EP2544520A1 - Dispositif de fenaison - Google Patents
Dispositif de fenaisonInfo
- Publication number
- EP2544520A1 EP2544520A1 EP11708340A EP11708340A EP2544520A1 EP 2544520 A1 EP2544520 A1 EP 2544520A1 EP 11708340 A EP11708340 A EP 11708340A EP 11708340 A EP11708340 A EP 11708340A EP 2544520 A1 EP2544520 A1 EP 2544520A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- centre line
- arm
- main beam
- frame
- tools
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D78/00—Haymakers with tines moving with respect to the machine
- A01D78/08—Haymakers with tines moving with respect to the machine with tine-carrying rotary heads or wheels
- A01D78/10—Haymakers with tines moving with respect to the machine with tine-carrying rotary heads or wheels the tines rotating about a substantially vertical axis
- A01D78/1007—Arrangements to facilitate transportation specially adapted therefor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D80/00—Parts or details of, or accessories for, haymakers
- A01D80/005—Carriers for the transport of haymakers
Definitions
- the invention relates to a haymaking device provided with at least one tool, such as a mower, a tedder or a rake, respectively.
- the invention relates in particular to a device for displacing mown grass.
- the invention relates in particular to a crop displacing device provided with pins, in particular a rake device.
- Such devices in particular rake devices, are known in a number of basic embodiments.
- the rake device comprises a frame having a main beam which extends in longitudinal direction.
- a number of pivot arms are mounted on the main beam, which pivot arms each carry a circular rake and are pivotable about a horizontal centre line between an operative position and a folded up transport position in which the device is moved between the storage at a farm and a mowing field.
- the device comprises a frame having a main beam and two side arms extending obliquely forwardly therefrom, which side arms carry one or more circular rakes.
- the circular rakes are also capable of being folded up from an operative position to a transport position. In the transport position of the device, the side arms extend substantially along the main beam.
- Haymaking devices may have a considerable length, in particular if they carry more than two circular rakes. For transport of the device from the factory to the dealer or buyer, one standard loading space of a trailer is usually required. The full transport costs will be made on behalf of one haymaking machine.
- the invention provides a device for displacing mown crop, comprising a frame having a main beam extending in a longitudinal direction, which main beam defines a longitudinal centre line and comprises a front end which is provided with hitching means for hitching to a tractor, and two side arms located on both sides of the main beam, wherein each side arm carries a first tool, such as a rake, having a rotor which is preferably driven in a rotating manner about a first rotor centre line, wherein an inner end of each side arm is movably connected to the main beam and is movable between a transport position, in which it extends substantially along the main beam, the inner end being, at least near the front end, at a first angle to the main beam, and an operative position, in which the side arm extends sidewardly from the main beam at a second angle, larger than the first angle, wherein the first tools are each connected, by means of a respective first pivot arm, in the region
- the outer end parts preferably extend substantially parallel to the longitudinal centre line.
- the first pivot arm connection in the operative position of the haymaking device, is located at a larger distance from the main beam than the first rotor centre line of the first tool. This is in particular advantageous if the first tools are provided with displacing tines, at least a number of which are, in the transport position, oriented inwardly, towards the longitudinal centre line.
- the first tools can, in the transport position, be located above the intermediate space.
- the outer end parts can form first satellite arms of a respective satellite frame which, in the region of a rotational connection about a substantially vertical centre line, is rotatably connected to the side arm part whose inner end is movably connected to the main beam.
- Each satellite frame can in this case be provided with a, preferably at least partially detachable, aligning rod which forms, together with the main beam, the side arm and the satellite frame, a parallelogram mechanism.
- each side arm also carries a second tool, such as a rake, having a rotor which is driven in a rotating manner about a second rotor centre line
- the second tools are each, by means of a second pivot arm, connected to the respective side arm and are, by means thereof, pivotable between an operative position, in which the second rotor centre line is substantially vertical, and a transport position, in which the rotor centre line is substantially horizontal, wherein the second pivot arm connections are located in front of the first pivot arm connections and wherein the second tools are provided with displacing tines, at least a number of which are, in the transport position, oriented outwardly, away from the longitudinal centre line.
- the opposite directions of the displacing tines can be favourable to the nesting of devices stored at the farm or at the dealer's.
- first and second pivot arms are both mounted on the satellite frame.
- the second pivot arm connection can then be mounted on a second satellite arm oriented in the direction of travel, wherein the first satellite arm is located at a larger distance from the main beam than the second satellite arm and wherein the first and second satellite arms project in opposite directions.
