Assembly and method for removing an order, such as a road marking, from a road surface and cleaning vehicle with assembly

Abstract

The invention, which relates to an arrangement (1) and a method for removing coatings, such as road markings, from a traffic surface, is based on the objective of providing a solution for the rapid removal of road markings with minimal effort. This objective is achieved in the arrangement by the fact that the arrangement (1) has a support frame (2) with wheels (3), wherein a milling tool (4) and a high-pressure cleaning agent (5) are arranged in the support frame (2), and wherein the arrangement (1) is arranged in a working position so that it can be moved essentially horizontally relative to the traffic surface by means of the wheels (3).

Description

[0001] The invention relates to an arrangement for removing coatings, such as road markings, from a traffic surface.

[0002] The invention also relates to a method for removing coatings, such as road markings, from a traffic surface.

[0003] The invention further relates to a cleaning vehicle on which an arrangement for removing coatings, such as road markings, from a traffic surface is arranged.

[0004] This order is for the removal of coatings, such as road markings, that have been intentionally or unintentionally applied to a paved traffic surface. Such coatings include, for example, road markings intentionally applied to the paved traffic surface. They also include cargo unintentionally spilled onto the paved traffic surface in an accident, such as paint released during the accident.

[0005] Generally, road markings are thin, ranging from 1 mm to 10 mm. These markings typically consist of materials such as paint, sprayed plastic, cold plastic, or thermoplastic. Epoxy resins and adhesive tapes are also sometimes used for road markings.

[0006] The arrangement for removing a coating, such as a road marking, from a traffic surface involves removing the coating from the paved traffic surface, a process also referred to as demarcation. In the following description, the term "coating" will generally be used without thereby limiting the scope of the present invention.

[0007] Road markings are necessary to ensure the safe and orderly flow of traffic on a paved surface, such as a road. However, at certain times, it may be necessary to remove these road markings. This might be required to accommodate changes in traffic flow or to use the road surface for a different purpose. The removal of road markings can also be necessitated by construction work.

[0008] When removing the coating from the traffic surface, high quality is required, as improper removal can compromise safety on the traffic surface, such as a road, due to coating residue. Furthermore, it is essential to minimize stress on the traffic surface to prevent damage and avoid unnecessarily shortening its service life.

[0009] It is known from the prior art to use a milling method for removing coatings, such as road markings, wherein the coating is mechanically removed by means of a rotating tool.

[0010] Alternatively, surface treatment methods such as shot peening are known to be used, in which abrasive grains act on the coating at high speed and remove it mechanically.

[0011] It is also known to use flame treatment to remove the coating from suitable materials.

[0012] For example, removing a plastic coating (cold plastic or thermoplastic) is very complex according to the state of the art, as various means are required for this, which are usually arranged on different vehicles.

[0013] It is known from the state of the art that for particularly robust applications, such as markings made of cold plastic or thermoplastic, the removal of the application must be carried out in several steps, whereby in a first step a vehicle with a milling agent must be used, followed in a second step a vehicle with a mechanical cleaning agent such as a sweeper, and in a final third step a vehicle with a high-pressure cleaning agent must be used in order to achieve a sufficient demarcation result.

[0014] Such a large effort results in high fuel and water consumption and is therefore not sustainable.

[0015] From DE 26 50 487 a method and a device for removing road markings, in particular lane separation lines, directional arrows, speed indications and the like, are known.

[0016] The task to be solved is to specify a method that allows for the rapid removal of road markings with minimal effort. Furthermore, the method should be feasible without significant technical complexity.

[0017] The proposed solution involves subjecting the marking material to intense heating, causing it to blister, and then removing the marking material with a rotating steel brush. This intense heating, potentially leading to blistering, tears the marking strip and makes the material so brittle that it easily breaks upon contact with the steel brush.

[0018] A known disadvantage of removing debris from a traffic surface is that the removal requires a high level of technical effort and extensive resources, such as fuel, heating oil and water.

[0019] Furthermore, the result of the removal, also known as the demarcation result, is often insufficient. Additionally, the traffic surfaces are subjected to considerable stress during the removal of the applied coating. Such stress can impair the service life or robustness of the traffic surface.

[0020] Therefore, there is a need for an improved arrangement for the removal of debris from traffic areas.

