Abstract: The present invention relates to a nozzle (1) for a vacuum cleaner. The nozzle (1) has a base (3) having an edge (4, 5) and a suction aperture (11) in the base (3). At least one flexible flap (24, 26) protrudes from the base (3) between the edge (4, 5) and the suction aperture (11). The flexible flap (24, 26) has first and second sections (32, 33) separable by an opening (35). The first and second sections (32, 33) are urged towards each other when the nozzle (1) is moved in a first direction in which the edge (4, 5) is a leading edge to close the opening (35) or tend the opening (35) towards closure, and the first and second sections (32, 33) are biased away from each other when the nozzle (1) is moved in a second direction in which the edge (4, 5) is a trailing edge to open the opening (35) or to further open the opening. The present invention also relates to a vacuum cleaner comprising a nozzle (1) for a vacuum cleaner.

Abstract: Drive coupling assembly (50) for a high-speed rotating brush, comprising:—a coupling head (100) having a coupling head rotation axis (Lch) and including three drive surfaces (106) which are arranged to be rotationally symmetrical through 120° with respect to said coupling head rotation axis; and—a coupling member (200), having a coupling member rotation axis (Lcm) and including three first drive surfaces (210a) which are arranged to be rotationally symmetrical through 120° with respect to said coupling member rotation axis, wherein said coupling head (100) and said coupling member (200) are detachably couplable, such that, in a coupled condition, their rotational axes (Lch, Lcm) are aligned and the coupling head is rotatable to drive each of its drive surfaces (106) in contact with a respective first drive surface (210a) of the coupling member, to thereby exert both a torque and an axially directed force on the coupling member.

Abstract: The present application relates to a nozzle for a vacuum cleaner. The nozzle comprises a body (2) and a base (3). The base (3) has a longitudinal axis, and at least two cleaning sides (17, 18) configured to act on a surface in respective cleaning conditions. The base (3) is rotatable around a rotational axis (A-A) that is parallel to the longitudinal axis of the base to move the base (3) between the respective cleaning conditions.

Abstract: A vacuum cleaner (1) comprises an inlet (13), an outlet, a fan (14) for creating a flow of air through the vacuum cleaner (1) by drawing air to be cleaned through the inlet (13) into the vacuum cleaner (1) and by exhausting air through the outlet outwardly of the vacuum cleaner (1) and a separator (15, 41). The separator (15, 41) is rotatably arranged around an rotation axis (21), for creating, during use, a column of rotating air to separate at least a portion of the airborne particles (10) from the flow of air. The separator (15, 41) includes a number of vanes (25, 44) for the creation of the column of rotating air, wherein each vane (25, 44) is provided with a leading face (26) and a trailing face (27). The leading faces (26) of the vanes (25, 44) are inclined with respect to the rotation axis (21) for conveying the airborne particles (10) at least in an axial direction.

Abstract: The present invention relates to a nozzle (1) for a vacuum cleaner. The nozzle (1) has a base (3) having an edge (4, 5) and a suction aperture (11) in the base (3). At least one flexible flap (24, 26) protrudes from the base (3) between the edge (4, 5) and the suction aperture (11). The flexible flap (24, 26) has first and second sections (32, 33) separable by an opening (35). The first and second sections (32, 33) are urged towards each other when the nozzle (1) is moved in a first direction in which the edge (4, 5) is a leading edge to close the opening (35) or tend the opening (35) towards closure, and the first and second sections (32, 33) are biased away from each other when the nozzle (1) is moved in a second direction in which the edge (4, 5) is a trailing edge to open the opening (35) or to further open the opening. The present invention also relates to a vacuum cleaner comprising a nozzle (1) for a vacuum cleaner.

Abstract: The present application relates to a nozzle for a vacuum cleaner. The nozzle comprises a body (2) and a base (3). The base (3) has a longitudinal axis, and at least two cleaning sides (17, 18) configured to act on a surface in respective cleaning conditions. The base (3) is rotatable around a rotational axis (A-A) that is parallel to the longitudinal axis of the base to move the base (3) between the respective cleaning conditions.

