EP2014212A1 - Combination of a vacuum cleaner nozzle with a wipe, and wipe and method for wet cleaning floors - Google Patents

Abstract

Combination of a dust suction nozzle and a cloth where the nozzle has a suction mouth, and the cloth is held at the nozzle under pressure. To prevent the suction of liquids the combination is provided with a sealing pad (22). The wiping active part of the sealing pad can be a fleece, e.g. a polypropylene or polyethylene fleece or a microfiber fleece. Independent claims are included for: (1) a cloth for a dust suction nozzle bonded to a sealing pad (2) a method for suction removal of moisture from a floor using a suction nozzle with a sealing pad.

Description

The invention first relates to a combination of a vacuum cleaner nozzle with a wipe, wherein the vacuum cleaner nozzle has a suction mouth and the wipe is preferably to be supported by means of negative pressure at the nozzle.

Vacuum cleaner nozzles are known. These find particular application as attachments for household vacuum cleaners for suction treatment of floors, so on of carpet or hard floors. In addition, vacuum cleaner nozzles for overground work are also known. These are usually connected via a suction hose or the like with the vacuum cleaner, so as to suck off higher objects, such as shelves or the like. In the area of the suction mouth of the vacuum cleaner nozzle, a negative pressure is reached during operation, which makes it possible to hold a wipe. Accordingly, the so-made vacuum cleaner nozzle for wiping particular hard surfaces, such as continue to be used for example wood or tile floors.

In view of the above-described prior art, a technical problem of the invention is seen to improve a combination of the type in question.

This problem is solved first and foremost by the subject matter of claim 1, wherein it is pointed out that the wipe has a sealing layer to prevent the absorption of liquids. According to this embodiment, a wet wiping of surfaces is possible by means of a vacuum cleaner nozzle. The wet cleaning achieves an improved cleaning result. In order to avoid that the cleaning liquid serving over the preferably used for the adhesion of the wipe Suction air flow into the vacuum cleaner nozzle and beyond this in the suction air flow applying vacuum cleaner, the wiper is provided with a sealing layer. This acts in the manner of a separating layer.

Furthermore, features are described which preferably have in combination with the features of claim 1 meaning, but in principle may have meaning with only some features of claim 1 or alone.

Thus, it is provided in a development of the subject invention that the vacuum cleaner nozzle has two Saugkanalzweige upstream of the wipe, one of which serves to generate a holding negative pressure for the wipe and one for immediate Bodenabsaugung. According to this embodiment, the suction air stream applied during operation is divided on the nozzle side, on the one hand for holding the wipe and on the other hand for immediate Bodenabsaugung, further in the arrangement of a directed towards the bottom opening of the support Saugkanalzweiges preferably completely covering wipe the associated cloth holding chamber of the support Saugkanalzweiges at least almost forms a vacuum-only, enclosed space. Due to the relatively high flow rates in the suction mode, the dynamic pressure in the entire system increases; in return, the static pressure drops. This lower static pressure causes a suction on the wall in the flow channel and in the present case corresponding to the cloth holding chamber closed during wipe adhesion. This is due to the lower static pressure compared to the static pressure in the ambient air. There is a negative pressure in the cloth holder chamber for the preferred negative pressure adhesion of the wipe. The proposed separation of the Saugkanalzweige is given a uniform negative pressure in each area of the cloth holding chamber. Accordingly, an equal pressure acts on the entire vacuum-loaded surface of the wipe. In addition, through the separate Saugkanalzweige achieved a favorable suction in Absaug-channel branch. The suction power is not reduced by sucking a wipe to the adhesion of the same at the nozzle.

The Saugkanalzweige run in a preferred embodiment, at least partially, viewed in the vertical direction, one above the other, so that the Saugkanalzweige lie in a projection on the nozzle bottom or in the operating state in a projection on the nursing floor at least partially in coverage. In a preferred arrangement in this case, the support Saugkanalzweig runs below the suction channel branch, wherein in a further embodiment of the support Saugkanalzweig at the same time immediately forming the cloth holding chamber, while the suction channel branch, for example, pipe section formed on the support suction duct branch and the end one on preferably over the entire, transversely to the usual direction of travel viewed width of the nozzle extending nozzle-like suction mouth ausformt. This, the suction duct branch associated suction mouth is preferably arranged with respect to the usual direction of travel of the nozzle in the forehead region thereof to absorb over this when moving the nozzle in the usual direction of travel forward before being exposed to the soil by the wiper coarser dirt particles.

Thus, it is further provided that the Saugkanalzweige at least partially in the horizontal direction next to each other, so on in the horizontal direction with respect to the usual direction of travel. Thus, for example, one above the nozzle bottom, further with a small distance to the nozzle plate horizontally aligned plane intersects both the cloth holding chamber of the support Saugkanalzweiges and in the usual direction before arranged suction mouth of the suction channel branch.

The wipe area is further preferably separated from the Bodenabsaugbereich in the horizontal direction by a trained for resting on the bottom sealing lip. This extends in a preferred embodiment transversely to the usual direction of travel of the nozzle, further over the transverse to the usual direction of travel considered total width of the nozzle. According to this arrangement, the preferably moisture-containing wipe is first protected from drying out by the suction air stream sucked in via the bottom suction region. Due to the arrangement of the sealing lip, the air intake is at least limited to the nozzle area left in the usual direction of travel in front of the sealing lip, more preferably such a sealing lip being provided laterally of the floor suction area. Furthermore, the sealing lip also serves as a constructive aid when driving over thresholds or other flat obstacles. Moves the nozzle in the usual direction of travel to the front, that is, the floor to be cared first with the Bodenabsaugbereich running over, so sets the sealing lip with its free end over the associated edge of the following in the direction of wiping or alternatively covers at least one optionally between wiper and nozzle bottom settling gap. Consequently, a tearing or peeling off the wipe when driving over thresholds and other flat obstacles is avoided. The lip lifts figuratively the wipe over the obstacle.

In a further embodiment, the wipe, preferably in addition to the support by negative pressure, supported by mechanical means to the suction nozzle. This mechanical holder is used in particular to support the vacuum holder of the wipe. Thus, by the arrangement of mechanical holding means, the adhesion of the wipe even when interrupting the suction air flow, for example, after interrupting the suction air flow by turning off the device further given to the nozzle. The mechanical means consist in one embodiment of a hook and loop fastener, wherein a Velcro part the wiper and the corresponding other Velcro part is assigned to the nozzle bottom or the wiper associated holding element. In the embodiment of the wipe of a particular textile material, for example, from a nonwoven material, this material can form the loop-like velcro part, while the device side a barb-like, corresponding Velcro part is provided. Further alternatively, the mechanical means locking means, so on, for example, in the way that the device side optionally resiliently formed locking pins are formed, which cooperate with corresponding detent openings in the wipe. An amplification of the latching opening edges for secure latching mounting in cooperation with the latching pin is achieved, for example, by the sealing layer integrated in the wiping cloth.

In order to increase the negative pressure in the holding suction channel, further in the cloth holding chamber associated with the wipe, it is provided in a development of the subject invention that the holding suction channel has a flow channel taper upstream of the wipe. As a result of this flow channel taper, an increase in the flow velocity is achieved in this region, which leads to an increase in the negative pressure in the cross-sectional widened region of the cloth holding chamber. The flow channel taper acts in the manner of a Venturi nozzle. In a further preferred embodiment, the flow channel taper is formed in the region of the branch of the two flow channel branches; however, alternatively, it may be formed upstream of the wipe before the branch.

In order to prevent ingress of dirt particles transported via the suction channel branch into the holding flow channel branch, it is further provided that the latter is separate from the suction channel, more particularly from the suction branch channel, by means of a filter-like separating element. The filter-like release agent is preferably a filter element in the form of a, filter properties having paper or nonwoven layer. Alternatively, the release agent may also be formed by a close-meshed grid. In a further embodiment, the filter-like separating means is arranged interchangeably preferably in the region of the branch of the two flow channel branches.

Particularly advantageous is an embodiment in which with respect to a conventional direction of travel of the suction nozzle in front of and behind the wipe an opening of the suction channel branch is formed. Accordingly, there is an immediate soil suction in the usual direction of travel both before and after contacting the soil to be maintained by the wipe. This proves in a conventional handling of the nozzle advantageous because in this the nozzle is moved back and forth on the connected vacuum cleaner in a conventional manner and thus always a Absaugkanalzweig is arranged in the direction of travel before the wipe for suction of the soil. In this connection, it proves to be further advantageous if the suction channel branch is subdivided into a rear-suction channel branch and a front-suction channel branch.

In a further preferred arrangement of a sealing lip for the separation of the wipe area to Bodenabsaugbereich proves to be in connection with the sub-branching of the suction channel branch further advantageous if both the mouth of the front Bodenabsaugbereiches and the mouth of the rear Bodenabsaugbereiches in the horizontal direction by an edition the bottom formed sealing lip to the wipe area are separated. Correspondingly, each wiper edge bordering in the respective direction of travel is assigned a sealing lip which shields the bottom suction region upstream of the wiping direction from the wipe. This also makes it easier to drive over flat obstacles, such as thresholds in both traversing directions. The sealing lips effectively prevent peeling or peeling the wipe from the nozzle bottom. That's how it is provided that the sealing lip is formed umschlagbar by the movement, wherein in one direction of the envelope section of a sealing lip, the associated suction mouth of the Bodenabsaugbereiches substantially closes, while in the same direction of travel, the other, the further Bodenabsaugbereich associated sealing lip acts only separating the wiper. Thus, for example, when moving the nozzle in the usual direction, ie in a conventional forward drive of the nipple lying to the wiper sealing lip of the front suction to the wipe and covers this edge edge side, which flat obstacles, such as thresholds can be easily run over. The rear sealing lip lying in the direction of travel for the wiping cloth works automatically via the relative displacement to the floor to be maintained in the direction of the associated suction mouth of the floor suction area and closes it substantially completely, whereby in the selected direction of travel the entire suction force is directed to the front floor suction. During a backward displacement of the nozzle, the states of the sealing lips change, so that thereafter the total suction force is directed towards the rear suction relative to the appliance floor plan.

