JP3208398B2 - Pipe connector - Google Patents

Pipe connector

Info

Publication number
JP3208398B2
JP3208398B2 JP28131393A JP28131393A JP3208398B2 JP 3208398 B2 JP3208398 B2 JP 3208398B2 JP 28131393 A JP28131393 A JP 28131393A JP 28131393 A JP28131393 A JP 28131393A JP 3208398 B2 JP3208398 B2 JP 3208398B2
Authority
JP
Japan
Prior art keywords
stopper
pipe
elastic legs
arc
main body
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 - Fee Related
Application number
JP28131393A
Other languages
Japanese (ja)
Other versions
JPH06207696A (en
Inventor
晃一 井上
伸之 奥田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Showa Denko KK
Original Assignee
Honda Motor Co Ltd
Showa Denko KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd, Showa Denko KK filed Critical Honda Motor Co Ltd
Priority to JP28131393A priority Critical patent/JP3208398B2/en
Publication of JPH06207696A publication Critical patent/JPH06207696A/en
Application granted granted Critical
Publication of JP3208398B2 publication Critical patent/JP3208398B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/0841—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a transversally slidable locking member surrounding the tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
    • F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
    • F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】この発明は、カーエアコン等にお
ける配管ジョイントとして用いられるワンタッチ式のパ
イプ連結具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-touch type pipe connector used as a pipe joint in a car air conditioner or the like.

【０００２】[0002]

【従来の技術】例えば、カーエアコンにおいては、冷媒
サイクルを形成するために、ねじ継手等により凝縮器等
の機器とキャピラリチューブ等のパイプを連結し、ある
いはパイプどうしを相互に連結することが従来行われて
いた。2. Description of the Related Art For example, in a car air conditioner, in order to form a refrigerant cycle, devices such as a condenser and pipes such as a capillary tube or a pipe are connected to each other by a screw joint or the like. It was done.

【０００３】しかしながら、連結具としてねじ継手を用
いた場合、パイプ等の連結作業が面倒であった。[0003] However, when a threaded joint is used as a connecting tool, the connecting operation of pipes and the like is troublesome.

【０００４】そこで、簡単な操作で確実なパイプの連結
接続を行い得る連結具として、本出願人は、図１８〜図
２０に示すようなワンタッチ式のものを提案した（特願
平４−２５４９９０号）。即ち、同図において、（１）
はアルミニウム（その合金を含む）からなる連結具本
体、（２）はストッパ、（３）はアルミニウム製等のパ
イプである。連結具本体（１）は、断面円形の短筒体か
らなり、長さ方向の少なくとも一端部外周に、桟部（1
2）を残して周方向に穿たれた２個の孔部（11）（11）
を対向配置に有している。Accordingly, the present applicant has proposed a one-touch type connecting tool as shown in FIGS. 18 to 20 as a connecting tool capable of surely connecting pipes by a simple operation (Japanese Patent Application No. 4-254990). issue). That is, in FIG.
Is a connector body made of aluminum (including its alloy), (2) is a stopper, and (3) is a pipe made of aluminum or the like. The connecting member main body (1) is formed of a short cylindrical body having a circular cross section, and has a bar (1) on at least one outer periphery in the length direction.
Two holes (11) (11) drilled in the circumferential direction leaving 2)
In the opposed arrangement.

【０００５】一方、ストッパ（２）は，コ字状の頭部
（21）と該頭部の両側先端から円弧状に延びた１対の円
弧状弾性脚体（22）（22）とにより、馬蹄形に形成され
てなる。このストッパ（２）は樹脂の一体成形品からな
り、前記円弧状弾性脚体（22）（22）はその弾性力によ
り相互に開離復帰可能となされている。また、前記円弧
状弾性脚体（22）（22）は、連結具本体（１）の両孔部
（11）（11）にそれぞれ外側から嵌め込まれるものであ
り、連結具本体（１）の外周とほぼ同じ曲率に形成され
るとともに、該脚体の内周部には嵌め込み状態において
連結具本体（１）の内部に突出する突出部（23）（23）
が形成されている。かつこの突出部（23）（23）の厚さ
方向の片面は、中心に向かって肉薄となるすり鉢状のテ
ーパ部（23a ）（23a ）となされる一方、裏面は平坦面
となされている。On the other hand, the stopper (2) is formed by a U-shaped head (21) and a pair of arc-shaped elastic legs (22) (22) extending in an arc from both ends of the head. It is formed in a horseshoe shape. The stopper (2) is made of an integrally molded product of resin, and the arc-shaped elastic legs (22) (22) can be separated from each other and returned by their elastic force. The arcuate elastic legs (22) and (22) are fitted into the two holes (11) and (11) of the connector main body (1) from the outside, respectively, and the outer periphery of the connector main body (1) is provided. Projecting portions (23) (23) projecting into the inside of the connector body (1) in a fitted state on the inner peripheral portion of the leg body while being formed with substantially the same curvature as that of the leg body.
Are formed. In addition, one surface in the thickness direction of the protruding portions (23) (23) is formed as a mortar-shaped tapered portion (23a) (23a) which becomes thinner toward the center, while the back surface is a flat surface.

【０００６】前記パイプ（３）は、挿入側の端部外周
に、ビーディング加工により形成された環状突部（31）
を有するとともに、環状突部（31）よりも先端の外周面
に溝部が形成され、この溝部に嵌め込まれたＯリング
（32）を有している。The pipe (3) has an annular projection (31) formed by beading on the outer periphery of the end on the insertion side.
And an O-ring (32) fitted in the groove formed on the outer peripheral surface at the tip of the annular projection (31).

