EP2534990A2 - Buse de sol pour un aspirateur et aspirateur doté d'une telle buse de sol - Google Patents

Buse de sol pour un aspirateur et aspirateur doté d'une telle buse de sol Download PDF

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Publication number
EP2534990A2
EP2534990A2 EP20120401117 EP12401117A EP2534990A2 EP 2534990 A2 EP2534990 A2 EP 2534990A2 EP 20120401117 EP20120401117 EP 20120401117 EP 12401117 A EP12401117 A EP 12401117A EP 2534990 A2 EP2534990 A2 EP 2534990A2
Authority
EP
European Patent Office
Prior art keywords
suction channel
floor nozzle
saugkanalkante
suction
movement
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.)
Withdrawn
Application number
EP20120401117
Other languages
German (de)
English (en)
Other versions
EP2534990A3 (fr
Inventor
Martin Behrenswerth
Christian Finke
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2534990A2 publication Critical patent/EP2534990A2/fr
Publication of EP2534990A3 publication Critical patent/EP2534990A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a floor nozzle for a vacuum cleaner according to the preamble of claim 1, ie a floor nozzle with a suction mouth and at least one outgoing therefrom suction channel, wherein the suction mouth / suction channel is limited by a Saugkanalkante and wherein the Saugkanalkante on a first side of the suction channel and wherein this first side of the suction channel is usually further away from a user using the floor nozzle than one of the first side on the suction side opposite second side, such that during a conventional forward movement of the floor nozzle during suction, this first side and thus the Saugkanalkante before the Suction mouth and the suction channel is located.
  • Such floor nozzles are known per se.
  • Applicants may be referred to applicant's floor nozzles with the type designations SBD 245, SBD 450, SBD 285, SBD 550 and SBD 265.
  • floor nozzles In such floor nozzles is caused when passing over a pile carpet with the floor nozzle that includes carpet from the carpet, which are in a forward movement of the floor nozzle in the direction of movement of the floor nozzle, located in front of the suction channel Saugkanalkante (front Saugmund- / Saugkanalkante) something, so that a small gap forms directly behind this edge.
  • suction air which flows under the front suction channel edge, comes into contact with dust in the pile carpet and entrains it. This process occurs only once for each movement of the floor nozzle for the respective swept area and twice in the case of floor nozzles in one embodiment as so-called two-channel floor nozzles.
  • suction air flowing through a suction channel and two-channel bottom nozzles are not quite optimal insofar as the suction air stream is divided between the two suction channels formed there and thus only half the amount of air flows through a respective suction channel associated Saugkanalkante.
  • An object of the present invention is accordingly to provide a further embodiment of a floor nozzle for a vacuum cleaner, in particular a floor nozzle, which is characterized by an increase in dust collection efficiency and / or a reduction of the resistance to movement and / or an improvement in energy efficiency.
  • a floor nozzle of the type mentioned with the features of the independent claim is in a floor nozzle for a vacuum cleaner, which has a suction mouth opening and at least one suction channel emanating therefrom, wherein the suction channel is limited by a Saugkanalkante at least in a usual direction of movement of the floor nozzle during operation, provided that the floor nozzle in front of the Saugkanalkante, in the direction of movement of the floor nozzle or Seen from the suction mouth in front of the Saugkanalkante, at least one further Saugkanalkante.
  • Saugkanalkante the common in the prior art and directly adjacent to the or each suction channel Saugkanalkante is referred to as the first Saugkanalkante and to distinguish the seen from the suction from before the first Saugkanalkante provided further Saugkanalkante as the second Saugkanalkante.
  • An advantage of the invention is that even the further or second Saugkanalkante when driving over, for. a pile carpet with the floor nozzle leads to a bending of the fibers and after sweeping the fibers through the second, further Saugkanalkante to an elastic relaxation of the previously bent fibers, whereby an additional loosening of a compound of dirt or dust particles is achieved with the carpet fibers. These can then be sucked off when passing over with the first suction channel edge and the suction air stream flowing under both suction channel edges.
  • the approach according to the invention may not be compared or confused with a floor nozzle having a first and second suction mouth and corresponding to two suction channels and a middle suction channel edge formed between both suction channels.
  • a floor nozzle is located in front of a (in the direction of movement) front suction and behind a (in the direction of movement) rear suction channel each have a Saugkanalkante (front and rear Saugkanalkante).
  • the middle suction channel edge With the middle suction channel edge, such a floor nozzle thus has three suction channel edges. Considering only the rear suction, is located in front of this first the middle Saugkanalkante and then also located in front of the front suction duct front Saugkanalkante.
  • the front suction channel is still located between the middle suction channel edge and the front suction channel edge, whereas in the case of the floor nozzle proposed here, the second edge directly follows the first edge directly adjoining the suction channel.
  • the same suction air flow is guided over two edges, while in known two-channel floor nozzles, the air flow is divided into the first and second suction air duct and the split air flow is guided only over one edge, namely either the front or the rear edge, and the middle edge is even in a low-flow area where dust transport hardly takes place.
  • Embodiments of the invention are the subject of the dependent claims.
  • backlinks indicate the further development of the subject matter of the main claim by the features of the respective subclaim. They may also contain independent inventions having a design independent of the objects of the preceding claims and are not to be understood as a waiver of obtaining independent, objective protection of their characteristics.
  • independent inventions having a design independent of the objects of the preceding claims and are not to be understood as a waiver of obtaining independent, objective protection of their characteristics.
  • it is to be assumed that such a restriction does not exist in the respective preceding claims.
  • first suction channel edge and the or each second, further suction channel edge each have a run-on slope facing away from the suction mouth or the directly adjacent suction channel, there is a reduction in the resistance to movement when using the floor nozzle, e.g. when driving over a pile carpet, in that the ramps cause a continuous bending of the carpet pile fibers and the surfaces of the ramps themselves have a low coefficient of friction, so that there is little friction.
  • a height of the other second Saugkanalkante has been shown that even at a height of the other second Saugkanalkante of 0.5 mm, a corresponding influence on the dust-holding capacity, by an additional loosening of a compound of dirt or dust particles with the carpet fibers, determine.
