WO2008028761A1

WO2008028761A1 - Hard floor nozzle

Info

Publication number: WO2008028761A1
Application number: PCT/EP2007/058383
Authority: WO
Inventors: Marko Geis; Thomas GÖPPNER; Albert Kleinhenz; 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: DE202007018640U1

Abstract

The invention relates to a hard floor nozzle which is suitably designed for vacuum-cleaning and wiping. The aim of the invention is to provide an improved support for the wiper element (5). For this purpose, the floor nozzle comprises a holder for a wiper element (5) for holding the wiper element (5) on the underside of a wiper element support (4) which is connected to a moisture transfer device (150).

Description

Floor nozzle for hard floors

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

A suitable for the work sucking and wiping floor nozzle for hard floors is known for example from WO 02/085174 A1. The vacuum cleaner mouthpiece described has a plate with a bottom, which rests on a floor. The plate carries a wiper. The wiping means is arranged between two suction channels, which are connected to a suction pipe of a vacuum cleaner. Velcro fasteners are provided for fastening the wiper agent to the wiper agent carrier.

On this basis, the present invention has the object to provide a comparison with the prior art improved holder for the wiper.

This object is achieved by a floor nozzle for hard floors, which has holding means for a wiper means for holding the wiper on the underside of a wiper support, which is connected to a moisture transfer device.

Preferably, the holding means may comprise two spaced apart clamping holders which are designed to hold opposite ends of the wiping means. By holding the opposite ends of the wiper, the wiper is not only attached to the floor nozzle, but stretched like a sheet flat and wrinkle-free over the wiper means carrier. Due to the uniform and at least approximately wrinkle-free clamping a uniform surface contact of the wiper means is ensured to the moisture transfer device. The moisture transfer device serves to evenly distribute the liquid provided by the liquid supply device over a surface, so that a wiping agent is uniformly saturated with liquid. The wiper may be a wipe.

In one embodiment, at least one of the clamping holders has a movable clamping strip for fixing one end of the wiping means to a fixed support surface of the floor nozzle in a position of the base nozzle mounted on the underside of the wiper medium carrier Wipe. The clamping holders designed as clamping strips preferably fix the ends of the wiping cloth to the floor nozzle or the wiping means 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.

In a simple embodiment, the movable terminal block for clamping the wiper means on the floor nozzle having a manually operated lever. The lever is then directly mounted on the floor nozzle and connected via a coupling mechanism directly to the terminal strips.

In a preferred embodiment, the movable terminal block is formed by the suction channel mouthpiece. In this case, the floor nozzle for holding the wiper means between opposite suction channels, two movable Saugkanalmundstücke for clamping opposite ends of the wipe against the fixed nozzle body.

In this case, the terminal strips are connected to the Saugkanalmundstücken, which are mounted to open and close the terminal strips adjustable on the floor nozzle. Due to the adjustability of the Saugkanalmundstücke the Saugkanmundmundstücke are in the moment in which the wipe to be attached to the floor nozzle pivoted outwardly, so that even with a further suction operation pending on the Saugkanalmundstücken suction air flow does not interfere with the attachment of the wipe. At the same time the weggeschwenkten Saugkanalmundstücke form pincer-like gripping elements, which is able to grab a wiping flat on the floor at the opposite end and is able to introduce in Klemmfugen, which are arranged between the terminal strips and the wiper means carrier. For example, the wipe placed flat on the floor is automatically fixed to the floor nozzle by means of the terminal strips.

In one variant, at least one of the clamping holders is arranged between two opposing suction channels and has a pivotable wiper means flap for attaching one end of the wiping means in a position of the wiping means flap pivoted out of the wiping means plane and for clamping the wiping means the underside of the wiper agent carrier in a swung back in the wiping median position position of the mop flap. Thus, the wiper can be manually raised by a user.

