EP1145890B1 - Filling device - Google Patents

Filling device Download PDF

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Publication number
EP1145890B1
EP1145890B1 EP01106882A EP01106882A EP1145890B1 EP 1145890 B1 EP1145890 B1 EP 1145890B1 EP 01106882 A EP01106882 A EP 01106882A EP 01106882 A EP01106882 A EP 01106882A EP 1145890 B1 EP1145890 B1 EP 1145890B1
Authority
EP
European Patent Office
Prior art keywords
engagement
filler
cap
path
closure cap
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
EP01106882A
Other languages
German (de)
French (fr)
Other versions
EP1145890A2 (en
EP1145890A3 (en
Inventor
Reinhard Hilger
Ralf Malskorn
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.)
Blau Kunststofftechnik Zweigniederlassung der Tesma Europa GmbH
Original Assignee
Blau Kunststofftechnik Zweigniederlassung der Tesma Europa GmbH
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 Kunststofftechnik Zweigniederlassung der Tesma Europa GmbH filed Critical Blau Kunststofftechnik Zweigniederlassung der Tesma Europa GmbH
Publication of EP1145890A2 publication Critical patent/EP1145890A2/en
Publication of EP1145890A3 publication Critical patent/EP1145890A3/en
Application granted granted Critical
Publication of EP1145890B1 publication Critical patent/EP1145890B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/33—Gasoline tank cap

Definitions

  • the invention relates to a filling device with a filler neck and a closure cap having an engagement portion, said engagement portion and filler neck complementary engagement elements, for. B. for the purpose of forming a screw or bayonet connection, which can be brought by movement of the closure lid relative to the filler neck from an initial position without engagement via an adjoining engagement path in an end position and vice versa, with a securing device against automatic dropping of the closure lid arranged and formed is that it generates an increased resistance to movement in a certain range of movement of the closure cap.
  • Such a filling device is known from EP 683 108 A.
  • Filling devices of the type described above are provided, for example, in internal combustion engines in order to be able to refill and top up oil via them. They have a filler neck which is formed on the engine block or on the cylinder head cover of the internal combustion engine and can be closed with a suitable closure cap.
  • the closure lid has a handling web on top, over which he can be twisted. At the bottom, it projects into the filler neck with an engagement section.
  • Engagement portion and filler neck have complementary engagement elements to form a screw cap.
  • the socket-side engagement elements consist of two opposing engagement projections and the cover-side engagement elements of two helical and not quite over 180 ° extending in the circumferential direction engagement grooves.
  • the securing device consists of the groove bottom of the engagement grooves radially outward projecting locking lugs, which are elastically deflected radially inwardly and are run over during engagement of the closure lid of the engagement projections with a short-term increase in the resistance to movement.
  • the securing lugs are respectively arranged in the region of the ends of the engagement grooves, so that the engagement elements reach their end position when they have just passed over the safety lugs. In this way, the closure lid is held in its end position, so it can not move automatically. In the operation of the closure lid has been found in practice, however, that it is assumed erroneously, it is the end position reached when the resistance to movement increases because of the tarnishing against the locking lugs. The cap is then not rotated further and is henceforth unsecured. After a certain driving time, he twists himself to the starting position and is then thrown off.
  • the invention has the object of providing a filling device in such a way that it is ensured that the securing device (s) when closing the cap is actually run over or are.
  • the securing device is arranged such that it is effective in the free distance to the end position, ie is run over.
  • the basic idea of the invention is to arrange the securing device in such a way that it is run over well before reaching the end position, preferably in the region of the initial position. If the resistance increases in this area, the user will not yet assume that he has reached the end position, and he will continue to move the cap. In this way, it is ensured with high certainty that the closure cap is prevented by the securing device (s) from automatically releasing itself from the filler neck. It has not been found to be disadvantageous that the closure lid can now move automatically between the end position and the position in which the safety device is effective, by a certain distance in the opening direction.
  • the securing means is arranged such that it is effective towards the end position in the first third of the engagement path, preferably at the beginning of the engagement path, so that it is ensured that the engagement elements are still engaged when the closure lid has moved automatically in the direction of the securing device.
  • the securing device is arranged such that it is effective in the range of movement before the engagement path, for example, before reaching the initial position, as long as it is only ensured that the cap does not automatically can fall off.
  • the securing device is arranged such that it is effective in the initial position, ie immediately before the engagement path, so that the closure lid is stopped in an automatic movement in the opening direction before leaving the engagement path.
  • the range of motion consists of an axial path for placing the closure lid until reaching the initial position and then from a circumferential path to reach the end position, wherein the circumferential path comprises the engagement path.
  • the securing device should be effective in the area of the transition from Axialweg to circumferential path.
  • the safety device has in known manner an elastically deflectable securing lug on one of the parts filler neck or closure lid, which lies in the range of movement of an engagement member on the other part, wherein the securing lug is preferably arranged on the closure lid.
  • the socket-side engagement element has an engagement projection
  • the cover-side engagement element has an engagement groove.
  • the cover-side engagement element may have an axial and a peripheral portion, wherein the securing lug is arranged at the transition from axial to circumferential portion and has ramps in both the axial and in the radial direction.
  • the filler neck and the closure cap can also have a plurality of pairs - preferably two - of complementary engagement elements which are arranged such that the closure lid can be placed in a corresponding number of initial positions, and that then also an equal number of securing devices are provided, preferably so that each pair of complementary engagement elements are each assigned a security device, so that the security devices are run over during the movement of the closure lid simultaneously.
  • the closure lid 1 shown in the figures has a horizontal cover plate 2, from the top side a handling web 3 stands up.
  • the bottom side is followed by a substantially cylindrically formed engaging portion 4, which is open at the bottom.
  • the engagement portion 4 has below the cover plate 2 on an annular groove 5, in which an O-ring 6 is inserted.
  • annular groove 5 In which an O-ring 6 is inserted.
  • two engagement grooves 7, 8 are formed in the outer side of the engagement portion 4, which have approximately rectangular cross-section and start diametrically opposite. From their beginnings they screw each about 120 ° upwards and end in attacks 9, 10.
  • the lower ends of the engagement grooves 7, 8 open into axial grooves 11, 12, which leak to the lower end of the engagement portion 4 free.
  • Radial on the inside, the axial grooves 11, 12 are bounded by a respective securing web 13, 14, which are parts of the engagement portion 4, but are connected to it only on the top side. In this way, they can deflect elastically radially inward.
  • the securing webs 13, 14 have securing lugs 15, 16 which project radially outward. In undeflected State they are in each case over the circumference of the groove bottom of the respective adjacent engagement groove 7, 8, but are compared to the outer periphery of the engagement portion 4 back.
  • the securing lugs 15, 16 are bounded by stop webs 17, 18, which lie approximately at the level of the upper-side boundaries of the engagement grooves 7, 8.
  • To the securing lugs 15, 16 go axial run-on slopes 19, 20 which extend radially outwardly to the securing lugs 15, 16.
  • the engagement grooves 7, 8 opposite the securing webs 13, 14 peripheral chamfers 21, 22 which begin at the outer edges of the securing webs 13, 14 at the level of the respective adjacent groove bottom of the engagement grooves 7, 8 and radially obliquely outwardly to the locking lugs 15, 16th run.
  • the closure lid 1 shown in Figure 1 is used in Figure 2 from above in a circular filler neck 23 such that its engaging portion 4 projects into the filler neck 23.
  • the filler neck 23 is part of a cylinder head cover 24, not shown here.
  • the filler neck 23 is used to fill with oil, which then runs through corresponding channels in the oil pan of the engine.
  • the filler neck 23 has two diametrically opposite and radially inwardly projecting engagement projections 25, 26, whose axial extent is dimensioned so that they can retract into the engagement grooves 7, 8.
  • the closure lid 1 is axially inserted in such a position and so far that the engagement projections 25, 26 in the axial grooves 11, 12 engage and the securing webs 13, 14 sit on the upper edges of the engagement projections 25, 26, ie these upper edges have contact with the lower portions of the axial run-on slopes 19, 20.
  • the engagement projections 25, 26 in height the respective input ends of the engagement grooves 7, 8 come to rest the closure lid 1 must be pressed axially down until the tops of the engagement projections 25, 26 come to rest on the stop webs 17, 18.
  • the closure lid 1 can be rotated in the direction of arrow A in such a way that the engagement projections 25, 26 retract into the engagement grooves 7, 8.
  • the closure cap 1 screws into the filler neck 23 until the engagement projections 25, 26 abut against the stops 9, 10 at the ends of the engagement grooves 7, 8 and thus the closure cap 1 has reached its end position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Seal Device For Vehicle (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

