WO2008028757A1

WO2008028757A1 - Hard floor nozzle

Info

Publication number: WO2008028757A1
Application number: PCT/EP2007/058377
Authority: WO
Inventors: Marko Geis; Carsten Hauptlorenz; Florian Schmitt; Thomas Seith
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2006-09-05
Filing date: 2007-08-14
Publication date: 2008-03-13
Also published as: DE202007018652U1

Abstract

The invention relates to a hard floor nozzle which is suitably designed for vacuum-cleaning and wiping. In order to improve the supply with moisture, the floor nozzle has a liquid supply device (50) having a liquid reservoir (1) for a wiper element, said device being provided with a liquid line (52, 104, 151a, 151b) arranged in the floor nozzle to supply liquid from the liquid tank (11) to the wiper element (5).

Description

Floor nozzle for hard floors

The present invention relates to a novel floor nozzle for hard floors.

From EP 542 193 B1 a cleaning head for plane surfaces is known in which a cleaning zone is arranged between two suction chambers. Wiping devices are arranged on the opposite side of the suction zone of the suction chambers. Between the suction chambers and the cleaning zone, a brush is used in each case as a friction agent for the planar surfaces. The cleaning fluid is supplied from outside the cleaning head.

Proceeding from this, the object of the present invention is to improve the moisture retention in the case of floor nozzles for hard floors, which are designed to be suitable for suction and wiping work.

This object is achieved by a floor nozzle for hard floors, which has a liquid supply device for a wiper, which comprises a liquid line for conveying liquid from a liquid tank to the wiper. The liquid line serves to provide liquid at defined locations of a moisture transfer device. The moisture transfer device serves to distribute the supplied liquid evenly and to transfer it to a wiping agent over a wide area. The uniform liquid supply has the advantage that all parts of the wiper are moistened uniformly and consequently the entire wiper can be used completely for the wet cleaning. This increases the application time for the wiper.

The liquid line for applying liquid to a planar moisture transfer device may preferably have at least one application nozzle. The application nozzles apply the liquid provided via the liquid line with pinpoint accuracy to the moisture transfer device. By using application nozzles, the liquid can be accurately fed at a certain point or at several predefined points. This has the advantage that, depending on the design of the Moisture transfer device and the wiper or the wipe the best order points for a supply of liquid can be set.

In an advantageous embodiment, the at least one application nozzle is mounted in a position for applying the liquid on a front half in the sliding direction of the planar moisture transfer device in the floor nozzle. In that the liquid is applied in a front region of the floor nozzle, a particularly good liquid distribution can be achieved. Due to the bottom nozzle movement in the sliding direction, the liquid applied via the application nozzles is pressed into a rear region of the floor nozzle. Experience has shown that with the use of floor nozzles during a forward movement, more pressure is exerted by the user on the floor nozzle than in a movement for pulling the floor nozzle. Therefore, applied liquid is pressed particularly well in a forward movement in the moisture transfer device. At the same time, due to the forward movement, the applied liquid is massaged between the floor nozzle and the floor with a movement component directed backwards into the moisture transfer device. Thus, it is particularly advantageous to apply the liquid in a front region of the floor nozzle in order to achieve uniform moisture penetration of the moisture transfer device and thus of the wipe.

The at least one application nozzle can be mounted in the front quarter of the planar moisture transmission device in the floor nozzle. Despite the liquid-conveying effect of a bottom nozzle movement for conveying liquid backwards, part of the liquid is always pressed forward due to the contact pressure of the floor nozzle with the floor. This circumstance is taken into account by the position of the application nozzles, in which they are not positioned completely at the front end of the moisture transfer device, but in a front quarter of the planar moisture transfer device. This ensures a particular degree of uniform liquid distribution.

