DE9105824U1 - Plastic-coated, metal connecting sleeve - Google Patents

Plastic-coated, metal connecting sleeve

Info

Publication number
DE9105824U1
DE9105824U1 DE9105824U DE9105824U DE9105824U1 DE 9105824 U1 DE9105824 U1 DE 9105824U1 DE 9105824 U DE9105824 U DE 9105824U DE 9105824 U DE9105824 U DE 9105824U DE 9105824 U1 DE9105824 U1 DE 9105824U1
Authority
DE
Germany
Prior art keywords
connecting sleeve
plastic
sealing grooves
sleeve
coated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE9105824U
Other languages
German (de)
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.)
KARL RAFELD KG SPRITZGUSSWERK ELEKTRONIK und FORMENBAU 8954 BIESSENHOFEN DE
Original Assignee
KARL RAFELD KG SPRITZGUSSWERK ELEKTRONIK und FORMENBAU 8954 BIESSENHOFEN DE
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 KARL RAFELD KG SPRITZGUSSWERK ELEKTRONIK und FORMENBAU 8954 BIESSENHOFEN DE filed Critical KARL RAFELD KG SPRITZGUSSWERK ELEKTRONIK und FORMENBAU 8954 BIESSENHOFEN DE
Priority to DE9105824U priority Critical patent/DE9105824U1/en
Publication of DE9105824U1 publication Critical patent/DE9105824U1/en
Priority to AT93113909T priority patent/ATE134261T1/en
Priority to ES91115490T priority patent/ES2067111T3/en
Priority to EP19910115490 priority patent/EP0485706B1/en
Priority to AT93113908T priority patent/ATE139024T1/en
Priority to EP19930113909 priority patent/EP0576041B1/en
Priority to EP19930113907 priority patent/EP0578283A1/en
Priority to EP19930113906 priority patent/EP0578282A1/en
Priority to DE59103894T priority patent/DE59103894D1/en
Priority to EP19930113908 priority patent/EP0579270B1/en
Priority to AT91115490T priority patent/ATE115704T1/en
Priority to DE59107413T priority patent/DE59107413D1/en
Priority to DE59107906T priority patent/DE59107906D1/en
Priority to CA002054669A priority patent/CA2054669A1/en
Priority to US07/792,316 priority patent/US5286001A/en
Priority to US08/089,718 priority patent/US5341843A/en
Priority to GR950400524T priority patent/GR3015364T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0009—In a two pipe system
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/682—Preformed parts characterised by their structure, e.g. form
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • 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
    • F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
    • F16L47/24—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Composite Materials (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Description

KERN, BREHM & PARTNERKERN, BREHM & PARTNER

Albert-RoBhaupter-Str. 73 ■ D-8000 München 70 ■ Telefon (0 89) 7 60 55 20 / 7 60 55 26 ■ Telecopy (0 89) 7 60 55 59 - Telex 5 214 950 isar dAlbert-RoBhaupter-Str. 73 ■ D-8000 Munich 70 ■ Telephone (0 89) 7 60 55 20 / 7 60 55 26 ■ Telecopy (0 89) 7 60 55 59 - Telex 5 214 950 isar d

Cera-8203/GMCera-8203/GM

Ke/BaKe/Ba

10. Mai 199110 May 1991

Karl Rafeld KGKarl Rafeld KG

Spritzgußwerk, Elektronik undInjection molding, electronics and

FormenbauMould making

Kirnachstr. 15 - 18Kirnachstrasse 15 - 18

D-8954 Biessenhofen-EbenhofenD-8954 Biessenhofen-Ebenhofen

Kunststoffummantelte, metallene VerbindungsmuffePlastic-coated, metal connecting sleeve

