Suspension system, towed vehicle provided with such a system, assembly kit and corresponding methods for assembly, operation and use

Abstract

A movement system for a towed vehicle to be pulled by a towing vehicle, the movement system comprising: a series of front wheels capable of being mounted on a front section of a chassis of the towed vehicle; a series of rear wheels capable of being mounted to a subsequent section of the chassis of the towed vehicle; a movable tow bar capable of being pivotally mounted relative to the chassis of the towed vehicle, and pivotable about at least one corresponding axis of rotation, the tow bar being connectable to a drawbar of the towing vehicle by means of a coupler; and a drive device for moving the corresponding axis of rotation of the tow bar relative to the chassis of the towed vehicle, in response to a given surface of movement.

Description

[0001] SUSPENSION SYSTEM, TRAILED VEHICLE PROVIDED WITH SUCH EQUIPMENT, KIT FOR ASSEMBLING SAME, AND CORRESPONDING METHODS OF ASSEMBLY, OPERATION AND USE

[0002] Field of invention:

[0003] The present invention relates to the field of suspension devices for multi-axle trailers, as used in the field of towing and / or agriculture and / or for any other type of related application. More particularly, the present invention relates to a novel travel system (e.g., capable of acting as a suspension system, etc.) for a trailed vehicle (e.g., a trailer, a spreader, etc.) intended to be towed by a traction vehicle (e.g., a tractor, etc.), and also relates to a vehicle (e.g., a traction vehicle and / or a trailed vehicle) and / or an arrangement of such vehicles provided with such equipment, as well as a kit for assembling it / them, and corresponding methods of assembly, operation and / or use.

[0004] Description of the prior art:

[0005] It is known in the art that the coupling between an agricultural tractor and trailed equipment is carried out on the tractor's drawbar and that the trailed equipment must be able to follow the path of the tractor and conform to the topology of the terrain on which it is towed using a suspension system.

[0006] Traditionally, trailers (and / or spreaders) are built with a drawbar rigidly connected to the trailer's supporting structure and the other end of the drawbar is connected to the tractor's drawbar via a hitch providing movement in all axes. In such an assembly, only the trailer axles are mounted on a suspension system in order to absorb shocks and conform to the ground. Suspension systems can be of several types (regardless of the type of axle used), but notably "mechanical" type (e.g. "tandem") or "hydraulic" type, to name a few.

[0007] The problem encountered with these assemblies is that the ability to conform to the topology of the ground is limited. Indeed, depending on the length of the trailer and the configuration of the axles, it happens that the unevenness of the ground on which the trailer is towed means that the front axle or axles of the trailer are no longer in contact with the ground and that the towed weight is then supported only by the rear axle of the trailer and by the drawbar of the tractor. In this situation, the load thus distributed can exceed the permissible loads of the components of the trailer and the tractor, which greatly increases the risks of equipment breakdown and / or loss of control of the equipment.

[0008] Also known in the art is the connection of a hydraulic suspension. Indeed, regardless of the number of axles used to support and distribute the trailer load, the communicating vessel principle is used and each hydraulic cylinder is connected in series on the piston side. Therefore, when one of the axles moves, the volume of oil moves to the other cylinders and ensures that the movements are in opposite directions in order to keep the wheels in contact with the ground and the pressure remains equally distributed in the hydraulic system. However, and unfortunately, this solution does not address the aforementioned problem.

[0009] Also known in the art is the weight management of spreading equipment (e.g., spreading boom, discs, etc.) which are generally located at the rear of the spreader. Indeed, this equipment can represent a significant load at the rear of the spreader and represents a challenge when the quantity of liquid slurry contained in the spreader decreases. There are situations where the weight transferred to the tractor drawbar is "zero" or "negative" in the worst case ("negative" weight means that the load at the tractor drawbar seeks to lift the latter instead of pressing towards the ground), which is very disadvantageous and can lead to a loss of control of the equipment. In order to overcome this problem, weight transfer systems have been developed (e.g., a system lifting the front axle), but do not eliminate the risks of overloading the tractor attachment and spreader suspension elements.

[0010] Therefore, it would be of great benefit to find a new technique / approach and / or system / equipment that can support the load evenly on terrains with greater gradients and / or obstacles in order to overcome some of the aforementioned drawbacks and disadvantages compared to what is possible to achieve with the current way of doing things.

[0011] Summary of the invention:

[0012] An object of the present invention is therefore to provide a travel system (e.g. a suspension system and / or other related, etc.) for a trailer and / or spreader which, thanks to its design and components, would satisfy some of the aforementioned needs and would therefore be an improvement over other ways of doing things, systems and / or related load distribution methods known in the prior art, etc.

[0013] The above-mentioned object is achieved, as will be better understood hereinafter, by a movement system (and / or corresponding vehicle(s) comprising such equipment, etc.) such as that briefly described in the present description, and such as that exemplified in the attached figures.

[0014] More particularly, and according to a possible embodiment of the present invention, it relates in particular to a movement system (and / or a suspension system, load distribution and / or other, etc.) for a trailed vehicle intended to be pulled by a traction vehicle, the travel system comprising: a series of front wheels adapted to be mounted on a front section of a chassis of the trailed vehicle; a series of rear wheels adapted to be mounted on a subsequent section of the chassis of the trailed vehicle; a movable drawbar adapted to be pivotally mounted relative to the chassis of the trailed vehicle, and adapted to pivot about at least one corresponding axis of rotation, the drawbar being connectable to a drawbar of the traction vehicle by means of a coupling device; and a drive device for driving the corresponding axis of rotation of the drawbar into movement relative to the chassis of the trailed vehicle, in response to a given travel surface.

[0015] According to another aspect of the present invention, it also relates to a corresponding vehicle (e.g. towed vehicle and / or traction vehicle) provided with the aforementioned system and / or equipment.

[0016] For example, the present invention may also relate to a trailed vehicle intended to be towed by a traction vehicle, the trailed vehicle comprising: a chassis having a front section being configured to receive a series of front wheels capable of being movable relative to this front section of the chassis, as well as a rear section being configured to receive a series of rear wheels capable of being movable relative to this rear section of the chassis; a movable drawbar capable of being pivotally mounted relative to the chassis of the trailed vehicle, and capable of pivoting about at least one corresponding axis of rotation, the drawbar being connectable to a drawbar of the traction vehicle by means of a coupling device;and a drive device for driving the corresponding axis of rotation of the drawbar relative to the chassis of the trailed vehicle into movement, as well as selectively driving a location of the wheels of the trailed vehicle relative to the chassis thereof, in response to a given surface of movement.;

[0017] According to another aspect of the present invention, it also relates to an arrangement of such corresponding vehicles (e.g., a towed vehicle and / or a traction vehicle) provided with the aforementioned system and / or equipment.

