CN102747674A - Laying machine and apparatus for adjusting lateral baffle plate - Google Patents

Abstract

The invention relates to a device for adjusting the lateral stops (2) of a paving device, in particular for adjusting the lateral stops of a paving slab (4) of a paving machine (8) relative to a ground surface (6) board, the lateral baffles are able to move relative to the ground surface (6) by means of at least one first adjuster (10) and one second adjuster (12) operatively connected to at least one frame element (14) of the laying machine (8) movement, whereby the side clearance (d) can be changed, wherein at least one common actuating element (16) and at least one transmission element (18) for driving each adjuster are arranged, the transmission element makes the actuation element ( 16) An operative connection to the individual regulators, such that at least one regulator can be selectively actuated individually or both regulators can be actuated in combination and/or the actuating transmission ratio of at least one regulator can be varied. Furthermore, the invention relates to a paving machine (8), in particular a road making machine with a device of the type described above.

Description

Paving machine and device for adjusting side baffles

technical field

The invention relates to a device for adjusting the lateral abutment of a paving device, in particular of a paving slab of a paving machine, relative to a ground surface, wherein the lateral abutment is connected with the paving machine At least one first adjuster and one second adjuster, to which at least one frame element is operatively connected, are movable relative to the ground surface and thus can vary the lateral ground clearance.

Furthermore, the invention relates to a paving machine for paving road surfaces, having a paving device, in particular a paving slab, for conveying paving material onto the ground, and having at least one lateral baffle of the aforementioned type .

Background technique

Paving machines as described above and similar machines are known from the prior art, wherein road building materials and paving materials can be distributed on the ground surface by means of paving devices, in particular paving slabs, and can be distributed with suitable leveling devices. It is flat and compacted. Primarily in order to prevent such paving material from escaping laterally under the paving slab, such paving devices, especially the paving slab, usually have one or more side baffles, which are usually parallel to the paving machine. Orientation in the conveying direction, and in this case a height adjustment, in particular a change of the lateral ground clearance of the lateral baffles relative to the ground surface, is possible.

The term "paving machine" is understood in the following to mean a construction machine which lays paving materials of different properties (such as asphalt, cement or similar materials) as flat and as possible with the highest possible compression quality and with the correct profile The basis on which it is set, such as a flat foundation. The bearing layer is called the foundation, on which streets, roads, buildings or the like can be built. Regardless of the object to be constructed with such a paving machine, the place of use and the place of use itself are very diverse, wherein paving machines are generally used for road construction. However, other applications are equally possible.

In particular due to the varying surface widths and the varying road widths which occur very frequently in road construction, it is sometimes necessary to adjust the lateral abutment of the paving device of the paving machine over its height. Sometimes it is necessary to raise or lower the side apron as a whole, that is to say increase or decrease the side clearance of the side apron relative to the ground, but it is also possible to just change the front or rear edge of the side apron The position of edges etc. relative to the ground surface. For this purpose, it is known from the prior art to arrange two adjusters acting independently of each other on the side aprons, which are operatively connected to the frame elements of the laying machine and thus allow the side aprons to face each other. The laying machine and thus also moves relative to the ground surface. Within the scope of the present invention, a frame element is to be understood as a component of the laying machine that can be used to fasten the adjuster.

However, the devices known from the prior art for adjusting such side panels are very complicated and in particular are very limited in terms of the free adjustability of the side panels, especially when it comes to adjusting the side panels as a whole or When adjusting the front and rear of the fender independently of each other.

Thus, for example, DE 10 2005 047 096 B3 describes an adjustable side panel, in which two regulators are arranged in the front area and the rear area of the side panel in order to adjust these areas independently of each other. adjust. The two adjusters themselves are connected via a coupling element to a third adjuster, by means of which the lateral apron is adjusted as a whole, in particular its side clearance relative to the ground can be varied. However, this design has the disadvantage that the design is very complex and that the operator has difficulty accessing the regulator.

