WO2020046115A1

WO2020046115A1 - A device that is movable in a direction of travel over the land that is to be worked by means of the device as well as self-propelled agricultural machine

Info

Publication number: WO2020046115A1
Application number: PCT/NL2019/050539
Authority: WO
Inventors: Hendrik Willem BREURE
Original assignee: Ploeger Oxbo Europe B.V.
Priority date: 2018-08-30
Filing date: 2019-08-20
Publication date: 2020-03-05
Also published as: NL2021517B1; EP3843528A1

Abstract

The invention relates to a device that is movable in a direction of travel over the land that is to be worked by means of the device, wherein the device is provided with a lifting mechanism for picking up a product from the land, as well as with a transport mechanism that is positioned relative to the lifting mechanism in such a way that the product picked up from the land by means of the lifting mechanism can be moved onto the transport mechanism, wherein by means of the transport mechanism the product can be conveyed in a transport direction substantially transversely to the direction of travel and can be deposited on the land. The invention further relates to a self-propelled agricultural machine, for example a self-propelled merger, said self-propelled agricultural machine being provided with a device described here.

Description

Title: A device that is movable in a direction of travel over the land that is to be worked by means of the device as well as self-propelled agricultural machine Description

The invention relates to a device that is movable in a direction of travel over the land that is to be worked by means of the device, wherein the device is provided with a lifting mechanism for picking up a product from the land, as well as with a transport mechanism that is positioned relative to the lifting mechanism in such a way that the product picked up from the land by means of the lifting mechanism can be moved onto the transport mechanism , wherein by means of the transport mechanism the product can be conveyed substantially transversely to the direction of travel in a transport direction and can be deposited on the land.

The invention further relates to a self-propelled agricultural machine, for example a self-propelled merger, said self-propelled agricultural machine being provided with a device described in this document.

A self-propelled merger (or belt rake) of this kind is known for example from EP 2 661 1 69 A2. The self-propelled agricultural machine known from this publication comprises a device with which the land is to be worked. The device comprises a lifting mechanism for picking up a product, for example hay, and a conveyor belt on which the product is placed by means of the lifting mechanism . On the conveyor belt the product is moved transversely to the direction of travel of the merger and at the end of the conveyor belt it is deposited back onto the land. With the known device, the windrow to be formed may become irregular in the direction of travel, especially at relatively high speeds of travel. An irregularly formed windrow is unfavourable for further operations, for example such as pressing or chopping.

In a first aspect, an aim of the invention is to provide an improved device. In a second aspect, an aim of the invention is to provide a device in which the product can be deposited on the land in the desired manner in the direction of travel, even at relatively high speeds of travel.

This aim of the invention is achieved with the device as claimed in claim 1 .

In the claimed device, near an outlet of the transport mechanism where the product is to be deposited on the land by means of the transport mechanism , a displacement mechanism movable in a direction of movement is provided that is arranged relative to the transport mechanism in such a way that the product, after leaving the transport mechanism , reaches the displacement mechanism moving in the direction of movement in such a way that the speed of the product in the direction of travel of the device during depositing of the product on the land is to be lowered by the direction of movement.

By displacing the device in the direction of travel over the land, the product comprising the plant material has, after leaving an outlet of the transport mechanism , a speed in the direction of travel that is identical or substantially identical to the speed of travel in the direction of travel of the device. By lowering the speed of the product in the direction of travel by means of the displacement mechanism during operation of the device, it is possible to prevent or in any case limit that the product, which for example comes off a conveyor belt of the transport mechanism , begins to roll over the land. Rolling is caused because the transport mechanism extends transversely to the direction of travel and the product, for example grass, is led away sideways (transversely to the direction of travel) . Because the land has no speed, but the product does, the result is that owing to the speed difference the product on landing may begin to roll or may overturn. As a result, for example the deposit to be formed on the land with the device, for example a windrow, becomes irregular, which is unfavourable for further operations, for example such as pressing or chopping. It has been found in practice that this problem occurs in particular at higher speeds in the direction of travel, in particular starting from 12 km/h . Since from a commercial viewpoint it is a trend for the agricultural operation on the land that is to be carried out with the device to be carried out with ever increasing speeds of travel , the problem of irregular deposition of the product arises more and more often. By actively lowering the speed of the product in the direction of travel by means of the displacement mechanism during operation of the device, it is possible to drive over the land at relatively high speeds without this leading to problems during deposition of the product on the land. By ensuring correct deposition, the further operations that are to be carried out can also be carried out efficiently. The productivity of the total process of operation of the product on the land, a component part of which is the operation to be carried out with the device, can be increased significantly as a result. In one aspect, the direction of movement of the displacement mechanism is a direction of rotation so that the movement of the displacement mechanism comprises rotating the displacement mechanism about a rotation axis. A rotary movement of the displacement mechanism proved especially favourable for the quality of deposition at relatively high speeds of travel at which the device is moved over the land. Therefore the part of the displacement mechanism on which the product mainly ends up preferably has a direction of rotation that is substantially opposite to the direction of travel. In this way the speed of the product in the direction of travel to be deposited on the land can be reduced effectively.

