Abstract: A cleaning device for cleaning a surface is described. The cleaning device includes at least one cleaning element and a wetting system to supply a cleaning liquid to the at least one cleaning element. The wetting system is operable in one of at least one normal operation mode and a boost operation mode involving an increased supply rate of the cleaning liquid with respect to the at least one normal operation mode. During start-up of the cleaning device in a wet cleaning mode thereof, a start-up operation mode of the wetting system is determined to be one of the normal operation mode or the boost operation mode on the basis of assessment of an actual value of at least one parameter that is indicative of whether or not the at least one cleaning element is in a wet cleaning condition.

Abstract: Provided is a cleaner head for a wet cleaning apparatus. The cleaner head has at least one cleaning liquid outlet through which cleaning liquid is deliverable. The cleaner head also has at least one dirt inlet for receiving dirty liquid from a surface to be cleaned. A porous material layer covers each of the at least one dirt inlet. A liquid pick-up region of the porous material layer is delimited by sealing attachment of the porous material layer around the at least one dirt inlet. The liquid pick-up region is arranged relative to each of the at least one cleaning liquid outlet such that the liquid pick-up region is bypassed by the cleaning liquid delivered towards the surface to be cleaned. Further provided is a wet cleaning apparatus comprising the cleaner head, and an attachable member for attaching to a wet cleaning apparatus.

Abstract: A cleaner head for a wet cleaning apparatus includes a portion for facing a surface to be cleaned, and a protruding element mounted adjacent the portion. The protruding element protrudes from the cleaner head in the direction of the surface to be cleaned. The cleaner head is permitted to be rocked on the protruding element to cause the portion to contact the surface to be cleaned. The protruding element includes a porous material. The cleaner head also includes at least one dirt inlet for receiving dirty liquid from the surface to be cleaned when suction is applied to the at least one dirt inlet. The porous material covers the at least one dirt inlet.

Abstract: A wet cleaning apparatus including a cleaner head and an underpressure generator arrangement, is described. The cleaner head has at least one dirt inlet, and a porous material covering the at least one dirt inlet. The underpressure generator arrangement includes an underpressure generator to provide a flow inside the wet cleaning apparatus for drawing fluid into the at least one dirt inlet through the porous material. The underpressure generator arrangement controls the flow based on a pressure on the inside of the wet cleaning apparatus between the porous material and the underpressure generator.

Abstract: Provided is a wet cleaning apparatus comprising a cleaner head. The cleaner head has at least one dirt inlet, and a porous material comprising a porous material layer sealingly attached to the at least one dirt inlet. The wet cleaning apparatus also comprises an underpressure generator arrangement comprising an underpressure generator. The underpressure generator has an underpressure generator outlet. The underpressure generator is activatable to provide a flow from the at least one dirt inlet to and through the underpressure generator outlet, and deactivatable to cease the flow. The underpressure generator arrangement is configured to restrict the passage of fluid from the underpressure generator outlet towards the at least one dirt inlet at least when the underpressure generator is deactivated. In another aspect, a cleaner head includes a valve assembly configured to restrict backflow towards a porous material layer sealingly attached to dirt inlet(s).

Abstract: A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dirty fluid channel (DFC) at the surface interaction layer (ML) for draining, by means of underpressure, dirty water from the surface (F) through the surface interaction layer (ML) being in contact with the surface (F).

Abstract: A cleaning head for a wet vacuum cleaner has first and second rotary brushes, each extending across a width of a housing. The housing includes a first projection extending inwardly into a space between the brushes and having a first guide channel creating an air cavity over a floor, and a second projection extending inwardly the space. The second projection has a second guide channel creating another cavity over the floor. These cavities promote lateral air flow into the space between the brushes and thereby reduce pooling of water.

Abstract: A brush, rotatably arranged in a cleaning device for cleaning surfaces, is described. The brush includes a core element and brush elements arranged on the core element. The brush elements are arranged in a bristle field extending in a direction of a longitudinal axis of the brush and in a peripheral direction about the longitudinal axis. Further, the brush elements include fiber hairs. Furthermore, a linear mass density of at least tip portions of the brush elements is lower than 15 g per 10 km. In addition, an average of a packing density of the brush elements in the bristle field is lower than 15,000 brush elements per 1 cm2 so as to ensure that for the purpose of moving the brush during a cleaning action, only a relatively small amount of energy is needed.

Abstract: A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dirty fluid channel (DFC) at the surface interaction layer (ML) for draining, by means of underpressure, dirty water from the surface (F) through the surface interaction layer (ML) being in contact with the surface (F).

Abstract: A cleaning device designed to clean a surface includes a cleaner nozzle to face the surface to be cleaned and to perform a cleaning action on the surface, where the cleaner nozzle accommodates at least one rotatably arranged brush including flexible brush elements having tip portions which are intended to contact the surface. The cleaning device includes a force-actuable mechanism that is responsive to a change of a user force on the cleaning device acting to press the cleaner nozzle against the surface when the cleaner nozzle is in an operational position on the surface, and that is functional to cause a change of a value of at least one parameter of operation of the cleaning device, thereby enabling more intuitive handling of the cleaning device by a user.

Abstract: A cleaning device for cleaning a surface is described. The cleaning device includes at least one cleaning element and a wetting system to supply a cleaning liquid to the at least one cleaning element. The wetting system is operable in one of at least one normal operation mode and a boost operation mode involving an increased supply rate of the cleaning liquid with respect to the at least one normal operation mode. During start-up of the cleaning device in a wet cleaning mode thereof, a start-up operation mode of the wetting system is determined to be one of the normal operation mode or the boost operation mode on the basis of assessment of an actual value of at least one parameter that is indicative of whether or not the at least one cleaning element is in a wet cleaning condition.