Contents of the invention

It is therefore the object of the present invention to provide an adjusting device for a side panel or a construction machine with such a side panel, which, while having a very economical and simple construction, allows opposite side Various adjustments are made to the fenders, especially to adjust the side ground clearance relative to the ground surface.

According to the invention, this object is achieved by a device for adjusting the lateral stops of a paving device, in particular of a paving slab, or a paving machine with such a device, according to the independent claims.

That is to say, this object is achieved in particular by a device for adjusting a lateral stop of a paving device relative to a ground surface, in particular a device for adjusting a lateral stop of a paving slab of a paving machine relative to a ground surface , wherein the side baffles are movable relative to the ground surface and thus able to change the lateral ground clearance by at least one first adjuster and one second adjuster, the first adjuster and the second adjuster being in harmony with the laying The first adjuster and the second adjuster have at least one common actuating element for driving the adjuster and at least one transmission element that makes the common actuating element operatively connected to at least one frame element of the machine. The moving element is operatively connected to each of the regulators, so that at least one regulator can be individually driven or both regulators can be driven in combination, and/or the adjustment transmission ratio of at least one regulator can be changed. In particular cases, the device can be used to adjust the lateral ground clearance of at least one lateral edge of the lateral apron relative to the ground surface.

Furthermore, the object is achieved in particular by a paving machine, in particular a paving machine for paving road surfaces, which has a paving device, in particular a paving slab, for conveying paving material to the ground surface and have at least one lateral apron for laterally guiding the paving material, wherein a device according to the above-mentioned type is provided for adjusting the lateral apron, in particular relative to the ground surface The side-to-ground spacing of the side edges of the slab.

According to the invention, the device for adjusting the side flaps has a common actuating element, which can be operatively connected to at least two adjusters via transmission elements and can selectively activate one of them in a targeted manner. One or more such adjusters, and in this way can change the position of the side baffles. That is, only one actuating element is required in order to ensure the adjustability of the side panels. The combination of such an actuating element with a transmission element thus results in a very space-saving and simple construction of the adjustment device for the side panels.

Furthermore, the use of transmission elements not only permits a targeted selection of the corresponding adjuster, but also, in a particular embodiment, the selection of a correspondingly desired transmission ratio in order to allow a slower or faster adjustment of the side flaps.

The at least one adjuster preferably has a screw drive with a threaded element, in particular a screw, and a toothing element, which is threadedly engaged with the threaded element in such a way that the toothing element rotates around the threaded element. Its main extension axis moves along said main extension axis when it rotates, wherein said lateral baffle is operatively connected with said engaging element through a tension element. In this way, the tension element can be moved by means of a technically very simple and robust arrangement, the use of the tension element allowing in particular an approach-crash-protected mounting of the side panel. If the side aprons are "hung" for example by means of tension elements, this will not cause problems if they hit obstacles on the ground surface during paving, since this will only cause the side aprons to stand vertically against the force of gravity. move straight.

Furthermore, a very simple and free positioning of the actuating element and transmission element can be achieved by using the screw drive as the adjuster, in particular when using a special deflection device for the tension element. With regard to the formation of the screw drive, it is possible to use all such devices known from the prior art in which the engagement element can be brought into operative engagement with a screw or similar threaded element, in particular a screw, etc., wherein the engagement The element can be moved by the rotation of the screw.

The common actuating element can essentially have a rotary actuator, in particular a crank, by means of which an adjusting movement of the lateral flap can be carried out by means of a rotary movement. In this way, for example, the actuating element can be formed as a hand crank, which is connected to at least one adjuster via a transmission element in such a way that a rotational movement on the actuating element is transmitted to a corresponding screw or similar threaded element of the adjuster, thereby engaging The element moves linearly. In this case, it is of course also conceivable to use corresponding force application elements, in particular force application elements of the motor and hydraulic system.

