• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Potato harvester, wherein the potato harvester comprises an active cleaning unit (35) between a sieving belt (7) and a further conveyor installation (37), for conveying and actively cleaning the potatoes from the sieving belt (7) to the further conveyor installation (37), the active cleaning unit (35) is located mainly below the haulm discharge belt (13) for receiving at least a portion of the potatoes falling through the haulm discharge belt (13).
    公开号:BE1022056B1
    申请号:E2013/0423
    申请日:2013-06-17
    公开日:2016-02-11
    发明作者:Stefan Top
    申请人:Avr；
    IPC主号:
    专利说明:

    Potato harvester and use thereof
    The present invention relates to a potato harvesting machine according to the preamble of the first claim.
    The present invention also relates to the use of the potato harvester according to the invention.
    Such potato harvesters are already known to those skilled in the art. The potato harvesting machine according to BE 1014402 A3, for example, comprises at least one harvesting unit formed by a harvesting cutter and corresponding lateral discs and a depth control device such as a back follower. The potato harvesting machine further comprises a strainer for receiving and transporting potatoes harvested by the harvesting unit and sifting soil from the potatoes harvested by the harvesting unit. The strainer belt is provided to rotate in a predetermined direction to transport the potatoes along a conveying direction and comprises at least one sloping portion directed upward in the predetermined direction of rotation. A coarse-mesh deciduous conveyor belt is mounted in such a way that it is provided to rotate around the screen belt, also in the above-mentioned direction of rotation. A further transport installation is provided for receiving the potatoes from the sieve belt. Moreover, the screening belt is provided for transporting the potatoes from the screening belt to a further location, a container, along the conveying direction. The further transport installation comprises a hedgehog belt placed mainly under the foliage conveyor. The hedgehog belt is provided to rotate along the above-mentioned direction of rotation for further transport of the potatoes along the transport direction from under the foliage conveyor. The hedgehog belt comprises a potato orientation element inclined over the hedgehog belt so that potatoes are pushed sideways from the hedgehog belt along the transport direction.
    However, it was found that although such a potato harvester works well in one type of soil, such a potato machine performs less in other types of soil. For example, when the soil is relatively wet, the potatoes that leave the potato harvester have some dirt on or between them.
    It is therefore an object of the present invention to allow the potato harvester to be used in various types of soil in wet and dry conditions still performing with a relatively high capacity.
    This is realized according to the potato harvesting machine according to the characterizing part of the first claim.
    To this end, the potato harvesting machine comprises an active cleaning unit between the sieve belt and the further conveyor, which transports and actively cleans the potatoes from the sieve belt to the further conveyor, the active cleaning unit being placed primarily under the foliage conveyor for receiving at least a part of the conveyor belt. potatoes falling through the haulm conveyor.
    In the context of the present application, active cleaning unit is understood to mean a unit for cleaning potatoes through interaction with the potatoes and, for this purpose, comprises cleaning elements with a specifically designed shape and / or subjecting the cleaning elements to a specific movement. For example, a sieve mat and a hedgehog belt are not considered to be active cleaning units.
    Examples of such active cleaning units are, for example, a set of rolling cylindrical bodies placed parallel to each other. The set of rolling cylindrical bodies can be placed with their longitudinal axis along the predetermined direction and / or the set of rolling cylindrical the set of rolling cylindrical bodies is placed with their longitudinal axis intersecting with the predetermined direction. Adjacent rolling bodies of the set of rolling cylindrical bodies may have opposite directions of rotation and / or adjacent rolling bodies of the set of rolling cylindrical bodies may have similar directions of rotation. At least a part of the cylindrical bodies may comprise a protrusion such as, for example, a spiral screw wound around the surface of the cylindrical bodies. Although all cylindrical bodies may comprise such a screw, preferably only any other cylindrical rolling body may comprise such a screw.
    If the active cleaning unit is placed primarily under the foliage conveyor for receiving at least a portion of the potatoes falling through the foliage conveyor and between the strainer belt and the further conveyor, the length of the foliage conveyor can be increased relative to the potato harvesting machine according to the potato harvesting machine. state of the art, as described, for example, in BE 1014402 A3. Therefore, the separation of the harvested potatoes from unwanted materials, such as foliage, can be further improved even over the ones already present through active cleaning itself.