To ensure that when lifting the suction nozzle from the floor to be cleaned, the optionally wet and thus heavy wipe is still held on the nozzle, a negative pressure reinforcement in the support Saugkanalzweig is provided, which is preferably achieved by reducing the cross section of the suction of the Bodenabsaugbereiches. Thus, the Bodenabsaugbereich can be completely closed or reduced in cross-section as soon as the suction nozzle is raised. The closing or reducing the cross section of the suction orifice can be controlled by mechanical elements. Thus, it is provided in this regard that the lifting of the suction nozzle is determined by a, a ground contact detecting button. In the usual floor cleaning operation, the button detects the floor to be cleaned. The suction mouth is completely open and the vacuum acting on the wipe selected sufficiently large. Missing the button touch the ground, so mechanically, but possibly also electrically by evaluating a probe signal, the Saugmundquerschnitt reduced and thus increases the negative pressure in the cloth holder chamber. Preferably, in the course of lifting the suction nozzle from the bottom of the suction channel closed, this on mechanical means cooperating with the button means, such as hinged flaps or the like.

In a further development of the subject invention, it is provided that the vacuum cleaner nozzle is structured in the sense of one or more leading to the suction mouth valleys and that, a valley at least partially open holding, nonetheless air-permeable structural part is provided for the arrangement between the wipe and the nozzle. The structured valleys extend in this case, for example, transversely to a conventional travel or movement direction of the vacuum cleaner nozzle, but also optionally in the direction of travel or at an acute angle thereto. For example, starting from the suction mouth, a plurality of such structured valleys can reach up to one end face of the vacuum cleaner nozzle. About these valleys, together with the connected suction mouth in the usual way allows suction processing of a floor. During the wiping operation, at least one valley is provided with a structural part which keeps the valley at least partially open towards the processing surface. The structural part accordingly provides a support surface for the over the valley stretched wipe. Due to the partially open and correspondingly air-permeable structure, the pressure-related adhesion of the wipe is still achieved. Preferably, all structured valleys of the vacuum cleaner nozzle are provided with such a structural part in the wiping operation. In an embodiment with separate holding and suction duct branches, the structural part in a preferred embodiment covers the entire, the bottom facing suction opening of the support channel branch.

In a preferred embodiment, the structural part is a plastic part which can be inserted into the nozzle from below, so on a plastic part which preferably covers all structured valleys and furthermore more preferably the suction mouth, this further with partial opening of the valleys and / or the suction mouth in the direction on the working surface. The structural part can accordingly be a plastic injection-molded part which can be held on the vacuum cleaner nozzle on the underside by clamping or latching support. Furthermore, the structural part may also be formed, for example, in one piece with an insert part which can be plugged into the vacuum cleaner nozzle, which insert part forms the suction mouth and the valleys. The arrangement of the structural part is further preferably selected so that in the inserted state of this with the structured valleys or the suction mouth of the support channel portion of the vacuum cleaner nozzle adjacent bottom portions of the nozzle span an at least approximately common plane. Alternatively, the structural part may also be a fundamental part of the vacuum cleaner nozzle, such as further triggerable by a switch or button movement. For example, if required, the structural part can be retracted by lowering it into the structured valleys and, if necessary, into the suction mouth via foot actuation of a switch. Furthermore, in principle, wiping edges defined by the structural part can also be formed. For partial opening of the structural part of this is provided with suction openings. These may be slot-shaped or borehole-like and are selected in their free layout and in their number so that the wiper to be assigned is certainly also vacuum-protected in the wiping operation.

The wipe is held in a preferred embodiment of the article directly to the structural part. Alternatively, it is provided that an intermediate layer is arranged between the structural part and the wipe. This liner can be a coating, for example in the form of a non-slip Material or in the form of a layer of such a material, which leads to increased friction to better adhesion of the wipe. As a result of this refinement, the wiping cloth better holds the position under the vacuum cleaner nozzle during tillage. Thus, it is provided in a development that the intermediate layer consists of an embossed foam.

This also serves as a positioning aid in this case. In addition, the wipe adhesion is also increased. For cushioning, for example, on uneven ground is further preferred that the intermediate layer is set elastically, so on, for example, by forming the intermediate layer of a foam material. This elastically adjusted intermediate layer compensates for unevenness in the floor (for example, tile joints), so that the entire surface of the wipe is at least approximately reached on the floor to be cleaned. Further alternatively, the intermediate layer is in any case facing the wipe made of silicone, further comprising a silicone coating or a similar non-slip material, which coating is applied to the structural part.

A further improvement in the adhesion of the wipe in the operation of the vacuum cleaner nozzle is achieved by an airtight design of the sealing layer. The sealing layer extends in one embodiment of the subject invention over the entire surface of the wipe. Alternatively, it is further proposed in this regard that the sealing layer, forming sealing layer areas is formed only partially in the wipe. The sealing layer areas are in this case in particular associated with the areas of the structural part which apply negative pressure, more particularly associated with the valleys or the suction mouth of the vacuum cleaner nozzle, in order thus to achieve a secure hold of the wiping cloth by applying the vacuum.

Particularly advantageous is an embodiment in which the wipe has a contour that corresponds to the outline contour of the suction nozzle or at least largely corresponds. Thus, this creates the largest possible wiping surface loaded by the vacuum cleaner nozzle. Due to the fact that the wipe is held solely by negative pressure at the nozzle, oversizes, for example, for fixing the wipe through terminals or the like can be dispensed with. There is accordingly a wipe before with a wiping surface, which is optimally used over the entire area.

The wipe can be a dry cloth in the simplest embodiment. In this case, the wet processing liquid of the floor is applied directly to the floor and distributed over the nozzle provided with the wipe. In a development of the subject invention, the wipe is a wet wipe, which is provided with moisture and optionally with cleaning agents. Also, in an alternative embodiment, the wipe may be provided with sealants or the like. Moisture is continuously transferred to the hard floor to be treated via the wet wipe. The sealing layer provided in the wipe prevents the dry suction of the moisture absorbed in the wipe.

Another advantageous effect is achieved in that the suction nozzle has suction openings in the front area when the structural part and the wiper are in place. These front suction openings are kept free of the structural part, further preferably extend above a Wischtuchebene, so that in the course of wiping by means of the vacuum cleaner coarser dirt particles that are located in front of the nozzle, can be absorbed before they get into the wipe. This results in an increased service life for the wipe. The latter is not polluted by coarse particles or even damaged. Alternatively or in combination with this, the suction openings can also be provided laterally or in the rear device area.

In order to further increase, in particular, the negative pressure in the area of the possible suction, it is provided in a development that the suction openings are assigned a sealing lip. This sealing lip consists for example of a soft plastic or rubber material. According to this embodiment, an increased negative pressure effect on the wipe is achievable, whereby the adhesion of the wipe to the structural part is increased and further the suction force is increased via the suction openings.

The wipe can be constructed in multiple layers, for example, with a wiper position and a disposed above, firmly connected to the wiper position sealing layer. This sealing layer consists in a development of the subject invention of a film, further in particular of a plastic film, which is according to water and preferably also airtight. The wiping active position of the wipe is in a preferred embodiment, a nonwoven, such as a PP or PE nonwoven, in addition, where appropriate, even with possible multiple use of the wipe a microfiber fleece.

The held wipe extends substantially planar, level parallel to the floor to be cared for. Optionally, in particular in the case of a corresponding structural part, wiping edges can form in the wipe, which increase the abrasive action of the wipe on the floor.

The proposed solution, a suction / wiper device is provided in the form of a vacuum cleaner nozzle, which in particular allows hygienic placement of the vacuum cleaner nozzle with a wipe and beyond a hygienic disposal of the wipe. The user needs to equip the vacuum cleaner nozzle with a wipe the latter Do not touch. Rather, it is sufficient to position the vacuum cleaner nozzle, equipped with the structural part on the wipe preferably equal to the contour and thereafter to turn on the vacuum cleaner. The beginning of this suction air flow leads to the negative pressure adhesion of the wipe. When you switch off the vacuum cleaner, the wipe drops off, so on, for example, directly into a disposal container serving.

In a further development, a structuring of the cover layer of the wipe can be provided for optimum positioning of the wipe on the nozzle, for example in the manner of a positive structuring, which corresponds with an adapted negative structuring on the underside of the nozzle. This ensures an accurate, congruent and against slipping in the course of handling secure fit of the wipe under the nozzle. This structure is then provided on the wipe only on one side. The wipe-active situation remains unaffected.

It is also provided that the wipe is provided with a fixing portion at least in a partial region of at least one peripheral edge, whereby an improved hold of the wipe is achieved on the structural part. Advantageously, the fixing portion is designed for fixing by suction. Thus, in an exemplary embodiment, provision is made for a front and / or rear section of the wipe, which is considered in the usual direction of displacement of the nozzle, to form a fastening section, which is correspondingly sucked in or drawn in in the front or rear region of the suction nozzle or of the structural part. The wiping cloth thus held is, according to this embodiment, invariably positioned with respect to the position under the structural part during operation.