- the first satellite arms can project rearwardly with respect to the main beam in order to increase said intermediate space.
- the satellite frame is preferably located at a height above the main beam, which facilitates the folding in to a narrow transport position.
- the invention provides a device for displacing mown crop, comprising a frame having a primary frame part and a front end which is provided with means for hitching to a tractor and comprises four tools, in particular circular rakes, wherein the frame has a longitudinal centre line which is substantially parallel to the direction of travel, wherein two tools are located on both sides of the longitudinal centre line, which tools are, in operative position, arranged behind each other in a manner in which the front one of each pair is outwardly staggered with respect to the rear one of that pair, wherein the rear tools are each mounted on a respective rear, first pivot arm which is mounted, by means of a first pivot connection, on or near the free end of a first frame arm which extends per se freely rearwardly in a floating manner, substantially parallel to the longitudinal centre line, and is located during use at an intermediate distance from the longitudinal centre line, when viewed in a direction transverse thereto, wherein the front tools are each mounted on a respective front, second pivot arm which, by means of
- first frame arms leave between them a space which can be used for other constructions, such as the front end of an identical second device according to the invention.
- the first pivot centre lines are located at a distance from the longitudinal centre line, which distance is larger than that for the rear tools and/or wherein the second pivot centre lines are located at a distance from the longitudinal centre line, which distance is smaller than that for the front tools.
- the primary frame part and the secondary frame parts can be interconnected by means of side arms whose ends are rotatably connected about substantially vertical centre lines to the primary frame part and the secondary frame parts, respectively.
- Each secondary frame part of the device can be provided with an aligning rod which forms part of the respective parallelogram mechanism and is at least partially detachable.
- the intermediate space after the rake arms of the first tools have been removed in order to bring the device into a freight position, can accommodate the front end of a second, identical device including the inner ends of the two side arms thereof.
- the first rotor centre lines in a horizontal plane can make an outwardly opening angle with the forward direction of the longitudinal centre line, which angle is smaller than 90 degrees, so that nesting is promoted.
- the second rotor centre lines in the horizontal plane are at least substantially parallel to the first rotor centre lines.
- the invention provides an assembly comprising a loading space and, accommodated therein, a first and a second device according to the invention, wherein the two devices are arranged behind each other and the front end of the second device extends at least partially into the intermediate space of the first device.
- the first and second devices are then preferably located in the freight position described in the preceding paragraph, in particular also without a support wheel.
- Figure 1 shows an oblique front view of an exemplary embodiment of a haymaking device according to the invention, designed as a rake device;
- Figures 2A-D show an enlarged view of a left half, an enlarged view of a right half, an enlarged view of a central part and a detail of a part of the device of Figure 1 , respectively;
- Figures 3A-3D show the operative position of Figure 1 , a narrower operative position and a transport position of the device of Figure 1 , a top view and an oblique top view of the device of Figure 1 , respectively, during the switching from an operative position to the transport position;
- Figure 4 shows a side view of the device of Figure 1 in a transport position behind a tractor
- Figures 5A and 5B show a top view and a side view, respectively, of the device of Figure 1 in a freight position
- Figures 6A and 6B show a top view and a side view, respectively, of a loading space with two devices in the freight position of Figures 5A and 5B.
- Figures 1 and 2A-C show a circular rake device 1 with direction of travel W, comprising a main beam 2 which defines a longitudinal centre line S of the device 1 and a front end of which is provided with a hitch 3 for hitching to a non-shown tractor.
- the hitch 3 provides three degrees of rotation ( ⁇ , ⁇ , ⁇ ).
- On the main beam 2 there is provided a slide element 5 which is slidable over/along the main beam 2, parallel to the longitudinal centre line S, see arrows A.
- Two side arms 4a, b extend on both sides of the main beam 2, from the slide element 5 at equal angles alpha (a) to the longitudinal centre line S.
- the outer ends of the side arms 4a, b are provided with subframes or secondary frame parts, hereinafter to be . called satellite frames 6a, b.
- the satellite frames 6a, b are rotatable there about substantially vertical hinge centre lines with respect to the side arms 4a, b.
- the satellite frames 6a, b each carry two circular rakes 7a, 8a and 7b, 8b with substantially vertical rotational centre lines R1 ,3,2,4, respectively, and are supported by frame support wheels 9a which are located in the shadow of circular rakes 7a, b.
- the two satellite frames 6a, b make the device 1 resemble to some extent to a catamaran.
