• 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 invention relates to a seed drill (1) which can be coupled to a tractor, said seed drill (1) comprising sowing elements (3), a chassis (2) carrying the sowing elements (3), a connection system (4) fitted to the chassis (2) for a connection of the chassis (2) to the towing vehicle, and two assemblies (5; 7) arranged at least partially one (5) in front, the other (7) behind the chassis ( 2) taken in relation to the direction of advance of the seed drill. Each assembly (5; 7) comprises at least two rotary members (6; 8) for controlling the working depth and each assembly is an oscillating assembly coupled to the chassis (2) by a link (9; 10) axis pivot pivot extending in the front / rear direction orthogonal to the axis of rotation of the rotary members (6) controlling the working depth of the front assembly (5), said assemblies (5; 7) being assemblies oscillating independently with respect to each other.
    公开号:FR3083960A1
    申请号:FR1856627
    申请日:2018-07-18
    公开日:2020-01-24
    发明作者:Michel Evin；Florence Evin
    申请人:Ev Dev；
    IPC主号:
    专利说明:

    Technical field to which the invention relates
    The invention relates to a seed drill which can be coupled to a towing machine and a soil working machine incorporating said seed drill.
    It relates more particularly to a drill of the aforementioned type comprising sowing elements, a chassis carrying the sowing elements, a connection system equipping the chassis for a connection of the chassis to the towing machine, and two assemblies each comprising at least two rotary members of control of the working depth, said assemblies being arranged at least partially one, in front, the other, behind the frame taken with respect to the direction of advance of the drill.
    Technological background
    For many years, direct sowing has been practiced, this method of sowing consisting in directly sowing unprepared land, that is to say, not plowed and which may have on the surface thatches of previous crops or other weeds. The difficulty of direct seeding lies in the precise positioning of seeds and / or fertilizers in the soil, due to the irregularities of the soil which result from the presence of plant debris.
    To carry out this kind of work, the known seeders are coupled to a towing machine. Generally, these known seeders are mounted side-by-side in an axial or non-axial offset along a line transverse to the direction of advance of the tractor unit, this tractor unit most often being a rolling chassis capable of being coupled to a towing vehicle. Each seed drill generally comprises an opening disc to make a furrow, a sowing element which positions in the soil, in particular in the furrow, the seeds and / or fertilizers coming from a hopper carried by the towing machine and behind the sowing element, a press wheel or tamper which closes the furrow and compacts the soil to ensure good contact of the seed or fertilizer with the soil. Control devices for the working depth of the sowing elements are also provided. However, the current design of seeders is not satisfactory in terms of the regularity of the work carried out with a view to depositing seeds and / or fertilizers at a depth kept as constant as possible.
    Object of the invention
    An object of the invention is to provide a seed drill whose design allows more effective control of the working depth allowing positioning of the seeds and / or fertilizers at a substantially constant depth including in the presence of irregular soil and at a satisfactory speed. .
    To this end, the subject of the invention is a seed drill which can be coupled to a tractor, said seed drill comprising sowing elements, a chassis carrying the sowing elements, a connection system fitted to the chassis for connecting the chassis to the tractor, and two assemblies arranged at least partially one in front, the other behind the frame taken with respect to the direction of advance of the seed drill, characterized in that each assembly comprises at least two rotary members for controlling the working depth and in that each assembly is an oscillating assembly coupled to the chassis by a pivot link of a pivot axis extending in the front / rear direction orthogonal to the axis of rotation of the rotary members for controlling the working depth of the front assembly, said assemblies being assemblies oscillating independently with respect to each other.
    The production of oscillating assemblies with at least two control members of the working depth makes it possible, at the level of a pair of control members, to increase the chances of holding each of the control members on the ground even during of encountering an obstacle. The seed drill is thus able to better follow the soil profile and allow precision sowing.
    According to one embodiment of the invention, the assemblies are assemblies oscillating around the same axis.
