WO2009086893A2 - Buse d'aspiration - Google Patents

Buse d'aspiration Download PDF

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Publication number
WO2009086893A2
WO2009086893A2 PCT/EP2008/010805 EP2008010805W WO2009086893A2 WO 2009086893 A2 WO2009086893 A2 WO 2009086893A2 EP 2008010805 W EP2008010805 W EP 2008010805W WO 2009086893 A2 WO2009086893 A2 WO 2009086893A2
Authority
WO
WIPO (PCT)
Prior art keywords
suction
suction nozzle
channel
hartflächenabsauggerät
mouth
Prior art date
Application number
PCT/EP2008/010805
Other languages
German (de)
English (en)
Other versions
WO2009086893A3 (fr
Inventor
Michael Scharmacher
Martin Schmidgall
Michael Schütz
Günter RAUSCHER
Sandra Bartel
Original Assignee
Alfred Kärcher Gmbh & 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 Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to EP08870307A priority Critical patent/EP2227126B1/fr
Priority to PL08870307T priority patent/PL2227126T3/pl
Priority to ES08870307T priority patent/ES2399199T3/es
Priority to DK08870307.9T priority patent/DK2227126T3/da
Publication of WO2009086893A2 publication Critical patent/WO2009086893A2/fr
Publication of WO2009086893A3 publication Critical patent/WO2009086893A3/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 suction nozzle, in particular for a Hart vomabsaug- device, with a suction mouth, which is followed by a suction channel, at its end remote from the suction mouth a vacuum source is connected to form a suction flow, wherein the suction channel has a bottom wall and a ceiling wall, the connected by side walls.
  • a vacuum source is connected to form a suction flow, wherein the suction channel has a bottom wall and a ceiling wall, the connected by side walls.
  • at least one flexible wiper lip is arranged at the suction mouth.
  • the invention relates to a Hart vomabsaug réelle with such a suction nozzle.
  • 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 vomabsaugered 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 Hartvidabsaugilless.
  • Such hard surface suction devices with a suction nozzle are known, for example, from US Pat. Nos. 3,254,360 and 3,118,165.
  • Object of the present invention is to develop a suction nozzle of the type mentioned in such a way that forms an effective suction flow in the suction mouth when connecting the suction nozzle to a vacuum source at the lowest possible energy consumption of the vacuum source.
  • 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 regions of the suction flow with a very low flow velocity (so-called "dead spots") and can result in separation of dirt particles or water droplets within the suction channel, so that the particles and droplets sucked in the area of the suction mouth are only insufficiently penetrated through the entire suction channel be transported.
  • 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 separation of entrained particles and liquid droplets.
  • the side walls are curved in an arc shape virtually over their entire length.
  • the side walls starting from their suction mouth adjacent the front end to their suction mouth facing away from the rear end arcuately curved, they have at most at its front and / or rear end a rectilinear wall section. It has been shown that this flow losses can be greatly reduced.
  • the side walls in their front end region facing the suction mouth, are perpendicular to a center axis of the suction orifice. nozzle and are aligned in their suction end remote from the rear end region parallel to the central axis of the suction nozzle.
  • the side walls In its front end region, 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 can be curved in a circular arc with a constant 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 of the risk of vortex formation is achieved in a preferred embodiment of the invention that at least in a longitudinal section of the suction channel of the distance of the top wall of the bottom wall in the adjacent to the side walls lateral edge areas of the suction channel is greater 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 to Result that the flow velocity of the suction flow is lower in the edge regions 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 is arcuately curved into the interior of the suction channel at least in a longitudinal section of the suction channel in a sectional plane running transversely to the center axis of the suction nozzle.
  • the side walls at least partially an arcuate course
  • the bottom wall and / or the ceiling wall is arcuately curved in a direction 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 vacuum source, 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 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.
  • At least one of the two wiper lips in the area of the suction mouth, facing the other wiper lip has a multiplicity of elevations.
  • the elevations represent spacers, which ensure that the wiper lips, even if they lie directly against each other, see between 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 between them Include air guide part, 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 in addition an air guide part 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 be adapted to the remaining shape of the Hart vomabsaugauss, 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 during assembly of the suction nozzle between the two half-shells, and then the two half-shells, preferably releasably bar, are interconnected.
  • 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 or second half shell of the housing.
