WO2023062317A1 - Dispositif et procede d'entretien mecanique d'un sol enherbe pour limiter la proliferation d'adventices - Google Patents
Dispositif et procede d'entretien mecanique d'un sol enherbe pour limiter la proliferation d'adventices Download PDFInfo
- Publication number
- WO2023062317A1 WO2023062317A1 PCT/FR2022/051922 FR2022051922W WO2023062317A1 WO 2023062317 A1 WO2023062317 A1 WO 2023062317A1 FR 2022051922 W FR2022051922 W FR 2022051922W WO 2023062317 A1 WO2023062317 A1 WO 2023062317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rods
- tool
- ground
- plate
- grassy
- Prior art date
Links
- 241000196324 Embryophyta Species 0.000 title claims abstract description 47
- 238000012423 maintenance Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 239000002689 soil Substances 0.000 claims description 31
- 230000035755 proliferation Effects 0.000 claims description 13
- 210000000078 claw Anatomy 0.000 claims description 8
- 230000000717 retained effect Effects 0.000 claims description 7
- 241000209504 Poaceae Species 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 235000021438 curry Nutrition 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000195940 Bryophyta Species 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 238000009329 organic farming Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B39/00—Other machines specially adapted for working soil on which crops are growing
- A01B39/12—Other machines specially adapted for working soil on which crops are growing for special purposes, e.g. for special culture
- A01B39/18—Other machines specially adapted for working soil on which crops are growing for special purposes, e.g. for special culture for weeding
- A01B39/19—Rod weeders, i.e. weeder with rotary rods propelled beneath the soil surface
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
- A01M21/02—Apparatus for mechanical destruction
Definitions
- the field of the invention is that of the maintenance of a grassy ground with a view to limiting the proliferation of weeds.
- weeds designates plant species growing on the ground, without having been intentionally sown there. They are therefore plant species foreign to the cultivated variety or to the herbaceous plants which develop the soil.
- the cutting element (cable or blade) therefore extends in an essentially horizontal plane to intercept at right angles the stem of the plants whose head is to be cut.
- WO2008/135867 and FR2520187 propose two devices for treating soil covered with plants grown in rows.
- These devices are designed and operated to treat only part of the soil, in order to preserve the plants. They are not suitable for completely treating grass-covered soil with a view to selectively limiting the proliferation of weeds.
- An object of the invention is to solve, at least partially, this problem. More specifically, an object of the invention is to propose a device which differs from this state of the art to allow the mechanical maintenance of a grassy ground with a view to limiting, in a selective manner, the proliferation of weeds.
- the object of the invention proposes a device for the mechanical maintenance of grassy soil with a view to limiting the proliferation of weeds, the device comprising at least one tool comprising: a. a plate defining a main plane and carrying a plurality of rods, the rods having sections of rounded shapes, the rods extending in a direction perpendicular to the main plane, the free ends of the rods being intended to touch the grassy ground, and b . a drive mechanism associated with the plate and intended to move in rotation the assembly formed by the plate and the rods according to an axis of rotation perpendicular to the main plane.
- this tool allows a mechanical and selective treatment of the plant species composing a grassy ground.
- the desired plant species herbs made up of a simple flexible stem, disappear when the stems of the tool pass and are rather preserved by this tool, thanks in particular to the rounded shape of the stems.
- the undesired plant species bearing a relatively extensive foliage, cannot completely disappear and are partly destroyed or weakened by the passage of the rods of the tool.
- the platter has the shape of a disc and the axis of rotation intersects the platter at the level of the center of the disc.
- the drive mechanism comprises a motor and a shaft defining the axis of rotation, the shaft of the motor being integral with the plate.
- the rods are curry comb claws.
- the rods are retained on the plate along at least one circle whose center is in correspondence with the axis of rotation of the tool.
- the device comprises a frame, a plurality of wheels, the tool being retained on the frame by at least one articulated mechanism, the articulated mechanism allowing free movement of the tool in a direction perpendicular to the ground grassed to absorb variations in elevation of this ground when the device is in motion and the tool rests on the grassy ground.
