JPH0714291U - Pipe fitting - Google Patents
Pipe fittingInfo
- Publication number
- JPH0714291U JPH0714291U JP4454493U JP4454493U JPH0714291U JP H0714291 U JPH0714291 U JP H0714291U JP 4454493 U JP4454493 U JP 4454493U JP 4454493 U JP4454493 U JP 4454493U JP H0714291 U JPH0714291 U JP H0714291U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- ring member
- connecting pipe
- spring
- cut
- 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.)
- Pending
Links
Landscapes
- Joints With Sleeves (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
(57)【要約】
【目的】 少ない部品により管を傷めることなく確実に
抜止めを図ることができる管継手を提供することを目的
とする。
【構成】 継手本体１の端部に接続すべき管２の端部を
挿入し得る管挿入部３を設け、この管挿入部３内の外端
近くの内周に接続管２の外周と小許の隙間をもって嵌入
し得るよう接続管２の外径に近似する内径を有するリン
グ部材６を抜止めして内嵌するとともにこのリング部材
６の奥側にその内側面にそっておかれ接続管挿入時にそ
の接続管の外周により拡開されるバネリング部材７を内
嵌し、このバネリング部材は、その内周から所要深さに
わたるスリットを放射方向に等間隔に形成して複数のバ
ネ片を形成し、前記スリットの一つの内端に切離部Ｐを
設けたことを特徴とする。
(57) [Abstract] [Purpose] An object of the present invention is to provide a pipe joint which can reliably prevent the pipe from being damaged by a small number of parts without damaging the pipe. A pipe insertion portion 3 into which an end portion of a pipe 2 to be connected can be inserted is provided at an end portion of a joint main body 1, and an inner periphery of the pipe insertion portion 3 near an outer end is connected to an outer periphery of the connection pipe 2 and a small portion. A ring member 6 having an inner diameter approximating the outer diameter of the connecting pipe 2 is inserted and fitted therein so that it can be fitted with a certain clearance. A spring ring member 7 that is expanded by the outer circumference of the connecting pipe at the time of insertion is fitted inside, and the spring ring member is formed with slits extending from the inner circumference to a required depth at equal intervals in the radial direction to form a plurality of spring pieces. The slit P is provided at one inner end of the slit.
Description
【０００１】[0001]
本考案は管継手に係り、特に接続すべき管の端部を差込むだけで抜止めされる 管継手に関する。 The present invention relates to a pipe joint, and more particularly to a pipe joint that can be retained by simply inserting an end portion of a pipe to be connected.
【０００２】[0002]
管のなかでホースを差込むだけで抜止めされるようにしたホース継手として特 公昭５６−１６３１７号公報に記載のものがある。 There is a hose joint described in Japanese Patent Publication No. 56-16317 as a hose joint that can be prevented from being pulled out only by inserting a hose in the pipe.
【０００３】 このものは図１１に示すように、継手本体ａの軸方向に貫通して穿設された流 体通路の出口付近の内面に、ホースｂの外周面と流体通路の内面との気密、水密 を保つＯリングｃと、ホースｂの外周面を逆止的に係止する傾斜リングｄと、こ れを押える扼止リングｅと、これを押圧するコイルバネｆと、前記傾斜リングｄ を抜止めするスナップリングｇとが設けられ、ホースｂの端部を継手本体ａ内に 挿入するときはホースｂが傾斜リングｄの内周にそって挿入され、引戻し時には 傾斜リングｄがバネｆの押圧力および扼止リングｅの摩擦により傾斜し、その傾 斜リングｄの内周縁のエッジ部がホースｂの外周面に係合して抜止めされるよう になされている。As shown in FIG. 11, this product has an airtight seal between the outer peripheral surface of the hose b and the inner surface of the fluid passage, on the inner surface near the outlet of the fluid passage formed by penetrating in the axial direction of the joint body a. , An O-ring c for keeping watertightness, an inclined ring d for locking the outer peripheral surface of the hose b in a reverse manner, a retaining ring e for pressing this, a coil spring f for pressing this, and the inclined ring d. A snap ring g is provided to prevent the hose b from being pulled out, and when the end of the hose b is inserted into the joint body a, the hose b is inserted along the inner circumference of the inclined ring d. The tilting ring d is inclined by the pressing force and the friction of the retaining ring e, and the edge portion of the inner peripheral edge of the inclined ring d is engaged with the outer peripheral surface of the hose b to be retained.
