Commercial vehicle with mixing element

Abstract

Commercial vehicle (2) with a vehicle frame (4), a chassis (6) arranged on the vehicle frame (4) and adjacent to a floor level (BE), a trough device (8) arranged on the vehicle frame (4) which forms a trough-like receiving space (18) for receiving transport material, and at least one mixing element (24) which is designed to mix the transport material in the receiving space (18), characterized by a separating device (22, 34) which is movably mounted relative to the trough device (8) from a mixing position in which the mixing element (24) is arranged within the receiving space (18) into a separating position in which the mixing element (24) and the receiving space (18) are separated from one another.

Description

[0001] The invention relates to a commercial vehicle. The commercial vehicle comprises a vehicle frame, a chassis, a trough device, and a mixing element. The chassis is arranged on the vehicle frame and borders a floor plane. The trough device is arranged on the vehicle frame and forms a trough-like receiving space for accommodating transport material. The mixing element is designed to mix the transport material in the receiving space.

[0002] Such a commercial vehicle is known, for example, as a truck mixer or a feed mixer wagon. These are used to produce and transport a material from various components. The use of the feed mixer wagon without the mixing element, for example, is not intended.

[0003] In the construction industry, various commercial vehicles are used for transporting different materials, especially to the construction site. Materials such as soil and sand, especially homogeneous bulk materials, are typically transported by dump trucks. Mixed materials such as suspensions and sponges, especially those containing cement, must be prevented from separating during transport and are therefore transported by truck mixers, for example.

[0004] When laying underground lines, a trench is typically first dug, into which the lines are then installed. The excavated material can be transported away by dump trucks. The lines subsequently placed in the trench are then covered with a mixed material, which the excavated material was further processed into by a stationary mixing plant. Previously, various commercial vehicles had to be used to remove the excavated material and subsequently transport the mixed material. This entails considerable costs and personnel expenditure, as well as high CO2 emissions.

[0005] The object of the present invention is to provide a reliable generic commercial vehicle by means of which this expenditure can be reduced.

[0006] According to the invention, this object is achieved in that the commercial vehicle has a separating device. The separating device is mounted so that it can move relative to the trough device from a mixing position to a separating position. In the mixing position, the mixing element is arranged within the receiving space. In the separating position, the mixing element and the receiving space are separated from each other.

[0007] In other words, the invention makes it possible to selectively circulate a mixed material using a mixing element and also to transport conventional solid material without the mixing element impairing or complicating the transport or handling of the transport material. The separating device therefore makes it possible for the commercial vehicle to be used both for the removal of the excavated material, in particular bulk material, and for the subsequent transport of the mixed material. The mixing element is to be used or not used depending on the material. When the separating device is in the mixing position, phase separation of the mixed material is avoided. In the separating position, it is ensured that the handling, e.g. tipping, of the excavated material, in particular sand or earth, is not impaired by the mixing element.The commercial vehicle according to the invention thus combines two transport systems in just one vehicle with just one transport container.

[0008] The commercial vehicle according to the invention can be used particularly effectively when laying underground lines. It eliminates the need for different types of commercial vehicles for transporting materials and avoids empty runs. This significantly reduces the cost of transporting materials. In particular, the commercial vehicle according to the invention enables significant CO2 savings.

[0009] The commercial vehicle according to the invention is preferably a self-propelled vehicle or a trailer to be attached to a tractor. The chassis is designed to travel in one direction of travel, at least in a straight-ahead position. The trough device is designed to be open in a direction facing away from the ground plane, at least in a loading position. The receiving space can preferably be closed during road travel by a cover element, in particular a flexible cover element. Furthermore, at least one front wall, two side walls, a floor and a rear wall can preferably form the receiving space. The front wall, the side walls and the floor of the trough device are then designed to be rigid or in one piece. The rear wall is designed in particular by a flap that can be pivoted relative to the side walls.Preferably, the entire dumping device is pivotable relative to the vehicle frame to allow the transport material to be tipped out of the receiving space. In this respect, the commercial vehicle is particularly preferably essentially a dump truck.

[0010] In the sense of the invention, an excavator or the like can also form the commercial vehicle, wherein the trough device is arranged, for example, in the manner of a shovel on a boom or the like as the vehicle frame.

