Road paver

Abstract

The utility model relates to a road paver (1) which is used for generating a paving layer (2) by paving materials (6). The road paver (1) comprises: a screed (7); a longitudinal conveying device (5) for conveying the paving material (6) to the screed (7) in a direction opposite to the travel direction (100) of the road paver (1); a transverse distribution device (9) for distributing the paving material (6) in front of the screed (7) transversely to the direction of travel (100); and a deflection plate device (24), which is arranged in front of the transverse distribution device (9) in the direction of travel (100). The deflection plate device (24) has a height-adjustable deflection plate (26).

Description

Technical Field

[0001] This utility model relates to a road paver. Background Technology

[0002] Road pavers are designed to generate paving layers from paving materials (such as asphalt) and typically include a chassis and working mechanisms mounted on the chassis, such as hoppers, screeds, longitudinal conveyors, and transverse distributors.

[0003] A fixed deflector plate is typically located below the rear end of the longitudinal conveyor. During paving, as material is transferred from the longitudinal conveyor to the transverse distribution unit, it can accumulate in the direction of travel of the road paver. This material buildup, accumulating in front of the transverse distribution unit, can cause paving material segregation and contaminate the drive gears. This can only be prevented to a limited extent by the fixed deflector plate known in the prior art. Because sufficient ground clearance or a sufficiently large drive-on angle is required for the deflector plate to be able to drive onto the transport truck, it cannot be set as low as necessary. If the deflector plate is not set high enough, it may affect the driving onto the transport truck or may damage the deflector plate when driving onto the loading ramp of the transport truck. Utility Model Content

[0004] The purpose of this invention is to reduce segregation of the paving material in front of the lateral distribution device and to reduce contamination of the drive gear by the paving material. This purpose is achieved by a road paver according to this invention.

[0005] According to a first aspect of the present invention, a road paver for generating a paving layer of paving material includes a screed, a longitudinal conveying device, a transverse distribution device, and a deflector device. The longitudinal conveying device conveys the paving material to the screed in a direction opposite to the travel direction of the road paver. The transverse distribution device distributes the paving material transversely to the travel direction in front of the screed. The deflector device is positioned in front of the transverse distribution device along the travel direction and has a height-adjustable deflector plate.

[0006] The height-adjustable deflector plate can be adjusted in its vertical position. The height-adjustable deflector plate can be adjusted in its vertical position relative to the longitudinal conveying device. The height-adjustable deflector plate can be adjusted in its vertical position relative to the transverse distributing device.

[0007] The height-adjustable deflector plate can be adapted to move vertically. The height-adjustable deflector plate can be adapted to move vertically relative to the longitudinal conveying device. The height-adjustable deflector plate can be adapted to move vertically relative to the transverse distributing device.

[0008] The height-adjustable deflector plate allows for alteration or adjustment of the vertical distance between the deflector plate assembly and the substrate. A smaller vertical distance between the deflector plate assembly and the substrate reduces the amount of paving material entering below the longitudinal conveyor and / or into the drive gears of the road paver. This prevents segregation of the paving material.

[0009] In this application, the term "adjustable height" should be specifically understood to mean that the vertical position is adjustable.

[0010] The height of the height-adjustable deflector plate can be adjusted steplessly. The height of the height-adjustable deflector plate can be changed steplessly. The height-adjustable deflector plate can be adjusted steplessly in the vertical position. The height-adjustable deflector plate can be moved steplessly in the vertical position.

[0011] The ironing board may have a base ironing board. The ironing board may have laterally extendable extensions, which are specifically located on the sides of the base ironing board. Viewed from the direction of travel, the extensions may be located on the left and right sides of the base ironing board.

[0012] The height-adjustable deflector plate can move at least 40 mm in height, preferably at least 100 mm, more preferably at least 150 mm, and more preferably at least 200 mm. The height-adjustable deflector plate can move at least 40 mm in height relative to the lateral distribution device, preferably at least 100 mm, more preferably at least 150 mm, and more preferably at least 200 mm. The height-adjustable deflector plate can move at least 40 mm in height relative to the longitudinal conveying device, preferably at least 100 mm, more preferably at least 150 mm, and more preferably at least 200 mm. The height-adjustable deflector plate can move at least 40 mm in height relative to the base, preferably at least 100 mm, more preferably at least 150 mm, and more preferably at least 200 mm.

