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EP3763271B1 - Suceur pour un dispositif d'aspiration pour le nettoyage et l'entretien des sols. - Google Patents

Suceur pour un dispositif d'aspiration pour le nettoyage et l'entretien des sols. Download PDF

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Publication number
EP3763271B1
EP3763271B1 EP19184914.0A EP19184914A EP3763271B1 EP 3763271 B1 EP3763271 B1 EP 3763271B1 EP 19184914 A EP19184914 A EP 19184914A EP 3763271 B1 EP3763271 B1 EP 3763271B1
Authority
EP
European Patent Office
Prior art keywords
false air
floor nozzle
suction mouth
floor
air device
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
EP19184914.0A
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German (de)
English (en)
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EP3763271A1 (fr
EP3763271C0 (fr
Inventor
Holger Lepold
Johannes Hofmann
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.)
Sprintus GmbH
Original Assignee
Sprintus GmbH
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Publication date
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Priority to EP19184914.0A priority Critical patent/EP3763271B1/fr
Publication of EP3763271A1 publication Critical patent/EP3763271A1/fr
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Publication of EP3763271B1 publication Critical patent/EP3763271B1/fr
Publication of EP3763271C0 publication Critical patent/EP3763271C0/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/08—Nozzles with means adapted for blowing

Definitions

  • the invention relates to a floor nozzle for a suction device, in particular for a vacuum cleaner, for cleaning and/or maintaining floor surfaces.
  • the GB 958,445 an "Improvement in or relating to Suction Cleaner Nozzles" or a suction cleaner nozzle.
  • the suction cleaner nozzle has a comb on the underside of the nozzle, with an air inlet in the upper part of the nozzle.
  • the arrangement of the comb and the construction of the nozzle are such that a suction air flow flows down through the air inlet to the comb and into the suction opening when the nozzle is in use. This means that the false air is used to clean the comb.
  • the object of the present invention is to provide a floor nozzle for a suction device, in particular for a vacuum cleaner, for cleaning and/or care of floor surfaces, which has improved suction and thus cleaning performance while simultaneously reducing the pushing forces for the floor nozzle and can preferably be produced cost-effectively and using less material.
  • This object is achieved according to the invention by the features of the independent patent claim. Further advantageous developments are the subject of the subclaims.
  • the floor nozzle comprises a so-called sealing edge on the floor side, preferably a circumferential sealing edge, within which a negative pressure can be generated by a suction device.
  • the sealing edge can be interrupted or consist of several sections. It is important that a negative pressure can be generated within the area formed by the sealing edge when the suction device or the floor nozzle is in operation.
  • the at least one sealing edge surrounds the at least one suction mouth edge and at least one outlet of the false air device for false air outside the at least one suction mouth edge.
  • the sealing edge is formed partially or completely by the suction mouth edge or suction mouth edge sections.
  • the false air device in the operating state of the floor nozzle, is in fluid communication with the suction mouth via the suction opening, so that false air flows or is sucked in from at least one outlet of the false air device below the at least one suction mouth edge into the suction opening.
  • the cleaning performance on floor surfaces, in particular on carpets can be increased and pushing forces for moving the floor nozzle can be reduced.
  • the false air device or its outlet is arranged on/next to the suction mouth or on/next to its edge/suction mouth edge in such a way that false air is sucked in via the suction opening into the suction mouth below the at least one suction mouth edge in such a way that this false air on the one hand reduces the contact pressure of the floor nozzle to reduce the pushing forces and thus make the floor nozzle easier to operate, and on the other hand simultaneously improves the removal of dirt particles by swirling them around or better detaching them from the floor and transporting them along below the above-mentioned suction mouth edge.
  • suction mouth edge is understood to mean an area that completely or at least partially surrounds or delimits the suction opening, preferably in a similar way to how an edge or an edge area delimits a hole.
  • the suction mouth edge can preferably be formed by one or more profiles that at least partially or completely form an underside of the floor nozzle.
  • a suction mouth edge of the suction mouth can also be designed, for example, as part of a sliding sole of the floor nozzle located on the underside of the floor nozzle.
  • the term "in operation” or “in the operating state” refers to a state in which the floor nozzle rests on a floor surface and preferably the suction device generates a negative pressure in the suction mouth.
  • the floor nozzle has a sliding sole on the bottom side for sliding on a floor surface and preferably roller elements, so that the roller elements and the sliding sole advantageously generate a support plane for the floor nozzle.
  • roller elements and the sliding sole are arranged on the underside of the floor nozzle in such a way that the suction mouth opening is arranged between them.
  • suction mouth edge forms part of the sliding sole.
  • At least one outlet of the false air device and the suction opening are in fluid communication above or below the at least one suction mouth edge.
  • At least one outlet of the false air device and the suction opening are arranged in such a way that in the operating state of the floor nozzle a fluid flow of false air can be established from the at least one outlet into the suction opening below the at least one suction mouth edge. It is precisely by forming a flow from the at least one outlet of the False air device above or below the at least one suction mouth edge towards the suction opening, the false air supplied to the floor nozzle is used not only to reduce the pushing forces of the floor nozzle but also to loosen or move dirt before the actual suction through the suction opening and thus improve the cleaning result.