In an alternative embodiment the displacement mechanism may be a conveyor belt. This conveyor belt comprises vertical rollers round which the conveyor belt is passed. The conveyor belt is movable in a direction of movement which, on the side of the conveyor belt where the product reaches the conveyor belt, is substantially opposite to the direction of travel. The product that reaches the conveyor belt via the transport mechanism , is moved by the direction of movement thereof in a direction opposite to the direction of travel so that the speed component of the product in the direction of travel is decreased so that in an alternative manner the advantages described above of a lower speed of the product in the direction of travel can be achieved.

It was found to be especially advantageous to make a (rotary) speed of the displacement mechanism dependent on a speed of travel in the direction of travel of the device movable over the land. At relatively low speeds, for example 5 km/h , the likelihood of irregular deposition of the product is relatively low. If the speed of travel increases, there is increasing likelihood of irregular deposition. At a higher speed of travel, it proved to be especially advantageous to have a higher (rotary) speed of the displacement mechanism , so that the speed in the direction of travel at which the product comes into contact with the ground can be kept almost constant regardless of the speed of travel at which the device is moved over the land. This promotes a relatively constant quality of the process of deposition of the product on the land.

It is for example possible for a speed of the displacement mechanism that is to be created with a drive unit to be adjusted by means of a regulating mechanism and/or sensors. This can be adjusted stepwise or continuously, for example based on the speed of travel of the device over the land. A speed of the displacement mechanism can also be set automatically by mechanical coupling to a drive mechanism for moving the device or to a wheel following the land. A mechanical solution of this kind ensures in a relatively simple manner that the speed of the displacement mechanism in the direction of movement automatically follows the speed of travel of the device over the land.

In a further aspect the transport mechanism comprises a conveyor belt which, depending on the direction of rotation, can discharge the product via a first or a second outlet, wherein the displacement mechanism is mounted at each outlet.

In this way improved deposition of the product on the land can be achieved with the device, regardless of the transport direction, on the left or right relative to the speed of travel.

The displacement mechanism may also be configured in such a way that it is movable between a first active position in which, in operation, the product reaches the displacement mechanism, and an inactive position in which the product, after leaving the transport mechanism, cannot reach the displacement mechanism.

This variant may be advantageous if two devices are movable transversely to the direction of travel, wherein between the devices, with so-called central deposition, a displacement mechanism is to be positioned in the active position for controlling the deposition of the product by means of the displacement mechanism, wherein if the devices are positioned against each other or almost against each other, for example for combined deposition from both devices left or right relative to the direction of travel, the displacement mechanism can be moved from the transport path of the product to the inactive position on the one hand to make it possible for the two devices to be moved against each other and on the other hand to ensure that the product, on being transferred between the first device to the second device, does not experience any hindrance of the displacement mechanism.

In another aspect, a self-propelled agricultural machine is presented, for example a self-propelled merger, said self-propelled agricultural machine being provided with a device as described in this document. The aforementioned advantages of the device are also applicable to a self-propelled agricultural machine provided with the device and to the use of a self-propelled agricultural machine of this kind and therefore these are not repeated here. The aspects described above will be explained hereunder on the basis of an embodiment example in combination with the figures. The invention is not, however, limited to the embodiment example described hereunder. Rather, a number of variants and modifications are possible, which also make use of the idea of the invention and consequently fall within the scope of protection. In particular, the possibility is noted for the features/aspects that are mentioned individually in the description and/or are shown in the figures to be combined with the features of the claims in so far as compatible.

