EP3657999A1 - Dispositif de nettoyage - Google Patents

Dispositif de nettoyage

Info

Publication number
EP3657999A1
EP3657999A1 EP18730774.9A EP18730774A EP3657999A1 EP 3657999 A1 EP3657999 A1 EP 3657999A1 EP 18730774 A EP18730774 A EP 18730774A EP 3657999 A1 EP3657999 A1 EP 3657999A1
Authority
EP
European Patent Office
Prior art keywords
lip
wiper
cleaning device
wiper lip
hard surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18730774.9A
Other languages
German (de)
English (en)
Other versions
EP3657999B1 (fr
Inventor
Rhys JENKINS
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3657999A1 publication Critical patent/EP3657999A1/fr
Application granted granted Critical
Publication of EP3657999B1 publication Critical patent/EP3657999B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A47L7/0009—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
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/38—Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
    • 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
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • 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
    • A47L7/0014—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with additional means or devices between nozzle and 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention is based on a cleaning device, in particular a
  • Cleaning attachment for a hard surface vacuum cleaner for example, a vacuum window cleaning device, comprising at least a first and second in particular flexible wiper lip. It is suggested that a third lip between the first and second
  • Scraper lip is arranged to the first and second wiper lip too
  • the first wiper lip can also be upper, the second
  • Scraper lip be referred to as the lower lip and the third lip as the middle lip.
  • the third lip can be made of the same material as the first and second but also of a different material. In deformations of at least the second wiper lip, the third lip also deforms. A stripe-free removal of the surface to be cleaned is advantageously made possible, which increases the ease of use and increases the peel quality. In that sense, the
  • User friendliness can be increased.
  • a wide range of application of the device can be ensured. For example, despite different contact pressures or deflections of the
  • Liquid-air mixture or a streak-free use can be realized.
  • the device is for weak and strong pressing users
  • compliances of Wiper lips of 1 - 10 mm can be realized with the same cleaning result.
  • the production is simple. It is proposed that the wiper lip or the lip has a smooth surface and / or is free of elevation. A bending of the wiper lips or lip and / or flexible adaptation to a surface to be cleaned can be done easily. The smooth surfaces can easily move against each other. The manufacturing costs and the processing costs are low.
  • the wiper lips can be continuously produced, for example extruded; a discontinuous production such as in the
  • suction mouth whose opening cross-section is defined by the third lip or tongue.
  • the suction mouth is thus defined as
  • Flow rates for a fluid to be sucked, in particular liquid-air mixture, can be provided.
  • the second wiping lip has recesses starting from its wiping edge, in particular slot-shaped recesses, in particular wherein the recesses are arranged at regular intervals along the wiping edge.
  • the slot-shaped recesses extend from the scraping edge or the free end of the
  • Wiper lip towards the clamped end of the wiper lip or in the transverse direction to the wiper edge can cause fluid in the area of
  • Suction mouth and be provided from below the second wiper lip.
  • Wiper edge have a depth or extent transverse to the wiper edge of 50 - 100% of the longitudinal distance of two adjacent recess.
  • the third lip has recesses starting from its free end, in particular V-shaped or U-shaped recesses, in particular wherein the recesses are arranged at regular intervals along the lip edge.
  • the recesses run towards the clamped end of the lip. Preference is given to complete breakthroughs through the entire thickness or material thickness of the lip. As a result, a suction flow or outflow in the direction of fluid channels in the interior of the device can be guaranteed even with minimal opening cross-sections of the suction mouth. That in the area of the suction mouth between first and second
  • Wiper lip or the recesses of the second wiper lip or slits sucked fluid can be transported in the recesses.
  • the flow cross-section can be kept as constant as possible by the V-shape or constriction of the recess and thus a particularly constant flow rate is maintained.
  • the recesses of the third lip occupy 20-80%, in particular 30-50%, particularly preferably around 40% of the area or the longitudinal extent of the wiping edge.
  • the longitudinal extent of the third wiping edge typically corresponds to the longitudinal extent of the second wiping edge. Also by the aforementioned positive effects can be achieved.
  • the recesses of the second wiper lip are arranged offset to the recesses of the third lip.
  • the wiper lip or lip delimit the recesses in the contact surface, along the longitudinal direction of the lips or along the free ends. This allows the suction flow to maintain as constant as possible
  • a free end of the third lip is arranged offset from the free end or the scraping edge of the first and second wiper lip.
  • the free end of the first wiper lip projects beyond the free end of the second wiper lip and the free end of the second wiper lip projects beyond the free end of the third lip.
  • the thickness of the second wiper lip and / or the third lip decreases in the region of the free end and / or at least partially tapers towards the free end. This can be a particular
