホースを
用いて行なわれ、さらに各機構内での圧力流体の移送用
として、たとえば二重巻き鋼管や一重巻き鋼管などの薄
肉鋼管が多く用いられている。これらは肉厚が通常0.
1〜1.210m程度と薄く、軽量であるために、通常
の引抜鋼管や電縫鋼管に比して安価で、かつ曲げなどの
加工が容易であるために、製品のコストダウンをはかる
ことができるという利点を有する。(Prior Art) Conventionally, in power steering systems for automobiles, etc., pressure fluids such as oil have been supplied using hoses, and hoses have been used to transfer pressure fluids within each mechanism, for example. Thin-walled steel pipes such as rolled steel pipes and single-wound steel pipes are often used. These usually have a wall thickness of 0.
Because it is thin and lightweight (approximately 1 to 1.210 m), it is cheaper than ordinary drawn steel pipes and electric resistance welded steel pipes, and it is easy to process such as bending, so it is possible to reduce product costs. It has the advantage of being able to
前記二重巻き鋼管は、通常銅メッキした薄い鋼板を二重
巻きして造管し、ついで炉中で銅を溶融させたのち、表
面を亜鉛メッキして製造され、また前記−重巻き鋼管は
、銅メッキした鋼板を一重巻きして重ね合わされた両側
端を溶接し、ついでレデューシングして焼鈍したのち、
表面を亜鉛メッキして製造されるものである。The above-mentioned double-wound steel pipe is usually produced by double-wound copper-plated thin steel plate, then melting the copper in a furnace, and then galvanizing the surface. , Copper-plated steel plates are wrapped in a single layer and the overlapped ends are welded, then reduced and annealed, and then
It is manufactured by galvanizing the surface.
かかる薄肉鋼管と前記ホースとを連結させるために、通
常の厚肉鋼管のばあいと同じように薄肉鋼管端部の外周
面上にカップ状のソケットを取りつけて該薄肉鋼管の端
部をニップル部として用いようとすれば、ホースの締結
時、すなわちソケッi〜内にホースを挿入後、ソケット
をかしめてホースをソケットに固着させる加工において
、ニップルの中央部付近が内方に湾曲する、いわゆるへ
たりが生じ、そのため圧力流体の洩れをも生じさせる原
因となる。In order to connect such a thin-walled steel pipe and the hose, a cup-shaped socket is attached to the outer circumferential surface of the end of the thin-walled steel pipe and the end of the thin-walled steel pipe is connected to the nipple, as in the case of a normal thick-walled steel pipe. If you try to use it as a nipple, when you tighten the hose, that is, after inserting the hose into the socket, the socket will be crimped to secure the hose to the socket. This also causes leakage of pressure fluid.
そのため、従来より圧力流体用、とくに高圧用のホース
口金具におけるニップルとしては、通常厚肉の鋼管を用
い、該鋼管の一端を前述のごとき薄肉鋼管の端部にロウ
づけするなどの方法が採用されている。For this reason, conventional methods have been adopted in which a thick-walled steel pipe is usually used as a nipple in a hose fitting for pressurized fluids, especially for high pressure, and one end of the steel pipe is brazed to the end of a thin-walled steel pipe as described above. has been done.
このように薄肉鋼管に対してニップル部を別体とすると
きは、製品自体がコスト高となり、さらにロウづけなど
を必要とするために作業が複雑となるなどの欠点がある
。When the nipple portion is made separate from the thin-walled steel pipe in this way, there are drawbacks such as the cost of the product itself being high and the work being complicated due to the need for brazing.
本発明は叙上の欠点を排除し、前述のごとき薄肉鋼管の
一端をそのまま圧力流体用ホース口金具のニップルとし
て使用すべく、完成されたものである。The present invention has been completed in order to eliminate the above-mentioned drawbacks and to use one end of the above-mentioned thin-walled steel pipe as it is as a nipple of a pressure fluid hose fitting.
しかして本発明は、圧力流体移送用の薄肉鋼管の一端近
辺に環状凸部または凹部を塑性加工により形成すると共
にソケット取付は部を形成し、該ソケット取付は部にソ
ケットの係合部を係合せしめ、ついでソケットと前記薄
肉鋼管の一端との間にホースの一端を嵌着させ、ついで
ソケットの中央近辺を半径方向内側にがしめっけること
を特徴とする薄肉鋼管とホースの連結方法を要旨とする
ものである。Therefore, the present invention forms an annular protrusion or a recess near one end of a thin-walled steel pipe for pressure fluid transfer by plastic working, and also forms a socket mounting part, and the socket mounting part engages the engaging part of the socket with the socket mounting part. Summary of a method for connecting a thin-walled steel pipe and a hose, which is characterized by fitting one end of the hose between the socket and one end of the thin-walled steel pipe, and then tightening the socket near the center radially inward. That is.