The fixing portion is formed in one embodiment of the same material with the wipe, this further, where appropriate, the improved suction having serving sealing layer. Furthermore, in this respect, the fixing section may be material-uniform, but its structure may be changed. Thus, furthermore, the fixing section can have a higher density compared to the wiping active region of the wipe, and can optionally also be provided with a plastic coating. This results in a hard or plate-like marginal edge for forming the fixing section, wherein further in this context, alternatively, the possibility exists to form the fixing portion of a hard plastic, further, for example in the form of a molded hard plastic edge. With this hard or plate-like edge, the front and / or back side edge of the nozzle or the structural part is encompassed, wherein further this encompassing is realized by the negative pressure in the region of the suction. In addition, according to this embodiment, the front-side suction of the nozzle to be directed to the floor to be cleaned, including further in one embodiment, the fixing section has openings, which form openings directed to the bottom suction openings.

The fixing sections extend with appropriate design of the structural part and the front and / or back Randansaugung at least approximately planar surface to the wiping active portion of the wipe. In the case of enclosing the structural part edges, the fixing portion of the held wipe is displaced in an angled from the planar extension of the wiping position plane, such as an angle up to 90 °.

In addition, the invention relates to a wiper for suction on a vacuum cleaner nozzle. In order to design such a wiper improved, a sealing layer is provided. This sealing layer prevents assignment of the wipe to the vacuum cleaner nozzle a suction of liquids through the wipe. Accordingly, the so-made wipe can also for Moist cleaning be used by means of the vacuum cleaner nozzle, wherein the holder of the wiper is achieved at the vacuum cleaner nozzle solely by constructed in vacuum cleaner vacuum.

Furthermore, features are described which preferably have meaning in combination with the features of claim 47, but in principle may also have significance with only some features of claim 47 or alone.

A further improvement in the adhesion of the wipe in the operation of the vacuum cleaner nozzle is achieved by an airtight design of the sealing layer.

In a further embodiment, the wipe on means for preferably complementary support by negative pressure at the suction nozzle. These preferred mechanical means are used in particular to support the vacuum holder of the wipe. Thus, the adhesion of the wipe is given by the arrangement of mechanical holding means even when the suction air flow, for example, after interrupting the suction air flow by turning off the device on the nozzle. The mechanical means consist in one embodiment of a hook-and-loop fastener, wherein a hook-and-loop fastener part is assigned to the wipe and the corresponding other hook-and-loop fastener part is assigned to the nozzle bottom or the holding element associated with the wipe. In the embodiment of the wipe of a particular textile material, further example of a nonwoven material, this material can even form the loop-like Velcro part. Further alternatively, the mechanical means locking means, so on, for example, in the way that the device side optionally resiliently formed locking pins are formed, which cooperate with corresponding detent openings in the wipe. A reinforcement of the latching opening edges for secure latching support in cooperation with the locking pin is achieved for example by the embedded in the wipe sealing layer.

Particularly advantageous is an embodiment in which the wipe has a contour that corresponds to the outline contour of the suction nozzle or at least largely corresponds. Thus, this creates the largest possible wiping surface loaded by the vacuum cleaner nozzle. Due to the fact that the wipe is held solely by negative pressure at the nozzle, oversizes, for example, for fixing the wipe through terminals or the like can be dispensed with. There is accordingly a wipe before with a wiping surface, which is optimally used over the entire area.

The wipe can be a dry cloth in the simplest embodiment. In this case, the wet processing liquid of the floor is applied directly to the floor and distributed over the nozzle provided with the wipe. In a development of the subject invention, the wipe is a wet wipe, which is provided with moisture and optionally with cleaning agents. Also, in an alternative embodiment, the wipe may be provided with sealants or the like. Moisture is continuously transferred to the hard floor to be treated via the wet wipe. The sealing layer provided in the wipe prevents the dry suction of the moisture absorbed in the wipe.

The wipe can be constructed in multiple layers, for example, with a wiper position and a disposed above, firmly connected to the wiper position sealing layer. This sealing layer consists in a development of the subject invention of a film, further in particular of a plastic film, which is according to water and preferably also airtight. The wiping active position of the wipe is in a preferred embodiment a nonwoven, for example a PP or PE fleece, in addition, where appropriate, even with possible multiple use of the wipe a microfiber fleece.

The sealing layer is designed to be airtight, so that the negative pressure applied to the nozzle ensures a safe tightening and holding of the wipe, even with varying values due to the system. The sealing layer is so watertight that an optionally transmitted amount of water does not exceed the limit from which a commercial household vacuum cleaner could take damage. In this sense, a sealing layer, which just does not have to be absolutely impermeable, for example, consist of a sufficiently dense nonwoven layer, alternatively achieved by a sprayed onto the mopping fleece coating or a non-completely dense film.

The wipe may be interspersed with water and / or detergent and / or gloss cleaner and / or polish present. Also, different, adapted to the cleaning process wipe variants are available, such as a variant for wiping and a variant for polishing.

The sealing layer extends in one embodiment of the subject invention over the entire surface of the wipe. Alternatively, it is further proposed in this regard that the sealing layer, forming sealing layer areas is formed only partially in the wipe.

It is also provided that the wiping cloth is provided with a fixing portion at least in a partial region of at least one marginal edge, whereby an improved hold of the wiping cloth on the vacuum cleaner nozzle is achieved. Advantageously, the fixing portion is designed for fixing by suction. Thus, it is provided in an exemplary embodiment that considered in the usual direction of displacement of the nozzle front and / or rear Section of the wipe forms a fixing portion, which is respectively on and sucked in front or rear region of the suction nozzle.

The fixing portion is formed in one embodiment of the same material with the wipe, this further optionally having a better suction serving sealing layer. Furthermore, in this respect, the fixing section may be material-uniform, but its structure may be changed. Thus, furthermore, the fixing section can have a higher density compared to the wiping active region of the wipe, and can optionally also be provided with a plastic coating. This results in a hard or plate-like marginal edge for forming the fixing section, wherein further in this context, alternatively, the possibility exists to form the fixing portion of a hard plastic, further, for example in the form of a molded hard plastic edge. With this hard or plate-like marginal edge, a front and / or back-side marginal edge of the nozzle can be grasped in particular by suction. Alternatively, a mechanical fixing, for example clamping, can be achieved via the fixing section. In a further embodiment, the fixing section openings, which form openings directed to the bottom suction openings.

The wipe is impregnated in a training with a cleaning liquid, further with cleaning active substances such as surfactants. Accordingly, the wipe after placement on the vacuum cleaner nozzle is immediately ready for wet soil cultivation by continuously releasing the absorbed moisture. Alternatively, the wiping-active layer of the wipe may comprise cleaning fluid-storing, pressure-releasable microcapsules. These microcapsules are applied in an embodiment of the subject invention in layers on the wiping active layer. In each microcapsule is cleaning liquid such as water, optionally with the addition of cleaning active Funds, stockpiled. The microcapsules burst by pressure on the wipe in use, which pressure is applied via the vacuum cleaner nozzle. The liquid content of the microcapsules is released and the wipe is moistened only at the time of use, wherein further the wipe first absorbs the liquid to thereafter continuously submit it to the wet cleaning.

In a further development of the subject invention, it is provided that the wipe consists of a moist, multi-layered paper material, wherein the moisture is reached either by impregnation of the wipe already in the storage position; Alternatively, it is only achieved by bursting provided microcapsules. Due to the design of the wipe of a multi-layered paper, alternatively from a under moisturizing a stable in itself forming layer granules a possibility of disposal of the wipe is achieved after the wet cleaning. The wipe disintegrates during drying, further supported by the frictional stress in the course of the wiping movement of the vacuum cleaner nozzle in a variety of smaller pieces that can be absorbed by the existing, alternatively also additionally switchable suction air through the vacuum cleaner nozzle. The size of the decayed wiping particles is chosen taking into account the remaining suction flow openings. The decay dissolves the wipe into dust or grain-sized parts. This embodiment proves to be particularly advantageous if the wipe for disposable use is sufficiently dimensioned, so for the wet cleaning of common floor surfaces, for example, floor areas in the range of 10 to 30 square meters, further for example 15 to 20 square meters. Upon completion of the wet cleaning of such a dimensioned bottom surface, the dry wipe is preferably disposed of without further user intervention, which is further communicated to the user by an optical and / or acoustic signal.

As an alternative to the described embodiments of the wipe this may also consist of a polyurethane foam, which further preferably has cleaning-active substances. For example, surfactants and friction elements are incorporated in the polyurethane foam. Due to the abrasive effect of the friction body in the foam, the foam loaded with dirt in the course of cleaning is successively removed and, in the course of the cleaning work, alternatively absorbed by the vacuum cleaner nozzle after the cleaning work.

Finally, the invention relates to a method for the wet cleaning of floors.

For wet cleaning of floors is usually first a suction or sweeping the floor needed to take such a rough dirt particles or the like. Only then is the wet cleaning done in the usual way.

In order to simplify this process, according to the invention, a wiping cloth held on a suction nozzle of a vacuum cleaner is provided, wherein suction is also carried out at the same time by means of one or more suction channels kept free. This extraction preferably takes place in an edge area of the suction nozzle, for example further in a front area, i. in a front in the usual direction of travel of the suction nozzle area. Accordingly, an extraction of large particles or the like is effected via the reserved suction channels, after which the wet cleaning is immediately followed by the wipe provided on the underside of the suction nozzle.

