• 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:
    The present invention relates to a seed meter, comprising: a seed disk having several seed openings, said several seed openings defining a circular trajectory, each of said seed opening having a central axis, the said seed disk dragging seeds from a seed source into each of the plurality of seed openings; and a singulator including a first orientation lobe, said first orientation lobe changing an orientation of said entrained seeds.
    公开号:BR112017009485B1
    申请号:R112017009485-1
    申请日:2015-11-12
    公开日:2021-06-22
    发明作者:Tim Schaefer；Ian Radtke
    申请人:Precision Planting Llc；
    IPC主号:
    专利说明:

    BRIEF DESCRIPTION OF THE DRAWINGS
    [001] Figure 1 is a top view of an agricultural planter modality.
    [002] Figure 2 is a side elevation view of a planter row unit modality.
    [003] Figure 3 is a left side elevation view of the seed meter and seed transporter of another embodiment a planter row unit.
    [004] Figure 4 is a right side elevation view of the planter row unit of figure 3.
    [005] Figure 5 is a perspective view of the seed meter and seed transporter of the planter row unit of figure 3.
    [006] Figure 6 is a perspective view of the seed meter of the planter row unit of Figure 3 having a vent cover removed.
    [007] Figure 7 is a perspective view of the seed meter of the planter row unit of Figure 3 showing a seed inlet.
    [008] Figure 8 is a perspective view of the seed meter of the planter row unit of Figure 3 showing a seed inlet with the seed inlet housing removed.
    [009] Figure 9 is a perspective view of the seed meter of the planter row unit of figure 3 showing an adjustable seed meter deflector.
    [0010] Figure 10 is a perspective view of the seed meter of the planter row unit of figure 3 showing the adjustable seed meter deflector with the side seed housing of the seed meter removed.
    [0011] Figure 11 is a side elevation view of the aligner and seed disk of figure 3.
    [0012] Figure 12 is a descending perspective view of the aligner and seed disk of figure 3.
    [0013] Figure 13 is an ascending perspective view of the aligner and seed disk of figure 3.
    [0014] Figure 14 illustrates a mode and a monitoring and control system.
    [0015] Figure 15 illustrates an embodiment of a seed meter including a pivoting flap. DESCRIPTION
    [0016] Referring now to the drawings, in which like reference numerals designate identical or corresponding parts throughout the plurality of views, Figure 1 illustrates a tractor 5 dragging an agricultural implement, for example a planter 10, comprising a toolbar 14 operatively supporting multiple row units 200. An implement display 50 preferably includes a central processing unit ("CPU"), memory, and graphical user interface ("GUI") (e.g., a touch screen interface) is preferably located in the cab of tractor 5. A global positioning system ("GPS") receiver 52 is preferably mounted on tractor 5.
    [0017] Returning to Figure 2, an embodiment is illustrated in which the row unit 200 is a planter row unit. Row unit 200 is preferably pivotally connected to tool bar 14 by a parallel connection 216. An actuator 218 is preferably arranged to apply lifting and/or falling force to row unit 200. downward force 1490 (e.g., a pressure control valve such as a pressure reduce/relieve valve) is preferably in fluid communication with actuator 218 to modify the lift and/or fall force applied by actuator 218. An opening system 234 preferably includes two opening discs 244 mounted rollingly on a downwardly extending rod 254 and arranged to open a v-shaped trench 38 in the ground 40. A pair of gauge wheels 248 are so supported pivotable by a pair of matching gauge wheel arms 260; the height of gauge wheels 248 relative to open discs 244 determines the depth of trench 38. A depth adjustment rocker arm 268 limits upward displacement of gauge wheel arms 260 and thus upward displacement of gauge wheels 248. An actuator depth adjustment dial 1480 is preferably configured to modify a position of depth adjustment rocker arm 269 and thus the height of gauge wheels 248. Actuator 1480 is preferably a linear actuator mounted on row unit 00 and pivotally coupled to an upper end of the rocker arm 268. In some embodiments, the depth adjustment actuator 1480 comprises a device such as that described in International Patent Application No. PCT/US2012/035585 (the "'585 application"), the description of which is incorporated herein by reference. An encoder 1482 is preferably configured to generate a signal related to the linear extent of actuator 380; it should be appreciated that the linear extent of actuator 1480 is related to the depth of trench 38 when gauge wheel arms 260 are in contact with rocker arm 268. A down force sensor 1492 is preferably configured to generate a related signal with the amount of force imposed by the gauge wheels 248 on the ground 40; in some embodiments, downforce sensor 1492 comprises an instrumented pin around which rocker arm 268 is pivotally coupled to row unit 200, such as those instrumented pins described in US Patent Application No. 12/522,253 of Applicant (Pub. No. US 2010/0180695), the description of which is incorporated herein by reference.