(実施例〕
以下、図面を用いて本発明の薄肉鋼管とホースの連結方
法を説明する。(Example) Hereinafter, a method for connecting a thin-walled steel pipe and a hose according to the present invention will be explained using the drawings.
第1〜2図はそれぞれ本発明にかかわる薄肉鋼管のニッ
プル部の一実施例を示す概略正面図、第3図は第1図に
示される薄肉鋼管を用いたホース口金具の一実施例を示
す概略縦断面図である。1 and 2 are schematic front views showing an embodiment of the nipple portion of the thin-walled steel pipe according to the present invention, and FIG. 3 shows an embodiment of the hose fitting using the thin-walled steel pipe shown in FIG. 1. It is a schematic longitudinal cross-sectional view.
本発明の連結方法は以下の手順で行なわれる。The connection method of the present invention is carried out in the following steps.
はじめに第1〜2図に示されるニップル部(1)、(1
1)を形成する。該ニップル部(1)、(11)はいず
れも一端が他の連結部材(図示されていない)に接続さ
れる前記二重巻き鋼管、−重巻き鋼管などの薄肉鋼管(
2)の他端に形成する。その際、ニップル部(1)、(
11)−どなる薄肉鋼管(2)の端部付近にソケット取
付は部(3)を形成し、同時に該取付は部(3)から端
部にかけて第1図に示されるような連続する環状凸部(
4)または第2図に示されるような連続する環状凹部(
5)を形成する。First, the nipple parts (1) and (1) shown in Figs.
1) Form. The nipple portions (1) and (11) each have one end connected to another connecting member (not shown), such as the double-wound steel pipe, - a thin-walled steel pipe such as a heavy-wound steel pipe (
2) Formed on the other end. At that time, the nipple part (1), (
11) - Near the end of the thin-walled steel pipe (2), the socket attachment forms a section (3), and at the same time the attachment forms a continuous annular protrusion from section (3) to the end as shown in Figure 1. (
4) or a continuous annular recess (
5) Form.
前記ソケット取付は部(3)はソケット(6)の取付は
部位に設けられる互いに平行な2つの環状凸部(7)、
(71)で構成されている。The socket mounting part (3) includes two mutually parallel annular convex parts (7) provided at the socket (6) mounting part;
(71).
つぎに第3図に示されるようにソケット(6)の端部を
これら2つの環状凸部(7)、(71)の間に嵌合して
薄肉鋼管(2)に取りつける。Next, as shown in FIG. 3, the end of the socket (6) is fitted between these two annular projections (7) and (71) and attached to the thin-walled steel pipe (2).
かかる環状凸部(力、(71)からなるソケット取付は
部(3)および前記環状の凸部(4)または凹部(5)
はプレス成形によって同時に形成することができる。Socket mounting consisting of such an annular protrusion (force, (71)) is the part (3) and the annular protrusion (4) or recess (5).
can be simultaneously formed by press molding.
ソケット取付は部(3)および環状の凸部(4)または
四部(5)を長く連続した薄肉鋼管(2)の一端に形成
することによりえられるニップル部(1)、(11)は
、第3図に示されるように前記ソケット取付は部(3)
に取りつけられたソケット(6)と共にホース口金具を
形成している。第3図は一例として環状の凸部(4)を
有するニップル部(1)を用いたばあいのホース口金具
を示している。The socket mounting is performed by forming a part (3) and an annular convex part (4) or a fourth part (5) at one end of a long continuous thin-walled steel pipe (2). As shown in Figure 3, the socket mounting section (3)
Together with the socket (6) attached to the hose, it forms a hose fitting. FIG. 3 shows, as an example, a hose fitting in which a nipple portion (1) having an annular convex portion (4) is used.
さらに第3図に示されるホース(8)をソケッ1−(6
)内に挿入し、ついでソケット(6)をその外周面より
かしめる〔第3図における締結部(9)〕。それにより
、ホース(8)はニップル部(1)とソケッ[〜(6)
とで固定され、ボース(8)と薄肉鋼管(2)とが直接
連結される。Furthermore, connect the hose (8) shown in Figure 3 to the socket 1-(6).
