JP2531499Y2 - Joint structure of tubular body - Google Patents
Joint structure of tubular bodyInfo
- Publication number
- JP2531499Y2 JP2531499Y2 JP3910891U JP3910891U JP2531499Y2 JP 2531499 Y2 JP2531499 Y2 JP 2531499Y2 JP 3910891 U JP3910891 U JP 3910891U JP 3910891 U JP3910891 U JP 3910891U JP 2531499 Y2 JP2531499 Y2 JP 2531499Y2
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- view
- inner tube
- joint structure
- jack
- 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 - Lifetime
Links
Landscapes
- Joints With Sleeves (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、互いに嵌め合い構造の
管状体同士の接合構造の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a joint structure between tubular bodies having a fitting structure.
【０００２】[0002]
【従来の技術】従来のこの種の管状体の接合方法として
は、図４に示したように、一方の管状体(外管)11の内面
に環状の凹部13を設け、他方の管状体(内管)12の外面に
複数の凸部14を円周等分に設け、凹部13に凸部14を嵌め
て接合していた。なお、符号15はフランジ部、符号16は
シールリングであり、また、図４(b)は(a)の内管12をＡ
方向から見た図である。この場合の接合のし易さと外れ
難さ(要する力)は、両管状体の凹部13と凸部14のオーバ
ーラップ量に比例している。すなわち、オーバーラップ
量が大きくなるほど外れ難くなるが、反対に入れ難くな
る問題があった。これは管状体同士が同一軸線を移動し
て接合、又は外れるからである。2. Description of the Related Art As a conventional joining method of such a tubular body, as shown in FIG. 4, an annular concave portion 13 is provided on the inner surface of one tubular body (outer tube) 11, and the other tubular body (outer tube) is provided. A plurality of protrusions 14 were provided on the outer surface of the inner tube 12 at equal circumferential intervals, and the protrusions 14 were fitted into the recesses 13 and joined. Reference numeral 15 denotes a flange portion, reference numeral 16 denotes a seal ring, and FIG. 4B shows the inner pipe 12 of FIG.
It is the figure seen from the direction. In this case, the ease of joining and the difficulty of disengagement (required force) are proportional to the amount of overlap between the concave portion 13 and the convex portion 14 of both tubular bodies. That is, there is a problem that the larger the amount of overlap is, the more difficult it is to separate, but conversely, it is difficult to insert. This is because the tubular bodies move along the same axis and are joined or separated.
【０００３】[0003]
【考案が解決しようとする課題】本考案は、取り付けに
要する力は従来と変わらず、かつ、同一軸線方向に力が
作用しても外れ難くして実用上問題なく、しかも、取り
外しが容易な構造につき、検討を加えた。According to the present invention, the force required for mounting is the same as the conventional one, and it is hard to be disengaged even when a force is applied in the same axial direction. The structure was examined.
【０００４】[0004]
【課題を解決するための手段】上記課題を本考案では、
互いに嵌め合い構造の外管１の内面に環状の凹部３を設
け、内管２の外面に２個所の凸部４,４を円周不等分な
位置に設け、前記凹部３に前記凸部４を嵌合した構造と
して解決した。ここにいう外管、内管とは、接合部にお
いて大径と小径の関係であることをいい、その他の部分
では同一径や大小逆の径であっても構わない。Means for Solving the Problems The present invention solves the above problems by:
An annular concave portion 3 is provided on the inner surface of the outer tube 1 having a fitting structure, and two convex portions 4, 4 are provided on the outer surface of the inner tube 2 at unequal circumferential positions. 4 was solved as a fitted structure. The outer tube and the inner tube referred to herein have a relationship of a large diameter and a small diameter at the joint portion, and may have the same diameter or a diameter opposite to that of the large diameter at other portions.
【０００５】[0005]
【作用】このような構造であると、挿入、又は抜き方向
の外力がかかった場合、特に、管内を流れる流体の力に
よって抜き方向の外力がかかる場合、凸部４のない、す
なわち抵抗のない部分が先に動く。そのために管状体が
相対的に傾いて、挿入時にはオーバーラップが小さくな
り、抜ける時には反対に大きくなる。With such a structure, when an external force is applied in the insertion or withdrawal direction, particularly when the external force is applied in the withdrawal direction due to the force of the fluid flowing through the pipe, there is no protrusion 4, that is, no resistance. The part moves first. As a result, the tubular body is relatively inclined, and the overlap becomes smaller when inserted and becomes larger when it comes off.
