EP0047444B1 - Variable sprinkler for different irrigation requirements - Google Patents

Variable sprinkler for different irrigation requirements Download PDF

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Publication number
EP0047444B1
EP0047444B1 EP81106660A EP81106660A EP0047444B1 EP 0047444 B1 EP0047444 B1 EP 0047444B1 EP 81106660 A EP81106660 A EP 81106660A EP 81106660 A EP81106660 A EP 81106660A EP 0047444 B1 EP0047444 B1 EP 0047444B1
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EP
European Patent Office
Prior art keywords
roller
fan
type nozzle
sprinkler according
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81106660A
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German (de)
French (fr)
Other versions
EP0047444A1 (en
Inventor
Friedrich Schanz
Emil Schucker
Alexander Perrot
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.)
Perrot Regnerbau GmbH and Co
Original Assignee
Perrot Regnerbau GmbH and Co
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Application filed by Perrot Regnerbau GmbH and Co filed Critical Perrot Regnerbau GmbH and Co
Publication of EP0047444A1 publication Critical patent/EP0047444A1/en
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Publication of EP0047444B1 publication Critical patent/EP0047444B1/en
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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
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0418—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0422—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements
    • B05B3/0431—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements the rotative movement of the outlet elements being reversible
    • B05B3/044—Tubular elements holding several outlets, e.g. apertured tubes, oscillating about an axis substantially parallel to the tubular element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/01—Pattern sprinkler

Definitions

  • the invention relates to a sprinkler that can be varied to suit different irrigation needs (e.g. with regard to the jet strength and droplet size) with a cylindrical fan nozzle that can be swung back and forth about an approximately horizontal axis with approximately linearly arranged nozzle bores that are so different from the radial of the fan nozzle are inclined that there is a fan-like arrangement of the water jets, the fan nozzle cooperating with a Varrie sleeve concentric on the mountable and rotatable relative to it with radial openings to vary the irrigation, which variation sleeve is removable for a non-varied operation of the fan nozzle .
  • the well-known garden sprinklers of this type are primarily so-called square sprinklers. They are used to water lawns as well as vegetable and flower beds. However, a drop of a certain drop size is not equally suitable for the two irrigation purposes mentioned. Lawn areas are easy with regard to the drop size. You can also tolerate slightly larger water drops without damage. However, this does not apply to vegetables and flowers.
  • the variation sleeve is a regulating sleeve which can be adjusted manually to different angular positions within the fan nozzle while overcoming the friction. It can be used to vary the size of the area to be irrigated.
  • the emerging water jets can also be atomized. However, such a nebulization reduces the throw range. It is also not necessary for sensitive crops.
  • the object of the invention is to develop a sprinkler of the type mentioned at the outset in such a way that, on the one hand, lawn areas with maximum performance and boundary area and, on the other hand, optionally also sensitive crops can be irrigated, optimal droplet drop or optimal drop size adapted to the specific need of these cultures .
  • V ariierhülse a cylindrical fan nozzle enclosing, designed as a turbine wheel and acted upon by the water jets to generate a torque, rotatably mounted roller.
  • the pedestal 10 carries the housing 11 for driving the fan nozzle 13.
  • the water supplied enters the housing 11 and acts on a turbine wheel there.
  • the turbine wheel drives a crank 17 via a strongly reduced gear, which is connected in an articulated manner to a radial arm of the cylindrical fan nozzle 13 via a crank rod 18.
  • the fan nozzle is rotatably mounted in the housing 11.
  • the fan nozzle 13 is pivoted back and forth about a horizontal axis bb by the crank mechanism 17, 18. This results in an approximately rectangular area of irrigation because the nozzle bores 15 are inclined so differently against the radials aa that the water jets emerge in a fan-like arrangement approximately in one plane.
  • the fan nozzle 13 is closed at the end by means of a screw plug 14.
  • a roller 20 can be axially fitted onto the fan nozzle.
  • the clear width of the roller 20 is slightly larger than the outer diameter of the cylindrical fan nozzle 13.
  • the roller 20 When plugged in, the roller 20 rotatably rests on the fan nozzle 13, a running joint 23a remaining between the outer lateral surface of the fan nozzle and the inner lateral surface of the roller.
  • the roller 20 has a collar 20a on the side facing the drive of the fan nozzle. The collar is formed by a short section of the roller of smaller diameter; it has two incisions 23, as can be seen in particular from FIGS. 3, 7.
  • the inner edges 22 When plugged in, the inner edges 22 are bent open and then snap into the incisions 23. Since the distance between the inner edges 22 of the ring 21 is smaller than the outer diameter of the fan nozzle 13, these inner edges snap slightly into the ring groove 19 of the fan nozzle when the roller 20 is axially attached. As a result, the wad is axially secured in its operating position. Atlardings.-is the distance. between the inner edges 22 slightly larger than the diameter of the roller 20 removed from the base 19a of the annular groove 19, so that these: inner edges 22: engage in the annular groove 19 with play.
  • the width of the resilient ring 21 is somewhat less than the width of the Ring groove 19, so that the side surfaces of the Ring.21 in the area of their inner edges 22 in the ring groove 19 have play and so the smooth running of the roller 20 is ensured.
  • at least the wall of the annular groove 19 facing away from the housing 11 is inclined towards the pivot axis bb. This inclination has the result that the inner edges 22 when the roller 20 is axially pulled off the inclined wall of the annular groove 19 and are slightly bent out, so that the roller 20 can be removed.
  • the spherical cap design of the screw plug 14 makes it easier to attach the roller 20 by a certain centering effect.
  • the running joint 23a of the roller 20 is limited to the axial region of the webs 20b. Outside the running joint 23a, the roller 20 is guided on the jacket of the fan nozzle 13 with a spial.
  • the nozzle bores 15 lie approximately in a radial plane of the fan nozzle 13.
  • the water jets 16 consequently emerging in this radial plane act on the flanks of the webs 20b, which are inclined against this plane.
  • this torque can also be generated in that the nozzle bores 15 of the fan nozzle 13 are inclined against the above-mentioned radial plane of the fan nozzle 13 and the abovementioned flanks of the webs are strictly radially aligned. Penn also applies torque in this case.

