JP2792692B2 - Pipe fittings - Google Patents

Pipe fittings

Info

Publication number
JP2792692B2
JP2792692B2 JP1316645A JP31664589A JP2792692B2 JP 2792692 B2 JP2792692 B2 JP 2792692B2 JP 1316645 A JP1316645 A JP 1316645A JP 31664589 A JP31664589 A JP 31664589A JP 2792692 B2 JP2792692 B2 JP 2792692B2
Authority
JP
Japan
Prior art keywords
stopper
diameter
peripheral surface
retaining member
opening
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
JP1316645A
Other languages
Japanese (ja)
Other versions
JPH03177688A (en
Inventor
敏行 石保
豊 吉野
義昭 梶木
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP1316645A priority Critical patent/JP2792692B2/en
Publication of JPH03177688A publication Critical patent/JPH03177688A/en
Application granted granted Critical
Publication of JP2792692B2 publication Critical patent/JP2792692B2/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
    • F16L37/092—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe

Landscapes

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

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、水道管等の配管に使用される管継手に関す
る。Description: TECHNICAL FIELD The present invention relates to a pipe joint used for piping such as a water pipe.

（従来の技術） 水道管等の配管に使用される管継手として、近時、接
続すべき一方の管の挿し口を他方の管の受け口内に挿入
するだけで、挿し口と受け口とを接続し得る管継手が開
発されている。例えば、実開昭62−9784号公報には、受
け口の内周面に設けられた凹部と、該凹部に配置され、
拡径しつつ挿し口を挿入させ、縮径しつつ挿し口の外周
面を係止してその抜け止めを行う抜け止め具とを備えた
管継手が開示されている。そして該凹部には、挿し口挿
入時の抜け止め具の拡径を許容するための抜け止め具の
まわりの隙間が形成されている。また該凹部には、挿し
口抜出時の抜け止め受の縮径を強制するための抜け止め
具との接当部も形成されている。(Prior art) As a pipe joint used for pipes such as water pipes, recently, just by inserting the insertion port of one pipe to be connected into the receptacle of the other pipe, the insertion port is connected to the receptacle. Possible fittings have been developed. For example, Japanese Utility Model Application Laid-Open No. Sho 62-9784 discloses a concave portion provided on the inner peripheral surface of a receptacle, and a concave portion provided in the concave portion.
There is disclosed a pipe joint including a stopper that allows an insertion port to be inserted while expanding the diameter, and that locks the outer peripheral surface of the insertion port while reducing the diameter to prevent the insertion port from falling off. In the concave portion, a clearance is formed around the stopper to allow the stopper to expand in diameter when the insertion opening is inserted. The recess is also provided with a contact portion with a stopper for forcibly reducing the diameter of the stopper for removing the insertion opening.

このような管継手において、受け口内周面の凹部に配
置された抜け止め具内に挿し口が挿入されようとする
と、該抜け止め具は拡径してその中に挿し口を円滑に挿
入させる。挿し口が抜け止め具内に挿入された状態で、
該挿し口が受け口から抜ける方向に移動しようとする
と、該挿し口の移動に伴って抜け止め具が該挿し口と共
に移動する。これにより、該抜け止め具は凹部における
抜け止め具との接当部に接当し、その接当によって抜け
止め具が縮径変形し、その変形した抜け止め具によって
挿し口外周面が係止され、これによって該挿し口の受け
口からの抜け止めが行われる。In such a pipe joint, when the insertion opening is to be inserted into the retaining device arranged in the concave portion of the inner peripheral surface of the receiving port, the retaining device is expanded in diameter and the insertion port is smoothly inserted therein. . With the insertion slot inserted into the stopper,
When the insertion port attempts to move in a direction to come out of the receiving port, the retaining member moves together with the insertion port with the movement of the insertion port. As a result, the stopper comes into contact with the contact portion of the recess with the stopper, the stopper is reduced in diameter by the contact, and the outer peripheral surface of the insertion opening is locked by the deformed stopper. As a result, the insertion port is prevented from falling out of the receptacle.

