EP3639715B1 - Buse de sol pour un aspirateur - Google Patents

Buse de sol pour un aspirateur Download PDF

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Publication number
EP3639715B1
EP3639715B1 EP18200437.4A EP18200437A EP3639715B1 EP 3639715 B1 EP3639715 B1 EP 3639715B1 EP 18200437 A EP18200437 A EP 18200437A EP 3639715 B1 EP3639715 B1 EP 3639715B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
suction mouth
sliding surface
floor nozzle
slide
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
EP18200437.4A
Other languages
German (de)
English (en)
Other versions
EP3639715A1 (fr
Inventor
Philipp Rath
Klaus-Dieter Riehl
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
Priority to EP18200437.4A priority Critical patent/EP3639715B1/fr
Priority to CN201910855321.2A priority patent/CN111035309B/zh
Publication of EP3639715A1 publication Critical patent/EP3639715A1/fr
Application granted granted Critical
Publication of EP3639715B1 publication Critical patent/EP3639715B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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

Definitions

  • the invention relates to a vacuum cleaner floor nozzle with a housing that extends in a working direction and perpendicularly thereto in the transverse direction and a suction mouth that is arranged on the underside of the housing and can be connected to a suction air duct.
  • the suction mouth extends in the transverse direction over a width and is delimited in the working direction by a front suction mouth edge and a rear suction mouth edge.
  • Vacuum cleaner floor nozzles are used to shape and direct the suction air flow of a vacuum cleaner.
  • the cleaning properties of a vacuum cleaner system are significantly influenced by the design of the vacuum cleaner floor nozzle.
  • the widths of the gaps through which a suction air stream entering the vacuum cleaner is guided along the surface to be cleaned are thus determined by the geometric design of a vacuum cleaner floor nozzle. This results in very specific flow and vacuum conditions, on which the cleaning success largely depends.
  • the geometry of vacuum cleaner floor nozzles is therefore constantly being optimized in order to improve the cleaning result on smooth and carpeted floors.
  • a further challenge in the design of vacuum cleaner floor nozzles lies in the suction of coarse dirt. These are particularly large particles, which cannot pass through the gaps provided with the suction air flow and cannot be transported through textile floor coverings. There is often the problem that coarse dirt particles are pushed in front of the vacuum cleaner floor nozzle without getting into the effective suction air flow. In addition to the insufficient cleaning effect, there is also the risk that the coarse dirt damaged the floor surface.
  • the bristle strips for switching between smooth floor and carpeted floor position and the front edge of the suction nozzle act as an obstacle to coarse dirt entering the interior of the vacuum cleaner floor nozzle.
  • adjustable openings can be provided therein, which allow coarse dirt to pass through.
  • additional support elements can also be attached for smooth floors, which can also lift the bristle strips. Both approaches cannot be transferred to carpets. In carpet operation, the bristle strips are retracted, so that the vacuum cleaner floor nozzle rests directly on the textile floor material with its underside designed as a sliding sole. A lifting of the housing - also by means of additional support elements - is therefore prohibited. Also, for effective support on elastic carpets, large-area support elements would have to be provided, which in turn could impede both the suction air flow and the entry of coarse dirt into the vacuum cleaner floor nozzle.
  • a vacuum cleaner nozzle is known in which a slide-on surface is arranged in front of the suction mouth, which has a circular arc segment with a radius of curvature between 40 mm and 50 mm in longitudinal section.
  • the suction mouth is preferably closed all around.
  • the suction air flow can enter the suction mouth exclusively via the edges of the suction mouth.
  • the circular arc segment has a radius of curvature of at least 50 mm, particularly preferably between 60 and 70 mm, in particular approximately 65 mm.
  • the special effect of the circular arc-shaped front sliding surface is particularly pronounced in the preferred parameter ranges. If the radius of curvature is too small, there is a sharp transition, so that coarse dirt particles are pushed in front of the vacuum cleaner nozzle without being changed. Too little curvature on the other side is also impractical, since the front sliding surface is very long to create a sufficient difference in height and, on the other hand, an air flow between the sliding surface and the floor covering is prevented.
  • the slide-on surface exclusively has an underside that is arc-shaped in longitudinal section.
  • the invention is based on the essential knowledge that the circular arc shape combines very good properties in terms of sliding behavior with the funnel effect.
  • the slide-on surface can in particular partially have the shape of a cylinder jacket. This is particularly the case when the trailing end of the ride-on surface is in line in the transverse direction and the radius of curvature of the ride-on surface is constant throughout.
  • a slide-on surface 5 is arranged in front of the front edge 4 of the suction mouth and extends over at least 75% of the width B of the suction mouth 3 in the transverse direction y.
  • the slide-on surface 5 has in Figure 3A shown longitudinal section along the working direction x a circular arc segment 6 with a radius of curvature r between 40 mm and 80 mm. In the working direction x, the slide-on surface 5 extends over a length s of at least 15 mm. How to 2 can also be seen, the suction mouth 3 is closed at the edge, so that an inflow of the suction air flow over the front suction mouth edge 4 is favored with the corresponding funnel effect.
  • a thread lifter strip 10 is arranged within the slide-on surface 5 according to the invention.
  • the slide-on surface 5 has an underside that is designed exclusively in the shape of a circular arc in longitudinal section.
  • the radius of curvature r is also constant at 65 mm in the entire area of the sliding surface 5 .
  • the underside forms the shape of part of a cylinder jacket.
  • the front suction mouth edge 4 is straight in the transverse direction y.
  • the slide-on surface 5 has, at its front end 7 facing away from the front edge 4 of the suction mouth, a region 12 that is linear in longitudinal section. This has a length l of at least 3 mm.