  • an angular or tapering arrangement of the at least adjacent surfaces of the first and second wiper lip or third lip in the region of the suction mouth or in the region of the free ends of the (wiper) lips to a substantially parallel or even widening arrangement in the region free ends be changed.
  • the distance of the first and second wiper lip in particular despite their angular arrangement, in a direction of extension transverse to the wiping edge (or from the free end to the clamped end) can be changed or kept constant.
  • the third lip may have several angles transversely to the lip edge. In particular, on the one hand prevail in the region of the spacing of the first and second wiper lip a first angle and in the subsequent Saugkanal Scheme another angle. This also allows the flow conditions within the
  • the first wiper lip forms an acute angle with the second wiper lip and / or the third lip, in particular an angle of 10 ° -35 °, preferably an angle of 20 ° -25 °.
  • the second wiper lip is arranged parallel to the third lip.
  • the second wiper lip and the third lip abut each other.
  • different applications can be covered.
  • the device can be used in a wide range of
  • Pressing be operated on the hard surface.
  • the angle between the first and second wiper lip and / or the first wiper lip and the third lip at least substantially corresponds to the acute angle of the free end of the second wiper lip and / or the third lip.
  • the distance of the adjacent surfaces of the first and second wiper lips or the first wiper lip and third lip can thereby be kept substantially constant at least in the region of the free ends or even open easily to the wiping edge. This forms an ideal suction mouth, which ensures a good air flow.
  • first wiper lip between a first or upper air guide element and a first housing half shell and / or the second wiper lip between a second and lower
  • Air guide element and a second housing shell in particular held interchangeable, preferably fixed non-positively and / or positively.
  • one or both wiper lips can be exchanged, for example, during wear or for use for different hard surfaces.
  • a cleaning of the device and / or wiper lips are possible by disassembly.
  • Air guide element is integrally formed. As a result, gaps can be avoided, the fluid guide is not impaired and / or a thinning of the device can be avoided.
  • a cleaning device in particular a cleaning attachment, claimed for a hard surface vacuum cleaner, comprising at least a first wiper lip and / or second wiper lip and / or third lip, which preferably spaced the first and second wiper lip, wherein at least one wiper lip and / or the lip partially made of polyethylene.
  • a wiper lip and / or lip may be coated with polyethylene and / or in volume
  • rubber is suitable, e.g.
  • the wiper lip can be coated, for example with polyethylene powder and extruded in particular
  • the wiper lips at least partially made of a rubber or elastomer, for example rubber, a synthetic rubber or the like.
  • the third lip may be formed of a thermoplastic elastomer. The third lip can be molded in an injection molding process to a, in particular the lower air guide part become.
  • the wiper lips can be made thinner with the same robustness.
  • a hard surface vacuum cleaner in particular a portable or hand-guided hard surface vacuum cleaner is claimed with a cleaning device.
  • a hard surface vacuum cleaner in particular hard surface vacuum cleaner is claimed with a cleaning device, wherein the hard surface vacuum cleaner has a handle with a free end, in particular wherein a rechargeable battery is disposed within the handle.
  • a cleaning device wherein the hard surface vacuum cleaner has a handle with a free end, in particular wherein a rechargeable battery is disposed within the handle.
  • the area of application increases. For floor frames windows, the peel-off can be extended.
  • the spectrum of different angles of attack during editing can be increased.
  • the center of gravity of the device shifts positively.
  • the cleaning attachment tilts almost automatically against the window pane to be cleaned as long as it is aligned vertically to the ground as usual.
  • a charging port for a rechargeable battery can be arranged in the handle, in particular in the region of the free end of the handle. This also increases the ease of use.
  • a hard surface vacuum cleaner is proposed, in particular hard surface vacuum cleaner with a cleaning device, characterized in that a height of the hard surface vacuum cleaner with applied cleaning attachment is less than a longitudinal extension of
  • the depth to height ratio is> 60%, in particular> 70%, particularly preferably 80%.
  • Under depth here is the maximum depth extension transverse to the height and width of the hard surface vacuum cleaner understood; speak the distance between the outer surface of the handle and the
  • Wiping edge of the first wiper lip Wiping edge of the first wiper lip.
  • a method for sucking air or air-liquid mixture is proposed with a cleaning device, in particular with a cleaning attachment of a hard surface vacuum cleaner, wherein the air or the air-liquid mixture first in, by a first and second
  • Wiping lip formed suction cup is sucked and is then guided by a gap formed by the first wiper lip and a third lip in a suction channel, wherein the third lip at least the free ends of the first and second wiper lip, in particular independently
  • FIG. 1 is a perspective view of a hard surface vacuum cleaner with a cleaning device or a cleaning attachment
  • Fig. 2 is a rear view of the hard surface vacuum cleaner with the
  • FIG. 3 is a sectional view of the hard surface vacuum cleaner with the
  • FIG. 6 shows the air guide of the cleaning device in the different applications of FIG. 5,
  • Fig. 7 shows an air duct of the cleaning device.
