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EP3393320B1 - Buse d'aspiration pour appareil de nettoyage de surface dure et appareil de nettoyage de surface dure équipé d'une telle buse - Google Patents

Buse d'aspiration pour appareil de nettoyage de surface dure et appareil de nettoyage de surface dure équipé d'une telle buse Download PDF

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Publication number
EP3393320B1
EP3393320B1 EP15816786.6A EP15816786A EP3393320B1 EP 3393320 B1 EP3393320 B1 EP 3393320B1 EP 15816786 A EP15816786 A EP 15816786A EP 3393320 B1 EP3393320 B1 EP 3393320B1
Authority
EP
European Patent Office
Prior art keywords
suction
suction nozzle
accordance
housing half
lip
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
EP15816786.6A
Other languages
German (de)
English (en)
Other versions
EP3393320A1 (fr
Inventor
Eugenio Venturini
Paolo Reggiani
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 PL15816786T priority Critical patent/PL3393320T3/pl
Publication of EP3393320A1 publication Critical patent/EP3393320A1/fr
Application granted granted Critical
Publication of EP3393320B1 publication Critical patent/EP3393320B1/fr
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
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices
    • A47L1/05—Hand apparatus with built-in electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees

Definitions

  • the invention relates to a suction nozzle for a portable hard surface cleaning device for removing and sucking up liquid from a hard surface, in particular from a window pane, comprising a suction nozzle housing with a first and a second housing half-shell, which form a suction channel between them, the suction channel extending from a suction opening, on which an exchangeable pull-off lip is held, extends to a suction channel end section to which a vacuum source can be connected to form a suction flow, and wherein the two housing half-shells each have at least one holding element adjacent to the suction opening and a holding section of the exchangeable pull-off lip between the holding elements of the two housing half-shells is arranged to hold the replaceable pull-off lip on the suction opening, the holding elements each forming an engagement with the holding section.
  • the invention also relates to a portable hard surface cleaning device with such a suction nozzle.
  • a portable hard surface cleaning device is known with the aid of which a hard surface, in particular a window pane, can be cleaned.
  • the portable hard surface cleaning device has a suction nozzle with a squeegee that can be moved along the hard surface in the manner of a manual window squeegee so that liquid can be drawn off the hard surface.
  • the liquid collects at a suction opening of the suction nozzle and can be sucked up from the suction opening via a suction channel and transferred to a dirty liquid tank.
  • the portable hard surface cleaning device has a suction unit for this purpose is in flow connection with the suction channel. By means of the suction unit, a suction flow can be generated in the area of the suction opening, under the effect of which a mixture of liquid and air is sucked in via the suction opening.
  • a suction nozzle is known with two housing half-shells, which form a suction channel between them, which extends from the suction opening to a suction channel end section to which a vacuum source can be connected.
  • a replaceable pull-off lip is attached to the suction opening.
  • a suction nozzle with the features of the preamble of claim 1 is from WO 2015/161876 A1 known.
  • the object of the present invention is to further develop a suction nozzle of the type mentioned at the outset in such a way that the replaceable pull-off lip is held more reliably on the suction opening.
  • the holding section of the replaceable stripping lip engages both with the at least one holding element of the first housing half-shell and with the at least one holding element of the second housing half-shell.
  • the replaceable pull-off lip is reliably held at the suction opening by the two housing half-shells that form the suction channel.
  • the two half-shells of the housing form the suction channel between them and no additional component is required to hold the pull-off lip.
  • the suction nozzle has, in addition to a replaceable pull-off lip, a non-replaceable pull-off lip, which is molded onto the first half-shell of the housing.
  • the non-replaceable pull-off lip can form a support for the replaceable pull-off lip.
  • the non-replaceable pull-off lip together with the first half-shell of the housing, forms an injection molded part with a hard component and an elastomer component.
  • the hard component can form the wall of the first half-shell of the housing and the elastomer component can form the non-replaceable pull-off lip, which, due to the elastomer material used, is flexible in the same way as the replaceable pull-off lip, namely flexible.
  • a polypropylene material or an ABS material (acrylonitrile butadiene styrene), for example, can be used as the hard component, in particular a polypropylene material reinforced with talc.
  • thermoplastic elastomer material for example, can be used as the elastomer component.
  • At least one holding element of the first housing half-shell is arranged in the area of the suction channel and forms a flow guide element.
  • the at least one holding element which is arranged in the area of the suction channel, can support and fix the exchangeable pull-off lip in the area of the suction channel and can at the same time serve to guide the suction flow.
