EP3149245A1

EP3149245A1 - Screed assembly comprising a work station

Info

Publication number: EP3149245A1
Application number: EP14727476.5A
Authority: EP
Inventors: Klaus Oettinger
Original assignee: Joseph Voegele AG
Current assignee: Joseph Voegele AG
Priority date: 2014-05-28
Filing date: 2014-05-28
Publication date: 2017-04-05
Anticipated expiration: 2034-05-28
Also published as: CN106414852A; EP3149245B1; JP6393783B2; BR112016027799B1; US9963838B2; CN106414852B; WO2015180774A1; BR112016027799A2; JP2017519920A; PL3149245T3; US20170198445A1

Abstract

The application relates to a screed assembly (1) for laying a road surface (3), said screed assembly (1) determining a working width (W), viewed in the working direction (R), for the laying of the road surface (3), and a working station (9) for an operator (P) being mounted on the screed assembly (1). The working station (9) is mounted on the screed assembly (1) in a vibration-decoupled manner, such that the transmission of vibrations from the screed assembly (1) to the working station (9) can be reduced or prevented.

Description

Screed arrangement with workplace

The invention relates to a screed assembly with a workstation according to the preamble of claim 1.

For the installation of road surfaces screeds are used in practice. The built-in floor is pulled by a road paver, from whose goods bunker installation material is distributed in front of the screed for installation by means of a conveying device.

Conventionally, individual functions of the screed are regulated from the driver's cab of the paver. For example, different working parameters can be set on the components of the screed from the driver's cab. Alternatively, the functions of the screed can be controlled by means of a control unit which is attached to the side of the screed. The staff usually operates the control unit while it runs alongside the screed during installation, or from a catwalk, which is mounted transversely behind the screed on the screed frame. From there, however, a flawless control of the control unit is almost impossible and the staff must concentrate on several things at the same time, which can lead to accidents. In addition, the staff to operate the attached to the screed control unit comes very close to the work area of the screed, where accidents at work can never be completely ruled out.

In fact, the catwalk is not intended as a workplace for a longer stay on it, for example, to control from there, the control unit. Namely, the catwalk should primarily allow the operating personnel to cross the freshly installed road surface without thereby stepping on the hot, possibly still uncomplicated inserted material, which could lead to undesired impressions.

However, because the operators have so far used the catwalk also for a longer stay on it, in particular to control the operating unit and to observe the installation from there, pose for the operating personnel certain risks. Above all, the catwalk offers only a narrow transition, from which one can easily slip off, especially in rainy weather. In addition, so far only a limited operation of the operating unit can be carried out from the catwalk only with small types of screed. The object of the present invention is to provide a screed arrangement which improves the occupational safety for the operating personnel and ensures optimized installation, wherein in particular the installation of a new road surface can be carried out by means of the screed arrangement in such a way that there are fewer health risks comes for the operator.

This object is achieved by a screed assembly having the features of claim 1. Advantageous developments of the invention are specified in the subclaims.

The invention relates to a screed assembly for installation of a paving, said screed assembly seen in the working direction determines a working width for the installation of the pavement and has a workplace for an operator, the workplace is vibration-decoupled mounted on the screed assembly, so that transmission of vibrations of the screed assembly can be reduced or prevented in the workplace. The operating staff can therefore spend a long time comfortably on the workstation to observe the installation from there and control if necessary, without causing health risks for the operating personnel. In addition, the vibration-decoupled workplace provides a secure location on the screed assembly where sensitive equipment, such as gauges, can be stored and stored. Vibrations are speed-dependent oscillations by moving components of the screed arrangement as well as impacts, leveling movements or other adjusting movements of the screed arrangement.

In an advantageous embodiment of the invention, the workplace is attached to a side slide of the screed assembly to be associated with an outer region of the working width. The side slider is an especially mechanically or hydraulically (height) adjustable unit, which is attached to the lateral boundary of the working width respectively at outer ends of the screed assembly. Since in most screed arrangements, the basic structure of the respective sideshift is substantially the same, regardless of whether it is a rigid screed assembly, a screed assembly with broadening parts or a screed assembly with pull-out parts, the workplace and its attachment to the side shifter could be screed uniform across types, which leads to cost savings in production.

