EP4175458A1 - Erntegutbergungseinrichtung - Google Patents
ErntegutbergungseinrichtungInfo
- Publication number
- EP4175458A1 EP4175458A1 EP21834716.9A EP21834716A EP4175458A1 EP 4175458 A1 EP4175458 A1 EP 4175458A1 EP 21834716 A EP21834716 A EP 21834716A EP 4175458 A1 EP4175458 A1 EP 4175458A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conveyor
- harvesting device
- screw
- strip
- fingers
- 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.)
- Pending
Links
- 238000003306 harvesting Methods 0.000 title claims abstract description 43
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 25
- 238000005452 bending Methods 0.000 claims description 15
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000007373 indentation Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 241001124569 Lycaenidae Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000010006 flight Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012384 transportation and delivery Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D61/00—Elevators or conveyors for binders or combines
- A01D61/002—Elevators or conveyors for binders or combines transversal conveying devices
- A01D61/004—Elevators or conveyors for binders or combines transversal conveying devices with cylindrical tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
- B65G65/16—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads with rotary pick-up conveyors
- B65G65/22—Screws
Definitions
- the invention relates to a harvested crop recovery device with a transverse conveyor arranged in a cutterbar, which brings the cut crop together and delivers it into a feed channel through which the harvested crop is transported up to the threshing mechanism of a combine harvester by means of an inclined conveyor, the transverse conveyor being composed of a conveyor screw mounted in a housing Conveyor spirals exist.
- So attachments are known from the prior art, which consist of a frame, an oscillating blade, a receiving table, possibly a reel with a reel drive and a screw conveyor with a screw conveyor drive.
- the harvested crop is cut by the oscillating knife while driving, pushed by a reel over a receiving table to a transport screw, from which a conveyor screw with conveyor spirals brings the cut product together up to the middle and delivers it via a feed channel to an inclined conveyor, from which the conveyed product is transported transported to a threshing mill.
- the auger conveyor spirals, which convey the harvested crop from the left and from the right to in front of the intake channel, usually end in front of the respective edge of the intake channel.
- the disadvantage is that there may be brief interruptions in the flow on the left and right sides in front of the crop elevator or else in the middle of the cutterbar in the intake area, which results in sudden overloads, which then leads to sudden or at least no longer even feeding of the harvested masses to the threshing drum .
- Such always quickly successive overload peaks have a negative effect on the threshing process and the threshing result and also lead to increased fuel consumption by the combine harvester.
- screw conveyors In order to optimize the transport of the crop in the direction of the inclined conveyor, screw conveyors have therefore already been proposed which are provided with a row of retractable and extendable fingers. The fingers are extended in the area in which the material to be cut is to be transported from the conveyor trough into the intake chute or onto the inclined conveyor. Such fingers are described, for example, in EP 1 256 270 B1.
- DE 103 59 398 B3 also discloses a crop harvesting device in which stripping elements are used, which are rigidly fastened, for example, to a trough base below the transverse conveyor device. These stripping elements are arranged symmetrically to the longitudinal center plane of the harvested crop recovery device and extend transversely to the direction of travel. The harvested crop is divided into different batches by these stripping elements, with the aim of making the harvested crop flow more uniform.
- Adjustable stripping elements are sometimes difficult to handle and/or have a complex structure and are prone to failure.
- an even and continuous delivery to the center of the cutterbar, followed by a 90° deflection of both lateral transverse movements, is to be achieved and the replenishment -to the feederhouse- is to be driven and pushed uninterruptedly by the rotary movement of the auger.
- At least one double-bent bar is attached to the lateral surface of the conveyor screw in the area between the ends of the conveyor helix, which is arranged parallel or at least essentially parallel to the longitudinal axis of the conveyor screw, the bar having a rounded or rounded contact surface with a curvature adapted to the surfaces of the conveyor screw, a has a second surface that is angled for this purpose and protrudes from the conveyor screw, and a third end surface that is still angled and has a non-linear end edge.
- Bearing surfaces similar to a rounded shape are understood to be slightly angled bearing surfaces, for example angled by 4° to 10° to the center, which ensure that the bearing surface can sit firmly on the curve of the worm on both sides.
