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WO2008053050A2 - Raccord pour un tuyau - Google Patents

Raccord pour un tuyau Download PDF

Info

Publication number
WO2008053050A2
WO2008053050A2 PCT/EP2007/061885 EP2007061885W WO2008053050A2 WO 2008053050 A2 WO2008053050 A2 WO 2008053050A2 EP 2007061885 W EP2007061885 W EP 2007061885W WO 2008053050 A2 WO2008053050 A2 WO 2008053050A2
Authority
WO
WIPO (PCT)
Prior art keywords
tubular passage
fitting
plastic material
fitting body
connection
Prior art date
Application number
PCT/EP2007/061885
Other languages
German (de)
English (en)
Other versions
WO2008053050A3 (fr
Inventor
Bernd Kaufmann
Original Assignee
Uponor Innovation Ab
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 Uponor Innovation Ab filed Critical Uponor Innovation Ab
Publication of WO2008053050A2 publication Critical patent/WO2008053050A2/fr
Publication of WO2008053050A3 publication Critical patent/WO2008053050A3/fr

Links

Classifications

    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B29C45/14491—Injecting material between coaxial articles, e.g. between a core and an outside sleeve for making a roll
    • 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
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/14—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F16L13/143—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element placed around the male part before crimping or rolling
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B29C2045/14327—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles anchoring by forcing the material to pass through a hole in the article
    • 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

