EP1112015B1 - Cleaning device for the wings of sliding windows or doors - Google Patents

Abstract

A cleaning device for the wings (1, 2) of sliding windows or doors which overlap each other by their front ends in the closed position and which have edge sections (4, 7, 8, 11; 4', 7', 8', 11') embracing a glasswork (3, 3'), with at least the outer wing (1) being configured as a sliding wing mounted to be displaceable in a stationary framework (5) on the front-side edge section (4), facing the inner wing (2), as well as stationarily on the stationary framework (5) on the outer side of the outer sliding wing (1) close to the front side thereof, if the latter is in the closed position, facing the outer sliding wing (1), a respective cleaning ledge (18, 26) is attached which comprises at least one wiper ledge (19, 20) of a length corresponding to the height of the glasswork (3; 3') of the associated wing (2, 1) as well as a cleaning liquid duct (24) connected to a supply duct (27, 28); each cleaning liquid duct (24) is connected with a pump (29) arranged in the stationary framework (5) via a supply duct (27, 28) extending in the stationary framework (5) and is configured with spray openings (25) distributed over the longitudinal extension of the ledge (18, 26) corresponding to the height of the glasswork (3, 3'), and the supply duct (27) which is connected with the cleaning ledge (18) on the outer sliding wing (1) is formed by a hose comprising an additional length (30) housed in the stationary framework (5).

Description

The invention relates to a cleaning device for the Wing of sliding windows or doors, in which at least two Wings, an inner and an outer, are provided facing each other in the closed position overlap with end faces, and the have glazing for the sash enclosing edging profiles, wherein at least the outer wing as slidable in a stick frame mounted sliding sash is formed, on the frontal edging profile, facing the inner wing, as well as stationary on the stick frame on the outside of the outside Sliding wing near its front when it is in the Is in the closed position, facing the outer sliding sash, a cleaning bar is attached, at least one in their length the height of the glazing of the associated wing corresponding wiper strip and one to a supply line connected cleaning fluid line.

To clean the outside of permanently installed, not too Opening windows in modern buildings have already been different proposed automatic cleaning devices see, for example, EP-A-709 054 and US-A-4 809 384. There are special rails in the area of the stick frame to be provided in addition to fastening the glass panels support a chassis for mobile cleaning devices, which are necessary for the cleaning of the glass panels Elements include, such as spray nozzles and wiper blades, however also motor drive and pump for the cleaning liquid (usually Water). These known cleaning devices are therefore extremely complex and complex to construct and also take up a relatively large amount of space, so that they take on Facades of buildings appear conspicuous and impair their appearance.

The known cleaning devices are also for Cleaning the glazing of the sash from sliding windows or but also hardly suitable for sliding doors, as sliding windows or - doors have staggered wings in the depth that are arranged according to parallel planes and in the Close position overlap each other. Therefore one would have to be per wing Cleaning device, can be provided since the known Cleaning devices for sufficient adjustment in the Depth, i.e. across the plane of the sliding sash, not suitable are so that a cleaning device after installation only can be assigned to a wing.

From US 3 104 411 A is also a window with two sliding wings and with a cleaning device like known at the beginning. However, it is a manually operated cleaning device in which Water a cleaning bar with water outlet openings above Filling funnel supplied with the help of an external hose or the like becomes. Accordingly, there is no permanent water supply and the water supplied is depressurized, so that only one insufficient cleaning of the window sash is possible, apart from from the cumbersome handling.

The aim of the invention is to provide a cleaning device provide the type mentioned, which is a simple automatic, reliable and effective cleaning of the glazing the wing of the sliding window or doors allows, the Construction should be as simple as possible and moreover inconspicuous Should, so that the appearance of the sliding window or doors practical is not affected.

The sliding wing cleaning device according to the invention is mentioned in that each Cleaning liquid line through a running in the frame Supply line with one arranged in the frame Pump connected and with spray holes, along the length of the Strip distributed according to the height of the glazing, trained is, and that the sliding with the cleaning bar outer sliding wing connected supply line by a Hose formed with an additional length located in the frame is.

