Leveling device for construction equipment and assembly of construction equipment carrying such a device

Abstract

The invention relates to a leveling device for construction equipment (30). The device comprises a frame (31) having a main blade (20) with a lower end configured to level a surface by its lower end. It is notable in that the main blade (20) is mounted on the frame (31) by at least two movable supports (21) in vertical translation. On each side of the main blade (20) is positioned a skid (22). Each skid (22) is configured to be in contact with the ground. Each skid (22) is height-adjustable relative to the main blade (20). Figure for the abstract: Fig. 1

Description

Title of the invention: Leveling device for construction machinery and assembly of a construction machinery carrying such a device Technical field of the invention

[0001] The present invention relates to a leveling device for construction machinery and an assembly of construction machinery carrying such a device. It applies, in particular, to construction and public works. This type of device is used to prepare and level ground surfaces in the context of various construction, development, renovation and maintenance operations.

[0002] Here are some specific examples of the field of application of a leveling device for construction machinery:

[0003] The leveling device is used to prepare surfaces before laying asphalt, bituminous coatings or other construction materials. It allows to create flat, uniform and high-quality surfaces, ensuring the safety and durability of road infrastructure.

[0004] In residential, commercial or industrial construction projects, the leveling device is used to prepare the land by leveling the areas where the buildings will be erected, adjusting the slopes and eliminating irregularities. It is also used for the finishing layer.

[0005] The leveling device is essential for earthworks, whether for the creation of construction platforms, the preparation of foundations or the development of storage areas.

[0006] In municipal infrastructure improvement projects, the grading device is used to repair, renovate, or create new roads, sidewalks, bicycle paths, trenches, and other urban improvements.

[0007] In more complex projects such as the construction of airports, seaports or civil engineering projects, the leveling device is used to prepare landing surfaces, docks and other necessary facilities.

[0008] In addition to initial construction, the leveling device is also used for regular maintenance of existing infrastructure, repairing damaged surfaces or restoring the flatness of roads and terrain. Prior art

[0009] In the field of soil and road preparation before surfacing, it is widely recognized that manual interventions predominate. This approach is particularly widespread for narrow roads and alleys, as well as for areas that are difficult to access, characterized by slopes and topographical configurations. complex graphics. Traditional specialized machines prove cumbersome and unwieldy in these specific conditions, limiting their effectiveness.

[0010] Existing techniques essentially consist of manual methods involving the transport of materials using wheelbarrows or equivalents, followed by rough leveling carried out manually. These methods, although common, suffer from several major drawbacks. They are time-consuming, requiring a significant workforce and leading to considerably extended construction times. These durations are often at odds with changing weather constraints and economic imperatives linked to completion times.

[0011] Due to the physical and demanding nature of these tasks, operators quickly experience fatigue, leading to ever-present safety concerns. The often arduous working conditions can also make it difficult to recruit staff for these roles, compounding the challenges already present on construction sites. Presentation of the invention

[0012] The present invention aims to remedy these drawbacks with a completely innovative approach.

[0013] More specifically, the invention aims to provide a multi-articulated leveling device adaptable to several types of road and several construction site configurations.

[0014] In particular, one objective of the invention is to provide such a technique which can be adapted to common carrier machines such as mini-loaders or construction machinery while avoiding any complex adjustment.

[0015] These objectives, as well as others which will appear subsequently, are achieved, according to a first aspect, using a leveling device for construction machinery, the device comprises a frame having a main blade comprising a lower end and configured to level a surface by its lower end, remarkable in that the main blade is mounted on the frame by at least two supports movable in vertical translation. On each side of the main blade is positioned a shoe, each shoe is configured to be in contact with the ground, each shoe is adjustable in height relative to the main blade.

[0016] Each skate is independently height adjustable relative to the main blade, allowing the latter to rise or fall relative to the base of the skates. The skates thus positioned serve as a reference for the leveling height. The weight of the device is then entirely distributed over the two skates, which have a shape that allows the device to be held on the ground and to contain the materials in front of and to the side of the main blade. A locking system using sliding axes in holes allow, if desired, the frame to be locked in relation to the main blade.

[0017] Thanks to these provisions, the leveling device allows the materials present in front of the machine to be adjusted and leveled in different construction site configurations.

[0018] In one embodiment, the base of each pad is positioned on the ground at the same height or lower than the base of the leveling blade. In this configuration, the leveling blade allows for surface leveling or spreading a selected thickness of material.

