WO2016024860A1 - Faucheuse - Google Patents
Faucheuse Download PDFInfo
- Publication number
- WO2016024860A1 WO2016024860A1 PCT/NL2015/050572 NL2015050572W WO2016024860A1 WO 2016024860 A1 WO2016024860 A1 WO 2016024860A1 NL 2015050572 W NL2015050572 W NL 2015050572W WO 2016024860 A1 WO2016024860 A1 WO 2016024860A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mowing
- rotation
- support device
- mowing machine
- section
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
- A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
- A01D34/664—Disc cutter bars
Definitions
- the present invention relates to a mowing machine, in particular a mowing machine to be mounted on or towed by a tractor or such.
- EP 0 260 750 discloses a mowing machine comprising a mowing section having a plurality of mower members each rotatable about an upright axis of rotation.
- the mowing section is connected to a frame with which the mowing machine may be mounted on a tractor or such.
- the mowing machine further comprises a number of shoes by means of which the mowing machine, during operation, rests on a ground surface with at least part of its weight.
- part of its weight may be carried by the frame and part of its weight may be carried by the support device, whereby the direct support of the support device on the ground surface is used to constantly maintain a predetermined mowing level of the mowing machine.
- a drawback of this mowing machine is that it is less suitable for following irregularities in the ground surface, for instance in hilly terrains, in particular irregularities in the forward driving direction.
- a mowing machine comprising:
- a mowing section comprising a plurality of mower members each rotatable about an upwardly directed axis of rotation, and provided with at least one mowing blade, the mowing blades of the mower members defining a mowing plane which extends substantially perpendicular to the axes of rotation, and
- a support device by means of which the mowing machine, during operation, rests on a ground surface with at least part of its weight, wherein the mowing section and the support device, in a predetermined angular position with respect to each other, together as a unit are pivotally connected to the frame about a common axis of rotation which is substantially perpendicular to an intended forward direction of movement of the mowing machine,
- the mowing section and the support device are mutually fixed in the predetermined angular position with respect to each other.
- the mowing section and the support device form an assembly.
- the angular position of the assembly consisting of the mowing section and the support device with respect to the frame is adapted automatically by rotation of the assembly consisting of the mowing section and the support device about the common axis of rotation.
- the mowing section and the support device can be configured to freely rotate, over at least a predetermined angle, with respect to the common axis of rotation to adapt the rotational position of the mowing section and the support device to the angle of the ground surface.
- the mowing section By arranging the common axis of rotation below the mowing blades and in front of the mass center of the mowing section, the mowing section will more easily follow any irregularities in the ground surface, especially the mowing blades are prevented from getting stuck in the ground when moving up a hill.
- CH510975 discloses a mower-conditioner comprising a frame having a drawbar which can be coupled to a tractor.
- a mowing section comprises a plurality of mower discs which can be driven in rotation about vertical axes. The mower discs are mounted on gear boxes which slide over the ground surface.
- a skid shoe is arranged on one lateral end of the mowing section.
- the mowing section is pivotally connected to the frame by means of pivot arms extending rearwardly. The pivot axis of the pivot arms is situated behind the mowing section, as seen in the direction of travel, and also at a height above the mowing section.
- the mowing section is automatically tilted backwards when the mowing machine is moved up a hill.
- the common axis of rotation as seen in the intended forward direction of movement of the mowing machine, can be arranged in front of the axes of rotation of the plurality of mower members.
- the common axis of rotation is arranged in front of the axes of rotation of the mower members, the common axis of rotation is also arranged in front of the mass center of the mowing section.
- the mower blades can easily follow irregularities in the ground when the mowing machine is moved uphill.
- the support device as seen in the intended forward direction of movement of the mowing machine, is delimited by a front edge, and wherein the common axis of rotation, as seen in the intended forward direction of movement of the mowing machine, is arranged between the front edge and the axes of rotation.
- the support device extends, as seen in the intended forward direction of movement of the mowing machine, up to or beyond the circular path of the mowing blades.
