DE102021113467A1 - Vehicle for the renovation of pavement or slab coverings - Google Patents

Abstract

A vehicle for renovating plaster or slab coverings comprises a first sweeping arrangement (6a) and a second sweeping arrangement (6b) and a grit device with at least one grit nozzle (17) arranged between the two sweeping arrangements (6a, 6b) and at least one vibrating device (4) .

Description

The invention relates to a vehicle for renovating paved or slab surfaces

Paving stones, in particular concrete interlocking stones, or slabs made of concrete are used for the production of fixed walkable and vehicular trafficable ceilings or top layers in road construction, parking lots, sidewalks or terraces, which are sprinkled with a jointing material after laying and solidifying so that they are in their position are maintained and the stability, sure-footedness and trafficability of the paved surface is ensured. This work is usually carried out with the help of different machines and by hand. It is also necessary to clean such paved areas, for example to remove chewing gum residue or unwanted stains, and to incorporate jointing material, for example in the form of sand, chippings, plastics or mixtures that include such materials.

the DE 37 27 982 A1 discloses a vehicle for renovating surfaces of coverings, in particular path, terrace, road coverings or the like, which are provided with joints. The vehicle includes a drive unit for a rotating roller of a cleaning brush. Material released by the cleaning device is blown to the side, in particular by means of an exhaust system assigned to the drive unit. In addition, seen in the direction of travel behind the rotating roller arranged container for dispensing a joint filler and seen in the direction of travel behind the container an insertion device, such as a broom bar or a rubber lip for pressing the joint filler into the cleaned joints are provided.

Furthermore, the DE 20 2008 008 979 U1 a littering and vibrating device for processing a floor surface provided with a paved floor covering, which can be moved over the floor surface in a preferred working direction. The device comprises a grit container, which has at least one ejection slot for grit running transversely to the preferred working direction, a vibrating frame, which includes first holding means for an external motor-driven vibrating machine and second holding means for the grit container, and has at least one ground contact element.

The object of the invention is to provide a vehicle of the type mentioned at the outset which, with a compact structure, can carry out essential processes in the renovation of paved or slab-covered surfaces, for example in pedestrian zones, on parking lots, sidewalks or terraces.

Directional information used below refers to a preferred working direction of the vehicle on a surface paved with a pavement or slab covering.

According to the invention, the object is achieved by the features of the independent claim.

Within the scope of the present invention, the term paving or paving covering includes all paving made of concrete or natural stone and slabs, in particular made of concrete, also with natural stone trimmings or the like.

A vehicle for renovating plaster or slab coverings comprises a first sweeping arrangement and a second sweeping arrangement and a grit device with at least one grit nozzle arranged between the two sweeping arrangements and at least one vibrating device.

With the first sweeping arrangement, impurities are loosened from the laid paving and in the joints between the paving stones in a first cleaning process. This contamination can, for example, lead to further damage or contamination of the surface in subsequent operations if it is not removed. Then, from the at least one grit nozzle of the grit device, which can include, for example, a storage bag or an exchangeable or fixed grit container for holding the grit, a grit to fill the gaps in the pavement between the paving stones is discharged through the grit nozzle, with the Grits can be sand, grit, synthetic resin, mixtures of free-flowing suitable materials or the like. The discharge quantity of the spreading material is variable. For example, a flow cross-section for the grit in front of or in the grit nozzle can be changed according to requirements, ie enlarged or reduced. The grit is worked into the joints between the paving stones by means of the subsequent vibrating device, which can be one or more vibrating plates or roller vibrators, which can also be displaced relative to one another, and is removed from the paved surface by means of the downstream sweeping arrangement. The vibrating device can have an active surface, which acts on the patch, made of steel or an active surface coated with a plastic in order to avoid damaging the patch. At least one roller vibrator and at least one plate vibrator or at least one vibrating plate can be used as the vibrating device.

The two sweeping arrangements can comprise brooms that can be moved in a rotary or linear manner. The brooms are driven, for example, by means of a common drive motor with an interposed gear, whereby the drive motor can of course also drive the hydraulic unit and the brooms are driven by means of a hydraulic motor. The brooms can have more or less hard bristles and can be interchangeable.