A filler stub with a screw/bayonet fitting cap (1) has a safety catch (13,14) which prevents the cap from being thrown off the fitting if it loosens due to vibration etc. To ensure that the safety catch is engaged every time the cap is fitted the catch is engaged during the initial part of the cap fitting action ie. the operator is in no doubt that the cap is secured. The cap is secured by a screw or bayonet action and is sealed via integral seals (6). An alternate design has the catch engaged before the cap closing action can be applied.

Description

Die Erfindung betrifft eine Einfülleinrichtung mit einem Einfüllstutzen und einem Verschlußdeckel, der einen Eingriffsabschnitt aufweist, wobei Eingriffsabschnitt und Einfüllstutzen komplementäre Eingriffselemente, z. B. zwecks Bildung einer Schraub- oder Bajonettverbindung, aufweisen, die durch Bewegung des Verschlußdeckels gegenüber dem Einfüllstutzen aus einer Anfangsstellung ohne Eingriff über einen daran anschließenden Eingriffsweg in eine Endstellung und umgekehrt bringbar sind, wobei eine Sicherungseinrichtung gegen selbsttätiges Abfallen des Verschlußdeckels derart angeordnet und ausgebildet ist, daß sie in einem bestimmten Bewegungsbereich des Verschlußdeckels einen erhöhten Bewegungswiderstand erzeugt.The invention relates to a filling device with a filler neck and a closure cap having an engagement portion, said engagement portion and filler neck complementary engagement elements, for. B. for the purpose of forming a screw or bayonet connection, which can be brought by movement of the closure lid relative to the filler neck from an initial position without engagement via an adjoining engagement path in an end position and vice versa, with a securing device against automatic dropping of the closure lid arranged and formed is that it generates an increased resistance to movement in a certain range of movement of the closure cap.

