EP2638838B1 - Appareil d'aspiration pour surfaces dures - Google Patents

Appareil d'aspiration pour surfaces dures Download PDF

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Publication number
EP2638838B1
EP2638838B1 EP13169571.0A EP13169571A EP2638838B1 EP 2638838 B1 EP2638838 B1 EP 2638838B1 EP 13169571 A EP13169571 A EP 13169571A EP 2638838 B1 EP2638838 B1 EP 2638838B1
Authority
EP
European Patent Office
Prior art keywords
suction
hard surface
accordance
cleaner
suction cleaner
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.)
Active
Application number
EP13169571.0A
Other languages
German (de)
English (en)
Other versions
EP2638838A1 (fr
Inventor
Michael Scharmacher
Martin Schmidgall
Michael Schütz
Günter RAUSCHER
Sandra Bartel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2638838A1 publication Critical patent/EP2638838A1/fr
Application granted granted Critical
Publication of EP2638838B1 publication Critical patent/EP2638838B1/fr
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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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0028—Security means, e.g. float valves or level switches for preventing overflow
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0019—Details of the casing
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids

Definitions

  • the invention relates to a Hart vomabsaug réelle with the features of the preamble of claim 1.
  • Hart vomabsaugowski For aspiration of hard surfaces, such as tiled walls or floors, and also for removing a water film of windows or glass doors Hart vomabsaug mar can be used, which have a vacuum source in the form of a suction unit and a suction nozzle, which is in flow communication with the suction unit and the suction mouth the suctioned hard surface can be created.
  • a suction flow By means of the suction unit then a suction flow can be achieved, so that dirt and water can be sucked through the suction mouth of the hard surface and transferred to a dirt container of Hartvidabsaug experts.
  • Such Hartvidabsaugered with a suction nozzle are for example from the U.S. Patents 3,254,360 and 3,118,165 known.
  • an accessory for a vacuum cleaner which has a suction nozzle with a housing and a liquid container.
  • the housing of the suction nozzle has a pipe section which dips into the liquid container and has an inlet channel for a mixture of air and liquid and an outlet channel for air.
  • a separation device in the form of a baffle wall is arranged, at which the liquid entrained by the liquid-air mixture can be deposited within the liquid tank, whereas the air can flow around the baffle wall and reach a suction unit via the outlet channel.
  • a spray extraction device in which a dirty liquid container is used, in which a separator is integrated.
  • a mixture of liquid and air can flow into the dirty liquid container, wherein the entrained liquid separates at the separator inside the dirty liquid tank, and the air can then pass through a connection chamber and a hose to a suction unit.
  • Object of the present invention is to develop a Hartvidabsaug réelle of the type mentioned in such a way that forms an effective suction flow in the suction mouth with the lowest possible energy consumption of the suction unit, the suction flow is not affected by the increasing during operation of Hartvidabsaug réelles liquid level in the dirty liquid tank and the Hartvidabsaug réelle can also be operated in a tilted to the vertical position.
  • the Hart vomunabsaugieres In order to avoid that the suction flow during operation of the Hartvidabsaug advocatess is affected by the increasing liquid level in the dirty liquid tank, the Hartvidabsaug réelle upstream of the suction unit on a deposition chamber which receives the separator and which is connected via a drain opening with the dirty liquid tank.
  • the suction flow runs outside of the dirty liquid tank and is therefore not affected by the level of liquid accumulated in the dirty liquid tank.
  • a separate separation chamber is used, which receives the separation device and is arranged in the flow path between the suction nozzle and the suction unit.
  • the separation device can be designed in the form of a separation wall, which is preferably arcuately curved in order to minimize flow losses.
  • the separation wall meets a liquid-air mixture on sucking a water film from a hard surface.
  • the liquid separates on the separation wall and is transferred via the discharge opening of the deposition chamber in the dirty liquid tank.
  • the air flows around the separation wall and passes to the suction unit and can be transferred from this via molded into the housing of Hart vomabsaugowskis exhaust openings to the outside.
  • the rear end region of the suction channel facing away from the suction mouth and / or the front end region of the suction unit connecting the suction unit with the separation chamber are at least partially surrounded within the separation chamber by at least one intermediate storage area for separated liquid.
  • the Provision of at least one staging area allows the user to operate the hard surface exhaust not only in an upright position but also in a vertical inclined position; In particular, the Hartvidabsaug réelle can also be operated overhead so that the suction nozzle is arranged below the suction unit.
