WO2013068575A2

WO2013068575A2 - Cleaning machine for windows, façade elements, solar modules, and smooth-surfaced surface elements of that kind

Info

Publication number: WO2013068575A2
Application number: PCT/EP2012/072341
Authority: WO
Inventors: Michael Bieder
Original assignee: Michael Bieder
Priority date: 2011-11-10
Filing date: 2012-11-12
Publication date: 2013-05-16
Also published as: DE202011051936U1; WO2013068575A3

Abstract

The invention relates to a cleaning machine for windows (F) façade elements, solar modules, and smooth-surfaced surface elements of that kind, in particular at great height, which cleaning machine enables quick and efficient cleaning in particular at great height and provides improved cleaning effectiveness compared to known "hand cleaning" performed using long rods (telescoping rods). For this purpose, the cleaning machine according to the invention comprises the following: a) a machine body (4) arranged on a chassis (2), b) a rod-guiding unit (5) arranged on the machine body (4) in such a way that the rod-guiding unit can be pivoted relative to the machine body, c) a telescoping rod (6), which is arranged in the rod-guiding unit (5) in such a way that the telescoping rod can be moved in the longitudinal direction of the telescoping rod and which is constructed of telescopic segments (6a, 6b) joined inside each other and which has a free end on an innermost telescopic segment, a wiping head (8) being arranged on the free end, d) a drive (7) for moving the telescoping rod (6) back in forth in the longitudinal direction of the telescoping rod relative to the rod-guiding unit by a specified stroke, e) a water applicator for applying water, in particular distilled water, to a surface to be cleaned in the region of the wiping head (8), and f) a water-supply unit for supplying water, in particular distilled water, to the water applicator.

Description

Cleaning machine for windows, facade elements, solar modules and the like smooth surface elements

Technisches GebietTechnical area

The present invention relates to a cleaning machine for windows, facade elements, solar modules and the like smooth-surfaced surface elements, especially at high altitude.

Stand der TechnikState of the art

It is well known that in particular, but not only, windows on buildings are polluted by environmental influences and must be cleaned at regular intervals. This cleaning concerns not only the window inner surfaces, but in particular their buildings outside arranged outer surfaces. Even in private homes, where the windows are often available in a clear and manageable number and can be opened mostly to the inside, such cleaning can still be made conventionally by them, but already means a considerable effort.

In larger buildings, especially in office buildings or the like public buildings, this is often no longer possible. So windows are often arranged there, which are no longer easy to open inwards, in daily office operation, a corresponding cleaning from the inside is disturbing and not desirable. In addition, the sizes of the windows are often significantly larger, and there are more windows than in private homes. Also, the windows to be cleaned are located in much greater heights.

In addition to window surfaces, modern but also older facades often contain additional glass elements or other smooth-surfaced facade elements or surface elements, e.g. polished stone elements, metal facade elements or the like. Also pollute by environmental influences and must be subjected to cleaning.

Furthermore, due to the accelerated expansion of renewable energies, there is now a growing number of solar modules installed on roofs, on facades or on scaffold stands. These solar modules, which have transparent, usually made of glass covering surfaces, dirty and must be cleaned regularly. For these, cleaning is particularly important, as the efficiency of the solar modules decreases significantly with increasing pollution.

Window and facade cleaning service providers specialize in cleaning work. In this area, the service is mostly provided using purely manual labor. A variety of tools have been developed and developed, which should allow a corresponding exterior cleaning with great cleaning speed and efficiency. Thus, a widely used today solution has been proposed in which a brush or wiper head at the end of a long, often telescopically extendable cleaning rod is arranged, which are held by a window or facade cleaner and at a height (up to to 20 meters) arranged to be cleaned glass or another facade element or solar module and is moved across this. For the actual cleaning, distilled water is applied in the region of the wiper or brush head, with the dirt particles adhering to the window pane or the façade element being loosened. The use of distilled water makes it unnecessary to remove the cleaning water or to wipe or dry it. The water can simply bead off, it leaves no "streaks" because of the freedom of dissolved salts and minerals. The wiper or brush head serves to mechanically loosen adhering contaminants. A corresponding system is offered by Ionic Systems as "the reach & wash system" (see www.ionicsystems.com ).

