• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    patent summary of invention: "systems, methods and devices for closing agricultural trenches". it is a closing wheel set for a row planting agricultural planter. the planter is configured to open a ditch in the soil and the closing wheel assembly is configured to close the ditch. a resilient flap is provided to secure and level the soil returned to the ditch by the closing wheel assembly. rotating mounted displaced closing wheels are also provided.
    公开号:BR112015009089B1
    申请号:R112015009089
    申请日:2013-10-24
    公开日:2020-02-04
    发明作者:Muhlbauer Cory；Sauder Derek；Hodel Jeremy
    申请人:Prec Planting Llc；
    IPC主号:
    专利说明:

    Descriptive Report of the Invention Patent for AGRICULTURAL LINE UNIT.
    BACKGROUND [001] In recent years, increasing operational farm sizes and time constraints caused by field and climate conditions have increased the need to carry out planting operations at higher speeds. However, in fact creating a suitable environment for seeds at high speeds is problematic, particularly in humid or high-waste conditions. Clogging of the apparatus used to close the ditch is a particular problem, as is the failure to return and level the soil displaced to the planting ditch. Therefore, there is a need for a system, apparatus and methods of ditch closure, which provides an effective closure of the planting ditch.
    DESCRIPTION OF THE DRAWINGS [002] Figure 1 is an elevation view on the right side of an agricultural line unit modality.
    [003] Figure 2 is a right-side elevation of an embodiment of a closing wheel assembly mounted to the line unit of Figure 1.
    [004] Figure 3 is an elevation view on the right side of the closing wheel assembly of Figure 2 with a right closing wheel not shown for clarity.
    [005] Figure 4 is a top view of the closing wheel assembly of Figure 2.
    [006] Figure 5 is a rear view of the closing wheel assembly in Figure 2.
    [007] Figure 6 is a perspective view of the closing wheel assembly of Figure 2 with the closing wheels being removed for clarity.
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    2/18 [008] Figure 7 is a bottom view of a pivot arm of the closing wheel assembly of Figure 2.
    [009] Figure 8 is a bottom view of a flap of the closing wheel assembly of Figure 2.
    [0010] Figure 9A schematically illustrates a modality of a closing wheel control system.
    [0011] Figure 9B schematically illustrates another modality of a closing wheel control system.
    [0012] Figure 9C schematically illustrates yet another modality of a closing wheel control system.
    [0013] Figure 10A is an elevation view on the right side of another modality of a closing wheel assembly.
    [0014] Figure 10B is a perspective view of the closing wheel assembly of Figure 10A.
    [0015] Figure 11 is an elevation view on the right side of a modality of a closing set including a modality of a closing wheel and a right closing wheel is not shown for clarity.
    [0016] Figure 12 is an elevation view on the right side of the closing assembly of Figure 11 with the right closing wheel being shown.
    [0017] Figure 13 is a rear elevation view of the closure assembly of Figure 11 with certain components not shown for clarity.
    [0018] Figure 14 is a rear elevation view of another embodiment of a closing wheel assembly with certain components not shown for clarity.
    [0019] Figure 15 illustrates an embodiment of a process for controlling downward pressure in a closing wheel assembly.
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    3/18
    DESCRIPTION [0020] Referring to the drawings, where similar reference numbers designate corresponding or identical parts in the course of the various views, Figure 1 illustrates an agricultural planter, comprising a toolbar (not shown) to which multiple units of line 10 are mounted in a spaced crosswise manner. The line unit 10 preferably comprises a unit of line arrangements disclosed in Provisional Patent Application of the same applicant No. US 61/718051 (the Order '051), which description is hereinafter incorporated into this document in its entirety by way of reference. Each line unit 10 is preferably mounted to the toolbar via a parallel arm arrangement (not shown) in order to allow the line unit to move vertically in relation to the toolbar.
    [0021] Line unit 10 preferably includes a frame
    14. The line unit 10 preferably includes a set of opening discs 18 including two tilted discs mounted in a rollable manner to the frame 14 and arranged to open a v-shaped trench in the ground as the line unit travels across a field. The line unit 10 preferably includes a measuring wheel assembly 16 including two measuring wheels pivotally mounted on both sides of the frame 14 (via two measuring wheel arms 17 on both sides of the frame 14) and arranged to rotate along the soil surface, thereby limiting the depth of the open trench by the set of opening discs 18. A closing set 100 is preferably pivotally coupled to the frame 14 and configured to move the displaced soil back into the trench 3 as described in more detail in this document.