    [0018] Continuing with reference to Figure 2, a seed meter 300 is preferably arranged to deposit seed 42 from a hopper 226 into trench 38. The seed meter 300 is preferably a seed meter of the type vacuum having principles of operation common with the seed meter modalities as described in International Patent Application No. PCT/US2012/030192, the description of which is incorporated herein by reference. Although in some embodiments, the seed meter can deposit seeds into the trench 38 directly or via a seed tube, the seed meter 300 preferably measures the seeds in a seed transporter 400, the seed transporter is preferably configured to transport seed from the seed meter to the trench at a controlled rate of speed as described in US Patent Application Serial No. 14/347,902 and/or US Patent No. 8,789,482, both of which are incorporated by reference herein. In some embodiments, seed meter 300 is driven by a meter driver 1415 configured to drive a seed disk within the seed meter. In other embodiments, drive 1415 (e.g., an optical or electromagnetic sensor configured to generate a signal indicating the passage of a seed) is preferably mounted on seed tube 232 and arranged to send light or electromagnetic waves through the seed path. 4. A closure system 236 including one or more closure wheels is pivotally coupled to row unit 200 and configured to close trench 38.
    [0019] Returning to Figure 14, a planter control and soil monitoring system 1400 is illustrated schematically. Monitor 50 is preferably in data communication with components associated with each row unit 200 including drives 1415, seed sensors 1405, GPS receiver 52, down force sensors 1492, valves 1490, seed actuators. 1480 depth adjustment, 1482 depth actuator encoders, and 1485 depth sensors configured to measure the actual depth of the trench opened by row unit 200. Where a seed transporter is used to transport seed from seed gauge 300 to the trench , monitor 50 is preferably in communication with conveyor drives 1410 configured to drive each seed conveyor.
    [0020] Continuing with reference to Figure 14, monitor 50 is preferably in data communication with a communication module 1430 (e.g., a cellular modem, wireless receiver, or other component configured to place monitor 50 in data communication with the Internet, indicated by reference numeral 1435, or other network or computer). Through communication module 1420, monitor 50 preferably receives data from and transmits data to a weather data server 1440, soil data server 1445, and an agricultural recommendation server 1450. Through communication module 1430, monitor 50 preferably transmits measurement data (eg measurements described here) to recommendation server 1450 for storage and receives agronomic recommendations (eg planting recommendations such as planting depth, whether to plant, which fields to plant, which seed to plant, or which crop to plant) from a recommendation system stored in the recommendation server; in some modalities, the recommendation system updates planting recommendations based on the measurement data provided by monitor 50.
    [0021] Continuing to refer to Figure 14, the monitor 50 is also preferably in data communication with one or more temperature sensors 960 mounted on the planter 10 and configured to generate a signal related to the temperature of the soil being worked by planter row units 200. Display 50 preferably is in data communication with one or more soil reflectivity sensors being worked by planter row units 200.
    [0022] Referring to figure 14, the monitor 50 preferably is in data communication with one or more electrical conductivity sensors 970 mounted on the planter 10 and configured to generate a signal related to the temperature of the soil being worked by the 200 planter row units.