[0011] The trough device is preferably designed such that the receiving space is at least substantially cuboid-shaped or has the shape of a half cylinder. In particular, the side walls and floor can, for example, seamlessly merge into one another. The main direction of extension of the receiving space preferably coincides with the direction of travel of the commercial vehicle.

[0012] The receiving space is defined by the trough device. It extends, in particular, from the bottom of the trough device to an upper edge of the walls of the trough device. The shape of the receiving space is, in particular, fixed or variable.

[0013] Regardless of the specific commercial vehicle, a dumper device as a replaceable attachment with a separating device according to the invention can also form the subject of the present invention. Such an attachment can, for example, be designed in the manner of a mixing bucket with a separating device, which can be used for wheel loaders, excavators, or the like. Thus, an attachment according to the invention combines two transport systems in a single object with a single transport container.

[0014] The mixing element is preferably designed in one or more parts. During use, the mixing element is in direct contact with the transport material in the receiving space. The mixing element is preferably designed to mix the transport material during travel.

[0015] The separating device preferably has at least one partition wall element. In the separated position of the separating device, the partition wall element is arranged at least partially or completely between the receiving space and the mixing element. In particular, in the separated position of the separating device, the partition wall element is arranged between the receiving space and the front wall, one of the side walls, the floor or the rear wall. The same applies to the mixing element. The partition wall element is preferably designed as a partition wall, intermediate wall, partition floor or intermediate floor of the trough device. Particularly preferably, the separating device has two partition wall elements that are designed and / or mounted in the same way, in particular mirror-symmetrically, wherein the mirror plane extends in particular at right angles to the floor plane and in the direction of travel.Preferably, the at least one partition element closes off the receiving space in the separation position of the separating device in such a way that it impermeates the transport material to the mixing element. The partition element serves, in particular, to reduce the size of the receiving space. The receiving space present in the mixing position is reduced by the partition element in such a way that a residual space is created for the inactive mixing element. This creates a conventional trough in the separation position without impairing the mixing element.

[0016] In the mixing position of the separating device, the partition wall element preferably opens up the receiving space to the mixing element. In the mixing position, the receiving space thus extends to the mixing element or beyond. This opening is particularly accompanied by an enlargement of the receiving space. In the mixing position, the mixing element can act directly on the transport material in the receiving space.

[0017] In the mixing position of the separating device, the partition element preferably extends flatly parallel to the front wall, the rear wall, one of the side walls, or the floor. This particularly applies to the wall or floor against which the partition element rests in the mixing position of the separating device. Alternatively, there is a slight gap between the wall or floor and the partition element. This arrangement of the partition element in the mixing position allows for particularly space-saving installation and allows for a particularly large extension of the receiving space in the mixing position.

[0018] The at least one partition element is preferably mounted on the trough device for pivoting about a partition pivot axis. Alternatively, the partition element is additionally mounted on the trough device for translational movement. In this case, the movement of the separating device from the mixing position to the separating position and / or back represents a pivoting movement and / or a translational movement of the partition element. This type of mounting of the partition element ensures particularly high reliability of the separating device.

[0019] The partition wall pivot axis is preferably aligned parallel to the direction of travel and / or the longitudinal direction of the receiving space. This allows the shape of the receiving space to be easily changed over its entire length, and in the mixing position, a mixing element can be used that also extends over the entire length of the receiving space. Alternatively, the partition wall pivot axis extends at right angles to the floor plane or at right angles to the direction of travel or longitudinal direction and parallel to the floor plane. Particularly preferably, the at least one partition wall element extends over at least a major part or the entire width of the receiving space in the separating position of the separating device, so that a particularly large mixing element or several mixing elements that cover the entire floor area of ​​the receiving space as far as possible can be used in the mixing position.

[0020] Alternatively or in addition to the partition wall element, the separating device is designed such that the mixing element is mounted on the separating device. In this case, the separating device is designed to move the mixing element out of the receiving space. In this case, when the separating device moves from the mixing position to the separating position and / or back, the shape of the receiving space is not necessarily changed, but rather the position of the mixing element relative to the trough device or relative to the receiving space is changed. The movement of the mixing element out of the receiving space occurs in particular through the opening of the receiving space facing away from the floor plane. In this case, the separating device is preferably designed to be mirror-symmetrical to a longitudinal center plane and / or is mounted on the vehicle frame or on the trough device.This embodiment of the commercial vehicle according to the invention has the advantage that the receiving space is available with maximum size even in the separated position.