Although the approach of using distilled water for window or facade cleaning is very good and leads to generally good results. However, the cleaning effect of such a manually operated system with a telescopic rod is especially inadequate only when cleaning takes place at high altitudes. This is because the cleaning person who holds the telescopic rod, because of the unfavorable angle is hardly able to a sufficient, directed against the window or the facade pressure on the high level of the window or the facade adjacent cleaning head Apply (wiper or brush head). The mechanical separation effect, which is urgently needed to remove adhering contaminants, is therefore hardly ever available.

Notwithstanding a person-operated window or facade cleaning, automated methods and corresponding machines have also been proposed. For example, e.g. in DE 31 45 946 C2 proposed a machine for cleaning wall and glass surfaces, which are concerned with applied to a driven rod, cylindrical brush elements which are rotated about the Stangelängsachse, a corresponding cleaning. While this machine will undoubtedly achieve good cleaning performance with window or other glass elements or smooth-surfaced facade elements made of other material close to the floor, it is no longer suitable for cleaning glass or façade surfaces or elements arranged at higher heights. A correspondingly extended construction of the rod or a displacement of the same to higher altitudes is not practicable.

Darstellung der ErfindungPresentation of the invention

Here it is therefore an object of the invention to provide a cleaning machine for windows, facade elements, solar modules or the like. Smooth surface elements that allows fast and efficient cleaning especially at high altitude, in particular over a known with long rods (telescopic rods) undertook "hand cleaning "Provides improved cleaning effect.

This object is achieved with a cleaning machine with the features of the protection claim 1. Advantageous further developments are specified in the dependent claims 2 to 10.

According to the invention, the cleaning machine has the following essential elements:

a) A mounted on a chassis machine body.

The chassis ensures that the machine can be moved along the façades of the building or other driveways to be processed. The machine body serves as a mounting location of further units and for attaching individual elements, as described below.

b) A rod guide unit pivotally mounted on the machine body relative thereto.

c) A in the rod guide unit in its longitudinal direction movably arranged, constructed of telescoping telescopic segments, at an innermost telescopic segment having a free end telescopic rod with a arranged at the free end mop head.

This telescopic rod can substantially similar to a previously conventionally manually used telescopic rod in their structure and in their operation. But it can also, as will be explained below, be adapted in individual elements and design details to the specific use in the machine according to the invention. The telescopic rod is, as stated in the rod guide unit and movable in its longitudinal direction. A movement transverse to the longitudinal direction is prevented by the guidance of the rod guide unit. For this, the rod guide unit itself is pivotable relative to the machine body, so that an angle of inclination of the telescopic rod arranged in the rod guide unit relative to the machine body and thus ultimately relative to the substrate respectively relative to the facade element or window to be cleaned can be adjusted reliably and defined. The mop head arranged at the free end of the telescopic rod can substantially equal the mopping heads already used and customary today on manually operated telescopic rods for the facade or window cleaning. In this case, it may in particular have a processing surface covered with a wiping textile and / or with wiping bristles (see protective claim 3). The wiping textile can in particular be made of microfibres or contain such. Microfibers are suitable for absorbing soiled water because of their very good suction properties and abilities. With wiper bristles made of a stiffer material (for example polyester) adhering dirt can be loosened particularly easily and easily.

d) A drive for reciprocating the telescopic rod in the longitudinal direction relative to the rod guide unit by a predetermined stroke.