With such training, the above objective met in an advantageous manner, and it becomes a Cleaning device created that is extremely inconspicuous in the appearance of the respective sliding window or the sliding door inserts. If the wings of the sliding window or Sliding doors are moved horizontally relative to each other, this sliding movement is also necessary for cleaning Relative movement between cleaning elements and glazing exploited. In this way, a cleaning unit, i.e. a cleaning bar with cleaning liquid line and spray ports, movably arranged, and this simply by being in the front area of the movable outer sliding sash is mounted. The outer one Cleaning bar assigned to sliding sashes, however, can be stationary be attached to the stick frame, cleaning the Glazing of the outer sliding sash when moving the outer one Sliding wing relative to the stationary cleaning bar is realized. When the sliding window is closed or the door are the two cleaning strips - the both be relatively narrow and therefore extremely inconspicuous can - in the area of the front of the outer sliding sash, where its glass pane in the usual way in a vertical edging profile is bordered so that the two cleaning strips do not appear visually. The remaining parts of the cleaning device, like in particular the pump and its associated Motor, as well as the supply lines can be within the Stick frames can be attached stationary so that they are invisible remain and thus the appearance of the sliding window or door can also not affect. The overall construction is also comparatively easy because it is not very flexible Parts are present, and moreover, they do not have their own movable parts Need frame or the like, but directly on the a movable sliding sash can be attached. The Wings can both be adjusted by hand, it can however also for at least one of the wings, for example the inner wing, a motor drive provided for its adjustment be, cf. e.g. DE 24 36 171 A. With a sliding leaf motor drive can be a completely automatic cleaning of the wings can be achieved in the motor process, including this if necessary, a computer control can be provided. in the the present cleaning device is also suitable in that that with the cleaning bar on the sliding outer Sliding wing connected supply line through a Hose with an additional length in the frame is formed for larger sliding path lengths (and thus for large Sliding wing), and it can also be a visually appealing Outside be ensured. So it connects flexible hose the cleaning fluid line of the am Movable sliding sash attached cleaning bar with the Pump inside the stick frame, taking the hose with its Additional length compensates for the movement of the sliding sash provides. The additional length can in itself be a small hose reel with spring loaded core can be provided, which is similar to a cable drum automatically turns in the winding direction, so that the Hose is always wound up or kept taut. at larger sliding sash dimensions can, however, even if the Hoses have a comparatively small cross-section - in the area of a few millimeters - such a large drum diameter (together with hose) be the result that with an accommodation an oversize of the frame parts of the Stick frame required to accommodate the hose reel becomes. In contrast, it has proven to be advantageous if the additional hose length through a variable hose loop is formed. To keep the hose loop to achieve under tension and so an orderly undressing or pulling the hose when the To ensure sliding wing, it is also an advantage if the hose loop with a springy one, for shortening the loop adjustable against the spring force Hose reel is formed. With this training thus ensures the sprung hose reel in the manner of a dancer roll that the hose is always kept under a certain tension and thus has an orderly course.

It has also proven to be cheap if the with the line of the cleaning bar fixed to the frame connected supply line through a fixed in the frame arranged hose line is formed. Even if so this supply line must be fixed with regard to its length can, if it is formed by a hose line assembly is made easier, as is usually the case frame parts formed by profile sections with closed chambers are, then the hose lines are simply in these profiles can be threaded.

To easily create the possibility in the given It is also necessary to clean one of the wings Favorable if in at least one of the supply lines, e.g. in the supply line to the stationary cleaning bar Shut-off device is arranged.