Definitions

  • the invention relates to a fitting for a pipe, which is in particular a pipe having a plastic layer on its inside.
  • Fittings for the connection of pipes whose walls consist entirely of plastic material or of a metal-plastic composite material are known in many embodiments.
  • the fitting body of the known fittings usually consist of either plastic or metal. Metal is preferred for its strength, while a plastic fitting is prone to corrosion because of its corrosion resistance
  • the object of the invention is to provide a fitting for a pipe, the plastic material and metal, however, has no interface between the two materials and therefore has improved corrosion protection.
  • the invention proposes a fitting for a pipe, in particular a pipe having a plastic layer on its inner side, the fitting being provided with
  • a fitting body which has plastic material and is provided with at least one connection region for the tube, and at least one tubular passage portion having metal insert element which is at least partially enclosed by the plastic material of the fitting body, - wherein the tubular passage portion has on its inside a plastic material Läge which is guided around at least one axial end of the tubular passage section and extends into the outer side region of the tubular passage section adjacent to the axial end, and wherein the at least one connection region of the fitting body is formed by the material material on the outer side region of the tubular passage section.
  • the fitting according to the invention comprises a metal insert element with a tubular passage section, which is also coated on the inside and at least one axial end of plastic material outside the Kunststoffrnaterial Scheme forms the at least one connection region of the fitting, within which a pipe to be connected are brought into close contact with the fitting body can.
  • a metal insert element with a tubular passage section, which is also coated on the inside and at least one axial end of plastic material outside the Kunststoffrnaterial Scheme forms the at least one connection region of the fitting, within which a pipe to be connected are brought into close contact with the fitting body can.
  • a press or a sliding sleeve or by a screw connection (for example: slotted ring with union nut).
  • a screw connection for example: slotted ring with union nut
  • Pipe fittings may have different constructive designs for a wide variety of purposes. Serves the Fftting as a pure pipe connector, it has at least two connection areas (preferably at the axial ends of its tubular passage section). Also conceivable are T-shaped fittings to which three tubes can be connected. According to the invention, all of these fittings have correspondingly designed metal insert elements with a number of tubular passage sections corresponding to the intended use, which according to the invention are lined on the inside with the plastic material of the fitting body and also have plastic material within each of their connection areas. In that regard, therefore, the metal insert element is embedded in the plastic material of the fitting body.
  • the production of such a fitting according to the invention is effected by injection molding, wherein the respective metal insert element has been previously inserted into the injection mold.
  • the metal insert element is structured on its surfaces provided with plastic material. This can be done for example by a longitudinal or peripheral toothing, by knurling or other projections. A helical toothing (preferably with intersecting circumferential ribs) is conceivable.
  • the composite material of metal and plastic is given an additional positive connection.
  • Such a positive connection can additionally or alternatively also be realized in that the metal insert element has perforations, via which the inside of the metal insert element are connected to those outer side regions of the metal insert element within which, as on the inside, plastic material is present.
  • connection ends that connect them to the media-tight units.
  • the fitting body if it has such connection ends, is likewise provided with plastic within these connection ends, which covers the meta-insert element which extends into this connection end region. If an internal or external thread is formed at the connection end, then this is according to the invention in the Kunststoffmateria! incorporated, which applies equally to the formation of the thread on the inside or on the outside of the connection end of the fitting body.
  • FIG. 1 shows a longitudinal half section through a first embodiment of a fitting with a metal insert embedded in plastic
  • FIG. 2 shows a longitudinal half section through a second embodiment of a fitting with a metal insert element embedded in plastic
  • Fig. 3 is a longitudinal half section through a third,sbeispie! a fitting with a metal insert embedded in plastic
  • 4 shows a longitudinal half section through a fourth exemplary embodiment of a fitting with a metal insert element embedded in plastic.
  • the fitting 10 comprises a fitting body 15 which has a metal insert element 16 with a substantially tubular passage section 18.
  • the tubular passage section 18 is formed by a cylindrical wall 20 of the metal insert element 16, which has an inner side 22, an outer side 24 and an axial end 26.
  • the wall 20 of the tubular passage portion 18 with a plastic layer 28 is coated.
  • This plastic läge 28 extends into a region 30 around the end 26 of the wall 20 and from there to beyond the outside 24 of the wall 20.
  • the located in this area plastic material layer 32 may be profiled on its outer side 34 and forms the pipe connection area As shown in FIG. 1, at least one receiving groove 38 for a sealing ring 40 may be located in the section 34 of the plastic layer.
  • the outermost plastic material layer 32 does not extend over the entire outside 24 of the wall 20. This portion of the plastic material layer may cover the entire outside 24 and should extend at least within the connection region 36.
  • the fitting 10 also has plastic on the inner side 22 and the outer side 24 of the wall 20 of the metal insert element 16 at the end 42 of its fitting body opposite the contact region 36.
  • a screw thread 46 is also madebil- det.
  • the horransetzabschn ⁇ tt 52 is formed entirely of plastic.
  • an open-end wrench or a pair of pliers can be attached to the radial projection 50, with which the fitting 10 can be screwed at its connecting end 42 onto a water-conducting unit (not shown) (for example, pipe socket or appliance nozzle).
  • a water-conducting unit for example, pipe socket or appliance nozzle
  • the wall 20 of the metal insert element 16 has a multiplicity of holes or through-holes or similar perforations or recesses 54 which connect the outside 24 to the inside 22 of the wall 20 of the metal insert element 16.
  • plastic material also enters the recesses 54, thereby resulting in an improved mechanical connection between the plastic and the metal of the metal insert element 16.
  • This positive connection can also be achieved by a Profii réelle the Metali lenderselements 16 on the inner and outer sides 22,24 of the wall 20.
  • FIGS. 2 to 4 show alternative embodiments of fittings 10 ', 10 "and 10'", all of which are characterized by metal insert elements at least partially embedded in plastic, wherein, as also shown in FIG To conductive medium in contact surfaces of the fitting are covered with plastic. Same elements of the respective fittings according to FIGS. 1 to 4 are provided with the same reference numerals.
  • an external thread 56 is incorporated in the plastic casing at the connection end 42 of the fitting 10 '; the horransetzabêt 52 continues to be made of plastic, as in the embodiment of FIG. 1.
  • the tool setting section 52 is designed as a circumferential radial projection 50 of the metal insert element 16.
  • the plastic coating on the outside 24 of the wall 20 of the metal insert element 16 at the connection end 42 of the fitting 10 "ends, for example, on the circumferential radial projection 50.
  • FIG. 3 shows a fitting 10" with internal thread 46 on the inside 44 of the plastic sheath of the connection end 42 while in Fig. 4, the fitting 10 "'has a plastic outer thread 56
  • the integral connections between the inner and outer plastic material layers via the recesses 54 may be designed as shear pins which shear off at a defined torque. Axial forces can then be transmitted via a peripheral circumferential toothing (not shown) on the inner and / or outer side of the Metali lenderselements 16 between plastic and metal- In the embodiments hypo measure the Fign. 1 and 2, in which the horransetzabête 52 made of Kunststoffmateriai, a shearing connection and thus a solid to a defined torque connection by shearing the circumferential radial projection 50 (or a part thereof) may be realized to the radially adjacent portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

