Locking movement device of limiting plate of road paver

Abstract

The present invention relates to a stop plate assembly for a road paver, the stop plate assembly comprising a stop plate, a rotating device, and a locking device wherein the stop plate is attached to a component of the road paver via the rotating device wherein the stop plate is rotatable about the rotating device between a minimum stop plate position and a maximum stop 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 invention also relates to a locking movement device of a pivotable part and a method for pivoting a limiting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of road paving machines, in particular to a road paving machine having a stop plate assembly, a locking movement device of such a stop plate assembly and a method for pivoting a stop plate of a road paving machine. Background Art

[0002] Road pavers are well known in the prior art. In order to increase the availability of road pavers, screeds with adjustable operating widths have been designed. The working width refers to the width over which the screed distributes the paving material on the surface. For example, EP 2 169 117 A1 discloses a screed with a continuously variable working width. The paving material is distributed transversely in the paving direction of the road paver by means of a distribution screw in front of the screed.

[0003] Adjusting the operating width of the screed also changes the width of the paving material being applied. To prevent excess paving material from stretching in 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 laterally pivotable plates on the outside of the stop plate assembly.

[0004] A stop plate assembly with a pivotable stop plate for a road paver is known from EP 3 988 714 A1. The stop plate is pivoted and held in position via a hydraulic pivoting device. Summary of the invention

[0005] The object of the present invention is to provide a compact and safe locking device for a pivotable component, in particular a pivotable stop plate of a road paver.

[0006] A first aspect of the invention relates to a stop plate assembly for a road paver. The stop plate assembly comprises a stop plate and a rotating device. The stop plate assembly may also comprise further stop plates. The stop plate is attached to a component of the road paver, in particular to a component of the stop plate assembly, via the rotating device. The stop plate can rotate around the rotating device. The rotating device can rotate the stop plate around a vertical axis. The stop plate can pivot horizontally. The stop plate can rotate between a minimum stop plate position and a maximum stop plate position.

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

[0008] The width of the stop plate assembly can be changed by rotating the stop plate. The minimum stop plate position can correspond to the minimum width of the stop plate assembly. The maximum stop plate position can correspond to the maximum width of the stop plate assembly. In the minimum stop plate position, the stop plate can abut against the road paver. In the maximum stop plate position, the stop plate can protrude from the road paver, in particular protrude vertically from the road paver.

[0009] The road paver moves in the paving direction when paving the paving material. In the minimum stop plate position, the stop plate can extend parallel to the paving direction. The rotating device can then be arranged at the front end of the stop plate relative to the paving direction. In the minimum stop plate position, the stop plate can be rotated backwards against the paving direction. In the maximum stop plate position, the stop plate can extend orthogonally to the paving direction.

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

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

[0012] The locking device may be adapted to fix the limit plate in the first locking position at a first limit plate position, in particular a maximum limit plate position.

[0013] The locking device may be adapted to fix the stop plate in a second locking position, in particular a minimum stop plate position.

[0014] The locking device may be adapted to adopt a third locking position. In the third locking position, when the stop plate is in the third stop plate position, the locking device may be adapted to prevent the stop plate from rotating around the rotation device in the direction of the maximum stop plate position.

[0015] The second limit plate position may be located between the minimum limit plate position and the maximum limit plate position. The second limit plate position may be located between the first limit plate position and the third limit plate position. The first limit plate position may correspond to the maximum limit plate position. The third limit plate position may correspond to the minimum limit plate position.

[0016] The locking device may be adapted to fix the limit plate in a third locking position, in particular a minimum limit plate position.

[0017] When the limiting plate is in the fourth limiting plate position, the locking device may be 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 limit plate position may be located between the second limit plate position and the third limit plate position. The fourth limit plate position may correspond to the third limit plate position.

[0019] The locking device may be adapted to limit the rotation of the stop plate around the rotation device within a certain angular range when in the second locking position. The angular range may substantially span an angle of 60 degrees. The angular range may represent a range between 0 and 60 degrees or between 120 and 180 degrees relative to the paving direction.

[0020] In the first stop plate position, the stop plate may be at a first angle to the paving direction of the road paver. When the locking device is in the second locking position, the stop plate may be rotated between a second angle and a third angle relative to the paving direction of the road paver. In the third stop plate position, the stop plate may be at a third angle to the paving direction of the road paver. The second angle may be between the first angle and the third angle.

[0021] The first angle may be approximately 80 to 100 degrees, in particular 90 degrees to the paving direction. The second angle may be approximately 50 to 70 degrees, in particular 60 degrees, or 110 to 130 degrees, in particular 120 degrees, to the paving direction. The second angle may be inclined backwards relative to the paving direction. The third angle may be approximately 0 to 10 degrees, in particular 0 degrees, or 170 to 180 degrees, in particular 180 degrees, to the paving direction. The third angle may be inclined backwards relative to the paving direction.

