Vacuum cleaner nozzle with V-shaped front scraping element

Abstract

The cleaner nozzle (2) comprises a bottom surface (3) with a lower surface (4) and with a suction passage (5) emerging from the lower surface (4), and a front scraping member (13) arranged in front of a front edge of the suction passage (5) and at least partially defining a central passage opening (16) in fluid communication with the suction passage (5), the front scraping member (13) generally having a V-shape with an apex oriented towards a central part of the suction passage (5), the front scraping member (13) comprising a first scraping branch (14) extending in a first extension direction (De1) and a second scraping branch (15) extending in a second extension direction (De2), the first and second scraping branches (14, 15) being configured to direct dirt contacting the front scraping member (13) during a forward movement of the cleaner nozzle (2) towards the central passage opening (16).

Description

[Technical field]

[0001] The present invention relates to the field of vacuum cleaners, which are provided with a vacuum nozzle, also called suction head, making it possible to suck up dust and dirt present on the surface to be cleaned, such as for example tiles, parquet, laminates, etc. [Background technology]

[0002] European Patent Application Publication No. 3095369 discloses a vacuum cleaner nozzle having the following configuration. a bottom surface configured to be oriented towards the surface to be cleaned and with suction channels emerging on the bottom surface of the bottom surface; a front scraping member located in front of a leading edge of the suction path, the front scraping member having a generally V-shape with an apex directed towards a central part of the suction path, the front scraping member being elongated and including a first scraping branch extending in a first extension direction and a second scraping branch elongated and extending in a second extension direction.

[0003] The first and second scraping branches at least partially define a central passage opening that is fluidly connected to the suction path to enable suction of debris through the central passage opening and toward the suction path, and are configured to direct debris contacting the forward scraping member toward the central passage opening during forward movement of the vacuum cleaner nozzle.

[0004] The first and second extending directions are inclined relative to each other by an inclination angle of about 135°.

[0005] Such an inclination angle allows the large debris that comes into contact with the front scraping member during the forward movement of the vacuum nozzle to flow towards the central passage opening in terms of suction thereof and ensures a rapid movement of the large debris towards the central passage opening, thus ensuring a rapid and efficient suction of the large debris present on the surface to be cleaned.

[0006] However, with such a configuration of the front scraping member, when a large amount of large debris is present on the surface to be cleaned, the large debris is likely to accumulate at the central passage opening, which may impair the suction efficiency of the suction nozzle.

[0007] In order to overcome this drawback, it is conceivable to increase the width of the central passage opening. However, the presence of a large central passage opening induces suction loss in the suction path, which is disadvantageous for suctioning very small particles such as dust and flour on a hard floor surface.

[0008] Furthermore, such an inclination angle of the first and second extension directions has the disadvantage of giving the vacuum cleaner nozzle a large frontal bulk, which makes it difficult for such a vacuum cleaner nozzle to suck up dirt located along, for example, a wall or a pedestal. Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention aims to remedy these drawbacks. [Means for solving the problem]

[0010] The technical problem underlying the present invention is, in particular, to provide a vacuum cleaner nozzle that is simple and compact in structure yet capable of effectively sucking in dust particles and larger debris such as rice grains and lentils present on the surface to be cleaned.

[0011] To this end, the present invention relates to a vacuum cleaner nozzle comprising: a bottom surface, the bottom surface being configured to face the surface to be cleaned and having a suction channel formed on the bottom surface of the bottom surface; a front scraping member disposed in front of a leading edge of the suction path and defining at least a portion of a central passage opening in fluid communication with the suction path and enabling suction of dirt through the central passage opening in the direction of the suction path, the front scraping member having a generally V-shape with an apex facing a central portion of the suction path and including a first scraping branch which is elongated and extends in a first extension direction and a second scraping branch which is elongated and extends in a second extension direction, the first and second scraping branches being configured to direct dirt contacting the front scraping member towards the central passage opening during forward movement of the vacuum nozzle.

