EP3518720A1 - Suction nozzle and a hard-surface suction device - Google Patents
Suction nozzle and a hard-surface suction deviceInfo
- Publication number
- EP3518720A1 EP3518720A1 EP16777638.4A EP16777638A EP3518720A1 EP 3518720 A1 EP3518720 A1 EP 3518720A1 EP 16777638 A EP16777638 A EP 16777638A EP 3518720 A1 EP3518720 A1 EP 3518720A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction nozzle
- abziehlippe
- lip
- support lip
- nozzle according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 abstract description 21
- 238000007789 sealing Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L1/00—Cleaning windows
- A47L1/02—Power-driven machines or devices
- A47L1/05—Hand apparatus with built-in electric motors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L1/00—Cleaning windows
- A47L1/16—Devices for defrosting window-panes
Definitions
- the invention relates to a suction nozzle for a portable Hartroisabsaug réelle for withdrawing and aspirating a liquid from a hard surface, in particular from a window pane, comprising a Saugdüsengephase in which a connectable to a vacuum source suction channel is arranged and on the housing end face an elastically deformable Abziehlippe and an elastically deformable Support lip are arranged which protrude from the suction nozzle housing and define between them a suction chamber, which adjoins the suction channel, wherein the Abziehlippe has at its protruding from the suction nozzle housing front end portion of an applied to the hard surface to be cleaned Abziehlippenkante, and wherein the support lip on her from the suction nozzle housing protruding front end region has an applied to the hard surface to be cleaned support lip edge, the Abziehlippenkante based on a removal direction of the suction nozzle behind the Stützlippenka nte is arranged, and wherein the support lip
- the invention relates to a Hart vomabsaug réelle with such a suction nozzle.
- a suction nozzle and a Hart vomabsaug réelle for removing and sucking a liquid from a hard surface are known from WO 2009/086893 A2. They are used in particular for cleaning windows, but also for cleaning other hard surfaces, such as shower cubicle walls, glass doors or tiled walls.
- the portable Hartvidaug réelle can be moved in a stripping on the hard surface along the manner of a manual Breabziehers so that liquid can be sucked from the hard surface.
- the suction nozzle has a suction nozzle housing surrounding a suction channel. On a housing end face of the suction nozzle housing, an elastically deformable Abziehlippe and an elastically deformable support lip are arranged, which protrude from the Saugdüsengephase.
- the Abziehlippe has at its protruding from the suction nozzle housing front end portion Abziehlippenkante which can be applied to the hard surface to be cleaned, and the support lip has at its protruding from the suction nozzle housing front end portion a support lip edge, which are also applied to the hard surface to be cleaned can.
- the Abziehlippe and the support lip define therebetween a suction space, which is followed in the direction of the Abziehlippenkante and the supporting lip edge facing away from the suction channel.
- the suction channel can be connected to a vacuum source, in particular to a suction unit, of the hard surface suction device, so that a suction flow is formed under the action of which liquid can be sucked off the hard surface to be cleaned.
- the liquid can be sucked from the hard surface via the suction chamber into the suction channel.
- the Hartvidabsaug réelle has a dirty liquid container, which can absorb the extracted liquid.
- the Abziehlippenkante and the supporting lip edge are pressed against the hard surface to be cleaned and the suction nozzle is guided along in a removal direction on the hard surface, for example from top to bottom.
- the support lip edge is arranged in front of the Abziehlippenkante so that liquid, which is located on the hard surface, accumulates during a movement of the suction nozzle on the supporting lip edge and passes from the latter via the at least one opening of the support lip in the suction chamber, of the from being sucked into the suction channel.
- Object of the present invention is therefore to develop a suction nozzle and a hard surface suction device of the type described above such that a better cleaning result can be achieved.
- a Abziehlippe which has at least one Abziehlippenfortsatz which forms a Abziehlippenkante and is aligned obliquely or perpendicular to a protruding from the housing end longitudinal portion of the Abziehlippe.
- the Abziehlippe forms from the housing front side projecting forward longitudinal portion, to which the at least one, inclined to the longitudinal portion Abziehlippenfortsatz connects, which forms a Abziehlippenkante at its free end.
- the Abziehlippenforts stands obliquely or perpendicularly from the longitudinal portion of the Abziehlippe and can be pressed with its free end, which forms a Abziehlippenkante against the hard surface to be cleaned.
- the at least one Abziehlippenfortsatz is designed like a hook.
- the Abziehlippe has a Abziehlippenfortsatz, which engages behind the support lip edge relative to the stripping.
