JP2009079755A - Corrugated pipe joint - Google Patents

Corrugated pipe joint Download PDF

Info

Publication number
JP2009079755A
JP2009079755A JP2007317823A JP2007317823A JP2009079755A JP 2009079755 A JP2009079755 A JP 2009079755A JP 2007317823 A JP2007317823 A JP 2007317823A JP 2007317823 A JP2007317823 A JP 2007317823A JP 2009079755 A JP2009079755 A JP 2009079755A
Authority
JP
Japan
Prior art keywords
joint
corrugate
elastic member
hole
push nut
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.)
Granted
Application number
JP2007317823A
Other languages
Japanese (ja)
Other versions
JP5046113B2 (en
Inventor
Fumikazu Ishibe
文和 石部
Takaaki Itani
崇明 猪谷
Satoru Araki
悟 荒木
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP2007317823A priority Critical patent/JP5046113B2/en
Priority to CN2008102125468A priority patent/CN101382220B/en
Publication of JP2009079755A publication Critical patent/JP2009079755A/en
Application granted granted Critical
Publication of JP5046113B2 publication Critical patent/JP5046113B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corrugated pipe joint into which a corrugated pipe is surely inserted up to a predetermined position. <P>SOLUTION: The corrugated pipe joint 1 comprises a joint body 10 having a through-hole 16 into which the corrugated pipe T is inserted, a push nut 20 inserted into the through-hole 16 at one end and slidable toward the corner of the through-hole 16, a ring-shaped come-off prevention member 50 having a plurality of divided portions 53 formed at one end, a constraining member 30 having protruded portions 31 formed to be fitted to the divided portions 53, a seal member 40 for sealing the outer peripheral face of the corrugated pipe T, an elastic member 70 held in a compressed state, and a movable member 80 to be thrust against the front end of the corrugated pipe T and slidable toward the corner of the through-hole 16. When the movable member 80 thrust against the corrugated pipe T slides toward the corner of the through-hole 16, the compressed state of the elastic member 70 is released to make the protruded portions 31 disengaged from the divided portions 53. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ガス供給配管等に用いられるコルゲイト管を接続するコルゲイト管用継手に関し、特に長期に亘るシール性能及び施工性の改良に関する。   The present invention relates to a joint for a corrugate pipe that connects a corgate pipe used for a gas supply pipe or the like, and more particularly to improvement of sealing performance and workability over a long period of time.

一般に都市ガス等のガス供給配管には、その施工性などの観点から蛇腹状の金属コルゲイト管からなるフレキシブル管と、これを接続するコルゲイト管用継手が広く用いられている。コルゲイト管用継手として、例えば特許文献１には、コルゲイト管の端部が挿入される内孔、及び他の配管との接続部を有する本体と、コルゲイト管外面の環状凹部に差し込まれる爪によってコルゲイト管を係止するリテーナと、コルゲイト管と本体との間をシールするシール手段と、本体に対してスライド可能に係合するとともに、特定のスライド位置において、コルゲイト管を本体に係止した状態でリテーナをロックするリテーナ押えと、を具備したコルゲイト管用継手が記載されている。   In general, a flexible pipe made of a bellows-like metal corrugate pipe and a joint for a corgate pipe connecting the same are widely used for gas supply pipes for city gas and the like from the viewpoint of workability and the like. As a joint for a corgate pipe, for example, Patent Document 1 discloses a corgate pipe by a main body having an inner hole into which an end of the corgate pipe is inserted and a connection portion with another pipe, and a claw inserted into an annular recess on the outer surface of the corgate pipe. , A retainer that seals between the corrugate tube and the main body, and a slidably engaged with the main body, and the retainer in a state where the corgate pipe is locked to the main body at a specific sliding position. There is described a joint for a corrugate pipe provided with a retainer presser for locking.

また、特許文献２には、コルゲイト管を継手本体内に挿入し、環状凸部がストッパの各ピンに当たると、各ピンが奥側に倒れるように弾性変形し、環状凸部がストッパ内側を乗り越えると、ストッパのピン及び各分割円周片が元の状態に復帰することが記載され、この作用によって、コルゲイト管を挿入している作業者には音及び／又は感触によって通過感が得られるというコルゲイト管用継手が開示されている。   Further, in Patent Document 2, when a corrugate tube is inserted into the joint body and the annular convex portion hits each pin of the stopper, each pin is elastically deformed so that it falls down, and the annular convex portion gets over the stopper inside. It is described that the stopper pin and each divided circumferential piece return to the original state, and by this action, an operator who has inserted the corrugate tube can obtain a feeling of passage by sound and / or touch. A joint for a corrugate pipe is disclosed.

また、特許文献３には、パッキン収納部を有する本体と、このパッキン収納部にフレキシブル管（コルゲイト管）の先端が当たることによって奥側に移動するパッキンを装着し、受け口部に向かって縮径するテーパ内周面を有し本体にねじ込んだナットと、
パッキンと一体的になっており、先端に複数の係止爪を有する略筒状のスリーブと、奥側への移動を阻止されると共に切り割りを拡げた状態でスリーブの一端外周に装着されたリテーナと、受け口側に向かって縮径するテーパ外周面を有し、スリーブの係止爪の間にそれぞれ装着された止め輪部材と、リテーナと止め輪の間に圧縮状態で装着された圧縮ばねとからなるフレキシブル管用継手が記載されている。 Further, in Patent Document 3, a main body having a packing storage portion and a packing that moves to the back side when the tip of a flexible pipe (corgate tube) hits the packing storage portion is attached, and the diameter is reduced toward the receiving portion. A nut having a tapered inner peripheral surface and screwed into the body,
A substantially cylindrical sleeve that is integrated with the packing and has a plurality of locking claws at its tip, and a retainer that is attached to the outer periphery of one end of the sleeve while being prevented from moving to the rear side and being cut apart A retaining ring member that has a tapered outer peripheral surface that is reduced in diameter toward the receiving port side, and is mounted between the retaining claws of the sleeve, and a compression spring that is mounted in a compressed state between the retainer and the retaining ring. A flexible pipe joint is described.

特開２００４−３１６７３３号公報JP 2004-316733 A 特開２００７−１１３５９１号公報JP 2007-113591 A 特開平７−１１００８７号公報Japanese Patent Laid-Open No. 7-110087

しかしながら、特許文献１及び特許文献２に記載のコルゲイト管用継手は、筒状の継手の内面とコルゲイト管の先端部外周との隙間をリング状シール材でシールしているので、コルゲイト管先端部の真円度がシール性能に直接影響を与えてしまう。即ち、コルゲイト管先端部が例えば楕円状に扁平していると、短径部ではシール面圧低下により短期間にシール性能が低下し、また長径部においてはシール面圧が必要以上に上昇するために長期に至ってはシール材が永久歪を起こしてしまい、シール材の弾性力の劣化からシール性能を低下させる懸念がある。そこで、施工現場においてコルゲイト管の扁平量を管理する必要性を生じさせている。
また、扁平管に対応するためにもリング状シール材の内径はコルゲイト管の外径よりも小さく設けざるを得ず、高い挿入力を必要とする。しかも作業者にはリング状シール材の内周をコルゲイト管が通過する手応えと、ストッパの作用による手応えとを判別することが困難であった。したがって、コルゲイト管が継手の所定の位置にまで挿入されていないにも関わらず、施工が完了したと勘違いして施工を終了してしまい、漏れ等の不具合につながる虞があった。 However, in the joints for corrugate pipes described in Patent Document 1 and Patent Document 2, the gap between the inner surface of the cylindrical joint and the outer periphery of the tip of the corrugate pipe is sealed with a ring-shaped sealing material. Roundness directly affects seal performance. That is, if the tip of the corrugate tube is flattened, for example, in the elliptical shape, the seal performance decreases in a short time due to a decrease in seal surface pressure in the short diameter portion, and the seal surface pressure increases more than necessary in the long diameter portion. In the long term, however, the sealing material is permanently set, and there is a concern that the sealing performance may be lowered due to the deterioration of the elastic force of the sealing material. Therefore, it is necessary to manage the flatness of the corrugate pipe at the construction site.
Also, in order to cope with the flat tube, the inner diameter of the ring-shaped sealing material must be set smaller than the outer diameter of the corrugate tube, and a high insertion force is required. In addition, it is difficult for the operator to distinguish between the response that the corrugate pipe passes through the inner periphery of the ring-shaped sealing material and the response that is caused by the action of the stopper. Therefore, although the corrugate pipe has not been inserted to the predetermined position of the joint, it is misunderstood that the construction is completed and the construction is terminated, which may lead to problems such as leakage.

また、特許文献３に記載のフレキシブル管用継手によれば、フレキシブル管の先端がパッキンの奥端に当接する前にフレキシブル管の外周面によってパッキンが拡径方向に圧縮されることとなるために、作業者の管挿入力ではパッキンが継手本体の奥側へ移動しづらい場合や、或いはフレキシブル管の先端がパッキンの奥端に到達する前にパッキンが移動してしまう場合があり、フレキシブル管の接続の信頼性を損なう面があった。   Moreover, according to the joint for flexible pipes of patent documents 3, since the packing will be compressed by the outer peripheral surface of a flexible pipe in the diameter expansion direction before the tip of a flexible pipe contacts the back end of packing, If the operator's tube insertion force makes it difficult for the packing to move to the back side of the fitting body, or the packing may move before the tip of the flexible tube reaches the back end of the packing, the connection of the flexible tube There was a face that impaired the reliability.

本発明は、以上のような問題点に着目し、これを有効に解決すべく創案されたものである。即ち、コルゲイト管に多少の扁平や変形があったとしてもシール性能を長期に亘って維持できるコルゲイト管用継手を提供する。また、コルゲイト管が所定の位置にまで挿入されることを確実にして、これを作業者が認知できるようにしたコルゲイト管用継手を提供することを目的としている。   The present invention has been devised to pay attention to the above problems and to effectively solve them. That is, the present invention provides a joint for a corgate pipe that can maintain the sealing performance for a long time even if the corgate pipe has some flatness or deformation. It is another object of the present invention to provide a joint for a corrugate pipe that ensures that the corgate pipe is inserted to a predetermined position so that an operator can recognize it.

本発明は、コルゲイト管が挿入される通孔を有する継手本体と、前記通孔にその一端が挿入され、この通孔の軸方向にスライド可能な押ナットと、前記押ナットにより一端が押され、他端には複数の分割部が形成されて、その先端に前記コルゲイト管の谷部に係合する拡縮可能な爪部が形成されたリテーナと、前記押ナットのスライドを規制するスライド規制手段を有し、前記通孔内に係止された拘束部材と、前記コルゲイト管の外周面をシールするシール部材と、前記通孔の軸方向に伸縮自在な弾性部材と、前記弾性部材を圧縮状態で保持する保持部材及び可動部材とを有し、挿入された前記コルゲイト管の先端が前記可動部材を奥方向に押すことによって前記弾性部材の圧縮状態が開放され、前記弾性部材の伸長にともなって、前記シール部材が軸方向に圧縮され、かつ前記拘束部材のスライド規制手段が解除されて、前記押ナットのスライドが可能となるコルゲイト管用継手である。
かかる構成によれば、コルゲイト管の先端が可動部材に到達するまでは障害物はほとんど無いので挿入力は軽く、可動部材を押している間は若干重くなるものの弾性部材の圧縮状態が開放されると共に軽くなり同時に弾性部材の反発力を手応えと音で確認できる。このとき弾性部材が伸長するのでシール部材を軸方向に押して径方向に圧縮させることができる。これにより扁平管などであっても外周面にさらに圧力が付与され良好なシール性が得られる。同時に拘束部材がシール部材を介して軸方向手前側に押されることによってスライド規制が解除され、押ナットの押込みが可能となり作業者はコルゲイト管が所定位置まで正常に挿入されていることを認識することが出来る。 The present invention includes a joint body having a through hole into which a corrugate pipe is inserted, one end of the joint body inserted into the through hole, an end slidable in the axial direction of the through hole, and one end pushed by the push nut. A retainer in which a plurality of divided portions are formed at the other end and an expandable / contractible claw portion that engages with a valley portion of the corrugate tube is formed at a tip thereof; and a slide restricting means that restricts sliding of the push nut. A constraining member locked in the through-hole, a seal member that seals the outer peripheral surface of the corrugate tube, an elastic member that can expand and contract in the axial direction of the through-hole, and the elastic member in a compressed state The elastic member is released from the compressed state by the distal end of the inserted corrugate tube pushing the movable member in the back direction, and the elastic member is expanded. The sea Member is compressed in the axial direction, and the is slide restriction means of the restraining member is is released, a Korugeito pipe joint slide allows the push nut.
According to such a configuration, there is almost no obstacle until the tip of the corrugate tube reaches the movable member, so that the insertion force is light, and while the movable member is pressed, the elastic member is released in a compressed state while being slightly heavier. It becomes lighter and at the same time, the repulsive force of the elastic member can be confirmed with sound and sound. At this time, since the elastic member extends, the seal member can be pushed in the axial direction and compressed in the radial direction. Thereby, even if it is a flat tube etc., a pressure is further given to an outer peripheral surface and favorable sealing performance is obtained. At the same time, when the restraining member is pushed forward in the axial direction via the seal member, the slide restriction is released, the push nut can be pushed in, and the operator recognizes that the corgate pipe has been normally inserted to the predetermined position. I can do it.

上記のコルゲイト管用継手において、前記スライド規制手段としては、前記リテーナの分割部に前記拘束部材に形成された突出部を嵌合することによって、前記リテーナの爪部を拡径状態に保持し、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記拘束部材の突出部が前記リテーナの分割部から離脱することによってスライド規制が解除されるようにすることができる。
かかる構成によれば、当初はリテーナの爪部を拡径状態に保持できているのでコルゲイト管が挿入し易く、コルゲイト管が所定の位置まで挿入されると上述したように弾性部材が伸長し、拘束部材が押されて突出部が係止部を支点として拡径側に変位して分割部から離脱する。これによってリテーナの爪部が縮径可能となりスライド規制が解除される。分割部と突出部の組み合わせは、予めリテーナと拘束部材の組み付けがし易く、同時にリテーナを拡径状態に保持できる点で好ましい。 In the above-described corgate pipe joint, as the slide restricting means, by fitting a protruding portion formed on the restraining member into the divided portion of the retainer, the claw portion of the retainer is held in an expanded state, When the compressed state of the elastic member is released, the slide restriction can be released by the protrusion of the restraining member being detached from the split portion of the retainer as the elastic member is extended.
According to such a configuration, since the retainer's claw portion can be initially held in an expanded state, the corrugate tube is easy to insert, and when the corgate tube is inserted to a predetermined position, the elastic member extends as described above, When the restraining member is pushed, the projecting portion is displaced to the enlarged diameter side with the locking portion as a fulcrum, and is detached from the divided portion. As a result, the diameter of the claw portion of the retainer can be reduced, and the slide restriction is released. The combination of the divided portion and the protruding portion is preferable in that it is easy to assemble the retainer and the restraining member in advance, and at the same time, the retainer can be held in an expanded state.

また、本発明のコルゲイト管用継手は、通孔内に係止された拘束部材よりも奥側に前記シール部材と、前記弾性部材と、前記保持部材及び可動部材とが配置され、手前側に前記リテーナと前記押ナットとが配置されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長は前記拘束部材で受け止められて、前記リテーナと前記押ナットには前記弾性部材の付勢力が掛からないようにしている。
かかる構成によれば、押ナットの押込み力が小さくなり作業性が良好であるという効果が得られる。 Further, in the joint for a corrugate pipe of the present invention, the seal member, the elastic member, the holding member, and the movable member are disposed on the back side of the restraining member locked in the through hole, and the front side is the When the retainer and the push nut are arranged, and the compressed state of the elastic member is released, the extension of the elastic member is received by the restraining member, and the retainer and the push nut are attached to the elastic member. The urging force is not applied.
According to such a configuration, it is possible to obtain an effect that the pushing force of the push nut is reduced and the workability is good.

また、本発明のコルゲイト管用継手において、前記拘束部材の他端は複数のセグメント部が形成されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記セグメント部が前記コルゲイト管の谷部に係合するようにしている。
かかる構成によれば、コルゲイト管挿入後、一旦管を引くとセグメント部と谷部の係合により引抜が阻止される。これによっても管が所定位置まで挿入されたことを知ることが出来る。また、その後の押ナットのスライドにともなってリテーナの爪部がコルゲイト管の谷部に係合しやすいように位置決めが容易となり、押ナットのスライド後には、拘束部材とリテーナとの二重の引き抜き阻止効果が得られる。 Further, in the joint for a corrugate pipe according to the present invention, the other end of the restraining member is formed with a plurality of segment portions, and when the elastic member is released from the compressed state, as the elastic member expands, the segment The portion engages with the valley portion of the corrugate tube.
According to such a configuration, once the tube is pulled after the corrugate tube is inserted, the pulling is prevented by the engagement between the segment portion and the valley portion. This also makes it possible to know that the tube has been inserted to a predetermined position. In addition, it becomes easy to position the retainer so that the claw of the retainer easily engages the valley of the corrugate tube with the subsequent slide of the push nut, and after the push nut slides, the pulling of the restraining member and the retainer is doubled. A blocking effect is obtained.

