Scraper assembly

Abstract

A scraper assembly for a floor processing roller of a floor processing machine includes a scraper beam extending longitudinally along a beam longitudinal axis, which is pivotally mounted or pivotally mounted on the frame of the floor processing machine between an active and inactive position by means of at least two hinge units. Each hinge unit includes: first and second hinge support elements fixed to the frame and the scraper beam, respectively; at least one first hinge connection element pivotally connected to the first and second hinge support elements about first and second pivot axes in its first and second pivot coupling regions, respectively; and at least one second hinge connection element pivotally connected to the first and second hinge support elements about third and fourth pivot axes in its first and second pivot coupling regions, respectively, wherein the first and second pivot axes are substantially parallel, and the third and fourth pivot axes are substantially parallel.

Description

Technical Field

[0001] This invention relates to a scraper assembly for use as a floor processing roller on a floor processing machine. Background Technology

[0002] Such a floor processing machine is used, for example, as a floor compactor for compacting surfaces, such as asphalt materials. To prevent the material to be compacted from adhering to the surface of the floor processing rollers of such a floor processing machine, at least one scraper assembly may be provided for such floor processing rollers having a scraper beam extending longitudinally along the longitudinal axis of the rollers and extending along the floor processing rollers.

[0003] Such a scraper assembly is known from JP 2021055301A. In this known scraper assembly, the scraper beam—by means of two hinged units spaced apart from each other in the direction of the beam's longitudinal axis or the roller's rotation axis—is pivotally supported on the frame of a ground processing machine between a non-moving position, where the scraper beam pivots away from the surface of the ground processing roller with its scraper edge, and the moving position, where the scraper beam rests with its scraper edge against the hinged unit of the ground processing roller. Each hinged unit is configured to allow the scraper beam to pivot about a pivot axis. By having its scraper beam rest against the surface of the ground processing roller with its scraper edge in the moving position, material adhering to the surface of the ground processing roller can be scraped. On the other hand, a liquid film (Flüssigkeitsfilm) – which is applied to the surface of the ground processing roller, for example by means of multiple nozzles – is evenly distributed on the surface of the ground processing roller, so that the liquid film can prevent the material to be rolled from adhering to the surface of the ground processing roller or at least make it difficult for the material to be rolled to adhere to the surface of the ground processing roller.

[0004] These surface finishing rollers are supported on the frame of a surface compactor via flexible suspension elements, the frame carrying the surface finishing rollers and the scraper assembly assigned to them. This causes relative movement to occur in the area of ​​the suspension elements between the frame, which rotatably supports the surface finishing rollers, and the surface finishing rollers rotatably supported thereon, during turning movements. This relative movement results in a slit-like gap—between the surface of the surface finishing rollers and the scraper edges of the scraper beam assigned to and supported on the frame—that gradually increases from one axial end region of the surface finishing rollers to the other. Summary of the Invention

[0005] The object of the present invention is to provide a scraper assembly for a floor processing roller of a floor processing machine, by which the scraper assembly (especially when performing steering motion) avoids the gap that occurs between the surface of the scraper beam and the floor processing roller.

[0006] According to the invention, this objective is achieved by a scraper assembly for a floor processing roller of a floor processing machine according to claim 1. This scraper assembly comprises a scraper beam extending longitudinally along the longitudinal axis of a beam, pivotally mounted / being pivotally mounted on the frame of the floor processing machine between an active and inactive position by means of at least two hinge units, wherein each hinge unit comprises:

[0007] - First hinged support element It is designed to be fixed to a rack.

[0008] - The second hinged support element is designed to be fixed to the scraper beam.

[0009] The scraper assembly is characterized in that each hinge unit further includes:

[0010] - At least one first hinged connecting element, wherein the at least one first hinged connecting element is pivotally connected to a first hinged support element about a first pivot axis in a first pivot coupling region of the at least one first hinged connecting element, and is pivotally connected to a second hinged support element about a second pivot axis (which is substantially parallel to the first pivot axis) in a second pivot coupling region of the at least one first hinged connecting element.

[0011] - At least one second hinged connecting element, wherein the at least one second hinged connecting element is pivotally connected to a first hinged support element about a third pivot axis (which is substantially parallel to the first pivot axis) in a first pivot coupling region of the at least one second hinged connecting element, and is pivotally connected to a second hinged support element about a fourth pivot axis (which is substantially parallel to the third pivot axis) in a second pivot coupling region of the at least one second hinged connecting element.