- the Abziehlippe has a longer and a shorter leg, which are obliquely or perpendicular to each other, wherein the longer leg forms the longitudinal portion of the Abziehlippe and the shorter leg forms a Abziehlippenfortsatz the Abziehlippe.
- the Abziehlippe L-shaped configuration In an advantageous embodiment of the invention, the Abziehlippe L-shaped configuration.
- the Abziehlippe has a single Abziehlippenfortsatz that can be pressed with its Abziehlippenkante against the hard surface to be cleaned, as explained above. But it can also be provided that the Abziehlippe has two Abziehlippenfort arrangements, each forming a Abziehlippenkante and based on the Longitudinal section pointing in different directions.
- the pull-off lip optionally in a first or a second orientation on the suction nozzle housing, wherein in a first orientation a first pull-out lip extension is inclined in the direction of the hard surface to be cleaned and its pull-off lip edge can be pressed against the hard surface, and wherein, in a second orientation, the second peel-off lip extension is inclined toward the hard surface to be cleaned and the peen-lip edge thereof can be pressed against the hard surface.
- the Abziehlippe has two Abziehlippenfort alternatives which are configured in mirror image to a median plane of the longitudinal portion of the Abziehlippe.
- the Abziehlippe T-shaped or Y-shaped be configured.
- a first arm of the peel-off lip may form a first peel-off appendage with a first peel-edge and a second arm of the peel-off lip may form a second peel-off appendage with a second peel-tip edge, the two arms projecting on opposite sides from an elongate center portion of the peel-off lip and the middle portion Longitudinal section of the Abziehlippe forms.
- the length of the longitudinal section is at least six times the length of the Abziehlippenfortsatzes.
- the distance between the front end of the longitudinal section facing away from the suction channel and the housing front side of the suction nozzle housing is referred to as the length of the longitudinal section
- the vertical distance between the Abziehlippenkante arranged at the free end of the Abziehlippenfortses from a median plane of the longitudinal section is referred to as the length of Abziehlippenfortsatzes.
- the length of the Abziehlippenfortses may for example be 1 to 6 mm, in particular 2 to 4 mm and the length of the longitudinal section may for example be 10 to 30 mm, in particular 16 to 24 mm.
- the longitudinal portion of the Abziehlippe is configured in a straight line in the undeformed basic position of the Abziehlippe.
- a position of the Abziehlippe is referred to, in which it does not contact the hard surface to be cleaned and therefore is not subject to deformation caused by pressing against the hard surface.
- the longitudinal section is conveniently formed in a straight line in this basic position of the Abziehlippe.
- the longitudinal section extends in the undeformed basic position of the Abziehlippe parallel or collinear to a central axis of the Saugdüsengephaseuses.
- the Abziehlippe has a Abziehlippenfortsatz, which rests in the undeformed basic position of the Abziehlippe at the front end portion of the support lip.
- the distance between the front end portion of the support lip and a Abziehlippenfortsatz is as small as possible.
- the support lip has at its front end region an end face on which a Abziehlippenforts rests in the undeformed basic position of the Abziehlippe with a contact surface.
- a Abziehlippenfortsatz touched with its front end portion of the support lip by a contact surface of the Abziehlippenfortsatz rests against an end face of the support lip.
- the end face of the support lip forms in an advantageous embodiment of the invention, a wedge surface which extends to the support lip edge.
- the contact surface of the Abziehlippenfortsatz forms in the undeformed basic position of the Abziehlippe advantageously an inclined at an obtuse angle to an underside of the longitudinal portion oblique surface.
- the inclined surface may extend from the Abziehlippenkante up to the support lip-facing bottom of the longitudinal portion of the Abziehlippe.
- the underside can be designed just in the undeformed basic position of the Abziehlippe.
- the at least one opening of the support lip is configured as arranged on the support lip edge recess.
- liquid accumulates on the support lip when the suction nozzle is moved in the removal direction along the hard surface to be cleaned.
- the liquid which accumulates on the support lip can pass via the at least one end-side recess of the support lip into the suction space between the support lip and the draw-off lip. It is advantageous if a plurality of recesses are arranged on the support lip edge.
- Liquid which accumulates on the support lip on the hard surface to be cleaned when the support lip is passed along can be passed over the Recesses, which are arranged on the support lip underside, reach the arranged on the end face of the support lip recesses and flow over them into the suction chamber.
- the support lip has a plurality of elevations on its support lip upper side facing the pull-off lip.
- the elevations may form spacers, so that it is ensured that the Abziehlippe does not rest flat in the deformed state on the support lip when the suction nozzle is moved along the hard surface to be cleaned. Rather, it is ensured by the elevations of the support lip, that can get into the suction channel via the suction liquid.