（発明が解決しようとする課題） このような従来の管継手では、受け口内周面の凹部
に、抜け止め具まわりの隙間が存在するため、該抜け止
め具が、管継手の運搬時の振動等に起因して偏心したり
傾斜したりすることがある。このような状態で挿し口を
受け口に挿入しようとすると、該挿し口が抜け止め具に
突き当たってその挿入が遮られ、異常に大きな挿入力が
必要となったり、挿入が全く行えなかったりする。(Problems to be Solved by the Invention) In such a conventional pipe joint, since the clearance around the stopper is present in the concave portion of the inner peripheral surface of the receptacle, the stopper is subjected to vibration during transportation of the joint. Eccentricity or inclination may occur due to such factors. If an attempt is made to insert the insertion port into the receiving port in such a state, the insertion port hits the stopper and the insertion is interrupted, so that an extraordinarily large insertion force is required or insertion cannot be performed at all.

本発明は、このような事態が回避でき、挿し口挿入時
の操作性が良好な管継手を提供することを目的としてい
る。An object of the present invention is to provide a pipe joint which can avoid such a situation and has good operability when inserting the insertion port.

（課題を解決するための手段） 本発明の管継手は、内周面に凹部が設けられ、接続す
べき挿し口を挿入させるために開口している受け口と、
該凹部に配置され、拡径しつつ挿し口を挿入させ、縮径
しつつ挿し口の外周面を係止してその抜け止めを行う抜
け止め具とを備え、該凹部には、挿し口挿入時の抜け止
め具の拡径を許容するための抜け止め具まわりの隙間が
形成されている管継手であって、該凹部の奥側に保持さ
れる被保持部と、内面によって抜け止め具の外面を弾性
支持し、抜け止め具の拡径が能なようにスリップを有
し、凹部に配置される抜け止め具支持部とからなる抜め
止め具用の位置決め部材を備えており、そのことによっ
て本発明の目的が達成される。(Means for Solving the Problems) The pipe joint of the present invention is provided with a concave portion on the inner peripheral surface thereof, and a receiving opening which is opened for inserting an insertion opening to be connected.
A stopper that is disposed in the recess, inserts the insertion port while increasing the diameter, and locks the outer peripheral surface of the insertion port while reducing the diameter to prevent the insertion of the insertion port. A pipe joint in which a gap around the stopper is formed to allow the diameter of the stopper to expand at the time, and a held part held on the inner side of the recess and an inner surface of the stopper. A retaining member for retaining the stopper, which elastically supports the outer surface, has a slip so that the diameter of the stopper can be expanded, and includes a stopper supporting portion disposed in the concave portion; Accordingly, the object of the present invention is achieved.

（作用） このような管継手にあっては、その内周面の凹部に前
記抜け止め具用の位置決め部材が配置されている。該位
置決め部材は、その被保持部が受け口と同芯に保持され
ており、且つ、該被保持部と同芯の抜け止め具支持部に
て前記抜け止め具を支持しているため、該位置決め部材
の抜け止め具支持部にて支持される前記抜け止め具は、
径方向の位置が受け口と同芯となるように位置決めされ
る。従って、管継手の運搬時の振動等が生じても抜け止
め具の偏心や傾斜等が抑えられる。しかも該位置決め部
材の抜け止め具支持部は抜け止め具をその拡径が可能な
ようにその内面に弾性支持できるようになっているた
め、挿し口挿入時には抜け止め具を拡径させて挿し口を
抜け止め具内に円滑に挿入することができる。(Operation) In such a pipe joint, a positioning member for the stopper is disposed in a concave portion of the inner peripheral surface. In the positioning member, the held portion is held concentrically with the receiving port, and the retaining member is supported by the retaining member support portion that is concentric with the held portion. The retaining member supported by the retaining member support portion of the member,
It is positioned so that the radial position is concentric with the receiving port. Therefore, even if vibration or the like occurs during transportation of the pipe joint, eccentricity, inclination, and the like of the stopper are suppressed. In addition, the retaining member support portion of the positioning member can elastically support the inner surface of the retaining member so that the retaining member can be expanded in diameter. Can be smoothly inserted into the stopper.

