EP2246118B1 - Jet pipe - Google Patents

Jet pipe Download PDF

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Publication number
EP2246118B1
EP2246118B1 EP10161575.5A EP10161575A EP2246118B1 EP 2246118 B1 EP2246118 B1 EP 2246118B1 EP 10161575 A EP10161575 A EP 10161575A EP 2246118 B1 EP2246118 B1 EP 2246118B1
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EP
European Patent Office
Prior art keywords
jet pipe
tube
grip
pipe according
nozzle
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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.)
Not-in-force
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EP10161575.5A
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German (de)
French (fr)
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EP2246118A1 (en
Inventor
Oliver J. Poeschl
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Individual
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Individual
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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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0278—Arrangement or mounting of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor

Definitions

  • the invention relates to a jet pipe for connection to a device for discharging a pressurized cleaning medium, with a connection part for establishing a flow connection with the dispensing device and with a subsequent to the connection part curved pipe part, arranged at the free end of a nozzle for dispensing the cleaning medium is.
  • Blast pipes that can be connected to a device for dispensing a pressurized cleaning medium, are known in various embodiments.
  • a cleaning medium for example, a liquid can be used, in particular water, which is under pressure.
  • the jet pipe can be connected to a spray gun, which can be connected to the free end of a pressure hose for the cleaning medium.
  • jet pipes are known, which can be connected to the spray gun of a high-pressure cleaner. At its free end, the jet pipes carry a nozzle, with the aid of which a jet of the pressurized cleaning medium can be directed, for example, to an object to be cleaned.
  • a pressurized gas can also be used to clean an object, for example compressed air. It can also be provided that, for example, a mixture of dry ice and compressed air is directed onto an object to be cleaned by means of the jet pipe.
  • the rigid pipe part is curved.
  • jet pipes can be used, for example, for cleaning vehicle undersides or fenders.
  • an object to be cleaned is covered by a cover having passage openings, wherein the jet pipe is to be passed through the passage openings.
  • drainage channels that serve to drain sealed surfaces are covered by a grid that is connected to the drainage channel by means of a clamping, plug-in, hinged or threaded connection. If such drainage channels are to be cleaned, it is often necessary that the Cover to remove, otherwise the pressurized cleaning medium, such as a pressurized liquid, can not be directed directly into the drainage channel.
  • GB 971,760 A describes a cleaning head with a mixing nozzle for mixing two media.
  • the FR 2 631 817 A shows a hand spray head with a pipe piece with a nozzle provided at the end.
  • Object of the present invention is to develop a jet pipe of the type mentioned in such a way that it has extended uses and in particular allows for easier cleaning of covered drainage channels.
  • the diameter of the tube part at its free end is essentially defined by the nozzle, which is usually screwed onto the tube part.
  • the nozzle is immersed in the pipe part.
  • the diameter of the jet pipe in the region of the free end of the pipe part including the nozzle can be kept low. This in turn gives the possibility to pass the tube part with its free end portion through openings of the covers of drainage channels, so that the nozzle is immersed in the drainage channel and thereby the exiting the nozzle cleaning medium can enter directly into the drainage channel for the removal of dirt.
  • the nozzle is completely received by the pipe part, ie the nozzle completely immersed in the free end of the pipe part.
  • the nozzle preferably requires no extension of the diameter of the pipe part, but it is not easily recognizable from the outside.
  • the diameter of the jet pipe at the free end of the pipe part can be kept particularly low. This in turn gives the possibility to pass the pipe part through narrow openings. The applications of the jet pipe are thereby considerably expanded.
  • the nozzle is detachably connectable to the pipe part, in particular screwed. This makes it possible to replace the nozzle, so that depending on the cleaning task, a special nozzle can be used.
  • the nozzle is screwed into the pipe part.
  • the tube part may have at its free end an internal thread which cooperates with an external thread of the nozzle.
  • the diameter of the pipe part in its area surrounding the nozzle is not greater than in the remaining region of the pipe part.
  • the tube part starting from the connecting part up to the area surrounding the nozzle, has a constant diameter.
  • the diameter of the pipe part is in a particularly preferred embodiment of the invention a maximum of 10 mm to 12 mm.
  • the outer diameter of the pipe part over its entire length is not more than 9 mm.
  • the tube part comprises a first and a second pipe section, wherein the first pipe section adjoins the connecting part and is rectilinear and the second pipe section is oriented at an angle to the first pipe section and carries at its free end the nozzle, wherein the distance of the free end of second pipe section from the longitudinal axis of the first pipe section is less than 10 cm, in particular less than 6 cm.
  • a relatively short distance between the longitudinal axis of the first pipe section and the free end of the second pipe section has the advantage that the pipe part can also be passed through relatively short openings of covers of drainage channels.
  • a relatively short distance between the longitudinal axis of the first pipe section and the free end of the second pipe section facilitates the handling of the jet pipe in the cleaning of relatively shallow drainage channels.
  • the first pipe section is longer than the second pipe section.
  • the first pipe section is at least twice as long as the second pipe section.
  • the length of the first pipe section is a multiple of the length of the second pipe section.
  • the first pipe section may for example have a length of at least 10 cm.
  • the second pipe section is preferably oriented at an angle of 30 [deg.] To 150 [deg.], In particular at an angle of 90 [deg.], To the first pipe section.
  • connection part and / or the pipe part are made of metal in a preferred embodiment of the inventive jet pipe.
  • connection part is made of brass.
  • the pipe part may preferably be made of a steel, in particular of stainless steel.
  • the pipe part is designed rigid. Preferably, it is rigidly connected to the connecting part. It can be provided, for example, that the tube part is pressed with the connection part. Alternatively or additionally, a cohesive connection, for example a soldered or welded connection, can be used.
  • the jet pipe has a grip part which surrounds the connection part.