- the elevations, which are arranged on the support lip top, extend in an advantageous embodiment of the invention to an end face having the support lip at its front end portion.
- a Abziehlippenfortsatz with a contact surface on the end face of the support lip is supported when the Abziehlippe assumes its undeformed basic position.
- the arranged on the support lip top elevations form in an advantageous embodiment of the invention, rib-like flow guide.
- the flow guide elements can be adapted in their shape to the flow direction of the suction flow, which forms in the suction chamber when the suction channel is connected to a vacuum source. Flow losses can be kept low.
- the elevations are arranged fan-shaped in an advantageous embodiment of the invention.
- the distances between adjacent surveys increase with increasing distance from a central axis of the suction nozzle housing. It can be provided, for example, that in a relative to the central axis zen tral region of the support lip between two mutually immediately adjacent elevations only a single end-side recess is arranged, whereas with increasing distance from the central axis of the distance between each other immediately adjacent elevations increases, so that between two immediately adjacent elevations several end-side recesses are arranged.
- side walls By means of the side walls of the suction chamber can be at least partially closed laterally.
- the side walls may for example be designed in the manner of ribs which are integrally formed in the region of the side edges of the Abziehlippe and / or on the support lip.
- the provision of the side walls reduces the lateral inflow of false air into the suction space between the Abziehlippe and the support lip.
- the lateral closing of the suction chamber thus optimizes the suction flow forming between the abutting lip edge resting against the hard surface and the supporting lip edge resting on the hard surface and thus improves the cleaning result.
- a further improvement of the cleaning result is achieved in an advantageous embodiment of the invention in that the Abziehlippe has a first and a second side edge, which limit the width of the Abziehlippe, and that the Abziehlippe is reinforced at intervals from the side edges in some areas. By partially reinforcing the Abziehlippe this receives a non-uniform bending stiffness, namely the bending stiffness of the Abziehlippe in individual areas which occupy a distance to the side edges, higher than in the region of the side edges.
- the partially increased flexural rigidity improves the cleaning result in cases in which an edge region of a hard surface, in particular an edge region of a window pane, is cleaned by means of the suction nozzle, wherein unevennesses occur in the edge region. Such unevennesses are detected, for example, by formed strips that limit a window. If the edge region of the window pane is cleaned by means of the suction nozzle, it may be the case that the drawing-off lip rests with its edge region adjacent to one side edge on a sealing strip and thereby stands out from the window pane. By reinforcing the Abziehlippe in areas which occupy a distance to a side edge, the Abziehlippe receives regionally higher bending stiffness. This can reduce the risk that the Abziehlippe unintentionally lifted off the window when it rests with its outer edge region on a sealing strip.
- the Abziehlippe has on its side facing away from the support lip Abziehlippenoberseite each at least one reinforcing rib at a distance from the side edges.
- the reinforcing rib advantageously extends over the entire length of the longitudinal section of the Abziehlippe.
- a pair of reinforcing ribs is arranged at a distance from each side edge.
- the Abziehlippe on the Abziehlippenoberseite at least two pairs of reinforcing ribs, wherein a first pair of reinforcing ribs is disposed at a small distance to a first side edge, and wherein a second pair of reinforcing ribs at a small distance from the second side edge the Abziehlippe is arranged.
- the two pairs of reinforcing ribs have the same distance to the nearest side edge of the Abziehlippe.
- the distance that the pairs of reinforcing ribs have to the nearest side edge may be 4 mm to 8 mm.
- the distance between the two reinforcing ribs of a pair of reinforcing ribs is preferably about 0.5 mm to about 3 mm. It is particularly advantageous if the at least one reinforcing rib has a support surface, which abuts against the housing end face in the direction away from the support lip when the release lip is deformed from the undeformed basic position. In the undeformed basic position of the Abziehlippe the support surface of the reinforcing ribs can take a distance to the housing end face, but the Abziehlippe is pressed when cleaning a hard surface on the hard surface, the Abziehlippe is deformed and the support surface of the reinforcing ribs comes to the housing end to the plant.
- the length of the protruding from the suction nozzle housing portion of the Abziehlippe is conveniently at least 18 mm, in particular 20 to 30 mm.
- the length is understood to mean the distance between the housing front side and the front end of the Abziehlippe.
- the length of the region of the support lip protruding from the suction nozzle housing is preferably at least 16 mm, in particular approximately
- the two side edges of the Abziehlippe are aligned parallel to each other, so that the distance between the two side edges to each other, that is, the width of the Abziehlippe, over the entire length of the Abziehlippe is constant.
- the region of the Abziehlippe projecting from the suction nozzle housing can be designed rectangular.