[0021] The object of the invention is to provide an arrangement and a method for removing coatings, such as road markings, from a traffic surface, which reliably removes coatings from a traffic surface and avoids damage to the surface of the traffic surface.

[0022] Furthermore, the arrangement and procedure for removing orders from a traffic area should be compatible with existing vehicles or carrier vehicles and thus be flexible in its application.

[0023] The arrangement and the procedure should be simple and inexpensive to manufacture and allow for a reduction in the resources required, such as fuel and water, when removing the order.

[0024] The problem is solved by an object with the features according to claim 1. Further developments are specified in the dependent claims.

[0025] The provision is that an arrangement for removing material, such as road markings, from a traffic surface has a support frame with wheels, wherein a milling agent and a high-pressure cleaning agent are arranged in the support frame, and wherein the arrangement is arranged in a working position to be moved essentially horizontally relative to the traffic surface by means of the wheels.

[0026] The device for removing debris from a traffic surface has, for example, a rectangular support frame, on which several wheels are arranged. In this way, the support frame, i.e., the device for removing debris from a traffic surface, is movable or traversable above the traffic surface in a so-called working position, in which the device removes the debris.

[0027] To remove the residue from the traffic surface, the device is moved in its working position parallel to the surface of the traffic area. In this position, the device maintains a small distance from the surface, allowing its working elements to effectively remove the residue. In this working position, the device rolls across the traffic surface using its multiple wheels.

[0028] For transport, either before or after removing the load from the traffic area, the assembly is moved from its working position to a so-called transport position, thereby increasing the distance between the assembly and the traffic area surface. In the transport position, this distance is chosen to ensure quick and safe transport. In particular, it is ensured that the assembly's components are not damaged by unintentional contact with the traffic area or obstacles on the traffic area.

[0029] In one embodiment of the arrangement, four wheels are positioned at the corners of the rectangular support frame. These wheels are pivotally mounted on the support frame. In an alternative embodiment, only some of the wheels, for example two, are pivotally mounted. In this embodiment, the other two wheels are not pivotable and are oriented in one direction of movement of the arrangement on the support frame.

[0030] The working equipment used to remove the coating from the traffic surface is arranged within the support frame of the system. This equipment consists of a milling tool and a high-pressure cleaning device, which are positioned separately and spaced apart from each other within the support frame.

[0031] To remove the coating from the road surface, the milling tool and the high-pressure cleaning agent are moved in a configuration that is essentially horizontal or parallel to the road surface. The milling tool is designed to first mechanically remove a substantial portion of the coating, followed by the high-pressure cleaning agent removing any remaining coating that was not completely removed by milling. Therefore, in the working position above the road surface, the milling tool is positioned ahead of the high-pressure cleaning agent.

[0032] It is further planned that initial coupling means are arranged on the support frame, by means of which the arrangement can be attached to a carrier vehicle.

[0033] The device for removing debris from a traffic surface is attached to a carrier vehicle, such as an existing cleaning vehicle, and moved with this carrier vehicle in both transport and working positions. For this purpose, primary coupling devices are arranged on the carrier frame, which mechanically couple or connect the device to corresponding means on the carrier vehicle. Generally, these primary coupling devices provide at least a portion of a detachable connection, allowing the device to be attached to the carrier vehicle. These primary coupling devices also enable the device to be removed from the carrier vehicle, for example, to carry out maintenance and / or repair work on the device, or if the carrier vehicle is to be coupled to other means for a purpose other than removing debris from the traffic surface.

[0034] In particular, it is provided that the milling agent is arranged in a first housing in the arrangement and that the high-pressure cleaning agent is arranged in a second housing in the arrangement, with both housings being open towards the traffic surface.

[0035] The working components of the arrangement are spaced apart from each other and arranged side by side within the support frame of the arrangement. To ensure the proper functioning of the milling tool and the high-pressure cleaning agent, the working components and their working areas must not interfere with each other. For this purpose, the working areas in which a milling operation takes place on the one hand and a high-pressure cleaning operation on the other, and thus the working components themselves, are each enclosed in a housing within the arrangement.

[0036] In this arrangement, the milling tool is housed in a first casing and the high-pressure cleaning agent in a second casing. To ensure the proper functioning of the tools, both casings are open towards the traffic surface.

