Apparatus for dispensing flowable media and a method for operating an apparatus for dispensing flowable media

Abstract

An apparatus for spraying flowable media and in particular plant protection agents onto plants, has at least a first spray unit and a second spray unit wherein each of the spray units has a tubular conduit unit that extends in a predetermined longitudinal direction and is suitable and intended for conducting a flowable plant protection agent, and wherein each of the spray units has at least one spray head that is in flow communication with the conduit unit associated therewith

The spray units are provided in a pivotable manner in relation to a predetermined pivot axis on a carrier, and the apparatus has an adjustment unit that allows both the first spray unit and the second spray unit to be pivoted between a working position and an idle position.

Claims

1. An apparatus for spraying flowable media and in particular plant protection agents onto plants, comprising at least a first spray unit and a second spray unit, wherein each of the the spray units has a tubular conduit unit that extends in a predetermined longitudinal direction and is suitable and intended for conducting a flowable plant protection agent, and wherein each of the spray units has at least one spray head that is in flow communication with the conduit unit associated therewith, wherein the spray units are provided in a pivotable manner in relation to a predetermined pivot axis on a carrier, and the apparatus has an adjustment unit that allows both the first spray unit and the second spray unit to be pivoted between a working position and an idle position, wherein the adjustment unit is movable relative to the carrier, wherein a direction in which the carrier extends, as well as a direction in which the adjustment unit extends, are parallel to each other, and/or the adjustment unit is in communication with the carrier via at least two coupling elements, and in that these coupling elements are provided to be pivotable on the carrier and on the adjustment unit.

2. The apparatus as claimed in claim 1, wherein a pivoting movement of the first spray unit in at least one pivoting direction is not coupled to the pivoting movement of the second spray unit.

3. The apparatus as claimed in claim 1, wherein the pivot axis is perpendicular to the longitudinal direction of the conduit unit.

4. The apparatus as claimed in claim 1, wherein the spray unit can be pivoted about a pivoting angle that is greater than 10, preferably greater than 20, preferably greater than 30 and preferably greater than 40.

5. The apparatus as claimed in claim 1, wherein a distance between the adjustment unit and the carrier can be modified by a movement of the adjustment unit relative to the carrier.

6. The apparatus as claimed in claim 1, wherein a projection is provided on at least one spray unit, which projection contacts the adjustment unit in particular as a function of a position of the adjustment unit.

7. The apparatus as claimed in claim 1, wherein in the working position, there is no mechanical contact between the adjustment unit and the spray unit and/or between the adjustment unit and the projection.

8. The apparatus as claimed in claim 1, wherein the projection is provided on the spray unit is a cantilever.

9. The apparatus as claimed in cam 1, wherein the spray unit has a connection unit in order to connect a supply conduit for supplying the plant protection agent.

10. A method for operating an apparatus for spraying flowable media and in particular plant protection agents onto plants, wherein in a working position, the flowable medium is dispensed onto the plants by at least a first spray unit and a second spray unit, wherein each of the spray units has a tubular conduit unit that extends in a predetermined longitudinal direction and which conducts the flowable medium, and wherein each of the spray units has at east one spray head for dispensing the flowable medium, which is respectively in flow communication with the conduit unit associated therewith, wherein the spray units being pivoted in relation to a predetermined pivot axis for transferring the apparatus from the working position into an idle position, wherein the spray units are pivotally provided on a carrier and wherein a pivoting movement of both the first spray unit and the second spray unit between a working position and the idle position is carded out by means of an adjustment device, wherein the adjustment unit is movable relative to the carrier, and a direction in which the carrier extends and a direction in which the adjustment unit extends are parallel to each other, and/or the adjustment unit is movable relative to the carrier, wherein the adjustment unit is in communication with the carrier via at least two coupling elements, and these coupling elements are provided to be pivotable on the carrier and on the adjustment unit.

Description

[0048] Further advantages and embodiments will become evident from the attached figures, wherein:

[0049] FIG. 1 shows an illustration of an apparatus according to the invention; and

[0050] FIG. 2 shows a detailed illustration of the apparatus shown in FIG. 1.

[0051] FIG. 1 shows an illustration of an apparatus I according to the invention. Reference numeral 6 relates to a carrier that can be mounted for example on an agricultural machine such as a tractor. A plurality of spray units 2, 4 is provided on this carrier 6. These spray units may here be pivoted in a plane that is substantially in the figure plane. Reference numeral 32 identifies a fastening means, by which the pivoting units for pivoting the spray unit 2, 4 are fastened to the carrier. This fastening means may be fixed to the carrier 6, e.g. screwed on.

[0052] Reference numerals 24 and 44 each relate to spray heads that are provided on conduit units 22, 42. These conduit units may here also be made of plastic and have a certain degree of flexibility. It would also be possible for two or even more spray heads to be provided on each conduit unit. In this way, the respective medium may be applied to the plants at different heights.

[0053] Reference numeral 8 identifies an adjustment unit used for pivoting the spray units 2, 4. To this end, the spray units 2, 4 have projections 26, 46 that rest on a top side of the adjustment unit 8. Reference numeral L identifies a longitudinal direction of the spray units or the conduit unit thereof.

[0054] The adjustment unit 8 may be moved in the direction of the double arrow B, wherein B being at the same time the widthwise direction of the carrier and also of the adjustment unit. To this end, coupling elements or webs are provided via joints 16 and 18 between the carrier 6 and the adjustment unit 8. Therefore, a movement of the adjustment unit 8 also leads to a lifting or lowering of this adjustment unit, and in this way, the pivoting operation of the spray units 2, 4 may be initiated.

[0055] FIG. 2 shows an illustration, in which the adjustment unit 8 is in the lowermost position. It can be seen that the coupling element 12 is here also vertically orientated. In this case, the upper edge 8a does not contact the projections 26 and 46. For this reason, the spray units 2, 4 may pivot unhindered without being coupled to each other.

[0056] The cantilever 18 shown in FIG. 1, via which the projections are disposed on the spray units, causes the spray units to be pivoted in a purposeful manner in a direction, as the adjustment unit 8 is lifted, which means in a counter-clockwise direction in FIG. 1.

[0057] The Applicant reserves the right to claim ail of the features disclosed in the application documents as being essential to the invention, insofar as they are novel over the prior art either individually or in combination. It is further pointed out that also features were described in the individual figures, which may be advantageous taken by themselves. A person skilled in the art will immediately recognise that a certain feature described in a figure may be advantageous even without adopting further features from this figure. A person skilled in the art MI further realise that advantages may be achieved also by a combination of several features shown in individual or in different figures.

LIST OF REFERENCE NUMERALS

[0058] 2 Spray units

[0059] 4 Spray units

[0060] 6 Carrier

[0061] 8 Adjustment unit

[0062] 16 Joints

[0063] 18 Joints

[0064] 18 Cantilever

[0065] 22 Conduit units

[0066] 24 Spray heads

[0067] 26 Projection

[0068] 32 Fastening means

[0069] 42 Conduit units

[0070] 44 Spray heads

[0071] 46 Projection

[0072] 8a Upper edge

[0073] B Widthwise direction of the carrier and the adjustment unit

[0074] L Longitudinal direction