JPH0351589Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は、二つの棒材を連結する差し込み継手
に関し、特に、前記棒材を差し込み装着及び抜け
止め保持且つ取り外し可能とした差し込み継手に
関する。[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a bayonet joint for connecting two rods, and particularly to a bayonet joint in which the rods can be inserted into the joint and held in place to prevent them from coming off, as well as detachable.

（従来の技術） 従来、二つの棒材（例えば管材）を連結する差
し込み継手として、例えば実開昭57−19088号公
報に開示されたものがあり、この差し込み継手
は、端部内周に中央に向つて内径が大きくなるテ
ーパ内周面が設けられ、該テーパ内周面に続いて
該テーパ内周面の最大内径を内径とする外側円筒
部が設けられ、該外側円筒部に続いて該外側円筒
部内径よりも小さく、管材の外径よりも大きい内
径を有する内側円筒部が設けられ、該内側円筒部
の中央側内周端部に管材の端面が当接する突起が
設けられている継手本体と、該外側円筒部の内周
面と管材外周面とによつて形成される環状空間に
挿入される環状パツキンと、該環状パツキンの外
側に挿入される環状コイルばねとを有するもので
ある。(Prior Art) Conventionally, there is a plug-in joint for connecting two rods (for example, pipe materials), such as that disclosed in Japanese Utility Model Application Publication No. 1988-1988. A tapered inner circumferential surface whose inner diameter becomes larger as the inner circumferential surface increases, an outer cylindrical portion whose inner diameter is the maximum inner diameter of the tapered inner circumferential surface, and an outer cylindrical portion whose inner diameter is the maximum inner diameter of the tapered inner circumferential surface. A joint body that is provided with an inner cylindrical part having an inner diameter smaller than the inner diameter of the cylindrical part and larger than the outer diameter of the pipe material, and a protrusion that is provided at the inner circumferential end on the center side of the inner cylindrical part with which the end surface of the pipe material comes into contact. An annular packing inserted into an annular space formed by the inner circumferential surface of the outer cylindrical portion and the outer circumferential surface of the tube material, and an annular coil spring inserted outside the annular packing.

そして、管材を該差し込み継手に挿入すると、
環状パツキンはその端面が継手本体の外側円筒部
と内側円筒部との境界をなす軸に垂直な面に当接
し、その外周面は外側円筒部の内周面に、その内
周面は管材の外周面に圧接して流体をシールする
ようになり、また流体の圧力や外部からの力によ
つて管材が抜出そうとすると、環状パツキンは管
材と共に、外側に向つて移動し、環状コイルばね
は環状パツキンに押されて継手本体の傾斜内周面
に押付けられて縮径しながら外側に向つて移動
し、管材の外周面に喰込んで管材の抜出しを阻止
するようになつている。 Then, when the tubing is inserted into the bayonet joint,
The end surface of the annular packing contacts the plane perpendicular to the axis that forms the boundary between the outer cylindrical part and the inner cylindrical part of the joint body, its outer circumferential surface contacts the inner circumferential surface of the outer cylindrical part, and its inner circumferential surface contacts the inner circumferential surface of the pipe material. The annular packing comes into pressure contact with the outer circumferential surface to seal the fluid, and when the tubing tries to be pulled out due to the pressure of the fluid or an external force, the annular packing moves outward together with the tubing, and the annular coil spring is pressed by the annular packing against the inclined inner circumferential surface of the joint body, moves outward while reducing its diameter, bites into the outer circumferential surface of the tube material, and prevents the tube material from being pulled out.

（考案が解決しようとする問題点） ところが、上記公報に開示された差し込み継手
は、管材の接続をワンタツチで簡便に行うことが
でき、管材が抜出す虞れがなく、シール性も確実
であるといつた有利な点はあるが、一度二つの管
材を接続してしまうとこの接続した管材を容易に
取り外すことができないといつた問題点があつ
た。(Problems to be solved by the invention) However, the insertion joint disclosed in the above-mentioned publication can easily connect pipes with a single touch, there is no risk of the pipes coming out, and the sealing performance is reliable. Although there are advantages, such as, once the two pipes are connected, there is a problem that the connected pipes cannot be easily removed.

本考案は、上記問題点に鑑みてなされたもので
あつて、二つの棒材を差し込み装着及び抜け止め
保持し、取り外し必要な際は、前記棒材を容易に
取り外すことができ、しかも構造が簡単である差
し込み継手を提供することを主な目的としてい
る。 The present invention has been developed in view of the above-mentioned problems, and it is possible to insert two rods to attach and prevent them from coming off, and when it is necessary to remove the rods, the rods can be easily removed, and the structure is simple. The main objective is to provide a simple bayonet joint.

