DE19938478A1 - Device for working on a building faade has sealing unit sealing work space between platform and work face and mounted for independent movement uncoupled from platform movement - Google Patents

Abstract

The device includes a work platform (4) movable horizontally and vertically through a mobile carriage (6). A sealing unit (5) which seals the work space between the platform and work surface (2) is mounted on the mobile carriage so that it can be moved substantially independent of the movement of the platform. the sealing unit surrounds the work platform in a ring and has a drive provided on the mobile carriage and connecting with the sealing unit. The drive can be electrically, pneumatically or hydraulically operated.

Description

The invention relates to a device for processing, e.g. B. painting, cleaning or the like, a surface, e.g. B. a building facade, according to the preamble of the An saying 1.

Such a device is for example from the German utility model No. G 295 05 640.1 U1 known. This document describes a painting device of building facades using a work platform attached to one movable in the vertical and horizontal direction Moving device is arranged. The working platform is with Exception for one of the facade surfaces to be worked on hen the working opening is essentially closed on all sides and at a short distance from the facades to be processed surface arranged movably. In the area of the work opening are freely adjustable and adjustable on the work platform sliding air baffles arranged that the work space between the work opening and the facade to be processed Define the surface and this from the outside environment limit. With the air baffles it should be achieved that neither outside air flows into the work area and uncontrollable turbulence in the work area things, that z. B. with dye particles or Reini Chemicals polluted air to the outside into the surrounding area exercise penetrates. For this purpose, on the work platform in Especially four independently adjustable air baffles provided, d. H. two side air baffles and a floor-side and a ceiling-side air duct sheet.

A similar device is in the German Ge pattern no.G 93 11 721.3 U1. However is on this device instead of on the four sides of the Work platform adjustable air baffles between  between the open front of the work platform and the working area, in this case a ship's wall, a Bellows that can be brought into contact with the ship's wall surface with circumferential sealing elements arranged.

In the case of the devices mentioned above, the Sealing devices, d. H. the air baffles in the first Case or the bellows device including the order running sealing elements in the second case on the work platform arranged. Although in the second case the bellows direction due to its deformability equal to that existing in the wall surface to be machined Bumps, e.g. B. inclinations, may well allow so still has the movement of the work platform inevitably a movement of the bellows device including sealing elements result. For example, the work platform becomes horizontal or swiveled vertically, so the sealing is also experienced a corresponding swivel movement. Since the Be movement of the work platform with one movement supply of the sealing device is connected, has a bottom Change of position of the work platform in any case also Change in position of the sealing device, so that the above-mentioned conventional device only limited to changing surface conditions, such as B. Tilt occurring in the area to be processed gene, can be adjusted. For example, in Hori Machined surfaces inclined zontally or vertically shielding the work area between the working platform and the area to be worked on from the Lead to problems in the outside environment.

The object of the invention is now a device for Machining any surface, especially building facades saden, of the kind mentioned at the beginning, which can also be found in In case of changing surface conditions of the bear processing area, e.g. B. in the case of to be processed  Surface existing inclinations, good shielding of the ar working space between the work platform and the work area the area from the outside environment.

This object is achieved by the device according to the Features of claim 1 solved. Advantageous further windings are the subject of the subclaims.

According to the invention, the device for processing comprises an area, e.g. B. a building facade, a work platform and a sealing device. The working platform is with means of a moving device, e.g. B. a crane or one Motor vehicle with a telescopic arm, in a given or adjustable distance from the surface to be worked movable horizontally and vertically. Processing the be hitting area, e.g. B. building facade, z. B. about a work opening provided on the work platform. The Sealing device thus defines the work space between between the work platform and the surface to be worked and has the function of this work space from the outside environment to delimit spatially. According to the invention, this is Abdich processing device is now arranged on the moving device net that it as an independent from the working platform essentially from the movement of the working platform is movable.

With the device according to the invention, the poss created z. B. vertically or horizontally inclined Areas, e.g. B. building facades to edit by at for example, the work platform in a certain orientation tion held and only the sealing device by a corresponding pivoting to the inclination of the is adapted to the surface to be processed. This allows regardless of the spatial extent of the edit the area a stable shelter for that with the area processing personnel in the work platform afford and at the same time by appropriate alignment  device of the sealing device depending on the spatial extension of the surface to be worked on reliable shielding of the work area from the outside ensure exercise.