Ideally, two application nozzles are provided. When used in conventional types of floor nozzles with a nozzle width between 200 and 400 millimeters and in view of the liquid to be transferred, it is advantageous, seen over the nozzle width to provide two application nozzles. The two application nozzles can be arranged at a distance of between 30% and 50%, preferably of approximately 40%, of the nozzle width from one another and arranged mirror-symmetrically to a center line running in the sliding direction on the floor nozzle. Thus, a uniform distribution of the liquid over the entire width of the floor nozzle is achieved.

In one embodiment, the two application nozzles are each connected to a separate line end portion of the liquid line and both liquid lines connected to a common pump. In that the two application nozzles are attached to separate line end sections, both application nozzles can transmit the same amount of liquid to the moisture transfer device almost independently of each other.

Preferably, the two-dimensional moisture transfer device is made of an open-pore, sponge-like or capillary-containing material. The moisture transfer device may be made of a material containing capillary for distributing liquid from the liquid supply device. The capillaries have the function to distribute the liquid provided by the liquid supply device only selectively over a surface as evenly as possible. The capillaries form flow channels in which the liquid is passed on without the need for additional external delivery. The capillaries can be designed to supply the wipe uniformly with liquid.

Preferably, the moisture transfer device is made of an open-pored sponge-like material. In open-pore spongy materials capillaries are already integrated in sufficient quantity and very evenly distributed. So no capillaries must be introduced by separate manufacturing processes.

The liquid supply device is integrated in an advantageous embodiment in the floor nozzle. This creates a very self-sufficient wet cleaning device. It also eliminates additional interconnections that would have to be connected by the user and could interfere during operation. Thus, the use of the floor nozzle according to the invention is facilitated. - A -

The wiping means may be a wiper which lies flat against the moisture transfer device. This wipe can preferably be held detachably on the moisture transfer device. For this purpose, the wiping medium carrier may have clamping strips for holding the edge sections of the wipe in a position of the wipe lying flat against the bottom nozzle over the underside of the wiping medium carrier. The terminal strips preferably fix the ends of the wipe to the floor nozzle or the wiping agent carrier. By using terminal strips, the wipes can be easily and quickly fixed and released again from the floor nozzle. This facilitates handling for a user.

The figures show exemplary details of a hard floor nozzle according to the invention, also a safety valve arranged on the nozzle. From the arranged on or in the nozzle tank, a line leads to the pump, with the aid of which the water is conveyed to an at least partially formed as a sponge wiper. The sponge is preferably open-pored. The liquid is transferred to the sponge at two points. Due to the capillary action and the movement of the nozzle, the liquid is distributed over the entire sponge. This then passes the liquid, for example, on a wipe, which preferably rests directly on the sponge. By applying pressure to the nozzle, the sponge is squeezed out and the liquid is dispensed to the cloth.

The advantage of the aforementioned solution lies in the automatic and even distribution of water through a sponge.

The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in any combination for the realization of the invention in its various forms.

An embodiment of the invention is described with reference to a floor nozzle exemplified in the figures. Show it:

Figure 1 is a side perspective view of a floor nozzle for hard floors, which is designed for the work sucking and wiping suitable;

Figure 2 is a perspective view from above of the floor nozzle of Figure 1 with the liquid tank removed.

Figure 3 is a perspective view of the liquid tank;

Figure 4 is a cutaway view of the line path of a liquid supply device with cut liquid tank;

FIG. 5 shows the line course from FIG. 4 from an opposite view;

Figure 6 shows the arrangement of Figure 5 in a plan view.

Figure 7 shows the arrangement of Figure 5 in a view from below.

Figure 8 is a side view of the arrangement of Figures 5 to 7;

Figure 9 is a perspective view of a control means according to the invention;

Figure 10 shows the control means of Figure 6 in a sectional view.

Figure 1 1 is a bottom view of the wiper means carrier;

Figure 12 is a bottom view of the liquid supply device.