Die Erfindung betrifft eine kunststoffummantelte, metallene Verbindungsmuffe zum Verbinden von Kunststoffrohren für flüssige Medien mit Armaturen aus metallischen Werkstoffen, insbesondere für den Sanitär- und Heizungsbereich, wobei das eine Muffenende eine abgesetzte Bohrung zum Einschweißen eines Kunststoffrohres und das andere Muffenende eine eingespritzte metallene Anschlußhülse mit einem Gewinde zum Aufschrauben einer Armatur aufweist und wenigstens eine Verdrehsicherung auf der äußeren Oberfläche der Stirnseite der Anschlußmuffe vorgesehen ist sowie sich um die äußere zylindrische Oberfläche der Anschlußmuffe erstreckende parallele Dichtungsnuten.The invention relates to a plastic-coated, metal connecting sleeve for connecting plastic pipes for liquid media with fittings made of metallic materials, in particular for the sanitary and heating sector, wherein one sleeve end has a stepped bore for welding in a plastic pipe and the other sleeve end has an injected metal connecting sleeve with a thread for screwing on a fitting and at least one anti-twist device is provided on the outer surface of the front side of the connecting sleeve and parallel sealing grooves extending around the outer cylindrical surface of the connecting sleeve.

Derartige Verbindungsmuffen, die auch als Unterputzmuffen verwendet werden, sind Fittings zum Anschluß von Armaturen an aus Kunststoffrohr bestehende Wasserleitungen, beispielsweise von Wasserhähnen. Zu diesemSuch connecting sleeves, which are also used as flush-mounted sleeves, are fittings for connecting fittings to water pipes made of plastic pipes, for example faucets.

9iö?9io?

Zweck wird die Armatur entweder in die Muffe eingeschraubt oder auf sie aufgeschraubt, weshalb die Muffe auf ihrer dem Schraubende entgegengesetzten Stirnseite normalerweise mit einer Verdrehsicherung ausgestattet ist, die verhindert, daß sich die Muffe während des Auf- und Abschraubens der Armatur innerhalb des sie umgebenden Kunststoffmantels dreht, der durch Aufspritzen bzw. Aufgießen auf die metallene Muffe aufgebracht und mit deren Oberfläche fest verbunden worden ist.For this purpose, the fitting is either screwed into the socket or screwed onto it, which is why the socket is normally equipped with an anti-twist device on the end opposite the screw end, which prevents the socket from rotating within the surrounding plastic sheath when the fitting is screwed on and off, which is applied to the metal socket by spraying or pouring and is firmly bonded to its surface.

Für die Dichtigkeit und damit Betriebssicherheit derartiger Muffenverbindungen ist entscheidend, daß die Verbindungen zwischen dem aufgespritzen bzw. aufgegossenen Kunststoff und der metallenen Hülsenoberfläche so beschaffen ist, daß die durch die Muffe hindurch zu transportierende Flüssigkeit nicht außerhalb auf der metallenen Anschlußhülse vorbeiströmt, daß sich also zwischen dem Kunststoff, beispielsweise Polypropylen, und dem Metall keine Kriechströme bilden können, die in den Fällen, in denen die Verbindungsmuffe unterputz verlegt wird, zu einer Durchfeuchtung des sie umgebenden Mauerwerks führen würden.For the tightness and thus operational safety of such socket connections, it is crucial that the connections between the sprayed or cast plastic and the metal sleeve surface are designed in such a way that the liquid to be transported through the socket does not flow past the outside of the metal connection sleeve, so that no leakage currents can form between the plastic, for example polypropylene, and the metal, which in cases where the connection socket is installed under plaster would lead to moisture in the surrounding masonry.

Zur Vermeidung von derartigen Flüssigkeitskriechströmen ist es daher bekannt (Gbm 87 16 394), einen Teil der äußeren Oberfläche der metallenen Anschlußhülse mit Rillen oder Nuten quadratischen oder rechteckigen Querschnitts zu versehen, in die der Kunststoff beim Aufgießen oder Aufspritzen eintritt und auf diese Weise das Entstehen von Kriechströmen verhindern soll.In order to avoid such liquid leakage currents, it is therefore known (Gbm 87 16 394) to provide part of the outer surface of the metal connecting sleeve with grooves or slots of square or rectangular cross-section, into which the plastic enters when poured or sprayed on and in this way prevents the formation of leakage currents.

