EP3760091B1 - Semelle de crosse, buse d'aspirateur et aspirateur - Google Patents

Semelle de crosse, buse d'aspirateur et aspirateur Download PDF

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Publication number
EP3760091B1
EP3760091B1 EP20177934.5A EP20177934A EP3760091B1 EP 3760091 B1 EP3760091 B1 EP 3760091B1 EP 20177934 A EP20177934 A EP 20177934A EP 3760091 B1 EP3760091 B1 EP 3760091B1
Authority
EP
European Patent Office
Prior art keywords
suction mouth
vacuum cleaner
edge
sliding base
suction
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
EP20177934.5A
Other languages
German (de)
English (en)
Other versions
EP3760091A1 (fr
Inventor
Martin Behrenswerth
Markus Baxhenrich
Willi Geser
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
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3760091A1 publication Critical patent/EP3760091A1/fr
Application granted granted Critical
Publication of EP3760091B1 publication Critical patent/EP3760091B1/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

Definitions

  • the invention relates to a soleplate, a vacuum cleaner nozzle and a vacuum cleaner.
  • a soleplate for a vacuum cleaner nozzle is from EP 3 047 775 B1 known.
  • the soleplate described there has a suction mouth formed on its underside, which is delimited by a front and a rear suction mouth edge, a sliding bevel in the working direction in front of the suction mouth, an inclined sliding surface in the working direction behind the suction mouth and a suction opening opening into the suction mouth.
  • a horizontal plateau is arranged between the front slide-on bevel and the front edge of the suction mouth, which plateau extends at the level of the front edge of the suction mouth over the entire length of the front edge of the suction mouth, parallel thereto.
  • the slide-on slope has an incline of between 5° and 7° or is designed as a crowned surface.
  • the design of the suction mouth is only designed for one application. Dust is removed from the subsurface or carpet, but not from hard floors or cracks with joints.
  • the EP 3 494 852 A1 and the DE 10 2016 101051 A1 1 disclose a sliding base for a vacuum cleaner nozzle with a suction mouth which is delimited by a front and a rear edge of the suction mouth.
  • An inclined sliding surface is arranged behind the suction mouth in the working direction, with a horizontal plateau being arranged between the inclined sliding surface and the rear edge of the suction mouth.
  • the U.S. 2019 / 174983 A1 discloses a sliding base for a vacuum cleaner nozzle on the sliding surfaces of which air guiding elements are arranged, the air guiding elements protruding from the sliding surface in the direction of a floor surface to be treated.
  • the GB 2 214 787 A discloses a sliding soleplate for a vacuum cleaner nozzle with an inclined sliding surface behind a suction mouth, the sliding surface being arranged between a sealing lip and a horizontal plateau.
  • the invention therefore addresses the problem of providing a soleplate, a vacuum cleaner nozzle and a vacuum cleaner which are designed to remove dust both from a carpet and also from dirt on a hard floor with cracks and/or gaps.
  • the advantages that can be achieved with the invention consist, in addition to a low sliding resistance, in the good suction properties when using the sliding soleplate in a vacuum cleaner.
  • the suction mouth edges seal the suction mouth on the bottom side when in use, so that an efficient negative pressure can be built up. Therefore, by means of the soleplate, dust and/or dirt can be efficiently removed both from a carpet and from a hard floor with cracks and/or gaps. At the same time, if the negative pressure is too high, sliding forces ( ⁇ 30N) are not exceeded.
  • the front edge of the suction mouth extends without interruption over the entire working width of the soleplate and delimits at both ends of the suction mouth an end section of the suction mouth designed for edge suction.
  • Information on direction and position relates to an operational working position and direction of the soleplate.
  • the rear edge of the suction mouth extends without interruption over the entire working width of the soleplate and delimits an end section of the suction mouth designed for edge suction at both ends of the suction mouth.
  • the horizontal plateau is arranged, which extends at the level of the rear edge of the suction mouth over the entire length of the rear edge of the suction mouth parallel to the latter.
  • the rear edge of the suction mouth and the horizontal plateau adjoining the rear edge of the suction mouth form a further boundary of the suction mouth. This further boundary extends without interruption over the entire working width of the suction mouth and is also important for the suction power.
  • Both - that is, the front and the rear - suction mouth edges can seal the suction mouth on the bottom side when used, and this allows an efficient negative pressure to build up over the entire working surface of the sliding sole. Furthermore, good suction properties are achieved even with a low air output of the vacuum cleaner having the sliding soleplate.
  • the front edge of the suction mouth and the rear edge of the suction mouth are each designed as a straight edge in a plan view of the sliding soleplate.
  • the horizontal plateau adjoining the rear edge of the suction mouth preferably extends with a constant width parallel to the rear edge of the suction mouth.
  • the end sections of the suction mouth can be open or closed at the end for edge suction.
  • the suction mouth opening is preferably arranged centrally between the two ends of the suction mouth.