[0013] The width of the deflector device can be between 42 cm and 172 cm, preferably between 42 cm and 62 cm. The width of the deflector device can be between 60 cm and 80 cm. The width of the deflector device can be between 70 cm and 90 cm. The width of the deflector device can be between 115 cm and 135 cm. The width of the deflector device can be between 130 cm and 150 cm. The width of the deflector device can be between 152 cm and 172 cm. The width of the deflector device can correspond to the width of the screed. The width of the deflector device can correspond to the width of the base screed. The width of the deflector device can correspond to the combined width of the base screed and the extension. The width of the deflector device can correspond to the width of the lateral distributor channel or runner of the road paver. Width is specifically defined as the extension laterally to the direction of travel.

[0014] The width of the height-adjustable deflector plate can be between 42 cm and 315 cm, preferably between 42 cm and 62 cm. The width of the height-adjustable deflector plate can be between 70 cm and 90 cm. The width of the height-adjustable deflector plate can be between 115 cm and 135 cm. The width of the height-adjustable deflector plate can be between 130 cm and 150 cm. The width of the height-adjustable deflector plate can be between 152 cm and 172 cm. The width of the height-adjustable deflector plate can be between 110 cm and 130 cm. The width of the height-adjustable deflector plate can be between 170 cm and 190 cm. The width of the height-adjustable deflector plate can be between 230 cm and 260 cm. The width of the height-adjustable deflector plate can be between 290 cm and 315 cm. The deflector plate device can have multiple height-adjustable deflector plates. The total width of the height-adjustable deflector plates can be as described above. Deflector plates can be arranged laterally to each other in the direction of travel of the road paver, particularly adjacent to each other. Deflector plates can be configured to be offset from each other along the direction of travel. Deflector plates can be aligned with each other along the direction of travel. The width of the height-adjustable deflector plate can correspond to the width of the screed. The width of the height-adjustable deflector plate can correspond to the width of the base screed. The width of the height-adjustable deflector plate can correspond to the combined width of the base screed and the extension. The width of the height-adjustable deflector plate can correspond to the width of the lateral distributor channel or flow channel of the road paver.

[0015] The longitudinal conveying device is positioned in front of the screed along the travel direction. The transverse distribution device is also positioned in front of the screed along the travel direction. The transverse distribution device is positioned downstream of the longitudinal conveying device along the travel direction. The road paver may also have a hopper for receiving paving material. This hopper is positioned in front of the longitudinal conveying device along the travel direction.

[0016] A road paver may have driving gears. These driving gears may be positioned on the side of the longitudinal conveyor. The driving gears may include a left driving gear and a right driving gear. "Left" and "right" refer to the direction of travel of the road paver. The left driving gear may be positioned laterally on the left side of the longitudinal conveyor. The right driving gear may be positioned laterally on the right side of the longitudinal conveyor. The driving gears (specifically the left and right driving gears) may be equipped with tracks. The driving gears (specifically the left and right driving gears) may include wheels.

[0017] The deflector device can extend laterally in the direction of travel, particularly to the left and right, beyond the longitudinal conveying device. The deflector device can extend laterally in the direction of travel into the drive gear. The deflector device can be positioned behind the drive gear along the direction of travel. The deflector device can extend laterally in the direction of travel from the left end of the drive gear to the right end. The deflector device can extend laterally in the direction of travel from the outside of the left drive gear to the outside of the right drive gear.

[0018] The height-adjustable deflector plate can extend laterally in the direction of travel, particularly to the left and right, beyond the longitudinal conveying device. The height-adjustable deflector plate can extend laterally in the direction of travel into the drive gear. The height-adjustable deflector plate can be positioned behind the drive gear along the direction of travel. The height-adjustable deflector plate can extend laterally in the direction of travel from the left end of the drive gear to the right end. The height-adjustable deflector plate can extend laterally in the direction of travel from the outside of the left drive gear to the outside of the right drive gear.

[0019] During the operation of a road paver (especially during paving operations), a height-adjustable deflector plate can move vertically, particularly relative to the longitudinal conveyor. The vertical position of the height-adjustable deflector plate can be adjusted during the operation of the road paver, especially relative to the longitudinal conveyor. Specifically, the deflector plate device can be adjusted so that the height-adjustable deflector plate can be lowered and raised during the operation of the road paver, particularly relative to the longitudinal conveyor.