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

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

[0024] The latch may be connected to the stop plate. In a first locking position, when the stop plate is in the first stop plate position, the latch may abut with a first surface against a stop block of the road paver, in particular against a stop block of the swivel device. As a result, a rotation of the stop plate in the direction of the minimum stop plate position may be prevented by the latch. In a second locking position, when the stop plate is in the second stop plate position, the latch may abut with a second surface against a stop block of the road paver, in particular against a stop block of the swivel device. As a result, a rotation of the stop plate in the direction of the maximum stop plate position may be prevented by the latch.

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

[0026] The latch may be adapted to adopt a third locking position. In the third locking position, the latch may abut with a third surface against a limit stop of the road paver, in particular against a limit stop of the swivel device, when the limit plate is in the third limit plate position. As a result, a rotation of the limit plate in the direction of the maximum limit plate position may be prevented by the latch.

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

[0028] The limit plate protrusion may be attached to the limit plate. The limit plate protrusion may form a limit stop for the latch. In the first locking position, the latch may abut against the limit stop of the limit plate protrusion with the surface facing away from the limit plate. In the third locking position, the latch may abut against the limit stop of the limit plate protrusion with the surface facing away from the limit plate. In the first locking position and the third locking position, the latch may abut against the same limit stop of the limit plate protrusion with the same surface facing away from the limit plate. The latch may have a protrusion in the thickness direction. In the second locking position, the latch may abut against the limit stop of the limit plate protrusion with another surface (in particular, the surface of the protrusion of the latch facing away from the rotating device).

[0029] The latch may be connected to a component of the road paver, in particular to a swivel device. In a first locking position, when the stop plate is in the first stop plate position, the latch may abut with a first surface against a stop block of the stop plate. As a result, a rotation of the stop plate in the direction of the minimum stop plate position may be prevented by the latch. In a second locking position, when the stop plate is in the second stop plate position, a second surface of the latch may abut against a stop block of the stop plate. As a result, a rotation of the stop plate in the direction of the maximum stop plate position may be prevented by the latch.

[0030] In the third locking position, when the limit plate is located at the third limit plate position, the latch can abut the limit stopper of the limit plate with the third surface. As a result, the rotation of the limit plate in the direction of the maximum limit plate position can be prevented by the latch.

[0031] The locking device may be adapted to adopt an unlocked position. When the locking device is in the unlocked position, the stop plate may freely rotate about the rotation device between a minimum stop plate position and a maximum stop plate position.

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

[0033] The third locked position may be different from the first locked position and the second locked position.

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

[0035] The swivel device may be attached to the road paver. The swivel device may be attached to a non-pivotable stop plate. The swivel device may be attached to a non-pivotable, movable stop plate.

[0036] The rotating device can be formed as a hinge. The rotating device can rotate the limit plate around a vertical axis. The rotating device can consist of a first cylinder and a second cylinder. The two cylinders can extend in a vertical direction. The second cylinder can be a hollow cylinder. The first cylinder can be arranged in the 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 limit plate. The other cylinder of the first cylinder or the second cylinder can be connected to a component of the road paver, in particular a component of the limit plate assembly, in particular a non-pivoting limit plate of the limit plate assembly.

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

[0038] The road paver may have a hydraulic cylinder adapted to extend and retract the stop plate assembly. The road paver may have a hydraulic cylinder adapted to rotate the stop plate around the rotating device. The road paver may have an electric drive adapted to rotate the stop plate around the rotating device. The rotation of the stop plate around the rotating device may be performed manually. The rotation of the stop plate around the rotating device may be caused by the paving material, in particular when the paving material is conveyed towards the stop plate by the lateral distribution device.

[0039] The latch is bent in the first locking position. This can prevent the limit plate from rotating in the direction of the minimum limit plate position. The latch is bent in the third locking position. This can prevent the limit plate from rotating in the direction of the maximum limit plate position. The latch is compressed in the second locking position. This can prevent the limit plate from rotating in the direction of the maximum limit plate position.

[0040] The latch may be adapted according to the latch described in the third aspect of the invention. The latch may be a first latch. The locking device may comprise a second latch. The second latch may be adapted identically to the first latch. The second latch may be adapted according to the latch described in the third aspect of the invention. The second latch may be arranged vertically below the first latch. The second latch may be arranged vertically above the first latch. The second latch may be adapted to adopt a second and a third locking position, in particular simultaneously with the first latch. The second latch may be adapted to adopt a first, a second and a third locking position, in particular simultaneously with the first latch.