This drive is accordingly coupled to the telescopic rod so that it moves back and forth in its longitudinal direction, so take along. This drive can apply a corresponding force in this direction. The pressing force of the mop head against the element to be cleaned or the surface to be cleaned is accomplished by appropriate pivoting of the rod guide unit. Thus, a significantly greater pressure force at the same time well-effective driving force can be applied in the rod longitudinal direction than a person is able to do with hand-held and hand-operated telescopic rod.

e) A water applicator for applying water, in particular distilled water, to a surface to be cleaned in the region of the mop head.

This water applicator may for example be a spray nozzle, which is arranged on the mop head and is applied with the water, in particular distilled water over the region of the width of the mop head to the surface to be cleaned. If the water applicator is suitable for applying the water at a certain elevated pressure to the surface to be cleaned, a first preliminary solution of adhering dirt particles can already be achieved by this spraying pressure. Here again, the water applicator in principle correspond to one, as it is already in use in known, hand-operated telescopic poles.

f) A water supply unit for supplying water, in particular distilled water, to the water applicator.

This water supply unit preferably comprises in particular corresponding transport hoses or pipes, which are e.g. inside the telescopic rod or at the outside can set and run guided. It also includes a message for bringing the water, in particular distilled water, to the water applicator, in particular a pump. Part of the Wasserzuführeinheit may also be a reservoir for water, especially distilled water. Preferably, said elements of the water supply unit are arranged on or on the machine body as a whole. In order to prevent early contamination by algae, lichens or moss growth in areas that are particularly sensitive to such types of contamination, appropriate herbicides or preventive disinfectants may be added to the cleaning water. For this purpose, a corresponding storage container and optionally an automatic dosing unit for adding the agent to the cleaning water can be provided on the machine body.

Basically, the telescopic rod can be formed with almost any length in the extended position. However, it is limited by the fact that the individual telescope segments can have a maximum length still suitable for handling the machine and that the diameter of the outermost telescope segment is limited, correspondingly only a certain number of inner telescope segments can be arranged therein. It has been found that the telescopic rod, if it has a length in the maximum extended position of more than 20 m, in particular more than 30 m, preferably 30-40 m, can be very well used for such work in Heights can be accomplished, which are still to be operated from the ground. Telescopic poles with the mentioned lengths can be operated well with a cleaning machine according to the invention, it can still achieve excellent cleaning results. At higher altitudes, the cleaning efficiency then decreases, where purification then turns out to be otherwise, e.g. from hanging on the facade gondolas or similar aids, as cheaper.

For an efficient and / or at least partially further automated operation of the cleaning machine according to the invention, it may be advantageous if it has a sensor device in the region of the wiper head for detecting the geometry and / or the soiling state of surfaces to be cleaned. Such a sensor device may e.g. be an optical camera, but also realized in other forms (e.g., laser scanning sensors or the like). Advantageously, this sensor device is connected via a data connection with a display and / or control unit, which can be arranged in particular on or on the machine body. Thus, e.g. an operator of an image recorded by an optical camera image are displayed, so even at heights or in places that they can not see directly, the cleaning effect can monitor well. On the basis of a detection of the geometric dimension and / or the degree of contamination of the surface to be cleaned, for example, before the actual cleaning operating parameters of the cleaning machine, such as the amount of water supplied, the stroke of the wiping path (the alternating telescopic rod movement in the longitudinal direction) or the choice of a the cleaning be done with the telescopic rod to be connected to the mop head. In principle, it is also conceivable to provide a control of the cleaning machine, which controls the cleaning by means of the sensor device before or during the cleaning of received data, in particular a cleaning section closes when the surface is recognized as sufficiently cleaned.

It is also possible that such sensors (e.g., transponders) cooperate with signalers or other sensors disposed along the surface to be cleaned so as to effect, through feedback with a machine controller, continuous automatic processing of the surface to be cleaned. The mop head would be so "passed" by automated movement movements of the chassis, pivotal movements of the rod guide device and / or up and down movement by the drive from a signal transmitter or sensor surface or a this attributed section to the next, and continue until the entire cleaning surface is processed and cleaned.