  • the horizontal plateau preferably has an approach angle in the range from 30 to 45°, preferably 35 to 40°.
  • the horizontal plateau has a length of 8.50 to 10.50 mm, preferably 9.00 to 10.00 mm.
  • the length and the width of the rear edge of the suction mouth extend perpendicularly or substantially perpendicularly to one another.
  • the width of the rear edge of the suction mouth extends parallel to the working width.
  • the horizontal plateau preferably has a radius in the range of 0.5 to 1.5 millimeters to the suction mouth opening.
  • the approach angle of the horizontal plateau is preferably provided with a further radius in the range of 2.5 to 3.5 millimeters.
  • the height of the horizontal plateau is 0.50 to 1.50 mm, preferably 0.75 to 1.25 mm, higher than the height of the front edge of the suction mouth, based on an operational set-up position of the sliding sole. That is, if the soleplate in their operational set-up position of the soleplate is arranged on the ground, a distance between the horizontal plateau and the ground is 0.5 to 1.5 mm, preferably 0.75 to 1.25 mm, greater than a distance between the front edge of the suction mouth and the ground. In this case, too, the front and rear suction mouth edges delimit the suction mouth, but the suction mouth opening is larger than the suction mouth because the rear suction mouth edge does not rest on the ground when the front suction mouth edge is arranged on the ground.
  • air guide elements are arranged on the slide-on slope, with the air guide elements protruding from the slide-on slope in the direction of a floor surface to be treated, based on an operational working position of the sliding sole.
  • the air guide elements are arranged on the slide-on slope in such a way that the air guide elements form air ducts. These air channels extend essentially parallel to the main direction of movement of the floor nozzle in an intended cleaning operation.
  • the air guide elements have an approximately triangular basic shape.
  • the air guide elements are arranged on the slide-on slope in such a way that the air channels formed taper in the direction of the suction mouth.
  • the air guide elements partially seal the soleplate from the ground in the area of the front edge of the suction nozzle and at the same time allow larger dirt particles to be picked up. In particular, an unintentional displacement of larger dirt particles through a vacuum cleaner nozzle according to the invention during cleaning operation is avoided in this way.
  • the sliding sole preferably also has a sealing lip, which is arranged in such a way that the inclined sliding surface is arranged between the sealing lip and the horizontal plateau.
  • the sealing lip also supports the bottom sealing of the suction mouth. If the distance between the horizontal plateau and the ground is greater than the distance between the front edge of the suction mouth and the ground, the sealing lip is preferably arranged in a predetermined area of the suction mouth opening.
  • the sealing lip is preferably arranged in the rear area of the suction mouth opening.
  • the sealing lip preferably delimits the suction mouth opening.
  • the sealing lip preferably extends without interruption over the entire working width of the soleplate. As a result, the sealing lip has the function of sealing the rear suction mouth and thus sucking in dirt even more efficiently during use. In particular with deep grooves and/or gaps on a hard floor, the suction mouth continues to be optimally sealed by means of the sealing lip.
  • each brush seal is preferably designed as a brush base.
  • Each brush seal is preferably formed from plastic into which trimmings may be woven. More preferably, the brush seal is formed from extruded PP (polypropylene) into which is woven a braid of multifilament yarn.
  • the invention also relates to a vacuum cleaner nozzle which has the sliding sole according to one or more of the embodiments described above.
  • the soleplate ensures efficient dust pick-up by the vacuum cleaner nozzle.
  • the soleplate represents a lower part of the vacuum cleaner nozzle, based on an operational working position of the vacuum cleaner nozzle.
  • the vacuum cleaner nozzle is preferably an electronic vacuum cleaner nozzle.
  • the vacuum cleaner nozzle preferably has at least one brush device.
  • the vacuum cleaner nozzle preferably also has one or more wheels.
  • the invention relates to a vacuum cleaner which has the vacuum cleaner nozzle according to one or more of the embodiments described above.
  • the vacuum cleaner has the sliding soleplate according to one or more of the embodiments described above.
  • the suction mouth and the suction mouth limitation of the soleplate are designed in such a way that an air flow sucked in when the vacuum cleaner is operating flows around the edges of the suction mouth at high air speed, so that dust is loosened from a surface such as a carpet or hard floor and is effectively entrained by the air flow.
  • the vacuum cleaner is preferably designed as a hand-held vacuum cleaner.
  • the term "hand-held” means that the vacuum cleaner is operated manually by the user.
  • the vacuum cleaner is preferably designed as a stick vacuum cleaner, which is also referred to as a stick vacuum cleaner or stick vacuum cleaner.
  • the vacuum cleaner is preferably a cordless vacuum cleaner. That is, the vacuum cleaner has an accumulator and is designed to be operated using the accumulator as a power source.
  • the vacuum cleaner is preferably designed as a cyclone vacuum cleaner.
