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EP3393322B1 - Portable hard surface cleaning device - Google Patents

Portable hard surface cleaning device Download PDF

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Publication number
EP3393322B1
EP3393322B1 EP15816186.9A EP15816186A EP3393322B1 EP 3393322 B1 EP3393322 B1 EP 3393322B1 EP 15816186 A EP15816186 A EP 15816186A EP 3393322 B1 EP3393322 B1 EP 3393322B1
Authority
EP
European Patent Office
Prior art keywords
tank
hard surface
cleaning device
surface cleaning
portable hard
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
EP15816186.9A
Other languages
German (de)
French (fr)
Other versions
EP3393322A1 (en
Inventor
Christian Stewen
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
Priority to PL15816186T priority Critical patent/PL3393322T3/en
Publication of EP3393322A1 publication Critical patent/EP3393322A1/en
Application granted granted Critical
Publication of EP3393322B1 publication Critical patent/EP3393322B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • 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
    • 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
    • A47L9/32—Handles
    • A47L9/322—Handles for hand-supported suction cleaners

Definitions

  • the invention relates to a portable hard surface cleaning device for drawing off and sucking off a liquid from a hard surface, in particular a window pane, with a handle and a suction turbine arranged in a housing in relation to an upright position of the hard surface cleaning device above the handle, and with a flow connection with the suction turbine Suction nozzle for sucking up a liquid-air mixture from the hard surface, and with a dirty liquid tank that can be detachably connected to the housing, whereby liquid can be separated from the sucked-up liquid-air mixture and deposited in the dirty liquid tank, and wherein the dirty liquid tank has a first tank area with a tank opening that is in a first tank receptacle compartment of the housing, which is arranged laterally next to the suction turbine, can be inserted.
  • Such a portable hard surface cleaning device is from the WO 2013/143616 A1 known. With its help, a hard surface, in particular a window pane, can be cleaned.
  • the portable hard surface cleaning device has a suction nozzle on which at least one pulling lip is arranged, which can be moved along the hard surface, so that liquid can be drawn off from the hard surface.
  • the liquid collects at a suction opening of the suction nozzle.
  • a suction flow can be achieved, under the effect of which a mixture of liquid and air is sucked into a suction channel of the suction nozzle via the suction opening.
  • a separator is arranged in the flow path between the suction nozzle and the suction turbine, with the aid of which liquid from the sucked up Liquid-air mixture can be separated.
  • the liquid can be collected in a dirty liquid tank, which is held detachably on the housing, and the sucked-in air can be released into the environment as exhaust air by the suction turbine.
  • the dirty liquid tank from the WO 2013/143616 A1 can be used with a first tank area, which has a tank opening, in a side of the suction turbine and offset to the handle arranged first tank receiving compartment of the housing.
  • the suction turbine is arranged above the handle in relation to an upright position of the hard surface cleaning device. This has the advantage that the user can guide the portable hard surface cleaning device with little effort along the hard surface to be cleaned, since the center of gravity of the hard surface cleaning device is arranged above the handle.
  • the exhaust air is from the WO 2013/143616 A1 known portable hard surface cleaning device in the vertical direction through the entire handle and released to the environment via an opening arranged at the free end of the handle.
  • the exhaust air is subject to a not inconsiderable flow resistance, which increases the energy consumption of the hard surface cleaning device.
  • the object of the present invention is to develop a portable hard surface cleaning device of the type mentioned at the outset in such a way that it has a lower energy consumption.
  • suction turbine is in flow connection with the first tank receiving compartment via at least one exhaust air opening and exhaust air can be discharged to the environment via the at least one exhaust air opening and the first tank receiving compartment.
  • the first tank receiving compartment into which a first tank area of the dirty liquid tank can be inserted, also serves as an exhaust air space through which the air sucked in by the suction turbine can be released to the environment.
  • the first tank receiving compartment is in flow connection with the suction turbine via at least one exhaust air opening, so that the exhaust air from the suction turbine can flow through the at least one exhaust air opening into the first tank receiving compartment and can be released from the tank receiving compartment to the surroundings.
  • the exhaust air can flow around the first tank area of the dirty liquid tank within the tank receiving compartment. It has been shown that this can keep the noise level in the exhaust air low.
  • the exhaust air experiences rather little flow losses on its way from the suction turbine to the environment.
  • the portable hard surface cleaning device according to the invention therefore has a lower energy consumption, and a rechargeable battery of the hard surface cleaning device is distinguished by a longer service life.
  • Liquid can be separated from the sucked-up liquid-air mixture.
  • the separation can take place in the suction nozzle, in the housing, in the suction turbine and / or in the dirty liquid tank.
  • a separating device for separating liquid from the sucked-up liquid-air mixture is preferably arranged in the suction nozzle, in the housing, in the area of the suction turbine and / or in the dirty liquid tank.
  • the separating device is arranged in the flow path between a suction opening of the suction nozzle and the at least one exhaust air opening.
  • the separating device is arranged in the flow path between the suction nozzle and the suction turbine.
  • the separating device is advantageously structurally separated from the dirty liquid tank and / or from the suction nozzle.
  • the suction nozzle is advantageously connectable to the housing.
  • the separating device is arranged in a separating chamber.
  • the separation chamber is preferably detachably or non-detachably connected to the housing.
  • the suction nozzle is preferably releasably or non-releasably connected to the separation chamber.
  • the handle can be designed as a separate component which is detachably or non-detachably connected to the housing.
  • the handle is integrally connected to the housing, so that the housing and the handle form a common component, which is preferably made of plastic.
  • the dirty liquid tank can be gripped by the user by hand when the first tank area is inserted into the first tank receiving compartment. This makes it easier for the user to grip the dirty liquid tank and remove it from the first tank storage compartment.
  • a gripping opening is arranged between the handle and the dirty liquid tank, which can be reached by the user when gripping the handle.
  • the user can grasp the handle and reach through the gripping opening with his fingers. The user can also reach through the gripping opening when gripping the dirty liquid tank.
  • the exhaust air can be discharged to the environment on the side of the first tank receiving compartment facing away from the handle. This prevents the user from being affected by the exhaust air.
  • the first tank area within the first tank receiving compartment is preferably surrounded by an annular space, into which the at least one exhaust air opening opens and from which the exhaust air can be discharged to the surroundings via at least one air outlet opening.
  • the annular space within the first tank receiving compartment extends in the circumferential direction around the first tank area.
  • the exhaust air from the suction turbine can reach the annular space via the at least one exhaust air opening.
  • the exhaust air opening can then flow around the first tank area at least partially in the circumferential direction, in order then to be released to the surroundings, preferably on the side facing away from the handle.
  • the at least one air outlet opening is arranged between an end wall of the housing and a tank wall of the dirty liquid tank.
  • a free space thus extends between the tank wall and the end wall of the housing, which space forms the at least one air outlet opening and enables the exhaust air to flow out of the annular space.
  • the dirty liquid tank has a recess on its front side facing away from the handle, which depression adjoins the at least one air outlet opening.
  • the exhaust air flowing out of the annular space of the first tank receiving compartment can flow outside the dirty liquid tank along its depression. This results in a further reduction in flow losses of the exhaust air, since this does not undergo any strong changes in direction when flowing out of the annular space.
  • the exhaust air flowing into the annular space via the at least one exhaust air opening preferably has a tangential directional component in relation to the central axis of the annulus.
  • the exhaust air is thus fed to the annular space in a flow direction, which allows the exhaust air with low flow losses to at least partially flow through the annular space.
  • the flow direction of the exhaust air flowing out of the annular space via the at least one air outlet opening preferably has an axial directional component with respect to the central axis of the annular space.
  • the exhaust air flowing out of the annular space advantageously flows at least partially along the outside of the dirty liquid tank facing away from the handle.
  • the suction turbine is separated from the first tank receiving area by a partition which has the at least one exhaust air opening.
  • the dividing wall separates a turbine space accommodating the suction turbine from the first tank accommodating compartment, and the at least one exhaust air opening enables the exhaust air to pass from the turbine compartment into the first tank accommodating compartment.
  • the housing of the portable hard surface cleaning device has two housing half-shells, with only one of the two housing half-shells forming the at least one exhaust air opening, via which the turbine chamber receiving the suction turbine is in flow connection with the first tank receiving compartment.
  • the at least one exhaust air opening is arranged offset to a central plane of the hard surface cleaning device, the central plane being defined by the parting line between the two housing half-shells.
  • the first tank area has a filler neck.
  • the free end of the filler neck defines the tank opening through which the dirty liquid tank with liquid can be filled, which was separated by the separating device from the sucked-up liquid-air mixture.
  • the separating device is advantageously arranged in a separating chamber formed by the housing, from which the dirty liquid tank is structurally separated.
  • the separating chamber is located upstream of the suction turbine.
  • the separation chamber is preferably connected to the suction turbine via an air outlet opening and to the dirty liquid tank via a liquid outlet opening.
  • liquid outlet opening is arranged on an outlet funnel that opens into the first tank-receiving compartment.
  • a filling device can be positioned at the end of the outlet funnel facing away from the separation chamber, via which the liquid can be fed to the dirty liquid tank.
  • the filling device has a filler pipe which dips into the dirty liquid tank, and a vent pipe which is arranged parallel to the filler pipe. Air in the tank can flow out of the tank via the ventilation pipe when filling the dirty liquid tank.
  • the dirty liquid tank has a second tank area which is arranged at a distance from the first tank area and which can be positioned on an end area of the handle facing away from the suction turbine. With its second tank area, the dirty liquid container can thus be supported on the handle.
  • the housing of the portable hard surface cleaning device is in an advantageous embodiment of the invention, on the end region of the handle facing away from the suction turbine, it is designed as a second tank receiving compartment into which the second tank region of the dirty liquid tank can be inserted.
  • the dirty liquid tank can thus be held particularly reliably on the housing. With its first tank area, the dirty liquid tank can be inserted into the first tank receiving compartment arranged directly adjacent to the suction turbine, and with its second tank area the dirty liquid tank can be inserted into the second tank receiving compartment, which is arranged at the end of the handle facing away from the suction turbine.
  • the second tank area of the dirty liquid tank is arranged at the end of the dirty liquid tank that faces away from the first tank area.
  • the second tank area preferably forms a tank extension facing the handle.
  • the tank extension enlarges the tank interior, which can be filled with liquid, and plunges into the second tank storage compartment.
  • latching elements complementary to one another can be arranged on the second tank area and on the second tank receiving compartment.
  • the latching elements can be designed, for example, in the form of latching depressions or latching recesses and latching projections or latching hooks which dip into and / or engage behind them.
  • the second tank receiving compartment has a bottom wall with at least one latching element which interacts with a complementarily designed latching element of the dirty liquid tank.
  • the bottom wall of the second tank receiving compartment has two latching elements which are arranged at a distance from one another and each interact with a complementarily designed latching element of the dirty liquid tank.
  • the housing of the portable hard surface cleaning device has two housing half-shells, which together form the second tank receiving compartment and each define a partial area of the bottom wall of the second tank receiving compartment, wherein a locking element is arranged in each partial area, which has a complementary locking element of the dirty liquid tank cooperates.
  • the at least one locking element of the bottom wall of the second tank receiving compartment preferably has a locking projection, and the complementary locking element of the dirty liquid tank is advantageously designed as a locking recess.
  • the dirty liquid tank can be designed to be elastically deformable at least in some areas, so that it deforms elastically when inserted into the second tank receiving compartment, and a latching connection between the second tank receiving compartment and the second tank area is achieved by means of mutually associated latching elements.
  • the second tank receiving compartment is designed to be elastically deformable and, when the second tank region is inserted into the second tank receiving compartment, deforms elastically at least in regions, with the formation of a latching connection.
  • the second tank receptacle preferably has a bottom wall which forms at least one spring element which acts on the second tank area with a spring force when the second tank area is inserted into the second tank receptacle.
  • the at least one spring element is preferably designed as a spring tongue.
  • the spring element carries a locking element, in particular a locking projection or a locking receptacle, the locking element interacting with a complementary locking element of the second tank area.
  • the second tank area has a stop surface which can be pressed against a stop collar of the second tank receiving compartment under the action of a spring force.
  • the stop surface can be designed, for example, in the form of a step which is pressed against the stop collar when the second tank region is positioned in the second tank receiving compartment.
