EP1880771A1 - Spray gun - Google Patents

Spray gun Download PDF

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Publication number
EP1880771A1
EP1880771A1 EP06015298A EP06015298A EP1880771A1 EP 1880771 A1 EP1880771 A1 EP 1880771A1 EP 06015298 A EP06015298 A EP 06015298A EP 06015298 A EP06015298 A EP 06015298A EP 1880771 A1 EP1880771 A1 EP 1880771A1
Authority
EP
European Patent Office
Prior art keywords
air cap
spray gun
holding member
gun according
spray
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.)
Granted
Application number
EP06015298A
Other languages
German (de)
French (fr)
Other versions
EP1880771B1 (en
Inventor
Alfred Göhring
Guido Zimmermann
Elmar Krayer
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.)
J Wagner GmbH
Original Assignee
J Wagner 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 J Wagner GmbH filed Critical J Wagner GmbH
Priority to AT06015298T priority Critical patent/ATE422397T1/en
Priority to ES06015298T priority patent/ES2320256T3/en
Priority to EP06015298A priority patent/EP1880771B1/en
Priority to DE502006002824T priority patent/DE502006002824D1/en
Priority to US11/879,451 priority patent/US7540434B2/en
Priority to CN2007101526476A priority patent/CN101125317B/en
Publication of EP1880771A1 publication Critical patent/EP1880771A1/en
Application granted granted Critical
Publication of EP1880771B1 publication Critical patent/EP1880771B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B05B7/083—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter comprising rotatable spray shaping gas jet outlets
    • 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
    • B05B7/2435—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 the carried liquid and the main stream of atomising fluid being brought together by parallel conduits placed one inside the other

Definitions

  • the invention relates to a spray gun for spraying paints and similar viscous media, which is pneumatically or electrically driven, consisting of a gun housing for receiving the drive; the mixing and / or the dosage causing components of the spray gun; a projecting from the gun body handle, a removably attached to the gun body reservoir for receiving the medium to be processed and a mounted on the gun body or a connected thereto intermediate piece or extension pipe union nut and an air cap surrounded by this, with staggered outlet openings for compressed air , by means of which different spray jets are formed, provided and associated with a nozzle needle to be opened by a position-oriented held atomizer nozzle.
  • Spray guns of this type are offered for years by J. Wagner GmbH, Markdorf, under the name W 850 E and have proven themselves in practice well.
  • By rotating the air cap within 90 ° three different shapes can be set to perform different tasks, namely a horizontally oriented flat jet, an omnidirectional jet and a vertically oriented flat jet.
  • the object of the invention is therefore to form the spray gun of the aforementioned type in such a way that in a short time, a change in the shape of the spray jet can be made without causing the air cap is to be touched and without soiling are to be accepted.
  • a beam shape change should rather be accomplished only by pressing the nut or an equivalent holding member.
  • the construction cost, by means of which this is possible, should be kept low, yet should always be made to make a reliable setting with ease of use in the short term.
  • the air cap can in this case be inserted into the union nut or the holding member and firmly connected with these, for example, be welded. But it is also possible to produce the air cap and the union nut or the holding member in one piece and form as an injection molded part.
  • the air cap by means of one or more radially, preferably projecting from the outer circumferential surface and uniformly distributed over the circumference arranged cams, which engage in incorporated into the nut or the retaining member longitudinal grooves, be positively connected thereto, wherein the air cap can also be inserted into a ring and firmly connected to this, on which the radially projecting engaging in longitudinal grooves of the union nut or the holding member cams are formed.
  • the holding member in the scattered spray jets associated angular positions should be positionally oriented with the supporting this component, such as the gun body, locked.
  • the guide members may in this case be designed as guide pins and the receiving these cams with offset in the axial direction recesses for receiving the guide pins in the air cap associated operating positions, but it is also possible to make the guide members as radially resilient lobes and these receiving cams with in the circumferential direction, preferably uniformly distributed locking cams to be provided, between which the lobes are latched in the operating position associated with the air cap.
  • a spring preferably a corrugated spring washer, through which the air cap against the nozzle, an intermediate piece or an extension tube is pressed, so always a good investment of the air cap the atomizer nozzle is guaranteed.
  • the air cap on the housing of the spray gun facing end should be sealed by a labyrinth seal on the supporting this component to prevent air leakage, also this ensures an exact coaxial alignment of the atomizer to the air cap.
  • a spray gun is formed according to the invention, it is possible to accomplish an injection jet setting in a short time and without difficulties, without any contamination being tolerated. Due to the fact that the air cap is connected in a form-fitting manner to the union nut or the holding member in the circumferential direction, only the union nut or holding member is to be rotated accordingly in order to control the air supply from the fixedly installed atomizer nozzle to the outlet openings of the air cap and thus the formation to influence the spray jet. And the holding member assigned different locking positions, it is ensured that only by 'twisting, for example, 45 °, different shapes of the spray jet are given.
  • the atomization of the sucked from the reservoir 4 medium is carried out by compressed air, which is supplied via a line 7 of a spray nozzle 5 through the housing 2.
  • the atomizer nozzle 5 is held by means of a screwed into a machined into the gun housing 2 thread 9 union nut 10.
  • About a handle 6 a engaging in the atomizing nozzle nozzle needle 16 16 can be actuated, also can be made by means of a screw 8, a color amount control.
  • the spray gun 1 is provided with an air cap 11, by which it is possible, as shown in Figures 12a, 12b and 12c, to produce by twisting the air cap 11 three different spray jets I, II and III, namely a horizontally oriented Flat jet I, a round jet II and a vertically oriented flat jet III.
  • the atomizer nozzle 5 is installed in a position-oriented manner in the gun housing 2 and provided with openings 19 for the compressed air, and the air cap 11 has two diametrically opposed horns 12 and 13, in which air outlet openings 14 and 15 are incorporated.
  • the compressed air flowing out of the outlet openings 14 and 15 acts on the color jet which is constantly ejected from the atomizer nozzle 5 in such a way that it is formed into the fuel jets I and III.
  • the supply of compressed air to the outlet openings 14 and 15 is prevented, this flows only from an annular channel 18, by the intervention of the atomizer 5 in a centrally disposed in the air cap 11 bore 17 is formed.
  • the positive connection in the direction of rotation between the air cap 11 and the union nut 10 can be accomplished in different ways. According to Figures 1 and 2, the air cap 11 is formed directly in the union nut 10, so that they are integrally formed and can be manufactured as an injection molded part.
  • the air cap 11 is provided with a fixedly connected to this ring 21, are mounted on the radially projecting cam 22.
  • the union nut 10 also has longitudinal grooves 23 into which the cams 22 engage. The air cap 11 is therefore taken with a rotation of the nut 10 of this and adjusted accordingly.
  • a holding member 31 which is equivalent to the union nut 10 is effective, in turn, positively connected to an air cap 32 and in the spray jaws I, II, III associated operating positions additionally locked. This is accomplished in each case by means of a control cam 35, 35 ', 35 "or 35"', in the guide members 36, 36 ', 36 “or 36'” engage.
  • radially projecting cam 33 For rotationally fixed connection of the air cap 32 with the holding member 31 are also used radially projecting cam 33, which engage in the union nut 31 incorporated longitudinal grooves 34.
  • two oppositely arranged control cams 35 are incorporated into the gun housing 2 and as guide members 36 are provided by the holding member 31 radially inwardly projecting pin 37.
  • the guide members 36 ' are attached to the gun housing 2 and the control cams 35' are provided in the holding member 31.
  • control cams 35 and 35 ' which are effective in the embodiment variants according to FIGS. 4 and 5, are shown in FIG.
  • the unilaterally open cams 35 and 35 ' are in this case equipped with three detent positions a, b and c, in which the bolts 37 can be engaged in the spray jaws I, II and III associated operating positions.
  • the guide members 36 "and 36" ' are each formed by radially resilient tabs 38 and 38' equipped with protuberances, which are U-shaped in the holding member 31 and the housing 2 of the spray gun 1, respectively extending slots 40 are created.
  • the air cap 32 is provided with radially projecting cam 33, which engage in the region of the tabs 38 in the union nut 31. According to Figures 8 and 9, however, the air cap 32 is fixed to the holding member 31 by being integrally formed connected.
  • a corrugated spring washer 41 is inserted through which the air cap 32 against the gun housing 2 or the atomizer nozzle 5 is pressed.
  • a labyrinth seal 42 may be provided between the atomizing nozzle 5 and the air cap 32, in that a circumferential rib 44 projecting axially from the air cap 32 engages in a groove 43 incorporated in the atomizing nozzle 5.
  • a radial outflow of compressed air is prevented in this way, also by the atomizer nozzle 5 is aligned coaxially.
  • a plurality of openings 24 can be provided in the air cap 11 or 32, through which compressed air can flow out of the housing 2 into the atmosphere.
  • the spray jets I, II and III can of course be adjusted in all variants shown by turning the nut 11 and the holding member 31.