Raccord pour un tuyau, notamment pour un tuyau présentant une couche de matière plastique sur son côté intérieur, comprenant : un corps de raccord (15) qui présente du matériau plastique et est pourvu d'au moins une région de raccordement (36) pour le tuyau ; et un élément d'insertion métallique (16) qui présente au moins une partie de passage tubulaire (18) et qui est entouré au moins partiellement par le matériau plastique du corps de raccord (15). La partie de passage tubulaire (18) présente sur son côté intérieur (22) une couche (28) de matière plastique qui est dirigée autour d'au moins une extrémité axiale (26) de la partie de passage tubulaire (18) et qui s'étend jusque dans la région de côté extérieur (24) de la partie de passage tubulaire (18) qui est voisine de l'extrémité (26). La ou les régions de raccordement au (36) sont formées par la couche (32) de matière plastique sur la région de côté extérieur (24) de la partie de passage tubulaire (18).
PCT/EP2007/061885 2006-11-03 2007-11-05 Raccord pour un tuyau WO2008053050A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610051774 DE102006051774A1 (de) 2006-11-03 2006-11-03 Fitting für ein Rohr
DE102006051774.1 2006-11-03

Publications (2)

Publication Number Publication Date
WO2008053050A2 true WO2008053050A2 (fr) 2008-05-08
WO2008053050A3 WO2008053050A3 (fr) 2008-07-17

Family

ID=39264806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/061885 WO2008053050A2 (fr) 2006-11-03 2007-11-05 Raccord pour un tuyau

Country Status (2)

Country Link
DE (1) DE102006051774A1 (fr)
WO (1) WO2008053050A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8109540B2 (en) * 2008-05-30 2012-02-07 Contech Construction Products Inc. Pipe joint and related method
EP2163814B1 (fr) * 2008-09-16 2020-03-11 HELLA GmbH & Co. KGaA Réflecteur pour un dispositif d'éclairage d'un véhicule automobile
IT1391540B1 (it) * 2008-11-04 2012-01-11 Mecc Lan S R L Boccola alleggerita di connessione per elementi di radiatore
DE102008059411A1 (de) 2008-11-27 2010-06-02 Mann + Hummel Gmbh Kunststoffhohlteil und Verfahren zu dessen Herstellung
DE102010009805B4 (de) * 2010-03-01 2013-02-14 Phoenix Contact Gmbh & Co. Kg Steckbrücke
DE102012108146B4 (de) 2012-09-03 2022-05-25 Viega Technology Gmbh & Co. Kg Fitting, System mit einem solchen Fitting und dichte Verbindung mit einem solchen Fitting
DE102020134501A1 (de) * 2020-12-21 2022-06-23 Voss Automotive Gmbh Schraubteil mit ringförmigen Querschnitt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2626302A1 (de) 1975-06-14 1976-12-23 Kubota Ltd Verbindungsstueck fuer rohre
DE8406562U1 (de) 1984-03-02 1984-08-30 Jeschke, Immanuel, 3203 Sarstedt Uebergangsstueck in einer gasleitung
DE19957601A1 (de) 1999-11-30 2001-06-07 Hewing Gmbh Rohrleitungselement mit einer Anschlussfläche zum Verbinden mit einem anderen Rohrleitungselement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614137A (en) * 1970-04-09 1971-10-19 Perfection Corp Reinforced plastic fitting
US5944359A (en) * 1997-05-12 1999-08-31 Pureflex Inc. Flangeless piping system for lined pipe
DE19838125C1 (de) * 1998-08-21 1999-12-02 Roth Werke Gmbh Rohrverbinder für Kunststoffrohre und/oder Kunststoff/Metall-Verbundrohre
JP3559175B2 (ja) * 1998-09-10 2004-08-25 株式会社モールド技術研究所 インサートパイプ成形品の製造方法
JP2004293587A (ja) * 2003-03-25 2004-10-21 Sekisui Chem Co Ltd 管継手

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2626302A1 (de) 1975-06-14 1976-12-23 Kubota Ltd Verbindungsstueck fuer rohre
DE8406562U1 (de) 1984-03-02 1984-08-30 Jeschke, Immanuel, 3203 Sarstedt Uebergangsstueck in einer gasleitung
DE19957601A1 (de) 1999-11-30 2001-06-07 Hewing Gmbh Rohrleitungselement mit einer Anschlussfläche zum Verbinden mit einem anderen Rohrleitungselement

Also Published As

Publication number Publication date
DE102006051774A1 (de) 2008-05-08
WO2008053050A3 (fr) 2008-07-17

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