  • the stop collar is expediently arranged on a ceiling wall of the second tank receiving compartment, and the stop surface of the second tank region is preferably arranged on an upper side of the second tank region, the second tank region being insertable into the second tank receiving compartment with elastic deformation of at least one spring element of a bottom wall of the second tank receiving compartment its stop surface, in particular with a step arranged on the top of the second tank area, can be pressed against the stop collar.
  • the at least one elastically deformable spring element of the bottom wall of the second tank receiving compartment exerts on the second tank area a spring force oriented in the direction of the stop collar, under the effect of which the stop surface, in particular a step of the second tank area arranged on the top side, exerts on the stop collar is pressed.
  • the hard surface cleaning device according to the invention preferably forms a portable window cleaning device which advantageously has a rechargeable battery. It is advantageous if the battery is arranged in the handle together with control, switching and charging electronics.
  • control, switching and charging electronics and the rechargeable battery are arranged on a common circuit board.
  • the drawing schematically shows an advantageous embodiment of a portable hard surface cleaning device according to the invention, which is denoted overall by reference number 10.
  • a portable hard surface cleaning device With the help of the portable hard surface cleaning device 10, liquid can be drawn off and sucked up from a hard surface, in particular from a window pane. Mirror surfaces or tiled walls can also be cleaned using the portable hard surface cleaning device 10.
  • the hard surface cleaning device 10 can be moved along the hard surface by the user in the manner of a manual window puller.
  • the hard surface cleaning device 10 forms a portable window cleaning device.
  • the hard surface cleaning device 10 comprises a housing 12, which is formed by a first housing half-shell 14 and a second housing half-shell 16.
  • the portable hard surface cleaning device 10 has a suction nozzle 18 and a dirty liquid tank 20 which can be detachably connected to the housing 12.
  • a suction turbine 22 and an electric motor 24 which can be driven to rotate the suction turbine 22 are arranged in the housing 12.
  • the housing 12 forms a separating chamber 26, in which a separating device 28 is arranged.
  • the separating device 28 comprises a flat baffle plate 30 and a curved baffle wall 32.
  • the curved baffle wall 32 covers a turbine inlet line 34 which dips into the separating chamber 26 and via which suction air can be fed to the suction turbine 22.
  • the suction nozzle 18 has a suction channel 36, which extends from a suction opening 38 of the suction nozzle 18 to a suction channel outlet 40, on which the baffle plate 30 is held, the baffle plate 30 being at a distance from the suction channel outlet 40 and being immersed in the separation chamber 26.
  • a first flexible pull-off lip 42 and a second flexible pull-off lip 44 are held at the suction opening 38.
  • the housing 12 On the side facing away from the turbine inlet line 34, the housing 12 forms a suction channel receiving shaft 46, into which a suction channel end section 48 of the suction nozzle 18 can be inserted.
  • the suction channel end section 48 forms the suction channel outlet 40 and carries the baffle plate 30 at its end facing away from the flexible pulling lips 42, 44.
  • the suction turbine 22 is arranged in a turbine space 50 formed by the housing 12, which is separated from the separation chamber 26 by means of a first partition 52.
  • the first partition 52 is penetrated by the turbine inlet line 34, which dips into the separation chamber 26.
  • the turbine inlet line 34 is surrounded by a sealing ring 54, with the aid of which it is ensured that liquid from the separation chamber 26 cannot inadvertently reach the suction turbine 22 along the outside of the turbine inlet line 34.
  • the turbine space 50 is delimited by a second partition 56 formed by the housing 12.
  • the suction turbine 22 is arranged between the first partition 52 and the second partition 56, and the electric motor 24 is arranged on the side of the second partition 56 facing away from the suction turbine 22 in a drive chamber 58 of the housing 12.
  • a motor shaft 60 of the electric motor 24 passes through the second partition 56 and is connected to the suction turbine 22 in a rotationally fixed manner.
  • a rechargeable battery 62 and control, switching and charging electronics 64 are positioned in the drive chamber 58.
  • the control, switching and charging electronics 64 cooperate with an actuating element 66, which in the exemplary embodiment shown as The pressure switch is designed to switch the electric motor 24 on and off.
  • the control, switching and charging electronics control the speed of the electric motor 24 and also the charging process of the battery 62.
  • the control, switching and charging electronics 64 are on together with the battery 62 a common circuit board 68 which is positioned in the drive chamber 58.
  • the housing 12 forms a handle 70 of the portable hard surface cleaning device 10, which can be gripped by the user by hand.
  • the drive chamber 58 is positioned in the handle 70.
  • the separation chamber 26 has a liquid outlet 72, which is formed by an outlet funnel 74.
  • the outlet funnel 74 opens into a first tank receiving compartment 76, which is defined by the housing 12 and is arranged directly adjacent to the suction turbine 22.
  • the turbine chamber 50 is separated from the first tank receiving compartment 76 by means of a third partition wall 78 which is formed transversely to the first partition wall 52 and transversely to the second partition wall 56.
  • the third partition 78 has three exhaust openings 80, 82, 84 which are formed by the second housing half-shell 16, whereas the first housing half-shell 14 does not form any such exhaust openings. Via the exhaust air openings 80, 82, 84, the exhaust air of the suction turbine 22 can flow from the turbine space 50 into the first tank receiving compartment 76.
  • the housing 12 forms a second tank receiving compartment 86.
  • the second tank storage compartment 86 has a bottom wall 88, a top wall 90 and first and second side walls which connect the bottom wall 88 to the top wall 90 in one piece.
  • the first side wall 92 is formed by the first housing half-shell 14, and the second side wall 94 is formed by the second housing half-shell 16.
  • the second tank compartment has 86 has an end wall 96 which delimits the second tank storage compartment 86 in the direction of the handle 70.
  • the dirty liquid tank 20 has a first tank area 98, which can be inserted into the first tank receiving compartment 76, and a second tank area 100, which can be inserted into the second tank receiving compartment 86.
  • the first tank area 98 has a filler neck 102 which defines at its free end a tank opening 104 through which the dirty liquid tank 20 can be filled with liquid which is separated from the sucked-in liquid-air mixture in the separation chamber 26.
  • the filler neck 102 receives a filling device 106, which dips into the dirty liquid tank 20 and comprises a filler pipe 108 and a ventilation pipe 110.
  • the vent pipe 110 runs parallel to the filler pipe 108, with its end facing away from the dirty liquid tank 20 projecting beyond the filler pipe 108 and immersed in the outlet funnel 74.
  • the filling device 106 has a filling trough 112, which can be placed on the tank opening 104 of the filler neck 102 and surrounds the outlet funnel 74 in the circumferential direction in a liquid-tight manner with the interposition of a sealing element 114.
  • the filler pipe 108 connects to the filler pan 112 on the side facing away from the outlet funnel 74.
  • the first tank area 98 is surrounded by an annular space 116, to which the exhaust air from the suction turbine 22 can be supplied via the exhaust air openings 80, 82, 84 and from which the exhaust air can escape to the surroundings via an air outlet opening 118.
  • the air outlet opening 118 is arranged on the side of the first tank receiving compartment 76 facing away from the handle 70 and is delimited on the one hand by the first tank area 98 and on the other hand by an end wall 120 of the housing 12.
  • a recess 122 of the dirty liquid tank 20 adjoins the air outlet opening 118, which recess faces away from the handle 70 End wall 124 of the dirty liquid tank 20 is molded. This is particularly evident from the Figures 2 and 4th clear.
  • the second tank area 100 is designed as a tank extension 126 on the rear, which dips into the second tank storage compartment 86 and has a step 128 on its upper side facing the ceiling wall 90 of the second tank storage compartment 86, which step forms an abutment surface 130.
  • the stop surface 130 bears against a stop collar 132 of the second tank receiving compartment 86.
  • the stop collar 132 is formed by an edge of the ceiling wall 90.
  • the bottom wall 88 of the second tank receiving compartment 86 has a first bottom wall section 134 formed by the first housing half-shell 14 and a second bottom wall section 136 formed by the second housing half-shell 16.
  • a recess 138 in the bottom wall 88 extends between the first bottom wall section 134 and the second bottom wall section 136 Figure 4 clear.
  • the first bottom wall section 134 forms a first spring tongue 140 which, with the exception of its end region 142 facing the end wall 96, is surrounded by a first through slot 144, so that the first spring tongue 140 can be elastically deformed relative to the remaining area of the first bottom wall section 134.
  • the first spring tongue 140 On its free end facing away from the end wall 96, the first spring tongue 140 carries a first latching projection 146.
  • the second bottom wall section 136 forms a second spring tongue 148 which, with the exception of its end region 150 facing the end wall 96, is surrounded by a second through slot 152, so that the second spring tongue 148 can be elastically deformed relative to the remaining region of the second bottom wall section 136.
  • the second spring tongue 148 At its free end facing away from the end wall 96, the second spring tongue 148 carries a second latching projection, which is not shown in the drawing and is identical to the first latching projection 146.
  • the second tank area 100 has on its underside facing the first bottom wall section 134 a first tank recess 154, and facing the second bottom wall section 136 the second tank section 100 has a second tank recess 156. If the second tank area 100 is inserted into the second tank receiving compartment 86, the first tank molding 154 slides along the first bottom wall section 134 and the second tank molding 156 slides along the second bottom wall section 136.
  • a first latching recess 158 is arranged in the first tank recess 154, which cooperates with the first latching projection 146 of the first spring tongue 140, and a second latching recess 160 is arranged in the second tank recess 156, which cooperates with the second latching projection arranged on the free of the second spring tongue 148 .
  • the second tank area 100 can be releasably latched to the second tank receiving compartment 86 by means of the latching depressions and latching projections.
  • the second tank area 100 is subjected to a spring force in the direction of the ceiling wall 90, under the action of which the stop surface 130 is pressed against the stop collar 132.
  • the second tank area 100 is thereby reliably held in the second tank holding compartment 86 and can be easily removed from the second tank holding compartment 86 by the user if required.
  • the portable hard surface cleaning device 10 can be moved along the hard surface to be cleaned in the manner of a manual window puller, with liquid located on the hard surface collecting at the suction opening 38. Under the action of the suction flow generated by the suction turbine 22, the liquid can be sucked up together with suction air from the hard surface. The mixture of liquid and suction air flows through the suction channel 36. The liquid can be separated from the sucked-in air within the separation chamber 26. The suction air can then be sucked out of the separation chamber 26 via the turbine inlet line 34 and from the suction turbine 22 via the exhaust air openings 80, 82, 84 and the annular space 116 are released to the environment.
  • the flow direction of the exhaust air has a tangential directional component with respect to the central axis 162 of the annular space 116 when it flows into the annular space 116, which is defined by the central axis of the outlet funnel 74 and the filler neck 102 aligned with the outlet funnel 74.
  • the exhaust air When flowing out of the annular space 116, the exhaust air has an axial directional component with respect to the central axis 162 and flows outside the dirty liquid tank 20 in the region of the depression 122 along its end wall 124 without the user being affected thereby.
  • the liquid separated within the separating chamber 26 can reach the dirty liquid tank 20 via the outlet funnel 74, the filling trough 112 and the filling pipe 108.
  • the dirty liquid tank 20 can be separated from the housing 12 for emptying.
  • the user can grasp the dirty liquid tank 20 by hand and first remove the second tank area 100 from the second tank storage compartment 86 and then the first tank area 98 from the first tank storage compartment 76.
  • the user can then separate the filling device 106 from the dirty liquid tank 20 and empty it.
  • the user can reconnect the filling device 106 to the dirty liquid tank 20 and then fix it again to the housing 12, first inserting the first tank area 98 into the first tank receiving compartment 76 and then inserting the second tank area 100 into the second tank receiving compartment 86.
  • the filling trough 112 of the filling device 106 assumes a position on the outlet funnel 74, with the sealing element 114 ensuring a liquid-tight connection between the outlet funnel 74 and the filling trough 112.
  • the provision of the latching connection between the second tank area 100 and the second tank receiving compartment 86 and the abutment of the stop surface 130 on the stop collar 132 ensures that the dirty liquid tank 20 is reliably held on the housing.
  • the portable hard surface cleaning device 10 has a gripping opening 164 between the handle 70 and the dirty liquid tank 20, which the user can grip through with his fingers . This facilitates the handling of the hard surface cleaning device 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Description

Die Erfindung betrifft ein tragbares Hartflächenreinigungsgerät zum Abziehen und Absaugen einer Flüssigkeit von einer Hartfläche, insbesondere einer Fensterscheibe, mit einem Handgriff und einer bezogen auf eine aufrechte Stellung des Hartflächenreinigungsgeräts oberhalb des Handgriffs in einem Gehäuse angeordneten Saugturbine, und mit einer mit der Saugturbine in Strömungsverbindung stehenden Saugdüse zum Aufsaugen eines Flüssigkeits-Luftgemisches von der Hartfläche, und mit einem mit dem Gehäuse lösbar verbindbaren Schmutzflüssigkeitstank, wobei Flüssigkeit aus dem aufgesaugten Flüssigkeits-Luftgemisch abscheidbar und im Schmutzflüssigkeitstank deponierbar ist, und wobei der Schmutzflüssigkeitstank einen ersten Tankbereich mit einer Tanköffnung aufweist, der in ein seitlich neben der Saugturbine versetzt zum Handgriff angeordnetes erstes Tankaufnahmefach des Gehäuses einsetzbar ist.The invention relates to a portable hard surface cleaning device for drawing off and sucking off a liquid from a hard surface, in particular a window pane, with a handle and a suction turbine arranged in a housing in relation to an upright position of the hard surface cleaning device above the handle, and with a flow connection with the suction turbine Suction nozzle for sucking up a liquid-air mixture from the hard surface, and with a dirty liquid tank that can be detachably connected to the housing, whereby liquid can be separated from the sucked-up liquid-air mixture and deposited in the dirty liquid tank, and wherein the dirty liquid tank has a first tank area with a tank opening that is in a first tank receptacle compartment of the housing, which is arranged laterally next to the suction turbine, can be inserted.