Abstract

The spray pistol (1) has a pistol housing (2) for the admission of that propelled mixture or dosage in a construction unit of the spray pistol. A grab handle (3) and storage vessel (4) for the admission of the medium, which is processed in the pistol housing is also provided. Compressed air outlets are provided for different jet sprays, which are provided with a nozzle needle. A connecting nut (10) or equivalent hold element is also provided, which is connected in circumferential direction positively with an air cap (11).

Description

Die Erfindung bezieht sich auf eine Spritzpistole zum Versprühen von Farben und ähnlichen viskosen Medien, die pneumatisch oder elektrisch antreibbar ist, bestehend aus einem Pistolengehäuse zur Aufnahme der den Antrieb; die Vermischung und/oder die Dosierung bewirkenden Bauteile der Spritzpistole; einem von dem Pistolengehäuse abstehenden Griffstück, einem an dem Pistolengehäuse abnehmbar befestigten Vorratsbehälter zur Aufnahme des zu verarbeitenden Mediums sowie einer auf das Pistolengehäuse oder ein mit diesem verbundenes Zwischenstück oder einem Verlängerungsrohr aufgesetzten Überwurfmutter und einer von dieser umgebenen Luftkappe, die mit zueinander versetzten Austrittsöffnungen für Druckluft, mittels der unterschiedliche Spritzstrahlen ausformbar sind, versehen und der eine mittels einer Düsennadel zu öffnenden lageorientiert gehaltenen Zerstäuberdüse zugeordnet ist.The invention relates to a spray gun for spraying paints and similar viscous media, which is pneumatically or electrically driven, consisting of a gun housing for receiving the drive; the mixing and / or the dosage causing components of the spray gun; a projecting from the gun body handle, a removably attached to the gun body reservoir for receiving the medium to be processed and a mounted on the gun body or a connected thereto intermediate piece or extension pipe union nut and an air cap surrounded by this, with staggered outlet openings for compressed air , by means of which different spray jets are formed, provided and associated with a nozzle needle to be opened by a position-oriented held atomizer nozzle.

Spritzpistolen dieser Art werden seit Jahren von der Firma J. Wagner GmbH, Markdorf, unter der Bezeichnung W 850 E angeboten und haben sich in der Praxis gut bewährt. Durch eine Drehung der Luftkappe innerhalb von 90° können hierbei, um unterschiedliche Arbeiten ausführen zu können, drei Strahlformen eingestellt werden, und zwar ein horizontal ausgerichteter Flachstrahl, ein Rundstrahl und ein vertikal ausgerichteter Flachstrahl.Spray guns of this type are offered for years by J. Wagner GmbH, Markdorf, under the name W 850 E and have proven themselves in practice well. By rotating the air cap within 90 ° three different shapes can be set to perform different tasks, namely a horizontally oriented flat jet, an omnidirectional jet and a vertically oriented flat jet.

Um eine dieser Strahlformen einzustellen, ist es bei dieser bekannten Spritzpistole erforderlich, die Überwurfmutter zu lösen und die Luftkappe bei gelöster Überwurfmutter von Hand entsprechen zu verdrehen. Danach ist die Überwurfmutter wiederum anzuziehen. Die Luftkappe ist dabei aber durch Festhalten zu arretieren, um ein ungewolltes Mitdrehen auszuschließen. Auch ist die Luftkappe nur durch Blickkontakt exakt auszurichten, um insbesondere bei der Einstellung zur Erzeugung eines Rundstrahles die Luftzufuhr zu den Austrittsöffnungen abzudecken. Abgesehen von dem erheblichen Zeitaufwand, der erforderlich ist, um diese Verstellungen und Einstellungen vorzunehmen, sind jeweils auch beide Hände des Bedieners der Spritzpistole im Einsatz. Da die mit Farbresten behaftete Luftkappe mit einer Hand angefasst werden muß, sind bei einer Änderung der Strahlform verschmutzte Hände unumgänglich. Oftmals wird daher, um dies zu vermeiden, eine Strahlformänderung nicht vorgenommen.To set one of these beam shapes, it is necessary in this known spray gun to loosen the union nut and to turn the air cap with dissolved union nut by hand. Then tighten the union nut again. However, the air cap is to be locked by holding it to prevent unintentional co-rotation. Also, the air cap is to align exactly by eye contact only to cover the air supply to the outlet openings in particular when setting to produce an omnidirectional. Apart from the considerable amount of time that is required to make these adjustments and settings, both hands of the operator of the spray gun are in use. Since the paint cap carrying the paint has to be touched with one hand, dirty hands are inevitable if the beam shape is changed. Often, therefore, to avoid this, a beam shape change is not made.