（実施例） 以下、本発明の実施例について説明する。(Example) Hereinafter, an example of the present invention will be described.

本発明の管継手の一実施例を第１図に示す。該管継手
は、接続すべき管の挿し口40を挿入させるための開口部
21を有する受け口20を備えている。One embodiment of the pipe joint of the present invention is shown in FIG. The pipe joint has an opening for inserting an insertion port 40 of a pipe to be connected.
A receptacle 20 having 21 is provided.

該受け口20の開口部21近傍の内周面には、環状のシー
ル部材30を装入するための凹溝22が全周にわたって設け
られている。該凹溝22内には、例えばゴム製のシール部
材30が装入される。そして、その状態で受け口20内に挿
し口40が装入されると、該シール部材30によって受け口
20内の外部に対するシールが行われる。On the inner peripheral surface near the opening 21 of the receiving port 20, a concave groove 22 for inserting the annular seal member 30 is provided over the entire circumference. Into the concave groove 22, a rubber seal member 30, for example, is inserted. Then, when the insertion port 40 is inserted into the reception port 20 in this state, the reception port is
Sealing to the outside within 20 is performed.

該受け位置20におけるシール部材30用の凹溝22よりも
奥側の内周面には、凹部23が設けられており、該凹部23
内には、抜け止め具10が配置されるようになっている。A concave portion 23 is provided on the inner peripheral surface on the inner side of the concave groove 22 for the seal member 30 at the receiving position 20.
Inside, a stopper 10 is arranged.

該凹部23における、受け口20の開口部21側の内周面23
aは、開口部21側になるにつれて順次縮径したテーパー
面となっている。該テーパー面よりなる内周面23aに連
なる中間の内周面23bは、受け口20の軸心と略並行な内
周面になっている。そして、この中間の内周面23bに連
なる最奥側の内周面23cは、軸心とは直交する面に対し
て軸心側が受け口10の奥側に位置するように若干傾斜し
たテーパー面となっている。The inner peripheral surface 23 of the recess 23 on the opening 21 side of the receiving port 20
“a” is a tapered surface whose diameter is gradually reduced toward the opening 21 side. An intermediate inner peripheral surface 23b continuous with the inner peripheral surface 23a formed of the tapered surface is an inner peripheral surface substantially parallel to the axis of the receiving port 20. The innermost peripheral surface 23c connected to the intermediate inner peripheral surface 23b is a tapered surface that is slightly inclined such that the axis side is located on the inner side of the receiving port 10 with respect to a plane orthogonal to the axis. Has become.

該凹部23は、その内周面23a、23b、23cと抜け止め具1
0との間に、挿し口40が受け口20に挿入されるとき（挿
し口挿入時）の抜け止め具10の拡径を許容するための隙
間Ｓを有している。また該凹部23の内周面23a、23b、23
cのうち、受け口20の開口部21側の内周面23aは、挿し口
40が受け口20から抜ける方向へ移動するとき（挿し口抜
出し時）に抜け止め具10に接当して該抜け止め具10を縮
径させ、該抜け止め具10による挿し口40外周面の係止の
程度を強めて該抜け止め具10による挿し口40の抜け止め
効果を強める接当部として機能するようになっている。The recess 23 has its inner peripheral surfaces 23a, 23b, 23c and the stopper 1
A gap S is provided between the opening S to allow the stopper 40 to be expanded in diameter when the insertion port 40 is inserted into the receptacle 20 (when the insertion port is inserted). Also, the inner peripheral surfaces 23a, 23b, 23 of the concave portion 23
Of c, the inner peripheral surface 23a on the opening 21 side of the receptacle 20 is an insertion port.
When the moving member 40 moves in the direction to come out of the receiving port 20 (when the insertion port is removed), the stopper member 10 comes into contact with the retaining member 10 to reduce the diameter of the retaining member 10. It functions as a contact portion that enhances the degree of stopping and enhances the effect of the stopper 10 to prevent the insertion opening 40 from coming off.