- the end surface can also be curved in cross-section up to the tips of the end edge.
- the second bevel between the second and the third surface can have a large radius of curvature be replaced, if necessary in such a way that this radius of curvature continues into the end surface and up to the tips of the end edge.
- At least one simply bent strip is fastened to the surface of the casing parallel to the longitudinal axis of the conveyor screw, this strip having a rounded contact surface with a curvature adapted to the surface of the conveyor screw and a surface protruding from the conveyor screw that is angled thereto and has a non-linear end edge and with an angle (a + ß) of between 110° and 160° forms a tangent of the conveyor screw surface in the bend area between the rounded contact surface (a) and the second surface (b).
- the second and third surfaces according to the first solution form a single continuous surface whose free end edges have a non-linear profile.
- a number of V-shaped indentations are preferably provided in the non-linear profile. All of the following descriptions refer both to the variant of a twice-folded strip and to the variant of a single-folded strip.
- the non-linear end edges may be, for example, regular profiles composed of isosceles triangles or equal arcs of circles converging to a point, or irregular profiles forming a comb-like irregular jagged profile.
- the distances between the individual peaks of a jagged profile can be up to 10 cm.
- the incisions lying between the profile end tips can reach up to the bending edge or the outer angled end surface or beyond.
- a fourth surface closes the almost perpendicular angle between the first and second surfaces.
- several spaced-apart deflectors made of metal strips or prisms can also be used according to the invention.
- two, four or five (in the case of screws with five rows of multi-fingers) strips can be arranged at equidistant intervals, ie offset by 180° each, followed by offset by 90° or 72°.
- the angle between the middle (second) and the outer (third) surface in relation to the circular path, which the non-linear end edge rotates, is important goes through meaning. This ensures that the slat can be dynamically pulled out of the crop flow without taking material with it when the crop flow is conveyed into the feed channel without interruption.
- the fourth surface that is preferably used prevents any back-discharge of unthreshed ears and grains
- slats inclined by up to ⁇ 12° relative to the longitudinal axis of the conveyor screw also fall within the scope of the present invention.
- the strip is preferably arranged in the area of the conveyor screw surface that is located in front of the intake channel, with the strip extending at most over the width of the intake channel.
- the conveyor spirals preferably end “before” the intake channel opening or the conveyor screws have no conveyor spirals along the width of the opening of the intake channel, with the ends of the opposite conveyor spirals (left and right) being arranged offset by 180° on the conveyor screw.
- a forced feed bar is arranged in the outlet area of each conveyor helix.
- the strips used according to the invention grasp and accept the material for forwarding, to support the pushing movement of the material in the direction of the center of the cutterbar to the intake channel.
- the forced guidance of the harvest strand which previously took place through the auger spiral or which no longer occurs due to the “missing” auger spiral in front of the inclined conveyor intake, is continued by means of the strips according to the invention.
- this feeding and intake and replenishment conveyor system reduces quantities of subsequent deliveries in particular in front of the width of the intake channel or the conveyor trough in front of and below it thus causes an even deflection and forwarding of the clippings over the following conveyor section.
- the third The angled surface avoids unwanted pressure build-up and means that the end of the slat can easily be pulled out of the crop flow during rotation.
- the fourth surface that is preferably used prevents grains from being discharged back.
- the bar or bars can be detachably screwed onto the auger or welded to the surface thereof.
- the height of the bars i.e. the distance between the end edge and the surface of the conveyor screw, is preferably smaller than the height of the conveyor spirals and is at most 75% of the conveyor spiral heights and/or 3 cm to 9 cm. The effect of this is that the shearing force provided by the conveying spirals is not disturbed by the bar, but rather the deflection and deflection from the transverse direction, as well as the equalization of the further distribution of the conveyed goods, is continued and supported.
- the angled second surface adjoining the rounded contact surface forms an angle of between 70° and 120°, preferably of 90° to 100°, with a tangent of the conveyor screw surface.
- the angle between the extension of the second surface and the third surface is preferably selected to be acute, with the sum of the two angles mentioned being between 110° and 160°, preferably at 130° and 135°.
