EP1708823B1 - Gravity cup for a paint spray gun - Google Patents

Gravity cup for a paint spray gun Download PDF

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Publication number
EP1708823B1
EP1708823B1 EP05701010A EP05701010A EP1708823B1 EP 1708823 B1 EP1708823 B1 EP 1708823B1 EP 05701010 A EP05701010 A EP 05701010A EP 05701010 A EP05701010 A EP 05701010A EP 1708823 B1 EP1708823 B1 EP 1708823B1
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EP
European Patent Office
Prior art keywords
lid
gravity cup
container
spray gun
thread
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.)
Active
Application number
EP05701010A
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German (de)
French (fr)
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EP1708823A1 (en
Inventor
Ewald Schmon
Peter Dettlaff
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SATA GmbH and Co KG
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SATA GmbH and Co KG
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Publication date
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Application filed by SATA GmbH and Co KG filed Critical SATA GmbH and Co KG
Priority to EP07121957A priority Critical patent/EP1902786B1/en
Priority to PL05701010T priority patent/PL1708823T3/en
Publication of EP1708823A1 publication Critical patent/EP1708823A1/en
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Publication of EP1708823B1 publication Critical patent/EP1708823B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun

Definitions

  • the invention relates to a flow cup for a paint spray gun according to the preamble of claim 1.
  • a gravity cup is from the US 2003/0213857 A1 known.
  • Conventional gravity cups for paint spray guns usually have a cup-shaped container, on the underside of an opening with a connector for releasably securing the container is provided on the top of the paint spray gun.
  • the connecting part usually consists of a connecting socket inserted into the container bottom, which has an external thread for screwing into a corresponding threaded opening on the upper side of the paint spray gun.
  • the cup-shaped container is closed on its upper side usually by a suitable lid, which is intended to prevent unwanted escape of color.
  • the production of such flow cups with the separately manufactured and then connected to the container connecting parts is relatively complex and associated with correspondingly high costs.
  • a paint spray gun gravity cup with a container a lid can be placed on the container and a cover arranged on the connector for attaching the flow cup to the paint spray gun is known.
  • lateral projections are provided for engagement in an associated adapter in the manner of a bayonet connection.
  • the object of the invention is to provide a flow cup of the type mentioned, which is inexpensive to produce and without additional adapter without over-rotation of the quick release can be quickly and easily attached to a paint spray gun.
  • a significant advantage of the fluid cup according to the invention is that it consists of two parts that are easy to produce. About the lid located azolelement the gravity cup can be easily and quickly attached to the paint spray gun without additional adapters and quickly removed from this. The lateral stop surface prevents over-rotation of the quick-release fastener.
  • the economically producible gravity cup is easy to fill and can be used either as a disposable cup, for reuse or for the storage of remaining colors or paints.
  • the ringkeilelement is formed by a groove having an obliquely extending in the circumferential direction of a screw surface which comes into engagement with a corresponding mating surface on a lug or projection of the paint spray gun.
  • the fferkeilelement can also be designed as a wedge-shaped or screw-shaped projection which engages in engagement with a corresponding groove on the paint spray gun.
  • a further advantageous embodiment is that the connecting piece contains an additional thread for screwing into a conventional internal thread at an inlet opening of the paint spray gun.
  • the flow cup can also be used for paint spray guns which do not have a quick-connect fitting matching the screw-key element, but have a conventional female threaded connection.
  • the illustrated in Figure 1 flow cup for a paint spray gun contains a cup-shaped container 1 and a lid 2 can be placed on this, on which a connection part 3 for releasably securing the flow cup is formed on a paint spray gun.
  • Both the container 1 and the lid 2 with the integrally formed connection part 3 are expediently produced as injection-molded parts made of plastic.
  • the cup-shaped container 1 is filled in the position shown with the cover 2 removed. Subsequently, the cover 2 can be placed and used with its connection part 3 in the connection opening of an upside-down paint spray gun. For spraying, the paint spray gun can then be turned over so that the flow cup is located at the top of the paint spray gun.
  • the flow cup e.g.
  • a provided on the bottom 4 of the fluid cup - not shown - vent valve open or an initially closed venting channel by means of a pin or the like. To be pierced.