The paved surface is cleaned by means of the vehicle, joint material is newly introduced in the form of grit and the paved surface is consolidated and stabilized by means of the vibrating device. Additional manual work is not required when using the vehicle. The vehicle can of course be designed as a so-called trailer, in which a machine operator walks behind the vehicle and steers it, or a ride-on vehicle, in which a seat or control station for the machine operator is installed on the vehicle, or can be remote-controlled.

The dependent claims represent advantageous developments of the invention.

In one embodiment, the first sweeping arrangement comprises at least one pivotable side brush and a central brush designed as a circular brush or as a brush roller. The pivotable side brushes can be pivoted beyond the width of the vehicle and can, for example, pivot under the vehicle when encountering resistance. For this purpose, sensors that detect a force either on the drive of the side brush or on a swivel arm supporting the side brush, or a spring mechanism can be provided. The side brushes can, for example, be designed as plate brushes. The side brushes can be pivoted at the front of the vehicle in such a way that they are effective in a pivoted-in position approximately across the width of the vehicle and in a pivoted-out position across the width of the vehicle.

It is also possible to design the center brush arranged between the side brushes or offset in the direction of the rear of the vehicle behind the side brushes, in particular in the middle, as a circular brush. Alternatively, the central brush can also be designed as a brush roller with bristles on the peripheral side. The center broom has a diameter or length that substantially corresponds to the width of the vehicle. Driven side brushes are expediently arranged in particular on both sides of the central brush in order to maximize the sweeping surface.

In a further or alternative embodiment, the first or the second sweeping arrangement comprises at least two brush rollers or row brushes which are mounted such that they can be displaced axially in relation to one another. A row broom according to the invention is an elongated broom whose bristles or bristle bundles are arranged side by side in several parallel rows. The row broom can have a rectangular cross section. The roller brooms or row brooms are preferably arranged such that they can be displaced relative to one another in such a way that they overlap in the middle. Of course, the roller brushes or row brushes can be shifted in such a way that they extend beyond the width of the vehicle. The broom rollers can have a rotary drive and the row brooms are preferably pivoted by means of a drive and moved back and forth in their longitudinal direction. Here, too, the detection of a resistance or the visual detection of an obstacle can lead to an electronically controlled or force-controlled displacement of the brush rollers or the row brushes in a direction underneath the vehicle.

For further cleaning of the plaster surface, a spray device for cleaning liquid and/or compressed air is assigned to the first and/or second sweeping arrangement. For example, the spray device can include a compressor in order to apply a fluid, ie a cleaning liquid or compressed air or a cleaning mist, to the patch at relatively high pressure. Of course, the spray device can also include a temperature control device, for example, in order to discharge a cold or hot cleaning agent. Nozzles of the spray device can, for example, be assigned to the individual brooms and/or arranged in rows. It is possible here to mount and drive the nozzles in a rotating or pivoting manner.

The spray device is preferably connected to a reservoir for cleaning liquid. A cleaning concentrate can be provided in the reservoir, for example a tank or similar receptacle, which is mixed with water from a mains network, for example. A cleaning agent that is ready to be discharged can also be accommodated in the reservoir. Compressed air to be discharged with the spray device is of course sucked in from the environment via an air filter.

At least one suction device is advantageously assigned to the first sweeping arrangement and/or the second sweeping arrangement. According to a further development, the suction device associated with the first sweeping arrangement has a dirt receptacle and that of the second sweeping arrangement tion associated suction coupled with a grit container of the grit device or with a drying container connected to the grit container.

The suction device assigned to the first sweeping arrangement takes up the sweepings from the surface via associated suction nozzles, which can be fixed to the vehicle in particular moss, grass, chewing gum residues and the like are removed. The suction device assigned to the second sweeping arrangement takes up excess grit that was not worked into the joints of the treated surface during shaking and subsequent sweeping, or sucks in new grit to fill the grit container. In particular, in the area of the suction device provided for the second sweeping arrangement, a separately manageable suction hose can be provided in addition to the vehicle-mounted suction nozzles, which is used on the one hand for manual suction of grit from the pavement or on the other from a grit supply. Before being transferred to the associated grit container, the grit can be passed through a drying container so that the grit reaches the grit container dry and free-flowing. Of course, the grit container can also be provided with at least one sieve for cleaning coarse impurities from the grit.