[0019] The leveling device manages gradients, which means that it can adjust the level of the materials according to the slope of the ground. This is particularly useful for working on inclined terrain and ensuring uniform leveling despite topographical variations.

[0020] In one embodiment, a caster is connected to the skate and adjustable in height relative to the skate. Each skate comprises a caster adjustable in height relative to the base of the skate. This caster positioned at a height lower than the base of the skate allows the entire device to slide better and not to mark the support when it is for example of the asphalt or concrete type.

[0021] In one embodiment, the adjustable height of each skate is independent of the adjustment height of the casters.

[0022] The caster rests on a border located on one side of the device. This same border serves as a level reference for the base of the leveling blade which is located at a positive or negative height relative to the upper base of the border.

[0023] According to a variant, the pads are positioned higher than the base of the leveling blade, which then allows a thickness of material to be removed. This thickness and therefore this layer of material removed corresponds to the difference in height between the lower base of the pads and the lower base of the leveling blade.

[0024] Thanks to these features, the leveling device allows for reduced construction times. The mechanization of operations considerably limits the need for tedious manual interventions, thus reducing the strain on operators. This improves their comfort and can also help attract and retain workers in a field where it is often difficult to recruit.

[0025] In one embodiment, it comprises a first side flap fixed on one side of the frame, the first side flap comprises a first wear blade having a lower end and configured to level a surface by its lower end.

[0026] In one embodiment, the first side flap is movable in vertical translation relative to the main blade.

[0027] In one embodiment, the first side flap is movable in rotation relative to a vertical axis of the main blade.

[0028] In one embodiment, the first side flap is rotatable by relative to a horizontal axis of the main blade.

[0029] In one embodiment, the first side flap comprises a portion movable in rectilinear translation configured to increase the width of the first side flap.

[0030] The first side flap comprises a main portion and a sliding portion (moving portion), this first side flap comprises a first wear blade at its lower end configured to level a surface. The sliding portion comprises a second wear blade at its lower end configured to level a surface.

[0031] In one embodiment, it comprises a second lateral flap fixed to the first lateral flap, the second lateral flap comprises a second wear blade having a lower end and configured to level a surface by its lower end, the second lateral flap is movable in rotation relative to a vertical axis of the first lateral flap.

[0032] In one variant, the second flap is removable. It is held by pins and is easily removable.

[0033] In one embodiment, the device makes it possible to level surfaces located on the side of the main blade. These same surfaces can have variable widths and inclinations, they can be located at negative or positive heights relative to the base of the skate located on the same side.

[0034] For example, we can level inside a trench, we can also level a surface located behind and lower than a curb located on the side of the device. We can also level finishing layers on surfaces such as sidewalks, cycle paths and verges along roads,...

[0035] Thanks to these features, the leveling device allows for a considerably reduced construction time. The mechanization of leveling operations eliminates the need for tedious manual interventions, which speeds up the surface preparation process.

[0036] By eliminating or significantly reducing manual and physically demanding tasks, the leveling device helps reduce the arduousness of work for operators. This improves their comfort and can also help attract and retain workers in a field affected by a labor shortage.

[0037] In summary, the leveling device described offers advantages in terms of ease of use, precision, efficiency, reduction of construction time, quality of finishes and reduction of hardship for operators.

[0038] A construction machine is, for example, a mini-loader, a wheel loader, a backhoe loader, a bulldozer, a digger (excavator), an agricultural tractor, a dump truck with tipping body, a compactor (steamroller) with leveling equipment, a scraper (scraping), a mini-excavator, a crane truck, a tracked excavator, etc.

[0039] These construction machines can be adapted by integrating a leveling device to improve their ability to prepare and level ground surfaces. The addition of such a device can allow more precise and faster execution of leveling operations, thereby improving the overall efficiency of construction and public works.

[0040] The invention is advantageously implemented according to the embodiments and variants set out below, which are to be considered individually or according to any technically effective combination.

[0041] In one embodiment, the rotational mobility of the first side flap relative to the main blade is achieved by a first cylinder of the first side flap and the rotational mobility of the second side flap relative to the first side flap is achieved by a second cylinder of the second side flap.

[0042] Each mobility in translation or in rotation is carried out by the action of a hydraulic cylinder. The vertical translation movement of the caster relative to the skate is carried out manually by the action of a crank. All of these hydraulic functions are controlled by a box with buttons located in the cabin of the carrier machine.