A floor nozzle according to FIG. 1 has a housing shell 1. This housing shell 1 is formed with a rectangular contour. Adjacent to two opposite longitudinal sides of the housing shell 1 are a front in the sliding direction of the floor nozzle, shown in Fig. 1 left Saugkanalmundstück 2 and in the sliding direction of the floor nozzle behind, in Figure 1 right illustrated Saugkanalmundstück 3 on the Bo stored dendüse. The front Saugkanalmundstück 2 and the rear Saugkanalmundstück 3 are pivotally mounted in the arrow direction on the floor nozzle. At the floor nozzle, a wiping agent carrier 4 is attached. At the bottom of the wiper support 4 is a wipe 5 at. In the illustrated, attached to the wiper support 4 position of the wipe 5 are the front Saugkanalmundstück 2 and the rear Saugkanalmundstück 3 in a closed position in which the wipe 5 is held flat against the underside of the wiper support 4. In the illustrated closed position of the Saugkanalmundstücke 2 and 3, the opposite longitudinal edge portions 6 and 7 of the wipe 5 are clamped in a front clamping gap 8 and a rear nip 9 fixed to the floor nozzle.

A liquid supply device 50 has a liquid tank 11. The liquid tank 1 1 is detachably held on the floor nozzle. On the liquid tank 1 1, an elastic detent spring 12 is fixed, which has a handle portion 13. The handle portion 13 is formed integrally with the detent spring 12. The detent spring 12 is made of plastic and molded directly to the liquid tank 1 1. The detent spring 12 holds the liquid tank 1 1 fixed in a latched position on the floor nozzle. In addition, a filling opening 14 of the liquid tank 1 1 is closed by a lid 15 by means of the detent spring 12.

The floor nozzle is connected via a connection joint 16 with a receiving socket 17 for a suction pipe of a vacuum cleaner. The connection joint 16 is formed by a joint socket 18 and a joint ball 19. The joint socket 18 is provided in the floor nozzle and the joint ball 19 is connected to the receiving socket 17. The connection of the joint ball 19 to the receiving socket 17 is designed as a snap-locking connection 20. The snap-locking connection 20 is not rigid, but has a degree of freedom, so that the receiving socket 17 is rotatably mounted with respect to the joint ball 19 about a coaxial with the receiving port 17 extending axis of rotation 21. To realize this rotation about the axis of rotation 21, the receiving socket 17 has a plurality of circumferentially spaced inwardly directed latching hooks 22, which engage in an outwardly directed circumferential latching groove 23 at a connection 24 of the joint ball 19. Fig. 2 shows the floor nozzle of Fig. 1 with removed liquid tank 1 1. In the housing shell 1 of the floor nozzle a receiving recess 49 for the liquid tank 1 1 is provided. The receiving recess 49 is integrally formed in the housing shell 1 of the floor nozzle. A liquid supply device 50 integrated into the floor nozzle has a connection connection 51, which is connected to a delivery line 52. The connection connection 51 has a hollow cylindrical dome 53, at the upper end of which a hollow needle valve 54 is arranged. Via a provided at the free end of the hollow needle valve 54 opening 1 1 liquid is sucked from the liquid tank, which flows through the hollow cylindrical dome 53 into the feed line 52. The negative pressure for the suction of liquid from the liquid tank 1 1 is generated by a pump 100 which is connected to the delivery line 52.