An even more intensive cleaning performance can be achieved with the cleaning machine according to the invention, if it has a motor drive for moving the mop head relative to the telescopic rod. With such a wiper head, for example, can be placed in a kind of dithering with short deflections. Such a movement, superimposed with the up and down movement of the telescopic rod for even further improved physical cleaning effect.

Advantageously, the cleaning machine on a Ausfahreinrichtung for automated extension of the telescopic segments of the telescopic rod. This can preferably be arranged on the rod guide unit so that it is pivotable together with the latter relative to the machine body. Such a deployment device may be formed, for example, by externally engageable driven friction rollers against the telescopic segments, e.g. three around the circumference of the telescope segments in each 120 ° staggered such rollers that engage the outside of the telescopic segments, pull out by frictional engagement of the respective telescoped telescope segment from the other telescopic segments. Advantageously, these friction rollers are resiliently mounted so that they can adapt to the respective diameter of the telescopic segments, which always have larger diameter when extending the telescopic rod. Not necessarily all friction rollers must be driven, it may be sufficient if only one friction roller is driven, serve the other friction rollers only as an abutment. But there are also other mechanisms for extending the telescopic rod conceivable, so an extension could for example be realized with hydraulically or pneumatically operated, arranged in the interior of the telescopic rod punches or the like.

Advantageously, the cleaning machine has a blocking device for blocking extended telescope segments in their position. With such a blocking device prevents extended telescopic segments retract during operation of the cleaning machine, especially when the telescopic rod is moved back and forth in its longitudinal direction. Such a blocking device can be formed, for example, by clamping devices arranged in the area of an upper end of each telescope segment facing the wiping head and acting against the next inner lying telescopic segment, which are activated when the next inner telescopic segment is fully extended. Such clamping elements are advantageously spring-loaded in the direction of the clamping or blocking position. You can e.g. be pressed by pneumatic means from the blocking position into a release position when an extension of the next inner telescopic segment is undertaken. Here, for example, by appropriate interleaved pneumatic transmissions with valve action an automated terminals occur when the telescopic segment provided with the blocking elements is extended and disconnects a connection of the pneumatic transmission, the pneumatic pressure drops in this telescope segment and the blocking elements engage by the spring load. If, when disconnecting from a main supply branch, then a corresponding, e.g. spring-loaded valve closes, the respective blocking elements can be kept open in the still retracted telescopic segments by applied pneumatic pressure.

Typically, the telescopic pole will have some flexibility when it is extended. Thus, the pressure, which is applied by the tilt adjustment or the assumed pivot position of the rod guide unit relative to the machine body on the telescopic rod or the mop head against the surface to be cleaned, maintained when the rod is moved in its longitudinal direction back and forth, so that then comes to a wiping and wiping the wiping head along the surface to be cleaned. If the own flexibility of the telescopic rod is not sufficient, a tilt adjustment and pressure device can be arranged on the innermost telescope segment of the telescopic rod to support this. In the simplest case, this can be realized by means of a pivoting joint near the wiping head, which is provided by e.g. a spring-loaded bridging piece is biased in the direction of a deflected from the longitudinal direction of the telescopic rod position, stretches by a pressure of the mop head against the surface to be cleaned against the spring load. It is also possible here to have a e.g. by pneumatics (compressed air) actively provided in the tilt adjustment adjustable device.

Advantageously, the chassis of the cleaning machine according to the invention is a crawler track. A crawler undercarriage is particularly suitable because it also enables less easily accessible terrain a method of the machine along a building front, which is to be cleaned. Thus, e.g. Garden sides or the like. Be accessible and processed with the cleaning machine according to the invention, the surfaces are cleaned.

The chassis is advantageously a self-propelled chassis, so that the cleaning machine can move independently along a building front, this does not need to be drawn by another unit.