- the side edges of the Abziehlippe with increasing distance from the housing end face of the suction nozzle housing have an increasing distance from each other, that is, that the width of the Abziehlippe with increasing distance to the housing end face increases.
- the protruding from the suction nozzle housing region of the Abziehlippe can be configured trapezoidal in plan view, for example.
- the side edges of the Abziehlippe arcuately curved outward.
- the invention relates not only to a suction nozzle but also to a portable hard surface suction device with such a suction nozzle.
- the portable Hartvidabsaug réelle can be designed in particular in the form of a hand-held device that can be carried by the user with one hand and guided along the manner of a manual Breabziehers in a stripping on a window pane.
- the Hartvidabsaug réelle has a suction unit and a dirty liquid tank and a separator, wherein by means of the separation device liquid can be separated from a sucked liquid-air mixture.
- a suction flow can be generated in the suction space between the Abziehlippe and the support lip and in the adjoining the suction chamber suction, under the effect of a mixture of liquid and air can be sucked into the suction chamber.
- the aspirated liquid can be separated by means of the separator from the mixture of liquid and air and transferred to the dirty liquid tank.
- the aspirated air can be released through the air outlet openings of the hard surface suction device to the environment.
- FIG. 1 is a perspective view of a hard surface suction device
- FIG. 2 shows a plan view of a suction nozzle of the hard surface suction device from FIG. 1;
- Figure 3 is a sectional view of the suction nozzle along the line 3-3 in Figure 2;
- Figure 4 a perspective, partially separated representation of
- Figure 5 is a plan view of the suction nozzle of Figure 2, with a Abziehlippe has been removed;
- Figure 6 is a bottom view of the suction nozzle of Figure 2;
- FIG. 7 shows a sectional view of the suction nozzle from FIG. 2 along a central axis when passing along a hard surface
- FIG. 8 a perspective view of the suction nozzle from FIG.
- FIG. 9 an enlarged view of detail A from FIG. 8;
- FIG. 10 shows a plan view of an alternative embodiment of a suction nozzle of the hard surface suction device from FIG. 1;
- Figure 11 a plan view of another alternative embodiment of a
- the Hartvidabsaug réelle With the help of the portable Hartvidabsaug réelles liquid from a hard surface, in particular from a window, pulled and sucked.
- the Hartvidabsaug réelle can be moved by the user in the manner of a manual Breabziehers along the hard surface.
- the portable Hartvidabsaug réelle thus forms a window cleaning device.
- the Hart vomunabsaug réelle 10 includes a base housing 14, which forms a handle 16 and surrounds a suction unit 18, which is driven by an electric motor 20.
- the electric motor 20 is powered by a arranged in the base housing 14 rechargeable battery 22 with electrical energy.
- the suction unit 18 is connected via a running in the base housing 14 suction line 24 with a arranged in the base housing 14 separating device 26 in fluid communication with the aid of liquid from an aspirated liquid-air mixture can be deposited.
- the separated liquid can be transferred into a dirty liquid container 28, which can be arranged on the side facing away from the handle 16 of the base housing 14 and separated from the base housing 14 for emptying.
- the suction nozzle 12 adjoins the base housing 14.
- the suction nozzle 12 has a suction nozzle housing 30 and is releasably connectable to the base housing 14.
- the suction nozzle housing 30 comprises an upper housing half shell 32 and a lower housing half shell 34, which are screwed together by means of connecting screws 36.
- the suction nozzle housing 30 surrounds a suction channel 38, which extends from a housing end face 40 to a housing rear side 42.
- the housing end face 40 faces away from the base housing 14, whereas the housing rear side 42 faces the base housing 14.
- On the housing end face 40 an elastically deformable Abziehlippe 44 and an elastically deformable support lip 46 are held, which protrude from the Saugdüsengephase 30 in the suction channel 38 facing away from the direction forward.
- a silicone material can be used.
- the support lip 46 is advantageously formed on the lower housing half shell 34.
- the lower housing half shell 34 together with the support lip 46 form a common injection molded part with two components.
- the lower shell half shell 34 may form a hard component of the injection molded part and the support lip 46 may form an elastomeric component of the molded part.
- the Abziehlippe 44 has a suction channel 38 facing holding portion 48 which is clamped between the upper housing half shell 32 and an intermediate part 37.
- the intermediate part 37 is clamped between the upper housing half shell 32 and the lower housing half shell 34.
- In the suction channel 38 facing away from the direction of the holding portion 48 is followed by a protruding from the housing face 40 longitudinal portion 50 of the Abziehlippe 44.