Ein derartiges tragbares Hartflächenreinigungsgerät ist aus der WO 2013/143616 A1 bekannt. Mit seiner Hilfe kann eine Hartfläche, insbesondere eine Fensterscheibe, gereinigt werden. Das tragbare Hartflächenreinigungsgerät weist eine Saugdüse auf, an der mindestens eine Abziehlippe angeordnet ist, die entlang der Hartfläche bewegt werden kann, so dass Flüssigkeit von der Hartfläche abgezogen werden kann. Die Flüssigkeit sammelt sich an einer Saugöffnung der Saugdüse. Mit Hilfe einer Saugturbine kann eine Saugströmung erzielt werden, unter deren Wirkung ein Gemisch aus Flüssigkeit und Luft über die Saugöffnung in einen Saugkanal der Saugdüse eingesaugt wird.Such a portable hard surface cleaning device is from the WO 2013/143616 A1 known. With its help, a hard surface, in particular a window pane, can be cleaned. The portable hard surface cleaning device has a suction nozzle on which at least one pulling lip is arranged, which can be moved along the hard surface, so that liquid can be drawn off from the hard surface. The liquid collects at a suction opening of the suction nozzle. With the aid of a suction turbine, a suction flow can be achieved, under the effect of which a mixture of liquid and air is sucked into a suction channel of the suction nozzle via the suction opening.

Bei dem aus der WO 2013/143616 A1 bekannten Hartflächenreinigungsgerät ist im Strömungsweg zwischen der Saugdüse und der Saugturbine eine Abscheideeinrichtung angeordnet, mit deren Hilfe Flüssigkeit aus dem aufgesaugten Flüssigkeits-Luftgemisch abgeschieden werden kann. Die Flüssigkeit kann in einem Schmutzflüssigkeitstank gesammelt werden, der am Gehäuse lösbar gehalten ist, und die eingesaugte Luft kann von der Saugturbine als Abluft an die Umgebung abgegeben werden.The one from the WO 2013/143616 A1 Known hard surface cleaning device, a separator is arranged in the flow path between the suction nozzle and the suction turbine, with the aid of which liquid from the sucked up Liquid-air mixture can be separated. The liquid can be collected in a dirty liquid tank, which is held detachably on the housing, and the sucked-in air can be released into the environment as exhaust air by the suction turbine.

Der Schmutzflüssigkeitstank des aus der WO 2013/143616 A1 bekannten Hartflächenreinigungsgeräts kann mit einem ersten Tankbereich, der eine Tanköffnung aufweist, in ein seitlich neben der Saugturbine und versetzt zum Handgriff angeordnetes erstes Tankaufnahmefach des Gehäuses eingesetzt werden.The dirty liquid tank from the WO 2013/143616 A1 Known hard surface cleaning device can be used with a first tank area, which has a tank opening, in a side of the suction turbine and offset to the handle arranged first tank receiving compartment of the housing.

Die Saugturbine ist bezogen auf eine aufrechte Stellung des Hartflächenreinigungsgeräts oberhalb des Handgriffs angeordnet. Dies hat den Vorteil, dass der Benutzer das tragbare Hartflächenreinigungsgerät mit geringem Kraftaufwand an der zu reinigenden Hartfläche entlangführen kann, da der Schwerpunkt des Hartflächenreinigungsgeräts oberhalb des Handgriffs angeordnet ist.The suction turbine is arranged above the handle in relation to an upright position of the hard surface cleaning device. This has the advantage that the user can guide the portable hard surface cleaning device with little effort along the hard surface to be cleaned, since the center of gravity of the hard surface cleaning device is arranged above the handle.

Die Abluft wird bei dem aus der WO 2013/143616 A1 bekannten tragbaren Hartflächenreinigungsgerät in vertikaler Richtung durch den gesamten Handgriff hindurchgeführt und über eine am freien Ende des Handgriffs angeordnete Durchbrechung an die Umgebung abgegeben. Dies hat zur Folge, dass die Abluft einem nicht unbeträchtlichen Strömungswiderstand unterliegt, der den Energieverbrauch des Hartflächenreinigungsgeräts erhöht.The exhaust air is from the WO 2013/143616 A1 known portable hard surface cleaning device in the vertical direction through the entire handle and released to the environment via an opening arranged at the free end of the handle. As a result, the exhaust air is subject to a not inconsiderable flow resistance, which increases the energy consumption of the hard surface cleaning device.

Aufgabe der vorliegenden Erfindung ist es, ein tragbares Hartflächenreinigungsgerät der eingangs genannten Art derart weiterzubilden, dass es einen geringeren Energieverbrauch aufweist.The object of the present invention is to develop a portable hard surface cleaning device of the type mentioned at the outset in such a way that it has a lower energy consumption.

Diese Aufgabe wird bei einem tragbaren Hartflächenreinigungsgerät der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, dass die Saugturbine über mindestens eine Abluftöffnung mit dem ersten Tankaufnahmefach in Strömungsverbindung steht und Abluft über die mindestens eine Abluftöffnung und das erste Tankaufnahmefach an die Umgebung abgebbar ist.This object is achieved according to the invention in a portable hard surface cleaning device of the generic type in that the suction turbine is in flow connection with the first tank receiving compartment via at least one exhaust air opening and exhaust air can be discharged to the environment via the at least one exhaust air opening and the first tank receiving compartment.

Das erste Tankaufnahmefach, in das ein erster Tankbereich des Schmutzflüssigkeitstanks eingesetzt werden kann, dient beim erfindungsgemäßen Hartflächenreinigungsgerät auch als Abluftraum, über den die von der Saugturbine angesaugte Luft an die Umgebung abgegeben werden kann. Das erste Tankaufnahmefach steht über mindestens eine Abluftöffnung mit der Saugturbine in Strömungsverbindung, so dass die Abluft von der Saugturbine durch die mindestens eine Abluftöffnung hindurch in das erste Tankaufnahmefach einströmen und vom Tankaufnahmefach an die Umgebung abgegeben werden kann. Innerhalb des Tankaufnahmefachs kann die Abluft den ersten Tankbereich des Schmutzflüssigkeitstanks umströmen. Es hat sich gezeigt, dass dadurch die Geräuschentwicklung der Abluft gering gehalten werden kann. Die Abluft erfährt auf ihrem Weg von der Saugturbine zur Umgebung eher geringe Strömungsverluste. Das erfindungsgemäße tragbare Hartflächenreinigungsgerät weist daher einen geringeren Energieverbrauch auf, und eine wiederaufladbare Batterie des Hartflächenreinigungsgeräts zeichnet sich durch eine längere Lebensdauer aus.In the hard surface cleaning device according to the invention, the first tank receiving compartment, into which a first tank area of the dirty liquid tank can be inserted, also serves as an exhaust air space through which the air sucked in by the suction turbine can be released to the environment. The first tank receiving compartment is in flow connection with the suction turbine via at least one exhaust air opening, so that the exhaust air from the suction turbine can flow through the at least one exhaust air opening into the first tank receiving compartment and can be released from the tank receiving compartment to the surroundings. The exhaust air can flow around the first tank area of the dirty liquid tank within the tank receiving compartment. It has been shown that this can keep the noise level in the exhaust air low. The exhaust air experiences rather little flow losses on its way from the suction turbine to the environment. The portable hard surface cleaning device according to the invention therefore has a lower energy consumption, and a rechargeable battery of the hard surface cleaning device is distinguished by a longer service life.

Aus dem aufgesaugten Flüssigkeits-Luftgemisch kann Flüssigkeit abgeschieden werden. Die Abscheidung kann in der Saugdüse, im Gehäuse, in der Saugturbine und/oder im Schmutzflüssigkeitstank erfolgen.Liquid can be separated from the sucked-up liquid-air mixture. The separation can take place in the suction nozzle, in the housing, in the suction turbine and / or in the dirty liquid tank.

Bevorzugt ist in der Saugdüse, im Gehäuse, im Bereich der Saugturbine und/ oder im Schmutzflüssigkeitstank eine Abscheideeinrichtung zum Abscheiden von Flüssigkeit aus dem aufgesaugten Flüssigkeits-Luftgemisch angeordnet.A separating device for separating liquid from the sucked-up liquid-air mixture is preferably arranged in the suction nozzle, in the housing, in the area of the suction turbine and / or in the dirty liquid tank.

Von Vorteil ist es, wenn die Abscheideeinrichtung im Strömungsweg zwischen einer Saugöffnung der Saugdüse und der mindestens einen Abluftöffnung angeordnet ist.It is advantageous if the separating device is arranged in the flow path between a suction opening of the suction nozzle and the at least one exhaust air opening.

Insbesondere kann vorgesehen sein, dass die Abscheideeinrichtung im Strömungsweg zwischen der Saugdüse und der Saugturbine angeordnet ist.In particular, it can be provided that the separating device is arranged in the flow path between the suction nozzle and the suction turbine.

Günstigerweise ist die Abscheideeinrichtung vom Schmutzflüssigkeitstank und/oder von der Saugdüse baulich getrennt.The separating device is advantageously structurally separated from the dirty liquid tank and / or from the suction nozzle.

Die Saugdüse ist vorteilhafterweise mit dem Gehäuse steckbar verbindbar.The suction nozzle is advantageously connectable to the housing.

Die Abscheideeinrichtung ist bei einer vorteilhaften Ausgestaltung der Erfindung in einer Abscheidekammer angeordnet. Die Abscheidekammer ist bevorzugt lösbar oder unlösbar mit dem Gehäuse verbunden.In an advantageous embodiment of the invention, the separating device is arranged in a separating chamber. The separation chamber is preferably detachably or non-detachably connected to the housing.

Bevorzugt ist die Saugdüse mit der Abscheidekammer lösbar oder unlösbar verbunden.The suction nozzle is preferably releasably or non-releasably connected to the separation chamber.

Der Handgriff kann als separates Bauteil ausgestaltet sein, das mit dem Gehäuse lösbar oder unlösbar verbunden ist.The handle can be designed as a separate component which is detachably or non-detachably connected to the housing.

Besonders vorteilhaft ist es, wenn der Handgriff einstückig mit dem Gehäuse verbunden ist, so dass das Gehäuse und der Handgriff ein gemeinsames Bauteil ausbilden, das vorzugsweise aus Kunststoff gefertigt ist.It is particularly advantageous if the handle is integrally connected to the housing, so that the housing and the handle form a common component, which is preferably made of plastic.