Fig. 1 shows a side view of a self-propelled merger in the transport operating mode;

Figs. 2a, b show a side view of a self-propelled merger in the operating mode for carrying out an agricultural operation on the land, more particularly forming a windrow on the land, wherein in Fig. 2a the two devices of the merger are mounted close together and in Fig. 2b there is a distance between them ;

Fig. 3 shows the device according to the invention in a perspective view;

Fig. 4 shows the device as shown in Fig. 3 in a perspective view from another angle;

Figs. 5a-c show a part of the device by means of rear views in which in each rear view the displacement mechanism assumes different orientations.

In the figures, the same components are provided with the same reference signs.

Figs. 1 and 2a, b show a self-propelled agricultural machine, more particularly a self-propelled merger (belt rake) 1 . Although the invention described in the claims is especially suitable for application in a self-propelled merger 1 , the invention described in the claims may also be applied in other self-propelled haymaking machines or self-propelled agricultural machines, especially agricultural machines that are to be moved at relatively high speeds of travel in the direction of travel over the land for carrying out an agricultural operation, wherein the product is discharged transversely/sideways relative to the direction of travel on the land.

The merger 1 is provided with at least one motor (not shown), two elongated devices 3a, 3b, a first wheel axle 5 (front wheel axle) and a second wheel axle 7 (rear wheel axle) located at a distance from the first wheel axle 5. The first wheel axle 5 and the second wheel axle 7 are to be driven by means of the motor for moving the merger 1 over the land or over public roads. As an alternative, also only the first wheel axle 5 or the second wheel axle 7 is to be driven by means of the motor. The first wheel axle 5 and/or the second wheel axle 7 may be of steerable configuration for steering the agricultural machine in the field or over the road.

By means of the two elongated devices 3a, 3b, in use an agricultural operation is to be carried out on the land. More particularly each elongated device 3a, 3b shown is provided with a transport mechanism in the form of a conveyor belt 1 1 a, 1 1 b as well as with a product-lifting mechanism 13a, 13b for picking up a plant- material product from the land, for example for picking up plant material such as hay, grass or alfalfa or a similar product, and moving the product onto the conveyor belt 1 1 a, 1 1 b, by means of which the product is to be deposited back onto the land in a transport direction left or right relative to the direction of travel R of the merger as represented by arrow R in Fig. 2a, for example for forming a windrow. A windrow is a row of plant material that is put down on the land by harvesting machines such as the merger 1 shown, for subsequent operation. The subsequent operation may for example be chopping, pressing or picking up with a self-loader. Space is made for the tires/wheels 21 , 22, 23, 24 of the merger 1 or another harvesting machine for a subsequent harvesting operation or for carrying out a subsequent agricultural operation on the land.

In the working position of the merger 1 shown in Fig. 2a, the conveyor belts 1 1 a, 1 1 b of the two elongated devices 3a, 3b are positioned relative to one another in such a way that the conveyor belts 1 1 a, 1 1 b can form a whole for depositing the product on the left or right relative to the direction of travel R of the merger 1 . Optionally the conveyor belts 1 1 a, 1 1 b can deposit the product on the left and on the right relative to the direction of travel R of the merger 1 . In the situation shown in Fig. 2a, the product, for example grass, is picked up by means of the product-lifting mechanisms 13a, 13b over almost the whole width B, and discharged again in rows on the land via the conveyor belts 1 1 a, 1 1 b. In the working position, the two elongated devices 3a, 3b are located in front of the front wheel axle so that the wheels of the merger cannot travel over the product that is to be picked up, since the product is picked up with the devices 3a, 3b in front of the machine and is put down in such a way that the wheels of the merger 1 cannot normally come into contact with the grass laid down in rows by the devices 3a, 3b. The width B is at least 1 .5 times greater than the width between the outsides of the front wheels or rear wheels of the merger 1 .

