巴西专利BR112013024248B1 seed meter

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专利摘要:
SEED METER. The present invention relates to a seed meter for an agricultural planter in which the seed disk is pivotally mounted inside a housing seed meter. As the seed disk rotates, the openings in the disk rotate along a seed opening path through a horizontally adjacent seed cluster area. The seed disk includes cavities arranged along the seed opening path to agitate the seeds in the seed cluster area. An aligner that has multiple coplanar aligner surfaces is oriented against the side seed surface of the seed disk.
公开号:BR112013024248B1
申请号:R112013024248-5
申请日:2012-03-22
公开日:2020-11-10
发明作者:Derek A. Sauder
申请人:Precision Planting Llc；
IPC主号:

专利说明:

CROSS-REFERENCE TO RELATED ORDER (S)
[0001] These applications claim the benefit of Provisional Application No. U.S. 61 / 466,047, filed on March 22, 2011. BACKGROUND
[0002] In recent years, producers of corn and other crops have recognized the importance of planting individual seeds in the appropriate space due to the high prices of agricultural inputs and seed, but also because they are able to monitor the economic impact of lost, double or faulty seeds with the use of modern planter monitors. For these reasons, modern seed meters have been developed that include features that improve seed alignment. However, each feature added increases the amount of time the producer needs to spend replacing wear parts or making other adjustments before or during planting operations. Due to time and other factors, the time available for planting corn and other crops is often extremely limited, with each planter required to cover hundreds of acres although they are limited in speed due to reduced seed meter performance at higher planting speeds.
[0003] Thus, there is a need for a seed meter that has improved alignment and capacity of seed space at higher speeds and that is also easily repairable and modifiable. BRIEF DESCRIPTION OF THE DRAWINGS
[0004] FIG. 1 illustrates a side elevation view of a single row unit of a conventional row planting planter.
[0005] FIG. 2 is a perspective view of an embodiment of a seed meter.
[0006] FIG. 3 is a partial perspective view of an embodiment of a seed meter.
[0007] FIG. 4 is another partial perspective view of an embodiment of a seed meter.
[0008] FIG. 5 is a partial side elevation view of a seed meter embodiment.
[0009] FIG. 6 is another partial perspective view of an embodiment of a seed meter.
[00010] FIG. 7 is another partial perspective view of a seed meter modality.
[00011] FIG. 8 is another side elevation view of a seed meter embodiment.
[00012] FIG. 9 is another side elevation view of a seed meter embodiment.
[00013] FIG. 10 is a partial side elevation view of a seed meter embodiment.
[00014] FIG. 11 is a partial side elevation view of a seed meter embodiment.
[00015] FIG. 12A is a perspective view of an embodiment of an aligner seed and an embodiment of an axial spring.
[00016] FIG. 12B is another perspective view of an embodiment of an aligner seed and an embodiment of an axial spring.
[00017] FIG. 12C is another perspective view of an embodiment of an aligner seed and an embodiment of an axial spring.
[00018] FIG. 12D is another perspective view of an embodiment of an aligner seed and an embodiment of an axial spring.
[00019] FIG. 13A is another perspective view of a seed meter modality.
[00020] FIG. 13B is another partial perspective view of a seed meter modality.
[00021] FIG. 13C is a partial perspective view of a seed meter modality.
[00022] FIG. 14 is a perspective view of a seed disc, vacuum seal and an embodiment of an ejector wheel assembly.
[00023] FIG. 15 is a perspective view of a vacuum cover, a vacuum seal, and an embodiment of an ejector wheel assembly.
[00024] FIG. 16 is a perspective view of a vacuum cover and vacuum seal.
[00025] FIG. 17A is a perspective view of an embodiment of an ejector wheel assembly.
[00026] FIG. 17B is a side elevation view of an ejection wheel assembly embodiment.
[00027] FIG. 18A is a side elevation view of another embodiment of a seed disc and another embodiment of an ejection wheel assembly.
[00028] FIG. 18B is a side elevation view of a seed disc embodiment and an ejector wheel assembly embodiment.
[00029] FIG. 18C is a side elevation view of an ejector wheel modality.
[00030] FIG. 18D is a top view of an ejection wheel modality.
[00031] FIG. 19A is a partial side elevation view of a seed disc modality.
[00032] FIG. 19B is a cross-sectional view of a seed disc along section X-X of FIG. 19A.
[00033] FIG. 19C is a partial perspective view of an embodiment of a seed disk.
[00034] FIG. 20A is a partial side elevation view of another embodiment of a seed disc.
