Limiting plate assembly of road paver, road paver and locking movement device

Abstract

The utility model relates to a limit plate subassembly for the road paver, limit plate subassembly includes limit plate, rotary device, locking device, the limit plate is attached to the part of road paver through rotary device, and the limit plate can rotate around the rotary device between minimum limit plate position and maximum limit plate position, the locking device is suitable for adopting a first locking position and a second locking position, when the limiting plate is located at the first limiting plate position, the locking device is suitable for preventing the limiting plate from rotating around the rotating device in the direction of the minimum limiting plate position at the first locking position, and when the limiting plate is located at the second limiting plate position, the locking device is suitable for preventing the limiting plate from rotating around the rotating device in the direction of the minimum limiting plate position. The locking device is suitable for preventing the limiting plate from rotating around the rotating device in the direction of the maximum limiting plate position at the second locking position. The utility model further relates to the road paver comprising the locking movement device of the limiting plate assembly and the pivotable component.

Description

Technical Field

[0001] This utility model relates to the field of road pavers. In particular, it relates to a road paver with a limiting plate assembly and a locking motion device for such a limiting plate assembly. Background Technology

[0002] Road pavers are well known in the prior art. To improve the usability of road pavers, screeds with adjustable operating widths have been designed. The operating width refers to the width of the screed across which the paving material is distributed. For example, EP2 169 117 A1 discloses a screed with a continuously variable operating width. The paving material is distributed laterally in the paving direction of the road paver via a distribution screw at the front of the screed.

[0003] Adjusting the operating width of the screed will also change the width of the applied paving material. To prevent excess paving material from stretching along the paving direction, the width of the stop plate assembly should also be selectively adjusted to the operating width. This can be achieved, for example, by using a laterally pivotable plate on the outside of the stop plate assembly.

[0004] A limit plate assembly with a pivotable limit plate for a road paver is known from EP 3 988 714 A1. The limit plate is pivoted and held in place by a hydraulic pivoting device. Utility Model Content

[0005] The objective of this invention is to provide a compact and secure locking device for pivotable components, particularly pivotable limit plates of road pavers.

[0006] The first aspect of this utility model relates to a limiting plate assembly for a road paver. The limiting plate assembly includes a limiting plate and a rotating device. The limiting plate assembly may also include an additional limiting plate. The limiting plate is attached to a component of the road paver, particularly to a component of the limiting plate assembly, via the rotating device. The limiting plate is rotatable about the rotating device. The rotating device can rotate the limiting plate about a vertical axis. The limiting plate is horizontally pivotable. The limiting plate can rotate between a minimum limiting plate position and a maximum limiting plate position.

[0007] The limiting plate assembly may further include a locking device. This locking device is adapted to employ a first locking position and a second locking position. In the first locking position, when the limiting plate is in the first limiting plate position, the locking device is adapted to prevent the limiting plate from rotating about the rotating device in the direction of the minimum limiting plate position. In the second locking position, when the limiting plate is in the second limiting plate position, the locking device is adapted to prevent the limiting plate from rotating about the rotating device in the direction of the maximum limiting plate position.

[0008] The width of the limit plate assembly can be changed by rotating the limit plate. The minimum limit plate position corresponds to the minimum width of the limit plate assembly. The maximum limit plate position corresponds to the maximum width of the limit plate assembly. In the minimum limit plate position, the limit plate can abut against the road paver. In the maximum limit plate position, the limit plate can protrude from the road paver, specifically protruding perpendicularly from the road paver.

[0009] The road paver moves along the paving direction while spreading the paving material. At the minimum limit plate position, the limit plate extends parallel to the paving direction. A rotating device can then be positioned at the front end of the limit plate relative to the paving direction. At the minimum limit plate position, the limit plate can rotate backward against the paving direction. At the maximum limit plate position, the limit plate extends orthogonally to the paving direction.

[0010] The first limiting plate position can be closer to the maximum limiting plate position than the second limiting plate position. The first limiting plate position can correspond to the maximum limiting plate position. The second limiting plate position can correspond to the minimum limiting plate position or to a limiting plate position between the minimum and maximum limiting plate positions.

[0011] The first locking position of the locking device may be different from the second locking position.

[0012] The locking device is adapted to fix the limiting plate in the first limiting plate position, particularly the maximum limiting plate position, in the first locking position.

[0013] The locking device is adapted to fix the limiting plate in a second locking position, particularly the minimum limiting plate position.

[0014] The locking device may be adapted to employ a third locking position. In the third locking position, when the limiting plate is in the third limiting plate position, the locking device may be adapted to prevent the limiting plate from rotating about the rotating device in the direction of the maximum limiting plate position.

[0015] The second limiting plate can be located between the minimum limiting plate position and the maximum limiting plate position. The second limiting plate can also be located between the first limiting plate position and the third limiting plate position. The first limiting plate position can correspond to the maximum limiting plate position. The third limiting plate position can correspond to the minimum limiting plate position.

[0016] The locking device is suitable for fixing the limiting plate in the third locking position, especially the minimum limiting plate position.

[0017] When the limiting plate is in the fourth limiting plate position, the locking device is adapted to prevent the limiting plate from rotating around the rotating device in the direction of the minimum limiting plate position in the second locking position.

[0018] The fourth limiting plate can be located between the second and third limiting plate positions. The fourth limiting plate position can correspond to the third limiting plate position.

[0019] The locking device is adapted to limit the rotation of the limiting plate around the rotating device within a certain angular range when in the second locked position. This angular range can substantially span 60 degrees. The angular range can represent a range between 0 and 60 degrees or between 120 and 180 degrees relative to the paving direction.