[0012] By providing at least one first hinged connecting element and at least one second hinged connecting element in each hinged unit of the scraper assembly constructed according to the invention, and by providing each of these hinged connecting elements pivotally connected to one of the hinged support elements in two pivotally coupled regions respectively, a total of four different, but substantially parallel, pivot axes exist. This results in a parallelogram-like connection in function, allowing the scraper beam, for example, pivotally supported on the frame by means of two such hinged units, to move in different ways relative to the frame and the ground processing rollers rotatably supported on the frame at its two axial end regions. This also contributes to the inevitable creation of a movement gap between the corresponding hinged support element and the corresponding hinged connecting element in each of the four pivotally coupled regions, which allows not only pure pivoting movement but also minute lateral movements orthogonal to the corresponding pivot axis or minute tilting movements relative to the corresponding pivot axis of the pivotally coupled components. The motion clearances present in the pivot coupling region are added together, and thus allow for different mobility in the articulated unit when the scraper beam has mobility between its inactive and active positions, which allows for compensation of the clearances that occur during steering motion.

[0013] In a design that can be constructed using components that can be easily manufactured, two first hinge connecting elements can be arranged spaced apart from each other in the directions of a first pivot axis and a second pivot axis in at least one (preferably each) hinge element, and a first pivot coupling region of a first hinge support element is arranged axially between the first pivot coupling regions of the first hinge connecting elements, and a first pivot coupling region of a second hinge connecting element is arranged axially between the second pivot coupling regions of the first hinge connecting elements; or / and, in at least one (preferably each) hinge unit, two second hinge connecting elements can be arranged spaced apart from each other in the directions of a third pivot axis and a fourth pivot axis, and a second pivot coupling region of a first hinge support element is arranged axially between the first pivot coupling regions of the second hinge connecting elements, and a second pivot coupling region of a second hinge connecting element is arranged axially between the second pivot coupling regions of the second hinge connecting elements.

[0014] In order to achieve a design with as few components as possible, a unique first hinge connection element is provided in at least one (preferably each) hinge unit, and the first pivot coupling region of the first hinge support element overlaps the first pivot coupling region of the first hinge connection element on both axial sides of the first hinge connection element, and the first pivot coupling region of the second hinge support element overlaps the second pivot coupling region of the first hinge connection element on both axial sides of the first hinge connection element, or / and, a unique second hinge connection element is provided in at least one (preferably each) hinge unit, and the second pivot coupling region of the first hinge support element overlaps the first pivot coupling region of the second hinge connection element on both axial sides of the second hinge connection element, and the second pivot coupling region of the second hinge support element overlaps the second pivot coupling region of the second hinge connection element on both axial sides of the second hinge connection element.

[0015] In order to pivotally connect the different components of the respective hinge unit, at least one first hinge connecting element may be pivotally connected to a first hinge support element in its first pivot coupling region via a pivot bolt around a first pivot axis, or / and at least one first hinge connecting element may be pivotally connected to a second hinge support element in its second pivot coupling region via a pivot bolt around a second pivot axis, or / and at least one second hinge connecting element may be pivotally connected to a first hinge support element in its first pivot coupling region via a pivot bolt around a third pivot axis, or / and at least one second hinge connecting element may be pivotally connected to a second hinge support element in its second pivot coupling region via a pivot bolt around a fourth pivot axis.

[0016] To achieve the combined pivot-push motion (Schwenk-Schiebe-Bewegung) of the scraper beam during movement between the inactive and active positions, the distance between the first and third pivot axes must differ from the distance between the second and fourth pivot axes. Specifically, the distance between the first and third pivot axes can be made smaller than the distance between the second and fourth pivot axes.

[0017] In an alternative design in which the scraper beam moves tangentially toward or away from the surface of the ground-processing roller in a substantially translational manner, the spacing between the first and third pivot axes may correspond to the spacing between the second and fourth pivot axes. Specifically, in this design and in a design with a combined pivot-push motion, the spacing between the first and second pivot axes substantially corresponds to the spacing between the third and fourth pivot axes. It should be noted that the spacings mentioned in this context refer to the orthogonal spacing between the pivot axes in question.