  • the elastomer component forms the non-replaceable pull-off lip.
  • the at least one holding element which is arranged in the region of the suction channel, is at least partially surrounded by the elastomer component in the circumferential direction.
  • the retaining section of the replaceable pull-off lip is between the at least one retaining element of the first housing half-shell and the at least one retaining element of the second housing half-shell both in a first position of use of the replaceable pull-off lip and in a second position of use of the pull-off lip rotated by 180° about a central axis of the pull-off lip Housing half-shell can be positioned, the central axis of the replaceable pull-off lip being aligned parallel to the longitudinal axis of the suction channel. This gives the ability to rotate the blade and thereby increase the life of the blade. You can first assume a first position of use, in which it is moved along the hard surface to be cleaned.
  • the holding section In the first position of use of the pull-off lip, the holding section is positioned between the holding elements of the two housing half-shells and is in engagement with the holding elements of the two housing half-shells.
  • the exchangeable pull-off lip In the first position of use, the exchangeable pull-off lip can contact the hard surface with a first contact area. This area can be subject to wear and tear when cleaning the hard surface, so that once a maximum degree of wear has been reached, the cleaning effect that can be achieved is impaired.
  • the replaceable pull-off lip can be rotated through 180° about its central axis, which is aligned parallel to the longitudinal axis of the suction channel, in order to assume a second position of use.
  • the holding section assumes a position between the holding elements of the two housing half-shells and is in engagement with the holding elements of the two housing half-shells. Also in the second position of use the scraper lip can be moved along the hard surface to be cleaned, contacting the hard surface with a second contact region that has not been worn up to now.
  • the retaining elements arranged on the two half-shells of the housing ensure that the wiper lip is reliably held at the suction opening and that a very good cleaning effect can be achieved by means of the wiper lip in both usage positions.
  • the replaceable pull-off lip is designed symmetrically to its center plane, with the center plane being aligned parallel to the longitudinal axis of the suction channel.
  • the replaceable pull-off lip can be pulled out of the suction nozzle housing transversely to the longitudinal axis of the suction channel, then rotated by 180° around its central axis and then pulled back into the suction nozzle housing transversely to the longitudinal axis of the suction channel.
  • changing the usage position of the replaceable pull-off lip can be done without tools.
  • the user can grasp the front area of the extraction lip protruding from the suction nozzle housing and pull it out of the suction nozzle housing laterally, transversely to the longitudinal axis of the suction channel, and after turning the extraction lip back into the suction nozzle housing.
  • the holding elements of the two housing half-shells can form a guide for the holding section of the replaceable pull-off lip.
  • the two housing half-shells are preferably detachably connected to one another. It can be provided, for example, that the two half-shells of the housing can be screwed or releasably latched to one another.
  • the retaining elements of the housing half-shells form the interchangeable ones both in the first position of use and in the second position of use Pull-off lip from an engagement, preferably a form fit with the holding portion of the replaceable pull-off lip.
  • the holding section of the replaceable pull-off lip preferably has two depressions which are symmetrical with respect to the center plane of the pull-off lip and into which complementary projections of the holding elements of the first and second housing half-shells engage both in the first position of use and in the second position of use of the pull-off lip.
  • the holding section of the replaceable pull-off lip is designed as an extension designed symmetrically to the center plane of the replaceable pull-off lip, and the holding elements of the two housing half-shells have depressions into which the extension engages.
  • extension of the holding section is designed in the form of a straight bead and the holding elements of the two housing half-shells each have a depression into which the bead dips.
  • the bead can have a circular cross-sectional area, for example, and the holding sections of the two housing half-shells can each accommodate approximately half of the cross-section of the bead with their indentation.
  • the at least one holding element arranged in the region of the suction channel preferably forms a flow guide rib.
  • the flow guide rib can specify a direction of flow for the suction flow in the area of the suction opening, so that a mixture of liquid and suction air can flow into the suction channel in the specified direction. As a result, flow losses can be kept low, and this in turn has the advantage that the energy consumption of the vacuum source can be kept low.
  • a plurality of flow-guiding ribs spaced apart from one another are preferably arranged in the region of the suction channel.