Es hat sich nun aber gezeigt, daß, bedingt durch die beim Aufspritzen bzw. Aufgießen des Kunststoffs entstehenden SchrumpfSpannungen der Kunststoff, der ursprünglich die genannten Dichtungsnuten voll ausgefülltHowever, it has now been shown that, due to the shrinkage stresses that arise when the plastic is sprayed or poured on, the plastic that originally completely filled the sealing grooves mentioned above

hat, sich insbesondere vom Nutboden wieder abhebt und sich teilweise auch von den Nutwänden löst, wodurch Hohlräume entstehen, durch die die unerwünschten Flüssigkeitskriechströme wandern können.has lifted off again, particularly from the groove floor and partially from the groove walls, creating cavities through which the undesirable liquid leakage currents can migrate.

Die Aufgabe der Erfindung besteht deshalb darin, die Dichtungsnuten so auszubilden, daß trotz bestehender Schrumpfspannungen eine absolute Dichtigkeit zwischen dem aufgespritzten bzw. aufgegossenen Kunststoffmaterial und der metallenen Oberfläche der Anschlußhülse auch dann gewährleistet ist, wenn der Kunststoff ausgehärtet und damit geschrumpft ist.The object of the invention is therefore to design the sealing grooves in such a way that, despite existing shrinkage stresses, an absolute seal between the sprayed or cast plastic material and the metal surface of the connecting sleeve is ensured even when the plastic has hardened and thus shrunk.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Dichtungsnuten einen konischen oder V-förmigen Querschnitt aufweisen.This object is achieved according to the invention in that the sealing grooves have a conical or V-shaped cross-section.

Erfindungsgemäß wird somit anstelle des bekannten rechteckigen Querschnitts der Dichtungsnuten ein konischer bzw. V-förmiger Querschnitt gewählt, der dazu führt, daß die der Schrumpfung unterworfene Kunststoffmasse im Bereich des Nutbodens relativ klein ist, so daß sich die Schrumpfspannungen nicht in der Weise auswirken können, wie bei einer größeren Masse, die bei Verwendung von rechteckigen oder quadratischen Nutquerschnitten zwangsläufig ist.According to the invention, instead of the known rectangular cross-section of the sealing grooves, a conical or V-shaped cross-section is chosen, which means that the plastic mass subject to shrinkage in the area of the groove bottom is relatively small, so that the shrinkage stresses cannot have the same effect as with a larger mass, which is inevitable when using rectangular or square groove cross-sections.

Vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous embodiments of the invention can be found in the subclaims.

Die Erfindung wird nachfolgend anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert. In der Zeichnung zeigen:The invention is explained in more detail below using the embodiments shown in the drawing. In the drawing:

Fig. 1 eine teilweise längsgeschnittene metallene Anschlußhülse ohne aufgespritzen Kunststoffmantel,Fig. 1 a partially longitudinally cut metal connection sleeve without sprayed-on plastic sheath,

-A--A-

Fig. 2 eine Stirnansicht des hinteren Endes der Anschlußhülse von Fig. 1 in Richtung der Pfeile A-A,Fig. 2 is a front view of the rear end of the connecting sleeve of Fig. 1 in the direction of arrows A-A,

Fig. 3 eine vergrößerte geschnittene Detailansicht des die Dichtungsnuten enthaltenden geschnittenenFig. 3 is an enlarged sectional detail view of the section containing the sealing grooves

Teils der Anschlußhülse von Fig. 1,Part of the connecting sleeve of Fig. 1,

Fig. 4 eine teilweise geschnittene Seitenansicht einer mit einem Außengewinde versehenen Anschlußhülse, 10Fig. 4 is a partially sectioned side view of a connecting sleeve provided with an external thread, 10

Fig. 5 eine Stirnansicht des hinteren Endes der Anschlußhülse von Fig. 4 in Richtung der Pfeile A-A undFig. 5 is a front view of the rear end of the connecting sleeve of Fig. 4 in the direction of arrows A-A and

Fig. 6 eine vergrößerte Detailansicht des die Dichtungsnuten enthaltenden Teils der Anschlußhülse vonFig. 6 is an enlarged detailed view of the part of the connecting sleeve containing the sealing grooves of

Fig. 4.Fig.4.

