EP0970752A2 - Method for adjusting the irrigation pattern of an sprinkling device and sprinkling device - Google Patents

Abstract

An adjustable lawn sprinkler has a line of water jets along a horizontal body which sweeps to either side to produce a water spread pattern. The individual jets are adjustable to produce different spread patterns which can be symmetric or asymmetric and which produce different rates of water application. The row of water jets can be side to either side or tilted at either or both ends to produce the different spread patterns. The line of jets is mounted on a flexible support.

Description

The invention relates to a method for adjusting the Sprinkler image of a sprinkler, especially one Square sprinkler, and a sprinkler.

Irrigation devices are mainly used in the garden area for comprehensive water supply to plant areas used, but can also be used to moisten other surfaces, such as sand tennis courts to be kept moist or the like. A generic irrigation device is usually installed in a fixed location, at a Water supply connected and creates a sprinkler image, that the shape and size of the irrigated area as well as the Irrigation density determined. For variable use of such irrigation devices, it is desirable that To be able to adjust the sprinkler pattern to the irrigation device to adapt to the intended use.

Irrigation devices of the generic type have one on one Liquid supply, especially water supply, connectable nozzle arrangement with a large number of nozzles, whose nozzle axes determine the direction of radiation of a nozzle are changing direction. A or is used as the nozzle arrangement multi-dimensional array of nozzles with essentially designated predetermined relative positions. A nozzle is usually used as a single nozzle for delivering a water jet trained, but can also be used as a spray nozzle Dispensing a spatially extended spray mist his.

Pendulum irrigation devices are already known a water pipe with a plurality of nozzle openings along a top of the swiveling back and forth about its longitudinal axis Have water pipe. The irrigation width of a such square sprinkler is fixed during the length the irrigation area by the swing range of the pendulum movement is adjustable. The adjustment options of such Sprinklers are limited.

In one from international patent application WO 95/17262 known circular sprinkler is a circular sprinkler picture an arrangement of individual nozzles generated in one or several vertical rows on one around a vertical axis pivotable sprinkler head are arranged. The partial rays of the several nozzles become one shortly after the nozzle exits united single beam. The division into several nozzles enables a gradual adjustment of the flow rate. For adjusting the throw of the uniform jet all individual nozzles in a vertical row are retained the parallel alignment of the nozzles at the same time adjusted the same angle. Circular sprinklers are for irrigation of straight lawns, for example in Area of path edges, only suitable to a limited extent. The adjustment options the well-known circular sprinkler are also on the Limited adjustment of the irrigation area.

The invention has for its object a method and to create a device that has a variable setting the sprinkler image of a sprinkler on simple Enable way.

The invention proposes a method for solving this problem according to claim 1 and a sprinkling device according to claim 6 before.

In the method according to the invention takes place with generic Irrigation devices the adjustment of the nozzle axes such that nozzle axes tilt relative to each other become. This makes it possible by a sprinkler change the irrigation density generated because the Blasting a radiation field generated by the nozzle arrangement can be pulled apart more or less relative to each other or be merged. So that's also a method for adjusting or changing the irrigation density created a sprinkler. Through the Relative tilting of nozzle axes against each other can also the size of the area to be irrigated is changed. If desired, can change with a change in the irrigation density Changing the water pressure, if necessary, keeping it constant of the area-related average irrigation volume reached become.

In the nozzle arrangement, individual nozzles can be one-dimensional or multi-dimensional, especially two-dimensional Field be arranged, preferably one uniform distribution of individual nozzles is present. Prefers is a one-dimensional, i.e. linear, especially rectilinear Arrangement of individual nozzles so a straight row of nozzles. The method enables the nozzle axes or the liquid jets generated by the nozzle arrangement, fan-like in the manner of a particularly flat fan pulled apart or merged symmetrically or asymmetrically can be. One determined by the adjustment Arrangement of the nozzles can be moved collectively, for example, such that a beam fan oscillates around a pendulum axis lying in a fan plane swung back and forth becomes.

The method enables a variety of advantageous adjustment options. It is usually the case with the Adjustment of nozzle axes collectively or at the same time relatively are tilted towards each other. It is also possible to single Nozzles or nozzle groups of the nozzle order relative to the tilting others, creating within an irrigation field Areas of different irrigation densities are created can be.

A uniform irrigation density in different Settings can be done in a preferred method achieved that the relative tilt angle during adjustment between adjacent nozzle axes of the nozzle arrangement by essentially the same angular amounts or angular increments to be changed. It is usually the case that Nozzle axes when adjusting by different absolute tilt angles be tilted.