    Moreover, it was found that such an active cleaning unit, in particular a modular active cleaning unit, allows the potato harvester to be adapted to different types of soil as a specific active cleaning unit depending on the type of soil thanks to the modularity of the cleaning unit. For example, in dry conditions an active cleaning unit can be used that is specifically adapted to such dry types of soil, while in wet conditions an active cleaning unit can be used that is specifically adapted to such wet types of soil.
    Moreover, although an active cleaning unit has been added to the potato harvester, it can be avoided that potatoes do not have to undergo additional changes in direction, with the risk of bruising on the potatoes increasing.
    According to preferred embodiments of the present invention, the potato harvesting machine comprises a tray on one side of a wheeled axle, the further transport installation is provided for transporting the potatoes from the strainer belt to the tray and the active cleaning unit, and the active cleaning unit is mainly on the other side of the axle is placed on wheels. It was found that by placing the active cleaning unit on the other side of the wheeled axle, the tray can remain relatively close to the wheeled axle so as to improve the stability of the potato harvester.
    According to preferred embodiments of the potato harvesting machine according to the present invention, the further transport installation comprises a subsequent belt that rotates along a direction that crosses the above-mentioned rotation direction and follows the preceding hedgehog belt.
    According to further preferred embodiments of the potato harvesting machine according to the present invention, the subsequent belt further comprises orienting elements extending over the subsequent belt in such an inclined position that the respective elements push the potatoes laterally with respect to the subsequent belt along the conveying direction to a sorting table for transporting the potatoes to the further location. According to preferred embodiments of the potato harvesting machine according to the invention, the subsequent belt is a hedgehog belt so that the further directional element pushes the potatoes laterally with respect to the subsequent hedgehog belt along the conveying direction to a sorting table for conveying the potatoes to the further location. It has been found that in such a configuration the directional changes of the potatoes along the conveying direction can be kept low and more particularly limited to two, for example one at each of the potato directional elements.
    The invention also relates to the use of the potato harvester according to the present invention.
    The invention will be further elucidated with reference to the following description and the accompanying figures.
    Figure 1 shows a side view of a preferred embodiment of a potato harvesting machine according to the present invention.
    Figure 2 shows a top view of the potato harvester according to the present invention.
    Figure 3 shows a perspective view of the potato harvester according to Figure 1.
    In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention and how it can be applied in certain embodiments. It will be understood, however, that the present invention can be practiced without these specific details. In other cases, well-known methods, procedures, and techniques were not described in detail in order not to obscure the present invention. While the present invention will be described with respect to particular embodiments and with reference to certain drawings, the invention is not limited thereto. The drawings incorporated and described herein are schematic and are not limitative of the scope of the invention. It is also noted that in the drawings, the size of certain elements may be exaggerated and therefore not drawn to scale for illustrative purposes.
    The present invention will be described below with reference to specific embodiments and with reference to certain drawings, but the invention is not limited thereto and is only defined by the claims. The drawings shown here are only schematic representations and are not limitative. In the drawings, the dimensions of certain parts may be shown enlarged, which means that the parts in question are not shown to scale, and this only for illustrative purposes. The dimensions and the relative dimensions do not necessarily correspond to the actual practical embodiments of the invention.
    In addition, terms such as "first", "second", "third", and the like are used in the description and in the claims to distinguish between similar elements and not necessarily to indicate a sequential or chronological order. matter are interchangeable in the appropriate circumstances, and the embodiments of the invention may operate in sequences other than those described or illustrated herein.
    In addition, terms such as "top", "bottom", "top", "bottom", and the like are used in the description and in the claims for descriptive purposes and not necessarily to indicate relative positions. The terms thus used are interchangeable in the appropriate conditions, and the embodiments of the invention may operate in orientations other than those described or illustrated herein.
    The term "comprising" and derived terms, as used in the claims, must or must not be interpreted as being limited to the means that are mentioned thereafter; the term does not exclude other elements or steps. The term is to be interpreted as a specification of the listed properties, integers, steps, or components referenced, without excluding the presence or addition of one or more additional properties, integers, steps, or components, or groups thereof. The scope of an expression such as "a device comprising the means A and B" is therefore not only limited to devices that consist purely of components A and B. What is meant, on the other hand, is that, with regard to the present invention, the only relevant components A and B.