Der Schmutzflüssigkeitstank ist bei einer vorteilhaften Ausgestaltung der Erfindung vom Benutzer mit der Hand umgreifbar, wenn der erste Tankbereich in das erste Tankaufnahmefach eingesetzt ist. Dies erleichtert es dem Benutzer, den Schmutzflüssigkeitstank zu ergreifen und dem ersten Tankaufnahmefach zu entnehmen.In an advantageous embodiment of the invention, the dirty liquid tank can be gripped by the user by hand when the first tank area is inserted into the first tank receiving compartment. This makes it easier for the user to grip the dirty liquid tank and remove it from the first tank storage compartment.

Günstig ist es, wenn zwischen dem Handgriff und dem Schmutzflüssigkeitstank eine Greiföffnung angeordnet ist, die vom Benutzer beim Umgreifen des Handgriffs durchgriffen werden kann. Beim Reinigen einer Hartfläche kann der Benutzer den Handgriff umgreifen und hierbei mit seinen Fingern die Greiföffnung durchgreifen. Auch beim Umgreifen des Schmutzflüssigkeitstanks kann der Benutzer die Greiföffnung durchgreifen.It is expedient if a gripping opening is arranged between the handle and the dirty liquid tank, which can be reached by the user when gripping the handle. When cleaning a hard surface, the user can grasp the handle and reach through the gripping opening with his fingers. The user can also reach through the gripping opening when gripping the dirty liquid tank.

Von Vorteil ist es, wenn die Abluft auf der dem Handgriff abgewandten Seite des ersten Tankaufnahmefachs an die Umgebung abgebbar ist. Dadurch kann eine Beeinträchtigung des Benutzers durch die Abluft vermieden werden.It is advantageous if the exhaust air can be discharged to the environment on the side of the first tank receiving compartment facing away from the handle. This prevents the user from being affected by the exhaust air.

Bevorzugt ist der erste Tankbereich innerhalb des ersten Tankaufnahmefachs von einem Ringraum umgeben, in den die mindestens eine Abluftöffnung einmündet und von dem aus die Abluft über mindestens eine Luftauslassöffnung an die Umgebung abgebbar ist. Der Ringraum innerhalb des ersten Tankaufnahmefachs erstreckt sich in Umfangsrichtung um den ersten Tankbereich. Die Abluft der Saugturbine kann über die mindestens eine Abluftöffnung in den Ringraum gelangen. Anschließend kann die Abluftöffnung den ersten Tankbereich in Umfangsrichtung zumindest teilweise umströmen, um dann - vorzugsweise auf der dem Handgriff abgewandten Seite - an die Umgebung abgegeben zu werden.The first tank area within the first tank receiving compartment is preferably surrounded by an annular space, into which the at least one exhaust air opening opens and from which the exhaust air can be discharged to the surroundings via at least one air outlet opening. The annular space within the first tank receiving compartment extends in the circumferential direction around the first tank area. The exhaust air from the suction turbine can reach the annular space via the at least one exhaust air opening. The exhaust air opening can then flow around the first tank area at least partially in the circumferential direction, in order then to be released to the surroundings, preferably on the side facing away from the handle.

Die mindestens eine Luftauslassöffnung ist bei einer vorteilhaften Ausgestaltung der Erfindung zwischen einer Stirnwand des Gehäuses und einer Tankwand des Schmutzflüssigkeitstanks angeordnet. Zwischen der Tankwand und der Stirnwand des Gehäuses erstreckt sich somit ein Freiraum, der die mindestens eine Luftauslassöffnung ausbildet und es der Abluft ermöglicht, aus dem Ringraum herauszuströmen.In an advantageous embodiment of the invention, the at least one air outlet opening is arranged between an end wall of the housing and a tank wall of the dirty liquid tank. A free space thus extends between the tank wall and the end wall of the housing, which space forms the at least one air outlet opening and enables the exhaust air to flow out of the annular space.

Von besonderem Vorteil ist es, wenn der Schmutzflüssigkeitstank an seiner dem Handgriff abgewandten Vorderseite eine Vertiefung aufweist, die sich an die mindestens eine Luftauslassöffnung anschließt. Die aus dem Ringraum des ersten Tankaufnahmefachs herausströmende Abluft kann außerhalb des Schmutzflüssigkeitstanks an dessen Vertiefung entlangströmen. Dies hat eine weitere Verringerung von Strömungsverlusten der Abluft zur Folge, da diese beim Herausströmen aus dem Ringraum keinen starken Richtungsänderungen unterliegt.It is particularly advantageous if the dirty liquid tank has a recess on its front side facing away from the handle, which depression adjoins the at least one air outlet opening. The exhaust air flowing out of the annular space of the first tank receiving compartment can flow outside the dirty liquid tank along its depression. This results in a further reduction in flow losses of the exhaust air, since this does not undergo any strong changes in direction when flowing out of the annular space.

Die über die mindestens eine Abluftöffnung in den Ringraum einströmende Abluft weist vorzugsweise eine tangentiale Richtungskomponente bezogen auf die Mittelachse des Ringraums auf. Die Abluft wird somit dem Ringraum in einer Strömungsrichtung zugeführt, die es der Abluft mit geringen Strömungsverlusten erlaubt, den Ringraum zumindest teilweise zu durchströmen.The exhaust air flowing into the annular space via the at least one exhaust air opening preferably has a tangential directional component in relation to the central axis of the annulus. The exhaust air is thus fed to the annular space in a flow direction, which allows the exhaust air with low flow losses to at least partially flow through the annular space.

Die Strömungsrichtung der über die mindestens eine Luftauslassöffnung aus dem Ringraum herausströmenden Abluft weist vorzugsweise eine axiale Richtungskomponente bezogen auf die Mittelachse des Ringraums auf.The flow direction of the exhaust air flowing out of the annular space via the at least one air outlet opening preferably has an axial directional component with respect to the central axis of the annular space.

Günstigerweise strömt die aus dem Ringraum herausströmende Abluft zumindest teilweise an der dem Handgriff abgewandten Außenseite des Schmutzflüssigkeitstanks entlang.The exhaust air flowing out of the annular space advantageously flows at least partially along the outside of the dirty liquid tank facing away from the handle.

Die Saugturbine ist bei einer bevorzugten Ausgestaltung der Erfindung vom ersten Tankaufnahmebereich durch eine Trennwand getrennt, die die mindestens eine Abluftöffnung aufweist. Die Trennwand trennt einen die Saugturbine aufnehmenden Turbinenraum von dem ersten Tankaufnahmefach, und die mindestens eine Abluftöffnung ermöglicht es der Abluft, aus dem Turbinenraum in das erste Tankaufnahmefach zu gelangen.In a preferred embodiment of the invention, the suction turbine is separated from the first tank receiving area by a partition which has the at least one exhaust air opening. The dividing wall separates a turbine space accommodating the suction turbine from the first tank accommodating compartment, and the at least one exhaust air opening enables the exhaust air to pass from the turbine compartment into the first tank accommodating compartment.

Bei einer besonders vorteilhaften Ausgestaltung der Erfindung weist das Gehäuse des tragbaren Hartflächenreinigungsgeräts zwei Gehäusehalbschalen auf, wobei nur eine der beiden Gehäusehalbschalen die mindestens eine Abluftöffnung ausbildet, über die der die Saugturbine aufnehmende Turbinenraum mit dem ersten Tankaufnahmefach in Strömungsverbindung steht. Bei einer derartigen Ausgestaltung ist die mindestens eine Abluftöffnung versetzt zu einer Mittelebene des Hartflächenreinigungsgeräts angeordnet, wobei die Mittelebene von der Trennfuge zwischen den beiden Gehäusehalbschalen definiert wird.In a particularly advantageous embodiment of the invention, the housing of the portable hard surface cleaning device has two housing half-shells, with only one of the two housing half-shells forming the at least one exhaust air opening, via which the turbine chamber receiving the suction turbine is in flow connection with the first tank receiving compartment. In such an embodiment, the at least one exhaust air opening is arranged offset to a central plane of the hard surface cleaning device, the central plane being defined by the parting line between the two housing half-shells.

Der erste Tankbereich weist bei einer vorteilhaften Ausführungsform der Erfindung einen Einfüllstutzen auf. Der Einfüllstutzen definiert mit seinem freien Ende die Tanköffnung, über die der Schmutzflüssigkeitstank mit Flüssigkeit befüllt werden kann, die von der Abscheideeinrichtung aus dem aufgesaugten Flüssigkeits-Luftgemisch abgeschieden wurde.In an advantageous embodiment of the invention, the first tank area has a filler neck. The free end of the filler neck defines the tank opening through which the dirty liquid tank with liquid can be filled, which was separated by the separating device from the sucked-up liquid-air mixture.

Die Abscheideeinrichtung ist günstigerweise in einer vom Gehäuse gebildeten Abscheidekammer angeordnet, von der der Schmutzflüssigkeitstank baulich getrennt ist. Bezogen auf die Strömungsrichtung des eingesaugten Flüssigkeits-Luftgemisches ist die Abscheidekammer der Saugturbine vorgelagert.The separating device is advantageously arranged in a separating chamber formed by the housing, from which the dirty liquid tank is structurally separated. In relation to the direction of flow of the sucked-in liquid-air mixture, the separating chamber is located upstream of the suction turbine.

Die Abscheidekammer ist bevorzugt über eine Luftauslassöffnung mit der Saugturbine und über eine Flüssigkeitsauslassöffnung mit dem Schmutzflüssigkeitstank verbunden.The separation chamber is preferably connected to the suction turbine via an air outlet opening and to the dirty liquid tank via a liquid outlet opening.

Von besonderem Vorteil ist es, wenn die Flüssigkeitsauslassöffnung an einem Auslasstrichter angeordnet ist, der in das erste Tankaufnahmefach einmündet.It is particularly advantageous if the liquid outlet opening is arranged on an outlet funnel that opens into the first tank-receiving compartment.

Bevorzugt ist an dem der Abscheidekammer abgewandten Ende des Auslasstrichters eine Befüllungseinrichtung positionierbar, über die die Flüssigkeit dem Schmutzflüssigkeitstank zugeführt werden kann.Preferably, a filling device can be positioned at the end of the outlet funnel facing away from the separation chamber, via which the liquid can be fed to the dirty liquid tank.

Die Befüllungseinrichtung weist bei einer vorteilhaften Ausgestaltung der Erfindung ein Einfüllrohr auf, das in den Schmutzflüssigkeitstank eintaucht, sowie ein Entlüftungsrohr, das parallel zum Einfüllrohr angeordnet ist. Über das Entlüftungsrohr kann beim Befüllen des Schmutzflüssigkeitstanks im Tank befindliche Luft aus dem Tank herausströmen.In an advantageous embodiment of the invention, the filling device has a filler pipe which dips into the dirty liquid tank, and a vent pipe which is arranged parallel to the filler pipe. Air in the tank can flow out of the tank via the ventilation pipe when filling the dirty liquid tank.

Bei einer vorteilhaften Ausgestaltung der Erfindung weist der Schmutzflüssigkeitstank einen im Abstand zum ersten Tankbereich angeordneten zweiten Tankbereich auf, der an einem der Saugturbine abgewandten Endbereich des Handgriffs positionierbar ist. Mit seinem zweiten Tankbereich kann sich somit der Schmutzflüssigkeitsbehälter am Handgriff abstützen.In an advantageous embodiment of the invention, the dirty liquid tank has a second tank area which is arranged at a distance from the first tank area and which can be positioned on an end area of the handle facing away from the suction turbine. With its second tank area, the dirty liquid container can thus be supported on the handle.

Um zu vermeiden, dass sich der Schmutzflüssigkeitstank unbeabsichtigt vom Gehäuse ablöst, ist das Gehäuse des tragbaren Hartflächenreinigungsgeräts beim einer vorteilhaften Ausführungsform der Erfindung an dem der Saugturbine abgewandten Endbereich des Handgriffs als zweites Tankaufnahmefach ausgebildet, in das der zweite Tankbereich des Schmutzflüssigkeitstanks einsetzbar ist. Der Schmutzflüssigkeitstank kann dadurch besonders zuverlässig am Gehäuse gehalten werden. Mit seinem ersten Tankbereich kann der Schmutzflüssigkeitstank in das der Saugturbine unmittelbar benachbart angeordnete erste Tankaufnahmefach eingesetzt werden, und mit seinem zweiten Tankbereich kann der Schmutzflüssigkeitstank in das zweite Tankaufnahmefach eingesetzt werden, das an dem der Saugturbine abgewandten Ende des Handgriffs angeordnet ist.To prevent the dirty liquid tank from unintentionally detaching from the housing, the housing of the portable hard surface cleaning device is In an advantageous embodiment of the invention, on the end region of the handle facing away from the suction turbine, it is designed as a second tank receiving compartment into which the second tank region of the dirty liquid tank can be inserted. The dirty liquid tank can thus be held particularly reliably on the housing. With its first tank area, the dirty liquid tank can be inserted into the first tank receiving compartment arranged directly adjacent to the suction turbine, and with its second tank area the dirty liquid tank can be inserted into the second tank receiving compartment, which is arranged at the end of the handle facing away from the suction turbine.