【０００４】 しかしながら上記従来の技術では、傾斜リングｄ、扼止リングｅ、コイルバネ ｆ等の部品を組込む必要があることから、部品点数が多く、製造コストが嵩む一 方、ホースｂの抜け方向への力が作用したとき傾斜リングｄが傾くことによりそ の内周のエッジ部で抜止めすることになるため、傾斜リングｄの内周のエッジ部 の周方向の一部に集中的に無理な力が作用してホースｂを傷めやすいばかりでな く抜止め力が十分に得難いなどの種々の問題点があった。However, in the above-mentioned conventional technique, since it is necessary to assemble components such as the inclined ring d, the retaining ring e, and the coil spring f, the number of components is large and the manufacturing cost increases, while the hose b is removed in the pulling direction. When the tilting ring d is tilted by the force of, the inner edge part of the tilting ring d is prevented from coming off. Therefore, it is impossible to concentrate on a part of the inner edge part of the tilting ring d in the circumferential direction. There are various problems that the force acts easily to damage the hose b, and it is difficult to obtain sufficient retaining force.
【０００５】 そこで上記構造に代え、図１２に正面図を示すように板バネ材により内周から 所要深さにわたり半径方向に複数のスリットｈ，ｈ…を等間隔に形成して複数の バネ片ｉ，ｉ…を形成したバネリング部材ｊを設け、このバネリング部材ｊを図 １３に示すように継手本体ａ内に納め、ホースｂの挿入時にバネ片ｉ，ｉ…がホ ースｂの外周面にくいついて抜止めされるようにしたものを開発した。Therefore, instead of the above structure, as shown in the front view of FIG. 12, a plurality of slits h, h ... Are formed at equal intervals in the radial direction from the inner circumference to a required depth by a leaf spring material. A spring ring member j having i, i ... Is provided, the spring ring member j is housed in the joint body a as shown in FIG. 13, and the spring pieces i, i ... When the hose b is inserted, the outer peripheral surface of the hose b. We have developed a product that is difficult to hold and can be stopped.
【０００６】 しかるに上記バネリング部材ｊにより抜止めを図ると、通常の引戻し力に対し ては十分耐抗力を有し、所期の目的を達成し得るが、配管内の内圧が加わること によりホースｂに引抜き力Ｆ1 が発生し、この力Ｆ1 によりホースｂに係止して いるバネリング部材ｊのバネ片ｉ，ｉ…には圧縮方向への力Ｆ2 が発生し、これ によりバネリング部材ｊのバネ片ｉ，ｉ…の付根部分、すなわちスリットｈの奥 端の狭隘部ｋにはＦ2 の分力Ｆ3 が加わることになる。However, if the spring ring member j is used as a retainer, the spring ring member j has sufficient resistance against normal pulling back force and the intended purpose can be achieved, but the internal pressure in the pipe is applied to the hose b. the pulling force F 1 is generated, the spring piece i of the spring ring members j that is locked to the hose b, the i ... force F 2 to the compression direction caused by the force F 1, thereby the spring ring member j The component force F 3 of F 2 is applied to the root portions of the spring pieces i, i ..., That is, the narrow portion k at the back end of the slit h.
【０００７】 このようにホースｂ内に内圧が繰返し加わると、狭隘部ｋに加わる引張りの繰 返し疲労により破断が発生し、バネ片ｉ，ｉ…がばらばらになってしまうことが あった。When the internal pressure is repeatedly applied to the hose b as described above, the spring pieces i, i ... May be separated due to fracture due to repeated fatigue of tension applied to the narrow portion k.
【０００８】 本考案はこれに鑑み、スリットの奥端の狭隘部の破断を防ぎ、長期にわたり抜 止め機能を失うことのない管接続具を提供することを目的とする。In view of this, an object of the present invention is to provide a pipe connector that prevents breakage of the narrow portion at the back end of the slit and does not lose the retaining function for a long period of time.
