Agricultural working machine having a platform provided for inspecting the agricultural working machine

Abstract

An agricultural working machine (100), in particular distribution machine, having a platform (400) which is provided for inspecting the working machine (100) and preferably has at least one ladder (45) and / or a step surface (44) and is arranged so as to be able to be brought into different positions on the working machine (100) and comprises at least one railing (40), in particular designed in the manner of a guardrail. In order to design a working machine (100) in such a manner that the platform (400), in particular the railing (40), can be brought into the transport position particularly compactly on the working machine (100), it is provided that the railing (40) is at least partially divided into a plurality of sections (41A, 41B) which are preferably aligned at least approximately parallel and are pivotable, in particular foldable, in a mutually averted and / or opposed direction in order to lower the railing (40).

Description

[0001] Agricultural work machine with a platform intended for walking on the work machine

[0002] The invention relates to an agricultural working machine with a platform provided for walking on the working machine according to the preamble of patent claim 1.

[0003] In the field of agriculture, a multitude of variants of towed, mounted, and / or self-propelled work machines are known. These include, among others, distribution machines designed for the distribution of distribution materials. Depending on the type of application, such distribution machines can, for example, be designed like agricultural sowing and / or fertilizing machines and be designed for the distribution of granular and / or particulate materials, such as seeds and / or fertilizer. In other applications, such distribution machines can also be designed like agricultural field sprayers and be designed for the distribution of liquid materials, such as plant protection products, pesticides and / or weed killers, or the like.Furthermore, in some applications, agricultural tillage combinations are also used, which consist of several different agricultural working machines, such as distribution machines and / or soil tillage machines, for example in the style of large-area working machines and / or direct seeding machines.

[0004] Due to the relatively large dimensions of such work machines, a platform suitable and / or intended for an operator to access the work machine is often required in practice. Such a platform is typically used by the operator to access a storage container assigned to the work machine, which is intended to hold the materials to be spread. For example, to open and / or close a covering means, in particular a lid or tarpaulin, of the storage container or for various inspection and / or maintenance purposes. Such agricultural work machines with a platform are known, for example, from the documents US 5 357 884 A and / or US 2019 / 0143902 A1.

[0005] Since such platforms are only used by the operator when needed or in specific situations, work machines have become known in the prior art which allow such platforms to be at least partially moved into different positions and thus to be stowed in a space-saving manner, for example during deployment processes and / or a transport position of the work machine. Such work machines are described, for example, in the documents EP 0 979 759 A1 and / or WO 2022 / 010405 A1. Accordingly, a platform which can be moved into different positions is known which has at least one railing, in particular designed in the manner of a fall protection device, and is arranged on the work machine. Such platforms have, in particular, at least one access and / or at least one step surface via which the platform can be easily accessed by an operator.

[0006] However, stowing the railings has proven inadequate for such known work machines, as they are currently relatively bulky to place on the machine, especially in the transport position. This means that the space required for placing and / or stowing the machine's work tools during the transport position is particularly limited.

[0007] The object underlying the invention is therefore to design a work machine in such a way that the platform, in particular the railing, can be moved particularly compactly to the work machine in the transport position.

[0008] This object is achieved according to the invention in that the railing is divided at least in sections into several, preferably at least approximately parallel, sections which can be pivoted, in particular folded, in a direction opposite to one another and / or in opposite directions in order to lower the railing.

[0009] Preferably, sections of the railing are provided which are aligned parallel and / or in the longitudinal direction of the platform and are divided into vertical and / or longitudinally successive sections. The railing is designed such that the sections are preferably placed at least approximately next to one another in an upright position. In other words, the sections in the upright or raised position preferably form a sectionally assembled railing which is particularly preferably assigned to one long side of the platform. Furthermore, the railing is preferably designed at least in sections such that the individual sections can be pivoted and / or folded separately from one another for lowering from the upright or raised position.

[0010] The railing preferably comprises a plurality of at least substantially vertically aligned post elements, of which one or more, particularly preferably at least two, are assigned to each section. Between the plurality, in particular two, post elements of at least one individual section, a railing infill is provided, which is preferably formed from one or more, in particular horizontally aligned, rod and / or tube elements. It is preferably provided that the rod and / or tube elements are movably, in particular rotatably, connected to the post elements. Furthermore, the railing, in particular each section, has at least one handrail arranged on an upper side for the operator, wherein alternatively or additionally at least one upper rod and / or tube element can also be designed as a handrail.