[0020] In the first limiting plate position, the limiting plate can form a first angle with the paving direction of the road paver. When the locking device is in the second locked position, the limiting plate can rotate relative to the paving direction of the road paver between a second angle and a third angle. In the third limiting plate position, the limiting plate can form a third angle with the paving direction of the road paver. The second angle can be located between the first angle and the third angle.

[0021] The first angle can be approximately 80 to 100 degrees from the paving direction, especially 90 degrees. The second angle can be approximately 50 to 70 degrees from the paving direction, especially 60 degrees, or 110 to 130 degrees, especially 120 degrees. The second angle can be tilted backward relative to the paving direction. The third angle can be approximately 0 to 10 degrees from the paving direction, especially 0 degrees, or 170 to 180 degrees, especially 180 degrees. The third angle can be tilted backward relative to the paving direction.

[0022] The locking device may have a latch adapted to employ a first locking position and a second locking position. The latch may be adapted to employ a third locking position.

[0023] The locking device may have a latch adapted to be in a first locked position, a second locked position, and a third locked position. The locking device may have a latch adapted to be in the second locked position and the third locked position. The locking device may have a latch adapted to be in the first locked position and the third locked position. The latch may also be in an unlocked position.

[0024] A latch can be connected to a limiting plate. In the first locked position, when the limiting plate is in the first limiting plate position, the latch can abut against the limiting block of the road paver with its first surface, particularly against the limiting block of the rotating device. As a result, rotation of the limiting plate in the direction of the minimum limiting plate position is prevented by the latch. In the second locked position, when the limiting plate is in the second limiting plate position, the latch can abut against the limiting block of the road paver with its second surface, particularly against the limiting block of the rotating device. As a result, rotation of the limiting plate in the direction of the maximum limiting plate position is prevented by the latch.

[0025] The term "stop" can refer to a component or surface that can contact the latch, thereby restricting the movement of the latch in at least one direction.

[0026] The latch can be adapted to employ a third locking position. In the third locking position, when the limiting plate is in the third limiting plate position, the latch can abut against the limiting block of the road paver with its third surface, particularly against the limiting block of the rotating device. As a result, rotation of the limiting plate in the direction of the maximum limiting plate position can be prevented by the latch.

[0027] The latch can be directly connected to the limiting plate or connected to the limiting plate via at least one intermediate member. The latch can rotate together with the limiting plate around the rotating device.

[0028] A limiting plate protrusion can be attached to a limiting plate. The limiting plate protrusion can form a limiting stop for the latch. In a first locked position, the latch can abut against the limiting stop of the limiting plate protrusion with its surface facing away from the limiting plate. In a third locked position, the latch can abut against the limiting stop of the limiting plate protrusion with its surface facing away from the limiting plate. In both the first and third locked positions, the latch can abut against the same limiting stop of the limiting plate protrusion with the same surface facing away from the limiting plate. The latch may have a protrusion in the thickness direction. In a second locked position, the latch can abut against the limiting stop of the limiting plate protrusion with its other surface (particularly the surface of the latch protrusion facing away from the rotating device).

[0029] A latch can be attached to components of a road paver, particularly the rotating mechanism. In a first locked position, when the limiting plate is in the first limiting plate position, the latch can abut against the limiting stop of the limiting plate with its first surface. As a result, rotation of the limiting plate in the direction of the minimum limiting plate position is prevented by the latch. In a second locked position, when the limiting plate is in the second limiting plate position, the second surface of the latch can abut against the limiting stop of the limiting plate. As a result, rotation of the limiting plate in the direction of the maximum limiting plate position is prevented by the latch.

[0030] In the third locked position, when the limiting plate is in the third limiting plate position, the latch can abut against the limiting stop of the limiting plate with its third surface. As a result, rotation of the limiting plate in the direction of the maximum limiting plate position can be prevented by the latch.

[0031] The locking device can be adapted to be in the unlocked position. When the locking device is in the unlocked position, the limiting plate can rotate freely around the rotating device between the minimum limiting plate position and the maximum limiting plate position.

[0032] The latch can be held in the first, second, and / or third locked positions by its own weight. The latch can be held in the first and second locked positions by its own weight. The latch can be held in the unlocked position by its own weight.

[0033] The third locking position can be different from the first and second locking positions.

[0034] The limiting plate assembly may have additional limiting plates that are not suitable for pivoting. Non-pivotable limiting plates may be designed to be laterally movable. The limiting plate assembly may have two additional non-pivotable limiting plates.

[0035] The rotating device can be attached to a road paver. The rotating device can be attached to a non-pivotable limit plate. The rotating device can be attached to a non-pivotable, movable limit plate.

[0036] The rotating mechanism can be configured as a hinge. The rotating mechanism allows the limiting plate to rotate about a vertical axis. The rotating mechanism can consist of a first cylinder and a second cylinder. Both cylinders can extend vertically. The second cylinder can be a hollow cylinder. The first cylinder can be arranged within this hollow cylinder. The two cylinders can be adjusted so that they can rotate relative to each other. The first cylinder or the second cylinder can be connected to the limiting plate. The other cylinder of the first cylinder or the second cylinder can be connected to a component of the road paver, particularly a component of the limiting plate assembly, especially the non-pivoting limiting plate of the limiting plate assembly.

[0037] The first and second cylinders allow the limiting plate to rotate relative to the rest of the limiting plate assembly.

