DE2845308A1 - Plastics pipe coupling sleeve - has two collars into which an elastic annular seal with Y-cross=section is firmly fitted - Google Patents
Plastics pipe coupling sleeve - has two collars into which an elastic annular seal with Y-cross=section is firmly fittedInfo
- Publication number
- DE2845308A1 DE2845308A1 DE19782845308 DE2845308A DE2845308A1 DE 2845308 A1 DE2845308 A1 DE 2845308A1 DE 19782845308 DE19782845308 DE 19782845308 DE 2845308 A DE2845308 A DE 2845308A DE 2845308 A1 DE2845308 A1 DE 2845308A1
- Authority
- DE
- Germany
- Prior art keywords
- fitting
- sealing ring
- sleeve
- molded part
- end piece
- 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
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0053—Producing sealings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/563—Gaskets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
- F16L17/03—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
- F16L17/035—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having two lips parallel to each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Joints With Sleeves (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Fitting oder dergleichen aus formstabilem KunststoffFitting or the like made of dimensionally stable plastic
für Rohrverbindungen sowie Verfahren und Werkzeug zu seiner Herstellung Die Erfindung betrifft ein Fitting oder dergleichen aus formstabilem Kunststoff für Rohrverbindungen mit mindestens einem muffenartigen Endstück, in das ein glattes Anschluß-Rohrstück unter Zwischenschaltung eines elastischen Dichtungsringes einschiebbar ist. Sie befaßt sich aber auch mit einem Verfahren und einem Werkzeug zur Herstellung solcher Fittings oder dergleichen.for pipe connections as well as processes and tools for their production The invention relates to a fitting or the like made of dimensionally stable plastic for pipe connections with at least one socket-like end piece into which a smooth Connection pipe section can be inserted with an elastic sealing ring interposed is. But it is also concerned with a method and a tool for manufacturing such fittings or the like.
Fittings oder dergleichen der gattungsgemäßen Art zur Bildung von Rohrverbindungen sind in vielen verschiedenen Ausführungsformen bekanntgeworden.Fittings or the like of the generic type for the formation of Pipe connections have become known in many different embodiments.
So gehört es bspw. durch die DE-OS 24 16 936 zum Stand der Technik, in den Innenumfang des muffenartigen Endstücks des Fittings oder dergleichen eine Umfangsnut zur Aufnahme des elastischen Dichtungsringes einzuformen.For example, it belongs to the state of the art through DE-OS 24 16 936, in the inner circumference of the sleeve-like end piece of the fitting or the like To form the circumferential groove for receiving the elastic sealing ring.
Diese Umfangsnut kann dabei aber entweder nur durch Zuhilfenahme eines komplizierten Formwerkzeuges unmittelbar beim Spritzgießen hergestellt werden, oder aber sie wird durch nachträgliche Verformung oder durch zerspanende Nacharbeit am fertiggespritzten Fitting ausgebildet.This circumferential groove can, however, either only with the aid of a Complicated mold can be produced directly during injection molding, or but it is caused by subsequent deformation or by machining rework on the molded fitting.
Durch die DE-OS 24 18 014 ist es zwar auch schon bekannt, den elastischen Dichtungsring in eine stufenförmige Erweiterung des muffenartigen Endstückes einzusetzen. Zur Lagenfixierung des Dichtungsringes wird dann aber in jedem Falle ein zusätzliches Sicherungselement benötigt, welches über eingeformte Gewindeabschnitte oder sons-ge Hinterschneiduneo mit dem muffenartigen Endstück des Fittings oder dergleichen formschlüssig verbunden werden muß. Auch die Herstellung der Gewindeabschnitte oder sonstigen Hinterschneidungen am Innenumfang des muffenartigen Endstücks macht aber die Verwendung verhältnismäßig komplizier#er Spritzwerkzeuge notwendig.From DE-OS 24 18 014 it is already known, the elastic Insert the sealing ring in a stepped extension of the sleeve-like end piece. To fix the position of the sealing ring is then in any case a additional securing element is required, which is via molded threaded sections or other undercut with the socket-like end piece of the fitting or the like must be positively connected. Also the production of the threaded sections or other undercuts on the inner circumference of the sleeve-like end piece but the use of relatively complicated injection tools is necessary.