    According to one embodiment of the invention, the rotary members for controlling the working depth of the front assembly each take the form of a cutting disc rotating on itself, each disc being provided on at least the one of its faces of fingers projecting from said face, said fingers being arranged on a center circle disposed on the axis of rotation of the disc, said discs being parallel to one another and connected to each other by a crossmember equipped with a part of the pivot connection of the front assembly to the chassis
    The production of each rotary member for controlling the working depth of the front assembly in the form of a circular coulter provided with fingers gives said member a triple function, namely both a function of opening member of a groove inside which a seed or fertilizer can be deposited, a function of cutting the vegetation using the cutting edge of the disc and the cutting edge of the fingers and a function of control of the working depth by pressing on the ground of the fingers thus delimiting a reference surface.
    According to an embodiment of the invention, the fingers have a triangular cross section.
    According to one embodiment of the invention, the rotary members for controlling the working depth of the rear assembly each have the shape of a wheel rotating on itself, said wheels being mounted on a carriage comprising a coupled drawbar to the chassis by a connecting piece equipped with a part of the pivot connection of the rear assembly to the chassis for an oscillating mounting of said rear assembly, the connection between the drawbar and the connection piece being a pivoting connection around a axis orthogonal to the axis of oscillation of the rear assembly, the connecting piece being at the level of said pivoting connection between the drawbar and the connecting piece equipped with a stop for limiting angular displacement in the direction of drawbar lift.
    The configuration of the connection between the chassis and the carriage allows, thanks to the presence of the stop, the use of the wheels of the carriage as a reference and control member of the working depth of the sowing elements without harming the capacity of the wheels of the trolley to follow the soil profile as best as possible.
    According to one embodiment of the invention, the stop for limiting angular displacement in the direction of lifting the drawbar carried by said connecting piece is a movable stop adjustable in position. This results in the possibility of adjusting the depth depending on the position of said stop.
    According to one embodiment of the invention, the constituent wheels of the rotary members for controlling the depth of the rear assembly are four in number and form in pairs a tandem coupled to said carriage via a pivot link of pivot axis transverse to the direction of advance of the seed drill. Again, this arrangement allows a better fit with the soil profile and guarantees precision sowing.
    According to one embodiment of the invention, the wheels of a pair of wheels forming a tandem are offset axially in a direction transverse to the direction of advance of the drill.
    According to one embodiment of the invention, the rear assembly comprises an auxiliary carriage arranged behind the so-called main carriage equipped with rotary depth control members, this auxiliary carriage is fitted with compacting wheels, this auxiliary carriage is coupled to the carriage main by a pivot link with an axis transverse to the direction of advance of the seed drill, and a return member is disposed between said carriages, this return member being configured to return the compacting wheels of the auxiliary carriage to the ground support position . The compacting wheels, also called press wheels, close the furrow.
    According to one embodiment of the invention, the compacting wheels are coupled to the auxiliary carriage by an axle oscillating about an axis orthogonal to the pivot axis of the pivot connection of the auxiliary carriage to the main carriage.
    The design of the auxiliary carriage and the wheels which allows several degrees of freedom of movement with respect to the main chassis makes it possible to follow the soil profile under ideal conditions to guarantee contact between the seeds or fertilizers and the soil.
    According to one embodiment of the invention, the sowing elements are arranged in pairs on the chassis symmetrically on either side of a plane passing through the pivot axis around which the assemblies oscillate. This symmetrical arrangement of the sowing elements makes it possible to limit the superelevation.
    According to one embodiment of the invention, the sowing elements are arranged in pairs opposite one another along a line transverse to the direction of advance of the seeder, each sowing element comprises at least one disc carrying at least one line for distributing seeds and / or fertilizer, each line of a sowing element being positioned on the face side of the disc of said sowing element opposite to that facing the other sowing element of the pair of sowing elements and being provided in the vicinity of its outlet orifice with a deflector.
    The distribution line or pipes are therefore disposed on the back of the disc and are thus protected by the disc. The outlet orifice of each distribution pipe is, in cooperation with the deflector, arranged behind and in alignment with a depth control member of the front assembly, taken with respect to the direction of advance of the seed drill, the positioned state of the seed drill on a horizontal flat surface to allow the seeds and / or fertilizers to be deposited in the furrow or slot opened by the depth control member of the front assembly.
    According to one embodiment of the invention, the discs of the sowing elements have a non-zero opening angle and form, seen from the front of the seed drill, a V between them.