[0021] The separating device preferably has at least one first separating holding arm, which is mounted outside the receiving space so as to be pivotable about a first separating holding pivot axis. The first separating holding pivot axis is oriented in particular parallel to the ground plane and perpendicular to the direction of travel. In particular, the first separating holding arm is mounted directly or indirectly on the vehicle frame or on the trough device. Preferably, the first separating holding arm is mounted outside the receiving space. Alternatively, the first separating holding arm can also be mounted inside the receiving space. In particular, the first separating holding arm is mounted on the front wall of the trough device.

[0022] The separating device is particularly designed such that the first separating holding pivot axis is displaceable relative to the trough device. The separating device preferably has at least one displacement element that is displaceably mounted on the trough device and on which the first separating holding arm is pivotally mounted. A displacement direction is preferably aligned radially to the rotation axis. In this case, the mixing element is particularly arranged directly on the first separating holding arm. As a result, the position of the mixing element can be changed by a pivoting and displacement movement and can be moved flexibly into all parts of the receiving space and easily out of the receiving space.

[0023] Alternatively or in addition to the displacement element, the separating device particularly preferably comprises a second separating holding arm, which is pivotably mounted on the first separating holding arm about a second separating holding pivot axis. The second separating holding pivot axis is preferably aligned parallel to the first separating holding pivot axis. In this case, the mixing element is arranged, in particular, directly on the second separating holding arm. Particularly preferably, at least one of the two separating holding arms is designed to be telescopic. The use of the at least one separating holding arm creates a particularly reliable structure for the separating device.

[0024] In the separated position of the separating device, the mixing element is preferably arranged at least partially in front of the receiving space in the direction of travel. Alternatively or additionally, in the separated position, the mixing element is spaced further from the ground plane with a side facing away from the ground plane than a side of the receiving space or the front wall facing away from the ground plane. This means that in the separated position, the mixing element is arranged at least partially or completely in front of and / or above the receiving space or the trough device. As a result, the mixing element has the least possible impact on the operation of the commercial vehicle without the mixing element.

[0025] The separating device is preferably designed to move the mixing element operated within the receiving space relative to the trough device. This means that the separating device is designed not only to move the mixing element out of the receiving space, but also to move the mixing element within the receiving space while it mixes the transported material. The separating device thus ensures that no partial phase formation of a transported mixed material occurs within the receiving space if the mixing element does not extend over the entire base area of ​​the receiving space. The movement of the mixing element takes place in particular at least partially in the direction of travel or in the longitudinal direction of the receiving space.

[0026] The mixing element is particularly designed for rotation about a rotation axis. The rotation axis is preferably oriented in a stationary manner relative to the trough device and / or at least to a part of the separating device, in particular to the second separating holding arm. Alternatively or in addition to rotation, the mixing element is preferably designed for an alternating movement within the receiving space. This can include displacements or rotations in opposite directions. The mixing element is preferably comprised by a mixing device that includes a drive device for generating the movement of the mixing element. The drive device preferably has a hydraulic motor. If the commercial vehicle has a mixing device with a plurality of mixing elements, their axes of rotation are preferably oriented in a stationary manner relative to one another.

[0027] The rotation axis is preferably aligned parallel to the direction of travel of the commercial vehicle or to the longitudinal direction of the receiving space, at least in the mixing position of the separating device. Alternatively, the rotation axis is preferably aligned perpendicular to the direction of travel or the longitudinal direction and parallel to the floor plane, at least in the mixing position. An alignment of the rotation axis perpendicular to the floor plane is also possible. This allows for particularly easy assembly and storage of the mixing element, ensuring mixing even at the edges of a receiving space.

[0028] The mixing element preferably comprises a drum body and at least one mixing body extending spirally around the drum body. The mixing body is preferably fixed to the drum body, in particular welded to the drum body. The spiral body particularly preferably lies seamlessly against the drum body or is partially spaced from the drum body. The drum body extends in particular at least substantially cylindrically and elongated in the direction of the axis of rotation. The radius of the mixing body is preferably fixed in the axial direction or, in particular in the case of only one-sided mounting of the mixing element, variable such that the mixing element as a whole tapers to a point at least partially. Alternatively or in addition to the mixing body, the mixing element comprises a plurality of propeller blades on the drum body.