The pump 100 is designed as a diaphragm pump and inserted into a pump chamber 55 in the housing shell 1 of the floor nozzle. The pump chamber 55 is formed integrally with the housing shell 1. The pump 100 has the deflectable membrane 101, which can be activated by the ball 102 movably mounted in the floor nozzle. Due to a deflection of the membrane 101, a defined amount of liquid is pumped by the pump 100. The ball 102 is rolling freely in a direction in the gutter 103 of the floor nozzle. The channel 103 is integrally formed on the housing shell 1 of the floor nozzle. The curvature of the channel 103 is adapted to the diameter of the ball 102, so that the ball 102 is guided in the channel 103 and a lateral deflection of the ball 102 is limited. The channel 103 extends substantially in the sliding direction of the floor nozzle, so that the ball 102 is guided on a path on which the ball 102 can move freely in the sliding and pulling direction of the floor nozzle within a distance. The movement of the ball 102 along the distance of the channel 103 is induced in a forward or backward movement of the floor nozzle in the sliding direction or pulling direction due to the inertia of the ball 102. With a backward movement performed by the floor nozzle, which is introduced from a position of the ball 102 remote from the diaphragm 101, the ball 102 at the front end of the distance of the trough 103 abuts against the stop field 131 of the diaphragm 101 of the pump 100, so that the Membrane 101 is set in motion and due to their deflection movement inwardly promotes a defined amount of liquid from the feed line 52 to a moisture transfer device 150. As the bottom nozzle advances, the ball 102 moves from the diaphragm 101 to the position away from the diaphragm 101 back and the membrane 101 can return to its original position. During its movement back to the initial position, a negative pressure is generated in the pump chamber 14 of the pump 100, which draws in a quantity of liquid via a feed line 104 from the liquid tank 11.

In Figure 3, the liquid tank 1 1 is shown. The liquid tank 1 1 has a chamber 26 for storing liquid. The chamber 26 is designed substantially parallelepiped and has an upper ceiling wall 27, a lower bottom wall 28 and four side walls 29 in the ceiling wall 27, the filling opening 14 is introduced. The filling opening 14 is closed by the lid 15. Between filling opening 14 and lid 15, a sealing seal 30 is interposed. The closure seal 30 is attached to the lid 15, for example. The lid 15 is releasably secured by means of a detent spring 12 to the liquid tank 1 1. A release of the lid 15 from the liquid tank 1 1 takes place by pivoting the detent spring 12 laterally outwardly from the lid 15. A manual pivoting of the detent spring 12 is facilitated by the grip portion 13, which is formed on the detent spring 12, so that an actuation of the handle portion 13 transmits to the detent spring 12 and this can be pivoted to release the latching connection to the lid 15 ,

The liquid tank 1 1 is integrated into a design panel 37 of the floor nozzle. The design panel 37 is cupped and adapted in shape and size to the shape of the floor nozzle. The design panel 37 extends over approximately the entire width of the floor nozzle. The design panel 37 has a collar cutout 38, which is cut out of the design panel 37 as an open-sided cutout with an arcuate contour. In the covered position of the design panel 37 on the floor nozzle, the contour of the joint ball 19 of the connection joint 16 can emerge from the nozzle plane via the collar cutout 38. About the collar cutout 38 with one-sided open cutout and arcuate contour a waisted constriction is created in the design panel 37, which forms a handle 39 for the liquid tank 1 1. A window cutout 40 for a viewing window 41 is introduced at an end of the design panel 37 opposite the liquid tank 1 1. The window opening 40 is cut out as a one-sided open cutout in the design panel 37. The inserted window 41 allows in the installed position of the design panel 37 in the floor nozzle an insight on the underlying pump 100 and the ball 102nd In the lower bottom wall 28 of the chamber 26, a bush-shaped recess 31 is formed, which is adapted in shape and size to the dome 53 of the liquid supply device 50 in the housing shell 1 such that the sleeve-shaped recess 31 in the installed position of the liquid tank 1 1 in the floor nozzle fits exactly over the dome 53.

As also indicated in FIG. 4, a spout 32 corresponding to the hollow needle valve 54 of the housing shell 1 is equipped with a discharge opening 33. At the discharge opening 33, a sealing valve 34 is attached. In the inserted into the floor nozzle position of the liquid tank 1 1, the hollow needle valve 54 of the housing shell 1 penetrates into the sealing valve 34 of the discharge opening 33 at the outlet 32, so that the outlet 32 is opened and liquid from the liquid tank 1 1 via the outlet 32 and the connection connection 51 on the housing shell 1 in the conveying line 52 of the liquid supply device 50 can be conveyed out. The discharge opening 33 is located near the upper end of the height of the liquid tank 1 1, so that when liquid tanks 1 1 are removed, no or only a small liquid column is present at the closed discharge opening 33. So that the entire liquid content can be pumped out of the liquid tank 1 1 during operation of the floor nozzle, the discharge opening 33 is connected to a suction line 35 whose free intake opening 36 extends close to the lower bottom wall 28 of the liquid tank 1 1.