  • the false air device comprises an inlet and at least one outlet for false air. False air can therefore flow from the inlet to the at least one outlet.
  • the at least one outlet for false air is arranged outside the at least one suction mouth edge, in particular outside the suction mouth, and at the suction opening, so that false air from the false air device can be used to pre-clean a floor area and to reduce pushing forces. It is precisely through this arrangement, in which the false air device and the suction mouth are in fluid communication with one another via a flow from the at least one outlet of the false air device via the at least one suction mouth edge to the suction opening, that pushing forces can be reduced and a floor area can be pre-cleaned.
  • the at least one outlet is arranged in the sliding direction in front of the at least one suction mouth edge and/or in front of the suction mouth.
  • the at least one outlet is arranged in the sliding direction behind the at least one suction mouth edge and/or behind the suction mouth. It is also conceivable that the at least one outlet is arranged in the sliding direction next to or to the side of the at least one suction mouth edge and/or next to or to the side of the suction mouth(s).
  • this arrangement serves precisely to loosen dirt on a floor surface in advance and to facilitate its removal or transport with the established flow between the at least one outlet of the false air device and the suction opening of the suction mouth, which is at least partially or completely bordered/enclosed by the at least one suction mouth edge.
  • the at least one suction mouth edge has a front edge region and/or a rear edge region and/or a first lateral and/or a second lateral edge region in the sliding direction of the floor nozzle.
  • One or more edge regions of the at least one suction mouth edge can have further elements, for example made of rubber and/or plastic, for better sealing of the floor nozzle against the environment or the ambient air, so that the flow from the at least one outlet of the false air device to the suction mouth below the at least one suction mouth edge can be improved.
  • the aforementioned edge regions are connected to one another or the edge regions form a one-piece or continuous suction mouth edge. It is also advantageous if the false air device is arranged in the sliding direction of the floor nozzle in front of the front edge region or behind the rear edge region of the at least one suction mouth edge.
  • At least one outlet of the false air device is arranged in the sliding direction in front of the front edge region or behind the rear edge region of the at least one suction mouth edge. In other words again, it is advantageous if all outlets of the false air device are arranged in front of the front edge region or behind the rear edge region of the at least one suction mouth edge.
  • the suction opening and at least one outlet of the false air device are oriented towards an underside of the floor nozzle or towards the floor.
  • the underside can be arranged opposite a floor surface to be cleaned, particularly in the operating state.
  • an inlet of the false air device to be oriented towards an upper side of the floor nozzle, wherein the upper side of a floor surface to be cleaned is preferably facing away.
  • an inlet of the false air device is oriented towards a bottom of the floor nozzle or towards a lateral area of the floor nozzle. While the top is advantageously arranged opposite the bottom, a lateral area or areas delimit the floor nozzle to the side, with the lateral areas connecting the top to the bottom.
  • the false air device comprises an inlet and at least one outlet for false air.
  • two or more outlets are arranged in a row.
  • the row extends across the width of the floor nozzle.
  • the false air device has at least one fluid channel between the inlet and the at least one outlet. False air can therefore flow from the inlet to the at least one outlet.
  • the at least one fluid channel connects an upper side of the floor nozzle with an underside of the floor nozzle. In this way, "clean" ambient air or false air from a non-dirty area can be used to clean a floor surface.
  • the false air device comprises a diffuser device and/or at least one nozzle device and/or a fluid chamber, which together form at least one fluid channel.
  • the false air device comprises a diffuser device, which preferably has an inlet and an outlet.
  • the entrance is formed by an inlet of the false air device.
  • the inlet prefferably has a smaller cross-sectional area than the outlet.
  • a classic diffuser is therefore arranged in the false air device, which represents an increase in the flow cross-section in the direction of flow of the flowing medium, thereby slowing down the flowing fluid or false air.
  • the outlet opens into a fluid chamber of the false air device.
  • the false air device comprises at least one nozzle device, which preferably comprises an inlet and an outlet. It is also advantageous if the outlet is formed by at least one outlet of the false air device.
  • the inlet has a larger cross-sectional area than the outlet.
  • at least one classic nozzle or at least one classic confuser is arranged in the false air device, which reduces the flow cross-section in the direction of flow of the flowing medium. which increases the speed of the fluid flowing through or the false air.
  • the inlet is connected to a fluid chamber of the false air device.
  • the false air device advantageously comprises a fluid chamber.
  • the fluid chamber essentially has the function of creating a connection between a diffuser device and at least one nozzle device.
  • the fluid space has a funnel-shaped cross-section when cut along the sliding direction of the floor nozzle.
  • the fluid space forms a nozzle shape when cut along the sliding direction of the floor nozzle.
  • the fluid space has a rectangular cross-section when cut transversely to the sliding direction of the floor nozzle.
  • an outlet of the diffuser device may be connected to an inlet of the at least one nozzle device via the fluid chamber.
  • the fluid chamber has a first and a second partial area when cut transversely to the sliding direction of the floor nozzle.
  • first partial area is arranged above the second partial area.
  • first partial area is closer to an upper side of the floor nozzle than the second partial area, or the second partial area is closer to an underside of the floor nozzle than the first partial area.
  • the first sub-area is connected to a diffuser device of the false air device.
