AU4235399A

AU4235399A - Agriculture/viticulture sprayer

Info

Publication number: AU4235399A
Application number: AU42353/99A
Authority: AU
Inventors: Bent Baek
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-14
Filing date: 1999-07-30
Publication date: 2000-04-06
Anticipated expiration: 2019-07-30
Also published as: AU719303B2

Description

50547 GEH P/00/011 Regulation 3.2

AUSTRALIA

Patents Act 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT

ORIGINAL

f* Address for Service: COLLISON CO., 117 King William Street, Adelaide, S.A. 5000 invention Title: AGRICULTURENITICULTURE SPRAYER Details of Associated Provisional Applications: PP5866 Dated 14th September 1998 The following statement is a full description of this invention, including the best method of performing it known to me: BENT BAEK Invention Title: AGRICULTUREITICULTURE SPRAYER Details of Associated Provisional Applications: PP5866 Dated 14th September 1998 The following statement is a full description of this invention, including the best method of performing it known to me: This invention relates to improvements in and relating to machines for spraying agricultural chemicals on rows of vineyard and orchard plants, trees and vines.

For a long time spraying agricultural chemicals have been applied by an air blast sprayer to spray away from a trailer carrying an air blast sprayer to spray chemicals toward a vine or tree by using large volume of high pressure air.

Most conventional sprayers can only cover one row at a time and are not suited to sloping ground or terraced land due to the limited control over where the water/chemical spray is targeted, and this is the particular case when spraying vine rows along terraced land.

In my earlier patent No. 690473 there is described a spraying machine which includes a curved frame carrying a plurality of fan spray heads which are directed to the canopy of the tree or vine, to direct the airborne spray material into the canopy in upwardly and downwardly directed directions 15 simultaneously from both sides of the canopy.

It is an object of the invention to provide a spraying machine which is more compact and thus can be manoeuvred in small areas and which also is adaptable to spray canopies of rows which are of different heights.

In the following description the invention is particularly related to the spraying of rows of vines, but it is to be realised that the invention is not to be limited thereto, but can easily be applied to other horticultural and agricultural plantations.

In one form of the invention there is provided a vehicle having mounted thereon a pair of side arms rotatable about a mast on the vehicle, each side arm carrying a pair of curved arms on which are mounted spray heads to spray a respective row for, for example vines, the side arms being rotatable about a mast from a transport position behind the vehicle to an operating position in which the arms extend sideways from the vehicle.

In a preferred form of the invention a spray head may be added to the centre of the curved arms to spray generally downwardly to achieve additional coverage and penetration of the vine canopy.

In a further form of the invention the vertical height of the side arms can be adjusted to provide for vines planted on terraced land.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more fully describe the invention reference will now be made to the accompanying drawings in which:- Figure 1 is a side view of one form of the invention with the arms in the transport position, only the arms on the near side being shown, Figure 2 is a rear view showing the arms in the transport position, Figure 3 shows the arms on one side of the vehicle, Figure 3(a) is a view showing the arms in the spread condition, Figure 4 is a view along the lines of 4-4 of Figure 1 showing the position 10 of the arms in the folded position, Figure 4(a) shows the arms in the opened position,.

Figure 4(b) shows a side view of the upper end of the mast, Figure 5 shows a top view in the transport position, Figure 6 shows a plan view of the machine with the arms in the operating position, Figure 7 shows a rear view of the arms in the operating position, Figure 7(a) shows a rear view of the invention when operating on terraced or sloping land, Figure 8 shows the invention attached to a tractor or the like to spray one row of vines, Figure 8(a) shows a rear view of the embodiment of Figure 8, Figure 9 shows a plan view of the invention to simultaneously spray three rows of vines, Figure 9(a) is a rear view thereof, and Figure 10 is a view of a self propelled vehicle to straddle the centre row and also spray the adjacent rows on each side thereof.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring firstly to Figures 1 to 7(a) of the drawings, there is shown a sprayer including a tank 1 mounted on a trailer 2 having wheels 3 and a drawbar 4. A pump 5 supplies spray material from the tank 1 to the fan spray heads 6 and 7 by spray lines (not shown). The fan spray heads include fans driven by electric or hydraulic motors supplied with electrical or hydraulic power from an alternator or hydraulic pump 8 driven by PTO shaft 9 through a control system To the trailer are mounted two masts 11 and 12 on which are rotatably mounted arms 13 and 14, the arm 14 being longer than the arm 13. To the end of arm 13 there is suspended by a hinge point 15 a pair of curved arms 16 :.'":which carry the fan spray heads 7, and to the end of arm 14 there is suspended by hinge point 17 a pair of curved arms 18 carrying the fan spray heads 6.

l go The arms 13 and 14 carrying the curved arms can be moved from a transport position as shown in Figures 2 and 5 to an operating position as shown in Figures 6 and 7 by the linkage as shown in Figures 4 and To arm 14 which is rotatable about mast 12 there is attached a bracket 19 and to the arm 13 there is attached a bracket 20 and which are interconnected by a link 21, to the bracket 19 there is attached an hydraulic cylinder 22, the other end of the cylinder being pivoted to a frame portion 23 interconnecting the two masts 11 and 12. Thus it will be seen that by actuation of the cylinder 22, the arms will move in opposite rotational directions due to the interconnecting link 21 moving the arms from the transport position to the operating position and vice versa.