[0041] The road paver, in particular the rotary device, may have a second limit stop. The second limit stop may interact with a second latch. The second latch may be connected to a limit plate.

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

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

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

[0045] The second latch may be adapted to adopt only the second and third locked positions. The second latch may be adapted to adopt the unlocked position. The second limit stop may be adjusted so that the second latch may adopt only the second and third locked positions.

[0046] The first latch may have an elongated hole. The first latch may be attached to the stop plate via a fastener, in particular a screw or a bolt, through the elongated hole. The second latch may have an elongated hole. The second latch may be attached to the stop plate via a fastener, in particular a screw or a bolt, through the elongated hole.

[0047] The stop plate assembly may include a control device. The control device may be configured to rotate the stop plate around the rotation device. The control device may be configured to move the stop plate to a first, second and / or third stop 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] A second aspect of the invention relates to a road paver comprising a screed assembly. The road paver can move along a paving direction during paving of paving material. The width of the screed assembly can vary. The width of the screed assembly can represent an extension of the screed assembly orthogonal to the paving direction. The paver comprises a lateral distribution device. The lateral distribution device can be suitable for distributing paving material transversely to the paving direction. The lateral distribution device can be a screw conveyor. The road paver has a first limit plate assembly. The first limit plate assembly can be configured according to the first aspect of the invention. The first limit plate assembly is arranged in front of the lateral distribution device in the paving direction. The lateral distribution device is arranged in front of the screed assembly in the paving direction.

[0049] The first limit plate assembly can be arranged on a first side of the road paver, for example, on the left side as viewed in the paving direction. The road paver can have a second limit plate assembly. The second limit plate assembly can be configured according to the first aspect of the present invention. The second limit plate assembly can be arranged on a second side opposite to the first side, for example, on the right side of the road paver as viewed in the paving direction. The first limit plate assembly and the second limit plate assembly can constitute a limit plate device. The limit plate device can also have another limit plate that is not pivotable. The limit plate device can also include two additional limit plates that are not pivotable. The limit plate device can include a hydraulic cylinder suitable for pivoting the pivotable limit plates of the first limit plate assembly and the second limit plate assembly. The limit plate device can have an electric drive suitable for pivoting the pivotable limit plates of the first limit plate assembly and the second limit plate assembly.

[0050] The road paver may have a control device. The control device may be configured to rotate the stop plate around the rotation device. The control device may be configured to move the stop plate to a first, second and / or third stop 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.

[0051] A third aspect of the present invention relates to a locking motion device for a pivotable component of a construction machine, in particular for a stop plate assembly according to the first aspect of the present invention. The locking motion device comprises at least one locking component. The locking component has a first stop block, a second stop block and a third stop block. The stop block can be adjusted to a surface. The locking motion device also includes at least one latch, which extends substantially in an axial direction between a first distal end and a second distal end. The latch can have an elongated hole. The elongated hole can extend in the axial direction of the latch, in particular, it is arranged parallel to the axial direction. The latch can be rotatably attached to the pivotable component via the elongated hole by means of a fastener, in particular a screw or a bolt. The fastener can move in the elongated hole. This enables the latch to move relative to the pivotable component. The latch can have a protrusion in the thickness direction at the first distal end. The thickness direction can extend orthogonally to the axial direction. The latch can be L-shaped. The protrusion can represent an L-shaped leg. The other L-shaped leg can be formed by the extension of the latch in the axial direction. The protrusion can have an inclined surface on the side away from the second distal end.

[0052] The latch may be displaced to a first locking position. The latch may be displaced to a second locking position. The latch may be displaced to a third locking position. In the first locking position, a surface of the protrusion facing the second distal end of the latch may abut against the first limit stop. In the second locking position, an inclined surface of the protrusion may abut against the second limit stop. In the third locking position, a surface of the protrusion facing the pivotable member may abut against the third limit stop. The first locking position may be different from the second and / or third locking position. The second locking position may be different from the first and / or third locking position.

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

[0054] The second limit stop and the third limit stop may be the same limit stop. The second limit stop and the third limit stop may be formed by the same surface.

[0055] The locking component may be attached to the rotating device. The pivotable component may be attached to the rotating device. The pivotable component may rotate around the rotating device. The locking assembly may be adjusted so that it cannot rotate around the rotating device.

[0056] When the latch is in the first locked position, the pivotable member is movable between a first rotational angle and a second rotational angle. When the latch is in the second locked position, the pivotable member is movable between a third rotational angle and a fourth rotational angle. When the latch is in the third locked position, the pivotable member is movable between a fourth rotational angle and a fifth rotational angle.