The liquid sucked out of the liquid tank 11 passes via the delivery line 52 to a first section 104a of the supply line 104 in which the control means 135 is arranged. The delivery line 52 and the supply line 104 are formed as plastic hoses. The control means 135 is described in detail in FIGS. 6 and 7. From the control means 135, the liquid passes through a second portion 104b of the supply line 104, as shown in Fig. 5, to the pump inlet port 1 18 of the pump 100. In Fig. 4, the ball 102 is shown positioned in the foreground of the pump 100. In FIG. 5, the ball 102 is shown positioned in the background of the pump 100. From the pump 100 lead two Pumpenauslassstutzen 122a, 122b out to supply the wiper 5 with liquid. At each Pumpenauslassstutzen 122 a, 122 b, a respective line end portion 151 a and 151 b is connected. The line end section 151 a leads to a Tragsdüse 152 a, which lies in Fig. 4 behind the L-shaped leg of the liquid tank 1 shown cut. The application nozzle 152a is fastened in an outlet opening 153a, as shown in FIG. 5 to the right of the control means 135 below the liquid tank 11, in a central plate 154 of the moisture transfer device 150. The line end section 151b leads to an application nozzle 152b, which can be seen in FIG. 4 behind the delivery line 52. The application nozzle 152b is attached analogously to the application nozzle 152a at an outlet opening 153b, as shown in FIG. 5 to the left of the control means 135 below the liquid tank 11, in a central plate 154 of the moisture transmission device 150. On the underside of the central plate 154 from FIG. 5, the wiping medium carrier 4 from FIG. 4 is fastened in the assembled state. The wiping means 5 is detachably attached to the wiping medium carrier 4. From the end openings of the application nozzles 152a and 152b, the liquid conveyed by the pump 100 from the liquid tank 11 passes via the outlet openings 153a, 153b in the central plate 154 through the wiping means carrier 4 to two spaced locations of the wiping means 5. By the spaced application of the liquid to two different locations on the wiper means 5 as uniform as possible liquid distribution in the wiper 5 is ensured.

Fig. 6 shows the arrangement of Fig. 5 in a plan view. The supply line 104 is hidden behind a guide channel 156 in the liquid tank 1 1 arranged. The guide channel 156 is C-shaped formed on the underside of the liquid tank 1 1 running. Below the two ends of the C-shaped guide channel 156 is one of the outlet openings 153a and 153b in the central plate 154 partially hidden recognizable. The application nozzles 152a and 152b are connected to the outlet openings 153a and 153b. The application nozzles 152a and 152b can be seen from below in plan view in FIG.

Fig. 7 shows the arrangement of Fig. 5 in a view from below. The application nozzles 152a and 152b are mounted in recesses in the central plate 154. From the application nozzle 152a shown on the left in FIG. 7, the line end section 151a leads to the pump outlet port 122a of the pump 100. From the application nozzle 152b shown on the right in FIG. 7, the line end section 151b leads to the pump outlet port 122b of the pump 100. Starting from FIG the pump 100 leads from the pump inlet port 1 18, the second portion 104 b of the supply line 104 into the guide channel 156 inside. In the The signaling channel 156 is, as indicated in Fig. 6, the control means 135 interposed. From the control means 135, the first section 104a of the supply line 104 then leads to the delivery line 52, which is connected to the liquid tank 11. For better illustration, the entire described fluid conduit is shown again in a side view in FIG.