Overall, the cleaning machine according to the invention makes a significant contribution to improving working practice in this field. A manual cleaning by telescopic rod brings significant long-term damage to the neck and back spine with it. Furthermore, it can lead to heavy wear in the area of the shoulder joints and inflammation in the wrists. This is completely prevented with this machine, since the operator only has to take control of the machine, but no longer has to maneuver and move the unwieldy long telescopic pole itself.

Another essential aspect is the high level of occupational safety, which is ensured with the cleaning machine according to the invention. The conventional hand cleaning is greatly affected by wind and rain. Because lateral forces can hardly be intercepted at the moment. Thus, there are situations in which the telescopic rod uncontrollably falls to the ground and can injure persons. In the rain, not only the visibility is impaired but also the sure-footedness of the worker. This problem is also overcome with the invention.

Finally, by the possibility of adjusting the angle of inclination by means of the rod guide unit pivotable relative to the machine body, it is also possible to use the cleaning machine according to the invention to provide inclined surfaces, e.g. to clean inclined glass roofs, or even overhanging surfaces, without using scaffolding or hydraulic platforms as usual, and doing the cleaning by hand.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Further advantages and features of the invention will become apparent from the following description of an embodiment with reference to the accompanying figures. Showing:

Fig. 1 is a schematic view of a device according to the invention placed in front of a surface to be cleaned;

Figure 2 is a schematic view of the device according to the invention from a different perspective.

3 shows a further schematic view of the device according to the invention for clarification of individual elements;

4 is an enlarged schematic representation of a possible implementation of a drive for driving the telescopic rod in the longitudinal direction thereof.

5 shows a schematic representation to illustrate the pivotability of the rod guiding device;

6 shows a schematic representation of the extension device for the automatic extension of the telescope segments;

Fig. 7 in two illustrations a and b for explaining the principle other views of this automatic extension device; and

Fig. 8 shows schematically a locking of the telescopic segments of the telescopic rod in the extended state.

Weg(e) zur Ausführung der ErfindungWay (s) for carrying out the invention

20

In the figures, various embodiments and variants of the cleaning machine according to the invention are shown. Here, the figurative representations are to be understood purely schematically, in particular by no means meant to scale or even as concrete construction drawings.

In Fig. 1 it can be seen that the cleaning machine according to the invention, which is generally designated 1 there, is a movable machine. For this purpose, it has a chassis 2, which is a crawler chassis and driven crawlers 3 contains on. On the chassis 2, a machine body 4 is arranged relative to this about a vertical axis rotatable. At this, a rod guide unit 5 is pivotably arranged, in which a telescopic rod 6 is movable in the longitudinal direction, is guided transversely to the longitudinal direction. The telescopic rod 6 consists of not shown here individual telescopic elements.

Further, a drive 7 is shown for driving the telescopic rod 6 in the longitudinal direction thereof. The telescopic rod 6 contains at its innermost telescope segment at its free end a mop head 8, which abuts in Fig. 1 in an exemplary representation on the surface of a window or facade element F. At the innermost and in the extended state uppermost telescopic segment of the telescopic rod 6, a hinge 9 is arranged, which allows the setting of an angle in the telescopic rod 6. The two sections of this innermost telescopic segment, each adjoining the joint 9, are connected to an elbow 10 which is attached to one of the sections, e.g. in the area between the mop head 8 and the hinge 9 is fixedly connected to the telescopic rod 6, in the other section can be selectively moved in the longitudinal direction in the connection. By appropriate joints in the region of the connections of the angle piece 10 to the telescopic rod 6 thus the angle piece 10 can be moved or adjusted to change the inclination of the telescopic rod 6 in the region of the bend at the hinge 9. Thus, these elements serve as a tilt adjustment, with the pressure of the mop head 8 against the window F can be maintained.