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

[0058] The first rotation angle may be the same as the second rotation angle. When the latch is in the first locking position, the pivotable component may be fixed in a position of the first rotation angle or the second rotation angle, in particular a maximum rotation position. The fourth rotation angle may be the same as the fifth rotation angle. When the latch is in the third locking position, the pivotable component may be fixed in a position of the fourth rotation angle or the fifth rotation angle, in particular a minimum rotation position.

[0059] When the latch is in the first locked position, the fastener may be located at one end of the slot toward the second distal end of the latch. When the latch is in the second locked position, the fastener may be located at one end of the slot toward the first distal end of the latch. When the latch is in the third locked position, the fastener may be located at one end of the slot toward the second distal end of the latch. When the latch is in the unlocked position, the fastener may be located at one end of the slot toward the second distal end of the latch.

[0060] The latch may be a first latch. The locking movement may have a second latch. The second latch may be adapted identically to the first latch.

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

[0062] The second latch is displaceable to a first, second and third locking position. The second latch is displaceable to an unlocking position. In the first locking position, a surface of the protrusion of the second latch facing the second distal end of the second latch may abut against the first limit stop of the second locking member. In the second locking position, an inclined surface of the protrusion of the second latch may abut against the second limit stop of the second locking member. In the third locking position, a surface of the protrusion of the second latch facing the pivotable member may abut against the third limit stop of the second locking member.

[0063] Alternatively, the second latch can only be displaced to the second and third locking positions and the unlocked position. In the second locking position, the inclined surface of the protrusion of the second latch can abut against the limit stop of the second locking part. In the third locking position, the surface of the protrusion of the second latch facing the pivotable part can abut against the limit stop of the second locking part. When the first latch is in the first locking position, the second latch can be in the unlocked position.

[0064] The projection may be attached to the pivotable part. The projection may form a limit stop for the latch. The projection may be L-shaped. In the first locking position, the latch may abut the limit stop of the projection with a surface facing away from the pivotable part. In the third locking position, the latch may abut the limit stop of the projection with a surface facing away from the pivotable part. In the first and third locking positions, the latch may abut the same limit stop of the projection with the same surface facing away from the pivotable part. In the second locking position, the latch may abut the limit stop of the projection of the pivotable part with another surface, in particular the surface of the projection of the latch facing the second distal end.

[0065] A road paver, in particular a road paver according to the second aspect of the invention, comprises a screed assembly. The road paver can be moved along a paving direction during paving of paving material. The road paver comprises a lateral distribution device, in particular a screw conveyor. The road paver has a pivotable component. The pivotable component is arranged in front of the lateral distribution device in the paving direction. The road paver comprises a locking movement device according to the third aspect of the invention. The locking movement device can be suitable for fixing the pivotable component in different positions or limiting the rotation of the pivotable component.

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

[0067] A fourth aspect of the present invention relates to use of the locking movement device according to the third aspect of the present invention for locking the limit plate assembly according to the first aspect of the present invention.

[0068] A fifth aspect of the present invention relates to a method for pivoting a limit plate of a road paver. The method comprises moving a locking device of the road paver to an unlocked position. When the locking device is in the unlocked position, the limit plate can be pivoted between a minimum limit plate position and a maximum limit plate position (in particular around a vertical axis). The method also comprises pivoting the limit plate to a limit plate position between the minimum limit plate position and the maximum limit plate position. The method also comprises moving the locking device to the locked position. In the locked position, the limit plate can be pivoted between a minimum limit plate position and an intermediate limit plate position. The intermediate limit plate position is located between the minimum limit plate position and the maximum limit plate position.

[0069] The intermediate stop plate position may be closer to the maximum stop plate position than to the minimum stop plate position.

[0070] The method may further comprise moving the locking device to an unlocked position and then pivoting the stop plate to a minimum stop plate position or a maximum stop plate position. The locking device may then be moved to another locking position, in particular different from the other locking positions. When the locking device is in the other locking position, the stop plate may be fixed in the minimum stop plate position or the maximum stop plate position.

[0071] The pivoting of the stop plate to the stop plate position, the minimum stop plate position, the intermediate stop plate position and / or the maximum stop plate position can be performed via a hydraulic cylinder and / or an electric drive. The pivoting of the stop plate to the stop plate position, the minimum stop plate position, the intermediate stop plate position and / or the maximum stop plate position can be performed via a control unit.

[0072] The locking device can be manually displaced to an unlocked position. The locking device can be manually displaced to a locked position. The locking device can be manually displaced to another locked position.