), and then caulk the socket (6) from its outer circumferential surface [fastening part (9) in Fig. 3]. Thereby, the hose (8) is connected to the nipple part (1) and the socket [~(6)].
The bow (8) and the thin-walled steel pipe (2) are directly connected to each other.
なお環状の凸部(4)を有するニップル部(1)に代え
て、環状の凹部(5)を有するニップル部(11)を用
いたばあいも同様にソケット(6)が取りつけられ、さ
らにホース(8)が固定される。Note that when a nipple part (11) having an annular concave part (5) is used instead of the nipple part (1) having an annular convex part (4), the socket (6) is attached in the same way, and the hose is (8) is fixed.
前記ホース(8)としては、たとえばナイロンブレード
層などの1層または2層からなる補強層(8a)の外面
にクロロプレン系ゴムなどの外面ゴム(8b)を、また
該補強層(8a)の内面にアクリロニトリル−ブタジェ
ンゴムなどの内面ゴム(8C)をそれぞれ設けてなるホ
ースが好適に使用されうる。The hose (8) includes, for example, a reinforcing layer (8a) consisting of one or two layers such as a nylon braid layer, an outer rubber (8b) such as chloroprene rubber on the outer surface, and an inner surface of the reinforcing layer (8a). A hose provided with an inner surface rubber (8C) such as acrylonitrile-butadiene rubber on the inside can be suitably used.
かかる本発明にかかわるニップル部(1)、(11)は
外周面上に環状の凸部(4)または凹部(5)が前記ソ
ケット取付は部(3)を形成する2つの凸部(7)、(
71)と共にプレス加工などの塑性加工によって形成さ
れるために、該プレス加工により薄肉鋼管自体の剛性が
増し、さらに凸部(4)や凹部(5)を有する形状によ
り、通常の薄肉鋼管く二重巻き鋼管や一重巻き鋼管)の
一端をそのままニップル部として用いるばあいに発生す
るホース締結時における薄肉鋼管のへたりがなくなり、
きわめて強固にホース(8)を固定保持しうると共に、
圧力流体のもれをほぼ完全に防止することができる。The nipple portions (1) and (11) according to the present invention have an annular convex portion (4) or a concave portion (5) on the outer circumferential surface, and two convex portions (7) forming the socket mounting portion (3). ,(
71), because it is formed by plastic working such as press working, the rigidity of the thin-walled steel pipe itself increases due to the press working, and the shape with the convex portions (4) and concave portions (5) makes it difficult to compare with ordinary thin-walled steel pipes. This eliminates the sagging of thin-walled steel pipes when connecting hoses, which occurs when one end of a heavy-wound steel pipe or single-wound steel pipe is used as a nipple part.
The hose (8) can be fixed and held extremely firmly, and
Leakage of pressure fluid can be almost completely prevented.
したがって本発明においては、通常のパワーステアリン
グ装置において曲り管などとして多く使用される薄く軽
量で安価な薄肉鋼管の端部がニップル部として使用でき
るために、従来のホース口金具のように薄肉鋼管の端部
に厚肉パイプの切削加工などにより製造したニップルを
ロウづけするなどの複雑な加工を必要とせず、ホース口
金具の製造におけるコストダウンをはかることができる
などの顕著な効果を秦しうる。Therefore, in the present invention, since the end of a thin, lightweight, and inexpensive thin-walled steel tube, which is often used as a bent pipe in ordinary power steering devices, can be used as a nipple, the end of the thin-walled steel tube can be used as a nipple. There is no need for complex processing such as brazing the nipple manufactured by cutting thick-walled pipes on the end, and it can have remarkable effects such as reducing costs in manufacturing hose fittings. .
本発明において用いられる薄肉鋼管(2)としては、た
とえば自弁国際′産業■より入手できる二重巻き鋼管(
肉厚0.711m、外径10mmφ)、自弁国際産業■
の一重巻き鋼管、商品名ハイコリンチューブ(肉厚0.
7mm、外径10mmφ)などが好□適に使用されるが
、さらにこれに類する他の薄肉鋼管を用いてもよい。か
がる薄肉鋼管(2)は肉厚が通常0.7〜1.2111
mの範囲で好適に使用される。As the thin-walled steel pipe (2) used in the present invention, for example, a double-wound steel pipe (
Wall thickness 0.711m, outer diameter 10mmφ), self-financed international industry■
Single-wound steel pipe, trade name: Hi-Corin Tube (wall thickness: 0.