It is possible, for example by rasterizing the setting options, a gradual adjustment of the sprinkler pattern allow for specific irrigation densities and / or ranges select specifically. It is preferred if the nozzle axes what can be adjusted continuously or continuously a particularly sensitive setting of irrigation density and / or size and / or shape of the irrigation area.

An advantageous embodiment allows a large number various setting options or degrees of freedom of Adjustment, whereby not only the irrigation density can be adjusted is, but also, preferably independent of the irrigation density, the location and / or shape of the one preferred irrigation equipment installed in a fixed position Irrigation area. In particular, it can be the case that when adjusting at least one nozzle axis, or one Group of nozzle axes, essentially not adjusted, while other nozzle axes relative to the non-obstructed Nozzle axes, and preferably relative to each other, tilted become. For example, in a field of nozzles, one internal nozzle or group of nozzles remain unchanged, while adjacent to the edges of the nozzle array of away from the tip of the nozzle or tilted towards it become. With this adjustment, the irrigation remains in the the unobstructed nozzle axes define the center of gravity of the Irrigation area essentially unchanged while it changes towards the edges. It may also be the case that one or more edge nozzles of a field remains unchanged, while other nozzle axes are tilted. This can limit the irrigation area from the side even when adjusting the position of the nozzle remain unchanged, for example in the range of Edging away is an advantage.

A particularly suitable one for carrying out the method Irrigation device has at least one nozzle arrangement of the described type and a, preferably manually operable, Adjusting device for adjusting the directions of the nozzle axes, the adjustment device tilting means for Tilting of nozzle axes relative to each other. At of the nozzle arrangement are preferably single jet nozzles trained nozzles preferably in a regular Distribution arranged, preferably adjacent nozzles arranged at substantially equal distances from one another are. This enables uniform irrigation densities easy to achieve. The nozzle arrangement is preferred a single, especially straight, row of nozzles. It it is also possible to use a two-dimensional, preferably flat field, for example a double row or multi-row, or in a three-dimensional arrangement to arrange.

The adjustment of the nozzle axes that determine the direction of radiation can be changed by changing the flow paths within fixed nozzles may be reached during the adjustment. Are particularly easy to manufacture and easy to adjust Nozzle arrangements in which the individual nozzles each have one the liquid supply can be connected to the nozzle inlet and, with an axial distance from it, one for dispensing liquid have provided nozzle outlet, whereby by the relative Arrangement of nozzle inlet and nozzle outlet the nozzle-fixed Nozzle axis is defined and the adjustment of the nozzle axes by relative adjustment of the nozzle inlet and nozzle outlet he follows. The nozzle inlet and / or nozzle outlet can be adjusted are moved, in preferred embodiments the nozzle inlets are substantially retained and the nozzle outlets are arranged movably transversely to the nozzle axis. The adjustment or tilting of the nozzle axes can accordingly by moving the nozzle outlets transversely to the nozzle axes can be achieved.

The individual nozzles of the arrangement can be separated from one another or separate, intrinsically rigid individual nozzles, which, preferably tiltable in the area of the nozzle inlets are, preferably in ball or roller joints. At a preferred embodiment has at least the nozzle arrangement a coherent, preferably band-shaped Nozzle body made of elastically flexible material on which several, preferably all, nozzles of the nozzle arrangement, preferably in one piece, are arranged. One row of nozzles forming nozzle band can be sealed in such a way, for example tubular housing body of the liquid supply be used that the nozzle approaches by appropriate Wall openings of the housing protrude outwards. To the outwardly projecting, flexible or flexible nozzle outlet areas can tilt the nozzle axes attack.

In a preferred embodiment, the tilting means a first guide body with at least one, preferably a plurality of first guide openings and a movable relative to the first guide body second guide body with at least one, preferably a plurality of second guide openings, the Guide body one above the other and the guide openings in such a way are arranged to overlap each other, that in the overlap area a first and a second guide opening a nozzle guide opening is formed. A nozzle guide opening preferably encloses a single nozzle, in particular whose outlet area, on all sides and forms lateral Guide surfaces for the nozzle. By suitable relative movement the guide body to each other shift the positions the overlap areas and thus the nozzle guide openings, whereby the nozzles can be tilted. It can the relative displacement of the guide bodies can be chosen that the geometric arrangement of adjacent nozzle guide openings changes relative to each other, causing a Relative tilt of the nozzles can be generated against each other.

It is advantageous if the first guide openings and / or the second guide openings through preferably straight longitudinal slots, in particular essentially with constant Width, are formed, the first guide openings at least in sections at an angle to the second Guide openings run, for example at an angle between 30 ° and 60 °. It can be generally diamond-shaped Nozzle guide openings are created, the inside diameter the relative displacement of the guide body does not change or changes only very slightly.