Eine derartige Einfülleinrichtung ist aus der EP 683 108 A bekannt.Such a filling device is known from EP 683 108 A.

Einfülleinrichtungen der vorbeschriebenen Art werden beispielsweise bei Verbrennungsmotoren vorgesehen, um über sie Öl ein- und nachfüllen zu können. Sie weisen einen Einfüllstutzen auf, der am Motorblock oder am Zylinderkopfdeckel des Verbrennungsmotors ausgeformt und mit einem passenden Verschlußdeckel verschließbar ist. Der Verschlußdeckel weist obenseitig einen Handhabungssteg auf, über den er verdreht werden kann. Untenseitig ragt er mit einem Eingriffsabschnitt in den Einfüllstutzen hinein.Filling devices of the type described above are provided, for example, in internal combustion engines in order to be able to refill and top up oil via them. They have a filler neck which is formed on the engine block or on the cylinder head cover of the internal combustion engine and can be closed with a suitable closure cap. The closure lid has a handling web on top, over which he can be twisted. At the bottom, it projects into the filler neck with an engagement section.

Eingriffsabschnitt und Einfüllstutzen weisen komplementäre Eingriffselemente zwecks Bildung eines Schraubverschlusses auf. Bei einer bekannten Ausführungsform bestehen die stutzenseitigen Eingriffselemente aus zwei gegenüberliegenden Eingriffsvorsprüngen und die deckelseitigen Eingriffselemente aus zwei schraubenartigen und nicht ganz über 180° in Umfangsrichtung verlaufenden Eingriffsnuten. Durch Aufsetzen des Verschlußdeckels auf den Einfüllstutzen in einer der dafür vorgesehenen zwei Drehstellungen kommen die Eingriffsvorsprünge in die Anfangsstellung unmittelbar vor den Eingriffsnuten zu liegen. Durch anschließendes Verdrehen des Verschlußdeckels greifen die Eingriffsvorsprünge in die Eingriffsnuten ein und bilden nach Erreichen der Endstellung eine Schraubverbindung.Engagement portion and filler neck have complementary engagement elements to form a screw cap. In a known embodiment, the socket-side engagement elements consist of two opposing engagement projections and the cover-side engagement elements of two helical and not quite over 180 ° extending in the circumferential direction engagement grooves. By placing the cap on the filler neck in one of the designated two rotational positions, the engagement projections come to rest in the initial position immediately before the engagement grooves. By subsequent rotation of the closure lid, the engagement projections engage in the engagement grooves and form a screw connection after reaching the end position.

Da Verbrennungsmotoren Vibrationen erzeugen und Erschütterungen ausgesetzt sind, besteht die Gefahr, daß sich der Verschlußdeckel selbsttätig löst und abfällt. Dies ist mit erheblichen Gefahren für den Motor verbunden und deshalb unerwünscht. Im Stand der Technik sind deshalb Sicherungseinrichtungen in Form von Verdrehsicherungen vorgesehen, die den Bewegungswiderstand in einem bestimmten Bewegungsbereich soweit erhöhen, daß ein selbsttätiges Lösen des Verschlußdeckels nicht möglich ist. Bei der bekannten Ausführung besteht die Sicherungseinrichtung aus vom Nutgrund der Eingriffsnuten radial nach außen vorspringenden Sicherungsnasen, die radial nach innen elastisch auslenkbar sind und beim Zudrehen des Verschlußdeckels von den Eingriffsvorsprüngen unter kurzzeitiger Erhöhung des Bewegungswiderstands überfahren werden.Since internal combustion engines generate vibrations and vibrations are exposed, there is a risk that the cap automatically comes off and falls. This is associated with significant risks to the engine and therefore undesirable. In the prior art therefore safety devices in the form of anti-rotation are provided which increase the resistance to movement in a certain range of motion so far that an automatic release of the cap is not possible. In the known embodiment, the securing device consists of the groove bottom of the engagement grooves radially outward projecting locking lugs, which are elastically deflected radially inwardly and are run over during engagement of the closure lid of the engagement projections with a short-term increase in the resistance to movement.

Die Sicherungsnasen sind jeweils im Bereich der Enden der Eingriffsnuten angeordnet, so daß die Eingriffselemente ihre Endstellung erreichen, wenn sie gerade die Sicherungsnasen überfahren haben. Auf diese Weise wird der Verschlußdeckel in seiner Endstellung gehalten, kann sich also nicht selbsttätig bewegen. Bei der Bedienung des Verschlußdeckels hat sich in der Praxis jedoch herausgestellt, daß irrtümlich angenommen wird, es sei die Endstellung erreicht, wenn sich der Bewegungswiderstand wegen des Anlaufens an die Sicherungsnasen erhöht. Der Verschlußdeckel wird dann nicht weitergedreht und ist fortan ungesichert. Nach einer gewissen Fahrzeit verdreht er sich selbsttätig bis zur Anfangsstellung und wird dann abgeworfen.The securing lugs are respectively arranged in the region of the ends of the engagement grooves, so that the engagement elements reach their end position when they have just passed over the safety lugs. In this way, the closure lid is held in its end position, so it can not move automatically. In the operation of the closure lid has been found in practice, however, that it is assumed erroneously, it is the end position reached when the resistance to movement increases because of the tarnishing against the locking lugs. The cap is then not rotated further and is henceforth unsecured. After a certain driving time, he twists himself to the starting position and is then thrown off.

