EP4395618B1 - Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung - Google Patents

Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung Download PDF

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Publication number
EP4395618B1
EP4395618B1 EP22769647.3A EP22769647A EP4395618B1 EP 4395618 B1 EP4395618 B1 EP 4395618B1 EP 22769647 A EP22769647 A EP 22769647A EP 4395618 B1 EP4395618 B1 EP 4395618B1
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EP
European Patent Office
Prior art keywords
nozzle arrangement
working member
value
pushing force
push
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
EP22769647.3A
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English (en)
French (fr)
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EP4395618A1 (de
Inventor
Jonne Steeman
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.)
Versuni Holding BV
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Versuni Holding BV
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Publication date
Application filed by Versuni Holding BV filed Critical Versuni Holding BV
Publication of EP4395618A1 publication Critical patent/EP4395618A1/de
Application granted granted Critical
Publication of EP4395618B1 publication Critical patent/EP4395618B1/de
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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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools

Definitions

  • the invention relates to a nozzle arrangement configured to be applied in a cleaning device and to be used in a cleaning action on a surface, wherein the nozzle arrangement: is configured to be moved forward and backward in an advancement direction of the nozzle arrangement over the surface, comprises at least one working member configured to assume one of at least two possible positions on the nozzle arrangement, and comprises a member setting mechanism configured to automatically set the position of the at least one working member.
  • the invention relates to a vacuum cleaner comprising a nozzle arrangement as mentioned, which vacuum cleaner may be a cordless vacuum cleaner and/or a stick vacuum cleaner.
  • Vacuum cleaners are known for removing dirt from a surface to be cleaned.
  • the term "dirt" as used in the present text is to be understood so as to cover any contamination as may be present on a surface and that can be removed under the influence of a vacuum cleaning action, probably combined with another cleaning action such as mopping. Practical examples in this respect include dust and small particles of any kind, and also wet types of contamination such as spilled drinks.
  • a practical example of the surface to be cleaned is a floor, wherein the floor may be of any kind, such as a wooden floor, a carpet floor, a tile floor, etc.
  • a vacuum cleaner has a vacuum cleaner head, which is commonly referred to by terms such as suction head, suction nozzle, or nozzle arrangement. In the present text, the latter term will be used.
  • the nozzle arrangement is the part of the vacuum cleaner where the actual process of picking up dirt from a surface to be cleaned is to take place and which is therefore to be put on or at least close to the surface.
  • a vacuum cleaner normally comprises a body portion including a dirt accumulating area and an arrangement configured to act on the nozzle arrangement so that a suction force is prevailing in the nozzle arrangement during operation of the vacuum cleaner. The suction force serves to facilitate transport of dirt that is picked up from the surface during operation of the vacuum cleaner towards the dirt accumulating area.
  • the suction force may also have a function in the actual process of picking up the dirt from the surface.
  • the nozzle arrangement may be equipped with at least one movable component for interacting with the surface in order to pick up the dirt, such as at least one rotatable brush that may serve as an agitator of the dirt and that may particularly be configured to help dislodge dirt from the surface and direct it to further inside the nozzle arrangement.
  • the working member for cleaning rugs/carpets is realized as a smooth operating member and the working member for cleaning hard floors is realized as a brush operating member.
  • the smooth operating member automatically functions to perform cleaning when the flow of air in its path of flow between the suction inlet and outlet of the nozzle is at or less than a predetermined speed
  • the brush operating member automatically functions to perform cleaning when the flow of air exceeds the predetermined speed.
  • a type of working member which is especially configured to interact with a soft floor such as a carpet floor, and which should not be allowed to contact a hard floor in order to avoid damage to the hard floor in the form of scratches, for example.
  • Nozzle arrangements are known which are configured to enable manual setting of the position of the working member, in which case appropriate action by a user is required, depending on the type of the surface to be cleaned. There is a risk that the user forgets to switch the position of the working member when another type of surface is to be cleaned, or that the user is confused about which position of the working member should go with which position of the working member and sets an incorrect position of the working member for that reason.