Abstract: In a method of monitoring pollution of an air filter (Filt1) in a device in which an air flow (A) generated by a fan (F) engaged by a motor (M) passes the air filter (Filt1), the pollution is determined using data representative of a pressure difference (D2) over the fan (F), a pressure difference (D1) over the air filter, and a motor current (I) to the motor (M). The method comprises the steps of: estimating a flow through the air filter from data representative of the pressure difference (D2) over the fan (F), and the motor current (I) to the motor (M), estimating a filter resistance of the air filter from data representative of the flow through the air filter, and the pressure difference (D1) over the air filter, and estimating the pollution of the air filter from data representative of the filter resistance of the air filter.

Abstract: The present application relates to a vacuum cleaner head (2). The vacuum cleaner head (2) has a base (10) and a suction opening (8) in the base (10). An array (35) of flexible flaps (40) protrude from the base (10). The flexible flaps (40) are configured to act on a surface to be cleaned. The flexible flaps (40) are spaced from each other to allow the passage of detritus therebetween in a predefined arrangement. The predefined arrangement of the flexible flaps (40) is configured to promote a non-linear flow path through the array (35) of flexible flaps (40) between an end of the base (15, 16) and the suction opening (8). A gap (39) between first and second rows (36, 37) of flaps (40) is substantially equal to or greater than a space (43) between adjacent flexible flaps (40) in each of the first and second rows. The present application also relates to a vacuum cleaner (1) comprising a vacuum cleaner head (2).

Abstract: A device for performing an action on a surface comprises at least one movably arranged functional body (21, 22), driving means for driving the functional body (21, 22), main safety means for decoupling the driving means from the functional body (21, 22) when a load exerted by the functional body (21, 22) in the direction of the driving means under the influence of resistance forces experienced by the functional body (21, 22) exceeds a predetermined maximum value, and additional safety means (40) which are movably arranged in the vicinity of the functional body (21, 22), and which are capable of exerting loads on the main safety means to different extents in different positions, at a side of the main safety means associated with the functional body (21, 22). The additional safety means may comprise a bar (40) having a non-circular cross-sectional area, which is rotatable about its longitudinal axis (41).

Abstract: The invention relates to a cleaning device (1) for removing particles from a surface (11). Thereto the device sprays droplets (200) of a fluid (201) into a space (213). The droplets (200) are expelled from a rotatable brush (3) as a mist of droplets. Air carrying dirt particles (202) is exposed to the mist, whereby dirt particles coalesce with droplets in the mist in the space (213). The coalesced particles (22) are conveyed to a cleansing unit (14) to be separated from the air. Finally, clean air exits from the device (1).

Abstract: A vacuum cleaner (1, 21, 41, 51) for dry dust comprises at least a dust chamber (3, 23, 43, 53) and a fan unit(13, 63), which dust chamber (3, 23, 43, 53) is provided with an air inlet opening (7, 27, 57) and an air outlet opening (8, 28) communicating with the fan unit (13, 63). The dust chamber (3, 23, 43, 53) comprises a movable body (9, 29, 59) for restricting air flow through the dust chamber (3, 23, 43, 53). In use the movable body (9, 29, 59) is located on dry dust collected in the dust chamber (3, 23, 43, 53) due to kinematic sorting between the movable body (9, 29, 59) and the dry dust.

Abstract: A unit (2) for pumping air containing particles (5) and separating the particles (5) from the air comprises a housing (10) having a space (20) for receiving and storing the particles (5), and an air pumping device (30) being arranged inside the housing (10) and comprising a basic fan (31) intended for pumping air out of the particle storage space (20), and another fan (32) intended for separating the particles (5) from the air. A gap (22) is present between the fan arrangement of the air pumping device (30) and the housing (10), and in order to avoid a flow of air containing particles (5) through the gap (22), at least a major portion of the basic fan (31) is uncovered, so that a relatively strong pumping action on the basis of an interaction of an outer surface of the basic fan (31) with a stationary wall is avoided.

Abstract: In a cleaning device, a head of the device in which a brush is arranged, can get contaminated by particles and/or droplets picked up by the brush during one or more cleaning actions. In order to clean the head, the cleaning device is placed on a tray filled with an amount of cleaning liquid, and the cleaning device is operated for a period of time. During that time, the head is flushed with the cleaning liquid, where the brush serves for picking up the liquid from the tray and releasing the liquid in the direction of components of the head. The tray has an elevated portion, and the brush is positioned on that elevated portion to allow for gradual wetting of the brush.

