EP4226827A1 - Buse d'aspirateur - Google Patents

Buse d'aspirateur Download PDF

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Publication number
EP4226827A1
EP4226827A1 EP23150590.0A EP23150590A EP4226827A1 EP 4226827 A1 EP4226827 A1 EP 4226827A1 EP 23150590 A EP23150590 A EP 23150590A EP 4226827 A1 EP4226827 A1 EP 4226827A1
Authority
EP
European Patent Office
Prior art keywords
suction
vacuum cleaner
cleaner nozzle
axis
pivot axis
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.)
Pending
Application number
EP23150590.0A
Other languages
German (de)
English (en)
Inventor
Viktor Hooge
Philipp Rath
Martin Zydek
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.)
Wessel Werk GmbH
Original Assignee
Wessel Werk GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wessel Werk GmbH filed Critical Wessel Werk GmbH
Publication of EP4226827A1 publication Critical patent/EP4226827A1/fr
Pending legal-status Critical Current

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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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads

Definitions

  • the invention relates to a vacuum cleaner nozzle with a suction head with a suction mouth, which is arranged on the underside of the suction head in relation to a vertical direction and connects to a suction channel arranged in the suction head.
  • the suction mouth extends in a transverse direction and is delimited by a front suction mouth edge in a working direction and a rear suction mouth edge in the working direction.
  • the vacuum cleaner nozzle also has a suction connection piece which is arranged behind the suction mouth in relation to the working direction and is fluidically connected to the suction channel.
  • the suction connection piece is articulated on the suction head—directly or indirectly—about a pivot axis running through the suction head in the transverse direction.
  • the vacuum cleaner nozzle can be connected to a vacuum cleaner via the suction connection piece.
  • the suction connection piece is fluidically connected to the vacuum cleaner directly and/or via a suction line.
  • the suction line can in particular comprise a preferably telescopic suction pipe, a handle and/or a suction hose.
  • a suction fan for generating a suction air flow and at least one dirt collection chamber for separating dirt particles carried along in the suction air flow are arranged in the vacuum cleaner.
  • the suction air fan which is fluidically connected to the vacuum cleaner nozzle, is set up to generate a suction air flow which enters the suction channel of the vacuum cleaner nozzle via the suction mouth.
  • a suction air flow which enters the suction channel of the vacuum cleaner nozzle via the suction mouth.
  • he can in particular on or within a material to be cleaned, in particular a floor surface, loosen and carry away dirt particles that have been arranged. The dirt particles are then separated and picked up in the dirt collection space.
  • the vacuum cleaner nozzle is usually not guided directly by a user, but controlled by means of the vacuum cleaner and/or a suction air duct connecting the vacuum cleaner to the vacuum cleaner nozzle.
  • Typical application scenarios provide for the vacuum cleaner to be designed as a hand-held device, which is connected directly to the connection piece of the vacuum cleaner nozzle by a rigid suction pipe. Such a configuration is referred to as a so-called "stick cleaner”.
  • Another widespread application consists in a vacuum cleaner housing standing on the floor being connected to a flexible suction hose, which is also connected to the suction connection piece via a handle and possibly a vacuum cleaner pipe.
  • the force for moving and controlling the vacuum cleaner nozzle is introduced into the suction head via the rear suction connection piece.
  • the respective alignment and positioning of the vacuum cleaner nozzle then results from the interaction of the moments of force introduced with its own weight and any support on a surface to be cleaned.
  • An essential aspect of the development of vacuum cleaner nozzles is to bring about a permanently optimal positioning of the suction mouth in relation to the surface to be cleaned with these boundary conditions.
  • the invention is based on the object of simplifying the handling of a generic vacuum cleaner nozzle and, in particular, of reducing the sliding resistance during a forward stroke.
  • the subject matter of the invention and the solution to this problem is a vacuum cleaner nozzle according to claim 1.
  • Preferred developments are specified in the dependent subclaims.
  • the invention provides that the pivot axis can be displaced between a front, upper position (first position) and a lower, rear position (second position) on the suction head. This means that in the first position the pivot axis is further forward in the working direction and higher in the vertical direction than in the second position.
  • the vertical device is in particular oriented perpendicularly to the working direction and the transverse direction.