  • a reclosable after use bleed valve or a reclosable vent there is the advantage that the flow cup can also be used to store not completely used up color.
  • the connecting part 3 shown enlarged in Figures 2 and 3 consists of a molded on the conical cover 2 or otherwise integrally formed, tubular connecting piece 5, a front hollow cylindrical guide portion 6, an adjoining external thread 7 for screwing into a conventional internal thread and on the External thread 7 subsequent ringkeilelement 8 for a quick connection of the flow cup with the paint spray gun contains.
  • the fferkeilelement 8 is formed by a groove 9 with a circumferentially oblique screw surface 10 which comes into engagement with a corresponding mating surface on a lug or projection of the paint spray gun.
  • the wedge-shaped groove 9 with the screw 10 and the corresponding counter surface on the paint spray gun are so designed so that the flow cup can be attached to a rotation of the connecting piece 5 of about a quarter to half turn close to the paint spray gun.
  • the connecting piece 5 is tightened for this purpose with its front end face 11 to a corresponding sealing surface within the paint spray gun.
  • the flow cup can also be used for spray guns that have no matching to the fferkeilelement 8 connection, but a conventional connection with internal thread.
  • an end-face stop face 12 for limiting the screw-in depth of the connecting piece 5 when using the external thread 7 for fastening the flow cup is provided on the connecting piece 5.
  • the wedge-shaped groove 9 is arranged in a shoulder 13, which extends approximately over half the circumference of the connecting piece 5. The other half is free, so that a provided on the spray gun approach can get into the groove 9.
  • the groove 9 is open at its front end, while it is closed at the rear end by a web 14 with a stop surface 15. This can prevent over-rotation of the quick release.
  • paragraph 16 is provided with an annular support surface 17.
  • paragraph 16 a known per se and therefore not shown filter can be used.
  • the inner diameter of the shoulder 16 is slightly larger than the outer diameter of the hollow cylindrical guide portion 6.
  • the shoulder 16 can also be used for stacking the lid 2. If a plurality of lids 2 are stacked on top of each other, the connecting piece 5 of the respective lower lid 2 engages with its hollow-cylindrical guide region 6 in the shoulder 16 of the respective upper lid 2 and is guided there.
  • a four-speed quick-action thread shown in Figure 4 is provided with formed on the upper outer circumference of the container 1 external threads 18 and corresponding internal threads 19 on the cover 2.
  • the quick-release thread is designed as a coarse thread with a pitch of 20 mm.
  • the lid 2 can be screwed tightly to the container 1 by about a quarter turn.
  • the four external threads 18 on the container 1 are uniformly distributed over the outer circumference and arranged according to Figure 6 such that the beginning of the 20 a thread 18 is located directly above the end 21 of the next thread 18.
  • the distance x between the beginning 20 of the one thread and the end 21 of the other thread is 5 mm.
  • the thread is further formed in the embodiment shown as a trapezoidal thread with a flank angle of 30 °.
  • the quick-release thread can also be designed as a round thread, pointed thread or with another suitable profile.
  • the outer diameter d of the external thread is between 100 and 110 mm, preferably 104.6 mm.
  • the core diameter D of the external thread is between 90 and 105 mm, preferably 101.7 mm.
  • the width b of the threads on the outside is between 1.1 and 1.3 mm, preferably 1.27 mm.
  • a circumferential wedge-shaped sealing web 22 shown in Figure 5 is further formed, which defines a wedge-shaped annular groove 23 for receiving the upper container rim 24 between its outside and the inside of the lid 2.
  • upwards wedge-shaped narrowing annular groove 23 of the upper container edge 24 is pressed when screwing the lid 2 to the outside to the inner wall of the lid 2, whereby a tight-fitting connection is formed.
  • the sealing web 22 has a sufficiently high height to catch a color still present in the lid when the lid is removed and to prevent overflow into the internal thread.
  • the invention is not limited to the embodiment described above and shown in the drawing.
  • a collapsible insert for receiving the color are inserted.

Landscapes

  • Nozzles (AREA)
  • Closures For Containers (AREA)
  • Table Devices Or Equipment (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

Gravity flow reservoir cup for a paint spray gun has a cup-type container (1), a lid (2) and a connection part (3) for direct fitting of the cup to the spray gun. The cup has a connecting part that is directly formed on the lid with a screw block element for direct connection of the cup to the spray gun.

Description

Die Erfindung betrifft einen Fließbecher für eine Farbspritzpistole nach dem Oberbegriff des Anspruchs 1. Ein derartiger Fließbecher ist aus der US 2003/0213857 A1 bekannt.The invention relates to a flow cup for a paint spray gun according to the preamble of claim 1. Such a gravity cup is from the US 2003/0213857 A1 known.

