EP2578751A1 - Sweeping broom apparatus with air blast system - Google Patents

Abstract

The device has a brush unit (100) comprising a roller-shaped brush (110) that is rotatably mounted about a brush main axis. A drive unit (200) is provided with a motor drive assembly (220) i.e. blower, for driving the roller-shaped brush such that the brush unit is raised and lowered relative to the drive unit. The drive unit is designed as a trailer for a carrier vehicle (300) e.g. lorry and tractor. The brush unit is formed as a cantilever. The device is provided as a replaceable unit of the carrier vehicle with a standard structure. An independent claim is also included for a cleaning vehicle.

Description

Technical area

The invention relates to a cleaning device for cleaning surfaces comprising a brush unit with a roller-shaped brush rotatably mounted about a brush main axis and a drive unit with a motor drive group for driving the roller-shaped brush, wherein the brush unit can be raised and lowered relative to the drive unit. Furthermore, the invention relates to a cleaning vehicle comprising a cleaning device according to the invention.

State of the art

Cleaning devices for cleaning surfaces with rotatable brush rollers, in particular for cleaning large areas such as runways or roads are well known.

To clean surfaces, a roller-shaped brush is typically rotated counter to the direction of travel in order to remove snow, ice, dirt and other contaminants. Behind the roller-shaped brush, an air nozzle can be arranged, which blows away from the brush not detected impurities laterally, that is perpendicular to the direction of travel.

Such a cleaning device is known from WO 2010/105760 A1 known. This concerns a sweeping device for a runway of an airport, which comprises a cylindrical broom. The device further comprises a high-pressure spray device which sprays a liquid at a pressure of at least 60 bar onto the surface. A blowing device is arranged behind the spraying device, so that liquid remaining on the surface can be blown onto one side of the sweeping device. The sweeper can be attached to a tractor. The roller-shaped brush is rotated by the drive unit, which is located in the rear of the sweeper, in rotation.

This cleaning device has the disadvantage that it is very large and thus, especially when it is not used, a large storage space claimed. In addition, it is not very flexible, so that in tight spaces maneuvering difficult. Finally, the cleaning effect of this cleaning device is not satisfactory.

Presentation of the invention

The object of the invention is to provide a cleaning device belonging to the technical field mentioned in the beginning, which has a particularly compact design.

The solution of the problem is defined by the features of claim 1. According to the invention, the drive unit is designed as a trailer for a carrier vehicle and the brush unit as a boom.

Characterized in that the drive unit is designed as a trailer for a carrier vehicle, a particularly compact cleaning device is achieved, in which also a main load, namely the drive unit of the cleaning device can be optimally received by a carrier vehicle. The overall length of a cleaning vehicle can thus be kept relatively short, since the vehicle length is extended only by a length of the brush unit. The brush unit can be made compact and essentially comprise a support frame with drive means for the roller-shaped brush and the roller-shaped brush itself and optionally air nozzles. Thus, the boom, that is, the brush unit may have a length which corresponds approximately to a double to three times the diameter of the cylindrical brush.

Preferably, the brush unit is connected via a trapezoidal frame, respectively a parallelogram with the drive unit, in particular via a frame of the drive unit. The raising and lowering of the brush unit is preferably carried out via a hydraulic or pneumatic drive, in particular via a cylinder arrangement.

In variants, the brush unit can also be formed otherwise raisable and lowerable, such as a simple, pneumatically or hydraulically driven lever, a rack and pinion or the like. Next, the brush unit may also be designed to be vertically movable similar to the fork of a forklift by means of chain or cable. The skilled person are also known to other possibilities.

The brush unit can also be arranged between the axes of a carrier vehicle. Further, the brush unit can also be arranged on a trailer for the carrier vehicle, for example between the trailer hitch and the trailer axles or with respect to a main direction of travel behind the trailer axle (s).