[0038] The limiting plate assembly includes a pivoting device adapted to rotate the limiting plate about the rotating device, the pivoting device including a hydraulic cylinder and / or an electric actuator. The hydraulic cylinder is adapted to extend and retract the limiting plate assembly. The road paver may have a hydraulic cylinder adapted to rotate the limiting plate about the rotating device. The road paver may have an electric actuator adapted to rotate the limiting plate about the rotating device. Rotation of the limiting plate about the rotating device can be performed manually. Rotation of the limiting plate about the rotating device can be caused by paving material, particularly when the paving material is conveyed toward the limiting plate via a lateral distribution device.

[0039] The latch is bent in the first locked position. This prevents the limit plate from rotating in the direction of the minimum limit plate position. The latch is bent in the third locked position. This prevents the limit plate from rotating in the direction of the maximum limit plate position. The latch is pressed in the second locked position. This prevents the limit plate from rotating in the direction of the maximum limit plate position.

[0040] The latch can be adjusted according to the latch described in the third aspect of this invention. The latch can be a first latch. The locking device can include a second latch. The second latch can be adapted in the same way as the first latch. The second latch can be adjusted according to the latch described in the third aspect of this invention. The second latch can be vertically arranged below the first latch. The second latch can be vertically arranged above the first latch. The second latch can be adapted to employ second and third locking positions, particularly simultaneously with the first latch. The second latch can be adapted to employ first, second, and third locking positions, particularly simultaneously with the first latch.

[0041] Road pavers, especially those with rotating mechanisms, may have a second limit stop. This second limit stop may interact with a second latch. The second latch may be connected to a limit plate.

[0042] In the first locked position of the second latch, when the limiting plate is in the first limiting plate position, the first surface of the second latch can abut against the second limiting stop. As a result, the second latch can prevent the limiting plate from rotating in the direction of the minimum limiting plate position.

[0043] In the second locked position of the second latch, when the limiting plate is in the second limiting plate position, the second surface of the latch can abut against the second limiting stop. As a result, the second latch can prevent the limiting plate from rotating in the direction of the maximum limiting plate position.

[0044] In the third locked position of the second latch, when the limiting plate is in the third limiting plate position, the third surface of the latch can abut against the second limiting stop. As a result, the second latch can prevent the limiting plate from rotating in the direction of the maximum limiting plate position.

[0045] The second latch can be adapted to use only the second and third locked positions. The second latch can also be adapted to use the unlocked position. The second limit stop can be adjusted so that the second latch can only be used in the second and third locked positions.

[0046] The first latch may have an elongated hole. The first latch may be attached to the limiting plate via a fastener (especially a screw or bolt) passing through the elongated hole. The second latch may have an elongated hole. The second latch may be attached to the limiting plate via a fastener (especially a screw or bolt) passing through the elongated hole.

[0047] The limiting plate assembly may include a control device. The control device may be configured to rotate the limiting plate about the rotating device. The control device may be configured to move the limiting plate to a first, second, and / or third limiting plate position. The control device may be configured to move the latch to an unlocked position. The control device may be configured to move the latch to a first, second, and / or third locked position.

[0048] The second aspect of this invention relates to a road paver including a screed assembly. The road paver can move along the paving direction during the paving of paving material. The width of the screed assembly can vary. The width of the screed assembly can represent the extension of the screed assembly orthogonal to the paving direction. The paver includes a lateral distribution device. The lateral distribution device is adapted to distribute paving material laterally along the paving direction. The lateral distribution device can be a screw conveyor. The road paver has a first limiting plate assembly. The first limiting plate assembly can be configured according to the first aspect of this invention. The first limiting plate assembly is arranged in front of the lateral distribution device along the paving direction. The lateral distribution device is arranged in front of the screed assembly along the paving direction.

[0049] The first limiting plate assembly can be arranged on a first side of the road paver, for example, the left side when viewed along the paving direction. The road paver may have a second limiting plate assembly. The second limiting plate assembly can be configured according to the first aspect of the present invention. The second limiting plate assembly can be arranged on a second side opposite to the first side, for example, the right side of the road paver when viewed along the paving direction. The first and second limiting plate assemblies can constitute a limiting plate device. The limiting plate device may also have another non-pivotable limiting plate. The limiting plate device may also include two additional non-pivotable limiting plates. The limiting plate device may include a hydraulic cylinder adapted to pivot the pivotable limiting plates of the first and second limiting plate assemblies. The limiting plate device may have an electric actuator adapted to pivot the pivotable limiting plates of the first and second limiting plate assemblies.

[0050] The road paver may have a control device. The control device may be configured to rotate a limit plate about a rotating mechanism. The control device may be configured to move the limit plate to a first, second, and / or third limit plate position. The control device may be configured to move a latch to an unlocked position. The control device may be configured to move a latch to a first, second, and / or third locked position.

[0051] A third aspect of this invention relates to a locking mechanism for a pivotable component of construction machinery, particularly for a limiting plate assembly according to a first aspect of this invention. The locking mechanism includes at least one locking member. The locking member has a first limiting stop, a second limiting stop, and a third limiting stop. The limiting stops are adjustable to a surface. The locking mechanism also includes at least one latch extending substantially along an axial direction between a first distal end and a second distal end. The latch may have an elongated hole. The elongated hole may extend along the axial direction of the latch, particularly arranged parallel to the axial direction. The latch may be rotatably attached to the pivotable component via the elongated hole by means of a fastener (particularly a screw or bolt). The fastener may be movable within the elongated hole. This allows the latch to move relative to the pivotable component. The latch may have a protrusion at the first distal end along a thickness direction. The thickness direction may extend orthogonally to the axial direction. The latch may be L-shaped. The protrusion may represent an L-shaped leg. Another L-shaped leg may be formed by the axial extension of the latch. The protrusion may have an inclined surface on the side opposite to the second distal end.

