KR20230116025A - Enables air flow at the location of the cleaning area of the agitator of the suction head - Google Patents

Abstract

An agitator (20) is configured to be rotatably arranged in the suction head (1) of the vacuum cleaner, and a flexible cleaning element (22) arranged on the core element (21) for contacting the surface to be cleaned (2). include them The cleaning elements 22 are arranged along the length of the agitator 20 in a cleaning area 23 , wherein the cleaning area 23 has an inner edge of the cleaning area 23 defining at least one air passage 26 ( It is interrupted by at least one air passage 26 configured to allow air flow between 23a, 23b). Outside of the at least one air passage 26, the cleaning elements 22 are arranged in close proximity to each other, so that air flow between the cleaning elements 22 is disabled or at most at least one air passage 26. This is possible to a significantly smaller extent than at the location of passage 26 .

Description

Enabling air flow at the location of the cleaning area of the agitator of the suction head

The present invention relates to an agitator adapted for use with a suction head adapted to be applied to a vacuum cleaner and configured to perform a cleaning action on a surface when in a cleaning operating position relative to the surface, the agitator rotatably within the suction head configured to be arranged and comprising a core element and flexible cleaning elements arranged on the core element, wherein when the agitator is arranged in the suction head and the suction head is arranged in the cleaning operating position, an outer portion of each cleaning element is disposed on each of the agitator. The cleaning elements are arranged along the length of the agitator in the cleaning zone, configured to be moved over the surface during part of the rotation.

The present invention also relates to a suction head applied to a vacuum cleaner and configured to perform a cleaning action on a surface when in a cleaning operating position relative to the surface, the suction head enabling coupling to an air suction source of the vacuum cleaner. a housing comprising a coupling section configured to make the agitator as described, the agitator arranged within the housing, the housing configured to expose a portion of the agitator to a surface, the agitator extending in the direction of the longitudinal axis of the core element It is rotatable within the housing about an axis of rotation that is

In a further aspect, the present invention also relates to a vacuum cleaner comprising an air suction source and a suction head as mentioned. In a still further aspect, the present invention also relates to a vacuum cleaner comprising an air suction source as mentioned and an agitator.

In the field of suction heads designed to be applied in vacuum cleaners, it is known to take measures aimed at restricting the air flow to the agglomerates during operation. It is true that by impeding the air flow in certain zones, higher air velocities can be obtained in the remaining unobstructed zones. This is advantageous in light of the fact that air velocity is an important factor in keeping dust particles in the air and transporting them to the dust storage unit.

For example, suction heads are known in which the front edge is designed in a triangular zigzag pattern. At the location of the openings between the triangles, air flow is enabled during operation, but the rest of the suction head is closed so that a high air velocity can be obtained at the location of the openings. The lead angle of the triangles causes dust particles to accumulate towards the aperture, and in this respect the triangles act like funnels. However, the air velocity in front of the triangles is quite low, which results in poor cleaning in front of the suction head. It is noteworthy that not all dust particles are removed, especially when the front of the suction head is pushed against an object such as a plinth.

In the case of a suction head comprising an agitator which is rotated during operation and which supports a tuft of fibre-like cleaning elements, it is possible to have an open structure of the pattern of cleaning elements, in which case the loss of air velocity Some flow limiting geometry at the front of the suction head is necessary to avoid this. Alternatively, it is possible to have a dense structure of the pattern of cleaning elements, so that the use of flow restricting geometry in front of the suction head can be avoided. In that case, the agitator is directly in front of the suction head, which results in a compact structure of the suction head and allows the agitator to be pushed against objects. A drawback of this possibility is the lack of air flow in front of the suction head, so that when the suction head is pushed against an object the dust particles will stay in a position in front of the suction head, i.e. where the agitator cannot reach.

It is an object of the present invention to have the suction head remove dust particles that may still be present in front of the suction head, while omitting the flow-restricting geometry at the front of the suction head and relying on the compact structure of the pattern of cleaning elements on the agitator of the suction head. It is to give you the possibility to do it.