In addition, from the point of the sideshift from the work station attached thereto, the outer area of a freshly installed pavement can be well seen, which is particularly advantageous in impact-to-collision work, i.e. when pavements are made parallel to each other. Furthermore, numerous control functions of the screed assembly can be well controlled from this point. For example, from there an operating unit, which is fastened laterally to the screed arrangement, primarily on the side slide, can be controlled in order to set, for example, temperatures at components or vibration speeds of compressor components of the screed arrangement.

It is particularly advantageous if the workstation is fastened to a side slide carrier of the side slide, for example flanged or welded on. The side slider support extends substantially horizontally along lateral ends of the ball assembly, with a height-adjustable side slider sheet being supported inwardly of the screed assembly. The side slide carrier forms a sturdy base for attaching the workstation. In addition, the attachment of the workplace on the side slide carrier has the significant advantage that it can be structurally identical in all screed types, and that the natural vibration behavior of the side sill regardless of the set working width of the screed assembly is essentially immutable, so that the vibration isolation of the workplace at this point particularly reliable can be guaranteed and can be adjusted well.

It is expedient if the workplace comprises a fastening unit, by means of which it is preferably fastened detachably to the screed arrangement, in particular the side slider support. The mounting unit also allows the workstation to be retrofitted to a screed assembly of any type, and that the workstation can arbitrarily switch between different screed types.

In a further advantageous variant of the invention, the fastening unit comprises a vibration decoupling unit. This reduces vibrations or even prevents vibrations from being transmitted to the workplace. The thus vibration-decoupled workstation therefore provides a place for the operating personnel, where it is longer Spend time, for example, over eight hours, without taking health-related risks.

Preferably, the vibration decoupling unit comprises at least one mass-spring system and / or a shock absorber. The mass-spring system, in particular, can keep away from the workplace speed-related vibrations of movable components of the screed assembly, which leads to a quiet position or seat of the operating personnel on the workstation. The shock absorber can dampen shocks that may occur, for example, when starting the paver, when crossing bumps or when leveling the screed assembly.

It is also conceivable that the shock absorber of the vibration decoupling unit is automatically reversibly adjustable in order to bring the workplace always in a desired starting position. Preferably, this is a closed liquid spring, which, so to speak, is easy to install and to maintain as a closed unit. Alternatively, a hydraulic shock absorber would be used, which is connected to an existing hydraulic system of the screed assembly. Expedient, in particular cost-effective, however, is also the use of a mechanical shock absorber and / or a gas pressure shock absorber.

According to an advantageous embodiment, the mass-spring system can be biased between the workstation and the screed assembly to thereby set a desired hardness therein. The degree of hardness of the mass-spring system can thereby be individually adapted to different heavy operators.

The vibration decoupling unit is particularly user-friendly when a preload force of the mass-spring system can be set manually and / or automatically. A manual adjustment could be realized, for example, by a screw design, by means of which the workstation is screwed against the natural extension of the mass-spring system. An automated solution could include, for example, an electric motor as a drive, which presses the workplace to a desired biasing force against the expansion of the mass-spring system by its activation. It would also be conceivable to functionally couple the operation of the electric motor to a weight detection system, wherein the electric motor controls the preload force on the mass-spring system automatically in response to a detected weight of the operator located on the workstation.

According to an advantageous variant of the invention, the shock absorber has a variable damping hardness. This could be realized, for example, by adjusting the displacement volume of a damper fluid per unit of time. Similar to the mass-spring system, the damping hardness could also be manually and / or automatically adjustable to allow the operator a maximum individualization of the workplace.

It is particularly advantageous if the fastening unit comprises a swinging bearing, which is mounted on the screed assembly and the workplace hingedly coupled thereto, wherein the workplace is movable by means of the swing bearing between a stowage position and a working position is particularly advantageous. Depending on requirements, this can be used to fold out the workplace or, in particular, to bring it into the stowed position for transporting the screed assembly. It is also useful if the screed assembly in addition to the workplace has a catwalk for the operator on which the operator can also cross the working width during installation behind the screed assembly. Preferably, the workstation comprises a preferably height-adjustable floor panel on which the operator can stand safely, the walkway extending along a greater range of the working width of the screed assembly than the floorboard of the workstation. Preferably, the bottom plate seen in the direction of work to a greater depth than the catwalk, so that the operator can stay on it safely for a long time.