[0018] According to another aspect of the present invention, it also relates to a kit with corresponding components for assembling the aforementioned system, equipment, vehicle and / or arrangement (e.g. with and / or without wheels, because although the final product preferably comprises wheels, it is obvious to a person skilled in the art that the present technology could ultimately be marketed "without wheels", upstream of the final and / or predestined use of the product, etc.).

[0019] According to another aspect of the present invention, it also relates to a method of assembling components of the aforementioned system, equipment, vehicle and / or arrangement.

[0020] According to another aspect of the present invention, it also relates to a method of operating the aforementioned system, equipment, vehicle and / or arrangement, and / or certain components thereof.

[0021] According to another aspect of the present invention, it also relates to a method of using the aforementioned system, equipment, vehicle and / or arrangement, and / or certain components thereof.

[0022] According to another aspect of the present invention, it also provides a set of components to be interchanged on the aforementioned system, equipment, vehicle and / or arrangement. According to another aspect of the present invention, it also provides a method of manufacturing one or other of the components of the aforementioned system, equipment, vehicle and / or arrangement.

[0023] According to another aspect of the present invention, it also relates to land (and / or the harvest thereof, etc.) having been treated with the aforementioned system, equipment, vehicle, arrangement, kit, and / or method(s).

[0024] According to another aspect of the present invention, it also provides a method of doing business with the aforementioned system, equipment, vehicle, arrangement, kit, method(s), game and / or product).

[0025] The objects, advantages, and other features of the present invention will become more apparent upon reading the following non-limiting description of preferred embodiments of the invention, shown in the accompanying drawings, and given by way of example only.

[0026] Brief description of the attached drawings:

[0027] Figure 1 shows the configuration of a multi-axle spreader according to the prior art, i.e. where the drawbar is rigidly mounted to the trailer chassis - in this typical case, the connection between the two elements is made by bolting, but in certain cases, the drawbar can be an integral part of the chassis by being welded to it.

[0028] The following figures illustrate various possible components, features, variations, and / or combinations of various aspects of the present invention, according to different possible embodiments. For example, Figure 2 illustrates that movement elements (e.g., suspension, etc.) according to the present invention may operate independently to provide optimal ground contact.

[0029] Figure 3 illustrates a simplified bottom view of a trailed vehicle (e.g. spreader) to understand the mounting of the moving elements (e.g. suspension, etc.) of the axles.

[0030] Figure 4 illustrates a side view of a trailed vehicle (e.g., spreader) to visualize a possible location of the drawbar rotation axis.

[0031] Figures 5 to 10 illustrate for information purposes only the evolution of the behavior of a movement system (e.g. suspension system, etc.) of a towed vehicle when passing over a terrain unevenness - this evolution is represented in a "comparative" manner between the configuration of a towed vehicle (e.g. trailer) of the prior art with the configuration proposed within the framework of the present descriptive memorandum, with, in each figure, the "top" portion illustrating the configuration proposed by the present invention and the "bottom" portion illustrating the configuration according to the prior art.

[0032] Figure 11 illustrates possible variations of a connection of a movement system (e.g. suspension, etc.) according to the present invention and being possible depending on a desired behavior and / or result.

[0033] Figure 12 illustrates in particular different axes of rotation at the trailer hitch.

[0034] Figure 13 illustrates an example of a hydraulic connection of a hydraulic suspension system without a movable drawbar being able to be pivotally mounted relative to the chassis of the trailed vehicle. Figure 14 shows an example of a hydraulic connection of a travel system (e.g. hydraulic suspension, etc.) with a movable drawbar being able to be pivotally mounted relative to the chassis of the trailed vehicle, and with at least one wheel axle being able to be moved according to the particular configuration of a given travel surface, according to a particular embodiment of the present invention.

[0035] Description of preferred embodiments of the invention:

[0036] In the following description, the same numerical references refer to similar components. The embodiments (geometries, dimensions, etc.) illustrated in the figures and the characteristics described in the application are preferential only, given for information purposes only.

[0037] Furthermore, although the present invention is primarily intended as a suspension system for a trailed vehicle (e.g., a trailer, a spreader, etc.) being connected to a traction vehicle (e.g., a tractor, etc.), in an agricultural context, for example, the invention could be used with any other type of suspension and / or for any other type of application and / or useful purpose, as obvious to a person skilled in the art. Therefore, expressions such as "travel", "suspension", "drawbar", "hitch", "vehicle", "traction", "trailed", "agriculture", "tractor", "trailer", "spreader", etc., as used herein, and / or any other reference and / or other expression equivalent or similar thereto shall not be construed as limiting the scope of the present invention and include any other object / substitute and / or any other application with which the present invention may be used and may be useful, as obvious to a person skilled in the art.

[0038] Furthermore, although the preferred embodiments of the illustrated system comprise several components, not all of these components are necessarily essential to the invention and consequently should not be taken in their restrictive sense, i.e. should not be considered so as to limit the scope of the present invention. It should be understood, as obvious to a person skilled in the art, that other suitable components and geometries and / or other possible cooperations between them may be used for the system according to the present invention, as will be described below, without departing from the scope of the invention.

[0039] In addition, expressions such as "system", "equipment", "movement", "suspension", "drawbar", "boom", "hitch", "coupling", "articulation", "connection", "connector", "kit", "device 1, "assembly", "mechanism", "product", "apparatus", "operator", "controller", etc., as well as any other equivalent expression and / or words composed of them, may be used interchangeably in the context of this description, as obvious to a person skilled in the art. This also applies to other expressions which are mutually equivalent, such as, for example: a) "hitch", "connect", "articulate", "tow", "couple", "anchor", etc.; b) "vehicle", "tractor", "trailer", "spreader", etc.; c) "actuator", "jack", "control", "movement", "adjustment", "suspension", "damping", etc.); d) "controller", "operator", "robot", "control", "computer", "circuit", "hardware", "software", "mechanical, electronic, electronic and / or computer component(s)", etc.; as well as any other mutually equivalent expressions, related to the above-mentioned expressions and / or to any other structural and / or functional aspects of the present invention, as also obvious to a person skilled in the art.

[0040] Furthermore, in the context of the present description, it is to be considered that all elongated objects implicitly have a "longitudinal axis" and / or a "center line", such as the longitudinal axis of a rod, for example, or the center line of a conduit, and that expressions such as "connected" and "connectable", or "pivotable" and "pivotable", may be interchanged and are mutually equivalent, in that the present invention also relates to a kit with corresponding components for assembling a resulting fully assembled and operational equipment and / or system for implementing the present method and / or obtaining any resulting and / or derived product.