The device according to the invention is thus distinguished through a high level of adaptability and flexibility visibly changing surface conditions of the bear processing area, e.g. B. a building facade.

In a simple embodiment, the seal device formed like a ring and arranged so that it surrounds the work platform. In addition, the Abdich device provided on the moving device own drive. In this case, the Abdich surrounds device not just the opening of the work Work platform but rather the work platform as a whole. Of course, the sealing device can be of a variety number of sealing elements connected to one unit consist. By the own drive, the fiction moderate sealing device one of the movement of the Ar perform essentially decoupled movement. For example, the sealing device via the Ar move across the stage and to a certain extent be pivoted towards the work platform. With convention Lichen devices such as those in the Do are the respective waterproofing facilities facing the surface to be worked arranged th side of the work platform, d. H. they put le only an extension of the work platform to the bear processing area.

The sealing device drive can have a Carrier device encompassing the work platform with the Abdich device are connected. In this case the sealing device independent of the working platform arranged on the moving device. The drive mechanism  mus can be electrical, pneumatic and / or hydraulic Allow adjustment of the carrier device.

There will be a minor limitation regarding the Freedom of movement of the sealing device compared to the The sealing device can be accepted of course also via appropriately designed management and articulation devices to the work platform relative to the be movably coupled. The sealing device can for example have one at the back of the work stage provided ball joint with the work platform in Ver stand horizontally and vertically on the support for the work platform is provided. In this case too however, an essentially decoupled movement of the Ab sealing device possible relative to the work platform.

With regard to a good sealing of the work area between the work platform and the surface to be worked includes the sealing device on the part of the bear processing area preferably a substantially umlau fende brush device. This advantageously has a variety of adjustable brush elements on, for example a bias, z. B. a spring preload to experience on the surface to be worked. This constructive measure allows due to the adaptation Ability of the individual brush elements to irregular liquids on the surface to be processed, e.g. B. on projections and recesses in a building facade, one reliable sealing of the work area between the work platform and the area to be worked on from the outside environment.

The sealing device preferably also has on the bottom a collecting trough for catching one for the bear beiten the area used processing means, for. B. egg nes in the case of cleaning a building facade from this splashing detergent. With a view to use of the processing means as economically as possible  can the drip pan have a drain through which in the drip pan processed tools a supply line with a reprocessing unit direction, e.g. B. a filtering or cleaning device, for reprocessing the processing medium in connection is feasible.

To the outside environment as little as possible of danger Pollution with the z. B. for cleaning a building to expose the facade to the cleaning agent required proven itself, the work platform with the exception of the work opening to close essentially on all sides. This can happen with for example, take place in that the work platform from egg a carrying basket and one carrying basket with the exception of the Ar beits Opening essentially completely surrounding cabin is formed. With regard to a certain distance from the work platform to the machined surface can also be an advantage if the cabin is above the carrying basket Sides of the work opening to the surface to be worked is extended.

In this case the cabin points to the working side Opening preferably a pivotally hinged bottom Entry flap open, which is used for editing permanent personnel can enter the work platform.

On the one hand, one from the outside environment as possible influenced editing z. B. to allow the building facade chen and on the other hand pollution of the outside environment e.g. B. to avoid by spraying away detergent, the device according to the invention preferably has one Extraction system with arranged in the area of the work opening Intake openings for sucking and transporting a gas shaped or liquid medium. The suction system can from a suction unit with a filter to the Suction lines leading suction openings can be formed. In in this case the z. B. with detergent particles  enriched air essentially immediately after it Formation sucked out of the work area and removed animals, so that they are not uncontrolled in the outside can spread. With such a device is a dragging of the be for processing the surface necessary processing equipment in the work area the surrounding area is almost impossible.

The suction system can be completely at work stage. But it would be the same way Lich, the suction unit outside the work platform, for. B. on the moving device to station. An additional Supply line would in any case the connection between between the suction lines and the suction unit on the one hand and to the filter.