The screw or similar threaded element of the first adjuster and the screw or similar threaded element of the second adjuster are preferably arranged coaxially with one another. This allows a very compact construction, wherein the screw is preferably arranged parallel to the plane of extension of the lateral baffles. This allows a very space-saving utilization of space and nevertheless ensures easy access to the assigned actuating elements. Especially when the threaded elements are arranged in parallel, it is advantageous if the threaded elements have oppositely directed threads at least in partial regions. In this way, a very space-saving design of the adjuster can be achieved, since the toothing elements arranged on the threaded element move closer to each other or away from each other when the threaded element is turned in the region of the reversely formed thread. A symmetrical loading of the controller is thereby achieved.

The transmission element is preferably designed in such a way that it selectively permits a force-coupling of the common actuating element to the threaded element of the first adjuster and/or to the threaded element of the second adjuster. That is to say, the transmission element can determine in which way the side panels are to be adjusted. In this way it is possible, for example, to only raise or lower the front side of the side panel by means of the coupling of the actuating element only to the first adjuster, whereas, conversely, the coupling to the second adjuster allows adjustment of the rear side of the side panel. When coupled with two regulators, overall adjustment is possible, wherein, as will be mentioned below, in principle, different transmission ratios can also be set on the two regulators, so that, for example, the front of the side panel The side is raised or lowered faster than the rear side of the side fender.

In particular, the transmission element has a central drive adjustment element with at least one drive coupling element, in particular a drive gear, which is connected to at least one driven coupling element, in particular at least one screw or similar threaded element The driven gear on the top can be meshed, and the central drive adjustment element is operatively connected or can be operatively connected to the actuating element. Such a drive coupling element can be, for example, a linkage which is non-positively engaged with the actuating element and on which at least the drive coupling element, in particular the at least one drive gear wheel, is arranged. The transmission element is here configured such that, by adjusting the drive coupling element, different meshing or non-positive couplings can be achieved with different driven coupling elements, in particular driven gears, on the threaded element of the adjuster. In this way, it is possible to drive different adjusters with a single central actuating element, whereby the adjustment of the side flaps can be made possible by a suitable selection of the transmission concept, in particular by selecting a suitable drive coupling element or driven coupling element. characteristics have an impact.

Within the scope of the present invention, the terms "drive coupling element" and "driven coupling element" are to be understood as any element capable of forming a force-fit engagement with a complementary counterpart element so that the actuating element and the corresponding thread A force coupling is formed between the elements, in particular the screws.

In particular in the above case it is preferred to provide a plurality of drive coupling elements and/or a plurality of output coupling elements which can selectively form a force-locking operative connection with one another while forming at least partially different transmission ratios, Especially meshing. In this way, the adjuster can be designed such that, for example, an adjusting movement at different speeds is possible. It is also possible to have the first actuator move quickly, while the second actuator moves only slowly or does not move at all, or vice versa. All possible combinations for adapting the controller to the required operating event situation are conceivable here.

In a particular embodiment, at least one transmission ratio between at least one drive coupling element and at least one output coupling element is designed such that at least one adjuster is self-locking. This has the advantage that the side panels can be adjusted very simply by means of a correspondingly designed adjuster, without the need to fix the position of the side panels due to the self-locking. However, it is of course also possible here to provide fastenings for the lateral panels, in particular to satisfy safety measures with regard to building supervision. Of course, the magnitude of the transmission ratio is also selected according to the pitch or the thread characteristics of the corresponding threaded elements of the adjuster, in particular the screw, in order to ensure self-locking on the one hand and the simplest possible adjustment of the side flaps on the other hand.

Preferably, the at least one drive coupling element is able to communicate with at least one driven coupling element, in particular at least one threaded element, along an adjustment axis coaxial with the main extension axis of the threaded element or the screw during the linear movement of the central drive adjustment element. Or the driven gear on the screw rod forms and/or releases force locking, especially meshing. The central drive-adjusting element is preferably movable linearly and coaxially with the threaded element, in particular the screw, whereby the corresponding driven coupling element and drive coupling element form a force-locked relationship with each other through this movement, and this allows The corresponding regulator is activated at the predetermined transmission ratio. This configuration of the central drive element makes possible a very space-saving adjuster, especially in combination with the threaded elements of the screw drive, which are arranged parallel to one another, as described above.