  • Measurements for the height of the further second suction channel edge in the range of 3 to 10 mm have been found to be particularly favorable and effective, in that it is achieved that carpet pile fibers can erect themselves upright between the edges for a short time.
  • a height of the further second Saugkanalkante in the specified range is particularly suitable for long-pile carpets. With an average pile height, a height of the further second suction channel edge of 5 mm should typically be selected in order to produce this effect.
  • Fig. 1 shows in a sectional view a side view of a floor nozzle 10. This has a suction channel 12 in a front region. In a rear area, a connecting piece 14 is shown, with which a suction pipe of a vacuum cleaner (not shown) is connected or connectable in the usual manner.
  • An in Fig. 1 Plotted arrow 16 shows insofar a direction for forward movement of the floor nozzle 10. Such a direction is understood in the following as the usual direction of movement. Moving in the direction of arrow 16, the floor nozzle 10 is moved away from a user located behind the floor nozzle 10. Of course, a reverse direction of movement is possible by the user pulls the floor nozzle 10 to approach.
  • Fig. 2 shows an enlarged section of the illustration according to Fig. 1 in the area of the suction channel 12.
  • a first Saugkanalkante 18 in front of the suction channel 12, namely in the direction of movement (arrow 16), a first Saugkanalkante 18.
  • the first Saugkanalkante 18 limits as it were the suction channel 12 in the illustrated by the arrow 16 direction of movement.
  • a second, further suction channel edge 20 is located in front of the first suction channel edge 18.
  • Each suction channel edge 18, 20 has a run-on slope 22, 24 (first run-up slope 22, second run-on slope 24) facing away from the suction channel 12.
  • FIG. 2 Shown in the picture in Fig. 2 also a carpet pile 26 with carpet pile fibers included. It can be seen that during a movement of the floor nozzle 10 (FIG. Fig. 1 ) in the direction of the arrow 16, that is to say during a forward movement or during a movement in a "usual" direction of movement, the carpet pile fibers are bent so that an elastic deformation results, which is dissolved again as soon as the respective first or second suction channel edge 18, 20 leaves the area of the respective carpet pile fibers. Due to the bending of the carpet pile fibers possibly adhering dirt is loosened and it forms directly behind the respective Saugkanalkante 18, 20, a small gap in the carpet pile.
  • Fig. 2 already shows a special embodiment of the floor nozzle 10, in which not only in the direction of movement (arrow 16) in front of the suction channel 12, a first and a second, more Saugkanalkante 18, 20 are provided, but in the same way two Saugkanalkanten 30, 32 also behind the suction channel 12 are provided.
  • the advantageous effect of the second, further Saugkanalkante 20, 32 results not only in a forward movement (arrow 16) of the floor nozzle 10, but also in an opposite backward movement.
  • Fig. 3 essentially shows a repetition of the presentation Fig. 2 , Here, it is shown that, starting from a first suction channel edge 18 (or two suction channel edges 18, 30 directly adjacent to the suction channel 12), the or each second, further suction channel edge 20, 32 is reset, ie has a greater distance from the ground level. This greater distance from ground level is shown in the illustration Fig. 3 marked with "b".
  • Favorable values for the additional distance from the ground level, ie for the dimension "b" are according to the findings of the Applicant values in the range of 0.3 to 0.8 mm. It can be seen further that an inclination of the chamfers 22, 24 of the first and second suction channel edge 18, 20 is the same or at least substantially equal.
  • the dimension "a” in the illustration in Fig. 3 located.
  • this dimension “a” also represents the run-on slope 24 of the further second suction channel edge 20.
  • favorable values for dimension "a” are at least 0.5 mm, better in the range from 3 to 10 mm, and preferably 5 mm, so that it can be ensured that the carpet pile fibers 26 ( Fig. 2 ) between the Saugkanalkanten 18, 20 can at least briefly upright again.
  • FIG. 5 shows a schematically simplified view of a floor nozzle 10 (FIG. Fig. 1 ) from underneath. Recognizable in each case the suction channel 12 and located approximately in the middle of the suction channel 12 suction mouth. Before and behind the suction channel 12 are each the first and second Saugkanalkante 18, 20; 30, 32. The suction air stream 28 is illustrated in each case by dashed arrows. At the in Fig. 4 As shown, air can flow in to the sides of the floor nozzle 10.
  • Fig. 6 shows an embodiment of a bottom profile of a floor nozzle 10, as is known in the art.
  • the illustration is provided essentially only for a better understanding of the differences of the floor nozzle 10 according to the approach according to the invention and its embodiments of the prior art.
  • a plurality of suction channel edges 38, 40, 42 can be provided, namely when the floor nozzle 36 is a floor nozzle with two or more suction channels 12.
  • Fig. 6 the bottom profile of such a floor nozzle 36 with two suction channels 12 is shown. This has three Saugkanalkanten 38, 40, 42.
  • the three suction channel edges 38, 40, 42 can be considered as the front suction channel edge 38, the middle suction channel edge 40 and the rear suction channel edge 42.
  • suction channel 12 Starting from the adjacent to the rear Saugkanalkante 42 suction channel 12 are located in front of this rear suction channel 12, the middle Saugkanalkante 40 and the front Saugkanalkante 38. So are in front of you such Saugkanal 12 two Saugkanalkanten 38, 40, but - in contrast to the approach according to the invention - not in immediate succession, because in fact between the front and the middle Saugkanalkante 38, 40 nor the front suction channel 12 is located.
  • Suction air flow represented by arrows 28 is divided between the two suction channels 12, so that the middle suction channel edge 40 is located in a low-flow region B. Even if the middle Saugkanalkante 40 causes a bending of carpet pile fibers, there is hardly any removal of dust because of the low-flow area B, so that essentially only the front and the rear Saugkanalkante 38, 42 are effective. Here, however, each - in contrast to approach according to the invention - each only one suction channel edge 38, 42 is provided.
  • a floor nozzle 10 for a vacuum cleaner which has a suction mouth opening and at least one suction channel 12 emanating therefrom, wherein the suction channel 12 at least in a usual direction of movement of the floor nozzle 10 in operation by a suction channel edge 18th is limited, which is characterized in that the floor nozzle 10 in front of the Saugkanalkante 18, in the direction of movement of the floor nozzle 12 in front of the Saugkanalkante 18, at least one further Saugkanalkante 20.
  • the floor nozzle 10 can also be referred to as a floor nozzle 10 with double suction mouth edges (double suction channel edges).
EP12401117.2A 2011-06-17 2012-06-13 Buse de sol pour un aspirateur et aspirateur doté d'une telle buse de sol Withdrawn EP2534990A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110051139 DE102011051139A1 (de) 2011-06-17 2011-06-17 Bodendüse für einen Staubsauger und Staubsauger mit einer solchen Bodendüse