  • the first partial area has a rectangular cross-section when cut transversely to the sliding direction of the floor nozzle.
  • the first partial area preferably has a larger cross-section than an outlet of the diffuser device. In this way, the flow cross-section in the flow direction of the flowing medium is increased.
  • the second partial area advantageously adjoins the at least one nozzle device of the false air device.
  • the second partial region has a larger cross-section compared to an outlet of the at least one nozzle device.
  • the second partial region has a funnel-shaped cross-section when cut transversely to the sliding direction of the floor nozzle.
  • the floor nozzle comprises a sealing edge which is arranged on the opposite side of at least one outlet of the false air device, so that a fluid flow from the at least one outlet is conveyed in the direction of the suction opening or the flow of fluid from the at least one outlet to the suction opening is supported.
  • suction mouth edge is preferably to be distinguished from the term "sealing edge”.
  • One or more sealing edges of the floor nozzle are advantageously used, on the one hand, to convey or support a fluid flow from the at least one outlet of the false air device to the suction mouth of the floor nozzle below the at least one suction mouth edge; and, on the other hand, preferably to improve the formation of a negative pressure in or below the floor nozzle in the operating state.
  • the sealing edge may surround the at least one suction mouth edge and at least one outlet of the false air device for false air outside the at least one suction mouth edge. In this way, not only can a negative pressure be generated by a suction device within the suction mouth, but the negative pressure prevailing at the suction opening can also act on the at least one outlet.
  • the sealing edge is arranged on a rear and/or front edge region and on a first lateral edge region and on a second lateral edge region of the at least one suction mouth edge on the suction mouth edge.
  • an area enclosed by the sealing edge in particular by a circumferential sealing edge, is larger than the area of the suction opening, so that the sealing edge surrounds the at least one suction mouth edge and at least one outlet of the false air device for false air, which is arranged outside the at least one suction mouth edge.
  • the sealing edge is formed by a rubber material or a profile-like projection on the underside of the floor nozzle.
  • an inlet of the false air device has a polygonal shape, in particular a rectangular shape. This is easy to manufacture.
  • the inlet can be closed in an adjustable manner so that the floor nozzle according to the invention can be used on different floor coverings and preferably in order to be able to set the desired pushing force.
  • the false air device comprises a slide control device for manually, step-by-step opening and closing the inlet.
  • the false air device comprises a slide control device which is designed as a path-controlled valve.
  • the slide control device advantageously comprises a slide control element with which the cross-section of the inlet of the false air device can be adjusted, preferably step by step.
  • the sliding control element comprises at least one locking lug for engaging in a locking receptacle.
  • the at least one locking lug is arranged laterally on the slide control element, in particular in a spring-loaded manner. This enables the locking lugs to engage in various predetermined positions on a locking receptacle and to switch between these positions.
  • the slide control device advantageously comprises at least one locking receptacle for at least one locking lug.
  • the locking receptacle preferably provides various predetermined positions or various locking points for locking at least one locking lug, at which the at least one locking lug of a slide control element or a slide control element can lock. It is therefore possible to lock the slide control element in various positions relative to the locking receptacle and thus to determine the position of the two relative to one another.
  • At least one locking receptacle is formed by a housing of the floor nozzle.
  • the floor nozzle comprises a housing which forms the suction mouth, the at least one suction mouth edge, the false air device, the inlet or the diffuser device and the at least one outlet or the at least one nozzle device.
  • the housing is constructed in several parts.
  • the false air device comprises a control device for automatically opening and closing the inlet.
  • control device is designed as a force-controlled valve.
  • control device comprises a closure element with which the inlet can be opened and closed.
  • control device comprises a stop element against which a closure element can be struck.
  • the stop element comprises a magnetic or magnetizable material.
  • closure element comprises a magnetizable or magnetic material.
  • the closure element comprises a magnetic/magnetizable material and the stop element comprises a magnetizable/magnetic material, so that both attract each other and the inlet can be closed.
  • the magnetic force between the stop element and the closure element can be predetermined, so that preferably as soon as the negative pressure in the suction mouth is higher than the magnetic force between the stop element and the closure element, the closure element opens the inlet, whereby false air passes through the false air device into the suction opening.
  • control device comprises a spring element for applying force to the closure element in the direction of a stop element.
  • the spring element applies force to the closure element in the direction of a position in which the closure element closes the inlet and that the closure element opens the inlet, as soon as the negative pressure in the suction mouth is preferably higher than the pressure force of the spring element, to such an extent that false air passes through the closure element into the suction mouth.
  • the spring force of the spring element is adjustable via a rotary control element for adjusting the length of the spring element between the locking element and the rotary control element.
  • the spring element is arranged between the rotation control element and the closure element.
  • the rotary control element and the closure element are connected to one another via a threaded connection.
  • the rotary control element has a pot-shaped cross-section.
  • the rotary control element comprises an internal thread.
  • the locking element can be screwed into the open side of the rotary control element.
  • closure element prefferably has an external thread.
  • control device of the force-controlled valve can comprise both magnetic or magnetizable materials and a spring element. This achieves greater precision when adjusting the valve to the working pressure of the floor nozzle.
  • This idea preferably concerns - in simplified terms - a floor nozzle with a false air device, with which it is possible to use the energy of the false air to clean the floor.