Der Erfindung liegt die Aufgabe zugrunde, eine Einfülleinrichtung derart auszubilden, daß sichergestellt ist, daß die Sicherungseinrichtung(en) beim Verschließen des Verschlußdeckels auch tatsächlich überfahren wird bzw. werden.The invention has the object of providing a filling device in such a way that it is ensured that the securing device (s) when closing the cap is actually run over or are.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Sicherungseinrichtung derart angeordnet ist, daß sie im freien Abstand zur Endstellung wirksam ist, d. h. überfahren wird. Grundgedanke der Erfindung ist es, die Sicherungseinrichtung so anzuordnen, daß sie schon weit vor Erreichen der Endstellung, vorzugsweise im Bereich der Anfangsstellung, überfahren wird. Wenn sich in diesem Bereich der Widerstand erhöht, wird der Benutzer noch nicht annehmen, er habe die Endstellung erreicht, und er wird den Verschlußdeckel weiterbewegen. Auf diese Weise ist mit hoher Sicherheit gewährleistet, daß der Verschlußdeckel durch die Sicherungseinrichtung(en) daran gehindert wird, sich selbsttätig vom Einfüllstutzen zu lösen. Dabei hat es sich nicht als nachteilig herausgestellt, daß der Verschlußdeckel sich nunmehr zwischen der Endstellung und der Stellung, in der die Sicherungseinrichtung wirksam wird, selbsttätig um einen bestimmten Weg in Öffnungsrichtung bewegen kann.This object is achieved in that the securing device is arranged such that it is effective in the free distance to the end position, ie is run over. The basic idea of the invention is to arrange the securing device in such a way that it is run over well before reaching the end position, preferably in the region of the initial position. If the resistance increases in this area, the user will not yet assume that he has reached the end position, and he will continue to move the cap. In this way, it is ensured with high certainty that the closure cap is prevented by the securing device (s) from automatically releasing itself from the filler neck. It has not been found to be disadvantageous that the closure lid can now move automatically between the end position and the position in which the safety device is effective, by a certain distance in the opening direction.

In Ausbildung der Erfindung ist vorgesehen, daß die Sicherungseinrichtung derart angeordnet ist, daß sie in Richtung auf die Endstellung im ersten Drittel des Eingriffswegs wirksam ist, vorzugsweise zu Beginn des Eingriffswegs, so daß gesichert ist, daß sich die Eingriffselemente noch in Eingriff befinden, wenn sich der Verschlußdeckel selbsttätig in Richtung auf die Sicherungseinrichtung bewegt hat.In training of the invention it is provided that the securing means is arranged such that it is effective towards the end position in the first third of the engagement path, preferably at the beginning of the engagement path, so that it is ensured that the engagement elements are still engaged when the closure lid has moved automatically in the direction of the securing device.

Selbstverständlich besteht auch die Möglichkeit, die Sicherungseinrichtung derart anzuordnen, daß sie im Bewegungsbereich vor dem Eingriffsweg, beispielsweise vor Erreichen der Anfangsstellung, wirksam ist, solange nur gesichert ist, daß der Verschlußdeckel nicht selbsttätig abfallen kann. In besonders bevorzugter Ausführungsform ist die Sicherungseinrichtung derart angeordnet, daß sie in der Anfangsstellung wirksam ist, also unmittelbar vor dem Eingriffsweg, so daß der Verschlußdeckel bei einer selbsttätigen Bewegung in Öffnungsrichtung noch vor Verlassen des Eingriffswegs angehalten wird.Of course, it is also possible to arrange the securing device such that it is effective in the range of movement before the engagement path, for example, before reaching the initial position, as long as it is only ensured that the cap does not automatically can fall off. In a particularly preferred embodiment, the securing device is arranged such that it is effective in the initial position, ie immediately before the engagement path, so that the closure lid is stopped in an automatic movement in the opening direction before leaving the engagement path.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß der Bewegungsbereich aus einem Axialweg für das Aufsetzen des Verschlußdeckels bis zum Erreichen der Anfangsstellung und daran anschließend aus einem Umfangsweg bis zum Erreichen der Endstellung besteht, wobei der Umfangsweg den Eingriffsweg umfaßt. Bei dieser Ausbildung sollte die Sicherungseinrichtung im Bereich des Übergangs von Axialweg zu Umfangsweg wirksam sein.In a further embodiment of the invention, it is provided that the range of motion consists of an axial path for placing the closure lid until reaching the initial position and then from a circumferential path to reach the end position, wherein the circumferential path comprises the engagement path. In this embodiment, the securing device should be effective in the area of the transition from Axialweg to circumferential path.