- the side arms 4a, b are further connected to the main beam 2 (see also Figures 2A-C) by means of holding rods 10a, b (see also Figures 2A-C), the outer ends of said holding rods 10a, b being hingeably connected to brackets 1 1 a, b which are mounted on the side arms 4a, b.
- the inner ends of the holding rods 10a, b are hingeably connected, in the region of hinges 13a,b, to a bracket 20 which is statically mounted on the main beam 2.
- the inner ends of the side arms 4a, b are hingeably mounted to the slide element 5 in the region of hinges 14a, b.
- the holding rods 10a, b and the part (here approximately 1/3) of the side arms 4a, b between the hinges 12a,b and 14a,b form, together with a part of the main beam 2 that is adjustable in length by means of the slide element 5, triangles which are transformable in shape.
- Aligning rods 16a,b extend along the front side of the side arms 4a, b, partially shielded by hoods 17a,b, towards the hub holders 19a, b for the wheels 9a, b.
- the hub holders 19a,b are hingeably connected to both the outer ends of the side arms 4a, b (by hinge pin 81 a, b, see Figure 2D) and to the outer ends of the aligning rods 16a, b (by hinge pin 82a, b, see Figure 2D), in such a manner that a parallelogram mechanism active in a horizontal plane is formed, in which the hub holder and the slide element form the short sides.
- the aligning rod 16a,b is slidably connected indirectly, by means of the slide element 5, to the main beam 2, as well as the side arm 4a, b.
- the satellite frames 6a, b form a rotationally fixed unit with the hub holders 19a,b (rigidly mounted on upper plate 83a, b - Figure 2D - of hub holders 19a,b), they will maintain their orientation with respect to the longitudinal centre line S in the case of deformation of the parallelogram mechanisms.
- the satellite frames 6a, b are located above the upper surface of the side arms 4a, b so that the relative rotation of the side arms 4a, b with respect to the satellite frames 6a, b is not impeded.
- the satellite frames 6a, b each comprise a forwardly oriented satellite arm 21 a, b and a rearwardly oriented satellite arm 22a, b, which carry the circular rakes 7a, b and 8a, b, respectively, when these are not supported by wheel sets 31 a, b and 32a, b, known per se, which carry the circular rakes in the normal operative position of the device 1.
- the satellite arms 21 a, b and 22a, b extend parallel to the longitudinal centre line S and project in a floating manner forwardly and rearwardly, respectively, in the manner of a projecting beam.
- Outwardly oriented pivot arms 23a, b are mounted to the front ends of the satellite arms 21 a, b in a manner in which they are pivotable in a vertical plane about pivot centre lines C1 ,2 between an operative position and one or more raised positions, in particular an upwardly pivoted transport position. They each comprise a telescopic arm 33a, b with retractable/extendable arm parts 35a, b and cylinders 37a, b with piston rods 39a, b whose ends are mounted to the arm parts 35a, b.
- the arm parts 35a, b carry rotors 25a, b on which rake arms 27a, b with rake pins 29a, b are removably mounted in a manner known per se.
- the rotors 25a, b In the operative position, the rotors 25a, b have substantially vertical rotor centre lines R1 ,2.
- cylinders 41 a, b are provided, whose piston rods 43a, b engage the telescopic arms 33a, b.
- Inwardly oriented pivot arms 24a, b are mounted to the rear ends of the arms 22a, b in a manner in which they are pivotable in a vertical plane about pivot centre lines C3,4 between an operative position and one or more raised positions, in particular an upwardly pivoted transport position. They each comprise a telescopic arm 34a, b with retractable/extendable arm parts 36a, b and cylinders 38a, b with piston rods 40a, b whose ends are mounted to the arm parts 36a, b.
- the arm parts 36a, b carry rotors 26a, b on which rake arms 28a, b with rake pins 30a, b are removably mounted in a manner known per se.
- the rotors 26a, b In the operative position, the rotors 26a, b have substantially vertical rotor centre lines R3,4.
- cylinders 42a, b are provided, whose piston rods 44a, b engage the telescopic arms 34a, b.
- the pivot arms 23a, b and 24a, b may be composed of identical components, so that a high degree of modularity is achieved.
- the distance from the satellite arms 21a, b to the longitudinal centre line S is smaller than the distance from the satellite arms 22a, b to the longitudinal centre line S, and the same applies to the location of the pivot centre lines C1 ,2 with respect to the pivot centre lines C3,4, see also Figure 3A.
- the rotor centre lines R1 ,2 are located at a distance from the longitudinal centre line S, which distance is larger than that for the pivot centre lines C1 ,2 in the region of the pivot connection to the satellite arms 21 a, b.
