AT348836B - PIPE CONNECTION FOR PIPES AND FITTINGS MADE OF PLASTIC - Google Patents

PIPE CONNECTION FOR PIPES AND FITTINGS MADE OF PLASTIC

Info

Publication number
AT348836B
AT348836B AT192377A AT192377A AT348836B AT 348836 B AT348836 B AT 348836B AT 192377 A AT192377 A AT 192377A AT 192377 A AT192377 A AT 192377A AT 348836 B AT348836 B AT 348836B
Authority
AT
Austria
Prior art keywords
plastic
pipes
section
ring
annular groove
Prior art date
Application number
AT192377A
Other languages
German (de)
Other versions
ATA192377A (en
Original Assignee
Anger Anton Maschbau
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 Anger Anton Maschbau filed Critical Anger Anton Maschbau
Priority to AT192377A priority Critical patent/AT348836B/en
Publication of ATA192377A publication Critical patent/ATA192377A/en
Application granted granted Critical
Publication of AT348836B publication Critical patent/AT348836B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/18Adjustable joints; Joints allowing movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06Connecting 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
    • F16L47/08Connecting 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

  

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 Querschnitt der   Ringrille --5-- angepasst   ist, so dass er unter elastischer Verformung in die Ringrille - eingerastet wird und dann im Passsitz in diese eingreift. 



   Die Dichtung weist, vom Dichtungsring --6-- ausgehend eine   Dichtlippe --7u auf,   die sich beim Einführen des Rohrendes --2-- in Richtung auf das   Muffeninnere   zu umlegt und dieses Rohrende würgend und abdichtend umschliesst. Beim Ausführungsbeispiel ist die Dicke dieser Dichtlippe --7-- kleiner als das Spiel --8-- zwischen Rohrende --2-- und Muffe --4--, so dass die   Dichtlippe --7-- aussen   von einem in der Rohrleitung herrschenden Überdruck beaufschlagt und dadurch fester gegen das   Rohrende --2-- gedrückt   werden kann. 



   Die Ringrille --5-- ist in einem mit der   Muffe --4-- einstückigen   Bereich ausgeformt. Fig. 2 zeigt, dass der Fitting-l-mit der   Muffe-4-in einem Spritzgussvorgang   hergestellt und dabei gleich die Ringrille --5-mit hinterschnitten verlaufenden Flanken   --9, 10-- geformt   wird, wobei der die Ringrille ausbildende Teil des Formkernes starr mit dem Formkern verbunden ist und unter Ausnutzung der thermoplastischen Verformbarkeit unter Aufweitung des Muffenendes herausgezogen werden kann, wobei das Muffenende dann durch das thermoplastische Rückstellungsvermögen in die ursprüngliche, dargestellte Form zurückkehrt.



   <Desc / Clms Page number 1>
 
 EMI1.1
 

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 Cross-section of the ring groove --5-- is adapted so that it is snapped into the ring groove under elastic deformation and then engages in a snug fit.



   The seal has, starting from the sealing ring --6--, a sealing lip --7u which, when the pipe end --2-- is inserted, folds towards the inside of the socket and surrounds this pipe end in a choking and sealing manner. In the exemplary embodiment, the thickness of this sealing lip --7-- is smaller than the clearance --8-- between the pipe end --2-- and socket --4--, so that the sealing lip --7-- is on the outside of one of the Overpressure prevailing in the pipeline and thus pressed more firmly against the pipe end --2--.



   The ring groove --5-- is formed in a one-piece area with the socket --4--. Fig. 2 shows that the fitting-1-with the socket-4-is produced in an injection molding process and at the same time the ring groove -5-is formed with undercut flanks -9, 10-, the part forming the ring groove of the mold core is rigidly connected to the mold core and, taking advantage of the thermoplastic deformability, can be pulled out with the expansion of the socket end, the socket end then returning to the original, illustrated shape due to the thermoplastic resilience.