- the support device comprises a skid plate having a downwardly facing slide surface configured to slide over the ground surface.
- a skid plate having a slide surface is advantageous, because it has relatively little resistance for sliding over the ground surface. Furthermore, the skid plate itself does not comprise any moving parts, which improves reliability and can be produced relatively easily.
- the slide surface is preferably an elongate slide surface having its longitudinal axis aligned with the intended forward direction of movement.
- the support device comprises a first skid plate extending at a first lateral end of the frame and a second skid plate extending at a second lateral end of the frame opposite to the first lateral end.
- the first skid plate is arranged at a first lateral end of the mowing section
- the second skid plate is arranged at a second lateral end of the mowing section remote from the first lateral end. It is advantageous to arrange skid plates at opposite ends of the mowing section such that the mowing section is supported at both lateral ends.
- the provision of skid plates at the opposite lateral ends may also provide protection of the mowing members at the sides of the mowing section. Additional skid plates can be arranged between the first and second skid plates to provide further support for the mowing section.
- the mowing section and the support device are pivotable about the common axis of rotation with respect to each other for adjusting the predetermined angular position of the mowing section and the support device with respect to each other.
- the mowing section and the support device are fixed with respect to each other, i.e. they are configured to follow irregularities in the ground surface by rotation about the common axis of rotation without a change in the angular position between the mowing section and the support device.
- the cutting height can be maintained at a constant level.
- the mowing section and the support device can be rotated with respect to each other about the common axis of rotation. After the desired cutting height has been set, the mowing section and the support device are mutually fixed for operation on the field.
- the mowing machine comprises an angle adjustment device to adjust the angular position of the mowing section and the support device with respect to each other in order to adjust a cutting height of the mowing section.
- the angle adjustment device may comprise a locking device for locking the mowing section and the support device at a desired angular position with respect to each other.
- the locking device is preferably suitable to lock the mowing section and the support device at different angles with respect to each other.
- the locking device may also be adapted to limit the angular range of movement of the support device with respect to the mowing section.
- the angle adjustment device comprises an adjustment screw arranged between the mowing section and the support device at a distance from the common axis of rotation.
- An adjustment screw can be used to adjust the distance between the mowing section and the support device at a distance from the common axis of rotation. By adjusting this distance the angular position of the mowing section with respect to the support device can be altered therewith adjusting the mowing height of the mowing members.
- the adjustment screw may be arranged to maintain a certain distance in dependency of the position of the adjustment screw, i.e. the screw is connected to both the mowing section and the support device.
- the adjustment screw is arranged to maintain a minimum distance between the mowing section and the support device, but this distance may be increased by rotation of one or both of the mowing section and/or support device.
- the adjustment screw can be locked by a screw nut.
- the mowing section and the support device are configured to follow irregularities in the ground surface by rotation about the common axis of rotation without a change in the angular position between the mowing section and the support device.
- the angular position of the mowing section and the support device with respect to each other is fixed during movement over the ground surface, but, when desired, this angular position may be adjusted, in particular to adjust the mowing height of the mowing section.
- the support device comprises one or more wheels. Wheels may be provided to facilitate movement of the support device over the ground surface. The wheels decrease the resistance when the mowing machine is moved over the ground surface.
- the mowing members are arranged in a row extending transversely to the intended forward direction of movement.
- the mowing section may comprise multiple mowing members that are rotatable about a substantially vertical or inclined axis of rotation.
- FIG. 1 A depicts a side view of a mowing machine according to a first
- Figure 1 B depicts a top view of the embodiment of Figure 1 A;
- FIG. 2A depicts a side view of a mowing machine according to a second embodiment of the invention
- - Figure 2B depicts the mowing machine of Figure 1A on a steep height increase of a ground surface
- Figures 3A and 3B depict the embodiment of Figure 2A arranged at different cutting level heights.
- Figures 1A and 1 B show a first embodiment of a mowing machine according to the invention, generally indicated by reference numeral 1 .
- the mowing machine 1 is configured to cut crop, such as grass, and comprises a frame 2, a mowing section 3 and a support device having a first skid plate 4 and a second skid plate 5.