Aufgabe der Erfindung ist es demnach, die Spritzpistole der vorgenannten Gattung in der Weise auszubilden, dass in kurzer Zeit eine Änderung der Form des Spritzstrahles vorgenommen werden kann, ohne dass dabei die Luftkappe anzufassen ist und ohne dass somit Verschmutzungen in Kauf zu nehmen sind. Eine Strahlformänderung soll vielmehr lediglich durch Betätigen der Überwurfmutter oder eines äquivalenten Haltegliedes bewerkstelligt werden. Der Bauaufwand, mittels dem dies ermöglicht wird, soll gering gehalten werden, dennoch soll eine stets zuverlässige Einstellung bei einfacher Handhabung kurzfristig vorzunehmen sein.The object of the invention is therefore to form the spray gun of the aforementioned type in such a way that in a short time, a change in the shape of the spray jet can be made without causing the air cap is to be touched and without soiling are to be accepted. A beam shape change should rather be accomplished only by pressing the nut or an equivalent holding member. The construction cost, by means of which this is possible, should be kept low, yet should always be made to make a reliable setting with ease of use in the short term.

Gemäß der Erfindung wird dies bei einer Spritzpistole der eingangs genannten Art dadurch erreicht, dass die Überwurfmutter oder ein dieser äquivalentes Halteglied in Umfangsrichtung formschlüssig mit der Luftkappe verbunden ist.According to the invention, this is achieved in a spray gun of the type mentioned above in that the union nut or one of these equivalent retaining member is connected in the circumferential direction positively to the air cap.

Die Luftkappe kann hierbei in die Überwurfmutter oder das Halteglied eingesetzt und mit diesen fest verbunden, beispielsweise verschweißt sein. Es ist aber auch mögliche, die Luftkappe und die Überwurfmutter bzw. das Halteglied aus einem Stück herzustellen und als Spritzgussteil auszubilden.The air cap can in this case be inserted into the union nut or the holding member and firmly connected with these, for example, be welded. But it is also possible to produce the air cap and the union nut or the holding member in one piece and form as an injection molded part.

Nach einer andersartigen Ausgestaltung kann aber auch die Luftkappe mittels einer oder mehreren radial, vorzugsweise von deren äußeren Mantelfläche abstehenden und gleichmäßig über den Umfang verteilt angeordneten Nocken, die in in die Überwurfmutter bzw. das Haltglied eingearbeitete Längsnuten eingreifen, formschlüssig mit diesen verbunden sein, wobei die Luftkappe auch in einen Ring eingesetzt und mit diesem fest verbunden sein kann, an dem die radial abstehenden in Längsnuten der Überwurfmutter bzw. des Haltegliedes eingreifende Nocken angeformt sind.According to another embodiment, but also the air cap by means of one or more radially, preferably projecting from the outer circumferential surface and uniformly distributed over the circumference arranged cams, which engage in incorporated into the nut or the retaining member longitudinal grooves, be positively connected thereto, wherein the air cap can also be inserted into a ring and firmly connected to this, on which the radially projecting engaging in longitudinal grooves of the union nut or the holding member cams are formed.

Nach einer bevorzugten Ausführungsform sollte das Halteglied in den auszuformenden Spritzstrahlen zugeordneten Winkelstellungen lageorientiert mit dem diese tragenden Bauteil, beispielsweise dem Pistolengehäuse, verrastbar sein.According to a preferred embodiment, the holding member in the auszuformenden spray jets associated angular positions should be positionally oriented with the supporting this component, such as the gun body, locked.

Dies kann in der Weise bewerkstelligt werden, indem zur lageorientierten Einstellung und Halterung des Haltegliedes das das Halteglied tragende Bauteil, zum Beispiel das Pistolengehäuse, oder das Halteglied mit einer öder mehreren, vorzugsweise zwei diametral einander gegenüberliegend angeordneten einseitig offenen und in Umfangsrichtung verlaufenden Steuerkurven und das Halteglied bzw. das dieses tragende Bauteil mit radial nach innen bzw. außen abstehenden Führungsgliedern versehen sind, die in die Steuerkurven eingreifen.This can be accomplished in such a way by the position-oriented adjustment and support of the holding member, the support member bearing member, such as the gun body, or the holding member with a bare or more, preferably two diametrically opposed one-sided open and circumferentially extending cams and the Holding member or this supporting member are provided with radially inwardly or outwardly projecting guide members which engage in the cams.

Die Führungsglieder können hierbei als Führungsstifte ausgebildet und die diese aufnehmenden Steuerkurven mit in Achsrichtung versetzten Ausnehmungen zur Aufnahme der Führungsstifte in den der Luftkappe zugeordneten Betriebsstellungen versehen sein, es ist aber auch möglich, die Führungsglieder als radial federnde Lappen zu gestalten und die diese aufnehmenden Steuerkurven mit in Umfangsrichtung, vorzugsweise gleichmäßig verteilt angeordneten Rastnocken zu versehen, zwischen denen die Lappen in den der Luftkappe zugeordneten Betriebsstellungen verrastbar sind.The guide members may in this case be designed as guide pins and the receiving these cams with offset in the axial direction recesses for receiving the guide pins in the air cap associated operating positions, but it is also possible to make the guide members as radially resilient lobes and these receiving cams with in the circumferential direction, preferably uniformly distributed locking cams to be provided, between which the lobes are latched in the operating position associated with the air cap.

Bei von dem Halteglied baulich getrennter Luftkappe ist es des Weiteren angebracht, zwischen diesen eine Feder, vorzugsweise eine gewellte Federscheibe, anzuordnen, durch die die Luftkappe gegen die Düse, ein Zwischenstück oder ein Verlängerungsrohr pressbar ist, so dass stets eine gute Anlage der Luftkappe an der Zerstäuberdüse gewährleistet ist.When structurally separate from the support member air cap, it is also appropriate to arrange between these a spring, preferably a corrugated spring washer, through which the air cap against the nozzle, an intermediate piece or an extension tube is pressed, so always a good investment of the air cap the atomizer nozzle is guaranteed.