  • Liquid deposited within the deposition chamber may, in such applications, initially accumulate within the deposition chamber in one or more intermediate storage areas surrounding the rear end region of the suction channel dipping into the separation chamber and / or the front end region of the suction line immersed in the separation chamber.
  • the liquid can flow from the at least one intermediate storage area via the drain opening in the dirty liquid tank.
  • the Hartvidabsaug réelle is characterized not only by an effective cleaning effect, but also the Hartvidabsaug réelle for sucking a film of water windows can be performed in the same way along the window, as is known from the handling of conventional window cleaning equipment, in which the window applied liquid is removed manually by means of a rubber lip having puller from the window pane.
  • An advantageous embodiment of the Hart vomabsaug réelles is characterized by a rechargeable power source, in particular a lithium-ion battery. This facilitates the handling of the device, especially if the device is designed to be portable and can be held by the user with one hand.
  • the rechargeable energy source is preferably arranged in the housing of the Hartvidabsaug réelles.
  • the Hartvidabsaug réelle invention is designed in particular as a portable Hartvidabsaug réelle, for example as a device for suction of window panes, in which a liquid film can be sucked from the window pane.
  • the Hartvidabsaug réelle has a suction unit, a dirty liquid tank and a separator for separating liquid from a sucked liquid-air mixture.
  • the Hartvidabsaug réelle invention includes the aforementioned suction nozzle. By means of the suction nozzle, with low energy consumption of the suction unit in the region of the suction mouth, an effective suction flow can be achieved, so that liquid droplets can be effectively sucked off a hard surface. From the suction flow, the liquid droplets are entrained.
  • the arcuately curved side walls also have the advantage that within the suction channel a suction flow can be achieved with the lowest possible gradient of the flow velocity. As a result, the risk can be minimized that in the suction channel little or no moving air strikes heavily moving air and thereby form vortex. Such vortices represent areas of the suction flow with a very low flow velocity (so-called "dead spots") and can be a deposit of dirt particles or drops of water within the suction channel result, so that the suctioned in the region of the suction mouth particles and droplets are insufficiently transported through the entire suction channel.
  • the risk of vortex formation within the suction channel is significantly reduced by the provision of arcuately curved side walls. Thus, not only flow losses can be reduced but also the risk of entrainment of entrained particles and liquid droplets.
  • the Hartvidabsaug réelle on a receiving shaft into which the suction mouth remote from the end of the suction channel is used.
  • the receiving shaft thus holds the rear end of the suction channel.
  • the Hart vomabsaug réelle is preferably equipped with a handle. This can be hollow, so that a suction can be passed through the handle. This gives the Hart vomabsaug réelle a particularly compact design.
  • the rear end region of the suction channel dips into a receiving shaft projecting into the deposition chamber, wherein the receiving shaft and at least one outer wall of the deposition chamber defines at least one intermediate storage region.
  • the receiving shaft forms a mechanically resilient support for the rear end region of the suction channel and, in combination with an outer wall of the deposition chamber, at least one intermediate storage region in which liquid deposited within the separation chamber can accumulate when the hard surface extraction device is inclined to the vertical or is operated overhead ,
  • the front end region of the suction line protrudes into the deposition chamber and is surrounded within the separation chamber in the circumferential direction by an annular intermediate storage region. This allows a structurally simple way to provide a relatively large volume buffer area within the deposition chamber.
  • At least one intermediate storage area widens in the direction of the separating device. This facilitates the draining of liquid initially accumulated in a buffer storage area into the dirty liquid tank.
  • the side walls of the suction channel are curved in an arc shape practically over its entire length.
  • the side walls are starting from the suction mouth adjacent front end to its suction mouth facing away from the rear end curved arcuate; they have at best at their front and / or rear end on a rectilinear wall section. It has been shown that this flow losses can be greatly reduced.
  • the side walls of the suction channel are aligned parallel to the center axis of the suction nozzle in their front end region facing the suction mouth, perpendicular to a center axis of the suction nozzle and in their rear end region remote from the suction mouth.
  • the side walls can form a rear wall of the suction channel opposite the suction mouth, and in their rear end region they can be aligned parallel to the flow direction of the suction flow. It has been shown that this can effectively counteract the formation of vortices within the suction channel.
  • the side walls of the suction channel can be curved in a circular arc with the same radius of curvature.