In the merger 1 , each elongated device 3a, 3b is movable from a transport position as shown in Fig. 1 to a working position as shown in Figs. 2a, b and vice versa. In the transport position of the devices 3a, 3b, the maximum width of the merger 1 is smaller than the width B (Fig. 2a) in the working position of the devices 3a, 3b. The merger 1 has a folding-in and folding-out mechanism 1 5 for moving the elongated devices 3a, 3b between the working position and the transport position. Owing to the elongated devices, the merger 1 is at least 1 .5 times wider in the working position than in the transport position. The length of an elongated device is 2.5-7.5 metres, normally about 5 metres. The folding-in and folding-out mechanism 1 5 operates hydraulically and will be explained in more detail hereunder. In the working position (Figs. 2a, b) each elongated device 3a, 3b makes an angle of 90 degrees with the direction of travel of the agricultural machine, and preferably this angle is between 80 and 100 degrees. In the transport position (Fig. 1 ) each elongated device 3a, 3b makes an angle of 0 degrees with the direction of travel of the agricultural machine. This angle may vary between 0 and 15 degrees, preferably between 0 and 5 degrees. In the merger 1 shown in the figures, the angle, seen from a top view (not shown), between the working position and the transport position of each device 3a, 3b is about 90 degrees. In other words, by means of the folding-in and folding-out mechanism 1 5 the at least two elongated devices 3a, 3b are located in front of the front wheel axle 5 in the working position, wherein in the transport position the at least two elongated devices are located largely or completely behind the front wheel axle 5.

The two elongated devices 3a, 3b are of almost identical configuration and are mounted in mirror image by means of the folding-in and folding-out mechanism 1 5 on the chassis 40 of the merger 1 .

The merger 1 further comprises a cabin 1 7, which is positioned so that it is located above the first wheel axle 5 between the working position and the transport position of the elongated devices. In this way an optimum view is provided for the driver both in the transport operating mode (Fig. 1 ) of the merger 1 and in the working position mode (Figs. 2a, b) of the merger 1 . In the working position, each device 3a, 3b is located in front of the first wheel axle 5, wherein in the transport position each device 3a, 3b is located largely or even completely behind the first wheel axle 5.

In the working position of the devices 3a, 3b, the agricultural operation is to be carried out on the land over substantially the length of each elongated device. The lengths of the devices 3a, 3b added together correspond, in the working position shown in Fig. 2a, to the width B. The two elongated devices 3a, 3b are each provided with a displacement unit 25 with which, in the working position, the distance A (Fig. 2b) between the at least two elongated devices 3a, 3b seen in the longitudinal direction, shown by arrow B, of the two elongated devices can be adjusted. It is also possible to provide only one of the devices 3a, 3b with a displacement unit 25 for moving one device relative to the other device to the left or to the right relative to the direction of travel R.

Although not shown in Figs. 1 and 2a, b, the devices comprise, at least near the outermost outlet of the transport mechanism 1 1 a, 1 1 b where the product is to be deposited on the land by means of the transport mechanism, a displacement mechanism movable in a direction of movement (not shown) that is arranged relative to the transport mechanism in such a way that the product, after leaving the transport mechanism, reaches the displacement mechanism moving in the direction of movement in such a way that the speed of the product in the direction of travel R of the device 3a, 3b during depositing of the product on the land can be lowered by the direction of movement. An embodiment example of such a displacement mechanism 50 that is movable in a direction of movement is shown in Figs. 3 and 4. Since the merger 1 shown is provided with displacement units 25 so that central deposition of the product between the devices 3a, 3b is possible, the merger 1 is also to be provided with a displacement mechanism (not shown) mounted between the devices 3a, 3b and moving in the direction of movement. In this way it is ensured that central deposition at higher speeds of travel of the merger 1 can be carried out optimally with a view to further operations that are to be carried out on the land. The displacement mechanism mounted between the devices 3a, 3b is configured in such a way that it is movable between a first active position in which, in operation, the product reaches the displacement mechanism and an inactive position in which the product cannot reach the displacement mechanism after leaving the transport mechanism. By moving the displacement mechanism to the inactive position, the devices 3a, 3b can be positioned against each other or almost against each other, for example for combined deposition from both devices left or right relative to the direction of travel and the displacement mechanism can also be moved from the transport path of the product in order to ensure that the product, on transfer between the first device 3a to the second device 3b or vice versa, does not experience any hindrance of the displacement mechanism.