The drive 7 for driving the telescopic rod 6 in its longitudinal direction comprises a drive motor (not shown here, numbered 11 in FIG. 3) whose force is e.g. via a pulley 12, but also via other possible power transmission paths, is transmitted to an eccentric disc 13. On the eccentric 13 a connecting rod 14 is articulated outside of the axis of rotation, in turn, also via a hinged connection a telescopic rod holder 15 is fixed, with which the wiper head 8 opposite end of the telescopic rod 6 is firmly connected. The arrangement of engine, power transmission belt (see reference numeral 16 in Fig. 3), pulley 12, eccentric 13, connecting rod 14 and telescopic rod holder 15 forms a total of the drive 7. Turns the eccentric 13, thereby the telescopic rod holder 15 due to the lateral guidance of the Telescope rod 6 forced into an up and down movement, which implies a reciprocating motion of the telescopic rod 6 in its longitudinal direction. This reciprocation leads to a wiping along the wiping head 8 over the window surface F to be cleaned. As a result, as will be explained in more detail later, the rod guide unit 5 is pivotable relative to the machine body 4, a pressing force can be exerted on the wiper head 8 be so that it is guided in a reciprocating motion of the telescopic rod 6 with a pressing force on the window surface F. The pressure force can be partly maintained by the flexibility of the telescopic rod 6, on the other hand, it can by appropriate adjustment or tracking of the elbow 10 and thus adjusting the angle, i. Move the joint 9 to be maintained in a controlled manner.

Not shown in FIG. 1 is one in the region of the wiping head 8, e.g. in the form of one or more arranged there spray nozzles arranged water application unit and a Wasserzuführeinheit consisting of a typically arranged on the machine body 4 pump and corresponding pipe or hose lines with which the water, especially distilled water, along the telescopic rod 6 (for example The combination of the application of water together with the mechanical abrasion force guided by the applied pressure forces by means of the wiping head 8 allows a good and thorough cleaning of the window surface F and / or the surface of the cavity The use of distilled water will leave no residue or streaks on the cleaned surface even if drying is not undertaken.

Furthermore, in the region of the wiper head, a sensor unit likewise not shown in the figure can be arranged with the possible features and modes of action described above.

In Fig. 2, the machine according to the invention is again outlined as seen from another line of sight. In particular, it is essential to understand that the telescopic rod 6 in the fully extended state can reach a length of about 30-40 m, so that cleaned with the inventive machine 1 window F or other smooth surfaces to be cleaned in different high altitudes from the ground can be. The cleaning can be carried out particularly thoroughly due to the pressure applied to the mop head 8 by means of the pivotable rod guide unit 5, which can not be applied to a hand-operated conventional telescopic rod.

In Fig. 3 is also again in a schematic representation of the structure of the machine according to the invention in the region of the rod guide device 5 is shown. In particular, the elements of the drive 7, not shown in previous figures, are shown here, namely the drive motor 11 and the transmission belt 16, and it is indicated how the longitudinal guide of the telescopic rod 6 by the outermost telescopic segment surrounding guide rollers 17, the side of the telescopic rod. 6 , at the outermost telescopic segment snugly, is accomplished. In addition, indicated by 18 a Ausfahreinrichtung for automatically extending the telescopic segments of the telescopic rod 6, which is further indicated in the drawing that the telescopic rod 6 is still retracted here with at least two telescopic segments (see the step-like tapered portion of the telescopic rod 6 above the guide rollers 17, these tapered portions representing the upper ends of the retracted telescopic segments).

In the figures, not shown, as I said the Wasserzuführeinheit and the water applicator, also not a water reservoir for distilled water in particular, which is also provided in the region of the machine body 4 of the cleaning machine according to the invention.