  • the flow guide ribs are arranged in a fan shape.
  • the flow guide ribs can have an increasing inclination towards the longitudinal axis with increasing distance from the longitudinal axis.
  • the flow guide ribs are arranged at the same height in relation to the longitudinal axis of the suction channel.
  • the flow-guiding ribs each have a depression on their upper edge facing away from the first half-shell of the housing, into which the holding section of the replaceable pull-off lip dips.
  • the indentations are preferably arranged at a rear end area of the upper edge, and in a section in front of the indentations, the upper edges of the flow guide ribs preferably form a flat contact surface for the replaceable pull-off lip.
  • the bearing surface is inclined in the direction of a bottom wall of the suction channel.
  • the flow-guiding ribs have a wedge-shaped cross section. In a longitudinal section, they can have an increasing height to the bottom wall of the suction channel in the flow direction of the suction flow.
  • the replaceable pull-off lip is preferably seated on the flow-guiding ribs over at least half of its extent in relation to the direction of flow of the suction flow.
  • the first housing half-shell has at least one further holding element, which is arranged outside of the suction channel.
  • the first housing half-shell has two further holding elements which are arranged symmetrically to one another outside of the suction channel in relation to its longitudinal axis.
  • the two holding elements arranged outside of the suction channel can each extend, starting from a side wall of the suction channel, to an edge of the housing half-shell.
  • the second housing half-shell has a holding element which extends along the entire holding section of the replaceable pull-off lip and thus forms an engagement with the holding section along the entire holding section.
  • One of the two housing half-shells preferably has a latching element in the region of the suction channel end section, which forms an elastically deformable wall section of the suction channel and is encapsulated by an elastomer component. If the end section of the suction channel is connected to the vacuum source, the latching element of the housing half-shell can form a latching connection together with a latching element of the vacuum source designed in a complementary manner. This ensures that the suction nozzle does not unintentionally become detached from the vacuum source.
  • the locking element of the housing half-shell is arranged in the area of the suction channel end section and forms an elastically deformable wall section of the suction channel.
  • the locking element is encapsulated by an elastomer component.
  • the elastomer component thus forms a sealing element and ensures that the latching element can deform elastically to produce a latching connection.
  • the latching element advantageously forms a latching hook which has a spring tongue and a latching projection protruding outwards from the spring tongue.
  • the spring tongue forms an elastically deformable wall section of the suction channel and is encapsulated by the elastomer component.
  • the spring tongue is preferably designed in the manner of a leaf spring, which is connected in one piece to the wall of the housing half-shell at one end and carries the outwardly protruding latching projection at its other end. With the exception of its end, which is connected in one piece to the wall of the housing half-shell, the spring tongue is encapsulated by the elastomer component.
  • a housing half-shell of the suction nozzle to be an injection-molded part with a hard component and an elastomer component, with an elastically deformable wall section of the suction channel being designed by the hard component in the form of a spring tongue which, with the exception of an end region, is surrounded by a through-slot passing through the hard component is, wherein the passage slot of the hard component is covered by the elastomeric component molded onto the hard component.
  • the spring tongue is only connected in one piece to the hard component at one end, but is otherwise separated from the hard component by means of the through-slot. This gives the spring tongue elastic deformability.
  • the spring tongue is overmoulded with the elastomer component that seals the through-slot.
  • the elastomer component ensures that the spring tongues bend relative to the hard component of the housing half-shell can, whereby the elastomer component is also subject to bending stress, without the tightness of the suction channel being impaired as a result.
  • the invention not only relates to a suction nozzle of the type explained above, but also to a hard surface cleaning device for removing and sucking up a liquid from a hard surface with such a suction nozzle.
  • the portable hard surface cleaning device has a suction unit for forming a suction flow so that a mixture of liquid and suction air can be sucked off the hard surface to be cleaned.
  • the portable hard surface cleaning device according to the invention has a dirty liquid tank in which the liquid that has been sucked up can be deposited.
  • the portable hard surface cleaning device according to the invention has a separating device for separating the liquid from the sucked-up liquid-air mixture.
  • the separating device is preferably arranged in a separating chamber which is positioned in the flow path between the suction nozzle and the suction unit, and the separated liquid can be transferred from the separating chamber into the dirty liquid tank.