【０００７】而して、図１２〜図１４に示すパイプ連結
具では、連結具本体（１）の他端側に予め別のアルミニ
ウムパイプ（５）が挿入され、拡管加工されるととも
に、このアルミニウムパイプ（５）の先端に連結具本体
（１）内周の段部に係止される鍔部（51）を設けてかし
めることにより、このアルミニウムパイプ（５）が連結
具本体（１）内に予め密着状態で連結接続されてなる。
そして、ストッパ（２）をそのテーパ部（23a ）（23a
）がパイプ挿入側となる向きにして連結具本体（１）
の径方向外方から、連結具本体の桟部（12）を跨いで押
し込み、左右の円弧状弾性脚体（22）（22）を連結具本
体（１）の各孔部（11）（11）へ嵌め込む。この際、対
向する円弧状弾性脚体（22）（22）は、ストッパ（２）
の押し込みに応じて連結具本体（１）の外周形状に沿っ
て左右に開離したのち、軽快な嵌め込み音を伴って即座
に連結具本体（１）へ嵌め込まれる。また、ストッパ
（２）のコ字状頭部（21）が連結具本体（１）の桟部
（12）を挟み込み、かつストッパ（２）の突出部（23）
（23）の頭部側内端面（23b ）（23b ）が桟部（12）に
係合してストッパ（２）の脱落を阻止する。In the pipe connector shown in FIGS. 12 to 14, another aluminum pipe (5) is inserted into the other end of the connector body (1) in advance, expanded, and this aluminum pipe is expanded. By providing a flange (51) at the tip of the pipe (5) to be locked to a step on the inner periphery of the coupler body (1), the aluminum pipe (5) is placed inside the coupler body (1). Are connected and connected in advance in close contact with each other.
Then, the stopper (2) is moved to its tapered portion (23a) (23a
) Is the pipe insertion side so that the connector body (1)
From the outside in the radial direction, straddle the crosspiece (12) of the connecting member main body, and push the left and right arc-shaped elastic legs (22), (22) into the respective holes (11), (11) of the connecting member main body (1). ). At this time, the opposing arcuate elastic legs (22) and (22) are
After the left and right sides are separated from each other along the outer peripheral shape of the connecting member main body (1) in response to the pushing, the fitting is immediately fitted into the connecting member body (1) with a light fitting sound. The U-shaped head (21) of the stopper (2) sandwiches the crosspiece (12) of the connector body (1), and the protrusion (23) of the stopper (2).
The head-side inner end surfaces (23b) and (23b) of (23) are engaged with the crosspiece (12) to prevent the stopper (2) from falling off.

【０００８】次に、パイプ（３）を連結具本体（１）に
挿入すると、パイプ先端はストッパ（２）のテーパ部
（23a ）（23a ）に案内され、２個の円弧状弾性脚体
（22）（22）の弾力的な開離を伴いつつ円弧状弾性脚体
（22）（22）の間にスムーズに進入する。さらにパイプ
（３）の環状突部（31）が円弧状弾性脚体（22）（22）
を通過するまでパイプ（３）を押し入れる。円弧状弾性
脚体（22）（22）はその弾力に抗してさらに開離し環状
突部（31）を通過せしめた後接近方向に復帰する。この
状態では、パイプ（３）の環状突部（31）はアルミニウ
ムパイプ（５）の鍔部（51）とストッパ（２）の円弧状
弾性脚体（22）（22）との間に嵌まり込んで係止され、
Ｏリング（32）が連結具本体（１）の内周面に気密状態
に圧接する。さらに、パイプ（３）の抜け方向の外力に
対して、対向する円弧状弾性脚体（22）（22）の突出部
（23）（23）が連結具本体（１）と広い接触面積で当接
してパイプ（３）の連結状態を確実に維持する。Next, when the pipe (3) is inserted into the connector body (1), the tip of the pipe is guided by the tapered portions (23a) and (23a) of the stopper (2), and the two arc-shaped elastic legs ( 22) It smoothly enters between the arcuate elastic legs (22) and (22) with the elastic separation of (22). Further, the annular projection (31) of the pipe (3) is formed of an arcuate elastic leg (22) (22).
Push in pipe (3) until it passes. The arcuate elastic legs (22), (22) are further separated against the elasticity, return to the approaching direction after passing through the annular protrusion (31). In this state, the annular projection (31) of the pipe (3) fits between the flange (51) of the aluminum pipe (5) and the arcuate elastic legs (22) (22) of the stopper (2). And locked
The O-ring (32) is pressed against the inner peripheral surface of the connector body (1) in an airtight state. Furthermore, the protruding portions (23) (23) of the arcuate elastic legs (22) (22) facing the external force in the pull-out direction of the pipe (3) come into contact with the connector body (1) in a wide contact area. The pipe (3) is maintained in a connected state without fail.

【０００９】このように、図１８〜図２０に示すパイプ
連結具によれば、パイプの連結を簡単かつ確実に行うこ
とができ、連結後における抜け方向の外力に対しても、
これを阻止し得る優れた接続強度を得ることができる。As described above, according to the pipe connecting tool shown in FIGS. 18 to 20, the pipes can be connected easily and reliably, and even when the external force in the pull-out direction after the connection is established,
An excellent connection strength that can prevent this can be obtained.

【００１０】[0010]

【発明が解決しようとする課題】ところで、上記のパイ
プ連結具において、パイプ（３）の先端を１対の円弧状
弾性脚体（22）（22）間にスムーズに案内して連結を可
能とするためには、ストッパ（２）をそのテーパ部（23
a ）（23a ）がパイプ挿入側を向く配置にして連結具本
体（１）に組み付ける必要があるが、実際のストッパ組
み付け作業においては、ストッパ（２）の表裏を逆にし
て組み付けることが往々にしてある。By the way, in the above-mentioned pipe connector, the tip of the pipe (3) can be smoothly guided between the pair of arcuate elastic legs (22) and (22) to enable connection. To achieve this, the stopper (2) must be
a) It is necessary to assemble the connector body (1) with the (23a) facing the pipe insertion side. However, in actual stopper assembling work, it is often the case that the stopper (2) is installed upside down. It is.

【００１１】しかしながら、上記提案に係るパイプ連結
具では、ストッパ（２）を逆入れしても円弧状弾性脚体
（22）（22）と連結具本体（１）の孔部（11）（11）と
が適性に嵌合されてしまうため、ストッパ（２）の組み
付け段階で逆入れに気付かず、そのままパイプ連結作業
を行ってしまうという欠点があった。殊に、予めストッ
パ（２）を組み付けた連結具本体（１）に、現場等で爾
後的にパイプ（３）を連結する場合、パイプ（３）を挿
入したときの挿入不能から初めてストッパ（２）の逆入
れに気付くことも多く、作業性を悪化させる一因となっ
ており、改善が望まれていた。However, in the pipe connector according to the above proposal, the arc-shaped elastic legs (22) and (22) and the holes (11) and (11) of the connector body (1) even if the stopper (2) is inserted upside down. ) Is properly fitted, so that there is a drawback that the pipe connection operation is performed as it is without noticing the reverse insertion at the stage of assembling the stopper (2). In particular, when the pipe (3) is subsequently connected to the connector body (1) to which the stopper (2) has been previously assembled at the site or the like, the stopper (2) is first inserted after the pipe (3) cannot be inserted. ) Is often noticed, which is one of the causes of deterioration of workability, and improvement has been desired.

【００１２】この発明は、かかる技術的背景に鑑みてな
されたものであって、ストッパの逆入れを防止したパイ
プ連結具の提供を目的とするものである。The present invention has been made in view of the above technical background, and an object of the present invention is to provide a pipe connector that prevents a stopper from being inserted backwards.

【００１３】上記目的を達成するために、この発明は、
逆入れ防止のためにストッパをその厚さ方向または２個
の円弧状弾性脚体の対向方向において非対称形状とした
ものである。[0013] To achieve the above object, the present invention provides:
In order to prevent reverse insertion, the stopper has an asymmetric shape in its thickness direction or in the direction opposite to the two arc-shaped elastic legs.