【０００６】[0006]
【実施例】図１(a)〜(c)は第１実施例の断面図であり、
図２は図１(a)中の内管をＡ方向から見た図である。図
３は実施態様を示す一部破断側面図である。この例は、
給油口管６の下方へ給油管本体７を接続している。給油
管本体７の上端が互いに嵌め合い構造の外管１となって
おり、その内面に環状の凹部３を設けている。給油口管
６の下端部を絞って形成された内管２の外面に２個所の
凸部４,４を円周不等分な位置に形成している。符号５
は全周突条の位置決めフランジである。図１(a)は外管
１の環状の凹部３に内管２の凸部４が嵌合している様子
たを示した。この状態で管内を流れる流体の力によって
抜き方向の外力Ｆがかかった場合、(b)に示したよう
に、凸部４のない、すなわち抵抗のない部分Ｐが先に動
くので、管状体(内管２)が相対的に傾いて、凸部４のあ
る部分Ｑは強固に係止したままである。挿入時にもオー
バーラップが小さくなり簡単に挿入できる。接合部を外
す場合には、(c)のように外管の端部が内管凸部４のな
い部分Ｐで密着状態になるように管状体(内管２)を相対
的に傾ければ、外管１の環状の凹部３から内管２の凸部
４が容易に外れるのである。1A to 1C are sectional views of a first embodiment.
FIG. 2 is a view of the inner tube in FIG. FIG. 3 is a partially broken side view showing the embodiment. This example
An oil supply pipe main body 7 is connected below the oil supply port pipe 6. The upper end of the oil supply pipe main body 7 forms an outer pipe 1 having a fitting structure, and an annular recess 3 is provided on the inner surface thereof. On the outer surface of the inner tube 2 formed by squeezing the lower end of the filler tube 6, two convex portions 4, 4 are formed at unequal circumferential positions. Code 5
Is a positioning flange of the entire ridge. FIG. 1A shows a state in which the convex portion 4 of the inner tube 2 is fitted into the annular concave portion 3 of the outer tube 1. In this state, when an external force F in the pulling direction is applied by the force of the fluid flowing in the pipe, as shown in (b), the portion P without the convex portion 4, that is, the portion P without resistance moves first, so that the tubular body ( The inner tube 2) is relatively inclined, and the portion Q with the projection 4 remains firmly locked. At the time of insertion, the overlap is small and insertion is easy. When the joint is removed, the tubular body (inner tube 2) is relatively inclined so that the end of the outer tube is in close contact with the portion P without the inner tube protrusion 4 as shown in FIG. The projection 4 of the inner tube 2 easily comes off the annular recess 3 of the outer tube 1.
【０００７】図５,６は本考案の第２実施例を示してい
る。ジャッキの操作棒８をコンパクトに収納する必要性
から２分割した例であって、図５(a)はジャッキの操作
棒の一部破断側面図であり、図５(b)は図５(a)中のB-B
拡大断面図、図６はこの操作棒をパンタグラフ式ジャッ
キに使用している様子を示す側面図である。この例で
は、ジャッキのハンドル９ヘ連結する尖端部を有する基
部側操作棒8aと、先端がパンタグラフ式ジャッキ10へ係
合する鉤状の先側操作棒8bが同一径のパイプである。接
続部8cでは先側操作棒8bが拡径されている。その拡径部
の内面に環状の凹部３を設けている。一方、基部側操作
棒8aには外面に２個所の凸部４,４を円周上で不等分な
位置に設けている。この場合には第１実施例のようなシ
ーリングは不要である。使用時は一体にして回り止めピ
ンを用いて固定し、使用後接合部を外すが、この例にお
いても、挿入時にはオーバーラップが小さくなり簡単に
挿入できるし、接合する時のように傾ければ容易に外れ
る。FIGS. 5 and 6 show a second embodiment of the present invention. FIG. 5 (a) is a partially cutaway side view of the jack operating rod, and FIG. 5 (b) is a partially cutaway side view of the jack operating rod 8 in which the jack 8 is required to be compactly stored. BB inside
FIG. 6 is an enlarged cross-sectional view, and FIG. 6 is a side view showing a state in which this operation rod is used for a pantograph jack. In this example, a base-side operation rod 8a having a pointed end connected to the jack handle 9 and a hook-shaped front-side operation rod 8b whose tip engages with the pantograph-type jack 10 are pipes having the same diameter. In the connecting portion 8c, the front operation rod 8b is expanded in diameter. An annular concave portion 3 is provided on the inner surface of the enlarged diameter portion. On the other hand, the base side operation rod 8a is provided with two projections 4, 4 on its outer surface at unequal positions on the circumference. In this case, the sealing as in the first embodiment is unnecessary. At the time of use, it is integrated and fixed using a detent pin, and after use, the joint is removed. Removes easily.