In Fig. 9, the control means 135 is shown in a perspective view. The control means 135 is integrated in a hood 155 of the central plate 154. The hood has a portion of the suction channel 21 in which a vacuum is present during the work of suction with the floor nozzle. The control means is disposed between the first portion 104a and the second portion 104b of the lead 104. Between the line sections 104a and 104b, the control means 135 has a valve 136. The valve

136 consists of a valve housing 137 and a slider 138 movably guided therein. All individual parts of the control means 135 are combined in the housing box 140 and shown in detail in FIG.

In Fig. 10, the control means 135 of Fig. 9 is shown in a sectional view. The housing box 140 has a circular cylindrical side wall, to which in the position shown in Fig. 10, a downwardly opening can edge portion 145 connects. At the top, the housing box 140 has a closed roof dome 146, in the center of which the valve housing 137 adjoins upward. On the valve housing 137, two valve connection pieces 147a, 147b are integrally formed. The first portion 104a of the supply line 104 can be connected to the valve connecting piece 147a. The second portion 104b of the supply line 104 can be connected to the valve connecting piece 147b. The valve housing 137 itself is designed dome-shaped. Inside the valve housing 137, the slider 138 is arranged. The slider 138 has a finger-like shape adapted to the internal cavity of the valve housing 137 such that a fluid-tight but slidable mounting of the slider 138 in the valve housing

137 is guaranteed. In the closed position of the valve 136, the tip of the finger-shaped slider 138 rests in the arch 148 of the valve housing 137 and seals the two valve ports 147a and 147b so that no liquid from the first portion 104a of the conduit 104 into the second portion 104b the supply line 104 can get. The slider 138 is integrally formed on a control diaphragm 139. Slider 138 and control diaphragm 139 are made of an elastic plastic, in particular of an elastomer, silicone rubber or TPE. The control diaphragm 139 is substantially circular in shape and assumes the position shown in FIG. 10 in its relaxed position, in which the slide 138 is in a closed position of the valve 136 in which a liquid passage from the first portion 104a of the supply line 104 in the second portion 104 b of the supply line 104 is prevented. The control diaphragm 139 divides the housing box 140 into a first control central chamber 141 and a second control central chamber 142. The first control chamber 141 is shown in FIG. 10 below the control diaphragm 139. The second control chamber 142 is shown in FIG. 10 above the control diaphragm 139. The second control central chamber 142 is liquid-tight isolated and empty. The first control means chamber 141 has an opening 143, via which a connection to the suction channel 21 is provided. If a negative pressure now prevails in the suction channel 21, this negative pressure will continue via the opening 143 into the first control-medium chamber 141. The first control chamber 141 has no other openings, so that the negative pressure can not be lost. Due to the negative pressure in the first control means chamber 141, the control diaphragm 139 is now deflected down to counteract the negative pressure. With the deflection of the control diaphragm 139 downwards, the slider 138 integrally formed on the control diaphragm 139 is also moved downwards. In a lower position of the slide 138, the connection in the valve housing 137 is exposed and liquid can pass from the first portion 104a of the supply line 104 via the valve connection piece 147a into the second portion 104b of the supply line 104 via the valve connection piece 147b. A transport of liquid from the liquid tank 1 1 to the wiper 5 is now possible.

In the open position of the slider 138, the control diaphragm 139 is deflected maximum downward. In this deflection, the space of the second control central chamber 142 is extended, without a medium can flow. Consequently, a negative pressure is generated in the second control central chamber 142, which forces a return movement of the control diaphragm 139 as soon as there is no negative pressure in the suction channel 21 or in the first control central chamber 141. The control diaphragm 139 is due to the negative pressure in the second control medium chamber 142 up in moves its basic position and the integrally formed on the control diaphragm 139 slide 138 again takes up its supply line 104 closing position.