[0018] In order to ensure that the first and second hinged connecting elements disposed in the respective hinged units are relatively close to each other, and to avoid mutual interference between the pivoting coupling regions during pivoting movements, particularly in the region of the pivoting coupling region, it is proposed that at least one first hinged connecting element bends at least on the side facing at least one second hinged connecting element between its first and second pivoting coupling regions, and / or at least one second hinged connecting element bends at least on the side facing at least one first hinged connecting element between its first and second pivoting coupling regions. The corresponding hinged connecting elements may also naturally have a bending orientation overall.

[0019] Specifically, at least one first hinged connecting element and at least one second hinged connecting element are bent in opposite directions to each other. It can also be configured such that at least one first hinged connecting element and / or at least one second hinged connecting element are concave on the side facing their respective other hinged connecting element. This concave bending provides a space that allows the corresponding other hinged connecting element or its pivot coupling region to enter during pivoting movements.

[0020] To hold the scraper beam in its active and inactive positions, a preload assembly can be provided. This preload assembly preloads the scraper beam into the inactive position and into the active position. That is, the preload assembly is an eccentric assembly. The eccentric component preloads the scraper beam to the corresponding position between the active and inactive positions when it exceeds the dead point (Totpunkt), especially to the corresponding position to which the scraper beam moves.

[0021] In a construction that is simple to implement and works reliably, the preload assembly may include at least one (preferably two) preload springs arranged axially spaced from each other and acting between the first hinge support element and the second hinge support element.

[0022] At least one (preferably each) of the first and second hinged connecting elements is tiltably movable or / and orthogonally movable with respect to the hinged support element of the first and second hinged support elements coupled thereto, within at least one (preferably each) of the first and second pivot coupling regions, about the corresponding pivot axis. This relative mobility is generally achieved by the unavoidable, for example, existence of a clearance between the pivot bolt and the opening in the hinged support element or hinged connecting element that accommodates the pivot bolt during the manufacture of such a hinge unit. If greater relative mobility is required, this can be achieved, for example, by providing one or more openings accommodating the corresponding pivot bolts with a defined excess portion relative to the pivot bolt. To achieve this.

[0023] The present invention also relates to a ground processing machine, particularly a ground compactor, comprising at least one ground processing roller and at least one scraper assembly constructed according to the present invention corresponding to the at least one ground processing roller. Attached Figure Description

[0024] The invention will now be described in detail with reference to the accompanying drawings. Wherein it is shown that:

[0025] Figure 1 A side view of a ground compactor is shown;

[0026] Figure 2 The ground processing rollers of the ground compactor and the scraper assembly assigned to them are shown;

[0027] Figure 3 A side view of the ground compactor rollers and the scraper assembly assigned to them is shown in the active position;

[0028] Figure 4 The scraper assembly positioned in the inactive position is shown, with Figure 3 The corresponding view;

[0029] Figure 5 A perspective view of the hinge unit of the scraper assembly is shown;

[0030] Figure 6 It shows Figure 5 Another perspective view of the hinge unit;

[0031] Figure 7 A perspective view of an alternative design for the hinged unit is shown;

[0032] Figure 8 It shows Figure 7 Another perspective view of the hinged unit. Detailed Implementation

[0033] Figure 1 A side view of a ground processing machine configured as a ground compactor 10 is shown. In the illustrated embodiment, the ground compactor 10 includes a rear carriage 12 having drive wheels 14 supported thereon. (Except in...) Figure 1 In addition to the invisible drive unit, an operating platform 16 is provided on the rear vehicle 12, where the operator of the ground compactor 10 has a seat. The front vehicle 18 is pivotally connected to the rear vehicle 12. By pivoting the front vehicle 18 relative to the rear vehicle 12, the ground compactor 10 turns on the ground 20 to be compacted during movement.

[0034] The front vehicle 18 includes a frame 22 and ground processing rollers 24 surrounding it. Figure 1 The rotation axis D, orthogonal to the drawing plane, is rotatably supported on the frame 22. The ground processing roller 24 is supported on the frame 22 via a plurality of elastic suspension elements 26. In particular, motion decoupling between the ground processing roller 24 and the frame 22 is achieved when an oscillation mechanism or vibration mechanism is assigned to the ground processing roller.