- the longitudinal section 50 In the undeformed basic position of the draw-off rib 44 shown in FIGS. 1 to 6, the longitudinal section 50 is configured in a straight line.
- the longitudinal section 50 is followed by a hook-like Abziehlippenfortsatz 52, which is inclined to the longitudinal section 50 and which forms a Abziehlippenkante 54 at its free end.
- the Abziehlippenkante 54 can be applied to a hard surface to be cleaned, so that the Abziehlippe 44 linearly contacts the hard surface to be cleaned.
- the support lip 46 also projects out of the housing end face 40. At its free end, the support lip 46 forms a support lip edge 56. In the undeformed basic position, the support lip edge 56 bears against the Abziehlippenkante 54.
- the support lip 46 has a support lip upper side 58 facing the pull-off rib 44 and a support lip lower side 60 facing away from the pull-off rib 54. From the support lip 46 extends in the direction of the support lip upper side 58, a wedge-shaped end face 62 on which the Abziehlippe 44 in the undeformed basic position by means of a complementarily designed to the end face 62 contact surface 64 rests flat.
- the contact surface 64 forms an inclined surface 68 inclined at an obtuse angle to an underside 94 of the longitudinal section 50. In the illustrated embodiment, the angle between the inclined surface 68 and the bottom 94 of the longitudinal portion 50 is about 135 °.
- the support lip 46 on the support lip top 58 on a plurality of protrusions 70 which are arranged symmetrically to a central axis 72 of the Saugdüsengephinuses 30, wherein the distance between two immediately adjacent elevations 70 with increasing distance from the central axis 72 increases.
- the elevations 70 form rib-like flow guide elements 74, which are arranged fan-shaped on the support lip top 58.
- the support lip 46 has a plurality of openings in the form of recesses 76, which are designed semicircular.
- the support lip 46 On the support lip lower side 60, the support lip 46 has a plurality of depressions 78, each of which opens into a recess 76.
- the Abziehlippe 44 defines together with the support lip 46, a suction chamber 80 which is delimited at a first side edge 82 of the Abziehlippe 44 by a first side wall 84 and at a second side edge 86 Abziehlippe 44 from a second side wall 88.
- the two side walls 84, 88 are integrally connected to the Abziehlippe 44.
- the distance between the first side edge 82 and the second side edge 86 defines the width of the peel lip 44.
- the Abziehlippe 44 has a the support lip 46 facing Abziehlippenoberseite 92 and the longitudinal portion 50 has the already mentioned, the support lip 46 facing bottom 94.
- the underside 94 is flat in the undeformed basic position of the Abziehlippe 44 and extends parallel to the central axis 72 of the Saugdüsengephinuses 30th
- the Abziehlippe 44 is reinforced in some areas. To this end, it has on the Abziehlippenoberseite 92 at a small distance to the first side edge 82, a first pair of reinforcing ribs 96, 98, and at a small distance from the second side edge 86, the Abziehlippe 44 on Abziehlippenoberseite 92, a second pair of reinforcing ribs 100, 102 on.
- the reinforcing ribs 96, 98, 100 and 102 are each formed identically, aligned parallel to the central axis 72 and extend with increasing height from the free end 90 of the Abziehlippe 44 to the housing end face 40, wherein they each form one of the housing end face 40 facing support surface 104, the is aligned perpendicular to the longitudinal axis 66 of the longitudinal portion 50.
- the distance AI occupied by the first pair of reinforcing ribs 96, 98 toward the first side edge 82 is identical to the distance A2 occupied by the second pair of reinforcing ribs 100, 102 to the second side edge 86.
- the distance is in each case about 4 to 8 mm.
- the distance between the two reinforcing ribs 96, 98 of the first pair of reinforcing ribs to each other in the illustrated embodiment is about 1 to 3 mm and is identical to the distance between the two reinforcing ribs 100, 102 of the second pair of reinforcing ribs to each other.
- the length LI of the protruding from the suction nozzle housing 30 region of the Abziehlippe 44 is in the illustrated embodiment at least 18 mm, preferably 20 to 30 mm, and the length L2 of the protruding from the suction nozzle 30 portion of the support lip 46 is at least 16 mm, preferably 20 to 30 mm.
- FIG. 7 illustrates the cleaning of a hard surface 106, wherein to achieve a simpler overview, only the suction nozzle 12 is shown schematically in a longitudinal section in the region of the central axis 72.
- the suction nozzle 12 can be moved along the hard surface 106 in a removal direction 108, in the illustrated embodiment from top to bottom, the Abziehlippenkante 54 and the support lip edge 56 contact the hard surface 106. Relative to the stripping direction 108, the support lip edge 56 is arranged in front of the Abziehlippenkante 54.