  • Figure 1 shows a sectional view of the floor nozzle 1 according to the invention with an enlarged detail.
  • FIG. 1 Shown in more detail Figure 1 a floor nozzle 1 for a suction device, in particular for a vacuum cleaner, for cleaning and/or maintaining floor surfaces.
  • the floor nozzle 1 mentioned has according to Figure 1 a suction mouth 2 with a suction mouth edge 3 arranged on the bottom (better shown in Figure 3 ), which completely encloses a suction opening 4.
  • the suction mouth edge 3 delimits the suction opening 4.
  • the floor nozzle 1 has a false air device 5 which is designed to supply false air to the floor nozzle 1, whereby pushing forces for pushing the floor nozzle 1 can be reduced.
  • the false air device 5 In the operating state of the floor nozzle 1, in which the floor nozzle 1 rests on a floor surface and a suction device generates a negative pressure in the suction mouth 2, the false air device 5 is in fluid communication with the suction mouth 2 via the suction opening 4, so that false air flows from outlets 7 of the false air device 5 below the suction mouth edge 3 into the suction opening 4. This allows the cleaning performance on floor surfaces, in particular on carpets, to be increased and at the same time pushing forces for moving the floor nozzle 1 to be reduced.
  • various outlets 7 of the false air device 5 and the suction opening 4 are in fluid communication via the suction mouth edge 3 in order to loosen and transport dirt particles from a floor surface, in particular in a carpet, by means of the false air flowing out of the outlets 7, which is sucked in by the suction mouth 2.
  • Figure 1 that various outlets 7 of the false air device 5 and the suction opening 4 are arranged relative to one another in such a way that a fluid flow of false air from the outlets 7 into the suction opening 4 below the suction mouth edge 3 can be established.
  • FIG. 1 a flow arrow P is drawn along which false air flows from an inlet 6 to an outlet 7 and into the suction opening 4 when negative pressure is generated in the suction mouth 2 or in the operating state.
  • the false air device 5 is explained in greater detail below.
  • the false air device 5 has an inlet 6 and various outlets 7 for false air, whereby the outlets 7 for false air are arranged outside the suction mouth edge 3, outside the suction mouth 2 and at the suction opening 4. In this way, false air from the false air device 5 can be used to pre-clean a floor area and to reduce pushing forces.
  • outlets 7 are arranged in the sliding direction S in front of the suction mouth edge 3 and in front of the suction mouth 2.
  • the suction opening 4 and the outlets 7 of the false air device 5 are oriented towards a bottom U of the floor nozzle 1 or towards the floor, wherein the bottom U can be arranged opposite a floor surface to be cleaned.
  • the inlet 6 of the false air device 5 is oriented towards an upper side O of the floor nozzle 1, wherein the upper side O faces away from a floor surface to be cleaned.
  • the false air device 5 has an inlet 6 and various outlets 7 for false air, between which the false air device 5 has a fluid channel 12.
  • the fluid channel 12 connects the upper side O of the floor nozzle 1 with the lower side U of the floor nozzle 1.
  • Figure 2 shows a sectional view of the 3-dimensionally illustrated floor nozzle 1 according to the invention from Figure 1 .
  • the false air device 5 has a diffuser device 13, various nozzle devices 14 and a fluid chamber 15, which together form the fluid channel 12.
  • the diffuser device 13 has an inlet 16 and an outlet 17, wherein the inlet 16 is formed by the inlet 6 of the false air device 5.
  • the inlet 16 has a smaller cross-sectional area than the outlet 17, which opens into the fluid chamber 15 of the false air device 5.
  • the flow cross-section in the flow direction of the flowing medium is increased, whereby the flowing fluid or the false air can be slowed down or is slowed down.
  • the false air device 5 has various nozzle devices 14, each of which comprises an inlet 18 and an outlet 19.
  • Each outlet 19 is formed by an outlet 7 of the false air device 5, wherein the inlet 18 has a larger cross-sectional area than the outlet 19. In this way, the flow cross-section in the flow direction of the flowing medium is reduced, whereby the flowing fluid or the false air can be accelerated or is accelerated.
  • the outlet 17 of the diffuser device 13 is connected to the inlet 18 of the nozzle device 14 via the fluid space 15.
  • the fluid chamber 15 has, as in Figure 1 shown, in a section along the sliding direction S of the floor nozzle 1, a funnel-shaped cross section, wherein the fluid space 15 in a section transverse to the sliding direction S of the floor nozzle 1, as in Figure 2 shown, has a rectangular cross-section.
  • Figure 2 It can be seen that the fluid chamber 15 has a first and a second partial region 20, 21 when cut transversely to the sliding direction S of the floor nozzle 1.
  • the first partial area 20 is arranged above the second partial area 21 and adjoins the diffuser device 13 of the false air device 5.
  • the first subsection 20 has, as in Figure 2 As can be seen, when cut transversely to the sliding direction S of the floor nozzle 1, it has a rectangular cross-section, whereby the first partial region 20 has a larger cross-section compared to the outlet 17 of the diffuser device 13.
  • the second partial area 21, like the first partial area 20, has a funnel-shaped cross-section (compare Figure 1 ).
  • the inlet 6 of the false air device 5 has a rectangular shape and can be closed in an adjustable manner.