  • FIG. 1 schematically shows a portable hard surface vacuum cleaner 10 with which liquid can be extracted from a hard surface, for example water, from a window pane.
  • the hard surface vacuum cleaner 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 hard surface vacuum cleaner 10 can be activated via the switch 14 to generate a negative pressure on a cleaning attachment 17 or the cleaning device 16.
  • the hard surface vacuum cleaner 10 has a dirty liquid tank 18.
  • the handle 12 has a free end 20. Between the handle 12 and a base housing 21, a U-shaped handle opening 22 for gripping the handle 12 is formed.
  • an interface 24 for recharging a power supply of the hard surface vacuum cleaner 10 is provided on the handle 12.
  • the cleaning attachment 17 can be removed by actuating the fixing device 26 and can be applied again by attaching it to the hard surface vacuum cleaner 10.
  • FIG. 1 shows a first or upper wiper lip 28 of the cleaning device 16.
  • FIG. 2 shows a rear view of the hard surface vacuum cleaner 10 with the cleaning device 16 or an applied cleaning attachment 17 according to FIG. 1.
  • the cleaning attachment has a width b. Along this width b extends the first wiper lip 28.
  • a second or lower Wiper lip 30 shown.
  • the second wiper lip 30 has slot-shaped recesses 32. These are distributed over the second wiper lip 30 at regular intervals.
  • the slot-shaped recesses 32 extend from the free end 34 or the wiping edge 36 of the second wiper lip 30 toward the clamped end of the wiper lip (compare FIG. 3).
  • the second wiper lip 30 has slot-shaped recesses 32. These are distributed over the second wiper lip 30 at regular intervals.
  • the slot-shaped recesses 32 extend from the free end 34 or the wiping edge 36 of the second wiper lip 30 toward the clamped end of the wiper lip (compare FIG. 3).
  • Wiper lip has a longitudinal extension I.
  • the recesses 32 occupy about 5-20%, in the present case about 8-12% of the surface of the free end 34 and the longitudinal extent I of the wiping edge 36 a.
  • the wiping edge 36 in the present case per centimeter width or
  • FIG. 3 shows a sectional view of the hard surface vacuum cleaner 10 according to FIG. 1 or FIG. 2. The section is taken along the line AA from FIG. 2.
  • the base housing 21, which also forms the handle 12, furthermore comprises a suction unit 42 with a Suction fan 44 and a drive motor 46.
  • an energy storage device 48 in particular a lithium-ion battery, is arranged. It supplies the drive motor 46 with power.
  • the underside forms the
  • Base housing 21 a base 50, so that the hard surface vacuum cleaner 10 in an upright position, as shown in Figs. 1, 2 and 3, can be placed on a footprint.
  • the base housing 21 of the dirty liquid tank 18 is arranged.
  • Cleaning attachment 17 can be directed in the direction of arrows 19 in the dirty liquid tank 18, for the arrangement of a ventilation duct 54 through which by means of the suction unit 42, a negative pressure in the dirty liquid tank 18 relative to the ambient pressure of the hard surface vacuum cleaner 10 can be generated, an effective separation chamber 56 for separation or deposition provided by liquid and air or gas.
  • a ventilation duct 54 through which by means of the suction unit 42, a negative pressure in the dirty liquid tank 18 relative to the ambient pressure of the hard surface vacuum cleaner 10 can be generated, an effective separation chamber 56 for separation or deposition provided by liquid and air or gas.
  • About the closable opening 58 of the dirty liquid tank 18 can be emptied.
  • the suction of the air and the gas from the dirty liquid tank 18 is shown.
  • FIG. 4 shows an enlarged sectional view IV of the cleaning device 16, the cleaning attachment 17 or the hard surface vacuum cleaner 10 according to FIG. 3.
  • a hard surface 60 to be cleaned is shown by way of example.
  • the cleaning device 16 or the cleaning attachment 17 have a housing 62, which is composed of several housing parts. The first
  • Wiper lip 28 which is flexible, between a first or upper half-shell 64 and a first air guide element 66 solvable or
  • the first wiper lip 28 has for this purpose at its the free end 38 and the wiper edge 40 adjacent end of a T-like
  • Positive locking element 67 on.
  • Air guide element 66 analog form-fitting elements are formed.
  • the second wiper lip 30, which is also flexible, is preferably also held interchangeable by a second or lower half shell 68 and a clamping strip 70.
  • the terminal block 70 is connected via fastening means 72 with the second half-shell 68.
  • the clamping means 68 also connect the second
  • Half shell 68 with the first half-shell 64.
  • the second half-shell 68 forms a second air guide element 74.
  • Air guiding element 66, 74, a gas or air, or a liquid-air mixture of at least the first wiper lip 28 in the direction of a flow of the cleaning attachment 17 and in the direction of the dirty liquid tank 18 are transported.
  • the first air guide element 66 is formed as an insert.
  • the intermediate space between the first wiper lip 28 and the second wiper lip 30 defines a suction mouth 75 or a suction opening 77. Air or liquid-air mixture is sucked into the cleaning attachment 17 through this suction mouth 75 (see FIG.
  • a third or middle lip 76 is disposed between the first and second wiper lip 28, 30.
  • the third lip 76 spaces the first and second wiper lips 28, 30 at the distance a (see Fig. 7a) from each other.
  • the suction port 75 remains despite applying a vacuum on the part of Air guide elements 66, 74 and the suction channel open. Further, under a plurality of angles of attack ⁇ of the wiper lip 28 and des
  • Hard surface 60 an ideally substantially constantly open suction mouth 75 can be provided.
  • Both the first and second wiper lips 28, 30 may be at least, or abut, on opposite sides of the lip 76.