To prevent tripping, the bottom plate is arranged substantially at the same height as the catwalk. Seen from the rear, the floorboard of the workplace looks like an extension of the catwalk.

Alternatively, however, the bottom plate could also be arranged at a higher level than the catwalk, which may result in better Einsehmöglichkeiten in the installation and the screed assembly for the operator located on the workstation.

A particularly compact embodiment of the invention provides that the bottom plate is arranged in alignment with the catwalk, ie, that the bottom plate in series with the Catwalk is arranged and substantially the same depth as the catwalk comprises. This may be particularly advantageous for the transport of the screed assembly, because the bottom plate of the workplace does not protrude further back than the catwalk. In addition, particularly few edges and corners between the bottom plate and the catwalk are formed, which could trigger the operator.

The workplace can be set up particularly conveniently for the operator when the workplace comprises a seat, in particular a height-adjustable seat. The comfort could be further increased by the air-suspension of the seat.

For use in bad weather, the workplace is particularly well if it is equipped with a weather roof. However, the weather roof also acts as a shade dispenser, so that the operator is not exposed to the blazing sun on the workplace in fine weather.

Preferably, a control unit for controlling functions of the workstation, for example, the height adjustment of the bottom plate and / or the respective degrees of hardness of the mass-spring system and / or the shock absorber, and / or the screed assembly is installed on the workplace. The vibration-decoupled workplace provides a safe place for storage and trouble-free operation of the sensitive and expensive operating unit. By means of the control unit, for example, the leveling of the screed assembly, a tamper speed, temperatures of the heating elements and / or the working width can be adjusted in a Ausziehbohlenanordnung. Warning signals can also be output by the operating unit in order to warn the operator on the paver or to indicate to the operator that he should change a parameter of the installation run, for example a delivery volume of the deposit. The operating unit can also have a display on which current setting parameters of the screed arrangement can be displayed.

Furthermore, it is possible for the operating unit provided on the workstation to be functionally connected to an electronic measuring unit which is fastened to the screed arrangement or directly to the workstation. The measuring unit can be designed, for example, to measure a distance to the ground, ie to the ground on which the paver travels, to the side of the screed arrangement. With regard to this distance, for example, the leveling of the screed assembly can be automated or a layer thickness of the newly laid road surface can be calculated. If the measuring unit is mounted on the vibration-decoupled workstation, then the measurement result could be improved. In addition, no harmful shocks would be transmitted to the measuring unit there. It is also expedient if a collision protection unit is arranged on the workstation which can be used to record objects approaching the workstation. In particular, the collision protection unit can be configured such that it determines the distance from a workstation to a rolling vehicle traveling behind, and that as soon as it approaches too close to the workstation, it issues warning signals itself or via the optionally connected control unit. These signals can be formed either acoustically or visually.

Particularly comfortable, the workplace is then designed for the operator, if he also has a suction unit, which is designed for the extraction of vapors of the road surface to be incorporated. The suction unit can either be designed independently or connected to a suction unit already assigned to the screed arrangement. In particular, the suction unit is designed such that it directs the ascending vapors under the floor panel to the rear behind the workstation and / or collects the rising vapors and this promotes via a planned exhaust pipe over the roof of the paver and / or the workplace.

For night work, it is helpful if the workplace includes a lighting unit, primarily to illuminate the workplace itself and the outer area of the working width. The lighting unit helps the operator in particular when entering or leaving the workplace and to control the control unit. The workplace can be made even more comfortable by having an air conditioning unit, in particular a heating and / or cooling unit formed thereon. This allows the operator to cool or heat the workplace depending on the weather. According to a preferred embodiment, the above-mentioned seat of the workplace is tempered with it. Suitably, the workplace or at least its essential structure is releasably secured to the screed assembly so that it can be removed overnight from the screed assembly. can be used to protect the units installed thereon, for example the operating unit or the measuring unit, against theft.