【０００９】[0009]
上記従来の技術が有する問題点を解決する手段として、本考案は、継手本体の 端部に接続すべき接続管の端部を挿入し得る管挿入部を設け、この管挿入部内の 外端近くの内周に接続管の外周と小許の隙間をもって嵌入し得るよう接続管の外 径に近似する内径を有するリング部材を抜止めして内嵌するとともにこのリング 部材の奥側にその内側面にそっておかれ接続管挿入時にその接続管の外周により 拡開されるバネリング部材を内嵌し、このバネリング部材は、その内周から所要 深さにわたるスリットを放射方向に等間隔に形成して複数のバネ片を形成し、前 記スリットの一つの内端に切離部を設けたことを特徴とする。 As a means for solving the problems of the above-mentioned conventional techniques, the present invention provides a pipe insertion portion into which an end portion of a connecting pipe to be connected can be inserted at an end portion of a joint body, and near the outer end in the pipe insertion portion. A ring member having an inner diameter that is close to the outer diameter of the connecting pipe is retained inside the inner surface of the connecting pipe so that it can fit into the outer periphery of the connecting pipe with a small clearance. The spring ring member, which is expanded along the outer circumference of the connecting pipe when the connecting pipe is inserted, is fitted inside, and this spring ring member has slits extending from the inner periphery to the required depth at equal intervals in the radial direction. The present invention is characterized in that a plurality of spring pieces are formed, and a cutout portion is provided at one inner end of the slit.
【００１０】[0010]
【作用】 継手本体の管挿入部から接続すべき管の端部を挿入し、その内部にあるリング 部材の内周を通して押込むと、バネリング部材が接続管によって押し広げられ、 接続管を所定深さまで挿入する。この挿入状態から接続管を引抜くと、バネリン グ部材の内端が管の引戻しにより縮径してその内端が管の外周面にくい込み、抜 くことができない。[Operation] When the end of the pipe to be connected is inserted from the pipe insertion portion of the joint body and pushed through the inner circumference of the ring member inside, the spring ring member is spread by the connection pipe and the connection pipe is opened to a predetermined depth. Now insert. When the connecting pipe is pulled out from this inserted state, the inner end of the spring ring member is reduced in diameter by pulling back the pipe, and the inner end of the spring ring member is pushed into the outer peripheral surface of the pipe and cannot be pulled out.
【００１１】 接続管に内圧がかかり、引戻し力が繰返し作用してバネリング部材のスリット の奥端の狭隘部に周方向の引張力が負荷されても、バネリング部材の上記狭隘部 の一つの内端に設けている切離部で切離されるので、そのギャップにより吸収さ れ、他の狭隘部での破損が防がれる。Even if internal pressure is applied to the connecting pipe and a pullback force is repeatedly applied to apply a tensile force in the circumferential direction to the narrow portion at the deep end of the slit of the spring ring member, one inner end of the narrow portion of the spring ring member is applied. Since it is cut off at the cut-off part provided in the, it is absorbed by the gap and damage at other narrow spaces is prevented.
【００１２】 請求項４のようにバネリング部材の内周縁に被膜を形成することにより、接続 管の挿入時には被膜によって接続管の外周面に痕がつかず、引戻し力が加わると 被膜が切れてバネリング部材の内周縁のエッジが立ち、接続管の外周面にくい込 んで抜止めされる。また請求項５のように管挿入部の内部に傾斜面を設けておけ ば、管挿入時におけるバネリング部材の内方への変位が容易に行なわれ、僅かな 力で接続管を押込むことができ、接続管の引抜きに対してはバネリング部材がリ ング部材の内側面によって変位が規制されるので抜止め作用は変らない。さらに 請求項６のようにリング部材を変形可能とすれば、リング部材の内周縁が接続管 の外周面にくい込むことになるので、一層抜止め効果が高められる。By forming the coating film on the inner peripheral edge of the spring ring member as in claim 4, the coating film does not mark the outer peripheral surface of the connection pipe when the connecting pipe is inserted, and the coating film is broken when pulling back force is applied to the spring ring member. The edge of the inner peripheral edge of the member stands up, and it fits into the outer peripheral surface of the connecting pipe and is retained. Further, if the inclined surface is provided inside the pipe insertion portion as in claim 5, the spring ring member can be easily displaced inward when the pipe is inserted, and the connection pipe can be pushed in with a slight force. When the connection pipe is pulled out, the displacement of the spring ring member is restricted by the inner surface of the ring member, so that the retaining action remains unchanged. Further, if the ring member is made deformable as in claim 6, the inner peripheral edge of the ring member is pushed into the outer peripheral surface of the connecting pipe, so the retaining effect is further enhanced.