Preferably at least one drive setting element is provided, by means of which the movability, in particular the linear movability, of the central drive setting element can be detachably locked. Such a drive adjustment element can be, for example, at least one snap-in element, which can be fixedly mounted on the device or the laying machine and can be releasably connected to a complementary snap-fit engagement element on the central drive adjustment element. In locking engagement or capable of forming locking engagement. All devices known from the prior art for locking a central drive adjustment element can be used here.

As stated above, the invention also relates to a paving machine, in particular for paving road surfaces, having a paving device, in particular a paving slab, for conveying paving material onto the ground, and having at least one Lateral aprons for laterally guiding the paving material, wherein a device according to the aforementioned embodiment is provided for adjusting the height of the side edges of the lateral aprons relative to the ground surface. In order to avoid repetitions, the different embodiments are not described in detail here, but reference is explicitly made to the preceding contained paragraphs.

Further embodiments of the invention are given by the dependent claims.

Description of drawings

The invention is described below on the basis of exemplary embodiments, which are explained in more detail with reference to the drawings. Schematically shown in the accompanying drawings:

Figure 1 shows a schematic representation of a laying machine;

FIG. 2 shows an isometric illustration of an embodiment of the device for adjusting the lateral stops of the paver in FIG. 1;

FIG. 3 shows a lateral view of the embodiment according to FIG. 2;

FIG. 4 shows a longitudinal view of the embodiment according to FIG. 2;

FIG. 5 shows a detail view of the transmission element according to the embodiment of FIG. 2;

6 to 8 show transverse sectional views of the transmission element according to FIG. 5 in different transmission gear states; and

FIG. 9 shows a transverse view of a further embodiment of the device for adjusting the lateral stops of a paving machine from FIG. 1 .

Detailed ways

The same reference symbols are used below for identical or identically acting components, sometimes superscripts being used for distinction.

FIG. 1 shows a paving machine, in particular a paving machine 8 , in which a paving material 35 can be applied to a ground surface 36 by means of a paving device, in particular a paving slab 4 , and compacted and leveled to a flat road surface 34 . The paving material 35 is stored in the material store 3 during the paving process and is conveyed to the paving slab 4 by suitable transport devices.

In order to prevent outflow from the respective paving track during conveying of the paving material 35 and its movement in the paving direction R _F , the paving slab 4 has a lateral stop 2 on each of its two side edges.

The side apron 2 has an adjusting device 1 by means of which the lateral ground clearance d can be adjusted primarily relative to the ground surface 36 or road surface 34 . In particular, raising or lowering the side panels 2 relative to the ground surface 36 can be achieved by targeted activation of the special adjusters 10 , 12 of the device 1 .

As will be described in more detail below, the adjusting device 1 has an actuating element 16 in the form of a hand crank, which can be accessed from the rear side of the laying machine 8 by suitably arranging and configuring the adjusters 10 , 12 .

The adjusting device 1 described here is designed in such a way that it can selectively allow adjustment of the front region 42 or the rear region 44 of the side panel 2 , or both regions 42 , 44 simultaneously.

FIG. 2 shows an isometric view of a side panel of the adjusting device 1 as already shown in FIG. 1 . 3 and 4 show the adjusting device 1 in a transverse view ( FIG. 3 ) or a longitudinal view ( FIG. 4 ).

Shown are side panels 2 which can be adjusted by means of the device 1 in such a way that the lateral ground clearance d relative to the ground surface 36 can be adjusted. Specifically, the side panels 2 can be raised or lowered by means of the device 1 as indicated by the double arrow 40 in FIG. 2 .