- the frame 2 is configured to be connected to a vehicle with which the mowing machine 1 can be moved over a ground surface G.
- the frame 2 may be configured to be mounted on a three-point lifting hitch of a tractor or such, as known in the art.
- the mowing section 3 comprises a cutting bar 6, and a row of five mower members 7 supported by the cutter bar 6.
- Each of the mowing members 7 comprises multiple mowing or cutting blades 8.
- These cutting blades 8 may have any suitable shape or form to cut crop, in particular grass or grass like crops.
- Each of the mowing members 6 is rotatable about an upright axis of rotation 9. It is remarked that, in this patent application, upright means that the axis of rotation is arranged, during operation, at an angle of more than 45 degrees with respect to the ground surface on which the mowing machine is supported during operation, preferably at least 65 degrees. In an embodiment the axes of rotation of the mowing members may be substantially vertical.
- the cutting blades 8 are configured to cut crop, in particular grass, when the mowing members 7 are rotated about the respective axes of rotation 9 and the mowing machine is moved in an intended forward direction of movement A, hereinafter also direction A, over a ground surface G with grass or another crop to be cut.
- a driving device is provided to rotate the mowing members 7 in order to create the cutting circular movement of the cutting blades 8.
- the first and second skid plates 4, 5 are arranged at opposite ends of the mowing section 3.
- the first and second skid plates 4, 5 are configured to rest, during operation, on the ground surface G to support at least part of the weight of the mowing machine 1 .
- the rest of the weight may for example be carried by a tractor on which the frame 2 is mounted.
- the first and second skid plates 4, 5 have a slide surface 10, 1 1 to slide over the ground surface G while at least partially supporting the mowing machine 1 .
- the front ends of the slide surfaces 10, 1 1 seen in the direction A, are bent upwardly to avoid that the slide surfaces 10, 1 1 will be caught by irregularities in or on the ground surface, such as small pits or stones. This shape also facilitates adjustment of the orientation of the first and second skid plates 4, 5, when the mowing machine 1 is moved over uneven terrain.
- the back ends of the slide surfaces 10, 1 1 are also bent upwardly.
- the first and second skid plates 4, 5 may be made of any suitable material.
- the slide surfaces may be made from the same material as the rest of the first and second skid plates 4, 5, but may also be made from other materials.
- the slide surfaces 10, 1 1 may be provided as exchangeable parts that are preferably made of material having a high resistance to wear.
- the slide surfaces 10 , 1 1 each have an elongate shape arranged with its longitudinal axis in the direction A to facilitate sliding over the ground surface G.
- the mowing section 3, the first skid plate 4 and the second skid plate 5 are pivotable about a common axis of rotation 12.
- the mowing section 3 and the skid plates 4, 5 are allowed to freely rotate, together as a unit, over at least a predetermined angle with respect to the common axis of rotation 12 to adapt the rotational position of the mowing section 3 and the skid plates 4, 5 to the orientation of the ground surface G on which the first and second skid plates 4, 5 rest.
- the common axis of rotation 12 extends in a substantially horizontal direction and substantially perpendicular to the direction A.
- the mass center M of the mowing section 3 is arranged, seen in the direction A, behind the common axis of rotation 12.
- the first and second skid plates and the mowing section are pulled instead of pushed over the ground surface G and will more easily follow the irregularities in the ground surface G.
- the axes of rotation 9 of the mowing members 7 are arranged behind the common axis of rotation 12, when seen in the direction A.
- the mowing section 3 is pivotable about the common axis of rotation 12 with respect to the first and second support devices 4, 5. This makes it possible to adjust a relative position of the mowing section 3 with respect to the first skid plate 4 and the second skid plate 5.
- An angle adjustment device 13 is provided to hold the mowing section in a predetermined angular position with respect to the first and second skid plates 4, 5. This predetermined angular position may be adjusted by the angle adjustment device 13. Adjustment of this angular position may for example be desirable to adapt the mowing height of the cutting blades 8, as will be explained with reference to Figure 3A and 3B.