The pump itself can have an appropriate suction or Supply line with a container provided at any point be connected for the cleaning liquid; is particular it is conceivable to have a central container for several side by side to provide arranged sliding windows. However, around every sliding window or to design each sliding door autonomously, the cleaning device practically in the sliding window or sliding door construction should be integrated, it is from Advantage if the pump has a supply line with one in the bottom Frame part of the stick frame provided cleaning liquid container connected is. It is space-saving Training with a sufficiently large volume is also cheap, if the elongated, e.g. Box profile-like containers essentially over the entire length of the lower frame part of the stick frame. It is also advantageous if that Container in an upper end wall at least one inlet opening for supplying driving rain, condensation or the like. and also for refilling cleaning fluid, in particular Water. Through the inlet opening any condensation or driving rain that may form can be used, and moreover, the required cleaning liquid, i.e. water, if necessary in addition also cleaning agents and antifreeze, in the Container to be filled. To ensure the supply of water etc. To simplify, it is also convenient if the inlet opening deepened between raised profile webs of the lower frame part of the stick frame is arranged. The high profile webs can act like funnel walls, so the filling to facilitate the container.

An advantageous embodiment is also characterized in that that an overflow line is connected to the container which extends to the outside of the stick frame drain overflowing cleaning liquid. In this way excess water on the outside of the building the outer facade. It is for easy and concealed arrangement of the overflow line expedient, if the overflow line at the bottom of a known per se Way provided outer window sill is arranged.

An efficient, narrow design of the cleaning strips can be achieved if each cleaning bar is replaced by an in a rigid mounting profile held in one piece Plastic or rubber profile with a cleaning fluid line longitudinal channel, across which the spray openings connect, as well as with the at least one wiper strip for permanent contact with the glazing of the corresponding wing is formed. It is also an advantage if two wiper strips in the form of a U-shaped cross section from one of the Channel-containing web projecting legs are provided. With this more or less symmetrical arrangement of the wiper strips can regardless of the direction of movement of the Sliding sash can always be reached that the one wiper strip a pre-cleaning and the other wiper strip then a dry wipe the disc, i.e. wiping the between the wiper strips ejected cleaning liquid. On the other hand, it is often cheap if a single wiper strip on a web containing the channel with respect to the Channel is formed laterally offset. With this training can with a forward stroke of the sliding sash the single wiper strip cause a dry pre-cleaning of the glass pane, and immediately behind it the canal flows through the spray openings the cleaning liquid sprayed. This liquid during the backward stroke of the sliding sash through the wiper strip collected and wiped so that the glass pane or Glazing is dried. For a lateral deflection of the Wiper strip during the cleaning process, it is also cheap if the wiper strip has one over the other wiper strip thin connector on the web.

For reliable wetting and cleaning of the glazing it has proven to be useful if the spray openings in mutual distances in the cm range, e.g. at intervals of 1 up to 4 cm. It is also favorable for this if the Spray openings in the upper glazing area more closely arranged are as in the lower range. It is also an advantage if the spray openings have a diameter in the tenth of a millimeter range, e.g. 0.1 to 0.3 mm.

For supplying the spray openings with cleaning fluid or water, it has proven to be sufficient if the lines of the cleaning strips have a round cross-section a diameter in the mm range, e.g. 2 to 4 mm, in particular 3 mm.

Fig. 1 eine schematische Ansicht eines Schiebefensters mit zwei Schiebeflügeln und einer diesen zugeordneten Reinigungsvorrichtung mit zwei Reinigungsleisten;

Fig. 2 einen schematischen Horizontalschnitt durch ein solches Schiebefenster;

Fig. 3 einen zugehörigen Vertikalschnitt, ungefähr gemäß der Linie III-III in Fig. 2; und

Fig. 4 einen Querschnitt durch ein Kunststoffprofil für eine modifizierte Reinigungsleiste.

The invention is further explained below on the basis of preferred exemplary embodiments shown in the drawing, to which, however, it should not be limited. Show it:

Figure 1 is a schematic view of a sliding window with two sliding sashes and a cleaning device associated with them with two cleaning strips.