[0035] It should be noted that the ground compactor 10 can be implemented in different ways. Therefore, the ground compactor may, for example, have ground processing rollers on the rear vehicle 12, or be able to be configured to... Figure 1 The different methods shown illustrate how the frame supports the corresponding ground processing rollers in a structural manner.

[0036] Figure 2 The image shows a ground machining roller 24 coupled to a frame portion 28 extending in the direction of the roller's rotation axis D, which is part of a frame 22 that rotatably supports the ground machining roller 24. A scraper assembly, indicated integrally by 30, is supported on this frame portion 28 or on the frame 22. It should be noted that, for example, two such scraper assemblies 30 may be allocated to the ground machining roller 24.

[0037] The scraper assembly 30 includes a scraper beam 32, which extends longitudinally in a direction substantially parallel to the longitudinal axis B of the beam, and is capable of... Figure 2 The scraper beam 32 moves between an active position and an inactive position, in which the scraper edge 34 of the scraper beam 32 rests against the outer peripheral surface 36 of the roller cover 38 of the ground processing roller 24, and in the inactive position, the scraper edge 34 moves away from the outer peripheral surface 36.

[0038] To achieve this mobility, the scraper beam 32 is supported on the frame component 28 or the frame 22 by means of two hinge units 40, which are preferably identical in structure and spaced apart from each other in the direction of the beam's longitudinal axis B. The two hinge units 40 are, for example, supported near the axial ends of the scraper beam 32.

[0039] The following is for reference. Figures 3 to 6 Describe the construction and function of the two hinged units 40.

[0040] first, Figure 3 and Figure 4 The scraper assembly 30 or the scraper beam 32 of the scraper assembly is shown in the active position. Figure 3 ) and inactive locations ( Figure 4 In ) Figure 3 The activity locations shown in the image are... Figure 4 During the transition between the inactive and non-active positions shown, the scraper beam 32 moves with a combined pivoting-pushing motion. This is achieved in particular by constructing each of the two hinge units 40 in a parallelogram-like manner, which, during the transition between the inactive and active positions or in the opposite direction, guide the scraper beam on a curved track in the circumferential direction or tangentially to the outer circumferential surface 36 of the rolling roller 24, and on the other hand, pivot or tilt the scraper beam radially toward or away from the track.

[0041] Figure 5 and Figure 6 As shown, each hinge unit 40 has a first hinge support element 42, which is designed to be mounted on the frame 22 or frame component 28, for example, by bolt connection. The first hinge support element 42 may be, for example, a sheet metal formwork. A second hinge support element 44 is provided for mounting on the scraper beam 32, which may be fixed to the scraper beam by bolt connection and may also be provided as a sheet metal formwork.

[0042] In order to couple the first hinged bracket element 42 and the second hinged bracket element 44, in Figure 5 and Figure 6 The illustrated design includes two first hinged connecting elements 46 and two second hinged connecting elements 48. The two first hinged connecting elements 46 are substantially identical in structure to each other, and the two second hinged connecting elements 48 are substantially identical in structure to each other. Particularly preferably, all hinged connecting elements 46 and 48 are structurally identical to each other.

[0043] Each first hinged connecting element 46 has a first pivot coupling region 50, in which the first hinged connecting element 46 is pivotally mounted on the pivot coupling region 52 of the first hinged support element 42 about a first pivot axis S1 by means of a pivot bolt 53. To provide the first pivot coupling region 52, the first pivot support element 42 may have two curved, tab-like regions that, like the first pivot coupling region 50 of the first hinged connecting element 46, provide through holes for the pivot bolt 53. The first pivot coupling region 52 of the first hinge support element 42 is arranged between the two first hinged connecting elements 46 in the direction of the first pivot axis S1.

[0044] The first hinged connecting element 46 also has a second pivot coupling region 54 in which the first hinged connecting element 46 is pivotally connected to the first pivot coupling region 56 of the second hinged support element 44 about a second pivot axis S2. The first pivot coupling region 56 of the second hinged support element 44 can be provided by bending two tabs. Corresponding to the pivot bolt 58, the first pivot coupling region 56 of the second hinged support element 44—as in each of the first hinged connecting elements 46 in its second pivot coupling region 54—has a through hole.