[0012] The first and second extension directions are inclined relative to one another by an inclination angle between 165° and 178°, advantageously between 170° and 178°, for example about 176°.

[0013] By scraping member is meant a member such as a brush or wiper that scrubs the floor as the nozzle of the vacuum cleaner passes over the surface to be cleaned, facilitating cleaning of the floor.

[0014] The particular inclination of the first and second scraping branches according to the invention is defined to ensure the sliding towards the central passage opening of larger debris such as rice grains or lentils which come into contact with the scraping members during the forward movement of the vacuum cleaner nozzle, while limiting the speed of movement of this debris towards the central passage opening.

[0015] In this way, the cleaner nozzle according to the present invention limits the risk of dirt accumulation at the central passage opening without requiring an excessively large central passage opening.

[0016] Furthermore, the particular inclination of the first and second scraping branches according to the invention substantially limits the frontal bulk of the vacuum nozzle, thus ensuring effective suction of debris located along a wall or pedestal.

[0017] The vacuum cleaner nozzle may also have one or more of the following characteristics, either alone or in combination:

[0018] According to one embodiment of the present invention, the front scraping member includes a central passage opening.

[0019] According to one embodiment of the present invention, the front scraping member comprises at least one first side passage opening in the first scraping branch and in fluid communication with the suction passage, and at least one second side passage opening in the second scraping branch and in fluid communication with the suction passage, the at least one first side passage opening and the at least one second side passage opening being arranged on both sides of the central passage opening. The presence of the at least one first side passage opening and the at least one second side passage opening makes it possible to further reduce the risk of large debris accumulation at the central passage opening.

[0020] According to one embodiment of the present invention, the at least one first and at least one second side passage opening are arranged symmetrically with respect to a longitudinal central plane of the cleaner nozzle, such an arrangement of the at least one first and at least one second side passage opening limits turbulence and therefore pressure losses in the suction path.

[0021] According to one embodiment of the invention, the central passage opening has a width smaller than the width of each of the first and second side passage openings, such an arrangement makes it possible to limit pressure loss at the central passage opening and further reduces the risk of debris accumulation at the central passage opening.

[0022] It should be noted that in this specification the term "width" in relation to a passage opening corresponds to the dimension of the passage opening measured transversely to the direction of movement of the cleaner nozzle.

[0023] According to one embodiment of the invention, the central passage opening has a height that is less than the height of the front scraping member.

[0024] According to one embodiment of the invention, each of the first and second side passage openings has a height that is less than the height of the front scraping member.

[0025] According to one embodiment of the present invention, the front scraping member includes a plurality of cutout areas, also called crenels, distributed along the front scraping member and defining at least one first side passage opening and at least one second side passage opening.

[0026] According to one embodiment of the present invention, the first scraping branch comprises a first internal branch having a length substantially corresponding to half the length of the first scraping branch and a first external branch having a length substantially corresponding to half the length of the first scraping branch, the first opening ratio of the first internal branch of the first scraping branch being comprised between 23 and 71%, for example between 30 and 60%, advantageously between 40 and 50%, the first opening ratio being the ratio of the length of the notch or the sum of the lengths of the notches provided on the first internal branch of the first scraping branch to half the length of the first scraping branch. The second scraping branch includes a second inner branch having a length substantially corresponding to half the length of the second scraping branch and a second outer branch having a length substantially corresponding to half the length of the second scraping branch, and the second opening ratio of the second inner branch of the second scraping branch is comprised between 23 and 71%, for example between 30 and 60%, advantageously between 40 and 50%, the second opening ratio being defined by the ratio between the length of the cutout or the sum of the lengths of the cutouts provided in the second inner branch of the second scraping branch. These arrangements make it possible to further reduce the risk of accumulation of dirt at the central passage opening.

[0027] According to one embodiment of the invention, the central passage opening is at least partially bounded by the first and second scraping branches.

[0028] According to one embodiment of the invention, the central passage opening is at least partially bounded by two cutouts in the first and second scraping branches, respectively.