  • the position of the pivot axis is decisive for the introduction of force from the suction connection piece into the suction head. Depending on the position, different tilting moments are introduced into the suction head. Because the pivot axis between the first position and the second position has a horizontal offset (front / rear position) in the working direction, it can automatically move to the first position with a forward stroke - i.e. with a sliding movement in the working direction - and with a backward stroke - i.e. with a pulling movement against the working direction - are automatically transferred to the second position.
  • the amount of torque transmitted during the power transmission from the suction connection piece to the suction head depends to a large extent on the length of the lever arm - that is, on the distance between the force application points.
  • the abutment or the first force application point for the generation of a torque lies in the contact of the vacuum cleaner nozzle with the surface to be cleaned - ie on the underside of the suction head having the suction mouth. With a high contact pressure - which leads to the undesirably strong sliding resistance - this underside can exert particularly high braking forces.
  • the suction head can in particular be designed in one piece or from several parts which are firmly connected to one another.
  • the suction head comprises at least one upper part of the housing and a sliding base arranged on the underside, in which the suction mouth is arranged.
  • the soleplate can be rigidly connected to the upper part of the housing or it can be mounted such that it can be moved relative to it, in particular so that it can be pivoted about an axis running in the transverse direction.
  • the pivot axis can be moved relative to the sliding sole between the first position and the second position.
  • the relative positioning of the pivot axis to the suction mouth (embodied in the sliding sole) and its edges is of particular importance.
  • the pivot axis can be pivoted between the first position and the second position by means of a toggle lever.
  • the toggle lever is a one-part or multi-part coupling element which can be pivoted on the one hand about a toggle lever axis which is fixed to the suction head and runs in the transverse direction.
  • the pivot axis is fixed relative to the toggle lever and can be pivoted together with it.
  • the toggle lever is therefore pivotable (about the pivot axis) (directly or indirectly) coupled to the suction connector. Due to its pivoting mobility, the coupling mechanism of the toggle lever enables a simple displacement of the pivot axis between the first position and the second position.
  • the toggle lever can in particular have two sections which are mirror-symmetrical with respect to a longitudinal center plane (perpendicular to the transverse direction) of the vacuum cleaner nozzle. These are particularly preferably coupled concurrently to a parallel To allow pivoting of the pivot axis.
  • the first section and the second section are formed from one piece.
  • the toggle lever can be pivoted between the first position and the second position by an angle of at least 30°, in particular at least 60° and at most 90°.
  • a pivoting movement in this particularly preferred angular range enables a particularly large displacement both in the vertical and in the horizontal direction.
  • a particularly large change in torque can be achieved within the scope of the solution according to the invention.
  • the pivot axis is particularly preferably arranged above or behind the toggle lever axis. Furthermore, in the second position with respect to the vertical direction, the pivot axis is arranged at the same level as or above the toggle lever axis.
  • the toggle lever is expediently mounted on the suction head so that it can pivot about a toggle lever axis running in the transverse direction.
  • the distance between the toggle lever axis and the pivot axis is between 20 mm and 35 mm.
  • a distance between the two axes of 20 mm and more enables a significant change in the tilting moment acting on the vacuum cleaner nozzle.
  • the displacement of the pivot axis is small enough that the user does not find it disturbing or entail design disadvantages.
  • the toggle lever axis is preferably arranged at a distance of between 8 mm and 20 mm from a suction mouth plane defined by the front suction mouth edge and rear suction mouth edge.
  • a suction mouth plane defined by the front suction mouth edge and rear suction mouth edge.
  • the level of the suction mouth is to be understood as a support level on which the underside of the suction head can rest against a flat floor surface.
  • the suction mouth plane is oriented perpendicularly to the vertical direction and extends in the working direction and the transverse direction.
  • both the front edge of the suction mouth and the rear edge of the suction mouth extend to a large extent—in particular essentially completely—within the plane of the suction mouth.
  • the toggle lever axis projected onto the plane of the suction mouth—is arranged between the front edge of the suction mouth and the rear edge of the suction mouth. If the suction mouth edges are not (completely) linear, the average position in the working direction should be used. The edges of the suction mouth regularly form the lowest point in the vertical direction of the soleplate arranged on the underside of the suction head. These are therefore decisive for the introduction of force between the sliding soleplate and a floor surface to be cleaned. As a result, there are any torques in relation to one or both edges of the suction mouth as an abutment. The function of the toggle lever axis as the displacement point of the pivot axis is improved by this preferred arrangement.