[00035] FIG. 20B is a cross-sectional view of a seed disc along the Y-Y section of FIG. 20A.
[00036] FIG. 20C is a cross-sectional view of a seed disc along section Z-Z of FIG. 20B.
[00037] FIG. 20D is a perspective view of a seed disc modality. DESCRIPTION
[00038] Now, with reference to the drawings, in which similar numerical references designate corresponding or identical parts for all several views, FIG. 1 illustrates a single row unit 10 of a conventional row planting planter. As is well known in the art, row units 10 are mounted spaced along the length of a transverse toolbar 12 by a parallel connection 14 that allows each row unit 10 to move vertically and independently from the bar tools and other row units spaced to accommodate changes in the terrain or under the row unit that encounters a rock or other obstruction as the planter is pulled through the field. Each row unit 10 includes a frame 16 that operably supports a seed hopper 18, a groove opening assembly 20, a seed gauge 100, a seed pipe 46 and a groove closure assembly 50.
[00039] The groove opening assembly 20 comprises a pair of groove opening discs 22 that are pivotally mounted on the shafts 26 attached to a rod 30 that comprises a frame part of the row unit 16. The opening assembly groove 20 further comprises a pair of regulator wheels 32 swivelably supported by the arms of the regulator wheel 35 also attached to the frame 16. As the planter is pulled across the field, the rotating groove opening discs 22 cut a Groove V-shaped 40 through the soil surface 36. The outlet end of the seed tube 46 is arranged between the groove-opening discs that deviate to the side and back 22.
[00040] In operation, as the planter is pulled through the field along the direction of travel as indicated by arrow 38, the seed hopper 18 communicates a constant supply of seeds 42 with the seed meter 100. The seed meter 100 measure or dispense individual or "aligned" seeds 42 at regularly spaced intervals in seed tube 46. Seed tube 46 directs seeds down and back between bypass groove discs 22 before depositing seeds in the groove V-shaped 40. The seeds are then covered with soil by the groove closure assembly 50. A seed sensor 60 detects the passage of seeds through the seed tube 46 as is known in the art. Innovative Seed Metering Modalities
[00041] The modalities of an innovative seed meter 100 are illustrated in FIGs. 2 to 20. With reference to FIGs. 2 and 3, the seed meter 100 includes a housing comprising a vacuum cover 110 and a seed housing 105. As further described here, the seed meter 100 works by selecting a seed at a time from the communicated seeds in the seed housing 105 and dispensing each seed via the seed outlet 180. A vacuum inlet 115 is coupled to the vacuum cover 110. Vacuum tubes or hoses (not shown) connect the vacuum inlet 115 to a source of vacuum. vacuum (not shown) such as a vacuum impeller.
[00042] The seed housing 105 includes hinges 113 (FIG. 3) and tabs 103 (FIG. 2). When fitted, the flaps 103 extend through the holes in the vacuum cover 110 so that the retaining springs 108 can be oriented against the joints 113 and flaps 103 to hold the seed housing 105 in position against the vacuum cover 110 .
[00043] With reference to FIG. 3, the seed meter 100 is shown with the vacuum cover 110 and other components removed by clarity. A shaft 183 is pivotally coupled to bearings 184. Bearings 184 are held in place by vacuum cover 110. A drive plate 186 is coupled to shaft 183 and rotates with it. The drive plate 186 is releasably coupled to a seed disk 120. Seed disk 120 includes openings 122 and preferably includes drive teeth 121. In operation, seed disk 120 can be rotated by a gear drive (not shown) coupled to drive teeth 121 (as further described here) or by a drive shaft (not shown) coupled to an adapter 185 (FIG. 2) mounted on shaft 183.
[00044] Looking at FIG. 4, the interior of the seed housing 105 is shown with the seed disk 120, drive shaft 183 and drive plate 186 removed. A brush 112 is mounted in the seed housing 105 so that its bristles make contact with the side seed surface of the seed disk 120. An aligner 130 is mounted in the seed housing 105 (as further described here) which cooperates with the seed disk 120 for aligning the seeds before they are dispensed through the seed outlet 180. The aligner preferably includes multiple aligner surfaces in contact with a side seed surface 140 of the seed disk 140.
[00045] With reference to FIGs. 5, 6, and 13A-C, the seeds are communicated on the seed meter 100 below a deflector 160 mounted on the seed housing 105. A seed cluster area 150 (FIG. 5) is arranged horizontally adjacent to the seed disk 120 near a bottom end of the seed housing 105 for collecting seeds reported on the seed meter.