    According to one embodiment of the invention, each seed and / or fertilizer distribution pipe is provided with a decompression pipe leading to the open air. This decompression device makes it possible to attenuate the air pressure during pneumatic transport of the seeds or fertilizers inside the pipe and to avoid a rebound of the seeds and / or fertilizers in the furrow during their deposit. .
    According to one embodiment of the invention, the system for connecting the chassis to a tractor unit comprises at least one connecting rod, a piece for coupling the connecting rod to a tractor unit, an actuator arranged between the connecting rod and the coupling piece and at least two elastically deformable stabilizing members, the connecting rod which extends between the chassis and the coupling part of the connecting rod to a towing machine being connected to the chassis by a pivot connection with an axis, called horizontal, transverse to the direction of advancement of the drill, and orthogonal to the axis of oscillation of the front and rear assemblies, the pivoting of the chassis around the pivot axis of its pivot connection to the connecting rod being limited by said stabilizing springs.
    The presence of elastically deformable stabilizing members, such as springs, makes it possible to maintain the chassis in a position in which the axis of the chassis around which the front and rear assemblies oscillate extends substantially horizontally, to within 20 °. , especially when lifting the seed drill during transport of the seed drill using the tractor unit.
    The invention also relates to a soil working machine comprising a tractor unit and at least one seed drill which can be coupled to the tractor unit, characterized in that the seed drill conforms to that described above.
    Detailed description of an example of realization
    The invention will be clearly understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:
    - Figure 1 shows an overview, in exploded position of the elements constituting it, of a seed drill according to the invention;
    - Figure 2 shows a perspective view of a drill according to the invention;
    - Figure 3 shows a top view of a drill according to the invention;
    - Figure 4 shows a longitudinal sectional view of a drill according to the invention;
    - Figure 5 shows a side view of a drill according to the invention;
    - Figure 6 shows a sectional view along DD of Figure 5;
    - Figure 7 shows a view of the seed drill taken from the front of the seed drill;
    - Figure 8 shows an overview, in exploded position of the elements constituting it, of another embodiment of a seed drill according to the invention;
    - Figure 9 shows a side view of a soil working machine according to the invention;
    FIG. 10 represents a top view of FIG. 9, and
    FIG. 11 represents a perspective view of the machine of FIG. 10.
    As mentioned above, the subject of the invention is a seed drill 1 which can be coupled to a tractor unit 40 and capable of forming alone or in cooperation with a plurality of seeders 1 arranged in front, behind or next to said seed drill 1, along from a line transverse to the direction of movement of the tractor 40, a machine 50 for working the soil.
    An example of such a tillage machine is shown in Figures 9 to 11.
    In this embodiment, the tractor 40 is a rolling chassis equipped with a coupling to a tractor. The wheels of the rolling chassis can be raised to allow the tractor 40 to pass from a transport configuration of the seed drill 1 to a working configuration in which the seed drill 1 rests on the ground.
    This rolling chassis comprises longitudinal beams and transverse beams and the seeders 1 are generally coupled to the transverse beams. The number of seeders 1 can be between 1 and η, n being an integer.
    In the example shown, there is provided a first row, called front, of eight seeders offset axially along a line transverse to the direction of advance of the rolling chassis and a second row, said rear, of eight seeders offset axially along a line transverse to the direction of travel.
    Seeders 1 thus have, seen from above, a staggered arrangement. Obviously, as a variant, a self-propelled rolling chassis could have been provided without departing from the scope of the invention.
    This rolling chassis generally carries at least one or even two distribution hoppers, one for seeds and the other for fertilizers, these hoppers not having been shown. Alternatively, the hoppers can be offset.
    The seed drill 1 which can be coupled to such a tractor 40 comprises elements 3 sowers, a chassis 2 carrying the elements 3 sowers, a connection system 4 equipping the chassis 2 for a connection of the chassis 2 to the tractor 40, and two sets 5; 7 arranged at least partially, one 5, in front, the other 7, behind the frame 2 taken relative to the direction of advance of the seed drill.
    Characteristically to the invention, each assembly comprises at least two rotary members for controlling the working depth. Thus, the front assembly 5 comprises two rotary work control members 6 while the rear assembly 7 comprises two or four rotary work depth control members 8. Each assembly 5, 7 is an oscillating assembly coupled to the chassis 2 by a pivot link of axis XX ', pivot extending in the front / rear direction orthogonal to the axis YY' of rotation of the rotary control members 6 the working depth of the front 5 assembly.