- the articulated mechanism is connected to a support structure of the frame, the tool being suspended from the support structure by a retaining member to control the force exerted by the ground on the rods of the tool.
- the retaining member is configured to allow the adjustment of the pressure exerted by the ground on the rods.
- the articulated mechanism is associated with a mechanism for lifting the tool, the lifting mechanism making it possible to selectively place the tool in a working position in which the free ends of the rods touch the grassy ground and to place the tool in a raised position in which the free ends of the rods are away from the grassy ground.
- the device comprises an electric motorization system coupled to at least some of the wheels.
- the device comprises a control unit connected to a geolocation sensor and to the electric motorization system in order to make the device autonomous.
- control unit is also connected to the lifting mechanism of the tool to selectively place the tool in the working position or in the raised position.
- control unit is also connected to a system for observing the grassy ground and detecting weeds.
- the invention proposes the use of a device as presented above for treating grassy soil with a view to limiting the proliferation of weeds.
- the invention proposes a method for treating grassy soil with a view to limiting the proliferation of weeds, the method comprising the following steps:
- Figure 1 shows a tool fitted to a mechanical maintenance device of a grassy ground according to the invention
- Figure 2 shows a comb claw which can be provided with a tool according to the invention
- FIG. 3 shows a schematic view from above of a mechanical maintenance device of the grassy ground according to the invention
- Figures 4a and 4b respectively represent a device in the working position and in the raised position
- Figure 5 shows a block diagram of the circuits that can equip the device according to one embodiment.
- FIG. 1 represents a tool 1 equipping a mechanical ground maintenance device according to the invention.
- This tool 1 is formed by a plate 2, here in the form of a disk, defining a main plane of the tool 1.
- the plate 2 carries a plurality of rods 3 which extend in a direction perpendicular to the main plane. These rods are secured to the plate by one of their ends, the other end therefore forming a free and projecting end of the tool 1.
- rod is meant an element having a wire form factor, thin and elongated, but it it is not necessary for this element to be perfectly slender.
- the free ends of the rods 3 are intended to approach as close as possible to the ground, or even to rest on the ground with limited pressure, when the tool is in operation. These free ends are therefore arranged in a single plane, which can be obtained by using rods 3 which all have substantially the same length, to within 1 mm or 2 mm.
- the rods 3 are metallic.
- the plate 2 of the tool 1 with any number of rods, but typically this number is between 10 and 50.
- the density of these rods 3 on the plate defining the intensity of the mechanical treatment of the soil .
- These rods 3 are distributed over the surface of the plate 2, here along a peripheral circle of the plate 2 in the form of a disk.
- the rods 3 consist of curry comb claws, that is to say say of straight and flexible rods 3a and/or retained on the plate by means of a spring 3b.
- a claw is represented in FIG. 2.
- These rods are capable of deforming and/or of pivoting on the plate at the level of the spring 3b, when they are subjected to a force, for example when they encounter an obstacle or the tool 1 is excessively close to the ground.
- the plate 2 when it is in the form of a disc can have a diameter of the order of 30 cm, and the rods 3, have a length typically between 10 and 30 cm.
- the rods 3 have a section, in a plane parallel to the plate, of rounded shape, that is to say devoid of any projecting angle. This avoids forming a rod having a sharp edge which could damage or cut the grass which it is desired to treat, when the tool is driven in rotation.
- the rod has this rounded shape at least in the portion of the rod which is intended to be engaged in the thickness of the grass, on the side of its free end.
- a rod 3 may have a free-form section on the side intended to be associated with the plate.
- the rounded shape can have a circular or oblong contour, for example, or be polygonal.
- this contour has an angle, as is the case with a polygonal contour, it is not projecting, that is to say that it has a magnitude greater than 95°, advantageously greater than 120°, or even 160°.
- the contour is inscribed in a circle having a diameter of the order of a millimeter, and typically comprised between 1 mm and 5 mm. This diameter corresponds in some way to the thickness of the rod 3.