Preferably, the cleaning device is designed as a replaceable unit for a carrier vehicle, in particular for a carrier vehicle with standard construction. For a particularly cost-effective construction is achieved because a carrier vehicle for the cleaning device does not have to be changed, or negligible. Characterized in that carrier vehicles can be used with standard structure for the cleaning device, they can be purchased without any significant adjustments, which costs can be saved. Preferably, the cleaning device, in particular the drive unit is designed so that it can be mounted on a support system for swap bodies of a vehicle.

Preferably, the carrier vehicle is a truck (truck, truck or camion). The truck includes a receiving device, for. As a removable frame as a container interchangeable frame for ISO containers and the like, a swap system for containers with their own supports, or it is designed as a swap body for Abrollcontainer or Absetzmulden and the like, respectively as a mobile or side loaders. The drive unit of the cleaning device is now designed so that it can be mounted on the chassis of the corresponding truck, wherein the corresponding receiving device of the truck can be used. Thus, when using a truck for roll-off container, the substructure of the drive unit may be designed in accordance with a roll-off container substructure. If necessary, of course, further fastening devices can be used to further secure the drive unit. The fastening devices can be designed, for example, as further rail guides, screws and the like. The skilled person is clear that the list of possible carrier vehicles is not exhaustive. The cleaning device may also be made smaller, so that correspondingly smaller carrier vehicles can be used. For example, a cleaning device could also be mounted on a tow truck for cars.

The cleaning device can also be mounted in variants fixed on the carrier vehicle.

Preferably, the drive unit comprises a frame for mounting the drive unit on a chassis or removable frame, in particular on a removable frame of a carrier vehicle for receiving containers and wherein the frame is preferably fastened by means of twist-lock connection to a removable frame of a carrier vehicle. In addition to the compact design of the cleaning device is achieved so that the carrier vehicle can also be used for other areas, especially if no snowfall is to be expected or if for other reasons, the surfaces do not need to be cleaned. In this case, the cleaning device can be degraded in a simple manner, in particular via the twistlock system or by loosening fastening screws from the carrier vehicle, so that the carrier vehicle can be used for example for the transport of containers or the like.

Preferably, a truck is used for ISO containers. In this case, the drive unit may, for example, have a frame with a twistlock closure part which corresponds to that of the ISO containers. For a particularly simple attachment of the cleaning device is achieved on the carrier vehicle and also can be selected from the standardized recording the carrier vehicle from a variety of vehicles. In particular, there is the possibility that a user who is already in possession of such a carrier vehicle, only buy the cleaning device and, if necessary, must upgrade the carrier vehicle with the appropriate electronics to control the cleaning device. In particular, in a short time, the cleaning device can also be dismantled from the carrier vehicle, so that the carrier vehicle can be used for the transport of ISO containers.

Of course, can be dispensed with the respective removable frame of the truck. In this case, the drive unit can be mounted directly on the chassis. Thus, the purchase of a carrier vehicle can be cheaper. The drive unit can still be mounted on the chassis so that it can be easily dismantled when not in use. Afterwards, any frame can be set up for another application.

In a preferred embodiment, an air nozzle is arranged in the region of the roller-shaped brush, in particular with respect to a main travel direction behind the cylindrical brush, which is directed onto the floor, in particular onto the floor behind the roller-shaped brush. When cleaning surfaces by means of a roller-shaped brush, dirt particles can get caught in the bristles and be released behind the roller-shaped brush by the centrifugal force or by vibrations. Dirt particles can be solved only with the last contact of the bristles from the ground, so that they can not be detected by the roller-shaped brush. By means of the air nozzle is now achieved that snow, ice or other dirt, which has not been detected by the roller-shaped brush, can be blown in the direction of the brush. By the rotation of the cylindrical brush this residual dirt can then be absorbed. This achieves a particularly effective cleaning of the surface. For this purpose, air is preferably conveyed at a high volume flow obliquely towards the ground. The angle between the exiting air flow is preferably between 15 and 75 °, more preferably between 30 and 60 °.