Auch sollte die Luftkappe auf der dem Gehäuse der Spritzpistole zugekehrten Stirnseite über eine Labyrinthdichtung an dem diese abstützenden Bauteil abgedichtet sein, um Luftverluste zu vermeiden, außerdem ist dadurch eine exakte koaxiale Ausrichtung der Zerstäuberdüse zur Luftkappe gewährleistet.Also, the air cap on the housing of the spray gun facing end should be sealed by a labyrinth seal on the supporting this component to prevent air leakage, also this ensures an exact coaxial alignment of the atomizer to the air cap.

Wird eine Spritzpistole gemäß der Erfindung ausgebildet, so ist es möglich, eine Spritzstrahleinstellung in kurzer Zeit und ohne Schwierigkeiten zu bewerkstelligen, ohne dass dabei Verschmutzungen in Kauf zu nehmen sind. Dadurch, dass die Luftkappe in Umfangsrichtung formschlüssig mit der Überwurfmutter bzw. dem Halteglied verbunden ist, ist dazu lediglich die Überwurfmutter bzw. das Halteglied entsprechend zu verdrehen, um die Luftzufuhr aus der ortsfest eingebauten Zerstäuberdüse zu den Austrittsöffnungen der Luftkappe zu steuern und somit die Ausbildung des Spritzstrahles zu beeinflussen. Und werden dem Halteglied unterschiedliche Raststellungen zugeordnet, ist sichergestellt, dass lediglich durch' Verdrehen, um beispielsweise 45°, andersartige Ausformungen des Spritzstrahles gegeben sind.If a spray gun is formed according to the invention, it is possible to accomplish an injection jet setting in a short time and without difficulties, without any contamination being tolerated. Due to the fact that the air cap is connected in a form-fitting manner to the union nut or the holding member in the circumferential direction, only the union nut or holding member is to be rotated accordingly in order to control the air supply from the fixedly installed atomizer nozzle to the outlet openings of the air cap and thus the formation to influence the spray jet. And the holding member assigned different locking positions, it is ensured that only by 'twisting, for example, 45 °, different shapes of the spray jet are given.

Der Bauaufwand, mittels dem dies ermöglicht wird, ist äußerst gering, da nur eine formschlüssige Verbindung der Luftkappe mit der Überwurfmutter bzw. das Halteglied in Drehrichtung, die unterschiedlich gestaltet sein kann, vorzusehen ist. Auch ist die Verstellung sehr leicht und nur mit einer Hand auszuführen, Anpassungen des Spritzstrahts an die jeweils auszuführenden Arbeiten können demnach nahezu ohne Arbeitsunterbrechung erfolgen.The construction cost, by means of which this is possible, is extremely low, since only a positive connection of the air cap with the union nut or the holding member in the direction of rotation, which can be designed differently, is provided. Also, the adjustment is very easy and run only with one hand, adjustments of the spray to the respective work to be carried out can therefore be done almost without interruption.

In der Zeichnung sind einige Ausführungsbeispiele der gemäß der Erfindung ausgebildeten Spritzpistole dargestellt und nachfolgend im Einzelnen erläutert. Hierbei zeigen:

Figur 1
die Spritzpistole in perspektivischer Darstellung, mit abgeschraubter Luftkappe,
Figur 2
einen Teil des Gehäuses der Spritzpistole nach Figur 1 mit abgeschraubter Luftkappe in einer vergrößerten Darstellung,
Figuren 3 bis 5
Ausführungsvarianten der formschlüssigen Verbindung zwischen der Luftkappe und der Überwurfmutter in definierten Raststellungen in Explosionsdarstellungen,
Figur 6
die bei den Ausgestaltungen nach den Figuren 3 bis 5 vorgesehenen Steuerkurven in Abwicklung,
Figuren 7 bis 9
weitere Ausführungsvarianten der formschlüssigen Verbindung zwischen der Luftkappe und einem Halteglied, ebenfalls in definierten Raststellungen und Explosionsdarstellungen,
Figur 10
die bei den Ausgestaltungen nach den Figuren 7 bis 9 vorgesehenen Steuerkurven,
Figur 11
die in das Halteglied eingesetzte Luftkappe mit Dichtung, im Schnitt, und
Figuren 12a, 12b und 12c
die bei der Spritzpistole nach Figur 1 und den jeweiligen Ausführungsvarianten erzeugbaren Spritzstrahlen.
In the drawing, some embodiments of the spray gun designed according to the invention are shown and explained in detail below. Hereby show:
FIG. 1
the spray gun in perspective, with unscrewed air cap,
FIG. 2
a part of the housing of the spray gun of Figure 1 with unscrewed air cap in an enlarged view,
FIGS. 3 to 5
Variants of the positive connection between the air cap and the nut in defined detent positions in exploded views,
FIG. 6
the control cams provided in the embodiments according to FIGS. 3 to 5,
FIGS. 7 to 9
Further embodiments of the positive connection between the air cap and a holding member, also in defined detent positions and exploded views,
FIG. 10
the control cams provided in the embodiments according to FIGS. 7 to 9,
FIG. 11
the air cap used in the holding member with seal, in section, and
Figures 12a, 12b and 12c
the spraying jets that can be generated in the spray gun according to FIG. 1 and the respective embodiments.

Die in Figur 1 dargestellte und mit 1 bezeichnete Spritzpistole dient zum Versprühen von Farben oder Lacken und besteht im Wesentlichen aus einem Pistolengehäuse 2 zur Aufnahme der den Antrieb, die Vermischung und/oder die Dosierung bewirkenden Bauteile, einem von dem Pistolengehäuse 2 abstehenden Griffstück 3 sowie einem Vorratsbehälter 4, in dem das zu verarbeitende Medium bevorratet ist. Die Zerstäubung des aus dem Vorratsbehälter 4 angesaugten Mediums erfolgt durch Druckluft, die über eine Leitung 7 einer Zerstäuberdüse 5 durch das Gehäuse 2 zugeführt wird. Bei dem gezeigten Ausführungsbeispiel ist die Zerstäuberdüse 5 mittels einer in ein in das Pistolengehäuse 2 eingearbeitetes Gewinde 9 aufschraubbaren Überwurfmutter 10 gehalten. Über ein Griffstück 6 ist eine in die Zerstäuberdüse 5 eingreifende Düsennadel 16 betätigbar, außerdem kann mit Hilfe einer Stellschraube 8 eine Farbmengenregelung vorgenommen werden.The spray gun shown in Figure 1 and designated 1 spray paint or paints and consists essentially of a gun body 2 for receiving the drive, the mixing and / or the dosage causing components, a protruding from the gun body 2 handle 3 and a storage container 4, in which the medium to be processed is stored. The atomization of the sucked from the reservoir 4 medium is carried out by compressed air, which is supplied via a line 7 of a spray nozzle 5 through the housing 2. In the embodiment shown, the atomizer nozzle 5 is held by means of a screwed into a machined into the gun housing 2 thread 9 union nut 10. About a handle 6 a engaging in the atomizing nozzle nozzle needle 16 16 can be actuated, also can be made by means of a screw 8, a color amount control.