（問題点を解決するための手段） 本考案は、上記目的を達成するために、筒状の
継手本体の一側部あるいは両側部の内側にリング
体を配設すると共に、該リング体の側方であつて
前記継手本体の中央寄り部位内側に該リング体が
継手本体の中央側に移動するのを阻止する移動阻
止部を設ける一方、該移動阻止部より外側の継手
本体外側部位内側面を外側に向けて縮径する環状
テーパ面となし、該環状テーパ面を、前記継手本
体に棒材を挿入して該棒材外周に前記リング体が
装着された状態で、前記移動阻止部側で前記リン
グ体が開拡可能となり、継手本体外側端部側で前
記リング体を棒材外周面側に押圧するテーパ内径
に形成し、かつ、前記環状テーパ面に、前記棒材
に装着されたリング体が棒材の挿入側移動により
前記移動阻止部側に移動した状態で、該リング体
の前方側であつて継手本体の外側寄りの箇所に、
外部に開口したリング体取外工具挿入用の開孔部
を設けた構成とした。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a ring body inside one side or both sides of a cylindrical joint body, and a ring body on the side of the ring body. On the other hand, a movement preventing part is provided inside the center portion of the joint body to prevent the ring body from moving toward the center of the joint body, while a movement preventing part is provided on the inner side of the outside part of the joint body outside the movement preventing part. An annular tapered surface whose diameter decreases toward the outside, and the annular tapered surface is formed on the movement prevention part side when a bar is inserted into the joint body and the ring body is attached to the outer periphery of the bar. The ring body is expandable and has a tapered inner diameter that presses the ring body toward the outer peripheral surface of the bar on the outer end side of the joint body, and the ring is attached to the bar on the annular tapered surface. In a state where the body has moved toward the movement prevention part due to the insertion side movement of the bar, on the front side of the ring body and near the outside of the joint body,
It has a configuration in which an opening for inserting a ring body removal tool is opened to the outside.

（作用） しかして、上記構成により、棒材を継手本体の
一方より挿入すると、前記リング体が棒材先端部
に押されて継手本体中央側に移動するが、該リン
グ体の移動は前記移動阻止部によつて阻止され、
更に棒材を挿入すると、前記リング体が開拡され
て管材外周に装着される。(Function) With the above configuration, when the bar is inserted from one side of the joint body, the ring body is pushed by the bar tip and moves toward the center of the joint body, but the movement of the ring body is caused by the movement of the ring body. blocked by a blocking part,
When the rod is further inserted, the ring body is expanded and attached to the outer periphery of the tube.

そして、前記棒材を継手本体内に十分に挿入し
た後に引き出し方向に棒材を移動すると、該棒材
の移動と一体に棒材外周に装着されたリング体も
継手本体端部側に移動するが、一定幅移動する
と、前記環状テーパ面に前記リング体の外周面が
接し、更に棒材を引き出し方向に移動すると前記
リング体が前記環状テーパ面により棒材外周面側
に押圧されるので、それ以上は前記リング体の継
手本体端部側への移動が阻止されると共に、前記
押圧により前記リング体が棒材外周面に食い込む
ので棒材の移動も阻止されて抜け止め保持され
る。また、前記棒材を取り外すときは、棒材を継
手本体中央側に押し込むと、前記リング体も継手
本体中央側に一体になつて移動し、該リング体が
前記移動阻止部にて移動阻止された状態で、前記
開孔部にリング体取外工具を挿入して、前記リン
グ体の継手本体端部側への移動を阻止してから、
前記棒材を引き抜くと、上記のように前記リング
体は継手本体端部側への移動を前記取外工具にて
阻止されているので前記リング体が前記環状テー
パ面の移動阻止部側で開拡して前記棒材外周への
装着状態が緩むので、リング体は前記取外工具と
移動阻止部間の位置に置かれたままで、前記棒材
を容易に引き抜いて取り外すことができるのであ
る。 Then, when the bar is moved in the pulling direction after it has been fully inserted into the joint body, the ring body attached to the outer periphery of the bar also moves toward the end of the joint body together with the movement of the bar. However, when the bar is moved by a certain width, the outer circumferential surface of the ring body comes into contact with the annular tapered surface, and when the bar is further moved in the drawing direction, the ring body is pressed toward the outer circumferential surface of the bar by the annular tapered surface. Further movement of the ring body toward the end of the joint body is prevented, and the ring body bites into the outer circumferential surface of the bar due to the pressing force, so that the bar is prevented from moving and is held in place. Further, when removing the bar, when the bar is pushed into the center of the joint body, the ring body also moves integrally to the center of the joint body, and the ring body is prevented from moving by the movement prevention portion. In this state, a ring body removal tool is inserted into the opening to prevent the ring body from moving toward the end of the joint body, and then
When the rod is pulled out, the ring body is prevented from moving toward the end of the joint body by the removal tool as described above, so the ring body opens on the movement prevention portion side of the annular tapered surface. Since the ring body is expanded and loosened from being attached to the outer periphery of the bar, the bar can be easily pulled out and removed while the ring body remains in the position between the removal tool and the movement blocking part.