【００１３】[0013]
以下、本考案を図面に示す実施例を参照して説明する。 図１において、継手本体１は金属材料により形成され、その一端にはこれに接 続すべき接続管２（金属管）の端部を挿入する管挿入部３が形成され、他端はこ の接続管２と連通されるべき管あるいは他の機器等への接続部４が形成されてお り、継手本体１の内部の通路５で連通されている。 The present invention will be described below with reference to the embodiments shown in the drawings. In FIG. 1, the joint body 1 is formed of a metal material, and at one end thereof is formed a pipe insertion portion 3 into which the end portion of the connecting pipe 2 (metal pipe) to be connected is inserted, and at the other end thereof. A connecting portion 4 to a pipe or other equipment to be communicated with the connecting pipe 2 is formed, and is connected to a passage 5 inside the joint body 1.
【００１４】 前記管挿入部３の外端部の内径は接続管２の外径より大きく形成され、この管 挿入部３内にはその外端側にリング部材６が内嵌され、その奥側にはリング部材 ６の内側面にそうようにバネリング部材７が内嵌されている。An inner diameter of an outer end portion of the pipe insertion portion 3 is formed to be larger than an outer diameter of the connection pipe 2, and a ring member 6 is fitted inside the pipe insertion portion 3 on an outer end side thereof, and a rear side thereof. The spring ring member 7 is fitted inside the ring member 6 in this manner.
【００１５】 上記リング部材６は金属板材からなっており、その外周が管挿入部３の内周に 可及的密に嵌入する外径を有し、内径は接続管２の外径より僅かに大きく形成さ れたもので、管挿入部３の外端近くに設けられる抜止め部８により抜止めされて いる。この抜止め部８は、管挿入部３の内周の溝９に嵌合する断面円形、断面四 角形等のスナップリングにより構成されている。The ring member 6 is made of a metal plate material, the outer circumference of which has an outer diameter that fits as closely as possible into the inner circumference of the pipe insertion portion 3, and the inner diameter is slightly smaller than the outer diameter of the connecting pipe 2. It is formed to be large, and is retained by a retaining portion 8 provided near the outer end of the tube insertion portion 3. The retaining portion 8 is formed by a snap ring having a circular cross section, a square cross section, or the like, which fits into the groove 9 on the inner circumference of the tube insertion section 3.
【００１６】 前記バネリング部材７は板バネ材からなっており、図２に正面形状を、図３に 断面形状を示すように外径は前記管挿入部３の内周にそっておかれる寸法を有し 、内周部は半径方向に等角配置をもって形成される複数（図では８箇所）のスリ ット１０，１０…によりバネ片１１，１１…が形成されており、このバネ片１１ ，１１…の先端による仮想内径は接続管２の外径よりも僅かに小となるように定 められている。これを断面でみると、これらバネ片１１，１１…は管挿入部３の 奥側に傾斜されていてバネ片全体として円錐形をなしており、頂点角度は１２０ °程度とされている。なおこのバネ片１１，１１…は、接続管２の材質や引抜き に対する耐抗力の大小に応じすべて同長とせずともよく、また接続管２の挿入時 におけるバネ片１１，１１…の変形を容易にするには、スリット１０，１０…の 深さを大きくすることにより適宜に選択することができる。The spring ring member 7 is made of a leaf spring material, and its outer diameter has a dimension along the inner circumference of the pipe insertion portion 3 as shown in the front view of FIG. 2 and the sectional shape of FIG. The spring pieces 11, 11 ... Are formed by a plurality of slits (10 in the figure), which are formed in an equiangular arrangement in the radial direction. The virtual inner diameter of the tips of 11 ... Is set to be slightly smaller than the outer diameter of the connecting pipe 2. When viewed in cross section, these spring pieces 11, 11 ... Are inclined toward the inner side of the tube insertion portion 3 and have a conical shape as a whole spring piece, and the apex angle is about 120 °. The spring pieces 11, 11 ... May not all have the same length depending on the material of the connecting pipe 2 and the strength of the pulling resistance against drawing, and the spring pieces 11, 11 ... Are easily deformed when the connecting pipe 2 is inserted. The depth can be appropriately selected by increasing the depth of the slits 10, 10 ...