[0045] The second hinged connecting element 48 is pivotally connected in a corresponding first pivot coupling region 60 to the second pivot coupling region 62 of the first hinge support element 42 about a third pivot axis S3. The second pivot coupling region 62 of the first hinge support element 42 can be disposed on a curved tab that also provides a first pivot coupling region 52, and can have a through-hole for a pivot bolt 64, which also passes through a corresponding through-hole in the first pivot coupling region 60 of the second hinged connecting element 48. In a corresponding second pivot coupling region 66 of the second hinged connecting element 48, the second hinged connecting element 48 is pivotally connected to the second pivot coupling region 68 of the second hinge support element 44 about a fourth pivot axis S4. For this purpose, a pivot bolt 70 is provided, which passes through corresponding through-holes in the second pivot coupling region 66 of the second hinged connecting element 48 and in the second pivot coupling region 68 of the second hinge support element 44.

[0046] The four pivot axes S1, S2, S3, and S4 are arranged relative to each other and substantially parallel to the longitudinal axis B of the scraper beam 32 or to the roller rotation axis D. Furthermore, the distance d between the first pivot axis S1 and the third pivot axis S3 is smaller than the distance D between the second pivot axis S2 and the fourth pivot axis S4. This makes it possible to... Figure 4 The non-active position of the scraper beam 32 shown in the figure. Figure 3During the transition of the active position of the scraper beam 32 shown in the figure, the scraper beam 32 performs a movement along the circumferential direction or tangential to the ground processing roller 24 or its outer peripheral surface 36, and on the other hand, it performs a pivoting or tilting movement on the outer surface 38 until the scraper beam 32 abuts against the outer peripheral surface 36 with its scraper edge 34.

[0047] To support this movement or to hold the scraper beam 32 in an active and inactive position, a preload assembly, generally indicated by 72, is provided. In the illustrated embodiment, the preload assembly comprises two preload springs 74 arranged axially spaced from each other and configured as helical tension springs. Each preload spring 74 is fixed relative to a first pivot support element 42 in one end region and relative to a second pivot support element 44 in the other end region, and thus acts between them. The two preload springs 74 form an eccentric assembly that preloads the second pivot support element 44 in a direction toward either the active or inactive position each time the movement exceeds a dead point, toward which the scraper beam 32 moves. Here, the active position is defined by the scraper beam 32 abutting against the outer peripheral surface 36 of the ground processing roller 24. The inactive position is defined by a stop 76 provided on the first pivot support element 42, against which the second pivot support element 44 abuts when moving away from the active position. Alternatively or additionally, the stop 76 or one stop 76 may be disposed on the second pivot support element 44 and / or on one or more of the hinged connecting elements 46, 48.

[0048] exist Figure 5 and Figure 6As can be clearly seen, the first hinge element 46 and the second hinge element 48 are bent in opposite directions relative to each other. Specifically, the first hinge element 46 and the second hinge element 48, which are paired and located in the same axial region, have concave bends relative to the other hinge elements on their respective facing sides. When using similar components of hinge elements 46 and 48, in each pair consisting of the first hinge element 46 and the second hinge element 48, they are positioned opposite to each other and thus facing each other with their concave bends. This allows the second hinge element 48, or the pivot bolt 64 located therein, to enter the recess formed by the concave bend or arched profile of the first hinge element 46 when transitioning to the active position of the first pivot coupling region 60, thus preventing interference or collision between the first hinge element 46 and the second hinge element 48. For this purpose, the bending shape of the first hinge element 46 is particularly meaningful. In the shape or kinematic configuration shown in the attached figures, the second hinged connecting element 48 need not necessarily be designed to be curved. However, this allows the use of the same components for the second hinged connecting element 48 as for the first hinged connecting element 46. This also means that, when using the same components, the spacing between the first pivot axis S1 and the second pivot axis S2 corresponds to the spacing between the third pivot axis S3 and the fourth pivot axis S4. However, this design—in which the spacing between the two pivot axes or pivot coupling regions in the two types of hinged connecting elements is equal—can also be arranged independently of each other in principle, having the shape of a hinged connecting element.