  • the false air device 5 has a slide control device 23 for manually, step-by-step opening and closing the cross-section of the inlet 6.
  • the slide control device 23 comprises a slide control element 24 with two locking lugs 25, 26 for engaging in a locking receptacle 27 and a locking receptacle 27 for the locking lugs 25, 26.
  • the locking receptacle 27 has various locking points for locking the locking lugs 25, 26. It is therefore possible to lock the sliding control element 24 in various positions relative to the locking receptacle 27 and thus to determine the position of the two relative to one another.
  • Figure 2 It can be seen that the slide control element 24 is formed in one piece and the locking receptacle 27 is formed by a housing 28 of the floor nozzle 1.
  • the housing 28 of the floor nozzle 1 is constructed in several parts and forms the suction mouth 2, the suction mouth edge 3, the false air device 5, the inlet 6 or the diffuser device 13 and the outlets 7 or the nozzle devices 14.
  • Figure 3 shows a bottom view of the floor nozzle 1 according to the invention from Figure 1 .
  • the suction mouth edge 3 in the sliding direction S of the floor nozzle 1 has a front edge region 8, a rear edge region 9, a first lateral edge region 10 and a second lateral edge region 11.
  • the aforementioned edge areas 8, 9, 10, 11 are connected to each other or form a one-piece suction mouth edge 3.
  • the false air device 5 is arranged in the sliding direction S of the floor nozzle 1 in front of the front edge region 8 of the suction mouth edge 3, whereby all outlets 7 of the false air device 5 are arranged in front of the front edge region 8 of the suction mouth edge 3.
  • outlets 7 are arranged in a row and the row of outlets 7 extends across the width of the floor nozzle 1.
  • the floor nozzle 1 comprises a circumferential sealing edge 22 within which a vacuum can be generated by a suction device.
  • the sealing edge 22 can also be interrupted or consist of several sections. It is important that a sufficient vacuum can still be generated when the suction device or the floor nozzle is in operation. At least part of the sealing edge 22 can be formed by parts of the suction mouth edge 3.
  • the sealing edge 22 surrounds the suction mouth edge 3 and the outlets 7 of the false air device 5 for false air outside the suction mouth edge 3, wherein the sealing edge 22 is preferably arranged on the rear edge region 9 on the first lateral edge 10 and on the second lateral edge region 11 on the suction mouth edge 3.
  • the circumferential sealing edge 22 advantageously encloses a larger area compared to the suction opening 4, so that the sealing edge 22 surrounds the suction mouth edge 3 and the outlets 7 of the false air device 5 for false air, which are arranged outside the suction mouth edge 3.
  • the floor nozzle 1 is designed according to Figures 1 and 2 equipped with an adjustable false air opening 6 or an inlet 6 or with a slide control device 23.
  • the false air opening 6 or the sliding control device 23 can be opened more or less depending on the floor covering.
  • a detent 25, 26, 27 prevents unintentional adjustments.
  • Figure 2 shows a cut fluid channel 12, which leads false air to small openings 7 or outlets 7 on the front underside U of the floor nozzle 1.
  • these openings 7 are designed as a strip.
  • Said openings 7 or outlets 7 are arranged within the sealing edge 22 of the floor nozzle 1, in which a negative pressure can be generated by a suction device (see Figure 3 ).
  • the incoming false air flows, as in Figure 1 indicated by a flow arrow P, through the fluid channel 12 towards the underside U.
  • This incoming air ensures, on the one hand, a reduction in the negative pressure or reduces the pushing forces, and, on the other hand, the air is intended to shoot through the nozzle device 14 into a carpet or onto a floor surface and loosen dust particles.
  • the reduction in the negative pressure results in a reduction in the pushing forces.
  • the use of false air in front of the suction mouth 2 is intended to ensure that the cleaning performance on carpets in particular is increased, while at the same time the pushing forces do not exceed an uncomfortable range.
  • the incoming false air which is sucked in by the suction mouth 2, is intended to loosen dirt particles in the carpet or on a floor surface and transport them along with it.
  • Figure 4 shows a sectional view similar Figure 1 , but according to a further embodiment of the floor nozzle 1 according to the invention.
  • the control device 29 has a closure element 30 with which the inlet 6 can be opened and closed.
  • control device 29 has a stop element 31 against which the closure element 30 can be struck.
  • closure element 30 comprises a magnetic material and the stop element 31 comprises a magnetizable material, so that both attract each other and the inlet 6 can be closed.
  • a working pressure of around 120 mbar is usually established during operation.
  • the magnetic force in the valve mentioned above is designed in such a way that the valve gives way when this working pressure is reached and the opening opens to atmospheric pressure.
  • This incoming air ensures, on the one hand, that the working pressure is reduced at this moment, and, on the other hand, the geometry of the air duct is intended to shoot the air into the carpet and loosen dust particles.
  • control device 29 can also have a spring element 32 for applying force to the closure element 30 in the direction of a stop element 31. This is to support a precise adjustment of the valve to the floor surface to be cleaned.
  • the magnetic force can be additionally supported by the force of the spring element 32 by specifically relieving or supporting the magnetic force by pre-tensioning or by relieving the spring in the spring element 32. In a preferred embodiment of the present invention, however, the magnetic force can be dispensed with, so that the valve is controlled exclusively via the spring element 32.