  • the radius of curvature of the side walls changes from their front end area to their rear end area.
  • a continuous change in the radius of curvature of the side walls from their front to their rear end region has proved to be particularly advantageous.
  • the side walls in their front and in their rear end region each have a very large radius of curvature, which preferably decreases continuously in the direction of a central portion of the suction channel.
  • An additional reduction of flow losses within the suction channel and an additional reduction in the risk of vortex formation is achieved in a preferred embodiment of the invention in that at least in a longitudinal section of the suction channel, the distance of the ceiling wall is larger from the bottom wall in the adjacent to the side walls lateral edge regions of the suction channel than in the central region of the suction channel.
  • the flow cross section of the suction channel thus increases starting from the central region in the direction of the lateral edge regions. This has the consequence that the flow velocity of the suction flow in the edge regions is lower than in the central region.
  • the reduced flow velocity in the edge regions results in a reduced friction of the suction flow on the side walls, since the friction is dependent on the flow velocity of the suction flow.
  • the bottom wall and / or the top wall of the suction channel is arcuately curved into the interior of the suction channel at least in a longitudinal section of the suction channel in a cutting plane extending transversely to the central axis of the suction nozzle.
  • the bottom wall and / or the ceiling wall is arcuately curved in a transverse to the central axis of the suction nozzle cutting plane.
  • the bottom wall and / or the ceiling wall thus forms a kind of "dent" or constriction of the suction channel.
  • the bottom wall and / or the top wall are at least in a longitudinal section of the suction channel in a direction parallel to the central axis of the suction nozzle extending cutting plane arcuately curved in the interior of the suction channel.
  • the suction channel can thereby have a smaller flow cross-section in a region between the suction mouth and the end remote from the suction mouth than in the region of the suction mouth and in the region of the end remote from the suction mouth.
  • the flow cross-section in the direction of the suction mouth facing away from the end of the suction channel can thus first shrink, in particular, a continuous reduction can be provided, and after passing through a narrowest flow cross-section, this can increase in the direction of the end remote from the suction mouth, in particular, a continuous enlargement can be provided.
  • a particularly effective cleaning effect can be achieved with a relatively small-sized suction unit, wherein virtually no dirt particles or liquid droplets are deposited within the suction channel.
  • the suction nozzle has two flexible wiper lips which define the suction mouth between them.
  • the wiper lips can in this case have a different material thickness.
  • the material thickness of a first wiper lip may be, for example, less than half, in particular less than one third of the material thickness of the second wiper lip.
  • one of the two wiper lips has recesses at its free front edge projecting from the suction channel.
  • the recesses are open to the front edge.
  • the two leading edges define between them the suction mouth, and through the recesses on one of the two leading edges flow passages are defined in which the suction flow has a high flow velocity, so that dirt particles and / or liquid droplets can be particularly effectively entrained and sucked into the suction channel.
  • the recesses of one wiper lip are covered by the leading edge of the other wiper lip.
  • the leading edge of the other wiper lip may have a straight course. This wiper lip can thereby act as Abziehlippe, in front of the liquid to be sucked accumulates, which can be sucked through the suction mouth.
  • the two wiper lips in the area of the suction mouth, facing the other wiper lip has a multiplicity of elevations.
  • the protrusions are spacers that ensure that the scraper lips, even if they are directly adjacent to each other, form between them flow passages for the suction flow and entrained dirt particles and liquid droplets.
  • At least one wiper lip is replaceably held on a housing of the suction nozzle. This facilitates the assembly and possibly also the repair of the suction nozzle.
  • one of the two preferably used for use Abstreiflippen be turned relative to the other wiper lip, when the voltage applied to the hard surface area of the leading edge is worn. The life of the Hart vomabsaug réelles can be extended.
  • the suction nozzle comprises a housing having a first and a second half-shell, which receive an air guide part between them, wherein the first and / or the second half-shell and the air guide part define the suction channel.
  • the suction channel is not defined exclusively by the housing of the suction nozzle, but it additionally comes an air guide member is used, which is arranged between the two half-shells of the suction nozzle housing.
  • the air guide part allows an optimization of the geometry of the suction channel, without thereby affecting the external appearance of the suction nozzle.