    The pivot connection between the oscillating front assembly 5 and the chassis 2 is shown at 9 in the figures, while the pivot connection between the oscillating rear assembly 7 and the chassis 2 is shown at 10 in the figures.
    These sets are sets which oscillate independently from each other around the same axis. Thanks to these oscillating assemblies, this results in the possibility of vertical lifting of part of an assembly when encountering an obstacle without the other part of said assembly being lifted. Likewise, one set can oscillate without the other oscillating.
    The front assembly 5 comprises two rotary members 6 for controlling the working depth of the elements 3 seeders which will be described below. These rotary members 6 are each formed by a non-driving disc 61, that is to say rotating on itself by simple contact with support on the ground during the advancement of the seed drill.
    These discs 61 are mutually parallel. The outer circumferential edge of each disc 61 is a cutting edge so that each disc 61 forms a cutting disc or a circular coulter able to split the ground to form a slot or a furrow. Each disc 61 is provided on each of its faces with fingers 62 projecting from said face.
    These fingers which have a triangular cross section are twelve in number per face in the examples shown. These fingers 62 are arranged on a center circle disposed on the axis YY ′ of rotation of the disc 61 and act both as a reference member and for controlling the working depth by pressing on the ground, and as a member cutting which completes the cutting action exerted by the section of the disc 61. The cutting takes place at the edges of the fingers closing the vertices of the triangle formed by the finger 62.
    These discs 61 are interconnected by a crosspiece 63 extending between said disc hubs. This cross-member 63 is provided, in its median part, with a blind or through orifice forming the bearing of a section of shaft carried by the chassis 2. The section of shaft forms, in the state inserted in the bearing, with the bearing, the pivot link 9 between the front 5 assembly and the chassis 2 which allows the oscillation of the front 5 assembly. The pivot of this pivot link 9 extends orthogonally to the axis of rotation of the rotary control members 6.
    The rear 7 assembly is more complex in design than the front 5 assembly. This rear assembly 7 may include two rotary members 8 for controlling the working depth as illustrated in FIG. 1 or four rotary members 8 for controlling the working depth as illustrated in FIG. 8.
    Regardless of their number, these rotary members 8 for controlling the working depth each have the shape of a non-driving wheel 81 rotating on itself, that is to say driven in rotation by contact with support on the ground. during the advancement of the seed drill 1. These wheels 81 are mounted on a carriage 11. When these wheels 81 are four in number, they form in pairs a tandem coupled to the carriage 11 via a pivot link 16 d pivot axis transverse to the direction of advance of the drill 1.
    In this case, preferably, the wheels 81 of a pair of wheels forming a tandem are offset axially in a direction transverse to the direction of advance of the drill 1.
    The carriage 11 comprises, for its part, a drawbar 12 in the form of a bar. The rest of the carriage 11 is essentially formed by a U-shaped part with the core of the U coupled to the drawbar and each branch of the U coupled to the wheels 81.
    The drawbar 12 is coupled to the chassis 2 by a connecting piece 13 equipped with a part of the pivot connection 10 of the rear assembly 7 to the chassis 2 for an oscillating mounting of said rear assembly 7. This connection between the drawbar 12 and the connecting piece 13 is a pivoting connection 14 about an axis orthogonal to the axis XX ’of oscillation of the rear assembly 7. This connecting piece 13 is, at said pivoting connection 14 between the drawbar 12 and the connecting piece 13, equipped with a stop 15 for limiting angular displacement in the direction of lifting the drawbar 12.
    In the examples shown, this stop 15 for limiting angular displacement in the direction of lifting the drawbar 12, carried by the connecting piece 13, is a movable stop 15 adjustable in position. This stop 15 is in the form of a removable part which is inserted into holes made at different heights on the connecting part 13. The choice of holes defines the desired working depth.