[0073] The stop plate assembly according to the first aspect of the present invention can be used in the road paver according to the second aspect of the present invention and / or used together with the method steps of the method according to the fifth aspect of the present invention. The stop plate assembly according to the first aspect of the present invention can be used in combination with the locking motion device according to the third aspect of the present invention. The stop 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 the road paver according to the second aspect of the present invention and / or used together with the method steps of the method according to the fifth aspect of the present invention. The use of the locking motion device according to the fourth aspect of the present invention can be performed together with the locking motion device according to the third aspect of the present invention, in the road paver according to the second aspect of the present invention and / or using the method steps of the method according to the fifth aspect of the present invention. The method according to the fifth aspect of the present invention can be performed by the stop plate assembly according to the first aspect of the present invention, the road paver according to the second aspect of the present invention and / or the locking motion device according to the third aspect of the present invention.

[0074] The expressions "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 the second component does not necessarily mean the presence of the first component, and vice versa. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] The present invention is described in more detail below with reference to the embodiments.

[0076] 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.

[0077] 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.

[0078] Figure 3 Shows Figure 2 Schematic front view of a cross section of the limit plate device.

[0079] Figure 4 A schematic top view of a limiting plate assembly according to an embodiment of the present invention is shown.

[0080] Figure 5 A detailed view of a latch according to an embodiment of the present invention is shown.

[0081] Figure 6 A detailed view of a locking device in an unlocked position is shown according to an embodiment of the invention.

[0082] Figure 7 Shows Figure 5 Detailed view of the locking device in the first locking position.

[0083] Figure 8 Shows Figure 5 Detailed view of the locking device in the second locking position.

[0084] Fig. 9 Shows Figure 5 Detailed view of the locking device in the third locking position. DETAILED DESCRIPTION

[0085] Figure 1 A road paver 1 according to an embodiment of the invention is shown. The road paver 1 comprises a tractor 2 and a screed assembly 3. The screed assembly 3 is arranged behind the tractor 2 with respect to a paving direction 100. Figure 1 , the screed assembly 3 is only schematically displaced. A material hopper 4 for receiving paving material is arranged in the front area of ​​the road paver 1. The paving material (also referred to as paving material) is transported to the rear by a material transport device of the tractor 2 against the paving direction 100 and provided to the screed assembly 3. A transverse distribution device 5 can be arranged in the rear area 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 limit plate device 6 with at least one limit plate assembly 7 is arranged in front of the transverse distribution device 5 in the paving direction 100. The limit plate device 6 prevents the paving material from deviating in the direction of the paving direction 100.

[0086] Figure 2 A top view of a road paver 1 according to an embodiment of the invention is shown. The screed assembly 3 comprises a bottom screed 8. The bottom screed has a bottom screed operating width 201. The bottom screed operating width 201 may 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 consists of the bottom screed 8 and the extension screed 9. The extension screed 9 may be adapted 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 in particular in the paving direction 100 and prevent the paving material from being distributed in the area laterally outside the screed assembly 3.

[0087] The transverse distribution device 5 is arranged in front of the screed assembly 3 along the paving direction 100. The stop plate device 6 is arranged in front of the transverse distribution device 5 along the paving direction 100. The stop plate device 6 has a stop plate assembly 7. The stop plate assembly 7 has a pivotable stop plate 11. The stop plate 11 can rotate around the rotation device 12, in particular around a vertical axis.

[0088] The limit plate device 6 may have a bottom limit plate 13. The bottom limit plate 13 extends substantially in the transverse direction 200. The limit plate device 6 may also include an extendable limit plate 14. The extendable limit plate 14 may be moved relative to the bottom limit plate 13 in the transverse direction 200 via a traverse device 15 (e.g., a hydraulic cylinder or an electric drive). The laterally extendable limit plate 14 may be used to change the effective width of the limit plate device 6. The limit plate device 6 may have an intermediate limit plate 16. The intermediate limit plate 16 may be arranged between the bottom limit plate 13 and the extended limit plate 14. The extendable limit plate 14 may be attached to the bottom limit plate 13 or the intermediate limit plate 16. The traverse device 15 may be attached to the bottom limit plate 13 or the intermediate limit plate 16.

[0089] The rotating device 12 may be attached to the bottom stop plate 13, the extendable stop plate 14 or the middle stop plate 16. Therefore, the pivotable stop plate 11 may rotate relative to the bottom stop plate 13, the extendable stop plate 14 or the middle stop plate 16.

[0090] The limit plate device 6 may have two limit plate assemblies 7, such as Figure 2 The two limit plate assemblies 7 can be advantageously arranged on the left and right sides of the road paver 1, respectively. The limit plate device 6 can have two extendable limit plates 14, two traverse devices 15 and two intermediate limit plates 16, as shown in FIG. Figure 2 Advantageously, these can be arranged on the left and right side of the road paver 1 , respectively.