Der zweite Tankbereich des Schmutzflüssigkeitstanks ist bei einer vorteilhaften Ausgestaltung der Erfindung an dem Ende des Schmutzflüssigkeitstanks angeordnet, das dem ersten Tankbereich abgewandt ist.In an advantageous embodiment of the invention, the second tank area of the dirty liquid tank is arranged at the end of the dirty liquid tank that faces away from the first tank area.

Bevorzugt bildet der zweite Tankbereich eine dem Handgriff zugewandte Tankerweiterung aus. Die Tankerweiterung vergrößert den Tankinnenraum, der mit Flüssigkeit befüllt werden kann, und taucht in das zweite Tankaufnahmefach ein.The second tank area preferably forms a tank extension facing the handle. The tank extension enlarges the tank interior, which can be filled with liquid, and plunges into the second tank storage compartment.

Von Vorteil ist es, wenn der zweite Tankbereich mit dem zweiten Tankaufnahmefach lösbar verrastbar ist. Zur Herstellung einer lösbaren Rastverbindung können am zweiten Tankbereich und am zweiten Tankaufnahmefach komplementär zueinander ausgestaltete Rastelemente angeordnet sein. Die Rastelemente können beispielsweise in Form von Rastvertiefungen oder Rastausnehmnungen und in diese eintauchende und/oder diese hintergreifende Rastvorsprünge oder Rasthaken ausgebildet sein.It is advantageous if the second tank area can be releasably latched to the second tank receiving compartment. To produce a releasable latching connection, latching elements complementary to one another can be arranged on the second tank area and on the second tank receiving compartment. The latching elements can be designed, for example, in the form of latching depressions or latching recesses and latching projections or latching hooks which dip into and / or engage behind them.

Von Vorteil ist es, wenn das zweite Tankaufnahmefach eine Bodenwand aufweist mit mindestens einem Rastelement, das mit einem komplementär ausgestalteten Rastelement des Schmutzflüssigkeitstanks zusammenwirkt.It is advantageous if the second tank receiving compartment has a bottom wall with at least one latching element which interacts with a complementarily designed latching element of the dirty liquid tank.

Besonders günstig ist es, wenn die Bodenwand des zweiten Tankaufnahmefachs zwei Rastelemente aufweist, die im Abstand zueinander angeordnet sind und jeweils mit einem komplementär ausgestalteten Rastelement des Schmutzflüssigkeitstanks zusammenwirken. Es kann beispielsweise vorgesehen sein, dass das Gehäuse des tragbaren Hartflächenreinigungsgeräts zwei Gehäusehalbschalen aufweist, die gemeinsam das zweite Tankaufnahmefach ausbilden und jeweils einen Teilbereich der Bodenwand des zweiten Tankaufnahmefachs definieren, wobei in jedem Teilbereich ein Rastelement angeordnet ist, das mit einem komplementär ausgestalteten Rastelement des Schmutzflüssigkeitstanks zusammenwirkt.It is particularly favorable if the bottom wall of the second tank receiving compartment has two latching elements which are arranged at a distance from one another and each interact with a complementarily designed latching element of the dirty liquid tank. It can be provided, for example, that the housing of the portable hard surface cleaning device has two housing half-shells, which together form the second tank receiving compartment and each define a partial area of the bottom wall of the second tank receiving compartment, wherein a locking element is arranged in each partial area, which has a complementary locking element of the dirty liquid tank cooperates.

Das mindestens eine Rastelement der Bodenwand des zweiten Tankaufnahmefachs weist bevorzugt einen Rastvorsprung auf, und das komplementär ausgestaltete Rastelement des Schmutzflüssigkeitstanks ist günstigerweise als Rastvertiefung ausgestaltet.The at least one locking element of the bottom wall of the second tank receiving compartment preferably has a locking projection, and the complementary locking element of the dirty liquid tank is advantageously designed as a locking recess.

Von besonderem Vorteil ist es, wenn zumindest ein Wandabschnitt des zweiten Tankaufnahmefachs und/oder des zweiten Tankbereichs elastisch verformbar ist. Die elastische Verformbarkeit ermöglicht auf konstruktiv einfache Weise die Bereitstellung einer Rastverbindung zwischen dem Schmutzflüssigkeitstank und dem zweiten Tankaufnahmefach. Beispielsweise kann der Schmutzflüssigkeitstank zumindest bereichsweise elastisch verformbar ausgestaltet sein, so dass er sich beim Einsetzen in das zweite Tankaufnahmefach elastisch verformt und hierbei mittels einander zugeordneter Rastelemente eine Rastverbindung zwischen dem zweiten Tankaufnahmefach und dem zweiten Tankbereich erzielt wird.It is particularly advantageous if at least one wall section of the second tank receiving compartment and / or of the second tank area is elastically deformable. The elastic deformability enables a latching connection between the dirty liquid tank and the second tank receiving compartment to be provided in a structurally simple manner. For example, the dirty liquid tank can be designed to be elastically deformable at least in some areas, so that it deforms elastically when inserted into the second tank receiving compartment, and a latching connection between the second tank receiving compartment and the second tank area is achieved by means of mutually associated latching elements.

Alternativ oder ergänzend kann vorgesehen sein, dass das zweite Tankaufnahmefach elastisch verformbar ausgestaltet ist und sich beim Einsetzen des zweiten Tankbereichs in das zweite Tankaufnahmefach zumindest bereichsweise unter Ausbildung einer Rastverbindung elastisch verformt.As an alternative or in addition, it can be provided that the second tank receiving compartment is designed to be elastically deformable and, when the second tank region is inserted into the second tank receiving compartment, deforms elastically at least in regions, with the formation of a latching connection.

Bevorzugt weist das zweite Tankaufnahmefach eine Bodenwand auf, die mindestens ein Federelement ausbildet, das den zweiten Tankbereich mit einer Federkraft beaufschlagt, wenn der zweite Tankbereich in das zweite Tankaufnahmefach eingesetzt wird. Das mindestens eine Federelement ist vorzugsweise als Federzunge ausgestaltet.The second tank receptacle preferably has a bottom wall which forms at least one spring element which acts on the second tank area with a spring force when the second tank area is inserted into the second tank receptacle. The at least one spring element is preferably designed as a spring tongue.

Das Federelement trägt bei einer bevorzugten Ausgestaltung der Erfindung ein Rastelement, insbesondere einen Rastvorsprung oder eine Rastaufnahme, wobei das Rastelement mit einem komplementär ausgestalteten Rastelement des zweiten Tankbereichs zusammenwirkt.In a preferred embodiment of the invention, the spring element carries a locking element, in particular a locking projection or a locking receptacle, the locking element interacting with a complementary locking element of the second tank area.

Der zweite Tankbereich weist bei einer vorteilhaften Ausgestaltung der Erfindung eine Anschlagfläche auf, die unter der Wirkung einer Federkraft an einen Anschlagbund des zweiten Tankaufnahmefachs anpressbar ist. Die Anschlagfläche kann beispielsweise in Form einer Stufe ausgebildet sein, die gegen den Anschlagbund gedrückt wird, wenn der zweite Tankbereich im zweiten Tankaufnahmefach positioniert ist. Durch das Andrücken der Anschlagfläche an den Anschlagbund kann der zweite Tankbereich zuverlässig im zweiten Tankaufnahmefach gehalten werden.In an advantageous embodiment of the invention, the second tank area has a stop surface which can be pressed against a stop collar of the second tank receiving compartment under the action of a spring force. The stop surface can be designed, for example, in the form of a step which is pressed against the stop collar when the second tank region is positioned in the second tank receiving compartment. By pressing the stop surface against the stop collar, the second tank area can be held reliably in the second tank receiving compartment.

Der Anschlagbund ist günstigerweise an einer Deckenwand des zweiten Tankaufnahmefachs angeordnet, und die Anschlagfläche des zweiten Tankbereichs ist bevorzugt an einer Oberseite des zweiten Tankbereichs angeordnet, wobei der zweite Tankbereich unter elastischer Verformung zumindest eines Federelements einer Bodenwand des zweiten Tankaufnahmefachs in das zweite Tankaufnahmefach einsetzbar und mit seiner Anschlagfläche, insbesondere mit einer an der Oberseite des zweiten Tankbereichs angeordneten Stufe, an den Anschlagbund anpressbar ist. Bei einer derartigen Ausgestaltung der Erfindung übt das mindestens eine elastisch verformbare Federelement der Bodenwand des zweiten Tankaufnahmefachs auf den zweiten Tankbereich eine in Richtung auf den Anschlagbund ausgerichtete Federkraft aus, unter deren Wirkung die Anschlagfläche, insbesondere eine oberseitig angeordnete Stufe des zweiten Tankbereichs, an den Anschlagbund gepresst wird.The stop collar is expediently arranged on a ceiling wall of the second tank receiving compartment, and the stop surface of the second tank region is preferably arranged on an upper side of the second tank region, the second tank region being insertable into the second tank receiving compartment with elastic deformation of at least one spring element of a bottom wall of the second tank receiving compartment its stop surface, in particular with a step arranged on the top of the second tank area, can be pressed against the stop collar. In such an embodiment of the invention, the at least one elastically deformable spring element of the bottom wall of the second tank receiving compartment exerts on the second tank area a spring force oriented in the direction of the stop collar, under the effect of which the stop surface, in particular a step of the second tank area arranged on the top side, exerts on the stop collar is pressed.

Das erfindungsgemäße Hartflächenreinigungsgerät bildet bevorzugt ein tragbares Fensterputzgerät aus, das günstigerweise eine wiederaufladbare Batterie aufweist. Von Vorteil ist es, wenn die Batterie zusammen mit einer Steuer-, Schalt- und Ladeelektronik im Handgriff angeordnet sind.The hard surface cleaning device according to the invention preferably forms a portable window cleaning device which advantageously has a rechargeable battery. It is advantageous if the battery is arranged in the handle together with control, switching and charging electronics.

Bei einer vorteilhaften Ausführungsform sind die Steuer-, Schalt- und Ladeelektronik und die wiederaufladbare Batterie auf einer gemeinsamen Leiterplatte angeordnet.In an advantageous embodiment, the control, switching and charging electronics and the rechargeable battery are arranged on a common circuit board.

Die nachfolgende Beschreibung einer vorteilhaften Ausführungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1:
eine perspektivische Darstellung eines tragbaren Hartflächenreinigungsgeräts;
Figur 2:
eine Schnittansicht des Hartflächenreinigungsgeräts aus Figur 1;
Figur 3:
eine perspektivische Darstellung des Hartflächenreinigungsgeräts schräg von oben, wobei dessen Schmutzflüssigkeitstank vom Gehäuse getrennt ist;
Figur 4:
eine perspektivische Darstellung des Hartflächenreinigungsgeräts schräg von unten, wobei der Schmutzflüssigkeitstanks vom Gehäuse getrennt ist;
Figur 5:
eine perspektivische Teildarstellung einer Gehäuseschale des Hartflächenreinigungsgeräts im Bereich eines zweiten Tankaufnahmefachs;
Figur 6:
eine Teilschnittdarstellung des mit dem Gehäuse verbundenen Schmutzflüssigkeitstanks im Bereich einer Federzunge einer Bodenwand des zweiten Tankaufnahmefachs.
The following description of an advantageous embodiment of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Figure 1:
a perspective view of a portable hard surface cleaning device;
Figure 2:
a sectional view of the hard surface cleaning device Figure 1 ;
Figure 3:
a perspective view of the hard surface cleaning device obliquely from above, wherein the dirty liquid tank is separated from the housing;
Figure 4:
a perspective view of the hard surface cleaning device obliquely from below, wherein the dirty liquid tank is separated from the housing;
Figure 5:
a partial perspective view of a housing shell of the hard surface cleaning device in the region of a second tank receiving compartment;
Figure 6:
a partial sectional view of the dirty liquid tank connected to the housing in the region of a spring tongue of a bottom wall of the second tank receiving compartment.