Publications (2)

Publication Number Publication Date
EP2534990A2 true EP2534990A2 (fr) 2012-12-19
EP2534990A3 EP2534990A3 (fr) 2015-05-27

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EP12401117.2A Withdrawn EP2534990A3 (fr) 2011-06-17 2012-06-13 Buse de sol pour un aspirateur et aspirateur doté d'une telle buse de sol

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EP (1) EP2534990A3 (fr)
DE (1) DE102011051139A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016100122A1 (de) 2016-01-05 2017-07-06 Miele & Cie. Kg Bodendüse für einen Staubsauger, Staubsauger und Verfahren zur Herstellung einer Bodendüse für einen Staubsauger
WO2018036603A1 (fr) 2016-08-22 2018-03-01 Alfred Kärcher Gmbh & Co. Kg Suceur pour un aspirateur, procédé d'aspiration de surfaces textiles et aspirateur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL28711C (fr) * 1927-07-12
DE7833705U1 (de) * 1978-11-13 1979-04-26 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Gleitplatte fuer staubsaugerduesen
DE19706240A1 (de) * 1997-02-18 1998-08-20 Fedag Romanshorn Fa Saugreinigungswerkzeug mit höhenverstellbarem Saugmund
DE102004006402A1 (de) * 2004-02-10 2005-08-25 Vorwerk & Co. Interholding Gmbh Bodendüse für einen Staubsauger
DE102008034458B4 (de) * 2008-07-24 2019-02-14 Vorwerk & Co. Interholding Gmbh Handgeführte Saugdüse zum Anschluss an einen Staubsauger und Saugdüse trennbar mit einem Düsenvorsatz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016100122A1 (de) 2016-01-05 2017-07-06 Miele & Cie. Kg Bodendüse für einen Staubsauger, Staubsauger und Verfahren zur Herstellung einer Bodendüse für einen Staubsauger
WO2018036603A1 (fr) 2016-08-22 2018-03-01 Alfred Kärcher Gmbh & Co. Kg Suceur pour un aspirateur, procédé d'aspiration de surfaces textiles et aspirateur

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Publication number Publication date
EP2534990A3 (fr) 2015-05-27
DE102011051139A1 (de) 2012-12-20

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