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WO1997014572A1 - Dispositif de fixation d'un bouchon de remplissage sur le conduit de remplissage en matiere plastique du reservoir d'un vehicule a moteur - Google Patents

Dispositif de fixation d'un bouchon de remplissage sur le conduit de remplissage en matiere plastique du reservoir d'un vehicule a moteur Download PDF

Info

Publication number
WO1997014572A1
WO1997014572A1 PCT/AT1996/000199 AT9600199W WO9714572A1 WO 1997014572 A1 WO1997014572 A1 WO 1997014572A1 AT 9600199 W AT9600199 W AT 9600199W WO 9714572 A1 WO9714572 A1 WO 9714572A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
tank
anchoring ring
anchoring
plastic
Prior art date
Application number
PCT/AT1996/000199
Other languages
German (de)
English (en)
Inventor
Peter Ofitsch
Original Assignee
Blau International Gesmbh
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 Blau International Gesmbh filed Critical Blau International Gesmbh
Priority to EP96933259A priority Critical patent/EP0796177A1/fr
Publication of WO1997014572A1 publication Critical patent/WO1997014572A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets

Definitions

  • the present invention relates to a device for anchoring a tank cap to a plastic filler neck of a vehicle fuel tank.
  • the end piece of a fuel tank filler neck must enable a tank cap to be securely and tightly anchored.
  • a metal cap provided with an ⁇ mfullöffung for the engagement of the tank cap with an internal thread, is screwed onto the end of the filler neck provided with a corresponding external thread and with a radial screw secured against drama.
  • an anti-rotation device is also provided with the aid of pawls formed on the circumference of the ring in a spring steel strip , which can snap into a circumferential gap of the nozzle end, known per se.
  • This first variant has the disadvantage that the end of the filler neck must already be provided with the external thread for the metal to be screwed on. Especially since the filler neck is frequently formed with the vehicle tank, this creates additional effort in the manufacture of the tank or neck. This means that vehicle tanks with molded filler necks on the one hand and closure systems on the other hand are manufactured by different manufacturers or at different locations, so that in practice the special adaptation of the end of the filler neck to the closure system to be fitted causes logistic and storage costs.
  • a separate plastic anchoring ring for a plastic welded joint is provided for the end of the filler neck, which forms the interface to the metal cap.
  • the metal cap is pressed onto the plastic ring in the axial direction and is pressed with in the axial direction.
  • the axial press fit requires a high axial force to be exerted on the cap and thus on the anchoring ring, which cannot be properly intercepted after it has been installed on the filler neck, because this usually has an irregular, vehicle-specific curve, so that it is clamped is extremely difficult.
  • a fixation in the state installed in the vehicle is not yet given at this point in time because this takes place only through the end piece to be fitted and its connection to the body.
  • the cap is pressed onto the still loose anchoring ring before assembly, and only then is the entire end piece with the end of the filler neck, e.g. connected by hot mirror welding of the face of the anchoring ring to the face of the end of the filler neck.
  • the metal cap is fixed by rolling to a peripheral shoulder of the anchoring ring, which can likewise only be carried out before assembly on the loosely present anchoring ring.
  • the invention therefore aims to provide a device for anchoring a tank cap to a plastic filler.
  • a novel combination which is composed of a metal cap provided with an opening for filling a tank cap and an internal thread, and an anchoring ring made of plastic with an external thread that can be hot-mirror welded to the front side of the filler neck, wherein one or more pawls are formed from the wall of the cap, which latch when the cap is screwed onto the anchoring ring in a circumferential toothing of the anchoring ring.
  • the anchoring ring can be connected to the filler neck before the cap is installed, the entire plastic assembly can be treated in the fluoric acid bath without the metal cap also being subjected to this treatment. An additional coating of the metal cap is therefore unnecessary.
  • the invention also opens up the preferred possibility of replacing a defective cap or parts fixed by it by loosening the anti-rotation device, which is not possible without destruction in the case of axially pressed or rolled end pieces, but rather requires the entire tank to be replaced.
  • an insert can be defined between the edge of the cap surrounding the opening and the end face of the anchoring ring, which insert serves to guide and / or seal the full pipe of a fuel nozzle to be accommodated.
  • caps and anchoring rings of the same type can be used only by exchanging the corresponding insert.
  • the assembly effort for an end piece can be reduced if, according to a preferred alternative embodiment of the invention, the cap bears an insert part which projects into the anchoring ring and which is used to guide and / or seal the full pipe of a pipe Fuel nozzle is used.
  • FIG. 1 the cap and FIG. 2 the anchoring ring of the end piece according to the invention in an oblique view from above,
  • Fig. 4 shows a radial section at the height of the anti-rotation device.
  • the end piece shown in the figures comprises a cap 1 made of metal, which can be screwed onto an anchoring ring 2 made of plastic by means of a thread 3.
  • the thread 3 is a three-start, segment-wise trapezoidal thread and is composed of a m or the like embossed, rolled or the like in the wall of the cap 1.
  • other threads known in the art can also be used.
  • the anchoring ring 2 has on its underside a flat end face 6, with which it can be butt-welded to the upper end face of a plastic filler neck (not shown) of a vehicle fuel tank, for example by heat mirror welding.
  • the cap 1 is provided on its upper side with an opening 7 for the passage of the full pipe (not shown) of a nozzle (also not shown).
  • the Edge 8 of the opening 7 is east through corresponding recesses 8 'as one part of a bayonet fitting, or the like lentverschlus ⁇ ses. formed behind which em as other bayonet lock part, screw lock part or the like. trained (not shown) fuel cap can be locked, as is known to those skilled in the art.
  • an anti-rotation device 9 Arranged between the cap 1 and the anchoring ring 2 is an anti-rotation device 9, which comprises three locking pawls 10 formed from the wall of the cap 1, which engage in sawtooth-shaped peripheral teeth 11 of the anchoring ring 2.
  • the pawls 10 snap onto the steep flanks of the circumferential toothing 11 and prevent the connection from being unscrewed.
  • the screw connection can be loosened again by lifting the locking pawls 10 from the circumferential teeth 11 (broken line position in FIG. 4).
  • any other type of anti-rotation device whether it acts in one or two directions, can be released or can no longer be released after screwing down, as is known to the person skilled in the art.
  • an axially or slightly semi-axially acting sealing ring 13 is arranged in an end groove 12 of the anchoring sleeve 2.
  • an insert (not shown) can also be fixed which projects into the interior of the anchoring ring 2 and for guiding and / or sealing the full pipe of the nozzle serves when refueling.
  • this insert could also be made in one piece with the cap or the anchoring ring, for example as an insert part which is carried by the cap 1 and which projects into the anchoring ring 2.
  • the end piece is assembled by hot mirror welding of the anchoring ring to the filler neck end, if necessary chemical treatment of these parts. Insert a corresponding insert into the anchoring ring and screw on the metal cap on site.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Dispositif de fixation d'un bouchon de remplissage sur le conduit de remplissage en matière plastique du réservoir d'un véhicule à moteur, comprenant une coiffe métallique (1) munie d'un orifice de remplissage, apte à venir en prise avec un bouchon de remplissage et présentant un filetage femelle (4), une bague de fixation (2) en matière plastique, à filetage mâle (5), thermosoudable au miroir avec la face du conduit de remplissage, dispositif dans lequel un ou plusieurs crans d'arrêt (10) ménagés dans la paroi de la coiffe (1) s'enclenchent, lors du vissage de la coiffe (1) sur la bague de fixation, dans une denture périphérique (11) de ladite bague de fixation (2).
PCT/AT1996/000199 1995-10-16 1996-10-16 Dispositif de fixation d'un bouchon de remplissage sur le conduit de remplissage en matiere plastique du reservoir d'un vehicule a moteur WO1997014572A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96933259A EP0796177A1 (fr) 1995-10-16 1996-10-16 Dispositif de fixation d'un bouchon de remplissage sur le conduit de remplissage en matiere plastique du reservoir d'un vehicule a moteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0171895A AT403461B (de) 1995-10-16 1995-10-16 Vorrichtung zur verankerung eines tankdeckels an einem einfüllstutzen
ATA1718/95 1995-10-16