  • the handle can be grasped by the user. It may be at least partially made of a thermally insulating material, so that the risk of injury to the user when using a hot or very cold cleaning medium is kept low.
  • the handle part comprises a connecting element and a handle element, wherein the connecting element with the dispensing device is releasably connectable and the handle member surrounds the connecting element and forms a handle for gripping the jet pipe.
  • the connecting element may in this case be made of a different material than the handle element.
  • the connecting element is made of metal, preferably brass.
  • the grip element is made in an advantageous embodiment of a plastic material, in particular it can be provided that the grip element is designed as an injection molded part.
  • the connector may be threaded for detachable connection to the dispenser.
  • the connecting element comprises an internal thread, which can be screwed onto a corresponding connecting part of the dispensing device.
  • the connecting element is rotatable relative to the connecting part. This makes it possible to twist the connecting element when connecting to the dispensing device relative to the connecting part.
  • the gripping element is preferably non-rotatably connected to the connecting element. This has the advantage that the gripping element can be rotated together with the connecting element relative to the connecting part in order to connect the connecting element with the dispensing device.
  • the connecting element is encapsulated by the handle element. It can be provided, for example, that the connecting element is inserted in the manufacture of the gripping element in an injection mold and then encapsulated by the handle element auslagendem plastic material.
  • the grip part is displaceable relative to the tube part. This facilitates the connection of the jet pipe to the device for discharging the pressurized cleaning medium.
  • the diameter of the handle element is at least 3 cm, preferably more than 4 cm. This not only increases the mechanical stability of the handle but also makes it easier for a user to hold the jet on the handle.
  • the length of the handle element is preferably at least 10 cm. This is particularly advantageous when a heated or very cold cleaning medium is used, because of the length of at least 10 cm, the risk is reduced that the user when holding the jet pipe comes into contact with the pipe part.
  • the handle member forms a conically tapered front handle portion.
  • the conical taper facilitates grasping the handle element.
  • the front handle portion carries outwardly projecting ribs or cams.
  • the front grip region defines an annular space which surrounds the tubular part over a partial region of its length in the circumferential direction.
  • the annular space may extend from the connecting part over a partial region of the tubular part.
  • the annular space can be filled with a thermal insulation material, for example with air.
  • the grip element forms a cylindrical rear grip area.
  • a jet pipe 10 is shown schematically with a handle part 12 which surrounds a connection part 14.
  • the connecting part 14 is configured with a nipple, in which a rear end portion 16 of a rigid tube part 18 is pressed.
  • the pipe part 18 is preferably made of metal, in particular of stainless steel.
  • a nozzle 22 is screwed in the free end 20 of the tubular member 18.
  • the nozzle 22 has an external thread which cooperates with a corresponding internal thread of the pipe part 18.
  • the nozzle 22 is completely immersed in the tube part 18 and is surrounded by this in the circumferential direction.
  • the pipe part 18 has a first pipe section 24, which runs straight from the connection part 14.
  • the tube part 18 has a second tube section 26, which receives the nozzle 22 and is aligned at an angle of 90 ° to the longitudinal axis 28 of the first tube section 24.
  • a third pipe section 30 is curved in a circular arc and connects the first pipe section 24 with the second pipe section 26.
  • the free end 20 of the pipe part 18 also forms the free end of the second pipe section 26. It is arranged at a distance A of at most 60 mm to the longitudinal axis 28 of the first pipe section 24.
  • the diameter of the tube member 18 is over its entire length including the area surrounding the nozzle 22 a maximum of 10 mm to 12 mm, in the illustrated embodiment, the diameter is less than 9 mm.
  • the gripping part 12 comprises a sleeve-shaped connecting element 32, which is bent at a front end 33 and surrounds the connecting part 14 in the circumferential direction, wherein the bent front end 33 forms a stop for the nipple-shaped connecting part 14.
  • the connecting element 32 as well as the connecting part 14 is made of brass.
  • the handle part 12 a double-walled handle member 35 which is rotatably connected to the connecting element 32 and is designed as a plastic injection molded part.
  • the gripping element 35 forms in a front, in the longitudinal direction of the jet pipe 10 via the connecting element 32 projecting region of a front handle portion 37, which tapers conically and on the outside longitudinal ribs 38 carries.
  • the handle member 35 forms a rear handle portion 40 which is cylindrical in shape.
  • the front grip region 37 surrounds an annular space 42, which extends over a partial region of the first tubular section 24 and adjoins the connecting element 32.
  • the connecting element 32 has an internal thread 44, by means of which the jet pipe 10 can be screwed to a device for dispensing a pressurized cleaning medium, for example with a spray gun of a high-pressure cleaning device.
  • a connection area 46 of the connection part surrounded by a sealing ring 47 14 may in this case dip into a complementary designed connection region of the dispensing device for establishing a flow connection between the dispensing device and the jet pipe 10.
  • a pressurized cleaning medium for example, a pressurized cleaning liquid
  • a pressurized cleaning medium for example, a pressurized cleaning liquid
  • the second pipe section 26 of the tubular member 18 can be passed through an opening of a cover, for example covering a drainage channel.
  • a cover for example covering a drainage channel.
  • the jet pipe 10 is therefore particularly suitable for cleaning drainage channels, which is covered by a cover having a plurality of openings, wherein the cover for cleaning the drainage channel does not have to be removed from the drainage channel.
  • the drainage channel and the cover are permanently connected to one another in order to prevent theft or vandalism.
  • the drainage channel can be reliably cleaned by means of the jet pipe 10 in a simple manner.

Description

Die Erfindung betrifft ein Strahlrohr zum Anschliessen an eine Vorrichtung zur Abgabe eines unter Druck stehenden Reinigungsmediums, mit einem Anschlussteil zum Herstellen einer Strömungsverbindung mit der Abgabevorrichtung und mit einem sich an das Anschlussteil anschliessenden gekrümmten Rohrteil, an dessen freiem Ende eine Düse zur Abgabe des Reinigungsmediums angeordnet ist.The invention relates to a jet pipe for connection to a device for discharging a pressurized cleaning medium, with a connection part for establishing a flow connection with the dispensing device and with a subsequent to the connection part curved pipe part, arranged at the free end of a nozzle for dispensing the cleaning medium is.