- the rods 3 of a tool 1 do not necessarily all have a cross-section having the same shape or the same thickness.
- the tool 1 also comprises a drive mechanism 4, associated with the plate, and intended to move in rotation the assembly formed by the plate 2 and the rods 3 along an axis of rotation perpendicular to the main plane.
- This drive mechanism 4 in the mode of implementation shown consists of an electric motor 4a rotating a shaft 4b secured to the plate 2 via a fixing plate 4c.
- the electric motor is here provided with a 4d connector making it possible to supply it electrically and to control it via a wiring harness.
- the shaft 4b defines the axis of rotation of the plate 2 and the rods 3, it is fixed to the plate 2 by means of the fixing plate 4c so that the axis of rotation intersects the plate at the level of its center.
- the electric motor 4a can also be provided with means making it possible to retain it fixedly to a tool holder, such as a frame, as will be explained later in this description.
- the latter is capable of rotating the plate 2 and the claws 3 at a speed of rotation of several hundred revolutions/ min or even several thousand rpm.
- this speed of rotation is chosen to obtain a tangential speed of movement of the rod (or rods) arranged furthest from the center of rotation greater than 30 km / h, preferably greater than 40 km / h and more preferably still greater than 50 km / h.
- the speed of rotation can be chosen in the order of 2000 revolutions/min.
- the speed of rotation is variable and controllable, so as to be able to adjust the intensity of the treatment of the ground.
- a high speed of rotation can lead to the deformation of the rods 3, by centrifugal effect when the rods are relatively flexible, so that they are no longer arranged perpendicular to the ground during the treatment. Also, to compensate at least in part for this effect which can affect the quality of the treatment, it is possible to position the rods 3 on the plate 2 by orienting them towards the inside of the tool 1, when this tool is not rotated. This can be obtained by the shape of the rods 3 itself or by giving a slightly concave shape to the tray 2.
- the tool is arranged so that the free end of the rods 3 is flush with grassy ground.
- This soil consists of grasses or other forms of herbaceous plans which one wishes to preserve and which are made up of flexible stems.
- the end free of the rods 3 is therefore arranged in the thickness of the grass so that, typically, their free end is a few millimeters from the ground, up to 5 mm from the ground.
- This free end can also rest on the ground by exerting a very reduced pressure.
- the distance separating the plate from the ground is controlled so that the pressure exerted by the ground on the rods 3 does not exceed a few tenths of a Newton, less than 0.5N. In all cases, the aim is to avoid causing the rods 3 to penetrate into the ground, which could lead to damage to the roots of the grasses or herbaceous plants that it is desired to treat.
- rods 3 and/or to retain them on the plate by means of a pivoting mechanism as is the case with the curry comb claws mentioned in a previous passage, in order to avoid the penetration of the rods into the ground, especially when the latter is not perfectly flat and has protuberances.
- the soil may also comprise weeds, which it is desired to eliminate, which generally have leaves or a more extensive form than those of the herbaceous plans which develop the soil.
- the plate In the operating position, the plate is arranged parallel to the ground, horizontally when the ground has no slope.
- the drive mechanism is in operation and the plate 2 and the rods 3 are driven in rotation at a speed which can reach several hundred revolutions/min, as mentioned previously, so that at least some of the rods move with a high tangential speed, greater than 30 km/h.
- the grasses and other herbaceous plants are not entirely affected by the rotational movement of the rods 3 resting on the ground, or arranged close to the ground: these grasses and herbaceous plants tend to deform and fade away as the rods 3 dragged past in rotation.
- the rounded section, and therefore not sharp, of the rods 3 also avoids damage to the grasses.
- the dense foliage of weeds cannot entirely avoid the passage of the stems 3.
- This foliage (whose dimension in a horizontal plane is typically greater than 2 mm) is sheared by the stems 3 and destroyed, which tends to weaken these plans and limit their proliferation.