[0029] According to another embodiment of the invention, the first and second scraping branches are spaced apart and the central passage opening is at least partially defined by inner edges of the first and second scraping branches.

[0030] According to one embodiment of the present invention, the front scraping member includes a plurality of scraping areas distributed along the front scraping member and configured to scrape the surface to be cleaned.

[0031] According to one embodiment of the present invention, the multiple scraping areas include a plurality of first scraping areas distributed along the first scraping branch and a plurality of second scraping areas distributed along the second scraping branch.

[0032] According to one embodiment of the invention, the first scraping branch includes alternation of cut out areas and first scraping areas, and the second scraping branch includes alternation of cut out areas and second scraping areas.

[0033] According to one embodiment of the present invention, the total length of the first scraping area is greater than 50% of the length of the first scraping branch, for example, greater than 70%, and the total length of the second scraping area is greater than 50% of the length of the second scraping branch, for example, greater than 70%. With such an arrangement, it is possible to ensure sufficient scraping of the surface to be cleaned while suppressing suction loss, especially on hard floor surfaces.

[0034] According to one embodiment of the present invention, the central passage opening has a width comprised between 1 and 2 cm, for example between 1.2 and 1.5 cm.

[0035] According to one embodiment of the invention, each of the first and second scraping branches is straight in shape.

[0036] According to one embodiment of the invention, the front scraping member is a front scraping brush.

[0037] According to one embodiment of the invention, the front scraping brush is formed by a plurality of bristles or bristle tufts.

[0038] According to another embodiment of the present invention, the front scraping member is formed from a flexible material.

[0039] According to an embodiment of the present invention, the first and second scraping branches are distinct and separated from each other. Such an arrangement facilitates the fastening of the front scraping member to the support and avoids the risk of deformation of this support. In fact, the use of a V-folded front scraping member is likely to cause deformation of the support to which it is fastened.

[0040] According to another embodiment of the invention, the first and second scraping branches are connected to one another.

[0041] According to one embodiment of the invention, the front scraping member extends along the leading edge of the suction channel.

[0042] According to one embodiment of the invention, the front scraping member has a length that is at least 70% greater than the width of the base surface, such as at least 80% greater.

[0043] According to one embodiment of the invention, a first end of the front scraping member is located near a first lateral edge of the bottom surface, and a second end of the front scraping member is located near a second lateral edge of the bottom surface.

[0044] According to one embodiment of the present invention, the front scraping member is movable between a lowered position in which the front scraping member protrudes from the underside of the base and is configured to contact the surface to be cleaned, and a raised position in which the front scraping member is retracted from the underside of the base and positioned away from the surface to be cleaned.

[0045] According to one embodiment of the invention, the front scraping member is mounted on a support which is movably, e.g. slidably, mounted on the bottom surface.

[0046] According to one embodiment of the present invention, each of the first and second scraping branches has a length comprised between 10 and 16 cm, for example about 13 cm.

[0047] According to one embodiment of the present invention, the front scraping member has a thickness comprised between 3 and 7 mm.

[0048] According to one embodiment of the invention, the front scraping member includes a lower edge that extends substantially horizontally when the cleaner nozzle is resting on a horizontal surface.

[0049] According to one embodiment of the invention, the cleaner nozzle includes a rear scraping member, such as a rear scraping brush, located rearward of the trailing edge of the suction path.

[0050] According to one embodiment of the present invention, the rear scraping member extends along the trailing edge of the bottom surface.

[0051] According to one embodiment of the present invention, the rear scraping member includes a central portion extending substantially parallel to the extension direction of the suction path and a first lateral portion and a second lateral portion arranged on either side of the central portion of the rear scraping member, the first lateral portion and the second lateral portion diverging relative to each other in the direction of the rear edge of the bottom surface.

[0052] According to one embodiment of the invention, the suction path extends in an extension direction that is transverse to the direction of movement of the cleaner nozzle.