また、本発明は、コルゲイト管が挿入される通孔を有する継手本体と、前記通孔にその一端が挿入され、この通孔の軸方向にスライド可能な押ナットと、一端に前記押ナットのスライドを規制するスライド規制手段を有し、他端に前記コルゲイト管の谷部に係合する拡縮可能な爪部が形成された抜止め部材と、前記コルゲイト管の外周面をシールするシール部材と、軸方向に伸縮自在な弾性部材と、前記弾性部材を圧縮状態で保持する保持部材及び可動部材とを有し、挿入された前記コルゲイト管の先端が前記可動部材を奥方向に押すことによって前記弾性部材の圧縮状態が開放され、前記弾性部材の伸長にともなって、前記シール部材が軸方向に圧縮され、かつ前記抜止め部材のスライド規制手段が解除されて、前記押ナットのスライドが可能となるコルゲイト管用継手である。
かかる構成によれば、上記したコルゲイト管用継手よりも部品点数が少なく、同様にコルゲイト管が所定位置まで正常に挿入されていることを確実にすることができる。 Further, the present invention provides a joint body having a through hole into which a corrugate pipe is inserted, a push nut whose one end is inserted into the through hole and slidable in the axial direction of the through hole, and the push nut at one end. A retaining member having a slide restricting means for restricting the slide and having a claw portion which can be expanded and contracted engaged with the valley portion of the corrugate tube at the other end; and a seal member for sealing the outer peripheral surface of the corgate tube; The elastic member elastically stretchable in the axial direction, and a holding member and a movable member for holding the elastic member in a compressed state, and the tip of the inserted corrugate tube pushes the movable member in the back direction. The compression state of the elastic member is released, and with the extension of the elastic member, the seal member is compressed in the axial direction, the slide restricting means of the retaining member is released, and the slide of the push nut is A Korugeito pipe joint becomes ability.
According to this configuration, the number of parts is smaller than that of the above-described joint for corrugate pipe, and similarly, it can be ensured that the corgate pipe is normally inserted to a predetermined position.

上記のコルゲイト管用継手において、前記抜止め部材は、一端にスライド規制突起が形成され、外周の一部を通孔に係止すると共に、前記抜止め部材の爪部を拡径状態に保持し、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記抜止め部材のスライド規制突起が前記押ナット先端より外径側に変位してスライド規制が解除されるようにすることができる。
かかる構成によれば、当初は抜止め部材の爪部を拡径状態に保持できているのでコルゲイト管が挿入し易く、コルゲイト管が所定の位置まで挿入されると弾性部材が伸長し、抜止め部材の爪部が押されてコルゲイト管の谷部に係合すると共に、スライド規制突起が係止部を支点として押ナット先端より拡径側に変位してスライド規制が解除される。その後、押ナットが押込まれることによって押ナット先端部がスライド規制突起の内径側に位置し、抜止め部材の爪部とコルゲイト管の谷部の係合が保持される。スライド規制突起が外形側に回避する構造は、部品点数が少なく、継手長さを小さくできる点で好ましい。 In the above-described joint for corrugate pipes, the retaining member has a slide restricting projection formed at one end, and a part of the outer periphery is locked to the through-hole, and the claw portion of the retaining member is held in an expanded state, When the compression state of the elastic member is released, as the elastic member is extended, the slide restricting protrusion of the retaining member is displaced to the outer diameter side from the tip of the push nut so that the slide restriction is released. can do.
According to such a configuration, since the claw portion of the retaining member can be initially held in an expanded state, the corrugate tube can be easily inserted, and when the corgate tube is inserted to a predetermined position, the elastic member expands and retains. The claw portion of the member is pushed and engaged with the valley portion of the corrugate tube, and the slide restricting projection is displaced from the tip end of the push nut toward the diameter increasing side with the locking portion as a fulcrum to release the slide restriction. Thereafter, when the push nut is pushed in, the tip end portion of the push nut is positioned on the inner diameter side of the slide restricting projection, and the engagement between the claw portion of the retaining member and the valley portion of the corrugate tube is maintained. The structure in which the slide restricting projection is avoided on the outer side is preferable in that the number of parts is small and the joint length can be reduced.

また、本発明のコルゲイト管用継手は、通孔内に係止された前記抜止め部材よりも奥側に前記シール部材と、前記弾性部材と、前記保持部材及び可動部材とが配置され、手前側に前記押ナットが配置されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長は前記抜止め部材で受け止められて、前記押ナットには前記弾性部材の付勢力が掛からないようにしている。
かかる構成によれば、押ナットの押込み力が小さくなり作業性が良好であるという効果が得られる。 Further, in the joint for corrugate pipe according to the present invention, the seal member, the elastic member, the holding member, and the movable member are arranged on the back side of the retaining member locked in the through hole, and the front side When the compression member is released from the compressed state, the elastic member is stretched by the retaining member, and the pushing member is not subjected to the urging force of the elastic member. I am trying not to.
According to such a configuration, it is possible to obtain an effect that the pushing force of the push nut is reduced and the workability is good.

本発明のコルゲイト管用継手において、前記抜止め部材の他端は複数のセグメント部が形成されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記セグメント部が前記コルゲイト管の谷部に係合するようにしている。
かかる構成によれば、コルゲイト管挿入後、一旦管を引くとセグメント部と谷部の係合により引抜が阻止されるので、これによっても管が所定位置まで挿入されたことを知ることが出来る。 In the joint for a corrugate pipe according to the present invention, the other end of the retaining member is formed with a plurality of segment portions, and when the elastic member is released, the segment portion is expanded along with the expansion of the elastic member. Is engaged with the valley of the corrugate tube.
According to such a configuration, after the corrugate tube is inserted, once the tube is pulled, the extraction is prevented by the engagement between the segment portion and the valley portion, so that it is possible to know that the tube has been inserted to a predetermined position.

また、本発明のコルゲイト管用継手において、前記抜止め部材の外周の一部は、この通孔に挿入された入子部材によって係止されており、前記入子部材の内周面に設けた凹溝と、前記押ナットの外周面に設けた凹溝とをストップリングを介して接続することが望ましい。
かかる構成によれば、抜止め部材の外周の一部を通孔内に係止する手間が省け、奥側に位置する構成部品から順じ通孔内に挿入して組立てることができるので自動組立ても可能となり製造が容易となる。 Further, in the joint for a corrugate pipe according to the present invention, a part of the outer periphery of the retaining member is locked by a telescopic member inserted into the through hole, and a recess provided on the inner peripheral surface of the telescopic member. It is desirable to connect the groove and the concave groove provided on the outer peripheral surface of the push nut via a stop ring.
According to such a configuration, it is possible to eliminate the trouble of locking a part of the outer periphery of the retaining member in the hole, and it is possible to insert and assemble from the components located on the back side in order into the through hole, so that automatic assembly is possible. It becomes possible and manufacture becomes easy.

上記した本発明のコルゲイト管用継手において、前記弾性部材と、前記保持部材及び可動部材は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパと、前記保持部材の内周面を支持する可動部材とによって前記弾性部材が圧縮状態に保持されており、予め組立てられたユニット部品であることが望ましい。
かかる構成によれば、ユニット部品として別工程で組立てることができるので、自動組立ても可能となり、全体的な製造工程が短縮され効率的な製造が出来る。 In the above-described joint for a corrugate pipe according to the present invention, the elastic member, the holding member, and the movable member are latched to the retaining member and the retaining member having a substantially L-shaped cross section and formed with a retaining projection at one end. It is desirable that the elastic member is held in a compressed state by the ring-shaped stopper and the movable member that supports the inner peripheral surface of the holding member, and is a unit part that is assembled in advance.
According to such a configuration, since it can be assembled as a unit part in a separate process, automatic assembly is also possible, and the overall manufacturing process can be shortened and efficient manufacturing can be performed.

あるいは、上記した本発明のコルゲイト管用継手において、前記保持部材及び可動部材は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記保持部材の内周面を支持する可動部材であって、前記係止凸部が前記継手本体の内周面に係止することによって前記弾性部材が圧縮状態に保持されているように構成することができる。
かかる構成によれば、リング状のストッパが不要であるので、部品点数を減少させることができる。 Alternatively, in the above-described joint for a corrugate pipe of the present invention, the holding member and the movable member are movable so as to support a holding member having a substantially L-shaped cross section and a locking projection formed at one end, and an inner peripheral surface of the holding member. It is a member, Comprising: When the said latching convex part latches to the internal peripheral surface of the said joint main body, it can comprise so that the said elastic member may be hold | maintained in a compression state.
According to such a configuration, since a ring-shaped stopper is unnecessary, the number of parts can be reduced.

あるいは、請求項１乃至９の何れかに記載のコルゲイト管用継手において、前記弾性部材を圧縮状態で保持する保持部材と可動部材の構成を、断面略コの字状で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパとからなり、前記係止凸部の外周面が前記継手本体の内周面に嵌挿されることによって前記弾性部材が圧縮状態に保持されている構成に代えることができる。
かかる構成によれば、可動部材が不要であるので、部品点数を減少させることができる。また、コルゲイト管を接続した後の可動部材がガスの流動を阻害することを防止できるという効果が得られる。 Alternatively, in the joint for a corrugate pipe according to any one of claims 1 to 9, the configuration of the holding member and the movable member for holding the elastic member in a compressed state is a substantially U-shaped cross section, and a locking projection is formed at one end. The elastic member is formed by a holding member formed and a ring-shaped stopper locked to the locking projection, and an outer peripheral surface of the locking projection is fitted into an inner peripheral surface of the joint body. Can be replaced with a configuration in which is held in a compressed state.
According to this configuration, since the movable member is unnecessary, the number of parts can be reduced. Moreover, the effect that the movable member after connecting a corrugate pipe | tube can prevent inhibiting the flow of gas is acquired.

また、本発明は、コルゲイト管が挿入される通孔を有する継手本体と、前記通孔にその一端が挿入され、この通孔の軸方向にスライド可能な押ナットと、コルゲイト管の谷部に係合する拡縮可能な爪部が形成された管連結部材と、前記押ナットのスライドを規制するスライド規制手段と、前記コルゲイト管の外周面をシールするシール部材と、前記通孔の軸方向に伸縮自在な弾性部材と、前記弾性部材を圧縮状態で保持する保持手段とを有し、前記コルゲイト管の挿入によって、前記保持手段は前記弾性部材の圧縮状態を開放し、前記弾性部材の伸長にともなって、前記シール部材が軸方向に圧縮され、かつ前記スライド規制手段が解除されて、前記押ナットのスライドが可能となるコルゲイト管用継手である。
管連結部材はコルゲイト管と継手本体を連結して管の抜け止め作用が出来るものであれば良い。例えば上述するリテーナとか抜止め部材のように構成することができる。また、スライド規制手段は独立した部材で構成することも出来るし、あるいは前記管連結部材の他の機能として一体的に組み込んでまとめた構成とすることも出来る。
かかる構成によれば、コルゲイト管の挿入によって弾性部材の圧縮状態が開放されると共に弾性部材の反発力を手応えと音で確認できる。このとき弾性部材が伸長するのでシール部材を軸方向に押して径方向に圧縮させることができる。これにより扁平管などであっても外周面にさらに圧力が付与され良好なシール性が得られる。同時にスライド規制手段がシール部材を介して軸方向手前側に押されることによってスライド規制が解除され、押ナットの押込みが可能となり作業者はコルゲイト管が所定位置まで正常に挿入されていることを認識することが出来る。 Further, the present invention provides a joint main body having a through hole into which a corrugate pipe is inserted, a push nut having one end inserted into the through hole and slidable in the axial direction of the through hole, and a trough portion of the corgate pipe. A pipe connecting member formed with an engaging and contracting claw, a slide regulating means for regulating sliding of the push nut, a seal member for sealing an outer peripheral surface of the corrugate pipe, and an axial direction of the through hole A retractable elastic member; and a holding means for holding the elastic member in a compressed state. By inserting the corrugate tube, the holding means releases the compressed state of the elastic member to extend the elastic member. At the same time, the seal member is compressed in the axial direction, and the slide restricting means is released, whereby the push nut can be slid.
The pipe connecting member may be any member that can connect the corrugate pipe and the joint body to prevent the pipe from coming off. For example, it can be configured like the retainer or the retaining member described above. Further, the slide restricting means can be constituted by an independent member, or can be constituted by integrating and integrating as another function of the pipe connecting member.
According to such a configuration, the compression state of the elastic member is released by the insertion of the corrugate tube, and the repulsive force of the elastic member can be confirmed with response and sound. At this time, since the elastic member extends, the seal member can be pushed in the axial direction and compressed in the radial direction. Thereby, even if it is a flat tube etc., a pressure is further given to an outer peripheral surface and favorable sealing performance is obtained. At the same time, when the slide restricting means is pushed axially forward through the seal member, the slide restriction is released, the push nut can be pushed in, and the operator recognizes that the corgate pipe has been normally inserted to the predetermined position. I can do it.

上記した本発明のコルゲイト管用継手において、前記保持手段は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパと、前記保持部材の内周面を支持する可動部材とによって前記弾性部材が圧縮状態に保持されており、予め組立てられたユニット部品であることが望ましい。
かかる構成によれば、ユニット部品として別工程で組立てることができるので、自動組立ても可能となり、全体的な製造工程が短縮され効率的な製造が出来る。 In the above-described joint for corrugate pipe of the present invention, the holding means includes a holding member having a substantially L-shaped cross section and a locking projection formed at one end, a ring-shaped stopper locked to the locking projection, It is desirable that the elastic member is held in a compressed state by a movable member that supports the inner peripheral surface of the holding member, and is a unit component assembled in advance.
According to such a configuration, since it can be assembled as a unit part in a separate process, automatic assembly is also possible, and the overall manufacturing process can be shortened and efficient manufacturing can be performed.

あるいは、上記した本発明のコルゲイト管用継手において、前記保持手段は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記保持部材の内周面を支持する可動部材であって、前記係止凸部が前記継手本体の内周面に係止することによって前記弾性部材が圧縮状態に保持されているように構成することができる。
かかる構成によれば、リング状のストッパが不要であるので、部品点数を減少させることができる。 Alternatively, in the above-described joint for a corrugate pipe according to the present invention, the holding means is a holding member having a substantially L-shaped cross section and a locking projection formed at one end, and a movable member that supports the inner peripheral surface of the holding member. Thus, the elastic projection can be configured to be held in a compressed state by the locking projection being locked to the inner peripheral surface of the joint body.
According to such a configuration, since a ring-shaped stopper is unnecessary, the number of parts can be reduced.

あるいは、上記した本発明のコルゲイト管用継手において、前記保持手段は、断面略コの字状で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパとからなり、前記係止凸部の外周面が前記継手本体の内周面に嵌挿されることによって前記弾性部材が圧縮状態に保持されている構成とすることが出来る。
かかる構成によれば、可動部材が不要であるので、部品点数を減少させることができる。また、コルゲイト管を接続した後の可動部材がガスの流動を阻害することを防止できるという効果が得られる。 Alternatively, in the above-described joint for a corrugate pipe according to the present invention, the holding means includes a holding member having a substantially U-shaped cross section and a locking projection formed at one end, and a ring shape locked to the locking projection. The elastic member is held in a compressed state by inserting the outer peripheral surface of the locking projection into the inner peripheral surface of the joint body.
According to this configuration, since the movable member is unnecessary, the number of parts can be reduced. Moreover, the effect that the movable member after connecting a corrugate pipe | tube can prevent inhibiting the flow of gas is acquired.

本発明のコルゲイト管用継手によれば、コルゲイト管に扁平や変形があったとしても管挿入後にさらに面圧が付与されるのでシール性能を長期に亘って維持できるコルゲイト管用継手となった。また、コルゲイト管が所定の位置に挿入されていない状態では押ナットのスライド動作を規制しているので、リテーナや抜止め部材が縮径することがなく、もって、コルゲイト管が所定の位置にまで挿入されることを確実にすることができる。そして、コルゲイト管が所定の位置にまで挿入されていない場合には、施工管理者にも施工個所の外観から容易に検査することができる。   According to the joint for corrugate pipe of the present invention, even if the corgate pipe is flat or deformed, a surface pressure is further applied after the pipe is inserted, so that the joint for corrugate pipe can be maintained over a long period of time. Further, since the sliding movement of the push nut is restricted when the corrugate pipe is not inserted into the predetermined position, the retainer and the retaining member are not reduced in diameter, so that the corgate pipe is brought into the predetermined position. It can be ensured that it is inserted. And when a corrugate pipe | tube is not inserted to the predetermined position, a construction manager can also test | inspect easily from the external appearance of a construction part.

［第１の実施の形態］
本発明の第１の実施の形態を図１から図６を用いて説明する。図１は本発明のコルゲイト管用継手の一実施例の半断面図を、図２は本発明のコルゲイト管用継手の一実施例の部品展開斜視図を、図３は本発明におけるリテーナと拘束部材とを嵌合させた状態の斜視図を、図４は本発明における弾性部材の実施例の斜視図を、図５は本発明のコルゲイト管用継手にコルゲイト管を挿入した状態の半断面図を、図６は本発明のコルゲイト管用継手にコルゲイト管を接続施工完了した状態の半断面図を示している。 [First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a half sectional view of an embodiment of a joint for corrugate pipes according to the present invention, FIG. 2 is an exploded perspective view of parts of an embodiment of the joint for corrugate pipes of the present invention, and FIG. FIG. 4 is a perspective view of an embodiment of the elastic member according to the present invention, FIG. 5 is a half sectional view of a state in which the corrugate pipe is inserted into the joint for a corrugate pipe of the present invention, 6 shows a half cross-sectional view of a state where the construction for connecting the corrugate pipe to the joint for corrugate pipe of the present invention is completed.

図１及び図２に示すように、コルゲイト管用継手１は、一端側からコルゲイト管Ｔが挿入される通孔部１６を有する継手本体１０と、一方に大径となしたヘッド部２１と他方に小径とした挿入部２４とを有し、この挿入部２４が継手本体１０の通孔部１６に挿入されるようになした押ナット２０と、押ナット２０の先端に配置されコルゲイト管の谷部に係り合う爪部５２を有するリテーナ５０と、リテーナ５０の複数の爪部５２、５２の間の分割部５３に嵌合する突出部３１が形成された拘束部材３０と、コルゲイト管Ｔの外周面をシールするシール部材４０と、圧縮状態で保持された弾性部材７０と、保持部材７２と、コルゲイト管Ｔの先端に押圧され通孔部１６の奥方向にスライド可能な可動部材８０とを有する。なお、継手本体１０の他端側の外表面には他の配管部材と接続するための雄ネジ部１４と雄ネジ部１４を他の配管部材に螺合するための工具係部１５が形成されている。   As shown in FIGS. 1 and 2, the corrugate pipe joint 1 includes a joint body 10 having a through hole portion 16 into which a corrugate pipe T is inserted from one end side, a head portion 21 having a large diameter on one side, and a head portion 21 on the other side. A push nut 20 having a small-diameter insertion portion 24, the insertion portion 24 being inserted into the through hole portion 16 of the joint body 10, and a trough portion of the corrugate pipe disposed at the tip of the push nut 20. A retainer 50 having a claw portion 52 that engages with each other, a constraining member 30 formed with a protruding portion 31 that fits into a divided portion 53 between the plurality of claw portions 52, 52 of the retainer 50, and an outer peripheral surface of the corgate pipe T A sealing member 40, an elastic member 70 held in a compressed state, a holding member 72, and a movable member 80 that is pressed against the tip of the corrugate tube T and is slidable in the depth direction of the through-hole portion 16. A male threaded portion 14 for connecting to another piping member and a tool engaging portion 15 for screwing the male threaded portion 14 into the other piping member are formed on the outer surface of the joint body 10 at the other end side. ing.