[0052] The latch can be moved to a first locked position. The latch can be moved to a second locked position. The latch can be moved to a third locked position. In the first locked position, the protruding surface facing the second distal end of the latch abuts against a first stop. In the second locked position, the inclined surface of the protruding surface abuts against a second stop. In the third locked position, the protruding surface facing the pivotable member abuts against a third stop. The first locked position may differ from the second and / or third locked positions. The second locked position may differ from the first and / or third locked positions.

[0053] The inclined surface of the protrusion can extend at an angle to the axial direction of the latch, particularly between 50 and 70 degrees, and especially 60 degrees. The inclined surface of the protrusion can extend at an angle to the thickness direction of the latch, particularly between 20 and 40 degrees, and especially 30 degrees.

[0054] The second and third limit blocks can be the same limit block. The second and third limit blocks can be formed from the same surface.

[0055] A locking component can be attached to the rotating mechanism. A pivotable component can be attached to the rotating mechanism. The pivotable component can rotate about the rotating mechanism. The locking component can be adjusted so that it cannot rotate about the rotating mechanism.

[0056] When the latch is in the first locked position, the pivotable component can move between a first rotation angle and a second rotation angle. When the latch is in the second locked position, the pivotable component can move between a third rotation angle and a fourth rotation angle. When the latch is in the third locked position, the pivotable component can move between a fourth rotation angle and a fifth rotation angle.

[0057] The first rotation angle can correspond to the maximum rotation position. The rotating device or construction machinery can be adjusted so that the pivotable component cannot pivot beyond the maximum rotation position. The fifth rotation angle can correspond to the minimum rotation position. The rotating device or construction machinery can be adjusted so that the pivotable component cannot pivot beyond the minimum rotation position. The rotating device or construction machinery can be adjusted so that the pivotable component can pivot between the minimum and maximum rotation positions.

[0058] The first rotation angle can be the same as the second rotation angle. When the latch is in the first locked position, the pivotable component can be fixed at the first or second rotation angle, particularly the maximum rotation position. The fourth rotation angle can be the same as the fifth rotation angle. When the latch is in the third locked position, the pivotable component can be fixed at the fourth or fifth rotation angle, particularly the minimum rotation position.

[0059] When the latch is in the first locked position, the fastener can be located at the end of the elongated hole facing the second distal end of the latch. When the latch is in the second locked position, the fastener can be located at the end of the elongated hole facing the first distal end of the latch. When the latch is in the third locked position, the fastener can be located at the end of the elongated hole facing the second distal end of the latch. When the latch is in the unlocked position, the fastener can be located at the end of the elongated hole facing the second distal end of the latch.

[0060] The latch can be a first latch. The locking mechanism can have a second latch. The second latch can be adapted in the same way as the first latch.

[0061] The locking component may be a first locking component. The locking motion device may include a second locking component. The second locking component may be attached to the rotating device. The second locking component may be adjusted so that it cannot rotate about the rotating device. The second locking component has a first limit stop, a second limit stop, and a third limit stop. Alternatively, the second locking component may have only one limit stop. The second locking component may be integrally formed with the first locking component.

[0062] The second latch is movable to first, second, and third locked positions. The second latch is also movable to an unlocked position. In the first locked position, the surface of the second latch's protrusion facing the second distal end of the second latch abuts against a first limiting stop of the second locking member. In the second locked position, the inclined surface of the second latch's protrusion abuts against a second limiting stop of the second locking member. In the third locked position, the surface of the second latch's protrusion facing the pivotable member abuts against a third limiting stop of the second locking member.

[0063] Alternatively, the second latch can only be moved to the second and third locked positions and the unlocked position. In the second locked position, the inclined surface of the protrusion of the second latch abuts against the limiting stop of the second locking member. In the third locked position, the surface of the protrusion of the second latch facing the pivotable member abuts against the limiting stop of the second locking member. When the first latch is in the first locked position, the second latch can be in the unlocked position.

[0064] A protrusion may be attached to a pivotable component. The protrusion may form a locking stop for the latch. The protrusion may be L-shaped. In a first locked position, the latch may abut against the locking stop of the protrusion with its surface facing away from the pivotable component. In a third locked position, the latch may abut against the locking stop of the protrusion with its surface facing away from the pivotable component. In both the first and third locked positions, the latch may abut against the same locking stop of the protrusion with the same surface facing away from the pivotable component. In a second locked position, the latch may abut against the locking stop of the protrusion of the pivotable component with another surface (particularly the surface of the latch's protrusion facing the second distal end).

[0065] A road paver, particularly according to a second aspect of the present invention, includes a screed assembly. The road paver is movable along the paving direction during the paving of paving material. The road paver includes a lateral distribution device, particularly a screw conveyor. The road paver has a pivotable component. This pivotable component is arranged in front of the lateral distribution device along the paving direction. The road paver includes a locking motion device according to a third aspect of the present invention. The locking motion device is adapted to fix the pivotable component in different positions or restrict the rotation of the pivotable component.

[0066] The locking mechanism may include a control device. The control device may be configured to rotate a pivotable component. The control device may be configured to shift the latch to an unlocked position. The control device may be configured to shift the latch to a first, second, and / or third locked position.