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  • Nozzles (AREA)

Description

Die Erfindung bezieht sich auf einen auf unterschiedliche Beregnungsbedürfnisse (z. B. hinsichtlich der Strahlstärke und Tropfengröße) variierbaren Regner mit einer um eine etwa horizontale Achse hin- und herschwenbaren, zylindrischen Fächerdüse mit etwa linear angeordneten Düsenbohrungen, die derart unterschiedlich gegen die Radialen der Fächerdüse geneigt sind, daß sich eine fächerartige Anordnung der Wasserstrahlen ergibt, wobei die Fächerdüse mit einer konzentrisch auf die aufsetzbaren und relattiv zu ihr drehbaren Varriehülse mit radialen Durchbrüchen zur Variierung der Beregnung zusammenarbeitet, welche Variierhülse für eine nicht variierte Arbeitsweise der Fächerdüse von + dieser abnehmbar ist.The invention relates to a sprinkler that can be varied to suit different irrigation needs (e.g. with regard to the jet strength and droplet size) with a cylindrical fan nozzle that can be swung back and forth about an approximately horizontal axis with approximately linearly arranged nozzle bores that are so different from the radial of the fan nozzle are inclined that there is a fan-like arrangement of the water jets, the fan nozzle cooperating with a Varrie sleeve concentric on the mountable and rotatable relative to it with radial openings to vary the irrigation, which variation sleeve is removable for a non-varied operation of the fan nozzle .