Herkömmliche Fließbecher für Farbspritzpistolen weisen üblicherweise einen becherförmigen Behälter auf, an dessen Unterseite eine Öffnung mit einem Anschlussteil zur lösbaren Befestigung des Behälters auf der Oberseite der Farbspritzpistole vorgesehen ist. Das Anschlussteil besteht üblicherweise aus einem in den Behälterboden eingesetzten Anschlussstutzen, der ein Außengewinde zum Einschrauben in eine entsprechende Gewindeöffnung an der Oberseite der Farbspritzpistole aufweist. Der becherförmige Behälter wird auf seiner Oberseite in der Regel durch einen geeigneten Deckel verschlossen, der einen unerwünschten Austritt der Farbe verhindern soll. Allerdings ist die Herstellung derartiger Fließbecher mit den gesondert gefertigten und anschließend mit dem Behälter verbundenen Anschlussteilen relativ aufwändig und mit entsprechend hohen Kosten verbunden.Conventional gravity cups for paint spray guns usually have a cup-shaped container, on the underside of an opening with a connector for releasably securing the container is provided on the top of the paint spray gun. The connecting part usually consists of a connecting socket inserted into the container bottom, which has an external thread for screwing into a corresponding threaded opening on the upper side of the paint spray gun. The cup-shaped container is closed on its upper side usually by a suitable lid, which is intended to prevent unwanted escape of color. However, the production of such flow cups with the separately manufactured and then connected to the container connecting parts is relatively complex and associated with correspondingly high costs.

Aus der US 2003/0213857 A1 , die den nächstliegenden Stand der Technik bildet, ist ein Fließbecher für eine Farbspritzpistole mit einem becherförmigen Behälter, einem auf den Behälter aufsetzbaren Deckel und einem Anschlussstutzen mit einem Schraubkeilelement zum Anschluss des Fließbechers an der Farbspritzpistole bekannt. Bei diesem bekannten Fließbecher ist der Anschlussstutzen jedoch an dem becherförmigen Behälter angeformt.From the US 2003/0213857 A1 , which forms the closest prior art, a flow cup for a paint spray gun with a cup-shaped container, a lid can be placed on the container and a connection piece with a Schraubkeilelement for connection of the flow cup to the spray gun known. In this known gravity cup, however, the connecting piece is formed on the cup-shaped container.

In der WO 02/085533 A1 ist ein Farbspritzpistolen-Fließbecher mit einem Behälter, einem auf den Behälter aufsetzbaren Deckel und einem am Deckel angeordneten Anschlussteil zur Befestigung des Fließbechers an der Farbspritzpistole bekannt. An dem Anschlussteil sind seitliche Vorsprünge zum Eingriff in einen dazugehörigen Adapter in Art einer Bajonettverbindung vorgesehen.In the WO 02/085533 A1 a paint spray gun gravity cup with a container, a lid can be placed on the container and a cover arranged on the connector for attaching the flow cup to the paint spray gun is known. At the connecting part lateral projections are provided for engagement in an associated adapter in the manner of a bayonet connection.

In der WO 2004/037433 A1 , die einen Stand der Technik gemäß Art. 54 (3) EPÜ bildet, ist ein Fließbecher offenbart, der einen Behälter und einem auf den Behälter aufsetzbaren Deckel mit einem Anschlussstutzen enthält. An dem Anschlussstutzen ist ein Außengewindeabschnitt zum Schnellanschluss des Fließbechers an der Farbspritzpistole vorgesehen.In the WO 2004/037433 A1 , which forms a prior art under Art. 54 (3) EPC, discloses a flow cup comprising a container and a lid which can be placed on the container Contains a connection piece. An external thread section for quick connection of the flow cup to the paint spray gun is provided on the connecting piece.

Aufgabe der Erfindung ist es, ein Fließbecher der eingangs genannten Art zu schaffen, der kostengünstig herstellbar ist und ohne zusätzlichen Adapter auch ohne Überdrehung des Schnellverschlusses schnell und einfach an einer Farbspritzpistole befestigt werden kann.The object of the invention is to provide a flow cup of the type mentioned, which is inexpensive to produce and without additional adapter without over-rotation of the quick release can be quickly and easily attached to a paint spray gun.

Diese Aufgabe wird durch einen Fließbecher mit den Merkmalen des Anspruchs 1 gelöst. Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by a flow cup having the features of claim 1. Advantageous embodiments and advantageous developments of the invention are the subject of the dependent claims.