[0043] In one embodiment, each movable support corresponds to axes, such as rods, secured to the frame relative to the main blade, each axis is housed in oblong-shaped through openings of the main blade.

[0044] In one embodiment, it further comprises a bucket shell mounted on the main blade, said bucket shell having an open position and a closed position.

[0045] The removable shell is fixed on the main blade and positioned between the two skids. This shell is composed of a main panel on the lower part, two side panels and fixing and movement members. The entire device thus equipped makes it possible to scrape, level, load, transport and dump the materials. In the loading position (closed position) and transport of the materials, the sides are parallel to the skids and the bottom perpendicular to the main blade. In the dumping position (open position), the sides remain parallel to the skids and the bottom becomes parallel to the main blade.

[0046] In one embodiment, it further comprises a rotating brush mounted on the main blade. The entire device thus equipped makes it possible to scrape, level and sweep the surface located in front of the main blade.

[0047] According to a second aspect, the present invention relates to an assembly of a construction machine carrying such a device.

[0048] The advantages, aims and particular characteristics of this assembly being similar to those of the leveling device which is the subject of the present invention, they are not recalled. here. Brief description of the figures

[0049] Other advantages, aims and characteristics of the present invention emerge from the following description, given for explanatory and in no way limiting purposes, with reference to the appended drawings, in which:

[0050] [Fig. 1] represents a perspective view with a construction machine and a leveling device according to an exemplary embodiment of the present invention;

[0051] [Fig.2] represents a perspective and sectional view of the leveling device;

[0052] [Fig.3] shows a perspective view of the leveling device with the first side flap and the second side flap in one position;

[0053] [Fig.4] shows a perspective view of the leveling device with the first side flap and the second side flap in another position;

[0054] [Fig.5] shows another perspective view of the leveling device with the first side flap and the second side flap;

[0055] [Fig.6] shows another perspective view of the leveling device with the first side flap and the second side flap;

[0056] [Fig.7] shows a view where the inside of the shoe of the leveling device is visible;

[0057] [Fig.8] represents a perspective view of the leveling device with a positive offset and with the second element of the first flap in the open position;

[0058] [Fig.9] shows a rear view of the leveling device with the second element of the first flap in the open position;

[0059] [Fig. 10] shows a perspective view of the leveling device with a negative offset;

[0060] [Fig. 11] shows a construction machine with the leveling device and a brush;

[0061] [Fig. 12] shows the entire device equipped with the shell in the closed position.

[0062] [Fig. 13] shows the entire device equipped with the shell in the open position.

[0063] In the description and claims, for the sake of clarity, the terminology longitudinal, transverse and vertical will be adopted without limitation with reference to the conventional X, Y, Z trihedron. Description of the embodiments

[0064] [Fig. 1] shows a perspective view with a construction machine 30 and a leveling device.

[0065] The frame 31 serves as a solid base for the operation of the leveling device and has a separate main blade 20. This main blade 20 has a specially configured lower end and constitutes the central element responsible for leveling the surface. The main blade 20 is designed so that it can be positioned so that its lower end can be in direct contact with the surface to be leveled.

[0066] This embodiment is distinguished by the use of two movable supports mounted on either side of the main blade 20. These movable supports are designed to allow vertical translational movement. They ensure stabilization and precise guidance of the main blade 20 when it is in action. This design with movable supports gives optimal flexibility to the apparatus, allowing adjustment of the height of the main blade 20 to adapt to different ground conditions and specific leveling requirements.

[0067] Each side of the main blade 20 is equipped with a skid 22. These skids 22, configured to be in direct contact with the ground, play an essential role in maintaining the stability of the apparatus during the leveling process. Each skid 22 is designed to be adjustable in height relative to the main blade 20. This adjustment mechanism makes it possible to precisely control the distance between the skids 22 and the main blade 20, thus ensuring uniform leveling even on uneven surfaces.

[0068] The design of the main blade 20 is perfectly aligned with the requirements of the leveling device and the construction machine 30 for which it is intended. It incorporates secure fixing mechanisms and suitable articulation points to ensure a stable connection with the construction machine 30, thus allowing precise and efficient handling during leveling operations.

[0069] In this embodiment, the main blade 20 is provided with a special geometry that allows for optimal contact with the surface to be leveled. This geometry is designed to minimize the effects of wear and abrasion while ensuring uniform and precise leveling. In addition, the design of the blade incorporates adjustment features that allow the depth and angle of the blade to be adjusted according to specific leveling needs.