In an advantageous embodiment of the method, it is provided that the cleaning is carried out by means of a wet wipe and the suction takes place outside the moist application of the floor. The humidification of the floor is done in a preferred arrangement within the plane defined by the suction nozzle of the vacuum cleaner ground plan surface, while the suction is done outside, but immediately adjacent to the footprint of the suction nozzle. Accordingly, the area to be wiped, in particular wet, is always sucked off in advance, at least in the preferred working direction of the suction nozzle. The kept suction channels can be provided not only in the usual front area of the suction nozzle, but also on several sides of the suction nozzle up to an all-around arrangement of free suction channels.

It also proves to be advantageous that, when a support of the suction nozzle is lifted on the floor, an underpressure increase is made with respect to the wipe holder. Thus, in the course of lifting the suction nozzle ensures that even a moisture-containing and thus heavy wipe on the suction nozzle further arrested. The vacuum boost is preferably only necessary when lifting the suction nozzle and thus a spacing of the wipe to be cared for soil, which negative pressure gain is achieved in a preferred embodiment by closing or reducing the Absaugquerschnittes outside the Feuchtbeaufschlagung the floor. The support of the suction nozzle on the floor is further preferably detected by a button or the like. A missing button signal leads by mechanical coupling, but alternatively also by means of electrical actuating means to the desired negative pressure gain.

A further improvement of the cleaning effect of the suction nozzle is achieved in that with respect to a conventional direction of travel of the suction nozzle in front of and behind the wipe a Bodenabsaugung is provided, being deactivated depending on the direction of travel, a suction mouth, while the other suction mouth is activated. Thus, more preferably always the front in the direction of travel suction is activated, while in the same direction of travel rear exhaust port is closed. Accordingly, the total suction is directed in each case to the front exhaust.

The wipe is removed after completion of the cleaning process of the vacuum cleaner nozzle or of an optionally provided structural part of the vacuum cleaner nozzle. This can be done in the simplest way by hand. Particularly advantageous from a hygienic point of view, an embodiment in which the wipe is sucked for disposal after completion of the wet cleaning proves this about the wiping cloth in the course of wet cleaning device. This is achieved in a preferred embodiment by, in particular, a short-term increase in the suction power of the vacuum cleaner, which, for example, may have a corresponding key for this purpose. For this purpose, the suction nozzle holding the wipe has a suction opening facing the wipe. In normal operation, that is with conventional suction with regulated suction, the wipe remains arrested by the moderately acting vacuum on the vacuum cleaner nozzle.

Fig. 1

in perspektivischer Darstellung einen Haushalts-Staubsauger mit einer Staubsaugerdüse der in Rede stehenden Art;

Fig. 2

die Staubsaugerdüse in Unteransicht;

Fig. 3

eine weitere Unteransicht gegen die Staubsaugerdüse, jedoch nach Zuordnung eines Strukturteils in einer ersten Ausführungsform, zur Vorbereitung der Staubsaugerdüse für einen Wischtuchbetrieb;

Fig. 4

eine der Figur 3 entsprechende Darstellung, jedoch eine zweite Ausführungsform des Strukturteils betreffend;

Fig. 5

die Unteransicht gegen die Staubsaugerdüse mit zugeordnetem Wischtuch;

Fig. 6

den Schnitt gemäß der Linie VI-VI in Figur 5;

Fig. 7

die Stirnansicht gegen die Staubsaugerdüse gemäß dem Pfeil VII in Figur 5;

Fig. 8

das Wischtuch in perspektivischer Einzeldarstellung;

Fig. 9

einen stark vergrößert dargestellten, schematischen Querschnitt durch das Wischtuch;

Fig. 10

eine schematische Stirnansicht gegen die Staubsaugerdüse in einer weiteren Ausführungsform, mit einem der Staubsaugerdüse zuordbaren bodenseitigen Aufsatz zur Düsenkonfiguration, einem dem Aufsatz zuordbaren Strukturteil und einem an dem Strukturteil festlegbaren Wischtuch;

Fig. 11

eine der Fig. 10 entsprechende Darstellung, jedoch eine Ausführungsform betreffend, bei welcher der Aufsatz und das Strukturteil einteilig ausgebildet sind;

Fig. 12

eine der Fig. 3 entsprechende Unteransicht gegen die Staubsaugerdüse mit angeordnetem Strukturteil und auf dem Strukturteil ausgebildeter Zwischenlage;

Fig. 13

eine schematische Schnittdarstellung durch den vorderseitigen Bereich der Staubsaugerdüse mit angeordnetem Strukturteil und Wischtuch, wobei zwischen Wischtuch und Strukturteil eine elastische Zwischenlage vorgesehen ist;

Fig. 14

eine der Fig. 13 entsprechende Schnittdarstellung, jedoch eine Ausführungsform betreffend, bei welcher die Zwischenlage aus einem geprägten Schaumstoff besteht;

Fig. 15

eine der Fig. 5 entsprechende Unteransicht, jedoch eine alternative Ausführungsform des Wischtuches betreffend;

Fig. 16

eine schematische Schnittdarstellung gemäß Fig. 13, jedoch eine Ausführungsform der Staubsaugerdüse mit einer Dichtlippe betreffend;

Fig. 17

in einer Ausschnittdarstellung einen Randkantenbereich des Wischtuches mit einem angeformten Festlegungsabschnitt;

Fig. 18

eine der Fig. 13 entsprechende Schnittdarstellung, bei Anordnung eines Wischtuches gemäß der Ausführungsform in Fig. 17;

Fig. 19

eine der Fig. 18 entsprechende Darstellung, jedoch bei Anordnung eines alternativen Wischtuches mit Festlegungsabschnitt betreffend;

Fig. 20

die Draufsicht auf die wischaktive Lage eines Wischtuches in einer weiteren Ausführungsform mit aufgebrachten, Reinigungsflüssigkeit bevorratenden Mikrokapseln;

Fig. 21

eine der Fig. 13 entsprechende Schnittdarstellung, bei Anordnung eines Wischtuches gemäß der Ausführungsform in Fig. 20;

Fig. 22

eine Ausschnittdarstellung eines Wischtuches in einer weiteren Ausführungsform, den Feuchte beinhaltenden Zustand des Wischtuches betreffend;

Fig. 23

eine Ausschnittdarstellung gemäß Fig. 22, jedoch nach vollständiger Abgabe der im Wischtuch bevorrateten Feuchtigkeit und abschließendem Zerfall des Wischtuches zufolge Austrocknung desselben;

Fig. 24

eine der Fig. 13 entsprechende Schnittdarstellung, eine weitere alternative Ausführungsform des Wischtuches, bestehend aus einem Polyurethanschaum betreffend;

Fig. 25

eine Vorderansicht gegen die Staubsaugerdüse mit angeordnetem Staubsauger, bei partiell aufgebrochener Darstellung der Staubsaugerdüse zur Veranschaulichung einer alternativen Entsorgung des Wischtuches durch Einsaugen;

Fig. 26

eine der Fig. 1 entsprechende Darstellung, jedoch eine weitere Ausführungsform der Saugdüse betreffend;

Fig. 27

die Staubsaugerdüse in Unteransicht mit Blick auf ein eingesetztes Strukturteil;

Fig. 28

die Unteransicht gegen die Staubsaugerdüse gemäß Fig. 27, jedoch nach Zuordnung eines Wischtuches;

Fig. 29

einen schematischen Längsschnitt durch die Staubsaugerdüse der weiteren Ausführungsform;

Fig. 30

eine der Fig. 29 entsprechende schematische Längsschnittdarstellung, eine weitere Ausführungsform der Staubsaugerdüse betreffend;

Fig. 31

den stirnseitigen Bereich der Staubsaugerdüse in einem schematischen Längsschnitt, eine Dichtlippenstellung bei Verlagerung der Düse in einer Verfahrrichtung betreffend;

Fig. 32

eine der Fig. 31 entsprechende Darstellung, jedoch die Dichtlippenstellung in entgegengesetzter Verfahrrichtung betreffend;

Fig. 33

eine weitere, der Fig. 31 entsprechende Schnittdarstellung, jedoch eine Ausführungsform mit verschließbarer Saugmündung betreffend und

Fig. 34

eine der Fig. 33 entsprechende Darstellung, jedoch bei Abheben der Saugdüse vom zu reinigenden Boden.