Ein wesentlicher Vorteil des erfindungsgemäßen Fließbechers besteht darin, dass er aus zwei einfach herstellbaren Teilen besteht. Über das am Deckel befindliche Schraubkeilelement kann der Fließbecher ohne zusätzliche Adapter einfach und schnell an der Farbspritzpistole befestigt und von dieser auch schnell wieder abgenommen werden. Durch die seitliche Anschlagfläche wird eine Überdrehung des Schnellverschlusses verhindert. Der kostengünstig herstellbare Fließbecher ist einfach befüllbar und kann entweder als Einmalbecher, zur Wiederverwendung oder auch zur Aufbewahrung restlicher Farben oder Lacke eingesetzt werden.A significant advantage of the fluid cup according to the invention is that it consists of two parts that are easy to produce. About the lid located Schraubkeilelement the gravity cup can be easily and quickly attached to the paint spray gun without additional adapters and quickly removed from this. The lateral stop surface prevents over-rotation of the quick-release fastener. The economically producible gravity cup is easy to fill and can be used either as a disposable cup, for reuse or for the storage of remaining colors or paints.

In einer zweckmäßigen Ausgestaltung wird das Schraubkeilelement durch eine Nut mit einer in Umfangsrichtung schräg verlaufenden Schraubfläche gebildet, die in Eingriff mit einer entsprechenden Gegenfläche an einem Ansatz oder Vorsprung der Farbspritzpistole gelangt. Das Schraubkeilelement kann aber auch als keil- oder schraubförmiger Vorsprung ausgeführt sein, der in Eingriff mit einer entsprechenden Nut an der Farbspritzpistole gelangt.In an expedient embodiment, the Schraubkeilelement is formed by a groove having an obliquely extending in the circumferential direction of a screw surface which comes into engagement with a corresponding mating surface on a lug or projection of the paint spray gun. However, the Schraubkeilelement can also be designed as a wedge-shaped or screw-shaped projection which engages in engagement with a corresponding groove on the paint spray gun.

Eine weitere vorteilhafte Ausführung besteht darin, dass der Anschlussstutzen ein zusätzliches Gewinde zum Einschrauben in ein herkömmliches Innengewinde an einer Einlaßöffnung der Farbspritzpistole enthält. Dadurch kann der Fließbecher auch für Farbspritzpistolen verwendet werden, die keinen zu dem Schraubkeilelement passenden Schnellanschluss, jedoch einen herkömmlichen Anschluss mit Innengewinde aufweisen.A further advantageous embodiment is that the connecting piece contains an additional thread for screwing into a conventional internal thread at an inlet opening of the paint spray gun. As a result, the flow cup can also be used for paint spray guns which do not have a quick-connect fitting matching the screw-key element, but have a conventional female threaded connection.

Weitere Besonderheiten und Vorzüge der Erfindung ergeben sich aus der folgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der Zeichnung. Es zeigen:

Figur 1
einen erfindungsgemäßen Fließbecher im Schnitt;
Figur 2
eine Schnittansicht entlang der Linie A-A von Figur 1;
Figur 3
eine Detailansicht des Bereichs X von Figur 1;
Figur 4
eine Ansicht des becherförmigen Behälters und des Deckels eines Fließbechers mit einem Schnellverschlussgewinde zum Aufschrauben des Deckels auf den Behälter;
Figur 5
eine Detailansicht des Bereichs Y von Figur 4;
Figur 6
eine Detailansicht des Bereichs W von Figur 4 und
Figur 7
eine Schnittansicht entlang der Linie A-A von Figur 4.
Other features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. Show it:
FIG. 1
a flow cup according to the invention in section;
FIG. 2
a sectional view taken along the line AA of Figure 1;
FIG. 3
a detailed view of the area X of Figure 1;
FIG. 4
a view of the cup-shaped container and the lid of a flow cup with a quick-connect thread for screwing the lid on the container;
FIG. 5
a detailed view of the area Y of Figure 4;
FIG. 6
a detailed view of the area W of Figure 4 and
FIG. 7
a sectional view taken along the line AA of Figure 4.