    For the pivoting coupling of the piece 13 for connection to the chassis 2 for an oscillating mounting of the rear assembly 7 relative to the chassis 2, the connection piece 13 is equipped with a bearing which is in the form of a blind housing or through and the chassis 2 is equipped with a shaft section capable of being inserted into said bearing to form, in the inserted state, the pivot link between the rear assembly and the chassis 2. The section of chassis shaft 2 serving for the pivoting connection of the chassis 2 with the rear assembly 7 for the oscillation of the rear assembly 7 is coaxial with the shaft section of the chassis 2 serving for the pivoting connection of the chassis 2 with the front 5 assembly for an oscillation of the front 5 assembly.
    The rear assembly 7 further comprises an auxiliary carriage 17 disposed behind the carriage 11 equipped with rotary depth control members 8 and called the main carriage. This auxiliary carriage 17 is fitted with compacting wheels 18 or press wheels. This auxiliary carriage 17 is coupled to the main carriage 11 by a pivot link 19 of axis transverse to the axis of direction of advance of the seed drill 1.
    A return member 20, such as a spring, is disposed between said carriages 11 and 17. This return member 20 is configured to return the compacting wheels 18 of the auxiliary carriage 17 to the ground support position. The compacting wheels 18 are coupled to the auxiliary carriage 17 by an axle 21 oscillating about an axis orthogonal to the pivot axis of the pivot link 19 of the auxiliary carriage 17 to the main carriage 11.
    Thus, when encountering an obstacle, depending on the type of obstacle, these compacting wheels 18 can either be lifted together against the action of the return member 20 or be lifted selectively.
    The elements 3 sowers are, in turn, arranged in pairs on the frame 2 symmetrically on either side of a plane passing through the axis XX 'pivot around which the sets 5 and 7 oscillate.
    In the example shown, only one pair of sowing elements is provided. The sowing elements of this pair are arranged opposite one another along a line transverse to the direction of advance of the seeder 1.
    Each sower element 3 includes a disc 31 carrying a seed distribution pipe 32. Each pipe 32 of a sowing element is positioned on the face side of the disc 31 of the opposite sowing element and facing the other sowing element 3 of the pair of 3 sowing elements. In other words, this pipe of the sowing element is positioned on the back side of the disc 31 of the sowing element.
    This pipe is provided in the vicinity of its outlet orifice with a deflector 33. Although in the example shown, each disc has only one pipe, it could have been provided in an equivalent manner two pipes, one dedicated to the seed, the other to the fertilizer. This line 32 for distributing seeds and / or fertilizer is supplied with input by the content of a hopper carried by the tractor 40 or offset.
    The movement of seeds or fertilizer inside each pipe takes place by gravity or by pneumatic transport. In the case of pneumatic transport, each pipe 32 for distributing semen and / or fertilizer is provided with a decompression pipe 34 leading to the open air. This pipe is fixed to the disc hub by means of a connecting piece. The attachment can be fixed but it is preferably adjustable.
    The deflector 33 fitted to the outlet orifice of each dispensing product 32 is in the form of a plate guiding the seed or the fertilizer in the direction of the ground in order to deposit it in the slot formed by the rotary members 6 of the assembly 5 before.
    The discs 31 constituting the elements 3 sowers have a non-zero opening angle a and form, seen from the front of the seed drill, a V between them. It should be remembered that the opening angle is the angle formed by the plane of rotation of the disc without an entry angle with the vertical plane parallel to the advancement axis of the seed drill.
    This opening angle corresponds to the angulation of the disc relative to the direction of advance of the seed drill. In the examples shown, this opening angle a is between 4 ° and 9 °.
    The V-shaped discs also have an entry angle. This entry angle corresponds to the angle formed by the axis of rotation of the disc with the horizontal plane formed by the ground.
    In the examples shown, this entry angle represented in β in FIG. 6 is generally between 18 ° and 30
    These opening and opening angles can be defined by construction or adjustable, for example using a set of shims. This design of the sowing elements makes it possible to avoid disturbance of the soil and therefore limits as much as possible the emergence of weeds in the slot where the seed is deposited.
    To perfect the seed drill, a system 4 for connecting the chassis 2 to the tractor 40 is provided. This connecting system 4 comprises a connecting rod 22, a piece 23 for coupling the connecting rod 22 to the tractor 40, an actuator 24 disposed between the connecting rod 22 and the coupling piece 23 and two stabilizing springs 25.
    The connecting rod 22 extends between the chassis 2 and the part 23 for coupling the connecting rod to a tractor 40. This connecting rod is connected to the chassis 2 by a pivot link 26 with a horizontal axis, transverse to the direction of advance of the drill 1 and orthogonal to the axis XX ′ of oscillation of the front 5 and rear 7 assemblies.
    The pivoting of the chassis 2 around the pivot axis of its pivot connection 26 to the connecting rod 22 is limited by elastically deformable stabilizing members 25 which tend to keep the chassis in a position in which the axis of the chassis around which the front assemblies and rear oscillate extends substantially horizontally, in particular in the transport configuration of the tractor unit 40, that is to say in the state separated from the ground of the seed drill 1.
    The part 23 for coupling the connecting rod to the tractor 40 can have a large number of shapes. In the example shown, it is in the form of a beam positioned transversely to the direction of advance of the tractor 40. Alternatively, it could have been produced simply in the form of a flange allowing the coupling of the seed drill to a beam.
    The actuator 24 disposed between the connecting rod 22 and the coupling part 23 is, in turn, formed by a jack. This cylinder is here a single-acting cylinder supplied by the hydraulic unit of the tractor or of the tractor unit 40. This cylinder allows you to adjust the working depth in connection with the other seeders for a self-balance between the cylinders.
    The elastically deformable stabilizing members 25 formed here by springs are, in turn, threaded on a rod carried by the connecting rod and extending in the front / rear direction of the seed drill.
    A projecting arm of the chassis 2 is also threaded on this rod. The stabilizing springs extend on either side of this arm and recall this arm in a position in which the axis of oscillation of the chassis 2 extends substantially horizontally in the transport configuration.
    The operation of the seed drill in the state coupled to the tractor 40 in the working configuration of the tractor 40 is as follows:
    During the advance of the seed drill driven by the tractor 40, the rotary members 6 for controlling the depth of the assembly 5 before cut out a slot in the soil inside which a seed or a fertilizer of a distribution line is removed. The slot is then closed using the compacting wheels 18. The working depth is controlled, during this removal, both using the fingers of the rotary members 6 for controlling the depth of the front assembly 5 and the wheels 81 constituting the rotary members 8 of depth control of the rear 7 assembly. The position of these wheels 81 of the rear assembly 7 is adjusted using the adjustable stop to vary the depression in the soil of the discs of the sowing elements.
    权利要求:
    Claims (16)
    [1" id="c-fr-0001]
    1. seed drill (1) which can be coupled to a tractor (40), said seed drill (1) comprising sowing elements (3), a chassis (2) carrying the sowing elements (3), a connection system (4) equipping the chassis (2) for a connection of the chassis (2) to the tractor (40), and two assemblies (5; 7) arranged at least partially one (5) in front, the other (7) in rear of the chassis (2) taken with respect to the direction of advance of the drill, characterized in that each assembly (5; 7) comprises at least two rotary members (6; 8) for controlling the working depth, and in that each assembly is an oscillating assembly coupled to the chassis (2) by a link (9; 10) axis pivot (XX ') pivot extending in the front / rear direction orthogonal to the axis (YY') of rotation of the rotary members (6) controlling the working depth of the assembly (5) before, said assemblies (5; 7) being assemblies oscillating independently one compared to the other.
    [2" id="c-fr-0002]
    2. seed drill (1) according to claim 1, characterized in that the assemblies (5, 7) are assemblies oscillating about a same axis (XX ').
    [3" id="c-fr-0003]
    3. seed drill (1) according to one of claims 1 or 2, characterized in that the rotary members (6) for controlling the working depth of the assembly (5) before each affect the shape of a disc ( 61) of cutting rotating on itself, each disc (61) being provided on at least one of its faces with fingers (62) projecting from said face, said fingers (62) being arranged on a center circle disposed on the 'axis (YY') of rotation of the disc (61), said discs (61) being parallel to each other and connected to each other by a cross member (63) fitted with a part of the pivot link (9) of the assembly ( 5) front to the chassis (2).
    [4" id="c-fr-0004]
    4. Seeder (1) according to claim 3, characterized in that the fingers (62) have a triangular cross section.
    [5" id="c-fr-0005]
    5. seed drill (1) according to one of claims 1 to 4, characterized in that the rotary members (8) for controlling the working depth of the rear assembly (7) each have the shape of a wheel ( 81) rotating on itself, said wheels (81) being mounted on a carriage (11) comprising a drawbar (12) coupled to the chassis (2) by a connecting piece (13) equipped with a part of the connection ( 10) pivot of the rear assembly (7) to the chassis (2) for an oscillating mounting of said rear assembly (7), the connection between the drawbar (12) and the connecting piece (13) being a connection (14) to pivoting about an axis orthogonal to the axis (XX ') of oscillation of the rear assembly (7), the connecting piece (13) being at the level of said connection (14) pivoting between the drawbar (12 ) and the connecting piece (13) equipped with a stop (15) for limiting angular displacement in the direction of lifting the drawbar (12).
    [6" id="c-fr-0006]
    6. seed drill (1) according to claim 5, characterized in that the stop (15) for limiting angular displacement in the direction of lifting the drawbar (12) carried by said connecting piece (13) is a stop ( 15) mobile adjustable in position.
    [7" id="c-fr-0007]
    7. seed drill (1) according to one of claims 5 or 6, characterized in that the wheels (81) constituting the members (8) rotary depth control of the assembly (7) rear are four in number and form in pairs a tandem coupled to said carriage (11) via a pivot link (16) with a pivot axis transverse to the direction of advance of the seed drill (1).
    [8" id="c-fr-0008]
    8. Seeder (1) according to claim 7, characterized in that the wheels (81) of a pair of wheels forming a tandem are offset axially in a direction transverse to the direction of advance of the seed drill (1).
    [9" id="c-fr-0009]
    9. Seeder (1) according to one of claims 5 to 8, characterized in that the rear assembly (7) comprises an auxiliary carriage (17) disposed behind the carriage (11) said to be main equipped with members (8) rotary depth control, in that this auxiliary carriage (17) is fitted with compacting wheels (18), in that this auxiliary carriage (17) is coupled to the main carriage (11) by a pivot link (19) axis transverse to the direction of advance of the drill (1), and in that a return member (20) is disposed between said carriages (11, 17), this return member (20) being configured to return the wheels (18) tampers of the auxiliary carriage (17) in the ground support position.
    [10" id="c-fr-0010]
    10. seed drill (1) according to claim 9, characterized in that the compacting wheels (18) are coupled to the auxiliary carriage (17) by an axle (21) oscillating about an axis orthogonal to the pivot axis of the connection (19) pivot of the carriage (17) auxiliary to the main carriage (11).
    [11" id="c-fr-0011]
    11. seed drill (1) according to one of claims 1 to 10, characterized in that the elements (3) seeders are arranged in pairs on the frame (2) symmetrically on either side of a passing plane by the pivot axis (XX ') around which the assemblies (5, 7) oscillate.
    [12" id="c-fr-0012]
    12. seed drill (1) according to one of claims 1 to 11, characterized in that the elements (3) sowers are arranged in pairs opposite one another along a line transverse to the direction d advancement of the seed drill (1), in that each sower element (3) comprises at least one disc (31) carrying at least one line (32) for distributing seeds and / or fertilizer, each line (32) for a sowing element (3) being positioned on the face side of the disc (31) of said sowing element (3) opposite to that facing the other sowing element (3) of the pair of sowing elements (3) and being provided in the vicinity from its outlet orifice of a deflector (33).
    [13" id="c-fr-0013]
    13. Seed drill (1) according to claim 12, characterized in that the discs (31) of the elements (3) sowers have a non-zero opening angle (a) and form, seen from the front of the seed drill, a V between them.
    [14" id="c-fr-0014]
    14. Seeder (1) according to one of claims 12 or 13, characterized in that each pipe (32) for distributing seeds and / or fertilizer is provided with a pipe (34) for decompression opening into the air. free.
    [15" id="c-fr-0015]
    15. seed drill (1) according to one of claims 1 to 14, characterized in that the system (4) for connecting the chassis (2) to a tractor (40) comprises at least one connecting rod (22), a part (23) for coupling the connecting rod (22) to a towing machine (40), an actuator (24) disposed between the connecting rod (22) and the coupling part (23) and at least two elastically deformable stabilizing members (25) , the connecting rod (22) which extends between the chassis (2) and the part (23) for coupling the connecting rod (22) to a towing machine (40) being connected to the chassis (2) by a link (26) pivot axis, said to be horizontal, transverse to the direction of advance of the drill (1), and orthogonal to the axis (XX ') of oscillation of the front (5) and rear (7) assemblies, the pivoting of the chassis (2) around the pivot axis of its connection (26) pivot to the connecting rod (22) being limited by said stabilizing springs (25).
    [16" id="c-fr-0016]
    16. machine (50) for working the soil comprising a tractor (40) and at least one seed drill (1) which can be coupled to the tractor (40), characterized in that the seed drill (1) conforms to one of claims 1 to 15.
    类似技术:
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    EP1976367B2|2016-01-20|Machine for working the soil, such as a disc tiller
    FR3083960A1|2020-01-24|SEEDER COUPLABLE TO A TRACTOR AND INTEGRATED SOIL WORKING MACHINE
    EP2457426B1|2013-07-10|Seeder with shifted support elements
    CA2857583A1|2013-06-27|Agricultural machine having an improved terrain following for the working members
    EP0402289A1|1990-12-12|Improved seed planting device, sowing machine and combined machine for preparing a seedbeed and for sowing using the device
    EP2534933A1|2012-12-19|Seeder with support elements constituting the transport wheels
    EP2923539B1|2020-07-01|Seed drill with built-in roller for destroying plant cover
    EP1787503B1|2010-08-18|Sowing combination
    EP2168415B1|2019-02-27|Improved device for covering furrows
    FR3095102A1|2020-10-23|Soil working machine
    EP3008987B1|2017-07-12|Seeding unit with a tamping wheel and closing discs and seed drill equipped with such a seeding unit
    EP1862052A1|2007-12-05|Seeder
    WO2020016524A1|2020-01-23|Seeder and seeding assembly couplable to a tractor unit in order to produce said seeder
    EP3375271B1|2020-01-08|Agricultural soil preparation machine comprising two mutually offset disc trains with adjustable position in the forward direction
    FR3106715A1|2021-08-06|Soil working machine
    FR3101513A1|2021-04-09|Soil working machine
    FR3101514A1|2021-04-09|Soil working machine
    FR2851121A1|2004-08-20|Agricultural soil working implement has front and rear trains with latter having soil working discs with depth control rollers
    FR3101515A1|2021-04-09|Soil working machine
    WO2021064177A1|2021-04-08|Soil-working machine
    FR3096867A1|2020-12-11|Improved arm for direct seeding device
    FR3111763A1|2021-12-31|Adjustable seed drill
    同族专利:
    公开号 | 公开日
    FR3083960B1|2020-12-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5970891A|1997-06-05|1999-10-26|Schlagel Manufacturing, Inc.|Seed planter with gauge wheels and closing wheels having horizontal fingers|
    US20100096149A1|2008-10-17|2010-04-22|Friggstad Terrance A|Disc Gang Assembly For An Agricultural Implement|FR3101513A1|2019-10-02|2021-04-09|Ev Developpement|Soil working machine|
    WO2021233857A1|2020-05-19|2021-11-25|Amazonen-Werke H. Dreyer SE & Co. KG|Seeding device and agricultural seeding and/or fertilizing machine|
    法律状态:
    2019-04-05| PLFP| Fee payment|Year of fee payment: 2 |
    2020-01-24| PLSC| Publication of the preliminary search report|Effective date: 20200124 |
    2020-06-16| PLFP| Fee payment|Year of fee payment: 3 |
    2021-07-02| PLFP| Fee payment|Year of fee payment: 4 |
    2021-11-05| CD| Change of name or company name|Owner name: AGROWIN INTERNATIONAL, FR Effective date: 20211001 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1856627|2018-07-18|
    FR1856627A|FR3083960B1|2018-07-18|2018-07-18|SEEDER COUPLABLE TO A TRACTOR MACHINE AND INTEGRATED SOIL WORKING MACHINE LEDIT SEEDER|FR1856627A| FR3083960B1|2018-07-18|2018-07-18|SEEDER COUPLABLE TO A TRACTOR MACHINE AND INTEGRATED SOIL WORKING MACHINE LEDIT SEEDER|
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