In order to enable work to be carried out with as little delay as possible, the grit container can be exchanged or filled using the suction device and/or the dirt collection container can be exchanged and/or tilted and/or lifted. The interchangeable grit container or dirt collection container is designed as a container with a rigid wall or as a so-called big bag. It is also possible, in particular, to lift the dirt receptacle with a hydraulic device, for example a type of front loader, and to empty it into a disposal vehicle by opening a flap on the underside.

In a further embodiment, the grit nozzle connected to the grit container is arranged between the first sweeping arrangement and the vibrating plate, with the grit nozzle extending across the width of the vehicle. By means of the slit-shaped grit outlet nozzle, which can also include several individual nozzles arranged in a row, the grit can be distributed across the width of the vehicle. The free cross-section of the grit outlet nozzle or the supply line for the grit can be designed to be adjustable for exact dosing of the grit.

According to a further development, a spreading material distributor extending across the width of the vehicle is arranged between the vibrating device and the spreading material nozzle. The spreading material distributor can be a broom strip or a rubber lip or the like. The grit spreader distributes the grit and works it into the joints. Of course, the spreading material distributor can also be movable by means of a drive.

The vehicle preferably comprises a supporting frame with a running gear with associated wheels. Different configurations are conceivable here, since the support frame can store the components explained above and is height-adjustable relative to a substrate, for example, or the support frame is used, for example, in particular to hold a driver's seat or a driver's cab. The wheels can be coupled to a drive and ensure movement of the vehicle over the area to be worked. Of course, the wheels can be driven hydraulically, for example the drive motor can drive the hydraulic unit that generates the required oil pressure. By adjusting the height, the position of the support frame holding the components explained above can be adjusted relative to the surface to be processed. In a simple embodiment, the support frame is lowered until the vibrating plate or vibrating rollers are supported on the pavement surface.

In a further embodiment, the supporting frame is connected in an articulated manner to a front attachment and a rear attachment. Preferably, the front attachment comprises at least the first sweeping device and the dirt receptacle that can be emptied, and the rear attachment comprises the second sweeping device, the grit device and the at least one vibrating device.

At least one support wheel and pivotable extension arms for the side brushes of the first sweeping device are preferably assigned to the front attachment, which can be pivoted in height by means of a hydraulic lifting device. The support wheel can be mounted, for example, on the side of the front attachment facing away from the support frame. Hydraulic piston/cylinder devices for pivoting can be assigned to the cantilever arms pivotably mounted on the front attachment. The cantilever arms can be of such a length that the side brushes and nozzles arranged thereon are in the driver's field of vision.

Two vibrating devices are expediently designed as roller vibrators or vibrating plates and are arranged on the rear attachment so that their effective width can be adjusted. The roller vibrators can are in a stowed position below the rear linkage and in an extended position project laterally over the rear linkage to increase the working width. Here, of course, the rollers or cylinders of the roller vibrator can be arranged in such a way that they mutually overlap in the extended position in the middle of the rear attachment.

The rear attachment of the vehicle includes at least two wheels and is connected to the support frame via an articulated pendulum joint. The vibrating devices can, for example, be lowered from a raised transport position into a working position relative to the rear attachment equipped with at least two wheels or the entire rear attachment relative to the wheels on both sides. The vehicle is relatively manoeuvrable due to the connection of the rear attachment to the support frame via the articulated pendulum joint.

In a further embodiment, at least one drive motor, which drives at least one hydraulic unit, is assigned to the support frame. The drive motor can be, for example, an internal combustion engine, an electric motor, a hydrogen engine or a similar unit that is used to drive the vehicle and/or the hydraulic unit that is connected to the other driven components, in particular the sweeping arrangements, the grit device, the vibrating devices, the Spraying device, the suction device but also wheel drives, a power steering and the like is connected to drive them.

In order to control the movement or travel direction of the vehicle relatively easily, at least two wheels coupled to a steering device are mounted on the support frame.

The steering device is preferably arranged with additional control elements in such a way that an operator controls the vehicle while it is running, or the vehicle includes a seat assigned to the steering device, in particular in the driver's cab arranged on the support frame, and/or the vehicle can be remotely controlled using a remote control device.