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    4/18 [0022] Still referring to Figure 1, seeds 5 are communicated from a distributor 12 to a seed meter 30 preferably configured to standardize the seeds provided. The meter 30 is preferably a vacuum type meter such as that disclosed in International Patent copending application of the same Assignee No. PCT / US2012 / 030192 (Pub. No. WO / 2012/129442), the disclosure of which is incorporated herein as a reference in its entirety. In operation, the seed meter 30 the seed deposited preferably provided in a seed carrier 20 as one of the disclosed embodiments conveyor seeds in copending International Patent Application No. Depositor
    PCT / US2012 / 57327, the description of which is incorporated in this document for reference in its entirety, The seed conveyor 20 is preferably removably mounted to the frame 14 and preferably transports the seeds 5 deposited by the meter 30 at a lower end of the seed carrier and deposits seeds in ditch 3. As revealed in Order 051, in some embodiments, the seed carrier 20 is replaced with a seed tube. In such modalities, the seeds deposited by the meter 30 fall through the seed tube in the ditch 3.
    CLOSING WHEEL SYSTEMS AND APPARATUS [0023] Now returning to Figures 2 and 3, the closing assembly
    100 preferably includes a left closing wheel 110-1 pivotally mounted to the frame of the line unit 14 via a pivot arm 150. A right closing wheel 110-2 is preferably pivotally mounted to the frame of the line unit 14 through the pivot arm 150. Both closing wheels 110 are preferably mounted in a
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    5/18 pivot arm 150 by respective axes 152 and arranged to roll along the surface of the ground. Referring to Figure 4, the pivot arm 150 includes axes 152-1,152-2 that extend to the left and right side, respectively, of the frame of the line unit 14. The pivot arm 150 is preferably mounted in a rotatable manner on both sides of the frame of the line unit 14 through rods extending through the shafts 152. Referring to Figures 4 and 5, the closing wheels 110 are preferably inclined to open upwards and forwards. In operation, the closing wheels 110 preferably collect the soil previously displaced to the side of the ditch 3 by the set of opening discs 18 and move the displaced soil back to the ditch.
    [0024] Referring to Figure 3, each closing wheel 110 preferably comprises a hub 112 and a rim 114 mounted circumferentially to hub 112. The rims 114 are preferably composed of a material resilient to wear with a relatively high friction coefficient , such as rubber. Cubes 112 are preferably composed of a relatively light material, such as plastic. In other embodiments, cubes 112 are composed of a relatively heavy material, such as cast iron. In still other embodiments, one or both closing wheels among 110 comprise sprockets such as those disclosed in US Patent No. 5,443,023, the disclosure of which is incorporated herein by reference in its entirety.
    [0025] It should be noted that in some applications, the closing wheels 110 do not return the displaced soil satisfactorily to the ditch 3. Furthermore, in some deployments, particularly at operating speeds of 12.8 to 16 kilometers per hour ( 8 to 10 miles per hour), the closing wheels do not steady or level
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    6/18 satisfactorily the soil returned to the ditch 3. Therefore, in reference to Figures 1 to 3, the closing assembly 100 preferably includes a flap 130 arranged to resiliently contact the soil surface behind the closing wheels 110. A flap 130 is preferably mounted resiliently to pivot arm 150. Specifically, flap 130 is preferably mounted to a spring 134 via a support 132. Spring 134 is preferably mounted at a front end to a fixing portion 154 of the arm of pivot 150.
    [0026] Now returning to Figures 5 and 6, the flap 130 preferably includes two wing sections 131-1,131-2 that extend to the left and right, respectively, of the ditch 3. The support 132 preferably retains an upper portion of each wing section 131 in a front scan orientation. The flap 130 additionally includes a central section 135 that passes directly over the ditch 3 and contacts the ditch at a lower end. Returning to Figure 8, a thickness D of the flap 130 and the stiffness of the flap material is preferably selected to enable the resilient engagement of the soil surface without disturbing the soil surface or without causing the closing wheels 110 to disconnect from the floor. . The flap 130 is preferably made of a relatively flexible material, such as rubber. Flap 130 is preferably made of neoprene. The thickness D of the flap 130 is preferably approximately 0.95 centimeters (3/8 inches).