【００１４】即ち、この発明は、図面の符号を参照して
示すと、長さ方向の少なくとも一端部外周面に、対向す
る２個の孔部（11）（11）を有する筒状の連結具本体
（１）と、該連結具本体（１）の前記孔部（11）（11）
に外側から内方突出状態に嵌合される２個の円弧状弾性
脚体（22）（22）を対向配置に有するとともに、該円弧
状弾性脚体（22）（22）の厚さ方向の片面にはパイプ案
内用のすり鉢状テーパ部（23a ）（23a ）が形成された
ストッパ（２）とを具備し、前記テーパ部（23a ）（23
a ）がパイプ挿入側を向く配置で円弧状弾性脚体（22）
（22）と前記孔部（11）（11）とを嵌合させることによ
り、前記ストッパ（２）が連結具本体（１）に組み付け
られた状態で、端部外周に環状突部（31）を有するパイ
プ（３）を、連結具本体（１）の端部からその環状突部
（31）が前記円弧状弾性脚体（22）（22）を通過するま
で押し入れて、パイプ（３）を抜け止め状態に連結する
ものとなされたパイプ連結具であって、前記ストッパ
（２）が、厚さ方向あるいは前記円弧状弾性脚体（22）
（22）の対向方向において非対称形状となされることに
より、テーパ部（23a ）（23a ）がパイプ挿入側と反対
側を向く配置でストッパ（２）が連結具本体（１）に組
み付けられるときの円弧状弾性脚体（22）（22）と孔部
（11）（11）との嵌合を阻止するものとなされているこ
とを特徴とするパイプ連結具を要旨とする。That is, according to the present invention, referring to the reference numerals in the drawings, a cylindrical coupling tool having two opposing holes (11) (11) on at least one outer peripheral surface in a longitudinal direction. A main body (1) and the holes (11) and (11) of the connecting member main body (1);
And two arcuate elastic legs (22) and (22) which are fitted in an inwardly protruding state from the outside at opposite positions, and have a thickness direction of the arcuate elastic legs (22) and (22). One side is provided with a stopper (2) formed with a mortar-shaped tapered portion (23a) (23a) for guiding a pipe, and the tapered portion (23a) (23
a) The arc-shaped elastic legs (22) facing the pipe insertion side
(22) and the holes (11) and (11) are fitted to each other, so that the stopper (2) is assembled to the connecting member body (1), and an annular protrusion (31) is formed on the outer periphery of the end. Is inserted from the end of the connector body (1) until the annular projection (31) passes through the arc-shaped elastic legs (22) (22), and the pipe (3) is inserted. A pipe connector adapted to be connected in a retaining state, wherein said stopper (2) is in a thickness direction or said arcuate elastic leg (22).
When the stopper (2) is assembled to the connecting member body (1) with the taper portions (23a) and (23a) facing away from the pipe insertion side, the stopper (2) is formed in an asymmetric shape in the facing direction of (22). The gist of the present invention is a pipe connector characterized in that the arc-shaped elastic legs (22) (22) and the holes (11) (11) are prevented from fitting.

【００１５】[0015]

【作用】ストッパ（２）を表裏逆向きで組み付けようと
した場合には、円弧状弾性脚体（22）（22）と孔部（1
1）（11）との嵌合が阻止され、適正組み付けが妨げら
れる結果、その逆入れに容易に気付くことができ、直ち
にストッパを裏返して適正状態にストッパ（２）を組み
付けることができる。[Function] If the stopper (2) is to be assembled upside down, the arc-shaped elastic legs (22) and (22) and the hole (1)
1) The fitting with (11) is prevented, and the proper assembling is prevented. As a result, the reverse insertion can be easily noticed, and the stopper can be immediately turned over and the stopper (2) can be assembled in an appropriate state.

【００１６】[0016]

【実施例】次にこの発明の実施例を示す。なお、以下の
実施例において、図１８〜図２０に示したものと同一の
名称部分については同一の符号を付し、その説明を省略
する。また、図１〜図１４に示す実施例のパイプ連結構
造は、図１８〜図２０に示したものと同じであるのでそ
の説明も省略する。Next, an embodiment of the present invention will be described. In the following embodiments, the same names as those shown in FIGS. 18 to 20 are denoted by the same reference numerals, and description thereof will be omitted. The pipe connection structure of the embodiment shown in FIGS. 1 to 14 is the same as that shown in FIGS.

【００１７】図１及び図２はこの発明の第１実施例を示
すものであり、この第１実施例は、ストッパ（２）を円
弧状弾性脚体（22）（22）の対向方向において非対称形
状に構成したものである。FIGS. 1 and 2 show a first embodiment of the present invention. In the first embodiment, the stopper (2) is asymmetric in the direction in which the arc-shaped elastic legs (22) and (22) are opposed to each other. It is configured in a shape.

【００１８】即ち、ストッパ（２）は頭部（21）の中央
を境に円弧状弾性脚体（22）（22）を含む左右半分が厚
さ（t1）（t2）の異なるものとなされている。また、こ
れに対応して、連結具本体（１）の１対の孔部（11）
（11）も一方が厚肉の円弧状弾性脚体（22a ）に適合す
る幅広孔部（11a ）に、他方が薄肉の円弧状弾性脚体
（22b ）に適合する幅狭孔部（11b ）に形成されてい
る。そして、ストッパ（２）がそのテーパ部（23a ）を
パイプ挿入側に向けられて連結具本体（１）に組み付け
られたときにのみ、ストッパ（２）の厚肉円弧状弾性脚
体（22a ）と連結具本体（１）の幅広孔部（11a ）とが
適合し、ストッパ（２）の薄肉円弧状弾性脚体（22b ）
と連結具本体（１）の幅狭孔部（11b ）とが適合するよ
うに、孔部と円弧状弾性脚体との組み合わせが設定され
ている。従って、ストッパ（２）の表裏を逆にして連結
具本体（１）に取着したときは、厚肉の円弧状弾性脚体
（22a ）と幅狭の孔部（11b ）とが組み合わされるた
め、円弧状弾性脚体（22）と孔部（11）を適正に嵌合す
ることはできず、円弧状弾性脚体が孔部へ嵌め込まれた
ときの装着音も発生せず、ストッパ（２）の逆入れを知
ることができる。That is, the stopper (2) has different thicknesses (t1) and (t2) in the left and right halves including the arc-shaped elastic legs (22) and (22) at the center of the head (21). I have. Corresponding to this, a pair of holes (11) of the connector body (1)
(11) also has a wide hole portion (11a) that fits a thick arcuate elastic leg (22a), and a narrow hole (11b) that fits a thin arcuate elastic leg (22b). Is formed. Only when the stopper (2) is assembled to the connector body (1) with its tapered portion (23a) directed toward the pipe insertion side, the thick circular arc-shaped elastic leg (22a) of the stopper (2). And the wide hole portion (11a) of the connector body (1) are matched with each other, and the thin circular-arc elastic legs (22b) of the stopper (2) are fitted.
The combination of the hole and the arc-shaped elastic leg is set so that the hole and the narrow hole (11b) of the connector body (1) are compatible. Therefore, when the stopper (2) is attached to the connector body (1) with its front and back reversed, the thick arcuate elastic leg (22a) and the narrow hole (11b) are combined. Cannot fit the arcuate elastic leg (22) and the hole (11) properly, no sound is produced when the arcuate elastic leg is fitted into the hole, and the stopper (2) ) You can know the reverse.