- the tool therefore allows a mechanical and selective treatment of the plant species making up the grassy ground, in order to largely preserve the desired plant species, and on the contrary destroy or weaken the undesired plant species bearing relatively extensive foliage.
- the tool 1 has other beneficial effects for the soil, the rods 3, when they get close enough, tend to scrape the soil which tends to disperse, by scarification effect, the residues of mowing, the mosses, root tangles and other deposits which tend to accumulate between plants and which block the necessary exchange of soil with air and water.
- this device D when associated with a tool holder, can be operated manually. But advantageously it equips a rolling device for mechanical maintenance of a grassy ground.
- this device D comprises a frame 5 on which are retained the tool 1 and a plurality of wheels 6 for moving this tool.
- This device D can then be towed, and in this case the chassis can be provided with a conventional coupling hook, or be motorized to form an independent maintenance machine.
- the device D comprises an electric motorization system coupled to at least some of the wheels, for example the two front wheels of the device.
- the other two wheels can consist of simple swivel wheels. Whatever solution is chosen, towed or motorized, it is possible to treat a large area of land by traversing it as one would when mowing.
- the forward speed of the frame to allow the proper functioning of the tool 1, is preferably between 2 and 10 km/h.
- a lower number of rods 3 (or a lower density of rods 3) can also allow mechanical treatment of the soil at low speed.
- the tool 1 is suspended from a support structure of the chassis, by means of a retaining member, such as a spring, in a position in which the ends of the rods 3 are flush with the ground, as has been presented in an earlier passage of this description.
- a retaining member such as a spring
- FIGs 3, 4a and 4b Such a device is shown in Figures 3, 4a and 4b.
- the articulated mechanism is here formed of two superimposed forks 7a, 7b.
- the two arms of each fork 7a, 7b are attached to the support structure 5a of the frame 5 by means of pivot links.
- the end of each fork 7a, 7b is retained in pivot connection to a tool support 7c, on which is fixed the electric motor 4a of the tool 1.
- a retaining member, here a spring 8, connecting the load-bearing structure 5a to the upper fork, makes it possible to suspend the tool 1, that is to say by suitably choosing the stiffness of the spring according to the weight of the tool 1, to prevent it from touching the ground or to limit the pressure exerted by the ground on the rods 3.
- Such a mechanism allows the tool to move freely in a direction perpendicular to the ground, and to absorb the variations in elevation of the ground when the device D is in motion .
- a retaining member making it possible to adjust, according to the required conditions, the distance separating the rods 3 from the ground and/or the pressure exerted by the ground on the rods 3. More particularly, since the retaining member is formed of a spring 8, said spring 8 can be adjusted to modulate the return force that it exerts on the tool 1. This adjustment can in particular involve a mobile attachment point and/or adjustable. This aspect of adjustment is not limited to this means of adjustment alone, and those skilled in the art on the basis of their general knowledge may consider any other solution.
- a lifting mechanism 9 of the tool 1 is also provided on the device D represented in FIGS. 4a, 4b, a lifting mechanism 9 of the tool 1, this mechanism 9 being associated with the articulated mechanism.
- the lifting mechanism 9 makes it possible to selectively place the tool 1 in a working position in which the free ends of the rods 3 flush with the grassy ground ( Figure 4a) and to have the tool in a raised position in which the free ends of the rods 3 are away from the grassy ground ( Figure 4b).
- This survey mechanism 9 therefore makes it possible to move the device D without risking that the tool 1 hits the ground, for example to bring the device onto the ground to be treated, at high speed. It also makes it possible to activate the treatment only on the areas of the ground which require treatment, areas therefore comprising a relatively high density of weeds.
- the survey device 9 of the mode of implementation represented in FIGS. 4a, 4b consists of a controllable cylinder, arranged between the supporting structure 5a and the lower fork 7b of the articulated mechanism.
- the lower fork 7b is raised, and the tool 1 is raised to place it in the raised position.
- the lower fork is lowered until the ends of the rods 3 are flush with the ground. It is noted that this movement is facilitated by the presence of the retaining member 8 which makes it possible to suspend the tool 1, even when the latter has a significant weight.