The solution to the problem is a vehicle or a machine that cleans the paving stones, cleans the joints, fills in missing joint material, strengthens, stabilizes and cleans the bond in a single operation. The plaster is cleaned in particular after the plaster composite has solidified and preferably also before sanding. According to the state of the art, this work can only be carried out with the help of various machines and by hand.

It goes without saying that the features mentioned above and still to be explained below can be used not only in the combination specified in each case, but also in other combinations. The scope of the invention is defined only by the claims.

The invention is explained in more detail below using an exemplary embodiment with reference to the associated drawing.

• 1 eine schematische perspektivische Darstellung des Fahrzeugs nach der Erfindung,
• 2 eine Seitenansicht des Fahrzeugs nach 1,
• 3 eine Teildarstellung des Fahrzeugs nach 2,
• 4 eine weitere Teildarstellung des Fahrzeugs nach 2,
• 5 eine Draufsicht auf die Teildarstellung des Fahrzeugs nach 3,
• 6 eine Draufsicht auf die Teildarstellung des Fahrzeugs nach 4,
• 7 eine Rückansicht des Fahrzeugs nach 1,
• 8 eine alternative perspektivische Teildarstellung des Fahrzeugs nach 1,
• 9 eine alternative Darstellung der Draufsicht auf die Teildarstellung des Fahrzeugs nach 4,
• 10 eine Vorderansicht des Fahrzeugs nach 1,
• 11 eine schematische Darstellung des Fahrzeugs nach 1 in alternativer Ausgestaltung,
• 12 eine schematische Draufsicht auf das Fahrzeug nach 11,
• 13 eine schematische Unteransicht des Fahrzeugs nach 11 und
• 14 eine schematische Unteransicht des Fahrzeugs nach 11 in alternativer Ausgestaltung.

It shows:

• 1 a schematic perspective view of the vehicle according to the invention,
• 2 a side view of the vehicle 1 ,
• 3 a partial view of the vehicle 2 ,
• 4 another partial view of the vehicle 2 ,
• 5 a plan view of the partial representation of the vehicle 3 ,
• 6 a plan view of the partial representation of the vehicle 4 ,
• 7 a rear view of the vehicle 1 ,
• 8th an alternative perspective partial view of the vehicle 1 ,
• 9 an alternative representation of the top view of the partial representation of the vehicle 4 ,
• 10 a front view of the vehicle 1 ,
• 11 a schematic representation of the vehicle 1 in an alternative configuration,
• 12 a schematic plan view of the vehicle 11 ,
• 13 a schematic bottom view of the vehicle 11 and
• 14 a schematic bottom view of the vehicle 11 in an alternative configuration.

The vehicle for renovating paved surfaces or surfaces covered with slabs, in particular parking lots, sidewalks, terraces or the like, comprises a support frame 1 on which, in particular, driven and optionally steerable wheels 2 are arranged. In addition, a driver's cab 23 and a drive motor 3 are installed on the supporting frame 1, the drive motor 3 on the one hand and the wheels 2 and on the other hand another hydraulic unit 24 drives. The hydraulic power unit 24 serves to provide fluid flow to drive the various moveable components, pumps, vibrators 4, suction devices 14,22, sweeping assemblies 6 and the like installed on the vehicle and described in more detail below. Of course, all or individual wheels 2 can also be driven by means of the installed hydraulic system. In addition, of course, a gear can be provided in the drive for the wheels 2, which is not shown in detail. The driver's cab 23 arranged on the support frame 1 protects the driver in particular from impairments caused by noise and vibrations.

A cleaning device 25 is provided for cleaning the paved area to be renovated, which is essentially installed in a front attachment 26 arranged on the support frame 1 and comprises a first sweeping arrangement 6a and a spray device, of which nozzles 7 are shown.

