EP3153238A1 - Vorrichtung zur kontrolle der schwingbewegung eines wassersprenglers und wassersprengler mit einer solchen vorrichtung - Google Patents

Vorrichtung zur kontrolle der schwingbewegung eines wassersprenglers und wassersprengler mit einer solchen vorrichtung Download PDF

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Publication number
EP3153238A1
EP3153238A1 EP16192353.7A EP16192353A EP3153238A1 EP 3153238 A1 EP3153238 A1 EP 3153238A1 EP 16192353 A EP16192353 A EP 16192353A EP 3153238 A1 EP3153238 A1 EP 3153238A1
Authority
EP
European Patent Office
Prior art keywords
barrel
sprinkler
movable abutment
annular member
abutment member
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
EP16192353.7A
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English (en)
French (fr)
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EP3153238B1 (de
Inventor
Arno Drechsel
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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
    • 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
    • B05B3/0472—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 the spray jet actuating a movable deflector which is successively moved out of the jet by jet action and brought back into the jet by spring action
    • B05B3/0477—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 the spray jet actuating a movable deflector which is successively moved out of the jet by jet action and brought back into the jet by spring action the spray outlet having a reversible rotative movement, e.g. for covering angular sector smaller than 360°
    • 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
    • B05B3/14—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with oscillating elements; with intermittent operation
    • B05B3/16—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with oscillating elements; with intermittent operation driven or controlled by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet

Definitions

  • the present invention generally finds application in the field of irrigation systems for agricultural and industrial applications, and particularly relates to a device for controlling the oscillation of a jet rotating sprinkler.
  • the invention further relates to a sprinkler that incorporates the aforementioned device.
  • Agricultural and/or industrial sprinklers are known in the art, which are connected to a line for supplying an irrigation liquid, e.g. water, and are designed to distribute a jet of such liquid to a soil portion to be irrigated.
  • an irrigation liquid e.g. water
  • a peculiar characteristic of these sprinklers is that they distribute a controlled amount of liquid to a given soil portion, to irrigate it in a substantially uniform manner.
  • the sprinklers may be either stationary, to always irrigate the same soil portion, or movable for substantially constant-speed sweeping of a given cultivated surface.
  • sprinklers that rotate about their vertical axis are equipped with a device that is adapted to both adjust the oscillation angle and to reverse the direction of rotation of the launch tube of the sprinkler.
  • a first type of sprinkler uses a totally mechanical reversing mechanism which is designed to selectively interact with the reversing member associated with the barrel.
  • such device has a plurality of limit stop members which interact with the reversing member and can be manually adjusted to set a predetermined fixed angular sector within which the launch tube oscillates.
  • These devices are usually adapted to be connected to programmable control units for automatic adjustment of the oscillation angle of the jet at predetermined time intervals.
  • US7051952 filed by the applicant hereof, discloses an irrigation system that comprises an electronic device designed to be placed at the base of the sprinkler and adapted to adjust the oscillation angle of the jet according to a time sequence that was stored beforehand by the user.
  • the system has an encoder that is adapted to detect the instant position of the barrel and is composed of a rotating metal disk that magnetically interacts with a Hall effect sensor rigidly joined to the base.
  • IT1408444 discloses a system for reversing the rotation of a rotating sprinkler, which comprises a ring designed to be fitted to the sprinkler and having a pair of limit stop members that define respective limit stop positions for the rotation of the launch tube.
  • One of the limit stop members is connected to a mechanical actuator which is adapted to automatically promote its descent after a predetermined delay that can be preset by the user, to allow the passage of the reversing member and thus cause the barrel to oscillate within a sector complementary to the initial sector.
  • the technical problem addressed by the invention may be deemed to consist in providing a device for controlling the oscillation of a rotating jet sprinkler that is simple to make, has a small size and is highly reliable.
  • the object of the present invention is to solve the above mentioned technical problem and obviate the above discussed drawbacks, by providing a device for controlling the oscillation of a rotating jet sprinkler that is highly efficient and relatively cost-effective.
  • a particular object of the present invention is to provide a device for controlling the oscillation of a rotating jet sprinkler that has particularly small dimensions.
  • Another object of the present invention is to provide a device for controlling the oscillation of a rotating jet sprinkler that is easy to make and is also particularly simple to assemble and operate.
  • a further object of the present invention is to provide a device for controlling the oscillation of a rotating jet sprinkler that has low costs.
  • Another object of the present invention is to provide a device for controlling the oscillation of a rotating jet sprinkler that is highly reliable, has low maintenance requirements and is easy to use.
  • the invention provides a sprinkler comprising the device for automatic adjustment of the oscillation angle as defined in claim 14.
  • numeral 1 shows and designates a device for controlling the oscillation of a rotating jet sprinkler 2 which is configured to distribute a liquid l, e.g. water, to a soil area to be irrigated.
  • a liquid l e.g. water
  • the sprinkler 2 comprises a stationary base 3 having an inlet 4 which is designed for connection to a supply line A for the irrigation liquid l.
  • a barrel 5 is rotatably mounted to the stationary base 3, to swing about a substantially vertical axis T, thereby distributing a substantially uniform amount of liquid l over a semicircular soil portion.
  • the device 1 comprises an reversing mechanism 6 associated with the sprinkler 2 and adapted to interact with one or more limit stop members 7, 8 rigidly joined to the stationary base 3 to invert the rotation direction of the barrel 5.
  • the reversing mechanism 6 comprises a rod 9 that selectively swivels about its longitudinal axis R and has an end with a downwardly projecting wing 10 fitted thereon, such wing interacting with the limit stop members 7, 8.