In der Zeichnung ist schematisch eine vorteilhafte Ausführungsform eines erfindungsgemäßen tragbaren Hartflächenreinigungsgeräts dargestellt, das insgesamt mit dem Bezugszeichen 10 belegt ist. Mit Hilfe des tragbaren Hartflächenreinigungsgeräts 10 kann Flüssigkeit von einer Hartfläche, insbesondere von einer Fensterscheibe, abgezogen und aufgesaugt werden. Auch Spiegelflächen oder geflieste Wände können mittels des tragbaren Hartflächenreinigungsgeräts 10 gereinigt werden.The drawing schematically shows an advantageous embodiment of a portable hard surface cleaning device according to the invention, which is denoted overall by reference number 10. With the help of the portable hard surface cleaning device 10, liquid can be drawn off and sucked up from a hard surface, in particular from a window pane. Mirror surfaces or tiled walls can also be cleaned using the portable hard surface cleaning device 10.

Das Hartflächenreinigungsgerät 10 kann vom Benutzer nach Art eines manuellen Fensterabziehers an der Hartfläche entlangbewegt werden. Das Hartflächenreinigungsgerät 10 bildet ein tragbares Fensterputzgerät aus.The hard surface cleaning device 10 can be moved along the hard surface by the user in the manner of a manual window puller. The hard surface cleaning device 10 forms a portable window cleaning device.

Das Hartflächenreinigungsgerät 10 umfasst ein Gehäuse 12, das von einer ersten Gehäusehalbschale 14 und einer zweiten Gehäusehalbschale 16 gebildet wird. Außerdem weist das tragbare Hartflächenreinigungsgerät 10 eine Saugdüse 18 auf sowie einen Schmutzflüssigkeitstank 20, der mit dem Gehäuse 12 lösbar verbindbar ist.The hard surface cleaning device 10 comprises a housing 12, which is formed by a first housing half-shell 14 and a second housing half-shell 16. In addition, the portable hard surface cleaning device 10 has a suction nozzle 18 and a dirty liquid tank 20 which can be detachably connected to the housing 12.

Im Gehäuse 12 sind eine Saugturbine 22 und ein die Saugturbine 22 drehend antreibbarer Elektromotor 24 angeordnet. Im Bereich zwischen der Saugdüse 18 und der Saugturbine 22 bildet das Gehäuse 12 eine Abscheidekammer 26 aus, in der eine Abscheideeinrichtung 28 angeordnet ist. Die Abscheideeinrichtung 28 umfasst eine ebene Prallplatte 30 sowie eine gewölbte Prallwand 32. Die gewölbte Prallwand 32 überdeckt eine Turbineneinlassleitung 34, die in die Abscheidekammer 26 eintaucht und über die der Saugturbine 22 Saugluft zugeführt werden kann.A suction turbine 22 and an electric motor 24 which can be driven to rotate the suction turbine 22 are arranged in the housing 12. In the area between the suction nozzle 18 and the suction turbine 22, the housing 12 forms a separating chamber 26, in which a separating device 28 is arranged. The separating device 28 comprises a flat baffle plate 30 and a curved baffle wall 32. The curved baffle wall 32 covers a turbine inlet line 34 which dips into the separating chamber 26 and via which suction air can be fed to the suction turbine 22.

Die Saugdüse 18 weist einen Saugkanal 36 auf, der sich von einer Saugöffnung 38 der Saugdüse 18 bis zu einem Saugkanalauslass 40 erstreckt, an dem die Prallplatte 30 gehalten ist, wobei die Prallplatte 30 einen Abstand zum Saugkanalauslass 40 einnimmt und in die Abscheidekammer 26 eintaucht. An der Saugöffnung 38 sind eine erste flexible Abziehlippe 42 und eine zweite flexible Abziehlippe 44 gehalten.The suction nozzle 18 has a suction channel 36, which extends from a suction opening 38 of the suction nozzle 18 to a suction channel outlet 40, on which the baffle plate 30 is held, the baffle plate 30 being at a distance from the suction channel outlet 40 and being immersed in the separation chamber 26. A first flexible pull-off lip 42 and a second flexible pull-off lip 44 are held at the suction opening 38.

Auf der der Turbineneinlassleitung 34 abgewandten Seite bildet das Gehäuse 12 einen Saugkanalaufnahmeschacht 46 aus, in die ein Saugkanalendabschnitt 48 der Saugdüse 18 eingesetzt werden kann. Der Saugkanalendabschnitt 48 bildet den Saugkanalauslass 40 aus und trägt an seinem den flexiblen Abziehlippen 42, 44 abgewandten Ende die Prallplatte 30.On the side facing away from the turbine inlet line 34, the housing 12 forms a suction channel receiving shaft 46, into which a suction channel end section 48 of the suction nozzle 18 can be inserted. The suction channel end section 48 forms the suction channel outlet 40 and carries the baffle plate 30 at its end facing away from the flexible pulling lips 42, 44.

Die Saugturbine 22 ist in einem vom Gehäuse 12 gebildeten Turbinenraum 50 angeordnet, der mittels einer ersten Trennwand 52 von der Abscheidekammer 26 getrennt ist. Die erste Trennwand 52 wird von der Turbineneinlassleitung 34 durchgriffen, die in die Abscheidekammer 26 eintaucht. Im Bereich der Trennwand 52 ist die Turbineneinlassleitung 34 von einem Dichtring 54 umgeben, mit dessen Hilfe sichergestellt ist, dass Flüssigkeit aus der Abscheidekammer 26 nicht unbeabsichtigt entlang der Außenseite der Turbineneinlassleitung 34 zur Saugturbine 22 gelangen kann.The suction turbine 22 is arranged in a turbine space 50 formed by the housing 12, which is separated from the separation chamber 26 by means of a first partition 52. The first partition 52 is penetrated by the turbine inlet line 34, which dips into the separation chamber 26. In the region of the partition wall 52, the turbine inlet line 34 is surrounded by a sealing ring 54, with the aid of which it is ensured that liquid from the separation chamber 26 cannot inadvertently reach the suction turbine 22 along the outside of the turbine inlet line 34.

Auf der der ersten Trennwand 52 abgewandten Seite wird der Turbinenraum 50 von einer vom Gehäuse 12 ausgebildeten zweiten Trennwand 56 begrenzt. Die Saugturbine 22 ist zwischen der ersten Trennwand 52 und der zweiten Trennwand 56 angeordnet, und der Elektromotor 24 ist auf der der Saugturbine 22 abgewandten Seite der zweiten Trennwand 56 in einer Antriebskammer 58 des Gehäuses 12 angeordnet. Eine Motorwelle 60 des Elektromotors 24 durchgreift die zweite Trennwand 56 und ist mit der Saugturbine 22 drehfest verbunden.On the side facing away from the first partition 52, the turbine space 50 is delimited by a second partition 56 formed by the housing 12. The suction turbine 22 is arranged between the first partition 52 and the second partition 56, and the electric motor 24 is arranged on the side of the second partition 56 facing away from the suction turbine 22 in a drive chamber 58 of the housing 12. A motor shaft 60 of the electric motor 24 passes through the second partition 56 and is connected to the suction turbine 22 in a rotationally fixed manner.

Zusätzlich zum Elektromotor 24 sind in der Antriebskammer 58 eine wiederaufladbare Batterie 62 sowie eine Steuer-, Schalt- und Ladeelektronik 64 positioniert. Die Steuer-, Schalt- und Ladeelektronik 64 wirkt mit einem Betätigungselement 66 zusammen, das im dargestellten Ausführungsbeispiel als Druckschalter ausgebildet ist zum Ein- und Ausschalten des Elektromotors 24. Die Steuer-, Schalt- und Ladeelektronik steuert die Drehzahl des Elektromotors 24 sowie auch den Ladevorgang der Batterie 62. Die Steuer-, Schalt- und Ladeelektronik 64 ist zusammen mit der Batterie 62 auf einer gemeinsamen Leiterplatte 68 angeordnet, die in der Antriebskammer 58 positioniert ist.In addition to the electric motor 24, a rechargeable battery 62 and control, switching and charging electronics 64 are positioned in the drive chamber 58. The control, switching and charging electronics 64 cooperate with an actuating element 66, which in the exemplary embodiment shown as The pressure switch is designed to switch the electric motor 24 on and off. The control, switching and charging electronics control the speed of the electric motor 24 and also the charging process of the battery 62. The control, switching and charging electronics 64 are on together with the battery 62 a common circuit board 68 which is positioned in the drive chamber 58.

Das Gehäuse 12 bildet einen Handgriff 70 des tragbaren Hartflächenreinigungsgeräts 10 aus, der vom Benutzer mit der Hand umgriffen werden kann. Die Antriebskammer 58 ist im Handgriff 70 positioniert.The housing 12 forms a handle 70 of the portable hard surface cleaning device 10, which can be gripped by the user by hand. The drive chamber 58 is positioned in the handle 70.

Im Abstand zur Turbineneinlassleitung 34 weist die Abscheidekammer 26 einen Flüssigkeitsauslass 72 auf, der von einem Auslasstrichter 74 gebildet wird. Der Auslasstrichter 74 mündet in ein erstes Tankaufnahmefach 76, das vom Gehäuse 12 definiert wird und der Saugturbine 22 unmittelbar benachbart angeordnet ist. Mittels einer quer zur ersten Trennwand 52 und quer zur zweiten Trennwand 56 ausgebildeten dritten Trennwand 78 ist der Turbinenraum 50 vom ersten Tankaufnahmefach 76 getrennt.At a distance from the turbine inlet line 34, the separation chamber 26 has a liquid outlet 72, which is formed by an outlet funnel 74. The outlet funnel 74 opens into a first tank receiving compartment 76, which is defined by the housing 12 and is arranged directly adjacent to the suction turbine 22. The turbine chamber 50 is separated from the first tank receiving compartment 76 by means of a third partition wall 78 which is formed transversely to the first partition wall 52 and transversely to the second partition wall 56.

Wie aus Figur 4 deutlich wird, weist die dritte Trennwand 78 drei Abluftöffnungen 80, 82, 84 auf, die von der zweiten Gehäusehalbschale 16 gebildet werden, wohingegen die erste Gehäusehalbschale 14 keine derartigen Abluftöffnungen ausbildet. Über die Abluftöffnungen 80, 82, 84 kann die Abluft der Saugturbine 22 aus dem Turbinenraum 50 in das erste Tankaufnahmefach 76 einströmen.How from Figure 4 becomes clear, the third partition 78 has three exhaust openings 80, 82, 84 which are formed by the second housing half-shell 16, whereas the first housing half-shell 14 does not form any such exhaust openings. Via the exhaust air openings 80, 82, 84, the exhaust air of the suction turbine 22 can flow from the turbine space 50 into the first tank receiving compartment 76.

An dem der Saugturbine 22 abgewandten freien Ende des Handgriffs 70 bildet das Gehäuse 12 ein zweites Tankaufnahmefach 86 aus. Das zweite Tankaufnahmefach 86 weist eine Bodenwand 88, eine Deckenwand 90 sowie die Bodenwand 88 mit der Deckenwand 90 einstückig verbindende erste und zweite Seitenwände auf. Die erste Seitenwand 92 wird von der ersten Gehäusehalbschale 14 gebildet, und die zweite Seitenwand 94 wird von der zweiten Gehäusehalbschale 16 gebildet. Außerdem weist das zweite Tankaufnahmefach 86 eine Endwand 96 auf, die das zweite Tankaufnahmefach 86 in Richtung auf den Handgriff 70 begrenzt.At the free end of the handle 70 facing away from the suction turbine 22, the housing 12 forms a second tank receiving compartment 86. The second tank storage compartment 86 has a bottom wall 88, a top wall 90 and first and second side walls which connect the bottom wall 88 to the top wall 90 in one piece. The first side wall 92 is formed by the first housing half-shell 14, and the second side wall 94 is formed by the second housing half-shell 16. In addition, the second tank compartment has 86 has an end wall 96 which delimits the second tank storage compartment 86 in the direction of the handle 70.