    [0023] In some embodiments, each sensor array 950, 960, 970 comprises a sensor array 900 associated with a single-row unit 200; sensor array 900 can be mounted on a seed firmer 500, described elsewhere here.
    [0024] In some embodiments, a subset of the sensors on the implement are in data communication with the monitor 50 via a bus 60 (eg, a controller area network or "CAN" bus). In some embodiments, the sensors mounted on the seed firm 400 and the reference sensor mounting 1800 are also in data communication with the monitor 50 via bus 60. However, in the embodiment illustrated in Figure 14, the sensor array 900 is in data communication with a wireless transmitter 62. The wireless transmitters 62 in each row unit are preferably in data communication with one or more wireless receivers 64 which in turn are in data communication with monitor 50. Wireless receivers 64 can be mounted on toolbar 14 or tractor cable 5.
    [0025] Returning to Figures 3-5, a part of an exemplary row unit 200 comprising a seed meter 300 and seed carrier 400 is illustrated. In operation, seed meter 300 receives seed from a seed source, eg, a hopper 320, and singles out the seed (ie, deposits one seed at a time) into seed transporter 400. Seed transporter 400 then transports seed (preferably at a controlled rate directly related to the speed of the row unit 200) to the trench and deposits the seed with the speed backwards with respect to the row unit; the magnitude of the backward velocity is preferably related to and/or approximately the same as the forward velocity of the row unit so that the seed released has a horizontal velocity with respect to the ground, from zero to approximately zero. In some modalities, a seed firmer 500 is willing to firm seeds deposited in the trench; the speed firming preferably also includes a liquid conduit for dispensing liquid close to the deposited seed. In some embodiments, a cap 290 is mounted to a lower portion of the shank 254. The cap preferably includes transverse protectors disposed on the left and right sides of a lower portion of the conveyor 400 to protect the seed conveyor 400 from contact with the seed disks. opening 244. The cross guards preferably include portions made of a hard material (eg, tungsten carbide) facing the interior surfaces of the opening disks 244. The cover preferably includes a ditch guard disposed below the underside of the conveyor 400 and configured to protect conveyor 400 from contact with the trench. The trench protector preferably includes a part or parts made of a hard material (eg tungsten carbide) facing the trench.
    [0026] Seed conveyor 400 is preferably a spring mounted to the row unit by a spring 440 which preferably directs the speed conveyor upwardly into engagement with seed meter 300. Seed meter 300 is preferably pivotally mounted on pivots 318 on row unit 00 by means of a clamp 316. In an installation phase, seed gauge 300 is preferably angled clockwise (in the view of figure 3) around pivots 318 at engagement with seed transporter 400. Once seed meter 300 is engaged with seed transporter 400, the user preferably engages a mounting portion 280 of the row unit on seed meter 300; in the illustrated embodiment, the mounting portion includes a pivoting pawl 282 which locks a hook 284 into engagement with a mounting opening 314 in a frame 310 of the seed meter. Mounting portion 280 is preferably mounted to the row unit frame by a screw 286 and in some embodiments also secures spring 440 to the row unit frame.
    [0027] Seed meter 300 preferably includes a side vacuum housing 330 releasably mounted in a side seed housing 340. Side seed housing 340 and side vacuum housing 330 are preferably releasably mounted in frame 310, for example, by engaging a weapon 348 of the seed side housing to a deflected mounting tab 318 secured to frame 310. Side vacuum housing 330 preferably includes a vacuum inlet 332 placing the interior of the side housing on vacuum in fluid communication with a vacuum source, (e.g., an impeller) that draws a vacuum against a portion of a seed disk 370. The side seed housing preferably receives seed from the hopper 320 having a lid 322. In embodiments, seed is communicated by air pressure to hopper 320 from a bulk tank (eg, mounted on planter toolbar 14) via the seed inlet 350. Returning to Figures 7 and 8, the seed enters the seed inlet 350 through an opening 352. The opening 352 is preferably releasably coupled to a seed supply hose (not shown ) via a quick-connect structure allowing the user to twist a hose coupling to alternately release or lock the hose in fluid communication with inlet 350. Seed and air entering inlet 352 pass into hopper 320 through an inclined conduit 358 having a plurality of vent openings 357 extending partially along the length of the duct. As duct 358 fills with seed, vent openings 357 preferably become blocked by seed so that air flow to inlet 350 becomes sluggish; once the duct is filled with seed so that the vent openings 357 are blocked, all or substantially all of the air and seed flow to the inlet 350 is stopped. Conduit 358 is preferably protected from atmospheric rain, moisture and debris by a hood 354. Air that escapes duct 358 in hood 354 preferably escapes to atmosphere through one or more vent openings (eg, slats) 355 formed in cap 354. Additionally, air which escapes duct 358 in cap 354 preferably escapes through one or more vent openings (e.g., slats) 15 leading through structure 310.