[0070] The main blade 20 is provided with a lower end comprising an interchangeable part, specially designed to cope with the wear inherent in repeated leveling operations.

[0071] The main blade 20 of the device is carefully designed to accommodate this interchangeable part. This part is positioned at the lower end of the main blade 20, which is subject to increased wear due to its direct contact with the surface of the ground to be leveled. The design allows this part to be changed without requiring major modifications to the main blade 20.

[0072] The interchangeable part is made from wear and abrasion resistant materials suitable for the rigors of construction sites. It can be configured as easily replaceable parts, such as wear plates or specific tips. This modular design allows the operator to remove the worn part and replace it with a new one without having to replace the entire main blade 20.

[0073] The implementation of this interchangeable part gives the device several significant advantages. It makes it possible to extend the useful life of the main blade 20 by specifically targeting the areas most subject to wear. In addition, it reduces maintenance costs by avoiding frequent replacement of the entire blade.

[0074] [Fig.2] shows a perspective and sectional view of the leveling device.

[0075] The main blade 20 is mounted on the frame 31 by at least two movable supports 21 in vertical translation. The main blade 20 is floating relative to the ground.

[0076] Each movable support 21 corresponds to axes secured to the frame relative to the main blade 20. The axes are housed in rectilinear guides of the frame. According to this example, the rectilinear guides are through openings of oblong shape.

[0077] In a variant, there are two movable supports 21 on each side of the main blade 20.

[0078] In another variant shown in the figures below, the two movable supports 21 are doubled on each side. In this case, on each side, there is a movable support 21 one below the other.

[0079] In a variant, an axis is inserted behind the main blade and makes it possible to block the movable support 21. According to this example, the axis is inserted inside rectilinear guides of the frame 31.

[0080] This figure shows a caster 23, which is mounted adjustable in height relative to the skate and the main blade 20. The caster 23 is inside the skate 22.

[0081] This wheel 23 gives the device substantial advantages in terms of leveling precision and adaptability to variable terrain conditions.

[0082] In this embodiment, each pad 22 of the device is equipped with a wheel 23. This wheel 23 is carefully connected to the pad 22 by a slide, thus allowing an adjustable degree of freedom.

[0083] The ability to adjust the height of each caster 23 relative to the shoe 22 and the main blade 20 allows for optimized surface leveling. This height adjustment mechanism provides unprecedented flexibility, allowing the operator to adjust the position of the caster 23 to suit specific terrain characteristics and leveling needs.

[0084] The skate 22 and the caster 23, adjustable in height, provide several important advantages bearings. They ensure optimal contact with the ground, regardless of the topography and nature of the terrain. This guarantees uniform and high-quality leveling, even on uneven surfaces. The ability to adjust the height of each shoe 22 and roller 23 also provides great adaptability, allowing the device to be quickly adjusted to variations in the terrain and the required leveling specifications.

[0085] Naturally, the invention is described in the above by way of example. It is understood that those skilled in the art are able to carry out different variant embodiments of the invention without departing from the scope of the invention.

[0086] Figures 3 and 4 show two perspective views of the leveling device with the first side flap 24 and the second side flap 25.

[0087] This embodiment highlights the provision of two separate side flaps: the first side flap 24 and the second side flap 25. Each side flap is designed for independent rotation around a specific vertical axis, thereby contributing to extending the overall width of the main blade 20 and optimizing the leveling process.

[0088] The first side flap 24 is designed to be rotatable relative to a vertical axis of the main blade 20. This first side flap 24 is positioned so as to allow lateral extension of the main blade 20, thereby increasing the effective width of the leveling device. This independent rotation of the first side flap 24 makes it possible to quickly adapt the width of the device according to the specific leveling needs and the dimensions of the work area.

[0089] The second side flap 25 is also designed to be rotatable about a vertical axis, but this time this axis is located on the first side flap 24. This mechanism allows the second side flap 25 to rotate about the first side flap 24, thus providing even greater flexibility in adjusting the width of the leveling device. The rotation of the second side flap 25 helps to optimize the lateral coverage of the main blade 20, thus adapting the device to the specific ground conditions and leveling requirements.

[0090] When the two side flaps are positioned in a certain configuration, they help to extend the width of the main blade 20, thus creating a wider and more efficient leveling surface. This innovative design allows for faster and more accurate leveling, while minimizing the number of passes required over the surface to be treated.