[0029] Preferably, the trough device, in particular the base, forms an enveloping section that extends in a circular arc around the rotational axis in a section perpendicular to the rotational axis and envelops at least part of the mixing element. This applies at least to one position of the separating device or the mixing element. The distance of the enveloping section from the rotational axis is the same as or slightly greater than the radius of the mixing element in the same section. Particularly preferably, the rotational axis extends in the direction of travel or longitudinal direction, and the enveloping section is open towards the rear wall, so that the transport material can be conveyed or metered out of the receiving space by the mixing element.

[0030] The extension of the mixing element in the direction of the rotation axis preferably corresponds to at least 50%, 70%, or 80% of the extension of the receiving chamber in the same direction. This allows for a particularly good mixing effect.

[0031] The commercial vehicle preferably has a vibration damper device. The vibration damper device comprises at least one vibration damper element between the vehicle frame and the trough device. The vibration damper device enables movement of the vehicle frame relative to the trough device. In particular, the vibration damper device enables oscillation or vibration of the vehicle frame relative to the trough device. In other words, the vibration damper device reduces or prevents the transmission of the shrinkage or vibration of the vehicle frame, which typically occurs while the commercial vehicle is traveling along the roadway, to the trough device. This prevents demixing or separation of the components of the mixed material located in the receiving space. Furthermore, material fatigue in the trough device is prevented.

[0032] In particular, several vibration damper elements are arranged between the vehicle frame and the trough device. The at least one vibration damper element preferably has an elastically deformable damper body, in particular made of a plastic. For example, the vibration damper element is a rubber buffer. The vibration damper element is designed in particular as a vibration absorber. Further details and advantages can be found in the schematically illustrated figures described below; it shows: Fig. 1 a perspective view of a first commercial vehicle according to the invention with a separating device in a mixing position, Fig. 2 a further perspective view of the commercial vehicle according to Fig. 1, Fig. 3 a perspective view of the commercial vehicle according to Fig. 1 with the separating device in a separating position, Fig. 4 a plan view of the commercial vehicle according to Fig. 3, Fig. 5 a perspective view of a second commercial vehicle according to the invention with a separating device in a mixing position, Fig. 6 a longitudinal section through the commercial vehicle according to Fig. 5, Fig. 7 a cross-section through the commercial vehicle according to Fig. 5, Fig. 8 a side view of the commercial vehicle according to Fig. 5 with the separating device in a separating position, Fig. 9 a perspective view of a third commercial vehicle according to the invention with a separating device in a first mixing position, Fig. 10 a further perspective view of the commercial vehicle according to Fig. 9 with the separating device in a second mixing position, Fig. 11 a longitudinal section through the commercial vehicle according to Fig. 9 with the separating device in a third mixing position, Fig. 12 a longitudinal section through the commercial vehicle according to Fig. 9 with the separating device in the second mixing position, Fig. 13 shows a longitudinal section through the commercial vehicle according to Fig. 9 with the separating device in a fourth mixing position, Fig. 14 a longitudinal section through the commercial vehicle according to Fig. 9 with the separating device in a fifth mixing position, and Fig. 15 a longitudinal section through the commercial vehicle according to Fig. 9 with the separating device in a separating position.

[0033] The features of the exemplary embodiments according to the invention described below can also lead to further developments according to the invention in combinations other than those shown, but always at least in combination with the features of claim 1. Parts of the exemplary embodiments that are identical or have the same effect are provided with identical reference numerals.

[0034] The Fig. 1 to 15 show two different commercial vehicles 2 according to the invention. Each of the commercial vehicles 2 has a vehicle frame 4 and a chassis 6, which is arranged on the vehicle frame 4 and borders a floor plane BE. In addition, the commercial vehicle 2 according to the invention in any case has a trough device 8 arranged on the vehicle frame 4. The trough device 8 has at least one front wall 10, two side walls 12, a floor 14 and a pivotable rear wall 16. The trough device 8 forms a receiving space 18 for receiving transport material. In both exemplary embodiments shown, the commercial vehicle 2 is a trailer to be attached to a tractor (not shown).