[0037] To further limit the working areas of the milling tool and the high-pressure cleaning agent, circumferential brush strips are arranged in the lower sections of the housing. These brush strips reduce the escape of removed material and the escape of the high-pressure cleaning agent from the working areas. Furthermore, these brush strips improve the extraction process from the tool areas, in which, in particular, removed material is extracted from the working areas and fed into a collection container.

[0038] It has proven particularly advantageous that the milling agent is arranged to rotate about a first axis and that the high-pressure cleaning agent is arranged to rotate about a second axis, with both axes being aligned perpendicular to a surface of the traffic area and spaced apart from each other in the arrangement.

[0039] The milling tool is rotatably mounted in the assembly and rotates within its working area inside the first housing around a first axis. The high-pressure cleaning agent is also rotatably mounted in the assembly and rotates within its working area inside the second housing around a second axis.

[0040] Both axes are aligned vertically, or perpendicularly, specifically perpendicular to the surface of the traffic area. In other words, the axes are arranged at a substantially right angle to the surface of the traffic area. The axes are thus parallel to each other and spaced apart, with the distance corresponding to the distance between an imaginary center point of the milling tool and an imaginary center point of the high-pressure cleaning agent.

[0041] In one embodiment, the milling device is designed as a rotatably mounted, horizontally rotating, circular milling head about the first axis. This milling head of the waterless milling device rotates in a plane, for example, parallel to the surface of the traffic area, and has a number of milling plates which are mounted in an annular outer area of ​​the circular milling head. Materials such as polycrystalline diamond (PCD) are used for the milling plates, in particular the milling zone. In one embodiment of the circular milling head, between ten and twenty milling plates, in particular sixteen milling plates, are arranged in the outer area of ​​the circular milling head. Each of these milling plates is further equipped with two to six milling teeth, in particular four milling teeth.In an alternative design, the circular milling head rotates in a plane which is inclined at an angle of between 3 degrees and 10 degrees to the surface of the traffic area.

[0042] In one embodiment, the high-pressure cleaning agent is designed as a rotatably mounted nozzle bar rotating about a second axis. This nozzle bar, which rotates in a plane parallel to the surface of the traffic area, has several nozzles on its underside. These nozzles are arranged, for example, in one or two rows, and may be oriented in slightly different directions. Essentially, the nozzles are oriented towards the surface of the traffic area.

[0043] A cleaning medium, such as water, is supplied to the rotating nozzle bar, for example via a high-pressure line from the carrier vehicle.

[0044] The cleaning medium, operating at high pressure (e.g., 3000 bar), emerges from the nozzles of the rotating nozzle bar, impacts the residue firmly adhering to the road surface, and thus mechanically detaches it. For this to occur, the nozzle bar of the high-pressure cleaning agent rotates in a plane parallel to the surface of the road.

[0045] It is further provided that a first extraction port is arranged on the first housing of the milling tool and a second extraction port is arranged on the second housing of the high-pressure cleaning agent.

[0046] To remove material loosened from the traffic surface by the work equipment, extraction ports are arranged on the housings of the work equipment.

[0047] In this arrangement, a first extraction port is located on the first housing of the milling tool, and a second extraction port, independent of the first extraction port, is located on the second housing of the high-pressure cleaning agent.

[0048] This makes it possible to remove the material removed from the traffic surface separately from the working areas of the equipment. This design allows, for example, different suction pressures and thus different suction capacities to be set in the working areas.

[0049] It has also proven advantageous that the first and second suction ports are each connected to a suction device of the carrier vehicle via a flexible hose.

[0050] The carrier vehicle, such as a cleaning vehicle (sweeper), has a means of collecting dirt. This means includes a suction device that creates a vacuum and a collection container in which, for example, dirt or debris loosened from the surface of the roadway is collected.

[0051] The dirt collection device mounted on the carrier vehicle is connected via a first flexible hose to the first suction port of the first housing of the milling tool. This allows debris removed from the milling tool's working area to be extracted and transported to the collection container by means of negative pressure.

[0052] The dirt collection device mounted on the carrier vehicle is connected via a second flexible hose to the second suction port of the second housing of the high-pressure cleaner. This allows debris removed from the high-pressure cleaner's working area and transported to the collection container by means of negative pressure.