【００１９】図３〜図５はこの発明の第２実施例を示す
ものである。この実施例は、ストッパを厚さ方向におい
て非対称形状に構成したものである。FIGS. 3 to 5 show a second embodiment of the present invention. In this embodiment, the stopper is configured to be asymmetric in the thickness direction.

【００２０】即ち、ストッパ（２）の頭部（21）内面に
は、ストッパ（２）の肉厚方向（頭部の高さ方向）の中
央から下半分の範囲にわたって左右２個の係合突起（4
2）（42）が形成されている。一方、連結具本体（１）
の桟部（12）には、幅方向（連結具本体の長さ方向）の
中央から下半分にわたり、前記係合突起に対応する左右
２個の係合孔（41）（41）が形成されている。従って、
ストッパ（２）がそのテーパ部（23a ）をパイプ挿入側
に向けられたときには、図５（ａ）のように前記係合突
起（42）（42）と係合孔（41）（41）がぴったりと嵌ま
ってストッパ（２）が連結具本体（１）に適正状態に組
み付けられる。これに対し、ストッパ（２）の表裏を逆
向きにした場合には、図５（ｂ）のように係合突起（4
2）が係合孔（41）の上方において桟部（12）壁面に衝
当するため、それ以上ストッパ（２）を連結具本体
（１）の径方向内方に押し込むことができず、円弧状弾
性脚体（22）（22）を孔部（11）（11）に適正状態に嵌
合させることができず、これによりストッパ（２）の逆
入れを知ることができる。なお、この第２実施例では、
係合孔（41）（41）を両方の桟部（12）（12）にそれぞ
れ設けておき、ストッパ（２）をいずれの桟部側からで
も組付けることができるものとなされている。That is, on the inner surface of the head (21) of the stopper (2), two engaging projections (left and right) extend from the center to the lower half in the thickness direction (height direction of the head) of the stopper (2). (Four
2) (42) is formed. On the other hand, the connector body (1)
The crosspiece (12) is formed with two right and left engagement holes (41) (41) corresponding to the engagement protrusions from the center in the width direction (the length direction of the connecting member main body) to the lower half. ing. Therefore,
When the stopper (2) has its tapered portion (23a) directed toward the pipe insertion side, the engaging projections (42) (42) and the engaging holes (41) (41) are formed as shown in FIG. The stopper (2) fits snugly and is properly assembled to the connector body (1). On the other hand, when the front and back of the stopper (2) are reversed, as shown in FIG.
2) hits against the wall surface of the crosspiece (12) above the engaging hole (41), so that the stopper (2) cannot be pushed further inward in the radial direction of the connecting member body (1), and The arcuate elastic legs (22) and (22) cannot be fitted in the holes (11) and (11) in an appropriate state, so that it is possible to know that the stopper (2) has been reversed. In the second embodiment,
The engagement holes (41) and (41) are provided in both the crosspieces (12) and (12), respectively, and the stopper (2) can be assembled from either crosspiece side.

【００２１】図６〜図８はこの発明の第３実施例を示す
ものである。この実施例では、円弧状弾性脚体（22）
（22）の対向方向におけるストッパ（２）の頭部（21）
内面の左右いずれか一方の側に、ストッパの肉厚と等し
い長さの係合突起（42´）が設けられている。一方、連
結具本体（１）の桟部（12）には、ストッパ（２）がそ
のテーパ部（23ａ）（23a ）をパイプ挿入側に向けられ
て嵌め入れられたときに、前記係合突起（42´）と合致
する位置に対応係合孔（41´）が形成されている。従っ
て、ストッパ（２）がそのテーパ部（23a ）をパイプ挿
入側に向けられたときには、図８（ａ）のように前記係
合突起（42´）と係合孔（41´）がぴったりと嵌まり合
ってストッパ（２）が連結具本体（１）に適正状態に組
み付けられる。これに対し、ストッパ（２）の表裏を逆
向きにした場合には、図８（ｂ）のように係合突起（42
´）が連結具本体（１）の桟部（12）の壁面に衝当して
ストッパ（２）の取着を妨げ、逆入れ状態を知らせる。
なお、この第３実施例も第２実施例と同じく、係合孔
（41´）を両方の桟部（12）にそれぞれ設けておき、ス
トッパ（２）をいずれの桟部側からでも組み付けること
ができるものとなされている。FIGS. 6 to 8 show a third embodiment of the present invention. In this embodiment, the arc-shaped elastic legs (22)
Head (21) of stopper (2) in the direction opposite to (22)
An engagement protrusion (42 ') having a length equal to the thickness of the stopper is provided on one of the left and right sides of the inner surface. On the other hand, when the stopper (2) is fitted into the crosspiece (12) of the connector body (1) with its tapered portion (23a) (23a) facing the pipe insertion side, the engaging projection is formed. A corresponding engagement hole (41 ') is formed at a position corresponding to (42'). Therefore, when the stopper (2) has its tapered portion (23a) directed toward the pipe insertion side, the engaging projection (42 ') and the engaging hole (41') are exactly fitted as shown in FIG. 8 (a). The stopper (2) is fitted to the connecting member main body (1) in an appropriate state. On the other hand, when the front and back of the stopper (2) are reversed, as shown in FIG.
') Strikes against the wall surface of the crosspiece (12) of the connector body (1) to prevent the stopper (2) from being attached and to inform the reverse insertion state.
In the third embodiment, similarly to the second embodiment, the engaging holes (41 ') are provided in both the crosspieces (12), and the stopper (2) is assembled from either of the crosspieces. Can be done.