Die Sicherungseinrichtung weist in an sich bekannter weise eine elastisch auslenkbare Sicherungsnase an einem der Teile Einfüllstutzen oder Verschlußdeckel auf, die im Bewegungsbereich eines Eingriffselements an dem anderen Teil liegt, wobei die Sicherungsnase vorzugsweise am Verschlußdeckel angeordnet ist. Dabei kann - ebenfalls in an sich bekannter Weise - das stutzenseitige Eingriffselement einen Eingriffsvorsprung und das deckelseitige Eingriffselement eine Eingriffsnut aufweisen. Das deckelseitige Eingriffselement kann einen Axial- und einen Umfangsabschnitt aufweisen, wobei die Sicherungsnase am Übergang von Axial- zu Umfangsabschnitt angeordnet ist und Auflaufschrägen sowohl in axialer als auch in radialer Richtung aufweist.The safety device has in known manner an elastically deflectable securing lug on one of the parts filler neck or closure lid, which lies in the range of movement of an engagement member on the other part, wherein the securing lug is preferably arranged on the closure lid. In this case - also in a conventional manner - the socket-side engagement element has an engagement projection and the cover-side engagement element has an engagement groove. The cover-side engagement element may have an axial and a peripheral portion, wherein the securing lug is arranged at the transition from axial to circumferential portion and has ramps in both the axial and in the radial direction.

Es versteht sich, daß der Einfüllstutzen und der Verschlußdeckel auch mehrere Paare - vorzugsweise zwei - von komplementären Eingriffselementen aufweisen kann, die derart angeordnet sind, daß der Verschlußdeckel sich in einer entsprechenden Anzahl von Anfangsstellungen aufsetzen läßt, und daß dann auch eine gleiche Anzahl von Sicherungseinrichtungen vorgesehen sind, vorzugsweise so, daß jedem Paar von komplementären Eingriffselementen je eine Sicherungseinrichtung zugeordnet ist, so daß die Sicherungseinrichtungen bei der Bewegung des Verschlußdekkels gleichzeitig überfahren werden.It is understood that the filler neck and the closure cap can also have a plurality of pairs - preferably two - of complementary engagement elements which are arranged such that the closure lid can be placed in a corresponding number of initial positions, and that then also an equal number of securing devices are provided, preferably so that each pair of complementary engagement elements are each assigned a security device, so that the security devices are run over during the movement of the closure lid simultaneously.

In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels näher veranschaulicht. Es zeigen:

Figur 1
die Seitenansicht des erfindungsgemäßen Verschlußdeckels für eine Einfülleinrichtung;
Figur 2
einen Vertikalschnitt durch die erfindungsgemäße Einfülleinrichtung mit dem Verschlußdeckel gemäß Figur 1;
Figur 3
einen Querschnitt durch die Einfülleinrichtung gemäß Figur 2 in der Anfangsstellung des Verschlußdeckels von unten gesehen und
Figur 4
einen Querschnitt durch die Einfülleinrichtung gemäß Figur 3 bei der Bewegung des Verschlußdeckels ausgehend von der Endstellung bei Erreichen der Sicherungseinrichtungen.
In the drawing, the invention with reference to an embodiment is illustrated in more detail. Show it:
FIG. 1
the side view of the closure cap according to the invention for a filling device;
FIG. 2
a vertical section through the filling device according to the invention with the closure lid of Figure 1;
FIG. 3
a cross section through the filling device of Figure 2 in the initial position of the closure lid seen from below and
FIG. 4
a cross section through the filling device according to Figure 3 during the movement of the closure lid, starting from the end position upon reaching the securing devices.

Der in den Figuren dargestellte Verschlußdeckel 1 hat eine horizontale Deckelplatte 2, von dem obenseitig ein Handhabungssteg 3 hochsteht. Untenseitig schließt sich ein im wesentlich zylindrisch ausgebildeter Eingriffsabschnitt 4 an, der nach unten hin offen ist.The closure lid 1 shown in the figures has a horizontal cover plate 2, from the top side a handling web 3 stands up. The bottom side is followed by a substantially cylindrically formed engaging portion 4, which is open at the bottom.

Der Eingriffsabschnitt 4 weist unterhalb der Deckelplatte 2 eine Ringnut 5 auf, in die ein O-Ring 6 eingesetzt ist. Unterhalb der Ringnut 5 sind zwei Eingriffsnuten 7, 8 in die Außenseite des Eingriffsabschnitts 4 eingeformt, die in etwa rechteckigen Querschnitt haben und diametral gegenüberliegend beginnen. Von ihren Anfängen schrauben sie sich jeweils über ca. 120° nach oben und enden in Anschlägen 9, 10.The engagement portion 4 has below the cover plate 2 on an annular groove 5, in which an O-ring 6 is inserted. Below the annular groove 5, two engagement grooves 7, 8 are formed in the outer side of the engagement portion 4, which have approximately rectangular cross-section and start diametrically opposite. From their beginnings they screw each about 120 ° upwards and end in attacks 9, 10.