[0011] Furthermore, the platform is preferably arranged on a frame and / or at least one storage container assigned to the work machine. The platform is further preferably arranged laterally from and / or to the storage container, so that an opening formed on the storage container is accessible to an operator via the platform. In a preferred embodiment of the work machine according to the invention, the sections can be pivoted about separate pivot axes assigned to the respective sections. Each of the sections can be pivoted about at least one or more, preferably two, pivot axes aligned at least approximately parallel to one another. For this purpose, pivot and / or pivot bearings arranged on the platform are preferably provided, to which at least one, preferably each, of the post elements is connected.The pivot axes are particularly preferably aligned at least approximately perpendicularly and / or transversely to a longitudinal axis of the railing, in particular of the sections, so that the post elements and thus the sections can be pivoted and / or folded in a direction pointing in the longitudinal direction of the platform.

[0012] In a further development of the work machine according to the invention, the sections can be moved separately from one another in a folded and / or nested manner when the railing is lowered. The sections, which form at least a portion of the railing, can thus be stowed in individual, separate packages and / or bundles along the long side of the platform, in particular the railing. Particularly preferably, it is provided that in the folded, non-operating position, only the post elements and / or the rod or tube elements of a single section are placed next to one another.

[0013] In another preferred embodiment of the work machine according to the invention, the sections can be pivoted towards one another for erecting the railing. While the sections are pivoted and / or folded away from one another for lowering the railing, the sections are pivoted and / or folded towards one another and / or towards one another again for erecting the railing. When erecting the railing, in particular the sections, the post elements and / or the rod or tube elements previously placed next to one another are released from one another and / or moved away from one another so that they are spaced apart from one another in the erected, operational position. In another development of the work machine according to the invention, the platform has at least one tread surface which can be adjusted, at least in sections, into a raised position when the railing is lowered and / or when the railing is lowered.In a further particularly preferred embodiment of the work machine according to the invention, the tread is divided into several sections, wherein at least one of the sections is adjustable into the raised position. The tread preferably forms the floor of the platform, which can be stepped on or walked on by the operator. The at least one or more liftable sections of the tread are preferably pivotable and / or foldable about an axis aligned approximately perpendicular to the pivot axis of the sections and / or at least approximately parallel to the longitudinal axis of the railing. This embodiment has the advantage that the tread creates additional free space for stowing and / or placing work tools of the work machine in a particularly simple manner, which in turn results in a work machine that is particularly compact in the transport position.

[0014] In a further development of the work machine according to the invention, the sections can be placed at a defined distance from one another when the railing is lowered. In other words, the individual sections, which are folded up separately from one another, are placed in different areas on the platform in the lowered state, so that a defined distance and thus a defined free space results between the sections and / or areas in which the sections are placed. The distance and / or free space is designed such that it corresponds at least approximately to the length of the at least one liftable and / or pivotable section of the tread. In particular, it is provided that the at least one section of the tread can be guided past the sections of the railing when being lifted and / or pivoted.

[0015] Furthermore, a work machine according to the invention is preferred in which at least one adjusting element is provided between the railing and the tread, in particular between at least one section and at least one portion. The adjusting element is preferably designed in the manner of an adjusting lever and / or a rod and is particularly preferably configured to transmit an adjusting force between the railing and the tread, in particular between the at least one section and the at least one portion. The railing and the tread are thus connected and / or connectable to one another via the adjusting element in a force-transmitting manner. The adjusting element is further preferably configured to raise the tread, in particular the at least one portion, when the railing is lowered. For this purpose, at least one of the sections is preferably coupled to the adjusting element in a rotationally fixed manner.