- the support lip edge 56 takes a distance from the Abziehlippenkante 54 due to the deformation of the support lip 46 and the deformation of the Abziehlippe 44 a.
- the Abziehlippenfortsatz 52 engages behind the support lip 46 relative to the stripping 108th
- the suction nozzle 12 When the suction nozzle 12 is moved along the hard surface 106 in the stripping direction 108, liquid adhering to the hard surface 106 accumulates in front of the support lip 46 and passes over the depressions 78 arranged on the support lip underside 60 and the recesses arranged on the support lip edge 56
- the suction nozzle 12 is of course connected to the base housing 14 of the Hartroisabsaug réelles 10 and the suction unit 18, a suction flow is generated under the action of the liquid located in the suction chamber 80 passes through the suction channel 38 to the separator 26. From the separation device 26, the liquid flows into the dirty liquid container 28.
- the Abziehlippe 44 contacts the hard surface to be cleaned 106 linearly even when the Abziehlippe 44 is deformed from its normal position, as illustrated in Figure 7 is.
- the linear contact ensures that the hard surface 106 can be cleaned streak-free, the cleaning result is virtually independent of the force with which the user presses the Abziehlippe 44 against the hard surface 106 and practically independent of the angle that the central axis 72 of Suction nozzle housing 30 occupies the surface to be cleaned 106.
- FIGS. 8 and 9 illustrate the cleaning of an edge region of a hard surface in the form of a window pane 110 bounded by a sealing strip 112. If the suction nozzle 12 is moved along the window pane 110, it may be the case that the pull-off lip 44 as well as the support lip 46 rest on the sealing strip 112 with its outer edge region. This can cause the support lip 46 and the Abziehlippe 44 in the immediately adjacent to the sealing strip 112 area of the window pane 110 stand out. The lifting off of the support lip 46 does not severely impair the cleaning result, but the lifting off of the draw-off lip 44 could result in liquid residues remaining on the window pane 110 in the region immediately following the sealing strip 112.
- the reinforcing ribs 96, 98, 100 and 102 are arranged at the Abziehlippenoberseite 92 at a small distance from the side edges 82, 86.
- the Abziehlippe 44 in the region of the reinforcing ribs 96, 98, 100 and 102 has a higher bending stiffness, since the reinforcing ribs 96, 98, 100 and 102 counteract a deformation of the Abziehlippe 44.
- FIG. 10 shows an alternative embodiment of a suction nozzle according to the invention, which is generally designated by reference numeral 120.
- the suction nozzle 120 is substantially identical to the suction nozzle 12 explained above.
- the suction nozzle 120 has in particular the suction nozzle housing 30 already explained above with a housing end face 40.
- a suction lip 124 is provided in the suction nozzle 120 shown schematically in FIG used, the width of which increases with increasing distance from the housing end face 40.
- the Abziehlippe 124 has a first side edge 126 and a second side edge 128, both of which are rectilinear and obliquely outwardly, so that the distance between the two side edges 126, 128 to each other, with increasing distance from the housing end face 40 evenly increased.
- the region of the pull-off lip 124 projecting from the suction nozzle housing 30 is trapezoidal.
- a support lip not shown in Figure 10 is used, with the width of the support lip 40 increases evenly with increasing distance from the housing end face.
- FIG. 11 A further alternative embodiment of a suction nozzle according to the invention is shown schematically in FIG. 11, which is generally designated by the reference numeral 130.
- the suction nozzle is largely identical to the suction nozzle 120 shown in FIG. 10.
- the suction nozzle 130 has a marking lip 134 whose first side edge 136 and second side edge 138 are curved in an arcuate outward direction.
- the suction nozzle 130 in addition to the Abziehlippe 134 a not shown in Figure 11 support lip.
- the support lip can also be outwardly curved. have curved side edges, thus showing virtually the same course as the side edges 136, 138 of the Abziehlippe 134th
- FIG. 12 shows a Abziehlippe 140 which is configured similar to the above-explained in detail Abziehlippe 44.
- the Abziehlippe 140 has a longitudinal portion 142, of which, similar to the Abziehlippe 44, a single Abziehlippenfortsatz 144 projects laterally.
- the Abziehlippenfortsatz 144 is configured substantially in the manner of a right triangle and has an inclined surface 146 which is aligned at an angle of about 135 ° to the bottom 148 of the longitudinal portion 142.
- the Abziehlippenfortsatz 144 has a front end surface 150 which is aligned at right angles to a median plane 152.
- the Abziehlippe 140 is designed substantially L-shaped.