    [0028] Returning to Figures 9 and 10, the seed collected in the hopper 320 preferably enters the side seed housing 340 of the seed meter 300 via a seed inlet 344. The size of the seed inlet 344 is preference determined by the vertical position of a deflector 362. In the illustrated embodiment, the user is permitted to adjust the vertical position of bulkhead 362 by vertically adjusting the position of a peg 363 in a series of notches 364 formed in the side seed housing 340. preferably flows by gravity in the side seed housing 340 along an inclined surface 343. The inclined surface 343 preferably guides the seed to the bottom of the side seed housing so that a seed pool forms near the bottom of a disk. of seed 370 in the side seed pocket. Meter drive 1415 preferably drives seed disk 370 by clockwise rotation (in the view of Figure 11) by means of a set of radially disposed gear teeth 375 formed on a circumferential edge of seed disk 370 cooperating with corresponding gear teeth (not shown) of the meter drive 1415. The vacuum is preferably imposed from the vacuum side on a portion of the seed disk 370 so that the seed openings 372 in the region extend clockwise ( in the view of figure 11) from approximately 6 hours to approximately 3 hours so that the seeds are held in an opening 372 as it passes the seed pool in approximately 6 hours and released in approximately 3 hours.
    [0029] Referring to Figure 9, it should be appreciated that imposing a vacuum on the seed openings 372 tends to draw air from the seed side housing 340 into the vacuum side housing 330. Thus, a plurality of vents 345 are preferably provided in the side seed housing 340 such that atmospheric air enters the side seed housing 340. In the illustrated embodiment, the vents 345 comprise laterally extending slats disposed radially in an upper portion of the side seed housing 340. Returning to Figure 9, vents 345 are preferably in fluid communication with the inner volume of a cap 312 having downwardly facing vent openings 313. Vent openings 313 are preferably disposed vertically above the side vacuum housing 330 and preferably on the side of the housing side vacuum. In operation, air enters the vent openings 313 in the inner volume of the cap 312 and then enters the seed side housing 340 via the vents 345. The vent openings 313 preferably extend approximately the longitudinal length (i.e., direction displacement) of the side seed housings 340. The cover 312 preferably protects the vent openings 313 from atmospheric rain, moisture, and debris. Referring to Figure 6, the inner volume of the cap 354 preferably supplies air to the inner volume of the cap 312 via vents 315.
    [0030] A singulator 380 is preferably arranged to remove all but one seed from each seed opening 372. The singulator 380 is preferably supported by an axial spring that allows the singulator to float axially with axial movement of the seed disk 370 as described in US Patent No. 7,699,0909 ("the '009 patent"), the entirety of which is incorporated herein by reference. Singulator 380 preferably is supported by a radial spring which allows the singulator to float radially with radial movement of seed disk 370 as described in the '009 patent. Singulator 380 preferably includes a plurality of outer lobes 382a, 382b, 382c, arranged to partially pass over the seed openings such that one or more seeds in a seed opening 372 are contacted and moved radially inwardly when the seed opening. seeds passes each lobe. Singulator 380 preferably includes a plurality of inner lobes 384a, 384b arranged to partially pass over the seed openings so that one or more seeds in a seed opening 372 are contacted and moved radially outward as the seed opening passes each lobe. Each lobe 382, 384 preferably has an arcuate chamfered surface adjacent the seed openings 372 so that seeds passing the lobe are gradually moved from a first radial position to a second radial position. The arcuate chamfered surface of lobes 382, 384 preferably lifts the seeds slightly from the surface of disc 370.