（実施例） 以下、本考案にかかる差し込み継手を図面の実
施例について説明する。(Example) Hereinafter, the insertion joint according to the present invention will be described with reference to the example shown in the drawings.

本考案にかかる差し込み継手は、第１図に示す
ように、長手方向中央部位に内側に突出された環
状つば部１１と、該つば部１１より外側部位にゴ
ム製密封部材嵌入用の環状凹所部１２と両端縁に
内側に突出する小つば部１６が形成された略筒状
のステンレス製の継手本体１の両側部の内側に欠
円部を有し、内径が棒材（本実施例では管材Ａと
した。以下管材Ａとして述べる）の外径より若干
小さい欠円部を有するリング体２が配設されると
共に、該リング体２の側方であつて前記継手本体
１の中央寄り部位内側の前記環状凹所１２との境
界部位に該リング体２が継手本体１の中央側に移
動するのを阻止する移動阻止部１３が中心部に向
かつて突設される一方、該移動阻止部１３より外
側の継手本体１外側部位内側面が外側に向けて縮
径する環状テーパ面１４に形成され、該環状テー
パ面１４に、ステンレス等の金属製の管材Ａに装
着される前記リング体２が管材の挿入側移動によ
り前記移動阻止部１３側に移動した状態で、該リ
ング体２の前方側であつて継手本体１端部側寄り
の箇所に、外部に開口されたリング体取外工具挿
入用の開孔部１５，１５が設けられたものであ
る。 As shown in FIG. 1, the plug-in joint according to the present invention has an annular flange 11 projecting inwardly at the central portion in the longitudinal direction, and an annular recess for fitting a rubber sealing member at an area outside the flange 11. The substantially cylindrical stainless steel joint body 1 has a small flange 16 projecting inward at both ends thereof, and has a cutout on the inside of both sides, and the inner diameter is made of a bar material (in this example, A ring body 2 having a cutout portion slightly smaller than the outer diameter of the tube material A (hereinafter referred to as tube material A) is provided, and a portion on the side of the ring body 2 and closer to the center of the joint body 1 is provided. A movement prevention part 13 is provided at the boundary with the annular recess 12 on the inner side to prevent the ring body 2 from moving toward the center of the joint body 1, and protrudes toward the center. The ring body 2 is formed on the annular tapered surface 14 on which the inner surface of the outer part of the joint body 1 outside the joint body 13 is formed into an annular tapered surface 14 whose diameter decreases outward. A ring body removal tool is opened to the outside at a location on the front side of the ring body 2 and closer to the end of the joint body 1 when the ring body has moved toward the movement prevention part 13 side due to the movement of the tube material toward the insertion side. Apertures 15, 15 for insertion are provided.

前記環状テーパ面１４は、その面に上記リング
体２の欠円部に係合させるための軸方向に延びる
回り止突起を有し、前記継手本体１に管材Ａを挿
入して該管材Ａ外周に前記リング体２が装着され
た状態で、前記移動阻止部側で前記リング体２が
開拡可能となり、継手本体外側端部側で前記リン
グ体２を管材Ａ外周面側に押圧するテーパ内径に
形成されたものである。即ち、前記環状テーパ面
は、継手本体１端部側部分が、前記管材Ａの外周
に装着された前記リング体２の外周径よりも小さ
い径に形成され、一方前記移動阻止部１３近傍部
分が管材Ａの外周に装着された状態の前記リング
体２の外周径よりも大きい径に形成されたもので
ある。 The annular tapered surface 14 has an axially-extending anti-rotation protrusion for engaging with the occluded portion of the ring body 2, and when the tube material A is inserted into the joint body 1, the outer periphery of the tube material A is removed. When the ring body 2 is attached to the ring body 2, the ring body 2 can be opened and expanded on the movement prevention part side, and the taper inner diameter presses the ring body 2 toward the outer peripheral surface of the tube material A on the outer end side of the joint body. It was formed in That is, the annular tapered surface is formed so that the end portion of the joint body 1 has a smaller diameter than the outer circumferential diameter of the ring body 2 attached to the outer circumference of the tube material A, while the portion near the movement blocking portion 13 has a smaller diameter than the outer circumferential diameter of the ring body 2 attached to the outer circumference of the tube material It is formed to have a larger diameter than the outer circumferential diameter of the ring body 2 attached to the outer circumference of the tube material A.