[00046] The height of the baffle 160 can be adjusted along the guides 164 and 166. The baffle 160 is mounted in the seed housing 105 by rivet 162, which extends out of the seed housing 105 (as can be better seen in the Figures 9 and 13C) and can be moved vertically by the operator along a notched slot 117 without disassembling the housing. Each notch in slot 117 is sized to hold rivet 162 in place so that the operator can select the height of deflector 160 by pushing the rivet up and down. As illustrated, visual indicators (for example, numbers 1 through 4) are preferably located adjacent to the notches to position the rivet 162 at corresponding heights of the baffle 160 to facilitate reference. Removable floating aligner modes
[00047] With reference to FIGs. 6-8, the aligner 130 is releasably mounted in the seed housing 105 so as to tilt the aligner against the seed disk 120 while allowing the aligner to "float" both axially and longitudinally in relation to the geometric axis of rotation of the disk of seed. The aligner is releasably coupled to an axial spring 137 by fixing fins 139. The axial spring 137 is preferably made of a material (for example, spring steel) that is elastically deformable. The axial spring 137 is mounted on protrusions 142. The protrusions 142 are dimensioned so that the aligner 130 is oriented against the face of the seed disk 120 when the seed disk is in its normal position. Thus, when the seed disk 120 is deflected axially away from the vacuum cover 110, the tension in the axial spring 137 increases, allowing the aligner to remain in contact with the seed disk without interfering with the rotation of the seed disk. Likewise, when the seed disk is deflected axially towards the vacuum cover 110, the tension in the axial spring 137 decreases so that the aligner remains in contact with the seed disk.
[00048] The radial spring 111 is mounted in the seed housing 105 so that in operation, the radial spring tilts the aligner radially against the seed disk 120 when the seed disk is in its normal position.
[00049] With reference to FIGs. 12A-D, the aligner 130 illustrated in detail, is attached to the axial spring 137. Aligner 130 includes base 133, arms 136, upper lobe plate 134 and lower lobe plate 132. Upper lobe plate 134 includes three lobes of alignment, while the lower lobe plate 132 includes two alignment lobes. In operation, the fixing fins 139 secure the base 133. When the axial spring 137 is attached to the aligner 130, the fixing fins 139 extend past and away from the base 133 and are easily manipulated and deflected. It should be noted that other configurations of the aligner 130 could be used to achieve the objectives described here.
[00050] It should be noted that the aligner 130 is easily replaceable with another aligner with a different lobe configuration for different seeds or if it is necessary to replace the singular due to wear on the aligner's lobes. Aligner 130 can be removed by pulling off axial spring 137 with sufficient force that the fixing fins 139 deflect out of each other sufficiently to release the base 133. The fixing fins 139 can also be deflected apart from one another with one hand while pulling the aligner 130 out of the axial spring 137 with the other. Likewise, aligner 130 can be replaced by pressing the aligner base 133 between the fixing fins 139 with enough force to cause the fixing fins to deflect away from each other to allow the aligner base pass between them. To replace the aligner, the base 133 can be pushed between the fins causing them to deflect away from each other before returning to the normal position in which the base of the aligner is retained between the fins. In this way the aligner 130 can be easily removed and replaced manually without using tools and without removing or changing the place of the axial spring 137, which remains in the correct place to tilt the aligner 130 against the seed disk 120 while allowing aligner 130 "floats" with deflections or deformations of the seed disk.