[0053] The dirt collection device features two suction elements, each generating an independent vacuum. This allows the vacuum pressure for removing the loosened material to be adjusted differently for the various work areas of the system.

[0054] It is also intended that further electrical and / or hydraulic coupling means are arranged on the assembly, by means of which the assembly and / or the milling means and / or the high-pressure cleaning means are connected to the carrier vehicle for control and / or drive.

[0055] Detachable electrical connections are established between the carrier vehicle and the assembly using additional electrical coupling devices. Such connections are required, for example, for the electrical control of the assembly or its working components. These connections are also needed to transmit measured values ​​from sensors to the carrier vehicle, where these sensors are located within the assembly or its working components.

[0056] Detachable hydraulic connections are established between the carrier vehicle and the assembly using additional hydraulic coupling devices. These connections are used, for example, to supply pressurized hydraulic fluid to the drive components within the assembly. Such drive components can be used to generate linear movements within the assembly. For instance, flaps within the assembly can be moved using appropriate hydraulic cylinders, or the height of the assembly above the road surface can be changed. These drive components can also be used to generate rotary movements or rotation of the working components within the assembly.

[0057] It is particularly advantageous that a first hydraulic drive is arranged on the milling tool and a second hydraulic drive on the high-pressure cleaning agent.

[0058] The milling tool is set into a rotary motion or rotation by means of a first hydraulic drive.

[0059] The high-pressure cleaning agent is set into a rotary motion or rotation by means of a second hydraulic drive.

[0060] This allows the working components of the arrangement to be controlled independently of one another. Generally, the arrangement and its working components are controlled by a central control unit, for example, located in the carrier vehicle. For this purpose, the central control unit is connected to the arrangement and its working components via the additional electrical coupling devices.

[0061] Thus, according to the invention, it is possible to switch the working elements on and off independently of one another and to operate the working elements at different speeds. It is also possible to change the operating mode of the arrangement during operation, in which the arrangement is in the working position, in order, for example, to adapt to different thicknesses of the application or to a changing surface of the traffic area.

[0062] The invention also relates to a cleaning vehicle comprising an arrangement for removing coatings, such as road markings, from a traffic surface according to claims 1 to 10.

[0063] It is particularly advantageous that the device for removing debris from a traffic area is mounted on a cleaning vehicle and moved with it. In this way, the device can be connected to components or assemblies of the cleaning vehicle, such as a central control system, a hydraulic system, a suction device, or a collection container.

[0064] The arrangement is carried out with the cleaning vehicle, which is the carrier vehicle of the arrangement, and is also operated during ongoing operations, i.e., when the order is removed from the traffic area in the working position.

[0065] According to the invention, it is also provided that the arrangement on the cleaning vehicle is located on a front crane of the cleaning vehicle or in an area between the vehicle axles of the cleaning vehicle.

[0066] The system allows for use with various carrier vehicles (sweepers) available on the market or already present in a fleet, as it can be coupled to these carrier vehicles and operated in the working position. The system is pre-prepared and can be attached to a carrier vehicle with minimal effort. The coupling devices are designed accordingly. The system is available with different types of coupling devices, enabling easy connection to various carrier vehicle series.

[0067] In a first variant, the system is mounted on and operated by the front crane of the cleaning vehicle. For this purpose, the front crane is equipped with appropriate electrical and / or hydraulic coupling devices for the system. The system is moved into the working position and into the transport position by the front crane or by means of a hydraulic system on the front crane.

[0068] In a second variant, the arrangement is positioned in an area between the axles of the cleaning vehicle. In vehicles such as sweepers, this area typically houses a cleaning or sweeping agent.

[0069] The problem is also solved by a method with the features according to claim 14. Further developments are specified in the dependent claim.

[0070] The method provides that an arrangement according to claims 1 to 11 is provided with a support frame and a first coupling means for attachment to a carrier vehicle, wherein milling means, with which a substantial portion of the coating is first mechanically removed, are provided in a first housing in the arrangement, and high-pressure cleaning means, with which a portion of the coating not completely removed during milling is subsequently removed by means of a high-pressure cleaning means, are provided in a second housing in the arrangement such that their working areas do not influence each other and both housings are open towards the road surface.wherein a first extraction port is provided on the first housing of the milling device and a second extraction port is provided on the second housing of the high-pressure cleaning device for the separate removal of material removed from the traffic surface by the working devices from the working areas of the working devices with different suction capacities.