Der in Figur 1 dargestellte Fließbecher für eine Farbspritzpistole enthält einen becherförmigen Behälter 1 und einen auf diesen aufsetzbaren Deckel 2, an dem ein Anschlussteil 3 zur lösbaren Befestigung des Fließbechers an einer Farbspritzpistole angeformt ist. Sowohl der Behälter 1 als auch der Deckel 2 mit dem angeformten Anschlussteil 3 sind zweckmäßigerweise als Spritzgussteile aus Kunststoff hergestellt. Der becherförmige Behälter 1 wird in der gezeigten Stellung mit abgenommenem Deckel 2 befüllt. Anschließend kann der Deckel 2 aufgesetzt und mit seinem Anschlußteil 3 in die Anschlussöffnung einer auf den Kopf gestellten Farbspritzpistole eingesetzt werden. Zum Spritzen kann dann die Farbspritzpistole umgedreht werden, so dass sich der Fließbecher an der Oberseite der Farbspritzpistole befindet. Um eine Entlüftung des Fließbechers zu ermöglichen, kann z.B. ein am Boden 4 des Fließbechers vorgesehenes - nicht dargestelltes - Entlüftungsventil geöffnet oder ein zunächst geschlossener Entlüftungskanal mit Hilfe eines Stifts oder dgl. durchstoßen werden. Durch ein nach Gebrauch wieder verschließbares Entlüftungsventil oder eine wieder verschließbare Entlüftungsöffnung ergibt sich der Vorteil, dass der Fließbecher auch zur Aufbewahrung nicht vollständig aufgebrauchter Farbe verwendet werden kann.The illustrated in Figure 1 flow cup for a paint spray gun contains a cup-shaped container 1 and a lid 2 can be placed on this, on which a connection part 3 for releasably securing the flow cup is formed on a paint spray gun. Both the container 1 and the lid 2 with the integrally formed connection part 3 are expediently produced as injection-molded parts made of plastic. The cup-shaped container 1 is filled in the position shown with the cover 2 removed. Subsequently, the cover 2 can be placed and used with its connection part 3 in the connection opening of an upside-down paint spray gun. For spraying, the paint spray gun can then be turned over so that the flow cup is located at the top of the paint spray gun. In order to allow venting of the flow cup, e.g. a provided on the bottom 4 of the fluid cup - not shown - vent valve open or an initially closed venting channel by means of a pin or the like. To be pierced. By a reclosable after use bleed valve or a reclosable vent, there is the advantage that the flow cup can also be used to store not completely used up color.

Der in den Figuren 2 und 3 vergrößert dargestellte Anschlußteil 3 besteht aus einem an dem konischen Deckel 2 angespritzten oder anderweitig angeformten, rohrförmigen Anschlussstutzen 5, der einen vorderen hohlzylindrischen Führungsbereich 6, ein daran anschließendes Außengewinde 7 zum Einschrauben in ein konventionelles Innengewinde und ein an das Außengewinde 7 anschließendes Schraubkeilelement 8 für eine Schnellverbindung des Fließbechers mit der Farbspritzpistole enthält. Bei der gezeigten Ausführung wird das Schraubkeilelement 8 durch eine Nut 9 mit einer in Umfangsrichtung schräg verlaufenden Schraubfläche 10 gebildet, die in Eingriff mit einer entsprechenden Gegenfläche an einem Ansatz oder Vorsprung der Farbspritzpistole gelangt. Die keilförmige Nut 9 mit der Schraubfläche 10 und die entsprechende Gegenfläche an der Farbspritzpistole sind so ausgebildet, dass der Fließbecher bereits bei einer Drehung des Anschlussstutzen 5 von etwa einer viertel bis halben Umdrehung dicht an der Farbspritzpistole befestigt werden kann. Der Anschlussstutzen 5 wird hierzu mit seiner vorderen Stirnfläche 11 an eine entsprechende Dichtfläche innerhalb der Farbspritzpistole angezogen. Über das zusätzliche Außengewinde 7 kann der Fließbecher auch für Farbspritzpistolen verwendet werden, die keinen zu dem Schraubkeilelement 8 passenden Anschluss, jedoch einen herkömmlichen Anschluss mit Innengewinde aufweisen. Zwischen dem Außengewinde 7 und dem Schraubkeilelement 8 ist an dem Anschlussstutzen 5 eine stirnseitige Anschlagfläche 12 zur Begrenzung der Einschraubtiefe des Anschlussstutzen 5 bei der Verwendung des Außengewindes 7 zur Befestigung des Fließbechers vorgesehen.The connecting part 3 shown enlarged in Figures 2 and 3 consists of a molded on the conical cover 2 or otherwise integrally formed, tubular connecting piece 5, a front hollow cylindrical guide portion 6, an adjoining external thread 7 for screwing into a conventional internal thread and on the External thread 7 subsequent Schraubkeilelement 8 for a quick connection of the flow cup with the paint spray gun contains. In the embodiment shown, the Schraubkeilelement 8 is formed by a groove 9 with a circumferentially oblique screw surface 10 which comes into engagement with a corresponding mating surface on a lug or projection of the paint spray gun. The wedge-shaped groove 9 with the screw 10 and the corresponding counter surface on the paint spray gun are so designed so that the flow cup can be attached to a rotation of the connecting piece 5 of about a quarter to half turn close to the paint spray gun. The connecting piece 5 is tightened for this purpose with its front end face 11 to a corresponding sealing surface within the paint spray gun. About the additional external thread 7, the flow cup can also be used for spray guns that have no matching to the Schraubkeilelement 8 connection, but a conventional connection with internal thread. Between the external thread 7 and the screw wedge element 8, an end-face stop face 12 for limiting the screw-in depth of the connecting piece 5 when using the external thread 7 for fastening the flow cup is provided on the connecting piece 5.