  • nozzle arrangements are known in which the underpressure prevailing in the nozzle arrangement when the nozzle arrangement is used on a hard floor is used to lift the working member off the floor.
  • the problems involved in dependency on user action are alleviated, but the fact is that relying on underpressure effects is not possible/suitable in all possible situations.
  • the level of underpressure is insufficient to realize the desired setting of the working member.
  • the constructions enabling use of underpressure to bring about movement of the working member require a lot of space in the nozzle arrangements and thereby significantly add to bulkiness of the nozzle arrangements.
  • the invention provides a nozzle arrangement configured to be applied in a cleaning device and to be used in a cleaning action on a surface, wherein the nozzle arrangement: is configured to be moved forward and backward in an advancement direction of the nozzle arrangement over the surface, comprises at least one working member configured to assume one of at least two possible positions on the nozzle arrangement, and comprises a member setting mechanism configured to automatically set the position of the at least one working member in relation to a value of at least one discrimination parameter that is influenced by motion resistance between the nozzle arrangement and an actual surface.
  • the member setting mechanism functions on the basis of another principle than using underpressure for determining the position of the at least one working member.
  • the invention covers various types of working member.
  • the at least one working member is configured to assume at least one active position at which the at least one working member is capable of influencing interaction between the nozzle arrangement and the surface, and an inactive position, i.e. a position at which the at least one working member is not capable of doing so. It may be so that the at least one working member is in a position for contacting the surface when the at least one working member is in the at least one active position, although this is not essential in the context of the invention.
  • the member setting mechanism is configured to put the at least one working member from the inactive position to an active position when the value of the at least one discrimination parameter exceeds a reference value.
  • such a reference value may be between a value of the at least one discrimination parameter related to movement of the nozzle arrangement over a hard surface and a value of the at least one discrimination parameter related to movement of the nozzle arrangement over a soft surface providing higher motion resistance than the hard surface.
  • the nozzle arrangement is configured to be moved forward and backward in the advancement direction of the nozzle arrangement over the surface under the influence of an external pushing force and an external pulling force, respectively, and the at least one discrimination parameter is a parameter representative of the external pushing force.
  • the external pushing force and the external pulling force may particularly be exerted by a user.
  • the nozzle arrangement comprises at least one rotatable brush configured to interact with the surface, and a motor configured to drive the brush, and the at least one discrimination parameter is a parameter representative of power consumption of the motor.
  • the user takes hold of an appropriate portion of the cleaning device to which the nozzle arrangement 1 is coupled, which may be a handle on a body portion of the cleaning device in case the cleaning device is a stick vacuum cleaner or a grip portion on a hose of the cleaning device in case the cleaning device is a canister vacuum cleaner, and manipulates this portion so that the movement of the nozzle arrangement 1 on the surface 2 as desired is realized.
  • an appropriate portion of the cleaning device to which the nozzle arrangement 1 is coupled which may be a handle on a body portion of the cleaning device in case the cleaning device is a stick vacuum cleaner or a grip portion on a hose of the cleaning device in case the cleaning device is a canister vacuum cleaner, and manipulates this portion so that the movement of the nozzle arrangement 1 on the surface 2 as desired is realized.
  • the nozzle arrangement 1 is equipped with a ramp element 30 as a working member that is configured to assume one of at two possible positions on the nozzle arrangement 1, namely a lowered position as shown in figure 1 , which is an active position of the ramp element 30, and a raised position as shown in figure 2 , which is an inactive position of the ramp element 30.
  • the ramp element 30 is arranged at a side of the nozzle arrangement 1 that is a front side in the advancement direction d a . At the active position, the ramp element 30 acts to limit air flow from the front side of the nozzle arrangement 1 to the nozzle arrangement 1. In this way, pressure loss which would otherwise occur under the influence of the interaction with a porous soft surface is prevented, so that dirt removal from such a type of surface is not compromised.
  • the nozzle arrangement 1 is equipped with a member setting mechanism 40 that is configured to ensure that the position of the ramp element 30 is always appropriate in view of the type of surface 2 to be cleaned.