[0020] The height-adjustable deflector can be attached, at least indirectly, to the suspension of the lateral distribution unit. The height-adjustable deflector can be attached to the suspension of the lateral distribution unit via an intermediate component (e.g., a support structure). The height-adjustable deflector can be directly attached to the suspension of the lateral distribution unit. The suspension of the lateral distribution unit and the height-adjustable deflector can be attached to the same component. The suspension of the lateral distribution unit can be attached to the lateral distribution bracket. The height-adjustable deflector can also be attached to the lateral distribution bracket.

[0021] The height-adjustable deflector plate can move vertically together with the lateral distribution device, particularly relative to the longitudinal conveying device. The lateral distribution device can move vertically, particularly relative to the longitudinal conveying device. The height-adjustable deflector plate can be at least indirectly attached to the lateral distribution device, thus allowing it to move together with the lateral distribution device, particularly relative to the longitudinal conveying device. The suspension of the lateral distribution device can move vertically, particularly relative to the longitudinal conveying device. The lateral distribution bracket can move vertically, particularly relative to the longitudinal conveying device. The vertical position of the height-adjustable deflector plate and the vertical position of the lateral distribution device can be adjusted together, particularly relative to the longitudinal conveying device.

[0022] The suspension of the lateral distribution bracket or lateral distribution device can be attached to the chassis of the road paver via cylinders. The vertical position of the lateral distribution bracket, the suspension of the lateral distribution device, the height-adjustable deflector plate, and / or the lateral distribution device can be adjusted via cylinders. The cylinders can be pneumatic, hydraulic, or electric.

[0023] The height-adjustable deflector plate can move vertically relative to the lateral distribution device. An adjustment assembly disposed between the height-adjustable deflector plate and the suspension of the lateral distribution device can be used to move the height-adjustable deflector plate relative to the lateral distribution device. The adjustment assembly can have at least one pneumatic, hydraulic, or electric cylinder. The adjustment assembly can also have an electric motor.

[0024] The vertical position of the height-adjustable deflector plate can be adjusted relative to the vertical position of the lateral distribution device. The vertical position of the height-adjustable deflector plate can also be adjusted relative to the vertical position of the lateral distribution bracket.

[0025] The deflector plate device can be substantially, particularly in the direction of travel, positioned between the longitudinal conveying device and the lateral distribution device. An adjustable deflector plate can be substantially, particularly in the direction of travel, positioned between the longitudinal conveying device and the lateral distribution device. The term "substantially" should be understood specifically in the manner that the areas of the various components may also overlap. The center of gravity of the deflector plate device, particularly in the direction of travel, can be positioned between the center of gravity of the longitudinal conveying device and the center of gravity of the lateral distribution device. The center of gravity of an adjustable-height deflector plate, particularly in the direction of travel, can be positioned between the center of gravity of the longitudinal conveying device and the center of gravity of the lateral distribution assembly.

[0026] The paving material can be conveyed from the longitudinal conveyor to the transverse distribution device in the opposite direction to the travel direction of the paver. During its journey to the transverse distribution device, the paving material can be guided through a deflector device. Specifically, the paving material falls from the longitudinal conveyor onto the deflector device, which guides the paving material to the transverse distribution device.

[0027] The height-adjustable deflector can be moved vertically via pneumatic means. The height-adjustable deflector can be moved vertically via hydraulic means. The height-adjustable deflector can be moved vertically via electric means. The height-adjustable deflector can be moved vertically via mechanical means. The scraper device may have one or more pneumatic cylinders. The scraper device may have one or more hydraulic cylinders. The scraper device may have one or more electric motors. The scraper device may have one or more cranks or ratchet wheels. The vertical position of the height-adjustable deflector can be adjusted pneumatically, hydraulically, electrically, and / or mechanically.

[0028] The deflector plate device may have a second deflector plate. The second deflector plate may be configured and / or adjusted such that it is immovable in height, particularly immovable relative to the longitudinal conveyor. The second deflector plate may be configured and / or adjusted such that its vertical position is not adjustable, particularly relative to the longitudinal conveyor. The deflector plate device may be adjusted such that the second deflector plate is not adjustable in height. The deflector plate arrangement may be adjusted such that the vertical position of the second deflector plate is not adjustable.