- Figure 13 shows schematically a Abziehlippe 160, which also has a single Abziehlippenfortsatz 164. Unlike the squeegee 140, the squeegee 160 has a forward end surface having an upper end surface portion 166 and a lower end surface portion 168 that are angled toward one another.
- the upper end surface portion 166 is aligned parallel to an inclined surface 170 which projects from the underside 172 of a longitudinal portion 173 and is oriented at an angle of about 135 ° to the bottom 172, and the lower end surface portion 168, which together with the inclined surface 170, the Abziehlippenkante 174th the Abziehlippe 160 forms is perpendicular to the center plane 176 of the Abziehlippe 160 aligned.
- Figure 14 shows a squeegee 180 having a first squeegee extension 182 and a second squeegee extension 184.
- the first squeeze lip extension 182 projects downwardly from the lower side 186 of a longitudinal section 190 and the second Abziehlippenfortsatz 184 protrudes from the upper side 188 of the longitudinal section 190 upwards.
- the Abziehlippenfort instruments 182, 184 a common front end face 192 of the Abziehlippe 180, which is aligned perpendicular to a median plane 194 of the Abziehlippe 180.
- a bottom sloping surface 196 of the first peeling lip extension 192 extends from the bottom 186 to a first peeling lip edge 198, and an upper sloping surface 200 of the second peeling lip extension 184 extends from the top surface 188 to a second peeling lip edge 202.
- FIG. 15 schematically shows a pull-off lip 210 which is substantially T-shaped, with a first pull-out lip extension 212 projecting perpendicularly from a lower side 214 of a longitudinal section 215 and with a second pull-out lip extension 216 projecting perpendicularly from an upper side 218 of the longitudinal section 215.
- FIG. 16 schematically illustrates a peel-off lip 230, in which a first peel-off lip extension 232 and a second peel-off lip extension 234 are aligned obliquely to a center plane 236 and are substantially rectangular in shape.
- the Abziehlippe 230 is configured substantially Y-shaped.
- FIG. 17 schematically shows a pull-off rib 240 with a first pull-out lip extension 242 which protrudes from a lower side 244 of a longitudinal section 254 and forms a first arcuate transitional surface 246 which is of concave design and adjoins the underside 244.
- the Abziehlippe 240 a second Abziehlippenfortsatz 248, which protrudes from an upper side 250 of the longitudinal portion 254 and a second arcuate transition surface 252 forms, which is concave and connects to the top 250.
- the two end surfaces 256, 258 are aligned at an obtuse angle to each other and each configured just.
- FIG. 18 schematically shows a pull-off rib 270 with a first pull-off lip extension 272, which has a first inclined surface 276 protruding from the underside 274 of a longitudinal section 290, and with a second pull-out lip extension 278, which protrudes from an upper side 280 of the longitudinal section 290 and has a second inclined surface 282 , which connects to the top 280.
- the first squeegee extension 272 forms, together with the longitudinal portion 290 of the squeegee 270, a lower end surface 292, and the second squeeze projection 278 forms, together with the longitudinal portion 290, an upper end surface 294.
- the two end surfaces 292, 294 are each configured planar and aligned at an obtuse angle to each other.
- FIG. 19 schematically illustrates a peel lip 300 which has a first pull-out lip extension 302 and a second pull-out lip extension 304, wherein the two pull-out lip extensions 302, 304 together with a longitudinal section 306 of the pull-off lip 300 form an arcuate, concavely configured end face 308.
- FIG. 20 shows schematically a peel lip 320 in which a first pull-out lip extension 322 together with a second pull-out lip extension 324 and a longitudinal section 326 form a rectilinear end face 330 oriented perpendicular to a center plane 328.
- the Abziehlippen 140 and 160 shown in Figures 12 and 13 may have on their Abziehlippenoberseite at a distance from the respective side edges reinforcing ribs, in particular at a distance from each side edge in each case a pair of reinforcing ribs.
- Reinforcing ribs can also be used in the Abziehlippen shown in Figures 14 to 20, which are each arranged at a distance from a side edge. It can be provided that reinforcing ribs are arranged both on the Abziehlippenoberseite and on the Abziehlippenunterseite, which stand less far from the bottom or the top of the respective longitudinal section than the Abziehlippenkanten the Abstziehlippenfort instruments, so as to ensure that the Abziehlippenkanten the hard surface to be cleaned can be pressed without the reinforcing ribs contacting the hard surface.