Particularly advantageously, the workplace can be used on a screed assembly, which is designed as a Ausziehbohle. This comprises in particular a main and Ausziehteile which are adjustable relative to the main beam sideways to the working direction to vary the working width infinitely. The workstation is preferably mounted vibration-decoupled on one of the pull-out parts, in particular on the side slide carrier of an extension part. It is thus possible to adjust the workspace together with the pull-out sideways relative to the main screed, so that the workplace is always assigned to the outer area of the newly installed road surface regardless of the set working width. In addition, on the side slide carrier of the pull-out part, essentially the same natural vibration behavior is always present, independently of the adjusted working width, so that the workstation can be reliably stored there in a vibration-decoupled manner. At this point, the installation, measurements and also the control of other functions of the screed arrangement can be monitored well.

It is also conceivable that in each case a workstation is fastened vibration-decoupled at both Ausziehteilen the Ausziehbohle, the respective jobs can match in their construction and their function. Customized, however, the respective workstations can be equipped with different functions. According to a further embodiment of the invention, the screed assembly is a widenable screed assembly with a main screed and selectively thereto laterally attachable widening parts to increase the working width, the workplace is mounted vibration-decoupled at one or both widening parts.

The advantages described above can be exploited particularly well when the screed assembly according to the invention is attached to a self-propelled paver.

In the following, an advantageous embodiment of the invention is illustrated in more detail with reference to a drawing. In detail show:

1 is a paver with a screed assembly according to the invention, 2 a workplace with a seat,

3 a standing workstation,

4 shows a schematic representation of the screed arrangement in which the workstation is at the same height as the catwalk, FIG. 5 shows a schematic representation of the screed arrangement with a workstation arranged above the catwalk,

Fig. 6 shows a secured by means of a swing bearing workplace and

Fig. 7 shows a collapsible workplace of the screed assembly according to the invention. Figure 1 shows a side view of a paver 100 with an attached screed assembly 1. The screed assembly 1 is pulled by the paver 100 on a planum 2 in the direction R to produce a new road surface 3. The road surface 3 consists in particular of a bituminous material.

The screed assembly 1 has a main screed 4, which is attached via a pull arm 5 on the chassis of the paver 100. In the working direction R seen outside the main screed 4, a side pusher 6 is attached. The side shifter 6 forms a boundary for the working width W (see FIG. 5) of the road surface 3 to be installed and prevents any built-in material distributed in front of the screed arrangement 1 from being forced laterally past the screed arrangement 1. The side slider 6 is fastened to the main pile 4 by means of a side slide carrier 7. Adjustment modules 8, by means of which the height of a side slide plate 35 attached thereto of the side slide 6 relative to the side slide carrier 7 and to the main pile 4 can be adjusted, are attached to the side slide carrier 7. The adjustment modules 8 can be mechanically or hydraulically adjustable.

Furthermore, FIG. 1 shows that a vibration-decoupled workstation 9 is fastened on the rear of the side slide carrier 7. The work station 9 occupies an area behind the main screed 4 and offers the operator the opportunity to stand or sit on it for a long time (see FIG. 2) in order to observe in particular the shoring of the road surface 3 in an outer work area of the screed arrangement 1. The workplace 9 is flanged to attachment points 10 of the side slider 7. The workplace 9 further has a fastening unit 1 1, by means of which the work station 9 is attached to the side slide carrier 7. The fastening unit 1 1 has a vibration decoupling unit 12, which is designed to prevent vibrations from the screed assembly 1, in particular from the side slide 6, being transferred to the workstation 9. The vibration decoupling unit 12 is arranged between two mutually perpendicular mounting plates 13a, 13b of the fixing unit 1 1. The seen in the direction R front mounting plate 13a is connected to a flange plate 36 shown in dashed lines, which is flanged on an inner side of the Seitensch ieberträgers 7 by means of suitable fastening means to the attachment points 10. The rear mounting plate 13b, viewed in the direction of movement R, holds a substantially horizontally mounted bottom plate 14 of the workstation 9. The bottom plate 14 offers the operating personnel sufficient space to stand on it and to stay for a longer period of time.

In FIG. 1, the vibration decoupling unit 12 has a mass-spring system 12a and a shock absorber 12b. The mass-spring system 12a prevents natural oscillations of the sideshift 6 from being transmitted to the workstation 9. The shock absorber 12b absorbs shocks by the screed assembly 1.