In variants, the air nozzle can also be dispensed with, in particular if the requirements for the cleaning effect are not very high or if another air nozzle or an air duct is provided behind the cylindrical brush (see below).

Preferably, the air nozzle comprises a nozzle slot, with which an air flow is generated perpendicular to the main brush axis, wherein the nozzle slot extends parallel to the brush main axis and over an entire length of the roller-shaped brush. For a uniform air flow is achieved, which generates as little turbulence, so that the dirt is not, respectively, as little as possible swirled.

The nozzle slot may well be longer than the entire length of the cylindrical brush. The nozzle slot can also enclose an angle to the roller-shaped brush, so that the dirt still passes to the brush, but tends to be led outwards at right angles to the direction of travel. This requires, however, that the nozzle slot should be pivotable with respect to the brush main axis, depending on the use of the To be able to convey dirt to the left or right. The nozzle slot may also be shorter, especially if the airflow at the two ends of the nozzle slot can fan out. In variants, instead of a nozzle slot, it is also possible to provide a plurality of individual nozzles of round cross-section, but also a plurality of nozzle slots.

Preferably, an air flow with a pressure between 0.05 and 0.5 bar, preferably with a pressure of about 0.15 bar can be generated via the air nozzle. Since a large volume flow is provided, the pressure can be kept relatively low.

In variants, the pressure may also be higher than 0.15 bar, for example 1 bar or 5 bar, especially if the air nozzle is located farther away from the brush.

Preferably, the cleaning device comprises an air duct, by means of which an air flow parallel to the brush main axis can be generated and in particular with respect to a main direction of travel in front of the cylindrical brush is arranged. Typically, a dirt wall forms in front of the cylindrical brush during the cleaning process. The fact that an air duct is now provided in front of the cylindrical brush, the dirt wall can be blown away, respectively, a formation of such Schmutzwall be prevented. The second nozzle preferably comprises a cuboid and open at the bottom blow port. The airflow is preferably introduced on one side of the blower duct. The blast duct preferably extends over the entire length of the cylindrical brush and preferably has a ground clearance of about 5 to 10 cm. Preferably, the air flow can be switched so that the dirt can be selectively blown on one or the other side of the cleaning device.

In variants, this blow channel can also be dispensed with, in particular if the roller-shaped brush can be pivoted about a vertical axis with respect to the main travel direction. In this case, the dirt wall is automatically transported to the outside. However, this has the disadvantage that the total length of the cleaning device would be increased.

Preferably, the air nozzle and / or the air duct are adjustable depending on a degree of wear of the cylindrical brush. During operation of the cleaning device, the bristles of the cylindrical brush wear off. Nevertheless be able to keep a distance between the air nozzle and / or the air duct to the cylindrical brush constant, their position is adjusted. Preferably, the adjustment is realized via a hydraulically or pneumatically operable parallelogram.

In variants, the readjustability of the air nozzle and / or the air duct can also be dispensed with.

Preferably, the motor drive group comprises a fan for the air nozzle and / or the air duct.

In variants, the fan may also be provided directly on the brush unit, in particular in the nozzle channel itself.

Preferably, the roller-shaped brush comprises at least two roller parts, wherein two of the roller parts are formed pivotable about a pivot point. Thus, the passage width of the cleaning device during transport or when not in use can be reduced. Preferably, the roller-shaped brush comprises exactly two roller parts, which are formed pivotable about the pivot point. However, it is clear to the person skilled in the art that three roller parts can also be provided, wherein the middle roller part does not necessarily have to be pivotable. Furthermore, more than three roller parts can in principle also be provided, wherein more than two roller parts can also be designed to be pivotable.