また、前記管材Ａの外周面所定箇所にはリング
体２が係着される環状凹溝ａが形成されており
（ステンレス管の場合）、一方、前記リング体２の
継手本体中央側の管材Ａ当接部位に、該リング体
２の中心側頂部２１ａが前記管材Ａの環状凹溝ａ
に、前記継手本体１の環状テーパ押圧により食い
込む形状の環状切欠部２ａが形成されている。こ
の環状切欠部２ａは、図示するように、前記リン
グ体２の中央側頂部２１ａより半径方向中心側に
向けて所定寸法切り込んで所定箇所より軸方向即
ち管材Ａに装着した状態で前記継手本体１の中央
側に向けて水平に切り込んでこの切り込んだ部分
を切欠して取り除いた形状のものである。 Further, an annular groove a to which the ring body 2 is engaged is formed at a predetermined location on the outer peripheral surface of the tube material A (in the case of a stainless steel tube), and on the other hand, the tube material A on the center side of the joint body of the ring body 2 At the abutting portion, the center side top portion 21a of the ring body 2 is in the annular groove a of the tube material A.
An annular notch 2a is formed in the annular notch 2a, which is shaped to bite into the annular taper of the joint body 1. As shown in the figure, this annular notch 2a is cut by a predetermined dimension from the central apex 21a of the ring body 2 toward the center in the radial direction, and is attached to the joint main body 1 in the axial direction, that is, the pipe material A from a predetermined location. It has a shape in which a horizontal cut is made towards the center of the plate, and this cut part is removed by notching.

また、前記継手本体１の環状凹溝１２に嵌入さ
れるゴム製の密封部材３は、図示するように、軸
方向の継手本体１中央寄り側端面３ａと継手本体
１端部寄り側端面３ｂに、内部流体及び外部流体
のそれぞれの流体圧により密封部材３の軸方向両
端部が中心側及び外側に開拡する形状の環状切込
み凹所３１，３２が形成されており、継手本体１
中央寄り側部位であつて部材中心側に前記環状切
込み凹所３１により形成された舌部３３は付け根
部より先端になるにつれて細くなると共に、部材
中心側に突き出た形状に形成され、一方、継手本
体１端部寄り側部位であつて部材中心側に前記環
状切込み凹所３１により形成された舌部３４は、
その端縁内径が前記管材Ａの外周径より若干小径
であり、適宜な幅厚を有した形状に形成されてい
る。また、密封部材３の内周面には、軸方向略中
央部位に内側に突出する断面半円弧状の環状小突
起３５が突設されている。 Further, the rubber sealing member 3 fitted into the annular groove 12 of the joint body 1 has an axial end face 3a closer to the center of the joint body 1 and an end face 3b closer to the end of the joint body 1, as shown in the figure. , annular cut recesses 31 and 32 are formed in both axial ends of the sealing member 3 to open and expand toward the center and outside due to the fluid pressures of the internal fluid and external fluid, respectively, and the joint body 1
The tongue portion 33 formed by the annular cut recess 31 on the center side of the member is formed in a shape that tapers from the base to the tip and protrudes toward the center of the member. A tongue portion 34 formed by the annular notch recess 31 on the side closer to the end of the main body 1 and on the center side of the member,
The inner diameter of the end edge thereof is slightly smaller than the outer circumferential diameter of the tube material A, and it is formed into a shape having an appropriate width and thickness. Further, on the inner circumferential surface of the sealing member 3, a small annular projection 35 having a semicircular arc cross section and projecting inward is provided at approximately the center in the axial direction.

しかして、上記構成により、第２図乃至第５図
に示すように管材Ａを継手本体の一方より挿入す
ると、前記リング体２が管材Ａ先端部に押されて
継手本体１中央側に移動するが、該リング体２の
移動は前記移動阻止部１３によつて阻止され、更
に管材Ａを挿入すると、前記リング体２が開拡さ
れて管材Ａ外周に装着される。 With the above configuration, when the tube A is inserted from one side of the joint body as shown in FIGS. 2 to 5, the ring body 2 is pushed by the tip of the tube A and moves toward the center of the joint body 1. However, the movement of the ring body 2 is prevented by the movement prevention portion 13, and when the tube A is further inserted, the ring body 2 is expanded and attached to the outer periphery of the tube A.