  • the spring element 32 applies force to the closure element 30 in the direction of a position in which the closure element 30 closes the inlet 6, and the closure element 30 opens the inlet 6 as soon as the negative pressure in the suction mouth 2 is higher than the pressure force of the spring element 32, so that false air passes through the closure element 30 into the suction mouth 2.
  • the spring force of the spring element 32 is controlled via a rotary control element 33 for adjusting the length of the spring element 32 between the closure element 30 and Rotary control element 33 adjustable, wherein the spring element 32 is arranged between the rotary control element 33 and the closure element 30.
  • the rotary control element 33 and the closure element 30 are connected to one another via a threaded connection.
  • the rotary control element 33 is pot-shaped in cross section and has an internal thread, while the closure element 30 is screwed into the open side of the rotary control element 33 with its external thread.
  • the floor nozzle 1 is, as in Figure 4 shown, equipped with a valve 29 or with a control device 29 and an air channel 12 or a fluid channel 12.
  • the valve 29 has a closure element 30 which prevents passage to atmospheric pressure. Under the closure element 30 there is also a spring element 32 which can increase or reduce its holding force by adjustment.
  • the closure element 30 in conjunction with the spring element 32 is designed in such a way that it gives way when this working pressure is reached and opens the opening to atmospheric pressure.
  • a flow arrow P false air or air through the air channel 12 or fluid channel 12 in the direction of the underside U.
  • this incoming air ensures that the working pressure is reduced at that moment, and on the other hand, the nozzle-like geometry of the outlets 7 is intended to shoot the false air into the carpet or onto a floor surface and loosen dirt such as dust particles.
  • the reduction in working pressure results in a reduction in pushing forces. This should ensure that the cleaning performance on floor surfaces such as carpets is increased, while at the same time the pushing forces do not exceed an uncomfortable level.
  • This is achieved by the spring force of the closure element 30 being Spring element 32 is influenced by the fact that the closing force of the closure element 30 can be adjusted by preloading the spring element 32.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (15)

  1. Suceur (1) pour un dispositif d'aspiration, en particulier pour un aspirateur, pour le nettoyage des sols, présentant :
    - une bouche d'aspiration (2) avec au moins un bord de bouche d'aspiration (3) disposé côté sol, qui délimite entièrement ou au moins partiellement une ouverture d'aspiration (4),
    - au moins un bord d'étanchéité (22) disposé côté sol, à l'intérieur duquel une dépression peut être générée par un dispositif d'aspiration, ainsi que
    - un dispositif d'air parasite (5) conçu pour amener de l'air parasite au suceur (1),
    - l'au moins un bord d'étanchéité (22) entourant l'au moins un bord de bouche d'aspiration (3) et au moins une sortie (7) du dispositif d'air parasite (5) pour l'air parasite à l'extérieur de l'au moins un bord de bouche d'aspiration (3) et,
    - dans l'état de fonctionnement du suceur (1), le dispositif d'air parasite (5) étant en liaison fluidique avec la bouche d'aspiration (2) via l'ouverture d'aspiration (4), de sorte que l'air parasite provenant de l'au moins une sortie (7) du dispositif d'air parasite (5) s'écoule dans l'ouverture d'aspiration (4) en dessous d'au moins un bord de bouche d'aspiration (3).
  2. Suceur selon la revendication 1,
    - au moins une sortie (7) du dispositif d'air parasite (5) et l'ouverture d'aspiration (4) étant en communication fluidique via l'au moins un bord de bouche d'aspiration (3), afin de détacher et d'entraîner des particules de saleté d'un sol, en particulier dans un tapis, par l'air parasite sortant de l'au moins une sortie (7), qui est aspiré par la bouche d'aspiration (2),
    - au moins une sortie (7) du dispositif d'air parasite (5) et l'ouverture d'aspiration (4) étant disposées de préférence l'une par rapport à l'autre de telle sorte que, dans l'état de fonctionnement du suceur, un écoulement de fluide d'air parasite puisse être établi depuis l'au moins une sortie (7) dans l'ouverture d'aspiration (4) en dessous de l'au moins un bord de bouche d'aspiration (3).
  3. Suceur selon la revendication 1 ou 2,
    - le dispositif d'air parasite (5) comprenant une entrée (6) et au moins une sortie (7) pour l'air parasite,
    - l'au moins une sortie (7) pour l'air parasite étant disposée de préférence à l'extérieur de l'au moins un bord de bouche d'aspiration (3), en particulier à l'extérieur de la bouche d'aspiration (2), et sur l'ouverture d'aspiration (4), de sorte que l'air parasite puisse être utilisé par le dispositif d'air parasite (5) pour le nettoyage préliminaire d'un sol et pour la réduction des forces de poussée,
    - l'au moins une sortie (7) étant disposée de préférence dans le sens de coulissement (S) devant l'au moins un bord de bouche d'aspiration (3) et/ou devant la bouche d'aspiration (2), ou l'au moins une sortie (7) étant disposée dans le sens de coulissement (S) derrière l'au moins un bord de bouche d'aspiration (3) et/ou derrière la bouche d'aspiration (2).