    [0027] In operation, as line unit 10 travels through the field, flap 130 is preferably deformed in an elastic manner as it resiliently contacts the ground surface, as best illustrated in Figure 1. According to the wing sections front sweeper 131 pass over the displaced soil to the side
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    7/18 of the trench, the wings move the displaced soil through the set of opening discs 18 (and not returned to the trench 3 by the closing wheels 110) to the trench. In addition, the central section 135 comes into contact in a resilient manner and firm the soil back in the ditch 3.
    [0028] Returning to Figure 3, the closing assembly 100 preferably includes an actuator 120 arranged to modify the forces between the closing wheels 110 and the soil surface, as well as those between the flap 130 and the soil surface. The actuator 120 preferably comprises a pneumatic actuator such as the way pneumatic actuator disclosed in the copending application of the Assignee No. US 12 / 970,708 (the Order 708), the disclosure of which is incorporated herein in its entirety by reference. In other embodiments, the actuator comprises an air bag or a pair of reverse-acting air bags. In still other embodiments, the actuator 120 comprises a hydraulic actuator.
    [0029] The actuator 120 is preferably rotatably mounted at a first end to the frame of the line unit 14 through a rod 124-2. The actuator 120 is preferably pivotally mounted at a second end to a rear portion of the pivot arm 150 through a rod 124-1. Actuator 120 includes a cylinder 125 and a rod 127. The rod 127 divides an internal volume of the cylinder 125 into a lifting chamber 126 and a lowering chamber 124. An inlet 122-2 is in fluid communication with the lowering chamber 124 An input 122-1 is in fluid communication with the lift chamber 126.
    [0030] In operation, as the fluid pressure in the lowering chamber 124 is increased in relation to the fluid pressure in the lifting chamber 126, a load is transferred from the frame 14 to the closing assembly 100 so that the imposed force on the ground by closing wheels 110 and flap 130 increase. In a way
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    8/18 similarly, as the fluid pressure in the lowering chamber 124 is decreased in relation to the fluid pressure in the lifting chamber 126, the force imposed on the ground by the closing wheels 110 and the flap 130 decreases.
    [0031] In the modality of the closing set of Figures 1 to
    8, it should be noted that the amount of force transmitted from the actuator 120 to the flap 130 is related to the actual stiffness, that is, to the spring constant of the spring 134. In an alternative closure set 800 illustrated in Figures 10A and 10B, the flap 130 is held resiliently in contact with the soil surface by a spring, which allows the user to adjust the amount of force transmitted to the flap 130.
    [0032] Referring to Figure 10A, a pivot arm 850 of the closing assembly 800 is pivotally mounted to the frame of the line unit 14 on the shafts 852. The closing wheels 110 are mounted in a rollable manner to the pivot arm 850 on the rods 812. The pivot arm 850 includes a rear portion 854 to which an actuator 120 is pivotally mounted in an opening 824-1 at the rear portion 854 of the pivot arm 850. As with closing assembly 100, the The actuator is also pivotally mounted to the frame of the line unit 14. The rear portion 854 is preferably rigidly mounted to the pivot arm 850, for example, by welding, and in other embodiments it is formed as a part of the pivot arm .
    [0033] A rigid link 834 is preferably pivotally mounted to the rear portion 854 of pivot arm 850 on a pivot 814. The rigid link 834 preferably includes a force adjustment slot 836 with multiple notches along the length of the slot. A tension spring 860 is preferably retained at a first end by the force adjustment slot 836. The tension spring 860 is preferably retained at a second end by a
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    9/18 clamping aperture 870 formed at the rear portion 854 of pivot arm 850. The user adjusts the tension on spring 860 (and thus the force transmitted from pivot arm 850 to flap 130) by selecting the notch in which the first end of the spring 860 is retained. The flap 130 is preferably mounted to the rigid connection 834 by a mounting bracket 832 which, as with the mounting bracket 132, preferably retains the wing sections 131 of the flap in a front sweep orientation.