[0067] The limiting plate assembly according to the first aspect of the present invention can be used in a road paver according to the second aspect of the present invention and / or in conjunction with the method steps of the method according to the fifth aspect of the present invention. The limiting plate assembly according to the first aspect of the present invention can be used in conjunction with a locking motion device according to the third aspect of the present invention. The limiting plate assembly according to the first aspect of the present invention and the locking motion device according to the third aspect of the present invention can be used according to the fourth aspect of the present invention. The locking motion device according to the third aspect of the present invention can be used in a road paver according to the second aspect of the present invention and / or in conjunction with the method steps of the method according to the fifth aspect of the present invention.

[0068] The terms "first," "second," "third," and "fourth" should be understood as names of specific elements or components only, and do not necessarily imply a specific order of the components or components. For example, the presence of a second component does not necessarily imply the presence of a first component, and vice versa. Attached Figure Description

[0069] The present invention will now be described in more detail with reference to the embodiments.

[0070] Figure 1 A schematic side view of a road paver with a limit plate assembly according to an embodiment of the present invention is shown.

[0071] Figure 2 A schematic top view of a road paver with a limit plate assembly according to an embodiment of the present invention is shown.

[0072] Figure 3 It shows Figure 2 A schematic front view of the cross-section of the limiting plate device.

[0073] Figure 4 A schematic top view of a limiting plate assembly according to an embodiment of the present invention is shown.

[0074] Figure 5 A detailed view of a latch according to an embodiment of the present invention is shown.

[0075] Figure 6 A detailed view of a locking device in the unlocked position according to an embodiment of the present invention is shown.

[0076] Figure 7 It shows Figure 5 A detailed view of the locking device in the first locking position.

[0077] Figure 8 It shows Figure 5 A detailed view of the locking device in the second locking position.

[0078] Figure 9 It shows Figure 5 A detailed view of the locking device in the third locking position. Detailed Implementation

[0079] Figure 1 A road paver 1 according to an embodiment of the present invention is shown. The road paver 1 includes a tractor unit 2 and a screed assembly 3. The screed assembly 3 is arranged behind the tractor unit 2 relative to the paving direction 100. Figure 1In this configuration, the screed assembly 3 is only schematically shifted. A material hopper 4 for receiving paving material is positioned in the front region of the road paver 1. The paving material (also referred to as paving feed) is transported by the material transport device of the tractor 2 against the paving direction 100 to the rear and provided to the screed assembly 3. A lateral distribution device 5 can be provided in the rear region of the tractor 2, which distributes the paving material in a direction orthogonal to the paving direction 100 to the front of the screed assembly 3. A limiting plate device 6 with at least one limiting plate assembly 7 is arranged in front of the lateral distribution device 5 along the paving direction 100. The limiting plate device 6 prevents the paving material from deviating along the paving direction 100.

[0080] Figure 2 A top view of a road paver 1 according to an embodiment of the present invention is shown. The screed assembly 3 includes a bottom screed 8. The bottom screed has a bottom screed operating width 201. The bottom screed operating width 201 can be an extension of the bottom screed 8 in a transverse direction 200. The transverse direction 200 extends orthogonally to the paving direction 100. The screed assembly 3 may also have an extension screed 9. The total operating width 202 is composed of the bottom screed 8 and the extension screed 9. The extension screed 9 is adaptable to move relative to the bottom screed 8 in the transverse direction 200. This allows the total operating width 202 to be varied. The screed assembly 3 may also have side guards 10. The side guards 10 extend specifically along the paving direction 100 and prevent paving material from distributing in areas laterally outside the screed assembly 3.

[0081] The lateral distribution device 5 is arranged in front of the screed assembly 3 along the paving direction 100. The limiting plate device 6 is arranged in front of the lateral distribution device 5 along the paving direction 100. The limiting plate device 6 has a limiting plate assembly 7. The limiting plate assembly 7 has a pivotable limiting plate 11. The limiting plate 11 can rotate about the rotating device 12, particularly about the vertical axis.

[0082] The limiting plate device 6 may have a bottom limiting plate 13. The bottom limiting plate 13 extends substantially in the lateral direction 200. The limiting plate device 6 may also include an extendable limiting plate 14. The extendable limiting plate 14 is movable relative to the bottom limiting plate 13 in the lateral direction 200 via a traversing device 15 (e.g., a hydraulic cylinder or an electric actuator). The laterally extendable limiting plate 14 can be used to change the effective width of the limiting plate device 6. The limiting plate device 6 may have an intermediate limiting plate 16. The intermediate limiting plate 16 may be arranged between the bottom limiting plate 13 and the extended limiting plate 14. The extendable limiting plate 14 may be attached to either the bottom limiting plate 13 or the intermediate limiting plate 16. The traversing device 15 may be attached to either the bottom limiting plate 13 or the intermediate limiting plate 16.

[0083] The rotating device 12 can be attached to the bottom limiting plate 13, the extendable limiting plate 14, or the intermediate limiting plate 16. Therefore, the pivotable limiting plate 11 can rotate relative to the bottom limiting plate 13, the extendable limiting plate 14, or the intermediate limiting plate 16.

[0084] The limiting plate device 6 may have two limiting plate assemblies 7, such as Figure 2 As shown. The two limiting plate assemblies 7 can advantageously be arranged on the left and right sides of the road paver 1, respectively. The limiting plate device 6 can have two extendable limiting plates 14, two traverse devices 15, and two intermediate limiting plates 16, as shown. Figure 2 As shown. Advantageously, these can be arranged on the left and right sides of the road paver 1, respectively.

[0085] Figure 3 It shows Figure 2 A front view of the limiting plate device 6. The limiting plate device 6 includes a bottom limiting plate 13, and an intermediate limiting plate 16 laterally attached to the bottom limiting plate 13 in a lateral direction 200. A traversing device 15 is attached to the intermediate limiting plate 16 and adapted to move an extendable limiting plate 14 adjacent to the intermediate limiting plate 16 in the lateral direction 200. A pivotable limiting plate 11 is attached to the extendable limiting plate 14 via a rotating device 12. The rotating device 12 is adapted to rotate the pivotable limiting plate 11 about a vertical axis.