    [0031] Referring to Figures 11-13, the seed meter 300 preferably additionally includes an external seed guidance guide 383, and an internal seed guidance guide 38. In operation, the seed guidance guides 383 , 386 preferably change the orientation of a seed about a tangential axis to the circular path of the seed on the seed disk (a "tangential axis"). Seed Orientation Guides 383, 386 are preferably configured to reorient the seed about a tangential axis without lifting the seed from the surface of seed disk 370. In a preferred embodiment, guides 383, 386 do not overlap the openings. seeds 372; in other embodiments, guide 383 slightly overlaps seed openings 372. In a preferred embodiment, seed orienting guide 383 rotates seed about a tangential axis in a first direction (e.g., counterclockwise along from a view opposite the seed tangential velocity vector) and the seed guidance guide 386 rotates the seed about a tangential axis in a second direction (eg, clockwise along a view opposite the tangential velocity vector of the seed).
    [0032] In the illustrated embodiment, the guides 383, 386 are mounted on the singulator 380. The outer guide 383 is attached to (e.g., formed as a part with) the outer lobe 382c. Inner guide 386 is secured to inner lobe 384b by arm 385; inner guide 386 is preferably angularly spaced clockwise (in the view of Figure 11) from outer guide 383 by an angular offset approximately the same as an angular offset between inner lobe 384b and outer lobe 382c. It should be appreciated that because the guides 383, 386 are attached to the singulator 380, the guides are allowed to float with the singulator to retain a consistent radial and axial position with respect to the seed disk seed trajectory 370. guides 383, 386 can be mounted separately from singulator 380.
    [0033] Returning to Figure 13, guide 383 preferably includes a chamfered surface 1320 having a seed disk angle relative to the seed disk surface 370. The seed disk angle preferably increases continuously in a clockwise direction of so that the seeds are reoriented by contacting the chamfered surface 1320 when the seeds pass guide 383 in the clockwise direction. A chamfered surface 1310 preferably is disposed between lobe 382c and chamfered surface 1320. Chamfered surface 1310 preferably continuously guides seed contacting lobe 382c to contact chamfered surface 1320. Guide 383 preferably further includes a axial surface 1330 preferably arranged clockwise from the chamfered surface 1320. Axial surface 1330 preferably extends clockwise along the seed path so that seeds passing the axial surface 1330 in a clockwise direction contact the axial surface 1330 and remain radially inward from axial surface 1330. In some embodiments, axial surface 1330 is disposed at or radially outward from a radially outward end of the seed openings; in other embodiments, axial surface 1330 is disposed radially inwardly from the radially outward end of the seed openings and radially outwardly from the center of the seed openings.
    [0034] Returning to Figure 12, guide 386 preferably includes a chamfered surface 1220 having a seed disk angle relative to the seed disk surface 370. The seed disk angle preferably increases continuously in a clockwise direction of so that the seeds are reoriented by contacting the chamfered surface 1220 when the seeds pass guide 386 in a clockwise direction. Guide 386 preferably further includes an axial surface 1230, preferably disposed clockwise from the chamfered surface 1220. Axial surface 1230 preferably extends clockwise along the path of seeds passing the axial surface 1230 in a clockwise direction. contact axial surface 1230 and remain radially inwardly of axial surface 1230. In some embodiments, axial surface 1230 is disposed at or radially inwardly from a radially inward end of the seed openings; in other embodiments, axial surface 1230 is disposed radially outward from the radially inward end of the seed openings and radially inward from the center of the seed openings.