[0041] In addition, certain components of the present system and / or steps of the present method described in this specification may be modified, simplified, omitted and / or interchanged, without departing from the scope of the present invention, depending on the particular applications for which the present system is designed and / or intended, and also depending on the desired results, as briefly described herein and as also obvious to a person skilled in the art.

[0042] Overview of the new approach proposed herein:

[0043] Generally speaking, the present invention, as exemplified in the embodiments given by way of example only in the attached figures, consists of a wheel moving mechanism which can serve different functions, such as acting as a suspension system (e.g. hydraulic suspension and / or other) for a trailer, combining movable elements on the drawbar and on at least one corresponding axle (for example), when the trailer is coupled to a tractor (for example also), for the purpose of ensuring better load distribution on variable and / or uneven terrain, etc.

[0044] By adding a joint to the drawbar, equipping it with actuator(s) (e.g. hydraulic cylinder(s), etc.) and revising the hydraulic connections, it is notably possible to cross larger obstacles and / or cope with a greater difference in level while maintaining optimal load distribution. Reading the following paragraphs, associated with the drawings, will allow a better understanding of how the announced advantages are associated with the technical novelties of the invention.

[0045] List of preferred numerical references and / or corresponding components illustrated in the attached figures and / or being possible for the present system:

[0046] I. travel system (and / or damping system, load distribution system, wheel adjustment system, etc.)

[0047] 3. vehicle

[0048] 3a. traction vehicle (e.g. tractor, etc.)

[0049] 3b. towed vehicle (e.g. trailer, spreader, etc.)

[0050] 5. wheel (e.g. front, rear, effective, independent and / or other wheel)

[0051] 5a. front wheel

[0052] 5b. rear wheel

[0053] 5th effective wheel

[0054] 5i. independent wheel

[0055] 7. chassis (e.g. of the trailed vehicle)

[0056] 9. tiller

[0057] 9o. drawbar-actuator connection (e.g. pivot, etc.)

[0058] II. axis of rotation (of the drawbar)

[0059] 13. drawbar

[0060] 15. coupling device

[0061] 17. given displacement surface

[0062] 19. axle(s)

[0063] 21. actuator (of the displacement system - e.g. hydraulic cylinder)

[0064] 23. longitudinal axis of movement (e.g. of the trailed vehicle)

[0065] 25. support arm assembly

[0066] 27. suspension device

[0067] 29. connection device 31. hydraulic circuit (of the travel system)

[0068] 33. connection to the tractor (e.g. hydraulic connection)

[0069] 34. quick connector (eg. hydraulic quick connector)

[0070] 35. valve (eg hydraulic valve)

[0071] 111. drive device (of the movement system)

[0072] A. first degree of freedom (e.g. axis of rotation - pitch adjustment)

[0073] B. second degree of freedom (e.g. axis of rotation - yaw adjustment)

[0074] C. third degree of freedom (e.g. axis of rotation - roll adjustment) Q. tiller displacement (e.g. rotational, angular displacement, etc.)