The first sweeping arrangement 6a is arranged in the preferred working direction of the vehicle on its front side 8 and comprises two side brushes 9 which can be pivoted relative to the front attachment 26 and are designed as so-called plate brushes 12 with bristles on the front side and are supported on free ends by extension arms 27. The extension arms 27 can be pivoted by means of hydraulic actuators 28 and a hydraulic rotary drive 29 is assigned to the side brushes 9 . In the pivoted-out position, the side brooms 9 protrude beyond the width of the vehicle and, in the pivoted-in position, are in front of the front attachment 26 within its width. Between the two cantilever arms 27, a central support wheel 32 is mounted on two beams 33 extending from the front attachment 26, which are arranged in a V-shape. Furthermore, the first sweeping arrangement 6a comprises a central brush 10 mounted in the front attachment 26, which is designed as a driven brush roller 11 with peripheral bristles. Further nozzles 7 for cleaning agents or compressed air can be arranged in front of the central broom 10, which are arranged in an adjustable manner, in particular for blowing out the joints in the paved surface. The nozzles 7 can, for example, extend in rows across the width of the front attachment 26 . Dirt is loosened from the joints and from the surface of the pavement by means of the first sweeping arrangement 6a. To support the cleaning effect of the first sweeping arrangement 6a, a cleaning agent is discharged by means of the nozzles 7 of the spray device arranged at the free ends of the extension arms 27. Of course, the cleaning liquid can be discharged at a relatively high pressure. Cleaning agent is supplied through the hoses 30, which are connected to a reservoir 35 via a pump. Furthermore, spray nozzles for discharging cleaning liquid or compressed air can be installed in the circular brush 12, which can also rotate with the circular brush 12.

The dirt or sweepings loosened from the paved surface is removed from the surface by a suction nozzle 13 of a suction device 14 of the cleaning device 25 downstream of the first sweeping arrangement 6a and conveyed into a dirt receptacle 15 . To empty the dirt container 15 , it has a cover 34 on the underside, which can be opened after the front attachment 26 has been raised by means of a hydraulic lifting/pivoting device 30 arranged between the front attachment 26 and the support frame 1 . The sweepings can then be emptied into a disposal vehicle below the front attachment 26 .

On the rear side of the support frame 1, a rear attachment 37, which includes two wheels 2, is connected to the support frame 1 via an articulated pendulum joint 36. The height of the rear attachment 37 can be shifted to a transport position and a working position relative to the pavement, ie relative to a wheel axle, by means of hydraulic piston/cylinder units (not shown in detail). The rear attachment 37 includes the reservoir 35 for the cleaning agent to be discharged through the nozzle 7 and a grit container 16, which is filled with joint sand, chippings mixture or plastic for filling the joints. The grit container 16 is connected to a grit nozzle 17 designed as a slot nozzle, which essentially extends across the width of the vehicle. The grit nozzle 17 can have a variable cross-section in order to regulate the quantity of grit that emerges. The exit quantity can be determined, for example, as a function of the rate of progress or after an empirical determination of the required quantity. Of course, it is also possible to provide a dosing device for the grit to be discharged in the grit container 16 .

So that the grit lying on the surface of the pavement is worked into the joints between the paving stones, a grit spreader 18 is arranged which extends across the width of the vehicle and can be designed as a kind of broom or scraper made of an elastic material. The spreader 18 may include two powered spreader elements that move across the pavement in the working position.

At least one vibrating device 4 is provided in the rear attachment 37 to harden the pavement, in particular by means of the grit that can be shaken in gets. The vibrating device 4 essentially comprises two roller vibrators 38 or roller vibrators, the rollers 39 of which are aligned parallel to one another and in their longitudinal extent perpendicular to a preferred working direction, which corresponds to the direction of travel. In order to increase the effective working width, the two roller vibrators 38 can be adjusted in relation to one another. Here, the rollers 39 can be arranged in such a way that they overlap slightly in the middle when a maximum working width is set, with an overlapping of the rollers 39 not being necessary since the vibration transmitted to the pavement is effective within a certain radius of the rollers 39 . Of course, three or more roller vibrators 38 can also be assigned to the rear attachment 37, in particular offset from one another. A circumferential plastic coating of the rollers 39 is possible for the surface-friendly treatment of the plaster. The paving stones set in vibration by the vibrating device 4 encourage the grit to trickle into the joints, so that the paving is solidified overall.