    [0034] Referring to Figure 10A, in a preferred mode, the closing set 800 includes lifting latching features that allow the operator to lock the flap 130 in a raised position, so that the flap does not contact the ground in operation while the rest of the closing assembly 800 remains in an operational state of coupling to the ground. The user preferably locks the flap 130 in the raised position first by adjusting the spring 860 to the farthest notch on the right in the view of Figure 10 in order to loosen the spring. The user then turns connection 834 upward (clockwise in the view in Figure 10A) until a cross hole 839 formed in the rigid link 834 is aligned with a cross hole 859 formed at the rear portion 854 of pivot arm 850. The holes 859, 854 are preferably equidistant from a central geometric axis of pivot 814 and are preferably equal in diameter. The user then inserts a pin through both holes 839, 859 in order to lock the connection 834 (and thus the tab 130) in the raised position. It should be noted that other mechanisms could be used to halt the other closing wheel assembly modalities raised here.
    CLOSING WHEEL DOWNWARD CONTROL SYSTEMS [0035] Returning to Figure 9A, a control system 200 is illustrated
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    10/18 to control the mathematically liquid force applied by actuator 120 to the closing system modalities described here. The control system 200 preferably includes a fluid control system 230 that has a first solenoid valve 220-1 in fluid communication with the lowering chamber 124 and a second solenoid valve 220-2 in fluid communication with the lowering chamber 124. Each solenoid valve 220 in the control system 200 is in fluid communication with an air compressor 210 preferably mounted to a planter toolbar 8 and configured to supply pressurized air to the fluid control system 230. A controller 250 that has a processor, a memory and a graphical user interface is preferably in electrical communication with the fluid control system and configured to set a pressure in the chambers 124.126 of the actuator 120. The controller 250 is preferably mounted in a cab of a tractor. In operation, the user enters a desired mathematically liquid pressure (for example, the pressure in the lowering chamber 124 minus the lifting chamber 126) in the controller 250 and the controller communicates a signal to the solenoid valve 220-1 and / or the solenoid valve 220-2 in order to achieve the desired mathematically liquid pressure in actuator 120. Each solenoid valve 220 is preferably a pressure control valve (for example, pressure relief or pressure reduction) configured to establish and maintain a selected pressure in an emission control valve corresponding to a command signal received by the solenoid valve.
    [0036] Returning to Figure 9B, the modified control system 200 'is illustrated including additionally a pivot arm angle sensor 280 mounted to the closing wheel assembly 100 and in electrical communication with the controller 250. The angle sensor 280 preferably comprises a rotating pot configured
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    11/18 to generate a signal related to the orientation of the pivot arm 150 in relation to the frame of the line unit 14. In operation, the controller 250 determines a desired force setting on the actuator 120 based on the output of the angle sensor 280.
    [0037] Some modalities of the 200 'control system additionally include two measuring wheel arm angle sensors 290, each mounted to a measuring wheel arm 17 of the measuring wheel set 16, in electrical communication with the controller 250. The angle sensor 290 preferably comprises a rotary potentiometer configured to generate a signal related to the orientation of the related measuring wheel arm 17 in relation to the frame of the line unit 14. In operation, the controller 250 determines an adjustment of desired force on actuator 120 based on an added signal equal to the difference between the signal generated by sensor 280 and the weighting of the signals generated by sensors 2901,290-2. In some methods, controller 250 increases the mathematically liquid pressure (for example, increasing the pressure in the lowering chamber 124) when the added signal exceeds a threshold, that is, when the closing wheels 110 have turned upward beyond one or more threshold angles in relation to the measuring wheels of the measuring wheel assembly 16. The threshold angle is preferably exceeded when the bottom of the closing wheels 110 rises beyond a vertical plane representing the average height of the bottom measuring wheels 17-1,17-2.