  • the outer shape of the suction nozzle can therefore to the rest Shape of Hart vomabsaugauss be adapted, without taking into account the geometry of the suction channel.
  • the shape of the air guide part in turn can be selected with regard to an optimal suction flow, without taking into account the external shape of the suction nozzle.
  • a cross-sectional constriction of the suction channel can be achieved without this being directly recognizable on the housing of the suction nozzle.
  • the air guide member may be inserted in a preferred embodiment of the invention in the assembly of the suction nozzle between the two half-shells, and then the two half-shells, preferably releasably connected to each other.
  • a snap-action, latching or screw connection can be used for connection of the two half-shells.
  • a first flexible wiper lip is integrally formed on the first half shell of the housing.
  • the first half-shell and the first flexible wiper lip form a one-piece injection-molded part with two components.
  • the first half-shell is produced in combination with the first flexible wiper lip in a two-component injection molding process, wherein different plastics can be used.
  • the first half-shell may for example be made of an ABS material, and for the first flexible wiper lip, a rubber-like plastic material may be used.
  • a second flexible wiper lip is clamped in a preferred embodiment between the air guide member and the second half-shell.
  • the air guide part and the second half-shell together form a receptacle which receives a suction channel facing the rear edge of the second flexible wiper lip.
  • the trailing edge forms a positive connection with the receptacle.
  • a portable Hart vomabsaug réelle 10 is shown schematically, can be sucked with the liquid from a hard surface, such as water from a window pane.
  • the hard surface suction device 10 can be held by the user with one hand on a handle 12 and guided in the manner of a conventional, a rubber lip having puller on the hard surface along.
  • the Hart vomunabsaug réelle 10 includes a base housing 14, which forms the handle 12 and a suction unit 16 with a suction turbine 17 and an electric motor 18 receives. Within the base housing 14 is at least one rechargeable battery 19, in particular a lithium-ion battery arranged to supply power to the electric motor 18. On the underside, the base housing 14 forms a base 21, so that the Hart vomabsaug réelle 10 in an upright position, as shown in the FIGS. 1 and 2 is shown, can be placed on a floor space.
  • a dirty fluid tank 23 Disposed laterally next to the base housing 14 is a dirty fluid tank 23 which can be removed from the main housing 14 and into which a filling device 25 projects with a discharge channel 26 and a ventilation channel 27 aligned parallel to the discharge channel 26.
  • the ventilation channel 27 protrudes from the top side via the drainage channel 26.
  • the side of the filling device 25, the dirty liquid tank 23 on its side facing away from the handle 12 on a means of a lid 28 tightly closable drain opening 29.
  • the deposition chamber 33 On the upper side closes to the base housing 14 and the dirty liquid tank 23 to a deposition chamber 33, which is releasably connected via a releasable latching connection with the base housing 12. To release the latching connection 33 push buttons 34 are arranged on the outside of the deposition chamber.
  • the deposition chamber 33 has outer walls in the form of a subsequent to the dirty liquid tank 23, concavely curved front wall 36, a subsequent to the handle 12, convex curved rear wall 37 and in the form of the front wall 36 integral with the rear wall 37 connecting side walls, of which in the drawing, namely in FIG. 1 , only one side wall 38 can be seen.
  • a separation device in the form of a baffle 40 is arranged, which is arcuately curved.
  • the deposition chamber 33 is delimited by a ceiling wall 42 connecting the front wall 36, the rear wall 37 and the two side walls 38 in one piece, to which a receiving shaft 43 projecting into the deposition chamber 33 is integrally formed.
  • a suction nozzle 50 connects to the deposition chamber 33, which is detachably connected to the deposition chamber 33.
  • a latching connection is used with an internally formed in the front wall 36 of the deposition chamber 33 locking receptacle 51 into which a latching hook 52 engages, which is screwed by means of a connecting screw 53 with a housing 55 of the suction nozzle 50.
  • the housing 55 is formed by a first half-shell 56 adjoining the front wall 36 of the deposition chamber 33 and a second half-shell 57 adjoining the rear wall 37 of the deposition chamber 33.
  • the two half-shells 56 and 57 receive between them an air guide part 59, which defines a suction channel 60 in combination with the first half-shell 56.
  • a first flexible wiper lip 62 is integrally formed on the first half shell 56, on the front edge 63 facing away from the suction channel 60 a second wiper lip 65 bears with a front edge 66 facing away from the suction channel 60. With its suction channel 60 facing the rear edge 67, the second wiper lip 65 is clamped between the second half-shell 57 and the air guide member 59.
  • the second half-shell 57 forms in this case, in combination with the air guide part 59, a receptacle 69, which receives the trailing edge 67 of the second wiper lip 65 in a form-fitting manner.