[0029] The second deflector plate can be positioned in front of the height-adjustable deflector plate along the direction of travel. The second deflector plate can be substantially positioned between the longitudinal conveyor and the height-adjustable deflector plate. The second deflector plate can be positioned below the rear end of the longitudinal conveyor.

[0030] The second deflector plate can also be height-adjustable. The deflector plate device can be adjusted in such a way that the height of the second deflector plate is adjustable, particularly relative to the longitudinal conveyor. The deflector plate device can also be adjusted in such a way that the vertical position of the second deflector plate is adjustable, particularly relative to the longitudinal conveyor.

[0031] The deflector plate device can have comb-shaped or mesh-shaped plates. The height of the comb-shaped or mesh-shaped plates is adjustable, particularly relative to the longitudinal conveyor. The comb-shaped or mesh-shaped plates can be positioned in front of the lateral distribution device along the travel direction. The comb-shaped or mesh-shaped plates can be positioned in front of the height-adjustable deflector plate along the travel direction. The comb-shaped or mesh-shaped plates can be positioned between the height-adjustable deflector plate and the longitudinal conveyor.

[0032] The vertical position of the comb-shaped or grid-shaped plates is adjustable. The deflection plate device can be adjusted in such a way that the vertical position of the comb-shaped or grid-shaped plates (especially relative to the longitudinal conveyor) is adjustable.

[0033] Road pavers may have a hopper for receiving paving material. A longitudinal conveying device may be used to convey the paving material from the hopper to the front of the screed. Specifically, the paving material may be conveyed from the hopper to the front of the screed by the longitudinal conveying device in the opposite direction to the travel direction. The longitudinal conveying device may also be used to convey the paving material from the hopper to a transverse distribution device. The transverse distribution device may be used to distribute the paving material transversely to the travel direction in front of the screed.

[0034] The road paver may have a control unit. This control unit can be configured to adjust the height of an adjustable-height deflector plate, particularly relative to the longitudinal conveying device. The control unit can be configured to adjust the height of the adjustable-height deflector plate relative to the lateral distribution device. The control unit can be configured to adjust the height of a comb-shaped or grid-shaped plate, particularly relative to the longitudinal conveying device. The control unit can be configured to adjust the height of the comb-shaped or grid-shaped plate relative to the lateral distribution device. The control unit can be used for stepless adjustment of the height of the adjustable-height deflector plate. The control unit can be used for stepless adjustment of the height of the comb-shaped or grid-shaped plate.

[0035] The control unit can be configured to adjust the vertical position of the height-adjustable deflector plate, particularly relative to the longitudinal conveyor. The control unit can be configured to adjust the vertical position of the height-adjustable deflector plate relative to the transverse distribution device. The control unit can be used to steplessly adjust the vertical position of the height-adjustable deflector plate. The control unit can be used to steplessly adjust the vertical position of comb-shaped or grid-shaped plates.

[0036] The control unit can be configured to adjust the vertical position of the comb-shaped or grid-shaped plate and the vertical position of the height-adjustable deflection plate.

[0037] The comb-shaped or mesh-shaped plate can move in height together with the height-adjustable deflector plate. The comb-shaped or mesh-shaped plate can move in height relative to the height-adjustable deflector plate.

[0038] Road pavers may be equipped with a pre-scraper device. This pre-scraper device may be positioned behind the lateral distribution device along the direction of travel. The pre-scraper device may have a scraper with adjustable height.

[0039] As used in the description of the various embodiments and the appended claims, unless the context clearly indicates otherwise, the singular form should be understood to include the plural form, and vice versa.

[0040] The terms “first,” “second,” “third,” and “fourth” should be understood only to identify specific elements or components and do not necessarily indicate a particular order or assembly of those components or components. For example, the presence of a fourth element / component does not necessarily imply the presence of the first, second, or third element / component, and vice versa. Attached Figure Description

[0041] Advantageous embodiments of the present invention will now be explained in more detail with reference to the accompanying drawings.

[0042] Figure 1 A side view of a road paver according to the present invention is shown.

[0043] Figure 2 A perspective view of a road paver according to the present invention is shown.

[0044] Figure 3 A top view of the longitudinal conveying device, the transverse distribution device, and the screed of the road paver according to the present invention is shown.