【００１７】 前記スリット１０，１０…のうちの一つの内端の狭隘部には切離部Ｐが設けら れている。図１，図２の実施例における切離部Ｐはスリット１０をバネリング部 材７の外周まで至らしめて切離された小許の間隔を有する切目１０ａで構成され ている。A cutout portion P is provided in the narrow portion at the inner end of one of the slits 10, 10. The cut-off portion P in the embodiment of FIGS. 1 and 2 is constituted by a cut 10a having a small gap, which is cut by bringing the slit 10 to the outer circumference of the spring ring member 7.
【００１８】 この切離部Ｐは、図４に示すように一つのスリット１０の内端に対応するバネ リング部材７の外周に凹部１０ｂを形成してスリット１０の内端と外周との間に 小許の幅を有する弱め部１０ｃで構成し、この弱め部１０ｃで破断が生じるよう にしてもよい。As shown in FIG. 4, the cut-off portion P has a recess 10 b formed on the outer circumference of the spring ring member 7 corresponding to the inner end of one slit 10 so as to be located between the inner end and the outer circumference of the slit 10. It may be configured by a weakened portion 10c having a small width so that the weakened portion 10c breaks.
【００１９】 上記バネリング部材７が置かれる管挿入部３の内周には段部１２か設けられて いてバネリング部材７の外周部分が奥側へ移動しないようになっており、この段 部１２のバネリング部材７に面している部分が傾斜面１３とされている。したが って接続管２の挿入時にバネリング部材７がこの傾斜面１３にならって内方へ撓 みやすくなっている。A step portion 12 is provided on the inner circumference of the tube insertion portion 3 in which the spring ring member 7 is placed so that the outer peripheral portion of the spring ring member 7 does not move to the back side. The portion facing the spring ring member 7 is an inclined surface 13. Therefore, when the connecting pipe 2 is inserted, the spring ring member 7 follows the inclined surface 13 and is easily bent inward.
【００２０】 図１において１４は管挿入部３の内周面に嵌着されたＯリングで、接続管２の 嵌着時に接続管２の外周面に密着し、気密、液密をはかるものである。In FIG. 1, reference numeral 14 denotes an O-ring fitted to the inner peripheral surface of the tube insertion portion 3, which adheres to the outer peripheral surface of the connecting tube 2 when the connecting tube 2 is fitted and is airtight or liquid-tight. is there.
【００２１】 次に上記実施例の作用を図５〜図７の各例について説明する。 図５はバネリング部材７の外周と管挿入部３の内周との間に若干クリアランス を有する場合であり、図５（Ａ）のように継手本体１の管挿入部３から接続すべ き接続管２の端部を挿入して、その内部にあるリング部材６の内周に通して押込 むと、バネリング部材７のバネ片１１，１１…が接続管２によって押し広げられ 、接続管２を所定の深さまで挿入する。この挿入状態では、バネリング部材７の 内端は接続管２の外周面に圧接される。Next, the operation of the above embodiment will be described for each example of FIGS. FIG. 5 shows a case where there is a slight clearance between the outer circumference of the spring ring member 7 and the inner circumference of the pipe insertion portion 3. As shown in FIG. 5 (A), the connection pipe that should be connected from the pipe insertion portion 3 of the joint body 1 When the end portion of 2 is inserted and pushed through the inner circumference of the ring member 6 inside thereof, the spring pieces 11, 11, ... Of the spring ring member 7 are spread by the connecting pipe 2 and the connecting pipe 2 is moved to a predetermined position. Insert to the depth. In this inserted state, the inner end of the spring ring member 7 is pressed against the outer peripheral surface of the connecting pipe 2.
【００２２】 接続管２内の内圧が繰返し高まって接続管２に引戻し力が負荷され、バネリン グ部材７のスリット１０，１０…の奥端の狭隘部の周方向への引張り力（図１２ のＦ３）が作用しても切離部Ｐの切目１０ａによって前記引張り力が吸収され、 バネリング部材７の破損が防がれる。また切離部Ｐが弱め部１０ｃにより構成し た場合は、引張力によって切離部Ｐが最先に切離し、他の箇所に影響を及ぼすこ とがない。The internal pressure in the connecting pipe 2 is repeatedly increased and a pulling force is applied to the connecting pipe 2, and the pulling force in the circumferential direction of the narrow portion at the back end of the slits 10, 10, ... Of the spring ring member 7 (see FIG. 12). Even if F3) acts, the tensile force is absorbed by the cut 10a of the cut portion P, and damage to the spring ring member 7 is prevented. Further, when the cut-off portion P is composed of the weakened portion 10c, the cut-off portion P is cut off first by the tensile force and does not affect other places.