Figure 2 shows a side view of the workplace 9 as a seat workplace. The vibration decoupling unit 12 is in this case released from the front fastening plate 13a from FIG. 1 seen in the working direction R. For quick release and securing the workplace 9, a quick mounting system 36a, 36b is attached to the mass-spring system 12a and to the shock absorber 12b. On the bottom plate 14, a seat 15 is arranged. In the working direction R seen in front of the seat 15, a control unit 16 is positioned. The operating unit 16 is supported by a holder 17, which is fastened to the bottom plate 14. The operating unit 16 is thus also vibration-decoupled stored at the workplace 9.

On the bottom plate 14, a suction unit 18 is further formed, which is designed for the extraction of vapors of the newly installed pavement 3. The suction unit 18 can be connected to an existing exhaust system of the paver 100, in order to extract vapors from the working area of the screed assembly 1. Alternatively, the suction unit 18 as an independent unit at the workplace 9 for Suction of the vapors, in particular from the outer region of the screed assembly 1, be formed.

Rear of the bottom plate 14 a collision protection unit 19 is further arranged. The collision protection unit 19 is designed to detect an environment relative to the workstation 9 in order to issue an alarm signal either by itself or the operating unit 16 when an object, for example a trailing roller vehicle, comes too close to the workstation 9.

FIG. 2 also shows a heating / cooling unit 20, which is fastened to the base plate 14. The heating / cooling unit 20 can be controlled by the operating unit 16, wherein it can also be designed to automatically regulate the cooling / heating power as a function of the ambient temperature of the workstation 9. In particular, the heating / cooling unit 20 may be designed to temper the foot area of the workstation 9 and / or the installed seat 15.

For improved work safety, the work station 9 according to FIG. 2 comprises a frame 21 with a pivotable door brace 22. If an operator P (see FIG. 3) wishes to enter the work station 9 according to FIG. 2, he should move the door brace 22 upwards or downwards fold. If he is on the seat 15, then he should bring the door strut 22 in its horizontal position shown in FIG 2 for its safety. The frame 21 may also provide attachment options for attaching a tarp or cover that can be attached as a windshield on the frame 21.

Figure 3 shows a side view of the work station 9 of Figure 2 without the seat 15 and the frame 21, wherein the operator P stands on a tread element 23 of the work station 9, which is arranged on the bottom plate 14. The tread element 23 could be, for example, a rubber mat, in particular with a friction profile, so that the operator P can stand on the workstation 9 in a non-slip manner and also has a pleasant, soft stand on it. The vibration decoupling could thereby be improved for the operator P if the tread element 21 is made of a shock absorbing material, for example of a cushioning polyurethane. Furthermore, FIG. 3 shows a lighting unit 24, which is fastened to the holder 17 for illuminating the workstation 9. The luminous intensity of the illumination unit 24 can preferably be regulated by means of the control unit 16.

The respective components of the workplace 9 shown in FIGS. 2 and 3 can be combined with one another on customer request. For example, it is conceivable that the standing workstation shown in FIG. 3 is equipped with a frame 21 from FIG. Just as well, the tread element 23 could also be arranged on the bottom plate 14 of the seat workplace shown in FIG. However, all workstations 9 according to FIGS. 2 and 3 have in common that they and the components installed thereon can be attached to the screed assembly 1 in a vibration-decoupled manner.

Figure 4 shows in the direction R from a perspective behind the screed assembly 1 schematically the positioning of the workstation 9 relative to a catwalk 25 which is attached to the main screed 4 of the screed assembly 1. The catwalk 25 normally extends substantially the full width of the main plank 4 and allows the operator P to walk around behind the plank assembly 1 without stepping on the newly installed pavement 3.

As can be clearly seen in Figure 4, the catwalk 25 is formed indented in the outer region of the screed assembly 1, so that it does not extend beyond the entire working width W behind the screed assembly 1. At this outer area, where the catwalk 25 according to Figure 4 is no longer formed, there is the workplace 9, the bottom plate 14 occupies substantially the recessed area of the catwalk 25 and is at the same height as the catwalk 25.