In a preferred embodiment, the second guide body immobile or fixed to a housing of the Irrigation device attached, especially integral Part of the housing while the first guide body movably mounted on the housing, in particular slide bearings is. The fixed, second guide body and the movable one first guide bodies can in particular be used as straight guide strips be formed in which the guide openings are attached. The adjustment options can be one Include vertical adjustment of the guide body against each other. Usually, however, there is an essentially flat one Adjustability before, in particular the first guide body against the second guide body across a row of nozzles slidably and / or obliquely to a row of nozzles is employable.

The adjustment device has to set the desired sprinkler pattern a preferred embodiment at least a preferably coupled with at least one guide body manually operated actuator for relative adjustment the position of the first and second guide bodies. A linear relative displacement can be achieved using a single actuator and / or a relative rotation of the guide body to an extent defined by the type of coupling be achieved. A preferred embodiment has several Degrees of freedom of adjustment. In particular, there are two Actuators that can be operated independently of one another are provided, which are preferably at opposite ends of the movable attack the first guide body.

Everyone can adjust the guide body against each other suitable actuators can be used. For example a single adjustment of the variable in their beam directions Nozzles in almost any combination through separate Adjustment means possible. However, easy to use are preferred Actuating means by which a collective adjustment of the separate rays can be achieved. Most notably actuators or actuating devices are preferred for between the set sprinkler picture and the Position of the at least one actuator there is an obvious correlation. Examples of such adjustment devices the particular actuators in the form of linearly displaceable sliders or rotatable, if necessary lever-operated setting wheels can include in Connection with the description of preferred embodiments explained in more detail.

These and other features go beyond the claims also from the description and the drawings, wherein the individual features individually or separately several in the form of sub-combinations in one embodiment of the invention and in other fields be and can represent advantageous designs. The Subdivide the application into individual sections as well Subheadings limit those made under them Statements are not generally applicable.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

einen Längsschnitt in einer vertikalen Ebene durch ein Regnergehäuse einer Ausführungsform einer erfindungsgemäßen Beregnungsvorrichtung,

Fig. 2

eine Draufsicht auf ein Regnergehäuse der in Fig. 1 gezeigten Art, das in einem Standfuß der Beregnungsvorrichtung um seine Längsachse verschwenkbar gelagert ist,

Fig. 3

eine schrägperspektivische Ansicht eines leistenförmigen, bewegbaren ersten Führungskörpers mit einer Vielzahl schräg zur Längsrichtung verlaufender Führungsschlitze,

Fig. 4

einen Querschnitt entlang der Linie IV-IV der Beregnungsvorrichtung von Fig. 1,

Fig. 5

einen Querschnitt entlang der Linie V-V in Fig. 1,

Fig. 6

einen Querschnitt entlang der Linie VI-VI in Fig. 1,

Fig. 7 (a)-(d)

verschiedene Einstellungen der gegeneinander verschiebbaren Führungskörper der Beregnungsvorrichtung gemäß Fig. 1 bis 6,

Fig. 8 (a)-(e)

verschiedene Einstellungen des durch die Beregnungsvorrichtung erzeugbaren Strahlfächers in Abhängigkeit von der Position der endseitig angeordneten Schieber,

Fig. 9

eine andere Ausführungsform einer Beregnungsvorrichtung im Bereich einer ein Stellrad aufweisenden Steilvorrichtung,

Fig. 10

eine bewegliche Führungsleiste einer anderen Ausführungsform.

Embodiments of the invention are shown in the drawings and are explained in more detail below. The drawings show:

Fig. 1

2 shows a longitudinal section in a vertical plane through a sprinkler housing of an embodiment of a sprinkling device according to the invention,

Fig. 2

2 shows a plan view of a sprinkler housing of the type shown in FIG. 1, which is mounted in a base of the sprinkling device so as to be pivotable about its longitudinal axis,

Fig. 3

2 shows an oblique perspective view of a strip-shaped, movable first guide body with a plurality of guide slots running obliquely to the longitudinal direction,

Fig. 4

2 shows a cross section along the line IV-IV of the irrigation device from FIG. 1,

Fig. 5

2 shows a cross section along the line VV in FIG. 1,

Fig. 6

2 shows a cross section along the line VI-VI in FIG. 1,

Fig. 7 (a) - (d)

different settings of the mutually displaceable guide body of the irrigation device according to FIGS. 1 to 6,

Fig. 8 (a) - (e)

various settings of the jet fan that can be generated by the irrigation device as a function of the position of the slides arranged at the ends,

Fig. 9

another embodiment of a sprinkling device in the region of a steep device having a setting wheel,

Fig. 10

a movable guide rail of another embodiment.