該凹部23内に嵌合される抜け止め具10は、例えば鋼製
であって円筒状をしており、縮径および拡径し得るよう
に、その周方向の一膨が第２図にも示すように切欠部10
aにて分割されている。The stopper 10 fitted in the recess 23 is made of, for example, steel and has a cylindrical shape, and its circumferential bulge is also shown in FIG. 2 so that the diameter can be reduced and expanded. Notch 10 as shown
Divided by a.

該抜け止め具10は、それが凹部23内にて適正姿勢をと
った状態で、受け口20の開口部21側に位置することとな
る外周面10aが、該開口部21側になるに連れて順次縮径
したテーパー面になっている。該テーパー面よりなる外
周面10aに連なる中間の外周面10bは、軸心とは略並行な
外周面になっている。そして、この中間の外周面10bに
連なる最奥側の外周面10cは、抜け止め具10が適正姿勢
をとったときに、前記凹部23の最奥側の内周面23cに略
並行な状態となるようになっている。With the stopper 10 in a state in which it takes an appropriate posture in the concave portion 23, as the outer peripheral surface 10a to be located on the opening 21 side of the receiving port 20 becomes closer to the opening 21 side. It has a tapered surface whose diameter is gradually reduced. An intermediate outer peripheral surface 10b continuous with the outer peripheral surface 10a formed of the tapered surface is an outer peripheral surface substantially parallel to the axis. The outermost peripheral surface 10c connected to the intermediate outer peripheral surface 10b is in a state substantially parallel to the innermost peripheral surface 23c of the concave portion 23 when the stopper 10 takes an appropriate posture. It is becoming.

前記凹部23には、抜け止め具10に上記適正姿勢をとら
せるために、受け口20にてそれと同芯に保持される被保
持部51と、該被保持部51と同芯であり抜け止め具10をそ
の拡径が可能なように弾性支持する抜け止め具支持部52
とを備えてなる位置決め部材50（第３図および第４図参
照）が配置される。The recessed portion 23 has a held portion 51 held concentrically with the receiving portion 20 in order to cause the retaining member 10 to take the above-described proper posture, and a retaining member coaxial with the retained portion 51. Retaining stopper support 52 that elastically supports 10 so that its diameter can be expanded.
And a positioning member 50 (see FIGS. 3 and 4) having the following.

該位置決め部材50の被保持部51は、さらに具体的に
は、前記受け口20における凹部23の奥側に連なる円筒部
24の内径に相応する外径を有する円筒状部分からなり、
該被保持部51は、受け口20における凹部23の奥側の円筒
部24の内側に嵌合されることにより、受け口20と同芯に
保持されるようになっている。More specifically, the held portion 51 of the positioning member 50 is a cylindrical portion connected to the back side of the concave portion 23 in the receptacle 20.
Consists of a cylindrical part with an outer diameter corresponding to the inner diameter of 24,
The held portion 51 is held concentrically with the receiving port 20 by being fitted inside the cylindrical portion 24 on the deep side of the concave portion 23 in the receiving port 20.