Die bekannten Gartenregner dieser Art sind in erster Linie sogenannte Viereckregner. Mit ihnen werden sowohl Rasenflächen, als auch Gemüse-und Blumenbeete beregnet. Ein Tropfenfall von bestimmter Tropfengröße ist für beide genannten Beregnungszwecke jedoch nicht gleichermaßen geeignet. Rasenflächen sind mit Bezug auf die Tropfengröße problemlos. Sie können ohne Schaden auch etwas größere Wassertropfen vertragen. Dies gilt jedoch nicht ohne weiteres für Gemüse und Blumen.The well-known garden sprinklers of this type are primarily so-called square sprinklers. They are used to water lawns as well as vegetable and flower beds. However, a drop of a certain drop size is not equally suitable for the two irrigation purposes mentioned. Lawn areas are easy with regard to the drop size. You can also tolerate slightly larger water drops without damage. However, this does not apply to vegetables and flowers.

Die Tropfen aus Viereckregnern sind in der Regel verhältnismäßig grob, weil die Flächenleistung eines solchen Regners umso größer ist, je stärker seine Wasserstralen sind und normalerweise eine große Flächenleistung erwünscht ist. Daher kann ein solcher Viereckregner nicht ohne Einschränkungen für die Gartenberegnung empfohlen werden.The drops from square sprinklers are usually relatively coarse, because the area coverage of such a sprinkler is greater, the stronger its water channels are and a large area coverage is normally desired. Therefore, such a square sprinkler cannot be recommended for garden irrigation without restrictions.

Bei einem bekannten Regner der in Betracht gezogenen Gattung (DE-C-1 926 735) ist die Variierhülse eine innerhalb der Fächerdüse unter Überwindung der Friktion manuell auf unterschiedliche Winkelpositionen einstellbare Regulierhülse. Mit ihr kann insbesondere die Größe der zu beregnenden Fläche variiert werden. Die austretenden Wasserstrahlen können aber auch vernebelt werden. Eine solche Vernebelung vermindert jedoch die Wurfweite. Sie ist zudem auch für die empfindlichen Kulturpflanzen nicht erforderlich.In a known sprinkler of the type under consideration (DE-C-1 926 735), the variation sleeve is a regulating sleeve which can be adjusted manually to different angular positions within the fan nozzle while overcoming the friction. It can be used to vary the size of the area to be irrigated. The emerging water jets can also be atomized. However, such a nebulization reduces the throw range. It is also not necessary for sensitive crops.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, einen Regner der eingangs genannten Gattung so weiterzubilden, daß einerseits Rasenflächen bei maximaler Leistung und Begrenzungsfläche und andererseits wahlweise auch empfindliche Kulturen bei dem spezifischen Bedürfnis dieser Kulturen angepaßten, optimalem Tropfenfall, bzw. optimaler Tropfengröße beregnet werden können.Proceeding from this, the object of the invention is to develop a sprinkler of the type mentioned at the outset in such a way that, on the one hand, lawn areas with maximum performance and boundary area and, on the other hand, optionally also sensitive crops can be irrigated, optimal droplet drop or optimal drop size adapted to the specific need of these cultures .

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Variierhülse eine die zylindrische Fächerdüse umschließende, als Turbinenrad gestaltete und zur Erzeugung eines Drehmomentes von den Wasserstrahlen beaufschlagbare, rotierbar gelagerte Walze ist.This object is achieved in that the V ariierhülse a cylindrical fan nozzle enclosing, designed as a turbine wheel and acted upon by the water jets to generate a torque, rotatably mounted roller.

Eine solche Lösung der Aufgabe hat zudem den Vorteil, daß bei entsprechender Gestaltung der Walze ein ausgesprochenes Sprühen möglich ist.Such a solution to the problem also has the advantage that pronounced spraying is possible if the roller is designed accordingly.

Weitere Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.Further refinements of the invention result from the dependent claims.