【０００８】[0008]
【考案の効果】本考案の管状体の接合構造は以上のよう
に、同一軸線方向に力が作用しても外れ難く、しかも、
取り外しが容易で実用的である。外力によってパイプが
傾くということは、接合部に柔軟性があるということな
ので、実施例に示した以外の変位が生ずる２体間の接合
にも適する。[Effect of the Invention] As described above, the joint structure of the tubular body of the present invention is hardly disengaged even when a force acts in the same axial direction.
Easy to remove and practical. The fact that the pipe is tilted by an external force means that the joint is flexible, and thus is also suitable for joining between two bodies in which a displacement other than that shown in the embodiment occurs.
【図１】(a)〜(c)は第１実施例の断面図である。FIGS. 1A to 1C are cross-sectional views of a first embodiment.
【図２】図１(a)中の内管をＡ方向から見た図である。FIG. 2 is a view of the inner tube in FIG.
【図３】実施態様を示す一部破断側面図である。FIG. 3 is a partially cutaway side view showing the embodiment.
【図４】(a)は従来例の断面図であり、(b)は(a)中の内
管をＡ方向から見た図である。4A is a cross-sectional view of a conventional example, and FIG. 4B is a view of the inner tube in FIG.
【図５】(a)はジャッキの操作棒の一部破断側面図であ
り、(b)は(a)中のB-B拡大断面図である。FIG. 5 (a) is a partially cutaway side view of a jack operating rod, and FIG. 5 (b) is an enlarged sectional view of BB in FIG. 5 (a).
【図６】操作棒をパンタグラフ式ジャッキに使用してい
る様子を示す側面図である。FIG. 6 is a side view showing a state in which the operating rod is used for a pantograph jack.
１ 外管 ２ 内管 ３ 凹部 ４ 凸部 ５ 位置決めフランジ ６ 給油口管 ７ 給油管本体 ８ ジャッキの操作棒 ９ ジャッキのハンドル 10 パンタグラフ式ジャッキ DESCRIPTION OF SYMBOLS 1 Outer pipe 2 Inner pipe 3 Concave part 4 Convex part 5 Positioning flange 6 Oil filler pipe 7 Oil filler pipe main body 8 Jack operating rod 9 Jack handle 10 Pantograph jack
Claims (1)
の凹部を設け、内管の外面に２個所の凸部を円周不等分
な位置に設け、前記凹部に前記凸部を嵌合してなる管状
体の接合構造。An annular concave portion is provided on the inner surface of an outer tube having a fitting structure, and two convex portions are provided on the outer surface of the inner tube at circumferentially unequal positions, and the convex portion is fitted into the concave portion. Joint structure of tubular bodies that are combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3910891U JP2531499Y2 (en) | 1991-04-26 | 1991-04-26 | Joint structure of tubular body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3910891U JP2531499Y2 (en) | 1991-04-26 | 1991-04-26 | Joint structure of tubular body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04124311U JPH04124311U (en) | 1992-11-12 |
| JP2531499Y2 true JP2531499Y2 (en) | 1997-04-02 |
Family
ID=31920481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3910891U Expired - Lifetime JP2531499Y2 (en) | 1991-04-26 | 1991-04-26 | Joint structure of tubular body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531499Y2 (en) |
-
1991
- 1991-04-26 JP JP3910891U patent/JP2531499Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04124311U (en) | 1992-11-12 |
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