  • the pivot axis in the first position is arranged vertically above the toggle lever axis—within a tolerance range of ⁇ 5 mm in the working direction. This will the height of the swivel axis - and thus maximizes the achievable torque in relation to the suction mouth in the first position.
  • the pivot axis is guided on the suction head with a link guide.
  • at least one guide track is formed on the suction head in particular, in which a pivot pin formed concentrically around the pivot axis and/or a component connected to the suction head so that it can pivot about the pivot axis - in particular a coupling part or the suction connection piece - engages in a projection formed.
  • the pivot bolt or the projection can be guided in a form-fitting manner on the guide track directly or via a sliding block. By shifting the pivot axis along the guide track, the mobility of the pivot axis between the first position and the second position is made possible.
  • the guideway preferably runs within a longitudinal plane running perpendicularly to the transverse direction.
  • the link guide is at least partially (preferably completely) straight.
  • the relative displacement of the pivot axis in the straight guideway is thus linear on the suction head.
  • the link guide can be designed in the shape of a circular arc, at least in sections (preferably completely).
  • the arc of a circle is formed in a longitudinal plane—that is, perpendicular to the transverse direction.
  • the movement of the pivot axis relative to the suction head takes place analogously to a pivoting movement of a toggle lever arrangement.
  • the advantage of a circular link guide is that it also has additional sections with a different curvature (preferably no curvature or a curvature in the opposite direction).
  • a guideway in the form of a circular arc it is possible to emulate pivoting movements whose center point of the circular arc lies outside of the suction head.
  • the arcuate path can have a center point which is arranged below a suction mouth plane.
  • the suction channel with the suction connection piece is expediently connected by a line element variable in length, in particular a hose such as a hose. B. connected a corrugated hose.
  • the fluidic connection between the suction channel and the suction connection piece can comprise a plurality of telescopically interlocking and relatively movable components.
  • the line element variable in length can in particular compensate for a change in the relative distance between the suction channel and the suction connection piece by shifting the pivot axis and/or pivoting the suction connection piece about the pivot axis. Furthermore, adjustments with regard to the relative orientation can also be compensated for in this way.
  • the pivot axis is arranged between the front edge of the suction mouth and the rear edge of the suction mouth in the first position and the second position—as well as within all of the intermediate positions that can be assumed in between.
  • the pivot axis always rests stably above the suction mouth in the first position, in the second position (and in the intermediate positions in between). This prevents tilting due to its own weight or a vertically acting force.
  • the pivot axis is particularly preferably arranged in the first position in the area of the front edge of the suction mouth.
  • This area includes positions arranged perpendicularly above the front edge of the suction mouth in the vertical direction and 5 mm in front of and behind it in the working direction.
  • the pivot axis in the first position has a height of between 25 mm and 60 mm, preferably between 40 mm and 50 mm, in particular approx. 30 mm on the front edge of the suction mouth or the level of the suction mouth - has.
  • a correspondingly positioned swivel axis can easily be integrated within the suction head.
  • the suction connection piece is articulated on a connecting piece, which is pivotable about a rear tilting axis running in the transverse direction, and which is mounted on the suction head so that it can pivot about the pivot axis.
  • This embodiment is also referred to as a so-called double-jointed nozzle. This enables the suction head to be optimally aligned, regardless of the pushing and pulling forces applied to the suction connection piece.
  • the connecting piece is particularly preferably longer by a factor of 2, in particular by a factor of 3 to 5, than the toggle lever. This ensures that the Connector is shifted at a change in position (of the toggle) between the first position and the second position only by a small angle. In general, the essentially horizontal application of force from the connecting piece to the pivot axis is maintained.
  • the connecting piece has at least one floor support.
  • the floor support decouples vertical force components from a pushing force introduced at the suction connection piece. These can be discharged directly into the ground. Only those force components which are aligned essentially horizontally in the working direction are passed on to the suction head via the pivot axis.