  • the latter are designed to be manually adjusted by a user and define respective limit oscillation positions of the launch tube 5, such positions being designed to be fixed during operation of the sprinkler 2.
  • the device 1 for controlling the oscillation of the sprinkler further comprises at least one movable abutment member 11, which is adapted to be secured to the support base 3 of the sprinkler 2 in a predetermined angular position and to selectively interact with the wing 10 of the reversing mechanism to form respective oscillation angles ⁇ , ⁇ ' with the limit stop members 7, 8, as shown in FIG. 2 .
  • the movable abutment member 11 forms corresponding oscillation angles ⁇ , ⁇ ' of the barrel 5 with the limit-stop members 7, 8.
  • the device 1 may comprise a plurality of angularly spaced movable abutment members 11.
  • the movable abutment member 11 may comprise a lever 12 having a longitudinal axis of extension L, and hinged to a first annular member 13 that is adapted to be stably secured to the stationary base 3.
  • the lever member 12 may comprise a substantially horizontal upper part 14 joined to a substantially vertical lower part 15 having a specially shaped projecting edge 16.
  • the lower part 15 extends transversely downwards from the bottom surface 17 of the upper part 14.
  • a substantially horizontal passageway 18 may be formed in the lower part 15, for receiving a cylindrical pin 19 stably connected to the first annular member 13 to allow the movable abutment member 11 to rotate about a transverse hinging axis X extending through the pin 19.
  • the specially shaped projecting edge 16 of the lower part 15 may have a substantially V-shaped sectional shape.
  • the first annular member 13 may be fitted to the base 3 of the sprinkler 2 and rotatably attached thereto by means of a plurality of first connecting screws 20, which are adapted to fit into an annular groove formed on the base 3, not shown.
  • a knob 21 is also provided, which is designed to be manually actuated by the user to lock the first annular member 13 in a predetermined angular position that has been set by the operator.
  • the operator may easily adjust the position of the abutment member 11 relative to the limit stop members 7, 8 to change the angular oscillation ranges ⁇ , ⁇ ' of the barrel 5.
  • the first annular member 13 may have a semicircular recess 22 delimited by a pair of substantially vertical walls 23, 24 with respective brackets 25, 26 mounted thereto for supporting the movable abutment member 11.
  • each bracket 25, 26 has a transverse section 27, 28 fixed to the corresponding wall 23, 24 of the recess 22 by means of second connecting screws 29 and a longitudinal section 30, 31, having a through hole 32 for receiving the cylindrical pin 19.
  • the device 1 further comprises movement means 33, operably associated with the first movable abutment member 11 to promote movement thereof between an active position in which such member interacts with the reversing mechanism 6 and an inactive position in which it does not interact with the reversing mechanism 6, allowing adjustment of the oscillation angle.
  • the interaction between the movable member 11 and the reversing mechanism 6 causes reversal of the direction of rotation of the barrel 5 whereas, when the abutment member 11 is in the active position and does not interact with the mechanism 6 the oscillation angle may be adjusted.
  • the upper part 14 of the lever member 12 may be substantially horizontal and coplanar with the top surface 34 of the first annular member 13, as shown in FIG. 7A .
  • the lever 12 will rotate downwards about the hinge axis X across a predetermined angular range ⁇ from 20° to 60°, as shown in FIG. 7B .
  • the movable abutment member 11 is swivelling in a substantially vertical plane ⁇ and is at least partially made of a ferromagnetic material.
  • the movement means 33 have at least one electromagnetic actuator 35 which is designed to generate an electromagnetic force F acting on the movable abutment member 11 to promote unidirectional movement thereof from the active position to the inactive position.
  • the movable abutment member 11 may be made of a material selected from the group comprising ferromagnetic metal alloys, and the electromagnetic actuator 35 may consist of a permanent electromagnet with a substantially cylindrical shape and a substantially vertical magnetic axis M.
  • the electromagnetic actuator 35 may be removably mounted to the first annular member 13 into a housing 36 formed between the two vertical walls 23, 24 of the recess 22.
  • the actuator 35 will be accommodated in a position in which it substantially faces an end portion 37 of the upper part 14 of the movable abutment member 11. Furthermore, it will have a substantially flat and horizontal upper face 38 adapted to selectively interact with such end portion 37.
  • the upper face 38 of the actuator 35 may substantially contact the end portion 37 of the lever member 12 when the movable abutment member 11 is in the active position, as shown in FIG. 7A , or may be at a considerable distance from the end portion 37 of the lever member 12 when the abutment member 11 is in the inactive position, as shown in FIG. 7B .