  • the third lip 76 is preferably formed on the second half-shell 68. It is preferably made with the second half shell 68 in a common injection molded part or the like of at least two components. However, it may also be otherwise connected to the cleaning attachment 17 or the second half-shell 68, e.g. cohesive, positive, non-positive, glued, or the like.
  • the third lip 76 is aligned substantially parallel to the second wiper lip 30. It lies essentially flat on this.
  • first wiper lip 28 is arranged at an acute angle ⁇ to the second wiper lip 30 and / or to the third lip 76, relative to the free ends 34, 38, 78 thereof. Further, the free end 78 and the edge 79 of the third
  • Lips 76 set back to the free end 34, 38 and the wiping edge 36, 40 of the first and second wiper lip is arranged.
  • the free end 38 of the first wiper lip 28 projects beyond the free end 34 of the second wiper lip 30 and the free end 34 of the second wiper lip 30 projects beyond the free end 78 of the third lip 76.
  • the thickness ti, t2 of the second wiper lip 30 and / or the third lip 76 in the region of the free ends 34, 78 from or runs at least partially towards the free ends 34, 78 toward pointed.
  • Wiper lip 28 and the third lip 76 may correspond to the angle of the
  • the angles ⁇ and ⁇ are on the order of the angle a.
  • Fig. 5 a, b, c shows a section of the cleaning attachment 17 with the first and second wiper lip 28, 30, and the third lip 76 in different Anstellwinkeln .DELTA. ⁇ , .DELTA.2, .DELTA.3 relative to the hard surface 60. It corresponds
  • ⁇ 50 °
  • ⁇ 2 62.5 °
  • ⁇ 3 75 ° angle of attack, as shown in FIGS. 5 a, b, c.
  • the distance of the first and second wiper lip 28, 30 increases.
  • the deflection of the first and / or second wiper lip 28, 30 and / or the third lip 76 can be varied by varying the contact pressure of the cleaning attachment 17 on the hard surface , The following are the permissible deflections or permissible
  • the third lip 76 has recesses 80 from its free end 78. These are at least partially V-shaped, but may also have a different geometry.
  • the recesses 80 run from the free end 78 to the clamped end or narrow or lace.
  • the recesses 80 are arranged at regular intervals bi along the lip edge 82.
  • the recesses 80 of the third lip 76 take about 30-50
  • the lip edge 82 is interrupted, with the longitudinal extension of the interruptions parallel to the lip edge 82 decreasing with increasing distance from the lip edge 82 in the direction of the molded 83 and fixed end of the third lip 76, respectively. Furthermore, the recesses 32 of the second wiper lip 30 are offset from the
  • Recesses 80 of the third lip 76 arranged.
  • the third lip 76 overlies the slots 32 of the second wiper lip 30. Since the third lip 76 and second wiper lip 30 abut each other, they define the recesses 32, 80 mutually in the area of the contact surfaces 84 (perpendicular to the contact surface 84). So also the recesses 80 of the third lip 76 are limited by the second wiper lip 30. Furthermore, the upper or first wiper lip 28 are visible from the T-shaped clamping end or positive-locking element 67 to the free end 38 or the wiping edge 40. In addition, the second wiper lip 30.
  • FIGS. 6 a, b and 7 a, b, c illustrate the operation of the
  • Cleaning attachment 17 at different deflections of at least the first or second wiper lip 28, 30 and / or the third lip 76 when applied to a hard surface 60 or different approaches of the
  • Cleaning attachment 17 to a hard surface 60 In this case, in addition to many other incidents example three cases can be distinguished. Namely: a low, a medium and a high deflection of the wiper lip (s) 28, 30 and the third lip 76. If there is a large deflection, a suction air flow, from the back, or the hard surface 60 side facing the second wiper lip 30, sucked over the free end 78 of the third lip 76 into the interior 85 of the cleaning attachment 17.
  • Air mixture can collect in the recesses 32 of the second wiper lip 30 and in the region of the suction mouth 75. It can be sucked off via the free end 78 of the third lip 76, which defines the cross section of the suction mouth 75 in this region (and where the thickness of the third lip 76 is small). The flow velocity at the suction mouth 75 and in the
  • FIG. 6 b illustrates a mean deflection of at least the first or second wiper lip 28, 30 and / or the third lip 76 when applied to a hard surface 60 or an average approximation of the cleaning attachment 17 to a hard surface 60.
  • the third or middle lip 76 covers at least partially the slots 32 of the second wiper lip 30 from. This will be the
  • the suction air flow can also from the back, or the hard surface 60 facing side of the second wiper lip 30, over the free end 78 of the third lip 76 and sometimes on the V-shaped recesses 80 in the interior 85 of
  • the liquid-air mixture can collect in the recesses 32 of the second wiper lip 30 and in the region of the suction mouth 75. It is also about the free end 78 of the third lip 76 and the V-shaped recesses 80 as constant as possible
  • Fig. 7 a, b, c illustrates the air flow in the region of the suction mouth 75, in particular in the critical case of detachment of the cleaning attachment 17 from the hard surface 60, in particular if this is only slightly bent or approximated to the hard surface 60, or if the cleaning attachment 17 is kept free in the air.
  • Fig. 7a shows a section IV of the cleaning attachment according to FIG. 3 or 4, but in a side view (not cut).
  • Fig. 7b illustrates the direction of the view of FIG. 7c on a section of the suction mouth 75 and on the free ends 34, 38, 78 of the wiper lips 28, 30 and lip 76.
  • the liquid-air mixture is sucked off. It is through the slots 32 through the free end 78 of the third lip 76 and in the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