    The potato harvesting machine according to the invention schematically shown in Figures 1 and 2 is a pulled potato harvesting machine, the general design of which is known per se with a chassis, wheels and drive systems of the various sieve belts and / or conveyor belts, and will therefore not be further elaborated herein. some detail. Instead of being a design drawn as shown in the figures, the potato harvester can also be self-propelled. The potato harvesting machine can furthermore not only be suitable for harvesting potatoes, but also suitable for harvesting other crops such as carrots, or for picking up onions and the like.
    The potato harvesting machine shown is provided with a harvesting unit 1, for example but not critically formed by a harvesting cutter or cutter 2 and corresponding lateral discs 3 and a depth control device such as a back follower 4. If desired, the potato harvesting machine can be provided with two or more of such harvesting units.
    The harvesting cutter 2 as shown in the figures is preferably, but not necessarily, followed by a first upwardly inclined fine-meshed sieve belt or sieve belt 5, for sifting soil from the potatoes, being harvested by the harvesting unit 1. The first sieve belt is preferably rolling around at its lower end and at its upper end.
    For the sake of simplicity, these roles, which are known per se, were not all shown in the figures. The sieve tape 5 is preferably composed of interconnected transverse bars with a rod, such as a metal rod, plastic rods, etc., which may sometimes be coated with rubber or another elastic synthetic material. This first sieve belt 5 is known in practice as the harvesting belt.
    The upper end of the first screen belt 5 is connected to a second screen belt 7, which is built in the same way as the first screen belt 5, and which is also guided around rollers at the bottom and the top. This second screen belt 7 rotates in the same direction as the first screen belt 5, more particularly in the direction of the arrow 8. If desired, one or more further screen belts can be provided between the harvesting belt 5 and the second screen belt 7.
    The second screen belt 7 comprises at least one inclined part 11 which is directed upwards in the predetermined direction of rotation. That inclined part 11 of the second screen belt 7 is directed upwards at an angle which is preferably greater than 20 °, but less than 40 °, in the direction of rotation 8 of this screen belt. The angle is preferably greater than 30 °, in particular greater than 32 °, and less than 38 °, most preferably for an angle of 33 ° to 37 °. By this choice of the angle of inclination, the harvested potatoes can be taken faster to the required height, the machine can be of a construction that is shorter and cheaper, and larger wheels 9 can also be provided, if desired. Possibly, although not shown in the figures, towards the upper end of the second screen belt 7, an optional bend is provided in said screen belt, the bottom, steep part of the second screen belt 7 forming an angle of about 35 °, while the top, less steep part of said sieve belt forms an angle of approximately 15 °.
    To separate the foliage from the harvested potatoes, a foliage conveyor 13 is attached in the machine according to the invention in such a way that it rotates around the screening belt 7, in the same direction of rotation 8 as said second screening belt 7, and preferably in such a way in that the deciduous conveyor belt 13 preferably extends over at least a part of its width between the first and the second screen belts. Said foliage conveyor 13 is a coarse mesh bar conveyor on which the foliage remains, but through which the potatoes fall. In the potato harvesting machine according to the invention, said foliage removal belt is provided not only for separating and removing the larger foliage parts, but also for uncontrolled rolling back of the potatoes on the preferably steep part 11 of the second sieve belt 7. For this purpose, in the steep part 11 of the second sieve belt 7, the said foliage conveyor 7 is preferably guided so close to said sieve conveyor 7 that the potatoes, or at any rate the large potatoes, cannot roll down between the foliage conveyor and the second sieve conveyor.
    Notwithstanding the fact that in the potato harvesting machine according to the invention uncontrolled rolling back of the potatoes on the second screen belt is prevented, uncontrolled rolling back of the potatoes on said screen belt is preferably still possible, in order to obtain a greater cleaning effect. The fact is that the drives of the second screen belt and the haulm conveyor are preferably designed to run the second screen belt at a speed equal to 1 to 1.4 times the rotation speed of the haulm conveyor. By running the second screen belt at a faster speed than that of the foliage belt, it is ensured that the potatoes along the second screen belt, but not too fast or, in other words, uncontrolled rolling back of the larger potatoes is prevented by the foliage belt. The rotation speed of said foliage conveyor in fact determines the speed at which the potatoes will be transferred upwards along the second sieve belt.