In another variant of the invention, at least one of the clamping holders may have a pair of rollers rolling on one another, which is designed to hold one end of the wiping means in clamping fashion. In this case, one end of the wiper can be introduced and fixed in a typewriter analogously to the introduction of a paper. The clamping force is generated by the mutual pressure force of the two rollers of the roller pair. This allows a very firm and secure attachment of the wiper. In addition, a wrinkle-free fixation of the wiper agent is ensured by acting as a retraction roller pairs.

In a further variant of the invention, the holding means may have a removable from the floor nozzle drawer, in which a wiper is inserted in such a way that is held by clamping the drawer into the floor nozzle, the wiping means spanned on the underside of the moisture transfer device. A removable drawer has the advantage that the user does not have to bend down to the floor nozzle for the entire process of wiper attachment. He can remove the drawer from the floor nozzle and fix in a relaxed posture the wiper on the drawer. When fixing the drawer and a wrinkle-free fastening is ensured. Subsequently, the drawer can be inserted into the bottom nozzle in a simple manner, and the wiping agent is attached directly to the bottom nozzle in the correct position.

In an additional variant of the invention, the holding means may comprise two opposing rollers between which the moisture transfer device is arranged, wherein on each roller one end portion of a Wischmittelbandes is wound and hold both rollers by clamping in the opposite direction of rotation, the wiper means on the underside of the moisture transfer device. In the additional variant, preferably two opposing rollers are rotatably mounted in each case for unwinding an unused portion of the wiper medium band and for winding up a used portion of the wiper medium band in the same direction of rotation. This variant has the advantage that no mop must be replaced continuously. It is sufficient to use a complete magazine of a mop roll and then individual sections can be removed from the mop roll. The used sections are rewound onto a second roll so that a spent wiper section does not need to be replaced individually. Through this variant, the functional maintenance of the floor nozzle with low maintenance costs is guaranteed.

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 Figures 1 to 3. FIGS. 4 to 8 describe further variants of the first embodiment.

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 removed housing shell with terminal strips in a closed position.

Figure 3 is a perspective view from above of the floor nozzle of Figure 1 with removed housing shell with terminal strips in an open position.

Figure 4 is a perspective view from below of a first variant with pivotable mopping flaps;

Figure 5 is a perspective view from above of the pivotable wiping means flaps of the first variant of Fig. 4; Figure 6 is a schematic representation of a second variant with successive rolling roller pairs;

Figure 7 is a schematic representation of a third variant for a Wischmittel- band;

Figure 8 is a schematic representation of a fourth variant with a removable drawer for the wiper.

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 in the sliding direction of the floor nozzle front, shown in Fig. 1 left Saugkanalmundstück 2 and in the sliding direction of the floor nozzle behind, shown in Figure 1 right Saugkanalmundstück 3 are mounted on the floor nozzle. 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. The wipe 5 forms the wiper. In the illustrated, attached to the wiper support 4 position of the wipe 5, the front Saugkanalmundstück 2 and the rear Saugkanalmundstück 3 are in a closed position in which the wipe 5 is held flat against the underside of the wiper support medium 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 connected to a pump 100, not shown, which promotes liquid from the liquid tank 1 1 to the mop carrier 4. 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 formed directly on 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.

