WO1999034143A1 - Connexion de pieces extrudees ou moulees - Google Patents

Connexion de pieces extrudees ou moulees Download PDF

Info

Publication number
WO1999034143A1
WO1999034143A1 PCT/GB1998/003434 GB9803434W WO9934143A1 WO 1999034143 A1 WO1999034143 A1 WO 1999034143A1 GB 9803434 W GB9803434 W GB 9803434W WO 9934143 A1 WO9934143 A1 WO 9934143A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixture
interlock member
connection part
parts
extruded
Prior art date
Application number
PCT/GB1998/003434
Other languages
English (en)
Inventor
Loïc RENOU
Frédéric Renaud
Original Assignee
Draftex Industries Limited
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 Draftex Industries Limited filed Critical Draftex Industries Limited
Publication of WO1999034143A1 publication Critical patent/WO1999034143A1/fr

Links

Classifications

    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
    • F16L37/0885—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring with access to the split elastic ring from a radial or tangential opening in the coupling

Definitions

  • the invention relates to an assembly, comprising a hollow tubular-walled extruded or blow-moulded connection part and a hollow tubular-walled fixture part, a first one of the parts being inserted into the second thereof to a predetermined extent, and an interlock member mounted on one part and resiliently supported thereon to allow it to be bent against its resilience during insertion of the first part into the second part, the interlock member then resiling to secure the two parts together against relative longitudinal movement.
  • the assembly as first set forth above is characterised in that the interlock member is mounted on the first part, and the second part has aperture means into which a locking part of the interlock member resiles so as to secure the two parts together also against relative rotating movement.
  • Figure 1 is a longitudinal view, partly in section, of one of the parts showing its connection to another part;
  • Figure 2 is an exploded view corresponding to Figure 3 but showing the two parts before their connection.
  • a pipe having a connection part 5 is produced by a blow-moulding technique.
  • the pipe is a flexible pipe made of thermoplastic material and incorporates corrugations (not shown) to increase its flexibility; such a pipe may be used as an air duct, a cooling water hose or a fuel tank filler hose in a motor vehicle, for example.
  • the pipe is to be secured to a tubular fixture which is rigid with a pipe 68.
  • the fixture could be a rigid tube or pipe associated with the air filter, cooling system or fuel tank of the vehicle, depending on the application.
  • the fixture may be produced (such as by injection-moulding) from suitable plastics material or may be made of metal or other suitable material .
  • connection part 5 has a distal end region 50 of reduced diameter which merges with a region 52 of enlarged diameter, the region 50 defining a circumferential groove 53 carrying an O-ring 54.
  • the enlarged region 52 is provided with an axially directed slot 56 which is open at one axial end and closed by a wall 58 at the opposite axial end.
  • Two circumferential walls 60 and 61 extend partially around the enlarged region 52 to define a groove 64 which extends equally on both sides of the slot 56.
  • Wall 60 merges with a pipe part 62 which, in turn, merges with the corrugations (not shown) of the pipe 4.
  • a separately moulded locking element 66 has one end shaped to be fitted and secured in the groove 64, so that its head 66A extends in cantilever fashion over the slot 56.
  • the pipe 68 has an intermediate circumferentially extending region 69 merging with an enlarged region 70 which has a part 72 of locally greater diameter.
  • the part 72 defines a slot 76 (see Figure 1) and is formed with an aperture 78 ( Figure 2) .
  • connection part 5 In order to connect the connection part 5 to the pipe 68, the connection part 5 with the clip 66 in position thereon is inserted into the enlarged part 72 of the fixture 8, with the two parts being angularly aligned with each other so that the clip 66 slides through the inverted slot 76 as shown in Figure 1.
  • the enlarged head 66A of the clip 66 is bent downwards by contact with the inverted base of the slot 76, this bending being accommodated by the cantilevered body 66B of the clip 66.
  • Relative axial movement of the connectors 5 and 8 continues until the distal end region 50 becomes located within the region 69, with the O-ring 54 being in sealing contact with this region.
  • the head 66A of the clip 66 becomes located in alignment with the aperture 78 ( Figure 2) and snaps into position within this aperture as shown in Figure 1.
  • the two pipes cannot now be axially separated or moved radially with respect to each other.
  • the two pipes can be rapidly connected together.
  • Such an interlocking arrangement provides a rapid means of connecting the flexible pipe 4 to the pipe 30 and avoids the use of separate connectors which have to be welded, over-moulded, or force-fitted onto the pipes, thus creating one or more supplementary interfaces with the pipes, such supplementary interfaces increasing the risk of failure or leakage and also being expensive .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