Strahlrohre, die an eine Vorrichtung zur Abgabe eines unter Druck stehenden Reinigungsmediums angeschlossen werden können, sind in vielfältiger Ausführungsform bekannt. Als Reinigungsmedium kann beispielsweise eine Flüssigkeit zum Einsatz kommen, insbesondere Wasser, das unter Druck steht. Bevorzugt kann das Strahlrohr an eine Spritzpistole angeschlossen werden, die an das freie Ende eines Druckschlauches für das Reinigungsmedium angeschlossen werden kann. So sind beispielsweise Strahlrohre bekannt, die an die Spritzpistole eines Hochdruckreinigungsgerätes anschliessbar sind. An ihrem freien Ende tragen die Strahlrohre eine Düse, mit deren Hilfe ein Strahl des unter Druck stehenden Reinigungsmediums beispielsweise auf einen zu reinigenden Gegenstand gerichtet werden kann.Blast pipes that can be connected to a device for dispensing a pressurized cleaning medium, are known in various embodiments. As a cleaning medium, for example, a liquid can be used, in particular water, which is under pressure. Preferably, the jet pipe can be connected to a spray gun, which can be connected to the free end of a pressure hose for the cleaning medium. For example, jet pipes are known, which can be connected to the spray gun of a high-pressure cleaner. At its free end, the jet pipes carry a nozzle, with the aid of which a jet of the pressurized cleaning medium can be directed, for example, to an object to be cleaned.

Alternativ zu einer Reinigungsflüssigkeit kann auch ein unter Druck stehendes Gas zur Reinigung eines Gegenstandes herangezogen werden, beispielsweise Druckluft. Es kann auch vorgesehen sein, dass man mittels des Strahlrohres beispielsweise ein Gemisch aus Trockeneis und Druckluft auf einen zu reinigenden Gegenstand richtet.As an alternative to a cleaning liquid, a pressurized gas can also be used to clean an object, for example compressed air. It can also be provided that, for example, a mixture of dry ice and compressed air is directed onto an object to be cleaned by means of the jet pipe.

Damit das unter Druck stehende Reinigungsmedium auf bequeme Weise auch auf eine schwer zugängliche Seite eines zu reinigenden Gegenstandes gerichtet werden kann, ist das starre Rohrteil gekrümmt. Derartige Strahlrohre können beispielsweise zur Reinigung von Fahrzeugunterseiten oder Kotflügeln zum Einsatz kommen.So that the pressurized cleaning medium can be directed in a comfortable manner on a hard to reach side of an object to be cleaned, the rigid pipe part is curved. Such jet pipes can be used, for example, for cleaning vehicle undersides or fenders.

Es kann vorkommen, dass ein zu reinigender Gegenstand von einer Abdeckung abgedeckt ist, die Durchtrittsöffnungen aufweist, wobei das Strahlrohr durch die Durchrittsöffnungen hindurchgeführt werden soll. Beispielsweise werden Entwässerungsrinnen, die der Entwässerung von versiegelten Flächen dienen, von einem Gitter abgedeckt, das mittels einer Klemm-, Steck-, Klapp- oder Schraubverbindung mit der Entwässerungsrinne verbunden ist. Sollen derartige Entwässerungsrinnen gereinigt werden, so ist es häufig erforderlich, die Abdeckung zu entfernen, da ansonsten das unter Druck stehende Reinigungsmedium, beispielsweise eine unter Druck stehende Flüssigkeit, nicht unmittelbar in die Entwässerungsrinne gerichtet werden kann.It may happen that an object to be cleaned is covered by a cover having passage openings, wherein the jet pipe is to be passed through the passage openings. For example, drainage channels that serve to drain sealed surfaces are covered by a grid that is connected to the drainage channel by means of a clamping, plug-in, hinged or threaded connection. If such drainage channels are to be cleaned, it is often necessary that the Cover to remove, otherwise the pressurized cleaning medium, such as a pressurized liquid, can not be directed directly into the drainage channel.

In der GB 971,760 A wird ein Reinigungskopf mit einer Mischdüse zur Mischung von zwei Medien beschrieben. Die FR 2 631 817 A zeigt einen Handsprühkopf mit einem Rohrstück mit einer am Ende vorgesehenen Düse.In the GB 971,760 A describes a cleaning head with a mixing nozzle for mixing two media. The FR 2 631 817 A shows a hand spray head with a pipe piece with a nozzle provided at the end.

Aufgabe der vorliegenden Erfindung ist es, ein Strahlrohr der eingangs genannten Art derart weiterzubilden, dass es erweiterte Einsatzmöglichkeiten aufweist und insbesondere auch eine einfachere Reinigung von abgedeckten Entwässerungsrinnen ermöglicht.Object of the present invention is to develop a jet pipe of the type mentioned in such a way that it has extended uses and in particular allows for easier cleaning of covered drainage channels.

Diese Aufgabe wird bei einem Strahlrohr der gattungsgemässen Art erfindungsgemäss dadurch gelöst, dass die Düse in das Rohrteil eintaucht.This object is achieved according to the invention in a jet pipe of the generic type that the nozzle dips into the pipe part.