According to the invention, the adjusting device 1 also has two adjusters 10 , 12 which can be activated via an actuating element 16 , in particular a hand crank.

According to the invention, the force coupling between the actuating element 16 and the regulators 10 , 12 is realized via a transmission element 18 which optionally allows a connection between the actuating element 16 and the first regulator 10 , the second regulator 12 . force coupling, or allows simultaneous coupling with two regulators 10,12. In addition, the transmission element 18 allows the selection of different transmission ratios, in order to be able to adjust the side panel 2 quickly or slowly, especially in the front area 42 or the rear area 44 of the side panel 2 . Slow adjustments or no adjustments at all.

The two adjusters 10 , 12 here each have a screw drive, characterized by a threaded element, here a screw 22 , and a toothing element 24 formed complementary to the screw.

Each screw 22 has a thread 23 which is in complementary threaded engagement with an engagement element 24 . According to the invention, in this embodiment the two threads 23 of the respective screw 22 are formed opposite to each other.

Each toothing element 24 is connected to the side panel 2 via a tension element 26 designed here as a chain. This embodiment allows the side panel 2 to hit the corner of the ground and thus permits a vertical movement perpendicular to the ground surface 36 upwards (see FIG. 1 ) without causing damage to the side panel or its support.

According to the invention, in this embodiment the screw 22 is arranged with its main extension axis _AS (see FIG. 3 ) plane parallel to the extension plane _ES (see FIG. 3 ) of the lateral baffle 2 . Furthermore, the screws extend substantially parallel to the paving direction R _F (see FIG. 1 ). This enables a very compact construction, in particular the accessibility of the actuating element 16 from the rear side of the laying machine 8 . In particular, in order to achieve an axis-parallel arrangement of the screw rods 22, each adjuster 10, 12 has a deflection element 25, which is arranged on the laying machine 8 and in particular on the frame element 14 (see FIG. 1 ) in such a way that a corresponding Deflection of the tension element 26 .

According to the invention, the transmission element 18 is designed in the embodiment shown here in such a way that, depending on the selection, the linear movement of the central drive adjustment element 28 can be adjusted to the difference between the actuation element 16 and the adjuster 10, 12. force coupling and transmission ratio. This embodiment is shown in detail in FIGS. 5 to 8 .

FIG. 5 thus shows an isometric detail of the transmission element 18 . 6 to 8 show transverse sectional views of the different transmission gears of the transmission element.

The transmission element 18 forms a force coupling element between the actuating element 16 and the screw 22 of the first adjuster 10 or of the second adjuster 12 . The transmission element also has a central drive adjustment element 28 which is movable in a linear movement along an adjustment axis _AS coaxial with the main extension axis A _H of the screw 22 .

In this embodiment, two drive coupling elements, in particular drive gears 29 , are arranged on the central drive adjustment element 28 , which are selectively coupled to the corresponding screw 22 by this linear movement along the adjustment axis _AS . The complementary driven gearwheels 31 form different force-coupling engagements, in particular meshing engagements. Through the precisely defined selection of the corresponding drive gear 29 and output gear 31 , it is possible in particular to set the transmission ratio required for adjusting the side flap 2 and thus in particular the adjustment speed. By selectively arranging corresponding coupling elements or gearwheels 29, 31 along their axes A _S or A _H , the transmission elements can be constructed such that only the first regulator 10, the second regulator 10 can be selectively activated by the actuating element 16. regulator 12 or activate both regulators simultaneously.

These different transmission gears are shown in detail in FIGS. 6 to 8 .

Thus, for example, FIG. 6 shows a transmission gear in which only the second adjuster 12 or its screw 22' can be activated by the actuating element 16. In this way, the front region 42 of the side panel 2 shown in FIG. 2 can be adjusted without changing the position in the rear region 44 . In addition, the drive gear 29 of the central drive adjustment element 28 is actively engaged, in particular meshed, with the driven gear 31' of the second adjuster 12 or screw 22', so that when the central drive adjustment element 28 rotates, it complementarily causes the second The screw 22' of the regulator 12 turns. As shown in particular in FIGS. 2 and 3 , this rotation results in a movement of the engagement element 24' and thus an adjustment process in the front region 42 of the side panel 2 .