継手本体１０の手前側（図の左方向）の通孔部１６には、通孔部１６の奥方向（図の右方向）に向かって縮径するテーパ面を有した第一係止溝１７が形成され、更に通孔部１６の奥方向には第一係止溝１７の径と同径の係止段部１８ａと、係止段部１８ａに連なり係止段部１８ａよりも大径とした大径段部１８ｂが形成されている。一方、押ナット２０の挿入部２４には係止凹溝２５が形成されている。そして、第一係止溝１７と係止凹溝２５を跨ぐようにストップリング６１が配置されている。ストップリング６１は、弾性を有する金属製のＣ型形状のリングで、継手本体１０の通孔部１６に押ナット２０の挿入部２４を挿入する際に、係止溝２５に縮径させて収納し、第一係止溝１７の位置に来たとき若干拡径し、これにより継手本体１０と押ナット２０とが予め連結されている。   A first locking groove 17 having a tapered surface with a diameter decreasing toward the back direction (right direction in the drawing) of the through hole portion 16 in the through hole portion 16 on the front side (left direction in the drawing) of the joint body 10. Further, in the depth direction of the through-hole portion 16, a locking step portion 18a having the same diameter as the diameter of the first locking groove 17, and a larger diameter than the locking step portion 18a are connected to the locking step portion 18a. The large diameter step portion 18b is formed. On the other hand, a locking groove 25 is formed in the insertion portion 24 of the push nut 20. And the stop ring 61 is arrange | positioned so that the 1st locking groove 17 and the locking groove 25 may be straddled. The stop ring 61 is a metal C-shaped ring having elasticity. When the insertion portion 24 of the push nut 20 is inserted into the through hole portion 16 of the joint body 10, the stop ring 61 is retracted and stored in the locking groove 25. When the first locking groove 17 is reached, the diameter is slightly increased, whereby the joint body 10 and the push nut 20 are connected in advance.

押ナット２０の挿入部２４には、Ｏリング溝２３が形成され、ここに水密Ｏリング４７が装着されている。また、押ナット２０の挿通孔部２２には、水密パッキン４８が備えられている。従って、コルゲイト管用継手の内部に外部からの水分や粉塵等の進入を阻止している。   An O-ring groove 23 is formed in the insertion portion 24 of the push nut 20, and a watertight O-ring 47 is attached thereto. The insertion hole 22 of the push nut 20 is provided with a watertight packing 48. Accordingly, entry of moisture, dust, and the like from the outside is prevented inside the joint for the corrugate pipe.

そして、継手本体１０の一端面と押ナット２０のヘッド部２１との間には、脱離可能なカラーリング６５が配置されている。カラーリング６５の取手部６５ａを引いてカラーリング６５を取外した後、押ナット２０を通孔部１６内にスライドさせて押し込むと、ストップリング６１は第一係止溝１７のテーパ面に沿って縮径し、カラーリング６５の厚さ分だけ押ナット２０をスライド可能となし、係止段部１８ａに到達したときストップリング６１は拡径し、係止段部１８ａと係止凹溝２５を跨ぐように配置するので、この位置にて押ナット２０は継手本体１０から離脱不能に係止される（図５参照）。   A detachable color ring 65 is disposed between one end face of the joint body 10 and the head portion 21 of the push nut 20. After pulling the handle portion 65 a of the color ring 65 and removing the color ring 65, when the slide nut 20 is slid into the hole portion 16 and pushed in, the stop ring 61 extends along the tapered surface of the first locking groove 17. The diameter is reduced, and the push nut 20 can be slid by the thickness of the collar ring 65. When reaching the locking step 18a, the stop ring 61 expands in diameter, and the locking step 18a and the locking groove 25 are formed. Since it arrange | positions so that it may straddle, in this position, the push nut 20 is latched from the coupling main body 10 so that it cannot detach | leave (refer FIG. 5).

尚、施工をし直す必要が生じたときのために、継手本体１０の一端面と押ナット２０のヘッド部２１との間には所定の厚さの分解用リング６３が挟着されており、この分解用リング６３を取外すと、分解用リング６３の厚さ分だけ継手本体１０の通孔部１６に押ナット２０を押し込むことができるようになっている。そして、分解用リング６３を取外し、押ナット２０を通孔部１６の奥側にさらに押し込むと、ストップリング６１は係止段部１８ａの位置から大径段部１８ｂに移動し、ここでストップリング６１が拡径するので、継手本体１０と押ナット２０との連結が開放される。これによって、継手本体１０と押ナット２０とを分解することが可能となっている。   In addition, in the event that it becomes necessary to rework, a disassembling ring 63 having a predetermined thickness is sandwiched between one end surface of the joint body 10 and the head portion 21 of the push nut 20. When the disassembling ring 63 is removed, the push nut 20 can be pushed into the through-hole portion 16 of the joint body 10 by the thickness of the disassembling ring 63. Then, when the disassembling ring 63 is removed and the push nut 20 is further pushed into the back side of the hole portion 16, the stop ring 61 moves from the position of the locking step portion 18a to the large diameter step portion 18b, where the stop ring Since 61 expands in diameter, the connection between the joint body 10 and the push nut 20 is released. As a result, the joint body 10 and the push nut 20 can be disassembled.

また、押ナット２０には、挿入孔部２２から挿入部２４へ貫通する通気穴２６が設けられ、選択透過性部材６０が設けられている。
選択透過性部材６０は、四フッ化エチレン樹脂粉を押し固めたのち、延伸加工して成形した連続多孔質膜を含むシート材からなり、０．１〜５μｍの連続した微細孔を有し、空気や水蒸気のような気体は通すが、水などの液体ははじくという特性を備えているものがあげられる。あるいはポリエチレン、ポリプロピレン、ポリメチルアクリレート、ポリスチレン、エチレン酢酸ビニル共重合体、四フッ化エチレン重合体等の熱可塑性樹脂粉体から成形した連続気孔を有する多孔質体であるとか、またポリビニルアルコールとホルムアルデヒドを酸触媒と共に反応させることで成形した連続気孔を有する多孔質シート材等を用いてもよい。 Further, the push nut 20 is provided with a vent hole 26 penetrating from the insertion hole portion 22 to the insertion portion 24, and a selectively permeable member 60 is provided.
The selectively permeable member 60 is made of a sheet material including a continuous porous film formed by pressing and solidifying the tetrafluoroethylene resin powder, and has continuous fine pores of 0.1 to 5 μm, A gas having a characteristic of allowing a gas such as air or water vapor to pass through but repelling a liquid such as water can be cited. Or it is a porous body having continuous pores formed from a thermoplastic resin powder such as polyethylene, polypropylene, polymethyl acrylate, polystyrene, ethylene vinyl acetate copolymer, tetrafluoroethylene polymer, etc., or polyvinyl alcohol and formaldehyde You may use the porous sheet material etc. which have the continuous pore shape | molded by making this react with an acid catalyst.

これらの選択透過性部材は、空気や水蒸気のような気体を透過する通気性、透湿性を有し、一方で水や薬液等の液体は透過させない防水性を兼ね備えるもので、他に防塵性、耐薬品性、耐熱性、耐候性等にも優れる。従って、外から継手内への固体（塵芥など）及び液体（水や露など）の透過、侵入は阻止して配管施工後長期にわたって外部からの水分や塵芥の侵入を防止し内部が腐食するなどの問題が生じない。 These selectively permeable members have air permeability and moisture permeability that allow gas such as air and water vapor to pass therethrough, while also having waterproof properties that do not allow liquid such as water and chemicals to pass through. Excellent chemical resistance, heat resistance, weather resistance, etc. Therefore, the permeation and penetration of solids (such as dust) and liquids (water, dew, etc.) from the outside into the joint are prevented, and moisture and dust are prevented from entering from the outside for a long time after piping construction, and the interior is corroded. The problem does not occur.

具体的には、コルゲイト管Ｔの外周に被覆した樹脂被覆層Ｔ６の内面には管の長手方向に（図示しない）凹凸が設けられており、コルゲイト管を施工するときに誤って管に釘を打たれると、漏れ出たガスが凹凸に沿って選択透過性部材６０まで導かれ、選択透過性部材６０は、ガス、空気等の気体は透過するので、内封圧力の降下を検出したり、ガス漏れセンサ等を利用することによって、漏れの有無を検知し得るようにしている。   Specifically, the inner surface of the resin coating layer T6 coated on the outer periphery of the corrugate tube T is provided with irregularities (not shown) in the longitudinal direction of the tube. When struck, the leaked gas is guided along the unevenness to the selectively permeable member 60, and the selectively permeable member 60 allows gas such as gas and air to pass through. The presence or absence of leakage can be detected by using a gas leak sensor or the like.

次に、本発明のコルゲイト管用継手の内部構造について説明する。
まず、押ナット２０の挿入部２４の内面側には、先端に向かって拡径するテーパ内面２８が形成され、このテーパ内面２８に対向するように形成されたテーパ外面５４を一端に有し、他端の内径側にコルゲイト管Ｔの谷部Ｔ４に係り合う爪部５２を有するリテーナ５０が配置されている。このリテーナ５０は、継手本体１０の通孔部１６内において、シール部材４０と押ナット２０との間に配置されたリング状の部材である。図２に示すように、テーパ外面５４よりも後部が一体のリング状となっており、他端側の前部は軸方向の分割部５３によって複数のセグメント（一例で８個）にわかれている。各セグメントの先端には半径方向内側に張り出した爪部５２が設けられている。リテーナ５０は、例えば母体がプラスチック製、爪部５２が真ちゅう製であり、両者は一体にモールド成形されている。そして、このリテーナ５０の爪部５２の内径は、無負荷状態ではコルゲイト管Ｔの外形よりも大としている。従って、コルゲイト管Ｔの挿入の段階では、リテーナ５０の爪部５２はコルゲイト管Ｔの山部Ｔ２に係り合うことなくスムースに挿入することができる。 Next, the internal structure of the joint for corrugate pipes of the present invention will be described.
First, on the inner surface side of the insertion portion 24 of the push nut 20, a tapered inner surface 28 that expands toward the tip is formed, and a tapered outer surface 54 formed so as to face the tapered inner surface 28 is provided at one end. A retainer 50 having a claw portion 52 that engages with the valley portion T4 of the corrugate tube T is disposed on the inner diameter side of the other end. The retainer 50 is a ring-shaped member disposed between the seal member 40 and the push nut 20 in the through hole portion 16 of the joint body 10. As shown in FIG. 2, the rear part of the taper outer surface 54 has an integrated ring shape, and the front part on the other end side is divided into a plurality of segments (eight in one example) by an axially divided part 53. . A claw portion 52 projecting radially inward is provided at the tip of each segment. In the retainer 50, for example, the base is made of plastic and the claw portion 52 is made of brass, and both are integrally molded. And the internal diameter of the nail | claw part 52 of this retainer 50 is made larger than the external shape of the corrugate pipe | tube T in an unloaded state. Therefore, at the stage of inserting the corrugate tube T, the claw portion 52 of the retainer 50 can be smoothly inserted without being engaged with the peak portion T2 of the corgate tube T.

拘束部材３０は、上記リテーナ５０とシール部材４０との間に配置されたリング状のプラスチック製の部材である。図２に示すように、一部が分断されたＣ形の本体部３２から、一端側にはリテーナ５０の分割部５３に嵌合する突出部３１が分割部５３と同数（一例で８個）設けられている。また、他端側は端部に向かって縮径するテーパ外面をなした複数のセグメント部３３に分かれて設けられている。そして、図３に示すように、リテーナ５０と拘束部材３０は、分割部５３と突出部３１が嵌合するように予め組み立てられている。したがって、この状態ではリテーナ５０の爪部５２は縮径することが不可能になっている。このように両者を組み付けることによって押ナットのスライドを規制するスライド規制手段を構成している。   The restraining member 30 is a ring-shaped plastic member disposed between the retainer 50 and the seal member 40. As shown in FIG. 2, from the C-shaped main body portion 32 that is partly divided, the same number of protruding portions 31 that fit into the dividing portion 53 of the retainer 50 are provided at one end side (eight in one example). Is provided. Further, the other end side is provided by being divided into a plurality of segment portions 33 having a tapered outer surface whose diameter is reduced toward the end portion. And as shown in FIG. 3, the retainer 50 and the restraint member 30 are assembled beforehand so that the division part 53 and the protrusion part 31 may fit. Therefore, in this state, the claw portion 52 of the retainer 50 cannot be reduced in diameter. In this manner, a slide restricting means for restricting the slide of the push nut is configured by assembling both.

そして、拘束部材３０の本体部３２は、通孔部１６に設けられた凹溝１３に係止されている。また、通孔１６には凹溝１３に隣接してヌスミ部１２が形成されている。拘束部材３０は、本体部３２の外周が凹溝１３に係止されているので、後述する弾性部材の作用により、本体部３２を支点として、セグメント部３３側が縮径してコルゲイト管の谷部に係止し、突出部３１が本体（係止）部３２を支点として拡径側に変位することによってリテーナ５０から離脱する。   The main body 32 of the restraining member 30 is locked in the concave groove 13 provided in the through hole 16. In addition, a stub portion 12 is formed in the through hole 16 adjacent to the concave groove 13. Since the outer periphery of the main body portion 32 is locked in the concave groove 13, the restraining member 30 is reduced in diameter on the segment 33 side with the main body portion 32 as a fulcrum by the action of an elastic member, which will be described later. The protrusion 31 is disengaged from the retainer 50 by displacing to the enlarged diameter side with the main body (locking) portion 32 as a fulcrum.

シール部材４０は、リング状のゴム製弾性部材で、外径側は、継手本体１０の通孔１６の内周面の内径よりも大きく設定し、継手本体１０の通孔部１６に気密に密着するように圧入されるとともに、継手本体１０の通孔部１６の内周面に沿って軸方向に移動可能に配置されている。一方、内径側は、コルゲイト管Ｔの外径よりも若干小さく設けられている。なお、シール部材４０は、特に長期間にわたってシール性能を保持する必要性から、耐ガス性を考慮しニトリルブタジエンゴム（ＮＢＲ）が望ましい。   The seal member 40 is a ring-shaped rubber elastic member, and the outer diameter side is set larger than the inner diameter of the inner peripheral surface of the through hole 16 of the joint main body 10, and tightly adheres to the through hole portion 16 of the joint main body 10. The joint body 10 is press-fitted so as to be movable along the inner peripheral surface of the through-hole portion 16 of the joint body 10 in the axial direction. On the other hand, the inner diameter side is provided slightly smaller than the outer diameter of the corrugate tube T. The seal member 40 is preferably made of nitrile butadiene rubber (NBR) in consideration of gas resistance because it is necessary to maintain the seal performance for a long period of time.

また、本例ではシール部材４０の一端側には、断面Ｌ形の金属ガイド４２が、接着されて一体化され、金属ガイド４２には耐火パッキン４４が備えられている。シール部材４０は常時のシール機能を果たすが、火災等で焼失する場合のことを考えて耐火パッキンを非常用に備えることが望ましい。   In this example, a metal guide 42 having an L-shaped cross section is bonded and integrated on one end side of the seal member 40, and the metal guide 42 is provided with a fireproof packing 44. Although the sealing member 40 performs a normal sealing function, it is desirable to provide a fireproof packing for emergency use in consideration of the case where it is burned out by a fire or the like.

この耐火パッキン４４は、例えば、原料ゴムと無発泡状態で熱膨張する黒鉛層間化合物と必要に応じ充填材、軟化材、加硫剤等を混練して得られたゴム配合物を、金型に充填して成形し、ついでプレス加硫することにより製造される。黒鉛層間化合物は、例えば黒鉛（六員環重合体層が層状に重なり合った炭素の六方晶系結晶体）に硫酸を反応させることにより得られる層間に硫酸銀が結合した化合物であり、１７０度以上に加熱されると無発泡状態で体積が数倍乃至数十倍にも増加し、８００度〜１０００度に加熱すると見掛けの体積は１００乃至２５０倍に増加する。原料ゴムとしては、天然ゴム（ＮＲ）、ニトリルブタジエンゴム（ＮＢＲ）、クロロプレンゴム（ＣＲ）、エチレン−プロピレンゴム（ＥＰＤＭ）、シリコーンゴム（Ｑ）等を用い得る。   This refractory packing 44 is made of, for example, a rubber compound obtained by kneading raw material rubber, a graphite intercalation compound that is thermally expanded in a non-foamed state, and a filler, a softening material, a vulcanizing agent, etc., if necessary. It is manufactured by filling and molding, followed by press vulcanization. The graphite intercalation compound is, for example, a compound in which silver sulfate is bonded between layers obtained by reacting sulfuric acid with graphite (a hexagonal crystal of carbon in which six-membered ring polymer layers are overlapped in layers), and is 170 ° C. or more When heated to 800 ° C to 1000 ° C, the apparent volume increases to 100 to 250 times when heated to 800 ° C to 1000 ° C. As the raw rubber, natural rubber (NR), nitrile butadiene rubber (NBR), chloroprene rubber (CR), ethylene-propylene rubber (EPDM), silicone rubber (Q) and the like can be used.