    [0038] Referring to Figure 15, a process 1500 for controlling downward pressure on the closing wheel assembly based on an intake from angle sensor 280 and / or angle sensors 290 is illustrated. In step 1510, controller 250 preferably receives a signal from angle sensor 280. In some embodiments, in step 1515, controller 250 receives
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    12/18 additionally a signal from angle sensors 290. In step 1520 controller 250 determines a level value based on the signal generated by angle sensor 280 and / or the signal generated by angle sensors 290. In some embodiments , the level value is equal to the sum of the closing wheel angle sensor signal and the weighting of the angle measuring wheel sensor signals. In step 1530, the level value is compared to a desired value stored in memory. For example, a desired value corresponding to the fact that the bottom of the closing wheels is flush with the bottom of the measuring wheels. If in step 1530 the controller determines that the level value is not equal to the desired value or is not within a threshold range (for example, plus or minus 5%) of the desired value, then, in step 1540, the controller preferably sets a downward pressure command (for example, the control pressure of one of the solenoid valves) to the fluid control system 230 to bring the depth measured closer to the desired value. For example, controller 250 preferably reduces the mathematically liquid pressure in the actuator (for example, by lowering the pressure in the descending chamber 124) when the signal corresponds to a position where the pivot arm 150 has vertically rotated downward beyond a threshold angle in relation to the measuring wheel arms, which indicates that the ground is too soft for the current pressure setting. In step 1550, controller 250 optionally determines whether the rate of change of the signal generated by the closing wheel angle sensor 280 is within a threshold rate. If the rate of change of the signal is not within the threshold rate, then in step 1560, controller 250 preferably increases the downward pressure command by one point (for example, 1 psi).
    [0039] Returning to Figure 9C, another control system 300 is illustrated to control the pressure in one or more actuators 120
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    13/18 associated with one or more line units 10 mounted along the toolbar 8. A pneumatic controller 350 similar to the controllers disclosed in Order 708 (previously incorporated in this document for reference) is in fluid communication with a compressor air 310, a lift supply line 320 and a lower supply line 330. The lift supply line 320 is in fluid communication with each lift chamber 126 and the lower supply line 330 is in fluid communication with each lift chamber 124. In operation, the user adjusts the controller 350 to set a desired mathematically liquid pressure in the actuator 120.
    TANDEM WHEEL MODALITIES [0040] Figures 11 to 13 illustrate a modality of a closing assembly 100 'of a line unit 10. The closing assembly 100' is preferably swivelably coupled to the frame of the line unit 14, as previously disclosed in this document, and configured to move the displaced soil back to ditch 3, as described in greater detail below.
    [0041] Similar to the closure assembly 100 previously described in the present document, the closure assembly 100 'includes a pivot arm 150 preferably rotatably mounted on both sides of the frame of the line unit 14 by rods extending through axes 152 of the pivot arm. An actuator 120 is preferably pivotally mounted at a first end to the frame of the line unit 14 via a rod 124-2. The actuator 120 is preferably pivotally mounted at a second end to a rear portion of the pivot arm 150 through a rod 124-1. Actuator 120 can be any actuator configured to apply variable force to the pivot arm, such as a pneumatic or hydraulic actuator.
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    14/18 [0042] The closing assembly 100 'preferably also includes a closing wheel assembly 2000. The closing wheel assembly 2000 preferably includes a support 2010. The support 2010 is preferably rigidly mounted at an end greater than a rear end of the pivot arm 150. A 2020 movable arm is preferably swivelably mounted to a lower portion of the 2010 support by means of a 2012 bushing that extends through the 2010 support and the 2020 movable arm.
    [0043] The closing wheel assembly 2000 also preferably includes a rear closing wheel 2032 and a front closing wheel 2034. The front closing wheel 2034 is preferably mounted in a rollable manner to a front end of the movable arm 2020 around a front axle 2024. The rear closing wheel 2032 is preferably mounted in a rollable manner to a rear end of the movable arm 2020 around a rear axle 2022. As best illustrated in Figure 13, the rear axle 2022 and the axle frontal geometry 2024 preferably descend as they extend towards the outside, so that the closing wheels 2032, 2034 open upwards. Additionally, the rear geometry axis 2022 and the front geometry axis 2024 preferably extend backwards as they extend towards the outside, so that the closing wheels 2032, 2034 open forward. It should be noted that the orientation of the closing wheels in relation to the direction of travel Dt aids in the movement of the soil displaced from trench 3 back to the trench. In some embodiments, each of the closing wheels 2032, 2034 includes one or more soil disturbance features (for example, teeth or blades) arranged around the perimeter of the disc. However, the illustrated closing wheels instead have a radius
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    15/18 substantially constant.