The invention is explained below with reference to the accompanying drawings, which illustrate only several embodiments. It shows:

Fig. 1

in perspective a household vacuum cleaner with a vacuum cleaner nozzle of the type in question;

Fig. 2

the vacuum cleaner nozzle in bottom view;

Fig. 3

a further bottom view against the vacuum cleaner nozzle, but after allocation of a structural member in a first embodiment, for preparing the vacuum cleaner nozzle for a wiper operation;

Fig. 4

one of the FIG. 3 corresponding representation, however, concerning a second embodiment of the structural part;

Fig. 5

the bottom view against the vacuum cleaner nozzle with associated wiper;

Fig. 6

the section according to the line VI-VI in FIG. 5 ;

Fig. 7

the front view against the vacuum cleaner nozzle according to the arrow VII in FIG. 5 ;

Fig. 8

the wipe in perspective detail view;

Fig. 9

a greatly enlarged, schematic cross section through the wipe;

Fig. 10

a schematic end view against the vacuum cleaner nozzle in a further embodiment, with a vacuum cleaner nozzle assignable bottom-side nozzle for nozzle configuration, a the tower assignable structural part and a fixable on the structural part wipe;

Fig. 11

one of the Fig. 10 corresponding representation, however, concerning an embodiment in which the attachment and the structural part are integrally formed;

Fig. 12

one of the Fig. 3 corresponding bottom view against the vacuum cleaner nozzle with arranged structural part and formed on the structural part intermediate layer;

Fig. 13

a schematic sectional view through the front region of the vacuum cleaner nozzle with arranged structural part and wipe, wherein between wiper and structural part an elastic intermediate layer is provided;

Fig. 14

one of the Fig. 13 corresponding sectional view, but concerning an embodiment in which the intermediate layer consists of an embossed foam;

Fig. 15

one of the Fig. 5 corresponding bottom view, however, concerning an alternative embodiment of the wipe;

Fig. 16

a schematic sectional view according to Fig. 13 but referring to an embodiment of the vacuum cleaner nozzle with a sealing lip;

Fig. 17

in a sectional view of a marginal edge region of the wipe with an integrally formed attachment portion;

Fig. 18

one of the Fig. 13 corresponding sectional view, in the arrangement of a wiper according to the embodiment in Fig. 17 ;

Fig. 19

one of the Fig. 18 corresponding representation, however, with respect to arrangement of an alternative wiping cloth with fixing section concerning;

Fig. 20

the top view of the wiping position of a wipe in a further embodiment with applied, cleaning liquid-storing microcapsules;

Fig. 21

one of the Fig. 13 corresponding sectional view, in the arrangement of a wiper according to the embodiment in Fig. 20 ;

Fig. 22

a detail view of a wipe in a further embodiment concerning the moisture-containing state of the wipe;

Fig. 23

a cutout view according to Fig. 22 However, after complete delivery of stored in the wipe moisture and final disintegration of the wipe, according to dehydration of the same;

Fig. 24

one of the Fig. 13 corresponding sectional view, another alternative embodiment of the wipe, consisting of a polyurethane foam concerning;

Fig. 25

a front view against the vacuum cleaner nozzle with arranged vacuum cleaner, in a partially broken view of the vacuum cleaner nozzle to illustrate an alternative disposal of the wipe by sucking;

Fig. 26

one of the Fig. 1 corresponding representation, however, concerning a further embodiment of the suction nozzle;

Fig. 27

the vacuum cleaner nozzle in a bottom view overlooking an inserted structural part;

Fig. 28

the bottom view against the vacuum cleaner nozzle according to Fig. 27 , but after allocation of a wipe;

Fig. 29

a schematic longitudinal section through the vacuum cleaner nozzle of the further embodiment;

Fig. 30

one of the Fig. 29 corresponding schematic longitudinal sectional view concerning a further embodiment of the vacuum cleaner nozzle;

Fig. 31

the frontal region of the vacuum cleaner nozzle in a schematic longitudinal section, a sealing lip position upon displacement of the nozzle in a direction of travel regarding;

Fig. 32

one of the Fig. 31 corresponding representation, but concerning the sealing lip position in the opposite direction of travel;

Fig. 33

another, the Fig. 31 corresponding sectional view, however, an embodiment with closable suction mouth concerning and

Fig. 34

one of the Fig. 33 corresponding representation, but when lifting the suction nozzle from the ground to be cleaned.

Shown and described is first with reference to FIG. 1 a vacuum cleaner 1 with a vacuum cleaner nozzle 2 for processing a floor 3. In the illustrated embodiment, the nozzle is a carpet floor nozzle. However, the features described below of this nozzle 2 and the further described combination of the nozzle 2 with a wipe 4 are also conceivable for nozzles 2 for processing hard floors, in which nozzles 2 may be provided, for example, with retractable bristle strips for selective processing of hard and carpeted floors ,

The nozzle 2 is composed essentially of a nozzle head 5 placed on the base 3 and a nozzle body 6 connecting the nozzle head 5 to the vacuum cleaner 1, wherein a connecting piece 7 is formed on the nozzle body 6 for the fluidic and possibly electrical connection of the nozzle 2 to the vacuum cleaner 1. Through the nozzle body 6 extends, starting from the connecting piece 7, a suction channel, which opens into the nozzle head 5 in a suction 8.

The connecting piece is arranged on the upper side in the region of one end of the nozzle body 6 such that the connecting piece 7 is pivotable in a pivot joint about an axis transverse to the usual direction of travel r of the nozzle 2. On this pivot axis rollers 9 are also arranged, via which the nozzle body 6 is supported on the bottom 3 at one end.

As from the individual presentation in FIG. 2 can be seen, the nozzle bottom 10 interrupting valleys 11 are formed on the underside of the nozzle, the channel-like lead to the suction port 8 and are in fluid communication with this. There are provided in the illustrated embodiment, four such valleys 11, the pairs associated with a nozzle side approximately at an angle of 45 ° to the transverse to the direction r aligned nozzle front 12 extend. These valleys 11 are open to the nozzle front 12. Accordingly, four slot-shaped suction openings 13 are provided in the nozzle front 12 in the illustrated embodiment.

The valleys 11 fluidically connected to the suction mouth 8 are also open for tillage, in particular for carpet processing in the direction of the floor to be cared for, this with a width measured transversely to the longitudinal extent of the valleys 11, which in the illustrated embodiment about one-third to one-sixth the extension length of the valleys 11 corresponds.

In order to use the nozzle 2 in combination with a wipe 4, a wiper 4 ultimately supporting structural part 14 is provided. This is an insert, which is preferably produced by plastic injection molding.

The insert part or structural part 14 is adapted to the suction machining sections formed in the nozzle bottom 10, that is to say adapted to the geometry resulting from the valleys 11 and the suction mouth 8. Thus, each valley 11 is associated with a lattice-like portion 15 of the structural part 14, which lattice-like portion 15 corresponding to the valleys 11 is arranged overlapping. Due to the lattice-like structure, a plurality of area-reduced openings 16 results compared with the valley openings.

In the region of the suction mouth 8, the structural part 14 in the embodiment according to FIG. 3 formed plate-like closed.

Next, the structural part 14 is designed so that after insertion of the same in the valleys 11 and in the suction 8 an approximately flat surface is reached with the adjacent nozzle bottom portions.

The insert is in the valleys 11 and in the suction 8 clamped or restrained.

In FIG. 4 an alternative embodiment of the structural part 14 and the insert part is shown. This is not, as described above, a lattice structure, but rather a plate-shaped insert part produced, for example, in a plastic injection molding process, which is adapted to the geometry predetermined by the valleys 11 and the suction mouth 8. In the plate-shaped portions 17, which are attributable to the valleys 11, slit-like openings 18 are left for the flow connection to the valleys eleventh

Also, the plate-like closure portion 19 is provided in this embodiment with slot-like openings 20 which are aligned with the usual direction of travel r, while the openings 18 are aligned in the valleys associated portions 17 adapted to the extension of the valleys 11.

Regardless of the configuration of the structural part 14 or of the insert part, the nozzle front-side suction openings 13 remain open when the structural part 14 is inserted into the nozzle base 10 or into the valleys 11 and the suction mouth 8.

The nozzle 2 is a contour-matched wipe 4 as shown in FIG FIG. 8 assignable. According to the outline contour of the nozzle 2, the wipe 4 also has an approximately trapezoidal floor plan with strongly rounded corner areas.

The wipe 4 is multi-layered, concretely two-layered and has a wiping active layer 21 in the form of a nonwoven and a likewise extending over the entire surface sealing layer 22. The latter is in the illustrated embodiment, a film, such as a plastic film.

The wipe 4 is assigned to the nozzle 2 in such a way that the sealing layer 22 lies between the wiping layer 21 and the inserted structural part 14. The holder of the wipe 4 on the nozzle 2 is effected solely by negative pressure, which is built up in the operation of the vacuum cleaner 1 in the region of the valleys 11 and 8 of the suction. The structural part 14 used provides the wiping cloth 4 with a flat support while at the same time supporting it, so that the wipe 4 is not partially sucked into the area of the valleys 11 or into the area of the suction mouth 8.

The sealing layer 22 is designed airtight, which further supports the Anhaftffekt by negative pressure. In addition, the sealing layer 22 may also be made waterproof, which prevents the absorption of moisture located on the floor 3 by the wiper 4. In addition, in such a configuration, the wipe 4 itself may be present as a wet wipe, so on, for example, with in the wiping active layer 21 recorded cleaning agents.

The assignment of the wipe 4 to the nozzle 2 can be done in a very simple manner by placing the nozzle 2 on a wiper 4 and then turning on the vacuum cleaner 1. This results in a simple and hygienic handling. Also, the removal of the wipe 4 can be designed in the simplest way by by turning off the vacuum cleaner 1 and accordingly decreasing negative pressure in the nozzle 2, the previously held wipe 4 drops.

By the sealing layer 22 of the wipe 4 and the associated airtightness of the wipe 4, the suction force is increased to the free in the nozzle front 12 suction ports 13. About this suction openings 13 can be absorbed in the course of a wiping coarse dirt before reaching the surface with the wipe 4. Accordingly, the area upstream of the nozzle 2 in the usual direction of travel and correspondingly in the usual wiping direction r is prepared by suction for wiping. It needs accordingly no elaborate, since separately carried out sucking or sweeping the surface to be wiped. Rather, these operations are done at the same time by means of the proposed provided with the wipe 4 nozzle 2.

The vacuum cleaner nozzle 2, in particular the nozzle head 5 can be configured as a preconfigured nozzle unit for the usual suction processing only a Bodenbelagsart, further alternatively preconfigured for selectively processing different types of soil, for example by fußbetätigbare switching between a hard floor and carpet processing, in which switching curtain means, such as bristle strips and / or sealing lips are raised or lowered.