- the non-linear end edge can have any shape, a zigzag profile composed of isosceles triangles preferably being used.
- Alternative possibilities are sinusoidal end edge profiles, sawtooth profiles, profiles that are composed of straight lines and arc-shaped, semicircular profiles or mixed forms of the profiles mentioned.
- the non-linear terminal edge has several incisions on the third angled surface preferably V-shaped incisions, the straight legs of which form an opening angle of 40° to 50°, preferably 47°, the legs ending in a rounded notch in the second surface.
- the legs of the indentations can also consist of bent surfaces which form a smaller angle with respect to the conveying shaft than the opposite upper surface ends of the indentations.
- the length of the bars can be 5 cm to 150 cm - depending on the conveyor helix. If necessary, several shorter strips arranged at a distance next to one another can also be provided instead of a single longer strip.
- a further embodiment of the invention extends a closed sheet over the entire width of the bearing surface and the second surface, a fourth surface, which attaches to the second bending edge (until just below) in order to be guided downwards at an angle for the purpose of connection with the free end edge of the bearing surface.
- This fourth surface, this metal sheet can be fixed in one piece by welding to the respective abutment lines, or it can be made as a part projecting from the support surface, obtained by a third bend, the free end edge of which is fixed by welding to the second bend.
- This metal sheet is arranged at an angle of 25° to 40° with respect to the bearing surface.
- the metal sheet is preferably angled by 25° to 30°, preferably by 28°, in the upper area, the angled part having a length h that is less than 1/5 of the length h of the remaining lower area.
- a plurality of spaced-apart deflectors or deflectors arranged next to one another can alternatively be provided between the support surface and the second surface, each with a have an edge or surface arranged at an acute angle to the support surface and the second surface.
- the deflectors consist of a sheet metal strip or a prism, which rests with two surfaces on the bearing surface and the second surface and whose two other surfaces are arranged at an angle to one another and form an edge, forming an acute-angled wedge.
- the extendable fingers known in principle from the prior art can be attached to the conveyor screw, which are extended as soon as the fingers arrive over the conveyor trough leading to the intake channel in order to push the harvest strand up to the inclined conveyor.
- the folded bar ends in front of the fingers if these are arranged in pairs in a row next to one another, at a distance of between 10 cm and 20 cm. This applies to each of the two strips arranged offset by 180°, which preferably start after the end of the screw spiral.
- four or five rows are used, with two to four fingers arranged in each row.
- the strips according to the invention are provided behind these rows or between two rows.
- a folded strip is mounted in front of each pair of fingers with a width that approximately corresponds to the distance between the fingers of each pair of fingers or is slightly wider.
- Such pairs of fingers can also be arranged offset by an angle of rotation and at a distance from one another on the screw conveyor surface.
- FIG. 2 shows a cross-sectional view of a screw conveyor with a strip screwed on
- FIG. 3 shows a side view of an individual representation of a double-bent strip according to the invention
- Fig. 4a-e a top view of different profiles of the end edge of the strip
- FIG. 5 shows a top view of a screw conveyor with offset finger pairs and associated strips
- FIG. 6a, b another embodiment of a strip according to the invention with an additional sheet and
- a screw conveyor 10 serves as a transverse conveyor for the cuttings coming from a cutting tool 13, the cross-sectional diameter of which is, for example, 40 cm to 70 cm.
- conveyor spirals 11 are provided to the left and right of the intake channel indicated by reference numeral 15, the spirals of which rotate in opposite directions, so that the clippings are transported towards the center by the conveyor spiral arranged on the left and right.
- the two conveyor helices end abruptly in the area of the intake channel, the ends of which are offset by 180°.
- a strip 12, 12' is screwed on, the length of which corresponds approximately to the width D of the feed channel.
- the bar 12 , 12 ′ is thus used for the further forced guidance of the crop strand after it has left the forced guidance by the conveyor helix 11 .
- the screw helix heights can be between 10 cm and 12.5 cm Screw diameters are between 40 cm and 70 cm.
- the auger is rotated in the direction of arrow 18 (see Figure 2) driven by a motor.