[0086] Figure 4 A schematic top view of a limiting plate assembly 7 according to an embodiment of the present invention is shown. In this embodiment, the limiting plate assembly 7 is directly attached to the bottom limiting plate 13. A pivotable limiting plate 11 is attached to the bottom limiting plate 13 via a rotating device 12. The pivotable limiting plate 11 can rotate about the rotating device 12 between a minimum limiting plate position 17 and a maximum limiting plate position 18.

[0087] Figure 4 The diagram shows a pivotable stop plate 11 in three positions: a first stop plate position 19, a second stop plate position 20, and a third stop plate position 21. The first stop plate position 19 corresponds to the maximum stop plate position 18. The third stop plate position 21 corresponds to the minimum stop plate position 17. In the first stop plate position 19, the stop plate 11 has a first angle 22 relative to the paving direction 100. The first angle 22 can be 90 degrees. In the second stop plate position 20, the stop plate 11 has a second angle 23 relative to the paving direction 100. The second angle 23 can be 120 degrees. In the third stop plate position 21, the stop plate 11 has a third angle 24 relative to the paving direction 100. The third angle 24 can be 180 degrees. In the third stop plate position 21, the stop plate 11 can extend parallel to the paving direction 100.

[0088] The limiting plate assembly 7 also has a locking device 25 with a first latch 26. The locking device 25 may also have a second latch 27.

[0089] Figure 5 The first latch 26 is shown in detail. The latch 26 has a latch base 28 that extends substantially along an axial direction 300 between a first distal end 29 and a second distal end 30. The material thickness of the latch 26 is measured along a thickness direction 400. The thickness direction 400 of the latch 26 is the direction in which the latch 26 has the minimum extension. The latch 26 has a protrusion 31 at the first distal end 29 in the thickness direction 400. The material thickness of the protrusion 31 is greater than the material thickness of the latch base 28. The protrusion 31 has an inclined surface 32 on the side opposite to the second distal end 30. The inclined surface 32 extends at an angle to the axial direction 300, wherein the angle is not 90 degrees. The inclined surface 32 extends at an angle to the thickness direction 400. The surface 33 of the protrusion 31 facing the second distal end 30 extends orthogonally to the axial direction 300. The latch 26 also includes an elongated hole 34. The elongated hole 34 is arranged in the latch base 28 and can extend along the axial direction 300. The second latch 27 can be adapted in the same way as the first latch 26.

[0090] Figures 6 to 9 Detailed views of a locking device 25 in an unlocked position and three locked positions according to an embodiment of the present invention are shown. A first latch 26 and a second latch 27 are respectively connected to a pivotable limiting plate 11 via screws 35 guided through an elongated hole 34. In the illustrated embodiment, latches 26 and 27 are not directly connected to the limiting plate 11, but are indirectly connected via intermediate members 36. Intermediate members 36 may be welded to the limiting plate 11. Furthermore, intermediate members 36 are connected to, for example, a component of the rotating device 12, for example, welded to it. This component, and therefore the limiting plate 11, can rotate about the rest of the rotating device 12. The limiting plate 11 also has two limiting plate protrusions 37 connected to, for example, the limiting plate 11, and respectively arranged below the intermediate members 36.

[0091] The locking device 25 further includes a first locking member 38. The first locking member 38 has a first limiting stop 39, a second limiting stop 40, and a third limiting stop 41. The second limiting stop 40 and the third limiting stop 41 may be the same limiting stop. The term "limiting stop" may refer to a component or surface that can contact the latch 26, thereby restricting movement of the latch 26 in at least one direction. The locking device 25 also includes a second locking member 42. The second locking member 42 has a limiting stop 43. The first locking member 38 may be integrally formed with the second locking member 42. The first locking member 38 and the second locking member 42 are connected to the rotating device 12. The first locking member 38 and the second locking member 42 do not rotate about the rotating device 12. The limiting plate 11 and the first latch 26 and the second latch 27 rotate relative to the first locking member 38 and the second locking member 42.

[0092] Figure 6 The locking device 25 in the unlocked position is shown. The two latches 26, 27 can be in an inclined position away from the rotating device 12. The two latches 26, 27 can rest on their respective limiting plate protrusions 37. The two latches 26, 27 are held in the unlocked position by their own weight. Screws 35 are arranged at the ends of the respective elongated holes 34 of the first and second latches 26, 27 facing the second distal end 30. The limiting plate 11 can rotate about the rotating device 12 between a minimum limiting plate position 17 and a maximum limiting plate position 18.

[0093] Figure 7 The locking device 25 is shown in the first locked position. The limiting plate 11 is in the first limiting plate position 19. The first latch 26 is tilted in the direction of the rotating device 12. The surface 33 of the protrusion 31 of the first latch 26 facing the second distal end 30 abuts against the first limiting block 39 of the first locking member 38. The first limiting block 39 has a surface that extends at an angle to the horizontal plane and at an angle to the vertical plane. Due to the interaction between the first latch 26 and the first locking member 38, rotation of the limiting plate 11 in the direction of the minimum limiting plate position 17 is prevented.

[0094] exist Figure 7 In the illustrated embodiment, the second latch 27 is in the unlocked position. A screw 35 of the first latch 26 is disposed at the end of the elongated hole 34 of the first latch 26, the end facing the second distal end 30 of the first latch 26. A screw 35 of the second latch 27 is disposed at the end of the elongated hole 34 of the second latch 27, the end facing the second distal end 30 of the second latch 27.