Wie besonders aus Figur 2 hervorgeht, ist die keilförmige Nut 9 in einer Schulter 13 angeordnet, die etwa über die Hälfte des Umfangs des Anschlussstutzens 5 verläuft. Die andere Hälfte ist frei, so dass ein an der Farbspritzpistole vorgesehener Ansatz in die Nut 9 gelangen kann. Die Nut 9 ist an ihrem vorderen Ende offen, während sie am hinteren Ende durch einen Steg 14 mit einer Anschlagfläche 15 geschlossen ist. Dadurch kann ein Überdrehen des Schnellverschlusses verhindert werden.As can be seen in particular from FIG. 2, the wedge-shaped groove 9 is arranged in a shoulder 13, which extends approximately over half the circumference of the connecting piece 5. The other half is free, so that a provided on the spray gun approach can get into the groove 9. The groove 9 is open at its front end, while it is closed at the rear end by a web 14 with a stop surface 15. This can prevent over-rotation of the quick release.

Innerhalb des Anschlussstutzens 5 ist ein in Figur 3 gezeigter Absatz 16 mit einer ringförmigen Auflagefläche 17 vorgesehen. In den Absatz 16 ist ein an sich bekannter und daher nicht dargestellter Filter einsetzbar. Der Innendurchmesser des Absatzes 16 ist etwas größer als der Außendurchmesser des hohlzylindrischen Führungsbereichs 6. Dadurch kann der Absatz 16 auch zum Stapeln der Deckel 2 verwendet werden. Wenn mehrere Deckel 2 aufeinander gestapelt sind, greift der Anschlussstutzen 5 des jeweils unteren Deckels 2 mit seinem hohlzylindrischen Führungsbereich 6 in den Absatz 16 des jeweils oberen Deckels 2 ein und wird dort geführt.Within the connecting piece 5 a shown in Figure 3 paragraph 16 is provided with an annular support surface 17. In paragraph 16 a known per se and therefore not shown filter can be used. The inner diameter of the shoulder 16 is slightly larger than the outer diameter of the hollow cylindrical guide portion 6. As a result, the shoulder 16 can also be used for stacking the lid 2. If a plurality of lids 2 are stacked on top of each other, the connecting piece 5 of the respective lower lid 2 engages with its hollow-cylindrical guide region 6 in the shoulder 16 of the respective upper lid 2 and is guided there.