[0049] It should be noted that, in principle, the following design scheme can also be selected, namely, on the one hand, the two distances d and D are equal to each other, and on the other hand, as described, the distances between pivot axes S1 and S2 or S3 and S4 are equal to each other, so that the movement between the active and inactive positions is essentially a movement that extends tangentially in an arc relative to the ground processing roller 24. A design scheme can also be conceived in which the distance between pivot axes S1 and S2 is different from the distance between S3 and S4.

[0050] By means of the aforementioned design of the hinge unit 40—in which there are a total of four pivot axes S1, S2, S3, S4 in each hinge unit 40 in which the components can move relative to each other—at least slightly different movements can occur relative to each other in the two hinge units 40 arranged respectively near the axial ends of the scraper beam 32 during the transition between the active and inactive positions, or in the respective positions (especially in the active position). This avoids the presence of gap-like gaps in the scraper assembly constructed according to the invention during steering movements and the simultaneous relative movements between the ground processing roller 24 and the frame component 28, gaps that initially appear in one of the two axial end regions of the ground processing roller 24 or are more pronounced than in the other axial end region in assemblies known in the prior art, depending on the steering direction.

[0051] This distinct mobility stems partly from the kinematics of the articulated unit 40 constructed according to the invention, and partly from the unavoidable movement gaps present in each region where the components are pivotally connected, which allow not only pure pivoting movement. These movement gaps—both necessary for assembly and unavoidable for manufacturing reasons—enable, for example, in the corresponding first pivot coupling region 50, the first articulated connecting element 46 relative to the first articulated support element 42 can move not only circumferentially about the first pivot axis S1, but also slightly orthogonal to or tilt relative to the pivot axis S1. Because such relative movement occurs in the regions of each of the four pivot axes S1, S2, S3, S4, the movement gaps add up, such that even relatively small movement gaps can result in the scraper beam 32 being able to perform tilting movements up to several degrees relative to the roller rotation axis D or the frame component 28 in each region of the articulated unit 40. This is generally sufficient to compensate for the relative movement that occurs between the ground machining roller 24 and the frame 22 during steering movements, and to avoid gap-like clearances between the scraper edge 34 and the outer peripheral surface 36. If a large relative movement between the ground machining roller 24 and the frame 22 that rotatably supports it can be anticipated due to the structural design—for example, in addition to movement clearances due to manufacturing—a defined excess is provided in the areas of the through holes accommodating the different pivot bolts 54, 64, 58, 70, which benefits this tiltability. Because the relative mobility is additive in the areas of each of the pivot bolts 54, 64, 58, 70, the relative mobility can be kept relatively low in the area of ​​each pivot bolt, which ensures a defined pivot-push movement or a defined push movement during transitions between active and inactive positions.

[0052] Figure 7 and Figure 8 An alternative design for this hinge unit 40 is shown. Figure 7 , Figure 8 The hinge unit 40 shown in the figure is provided with a unique first hinge connection element 46' or a unique second hinge connection element 48'. The hinge connection elements 46' and 48' can correspond to the previous reference in terms of their shape (especially the curved design). Figure 5 and Figure 6 The shapes of the first and second hinged connecting elements 46 and 48 are described. However, the hinged connecting elements have a significantly larger extension in the directions of the pivot axes S1, S2, S3, and S4, and overlap on both axial sides through the first and second pivot coupling regions 52, 62 or 56, 68 provided on the first hinge support element 42 and the second hinge support element 44. Therefore, while having the same function as described above, the number of components used to construct the hinge unit 40 can be significantly reduced.

[0053] In principle, the following design is also possible: in one hinged connecting element (e.g., in the first hinged connecting element), two pivotally coupled regions of a first or second hinged support element are provided between the accommodating hinged connecting elements, arranged axially spaced and corresponding to each other; while in another hinged connecting element (e.g., in the second hinged connecting element), only a single hinged connecting element is provided, which overlaps at its axial end through the corresponding pivotally coupled region of the first or second hinged support element, and is thus also axially positioned between the other two hinged connecting elements. Because all the hinged connecting elements are axially offset from each other in this design, there is no or only limited mutual interference when movement is performed between the active and inactive positions. Therefore, no or only minimal structural measures, such as bending the hinged connecting elements, are required to avoid mutual interference.