【００２２】図９〜１２はこの発明の第４実施例を示す
ものである。この実施例では、ストッパがその厚さ方向
において非対称形状となされたものである。即ち、図９
に示すように、ストッパ（２）の円弧状弾性脚体（22）
（22）の先端は前方平行状に延設されるとともに、各先
端部（24）（24）には、厚さ方向上面（テーパ部（23
ａ）と同じ側）に半球状リブ（25）（25）が突出形成さ
れる一方、厚さ方向下面はリブの形成されていない平坦
面となされている。かつ、前記半球状リブ（25）（25）
の外径は、連結具本体（１）の内半径と連結されるパイ
プ（３）の外半径との差、つまりパイプ（３）を連結具
本体（１）に連結したときのパイプ（３）と連結具本体
（１）との隙間よりも大きく設定されている。また、こ
の実施例では、円弧状弾性脚体（22）（22）の先端部
（24）（24）内面に抜け止め突起（26）（26）が設けら
れている。FIGS. 9 to 12 show a fourth embodiment of the present invention. In this embodiment, the stopper has an asymmetric shape in the thickness direction. That is, FIG.
As shown in the figure, the arc-shaped elastic legs (22) of the stopper (2)
The tip of (22) extends in a front parallel manner, and each tip (24) (24) has an upper surface in the thickness direction (tapered portion (23
On the same side as (a)), hemispherical ribs (25) and (25) are formed so as to protrude, while the lower surface in the thickness direction is a flat surface on which no rib is formed. And the hemispherical ribs (25) (25)
Is the difference between the inner radius of the connector body (1) and the outer radius of the connected pipe (3), that is, the pipe (3) when the pipe (3) is connected to the connector body (1). It is set to be larger than the gap between the connector body (1). In this embodiment, retaining projections (26) (26) are provided on the inner surfaces of the distal ends (24) (24) of the arcuate elastic legs (22) (22).

【００２３】一方、図１０に示すように、連結具本体
（１）の各孔部（11）の周方向両端上縁には、それぞれ
２個合計４個の半円状切欠き部（14）（14）が形成され
ている。この半円状切欠き部（14）（14）は、前記スト
ッパ（２）における半球状リブ（25）（25）の通過を許
容し得るように、該半球状リブよりもわずかに大きく設
定されている。On the other hand, as shown in FIG. 10, two semicircular notches (14), two in total, are provided at the upper edges of both ends in the circumferential direction of each hole (11) of the connector body (1). (14) is formed. The semicircular notches (14) and (14) are set slightly larger than the hemispherical ribs (25) and (25) so as to allow the stopper (2) to pass through. ing.

【００２４】而して、ストッパ（２）がそのテーパ部
（23a ）をパイプ挿入側（紙面上側）に向けられて、連
結具本体（１）の両孔部（11）（11）へ差し込まれると
きは、図１１(a) のように、ストッパ（２）の円弧状弾
性脚体（22）（22）先端の半球状リブ（25）（25）も上
面に位置して、連結具本体（１）の孔部（11）（11）に
設けられた半円状切欠き部（14）（14）と合致する。従
って、ストッパ（２）をそのまま押し進めると、各半球
状リブ（25）（25）が各孔部（11）（11）の前後の半円
状切欠き部（14）（14）を支障なく通過し、図１２のよ
うにストッパ（２）が連結具本体に適正状態に組み付け
られる。これに対し、ストッパ（２）の表裏を逆向きに
した場合には、図１１（ｂ）のように、ストッパ（２）
の半球状リブ（25）（25）が下面に位置するから、スト
ッパ（２）の嵌め入れ時に該半球状リブ（25）（25）が
連結具本体（１）の孔部（11）（11）の下縁壁面に衝当
してストッパ（２）のそれ以上の進入を阻止し、もって
逆入れ状態を知らせる。なお、ストッパ（２）の半球状
リブ（25）（25）は、これを円弧状弾性脚体（22）（2
2）の先端部（24）（24）下面に設けるとともに、半円
状切欠き部（14）も孔部（11）（11）の下縁に設けるも
のとしても良い。また、半球状リブ（25）を、ストッパ
（２）のいずれか一方の円弧状弾性脚体（22）の厚さ方
向の片面または両面に設けることにより、ストッパ
（２）を円弧状弾性脚体（22）（22）の対向方向におい
て非対称形状に構成するとともに、半円状切欠き部（1
4）も対応する一方の孔部にのみ設けて、ストッパ
（２）の逆入れ防止を図るものとしても良い。The stopper (2) is inserted into the two holes (11) and (11) of the connector body (1) with its tapered portion (23a) directed toward the pipe insertion side (upper side in the drawing). In this case, as shown in FIG. 11 (a), the semicircular ribs (25) (25) at the tips of the arcuate elastic legs (22) (22) of the stopper (2) are also located on the upper surface, and the connecting member body ( It matches the semicircular cutouts (14) (14) provided in the holes (11) (11) of 1). Therefore, when the stopper (2) is pushed forward as it is, each hemispherical rib (25) (25) passes through the semicircular notch (14) (14) before and after each hole (11) (11) without any trouble. Then, as shown in FIG. 12, the stopper (2) is properly assembled to the connecting member main body. On the other hand, when the front and back of the stopper (2) are reversed, as shown in FIG.
Since the hemispherical ribs (25) and (25) are located on the lower surface, the hemispherical ribs (25) and (25) are inserted into the holes (11) and (11) of the connector body (1) when the stopper (2) is fitted. ) Against the lower edge wall to prevent further entry of the stopper (2), thereby informing the reverse entry state. The hemispherical ribs (25) (25) of the stopper (2) are connected to the arc-shaped elastic legs (22) (2).
In addition to being provided on the lower surface of the tip portions (24) and (24) of 2), the semicircular notch portion (14) may be provided at the lower edge of the hole portions (11) and (11). Further, by providing the hemispherical rib (25) on one or both sides in the thickness direction of one of the arcuate elastic legs (22) of the stopper (2), the stopper (2) is provided with the arcuate elastic leg. (22) In addition to the asymmetric shape in the facing direction of (22), the semicircular notch (1
4) may be provided in only one corresponding hole to prevent the stopper (2) from being reversed.