Abstract: Drive coupling assembly (50) for a high-speed rotating brush, comprising:—a coupling head (100) having a coupling head rotation axis (Lch) and including three drive surfaces (106) which are arranged to be rotationally symmetrical through 120° with respect to said coupling head rotation axis; and—a coupling member (200), having a coupling member rotation axis (Lcm) and including three first drive surfaces (210a) which are arranged to be rotationally symmetrical through 120° with respect to said coupling member rotation axis, wherein said coupling head (100) and said coupling member (200) are detachably couplable, such that, in a coupled condition, their rotational axes (Lch, Lcm) are aligned and the coupling head is rotatable to drive each of its drive surfaces (106) in contact with a respective first drive surface (210a) of the coupling member, to thereby exert both a torque and an axially directed force on the coupling member.

Abstract: A device for performing an action on a surface comprises at least one movably arranged functional body (21, 22), driving means for driving the functional body (21, 22), main safety means for decoupling the driving means from the functional body (21, 22) when a load exerted by the functional body (21, 22) in the direction of the driving means under the influence of resistance forces experienced by the functional body (21, 22) exceeds a predetermined maximum value, and additional safety means (40) which are movably arranged in the vicinity of the functional body (21, 22), and which are capable of exerting loads on the main safety means to different extents in different positions, at a side of the main safety means associated with the functional body (21, 22). The additional safety means may comprise a bar (40) having a non-circular cross-sectional area, which is rotatable about its longitudinal axis (41).

Abstract: A shaving apparatus having at least one cutting unit with an external cutting member and a rotatable internal cutting member each the external and internal cutting members having cooperating cutting edges forming bearing surfaces of a first bearing, and a second bearing with bearing surfaces. To minimize the friction between the cutting edges, a support device having visco-elastic properties is provided between the two bearings. During operation, the distance between the bearing surfaces of the first bearing adjusts to the distance between the bearing surfaces of the second bearing. During cutting of hairs, the support device behaves as a stiff element whereas during periods in which no hairs are cut, the support device behaves relatively soft so that the cutting gaps between the cutting edges are closed.

Abstract: In a cleaning device (2), a head (21) of the device (2), in which a brush (22, 23) is arranged, can get contaminated by particles and/or droplets picked up by the brush (22, 23) during one or more cleaning actions. In order to clean the head (21), the cleaning device (2) is placed on a tray (1), the tray (1) is filled with an amount of cleaning liquid, and the cleaning device (2) is operated for a period of time. During that time, the head (21) is flushed with the cleaning liquid, wherein the brush (22, 23) serves for picking up the liquid from the tray (1) and releasing the liquid in the direction of components of the head (21). The tray (1) comprises an elevated portion (3), and the brush (22, 23) is positioned on that portion (3), whereby it is achieved that the brush (22, 23) is gradually wetted.

Abstract: Disclosed is a brush assembly suitable for use in a wet floor cleaning device. The brush assembly comprises a brush that includes a hollow core. An inner surface of the core is compartmentalized into a number of compartments. An outer surface of the core is furnished with brush material, and the core is pierced with a number of outflow openings. The brush assembly further comprises a first fluid injector for injecting a fluid into the core, and a drive mechanism configured for rotating the brush around an axis. Also disclosed is a method for operating the brush assembly.

Abstract: A personal care system includes an electrical shaver and a cleaning device for cleaning a shaving head. The cleaning device further includes a displacing system for displacing its supporting member relative to a cleaning fluid container from a first position in which the shaving head, when the shaver is supported by the supporting member, is not in contact with the cleaning liquid in the container, to a second position in which the shaving head is at least partially immersed in the cleaning liquid in the container. The cleaning device does not need any pump for displacing the cleaning liquid. Rather, activation of the shaving head that causes, e.g., rotation of a cutting unit, provides a sufficient pumping effect for the cleaning liquid when the shaving head is immersed in the cleaning liquid.

Abstract: A shaving device includes cooperating hair cutting elements and a driver for driving the hair cutting elements. The shaving device is configured to allow for automatic contour following during its application on the skin of a user. At least one cutting element is pivotably arranged in the shaving device, wherein a pivot axis intersects at least one position where the cutting element is contacted by a driving member for imposing reciprocating movement on the cutting element.