【００２３】 この状態で接続管２を引き抜く方向に力が作用すると、図５（Ｂ）のようにバ ネリング部材７のバネ片１１，１１…が直立する方向に変位し、バネリング部材 ７の外周部は逆に図５（Ｂ）に示すようにリング部材６の内側面から離反する方 向に変位しようとする。しかしこのバネリング部材７の外周部は段部１２によっ て大きく変位することができないのでバネ片１１，１１…が接続管２にくい込む 方向への変位によって吸収され、接続管２の抜止めが図られる。When a force acts in the direction of pulling out the connecting pipe 2 in this state, the spring pieces 11, 11, ... Of the paneling member 7 are displaced in an upright direction as shown in FIG. On the contrary, the portion tries to be displaced in the direction away from the inner surface of the ring member 6 as shown in FIG. 5 (B). However, since the outer peripheral portion of the spring ring member 7 cannot be largely displaced by the step portion 12, the spring pieces 11, 11, ... To be
【００２４】 図６はバネリング部材７の外径と管挿入部３の内径とを略同一とした場合であ り、接続管２の挿入時には図５（Ａ）と同様にして挿入される。接続管２に引戻 し力が作用すると、バネリング部材７のバネ片１１，１１…は図５（Ｂ）のよう に立ち上がり、その中間部分がリング部材６とは反対方向に弯曲してたわみ、バ ネ片１１，１１…の内端は接続管２の外周にくい込んで抜止めされる。FIG. 6 shows a case where the outer diameter of the spring ring member 7 and the inner diameter of the pipe insertion portion 3 are substantially the same, and when the connection pipe 2 is inserted, it is inserted in the same manner as in FIG. 5 (A). When the pulling force acts on the connecting pipe 2, the spring pieces 11, 11, ... Of the spring ring member 7 rise as shown in FIG. 5 (B), and the intermediate portion bends in a direction opposite to the ring member 6 and bends. The inner ends of the baffle pieces 11, 11 ... Are embedded in the outer periphery of the connecting pipe 2 and are prevented from coming off.
【００２５】 図７はリング部材６の厚みを薄くし（ａ＝ｂ×（０．３〜０．４５））、接続 管２が引戻されようとするときリング部材６が図７（Ｂ）のように変形してバネ リング部材７と共にリング部材６の内周のエッジが接続管２の外周面にくい込ん で抜止めされる。FIG. 7 shows that when the thickness of the ring member 6 is reduced (a = b × (0.3 to 0.45)) and the connecting pipe 2 is about to be pulled back, the ring member 6 is removed. As described above, the edge of the inner circumference of the ring member 6 together with the spring ring member 7 fits into the outer peripheral surface of the connecting pipe 2 and is prevented from coming off.
【００２６】 この実施例によれば、図１０に実験例を示すように図５、図６の実施例に比し 各段に引抜き力が増大している。なお「参考例」のものはリング部材６の内径が 接続管２の外径に対し大きく、隙間がある場合である。According to this embodiment, as shown in an experimental example in FIG. 10, the pulling force is increased in each stage as compared with the embodiments in FIGS. 5 and 6. In the “reference example”, the inner diameter of the ring member 6 is larger than the outer diameter of the connecting pipe 2, and there is a gap.
【００２７】 図８、図９は本考案の変形例を示すもので、図５〜図７の場合は接続管２を挿 入するとき接続管２の外周面軸方向にバネリング部材７のバネ片１１，１１…の 先端により削られて痕がついて漏洩の原因や発錆の原因を作ることのないように するため、バネリング部材７のバネ片１１，１１…の先端部に合成樹脂等による るコーテングを施して被膜１５を形成したものである。8 and 9 show a modification of the present invention. In the case of FIGS. 5 to 7, when the connecting pipe 2 is inserted, the spring piece of the spring ring member 7 is arranged in the axial direction of the outer peripheral surface of the connecting pipe 2. In order to prevent scratches from being scratched by the tips of the springs 11, 11 ... and causing a cause of leakage or rusting, a synthetic resin or the like is applied to the tips of the spring pieces 11, 11 ... of the spring ring member 7. The coating 15 is formed by coating.