Die in den Figuren 1-3 dargestellte metallene Anschlußhülse 1 ist mit einem Innengewinde 4 versehen, in das eine Armatur, beispielsweise ein Wasserhahn,eingeschraubt werden kann. Der zu ihrem hinteren Ende gelegene Teil ihres zylindrischen ümfangs 9 weist parallele Dichtungsnuten 8 V-förmigen Querschnitts auf, die eng nebeneinanderliegen und einen öffnungswinkel C^ (Fig. 3) von 55° aufweisen, der sich für die äußere Abdichtung dieser Hülse gegen Flüssigkeitskriechströme als besonders geeignet erwiesen hat. Dies ist darauf zurückzuführen, daß der zur Herstellung der Verbindungsmuffe auf die metallene Anschlußhülse aufzugießende bzw. aufzuspritzende Kunststoff, beispielsweise Polypropylen, in die Dichtungsnuten eindringt und beim Aushärten schrumpft. Die dabei entstehenden Schrumpfspannungen sind aber im Bereich des Bodens 10 jeder V-förmigen Dichtungsnut 8 verhältnismäßig klein, weil aufgrund des V-förmigen oder konischen Zuschnitts sich am Nutboden eine vergleichsweise geringeThe metal connecting sleeve 1 shown in Figures 1-3 is provided with an internal thread 4 into which a fitting, for example a water tap, can be screwed. The part of its cylindrical circumference 9 located towards its rear end has parallel sealing grooves 8 with a V-shaped cross-section, which lie close together and have an opening angle C^ (Fig. 3) of 55°, which has proven to be particularly suitable for the external sealing of this sleeve against liquid leakage currents. This is due to the fact that the plastic, for example polypropylene, which is poured or sprayed onto the metal connecting sleeve to produce the connecting sleeve, penetrates into the sealing grooves and shrinks when it hardens. The resulting shrinkage stresses are, however, relatively small in the area of the bottom 10 of each V-shaped sealing groove 8, because due to the V-shaped or conical cut, a comparatively small

3 iO3 OK

Kunststoffmaterialmenge befindet, die zwar auch den Schrumpfspannungen unterworfen ist, jedoch aufgrund der geringen Masse zu einer vernachlässigbaren geringen Schrumpfung des Kunststoffmaterials führt, weshalb die Nuten beim Schrumpfen des Kunststoffs im wesentlichen gefüllt bleiben und damit ihre Dichtungsfunktion erfüllen können, d.h. kriechenden Flüssigkeitsströmen, die aus der Durchgangsbohrung 2 über die hintere Stirnseite 6 der Anschlußmuffe austreten und über die äußere Oberfläche der Anschlußhülse in Richtung zum vorderen Hülsenende strömen wollen, blockieren.Amount of plastic material is located there, which is also subject to shrinkage stresses, but due to the low mass leads to a negligible shrinkage of the plastic material, which is why the grooves remain essentially filled when the plastic shrinks and can therefore fulfil their sealing function, i.e. block creeping liquid flows that emerge from the through hole 2 via the rear end face 6 of the connection sleeve and want to flow over the outer surface of the connection sleeve in the direction of the front sleeve end.