7 mm, outer diameter 10 mmφ), etc., but other similar thin-walled steel pipes may also be used. The wall thickness of thin-walled steel pipes (2) is usually 0.7 to 1.2111.
It is preferably used within the range of m.
また本発明における前記環状の凸部(4)または凹部(
5)は薄肉鋼管(2)の外周面上に1〜7個形成するの
が好ましい。その際、凸部(4)は高さが0.2〜0.
8mn+程度であり、また凹部(5)は深さが0.1〜
0.8II1m程度であるのがホース(8)の固定保持
をより確実ならしめるうえで好ましい。Further, the annular convex portion (4) or the concave portion (
It is preferable to form 1 to 7 pieces of 5) on the outer peripheral surface of the thin-walled steel pipe (2). At that time, the height of the convex portion (4) is 0.2 to 0.
The depth of the recess (5) is 0.1 to 8 mm+.
It is preferable that the length is about 0.8II1 m in order to securely hold the hose (8).
かかる本発明の方法により締結されたホース口金具はパ
ワーステアリングホースの口金具用として圧力流体のプ
レッシャー側やリターン側に好適に採用されうるが、さ
らに他の圧力流体用ホースの口金具として常用で約0〜
100に!+ /Cl112の圧力に耐えうると共に、
130℃といった高温にも充分に耐えうる。一
つぎに実施例および比較例をあげて本発明の詳細な説明
する。The hose fitting fastened by the method of the present invention can be suitably employed as a fitting for a power steering hose on the pressure side or return side of pressure fluid, but it can also be used regularly as a fitting for other pressure fluid hoses. Approximately 0~
To 100! It can withstand the pressure of +/Cl112, and
It can withstand high temperatures such as 130°C. Next, the present invention will be explained in detail with reference to Examples and Comparative Examples.
実施例1
薄肉鋼管として肉厚0.7ff1m、内径10n+n+
φの二重巻き鋼管を用い、該鋼管に第1図に示されるよ
うなソケット取イ4け部(高さが0.5mmおよび1.
5mmで巾がいずれも0.5mmの互いに平行な2つの
凸部)および高さ0.5+nn+、巾2mmの3つの環
状凸部をプレス加工してニップル部を形成した。Example 1 Thin-walled steel pipe with wall thickness of 0.7ff1m and inner diameter of 10n+n+
A double-wound steel pipe with a diameter of φ is used, and the steel pipe is provided with four socket recesses (heights of 0.5 mm and 1.5 mm, respectively) as shown in FIG.
A nipple portion was formed by pressing two mutually parallel convex portions each having a width of 0.5 mm and a height of 0.5+nn+ and a width of 2 mm.
該ニップル部に冷間圧延鋼板(SPCG)からなるソケ
ット(外径24tunφ、肉厚1.2mm)を取り“つ
け、ホース口金具をえた。A socket (outer diameter 24 tunφ, wall thickness 1.2 mm) made of cold-rolled steel plate (SPCG) was attached to the nipple portion to obtain a hose fitting.
該口金具を、2層のナイロンブレード層(補強層)を有
し、内面ゴムにアクリロニ1−リルーブタジェンゴムを
、また外面ゴムにクロロブレン系ゴムを用いたホース(
内径101111!1φ、外径2゜■φ)の両端にそれ
ぞれ取りつけ、ソケットの外周面をかしめた。The fitting is made of a hose (having two nylon braid layers (reinforcing layers), an inner rubber made of acryloni-1-lylubutadiene rubber, and an outer rubber made of chloroprene rubber.
They were attached to both ends of the socket with an inner diameter of 101111!1φ and an outer diameter of 2゜■φ), and the outer peripheral surface of the socket was caulked.
ホースを取りつけ、ソケットをかしめたあと、ニップル
部のへたり程度を観察したが、ニップル部のへたりはま
ったく認められなかった。After attaching the hose and caulking the socket, I observed the degree of fatigue in the nipple, but no fatigue was observed in the nipple.
実施例2
二重巻き鋼管に形成される環状凸部に代えて環状凹部(
深さo、smm、幅2.5mm)を二重巻き鋼管に3つ
設けたほかは実施例1と同様にしてニップル部を形成し
た。Example 2 An annular recess (
A nipple portion was formed in the same manner as in Example 1, except that three nipples (depth o, smm, width 2.5 mm) were provided on a double-wound steel pipe.
