Plant bale handling device

Abstract

Title: Bale Handling Device for Plant Materials. The invention relates to a bale grouper (1), comprising a pickup device (20) that picks up and conveys bales along their longitudinal direction to an exit zone (12), a bale grouping chamber (11) comprising a floor (111), a transit device (120) that rotates about a pivoting axis between a first position where the transit device is inclined, each bale sliding down a ramp (120b) by gravity from the exit zone to a receiving surface (120a), and a second position where the ramp is upright and the receiving surface forms part of the floor; a first actuator (122) that translates the ramp along a grouping direction (Z) from the second position to move the bales from the receiving surface to the bottom of the chamber (11a). Figure for the abstract: Fig. 4.

Description

Title of the invention: Device for handling bales of vegetation technical field

[0001] The present innovation relates to a machine for grouping bales of plant material such as hay, straw, or other similar plant material. This type of machine is also called a bale bundler. The invention is particularly applicable to bundlers pulled by a tractor. This invention finds a particularly advantageous application in the bundling of parallelepiped-shaped bales. STATE OF THE ART

[0002] Once cut, hay or straw is usually gathered into bales which are scattered on the ground in a field. Bale accumulators exist that collect the bales, group them, compact them, and package them into bundles of several bales. Some machines also allow the bales within a bundle to be tied together to maintain the integrity of the bundle. Once a bundle is formed, it is then placed on the ground to be collected by another machine.

[0003] More specifically, the balers, whether tractor-drawn or equipped with drive wheels, generally include a conveying system allowing the collection of bales one by one from the ground and the conveying of the bale to a grouping cage allowing the grouping and possibly the compaction of the bales into a bundle.

[0004] The conveying systems generally used have a conveyor belt or chain positioned longitudinally in the direction of travel of the tractor. These conveying systems are positioned behind the tractor. This positioning results in a significant longitudinal dimension for the machine. Driving and maneuvering the entire vehicle combination, including the tractor and the conveyor, is therefore difficult for the operator and is not suitable for all types of road surfaces.

[0005] A machine featuring a conveying system of this type is, for example, shown in document US2012055759. The positioning behind the tractor implies a significant longitudinal dimension and implies that the tractor driver must look in the opposite direction to the tractor's forward movement in order to correctly align the pickup system with the bales on the ground.

[0006] In order to reduce the overall length, document FR2460602A1 details a horizontal grouping cage positioned perpendicular to the direction of travel of the tractor, the cage being offset from the tractor. This configuration results in a significant overall length. The transverse axis. The width of the vehicle combination is therefore significant. In addition to the difficulties in driving and maneuvering, this results in a change of vehicle category for the vehicle combination, which forces the user to reduce their speed on the road.

[0007] To reduce the overall size along the transverse axis, document US761085IB 1 details a grouping cage positioned horizontally and along the longitudinal direction. To create a bale, this document shows a rotating plate that rotates the straw bales so that their longitudinal section is perpendicular to the direction of travel of the tractor. This rotating plate creates an additional area, thus further increasing the machine's longitudinal dimension.

[0008] Document ES1290184U proposes a solution to reduce the longitudinal dimension of such a machine by positioning the grouping cage vertically rather than horizontally. Vertical positioning means that the machine may not be easily maneuverable under bridges, for example, and may therefore prevent some farmers from transporting it to their fields. Furthermore, such a machine cannot be used on sloping farms because it presents a risk of tipping over.

[0009] The known systems are thus generally bulky and may not be suitable for specific farms, such as those on slopes. Furthermore, they are not adapted for use on small farms with a yield of less than 40,000 bales per year. Indeed, the cost of such a machine is too high relative to the yield of these small farms.

[0010] An object of the present invention is therefore to propose a solution for reducing the dimensions of a bale grouper while maintaining a package size satisfactory for the user, in particular to facilitate its circulation.

[0011] The other objects, features and advantages of the present invention will become apparent from an examination of the following description and accompanying drawings. It is understood that other advantages may be incorporated. SUMMARY

[0012] To achieve this objective, according to one embodiment, a bale grouper, particularly for hay or straw, is provided, configured to advance along a main direction of travel comprising - a collection device configured for: • pick up balls with a longitudinal direction and placed on a surface and, • transport the balls along a transport direction contained in a vertical plane parallel to the main direction advancing to an exit zone while maintaining the longitudinal direction of the balls parallel to a vertical plane comprising the main direction of advance, - a bale grouping chamber, configured to receive bales conveyed by the collection device and comprising a floor, the floor being configured to support several bales while maintaining the longitudinal direction of the bales parallel to a vertical plane comprising the main direction of travel, preferably the bales being arranged side by side along a grouping direction so as to form at least part of a bale bundle, the grouping direction being perpendicular to said main direction of travel, the chamber having an exit opening shaped to allow the bundle to be evacuated from the grouping chamber for evacuation by gravity onto the ground, the grouping chamber comprising a transit device shaped to move by gravity each bale from the exit zone of the collection device to the grouping chamber,the transit device comprising a ramp and a receiving surface, the transit device being mounted to rotate movably around a horizontal axis, called the tilting axis, between: , - a first position in which the ramp is inclined relative to the vertical and the receiving surface is inclined relative to the horizontal, so that each ball slides down the ramp by gravity from the exit zone of the pickup device until it reaches the receiving surface, - a second position in which the ramp straightens towards the vertical, preferably being substantially vertical, and the receiving surface is positioned so as to form part of the floor,

[0013] The grouper comprising an actuator configured to translate the ramp along the grouping direction, from the second position, so as to exert on the balls a force tending to move the balls inside the grouping chamber from the receiving surface towards a bottom of the grouping chamber.

[0014] Thus, the invention proposes a solution for obtaining a grouper with the smallest possible dimensions. Reducing the grouping chamber to a minimum size makes it possible to reduce the transverse size of the grouper while maintaining a package size that is satisfactory for the user.

[0015] According to one example, the transverse and longitudinal dimensions of the bundling machine according to the invention have been reduced so that the bundling machine can travel on the road without special permits reserved for special vehicles. The bundling machine is thus easily maneuverable on any farm, even on slopes, and allows advantageously to be used by operations having access not accessible to the dimensions of prior art grouper.

[0016] Furthermore, during grouping, the bales remain in a single direction from the entry to the exit of the grouper, namely their longitudinal direction, which is parallel to the main direction of travel of the grouper. Limiting the rotation of the bales prevents significant bulk along the longitudinal direction of the grouper. Indeed, unlike solutions provided by the prior art for grouping bales more compactly, the bales are not rotated to be positioned perpendicular to the main direction of travel of the grouper. The solution proposed here makes the grouper more compact while limiting the number of components used, thereby reducing its cost.

[0017] Finally, this solution is suitable for farms falling within a wide range of yields in terms of the number of bales packaged per year.

[0018] According to another aspect, an assembly is provided comprising a grouper according to the invention and a plurality of bales, in particular of hay or straw, the grouper being configured so that the transit device passes from the first position to the second position after at least two bales of the plurality are arranged on the ramp and in contact with each other, in the second position, one of the at least two bales being located on the other of the at least two bales.

[0019] Thus, the bale grouping in the grouping chamber has a height of at least two bales, thereby also limiting the third dimension of the grouper. The grouper, according to the invention, also has a limited height compared to solutions presented in the prior art, such as the solution in document ES1290184U, allowing the grouper to pass under bridges without difficulty and to be used in sloping fields.