In Fig. 1 is a longitudinal section along a vertical plane by an embodiment of a square sprinkler Irrigation device 1 shown. One in cross section oval, tubular plastic sprinkler housing 2 (FIGS. 4, 5, 6) is in an approximately semi-cylindrical stand open at the top 3 (Fig. 2) rotatably about its longitudinal axis 4 and about a water-operated drive 5, not shown in detail the longitudinal axis can be moved back and forth. At the top of the sprinkler housing is a nozzle arrangement 6 in the form a straight row of nozzles with eighteen in the longitudinal direction of the Row of nozzles evenly spaced apart from each other 7 arranged, each of the nozzles a water jet in a radiation direction coinciding with the nozzle axis 8 releases when from a fluid supply, not shown Water is passed under pressure into the interior of the housing 2 becomes.

The nozzles of the nozzle arrangement are on a coherent, band-shaped nozzle body or nozzle band 9 made of rubber-elastic or similar one-piece elastic material trained with the tape. Each of the also good in Figs. 4 and 5 individual nozzles 7 to be recognized has an inside of the Sprinkler housing funnel-shaped nozzle inlet 10, which has several inward-pointing around its inner circumference, has axial guide webs 11 for low-water flow. in the further course is towards the nozzle outlet 12, after an in essential cylindrical section, a section with itself continuously reduced to the outlet 12 inner cross-section provided that with in an outlet-side outer portion passes essentially cylindrical inner cross section. The outer contour of the nozzles also tapers in one Transition to the outlets. This nozzle shape is particularly advantageous for those trained in the invention Deformation caused by sprinklers to change beam direction, because the continuous rejuvenation even with stronger ones Bends up to, for example, approx. 40 ° compared to the one shown vertical alignment, not kinking.

The nozzles are in the area of the nozzle inlets 11 from the inside the sprinkler housing 2 into a series of round nozzle holding openings 13 self-holding by means of barb-like projections and used self-sealing. The nozzle outlets 12 can due to the rubber elasticity of the nozzles against the Nozzle inlets 10 compared to the untilted shown Parallel position of the nozzles tilted or bent sideways as will be explained below.

Above the housing 2 with the nozzle holding openings 13 a movable with respect to the housing transverse to the axis 4, first guide body 15 in the form of a long, straight Plastic bar arranged by a top with respect to the housing 2, a second guide body forming bar 16 is covered. 3 easily recognizable bar 15 which is perpendicular to both ends rectangular grooves running in their longitudinal direction and open at the top 17 to guide the transverse displacement of the ends has one of the number of nozzles in the longitudinal direction corresponding number extending transversely to the longitudinal direction, approximately cylinder-shaped bulges 18. In the area of each of the Bulges is one at an angle of approximately 60 ° to the longitudinal direction the bar running vertically through Longitudinal slot 19 arranged, the slot width essentially the outer diameter of the nozzles 7 in the area of Nozzle outlets 12 corresponds. Through each of the slots protrudes in the assembled condition of the sprinkler (Fig. 1) one of the nozzles 7 of the nozzle series.

The movable bar 15 works with the one in FIG. 2 in a top view recognizable, arranged above the bar 15, fixed, second bar 16 together along their In the longitudinal direction, a number corresponding to the number of nozzles of longitudinal slots 20, the longitudinal direction of which is parallel to Longitudinal direction of the row of nozzles is aligned. Instead of Row of equally spaced, elongated slots 20, the only one nozzle at a time, a longer one, if necessary continuous guide slot can be provided, the several especially leads all nozzles laterally. As in Figs. 1, 4, 5, 6 can be seen, the fixed bar 16 is one of the Sprinkler housing 2 separate part, which in the longitudinal direction in axially extending longitudinal grooves 22 on the outside of the housing is introduced. The second bar 16 can also be a component of the sprinkler housing. The fixed bar is in the Example with a uniform wall thickness and one according to FIG following the periodic bulge of the sliding bar Shaping performed (Fig. 1), the possible Inclination of the sliding bar 15 with respect to the fixed bar 16 taken into account in the shape of the bulges is.

The two strips 15, 16 are in touch contact one above the other, the second bar 16 with respect to the nozzle bar fixed and the first bar 15 across Row of nozzles (perpendicular to the paper plane of Fig. 1) if necessary Can be moved parallel to axis 4 and / or at an angle to the row of nozzles is employable. An adjustment of the first bar in Longitudinal direction of the housing is due to the interlocking Prevents bulges.