【００２５】また、図９〜１２に示した実施例では、円
弧状弾性脚体（22）（22）の先端が延出されるととも
に、先端部内面に抜け止め突起（26）（26）が設けられ
ている。従って、ストッパ（２）の連結具本体（１）へ
の装着状態では、図１２に示すように、円弧状弾性脚体
（22）（22）の先端部（24）（24）が連結具本体（１）
の周面から外方に突出するとともに、円弧状弾性脚体
（22）（22）の内方突出部（23a ）（23a ）の頭部側内
端部（23b ）（23b ）が連結具本体（１）の一方の桟部
（12）の側縁内面に係止し、先端部（24）（24）内面の
抜け止め突起（26）（26）が他方の桟部（12）の側縁外
面に係止して、強固な抜け止め防止が図られている。し
かも、半球状リブ（25）（25）の外径は、連結されるべ
きパイプ（３）と連結具本体（１）との隙間よりも大き
く設定されているから、パイプ（３）と連結具本体
（１）との連結状態において、仮にストッパに抜け方向
の力が加わって突出部内端部（23b ）（23b ）や抜け止
め突起（26）（26）と連結具本体（１）との係合が外れ
ても、半球状リブ（25）（25）がパイプ（３）と連結具
本体（１）との隙間を通過することはできないから、ス
トッパ（２）の不本意な抜落をさらに強固に防止するこ
とができる。In the embodiment shown in FIGS. 9 to 12, the distal ends of the arcuate elastic legs (22, 22) are extended, and retaining projections (26, 26) are provided on the inner surface of the distal end. Have been. Therefore, when the stopper (2) is attached to the connector main body (1), as shown in FIG. 12, the distal ends (24) and (24) of the arc-shaped elastic legs (22) and (22) are connected to the connector main body. (1)
And projecting outward from the peripheral surface of the connecting body, and the head-side inner ends (23b) (23b) of the inwardly protruding portions (23a) (23a) of the arcuate elastic legs (22) (22) (1) is locked to the inner surface of the side edge of one of the crosspieces (12), and the tips (24), (24) of the retaining projections (26), (26) on the inner surface of the other crosspiece (12) By locking to the outer surface, a strong retaining prevention is achieved. In addition, since the outer diameter of the hemispherical ribs (25) and (25) is set to be larger than the gap between the pipe (3) to be connected and the connecting member body (1), the pipe (3) and the connecting member In the state of connection with the main body (1), a force in the removal direction is temporarily applied to the stopper, and the engagement between the inner ends (23b) and (23b) of the protruding portions and the retaining projections (26) and (26) and the connecting member body (1). Since the hemispherical ribs (25) and (25) cannot pass through the gap between the pipe (3) and the connector body (1) even if they come off, the stopper (2) is further unintentionally dropped. It can be firmly prevented.

【００２６】一方、ストッパ（２）の意図的な取り外
し、交換等が必要とされる場合があるが、そのまま抜け
方向に力を加えただけでは、上記のとおりストッパを抜
くことはできず、円弧状弾性脚体（22）（22）の先端部
（24）（24）を大きく拡開した状態で取り外す必要があ
る。円弧状弾性脚体（22）（22）の先端部（24）（24）
は連結具本体（１）の周面から外方に突出しているか
ら、この先端突出部（24）（24）に指を引っ掛けて簡単
に拡開することができ、ストッパを連結具本体（１）か
ら極めて容易に取り外すことができ、ストッパの取り外
し、交換作業等の作業性を向上できる効果もある。この
ように、図９〜１２に示した実施例では、ストッパの不
本意な抜落を有効に防止できるとともに、ストッパの意
図的な取り外しはこれを簡単に行い得るものとなされて
いる。On the other hand, there is a case where the stopper (2) needs to be intentionally removed, replaced, or the like. However, if the force is simply applied in the removal direction, the stopper cannot be removed as described above. The distal ends (24, 24) of the arcuate elastic legs (22, 22) need to be removed in a greatly expanded state. Tip parts (24) (24) of arcuate elastic legs (22) (22)
Protrudes outward from the peripheral surface of the connector main body (1), the finger can be hooked on the front-end protruding portions (24), (24) to easily expand, and the stopper can be connected to the connector main body (1). ) Can be removed very easily, and there is an effect that workability such as removal of a stopper and replacement work can be improved. As described above, in the embodiment shown in FIGS. 9 to 12, unintentional dropping of the stopper can be effectively prevented, and intentional removal of the stopper can be easily performed.

【００２７】なお、円弧状弾性脚体（22）（22）の先端
部（24）（24）の突出形状は、図９〜１２の実施例のも
のに限定されることはなく、例えば図１３のように先端
部（24）（24）を円形に突出形成しても良いし、図１４
のように外向きＬ形に突出形成しても良い。The protruding shape of the distal ends (24, 24) of the arcuate elastic legs (22, 22) is not limited to the embodiment shown in FIGS. The tips (24) and (24) may be formed to project circularly as shown in FIG.
As shown in FIG.

【００２８】図１〜図１４に示した実施例では、連結具
本体（１）内に予め別のアルミニウムパイプ（５）を挿
入して拡管加工し、このパイプ（５）の端部内周面にパ
イプ（３）のＯリング（32）が圧接される構成とした
が、図１５〜図１７のように、パイプ（３）の環状突部
（31）がストッパ（２）と連結具本体（１）の段部（1
3）との間に係止され、連結具本体（１）の端部内周面
にパイプ（３）のＯリング（32）が直接圧接される構成
としても良い。この場合、パイプ（５）と連結具本体
（１）との接続も、ストッパ（２）を介して行われるこ
とになる。なお、図１５〜１７では図９〜１２に示すス
トッパが適用されている。In the embodiment shown in FIGS. 1 to 14, another aluminum pipe (5) is inserted in advance into the connecting member main body (1) and expanded, and an inner peripheral surface of an end portion of the pipe (5) is formed. Although the O-ring (32) of the pipe (3) is press-contacted, as shown in FIGS. 15 to 17, the annular projection (31) of the pipe (3) has the stopper (2) and the connector body (1). ) Step (1
3), and the O-ring (32) of the pipe (3) may be directly pressed against the inner peripheral surface of the end of the connecting member body (1). In this case, the connection between the pipe (5) and the connector body (1) is also performed via the stopper (2). 15 to 17, the stoppers shown in FIGS. 9 to 12 are applied.

【００２９】なお、以上の実施例では、ストッパ（２）
をその厚さ方向あるいは円弧状弾性脚体（22）（22）の
対向方向のいずれか一方において、非対称形状に構成し
た場合を示したが、厚さ方向、円弧状弾性脚体の対向方
向いずれにおいても非対称形状に構成しても良い。In the above embodiment, the stopper (2)
In either the thickness direction or the direction in which the arc-shaped elastic legs (22) and (22) face each other, an asymmetric shape is shown. May be configured in an asymmetric shape.

【００３０】[0030]

【発明の効果】この発明は、上述の次第で、ストッパ
が、厚さ方向あるいは前記円弧状弾性脚体の対向方向に
おいて非対称形状となされることにより、テーパ部がパ
イプ挿入側と反対側を向く配置でストッパが連結具本体
に組み付けられるときの円弧状弾性脚体と孔部との嵌合
を阻止するものとなされており、従ってストッパを表裏
逆向きで組み付けようとした場合には、適正組み付けが
妨げられる結果、その逆入れに容易に気付くことがで
き、直ちにストッパを裏返して適正状態にストッパを組
み付けることができる。このように、ストッパの組み付
け段階で確実に逆入れを防止することができるから、後
刻逆入れに気付いた段階でストッパを外して再装着する
煩わしさや面倒を解消することができ、ワンタッチ式の
連結具であることとも相俟ってパイプの連結作業を益々
簡易化できる。According to the present invention, as described above, the stopper is formed in an asymmetric shape in the thickness direction or the direction opposite to the arc-shaped elastic leg, so that the tapered portion faces the side opposite to the pipe insertion side. When the stopper is assembled to the connector body in the arrangement, it is designed to prevent the fitting of the arc-shaped elastic leg and the hole, so if the stopper is to be assembled upside down, it should be properly assembled As a result, the reverse insertion can be easily noticed, and the stopper can be immediately turned over and the stopper can be assembled in an appropriate state. In this way, it is possible to reliably prevent reverse insertion at the stage of attaching the stopper, so that it is possible to eliminate the trouble and trouble of removing and re-attaching the stopper at the stage when you notice the reverse insertion later, and one-touch connection The connection of pipes can be further simplified, in combination with the tool.