[0020] According to another aspect, a bale grouper, particularly for hay or straw, is provided, configured to advance along a main direction of travel comprising: - a collection device configured for: • pick up balls with a longitudinal direction and placed on a floor and • convey the bales parallel to the main direction of travel to an exit zone, maintaining the longitudinal direction of the bales parallel to a vertical plane that includes the main direction of travel, - a bale grouping chamber, configured to receive bales conveyed by the collection device and comprising a floor, the floor being configured to support several bales while maintaining the longitudinal direction of the bales parallel to a vertical plane including the principal direction of travel, preferably the bales being arranged side by side in a grouping direction so as to form at least part of a bale bundle, the grouping direction being perpendicular to said direction of travel, the chamber having an exit opening shaped to allow the bundle to fall by gravity onto the ground, the grouping chamber including a transit device shaped to move by gravity each bale from the exit zone of the pickup device into the chamber, the transit device including a ramp and a receiving surface, the transit device being mounted to rotate about a horizontal axis, called the tilting axis, between: - a first position in which the ramp is inclined relative to the vertical so that each ball slides down the ramp by gravity from the exit zone of the collection device until it reaches the stop in the reception zone, - a second position in which the ramp rises towards the vertical so as to exert on the balls an effort tending to move the balls inside the chamber from the reception area towards a bottom of the chamber.

[0021] According to another aspect, a binding system is provided, comprising a strapping system. The strapping system comprises a frame, preferably rectangular, positioned preferably at the exit opening of a chamber of a bale bundling machine, and positioned so as to surround a bundle of bales. The frame is configured to surround a bundle of bales present in the bundling machine. Preferably, the frame is configured to surround the exit opening. The system is configured to position a tie inside the frame and, when the bundle is inside the frame, trigger the ejection of the tie from the frame and the winding and then closing of the tie around the bundle.

[0022] It should be noted that this strapping system is particularly effective, inexpensive, and compact. It can be used on a grouper independently of the transit device described above and can be protected independently.

[0023] According to this aspect, the frame comprises: - a link positioning device, the positioning device being configured to position at least one link, preferably a plurality of links, on at least part of a closed contour, preferably on the entire closed contour, preferably the positioning device is configured to push the at least one link along the frame, - a strapping head, the strapping head being configured so as to tighten and close at least one link around the package. BRIEF DESCRIPTION OF THE FIGURES

[0024] The aims, objects, features and advantages of the invention will become clearer from the detailed description of an embodiment thereof, which is illustrated by the following accompanying drawings in which:

[0025] [Fig. 1] The [Fig. 1] represents a top view of the tractor-mounted grouper according to one embodiment.

[0026] [Fig.2] Fig.2 represents a profile view of the grouper according to a mode of realization.

[0027] [Fig.3] Fig.3 represents a rear view of the grouper according to a mode of realization.

[0028] [Fig.4] Fig.4 represents a perspective view of the grouper according to an example of the invention.

[0029] [Fig.5A] Figures 5A to 5G represent the assembly of a package of a plurality of balls in a grouper according to an example of an embodiment.

[0030] [Fig.5B]

[0031] [Fig.5C]

[0032] [Fig.5D]

[0033] [Fig.5E]

[0034] [Fig.5F]

[0035] [Fig.5G]

[0036] [Fig.6A] Figures 6A, 6B and 6C represent the transit device carrying out the rotational and translational movements performed according to an example.

[0037] [Fig.6B]

[0038] [Fig.6C]

[0039] [Fig.7] Fig.7 represents a ball according to an example.

[0040] The drawings are given as examples and are not limiting of the invention. They are schematic representations of principle intended to facilitate understanding of the invention and are not necessarily to scale with practical applications. DETAILED DESCRIPTION

[0041] Before proceeding to a detailed review of embodiments of the invention, optional features that may be used in combination or alternatively are listed below:

[0042] According to one example, in the first position the ramp is inclined with respect to the vertical at an angle with the vertical substantially greater than or equal to 20°, of Preferably greater than or equal to 40°, preferably equal to 48°. Thus, the angle is sufficient to allow the balls to slide down the ramp by gravity.

[0043] According to one example, the receiving surface extends substantially perpendicularly, preferably perpendicularly to a plane in which the ramp extends mainly. Thus, the balls have one face in contact with the ramp and another face resting on the receiving area.

[0044] According to one example, the tilting axis is parallel to the main direction of advancement. Thus, the ball is integrated into the grouping chamber with its longitudinal and transverse dimensions oriented along the same plane, from the entry into the grouper to the exit from the grouper.

[0045] According to one example, a second actuator is configured to move the transit device from the first position to the second position along the tilting axis. The second actuator thus enables a rotational movement about a single axis.

[0046] According to one example, the second actuator is a linear actuator, preferably the second actuator is a cylinder, for example hydraulic, electric or pneumatic.

[0047] According to one example, the grouping chamber forms a cage.

[0048] According to one example, the cage is parallelepiped in shape and has open and / or closed surfaces.

[0049] According to one example, the first actuator configured to translate the ramp along the grouping direction is a linear actuator. This first actuator thus enables the formation of a bale bundle and at least partially compacts the bale bundle.

[0050] According to one example, the first actuator is a cylinder, which can be hydraulic, electric, or pneumatic. The first actuator thus enables translation along a single axis.

[0051] According to one example, the binder is configured to move forward while being entirely supported by a tractor. The binder may then not include a road chassis, axle, or wheels; the binder is thus more compact and lighter, and its entire weight can therefore be borne by a tractor. The absence of a road chassis also reduces the binder's cost.

[0052] According to one example, the grouper is configured so as to move forward while being pulled by a tractor.

[0053] In one example, the grouper includes additional wheels. When present, these wheels support the grouper and allow it to move forward under the traction of a tractor in its main direction of travel. Traction can be used by tractors not powerful enough to lift the grouper, which weighs approximately 1500 kg.

[0054] According to an alternative example, the grouper is motorized so that it moves forward while rolling. This allows the grouper to be independent and not dependent on a tractor.

[0055] According to one example, the bundling unit has a maximum dimension, referred to as the transverse dimension, measured perpendicular to the main direction of travel, of substantially less than or equal to 3.5 m, preferably less than or equal to 3 m, preferably less than or equal to 2.95 m. The bundling unit is thus compact in its transverse dimension. Furthermore, this dimension allows it to remain below the threshold of road traffic regulations.

[0056] According to one example, the receiving surface is fixed to the ramp when the second actuator is actuation to selectively switch from the first to the second position. Thus, this allows a single tilting movement to be performed for both elements simultaneously.

[0057] According to one example, the ramp slides relative to the receiving surface when the first actuator is actuation. The articulation of the elements with each other after tilting allows the ramp to translate alone and thus allows the receiving surface to become an integral part of the floor of the grouping chamber.

[0058] According to one example, the grouper is configured so that during translation, the at least two balls are moved in the form of a stack of balls. Thus, the height of a bundle is limited to at least two balls.

[0059] According to one example, the bale bundle is configured to have a height greater than or equal to 2*Hb, preferably equal to 2*Hb. The chamber height is thus compact along its vertical dimension. This allows for a limited grouping chamber height. Depending on the height Hb of the bales, for example, for a height Hb less than 46 cm, at least three bales can form the height of the bundle.