In view of the foregoing, the present invention provides an agitator 20 adapted to be applied to a vacuum cleaner and adapted to be used with a suction head configured to perform a cleaning action on a surface when in a cleaning operating position relative to the surface, wherein the agitator is configured to be rotatably arranged in the suction head and includes a core element and flexible cleaning elements arranged on the core element,

an outer portion of each cleaning element is configured to be moved over the surface during a portion of each rotation of the agitator when the agitator is arranged in the suction head and the suction head is in a cleaning operating position;

The cleaning elements are arranged along the length of the agitator within a cleaning zone, the cleaning zone being interrupted by at least one air passageway configured to enable air flow between inner edges of the cleaning zone defining at least one air passageway. become,

Outside the at least one air passage, the cleaning elements are arranged in close proximity to each other, such that air flow between the cleaning elements is disabled or at most possible to a significantly lesser degree than at the location of the at least one air passage. will do In the context of the present invention, it may be practical for the cleaning area to span a major part of the core element in a circumferential direction around the core element, optionally spanning or nearly spanning the entire periphery of the core element. Generally, the term "major portion" can be understood to mean a portion greater than 50%. Preferably, the cleaning area spans at least two-thirds of the core element in a circumferential direction around the core element. Other options include portions greater than 70% or greater than 80%.

The present invention also relates to a suction head adapted to be applied to a vacuum cleaner and configured to perform a cleaning action on a surface when in a cleaning operating position relative to the surface, the suction head enabling coupling of the vacuum cleaner to an air suction source. a housing comprising a coupling region configured to: rotatable within the housing about an axis of rotation, wherein the agitator is directed from a position on the surface upstream of the agitator when the suction head is in the cleaning operating position toward a bonding area of the housing at a location of the at least one air passage in the cleaning area of the agitator. configured to enable air flow through the agitator, the agitator in a direction from a location on the surface upstream of the agitator to a location outside of the at least one air passage toward the coupling region of the housing when the suction head is in the cleaning operating position. It is configured to disable or, at most, to a significantly lesser extent, air flow through the agitator.

An alternative definition of the suction head according to the present invention is also as follows: a suction head configured to be applied to a vacuum cleaner and to perform a cleaning action on a surface when in a cleaning operating position relative to the surface, the suction head comprising a vacuum a housing comprising a coupling section configured to enable coupling of the vacuum cleaner to an air intake source, and an agitator having a core element and a flexible cleaning element arranged on the core element, the agitator being arranged within the housing; The housing is configured to expose a portion of the agitator to the surface, the agitator is rotatable within the housing about an axis of rotation extending in the direction of the longitudinal axis of the core element, and the outer portion of each cleaning element is configured so that the suction head performs a cleaning operation. configured to move over the surface during a portion of each rotation of the agitator when in position, the cleaning elements being arranged along the length of the agitator within a cleaning zone, the cleaning zone being disposed on a surface upstream of the agitator when the suction head is in the cleaning operating position. and outside the at least one air passage, the cleaning elements are arranged in close proximity to each other, so that the suction head performs a cleaning operation. When in position, air flow through the agitator in a direction from a location on the surface upstream of the agitator towards the coupling region of the housing is disabled or, at most, is enabled to a significantly lesser extent than at a location on the at least one air passage.

In particular, the air flow referred to in the context of the present invention may be an air flow that can be induced under the influence of the suction force normally associated with the operation of the vacuum cleaner, ie normally induced by the air suction source of the vacuum cleaner.

From the foregoing, according to the present invention the cleaning area in which the cleaning elements of the agitator are arranged is interrupted by at least one air passage configured to enable air flow between the edges inside the cleaning area defining the at least one air passage. It is clear that it will be In this way, both the advantage of having the cleaning area packed with cleaning elements on the one hand and the advantage of having the air flow through the agitator from a location on the surface upstream of the agitator, i. What is obtained is achieved. As already explained in the background section, having the cleaning area packed with cleaning elements allows a configuration of the suction head that does not necessarily use a flow restricting geometry such as a zigzag shape. This means that the forward cleaning and reachability of the stirrer can be improved in the case of the present invention. Having an air flow through the agitator from a location on the surface upstream of the agitator constitutes an additional contribution to good front cleaning. Moreover, the application of the present invention does not entail any complex structural requirements. In practice, during operation of the suction head, i.e. when the agitator is rotated and the suction head is coupled to an active air suction source, a local air flow is created so that one or more air passages exist within the suction area where dust particles are sucked in. It becomes sufficient to realize the appearance of an agitator in which the zone is interrupted. The suction head can have a compact design and can be small compared to conventional suction heads, which is advantageous in reach and agility of the suction head.