  • the separation chamber and the dirty liquid tank are thus advantageously structurally separate from one another.
  • the portable hard surface cleaning device preferably has a suction channel receiving shaft which can be plugged into the suction channel end section of the suction nozzle and which has a latching receptacle for receiving a latching projection of the suction nozzle.
  • the suction nozzle has a latching element which is arranged in the region of the end section of the suction channel and is preferably designed as an elastically deformable wall section of the suction channel.
  • the suction nozzle can advantageously be plugged into a suction channel receiving shaft of the hard surface cleaning device, and a snap-in receptacle is located within the suction channel receiving shaft arranged, which cooperates with the locking element of the suction nozzle to form a locking connection.
  • the hard surface cleaning device according to the invention preferably forms a portable window cleaning device.
  • a portable hard surface cleaning device according to the invention is shown schematically, which is assigned the reference numeral 10 in its entirety.
  • liquid from a hard surface in particular from a window pane, can be pulled off and vacuumed up.
  • 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 squeegee.
  • the hard surface cleaning device 10 forms a portable window cleaning device.
  • the hard surface cleaning device 10 comprises a base part 12 in which a suction unit 14 is arranged.
  • the suction unit 14 comprises an electric motor 16 which drives a suction turbine 18 in rotation. Air can be sucked in by the suction turbine 18 via a turbine inlet line 20 that is configured in a straight line in the exemplary embodiment shown.
  • the turbine inlet line 20 submerges into a separation chamber 22 .
  • a separating element in the form of a baffle is arranged in the separation chamber 22 at a distance from the turbine inlet line 20 , which covers an inlet opening 26 of the turbine inlet line 20 and is arched essentially convexly in the direction facing away from the turbine inlet line 20 .
  • the base part 12 On the side of the separation chamber 22 facing away from the turbine inlet line 20, the base part 12 forms a suction channel receiving shaft 28, which receives a suction channel end section 30 of an advantageous embodiment of a suction nozzle 32 according to the invention.
  • the suction nozzle 32 is shown schematically in the drawing and is explained in more detail below.
  • the suction turbine 18 is separated from the separation chamber 22 by means of a first partition 34 , with the turbine inlet line 20 reaching through the first partition 34 .
  • the turbine inlet line 20 is surrounded by a sealing ring 36, which ensures that liquid from the separation chamber 22 cannot unintentionally reach the suction turbine 18 along the outside of the turbine inlet line 20.
  • the base part 12 has a second partition wall 38 at a distance from the first partition wall 34 and aligned parallel thereto.
  • the suction turbine 18 is between the first partition wall 34 and the second partition wall 38 , and the electric motor 16 is arranged on the side of the second partition wall 38 facing away from the suction turbine 18 in a drive chamber 40 of the base part 12 .
  • a motor shaft 42 of the electric motor 16 passes through the second partition wall 38 and is connected to the suction turbine 18 in a torque-proof manner.
  • the suction turbine 18 can be rotated by means of the motor shaft 42 .
  • a rechargeable battery 44 and control, switching and charging electronics 46 are positioned in the drive chamber 40.
  • the control, switching and charging electronics 46 interacts with an actuating element 48, which is designed as a pressure switch in the illustrated embodiment for switching the electric motor 16 on and off Charging the battery 44.
  • the control, switching and charging electronics 46 and the battery 44 are arranged on a common printed circuit board 49.
  • the drive chamber 40 is arranged in a handle 50 of the base part 12 .
  • the handle 50 can be gripped by the user with one hand.
  • the handle 50 extends to a bottom wall 52 of the base part 12, with which the portable hard surface cleaning device 10 can be parked on a floor space.
  • the portable hard-surface cleaning device 10 has a dirty liquid tank 54, which is held on the base part 12 in a detachable manner without tools and into which a filling device 56 is immersed. Liquid can get from the separation chamber 22 into the dirty liquid tank 54 via the filling device 56 .
  • the filling device 56 has a filling pipe 58 and a ventilation pipe 60 which are connected to one another in one piece and dip into the dirty liquid tank 54 .
  • the dirty liquid tank 54 has an upper tank section 62 which faces the separation chamber 22 and which can be inserted into an upper recess 64 of the base part 12 via an upper opening 63, and a rear tank section 66 which can be inserted via a lower opening 67 into a lower recess 68 in the Base part 12 can be used.
  • the upper recess 64 is arranged laterally next to the suction turbine 18 and is in flow connection with the suction turbine 18 so that suction air can be discharged from the suction turbine 18 via the upper recess 64 and the upper opening 63 to the environment.