- the rotor centre lines R3,4 are located at a distance from the longitudinal centre line S, which distance is smaller than that for the pivot centre lines C3,4 in the region of the pivot connection to the satellite arms 22a, b.
- a central gearbox 50 which is movably supported by the main beam 2, in a vertical plane which contains the longitudinal centre line S.
- the central gearbox 50 forms a double right-angled transmission having exits 58a, b which are in line with each other and have an opposite transverse orientation.
- the entrance 58c of the central gearbox 50 is operatively coupled, by means of a cardan coupling, to a main drive shaft 51 which is telescopic and whose front end can be operatively coupled, by means of a cardan coupling and an intermediate shaft 51 a in a bearing mounted on the front end of the main beam 2, to a power take-off shaft of a tractor.
- the exits 58a, b are operatively coupled, by means of cardan couplings, to telescopic secondary drive shafts 52a, b whose outer ends are operatively coupled, by means of cardan couplings, to second corner gearboxes 53a, b.
- the secondary drive shafts 52a, b are continued, by short drive shafts 54c,d, to third corner gearboxes 55c,d.
- the second and third gearboxes 53a,b and 55a, b each comprise exits which extend obliquely forwardly and outwardly, and obliquely rearwardly and inwardly, respectively.
- Telescopic rotor drive shafts 56a, b and 57a, b are operatively coupled, by means of cardan couplings, to said exits, for the drive of the rotors 25a, b and 26a, b of the circular rakes 7a, b and 8a, b.
- the central gearbox 50 is mounted on a slide 67 which is slidable in longitudinal direction (direction E) on rails 66 mounted on the main beam, the front ends of said rails being interconnected by means of a transverse rod 62 which forms a stop for the slide 67.
- the front side of the slide 67 is detachably connected, by means of a hook 63 ( Figure 3B), to a transverse section 61 mounted to the rear ends of two rigid pulling/pushing rods 60 whose front ends are mounted to the slide element 5 and have a substantially constant orientation.
- the hook 63 forms an integral whole with a catch 64 and is tiltable therewith in a vertical plane which contains the longitudinal centre line S. Below the hook 63, the slide 67 is provided with a forwardly oriented stop surface 91 .
- a cylinder 70 is mounted, above the main beam 2, to said main beam, the piston rod 71 of said cylinder being mounted to the slide element 5.
- the working width of the device 1 can be set by having the side arms 4a, b project sidewardly to a greater or lesser extent, by changing the angle alpha (a) between the side arms 4a, b and the main beam 2.
- the working width can be set further (more precisely) by the cylinders 37a, b and 38a, b, by means of which the relative mutual position of the rake wheels 7a, 8a and 7b, 8b and their rotor centre lines in transverse direction can also be set.
- the aforementioned cardan couplings can assume the desired angular position.
- the angle alpha (a) is maximal and the holding rods 10a, b are transverse to the main beam 2 and the side arms 4a, b are at a rearwardly opening angle alpha (a) of approximately 65 degrees to the longitudinal centre line S.
- the support wheels 9a, b maintain their orientation in the direction of travel and the satellite frames 6a, b also maintain their orientation.
- the pivot arms 23a, b and 24a, b are operated in the then assumed operative position, in order to pivot the circular rakes 7a, b and 8a, b upwardly.
- the piston rod 71 is then extended and, via the position of Figure 3C, the slide element 5 is forced to the front end of the main beam 2, just behind the hitch 3.
- the holding rods 10a, b then - in the transport position of Figure 3D - extend forwardly along the main beam 2.
- the side arms 4a, b now make a small angle of approximately 7 degrees with the longitudinal centre line S.
- the sole support points of the device 1 are the frame support wheels 9a, b and the hitch 3 to the tractor 100.
- Figure 3D shows that, in the depicted transport position, the rake tines 29a, b of the circular rakes 7a, b are faced outwardly and the rake tines 30a, b of the circular rakes 8a, b are faced inwardly.
- the largest width of the device is defined by the frame support wheels 9a, b.
- the circular rakes 7a, b whose tines 29a, b extend outwardly, are, as it were, screened by the support wheels 9a, b and the rear wheels of the tractor.
- the circular rakes 7a, b leave between them sufficient space for inter alia the main beam 2 and the side arms 4a, b.
- the slide 67 When adjusting the device 1 to a narrower operative position, the slide 67, and consequently the central gearbox 50, is taken along by the slide element 5 via the rods 61.
- the main drive shaft 51 is then shortened in a telescopic manner.
- the slide 67 does not follow the slide element 5 over the entire route.