Especially in connection with an extraction system, such as it was mentioned above, the invention Device further an application device, for. Legs Spraying device, for applying one for processing the area of the processing equipment required to bear processing area.

In an advantageous further development, he points out device according to the invention one or a plurality of Ab level sensors to measure the distance between the ar beitsbühne and the wall on the one hand and / or the distance between the sealing device and the wall of others on the one hand

In this case you can use the distance sensors given signals are supplied to a control unit that again in response to the signals received if necessary, the traversing device and / or the drive mechanism nism of the sealing device controls to the positi on the working platform and / or the sealing device automatically according to the specified target settings  correct. The control of the moving device like also the drive mechanism for the sealing device however, can also be carried out by a competent person become.

The device according to the invention is described below Reference to the accompanying drawings in more detail explained. In the drawings shows

Figure 1 is a schematic, simplified overall view of the device according to the invention.

Fig. 2 is a side view of the device according to the invention;

Fig. 3 is a front view of the device according to the invention;

Fig. 4 is a rear view of the Vorrich device according to the invention;

Fig. 5 is a plan view of the device according to the invention;

Fig. 6 is a bottom view of the Vorrich device according to the invention;

Fig. 7 is a vertical sectional view of the device according to the invention; and

Fig. 8 is a horizontal sectional view of the device according to the invention.

Fig. 1 shows a simplified schematic representation an overall view of the inventive device 1 for editing a facade of a building surface 2. 3 The device 1 comprises as its essential components a work platform 4 and a sealing device 5 .

The working platform 4 is arranged horizontally and vertically movable by means of a displacement device 6 , at a distance from the facade surface 2 to be processed. The traversing device 6 is formed in the embodiment shown in FIG. 1, for example, from a chassis 7 with a drive mechanism 8 which can be rotated horizontally thereon. The drive mechanism 8 comprises a telescopic arm 9 which can be pivoted up and down. The telescopic arm 9 has at its drive mechanism 8 facing away from a horizontally ver pivotable arm section 10 , on which the working platform 4 is articulated vertically rotatably via a support structure 11 . In this way, the work platform 4 in the case of a vertical and / or horizontal pivoting of the telescopic arm 9 of the moving device 6 can thus always be held in a certain or desired orientation.

It should be noted at this point that for reasons for simplicity, referring to a "building facade" below is taken. The device according to the invention is gene rell but suitable for editing any surface, al so also from walls of other bodies, e.g. B. ships or flight witness, any profiled facades, interior walls, roofs or blankets.

As can be clearly seen in particular in FIGS. 2 to 8, the working platform 4 has a carrying basket 20 and a cabin 24 enclosing the carrying basket 20 . The carrying basket 20 is in particular formed from a platform 21 and a rail 22 attached to the platform 21 all around. The cabin 24 is with the exception of a Arbeitsöff opening 23 , which can be seen from FIG. 7 and allows access to the building facade 2 to be processed, we essentially closed on all sides. The cabin 24 includes in particular a rear wall 26 , two side walls 28 , 30 and a floor 32 and a ceiling 34 , wherein the building facades 2 facing side of the work platform 4 can also be closed except for the Ar opening 23 . In the exemplary embodiment shown in FIGS. 2 to 8, the side of the cabin 24 facing the building facade 2 is nevertheless fully open.

The cabin 24 also has on the side of the working opening 23 on the bottom a pivotally hinged entry flap 33 , via which the personnel responsible for the processing of the building facade 2 in the work platform 4 z. B. by means of a folding ladder 34 as part of the railing 22 of the carrier basket 20 . In Fig. 7 this is to stand by means of dashed lines.

At the top of the car 24 further has a pivotable in the working platform 4 top flap 60 vorgese hen, as is particularly apparent from FIGS. 2 and 7 projecting over which the telescopic arm 9 of the Verfahreinrich processing can be pivoted into the working platform 4 6, to bring the device 1 according to the invention for transport to the desired location in the driving or transport position.