Claims

1. A scraper assembly for a flooring roller of a flooring machine, the scraper assembly comprising a scraper beam (32) extending longitudinally along a beam longitudinal axis (B) and pivotally mounted on or by means of at least two hinge units (40) on a frame (22) of a flooring machine (10) between an active and inactive position, wherein each hinge unit (40) comprises: The first hinged support element (42) is designed to be fixed to the frame (22). The second hinged support element (44) is designed to be fixed to the scraper beam (32). The feature is that each hinge unit (40) further includes: At least one first hinged connecting element, wherein at least one first hinged connecting element is pivotally connected to the first hinged support element (42) about a first pivot axis (S1) in a first pivot coupling region (50) of at least one first hinged connecting element, and is pivotally connected to the second hinged support element (44) about a second pivot axis (S2) parallel to the first pivot axis (S1) in a second pivot coupling region (54) of at least one first hinged connecting element; At least one second hinged connecting element, wherein at least one second hinged connecting element is pivotally connected to the first hinged support element (42) about a third pivot axis (S3) substantially parallel to the first pivot axis (S1) in a first pivot coupling region (60) of at least one second hinged connecting element, and is pivotally connected to the second hinged support element (44) about a fourth pivot axis (S4) parallel to the third pivot axis (S3) in a second pivot coupling region (66) of at least one second hinged connecting element.

2. The scraper assembly according to claim 1, characterized in that, In at least one hinge element (40), two first hinge connecting elements are arranged spaced apart from each other in the directions of the first pivot axis (S1) and the second pivot axis (S2), and the first pivot coupling region (52) of the first hinge support element (42) is arranged axially between the first pivot coupling regions (50) of the first hinge connecting elements, and the first pivot coupling region (56) of the second hinge support element (44) is arranged axially between the second pivot coupling regions (54) of the first hinge connecting elements, or / and, in at least one hinge unit (40), two second hinge connecting elements are arranged spaced apart from each other in the directions of the third pivot axis (S3) and the fourth pivot axis (S4), and the second pivot coupling region (62) of the first hinge support element (42) is arranged axially between the first pivot coupling regions (60) of the second hinge connecting elements, and the second pivot coupling region (68) of the second hinge support element (44) is arranged axially between the second pivot coupling regions (66) of the second hinge connecting elements.

3. The scraper assembly according to claim 1, characterized in that, In each hinge element (40), two first hinge connecting elements are arranged spaced apart from each other in the directions of the first pivot axis (S1) and the second pivot axis (S2), and the first pivot coupling region (52) of the first hinge support element (42) is arranged axially between the first pivot coupling regions (50) of the first hinge connecting elements, and the first pivot coupling region (56) of the second hinge support element (44) is arranged axially between the second pivot coupling regions (54) of the first hinge connecting elements, or / and, in each hinge unit (40), two second hinge connecting elements are arranged spaced apart from each other in the directions of the third pivot axis (S3) and the fourth pivot axis (S4), and the second pivot coupling region (62) of the first hinge support element (42) is arranged axially between the first pivot coupling regions (60) of the second hinge connecting elements, and the second pivot coupling region (68) of the second hinge support element (44) is arranged axially between the second pivot coupling regions (66) of the second hinge connecting elements.

4. The scraper assembly according to claim 1, characterized in that, A unique first hinge connection element is provided in at least one hinge unit (40), and a first pivot coupling region (52) of a first hinge support element (42) overlaps the first pivot coupling region (50) of the first hinge connection element on both axial sides of the first hinge connection element, and a first pivot coupling region (56) of a second hinge support element (44) overlaps the second pivot coupling region (54) of the first hinge connection element on both axial sides of the first hinge connection element, or / and a unique second hinge connection element is provided in at least one hinge unit (40), and a second pivot coupling region (62) of a first hinge support element (42) overlaps the first pivot coupling region (60) of the second hinge connection element on both axial sides of the second hinge connection element, and a second pivot coupling region (68) of a second hinge support element (44) overlaps the second pivot coupling region (66) of the second hinge connection element on both axial sides of the second hinge connection element.