- the material that has accumulated between the screw conveyor 10 and the conveyor trough 16 is pushed in the direction of the feed channel indicated in FIG.
- Squeegee strips (not shown) are mounted in the conveyor trough 16 .
- the bar 12 consists of a rounded contact surface a with a curvature that is adapted to the surface of the screw conveyor 10, a second surface b that is angled thereto and protrudes from the screw conveyor by 90°, and a third surface c that is angled at an angle ß of 45° together.
- the sum of the angles ⁇ and ß is 135°.
- the width a is 6 cm, for example, as is the height h at which the end surface 121 protrudes from the surface of the conveyor screw.
- the specified dimension h should be a maximum of 75% of the height of a conveyor spiral.
- Fig. 4a-c different non-linear end edge profiles of the area c of the strip 12 are shown.
- the geometrically simplest shape is a zigzag shape composed of isosceles triangles, the tips of which are about 3.5 cm apart and the distance between the tips and the plates is 2.5 cm.
- the lengths of the respective triangle flanks can be 3.5 cm.
- the distance between the tips can also be selected to be larger.
- FIG. 4b shows sinusoidal end edge shapes or, as indicated in FIG. 4c, such end edges which are composed of straight edge sections and semicircular sections.
- Mixed forms of the design shown in FIGS. 4a, 4b and 4c are also possible, for example in such a way that triangular end edge shapes are used at the ends, sinusoidal end edges in the middle and edge shapes alternating in between according to FIG. 4c.
- the only important thing is that the shape of the trailing edge is not linear.
- 4d shows a strip 12 folded twice, which instead of a curved support surface a (see FIG. 3) has a slightly angled profile a' which, as described, is adjoined by a second surface b and then a third surface c.
- This surface c has successive incisions V ending in vertices Vi equidistant from the next vertex and having branches V2 and V3 forming an angle of 25° to 47° for example, each branch ending in a rounded notch V4.
- the triangular profiles shown in FIG. 4d are uniform and follow one another directly. However, spaced indentations can also be provided, the depth of which extends to the bending edge B between the second surface b and the third surface c or beyond, with rectilinear sections being provided instead of the tips. In Fig. 4e such spaced indentations V are shown, between which linear end edges E are located.
- the notches V can each or individually have incision depths that reach up to the bending edge between the bearing surface and the second surface. Indentations with different incision depths can also be realized within the scope of the invention.
- pairs of fingers 19, 20, 21 are indicated approximately at the level of the intake channel on the screw conveyor, with strips 22-24 spaced apart from them, which have a length slightly greater than the distance between the fingers of a couple is. These short bars are staggered, as are the pairs of fingers. The short bars each follow a row of fingers.
- the screw conveyor shown in FIG. 5 can be driven at a speed of 200 rpm.
- the fingers are each extended automatically when the conveyor screw approaches the conveyor trough 17 .
- the strips 22-24 are mounted in front of the fingers (seen in the direction of rotation), which ensures that the crop running laterally is pushed in continuously in the direction of the feed channel 15.
- 6a and 6b show an alternative embodiment of the strip 12, in which an additional metal sheet d is provided, which is designed to be closed and extends over the entire width of the bearing surface and the second surface. This metal sheet d ends at a distance from the second bending edge B on the one hand and at a distance from the end surface A, which forms a free end edge of the bearing surface a, on the other hand.
- the metal sheet d is arranged at an angle ⁇ of 27° relative to the bearing surface a.
- the upper area of the metal sheet d is angled at an angle ⁇ , the upper angled part with the length h being less than 1/5 of the length l2 of the remaining lower area.
- this metal sheet d can also protrude into the area of the last surface c, with the incisions V also protruding into the metal sheet d.
- Said parts a, b, c and d can also be in one piece, with the respective surfaces a, b, c and d being produced and aligned by appropriate bending.
- the free edge of the sheet metal part d is welded to the surface b at a distance from the bending edge B.
- FIG. 7a A further embodiment variant is shown in FIG. 7a.
- the strip screwed onto the screw conveyor 10 has a bearing surface a and a second surface b, which is adjoined by individual prongs with a curved cross-section, which are illustrated downwards by bending along a bending edge B in the drawing.