Zur dichten Verbindung des Behälters 1 und des Deckels 2 ist ein in Figur 4 dargestelltes viergängiges Schnellverschlussgewinde mit am oberen Außenumfang des Behälters 1 angeformten Außengewindegängen 18 und dazu korrespondierenden Innengewindegängen 19 an dem Deckel 2 vorgesehen. Das Schnellverschlussgewinde ist als Steilgewinde mit einer Steigung von 20 mm ausgeführt. Dadurch kann der Deckel 2 durch etwa eine viertel Drehung fest mit dem Behälter 1 verschraubt werden. Die vier Außengewindegänge 18 am Behälter 1 sind gleichmäßig über den Außenumfang verteilt und gemäß Figur 6 derart angeordnet, dass der Anfang 20 des einen Gewindegangs 18 direkt über dem Ende 21 des nächsten Gewindegangs 18 liegt. Der Abstand x zwischen dem Anfang 20 des einen Gewindegangs und dem Ende 21 des anderen Gewindegangs beträgt 5 mm. Wie aus Figur 7 hervorgeht, ist das Gewinde bei der gezeigten Ausführung ferner als Trapezgewinde mit einem Flankenwinkel von 30° ausgebildet. Das Schnellverschlussgewinde kann aber auch als Rundgewinde, Spitzgewinde oder mit einen anderen geeigneten Profil ausgeführt sein. Der Außendurchmesser d des Außengewindes beträgt zwischen 100 und 110 mm, vorzugsweise 104,6 mm. Der Kerndurchmesser D des Außengewindes beträgt zwischen 90 und 105 mm, vorzugsweise 101,7 mm. Die Breite b der Gewindegänge an der Außenseite beträgt zwischen 1,1 und 1,3 mm, vorzugsweise 1,27 mm.For tight connection of the container 1 and the lid 2, a four-speed quick-action thread shown in Figure 4 is provided with formed on the upper outer circumference of the container 1 external threads 18 and corresponding internal threads 19 on the cover 2. The quick-release thread is designed as a coarse thread with a pitch of 20 mm. As a result, the lid 2 can be screwed tightly to the container 1 by about a quarter turn. The four external threads 18 on the container 1 are uniformly distributed over the outer circumference and arranged according to Figure 6 such that the beginning of the 20 a thread 18 is located directly above the end 21 of the next thread 18. The distance x between the beginning 20 of the one thread and the end 21 of the other thread is 5 mm. As is apparent from Figure 7, the thread is further formed in the embodiment shown as a trapezoidal thread with a flank angle of 30 °. The quick-release thread can also be designed as a round thread, pointed thread or with another suitable profile. The outer diameter d of the external thread is between 100 and 110 mm, preferably 104.6 mm. The core diameter D of the external thread is between 90 and 105 mm, preferably 101.7 mm. The width b of the threads on the outside is between 1.1 and 1.3 mm, preferably 1.27 mm.

An der Innenseite des Deckels 2 ist ferner ein in Figur 5 gezeigter umlaufender keilförmiger Dichtungssteg 22 angeformt, der zwischen seiner Außenseite und der Innenseite des Deckels 2 eine keilförmige Ringnut 23 für die Aufnahme des oberen Behälterrands 24 begrenzt. Durch die sich in Figur 5 nach oben keilförmig verengende Ringnut 23 wird der obere Behälterrand 24 beim Aufschrauben des Deckels 2 nach außen an die Innenwand des Deckels 2 angedrückt, wodurch eine dicht schließende Verbindung entsteht. Der Dichtungssteg 22 weist eine ausreichend große Höhe auf, um eine noch im Deckel befindliche Farbe beim Ablegen des Deckels aufzufangen und ein Überlaufen in das Innengewinde zu verhindern.On the inside of the lid 2, a circumferential wedge-shaped sealing web 22 shown in Figure 5 is further formed, which defines a wedge-shaped annular groove 23 for receiving the upper container rim 24 between its outside and the inside of the lid 2. By in Figure 5 upwards wedge-shaped narrowing annular groove 23 of the upper container edge 24 is pressed when screwing the lid 2 to the outside to the inner wall of the lid 2, whereby a tight-fitting connection is formed. The sealing web 22 has a sufficiently high height to catch a color still present in the lid when the lid is removed and to prevent overflow into the internal thread.

Die Erfindung ist nicht auf das vorstehend beschriebene und der Zeichnung dargestellte Ausführungsbeispiel beschränkt. So kann z.B. in den Behälter auch ein zusammenfaltbarer Einsatz für die Aufnahme der Farbe eingelegt werden.The invention is not limited to the embodiment described above and shown in the drawing. Thus, e.g. in the container also a collapsible insert for receiving the color are inserted.