Landscapes
- Nozzles For Electric Vacuum Cleaners (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Cleaning In General (AREA)
- Ink Jet (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16777638T PL3518720T3 (en) | 2016-09-28 | 2016-09-28 | Suction nozzle and hard-surface suction apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2016/073129 WO2018059679A1 (en) | 2016-09-28 | 2016-09-28 | Suction nozzle and a hard-surface suction device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3518720A1 true EP3518720A1 (en) | 2019-08-07 |
EP3518720B1 EP3518720B1 (en) | 2020-07-01 |
EP3518720B2 EP3518720B2 (en) | 2024-06-05 |
Family
ID=57083285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16777638.4A Active EP3518720B2 (en) | 2016-09-28 | 2016-09-28 | Suction nozzle and hard-surface suction apparatus |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3518720B2 (en) |
CN (1) | CN109640766B (en) |
PL (1) | PL3518720T3 (en) |
WO (1) | WO2018059679A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112442964A (en) * | 2019-09-05 | 2021-03-05 | 庐江县百树园食品有限公司 | Poultry is slaughtered and uses debris cleaning device |
CN112932357B (en) * | 2019-12-10 | 2024-05-24 | 苏州诚河清洁设备有限公司 | Floor nozzle for wet surface cleaning device and wet surface cleaning device |
EP3871578B1 (en) * | 2020-02-27 | 2023-08-23 | Vestel Elektronik Sanayi ve Ticaret A.S. | Nozzle for a cleaning device |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB504083A (en) † | 1938-05-30 | 1939-04-19 | Constant Adolphe Antoine Josep | A new or improved scraper or squeegee |
FR2742682B1 (en) | 1995-12-22 | 1998-03-13 | Superba Sa | ELECTRIC VAPOR CLEANING APPARATUS FOR SMOOTH SURFACES SUCH AS WINDOWS |
US5920947A (en) † | 1997-05-16 | 1999-07-13 | Goldtime Products, Llc. | Apparatus for removing standing water from flat and contoured surfaces |
US20030028995A1 (en) | 2001-07-05 | 2003-02-13 | Yasushi Ikeda | Squeegee blades for removing cleaning solutions from flat surfaces by manual and motorized cleaning equipment |
US7185388B2 (en) † | 2002-08-06 | 2007-03-06 | Harper Brush Works, Inc. | Power wave floor squeegee and handle connector |
DE102008004965B3 (en) * | 2008-01-11 | 2009-05-14 | Alfred Kärcher Gmbh & Co. Kg | Portable hard surface suction device |
DE202008018112U1 (en) * | 2008-01-11 | 2011-08-01 | Alfred Kärcher Gmbh & Co. Kg | suction nozzle |
WO2010018312A2 (en) * | 2008-08-11 | 2010-02-18 | Winddrop | Smooth surface scraper |
DE102011005211B4 (en) | 2011-03-07 | 2013-12-05 | Karl Göttler | Hand cleaner for smooth surfaces |
EP2964065A1 (en) * | 2013-03-04 | 2016-01-13 | Ecodrop | Suction device designed to suck air and liquid from a planar surface, and scraper blade for such a device |
DE102013106238A1 (en) | 2013-06-14 | 2014-12-18 | Jacques Beij | Attachable tank |
WO2015007324A1 (en) * | 2013-07-18 | 2015-01-22 | Alfred Kärcher Gmbh & Co. Kg | Portable hard-surface cleaning device |
CN104367266B (en) | 2013-08-13 | 2018-12-25 | 胡佛有限公司 | Hand-held cleaners |
DE102013021277A1 (en) | 2013-12-17 | 2015-07-02 | Nilfisk-Advance A/S | Portable hard surface suction device |
EP2929819A1 (en) | 2014-02-27 | 2015-10-14 | Stefan Dietz | Window cleaning device with storage container |
EP3185741B1 (en) | 2014-08-29 | 2019-10-09 | Alfred Kärcher SE & Co. KG | Vacuum nozzle and hard surface vacuum cleaner |
DE202016100286U1 (en) | 2016-01-22 | 2016-02-03 | Leifheit Ag | suction nozzle |
-
2016
- 2016-09-28 PL PL16777638T patent/PL3518720T3/en unknown
- 2016-09-28 CN CN201680088630.6A patent/CN109640766B/en active Active
- 2016-09-28 WO PCT/EP2016/073129 patent/WO2018059679A1/en unknown
- 2016-09-28 EP EP16777638.4A patent/EP3518720B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
PL3518720T3 (en) | 2020-11-30 |
EP3518720B2 (en) | 2024-06-05 |
EP3518720B1 (en) | 2020-07-01 |
CN109640766B (en) | 2021-05-14 |
CN109640766A (en) | 2019-04-16 |
WO2018059679A1 (en) | 2018-04-05 |
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