そして、前記管材Ａを継手本体１内に十分に挿
入した後に引き出し方向に管材Ａを移動すると、
該管材Ａの移動と一体に管材Ａ外周に装着された
リング体２も継手本体１端部側に移動するが、一
定幅移動すると、前記環状テーパ面１４に前記リ
ング体２の外周面が接し、更に管材Ａを引き出し
方向に移動すると前記リング体２が前記環状テー
パ面１４により管材Ａ外周面側に押圧されるの
で、それ以上は前記リング体２の継手本体１端部
側への移動が阻止されると共に、前記押圧により
前記リング体２の中心側頂部２１ａが管材Ａ外周
面の環状凹溝ａの溝面に食い込むので管材Ａの移
動も阻止されて抜け止め保持される。 Then, after the tube material A is fully inserted into the joint body 1, when the tube material A is moved in the pulling direction,
As the tube material A moves, the ring body 2 attached to the outer periphery of the tube material A also moves toward the end of the joint body 1, but when it moves by a certain width, the outer circumferential surface of the ring body 2 comes into contact with the annular tapered surface 14. When the tube material A is further moved in the drawing direction, the ring body 2 is pressed toward the outer peripheral surface of the tube material A by the annular tapered surface 14, so that the ring body 2 cannot be moved further toward the end of the joint body 1. At the same time, due to the pressing force, the center-side top portion 21a of the ring body 2 bites into the groove surface of the annular groove a on the outer peripheral surface of the tube material A, so that the movement of the tube material A is also prevented and is held in place.

また、前記管材Ａを取り外すときは、第４図に
示すように、管材Ａを継手本体１中央側に押し込
むと、前記リング体も継手本体中央側に一体にな
つて移動し、該リング体２が前記移動阻止部１３
にて移動阻止された状態で、前記開孔部１５にリ
ング体取外工具Ｂを挿入して、前記リング体２の
継手本体１端部側への移動を阻止してから、前記
管材Ａを引き抜くと、上記のように前記リング体
２は継手本体１端部側への移動を前記取外工具に
て阻止されているので前記リング体２が前記環状
テーパ面１４の移動阻止部１３側で開拡して前記
管材Ａ外周への装着状態が緩むので、リング体２
は前記取外工具Ｂと移動阻止部１３間の位置に置
かれたままで、前記管材Ａを容易に引き抜いて取
り外すことができるのである。 Furthermore, when removing the tube material A, as shown in FIG. is the movement blocking portion 13
Insert the ring body removal tool B into the opening 15 to prevent the ring body 2 from moving toward the end of the joint body 1, and then remove the pipe material A. When pulled out, the ring body 2 is prevented from moving toward the end of the joint body 1 by the removal tool as described above, so the ring body 2 is on the movement prevention portion 13 side of the annular tapered surface 14. As the ring body 2 expands and becomes loosely attached to the outer periphery of the pipe material A, the ring body 2
The tube material A can be easily pulled out and removed while remaining in the position between the removal tool B and the movement blocking portion 13.

前記リング体取外工具Ｂとしては、例えば第９
図に示すものが使用され、この取外工具Ｂは、弾
性を有する鋼材からなる線材をその中央箇所で半
円状に曲成しこの曲成部端より水平方向に平行に
延ばし、更にこの平行部分の適宜箇所にて斜め前
方に屈曲してその中央箇所を交差させて、その前
方部分適宜箇所にて再び水平方向に折り曲げて平
行に延ばし、この平行部分の先端近傍箇所にて上
下に直角に折り曲げてその先端を適宜間隔をもた
して対向させたものである。 As the ring body removal tool B, for example, the ninth
The tool shown in the figure is used, and this removal tool B consists of bending a wire rod made of elastic steel into a semicircular shape at its center, extending it in parallel to the horizontal direction from the end of this curved part, and then Bend diagonally forward at an appropriate point on the part, cross the central point, then bend it horizontally again at an appropriate point in front of the part to extend it parallel, and then bend it vertically at right angles at a place near the tip of this parallel part. They are bent and their tips are placed opposite each other with an appropriate distance between them.