A second sweeping arrangement 6b is provided for the final cleaning and further sanding of the solidified paved surface, which comprises at least one sweeping roller 20 extending across the width of the support frame 1, preferably two sweeping rollers 20 mounted axially displaceably relative to one another. This second sweeping arrangement 6b of the cleaning device sweeps up excess grit. Since this grit is generally not contaminated, it is picked up by a slotted nozzle 21 of a suction device 22 assigned to the second sweeping device 6b. and fed into the grit container 16 for further use. The grit container 16 can be assigned a drying container 40 through which the grit flows from the suction device 22 before being introduced into the grit container 16 . In the drying container 40 , the possibly damp grit is dried so that it is readily pourable in the grit container 16 . In addition to the slot nozzle 21, the suction device 22 is connected to a manually operated suction hose 41, which can be switched on, for example, via a flow switch. Equally, the slotted nozzle 21 can also be fluidically separated from the suction device 22 via the flow switch. By means of the suction hose 41 it is possible to selectively pick up grit either from the patch or from a grit supply for filling the grit container 16 .

In the case of an alternative vehicle according to the 11 until 14 the support frame 1 is adjustable in height relative to the wheels 2, for which purpose, for example, hydraulic cylinders or spindle drives or similar adjustment devices are arranged between the support frame 1 and the wheels 2. The drive motor 3 is fixed to the frame and can be connected to various components, for example the wheels 2, the vibrating device 4, the hydraulic pump, the suction device 14, 22, the sweeping arrangements 6 and/or the pump of a high-pressure spray device. The vehicle can be controlled remotely or from a control station, with a machine operator walking next to or behind the vehicle, for example, or being transported standing or sitting on the vehicle.

The first sweeping arrangement 6a is arranged in the preferred working direction of the vehicle on the front side 8 of the support frame 1 and includes the two side brushes 9 that can be pivoted relative to the support frame 1. In the swiveled-out position, the side brushes 9 protrude beyond the width of the support frame 1 and are located in the pivoted position below the support frame 1. The two rotationally driven side brushes 9 are designed as so-called circular brushes 12 with end-face bristles. Furthermore, the first sweeping arrangement 6a includes the central brush 10 mounted below the support frame 1, which is designed as a driven brush roller 11 with peripheral bristles or as a driven circular brush 12 with bristles on the front. Dirt is loosened from the joints and from the surface of the pavement by means of the first sweeping arrangement 6a. To support the cleaning effect of the first sweeping arrangement 6a, a cleaning agent is discharged by means of the nozzles 7 of the high-pressure spray device.

The dirt or debris is removed from the surface by the suction nozzle 13 of the suction device 14 downstream of the first sweeping arrangement 6a and conveyed into the dirt receptacle 15 fixed on the support frame 1 so that it can be tilted or replaced.

The grit container 16 filled with joint sand, grit mixture or a plastic to fill the joints is connected to the grit outlet nozzle 17 designed as a slot nozzle, which essentially extends across the width of the vehicle. The grit outlet nozzle 17 can have a variable cross-section or can be connected to a variable cross-section of a feed line in order to regulate the discharge quantity, for example depending on the speed of advance. So that the grit lying on the surface of the pavement is worked into the joints between the paving stones, a grit spreader 18 is arranged which extends across the width of the vehicle and can be designed as a kind of broom or scraper made of an elastic material.

To solidify the sanded plaster, the vibrating device 4 comprising a metal plate 19 is mounted in the supporting frame 1, the metal plate 19 obviously being able to have a plastic coating. The paving stones set in vibration by the vibrating device 4 encourage the grit to trickle into the joints, so that the paving is solidified overall.

The second sweeping arrangement 6b is provided for the final cleaning and for the further sanding of the solidified paved surface, which comprises at least the brush roller 20 extending across the width of the support frame 1, preferably two brush rollers 20 which are mounted such that they can be displaced axially relative to one another and are located approximately in the middle of the support frame 1 overlap to sweep up excess grit. This excess grit is picked up by the slotted nozzle 21 of the suction device 22 assigned to the second sweeping device 6b and conducted into the grit container 16 for further use.