    [0035] In operation, after a seed has been reoriented by guides 383, 386, the seed preferably continues to move clockwise (in the view of Figure 11) to the seed carrier 400. The seed is preferably grasped between two loading wheels 432, 434 at or near the vacuum release location from the loading seed disk 370. After being reoriented by guides 383, 386, the seed is preferably oriented for improved introduction into the space between the loading wheels 432, 434 compared to the original seed orientation. For example, in the case of flat seeds, guides 383, 386 preferably orient the seed so that the seed is gripped around its smaller width by the loading wheels; for example, with the longest width of the seed perpendicular to the seed disk 370. The seed is then preferably driven by the loading wheels 432, 434 to the belt 420 of the seed conveyor 400. The belt 420 then conveys the seed downwards to the ditch. Transport Seed Tab Modalities
    [0036] Returning to figure 15, a 300’ seed meter is illustrated. The alternative 300’ seed meter is preferably generally similar to the 300 seed meter except as described here. Seed meter 300' preferably includes a generally vertical brush 150 and an upper slanted brush 1510. A tab 1520 is preferably pivotally connected to a lower end of the upper slanted brush 1510, preferably around a hinge. In the orientation of Figure 15, the gauge is arranged at an angle with respect to the direction of gravity G so that the tab 1520 falls into a first position in contact with the vertical brush 1530. Thus, in the orientation of Figure 15, the brush 1510 , tab 1520 and brush 1530 preferably cooperate with the seed disk (not shown in Figure 15) to retain seeds in the seed pool area of the seed side housing 340'. Furthermore, in the orientation of Figure 15, the tab 1520 and brushes 1510, 1530 preferably cooperate to prevent seeds from entering the output chute area E of the seed side housing (or in seed meter arrangements in engagement with a seed transporter, to contact or be introduced into the seed transporter). It should be appreciated that in planter arrangements where the row unit 200 is slanted about a horizontal axis for transport, the seed meter 300' may transition to the slanted orientation of Figure 15 when the row unit is in the position of transport. When the row unit 200 is rotated back to the working position, the seed meter 300' is returned to the working orientation as shown in figure 3 and the tab 1520 preferably rotates under the influence of gravity G. In the second In position, the flap preferably allows the seeds to fall vertically from an upper part of the meter (for example, after being removed from the seed disk by the singulator 380') and pass between brushes 1510, 1530 and back into the area. of seed pool P from side seed housing 340'.
    [0037] The foregoing description is presented to enable one skilled in the art to make and use the invention, and is provided in the context of a patent application and its requirements. A plurality of modifications to the preferred embodiment of the apparatus, and the general principles and aspects of the system and methods described herein will be readily apparent to those skilled in the art. Thus, the present guidance is not limited to the modalities of apparatus, system and methods described above and illustrated in the drawing figures, but should be in accord with the broadest scope consistent with the spirit and scope of the appended claims.
    权利要求:
    Claims (9)
    [0001]
    1. Seed meter (300), comprising: a seed disk (370) rotating in a direction of rotation, said seed disk having a surface with a plurality of seed openings (372), said plurality of openings (372) defining a circular path as said seed disk (370) rotates in said direction of rotation, each of said plurality of seed openings (372) having a central axis, said plurality of seed openings ( 372) dragging seeds from a seed source (320) as said seed disk (370) rotates in said direction of rotation; and a singulator (380) disposed along said circular path, said singulator (380) including: a first plurality of outer lobes (382a, 382b, 382c) arranged to partially pass over the seed openings (372) so that one or more of said seeds entrained in a seed opening (372) are contacted and moved radially inward as the seed opening passes each of the plurality of outer lobes (382a, 382b, 382c); and a plurality of inner lobes (384a, 384b) arranged to partially pass over the seed openings (372) so that one or more of said seeds entrained in a seed opening (372) are contacted and moved radially outwardly as the seed opening passes each of the plurality of inner lobes (384a, 384b); characterized by the fact that the seed meter (300) further comprises: internal and external guidance guides (383, 386) located downstream of said external lobes (382a, 382b, 382c) along said circular path and arranged to change an orientation of each of said entrained seeds about an axis tangential to said circular path when said entrained seeds rotate past said internal and external orientation guides (383, 386) along said circular path.