5. The scraper assembly according to claim 1, characterized in that, Each hinge unit (40) is provided with a unique first hinge connection element, and the first pivot coupling region (52) of the first hinge support element (42) overlaps the first pivot coupling region (50) of the first hinge connection element on both axial sides of the first hinge connection element, and the first pivot coupling region (56) of the second hinge support element (44) overlaps the second pivot coupling region (54) of the first hinge connection element on both axial sides of the first hinge connection element, or / and, each hinge unit (40) is provided with a unique second hinge connection element, and the second pivot coupling region (62) of the first hinge support element (42) overlaps the first pivot coupling region (60) of the second hinge connection element on both axial sides of the second hinge connection element, and the second pivot coupling region (68) of the second hinge support element (44) overlaps the second pivot coupling region (66) of the second hinge connection element on both axial sides of the second hinge connection element.

6. The scraper assembly according to any one of claims 1 to 5, characterized in that, At least one of the first hinged connecting elements is pivotally connected to the first hinged support element (42) in its first pivot coupling region (50) around the first pivot axis (S1) via a pivot bolt (53), or / and at least one of the first hinged connecting elements is pivotally connected to the second hinged support element (44) in its second pivot coupling region (54) around the second pivot axis (S2) via a pivot bolt (58), or / and at least one of the second hinged connecting elements is pivotally connected to the first hinged support element (42) in its first pivot coupling region (60) around the third pivot axis (S3) via a pivot bolt (64), or / and at least one of the second hinged connecting elements is pivotally connected to the second hinged support element (44) in its second pivot coupling region (66) around the fourth pivot axis (S4) via a pivot bolt (70).

7. The scraper assembly according to any one of claims 1 to 5, characterized in that, The spacing between the first pivot axis (S1) and the third pivot axis (S3) is different from the spacing between the second pivot axis (S2) and the fourth pivot axis (S4).

8. The scraper assembly according to claim 7, characterized in that, The distance between the first pivot axis (S1) and the third pivot axis (S3) is less than the distance between the second pivot axis (S2) and the fourth pivot axis (S4).

9. The scraper assembly according to any one of claims 1 to 5, characterized in that, The distance between the first pivot axis (S1) and the third pivot axis (S3) corresponds to the distance between the second pivot axis (S2) and the fourth pivot axis (S4).

10. The scraper assembly according to any one of claims 1 to 5, characterized in that, At least one of the first hinged connecting elements is bent at least on the side facing at least one of the second hinged connecting elements between its first pivot coupling region (50) and its second pivot coupling region (54), or / and at least one of the second hinged connecting elements is bent at least on the side facing at least one of the first hinged connecting elements between its first pivot coupling region (60) and its second pivot coupling region (66).

11. The scraper assembly according to claim 10, characterized in that, At least one of the first hinged connecting elements and at least one of the second hinged connecting elements are bent in opposite directions to each other, or / and at least one of the first hinged connecting elements and / or at least one of the second hinged connecting elements are bent concavely toward their respective other hinged connecting elements.

12. The scraper assembly according to any one of claims 1 to 5, characterized in that, A preload assembly (72) is provided, wherein the preload assembly (72) preloads the scraper beam (32) in the inactive position when the scraper beam (32) is positioned in the inactive position, and preloads the scraper beam (32) in the active position when the scraper beam (32) is positioned in the active position.

13. The scraper assembly according to claim 12, characterized in that, The pretensioning assembly (72) includes at least one pretensioning spring (74) arranged axially spaced from each other and acting between the first hinge support element (42) and the second hinge support element (44).

14. The scraper assembly according to claim 13, characterized in that, The pretensioning assembly (72) includes two pretensioning springs (74) arranged axially apart from each other, which act between the first hinge support element (42) and the second hinge support element (44).

15. The scraper assembly according to any one of claims 1 to 5, characterized in that, At least one of the first and second hinged connecting elements can be tilted or / and orthogonally moved with respect to the hinged support elements in the first and second hinged support elements (42 and 44) ​​coupled thereto in at least one of the first and second pivot coupling regions.

16. The scraper assembly according to claim 15, characterized in that, Each of the first and second hinged connecting elements is capable of tilting or / and orthogonally moving with respect to the hinged support elements in the first hinged support element (42) and the second hinged support element (44) coupled thereto in each of the first and second pivot coupling regions.

17. A floor processing machine comprising at least one floor processing roller (24), characterized in that, At least one scraper assembly (30) according to any one of claims 1 to 16 is provided corresponding to at least one ground processing roller (24).

18. The ground processing machine according to claim 17, characterized in that, The ground processing machine is a ground compactor.

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