Claims (11)

  1. Gravity cup for a paint spray gun with a cup-shaped container (1), a lid (2) which can be fitted on to the container (1), and a connecting part (3) which for fastening the gravity cup to the paint spray gun consists of a connecting stub (5) with a threaded wedge element (8) for direct rapid connection of the gravity cup to the paint spray gun, characterised in that the connecting stub (5) is formed directly on the lid (2) and comprises a lateral stop face (15) to limit the depth to which it is screwed in when the threaded wedge element (8) is used for fastening the gravity cup.
  2. Gravity cup according to claim 1, characterised in that the threaded wedge element (8) is formed by a groove (9) with a screw face (10) running obliquely in the circumferential direction.
  3. Gravity cup according to claim 1 or 2, characterised in that the connecting stub (5) comprises an additional thread (7).
  4. Gravity cup according to claim 3, characterised in that the connecting stub (5) comprises an end stop face (12) to limit the depth to which it is screwed in when the thread (7) is used for fastening the gravity cup.
  5. Gravity cup according to one of claims 1 to 4, characterised in that a shoulder (16) with a contact face (17) is provided in the interior of the connecting stub (5) .
  6. Gravity cup according to one of claims 1 to 5, characterised in that the container (1) and the lid (2) can be connected hermetically to one another by means of a quick-closure thread (18, 19).
  7. Gravity cup according to claim 6, characterised in that the quick-closure thread (18, 19) is a quadruple coarse thread with external thread turns (18) on the upper outside circumference of the container (1) and corresponding internal thread turns (19) on the inside of the lid (2).
  8. Gravity cup according to claim 6 or 7, characterised in that the quick-closure thread (18, 19) has a pitch of 20 mm.
  9. Gravity cup according to one of claims 1 to 8, characterised in that on the inside of the lid (2) there is a wedge-shaped sealing ledge (22) which bounds a wedge-shaped annular groove (23) for receiving the upper edge (24) of the container between its outside and the inside of the lid (2).
  10. Gravity cup according to claim 9, characterised in that the sealing ledge (22) exhibits a sufficient height to catch paint which is in the lid (2) when the lid (2) is removed.
  11. Gravity cup according to one of claims 1 to 10, characterised in that an insert can be placed in the container (1).
EP05701010A 2004-01-22 2005-01-18 Gravity cup for a paint spray gun Active EP1708823B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07121957A EP1902786B1 (en) 2004-01-22 2005-01-18 Gravity cup for a paint spray gun
PL05701010T PL1708823T3 (en) 2004-01-22 2005-01-18 Gravity cup for a paint spray gun

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003438A DE102004003438A1 (en) 2004-01-22 2004-01-22 Gravity cup for a paint spray gun
PCT/EP2005/000437 WO2005070558A1 (en) 2004-01-22 2005-01-18 Gravity cup for a paint spray gun

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07121957A Division EP1902786B1 (en) 2004-01-22 2005-01-18 Gravity cup for a paint spray gun

Publications (2)

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EP1708823A1 EP1708823A1 (en) 2006-10-11
EP1708823B1 true EP1708823B1 (en) 2008-01-16

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EP07121957A Active EP1902786B1 (en) 2004-01-22 2005-01-18 Gravity cup for a paint spray gun
EP05701010A Active EP1708823B1 (en) 2004-01-22 2005-01-18 Gravity cup for a paint spray gun

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US (1) US8444067B2 (en)
EP (2) EP1902786B1 (en)
JP (1) JP4448518B2 (en)
CN (1) CN100430150C (en)
AT (1) ATE383910T1 (en)
AU (1) AU2005205899B2 (en)
CA (1) CA2552390C (en)
DE (4) DE202004021702U1 (en)
ES (1) ES2300974T3 (en)
HK (1) HK1100405A1 (en)
PL (1) PL1708823T3 (en)
TW (1) TWI303587B (en)
WO (1) WO2005070558A1 (en)

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Also Published As

Publication number Publication date
CN100430150C (en) 2008-11-05
US20090014557A1 (en) 2009-01-15
PL1708823T3 (en) 2008-06-30
DE102004003438A1 (en) 2005-08-18
DE202004021702U1 (en) 2010-05-20
AU2005205899A1 (en) 2005-08-04
US8444067B2 (en) 2013-05-21
EP1902786B1 (en) 2009-03-25
EP1708823A1 (en) 2006-10-11
TW200533422A (en) 2005-10-16
CA2552390C (en) 2011-06-28
HK1100405A1 (en) 2007-09-21
JP4448518B2 (en) 2010-04-14
JP2007518555A (en) 2007-07-12
AU2005205899B2 (en) 2009-03-26
TWI303587B (en) 2008-12-01
CA2552390A1 (en) 2005-08-04
DE502005002565D1 (en) 2008-03-06
ES2300974T3 (en) 2008-06-16
EP1902786A1 (en) 2008-03-26
WO2005070558A1 (en) 2005-08-04
DE502005006971D1 (en) 2009-05-07
ATE383910T1 (en) 2008-02-15
CN1909971A (en) 2007-02-07

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