    [0044] As shown in Figure 13, the contact points between the closing wheels 2032, 2034 and the ground are preferably separated by a transverse distance Td. The transverse distance Td is preferably marginally greater than an upper end of the trench 3, so that the closing wheels 2032, 2034 are arranged to return the displaced soil from the trench back to the trench. The transverse distance Td is therefore preferably marginally greater (for example, from 0.63 to 2.5 centimeters (0.25 to 1 inch greater) than the separation between the opening discs of the opening disc set 18 in the height when the opening discs emerge from the ground (for example, 4.4 centimeters (1.75 inches) from the bottom of the opening discs). The transverse distance Td is preferably variable by adding or removing shims, as known in the art.
    [0045] As shown in Figure 12, the geometric axes 2022,
    2024 are separated by a longitudinal distance (that is, a direction of travel) Ld so that the contact points between the closing wheels and the ground surface 2 are also separated by the same longitudinal distance Ld when the movable arm 2020 is oriented horizontally. The distance Ld is preferably 5 to 20 centimeters (from 2 to 8 inches) and is preferably approximately 17.8 centimeters (7 inches). Particularly in modalities where the perimeter of each closing wheel is configured to maintain contact in a consistent manner with the ground (for example, both closing wheels 2032, 2034 illustrated in Figure 13), and even more particularly in modalities in which the transverse distance Td between the closing wheels is dimensioned so that the closing wheels are positioned adjacent to both sides of the trench, a small longitudinal distance Ld or
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    16/18 close to zero between the closing wheels results in compression or clogging of soil between the closing wheels.
    [0046] In operation, as line unit 10 encounters changes in the terrain, the closing wheels 2032, 2034 move around the pivot in relation to each other around the bushing 2012. Therefore, when encountering an inclined ground surface along the direction of travel Dt or transversal to the direction of travel, the closing wheels 2032, 2034 maintain simultaneous contact with the ground surface despite the preferably substantial longitudinal distance Ld between the points of contact between the closing wheels 2032, 2034 and the soil.
    [0047] In operation, as line unit 10 travels across the field, the soil surface 2 imposes a horizontal backward force on the rear closing wheel 2032, which results in a horizontal backward force F2 on the rear axle 2022 (Figure 11). The ground surface imposes a horizontal backward force on the front closing wheel 2034, which results in a horizontal backward force F4 on the front axle 2024. As illustrated in Figure 13, the forces F2, F4 preferentially act on a plane common Pf. In another embodiment of a closing wheel set 2000 'illustrated in Figure 14, a central geometric axis Ab of the bushing 2012' interjects the plane Pf so that the forces F2, F4 act on the movable arm 2020 'through of the central geometric axis Ab. Therefore, in the modality of Figure 14, the forces F2, F4 preferentially impose a very small or zero moment on the mobile arm 2020 'around the bushing 2012' as the line unit 10 traverses the field.
    [0048] In some modalities of the closing set, a flap 130 configured and arranged to return and firm the soil in the ditch 3 is preferably mounted resiliently to the pivot arm 150 by means of a spring 134, as described elsewhere in the
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    17/18 this document.
    [0049] In alternative modalities of the closing set, the 2020 mobile arm is forced to remain in a horizontal position. In some such embodiments, a coiled spring is mounted to the 2012 bushing so that the coiled spring does not rotate in relation to the 2012 bushing. The 2012 bushing is preferably snapped onto the 2010 bracket. The coiled spring preferably contacts the movable arm 2020 in two points at the stern and bow of the bushing and imposes a moment of opposite action on the 2020 mobile arm, which increases according to the effective spring constant of the coiled spring when the mobile arm rotates in any direction from the horizontal position illustrated in the Figures. In alternative modalities of the closing set, the two closing wheels in the relative positions described here in relation to the closing wheels 2032, 2034 are each mounted in a rollable manner to a respective and independent closing wheel pivot arm which pivot freely from sub-frame 14 or pivot arm 150. In such embodiments, the closing wheel pivot arms are preferably forced (for example, by means of springs) so that the closing wheels are each forced towards contact with the soil surface.