  • the first or second half-shell and the first flexible wiper lip form a one-piece injection-molded part with two components.
  • the first or second 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 or second 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 first or second half-shell.
  • the air guide part and the first or 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.
  • the invention relates not only to a suction nozzle but also a Hartvidabsaug réelle, in particular a portable Hartvid- suction device, such as a device for extracting windows, in which a liquid film can be sucked from the window.
  • a Hartvidaug réelle on a suction unit, a dirty liquid tank and a separator for separating liquid from a sucked liquid-air mixture.
  • the hard surface suction device according to the invention comprises a suction nozzle of the An effective suction flow can be achieved by means of the suction nozzle with low energy consumption of the suction unit in the region of the suction mouth, so that liquid droplets can be effectively sucked off a hard surface.
  • An advantageous embodiment of the Hart vomabsaug réelles is characterized by a rechargeable power source, in particular a lithium-ion accumulator. 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 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 vomit- suction device upstream of the suction unit has a separation chamber, which receives the separator and the over a drain opening is connected to the dirty liquid tank.
  • the suction flow is outside of the dirty liquid tank and is therefore not affected by the level of accumulated liquid 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 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 hard surface extraction unit a particularly compact design.
  • the rear end region of the suction channel facing away from the suction mouth and / or the front end region facing the suction mouth of a suction line connecting the suction unit with the separation chamber within the separation chamber in the circumferential direction are at least partially offset by at least one intermediate storage region surrounded separated liquid.
  • At least one temporary storage area gives the user the opportunity to operate the Hartvidabsaug réelle not only in an upright position but also in a tilted to the vertical position, in particular the Hart vomabsaug 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, first 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. If the hard surface suction device is operated again in an upright position at a later time, the liquid can flow out of the at least one intermediate storage area via the discharge opening into the dirty liquid tank.
  • Hartvidabsaug réelles is thus 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 liquid applied to the windowpane is manually removed from the windowpane by means of a puller having a rubber lip.
  • 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 deposition 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.
  • Figure 1 a perspective view of a Hart vomabsaugilless
  • FIG. 2 a sectional view of the hard surface suction device from FIG. 1;
  • FIG. 3 shows a sectional view of a suction nozzle of the hard surface suction device
  • Figure 4 is a plan view of a first half-shell of a housing of the suction nozzle of Figure 3;
  • Figure 5 is a plan view of the first half-shell of the housing shown in Figure 4, on which an air guide member is placed;
  • Figure 6 is a sectional view taken along line 6-6 in Figure 5;
  • Figure 7 is a sectional view taken along the line 7-7 in Figure 5 and
  • FIG. 8 a sectional view along the line 8-8 in FIG. 5.
  • a portable Hartvidaug réelle 10 is shown schematically, can be sucked with the liquid from a hard surface, such as water from a window pane.
  • the Hartvidabsaug réelle 10 can be held by the user with one hand on a handle 12 and guided in the manner of a conventional, having a rubber lip puller on the hard surface along.
  • the Hartvidabsaug 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.
  • the base housing 14 forms a base 21, so that the Hartvidabsaug réelle 10 in an upright position, as shown in the figures 1 and 2, can be placed on a floor space.
  • a dirty fluid tank 23 Disposed 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 oriented parallel to the discharge channel 26.
  • the ventilation channel 27 protrudes from the top side via the drainage channel 26.
  • the dirty liquid tank 23 has on its side facing away from the handle 12 a drain opening 29 which can be sealed tightly by means of a cover 28.
  • a deposition chamber 33 adjoins the base housing 14 and the dirty liquid tank 23, which chamber is releasably connected to the base housing 12 via a releasable latching connection.
  • the deposition chamber 33 has outer walls in the form of a concavely curved front wall 36 adjoining the dirty liquid tank 23, a convexly curved rear wall 37 adjoining the handle 12 and in the form of the front wall 36 in one piece with the rear wall. wall 37 connecting side walls, of which in the drawing, namely in Figure 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, at the front edge 63 facing away from the suction channel 60 a second wiper lip 65 having a suction channel 60. facing edge 66 is applied. 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 in this case forms, 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.