[0016] In another preferred embodiment of the work machine according to the invention, at least one actuator is assigned to the platform, which actuator is designed to adjust the sections, and in particular the tread or the at least one section, jointly, preferably in an alternating and / or sequential manner. In a particularly preferred embodiment, it is provided that the at least one actuator is designed to pivot the individual sections and / or the at least one section of the tread alternately and / or sequentially. Alternatively or additionally, the actuator can also be designed to pivot and / or adjust the sections of the railing and / or the at least one section of the tread jointly and / or simultaneously.In particular, a mechanism and / or a gear device is provided for this purpose, via which the at least one actuator is coupled, preferably in a force-transmitting manner, to the sections of the railing and / or the tread surface. Alternatively or additionally, further actuators would also be conceivable, which are coupled and / or connected jointly or individually to at least one of the sections and / or the section. The at least one actuator is particularly preferably designed in the manner of a hydraulically, pneumatically and / or electrically actuated actuating cylinder. Furthermore, a motion converter arranged between the actuator and the sections is preferred, which is designed to convert linear movements of the actuator into rotary movements for pivoting the sections and / or the tread surface. In an alternative, but equally preferred embodiment of the work machine according to the invention, the at least one actuator can also be designed as a rotary drive.

[0017] In a particularly preferred embodiment of the work machine according to the invention, at least one sensor device is assigned to the platform, which is configured to detect at least one position of the platform, in particular of the sections and / or the tread. The at least one sensor device is preferably arranged on at least one actuator.

[0018] In a particularly preferred development of the work machine according to the invention, the positions of the platform, in particular of the sections and / or the tread, can be adjusted in a manner that is remotely controlled and / or selectable by an operator. In particular, it is provided that the positions of the platform can be adjusted by the operator using the actuator and an actuating switch, lever, or the like arranged on the work machine, or alternatively and / or additionally via an operating and / or display means arranged, in particular, in a driver's cab. Alternatively or additionally, it is conceivable that the positions of the platform, in particular of the railing, can be adjusted automatically depending on the intended operating positions of the work machine, for example for a working position or a transport position of the work machine.In other words, alternatively or additionally, it can be provided that the platform is configured to change position as soon as and / or before the machine is moved from the working position to the transport position and / or after the working machine is moved from the transport position to the working position. Furthermore, it can be provided, for example, that the operator actuates the change in position of the platform, in particular the railing, as soon as a filling process of the storage container is intended.

[0019] In another particularly preferred embodiment of the work machine according to the invention, the positions of the platform, in particular the sections and / or the tread, can be adjusted automatically, in particular by means of a control and / or regulating system assigned to the work machine. The positions are particularly adjustable such that the platform, preferably the sections and / or the tread, can be folded in and / or unfolded automatically by means of the actuator and / or the control and / or regulating system.

[0020] In another particularly preferred embodiment of the work machine according to the invention, the positions of the platform, in particular of the sections and / or the tread, can be automatically adjusted as a function of a position and / or change in position of the work machine, preferably of work tools, frame and / or at least one foldable cross member assigned to the work machine, which position can be detected in particular by sensors. In particular, it is provided that after detecting a change in position of the work machine, preferably of work tools, frame and / or at least one foldable cross member assigned to the work machine, the position of the platform is adjusted. In particular, an angling of the work tools, frame and / or at least one foldable cross member can be detected by means of an associated further sensor device.This is advantageous, for example, to avoid collisions between the platform and other, particularly foldable, parts of the work machine.

[0021] In a further particularly preferred embodiment of the work machine according to the invention, the platform is arranged via a plurality of articulation points on a frame of the work machine and / or on at least one storage container assigned to the work machine. At least one of the articulation points is assigned adjustment means which are designed to align the sections, preferably an alignment of the sections, with one another. The adjustment means are preferably designed to align the sections that can be placed next to one another in the upright position, in particular the rod and / or tube elements of the different sections or the handrail, flush. This is particularly advantageous in the event of a distortion, such as a welding distortion during the manufacture of the railing. In a further particularly preferred embodiment of the work machine according to the invention

[0022] The working machine is designed in the manner of a towed agricultural seed drill.

[0023] Further details of the invention can be found in the example description and the drawings. The drawings show

[0024] Fig.1 shows an agricultural working machine with a platform according to the invention in working position and in a perspective view from the front;

[0025] Fig.2A shows the platform according to the invention in an upright position and in a perspective detailed view;

[0026] Fig.2B shows the platform from Fig.2A when lowering a section of a railing according to the invention;

[0027] Fig.2C the platform from Fig.2A in lowered inoperative position; and

[0028] Fig.3 the agricultural work machine from Fig.1 in transport position.