[00051] With reference to FIGs. 10 and 11, the seed meter 100 is illustrated with the seed housing 105 and other components removed so that the aligner 130 can be seen in its preferred location oriented against the side seed surface 140 of the seed disk 120. The surface lateral seed surface 140 is preferably normal with respect to the geometric axis of rotation of the seed disk 120. The lateral seed surface 140 is also preferred and substantially flat with the exception of cavities 128, described in more detail below. For clarity, only the upper and lower lobe plates 132 and 134 are shown in FIG. 11. In operation, the seed disk 120 rotates in the direction indicated by the arrow 129 so that the seed openings 122 move along a seed opening path. A portion of the seed opening path is adjacent to the seed cluster area 150. As the seed openings 122 pass through the seed cluster area 150 at the bottom of the seed housing 105, a vacuum side of each seed opening is placed in fluid communication with the vacuum source so that one or more seeds 42 become entrenched over the openings 122. As the bearing seed openings rotate between the lower and upper lobe plates 132,134, the lobes of the lobe plate they beat, rotate and position the seeds so that only one seed is firmly embedded in the opening while the other seeds fall back into the seed cluster 150, thereby leaving one seed per opening. Then, the openings 122 rotate to the three o'clock position as seen in FIG. 11, the openings 122 are not in communication for a long time with the vacuum source which results in the seeds being released from the openings and falling into the seed outlet 180.
[00052] With reference to FIGs. 14 to 16, the vacuum cover 110 includes a continuous mounting groove in which a vacuum seal 190 is pressure-adjusted. In operation, the vacuum seal 190 is pressed against the vacuum side of the seed disk 120 and the interior of the vacuum seal is in communication with the vacuum inlet 115 (FIG. 1) so that as the openings 122 rotate to the perimeter of the vacuum seal 190 towards its interior they are placed in fluid communication with the vacuum source. Removable seed ejector mounts
[00053] It has been found that partial seeds or seeds can become presented in seed openings 122 and remain there even after the openings 122 pass outside the vacuum seal 190 where no vacuum is imposed. This is undesirable, because when the openings re-enter the seed reservoir, an additional seed may not be embedded in an opening that holds a partial seed or seed. Thus, again with reference to FIGs. 14 to 16, a seed ejector assembly 170 is preferably mounted on the vacuum cover 11110. The seed ejector assembly 170 includes an axle 174, a mounting clamp 172, a lever arm 175 and an ejector wheel 176 that has plungers 177 The ejector wheel 176 is pivotally coupled to the lever arm 175. The lever arm is pivotally coupled to the axle 174. The axle is pivotally received within the mounting clamp 172. As best seen in FIG. 15, the mounting clip 172 is attached to a mounting port 179, which is preferably formed integrally with the vacuum cover 11110. As best seen in FIG. 14, as the seed disk 120 rotates, the ejector wheel 176 turns and the plungers 177 enter each seed opening 122, which drops any seeds, partial seeds or debris into the seed openings on the back or vacuum side of the disk of seed 120.
[00054] As best illustrated in FIGs. 14 and 15, a spring 171 is preferably disposed between lever arm 175 and vacuum cover 11110. Spring 171 has a first end held in place at a first end by a rotary knob 173 on lever arm 175 and has a second end held in place by cavity 192 in vacuum cover 110. It should be noted that spring 171 tilts ejector wheel 176 against the disc and allows the seed ejector assembly 170 to "float" with the deflections or deformations of the seed disc 120.
[00055] It should be noted that the user may want to remove the seed ejector assembly 170 or replace due to wear on the ejector wheel 176, to install a differently configured seed ejector assembly, or for other reasons. As illustrated in FIGs. 16, 17A and 17B, mounting clip 172 can be easily removed and re-attached to mounting port 179 without the use of tools. Mounting door 179 includes openings 196 and a flap 195. Mounting clip 172 includes rigid hooks 197 and resilient hook 198. During installation, the user first inserts rigid hooks 197 into openings 196, then preferably presses on mounting clip 172 against the vacuum cover 110 so that resilient hook 198 deflects around flap 195 and returns to a relaxed state trapped around flap 195. It should be noted that in addition the deflection of resilient hook 198 relative to mounting clip 172, the mounting clip 172 also preferably deflecting to allow the resilient hook 198 to deflect around the flap 195. After fixing, the mounting clip 172 is attached against the mounting door 179 until the user removes the mounting clip folding the mounting clip to release the resilient hook 198 from flap 195 and then move the rigid hooks 197 free of the openings 196. Disc modes and alternative ejection wheel
[00056] Looking at FIGs. 18A-18D, a modified seed ejector assembly 270 is illustrated in cooperation with a modified seed disk 220. Seed disk 220 includes a set 224 of openings 222. Seed disk 220 additionally includes a set 234 of guide cavities 232 The guide cavity assembly 234 is preferential and substantially concentric to the seed opening assembly 224.