[0060] According to one example, each ball in the plurality of balls is parallelepiped with their largest dimension corresponding to the longitudinal direction.

[0061] According to one example, the first actuator is configured to move the ramp a distance greater than or equal to X times the transverse dimension Lb of a bale, the transverse dimension being parallel to the grouping direction, preferably X > 1 * Lb and preferably X > 1.2 * Lb. This allows the bale stack to no longer be in contact with the receiving surface. Furthermore, it allows the bale bundle to be compacted towards the bottom of the grouping chamber.

[0062] According to one example, the receiving surface has a transverse dimension less than or equal to the transverse dimension Lb of a ball, preferably equal to the transverse dimension Lb of a ball. This allows the floor of the grouping chamber to have a smaller width and therefore be more compact.

[0063] According to one example, the grouping chamber is configured so as to have a transverse dimension Lc equal to N*Lb with N being the number of balls positioned side by side, preferably N being greater than or equal to 5, preferably N being equal to 5. This thus allows to have at least five stacks of balls positioned laterally to each other.

[0064] According to one example, the exit zone comprises an exit mechanism and a retention system comprising a retention surface, the retention system being configured to retain at least one ball in the exit zone, the retention system being mounted to rotate movably about a horizontal axis, called the pivot axis, between: - a first position in which the retention surface keeps the ball in the exit zone, - a second position in which the retention surface moves away from the first position so that each ball slides down the ramp by gravity from the exit area of ​​the pickup device until it reaches the receiving surface.

[0065] The retention system thus makes it possible to retain the balls in the exit zone while the transit device is in its first position.

[0066] According to one example, the rotation of the retention system is achieved by a third mechanical actuator, preferably a third linear actuator, preferably a cylinder. The third mechanical actuator thus enables rotational movement along a single axis.

[0067] According to one example, the release mechanism is configured so that, in the absence of the receiving surface, the ball tilts, under the effect of gravity, around an axis parallel to its longitudinal axis. Thus, in the second position of the retention system, the receiving surface prevents or limits the ball's tilting.

[0068] According to one example, the retention surface is shaped to bear against a substantially vertical face of the ball when the ball is in the exit zone. The ball is thus retained in the exit zone.

[0069] According to one example, the grouping chamber is configured to produce a bundle of at least 8 bales, preferably a bundle of at least 10 bales. The grouping chamber thus allows for a satisfactory yield while minimizing its size.

[0070] According to one example, the grouping chamber includes a clamping device configured to exert a vertical force on the bale bundle, the force being oriented so as to press the bundle against the floor. This makes it possible to press the stack of bales and subsequently the bundle so that during translation along the axis The grouping prevents the stack from falling. Furthermore, it also allows for vertical compression of the packet, resulting in a more compact package.

[0071] According to one example, the grouping chamber includes a pusher system configured to exert pressure on the bale bundle so as to allow the bale bundle to be ejected from the grouping chamber through the outlet opening in an ejection direction, the ejection direction preferably being parallel to the main direction of travel. This allows for easy ejection in the same direction as entry into the grouper and keeps the bales in their longitudinal dimension.

[0072] According to one example, the outlet opening includes a binding system configured to bind the bales in the bundle of bales. This allows the bundle to be packaged so that the bales are securely fastened to each other.

[0073] According to one example, the binding system includes a strapping system. The strapping system comprises a frame configured to surround a bundle of bales, and preferably configured to surround the exit opening. The strapping system is configured to position a tie inside the frame and, when the bundle is inside the frame, triggers the ejection of the tie from the frame and the winding and tightening of the tie around the bundle. This allows for strapping around the perimeter of the bundle.

[0074] According to one example, the strapping system is configured so as to apply ties to the package perpendicular to the ejection direction.

[0075] According to one example, the strapping system is configured so as to apply at least one link, to tighten it and to close it at a splice on the package, the link being configured to be positioned at a predetermined position N.

[0076] According to one example, the transit device is preferably configured so that in the second position the ramp rises towards the vertical, preferably being substantially vertical, and the receiving surface is positioned so as to form part of the floor, substantially horizontal and substantially coplanar with the floor. The plane in which the chamber floor extends may be a few millimeters, or even a few centimeters, preferably less than 5 centimeters, below the receiving surface when the latter is in the second position.

[0077] In the following description, the term "on" does not necessarily mean "directly on." Thus, when it is stated that a part or component A is supported "on" a part or component B, this does not mean that parts or components A and B are necessarily in direct contact with each other. These parts or components A and B may be either in direct contact or supported by one or more other parts. The same applies to other expressions such as, for example, the expression "A acts on B" which can mean "A acts directly on B" or "A acts on B through one or more other parts".

[0078] In the detailed description that follows, terms such as "horizontal," "vertical," "longitudinal," "transverse," "upper," "lower," "top," "bottom," "front," "rear," "inside," and "outside" may be used. These terms should be interpreted relatively in relation to the normal position of the grouper and its direction of travel. For example, the longitudinal dimension of a ball corresponds to the longest dimension of a ball extending along the principal direction of travel. Similarly, the longitudinal dimension of the grouper is understood as the dimension parallel to the principal direction of travel.

[0079] In this patent application, when two parts are described as distinct, this means that these parts are separate. They are: - positioned at a distance from each other, and / or - mobile relative to each other and / or - joined together by being fixed by added elements, this fixing being removable or not.

[0080] A single-piece unit cannot therefore be made up of two separate parts.

[0081] In this patent application, the term "fixed" used to describe the connection between two parts means that the two parts are linked / fixed to each other with respect to all degrees of freedom, unless explicitly specified otherwise. For example, if it is stated that two parts are fixed in translation along a direction X, this means that the parts can be movable relative to each other except along the direction X. In other words, if one part is moved along the direction X, the other part moves in the same direction.

[0082] The terms "approximately", "about", "on the order of" mean "to within 20%, preferably to within 10%" or, when referring to an angular orientation, "to within 10°". Thus, a direction substantially normal to a plane means a direction having an angle of 90+10° with respect to the plane.

[0083] We will also use a reference frame whose longitudinal or front / back direction corresponds to the x axis, the transverse or right / left direction corresponds to the z axis and the vertical or up / down direction corresponds to the y axis.

[0084] In the present patent application, the term mobile corresponds to a rotational movement or a translational movement or a combination of movements, for example the combination of a rotation and a translation.

[0085] In the detailed description that follows, the term "satisfactory" may be used to refer to a yield or the size of a package, a yield or a size of A satisfactory package is understood to mean one that allows the harvesting of at least 250 bales per hour, preferably 320 bales per hour.

[0086] In the detailed description that follows, the term "small" may be used to refer to a farm. A small farm is understood to be one producing less than 40,000 bales per year.

[0087] The present invention relates to a bale bundling device 1 for bales 2a, in particular bales of hay or straw. A bale bundling device 1 will now be described with reference to Figures 1 to 7.

[0088] A bale grouper 1 is generally configured to move forward along a main direction of travel A. The bale grouper 1 can move forward using a tractor 3 or under its own power. The bale grouper 1 is usually configured to pick up bales 2a present on the ground and group them to form a bundle 2. The bundle 2 is then ejected from the bale grouper 1 onto the ground and collected by another agricultural machine.