該ニップル部のソケット取付は部に実施例1と同様にし
てソケットを取りつけてホース口金具を形成させ、つい
で該口金具にホースを取りつけ、ソケットをかしめた。To attach the socket to the nipple part, a socket was attached to the nipple part in the same manner as in Example 1 to form a hose fitting, a hose was then attached to the fitting, and the socket was caulked.
ソケットをかしめたあと、ニップル部のへたり程度を観
察したが、ニップル部のへたりはまったく認められなか
つlこ 。After caulking the socket, I observed the degree of fatigue in the nipple, but no fatigue was observed at all.
比較例に
二重巻き鋼管に環状凸部を設けずにソケット取付は部の
みを設けたほかは実施例1と同様にしてニップル部を形
成した。該ニップル部にソケットを取りつ番ノ、えられ
た口金具にホースを取りつけ、ソケットをかしめた。ソ
ケットをかしめたあと、ニップル部のへたり程度を観察
したところ、ニップル部の中央部が約0.7〜0.8m
m+の深さで内方に湾曲していた。In a comparative example, a nipple portion was formed in the same manner as in Example 1, except that a double-wound steel pipe was not provided with an annular convex portion and only a socket attachment portion was provided. A socket was attached to the nipple, a hose was attached to the resulting fitting, and the socket was caulked. After caulking the socket, I observed the degree of fatigue in the nipple part, and found that the center part of the nipple part was about 0.7 to 0.8 m.
It was curved inward at a depth of m+.
比較例2
実施例1で用いたのと同じ二重巻きI管の端部に、ニッ
プルとして切削加工した肉厚1,75ml11、外形1
0mmφでソケット取付は用の凹部を有し、外周に環状
の凸部が3つ設けられた肉厚鋼管を嵌挿し、互いにロウ
づけして接合したのち、ソケツ1〜を取りつけてホース
口金具をえた。該口金具をホースの両端にそれぞれ取り
つけ、各ソケットの外周面をかしめて、口金具にホース
をそれぞれ固定保持させた。ソケットをかしめたあと、
ニップルのへたりは認められなかった。Comparative Example 2 A nipple with a wall thickness of 1.75 ml and an outer diameter of 1 was cut into the end of the same double-wound I tube as used in Example 1.
The socket has a recess with a diameter of 0 mm, and a thick steel pipe with three annular protrusions on the outer periphery is inserted into the socket, and after brazing and joining each other, attach the socket 1~ and attach the hose fitting. I got it. The caps were attached to both ends of the hose, and the outer circumferential surface of each socket was caulked so that the hoses were fixedly held by the caps. After caulking the socket,
No nipple fatigue was observed.
これら実施例1〜2および比較例1〜2について、それ
ぞれ引張り試験、熱老化後のホース耐圧試験および加圧
繰返し試験を行なった。For these Examples 1 and 2 and Comparative Examples 1 and 2, a tensile test, a hose pressure resistance test after heat aging, and a pressure cyclic test were conducted, respectively.
各試験条件はつぎのとおりである。なお試験に用いた各
試料は、一方の口金具から他方の口金具までのホースの
長さを400mmとし、各3点ずつについて試験した。The test conditions are as follows. For each sample used in the test, the length of the hose from one cap to the other was 400 mm, and three points were tested for each sample.
(1)引張り試験
ホース両端の口金具をそれぞれ30111R1/分の速
さで引張り、ホースの抜けまたはホースのちぎれが生じ
たときの引張り力(kg)を測定した。(1) Tensile test The fittings at both ends of the hose were pulled at a speed of 30111 R1/min, and the tensile force (kg) was measured when the hose came off or broke.
(2)熱老化iのホース耐圧試験
試料を120±2℃の恒温槽に70時間入れ、さらに室
温下で3時間放置したのち、水圧による耐圧テストを行
ない、耐圧力(kg/ cm2 )を測定した。(2) Hose pressure test sample of heat aged i was placed in a constant temperature bath at 120±2℃ for 70 hours, and then left at room temperature for 3 hours, then a water pressure test was performed and the pressure resistance (kg/cm2) was measured. did.
(3)加圧繰返し試験[1)
104±3℃の恒温構内に試料を取りつ番す、油温13
5±′2℃、内圧100kg/c+++2で1サイクル
2秒の条件下にて加圧し、これを30サイクル/分の速
度で繰返し、試料の耐久性(サイクル数)を測定した(
SAE J 188に示された衝撃試験に準拠)。(3) Pressure repetition test [1] Samples are kept in a constant temperature chamber at 104±3℃, oil temperature 13
Pressure was applied under conditions of 5±'2°C and an internal pressure of 100 kg/c++2 for 2 seconds per cycle, and this was repeated at a rate of 30 cycles/min to measure the durability (number of cycles) of the sample (
(according to the impact test set forth in SAE J 188).