[0091] Figure 3 Shows Figure 2 2. A front view of a stop plate arrangement 6 of FIG. 6. The stop plate arrangement 6 comprises a bottom stop plate 13, to which an intermediate stop plate 16 is laterally attached in a transverse direction 200. A traverse device 15 is attached to the intermediate stop plate 16 and is adapted to move an extendable stop plate 14 adjacent to the intermediate stop plate 16 in a transverse direction 200. The pivotable stop plate 11 is attached to the extendable stop plate 14 via a rotation device 12. The rotation device 12 is adapted to rotate the pivotable stop plate 11 around a vertical axis.

[0092] Figure 4A schematic top view of a stop plate assembly 7 according to an embodiment of the present invention is shown. In this embodiment, the stop plate assembly 7 is directly attached to the bottom stop plate 13. The pivotable stop plate 11 is attached to the bottom stop plate 13 via a rotation device 12. The pivotable stop plate 11 can rotate around the rotation device 12 between a minimum stop plate position 17 and a maximum stop plate position 18.

[0093] Figure 4 The pivotable limit plate 11 is shown in a first limit plate position 19, a second limit plate position 20 and a third limit plate position 21. The first limit plate position 19 corresponds to the maximum limit plate position 18. The third limit plate position 21 corresponds to the minimum limit plate position 17. In the first limit plate position 19, the limit plate 11 has a first angle 22 relative to the paving direction 100. The first angle 22 may be 90 degrees. In the second limit plate position 20, the limit plate 11 has a second angle 23 relative to the paving direction 100. The second angle 23 may be 120 degrees. In the third limit plate position 21, the limit plate 11 has a third angle 24 relative to the paving direction 100. The third angle 24 may be 180 degrees. In the third limit plate position 21, the limit plate 11 may extend parallel to the paving direction 100.

[0094] 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.

[0095] Figure 5 Detailed description is given in FIG. 4 of the first latch 26. The latch 26 has a latch base 28, which extends substantially in the axial direction 300 between a first distal end 29 and a second distal end 30. The material thickness of the latch 26 is measured in the thickness direction 400. The thickness direction 400 of the latch 26 is the direction in which the latch 26 has the smallest 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 facing away from 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. A surface 33 of the protrusion 31 facing the second distal end 30 extends orthogonally to the axial direction 300. The latch 26 further comprises an elongated hole 34. The elongated hole 34 is arranged in the latch base 28 and can extend in the axial direction 300. The second latch 27 may be adapted identically to the first latch 26 .

[0096] Figures 6 to 9Detailed views of a locking device 25 in an unlocked position and three locked positions according to an embodiment of the present invention are shown. The first latch 26 and the second latch 27 are respectively connected to the pivotable stop plate 11 via screws 35, and the screws 35 are guided through the long holes 34. In the illustrated embodiment, the latches 26 and 27 are not directly connected to the stop plate 11, but are each indirectly connected via an intermediate piece 36. The intermediate piece 36 can be welded to the stop plate 11. In addition, the intermediate piece 36 is connected to a component of the rotating device 12, for example, welded to the component. The component and therefore the stop plate 11 can rotate around the rest of the rotating device 12. The stop plate 11 also has two stop plate protrusions 37, which are connected to the stop plate 11, for example, welded to the stop plate 11, and are respectively arranged below the intermediate piece 36.

[0097] The locking device 25 also includes a first locking component 38. The first locking component 38 has a first limit stop 39, a second limit stop 40 and a third limit stop 41. The second limit stop 40 and the third limit stop 41 can be the same limit stop. The term "limit stop" can refer to a component or surface that can contact the latch 26, thereby limiting the movement of the latch 26 in at least one direction. The locking device 25 also includes a second locking component 42. The second locking component 42 has a limit stop 43. The first locking component 38 can be integrally formed with the second locking component 42. The first locking component 38 and the second locking component 42 are connected to the rotating device 12. The first locking component 38 and the second locking component 42 do not rotate around the rotating device 12. The limit plate 11 and the first latch 26 and the second latch 27 rotate relative to the first locking component 38 and the second locking component 42.

[0098] Figure 6 The locking device 25 is shown in the unlocked position. The two latches 26, 27 can be in a position tilted away from the rotating device 12. The two latches 26, 27 can rest on the respective stop plate protrusions 37. The two latches 26, 27 are held in the unlocked position by their own weight. The screw 35 is arranged at the end of the respective long hole 34 of the first and second latches 26, 27 facing the second distal end 30. The stop plate 11 can rotate around the rotating device 12 between the minimum stop plate position 17 and the maximum stop plate position 18.

[0099] Figure 7The locking device 25 is shown in a first locking position. The stop plate 11 is in the first stop plate position 19. The first latch 26 is tilted in the direction of the rotation device 12. The surface 33 of the protrusion 31 of the first latch 26, which faces the second distal end 30, abuts against a first limit stop 39 of the first locking member 38. The first limit stop 39 has a surface extending 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, the rotation of the stop plate 11 in the direction of the minimum stop plate position 17 is blocked.