前記位置決め部材50の抜け止め具支持部52は、さらに
具体的には、前記被保持部51の開口部21側にこれと同芯
に連なり開口部21側ほど順次拡径した第１テーパー部52
bと、該第１テーパー部分52bの開口部21側に連なり開口
部21側ほど順次縮径した第２テーパー部分52aとの組合
わせからなる。そして、該第１テーパー部分52bの外周
面と前記凹部23の最奥側の内周面23cとのなす角度θ２
は、該第２テーパー部分52aの外周面が軸心方向となす
角度θ１よりも大きく設定されている。また、前記抜け
止め具支持部52には、複数のスリット54が設けられてお
り、該スリット54の作用によって該抜け止め具支持部52
は拡径変形し易いようになっている。また、前記抜け止
め具位置決め部材50は、その受け口20内への挿入を容易
にするための縮径が可能なように、その周方向の一部が
切欠部53にて分断されている。More specifically, the retaining member supporting portion 52 of the positioning member 50 is, more specifically, a first tapered portion 52 which is concentrically connected to the opening 21 side of the held portion 51 and which has a diameter gradually increased toward the opening 21 side.
b and a combination of a second tapered portion 52a which continues to the opening 21 side of the first tapered portion 52b and has a diameter gradually reduced toward the opening 21 side. The angle θ 2 formed between the outer peripheral surface of the first tapered portion 52b and the inner peripheral surface 23c on the innermost side of the concave portion 23.
The outer peripheral surface of the second tapered portion 52a is set larger than the angle theta 1 which forms the axial direction. Further, the retaining member support portion 52 is provided with a plurality of slits 54, and the action of the slit 54 allows the retaining member supporting portion 52 to be formed.
Is adapted to be easily expanded and deformed. The retaining member positioning member 50 is partially cut at a notch 53 in a circumferential direction so that the diameter of the retaining member positioning member 50 can be reduced to facilitate insertion into the receiving port 20.

このような管継手を使用する場合、まず、位置決め部
材50を切欠部53の空隙が小さくなるように縮径させて該
抜け止め具位置決め部材50を受け口20内へ挿入する。そ
して、その縮径の状態から反撥拡径させ、被保持部51を
受け口20における奥側の円筒部24に嵌合し、その嵌合に
よって被保持部51を受け口20と同心に保持する。この状
態では、前記縮径に対する反撥力で被保持部51が強く保
持される。そして、その状態の位置決め部材50における
抜け止め具支持部材52内には、該支持部52をそのスリッ
ト54を利用して拡径させて抜け止め具10を装入し、該抜
け止め具10を支持する。このように抜け止め具10が支持
された場合え、前記被保持部51が受け口20と同心に保持
されており、且つ、該被保持部51と抜け止め具支持部52
とは同心状態にあるため、位置決め部材50の抜け止め具
支持部52にて支持される抜け止め具10は、径方向の位置
が受け口20と同心となるように位置決めされる。従っ
て、管継手の運搬時の振動等が生じても抜け止め具10の
偏心や傾斜等が抑えられる。しかも該位置決め部材50の
抜け止め具支持部52は、抜け止め具10をその拡径が可能
なようにその内面に弾性支持できるようになっているた
め、挿し口装入時には抜け止め具10を拡径させて挿し口
40を抜け止め具10内へ円滑に挿入することができる。When such a pipe joint is used, first, the positioning member 50 is reduced in diameter so that the gap of the notch 53 becomes small, and the stopper positioning member 50 is inserted into the receiving port 20. Then, the diameter of the held portion 51 is increased by repulsion from the reduced diameter state, and the held portion 51 is fitted to the inner cylindrical portion 24 of the receiving port 20, and the held portion 51 is held concentrically with the receiving port 20 by the fitting. In this state, the held portion 51 is strongly held by the repulsive force against the reduced diameter. Then, in the retaining member support member 52 of the positioning member 50 in that state, the retaining member 10 is inserted by using the slit 54 to expand the diameter of the supporting portion 52, and the retaining member 10 is inserted. To support. When the retaining member 10 is thus supported, the held portion 51 is held concentrically with the receiving port 20, and the retained portion 51 and the retaining member supporting portion 52 are supported.
Is concentric, the retaining member 10 supported by the retaining member support portion 52 of the positioning member 50 is positioned such that the radial position is concentric with the receiving port 20. Therefore, even if vibrations or the like occur during transportation of the pipe joint, eccentricity, inclination, and the like of the stopper 10 are suppressed. In addition, the retaining member support portion 52 of the positioning member 50 is configured to elastically support the retaining member 10 on its inner surface so that the diameter of the retaining member 10 can be expanded. Enlarge and insert
40 can be smoothly inserted into the stopper 10.