[00057] The seed ejector assembly 270 includes a lever arm 275. The lever arm 275 is preferably pivotably oriented towards the seed disk 220 as described herein in relation to lever arm 175. As best illustrated in FIG . 18B, the seed ejector assembly 270 also includes an ejector wheel 276 pivotally mounted on the lever arm 275 and a guide wheel 286 pivotally mounted on the lever arm 275. Continuing to refer to FIG. 18B, the ejector wheel 276 and the guide wheel 286 are preferably pivotally mounted on the lever arm by a retaining pin 272 which terminates through central openings in the ejector wheel and guide wheel. The retaining pin 272 preferably allows the ejector wheel 276 and the guide wheel to translate lightly in the direction and out of the lever arm 275 so that the ejector wheel and guide wheel are free to translate radially towards and out of the center of the seed disk 220. As best illustrated in FIGs. 18C and 18D, the ejector wheel 276 includes radially disposed pistons 278 and the guide wheel 286 includes radially disposed guide tooth 288. The seed ejector assembly preferably includes more guide tooth 288 than pistons 278, and preferably includes three piston guide teeth. The ejector wheel 276 is preferably attached to the guide wheel 286 so that the ejector wheel is forced to rotate synchronously with respect to the guide wheel. Each plunger 278 is preferably aligned with one of the guide teeth 288. For example, as shown in FIG. 18D, the upper and lower pistons 278 are aligned with the upper and lower guide teeth along a plane A1 and the left and right pistons 278 are aligned with the left and right guide teeth along a plane A2.
[00058] In some embodiments of the ejector wheel 276, the plungers 278 include spikes 277. In some embodiments of the seed disc 220, openings 222 are tapered to small openings 223 (FIG. 18A). The tips 277 are preferably dimensioned to fit inside the small openings 223. It should be noted that in such modalities, more precise alignment of the ejector wheel 276 in relation to the seed disk 220 is necessary in order to drop seeds or residues from the small openings 223 without interference between the ejection wheel and the seed disk.
[00059] In operation, as the disc rotates, the guide tooth 288 sequentially engages the guide cavities 232. The plungers 278 sequentially engage the seed openings 222. With reference to FIG. 18A, the guide cavity assembly 234 is aligned with the seed opening assembly 224 so that each seed opening 222 is aligned with a guide cavity 232 along a plane (e.g. plane A3) that intersects with the center of the self-disc 220. It should be noted that the guide tooth 288 engages the guide cavities 232 when the plungers 278 are not engaged with the seed openings 222, thus moving the ejector wheel 286 to the appropriate angular position for engaging each seed opening is successful. Additionally, it should be noted that as the ejector wheel is moved in relation to the retaining pin 272, the guide tooth 232 likewise contains ejector wheel 286 at the appropriate radial distance from the center of the seed disk 220 so that the ejector wheel can engage each seed opening 222 successfully. Seed disk cavities
[00060] With reference to FIGs. 19A-19C, the seed disk 120 preferably includes the seed disk cavity 128 arranged close to the radial edge of the seed disk. The cavities 128 are preferably arranged to pass adjacent the seed cluster area 150. Each cavity 128 is preferably arranged in front of an adjacent seed opening 122 along the direction of travel of the seed opening path. The cavities 128 are preferably arranged between each pair of seed openings 122. Seed openings 122 are preferably and substantially normal with respect to surface 140 of seed disk 120; that is, a central geometric axis of each seed opening 122 is preferably and substantially normal with respect to surface 140 of seed disk 120. The raised surfaces 123 with respect to the bottom of the associated cavity 128 are preferably arranged between each opening 122 and the adjacent cavity 128. The upper surface of the raised surfaces 123 is preferably coplanar with respect to the surface 140 of the seed disk 120.