  • a filling funnel 70 opens into the upper recess 64 and is integrally connected to the first partition 34 . Liquid from the separation chamber 22 can reach a trough-shaped recess 72 of the filling device 56 via the filling funnel 70, to which the filling pipe 58 is connected.
  • the ventilation pipe 60 runs parallel to the filling pipe 58 , with its upper end facing away from the dirty liquid tank 54 projecting beyond the filling pipe 58 and immersing itself in the filling funnel 70 .
  • the lower recess 68 is arranged directly above the base wall 52, the base wall 52 having resiliently deformable base wall sections in the region of the lower recess 68 and thereby exerting a resilient holding force on the waste liquid tank 54 in the direction of a contact wall 74 arranged at a distance from the base wall 52 which the rear tank portion 66 rests with its top.
  • the rear tank section 66 can be latched to the lower recess 68 by means of latching elements designed in a complementary manner.
  • the dirty liquid tank 54 together with the handle 50, delimits a gripping opening 75 of the portable hard-surface cleaning device 10, through which the user can put his fingers when holding the portable hard-surface cleaning device 10.
  • the suction nozzle 32 is in the Figures 3 to 7 shown separately. It has a suction nozzle housing 77 with a first housing half-shell 76 and a second housing half-shell 78 which are detachably connected to one another. In the illustrated embodiment, the two housing half-shells 76, 78 are screwed together.
  • the two housing half-shells 76, 78 delimit a suction channel 80 between them.
  • the suction channel 80 extends between the two housing half-shells 76, 78 from a suction opening 82 to the suction channel end section 30.
  • the first housing half-shell 76 forms a bottom wall 84 of the suction channel 80 and first arcuately curved side walls 86, 88 of the suction channel 80.
  • the second housing half-shell 76 forms a top wall 90 of the suction channel 80 and second arcuately curved side walls of the suction channel 80 which can be placed flow-tight on the first side walls 86, 88.
  • the suction nozzle 32 has a replaceable squeegee lip 92 and a non-replaceable squeegee lip 94 in the area of the suction opening 82 .
  • the non-replaceable pull-off lip 94 is molded onto the first housing half-shell 76 and, together with the first housing half-shell 76, forms an injection-molded part with two components, namely a hard component, which forms the first housing half-shell 76, and an elastomer component, which forms the non-replaceable pull-off lip 94 trains.
  • the suction channel 80 has a centrally arranged longitudinal axis 102 and the replaceable pull-off lip 92 is designed symmetrically to its central plane 96, which is aligned parallel to the longitudinal axis 102, and has a holding section 98, which has a substantially circular cross-section Bead 100 is formed.
  • the bead 100 extends transversely to the longitudinal axis 102 of the suction channel 80 along the entire length of the replaceable pull-off lip 92 and forms its rear end area.
  • the front end area of the replaceable pull-off lip 92 is formed by a first pull-off edge 104 and a second pull-off edge 106 which run along an end face 108 of the replaceable pull-off lip 92 that faces away from the bead 100 .
  • the first housing half-shell 76 has a multiplicity of holding elements for fixing the replaceable pull-off lip 92 , a plurality of first holding elements being arranged in the area of the suction channel and each forming a flow guide rib 114 .
  • the flow guide ribs 114 are arranged in a fan shape, so that they have an increasing inclination to the longitudinal axis 102 with increasing distance from the longitudinal axis 102 of the suction channel 80 . All flow guide ribs 114 are arranged at the same height in relation to the longitudinal axis 102 .
  • the flow-guiding ribs 114 protrude vertically upwards from the bottom wall 84 and each have a depression 118 on their upper edge 116 facing away from the bottom wall 84, into which the bead 100 dips in a form-fitting manner.
  • the flow-guiding ribs 114 each have a flat support surface 119 for the replaceable pull-off lip 92 on their upper edge, directed obliquely to the bottom wall 84 .
  • the replaceable pull-off lip 92 is supported in the area of the suction channel 80 with the aid of the flow guide ribs 114 .
  • the shape of the flow guide ribs 114 is optimized in terms of flow technology, and they taper in their front end region facing the non-replaceable pull-off lip 94 .
  • the flow guide ribs 114 make it possible to guide a suction flow with very low flow losses, so that a mixture of liquid and suction air can flow through between the flow guide ribs 114 with only low flow losses.
  • the first housing half-shell 78 has two further holding elements for fixing the replaceable pull-off lip 92 in place.
  • additional holding elements are in the form of a holding channel 120 and a retaining groove 122 which extends outside the suction channel from a first side wall 86 or 88 of the suction channel 80 to an outer wall 124, 126 of the first half-shell 76 of the housing.
  • the second housing half-shell 78 has a holding element in the form of a holding channel 110 for fixing the replaceable pull-off lip 92 to the suction opening 82 .
  • the retaining channel 110 receives an upper edge area 112 of the bead 100 .
  • the two retaining grooves 120, 122, which are arranged outside the suction channel 80, and the flow guide ribs 114, which are arranged inside the suction channel 80 each accommodate a lower edge region 128 of the bead 100, so that the replaceable pull-off lip 92 between the both housing half-shells 76, 78 is fixed.