  • the two wiper lips 62, 65 define a suction mouth 70, which is adjoined by the suction channel 60, which, with its rear end region 72 facing away from the suction mouth 70, dips into the receiving shaft 43 of the deposition chamber 33.
  • a holding element 75 is arranged, which carries a flat baffle plate 76 at a distance from the mouth opening 73 within the deposition chamber 33.
  • FIG. 4 3 which shows a plan view of the first half-shell 56 with the first wiper lip 62 formed thereon
  • the leading edge 63 of the first wiper lip 62 is provided with recesses by forming a plurality of approximately semicircular depressions 78 in the front edge 63 equidistantly from one another.
  • approximately triangular projections 79 are arranged between adjacent depressions 78 on the upper side, that is to say facing the second wiping lip 65.
  • the depressions 78 and the elevations 79 form flow passages for a suction flow, which is produced by the suction unit 16 during the operation of the hard surface suction device 10. How out FIG.
  • the protrusions 79 are arranged on both sides of a central axis 80 of the suction nozzle 50, wherein they starting from the central axis 80 on both sides in each case over a quarter of the total width of the first wiper lip 62 are distributed.
  • the outer end portions of the first wiper lip 62 are free of elevations 79. In these outer end areas, however, recesses 78 are located in the front edge 73 as well as in the central area.
  • the suction channel 60 this is in particular from the FIGS. 7 and 8th clearly, has a bottom wall 82, which is formed by a central region of the first half-shell 56 and the first wiper lip 62.
  • the suction channel 60 has a top wall 83, which is formed by the air guide member 59 and the second wiper lip 65.
  • the suction channel 60 comprises arcuately curved side walls 84, 85, which are formed by the air guide member 59 and are integrally connected to the ceiling wall 83.
  • the side walls 84 and 85 each have a groove 88 and 89, in which an upper side, that is, the second half-shell 57 facing spring 91 and 92 of the first half-shell 56 dips as well a subsequent to the spring 91 and 92, on the upper side of the first wiper lip 62 formed spring 94 and 95.
  • the arcuate course of the side walls 84 and 85 is in particular from the corresponding arcuate course of the associated springs 91, 92 and 94, 95 from FIG. 4 clear.
  • the side walls 84 and 85 in their suction mouth 70 facing the front end portion 97 and 98 are aligned perpendicular to the central axis 80 of the suction nozzle 50; and in their suction end 70 facing away from the rear end portion 101 and 102, the side walls 84 and 85 are aligned parallel to the central axis 80.
  • the side walls 84, 85 approach in the direction away from the suction mouth 70 continuously, with its radius of curvature changes continuously, such that the radius of curvature of the side walls 84, 85 in the front end portions 97, 98 and in the rear end regions 101, 102 is practically infinite, whereas it assumes a smallest value in a central region in the longitudinal direction of the suction channel 60.
  • the side walls 84 and 85 practically a rear wall of the suction channel 60, which faces the suction mouth 70, and with their rear end portions 101 and 102, the side walls 84 and 85 parallel to the longitudinal direction of the suction channel 60 and thus parallel to the forming in the suction channel 60 suction flow.
  • the suction channel 60 is shown in section planes oriented perpendicular to the central axis 80. It is clear that the top wall 83 is curved transversely to the central axis 80 arcuately into the interior of the suction channel 60. This has the consequence that the distance occupied by the top wall 83 to the bottom wall 82 in the adjacent to the side walls 84 and 85 edge portions of the suction channel 60 is greater than in the central region of the suction channel 60. Starting from the central area thus widens As a result, the suction flow in the sidewalls 84, 85 adjacent edge regions of the suction channel 60 has a lower flow velocity than in the central region of the suction channel 60.
  • the flow cross-section is also sufficiently large in the side walls 84, 85 adjacent edge regions of the suction channel 60 that sucked into the suction mouth 70 dirt particles and liquid droplets reliably carried by the suction flow and not in the suction channel 60 are deposited.
  • the formation of vortices and thus the formation of "dead spots" in which the flow velocity is very low or even zero can be avoided. There is therefore no risk that 60 dirt particles or liquid droplets are deposited within the suction channel. Instead, they are entrained by the suction flow which forms and are transferred from the suction mouth 60 into the deposition chamber 33.
  • FIG. 6 shows the suction channel 60 in a direction parallel to the central axis 80 extending cutting plane. Based on this sectional plane, the bottom wall 82 is curved arcuately into the interior of the suction channel 60, and also the ceiling wall 83 has a similar arcuate course. Relative to the sectional plane running parallel to the central axis 80, the suction channel widens starting from a central region 104 in relation to its longitudinal extension. It has been shown that this additionally counteracts the formation of vertebrae and thus areas with a very low flow velocity within the suction channel 60 can.