[0075] The present travel system (e.g. suspension system, damping system, load distribution system, wheel adjustment system and / or other possible function(s) and / or application(s), etc.) (and the different inventive aspects thereof) may be embodied in different forms and / or expressions, comprising one and / or more of the following components and features (and / or different combination(s) and / or permutation(s) thereof), given as preferred and / or optional embodiment(s) only: i.) A travel system (and / or a suspension, load distribution and / or other system, etc.) for a trailed vehicle intended to be pulled by a traction vehicle, the travel system comprising: a series of front wheels adapted to be mounted on a front section of a chassis of the trailed vehicle; a series of rear wheels suitable for mounting on a subsequent section (eg.a rear, middle and / or other section) of the chassis of the trailed vehicle; a movable drawbar capable of being pivotally mounted relative to the chassis of the trailed vehicle, and capable of pivoting about at least one corresponding axis of rotation, the drawbar being connectable to a drawbar of the towing vehicle by means of a coupling device; and a drive device for driving in displacement (e.g. vertical and / or other displacement) the corresponding axis of rotation of the drawbar relative to the chassis of the trailed vehicle, in response to a given surface of displacement. ii.) A displacement system according to any one of the preceding combinations, wherein the drive device is further configured to drive in displacement (e.g. vertical and / or other displacement) at least one effective wheel of said wheels of the displacement system relative to the chassis of the trailed vehicle, in response to a corresponding topology of the given surface of displacement.iii.) A travel system according to any of the preceding combinations, wherein said at least one effective wheel of the travel system is adapted to be moved in position (e.g., in height, in distance, etc.) relative to the chassis of the trailed vehicle, in response to the corresponding topology of the given travel surface. iv.) A travel system according to any of the preceding combinations, wherein said at least one effective wheel of the travel system is operatively connectable (e.g., hydraulically, mechanically, electronically and / or otherwise, either directly and / or indirectly, etc.) to the drive device, and wherein said at least one effective wheel of the travel system is adapted to be moved via the drive device (e.g.,in response to a corresponding movement of the drawbar, and / or in response to a corresponding topology "detected" by the towing vehicle and / or by the trailed vehicle during a corresponding movement, etc.). v.) A travel system according to any of the preceding combinations, wherein a given movement of the drawbar causes a corresponding reverse movement of said at least one effective wheel of the travel system (e.g., a "lift" of the drawbar causes a "lowering" of said at least one effective wheel, and a "lowering" of the drawbar causes a "lifting" of said at least one effective wheel). vi.) A travel system according to any of the preceding combinations, wherein the drive device comprises at least one first actuator (e.g., controller, device, lever, and / or etc.) for adjusting (e.g., controlling, modifying, changing, correcting, etc.) a positioning (e.g.,vertical and / or other positioning) of the axis of rotation of the drawbar relative to the chassis of the trailed vehicle. vii.) A movement system according to any of the preceding combinations, wherein the drive device comprises at least one second actuator (e.g. controller, device, lever, and / or etc.) for adjusting (e.g. controlling, modifying, changing, correcting, etc.) a positioning (e.g. vertical and / or other positioning) of said at least one effective wheel relative to the chassis of the trailed vehicle. viii.) A movement system according to any of the preceding combinations, wherein at least one given actuator (e.g. said first actuator(s) and / or said second actuator(s)) is adapted to be arranged operatively (e.g. hydraulically, mechanically, electronically and / or otherwise, either directly and / or indirectly, etc.) between a given part (e.g. fixed part, and / or other, etc.) of the chassis of the trailed vehicle and an axle of said at least one effective wheel of the travel system. ix.) A travel system according to any of the preceding combinations, wherein said at least one first actuator and said at least one second actuator are interconnected to each other. x.) A travel system according to any of the preceding combinations, wherein a given pair of actuators of the travel system comprises at least one proactive actuator and at least one reactive actuator (e.g., said at least one first actuator may comprise at least one proactive actuator and said at least one second actuator may comprise at least one reactive actuator, and / or vice versa). xi.) A travel system according to any of the preceding combinations, wherein said given pair of actuators comprises hydraulic cylinders forming part of a same hydraulic circuit (e.g.,said at least one first actuator and said at least one second actuator may comprise hydraulic cylinders forming part of the same hydraulic circuit, etc. - it should be noted that any other different and / or advantageous arrangement is also conceivable with the present movement system, as obvious to a person skilled in the art). xii.) A movement system according to any one of the preceding combinations, in which each actuator is a hydraulic cylinder. xiii.) A movement system according to any one of the preceding combinations, in which the axis of rotation of the drawbar is arranged transversely with respect to a longitudinal axis of movement of the chassis of the trailed vehicle. xiv.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one wheel being pivotable relative to at least one corresponding axle being arranged substantially parallel to the axis of rotation of the drawbar. xv.) A travel system according to any one of the preceding combinations, wherein said at least one corresponding axle is capable of being moved relative to the chassis of the trailed vehicle by means of a set of support arms having pivotable ends. xvi.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one front wheel being pivotable relative to at least one corresponding front axle. xvii.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one pair of front wheels. xviii.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one pair of front wheels being pivotable relative to at least one corresponding front axle. xix.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one pair of front wheels each being pivotable relative to at least one corresponding given front axle. xx.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least two pairs of corresponding front wheels. xxi.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one rear wheel being pivotable relative to at least one corresponding rear axle. xxii.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one pair of rear wheels. xxiii.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one pair of rear wheels being pivotable relative to at least one corresponding rear axle. xxiv.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least one pair of rear wheels each being pivotable relative to at least one corresponding rear axle. xxv.) A travel system according to any one of the preceding combinations, wherein said at least one effective wheel comprises at least two corresponding rear wheel pairs. xxvi.) A travel system according to any of the preceding combinations, wherein said at least one effective wheel comprises at least three pairs of corresponding rear wheels. xxvii.) A travel system according to any of the preceding combinations, wherein at least one independent wheel of the travel system is capable of moving freely (e.g., in height, independently of the other wheels, and / or of a main drive device and / or of a corresponding circuit, etc.) relative to the chassis of the trailed vehicle. xxviii.) A travel system according to any of the preceding combinations, wherein said at least one independent wheel is a side wheel (e.g., left side and / or right side of the chassis, and / or of any other component) of the travel system. xxix.) A movement system according to any one of the preceding combinations, in which said at least one independent wheel is among at least one of the two sets of wheels (e.g., set of front wheels and / or set of rear wheels). xxx.) A movement system according to any one of the preceding combinations, in which said at least one independent wheel comprises a plurality of independent wheels. xxxi.) A movement system according to any one of the preceding combinations, in which said plurality of independent wheels comprises at least one left independent wheel and at least one right independent wheel. xxxii.) A displacement system according to any one of the preceding combinations, in which said at least one left independent wheel and said at least one right independent wheel are among the series of rear wheels, and in which said at least one left independent wheel is movable independently of said at least one right independent wheel (and vice versa). xxxiii.) A displacement system according to any one of the preceding combinations, in which said plurality of independent wheels comprises a plurality of left independent wheels and a plurality of right independent wheels. xxxiv.) A displacement system according to any one of the preceding combinations, in which each independent wheel is connected to a corresponding hydraulic circuit. xxxv.) A displacement system according to any one of the preceding combinations, in which each independent wheel on the same side (e.g.left side and / or right side of the chassis of the trailed vehicle) is movable independently of another independent wheel on the same side. xxxvi.) A travel system according to any of the preceding combinations, in which the series of front wheels is interconnected with the series of rear wheels via the same drive device. xxxvii.) A travel system according to any of the preceding combinations, in which the series of front wheels is drivable independently of the series of rear wheels. xxxviii.) A travel system according to any of the preceding combinations, in which each series of wheels is provided with a corresponding hydraulic circuit. xxxix.) A movement system according to any one of the preceding combinations, in which the series of front wheels are interconnectable via a first hydraulic circuit, and in which the series of rear wheels are interconnectable via a second hydraulic circuit being distinct (e.g. separate, different, etc.) from the first hydraulic circuit. xl.) A movement system according to any one of the preceding combinations, in which the drive device is configured to cooperate with the first hydraulic circuit. xli.) A movement system according to any one of the preceding combinations, in which said at least one effective wheel of the movement system is capable of being provided with at least one corresponding suspension (and / or damping) device. xlii.) A travel system according to any of the preceding combinations, wherein at least one wheel other than said at least one effective wheel of the travel system is adapted to be provided with at least one corresponding suspension (and / or damping) device as well. xliii.) A travel system according to any of the preceding combinations, wherein each wheel of the travel system is adapted to be provided with at least one corresponding suspension (and / or damping) device. xliv.) A travel system according to any of the preceding combinations, wherein the travel system acts as a suspension (and / or damping) system for the trailed vehicle. xlv.) A travel system according to any of the preceding combinations, wherein the trailed vehicle is a trailer or a spreader (and / or any other given / suitable type of vehicle). xlvi.) A travel system according to any of the preceding combinations, wherein the towing vehicle is a tractor. xlvii.) A travel system according to any of the preceding combinations, wherein the coupling device is configured to allow adjustment along at least one degree of freedom. xlviii.) A travel system according to any of the preceding combinations, wherein the coupling device is configured to allow pitch adjustment. xlix.) A travel system according to any of the preceding combinations, wherein the coupling device is configured to allow yaw adjustment.

[0076] I.) A movement system according to any of the preceding combinations, wherein the coupling device is configured to allow roll adjustment. li.) A movement system according to any of the preceding combinations, wherein the coupling device is a coupling device such as that described in patent application No. PCT / CA2022 / 051243 dated August 16, 2022 (e.g., the contents of this application being incorporated fully and / or selectively by reference). lii.) A movement system according to any of the preceding combinations, wherein the drawbar is configured to allow movement (e.g., tilting, pivoting, rotating, raising / lowering, extending / contracting, etc.) along at least one degree of freedom. liii.) A travel system according to any of the preceding combinations, wherein the drawbar is adapted to be connected to the chassis of the trailed vehicle by means of a corresponding connection device (e.g. rivet(s), bolt(s) and / or nut(s), rod(s) and / or pin(s), etc.). liv.) A travel system according to any of the preceding combinations, wherein at least one corresponding suspension (and / or damping) device is operatively arranged (e.g. hydraulically, mechanically, electronically and / or otherwise, either directly and / or indirectly, etc.) between the axis of rotation of the drawbar and said at least one effective wheel of said wheels of the travel system.