    A possible embodiment of the foliage conveyor 13 is shown and described, for example, in BE1014402. The foliage discharge belt 13 shown in BE1014402 is formed, for example, by two laterally toothed belts, between which transverse bars are provided. Said transverse bars are formed by a central rod, for example a metal rod or a plastic rod, around which an elastic - in particular a rubber - coating is provided. Two types of rubber protrusions, with a mutual distance of approximately 20 cm, are formed on the transverse bars. The first type of protrusions is provided with an opening through which a longitudinal cord can be passed, while a recess is provided under the second type of protrusions, in the rubber lining of the bars, for adjusting longitudinal belts. Said straps and cords are designed to work with the bars themselves to collect the foliage. The protrusions then help to ensure that the foliage that has been collected is pulled along by the foliage conveyor.
    In the deciduous conveyor belts 13, the protrusions are for instance situated at a mutual distance of at least 8 cm, and in particular at a mutual distance of at least 10 cm. However, because of this relatively large mutual distance, said protrusions often cannot prevent potatoes on the second sieve belt 7 from rolling back in an uncontrolled manner, in other words, along the transverse bars of the foliage conveyor.
    According to a preferred embodiment, uncontrolled rolling back of the potatoes by the transverse bars themselves of the haulm conveyor 13 is prevented by the fact that said transverse bars are arranged at a sufficiently large distance from the second sieve band, in such a way that they themselves protrude to a sufficient height above the second sieve belt. In particular, said transverse bars are arranged at a distance greater than 2 cm, and preferably at a distance of at least 3, and more particularly at a distance of at least 4 cm, from the second sieve tape. This distance is preferably variable, in particular at least from 2.5 to 9 cm, and more preferably at least from 4 to 8 cm, such as for example 7 cm, in such a way that said distance can be set experimentally determined at the best value . In this case, it is possible in practice for the distance between the bars of the deciduous conveyor belt 13 and the upper surface of the second screen belt 7 to be larger than the smallest potatoes that are transferred along the screen belt, since these small potatoes are less likely to to roll back and, if they roll back, they are held by larger potatoes, and in particular also by leaves that remain attached to the bars of the leaves conveyor.
    To prevent uncontrolled rolling back of the potatoes, the transverse bars of the haulm conveyor 13 need not be exceptionally high. The height of said bars can in particular be less than 4.5 cm, and more particularly even less than 3.5 cm.
    Instead of preventing uncontrolled rolling back by means of transverse bars, it is also possible, if desired, to provide additional protrusions on said bars. However, in order to produce a simple and inexpensive design of deciduous conveyor belt as possible, and to limit the adhesion of soil as much as possible, it is preferable to provide as few protrusions as possible. In this respect it is also important according to the invention to ensure that all protrusions protrude over a distance of no more than 4 cm from the surface formed by the transverse bars of the deciduous conveyor belt, and that this is both above the upper surface and possibly also below the bottom surface.
    Another preferred feature of the potato harvester is that the height of the part of the width, preferably of the transverse bars if present, of the deciduous conveyor belt extending between the first and the second screen belt is less than 8 cm, in particular less than 7 cm cm, and preferably even less than 6 cm. This is possible by not providing protrusions on the transverse bars of the foliage conveyor, or by providing only bars with a limited height. The advantage of such a "thin" foliage conveyor is that the fall height at the transition between the first and the second screen conveyor can be limited, and that the foliage conveyor can also be produced in a simpler and therefore cheaper manner. A further advantage of the limited height that the foliage conveyor protrudes above the second screening belt is that at the transition between the first and the second screening belts, the potatoes will fall along in their fall less foliage, so that the foliage will be collected and removed more efficiently by the foliage conveyor.
    The potato harvesting machine shown in the figures comprises an active cleaning unit 35 between the sieve belt 7 and the further transport installation 37 which transports and actively cleans the potatoes from the sieve belt 7 to the further transport installation 37, the active cleaning unit, the active cleaning unit 35 mainly under the haulm conveyor belt 13 being placed to receive at least a portion of the potatoes falling through the foliage conveyor 13.