Die Spritzpistole 1 ist mit einer Luftkappe 11 ausgestattet, durch die es ermöglicht wird, wie dies in den Figuren 12a, 12b und 12c dargestellt ist, durch Verdrehen der Luftkappe 11 drei unterschiedliche Spritzstrahlen I, II und III zu erzeugen, und zwar einen horizontal ausgerichteten Flachstrahl I, einen Rundstrahl II und einen vertikal ausgerichteten Flachstrahl III.The spray gun 1 is provided with an air cap 11, by which it is possible, as shown in Figures 12a, 12b and 12c, to produce by twisting the air cap 11 three different spray jets I, II and III, namely a horizontally oriented Flat jet I, a round jet II and a vertically oriented flat jet III.

Um dies zu bewerkstelligen, ist die Zerstäuberdüse 5 lageorientiert in das Pistolengehäuse 2 eingebaut und mit Durchbrüchen 19 für die Druckluft versehen, und die Luftkappe 11 weist zwei diametral einander gegenüberliegend angeordnete Hörner 12 und 13 auf, in denen Luftaustrittsöffnungen 14 bzw. 15 eingearbeitet sind. Die aus den Austrittsöffnungen 14 und 15 ausströmende Druckluft wirkt im Betrieb der Spritzpistole 1 derart auf den ständig aus der Zerstäuberdüse 5 ausgestoßenen Farbstrahl ein, dass dieser in die Spritstrahlen I und III ausgeformt wird. In der in Figur 12b gezeigten Lage der Zerstäuberdüse 5 ist die Zufuhr von Druckluft zu den Austrittsöffnungen 14 und 15 unterbunden, diese strömt vielmehr nur noch aus einem Ringkanal 18 aus, der durch das Eingreifen der Zerstäuberdüse 5 in eine in der Luftkappe 11 zentrisch angeordnete Bohrung 17 gebildet ist.To accomplish this, the atomizer nozzle 5 is installed in a position-oriented manner in the gun housing 2 and provided with openings 19 for the compressed air, and the air cap 11 has two diametrically opposed horns 12 and 13, in which air outlet openings 14 and 15 are incorporated. During operation of the spray gun 1, the compressed air flowing out of the outlet openings 14 and 15 acts on the color jet which is constantly ejected from the atomizer nozzle 5 in such a way that it is formed into the fuel jets I and III. In the position shown in Figure 12b of the atomizer 5, the supply of compressed air to the outlet openings 14 and 15 is prevented, this flows only from an annular channel 18, by the intervention of the atomizer 5 in a centrally disposed in the air cap 11 bore 17 is formed.

Um auf einfache Weise und in kurzer Zeit eine Verstellung der Luftkappe 11 vornehmen zu können, ist diese in Umfangsrichtung formschlüssig mit der Überwurfmutter 10 verbunden, so dass lediglich die Überwurfmutter um 45° bzw. 90° zu verdrehen ist, um mit der Spritzpistole 1, ausgehend von der dem Spritzstrahl I zugeordneten Lage, den Spritzstrahl II bzw. den Spritzstrahl III erzeugen zu können. Die Luftkappe 11 ist dazu nicht anzufassen, Verschmutzungen sind somit nahezu ausgeschlossen. Nur die mittels eines Innengewindes 20 auf das Pistolengehäuse 2 aufgeschraubte Überwurfmutter 10 ist entsprechend um 45° bzw. um 90° in die den Figuren 12b bzw. 12c entsprechenden Positionen zu bringen.In order to make an adjustment of the air cap 11 in a simple manner and in a short time, this is positively connected in the circumferential direction with the union nut 10, so that only the union nut is to be rotated by 45 ° or 90 ° in order to spray with the spray gun 1, starting from the spray jet I assigned position to be able to produce the spray jet II and the spray jet III. The air cap 11 is not to touch, so contamination is almost impossible. Only the union nut 10, which is screwed onto the pistol housing 2 by means of an internal thread 20, is correspondingly brought through 45 ° or 90 ° into the positions corresponding to FIGS. 12b and 12c.

Die in Drehrichtung formschlüssige Verbindung zwischen der Luftkappe 11 und der Überwurfmutter 10 kann auf unterschiedliche Weise bewerkstelligt werden. Gemäß den Figuren 1 und 2 ist die Luftkappe 11 unmittelbar in die Überwurfmutter 10 eingeformt, so dass diese einstückig ausgebildet sind und als Spritzgussteil hergestellt werden können.The positive connection in the direction of rotation between the air cap 11 and the union nut 10 can be accomplished in different ways. According to Figures 1 and 2, the air cap 11 is formed directly in the union nut 10, so that they are integrally formed and can be manufactured as an injection molded part.

Gemäß Figur 3 ist die Luftkappe 11 mit einem mit dieser fest verbundenen Ring 21 versehen, an dem radial abstehende Nocken 22 angebracht sind. Die Überwurfmutter 10 weist des Weiteren Längsnuten 23 auf, in die die Nocken 22 eingreifen. Die Luftkappe 11 wird demnach bei einer Verdrehung der Überwurfmutter 10 von dieser mitgenommen und entsprechend verstellt.According to Figure 3, the air cap 11 is provided with a fixedly connected to this ring 21, are mounted on the radially projecting cam 22. The union nut 10 also has longitudinal grooves 23 into which the cams 22 engage. The air cap 11 is therefore taken with a rotation of the nut 10 of this and adjusted accordingly.

Bei den Ausgestaltungen nach den Figuren 4 bis 10 ist ein Halteglied 31, das äquivalent zu der Überwurfmutter 10 wirksam ist, in Drehrichtung wiederum formschlüssig mit einer Luftkappe 32 verbunden und in den den Spritzstrahlen I, II, III zugeordneten Betriebsstellungen zusätzlich arretierbar. Dies wird jeweils mittels einer Steuerkurve 35, 35', 35" bzw. 35"' bewerkstelligt, in die Führungsglieder 36, 36', 36" bzw. 36'" eingreifen. Zur drehfesten Verbindung der Luftkappe 32 mit dem Halteglied 31 dienen ebenfalls radial abstehende Nocken 33, die in in die Überwurfmutter 31 eingearbeitete Längsnuten 34 eingreifen.In the embodiments according to FIGS 4 to 10, a holding member 31 which is equivalent to the union nut 10 is effective, in turn, positively connected to an air cap 32 and in the spray jaws I, II, III associated operating positions additionally locked. This is accomplished in each case by means of a control cam 35, 35 ', 35 "or 35"', in the guide members 36, 36 ', 36 "or 36'" engage. For rotationally fixed connection of the air cap 32 with the holding member 31 are also used radially projecting cam 33, which engage in the union nut 31 incorporated longitudinal grooves 34.