- the first and second skid plates 4, 5 protrude, in the direction A, beyond the circular path of movement of the cutting blades 8. Furthermore, seen from the side (as shown in Figure 1A), the first and second skid plates 4, 5 run below the mowing plane 18 of the circular path of movement of the cutting blades 8. As a result, the first and second skid plates 4, 5 will be able to adjust the orientation when the mowing machine 1 is moved in the direction A over a steep height change before the cutting blades hit the ground surface G, which is generally undesirable as this may damage the mowing machine 1 , in particular the cutting blades 8.
- Figures 2A and 2B show another embodiment of a mowing machine 1 .
- the same parts or parts having substantially the same function are denoted by the same reference numerals as used with respect to the embodiment of Figures 1A and 1 B.
- FIG 2A the mowing machine 1 is shown on a relatively flat ground surface G.
- the cutting blades 8 will cut crop material of the ground over which the mowing machine is moved.
- Figure 2B shows how the orientation of the first and second skid plates 4, 5 and therewith the orientation of the mowing section 3 adapts itself to a steep height increase of a ground surface G as a result of rotation of the combination of skid plates 4, 5 and mowing section 3 about the common axis of rotation 12. It is remarked that since the front end 19 of the skid plates 4, 5 extends in front of the circular path of movement of the cutting blades 8, the risk that the cutting blades 8 hit the ground surface G is substantially reduced even when the mowing machine 1 is driven over a relatively steep height increase in the ground surface.
- the cutting blades 8 are at a position to cut the grass.
- the mowing machine 1 can relatively easily and substantially without risk of damage of the mowing machine be moved over a steep height increase to cut the crop on such steep increase.
- the mowing machine 1 comprises at each end of the mowing section an angle adjustment device 13 to adjust an angular position between the mowing section 3 and the first skid plate 4 and the second skid plate 5, respectively.
- Figures 3A and 3B show the angle adjustment device 13 at the side of the first skid plate 4.
- a similar angle adjustment device 13 is provided at the opposed end of the mowing section 3 between the mowing section 3 and the second skid plate 5.
- the angle adjustment device 13 comprises an adjustment screw 14 configured to adapt a distance between the first skid plate 4 and the mowing section 3.
- the adjustment screw 14 may for example freely rotate at the end where it is fixed to the skid plate 4, while the mowing section 3 is provided with an opening provided with screw thread through which the adjustment screw 14 extends. By rotation of the adjustment screw 14, the opening can be moved along the length of the adjustment screw, and therewith the distance between the mowing section 3 and the first skid plate 4 can be adjusted.
- a screw nut 15 may be provided as a locking device to lock the adjustment screw 14 in a desired position, such that the adjustment screw 14 can no longer be rotated as long as the screw nut 15 is not released.
- Figure 3A shows a first position of the angle adjustment device 13 in which a distance 17 between the first skid plate 4 and the mowing section 3 at the location of the angle adjustment device 13 is relatively large. As a result of this angular position, the cutting blades 8 at the front end of the mowing machine 1 are arranged relatively close to the ground surface and the cutting height 16 of grass that is cut by the cutting blades 8 will be relatively short.
- Figure 3B shows a second position of the angle adjustment device 13.
- the distance 17 between the first skid plate 4 and the mowing section 3 at the location of the angle adjustment device 13 is relatively small.
- the cutting blades 8 at the front end of the mowing machine 1 are arranged relatively far from the ground surface and the cutting height 16 of grass that is cut by the cutting blades 8 will be relatively long.
- the cutting height 16 of the mowing section 3 may be adjusted by the angle adjustment device 13 arranged between the second skid plate 5 and the mowing section 3. It is remarked that it is generally desirable to adjust the angle adjustment devices 13 associated with the first skid plate 4 and the second skid plate 5 such that the cutting height 16 over the whole width of the mowing machine 1 is substantially the same.
- any other device to adjust the distance between the first skid plate 4 and the mowing section 3 at a location spaced from the common axis of rotation 12 to adjust the cutting height of the mowing section 3 may also be applied.