7 shows the same embodiment as FIG. 6 , here the central drive adjustment element 28 of the transmission 18 is now moved linearly along the adjustment axis _AS , so that the drive gear 29 is in active engagement with the output gear 31 of the first adjuster 10 . Thus now only the first adjuster 10 is activated when the actuating element 16 is actuated, whereby an adjusting movement of the rear region 44 of the side panel 2 is achieved (see FIG. 2 ).

Finally, FIG. 8 shows a transmission gear in which the two adjusters 10 , 12 can be driven via the actuating element 16 . In this transmission gear, the central drive setting element 28 is shifted along its main extension axis _AS such that the second drive setting element 29 ′, in particular the drive gear 29 , formed or arranged on the central drive setting element 28 They are respectively operatively engaged with complementary driven gears on the screw rods 22 of the two regulators 10 , 12 . Thus, both adjusters 10 , 12 are activated by rotation of the central drive adjustment element 28 .

Furthermore, the transmission element 18 has a yoke element 19 in which the two spindles 22 of the first and second adjuster 10 , 12 are rotatably mounted. Furthermore, the yoke element has a bearing channel 21 , via which a central drive element 28 is guided from the actuating element 16 into the region of the output gear 31 of the first and second adjuster 10 , 12 . The central drive element 28 is here accommodated in the bearing channel 21 in such a way that the central drive element is both rotatable about the longitudinal axis _AS and also linearly displaceable. Through this linear mobility, it is possible to adjust to different transmission gears. As mentioned above, the actuation of the actuator is effected by the rotation of the central drive adjustment element 28 .

In order to prevent unintentional linear displacement of the central drive adjusting element 28 , in this embodiment a locking element 32 is provided which releasably locks the longitudinal displaceability of the central drive element 18 . Such a locking element 32 can be, for example, a releasable snap connection or another locking device known for this purpose from the prior art.

FIG. 9 shows a second embodiment of the adjusting device 1 , the difference here from the previously mentioned embodiments being the transmission element 18 . Here the actuating element 16 is also force-fittingly coupled via the transmission element 18 to the two adjusters 10 , 12 in such a way that by actuating the actuating element 16 a position in the front region 42 , the rear region 44 or both can be achieved. Adjust the side fence 2 in one zone.

Here, however, the transmission element 18 has a plurality of different gear wheels which can be force-coupled or meshed with one another in such a way that different transmission ratios result. In this way, the adjustment speed of the side panels 2 can be varied.

Thus, for example, a transmission gear can be set by suitably selecting the drive gear 29 meshing with the output gear 31 , wherein, for example, a fast gear is achieved, whereby the adjustment can be accelerated if required.

It is also possible to couple the gears to one another in such a way that, for example, the first adjuster 10 is operated in fast gear and the second adjuster 12 is operated in normal gear. This makes it possible to adjust the front zone 42 and the rear zone 44 simultaneously, but at different speeds. Of course, two or more drive coupling elements or driven coupling elements may be used here to provide two or more different "gears" or gear ratios.

The self-locking of the side panel 2 can be achieved by a suitably selected transmission ratio or a suitable coordination of the pitch of the transmission element 18 and the screw rods 10 , 12 . This means that although the side apron 2 can be adjusted very simply by means of the actuating element 18 , displacement of the side apron due to its own weight or, for example, due to an additional limited load is prevented.