Landscapes

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

Claims (7)

  1. Suceur de sol pour un aspirateur, pourvu d'un corps (1) s'étendant dans une direction de travail (x) et dans une direction transversale (y) placée à la perpendiculaire de celle-ci et d'une bouche d'aspiration (3) placée sue la face inférieure du corps (1) et susceptible de se raccorder sur un guide d'air d'aspiration (2), laquelle, dans la direction transversale (y) s'étend sur une largeur (B) et dans la direction de travail (x) est délimitée par une arête antérieure (4) de bouche d'aspiration et par une arête postérieure (4) de bouche d'aspiration, à l'avant de l'arête antérieure (4) de bouche d'aspiration, dans la direction de travail étant placée une surface de glissement (5), laquelle dans la direction transversale (y) s'étend sur au moins 75 % de la largeur (B) de la bouche d'aspiration (3), la surface de glissement (5) comportant en coupe longitudinale un segment d'arc de cercle (6) pourvu d'un angle de courbure (r) compris entre 40 mm et 80 mm et dans la direction de travail (x), la surface de glissement (5) présentant une extension (s) d'au moins 15 mm, caractérisé en ce qu'entre l' arête antérieure (4) de bouche d'aspiration et la surface de glissement (5) est placé un plateau (11), lequel présente dans la direction de travail (x) une extension (s) comprise entre 2 mm et 5 mm.
  2. Suceur de sol pour un aspirateur selon la revendication 1, caractérisé en ce que le segment d'arc de cercle (6) présente un rayon de courbure (r) compris entre 60 mm et 70 mm, notamment d'environ 65 mm.
  3. Suceur de sol pour un aspirateur selon la revendication 1 ou 2, caractérisé en ce que la surface de glissement (5) présente dans la direction de travail (x) une extension (s) d'au moins 20 mm, notamment d'environ 22 mm.
  4. Suceur de sol pour un aspirateur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que sur l'extrémité (8) antérieure de la surface de glissement (5) dans la direction de travail (x), il existe une différence de hauteur (h) d'au moins 2,5 mm par rapport à l'arête antérieure (4) de bouche d'aspiration.
  5. Suceur de sol pour un aspirateur selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'à l'intérieur de la surface de glissement (5) est placé un capteur de fils (10).
  6. Suceur de sol pour un aspirateur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la surface de glissement (5) comporte exclusivement une face inférieure en forme d'arc de cercle, dans la coupe longitudinale.
  7. Suceur de sol pour un aspirateur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que sur son extrémité (7) antérieure opposée à l'arête antérieure (4) de bouche d'aspiration, la surface de glissement (5) comporte une zone linéaire (12) dans la coupe longitudinale.
EP18200437.4A 2018-10-15 2018-10-15 Buse de sol pour un aspirateur Active EP3639715B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18200437.4A EP3639715B1 (fr) 2018-10-15 2018-10-15 Buse de sol pour un aspirateur
CN201910855321.2A CN111035309B (zh) 2018-10-15 2019-09-11 吸尘器地面喷嘴

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18200437.4A EP3639715B1 (fr) 2018-10-15 2018-10-15 Buse de sol pour un aspirateur

Publications (2)

Publication Number Publication Date
EP3639715A1 EP3639715A1 (fr) 2020-04-22
EP3639715B1 true EP3639715B1 (fr) 2023-04-19

Family

ID=63862023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18200437.4A Active EP3639715B1 (fr) 2018-10-15 2018-10-15 Buse de sol pour un aspirateur

Country Status (2)

Country Link
EP (1) EP3639715B1 (fr)
CN (1) CN111035309B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3138289A1 (fr) * 2022-07-29 2024-02-02 Seb S.A. Tête d’aspiration comprenant une semelle équipée d’une surface de glissement avant courbée

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913957Y2 (ja) * 1978-09-08 1984-04-24 東芝テック株式会社 電気掃除機の吸込具
DE4243244C2 (de) * 1992-12-19 1999-11-04 Miele & Cie Mit Laufrädern versehene Bodendüse für Staubsauger
FR2965165B1 (fr) * 2010-09-24 2013-07-12 Seb Sa Regles de grattage de suceur d'aspirateur
DE102015101019A1 (de) * 2015-01-23 2016-07-28 Wessel-Werk Gmbh Gleitsohle aus Kunststoff für eine Staubsaugerdüse
EP3257417B1 (fr) * 2016-06-14 2023-06-14 Wessel-Werk GmbH Buse d'aspirateur
EP3500145B1 (fr) * 2016-08-22 2021-10-06 Alfred Kärcher SE & Co. KG Suceur pour un aspirateur, procédé d'aspiration de surfaces textiles et aspirateur
GB2559994A (en) * 2017-02-23 2018-08-29 Tti Macao Commercial Offshore Ltd An accessory tool for a surface cleaning apparatus

Also Published As

Publication number Publication date
EP3639715A1 (fr) 2020-04-22
CN111035309B (zh) 2022-09-06
CN111035309A (zh) 2020-04-21

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