コルゲイト管用継手１が火災等で高温にさらされた場合、シール部材４０は焼失してしまうが、耐火パッキン４４が熱膨張し、継手本体１０とコルゲイト管Ｔとの空間に充満して、コルゲイト管Ｔの外径をシールすることで、火災時にガス漏れが生じて被害を拡大させることを防止している。特に、金属ガイド４２は、継手本体１０の通孔１６の段部１９に係止される外径寸法をなしており、耐火パッキン４４が膨張する際に金属ガイド４２が段部１９に係止され、通孔１６の奥側（図の右方向）には移動不可能となるので、耐火パッキン４４は通孔１６の入口側（図の金属ガイド４２から左側）にのみ膨張するので、この空間を埋めてシール面圧を確保しやすくなっている。   When the corrugate pipe joint 1 is exposed to a high temperature due to a fire or the like, the seal member 40 is burned out, but the fireproof packing 44 is thermally expanded to fill the space between the joint body 10 and the corrugate pipe T, and the corgate pipe Sealing the outer diameter of T prevents gas leaks from occurring during a fire and increasing damage. In particular, the metal guide 42 has an outer diameter dimension that is locked to the step portion 19 of the through hole 16 of the joint body 10, and the metal guide 42 is locked to the step portion 19 when the fireproof packing 44 expands. Since it cannot move to the back side of the through hole 16 (right direction in the figure), the fireproof packing 44 expands only to the inlet side of the through hole 16 (left side from the metal guide 42 in the figure). It is easy to secure the seal pressure by filling.

保持部材７２は、断面Ｌ形の金属製部材で、一端に縮径可能な係止凸部７３が形成されている。そして、保持部材７２の外周面には弾性部材７０が挿入され、リング状のストッパ７５が係止凸部７３に係止されることによって、弾性部材７０が圧縮状態に保持されている。そして、保持部材７２の内周面には、可動部材８０が挿入されており、可動部材８０の外周面で係止凸部７３が縮径不能に保持されている。可動部材８０は、円筒状の樹脂製部材で、保持部材７２の内周面に摺動可能に嵌合される厚肉部８１とシール部材４０の内部にまで延長され、コルゲイト管の先端が当接する薄肉部８２とからなっている。従って、可動部材が移動して厚肉部８１の押さえが無くなると保持部材７２は縮径側に開いて係止凸部７３とストッパ７５の係止が解除される。   The holding member 72 is a metal member having an L-shaped cross section, and a locking projection 73 that can be reduced in diameter is formed at one end. And the elastic member 70 is inserted in the outer peripheral surface of the holding member 72, and the elastic member 70 is hold | maintained in the compression state by the ring-shaped stopper 75 being latched by the latching convex part 73. FIG. A movable member 80 is inserted into the inner peripheral surface of the holding member 72, and the locking projection 73 is held on the outer peripheral surface of the movable member 80 so that the diameter of the locking member 73 cannot be reduced. The movable member 80 is a cylindrical resin member that extends to the inside of the seal member 40 and the thick portion 81 that is slidably fitted to the inner peripheral surface of the holding member 72, and the tip of the corrugate tube is in contact with the movable member 80. It consists of a thin-walled portion 82 in contact therewith. Accordingly, when the movable member moves and the thick portion 81 is no longer pressed, the holding member 72 is opened to the reduced diameter side, and the locking projection 73 and the stopper 75 are unlocked.

弾性部材７０は、軸方向に伸縮自在な部材で形成され、伸長したときに押圧力が発揮できるものであれば材質や形状は問わないが、押圧力や入手の容易性からコイルスプリング部材を用いるのが望ましい。本例の弾性部材７０はステンレス製コイルスプリングで形成されている。実施例においては断面円状のコイルスプリングを示しているが、図４（ａ）に示す異形断面ばね（角ばね）７０Ａ、図４（ｂ）に示す円すいコイルばね７０Ｂ、図４（ｃ）に示すコイルドウエイブスプリング７０Ｃ、図４（ｄ）に示す波座金７０Ｄ１と平座金７０Ｄ２との組合せばね、図４（ｅ）に示す微小コイルばね７０Ｅを複数個円環状に配置させた形態、図４（ｆ）に示す竹の子ばね７１Ｆを採用することもできる。   The elastic member 70 is formed of a member that can expand and contract in the axial direction, and any material or shape can be used as long as it can exert a pressing force when it is extended. However, a coil spring member is used because of the pressing force and availability. Is desirable. The elastic member 70 of this example is formed of a stainless steel coil spring. In the embodiment, a coil spring having a circular cross section is shown, but a deformed cross section spring (square spring) 70A shown in FIG. 4 (a), a conical coil spring 70B shown in FIG. 4 (b), and FIG. 4 (c). A coiled wave spring 70C shown in FIG. 4, a combination spring of a wave washer 70D1 and a flat washer 70D2 shown in FIG. 4D, and a plurality of micro coil springs 70E shown in FIG. A bamboo spring 71F shown in (f) can also be employed.

この中で、円すいコイルばね７０Ｂ、コイルドウエイブスプリング７０Ｃ、波座金７０Ｄ１と平座金７０Ｄ２との組合せばね、および竹の子ばね７０Ｆは、弾性部材を小型化することにおいて有益で、また、コイルドウエイブスプリング７０Ｃ、および微小コイルばね７０Ｅは円周上に均一な反力を付勢できる点で有益である。   Of these, the conical coil spring 70B, the coiled wave spring 70C, the combined spring of the wave washer 70D1 and the flat washer 70D2, and the bamboo child spring 70F are beneficial in reducing the size of the elastic member, and the coiled wave spring 70C and the small coil spring 70E are advantageous in that a uniform reaction force can be applied to the circumference.

特に、コイルドウエイブスプリング７０Ｃは、その形状によってばね定数を選択することが容易で、一般のコイルスプリングに比べて全長を短くすることができ、また、円周上に均一な反力を付勢できるので、結果的にコルゲイト管継手をコンパクトにできるとともに、シール部材４０を均一に圧縮できるために好適である。   In particular, the coiled wave spring 70C can easily select a spring constant depending on its shape, and can be shortened in total length as compared with a general coil spring, and can urge a uniform reaction force on the circumference. As a result, the corrugate pipe joint can be made compact as a result, and the seal member 40 can be compressed uniformly.

続いて、コルゲイト管用継手１にコルゲイト管Ｔを接続する手順とその作用について図５及び図６を用いて詳細に説明する。   Next, a procedure for connecting the corrugate pipe T to the corrugate pipe joint 1 and its operation will be described in detail with reference to FIGS. 5 and 6.

図５に示すように、コルゲイト管用継手１にコルゲイト管Ｔを挿入すると、リテーナ５０は拡径状態で保持され、その内径がコルゲイト管Ｔの外径よりも大としているので、金属ガイド４２まではコルゲイト管Ｔをスムースに挿入することができる。そして、シール部材４０の内周面で若干の手応えを感じつつ、更にコルゲイト管Ｔを押し込むと、コルゲイト管Ｔの先端は可動部材８０の薄肉部８２端面に当接する。そして更に力を加えると、コルゲイト管の挿入とともに可動部材８０が、通孔部１６の奥方向にスライドし、可動部材８０の厚肉部８１が保持部材７２の内周面から離間する。   As shown in FIG. 5, when the corrugate pipe T is inserted into the corrugate pipe joint 1, the retainer 50 is held in an expanded state, and its inner diameter is made larger than the outer diameter of the corgate pipe T. The Colgate tube T can be inserted smoothly. When the corrugate tube T is further pushed in while feeling a slight response on the inner peripheral surface of the seal member 40, the tip of the corgate tube T comes into contact with the end surface of the thin portion 82 of the movable member 80. When further force is applied, the movable member 80 slides in the depth direction of the through-hole portion 16 with the insertion of the corrugate tube, and the thick portion 81 of the movable member 80 is separated from the inner peripheral surface of the holding member 72.

すると、保持部材７２の係止凸部７３は縮径方向の押さえが解除されたので縮径する。同時に弾性部材７０が伸長しストッパ７５が係止凸部７３から離脱し、一端はストッパ７５を通孔部１６の当接段部１１に当接するまで伸び、他端は保持部材７２を介して通孔部１６の入口方向へスライドさせシール部材４０を押圧する。さらに、金属ガイド４２と耐火パッキン４４も入口方向にスライドすることとなり、Ｌ型の金属ガイド４２の端部は、拘束部材３０のセグメント部３３を押圧する。   Then, the locking projection 73 of the holding member 72 is reduced in diameter because the pressing in the reduced diameter direction is released. At the same time, the elastic member 70 is extended and the stopper 75 is disengaged from the locking projection 73, one end is extended until it comes into contact with the contact step portion 11 of the stopper 75, and the other end is passed through the holding member 72. The seal member 40 is pressed by sliding toward the inlet of the hole 16. Further, the metal guide 42 and the fireproof packing 44 also slide in the inlet direction, and the end portion of the L-shaped metal guide 42 presses the segment portion 33 of the restraining member 30.

これによって拘束部材３０は、本体部３２が継手本体１０の凹溝１３に係止されているので、本体部３２を支点としてセグメント部３３は縮径してコルゲイト管Ｔの谷部に係合し、一端側の突出部３１は拡径方向に変位してリテーナ５０の分割部５３から離脱し、継手本体１０のヌスミ部１２に収容される。しかして、リテーナ５０は、分割部５３から拘束部材３０の突出部３１が離脱したので、縮径可能な状態となる。言い換えれば、リテーナ５０の分割部５３から拘束部材３０の突出部３１が離脱していない状態では、リテーナ５０は縮径が不可能な状態で、続く押ナット２０の押し込みも不可能となっている。即ち、コルゲイト管Ｔが所定の位置にまで挿入されていない状態では、継手本体１０と押ナット２０のヘッド部２１との間に隙間が生じることとなるので、施工作業者だけでなく、施工管理者が施工検査をする場合においても、施工不良を未然に発見することができる。   As a result, since the main body portion 32 of the restraining member 30 is locked in the concave groove 13 of the joint main body 10, the segment portion 33 is reduced in diameter with the main body portion 32 as a fulcrum, and is engaged with the valley portion of the corrugated tube T. The projecting portion 31 on one end side is displaced in the diameter increasing direction and is detached from the divided portion 53 of the retainer 50 and is accommodated in the crushed portion 12 of the joint body 10. Therefore, the retainer 50 is in a state where the diameter can be reduced because the protruding portion 31 of the restraining member 30 is detached from the divided portion 53. In other words, when the protruding portion 31 of the restraining member 30 is not detached from the split portion 53 of the retainer 50, the retainer 50 is in a state in which the diameter cannot be reduced, and the subsequent push nut 20 cannot be pushed in. . That is, when the corrugate tube T is not inserted to a predetermined position, a gap is formed between the joint body 10 and the head portion 21 of the push nut 20, so that not only the construction operator but also the construction management is performed. Even when a person conducts construction inspection, it is possible to discover construction defects beforehand.

また、このとき拘束部材３０のセグメント部３３の先端がコルゲイト管Ｔの谷部に係り合っているので、コルゲイト管Ｔに引抜き方向の力を加えることによって、コルゲイト管Ｔが抜け出すことがないので、所定の位置にまで挿入されたことを確認することができる。また、拘束部材３０がコルゲイト管Ｔの谷部に係り合うことによって、コルゲイト管Ｔとコルゲイト管用継手１との位置が定まり、下記するリテーナの爪部がコルゲイト管Ｔの谷部への係合を容易にすると共に、併せて二重の連結が出来る。   Further, at this time, since the tip of the segment portion 33 of the restraining member 30 is engaged with the valley portion of the corgate tube T, by applying a force in the pulling direction to the corgate tube T, the corgate tube T does not come out. It can be confirmed that it has been inserted to a predetermined position. Further, when the restraining member 30 is engaged with the valley portion of the corrugate tube T, the positions of the corgate tube T and the corrugate tube joint 1 are determined, and the claw portion of the retainer described below engages the valley portion of the corgate tube T. In addition to facilitating double connection.

また、拘束部材３０と保持部材７２の間に位置するシール部材４０は、弾性部材７０の付勢（ばね）力を受けて軸方向に圧縮され内径が縮径するので、シール部材４０とコルゲイト管Ｔの外周面のシール面圧を向上することになる。例えば多少扁平や変形のあるコルゲイト管であっても外径側からさらに加圧されるので気密にシールすることができる。また、弾性部材７０は、図５の如く伸長した状態でも付勢力を付加されるように設定しておくことによって、たとえシール部材４０の永久歪が進行したとしてもシール面圧を一定以上に維持することができる。特に、拘束部材３０は本体部３２が凹溝１３に係止され、セグメント部３３がコルゲイト管の谷部に係り合っているので、セグメント部３３がこの状態で固定され、弾性部材７０による付勢力によってシール部材を確実に圧縮することができる。   Further, the seal member 40 positioned between the restraining member 30 and the holding member 72 is compressed in the axial direction under the urging (spring) force of the elastic member 70 and the inner diameter is reduced, so that the seal member 40 and the corrugate tube The seal surface pressure of the outer peripheral surface of T is improved. For example, even a corrugate tube that is somewhat flat or deformed can be hermetically sealed because it is further pressurized from the outer diameter side. Further, the elastic member 70 is set so as to be applied with an urging force even in the extended state as shown in FIG. 5, so that even if the permanent deformation of the seal member 40 progresses, the seal surface pressure is maintained above a certain level. can do. In particular, the restraining member 30 has the main body portion 32 locked in the concave groove 13 and the segment portion 33 engaged with the valley portion of the corrugate tube, so that the segment portion 33 is fixed in this state, and the biasing force by the elastic member 70 is applied. Thus, the seal member can be reliably compressed.

そして、図６に示すように、継手本体１０と押ナット２０の間に配置していたカラーリング６５を取外し、押ナット２０を継手本体１０の通孔部奥側にスライドさせて押し込む。すると、押ナット２０の先端に形成したテーパ内面２８が、リテーナ５０のテーパ外面５４に当接し、リテーナ５０の爪部５２がコルゲイト管Ｔの谷部に係合する。このとき拘束部材３０の本体部３２は継手本体の凹溝１３に係止され、また突出部３１はヌスミ部１２に収容されて位置を固定されているので、弾性部材７０の伸長はこの拘束部材で受け止められ、付勢力が拘束部材で分断されている。よって、リテーナ５０ひいては押ナット２０に付勢力が及ばないので押込み力は小さくて済む。以上によって、コルゲイト管Ｔとコルゲイト管用継手１とが強固に連結し、施工が完了する。施工作業者および施工管理者は、継手本体１０に押ナット２０が押し込まれていることを確認すれば、コルゲイト管Ｔがコルゲイト管用継手１の所定の位置にまで挿入され、正常に施工されたことを容易に識別することができる。   Then, as shown in FIG. 6, the collar ring 65 arranged between the joint body 10 and the push nut 20 is removed, and the push nut 20 is slid into the through hole portion of the joint body 10 and pushed. Then, the tapered inner surface 28 formed at the tip of the push nut 20 contacts the tapered outer surface 54 of the retainer 50, and the claw portion 52 of the retainer 50 engages with the valley portion of the corrugated tube T. At this time, the main body portion 32 of the restraining member 30 is locked in the concave groove 13 of the joint main body, and the protruding portion 31 is housed in the Nusumi portion 12 and the position thereof is fixed. The urging force is divided by the restraining member. Therefore, since the urging force does not reach the retainer 50 and hence the push nut 20, the pushing force can be small. As described above, the corgate pipe T and the corrugate pipe joint 1 are firmly connected, and the construction is completed. When the construction worker and the construction manager confirm that the push nut 20 has been pushed into the joint body 10, the corgate pipe T has been inserted into the predetermined position of the joint 1 for the corgate pipe and has been normally constructed. Can be easily identified.

なお、この実施の形態において、可動部材８０とストッパ７５とは別体としたが、一体に設けることも可能である。また、可動部材８０はコルゲイト管Ｔの先端が当接するように設けたが、コルゲイト管Ｔの先端が若干斜めに切断されても可動部材８０を押圧できるようにコルゲイト管Ｔの山部と谷部の中間の傾斜面に当接するように可動部材８０を設けることもできる。   In this embodiment, the movable member 80 and the stopper 75 are separated from each other, but can be provided integrally. Further, although the movable member 80 is provided so that the tip of the corrugate tube T abuts, the peak portion and the valley portion of the corgate tube T so that the movable member 80 can be pressed even if the tip of the corgate tube T is cut slightly obliquely. It is also possible to provide the movable member 80 so as to come into contact with the intermediate inclined surface.

［第２の実施の形態］
続いて、第２の実施の形態について、図７から図１１を用いて説明する。図７は本発明のコルゲイト管用継手の第２の実施例の半断面図を、図８は本発明の第２の実施例における拘束部材の一実施例の斜視図を、図９は本発明のコルゲイト管用継手の第２の実施例におけるコルゲイト管を挿入した状態の半断面図を、図１０は本発明のコルゲイト管用継手の第２の実施例におけるコルゲイト管を接続施工完了した状態の半断面図を、図１１は本発明のコルゲイト管用継手の第２の実施例においてコルゲイト管が挿入不足の場合に押ナットをスライドさせた状態の半断面図をそれぞれ示している。
なお、図１から図６に示したコルゲイト管用継手と同一の構成は、同一の符号を付してその説明を省略する。 [Second Embodiment]
Next, a second embodiment will be described with reference to FIGS. FIG. 7 is a half sectional view of the second embodiment of the joint for corrugate pipe of the present invention, FIG. 8 is a perspective view of one embodiment of the restraining member in the second embodiment of the present invention, and FIG. FIG. 10 is a half sectional view showing a state in which the corrugate pipe is inserted in the second embodiment of the joint for corrugate pipe, and FIG. FIG. 11 is a half sectional view showing a state in which the push nut is slid when the corrugate pipe is insufficiently inserted in the second embodiment of the joint for corrugate pipe of the present invention.
In addition, the same structure as the joint for corrugate pipes shown to FIGS. 1-6 attaches | subjects the same code | symbol, and abbreviate | omits the description.