[0095] Alternatively, the second latch 27 can also be in the first locked position. In this case, the second locking member 42 has the same shape as the first locking member 38.

[0096] Figure 8The locking device 25 in the second locked position is shown. The limiting plate 11 is in the second limiting plate position 20. The two latches 26, 27 are inclined along the direction of the rotating device 12. The screw 35 of the first latch 26 is disposed at the end of the elongated hole 34 of the first latch 26, the end of which faces the first distal end 29 of the first latch 26. The screw 35 of the second latch 27 is disposed at the end of the elongated hole 34 of the second latch 27, the end of which faces the first distal end 29 of the second latch 27.

[0097] The inclined surface 32 of the first latch 26 abuts against the second limiting stop 40 of the first locking member 38. The surface 33 of the protrusion 31 of the first latch 26 facing the second distal end 30 may abut against the limiting plate protrusion 37 assigned to the first latch 26.

[0098] The inclined surface 32 of the second latch 27 abuts against the limiting stop 43 of the second locking member 42. The surface 33 of the protrusion 31 of the second latch 27 facing the second distal end 30 may abut against the limiting plate protrusion 37 assigned to the second latch 27.

[0099] Rotation of the limiting plate 11 in the direction of the maximum limiting plate position 18 is blocked by the interaction between the first latch 26 and the first locking member 38 and (if applicable) the limiting plate protrusion 37. Rotation of the limiting plate 11 in the direction of the maximum limiting plate position 18 is blocked by the interaction between the second latch 27 and the second locking member 42 and (if applicable) the limiting plate protrusion 37.

[0100] Figure 9 The locking device 25 is shown in the third locked position. The limiting plate 11 is in the third limiting plate position 21. The two latches 26, 27 are inclined along the direction of the rotating device 12. The screw 35 of the first latch 26 is disposed at the end of the elongated hole 34 of the first latch 26, which faces the second distal end 30 of the first latch 26. The screw 35 of the second latch 27 is disposed at the end of the elongated hole 34 of the second latch 27, which faces the second distal end 30 of the second latch 27.

[0101] The surface of the first latch 26 facing the limiting plate 11 abuts against the third limiting stop 41 of the first locking member 38. The surface of the first latch 26 away from the limiting plate 11 may abut against the limiting plate protrusion 37 assigned to the first latch 26.

[0102] The surface of the second latch 27 facing the limiting plate 11 abuts against the limiting stop 43 of the second locking member 42. The surface of the second latch 27 away from the limiting plate 11 may abut against the limiting plate protrusion 37 assigned to the second latch 27.

[0103] Rotation of the limiting plate 11 in the direction of the maximum limiting plate position 18 is blocked by the interaction between the first latch 26 and the first locking member 38 and (if applicable) the limiting plate protrusion 37. Rotation of the limiting plate 11 in the direction of the maximum limiting plate position 18 is blocked by the interaction between the second latch 27 and the second locking member 42 and (if applicable) the limiting plate protrusion 37.

Claims

1. A limiting plate assembly (7) for a road paver (1), characterized in that, include Limit plate (11), Rotating device (12), Locking device (25), The limiting plate (11) is attached to a component of the road paver (1) via the rotating device (12). The limiting plate (11) can rotate around the rotating device (12) between the minimum limiting plate position (17) and the maximum limiting plate position (18). The locking device (25) is adapted to be in a first locking position and a second locking position. When the limiting plate (11) is in the first limiting plate position (19), the locking device (25) is adapted to prevent the limiting plate (11) from rotating about the rotating device (12) in the direction of the minimum limiting plate position (17) in the first locking position, and when the limiting plate (11) is in the second limiting plate position (20), the locking device (25) is adapted to prevent the limiting plate (11) from rotating about the rotating device (12) in the direction of the maximum limiting plate position (18) in the second locking position.

2. The limiting plate assembly according to claim 1, wherein, The locking device (25) is adapted to employ a third locking position, wherein when the limiting plate (11) is in the third limiting plate position (21), the locking device (25) is adapted to prevent the limiting plate (11) from rotating about the rotating device (12) in the direction of the maximum limiting plate position (18).

3. The limiting plate assembly according to claim 2, wherein, When the limiting plate (11) is in the fourth limiting plate position, the locking device (25) is adapted to prevent the limiting plate (11) from rotating about the rotating device (12) in the direction of the minimum limiting plate position (17) in the second locking position.

4. The limiting plate assembly according to claim 2, wherein, The limiting plate (11) at the first limiting plate position (19) forms a first angle (22) with the paving direction (100) of the road paver (1). When the locking device (25) is in the second locking position, the limiting plate (11) can rotate relative to the paving direction (100) of the road paver (1) between a second angle (23) and a third angle (24). Wherein, the limiting plate (11) at the third limiting plate position (21) forms a third angle (24) with the paving direction (100) of the road paver (1). The second angle (23) is located between the first angle (22) and the third angle (24).

5. The limiting plate assembly according to claim 3, wherein, The limiting plate (11) at the first limiting plate position (19) forms a first angle (22) with the paving direction (100) of the road paver (1). When the locking device (25) is in the second locking position, the limiting plate (11) can rotate relative to the paving direction (100) of the road paver (1) between a second angle (23) and a third angle (24). Wherein, the limiting plate (11) at the third limiting plate position (21) forms a third angle (24) with the paving direction (100) of the road paver (1). The second angle (23) is located between the first angle (22) and the third angle (24).