In die Erfindung fliesst der Gedanke mit ein, dass die Einsatzmöglichkeiten des Strahlrohres erweitert werden können, wobei es insbesondere auch zur wirksamen Reinigung von Entwässerungsrinnen zum Einsatz kommen kann, die von einer Abdeckung abgedeckt sind, indem der Durchmesser des Strahlrohres im Bereich des freien Endes des Rohrteiles möglichst gering gewählt wird. Der Durchmesser des Rohrteiles an seinem freien Ende wird im Wesentlichen durch die Düse definiert, die üblicherweise auf das Rohrteil aufgeschraubt ist. Erfindungsgemäß ist vorgesehen, dass die Düse in das Rohrteil eintaucht. Dadurch kann der Durchmesser des Strahlrohres im Bereich des freien Endes des Rohrteiles einschließlich der Düse gering gehalten werden. Dies wiederum gibt die Möglichkeit, das Rohrteil mit seinem freien Endbereich durch Öffnungen der Abdeckungen von Entwässerungsrinnen hindurchzuführen, so dass die Düse in die Entwässerungsrinne eintaucht und dadurch das aus der Düse austretende Reinigungsmedium unmittelbar in die Entwässerungsrinne eintreten kann zur Entfernung von Schmutz.In the invention, the idea flows in that the possible applications of the jet pipe can be extended, and it can be used in particular for the effective cleaning of drainage channels, which are covered by a cover by the diameter of the jet pipe in the region of the free end of the Pipe part is chosen as low as possible. The diameter of the tube part at its free end is essentially defined by the nozzle, which is usually screwed onto the tube part. According to the invention it is provided that the nozzle is immersed in the pipe part. As a result, the diameter of the jet pipe in the region of the free end of the pipe part including the nozzle can be kept low. This in turn gives the possibility to pass the tube part with its free end portion through openings of the covers of drainage channels, so that the nozzle is immersed in the drainage channel and thereby the exiting the nozzle cleaning medium can enter directly into the drainage channel for the removal of dirt.

Vorzugsweise ist die Düse vollständig vom Rohrteil aufgenommen, d. h. die Düse taucht vollständig in das freie Ende des Rohrteiles ein. Die Düse erfordert bevorzugt keine Erweiterung des Durchmessers des Rohrteiles, sie ist vielmehr von außen nicht ohne Weiteres erkennbar. Der Durchmesser des Strahlrohres am freien Ende des Rohrteils kann dadurch besonders gering gehalten werden. Dies wiederum gibt die Möglichkeit, das Rohrteil auch durch enge Öffnungen hindurchzuführen. Die Einsatzmöglichkeiten des Strahlrohres werden dadurch beträchtlich erweitert.Preferably, the nozzle is completely received by the pipe part, ie the nozzle completely immersed in the free end of the pipe part. The nozzle preferably requires no extension of the diameter of the pipe part, but it is not easily recognizable from the outside. The diameter of the jet pipe at the free end of the pipe part can be kept particularly low. This in turn gives the possibility to pass the pipe part through narrow openings. The applications of the jet pipe are thereby considerably expanded.

Bei einer vorteilhaften Ausführungsform ist die Düse mit dem Rohrteil lösbar verbindbar, insbesondere verschraubbar. Dies gibt die Möglichkeit, die Düse auszutauschen, so dass je nach Reinigungsaufgabe eine spezielle Düse zum Einsatz kommen kann.In an advantageous embodiment, the nozzle is detachably connectable to the pipe part, in particular screwed. This makes it possible to replace the nozzle, so that depending on the cleaning task, a special nozzle can be used.

Vorzugsweise ist die Düse in das Rohrteil eingeschraubt. Das Rohrteil kann an seinem freien Ende ein Innengewinde aufweisen, das mit einem Aussengewinde der Düse zusammenwirkt.Preferably, the nozzle is screwed into the pipe part. The tube part may have at its free end an internal thread which cooperates with an external thread of the nozzle.

Bei einer vorteilhaften Ausführungsform ist der Durchmesser des Rohrteils in seinem die Düse umgebenden Bereich nicht grösser als im restlichen Bereich des Rohrteils.In an advantageous embodiment, the diameter of the pipe part in its area surrounding the nozzle is not greater than in the remaining region of the pipe part.

Insbesondere kann vorgesehen sein, dass das Rohrteil ausgehend vom Anschlussteil bis zu dem die Düse umgebenden Bereich einen gleich bleibenden Durchmesser aufweist.In particular, it can be provided that the tube part, starting from the connecting part up to the area surrounding the nozzle, has a constant diameter.

Der Durchmesser des Rohrteils beträgt bei einer besonders bevorzugten Ausgestaltung der Erfindung maximal 10 mm bis 12 mm. Insbesondere kann vorgesehen sein, dass der Aussendurchmesser des Rohrteiles über seine gesamte Länge nicht mehr als 9 mm beträgt.The diameter of the pipe part is in a particularly preferred embodiment of the invention a maximum of 10 mm to 12 mm. In particular, it can be provided that the outer diameter of the pipe part over its entire length is not more than 9 mm.

Günstigerweise umfasst das Rohrteil einen ersten und einen zweiten Rohrabschnitt, wobei sich der erste Rohrabschnitt an das Anschlussteil anschliesst und geradlinig verläuft und der zweite Rohrabschnitt im Winkel zum ersten Rohrabschnitt ausgerichtet ist und an seinem freien Ende die Düse trägt, wobei der Abstand des freien Endes des zweiten Rohrabschnitts von der Längsachse des ersten Rohrabschnitts weniger als 10 cm beträgt, insbesondere weniger als 6 cm. Ein verhältnismässig kurzer Abstand zwischen der Längsachse des ersten Rohrabschnittes und dem freien Ende des zweiten Rohrabschnittes hat den Vorteil, dass das Rohrteil auch durch verhältnismässig kurze Öffnungen von Abdeckungen von Entwässerungsrinnen hindurchgeführt werden kann. Ausserdem erleichtert ein verhältnismässig kurzer Abstand zwischen der Längsachse des ersten Rohrabschnitts und dem freien Ende des zweiten Rohrabschnitts die Handhabung des Strahlrohres bei der Reinigung verhältnismässig flacher Entwässerungsrinnen.Conveniently, the tube part comprises a first and a second pipe section, wherein the first pipe section adjoins the connecting part and is rectilinear and the second pipe section is oriented at an angle to the first pipe section and carries at its free end the nozzle, wherein the distance of the free end of second pipe section from the longitudinal axis of the first pipe section is less than 10 cm, in particular less than 6 cm. A relatively short distance between the longitudinal axis of the first pipe section and the free end of the second pipe section has the advantage that the pipe part can also be passed through relatively short openings of covers of drainage channels. In addition, a relatively short distance between the longitudinal axis of the first pipe section and the free end of the second pipe section facilitates the handling of the jet pipe in the cleaning of relatively shallow drainage channels.