Die unteren Enden der Eingriffsnuten 7, 8 münden in Axialnuten 11, 12, die zum unteren Ende des Eingriffsabschnitts 4 frei auslaufen. Radial innenseitig werden die Axialnuten 11, 12 durch jeweils einen Sicherungssteg 13, 14 begrenzt, die Teile des Eingriffsabschnitts 4 sind, mit ihm jedoch nur obenseitig verbunden sind. Auf diese Weise können sie elastisch radial nach innen auslenken. Die Sicherungsstege 13, 14 weisen Sicherungsnasen 15, 16 auf, die radial nach außen vorspringen. In nicht ausgelenktem Zustand stehen sie jeweils über den Umfang des Nutgrunds der jeweils benachbarten Eingriffsnut 7, 8 vor, liegen jedoch gegenüber dem Außenumfang des Eingriffsabschnitts 4 zurück. Obenseitig werden die Sicherungsnasen 15, 16 durch Anschlagstege 17, 18 begrenzt, die etwa in Höhe der obenseitigen Begrenzungen der Eingriffsnuten 7, 8 liegen. Zu den Sicherungsnasen 15, 16 gehen axiale Anlaufschrägen 19, 20, die radial nach außen zu den Sicherungsnasen 15, 16 verlaufen. Den Eingriffsnuten 7, 8 gegenüber weisen die Sicherungsstege 13, 14 Umfangsanlaufschrägen 21, 22 auf, die an den Außenkanten der Sicherungsstege 13, 14 auf Höhe des jeweils benachbarten Nutgrunds der Eingriffsnuten 7, 8 beginnen und radial schräg nach außen zu den Sicherungsnasen 15, 16 verlaufen.The lower ends of the engagement grooves 7, 8 open into axial grooves 11, 12, which leak to the lower end of the engagement portion 4 free. Radial on the inside, the axial grooves 11, 12 are bounded by a respective securing web 13, 14, which are parts of the engagement portion 4, but are connected to it only on the top side. In this way, they can deflect elastically radially inward. The securing webs 13, 14 have securing lugs 15, 16 which project radially outward. In undeflected State they are in each case over the circumference of the groove bottom of the respective adjacent engagement groove 7, 8, but are compared to the outer periphery of the engagement portion 4 back. On the upper side, the securing lugs 15, 16 are bounded by stop webs 17, 18, which lie approximately at the level of the upper-side boundaries of the engagement grooves 7, 8. To the securing lugs 15, 16 go axial run-on slopes 19, 20 which extend radially outwardly to the securing lugs 15, 16. The engagement grooves 7, 8 opposite the securing webs 13, 14 peripheral chamfers 21, 22 which begin at the outer edges of the securing webs 13, 14 at the level of the respective adjacent groove bottom of the engagement grooves 7, 8 and radially obliquely outwardly to the locking lugs 15, 16th run.

Der in Figur 1 dargestellte Verschlußdeckel 1 ist in Figur 2 von oben in einen kreisrunden Einfüllstutzen 23 derart eingesetzt, daß dessen Eingriffsabschnitt 4 in den Einfüllstutzen 23 hineinragt. Der Einfüllstutzen 23 ist Teil eines hier nicht näher dargestellten Zylinderkopfdeckels 24. Der Einfüllstutzen 23 dient dem Einfüllen von Öl, das dann über entsprechende Kanäle in die Ölwanne des Verbrennungsmotors hineinläuft.The closure lid 1 shown in Figure 1 is used in Figure 2 from above in a circular filler neck 23 such that its engaging portion 4 projects into the filler neck 23. The filler neck 23 is part of a cylinder head cover 24, not shown here. The filler neck 23 is used to fill with oil, which then runs through corresponding channels in the oil pan of the engine.

Der Einfüllstutzen 23 weist zwei diametral gegenüberliegende und radial nach innen vorstehende Eingriffsvorsprünge 25, 26 auf, deren axiale Erstreckung so bemessen ist, daß sie in die Eingriffsnuten 7, 8 einfahren können. In Figur 2 ist der Verschlußdeckel 1 axial in einer solchen Stellung und soweit eingesetzt, daß die Eingriffsvorsprünge 25, 26 in die Axialnuten 11, 12 einfassen und die Sicherungsstege 13, 14 auf den Oberkanten der Eingriffsvorsprünge 25, 26 aufsitzen, d. h. diese Oberkanten haben Kontakt zu den unteren Bereichen der axialen Anlaufschrägen 19, 20. Damit die Eingriffsvorsprünge 25, 26 auf Höhe der jeweils Eingangsenden der Eingriffsnuten 7, 8 zu liegen kommen, muß der Verschlußdeckel 1 axial nach unten gedrückt werden, bis die Oberseiten der Eingriffsvorsprünge 25, 26 an den Anschlagstegen 17, 18 zur Anlage kommen. Dabei bewirken die axialen Anlaufschrägen 19, 20, daß die Sicherungsstege 13, 14 radial nach innen verschwenken, wodurch ein gewisser Widerstand bei der Axialbewegung des Verschlußdeckels 1 erzeugt wird. Mit Anlage der Eingriffsvorsprünge 25, 26 an den Anschlagstegen 17, 18 ist die Anfangsstellung im oben genannten Sinn erreicht, bei der die Eingriffsvorsprünge 25, 26 vor den Eingangsenden der Axialnuten 11, 12 liegen. Diese Situation ist in Figur 3 zu sehen.The filler neck 23 has two diametrically opposite and radially inwardly projecting engagement projections 25, 26, whose axial extent is dimensioned so that they can retract into the engagement grooves 7, 8. In Figure 2, the closure lid 1 is axially inserted in such a position and so far that the engagement projections 25, 26 in the axial grooves 11, 12 engage and the securing webs 13, 14 sit on the upper edges of the engagement projections 25, 26, ie these upper edges have contact with the lower portions of the axial run-on slopes 19, 20. Thus, the engagement projections 25, 26 in height the respective input ends of the engagement grooves 7, 8 come to rest, the closure lid 1 must be pressed axially down until the tops of the engagement projections 25, 26 come to rest on the stop webs 17, 18. The axial run-on slopes 19, 20 cause the securing webs 13, 14 to pivot radially inward, whereby a certain resistance is generated during the axial movement of the closure lid 1. With engagement of the engagement projections 25, 26 on the stop webs 17, 18, the initial position is achieved in the above sense, in which the engagement projections 25, 26 are located in front of the input ends of the axial grooves 11, 12. This situation can be seen in FIG.