  • the suction nozzle expands transversely to the longitudinal extent of the handle 12 so that the wiper lips 62 and 65 extend over a multiple of the width of the base housing 14 and thus a hard surface to be sucked off, in particular a window pane. can capture large areas.
  • FIG. 4 which shows a plan view of the first half-shell 56 with the first wiper lip 62 molded onto it
  • the front edge 63 of the first wiper lip 62 is provided with recesses by a plurality of approximately semicircular in the front edge 63 at a uniform distance Recesses 78 are formed.
  • the second wiper lip 65 faces, arranged approximately triangular elevations 79.
  • 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.
  • the elevations 79 are arranged on both sides of a center axis 80 of the suction nozzle 50, wherein they are distributed on both sides over a quarter of the total width of the first stripper lip 62, starting from the central axis 80.
  • 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 has a bottom wall 82, which is formed by a central region of the first sheath 56 and by 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 part 59 and are integrally connected to the top 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 Figure 4 clearly.
  • 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 mouth 70 remote from the rear end portion 101 and 102, the side walls 84 and 85 parallel to the central axis 80 out - directed.
  • the side walls 84, 85 approach in the direction away from the suction mouth 70 continuously, with their radius of curvature continuously changes 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 minimum value in a central region in the longitudinal direction of the suction channel 60.
  • the side walls 84 and 85 practically form a rear wall of the suction channel 60, which faces the suction mouth 70, and with their rear end regions 101 and 102 the side walls 84 and 85 extend parallel to the longitudinal direction of the suction channel 60 and thus parallel to the suction flow 60 forming in the suction channel.
  • the suction channel 60 is shown in sectional planes oriented perpendicular to the central axis 80. It is clear from this that the ceiling wall 83 is curved arcuately into the interior of the suction channel 60 transversely to the center axis 80. 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 Flow cross section of the suction channel 60 in the direction of the side walls 84 and 85.
  • FIG. 6 shows the suction channel 60 in a sectional plane running parallel to the central axis 80. Based on this sectional plane, the bottom wall 82 is curved in an arc shape into the interior of the suction channel 60, and also the top wall 83 has a similar arcuate course. Relative to a sectional plane running parallel to the central axis 80, the suction channel widens starting from a central region 104 in relation to its longitudinal extent. This has additionally shown the formation of vortices and thus areas with a very low flow velocity within the suction channel 60 can be counteracted. During operation of the Hartvidaugilless 10, 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 Mungs Schemendungs Scheme 107 of the suction line 105 is in the form of a pipe socket 108 and protrudes on the rear end portion 72 of the suction channel 60 facing away from the baffle 40 into the deposition chamber 33 inside.
  • 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 aspirated suction air can escape from the base housing 14 via exhaust openings 111 formed laterally into 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 enters the deposition chamber 33 via the suction mouth 70 and the suction channel 60 and initially strikes the baffle plate 76 arranged at a distance from the mouth opening 73 of the suction channel 60, at which 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 deposited within the deposition chamber 33 Liquid can flow via the drainage channel 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.
  • 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.
  • a first intermediate storage area 117 is disposed between the front wall 36 of the deposition chamber 33 and the receiving well 43, and a second intermediate storage area 118 is positioned between the rear wall 37 of the deposition chamber 33 and the receiving well 43. Expand both buffer areas 117, 118 continuously in the direction of the baffle 40.
  • the two intermediate storage areas 117, 118 extend in the circumferential direction in each case over a part of the rear end region 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, especially 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 lying, without the danger exists that separated liquid can reach the suction mouth 70 via the suction channel 60. If the Hartvidabsaug 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 dirty liquid tank 23 can be aerated in any position of the hard surface suction device 10 via the ventilation channel 27 running parallel to the outlet channel 26 so that air can escape at any time from the dirty liquid tank 23, which can then be sucked out of the separation chamber 33 via the suction line 105.
  • the Hart vomabsaug réelle 10 can thus be operated in any position relative to the vertical, wherein in the deposition chamber 33 deposited liquid can either go directly into the dirty liquid tank 23 or it is first stored in intermediate storage areas 117, 118 and 119 of the deposition chamber 33, to 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 beyond there is virtually no risk that within the suction channel 60 detected by the suction flow dirt particles or liquid droplets deposit.