Günstigerweise ist der erste Rohrabschnitt länger als der zweite Rohrabschnitt.Conveniently, the first pipe section is longer than the second pipe section.

Insbesondere kann vorgesehen sein, dass der erste Rohrabschnitt mindestens doppelt so lang ist wie der zweite Rohrabschnitt.In particular, it can be provided that the first pipe section is at least twice as long as the second pipe section.

Bei einer vorteilhaften Ausführungsform beträgt die Länge des ersten Rohrabschnittes ein Vielfaches der Länge des zweiten Rohrabschnittes.In an advantageous embodiment, the length of the first pipe section is a multiple of the length of the second pipe section.

Der erste Rohrabschnitt kann beispielsweise eine Länge von mindestens 10 cm aufweisen.The first pipe section may for example have a length of at least 10 cm.

Der zweite Rohrabschnitt ist bevorzugt in einem Winkel von 30[deg.] bis 150[deg.], insbesondere in einem Winkel von 90[deg.], zum ersten Rohrabschnitt ausgerichtet.The second pipe section is preferably oriented at an angle of 30 [deg.] To 150 [deg.], In particular at an angle of 90 [deg.], To the first pipe section.

Das Anschlussteil und/oder das Rohrteil sind bei einer bevorzugten Ausgestaltung des erfindungsgemässen Strahlrohres aus Metall gefertigt. So kann beispielsweise vorgesehen sein, dass das Anschlussteil aus Messing hergestellt ist. Das Rohrteil kann vorzugsweise aus einem Stahl gefertigt sein, insbesondere aus Edelstahl.The connection part and / or the pipe part are made of metal in a preferred embodiment of the inventive jet pipe. For example, it may be provided that the connection part is made of brass. The pipe part may preferably be made of a steel, in particular of stainless steel.

Das Rohrteil ist starr ausgestaltet. Vorzugsweise ist es mit dem Anschlussteil starr verbunden. Es kann beispielsweise vorgesehen sein, dass das Rohrteil mit dem Anschlussteil verpresst ist. Alternativ oder ergänzend kann eine stoffschlüssige Verbindung, beispielsweise eine Löt- oder Schweissverbindung, zum Einsatz kommen.The pipe part is designed rigid. Preferably, it is rigidly connected to the connecting part. It can be provided, for example, that the tube part is pressed with the connection part. Alternatively or additionally, a cohesive connection, for example a soldered or welded connection, can be used.

Um die Handhabung des Strahlrohres zu erleichtern, ist es von Vorteil, wenn das Strahlrohr ein Griffteil aufweist, das das Anschlussteil umgibt. Das Griffteil kann vom Benutzer ergriffen werden. Es kann zumindest bereichsweise aus einem thermisch isolierenden Material gefertigt sein, so dass die Gefahr einer Verletzung des Benutzers bei Einsatz eines heissen oder sehr kalten Reinigungsmediums gering gehalten wird.In order to facilitate the handling of the jet pipe, it is advantageous if the jet pipe has a grip part which surrounds the connection part. The handle can be grasped by the user. It may be at least partially made of a thermally insulating material, so that the risk of injury to the user when using a hot or very cold cleaning medium is kept low.

Günstigerweise umfasst das Griffteil ein Verbindungselement und ein Griffelement, wobei das Verbindungselement mit der Abgabevorrichtung lösbar verbindbar ist und das Griffelement das Verbindungselement umgibt und einen Griff ausbildet zum Ergreifen des Strahlrohres. Das Verbindungselement kann hierbei aus einem anderen Material hergestellt sein als das Griffelement.Conveniently, the handle part comprises a connecting element and a handle element, wherein the connecting element with the dispensing device is releasably connectable and the handle member surrounds the connecting element and forms a handle for gripping the jet pipe. The connecting element may in this case be made of a different material than the handle element.

Beispielsweise kann vorgesehen sein, dass das Verbindungselement aus Metall gefertigt ist, vorzugsweise aus Messing.For example, it can be provided that the connecting element is made of metal, preferably brass.

Das Griffelement ist bei einer vorteilhaften Ausführungsform aus einem Kunststoffmaterial gefertigt, insbesondere kann vorgesehen sein, dass das Griffelement als Spritzgussteil ausgestaltet ist.The grip element is made in an advantageous embodiment of a plastic material, in particular it can be provided that the grip element is designed as an injection molded part.

Das Verbindungselement kann zur lösbaren Verbindung mit der Abgabevorrichtung ein Gewinde aufweisen. Vorzugsweise umfasst das Verbindungselement ein Innengewinde, das auf ein korrespondierendes Verbindungsteil der Abgabevorrichtung aufgeschraubt werden kann.The connector may be threaded for detachable connection to the dispenser. Preferably, the connecting element comprises an internal thread, which can be screwed onto a corresponding connecting part of the dispensing device.

Günstigerweise ist das Verbindungselement relativ zum Anschlussteil verdrehbar. Dies gibt die Möglichkeit, das Verbindungselement beim Verbinden mit der Abgabevorrichtung relativ zum Anschlussteil zu verdrehen.Conveniently, the connecting element is rotatable relative to the connecting part. This makes it possible to twist the connecting element when connecting to the dispensing device relative to the connecting part.

Das Griffelement ist bevorzugt drehfest mit dem Verbindungselement verbunden. Dies hat den Vorteil, dass das Griffelement zusammen mit dem Verbindungselement relativ zum Anschlussteil verdreht werden kann, um das Verbindungselement mit der Abgabevorrichtung zu verbinden.The gripping element is preferably non-rotatably connected to the connecting element. This has the advantage that the gripping element can be rotated together with the connecting element relative to the connecting part in order to connect the connecting element with the dispensing device.