[0089] Thus, according to one example, the grouper 1 includes a collection device 20 is configured to pick up bales 2a. The bales 2a have a longitudinal direction lb and are arranged on the ground. Preferably, this longitudinal direction lb is parallel to the main direction of travel A of the grouper 1. The pickup device 20 can also convey the bales 2a along a conveying direction contained in a vertical plane and parallel to the main direction of travel A to an exit zone 12. In one example, the conveying is carried out by maintaining the longitudinal direction lb of the bales 2a parallel to a vertical plane including the main direction of travel A.

[0090] According to one example, the grouper 1 includes a grouping chamber 11 for bales 2a allowing to receive the bales 2a conveyed by the collection device 20.

[0091] The grouping chamber 11 includes a floor 111. In one example, the floor 111 can support several bales 2a while maintaining the longitudinal direction 1b of the bales 2a parallel to a vertical plane comprising the principal direction of travel A. Preferably, the bales 2a are arranged side by side along a grouping direction Z perpendicular to said principal direction of travel A. The grouping of bales 2a can thus form at least part of the bundle 2 of bales 2a. In one example, the floor 111 is at least partially fixed.

[0092] The grouping chamber 11 also includes a transit device 120. The transit device 120 can allow each ball 2a to be moved from the exit zone 12 to the grouping chamber 11, more specifically to the 1 lb inlet of the grouping chamber 11. According to one example, the movement of each ball 2a from the exit zone 12 is carried out by gravity.

[0093] The transit device 120 comprises a ramp 120b and a receiving surface 120a. In one example, the transit device 120 is mounted to rotate about a horizontal axis, referred to as the tilting axis PI, allowing the transit device 120 to vary between two positions. In one example, the transit device 120 can thus be in a first position in which the ramp 120b is inclined relative to the vertical and the receiving surface 120a is inclined relative to the horizontal. Thus, each ball 2a can slide down the ramp 120b by gravity from the exit zone 12 of the pickup device 20 until it reaches the receiving surface 120a. In another example, the transit device 120 can be in a second position in which the ramp 120b straightens towards the vertical, preferably being substantially vertical.The receiving surface 120a can thus be positioned to form part of the floor 111.

[0094] According to one example, the grouper 1 includes a first actuator 122 for translating the ramp 120b along the grouping direction Z, from the second position. The ramp 120b can then exert a force on the balls 2a tending to move the balls 2a inside the grouping chamber 11 from the receiving surface 120a towards a bottom of the chamber 11 until a bundle is formed.

[0095] The grouping chamber 11 includes an exit opening 112. According to one example, the exit opening 112 allows the packet 2 formed from the grouper 1 to exit.

[0096] According to one example, the grouper 1 is used in the grouping of parallelepiped balls 2a illustrated in [Fig. 7]. The balls 2a can thus have a longitudinal dimension lba as well as at least one transverse dimension Lb. The longitudinal dimension lb corresponds to the largest dimension of a ball 2a. The balls 2a can also have a vertical dimension or height Hb. The transverse and vertical dimensions of a ball 2a are understood according to the positioning of a ball 2a in the grouping chamber 11. The ball 2a can, for example, have a longitudinal dimension lb less than or equal to 110 cm (centimeters), preferably less than or equal to 100 cm, preferably less than or equal to 80 cm, preferably equal to 75 cm. The two transverse dimensions Lb and vertical dimensions Hb can be substantially the same. The ball 2a can, for example, have a transverse dimension Lb equal to 36 cm.Ball 2a can, for example, have a vertical dimension Hb equal to 46 cm. A group of at least two balls 2a can form a stack 2b, illustrated in [Fig. 5D], of balls 2a. A group of at least four balls 2a can form a bundle 2 of balls 2a, illustrated in [Fig. 5G].

[0097] In the following description, other elements and characteristics of the grouper 1 will be described by considering a set 4 composed of a grouper 1 and the displacement of a plurality of balls 2a.

[0098] The grouper 1 includes the pickup device 20. According to an example, the pickup device 20 extends substantially along the longitudinal direction x. The pickup device 20 extends in a vertical plane parallel to the main direction of advancement A.

[0099] The pickup device 20 includes an inlet orifice 21. According to one example, the inlet orifice 21 allows the introduction of the balls 2a into the pickup device 20. The inlet orifice 21 can be at a distance of a few centimeters from the ground in order to come into contact with the balls 2a present on the ground.

[0100] The inlet orifice 21 may have guides for directing the ball 2a into the pickup device 20. The guides are positioned so that the ball 2a enters the pickup device 20 through a face comprising its transverse dimension Lb and its vertical dimension Hb. Thus, the ball 2a can enter with its longitudinal dimension lb parallel to the main direction of advancement A.

[0101] The collection device 20 also includes a transport mechanism 23. The transport mechanism 23 allows, for example, the bale 2a to be conveyed from the inlet opening 21 to the outlet area 12. Similarly, the transport mechanism 23 allows, for example, the bale 2a to be conveyed along a direction of travel contained in a vertical plane parallel to the main direction of travel A. The bale 2a can then, by means of the translational movement of the transport mechanism 23, ascend from the ground to the outlet area 12 located at a height H, preferably H being greater than or equal to 1.3 m. Thus, the transport mechanism 23 may have a slope relative to the ground. The transport mechanism 23 may preferably be a chain having hooks for gripping the bales 2a, or preferably be a rotating belt.The transport mechanism 23 is preferably positioned centrally with respect to the inlet orifice 21 in order to allow stable support of the ball 2a on the transport mechanism 23.

[0102] The height H can correspond to the maximum positioning height of a bale 2a. Thus, the bale bund 1 will have a vertical dimension approximately greater than or equal to H + Lb. This dimension allows the bale bund 1 to have a compact vertical dimension, enabling it to pass under bridges during road transport. Furthermore, the vertical dimension of the bale bund 1 is limited so as, for example, to allow its use on farms with a slope, thereby reducing or even eliminating the risk of tipping.

[0103] The collection device 20 also includes side walls 22. The side walls 22 are preferably positioned on either side of the mechanism transport mechanism 23. Advantageously, the side walls 22 are positioned to correspond substantially to the height Hb of a bale 2a. The side walls 22 thus allow the bales 2a to be held on the transport mechanism 23 along the longitudinal direction lb of the bales 2a. Preferably, the side walls 22 are positioned symmetrically on either side of the transport mechanism 23. Preferably, the side walls 22 are spaced approximately along the z-axis by a dimension less than or equal to 55 cm, preferably less than or equal to 53 cm. Preferably, the side walls 22 are spaced approximately along the z-axis by a dimension equal to 53 cm for bales 2a having a height Hb equal to 46 cm.

[0104] The ball 2a is thus transported from the ground to the exit zone 12.

[0105] According to one example, the output zone 12 is considered to be a storage zone of the ball 2a before its introduction into grouping chamber 11.

[0106] The exit zone 12 includes an exit mechanism 123. In one example, the exit mechanism 123 allows the ball 2a to be conveyed into the exit zone 12 along its entire longitudinal dimension lb. In another example, the exit mechanism 123 also allows the ball 2a to be supported, at least partially, when the ball 2a is positioned in the exit zone 12. The ball 2a can then move from a position inclined relative to the ground to a position substantially parallel to the ground.