s ist Zweck der Erfindung, die sich bei der Herstellung und auch im praktischen Gebraucn der bekannten Fittings oder dergleichen zur Herstellung von Rohrverbindungen ergebenden Unzulänglichkeiten zu beseitigen. Ziel der Erfindung ist es daher einerseits, ein Fitting oder dergleichen der gattungsgemäßen Art so zu gestalten, daß mit besonders einfachen Mitteln eine sichere aktion des Dichtun#sringes zwischen dessen muffenartigem Endstück und dem Anschluß-Rohrstück gewährleistet wird. Andererseits soll aber juch ein Verfahren und ein Werkzeug zur Herstellung solcher Fittings oder dergleichen gefunden werden, mit dessen Hilfe auf einfache Weise eine sichere Wirkverbindung zwischen dem Dichtungsring und dem Fitting gebildet werden kann.s is the purpose of the invention, which relates to the manufacture and also in the practical use of the known fittings or the like for the production of To eliminate pipe connections resulting inadequacies. Object of the invention it is therefore on the one hand a fitting or the like of the generic type to design that with particularly simple means a safe action of the sealing ring guaranteed between its sleeve-like end piece and the connecting pipe section will. On the other hand, there should be a method and a tool for production such fittings or the like can be found with the help of a simple Way a secure operative connection between the sealing ring and the fitting is formed can be.
Ein Fitting oder dergleichen zeichnet sich zur Lösung der gestellten Aufgabe hauptsächlich durch die Kennzeichnungsmerkmale des Anspruchs 1 aus.A fitting or the like is used to solve the problem Task mainly through the characterizing features of claim 1.
Der besondere Vorteil liegt dabei darin, daß der Dicltung,sring im muffenartigen Endstück des Fittings oder dergleichen eine großflächige Anlage sowie in Einschubrichtung des Anschluß-Rohrstückes eine mehrstufige Abstützung erhält, trotzdem aber eine hochelastische Dichtungslippe besitzt.The particular advantage is that the gasket, sring in the sleeve-like end piece of the fitting or the like a large-scale system as well receives a multi-stage support in the direction of insertion of the connecting pipe section, but still has a highly elastic sealing lip.
Eine besonders vorteilhafte Ausgestaltung ergibt sich dabei durch die Benutzung der Merkmale des Anspruchs 3.A particularly advantageous embodiment results from this the use of the features of claim 3.
Wichtig für eine einwandfreie T#irkverbindung zwischen dem Fitting oder dergleichen und dem Anschluß-Rohrstück ist# auch das Merkmal des Anspruchs 3, weil hierdurch das Elnführen des Anschluß-Rohrstücks in das Fitting oder dergleichen wesentlich erleichtert wird.Important for a perfect effective connection between the fitting or the like and the connecting pipe piece is # also the feature of the claim 3, because this results in the insertion of the connecting pipe section into the fitting or the like is made much easier.
Um eine Überbeanspruchung des Dichtungsrings durch das eingeschobene Anschluß-Rohrstück zu vermeiden, hat es sich außerdem als vorteIlhaft erwiesen, das im Anspruch 4 aufgezeigte Merkmal anzuwenden. Dabei ist es besonders dann, wenn in der Rohrleitung unter Druck stehende Medien geführt werden sollen, wichtig, das Merkmal des Anspruchs 5 in Gebrauch zu nehmen.To avoid overstressing the sealing ring from the inserted To avoid connecting pipe section, it has also proven to be advantageous to apply the feature shown in claim 4. It is particularly important when media under pressure are to be carried in the pipeline, it is important that To take the feature of claim 5 into use.