Define how particularly well recognizable in FIG. 7 (a) the intersecting through-slant slots 19 of the first bar 15 and the through longitudinal slots 20 of the fixed bar 16 in their overlap area or to the Crossing points diamond-shaped nozzle guide openings 23 for the nozzle outlets and thus give one of the for each nozzle variable relative position of the guide body 15, 16 dependent position of the nozzle outlets and thus tilt position of the nozzle axes. The wall thicknesses of the strips 15, 16 in The area of the slots 19, 20 are appropriately dimensioned such that the inner surfaces of the slots on the nozzle guide surfaces for the cylindrical section of a nozzle, through which it can be tilted in the desired direction, without squeezing the nozzle.

To adjust the first bar 15 with the oblique to Slots 19 extending slots 19 is in the end region this bar is a mechanical attack on the bar end Device provided with the last of the last is mechanically coupled that an adjustment of the device moves the respective end of the ledge across the row of nozzles. Each last end can be independent of the other Ledge ends are moved in the transverse direction, which is the number the degrees of freedom of the settings compared to one possible pure pivoting movement of the adjustable Strip around an axis perpendicular to the paper plane elevated.

The lateral displacement of the ends of the first bar 15 takes place in the embodiment shown by mechanical actuatable steep devices or actuators in the form of Sliders 24, 25 on the mediation from oblique to the longitudinal direction the bar or extending to the direction of displacement, guide slots 26, 27 provided in the slides, in each of a driver pin 28, 29 an extension engages the tab forming tab.

The method for carrying out this embodiment Adjustment of the sprinkler picture of the square sprinkler is in following explained in particular with reference to FIGS. 7 and 8. Fig. 7 shows four different relative positions of the with the slanted bar 19 provided, displaceable bar 15th relative to the fixed, second bar, of which only the longitudinal slots extending in the longitudinal direction of the nozzle arrangement 20 are shown in Fig. 7 (a). The information "above" and "below" are on the plane and orientation of the drawing referred and refer to directions perpendicular to the sprinkler to the longitudinal axis 4 and parallel to the bottom plane of the Bar 15. The views in FIG. 7 are top views, respectively on the bar arrangement with a center position of one horizontal pivot axis 4 parallel to the row of nozzles Area irrigation periodically swiveling sprinkler housing 2nd

In the position shown in Fig. 7 (a) is the Slidable first bar 15 in a middle position Slider 24, 25, one with respect to the lateral Slidability middle longitudinal plane of the slidable Strip with the vertical longitudinal plane through the row of nozzles (Section plane in Fig. 1) and the median plane through the Longitudinal slots 20 of the fixed bar (dashed line 35) coincides. The row of longitudinal slots 20 of the second Bar is only in Fig. 7 (b to d) Dashed line 35 shown. Some nozzle outlets 12 are overlapping by circles in the intersection points 23 Oblique slots 19 and longitudinal slots 20 of the represented two bars. On one below the ledge arrangement in Fig. 7 (a) drawn line 36 are the Positions of the nozzle inlets 10, each vertically below the middle of the longitudinal slots 20 (Fig. 1) through Position lines 37 marked. At the respective ends of the Bar arrangement are the positions 37 of FIG Nozzle inlets 10 through the nozzle axes, dotted lines 38, 39 connected to the nozzle outlets 11. The lines 38, 39 indicate the direction of radiation of each furthest outer edge nozzles of the row of nozzles.

For a middle nozzle 40, the crossing point is in Fig. 7 (a) of slots 19, 20 directly vertically above the nozzle inlet 10 and the nozzle gives a vertical (or in a vertical plane). For the outside The junction point is further out than the nozzle Nozzle inlet so that these nozzles have the outlet outwards is tilted and the nozzles an outwardly tilted jet submit. The nozzles in between are inwards increasingly tilted against the vertical, so that a symmetrical, flat subjects with essentially the same Gives angular steps between adjacent beams. This There is a broadening of the compartments when the strips are parallel in the example in that the distance in the longitudinal direction of the Row of nozzles between adjacent oblique slots 19 movable bar is a few percent larger than that corresponding longitudinal distance between adjacent positions of the Nozzle inlets.

7 (b) is the row of longitudinal slots 20 of the fixed, second bar 16 only by an interrupted Line 35 shown. Compared to the setting in Fig. 7 (a) here is the left slider 24 to the center of the row of nozzles and the left end of the pin guide 26 in the slider sliding bar 15 laterally, that is in the figure "moved up" so that the first, sliding bar is now at an angle to the longitudinal direction 35 of the row of nozzles. The stepless displacement of the left end of the groin has to Consequence that the left edge nozzle 41 with its Nozzle outlet is vertically above the associated nozzle inlet and emits a beam in the vertical direction. The beam direction the edge nozzle 42 on the far right is opposed to this substantially unchanged from the position in Fig. 7 (a). The nozzles in between are one of left to right decreasing dimension compared to the position of Fig. 7 (a) tilted to the right. This last position corresponds the fan image of Fig. 8 (b).