[0100] exist Figure 7 In the illustrated embodiment, the second latch 27 is in the unlocked position. The screw 35 of the first latch 26 is arranged at the end of the long hole 34 of the first latch 26, which is toward the second distal end 30 of the first latch 26. The screw 35 of the second latch 27 is arranged at the end of the long hole 34 of the second latch 27, which is toward the second distal end 30 of the second latch 27.

[0101] Alternatively, the second latch 27 can also be in the first locking position. In this case, the second locking member 42 has the same shape as the first locking member 38.

[0102] Figure 8 The locking device 25 is shown in a second locking position. The stop plate 11 is in the second stop plate position 20. The two latches 26, 27 are tilted in the direction of the rotating device 12. The screw 35 of the first latch 26 is arranged at the end of the elongated hole 34 of the first latch 26, which is towards the first distal end 29 of the first latch 26. The screw 35 of the second latch 27 is arranged at the end of the elongated hole 34 of the second latch 27, which is towards the first distal end 29 of the second latch 27.

[0103] The inclined surface 32 of the first latch 26 abuts against the second limit 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 can abut against the limit plate protrusion 37 assigned to the first latch 26.

[0104] The inclined surface 32 of the second latch 27 abuts against the limit stopper 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 can abut against the limit plate protrusion 37 assigned to the second latch 27.

[0105] The rotation of the stop plate 11 in the direction of the maximum stop plate position 18 is blocked by the interaction between the first latch 26 and the first locking member 38 and, if applicable, the stop plate protrusion 37. The rotation of the stop plate 11 in the direction of the maximum stop plate position 18 is blocked by the interaction between the second latch 27 and the second locking member 42 and, if applicable, the stop plate protrusion 37.

[0106] Fig. 9 The locking device 25 is shown in a third locking position. The stop plate 11 is in the third stop plate position 21. The two latches 26, 27 are tilted in the direction of the rotating device 12. The screw 35 of the first latch 26 is arranged at the end of the elongated hole 34 of the first latch 26, which is towards the second distal end 30 of the first latch 26. The screw 35 of the second latch 27 is arranged at the end of the elongated hole 34 of the second latch 27, which is towards the second distal end 30 of the second latch 27.

[0107] The surface of the first latch 26 facing the limiting plate 11 abuts against the third limiting stopper 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.

[0108] The surface of the second latch 27 facing the stop plate 11 abuts against the stop block 43 of the second locking member 42. The surface of the second latch 27 away from the stop plate 11 can abut against the stop plate protrusion 37 assigned to the second latch 27.

[0109] The rotation of the stop plate 11 in the direction of the maximum stop plate position 18 is blocked by the interaction between the first latch 26 and the first locking member 38 and, if applicable, the stop plate protrusion 37. The rotation of the stop plate 11 in the direction of the maximum stop plate position 18 is blocked by the interaction between the second latch 27 and the second locking member 42 and, if applicable, the stop plate protrusion 37.

Claims

1. A limit plate assembly (7) for a road paver (1), comprising: Limiting plate (11), A rotating device (12), A locking device (25), in, The stop plate (11) is attached to a component of the road paver (1) via the rotation device (12), The limit plate (11) can rotate around the rotating device (12) between a minimum limit plate position (17) and a maximum limit plate position (18). wherein the locking device (25) is adapted to adopt a first locking position and a second locking position, Wherein, when the limit plate (11) is in the first limit plate position (19), the locking device (25) is suitable for preventing the limit plate (11) from rotating around the rotating device (12) in the direction of the minimum limit plate position (17) at the first locking position, and when the limit plate (11) is in the second limit plate position (20), the locking device (25) is suitable for preventing the limit plate (11) from rotating around the rotating device (12) in the direction of the maximum limit plate position (18) at the second locking position.

2. The limiting plate assembly according to claim 1, wherein: The locking device (25) is suitable for adopting a third locking position, wherein when the limit plate (11) is in the third limit plate position (21), the locking device (25) is suitable for preventing the limit plate (11) from rotating around the rotating device (12) in the direction of the maximum limit plate position (18) at the third locking position.

3. The limiting plate assembly according to claim 2, wherein: When the limit plate (11) is in the fourth limit plate position, the locking device (25) is suitable for preventing the limit plate (11) from rotating around the rotating device (12) in the direction of the minimum limit plate position (17) at the second locking position.

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

6. The limit plate assembly according to any one of claims 1 to 5, wherein: The locking device (25) comprises a latch (26) adapted to adopt the first locking position and the second locking position, wherein the latch (26) remains 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 locking position and the second locking position by its own weight.