    The active cleaning unit 35 shown comprises a set of rolling cylindrical bodies 36 placed parallel to each other. The set of rolling cylindrical bodies 36 is placed with their longitudinal axes along the conveying direction. The set of rolling cylindrical bodies 36 is positioned with their longitudinal axes intersecting with the predetermined direction, in the shown case even perpendicular to the predetermined direction. Although not shown in the figures, preferably at least a portion of the cylindrical bodies 36 of the illustrated embodiment include a protrusion. However, as discussed above, alternative embodiments are also possible, although not shown in the figures.
    In the potato harvesting machine according to the invention, the active cleaning unit 35 is followed by a belt 24 arranged in line with and with protrusions, in particular by a hedgehog belt 24. The hedgehog belt 24 comprises a potato orienting element 25 placed inclined over the hedgehog belt 24 so that potatoes are sideways of hedgehog belt 24 are placed along the conveying direction 38. The potato target element 25 is preferably placed one above the other in the form of a set of driven rollers or brushes 25 on the hedgehog belt 24. The rollers or brushes are preferably placed in such an inclined position that they push the potatoes sideways off the hedgehog belt 24 while smaller impurities such as stones, clods, and foliage are removed under said rollers or brushes 25.
    The further conveyor installation 37 shown in the figures comprises a subsequent belt 26 which rotates along a direction intersecting with the above-mentioned direction of rotation and subsequently to the preceding hedgehog belt 24. The subsequent belt 26, as shown in the figures, preferably comprises further orienting elements 27 which extend over the subsequent belt in such an inclined position that the respective elements push the potatoes sideways relative to the subsequent belt 26 further along the conveying direction 38 to a sorting table 28 for transporting the potatoes to the further location 30. The subsequent belt 26 is preferably a hedgehog belt so that the further alignment elements 27 push the potatoes sideways with respect to the subsequent hedgehog belt 26 further along the conveying direction 38 to a sorting table for conveying potatoes to the further location 30, which is preferably a tray 30.
    However, in the potato harvesting machine according to the invention, the hedgehog belt 24 can also be followed by several further belts or other transport units of the further transport installation, although not shown in the figures.
    Behind or even replacing the rotor cam 27, as shown in the figures but not necessarily a double rotor cam 27, other potato orienting devices such as a set of rollers or brushes, other rollers 31 or set of rollers 31 provided on the transverse hedgehog belt 26. Which rollers, for example, send the clods that pass under the rotor cam to a clod belt 32. All the potatoes that were carried can still be picked out by hand on said clod. The small impurities are removed again under the rollers or brushes 31. However, such configuration is not critical to the invention.
    To remove all potatoes that can still hang from said foliage, though not shown, foliage scrapers are preferably provided both on the top and on the bottom of the foliage conveyor. On the underside, these foliage scrapers are more particularly formed by one or more rollers (under which a guide plate can be fitted if desired, so that the leveled potatoes arrive on the hedgehog belt 24 for the rollers 25), and are formed at the top by a set of rubber-coated springs . The potatoes loosened by these foliage strippers fall either on the hedgehog belt 24 or on the active cleaning unit 35.
    As can be seen in the figures, the potato harvesting machine preferably, although not necessarily, comprises a tray 30 on one side of a wheeled axle 9, the further location along the conveying direction 38 is preferably the tray 30 and the active cleaning unit 35 is preferably mainly placed on wheels on the other side of the bearing axle 9.
    It will be clear from the description given above of a special embodiment of the potato harvesting machine according to the invention that numerous further changes can be made without departing from the scope of the supplementary claims. In particular, the arrangement of the various parts can be changed, or certain belts or cleaning agents can be omitted or added to the harvester.
    权利要求:
    Claims (13)
    [1]
    CLAIMS:
    A potato harvesting machine, comprising at least one harvesting unit (1), a sieve belt (7) for receiving and transporting potatoes harvested by the harvesting unit (1) and sieving soil from the potatoes harvested by the harvesting unit (1) and provided to rotate in a predetermined direction (8) for conveying the potatoes along a conveying direction (38), the sieve belt (7) comprises at least one inclined part (11) which is directed upwards in the predetermined direction of rotation, a coarse-meshed deciduous conveyor belt (13) mounted in such a way that it is provided to rotate around the screen belt (7), likewise in the above-mentioned direction of rotation (8), and a further transport installation (37) for receiving and further transporting the potatoes to a further location (30) along the conveying direction (38), the further conveying installation (37) comprising a hedgehog belt (24) placed substantially under the foliage conveyor (13) and provided to rotate along the top said rotational direction (8) for further transporting the potatoes along the conveying direction (38) from beneath the foliage conveyor (13, the hedgehog belt (24) comprising a potato orienting element (25) inclined over the hedgehog belt (24) so that potatoes laterally from the hedgehog belt (24) are pushed along the conveying direction (38), characterized in that the potato harvesting machine comprises an active cleaning unit (35) between the strainer belt (7) and the further conveying device (37), which transports the potatoes and actively cleans the strainer belt (7) ) to the further conveying installation (37) and that the active cleaning unit (35) is placed mainly under the foliage conveyor (13) for receiving at least a portion of the potatoes falling through the foliage conveyor (13).