[0107] In one example, the output mechanism 123 is positioned offset relative to the transport mechanism 23. Similarly, in another example, the output mechanism 123 is positioned eccentrically relative to the height Hb of the ball 2a. The ball 2a may thus be at least partially supported by the output mechanism 123. The supported portion may be smaller than the unsupported portion. The ball 2a may therefore be unstableally positioned on the output mechanism 123.

[0108] The ball 2a can thus fall under the effect of its weight and gravity. The ball 2a can be retained in the exit zone 12 by means of a retention system 124 positioned opposite the exit mechanism 123.

[0109] The retention system 124, according to one example, thus allows the ball 2a to be retained by contact with a face of the bullet 2a, along its longitudinal dimension lb. The bullet 2a is then at least partially in contact with the retention system 124 when the bullet 2a arrives in the exit zone 12. Preferably, the bullet 2a is thus retained in the exit zone 12 before its introduction into the grouping chamber 11.

[0110] The retention system 124 comprises a retention surface 124a. According to one example, the retention surface 124a is mounted to rotate about a horizontal axis, called the pivot point P2, allowing the retention system 124 to vary between two positions. Similarly, the retention surface 124a can vary between two positions, an open position and a closed position.

[0111] The retention system 124 also includes a third mechanical actuator 124b. The third mechanical actuator 124b allows the retention surface 124a to move from its closed position to its open position and vice versa.

[0112] The two positions will now be described in terms of figures 5A and 5B.

[0113] According to one example, when a ball 2a arrives in the exit zone 12, the retention system 124, preferably the retention surface 124a, is in the closed position. The retention surface 124a is therefore preferably positioned vertically with respect to the ground. The retention surface 124a can then be at least partially in contact with the ball 2a. The ball 2a can thus be held in the exit zone 12 (see [Fig. 5A]).

[0114] According to one example, the retention system 124 is deactivated, and the third actuator 124b, preferably a linear mechanical actuator, is activated (see [Fig. 5B]). The activation of the third linear actuator 124b can then cause the retention surface 124a to move from a closed position to an open position. The retention surface 124a can thus pivot to a position inclined with respect to the vertical along the pivot axis P2 and allow the ball 2a to fall by gravity into the grouping chamber 11.

[0115] According to one example, the bullet 2a falls by gravity onto the transit device 120 positioned according to its initial position. Preferably, the transit device 120 can be positioned at the inlet 11b of the grouping chamber 11.

[0116] According to one example, the transit device 120 can support at least one ball 2a. This at least one ball 2a has, according to one example, at least two surfaces in contact with the transit device 120. Preferably, one surface of the ball 2a is in contact with the receiving surface 120a. Preferably, another surface of the ball 2a is in contact with the ramp 120b (see [Fig. 5B]). Preferably, the transit device 120 can support at least two balls 2a (see [Fig. 5C]).

[0117] According to one example, the ramp 120b is inclined with respect to the vertical at an angle substantially greater than or equal to 20°, preferably greater than or equal to 40°, preferably equal to 48°. This inclination allows the ball 2a to slide down the ramp by gravity under the effect of its weight.

[0118] According to one example, the receiving surface 120a forms an angle preferably of approximately 90° with respect to the plane in which the ramp 120b is included. Similarly, the receiving surface 120a extends perpendicularly to a plane in which the ramp 120b extends mainly.

[0119] According to one example, the transit device 120 moves from the first position to the second position after at least two balls 2a are positioned on the transit device 120.

[0120] According to one example, the ramp 120b and the receiving surface 120a are two separate parts but joined together when moving from the first position to the second position.

[0121] As illustrated in Figures 6A, 6B, and 6C, the transit device 120 comprises a support structure 120c carrying the receiving surface 120a and the ramp 120b. The support structure 120c is, for example, frame-shaped. The support structure 120c is rotatably mounted on the grouper about the tilting axis PI in order to selectively switch from the first position to the second position. The tilting axis PI is parallel to the direction of travel A of the grouper.

[0122] According to one example, the transition from the first position to the second position is achieved by the second mechanical actuator 121. Preferably, the second mechanical actuator 121 is a linear actuator, such as a hydraulic, electric, or pneumatic cylinder. The second mechanical actuator 121 can be connected at one end to the support structure 120c. The second mechanical actuator 121 can be connected at the other end to a post 10 of the output zone 12 of the grouper 1. As illustrated in [Fig. 5B] and [Fig. 5D], the deployment of the second actuator 121 allows the transit device 120 to rotate about the tilting axis PL.

[0123] According to one example, the transit device 120 is preferably configured so that in the second position the ramp 120b straightens towards the vertical, preferably being substantially vertical, and the receiving surface 120a is positioned so as to form a part of the floor 111, substantially horizontal and substantially coplanar with the floor 111. The plane in which the floor 111 of the grouping chamber 11 extends can be a few millimeters, or even a few centimeters, preferably less than 5 centimeters, below the receiving surface 120a, when the latter is in the second position.

[0124] Thus, the receiving surface 120a can be positioned horizontally relative to the ground, substantially on the same plane as the floor 111. Similarly, the ramp 120b is positioned vertically. According to one example, the two balls 2a are then stacked to form a pile 2b along the vertical direction on the receiving surface 120a.

[0125] According to one example, the receiving surface 120a is integral with the support structure 120c. It is, for example, fixed to the support structure 120c. The ramp 120b is for its part, it is mounted sliding on the support structure 120c. Thus, when the support structure 120c tilts around the tilting axis PI, it causes the ramp 120b to rotate in order to selectively move from the first position to the second position.

[0126] Furthermore, a first actuator 122 enables the translational movement of the ramp 120b relative to the support structure 120c and the receiving surface 120a. Similarly, the deployment of the first actuator 122, visible in [Fig. 6C] and [Fig. 5E], enables the translational movement of the ramp 120b along the grouping direction Z relative to the support structure 120c and the receiving surface 120a. This first actuator 122 is activated when the transit device 120 is in the second position. Thus, the receiving surface 120a forms part of the floor 111, and the translation of the ramp 120b causes the ball 2a or the stack 2b of balls 2a to move into the grouping chamber 11. Preferably, the length of this translation stroke allows the balls 2a to pass beyond the receiving surface 120a. The balls can thus reach the fixed part of the floor 111.

[0127] According to one example, the receiving surface 120a is locked in position by the non-powering of the second mechanical actuator 121. The non-powering of the second mechanical actuator 121 can ensure that the receiving surface 120a does not move during the movement of the ramp 120b.

[0128] According to one example, the transit device comprises at least one and preferably two cross systems 120d illustrated in Figures 6A and 6B. The cross system 120d allows the translational movement of the ramp 120b to be guided relative to the receiving surface 120a.