[0071] The procedure involves first mechanically removing a substantial portion of the coating using a milling tool provided in a first housing within the assembly. Subsequently, a high-pressure cleaning agent provided in a second housing within the assembly is used to remove any remaining coating not completely removed by the milling process. To execute these steps sequentially, the milling tool is positioned before the high-pressure cleaning agent, relative to the direction of movement of the assembly over the traffic surface in its working position.

[0072] Furthermore, the first housing, in which a milling process takes place, and the second housing, in which a high-pressure cleaning process takes place, are provided separately from each other and open towards the traffic surface. According to the invention, the milling media provided in this way and the milling media provided in this way do not influence each other, since they have separate working areas in their respective housings.

[0073] The method provides for a first extraction port on the first housing of the milling tool and a second extraction port on the second housing of the high-pressure cleaning tool. According to the method, material removed from the road surface by the milling tool and the cleaning tool is extracted separately from their respective working areas. A particular advantage is that this removal of the extracted material is achieved with different suction capacities from the working tools.

[0074] According to the invention, it is further provided that the first extraction port and the second extraction port are each connected via a flexible hose to a suction device of the carrier vehicle, for removing removed material from the working areas of the work equipment by means of negative pressure and supplying the material to a collection container, and wherein the milling device is provided as a rotatably mounted, circular, waterless milling head rotating horizontally about the first axis.

[0075] The dirt collection device mounted on the carrier vehicle is connected via a first flexible hose to the first suction port of the first housing of the milling unit. This allows debris removed from the milling unit's working area to be extracted and transported to the collection container by means of negative pressure.

[0076] The dirt collection device mounted on the carrier vehicle is connected via a second flexible hose to the second suction port of the second housing of the high-pressure cleaner. This allows debris removed from the high-pressure cleaner's working area and transported to the collection container using negative pressure.

[0077] According to the invention, it has proven particularly advantageous that the milling element is provided as a rotatably mounted, circular milling head that rotates horizontally about the first axis. This milling head of the waterless milling element rotates in a plane, for example, parallel to the surface of the traffic area, and has a number of milling plates which are arranged in an annular outer area of ​​the circular milling head. Materials such as polycrystalline diamond (PCD) are used for the milling plates, in particular for the milling zone. In one embodiment, the circular milling head is provided with ten to twenty milling plates, in particular sixteen milling plates, arranged in the outer area of ​​the circular milling head.

[0078] Advantages of the arrangement and method according to the invention lie in the combination of a milling agent and a high-pressure cleaning agent in a common mobile arrangement. Furthermore, the arrangement can be retrofitted to vehicles with hydrostatic drive, and existing mounting systems between the vehicle axles or on a front-mounted crane can be used. The coupling elements of the arrangement are compatible with these mounting systems. Thus, an existing fleet of carrier vehicles can be used with the arrangement.

[0079] The combination of several working elements in the arrangement according to the invention leads to lower consumption of fuel and / or a cleaning medium such as water. This reduces operating costs and makes the removal of the cleaning order more sustainable.

[0080] The modular design of the equipment in the arrangement allows for the interchangeability of the milling and water cleaning components, for example to adapt to different orders, as well as easy maintenance and repair of the equipment.

[0081] The arrangement can advantageously be connected and operated with suction devices and collection tanks already present or installed on carrier vehicles.

[0082] Further details, features, and advantages of embodiments of the invention will become apparent from the following description of exemplary embodiments with reference to the accompanying drawings. These show: Fig. 1: a first embodiment of the arrangement according to the invention for removing coating from a traffic surface in a view from below at an angle, Fig. 2: the arrangement according to the invention in a view from above at an angle, Fig. 3: the arrangement according to the invention in a sectional view, Fig. 4: a cleaning vehicle according to the invention with the arrangement in a first embodiment and Fig. 5: a cleaning vehicle according to the invention with the arrangement in a second embodiment.

[0083] The Figure 1 Figure 1 shows a first embodiment of the arrangement 1 according to the invention for removing debris from a traffic surface in a view from a low angle.