Günstigerweise ist das Verbindungselement vom Griffelement umspritzt. Es kann beispielsweise vorgesehen sein, dass das Verbindungselement bei der Herstellung des Griffelementes in eine Spritzgussform eingelegt und anschliessend von das Griffelement ausbildendem Kunststoffmaterial umspritzt wird.Conveniently, the connecting element is encapsulated by the handle element. It can be provided, for example, that the connecting element is inserted in the manufacture of the gripping element in an injection mold and then encapsulated by the handle element ausbildendem plastic material.

Von besonderem Vorteil ist es, wenn das Griffteil relativ zum Rohrteil verschiebbar ist. Dies erleichtert das Anschliessen des Strahlrohres an die Vorrichtung zur Abgabe des unter Druck stehenden Reinigungsmediums.It is particularly advantageous if the grip part is displaceable relative to the tube part. This facilitates the connection of the jet pipe to the device for discharging the pressurized cleaning medium.

Bei einer vorteilhaften Ausführungsform beträgt der Durchmesser des Griffelements mindestens 3 cm, vorzugsweise mehr als 4 cm. Dies erhöht nicht nur die mechanische Stabilität des Griffteils sondern erleichtert es einem Benutzer auch, das Strahlrohr am Griffteil zu halten.In an advantageous embodiment, the diameter of the handle element is at least 3 cm, preferably more than 4 cm. This not only increases the mechanical stability of the handle but also makes it easier for a user to hold the jet on the handle.

Die Länge des Griffelements beträgt vorzugsweise mindestens 10 cm. Dies ist insbesondere von Vorteil, wenn ein erhitztes oder sehr kaltes Reinigungsmedium zum Einsatz kommt, denn aufgrund der Länge von mindestens 10 cm wird die Gefahr verringert, dass der Benutzer beim Halten des Strahlrohres mit dem Rohrteil in Kontakt gelangt.The length of the handle element is preferably at least 10 cm. This is particularly advantageous when a heated or very cold cleaning medium is used, because of the length of at least 10 cm, the risk is reduced that the user when holding the jet pipe comes into contact with the pipe part.

Günstigerweise bildet des Griffelement einen sich konisch verjüngenden vorderen Griffbereich aus. Die konische Verjüngung erleichtert das Ergreifen des Griffelementes. Hierbei kann vorgesehen sein, dass der vordere Griffbereich nach aussen abstehende Rippen oder Nocken trägt.Conveniently, the handle member forms a conically tapered front handle portion. The conical taper facilitates grasping the handle element. It can be provided that the front handle portion carries outwardly projecting ribs or cams.

Als vorteilhaft hat es sich erwiesen, wenn der vordere Griffbereich einen Ringraum definiert, der das Rohrteil über einen Teilbereich seiner Länge in Umfangsrichtung umgibt. Der Ringraum kann sich ausgehend vom Anschlussteil über einen Teilbereich des Rohrteiles erstrecken. Der Ringraum kann mit einem thermischen Isolationsmaterial, beispielsweise mit Luft gefüllt sein.It has proved to be advantageous if the front grip region defines an annular space which surrounds the tubular part over a partial region of its length in the circumferential direction. The annular space may extend from the connecting part over a partial region of the tubular part. The annular space can be filled with a thermal insulation material, for example with air.

Bei einer bevorzugten Ausgestaltung bildet das Griffelement einen zylindrischen hinteren Griffbereich aus.In a preferred embodiment, the grip element forms a cylindrical rear grip area.

Zur Erhöhung der mechanischen Stabilität des Griffteiles ist es von Vorteil, wenn dieses doppelwandig ausgestaltet ist.To increase the mechanical stability of the handle, it is advantageous if this is designed double-walled.

Die nachfolgende Beschreibung einer bevorzugten Ausführungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

  1. 1: eine perspektivische Darstellung eines erfindungsgemässen Strahlrohres und
  2. 2: einen Längsschnitt des Strahlrohres aus 1.
The following description of a preferred embodiment of the invention serves in conjunction with the drawings for further explanation. Show it:
  1. 1: a perspective view of a jet pipe according to the invention and
  2. 2: a longitudinal section of the jet pipe from FIG. 1.

In der Zeichnung ist schematisch ein erfindungsgemässes Strahlrohr 10 dargestellt mit einem Griffteil 12 , das ein Anschlussteil 14 umgibt. Das Anschlussteil 14 ist mit einem Nippel ausgestaltet, in den ein hinterer Endabschnitt 16 eines starren Rohrteiles 18 eingepresst ist. Das Rohrteil 18 ist vorzugsweise aus Metall gefertigt, insbesondere aus Edelstahl. In das freie Ende 20 des Rohrteiles 18 ist eine Düse 22 eingeschraubt. Die Düse 22 weist hierzu ein Aussengewinde auf, das mit einem korrespondierenden Innengewinde des Rohrteiles 18 zusammenwirkt. Die Düse 22 taucht vollständig in das Rohrteil 18 ein und wird von diesem in Umfangsrichtung umgeben.In the drawing, a jet pipe 10 according to the invention is shown schematically with a handle part 12 which surrounds a connection part 14. The connecting part 14 is configured with a nipple, in which a rear end portion 16 of a rigid tube part 18 is pressed. The pipe part 18 is preferably made of metal, in particular of stainless steel. In the free end 20 of the tubular member 18, a nozzle 22 is screwed. For this purpose, the nozzle 22 has an external thread which cooperates with a corresponding internal thread of the pipe part 18. The nozzle 22 is completely immersed in the tube part 18 and is surrounded by this in the circumferential direction.

Das Rohrteil 18 weist einen ersten Rohrabschnitt 24 auf, der ausgehend vom Anschlussteil 14 geradlinig verläuft. Ausserdem weist das Rohrteil 18 einen zweiten Rohrabschnitt 26 auf, der die Düse 22 aufnimmt und in einem Winkel von 90[deg.] zur Längsachse 28 des ersten Rohrabschnittes 24 ausgerichtet ist. Ein dritter Rohrabschnitt 30 ist kreisbogenförmig gekrümmt und verbindet den ersten Rohrabschnitt 24 mit dem zweiten Rohrabschnitt 26.The pipe part 18 has a first pipe section 24, which runs straight from the connection part 14. In addition, the tube part 18 has a second tube section 26, which receives the nozzle 22 and is aligned at an angle of 90 ° to the longitudinal axis 28 of the first tube section 24. A third pipe section 30 is curved in a circular arc and connects the first pipe section 24 with the second pipe section 26.