[0091] Each rotation is possible from an angle of 0 to 90°. The angle of the second flap relative to the first flap is between 0 and 150°.

[0092] Figures 5 and 6 show another perspective view of the leveling device with the first side flap 24 and the second side flap 25.

[0093] This embodiment highlights the use of movable side flaps in rotation, each controlled by a double-acting hydraulic cylinder, allowing precise adjustment of the leveling configuration.

[0094] The leveling device comprises a first lateral flap 24 which is capable of rotation around a vertical axis of a first double-acting hydraulic cylinder 26. This hydraulic cylinder makes it possible to control the rotation of the first lateral flap 24, thus allowing rapid adaptation of the working width of the main blade 20 according to the specific needs of the site.

[0095] Then, the second lateral flap 25 is positioned to be movable in rotation relative to a vertical axis located on the first lateral flap 24. This movement is made possible thanks to a second double-acting hydraulic cylinder 27 of the second lateral flap 25. This second hydraulic cylinder 27 makes it possible to adjust the angle and position of the second lateral flap 25, which contributes to optimal lateral coverage and precise adaptation to the characteristics of the terrain.

[0096] The use of double-acting hydraulic cylinders to control the side flaps offers several advantages. It allows precise and independent control of each side flap, which facilitates real-time adjustment according to site conditions. In addition, the hydraulic technology ensures rapid response and smooth handling of the side flaps, which improves overall leveling efficiency.

[0097] [Fig.7] shows a view where the inside of the leveling device pad is visible.

[0098] A through hole is visible for the caster to pass through. The caster is fixed to the pad and adjustable in height relative to it.

[0099] Figures 8 and 9 show a perspective view and a rear view of the leveling device.

[0100] In [Fig.8] or [Fig.9], the sliding part of the first side flap 24 is visible. This sliding part increases the width of the first side flap 24. The entire first side flap is composed of a first flap 24a and a first element 24b. According to one example, the sliding part is substantially equal to the width of the first side flap 24.

[0101] It is also visible in [Fig.8] that the first side flap is lowered relative to the main blade 20, this shows the great flexibility of inclination and sliding of the different parts.

[0102] Each of the first side flap 24 or the second side flap 25 is designed to provide a positive or negative offset, which allows the horizontal position of the leveling device to be adjusted.

[0103] [Fig. 10] shows a perspective view of the leveling device with a negative offset.

[0104] The first side flap 24 is designed to allow a positive or negative offset. This means that it can be moved laterally relative to the main blade 20, i.e. outwards at a positive angle (positive offset) of approximately 12°, or at a negative angle (negative offset) of approximately 12°. This lateral movement of the first lateral flap 24 makes it possible to adjust the horizontal position of the leveling device relative to the construction machine, thus providing adaptability to ground conditions and specific leveling needs.

[0105] Similarly, the second side flap 25 is also designed to allow for positive or negative offset. It can be moved laterally relative to the first side flap 24, thus providing additional horizontal adjustment of the device. This feature makes it possible to maximize the lateral coverage of the leveling device and to achieve more precise leveling over a larger area.

[0106] By combining the positive and negative offsets of the two side flaps, the leveling device can be positioned to reach areas that are difficult to access or to adapt to variations in the topography of the terrain.

[0107] [Fig. 11] shows a construction machine with the leveling device and a rotating brush.

[0108] In one embodiment of the invention, the leveling device comprises a rotating brush 28 or an articulated sweeper. This sweeper is mounted on the main blade by means of two axes fixed in an upper position, allowing a multidirectional sweeping movement.

[0109] A skate 22 and the second flap 25 are visible when folded down.

[0110] The addition of the articulated sweeper on the main blade serves to facilitate site cleaning quickly and efficiently. The sweeper, thanks to its articulated design, can adapt to the slopes of the terrain in a precise and adaptive manner.

[0111] In the same way as the main blade, the sweeper follows the contours of the terrain, thus ensuring deep cleaning even in areas where the topography is irregular.

[0112] The leveling device, in this embodiment, therefore offers a significant advantage in terms of site cleaning. It allows work areas to be kept clean and clear, while significantly reducing the time required for cleaning. The increased efficiency resulting from the use of the articulated sweeper contributes to improving the overall efficiency of the work process on the site.

[0113] In a variant, not shown, a horizontal jib comprising a vertically adjustable free-rotating wheel is fixed to the main blade. This device provides another reference and level support for leveling.