In variants, it is also possible to dispense with the several roller parts, in particular if the passage width is sufficiently narrow, or if no maneuvering problems are to be expected with a large passage width. Further, the roller-shaped brush can also be formed as a whole rotatable about a vertical axis, whereby the passage width can be reduced. In this case, the roller-shaped brush can be rotated by an angle of 90 °. On the other hand, a rotation angle of less than 90 °, for example 30 ° or 60 °, can be sufficient to sufficiently reduce the passage width. The angle depends on the dimensions of the brush roller, respectively from the brush unit. However, the rotation of the entire brush roller again has the disadvantage that the total length of the cleaning device would be increased.

The fulcrums are preferably outside the brush main axis. Thus, a roller part, for example, be mounted on both sides of a radially to the roller part axis arranged strut, wherein the two struts are connected via an axially disposed strut. The axial strut may be pivotally connected to a frame of the brush unit, and in an edge region, respectively spaced from the articulated connection, may engage a hydraulic or pneumatic cylinder and pivot the roller part upon actuation of the cylinder. However, the person skilled in the art also knows of other possibilities for pivoting the roller parts.

In variants, the pivot points can also lie within the brush main axis. In particular, a radially arranged axis of rotation can be provided on the axial strut in order to pivot the roller part.

Preferably, the at least two roller parts are detachably connected to each other via a coupling. In order to release the clutch, a roller part can be mounted so that it can be pushed apart in the axial direction by a second roller part, for example by 3 cm. In a preferred embodiment, the coupling is designed as a single or double cardan driving clutch. The skilled person, however, also known other types of coupling, which may be suitable for the present application.

In variants, the roller parts can be driven separately, which can be dispensed with a clutch. In this case, the drives are preferably synchronized.

Preferably, two of the roller parts with respect to the brush main axis are formed pivotable upwards. This not only reduces the travel width but also optimizes the overall space requirement of the cleaning device. In particular, this achieves a particularly compact and agile cleaning device during transport.

In variants, the roller parts can also be designed to pivot backwards in a horizontal plane, in particular with respect to a main direction of travel. The roller parts can also be designed to be pivotable obliquely upwards in a non-horizontal plane, in particular in an inclined plane.

Preferably, the motor drive group comprises a hydraulic drive for the roller-shaped brush. For a particularly compact and inexpensive cleaning device is achieved.

In variants, other drives can be provided. For example, the roller-shaped brush can also be driven by electric motors.

In a further advantageous embodiment, a cleaning vehicle is provided which comprises a carrier vehicle and a device for cleaning surfaces according to the above statements.

Preferably, the cleaning device is arranged at the rear of the carrier vehicle with respect to a main direction of travel. For a particularly easy to maneuvering cleaning vehicle is achieved, especially since the view for the driver of the carrier vehicle is not affected by the cleaning device. Furthermore, there is the possibility with respect to a main direction of travel at the front of the carrier vehicle to arrange a further cleaning device, in particular, for example, a snow plow or the like.

In variants, the cleaning device may also be arranged with respect to a main direction of travel at the front of the carrier vehicle or between two axes of the carrier vehicle.

When the brush unit is raised, the cleaning device preferably lies exclusively on the chassis or on the removable frame. This achieves a particularly compact and agile cleaning vehicle.

In variants, the cleaning device may comprise support wheels, which are hydraulically actuated, for example. Further, the cleaning device may be arranged on a trailer or semi-trailer, wherein the cleaning device between an axle of the trailer or semi-trailer and the carrier vehicle is arranged. The person skilled in the art also knows of other possible arrangements.

When the brush unit is lowered, the cleaning device preferably rests substantially on the chassis or the removable frame and on the cylindrical brush. Optionally, support wheels or the like may be provided, in particular in order to decouple the roller-shaped brush from the vibrations of the carrier vehicle. By means of the height adjustment of the brush unit, the contact pressure of the roller-shaped brush can be varied to the surface to be cleaned, whereby the sweeping mirror width can be controlled.

In variants, the brush unit may also have a full axis.