In Fig. 2, the floor nozzle of Fig. 1 is shown in a perspective view. The floor nozzle is shown with the housing shell 1 removed. At the front Saugka- nalmundstück 2 a first terminal block 200a is attached. At the rear Saugkanalmundstück 3, a second terminal block 200b is attached. Both terminal strips 200a and 200b are in a closed position, in which the opposite longitudinal edge portions 6 and 7 of the wipe 5 are clamped to the wiper means carrier 4. The clamping of the opposite longitudinal edge sections 6 and 7 takes place between the wiping medium carrier 4 and in each case one clamping strip 200a, 200b. The attached to the Saugkanalmundstücken 2 and 3 terminal strips 200a, 200b can be swung out with this, as indicated in Figure 1 by the arrow in an open position. The terminal strips 200a, 200b in the open position are explained in more detail with reference to FIG. For a pivotable mounting of the terminal strips 200a and 200b and the Saugkanal- mouthpieces 2 and 3, these holding arms 201 a and 201 b on. Each terminal strip 200a, 200b or each Saugkanalmundstück 2, 3 preferably has two holding arms 201 a, 201 b. Each holding arm 201 a, 201 b extends, starting from the Saugkanalmundstück 2, 3 in the region of a Haltearmansatzes 214 a, 214 b in a direction obliquely upward and then passes into a middle Haltearmabschnitt 215 a, 215 b, which is aligned in the closed position substantially horizontally. At its projecting Haltearmende 216 a, 216 b are each a guide pin 202 a, 202 b attached. Each guide pin 202a, 202b extends at a right angle to the longitudinal extent of the holding arms 201a, 201b and points inwards in the direction of an associated guide slot 203a, 203b. The guide slots 203a, 203b are arranged on a hood 155 of the central plate 154 and preferably formed integrally therewith. In the closed position shown in Fig. 2, the guide pins 202a, 202b are located at an inside upper end within the guide slot 203a, 203b. Consequently, the holding arms 201 a, 201 b can not only rotate about the axis of the guide pins 202 a, 202 b, but are longitudinally displaceably guided along a translatory path along the guide slot 203 a, 203 b. At a distance from the guide pins 202a, 202b, a pivot pin 217a, 217b is arranged obliquely below the guide pins 202a, 202b in FIG. Between the guide pins 202a, 202b and the pivot pins 217a, 217b there is a respective slide track 218a, 218b of an intermediate lever 204a, 204b. The slideways 218a, 218b are cam-shaped to the intermediate lever 204a, 204b formed and have a T-shaped cross section, by means of which the holding arms 201 a, 201 b are guided on both sides, so that they can perform a reciprocating motion through which the Clamping strips 200a, 200b and the Saugkanalmundstücke 2, 3 between the closed position of Fig. 2 and the open position of Fig. 3 can be moved back and forth. To carry out its own pivoting movement, the intermediate levers 204a, 204b each have a bearing eye 219a, 219b. Each bearing eye 219a, 219b is mounted on a hinge pin 220a, 220b, so that the intermediate levers 204a, 204b are rotatably mounted about an axis of the hinge pins 220a, 220b. The hinge pins 220a, 220b are provided on the central plate 154 and preferably formed directly on it. Each two intermediate levers 204a, 204b are pivotally mounted mirror-symmetrically to each other and thereby perform a scissor-like synchronous movement. This scissor-type synchronous movement is triggered by a dog 205 fixed to a pressure plate 221 which reciprocates from an upper position as shown in FIG. 2 to a lower position as shown in FIG. 3 in a vertical direction is mobile. To the pressure plate 221, a lower movable joint half 18b of the joint cup 18 is formed. The Gelenkspfannenhälfte 18b carries the joint ball 19 of the connection joint 16. Due to the coupling elements just described by pressing the connection joint 16 at the suction channel mouthpieces 2 and 3 fixed terminal strips 200a, 200b are pivoted from a closed position to an open position. The coupling elements thus consist in the embodiment shown of the joint ball 19 of the connection joint 16, the pressure plate 221 with the lower movable joint half 18b and the driver 205, and the intermediate levers 204a, 204b and the holding arms 201 a, 201 b. Thus, the terminal strips 200a, 200b are held in the closed position under spring bias, a torsion spring 206 is inserted between the two each mirror-symmetrically mounted to each other pivotally mounted intermediate lever 204a, 204b. The torsion spring 206 has a helical torsion spring coil 222 to which two wire legs 223a, 223b connect, at the ends of which is a perpendicular bent spring hooks 224a, 224b. Each spring hook 224a, 224b engages a hook eye 225a, 225b at an upper end of each intermediate lever 204a, 204b. By means of the torsion spring 206, the hook eyes 225a, 225b spread apart, so that the intermediate lever 204a, 204b are forced into their scissor-like closed position. At the opposite ends of the intermediate levers 204a, 204b, the end-side forceps syringes 226a, 226b bear against a stop cam 227 in the closed position. The stop cam 227 is formed directly on the central plate 154.