Die hintere Stirnseite 6 der Anschlußhülse 1 ist in an sich bekannter Weise mit Schlitzen 7 versehen, in die ebenfalls der Kunststoff eindringt, um auf diese Weise die Anschlußhülse innerhalb der Kunststoffmasse gegen Verdrehen zu sichern. Insofern bilden die Schlitze eine Drehsicherung. Die Verdrehkräfte werden dadurch verursacht, daß entweder über das Innengewinde 4 oder bei der Ausführungsform nach Figur 4 über das Außengewinde 5 beim Ein- und Ausschrauben bzw. Auf- und Abschrauben in die Anschlußhülse Drehkräfte eingeleitet werden, die von ihr,bevor sie an den die Verbindungsmuffe bei Unterputzanordnung umgebenden Mörtel weitergeleitet werden, zunächst auf den sie umgebenden Kunststoffmaterialmantel übertragen werden müssen. Dies geschieht mit Hilfe der durch die Schlitze 7 bewirkten formschlüssigen Verbindung zwischen der metallenen Anschlußhülse und dem Kunststoffmaterial.The rear end face 6 of the connecting sleeve 1 is provided in a known manner with slots 7, into which the plastic also penetrates in order to secure the connecting sleeve against twisting within the plastic mass. In this respect, the slots form a rotation lock. The twisting forces are caused by the fact that when screwing in and out or screwing on and off, either via the internal thread 4 or, in the embodiment according to Figure 4, via the external thread 5, twisting forces are introduced into the connecting sleeve, which must first be transferred to the surrounding plastic material casing before they are passed on to the mortar surrounding the connecting sleeve when it is installed flush. This is done with the help of the positive connection between the metal connecting sleeve and the plastic material caused by the slots 7.

Zusätzlich zu der Drehsicherung zwischen Anschlußhülse und Kunststoffmaterial ist auch eine feste Verbindung zwischen den beiden genannten Teilen bzw. Materialien in Form der am hinteren Ende der Anschlußhülse 3 vorhandenen, sich über den Außenumfang erstreckenden Ring-In addition to the anti-rotation lock between the connecting sleeve and the plastic material, there is also a firm connection between the two parts or materials mentioned in the form of the ring at the rear end of the connecting sleeve 3, extending over the outer circumference.

nut 11 vorgesehen, in die wie bei den Dichtungsnuten das Kunststoffmaterial beim Aufspritz- bzw. Aufgießvorgang ebenfalls eindringt.groove 11 is provided, into which, as with the sealing grooves, the plastic material also penetrates during the injection or pouring process.

Die in den Figuren 4-6 dargestellte Ausführungsform der Verbindungsmuffe unterscheidet sich von der Verbindungsmuffe gemäß den Figuren 1 - 3 im wesentlichen nur darin, daß im ersten Fall die Armatur mit Hilfe eines Innengewindes 4 in der Muffe befestigt wird, während im zweiten Fall zur Befestigung der Armatur ein Außengewinde 5 dient, das eine entsprechende Verlängerung der Anschlußhülse verlangt. Deshalb gelten die in den Figuren 1-3 verwendeten Bezugszeichen auch entsprechend für die Figuren 4 -The embodiment of the connecting sleeve shown in Figures 4-6 differs from the connecting sleeve according to Figures 1 - 3 essentially only in that in the first case the fitting is fastened in the sleeve using an internal thread 4, while in the second case an external thread 5 is used to fasten the fitting, which requires a corresponding extension of the connecting sleeve. Therefore, the reference numerals used in Figures 1-3 also apply accordingly to Figures 4 -

^; 8 &ugr; \ &Lgr;.^; 8 &ugr; \ &Lgr;.

Claims (6)