[0077] Iv.) A kit with corresponding components for assembling a movement system in any of the preceding combinations.

[0078] Ivi.) A trailed vehicle having a travel system in any of the preceding combinations.

[0079] Ivii.) A combination of a trailed vehicle being drawn by a traction vehicle through a coupling device, the trailed vehicle being provided with a travel system according to any of the preceding combinations.

[0080] Iviii.) A method of moving a trailed vehicle over a given travel surface, the method comprising the steps of: a) providing a trailed vehicle having a travel system according to any of the preceding combinations; b) connecting the drawbar of the trailed vehicle to the drawbar of a towing vehicle via a coupling device; and c) causing the axis of rotation of the drawbar to move vertically relative to the chassis of the trailed vehicle, in response to a positioning of at least one effective wheel of said wheels, during travel of the trailed vehicle via its wheels over said given travel surface.

[0081] Of course, several modifications and / or other alternatives and / or other technical / mechanical equivalents could be made to the present system and / or to the components and / or to the corresponding steps thereof, without departing from the present invention, as obvious to a person skilled in the art. In particular, and as previously mentioned, the present moving system can serve as an "other" system (e.g., suspension, damping, load repair, etc.) for a trailer (for example), and therefore, the different aspects of this system can also be materialized in different forms and / or expressions, comprising one and / or more of the following components and characteristics (and / or different combination(s) and / or permutation(s) thereof), given as preferred and / or optional embodiment(s) only: i.A coupling system for connecting a towing vehicle and a towed vehicle, the coupling system comprising: a main connection assembly positioned, shaped and dimensioned to receive a portion of a drawbar of the towing vehicle (commonly referred to as a drawbar); a main connection assembly operatively connecting the drawbar of the towing vehicle and the drawbar of the trailer; a main connection assembly at the drawbar providing the possibility and range of rotational movement along the three axes: pitch, roll and yaw. ii. A connection system connecting the drawbar to the frame of the spreader, the system comprising: a set of support(s) fixedly connected to the frame of the spreader and located in front of the first axle of the spreader; a set of fixed support(s) providing one or more holes to accommodate the drawbar mounting pin(s). iii.A connection system in which the items described above are operatively connected by means of at least one fastener (e.g. rivet, bolt and nut, rod and pin, etc.) while allowing the possibility of rotation of the drawbar relative to the transverse axis of the spreader. iv. A hydraulic cylinder system for limiting and controlling the position of the drawbar, the hydraulic system comprising: a set of cylinder support(s) fixedly connected to the frame of the spreader and a set of cylinder support(s) fixedly connected to the drawbar; a set of cylinder supports located between the connection system of the drawbar to the frame of the spreader and the coupling system to the tractor; a set of hydraulic cylinder(s) whose ends are operatively connected to the supports by the use of at least one fastener (e.g. bolt and nut, rod and pin). v.A multi-axle system on which a hydraulic suspension system is installed, the hydraulic suspension system comprising: a set of cylinder support(s) fixedly connected to the chassis of the spreader and a set of cylinder support(s) fixedly connected to the axle; a set of hydraulic cylinder(s) whose ends are operatively connected to the supports by the use of at least one fastener (e.g. bolt and nut, rod and pin). vi. A first hydraulic connection system connecting the rear axles of the spreader, the hydraulic system comprising: a set of hydraulic conduits and fittings connecting the various suspension cylinders together; a set of hydraulic hoses, fittings and quick connectors allowing connection to the hydraulic outputs of the traction vehicle.This connection allows the suspension height of the axle group in question to be adjusted by injecting or removing oil; a set of manual valves located between the quick connector connecting to the towing vehicle and the cylinder. Valve allowing a closed hydraulic system to be created for the suspension elements and to bleed the residual pressure from the hydraulic lines between the valve and the towing vehicle. a hydraulic connection method allowing the right and left sides of the suspension elements to be controlled individually. vii. A second hydraulic connection system connecting the front axle(s) of the spreader and the drawbar cylinder(s), the hydraulic system comprising: a set of hydraulic lines and fittings connecting the various suspension cylinders together; a set of hydraulic hoses, fittings and quick connectors allowing connection to the hydraulic outlets of the towing vehicle.This connection (piston side of the cylinders) allows the suspension height of the targeted axle group to be adjusted by injecting or withdrawing oil; a set of manual valves located between the quick connector connecting to the towing vehicle and the cylinder. Valve to create a closed hydraulic system for the suspension elements and to bleed residual pressure from the hydraulic lines between the valve and the towing vehicle; a hydraulic connection method to individually control the right and left sides of the suspension elements. viii.A load distribution system for a trailed vehicle being coupled to a traction vehicle, the load distribution system comprising: a multi-axle rolling assembly; a set of movable drawbar(s); a first hydraulic suspension assembly where the set of front axle(s) is / are connected with the movable drawbar; a second hydraulic suspension assembly where the set of right-hand rear axles are connected to each other; a third hydraulic suspension assembly where the set of left-hand rear axles are connected to each other. ix. A distribution system according to any of the preceding combinations, where the set of movable drawbar(s) comprises: an assembly for connecting the drawbar to the chassis of the trailed vehicle allowing rotation about the transverse axis of this trailed vehicle; a system for connecting the drawbar to the bar of the towing vehicle coupling allowing rotation in the three axes: pitch, roll and yaw. x.A load distribution system according to any of the preceding combinations, on which a system of hydraulic cylinder(s) is assembled to ensure the positioning and / or blocking of the movement of the drawbar relative to the chassis of the trailed vehicle. xi. A drawbar system according to any of the preceding combinations, on which the hydraulic circuit of the hydraulic cylinder of the drawbar allows coupling with the suspension cylinders of the front axle(s) of the trailed vehicle. xii. A trailed vehicle according to any of the preceding combinations, where the hydraulic connection of the suspension elements of the rear axles is isolated from the suspension elements of the drawbar and the front axle(s). xiii. A suspension system for a trailed vehicle (e.g. trailer, spreader, etc.), the trailed vehicle being attachable to a towing vehicle by a coupling system, the suspension system comprising: a chassis; a running gear assembly fixed to said chassis, the running gear assembly comprising a plurality of axles; a drawbar removably attached to said chassis; a first suspension assembly (hydropneumatic) connecting the drawbar and a first group of axles, the first group of axles comprising at least one first axle; a second suspension assembly (hydropneumatic) connecting a second group of axles, the second group of axles comprising at least one second axle. xiv. The suspension system according to any of the preceding combinations, wherein the first and second suspension assemblies are mechanically uncoupled. xv. The suspension system according to any of the preceding combinations, wherein the drawbar is pivotally attached to the chassis (e.g. rivet, bolt and nut, rod and pin, etc.). xvi.The suspension system according to any of the preceding combinations, wherein at least one of the first and second suspension assemblies is a hydraulic suspension assembly (using a hydraulic fluid, e.g., based on synthetic esters, mineral oils, vegetable oils, etc.). xvii. The suspension system according to any of the preceding combinations, wherein the first suspension assembly comprises a set of hydraulic cylinders having