Bei der Ausgestaltung nach Figur 4 sind in das Pistolengehäuse 2 zwei einander gegenüberliegend angeordnete Steuerkurven 35 eingearbeitet und als Führungsglieder 36 sind zwei von dem Halteglied 31 radial nach innen abstehende Bolzen 37 vorgesehen. Gemäß Figur 5 sind die Führungsglieder 36' dagegen an dem Pistolengehäuse 2 angebracht und die Steuerkurven 35' sind in dem Halteglied 31 vorgesehen.In the embodiment of Figure 4, two oppositely arranged control cams 35 are incorporated into the gun housing 2 and as guide members 36 are provided by the holding member 31 radially inwardly projecting pin 37. In contrast, according to FIG. 5, the guide members 36 'are attached to the gun housing 2 and the control cams 35' are provided in the holding member 31.

In welcher Weise die bei den Ausführungsvarianten nach den Figuren 4 und 5 wirksamen Steuerkurven 35 und 35' gestaltet sind, ist der Figur 6 zu entnehmen. Die einseitig offenen Steuerkurven 35 bzw. 35' sind hierbei mit drei Raststellungen a, b und c ausgestattet, in die die Bolzen 37 in den den Spritzstrahlen I, II bzw. III zugeordneten Betriebsstellungen eingerastet werden können.The manner in which the control cams 35 and 35 ', which are effective in the embodiment variants according to FIGS. 4 and 5, are shown in FIG. The unilaterally open cams 35 and 35 'are in this case equipped with three detent positions a, b and c, in which the bolts 37 can be engaged in the spray jaws I, II and III associated operating positions.

Nach den Figuren 7, 8 und 9 sind die Führungsglieder 36" und 36"' jeweils durch radial federnde mit Höckern ausgestattete Lappen 38 bzw. 38' gebildet, die durch in das Halteglied 31 bzw. das Gehäuse 2 der Spritzpistole 1 eingearbeitete U-förmig verlaufende Schlitze 40 geschaffen sind. Die wiederum einseitig offenen Steuerkurven 35" und 35"' weisen, wie dies auch der Figur 10 zu entnehmen ist, bei diesen Ausgestaltungen Rastnocken 39 in Form von Erhöhungen auf, zwischen denen die Lappen 38 bzw. 38' in den der Luftkappe 32 in den drei zugeordneten Betriebsstellungen arretierbar sind.According to FIGS. 7, 8 and 9, the guide members 36 "and 36" 'are each formed by radially resilient tabs 38 and 38' equipped with protuberances, which are U-shaped in the holding member 31 and the housing 2 of the spray gun 1, respectively extending slots 40 are created. The turn open on one side cams 35 "and 35" ', as can also be seen in Figure 10, in these embodiments locking cam 39 in the form of elevations, between which the tabs 38 and 38' in the air cap 32 in the three assigned operating positions can be locked.

Nach Figur 7 ist die Luftkappe 32 mit radial abstehenden Nocken 33 versehen, die in dem Bereich der Lappen 38 in die Überwurfmutter 31 eingreifen. Gemäß den Figuren 8 und 9 ist dagegen die Luftkappe 32 fest mit dem Halteglied 31, indem diese einstückig ausgebildet ist, verbunden.According to Figure 7, the air cap 32 is provided with radially projecting cam 33, which engage in the region of the tabs 38 in the union nut 31. According to Figures 8 and 9, however, the air cap 32 is fixed to the holding member 31 by being integrally formed connected.

Um stets eine gute Anlage der Luftkappe 32 an dem Pistolengehäuse 2 bzw. der Zerstäuberdüse 5 zu gewährleisten, ist bei den Ausgestaltungen nach den Figuren 4 und 5 zwischen der Überwurfmutter 31 und der Luftkappe 32 eine gewellte Federscheibe 41 eingesetzt, durch die die Luftkappe 32 gegen das Pistolengehäuse 2 bzw. die Zerstäuberdüse 5 gedrückt wird. Des Weiteren kann, wie dies in Figur 11 gezeigt ist, zwischen der Zerstäuberdüse 5 und der Luftkappe 32 eine Labyrinthdichtung 42 vorgesehen werden, indem ein von der Luftkappe 32 axial abstehender umlaufender Steg 44 in eine in die Zerstäuberdüse 5 eingearbeitete Nut 43 eingreift. Ein radiales Abströmen von Druckluft wird auf diese Weise verhindert, außerdem wird dadurch die Zerstäuberdüse 5 koaxial ausgerichtet. Des Weiteren können, um bei verschlossenen Austrittsöffnungen 14 und 15 einem Druckaufbau in dem Pistolengehäuse 2 entgegenzuwirken, in der Luftkappe 11 bzw. 32 mehrere Öffnungen 24 vorgesehen werden, durch die Druckluft aus dem Gehäuse 2 in die Atmosphäre abströmen kann.In order to always ensure a good contact of the air cap 32 on the gun housing 2 and the atomizer 5, in the embodiments of Figures 4 and 5 between the nut 31 and the air cap 32, a corrugated spring washer 41 is inserted through which the air cap 32 against the gun housing 2 or the atomizer nozzle 5 is pressed. Furthermore, as shown in FIG. 11, a labyrinth seal 42 may be provided between the atomizing nozzle 5 and the air cap 32, in that a circumferential rib 44 projecting axially from the air cap 32 engages in a groove 43 incorporated in the atomizing nozzle 5. A radial outflow of compressed air is prevented in this way, also by the atomizer nozzle 5 is aligned coaxially. Furthermore, in order to counteract pressure build-up in the gun housing 2 when the outlet openings 14 and 15 are closed, a plurality of openings 24 can be provided in the air cap 11 or 32, through which compressed air can flow out of the housing 2 into the atmosphere.

Die Spritzstrahlen I, II und III können selbstverständlich bei allen gezeigten Ausführungsvarianten durch Verdrehen der Überwurfmutter 11 bzw. des Haltegliedes 31 eingestellt werden.The spray jets I, II and III can of course be adjusted in all variants shown by turning the nut 11 and the holding member 31.