  • the portable hard surface cleaning device 10 can be moved along with the exchangeable wiper lip 92 along a hard surface to be cleaned.
  • the replaceable pull-off lip 92 can initially assume a first use position in which the first pull-off edge 104 faces the non-replaceable pull-off lip 94, as is shown, for example, in figure 7 is shown.
  • the first stripping edge 104 slides along the hard surface to be cleaned in this first position of use.
  • the first stripping edge 104 can be subject to wear. When a maximum degree of wear is reached, the cleaning effect that can be achieved by means of the first stripping edge 104 can be impaired.
  • the user then has the option of pulling the replaceable pull-off lip 92 out of the suction nozzle housing 77 laterally via one of the outer walls 124, 126, rotating it by 180° in relation to its central axis 130 and then pulling it back into the suction nozzle housing 77 via one of the outer walls 124, 126 .
  • the replaceable pull-off lip 92 then assumes a second position of use, in which the second pull-off edge 106 faces the non-replaceable pull-off lip 94 and the one to be cleaned hard surface can slide. As a result, the service life of the replaceable pull-off lip 92 can be extended considerably.
  • the suction channel end section 30 can be inserted into the suction channel receiving shaft 28 of the base part 12 .
  • the suction nozzle 32 can be latched to the base part 12 .
  • a latching recess 134 is arranged in the suction channel receiving shaft 28 and the first housing half-shell 76 forms a latching element in the form of a latching hook 136 in the region of the suction channel end section 30 .
  • the latching hook 136 has a spring tongue 138 which forms an elastically deformable wall section 139 of the suction channel 80 and is connected in one piece to the first half-shell 76 of the housing.
  • the spring tongue 138 carries an outwardly protruding latching projection 140 on the outside of the first housing half-shell 76. This is shown in particular figure 6 clear.
  • the spring tongue 138 is surrounded by a U-shaped through-slot 142 with the exception of its end facing away from the latching projection 140 , at which end it is connected in one piece to the first housing half-shell 76 .
  • the elastomer component forms a U-shaped film hinge in the area of the through-slot 142, which enables the spring tongue 138 to be moved together with the locking projection 140 relative to the hard component forming the first housing half-shell 76, whereby it is ensured, however, that through the through-slot 142 neither Suction air can still escape liquid from the suction channel 80.
  • the elastomer component extends along the first side walls 86, 88 of the suction channel 80 to the latching hook 136. This is shown in particular figure 5 clear.
  • the portable hard surface cleaning device 10 can be moved along the hard surface in the manner of a manual window squeegee for cleaning a hard surface, in particular a window pane or a glass door the replaceable pull-off lip 92 and the non-replaceable pull-off lip 94 supporting it can be supplied to the suction opening 82 with liquid on the hard surface.
  • the liquid can be sucked off from the suction opening 82 together with air via the suction channel 80 and fed to the separation chamber 20 .
  • the separation chamber 22 can be subjected to negative pressure by the suction unit 14 via the turbine inlet line 20 .
  • the liquid-air mixture hits the baffle 24, on which the remaining entrained liquid separates, whereas the sucked-in air flows around the baffle plate 144 and the baffle 24 and reaches the suction turbine 18 via the turbine inlet line 20.
  • the sucked air is discharged to the outside via an annular air outlet space 146, which surrounds the upper tank section 62 within the upper recess 64 in the circumferential direction.
  • the baffle plate 144 forms a first separating element for separating liquid
  • the baffle wall 24 forms a second separating element for separating liquid from the liquid-air mixture sucked in.
  • the liquid separated in the separation chamber 22 can reach the dirty liquid tank 54 via the filling funnel 70 and the filling pipe 58 . If necessary, the dirty liquid tank 54 can be emptied. The user can do this, the dirty liquid tank 54 together with the remove the filling device 56 held thereon from the base part 12 by pulling the rear tank section 66 out of the lower recess 68 and then removing the upper tank section 62 from the upper recess 64 . The user can then detach the filling device 56 from the dirty liquid tank 54 and empty the dirty liquid tank 54 . The user can then reinsert the filling device 56 into the dirty liquid tank 54 and insert this with the upper tank section 62 into the upper recess 64 and with the rear tank section 66 into the lower recess and latch with the base part 12 .
  • the user has the option of rotating the replaceable squeegee lip 92 by 180° about its central axis 130, as explained in detail above to twist, so that then the previously unused pull-off edge 104 or 106 can be used.
  • the portable hard surface cleaning device 10 is characterized by a long service life and can be moved along the hard surface by the user in the usual manner in the manner of a manual window squeegee.
  • the portable hard surface cleaning device 10 features low manufacturing costs.