a first end operatively attached to the chassis and a second end operatively attached to the drawbar. xviii. The suspension system according to any of the preceding combinations, wherein each of the first and second suspension assemblies comprises at least one set of hydraulic cylinders having a first end operatively attached to the chassis and a second end operatively attached to an axle. xix.The suspension system according to any one of the preceding combinations, wherein each of the first and second suspension assemblies comprises a left suspension member and a right suspension member operatively attached to an axle. xx. The suspension system according to any one of the preceding combinations, wherein the drawbar comprises a first coupling of the hitch system. xxi. The suspension system according to any one of the preceding combinations, wherein the hydraulic cylinder assembly is attached to the drawbar at a point along said drawbar between the first coupling and a pivot point of said drawbar. xxii. The suspension system according to any one of the preceding combinations, wherein the first coupling is shaped and dimensioned to receive at least a portion of a drawbar of the towing vehicle. xxiii.The suspension system according to any one of the preceding combinations, wherein the first suspension assembly comprises a first hydraulic circuit interconnecting one or more hydraulic cylinders of said first suspension assembly. xxiv. The suspension system according to any one of the preceding combinations, wherein the second suspension assembly comprises a second hydraulic circuit interconnecting one or more hydraulic cylinders of said second suspension assembly. xxv. The suspension system according to any one of the preceding combinations, wherein the first and second hydraulic circuits comprise one or more hydraulic hoses, fittings, etc., interconnecting the hydraulic cylinders of each of the first and second suspension assemblies. xxvi.The suspension system according to any one of the preceding combinations, wherein at least one of the first and second hydraulic circuits is adapted to be fluidically connected to a hydraulic circuit of the traction vehicle (the hydraulic circuit of the traction vehicle preferably being pressurized). xxvii. The suspension system according to any one of the preceding combinations, wherein each of the first and second suspension assemblies comprises a hydraulic connector adapted to connect one of the first and second hydraulic circuits to the hydraulic circuit of the traction vehicle. xxviii. The suspension system according to any one of the preceding combinations, wherein at least one of the first and second hydraulic circuits comprises a valve adapted to fluidically selectively isolate the first or second hydraulic circuit. xxix.The suspension system according to any one of the preceding combinations, wherein at least one of the first and second hydraulic circuits is fluidically isolated from the hydraulic circuit of the traction vehicle. xxx. The suspension system according to any one of the preceding combinations, wherein the valve is located downstream of the hydraulic connector. xxxi. The suspension system according to any one of the preceding combinations further comprising one or more manual controls. xxxii. The suspension system according to any one of the preceding combinations further comprising one or more hydraulic controls. xxxiii. The suspension system according to any one of the preceding combinations, wherein the one or more hydraulic controls are adapted to control the valve. xxxiv.The suspension system according to any one of the preceding combinations, wherein at least one of the first and second hydraulic circuits comprises a left hydraulic circuit and a right hydraulic circuit, the left and right hydraulic circuits being fluidically dissociated. xxxv. The suspension system according to any one of the preceding combinations, wherein the second suspension assembly is positioned on the trailed vehicle downstream of the first suspension assembly relative to a direction defined by a forward movement of the towing vehicle. xxxvi. The suspension system according to any one of the preceding combinations, wherein each of the first and second suspension assemblies comprises a hydraulic fluid, the hydraulic fluid being one of water-based hydraulic fluids, petroleum-based hydraulic fluids, and synthetic hydraulic fluids. xxxvii.The suspension system according to any of the preceding combinations, wherein the hitch system comprises at least one of a pitch adjustment assembly, a yaw adjustment assembly and a roll adjustment assembly. xxxviii.A suspension system for a trailed vehicle, the trailed vehicle being attachable to a towing vehicle by a coupling system, the suspension system comprising: a chassis; a running gear assembly secured to said chassis, the running gear assembly comprising a plurality of axles; a drawbar pivotally attached to said chassis; a first hydraulic suspension assembly connecting the drawbar and a first group of axles, the first hydraulic suspension assembly comprising a first hydraulic circuit; a second hydraulic suspension assembly connecting a second group of axles, the second hydraulic suspension assembly comprising a second hydraulic circuit; wherein the first and second hydraulic suspension assemblies are mechanically uncoupled; and wherein at least one of the first and second hydraulic circuits is adapted to be fluidically connected to a hydraulic circuit of the towing vehicle. xxxix.A trailed vehicle being provided with the suspension system according to any one of the preceding combinations. xl. A method of connecting a trailed vehicle to a traction vehicle, the traction vehicle being provided with a pressurized hydraulic circuit, the method comprising: attaching a first coupling of a pivoting drawbar of the trailed vehicle to a second coupling of the traction vehicle; fluidly connecting a first hydraulic circuit of the traction vehicle to the pressurized hydraulic circuit of the traction vehicle, the first hydraulic circuit being connected to a first suspension assembly adapted to dampen a movement of the pivoting drawbar; and fluidly connecting a second hydraulic circuit of the traction vehicle to the pressurized hydraulic circuit of the traction vehicle. xli.The method according to any one of the preceding combinations further comprising regulating the circulation of a hydraulic fluid between at least one of the first and second hydraulic circuits of the trailed vehicle and the pressurized hydraulic circuit of the traction vehicle. xlii. The method according to any one of the preceding combinations, wherein the step of fluidically connecting the first hydraulic circuit of the trailed vehicle to the pressurized hydraulic circuit of the traction vehicle comprises a step of connecting a first left hydraulic circuit and a first right hydraulic circuit to the pressurized hydraulic circuit. xliii.The method according to any one of the preceding combinations, wherein the step of fluidly connecting the second hydraulic circuit of the trailed vehicle to the pressurized hydraulic circuit of the towing vehicle comprises the step of connecting a second left hydraulic circuit and a second right hydraulic circuit to the pressurized hydraulic circuit. xliv. A suspension element (e.g., coil springs, leaf spring, torsion bar, hydropneumatic, etc.) for a trailed vehicle (e.g., trailer, spreader, etc.), the trailed vehicle comprising a removable drawbar being attachable to a towing vehicle by a coupling system, the suspension element comprising: a first end operatively attached to a frame of the trailed vehicle; and a second end operatively attached to the removable drawbar; wherein the suspension element is operatively coupled to one of a plurality of suspension assemblies of the trailed vehicle. xlv.The suspension member according to any one of the preceding combinations, wherein the second end is attached to the drawbar at a point along said drawbar between a coupling of the drawbar and a pivot point of the drawbar. xlvi. A method of distributing a load of a trailed vehicle over a plurality of suspension assemblies, the method comprising: distributing a load exerted on a removable drawbar of the vehicle and at least a first axle of the trailed vehicle over a first suspension assembly; and distributing a load exerted on a second axle of the trailed vehicle over a second suspension assembly. xlvii. The method according to any one of the preceding combinations, wherein distributing the load exerted on the second axle comprises distributing the load exerted on the second axle over a second left suspension assembly and a second right suspension assembly.