なお、本実施例においては、前記位置決め部材50の抜
け止め具支持部材52の外周面のなす２つの角度θ1,θ２
の相互の関係を、上記のようにθ１＜θ２としてあるた
め、該抜け止め具支持部52内に抜け止め具10を装入した
状態では、第５図に示すように第２テーパー部分52aが
開口部21側ほど拡径した状態となり、挿し口抜出時にお
ける挿し口40およびこれの外周面に食い込んでいる抜け
止め具10は開口部21側へ容易に移動できるようになり、
該抜け止め具10と前記凹部23の開口部21側内周面23aと
の接当も容易となる。In the present embodiment, two angles θ 1 and θ 2 formed by the outer peripheral surface of the retaining member support member 52 of the positioning member 50 are provided.
Since the mutual relationship is defined as θ 1 <θ 2 as described above, in a state where the stopper 10 is inserted into the stopper support 52, as shown in FIG. 52a is in a state in which the diameter is enlarged toward the opening 21 side, the insertion stopper 40 at the time of insertion and withdrawal of the insertion hole 40 and the stopper 10 which bites into the outer peripheral surface thereof can be easily moved to the opening 21 side,
The contact between the stopper 10 and the inner peripheral surface 23a of the recess 23 on the opening 21 side is also facilitated.

尚、抜け止め具10の形状は、第２図に示すｃ形の一体
形のほか、複数に分割された円弧状の係止体を弾性材で
連結して円環状として分割形のものでも良い。Incidentally, the shape of the stopper 10 may be an integral type of the c-shape shown in FIG. 2, or may be a split type having a plurality of arcuate locking members connected by an elastic material to form an annular shape. .

（別実施例） 第６図に示すように、受け口20における奥側の円筒部
24の内周面には凹溝24aを全周にわたって設ける一方、
該凹溝24aに嵌合し得る内周突条51aを、位置決め部材50
の被保持部51の外周面に設け、位置決め部材50を前記凹
部23に配置するときに、前記円周突周51aを前記凹溝24a
に嵌め込むようにした実施例が考えられる。このような
実施例においては、位置組め部材50の受け口20からの離
脱が前記両者の嵌合によって阻止されるようになり、位
置決め部材50を受け口20内に装入するときに位置決め部
材50を前記切欠き53を利用して縮径させ、その反撥力で
その被保持部51を前記円筒部24にて強く保持するという
必要性がなくなる。(Another embodiment) As shown in FIG.
While a concave groove 24a is provided on the inner peripheral surface of the entire circumference 24,
The inner peripheral ridge 51a that can be fitted into the concave groove 24a is
When the positioning member 50 is provided in the concave portion 23, the circumferential protrusion 51a is provided on the outer peripheral surface of the
An embodiment is considered in which it is fitted in the. In such an embodiment, the disengagement of the positioning member 50 from the receiving port 20 is prevented by the fitting of the two, and the positioning member 50 is inserted into the receiving port 20 when the positioning member 50 is inserted into the receiving port 20. It is not necessary to reduce the diameter by using the notch 53 and to strongly hold the held portion 51 by the cylindrical portion 24 by the repulsive force.