[0053] According to one embodiment of the present invention, each of the first and second extending directions is inclined with respect to the extending direction of the suction passage by an inclination angle comprised between 1 and 7.5°, for example, between 1 and 5°.

[0054] According to one embodiment of the invention, the first and second scraping branches are arranged symmetrically relative to a longitudinal centre plane of the cleaner nozzle.

[0055] According to one embodiment of the present invention, the front scraping member includes a first end and a second end opposite each other, the first end and the second end of the front scraping member being farther from the suction path than a central portion of the front scraping member.

[0056] According to one embodiment of the invention, the cleaner nozzle includes a fork hingedly attached to a bottom surface via a forward pivot link that defines a forward pivot axis extending transversely to a direction of movement of the cleaner nozzle.

[0057] According to one embodiment of the present invention, the vacuum nozzle comprises two main wheels intended to roll on the surface to be cleaned, the two main wheels being rotatably mounted on a fork about a wheel axis substantially parallel to the front pivot axis.

[0058] According to one embodiment of the invention, the vacuum nozzle comprises a connection sleeve to which a suction tube of the vacuum cleaner is intended to be fixed, the connection sleeve being fluidly connected to the suction passage.

[0059] According to one embodiment of the invention, the connecting sleeve is hingedly attached to the connecting member relative to the fork via a rear pivot link defining a rear pivot axis substantially parallel to the front pivot axis.

[0060] According to one embodiment of the invention, the cleaner nozzle includes a flexible connecting conduit fluidly connecting the suction passage to the connecting sleeve.

[0061] According to the embodiment depicted in the figures, the front scraping member comprises a single first side passage opening and a single second side passage opening, advantageously the first side passage opening being closer to the apex of the V-shape of the front scraping member than the outer edge of the first scraping branch, and the second side passage opening being closer to the apex of the V-shape of the front scraping member than the outer edge of the second scraping branch.

[0062] The invention further relates to a domestic vacuum cleaner, such as a canister vacuum cleaner, comprising a vacuum nozzle according to the invention. [Brief description of the drawings]

[0063] The objects, aspects and advantages of the present invention will be better understood from the following description of particular embodiments thereof, given as non-limiting examples, with reference to the accompanying drawings, in which: [Figure 1] FIG. 1 is a perspective view of a cleaner nozzle according to the present invention. [Diagram 2] FIG. 2 is a side view of the cleaner nozzle of FIG. [Diagram 3] FIG. 3 is a bottom view of the cleaner nozzle of FIG. [Figure 4] 4 is a partial perspective view of the cleaner nozzle of FIG. 1. FIG. [Diagram 5] FIG. 5 is a front view of the cleaner nozzle of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0064] Only the elements necessary for understanding the invention are depicted. To make the drawings easier to read, the same elements use the same references in each figure.

[0065] Figures 1 to 5 depict a cleaner nozzle 2 comprising a bottom surface 3 with a lower surface 4 which, when the cleaner nozzle 2 is in use, is intended to be placed adjacent a surface to be cleaned.

[0066] The bottom surface 3 is also provided with a suction channel 5 emerging at the lower surface 4. Advantageously, the suction channel 5 is elongate and extends transversely to the direction of movement D2 of the cleaner nozzle 2, for example in an extension direction D1 perpendicular to the direction of movement D2.

[0067] The cleaner nozzle 2 further comprises a fork 6 including two fork arms 7 that extend perpendicular to the direction of movement D2 of the cleaner nozzle 2 and are hingedly mounted on the bottom surface 3 via a front pivot link P1 that defines a front pivot axis X1 that is substantially horizontal when the cleaner nozzle 2 is resting on a horizontal surface. The fork 6 can therefore tilt backwards or forwards relative to the bottom surface 3.

[0068] The cleaner nozzle 2 also comprises two main wheels 8 intended to roll on the surface to be cleaned. The two main wheels 8 are rotatably mounted on the forks 6 about a wheel axis A which is parallel to the front pivot axis X1 and is therefore substantially horizontal even when the cleaner nozzle 2 is resting on a horizontal surface. Advantageously, the main wheels 8 are arranged on either side of the forks 6.