Claims (12)

1. Device for adjusting the lateral stops (2) of a paving device, in particular for adjusting the lateral stops (2) of a paving slab (4) of a paving machine (8) relative to a ground surface (6) ), wherein the lateral baffle (2) is movable relative to the ground surface (6) by at least one first adjuster (10) and one second adjuster (12), thereby being able to move relative to the ground The surface (6) changes the ground clearance (d) of the side panels and in particular their sides, the first and second adjusters are in contact with at least one frame element (14) of the laying machine (8) ) operative connection, characterized in that the device has at least one common actuating element (16) for driving the regulators (10, 12) and at least one transmission element (18), which transfers the A common actuating element (16) is operatively connected to the adjusters (10, 12) in such a way that selectively at least one adjuster (10, 12) can be actuated individually or both adjusters (10, 12) can be actuated in combination. ), and/or the adjustment transmission ratio of at least one regulator (10, 12) can be changed. 2. The device according to claim 1, characterized in that at least one regulator (10, 12) has a screw drive (20) with at least one screw (22) or similar threaded element and an engaging element (24) threadedly engaged with said threaded element (22) such that the engaging element moves along the main axis of extension when the threaded element (22) is rotated around its main axis of extension (A _H ), wherein The lateral apron (2) is operatively connected to the engagement element (24) via a tension element (26). 3. The device according to one of the preceding claims, characterized in that the common actuating element (16) has a rotary actuator and in particular a crank (17), by means of which a lateral movement can be performed by means of a rotary movement. Adjustment movement towards the flap (2). 4. According to one of the preceding claims, especially one of claim 2 or 3, characterized in that the threaded element (22) of the first adjuster (10) and the thread of the second adjuster (12) The elements ( 22 ′) are arranged coaxially with respect to one another, in particular have oppositely directed threads ( 23 ) at least in a subregion. 5. The device according to one of the preceding claims, in particular one of claims 2 to 4, characterized in that the threaded element (22) is parallel to the plane of extension (E _S ) settings. 6. The device according to one of the preceding claims, in particular one of claims 2 to 5, characterized in that the transmission element (18) is configured such that the transmission element selectively allows the joint actuation The element (16) is force-coupled to the threaded element (22) of the first adjuster (10) and/or to the threaded element (22') of the second adjuster (12). 7. The device according to one of the preceding claims, in particular one of claims 2 to 6, characterized in that the transmission element (18) has a central drive adjustment element (28), the drive adjustment element There is at least one drive coupling element, in particular a drive gear (29), which can form a non-positive engagement with at least one driven coupling element, in particular a driven gear (31), on at least one threaded element (22) , in particular a meshing can be formed, wherein the central drive adjustment element (28) is operatively connected or can be operatively connected to the actuating element (16). 8. According to one of the preceding claims, particularly the device according to claim 7, characterized in that a plurality of drive coupling elements (29) and/or a plurality of driven coupling elements (31) are provided, the drive The coupling element and the driven coupling element are selectively engageable with each other to form different transmission ratios. 9. According to one of the preceding claims, especially one of claim 7 or 8, characterized in that at least one of the at least one driving coupling element (29) and at least one driven coupling element (31) The transmission ratio is designed such that at least one regulator (10, 12) is self-locking. 10. The device according to one of the preceding claims, in particular one of claims 7 to 9, characterized in that at least one drive coupling element (29) is Engageable with the forming and/or disengaging action of at least one driven coupling element (31) on the at least one threaded element (22) along an adjustment axis ( _AS ) coaxial with the main extension axis of the at least one threaded element (22) . 11. Device according to one of the preceding claims, in particular one of claims 7 to 10, characterized in that at least one locking element (32) is provided, by means of which all locking elements can be releasably locked. The movability of the central drive adjustment element (28), in particular its linear movability. 12. A paving machine (8), such as a paving machine (8) for paving road surfaces (34), with a paving device, in particular a paving slab (4), for conveying paving material (35) to on the ground surface (36) and has at least one lateral baffle (2) for laterally guiding the paving material (35), wherein a device according to one of the preceding claims is provided for Said ground surface (36) adjusts said means (1) of said lateral barrier (2).

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