[0045] Figure 4 A perspective view of the longitudinal conveying device, the transverse distribution device, and the deflector plate device of the road paver according to the present invention is shown.

[0046] Figure 5 A perspective view of the longitudinal conveying device and deflector plate device of the road paver according to the present invention is shown.

[0047] Figure 6 A perspective view of the longitudinal conveying device and deflector plate device of the road paver according to the present invention is shown.

[0048] Figure 7 A side cross-sectional view of the longitudinal conveying device and deflector plate device of the road paver according to the present invention is shown.

[0049] Figure 8 A side cross-sectional view of the longitudinal conveying device and deflector plate device of the road paver according to the present invention is shown. Detailed Implementation

[0050] Figure 1 and Figure 2A side view and a perspective top view of a road paver 1 for forming a paving layer 2 on a substrate 3 according to the present invention are shown. The road paver 1 has a hopper 4 at its front along the paving travel direction 100. The paving material 6 contained therein is conveyed from the hopper 4 to the screed 7 of the road paver 1 via a longitudinal conveying device 5 in a direction opposite to the paving travel direction 100. The longitudinal conveying device 5 is disposed within the chassis 8 of the road paver 1 and first conveys the paving material 6 to a transverse distribution device 9 disposed in front of the screed 7 along the paving travel direction 100. This transverse distribution device 9 is used to distribute the paving material 6 in front of the screed 7 in a transverse direction 200 transverse to the paving travel direction 100.

[0051] The extension of the paving layer 2 in the lateral direction 200 is referred to as the working width 210 or paving width 210. The screed 7 has a screed base 10 and a laterally extendable extension 11. The working width 210 of the paving layer 2 can be changed and adjusted by laterally extending this extension 11.

[0052] The road paver 1 also has a control unit 33. This control unit 33 can be operated by user input or automatically. The control unit 33 is used to adjust the vertical position of the height-adjustable deflector plate 26. The control unit 33 is also used to move the height-adjustable deflector plate 26.

[0053] Figure 3 A schematic top view of the screed 7 and longitudinal conveying device 5 of the road paver 1 according to the present invention is shown. The longitudinal conveying device 5 has a conveyor belt in the form of a scraper belt 12. The scraper belt 12 includes a left scraper belt portion and a right scraper belt portion. The designations "left" and "right" should be understood as referring to the direction of travel 100 along the paving direction.

[0054] The spreading material 6, which falls in front of the base 10 of the ironing board 7 with the help of the scraper belt 12, is distributed along the front side 14 of the base 10 of the ironing board 7 by the transverse distribution device 9, as shown by arrow 220.

[0055] The rear wall 15 of the chassis 8 of the road paver 1 and the front side 14 of the base of the screed 10 together form a lateral distribution channel 16 for the lateral distribution device 9.

[0056] The extension portion 11 of the ironing board 7 can extend laterally in the transverse direction 200 relative to the base ironing board 10, thereby widening the ironing board 7 and changing the working width 210. The transverse distribution channel 16 can be further extended laterally according to the widening of the ironing board 7.

[0057] The paving material 6 is transferred from the scraper belt 12 of the longitudinal conveying device 5 to the transverse distribution device 9 positioned in front of the screed 7. The transverse distribution device 9 is used to distribute the paving material 6 in front of the screed 7 in the transverse distribution channel 16 in the transverse direction 200, which is transverse to the paving travel direction 100.

[0058] The lateral distribution device 9 is attached to the rear end of the chassis 8 of the road paver 1. The lateral distribution device 9 includes a left distribution screw 17 and a right distribution screw 18. The left distribution screw 17 and the right distribution screw 18 are supported on a suspension in the form of a screw suspension 19.

[0059] The housing formed by the screw suspension 19 contains a screw drive (not shown) for powering the two distribution screws 17, 18. The lateral distribution device 9 includes a shaft 20, which can be two separate shafts (left shaft 21, right shaft 22) or a single shaft 20 shared by the two distribution screws 17, 18. The left distribution screw 17 is detachably coupled to the left shaft 21. The right distribution screw 18 is detachably coupled to the right shaft 22. The outer ends of each shaft 21, 22 (i.e., the ends facing away from the screw suspension 19) are supported in screw bearings 23.