In Fig. 3, the floor nozzle of Fig. 1 is shown in a perspective view. The floor nozzle is shown with the housing shell 1 removed. Both terminal strips 200a and 200b are in an open position, in which the opposite longitudinal edge portions 6 and 7 of the wiping means 5 are exposed and the wiping agent can be detached from the wiping means carrier 4. The terminal strips 200a and 200b, which are in the open position, are swung out via the suction channel mouthpieces 2 and 3 which are pivoted upwards. The holding arms 201 a, 201 b are rotated in a clockwise direction relative to the position shown in FIG. 2 and are positioned offset from the position shown in FIG. 2 downwardly and outwardly. This offset position is achieved via the translational movement which is guided by the guide slot 203a, 203b. In Fig. 3 it can be seen how the guide pins 202a, 202b of the support arms 201 a, 201 b in the guide slot 203 a, 203 b is offset obliquely downward and a portion of the channel 228 of the guide slot 203 a, 203 b releases. The pivoting of the holding arms 201 a, 201 b is triggered by the scissor-like opened intermediate lever 204a, 204b, which are pivoted by means of their bearing eye 219a, 219b to the hinge pin 220a, 220b of the central plate 154 outwardly pivoted. The slide tracks 218a, 218b press like the support arms 201 a, 201 b at their pivot pins 217 a, 217 b apart. The scissor-type intermediate levers 204a, 204b are opened by the downwardly driven driver 205. In Fig. 3 it can be seen that the driver 205 is mounted in a driver guide 229, which allows a vertical movement of the driver 205. The driver guide 229 is inserted in the hood 155 of the central plate 154 as a vertical slot. Through the vertical slot of the driver guide 229 protrudes a connecting member 230 which connects the driver 205 with the lower movable joint half 18 b of the joint cup 18. It can be seen that the joint ball 19 of the connection joint 16 with respect to the closed position shown in FIG. 2 in the open position shown in FIG. 3 is in a lower position than in FIG. By comparing FIGS. 2 and 3, it can be seen that, by pressing down the connection joint 16, the terminal strips 200a and 200b are pivoted into the open position, in which they release the wiping means 5. The torsion spring coil 222 of the torsion spring 206 supports on the top of the stop cam 227.

FIG. 4 shows a perspective view from below of a first variant with pivotable flaps. The two Saugkanalmundstücke 2 and 3 extend at the longitudinal edges of the floor nozzle and limit the wiper means carrier 4 from two opposite sides. The wiping medium carrier 4 has a base carrier 66. The base support 66 is connected to the connection joint 16 shown in FIG. The base 66 has a substantially rectangular to square basic shape. At two opposite ends of the base support 66, a hinge stub 67a and 67b is mounted in each case. The hinge stubs 67a and 67b are preferably formed integrally with the base support 66. At each hinge stub 67a, 67b a mop flap 68a, 68b is pivotally articulated. For this purpose, each wiper means flap 68a, 68b has two hinge legs 69a, 69b or 70a, 70b. Two joint legs 69a and 69b engage around a hinge stub 67a, 67b from opposite sides. The two joint legs 69a and 69b, together with the hinge stub 67a, 67b, form a hinge joint which can be pivoted out of the wiper medium carrier plane. The wiping flaps 68a, 68b extend laterally outwardly from the hinge legs 69a, 69b and 70a, 70b, respectively, to the ends of the suction channel mouthpieces 2 and 3. The free ends of the hinge legs 69a, 69b or 70a, 70b are provided with bevels 71a , 71 b, so that a wiper can be pushed onto the two free ends of the wiper means 68a, 68b in a simple manner. In a middle area of the On the bottom surfaces of the wiping means flaps 68a, 68b, three outlet openings 153a, 153b of application nozzles 152a, 152b of a moisture transmission device 150 are respectively introduced. The wiping means 5 is releasably secured in a, as shown in Fig. 4, in the wiping means plane pivoted back position of the mopping flaps on the wiper means carrier 4. From the end openings of the application nozzles 152a and 152b, the liquid delivered by a pump 100 from a liquid tank 11 passes via the outlet openings 153a, 153b in the central plate 154 of the base carrier 66 of the wiper medium carrier 4 through the wiping medium carrier 4 to respectively three spaced locations of the wiping means 5 , As a result of the spaced application of the liquid to various locations on the wiping means 5, the most uniform possible liquid distribution in the wiping means 5 is ensured.