また第７図に示すように、位置決め部材50の被保持部
51を、上記実施例のような円筒状のものとはせずに開口
部21側ほど縮径したテーパー状のものとなした実施例も
考えられる。このような実施例においては、挿し口40の
抜け止め具10内への挿入を完了した状態で、前記テーパ
ー状の被保持部51は挿し口40と受け口20奥部の円筒部24
との間に拘束されると共に位置決め部材50の開口部21側
が矢印の方向へ変形して拡径した状態となり、抜け止め
具10および挿し口40は前記接当部となる内周面23a側へ
移動し易くなる。Also, as shown in FIG.
An embodiment is also conceivable in which the 51 is not a cylindrical one as in the above-described embodiment but a tapered one whose diameter decreases toward the opening 21 side. In such an embodiment, when the insertion of the insertion port 40 into the stopper 10 has been completed, the tapered held portion 51 is connected to the insertion port 40 and the cylindrical portion 24 at the back of the receiving port 20.
While the opening 21 side of the positioning member 50 is deformed in the direction of the arrow to expand the diameter, and the stopper 10 and the insertion port 40 are moved toward the inner peripheral surface 23a serving as the contact portion. Easy to move.

（発明の効果） 本発明の管継手においては、受け口内周面に設けられ
た凹部に、前記抜け止め具用の位置決め部材が配置され
ているため、該位置決め部材によって抜け止め具が径方
向に軸心と同心に所定位置に位置決めされる。その結
果、挿し口挿入時に挿し口が抜け止め具に突き当たると
いうような事態が回避される。しかも、挿し口挿入時に
該位置決め部材は、抜け止め具のその拡径を可能とする
ようにその内面に弾性支持するので、その挿入が円滑に
行える。従って、本発明の管継手によれば、挿し口挿入
時の作業性が改善され、本発明の目的が達成される。(Effect of the Invention) In the pipe joint of the present invention, since the positioning member for the retaining member is arranged in the concave portion provided on the inner peripheral surface of the receiving port, the retaining member is radially moved by the positioning member. It is positioned at a predetermined position concentrically with the axis. As a result, it is possible to avoid a situation where the insertion hole hits the stopper when the insertion hole is inserted. In addition, since the positioning member is elastically supported on the inner surface of the stopper so that the diameter of the stopper can be increased when the insertion port is inserted, the insertion can be performed smoothly. Therefore, according to the pipe joint of the present invention, the workability at the time of inserting the insertion port is improved, and the object of the present invention is achieved.

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

第１図は本発明の管継手の一実施例を挿入途中の挿し口
と共に示す部分断面図、第２図は該管継手に用いられる
抜け止め具を示す部分断面図、第３図は該管継手に用い
られる位置決め部材を示す側面図、第４図はその正面
図、第５図は挿し口挿入後の状態を示す断面図、第６図
および第７図は本発明の管継手の別実施例を挿入途中の
挿し口と共に示す断面図である。 10……抜け止め具、20……受け口、23……凹部、40……
挿し口、50……抜け止め具位置決め部材、51……被保持
部、52……抜け止め具支持部、Ｓ……隙間。FIG. 1 is a partial cross-sectional view showing an embodiment of the pipe joint of the present invention together with an insertion port during insertion, FIG. 2 is a partial cross-sectional view showing a stopper used in the pipe joint, and FIG. FIG. 4 is a front view of a positioning member used for the joint, FIG. 4 is a front view thereof, FIG. 5 is a cross-sectional view showing a state after an insertion hole is inserted, and FIGS. 6 and 7 show another embodiment of the pipe joint of the present invention. It is sectional drawing which shows an example with the insertion opening in the middle of insertion. 10 ... stopper, 20 ... socket, 23 ... recess, 40 ...
Insertion hole, 50: retaining member positioning member, 51: held portion, 52: retaining member support portion, S: gap.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】内周面に凹部が設けられ、接続すべき挿し
口を挿入させるために開口している受け口と、該凹部に
配置され、拡径しつつ挿し口を挿入させ、縮径しつつ挿
し口の外周面を係止してその抜け止めを行う抜け止め具
とを備え、該凹部には、挿し口挿入時の抜け止め具の拡
径を許容するための抜け止め具まわりの隙間が形成され
ている管継手であって、該凹部の奥側に保持される被保
持部と、内面によって抜け止め具の外面を弾性支持し、
抜け止め具の拡径が可能なようにスリットを有し、凹部
に配置される抜け止め具支持部とからなる抜け止め具用
の位置決め部材を備えていることを特徴とする管継手。A recess provided on an inner peripheral surface thereof, which is open for inserting a socket to be connected; and a recess which is disposed in the recess and which is inserted while increasing its diameter. A stopper which locks the outer peripheral surface of the insertion opening to prevent the insertion of the insertion opening, the clearance around the stopper for allowing the expansion of the diameter of the stopper when the insertion opening is inserted. Is formed, the held portion held on the back side of the concave portion, the outer surface of the stopper is elastically supported by the inner surface,
A pipe joint, comprising: a slit for allowing a diameter of the stopper to be increased; and a positioning member for the stopper, the stopper including a stopper supporting portion disposed in a recess.
JP1316645A 1989-12-05 1989-12-05 Pipe fittings Expired - Fee Related JP2792692B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1316645A JP2792692B2 (en) 1989-12-05 1989-12-05 Pipe fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1316645A JP2792692B2 (en) 1989-12-05 1989-12-05 Pipe fittings