In the enclosed space of the cabin 24 of the ar beitsbühne 4 there is an exhaust system 40 and a (not shown in the drawing) spraying device. The suction system 40 essentially comprises a suction unit 42 , a filter 44 , and several suction lines, not shown in the drawings, which open, for example, in the vicinity of the working opening 23 and suction air containing cleaning agent particles, paint particles or the like, which are generated by the spraying device . The suction system 4 therefore allows a largely uninfluenced processing of the building facade 2 , so that contamination of the outside environment z. B. can be essentially closed out by spraying away cleaning agent. In the exemplary embodiment shown, the suction system 40 is completely accommodated on the work platform. It would also be possible, for example, the suction unit outside the work platform 4 , z. B. on the moving device 6 to station. An additional supply line would in any case establish the connection between the suction lines and the suction unit on the one hand and to the filter. The Spritzein device, not shown, is used, for example, a liquid surface processing agent such. B. a cleaning agent, a paint or the like in the work area between the Ar opening 23 and the building facade to sprit on this.

In the course of the application of the surface treatment means to the building facade 2 , the working platform 4 can be moved by appropriate lifting or lowering movements of the telescopic arm 9 and / or driving movements of the chassis 7 of the moving device 6 relative to the building facade 2 in the desired te, e.g. B. parallel, alignment to the building facade up or down and / or back and forth. In this way, the entire surface of the building facade 2 to be machined can finally be moved down.

Regarding further possible details regarding the structure and functioning of the work platform 4 , reference is made to the German patent application filed on August 13, 1998 with the file number 198 36 743.0-22.

To prevent ent resulting liquid mist by the spray device, such as cleaning agent or paint mist or the like, by lateral, between the work platform 4 and the building facade 2 streaming air movements or turbulence from the building facade de 2 are carried away first Working platform 4 moved as close as possible to the building facade 2 via the telescopic arm 9 and the moving device 6 . A certain safety distance from the building facade 2 is always necessary to rule out damage from the work platform ne 4 . To this safety distance bridged over, the sealing means 5 according to the invention provided which has the function of not only the Arbeitsöff voltage 23 of the working platform 4 but rather the whole Ar beitsbühne enclose like a ring 4, as shown in FIGS. 2 is seen to 8 , and to shield the working space between the working opening 23 and the building facade 2 from the outside environment. The sealing device 5 de thus defines the work space between the work opening 23 and the building facade 2 to be processed and delimits this work space from the outside environment.

In the exemplary embodiment shown in the figures, the sealing device 5 is attached to an extension of the support structure 11 for the work platform 4 by means of a support device 52 made of a hollow profile construction and encompassing the work platform 4 in a clamp or bracket-like manner. The sealing device 5 is connected via the device 52 to a device 58 provided on the support structure 11 in connection. For the sake of clarity, the drive 58 is only shown schematically in FIGS . 1, 2 and 7. The drive 58 in the exemplary embodiment shown, however, is formed from two drive devices 58 a, 58 b, each of which is assigned to one of the free end sections 52 a, 52 b shown in the figures, the device 52 device 52 and on electrical, pneumatic and / or hydraulic way allow any controllable movement of the sealing device 5 relative to the work platform 4 and the building facade 2 . The Abdichtungein device 5 can therefore be moved horizontally and vertically and / or pivoted. The sealing device S is thus able to perform a movement which is essentially decoupled from the movement of the working platform 4 . In example, it can go over the work platform 4 and be pivoted to a certain extent relative to it.

As can be seen from FIGS. 2 to 8, the sealing device 5 has a peripheral brush device 50 on the side of the building facade to be processed, which, although it cannot be seen from the figures, is formed from a multiplicity of brush elements arranged in series. The individual brush elements are arranged in a single circumferential or a plurality of the respective brush elements associated and circumferentially arranged guide recesses on the side facing the building facade of the sealing device 5 to each other and experience a spring preload on the Ge building facade 2 . In practical use of the device according to the invention, these brush elements are in contact with the building facade 2 and allow a relatively intimate attachment to it. This constructive measure thus allows due to the adaptability of the individual Bürstenele elements to irregularities in the building to be processed defassade, z. B. on projections and depressions, a reliable seal of the work space between the work platform and the to be processed, for example, profiled surface of the building facade 2 from the outside environment.