  • the floor support can preferably be a roller, in which area the rear tilting axis is arranged to be rotatable about a rotation axis. The axis of rotation of the roller is particularly preferably aligned with the rear tilting axis.
  • the ground support defines a minimum ground clearance of the rear tilting axis, which is greater than the height of the pivoting axis in the first (upper) position. This defines the general orientation of the intermediate piece in a direction that falls toward the suction head.
  • the pivot axis is particularly preferably arranged in all positions—in particular in the second position—above a plane which extends from the front edge of the suction mouth through the rear tilt axis. This ensures that when a pushing force is applied (during a forward stroke), the pivot axis can be displaced from the second position to the first position.
  • the 1 shows a vacuum cleaner nozzle 1 according to the invention with a suction head 2 and a suction connection piece 3 arranged on the back in a working direction x 2 a suction mouth 4 is arranged on the underside of the suction head 2, which extends in a transverse direction y perpendicular to the working direction x and is delimited in the working direction by a front suction mouth edge 5a and a rear suction mouth edge 5b.
  • the suction mouth 4 is formed in an underside of the suction head 2 designed as a sliding base 2a.
  • the underside is to be understood in relation to a vertical direction z that is perpendicular to the working direction x and the transverse direction y.
  • the suction mouth 4 forms a suction opening through which a flow of suction air can enter the interior of the suction head 2 .
  • the interior of the suction head 2 is designed as a suction channel 6 which is fluidically connected to the suction connection piece 3 .
  • the suction connection piece is used for fluidic and mechanical coupling to an associated suction device, in particular a floor vacuum cleaner (canister cleaner) or a stick cleaner.
  • the vacuum cleaner nozzle 1 is designed as a so-called double-jointed nozzle.
  • the suction connection piece 3 is articulated on a connecting piece 7 such that it can pivot about a rear tilting axis k running in the transverse direction y.
  • the fluidic connection between the suction channel 6 and the suction connection piece 3 is provided by a corrugated hose 8 .
  • the pivot axis s according to the invention between a - in the Figure 3A , 4A and 5A illustrated - front upper first position and one - in the Figure 3B , 4B and 5B illustrated - second lower rear position displaceable.
  • the connecting piece 7 has a floor support in the form of two rollers 9, the axis of rotation of which is aligned with the rear tilting axis k.
  • the mobility of the pivot axis s is realized via a toggle lever 10 .
  • the toggle lever 10 is connected to the intermediate piece 7 so as to be pivotable about the (displaceable) pivot axis s.
  • the toggle lever 10 is pivotably mounted on the suction head 2 about a toggle lever axis a running in the transverse direction y.
  • the toggle lever axis a and the pivot axis s have a distance l 1 between 20 mm and 35 mm, also referred to as the toggle lever length.
  • FIG 3B is the detail off Figure 3A shown schematically in the second position. It can be seen that the pivot axis is shifted by pivoting the rocker arm 10 through an angle ⁇ of approximately 45° relative to the suction head 2, both downwards with respect to the vertical direction z and backwards with respect to the working direction x.
  • a suction mouth plane 11 is defined by the front suction mouth edge 5a and the rear suction mouth edge 5b. This corresponds to the contact level of the vacuum cleaner nozzle 1 in the unmoved, force-free state.
  • the toggle lever axis a has a height h 1 of between 8 mm and 20 mm.
  • the vertical height of the pivot axis s varies between a first height H 1 of 35 mm in the first position and a second height H 2 of 15 mm in the second position.
  • the relocatability of the pivot axis s is realized by a link guide 12.
  • This is designed in the form of a circular arc in the exemplary embodiment.
  • the embodiment is identical to the Figures 1 to 3B formed with a double-jointed nozzle including intermediate piece 7.
  • the link guide is limited such that the pivot axis s in the first position and the second position between the front suction mouth edge 5a and the rear suction mouth edge 5b is arranged - projected onto the suction mouth plane 11.
  • the pivot axis s is arranged vertically in the first position in the area above the front suction mouth edge 5a.
  • FIG. 5A and 5B is a modification of the embodiment of FIG Figure 3A and 3B shown.
  • the vacuum cleaner nozzle 1 is designed as a single-jointed nozzle.
  • the suction connection piece 3 is mounted directly on the suction head 2 such that it can be pivoted about the pivot axis s running through the suction head 2 . There is no intermediate piece.
  • the solution shown in turn has a toggle lever 10 .
  • the pivot axis s could also be shifted via a link guide on the housing 2 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP23150590.0A 2022-02-14 2023-01-06 Buse d'aspirateur Pending EP4226827A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022103372.4A DE102022103372A1 (de) 2022-02-14 2022-02-14 Staubsaugerdüse