KERN3 BREHM & PARTNERKERN 3 BREHM & PARTNER Albert-Roßhaupter-Str. 73 ■ D-8000 München 70 - Telefon /Q fr9) 7 6ü 5-5 20 / 7 60 55 26 ■ Tdecoay (Q 89) 7 60 55 59 ■ Telex 5 214 950 isar d Albert-Roßhaupter-Str. 73 ■ D-8000 Munich 70 - Telephone /Q fr9) 7 6ü 5-5 20 / 7 60 55 26 ■ Tdecoay (Q 89) 7 60 55 59 ■ Telex 5 214 950 isar d Cera-8203/GMCera-8203/GM Ke/BaKe/Ba 10. Mai 199110 May 1991 Karl Rafeld KGKarl Rafeld KG Spritzgußwerk, Elektronik undInjection molding, electronics and FormenbauMould making Kirnachstr. 15 - 18Kirnachstrasse 15 - 18 D-8954 Biessenhofen-EbenhofenD-8954 Biessenhofen-Ebenhofen Kunststoffummantelte, metallene VerbindungsmuffePlastic-coated, metal connecting sleeve ANSPRÜCHEEXPECTATIONS 1. Kunststoffummantelte, metallene Verbindungsmuffe zum Verbinden von Kunststoffrohren für flüssige Medien mit Armaturen aus metallischen Werkstoffen, insbesondere für den Sanitär- und Heizungsbereich, wobei das eine Muffenende eine abgesetzte Bohrung zum Einschweißen eines Kunststoffrohres und das andere Muffenende eine eingespritzte metallene Anschlußhülse mit einem Gewinde zum Aufschrauben einer Armtur aufweist und wenigstens eine Verdrehsicherung auf der äußeren Oberfläche der Stirnseite der Anschlußmuffe vorgesehen ist sowie sich um die äußere zylindrische Oberfläche der Anschlußmuffe erstreckende parallele Dichtungsnuten, dadurch gekennzeichnet , daß die Dichtungsnuten (8) einen konischen oder V-förmigen Querschnitt aufweisen.1. Plastic-coated, metal connecting sleeve for connecting plastic pipes for liquid media to fittings made of metallic materials, in particular for the sanitary and heating sector, wherein one sleeve end has a stepped bore for welding in a plastic pipe and the other sleeve end has an injected metal connecting sleeve with a thread for screwing on a fitting and at least one anti-twist device is provided on the outer surface of the front side of the connecting sleeve and parallel sealing grooves extending around the outer cylindrical surface of the connecting sleeve, characterized in that the sealing grooves (8) have a conical or V-shaped cross section. <SJr &Lgr; U C 7 <SJr ΛUC 7 _ 9 &mdash;_ 9 &mdash; 2. Verbindungsmuffe nach Anspruch 1, dadurch gekennzeichnet , daß die beiden V-förmig aufeinander zulaufenden Wände der Dichtungsnuten einen Winkel zwischen 30 und 70° einschließen.2. Connecting sleeve according to claim 1, characterized in that the two V-shaped walls of the sealing grooves converge at an angle of between 30 and 70°. 3. Verbindungsmuffe nach Anspruch 2, dadurch gekennzeichnet , daß der von den Nutwänden eingeschlossene Winkel 55° beträgt.3. Connecting sleeve according to claim 2, characterized in that the angle enclosed by the groove walls is 55°. 4. Verbindungsmuffe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet , daß sich die Dichtungsnuten (8) durchgehend um den gesamten Umfang der zylindrischen Oberfläche (9) der Hülse erstrecken.4. Connecting sleeve according to one of claims 1 to 3, characterized in that the sealing grooves (8) extend continuously around the entire circumference of the cylindrical surface (9) of the sleeve. 5. Verbindungsmuffe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet , daß die Dichtungsnuten (8) den gleichen Querschnitt haben. 5. Connecting sleeve according to one of claims 1 to 4, characterized in that the sealing grooves (8) have the same cross-section. 6. Verbindungsmuffe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , daß der mit den Dichtungsnuten (8) versehene Teil der Umfangsoberfläche im Bereich des die Verdrehsicherung (7) tragenden stirnseitigen Muffenendes angeordnet ist.6. Connecting sleeve according to one of claims 1 to 5, characterized in that the part of the circumferential surface provided with the sealing grooves (8) is arranged in the region of the front end of the sleeve carrying the anti-twist device (7).
DE9105824U 1990-11-15 1991-05-10 Plastic-coated, metal connecting sleeve Expired - Lifetime DE9105824U1 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
DE9105824U DE9105824U1 (en) 1991-05-10 1991-05-10 Plastic-coated, metal connecting sleeve
DE59107906T DE59107906D1 (en) 1990-11-15 1991-09-12 Sanitary and heating pipe system, consisting entirely or predominantly of plastic
DE59103894T DE59103894D1 (en) 1990-11-15 1991-09-12 Sanitary and heating pipe system, consisting entirely or predominantly of plastic, in particular polypropylene, for the water supply.
AT91115490T ATE115704T1 (en) 1990-11-15 1991-09-12 SANITARY AND HEATING PIPE SYSTEM, MADE ENTIRELY OR MAINLY OF PLASTIC, ESPECIALLY POLYPROPYLENE, FOR WATER SUPPLY.
EP19910115490 EP0485706B1 (en) 1990-11-15 1991-09-12 Pipe system for water supply to sanitary and heating systems, entirely or predominantly made of plastic, especially polypropylene
AT93113908T ATE139024T1 (en) 1990-11-15 1991-09-12 SANITARY AND HEATING PIPE SYSTEM, COMPOSED ENTIRELY OR PREMIUMLY OF PLASTIC
EP19930113909 EP0576041B1 (en) 1990-11-15 1991-09-12 Pipe system for sanitary and heating systems, entirely or predominantly made of plastic
EP19930113907 EP0578283A1 (en) 1990-11-15 1991-09-12 Pipe system for water supply to sanitary and heating systems, entirely or predominantly made of plastic
EP19930113906 EP0578282A1 (en) 1990-11-15 1991-09-12 Pipe system for water supply to sanitary and heating systems, entirely or predominantly made of plastic
AT93113909T ATE134261T1 (en) 1990-11-15 1991-09-12 SANITARY AND HEATING PIPE SYSTEM, COMPOSED ENTIRELY OR PREMIUMLY OF PLASTIC
EP19930113908 EP0579270B1 (en) 1990-11-15 1991-09-12 Pipe system for sanitary and heating systems, entirely or predominantly made of plastic
ES91115490T ES2067111T3 (en) 1990-11-15 1991-09-12 A SYSTEM OF SANITARY PIPES AND HEATING.
DE59107413T DE59107413D1 (en) 1990-11-15 1991-09-12 Sanitary and heating pipe system, consisting entirely or predominantly of plastic
CA002054669A CA2054669A1 (en) 1990-11-15 1991-10-31 Plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene
US07/792,316 US5286001A (en) 1990-11-15 1991-11-14 Plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene
US08/089,718 US5341843A (en) 1990-11-15 1993-07-09 Plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene
GR950400524T GR3015364T3 (en) 1990-11-15 1995-03-10 Pipe system for water supply to sanitary and heating systems, entirely or predominantly made of plastic, especially polypropylene.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9105824U DE9105824U1 (en) 1991-05-10 1991-05-10 Plastic-coated, metal connecting sleeve