[0069] The vacuum nozzle 2 further comprises a connecting sleeve 9, to the end of which is connected the tip of a suction tube (not shown) itself which is connected to the suction system (not shown) of the vacuum cleaner. Vacuum cleaners of various variants are already present on the market which can be used with the vacuum nozzle 2 according to the invention, but these variants are known to the person skilled in the art and will not be described in detail here.

[0070] The cleaner nozzle 2 also comprises a flexible connecting conduit 11 (see FIG. 4) which fluidly connects the suction passage 5 to the connecting sleeve 9 .

[0071] The cleaner nozzle 2 further comprises a connecting member 12 which mechanically connects the connecting sleeve 9 to the fork 6 .

[0072] The connecting sleeve 9 is in particular hinged to the connecting member 12 via a rear pivot link P2 that defines a rear pivot axis X2 parallel to the front pivot axis X1. The connecting sleeve 9 can therefore tilt rearward or forward relative to the connecting member 12.

[0073] The connecting member 12 is hinged to the fork 6 via a central pivot link P3 defining a rotation axis X3 extending perpendicular to the front pivot axis X1. The central pivot link P3 is arranged between the rear pivot link P2 and the front pivot link P1, more particularly between the front pivot link P1 and the wheel axis A. Advantageously, the central pivot link P3 is arranged between the two fork arms 7.

[0074] The cleaner nozzle 2 further comprises a front scraping member 13 located in front of the leading edge 5.1 of the suction path 5. Advantageously, the front scraping member 13 extends along and adjacent to the leading edge 5.1 of the suction path 5 and includes a lower edge 13.1 which extends substantially horizontally when the cleaner nozzle 2 is resting on a horizontal surface.

[0075] According to the embodiment shown in the figures, the front scraping member 13 is a front scraping brush formed by a plurality of bristles or bristle tufts, but according to a variant of the invention not shown in the figures, it is also possible for the front scraping member 13 to be made of a flexible material.

[0076] The front scraping member 13 is movable up and down between a lowered position in which the front scraping member 13 projects from the underside 4 of the bottom surface 3 and is adapted to contact the surface to be cleaned, and a raised position in which the front scraping member 13 is retracted from the underside 4 of the bottom surface 3 and is arranged at a distance from the surface to be cleaned. The front scraping member 13 can, for example, be mounted on a support which is movably, for example slidably, mounted on the bottom surface 3. However, according to one variant not shown in the figures, the front scraping member 13 can be fixed relative to the bottom surface 3 and project from the underside 4 of the bottom surface 3.

[0077] The front scraping member 13 comprises a first end 131 and a second end 132 which are opposite each other. According to the embodiment shown in the figures, the first end 131 of the front scraping member 13 is located near the first lateral edge 3.1 of the bottom surface 3 and the second end 132 of the front scraping member 13 is located near the first lateral edge 3.2 of the bottom surface 3. Advantageously, the front scraping member 13 has a length of at least 80%, for example 90%, of the width of the bottom surface 3 and a thickness of 3 to 7 mm.

[0078] The front scraping member 13 has a V-shape with an apex directed toward the center of the suction path 5. In other words, the first and second ends 131, 132 of the front scraping member 13 are farther from the suction path 5 than the center of the front scraping member 13.

[0079] The front scraping member 13 comprises a first scraping branch 14, which is linear and extends in a first extension direction De1, and a second scraping branch 15, which is linear and extends in a second extension direction De2. Each of the first and second scraping branches 14, 15 may have a length comprised between 10 and 16 cm, for example about 13 cm. Advantageously, the first and second scraping branches 14, 15 are arranged symmetrically with respect to the longitudinal central plane of the cleaner nozzle 2.

[0080] As shown in particular in FIG. 3, the first and second extension directions De1, De2 are inclined relative to one another by an inclination angle α comprised between 165° and 178°, advantageously between 170° and 178°, for example approximately 176°.