Although in the exemplary embodiment shown in FIGS . 2 to 8, the sealing device 5 together with the brush device 50 is separated from the work platform 4 , it can of course also be coupled to the work platform 4 so that it can be moved and pivoted relative to the work platform 4 by means of correspondingly designed guide and articulated devices . The Abdichtungsein device 5 can, for example, a stand at the rear of the platform 4 moved horizontally and vertically in front of the ball joint seen with the work stage 4 in connection. In this case, the freedom of movement from the sealing device 5 is of course slightly restricted. Nevertheless, the sealing device 5 can perform a movement that is essentially decoupled from the movement of the working platform 4 ; for example, it can be pivoted to a certain degree relative to the arena 4 . In the conventional device described above, a pivoting of the sealing device could only be achieved by simultaneously pivoting the working platform, since the sealing device was attached directly to the working platform.

With the device 1 according to the invention, the possibility is now also created of vertically or horizontally inclined surfaces on z. B. building facades in which, for example, a horizontal or horizontal orientation of the work platform 4 is maintained and only the sealing device 5 is pivoted by a corresponding Ver to the inclination of the surface to be machined. This ensures a safe shelter for the personnel responsible for surface treatment in the work platform. At the same time, the orientation of the sealing device 5 , depending on the inclination of the surface to be processed, ensures a reliable sealing device against the external environment.

The sealing device also has on the bottom ei ne drip pan 55 for collecting a processing means used during the processing of the building facade 2 , e.g. B. a cleaning agent used to clean the building facade 2 . With regard to the recyclability of the collected processing agent, the collecting trough has a drain 56 to the gene in the collecting trough processing agent via a supply line 57 with a reprocessing device, for. B. a filtering or cleaning device for processing the Bear processing agent is in communication.

The inventive device 1 further comprises at ei ner or more suitable locations in the area of Ar beitsbühne 4 and / or the sealing device 5, a plurality of distance sensors for detecting the distance between the platform 4 and the sealing device 5 and the building facade 2, for example by means of ultrasound , Infrared or the like. About a controller not shown in the fi gures, which receives and evaluates the signals output from the stand sensors From, the traversing device 6 , for. B. Te leskoparm 9 or a drive provided on this for the work platform 4 , and / or the drive 58 for the sealing device 5 can be controlled to the work platform 4 and / or the sealing device 5 in a certain relative position to the building facade 2 to position. The positioning can either be done automatically according to predefined settings or by a person responsible for it. B. be carried out directly from the work platform 4 .

In practice, the working platform 4 is first brought as close as possible to the building facade 2 via the moving device 6 and the telescopic arm 9 . The distance between the work platform 4 and the building facade 2 is continuously detected via the distance sensors. Finally, the working platform 4 is at a predetermined distance in the desired relative position in front of the building facade 2 , the sealing device 5 is finally adjusted, ie moved and / or pivoted, that the Bürstenein device 50 lies closely against the building facade, even during this process continuously the distance between the sealing device 5 and the building facade 2 can be detected via appropriate distance sensors. This operation is indicated in Fig. 5 by dashed lines using the example of the horizontal adjustment of the sealing device 5 ge compared to the beitsbühne positioned in front of the building facade 2 Ar. Although only a horizontal shift is shown in FIG. 5, the sealing device 5 can, however, be adjusted in any manner relative to the work stage 4 , ie horizontally and vertically displaced and pivoted. The aim of this adjustment is to shield the work area delimited between the work platform 4 and the building facade 2 from the outside environment.

Since the brush device 50 can be formed from a plurality of brush elements arranged in series, which are guided so as to be displaceable relative to one another, it would be conceivable in a further development of the device according to the invention to assign a distance sensor to each brush element in order to optimally match the brush device 50 to the prevailing surface conditions to be able to adapt the building facade 2 to be processed.