【図面の簡単な説明】[Brief description of the drawings]

【図１】この発明の第１実施例に係るストッパを示すも
ので、（ａ）は斜視図、（ｂ）は円弧状弾性脚体の先端
側から見た正面図である。FIGS. 1A and 1B show a stopper according to a first embodiment of the present invention, wherein FIG. 1A is a perspective view and FIG. 1B is a front view of the arcuate elastic leg viewed from the tip end side.

【図２】図１のストッパが組み付けられる連結具本体を
示すもので、（ａ）は縦断面図、（ｂ）は（ａ）のIIb
−IIb 線の断面図である。FIGS. 2A and 2B show a connecting tool main body to which the stopper of FIG. 1 is assembled, wherein FIG. 2A is a longitudinal sectional view, and FIG.
It is sectional drawing of the -IIb line.

【図３】この発明の第２実施例に係るストッパを示すも
ので、（ａ）は平面図、（ｂ）は（ａ）のIII −III 線
断面図、（ｃ）は円弧状弾性脚体の先端側から見た正面
図である。3A and 3B show a stopper according to a second embodiment of the present invention, wherein FIG. 3A is a plan view, FIG. 3B is a cross-sectional view taken along the line III-III of FIG. 3A, and FIG. FIG. 3 is a front view as viewed from the front end side.

【図４】図３のストッパが組み付けられる連結具本体を
示すもので、（ａ）は縦断面図、（ｂ）は（ａ）のIVb
−IVb 線の断面図である。4A and 4B show a connecting tool main body to which the stopper of FIG. 3 is assembled, wherein FIG. 4A is a longitudinal sectional view, and FIG.
It is sectional drawing of the -IVb line.

【図５】（ａ）は図３のストッパを図４の連結具本体に
適正配置に組付けた状態の横断面図、（ｂ）は逆入れ状
態で組付けた状態の横断面図である。5 (a) is a cross-sectional view of a state in which the stopper of FIG. 3 is properly assembled to the connecting member body of FIG. 4, and FIG. 5 (b) is a cross-sectional view of a state in which the stopper of FIG. .

【図６】この発明の第３実施例に係るストッパを示すも
ので、（ａ）は平面図、（ｂ）は（ａ）のVIb −VIb 線
断面図、（ｃ）は裏面図である。6A and 6B show a stopper according to a third embodiment of the present invention, wherein FIG. 6A is a plan view, FIG. 6B is a cross-sectional view taken along line VIb-VIb of FIG.

【図７】図６のストッパが組み付けられる連結具本体を
示すもので、（ａ）は縦断面図、（ｂ）は（ａ）のVIIb
−VIIb線の断面図である。7A and 7B show a connecting tool main body to which the stopper of FIG. 6 is assembled, wherein FIG. 7A is a longitudinal sectional view, and FIG. 7B is VIIb of FIG.
It is sectional drawing of the -VIIb line.

【図８】（ａ）は図６のストッパを図７の連結具本体に
適正配置に組付けた状態の横断面図、（ｂ）は逆入れ状
態で組付けた状態の横断面図である。8A is a cross-sectional view of a state in which the stopper of FIG. 6 is assembled in a proper arrangement to the connecting member main body of FIG. 7, and FIG. 8B is a cross-sectional view of a state in which the stopper of FIG. .

【図９】この発明の第４実施例に係るストッパを示すも
ので、（ａ）は平面図、（ｂ）は側面図である。9A and 9B show a stopper according to a fourth embodiment of the present invention, wherein FIG. 9A is a plan view and FIG. 9B is a side view.

【図１０】図９のストッパが組み付けられる連結具本体
を示すもので、（ａ）は正面図、（ｂ）は（ａ）の縦断
面図である。10 (a) is a front view, and FIG. 10 (b) is a longitudinal sectional view of FIG. 9 (a).

【図１１】（ａ）は図９のストッパを図１０の連結具本
体に適正配置にて組付けるときの縦断面図、（ｂ）は逆
入れ状態で組付けるときの縦断面図である。11A is a longitudinal sectional view when the stopper of FIG. 9 is assembled to the connecting member body of FIG. 10 in an appropriate arrangement, and FIG. 11B is a longitudinal sectional view when the stopper of FIG.

【図１２】図９のストッパを図１０の連結具本体に適正
配置に組付けた状態の横断面図である。12 is a cross-sectional view showing a state where the stopper shown in FIG. 9 is properly assembled to the connector body shown in FIG. 10;

【図１３】円弧状弾性脚体の先端部の突出形状を変形さ
せたストッパを、連結具本体に組付けた状態の横断面図
である。FIG. 13 is a cross-sectional view of a state in which a stopper having a deformed protruding shape at the distal end portion of the arc-shaped elastic leg is attached to a connector body.

【図１４】円弧状弾性脚体の先端部の突出形状をさらに
変形させたストッパを、連結具本体に組付けた状態の横
断面図である。FIG. 14 is a cross-sectional view of a state in which a stopper in which the protruding shape of the distal end portion of the arcuate elastic leg is further deformed is attached to the connector body.

【図１５】パイプの連結構造の変形例を示すもので、連
結具本体とストッパとパイプとを分離して示す斜視図で
ある。FIG. 15 is a perspective view showing a modified example of the pipe connecting structure, in which the connecting member main body, the stopper, and the pipe are separately illustrated.

【図１６】（ａ）は図１５に示した連結具本体の縦断面
図、（ｂ）は（ａ）のXVI −XVI線断面図である。16A is a vertical cross-sectional view of the connecting member main body shown in FIG. 15, and FIG. 16B is a cross-sectional view taken along line XVI-XVI of FIG.

【図１７】図１５に示したパイプ連結具にパイプを連結
した状態の縦断面図である。FIG. 17 is a longitudinal sectional view showing a state where a pipe is connected to the pipe connecting tool shown in FIG. 15;

【図１８】先行提案に係るパイプ連結具を示すもので、
連結具本体とストッパとパイプとを分離して示す斜視図
である。FIG. 18 shows a pipe connector according to a prior proposal.
It is a perspective view which shows and separates a connection tool main body, a stopper, and a pipe.