図７に示すように、コルゲイト管用継手１Ａは、継手本体１０Ａ、拘束部材３０Ａの構成以外は、図１に示したコルゲイト管用継手１と同一の構成を有している。拘束部材３０Ａはスライド規制手段の他の実施例を示しており、図８に示すように、リング状の一部に切欠き部３４を有した本体部３２Ａと、この本体部３２Ａの一端から突出した突出部３１Ａからなっている。   As shown in FIG. 7, the corrugate pipe joint 1 </ b> A has the same configuration as the corgate pipe joint 1 shown in FIG. 1 except for the structures of the joint body 10 </ b> A and the restraining member 30 </ b> A. The restraining member 30A shows another embodiment of the slide restricting means. As shown in FIG. 8, the restraining member 30A protrudes from a main body 32A having a notch 34 in a ring-shaped part and from one end of the main body 32A. 31A.

一方、継手本体１０Ａの内周面には、拘束部材保持段部１３Ａと、この拘束部材保持段部１３Ａに隣接したヌスミ部１２Ａが形成されている。そして、拘束部材３０Ａは切欠き部３４を有しているので、縮径可能になっており、縮径された状態で、本体部３２Ａが拘束部材保持部１３Ａに配置されている。また、拘束部材３０Ａの突出部３１Ａはリテーナ５０の分割部５３に嵌合している。   On the other hand, on the inner peripheral surface of the joint body 10A, there are formed a restraining member holding step 13A and a nose portion 12A adjacent to the restraining member holding step 13A. Since the restraining member 30A has the cutout portion 34, the diameter can be reduced, and the main body portion 32A is disposed on the restraining member holding portion 13A in a state of being reduced in diameter. Further, the protruding portion 31 </ b> A of the restraining member 30 </ b> A is fitted in the divided portion 53 of the retainer 50.

図９に示すように、コルゲイト管用継手１Ａにコルゲイト管Ｔを挿入すると、リテーナ５０は拡径状態で保持され、その内径がコルゲイト管Ｔの外径よりも大としているので、金属ガイド４２まではコルゲイト管Ｔをスムースに挿入することができる。そして、シール部材４０の内周面で若干の手応えを感じつつ、更にコルゲイト管Ｔを押し込むと、コルゲイト管Ｔの先端は可動部材８０の薄肉部８２端面に当接する。そして更に力を加えると、コルゲイト管の挿入とともに可動部材８０が、通孔部１６の奥方向にスライドし、可動部材８０の厚肉部８１が保持部材７２の内周面から離間する。   As shown in FIG. 9, when the corrugate pipe T is inserted into the corrugate pipe joint 1 </ b> A, the retainer 50 is held in an expanded state, and its inner diameter is larger than the outer diameter of the corgate pipe T. The Colgate tube T can be inserted smoothly. When the corrugate tube T is further pushed in while feeling a slight response on the inner peripheral surface of the seal member 40, the tip of the corgate tube T comes into contact with the end surface of the thin portion 82 of the movable member 80. When further force is applied, the movable member 80 slides in the depth direction of the through-hole portion 16 with the insertion of the corrugate tube, and the thick portion 81 of the movable member 80 is separated from the inner peripheral surface of the holding member 72.

すると、保持部材７２の係止凸部７３は縮径方向の押さえが解除されたので縮径する。同時に弾性部材７０が伸長しストッパ７５が係止凸部７３から離脱し、一端はストッパ７５を通孔部１６の当接段部１１に当接するまで伸び、他端は保持部材７２を介して通孔部１６の入口方向へスライドさせシール部材４０を押圧する。さらに、金属ガイド４２と耐火パッキン４４も入口方向にスライドすることとなり、Ｌ型の金属ガイド４２の端部は、拘束部材３０Ａの本体部３２Ａを押圧する。   Then, the locking projection 73 of the holding member 72 is reduced in diameter because the pressing in the reduced diameter direction is released. At the same time, the elastic member 70 is extended and the stopper 75 is disengaged from the locking projection 73, one end is extended until it comes into contact with the contact step portion 11 of the stopper 75, and the other end is passed through the holding member 72. The seal member 40 is pressed by sliding toward the inlet of the hole 16. Further, the metal guide 42 and the fireproof packing 44 also slide in the inlet direction, and the end of the L-shaped metal guide 42 presses the main body 32A of the restraining member 30A.

これによって拘束部材３０Ａは、縮径状態で継手本体１０Ａの拘束部材保持段部１３Ａに保持されていたので、上記押圧力によって、入口側にスライドし継手本体１０Ａのヌスミ部１２Ａに拡径しつつ移動し最後はヌスミ部１２Ａ内に収容される。しかして、リテーナ５０は、分割部５３から拘束部材３０Ａの突出部３１Ａが離脱したので、縮径可能な状態となる。言い換えれば、リテーナ５０の分割部５３から拘束部材３０Ａの突出部３１Ａが離脱していない状態では、リテーナ５０は縮径が不可能な状態で、続く押ナット２０の押し込みも不可能となっている。   As a result, the restraining member 30A is held by the restraining member holding step 13A of the joint main body 10A in a reduced diameter state, so that the restraining member 30A slides toward the inlet side and expands the diameter to the crushed portion 12A of the joint main body 10A. It moves and the last is accommodated in the press part 12A. Thus, the retainer 50 is in a state where the diameter can be reduced because the protruding portion 31A of the restraining member 30A is detached from the divided portion 53. In other words, in a state where the protruding portion 31A of the restraining member 30A is not detached from the split portion 53 of the retainer 50, the retainer 50 is in a state in which the diameter of the retainer 50 cannot be reduced, and subsequent push-in of the push nut 20 is also impossible. .

また、拘束部材３０Ａと保持部材７２の間に位置するシール部材４０は、弾性部材７０の付勢力を受けて軸方向に圧縮され、シール部材４０とコルゲイト管Ｔとのシール面圧を向上することになるので、例えば多少扁平や変形のあるコルゲイト管であっても気密にシールすることができる。また、弾性部材７０は、図９の如く伸長した状態でも付勢力を付加されるように設定しておくことによって、たとえシール部材４０の永久歪が進行したとしてもシール面圧を一定以上に維持することができる。   Further, the seal member 40 positioned between the restraining member 30 </ b> A and the holding member 72 is compressed in the axial direction under the urging force of the elastic member 70, and the seal surface pressure between the seal member 40 and the corrugate tube T is improved. Therefore, for example, even a corrugate tube having a slight flatness or deformation can be hermetically sealed. Further, the elastic member 70 is set so as to be applied with an urging force even in the extended state as shown in FIG. 9, so that the seal surface pressure is maintained above a certain level even if the permanent deformation of the seal member 40 progresses. can do.

そして、図１０に示すように、継手本体１０Ａと押ナット２０の間に配置していたカラーリング６５を取外し、押ナット２０を継手本体１０Ａの通孔部奥側にスライドさせて押し込む。すると、押ナット２０の先端に形成したテーパ内面２８が、リテーナ５０のテーパ外面５４に当接し、リテーナ５０の爪部５２がコルゲイト管Ｔの谷部に係合する。このことによって、コルゲイト管Ｔとコルゲイト管用継手１とが強固に連結し、施工が完了する。施工作業者および施工管理者は、継手本体１０に押ナット２０が押し込まれていることを確認すれば、コルゲイト管Ｔがコルゲイト管用継手１の所定の位置にまで挿入され、正常に施工されたことを容易に識別することができる。尚、弾性部材７０の伸長は拘束部材３０Ａで受け止められ、付勢力はここで分断されているので、上記実施例と同様に押ナットの押込み力は小さくてすむ。   Then, as shown in FIG. 10, the collar ring 65 arranged between the joint body 10A and the push nut 20 is removed, and the push nut 20 is slid into the through hole portion back side of the joint body 10A and pushed. Then, the tapered inner surface 28 formed at the tip of the push nut 20 contacts the tapered outer surface 54 of the retainer 50, and the claw portion 52 of the retainer 50 engages with the valley portion of the corrugated tube T. As a result, the corgate pipe T and the corrugate pipe joint 1 are firmly connected, and the construction is completed. When the construction worker and the construction manager confirm that the push nut 20 has been pushed into the joint body 10, the corgate pipe T has been inserted into the predetermined position of the joint 1 for the corgate pipe and has been normally constructed. Can be easily identified. The extension of the elastic member 70 is received by the restraining member 30A and the urging force is divided here, so that the pushing force of the push nut can be small as in the above embodiment.

一方、コルゲイト管Ｔが所定の位置にまで挿入されていない状態で押しナット２０を押し込もうとすると、図１１に示すように、拘束部材３０Ａの突出部３１Ａの先端が、押ナット２０の先端に当接して、それ以上押ナット２０がスライドできないように構成されている。上述したように、拘束部材３０の突出部３１Ａは、リテーナ５０の分割部５３に嵌合しているので、リテーナ５０自体も縮径することが不可能である。よって、コルゲイト管Ｔが所定の位置にまで挿入されない状態は、押ナット２０のスライドが完了せず、継手本体１０と押ナット２０のヘッド部２１との間に隙間が生じることとなるので、施工作業者だけでなく、施工管理者が施工検査をする場合においても、施工不良を未然に発見することができる。   On the other hand, if the push nut 20 is to be pushed in without the corrugate tube T being inserted to a predetermined position, the tip of the protruding portion 31A of the restraining member 30A becomes the tip of the push nut 20 as shown in FIG. The push nut 20 is configured not to slide any more. As described above, the protruding portion 31 </ b> A of the restraining member 30 is fitted to the divided portion 53 of the retainer 50, and thus the retainer 50 itself cannot be reduced in diameter. Therefore, when the corrugate tube T is not inserted to a predetermined position, the sliding of the push nut 20 is not completed, and a gap is generated between the joint body 10 and the head portion 21 of the push nut 20. In the case where not only the operator but also the construction manager conducts the construction inspection, it is possible to discover construction defects beforehand.

スライド規制手段としては、リテーナの分割部に拘束部材の突出部を嵌合する手段がリテーナの爪部を縮径不能に出来ると共に製造上の利点もあるので望ましい。しかし、これに限定されるものではない。例えばリテーナの分割部には別途介在物を嵌合させておき、弾性部材の伸長にともなって拘束部材を移動させ突出部で押して前記介在物を離脱させる手段も考えられる。また、リテーナ単独でこれを拡径した状態で保持し、拘束部材の突出部によるスライド阻止機能と分離する手段でも良い。例えば継手の外径は若干大きくなるものの、リテーナをモールド成型で拡径状態に形成保持し、このリテーナの外径側に拘束部材の突出部を独立して位置させておく手段が考えられる。また、他の実施形態については以下で説明する。 As the slide restricting means, means for fitting the protruding portion of the restraining member to the divided portion of the retainer can make the diameter of the claw portion of the retainer non-reducible and has an advantage in manufacturing. However, it is not limited to this. For example, it is conceivable that a separate inclusion is fitted to the divided portion of the retainer, and the restraining member is moved along with the extension of the elastic member and pushed by the protruding portion to separate the inclusion. Alternatively, the retainer alone may be held in an expanded state and separated from the slide blocking function by the protruding portion of the restraining member. For example, although the outer diameter of the joint is slightly increased, a means is conceivable in which the retainer is formed and held in an expanded state by molding, and the protruding portion of the restraining member is positioned independently on the outer diameter side of the retainer. Other embodiments will be described below.

［第３の実施の形態］
続いて、第３の実施の形態について、図１２から図１５を用いて説明する。図１２は本発明のコルゲイト管用継手の第３の実施例の半断面図を、図１３は本発明のコルゲイト管用継手の第３の実施例におけるコルゲイト管を挿入した状態の半断面図を、図１４は本発明のコルゲイト管用継手の第３の実施例におけるコルゲイト管を接続施工完了した状態の半断面図を、図１５は本発明のコルゲイト管用継手の第３の実施例においてコルゲイト管が挿入不足の場合に押ナットをスライドさせた状態の半断面図をそれぞれ示している。
なお、図１から図６に示したコルゲイト管用継手と同一の構成は、同一の符号を付してその説明を省略する。 [Third Embodiment]
Next, a third embodiment will be described with reference to FIGS. FIG. 12 is a half sectional view of a third embodiment of the joint for corrugate pipe of the present invention, and FIG. 13 is a half sectional view of the third embodiment of the joint for corrugate pipe of the present invention in a state where the corgate pipe is inserted. 14 is a half cross-sectional view of the third embodiment of the joint for corrugate pipe of the present invention in a state where the connection construction of the corrugate pipe has been completed, and FIG. 15 is insufficiently inserted in the third embodiment of the joint for corrugate pipe of the present invention. The half sectional views of the state in which the push nut is slid in the case of are shown.
In addition, the same structure as the joint for corrugate pipes shown to FIGS. 1-6 attaches | subjects the same code | symbol, and abbreviate | omits the description.

図１２に示すように、コルゲイト管用継手１Ｂは、一端側からコルゲイト管Ｔが挿入される通孔部１６を有する継手本体１０Ｂと、一方に大径となしたヘッド部２１と他方に小径とした挿入部２４とを有し、この挿入部２４が継手本体１０の通孔部１６に挿入されるようになした押ナット２０Ｂと、押ナット２０Ｂの先端に配置されコルゲイト管の谷部に係り合うセグメント部９３を有する抜止め部材９０と、コルゲイト管Ｔの外周面をシールするシール部材４０と、圧縮状態で保持された弾性部材７０と、保持部材７２と、コルゲイト管Ｔの先端に押圧され通孔部１６の奥方向にスライド可能な可動部材８０とを有する。
換言すれば、コルゲイト管用継手１Ｂは、図１に示したコルゲイト管用継手１のリテーナ５０と拘束部材３０の機能を併せ持つ抜止め部材９０として構成させたものである。 As shown in FIG. 12, the joint 1B for the corrugate pipe has a joint body 10B having a through hole portion 16 into which the corrugate pipe T is inserted from one end side, a head portion 21 having a large diameter on one side, and a small diameter on the other side. A push nut 20B that is inserted into the through-hole portion 16 of the joint body 10, and is arranged at the tip of the push nut 20B and engages with a trough portion of the corrugate tube. The retaining member 90 having the segment portion 93, the seal member 40 that seals the outer peripheral surface of the corrugate tube T, the elastic member 70 that is held in a compressed state, the holding member 72, and the distal end of the corgate tube T are pressed through. The movable member 80 is slidable in the depth direction of the hole 16.
In other words, the corrugate pipe joint 1B is configured as a retaining member 90 having the functions of the retainer 50 and the restraining member 30 of the corgate pipe joint 1 shown in FIG.

継手本体１０Ｂの手前側（図の左方向）の通孔部１６には、通孔部１６の奥方向（図の右方向）に向かって縮径するテーパ面を有した第一係止溝１７が形成され、更に通孔部１６の奥方向には第一係止溝１７の径と同径の係止段部１８ａと、係止段部１８ａに連なり係止段部１８ａよりも大径としたヌスミ部１２、及び凹溝１３が形成されている。一方、押ナット２０Ｂの挿入部２４には係止凹溝２５が形成されている。そして、第一係止溝１７と係止凹溝２５を跨ぐようにストップリング６１が配置されている。また、継手本体１０Ｂの一端面と押ナット２０Ｂのヘッド部２１との間には、脱離可能なカラーリング６５が配置されている。   A first locking groove 17 having a tapered surface with a diameter decreasing toward the back direction (right direction in the drawing) of the through hole portion 16 in the through hole portion 16 on the front side (left direction in the drawing) of the joint body 10B. Further, in the depth direction of the through-hole portion 16, a locking step portion 18a having the same diameter as the diameter of the first locking groove 17, and a larger diameter than the locking step portion 18a are connected to the locking step portion 18a. The crushed portion 12 and the recessed groove 13 are formed. On the other hand, a locking groove 25 is formed in the insertion portion 24 of the push nut 20B. And the stop ring 61 is arrange | positioned so that the 1st locking groove 17 and the locking groove 25 may be straddled. A detachable color ring 65 is disposed between the one end face of the joint body 10B and the head portion 21 of the push nut 20B.

抜止め部材９０の本体部９２は通孔部１６に設けられた凹溝１３に係止されている。抜止め部材９０は、一部が分断されたＣ形の本体部９２と、一端側にスライド規制突起９１が形成され、このスライド規制突起９１は押ナット２０Ｂの先端部２８Ｂに対峙している。他端側は端部に向かって縮径するテーパ外面をなした複数のセグメント部９３に分かれて設けられている。抜止め部材９０は、リテーナ５０と同様に例えば母体がプラスチック製、セグメント部９３が真ちゅう製であり、両者は一体にモールド成形されている。そして、本体部９２が凹溝１３に係止されているので、弾性部材７０の伸長により、本体部３２を支点として、セグメント部３３側が縮径してコルゲイト管の谷部に係止し、スライド規制突起９１が本体部９２を支点として拡径側に変位することによって押ナット２０Ｂの先端部２８Ｂを回避する。また、抜止め部材９０のセグメント部９３の内径は、無負荷状態ではコルゲイト管Ｔの外形よりも大径となるように成形されている。従って、コルゲイト管Ｔの挿入の段階では、抜止め部材９０のセグメント部９３はコルゲイト管Ｔの山部Ｔ２に係り合うことなくスムースに挿入することができる。   The main body 92 of the retaining member 90 is locked to the concave groove 13 provided in the through hole 16. The retaining member 90 has a C-shaped main body 92 that is partly divided, and a slide restricting protrusion 91 formed on one end thereof, and the slide restricting protrusion 91 faces the tip end 28B of the push nut 20B. The other end side is provided by being divided into a plurality of segment portions 93 having a tapered outer surface whose diameter decreases toward the end portion. Similarly to the retainer 50, the retaining member 90 is made of, for example, a plastic base material and a segment part 93 made of brass, and both are integrally molded. Since the main body portion 92 is locked in the concave groove 13, the extension of the elastic member 70 reduces the diameter of the segment 33 side with the main body portion 32 as a fulcrum, and locks it in the trough portion of the corrugate tube. The restricting projection 91 is displaced toward the diameter expansion side with the main body 92 as a fulcrum, thereby avoiding the distal end 28B of the push nut 20B. Further, the inner diameter of the segment portion 93 of the retaining member 90 is formed to be larger than the outer shape of the corrugate tube T in an unloaded state. Therefore, at the stage of inserting the corrugate tube T, the segment portion 93 of the retaining member 90 can be smoothly inserted without being engaged with the peak portion T2 of the corgate tube T.