In Fig. 7 (c) is compared to Fig. 7 (b) by linear movement of the right slide 25 towards the middle, the right end of the sliding bar moved "down" and the right outer edge nozzle 42 is now there, as is the one on the left outer edge nozzle 41, a vertically upward Beam off. According to the uniform, collective Adjustment of all nozzles in this embodiment and the sprinkler typical beam alignment are now all rays or nozzle axes parallel. The angular increment between neighboring nozzles will disappear. The last position corresponds to the fan image according to Fig. 8 (a).

Finally, another extreme position is shown in FIG. 7 (d) sliders 24, 25 drawn completely outwards and with respect to FIG. 7 (c) counter-slanting of the sliding bar 15 shown. The corresponding fan pattern with symmetrical full widened flat fan corresponds to the fan image Fig. 8 (e).

The embodiment described with reference to the previous figures with the last adjustment via slide 24, 25 is characterized by an advantageous, obvious correlation the slide movement with the change of the fan edge on the side of the respective slide. this will 8 explains the various settings one by a group of eighteen essentially coplanar Water jets 30 formed, flat fan in Dependence on the position of the two slides 24, 25 shows. In Fig. 8 (a) both sliders are in one extreme inner position and the fan pattern of the jet streams is also an extreme case in the sense that here all jets or nozzle axes are aligned in parallel. Beam alignment with converging beams is true with appropriate design of the device possible in Usually not provided. By moving the right-hand slide 25 in an intermediate position on the outside the right edge of the fan turns to the right tilted. The jet directions or nozzle axes of the entire Nozzle row with the exception of the extreme left edge nozzle 41 become collective or simultaneous, but different Absolute angle values, tilted to the right in such a way that each increases the angle between adjacent beams and preferably a fan with from beam to beam at least approximately the same angular step of, for example 1 ° arises. The total expansion of the subject this then results in accordance with the total number of nozzles the row of nozzles from the sum of the relative tilt angles between the adjacent jets or nozzle axes. The sprinkling density in the sprinkled square increases the position of Fig. 8 (a), while the total area of the irrigated square enlarged to the right and the left margin remains unchanged in its position.

In Fig. 8 (c), the right-hand slider 25 is completely after shifted outside and the right fan edge under enlargement of the above-mentioned angle increment to, for example, 2 ° in its extreme oblique orientation. The left fan edge remains unchanged. In a corresponding way, regardless of the setting of the right compartment edge, by moving the left slide 24 a change the alignment of the left edge of the compartment. At the subject positions of Fig. 8 (d) and (e) are uniform relative angle between the individual beams approximately 4 or 5 °. It can be seen that in the irrigation device the irrigation density, which here is due to the fan angle of the row of nozzles is determined, and the mean exit or emission direction is infinitely variable independently of one another are continuously adjustable or changeable.

An inventive method for variable adjustment of the Sprinkler picture of a square sprinkler as well as one particularly its implementation suitable device are above has been exemplified. A variety not closer The variants described are conceivable. For example alternatively or in addition to the transverse displacement of a Guide body with oblique guide slots also one Height adjustment of the guide body relative to each other be provided, both a parallel height adjustment at several ends, especially at two ends of an adjustable Guide body, as well as one, for example, two Last independent height adjustment is possible. For example, a movable bar can be lowered an existing tilt position towards the nozzle inlets of nozzles change, especially reinforce.

Instead of the elastic nozzles with a fixed nozzle base in the inlet area and bendable duct in the outlet area can also rigid nozzles can be provided, for example individually Tiltable in ball or roller joints in the inlet areas are stored. With only one level swivel movement permissible roller bearing of rigid nozzles can possibly on a longitudinal guide, as in the described embodiment achieved by the longitudinal slots 20 of the fixed bar will be waived. The mechanical means of adjustment the jet directions can be except at the nozzle outlets also, for example, on the rollers of the tiltable storage attack.

The combination of longitudinal slots 20 with oblique slots 19 is by no means mandatory, but very advantageous. As an alternative, for example, a movable one Bar can be provided in which the oblique slots 19th corresponding guide slots for the nozzle outlets across Strive apart in the direction of the fan. When a such bar transversely, especially perpendicular to it If the longitudinal direction is shifted laterally, the fan pattern can of the sprinkler in the form of a particularly symmetrical Subjects with a variable opening width are available. Of course can also the ends of such a bar can be adjusted independently. Especially at an embodiment with fan-shaped divergent The slidable bar can be longitudinally slotted by suitable Training of the adjusting device in addition to the parallel Transverse displacement transverse to the longitudinal direction also a parallel displacement experienced in the longitudinal direction. The cross shift causes a change in the fan opening angle and the angular step size between adjacent beams, while the longitudinal displacement is a lateral tilt of the effect entire fan in the longitudinal direction of the row of nozzles can.