In verfahrenstechnischer Hinsicht zeichnet sich die erfindungsgemäße Problemlösung aus durch die Merkmale des Anspruchs Empfehlenswert sind in diesen Zusammenhang aber auch die Verfahrensmerkmale nach Anspruch 7.From a procedural point of view, the one according to the invention is distinguished Problem solving from through the features of the claim are recommendable in these Context but also the method features according to claim 7.
din Werkzeug zur Durchführung dieses Verfahrens zur Herstellung von Fittings oder dergleichen ist besonders gekennzeichnet durch die Merkmale des Anspruchs 8, während sich vorteilhafte teiterbildungen desselben aufgrund der Anspruchsmerkmale 9 und 10 erreichen lassen.din tool to carry out this process for the production of Fittings or the like is particularly characterized by the features of the claim 8, while advantageous further developments of the same due to the features of the claim Let 9 and 10 reach.
Anhand der Zeichnung soll die Erfindung nunmehr ausführlich eriqutert werden. Es zeigt bzw. zeigen Figur 1 im Längsschnitt eine bevorzugte kusführungsforn eines erfindungsgemäßen Fittings oder dergleichen vor der Herstellung einer Rohrverbindung mit einem zugehörigen Anschluß-Rohrstück, während die Fig.2-4 im axialen Halbschnitt ein Tf'erkzeug zur Herstellung des Fittings oder dergleichen nach Fig. 1 während verschiedener aufeinanderfolgender Verfahrensschritte wiedergeben.The invention will now be discussed in detail with the aid of the drawing will. It shows or show Figure 1 in longitudinal section a preferred shape of the kiss a fitting according to the invention or the like before the production of a pipe connection with an associated connecting pipe section, while Fig.2-4 in an axial half-section a Tf'erkzeug for producing the fitting or the like according to FIG. 1 during different sequential process steps.
In Fig. 1 der Zeichnung ist im Längsschnitt ein Fitting 1 aus formstabilem Kunststoff dargestellt, welches ein muffenartiges Endstück 2 hat, in das zur Bildung einer Rohrverbindung ein Anschlußrohrstück 3, vorzugsweise bis zum eingeformten Anschlag 4 eingeschoben werden kann.In Fig. 1 of the drawing, a fitting 1 made of dimensionally stable is in longitudinal section Plastic shown, which has a sleeve-like end piece 2, in which to form a pipe connection a connecting pipe section 3, preferably up to the molded Stop 4 can be inserted.
Das muffenartige Endstück 2 des Fittings 1 ist an seinem Innenumfang mit zwei sich zum freien Ende stufenförmig erweiternden, zueinander konzentrisch und parallel zur Längsachse verlaufenden Einformungen 5 und 6 versehen.The sleeve-like end piece 2 of the fitting 1 is on its inner circumference with two gradually widening towards the free end, concentric to each other and indentations 5 and 6 extending parallel to the longitudinal axis.
Am Innenumfang des muffenartigen Endstücks 2 ist dabei ein Dichtungsring 7 vorgesehen, der einen im wesentlichen V-förmigen Querschnitt hat. Der Y-Steg 8 liegt dabei in der im Durchmesser kleineren Einformung 5 des muffenartigen Endstücks 2, während der eine Y-Schenkel 9 von der im Durchmesser größeren Einformung 6 des muffenartigen Endstücks 2 aufgenommen ist. Der andere Y-Schenkel 10 steht frei über den Innenumfang des muffenartigen Endstücks 2 vor und weist einen von seiner Wurzel zum freien Ende hin keilförmig verjüngten Querschnitt auf, dergestalt, daß der Dichtungsring 7 sich an seinem Innenumfang in das muffenartige Endstück 2 hinein konisch verengt.On the inner circumference of the sleeve-like end piece 2 there is a sealing ring 7 is provided which has a substantially V-shaped cross section. The Y-bar 8 lies in the indentation 5 of the sleeve-like end piece, which is smaller in diameter 2, while the one Y-leg 9 of the larger diameter indentation 6 of the sleeve-like end piece 2 is added. The other Y-leg 10 protrudes freely the inner periphery of the sleeve-like end piece 2 and has one of its root towards the free end wedge-shaped tapered cross-section, such that the sealing ring 7 narrows conically on its inner circumference into the sleeve-like end piece 2.