2 shows a schematic horizontal section through such a sliding window;

3 shows an associated vertical section, approximately along the line III-III in FIG. 2; and

Fig. 4 shows a cross section through a plastic profile for a modified cleaning bar.

1 to 3 is a sliding window with two sliding sashes 1, 2 illustrates its basic Construction is known per se, cf. for example the AT 390 473 B. In this respect, a detailed description the construction of the sliding window is unnecessary, and it is enough to mention here that each sliding sash 1, 2 a glazing 3rd or 3 ', the enclosing profiles in them are composed; for example, the one shown in the sliding window outer sliding sash 1 a front vertical edging profile 4, a rear, in the closed position the stick frame 5 or a vertical frame profile 6 attached there closer vertical edging profile 7, a lower edging profile 8, that with rollers 9 (s. Fig. 3) to move on a lower frame profile 10 is provided, and an upper one horizontal edging profile 11.

In a corresponding manner, the inner sliding wing 2 has the closer to the room closed off by the window, a middle one vertical border profile 4 ', cf. Fig. 2 (in Fig. 1 is this border profile 4 'by the corresponding middle Binding profile 4 of the outer sliding wing 1 covered, as from Fig. 2 can be seen), a lower horizontal border profile 8 ', a frame profile 7' and an upper horizontal Border profile 11 '. In the upper central corner areas are the two sliding panels 1, 2 for example with Telescopically extendable, inward against spring force pressable sealing caps 12, 12 'provided in Fig. 3rd are shown in section. For one or both sliding sashes 1, 2, a motor drive can also be provided, which in the Drawing is not shown. On the other hand, it is too conceivable to fix the inner wing 2 and only the outer Run wing 1 as a sliding sliding wing. This sliding sash 1 can of course also be done manually be adjusted.

The glazings 3, 3 'can in themselves be simple glasses, but preferably as insulating or composite glasses, as shown, be executed.

The stick frame 5 is made of a lower horizontal frame part 13, an upper horizontal frame part 14, one according to the representation in Fig. 1 left, wider vertical frame part 15 and an opposite right vertical frame part 16 composed. These frame parts 13, 14, 15, 16 are formed, for example, by hollow profiles, and on them are the already mentioned frame profiles 6, 10 and 6 'and upper profiles 17 (see Fig. 1) attached for guidance and sealing the sliding sash 1, 2 serve.

1 and 2 overlap one another the two sliding panels 1, 2 in the middle, with the edging profiles 4, 4 'side by side or - in the direction of view through the Windows - available one after the other. On the border profile 4 of the outer Sliding wing 1 is a cleaning bar 18 on the end face attached, which extends over the height of the glazing 3 'of the interior Sliding wing 2 extends and in the closed position shown of the two sliding sash 1, 2 and due to their front Attachment to the outer sliding sash 1 at the edge of the glazing 3 ' of the inner sliding wing 2 immediately afterwards vertical border profile 4 'is present. The details are two wiper strips 19, 20 of a rubber or plastic profile 21 to that with its actual body or web 22 in one metallic fastening profile 23, e.g. pressed into this is. The mounting profile 23 is on the front side of the Insert profile 4 of the outer sliding wing 1, for example fixed by screwing or gluing. In the web 22 of the U-shaped cross section Plastic or rubber profile 21 is a cleaning liquid line 24 in the form of a longitudinal channel or a longitudinal bore provided, and the two wiper strips 19, 20 are related this cleaning liquid line 24, in plan view 2 seen symmetrically on both sides of it Center plane arranged, according to the legs of the "U" formed in cross section. Between the two wiper strips 19, 20 are 22 spray openings vertically one above the other in the web provided, these spray openings in Fig. 1 schematically are indicated at 25.