As in the Figures 10 and 11 illustrated, in a further alternative embodiment, the possibility of the vacuum cleaner nozzle or the nozzle head 5 according to a selected configuration to be provided with a cap 23. In each case, an attachment 23 for processing carpets is shown. The attachment 23 is plugged into the nozzle head 5 on the underside, wherein further in the attachment 23 in particular the suction mouth 8 as well as the valleys 11 and beyond the front suction openings 13 are formed.

As shown in FIG. 10 is the attachment 23, the structural part described 14 as a single part assignable, further plugged, including the structural part 14 in the illustrated embodiment locking tongues 24 which cooperate in association with the article 23 with corresponding locking receptacles. Correspondingly, the structural part 14 can optionally be assigned to the attachment 23, namely in the case of a desired wet soil cultivation by means of a wiper cloth 4 which can be arranged further.

Further alternatively, the attachment 23, as in FIG. 11 represented, at the same time carry the structural part 14 insoluble, with which structural part 14 and 23 essay a common, one-piece attachment for the nozzle head 5 form. Accordingly, a so-designed attachment 23 is suitable in a preferred embodiment only for Bodenwischbearbeitung after allocation of a wiper 4.

The FIGS. 12 to 14 show further embodiments in which an intermediate layer 25 is arranged between the structural part 14 and the wipe 4. This intermediate layer 25 is in the in FIG. 12 In this case, the silicone 26 may in this case be applied over the whole area on the surface of the structural part 14 facing the wipe 4, adjacent to the lattice-like sections 15 covering the valleys 11 and the suction mouth 8. Alternatively, the intermediate layer 25, as in FIG. 12 represented, a grid-like structure applied on both sides of the lattice-like portions 15 forming in the form of silicone beads. According to this embodiment, the friction between the structural part 14 and wipe 4 is increased, which contributes to a better adhesion of the wipe 4 on the structural part 14. This further leads to an improved arrest of the wipe 4 on the structural part 15, in particular in the course of tillage. The wipe 4 hereby securely retains the desired position.

To compensate for uneven floors, the intermediate layer 25 is set elastically in a further embodiment, as in FIG. 13 This foam layer 27 is preferably held captive on the structural part 14, this more preferably under full-surface coverage of the structural part 14, wherein further the foam layer 27 is set to permeate air permeable for further definition of the wipe 4 by means of negative pressure. Accordingly, the suction of the wipe 4 via the valleys 11 through the foam layer 27 passes therethrough. In a further alternative embodiment, the foam layer 27 may also be associated with the valleys 11 permeable to air, while areas of the valleys 11 are impermeable to air.

According to the selected arrangement of an intermediate layer 25 in the form of an elastic foam layer 27, an at least approximately full-surface support of the wipe 4 on the floor 3 is achieved in the course of wet soil treatment even with unevenness of the floor 3.

Also, there is the possibility according to the embodiment in Fig. 14 to form the intermediate layer 25 of an embossed foam 28. This embossed foam 28 has a structured surface facing the wipe 4, for example in the form of a pyramidal structure, which structure allows for increased tissue adhesion and further provides a positioning aid for the wipe 4.

The embossed foam 28 is arrested according to the embodiment described above with the structural part 14, the latter more preferably over the entire surface covering, wherein the foam 28 at least partially, the valleys assigned 11, is permeable to air, so that a suction of the wipe 4 by the foam 28 for Adhesion to the foam 28 takes place.

The sealing layer 22 provided in the wipe 43 extends over the entire surface of the wipe 4 in a preferred embodiment. The described vacuum-affixed fixing of the wipe 4 is achieved by suction onto the structural part 14 via the sealing layer 22 which is set in particular in an airtight manner. As in FIG. 15 shown in another embodiment, the sealing layer 22 may alternatively be formed only partially, namely further sealing layer regions 29 ausformend, which are assigned to the suction of the wipe 4 serving Luftanströmöffnungen the structural part 14. Thus, in the illustrated embodiment according to FIG. 15 the sealing layer regions 29 in the wipe 4 the valleys 11 of the nozzle plate 10 and the lattice-like Sections 15 of the structural part 14 assigned formed. Outside this sealing layer regions 29, the wipe 4 can be designed at least permeable to air.

A arranged in front of the front suction openings 13 sealing lip 30 is used in a further embodiment according to FIG. 16 to increase the negative pressure acting on the wipe 4, whereby the adhesion of the wipe 4 to the structural part 14 is increased. This goes hand in hand with an increase in the suction power.

The sealing lip 30, for example in the form of a rubber lip, extends in the usual direction of travel r of the vacuum cleaner nozzle 2 in front of the suction openings 13, covering them substantially towards the nozzle front 12, whereby the front suction openings are directed downward in the direction of the floor 3. A support against the usual direction of travel r undergoes the sealing lip 30 on the housing side, the suction openings 13 laterally limiting webs 31st

Further alternatively, the sealing lip 30 may also have window-like openings, whereby the suction openings 13 are not completely covered. It is thus achieved only a partial sealing of the suction openings 13 to increase acting on the wipe 4 negative pressure.

A further improvement of the maintenance of the wipe 4 on the structural part 14 is achieved by forming fixing sections 32 on the wipe 4. Such a fixing section 32 extends beyond the necessary wiper extension in the case of an overall planar configuration of the wipe 4, correspondingly in a preferred embodiment in the course the operation not wiping active on the floor to be cared for 3. It is further preferred in this regard, a fixing portion 32 of the nozzle front 12 attributable Associated with the peripheral edge of the wipe 4, for encompassing the, the nozzle front 12 facing the edge of the structural part 14th

In the Figures 17 and 18 an embodiment is shown in which the fixing portion 32 consists of a plate-shaped hard plastic part 33. This is, for example, molded onto the associated peripheral edge of the wipe 4 and preferably extends completely over the width of the wipe 4 measured transversely to the usual travel direction. Alternatively, the plate-shaped fixing section 32 can also be provided by appropriate treatment of the wipe material, for example by compression and / or coating be formed of a plastic.

The so-defined fixing portion 32 is provided with transverse to the usual direction of travel r slotted apertures 34 which are associated with the nozzle front-side suction openings 13 in the assignment position of the wipe 4 to the structural part 14.

The enclosing of the associated peripheral edge of the structural part 14 is achieved in the operation of the vacuum cleaner nozzle 2 by the acting negative pressure (see. Fig. 18 ). Here, the fixing portion 32 of the content waltuches 4 is displaced in an angled from the planar extension of the wiping layer 21 plane, so in the illustrated embodiment, in a direction perpendicular to the wiping layer 21 plane, wherein by means of the fixing section 32 at least partially closing the nozzle front side suction openings 13 is reached. The provided in the fixing portion 32 openings 34 thereafter form corresponding suction openings, which are directed towards the floor 3 out.

Alternatively, the fixing portion 32 as shown in FIG FIG. 19 shown to be realized directly from the wipe material. This fixing section 32 is correspondingly unchanged from the wiping active portion of the wipe 4, optionally has a sealing layer accordingly. In accordance with the generally limp configuration of the wipe 4, the fixing edge 32 protruding beyond the structural part 14 is sucked in during operation of the vacuum cleaner nozzle 2 in order to reach over the associated peripheral edge of the structural part 14.

In addition, more Festlegungsabschnitte 32, for example, the rear portion of the nozzle head 5 and the structural part 14 assigned to be provided, so that by sucking and flipping the fixing sections 32 the Position of the wipe 4 is secured on the structural part 14 against slipping.

In a preferred embodiment, the wiping cloth 4 is already wet with an assignment to the structural part 14 or to the nozzle head 5, in particular by impregnation of the wipe 4 with a cleaning liquid. The latter can be water in the simplest form, moreover optionally with the addition of cleaning-active substances such as surfactants. In the course of the cleaning process, the wipe 4 is continuously cleaning liquid for application to the floor 3 from.

Alternatively, the wipe 4, as in the FIGS. 20 and 21 shown schematically, on the wiper-active layer 21, that is, on the surface facing away from the structural part 14, a layer of microcapsules 35, which store the cleaning liquid. After placing such a stocked wiper 4 to the vacuum cleaner nozzle 2 and placing them on the floor to be cleaned 3, the microcapsules 35 burst under the applied pressure load on the vacuum cleaner nozzle 2 and possibly the vacuum cleaner 1 and release the stored cleaning fluid. The latter is immediately thereafter absorbed by the hitherto dry wipe 4 and continuously discharged again in the usual manner in the course of the cleaning process. As a result of this embodiment, moistening of the wipe 4 takes place only at the beginning of the cleaning application.

The microcapsules 35 are formed, for example, by dome-shaped envelopes made of a microfine plastic film.

The FIGS. 22 and 23 show a further embodiment of the wipe 4. This consists in this case of a multi-layered paper material, which is impregnated with cleaning liquid. In this wet state, the wipe 4 on a sufficient stability, which also withstands a stress during wiping by back and forth displacement of the wipe 4 provided with the vacuum cleaner nozzle 2 non-destructive.

Upon completion of dispensing of the cleaning liquid stored in the wipe 4, the wipe 4 dries, resulting in many small irregular pieces 36 due to the selected configuration of the wipe 4 from a multi-layered paper material for dissolving and disintegrating the wipe 4 (see FIG. Fig. 23 ). These now dry cloth pieces 36 can be absorbed after the wet cleaning without further change in the configuration of the vacuum cleaner 2 over this, for example via the nozzle front suction openings 13, but also in a disintegration of the wipe 4 in dust or grain-sized cloth pieces 36 on the openings 16 of the lattice-like structural part section 15th

In a further alternative embodiment, the wipe 4 consists of a polyurethane foam, in addition to cleaning-active substances such as cleaning fluid, optionally with the addition of surfactants friction body 37 has. These Friction body 37 are incorporated in the foam and are partially free in the wiping active surface area. In the course of wet cleaning, the dirt removed from the floor 3 is absorbed by the foam, wherein further in the course of cleaning by friction on the floor 3, the partially exposed friction body 37 successively remove the dirt-laden foam. The thus designed wipe 4 is dissolved accordingly in the course of floor finishing gradually reducing the wipe thickness by abrasive removal, the ablated foam particles and the dissolved friction either directly in the course of the cleaning process directly on the nozzle front suction openings 13 or alternatively after completion of the wet cleaning work in be absorbed in another operation.