Der Ringspalt 11 zwischen den beiden Y-Schenkeln 9 und 10 weist im entspannten Zustand des Dichtungsringes 7 vorzugsweise auf seiner ganzen Tiefe annähernd gleiche Breite auf. Selbstverständlich kann der Ringspalt 11 auch ein anderesQuerschnittsprofil aufweisen, bspw. zu seinem Grund hin sich verjüngen.The annular gap 11 between the two Y-legs 9 and 10 has in the relaxed state of the sealing ring 7 preferably approximately over its entire depth same width. Of course, the annular gap 11 can also have a different cross-sectional profile have, for example. Taper towards its base.
Als besonders zweckmäßig hat es sich erwiesen, wenn der Dichtungsring 7 aus elastisch nachgiebigem Werkstoff, insbesondere Weichkunststoff, einstückig fest mit dem Fitting 1 aus formstabilem Kunststoff verbunden ist.It has proven to be particularly useful if the sealing ring 7 made of elastically flexible material, in particular soft plastic, in one piece is firmly connected to the fitting 1 made of dimensionally stable plastic.
Die Herstellung des Fittings 1 mit dem Dichtungsring 7 erfolgt mit Hilfe des in den Figuren 2 bis 4 dargestellten Werkzeuges durch Spritzgießen aus Kunststoff, und zwar in mehreren aufeinanderfolgenden Verfahrensschritten.The production of the fitting 1 with the sealing ring 7 takes place with Using the tool shown in Figures 2 to 4 by injection molding Plastic, in several successive procedural steps.
Dieses Werkzeug wird im wesentlichen von einer Außenform 12 und einer Kernform 13 gebildet.This tool is essentially of an outer mold 12 and one Core shape 13 is formed.
In die Außenform 12 sind dabei sämtliche Außenkonturen 14 des Fittings 1 sowie ein Teil der Innenkonturen 15 desselben eingearbeitet.All the outer contours 14 of the fitting are in the outer shape 12 1 and part of the inner contours 15 of the same incorporated.
Die Kernform 13 besteht aus zwei konzentrisch ineinander sitzenden Teilen 16 und 17, wobei das äußere Teil 16 entsprechend der Innenkontur des Fittings 1 im Bereich des muffenartigen Endstücks 2 an seinem Außenumfang mit stufenartigen Absätzen 18 und 19 versehen ist.The core form 13 consists of two concentrically seated one inside the other Parts 16 and 17, the outer part 16 corresponding to the inner contour of the fitting 1 in the area of the sleeve-like end piece 2 on its outer circumference with step-like Paragraphs 18 and 19 is provided.
Das innere Teil 17 der Kernform 13 weist eine Umfangseindrehung 20 auf, die in ihrer Querschnittsform dem Y-Schenkel 10 des Dichtungsringes 7 entspricht.The inner part 17 of the core mold 13 has a circumferential recess 20 which corresponds to the Y-leg 10 of the sealing ring 7 in its cross-sectional shape.
In der aus Fig, 2 ersichtlichen Stellung des Werkzeuges wird zunächst, bspw. durch die Angußöffnung 21 formstabil aushärtender Kunststoff in die vorhanden#n Hohlräume zwischen der Außenform 12 und der Kernform 13 eingespritzt.In the position of the tool shown in FIG. 2, initially, For example, plastic hardening dimensionally stable through the sprue opening 21 into the existing # n Injected cavities between the outer mold 12 and the core mold 13.