Der Schmutzflüssigkeitstank 20 weist einen ersten Tankbereich 98 auf, der in das erste Tankaufnahmefach 76 eingesetzt werden kann, sowie einen zweiten Tankbereich 100, der in das zweite Tankaufnahmefach 86 eingesetzt werden kann. Der erste Tankbereich 98 weist einen Einfüllstutzen 102 auf, der an seinem freien Ende eine Tanköffnung 104 definiert, über die der Schmutzflüssigkeitstank 20 mit Flüssigkeit befüllt werden kann, die in der Abscheidekammer 26 von dem eingesaugten Flüssigkeits-Luftgemisch abgeschieden wird. Der Einfüllstutzen 102 nimmt eine Befüllungseinrichtung 106 auf, die in den Schmutzflüssigkeitstank 20 eintaucht und ein Einfüllrohr 108 und ein Entlüftungsrohr 110 umfasst. Das Entlüftungsrohr 110 verläuft parallel zum Einfüllrohr 108, wobei es mit seinem dem Schmutzflüssigkeitstank 20 abgewandten Ende über das Einfüllrohr 108 übersteht und in den Auslasstrichter 74 eintaucht.The dirty liquid tank 20 has a first tank area 98, which can be inserted into the first tank receiving compartment 76, and a second tank area 100, which can be inserted into the second tank receiving compartment 86. The first tank area 98 has a filler neck 102 which defines at its free end a tank opening 104 through which the dirty liquid tank 20 can be filled with liquid which is separated from the sucked-in liquid-air mixture in the separation chamber 26. The filler neck 102 receives a filling device 106, which dips into the dirty liquid tank 20 and comprises a filler pipe 108 and a ventilation pipe 110. The vent pipe 110 runs parallel to the filler pipe 108, with its end facing away from the dirty liquid tank 20 projecting beyond the filler pipe 108 and immersed in the outlet funnel 74.

Die Befüllungseinrichtung 106 weist eine Einfüllwanne 112 auf, die auf die Tanköffnung 104 des Einfüllstutzens 102 aufgesetzt werden kann und den Auslasstrichter 74 unter Zwischenlage eines Dichtelements 114 in Umfangsrichtung flüssigkeitsdicht umgibt. Das Einfüllrohr 108 schließt sich auf der dem Auslasstrichter 74 abgewandten Seite an die Einfüllwanne 112 an.The filling device 106 has a filling trough 112, which can be placed on the tank opening 104 of the filler neck 102 and surrounds the outlet funnel 74 in the circumferential direction in a liquid-tight manner with the interposition of a sealing element 114. The filler pipe 108 connects to the filler pan 112 on the side facing away from the outlet funnel 74.

Innerhalb des ersten Tankaufnahmefachs 76 ist der erste Tankbereich 98 von einem Ringraum 116 umgeben, dem die Abluft der Saugturbine 22 über die Abluftöffnungen 80, 82, 84 zugeführt werden kann und aus dem die Abluft über eine Luftauslassöffnung 118 an die Umgebung entweichen kann. Die Luftauslassöffnung 118 ist auf der dem Handgriff 70 abgewandten Seite des ersten Tankaufnahmefachs 76 angeordnet und wird einerseits vom ersten Tankbereich 98 und andererseits von einer Stirnwand 120 des Gehäuses 12 begrenzt. An die Luftauslassöffnung 118 schließt sich eine Vertiefung 122 des Schmutzflüssigkeitstanks 20 an, die in eine dem Handgriff 70 abgewandte Stirnwand 124 des Schmutzflüssigkeitstanks 20 eingeformt ist. Dies wird insbesondere aus den Figuren 2 und 4 deutlich.Within the first tank receiving compartment 76, the first tank area 98 is surrounded by an annular space 116, to which the exhaust air from the suction turbine 22 can be supplied via the exhaust air openings 80, 82, 84 and from which the exhaust air can escape to the surroundings via an air outlet opening 118. The air outlet opening 118 is arranged on the side of the first tank receiving compartment 76 facing away from the handle 70 and is delimited on the one hand by the first tank area 98 and on the other hand by an end wall 120 of the housing 12. A recess 122 of the dirty liquid tank 20 adjoins the air outlet opening 118, which recess faces away from the handle 70 End wall 124 of the dirty liquid tank 20 is molded. This is particularly evident from the Figures 2 and 4th clear.

Der zweite Tankbereich 100 ist als rückseitige Tankerweiterung 126 ausgestaltet, die in das zweite Tankaufnahmefach 86 eintaucht und an ihrer der Deckenwand 90 des zweiten Tankaufnahmefachs 86 zugewandten Oberseite eine Stufe 128 aufweist, die eine Anschlagfläche 130 ausbildet. Die Anschlagfläche 130 liegt an einem Anschlagbund 132 des zweiten Tankaufnahmefachs 86 an. Der Anschlagbund 132 wird von einem Rand der Deckenwand 90 gebildet.The second tank area 100 is designed as a tank extension 126 on the rear, which dips into the second tank storage compartment 86 and has a step 128 on its upper side facing the ceiling wall 90 of the second tank storage compartment 86, which step forms an abutment surface 130. The stop surface 130 bears against a stop collar 132 of the second tank receiving compartment 86. The stop collar 132 is formed by an edge of the ceiling wall 90.

Die Bodenwand 88 des zweiten Tankaufnahmefachs 86 weist einen von der ersten Gehäusehalbschale 14 gebildeten ersten Bodenwandabschnitt 134 und einen von der zweiten Gehäusehalbschale 16 gebildeten zweiten Bodenwandabschnitt 136 auf. Zwischen dem ersten Bodenwandabschnitt 134 und dem zweiten Bodenwandabschnitt 136 erstreckt sich eine Ausnehmung 138 der Bodenwand 88. Dies wird insbesondere aus Figur 4 deutlich.The bottom wall 88 of the second tank receiving compartment 86 has a first bottom wall section 134 formed by the first housing half-shell 14 and a second bottom wall section 136 formed by the second housing half-shell 16. A recess 138 in the bottom wall 88 extends between the first bottom wall section 134 and the second bottom wall section 136 Figure 4 clear.

Der erste Bodenwandabschnitt 134 bildet eine erste Federzunge 140 aus, die mit Ausnahme ihres der Endwand 96 zugewandten Endbereichs 142 von einem ersten Durchgangsschlitz 144 umgeben ist, so dass die erste Federzunge 140 relativ zum restlichen Bereich des ersten Bodenwandabschnitts 134 elastisch verformt werden kann. An ihrem der Endwand 96 abgewandten freien Ende trägt die erste Federzunge 140 einen ersten Rastvorsprung 146.The first bottom wall section 134 forms a first spring tongue 140 which, with the exception of its end region 142 facing the end wall 96, is surrounded by a first through slot 144, so that the first spring tongue 140 can be elastically deformed relative to the remaining area of the first bottom wall section 134. On its free end facing away from the end wall 96, the first spring tongue 140 carries a first latching projection 146.

Der zweite Bodenwandabschnitt 136 bildet eine zweite Federzunge 148 aus, die mit Ausnahme ihres der Endwand 96 zugewandten Endbereichs 150 von einem zweiten Durchgangsschlitz 152 umgeben ist, so dass die zweite Federzunge 148 relativ zum restlichen Bereich des zweiten Bodenwandabschnitts 136 elastisch verformt werden kann. An ihrem der Endwand 96 abgewandten freien Ende trägt die zweite Federzunge 148 einen zweiten Rastvorsprung, der in der Zeichnung nicht dargestellt und identisch wie der erste Rastvorsprung 146 ausgebildet ist.The second bottom wall section 136 forms a second spring tongue 148 which, with the exception of its end region 150 facing the end wall 96, is surrounded by a second through slot 152, so that the second spring tongue 148 can be elastically deformed relative to the remaining region of the second bottom wall section 136. At its free end facing away from the end wall 96, the second spring tongue 148 carries a second latching projection, which is not shown in the drawing and is identical to the first latching projection 146.

Der zweite Tankbereich 100 weist auf seiner Unterseite dem ersten Bodenwandabschnitt 134 zugewandt eine erste Tankeinformung 154 auf, und dem zweiten Bodenwandabschnitt 136 zugewandt weist der zweite Tankbereich 100 eine zweite Tankeinformung 156 auf. Wird der zweite Tankbereich 100 in das zweite Tankaufnahmefach 86 eingesetzt, so gleitet die erste Tankeinformung 154 am ersten Bodenwandabschnitt 134 entlang und die zweite Tankeinformung 156 gleitet am zweiten Bodenwandabschnitt 136 entlang. In der ersten Tankeinformung 154 ist eine erste Rastvertiefung 158 angeordnet, die mit dem ersten Rastvorsprung 146 der ersten Federzunge 140 zusammenwirkt, und in der zweiten Tankeinformung 156 ist eine zweite Rastvertiefung 160 angeordnet, die mit dem am freien der zweiten Federzunge 148 angeordneten zweiten Rastvorsprung zusammenwirkt. Mittels der Rastvertiefungen und Rastvorsprünge kann der zweite Tankbereich 100 mit dem zweiten Tankaufnahmefach 86 lösbar verrastet werden.The second tank area 100 has on its underside facing the first bottom wall section 134 a first tank recess 154, and facing the second bottom wall section 136 the second tank section 100 has a second tank recess 156. If the second tank area 100 is inserted into the second tank receiving compartment 86, the first tank molding 154 slides along the first bottom wall section 134 and the second tank molding 156 slides along the second bottom wall section 136. A first latching recess 158 is arranged in the first tank recess 154, which cooperates with the first latching projection 146 of the first spring tongue 140, and a second latching recess 160 is arranged in the second tank recess 156, which cooperates with the second latching projection arranged on the free of the second spring tongue 148 . The second tank area 100 can be releasably latched to the second tank receiving compartment 86 by means of the latching depressions and latching projections.

Mittels der beiden Federzungen 140, 148 wird der zweite Tankbereich 100 mit einer Federkraft in Richtung auf die Deckenwand 90 beaufschlagt, unter deren Wirkung die Anschlagfläche 130 gegen den Anschlagbund 132 gedrückt wird. Der zweite Tankbereich 100 wird dadurch zuverlässig im zweiten Tankaufnahmefach 86 gehalten und kann vom Benutzer bei Bedarf ohne Weiteres dem zweiten Tankaufnahmefach 86 entnommen werden.By means of the two spring tongues 140, 148, the second tank area 100 is subjected to a spring force in the direction of the ceiling wall 90, under the action of which the stop surface 130 is pressed against the stop collar 132. The second tank area 100 is thereby reliably held in the second tank holding compartment 86 and can be easily removed from the second tank holding compartment 86 by the user if required.

Zum Reinigen einer Hartfläche kann das tragbare Hartflächenreinigungsgerät 10 nach Art eines manuellen Fensterabziehers an der zu reinigenden Hartfläche entlangbewegt werden, wobei sich auf der Hartfläche befindliche Flüssigkeit an der Saugöffnung 38 sammelt. Unter der Wirkung der von der Saugturbine 22 erzeugten Saugströmung kann die Flüssigkeit zusammen mit Saugluft von der Hartfläche aufgesaugt werden. Das Gemisch aus Flüssigkeit und Saugluft durchströmt den Saugkanal 36. Innerhalb der Abscheidekammer 26 kann die Flüssigkeit von der eingesaugten Luft abgeschieden werden. Die Saugluft kann anschließend über die Turbineneinlassleitung 34 aus der Abscheidekammer 26 abgesaugt und von der Saugturbine 22 über die Abluftöffnungen 80, 82, 84 und den Ringraum 116 an die Umgebung abgegeben werden. Die Strömungsrichtung der Abluft weist beim Einströmen in den Ringraum 116 eine tangentiale Richtungskomponente bezogen auf die Mittelachse 162 des Ringraums 116 auf, die durch die Mittelachse des Auslasstrichters 74 und des fluchtend zum Auslasstrichter 74 ausgerichteten Einfüllstutzens 102 definiert wird. Beim Ausströmen aus dem Ringraum 116 weist die Abluft eine axiale Richtungskomponente bezogen auf die Mittelachse 162 auf und strömt außerhalb des Schmutzflüssigkeitstanks 20 im Bereich der Vertiefung 122 an dessen Stirnwand 124 entlang, ohne dass dadurch der Benutzer beeinträchtigt wird.To clean a hard surface, the portable hard surface cleaning device 10 can be moved along the hard surface to be cleaned in the manner of a manual window puller, with liquid located on the hard surface collecting at the suction opening 38. Under the action of the suction flow generated by the suction turbine 22, the liquid can be sucked up together with suction air from the hard surface. The mixture of liquid and suction air flows through the suction channel 36. The liquid can be separated from the sucked-in air within the separation chamber 26. The suction air can then be sucked out of the separation chamber 26 via the turbine inlet line 34 and from the suction turbine 22 via the exhaust air openings 80, 82, 84 and the annular space 116 are released to the environment. The flow direction of the exhaust air has a tangential directional component with respect to the central axis 162 of the annular space 116 when it flows into the annular space 116, which is defined by the central axis of the outlet funnel 74 and the filler neck 102 aligned with the outlet funnel 74. When flowing out of the annular space 116, the exhaust air has an axial directional component with respect to the central axis 162 and flows outside the dirty liquid tank 20 in the region of the depression 122 along its end wall 124 without the user being affected thereby.