    [0002]
    2. Seed meter (300) according to claim 1, characterized in that the internal and external seed guidance guides (383, 386) do not overlap the seed openings (372).
    [0003]
    3. Seed meter (300) according to claim 1, characterized in that each of said inner and outer lobes (382a, 382b, 382c, 384a, 384b) comprise an arcuate beveled surface disposed adjacent to said openings of seed (372) on said circular path.
    [0004]
    4. Seed meter (300) according to claim 1, characterized in that it further comprises: a beveled surface (1310) adjacent to said circular path, wherein said bevelled surface (1310) is disposed upstream of the said circular path from an orientation surface (1320).
    [0005]
    5. Seed meter (300) according to claim 4, characterized in that said chamfered surface (1310) has a seed disk angle with respect to said surface of said seed disk (370), and wherein said seed disk angle continuously increases along said circular path.
    [0006]
    6. Seed meter (300) according to claim 1, characterized in that it further comprises: a seed conveyor (400), said seed conveyor (400) arranged to receive said seeds dragged from said disc of seed (370), said seed transporter (400) transporting seed at a controlled rate to a planting ditch below said seed meter (300).
    [0007]
    7. Seed meter (300) according to claim 1, characterized in that said singulator (380) is disposed adjacent to said circular path, said singulator (380) comprising a first lobe arranged to remove excess of seed from a first of said plurality of seed openings (372), and a second lobe arranged to contact a remaining seed, said seed remaining in said first of said plurality of seed openings (372) after passing the first said lobe, the seed meter (300) further comprises: a seed conveyor (400), said seed conveyor (400) arranged to receive said seed entrained from said seed disk (370), said seed conveyor ( 400) comprising: a conveyor belt (420) arranged to transport seeds from said seed disk (370); and a first loading wheel (432) and a second loading wheel (434) configured to grasp seeds released by said seed disk (370) and direct said released seed toward said conveyor belt (420), said first loading wheel (432) rotating about a first axis, said second loading wheel (434) rotating about a second axis, wherein said released seeds are gripped in a space between said first and second loading wheels. loading (432, 434), said space having a width along the space axis, said space axis being normal to said first axis and said second axis, said space axis intersecting said first axis and said second axis.
    [0008]
    8. Seed meter (300) according to claim 1, characterized in that the outer seed guidance guide (383) includes a chamfered surface (1320) having a disc angle with respect to the seed disk surface (370), wherein the seed disk angle continuously increases along the circular path, and wherein an additional chamfered surface (1310) is disposed between the plurality of outer lobes (382a, 382b, 382c) and the chamfered surface (1320), and an axial surface (1330) is disposed downstream of the chamfered surface (1320) and extends along the seed path so that seeds passing the axial surface (1330), they come into contact with the axial surface (1330) and remain radially into the axial surface (1330).
    [0009]
    9. Seed meter (300) according to claim 1, characterized in that the inner seed guidance guide (386) includes a chamfered surface (1220) having a seed disk angle with respect to the surface of the seed. seed disk (370), wherein said seed disk angle continuously increases along the circular path, and an axial surface (1230) disposed downstream of the chamfered surface (1220) and extending along the circular path. seed, such that seeds passing the axial surface (1230) contact the axial surface (1230) and remain radially inward on the axial surface (1230).
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    US20170245420A1|2017-08-31|
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    法律状态:
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-04-06| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-22| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/11/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    2022-01-18| 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 - 870210116271 - 15/12/2021 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201462078778P| true| 2014-11-12|2014-11-12|
    US62/078,778|2014-11-12|
    PCT/US2015/060485|WO2016077651A1|2014-11-12|2015-11-12|Seed planting apparatus, systems and methods|
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