La présente invention concerne un tuyau extrudé ou moulé par soufflage, comportant par exemple des ondulations lui permettant d'être au moins partiellement flexible, constitué d'une pièce de connexion totalement extrudée (5) au moyen de laquelle le tuyau peut être verrouillé et hermétiquement fermé avec un montage de fixation tubulaire rigide (68). La pièce de connexion (5) porte un dispositif de verrouillage monté en porte-à-faux (66) de manière souple et comporte une extrémité élargie (66A). Cette dernière est sollicitée dans une direction radialement intérieure lorsque la pièce de connexion (5) est introduite dans le montage de fixation (68), puis fait ressort vers l'extérieur pour se placer dans l'ouverture (78) pratiquée dans le montage de fixation (68), de manière à fixer ensemble les deux pièces contre un déplacement à la fois longitudinal relatif et rotatif relatif.
PCT/GB1998/003434 1997-12-24 1998-11-13 Connexion de pieces extrudees ou moulees WO1999034143A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9727284A GB2332721A (en) 1997-12-24 1997-12-24 Extruded or blow-moulded member, e.g. pipe, with integral end connection
GB9727284.3 1997-12-24

Publications (1)

Publication Number Publication Date
WO1999034143A1 true WO1999034143A1 (fr) 1999-07-08

Family

ID=10824194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003434 WO1999034143A1 (fr) 1997-12-24 1998-11-13 Connexion de pieces extrudees ou moulees

Country Status (2)

Country Link
GB (1) GB2332721A (fr)
WO (1) WO1999034143A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378701A1 (fr) 2002-07-03 2004-01-07 EMS Chemie AG Raccord à action rapide pour l'assemblage de deux extrémités de tubes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038630A1 (de) * 2004-08-09 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Kupplung zum Verbinden eines Staubsaugerschlauchs mit einem Rohr
EP2977666B1 (fr) * 2014-07-22 2018-01-03 Oberdin S.R.L. Dispositif de raccord rapide pour tubes à liquide

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226841B (de) * 1960-04-12 1966-10-13 Cie De Pont A Mousson Sa Renkverschlusskupplung fuer Muffenrohre
US4114927A (en) * 1977-07-07 1978-09-19 Butcher Norman P Tube coupling for vacuum cleaners
FR2430216A1 (fr) * 1978-07-07 1980-02-01 Mauz & Pfeiffer Progress Dispositif d'assemblage par enfichage de deux elements tubulaires
EP0573863A2 (fr) 1992-05-29 1993-12-15 Tokai Rubber Industries, Ltd. Raccord de tuyaux souples
EP0579141A1 (fr) * 1992-07-15 1994-01-19 Continental Aktiengesellschaft Montage automatique d'un accouplement enfichable pour tuyaux flexibles dans des véhicules automobiles
DE29605642U1 (de) * 1996-03-27 1996-05-30 Bartlewski Juergen Anschlußstück zum Anschließen eines Spritzwerkzeugs o.dgl. an Versorgungsleitungen
US5667329A (en) * 1996-05-28 1997-09-16 Yoder, Jr.; James Herbert Quick change PVC pipe connection system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR74851E (fr) * 1958-02-20 1961-03-03 Cie De Pont A Mousson élément de tuyauterie en matière plastique, procédé et appareil pour sa fabrication
GB1260970A (en) * 1970-10-22 1972-01-19 Mueanyagfel Dolgozo Vall A pipe connection
US3859025A (en) * 1972-07-13 1975-01-07 Ernest J Maroschak Apparatus for making corrugated plastic pipes with integral coupler collar
US3926222A (en) * 1973-12-18 1975-12-16 Hancock Brick & Tile Co Corrugated tubing with integral coupling means thereon
GB1448189A (en) * 1974-05-15 1976-09-02 Mann & Hummel Filter Intake filter for internal combustion engines compressors and other air-intaking machaines
GB1544718A (en) * 1975-05-03 1979-04-25 Wolf F Method for attachment of one member to another
GB2049855B (en) * 1979-05-07 1983-05-25 Nat Union Electric Corp Vacuum cleaner bag and duct assembly
US4865362A (en) * 1988-07-29 1989-09-12 Dayco Products, Inc. Connectible flexible convoluted tubing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226841B (de) * 1960-04-12 1966-10-13 Cie De Pont A Mousson Sa Renkverschlusskupplung fuer Muffenrohre
US4114927A (en) * 1977-07-07 1978-09-19 Butcher Norman P Tube coupling for vacuum cleaners
FR2430216A1 (fr) * 1978-07-07 1980-02-01 Mauz & Pfeiffer Progress Dispositif d'assemblage par enfichage de deux elements tubulaires
EP0573863A2 (fr) 1992-05-29 1993-12-15 Tokai Rubber Industries, Ltd. Raccord de tuyaux souples
EP0579141A1 (fr) * 1992-07-15 1994-01-19 Continental Aktiengesellschaft Montage automatique d'un accouplement enfichable pour tuyaux flexibles dans des véhicules automobiles
DE29605642U1 (de) * 1996-03-27 1996-05-30 Bartlewski Juergen Anschlußstück zum Anschließen eines Spritzwerkzeugs o.dgl. an Versorgungsleitungen
US5667329A (en) * 1996-05-28 1997-09-16 Yoder, Jr.; James Herbert Quick change PVC pipe connection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378701A1 (fr) 2002-07-03 2004-01-07 EMS Chemie AG Raccord à action rapide pour l'assemblage de deux extrémités de tubes

Also Published As

Publication number Publication date
GB9727284D0 (en) 1998-02-25
GB2332721A (en) 1999-06-30

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