  • the magnetic force F generated by the actuator 35 will only act on the end portion 37 of the movable abutment member 11, which will be necessarily made of a ferromagnetic material.
  • the actuator 35 will be at such a distance from the end position 37 that the action of the magnetic force F on the lever member 12 will be substantially nullified.
  • the actuator may comprise at least one permanent magnet 39 adapted to generate a magnetic attractive force F having a predetermined value on the upper part 14 of the lever 12, to maintain the movable abutment member 11 in the active position.
  • the electromagnetic actuator 35 may also have a pair of terminals 40, 41 upon which a predetermined voltage V may be applied at predetermined times, for changing the orientation of the magnetic field and generate a magnetic repulsive force F on the end portion 37 of the lever 12.
  • the actuator 35 may be supplied with an electric voltage V ranging from 4.5 V to 24 V, typically 9 V.
  • the device 1 may comprise an electronic control unit 42, as diagrammatically shown in FIG. 1 , which is connected to the terminals 40, 41 and is adapted to generate the nominal voltage V required by the actuator 35.
  • the electronic control unit 42 may comprise an electronic timer connected to a voltage generator, both not shown.
  • the electronic timer may be programmed by the user for selective actuation of the voltage generator at predetermined times.
  • the movable abutment member 11 may be switched in a time-controlled manner from the active position to the inactive position, as needed by the user.
  • the electronic control unit 42 may be possibly connected to a remote management system by means of a network adapter or a GPS module, also not shown.
  • the electronic control unit 42 may be connected to electric charging means, not shown, which may consist of a rechargeable battery, a photovoltaic module, a socket for an external power source, or other similar devices.
  • the device 1 may comprise a second annular member 43 adapted to be fitted to the base 3 of the sprinkler 2 and to rotate relative to the first annular member 13.
  • a circular step 45 may be formed at the bottom surface 44 of the first annular member 13, and its diameter ⁇ 1 and depth p will match the inside diameter ⁇ 1 and the thickness s of the second annular member 43 respectively.
  • the second annular member 43 may be mounted to the bottom of the first annular member 13 and freely rotate relative to the latter without projecting out of its bottom surface 44.
  • the second annular member 43 may be equipped with a substantially radial catching member 46 interacting with the inversion mechanism 6 of the launch tube 5 and a radial cam 47 rigidly joined to the catching member 46 and adapted to selectively interact with the projecting edge 16 of the lower part 15 of the movable abutment member 11.
  • the catching member 46 may substantially have a step shape and will be driven into rotation by the reversing mechanism 6 when the movable abutment member 11 is in the inactive position, as shown in the sequence of FIGS. 9A to 9D .
  • the radial cam 47 will interact with the specially shaped edge 16 of the lower part 15 and thereby cause the movable abutment member 11 to move back from the inactive position to the active position.
  • Positioning means 48 are further provided, which are adapted to maintain the first annular element 13 in a reference position with respect to the second annular member 43 when the abutment member 11 is in the active position.
  • the positioning means 48 may include a spring 49 adapted to be received in a blind hole 50 formed in the first annular member 13, such spring having an end 51 interacting with a spherical member 52 to generate thereon a substantially vertical downward force, as best shown in FIGS. 4 , 6 and 8 .
  • a circular or semicircular seat 52 is formed on the second annular member 43, for accommodating the spherical member 52.
  • the presence of the spherical member 52 in the seat 53 will provide mechanical connection of the first annular member 13 to the second annular member 43 in the reference position. Nevertheless, the locking force exerted by the spherical member 52 on the second annular member 43 will be relatively small and will not prevent the latter from being driven into rotation by the reversing mechanism 6 for inverting the barrel 5.
  • the invention provides a jet sprinkler 2 comprising a stationary support base 3 adapted to be connected to the supply line A for supplying the irrigation liquid l and having at least one limit stop member 7, 8.
  • a barrel 5 is mounted to such base 3 to rotate about a vertical axis of rotation T, and has an inversion mechanism 6 adapted to interact with the limit stop members 7, 8 to delimit respective angular oscillation ranges ⁇ , ⁇ '.
  • an oscillation control device 1 as described hereinbefore is mounted between the stationary base 3 and the rotating launch tube 5, which device comprises at least one abutment member 11 that can be selectively moved between an active position and an inactive position under a magnetic force F generated by an appropriate electromagnetic actuator 35.
  • the present invention may find application in industry, because it can be produced on an industrial scale in irrigation system manufacturing factories.