Regarding the at least one air passage, note that the at least one air passage has no cleaning elements or the at least one air passage is provided with cleaning elements but with a significantly lower packing density than the cleaning area. Importantly, the presence of air passages on the agitator enables local air flows at confined locations within the cleaning area, which local air flows at locations in the cleaning area that are outside of at least one air passage. If present, it is significantly greater than, or (almost) practically infinitely greater than the latter local air flow. The present invention also addresses the possibility that the at least one air passage includes elements other than the cleaning elements, for example (similar) elements of shorter radial dimension. The advantage of this possibility is of an aesthetic nature: the stirrer does not necessarily have to have an appearance that involves covering the bare parts in this way. The other elements may be packed with the same or similar packing density as that of the cleaning elements.

Taking into account the intended rotational movement of the agitator, it is practical for the at least one air passage to extend circumferentially around the core element, where this may be the case for the at least one air passage to span the entire periphery of the core element. The orientation of the air passages on the agitator may be such that at least one air passage extends perpendicular to the longitudinal axis of the core element. In that way, it is possible to obtain an unobstructed air flow between the agitator and the surface when the suction head is in the cleaning operating position.

Regarding the cleaning elements of the agitator, it is noted that the cleaning elements may contain fibrous hairs and the linear mass density of the cleaning elements is less than 300 g per 10 km, preferably less than 250 g per 10 km. A practical example of arrangement of the fiber hairs on a core element is the arrangement of the fiber hairs into a tuft. In this regard, the packing density of the cleaning elements in the cleaning area outside the at least one air passage may be 30 or more tufts per area of 1 cm x 1 cm (here, the number of cleaning elements per tuft may be 500 or more). , ie more than 15,000 cleaning elements per area of 1 cm to 1 cm, which does not change the fact that other values may be applicable within the framework of the present invention as well. A practical example of the material of the cleaning elements is nylon.

The ball invention deals with an embodiment of an agitator comprising at least one agitator element in addition to the cleaning elements, wherein the at least one agitator element is substantially less flexible than the cleaning elements, and wherein the at least one agitator element is The outer portion is configured to move over the surface during a portion of each rotation of the agitator when the suction head is in the cleaning operating position. In particular, such one or more agitator elements may have the function of mechanically cleaning a surface, scraping dirt from a surface, agitating a carpet pile if the surface is carpeted, etc., whereas the cleaning elements on the one hand It blocks/obstructs the air flow but on the other hand it is suitable for entraining dust particles and agitating fine dust. At least one agitator element may be mounted on the agitator in any suitable manner. For example, it may be practical for at least one agitator element to be arranged on at least one strip-shaped body, and for at least one strip-shaped body to be arranged to spiral around the core element at the location of the outer part of the cleaning elements. there is. It may be advantageous for at least one agitator element to span the length of the cleaning zone. Practical examples of the material of the at least one agitator element are nylon and rubber.

Regarding the housing of the suction head, it may be practical for the housing to include a cover that partially covers the agitator along the length of the agitator, where the portion of the agitator exposed to the surface may be of only a minimal size. Note that

The foregoing and other aspects of the present invention will become apparent from, and will be explained with reference to, the following detailed description of a practical embodiment of a suction head comprising a housing and an agitator arranged within the housing.

The invention will now be described in more detail with reference to the drawings, in which identical or similar parts are designated by like reference numerals.
1 schematically shows a perspective view of a suction head according to an embodiment of the present invention comprising a housing and an agitator (arranged within the housing) according to an embodiment of the present invention.
2 schematically shows a side view of the suction head.
In both figures, the cover, which is part of the housing of the suction head, is shown translucent.

1 schematically shows a perspective view of a suction head 1 according to an embodiment of the present invention, and FIG. 2 schematically shows a side view of the suction head 1 .

The suction head 1 is adapted to be applied to a vacuum cleaner and configured to perform a cleaning action on the surface 2 when the suction head 1 is in a cleaning operating position relative to the surface 2 as shown in the figures. do. The vacuum cleaner may be a so-called dry vacuum cleaner or vacuum cleaner which can at least be operated in a dry mode, ie a mode in which the cleaning action is carried out under dry conditions without supply of any cleaning fluid. Generally, in the art, the suction head 1 is also commonly referred to as a nozzle.