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)

Abstract

L'invention concerne une buse d'aspiration notamment destinée à un dispositif d'aspiration de surfaces dures, comportant un orifice d'aspiration, etun canal d'aspiration se joignant à l'orifice d'aspiration. Une source de dépression peut être connectée à l'extrémité du canal d'aspiration opposée à l'orifice d'aspiration pour former un flux d'aspiration. Le canal d'aspiration présente une paroi inférieure et une paroi supérieure connectées mutuellement par des parois latérales. Pour améliorer la buse d'aspiration de telle manière qu'un flux d'aspiration efficace est créé dans la zone de l'orifice d'aspiration lors de la connexion à une source de dépression, avec une consommation d'énergie réduite de la source de dépression, les parois latérales sont courbées à la manière d'un arc. L'invention concerne également un dispositif d'aspiration de surfaces dures comportant une telle buse d'aspiration.
PCT/EP2008/010805 2008-01-11 2008-12-18 Buse d'aspiration WO2009086893A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08870307A EP2227126B1 (fr) 2008-01-11 2008-12-18 Buse d'aspiration
PL08870307T PL2227126T3 (pl) 2008-01-11 2008-12-18 Dysza ssąca
ES08870307T ES2399199T3 (es) 2008-01-11 2008-12-18 Tobera de aspiración
DK08870307.9T DK2227126T3 (da) 2008-01-11 2008-12-18 Sugedyse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008004966.2 2008-01-11
DE102008004966A DE102008004966A1 (de) 2008-01-11 2008-01-11 Saugdüse

Publications (2)

Publication Number Publication Date
WO2009086893A2 true WO2009086893A2 (fr) 2009-07-16
WO2009086893A3 WO2009086893A3 (fr) 2009-09-24

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ID=40445724

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/010805 WO2009086893A2 (fr) 2008-01-11 2008-12-18 Buse d'aspiration

Country Status (7)

Country Link
EP (4) EP2567648B1 (fr)
DE (2) DE202008018112U1 (fr)
DK (1) DK2227126T3 (fr)
ES (2) ES2399199T3 (fr)
PL (3) PL2638839T3 (fr)
PT (2) PT2638839E (fr)
WO (1) WO2009086893A2 (fr)

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DE202012101781U1 (de) 2012-03-30 2012-06-26 Alfred Kärcher Gmbh & Co. Kg Hartflächenabsauggerät
EP2529654A3 (fr) * 2010-10-25 2013-10-16 Samsung Electronics Co., Ltd. Dispositif de nettoyage autonome
WO2014032712A1 (fr) 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Système d'aspiration de surfaces équipé d'un dispositif d'allonge
WO2014032947A1 (fr) * 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Procédé pour faire fonctionner un appareil d'aspiration de surfaces dures portable et appareil d'aspiration de surfaces dures pour mettre en œuvre ce procédé
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
WO2014121529A1 (fr) * 2013-02-05 2014-08-14 Zhu Houlin Absorbeur d'eau de surfaces dures amélioré
WO2015086115A1 (fr) * 2013-12-09 2015-06-18 Carl Freudenberg Kg Buse d'aspiration possédant au moins deux parois intermédiaires
WO2015161876A1 (fr) * 2014-04-23 2015-10-29 Alfred Kärcher Gmbh & Co. Kg Buse d'aspiration et appareil de nettoyage de surfaces dures
CN105377099A (zh) * 2013-07-18 2016-03-02 阿尔弗雷德·凯驰两合公司 能携带的硬面清洁设备
WO2016029967A1 (fr) * 2014-08-29 2016-03-03 Alfred Kärcher Gmbh & Co. Kg Buse d'aspiration et appareil d'aspiration de surfaces dures
WO2016029966A1 (fr) * 2014-08-29 2016-03-03 Alfred Kärcher Gmbh & Co. Kg Buse d'aspiration et appareil d'aspiration de surfaces dures
CN105392404A (zh) * 2013-07-18 2016-03-09 阿尔弗雷德·凯驰两合公司 便携式硬表面清洁设备
DE202014011048U1 (de) 2014-04-23 2017-07-14 Alfred Kärcher Gmbh & Co. Kg Saugdüse und Hartflächenreinigungsgerät