[0114] Figures 12 and 13 show the entire device equipped with the shell in the closed and open position.

[0115] A part of the hull is open in pivot connection with the main blade and ac- adjustable by a jack fixed to the main blade 20.

[0116] In one embodiment, the leveling device has the main blade provided with a portion similar to a bucket shell 29, designed specifically for transporting materials. This portion, incorporated into the main blade, provides additional functionality to the device, thus allowing efficient and convenient handling of materials on the construction site.

[0117] The addition of this bucket shell portion 29 provides significant benefits to the surface preparation and site work process. This feature allows materials to be brought to the areas where they are needed very quickly. The operator can load the bucket shell portion 29 with the appropriate materials and transport them directly to the areas to be treated. This approach significantly reduces the time required to deliver the necessary materials, thereby increasing the efficiency of operations.

[0118] In addition, this same bucket shell-like portion 29 also allows for the removal of excess materials efficiently. When materials are surplus in certain areas, the operator can load them into the bucket shell 29 and quickly remove them from the site, thereby avoiding unnecessary accumulations and helping to maintain order and cleanliness.

[0119] The combination of the main blade with this bucket shell-like portion 29 gives the device increased versatility and utility on the jobsite. By providing a convenient and fast method for transporting materials, this feature improves productivity while reducing potential delays related to the availability of necessary materials.

[0120] It is emphasized that all features, as they emerge for a person skilled in the art from the present description, the drawings and the attached claims, even if concretely they have only been described in relation to other determined features, both individually and in any combinations, can be combined with other features or groups of features disclosed herein, provided that this has not been expressly excluded or that technical circumstances make such combinations impossible or meaningless. List of reference signs

[0121] [Tables 1] References Designations 20 Main blade 21 Mobile support 22 Shoe 23 Wheel 24 First side flap 24a First flap 24b Mobile part 25 Second side flap 26 First side flap cylinder 27 Second side flap cylinder 28 Rotary brush 29 Bucket shell 30 Construction machine 31 Frame

Claims

Claims

1. Leveling device for construction machinery (30), the device comprises a frame (31) having a main blade (20) having a lower end and configured to level a surface by its lower end, characterized in that the main blade (20) is mounted on the frame (31) by at least two movable supports (21) in vertical translation, on each side of the main blade (20) is positioned a pad (22), each pad (22) is configured to be in contact with the ground; each pad (22) is adjustable in height relative to the main blade (20).

2. Device according to claim 1, in which a caster (23) is connected to the skate (22) and adjustable in height relative to the skate (22).

3. Device according to claim 2, in which the adjustable height of each skate (22) is independent of the adjustment height of the rollers (23).

4. Device according to claim 1, in which it comprises a first side flap (24) fixed on one side of the frame (31), the first side flap (24) comprises a first wear blade having a lower end and configured to level a surface by its lower end.

5. Device according to claim 4, in which the first lateral flap (24) is movable in vertical translation relative to a vertical axis of the main blade (20).

6. Device according to claim 4, in which the first side flap (24) is rotatable relative to a vertical axis of the main blade (20).

7. Device according to claim 4, in which the first side flap (24) is rotatable relative to a horizontal axis of the main blade (20).

8. Device according to claim 4, in which the first lateral flap (24) comprises a movable part (24b) in rectilinear translation configured to increase the width of the first lateral flap (24).

9. Device according to claim 4, in which it comprises a second lateral flap (25) fixed to the first lateral flap (24), the second lateral flap (25) comprises a second wear blade having a lower end and configured to level a surface by its lower end, the second lateral flap (25) is movable in rotation relative to a vertical axis of the first lateral flap (24).

10. Device according to claim 9, wherein the rotational mobility

11.

12.

13.

14. of the first side flap (24) relative to the main blade (20) is achieved by a first cylinder (26) of the first side flap (24) and the rotational mobility of the second side flap (25) relative to the first side flap (24) is achieved by a second cylinder (27) of the second side flap (25). Device according to claim 1, in which each movable support (21) corresponds to axes, such as rods, integral with the frame (31) relative to the main blade (20), each axis is housed in oblong-shaped through openings of the main blade (20). Device according to claim 1, in which it further comprises a bucket shell (29) mounted on the main blade, said bucket shell (29) has an open position and a closed position. A device according to claim 1, wherein it further comprises a rotating brush (28) mounted on the main blade. Assembly of a construction machine (30) carrying a device according to one of the preceding claims.

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