  • the member setting mechanism 40 is particularly configured to automatically set the position of the ramp element 30 under the influence of the forces exerted by the user for moving the nozzle arrangement 1 across the surface 2 during a cleaning action as will now be explained.
  • the housing 10 of the nozzle arrangement 1 comprises two portions which are movable relative to each other to some extent, one of those housing portions being associated with the coupling area 11 and the other of those housing portions being associated with the brush area 13.
  • the ramp element 30 is coupled to the housing portion associated with the coupling area 11 through a hinging construction 41.
  • a resilient element 42 which is a coil spring in the shown example, is arranged between the two housing portions. In a default situation without any force being exerted on the housing portion associated with the coupling area 11, the resilient element 42 acts to push the housing portions apart to such an extent that the hinging construction 41 is in a position for realizing the raised, inactive position of the ramp element 30.
  • the characteristics of the resilient element 42 are chosen such that when a pushing force F push is exerted on the portion associated with the coupling area 11, as illustrated in figure 3 , this pushing force F push acts to realize forward movement of the nozzle arrangement 1 on the surface 2 without forcing movement of the ramp element 30 from the inactive position to the active position as long as the value of this pushing force F push is lower than a value of a counterforce exerted by the resilient element 42, and acts to realize forward movement of the nozzle arrangement 1 on the surface 2 while also forcing movement of the ramp element 30 from the inactive position to the active position when the value of this pushing force F push exceeds a value of the counterforce, as indicated in figure 3 by means of a curved arrow.
  • the ramp element 30 in the active position is depicted in continuous lines and the ramp element 30 in the inactive position is depicted in dashed lines.
  • this pulling force F pull acts to realize backward movement of the nozzle arrangement 1 on the surface 2.
  • movement of the ramp element 30 back from the active position to the inactive position takes place under the influence of action of the resilient element 42, as indicated in figure 4 by means of a curved arrow.
  • the ramp element 30 in the active position is depicted in dashed lines and the ramp element 30 in the inactive position is depicted in continuous lines.
  • the ramp element 30 is continuously kept in the inactive position when the pushing force F push that is exerted on the nozzle arrangement 1 during the forward movement is lower than a counterforce exerted by the resilient element 42.
  • the member setting mechanism 40 acts to move the ramp element 30 from the inactive position to the active position.
  • the ramp element 30 is automatically lowered during the forward movement and raised during the backward movement.
  • an area of friction that is present between the nozzle arrangement 1 and the surface 2 as the nozzle arrangement 1 is moved on the surface 2, i.e. an area in which the motion resistance is of influence, is indicated in figures 3 and 4 , as a box A f delimited by dashed lines.
  • the active position of the ramp element 30 is only obtained when the nozzle arrangement 1 is used on a surface 2 of the soft type, and the inactive position of the ramp element 30 is ensured in respect of a surface 2 of the hard type, as desired.
  • nozzle arrangement 1 it is possible to add features to the nozzle arrangement 1 to enable locking the position of the ramp element 30. By locking the ramp element 30 in the active position, optimal soft surface performance in backward movement can be ensured because when the ramp element 30 stays down, a higher underpressure can be created in the nozzle arrangement 1.
  • Other benefits of having locking features may include prevention of unintentional switching on high friction hard surfaces or when bumping into obstacles, or to ensure proper switching on low friction soft floors.
  • the member setting mechanism 40 as illustrated in figures 3 and 4 and described in the foregoing is configured to operate in a purely mechanical fashion. That does not alter the fact that the invention also covers embodiments of the nozzle arrangement 1 in which the member setting mechanism 40 acts on the basis of other principles, including principles involving use of an electric detection and control system.
  • a nozzle arrangement 1 In the field of cleaning surfaces, a nozzle arrangement 1 is provided that is configured to be applied in a cleaning device and to be moved forward and backward in an advancement direction d a of the nozzle arrangement 1 over a surface 2.
  • the nozzle arrangement 1 comprises at least one working member 30 configured to assume one of at least two possible positions on the nozzle arrangement 1, and a member setting mechanism 40 configured to automatically set the position of the at least one working member 30 in relation to a value of at least one discrimination parameter that is influenced by motion resistance between the nozzle arrangement 1 and an actual surface 2. In that way, automatic setting of the position of the at least one working element 30 in relation to the surface type is achieved.