[0129] According to one example, the first mechanical actuator 122 can then be activated. The first actuator 122 allows the ramp 120b to be moved, or translated, from the second position to a third position illustrated in [Fig. 5E] along the grouping direction Z. Similarly, the ramp 120b slides relative to the receiving surface 120a. Analogously, the ramp 120b can be translated relative to the receiving surface 120a by the deployment of the cross system 120d. The cross system 120d comprises uprights positioned to form a cross. The two uprights are rotationally hinged at a central portion of each upright. Each upright is connected at one end to the support structure 120c and at the other end to the ramp 120b. Each upright is connected, by one of its ends, to one of the support structure 120c and to the ramp 120b, by an annular linear connection.Each upright is connected, at its second end, to the other end of the support structure 120c and to the ramp 120b, by a pivot joint. The annular pivots and linear joints thus allow for... The 120d cross system is deployed upon actuation of the first actuator 122. The 120d cross system guides the 120b ramp in translation when the first actuator 122 is actuation. This system is particularly robust, precise, and cost-effective. Other guidance systems are possible. A solution based on the use of slides or multiple cylinders would not offer the same budgetary advantages.

[0130] In the illustrated example, the transit device comprises two cross systems 120d, preferably superimposed vertically. The first actuator 122 is disposed between the two cross systems 120d.

[0131] Thus, the previously formed stack 2b of bullets 2a can be moved along the grouping direction Z. For example, the stack 2b of bullets 2a is moved by a distance substantially equal to the transverse dimension Lb of the bullets. More precisely, the ramp 120b can move a distance greater than or equal to X times the transverse dimension Lb of a bullet 2a, the transverse dimension being parallel to the grouping direction, preferably X > 1 * Lb and preferably X > 1.2 * Lb. The distance of displacement allows the translation of a complete stack 2b from the receiving surface 120a towards the bottom 1 of the grouping chamber 11.

[0132] According to one example, the first actuator 122 is a linear actuator such as a cylinder, preferably hydraulic, electric, or pneumatic. The first actuator 122 thus allows movement in a single direction without causing rotation of the balls 2a.

[0133] According to one example, during the deployment of the first actuator 122, the stack 2b of balls 2a is compressed vertically by a clamping device 114 located in the grouping chamber 11. The clamping device 114 may be a plate or a grid. Preferably, the clamping device 114 has at least one part in contact with each stack 2b of balls 2a present in the grouping chamber 11.

[0134] According to one example, after the transit device 120 has moved from a second position to a third position, the transit device 120 returns to its first position to receive new balls 2a.

[0135] According to an example, each new stack 2b created will push the previous stack 2b when the first actuator 122 is activated towards the bottom 1 of the grouping chamber 11.

[0136] According to one example, the integration of the balls 2a into the grouping chamber 11 is repeated up to at least a 5th stack 2b in order to form a packet 2. Preferably, the at least 5th stack 2b integrated into the grouping chamber 11 is at least partially in contact with the receiving surface 120a, which can be considered the floor 111 (see [Fig. 5F]). Preferably, the at least 5th stack 2b integrated into the chamber The grouping chamber 11 is at least partially in contact with both the receiving surface 120a and the floor 111. The receiving surface 120a may have a transverse dimension less than or equal to the transverse dimension Lb of a ball 2a, preferably equal to the transverse dimension Lb of a ball 2a. This allows for a reduced grouping chamber dimension 11. Indeed, the receiving surface 120a can thus be part of the floor 111, allowing the insertion of an additional stack 2b within a minimal chamber dimension 11.

[0137] The grouping chamber 11 can thus contain up to at least 5 stacks 2b of at least two balls 2a. The grouping chamber 11 can then have a transverse dimension Lc preferably equal to N*Lb, where N is the number of stacks 2b of balls 2a. Preferably, N is equal to or greater than 5. Similarly, the grouping chamber 11 can then have a transverse dimension Lc preferably equal to N*Lb, where N is the number of balls 2a positioned side by side on the floor 111 of the grouping chamber 11. Thus, the grouping chamber 11 makes it possible to form a bundle 2 of balls 2a of at least 8 balls, preferably of at least 10 balls. As an example, the grouping chamber 11 can make it possible to form a bundle 2 of balls 2a of preferably at least 12 balls, preferably of at least 14 balls.The grouping chamber 11 thus allows for sufficient yield while reducing the size of the grouping chamber 11. Thus, the number of 2a bales in the grouping chamber 11 can depend on the dimensions of the 2a bales and / or the dimensions of the grouping chamber 11.

[0138] The grouping chamber 11 includes a thrusting system 14 (visible in [Fig. 4]). The thrusting system 14 allows the packet 2 to be ejected from the grouping chamber 11. The thrusting system 14 can allow the packet 2 to be ejected in an ejection direction E substantially parallel and opposite to the main direction of advancement A.

[0139] According to one example, the thrusting system 14 includes an ejection plate 141 positioned so as to allow the ejection of the bundle 2 from the rear of the grouper 1 along the main direction of advancement A. The balls 2a can thus exit the grouper 1 while keeping their longitudinal dimension lb parallel to the main direction of advancement A.

[0140] According to one example, the ejection plate 141 is a plate or grid being at least partially in contact with all the stacks 2b of balls 2a of the pack 2. Similarly, the ejection plate 141 is at least partially in contact with all the balls 2a of the pack 2. Thus, this allows each of the balls 2a of the pack 2 to exit through the exit opening 112 at the same speed and in a homogeneous manner.

[0141] According to one example, the outlet opening 112 has the same transverse and vertical dimensions as the grouping chamber 11.

[0142] The discharge opening 112 includes a tying system configured to tie the bales of the same bundle during the ejection of the bundle from the grouper. Preferably, the tying system includes a strapping system 13. It is configured to deploy and close a tie 130 around the bundle 2. This strapping system 13 includes a rectangular frame 13a, framing the discharge opening 112. Similarly, the rectangular frame 13a surrounds the discharge opening 112. The frame 13a can thus be used to create a strap around the bundle 2. Similarly, the rectangular frame 13a surrounds the bundle 2 of bales 2a. In one example, a portion of the frame 13a can be integrated into the floor 111 of the grouping chamber 11.

[0143] According to one example, the rectangular frame 13a of the strapping system 13 straps the package 2. The frame 13a may include a link positioning device 130. The link positioning device may be configured to push the link 130 along the frame 13a. According to one example, the frame 13a is hollow, thus allowing the link 130 to be pushed into the frame 13a. The link positioning device 130 may be configured to position at least one link, preferably a plurality of links.

[0144] By way of example, the frame 13a may also include a strapping head. The strapping head is configured to tighten and close at least one link around the package 2. The strapping head may be configured to apply a link 130 to the package 2. The frame 13a includes at least one link 130, preferably a plurality of links 130. In the following, it is considered, for the sake of non-limiting accuracy, that the frame 13a, and by extension the strapping system 13, includes several links 130.

[0145] According to one example, when the ties 130 form a closed or substantially closed contour inside the frame 13a, the ties 130 are retracted. This retraction causes the ties 130 to extend out of the frame 13a and come into contact with the package 2. This retraction is ensured, for example, by the strapping head. The strapping system 13 thus makes it possible to bind the package 2. The strapping can be achieved using the ties 130 illustrated in [Fig. 5G] or by a plastic film not shown. According to an example, the links 130 are positioned perpendicular to the ejection direction E and to the main direction of advancement A. That is to say, the closed contour they form lies in a plane perpendicular to the advancement of the grouper 1. The closed contour they form lies in a plane perpendicular to the ejection direction E of the bundle out of the grouping chamber 11. The links 130 can be made of plastic material.The 130 links can also be made of metal.