【００２８】 これによると、接続管２の挿入時には図９（Ａ）のようにバネリング部材７の バネ片１１，１１…を押し広げる際には接続管２の外周面と被膜１５とが接続し て挿入され、引戻し時にはバネ片１１が起立する方向に力が作用するため図９（ Ｂ）のように被膜１５が切れ、バネ片１１の先端のエッジが露出して接続管２の 外周面にくい込んで抜止めされる。したがって挿入時にすり痕がつかないので、 漏洩や発錆の原因を作ることがない。According to this, when the connecting pipe 2 is inserted and the spring pieces 11, 11, ... Of the spring ring member 7 are spread out as shown in FIG. 9A, the outer peripheral surface of the connecting pipe 2 and the coating 15 are connected. 9B, the coating 15 is cut and the edge of the tip of the spring piece 11 is exposed to expose the outer peripheral surface of the connecting pipe 2 as shown in FIG. 9B. It is bitten in and stopped. Therefore, there are no scratches when inserting, so there is no chance of leakage or rusting.
【００２９】[0029]
以上説明したように本考案によれば、継手本体に接続管を接続する際に継手本 体の管挿入部に接続管の端部を挿入するだけで抜けない状態に接続することがで き、ワンタッチによる接続作業が可能となってその作業能率を著しく高めること ができる。また接続管の抜止めは、バネリング部材の内周の管へのくい込みによ ってなされるので接続管の材質を問わず抜止めすることができ、特にバネリング 部材のバネ片を形成しているスリットの一つの内端に切離部を設けてあるので、 接続管の内圧が高まって接続管に引戻し方向への力が繰返し作用しても、バネリ ング部材のスリットの奥端の狭隘部に加わる引張り力が前記切離部により吸収さ れ、これによりバネリング部材全体の破壊を防ぐことができる。 As described above, according to the present invention, when connecting the connection pipe to the joint body, it is possible to insert the end of the connection pipe into the pipe insertion portion of the joint body without disconnecting. One-touch connection work is possible and the work efficiency can be significantly increased. Also, since the connection pipe is retained by being pressed into the pipe on the inner circumference of the spring ring member, it can be retained regardless of the material of the connection pipe, and in particular, the spring piece of the spring ring member is formed. Since a cutout is provided at one of the inner ends of the slit, even if the internal pressure of the connecting pipe increases and the pulling force is repeatedly applied to the connecting pipe, the narrowing at the deep end of the slit of the spring ring member The applied pulling force is absorbed by the cut-off portion, which can prevent the entire spring ring member from being broken.
【図１】本考案による管継手の一実施例を示す管挿着時
の断面図。FIG. 1 is a sectional view showing an embodiment of a pipe joint according to the present invention when a pipe is inserted.
【図２】図１におけるバネリング部材の正面図。FIG. 2 is a front view of the spring ring member in FIG.
【図３】同、縦断側面図。FIG. 3 is a vertical side view of the same.
【図４】バネリング部材の他の実施例を示す正面図。FIG. 4 is a front view showing another embodiment of the spring ring member.
【図５】管挿着時の状態を示す部分拡大断面図。FIG. 5 is a partially enlarged cross-sectional view showing a state when the tube is inserted.
【図６】管引抜き方向に力が作用した状態を示す部分拡
大断面図。FIG. 6 is a partially enlarged cross-sectional view showing a state in which a force acts in a pipe drawing direction.
【図７】バネリング部材の変位形態の説明図。FIG. 7 is an explanatory view of a displacement form of a spring ring member.
【図８】リング部材の変形を許容する構成とした場合の
作用説明図。FIG. 8 is an explanatory view of the operation when the ring member is configured to allow deformation.
【図９】バネリング部材の変形例を使用した実施例を示
す部分断面図。FIG. 9 is a partial cross-sectional view showing an embodiment using a modified spring ring member.
【図１０】実験例を示すグラフ。FIG. 10 is a graph showing an experimental example.
【図１１】従来の技術を示す断面図。FIG. 11 is a sectional view showing a conventional technique.
【図１２】従来のバネリング部材の正面図。FIG. 12 is a front view of a conventional spring ring member.