Nunmehr kann der Verschlußdeckel 1 derart in Richtung des Pfeils A verdreht werden, daß die Eingriffsvorsprünge 25, 26 in die Eingriffsnuten 7, 8 einfahren. Hierdurch schraubt sich der Verschlußdeckel 1 in den Einfüllstutzen 23 ein, bis die Eingriffsvorsprünge 25, 26 gegen die Anschläge 9, 10 an den Enden der Eingriffsnuten 7, 8 anschlagen und damit der Verschlußdeckel 1 seine Endstellung erreicht hat.Now, the closure lid 1 can be rotated in the direction of arrow A in such a way that the engagement projections 25, 26 retract into the engagement grooves 7, 8. As a result, the closure cap 1 screws into the filler neck 23 until the engagement projections 25, 26 abut against the stops 9, 10 at the ends of the engagement grooves 7, 8 and thus the closure cap 1 has reached its end position.

Verdreht sich der Verschlußdeckel 1 infolge von Vibrationen oder anderen Einflüssen in Richtung auf seine Anfangsstellung, werden die Eingriffsvorsprünge 24, 25 am Ende der Eingriffsnuten 7, 8 gegen die Umfangsanlaufschrägen 21, 22 anstoßen, wie dies aus Figur 4 zu ersehen ist. Diese wirken als Anschläge, denn trotz ihrer rampenartigen Ausbildung sind die vom Verbrennungsmotor ausgehenden Erschütterungen nicht in der Lage, die Sicherungsstege 13, 14 radial nach innen zu verbiegen. Damit ist gesichert, daß der Verschlußdeckel 1 nicht von dem Einfüllstutzen 23 abfallen kann.If the closure lid 1 is twisted as a result of vibrations or other influences in the direction of its initial position, The engagement projections 24, 25 at the end of the engagement grooves 7, 8 abut against the peripheral chamfers 21, 22, as can be seen from Figure 4. These act as stops, because despite their ramp-like training emanating from the engine vibrations are not able to bend the securing webs 13, 14 radially inwardly. This ensures that the closure lid 1 can not fall off the filler neck 23.

Will man den Verschlußdeckel 1 von dem Einfüllstutzen 23 lösen, verdreht man ihn aus seiner jeweiligen Stellung in Richtung des Pfeils B in der Weise, daß die Eingriffsvorsprünge 25, 26 gegen die Umfangsanlaufschrägen 21, 22 anfahren. Durch Erhöhung der aufzuwendenden Kraft fahren die Eingriffsvorsprünge 25, 26 über die Umfangsanlaufschrägen 21, 22 bis zu den Sicherungsnasen 15, 16 hoch und verbiegen hierdurch die Sicherungsstege 13, 14 radial nach innen. Anschließend kann der Verschlußdeckel 1 axial nach oben herausgezogen werden.If you want to solve the cap 1 of the filler neck 23, you twist it from its respective position in the direction of arrow B in such a way that the engagement projections 25, 26 approach against the peripheral chamfers 21, 22. By increasing the force to be applied, the engagement projections 25, 26 ride over the circumferential chamfers 21, 22 up to the locking lugs 15, 16 and thereby bend the securing webs 13, 14 radially inwardly. Subsequently, the closure lid 1 can be pulled out axially upwards.

Da die Sicherungsstege 13, 14 mit ihren Sicherungsnasen 15, 16 zu Beginn der Eingriffsnuten 7, 8 angeordnet sind, wird die Erhöhung des Bewegungswiderstands beim Übergang von der Axial- in die Umfangsbewegung und umgekehrt erzeugt. Dadurch ist sichergestellt, daß die Bedienungsperson diesen Bewegungswiderstand auch überwindet und nicht als Endanschlag auffaßt. Trotzdem ist ein selbsttätiges Abfallen des Verschlußdeckels 1 nicht möglich.Since the securing webs 13, 14 are arranged with their locking lugs 15, 16 at the beginning of the engagement grooves 7, 8, the increase in the resistance to movement during the transition from the axial to the circumferential movement and vice versa is generated. This ensures that the operator also overcomes this resistance to movement and does not conceive as an end stop. Nevertheless, an automatic drop of the cap 1 is not possible.