[00061] Each well 128 preferably comprises a shaking well sized to stir the seeds in the seed cluster area 150. Thus wells 128 are preferably sized to allow significant movement of the seeds 42 in and out of the wells as each well moves. adjacent to the seed cluster 150. The outer perimeter of cavity 128 is preferably larger than the outer perimeter of the adjacent seed opening 122. The area of an intersection between the surface 140 of the seed disk 120 and each cavity 128 is preferably larger than the area of an intersection between surface 140 and each seed opening 122. It should be noted that each seed opening is sized to allow limited movement of the seeds 42 in the seed opening. In addition, cavities 128 are preferably wider than the average size of the seeds 42 to be planted using the seed disk 120. In addition, the depth D (FIG. 19B) of the cavities 128 is preferably greater than 1 mm ( 0.05 inches).
[00062] With reference to FIG. 10 in combination with FIG. 19, each cavity 128 preferably has an inner side wall 242 and an outer side wall 240 located at distances Ri and Ro respectively from the center C (i.e., the rotational or central geometric axis) of the disk. The difference between the radius Ro and Ri is preferably greater than the diameter of the seed openings 122. The radius Ro is preferably greater than the distance between the seed opening and the center of the seed disk 120. The radius Ro is preferably greater than the radius Ra between a distal end of said seed opening 122 and the center of disk 120.
[00063] In operation, as the seed disk 120 rotates through the seed cluster area 150 located on the side of the seed disk (as best illustrated in FIG. 11), the seeds move in and out of the cavities 128 so the seed cluster to be stirred or shaken. This agitation improves the successful loading of the seeds into the seed openings 122, particularly at relatively high planting speeds that correspond to the fastest seed disk rotation speeds.
[00064] Each well 128 preferably includes a side wall 124 oriented towards the seed cluster area 150 as the cavity rotates in the seed cluster area. The side wall 124 is preferential and substantially vertical (FIG. 19B), that is, substantially normal with respect to the surface 140 of the seed disk 120. As seen along the rotational geometric axis of the seed disk (FIG. 19A), the side wall 124 is preferably curved, and is preferably semicircular. In operation, the side walls 124 sequentially enter the seed cluster area 150 and push the seeds so that the seed cluster is stirred and agitated.
[00065] Cavities 128 preferably include a bevel 126 oriented away from the seed cluster as the disk 120 rotates in the seed cluster area 150. An angle A (FIG. 19B) between bevel 126 and the surface 140 of the seed disk Seed 120 is preferably between 15 and 35 degrees from the surface of the disc. In operation, when the seeds are released from the disc (approximately at the three o'clock position as seen in FIG. 11), the seeds occasionally fall towards the disc and into the cavity 128 located below the seed opening 122. In such instances, the seed jumps or slides against bevel 126, smoothly making the seed transition back from cavity 128 and increasing consistency between seed drop times.
[00066] Although a seed disk 120 is disclosed herein including series of seed openings 122 and wells 128 that have the same radial distance from the center of the seed disk, other embodiments include rows of seed wells.
[00067] With reference to FIGs. 20A-20D, an alternate seed disk 320 is illustrated with cavities 328 arranged between seed openings 322. Each cavity 328 preferably includes vertical side walls 324 and bevels 326. Each cavity 328 preferably includes a beveled inner side wall 342 and a side wall beveled outer 340. Beveled side walls 342 and 340 reduce the inner volume of cavity 328 and allow seeds to flow smoothly out of cavity 328 while the seeds are being shaken in the seed cluster area 150. Thus each beveled side wall 342 and 340 discourages seed entrapment in cavities 328, particularly smaller seed varieties.
[00068] Although the various enhancements described here are illustrated in relation to a vacuum type seed meter, they could be equally applicable to other seed alignment meters, including positive air meters such as those disclosed in Patent No. US 4,450,979 for Deckler, hereby incorporated in its entirety as a reference.
[00069] The aforementioned description is presented to enable a person of ordinary skill in the art to manufacture and use the invention and is provided in the context of a patent application and its requirements. Various changes in relation to the preferred mode of the apparatus and the general principles and resources of the system and methods described herein will be readily apparent to those of skill in the art. Thus, the present invention is not limited to the modalities of the apparatus, system and methods described above and illustrated in the figures of the drawing, but is to be in accordance with the largest scope consisting of the spirit and scope of the attached claims.