Preferably, the roller-shaped brush with respect to the drive unit is mounted pivotably about a horizontal and / or about a vertical axis oriented at right angles to the brush main axis. This allows unevenness of the surface to be cleaned to be absorbed. The pivoting about the vertical, oriented at right angles to the brush main axis axis can be passive or active. For both Verschwenkungen hydraulic or pneumatic cylinders may be provided.

From the following detailed description and the totality of the claims, further advantageous embodiments and feature combinations of the invention result.

Brief description of the drawings

Fig. 1

eine Bürsteneinheit mit einer Luftdüseneinheit und einer Blasdüseneinheit bei nicht abgenutzter Bürste;

Fig. 2

eine Bürsteneinheit gemäss Figur 1 bei abgenutzter Bürste und nachgestellter Luft- und Blasdüseneinheit;

Fig. 3

ein Reinigungsfahrzeug mit montierter Antriebseinheit und einer Bürsteneinheit gemäss den Figuren 1 und 2; und

Fig. 4

eine zweiteilige Bürste, wobei ein Bürstenteil verschwenkt ist.

The drawings used to explain the embodiment show:

Fig. 1

a brush unit having an air nozzle unit and a blowing nozzle unit when the brush is not worn;

Fig. 2

a brush unit according to FIG. 1 with worn brush and adjusted air and blowing nozzle unit;

Fig. 3

a cleaning vehicle with mounted drive unit and a brush unit according to the Figures 1 and 2 ; and

Fig. 4

a two-part brush, wherein a brush part is pivoted.

Basically, the same parts are provided with the same reference numerals in the figures.

Ways to carry out the invention

The FIG. 1 1 shows a brush unit 100 comprising a roller-shaped brush 110 (hereinafter called brush 110), an air nozzle unit 130 and a blowing nozzle unit 140 with the brush 110 not worn.

The brush 110 is rotatably mounted between a first bearing plate 120 and a second, not apparent bearing plate. The first bearing plate 120 and the second bearing plate are connected via an unillustrated cross member above the brush 110. On the bearing plates 120, a hydraulic motor 111 is arranged in each case.

The transverse strut, which is connected to the first bearing plate 120 and the second bearing plate, is connected to the pivot adapter 123 via a pivot axis oriented at right angles to the brush axis. Thus, the brush can be pivoted about the pivot axis.

The pivot adapter 123 is in turn fixedly connected to a horizontal rotation plate 150. The rotation plate 150 is rotatably mounted on the likewise horizontally oriented holding plate 153. Between the holding plate 153 and the rotation plate 150 acts a rotary cylinder 151, which is designed as a hydraulic cylinder. By operating the rotary cylinder 151, the rotary plate 150 can be rotated about its vertical axis, whereby the brush 110 can be pivoted.

Between the holding plate 153 and the pivot adapter 123 acts a pivot cylinder 152, which in turn is designed as a hydraulic cylinder. By actuating the pivot cylinder 152, the brush can be pivoted about the pivot axis.

By combining the pivot cylinder 152 and the rotary cylinder 151, the brush can be spatially oriented and therefore largely arbitrarily and in particular actively aligned. To assist alignment, sensors may be provided, in particular a plurality of spaced-apart sensors for measuring a ground clearance and thus a bottom inclination. The settings of the two hydraulic cylinders 151, 152, however, not only depends on the unevenness of the surface to be cleaned, but also from the vibration behavior of a carrier vehicle, which can also be received by means of the two hydraulic cylinders 151, 152.

The holding plate 153 is fixed at right angles to a vertically oriented mounting plate 160. The mounting plate 160 can be adjusted by a parallelogram 161 in height so that the mounting plate 160 each retains its vertical orientation. The parallelogram 161 includes four strips, with two of the strips are not visible. The ledges connect the mounting plate 160 to an adapter plate 162. Between the mounting plate 162 and an upper one of the ledges of the parallelogram guide 161, a hydraulic cylinder 163 acts. By actuating the hydraulic cylinder 163, the brush 110 can be raised or lowered. In particular, so that the brush 110 can be regulated in dependence on the brush wear in height.