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US8732897B2 (en) 2010-10-25 2014-05-27 Samsung Electronics Co., Ltd. Autonomous cleaning device
EP2529654A3 (fr) * 2010-10-25 2013-10-16 Samsung Electronics Co., Ltd. Dispositif de nettoyage autonome
US9220385B2 (en) 2010-10-25 2015-12-29 Samsung Electronics Co., Ltd. Autonomous cleaning device
WO2013143616A1 (fr) 2012-03-30 2013-10-03 Alfred Kärcher Gmbh & Co. Kg Appareil d'aspiration pour surfaces dures
EP3081130A1 (fr) 2012-03-30 2016-10-19 Alfred Kärcher GmbH & Co. KG Appareil d'aspiration pour surfaces dures
DE202012101781U1 (de) 2012-03-30 2012-06-26 Alfred Kärcher Gmbh & Co. Kg Hartflächenabsauggerät
WO2014032947A1 (fr) * 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Procédé pour faire fonctionner un appareil d'aspiration de surfaces dures portable et appareil d'aspiration de surfaces dures pour mettre en œuvre ce procédé
WO2014032945A1 (fr) 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Procédé pour faire fonctionner un appareil d'aspiration de surfaces dures portable et appareil d'aspiration de surfaces dures pour mettre en œuvre ce procédé
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
CN104602584A (zh) * 2012-08-29 2015-05-06 阿尔弗雷德·凯驰两合公司 用于运行可携带的硬表面抽吸设备的方法和用于执行该方法的硬表面抽吸设备
EP3130268A1 (fr) 2012-08-29 2017-02-15 Alfred Kärcher GmbH & Co. KG Procédé de fonctionnement d'un appareil d'aspiration pour surfaces dures et appareil d'aspiration pour surfaces dures destiné à exécuter le procédé
DE102012107994A1 (de) 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Verfahren zum Betreiben eines tragbaren Hartflächenabsauggeräts und Hartflächenabsauggerät zur Durchführung des Verfahrens
EP3127461A1 (fr) 2012-08-29 2017-02-08 Alfred Kärcher GmbH & Co. KG Procede de fonctionnement d'un appareil d'aspiration pour surfaces dures et appareil d'aspiration pour surfaces dures destine a executer le procede
WO2014032712A1 (fr) 2012-08-29 2014-03-06 Alfred Kärcher Gmbh & Co. Kg Système d'aspiration de surfaces équipé d'un dispositif d'allonge
WO2014121529A1 (fr) * 2013-02-05 2014-08-14 Zhu Houlin Absorbeur d'eau de surfaces dures amélioré
CN105392404B (zh) * 2013-07-18 2017-08-08 阿尔弗雷德·凯驰两合公司 便携式硬表面清洁设备
CN105377099A (zh) * 2013-07-18 2016-03-02 阿尔弗雷德·凯驰两合公司 能携带的硬面清洁设备
CN105392404A (zh) * 2013-07-18 2016-03-09 阿尔弗雷德·凯驰两合公司 便携式硬表面清洁设备
CN105979836A (zh) * 2013-12-09 2016-09-28 卡尔·弗罗伊登伯格公司 具有至少两个中间壁的抽吸嘴
WO2015086115A1 (fr) * 2013-12-09 2015-06-18 Carl Freudenberg Kg Buse d'aspiration possédant au moins deux parois intermédiaires
US10285550B2 (en) 2013-12-09 2019-05-14 Carl Freudenberg Kg Suction nozzle with at least two intermediate walls
WO2015161876A1 (fr) * 2014-04-23 2015-10-29 Alfred Kärcher Gmbh & Co. Kg Buse d'aspiration et appareil de nettoyage de surfaces dures
DE202014011048U1 (de) 2014-04-23 2017-07-14 Alfred Kärcher Gmbh & Co. Kg Saugdüse und Hartflächenreinigungsgerät
WO2016029966A1 (fr) * 2014-08-29 2016-03-03 Alfred Kärcher Gmbh & Co. Kg Buse d'aspiration et appareil d'aspiration de surfaces dures
WO2016029967A1 (fr) * 2014-08-29 2016-03-03 Alfred Kärcher Gmbh & Co. Kg Buse d'aspiration et appareil d'aspiration de surfaces dures

Also Published As

Publication number Publication date
EP2567648B1 (fr) 2015-11-18
ES2559023T3 (es) 2016-02-10
WO2009086893A3 (fr) 2009-09-24
EP2638838B1 (fr) 2016-03-23
EP2638839A1 (fr) 2013-09-18
PL2227126T3 (pl) 2013-04-30
DK2227126T3 (da) 2013-02-18
EP2567648A1 (fr) 2013-03-13
PT2638839E (pt) 2016-03-21
PL2638838T3 (pl) 2016-09-30
DE202008018112U1 (de) 2011-08-01
PL2638839T3 (pl) 2016-04-29
DE102008004966A1 (de) 2009-07-23
EP2638839B1 (fr) 2015-11-18
EP2227126A2 (fr) 2010-09-15
ES2399199T3 (es) 2013-03-26
EP2638838A1 (fr) 2013-09-18
PT2227126E (pt) 2012-12-26
EP2227126B1 (fr) 2012-12-05

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