Fig. 3 shows one of the two elongated devices 3a, which is provided with the conveyor belt 1 1 a as well as with the product-lifting mechanism 13a for picking up the plant-material product from the land, and moving the product onto the conveyor belt 1 1 a, by means of which the product is to be deposited back onto the land in a transport direction to the left relative to the direction of travel R of the merger 1 , for example for forming a windrow. Near a first outlet 12 of the conveyor belt 1 1 a where the product is to be deposited on the land, a displacement mechanism 50 rotatable in a direction of rotation M about a rotation axis 20 is provided, which is mounted relative to the conveyor belt 1 1 a in such a way that the product, after leaving the conveyor belt 1 1 a, reaches the displacement mechanism 50 moving in the direction of movement, so that owing to the direction of rotation M, the speed of the product in the direction of travel of the device 3a can be lowered during depositing of the product on the land.

As shown in Fig. 3, the displacement mechanism 50 in the form of a wheel 30 may be oriented relative to the transport mechanism in such a way that, seen in the direction of travel, the distance between the displacement mechanism 50 and the transport mechanism in the form of a conveyor belt 1 1 a decreases. This can be achieved in that, seen in top view, the rotation axis 20 makes an angle a with the longitudinal direction L of the device 3a. This kind of orientation of the displacement mechanism 50 which for example is provided by the configuration of the rotation axis 20 of the displacement mechanism 50 at the angle a, promotes deposition of the product on the land. The angle a is at most 60 degrees, preferably at most 30 degrees. It is also possible to make this angle a adjustable, so that for example an operator of the device 3a is able to set the angle a at a desired angle, possibly even remotely from the cabin 17. The rotation axis of the displacement mechanism 50 may also extend substantially transversely (not shown) at the outlet 12, and consequently extend parallel to the longitudinal direction L of the devices 3a. The product essentially reaches a lower part of the displacement mechanism 50, shown by arrow 26 (Fig. 4) and the dotted line 28. In particular directly under the rotation axis 20, that part 26 has a direction of rotation that is opposite to the direction of travel R of the merger 1 and the device 3a as shown in Fig. 2a.

The wheel 30 of the displacement mechanism 50 comprises spokes 32, otherwise called teeth , which as is shown are mounted as trailing spokes on the wheel 30. In operation, the wheel 30 and spokes 32 ensure that the product located thereon is slowed down in the direction of travel, for improved deposition on the land.

Figs. 5a-c show different orientations from a rear view of the displacement mechanism 50. I n Figs. 5a, 5b the orientation is shown relative to a displacement mechanism extending virtually substantially in a vertical plane represented by the line R. In Fig. 5a it is shown for example that an upper part B of the displacement mechanism 50 is located farther away from the transport mechanism 1 1 a and a lower part O of the displacement mechanism 50 is located closer to the transport mechanism 1 1 a than in the orientation of the displacement mechanism 50 represented by line R.

The opposite situation is shown in Fig. 5b. The angle b1 , b2 between the orientation R of the displacement mechanism 50 and the orientation of the displacement mechanism 50 shown in Figs. 5a, 5b is at most 30 degrees. It is possible for the desired orientation to be set by an operator. Optionally remotely from the cabin 1 7. The desired angle(s) a, b1 , b2 may for example be dependent on the product or dependent on the working conditions.

Fig. 5c shows an orientation of the displacement mechanism 50 which, for application in a working position of the merger 1 shown in Figs. 2a and 2b, makes particularly good deposition of the product on the land possible by means of a displacement mechanism 50 mounted on the outer side. This orientation is a combination of the orientation shown in Fig. 3 and the orientation shown in Fig. 5b, of the displacement mechanism 50. Although not shown in the figures, the displacement mechanism 50 may also be a disk-shaped element that is configured as a substantially flat disk or as an at least partially cone-shaped disk.

The rotary speed of the displacement mechanism 50 depends on the speed of travel of the device 3a that is movable over the land, in the direction of travel. For this purpose the displacement mechanism 50 may be provided with a drive unit 36, by means of which the rotary speed of the displacement mechanism is optionally adjustable by means of a regulating mechanism (not shown) and/or sensors (not shown). Optionally the rotary speed of the displacement mechanism may be adjusted automatically to the speed of travel of the merger 1 by a mechanical coupling (not shown) to a drive mechanism , for example the motor of the merger 1 , for moving the device or to a wheel following the land (not shown). With this kind of mechanical coupling it is even possible for the displacement mechanism 50 to be provided without its own drive.