Die innerhalb der Abscheidekammer 26 abgeschiedene Flüssigkeit kann über den Auslasstrichter 74, die Einfüllwanne 112 und das Einfüllrohr 108 in den Schmutzflüssigkeitstank 20 gelangen.The liquid separated within the separating chamber 26 can reach the dirty liquid tank 20 via the outlet funnel 74, the filling trough 112 and the filling pipe 108.

Zum Entleeren kann der Schmutzflüssigkeitstank 20 vom Gehäuse 12 getrennt werden. Hierzu kann der Benutzer den Schmutzflüssigkeitstank 20 mit der Hand umgreifen und zunächst den zweiten Tankbereich 100 dem zweiten Tankaufnahmefach 86 und anschließend den ersten Tankbereich 98 dem ersten Tankaufnahmefach 76 entnehmen. Anschließend kann der Benutzer die Befüllungseinrichtung 106 vom Schmutzflüssigkeitstank 20 trennen und diesen entleeren. Nach erfolgter Entleerung kann der Benutzer die Befüllungseinrichtung 106 wieder mit dem Schmutzflüssigkeitstank 20 verbinden und diesen anschließend wieder am Gehäuse 12 festlegen, wobei er zunächst den ersten Tankbereich 98 in das erste Tankaufnahmefach 76 und anschließend den zweiten Tankbereich 100 in das zweite Tankaufnahmefach 86 einsetzt. Die Einfüllwanne 112 der Befüllungseinrichtung 106 nimmt hierbei eine Position am Auslasstrichter 74 ein, wobei mittels des Dichtelements 114 eine flüssigkeitsdichte Verbindung zwischen dem Auslasstrichter 74 und der Einfüllwanne 112 sichergestellt wird. Durch die Bereitstellung der Rastverbindung zwischen dem zweiten Tankbereich 100 und dem zweiten Tankaufnahmefach 86 und der Anlage der Anschlagfläche 130 am Anschlagbund 132 ist sichergestellt, dass der Schmutzflüssigkeitstank 20 zuverlässig am Gehäuse gehalten ist.The dirty liquid tank 20 can be separated from the housing 12 for emptying. For this purpose, the user can grasp the dirty liquid tank 20 by hand and first remove the second tank area 100 from the second tank storage compartment 86 and then the first tank area 98 from the first tank storage compartment 76. The user can then separate the filling device 106 from the dirty liquid tank 20 and empty it. After emptying, the user can reconnect the filling device 106 to the dirty liquid tank 20 and then fix it again to the housing 12, first inserting the first tank area 98 into the first tank receiving compartment 76 and then inserting the second tank area 100 into the second tank receiving compartment 86. The filling trough 112 of the filling device 106 assumes a position on the outlet funnel 74, with the sealing element 114 ensuring a liquid-tight connection between the outlet funnel 74 and the filling trough 112. The provision of the latching connection between the second tank area 100 and the second tank receiving compartment 86 and the abutment of the stop surface 130 on the stop collar 132 ensures that the dirty liquid tank 20 is reliably held on the housing.

Um das Umgreifen des Handgriffs 70 beim Reinigen einer Hartfläche und das Umgreifen des Schmutzflüssigkeitstanks 20 zum Entnehmen des Schmutzflüssigkeitstanks 20 zu erleichtern, weist das tragbare Hartflächenreinigungsgerät 10 zwischen dem Handgriff 70 und dem Schmutzflüssigkeitstank 20 eine Greiföffnung 164 auf, die der Benutzer mit seinen Fingern durchgreifen kann. Dies erleichtert die Handhabung des Hartflächenreinigungsgeräts 10.In order to facilitate the gripping of the handle 70 when cleaning a hard surface and the gripping of the dirty liquid tank 20 for removing the dirty liquid tank 20, the portable hard surface cleaning device 10 has a gripping opening 164 between the handle 70 and the dirty liquid tank 20, which the user can grip through with his fingers . This facilitates the handling of the hard surface cleaning device 10.

Claims (18)

  1. A portable hard surface cleaning device for drawing off and suctioning off a liquid from a hard surface, in particular a window pane, having a handgrip (70) and a suction turbine (22), which related to an upright position of the hard surface cleaning device (10) is arranged above the handgrip (70) in a housing, and having a suction nozzle (18), in a flow connection with the suction turbine (22), for sucking up a liquid-air mixture from the hard surface, and having a dirty-liquid tank (20), detachably connectable to the housing (12), wherein liquid can be separated from the sucked-up liquid-air mixture and deposited in the dirty-liquid tank, and wherein the dirty-liquid tank has a first tank region (90), with a tank opening (104), insertable into a first tank receiving compartment (76) which is arranged laterally alongside the suction turbine (22) in a manner offset with respect to the handgrip (70), of the housing (12), characterized in that the suction turbine (22) is in a flow connection with the first tank receiving compartment (76) via at least one outgoing air opening (80, 82, 84) and outgoing air can be given off to the surroundings via the at least one outgoing air opening (80, 82, 84) and the first tank receiving compartment (76).
  2. A portable hard surface cleaning device according to claim 1, characterized in that a separating device (28) for separating the liquid from the sucked-up liquid-air mixture is arranged in the suction nozzle (18), in the housing (12), in the region of the suction turbine (22) and/or in the dirty-liquid tank (20).
  3. A portable hard surface cleaning device according to claim 2, characterized in that the separating device (28) is arranged in the flow path between a suction opening of the suction nozzle (18) and the at least one outgoing air opening (80, 82, 84).
  4. A portable hard surface cleaning device according to claim 3, characterized in that the separating device (28) is arranged in the flow path between the suction nozzle (18) and the suction turbine (22).
  5. A portable hard surface cleaning device according to any one of the preceding claims, characterized in that the outgoing air can be given off to the surroundings at that side of the first tank receiving compartment (76) remote from the handgrip (70).
  6. A portable hard surface cleaning device according to any one of the preceding claims, characterized in that within the first tank receiving compartment (76), the first tank region (98) is surrounded by an annular space (116) into which the at least one outgoing air opening (80, 82, 84) discharges and from which the outgoing air can be given off to the surroundings via at least one air outlet opening (118).
  7. A portable hard surface cleaning device according to claim 6, characterized in that the at least one air outlet opening (118) is arranged between an end wall of the housing (120) and a tank wall (124) of the dirty-liquid tank (20).
  8. A portable hard surface cleaning device according to claim 7, characterized in that at its side remote from the handgrip (70), the dirty-liquid tank (20) has a recess (122) which adjoins the at least one air outlet opening (118).
  9. A portable hard surface cleaning device according to any one of claims 6 to 8, characterized in that the flow direction of the outgoing air flowing into the annular space (116) via the at least one outgoing air opening (80, 82, 84) has a tangential directional component.
  10. A portable hard surface cleaning device according to any one of claims 6 to 9, characterized in that the flow direction of the outgoing air flowing out from the annular space (116) via the at least one air outlet opening (118) has an axial directional component.
  11. A portable hard surface cleaning device according to any one of the preceding claims, characterized in that the first tank region (98) has a filler neck (102).
  12. A portable hard surface cleaning device according to any one of the preceding claims, characterized in that the dirty-liquid tank (20) has a second tank region (100), arranged at a distance from the first tank region (98), which can be positioned at an end region, remote from the suction turbine (22), of the handgrip (70).
  13. A portable hard surface cleaning device according to claim 12, characterized in that at the end region, remote from the suction turbine (22), of the handgrip (70), the housing (12) forms a second tank receiving compartment (86) into which the second tank region (100) can be inserted.
  14. A portable hard surface cleaning device according to claim 13, characterized in that the second tank region (100) forms a tank widening (126) facing the handgrip (70).
  15. A portable hard surface cleaning device according to claim 13 or 14, characterized in that the second tank region (100) is releasably latchable to the second tank receiving compartment (86).
  16. A portable hard surface cleaning device according to claim 15, characterized in that the second tank receiving compartment (86) has a base wall (88) with at least one latching element which cooperates with a complementary latching element of the second tank region (100).
  17. A portable hard surface cleaning device according to any one of claims 13 to 16, characterized in that at least one wall portion (134, 136) of the second tank receiving compartment (85) and/or the second tank region (100) is elastically deformable.
  18. A portable hard surface cleaning device according to any one of claims 13 to 17, characterized in that the second tank region (100) has a stop surface (130) which can be pressed against a stop collar (132) of the second tank receiving compartment (86) under the effect of a spring force.
EP15816186.9A 2015-12-21 2015-12-21 Portable hard surface cleaning device Active EP3393322B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15816186T PL3393322T3 (en) 2015-12-21 2015-12-21 Portable hard surface cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/080889 WO2017108090A1 (en) 2015-12-21 2015-12-21 Portable hard surface cleaning device

Publications (2)

Publication Number Publication Date
EP3393322A1 EP3393322A1 (en) 2018-10-31
EP3393322B1 true EP3393322B1 (en) 2020-04-08

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EP (1) EP3393322B1 (en)
CN (1) CN108135410B (en)
PL (1) PL3393322T3 (en)
WO (1) WO2017108090A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017121208A1 (en) 2017-09-13 2019-03-14 Alfred Kärcher SE & Co. KG Surface cleaning device
WO2019161932A1 (en) * 2018-02-26 2019-08-29 Alfred Kärcher SE & Co. KG Portable hard-surface cleaning appliance

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CN1100674A (en) * 1993-09-23 1995-03-29 W·勒努 Process for cleaning glass wing or like vertical and/or plan smoth surface
US5652996A (en) * 1995-12-01 1997-08-05 The Hoover Company Hand held cleaner with swiveling nozzle
HK1048728A2 (en) * 2002-02-26 2003-03-28 Hong Kong And China Gas Compan Dust suction device for handheld power tool
CN100423678C (en) * 2005-11-10 2008-10-08 苏州金莱克家用电器有限公司 Noise absorption unit of dust collector
CN100405965C (en) * 2005-12-23 2008-07-30 苏州金莱克家用电器有限公司 Diffusion type dust collection unit of dust cleaner
DE102008004965B3 (en) * 2008-01-11 2009-05-14 Alfred Kärcher Gmbh & Co. Kg Portable hard surface suction device
CN201234951Y (en) * 2008-04-30 2009-05-13 华中农业大学 Multifunctional machine for cleaning and wiping electric door windowpane
GB2468299B (en) * 2009-03-03 2012-06-20 Dyson Technology Ltd Noise reduction arrangement for a cleaning appliance.
WO2013143616A1 (en) * 2012-03-30 2013-10-03 Alfred Kärcher Gmbh & Co. Kg Hard-surface suction implement
PL3021727T3 (en) * 2013-07-18 2020-08-24 Alfred Kärcher SE & Co. KG Portable hard-surface-cleaning appliance
CN203873703U (en) * 2014-03-21 2014-10-15 张仙驰 Electric liquid spraying and wiping cleaner

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Publication number Publication date
CN108135410B (en) 2020-11-27
PL3393322T3 (en) 2020-08-24
WO2017108090A1 (en) 2017-06-29
CN108135410A (en) 2018-06-08
EP3393322A1 (en) 2018-10-31

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