[0029] A platform 400 of an agricultural work machine 100, here for example a seed drill, which is intended for walking on, can be seen in Fig. 1 arranged on a storage container 10 assigned to the work machine 100. The storage container 10 is intended for holding material to be distributed, here granular material to be distributed or seed and / or fertilizer, and is arranged on a frame 20 of the work machine 100. On the front of the frame 20 there is a drawbar 21 which is to be arranged on a coupling device of an agricultural tractor (not shown here). On a rear side of the frame 20, next to a running wheel 22, a seed bar 30 or a cross member is coupled in the manner indicated, on which or to which work tools 31, such as seed coulters, packer and / or support wheels or the like, are typically arranged and / or fastened.The seed bar 30 or the cross member, which can be adjusted between different positions, in particular between a working and transport position, is shown in this view in a folded-out working position pointing at least approximately transversely to the direction of travel F.

[0030] At this point, it should be explicitly mentioned again that the illustrated towed work machine 100, in an alternative embodiment, can also be carried by a tractor or attached and / or mounted to it. Furthermore, a self-propelled work machine 100 would also be conceivable as an alternative. Depending on the type of application and / or design of the work machine 100, the storage container 10 can alternatively or additionally be provided for holding liquid distribution material, such as spraying agents or the like. In particular, the work machine 100 can also be designed as an agricultural field sprayer.

[0031] The platform 400 arranged to the side of the storage container 10 has, in addition to a ladder 45, a step surface 44 forming the floor of the platform 400, via which an operator can climb onto and / or enter the platform 400. The platform 400 provides easy access to areas that are otherwise difficult or impossible for the operator to access from the floor, such as the top of the storage container 10. In particular, the platform 400 can be used by the operator to open and / or close covering means arranged on the top of the storage container 10, which in this exemplary embodiment are designed as closable and / or pivotable container lids 11. This is particularly helpful, for example, for filling processes of the work machine 100, in particular of the storage container 10.It should be explicitly mentioned here that the platform 400 can alternatively or additionally be provided and / or used for maintenance, conversion, operation, and / or adjustment purposes of the work machine 100. Furthermore, in another application example not shown, the platform 400 can alternatively or additionally also be provided for access to a driver's cab arranged on the work machine 100.

[0032] As can be seen particularly clearly in Fig. 2A, the platform 400 comprises a railing 40, which is designed in the manner of a fall protection device and along a longitudinal side or corresponding to a longitudinal axis L of the platform 400. Furthermore, the railing 40 has a plurality of rod and / or tube elements 42A, 42B, in particular horizontally aligned, and at least partially designed in the manner of a handrail, which are arranged on and / or between a plurality of post elements 43A, 43B of the platform 400.

[0033] The platform 400 shown is designed to be movable into different positions for space-saving storage when not in use, for example for a transport position of the work machine 100 and / or for distribution or spreading processes. In order to stow the platform 400 in a simple and / or particularly space-saving manner, the railing 40 is divided according to the invention at least in sections into a plurality of sections 41A, 41B, in particular sections which are aligned at least approximately parallel, which can be pivoted, in particular folded, in a direction opposite to one another and / or in the opposite direction in order to lower the railing 40. In Figures 1 and 2A, the railing 40 is shown in a fully erected position intended for access, in which the sections 41A, 41B are arranged along the long side orparallel to the longitudinal axis L are placed at least approximately next to each other and / or one behind the other, and in particular in which the post elements 43A, 43B are aligned at least substantially in a vertically upward direction.