The teeth 32 may further comprise a machined contact surface so that the dynamic friction coefficient between the contact surface and the product is higher than with an unmachined contact surface. In this way the speed of the product in the direction of travel can be limited by improved contact.

In the case of the conveyor belt 1 1 a, a second displacement mechanism (not shown) may also be provided near a second outlet 14 located opposite the first outlet 12. This displacement mechanism may be of identical configuration to the displacement mechanism 50 and may be mounted in mirror image relative to the displacement mechanism 50. By mounting two displacement mechanisms the conveyor belt 1 1 a may discharge the product via a first outlet 12 or a second outlet 14, depending on the direction of rotation, wherein at each outlet controlled deposition onto the land is possible by means of the displacement mechanism 50.

The displacement mechanism 50, especially the displacement mechanism that is mounted near the second outlet of the conveyor belt 1 1 a, may be movable between a first active position in which, in operation , the product reaches the displacement mechanism and an inactive position in which the product cannot reach the displacement mechanism after leaving the transport mechanism . The structure by which the displacement mechanism 50 is mounted to the device 3a may for example be provided with a mechanism (not shown) with which wheel 30 can be moved upwards out of the path of the product to be discharged by the conveyor belt 1 1 a.

A single displacement mechanism mounted between the devices 3a, 3b provides controlled central deposition for both devices 3a, 3b. This displacement mechanism may be provided with a single wheel or two wheels, one for each conveyor belt 1 1 a, 1 1 b, and the displacement mechanism comprises a single drive mechanism for rotationally driving the single wheel or the two wheels. As already described above, preferably this centrally mounted displacement mechanism is movable between an active and an inactive position, so that the different configurations of the devices 3a, 3b to be assumed in the working position are not hampered by the displacement mechanism. In the configuration of the two devices 3a, 3b that makes central deposition of the product possible, for example as shown in Fig. 2b for a merger 1 , in a simple embodiment a single displacement mechanism, for example just a single wheel, may be mounted between the two devices 3a, 3b, in order to lower the speed of the product in the direction of travel coming from two devices 3a, 3b. Normally the (central) displacement mechanism mounted between the devices 3a, 3b is oriented in such a way that the distance between the displacement mechanism and the conveyor belts 1 1 a, 1 1 b remains identical. Moreover, an upper part of the (central) displacement mechanism is located at almost the same distance from the transport mechanism as a lower part of the displacement mechanism.

In an alternative embodiment already described in this document, the displacement mechanism may also be configured as a conveyor belt (not shown) that is movable in a direction of movement which, on the side of the conveyor belt where the product reaches the conveyor belt, is substantially opposite to the direction of travel. The conveyor belt that goes round the vertical roll may be oriented relative to the device in such a way that the distance between the device and the conveyor belt seen in the direction of travel of the transport mechanism 1 1 a decreases towards the product-lifting mechanism 13a.

Claims

1 . A device that is movable in a direction of travel over the land that is to be worked by means of the device, wherein the device is provided with a lifting mechanism for picking up a product from the land, as well as with a transport mechanism that is positioned relative to the lifting mechanism in such a way that the product picked up from the land by means of the lifting mechanism can be moved onto the transport mechanism, wherein by means of the transport mechanism the product can be conveyed in a transport direction substantially transversely to the direction of travel and can be deposited on the land, characterized in that near an outlet of the transport mechanism where the product is to be deposited on the land by means of the transport mechanism, a displacement mechanism movable in a direction of movement is provided that is arranged relative to the transport mechanism in such a way that the product, after leaving the transport mechanism, reaches the displacement mechanism moving in the direction of movement in such a way that the speed of the product in the direction of travel of the device during depositing of the product on the land can be lowered by the direction of movement.

2. The device according to Claim 1 , wherein the direction of movement of the displacement mechanism is a direction of rotation so that the movement of the displacement mechanism comprises rotating the displacement mechanism about a rotation axis.

3. The device according to Claim 2, wherein the product substantially reaches a part of the displacement mechanism that has a direction of rotation that is substantially opposite to the direction of travel.

4. The device according to Claim 2 or 3, wherein the displacement mechanism is a wheel.

5. The device according to Claim 4, wherein the wheel comprises spokes, the spokes preferably being mounted trailing.

6. The device according to Claim 2 or 3, wherein the displacement mechanism is a disk-shaped element that is configured as a substantially flat disk or as an at least partially cone-shaped disk.