  • the deposition chamber 33 is acted upon by the suction unit 16 with negative pressure.
  • the suction unit 16 via a handle 12 by cross-suction line 105 with the deposition chamber 33 in flow communication.
  • a mouth region 107 of the suction line 105 is designed in the form of a pipe socket 108 and protrudes into the deposition chamber 33 on the side of the impact wall 40 facing away from the rear end region 72 of the suction channel 60.
  • the mouth opening 109 of the suction line 106 is covered by the convexly curved in the direction of the suction channel 60 baffle 40.
  • a suction flow is formed via the suction channel 60, the separation chamber 33 and the suction line 105.
  • the sucked suction air can escape via laterally molded into the base housing 14 exhaust openings 111 from the base housing 14.
  • the Hart vomunabsaug réelle 10 can be performed on the hard surface along the hard surface in the manner of a puller for cleaning a hard surface, in particular a window or a glass door along for sucking liquid.
  • a liquid-air mixture passes through the suction port 70th and the suction channel 60 into the deposition chamber 33 and first encounters the spaced apart from the mouth opening 73 of the suction channel 60 baffle plate 76, at which a part of the entrained liquid separates. Subsequently, the liquid-air mixture meets the baffle 40, at which the remaining entrained liquid separates, whereas the sucked air flows around the baffle 40 and is guided via the suction line 105 to the suction unit 16.
  • the separated within the deposition chamber 33 liquid can flow through the drain passage 26 into the dirty liquid tank 23.
  • the deposition chamber 33 has a drain opening 113, on which a drain funnel 114 is arranged.
  • the discharge funnel 114 tapers in the direction of the dirty liquid tank 23.
  • Below the discharge funnel 114 the filling device 25 with the discharge channel 26 is arranged.
  • the ventilation channel 27 passes through the discharge funnel 114 and projects into the deposition chamber 33.
  • the Hart vomag réelle 10 is shown in an upright position, in which the suction nozzle 50 occupies a position above the suction unit 16 relative to the vertical. If the Hartvidabsaug réelle 10 is guided in this position on a hard surface to be sucked along, so can be within the deposition chamber 33 separated liquid readily to the drain opening 113 and pass through this in the dirty liquid tank 23.
  • the Hartvidabsaug réelle 10 is operated in a lying position, in which the suction nozzle 50 is arranged relative to the vertical substantially at the level of the suction unit 16, or the Hartvidabsaug réelle 10 is operated overhead so that the suction nozzle 50 relative to the vertical below the suction unit 16, so deposited within the deposition chamber 33 separated liquid can first accumulate in intermediate storage areas 117, 118, 119 of the deposition chamber 33 until the Hartvidabsaug réelle 10 again in the in the FIGS. 1 and 2 shown upright position is operated.
  • a first staging area 117 is located between the front wall 36 of the deposition chamber 33 and the receiving well 43, and a second buffer storage area 118 is positioned between the rear wall 37 of the deposition chamber 33 and the receiving well 43.
  • Both intermediate memory areas 117, 118 extend continuously in the direction of the baffle 40.
  • the two intermediate memory areas 117, 118 extend in the peripheral direction in each case over a part of the rear end area 72 of the suction channel 60.
  • a third intermediate storage region 119 extends annularly over the entire circumference of the mouth region 107 of the suction line 105 within the separation chamber 33.
  • the third intermediate storage region 119 also widens continuously in the direction of the impact wall 40.
  • the first and second intermediate storage areas 117 and 118 receive liquid deposited in the deposition chamber 33, particularly when the hard surface suction device 10 is in the upside-down position, and the third intermediate storage area 119 absorbs liquid deposited in the deposition chamber 33, in particular when the hard surface suction device 10 is in a horizontal position There is a risk that separated liquid can reach the suction mouth 70 via the suction channel 60. If the Hartvidaug réelle 10 then operated again in an upright position, the liquid accumulated in the meantime flows from the intermediate storage areas 117, 118, 119 and passes through the drain opening 113 and the drain channel 26 into the dirty liquid tank 23rd
  • the Hart vomunabsaug réelle 10 can thus be operated in any position relative to the vertical, wherein in the deposition chamber 33 separated liquid can either enter directly into the dirty liquid tank 23, but it is first stored in intermediate storage areas 117, 118 and 119 of the deposition chamber 33 until the Hart vomabsaug réelle 10 again assumes an upright position.
  • a relatively small-sized power supply of the suction unit 16 is required because the suction channel 60 has only very low flow losses, and moreover there is virtually no risk that detected within the suction channel 60 of the suction flow Deposit dirt particles or liquid droplets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • External Artificial Organs (AREA)
  • Cleaning In General (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (23)