    [0050] In the illustrated closing set modes, the front closing wheel is shown to the left of trench 3 and the rear closing wheel is shown to the right of the trench. However, in other embodiments, the transverse position and orientation of the closing wheels can be reversed so that the front closing wheel is positioned to the right of the ditch 3 and the rear closing wheel is positioned to the left of the ditch.
    [0051] The foregoing description is presented to enable a person of ordinary skill in the art to use the invention and is
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    18/18 provided in the context of a Patent Application and its requirements. Various modifications to the preferred mode of the apparatus, and the general principles and resources of the system and methods described in this document will be readily apparent to persons skilled in the art. Therefore, the present invention should not be limited to the modalities of the apparatus, system and methods described above and illustrated in the Figures drawn, but should be in accordance with the broadest possible scope consistent with the spirit and scope of the attached claims.
    权利要求:
    Claims (22)
    [1]
    1. Agricultural line unit (10) configured to move in a forward direction along a soil surface and to open a ditch (3) on the soil surface comprising:
    a line unit frame (14);
    a closing wheel assembly (100, 2000, 2000 ') pivotally mounted to the line unit frame (14) and arranged to roll along a ground surface;
    a primary actuator arranged to modify a primary downward force between said closing wheel assembly (100, 2000, 2000 ') and said soil surface;
    characterized by a flap (130) mounted behind said closing wheel assembly (100, 2000, 2000 '), said flap (130) being arranged to contact resiliently with said soil surface.
    [2]
    2. Agricultural line unit (10), according to claim 1, characterized by the fact that the secondary actuator applies a variable downward force to said flap (130).
    [3]
    3. Agricultural line unit (10), according to claim 2, characterized by the fact that said secondary actuator comprises an elastic connection.
    [4]
    4. Agricultural line unit (10), according to claim 2, characterized by the fact that said variable downward force is adjusted by an operator.
    [5]
    5. Agricultural line unit (10), according to claim 4, characterized by the fact that said secondary actuator comprises an adjustable spring.
    [6]
    6. Agricultural line unit (10), according to claim 2, characterized by the fact that said
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    2/5 border closure comprises an elastic flap, and said elastic flap is configured to secure the soil in the ditch (3).
    [7]
    7. Agricultural line unit (10), according to claim 1, characterized by the fact that said flap (130) comprises an elastic flap, the elastic flap firmening the soil in the ditch (3).
    [8]
    8. Agricultural line unit (10), according to claim 7, characterized by the fact that said elastic flap includes a forward inclined portion, said forward inclined portion being arranged to move the soil transversely to the ditch (3).
    [9]
    9. Agricultural line unit (10), according to claim 1, characterized by the fact that it still comprises:
    a fluid control system (230), said fluid control system (230) configuring a variable pressure in said primary actuator, and a controller (250) in data communication with said fluid control system (230) , and said controller (250) asks the user to enter a closing wheel criterion, and said controller (250) sends a command signal to said fluid control system (230), in response to the Upon receiving said command signal, said fluid control system (230) modifies said variable pressure until said required closing wheel criterion is reached.
    [10]
    10. Agricultural line unit (10), according to claim 9, characterized by the fact that said closing wheel criterion comprises a value of said variable pressure.
    [11]
    11. Agricultural line unit (10), according to claim 1, characterized by the fact that it still includes:
    a fluid control system (230), the said
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    3/5 fluid control system (230) sets a variable pressure in said primary actuator;
    a sensor mounted on said closing wheel assembly (100, 2000, 2000 '), said sensor detecting a closing system criterion; and a controller (250) in data communication with said fluid control system (230) and with said sensor, the controller (250) increasingly adjusting a command signal, so that the system criterion closing value approaches a desired value.
    [12]
    12. Agricultural line unit (10), according to claim 11, characterized by the fact that said closure system criterion relates to the amount of soil returned to the ditch (3).
    [13]
    13. Agricultural line unit (10), according to claim 11, characterized by the fact that said closure system criterion relates to the operational characteristic of said secondary ditch closure system.