In Fig. 4 is shown once again in an enlarged view a possible implementation of the drive 7 with individual elements, so that here the pulley 12, the eccentric disc 13, the connecting rod 14 and the telescopic rod holder 15 are more clearly seen in their interaction. Only indicated as a simple line is in the telescopic rod holder 15 with its outermost telescope segment back anchored telescopic rod. 6

Another schematic is shown in FIG. There it is shown how, for adjusting the angle of inclination of the bar guide unit 5 relative to the machine body 4, an actuator 19 can be used, e.g. a worm gear can be. Again indicated only as a line is the telescopic rod 6 with its arranged at the uppermost end mop 8. By double arrows in the area of the bar course within the bar guide unit 5, the reciprocating motion is indicated, the telescopic rod 6 experiences during the cleaning operation, driven by the here drive not shown.

In Fig. 6, the extension device 8 is again shown schematically in relation to a telescopic pole 6 with retracted telescopic segments, which are illustrated by the step-like upwardly tapering individual rod sections. The extension device 8 is shown enlarged here. In practice, the friction rollers 20 shown there are towards each other and thus spring-loaded in the direction of the surface of a telescopic segment lying between them and at least one of the friction rollers 20 is driven rollingly, but this can also be two or all three of the friction rollers 20 shown. The friction rollers 20 have a surface with good friction properties against the telescopic segments of the telescopic rod 6, which preferably consist of a fiber-reinforced plastic material, in particular carbon fiber reinforced plastic. By the pressure, e.g. pressed by spring elements or else by pneumatic or hydraulic actuators against the telescopic rod segments and due to the friction of their friction surfaces relative to the surface of the telescopic segments, the friction rollers 20, if they are driven at least with one of their roles, for an extension of the telescopic segments of the telescopic rod 6, can when driving in the reverse direction equally ensure a retraction. In that regard, the extension device 18 is not only one such for extending the telescopic rod, it can just as well be operated in the opposite direction for retracting the rod segments.

In FIGS. 7 and 8, the basic arrangement of the friction rollers 20 is shown in a position approximately offset by 120 ° about a center point, and it is indicated that the friction rollers 20 are pivotable in the direction of a common center and in this direction Spring force of spring elements 21 are spring loaded. This embodiment ensures that the friction rollers 20 safely abut the outer side of the same even with decreasing diameter of the individual telescopic segments and thus can cause an extension or retraction of the telescopic rod 6.

In Fig. 8, the locking of individual telescopic segments 6a, 6b is shown schematically against each other, which engages when the inner telescopic segment 6a has completely moved out of the next outer telescopic segment 6b. By means of corresponding openings in the outer telescopic segment 6b, locking pins 22 engage in the interior of this telescopic segment 6b, locking in the fully extended state of the inner telescopic segment 6a in openings or recesses of the wall arranged therein. Of these locking pins 22 at least two, preferably in particular three, possibly even more in a plane along the circumference of the telescopic rod 6 and the telescopic rod segment 6b are arranged. Advantageously, the locking of the extended telescopic rod can be designed so that the locking pins 22 are biased spring loaded in the locking position shown in Fig. 8, in the retracted state of the telescopic rod 6 and during operation of the machine (eg during extension of the telescopic rod 6) in particular Pneumatics are pressed against the spring preload in an unlocked position and held there. A pneumatic connection, which supplies the locking pins 22 with the appropriate compressed air and provides for acting against the spring preload force application, can be supplied with compressed air via a connection pin which engages in a corresponding arranged the next outer telescopic segment valve. If now the telescopic segment 6b in turn moved out of the next outer telescopic segment, the transfer pin releases from the valve, the valve closes and the latch pin 22 falls pressure-free, is held by the spring preload in the bolt representation shown in Fig. 8. In the opposite direction, the pressure connection is restored when retracting the telescopic rod by the penetration of a corresponding transfer pin in the valve, the locking pin 22 against the spring preload pressurized and led out of the locking position shown in Fig. 8 in an unlocked position in which he no longer engages the inner telescopic segment 6a, so that this can now be retracted in turn.