  1. Appareil d'aspiration pour surfaces dures (10) comprenant un groupe d'aspiration (16), un réservoir de liquide sale (23) et un dispositif de séparation (40) servant à séparer le liquide d'un mélange aspiré de liquide et d'air, et une buse d'aspiration (50) qui comprend une bouche d'aspiration (70) à laquelle se raccorde un canal d'aspiration (60), le groupe d'aspiration (16), pour former un courant d'aspiration, pouvant être raccordé à l'extrémité du canal d'aspiration (60) opposée à la bouche d'aspiration (70), et le canal d'aspiration (60) comprenant une paroi inférieure (82) et une paroi supérieure (83) qui sont reliées l'une à l'autre par l'intermédiaire de parois latérales (84, 85) arquées, caractérisé en ce que l'appareil d'aspiration pour surfaces dures (10) comprend en amont du groupe d'aspiration (16) une chambre de séparation (33) qui loge le dispositif de séparation (40) et qui est reliée au réservoir de liquide sale (23) par l'intermédiaire d'une ouverture d'évacuation (113), et en ce que la zone d'extrémité arrière (72) du canal d'aspiration (60) opposée à la bouche d'aspiration (70) et/ou la zone d'extrémité avant (707), tournée vers la bouche d'aspiration (70), d'une conduite d'aspiration (105) reliant le groupe d'aspiration (16) à la chambre de séparation (33) sont entourées à l'intérieur de la chambre de séparation (33) dans la direction périphérique au moins en partie par au moins une zone d'accumulation intermédiaire (117, 118, 119) pour le liquide séparé.
  2. Appareil d'aspiration pour surfaces dures (10) selon la revendication 1, caractérisé en ce que l'appareil d'aspiration pour surfaces dures (10) comprend une source d'énergie renouvelable (19).
  3. Appareil d'aspiration pour surfaces dures (10) selon la revendication 1 ou 2, caractérisé en ce que l'appareil d'aspiration pour surfaces dures (10) est portatif.
  4. Appareil d'aspiration pour surfaces dures (10) selon la revendication 1, 2 ou 3, caractérisé en ce que l'appareil d'aspiration pour surfaces dures (10) comprend un puits de réception (43) dans lequel peut être insérée la zone d'extrémité arrière (72) du canal d'aspiration (60) opposée à la bouche d'aspiration (70).
  5. Appareil d'aspiration pour surfaces dures (10) selon la revendication 4, caractérisé en ce que le puits de réception (43) et au moins une paroi extérieure (36, 37) de la chambre de séparation (33) définissent au moins une des zones d'accumulation intermédiaire (147, 118).
  6. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone d'extrémité avant (107) de la conduite d'aspiration (105) fait saillie à l'intérieur de la chambre de séparation (33) et est entourée à l'intérieur de la chambre de séparation (33) dans la direction périphérique par une des zones d'accumulation intermédiaire (119) annulaires.
  7. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une des zones d'accumulation intermédiaire (117, 118, 119) s'élargit en direction du dispositif de séparation (40).
  8. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les parois latérales (84, 85) du canal d'aspiration (60) sont arquées quasiment sur toute leur longueur.
  9. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les parois latérales (84, 85) du canal d'aspiration (60), dans leur zone d'extrémité avant (97, 98) tournée vers la bouche d'aspiration (70), sont orientées perpendiculairement à un axe médian (80) de la buse d'aspiration (50) et, dans leur zone d'extrémité arrière (101, 102) opposée à la bouche d'aspiration (70), sont orientées parallèlement à l'axe médian (80) de la buse d'aspiration (50).
  10. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins dans une partie longitudinale du canal d'aspiration (60), l'écart entre la paroi supérieure (83) et la paroi inférieure (82), dans les parties marginales latérales adjacentes aux parois latérales (84, 85) du canal d'aspiration, est plus grand que dans une zone centrale du canal d'aspiration (60).
  11. Appareil d'aspiration pour surfaces dures (10) selon la revendication 10, caractérisé en ce que la paroi inférieure (82) et/ou la paroi supérieure (83) sont arquées à l'intérieur du canal d'aspiration (50) au moins dans une partie longitudinale du canal d'aspiration (60) dans un plan de coupe s'étendant perpendiculairement à l'axe médian (80) de la buse d'aspiration (50).
  12. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi inférieure (82) et/ou la paroi supérieure (83) du canal d'aspiration (60) sont arquées à l'intérieur du canal d'aspiration (60) au moins dans une partie longitudinale du canal d'aspiration (60) dans un plan de coupe s'étendant parallèlement à l'axe médian (80) de la buse d'aspiration (50).
  13. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la buse d'aspiration (50) comprend deux lèvres de raclage (62, 65) flexibles qui définissent la bouche d'aspiration (70).
  14. Appareil d'aspiration pour surfaces dures (10) selon la revendication 13, caractérisé en ce qu'une des deux lèvres de raclage (62) comprend des évidements (78) sur son bord avant (73) libre faisant saillie du canal d'aspiration (60).
  15. Appareil d'aspiration pour surfaces dures (10) selon la revendication 13 ou 14, caractérisé en ce qu'au moins une des deux lèvres de raclage (62) comprend dans la zone de la bouche d'aspiration (70), tournée vers l'autre lèvre de raclage (65), une pluralité d'élévations (79).
  16. Appareil d'aspiration pour surfaces dures (10) selon la revendication 15, caractérisé en ce que les élévations (79) ne sont réparties que sur une partie de la lèvre de raclage (62).
  17. Appareil d'aspiration pour surfaces dures (10) selon la revendication 15 ou 16, caractérisé en ce que les élévations (79) sont réparties de part et d'autre d'un axe médian (80) de la buse d'aspiration (50) respectivement sur un quart de la largeur totale de la lèvre de raclage (62).
  18. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'au moins une lèvre de raclage (65) est retenue de manière interchangeable sur un logement (55) de la buse d'aspiration (50).
  19. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la buse d'aspiration (50) comprend un logement (55) présentant une première et une deuxième demi-coque (56, 57), qui logent entre elles une partie de guidage d'air (59), la première et/ou la deuxième demi-coque (56) et la partie de guidage d'air (59) définissant le canal d'aspiration (60).
  20. Appareil d'aspiration pour surfaces dures (10) selon la revendication 19, caractérisé en ce qu'une première lèvre de raclage flexible (62) est formée sur la première demi-coque (56).
  21. Appareil d'aspiration pour surfaces dures (10) selon la revendication 20, caractérisé en ce que la première demi-coque (56) et la première lèvre de raclage flexible (62) forment conjointement une pièce moulée par injection présentant deux composants.
  22. Appareil d'aspiration pour surfaces dures (10) selon l'une quelconque des revendications 19 à 21, caractérisé en ce qu'une deuxième lèvre de raclage flexible (65) est serrée entre la partie de guidage d'air (59) et la deuxième demi-coque (57).
  23. Appareil d'aspiration pour surfaces dures (10) selon la revendication 22, caractérisé en ce que la partie de guidage d'air (59) et la deuxième demi-coque (57) forment conjointement un logement (69), qui loge un bord arrière (67) de la deuxième lèvre de raclage flexible (65) tourné vers le canal d'aspiration (60).
EP13169571.0A 2008-01-11 2008-12-18 Appareil d'aspiration pour surfaces dures Active EP2638838B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008004966A DE102008004966A1 (de) 2008-01-11 2008-01-11 Saugdüse
EP12195323.6A EP2567648B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP08870307A EP2227126B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration

Related Parent Applications (5)

Application Number Title Priority Date Filing Date
EP08870307.9 Division 2008-12-18
EP12195323.6A Division EP2567648B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP12195323.6A Division-Into EP2567648B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP08870307A Division EP2227126B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP12195323.6 Division 2012-12-03

Publications (2)

Publication Number Publication Date
EP2638838A1 EP2638838A1 (fr) 2013-09-18
EP2638838B1 true EP2638838B1 (fr) 2016-03-23

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Application Number Title Priority Date Filing Date
EP08870307A Active EP2227126B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP12195323.6A Active EP2567648B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP13169575.1A Active EP2638839B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration avec raclettes
EP13169571.0A Active EP2638838B1 (fr) 2008-01-11 2008-12-18 Appareil d'aspiration pour surfaces dures

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP08870307A Active EP2227126B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP12195323.6A Active EP2567648B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
EP13169575.1A Active EP2638839B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration avec raclettes

Country Status (7)

Country Link
EP (4) EP2227126B1 (fr)
DE (2) DE102008004966A1 (fr)
DK (1) DK2227126T3 (fr)
ES (2) ES2559023T3 (fr)
PL (3) PL2227126T3 (fr)
PT (2) PT2227126E (fr)
WO (1) WO2009086893A2 (fr)

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WO2014032712A1 (fr) 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Système d'aspiration de surfaces équipé d'un dispositif d'allonge
DE102012107997A1 (de) 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Verfahren zum Betreiben eines tragbaren Hartflächenabsauggeräts und Hartflächenabsauggerät zur Durchführung des Verfahrens
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CN203042128U (zh) * 2013-02-05 2013-07-10 朱厚林 一种改进的硬质表面的吸水器
CN103099582B (zh) * 2013-02-21 2015-09-16 中山市金舜家庭用品有限公司 一种玻璃表面清洁装置
CN103251348B (zh) * 2013-06-03 2015-09-16 中山市金舜家庭用品有限公司 一种表面清洁装置
EP3021725B1 (fr) 2013-07-18 2017-06-21 Alfred Kärcher GmbH & Co. KG Porte-appareil pour un appareil de nettoyage de surfaces dures portable
CN105392402B (zh) 2013-07-18 2017-07-14 阿尔弗雷德·凯驰两合公司 便携式硬表面清洁设备
EP3021724B1 (fr) 2013-07-18 2017-04-05 Alfred Kärcher GmbH & Co. KG Appareil de nettoyage de surfaces dures portable
WO2015007327A1 (fr) 2013-07-18 2015-01-22 Alfred Kärcher Gmbh & Co. Kg Appareil de nettoyage de surfaces dures portable
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CN106687018B (zh) * 2014-08-29 2020-03-24 阿尔弗雷德·卡赫欧洲两合公司 吸嘴和硬面吸净设备
DE202016100286U1 (de) 2016-01-22 2016-02-03 Leifheit Ag Saugdüse
EP3518720B1 (fr) * 2016-09-28 2020-07-01 Alfred Kärcher SE & Co. KG Buse d'aspiration et appareil d'aspiration de surfaces dures
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Also Published As

Publication number Publication date
DE202008018112U1 (de) 2011-08-01
EP2227126A2 (fr) 2010-09-15
DK2227126T3 (da) 2013-02-18
EP2567648A1 (fr) 2013-03-13
EP2638838A1 (fr) 2013-09-18
WO2009086893A2 (fr) 2009-07-16
ES2399199T3 (es) 2013-03-26
WO2009086893A3 (fr) 2009-09-24
EP2638839A1 (fr) 2013-09-18
EP2227126B1 (fr) 2012-12-05
PT2227126E (pt) 2012-12-26
EP2638839B1 (fr) 2015-11-18
PL2638838T3 (pl) 2016-09-30
ES2559023T3 (es) 2016-02-10
PL2638839T3 (pl) 2016-04-29
PT2638839E (pt) 2016-03-21
EP2567648B1 (fr) 2015-11-18
DE102008004966A1 (de) 2009-07-23
PL2227126T3 (pl) 2013-04-30

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