Claims (14)

  1. A filler device having a filler neck (23) and a closure cap (1) which has an engagement segment (4), the engagement segment (4) and filler neck (23) having complementary engagement elements (7, 8, 25, 26), for example in order to form a threaded or bayonet connection, which can be brought, by movement of the closure cap (1) with respect to the filler neck (23), from an initial position without engagement via an engagement path subsequent thereto into a final position, and vice versa; a locking device (13, 14) which prevents the closure cap (1) from falling off by itself being arranged and configured in such a way that it generates an elevated resistance to movement in a specific movement region of the closure cap (1), characterized in that the locking device (13, 14) is arranged in such a way that it is effective at a free distance from the final position.
  2. The filler device as defined in Claim 1, characterized in that the locking device (13, 14) is arranged in such a way that it is effective in the first third of the engagement path toward the final position.
  3. The filler device as defined in Claim 2, characterized in that the locking device (13, 14) is arranged in such a way that it is effective at the beginning of the engagement path toward the final position.
  4. The filler device as defined in Claim 1, characterized in that the locking device (13, 14) is arranged in such a way that it is effective in the movement region before the engagement path.
  5. The filler device as defined in Claim 4, characterized in that the locking device (13, 14) is arranged in such a way that it is effective in the movement region before the initial position is reached.
  6. The filler device as defined in Claim 4 or 5, characterized in that the locking device (13, 14) is arranged in such a way that it is effective in the initial position.
  7. The filler device as defined in one of Claims 1 through 6, characterized in that the movement region comprises an axial path for emplacement of the closure cap (1) until the initial position is reached, and, subsequent thereto, a circumferential path until the final position is reached, the circumferential path comprising the engagement path.
  8. The filler device as defined in Claims 6 and 7, characterized in that the locking device (13, 14) is effective in the region of the transition from axial path to circumferential path.
  9. The filler device as defined in one of Claims 1 through 8, characterized in that the locking device (13, 14) has a resiliently deflectable locking lug (15, 16) on one of the parts (filler neck (23) or closure cap (1)), which is located in the movement region of one engagement element (25, 26) against the other part (23).
  10. The filler device as defined in Claim 9, characterized in that the locking lug (15, 16) is arranged on the closure cap (1).
  11. The filler device as defined in Claim 10, characterized in that the neck-mounted engagement element has an engagement projection (25, 26), and the cap-mounted engagement element has an engagement groove (7, 8).
  12. The filler device as defined in Claim 11, characterized in that the cap-mounted engagement element (7, 8) has an axial segment and a circumferential segment.
  13. The filler device as defined in Claim 11 or 12, characterized in that the locking lug (13, 14) is arranged at the transition from the axial to the circumferential segment, and has inclined ramps (19, 20, 21, 22) in the axial and the radial direction.
  14. The filler device as defined in one of Claims 1 through 13, characterized in that the filler neck (23) and the closure cap (1) have several pairs of complementary engagement elements (7, 8, 25, 26), which are arranged in such a way that the closure cap (1) can be emplaced in a corresponding number of initial positions; and that an equal number of locking devices (13, 14) is provided.
EP01106882A 2000-04-12 2001-03-20 Filling device Expired - Lifetime EP1145890B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20006755U DE20006755U1 (en) 2000-04-12 2000-04-12 Filling device
DE20006755U 2000-04-12

Publications (3)

Publication Number Publication Date
EP1145890A2 EP1145890A2 (en) 2001-10-17
EP1145890A3 EP1145890A3 (en) 2003-03-05
EP1145890B1 true EP1145890B1 (en) 2004-12-29

Family

ID=7940170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106882A Expired - Lifetime EP1145890B1 (en) 2000-04-12 2001-03-20 Filling device

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Country Link
US (1) US6905040B2 (en)
EP (1) EP1145890B1 (en)
JP (1) JP2001355423A (en)
AT (1) ATE285911T1 (en)
DE (2) DE20006755U1 (en)
ES (1) ES2234722T3 (en)

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KR101708524B1 (en) * 2009-07-14 2017-02-20 데이나 오토모티브 시스템즈 그룹 엘엘씨 Plastic pan and drain plug assembly
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DE102004049032B4 (en) * 2004-10-08 2006-06-14 Audi Ag Plug for sealing bores in cylinder head covers comprises disk-shaped cap attached to tubular lower section which is split to form two spring strips on opposite sides with flange which engages with seating on cover

Also Published As

Publication number Publication date
DE50104922D1 (en) 2005-02-03
ATE285911T1 (en) 2005-01-15
EP1145890A2 (en) 2001-10-17
ES2234722T3 (en) 2005-07-01
EP1145890A3 (en) 2003-03-05
US6905040B2 (en) 2005-06-14
US20010035415A1 (en) 2001-11-01
DE20006755U1 (en) 2000-08-03
JP2001355423A (en) 2001-12-26

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