The suction head 1 comprises a housing 10 and an agitator 20 arranged within the housing 10 . The housing 10 is configured to be coupled to an air intake source of a vacuum cleaner at a position of a coupling section 11 including an air intake passage 12 . The housing 10 also includes a cover 13 that partially covers the agitator 20 in close range along the length of the agitator 20, wherein the housing 10 has only a portion of the agitator 20 on the surface 2 ) exposed to

The agitator 20 comprises a core element 21 and flexible cleaning elements 22 arranged on the core element 21 . An agitator 20 of this type is also commonly referred to as a brush. In addition, the stirrer 20 is rotatable within the housing 10 about a rotational axis R extending in the direction of the longitudinal axis of the core element 21, and the outer portion of each cleaning element 22 is a suction head It is configured to move over the surface 2 during a portion of each rotation of the agitator 20 when 1 is in the cleaning operating position. As can be seen in FIG. 1 , cleaning elements 22 are arranged along the length of agitator 20 within cleaning area 23 . In the example shown, the cleaning area 23 spans the entire periphery of the core element 21 . In these figures, the individual cleaning elements 22 cannot be distinguished, but this does not change the fact that cleaning elements 22 are clearly marked where they are.

In the illustrated example, agitator 20 includes agitator elements 24 in addition to cleaning elements 22 . As in the case of the cleaning elements 22, the outer portion of each agitator element 24 moves over the surface 2 during a portion of each rotation of the agitator 20 when the suction head 1 is in the cleaning operating position. configured to move. However, the agitator elements 24 are significantly less flexible than the cleaning elements 22 . With this in mind, the agitator elements 24 are suitable for mechanically cleaning the surface 2, scraping dirt from the surface 2, agitating carpet fluff if the surface 2 is carpet, etc., but cleaning elements ( 22) are suitable for agitating fine dust on the surface 2 and also entraining dust particles. These figures are arranged to spiral around the core element 21 at the location of the outer parts of the cleaning elements 22, extend along the length of the cleaning area 23, and multiple A practical option is illustrated in which the stirrer elements 24 are arranged on a strip-shaped body 25 which is fixed on the core element 21 at an appropriate position of the . In these figures, the individual agitator elements 24 cannot be distinguished, but this does not change the fact that it is clear where the agitator elements 24 are, ie on the strip-shaped body 25 .

Given the difference in flexibility, agitator element 24 can be described as being hard and cleaning element 22 can be described as being soft. A suction head (1) comprising an agitator (20) with two types of elements (22, 24) is suitable for cleaning any type of surface (2) and is a dual purpose hard and soft floor nozzle. can indicate

Regarding the cleaning elements 22, the following aspect is noted. The cleaning elements 22 are arranged in close proximity to each other, whereby the agitator 20 from a position 2a on the surface 2 upstream of the agitator 20 in the direction towards the coupling region 11 of the housing 10. ) is disabled or at least obstructed when the suction head 1 is in the cleaning operating position. In FIG. 1, obstructed/impeded air flow is indicated by curved arrows, and in FIG. 2 intake is indicated by straight arrows. For example, a situation where the cleaning elements 22 are blocking/impeding the air flow between them is especially so if the linear mass density of the cleaning elements 22 is 300 per 10 km so that the cleaning elements 22 are very flexible. When selected to be less than g, it may be the result of applying the cleaning elements 22 within the agitator 20 in the form of fiber hairs. Such fiber hairs can in fact be arranged on the core element 21 in a dense arrangement to interact with and clean the surface 2 very effectively, where the packing density of the fiber hairs is 1 cm x 1 cm. It may be arranged to be 15,000 or more fiber hairs per area and it may be practical for the fiber hairs to be arranged in tufts. A practical example of the speed at which the agitator 20 rotates during operation of the suction head 1 is 4,200 rpm.

Blocking/obstructing the air flow entails the advantageous effect of efficiently using the suction power at the very location where the suction head 1 is on the surface 2, but the suction head 1 is located in front of the suction head 1. It also entails the effect that dust particles become impossible to remove when they can be present in the in-zone, i.e. at a position 2a on the surface 2 upstream of the agitator 20 in the air intake direction, which effect is accompanied by the suction head It becomes even more unfavorable if the zone becomes the zone right next to an object such as a headstone so that (1) cannot be placed on such zone. Taking this into account, the agitator 20 is designed to have a segmented appearance, wherein the cleaning area 23 is directed toward the coupling area 11 of the housing 10 when the suction head 1 is in the cleaning operating position. is interrupted by at least one air passage 26 configured to allow air flow through the agitator 20 from a location 2a on the surface 2 upstream of the agitator 20 . Thus, from the point of view of the agitator 20, it has at least one air passage ( 26) is composed. In the illustrated example, as can be seen in FIG. 1, the number of air passages 26 is four, and the local air flow allowed at the location of these air passages 26 is indicated by straight arrows in this figure. Also in the illustrated example, each air passage 26 spans the entire periphery of the core element 21 and extends perpendicular to the longitudinal axis of the core element 21 .