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  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (20)

  1. Buse d'aspiration pour un appareil de nettoyage de surface dure portatif (10) pour enlever et aspirer un liquide d'une surface dure, en particulier d'une vitre, comprenant un boîtier de buse d'aspiration (77) avec une première et une deuxième demi-coque de boîtier (76, 78), qui réalisent entre elles un canal d'aspiration (80), dans laquelle le canal d'aspiration (80) s'étend d'une ouverture d'aspiration (82), sur laquelle est retenue une raclette interchangeable (92), à une partie d'extrémité de canal d'aspiration (30), à laquelle une source de vide peut être raccordée pour la réalisation d'un écoulement d'aspiration, et dans laquelle les deux demi-coques de boîtier (76, 78) au voisinage de l'ouverture d'aspiration (82) présentent respectivement au moins un élément de retenue (110, 114, 120, 122) et une partie de retenue (98) de la raclette interchangeable (92) est disposée entre les éléments de retenue (110, 114, 120, 122) des deux demi-coques de boîtier (76, 78), dans laquelle les éléments de retenue (110, 114, 120, 122) des demi-coques de boîtier (76, 78) réalisent avec la partie de retenue (98) de la raclette interchangeable (92) respectivement une prise, caractérisée en ce que la buse d'aspiration (32) présente une raclette non interchangeable (94), qui est formée sur la première demi-coque de boîtier (76), dans laquelle la raclette non interchangeable (94) réalise conjointement avec la première demi-coque de boîtier (76) une pièce moulée par injection avec un composant dur et un composant élastomère, et dans laquelle au moins un élément de retenue de la première demi-coque de boîtier (76) est disposé dans la zone du canal d'aspiration (80) et réalise un élément de guidage d'écoulement et le composant élastomère entoure au moins en partie dans la direction périphérique le au moins un élément de retenue disposé dans la zone du canal d'aspiration (80).
  2. Buse d'aspiration selon la revendication 1, caractérisée en ce que la partie de retenue (98) de la raclette interchangeable (92) peut être positionnée aussi bien dans une première position d'utilisation de la raclette interchangeable (92) que dans une deuxième position d'utilisation de la raclette interchangeable (92) amenée en rotation de 180° autour de son axe médian (130) entre le au moins un élément de retenue (114, 120, 122) de la première demi-coque de boîtier (76) et le au moins un élément de retenue (110) de la deuxième demi-coque de boîtier, dans laquelle l'axe médian (130) est orienté parallèlement à un axe longitudinal (102) du canal d'aspiration (80).
  3. Buse d'aspiration selon la revendication 1 ou 2, caractérisée en ce que la raclette interchangeable (92) est conçue de manière symétrique par rapport à son plan médian (96), dans laquelle le plan médian (96) est orienté parallèlement à l'axe longitudinal (102) du canal d'aspiration (80).
  4. Buse d'aspiration selon la revendication 1, 2 ou 3, caractérisée en ce que la partie de retenue (98) de la raclette interchangeable (92) est conçue sous la forme d'un élargissement et les éléments de retenue (110, 114, 120, 122) présentent respectivement un évidement.
  5. Buse d'aspiration selon la revendication 4, caractérisée en ce que l'élargissement est conçu sous la forme d'un bourrelet (100) rectiligne et les éléments de retenue (110, 114, 120, 122) présentent respectivement un évidement, dans lequel le bourrelet (120) s'enfonce.
  6. Buse d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que le au moins un élément de retenue disposé dans la zone du canal d'aspiration (80) réalise une nervure de guidage d'écoulement (114).
  7. Buse d'aspiration selon la revendication 6, caractérisée en ce que plusieurs nervures de guidage d'écoulement (114) espacées les unes des autres sont disposées dans la zone du canal d'aspiration (80).
  8. Buse d'aspiration selon la revendication 7, caractérisée en ce que les nervures de guidage d'écoulement (114) sont disposées en éventail.
  9. Buse d'aspiration selon la revendication 7 ou 8, caractérisée en ce que les nervures de guidage d'écoulement (114) sont disposées à la même hauteur par rapport à l'axe longitudinal (102) du canal d'aspiration (80) .
  10. Buse d'aspiration selon la revendication 7, 8 ou 9, caractérisée en ce que les nervures de guidage d'écoulement (114) s'amincissent dans la direction opposée au sens d'écoulement de l'écoulement d'aspiration.
  11. Buse d'aspiration selon l'une quelconque des revendications 7 à 10, caractérisée en ce que les nervures de guidage d'écoulement (114) présentent sur leur bord supérieur (116) opposé à la première demi-coque de boîtier (76) respectivement un évidement (118), dans lequel la partie de retenue (98) de la raclette interchangeable (92) s'enfonce.
  12. Buse d'aspiration selon la revendication 11, caractérisée en ce que les évidements (118) sont disposés sur les bords supérieurs (116) des nervures de guidage d'écoulement (114) dans une zone d'extrémité des nervures de guidage d'écoulement (114) arrière par rapport au sens d'écoulement de l'écoulement d'aspiration, et que les bords supérieurs (116) réalisent dans une partie montée en amont des évidements (118) une surface d'appui (119) plane pour la raclette interchangeable (92).
  13. Buse d'aspiration selon l'une quelconque des revendications 7 à 12, caractérisée en ce que les nervures de guidage d'écoulement (114) sont conçues de manière cunéiforme en section transversale.
  14. Buse d'aspiration selon l'une quelconque des revendications 7 à 13, caractérisée en ce que la raclette interchangeable (92) par rapport au sens d'écoulement de l'écoulement d'aspiration repose sur au moins la moitié de son étendue sur les nervures de guidage d'écoulement (114) .
  15. Buse d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que la première demi-coque de boîtier (76) présente au moins un autre élément de retenue (120, 122), qui est disposé à l'extérieur du canal d'aspiration (80).
  16. Buse d'aspiration selon la revendication 15, caractérisée en ce que la première demi-coque de boîtier (76) présente au moins deux autre éléments de retenue (120, 122), qui sont disposés à l'extérieur du canal d'aspiration (80) de manière symétrique l'un par rapport à l'autre par rapport à l'axe longitudinal (102) de celuici.
  17. Buse d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une des deux demi-coques de boîtier (76, 78) présente dans la zone de la partie d'extrémité de canal d'aspiration (30) un élément d'encliquetage (136), qui réalise une partie de paroi (139) déformable élastiquement du canal d'aspiration (80) et est surmoulé par un composant élastomère.
  18. Buse d'aspiration selon la revendication 17, caractérisée en ce que l'élément d'encliquetage réalise un crochet d'encliquetage (136), qui présente une languette élastique (138) réalisant la partie de paroi (139) déformable élastiquement du canal d'aspiration (80) et une partie saillante d'encliquetage (140) faisant saillie vers l'extérieur de la languette élastique (138), dans laquelle la languette élastique (138) est surmoulée par le composant élastomère.
  19. Appareil de nettoyage de surface dure portatif pour enlever et aspirer un liquide d'une surface dure, en particulier d'une vitre, avec un groupe d'aspiration (14), un réservoir de liquide sale (54) et un dispositif de séparation (24, 144) pour séparer un liquide d'un mélange d'air-de liquide aspiré, et avec une buse d'aspiration (32) selon l'une quelconque des revendications précédentes.
  20. Appareil de nettoyage de surface dure portatif selon la revendication 19, caractérisé en ce que l'appareil de nettoyage de surface dure portatif (10) présente un puits de réception de canal d'aspiration (28), qui peut être relié de manière enfichable à la partie d'extrémité de canal d'aspiration (30) et présente un logement d'encliquetage (134) pour la réception d'une partie saillante d'encliquetage (140) de la buse d'aspiration (32).
EP15816786.6A 2015-12-21 2015-12-21 Buse d'aspiration pour appareil de nettoyage de surface dure et appareil de nettoyage de surface dure équipé d'une telle buse Active EP3393320B1 (fr)