- the mechanical maintenance device D is configured to be independent. It is therefore equipped with a set of electrical and electronic elements illustrated in figure 5.
- the device D is thus equipped with an electric motorization system SM, as mentioned previously.
- This system can be formed of a motor or of a plurality of motors associated with at least some of the wheels in order to allow, by suitably controlling this or these motor(s), the movement along various trajectories.
- the motorization system SM also comprises an energy source, typically rechargeable batteries, connected to the motor by electrical circuits for managing the battery and for power.
- the device D comprises an electronic box containing a control unit Cde.
- This unit can take the form of a card or of a plurality of electronic cards comprising, in a manner known per se, at least one processor or microcontroller allowing the execution of computer programs recorded in a memory.
- This memory can also be used to record all of the data provided by the sensors with which the device D has been equipped.
- the control unit Cde is electrically connected to the various electronic or electrical elements carried by the device, sensors or actuators, and in particular to the electric motorization system SM.
- the electronic box containing the control unit Cde can be powered electrically by the batteries of the motorization system SM or include its own source of electrical energy.
- the device D has also been equipped with a geolocation sensor GL, for example comprising a sensor of the type
- the GL geolocation sensor may also include an inertial unit.
- the control unit Cde can in this way obtain the position, the attitude and the speed of the device D, which enables it in particular to control the movement of this device along a predetermined route.
- the control unit Cde can be connected to remote computing and/or storage means or to other types of electronic devices via a T/R communication interface.
- This interface can implement any suitable protocol. It may thus be a question of connecting the Cde control unit by a 4G, 5G, Wifi, NFC Bluetooth, etc. wireless link. remote, a path that the mechanical maintenance device of a grassy ground will have to follow to treat a ground. This route can be transmitted to the control unit Cde via the E/R communication interface, which can then control the device D along this route in order to independently treat the grassy ground to be maintained.
- the mechanical maintenance device with any other sensor, for example obstacle detection sensors K to make it possible to stop any movement if a body is detected in the immediate environment of the device D. It may be use an ultrasonic proximity sensor or even a LIDAR device.
- the control unit Cde is also connected to the other elements described of the device 1.
- the control unit Cde is connected to the electric motor 4a of the tool 1, in order to control the starting and stopping of the rotation of the plate 2 and the claws 3.
- the control unit can also regulate the speed of rotation, for example to adjust it to the forward speed of the device D or to the nature of the soil and/or weeds.
- control unit Cde is also connected to the survey mechanism 9 of the tool 1 to selectively place this tool in the working position or in the raised position. This makes it possible in particular to move the device D over sections of route with the tool 1 in the raised position, when it is not necessary or desirable to treat the ground. These may be the sections of the route making it possible to bring the device D from its place of storage to the land to be treated.
- the control unit can then, during the movement of the device D on its route, actuate the lifting mechanism 9 of the tool 1 to place it in the working position and start the electric motor 4a only when the device D enters in such areas.
- control unit Cde is also connected to a system for observing the grassy soil and detecting weeds SD.
- This system can be composed of a camera, for example fixed to the chassis and placed at the front of the device D (relative to the direction of movement of this device). The camera is oriented so as to form successive images of the grassy ground.
- a detection module for example a neural network or any other architecture that can be configured by learning to recognize the presence of weeds in an image of the soil.
- This computer architecture can be executed on the Cde control unit or on an independent unit but connected to the Cde control unit.
- the grassy soil observation and weed detection system SD is therefore capable of supplying a signal to the control unit Cde when the device D, during its movement along the planned route, enters or leaves a zone of land to be treated.
- the control unit Cde can then control the tool 1, as described previously, to place it in the working position and activate its rotation.
- the detection system SD can also indicate the nature of the recognized weeds, or at the very least indicate a category of weeds, in order to adjust the processing implemented by the tool 1. This may be for example to adjust the speed of rotation of the plate 2, the speed of movement of the device D in the zone, or even to adjust the pressure exerted by the rods 3 on the ground, if the device D is provided with a member retainer 8 allowing this pressure to be adjusted.