The brush unit 100 further comprises an air nozzle unit 130 and a blowing nozzle unit 140, both of which are movably arranged on the cross strut connected to the bearing plate 120. For this purpose, the cross member is connected on both sides with two retaining webs 121, respectively 122, which are slightly pivoted to each other, in particular V-shaped with the opening are arranged down.

At the distal ends of the holding web 121, the air nozzle 131 is mounted in front of the brush 110 with respect to a main traveling direction via a parallelogram guide 132. A hydraulic cylinder 133 acts between a strip of the parallelogram guide 132 and the holding bar 121. When the hydraulic cylinder 133 is actuated, in particular when the piston is moved into the cylinder, the air nozzle 131 is brought upwards and simultaneously to the brush 110. Thus, the position of the air nozzle 131 can be tracked depending on the degree of wear of the brush 110.

The air nozzle 131 comprises a substantially elongated, open at the bottom cuboid, which is formed as an air passage. Above the air duct, a guide channel for the air is formed. The air inlet takes place centrally to the guide channel and is then directed via a switchable flap on the desired side. At the end of the guide channel, the air is deflected by an angle of 180 ° and guided into the air duct. Of the Air duct is located a few inches above the ground. The length of the air nozzle 131 corresponds substantially to the axial length of the brush 110 and is aligned parallel to the brush 110. In operation, an air flow is now generated and passed through the air duct of the air nozzle 131. Thus, the dirt whirled up by the brush 110 is blown away to the desired side, so that no dirt wall can form in front of the brush 110.

At the distal ends of the retaining bar 122, a parallelogram guide 142 of the blowing nozzle unit 140 is mounted.

At the distal ends of the holding web 122, the blast nozzle 141 is mounted behind the brush 110 with respect to a main traveling direction via a parallelogram guide 142. A hydraulic cylinder 143 acts between a bar of the parallelogram guide 142 and the holding bar 122. When the hydraulic cylinder 143 is actuated, in particular when the piston is moved into the cylinder, the blowing nozzle 141 is brought upwards and simultaneously to the brush 110. Thus, the position of the blowing nozzle 141 can be tracked depending on the degree of wear of the brush 110. The blowing nozzle 141 is essentially designed as an elongated hollow body which has a longitudinal slot as a nozzle outlet. The nozzle slot of the tuyere 141 is directed towards the bottom, so that dirt, which is not detected by the brush 110, or is thrown by the rotation behind the brush, can be blown back to the brush 110.

Further, a bendable guard plate (not shown) may be connected to the blower nozzle 141 on one side and to the air nozzle 131 on the other side, so that the brush 110 can rotate within the guard plate, whereby dirt splashed by the brush 110 due to the centrifugal force can be absorbed. Preferably, the protective plate is connected to the two nozzles 131, 141, since at the same time for adjusting the nozzles 131, 141 to the brush 110 and the protective plate can be adjusted. Thus, a substantially constant distance of the protective plate to the brush 110 can be ensured without considerable additional effort.

The FIG. 2 shows a brush unit 100 according to FIG. 1 with worn brush 110 and adjusted air nozzle 131 and nozzle 141. Since during operation of the Cleaning device, the brush 110 wears continuously, the height of the brush 110 must be regulated in order to keep constant in particular the sweeping mirror can. Further, according to the present apparatus, the air nozzle 131 and blowing nozzle 141 can be raised and moved up to the brush 110 with the diameter now reduced to keep the distance between the nozzles 131, 141 and the brush 110 constant.

If a reduction in the brush diameter is detected during operation, the piston is retracted into the hydraulic cylinder 163, whereby the parallelogram guide 161 is actuated and the brush 110 is lowered with respect to the adapter plate. Further, the hydraulic cylinder 133, respectively 143 are actuated to raise the corresponding parallelogram 132, respectively 142, the air nozzle 131, respectively the blowing nozzle 141 and at the same time bring it to the brush 110.