Das freie Ende 20 des Rohrteiles 18 bildet auch das freie Ende des zweiten Rohrabschnitts 26 aus. Es ist in einem Abstand A von maximal 60 mm zur Längsachse 28 des ersten Rohrabschnittes 24 angeordnet.The free end 20 of the pipe part 18 also forms the free end of the second pipe section 26. It is arranged at a distance A of at most 60 mm to the longitudinal axis 28 of the first pipe section 24.

Der Durchmesser des Rohrteiles 18 beträgt über dessen gesamte Länge einschliesslich des die Düse 22 umgebenden Bereiches maximal 10 mm bis 12 mm, in der dargestellten Ausführungsform beträgt der Durchmesser weniger als 9 mm.The diameter of the tube member 18 is over its entire length including the area surrounding the nozzle 22 a maximum of 10 mm to 12 mm, in the illustrated embodiment, the diameter is less than 9 mm.

Das Griffteil 12 umfasst ein hülsenförmiges Verbindungselement 32 , das an einem vorderen Ende 33 abgekröpft ist und das Anschlussteil 14 in Umfangsrichtung umgibt, wobei das abgekröpfte vordere Ende 33 einen Anschlag für das nippelförmige Anschlussteil 14 ausbildet. Das Verbindungselement 32 ist ebenso wie das Anschlussteil 14 aus Messing hergestellt.The gripping part 12 comprises a sleeve-shaped connecting element 32, which is bent at a front end 33 and surrounds the connecting part 14 in the circumferential direction, wherein the bent front end 33 forms a stop for the nipple-shaped connecting part 14. The connecting element 32 as well as the connecting part 14 is made of brass.

In Ergänzung zum Verbindungselement 32 weist das Griffteil 12 ein doppelwandiges Griffelement 35 auf, das drehfest mit dem Verbindungselement 32 verbunden ist und als Kunststoff-Spritzgussteil ausgestaltet ist. Das Griffelement 35 bildet in einem vorderen, in Längsrichtung des Strahlrohres 10 über das Verbindungselement 32 überstehenden Bereich einen vorderen Griffbereich 37 aus, der sich konisch verjüngt und aussenseitig Längsrippen 38 trägt. Ausserdem bildet das Griffelement 35 einen hinteren Griffbereich 40 aus, der zylindrisch ausgestaltet ist. Der vordere Griffbereich 37 umgibt einen Ringraum 42 , der sich über einen Teilbereich des ersten Rohrabschnittes 24 erstreckt und sich an das Verbindungselement 32 anschliesst.In addition to the connecting element 32, the handle part 12 a double-walled handle member 35 which is rotatably connected to the connecting element 32 and is designed as a plastic injection molded part. The gripping element 35 forms in a front, in the longitudinal direction of the jet pipe 10 via the connecting element 32 projecting region of a front handle portion 37, which tapers conically and on the outside longitudinal ribs 38 carries. In addition, the handle member 35 forms a rear handle portion 40 which is cylindrical in shape. The front grip region 37 surrounds an annular space 42, which extends over a partial region of the first tubular section 24 and adjoins the connecting element 32.

Das Verbindungselement 32 weist ein Innengewinde 44 auf, mit dessen Hilfe das Strahlrohr 10 mit einer Vorrichtung zur Abgabe eines unter Druck stehenden Reinigungsmediums, beispielsweise mit einer Spritzpistole eines Hochdruckreinigungsgerätes, verschraubt werden kann. Ein von einem Dichtring 47 umgebener Anschlussbereich 46 des Anschlussteiles 14 kann hierbei in einen komplementär ausgestalteten Anschlussbereich der Abgabevorrichtung eintauchen zur Herstellung einer Strömungsverbindung zwischen der Abgabevorrichtung und dem Strahlrohr 10.The connecting element 32 has an internal thread 44, by means of which the jet pipe 10 can be screwed to a device for dispensing a pressurized cleaning medium, for example with a spray gun of a high-pressure cleaning device. A connection area 46 of the connection part surrounded by a sealing ring 47 14 may in this case dip into a complementary designed connection region of the dispensing device for establishing a flow connection between the dispensing device and the jet pipe 10.

Mit Hilfe des Strahlrohres 10 kann ein unter Druck stehendes Reinigungsmedium, beispielsweise eine unter Druck stehende Reinigungsflüssigkeit, auf einen zu reinigenden Gegenstand gerichtet werden. Da der Durchmesser des Rohrteiles 18 über dessen gesamte Länge, also auch in dem die Düse 22 umgebenden Bereich, verhältnismässig gering gewählt ist, nämlich kleiner als 9 mm, kann der zweite Rohrabschnitt 26 des Rohrteiles 18 durch eine Öffnung einer Abdeckung hindurchgeführt werden, die beispielsweise eine Entwässerungsrinne abdeckt. Dies gibt die Möglichkeit, das unter Druck stehende Reinigungsmedium durch die Öffnung der Abdeckung der Entwässerungsrinne hindurch unmittelbar in die Entwässerungsrinne zu richten, um diese von Schmutz zu befreien. Das Strahlrohr 10 eignet sich daher insbesondere zur Reinigung von Entwässerungsrinnen, die von einer Abdeckung mit einer Vielzahl von Öffnungen abgedeckt ist, wobei die Abdeckung zur Reinigung der Entwässerungsrinne nicht von der Entwässerungsrinne entfernt werden muss. Insbesondere kann vorgesehen sein, dass die Entwässerungsrinne und die Abdeckung unlösbar miteinander verbunden sind, um einem Diebstahl oder Vandalismus vorzubeugen. Trotz der unlösbaren Verbindung der Abdeckung mit der Entwässerungsrinne kann die Entwässerungsrinne mittels des Strahlrohres 10 auf einfache Wiese zuverlässig gereinigt werden.With the help of the jet pipe 10, a pressurized cleaning medium, for example, a pressurized cleaning liquid, are directed to an object to be cleaned. Since the diameter of the tubular member 18 is selected to be relatively small over its entire length, including in the area surrounding the nozzle 22, namely smaller than 9 mm, the second pipe section 26 of the tubular member 18 can be passed through an opening of a cover, for example covering a drainage channel. This makes it possible to direct the pressurized cleaning medium through the opening of the cover of the drainage channel directly into the drainage channel, to rid it of dirt. The jet pipe 10 is therefore particularly suitable for cleaning drainage channels, which is covered by a cover having a plurality of openings, wherein the cover for cleaning the drainage channel does not have to be removed from the drainage channel. In particular, it can be provided that the drainage channel and the cover are permanently connected to one another in order to prevent theft or vandalism. Despite the permanent connection of the cover with the drainage channel, the drainage channel can be reliably cleaned by means of the jet pipe 10 in a simple manner.