A mechanism is also provided to raise and lower each arm 13 and 14 to vertically adjust the curved arms and hence the fan spray units depending upon the canopy of the vine and also whether the vines are terraced as shown in Figure An adjustable link, such as hydraulic cylinders 24 and 25 are pivoted to the upper end of the masts 11 and 12 and connected to the respective arms 13 and 14 whereby the height of each of the curved arms can be individually adjusted.

Figure 4(b) shows a detail of the upper end of a mast 11, 12 the arms 13, 14 and hydraulic cylinders 24, 25 being attached to a rotatable sleeve 29 fitted to each of the masts 11 and 12.

Furthermore by referring to Figure 3, where only one of the curved arms is shown, e.g. arms 18, the spacing between the arms can be adjusted to accommodate for various widths of canopy of the vines. Each of the arms 18 are pivoted to a bracket 26 being attached to a sleeve 28a such that, upon collision with an object, the arms 18 can swivel upwardly and rearwardly, a hydraulic cylinder 27 acting between brackets 28 on the respective arms thus controlling the spacing between the curved arms 18, Figure 3(a) showing the arms 18 in a spread condition.

Each of the arms 16 and 18 are connected by the hinge points 15 and 17 to the respective arms 13 and 14, which hinge points include a hinge about a substantially vertical axis. This is necessary to provide a means whereby the .i 15 arms are maintained in a position normal to the vine row being sprayed. If this were not so the angle of the spray heads relative to the vine would vary depending on the distance of the curved arms from the respective mast, varies depending upon the distance of the vine from the vehicle. Thus the arms 16 and 18 are provided with adjuster horns 30 and 31, and to these are attached cables 32 and 33 anchored at their other ends to the frame of the masts. On the opposite side of the respective horns tension springs 34 and 35 provide tension between the respective horns 30 and 31 and the respective arms 13 and 14. Thus it will be seen that as the arms 13 and 14 rotate about the respective masts, the cables and springs will move the arms so that the spray 25 heads are generally normal to the canopy of the vine.

As noted above the arms 13 and 14 are of differing lengths, and this is provided that when the arms are rotated to the transport position the curved arms and spray heads are positioned one behind the other as shown in Figures 1,2, 5 and 6.

The invention above has been described as being attached to a trailed vehicle, and Figure 8 and 8(a) show the sprayer mounted on the lift arms of a farm tractor 36. While the drawings show the curved arms 37 being attached to one side of the tractor, it is to be realised that a further set of curved arms can be fitted to spray another vine row on the other side of the tractor.

A further embodiment is shown in Figures 9 and 9(a) in which the trailer 38 is constructed to straddle one row of vines and has outrigger arms 39 to spray the adjacent rows, thus spraying three rows of vines at the one time. The trailer has an offset drawbar 40 so that it is drawn by a tractor 41 passing between two rows.

Similarly Figure 10 shows a self propelled vehicle 42 which straddles one row of vines and thus sprays that row and also the adjacent rows by a pair of curved arms 43, 44 and 45 respectively.

It will be seen that the invention provides a sprayer while particularly directed to spraying vine rows is not limited thereto. In many vineyards there is a minimum headland or distance between the end of the row of vines and an obstruction such as a fence. However with the sprayer of the present invention when the end of the row is reached, the arms are folded to the transport position thus permitting the sprayer to be manoeuvred into position 15 for the next pass along the row of vines.

The invention provides a mechanism where by the arms and curved arms can be adjusted for canopy width, canopy height and also to adjust the spray heads to accommodate for sloping ground or even terraced ground.

Claims

1. A spraying machine adapted to spray rows of vines or trees, said machine including at least one pair of spray arms each carrying a plurality of fan spray heads to direct spray material into a canopy to be sprayed, said pair of arms being mounted on the end of a radial arm rotatable about a mast on the machine, means to rotate the radial arm, first adjustable link means between the mast and the radial arms to raise and lower the pair of arms, and second adjustable link means to vary the spacing between the spray arms of each pair, wherein the rotatable arm is positioned between an operating position and a transport position behind the machine.

2. A spraying machine as defined in claim 1 wherein the machine is a trailed vehicle, there being two pairs of spray arms, one pair on each side of the vehicle, and wherein one radial arm is of greater length than the other so that when the spray arms are rotated into the transport position one is 15 positioned rearwardly of the other for transport and ease of manoeuvring in restricted areas.

3. A spraying machine as defined in claim 1 or claim 2 wherein each pair of spray arms are mounted on a pivot at the end of the radial arm, whereby the spray arms are maintained to position the fan spray heads generally normal to 20 the canopy as the radial arm rotates about its mast.

4. A spraying machine as defined in claim 3 wherein the spray arms adjacent the pivot are connected at one side to a tension member attached to a fixture on the machine and a spring on the other side to maintain the tension in the tension member, the tension member thus maintaining the orientation of the spray arms relative to the canopy.

A spraying machine being a trailed vehicle having two pairs of spray arms to spray a row on each side of the trailed vehicle.

6. A spraying machine as defined in any one of claims 1 to 4 wherein the machine is a trailed vehicle straddling one row of vines, the trailed vehicle carrying three pairs of spray arms, one pair spraying the canopy being straddled and the other pairs spraying the canopies on either side of the vehicle.

7. A spraying machine as defined in any one of claims 1 to 4 wherein the machine is a self propelled machine straddling a canopy row, and carrying either one, two or three pairs of spray arms. Dated this 30th day of July 1999 BENT BAEK By his Patent Attorneys COLLISON CO. *o a a a ft f ft 9