続いて、コルゲイト管用継手１Ｂにコルゲイト管Ｔを接続する手順とその作用について図１３乃至図１５を用いて詳細に説明する。   Next, a procedure for connecting the corrugate pipe T to the corrugate pipe joint 1B and its operation will be described in detail with reference to FIGS.

図１３に示すように、コルゲイト管用継手１Ｂにコルゲイト管Ｔを挿入すると、抜止部材９０の内径がコルゲイト管Ｔの外径よりも大としているので、金属ガイド４２まではコルゲイト管Ｔをスムースに挿入することができる。そして、シール部材４０の内周面で若干の手応えを感じつつ、更にコルゲイト管Ｔを押し込むと、コルゲイト管Ｔの先端は可動部材８０の薄肉部８２端面に当接する。そして更に力を加えると、コルゲイト管の挿入とともに可動部材８０が、通孔部１６の奥方向にスライドし、可動部材８０の厚肉部８１が保持部材７２の内周面から離間する。   As shown in FIG. 13, when the corrugate pipe T is inserted into the corrugate pipe joint 1 </ b> B, the inner diameter of the retaining member 90 is larger than the outer diameter of the corgate pipe T. Therefore, the corrugate pipe T is smoothly inserted up to the metal guide 42. can do. When the corrugate tube T is further pushed in while feeling a slight response on the inner peripheral surface of the seal member 40, the tip of the corgate tube T comes into contact with the end surface of the thin portion 82 of the movable member 80. When further force is applied, the movable member 80 slides in the depth direction of the through-hole portion 16 with the insertion of the corrugate tube, and the thick portion 81 of the movable member 80 is separated from the inner peripheral surface of the holding member 72.

すると、保持部材７２の係止凸部７３は縮径方向の押さえが解除されたので縮径する。同時に弾性部材７０が伸長しストッパ７５が係止凸部７３から離脱し、一端はストッパ７５を通孔部１６の当接段部１１に当接するまで伸び、他端は保持部材７２を介して通孔部１６の入口方向へスライドさせシール部材４０を押圧する。さらに、金属ガイド４２と耐火パッキン４４も入口方向にスライドすることとなり、Ｌ型の金属ガイド４２の端部は、抜止め部材９０Ａのセグメント部９３を押圧する。   Then, the locking projection 73 of the holding member 72 is reduced in diameter because the pressing in the reduced diameter direction is released. At the same time, the elastic member 70 is extended and the stopper 75 is disengaged from the locking projection 73, one end is extended until it comes into contact with the contact step portion 11 of the stopper 75, and the other end is passed through the holding member 72. The seal member 40 is pressed by sliding toward the inlet of the hole 16. Further, the metal guide 42 and the fireproof packing 44 also slide in the inlet direction, and the end portion of the L-shaped metal guide 42 presses the segment portion 93 of the retaining member 90A.

これによって抜止め部材９０は、本体部９２が継手本体１０Ｂの凹溝１３に係止されているので、本体部９２を支点としてセグメント部９３は縮径してコルゲイト管Ｔの谷部に係合し、一端側のスライド規制突起９１は拡径方向に変位して継手本体１０Ｂのヌスミ部１２に収容される。しかして、スライド規制突起９１がヌスミ部１２内に収容されたので押ナット２０の押し込みも可能となった。   As a result, the main body 92 of the retaining member 90 is locked in the concave groove 13 of the joint main body 10B. Therefore, the segment 93 is reduced in diameter with the main body 92 serving as a fulcrum, and is engaged with the valley of the corrugate tube T. Then, the slide restricting projection 91 on one end side is displaced in the diameter increasing direction and is accommodated in the nose portion 12 of the joint body 10B. Therefore, since the slide restricting projection 91 is accommodated in the press portion 12, the push nut 20 can be pushed in.

また、シール部材４０は、弾性部材７０の付勢力を受けて軸方向に圧縮され内径が縮径するので、シール部材４０とコルゲイト管Ｔとのシール面圧を向上することになる。例えば多少扁平や変形のあるコルゲイト管であっても外径側からさらに加圧されるので気密にシールすることができる。また、弾性部材７０は、図１３の如く伸長した状態でも付勢力を付加されるように設定しておくことによって、たとえシール部材４０の永久歪が進行したとしてもシール面圧を一定以上に維持することができる。特に、抜止め部材９０は本体部９２が凹溝１３に係止され、セグメント部９３がコルゲイト管の谷部に係り合っているので、セグメント部９３がこの状態で固定され、弾性部材７０による付勢力によってシール部材を確実に圧縮することができる。   Further, since the sealing member 40 is compressed in the axial direction under the urging force of the elastic member 70 and the inner diameter is reduced, the sealing surface pressure between the sealing member 40 and the corrugate tube T is improved. For example, even a corrugate tube that is somewhat flat or deformed can be hermetically sealed because it is further pressurized from the outer diameter side. Further, the elastic member 70 is set so as to be applied with an urging force even in the extended state as shown in FIG. 13, so that the seal surface pressure is maintained above a certain level even if the permanent deformation of the seal member 40 progresses. can do. In particular, the retaining member 90 has the main body portion 92 locked in the concave groove 13 and the segment portion 93 is engaged with the valley portion of the corrugate tube. Therefore, the segment portion 93 is fixed in this state and attached by the elastic member 70. The sealing member can be reliably compressed by the force.

そして、図１４に示すように、継手本体１０Ｂと押ナット２０Ｂの間に配置していたカラーリング６５を取外し、押ナット２０Ｂを継手本体１０Ｂの通孔部奥側にスライドさせて押し込む。すると、押ナット２０Ｂの先端部２８Ｂが、抜止め部材９０のスライド規制突起９１の内径側に嵌まり込む。このことによって、スライド規制突起９１が縮径不可能となるので、セグメント部９３はコルゲイト管Ｔの谷部に強固に係り合う。このとき抜止め部材９０の本体部９２は継手本体の凹溝１３に係止され、またスライド規制突起９１はヌスミ部１２に収容されて位置を固定されているので、弾性部材７０の伸長はこの抜止め部材で受け止められ、付勢力が拘束部材で分断されている。よって、押ナット２０に付勢力が及ばないので押込み力は小さくてすむ。以上によって、コルゲイト管Ｔとコルゲイト管用継手１とが強固に連結し、施工が完了する。   Then, as shown in FIG. 14, the collar ring 65 disposed between the joint body 10B and the push nut 20B is removed, and the push nut 20B is slid into the through hole portion of the joint body 10B and pushed. Then, the front end portion 28B of the push nut 20B is fitted into the inner diameter side of the slide restricting protrusion 91 of the retaining member 90. As a result, the diameter of the slide restricting projection 91 cannot be reduced, and the segment portion 93 is firmly engaged with the valley portion of the corrugate tube T. At this time, the main body portion 92 of the retaining member 90 is locked in the concave groove 13 of the joint main body, and the slide restricting projection 91 is housed in the press portion 12 and is fixed in position. The retaining member is received, and the urging force is divided by the restraining member. Therefore, since the urging force does not reach the push nut 20, the pushing force can be small. As described above, the corgate pipe T and the corrugate pipe joint 1 are firmly connected, and the construction is completed.

施工作業者および施工管理者は、継手本体１０Ｂに押ナット２０Ｂが押し込まれていることを確認すれば、コルゲイト管Ｔがコルゲイト管用継手１Ｂの所定の位置にまで挿入され、正常に施工されたことを容易に識別することができる。   When the construction worker and the construction manager confirm that the push nut 20B is pushed into the joint body 10B, the corrugate pipe T has been inserted up to the predetermined position of the joint 1B for the corgate pipe and has been normally constructed. Can be easily identified.

一方、コルゲイト管Ｔが所定の位置にまで挿入されていない状態で押しナット２０Ｂを押し込もうとすると、図１５に示すように、抜止め部材９０のスライド規制突起９１の先端が、押ナット２０Ｂの先端部２８ｂに当接して、それ以上押ナット２０Ｂがスライドできないように規制されている。よって、コルゲイト管Ｔが所定の位置にまで挿入されない状態は、押ナット２０Ｂのスライドが完了せず、継手本体１０Ｂと押ナット２０Ｂのヘッド部２１との間に隙間が生じることとなるので、施工作業者だけでなく、施工管理者が施工検査をする場合においても、施工不良を未然に発見することができる。   On the other hand, when trying to push the push nut 20B in a state where the corrugate tube T is not inserted to the predetermined position, as shown in FIG. 15, the tip of the slide restricting projection 91 of the retaining member 90 is pushed to the push nut 20B. The push nut 20 </ b> B is restricted so that it can no longer slide. Therefore, when the corrugate tube T is not inserted to the predetermined position, the slide of the push nut 20B is not completed, and a gap is generated between the joint body 10B and the head portion 21 of the push nut 20B. In the case where not only the operator but also the construction manager conducts the construction inspection, it is possible to discover construction defects beforehand.

なお、コルゲイト管Ｔが所定の位置にまで挿入されていない状態からコルゲイト管Ｔを引抜いてしまい、この動作に伴って、シール部材４０がスライドし、抜止め部材９０のセグメント部９３がコルゲイト管Ｔに係り合うことのないように、継手本体１０Ｂの内周面には、内周側に突出したストッパ係止部１９ａを設け、ストッパ７５を係止させている。
ストッパ７５は保持部材７２の係止凸部と係合し、また保持部材７２、シール部材４０、金属ガイド４２は接着等で一体とされているので、不用意にコルゲイト管Ｔを引抜かれた場合でも、シール部材４０が通孔部１６の入口側に向かってスライドすることはない。 The corrugate tube T is pulled out from the state where the corrugate tube T is not inserted to a predetermined position. With this operation, the seal member 40 slides, and the segment portion 93 of the retaining member 90 is connected to the corrugate tube T. In order not to engage with each other, a stopper locking portion 19a protruding to the inner peripheral side is provided on the inner peripheral surface of the joint body 10B, and the stopper 75 is locked.
The stopper 75 engages with the locking projection of the holding member 72, and the holding member 72, the seal member 40, and the metal guide 42 are integrated by bonding or the like, so that the corrugate tube T is accidentally pulled out. However, the seal member 40 does not slide toward the inlet side of the through hole portion 16.

［第４の実施の形態］
続いて、第４の実施の形態について、図１６から図１８を用いて説明する。図１６は本発明のコルゲイト管用継手の第４の実施例の半断面図を、図１７は本発明のコルゲイト管用継手の第４の実施例における分解工程を示すの半断面図を、図１８は本発明のコルゲイト管用継手の第４の実施例における分解後の半断面図をそれぞれ示している。
なお、図１から図１５に示したコルゲイト管用継手と同一の構成は、同一の符号を付してその説明を省略する。 [Fourth Embodiment]
Next, a fourth embodiment will be described with reference to FIGS. FIG. 16 is a half sectional view of the fourth embodiment of the joint for corrugate pipes of the present invention, FIG. 17 is a half sectional view of the disassembling process in the fourth embodiment of the joint for corrugate pipes of the present invention, and FIG. The half sectional view after decomposition | disassembly in the 4th Example of the coupling for corrugate pipes of this invention is shown, respectively.
In addition, the same structure as the joint for corrugate pipes shown to FIGS. 1-15 attaches | subjects the same code | symbol, and abbreviate | omits the description.

図１６に示すように、コルゲイト管用継手１Ｃは、円筒状入子１００を継手本体１０Ｃの通孔部１６内に備え、抜止め部材９０Ｃの外周を支持している点が上記実施例と異なっている。円筒状入子１００の内周面には、奥方向に向かって縮径するテーパ面を有した第一係止溝１１７が形成され、これに隣接して第一係止溝１１７の径と同径の係止段部１１８ａと、係止段部１１８ａよりも大径としたヌスミ部１１２が形成されている。そして、押ナット２０Ｂの挿入部２４に形成された係止凹溝２５を跨ぐようにストップリング６１が配置されている。また、円筒状入子１００の外周面にはＯリング溝１２３が形成され、Ｏリング１４７を介して水密にシールされている。また、円筒状入子１００は止輪１１５を介して継手本体１０Ｃに係止されている。   As shown in FIG. 16, the corrugate pipe joint 1 </ b> C is different from the above embodiment in that the cylindrical insert 100 is provided in the through hole portion 16 of the joint main body 10 </ b> C and the outer periphery of the retaining member 90 </ b> C is supported. Yes. A first locking groove 117 having a tapered surface that decreases in the depth direction is formed on the inner peripheral surface of the cylindrical insert 100, and is adjacent to this and has the same diameter as the first locking groove 117. A locking step portion 118a having a diameter and a Nusumi portion 112 having a larger diameter than the locking step portion 118a are formed. And the stop ring 61 is arrange | positioned so that the latching ditch | groove 25 formed in the insertion part 24 of the push nut 20B may be straddled. Further, an O-ring groove 123 is formed on the outer peripheral surface of the cylindrical insert 100 and is sealed in a watertight manner via an O-ring 147. Further, the cylindrical insert 100 is locked to the joint body 10 </ b> C via a retaining ring 115.

このような円筒状入子１００を用いた構造にしたので、継手本体１０Ｃの通孔部１６の奥側から順に各々の構成部材を挿入して組立てることが可能となる。そして、この組立を自動化すれば、更にコルゲイト管用継手１Ｃを容易に組み立てることができ、製造コストを低減することができる。   Since such a structure using the cylindrical insert 100 is used, it is possible to insert and assemble each constituent member in order from the back side of the through hole portion 16 of the joint body 10C. If this assembly is automated, the corrugate pipe joint 1C can be further easily assembled, and the manufacturing cost can be reduced.

なお、コルゲイト管用継手１Ｃは、図１２に示したコルゲイト管用継手１Ｂのように金属ガイド４２を係止する段部１９を設けていない。しかしながら、火災等で高温にさらされ、シール部材４０が焼失した場合には、コイルドウエイブスプリング７０Ｃが更に伸長するので、耐火パッキン４４が膨張したとしても、金属ガイド４２が通孔部１６の奥側へ移動することを規制することができる。   Note that the corrugated pipe joint 1C is not provided with the stepped portion 19 for locking the metal guide 42 unlike the corrugated pipe joint 1B shown in FIG. However, when the seal member 40 is burned down due to a high temperature due to a fire or the like, the coiled wave spring 70C further expands. Therefore, even if the fireproof packing 44 expands, the metal guide 42 remains behind the through hole portion 16. The movement to the side can be restricted.

コルゲイト管用継手１Ｃを分解するにあたっては、図１７に示すように、継手本体１０Ｃと押ナット２０Ｂのヘッド部２１との間に挟着していた分解用リング６３を取外し、押ナット２０Ｂを継手本体１０Ｃの側に押し込む。すると、ストップリング６１が係止段部１１８ａの位置からヌスミ部１１２へと移動し、ここでストップリング６１が拡径するので、継手本体１０Ｃと押ナット２０Ｂとの連結が開放される。   In disassembling the corrugated pipe joint 1C, as shown in FIG. 17, the disassembling ring 63 sandwiched between the joint main body 10C and the head portion 21 of the push nut 20B is removed, and the push nut 20B is attached to the joint main body. Push it to the 10C side. Then, the stop ring 61 moves from the position of the locking step portion 118a to the Nusumi portion 112, where the stop ring 61 is expanded in diameter, so that the connection between the joint body 10C and the push nut 20B is released.

そして、図１８に示すように、押ナット２０Ｂを継手本体１０Ｃから引抜き、止輪１１５を取外すと、コイルドウエイブスプリング７０Ｃに各部材が押出されて、コルゲイト管用継手１Ｃを分解することができる。   Then, as shown in FIG. 18, when the push nut 20B is pulled out from the joint body 10C and the retaining ring 115 is removed, each member is pushed out by the coiled wave spring 70C, and the corrugated pipe joint 1C can be disassembled.

分解された各部材は、ステンレス鋼であるコルゲイト管、黄銅等の継手本体や押ナット、合成ゴム製のシール部材などに材質ごとに分別してリサイクルしても良いし、再び組み立てて再使用（リユース）することもできる。   The disassembled parts may be recycled by separating them into materials such as corrugate tubes made of stainless steel, brass fittings, push nuts, synthetic rubber seals, etc., or reassembled and reused (reused) ).

［第５の実施の形態］
続いて、第５の実施の形態について、図１９を用いて説明する。図１９は本発明のコルゲイト管用継手の第５の実施例の半断面図を示している。なお、図１から図１５に示したコルゲイト管用継手と同一の構成は、同一の符号を付してその説明を省略する。 [Fifth Embodiment]
Next, a fifth embodiment will be described with reference to FIG. FIG. 19 shows a half sectional view of the fifth embodiment of the joint for corrugate pipe of the present invention. In addition, the same structure as the joint for corrugate pipes shown to FIGS. 1-15 attaches | subjects the same code | symbol, and abbreviate | omits the description.

図１９に示すように、コルゲイト管用継手１Ｄは、コイルドウエイブスプリング７０Ｃを圧縮状態で保持する断面Ｌ形の保持部材７２の係止凸部７３が継手本体１０Ｄの内周面に係止している点が上記実施例と異なっている。すなわち、継手本体１０Ｄの内周面には保持部材係止溝１５０が形成されており、この保持部材係止溝１５０に係止凸部７３が係止されている。また、係止凸部７３が保持部材係止溝から外れないように、保持部材７２の内周面には可動部材８０が挿入されている。   As shown in FIG. 19, in the corrugate pipe joint 1D, the locking protrusion 73 of the holding member 72 having an L-shaped cross section that holds the coiled wave spring 70C in a compressed state is locked to the inner peripheral surface of the joint body 10D. This is different from the above embodiment. That is, the holding member locking groove 150 is formed on the inner peripheral surface of the joint body 10 </ b> D, and the locking projection 73 is locked to the holding member locking groove 150. A movable member 80 is inserted on the inner peripheral surface of the holding member 72 so that the locking projection 73 does not come off from the holding member locking groove.