- the length of the rails 66 is limited, also with a view to the space available in the transport position (see Figures 3D and 4).
- the catch 64 at the arrival of the slide 67 at the end of the rails 66, the catch 64 abuts against the transverse rod 62, as a result of which the hook 63 is lifted. This means that the transverse section 61 is free from the hook 63 and the connection between the slide element 5 and the slide 67 is disengaged.
- the slide 67 remains at that position, while the slide element 5 can move further forwardly.
- the device 1 can be brought into a freight position, depicted in Figures 5A and 5B.
- the connection within the parallelogram mechanisms is disengaged and the orientation of the satellite frames 6a, b can differ from that of the longitudinal centre line S, in such a manner that the rear ends of the arms 22a, b can be brought closer to each other and, as a result thereof, also the distance between the outer surfaces of the satellite frames 6a, b, in this case the points 6a' and 6b', can be smaller.
- the width of the device 1 in the freight position is defined by the distance between the aforementioned points 6a' and 6b'.
- the frame arms 27a, b and 28a, b with rake tines are removed from the circular rakes 7a, b and 8a, b.
- the rake arms and frame support wheels when accommodated in a box, can be disposed between the front rotors and the rear rotors, see the schematic rectangle in Figure 5B.
- the height of the device 1 can be limited further by removing a part of the rake arm holders 92, or all of them, so that the device 1 can be accommodated in a loading space with a closed upper side.
- the intermediate space 200 left free between the arms 22a and 22b, which forms a sort of bay, makes it possible to accommodate the front end of an identical, second device 1 b, as shown in Figures 6A and 6B.
- the front end of the rear device 1 b extends, with the hitch 3, the slide element 5, a part of the side arms 4a, b, the connecting rods 60 and a front part of the holding rods 10a, b into the bay 200.
- the rotors of the rake wheels 7a, b of the rear device 1 b can extend partially forwardly along the rotors of the rake wheels 8a, b of the front device 1 a, enabling a considerable overlap in longitudinal direction.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Agricultural Machines (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1037785A NL1037785C2 (nl) | 2010-03-08 | 2010-03-08 | Hooibouwinrichting. |
PCT/NL2011/000013 WO2011112077A1 (fr) | 2010-03-08 | 2011-03-02 | Dispositif de fenaison |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2544520A1 true EP2544520A1 (fr) | 2013-01-16 |
Family
ID=43013257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11708340A Withdrawn EP2544520A1 (fr) | 2010-03-08 | 2011-03-02 | Dispositif de fenaison |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2544520A1 (fr) |
NL (1) | NL1037785C2 (fr) |
WO (1) | WO2011112077A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3008576B1 (fr) * | 2013-07-17 | 2016-02-05 | Kuhn Sa | Machine de recolte de fourrage perfectionnee |
GB201811406D0 (en) | 2018-07-12 | 2018-08-29 | Agco Feucht Gmbh | Towed agricultural implement |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1011989C2 (nl) | 1999-03-09 | 2000-09-12 | Maasland Nv | Hooibouwmachine. |
DE19952555C2 (de) | 1999-11-01 | 2003-08-07 | Krone Bernhard Gmbh Maschf | Heuwerbungsmaschine |
DE10327915C5 (de) | 2003-06-20 | 2012-04-05 | Maschinenfabrik Bernard Krone Gmbh | Heuwerbungsmaschine |
DE20311102U1 (de) * | 2003-07-19 | 2003-09-18 | Niemeyer Agrartechnik GmbH, 48477 Hörstel | Heuwerbungsmaschine, insbesondere Kreiselschwader |
DE102004051678A1 (de) * | 2003-10-24 | 2005-06-02 | Claas Saulgau Gmbh | Kreiselschwader |
ATE413093T1 (de) * | 2006-03-28 | 2008-11-15 | Claas Saulgau Gmbh | Kreiselschwader |
DE102007035870A1 (de) * | 2007-07-31 | 2009-02-05 | Maschinenfabrik Bernard Krone Gmbh | Heuwerbungsmaschine |
-
2010
- 2010-03-08 NL NL1037785A patent/NL1037785C2/nl not_active IP Right Cessation
-
2011
- 2011-03-02 WO PCT/NL2011/000013 patent/WO2011112077A1/fr active Application Filing
- 2011-03-02 EP EP11708340A patent/EP2544520A1/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2011112077A1 * |
Also Published As
Publication number | Publication date |
---|---|
NL1037785C2 (nl) | 2011-09-09 |
WO2011112077A1 (fr) | 2011-09-15 |
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