[0084] The arrangement 1 comprises a support frame 2 with four wheels 3. The wheels 3 are arranged to pivot in the illustrated embodiment.

[0085] A milling tool 4 and a high-pressure cleaning tool 5 are arranged in the support frame 2 as the working elements of the arrangement 1. The working elements 4 and 5 are moved in a so-called working position relative to a traffic surface (not shown) by means of the wheels 3, essentially horizontally, with the arrangement 1, in order to remove coating material from a traffic surface.

[0086] In the illustrated embodiment of arrangement 1, four wheels 3 are arranged in the areas of the corners of the rectangular support frame 2. These wheels 3 are pivotably mounted on the support frame 2.

[0087] The design provides for at least one first coupling element 6 on the support frame 2, by means of which the arrangement 1 can be attached to a carrier vehicle (not shown). The arrangement 1 is attached to a carrier vehicle, such as a sweeper, by means of the first coupling element 6 and moved with this carrier vehicle in both the transport and working positions of the arrangement 1. For this purpose, at least the first coupling element 6 is arranged on the support frame 2, via which the arrangement 1 is mechanically coupled or connected to corresponding means of the carrier vehicle. The first coupling element 6 forms at least part of a detachable connection with the transport vehicle.This first coupling means 6 also enables the arrangement 1 to be removed from the carrier vehicle, for example to carry out maintenance and / or repair work on the arrangement 1 or in the event that the carrier vehicle is to be coupled by other means for a use other than removing the order from the traffic area.

[0088] The working elements 4 and 5 of arrangement 1 are spaced apart from each other and arranged side by side within the support frame 2 of arrangement 1. To ensure the proper functioning of the milling element 4 and the high-pressure cleaning element 5, the working elements 4 and 5, or their working areas, must not interfere with each other. For this purpose, the working areas are each enclosed by a housing 7 or 8.

[0089] In arrangement 1, the milling tool 4 is located in the first housing 7 and the high-pressure cleaning agent 5 in the second housing 8. To ensure the proper functioning of the tools 4 and 5, both housings 7 and 8 are open towards the traffic area (not shown), i.e., downwards.

[0090] To further limit the working areas of the milling tool 4 and the high-pressure cleaning agent 5, circumferential brush strips 9 are arranged in the lower areas of the housings 7, 8. These brush strips 9 reduce the escape of removed material and the escape of the high-pressure cleaning agent 5 from the working areas. Furthermore, these brush strips 9 improve the extraction, particularly of the removed material, from the working areas of the tools 4 and 5.

[0091] The milling tool 4 is rotatably arranged about a first axis 10 within its working area in the first housing 7. The high-pressure cleaning agent 5 is rotatably arranged about a second axis 11 within its working area in the second housing 8. The two axes 10 and 11 are oriented perpendicular to a surface of the traffic area and spaced apart from each other in the arrangement 1. The axes 10 and 11 are thus arranged essentially at right angles to the surface of the traffic area. The axes 10 and 11 are also parallel to each other and spaced apart in the arrangement 1. The distance between the axes 10 and 11 corresponds to the distance between an imaginary center point of the milling tool 4 and an imaginary center point of the high-pressure cleaning agent 5.

[0092] The milling tool 4 is in the embodiment of the Figure 1The milling head 12 is designed as a rotatably mounted circular milling head 12, rotating essentially horizontally about the first axis 10. This milling head 12 rotates in a plane, for example parallel to the surface of the traffic area, and has, for example, ten milling plates 13. The milling plates 13 are mounted in an annular outer area of ​​the circular milling head 12 and are made, for example, of polycrystalline diamonds. Each of these milling plates 13 is further equipped with, for example, four milling teeth, which in the Figure 1 not shown.

[0093] In one embodiment, the high-pressure cleaning agent 5 is configured as a rotatably mounted nozzle bar 14 rotating about the second axis 11. This nozzle bar 14, which rotates in a plane parallel to the surface of the traffic area, has several nozzles 15 on its underside. These nozzles 15 are arranged, for example, in one or two rows, and the nozzles 15 may be oriented in slightly different directions. Essentially, the nozzles 15 are oriented towards the surface of the traffic area (not shown).