[0146] According to one example, the strapping system 13 can be configured to tension the ties 130. Thus, the bales 2a of the bundle 2 can be tightened together. The tension applied by the strapping system 13 can be substantially greater than or equal to 500 N (Newtons), preferably greater than or equal to 1000 N, preferably greater than or equal to 2000 N, preferably greater than or equal to 3000 N, preferably greater than or equal to 4000 N, preferably equal to 5000 N.

[0147] According to one example, the links 130 are closed at a splice on bundle 2. The links 130 can be closed after one turn of bundle 2. Thus, the links 130 are closed to hold bundle 2 together. The splice of the links 130 can be made by welding, preferably friction welding, or by heat application or ultrasonic welding. The splice of the links 130 can also be made by clinching.

[0148] According to one example, the straps 130 can be positioned at predetermined regular intervals N. Thus, the pushing system 14 can push the package 2 to a first position of a first strap 130. The strapping system 13 can apply a first strap 130 to the package 2. The first strap 130 can be tensioned and then welded by the strapping head. The first strap 130 can then be released and come into contact with the package 2. Then, the pushing system 14 can continue pushing the package 2 to a second position of a second strap 130. The strapping system 13 can apply a second strap 130 to the package 2. The second strap 130 can be tensioned and then welded by the strapping head. The second strap 130 can then be released and come into contact with the package 2. A number N of straps 130 can be applied. The pushing system 14 can then push the strapped package 2 until the complete exit of package 2 from the grouping chamber 11.

[0149] This binding system has the particular advantage of being very cost-effective and compact compared to known systems. It can be used on a grouper independently of the transit device 120 described above.

[0150] The exit opening 112 also includes an exit platform 112a. The exit platform 112a acts as an extension of the floor 111 outside the grouping cage 11. The exit platform 112a allows the package 2 to be held parallel to the floor 111 during the ejection of the package 2 and its packaging by the strapping system 13. The package 2 can then be evacuated from the exit platform 112a by gravity to land on the ground.

[0151] According to one example, the set of elements detailed above are set in motion by means of a hydraulic system 30. The hydraulic system may include a pump 31, a reservoir 32 and a radiator 33 visible in [Fig.1].

[0152] According to one example, the elements detailed above are activated sequentially by means of detectors not shown.

[0153] The grouper 1 can thus have a transverse dimension perpendicular to the main direction of advancement A substantially less than or equal to 3.5 m of Preferably less than or equal to 3 m, preferably less than or equal to 2.95 m. Grouper 1 is thus compact in its transverse dimension and can move easily on the road.

[0154] According to one example, the grouper 1 is compact and lightweight, so the grouper 1 can move forward along the main direction of travel A while being supported by lifting arms 3a illustrated in [Fig. 1]. The lifting arms 3a can connect the grouper 1 to a tractor 3. More precisely, the lifting arms 3a can connect the rear of the tractor 3 with the front of the grouper 1. More precisely, the lifting arms 3a can connect the rear of the tractor 3 with the front of the grouping chamber 11 of the grouper 1. The grouper 1 can thus be fully supported by the tractor 3. Therefore, the grouper 1 does not touch the ground. In addition to being compact in its transverse dimension, the grouper 1 can thus be carried. Therefore, no type approval is required for its transport on the road. Indeed, a user can drive without approval or special authorization on the road with a mounted tool less than 3.5 m wide in France and less than 3 m wide in Europe.

[0155] According to one example, the grouper 1 can move forward along the main direction of travel A while being pulled by the tractor 3. Preferably, the grouper 1 includes additional wheels 70. These additional wheels 70 can be non-drive wheels with an offset free axle for automatic pivoting. Thus, these additional wheels 70 cannot transmit power and can serve to guide and support the weight of the grouper 1. The additional wheels 70 can be mounted to rotate freely around a horizontal axis, this horizontal axis being itself mounted to rotate freely around a vertical axis on the grouper 1. They can be described as "free-rolling" wheels, as on supermarket trolleys, for example.

[0156] By way of example, when the grouper 1 moves forward along the main direction of travel A while being carried or pulled by a tractor 3 also moving along the main direction of travel A, the grouper 1 can be positioned along the main direction of travel A at least partially both behind and to one side of the tractor 3. Thus, the inlet port 21 can be positioned substantially parallel to a tractor 3. Advantageously, the inlet port 21 can be positioned along the transverse direction z on the same plane as the tractor 3. Thus, the grouper 1 is compact along its longitudinal dimension x when it moves along its main direction of travel A thanks to a tractor 3.

[0157] According to one example, the grouper 1 can advance along the main direction of travel A while being motorized. Thus, preferably, the grouper 1 comprises additional wheels 70 and a motor not shown in the figures. In the case of a motorized grouper 1, the additional wheels 70 can typically be steering wheels.

[0158] NUMERICAL REFERENCES 1: grouper 10: amount 11: Grouping chamber 1 la: back of room 11b: Room entrance 111: floor 112: Exit opening 112a: Exit platform 114: plate-like device Lc: grouping chamber width 120: transit device 120a: Reception area 120b: ramp 120c: support structure 120d: cross system PI: tilting axis 122: a first mechanical actuator 121: a second mechanical actuator 12: Exit zone 123: Exit mechanism 124: Retention system 124a: retention surface 124b: a third mechanical actuator P2: pivot axis of the retention plate 13: Strapping system 13a: frame 130: link 14: Pushing System 141: Ejection plate 20: Collection device 21: Inlet port 22: Side walls 23: transport mechanism 30: Hydraulic system 31: Hydraulic pump 32: Hydraulic reservoir 33: oil radiator 70: Additional wheel A: Main direction of advancement; Z: Grouping direction E: ejection direction 2: pack of balls 2a: ball N: number of balls Lb: cross-sectional dimension of a bale; lb: longitudinal dimension of a bale; 2b: stack of bales; 3: tractor 3a: Lifting arm 4: together

Claims

1. Demands Bale grouper (1) (2a), in particular of hay or straw, configured to advance along a main direction of advance (A) characterized in that it comprises: - a collection device (20) configured for: • pick up balls (2a) having a longitudinal direction (lb) and arranged on a floor and, • convey the bales (2a) along a conveying direction contained in a vertical plane and parallel to the main direction of travel (A) to an exit zone (12) and maintaining the longitudinal direction (lb) of the bales (2a) parallel to a vertical plane (x, y) including the main direction of travel (A), - a bale grouping chamber (11) for the bales (2a), configured to receive the bales (2a) conveyed by the pickup device (20) and comprising a floor (111), the floor (111) being configured to support several bales (2a) while maintaining the longitudinal direction (lb) of the bales (2a) parallel to a vertical plane (x, y) comprising the main direction of travel (A), preferably the bales (2a) being arranged side by side along a grouping direction (Z) so as to form at least part of a bundle (2) of bales (2a), the grouping direction (Z) being perpendicular to said main direction of travel (A), the chamber having an exit opening (112) shaped to allow the bundle (2) to be evacuated from the grouping chamber (11) for evacuation by gravity onto the ground, the grouping chamber (11) includes a transit device (120) shaped to move by gravity each ball (2a) from the exit zone (12) of the pickup device (20) to the grouping chamber (11), the transit device (120) comprising a ramp (120b) and a receiving surface (120a), the transit device (120) being mounted to rotate about a horizontal axis, called the tilting axis (PI), between: - a first position in which the ramp (120b) is inclined with respect to the vertical and the receiving surface (120a) is inclined with respect to the horizontal, so that each ball (2a) slides down the ramp (120b) by gravity from the exit zone (12) of the pickup device (20) until it reaches the stop on the receiving surface (120a), - a second position in which the ramp (120b) straightens towards the vertical, preferably being substantially vertical, and the receiving surface (120a) is positioned so as to form part of the floor (HD), the grouper (1) comprising a first actuator (122) configured to translate the ramp (120b) along the grouping direction (Z), from the second position,so as to exert on the balls (2a) an effort tending to move the balls (2a) inside the grouping chamber (11) from the receiving surface (120a) towards a bottom (1la) of the grouping chamber (11).