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  • Nozzles (AREA)
  • Special Spraying Apparatus (AREA)
  • Catching Or Destruction (AREA)
EP16192353.7A 2015-10-06 2016-10-05 Vorrichtung zur kontrolle der schwingbewegung eines wassersprenglers und wassersprengler mit einer solchen vorrichtung Not-in-force EP3153238B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A004109A ITUB20154109A1 (it) 2015-10-06 2015-10-06 Dispositivo per il controllo del brandeggio di un irrigatore rotante a getto ed irrigatore incorporante tale dispositivo

Publications (2)

Publication Number Publication Date
EP3153238A1 true EP3153238A1 (de) 2017-04-12
EP3153238B1 EP3153238B1 (de) 2018-06-27

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EP16192353.7A Not-in-force EP3153238B1 (de) 2015-10-06 2016-10-05 Vorrichtung zur kontrolle der schwingbewegung eines wassersprenglers und wassersprengler mit einer solchen vorrichtung

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EP (1) EP3153238B1 (de)
IT (1) ITUB20154109A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700073460A1 (it) * 2017-06-30 2018-12-30 Arno Drechsel Sistema di controllo temporizzato dei settori di irrigazione per un irrigatore ad impulso ed irrigatore ad impulso comprendente tale sistema di controllo
EP3769848A1 (de) * 2019-07-22 2021-01-27 Nelson Irrigation Corporation Automatischer umkehrbarer bogensprinkler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024110819A1 (en) * 2022-11-22 2024-05-30 Komet Austria Gmbh Impulse sprinkler with system for adjusting the swinging angle and relative method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674492A (en) * 1953-05-19 1954-04-06 Sciuto Michele Lawn sprinkler
US3883073A (en) * 1972-07-07 1975-05-13 Tecnoma Oscillating spraying apparatus
FR2782890A1 (fr) * 1998-09-08 2000-03-10 Perrot Sa Perfectionnement a un procede pour optimiser un apport d'eau sur un champ de cultures au moyen d'un canon d'arrosage pivotant, et systeme de mise en oeuvre du procede
WO2002081099A1 (en) * 2001-04-03 2002-10-17 Nelson Irrigation Corporation High volume sprinkler automated arc changer
US7051952B2 (en) 2001-01-30 2006-05-30 Arno Drechsel Irrigation system
US20080179421A1 (en) * 2007-01-29 2008-07-31 Nelson Irrigation Corporation Automatic high-volume sprinker arc changer for traveler irrigators
EP2060167A2 (de) * 2007-11-14 2009-05-20 Irrimec S.r.l. Bewässerungsanlage
DE102008033508A1 (de) * 2008-07-07 2010-01-14 Gardena Manufacturing Gmbh Regner und Umschalteinrichtung für einen Regner
ITMO20110283A1 (it) 2011-11-07 2013-05-08 Sime Idromeccanica S R L Dispositivo di inversione con extra-corsa per un irrigatore.
ITMO20110282A1 (it) * 2011-11-07 2013-05-08 Sime Idromeccanica S R L Dispositivo di inversione multi angolo per irrigatori.
US20140014739A1 (en) * 2012-07-13 2014-01-16 Tzu-Lin Huang Impingement sprinkler

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674492A (en) * 1953-05-19 1954-04-06 Sciuto Michele Lawn sprinkler
US3883073A (en) * 1972-07-07 1975-05-13 Tecnoma Oscillating spraying apparatus
FR2782890A1 (fr) * 1998-09-08 2000-03-10 Perrot Sa Perfectionnement a un procede pour optimiser un apport d'eau sur un champ de cultures au moyen d'un canon d'arrosage pivotant, et systeme de mise en oeuvre du procede
US7051952B2 (en) 2001-01-30 2006-05-30 Arno Drechsel Irrigation system
WO2002081099A1 (en) * 2001-04-03 2002-10-17 Nelson Irrigation Corporation High volume sprinkler automated arc changer
US20080179421A1 (en) * 2007-01-29 2008-07-31 Nelson Irrigation Corporation Automatic high-volume sprinker arc changer for traveler irrigators
EP2060167A2 (de) * 2007-11-14 2009-05-20 Irrimec S.r.l. Bewässerungsanlage
DE102008033508A1 (de) * 2008-07-07 2010-01-14 Gardena Manufacturing Gmbh Regner und Umschalteinrichtung für einen Regner
ITMO20110283A1 (it) 2011-11-07 2013-05-08 Sime Idromeccanica S R L Dispositivo di inversione con extra-corsa per un irrigatore.
ITMO20110282A1 (it) * 2011-11-07 2013-05-08 Sime Idromeccanica S R L Dispositivo di inversione multi angolo per irrigatori.
US20140014739A1 (en) * 2012-07-13 2014-01-16 Tzu-Lin Huang Impingement sprinkler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SIME-IDROMECCANICA S R L: "Rotorkit - Mechanical timered devices for automatic reversal of the irrigation direction", INTERNET CITATION, 4 July 2012 (2012-07-04), pages 1 - 2, XP002682782, Retrieved from the Internet <URL:http://www.sime-sprinklers.com/pdf/LG/13%20Rotorkit.pdf> [retrieved on 20120904] *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700073460A1 (it) * 2017-06-30 2018-12-30 Arno Drechsel Sistema di controllo temporizzato dei settori di irrigazione per un irrigatore ad impulso ed irrigatore ad impulso comprendente tale sistema di controllo
EP3421137A1 (de) * 2017-06-30 2019-01-02 Arno Drechsel Zeitabhängiges steuersystem des bewässerungssektors eines impulssprinklers und einen dieses steuersystem umfassenden impulssprinkler
EP3769848A1 (de) * 2019-07-22 2021-01-27 Nelson Irrigation Corporation Automatischer umkehrbarer bogensprinkler
US11090671B2 (en) 2019-07-22 2021-08-17 Nelson Irrigation Corporation Automatic reversible arc sprinkler
EP3912729A1 (de) * 2019-07-22 2021-11-24 Nelson Irrigation Corporation Automatischer umkehrbarer bogensprinkler

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ITUB20154109A1 (it) 2017-04-06

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