- the device can in particular implement functions other than those which have just been described. It is possible in particular to equip it with means for collecting and/or crushing plant residues which have been formed during the mechanical treatment of the soil or raised from the soil by the effect of scarification.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Catching Or Destruction (AREA)
- Cultivation Of Plants (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22802213.3A EP4415509A1 (fr) | 2021-10-15 | 2022-10-12 | Dispositif et procede d'entretien mecanique d'un sol enherbe pour limiter la proliferation d'adventices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2110948A FR3128093B1 (fr) | 2021-10-15 | 2021-10-15 | Dispositif d’entretien mecanique d’un sol enherbe pour limiter la proliferation d’adventices |
FRFR2110948 | 2021-10-15 |
Publications (1)
Publication Number | Publication Date |
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WO2023062317A1 true WO2023062317A1 (fr) | 2023-04-20 |
Family
ID=78820509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2022/051922 WO2023062317A1 (fr) | 2021-10-15 | 2022-10-12 | Dispositif et procede d'entretien mecanique d'un sol enherbe pour limiter la proliferation d'adventices |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4415509A1 (fr) |
FR (1) | FR3128093B1 (fr) |
WO (1) | WO2023062317A1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2463571A1 (fr) | 1979-08-22 | 1981-02-27 | Kidd Archibald W | Machine agricole possedant trois rotors a axe de rotation vertical, et dispositif d'entrainement de ces rotors |
FR2520187A1 (fr) | 1982-01-25 | 1983-07-29 | Ballu Gabriel | Machine a edrageonner les artichauts |
WO2008135867A2 (fr) | 2007-05-08 | 2008-11-13 | University Of Copenhagen | Sarcloirs de précision |
FR2973645A1 (fr) | 2011-04-05 | 2012-10-12 | Jr Agridistrib | Ecimeuse mecanique des adventices en cultures vivrieres |
US10238021B2 (en) * | 2015-03-16 | 2019-03-26 | K.U.L.T. Kress Umweltschonende Landtechnik Gmbh | Soil-working device; method for the height guidance of at least one finger-weeder tool above a row in a row plantation |
EP3756432A1 (fr) * | 2019-06-27 | 2020-12-30 | Thomas Hatzenbichler Agro-Technik GmbH | Procédé et dispositif pour herses par dents |
-
2021
- 2021-10-15 FR FR2110948A patent/FR3128093B1/fr active Active
-
2022
- 2022-10-12 EP EP22802213.3A patent/EP4415509A1/fr active Pending
- 2022-10-12 WO PCT/FR2022/051922 patent/WO2023062317A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2463571A1 (fr) | 1979-08-22 | 1981-02-27 | Kidd Archibald W | Machine agricole possedant trois rotors a axe de rotation vertical, et dispositif d'entrainement de ces rotors |
FR2520187A1 (fr) | 1982-01-25 | 1983-07-29 | Ballu Gabriel | Machine a edrageonner les artichauts |
WO2008135867A2 (fr) | 2007-05-08 | 2008-11-13 | University Of Copenhagen | Sarcloirs de précision |
FR2973645A1 (fr) | 2011-04-05 | 2012-10-12 | Jr Agridistrib | Ecimeuse mecanique des adventices en cultures vivrieres |
US10238021B2 (en) * | 2015-03-16 | 2019-03-26 | K.U.L.T. Kress Umweltschonende Landtechnik Gmbh | Soil-working device; method for the height guidance of at least one finger-weeder tool above a row in a row plantation |
EP3756432A1 (fr) * | 2019-06-27 | 2020-12-30 | Thomas Hatzenbichler Agro-Technik GmbH | Procédé et dispositif pour herses par dents |
Also Published As
Publication number | Publication date |
---|---|
FR3128093B1 (fr) | 2023-12-01 |
EP4415509A1 (fr) | 2024-08-21 |
FR3128093A1 (fr) | 2023-04-21 |
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