2. Bale grouper (1) (2a) according to the preceding claim, wherein, in the first position, the ramp (120b) is inclined with respect to the vertical at an angle with the vertical substantially greater than or equal to 20°, preferably greater than or equal to 40°, preferably equal to 48°.

3. Grouper (1) of balls (2a) according to any one of the preceding claims in which, the receiving surface (120a) extends substantially perpendicularly to a plane in which the ramp (120b) extends principally.

4. Bale grouper (1) (2a) according to any one of the preceding claims wherein, the tilting axis (PI) is parallel to the main direction of advancement (A).

5. Bale grouper (1) (2a) according to any one of the preceding claims in which, a second actuator (121) is configured to move the transit device (120) from the first position to the second position along the tilting axis (PI).

6. Bale grouper (1) of bales (2a) according to the preceding claim in which, the second actuator (121) is a linear actuator, preferably the second actuator (121) is a cylinder, for example hydraulic, electric or pneumatic.

7. Bullet grouper (1) (2a) according to any one of the preceding claims wherein, the grouping chamber (11) forms a cage.

8. Bale grouper (1) (2a) according to any one of the preceding claims wherein, the first actuator (122) configured to translate the ramp (120b) along the grouping direction (Z) is a linear actuator.

9. Bale grouper (1) of bales (2a) according to the preceding claim, wherein the first actuator (122) is a cylinder, the cylinder being able to be hydraulic, electric or pneumatic.

10. Bale grouper (1) (2a) according to any one of the preceding claims wherein the grouper (1) is configured to advance while being fully supported by a tractor (3).

11. Bale grouper (1) (2a) according to any one of claims 1 to 9 wherein the grouper (1) is configured to advance by being pulled by a tractor (3).

12. Bale grouper (1) (2a) according to any one of claims 1 to 9 wherein the grouper (1) is motorized so as to advance by rolling.

13. Bale grouper (1) (2a) according to the two preceding claims wherein the grouper (1) comprises additional wheels (70).

14. Bale grouper (1) (2a) according to any one of the preceding claims wherein, the grouper (1) has a maximum dimension, referred to as transverse, measured perpendicular to the main direction of advancement (A), substantially less than or equal to 3.5 m, preferably less than or equal to 3 m, preferably less than or equal to 2.95 m.

15. Grouper (1) of balls (2a) according to any one of the preceding claims wherein the receiving surface (120a) is integral with the ramp (120b) when the second actuator (121) is actuation to selectively move from the first to the second position.

16. Bale grouper (1) (2a) according to any one of the preceding claims, wherein the ramp (120b) slides relative to the receiving surface (120a) when the first actuator (122) is actuation.

17. Assembly (4) comprising a grouper (1) according to any one of the preceding claims and a plurality of bales (2a), in particular of hay or straw, the grouper (1) being configured so that the transit device (120) moves from the first position to the second position after at least two bales (2a) of the plurality are arranged on the ramp (120b) and in contact with each other, in the second position, one of the at least two bales (2a) being located on the other of the at least two bales (2a).

18. Assembly (4) according to the preceding claim in which, the grouper (1) is configured so that during translation, the at least two balls (2a) are moved in the form of a stack (2b) of balls (2a).

19. Assembly (4) according to any one of the two preceding claims wherein each ball (2a) of the plurality of balls (2a) is parallelepiped with their largest dimension corresponding to the longitudinal direction (lb).

20. Assembly (4), according to any one of the three preceding claims wherein the first actuator (122) is configured to move the ramp (120b) a distance greater than or equal to X times a transverse dimension (Lb) of a ball (2a), the transverse dimension being parallel to the grouping direction (Z), preferably X>1*Lb and preferably X>1.2*Lb.

21. Assembly (4) according to any one of claims 17 to 20 in which, the receiving surface (120a) has a transverse dimension less than or equal to the transverse dimension (Lb) of a ball (2a), preferably equal to the transverse dimension (Lb) of a ball (2a).

22. Assembly (4) according to any one of claims 17 to 21 wherein, the grouping chamber (11) is configured so as to have a transverse dimension (Lc) equal to N*Lb with N being the number of balls (2a) positioned side by side, preferably N being greater than or equal to 5, preferably N being equal to 5.

23. Assembly (4) according to any one of claims 17 to 22, wherein the exit zone (12) comprises an exit mechanism (123) and a retention system (124) comprising a surface of retention (124a), the retention system (124) being configured to retain at least one ball (2a) in the exit zone (12), the retention system (124) being mounted to rotate about a horizontal axis, called pivoting axis (P2), between: - a first position in which the retention surface (124a) holds the ball (2a) in the exit zone (12), - a second position in which the retention surface (124a) moves away from the first position so that each ball (2a) slides down the ramp (120b) by gravity from the exit zone (12) of the pickup device (20) until it comes to rest on the receiving surface (120a).

24. Assembly (4) according to the preceding claim, wherein the rotation of the retention system (124) is achieved by a third mechanical actuator (124b), preferably by a third linear actuator (124b), preferably the third linear actuator (124b) is a cylinder.

25. Assembly (4) according to any one of claims 17 to 24 in which the grouping chamber (11) is configured to produce a packet (2) of at least 8 balls, preferably a packet (2) of at least 10 balls.

26. Assembly (4) according to any one of claims 17 to 25 in which, the grouping chamber (11) comprises a pressing device (114) configured to exert a vertical force on the bundle (2) of balls (2a), the force being oriented so as to press the bundle (2) against the floor (111).

27. ​​Assembly (4) according to any one of claims 17 to 26 in which the grouping chamber (11) comprises a thrusting system (14) configured to exert a thrust on the bundle (2) so as to permit the ejection of the bundle (2) of bullets (2a) out of the grouping chamber (11) through the exit opening (112) along an ejection direction (E), the ejection direction (E) preferably being parallel to the main direction of advancement (A).

28. Assembly (4) according to any one of claims 17 to 27 in which, the exit opening (112) comprises a binding system configured to bind the bales (2a) of the bundle (2) of bales (2a).

29. Assembly (4) according to the preceding claim in which the binding system comprises a strapping system (13), the strapping system (13) comprising a frame (13a) configured to surround a bundle (2) of bales (2a) and preferably configured to surround the exit opening (112), the strapping system (13) being configured to position a tie inside the frame (13a) and trigger, when the bundle (2) is inside the frame (13a), the ejection of the tie out of the frame (13a) and the winding and then closing of the tie around the bundle (2).

30. Assembly (4) according to the preceding claim in which the strapping system (13) is configured to affix ties (130) to the package (2) perpendicular to the ejection direction (E).

Images