The invention thus relates to a device for Bear processing a building facade, comprising a horizontally and vertically movable stage 4 by means of a displacement device 6 at a distance from the surface to be machined 2 and a sealing device 5 for sealing between the work platform 4 and the one to be processed Area 2 of the working area lying opposite the outside environment. The sealing device 5 is arranged on the displacement device 6 such that it can be moved as a unit, essentially decoupled from a movement of the work platform 4 . In the preferred embodiment, the Abdichtungein device 5 surrounds the work platform 4 in the form of a ring and is connected via a support device 52 encompassing the work platform 4 to a drive 58 provided on the travel device 6, which drives a movement of the work platform 4 independent of the Sealing device 5 allowed.

Claims (18)

1. Device for processing a surface ( 2 ), for. B. egg ner building facade, comprehensive
a by means of a moving device ( 6 ) in a position from the surface to be worked ( 2 ) horizontally and vertically movable work platform ( 4 ), and
a sealing device ( 5 ) for sealing the inter mediate of the work platform ( 4 ) and the surface to be machined ( 2 ) working space from the outside environment, characterized in that
the sealing device ( 5 ) on the procedural device ( 6 ) is arranged so that it is movable as a unit from a movement of the work platform ( 4 ) substantially decoupled. 2. Apparatus according to claim 1, characterized in that the sealing device ( 5 ) surrounds the work platform ( 4 ) in a ring-like manner and has a drive ( 58 ) connected to the sealing device ( 6 ) and connected to the sealing device ( 4 ). 3. Apparatus according to claim 2, characterized in that the drive ( 58 ) is connected to the sealing device ( 5 ) via a support device ( 52 ) which surrounds the working platform ( 4 ). 4. The device according to claim 3, characterized in that the drive ( 58 ) enables an electrical, pneumatic and / or hydraulic adjustment of the carrier device ( 52 ) light. 5. Device according to one of claims 1 to 4, characterized in that the sealing device ( 5 ) via guide and articulated devices to the work platform ( 4 ) is movably coupled to this. 6. Device according to one of claims 1 to 5, characterized in that the sealing device ( 5 ) on Be th of the surface to be machined ( 2 ) comprises a substantially circumferential brush device ( 50 ). 7. The device according to claim 6, characterized in that the brush device ( 50 ) from a plurality of on the surface to be machined ( 2 ) to and from this ver adjustable brush elements is formed. 8. The device according to claim 7, characterized in that that the brush elements a bias, z. B. by means of Fe force to experience on the surface to be worked. 9. Device according to one of claims 1 to 8, characterized in that the sealing device ( 5 ) on the bottom side has a collecting trough ( 55 ) for collecting a processing means used for machining the surface. 10. The device according to claim 9, characterized in that the collecting trough ( 55 ) with a reprocessing location for reprocessing the processing means in Ver connection can be brought. 11. The device according to one of claims 1 to 10, characterized in that the working platform ( 4 ) with the exception of a working space oriented towards the working opening ( 23 ) is essentially closed on all sides. 12. The apparatus according to claim 11, characterized in that the working platform ( 4 ) from a carrying basket ( 20 ) and one of the carrying basket ( 20 ) with the exception of the working opening ( 23 ) substantially completely surrounding cabin ( 24 ) is formed. 13. The apparatus according to claim 12, characterized in that the cabin ( 24 ) on the carrying basket ( 20 ) is extended on the side of the work space and is provided on the bottom with egg ner hinged entry flap ( 33 ). 14. Device according to one of claims 1 to 13, characterized by a suction system ( 40 ) with suction openings arranged in the region of the working space, for suctioning egg nes gaseous, liquid and / or solid medium. 15. The apparatus according to claim 14, characterized in that the suction system ( 40 ) is formed by a suction unit with suction lines leading via a filter to the suction openings. 16. The device according to one of claims 1 to 15, characterized marked by an application device for applying a processing agent required for processing the surface on the surface to be processed ( 2 ). 17. Device according to one of claims 1 to 16, characterized by a distance sensor for detecting the distance between the work platform ( 4 ) and / or the sealing device ( 5 ) and the surface to be processed ( 2 ). 19. The apparatus according to claim 18, characterized in that the working platform ( 4 ) and / or the Abdichteinrich device ( 5 ) are adjustable in response to signals output by the distance sensor.