Claims (11)

Spritzpistole (1) zum Versprühen von Farben und ähnlichen viskosen Medien, die pneumatisch oder elektrisch antreibbar ist, bestehend aus einem Pistolengehäuse (2) zur Aufnahme der den Antrieb, die Vermischung und/oder die Dosierung bewirkenden Bauteile der Spritzpistole (1), einem von dem Pistolengehäuse (2) abstehenden Griffstück (3), einem an dem Pistolengehäuse (2) abnehmbar befestigten Vorratsbehälter (4) zur Aufnahme des zu verarbeitenden Mediums sowie einer auf das Pistolengehäuse (2) oder ein mit diesem verbundenes Zwischenstück oder einem Verlängerungsrohr aufgesetzten Überwurfmutter (10) und einer von dieser umgebenen Luftkappe (11), die mit zueinander versetzten Austrittsöffnungen (14, 15) für Druckluft, mittels der unterschiedliche Spritzstrahlen (I, II, III) ausformbar sind, versehen und der eine mittels einer Düsennadel (17) zu öffnenden lageorientiert gehaltenen Zerstäuberdüse (16) zugeordnet ist,
dadurch gekennzeichnet,
dass die Überwurfmutter (10) oder ein dieser äquivalentes Halteglied (31) in Umfangsrichtung formschlüssig mit der Luftkappe (11, 32) verbunden ist.Spray gun (1) for spraying paints and similar viscous media, which is pneumatically or electrically driven, consisting of a gun housing (2) for receiving the drive, the mixing and / or the dosage causing components of the spray gun (1), one of the pistol casing (2) projecting handle (3), one on the gun body (2) removably mounted reservoir (4) for receiving the medium to be processed and on the gun housing (2) or connected to this adapter or an extension tube cap nut ( 10) and an air cap (11) surrounded by the latter and provided with staggered discharge openings (14, 15) for compressed air, by means of which different spraying jets (I, II, III) can be formed, and the one by means of a nozzle needle (17) associated with the orientation-oriented atomizing nozzle (16),
characterized,
that the union nut (10) or one of these equivalent retaining member (31) in Circumferential direction is positively connected to the air cap (11, 32). Spritzpistole nach Anspruch 1,
dadurch gekennzeichnet,
dass die Luftkappe (11, 32) in die Überwurfmutter (10) oder in das Halteglied (31) eingesetzt und mit diesen fest verbunden, beispielsweise verschweißt, ist.Spray gun according to claim 1,
characterized,
that the air cap (11, 32) in the union nut (10) or in the holding member (31) inserted and fixedly connected to these, for example welded, is. Spritzpistole nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Luftkappe (11, 32) und die Überwurfmutter (10) bzw. das Halteglied (31) aus einem Stück bestehen und als Spritzgussteil ausgebildet sind.Spray gun according to claim 1 or 2,
characterized,
that the air cap (11, 32) and the union nut (10) or the holding member (31) consist of one piece and are formed as an injection molded part. Spritzpistole nach Anspruch 1,
dadurch gekennzeichnet,
dass die Luftkappe (10) mittels einer oder mehrerer radial, vorzugsweise von deren äußeren Mantelfläche abstehenden und gleichmäßig über den Umfang verteilt angeordneten Nocken (22), die in in die Überwurfmutter (10) bzw. das Halteglied (31) eingearbeitete Längsnuten (23) eingreifen, formschlüssig mit diesen verbunden ist.Spray gun according to claim 1,
characterized,
in that the air cap (10) is formed by means of one or more cams (22) which project radially and are distributed uniformly over the circumference of the outer lateral surface and which engage in longitudinal grooves (23) incorporated in the union nut (10) or the holding member (31). engage, positively connected with these. Spritzpistole nach Anspruch 4,
dadurch gekennzeichnet,
dass die Luftkappe (11) in einen Ring (21) eingesetzt und mit diesem fest Überwurfmutter (10) bzw. des Haltegliedes (31) eingreifende Nocken (22) angeformt sind.Spray gun according to claim 4,
characterized,
that the air cap (11) inserted into a ring (21) and fixed with this Union nut (10) and the holding member (31) engaging cam (22) are integrally formed. Spritzpistole nach Anspruch 1,
dadurch gekennzeichnet,
dass das Haltegliedrwurfmutter (31) in den auszuformenden Spritzstrahlen (I, II, III) zugeordneten Winkelstellungen lageorientiert mit dem dieses tragenden Bauteil, beispielsweise dem Pistolengehäuse (2), verrastbar ist.Spray gun according to claim 1,
characterized,
in that the holding member nut (31) in the angular positions assigned to the spray jaws (I, II, III) to be formed can be latched in a position-oriented manner with the component carrying the latter, for example the gun housing (2). Spritzpistole nach Anspruch 6,
dadurch gekennzeichnet,
dass zur lageorientierten Einstellung und Halterung der Luftkappe (32) das das Halteglied (31) tragende Bauteil; zum Beispiel das Pistolengehäuse (2), oder das Halteglied (31) mit einer oder mehreren, vorzugsweise zwei diametral einander gegenüberliegend angeordneten einseitig offenen und in Umfangsrichtung verlaufenden Steuerkurven (35, 35', 35", 35"') und das Halteglied (31) bzw. das dieses tragende Bauteil mit radial nach innen bzw. außen abstehenden Führungsgliedern (36, 36', 36", 36"') versehen sind, die in die Steuerkurven (35, 35', 35", 35"') eingreifen.Spray gun according to claim 6,
characterized,
for the position-oriented adjustment and mounting of the air cap (32), the component supporting the holding member (31); For example, the gun housing (2), or the holding member (31) with one or more, preferably two diametrically opposed one-sided open and circumferentially extending cams (35, 35 ', 35 ", 35"') and the holding member (31 ) or this supporting component with radially inwardly or outwardly projecting guide members (36, 36 ', 36 ", 36"') are provided, which engage in the control cams (35, 35 ', 35 ", 35"') , Spritzpistole nach Anspruch 7,
dadurch gekennzeichnet,
dass die Führungsglieder (36, 36') als Führungsstifte (37) ausgebildet und die diese aufnehmenden Steuerkurven (35, 35') mit in Achsrichtung versetzten diese aufnehmenden Steuerkurven (35, 35') mit in Achsrichtung versetzten Ausnehmungen (a, b, c) zur Aufnahme der Führungsstifte (37) in den der Luftkappe (32) zugeordneten Betriebsstellungen versehen sind.Spray gun according to claim 7,
characterized,
in that the guide members (36, 36 ') are designed as guide pins (37) and the control cams (35, 35') receiving them are offset in the axial direction these receiving control cams (35, 35 ') with offset in the axial direction recesses (a, b, c) for receiving the guide pins (37) in the air cap (32) associated operating positions are provided. Spritzpistole nach Anspruch 7
dadurch gekennzeichnet,
dass die Führungsglieder (36", 36"') als radial federnde Lappen (38) ausgebildet und die diese aufnehmenden Steuerkurven (35", 35"') mit in Umfangsrichtung, vorzugsweise gleichmäßig verteilt angeordneten Rastnocken (39) versehen sind, zwischen denen die Lappen (38) in den der Luftkappe (32) zugeordneten Betriebsstellungen verrastbar sind.Spray gun according to claim 7
characterized,
that the guide members (36 ", 36"') formed as a radially resilient tongue (38) and receiving the same control curves (35 ", 35"' are provided with arranged in the circumferential direction, preferably uniformly distributed locking cams (39)) between which the Flaps (38) in the air cap (32) associated operating positions can be latched. Spritzpistole nach Anspruch 1 bis 9,
dadurch gekennzeichnet,
dass bei von dem Halteglied (31) baulich getrennter Luftkappe (32) zwischen diesen eine Feder (41), vorzugsweise eine gewellte Federscheibe, angeordnet ist, durch die die Luftkappe (32) gegen die Zerstäuberdüse (5), ein Zwischenstück oder ein Verlängerungsrohr pressbar ist.Spray gun according to claim 1 to 9,
characterized,
in that a spring (41), preferably a corrugated spring washer, is arranged between the air cap (32) structurally separate from the holding member (31), by means of which the air cap (32) can be pressed against the atomizer nozzle (5), an intermediate piece or an extension tube is. Spritzpistole nach Anspruch 1 bis 10,
dadurch gekennzeichnet,
dass die Luftkappe (32) auf der dem Gehäuse (2) der Spritzpistole (1) zugekehrten Stirnseite über eine Labyrinthdichtung (42) an dem diese abstützenden Bauteil (2) abgedichtet ist.Spray gun according to claim 1 to 10,
characterized,
that the air cap (32) on the housing (2) of the spray gun (1) facing end face is sealed by a labyrinth seal (42) on which this supporting component (2).
EP06015298A 2006-07-22 2006-07-22 Spray gun Not-in-force EP1880771B1 (en)