A corresponding cleaning bar 26 is stationary on Stick frame 5 arranged, specifically at the bottom or upper frame part 13 or 14 attached frame profiles 10 or 17, as can best be seen from FIG. 1. This stationary, assigned to the outer sliding sash 1 Cleaning bar 26 is arranged so that it is in the closed position of the window on the edge of the glazing 3 of the associated Sliding wing 1 is present, as can be seen from FIGS. 1 and 2 is. It in turn has a metallic fastening profile 23 on, in which an identically formed plastic or rubber profile 21 is pressed, which two wiper strips 19, 20 on has a web 22; in the web 22 there is again a longitudinal bore or a longitudinal channel as a cleaning liquid line 24 is available. Are also in turn corresponding to a vertical line one above the other spray openings (not shown in detail) on the web 22 attached between the two wiper strips 19, 20.

The cleaning fluid lines 24 of the two cleaning strips 18, 26 are in the frame 5, namely in individual in its upper frame part 14 and further in the vertical, wide frame part 15, extending supply lines 27 or 28 with a wide vertical frame part 15 arranged pump 29 connected. The one with the stationary Cleaning bar 26 connected supply line 28 firmly be attached, however, the supply line 27 for the movable cleaning bar 18 as a hose with an additional length 30 in the form of a hose loop 31 inside the vertical Frame part 15 formed so as to move the outer sliding wing 1 together with the attached on the front Cleaning bar 18 a moving of the upper portion 32nd the supply line 27 within the upper frame part 14 enable. The cleaning strips 18, 26 can preferably with the supply lines formed by flexible hoses 27, 28 by connected to them via angle 33 rigid vertical line pieces 34 and 35 may be connected. It is also conceivable, at least in the case of the line piece 35 to be designed as a hose, since there is no movement, (with a power transmission to the associated supply line 28) takes place. The line pieces 34, 35 are by corresponding Openings on the underside of the upper frame part 14 of the stick frame 5, wherein in the case of the movable cleaning bar 18 the associated line piece 34 by a Slot opening, if necessary with lip or brush seal in contact with the line section 34, passes through what in the Drawing is not shown in detail.

The hose loop 31 is between two fixed Rollers 36, 37 and a movable, resiliently held Hose reel 38 formed in the manner of a dancer roll, wherein the movable hose reel 38 by a tension spring 39 after is pulled down, so that the hose loop 31 is tensioned hold.

In one supply line, for example the supply line 28, is further as shown in FIG. 1 Shut-off device 40 arranged so as to possibly only one To be able to clean sliding sash 2. Of course it is possible and preferable, also in the other supply line 27 to arrange a corresponding shut-off device, but what is not illustrated in the drawing.

The pump 29 is connected to a container via a feed line 41 42 for a cleaning liquid, in particular water, this container 42 in the lower frame part 13 of the Floor frame 5 provided in the form of an elongated box or is trained. The container 42 extends over the entire length of the lower frame part 13. The container 42 is located on the inside of the window, as shown in FIGS. 2 and 3 emerges, and it is with an upper inlet opening 43 in an upper end wall 44 is provided. The inlet opening 43 can For example, be formed by a piece of pipe that is tight in sealing plastic strip 45 above the container 42 is inserted and with its upper end in the bottom of the frame profile 10 'for the inner sliding wing 2 opens; the inlet opening 43 is accordingly between upstanding profile webs 46, 47 (Fig. 3), which is a gutter or a kind of funnel for the Form inlet opening 43. This will refill the cleaning liquid (Water, cleaning agents, antifreeze) as well as the supply of any condensation or driving rain, that accumulate on the inside of the window could be relieved.

At the end of the container 42 in the area of the two vertical frame parts 15, 16 each have an overflow line 48 on upper container edge outside, at 49 (see FIG. 3), and this Overflow lines 48 extend to the underside of one usual window sill 50 (of a weatherboard) to overflow To drain water from the container 42 to the facade side and let it run there. It should be mentioned that the Window sill 50 in the representation in Fig. 1 of the better overview was omitted because of.