In the opening 143, a grid 144 is inserted. The grid 144 has sufficiently large passages, so that the negative pressure from the suction channel 21 can be carried away lossless in the first control means chamber 141. The grid 144 is rigidly held in the housing box 140. When there is a high negative pressure present in the first control means chamber 141, the control diaphragm 139 is deflected maximally downwards until it is present at the top of the grille 144. Thus, the grid 144 prevents deflection of the control diaphragm 139 beyond its maximum allowable deflection position.

In Fig. 1 1 is a view from below of the wiper means carrier 4 is shown. The wiping medium carrier 4 has a plate-shaped basic shape. The wiping means carrier 4 has a rectangular contour. The two application nozzles 152a and 152b are provided in a part of the plate-shaped wiping medium carrier 4 which is at the front in the sliding direction of the floor nozzle. In Fig.1 1, the application nozzles 152a and 152b are shown in an upper third of the surface of the wiper medium carrier 4. The two application nozzles 152a and 152b are arranged at a distance from each other, which also corresponds to their distances from the side edges of the wiper medium carrier 4 substantially.

FIG. 12 shows a view from below of the moisture distribution device 150. The moisture distribution device 150 has a cuboid shape and is adapted to the size of the wiper medium carrier 4. The moisture distribution device 150 is detachably attached to the mop carrier 4. The moisture distribution device 150 is formed as a profiled sponge. Via the application nozzles 152a and 152b shown in FIG. 11, the moisture distribution device 150 is saturated with liquid at two locations. Due to the spaced position of the two application nozzles 152a and 152b in a front region of the floor nozzle, the moisture distribution device 150 is uniformly supplied with liquid. Within the moisture distribution device 150, which is preferably designed as an open-pored sponge, the liquid can be distributed very uniformly over the entire rectangular area of the moisture distribution device 150. The wiping means 5, which is preferably formed as shown in Fig. 1, as a wipe, can flat on the rectangular surface the moisture distribution device 150 are placed so that it is saturated over the entire surface and evenly with liquid.

Claims

claims

1. floor nozzle for hard floors, which is designed to work sucking and wiping, characterized in that the floor nozzle has a liquid supply device (50) with a liquid tank (1 1) for a wiper means, for the promotion of liquid from the liquid tank (1 1) to the

Wiping means (5) comprises a arranged in the floor nozzle liquid line (52, 104, 151 a, 151 b).

2. Floor nozzle according to claim 1, characterized in that the liquid line (52, 104, 151 a, 151 b) for applying liquid to a surface moisture keitsübertragungseinrichtung (150) at least one application nozzle (152 a, 152 b).

3. Floor nozzle according to claim 2, characterized in that the at least one applicator nozzle (152a, 152b) is mounted in a position for applying the liquid on a front in the sliding direction half of the surface moisture transmission (150) in the floor nozzle.

4. Floor nozzle according to claim 3, characterized in that the at least one application nozzle (152a, 152b) is mounted in the front quarter of the planar moisture transmission device (150) in the floor nozzle.

5. floor nozzle according to claim 2 to 4, characterized in that two application nozzles (152a, 152b) are provided.

6. floor nozzle according to claim 5, characterized in that the two application nozzles (152a, 152b) at a distance between 30% and 50%, preferably from about 40% of the nozzle width apart and mirror-symmetrical to a running in the sliding direction center line on the floor nozzle are arranged.

7. floor nozzle according to claim 5 or 6, characterized in that the two application nozzles (152a, 152b) are each connected to a separate line end portion (151 a, 151 b) and both line end portion (151 a, 151 b) with a common pump ( 100) are connected.

8. floor nozzle according to claim 2 to 7, characterized in that the planar moisture transfer device (150) is made of an open-pore, sponge-like or capillary-containing material.

9. floor nozzle according to claim 2 to 8, characterized in that the wiper means (5) on the moisture transfer device (150) flat-fitting

Wipe is.

10. floor nozzle according to claim 9, characterized in that the wipe is releasably held on the moisture transfer device (150).