5, the pivotable wiping flaps 68a, 68b of the first variant of FIG. 4 are shown in a pivoted out of the wiping median position. In this pivoted-out position of the wiping means flaps 68a, 68b, the wiping means 5 can be clamped onto the underside of the wiping medium carrier. For this purpose, a non-illustrated wiper 5 has two opposite pockets, the engagement openings are arranged facing each other. In the pivoted-out position shown in FIG. 5, the free ends 72a, 72b of the wiping means flaps 68a, 68b are spaced a lesser distance apart than in the retracted position of FIG. 4. At this lesser distance, the free ends 72a , 72b of the mopping flaps 68a, 68b engage in the engagement openings of the opposite pockets of the wiper 5. The wiping means flaps 68a, 68b are then folded back into the position according to FIG. 4 and the wiping means 5 is held taut on the wiping means carrier 4.

FIG. 6 shows a second variant with roller pairs 73 and 74 rolling on each other. Depending on a pair of rollers 73, 74 consists of two parallel aligned rollers 73a, 73b and 74a, 74b, which are arranged at a distance of their same diameter from each other, so that they can roll on each other. The surface of the cylindrical shell of the rollers 73a, 73b and 74a, 74b may be formed rubber-elastic. The two rollers 73a, 73b and 74a, 74b of a pair of rollers 73, 74 are driven in opposite directions to each other. For a clamping attachment of one end of the wiper 5, the end of the wiper 5 between the two counter-rotating Rollers 73a, 73b and 74a, 74b introduced. As a result of the successive rotation of the pair of rollers 73 and 74, the wiping means 5 is drawn into a gap 75a, 75b between the rollers 73a, 73b or 74a, 74b of a pair of rollers 73 and 74 and held. In the same way, a second opposite end of the wiper means 5 is drawn into one of the gaps 75a, 75b between the rollers 73a, 73b and 74a, 74b of a pair of rollers 73 and 74 and held. Between the two gaps 75a and 75b, the wiping means 5 is held taut over the wiping means carrier 4, so that the wiping means 5 can be supplied with liquid via the moisture transfer device 150.

In Fig. 7, a third variant for a wiper belt 76 is shown. In this variant, a long Wischmittelband 76 is used instead of a single Wischmittelabschnitts. The wiping means 76 consists of a plurality of endless lined Wischmittelabschnitte. The unused Wischmittelband 76 is initially completely wound on a first roller 77 and thus forms a wiper means portion dispenser. The free end of the wiper belt 76 is fastened to the second roller 78. The two rollers 77 and 78 are held clamped against each other in the opposite direction of rotation, so that a wiping medium section of the wiper belt 76 between the roller 77 and the roller 78 is held taut over the wiping means carrier 4. If the wiping agent portion is dirty, this soiled portion of the Wischmittelbandes 76 is wound on the roller 78 and a new clean mopping agent portion of the roller 77 unwound and stretched between the roller 77 and the roller 78 on the wiper carrier 4, so that the wiper means 5 on the Moisture transfer device 150 can be supplied with liquid.