- Such alternative embodiment may comprise an adjustment screw, but may also comprise other means to adapt such distance.
- first skid plate 4 and the second skid plate 5 are formed with a slide surface to slide over the ground surface G.
- the skid plates may be formed by wheels or other contact elements configured to contact the ground surface G in order to at least partially support the mowing machine 1 and to guide the mowing section 3 over the ground surface.
- a mowing section (3) connected to the frame and having a plurality of mower members (7) each rotatable about a upright axis of rotation (9), and - a support device (4, 5) connected to the frame or the mowing section and by means of which the mowing machine, during operation, rests on a ground surface with at least part of its weight,
- the mowing section (3) and the support device (4, 5) are each pivotable about a common axis of rotation (12) with respect to the frame (2), wherein said common axis of rotation is substantially perpendicular to an intended forward direction of movement (A) of the mowing machine (1 ).
- angle adjustment device (13) comprises an adjustment screw (14) arranged between the mowing section (3) and the support device (4, 5) at a location spaced from the common axis of rotation (12).
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
La présente invention concerne une faucheuse, comportant:-un châssis,-une section de fauchage relié au châssis et comprenant une pluralité d'éléments de faucheuse chacun rotatif autour d'un axe vertical de rotation, et-un dispositif de support relié au châssis ou à la section de fauchage et au moyen duquel la faucheuse, lors de son fonctionnement, repose sur une surface de sol avec au moins une partie de son poids. L'invention est caractérisée en ce que la section de fauchage et le dispositif de support peuvent chacun pivoter autour d'un axe de rotation commun par rapport au châssis, ledit axe de rotation commun étant sensiblement perpendiculaire à une direction de déplacement vers l'avant prévue de la faucheuse.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15767354.2A EP3179843B1 (fr) | 2014-08-12 | 2015-08-11 | Faucheuse |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2013322 | 2014-08-12 | ||
NL2013322A NL2013322B1 (en) | 2014-08-12 | 2014-08-12 | Mowing machine. |
NL2013342A NL2013342B1 (en) | 2014-08-12 | 2014-08-20 | Mowing machine. |
NL2013342 | 2014-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016024860A1 true WO2016024860A1 (fr) | 2016-02-18 |
Family
ID=54151373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2015/050572 WO2016024860A1 (fr) | 2014-08-12 | 2015-08-11 | Faucheuse |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2016024860A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH510975A (de) | 1969-05-19 | 1971-08-15 | Bucher Guyer Ag Masch | Heuerntemaschine |
FR2319292A1 (fr) * | 1975-07-28 | 1977-02-25 | Ransomes Sims & Jefferies Ltd | Perfectionnements aux faucheuses |
NL7701080A (nl) * | 1976-02-25 | 1977-08-29 | Kuhn Sa | Landbouwmachine, zoals een maaimachine of een combine-maaimachine met een zwenkbare kast. |
EP0260750A1 (fr) | 1986-09-11 | 1988-03-23 | C. van der Lely N.V. | Faucheuse |
WO2010140929A1 (fr) * | 2009-06-01 | 2010-12-09 | Andersson, Jonas | Tondeuse à gazon |
-
2015
- 2015-08-11 WO PCT/NL2015/050572 patent/WO2016024860A1/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH510975A (de) | 1969-05-19 | 1971-08-15 | Bucher Guyer Ag Masch | Heuerntemaschine |
FR2319292A1 (fr) * | 1975-07-28 | 1977-02-25 | Ransomes Sims & Jefferies Ltd | Perfectionnements aux faucheuses |
NL7701080A (nl) * | 1976-02-25 | 1977-08-29 | Kuhn Sa | Landbouwmachine, zoals een maaimachine of een combine-maaimachine met een zwenkbare kast. |
EP0260750A1 (fr) | 1986-09-11 | 1988-03-23 | C. van der Lely N.V. | Faucheuse |
WO2010140929A1 (fr) * | 2009-06-01 | 2010-12-09 | Andersson, Jonas | Tondeuse à gazon |
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