Publications (1)

Publication Number Publication Date
WO1997014572A1 true WO1997014572A1 (fr) 1997-04-24

Family

ID=3519512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1996/000199 WO1997014572A1 (fr) 1995-10-16 1996-10-16 Dispositif de fixation d'un bouchon de remplissage sur le conduit de remplissage en matiere plastique du reservoir d'un vehicule a moteur

Country Status (3)

Country Link
EP (1) EP0796177A1 (fr)
AT (1) AT403461B (fr)
WO (1) WO1997014572A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666239B2 (en) 2001-10-09 2003-12-23 Tesma-Motoren-Und Getriebetechnik Gmbh Filling pipe for a fuel tank with insert

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026452A (en) * 1978-07-28 1980-02-06 Neiman Diffusion Conversion ring for fuel tank mouths
EP0210322A1 (fr) * 1985-08-01 1987-02-04 Rhein-Conti Kunststoff-Technik GmbH Embout de remplissage pour réservoir de carburant

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1294601A (fr) * 1961-07-10 1962-05-26 Smith & Sons Ltd S Dispositif de fixation étanche d'un assemblage à une paroi par-dessus une ouverture pratiquée dans cette paroi, plus particulièrement applicable à la fixation d'un organe indicateur de niveau sur la paroi d'un réservoir de combustible
US3907155A (en) * 1974-09-03 1975-09-23 Gen Motors Corp Locking filler cap

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026452A (en) * 1978-07-28 1980-02-06 Neiman Diffusion Conversion ring for fuel tank mouths
EP0210322A1 (fr) * 1985-08-01 1987-02-04 Rhein-Conti Kunststoff-Technik GmbH Embout de remplissage pour réservoir de carburant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666239B2 (en) 2001-10-09 2003-12-23 Tesma-Motoren-Und Getriebetechnik Gmbh Filling pipe for a fuel tank with insert

Also Published As

Publication number Publication date
EP0796177A1 (fr) 1997-09-24
AT403461B (de) 1998-02-25
ATA171895A (de) 1997-07-15

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