From the foregoing it is clear that the cleaning elements 22 span the entire periphery of the core element 21 but not the entire length of the core element 21 . The agitator 20 is provided with intermediate zones, which are free of the dense array of cleaning elements 22 so that openings for air flow are created. As a result, the suction head 1 is eventually enabled to remove dust particles from the front. At the location of the air passages 26, coarse dust and larger particles are also allowed to pass through the agitator 20 in a direction towards the bonding area 11 of the housing 10, and to the headstones, crevices and legs of furniture. Dust particles in/near the same intractable area become airborne and can be inhaled. The number and size of the air passages 26 can be selected such that the advantageous effect of the compact arrangement of the cleaning elements 22 in the cleaning area 23 on the efficiency of use of suction power is only compromised to an acceptable extent. In other words, the number and size of the air passages 26 is focused on and targeted local air while providing optimal underpressure inside the suction head 1 so that dust particles can be sucked from crevices and carpets. By creating a flow, it can be selected such that an air velocity sufficient to enable particle pick-up can be obtained. In this regard, considering the usual dimensions of the suction head 1, three or four may be a suitable number. A practical example of the dimensions of the air passages 26 is in the range of 6 mm to 8 mm in relation to the length of the air passages 26, and the same range in relation to the radial depth of the air passages 26, in this case the suction Zones with dimensions ranging from 6 x 6 mm to 8 x 8 mm are available on the surface 2 at the location of the air passages 26 when the head 1 is in the cleaning operating position.

It will be apparent to those skilled in the art that the scope of this invention is not limited to the examples discussed in the foregoing, but that several amendments and modifications thereof are possible without departing from the scope of this invention as defined in the appended claims. It is intended that this invention be interpreted as including all such amendments and amendments as they fall within the scope of the claims or their equivalents. While the invention has been illustrated and described in detail in the drawings and description, such illustration and description are to be regarded as illustrative or illustrative only and not restrictive. The present invention is not limited to the disclosed embodiments. The drawings are schematic, wherein details not required for an understanding of the invention may have been omitted and may not necessarily be drawn to scale.

Variations to the disclosed embodiments may be understood and attained by those skilled in the art in practicing the claimed invention from a study of the drawings, description and appended claims. In the claims, the word "comprising" does not exclude other steps or elements, and the singular form (the indefinite article "a" or "an") does not exclude the plural. Any reference signs in the claims should not be construed as limiting the scope of the invention.

Elements and aspects discussed for or in connection with a particular embodiment may be suitably combined with elements and aspects of other embodiments, unless expressly stated otherwise. Thus, the mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

As used herein, the terms “comprise” and “have” will be understood by those skilled in the art as encompassing the term “consist of”. Thus, the terms "comprise" or "comprising" can mean "consist of" with respect to one embodiment, but "contains at least a defined species and optionally one or more other species" in another embodiment. It can mean "to have/to have/to have".

Notable aspects of the present invention are summarized as follows. The agitator 20 is configured to be rotatably arranged in the suction head 1 of the vacuum cleaner and comprises a core element 21 and flexible cleaning elements 22 arranged on the core element 21 . The outer part of each cleaning element 22 is the agitator 20 arranged in the suction head 1 and when the suction head 1 is in the cleaning operating position relative to the surface 2, each of the agitator 20 It is configured to be moved over the surface 2 to be cleaned during a portion of the rotation of the . Generally, the cleaning elements 22 serve to touch the surface 2 . The cleaning elements 22 are arranged along the length of the agitator 20 in a cleaning area 23 , wherein the cleaning area 23 has an inner edge of the cleaning area 23 defining at least one air passage 26 ( It is interrupted by at least one air passage 26 configured to allow air flow between 23a, 23b). Outside the at least one air passage 26, the cleaning elements 22 are arranged in close proximity to each other, so that air flow between the cleaning elements 22 is not possible or at most the at least one air passage 26 ) is possible to a considerably smaller extent than at the location of

Claims (15)