Nachstehend wird die Erfindung an Hand der Zeichnung an einem Ausführungsbeispiel erläutert. Es zeigt

  • Fig. 1 den Regner in Seitenansicht mit teilweise längsgeschnittener Fächerdüse ohne Walze,
  • Fig. 2 die zum Regner gemäß Fig. 1 gehörige Walze in Seitenansicht,
  • Fig. 3 die Walze gemäß Fig. 2 im Schnitt nach Linie III-III von Fig. 2,
  • Fig.4 einen zur axialen Sicherung der Walze dienenden federnden Ring,
  • Fig. 5 den Regner in einer Darstellung gemäß Fig. 1 mit aufgesteckter Walze,
  • Fig. 6 einen Schnitt nach Linie VI-VI von Fig. 5 in vergrößerter Darstellung und
  • Fig. einen Schnitt nach Linie Vll-Vll von Fig. 5 in vergrößter Darstellung.
The invention is explained below with reference to the drawing using an exemplary embodiment. It shows
  • 1 shows the sprinkler in side view with a partially longitudinally cut fan nozzle without a roller,
  • 2 the roller belonging to the sprinkler of FIG. 1 in side view,
  • 3 in section along the line III-III of FIG. 2,
  • 4 a resilient ring serving to axially secure the roller,
  • 5 shows the sprinkler in a representation according to FIG. 1 with the roller attached,
  • Fig. 6 is a section along line VI-VI of Fig. 5 in an enlarged view and
  • Fig. A section along line Vll-Vll of Fig. 5 in an enlarged view.