- the notches V are of different sizes and can reach just before or up to the bending edge B or, in deep notches, even up to the first bending edge between the bearing surface a and the second surface b.
- the notches V are each rounded in the groove or notch V4.
- deflectors 25 and 26 in the form of sheet metal strips are used, which are each arranged at an acute angle to the bearing surface a and the second surface b. These sheet metal strips minimize the risk that the seed conveyed, which has already been threshed and partially held on the bar, is taken back up on a circular path in front of the feed channel.
- the sheet metal strips 25 or 26 can be rectangular Form surface pieces in which the rectangles, as shown in the case of the metal strips 25, border the short sides on the bearing surface a and the second surface b, whereas in the metal strips 26 the respective longer sides connect to the surfaces a and b mentioned.
- a prismatic deflector 27 with a front edge 271 can also be used, as shown in FIGS. 7b and 7c.
- This preferably rounded edge 271 is formed by the two exposed visible prismatic surfaces 272, 273 arranged obliquely to one another, whereas the other prismatic surfaces bear against the support surface a or the second surface b.
- the deflectors lie side by side, with the notches V being arranged axially symmetrically with respect to the edges 271 .
- the prism surfaces 272, 273 are flat or slightly concave. The notches V form deep incisions and extend almost to the bending edge between the bearing surface a and the second surface b.
- the indentations V can be selected such that the third (bent) surface c consists only of isolated peaks which are directly adjacent to one another or are arranged at a distance from one another, as can be seen in particular from FIG. 7b emerges.
- the distance between the auger conveyor and the conveyor trough 16 is adjustable and can be varied depending on the crop.
- a band or draper cutterbar can also be used, with a compression auger with transport auger spirals above, in front of the intake channel is provided on the bars - improve the crop management - as described above.
- the strips 12, 12' which are preferably arranged diametrically, can also be arranged in a region which is located between the two ends of the coils, which is a position which is offset by 90° in each case compared to the position shown in FIG.
- a end surface of the bearing surface a bearing surface of the bar 12
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020107392.3U DE202020107392U1 (de) | 2020-12-18 | 2020-12-18 | Erntegutbergungseinrichtung |
PCT/DE2021/100992 WO2022127987A1 (de) | 2020-12-18 | 2021-12-10 | Erntegutbergungseinrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4175458A1 true EP4175458A1 (de) | 2023-05-10 |
Family
ID=74565303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21834716.9A Pending EP4175458A1 (de) | 2020-12-18 | 2021-12-10 | Erntegutbergungseinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4175458A1 (de) |
DE (1) | DE202020107392U1 (de) |
WO (1) | WO2022127987A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4170235A (en) * | 1977-11-10 | 1979-10-09 | Massey-Ferguson Industries Limited | Axial flow combine harvester |
DE3842400A1 (de) | 1988-12-16 | 1990-06-21 | Claas Ohg | Selbstfahrender maehdrescher mit geteiltem schneidwerk |
US6093099A (en) * | 1998-10-27 | 2000-07-25 | Groff; Jerry L. | Combine row crop header auger |
US6430904B1 (en) | 2001-05-09 | 2002-08-13 | Deere & Company | Platform auger torque sensing brake activation |
DE10359398B3 (de) | 2003-12-18 | 2005-06-30 | Deere & Company, Moline | Erntegutbergungseinrichtung mit Abstreifelementen |
US9456548B2 (en) * | 2014-02-14 | 2016-10-04 | Deere & Company | Conveyer for a material processing machine |
DE102018105108A1 (de) * | 2018-03-06 | 2019-09-12 | Claas Saulgau Gmbh | Querförderer einer landwirtschaftlichen Erntemaschine |
-
2020
- 2020-12-18 DE DE202020107392.3U patent/DE202020107392U1/de active Active
-
2021
- 2021-12-10 EP EP21834716.9A patent/EP4175458A1/de active Pending
- 2021-12-10 WO PCT/DE2021/100992 patent/WO2022127987A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
DE202020107392U1 (de) | 2021-01-22 |
WO2022127987A1 (de) | 2022-06-23 |
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