Claims (15)

  1. Jet pipe for connecting to a device for dispensing a pressurised cleaning medium, having a connection part for producing a flow connection to the dispensing device and having a curved, rigid tube part which adjoins the connection part and on the free end of which is arranged a nozzle for the dispensing of the cleaning medium, characterized in that the nozzle (22) protrudes into the tube part (18), in that the tube part (18) has a diameter of at most 10 - 12 mm in the region surrounding the nozzle, and in that the nozzle (22) has an external thread which interacts with a corresponding internal thread of the tube part (18).
  2. Jet pipe according to Claim 1, characterized in that the nozzle (22) is received entirely by the tube part (18).
  3. Jet pipe according to Claim 1 or 2, characterized in that the diameter of the tube part (18) is no larger in its region surrounding the nozzle (22) than in the remaining region of the tube part (18), wherein the tube part (18) preferably has a constant diameter proceeding from the connection part (14) to the region surrounding the nozzle (22), wherein the diameter of the tube part (18) is particularly preferably at most 10 mm to 12 mm.
  4. Jet pipe according to one of the preceding claims, characterized in that the tube part (18) has a first and a second tube portion (24, 26), wherein the first tube portion (24) adjoins the connection part (14) and runs rectilinearly, and the second tube portion (26) is oriented at an angle with respect to the first tube portion (24) and, on its free end (20), bears the nozzle (22), wherein the spacing between the free end (20) of the second tube portion (26) and the longitudinal axis (28) of the first tube portion (24) is less than 10 cm, in particular less than 6 cm.
  5. Jet pipe according to Claim 4, characterized in that the first tube portion (24) is longer than the second tube portion (26), preferably at least twice as long as the second tube portion (26), wherein the second tube portion (26) is particularly preferably oriented at an angle of 30 degrees to 150 degrees, in particular at an angle of 90 degrees, with respect to the first tube portion (24).
  6. Jet pipe according to one of the preceding claims, characterized in that the connection part (14) and/or the tube part (18) are manufactured from metal.
  7. Jet pipe according to one of the preceding claims, characterized in that the connection part (14) is pressed together with the tube part (18).
  8. Jet pipe according to one of the preceding claims, characterized in that the jet pipe (10) has a grip part (12) which surrounds the connection part (14).
  9. Jet pipe according to Claim 8, characterized in that the grip part (12) comprises a connecting element (32) and a grip element (35), wherein the connecting element (32) is releasably connectable to the dispensing device and the grip element (35) surrounds the connecting element (32) and forms a grip for enabling the jet pipe (10) to be gripped.
  10. Jet pipe according to Claim 9, characterized in that the connecting element (32) has a thread (44) for screwing to the dispensing device, wherein the connecting element (30) is preferably manufactured from metal.
  11. Jet pipe according to Claim 9 or 10, characterized in that the connecting element (32) is rotatable relative to the connection part (14), wherein the grip element (35) is preferably rotationally fixedly connected to the connecting element (32).
  12. Jet pipe according to one of Claims 9 to 11, characterized in that the grip element (35) is formed as an injection-moulded part, wherein the grip part (12) is preferably displaceable relative to the tube part (18).
  13. Jet pipe according to one of Claims 9 to 12, characterized in that the diameter of the grip element (35) is at least 3 cm, in particular more than 4 cm, wherein the length of the grip element is preferably at least 10 cm.
  14. Jet pipe according to one of Claims 9 to 13, characterized in that the grip element (35) forms a conically tapering front grip region (37), wherein the front grip region (37) preferably defines an annular chamber (42) which surrounds the tube part (18) in the circumferential direction over a sub-region of the length of said tube part.
  15. Jet pipe according to one of Claims 9 to 14, characterized in that the grip element (35) forms a cylindrical rear grip region (40), wherein the grip part (12) is preferably of double-walled configuration.
EP10161575.5A 2009-04-30 2010-04-30 Jet pipe Not-in-force EP2246118B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009006789U DE202009006789U1 (en) 2009-04-30 2009-04-30 lance

Publications (2)

Publication Number Publication Date
EP2246118A1 EP2246118A1 (en) 2010-11-03
EP2246118B1 true EP2246118B1 (en) 2013-10-16

Family

ID=40984463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10161575.5A Not-in-force EP2246118B1 (en) 2009-04-30 2010-04-30 Jet pipe

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Country Link
EP (1) EP2246118B1 (en)
DE (1) DE202009006789U1 (en)
DK (1) DK2246118T3 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL280291A (en) * 1961-06-30
FR2631817B1 (en) * 1988-05-24 1997-07-04 Chavonnet Ste Cale BASIN WASHER

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EP2246118A1 (en) 2010-11-03
DE202009006789U1 (en) 2009-08-20
DK2246118T3 (en) 2014-01-27

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