The FIG. 3 shows a cleaning vehicle 1 with mounted drive unit 200 and brush unit 100, wherein the brush unit 100 of those of Figures 1 and 2 equivalent. The cleaning vehicle 1 comprises a truck 300, or truck (truck), which is used in standard version. The truck 300 has a loading bridge, which comprises a chassis 310 with a container receiving system as a removable frame 320. This means that the truck 300 is originally designed for container transport and can therefore be used in between, for example in summer, for this purpose. The containers are typically fastened to the chassis of the truck 300 by means of a twist-lock system. The drive unit 200 now includes a support frame 210, which can be mounted with a precise fit on the receiving system of the truck, in particular on the removable frame 320 with the twist-lock system. On the support frame 210 of the drive unit extendable supports may be provided (not shown), which allows a simple disassembly of the cleaning device 100, 200. In the rear area of the support frame 210, the adapter plate 162 of the brush unit 100 is mounted, so that the brush unit 100 is arranged as a boom on the truck 300. Next are in the FIG. 3 a hose 230 and 231 can be seen which connect the motor drive group 220 of the drive unit 200, in particular the fan (s) included by the motor drive group 220, to the air nozzle 131 or to the blow nozzle 141. Of the Truck 300 may include a front plow, in particular for clearing snow (not shown).

The FIG. 4 shows a two-part brush assembly 400, wherein a brush portion 410 is pivoted. This figure shows a variant for the brush unit, by means of which the passage width of a cleaning vehicle can be significantly reduced.

The two-part brush arrangement 400 comprises two U-shaped holding frames 420, 421, in each of which a brush part 410, 411 is rotatable and can be driven via a hydraulic motor 430, 431.

The two-piece brush assembly 400 further includes a T-piece 440 having a lower horizontal bar and a central and perpendicular to the horizontal bar oriented vertical bar (the T-piece 440 is thus upside down). At the distal ends of the vertical bar of the T-piece 440, a horizontal pivot axis is provided, via each of which one of the U-shaped holding frame 420, 421 is pivotally mounted. Between the distal end of the vertical bar of the T-piece 440 and the U-shaped holding frame 420, 421 each have a hydraulic cylinder 450, 451. The points of attack of the hydraulic cylinders 450, 451 on the U-shaped holding frame 420, 421 are in the operating state between the Arranged pivot axes, so that upon actuation of the hydraulic cylinders 450, 451 results in a leverage. By extending the piston of the hydraulic cylinders 450, 451, the brush parts 410, 411 can be pivoted from the operating state into a vertical position.

In operation, the two brush parts 410, 411 are connected via their common axis of rotation with a coupling, in particular a single or double cardan driving clutch. To release this coupling prior to pivoting, a brush portion 410 or 411 may be axially extended in the operating configuration. This is in the FIG. 4 not shown. For this purpose, for example, the corresponding pivot axis can be guided in a rail via a drive, in particular a hydraulic cylinder, along the brush main axis to the outside and then by pressing the corresponding hydraulic cylinder 450 or 451 are pivoted to the vertical position.

The two-piece brush assembly 400 can also be used in an identical construction by rotation through an angle of 90 ° so that the brush parts 410, 411 are pivoted in a horizontal plane.

Instead of a hydraulic motor 111, an electric motor or other drives known to the person skilled in the art can also be provided. All hydraulic cylinders can optionally also be designed as pneumatic cylinders, rack gears and the like. In order to keep the sweeping mirror width constant, instead of the actuation of the hydraulic cylinder 163, the brush 110 can also be displaced vertically, for example, along a rail guide along the bearing plate 120.

In summary, it should be noted that according to the invention a particularly compact and agile cleaning vehicle and a corresponding associated cleaning device is provided, which is also characterized by an efficient and effective cleaning. In particular, the carrier vehicle can be retrofitted when not using the cleaning device in a simple manner for other purposes.