A simple one with only one degree of freedom of movement Embodiment that is only a variation of The opening width can also be increased by a vertical Swiveling, movable axis in the middle of the row of nozzles Bar are created. The individual guide slots do not necessarily have to be straight and the guide body don't have to be flat either. For example the movable bar also in shape instead of a flat shape a tubular jacket or tubular jacket segment and be curved on an outer surface of a roller-shaped sprinkler housing be smoothly rotatable.

The described steeping device with the two sliders 24, 25 is because of the obvious correlation among other things between slide displacement direction and adjustment of the Fan edges advantageous. The sliders can not only like particularly shown in Fig. 4, on the top of the sprinkler attached and guided in longitudinal grooves, it is also possible, for example, to enclose a pipe To provide slide valve, in which the housing tube 2 forms the guide for the slide.

The sliders have steep devices in the longitudinal direction of the sprinkler linearly movable actuators possible, directly or indirectly via a linear-linear coupling a linear transverse displacement of one side of the cause movable guide body. As an alternative it is also possible to provide rotatable actuators that such a linear by means of a rotary-linear coupling Cause displacement of one side of a guide body. For example, instead of a slide, e.g. at the Rotary knob located on the top or on the side of the housing body be provided by a cam arrangement or an eccentric driver pin or the like. a corresponding Movement of the movable bar causes. In the case of Fig. 9 embodiment is a horizontal as an actuator rotatable adjusting wheel 45 is provided, one over his May have circumferentially protruding control lever 46. Eccentric on the adjusting wheel, which can be adjusted in stages a driver pin 47 arranged in an elongated hole 48th engages that in an end extension tab 49 a laterally displaceable, strip-shaped guide body 50 engages. By turning the setting wheel over the The operating lever moves the one that engages in the slot Pin the last of the last across the longitudinal axis of the last.

9 leads to a rotation of the Lever 46 inwards to tilt the right compartment edge outward. An advantageous obvious correlation the direction of the lever shift with the direction of the Achieving a change in the subject is one another embodiment shown in Fig. 10 in the movable Guide bar 55 which has the elongated hole 56 Tab 57 shaped so that the adjusting wheel in a lateral Grips around and the elongated hole on the of the bar opposite side of the axis of the adjusting wheel is arranged. This results in the coupling so that when the right operating lever to the outside the right-hand end the bar is moved "up", creating the right side the fan, similar to Fig. 7 (d) or 8 (a) (b) (c) shown, is also moved outwards.

The invention was explained using the example of a square sprinkler. However, it is with the appropriate design interacting elements, also with circular sprinklers and irrigation devices with differently shaped irrigation areas applicable.

Claims (17)