6. The limiting plate assembly according to any one of claims 1 to 5, wherein, The locking device (25) includes a latch (26) adapted to be in a first locking position and a second locking position, wherein the latch (26) is held in the first locking position and the second locking position.

7. The limiting plate assembly according to claim 6, wherein, The latch (26) is held in the first and second locked positions by its own weight.

8. The limiting plate assembly according to claim 6, wherein, The latch (26) is connected to the limiting plate (11). In the first locking position, when the limiting plate (11) is in the first limiting plate position (19), the latch (26) abuts against the limiting block of the road paver (1) with its first surface (33), so that the latch (26) prevents the limiting plate (11) from rotating in the direction of the minimum limiting plate position (17). And / or, in the second locking position, when the limiting plate (11) is in the second limiting plate position (20), the latch (26) abuts against the limiting block of the road paver (1) with its second surface, such that the latch (26) prevents the limiting plate (11) from rotating in the direction of the maximum limiting plate position (18).

9. The limiting plate assembly according to claim 6, wherein, The latch (26) is adapted to employ a third locking position, wherein, in the third locking position, when the limiting plate (11) is in the third limiting plate position (21), the latch (26) abuts against the limiting block of the road paver (1) with its third surface, such that the latch (26) prevents the limiting plate (11) from rotating in the direction of the maximum limiting plate position (18).

10. The limiting plate assembly according to claim 6, wherein, The latch (26) is connected to a component of the road paver (1). In the first locking position, when the limiting plate (11) is in the first limiting plate position (19), the latch (26) abuts against the limiting block of the limiting plate (11) with its first surface, so that the latch (26) prevents the limiting plate (11) from rotating in the direction of the minimum limiting plate position (17). And / or, in the second locking position, when the limiting plate (11) is in the second limiting plate position (20), the latch (26) abuts against the limiting block of the limiting plate (11) with its second surface, such that the latch (26) prevents the limiting plate (11) from rotating in the direction of the maximum limiting plate position (18).

11. The limiting plate assembly according to any one of claims 1 to 5, wherein, The locking device (25) is adapted to be in an unlocked position, wherein when the locking device (25) is in the unlocked position, the limiting plate (11) can rotate freely around the rotating device (12) between the minimum limiting plate position (17) and the maximum limiting plate position (18).

12. The limiting plate assembly according to any one of claims 1 to 5, wherein, The limiting plate assembly (7) includes a pivoting device, wherein the pivoting device is adapted to rotate the limiting plate (11) about the rotating device (12), wherein the pivoting device includes a hydraulic cylinder and / or an electric actuator.

13. A road paver (1), characterized in that, include: Ironing flat panel assembly (3), A lateral distribution device (5) adapted to distribute paving material laterally along the paving direction (100) of the road paver (1), and The limiting plate assembly (7) according to any one of claims 1 to 12, The limiting plate assembly (7) is arranged in front of the transverse distribution device (5) along the paving direction (100).

14. A locking motion device for a pivotable component of construction machinery, characterized in that, The locking motion device includes At least one locking component (38) having a first limiting stop (39), a second limiting stop (40) and a third limiting stop (41), and At least one latch (26) extends substantially along an axial direction (300) between a first distal end (29) and a second distal end (30). The latch (26) has an elongated hole (34), and the latch (26) is rotatably attached to a pivotable component via a fastener passing through the elongated hole (34). The latch (26) has a protrusion (31) along the thickness direction at the first distal end (29). The protrusion (31) has an inclined surface (32) on the side opposite to the second distal end (30). The latch (26) can be moved to a first locking position, a second locking position, and a third locking position. In the first locking position, the surface (33) of the protrusion (31) facing the second distal end (30) abuts against the first limiting block (39). In the second locking position, the inclined surface (32) abuts against the second limiting block (40), and In the third locking position, the surface of the protrusion (31) facing the pivotable component abuts against the third limiting block (41).

15. The locking motion device according to claim 14, wherein, When the latch (26) is in the first locked position, the pivotable component can move between a first rotation angle and a second rotation angle. When the latch (26) is in the second locked position, the pivotable component can move between a third rotation angle and a fourth rotation angle, and / or When the latch is in the third locked position, the pivotable component can move between the fourth rotation angle and the fifth rotation angle.

16. A locking motion device for use in a limiting plate assembly (7) according to any one of claims 1 to 12, characterized in that, The locking motion device includes At least one locking component (38) having a first limiting stop (39), a second limiting stop (40) and a third limiting stop (41), and At least one latch (26) extends substantially along an axial direction (300) between a first distal end (29) and a second distal end (30). The latch (26) has an elongated hole (34), and the latch (26) is rotatably attached to a pivotable component via a fastener passing through the elongated hole (34). The latch (26) has a protrusion (31) along the thickness direction at the first distal end (29). The protrusion (31) has an inclined surface (32) on the side opposite to the second distal end (30). The latch (26) can be moved to a first locking position, a second locking position, and a third locking position. In the first locking position, the surface (33) of the protrusion (31) facing the second distal end (30) abuts against the first limiting block (39). In the second locking position, the inclined surface (32) abuts against the second limiting block (40), and In the third locking position, the surface of the protrusion (31) facing the pivotable component abuts against the third limiting block (41).

17. The locking motion device according to claim 16, wherein, When the latch (26) is in the first locked position, the pivotable component can move between a first rotation angle and a second rotation angle. When the latch (26) is in the second locked position, the pivotable component can move between a third rotation angle and a fourth rotation angle, and / or When the latch is in the third locked position, the pivotable component can move between the fourth rotation angle and the fifth rotation angle.

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