Publications (1)

Publication Number Publication Date
EP4226827A1 true EP4226827A1 (fr) 2023-08-16

Family

ID=84887652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23150590.0A Pending EP4226827A1 (fr) 2022-02-14 2023-01-06 Buse d'aspirateur

Country Status (2)

Country Link
EP (1) EP4226827A1 (fr)
DE (1) DE102022103372A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039316A1 (fr) * 2001-11-03 2003-05-15 Dyson Limited Outil pour sol
EP1875846A2 (fr) * 2006-07-07 2008-01-09 Wessel-Werk Gmbh Buse pour aspirateur de sol
FR2965164A1 (fr) * 2010-09-24 2012-03-30 Seb Sa Patin d'equilibrage de suceur d'aspirateur
EP2687139A2 (fr) * 2012-07-19 2014-01-22 Wessel-Werk GmbH Buse d'aspirateur de sols
EP3042597A1 (fr) 2015-01-07 2016-07-13 Wessel-Werk GmbH Buse de sol pour aspirateur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008010897A1 (de) 2008-02-23 2009-08-27 Wessel-Werk Gmbh Düse für Bodenstaubsauger
JP5752863B2 (ja) 2013-02-04 2015-07-22 コーニンクレッカ フィリップス エヌ ヴェ 掃除機ノズル

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039316A1 (fr) * 2001-11-03 2003-05-15 Dyson Limited Outil pour sol
WO2003039315A1 (fr) 2001-11-03 2003-05-15 Dyson Limited Outil de nettoyage de plancher
EP1875846A2 (fr) * 2006-07-07 2008-01-09 Wessel-Werk Gmbh Buse pour aspirateur de sol
FR2965164A1 (fr) * 2010-09-24 2012-03-30 Seb Sa Patin d'equilibrage de suceur d'aspirateur
EP2687139A2 (fr) * 2012-07-19 2014-01-22 Wessel-Werk GmbH Buse d'aspirateur de sols
EP3042597A1 (fr) 2015-01-07 2016-07-13 Wessel-Werk GmbH Buse de sol pour aspirateur

Also Published As

Publication number Publication date
DE102022103372A1 (de) 2023-08-17

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