8. The limiting plate assembly according to claim 6, wherein: The latch (25) is connected to the stop plate (11), Wherein, in the first locking position, when the limit plate (11) is in the first limit plate position (19), the latch (26) abuts against the limit stopper (39) of the road paver (1) with the first surface (33), so that the latch (26) prevents the limit plate (11) from rotating in the direction of the minimum limit plate position (17), And / or, in the second locking position, when the limit plate (11) is in the second limit plate position (20), the latch (26) abuts against the limit stopper (40) of the road paver (1) with the second surface (32), so that the latch (26) prevents the limit plate (11) from rotating in the direction of the maximum limit plate position (18).

9. The limiting plate assembly according to claim 6, wherein: The latch (26) is suitable for adopting a third locking position, wherein, in the third locking position, when the limit plate (11) is in the third limit plate position (21), the latch (26) abuts against the limit stopper (41) of the road paver (1) with a third surface, so that the latch (26) prevents the limit plate (11) from rotating in the direction of the maximum limit 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), Wherein, in the first locking position, when the limit plate (11) is in the first limit plate position (19), the latch (26) abuts against the limit stopper of the limit plate (11) with the first surface, so that the latch (26) prevents the limit plate (11) from rotating in the direction of the minimum limit plate position (17). And / or, in the second locking position, when the limit plate (11) is in the second limit plate position (20), the latch (26) abuts against the limit stopper of the limit plate (11) with the second surface, so that the latch (26) prevents the limit plate (11) from rotating in the direction of the maximum limit plate position (18).

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

12. The limit plate assembly according to any one of claims 1 to 5, wherein: The limit plate assembly (7) comprises a pivot device, wherein the pivot device is suitable for rotating the limit plate (11) around the rotating device (12), wherein the pivot device comprises a hydraulic cylinder and / or an electric drive.

13. A road paver (1), comprising: Screed assembly (3), a lateral distribution device (5) adapted to distribute paving material transversely to a paving direction (100) of the road paver (1), and The limiting plate assembly (7) according to any one of claims 1 to 12, Wherein, 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 a construction machine, the locking motion device comprising at least one locking member (38) having a first limit stop (39), a second limit stop (40) and a third limit stop (41), and at least one latch (26) extending substantially in an axial direction (300) between a first distal end (29) and a second distal end (30), in, The latch (26) has an elongated hole (34) through which the latch (26) is rotatably attached to the pivotable member via a fastener, The latch (26) has a protrusion (31) at the first distal end (29) along the thickness direction. The protrusion (31) has an inclined surface (32) on a side facing away from the second distal end (30). wherein the latch (26) is movable to a first locking position, a second locking position and a third locking position, Wherein, in the first locking position, the surface (33) of the protrusion (31) facing the second distal end (30) abuts against the first limit stopper (39), wherein, in the second locking position, the inclined surface (39) abuts against the second limit stop (40), and Wherein, in the third locking position, the surface of the protrusion (31) facing the pivotable component abuts against the third limit stopper (41).

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

16. A locking motion device, used for a limit plate assembly (7) according to any one of claims 1 to 12, the locking motion device comprising at least one locking member (38) having a first limit stop (39), a second limit stop (40) and a third limit stop (41), and at least one latch (26) extending substantially in an axial direction (300) between a first distal end (29) and a second distal end (30), in, The latch (26) has an elongated hole (34) through which the latch (26) is rotatably attached to the pivotable member via a fastener, The latch (26) has a protrusion (31) at the first distal end (29) along the thickness direction. The protrusion (31) has an inclined surface (32) on a side facing away from the second distal end (30). wherein the latch (26) is movable to a first locking position, a second locking position and a third locking position, Wherein, in the first locking position, the surface (33) of the protrusion (31) facing the second distal end (30) abuts against the first limit stopper (39), wherein, in the second locking position, the inclined surface (39) abuts against the second limit stop (40), and Wherein, in the third locking position, the surface of the protrusion (31) facing the pivotable component abuts against the third limit stopper (41).

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

18. Use of a locking movement device according to any one of claims 14 to 17 to lock a limit plate assembly according to any one of claims 1 to 12.

19. A method for pivoting a stop plate (11) of a road paver (1), comprising: - moving the locking device of the road paver to an unlocked position so that the stop plate (11) can pivot between a minimum stop plate position (17) and a maximum stop plate position (18), - pivoting the stop plate (11) to a stop plate position between the minimum stop plate position (17) and the maximum stop plate position (18), and -Moving the locking device to the locking position so that the limit plate (11) can pivot between the minimum limit plate position (17) and the intermediate limit plate position, wherein the intermediate limit plate position is located between the minimum limit plate position (17) and the maximum limit plate position (18).

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