【図１９】図１８に示したストッパを示すもので、
（ａ）は平面図、（ｂ）は（ａ）のXIX −XIX 線断面
図、（ｃ）は裏面図である。FIG. 19 shows the stopper shown in FIG. 18;
(A) is a plan view, (b) is a cross-sectional view taken along line XIX-XIX of (a), and (c) is a rear view.

【図２０】（ａ）は図１８のパイプ連結具にパイプを連
結した状態の縦断面図、（ｂ）は横断面図である。20 (a) is a longitudinal sectional view showing a state where a pipe is connected to the pipe connector of FIG. 18, and FIG. 20 (b) is a transverse sectional view.

【符号の説明】 １…連結具本体 11…孔部 14…半円状切欠き部 ２…ストッパ 22…円弧状弾性脚体 23…突出部 23a …テーパ部 25…半球状リブ ３…パイプ 31…環状突部 41、41´…係合孔 42、42´…係合突起[Description of Signs] 1 ... Connector body 11 ... Hole 14 ... Semicircular notch 2 ... Stopper 22 ... Arc-shaped elastic leg 23 ... Protrusion 23a ... Tapered part 25 ... Hemispherical rib 3 ... Pipe 31 ... Annular projections 41, 41 '... engagement holes 42, 42' ... engagement projections

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−191589（ＪＰ，Ａ) 特開 昭57−107493（ＪＰ，Ａ) 特開 平２−21096（ＪＰ，Ａ) 実開 昭60−84891（ＪＰ，Ｕ) 実開 昭56−135590（ＪＰ，Ｕ) 実開 昭63−40693（ＪＰ，Ｕ) 実開 昭62−98888（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 37/00 - 37/28 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-191589 (JP, A) JP-A-57-107493 (JP, A) JP-A-2-21096 (JP, A) Jpn. 84891 (JP, U) Japanese Utility Model Showa 56-135590 (JP, U) Japanese Utility Model Showa 63-40693 (JP, U) Japanese Utility Model Showa 62-98888 (JP, U) (58) Field surveyed (Int. 7 , DB name) F16L 37/00-37/28

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 長さ方向の少なくとも一端部外周面に、
対向する２個の孔部（11）（11）を有する筒状の連結具
本体（１）と、 該連結具本体（１）の前記孔部（11）（11）に外側から
内方突出状態に嵌合される２個の円弧状弾性脚体（22）
（22）を対向配置に有するとともに、該円弧状弾性脚体
（22）（22）の厚さ方向の片面にはパイプ案内用のすり
鉢状テーパ部（23a ）（23a ）が形成されたストッパ
（２）とを具備し、 前記テーパ部（23a ）（23a ）がパイプ挿入側を向く配
置で円弧状弾性脚体（22）（22）と前記孔部（11）（1
1）とを嵌合させることにより、前記ストッパ（２）が
連結具本体（１）に組み付けられた状態で、端部外周に
環状突部（31）を有するパイプ（３）を、連結具本体
（１）の端部からその環状突部（31）が前記円弧状弾性
脚体（22）（22）を通過するまで押し入れて、パイプ
（３）を抜け止め状態に連結するものとなされたパイプ
連結具であって、 前記ストッパ（２）が、厚さ方向あるいは前記円弧状弾
性脚体（22）（22）の対向方向において非対称形状とな
されることにより、テーパ部（23a ）（23a ）がパイプ
挿入側と反対側を向く配置でストッパ（２）が連結具本
体（１）に組み付けられるときの円弧状弾性脚体（22）
（22）と孔部（11）（11）との嵌合を阻止するものとな
されていることを特徴とするパイプ連結具。1. An outer peripheral surface of at least one end portion in a longitudinal direction,
A tubular connecting member main body (1) having two opposing holes (11), (11); and a state in which the connecting member body (1) projects inward from the outside into the holes (11), (11). Two arcuate elastic legs (22) to be fitted to
A stopper (23) having a mortar-shaped tapered portion (23a) (23a) for guiding a pipe on one surface in the thickness direction of the arc-shaped elastic legs (22) and (22). 2), wherein the tapered portions (23a) and (23a) face the pipe insertion side, and the arc-shaped elastic legs (22) and (22) and the holes (11) and (1)
The pipe (3) having the annular projection (31) on the outer periphery of the end is connected to the connector main body in a state where the stopper (2) is assembled to the connector main body (1) by fitting the stopper (2) with the connector main body (1). A pipe which is pushed in from the end of (1) until its annular projection (31) passes through the arc-shaped elastic legs (22), (22) to connect the pipe (3) in a retaining state. A connecting tool, wherein the stopper (2) is formed in an asymmetric shape in a thickness direction or a direction facing the arc-shaped elastic legs (22) (22), so that the tapered portions (23a) and (23a) are formed. An arcuate elastic leg (22) when the stopper (2) is mounted on the coupling body (1) in an arrangement facing the side opposite to the pipe insertion side
A pipe connector characterized in that it prevents fitting between the (22) and the holes (11) (11).
JP28131393A 1992-11-11 1993-11-10 Pipe connector Expired - Fee Related JP3208398B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28131393A JP3208398B2 (en) 1992-11-11 1993-11-10 Pipe connector

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4-301280 1992-11-11
JP30128092 1992-11-11
JP28131393A JP3208398B2 (en) 1992-11-11 1993-11-10 Pipe connector

Publications (2)

Publication Number Publication Date
JPH06207696A JPH06207696A (en) 1994-07-26
JP3208398B2 true JP3208398B2 (en) 2001-09-10

Family

ID=26554132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28131393A Expired - Fee Related JP3208398B2 (en) 1992-11-11 1993-11-10 Pipe connector

Country Status (1)

Country Link
JP (1) JP3208398B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001472U (en) * 2018-12-24 2020-07-02 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 Disassembly-sleeve for easy installation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3871885B2 (en) 2001-01-09 2007-01-24 三桜工業株式会社 Fitting for piping
US7438328B2 (en) 2005-03-25 2008-10-21 Tokai Rubber Industries, Ltd. Quick connector
DE202006017177U1 (en) * 2006-11-10 2007-01-18 Eugster/Frismag Ag Fluid line connection arrangement, especially for connecting pressure and liquid-tight sealed flexible hoses to rigid metal connecting lines, has connecting collar lasered onto end section of first line of weldable thermoplastic material
US8292333B2 (en) 2007-01-31 2012-10-23 Togo Seisakusyo Corporation Pipe joints
JP5687152B2 (en) 2011-08-01 2015-03-18 三桜工業株式会社 Piping joint
KR101930010B1 (en) * 2012-12-26 2018-12-18 한온시스템 주식회사 Cooling module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001472U (en) * 2018-12-24 2020-07-02 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 Disassembly-sleeve for easy installation
KR200492700Y1 (en) 2018-12-24 2020-11-26 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 Disassembly-sleeve for easy installation

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