In Fig. 4 is compared to the training shown in Fig. 2 of the plastic or rubber profile 21 for the cleaning bar 18 or 26 modified embodiment of a profile 21 ' shown, here in a web or longitudinal body 22 'from the latter Center moves the cleaning liquid line 24 again in the form of a longitudinal channel or a longitudinal bore with a round Cross section, is arranged. One is offset to the side single wiper strip 19 'available, which by way of comparison thin connecting part 51 integrally connected to the web 22 ' is, whereby a good mobility of the wiper strip 19 'is ensured on both sides. At this Embodiment of the profile 21 'is when the outer sliding wing 1 as shown in FIGS. 1 and 2 dry pre-cleaning to the left through the wiper strip 19 ' the respective glazing 3 or 3 'obtained, and immediately behind it is the cleaning liquid from the line 24 through the spray openings 25 onto the outside of the glazing 3 or 3 'injected. On the return stroke, i.e. when moving of the outer sliding wing 1 as shown in Fig. 1 and 2 to the right, spraying is stopped by turning off the Pump 29 set, and the wiper strip 19 'now wipes over the glazing 3 or 3 'to wipe it dry.

Of course, cleaning the outside of the Glazing 3 'of the inner sliding sash 2, even when it is stationary outer sliding sash 1 can be accomplished that the inner sliding wing 2 as shown in FIG. 1st and 2 first to the right and then back to the left in the starting or closed position shown is moved while the outer sliding leaf 1 immovable in the shown The closed position remains. This would be because the outer sliding sash 1 is not moved, the outer, stationary cleaning bar 26 switch off, i.e. the inflow of cleaning fluid would be shut off by means of the shut-off device 40 in order to unnecessary splashing of water onto the stationary glazing 3 avoid.

The cleaning liquid lines 24 of the cleaning strips 18, 26 or more precisely the profiles 21 and 21 'are preferred circular in cross-section; the diameter can be in the range of a few millimeters, for example between 2 and 4 mm, are preferably 3 mm. The actual cross section naturally depends on the amount of the cleaning glass surfaces and accordingly with the required amount of Cleaning liquid together. The spray openings 25 can as schematically indicated in Fig. 1, narrower in the upper region Distances from each other than in the lower area to so to take into account the fact that the cleaning liquid flows from the top to the bottom of the glass. The spray openings 25 themselves have a cross section or diameter in Range of tenths of a millimeter, with the diameter for example Can be 0.1 to 0.3 mm. The distances between the spray openings 25 can be, for example, 1 to 4 cm.

The pump 29 can be integrated into the Drawing not illustrated DC motor driven with the entire motor-pump unit being cylindrical Shape with a diameter of approximately 3 cm and can have a length of about 6 to 8 cm. The pump 29 or their motor, for example a 12V motor, can also be used be computer-controlled, which is particularly advantageous although as mentioned, a motor drive for the sliding sash 1, 2 (or at least one of the sliding panels 1, 2) is provided is.

Claims (19)