Nachdem das geschehen ist, werden zunächst die radial durch die Außenform 12 bis gegen das Formteil 16 der Kernform 13 vorgeschobenen Stifte 22 aus dem Endstück 2 herausgezogen und damit öffnungen 23 freigegeben, die vorzugsweise gleichmäßig auf den Umfang verteilt sind. Anschließend wird dann das äußere Formteil 16 in die Stellung nach Fig. 3 gebracht, so daß von der Umfangsnut 20 im inneren Formteil 17 der Kernform 13, dem bereits gespritzten Fitting 1 und den teilweise gezogenen äußeren Formteil 16 ein im Querschnitt Y-förmiger Ringraum freigelegt wird.After that is done, the first will be the radial through the outer shape 12 up against the molded part 16 of the core mold 13 pins 22 from the end piece 2 pulled out and thus released openings 23, which are preferably evenly are distributed over the circumference. Then the outer molded part 16 is then in the Position of Fig. 3 brought so that of the circumferential groove 20 in the inner mold part 17 of the core mold 13, the already injected fitting 1 and the partially drawn outer molded part 16 a cross-sectionally Y-shaped annular space is exposed.
In diesen Ringraum wird sodann durch die Angußöffnung 23a in der Außenform 12, aus der der Stift 22 vollständig entfernt ist, und durch die mit der Angußöffnung 23a korrespondierende öffnung 23 im Endstück 2 formelastisch aushärtender Kunststoff eingespritzt, so daß dieser den im Querschnitt Y-förmigen Hohlraum völlig ausfüllt und sich zugleich mit dem bereits vorher gespritzten Fitting 1 fest verschweißt.In this annular space is then through the gate opening 23a in the outer mold 12, from which the pin 22 is completely removed, and through the one with the gate opening 23a corresponding opening 23 in the end piece 2 of plastic that cures in a form-elastic manner injected, so that this the in cross-section Y-shaped cavity completely fills out and at the same time firmly attaches itself to the fitting 1 that has already been injected beforehand welded.
Sodann wird zuerst das Formteil 16 und danach die Kernform 13 völlig aus der Außenform 12 herausgezogen, wie das die Fig. 4 erkennen läßt.Then first the molded part 16 and then the core shape 13 is completely pulled out of the outer mold 12, as shown in FIG.
Das auf diese Art und Weise fertiggestellte Fitting 1 mit der unmittelbar eingeformten elastischen Dichtung 7 kann sodann, bspw. axial aus der Außenform 12 herausgenommen werden.The fitting 1 completed in this way with the immediately The molded-in elastic seal 7 can then, for example, axially out of the outer shape 12 be taken out.
Der sichere Halt des Dichtungsringes 7 innerhalb des Fittings 1 wird noch dadurch begünstigt, daß zapfenartige Abschnitte 24 der Angüsse radial in die von den Stiften 22 freigegebenen Öffnungen 23 im muffenartigen Endstück 2 hineinragen, wie das den Figuren 1 und 4 zu entnehmen ist.The secure hold of the sealing ring 7 within the fitting 1 is still favored by the fact that pin-like sections 24 of the sprues radially into the Openings 23 released by the pins 22 protrude into the sleeve-like end piece 2, as can be seen from FIGS. 1 and 4.
Das auf diese Art und Weise fertiggestellte Fitting 1 kann sodann, wie das aus Fig. 1 ersichtlich ist, zusammen mit einem Anschluß-Rohrstück 3 zur Herstellung einer Rohrverbindung benutzt werden.The fitting 1 completed in this way can then as can be seen from Fig. 1, together with a connecting pipe section 3 for Manufacture of a pipe connection can be used.