[0082] As can now be better appreciated in view of the foregoing, the present invention is particularly advantageous insofar as, in particular and among several other advantages, it allows for a greater range of motion due to the fact that an additional articulation is provided at the drawbar. In combination with the drawbar articulation, the proposed hydraulic connection of the present travel system (e.g., suspension system and / or the like) advantageously allows the load to be distributed efficiently and evenly on the various axles throughout this new range of motion, etc.

[0083] Finally, and according to the present invention, the moving equipment (and / or resulting system, etc.) and its corresponding components are preferably made of substantially rigid materials, such as metallic materials (stainless steel, titanium, etc.), hardened polymers, composite materials, and / or any other suitable material, while the other components of the system according to the present invention, in order to obtain the advantages discussed above, may be made of any other suitable material, such as polymeric materials (plastic, rubber, etc.), and / or any other suitable material, depending on the particular applications for which the system is designed and the various parameters involved, as obvious to a person skilled in the art.

[0084] Although the present invention has been previously explained by way of preferred embodiments thereof, it should be made clear that any modification to these preferred embodiments is not considered to change or alter the nature and scope of the present invention. Indeed, the appended claim(s) should not be limited in its scope by the preferred embodiments illustrated in the examples, but should be given the broadest interpretation consistent with the description as a whole.

Claims

CLAIMS:

1. A moving system (1) for a trailed vehicle (3b) intended to be pulled by a traction vehicle (3a), the moving system (1) comprising: a series of front wheels (5a) adapted to be mounted on a front section of a chassis (7) of the trailed vehicle (3b); a series of rear wheels (5b) adapted to be mounted on a subsequent section of the chassis (7) of the trailed vehicle (3b); a movable drawbar (9) adapted to be pivotally mounted relative to the chassis (7) of the trailed vehicle (3b), and adapted to pivot about at least one corresponding axis of rotation (11), the drawbar (9) being connectable to a drawbar (13) of the traction vehicle (3a) by means of a coupling device (15); and a drive device (111) for driving the corresponding rotation axis (11) of the drawbar (9) to move relative to the chassis (7) of the trailed vehicle (3b), in response to a given displacement surface (17).

2. A movement system (1) according to claim 1, wherein the drive device (111) is further configured to drive at least one effective wheel (5e) of said wheels of the movement system (1) into movement relative to the chassis (7) of the trailed vehicle (3b), in response to a corresponding topology of the given movement surface (17).

3. A movement system (1) according to claim 1 or 2, wherein said at least one effective wheel (5e) of the movement system (1) is adapted to be moved in position relative to the chassis (7) of the trailed vehicle (3b), in response to the corresponding topology of the given movement surface (17).

4. A movement system (1) according to claim 2 or 3, wherein said at least one effective wheel (5e) of the movement system (1) is operatively connectable to the drive device (111), and wherein said at least one effective wheel (5e) of the movement system (1) is adapted to be moved via the drive device (111).

5. A movement system (1) according to any one of claims 2-4, wherein a given movement of the drawbar (9) causes a corresponding reverse movement of said at least one effective wheel (5e) of the movement system (1).

6. A movement system (1) according to any one of claims 1-5, wherein the drive device (111) comprises at least one first actuator (21) for adjusting a positioning of the axis of rotation (11) of the drawbar (9) relative to the chassis (7) of the trailed vehicle (3b).

7. A movement system (1) according to claim 6, wherein the drive device (111) comprises at least one second actuator (21) for adjusting a positioning of said at least one effective wheel (5e) relative to the chassis (7) of the trailed vehicle (3b).

8. A movement system (1) according to any one of claims 1-7 in combination with claim 2, wherein at least one given actuator (21) is adapted to be operatively arranged between a given part of the chassis (7) of the trailed vehicle (3b) and an axle (19) of said at least one effective wheel (5e) of the movement system (1).

9. A movement system (1) according to claim 7, wherein said at least one first actuator (21) and said at least one second actuator (21) are interconnected to each other.

10. A movement system (1) according to any one of claims 6-9, wherein a given pair of actuators (21) of the system displacement (1) comprises at least one proactive actuator (21) and at least one reactive actuator (21).

11. A displacement system (1) according to claim 10, wherein said pair of given actuators (21) comprises hydraulic cylinders forming part of the same hydraulic circuit (31).

12. A displacement system (1) according to any one of claims 6-11, wherein each actuator (21) is a hydraulic cylinder.

13. A movement system (1) according to any one of claims 1-12, wherein the axis of rotation (11) of the drawbar (9) is arranged transversely relative to a longitudinal axis of movement (23) of the chassis (7) of the trailed vehicle (3b).

14. A moving system (1) according to any one of claims 1-13 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one wheel (5) being pivotable relative to at least one corresponding axle (19) being arranged substantially parallel to the axis of rotation (11) of the drawbar (9).

15. A moving system (1) according to claim 14, wherein said at least one corresponding axle (19) is adapted to be moved relative to the chassis (7) of the trailed vehicle (3b) by means of a set of support arms (25) having pivoting ends.

16. A movement system (1) according to any one of claims 1-15 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one front wheel (5a) being pivotable relative to at least one corresponding front axle (19).

17. A movement system (1) according to any one of claims 1-16 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one pair of front wheels (5a).

18. A movement system (1) according to any one of claims 1-17 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one pair of front wheels (5a) being pivotable relative to at least one same corresponding front axle (19).