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

Claims (15)

  1. Düsenanordnung (1), die dazu konfiguriert ist, in einer Reinigungsvorrichtung angewandt zu werden und bei einer Reinigungsaktion auf einer Oberfläche (2) verwendet zu werden, wobei die Düsenanordnung (1):
    - dazu konfiguriert ist, in einer Vorschubrichtung (da) der Düsenanordnung (1) über der Oberfläche (2) vorwärts und rückwärts bewegt zu werden, und
    - mindestens ein Arbeitselement (30) umfasst, das dazu konfiguriert ist, eine von mindestens zwei möglichen Positionen an der Düsenanordnung (1) einzunehmen,
    dadurch gekennzeichnet, dass die Düsenanordnung einen Elementeinstellmechanismus (40) umfasst, der dazu konfiguriert ist, die Position des mindestens einen Arbeitselements (30) automatisch im Verhältnis zu einem Wert mindestens eines Unterscheidungsparameters einzustellen, der durch den Bewegungswiderstand zwischen der Düsenanordnung (1) und einer tatsächlichen Oberfläche (2) beeinflusst ist.
  2. Düsenanordnung (1) nach Anspruch 1, wobei das mindestens eine Arbeitselement (30) dazu konfiguriert ist, mindestens eine aktive Position, in der das mindestens eine Arbeitselement (30) in der Lage ist, die Wechselwirkung zwischen der Düsenanordnung (1) und der Oberfläche (2) zu beeinflussen, und eine inaktive Position einzunehmen.
  3. Düsenanordnung (1) nach Anspruch 2, wobei der Elementeinstellmechanismus (40) dazu konfiguriert ist, das mindestens eine Arbeitselement (30) aus der inaktiven Position in eine aktive Position zu versetzen, wenn der Wert des mindestens einen Unterscheidungsparameters einen Referenzwert überschreitet.
  4. Düsenanordnung (1) nach Anspruch 3, wobei der Referenzwert zwischen einem Wert des mindestens einen Unterscheidungsparameters in Bezug auf die Bewegung der Düsenanordnung (1) über eine harte Oberfläche (2) und einem Wert des mindestens einen Unterscheidungsparameters in Bezug auf die Bewegung der Düsenanordnung (1) über eine weiche Oberfläche (2), die einen höheren Bewegungswiderstand bietet als die harte Oberfläche (2), liegt.
  5. Düsenanordnung (1) nach einem der Ansprüche 1-4, wobei die Düsenanordnung (1) dazu konfiguriert ist, unter dem Einfluss einer externen Schubkraft (Fpush) bzw. einer externen Zugkraft (Fpull) in der Vorschubrichtung (da) der Düsenanordnung (1) über die Oberfläche (2) vorwärts und rückwärts bewegt zu werden, und wobei der mindestens eine Unterscheidungsparameter ein Parameter ist, der die externe Schubkraft (Fpush) darstellt.
  6. Düsenanordnung (1) nach einem der Ansprüche 1-5, die mindestens eine drehbare Bürste (20) umfasst, die zur Wechselwirkung mit der Oberfläche (2) konfiguriert ist, und einen Motor, der zum Antreiben der Bürste (20) konfiguriert ist, wobei der mindestens eine Unterscheidungsparameter ein Parameter ist, der den Stromverbrauch des Motors darstellt.
  7. Düsenanordnung (1) nach einem der Ansprüche 1-6, wobei der Elementeinstellmechanismus (40) ein Sensorsystem umfasst, das einen Sensor beinhaltet, der dazu konfiguriert ist, eine Ausgabe zu erzeugen, die den Wert des mindestens einen Unterscheidungsparameters darstellt, und eine Steuereinheit, die dazu konfiguriert ist, die Ausgabe des Sensors zu empfangen und einen Algorithmus anzuwenden, der dazu ausgelegt ist, die Position des mindestens einen Arbeitselements (30) zu bestimmen, die auf der Grundlage der Ausgabe des Sensors eingestellt werden soll.
  8. Düsenanordnung (1) nach Anspruch 5, wobei das Elementeinstellsystem (40) ein mechanisches System umfasst, das ein Reaktionselement (42) beinhaltet, das dazu konfiguriert ist, eine Gegenkraft bereitzustellen, die gegen die externe Schubkraft (Fpush) wirkt.
  9. Düsenanordnung (1) nach Anspruch 8, die das Arbeitselement (30) wie in Anspruch 2 definiert umfasst, wobei das Reaktionselement (42) dazu konfiguriert ist, es dem mindestens einen Arbeitselement (30) zu ermöglichen, in der inaktiven Position zu bleiben, solange der Wert der externen Schubkraft (Fpush) geringer ist als ein Wert der Gegenkraft, und es dem mindestens einen Arbeitselement (30) zu ermöglichen, sich von der inaktiven Position in eine aktive Position zu bewegen, wenn der Wert der externen Schubkraft (Fpush) den Wert der Gegenkraft überschreitet.
  10. Düsenanordnung (1) nach Anspruch 9, wobei das Reaktionselement (42) dazu konfiguriert ist, eine Bewegung des mindestens einen Arbeitselements (30) von der aktiven Position in die inaktive Position zu ermöglichen, wenn der Wert der externen Schubkraft (Fpush) unter den Wert der Gegenkraft fällt.
  11. Düsenanordnung (1) nach einem der Ansprüche 8-10, wobei das Reaktionselement (42) mindestens ein elastisches Element umfasst.
  12. Düsenanordnung (1) nach einem der Ansprüche 1-11, die einen Verriegelungsmechanismus umfasst, der dazu konfiguriert ist, eine Position zum Verriegeln des mindestens einen Arbeitselements (30) an seiner Stelle oder eine Position zum Freigeben des mindestens einen Arbeitselements (30) einzunehmen.
  13. Düsenanordnung (1) nach einem der Ansprüche 1-12, wobei das mindestens eine Arbeitselement (30) ein Rampenelement umfasst, das an einer Seite der Düsenanordnung (1) eingerichtet ist, die in der Vorschubrichtung (da) eine Vorderseite ist, und wobei das Rampenelement (30) zwischen einer aktiven Position, in der das Rampenelement (30) wirkt, um den Luftstrom von der Vorderseite der Düsenanordnung (1) zur Düsenanordnung (1) zu begrenzen, und einer inaktiven Position bewegbar ist.
  14. Düsenanordnung (1) nach einem der Ansprüche 1-13, die dazu konfiguriert ist, in einer Reinigungsvorrichtung angewandt zu werden, die eine Luftsaugquelle beinhaltet, und ein Gehäuse (10) umfasst, das einen Kopplungsbereich (11) beinhaltet, der dazu konfiguriert ist, das Koppeln des Gehäuses (10) mit der Luftsaugquelle der Reinigungsvorrichtung zu ermöglichen.
  15. Staubsauger, der eine Düsenanordnung (1) nach einem der Ansprüche 1-14 umfasst.
EP22769647.3A 2021-09-01 2022-08-26 Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung Active EP4395618B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21194418.6A EP4144272A1 (de) 2021-09-01 2021-09-01 Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung
PCT/EP2022/073844 WO2023031059A1 (en) 2021-09-01 2022-08-26 Setting a position of at least one working member in a nozzle arrangement