The polyurethane foam forming the wipe 4 is airtight, and more preferably liquid-tight, for attachment to the structural part 14 or to the nozzle base 10, if appropriate with the omission of the structural part 14.

FIG. 25 shows in a further embodiment, an alternative method for disposal of a contaminated wipe 4 after cleaning. The wipe 4 is hereby sucked in as a whole for disposal via the vacuum cleaner nozzle 2, to which further assigned in the illustrated embodiment, the vacuum cleaner 1 an optionally separately formed key 38 is provided, via which a short-term sharply increasing blower power can be achieved. By acting on the wiper 4 on the vacuum cleaner nozzle 2 excessive suction air flow, the wiper 4 is sucked through the vacuum cleaner nozzle 2.

The wipe disposal according to the in the FIGS. 22 to 25 illustrated embodiments are made contactless for the user, which each a hygienic solution of disposal is achieved. Together with the wipe 4 at the same time the recorded dirt is disposed of.

The FIGS. 26 to 29 In this, the, passing through the connecting piece 7 and fluidly connected to the suction fan of the vacuum cleaner 1 suction channel 39 divides into two Saugkanalzweige, namely in one of the negative-pressure holder of the wipe 4 serving support Saugkanalzweig 40 and one of the immediate suction of the floor 3 serving suction channel branch 41. As shown in the schematic representation in FIG. 29 can be seen, the branch 42 is formed in the suction channel 39 substantially immediately downstream downstream of the connecting piece 7.

Starting from the branch 42, the suction channel branch 41 extends above the holder suction channel branch 40, as far as the nozzle front 12, where the suction channel branch 41 extends over the entire width of the nozzle head 5, down to the floor 3 Bodenabsaugbereich 43 ausformt. This is nozzle-like designed with a transverse to the usual direction of travel r aligned, slot-like mouth.

The holding suction channel branch 40 forms a cloth holding chamber 44 that opens only downwards, that is to say toward the nozzle bottom 10. This cloth holding chamber 44 is circumferentially, as well as the cover side by a the holder suction channel branch 40 to the suction channel branch 41 separating cover 45 substantially closed, this only leaving a left in the branch 42 suction passage 46. This suction passage 46 is opposite to the ultimately the cloth holding chamber 44 forming support Saugkanalzweig 40, further also with respect to the upstream subsequent suction channel 39 cross-section reduced, so that the bottleneck formed acts in the manner of a Venturi nozzle. The thus formed Kanalengstelle becomes appropriate permeated with a suction air flow of increased speed, resulting in the cloth holding chamber 44 to an increased negative pressure.

The cloth holding chamber 44 is associated with the nozzle bottom 10 covered by a structural part 14. This is in the illustrated embodiment according to the embodiments with respect to the first embodiment by a lattice-like structural part 14, which is further fixed in the illustrated embodiment, not releasable nozzle bottom plane to the vacuum cleaner nozzle 2 is. Alternatively, an exchangeable fixable structural part 14 is possible.

By means of the plurality of structural part openings 16, the wipe 4 arranged on the underside of the structural part 14 is set to be under pressure during operation of the vacuum cleaner 1, wherein the wipe 4 further extends over the entire surface of the structural part 14. It is further provided that with the exception of the nozzle front side Bodenabsaugbereiches 43, the structural part 14 and the wipe 4 extend over the entire remaining nozzle bottom surface.

About the front Bodenabsaugbereich 43 4 coarse and fine particles are absorbed by the wiper 4 before contacting the corresponding floor section in the course of the movement of the vacuum cleaner nozzle 1 on the floor. In order to counteract an incidence of dirt / dust particles in the holding Saugkanalzweig 42 after a shutdown of the suction air flow, further possibly also caused by any turbulence in the suction channel branch 41, the support Saugkanalzweig 40 by a filter-like release agent 47 to the suction channel 39th , further to the suction channel branch 41 separately. This release agent 47 is in the illustrated embodiment, a arranged in the region of the branch 42 filter layer.

When viewed in the direction of travel r, a sealing lip 48 designed to rest on the floor 3 is provided between the floor suction area 43 and the wipe area adjoining in the direction of travel r. This extends transversely to the usual direction of travel r over the entire width of the Bodenabsaugbereiches 43 and is provided with a vertical cross-sectional length, which allows a reversal of the sealing lip 48 in dependence on the selected direction of travel.

This sealing lip 48 protects the wiping cloth 4 against dehydration by the air stream drawn in through the bottom suction area 43. Next, the sealing lip 48 provides an aid when driving over flat obstacles, such as door sills. In a sliding displacement of the vacuum cleaner nozzle 2 in the direction of displacement r, that is so viewed from the user forward puts the free end of the sealing lip 48 on the associated edge of the wipe 4, so that the wipe 4, for example, when driving over a door threshold does not break or peels. The sealing lip 48 accordingly serves at the same time as a drive-over.

Is, as in FIG. 30 by way of example both associated with the nozzle front 12 and associated with the nozzle back each provided a Bodenabsaugbereich 43, each Bodenabsaugbereich 43, 43 'associated with a sealing lip 48 and 48', wherein each front in the direction of travel sealing lip 48, the associated Bodenabsaugbereich 43 not influencing , the overhanging edge of the wipe 4 facing and the rear in the direction of travel sealing lip 48 'under the same direction deflection according to the downstream in the direction of Bodenabsaugbereich 43' sealingly closes (see also thereto FIGS. 31 and 32 ). As a result of the sealing closure of the respective rear floor suction area in the direction of travel, the total suction force is on the bottom suction area 43 which is in each case in the direction of travel directed. This leads to an improved absorption of dust or dirt on the floor 3 in front of the wipe 4.

Are, as in FIG. 30 shown schematically, the front and back of the vacuum cleaner 2 each Bodenabsaugbereiche 43 and 43 'are provided, they are under sub-branching of the suction channel 39 in a front-suction channel branch 49 a rear-suction channel branch 50 fluidly connected. The branch 42 has corresponding to the suction channel 39 on three Saugkanalzweige.

In the FIGS. 33 and 34 an embodiment is shown in which a ground contact of the vacuum cleaner nozzle 2 is detected. The following explanations each refer to a front floor suction. In an optionally provided further suction in the rear region of the vacuum cleaner nozzle 2, a same device is provided.

To detect the ground contact, a pushbutton 51 is provided on the front side of the nozzle, in the usual direction of travel r upstream of the bottom suction region 43. This has a feeler plate 42 for resting on the floor 3 in the ground contact position. A vertically extending from the probe plate 42 to vertically above plunger 53 passes through the nozzle bottom 10. At the free end of the plunger 53 is a cranked in the longitudinal direction extending closure flap 54 is articulated.

A plunger 53 surrounding, at one end on the Tastteller 52 and the other bottom of the nozzle plate 10 supporting compression spring 55 loads the button 51 vertically down, is correspondingly compressed at a Aufsitzen the vacuum cleaner nozzle 2 on the floor 3 due to corresponding vertical depression of the probe 51. In this key position, the closure flap 54 is in an open position according to FIG. 33 held.

With lifting the vacuum cleaner nozzle 2 from the floor 3, the button 51 and the Tastteller 52, the support on the floor 3 is taken. The compression spring 55 causes correspondingly by relaxation of the same a relative vertical displacement of the probe 51 to the nozzle plate 10 down, bringing about the case here lowering plunger 53, the shutter 54 via a device-side control surface 56 in the associated Bodenabsaugbereich 43 closing position according to FIG. 34 pivoting shifted.

According to the above-described embodiment, when the vacuum cleaner nozzle 2 is lifted off the floor 3, it is automatically closed or the bottom suction areas, which is accompanied by a vacuum increase in the area of the cloth holding chamber 44. Thus, with an appropriate lifting of the vacuum cleaner nozzle 2, an optionally soaked and thus heavy wiping cloth 4 securely held on the underside of the nozzle.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the holding suction channel branch 40 extends below the suction channel branch 41.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner in which the Saugkanalzweige 40, 41 at least partially in the horizontal direction next to each other.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner, wherein the mechanical means consist of a hook and loop fastener. The invention of the invention alone or in combination with one of the objects described above is of importance is also a vacuum cleaner in which the mechanical means are locking means.

The invention, which is of importance on its own or in combination with any of the objects described above, is also a vacuum cleaner in which the support suction duct branch 40 has a flow channel taper upstream of the wipe 4.

The subject matter of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner, in which the flow channel taper is formed at the branch 42 of the two flow channel branches 40, 41.

The invention, which is of importance solely or in combination with one of the objects described above, is also a vacuum cleaner in which a mouth of the suction channel branch 41 is formed in front of and behind the wipe 4 with respect to a conventional travel direction r of the vacuum cleaner nozzle 2.

The object of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the suction channel branch 41 is subdivided into a rear-suction channel branch 50 and a front-suction channel branch 49.