From the foregoing description of an embodiment has once again become clear, which benefits the cleaning machine according to the invention brings with it. With her in particular, as already stated several times, when cleaning facade surfaces or other cleaning smooth surfaces at high altitudes sufficient pressure on the mop head 8 are applied, which ensures a mechanical solution adhering dirt particles and thus the good cleaning effect in connection with the application of water, especially distilled water causes. Due to the adjustable inclination of the rod guide unit 5 relative to the machine body 4, depending on the working height, a suitable inclination can be set, which still ensures a pressure applied by means of this inclination adjustment. About the inclination adjustment and adaptation of a slope course of the surface to be cleaned can be assumed, so in particular overhanging or otherwise inclined facade surfaces, solar modules or the like. Surfaces can be cleaned easily and reliably with the cleaning machine according to the invention. In the machine according to the invention, in particular an adjustment of the stroke (ie the distance by which the telescopic rod 6 in its longitudinal direction of operation controlled by the drive moves back and forth) may be provided in order to make an adjustment to lengthwise extensions of the surfaces to be cleaned , In the exemplary embodiment shown, this can be done, for example, by using connecting rods 14 of different lengths or by connecting rod 14 to locations of eccentric disk 13 that are far away from the center of rotation.

The above descriptions and figurative representations are only intended to illustrate one possible embodiment and do not limit the general scope of the invention as set forth in the claims.

LIST OF REFERENCE NUMBERS
1 cleaning machine
2 suspension
3 tracks
4 machine body
5 rod guide unit
6 telescopic pole
6a, b Telescope segment
7 drive
8 mopping head
9 joint
10 elbow piece
11 drive motor
12 pulley
13 eccentric disc
14 connecting rod
15 telescopic rod holder
16 transmission belts
17 leadership role
18 extension device
19 actuator
20 friction roller
21 spring element
22 locking pin
F window, facade element

Claims

Cleaning machine for windows (F), facade elements, solar modules and the like smooth-surfaced surface elements, especially at high altitude, with

a) one on a chassis (2) arranged machine body (4);

b) one on the machine body (4) relative to this pivotally arranged rod guide unit (5);

c) one in the rod guide unit (5) arranged in its longitudinal direction movably, from one another telescoped segments (6a, 6b) constructed, at an innermost telescope segment a free end having telescopic rod (6) with a arranged at the free end mop head (8);

d) a drive (7) for reciprocating the telescopic rod (6) in the longitudinal direction relative to the rod guide unit (5) by a predetermined stroke;

e) a water applicator for applying water, in particular distilled water, to a surface to be cleaned in the region of the mop head (8); and

e) a water supply unit for supplying water, in particular distilled water, to the water applicator.
Cleaning machine according to claim 1, characterized in that the telescopic rod (6) in a maximally extended position has a length of over 20 m, preferably over 30 m, more preferably from 30 to 40 m.
Cleaning machine according to one of the preceding claims, characterized in that the wiper head (8) has a working surface covered with a wiping textile and / or with wiper bristles.
Cleaning machine according to one of the preceding claims, characterized in that it has in the region of the wiper head a sensor device for detecting the geometry and / or the contamination state of surfaces to be cleaned.
Cleaning machine according to one of the preceding claims, characterized by a motor drive for moving the mop head relative to the telescopic rod.
Cleaning machine according to one of the preceding claims, characterized in that it comprises a deployment device (18) for the automated extension of the telescopic segments (6a, 6b) of the telescopic rod (6).
Cleaning machine according to one of the preceding claims, characterized in that it has a blocking device (22) for blocking extended telescopic segments (6a, 6b) in their position relative to each other.
Cleaning machine according to one of the preceding claims, characterized by a Neigungsverstell- and pressure device (9, 10) on the innermost telescope segment of the telescopic rod (6).
Cleaning machine according to one of the preceding claims, characterized in that the chassis (2) is a crawler chassis.
Cleaning machine according to one of the preceding claims, characterized in that the chassis (2) is a self-propelled chassis.