L'invention part d'un dispositif de nettoyage (16), en particulier d'un adaptateur de nettoyage (17) pour un dispositif de nettoyage sous vide (10) de surfaces dures présentant au moins une première et une deuxième lèvre de raclage (28, 30). Selon l'invention, une troisième lèvre (76) est disposée entre la première et la deuxième lèvre de raclage (28, 30) pour écarter la première et la deuxième lèvre de raclage (28, 30).
EP18730774.9A 2017-07-27 2018-06-12 Dispositif de nettoyage Active EP3657999B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017007186.1A DE102017007186A1 (de) 2017-07-27 2017-07-27 Reinigungsvorrichtung
PCT/EP2018/065481 WO2019020264A1 (fr) 2017-07-27 2018-06-12 Dispositif de nettoyage

Publications (2)

Publication Number Publication Date
EP3657999A1 true EP3657999A1 (fr) 2020-06-03
EP3657999B1 EP3657999B1 (fr) 2024-08-07

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EP18730774.9A Active EP3657999B1 (fr) 2017-07-27 2018-06-12 Dispositif de nettoyage

Country Status (5)

Country Link
US (1) US11490771B2 (fr)
EP (1) EP3657999B1 (fr)
CN (3) CN113693484A (fr)
DE (1) DE102017007186A1 (fr)
WO (1) WO2019020264A1 (fr)

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Publication number Publication date
CN113693484A (zh) 2021-11-26
CN110996735A (zh) 2020-04-10
CN110996735B (zh) 2021-08-20
US20200138253A1 (en) 2020-05-07
CN113693485A (zh) 2021-11-26
WO2019020264A1 (fr) 2019-01-31
EP3657999B1 (fr) 2024-08-07
DE102017007186A1 (de) 2019-01-31
CN113693485B (zh) 2024-04-09
US11490771B2 (en) 2022-11-08

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