The object of the invention, which is important on its own or in combination with one of the objects described above, is also a vacuum cleaner in which both the mouth of the front Bodenabsaugbereiches 43 and the mouth of the rear Bodenabsaugbereiches 43 'in the horizontal direction are separated by a trained for resting on the floor 3 sealing lip 48, 48 'to the wipe area.

The object of the invention which is of importance on its own or in combination with one of the objects described above is also a vacuum cleaner in which a vacuum reinforcement in the holder suction channel branch 40 is achieved by reducing the cross section of the suction mouth of the bottom suction region 43, 43 '.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner, in which the lifting of the vacuum cleaner nozzle 2 is detected by a ground contact detecting a button 51.

The invention is alone or in combination with one of the objects described above of importance, is also a vacuum cleaner in which in the course of lifting the vacuum cleaner nozzle 2 from the floor 3 of the suction channel 39 is closed.

The invention is alone or in combination with one of the objects described above of importance, is also a vacuum cleaner in which the vacuum cleaner nozzle 2 in the sense of one or more leading to the suction mouth 8 valleys 11 is structured and that, a valley 11 at least partially open and air-permeable structure part 14 is provided, for the arrangement between the wipe 4 and the nozzle. 2

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner, in which the structural part 14 is a usable in the nozzle 2 from below plastic part.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner, wherein the structural member 14 suction apertures 16, 18, 20 has.

The subject matter of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which an intermediate layer 25 is arranged between the structural part 14 and the wipe 4.

The invention of the invention alone or in combination with one of the objects described above is of importance is also a vacuum cleaner in which the intermediate layer 25 is formed from an embossed foam 28.

The subject of the invention, which is of importance alone or in combination with one of the objects described above, is also a vacuum cleaner in which the intermediate layer 25 is elastic.

The invention of the invention alone or in combination with one of the objects described above is of importance is also a vacuum cleaner in which the intermediate layer 25 consists of a foam material.

The subject matter of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner, in which the intermediate layer 25 consists of a coating of the structural part 14.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner, in which the intermediate layer 25 in any case faces the wipe 4 made of silicone 26.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner in which the sealing layer 22 is airtight.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the sealing layer 22, forming sealing layer regions 29, is partially formed in the wipe 4.

The object of the invention which is of importance on its own or in combination with one of the objects described above is also a vacuum cleaner in which the sealing layer regions 29 are associated with the valleys 11 and the suction mouth 8, respectively.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the wipe 4 has a contour which corresponds to the contour of the contour of the suction nozzle 2.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the wipe 4 is a wet wipe.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner, in which the suction openings 13, a sealing lip 30 is associated. The invention of the invention alone or in combination with one of the objects described above is of importance, is also a vacuum cleaner in which the wipe 4 is constructed multi-layered.

The invention of the invention alone or in combination with one of the objects described above is of importance is also a vacuum cleaner in which the sealing layer 22 consists of a film.

The invention of the invention alone or in combination with one of the objects described above is of importance is also a vacuum cleaner in which the wiping layer 21 is a nonwoven.

The subject matter of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the held wipe 4 extends in a planar manner.

The invention, which is of importance solely or in combination with one of the objects described above, is also a vacuum cleaner in which the wipe 4 is provided with a fixing portion 32 at least in a partial region of at least one peripheral edge.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the fixing section 32 is designed to be set by suction.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the fixing section 32 is formed with the wipe 4 in the same material.

The subject of the invention, which is important on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the fixing portion 32 is made of a hard plastic.

The subject matter of the invention, which is of importance on its own or in combination with one of the objects described above, is also a vacuum cleaner in which the fixing section 32 has openings 34.

The invention is alone or in combination with one of the objects described above of importance, is also a vacuum cleaner in which the fixing portion 32 of the content wiping cloth 4 is displaced in an angled from the planar extension of the wiping active layer 21 level.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wipe 4 comprises means for preferably complementary support of the wipe 4.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the mechanical means are parts of a hook and loop fastener.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the mechanical means are latching means.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wipe 4 has a contour that corresponds to the outline contour of the suction nozzle 2.

The invention of importance alone or in combination with one of the objects described above, is also a wipe, wherein the wipe 4 is a wet wipe.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wipe 4 is constructed in multiple layers.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the sealing layer 22 consists of a film.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wiping-active layer 21 is a nonwoven.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the sealing layer 22 sealing layer areas 29 forming partially formed in the wipe 4.

The subject of the invention, which is of importance on its own or in combination with one of the objects described above, is also a wipe, wherein the fixing section 32 is designed for fixing by suction.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the fixing portion 32 is formed integrally with the wipe 4.

The subject matter of the invention, which is of importance on its own or in combination with one of the objects described above, is also a wipe, wherein the fixing section 32 consists of a hard plastic.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the fixing portion 32 has openings 34.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wipe 4 is impregnated with a cleaning liquid.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wiping layer 21 of the wipe 4, cleaning liquid vorratsende, pressure-openable microcapsules 35 has.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wipe 4 consists of a moist, multi-layered paper material.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a wipe, wherein the wipe 4 is made of a polyurethane foam having cleaning-active substances.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a method in which in a cancellation of a support of the vacuum cleaner nozzle 2 on the floor 3, a negative pressure gain with respect to the wipe holder is made.

The invention of importance alone or in combination with one of the objects described above, is also a method in which the wipe 4 is sucked for disposal after completion of the wet cleaning.

The invention of the invention alone or in combination with one of the objects described above is of importance, is also a method in which the disposal of the suction power is increased.

All disclosed features are essential to the invention. The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

LIST OF REFERENCE NUMBERS

1

vacuum cleaner

2

vacuum cleaner nozzle

3

floor

4

wipe

5

nozzle head

6

nozzle body

7

spigot

8th

saugmund

9

castors

10

nozzle bottom

11

Valleys

12

nozzle face

13

suction ports

14

structure part

15

section

16

openings

17

sections

18

openings

19

closure portion

20

openings

21

wipe-active location

22

sealing layer

23

essay

24

locking tongues

25

liner

26

silicone

27

foam layer

28

foam

29

Sealing layer areas

30

sealing lip

31

Stege

32

fixing portions

33

Hard plastic part

34

perforations

35

microcapsules

36

cloth pieces

37

friction body

38

button

39

suction

40

Bracket Saugkanalzweig

41

Suction channel branch

42

diversion

43

Bodenabsaugbereich

44

Cloth holding chamber

45

blanket

46

suction passage

47

release agent

48

sealing lip

48 '

sealing lip

49

Front suction channel branch

50

Behind-suction channel branch

51

button

52

Tastteller

53

tappet

54

flap

55

compression spring

56

control surface

r

traversing

Claims (15)

Combination of a vacuum cleaner nozzle (2) with a wipe (4), wherein the vacuum cleaner nozzle (2) has a suction mouth (8) and the wipe (4) is preferably to be supported by means of negative pressure on the nozzle (2), characterized in that the wipe (4) has a sealing layer (22) to prevent the absorption of liquids. Combination according to Claim 1 or in particular according thereto, characterized in that the vacuum cleaner nozzle (2) has two suction channel branches (40, 41) separating upstream of the wiper (4), one of which is used to generate a holding negative pressure for the wipe (4). and one for immediate soil extraction. Combination according to one or more of the preceding claims or in particular according thereto, characterized in that the Saugkanalzweige (40, 41) extend at least partially arranged one above the other. Combination according to one or more of the preceding claims or in particular according thereto, characterized in that the wipe area is separated from the Bodenabsaugbereich (43) in the horizontal direction by a bearing on the floor (3) formed sealing lip (48). Combination according to one or more of the preceding claims or in particular according thereto, characterized in that the wipe (4), preferably in addition to the support by negative pressure, by mechanical means to the vacuum cleaner nozzle (2) is supported. Combination according to one or more of the preceding claims or in particular according thereto, characterized in that the support flow duct branch (40) is separated from the suction duct (39) by a filter-like separating means (47). Combination according to one or more of the preceding claims or in particular according thereto, characterized in that the sealing lip (48, 48 ') is formed umschlagbar by the movement, wherein in a direction of travel (r) of the envelope section of a sealing lip (48, 48') the associated Suction orifice of Bodenensaugbereiches (43, 43 ') closes, while in the same direction of travel, the other sealing lip (48, 48') acts only separating the wiper (4). Combination according to one or more of the preceding claims or in particular according thereto, characterized in that when lifting a support of the vacuum cleaner nozzle (2) on the floor (3), a vacuum is increased with respect to the wipe cloth holder. Combination according to one or more of the preceding claims or in particular according thereto, characterized in that the suction nozzle (2) with inserted structural part (14) and held wiper cloth (4) in the front region suction openings (13). Wiping cloth (4) for suction attachment to a vacuum cleaner nozzle (2), characterized by a sealing layer (22). Wipe according to claim 10 or in particular according thereto, characterized in that the sealing layer (22) is airtight. Wipe according to one or more of claims 10 to 11, characterized in that the wipe (4) is provided at least in a partial region of at least one peripheral edge with a fixing portion (32). Method for the wet cleaning of floors (3), wherein a wiper (4) held on a suction nozzle (2) of a vacuum cleaner (1) is provided and at the same time an extraction takes place by means of one or more suction openings (13) kept free. A method according to claim 13 or in particular according thereto, characterized in that the cleaning is carried out by means of a wet wipe and the suction takes place outside the moisturization of the floor (3). Method according to one or more of claims 13 to 14 or in particular according thereto, characterized in that with respect to a usual direction of travel (r) of the vacuum cleaner nozzle (2) in front of and behind the wipe (4) a bottom suction is provided, wherein depending on the direction of travel ( r) an exhaust port is deactivated while the other exhaust port is activated.

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