[0035] Each commercial vehicle 2 according to the invention has a mixing element 24. The mixing element 24 serves to mix the transport material in the receiving space 18. Although the mixing elements 24 of the various commercial vehicles 2 differ, they are both formed by a drum body 26 and a mixing body 28 extending spirally around the drum body 26. Furthermore, the commercial vehicles 2 shown have in common that they have a separating device 22 or 34, which can be moved relative to the trough device 8 from a mixing position in which the mixing element 24 is arranged within the receiving space 18 ( Fig. 1, Fig. 2, Fig. 5, Fig. 6 and 7), is movable into a separating position in which the mixing element 24 and the receiving space 18 are separated from each other ( Fig. 3, Fig. 4 and 8).

[0036] The separating device 22 of the first utility vehicle 2 comprises two partition wall elements 32. In the separating position of the separating device 22, the partition wall elements 32 are arranged as an intermediate floor between the receiving space 18 and the mixing element 24. In the mixing position of the separating device, however, the partition wall elements 32 open up the receiving space 18 up to the mixing element 24. In the mixing position of the separating device, the partition wall elements 32 each extend flat and parallel to one of the side walls 12. The partition wall elements 32 are pivotally mounted on the trough device 8 about partition wall pivot axes WSA1 and WSA2. The partition wall pivot axes WSA1 and WSA2 are aligned parallel to the direction of travel FR.

[0037] The mixing element 24 of the first commercial vehicle 2 is designed to rotate about a rotation axis RA, which is also aligned in the direction of travel FR, which coincides with a rotation axis direction RAR. The mixing element 24 is embedded in the floor 14 of the trough device 8 such that the mixing element 24 is arranged in a groove-shaped enveloping section 30 of the floor 14, which extends in a circular arc around the rotation axis RA in a section perpendicular to the rotation axis RA and envelops a lower part of the mixing element 24.

[0038] In contrast to the separating device 22 of the first commercial vehicle 2, the separating device 34 of the second commercial vehicle 2 is formed by a first separating holding arm 40 and a second separating holding arm 42, which are designed to move the mixing element 24 out of the receiving space 18. The first separating holding arm 40 is mounted on the upper edge of the front wall 10 on the trough device 8 so as to be pivotable about a first separating holding pivot axis HSA1. The second separating holding arm 42 is mounted on the first separating holding arm 40 so as to be pivotable about a second separating holding pivot axis HSA2. A rotation axis RA of the mixing element 24 of the second commercial vehicle 2 extends parallel to the separating holding pivot axes HSA1 and HSA2 in the rotation axis direction RAR and thus transversely to the direction of travel FR.The separating device 34 is designed to move the mixing element operated within the receiving space 18 relative to the trough device 8 such that the rotation axis RA is displaced at least partially in a radial direction RR, which here corresponds to the direction of travel FR. In the separating position, the mixing element 24 is arranged partially in front of the receiving space 18 in the direction of travel FR, and a side 36 of the mixing element 24 facing away from the floor plane BE is spaced further from the floor plane BE than a side 38 of the receiving space 18 facing away from the floor plane BE.

[0039] The separating device 34 of the third utility vehicle 2 has a sliding element 41. The sliding element 41 is mounted on the trough device 8, specifically on the upper edges of the side walls 12, for displacement in the direction of travel FR or the radial direction RR. A separating holding arm 40 is pivotally mounted on the sliding element 41 about the separating holding pivot axis HSA1, which is displaceable with the sliding element 41 relative to the trough device 8. The mixing element 24 is mounted directly on the separating holding arm 40. The separating device 34 of the third utility vehicle 2 does not have another separating holding arm.

[0040] The separating device 34 of the third commercial vehicle 2 makes it possible in a simple manner to move the mixing element 24 into all areas of the receiving space 18 and thus into different mixing positions ( Fig. 9 to 14). The sliding element 41 enables movement of the mixing element 24 in the direction of travel FR. The pivoting mobility also allows variation of the distance of the mixing element 24 to the floor level BE. In the separation position ( Fig. 15), the mixing element 24 is arranged in the direction of travel FR in front of the receiving space 18 and partly in a collecting element 43. Reference symbol: 2 commercial vehicles 4 vehicle frame 6 Chassis 8 Trough device 10 Front wall 12 side wall 14 Floor 16 Rear wall 18 Recording room 22 Separator 24 mixing element 26 drum bodies 28 mixing bodies 30 envelope section 32 partition wall element 34 Separator 38 opposite side 40 first separating holding arm 41 Sliding element 42 second separating holding arm 43 Collection element BE floor level WSA1 / 2 partition swivel axis FR direction of travel HSA1 / 2 separating holding swivel axis RA rotation axis