[0060] According to this utility model, the deflection plate device 24 is not in Figure 3 As shown in the figure. The position of the deflection plate device 24 is indicated by reference numeral 24.

[0061] Figure 4 A perspective view of the longitudinal conveying device 5, the transverse distribution device 9, and the deflector plate device 24 of the road paver according to the present invention is shown. The deflector plate device 24 is disposed between the longitudinal conveying device 5 and the transverse distribution device 9.

[0062] To better illustrate the various components of the longitudinal conveying device 5 and the deflection plate device 24, Figure 4 Only a portion of the horizontal distribution device 9 is shown in the image. Figure 4 The right distribution screw 18, right shaft 22, and screw suspension 19 of the lateral distribution device 9 are shown. The screw suspension 19 is mounted on the lateral distribution bracket 25.

[0063] The deflector plate device 24 includes a height-adjustable deflector plate 26. The height-adjustable deflector plate 26 is connected to a lateral distribution bracket 25 via a support structure 27. The lateral distribution bracket 25 is height-movable to adjust the vertical position of the lateral distribution device 9. Due to the connection via the support structure 27, the height-adjustable deflector plate 26 thus moves height-wise together with the lateral distribution device 9. In an alternative embodiment, the height-adjustable deflector plate 26 can move height-wise independently of the lateral distribution device 9. The upper side 28 of the height-adjustable deflector plate 26 is angled 30° to the vertical direction to guide the paving material to the lateral distribution device 9.

[0064] The deflector plate device 24 also includes a comb-shaped plate 29. The comb-shaped or mesh-shaped plate 29 is disposed between the longitudinal conveyor 5 and the height-adjustable deflector plate 26. The comb-shaped plate is preferably made of spring steel so as to avoid contact with the conveyor chain of the longitudinal conveyor and thus avoid damage.

[0065] The deflector plate device 24, particularly the height-adjustable deflector plate 26, reduces the amount of paving material 6 entering below the longitudinal conveyor device 5. The deflector plate device 24, particularly the height-adjustable deflector plate 26, reduces the amount of paving material 6 being conveyed away from the lateral distribution device 9 in the paving travel direction 100. The deflector plate device, particularly the height-adjustable deflector plate 26, can reduce the entrainment of the paving material 6 by the scraper bar of the empty strand 30 of the scraper belt 12 in the paving travel direction 100. This entrainment can be further reduced by the comb-like or mesh-like plates 29. The drive gear 31 of the road paver 1 is located on both sides of the longitudinal conveyor device 5. The deflector plate device 24, particularly the height-adjustable deflector plate 26, reduces the amount of paving material 6 entering or below the drive gear 31.

[0066] Figure 5 and Figure 6 It shows Figure 4 The diagram shows a perspective view of the longitudinal conveying device 5 and the deflection plate device 24. For clarity, Figure 5 and Figure 6 The horizontal distribution device 9 is not shown.

[0067] Figure 5 and Figure 6 The deflection plate device 24 shown also includes a second deflection plate 32. Figure 4 In the diagram shown, the second deflector plate 32 is covered by other components of the road paver 1. The second deflector plate 32 is fixed and connected to the chassis 8 or longitudinal conveyor 5 of the road paver 1. Therefore, the second deflector plate 32 is not movable in height. The second deflector plate 32 can also be omitted, since the height-adjustable deflector plate 24 largely or completely replaces the function of the second deflector plate 32.

[0068] Figure 5 The adjustable height deflector plate 26 is shown in the raised position. Figure 6 An adjustable-height deflector plate 26 is shown in a lowered position. A comb-shaped or mesh-shaped plate 29 is attached to the adjustable-height deflector plate 26 and can move in height together with the adjustable-height deflector plate 26.

[0069] Figure 7 and Figure 8 It shows Figure 5 and Figure 6The side view of the longitudinal conveying device 5 and the deflector plate device 24 shown. Figure 7 The adjustable-height deflector plate 26 and the comb-like or grid-like plate 29 are shown in the raised position. When driving the road paver 1 onto the transport truck via the loading ramp, it is essential to ensure a certain base clearance or driving angle 400° below the deflector plate assembly 24. Otherwise, the deflector plate assembly 24 may come into contact with the base 3 when driving onto the loading ramp, which could damage the deflector plate assembly 24. A sufficiently large driving angle 400° can be achieved by moving the adjustable-height deflector plate 26 to the raised position.