  4. Suceur selon l'une des revendications précédentes,
    - l'au moins un bord de bouche d'aspiration (3) présentant, dans le sens de coulissement (S) du suceur (1), une zone de bord avant (8), une zone de bord arrière (9), une première zone de bord latérale (10) et/ou une deuxième zone de bord latérale (11),
    - le dispositif d'air parasite (5) étant disposé de préférence dans le sens de coulissement (S) du suceur (1) devant la zone de bord avant (8) de l'au moins un bord de bouche d'aspiration (3),
    - au moins une sortie (7) du dispositif d'air parasite (5) étant disposée de préférence, dans le sens de coulissement (S), devant la zone de bord avant (8) ou derrière la zone de bord arrière (9) de l'au moins un bord de bouche d'aspiration (3),
    - toutes les sorties (7) du dispositif d'air parasite (5) étant disposées de préférence devant la zone de bord avant (8) ou derrière la zone de bord arrière (9) de l'au moins un bord de bouche d'aspiration (3).
  5. Suceur selon l'une des revendications précédentes,
    - l'ouverture d'aspiration (4) et au moins une sortie (7) du dispositif d'air parasite (5) étant orientées vers une face inférieure (U) du suceur (1) ou côté sol,
    - la face inférieure (U) pouvant être disposée en face d'un sol à nettoyer,
    - une entrée (6) du dispositif d'air parasite (5) étant orientée de préférence vers une face supérieure (O) du suceur (1),
    - une entrée (6) du dispositif d'air parasite (5) étant orientée de préférence vers une face inférieure (U) du suceur (1) ou vers une zone latérale du suceur (1).
  6. Suceur selon l'une des revendications précédentes,
    - le dispositif d'air parasite (5) comprenant une entrée (6) et au moins une sortie (7) pour l'air parasite,
    - le dispositif d'air parasite (5) présentant au moins un canal de fluide (12) entre l'entrée (6) et l'au moins une sortie (7),
    - l'au moins un canal de fluide (12) reliant de préférence une face supérieure (O) du suceur (1) à une face inférieure (U) du suceur (1),
    - le dispositif d'air parasite (5) comprenant de préférence un dispositif diffuseur (13) et/ou au moins un dispositif à suceur (14) et/ou une chambre de fluide (15), qui forment ensemble au moins un canal de fluide (12).
  7. Suceur selon l'une des revendications précédentes,
    - le dispositif d'air parasite (5) comprenant un dispositif diffuseur (13),
    - le dispositif diffuseur (13) comprenant de préférence une entrée (16) et une sortie (17),
    - l'entrée (16) étant de préférence formée par une entrée (6) du dispositif d'air parasite (5),
    - l'entrée (16) présentant de préférence une surface de section transversale plus petite que la sortie (17),
    - la sortie (17) débouchant de préférence dans une chambre de fluide (15) du dispositif d'air parasite (5).
  8. Suceur selon l'une des revendications précédentes,
    - le dispositif d'air parasite (5) comprenant au moins un dispositif à suceur (14),
    - l'au moins un dispositif à suceur (14) comprenant de préférence une entrée (18) et une sortie (19),
    - la sortie (19) étant de préférence formée par au moins une sortie (7) du dispositif d'air parasite (5),
    - l'entrée (18) présentant de préférence une surface de section transversale plus grande que la sortie (19),
    - l'entrée (18) étant de préférence reliée à une chambre de fluide (15) du dispositif d'air parasite (5).
  9. Suceur selon l'une des revendications précédentes,
    - le dispositif d'air parasite (5) comprenant une chambre de fluide (15),
    - la chambre de fluide (15) présentant de préférence une section transversale en forme d'entonnoir dans le cas d'une coupe le long du sens de coulissement (S) du suceur (1),
    - la chambre de fluide (15) présentant de préférence une section transversale rectangulaire dans le cas d'une coupe transversale au sens de coulissement (S) du suceur (1),
    - une sortie (17) du dispositif diffuseur (13) étant de préférence reliée à une entrée (18) de l'au moins un dispositif à suceur (14) via la chambre de fluide (15).
  10. Suceur selon la revendication 9,
    - la chambre de fluide (15) présentant, dans le cas d'une coupe transversale au sens de coulissement (S) du suceur (1), une première et une deuxième zone partielle (20, 21),
    - la première zone partielle (20) étant de préférence disposée au-dessus de la deuxième zone partielle (21).
  11. Suceur selon la revendication 10,
    - la première zone partielle (20) se reliant à un dispositif diffuseur (13) du dispositif d'air parasite (5),
    - la première zone partielle (20) présentant de préférence une section transversale rectangulaire dans le cas d'une coupe transversale au sens de coulissement (S) du suceur (1),
    - la première zone partielle (20) présentant de préférence une section transversale plus grande par rapport à une sortie (17) du dispositif diffuseur (13).
  12. Suceur selon la revendication 10 ou 11,
    - la deuxième zone partielle (21) étant reliée à l'au moins un dispositif à suceur (14) du dispositif d'air parasite (5),
    - la deuxième zone partielle (21) présentant de préférence une section transversale plus grande par rapport à une sortie (19) de l'au moins un dispositif à suceur (14),
    - la deuxième zone partielle (21) présentant de préférence une section transversale en forme d'entonnoir dans le cas d'une coupe transversale au sens de coulissement (S) du suceur (1).