19. A movement system (1) according to any one of claims 1-17 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one pair of front wheels (5a) each being pivotable relative to at least one corresponding given front axle (19).

20. A movement system (1) according to any one of claims 1-19 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least two pairs of corresponding front wheels (5a).

21. A movement system (1) according to any one of claims 1-20 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one rear wheel (5b) being pivotable relative to at least one corresponding rear axle (19).

22. A movement system (1) according to any one of claims 1-21 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one pair of rear wheels (5b).

23. A movement system (1) according to any one of claims 1-22 in combination with claim 2, wherein said at less effective wheel (5e) comprises at least one pair of rear wheels (5b) being pivotable relative to at least one corresponding rear axle (19).

24. A movement system (1) according to any one of claims 1-22 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least one pair of rear wheels (5b) each being pivotable relative to at least one corresponding given rear axle (19).

25. A movement system (1) according to any one of claims 1-24 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least two pairs of corresponding rear wheels (5b).

26. A movement system (1) according to any one of claims 1-25 in combination with claim 2, wherein said at least one effective wheel (5e) comprises at least three pairs of corresponding rear wheels (5b).

27. A movement system (1) according to any one of claims 1-26, wherein at least one independent wheel (5i) of the movement system (1) is able to move freely relative to the chassis (7) of the trailed vehicle (3b).

28. A movement system (1) according to claim 27, wherein said at least one independent wheel (5i) is a side wheel (5) of the movement system (1).

29. A movement system (1) according to claim 27 or 28, wherein said at least one independent wheel (5i) is among at least one of the two sets of wheels (5a, 5b, 5e).

30. A movement system (1) according to any one of claims 27-29, wherein said at least one independent wheel (5i) comprises a plurality of independent wheels (5i).

31. A movement system (1) according to claim 30, wherein said plurality of independent wheels (5i) comprises at least one left independent wheel (5i) and at least one right independent wheel (5i).

32. A movement system (1) according to claim 31, wherein said at least one left independent wheel (5i) and said at least one right independent wheel (5i) are among the series of rear wheels (5b), and wherein said at least one left independent wheel (5i) is movable independently of said at least one right independent wheel (5i).

33. A movement system (1) according to any one of claims 30-32, wherein said plurality of independent wheels (5i) comprises a plurality of left independent wheels (5i) and a plurality of right independent wheels (5i).

34. A displacement system (1) according to any one of claims 27-33, wherein each independent wheel (5i) is connected to a corresponding hydraulic circuit (31).

35. A movement system (1) according to any one of claims 27-34, wherein each independent wheel (5i) on the same side is movable independently of another independent wheel (5i) on that same side.

36. A movement system (1) according to any one of claims 1-35, wherein the series of front wheels (5a) is interconnected with the series of rear wheels (5b) via the same drive device (111).

37. A movement system (1) according to any one of claims 1-36, wherein the front wheel set (5a) is independently drivable from the rear wheel set (5b).

38. A movement system (1) according to any one of claims 1-37, wherein each series of wheels (5a, 5b, 5e) is provided with a corresponding hydraulic circuit (31).

39. A movement system (1) according to any one of claims 1-38, wherein the series of front wheels (5a) are interconnectable via a first hydraulic circuit (31), and wherein the series of rear wheels (5b) are interconnectable via a second hydraulic circuit (31) being separate from the first hydraulic circuit (31).

40. A movement system (1) according to any one of claims 1-39, wherein the drive device (111) is configured to cooperate with the first hydraulic circuit (31).

41. A movement system (1) according to any one of claims 1-40 in combination with claim 2, wherein said at least one effective wheel (5e) of the movement system (1) is adapted to be provided with at least one corresponding suspension device (27).

42. A movement system (1) according to any one of claims 1-41 in combination with claim 2, wherein at least one wheel (5) other than said at least one effective wheel (5e) of the system displacement (1) is capable of being provided with at least one corresponding suspension device (27).

43. A movement system (1) according to any one of claims 1-42, wherein each wheel (5) of the movement system (1) is adapted to be provided with at least one corresponding suspension device (27).

44. A travel system (1) according to any one of claims 1-43, wherein the travel system (1) acts as a suspension system for the trailed vehicle (3b).

45. A moving system (1) according to any one of claims 1-44, wherein the towed vehicle (3b) is a trailer or a spreader.

46. ​​A moving system (1) according to any one of claims 1-45, wherein the traction vehicle (3a) is a tractor.

47. A movement system (1) according to any one of claims 1-46, wherein the coupling device (15) is configured to allow adjustment along at least one degree of freedom (A,B,C).

48. A movement system (1) according to any one of claims 1-47, wherein the coupling device (15) is configured to allow pitch adjustment (A).

49. A travel system (1) according to any one of claims 1-48, wherein the coupling device (15) is configured to allow yaw adjustment (B).

50. A movement system (1) according to any one of claims 1-49, wherein the coupling device (15) is configured to allow roll adjustment (C).

51. A movement system (1) according to any one of claims 1-50, wherein the coupling device (15) is a coupling device (15) according to that described in patent application no. PCT / CA2022 / 051243 dated August 16, 2022.

52. A movement system (1) according to any one of claims 1-51, wherein the drawbar (9) is configured to allow movement along at least one degree of freedom.

53. A movement system (1) according to any one of claims 1-52, wherein the drawbar (9) is adapted to be connected to the chassis (7) of the trailed vehicle (3b) by means of a corresponding connection device (29).

54. A movement system (1) according to claim 53, wherein at least one corresponding suspension device (27) is operatively arranged between the rotation axis (11) of the drawbar (9) and said at least one effective wheel (5e) of said wheels of the movement system (1).

55. A kit with corresponding components for assembling a movement system (1) according to any one of claims 1-54.

56. A trailed vehicle (3b) having a movement system (1) according to any one of claims 1-54.

57. A combination of a trailed vehicle (3b) being pulled by a traction vehicle (3a) via a coupling device (15), the trailed vehicle (3b) being provided with a movement system (1) according to any one of claims 1-54.

58. A method of moving a trailed vehicle (3b) over a given travel surface (17), the method comprising the steps of: a) providing a trailed vehicle (3b) having a travel system (1) according to any one of claims 1-54; b) connecting the drawbar (9) of the trailed vehicle (3b) to the drawbar (13) of a towing vehicle (3a) via a coupling device (15); and c) driving the rotation axis (11) of the drawbar (9) into vertical displacement relative to the chassis (7) of the trailed vehicle (3b), in response to a positioning of at least one effective wheel (5e) of said wheels, during a movement of the trailed vehicle (3b) via its wheels over said given travel surface (17).

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