そして、コルゲイト管Ｔが挿入されると、可動部材８０が通孔部１６の奥方向（図の下方向）にスライドし、可動部材８０の厚肉部８１が保持部材７２の内周面から離間する。したがって、コルゲイト管用継手１Ｄは、ストッパ７５の構成がなくとも、上述したコルゲイト管用継手１から１Ｃの作用を得ることができるので、部品点数を減少させ製造原価を抑えることができる。   When the corrugate tube T is inserted, the movable member 80 slides in the depth direction of the through-hole portion 16 (downward in the figure), and the thick portion 81 of the movable member 80 is separated from the inner peripheral surface of the holding member 72. To do. Accordingly, the corgate pipe joint 1D can obtain the above-described operation of the corrugate pipe joint 1 to 1C without the configuration of the stopper 75, thereby reducing the number of parts and suppressing the manufacturing cost.

［第６の実施の形態］
続いて、第６の実施の形態について、図２０から図２２を用いて説明する。図２０は本発明のコルゲイト管用継手の第６の実施例の半断面図を、図２１は本発明のコルゲイト管用継手の第６の実施例における保持部材の斜視図を、図２２は本発明のコルゲイト管用継手の第６の実施例におけるコルゲイト管を接続施工完了した状態の半断面図を示している。なお、図１から図１５に示したコルゲイト管用継手と同一の構成は、同一の符号を付してその説明を省略する。 [Sixth Embodiment]
Next, a sixth embodiment will be described with reference to FIGS. FIG. 20 is a half sectional view of the sixth embodiment of the joint for corrugate pipes of the present invention, FIG. 21 is a perspective view of the holding member in the sixth embodiment of the joint for corrugate pipes of the present invention, and FIG. The half sectional view of the state which completed the connection construction of the corrugate pipe | tube in the 6th Example of the joint for corrugate pipes is shown. In addition, the same structure as the joint for corrugate pipes shown to FIGS. 1-15 attaches | subjects the same code | symbol, and abbreviate | omits the description.

図２０に示すように、コルゲイト管用継手１Ｅは、コイルドウエイブスプリング７０Ｃを圧縮状態で保持する断面略コの字形の保持部材７２Ｅが継手本体１０Ｅの内周面に形成された嵌挿部１５２に嵌挿されている点で上記実施例と異なっている。また、嵌挿部１５２の奥側には、嵌挿部１５２よりも大径とした内径の保持部材移動空間１５４が形成されている。   As shown in FIG. 20, the corrugate pipe joint 1E has a substantially U-shaped holding member 72E for holding the coiled wave spring 70C in a compressed state on a fitting portion 152 formed on the inner peripheral surface of the joint body 10E. It is different from the above embodiment in that it is inserted. In addition, a holding member moving space 154 having an inner diameter larger than that of the insertion portion 152 is formed on the back side of the insertion portion 152.

より具体的には、保持部材７２Ｅは、図２１に示すように、断面略コの字形の外周側一端には４箇所の係止凸部７３Ｅが形成され、内周側の一端はコルゲイト管Ｔの先端に当接するようにシール部材４０の内周面にまで延長されている。そして、コの字の内側にコイルドウエイブスプリング７０Ｃが収容される。   More specifically, as shown in FIG. 21, the holding member 72E has four locking projections 73E at one end on the outer peripheral side having a substantially U-shaped cross section, and one end on the inner peripheral side is a corrugate tube T. It extends to the inner peripheral surface of the seal member 40 so as to abut the tip of the seal member 40. A coiled wave spring 70C is accommodated inside the U-shape.

コルゲイト管用継手１Ｅにコルゲイト管Ｔが挿入されると、図２２に示すように、コルゲイト管Ｔの先端が保持部材７２Ｅの内周側の一端に当接し、更にコルゲイト管Ｔを押し込むと、保持部材７２Ｅが継手本体１０Ｅの奥方向へスライドする。そして、保持部材７２Ｅの係止凸部７３Ｅが、保持部材移動空間１５４までスライドすると、ここで拡径して圧縮状態に保持していたコイルドウエイブスプリング７０Ｃを保持状態から開放する。   When the corrugate pipe T is inserted into the corrugate pipe joint 1E, as shown in FIG. 22, the tip of the corgate pipe T comes into contact with one end on the inner peripheral side of the holding member 72E, and when the corgate pipe T is further pushed in, the holding member 72E slides toward the back of the joint body 10E. Then, when the locking projection 73E of the holding member 72E slides to the holding member moving space 154, the coiled wave spring 70C that has been expanded in diameter and held in the compressed state is released from the holding state.

すると、ストッパ７５Ｅは、コイルドウエイブスプリング７０Ｃのばね力によって、シール部材４０を圧縮し、更には抜止め部材９０のセグメント部９３がコルゲイト管Ｔの谷部に係り合うと同時に、スライド規制突起９１が拡径して、押ナット２０Ｂがスライド可能となる。   Then, the stopper 75E compresses the seal member 40 by the spring force of the coiled wave spring 70C, and the segment portion 93 of the retaining member 90 is engaged with the valley portion of the corrugate tube T, and at the same time, the slide restricting projection 91 The push nut 20B can be slid.

したがって、コルゲイト管用継手１Ｅは、可動部材の構成がなくとも、上述したコルゲイト管用継手の機能を果たし、部品点数の少ないコルゲイト管用継手とすることができる。
また、コルゲイト管用継手１Ｅにコルゲイト管Ｔを接続した後には、可動部材が通孔部１６に残存することがないので、ガス等の流体が流動する際に、流動の圧力損失などの原因となることを未然に防止することができる。 Therefore, the corgate pipe joint 1E can function as the above-described corrugate pipe joint without a movable member, and can be a corrugate pipe joint with a small number of parts.
In addition, since the movable member does not remain in the through-hole portion 16 after the corrugate tube T is connected to the corrugate tube joint 1E, when a fluid such as a gas flows, it causes a pressure loss of the flow. This can be prevented beforehand.

また、保持部材７２Ｅ、ストッパ７５Ｅ、嵌挿部１５２及び保持部材移動空間１５４の構成は、コルゲイト管用継手１、１Ａ、１Ｂ、１Ｃの保持部材７２、ストッパ７５、可動部材８０の構成に置き換えることができ、この場合においても同様の作用効果を得ることができる。   The configuration of the holding member 72E, the stopper 75E, the fitting insertion portion 152, and the holding member moving space 154 can be replaced with the configuration of the holding member 72, the stopper 75, and the movable member 80 of the corrugate pipe joints 1, 1A, 1B, and 1C. In this case, the same effect can be obtained.

以上、説明したように、本発明に係るコルゲイト管用継手によれば、コルゲイト管を所定の位置に挿入していない状態では、リテーナあるいは抜止め部材の縮径を阻止する、または押ナットのスライドを規制するように構成されているので、コルゲイト管が所定の位置にまで挿入されることを確実にすることができる。また、同時にコルゲイト管を所定位置まで挿入した後にシール部材を軸方向に圧縮するように構成されているので、コルゲイト管に多少の扁平や変形があった場合においても、長期にわたって安定したシール性を保持することができる。   As described above, according to the joint for a corrugate pipe according to the present invention, in a state where the corgate pipe is not inserted into a predetermined position, the retainer or the retaining member is prevented from being reduced in diameter, or the push nut is slid. Since it is configured to regulate, it can be ensured that the corrugate tube is inserted to a predetermined position. In addition, since the seal member is configured to be compressed in the axial direction after the corrugate tube is inserted to a predetermined position at the same time, even when the corgate tube is slightly flattened or deformed, a stable sealing performance is obtained over a long period of time. Can be held.

本発明に係るコルゲイト管用継手の形状は一端に雄ねじ部を有する片ねじソケットに限らず、両ソケット、エルボ、ティー、または雌ねじを有するものであってもよい。またガス栓やガスメータなどの機器の端部に本発明の継手構造を一体的に設けることもできる。   The shape of the joint for a corrugate pipe according to the present invention is not limited to a single screw socket having a male thread portion at one end, and may have both sockets, elbows, tees, or female threads. Further, the joint structure of the present invention can be integrally provided at the end of a device such as a gas stopper or a gas meter.

また、各部材の材質は、例示した材質に限ることなく、適宜変更することが可能で、例えば、抜止め部材９０Ｃは、射出成形等によって全てプラスチック製としても良いし、プレス等によって金属製で成形することもできる。   Further, the material of each member is not limited to the exemplified material, and can be changed as appropriate. For example, the retaining member 90C may be made of plastic by injection molding or the like, or made of metal by a press or the like. It can also be molded.

本発明のコルゲイト管用継手の一実施例の半断面図である。It is a half sectional view of one example of a joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の一実施例の部品展開斜視図である。It is a components expansion | deployment perspective view of one Example of the joint for corrugate pipes of this invention. 本発明におけるリテーナと拘束部材とを嵌合させた状態の斜視図である。It is a perspective view of the state where the retainer and the restraint member in the present invention were fitted. 本発明における弾性部材の実施例の斜視図である。It is a perspective view of the Example of the elastic member in this invention. 本発明のコルゲイト管用継手にコルゲイト管を挿入した状態の半断面図である。It is a half sectional view of a state where a corrugate pipe is inserted into the joint for corrugate pipe of the present invention. 本発明のコルゲイト管用継手にコルゲイト管を接続施工完了した状態の半断面図である。FIG. 5 is a half cross-sectional view of a state in which the construction for connecting the corrugate pipe to the corrugate pipe joint of the present invention is completed. 本発明のコルゲイト管用継手の第２の実施例の半断面図である。It is a half sectional view of the 2nd example of the joint for corrugate pipes of the present invention. 本発明の第２の実施例における拘束部材の一実施例の斜視図である。It is a perspective view of one Example of the restraint member in the 2nd Example of this invention. 本発明のコルゲイト管用継手の第２の実施例におけるコルゲイト管を挿入した状態の半断面図である。It is a half sectional view of the state where the corrugate pipe in the 2nd example of the joint for corrugate pipes of the present invention was inserted. 本発明のコルゲイト管用継手の第２の実施例におけるコルゲイト管を接続施工完了した状態の半断面図である。It is a half sectional view of the state where connection construction of the corrugate pipe in the 2nd example of the joint for corrugate pipes of the present invention was completed. 本発明のコルゲイト管用継手の第２の実施例においてコルゲイト管が挿入不足の場合に押ナットをスライドさせた状態の半断面図である。FIG. 6 is a half cross-sectional view showing a state in which a push nut is slid when a corrugate pipe is insufficiently inserted in the second embodiment of the joint for a corgate pipe of the present invention. 本発明のコルゲイト管用継手の第３の実施例の半断面図である。It is a half sectional view of the 3rd example of the joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第３の実施例におけるコルゲイト管を挿入した状態の半断面図である。It is a half sectional view of the state where the corrugate pipe in the 3rd example of the joint for corrugate pipes of the present invention was inserted. 本発明のコルゲイト管用継手の第３の実施例におけるコルゲイト管を接続施工完了した状態の半断面図である。It is a half sectional view of the state where connection construction of the corrugate pipe in the 3rd example of the joint for corrugate pipes of the present invention was completed. 本発明のコルゲイト管用継手の第３の実施例においてコルゲイト管が挿入不足の場合に押ナットをスライドさせた状態の半断面図である。FIG. 9 is a half cross-sectional view of a third embodiment of the joint for a corgate pipe of the present invention in a state where a push nut is slid when the corrugate pipe is insufficiently inserted. 本発明のコルゲイト管用継手の第４の実施例の半断面図である。It is a half sectional view of the 4th example of the joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第４の実施例における分解工程を示すの半断面図である。It is a half sectional view showing the decomposition process in the 4th example of the joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第４の実施例における分解後の半断面図である。It is a half sectional view after decomposition in the 4th example of the joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第５の実施例の半断面図である。It is a half sectional view of the 5th example of the joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第６の実施例の半断面図である。It is a half sectional view of the 6th example of the joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第６の実施例における保持部材の斜視図である。It is a perspective view of the holding member in the 6th example of a joint for corrugate pipes of the present invention. 本発明のコルゲイト管用継手の第６の実施例におけるコルゲイト管を接続施工完了した状態の半断面図である。It is a half sectional view in the state where connection construction of the corrugate pipe in the 6th example of the joint for corrugate pipes of the present invention was completed.

符号の説明Explanation of symbols

１、１Ａ、１Ｂ、１Ｃ、１Ｄ、１Ｅ：コルゲイト管用継手、
１０、１０Ａ、１０Ｂ、１０Ｃ、１０Ｄ、１０Ｅ：継手本体、１１：当接段部、１２、１２Ａ：ヌスミ部、１３：凹溝、１３Ａ：拘束部材保持段部、１４：雄ねじ部、１５：工具掛部、１６：通孔部、１７：第一係止溝、１８ａ：係止段部、１８ｂ：大径段部、１９：段部、１９ａ：ストッパ係止部、
２０、２０Ｂ：押ナット、２１：ヘッド部、２２：挿通孔部、２３：Ｏリング溝、２４：挿入部、２５：係止凹溝、２６：通気穴、２８：テーパ内面、２８Ｂ：先端部、
３０、３０Ａ：拘束部材、３１、３１Ａ：突出部、３２、３２Ａ：本体部、３３：セグメント部、３４：切欠き部、
４０：シール部材、４２：金属ガイド、４４：耐火パッキン、４７：水密Ｏリング、４８：水密パッキン、
５０：リテーナ、５２：爪部、５３：分割部、５４：テーパ外面、
６０：選択透過性部材、６１：ストップリング、６３：分解用リング、６５：カラーリング、６５ａ：取手部
７０：弾性部材、７０Ａ：異形断面ばね（角ばね）、７０Ｂ：円すいコイルばね７０Ｂ、７０Ｃ：コイルドウエイブスプリング、７０Ｄ１：波座金、７０Ｄ２：平座金、７０Ｅ：微小コイルばね、
７２、７２Ｅ：保持部材、７３、７３Ｅ：係止凸部、７５、７５Ｅ：ストッパ、
８０：可動部材、８１：厚肉部、８２：薄肉部、
９０、９０Ｃ：抜止め部材、９１：スライド規制突起、９２：本体部、９３：セグメント部、
１００：円筒状入子（入子部材）、１１２：ヌスミ部、１１５：止輪、１１７：第一係止溝、１１８ａ：係止段部、１２３：Ｏリング溝、１４７：Ｏリング
１５０：保持部材係止溝、１５２：嵌挿部、１５４：保持部材移動空間、
Ｔ：コルゲイト管、Ｔ２：山部、Ｔ４：谷部、Ｔ６：樹脂被覆層、
1, 1A, 1B, 1C, 1D, 1E: Fitting for corrugate pipe,
10, 10A, 10B, 10C, 10D, 10E: Joint body, 11: Abutting step portion, 12, 12A: Nusumi portion, 13: Concave groove, 13A: Restraining member holding step portion, 14: Male screw portion, 15: Tool Hanging portion, 16: through hole portion, 17: first locking groove, 18a: locking step portion, 18b: large diameter step portion, 19: step portion, 19a: stopper locking portion,
20, 20B: Push nut, 21: Head part, 22: Insertion hole part, 23: O-ring groove, 24: Insertion part, 25: Locking groove, 26: Vent hole, 28: Tapered inner surface, 28B: Tip part ,
30, 30A: Restraint member, 31, 31A: Protruding part, 32, 32A: Main body part, 33: Segment part, 34: Notch part,
40: seal member, 42: metal guide, 44: fireproof packing, 47: watertight O-ring, 48: watertight packing,
50: Retainer, 52: Claw part, 53: Dividing part, 54: Tapered outer surface,
60: Selective permeability member, 61: Stop ring, 63: Ring for disassembly, 65: Color ring, 65a: Handle 70: Elastic member, 70A: Deformed section spring (square spring), 70B: Conical coil spring 70B, 70C : Coiled wave spring, 70D1: Wave washer, 70D2: Plain washer, 70E: Micro coil spring,
72, 72E: holding member, 73, 73E: locking projection, 75, 75E: stopper,
80: movable member, 81: thick part, 82: thin part,
90, 90C: retaining member, 91: slide restricting protrusion, 92: body portion, 93: segment portion,
100: Cylindrical nesting (nesting member), 112: Nusumi part, 115: Retaining ring, 117: First locking groove, 118a: Locking step part, 123: O-ring groove, 147: O-ring 150: Holding Member locking groove, 152: fitting insertion portion, 154: holding member moving space,
T: Colgate tube, T2: Mountain, T4: Valley, T6: Resin coating layer,

Claims (16)