As already shown in FIG. 1, the work station 9 is also fastened to the side slide carrier 7 in FIG. Because the bottom plate 14 according to Figure 4 is at the same height level as the catwalk 25, the workplace 9 can also commit well from the catwalk 25 and vice versa. In addition, such a height-adjusted positioning of the bottom plate 14 to the catwalk 25 results in a coherent appearance, the bottom plate 14 seen from the rear as an extension of the catwalk 25 acts. In FIG. 4, a dashed-dotted line 26 extends through the main pile 4 and is intended to indicate that the sheet pile arrangement 1 shown in FIG. 4 also acts as a drawing-out pile Z can be formed. The Ausziehbohle Z would therefore Ausziehteile 27, which are adjustable relative to the main beam 4 sideways in Ausziehrichtung B to extend the working width W of the screed assembly 1 infinitely. By adjusting the pull-out 27 in Figure 4 relative to the main pile 4, the workplace moves 9 with the pull-out 27 outwardly with, causing the bottom plate 14 away from the catwalk 25. As can be seen in FIG. 4, an extension 28, which projects telescopically into the catwalk 25, is fastened to the base plate 14. In a sideways outward movement of the Ausziehteils 27, therefore, the extension 28 moves out of the catwalk 25 to close the resulting between the bottom plate 14 and the catwalk 25 gap.

Even if the screed assembly 1 shown in Figure 4 is shown as Ausziehbohle Z, this could just as well be designed as a rigid screed assembly 1, which optionally includes only the main screed 4 and the side-mounted workstation 9, or alternatively from the main screed 4 and widening parts 27 ' exist, which are fastened to the main screed 4 for expansion of the working area W. Although the widening parts 27 'do not allow continuous widening of the working area W, as is possible by means of the pull-out parts 27 of the pull-out screed Z, they can fix the work station 9 on the side slide carrier 7 formed thereon as well.

FIG. 5 shows the screed arrangement 1 from a perspective view according to FIG. 4, wherein the base plate 14 of the work station 9 is arranged over an outer section of the catwalk 25. The catwalk 25 extends over the entire working width W. As in FIG. 4, the work station 9 according to FIG. 5 is fastened to the side slide carrier 7. The embodiment variant according to FIG. 5 can result, in particular, when the workstation 9 is connected to a road paver, i. H. retrofitted to the screed assembly 1.

Nevertheless, both FIG. 4 and FIG. 5 show that the work station 9 is in each case within the working width W indicated in FIG. 5 and does not protrude beyond the side slide carrier 7.

FIG. 6 shows a side view of a variant embodiment according to which the fastening unit 1 1 has an oscillating bearing 30 and a prestressable buffer 31. The swing bearing 30 and the biasable buffer 31 are between the attachment plates 13a, 13b arranged. The oscillating bearing 30 optionally comprises a spring element 32, by means of which the workstation 9 can be brought more easily into an upwardly folded stowed position. The damping hardness of the prestressable buffer 31 can be adjusted by a biasing force F, so that the workstation 9 can be adapted to the weight of the operator P in a user-specific manner.

Figure 7 in side view shows a space-saving stowable variant of the workplace 9, which is adjustable between a working position and a stowed position. In this case, the bottom plate 14 can be moved between a substantially horizontal, unfolded position in which it is in the working position and a vertical, folded-up position in which it is in the stowed position. The bottom plate 14 rotates about a radial bearing 33, which fixes the bottom plate 14 to the rear mounting plate 13b of the work station 9 as viewed in the working direction R. In the stowed position, the bottom plate 14 abuts against the rear attachment plate 13b, whereby the work station 9 can be reduced to a minimal amount of congestion. The workstation 9 according to the invention can be fastened in a vibration-decoupled manner to all known plank arrangements, whether on a rigid screed, a pull-out screed or on widening parts of a rigid screed. For the operator P, this results in a comfortable workstation 9, from which he can perform different functions, for example leveling functions, measuring functions and / or adjustments of the working width of the screed assembly 1. The workplace 9 can be retrofitted to existing screed arrangements 1 or arranged individually according to customer requirements relative to the catwalk 25.

The work station 9 according to the invention offers a new comfort module, as has hitherto not been used on road pavers, in particular on a screed arrangement. In addition to the additional comfort for the operator, the workstation 9 also makes it possible to store sensitive and expensive operating instruments, for example the operating unit 16, in a vibration-decoupled manner so that these instruments can be better protected and remain operational for longer.