Der Standfuß 10 trägt das Gehäuse 11 für den Antrieb der Fächerdüse 13. Durch den Anschlußstutzen 12 tritt das zugeführte Wasser in das Gehäuse 11 ein und beaufschlagt dort ein Turbinenrad. Das Turbinenrad treibt über ein stark untersetztes Getriebe eine Kurbel 17 an, die über eine Kurbelstange 18 in gelenkiger Verbindung mit einem radialen Ausleger der zylindrischen Fächerdüse 13 steht. Die Fächerdüse ist drehbar im Gehäuse 11 gelagert. Durch den Kurbeltrieb 17, 18 wird die Fächerdüse 13 um eine horizontale Achse b-b hin- und hergeschwenkt. Dadurch ergibt sich ein etwa rechteckiges Beregnungsareal, weil die Düsenbohrungen 15 derart unterschiedlich gegen die Radialen a-a geneigt sind, daß die Wasserstrahlen in fächerartiger Anordnung etwa in einer Ebene austreten. Die Fächerdüse 13 ist mittels Verschlußschraube 14 stirnseitig verschlossen. Sie ist am Übergang zu einem getriebeseitigen Abschnitt 13a mit einer Ringnut 19 versehen. Auf die Fächerdüse ist eine Walze 20 axial aufsteckbar. Die lichte Weite der Walze 20 ist geringfügig größer als der Außendurchmesser der zylindrischen Fächerdüse 13. In aufgesteckter Stellung liegt die Walze 20 rotierbar auf der Fächerdüse 13 auf, wobei zwischen der äußeren Mantelfläche der Fächerdüse und der inneren Mantelfläche der Walze eine Lauffuge 23a verbleibt. Auf der dem Antrieb der Fächerdüse zugewandten Seite weist die Walze 20 einen Bund 20a auf. Der Bund ist durch einen kurzen Abschnitt der Walze geringeren Durchmessers gebildet; er weist zwei Einschnitte 23 auf, wie insbesondere aus den Fig. 3, 7 ersichtlich. In die Einschnitte 23 greifen parallel zueinander verlaufende Innenkanten 22 eines scheibenartigen, federnden Ringes 21 ein, der auf den Bund 20a axial aufsteckbar ist. Beim Aufstecken werden die Innenkanten 22 aufgebogen und rasten dann in die Einschnitte 23 ein. Da der Abstand zwischen den Innenkanten 22 des Ringes 21 kleiner ist als der Außendurchmesser der Fächerdüse 13, rasten diese Innenkanten beim axialen Aufstecken der Walze 20 in die Ringnut 19 der Fächerdüse geringfügig ein. Dadurch ist die Watze in ihrer Betriebsposition axial gesichert. Atlardings.-ist der Abstand. zwischen den Innenkanten 22 etwas größer als der an der Basis 19a der Ringnut 19 abgenommene Durchmesser der Walze 20, so daß diese: innenkanten 22: mit Spiel in die Ringnut 19 eingreifen.Zudem ist die Breite des federnden Ringes 21 etwas geringer als die Breite des Ringnut 19, so daß auch die Seitenflächen des Ringes.21 im Bereich ihrer Innenkahten 22 in der Ringnut 19 Spiel haben und so die Leichtgängigkeit der Walze 20 gewährleistet ist. Schließlich ist wenigstens die vom Gehäuse 11 abgewandte Wandung der Ringnut 19 gegen die Schwenkachse b-b geneigt. Diese Neigung hat zur Folge, daß die Innenkanten 22 beim axialen Abziehen der Walze 20 an der geneigten Wandung der Ringnut 19 aufgieiten und dabei leicht ausgebogen werden, so daß die Walze-20 abgenommen werden kann. Die kugelkalottenförmige Gestaltung der Verschlußschrauba 14 erleichtert das Aufstecken der Wal= ze 20 durch eine gewisse Zentrierwirkung. Auch beim Aufstecken der Walze 20 werden die lnnenkanten 22 des Ringes 21 kurzfristig aufgebogen, bis sie in die Ringnut 19 einasten.Die Durchbrüche in der Walza sind im zeichnerisch dargastell.- ten Beispiel tängsaehlitza 24. Die zwischen den Längsschtitzen verbleibenden Stege 20b sind gegen die Rediale a-a geneigt. Jeder Steg 20b, der beim Rotieren der Walze 20 die durch die Düsenbohrungen 15 gehende Mantellinie der Fächerdüse 13 passiert, wird daher von den austre tenden Wasserstrahlen beaufschlagt. Dadurch ergibt sich ein Drehmoment für die Walze 20,die ais Turbinenrad arbeitet, Die aus den Düsenbohrungen 15 austretenden Wasserstrahlen 16 werden dabei gestört. Dadurch wird die Tropfengrö-Be in erwünschter Weise vermindert. Die geometcische Grundfigur des beregneten Areals bleibt weitgehend unverändert. Das Areal wird ledigkeit etwa kleiner, da die Wasserstrahtlen an kinetischer Energie einbüßen.The pedestal 10 carries the housing 11 for driving the fan nozzle 13. Through the connection piece 12, the water supplied enters the housing 11 and acts on a turbine wheel there. The turbine wheel drives a crank 17 via a strongly reduced gear, which is connected in an articulated manner to a radial arm of the cylindrical fan nozzle 13 via a crank rod 18. The fan nozzle is rotatably mounted in the housing 11. The fan nozzle 13 is pivoted back and forth about a horizontal axis bb by the crank mechanism 17, 18. This results in an approximately rectangular area of irrigation because the nozzle bores 15 are inclined so differently against the radials aa that the water jets emerge in a fan-like arrangement approximately in one plane. The fan nozzle 13 is closed at the end by means of a screw plug 14. It is provided with an annular groove 19 at the transition to a section 13a on the transmission side. A roller 20 can be axially fitted onto the fan nozzle. The clear width of the roller 20 is slightly larger than the outer diameter of the cylindrical fan nozzle 13. When plugged in, the roller 20 rotatably rests on the fan nozzle 13, a running joint 23a remaining between the outer lateral surface of the fan nozzle and the inner lateral surface of the roller. The roller 20 has a collar 20a on the side facing the drive of the fan nozzle. The collar is formed by a short section of the roller of smaller diameter; it has two incisions 23, as can be seen in particular from FIGS. 3, 7. Inner cuts 22 of a disk-like, resilient ring 21, which run parallel to one another and engage axially on the collar 20a, engage in the incisions 23. When plugged in, the inner edges 22 are bent open and then snap into the incisions 23. Since the distance between the inner edges 22 of the ring 21 is smaller than the outer diameter of the fan nozzle 13, these inner edges snap slightly into the ring groove 19 of the fan nozzle when the roller 20 is axially attached. As a result, the wad is axially secured in its operating position. Atlardings.-is the distance. between the inner edges 22 slightly larger than the diameter of the roller 20 removed from the base 19a of the annular groove 19, so that these: inner edges 22: engage in the annular groove 19 with play. In addition, the width of the resilient ring 21 is somewhat less than the width of the Ring groove 19, so that the side surfaces of the Ring.21 in the area of their inner edges 22 in the ring groove 19 have play and so the smooth running of the roller 20 is ensured. Finally, at least the wall of the annular groove 19 facing away from the housing 11 is inclined towards the pivot axis bb. This inclination has the result that the inner edges 22 when the roller 20 is axially pulled off the inclined wall of the annular groove 19 and are slightly bent out, so that the roller 20 can be removed. The spherical cap design of the screw plug 14 makes it easier to attach the roller 20 by a certain centering effect. Even when the roller 20 is attached, the inner edges 22 of the ring 21 are briefly bent up until they engage in the annular groove 19. The openings in the roller are shown in the drawing, for example tängsaehlitza 24. The webs 20b remaining between the longitudinal slots are against the Rediale aa inclined. Each web 20b, which passes through the nozzle bores 15, the generatrix of the fan nozzle 13 when the roller 20 rotates, is therefore acted upon by the escaping water jets. This results in a torque for the roller 20, which operates as a turbine wheel. The water jets 16 emerging from the nozzle bores 15 are thereby disturbed. As a result, the drop size is reduced in a desired manner. The basic geometric figure of the irrigated area remains largely unchanged. The area is only getting smaller, because the water jet loses kinetic energy.