Normalerweise reicht die Elastizität des Dichtungsringes 7 aus, um die beiden Teile der Rohrverbindung gegeneinander abzudichten. Soll die Rohrverbindung jedoch einem höheren Innendruck standhalten, dann ist es zweckmäßig, nach dem axialen Einschieben des Anschluß-Rohrstückes 3 in das Fitting 1 eine das Anschluß-Rohrstück konzentrisch umgebende, an ihrem Innenumfang konische Spannbuchse 25 in den Ringspalt 10 zwischen die beiden Y-Schenkel 9 und 10 des Dichtungsringes 7 einzudrücken. Durch diese Spannbuchse wird dann der freie Y-Schenkel 10 des Dichtungsringes 7 nach radial einwärts verformt und großflächig gegen den Außenumfang des Anschlußrohrstückes gepreßt.Normally, the elasticity of the sealing ring 7 is sufficient to to seal the two parts of the pipe connection against each other. Should the pipe connection but withstand a higher internal pressure, then it is useful after the axial Pushing the connection pipe section 3 into the fitting 1 a the connection pipe section concentrically surrounding, on its inner circumference conical clamping bush 25 into the annular gap 10 between the two Y-legs 9 and 10 of the sealing ring 7. By this clamping bush then becomes the free Y-leg 10 of the sealing ring 7 in a radial direction deformed inward and over a large area against the outer circumference of the connecting pipe section pressed.
Die erfindungsgemäßen Fittings können jede beliebige bekannte Form haben, beispielsweise gerade, als Krümmer oder T-förmig ausgebildet sein.The fittings of the invention can be of any known shape have, for example straight, be designed as a bend or T-shaped.
Claims (10)
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782845308 DE2845308C3 (en) | 1978-10-18 | 1978-10-18 | Fitting or the like made of dimensionally stable plastic for pipe connections and methods and tools for its production |
CH903279A CH643047A5 (en) | 1978-10-18 | 1979-10-08 | Method for producing fittings for pipe connections and tool for exercise of procedure and by this method made fitting. |
NO793248A NO793248L (en) | 1978-10-18 | 1979-10-10 | PROCEDURE AND EQUIPMENT FOR THE PREPARATION OF PIPE CONNECTIONS AND SIMILAR. |
IT26410/79A IT1123805B (en) | 1978-10-18 | 1979-10-11 | PROCEDURE TO PRODUCE CONNECTIONS OR SIMILAR FOR TUBULAR JOINTS, AS WELL AS TOOL TO IMPLEMENT THE PROCEDURE AND CONNECTION OR SIMILAR PRODUCT ACCORDING TO THAT PROCEDURE |
AT0668079A AT378498B (en) | 1978-10-18 | 1979-10-12 | METHOD AND INJECTION MOLD FOR PRODUCING FITTINGS OR THE LIKE. AND FITTING MADE BY THIS PROCESS |
GB7935863A GB2035192B (en) | 1978-10-18 | 1979-10-16 | Method of producing pipe fittings with sealing rings |
JP13302879A JPS5563232A (en) | 1978-10-18 | 1979-10-17 | Pipe joint* preparation of pipe joint and its tool |
SE7908591A SE7908591L (en) | 1978-10-18 | 1979-10-17 | ROD CONNECTING PART OR FITTING AND PROCEDURES AND TOOLS FOR ITS MANUFACTURING |
BR7906682A BR7906682A (en) | 1978-10-18 | 1979-10-17 | PROCESS FOR THE PRODUCTION OF JOINTS OR SIMILAR PIECES, FOR TUBE CONNECTIONS, AS WELL AS TOOL FOR THE PROCESSING OF THE PROCESS, AND JOINTS OR SIMILAR PIECES, PRODUCED UNDER THIS PROCESS |
AU51889/79A AU532018B2 (en) | 1978-10-18 | 1979-10-17 | Pipe socket with sealing ring |
FR7926203A FR2439077A1 (en) | 1978-10-18 | 1979-10-18 | METHOD AND TOOL FOR MANUFACTURING A TUBULAR JOINT IN SYNTHETIC MATERIAL, AND JOINT MANUFACTURED ACCORDING TO THIS METHOD |