An agitator (20) configured to be applied to a vacuum cleaner and used with a suction head (1) configured to perform a cleaning action on a surface (2) when in a cleaning operating position relative to the surface (2), comprising:
the agitator (20) is configured to be rotatably arranged within the suction head (1) and comprises a core element (21) and flexible cleaning elements (22) arranged on the core element (21),
The outer part of each of the cleaning elements 22 is arranged in the suction head 1 and when the suction head 1 is in the cleaning operating position, each of the agitator 20 configured to be moved over the surface (2) during a portion of the rotation of
the cleaning elements (22) are arranged along the length of the agitator (20) in a cleaning area (23);
the cleaning area 23 spans a major part of the core element 21 in a circumferential direction around the core element 21;
The cleaning area 23 is configured to allow air flow between the inner edges 23a, 23b of the cleaning area 23 defining at least one air passage 26 ( 26) is interrupted by
Outside of the at least one air passage 26, the cleaning elements 22 are arranged in close proximity to each other, so that air flow between the cleaning elements 22 is not possible or at most the at least one of the air passages 26. The agitator (20), which is possible to a significantly smaller extent than at the location of the air passage (26). 2. The method of claim 1, wherein the at least one air passage (26) does not have the cleaning elements (22), or the at least one air passage (26) is equipped with the cleaning elements (22) but the cleaning area (23). ), provided with a significantly lower packing density than the agitator (20). 3. The agitator (20) according to claim 1 or 2, wherein the at least one air passage is provided with elements extending from the core element (21) along a shorter radial distance than the cleaning elements (22). . 4. The agitator (20) according to any one of claims 1 to 3, wherein the at least one air passage (26) extends in the circumferential direction around the core element (21). 5. The agitator (20) according to claim 4, wherein the at least one air passage (26) extends perpendicular to the longitudinal axis of the core element (21). 6. The agitator (20) according to claim 4 or 5, wherein the at least one air passage (26) spans the entire periphery of the core element (21). 7. The agitator (20) according to any one of claims 1 to 6, wherein the cleaning area (23) spans the entire periphery of the core element (21). 8. The agitator (20) according to any one of claims 1 to 7, wherein the cleaning elements (22) comprise fibrous hairs and the linear mass density of the cleaning elements (22) is less than 300 g per 10 km. 9. The agitator (20) according to any one of claims 1 to 8, wherein the cleaning elements (22) are arranged in tufts on the core element (21). 10. The method of claim 9, wherein the packing density of the cleaning elements (22) in the cleaning area (23) outside the at least one air passage (26) is greater than 15,000 cleaning elements (22) per area of 1 cm x 1 cm. lifted, agitator (20). 11. The method according to any one of claims 1 to 10, wherein the agitator comprises at least one agitator element (24) in addition to the cleaning elements (22), said at least one agitator element (24) for cleaning elements 22, the outer part of the at least one agitator element 24 is such that the agitator 20 is arranged in the suction head 1 and the suction head 1 is used for the cleaning operation. An agitator (20) configured to be moved over the surface (2) during a portion of each rotation of the agitator (20) when in position. 12. The method according to claim 11, wherein said at least one agitator element (24) is arranged on at least one strip-shaped body (25), said at least one strip-shaped body (25) being an external part of said cleaning elements (22). agitators (20), which are spirally arranged around the core element (21) at their positions. A suction head (1) configured to be applied to a vacuum cleaner and to perform a cleaning action on a surface (2) when in a cleaning operating position relative to the surface (2), the suction head (1) comprising:
a housing (10) comprising a coupling section (11) configured to allow coupling of the vacuum cleaner to an air suction source; and
Comprising an agitator (20) according to any one of claims 1 to 12,
the agitator (20) is arranged within the housing (10), the housing (10) being configured to expose a portion of the agitator (20) to the surface (2);
The stirrer 20 is rotatable within the housing 10 around a rotation axis R extending in the direction of the longitudinal axis of the core element 21,
The agitator 20 cleans the cleaning area 23 of the agitator 20 from a position 2a on the surface 2 upstream of the agitator 20 when the suction head 1 is in the cleaning operating position. configured to enable air flow through the agitator (20) in a direction towards the coupling region (11) of the housing (10) at a location of at least one air passage (26) within the housing;
The agitator 20 is external to the at least one air passage 26 from a position 2a on the surface 2 upstream of the agitator 20 when the suction head 1 is in the cleaning operating position. a suction head (1), configured to disable or, at most, to a significantly lesser degree, an air flow through the agitator (20) in a direction towards the coupling section (11) of the housing (10) in the position in which it is located. . A vacuum cleaner comprising a suction head (1) according to claim 13 and an air suction source. A vacuum cleaner comprising an agitator (20) according to any one of claims 1 to 12 and an air suction source.

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