Claims (18)

Cleaning device (100, 200) for cleaning surfaces, in particular sweeping blaster for road and / or airstrip cleaning, comprising a brush unit (100) having a roller-shaped brush (110) rotatably mounted about a brush main axis and a drive unit (200) having a motor drive group ( 220) for driving the cylindrical brush (110), wherein the brush unit (100) relative to the drive unit (200) is raised and lowered, characterized in that the drive unit (200) as a carrier for a carrier vehicle (300) and the brush unit (100 ) is designed as a boom. Cleaning device (100, 200) according to claim 1, characterized in that it is designed as a replaceable unit for the carrier vehicle (300), in particular for a carrier vehicle (300) with standard construction. Cleaning device (100, 200) according to claim 1 or 2, characterized in that the drive unit (200) has a frame (210) for mounting the drive unit (200) on a chassis or removable frame (320), in particular on a changeable frame (320) of a Carrier vehicle (300) for receiving containers, and wherein the frame (210), preferably by means of twist-lock connection, on a removable frame (320) of the carrier vehicle (300) can be fastened. Cleaning device (100, 200) according to any one of claims 1 to 3, characterized in that in the region of the cylindrical brush (110), in particular with respect to a main direction behind the roller-shaped brush (110), an air nozzle (141) is arranged, which on the Floor, in particular on the floor behind the roller-shaped brush (110) is directed. Cleaning device (100, 200) according to claim 4, characterized in that the air nozzle (141) comprises a nozzle slot, with which a stream of air at right angles can be generated to the brush main axis, wherein the nozzle slot extends parallel to the brush main axis and over an entire length of the roller-shaped brush (110). Cleaning device (100, 200) according to claim 4 or 5, characterized in that via the air nozzle (141) an air stream with a pressure between 0.05 and 0.5 bar, preferably at a pressure of about 0.15 bar can be generated. Cleaning device (100, 200) according to any one of claims 1 to 6, characterized in that it comprises an air duct (131), by means of which an air flow parallel to the brush main axis can be generated and in particular with respect to a main direction of travel in front of the cylindrical brush (110) is arranged. Cleaning device (100, 200) according to one of claims 4 to 7, characterized in that the air nozzle and / or the air duct (131, 141) is adjustable in dependence on a degree of wear of the cylindrical brush (110). Cleaning device (100, 200) according to one of claims 4 to 8, characterized in that the motor drive group (220) comprises a fan for the air nozzle and / or the air duct (131, 141). Cleaning device (100, 200) according to any one of claims 1 to 9, characterized in that the roller-shaped brush (110) comprises at least two roller parts (410, 411), wherein two of the roller parts (410, 411) are formed pivotable about a pivot point. Cleaning device (100, 200) according to claim 10, characterized in that the pivot points are outside the brush main axis. Cleaning device (100, 200) according to claim 10 or 11, characterized in that the at least two roller parts (410, 411) are detachably connected to one another via a coupling. Cleaning device (100, 200) according to any one of claims 10 to 12, characterized in that two of the roller parts (410, 411) are formed with respect to the main brush axis upwardly pivotable. Cleaning device (100, 200) according to one of claims 1 to 13, characterized in that the motor drive group (220) comprises a hydraulic drive for the roller-shaped brush (110). Cleaning vehicle (1) comprising a carrier vehicle (300) and a device for cleaning surfaces according to one of claims 1 to 14. Cleaning vehicle (1) according to claim 15, characterized in that the cleaning device (100, 200) is arranged with respect to a main driving direction at the rear of the carrier vehicle (300). Cleaning vehicle (1) according to claim 15 or 16, characterized in that when the brush unit (100), the cleaning device (100, 200) rests exclusively on a chassis or a removable frame (310). Cleaning vehicle (1) according to one of claims 15 to 17, characterized in that when the brush unit (100), the cleaning device (100, 200) substantially on a chassis or a removable frame (310) and on the roller-shaped brush (110) rests.

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