NL7907705A NL7907705A (en) | 1978-10-18 | 1979-10-18 | METHOD OF MANUFACTURING FITTINGS OR THE LIKE FOR PIPE CONNECTIONS, AND TOOL FOR CARRYING OUT THAT METHOD AND USING FITTING OR THE LIKE USED THAT METHOD |
US06/269,820 US4410479A (en) | 1978-10-18 | 1981-06-03 | Method of making a molded-joint assembly |
US06/475,848 US4552384A (en) | 1978-10-18 | 1983-03-16 | Molded-joint assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782845308 DE2845308C3 (en) | 1978-10-18 | 1978-10-18 | Fitting or the like made of dimensionally stable plastic for pipe connections and methods and tools for its production |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2845308A1 true DE2845308A1 (en) | 1980-04-24 |
DE2845308B2 DE2845308B2 (en) | 1981-05-27 |
DE2845308C3 DE2845308C3 (en) | 1982-02-18 |
Family
ID=6052463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782845308 Expired DE2845308C3 (en) | 1978-10-18 | 1978-10-18 | Fitting or the like made of dimensionally stable plastic for pipe connections and methods and tools for its production |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5563232A (en) |
DE (1) | DE2845308C3 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0036454A1 (en) * | 1980-03-25 | 1981-09-30 | Hawo B.V. | Method and apparatus for manufacturing a tubular body provided with a sealing ring |
US4552384A (en) * | 1978-10-18 | 1985-11-12 | Battenfeld Maschinenfabriken Gmbh | Molded-joint assembly |
DE3717750A1 (en) * | 1987-05-26 | 1988-12-15 | Rehau Ag & Co | METHOD FOR INJECTING AN ELASTIC SEALING MATERIAL INTO THE RINGNUT OF A CONNECTING SLEEVE |
EP0814028A1 (en) * | 1996-08-30 | 1997-12-29 | Dsm N.V. | Cover for a container with bent top edge |
US5921432A (en) * | 1996-08-30 | 1999-07-13 | Dsm N.V. | Cover for a container with bent top edge |
AU764088B2 (en) * | 1999-02-01 | 2003-08-07 | Caroma Industries Limited | A pipe connection assembly |
EP1600568A1 (en) * | 2004-05-27 | 2005-11-30 | Theodor Cordes GmbH & Co. KG | Ground laid pipeline with protection against plant roots |
EP2039491A1 (en) * | 2007-09-19 | 2009-03-25 | ifm Manfred Otte GmbH | Method of inserting the seal of a connector part |
US11125368B2 (en) * | 2016-12-07 | 2021-09-21 | Novares Us Engine Components, Inc. | Conduit connector and method of construction thereof |
EP3982026A1 (en) * | 2020-10-08 | 2022-04-13 | Poloplast GmbH & Co. KG | Method for increasing the pressure force of a seal |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61189913A (en) * | 1985-02-19 | 1986-08-23 | Riken Corp | Manufacture of pipe joining of synthetic resin |
DE4036361A1 (en) * | 1989-12-30 | 1991-07-04 | Josef Gleixner | Connector for medical transfusions etc. - is made of plastics by injection moulding in two stages using rigid polypropylene for 1st and elastomer in 2nd to shrink on in situ |
AT401402B (en) * | 1994-11-15 | 1996-09-25 | Hutterer & Lechner Kg | CONCEALED SOAP |
AT536U1 (en) * | 1994-11-15 | 1995-12-27 | Hutterer & Lechner Kg | CONCEALED SOAP |
DE29819537U1 (en) | 1998-11-02 | 1999-01-14 | Sanitärtechnik Eisenberg GmbH, 07607 Eisenberg | Pipe connector |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7221985U (en) * | 1972-11-23 | Societe Trefimetaux | Device for the non-stick connection of pipes made of plastic material | |