【図１３】図１２のＡ−Ａ線断面図。13 is a cross-sectional view taken along the line AA of FIG.
１ 継手本体 ２ 接続管 ３ 管挿入部 ４ 接続部 ５ 通路 ６ リング部材 ７ バネリング部材 ８ 抜止め部 ９ 溝 １０ スリット １１，１１… バネ片 １２ 段部 １３ 傾斜面 １４ Ｏリング １５ 傾斜面 Ｐ 切離部 １０ａ 切目 １０ｃ 弱め部 DESCRIPTION OF SYMBOLS 1 Joint body 2 Connection pipe 3 Pipe insertion part 4 Connection part 5 Passage 6 Ring member 7 Spring ring member 8 Detachment prevention part 9 Groove 10 Slit 11, 11 ... Spring piece 12 Step part 13 Inclined surface 14 O-ring 15 Inclined surface P P separation Part 10a Cut 10c Weakened part
Claims (6)
を挿入し得る管挿入部を設け、この管挿入部内の外端近
くの内周に接続管の外周と小許の隙間をもって嵌入し得
るよう接続管の外径に近似する内径を有するリング部材
を抜止めして内嵌するとともに、このリング部材の奥側
にその内側面にそっておかれ接続管挿入時にその接続管
の外周により拡開されるバネリング部材を内嵌し、この
バネルング部材は、その内周から所要深さにわたるスリ
ットを放射方向に等間隔に形成して複数のバネ片を形成
し、前記スリットの一つの内端に切離部を設けたことを
特徴とする管継手。1. A pipe inserting portion into which an end of a connecting pipe to be connected can be inserted is provided at an end of a joint body, and a gap between the outer periphery of the connecting pipe and a small gap is provided on an inner periphery near an outer end in the pipe inserting portion. The ring member having an inner diameter approximating the outer diameter of the connecting pipe is retained so as to be fitted inside, and is fitted inside, and is placed along the inner side surface at the inner side of the ring member when the connecting pipe is inserted. The spring ring member expanded by the outer circumference of the inner ring is fitted inside, and this bunnelling member forms a plurality of spring pieces by forming slits extending from the inner circumference to the required depth at equal intervals in the radial direction. A pipe joint characterized in that a cut-off portion is provided at one inner end.
構成されている請求項１記載の管継手。2. The pipe joint according to claim 1, wherein the cut-off portion is formed by a cut cut from the beginning of the head.
ている請求項１記載の管継手。3. The pipe joint according to claim 1, wherein the cut-off portion is composed of a weakened portion that can be cut off.
る被膜が形成されている請求項１記載の管継手。4. The pipe joint according to claim 1, wherein a coating made of resin or the like is formed on the inner peripheral edge of the spring ring member.
内周にバネリング部材の奥側への変位を許容する傾斜面
が設けられている請求項１または４記載の管継手。5. The pipe joint according to claim 1, wherein an inclined surface that allows the spring ring member to be displaced inward is provided on the inner periphery of the joint main body in which the spring ring member is located.
能に形成されている請求項１または５項記載の管継手。6. The pipe joint according to claim 1, wherein the ring member is formed so as to be deformable when the connecting pipe is pulled back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4454493U JPH0714291U (en) | 1993-08-16 | 1993-08-16 | Pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4454493U JPH0714291U (en) | 1993-08-16 | 1993-08-16 | Pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0714291U true JPH0714291U (en) | 1995-03-10 |
Family
ID=12694454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4454493U Pending JPH0714291U (en) | 1993-08-16 | 1993-08-16 | Pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0714291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004232693A (en) * | 2003-01-29 | 2004-08-19 | Jfe Pipe Fitting Mfg Co Ltd | Spigot type pipe fitting |
| JP2005536690A (en) * | 2002-04-16 | 2005-12-02 | ビタリック カンパニー オブ アメリカ | Mechanical fittings based on standardized installation |
-
1993
- 1993-08-16 JP JP4454493U patent/JPH0714291U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005536690A (en) * | 2002-04-16 | 2005-12-02 | ビタリック カンパニー オブ アメリカ | Mechanical fittings based on standardized installation |
| JP2004232693A (en) * | 2003-01-29 | 2004-08-19 | Jfe Pipe Fitting Mfg Co Ltd | Spigot type pipe fitting |
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