Reference List

1.

supporting frame

2.

wheel

3.

drive motor

4.

vibrating device

5th 6th

sweeping arrangement

7.

jet

8th.

front

9.

side brush

10

center broom

11.

broom roller

12.

plate broom

13.

suction nozzle

14

suction device

15

debris container

16

grit container

17

grit nozzle

18

spreader

19

metal plate

20

broom roller

21

slot nozzle

22

suction device

23

driver's cabin

24

hydraulic unit

25

cleaning device

26

front mounting

27

boom arm

28

actuator

29

rotary drive

30

Hose

31

lifting/pivoting device

32

jockey wheel

33

carrier

34

lid

35

reservoir

36

Articulated pendulum joint

37

rear attachment

38

roller vibrator

39

role

40

drying container

41

suction hose

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 3727982 A1 [0003]
• DE 202008008979 U1 [0004]

Claims (20)

Vehicle for renovating plaster or slab coverings with a first sweeping arrangement (6a) and a second sweeping arrangement (6b) and a grit device with at least one grit nozzle (17) arranged between the two sweeping arrangements (6a, 6b) and at least one vibrating device (4). vehicle after claim 1 , characterized in that the first sweeping arrangement (6) comprises at least one pivotable side brush (9) and a central brush (10) designed as a circular brush (12) or as a brush roller (11). vehicle after claim 1 or 2 , characterized in that the first and/or the second sweeping arrangement (6a, 6b) comprises at least two brush rollers (20) or row brushes mounted such that they can be displaced in relation to one another. vehicle after one of Claims 1 until 3 , characterized in that the first and/or second sweeping arrangement (6a, 6b) is assigned a spraying device for cleaning liquid and/or compressed air. vehicle after one of Claims 1 until 4 , characterized in that the spray device comprises rotating and/or pivotable nozzles (7). vehicle after claim 4 or 5 , characterized in that the spray device is connected to a reservoir (35) for cleaning liquid. vehicle after one of Claims 1 until 6 , characterized in that the first sweeping arrangement (6a) and/or the second sweeping arrangement (6b) is assigned at least one suction device (14, 22). vehicle after one of Claims 1 until 7 , characterized in that the first sweeping arrangement (16) associated suction device (14) with a dirt container (15) and the second sweeping arrangement (6b) associated suction device (22) with a grit container (16) of the grit device or with the grit container ( 16) connected drying container (40) is coupled. vehicle after one of Claims 1 until 8th , characterized in that the grit container (16) can be changed and/or can be filled by means of the suction device (22) and/or the dirt receptacle (15) can be changed and/or tilted and/or lifted. vehicle after one of Claims 1 until 9 , characterized in that the grit nozzle (17) connected to the grit container (16) is arranged between the first sweeping arrangement (6a) and the vibrating device (4), the grit nozzle (17) extending across the width of the vehicle. vehicle after one of Claims 1 until 10 , characterized in that at least one spreading material distributor (18) extending across the width of the vehicle is arranged between the vibrating device (4) and the grit outlet nozzle (17). vehicle after one of Claims 1 until 11 , characterized in that the vehicle comprises at least one supporting frame (1) with a running gear with assigned wheels (2), vehicle after one of Claims 1 until 12 , characterized in that the support frame (1) is articulated to a front attachment (26) and a rear attachment (37). vehicle after one of Claims 1 until 13 , characterized in that the front attachment (26) comprises at least the first sweeping device (6a) and the emptiable dirt receptacle (15) and the rear attachment (37) comprises the second sweeping device (6b), the grit device and the at least one vibrating device (4). vehicle after one of Claims 1 until 14 , characterized in that at least one support wheel (32) and pivotable extension arms (27) for the side brushes (9) of the first sweeping device (6a) are assigned to the front attachment (26) which can be pivoted in height by means of a hydraulic lifting device (30). vehicle after one of Claims 1 until 15 , characterized in that two vibrating devices (4) are designed as roller vibrators (38) or vibrating plates and are arranged on the rear attachment (37) so that they can be adjusted in terms of their effective width. vehicle after one of Claims 1 until 16 , characterized in that the rear attachment (37) of the vehicle comprises at least two wheels (2) and is connected to the supporting frame (1) via an articulated pendulum joint (36). vehicle after one of Claims 1 until 17 , characterized in that the support frame (1) associated with at least one drive motor (3). is that drives at least one hydraulic unit (24). vehicle after one of Claims 1 until 18 , characterized in that at least two wheels (2) coupled to a steering device are mounted on the support frame (1). vehicle after claim 19 , characterized in that the steering device is arranged with further operating elements such that an operator controls the vehicle while running or the vehicle includes a seat assigned to the steering device and/or the vehicle can be remotely controlled by means of a remote control device.

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