DE2052055B2 (en) * | 1969-11-26 | 1974-09-05 | Ludwig Engel Kg, Schwertberg (Oesterreich) | Injection mold for the production of at least two-colored molded bodies |
DE7407979U (en) * | 1974-03-07 | 1975-11-27 | Kunststoffwerk Gebrueder Anger Gmbh & Co | FITTING OR THE SAME |
DE2804645A1 (en) * | 1977-02-04 | 1978-08-10 | Hepworth Iron Co Ltd | PIPE COUPLING |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1572099A (en) * | 1976-04-06 | 1980-07-23 | Hepworth Iron Co Ltd | Manufacture of pipe couplings |
-
1978
- 1978-10-18 DE DE19782845308 patent/DE2845308C3/en not_active Expired
-
1979
- 1979-10-17 JP JP13302879A patent/JPS5563232A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7221985U (en) * | 1972-11-23 | Societe Trefimetaux | Device for the non-stick connection of pipes made of plastic material | |
DE2052055B2 (en) * | 1969-11-26 | 1974-09-05 | Ludwig Engel Kg, Schwertberg (Oesterreich) | Injection mold for the production of at least two-colored molded bodies |
DE7407979U (en) * | 1974-03-07 | 1975-11-27 | Kunststoffwerk Gebrueder Anger Gmbh & Co | FITTING OR THE SAME |
DE2804645A1 (en) * | 1977-02-04 | 1978-08-10 | Hepworth Iron Co Ltd | PIPE COUPLING |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4552384A (en) * | 1978-10-18 | 1985-11-12 | Battenfeld Maschinenfabriken Gmbh | Molded-joint assembly |
EP0036454A1 (en) * | 1980-03-25 | 1981-09-30 | Hawo B.V. | Method and apparatus for manufacturing a tubular body provided with a sealing ring |
DE3717750A1 (en) * | 1987-05-26 | 1988-12-15 | Rehau Ag & Co | METHOD FOR INJECTING AN ELASTIC SEALING MATERIAL INTO THE RINGNUT OF A CONNECTING SLEEVE |
EP0814028A1 (en) * | 1996-08-30 | 1997-12-29 | Dsm N.V. | Cover for a container with bent top edge |
US5921432A (en) * | 1996-08-30 | 1999-07-13 | Dsm N.V. | Cover for a container with bent top edge |
AU764088B2 (en) * | 1999-02-01 | 2003-08-07 | Caroma Industries Limited | A pipe connection assembly |
EP1600568A1 (en) * | 2004-05-27 | 2005-11-30 | Theodor Cordes GmbH & Co. KG | Ground laid pipeline with protection against plant roots |
EP2039491A1 (en) * | 2007-09-19 | 2009-03-25 | ifm Manfred Otte GmbH | Method of inserting the seal of a connector part |
WO2009036945A1 (en) | 2007-09-19 | 2009-03-26 | Ifw Manfred Otte Gmbh | Method for the introduction of a seal into a plug connector part |
RU2482964C2 (en) * | 2007-09-19 | 2013-05-27 | Ифв Манфред Отте Гмбх | Method of fitting seal in plug-in connector |
US11125368B2 (en) * | 2016-12-07 | 2021-09-21 | Novares Us Engine Components, Inc. | Conduit connector and method of construction thereof |
EP3982026A1 (en) * | 2020-10-08 | 2022-04-13 | Poloplast GmbH & Co. KG | Method for increasing the pressure force of a seal |
DE102020126338A1 (en) | 2020-10-08 | 2022-04-14 | Poloplast Gmbh & Co Kg | Process for increasing the contact pressure of a seal |
Also Published As
Publication number | Publication date |
---|---|
JPS5563232A (en) | 1980-05-13 |
DE2845308B2 (en) | 1981-05-27 |
DE2845308C3 (en) | 1982-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
C3 | Grant after two publication steps (3rd publication) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: BATTENFELD GMBH, 5882 MEINERZHAGEN, DE |
|
8339 | Ceased/non-payment of the annual fee |