[0094] A cleaning medium, such as water, is supplied to the rotating nozzle bar 14, for example via a high-pressure line from the carrier vehicle. The cleaning medium, under high pressure (e.g., 3000 bar), emerges from the nozzles 15 of the rotating nozzle bar 14, impacts the residue firmly adhering to the road surface, and thus mechanically detaches it. For this purpose, the nozzle bar 14 of the high-pressure cleaning agent 5 rotates in a plane parallel to the surface of the road surface.

[0095] Furthermore, in the Figure 1 A first extraction port 16 located on the first housing 7 can be seen. The view is somewhat less clear in the Figure 1 The second extraction port 17 located on the second housing 8 can be seen.

[0096] The Figure 2 The arrangement according to the invention is shown in a view from an oblique angle above.

[0097] In the Figure 2In the view from a slant above, the rectangular support frame 2, the four wheels 3, the first coupling means 6, the first and second housings 7 and 8 each with a brush strip 9 can be seen.

[0098] Furthermore, the first axis 10 and the second axis 11 as well as the first extraction port 16 and the second extraction port 17 are shown.

[0099] In the presentation of the Figure 2 A first drive 18 and a second drive 19 can still be seen. The first drive 18 is a hydraulic drive which drives the milling plate 13 of the milling tool 4, while the second drive 19, which is also a hydraulic drive, sets the nozzle bar 14 of the high-pressure cleaning agent 5 into a rotary motion.

[0100] In the Figure 3 The arrangement according to the invention is shown in a sectional view along a central longitudinal axis of the arrangement 1.

[0101] In the sectional view of the Figure 3 The rectangular support frame 2, two of the four wheels 3, the first coupling device 6, the first and second housings 7 and 8 each with a brush strip 9 can be identified.

[0102] Furthermore, the first axis 10 and the second axis 11, the first extraction port 16 and the second extraction port 17, as well as the first drive 18 and the second drive 19 are shown. The milling plate 13 can be seen in the first housing 7 and the nozzle bar 14 in the second housing 8.

[0103] In the presentation of the Figure 3 The first drive 18 and a second drive 19 are shown next to the corresponding axes 10 and 11 of the milling tool 4 and the high-pressure cleaning tool 5, respectively. Appropriate means, such as belts, toothed belts, or gears, are provided to transmit the rotary motion generated by the drives 18 and 19 to the axes 10 and 11. Figure 3 are not shown.

[0104] The Figure 4Figure 1 shows a cleaning vehicle 20 according to the invention with the arrangement 1 in a first embodiment. The illustration shows only the principle of positioning the arrangement 1 on a carrier vehicle that is necessary for explanation. A detailed representation of the individual components has been omitted.

[0105] In this first embodiment, the arrangement 1 is located on the cleaning vehicle 20 in an area between the vehicle axles 21 of the cleaning vehicle 20. In carrier vehicles known from the prior art, such as a sweeper, a unit with a rotary brush and a suction device is usually arranged in this area between the vehicle axles 21.

[0106] In the Figure 5A cleaning vehicle 20 according to the invention, comprising the arrangement 1, is shown in a second embodiment. The illustration only shows the principle of positioning the arrangement 1 on a carrier vehicle that is necessary for explanation. A detailed representation of the individual components has been omitted.

[0107] In this second embodiment, the arrangement 1 is mounted on a front crane 22 of the cleaning vehicle 20. The schematic diagram also shows the first suction port 16 and the second suction port 17, each of which is connected via flexible hoses 23 to a suction medium (not shown) of the cleaning vehicle 20. This connection enables the suction of the removed residue from the working areas of the arrangement and its conveyance to a collection container in the cleaning vehicle 20, which is located in the Figure 5 not shown. Reference symbol list

[0108] 1. Arrangement for removing debris from a traffic area 2. Support frame 3. Wheel 4. Milling medium 5. High-pressure cleaning medium 6. First coupling medium 7. First housing 8. Second housing 9. Brush strip 10. First axle 11. Second axle 12. Milling head 13. Milling plate 14. Nozzle bar 15. Nozzles 16. First extraction port 17. Second extraction port 18. First drive 19. Second drive 20. Cleaning vehicle 21. Vehicle axle 22. Front crane 23. Flexible hose

Claims

1. Arrangement (1) for removing a coating, such as a road marking, from a traffic surface, comprising a support frame (2) with wheels (3), wherein a milling means (4) and a high-pressure cleaning means (5) are arranged in the support frame (2), and wherein the arrangement (1) is arranged in a working position to be moved substantially horizontally relative to the traffic surface by means of the wheels (3).