コルゲイト管が挿入される通孔を有する継手本体と、
前記通孔にその一端が挿入され、この通孔の軸方向にスライド可能な押ナットと、
前記押ナットにより一端が押され、他端には複数の分割部が形成されて、その先端に前記コルゲイト管の谷部に係合する拡縮可能な爪部が形成されたリテーナと、
前記押ナットのスライドを規制するスライド規制手段を有し、前記通孔内に係止された拘束部材と、
前記コルゲイト管の外周面をシールするシール部材と、
前記通孔の軸方向に伸縮自在な弾性部材と、前記弾性部材を圧縮状態で保持する保持部材及び可動部材とを有し、
挿入された前記コルゲイト管の先端が前記可動部材を奥方向に押すことによって前記弾性部材の圧縮状態が開放され、前記弾性部材の伸長にともなって、前記シール部材が軸方向に圧縮され、かつ前記拘束部材のスライド規制手段が解除されて、前記押ナットのスライドが可能となることを特徴とするコルゲイト管用継手。 A joint body having a through hole into which the corgate pipe is inserted;
One end is inserted into the through hole, and a push nut slidable in the axial direction of the through hole,
A retainer in which one end is pushed by the push nut, a plurality of divided portions are formed at the other end, and a claw portion that can be expanded and contracted is formed at the tip thereof to engage with a valley portion of the corrugate tube,
A restraint member that restrains the slide of the push nut and that is locked in the through hole; and
A sealing member for sealing the outer peripheral surface of the corrugate tube;
An elastic member that is elastic in the axial direction of the through hole, and a holding member and a movable member that hold the elastic member in a compressed state,
When the inserted end of the corrugate tube pushes the movable member in the back direction, the compression state of the elastic member is released, and with the extension of the elastic member, the seal member is compressed in the axial direction, and A joint for a corgate pipe, wherein the slide restricting means of the restraining member is released and the push nut can be slid. 前記スライド規制手段は、前記リテーナの分割部に前記拘束部材に形成された突出部を嵌合することによって、前記リテーナの爪部を拡径状態に保持し、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記拘束部材の突出部が前記リテーナの分割部から離脱することによってスライド規制が解除されることを特徴とする請求項１に記載のコルゲイト管用継手。 The slide restricting means holds the claw portion of the retainer in a diameter-enlarged state by fitting a protruding portion formed on the restraining member into the divided portion of the retainer, and the compressed state of the elastic member is released. The joint for a corrugated pipe according to claim 1, wherein when the elastic member is extended, the sliding restriction is released when the protruding portion of the restraining member is detached from the split portion of the retainer. 前記通孔内に係止された拘束部材よりも奥側に前記シール部材と、前記弾性部材と、前記保持部材及び可動部材とが配置され、手前側に前記リテーナと前記押ナットとが配置されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長は前記拘束部材で受け止められて、前記リテーナと前記押ナットには前記弾性部材の付勢力が掛からないことを特徴とする請求項１または２に記載のコルゲイト管用継手。 The seal member, the elastic member, the holding member, and the movable member are arranged on the back side of the restraining member locked in the through hole, and the retainer and the push nut are arranged on the front side. When the compressed state of the elastic member is released, the extension of the elastic member is received by the restraining member, and the urging force of the elastic member is not applied to the retainer and the push nut. The joint for corrugate pipes according to claim 1 or 2. 前記拘束部材の他端は複数のセグメント部が形成されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記セグメント部が前記コルゲイト管の谷部に係合することを特徴とする請求項１乃至３の何れかに記載のコルゲイト管用継手。 The other end of the restraining member is formed with a plurality of segment portions. When the elastic member is released from the compressed state, the segment portions are engaged with the trough portions of the corrugate tube as the elastic member expands. The joint for corrugate pipes according to any one of claims 1 to 3, wherein the joints are combined. コルゲイト管が挿入される通孔を有する継手本体と、
前記通孔にその一端が挿入され、この通孔の奥方向にスライド可能な押ナットと、
一端に前記押ナットのスライドを規制するスライド規制手段を有し、他端に前記コルゲイト管の谷部に係り合う拡縮可能な爪部が形成された抜止め部材と、
前記コルゲイト管の外周面をシールするシール部材と、
軸方向に伸縮自在な弾性部材と、
前記弾性部材を圧縮状態で保持する保持部材と可動部材とを有し、
挿入された前記コルゲイト管の先端が前記可動部材を奥方向に押すことによって前記弾性部材の圧縮状態が開放されると共に、
前記弾性部材の伸長にともなって、前記シール部材が軸方向に圧縮され、かつ前記抜止め部材のスライド規制手段が解除されて、
前記押ナットのスライドが可能となることを特徴とするコルゲイト管用継手。 A joint body having a through hole into which the corgate pipe is inserted;
One end of the through hole is inserted into the through hole, and a push nut that can slide in the back direction of the through hole,
A retaining member having a slide restricting means for restricting the slide of the push nut at one end, and an expandable / contractible claw portion engaging with a valley portion of the corrugate pipe at the other end;
A sealing member for sealing the outer peripheral surface of the corrugate tube;
An elastic member that is elastic in the axial direction;
A holding member and a movable member for holding the elastic member in a compressed state;
While the distal end of the inserted corrugate tube pushes the movable member in the back direction, the compressed state of the elastic member is released,
Along with the extension of the elastic member, the seal member is compressed in the axial direction, and the slide restricting means of the retaining member is released,
A joint for a corrugate pipe, wherein the push nut can be slid. 前記抜止め部材は、一端にスライド規制突起が形成され、外周の一部を通孔に係止すると共に、前記抜止め部材の爪部を拡径状態に保持し、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記抜止め部材のスライド規制突起が前記押ナット先端より外径側に変位してスライド規制が解除されることを特徴とする請求項５に記載のコルゲイト管用継手。 The retaining member is formed with a slide restricting projection at one end, and a part of the outer periphery is locked in the through hole, and the claw portion of the retaining member is held in an expanded state, and the compression state of the elastic member is 6. When the elastic member is opened, the slide restricting protrusion of the retaining member is displaced to the outer diameter side from the tip end of the push nut when the elastic member is extended, and the slide restrict is released. Corrugate pipe joint as described. 前記通孔内に係止された抜止め部材よりも奥側に前記シール部材と、前記弾性部材と、前記保持部材及び可動部材とが配置され、手前側に前記押ナットが配置されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長は前記抜止め部材で受け止められて、前記押ナットには前記弾性部材の付勢力が掛からないことを特徴とする請求項５または６に記載のコルゲイト管用継手。 The seal member, the elastic member, the holding member and the movable member are arranged on the back side of the retaining member locked in the through hole, and the push nut is arranged on the front side, 6. The elastic member according to claim 5, wherein when the compressed state of the elastic member is released, the extension of the elastic member is received by the retaining member, and the urging force of the elastic member is not applied to the push nut. 6. A joint for corrugate pipes according to 6. 前記抜止め部材の他端は複数のセグメント部が形成されており、前記弾性部材の圧縮状態が開放されたとき、前記弾性部材の伸長にともなって、前記セグメント部が前記コルゲイト管の谷部に係合することを特徴とする請求項５乃至７の何れかに記載のコルゲイト管用継手。 The other end of the retaining member is formed with a plurality of segment portions, and when the elastic member is released from the compressed state, the segment portion is formed in the valley portion of the corrugate tube as the elastic member expands. The joint for corrugate pipe according to any one of claims 5 to 7, wherein the joint is engaged. 前記抜止め部材の外周の一部は、この通孔に挿入された入子部材によって係止されており、前記入子部材の内周面に設けた凹溝と、前記押ナットの外周面に設けた凹溝とをストップリングを介して接続することを特徴とする請求項５乃至８のいずれかに記載のコルゲイト管用継手。 A part of the outer periphery of the retaining member is locked by a telescopic member inserted into the through hole, and a concave groove provided on the inner peripheral surface of the telescopic member and an outer peripheral surface of the push nut. The joint for corrugate pipes according to any one of claims 5 to 8, wherein the provided concave groove is connected via a stop ring. 前記弾性部材と、前記保持部材及び可動部材は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパと、前記保持部材の内周面を支持する可動部材とによって前記弾性部材が圧縮状態に保持されており、予め組立てられたユニット部品であることを特徴とする請求項１乃至９の何れかに記載のコルゲイト管用継手。 The elastic member, the holding member and the movable member have a substantially L-shaped cross-section, a holding member having a locking projection formed at one end, a ring-shaped stopper locked to the locking projection, and the holding The corrugate pipe assembly according to any one of claims 1 to 9, wherein the elastic member is held in a compressed state by a movable member that supports an inner peripheral surface of the member, and is a pre-assembled unit part. Fittings. 前記保持部材及び可動部材は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記保持部材の内周面を支持する可動部材であって、前記係止凸部が前記継手本体の内周面に係止することによって前記弾性部材が圧縮状態に保持されていることを特徴とする請求項１乃至９の何れかに記載のコルゲイト管用継手。 The holding member and the movable member are a holding member having a substantially L-shaped cross section and having a locking projection formed at one end thereof, and a movable member that supports the inner peripheral surface of the holding member, and the locking projection is The joint for corrugate pipe according to any one of claims 1 to 9, wherein the elastic member is held in a compressed state by being engaged with an inner peripheral surface of the joint body. 請求項１乃至９の何れかに記載のコルゲイト管用継手において、前記弾性部材を圧縮状態で保持する保持部材と可動部材の構成を、断面略コの字状で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパとからなり、前記係止凸部の外周面が前記継手本体の内周面に嵌挿されることによって前記弾性部材が圧縮状態に保持されている構成に代えたことを特徴とするコルゲイト管用継手。 10. The joint for a corrugate pipe according to claim 1, wherein the holding member and the movable member for holding the elastic member in a compressed state have a substantially U-shaped cross section, and a locking projection is formed at one end. The holding member and a ring-shaped stopper locked to the locking projection, and the elastic member is compressed by inserting the outer peripheral surface of the locking projection into the inner peripheral surface of the joint body. A joint for corrugated pipes, characterized in that it is replaced with a configuration held in a state. コルゲイト管が挿入される通孔を有する継手本体と、
前記通孔にその一端が挿入され、この通孔の軸方向にスライド可能な押ナットと、
コルゲイト管の谷部に係合する拡縮可能な爪部が形成された管連結部材と、
前記押ナットのスライドを規制するスライド規制手段と、
前記コルゲイト管の外周面をシールするシール部材と、
前記通孔の軸方向に伸縮自在な弾性部材と、前記弾性部材を圧縮状態で保持する保持手段とを有し、
前記コルゲイト管の挿入によって、前記保持手段は前記弾性部材の圧縮状態を開放し、前記弾性部材の伸長にともなって、前記シール部材が軸方向に圧縮され、かつ前記スライド規制手段が解除されて、前記押ナットのスライドが可能となることを特徴とするコルゲイト管用継手。 A joint body having a through hole into which the corgate pipe is inserted;
One end is inserted into the through hole, and a push nut slidable in the axial direction of the through hole,
A tube connecting member formed with a claw portion that can be expanded and contracted to engage with a valley portion of the corgate tube;
Slide regulating means for regulating sliding of the push nut;
A sealing member for sealing the outer peripheral surface of the corrugate tube;
An elastic member that can expand and contract in the axial direction of the through-hole, and holding means for holding the elastic member in a compressed state,
By the insertion of the corrugate tube, the holding means releases the compressed state of the elastic member, and with the extension of the elastic member, the seal member is compressed in the axial direction, and the slide restricting means is released, A joint for a corrugate pipe, wherein the push nut can be slid. 前記保持手段は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパと、前記保持部材の内周面を支持する可動部材とによって前記弾性部材が圧縮状態に保持されており、予め組立てられたユニット部品であることを特徴とする請求項１３に記載のコルゲイト管用継手。 The holding means supports a holding member having a substantially L-shaped cross section and formed with a locking projection at one end, a ring-shaped stopper locked to the locking projection, and an inner peripheral surface of the holding member. The joint for corrugate pipe according to claim 13, wherein the elastic member is held in a compressed state by a movable member and is a unit part assembled in advance. 前記保持手段は、断面略Ｌ形で一端に係止凸部が形成された保持部材と、前記保持部材の内周面を支持する可動部材であって、前記係止凸部が前記継手本体の内周面に係止することによって前記弾性部材が圧縮状態に保持されていることを特徴とする請求項１３に記載のコルゲイト管用継手。 The holding means includes a holding member having a substantially L-shaped cross section and a locking projection formed at one end, and a movable member that supports an inner peripheral surface of the holding member, and the locking projection is formed on the joint body. 14. The joint for corrugate pipe according to claim 13, wherein the elastic member is held in a compressed state by being engaged with an inner peripheral surface. 前記保持手段は、断面略コの字状で一端に係止凸部が形成された保持部材と、前記係止凸部に係止されたリング状のストッパとからなり、前記係止凸部の外周面が前記継手本体の内周面に嵌挿されることによって前記弾性部材が圧縮状態に保持されていることを特徴とする請求項１３に記載のコルゲイト管用継手。
The holding means includes a holding member having a substantially U-shaped cross section and having a locking projection formed at one end thereof, and a ring-shaped stopper locked to the locking projection. 14. The joint for corrugate pipe according to claim 13, wherein the elastic member is held in a compressed state by inserting an outer peripheral surface into an inner peripheral surface of the joint body.
JP2007317823A 2007-09-07 2007-12-10 Corgate pipe fittings Active JP5046113B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007317823A JP5046113B2 (en) 2007-09-07 2007-12-10 Corgate pipe fittings
CN2008102125468A CN101382220B (en) 2007-09-07 2008-09-05 Joint for corrugated tube

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007232878 2007-09-07
JP2007232878 2007-09-07
JP2007317823A JP5046113B2 (en) 2007-09-07 2007-12-10 Corgate pipe fittings

Publications (2)

Publication Number Publication Date
JP2009079755A true JP2009079755A (en) 2009-04-16
JP5046113B2 JP5046113B2 (en) 2012-10-10

Family

ID=40462204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007317823A Active JP5046113B2 (en) 2007-09-07 2007-12-10 Corgate pipe fittings

Country Status (2)

Country Link
JP (1) JP5046113B2 (en)
CN (1) CN101382220B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010053975A (en) * 2008-08-28 2010-03-11 Hitachi Metals Ltd Corrugated pipe joint
WO2010131609A1 (en) * 2009-05-11 2010-11-18 日立金属株式会社 Pipe joint
JP2011052762A (en) * 2009-09-02 2011-03-17 Hitachi Metals Ltd Pipe joint
JP2011052763A (en) * 2009-09-02 2011-03-17 Hitachi Metals Ltd Seal member and corrugated pipe joint
JP2015081615A (en) * 2013-10-21 2015-04-27 株式会社サンコー Universal adapter with gas cock
JP2015108384A (en) * 2013-12-03 2015-06-11 日立金属株式会社 Pipe joint
JP2015108405A (en) * 2013-12-04 2015-06-11 日立金属株式会社 Pipe joint
WO2016132745A1 (en) * 2015-02-19 2016-08-25 日立金属株式会社 Pipe joint
WO2020203778A1 (en) 2019-03-29 2020-10-08 日立金属株式会社 Retainer and pipe joint using same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5297689B2 (en) * 2007-05-10 2013-09-25 株式会社サンコー Corrugated fitting
KR102248763B1 (en) * 2013-10-24 2021-05-04 스와겔로크 컴패니 Single action push to connect conduit fitting
JP6922342B2 (en) * 2017-03-31 2021-08-18 日立金属株式会社 Pipe fitting
CN111102410B (en) * 2018-10-26 2023-05-02 光阳产业股份有限公司 Joint for flexible pipe and locking member for the joint

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100373085C (en) * 2001-10-04 2008-03-05 东京瓦斯株式会社 Inserting pipe joint

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010053975A (en) * 2008-08-28 2010-03-11 Hitachi Metals Ltd Corrugated pipe joint
US9182061B2 (en) 2009-05-11 2015-11-10 Hitachi Metals, Ltd. Pipe joint
WO2010131609A1 (en) * 2009-05-11 2010-11-18 日立金属株式会社 Pipe joint
KR101725169B1 (en) * 2009-05-11 2017-04-10 히타치 긴조쿠 가부시키가이샤 Pipe joint
KR20120024748A (en) * 2009-05-11 2012-03-14 히타치 긴조쿠 가부시키가이샤 Pipe joint
CN102439346A (en) * 2009-05-11 2012-05-02 日立金属株式会社 Pipe joint
JP5400145B2 (en) * 2009-05-11 2014-01-29 日立金属株式会社 Pipe fitting
JP2011052763A (en) * 2009-09-02 2011-03-17 Hitachi Metals Ltd Seal member and corrugated pipe joint
JP2011052762A (en) * 2009-09-02 2011-03-17 Hitachi Metals Ltd Pipe joint
JP2015081615A (en) * 2013-10-21 2015-04-27 株式会社サンコー Universal adapter with gas cock
JP2015108384A (en) * 2013-12-03 2015-06-11 日立金属株式会社 Pipe joint
JP2015108405A (en) * 2013-12-04 2015-06-11 日立金属株式会社 Pipe joint
WO2016132745A1 (en) * 2015-02-19 2016-08-25 日立金属株式会社 Pipe joint
WO2020203778A1 (en) 2019-03-29 2020-10-08 日立金属株式会社 Retainer and pipe joint using same
US11959568B2 (en) 2019-03-29 2024-04-16 Proterial, Ltd. Retainer and pipe joint using retainer

Also Published As

Publication number Publication date
CN101382220B (en) 2012-07-18
CN101382220A (en) 2009-03-11
JP5046113B2 (en) 2012-10-10

Similar Documents

Publication Publication Date Title
JP5046113B2 (en) Corgate pipe fittings
US9182061B2 (en) Pipe joint
JP5384882B2 (en) Corgate fittings
JP5202178B2 (en) Fitting for flexible pipe
JP2008304057A (en) Corrugated pipe joint
JP5219266B2 (en) Corgate fittings
JP4968585B2 (en) Plug-in fitting
JP5461117B2 (en) Corrugated fitting
JP6250377B2 (en) Pipe fitting
JP5194187B2 (en) Fitting for flexible pipe
JP4722770B2 (en) Pipe fitting
JP2008111453A (en) Joint for flexible pipe
JP6215676B2 (en) Pipe fitting
JP2009019665A (en) Corrugated pipe joint
JP2018173108A (en) Pipe joint
JP2009019664A (en) Joint for corrugated pipe
JP2009008218A (en) Corrugated pipe joint
JP5255982B2 (en) Fitting for flexible pipe
JP2009019667A (en) Pipe joint
JP5514931B2 (en) Fitting for flexible pipe
JP3129410U (en) Fitting for flexible pipe
JP5422315B2 (en) Fitting for flexible pipe
JP5487033B2 (en) Fitting for flexible pipe
JP5244636B2 (en) Fitting for flexible pipe
WO2010087406A1 (en) Joint for flexible pipe

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101111

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111219

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120622

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120621

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120705

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150727

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5046113

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350