  13. Suceur selon l'une des revendications précédentes,
    - au moins une partie du bord d'étanchéité (22) étant formée par l'au moins un bord de bouche d'aspiration (3).
  14. Suceur selon l'une des revendications précédentes,
    - une entrée (6) du dispositif d'air parasite (5) présentant une forme polygonale, en particulier une forme rectangulaire,
    - l'entrée (6) pouvant de préférence être fermée de manière réglable,
    - le dispositif d'air parasite (5) comprenant de préférence un dispositif de régulation à coulisse (23) pour ouvrir et fermer manuellement et pas à pas la section transversale de l'entrée (6),
    - le dispositif de régulation à coulisse (23) comprenant de préférence un élément de régulation à coulisse (24),
    - l'élément de régulation à coulisse (24) comprenant de préférence au moins un ergot d'encliquetage (25, 26) destiné à s'engager dans un logement d'encliquetage (27),
    - l'au moins un ergot d'encliquetage (25, 26) étant de préférence disposé latéralement sur l'élément de régulation à coulisse (24), en particulier sur ressort,
    - le dispositif de régulation à coulisse (23) comprenant de préférence au moins un logement d'encliquetage (27) pour au moins un ergot d'encliquetage (25, 26),
    - l'au moins un logement d'encliquetage (27) étant formé de préférence par un boîtier (28) du suceur (1).
  15. Suceur selon l'une des revendications précédentes,
    - le dispositif d'air parasite (5) comprenant un dispositif de régulation (29) pour l'ouverture et la fermeture automatiques de l'entrée (6),
    - le dispositif de régulation (29) comprenant de préférence un élément de fermeture (30) avec lequel l'entrée (6) peut être ouverte et fermée,
    - le dispositif de régulation (29) comprenant de préférence un élément de butée (31) contre lequel un élément de fermeture (30) peut être mis en butée,
    - l'élément de fermeture (30) comprenant de préférence un matériau magnétique/magnétisable et l'élément de butée (31) comprenant un matériau magnétisable/magnétique, de sorte que les deux s'attirent mutuellement et que l'entrée (6) puisse être fermée,
    - la force magnétique entre l'élément de butée (31) et l'élément de fermeture (30) pouvant être de préférence prédéterminée, de sorte que, dès que la dépression dans la bouche d'aspiration (2) est supérieure à la force magnétique entre l'élément de butée (31) et l'élément de fermeture (30), l'élément de fermeture (30) ouvre l'entrée (6), ce qui permet à l'air parasite de pénétrer dans l'ouverture d'aspiration (4) par le dispositif d'air parasite (5),
    - le dispositif de régulation (29) comprenant de préférence un élément ressort (32) pour appliquer une force à l'élément de fermeture (30) en direction d'un élément de butée (31),
    - l'élément ressort (32) appliquant de préférence une force à l'élément de fermeture (30) en direction d'une position dans laquelle l'élément de fermeture (30) ferme l'entrée (6), et l'élément de fermeture (30) ouvrant l'entrée (6) dès que la dépression dans la bouche d'aspiration (2) est supérieure à la force de pression de l'élément ressort (32), dans une mesure telle que de l'air parasite pénètre dans la bouche d'aspiration (2) par l'élément de fermeture (30),
    - la force de l'élément ressort (32) étant de préférence réglable via un élément de commande rotative (33) pour régler la longueur de l'élément ressort (32) entre l'élément de fermeture (30) et l'élément de commande rotative (33),
    - l'élément ressort (32) étant de préférence disposé entre l'élément de commande rotative (33) et l'élément de fermeture (30),
    - l'élément de commande rotative (33) et l'élément de fermeture (30) étant de préférence reliés l'un à l'autre par un raccord fileté.
EP19184914.0A 2019-07-08 2019-07-08 Suceur pour un dispositif d'aspiration pour le nettoyage et l'entretien des sols. Active EP3763271B1 (fr)

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EP19184914.0A EP3763271B1 (fr) 2019-07-08 2019-07-08 Suceur pour un dispositif d'aspiration pour le nettoyage et l'entretien des sols.

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EP19184914.0A EP3763271B1 (fr) 2019-07-08 2019-07-08 Suceur pour un dispositif d'aspiration pour le nettoyage et l'entretien des sols.

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CH397983A (de) * 1961-10-31 1965-08-31 Siemens Elektrogeraete Gmbh Staubsaugerdüse mit an der Unterseite der Düse vorgesehenem Kamm zur Aufnahme von Fäden
DE3100164A1 (de) * 1981-01-07 1982-08-05 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Staubsaugerduese
DE19805901C2 (de) 1998-02-13 2002-06-27 Duepro Ag Romanshorn Saugreinigungswerkzeug, insbesondere Bodensaugdüse
KR100688614B1 (ko) * 2005-10-04 2007-03-02 삼성광주전자 주식회사 진공청소기의 흡입브러시
NL1030311C1 (nl) * 2005-10-31 2007-05-03 Geert Kerssies Mondstuk voor een stofzuiger.
CN104703524B (zh) * 2012-12-21 2017-03-29 伊莱克斯公司 具有进风孔的被动真空吸尘器吸嘴

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