权利要求:
Claims (13)
[0001]
1. Seed meter (100) for an agricultural planter, comprising: a meter housing that includes a seed housing (105); an entry for communicating seeds in said seed housing (105); a seed cluster area (150) for collecting said seeds near a bottom portion of said seed housing (105); and a seed disk (120, 320) pivotally mounted within the meter housing, wherein said seed disk (120, 320) is arranged horizontally adjacent to the seed cluster area and wherein said seed disk (120, 320) is pivotally mounted within the meter housing, wherein said seed disk (120, 320) has a side seed surface and a plurality of seed openings (122, 322) arranged to rotate around along a seed opening path in a direction of travel, a portion of said seed opening path is adjacent to the seed cluster area (150), said seed disk (120, 320) still having a plurality of cavities spaced adjacent disposed on said lateral seed surface along said path of seed opening, each cavity of said plurality of cavities spaced adjacent (128, 328) is defined by a cavity perimeter, each perimeter of ca greater than an external perimeter of each of said seed openings (122, 322), in which a central geometric axis of each of the seed openings (122, 322) is normal in relation to said lateral seed surface of the said seed disk (120, 320), said central geometric axis of each of said seed openings (122, 322) disposed outside each cavity perimeter; characterized by the fact that: each of said cavity perimeters includes: a bevel (126, 326) facing behind said cavity (128, 328) oriented to be turned away from the seed cluster area (150) according to the seed disk (120, 320) rotates inwardly in the seed cluster area (150), said backward bevel (126, 326) disposed at an acute angle with respect to said lateral seed surface; a vertical side wall (124, 324) facing the front of said cavity (128, 328) oriented to be facing said seed cluster area (150) as the seed disk (120, 320) rotates into the area seed cluster (150); in which, in operation, when a seed is dropped from one of said seed openings (122, 322) while said seed disk (120, 320) rotates, said released seed falls downwardly towards the backward bevel ( 126, 326) of the preceding cavity (128, 328) so that said backward-facing bezel slides said seed released from said preceding cavity (128, 328).
[0002]
2. Seed meter (100) according to claim 1, characterized by the fact that each perimeter of cavities define a shaking cavity sized to allow the seeds in the seed cluster area to move into the shaking cavity , shaking the seeds in the seed cluster area.
[0003]
3. Seed meter (100) according to claim 1, characterized in that a distal end of each of the seed openings (122, 322) is arranged at a first radial distance from a center of the disk seed (120, 320), and each cavity perimeter includes an external side wall (240) disposed at a second radial distance from the center of the seed disk (120, 320), and at which the second radial distance is greater than the first radial distance.
[0004]
4. Seed meter (100) according to claim 3, characterized in that each perimeter of cavities includes an internal side wall (242) disposed at a third radial distance from the center of the seed disk (120, 320), and where the third radial distance is less than the first radial distance.
[0005]