 

Claims (1)

PATENTANSPRUCH : Rohrverbindung für Rohre und Fittings aus Kunststoff, insbesondere thermoplastischem Kunststoff, bei der ein Rohrende mit radialem Spiel in eine einteilige Muffe eingreift, die ihrerseits eine Ringrille besitzt, in der eine wenigstens eine ins Innere der Muffe umlegbare und das Rohrende würgend umschliessende Dichtlippe, deren Dicke vorzugsweise kleiner als das Spiel zwischen Muffe und Rohr gewählt ist, aufweisende Dichtung mit einem Ring gehalten ist, d a d u r c h g e k e n n z e i c h - n e t, dass die Ringrille (5) einen wenigstens an der gegen das anschliessende Muffenende (9) weisenden Seite, vorzugsweise aber beidseitig hinterschnittenen Querschnitt besitzt und der Dichtungsring in seinem Querschnitt dem Querschnitt der Ringrille (5) angepasst ist, PATENT CLAIM: Pipe connection for pipes and fittings made of plastic, in particular thermoplastic plastic, in which one pipe end engages with radial play in a one-piece sleeve, which in turn has an annular groove in which at least one sealing lip which can be folded into the interior of the sleeve and encircles the pipe end in a choking manner, whose thickness is preferably smaller than the clearance between the socket and the pipe, the seal is held by a ring, characterized in that the annular groove (5) has an undercut cross section at least on the side facing the adjoining socket end (9), but preferably on both sides and the cross section of the sealing ring is adapted to the cross section of the annular groove (5), wobei der Dichtungsring unter elastischer Verformung in die Ringrille eingerastet wird. wherein the sealing ring is snapped into the ring groove with elastic deformation.
AT192377A 1977-03-21 1977-03-21 PIPE CONNECTION FOR PIPES AND FITTINGS MADE OF PLASTIC AT348836B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT192377A AT348836B (en) 1977-03-21 1977-03-21 PIPE CONNECTION FOR PIPES AND FITTINGS MADE OF PLASTIC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT192377A AT348836B (en) 1977-03-21 1977-03-21 PIPE CONNECTION FOR PIPES AND FITTINGS MADE OF PLASTIC

Publications (2)

Publication Number Publication Date
ATA192377A ATA192377A (en) 1978-07-15
AT348836B true AT348836B (en) 1979-03-12

Family

ID=3523943

Family Applications (1)

Application Number Title Priority Date Filing Date
AT192377A AT348836B (en) 1977-03-21 1977-03-21 PIPE CONNECTION FOR PIPES AND FITTINGS MADE OF PLASTIC

Country Status (1)

Country Link
AT (1) AT348836B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068577A1 (en) * 1981-06-22 1983-01-05 Dirk Van Manen A method of making socketed pipe-fittings of synthetic plastics material by injection moulding, apparatus for carrying out said method, and fitting produced by the method
FR2528534A1 (en) * 1982-06-14 1983-12-16 Polva Nederland Bv Thermoplastic pipe joint socket with captive elastomeric seal - made by reforming sec. socket flare to secure the seal
EP0488064A1 (en) * 1990-11-29 1992-06-03 Richard Vetter Process for heating a building.
WO1993007416A1 (en) * 1991-10-05 1993-04-15 Baxter, Woodhouse & Taylor Ltd. Fluid flow connections

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068577A1 (en) * 1981-06-22 1983-01-05 Dirk Van Manen A method of making socketed pipe-fittings of synthetic plastics material by injection moulding, apparatus for carrying out said method, and fitting produced by the method
FR2528534A1 (en) * 1982-06-14 1983-12-16 Polva Nederland Bv Thermoplastic pipe joint socket with captive elastomeric seal - made by reforming sec. socket flare to secure the seal
EP0488064A1 (en) * 1990-11-29 1992-06-03 Richard Vetter Process for heating a building.
WO1993007416A1 (en) * 1991-10-05 1993-04-15 Baxter, Woodhouse & Taylor Ltd. Fluid flow connections

Also Published As

Publication number Publication date
ATA192377A (en) 1978-07-15

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee
UEP Publication of translation of european patent specification