7. The device according to Claim 1 , wherein the displacement mechanism is a conveyor belt that is movable in a direction of movement which, on the side of the conveyor belt where the product reaches the conveyor belt, is substantially opposite to the direction of travel.

8. The device according to one of the preceding claims, wherein a speed of the displacement mechanism is dependent on a speed of travel in the direction of travel of the device movable over the land.

9. The device according to one of the preceding claims, wherein a speed of the displacement mechanism to be created with a drive unit is adjustable by means of a regulating mechanism and/or sensors.

10. The device according to one of the preceding claims, wherein a speed of the displacement mechanism can be adjusted automatically by mechanical coupling to a drive mechanism for moving the device or to a wheel following the land.

1 1 . The device according to one of the preceding claims, wherein a contact surface of the displacement mechanism with the product has been machined so that the dynamic friction coefficient between the contact surface and the product is higher than with an unmachined contact surface.

12. The device according to one of the preceding claims, wherein the transport mechanism comprises a conveyor belt which, depending on the direction of rotation, can discharge the product via a first or a second outlet, wherein the displacement mechanism is mounted at each outlet.

13. The device according to one of the preceding claims, wherein the displacement mechanism is movable between a first active position in which, in operation, the product reaches the displacement mechanism and an inactive position in which the product cannot reach the displacement mechanism after leaving the transport mechanism.

14. The device according to one of the preceding claims, wherein the displacement mechanism is oriented relative to a displacement mechanism extending substantially in a vertical plane in such a way that an upper part of the displacement mechanism is located closer to the transport mechanism and a lower part of the displacement mechanism is located farther away from the transport mechanism, or vice versa.

15. The device according to one of the preceding claims, wherein the displacement mechanism is oriented relative to the transport mechanism in such a way that, seen in the direction of travel, the distance between the displacement mechanism and the transport mechanism decreases.

1 6. A self-propelled agricultural machine, for example a self-propelled merger, said self-propelled agricultural machine being provided with at least one device according to one of the preceding claims.

1 7. The self-propelled agricultural machine according to Claim 1 6, wherein the device is provided with a motor, a front wheel axle and a rear wheel axle located at a distance from the front wheel axle, wherein the front wheel axle and/or the rear wheel axle is/are to be driven by means of the motor for moving the agricultural machine, wherein the device is movable by means of a folding-in and folding-out mechanism from a transport position to a working position and vice versa, so that in the transport position of the device the maximum width of the self- propelled agricultural machine is less than in the working position of the device.

1 8. The self-propelled agricultural machine according to Claim 1 6 or 1 7, wherein in the working position the agricultural operation is to be carried out over substantially the length of the elongated device.

1 9. The self-propelled agricultural machine according to one of Claims 1 6-1 8, wherein the agricultural machine is provided with two devices, which in the transport position are positioned on either side of the agricultural machine in such a way that the longitudinal direction of the devices extends substantially parallel to the direction of travel of the agricultural machine, wherein in the working position the longitudinal direction of the devices extends substantially transversely to the direction of travel.

20. The self-propelled agricultural machine according to one of Claims 1 6-1 9, wherein the at least one device, in the working position, is located in front of the front wheel axle, wherein in the transport position the at least one device is located largely or completely behind the front wheel axle.

21 . The self-propelled agricultural machine according to one of Claims 1 6-20, wherein the at least one device, in the working position, makes an angle of 80-1 00 degrees with the direction of travel of the agricultural machine, the angle preferably being about 90 degrees, wherein the at least one device, in the transport position, makes an angle of 0-1 5 degrees with the direction of travel of the agricultural machine, the angle preferably being 0-5 degrees.

22. The self-propelled agricultural machine according to one of the preceding claims 19-21 , wherein at least one of the two elongated devices is provided with a displacement unit, with which, in the working position, the distance between the at least two elongated devices, seen in the longitudinal direction of the at least two elongated devices, can be adjusted.

23. The self-propelled agricultural machine according to one of the preceding claim 19, wherein at least one displacement mechanism is mounted between the two devices.

24. Use of a self-propelled agricultural machine according to one of the preceding claims 16-23.