Abstract: The present invention relates to a body care system (100a-j) including a cooling device (10a-j) for a body care system (100a-j) comprising a brush unit (12) including a plurality of airflow generating structures, a connecting unit (16) for connecting the brush unit (12) to a driving unit (14), the driving unit (14) being configured to drive the brush unit (12) to rotate about a rotational axis (18) to generate an airflow by the rotation of the airflow generating structures, wherein the rotational axis (18) is substantially parallel to the surface of the body part, and a supplying unit arranged inside the brush unit (12) for supplying a cooling medium to the plurality of airflow generating structures of the brush unit (12) to evaporate the cooling medium by the generated airflow.

Abstract: The present invention relates to a body care system (100a-j) including a cooling device (10a-j) for a body care system (100a-j) comprising a brush unit (12) including a plurality of airflow generating structures, a connecting unit (16) for connecting the brush unit (12) to a driving unit (14), the driving unit (14) being configured to drive the brush unit (12) to rotate about a rotational axis (18) to generate an airflow by the rotation of the airflow generating structures, wherein the rotational axis (18) is substantially parallel to the surface of the body part, and a supplying unit arranged inside the brush unit (12) for supplying a cooling medium to the plurality of airflow generating structures of the brush unit (12) to evaporate the cooling medium by the generated airflow.

Abstract: A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dirty fluid channel (DFC) at the surface interaction layer (ML) for draining, by means of underpressure, dirty water from the surface (F) through the surface interaction layer (ML) being in contact with the surface (F).

Abstract: A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dirty fluid channel (DFC) at the surface interaction layer (ML) for draining, by means of underpressure, dirty water from the surface (F) through the surface interaction layer (ML) being in contact with the surface (F).

Abstract: In a vacuum cleaner nozzle (N) comprising one or more rear wheels (RW), a hinge (H3) is arranged to lift all one or more rear wheels (RW) from a floor (F) when a suction tube (ST) connected to the nozzle (N) is rotated around a longitudinal axis of the suction tube (ST), e.g. after the nozzle (N) has been rotated by more than 45° by means of a further hinge (H2) in order to position a relatively short side of the nozzle at the front of the nozzle in the nozzle's motion direction so that the nozzle is able to clean relatively small spaces that could not be entered if a relatively long side of the nozzle is at the front of the nozzle in the nozzle's motion direction. If the one or more rear wheels (RW) comprise at least two rear wheels, the hinge (H3) is arranged for simultaneously lifting the rear wheels (RW) from the floor (F).

Abstract: A vacuum cleaner utensil comprises a plurality of elements (Lx) flexibly mounted to a central area (C) to provide a suction opening at a side of the central area (C) corresponding to a current movement direction (MD) of the vacuum cleaner utensil out of a plurality of possible movement directions, while reducing a possibility for air to enter the central area (C) from a plurality of other directions. The central area (C) may rotate around its 5 center. The elements (Lx) may rotate with reference to respective axes (A) provided on the central area (C). The elements may be mounted to a single axis (Ac), and have a flexible first part having a first thickness, followed by a second part having a second thickness exceeding the first thickness, wherein—when pushed together as a result of movement—the second parts of neighboring elements (Lx) reduce a possibility for air to enter the central area (C) from 10 between the neighboring elements (Lx).

Abstract: A surface cleaning device comprises a brush (B) that is curved at least partially around a center part (CP) of the surface cleaning device, a deformability of the brush (B) determining a deformability of an outer circumference of the surface cleaning device. The brush (B) has a rotation axis (A), which is curved at least partially around the center part (CP) of the surface cleaning device. The rotation axis (A) is parallel to the surface. The brush (B) may be a donut-shaped brush (B) fully around the center part (CP) of the surface cleaning device. The surface cleaning device may have an electrical motor (M) for driving the brush (B). The center part (CP) may comprise a container (DC) for collecting dirt swept from the surface by the brush (B). The center part (CP) may have an edge (E) for bending the brush (B), dirt being released from the brush (B) at an end of the edge (E) where the brush (B) is relaxed. The center part (CP) may have an upper rim (R) for keeping the brush (B) at its position.

Abstract: The present application relates to a vacuum cleaner head (10). The vacuum cleaner head (10) includes a housing (40) having a vacuum extraction zone (49), and first and second rollers (20, 30) configured to locate against a surface to be cleaned (60). Each of the first and second rollers (20, 30) is able to pick-up detritus from the surface to be cleaned (60) when they rotate and move over the surface (60) and to carry detritus to the vacuum extraction area (49) in the housing (40). In accordance with the present invention, the first roller (20) is rotatable when moved along the surface to be cleaned (60) in a first direction and restricted from rotating when moved in an opposing second direction. The second roller (30) is rotatable when moved along the surface to be cleaned (60) in the second direction and restricted from rotating when moved in the first direction. The present application also relates to a vacuum cleaner comprising the vacuum cleaner head (10).

Abstract: In a vacuum cleaner nozzle (N) comprising one or more rear wheels (RW), a hinge (H3) is arranged to lift all one or more rear wheels (RW) from a floor (F) when a suction tube (ST) connected to the nozzle (N) is rotated around a longitudinal axis of the suction tube (ST), e.g. after the nozzle (N) has been rotated by more than 45° by means of a further hinge (H2) in order to position a relatively short side of the nozzle at the front of the nozzle in the nozzle's motion direction so that the nozzle is able to clean relatively small spaces that could not be entered if a relatively long side of the nozzle is at the front of the nozzle in the nozzle's motion direction. If the one or more rear wheels (RW) comprise at least two rear wheels, the hinge (H3) is arranged for simultaneously lifting the rear wheels (RW) from the floor (F).