FIG. 8 shows a fourth variant with a removable drawer 79 for the wiping means 5. The drawer 79 is drawer-like guided on the wiper means carrier 4 of the floor nozzle. For this purpose, the floor nozzle has two opposite rail guides 80a and 80b engage in the longitudinal edges of the drawer 79. Due to the rail guides 80a and 80b, the drawer 79 can be pushed out of the floor nozzle and back into it. In a pulled out of the floor nozzle position of the drawer 79, a wiper 5 can be placed on the bottom surface of the drawer 79 and the edge portions of the wiper means 5 placed over the side edges of the drawer 79 and fixed. The drawer 79 is then together with the launched wiper 5 is pushed back into the floor nozzle until the drawer 79 is completely absorbed in the floor nozzle. In the retracted position of the drawer, the wiping means 5 abuts against the wiping means carrier 4 so that the wiping means 5 can be supplied with liquid via the moisture transfer means 150.

Claims

claims

1. floor nozzle for hard floors, which is designed to work sucking and wiping, characterized in that the floor nozzle holding means for a wiper means (5) for holding the wiper means (5) on the underside of a wiper medium carrier (4), with a Moisture transfer device (150) is connected.

2. floor nozzle according to claim 1, characterized in that the holding means comprises two spaced-apart clamping holder, which are adapted to hold opposite edge portions (6,7) of the wiper means (5).

3. floor nozzle according to claim 2, characterized in that at least one of the clamping holder has a movable clamping strip (200a, 200b), for fixing an edge portion (6,7) of the wiper means (5) on a fixed support surface of the floor nozzle in a on the bottom of the wiper support (4) wound up position of the wipe (5).

4. Floor nozzle according to claim 3, characterized in that the movable clamping strip (200a, 200b) for clamping the wiper means (5) on the bottom nozzle has a manually operable lever.

5. Floor nozzle according to claim 3 or 4, characterized in that the movable clamping strip (200a, 200b) through the Saugkanalmundstück (2,3) is formed.

6. floor nozzle according to claim 5, characterized in that the floor nozzle for holding the wiper means (5) between opposing suction channels two movable suction channel mouthpieces (2,3) for clamping opposite

Having edge portions (6,7) of the wiper means (5) against the fixed nozzle body.

7. Floor nozzle according to claim 2, characterized in that at least one of

Clamping holder is arranged between two opposing suction channels and has a pivotable wiper means flap (68a, 68b) for attaching an edge section (6, 7) of the wiper means (5) in a position of the wiping agent flap (68a, 68b) pivoted out of the wiping means plane and for clamping NEN of the wiper means (5) on the underside of the wiper medium carrier (4) in a swung back into the wiping means position of the wiper means flap (68 a, 68 b).

8. floor nozzle according to claim 2, characterized in that at least one of the clamping holder has a successive rolling roller pair (73, 74), which are designed for clamping holding an edge portion (6,7) of the wiper means (5).

9. Floor nozzle according to claim 1, characterized in that the holding means comprises a removable from the floor nozzle drawer (79) into which a wiper means (5) can be inserted so that by inserting the drawer (79) in the bottom nozzle, the wiper (5) is held clamped on the underside of the moisture transfer device (150).

10. floor nozzle according to claim 1, characterized in that the holding means comprises two opposite rollers (77, 78) between which the moisture transfer device (150) is arranged and on each roller (77, 78) has an end portion of a Wischmittelbandes (76 ) is wound and both rollers (77, 78) by clamping in the opposite direction of rotation, a portion of the wiper medium belt (76) as a wiper means (5) on the underside of the Feuchtigkeitsübertragungs- device (150) is clamped.

1 1. Floor nozzle according to claim 10, characterized in that the two opposite rollers (77, 78) for unwinding an unused portion of the

Wischmittelbandes (76) and for winding a used portion of the Wischmittelbandes (76) are rotatably mounted in the same direction of rotation.