Priority Applications (6)

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AT06015298T ATE422397T1 (en) 2006-07-22 2006-07-22 SPRAY GUN
ES06015298T ES2320256T3 (en) 2006-07-22 2006-07-22 SPRAY GUN.
EP06015298A EP1880771B1 (en) 2006-07-22 2006-07-22 Spray gun
DE502006002824T DE502006002824D1 (en) 2006-07-22 2006-07-22 spray gun
US11/879,451 US7540434B2 (en) 2006-07-22 2007-07-17 Spray gun
CN2007101526476A CN101125317B (en) 2006-07-22 2007-07-20 Spray gun

Applications Claiming Priority (1)

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AT (1) ATE422397T1 (en)
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US8925836B2 (en) 2008-10-29 2015-01-06 Sata Gmbh & Co. Kg Gravity cup for a paint sprayer
EP2189225A1 (en) 2008-11-19 2010-05-26 J. Wagner GmbH Colour spray gun with beam distortion
EP2189226A1 (en) 2008-11-19 2010-05-26 J. Wagner GmbH Air cap with separate formed air horn and his manufacturing process with injection mould
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CN103501918A (en) * 2011-05-06 2014-01-08 J·瓦格纳有限责任公司 Paint-spraying apparatus
CN103501918B (en) * 2011-05-06 2016-08-17 J·瓦格纳有限责任公司 Coating material ejector
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USD740393S1 (en) 2013-09-27 2015-10-06 Sata Gmbh & Co. Kg Paint spray gun
US9409197B2 (en) 2013-12-18 2016-08-09 Sata Gmbh & Co. Kg Air nozzle closure for a spray gun
USD798419S1 (en) 2014-07-31 2017-09-26 Sata Gmbh & Co. Kg Paint spray gun
US10702879B2 (en) 2014-07-31 2020-07-07 Sata Gmbh & Co. Kg Spray gun manufacturing method, spray gun, spray gun body and cover
USD770593S1 (en) 2014-07-31 2016-11-01 Sata Gmbh & Co. Kg Paint spray gun
USD835235S1 (en) 2014-07-31 2018-12-04 Sata Gmbh & Co. Kg Paint spray gun
USD758537S1 (en) 2014-07-31 2016-06-07 Sata Gmbh & Co. Kg Paint spray gun rear portion
USD768820S1 (en) 2014-09-03 2016-10-11 Sata Gmbh & Co. Kg Paint spray gun with pattern
US11141747B2 (en) 2015-05-22 2021-10-12 Sata Gmbh & Co. Kg Nozzle arrangement for a spray gun
US10464076B2 (en) 2015-12-21 2019-11-05 Sata Gmbh & Co. Kg Air cap and nozzle assembly for a spray gun, and spray gun
US10471449B2 (en) 2016-08-19 2019-11-12 Sata Gmbh & Co. Kg Air cap arrangement and spray gun
US10835911B2 (en) 2016-08-19 2020-11-17 Sata Gmbh & Co. Kg Trigger for a spray gun and spray gun having same
WO2018104871A1 (en) * 2016-12-06 2018-06-14 3M Innovative Properties Company Spray gun air cap with retention means
US11801521B2 (en) 2018-08-01 2023-10-31 Sata Gmbh & Co. Kg Main body for a spray gun, spray guns, spray gun set, method for producing a main body for a spray gun and method for converting a spray gun
US11826771B2 (en) 2018-08-01 2023-11-28 Sata Gmbh & Co. Kg Set of nozzles for a spray gun, spray gun system, method for embodying a nozzle module, method for selecting a nozzle module from a set of nozzles for a paint job, selection system and computer program product
US11865558B2 (en) 2018-08-01 2024-01-09 Sata Gmbh & Co. Kg Nozzle for a spray gun, nozzle set for a spray gun, spray guns and methods for producing a nozzle for a spray gun
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics

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ATE422397T1 (en) 2009-02-15
US7540434B2 (en) 2009-06-02
DE502006002824D1 (en) 2009-03-26
EP1880771B1 (en) 2009-02-11
ES2320256T3 (en) 2009-05-20
CN101125317A (en) 2008-02-20
CN101125317B (en) 2013-05-29
US20080029619A1 (en) 2008-02-07

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