[0081] According to the embodiment shown in the figures, the first and second scraping branches 14, 15 are separate and separated from one another. The bottom surface 3 can, for example, comprise a spacer portion interposed between the first and second scraping branches 14, 15. However, according to a variant of the invention not shown in the figures, the first and second scraping branches 14, 15 can be connected to one another.

[0082] 5, the front scraping member 13 at least partially defines a central passage opening 16 in fluid communication with the suction passage 5, more particularly with a central portion of the suction passage 5, such that dirt is sucked through the central passage opening 16 in the direction of the suction passage 5. The central passage opening 16 has a width of, for example, 1 to 2 cm, in particular 1.2 to 1.5 cm.

[0083] More specifically, the first and second scraping branches 14, 15 are configured to direct debris that comes into contact with the front scraping member 13 during forward movement of the vacuum cleaner nozzle 2 towards the central passage opening 16 so that the debris is sucked through the central passage opening 16.

[0084] In order to avoid accumulation of debris in the central passage opening 16, in particular when there is a significant amount of debris on the surface to be cleaned or when debris of large size is present, the front scraping member 13 further defines at least one first side passage opening 17 in fluid communication with the suction path 5 and at least one second side passage opening 18 also in fluid communication with the suction path 5. Advantageously, the first and second side passage openings 17, 18 are provided in the first and second scraping branches 14, 15, respectively.

[0085] According to the embodiment shown in the figures, the front scraping member 13 comprises a single first side passage opening 10 and a single second side passage opening 18. Advantageously, the first side passage opening 17 is closer to the apex of the V-shape of the front scraping member 13 than the outer edge of the first scraping branch 14, and the second side passage opening 18 is closer to the apex of the V-shape of the front scraping member 13 than the outer edge of the second scraping branch 15.

[0086] However, according to one variant of the invention not shown in the figures, the front scraping member 13 may include a plurality of first side passage openings 17, for example two, three or more, and a plurality of second side passage openings 18, for example two, three or more.

[0087] Advantageously, the first lateral passage opening 17 and the second lateral passage opening 18 are arranged on either side of the central passage opening 16, more particularly arranged symmetrically with respect to the longitudinal central plane of the cleaner nozzle 2.

[0088] According to the embodiment shown in the figures, the central passage opening 16 has a width that is smaller than the respective widths of the first and second lateral passage openings 17, 18. The width of the central passage opening 16 is for example comprised between 30 and 70%, advantageously between 40 and 60%, and for example equal to about 50% of the respective widths of the first and second lateral passage openings 17, 18.

[0089] As shown in FIG. 5, the front scraping member 13 includes a plurality of scraping regions 19 distributed along the front scraping member 13 and configured to scrape the surface to be cleaned, and a plurality of cutout regions 21 distributed along the front scraping member 13 and provided with cutout portions, also referred to as crenels.

[0090] The multiple scraping areas more particularly comprise multiple first scraping areas 19.1 distributed along the first scraping branch 14 and multiple second scraping areas 19.2 distributed along the second scraping branch 15. Advantageously, the sum of the lengths of the first scraping areas 19.1 is greater than 50% of the length of the first scraping branch 14, for example greater than 70%, and the sum of the lengths of the second scraping areas 19.2 is greater than 50% of the length of the second scraping branch 15, for example greater than 70%.

[0091] According to the embodiment shown in the figures, the first scraping branch 14 includes an alternating arrangement of cutout areas 21 and first scraping areas 19.1, and the second scraping branch 15 also includes an alternating arrangement of cutout areas 21 and second scraping areas 19.2. The first scraping branch 14 can include, for example, two cutout areas 21 and two first scraping areas 19.1, and the second scraping branch 15 can include, for example, two cutout areas 21 and two second scraping areas 19.2.