Publications (2)

Publication Number Publication Date
EP4395618A1 EP4395618A1 (de) 2024-07-10
EP4395618B1 true EP4395618B1 (de) 2025-04-09

Family

ID=77595478

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21194418.6A Withdrawn EP4144272A1 (de) 2021-09-01 2021-09-01 Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung
EP22769647.3A Active EP4395618B1 (de) 2021-09-01 2022-08-26 Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21194418.6A Withdrawn EP4144272A1 (de) 2021-09-01 2021-09-01 Einstellung einer position von mindestens einem arbeitselement in einer düsenanordnung

Country Status (4)

Country Link
EP (2) EP4144272A1 (de)
CN (1) CN117915816A (de)
PL (1) PL4395618T3 (de)
WO (1) WO2023031059A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE353012B (de) 1971-02-26 1973-01-22 Electrolux Ab
US4447931A (en) * 1980-12-03 1984-05-15 Aktiebolaget Electrolux Remotely controlled vacuum cleaner nozzle
EP2747625B1 (de) * 2011-08-23 2017-06-07 Koninklijke Philips N.V. Reinigungsvorrichtung zur reinigung einer oberfläche mit einer bürste und rakelelement

Also Published As

Publication number Publication date
EP4395618A1 (de) 2024-07-10
PL4395618T3 (pl) 2025-06-02
EP4144272A1 (de) 2023-03-08
CN117915816A (zh) 2024-04-19
WO2023031059A1 (en) 2023-03-09

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