5. Seed meter (100) according to claim 1, characterized by the fact that an area of an intersection between a surface of the seed disk (120, 320) and any one of the plurality of cavities (128, 328 ) is greater than an area of an intersection between said surface of said seed disk (120, 320) and any one of said plurality of seed openings (122, 322).
[0006]
6. Seed meter (100) according to claim 1, characterized in that the seed disk (120, 320) still includes a raised surface (123) disposed between each cavity perimeter.
[0007]
Seed meter (100) according to claim 2, characterized in that the seed disk (120, 320) still includes a raised surface (123) disposed between each cavity perimeter.
[0008]
8. Seed meter (100) according to claim 1, characterized by the fact that each cavity perimeter is more than twice as wide as the seed openings (122, 322) along a plane normal to the seed disk (120, 320), in which said plane intersects with a central geometric axis of the seed disk (120, 320).
[0009]
Seed meter (100) according to claim 1, characterized in that it further comprises: an aligner (130) that has multiple aligner surfaces, where the aligner surfaces are coplanar, the aligner surfaces being come into contact with the lateral seed surface of said seed disk (120, 320), wherein said plurality of seed openings (122, 322) includes at least four seed openings (122, 322), and in which said plurality of cavities (128, 328) includes at least four cavities (128, 328).
[0010]
10. Seed meter (100), according to claim 9, characterized by the fact that the vertical side wall facing forward (124, 324) is curved.
[0011]
11. Seed meter (100) according to claim 9, characterized in that it additionally includes a raised surface (123) disposed between the vertical side wall facing forward (124, 324) and one of the seed openings ( 122, 322).
[0012]
Seed meter (100) according to claim 11, characterized in that the raised surface (123) is substantially coplanar with the lateral seed surface.
[0013]
13. Seed meter (100) according to claim 1, characterized by the fact that each of said cavities (328) additionally comprises a chamfered outer side wall (340), said chamfered outer side wall (340) facing radially inward, and wherein each of said cavities (328) further comprises a chamfered inner side wall (342), said chamfered inner side wall (342) radially outwardly.

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US9351440B2|2016-05-31|

US20200296881A1|2020-09-24|

BR112013024248A2|2016-12-27|

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EP3235360A1|2017-10-25|

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LT2688384T|2017-11-10|

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ZA201307061B|2014-05-28|

AU2019264584B2|2021-01-21|

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US20150305229A1|2015-10-29|

AU2017203083B2|2019-08-15|

WO2012129442A3|2013-04-25|

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法律状态:
2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

2020-03-03| B07A| Technical examination (opinion): publication of technical examination (opinion)|

2020-07-07| B09A| Decision: intention to grant|

2020-11-10| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |

2020-12-01| B17A| Notification of administrative nullity (patentee has 60 days time to reply to this notification)|Free format text: REQUERENTE DA NULIDADE: JIMER RAMOS DA COSTA - 870200147655 - 23/11/2020 |

优先权:

申请号 | 申请日 | 专利标题

US201161466047P| true| 2011-03-22|2011-03-22|

US61/466,047|2011-03-22|

PCT/US2012/030192|WO2012129442A2|2011-03-22|2012-03-22|Seed meter|

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