[0070] Figure 8 An adjustable-height deflector plate 26 and a comb-like or grid-like plate 29 are shown in a lowered position. During the laying of the paving material 6, limiting the vertical distance (also referred to as height in this application) between the deflector plate assembly 24 and the substrate 3 may be advantageous. A smaller vertical distance 310 between the deflector plate assembly 24 and the substrate 3 can reduce the amount of paving material 6 entering below the longitudinal conveyor 5 and / or the drive gear 31. In the lowered position, the adjustable-height deflector plate 26 is positioned at a first vertical distance 310 from the substrate 3. A fixed second deflector plate 32 is positioned at a second vertical distance 320 from the substrate 3. In the prior art, only road pavers 1 with fixed deflector plates 32 are known. Due to the height difference 330 between the first vertical distance 310 and the second vertical distance 320 achieved by the adjustable-height deflector plate 26, the amount of paving material 6 entering below the longitudinal conveyor 5 and the drive gear 31 can be reduced.

Claims

1. A road paver (1) for generating a paving layer (2) from paving material (6), said road paver (1) comprising: Ironing board (7). A longitudinal conveying device (5) is used to convey the paving material (6) to the screed (7) in a direction opposite to the travel direction (100) of the road paver (1). A lateral distribution device (9) for distributing the paving material (6) laterally in front of the screed (7) in the direction of travel (100), and A deflector device (24) is disposed in front of the lateral distribution device (9) along the travel direction (100). Its features are, The deflector plate device (24) has a deflector plate (26) with adjustable height.

2. The road paver according to claim 1, characterized in that, During the operation of the road paver (1), the height-adjustable deflector plate (26) is able to move in height.

3. The road paver according to claim 2, characterized in that, During the paving operation of the road paver (1), the height-adjustable deflector plate (26) is able to move in height.

4. The road paver according to claim 1, characterized in that, The height-adjustable deflector (26) is at least indirectly attached to the suspension (19) of the lateral distribution device (9).

5. The road paver according to claim 2, characterized in that, The height-adjustable deflector (26) is at least indirectly attached to the suspension (19) of the lateral distribution device (9).

6. The road paver according to any one of claims 1 to 5, characterized in that, The height-adjustable deflector plate (26) can move in height together with the lateral distribution device (9).

7. The road paver according to any one of claims 1 to 5, characterized in that, The height-adjustable deflector plate (26) is movable in height relative to the lateral distribution device (9).

8. The road paver according to any one of claims 1 to 5, characterized in that, The deflection plate device (24) is basically disposed between the longitudinal conveying device (5) and the transverse distribution device (9).

9. The road paver according to any one of claims 1 to 5, characterized in that, The height-adjustable deflector plate (26) can be moved in height by pneumatic, hydraulic, electric and / or mechanical means.

10. The road paver according to any one of claims 1 to 5, characterized in that, The deflector plate device (24) has a second deflector plate (32), wherein the second deflector plate (32) is not adjustable in height, wherein the second deflector plate (32) is arranged along the travel direction (100).

11. The road paver according to claim 10, characterized in that, The second deflector plate (32) is positioned in front of the adjustable height deflector plate (26) along the travel direction (100).

12. The road paver according to any one of claims 1 to 5, characterized in that, The deflection plate device (24) also has a comb-shaped or mesh-shaped plate (29), wherein the comb-shaped or mesh-shaped plate (29) is height-adjustable.

13. The road paver according to any one of claims 1 to 5, characterized in that, The road paver (1) has a hopper (4) for receiving the paving material (6), wherein the longitudinal conveying device (5) is used to convey the paving material (6) from the hopper (4) to the screed (7).

14. The road paver according to claim 13, characterized in that, The longitudinal conveying device (5) is used to convey the paving material (6) from the hopper (4) to the transverse distribution device (9) in front of the screed (7).

15. The road paver according to any one of claims 1 to 5, characterized in that, The road paver (1) has a control unit (33) configured to adjust the height of the height-adjustable deflector plate (26).

16. The road paver according to any one of claims 1 to 5, characterized in that, The road paver (1) has a pre-scraper device, wherein the pre-scraper device is positioned behind the lateral distribution device (9) along the travel direction (100).

Images