Publications (2)

Publication Number Publication Date
JPH03177688A JPH03177688A (en) 1991-08-01
JP2792692B2 true JP2792692B2 (en) 1998-09-03

Family

ID=18079334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1316645A Expired - Fee Related JP2792692B2 (en) 1989-12-05 1989-12-05 Pipe fittings

Country Status (1)

Country Link
JP (1) JP2792692B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011196551A (en) * 2011-06-06 2011-10-06 Yamaha Fine Technologies Co Ltd Coupler
JP2012077788A (en) * 2010-09-30 2012-04-19 Kurimoto Ltd Earthquake-resistant joint structure and lock ring used for the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100593285B1 (en) * 2004-08-16 2006-06-26 김석윤 Pipe fixing system
JP2006125573A (en) * 2004-10-29 2006-05-18 Yamaha Fine Technologies Co Ltd Coupler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123082A (en) * 1979-03-14 1980-09-22 Kubota Ltd Earthquakeeproof pipe joint
JPS5623785U (en) * 1979-07-30 1981-03-03

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077788A (en) * 2010-09-30 2012-04-19 Kurimoto Ltd Earthquake-resistant joint structure and lock ring used for the same
JP2011196551A (en) * 2011-06-06 2011-10-06 Yamaha Fine Technologies Co Ltd Coupler

Also Published As

Publication number Publication date
JPH03177688A (en) 1991-08-01

Similar Documents

Publication Publication Date Title
US6154927A (en) Hinge
JP3071498B2 (en) Piping connector
JP2792692B2 (en) Pipe fittings
JP2008163976A (en) Connector
JP3359510B2 (en) Seismic structure of pipe joints
JPH05231571A (en) Tube joint
JP4433340B2 (en) Retaining member
JPH0544632Y2 (en)
JP4216672B2 (en) Stop ring and fluid equipment with stop ring
JPH02253079A (en) Falling preventing tool for tube fitting
JP2730753B2 (en) Pipe fittings
JP2561694B2 (en) Pipe fitting
JPH0429693A (en) Fall off stopper tool for pipe joint
JPH0384293A (en) Antislip tool for pipe coupling
JP2571432Y2 (en) Captive fittings
JPH03177687A (en) Tube fitting
JP2547237B2 (en) Pipe fitting
JPH1089559A (en) Pipe joint
JPH09159080A (en) Separation prevention pipe joint
JP2001254879A (en) Insertion type resin pipe joint
JP2012077788A (en) Earthquake-resistant joint structure and lock ring used for the same
JP2590188Y2 (en) Bayonet fitting
JPH088384Y2 (en) Detachment prevention fitting
JP3154896B2 (en) Captive fittings
JP2022067260A (en) Piping connector

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees