EP1052890A1

EP1052890A1 - Sowing device

Info

Publication number: EP1052890A1
Application number: EP99907456A
Authority: EP
Inventors: Heinz Dreyer; Benno Wiemeyer
Original assignee: Amazonen Werke H Dreyer SE and Co KG
Current assignee: Amazonen Werke H Dreyer SE and Co KG
Priority date: 1998-02-04
Filing date: 1999-01-29
Publication date: 2000-11-22
Also published as: WO1999039563A1; RU2211553C2; HUP0102674A2; HUP0102674A3

Abstract

The invention relates to a sowing device, comprising a roller consisting of several roller wheels which are arranged next to each other and independently of each other can be moved towards each other in a vertical direction, as well as seed coulters assigned to the roller wheels. The roller wheels are joined in a pivotable manner by means of holding devices to a supporting beam which is perpendicular to the direction of motion. The seed coulters are arranged behind the roller wheels and mounted on the holding devices of the roller wheels by means of holding arms. The upper strut of the parallelogram-like holding device and the corresponding holding arms of the seed coulter are combined to form a component. Said component is connected to the remaining holding device of the roller wheels by means of a removable connection. The invention also relates to agricultural cultivation and sowing combinations, comprising a support frame which carries at least one storage container and has an undercarriage fitted with running wheels as well as a draw-bar, and at least one coulter frame arranged behind the running wheels and connected to the support frame by means of a coupling device which can be raised and lowered. Seed coulters are joined to the coulter frame which can be displaced in the vertical plane with advancing roller elements. During cultivation of the soil the running wheels can be lifted off the ground by the coupling device or a separate lifting device, and spring elements are positioned between the roller elements and the coulter frame.

Description

Seeding device

The invention relates to a sowing device according to the preamble of claim 1

Such a sowing device is known for example from DE-GM 90 10 178. This sowing device consists of a plurality of Waizeπraden movable next to each other and independently of one another in vertical direction, the Walzenrader form the Nachaufaufwalze a soil cultivation device between the soil tillage implement and Waizeπradern sowing coulters are arranged. The roller wheels are articulated by means of brackets on a joint to a support beam running transversely to the direction of travel. A spring system is arranged between the support beam and the holders of the roller wheels. Due to the individual suspension of the roller wheels, even soil compaction is achieved on soils that are wavy transversely to the direction of travel.However, due to the arrangement of the coulters on a continuous support beam, no exact and uniform depth abiage or even covering of the soil of the seeds deposited in the soil can be achieved

The invention has for its object to easily achieve good depth guidance of the coulters and thus a uniformly deep seed placement of the soil in a printed area, even at high speeds

This object is achieved by the characterizing feature of claim 1 infoige this measure, the coulters are guided by the Waizenradem directly in their depth of penetration into the ground. This results in a very high coulter running smoothness and a very good satellite precision at a high driving speed of 15 km and more per hour. The roller wheels have a two-fold function, namely to press the ground once and at the same time To guide the coulters in their depth Here the coulters are firmly connected to the bracket for normal operation

In order to allow the coulters to move upwards when hitting ground obstacles to avoid bending and damage to the coulters, it is provided that the coulters are arranged behind the Waizenradem by means of holding arms via articulated connections on the holders of the roller wheels and by means of between the holders and the holding arms arranged spring devices are printable in the direction of the ground. Here, the coulters can deflect upwards against the force of the spring device when hitting obstacles in the ground

In order to achieve an extremely uniform depth guidance for the coulters even on uneven ground, it is provided that the mounting of the roller wheels is designed in the manner of a parallelogram. A particularly compact and advantageous arrangement of roller wheels and coulters is achieved by assigning two coulters to each roller wheel, especially when used the sowing device for mulch sowing has proven to be advantageous in that the coulters are designed as single disc coulters

In order to achieve a uniform alignment of the coulters to the Waizenradem, so that a uniform placement depth of the seeds is achieved by all disc coulters to each other, it is provided that one-way devices are arranged between the holder of the roller wheels and the holding arms of the coulters

So that the coulters can avoid obstacles to avoid damage, it is provided that the coulters are arranged on the holders of the roller wheels by means of the holding arms in such a way that they can deflect upwards against the force of the spring device relative to the roller wheels

In order to be able to adjust the satellite depth in a central manner in a simple manner, it is provided that the parallelogram-like mounts are articulated on a support beam extending transversely to the direction of travel by means of joints, that the support beam can be connected to a lifting device by means of coupling devices, that of the support beam via the coupling device can be pivoted about an axis running transversely to the direction of travel and can be adjusted into different positions So that the sowing can be carried out in an optimal manner with suitable types of coulters, it is provided that various types of coulters of sows are arranged in an interchangeable manner on the holder of the roller wheels. The articulated connection of the holders for the coulters on the holder of the roller wheels can be designed as a coupling device be so that a simple exchange is possible

In order to enable the exchange of different types of coulters with one another, it is proposed in a first solution that the upper strut of the parallelogram-type holder and the associated holding arms of the coulters are combined to form a unit, that this unit is connected to the remaining holder of the roller wheels by means of a detachable connection As a result of these measures, the formation of the upper strut of the parallelogram-type holder together with the holding arm is exchanged with one another when an exchange of different types of shares is carried out, so that the design of the upper strut is adapted to the requirements of the type of share used

In a further solution, it is provided that a releasable flange connection is provided on the holder, that the holding arm for the coulters is flanged to the holder by means of this flange connection. As a result of these measures, the holding arm is exchanged in a simple manner with the respective Saschart type, the holding arm is to be arranged in a simple manner on the flange connection of the holder

In order to align the individual coulters in the same position to the roller wheels in an advantageous manner, it is provided that the flange connection has a one-piece device for adjusting the alignment of the holding arm and / or the coulters with respect to the assigned roller wheels. A simple design of the flange connection can be achieved in that this is designed as a screw connection

In order to create an order combination or ordering machine with a high area output, which, among other things, creates a well-compacted seed bed in the area of the seed placement, the features of claim 20 are provided. By these measures, it is possible to create a solo seed drill or packer seed drill, the packers -Drilling machine or the solo drilling machine with leveling elements or soil cultivation equipment and elements W wOυ 9 ^! w9 / 3-w95 - ω63 ⁴ PCT / EP99 / 00589

Due to this versatility, the agricultural order combination can be easily or inexpensively upgraded or converted to meet the diverse requirements in agriculture. A machine to be called universal universal machine is therefore created. A tractor track elimination device can also be part of the order combination. with which the traces printed by the tractor wheels in the ground can be removed and / or leveled

In order to create a seedbed required by the practitioners as possible in one work step, it is provided that soil cultivation elements can be arranged on the support frame either in front of or behind the impellers.These soil cultivation elements can be arranged in the area in front of or behind the storage container.The assignment of the storage container to the soil cultivation elements is advantageously provided in such a way that the tillage elements are located in the area in front of or behind the storage container.This has the advantage that on the one hand the storage container is freely accessible from the side even when the side frame is folded up and filled with tillage tools, in order to load the storage container advantageously On the other hand, the tillage implements can be folded up compactly, so that there is a very small transport width

The tillage elements can be designed as drag tines or leveling elements

In order to achieve an optimal arrangement and weight distribution of the order combination, it is also possible for the storage container to be displaceably arranged in or against the direction of travel by means of actuating elements on the supporting frame

As a result of this displaceability of the storage container, the tractor or the packer wheels and roller elements arranged behind the impellers can be optimally loaded, as may be necessary in practice depending on the circumstances

An advantageous sowing device can be achieved in that the sowing device has coulters and roller elements which consist of several juxtaposed and mutually independent in height Movable roller wheels consist of which the coulters are assigned coulters and the roller wheels are arranged by means of brackets on the coulter frame running transversely to the direction of travel, the coulters behind the roller wheels are arranged on the brackets of the roller wheels by means of holding arms.This results in a strip-shaped compaction of the soil and the seeds can by means of the coulters in these areas compacted by the Waizenradem in an advantageous manner so that there are very good germination conditions for the seed deposited in the soil

The coupling device on the back of the order combination is designed in such a way that different coulter and Saeinπchtungen can be arranged on the support frame of the order combination

In order to prevent negative impeller tracks from being produced by the impellers of the order combination, it is provided that the coupling device arranged between the support frame and the coulter frame is designed in such a way that part or all of the weight attributable to the impellers from the support frame and storage container and tillage implement is fully or partially transferable to the roller elements

In order to drive the metering element in a simple manner, it is provided that a metering device which can be driven and which is preferably designed as a spur wheel is arranged on the support frame via a holding arm

In order to be able to easily adapt the length of the support frame or drawbar to the tillage elements arranged on the support frame, it is provided that the support frame has at least one separation point in which a frame extension piece can be used, on which the tillage equipment and or tillage elements can be arranged

Furthermore, it may be advantageous that an axle with wheels is arranged on the coupling device, via which the support frame or the drawbar are supported on the ground.This is advantageous if the order combination is pulled by an articulated tractor or a tractor with a low lifting force of the three-point linkage In this case, no unacceptable pressure forces are transferred to the tractor Further details of the invention can be found in the remaining subclaims of the example description and the drawings

1 shows the order combination with integrated device in side view,

2 shows the sowing device in a side view, a pin diagram representation and an enlarged scale,

3 is a side view of the front of the sowing device,

4 shows a rear assembly in side view,

5 shows the sowing device in a top view, in a partial view and in a pinch view,

6 shows the sowing device with disc coulters for mulch sowing,

7 shows the seeding device with normal shares

8 shows the device with disk shares in a light version,

9 shows the device with a differently designed flange connection according to the sash coulters according to FIG. 6,

10 shows the seeding device according to FIG. 9, but with the replaced unit with normal coulters,

11 is an order combination in side view,

12 shows a further embodiment of the order combination,

13 shows another order combination and

14 shows another order combination

The sowing device 1 is part of an order combination. The order combination has the support frame 2, which is supported on the floor 4 by the wheels 3 and can be coupled to a tractor (not shown) by means of the coupling device 5 of the drawbar 6. In the front area of the support frame 2, this is W wOυ 9 ^y 9 ^y / 3 ^j 9 ^y s56o3 ^j 'PCT / EP99 / 00589

Soil cultivation device 7 with the pianier rail 8, the floor roller 9, the tillage tines 10 and the harrow 11 are arranged behind the wheels 3 by means of the three-point power lift 12, the sowing device 1 is arranged on the support frame 2 in a manner that can be lifted out the storage container 13 is arranged with a metering and pneumatic conveying and distribution device 14, via which the seed and / or fertilizer located in the storage container 13 is fed to the individual coulters 16 of the sowing device 1 via the supply hoses 15

On the coupling device 17, the support beam 19 extending transversely to the direction of travel 18 is arranged. The base roller 20 is arranged on this support beam 19. The base roller 20 consists of the roller wheels 21 which are arranged next to one another and can be moved independently of one another in vertical direction. The roller wheels 21 are by means of parallelogram-type holders 22 by means of Joints 23 hinged to the crossbar 19 The upper strut 22 'of the bracket 22 has a compression spring 24 so that the upper bracket can be pushed together

The roller wheels 21 are arranged in two consecutive transverse rows. Behind each roller wheel 21 are two coulters 16, which are designed as single-disc coulters. The coulters 16 are arranged on the brackets 22 of the roller wheels 21 by means of holding arms 25. The holding arms 25 of the coulters 16 are by means of the arranged in the upper bracket 22 'arranged compression spring 24 against the floor and can, when hitting stones around the hinge axis

26 against the force of the spring 24 by compressing the bracket 22 'upwards. The bracket 22 of the roller wheels 21 are adjusting devices

27 assigned so that the coulters 16 are to be set at the same height relative to the Waizenradem 21

On the holding arms 25 for the coulters 16, the harrow elements 27 are arranged behind the coulters 16

The coulters 16 are arranged by means of the holding arms 25 on the brackets 22 of the roller wheels 21 in such a way that they can deflect upwards against the force of the spring device 24 with respect to the roller wheels 21 when they encounter obstacles in the ground W wOu 99/3 ^ 95s6o3s <* PCT / EP99 / 00589

The spring devices designed as hydraulic cylinders 28 are arranged between the brackets 22 for the roller wheels 21 and the coupling elements 17 or the supporting beam 19. A part of the weight of the supporting frame 2 and the storage container 13 can be transferred to the roller wheels 21 of the roller 20 via the spring device 28 28 are connected to one another via lines, so that the roller wheels 21 evenly press the ground even on uneven surfaces transverse to the direction of travel 18 and ensure good and uniform depth guidance of the coulters 16

The upper link 12 'of the three-point linkage 12 is designed as a long-adjustable handlebar.This allows the support beam 19 to be pivoted about an axis running transversely to the direction of travel 18 and is adjustable in the desired position.This allows the depth of penetration of the coulters 16 into the ground 4 and thus the placement depth of the seed in the soil 4. The coulters 16 are precisely guided in height by the leading roller wheels 21, so that the coulters 16 run smoothly even at high driving speeds

The disc coulters 16 can be exchanged for other types of coulters, such as, for example, double disc coulters, normal coulters, etc. The articulated connection with which the holding arms 25 are arranged on the brackets 22 of the roller wheels 21 can be designed as a coupling device

The seeding device 30 according to FIG. 6, like the seeding device 1, is part of an order combination. The roller wheels 21 are further arranged on the support beam 19 by means of the parallelogram-type holder 22 with the lower strut and the upper strut 22 ', in which a spring 24 is integrated the parallelogram-type holder 22 has the rear connection 31. The rear connection 31 is connected in an articulated manner to the upper strut 22 'via a flange plate 32. The flange plate 32 is part of the detachable flange connection 33, by means of which the holding arm 34 of the sack 16 on the holder 22 of the Roller wheel 21 is arranged

The flange connection 33 is designed as a screw connection

By loosening the two screws 35 of the screw connection, the holding arm 34 with the disk coulters 16 can be removed in a heavy version for the mulch seed and against the holding arm 36 with the normal coulters 37 according to W wOυ 9 w9 / w395 ^if 6 ^b 3 ^ό PC T7EP99 / 00589

Fig. 7 or against the holding arm 38 with the Scheibensaschareπ 39 in light execution according to FIG. 8 are exchanged

The flange connection 33 is designed in such a way that it is designed as an adjusting device for adjusting the alignment of the holding arms 34 and the coulters 16 with respect to the associated roller wheels 21, so that all coulters 16 are aligned with the respective roller wheel 21 in a simple manner the flange plate 32 or in the holding arm 34 as an elongated hole

The exemplary embodiment according to FIGS. 9 and 10 differs from the exemplary embodiments according to FIGS. 6 and 8 in that the flange plate 40, which is arranged on the rear connection 31 of the parallelogram-type holder 22, is not simultaneously used as a fastening for the upper strut 22 ' The parallelogram-type bracket 22 is used here. The holding arm 41 and the upper strut 22 'of the parallelogram-type bracket 22 are designed as a structural unit. If the disk cluster 16 according to FIG. 9 is replaced, for example, with the standard cluster 37 according to FIG. 5, the screw connection 35 of the detachable flange connection 42 is loosened and the holding arm 41 with the upper strut 22 ', which form a structural unit, is replaced by the holding arm 41 with the sash arm 37 and the upper strut 43, which form a structural unit

The order combination according to FIG. 11 is intended for mulch sowing. The order combination has the elongated support frame 101, which can be supported on the floor 103 via the wheel 102. During the ordering process, the wheels 102 are lifted off the floor 103, so that the wheels 102 do not produce any wheel marks The support frame 101 has on its front side the pulling and coupling device 104 for coupling to the power lift of an agricultural tractor. The high-adjustable parking supports 105 are arranged on the coupling device 104. Furthermore, the track looseners 106 are arranged on the coupling device 104 in the area behind the tractor wheels

The support frame 101 has a separating point 107 with flange points 108 in the front area, via which extension pieces 109 can be inserted into the support frame 101 for length adjustment to the respective requirements

The storage container 110 is arranged on the support frame 101. The storage container 110 has two metering elements 11 in its lower region, which can be driven in an adjustable manner via the drive element designed as a spur wheel 112 by means of a transmission device (not shown)

On the rear side of the support frame 101, the coupling device 114, which can be raised and lowered hydraulically by means of hydraulic elements 113, is arranged for coupling coupling devices 115

Saeinπchtung 115 is fed via the transport lines 117 which can be pressurized with compressed air by the blower 116, the material in the storage container 110 is fed via the metering devices 111 in an adjustable manner and is supplied via the distributor heads 118 and the distributor hoses 119

The soil cultivation device 120 with the soil cultivation elements 121 is arranged on the frame piece 109 on the front of the support frame 101 in the area in front of the storage container 110. In the area behind the storage container 110, the soil cultivation device designed as a pianing rail 122 is arranged. The arrangement in the area in front of and behind the storage container 110 has the advantage in particular in order machines with large working widths, in which the tillage elements are arranged on collapsible side frames, that the side parts can be folded up compactly with the tillage elements for the transport position, so that a compact transport width is achieved

On the coupling device 114, the arrangement 115 with the sash coulters 123 and the bottom roller 124 is arranged. The bottom roller 124 consists of the roller wheels 125 which are arranged next to one another and can be moved independently of one another in vertical direction. The roller wheels 125 are connected to the crossbar 128 by means of joints 127 by means of joints 126 Articulated The upper strut 129 of the holder 126 has a compression spring 130 so that the upper strut 129 can be pushed together

The roller wheels 125 are arranged in two consecutive transverse rows. Behind each roller wheel 125 are two coulters 123, which are designed as single-disc coulters. The coulters are attached to the brackets 126 of the roller wheels 125 by means of holding arms 131 the upper strut 129 arranged compression spring 130 printed against the ground 103 and when hitting stones around the hinge axis can deflect against the force of the spring 130 by pressing the strut 129 upwards. The holder of the roller wheels 125 are assigned adjustment devices so that the seed coulters 123 can be set at the same height relative to the roller wheels

The spring devices designed as hydraulic cylinders 132 are arranged between the holders for the roller wheels 125 and the coupling elements or the support beam 128. The weight of the support frame 101 and the storage container 110 can be transferred to the roller wheels 125 of the roller 124 via the spring device 132, by means of the hydraulic cylinder 113 the coupling device 114 loads the coupling device 114 and so the impellers 102 can be lifted off the floor 103. The hydraulic cylinders 132 are connected to one another by lines, so that the roller wheels 125 evenly press the floor 103 across the uneven surfaces to ensure good and even depth control of the Ensure coulters

The soil is processed by the soil cultivation elements 121 and leveled by the leveling rail 122. The soil 103 is pressed on by the roller wheels 125, so that the seed coulters 123 can deposit the seed in solidified strips in the soil 103. Because of the special design of the coulters, a high driving and working speed possible, so that high area performances are possible

The order combination according to FIG. 12 differs from the order combination according to FIG. 11 in that no tillage implements are arranged on the support frame 101 and the machine is thus designed as a solo seed drill. In order to achieve the most compact possible construction of the machine, the extension piece 109 according to FIG 11 removed from the support frame 101 and the coupling element 104 is arranged in a sealed manner on the storage container 110, so that there is a relatively short length of the machine. It would also be possible to provide a further flange point on the rear side of the storage container 110 in the support frame 101 in order to also have extension pieces here to be arranged or removed so that a further short construction can be achieved

The machine according to FIG. 13 differs from the machine according to FIG. 11 in that another sowing device is arranged on the coupling device 114. This sowing device 133 has the soil-compacting wedge ring roller 134 and the ^{, y / j} ys ^b. PCT / EP99 / 00589

sowing coulters 135 arranged in the compacted strips of the ground. If the impellers 102 are not lifted off the ground, the track spreaders 136 are arranged behind the impellers 102

The machine according to FIG. 14 differs from the machine according to FIG. 11 in that normal coulters 135 are arranged on the dome device 114 without an associated roller

If necessary, the dome 114, according to FIGS. 11 to 14, can be exchanged for a support element (not shown) and having two impellers, so that the dome 114 is supported on the ground 103 via the impellers 102 so that the weight is not borne on the tractor In a manner not shown, the storage container 110 can be arranged in and against the direction of travel by means of fastening elements which can be displaced relative to fastening elements, in order to achieve an optimal center of gravity of the machine. This displacement can be carried out by means of a suitable actuating element, such as hydraulic cylinders

Claims

claims

1

Sowing device, consisting of a roller consisting of several rollers arranged side by side and independently movable in vertical direction to each other, and saschars assigned to the roller wheels, the roller wheels being articulated by means of brackets on a support beam running transversely to the direction of travel, characterized in that the seed coulters (16) are behind the roller wheels (21) are arranged on the holder (22) of the roller wheels (21) by means of holding arms (25).

2

Sowing device according to claim 1, characterized in that the coulters (16) are arranged behind the roller wheels (21) by means of holding arms (25) via articulated connections on the holders (22) of the roller wheels (21) and by means of between the holders (22) and the holding arms (25) arranged spring devices (24) in the direction of the bottom (4) are printable

3

Sowing device according to claim 1, characterized in that the holder (22) of the roller wheels (21) is designed in the form of a parallelogram

4

Sowing device according to claim 1, characterized in that each roller wheel

(21) two seed coulters (16) are assigned

5

Sowing device according to claim 1, characterized in that the coulters (16) are designed as single disc coulters 14 9/39563 PCT / EP99 / 00589

6

Sowing device according to claim 1, characterized in that adjusting devices (27) are arranged between the holder (22) of the roller wheels (21) and the holding arms (25) of the coulters (16)

7

Sowing device according to claim 6, characterized in that the

Adjustment device is designed as an adjustable stop

8th

Sowing device according to claim 1, characterized in that the coulters (16) are arranged on the brackets (22) of the roller wheels (21) by means of the holding arms (25) in such a way that they counter the force of the spring device (24) with respect to the roller wheels (21 ) can dodge upwards

9

Sowing device according to one or more of the preceding claims, characterized in that the parallelogram-like brackets (22) are articulated on a support beam (19) extending transversely to the direction of travel (18) by means of joints (23), that the support beam (19) is coupled to by means of coupling devices A lifting device (12) can be connected so that the supporting beams (19) can be pivoted about an axis running transversely to the direction of travel (18) and can be adjusted into different positions via the dome

10

Sowing device according to one or more of the preceding claims, characterized in that different types of coulters of sows are selectively interchangeable on the holder (22) of the roller wheels (21)

11

Savorπchtung according to claim 10, characterized in that the

Articulated connections are designed as coupling devices

12th

Savorπchtung according to one or more of the preceding claims, characterized in that the upper strut (22 ', 43) of the parallelogram-like holder (22) and the associated holding arms (41) of the coulters (16, 37) to one Unit are summarized that this unit is connected by a detachable connection (42) to the rest of the holder (31) of the roller wheels (21)

13

Sowing device, in particular according to claim 1 and / or 12, characterized in that a detachable flange connection (33) is provided on the holder (22, 31), that by means of this flange connection 33 the holding arm (34, 36) for the coulters (16, 37, 39) is flanged to the holder (22, 31)

14

Sowing device according to claim 13, characterized in that the flange connection (33) has a setting device for adjusting the alignment of the holding arm (34) and / or the coulters (16) with respect to the assigned roller wheels (21)

15

Sowing device according to claim 12 or 13, characterized in that the releasable

Connection is designed as a screw connection (33, 42).

16th

Sowing device according to claim 12 or 13, characterized in that at least two different structural units and / or holding arms with sash coulters (16, 37, 39) are provided which can be connected in an interchangeable manner by means of the detachable connection (33, 42) of the seeding device (30) are

17

Sowing device according to claim 16, characterized in that the coulters (16) in heavy design for the mulch sowing are provided with correspondingly designed holding arms (34, 41)

18th

Sowing device according to claim 16, characterized in that selected coulters with appropriately designed holding arms (38) are provided as disc coulters (39) in a light design for normal sowing 19

Sowing device according to claim 16, characterized in that sowing coulters designed as boot coulters or normal coulters (37) with correspondingly designed holding arms (36, 41) are provided

20th

Agricultural order combination, comprising a support frame (101) carrying at least one storage container (110) with a running wheel (102) and a drawbar (104), at least one on the support frame (101) via a coupling device (104) which can be raised and lowered. Behind the runner wheels (102) are arranged coulter frames, on which sowing coulters (123) with leading roller elements (125) are movably arranged in an upright plane, with the runner wheels (102) via the coupling device (113, 114) or a separate lifting device during the order work from Soil can be lifted off, and spring devices (132) are arranged between the roller elements (125) and the coulter frame

21

Order combination according to claim 20, characterized in that soil cultivation elements (120, 121) can be arranged on the support frame (101) either in front of or behind the wheels (102)

22

Order combination according to claim 21, characterized in that the tillage elements (120, 121) are arranged in the area in front of and / or behind the storage container (110)

23

Order combination according to claim 21, characterized in that the tillage elements (120) are designed as drag tines (121) and / or leveling elements (122)

24

Order combination according to Claim 20, characterized in that the storage container (110) is arranged on the support frame (101) so as to be displaceable in and against the direction of travel by means of actuating elements 25th

Order combination according to claim 20, characterized in that the order combination is assigned elements (106) for eliminating the tractor tracks

26

Order combination according to claim 20, characterized in that the sowing device has coulters (123) and roller elements (124) which consists of a plurality of roller wheels (124) which are arranged next to one another and can be moved independently of one another in vertical direction, the roller wheels (124) having are assigned and the roller wheels (124) are arranged by means of brackets (126) on the coulter frame (128) running transversely to the direction of travel, the coulters (123) being arranged behind the roller wheels (125) by means of holding arms on the bracket of the roller wheels (125)

27

Order combination according to one or more of the preceding claims, characterized in that the coulters (123) are arranged behind the roller wheels (125) by means of holding arms via articulated connections on the holders of the roller wheels (125) and by means of spring devices (132) arranged between the holders and the holding arms. are printable towards the bottom

28

Order combination according to one or more of the preceding claims, characterized in that the holder of the roller wheels (125) is designed in the form of a parallelogram

29

Order combination according to one or more of the preceding claims, characterized in that two coulters (123) are assigned to each roller wheel (125)

30

Order combination according to one or more of the preceding claims, characterized in that the coulters (123) are designed as single disc coulters 18 9/39563 PCT / EP99 / 00589

31

Order combination according to one or more of the preceding claims, characterized in that the coupling device (114) arranged between the support frame and the coulter frame is designed such that some or all of the impellers (102) are carried by the support frame (101) and storage container (110 ) and the soil cultivating device (122) resulting weight can be transferred in whole or in part to the roller elements (124 125)

32

Order combination according to one or more of the preceding claims, characterized in that a drive element, preferably designed as a spur wheel (1 12), is arranged on the support frame (101) via a holding arm via a dosing means (111) which is associated with the storage container (110)