    [14]
    14. Agricultural line unit (10), according to claim 11, characterized by the fact that it still comprises:
    a position sensor configured to detect an angular position of a component of said line unit (10), the criterion of closing system being related to said angular position.
    [15]
    15. Agricultural line unit (10), according to claim 11, characterized by the fact that it still comprises:
    a position sensor configured to detect an angular position of said flap (130), the criterion of the closing system being related to said angular position.
    [16]
    16. Agricultural line unit (10), according to
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    4/5 claim 1, characterized by the fact that said closing wheel set (100, 2000, 2000 ') comprises:
    a movable arm (2020), said movable arm (2020) being configured to rotate in a longitudinal plane in relation to the line unit (10);
    a first closing wheel mounted rotatable to a front end of said movable arm (2020); and a second closing wheel mounted in a rollable manner to the rear end of said movable arm (2020).
    [17]
    17. Agricultural line unit (10), according to claim 16, characterized by the fact that said movable arm (2020) is mounted to said line unit (10) in a pivot of movable arm, being said the first closing wheel is mounted to said moving arm (2020) on a first closing wheel bearing, and said second closing wheel is mounted to said moving arm (2020) on a second closing wheel bearing, and the movable arm pivot, said first closing wheel bearing and said second closing wheel bearing are aligned along a horizontal plane when the movable arm (2020) is in a horizontal orientation.
    [18]
    18. Agricultural line unit (10), according to claim 1, characterized by the fact that said flap (130) comprises:
    a central elastic portion, said central elastic portion firmening the soil back into the ditch (3);
    a first elastic wing portion, said first elastic wing portion having a frontal sweeping orientation in relation to said central elastic portion, said first elastic wing portion moving the ground in a transverse direction towards the ditch ( 3).
    Petition 870190103501, of 10/14/2019, p. 26/32
    5/5
    [19]
    19. Agricultural line unit (10), according to claim 1, characterized by the fact that the downward force adjustable by user is applied between said set of closing wheel (100, 2000, 2000 ') and said flap (130).
    [20]
    20. Agricultural line unit (10), according to claim 1, characterized by the fact that the downward force adjustable by user is applied between said line unit (10) and said flap (130).
    [21]
    21. Agricultural line unit (10) according to claim 1, characterized by the fact that the downward force adjustable by user is applied between a frame (14) of said line unit (10) and said flap (130 ).
    [22]
    22. Agricultural line unit (10), according to claim 1, characterized by the fact that the adjustable downward force per user is applied to said tab (130), with the adjustable downward force per user being modified by the user with the use of a controller (250) mounted in the cab of a tractor.
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    AU2020201303B2|2021-06-03|
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    AR093137A1|2015-05-20|
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    AU2013334548B2|2017-10-26|
    US20150271986A1|2015-10-01|
    US10721858B2|2020-07-28|
    CA3094629A1|2014-05-01|
    EP2911495A1|2015-09-02|
    EP3351081A1|2018-07-25|
    CA2889032A1|2014-05-01|
    ZA201503161B|2016-01-27|
    AU2018200495B2|2019-11-21|
    CA3094633A1|2014-05-01|
    UA118547C2|2019-02-11|
    EP2911495B1|2018-03-14|
    CA3094629C|2022-02-08|
    AU2021204049A1|2021-07-08|
    AU2020201303A1|2020-03-12|
    AU2018200495A1|2018-02-15|
    EP3351081B1|2019-10-16|
    WO2014066650A1|2014-05-01|
    BR112015009089A2|2017-07-04|
    EP2911495A4|2016-06-29|
    US9848524B2|2017-12-26|
    US20180116100A1|2018-05-03|
    US20200337224A1|2020-10-29|
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    法律状态:
    2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-20| B06I| Publication of requirement cancelled [chapter 6.9 patent gazette]|Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA. |
    2019-07-16| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2019-12-10| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-02-04| 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 24/10/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261718087P| true| 2012-10-24|2012-10-24|
    US201361815540P| true| 2013-04-24|2013-04-24|
    PCT/US2013/066634|WO2014066650A1|2012-10-24|2013-10-24|Agricultural trench closing systems, methods, and apparatus|
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