Claims

claims

1 . Screed assembly (1) for installing a road surface (3), the screed assembly (1) seen in the working direction (R) determines a working width (W) for the installation of the road surface (3), and wherein the screed assembly (1) a workstation ( 9) for an operator (P) is mounted, characterized in that the workstation (9) vibration-decoupled to the screed assembly (1) is mounted, so that a transmission of vibrations of the screed assembly (1) on the workspace (9) reducible or preventable is.

2. screed assembly according to claim 1, characterized in that the work station (9) on a side slide (6) of the screed assembly (1) is fixed to be associated with an outer region of the working width (W).

3. screed assembly according to one of the preceding claims, characterized in that the screed assembly (1) comprises a fixing unit (1 1), which removably attaches the workstation (9) to the screed assembly (1).

4. screed assembly according to claim 3, characterized in that the fastening unit (1 1) comprises a vibration decoupling unit (12) which has at least one mass-spring system (12a) and / or a shock absorber (12b).

5. screed assembly according to claim 4, characterized in that the mass-spring system (12 a) biased between the workstation (9) and the screed assembly (1) is fixed.

6. screed assembly according to claim 5, characterized in that a biasing force (F) on the mass-spring system (12a) manually and / or automatically adjustable.

7. Plank assembly according to one of the preceding claims 4 to 6, characterized in that the shock absorber (12b) has a variable damping hardness.

8. screed assembly according to claim 7, characterized in that the damping hardness is manually and / or automatically adjustable.

9. screed assembly according to one of the preceding claims 3 to 8, characterized in that the fastening unit (1 1) comprises a swing bearing (30), by means of which the workstation (9) between a stowage position and a

Working position is movable.

10. screed assembly according to one of the preceding claims, characterized in that the screed assembly (1) comprises a catwalk (25) for the operator (P) and the workstation (9) comprises a bottom plate (14) on which the operator (P) can stand, with the catwalk (25) along a larger

Area of the working width (W) of the screed assembly (1) as the bottom plate (14) of the workplace (9) extends.

1 1. Screed assembly according to claim 10, characterized in that the bottom plate (14) is arranged substantially at the same height as the catwalk (25).

12. screed assembly according to claim 10, characterized in that the bottom plate (14) is arranged at a higher level than the catwalk (25).

13. Screed assembly according to one of claims 10 to 12, characterized in that the bottom plate (14) viewed from above is aligned with the catwalk (25).

14. Plank assembly according to one of the preceding claims, characterized in that the workstation (9) comprises a seat (15) for the operator P.

15. Plank arrangement according to one of the preceding claims, characterized in that the workstation (9) comprises a weather roof (34).

16. Plank assembly according to one of the preceding claims, characterized in that at the workstation (9) an operating unit (16) for controlling the workstation (9) and / or the screed assembly (1) is installed.

17. Plank arrangement according to one of the preceding claims, characterized in that the workstation (9) has a collision protection unit (19) by means of which the workstation (9) approaching objects can be detected.

18. Screed assembly according to one of the preceding claims, characterized in that the workstation (9) comprises a suction unit (18) which is designed for the extraction of vapors of the pavement (3) to be installed.

19. Screed assembly according to one of the preceding claims, characterized in that the workstation (9) comprises a lighting unit (24) to illuminate the outer region of the working width (W).

20. Screed assembly according to one of the preceding claims, characterized in that the workstation (9) comprises a heating and / or cooling unit (20).

21. Screed assembly according to one of the preceding claims, characterized in that the screed assembly (1) comprises a Ausziehbohle Z with a main pile (4) and Ausziehteilen (27) which are relative to the main pile (4) sideways to the working direction (R) adjustable to the Working width (W) to vary, the workstation (9) is mounted on one of the Ausziehteile (27).

22. Screed assembly according to one of the preceding claims 1 to 20, characterized in that the screed assembly (1) comprises a screed with a main screed (4) and laterally attachable Einbauerweiterungen (27 ') to increase the working width (W), wherein the work station (9) is mounted on one of the installation extensions (27 ').

23. Road paver (100) with a screed assembly (1) according to any one of the preceding claims.