(4)加圧繰返し試験(1)
120±2℃の恒温槽に試料を取りつけ、油温104±
3℃、内圧120g/cm2で1サイクル1秒の条件下
にて加圧し、これを60サイクル/分の速度で繰返し、
試料の耐久性(サイクル数)を測定した。(4) Pressure repetition test (1) Attach the sample to a constant temperature bath at 120±2℃, and set the oil temperature to 104±2℃.
Pressure was applied at 3°C and an internal pressure of 120 g/cm2 for 1 second per cycle, and this was repeated at a rate of 60 cycles/min.
The durability (number of cycles) of the sample was measured.
これらの各試験結果を次表に示す。The results of each of these tests are shown in the table below.
[以下余白]
これらの試験結果から、本発明は、通常の薄肉鋼管の一
端をそのままニップル部として用いた連結方法(比較例
1)に比してホースの固着性や洩れの防止にきわめて有
効であり、従来の厚肉ニップルをロウづけした方法(比
較例2)、と性能がほとlυど変らないことがわかる。[Blank below] From these test results, the present invention is extremely effective in preventing hose fixation and leakage compared to the connection method (Comparative Example 1) in which one end of a normal thin-walled steel pipe is used as a nipple part. It can be seen that the performance is almost the same as the conventional method of brazing thick-walled nipples (Comparative Example 2).
第1〜2図はそれぞれ本発明にかかわる薄肉鋼管のニッ
プル部の一実施例を示す概略正面図、第3図は第1図に
示される薄肉鋼管を用いたホース口金具の一実施例を示
す概略縦断面図である。
(図面の主要符号)
(1)、(11) :ニツプル部
(2):薄肉鋼管
(3):ソケット取付は部
(4)、(7)、(71) :凸部
(5):凹部
(6):ソケット
(8)二ホース
特許出願人 日輪ゴム工業株式会社1 and 2 are schematic front views showing an embodiment of the nipple portion of the thin-walled steel pipe according to the present invention, and FIG. 3 shows an embodiment of the hose fitting using the thin-walled steel pipe shown in FIG. 1. It is a schematic longitudinal cross-sectional view. (Main symbols in the drawing) (1), (11): Nipple part (2): Thin wall steel pipe (3): Socket mounting part (4), (7), (71): Convex part (5): Concave part ( 6): Socket (8) Two hoses Patent applicant Nichiwa Rubber Industries Co., Ltd.
Claims (1)
たは凹部を塑性加工により形成すると共にソケット取付
は部を形成し、該ソケット取付は部にソケットの係合部
を係合せしめ、ついでソケットと前記薄肉鋼管の一端と
の間にホースの一端を嵌着させ、ついでソケットの中央
近辺を半径方向内側にかしめつけることを特徴とする薄
肉鋼管とホースの連結方法。1. An annular convex portion or a concave portion is formed near one end of a thin-walled steel pipe for pressure fluid transfer by plastic working, and a socket mounting portion is formed, and an engaging portion of the socket is engaged with the socket mounting portion, and then the socket is attached. A method for connecting a thin-walled steel pipe and a hose, characterized in that one end of the hose is fitted between the socket and one end of the thin-walled steel pipe, and then the vicinity of the center of the socket is caulked inward in the radial direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59169525A JPS6078192A (en) | 1984-08-13 | 1984-08-13 | Method of connecting thin steel pipe and hose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59169525A JPS6078192A (en) | 1984-08-13 | 1984-08-13 | Method of connecting thin steel pipe and hose |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6078192A true JPS6078192A (en) | 1985-05-02 |
Family
ID=15888115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59169525A Pending JPS6078192A (en) | 1984-08-13 | 1984-08-13 | Method of connecting thin steel pipe and hose |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6078192A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4421732Y1 (en) * | 1965-06-23 | 1969-09-13 | ||
US3549180A (en) * | 1968-05-16 | 1970-12-22 | Scovill Manufacturing Co | Hose and hose coupling assembly |
-
1984
- 1984-08-13 JP JP59169525A patent/JPS6078192A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4421732Y1 (en) * | 1965-06-23 | 1969-09-13 | ||
US3549180A (en) * | 1968-05-16 | 1970-12-22 | Scovill Manufacturing Co | Hose and hose coupling assembly |
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