[0034] The sections 41A, 41B are pivotable about separate pivot axes 45A, 45B, which are preferably aligned at least approximately parallel to one another and at least approximately perpendicular and / or transversely to the longitudinal axis L of the railing 40, in particular of the sections 41A, 41B. For this purpose, each of the post elements 43A, 43B is arranged, in particular at one of its ends, within the platform 400 via a respective associated pivot bearing (not shown in the figures). Starting from the upright position shown here, the post elements 43A, 43B and thus the sections 41A, 41B can be pivoted about the pivot axes 45A, 45B in the indicated pivot directions 450A, 450B to lower the railing 40. To erect the railing 40, the sections 41A, 41B can also be pivoted in a direction 450A, 450B that is reverse to that shown. In Fig. 2B, the platform 400 is in the horizontal position during adjustment orduring the pivoting of the railing 40, in particular of the sections 41 A, 41 B. As can be seen, for this purpose initially only one of the sections 41 A, 41 B, here the right or second section 41 B, is pivoted along the long side or parallel to the longitudinal arm L. Alternatively or additionally, it can also be provided that in another embodiment, starting from the center of the platform 400, initially only one side with several sections 41 A, 41 B is adjusted and / or pivoted. Furthermore, alternatively or additionally, it would also be conceivable for all sections 41 A, 41 B to be adjusted and / or pivoted simultaneously. In the exemplary embodiment shown, it is provided in particular that the at least one other or the left section 41 A is only pivoted once the right or second section 41 B has been completely folded down.

[0035] As can also be seen, the rod and / or tube elements 42A, 42B are arranged so as to be rotatable relative to the post elements 43A, 43B. Thus, the rod and / or tube elements 42A, 42B can be rotated relative to the post elements 43A, 43B during the lowering of the railing 40.

[0036] Fig. 2C shows the platform 400 with the railing 40 fully lowered or folded down. The sections 41A, 41B can each be moved separately from one another in a folded and / or nested manner. In particular, it can be seen that one of the plurality of sections 41A, 41B, here the left section 41A, is positioned facing a first or left end of the platform 400, while at least one other of the plurality of sections 41A, 41B, here the right section 41B, is positioned facing a second or right end of the platform 400.

[0037] As also shown, it is also provided that the tread surface 44 can be adjusted, at least in sections, into a raised position when the railing 40 or sections 41A, 41B are lowered and / or lowered. For this purpose, the tread surface 44 has a liftable section 440. In an alternative embodiment, it would be conceivable for the tread surface 44 to have several liftable sections 440 or for the entire tread surface 44 to be designed to be liftable.

[0038] For adjusting and / or raising at least one section 440 of the tread surface 44, an adjusting element 52, designed here in the manner of a lever, is provided between the railing 40 and the tread surface 44. The adjusting element 52 is arranged in a force-transmitting manner between at least one section 41A, 41B, here the left or first section 41A, and the liftable section 440, and is configured to raise the section 440 during and / or after the lowering of the railing 40. In particular, it is provided for this purpose that the adjusting element 52 is connected in a rotationally fixed manner to the railing 40, in particular to one of the sections 41 A, 41 B, and / or is arranged such that the adjusting element presses against the at least one section 440 from below when the railing 40 is at least partially lowered and thus pivots the section 440 about an axis 441 aligned at least approximately parallel to the longitudinal axis L.

[0039] The railing 40 is further configured such that the sections 41A, 41B can be positioned at a defined distance from one another when the railing 40 is lowered. The distance between the folded-down sections 41A, 41B corresponds at least approximately to the length of the liftable section 440 of the tread 44, so that the section 440 can be guided past the sections 41A, 41B during and / or for lifting.

[0040] To adjust the platform 400, the railing 40 is further assigned an actuator 50, which is designed in the manner of an actuating cylinder and is configured to adjust the sections 41A, 41B, and in particular the tread 44 or the at least one section 440. For this purpose, the actuator 50 is designed to be remotely actuated by the operator and can be operated hydraulically and / or pneumatically. Alternatively or additionally, the actuator 50 can also be electrically operated and / or actuated. Furthermore, the actuator 50 can also comprise a rotary drive, alternatively or additionally to the illustrated embodiment. Furthermore, a plurality of actuators 50 would also be conceivable, which are, for example, separately assigned to different sections 41A, 41B and / or the tread 44.In addition, a motion converter (not shown in the figures) can be assigned to the one or more actuators 50, which is configured to convert linear movements of one or more actuators 50 into rotary and / or pivoting movements.

[0041] In particular, it is provided that the one or more actuators 50 are configured to adjust and / or pivot the sections 41A, 41B, and in particular the at least one section 440, in an alternating and / or sequential manner or alternatively jointly. Furthermore, the one or more actuators 50 can be selectively actuated automatically by a control and / or regulating system assigned to the work machine 100 and / or manually by the operator, so that the railing 40 can be raised and / or folded down as needed.