Publications (1)

Publication Number Publication Date
DE9105824U1 true DE9105824U1 (en) 1991-07-18

Family

ID=6867214

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9105824U Expired - Lifetime DE9105824U1 (en) 1990-11-15 1991-05-10 Plastic-coated, metal connecting sleeve

Country Status (1)

Country Link
DE (1) DE9105824U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999017046A1 (en) * 1997-09-30 1999-04-08 Continental Teves Ag & Co. Ohg Threaded insert for hydraulic systems
DE102021114018A1 (en) 2021-05-31 2022-12-01 Grohe Ag Fastening element for fastening a sanitary shower head to a support and method for producing the fastening element

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD128216A1 (en) * 1976-11-18 1977-11-09 Wolfgang Huebner METHOD FOR PRODUCING PLAST METAL CRUSHING COMPOUNDS
DE8809742U1 (en) * 1988-07-22 1988-10-06 Rosenberg, Gerhard, 5952 Attendorn Plastic adapter for connecting plastic pipes with fittings or pipes made of metallic materials
DE3246768C1 (en) * 1982-12-17 1989-01-12 Daimler-Benz Ag, 7000 Stuttgart Gas and liquid-tight connection between a plastic body and a metal body embedded therein under pressure by flowing around it with a plasticized plastic mass
DE4129853C1 (en) * 1991-09-07 1992-11-19 Friedrichsfeld Ag Keramik- Und Kunststoffwerke, 6800 Mannheim, De
DE4117932A1 (en) * 1991-05-31 1992-12-03 Beul Gmbh & Co Kg Geb COUPLING DEVICE FOR PRODUCING A NON-DETACHABLE PIPE CONNECTION
DE4135422A1 (en) * 1991-10-26 1993-04-29 Rehau Ag & Co CLAMP CONNECTOR FOR TUBES OR HOSES MADE OF POLYMER MATERIAL