そして、この取外工具Ｂを使う際に、長さ方向
略中央部の前記水平方向平行部分を両側より中央
側に互いに押し付けて該平行部分の間隔を狭める
とその前方位置の交差部分を介して前方箇所の水
平方向平行部分と前記先端部が互いに外側に開か
れるので、この状態で前記継手本体１の開孔部１
５，１５に前記取外工具Ｂの先端部を位置させ
て、前記環状テーパ面１４内側の前記移動阻止部
１３前方位置のリング体２の前側に、前記押し付
けを解除することによる取外工具Ｂの弾性復帰に
より前記先端部を挿入して、上記のごとくして該
リング体２を管材Ａより離脱させて管材Ａを継手
本体１より取り外すのである。そして、前記取外
工具Ｂを前記開孔部１５，１５より抜くときも上
記と同様にして先端部を開いて抜き去るようにし
て使用するのである。 When using this removal tool B, when the horizontally parallel parts at approximately the center in the longitudinal direction are pressed against each other from both sides toward the center to narrow the distance between the parallel parts, Since the horizontally parallel portion at the front portion and the tip end are opened outward from each other, the opening 1 of the joint body 1 is opened in this state.
5 and 15, and release the pressing on the front side of the ring body 2 at a position in front of the movement prevention part 13 inside the annular tapered surface 14. The distal end portion is inserted by the elastic return, and the ring body 2 is separated from the tube material A as described above, and the tube material A is removed from the joint body 1. When removing the removal tool B from the openings 15, 15, the distal end is opened and removed in the same manner as described above.

また、前記取外工具Ｂの構成とは逆に、前記開
孔部１５，１５に挿入する先端部が常に開方向の
付勢位置にある構成とした取外工具Ｂも使用でき
るもので、この場合、前記開孔部１５，１５に先
端部を挿入するときは先端部上側箇所を互いに内
側に押し付けて先端部間を狭めて前記リング体２
の前側位置に挿入配置し、管材Ａの取り外しが終
了したら、前記押し付けを解除することにより、
弾性復帰でその先端部を元の開方向の付勢位置に
復帰させるようにした構成の取外工具Ｂを用いる
こともできる。 In addition, a removal tool B can also be used in which, contrary to the configuration of the removal tool B, the tip end inserted into the openings 15, 15 is always in the biased position in the opening direction. In this case, when inserting the distal ends into the openings 15, 15, the upper parts of the distal ends are pressed inwardly to narrow the space between the distal ends, and the ring body 2
When the tube material A is inserted and placed in the front position, and the removal of the tube material A is completed, by releasing the pressing
It is also possible to use a removal tool B having a structure in which the distal end portion is returned to the original biased position in the opening direction by elastic return.

また、本実施例にあつては、継手本体１の環状
凹溝１２にゴム製の密封部材３を嵌入したので、
管材Ａと継手本体１間が完全にシールされ、内部
流体が外部に漏れ出したり、外部流体が管材Ａ内
部に侵入することを防止することができるのであ
る。 In addition, in this embodiment, since the rubber sealing member 3 was fitted into the annular groove 12 of the joint body 1,
The space between the tube material A and the joint body 1 is completely sealed, and internal fluid can be prevented from leaking to the outside and external fluid can be prevented from entering the inside of the tube material A.

第６図、第７図はリング体２の別例を示し、該
リング体２は、断面台形状であつて、継手本体１
中央側の部分の幅が大きく、継手本体１端部側の
部分の幅が小さい断面台形状の形状で、中心側面
２ｂ及び外側面２ｃがテーパ面となつている。 6 and 7 show another example of the ring body 2, the ring body 2 has a trapezoidal cross section, and the joint body 1
It has a trapezoidal cross-section with a large width at the center and a small width at the ends of the joint main body 1, and the center side surface 2b and the outer side surface 2c are tapered surfaces.

この断面台形状のリング体２は、管材Ａの環状
凹溝ａに装着された状態で、第６図に示す継手本
体１の移動阻止部１３近傍箇所に位置した状態よ
り、管材Ａを引き抜き側に移動して該管材Ａと一
体に継手本体１端部側に移動されると、前記外側
面２ｃのテーパ面が継手本体１の環状テーパ面１
４に添つて摺面接して面圧されると共に、該面圧
により内側面２ｂのテーパ面の中心側頂部２ｄが
前記管材Ａの環状凹溝ａの溝面に食い込むので管
財Ａの抜け止め保持が確実にできるのである。 This ring body 2, which has a trapezoidal cross section, is attached to the annular groove a of the tube A and is positioned near the movement prevention portion 13 of the joint body 1 as shown in FIG. When the tube material A is moved to the end side of the joint body 1, the tapered surface of the outer surface 2c becomes the annular tapered surface 1 of the joint body 1.
4 and is subjected to surface pressure due to the sliding surface, and due to this surface pressure, the center side top portion 2d of the tapered surface of the inner surface 2b bites into the groove surface of the annular groove a of the tube material A, so that the tube material A is held in place. can definitely be done.