Claims

[1] Commercial vehicle (2) with a vehicle frame (4), a chassis (6) arranged on the vehicle frame (4) and adjacent to a floor level (BE), a trough device (8) arranged on the vehicle frame (4) which forms a trough-like receiving space (18) for receiving transport material, and at least one mixing element (24) which is designed to mix the transport material in the receiving space (18), characterized by a separating device (22, 34) which is movably mounted relative to the trough device (8) from a mixing position in which the mixing element (24) is arranged within the receiving space (18) to a separating position in which the mixing element (24) and the receiving space (18) are separated from one another. [2] Commercial vehicle according to claim 1, characterized by that at least one front wall (10), two side walls (12), a base (14) and a rear wall (16) form the receiving space (18). [3] Commercial vehicle according to claim 1 or 2, characterized bythat the separating device (22) has at least one partition wall element (32) which, in the separating position of the separating device (22), is arranged at least partially between the receiving space (18) and the mixing element (24). [4] Commercial vehicle according to claim 3, characterized by that the partition wall element (32) releases the receiving space (18) in the mixing position of the separating device (22) up to the mixing element (24). [5] Commercial vehicle according to claim 3 or 4, characterized by that the partition wall element (32) extends in the mixing position of the separating device (22) flatly parallel to the front wall (10), the rear wall (16), one of the side walls (12) or the floor (14) against which the partition wall element (32) rests in the mixing position of the separating device (22). [6] Commercial vehicle according to one of claims 3 to 5, characterized by that the partition wall element (32) is pivotally mounted on the trough device (8) about a partition wall pivot axis (WSA1, WSA2). [7] Commercial vehicle according to claim 6, characterized by that the partition pivot axis (WSA1, WSA2) is aligned parallel to the direction of travel (FR). [8] Commercial vehicle according to one of the preceding claims, characterized by that the mixing element (24) is mounted on the separating device (34) which is designed to move the mixing element (24) out of the receiving space (18). [9] Commercial vehicle according to claim 8, characterized by that the separating device (34) comprises at least one first separating holding arm (40) which is mounted outside the receiving space (18) on the trough device (8) or on the vehicle frame (4) so ​​as to be pivotable about a first separating holding pivot axis (HSA1). [10] Commercial vehicle according to claim 9, characterized by that the separating device (34) has at least one sliding element (41) which is displaceably mounted on the trough device (8) and on which the first separating holding arm (40) is pivotally mounted. [11] Commercial vehicle according to claim 9 or 10, characterized by that the separating device (34) comprises at least one second separating holding arm (42) pivotably mounted about a second separating holding pivot axis (HSA2) on the first separating holding arm (40). [12] Commercial vehicle according to one of claims 8 to 11, characterized by that the mixing element (24) in the separating position of the separating device (34) is arranged at least partially in front of the receiving space (18) in the direction of travel (FR) and / or is spaced further from the ground plane (BE) with a side (36) facing away from the ground plane (BE) than a side (38) of the receiving space (18) facing away from the ground plane (BE). [13] Commercial vehicle according to one of claims 8 to 12, characterized by that the separating device (34) is designed to move the mixing element (24) operated within the receiving space relative to the trough device (8). [14] Commercial vehicle according to one of the preceding claims, characterized bythat the mixing element (24) is designed to rotate about a rotation axis (RA). [15] Commercial vehicle according to claim 14, characterized by that the axis of rotation (RA) is aligned parallel to the direction of travel (FR) of the commercial vehicle (2) or at right angles to the direction of travel (FR) and parallel to the ground plane (BE), at least in the mixed position of the separating device (22, 34). [16] Commercial vehicle according to one of the preceding claims, characterized by that the mixing element (24) comprises a drum body (26) and at least one mixing body (28) extending spirally around the drum body (26). [17] Commercial vehicle according to one of the preceding claims, characterized by that the trough device (8) has an enveloping section (30) which extends in a circular arc around the rotation axis (RA) in a section perpendicular to the rotation axis (RA) and envelops at least part of the mixing element (24). [18] Commercial vehicle according to one of the preceding claims, characterized by that a vibration damper device which has at least one vibration damper element between the vehicle frame (4) and the trough device (8) and is designed to allow the vehicle frame (4) to move relative to the trough device (8).

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