2. Arrangement (1) according to claim 1, characterized by the fact that First coupling means (6) are arranged on the support frame (2), by means of which the arrangement (1) can be attached to a carrier vehicle.

3. Arrangement (1) according to claim 1 or 2, characterized by the fact that the milling agent (4) is arranged in a first housing (7) in the arrangement (1) and the high-pressure cleaning agent (5) is arranged in a second housing (8) in the arrangement (1), both housings (7, 8) being open towards the traffic area.

4. Arrangement (1) according to any one of claims 1 to 3, characterized by the fact thatthe milling means (4) is arranged to rotate about a first axis (10) and the high-pressure cleaning means (5) is arranged to rotate about a second axis (11), wherein both axes (10, 11) are aligned perpendicular to a surface of the traffic area and spaced apart from each other in the arrangement (1).

5. Arrangement (1) according to any one of claims 1 to 4, characterized by the fact that a first extraction port (16) is arranged on the first housing (7) of the milling means (4) and a second extraction port (17) is arranged on the second housing (8) of the high-pressure cleaning means (5).

6. Arrangement (1) according to any one of claims 1 to 5, characterized by the fact that the first suction port (16) and the second suction port (17) are each connected to a suction device of the carrier vehicle via a flexible hose (23).

7. Arrangement (1) according to any one of claims 1 to 6, characterized by the fact thatFurther electrical and / or hydraulic coupling means are arranged on the arrangement (1), by means of which the arrangement (1) and / or the milling means (4) and / or the high-pressure cleaning means (5) are connected to the carrier vehicle for control and / or drive.

8. Arrangement (1) according to any one of claims 1 to 7, characterized by the fact that a first drive (18) is arranged on the milling medium (4) and a second drive (19) is arranged on the high-pressure cleaning medium (5).

9. Arrangement (1) according to claim 8, characterized by the fact that the first drive (18) and the second drive (19) are designed as hydraulic drives.

10. Arrangement (1) according to any one of claims 1 to 9, characterized by the fact that the milling means (4) is a rotatably mounted circular milling head (12) rotating horizontally about the first axis (10), on which ten to twenty milling plates, in particular sixteen milling plates (13), are arranged in an outer area of ​​the circular milling head (12).

11. Arrangement (1) according to any one of claims 1 to 10, characterized by the fact that Two to six milling teeth, in particular four milling teeth, are arranged on each milling plate (13).

12. Cleaning vehicle (20) comprising an arrangement (1) for removing material, such as road markings, from a traffic surface according to claims 1 to 11.

13. Cleaning vehicle (20) according to claim 12, characterized by the fact that the arrangement (1) is located on the cleaning vehicle (20) on a front crane (22) of the cleaning vehicle (20) or in an area between the vehicle axles (21) of the cleaning vehicle (20).

14. Method for removing a coating, such as a road marking, from a traffic surface, wherein an arrangement (1) according to claims 1 to 11 is provided with a support frame (2) and a first coupling means (6) for attachment to a carrier vehicle, wherein milling means (4), with which a substantial portion of the coating is first mechanically removed, are provided in a first housing (7) in the arrangement (1) and high-pressure cleaning means (5), with which a portion of the coating not completely removed during milling is subsequently removed by means of a high-pressure cleaning means, are provided in a second housing (8) in the arrangement (1) such that their working areas do not influence each other and both housings (7, 8) are open towards the traffic surface.wherein a first extraction port (16) is provided on the first housing (7) of the milling device (4) and a second extraction port (17) is provided on the second housing (8) of the high-pressure cleaning device (5) for the separate removal of material removed from the traffic surface by the working devices (4, 5) from working areas of the working devices (4, 5) with different suction capacities.

15. Method according to claim 14, characterized by the fact that The first extraction port (16) and the second extraction port (17) are each connected via a flexible hose (23) to a suction device of the carrier vehicle for removing removed material from the working areas of the work equipment (4, 5) by means of negative pressure and supplying the material to a collection container, and the milling tool (4) is provided as a rotatably mounted, horizontally rotating circular waterless milling head (12) about the first axis (10).

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