    [2]
    Potato harvester according to claim 1, characterized in that the potato harvester comprises a tray (30) on one side of a wheeled axle (9), the further location along the conveying direction (38) is the tray (30) and the active cleaning unit (35) is placed essentially on the other side of the bearing axle (9) on wheels.
    [3]
    Potato harvester according to claim 1 or 2, characterized in that the active cleaning unit (35) comprises a set of rolling cylindrical bodies (36) placed parallel to each other.
    [4]
    Potato harvester according to claim 3, characterized in that the set of rolling cylindrical bodies (36) with their longitudinal axes are placed along the conveying direction (38).
    [5]
    Potato harvesting machine according to claim 3, characterized in that the set of rolling cylindrical bodies (36) with their longitudinal axes are arranged crossing the predetermined direction (8).
    [6]
    Potato harvester according to claim 3 or 4, characterized in that adjacent rolling bodies of the set of rolling cylindrical bodies (36) have opposite directions of rotation.
    [7]
    Potato harvester according to claim 3 or 4, characterized in that adjacent rolling bodies of the set of rolling cylindrical bodies (36) have the same directions of rotation.
    [8]
    Potato harvester according to any of the claims 3-7, characterized in that at least a part of the cylindrical bodies (36) comprises a protrusion.
    [9]
    Potato harvester according to any one of claims 1 to 8, characterized in that the further conveying installation (37) comprises a subsequent belt (26) rotating along the direction crossing with the above-mentioned direction of rotation and subsequently to the preceding hedgehog belt (24).
    [10]
    Potato harvester according to claim 9, characterized in that the subsequent belt (26) comprises further guide elements (27) extending over the subsequent belt in such an inclined position that the respective elements push the potatoes laterally with respect to the subsequent belt (26) along the conveying direction (38) to a sorting table (28) for conveying the potatoes to the further location (30).
    [11]
    Potato harvester according to claim 9 or 10, characterized in that the subsequent belt (26) is a hedgehog belt so that the further alignment elements (27) further push the potatoes laterally with respect to the subsequent hedgehog belt (26) towards a conveying direction (38) to a sorting table for transporting the potatoes to the further location (30).
    [12]
    Potato harvester according to any one of claims 9 to 11, characterized in that a rotor cam (27) is provided on the subsequent belt (26).
    [13]
    Use of the potato harvester according to any of claims 1-12.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE202013102558U1|2013-10-21|
    EP2674020A1|2013-12-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1992001364A2|1990-07-20|1992-02-06|Logan Farm Equipment Company|Apparatus and method for harvesting agricultural produce|
    US5425459A|1993-08-06|1995-06-20|Ellis; Malcolm P.|Stone separation table for potatoes and other root crops|
    DE19524145A1|1995-07-03|1997-01-09|Davoudi Helga|Potato harvester with haulm separator - has double vertical conveyor with inner narrow mesh rod belt and entrainment belt rotating closely on outside and further wide mesh rod conveyor belt running right round outside of entrainment members|
    DE10107612A1|2001-02-17|2001-08-16|Johannes Welp|Potato harvester has rubber secondary conveyor with studded surface and potato diverting rollers fitted over this which feed potatoes to additional separator|
    BE1014402A3|2001-09-27|2003-10-07|Netagco Avr|Potato harvester.|
    DE102016012245B4|2016-10-14|2018-04-26|Grimme Landmaschinenfabrik Gmbh & Co. Kg|Root crop harvester in the form of a potato harvester|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP12172240.9A|EP2674020A1|2012-06-15|2012-06-15|Potato digger and use thereof|
    EP121722409|2013-06-15|
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