Method for adjusting the sprinkler picture of a sprinkler, especially a square sprinkler, the Irrigation device with a liquid supply connectable nozzle arrangement with a variety of nozzles whose nozzle axes can change direction, characterized by an adjustment of the nozzle axes such that nozzle axes tilt relative to each other become. A method according to claim 1, characterized in that when adjusting the nozzle axes fan-like, in particular in the manner of a flat fan, pulled apart or be merged. A method according to claim 1 or 2, characterized in that that collectively when adjusting nozzle axes be tilted relative to each other and / or that in the Adjustment of the relative tilt angle between neighboring ones Nozzles at substantially equal angular amounts be changed and / or that when adjusting nozzle axes around different absolute tilt angles be tilted and / or that when adjusting the nozzle axes be continuously tilted. Method according to one of the preceding claims, characterized in that the adjustment Irrigation density is adjusted, preferably regardless of the irrigation density, the location and / or the shape of the irrigation area is changed. Method according to one of the preceding claims, characterized in that at least at the adjustment a nozzle axis is essentially not adjusted while other nozzle axes are relative to this Nozzle axis, and preferably relative to each other, tilted are, preferably the nozzle axis of a nozzle located within a nozzle arrangement or The nozzle group is essentially not adjusted, while nozzle axes from to the edges of the nozzle assembly neighboring nozzles relative to the or the undisplaced Nozzle axes are tilted or being nozzle axes one or more edge nozzles of a nozzle arrangement essentially not to be tilted while other nozzle axes are tilted relative to these. Irrigation device, in particular square sprinklers, with at least one can be connected to a liquid supply Nozzle assembly that has a variety of nozzles with directionally adjustable nozzle axes, and with an adjusting device for adjusting the direction of the nozzle axes, characterized in that the adjusting device Tilting means for tipping Has nozzle axes (8; 38; 39) relative to each other. Irrigation device according to claim 6, characterized in that that the nozzle arrangement (6) a regular Distribution of, preferably single-jet, nozzles (7) has, preferably adjacent nozzles of Nozzle arrangement at substantially equal intervals are arranged to each other and / or that the nozzle arrangement a single, preferably linear, row of nozzles (6) is. Irrigation device according to one of claims 6 or 7, characterized in that a nozzle (7) one to the Liquid supply connectable nozzle inlet (10) and, axially spaced therefrom, one for fluid delivery provided nozzle outlet (12), wherein by the relative arrangement of the nozzle inlet and nozzle outlet the nozzle axis (8) is defined and the adjustment the nozzle axis by relative adjustment of Nozzle inlet and nozzle outlet can be produced, in particular the nozzle inlet (10) is substantially retained and the nozzle outlet (12) transverse to the nozzle axis (8) is arranged movably. Irrigation device according to one of claims 6 to 8, characterized in that the nozzle arrangement (6) at least one coherent, preferably band-shaped, Nozzle body (9) made of elastically flexible Has material on which several, preferably all Nozzles (7) of the nozzle arrangement, preferably in one piece, are arranged. Irrigation device according to one of claims 6 to 9, characterized in that a nozzle (7) preferably one to the inlet side flared Nozzle inlet (10) with inward-facing, axial Has guide webs (11) for low-water flow, and / or that a nozzle (7) between the nozzle inlet (10) and Nozzle outlet (12) a section with itself continuously to the nozzle outlet reducing cross-section preferably in an outlet-side outer section passes essentially cylindrical inner cross-section and / or that a nozzle (7) extends from the nozzle inlet (10) to the nozzle outlet (12) at least in sections has a tapered outer diameter. Irrigation device according to one of claims 6 to 10, characterized in that the tilting means a first guide body (15; 50; 55) with at least one, preferably a plurality of first guide openings (19) and one relative to the first guide body (16) movable second guide body with at least one, preferably a plurality of second Has guide openings (20), the guide body (15; 16; 50; 55) are movable relative to each other and being on top of each other and the guide holes are so overlapping that in an overlap area of a first and one second guide opening a nozzle guide opening (23) is formed. Irrigation device according to claim 11, characterized in that the first guide openings (19) and / or through the second guide openings (20) preferably straight longitudinal slots, in particular with substantially constant width, are formed, the first guide openings (19) at least in sections run obliquely to the second guide openings (20). Irrigation device according to one of claims 11 or 12, characterized in that the second guide body (16) immovably on a housing (2) of the irrigation device is appropriate, especially integral Is part of the housing and that the first guide body (15; 50; 55) movable on the housing stored, in particular slide bearing and / or that the first guide body (15; 50; 55) and / or the second guide body (16) as a straight guide bar is formed and / or that the first guide body (15; 50; 55) relative to the second guide body (10) Can be moved transversely to a row of nozzles of the nozzle arrangement (6) and / or adjustable at an angle to the row of nozzles is. Irrigation device according to one of claims 6 to 13, characterized in that one by the irrigation device Generable irrigation density adjustable is, preferably independently of the irrigation density, the location and / or shape of one by the sprinkler accessible, preferably square, Irrigation area is changeable and / or that a irrigation density that can be generated by the irrigation device, in particular an overall fanning angle of Nozzle axes of a row of nozzles, and an average direction of radiation are independently adjustable. Irrigation device according to one of claims 6 to 14, characterized in that the adjusting device at least one with at least one guide body (15; 50; 55) coupled, preferably manually operable, Actuator (24; 25; 45) for the relative adjustment of the Positions of the first and second guide bodies has, preferably two, in particular independently actuators which can be actuated by one another (24; 25; 45) are provided, which are preferably on opposite Ends of the movable first guide body (15; 50; 55) attack. Irrigation device according to one of claims 6 to 15, characterized in that the adjusting device has at least one rotatable actuator (45), its rotation by means of a rotary-linear coupling (47, 48) a linear displacement of a guide body (50), in particular across one side of a guide bar to a row of nozzles nozzle arrangement (6), wherein preferably the actuator is about an adjusting wheel axis rotatable adjusting wheel (45) with an eccentric Adjustment wheel axis arranged driver (47), which in an elongated hole (48) in the end region of a guide body (50) intervenes. Irrigation device according to one of claims 6 to 16, characterized in that the adjusting device at least one linearly displaceable actuator (24, 25) has that directly or via a linear-linear coupling (26, 28, 27, 29) a linear displacement a guide body (15), in particular one side of a guide body transverse to a row of nozzles Nozzle arrangement, preferably the actuator a movable in the longitudinal direction of a guide body Slider (24, 25) at an angle to the longitudinal direction extending guide slot (26, 27) into which an in End area of a guide body arranged driver (28, 29) engages.

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