[0042] In order to monitor and / or detect a current position of the platform 400, in particular of the railing 40, the platform 400 in the exemplary embodiment shown is assigned a sensor device 51, which is arranged here on the actuator 50 and is designed to detect at least the position of the platform 400, in particular of the sections 41A, 41B. It should be explicitly mentioned again here that the sensor device 51 can alternatively or additionally also be arranged on at least one of the sections 41A, 41B and / or on the tread 44. Thus, the control and / or regulating system and / or the operator can easily monitor the position of the platform 400 and adjust the position in a selectable manner if necessary. Alternatively or additionally, the work machine 100, in particular the work tools 31, the frame 20 and / or the saw 30 orAt least one further sensor device can be assigned to the cross member, which is designed to detect its position and / or a change in position, for example an angling. In particular, it can be provided that the positions of the platform 400 can be adjusted in an automated manner, preferably by means of the actuator 50 and / or the control and / or regulating system, depending on the positions of the work machine 100, in particular of the working tools 31, the frame 20 and / or the sowing machine 30, detected by the further sensor device. With the railing 40 folded down and / or the step surface 40 raised, the sowing machine 30 or the cross member with the working tools 31 can be placed laterally on the storage container 10 and / or above the platform 400 for the transport position, as shown in Fig. 3.At least one of the working tools 31 can, as also shown, be able to be moved at least partially into a free space additionally created by the raised section 440 of the tread 44.

[0043] Furthermore, it should be mentioned that the platform 400 is arranged on the storage container 10 via a plurality of articulation points 46, which are designed here in the manner of angle elements. However, the articulation points 46 can also be connected to the frame 20 instead of to the storage container 10, alternatively or additionally. For the sake of clarity, only the two outer articulation points 46, in particular the angle elements, are provided with reference numerals in the figures. The platform 400 shown, however, has further articulation points 46, in particular arranged at least approximately centrally on the platform 400, whereby it is explicitly pointed out again here that the platform 400 can comprise only one or more such articulation points 46, in particular depending on the requirements or length of the platform 400. Adjustment means (not shown in detail) are assigned to the articulation points 46, which are designed to align the sections 41A, 41B with respect to one another and / or to one another.In particular, the adjustment means are configured to adjust the inclination of the railing 40, preferably of the sections 41A, 41B, toward the storage container 10 and / or transversely to the longitudinal axis L of the platform 400. In other words, as needed, for example in the event of a warpage of the railing 40, the inclination of one or more sections 41A, 41B can be adjusted toward the storage container 10 or away from the storage container 10 by means of the adjustment means. This is intended to enable the alignment between the sections 41A, 41B to be adjusted by means of the adjustment means. Such adjustment means can alternatively or additionally be arranged only at one or at several, in particular at each, of the articulation points 46.

[0044] It is understood that the features mentioned in the previously described embodiments are not limited to these specific combinations and are also possible in any other combinations. Furthermore, it is understood that the geometries shown in the figures are merely exemplary and are also possible in any other configurations.