[0092] According to the embodiment shown in the figures, the central passage opening 16 is bounded by two notches provided in the first and second scraping branches 14, 15, respectively, located at the inner ends of the first and second scraping branches 14, 15. However, according to a variant of the invention not shown in the figures, the first and second scraping branches 14, 15 can be spaced apart and the central passage opening 16 can be at least partially bounded by the inner edges of the first and second scraping branches 14, 15. According to such a variant of the invention, the first and second scraping branches 14, 15 are devoid of notches at their inner ends.

[0093] According to the embodiment shown in the figures, each of the first side passage openings 17 is defined by a notch provided in the first scraping branch 14, and each of the second side passage openings 18 is defined by a notch provided in the second scraping branch 15.

[0094] As shown in FIG. 5 , the first scraping branch 14 includes a first internal branch 14.1 having a length substantially corresponding to half the length of the first scraping branch 14, and a first external branch 14.2 having a length substantially corresponding to half the length of the first scraping branch 14, and the second scraping branch 15 includes a second internal branch 15.1 having a length substantially corresponding to half the length of the second scraping branch 15, and a second external branch 15.2 having a length substantially corresponding to half the length of the second scraping branch 15.

[0095] Advantageously, the first aperture ratio of the first internal branch 14.1 is comprised between 23 and 71%, for example between 30 and 60%, preferably between 40 and 50%, and the second aperture ratio of the second internal branch 15.1 is comprised between 23 and 71%, for example between 30 and 60%, preferably between 40 and 50%. The first aperture ratio is defined by the ratio of the length of the cutout area 21 provided in the first internal branch 14.1 or the sum of the lengths of the cutout areas 21 to half the length of the first scraping branch 14, and the second aperture ratio is defined by the ratio of the length of the cutout area 21 provided in the second internal branch 15.1 or the sum of the lengths of the cutout areas 21 to half the length of the second scraping branch.

[0096] According to the embodiment shown in the figures, the first external branch 14.2 and the second external branch 15.2 are devoid of cut-out areas 21.

[0097] 3, the cleaner nozzle 2 further comprises a rear scraping member 22, such as a rear scraping brush, arranged rearward of the rear edge 5.2 of the suction path 5. The rear scraping member 22 extends substantially parallel to the extension direction D1 of the suction path 5.

[0098] However, according to an embodiment not shown in the figures, the rear scraping member 22 may comprise a central portion extending substantially parallel to the extension direction D1 of the suction channel 5 and first and second lateral portions arranged on either side of the central portion of the rear scraping member and inclined relative to one another. The first and second lateral portions may, for example, diverge relatively in the direction of the rear edge of the bottom surface 3.

[0099] Of course, the invention is in no way limited to the description and illustrated embodiments, which are given by way of example only: modifications are possible, particularly in terms of the arrangement of the various elements or by the substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

Claim 1 A vacuum cleaner nozzle (2), comprising: - A bottom surface (3) having a lower surface (4) configured to face the surface to be cleaned, a suction passage (5) appearing on the lower surface (4) of the bottom surface (3), and the bottom surface (3); - A front scraping member (13) disposed at the front of the leading edge of the suction passage (5) and at least partially defining a central passage opening (16) in fluid communication with the suction passage (5). The front scraping member (13) has a generally V-shaped configuration with a top oriented towards the central portion of the suction passage (5). The front scraping member (13) is elongated and includes a first scraping branch (14) extending in a first extending direction (De1) and a second scraping branch (15) extending in a second extending direction (De2). The first and second scraping branches (14, 15) are configured to direct dust contacting the front scraping member (13) towards the central passage opening (16) during forward movement of the vacuum cleaner nozzle (2). ; The vacuum cleaner nozzle (2), wherein the first and second extending directions (De1, De2) are inclined relative to each other by an inclination angle configured between 165° and 178°. Claim 2 The vacuum cleaner nozzle (2) according to claim 1, wherein the front scraping member (13) includes at least one first side passage opening (17) provided in the first scraping branch (14) and in fluid communication with the suction passage (5), and at least one second side passage opening (18) provided in the second scraping branch (15) and in fluid communication with the suction passage (5). The at least one first side passage opening (17) and the at least one second side passage opening (18) are disposed on both sides of the central passage opening (16). Claim 3 The vacuum cleaner nozzle (2) according to claim 2, wherein the at least one first side passage opening (17) and the at least one second side passage opening (18) are symmetrically disposed with respect to the longitudinal central plane of the vacuum cleaner nozzle (2). Claim 4 The vacuum cleaner nozzle (2) according to claim 2, wherein the central passage opening (16) has a width smaller than the width of each of the first and second side passage openings (17, 18). Claim 5 The cleaning nozzle (2) according to claim 1, wherein the front scraping member (13) includes a plurality of notch regions (21) that are distributed along the front scraping member (13) and define the at least one first side passage opening (17) and the at least one second side passage opening (18).