Die Lauffuge 23a der Walze 20 ist auf den axialen Bereich der Stege 20b beschränkt. Außerhalb der Lauffuge 23a ist die Walze 20 auf dem Mantel der Fächerdüse 13 mit Spial geführt.The running joint 23a of the roller 20 is limited to the axial region of the webs 20b. Outside the running joint 23a, the roller 20 is guided on the jacket of the fan nozzle 13 with a spial.

Im zeichnerisch dargestellten Ausführungsbeispiel legen die Düsenbohrungen 15 etwa in einer radialen Ebene der Fächerdüse 13. Die demzufolge in dieser radialen Ebene austretenden Wasserstrahlen 16 beaufschlagen die Flanken der Stege 20b, welche gegen diese Ebene geneigt sind. Dadurch ergibt sich das erwünschte Drehmoment für die Walze 20. Dieses Drehmoment kann aber auch dadurch erzeugt, werden, daß die Düsenbohrungen 15 der Fächerdüse 13 gegen die obengenannte radiale Ebene der Fächerdüse 13 geneigt und die abengenannten Flanken der Stege streng radial ausgerichtet sind. Penn auch in diesem Falle findet eine Beaufschlagung zur Erzeugung eines Drehmomentes statt.In the exemplary embodiment shown in the drawing, the nozzle bores 15 lie approximately in a radial plane of the fan nozzle 13. The water jets 16 consequently emerging in this radial plane act on the flanks of the webs 20b, which are inclined against this plane. This results in the desired torque for the roller 20. However, this torque can also be generated in that the nozzle bores 15 of the fan nozzle 13 are inclined against the above-mentioned radial plane of the fan nozzle 13 and the abovementioned flanks of the webs are strictly radially aligned. Penn also applies torque in this case.