また、第８図に示すように、リング体２とし
て、ゴム製の輪状帯２ｅに複数個の球体２ｆを埋
該支持したものも適用できる。 Further, as shown in FIG. 8, the ring body 2 may be one in which a plurality of spheres 2f are embedded and supported in a rubber annular band 2e.

尚、本実施例にあつては、管材Ａの外周面に環
状凹溝ａを形成したものについて述べたが、必ず
しも管材Ａの外周面に環状凹溝ａを設ける必要は
なく、外周面がざらついた面である管材（例えば
鋼管、鋳鉄管）あるいは硬度の抵い食い込み易い
面である管材（塩ビ管、ポリエチレン管）等にあ
つては、外周面に環状凹溝ａを設ける必要はない
のである。特に管材Ａがステンレス管等のような
外周面が滑り易いものについては、本実施例のよ
うに外周面に環状凹溝ａを設けた方が好ましく、
管材Ａが上記のようなものについては、抵抗があ
るので、必ずしも外周面に環状凹溝を設ける必要
はない。 In this example, the annular groove a is formed on the outer circumferential surface of the tube material A, but it is not necessarily necessary to provide the annular groove a on the outer circumferential surface of the tube material A, and the outer circumferential surface may be rough. It is not necessary to provide an annular groove a on the outer circumferential surface of pipe materials that have hard surfaces (e.g., steel pipes, cast iron pipes), or pipe materials that have hard surfaces that easily bite (PVC pipes, polyethylene pipes), etc. . In particular, when the tube material A has a slippery outer circumferential surface such as a stainless steel tube, it is preferable to provide an annular groove a on the outer circumferential surface as in this embodiment.
If the tube material A is as described above, there is resistance, so it is not necessarily necessary to provide an annular groove on the outer circumferential surface.

尚、本実施例にあつては、ゴム製の密封部材３
を内装したものについて述べたが、本考案はこれ
に限定されず密封部材を内装していない差し込み
継手にも適用できるものである。 In this embodiment, the rubber sealing member 3
Although the invention has been described with respect to a joint having a sealing member installed therein, the present invention is not limited thereto, and can also be applied to a plug-in joint that does not have a sealing member installed inside.

また、継手本体１の内部に設ける移動阻止部と
しては、本実施例のものに限らず、例えば本実施
例における移動阻止部１３を設けずに密封部材３
を移動阻止部と兼用することも可能である。 Further, the movement prevention part provided inside the joint body 1 is not limited to the one in this embodiment. For example, the movement prevention part 13 in this embodiment is not provided, and the sealing member 3
It is also possible to serve as the movement prevention part.

また、棒材としては、管材に限らず、中実状の
棒材も適用できるものである。 Further, the bar material is not limited to a pipe material, but a solid bar material may also be used.