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD128216A1 (en) * 1976-11-18 1977-11-09 Wolfgang Huebner METHOD FOR PRODUCING PLAST METAL CRUSHING COMPOUNDS
DE3246768C1 (en) * 1982-12-17 1989-01-12 Daimler-Benz Ag, 7000 Stuttgart Gas and liquid-tight connection between a plastic body and a metal body embedded therein under pressure by flowing around it with a plasticized plastic mass
DE8809742U1 (en) * 1988-07-22 1988-10-06 Rosenberg, Gerhard, 5952 Attendorn Plastic adapter for connecting plastic pipes with fittings or pipes made of metallic materials
CH675902A5 (en) * 1988-07-22 1990-11-15 Gerhard Rosenberg Plastics pipe adaptor to metal fitting - has dovetail-section external peripheral groove in metal bush in plastics sleeve
DE4117932A1 (en) * 1991-05-31 1992-12-03 Beul Gmbh & Co Kg Geb COUPLING DEVICE FOR PRODUCING A NON-DETACHABLE PIPE CONNECTION
DE4129853C1 (en) * 1991-09-07 1992-11-19 Friedrichsfeld Ag Keramik- Und Kunststoffwerke, 6800 Mannheim, De
DE4135422A1 (en) * 1991-10-26 1993-04-29 Rehau Ag & Co CLAMP CONNECTOR FOR TUBES OR HOSES MADE OF POLYMER MATERIAL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999017046A1 (en) * 1997-09-30 1999-04-08 Continental Teves Ag & Co. Ohg Threaded insert for hydraulic systems
DE102021114018A1 (en) 2021-05-31 2022-12-01 Grohe Ag Fastening element for fastening a sanitary shower head to a support and method for producing the fastening element

Similar Documents

Publication Publication Date Title
EP0485706B1 (en) Pipe system for water supply to sanitary and heating systems, entirely or predominantly made of plastic, especially polypropylene
DE2251986A1 (en) PIPE TERMINATION FOR INSTALLATION IN THE CONCRETE WALL OF AN UNDERGROUND CROWN OR THE LIKE
EP3625860A1 (en) Cable bushing
DE2216488A1 (en) Insert to create a fastening option in a three-layer panel
DE1958458A1 (en) Anchor body for tendons
DE2935392A1 (en) PIPE WITH A SEALING SURFACE PROVIDED WITH A PROTECTIVE ELEMENT
DE2602377C2 (en) Arrangement of two interlocking refractory bodies
DE9105824U1 (en) Plastic-coated, metal connecting sleeve
DE8716394U1 (en) Flush-mounted plastic sleeve as part of a transition piece for connecting plastic pipes with fittings made of metallic materials
DE2726672C3 (en) Wall bushing for earth conductors, in particular earth straps
DE2717951C2 (en) Wall bushing for cables, lines, pipes or the like.
DE8810285U1 (en) Transition piece for connecting plastic pipes with fittings made of metallic materials
DE4217529C2 (en) Flush-mounted box for a sanitary fitting
DE19819116C2 (en) Device for sealing a water inlet
DE3414155C2 (en)
DE9105823U1 (en) Plastic shut-off valve with a metal valve seat for installation in pipelines
DE2641682A1 (en) Sleeve for cable or pipe in wall - has outer shoulder to secure seal against step in bore through wall
DE9012624U1 (en) Tight passage of cables through cylindrical openings in walls of components
EP0768490A1 (en) Pipe coupling
EP0344608B1 (en) Precast concrete element for prestressed concrete structures
DE2640600C3 (en) Device for the moisture-proof covering of a cable splice
DE19901850A1 (en) Method for manufacturing a sanitary armature used for e.g. water utilities, has sealing means and narrowings with spraying openings
EP3859923A1 (en) Earth conductor feedthrough
DE9015675U1 (en) Transition piece for connecting plastic pipes with fittings made of metallic materials
DE8908805U1 (en) Transition piece for connecting plastic pipes with fittings made of metallic materials