Claims (10)

1. Sprinkler which is adjustable to meet various sprinkling requirements, for example, regarding the jet intensity and droplet size, and has a cylindrical fan-type nozzle (13) which is backwardly and forwardly pivotable about a substantially horizontal axis (b-b) and is provided with nozzle bores (16) which are substantially linearly disposed and are inclined towards the radial (a-a) of the fan-type nozzle (13) in such a varied manner that a fann-type disposition of the water jets (16) results, whereby the fan-type nozzle (13) co-aperates with a concentric adjusting sleeve which is mountable on said nozzle and is rotatable relative thereto, said sleeve having radial openings for adjustment of the sprinkling and being detachable from the fan-type nozzle (13) for a nonadjusted operation of said nozzle, characterized in that the adjusting sleeve is a rotatably mounted roller (20) - in the form of a turbine wheel - which encloses the cylindrical fan-type nozzle (13), thereby leaving a continuous gap (23a) and is actuable by the water jets (16) to produce a torque.
2. Sprinkler according to claim 1, characterized in that the internal diameter of the cylindrical roller (20) is slightly larger than the external diameter of the cylindrical fan-type nozzle (13).
3. Sprinkler according to claim 1 or 2, characterized in that the roller (20) has a collar (20a) provided with two diametrical notches (23) and is axially secured in an annular groove (19) in the fan-type nozzle (13) by means of a spring ring (21).
4. Sprinkler according to claim 3, characterized in that the disc-shaped ring (21) engages in the notches (23) in the collar (20a), and simultaneously in the annular groove (19) in the roller (20) by means of diametrical inner edges (22) which extend parallel to one another.
5, Sprinkler according to one of the preceding claims, characterized in that the openings (24) in the roller (20) are elongated slots (24), and in that the webs (20b) between the elongated slots (24) are inclined towards the radial (a-a) in the same direction.
6. Sprinkler according to one of the preceding claims, characterized in that, by means of internal surfaces which lie axially externally of the elongated slots (24), the roller (20) is conducted along the casing of the fan-type nozzle (13) with clearance.
7. Sprinkler according to one of the preceding claims, characterized in that the fan-type nozzle (13) is sealed, at its end remote from the drive, by a cap-shaped sealing screw (14).
8. Sprinkler according to one of the preceding claims 4-7, characterized in that the distance between the inner edges (22) of the ring (21) is shorter than the external diameter of the cylindrical fan-type nozzle (13).
9. Sprinkler according to one of the preceding claims 4-8, characterized in that the distance between the inner edges (22) of the ring (21) is slightly greater than the diameter of the roller (20) measured at the base (19a) of the annular groove (19).
10. Sprinkler according to one of the preceding claims 2―8, characterized in that the ring (21) engages in the annular groove (19) with clearance.
EP81106660A 1980-09-05 1981-08-27 Variable sprinkler for different irrigation requirements Expired EP0047444B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033417 1980-09-05
DE19803033417 DE3033417A1 (en) 1980-09-05 1980-09-05 ON DIFFERENT WATERING NEEDS VARIABLE SPRINKLERS

Publications (2)

Publication Number Publication Date
EP0047444A1 EP0047444A1 (en) 1982-03-17
EP0047444B1 true EP0047444B1 (en) 1984-06-27

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US (1) US4379523A (en)
EP (1) EP0047444B1 (en)
JP (1) JPS5787861A (en)
DE (1) DE3033417A1 (en)

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US4606500A (en) * 1984-10-01 1986-08-19 Rain Bird Consumer Products Mfg. Corp. Releasable coupling assembly for oscillating wave lawn sprinkler
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JPS5787861A (en) 1982-06-01
DE3033417A1 (en) 1982-04-22
EP0047444A1 (en) 1982-03-17
US4379523A (en) 1983-04-12
DE3033417C2 (en) 1987-06-25

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