1. A cleaning device for the wings of sliding windows or doors which comprise at least two wings (1, 2), an inner and an outer one, overlapping each other by their front ends in the closed position, and which have edge sections (4, 7, 8, 11; 4', 7', 8', 11') embracing a glasswork (3, 3') of the wings (1, 2), with at least the outer wing (1) being configured as a sliding wing mounted to be displaceable in a stationary framework (5), and with a respective cleaning ledge (18, 26) being attached at the front-side edge section (4), facing the inner wing (2), as well as stationarily on the stationary framework (5) at the outer side of the outer sliding wing (1) close to the front side thereof, if the latter is in the closed position, facing the outer sliding wing (1), each cleaning ledge comprising at least one wiper ledge (19, 20) of a length corresponding to the height of the glasswork (3; 3') of the associated wing (2, 1) as well as a cleaning liquid duct (24) connected to a supply duct (27, 28), characterised in that each cleaning liquid duct (24) is connected with a pump (29) arranged in the stationary framework (5) via a supply duct (27, 28) extending in the stationary framework (5) and is configured with spray openings (25) distributed over the longitudinal extension of the ledge (18, 26) corresponding to the height of the glasswork (3, 3'), and that the supply duct (27) which is connected to the cleaning ledge (18) on the displaceable, outer sliding wing (1) is formed by a hose comprising an additional length (30) provided in the stationary framework (5).
2. A cleaning device according to claim 1, characterised in that the additional hose length (30) is formed by a variable hose loop (31).
3. A cleaning device according to claim 2, characterised in that the hose loop (31) is formed with a resiliently held hose roller (38) adjustable for shortening the loop (31) against the spring force.
4. A cleaning device according to any one of claims 1 to 3, characterised in that supply duct (28) connected with the duct (24) of the cleaning ledge (26) stationarily attached on the stationary framework (5) is formed by a hose duct fixedly arranged in the stationary framework (5).
5. A cleaning device according to any one of claims 1 to 4, characterised in that a locking member (40) is arranged in at least one of the supply ducts (27, 28), e.g. in supply duct (28) to the stationary cleaning ledge (26).
6. A cleaning device according to any one of claims 1 to 5, characterised in that the pump (29) is connected with a cleaning liquid container (42) provided in the lower frame part (13) of the stationary framework (5) via a supply duct (41).
7. A cleaning device according to claim 6, characterised in that the elongate, e.g. box-section-type container (42) extends substantially over the entire length of the lower frame part (13) of the stationary framework (5).
8. A cleaning device according to claim 6 or 7, characterised in that at least one inlet opening (43) for supplying driving rain, condensation water or the like as well as for refilling cleaning liquid, in particular water, is associated to the container (42) in an upper end wall.
9. A cleaning device according to claim 8, characterised in that the inlet opening (43) is arranged at a lower level between upwardly projecting section webs (46, 47) of the lower frame part (13 or 10, 10', respectively) of the stationary framework (5).
10. A cleaning device according to any one of claims 6 to 9, characterised in that an overflow duct (48) is connected to the container (42) and extends to the outer side of the stationary framework (5) so as to conduct away overflowing cleaning liquid.
11. A cleaning device according to claim 10, characterised in that the overflow duct (48) is arranged on the lower side of an outer window sill (50) provided in a manner known per se.
12. A cleaning device according to any one of claims 1 to 11, characterised in that each cleaning ledge (18, 26) is formed by a one-piece plastics or rubber section (21; 21') retained in a rigid fastening section (23) and comprising a longitudinal channel forming the cleaning liquid duct (24) which is transversely followed by the spray openings (25), as well as with the at least one wiper ledge (19, 20; 19') for permanent abutment on the glasswork (3, 3') of the associated wing (1, 2).
13. A cleaning device according to claim 12, characterised in that two wiper ledges (19, 20) are provided in the form of legs projecting, when seen in cross-section, U-like from a web (22) which contains the channel.
14. A cleaning device according to claim 13, characterised in that a single wiper ledge (19') is moulded to a channel-containing web (22') in a manner laterally offset relative to the channel.
15. A cleaning device according to claim 14, characterised in that the wiper ledge (19') follows the web (22') via a connecting part (51) which is thin as compared to the remaining wiper ledge.
16. A cleaning device according to any one of claims 1 to 15, characterised in that the spray openings (25) are arranged spaced from each other in cm-range, e.g. at intervals of from 1 to 4 cm.
17. A cleaning device according to any one of claims 1 to 16, characterised in that the spray openings (25) are arranged more closely to each other in the upper glasswork region than in the lower region thereof.
18. A cleaning device according to any one of claims 1 to 17, characterised in that the spray openings (25) have a diameter in the range of tenths of a millimeter, e.g. 0.1 to 0.3 mm.
19. A cleaning device according to any one of claims 1 to 18, characterised in that the ducts (24) of the cleaning ledges (18, 26) have a round cross-section having a diameter in the range of mm, e.g. from 2 to 4 mm, in particular 3 mm.

Images