6. - The first scraping branch (14) includes a first inner branch portion (14.1) having a length substantially corresponding to half of the length of the first scraping branch (14), and a first outer branch portion (14.2) having a length substantially corresponding to half of the length of the first scraping branch (14). The first opening ratio of the first inner branch portion (14.1) of the first scraping branch (14) is configured to be between 23% and 71%. The first opening ratio is defined by the ratio between the length of the notch region (21), or the total length of the notch regions (21) provided in the first inner branch portion (14.1) of the first scraping branch (14), and half of the length of the first scraping branch (14). - The second scraping branch (15) includes a second inner branch portion (15.1) having a length substantially corresponding to half of the length of the second scraping branch (15), and a second outer branch portion (15.2) having a length substantially corresponding to half of the length of the second scraping branch (15). The second opening ratio of the second inner branch portion (15.1) of the second scraping branch (15) is configured to be between 23% and 71%. The second opening ratio is defined by the ratio between the length of the notch region (21), or the total length of the notch regions (21) provided in the second inner branch portion (15.1) of the second scraping branch (15), and half of the length of the second scraping branch (15). The cleaning nozzle (2) according to claim 5.

7. The cleaning nozzle (2) according to claim 1, wherein the front scraping member (13) includes a plurality of scraping regions (19) that are distributed along the front scraping member (13) and are configured to scrape the surface to be cleaned.

8. The cleaning nozzle (2) according to claim 7, wherein the plurality of scraping regions include a plurality of first scraping regions (19.1) distributed along the first scraping branch (14) and a plurality of second scraping regions (19.2) distributed along the second scraping branch (15). Claim 9. The front scraping member (13) includes a plurality of notch regions (21) that are distributed along the front scraping member (13) and define the at least one first side passage opening (17) and the at least one second side passage opening (18). The first scraping branch (14) includes an alternating arrangement of the notch regions (21) and the first scraping region (19.1), and the second scraping branch (15) includes an alternating arrangement of the notch regions (21) and the second scraping region (19.2). The vacuum cleaner nozzle (2) according to claim 8.

10. The total length of the first scraping regions (19.1) is greater than 50% of the length of the first scraping branch (14), and the total length of the second scraping regions (19.2) is greater than 50% of the length of the second scraping branch (15). The vacuum cleaner nozzle (2) according to claim 8.

11. The front scraping member (13) is a front scraping brush. The vacuum cleaner nozzle (2) according to claim 1.

12. The first and second scraping branches (14, 15) are separated from each other. The vacuum cleaner nozzle (2) according to claim 1.

13. The front scraping member (13) extends along the leading edge of the suction passage (5). The vacuum cleaner nozzle (2) according to claim 1.

14. The front scraping member (13) protrudes from the lower surface (4) of the bottom surface (3) and is configured to contact the surface to be cleaned in a lowered position, and the front scraping member (13) retreats from the lower surface (4) of the bottom surface (3) and is configured to be positioned at a distance from the surface to be cleaned. The vacuum cleaner nozzle (2) according to claim 1, which is movable between raised positions.

15. A household vacuum cleaner comprising the vacuum cleaner nozzle (2) according to any one of claims 1 to 14.

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