（考案の効果） 本考案は、以上のような構成を有し、作用をな
すものであるから、棒材を継手本体に簡単に差し
込み装着及び抜け止め保持でき、特に、前記継手
本体の内側に設けた抜け止め保持のための環状テ
ーパ面を継手本体の中央寄り側の移動阻止部側で
前記リング体が開拡可能な内径となし、かつ、該
環状テーパ面に、前記棒材に装着されたリング体
が棒材の挿入側移動により前記移動阻止部側に移
動した状態で、該リング体の前方側であつて継手
本体の外側寄りの箇所に、外部に開口したリング
体取外工具挿入用の開孔部を設けたから、前記棒
材を取り外すときに、棒材を継手本体中央側に押
し込み前記リング体が継手本体中央側に一体にな
つて移動して該リング体が前記移動阻止部にて移
動阻止された状態で、前記開孔部にリング体取外
工具を挿入して、前記リング体の継手本体端部側
への移動を阻止してから、前記棒材を引き抜くこ
とにより、上記のように前記リング体が継手本体
端部側への移動を前記取外工具にて阻止されてい
るので前記リング体が前記環状テーパ面の移動阻
止部側で開拡して前記管材外周への装着状態が緩
むので、リング体は前記取外工具と移動阻止部間
の位置に置かれたままで、前記棒材を容易に引き
抜いて取り外すことができるので、簡単に管材を
継手本体より取り外すことができ、しかも、その
構造が簡単であるといつた効果を有する。(Effects of the invention) Since the present invention has the above-mentioned structure and functions, the bar can be easily inserted into the joint body, installed, and retained without coming off, and in particular, the bar can be easily inserted into the joint body, and the bar can be held in place to prevent it from coming off. The annular tapered surface for retaining the provided retainer has an inner diameter that allows the ring body to be opened and expanded on the movement prevention part side closer to the center of the joint body, and the annular tapered surface is attached to the bar material. In a state where the ring body has moved toward the movement blocking part due to the movement of the rod toward the insertion side, insert a ring body removal tool that is open to the outside into a location on the front side of the ring body and closer to the outside of the joint body. Since an opening is provided for the purpose, when the bar is removed, the bar is pushed into the center of the joint body, and the ring body moves integrally to the center of the joint body, and the ring body moves into the movement prevention part. By inserting a ring body removal tool into the opening to prevent the ring body from moving toward the end of the joint body in a state in which movement is prevented by pulling out the rod, As described above, since the ring body is prevented from moving toward the end of the joint body by the removal tool, the ring body expands on the movement prevention portion side of the annular tapered surface and moves toward the outer periphery of the pipe material. Since the attached state of the fitting is loosened, the ring body remains in the position between the removal tool and the movement blocking part, and the bar can be easily pulled out and removed. Therefore, the pipe can be easily removed from the joint body. Moreover, it has the advantage of having a simple structure.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案にかかる差し込み継手にて管材
を連結する状態を示す一部破断せる分解斜視図、
第２図はその管材の挿入前の一部破断せる側面
図、第３図はその管材を適宜寸法挿入した状態の
一部破断せる側面図、第４図は管材を最も挿入し
た状態の一部破断せる側面図、第５図は管材を第
４図の状態より引き抜き方向に移動した状態の一
部破断せる側面図、第６図は別例のリング体を備
えた継手本体に管材を挿入した状態の一部破断せ
る側面図、第７図はそのリング体の一部破断せる
斜視図、第８図は更に別例のリング体の斜視図、
第９図はリング体取外工具の側面図である。 Ａ……棒材（管材）、Ｂ……リング体取外工具、
１……継手本体、２……リング体、１３……移動
阻止部、１４……環状テーパ面、１５……開孔
部。 FIG. 1 is an exploded perspective view, partially cut away, showing a state in which pipe materials are connected by a plug-in joint according to the present invention;
Figure 2 is a partially cutaway side view before the tube is inserted, Figure 3 is a partially cutaway side view with the tube inserted to the appropriate size, and Figure 4 is a partially cutaway side view of the tube with the tube fully inserted. Fig. 5 is a partially cutaway side view of the pipe material moved in the pulling direction from the state shown in Fig. 4, and Fig. 6 is a side view of the pipe material inserted into a joint body equipped with a different ring body. FIG. 7 is a partially cutaway side view of the ring body, FIG. 8 is a perspective view of another example of the ring body,
FIG. 9 is a side view of the ring body removal tool. A... Bar material (tube material), B... Ring body removal tool,
DESCRIPTION OF SYMBOLS 1... Joint body, 2... Ring body, 13... Movement prevention part, 14... Annular taper surface, 15... Opening part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 筒状の継手本体の一側部あるいは両側部の内側
にリング体を配設すると共に、該リング体の側方
であつて前記継手本体の中央寄り部位内側に該リ
ング体が継手本体の中央側に移動するのを阻止す
る移動阻止部を設ける一方、該移動阻止部より外
側の継手本体外側部位内側面を外側に向けて縮径
する環状テーパ面となし、該環状テーパ面を、前
記継手本体に棒材を挿入して該棒材外周に前記リ
ング体が装着された状態で、前記移動阻止部側で
前記リング体が開拡可能となり、継手本体外側端
部側で前記リング体を棒材外周面側に押圧するテ
ーパ内径に形成し、かつ、前記環状テーパ面に、
前記管材に装着されたリング体が棒材の挿入側移
動により前記移動阻止部側に移動した状態で、該
リング体の前方側であつて継手本体の外側寄りの
箇所に、外部に開口したリング体取外工具挿入用
の開孔部を設けてなることを特徴とする差し込み
継手。 A ring body is disposed inside one side or both sides of the cylindrical joint body, and the ring body is disposed on the side of the ring body and inside a portion closer to the center of the joint body. A movement prevention part is provided to prevent the joint body from moving, and the inner surface of the outer part of the joint body outside the movement prevention part is formed into an annular tapered surface whose diameter decreases outward. When a bar is inserted into the bar and the ring body is attached to the outer periphery of the bar, the ring body can be opened and expanded on the movement prevention part side, and the ring body is attached to the bar on the outer end side of the joint body. Formed with a tapered inner diameter that presses toward the outer peripheral surface, and on the annular tapered surface,
When the ring body attached to the pipe material moves toward the movement prevention part side due to the insertion side movement of the bar material, a ring that is opened to the outside at a location on the front side of the ring body and closer to the outside of the joint body. A plug-in joint characterized by having an opening for inserting a body removal tool.