Priority Applications (1)

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PL15816786T PL3393320T3 (pl) 2015-12-21 2015-12-21 Dysza ssąca do urządzenia do czyszczenia powierzchni twardych i urządzenie do czyszczenia powierzchni twardych wyposażone w taką dyszę ssącą

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/080887 WO2017108088A1 (fr) 2015-12-21 2015-12-21 Buse d'aspiration pour appareil de nettoyage de surface dure et appareil de nettoyage de surface dure équipé d'une telle buse

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EP3393320A1 EP3393320A1 (fr) 2018-10-31
EP3393320B1 true EP3393320B1 (fr) 2022-01-26

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EP15816786.6A Active EP3393320B1 (fr) 2015-12-21 2015-12-21 Buse d'aspiration pour appareil de nettoyage de surface dure et appareil de nettoyage de surface dure équipé d'une telle buse

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US (1) US20180296044A1 (fr)
EP (1) EP3393320B1 (fr)
CN (1) CN108430290B (fr)
PL (1) PL3393320T3 (fr)
WO (1) WO2017108088A1 (fr)

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DE102017007186A1 (de) 2017-07-27 2019-01-31 Robert Bosch Gmbh Reinigungsvorrichtung
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CN114869165B (zh) * 2020-12-17 2025-12-05 西安佳赢企业管理咨询有限公司 刮擦清洁装置及刮擦清洁组件
CN115388224B (zh) * 2022-07-11 2025-08-05 广东维尔科技股份有限公司 一种清洗机污水箱阀门自动开闭的装置结构

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Publication number Publication date
CN108430290A (zh) 2018-08-21
US20180296044A1 (en) 2018-10-18
EP3393320A1 (fr) 2018-10-31
PL3393320T3 (pl) 2022-05-16
CN108430290B (zh) 2020-11-17
WO2017108088A1 (fr) 2017-06-29

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