[0045] List of reference symbols

[0046] 10 storage containers

[0047] 100 Agricultural work machine

[0048] 11 Container lid 0 Frame 1 Drawbar 2 Wheel

[0049] 30 seed bar

[0050] 31 Work tool 0 Railing 00 Platform 1 A, 41 B Sections of the railing

[0051] 42A, 42B Rod and / or tube elements

[0052] 43A, 43B post elements

[0053] 44 Tread

[0054] 440 Section of the tread surface

[0055] 441 Axis

[0056] 45 Ascent

[0057] 45A, 45B swivel axes

[0058] 450A, 450B swivel directions

[0059] 46 Pivot point

[0060] 50 Actuator

[0061] 51 Sensor device

[0062] 52 Control element

[0063] F Direction of travel

[0064] L Longitudinal axis

Claims

[Patent Claims] Agricultural work machine (100), in particular a spreading machine, with a platform (400) provided for walking on the work machine (100), and preferably having at least one step (45) and / or a tread (44), which is arranged on the work machine (100) and can be moved in different positions, and comprises at least one railing (40), in particular designed in the manner of a fall protection device, characterized in that the railing (40) is divided at least section by section into several sections (41 A, 41 B), preferably at least approximately parallel, which are pivotable, in particular foldable, in order to lower the railing (40) in a direction that deflects away from each other and / or is opposite to each other.A work machine (100) according to claim 1, characterized in that the sections (41A, 41B) are pivotable about separate pivot axes (45A, 45B) assigned to the respective sections (41A, 41B), wherein the pivot axes (45A, 45B) are aligned at least approximately perpendicular and / or transverse to a longitudinal axis (L) of the railing (40), in particular of the sections (41A, 41B). A work machine (100) according to at least one of the preceding claims 1 and 2, characterized in that the sections (41A, 41B) can each be stored separately from one another in a folded and / or nested manner when the railing (40) is lowered. Working machine (100) according to at least one of the aforementioned claims 1 to 3, characterized in that the sections (41 A, 41 B) are pivotable relative to each other for erecting the railing (40).Working machine (100) according to at least one of the aforementioned claims 1 to 4, characterized in that the platform (400) has at least one tread surface (44) which, when the railing (40) is lowered and / or when the. Lowering the railing (40) is adjustable, at least section by section, into a raised position. Working machine (100) according to claim 5, characterized in that the tread surface (44) is divided into several sections (440), wherein at least one of the sections (440) is adjustable into the raised position. Working machine (100) according to claim 6, characterized in that the sections (41A, 41B) can be positioned at a defined distance from each other when the railing (40) is lowered, wherein the distance corresponds at least approximately to the length of the at least one liftable section (440) of the tread surface (44).A work machine (100) according to at least one of the preceding claims 5 to 7, characterized in that at least one actuating element (52) is provided between the railing (40) and the tread (44), in particular between at least one section (41A, 41B) and at least one section (440), which is configured to transmit an actuating force between the railing (40) and the tread (44), in particular between the at least one section (41A, 41B) and the at least one section (440), and preferably to raise the tread (44), in particular the at least one section (440), when the railing (40) is lowered. A work machine (100) according to at least one of the preceding claims 1 to 8, characterized in that at least one actuator (50) is assigned to the platform (400), which is configured to raise the sections (41A, 41B), and in particular the tread (44), respectively.to adjust at least one section (440) together, preferably in an alternating and / or successive manner. Working machine (100) according to at least one of the preceding claims 1 to 9, characterized in that at least one sensor device (51) is assigned to the platform (400), which is preferably located on the actuator (50). The machine (100) is arranged and is configured to detect at least one position of the platform (400), in particular of the sections (41 A, 41 B). It is characterized in that the positions of the platform (400), in particular of the sections (41 A, 41 B) and / or the footplate (44), can be adjusted in a manner remotely controlled and / or selectable by an operator.Working machine (100) according to at least one of the aforementioned claims 9 to 11, characterized in that the positions of the platform (400), in particular of the sections (41 A, 41 B) and / or the tread surface (44), are adaptable in an automated manner, in particular by means of a control and / or regulation system assigned to the working machine (100), in particular such that the platform (400), preferably of the sections (41 A, 41 B) and / or the tread surface (44), is automatically folded in and / or unfolded by means of the actuator and / or the control and / or regulation system.Working machine (100) according to claim 12, characterized in that the positions of the platform (400), in particular of the sections (41 A, 41 B) and / or the tread surface (44), are automatically adjustable depending on a position and / or change in position of the working machine (100), preferably of working tools (31), frame (20) and / or at least one foldable crossbeam (30) associated with the working machine (100), which can be detected by sensors.Working machine (100) according to at least one of the aforementioned claims 1 to 13, characterized in that the platform (400) is arranged via several pivot points (46) on a frame (20) of the working machine (100) and / or on at least one storage container (10) associated with the working machine (100), wherein at least one of the pivot points (46) is assigned adjusting means which are configured to align the sections (41 A, 41 B), preferably an alignment of the sections (41 A, 41 B), to each other. Working machine (100) according to at least one of the aforementioned claims 1 to 14, characterized in that the working machine (100) is designed in the manner of a trailed agricultural seed drill.

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