  • the soleplate has a suction mouth 1 formed on its underside, which is delimited by a front suction mouth edge 2 and a rear suction mouth edge 2 .
  • Information on direction and position relates to an operational working position and direction of the soleplate.
  • the soleplate is shown in the operational working position, in which it is arranged on a base 9 .
  • the soleplate also has a sliding bevel 4 in front of the suction mouth 1 in the working direction and an inclined sliding surface 5 behind the suction mouth 1 in the working direction.
  • the working direction is the main direction in which the soleplate is to be moved by a user when it is used.
  • the soleplate also has a suction mouth opening 6 opening into the suction mouth 1 .
  • a horizontal plateau 8 is arranged between the inclined sliding surface 5 and the rear suction mouth edge 3, which extends at the level of the rear suction mouth edge 2 over the entire width (not shown) of the rear suction mouth edge 3 parallel thereto.
  • the horizontal plateau 8 has a length L of at least 8.5 mm, the length L and the width (not shown) of the rear suction mouth edge 3 being perpendicular or essentially perpendicular to one another and the width (not shown) of the rear suction mouth edge 3 parallel to the working width (not shown).
  • the horizontal plateau 8 has an approach angle ⁇ of 36°, the length L of 9.77 mm and a radius R2 to the suction mouth opening 6 .
  • the approach angle of the horizontal plateau 8 is provided with a further radius R4.
  • the width B2 of the front suction mouth edge 2 runs parallel to the working width B1 of the soleplate. Furthermore, the width B2 of the front edge of the suction mouth 2 runs perpendicular to the length of the slide-on slope 7.
  • a height of the horizontal plateau 8 is 1.00 mm higher than the front edge of the suction mouth 2. That is, a distance of the rear plateau 8 to the base 9 is 1, 00 mm greater than a distance between the front edge of the suction mouth 2 and the ground 9.
  • Radius R1 and radius R2 are the same or substantially the same.
  • the further radius R3 and the further radius R4 are the same or substantially the same.
  • the further radius R3 and the further radius R4 are each larger than the radius R1 or the radius R2.
  • FIG. 2 shows a partial cross-sectional view of a vacuum cleaner nozzle according to the invention.
  • the vacuum cleaner nozzle shown has in particular the 1 shown soleplate on that is equipped with a sealing lip 12 in the rear area of the suction mouth opening 6 and a brush seal 14 on the side of the suction mouth 1.
  • the vacuum cleaner nozzle also has a brush device 10 and a wheel 11 .
  • the inclined sliding surface 5 is arranged between the sealing lip 12 and the plateau 8 .
  • FIG 3 shows a perspective partial cross-sectional view of FIG 2 shown vacuum cleaner nozzle. Above the rear plateau 8, the vacuum cleaner nozzle is designed in steps.
  • FIG 4 shows another perspective partial cross-sectional view of FIG 2 shown vacuum cleaner nozzle.
  • the sealing lip 12 is arranged at a distance from the inclined sliding surface 5 .
  • figure 5 shows a plan view of the in 2 shown vacuum cleaner nozzle. What is shown is a plan view of an underside of the vacuum cleaner nozzle, in particular of the soleplate.
  • the front suction mouth edge 2 and the rear suction mouth edge 3 are each designed as a straight edge in plan view.
  • the suction mouth opening 6 is formed with a rectangular base.
  • the brush device 10 is arranged in the suction mouth opening 6 .
  • the front suction mouth edge 2 extends without interruption over the entire working width B1 of the soleplate and is limited at both ends of the suction mouth 1 to an end section of the suction mouth 1 designed for edge suction.
  • Seven air guide elements 7 are arranged on the slide-on slope 4 and are arranged on the slide-on slope 4 at equal distances from one another.
  • the air guide elements 7 have an approximately triangular basic shape and protrude from the slide-on slope 4 in the direction of the floor surface.
  • the air guide elements 7 protrude from the slide-on slope 4 in such a way that the air guide elements 7 form a front horizontal plateau at the level of the front suction mouth edge 2 , which is only interrupted by the air channels 16 between the air guide elements 7 .
  • the rear suction mouth edge 3 extends without interruption over the entire working width B1 of the soleplate and is limited at both ends of the suction mouth 1 to an end section of the suction mouth 1 designed for edge suction.
  • a horizontal plateau 8 is arranged between the inclined sliding surface 5 and the rear suction mouth edge 3, which extends over the entire width B3 of the rear suction mouth edge 3 parallel to the latter.
  • the length L of the horizontal plateau 8 extends perpendicularly to the width B1, B2 or B3.
  • Brush seals 14 are arranged laterally to the suction mouth 1 and each extend parallel to the length L in their extension direction.
  • the sealing lip 12 extends without interruption over the entire working width B1 of the soleplate.
  • FIG 6 shows another perspective partial cross-sectional view of FIG 2 shown vacuum cleaner nozzle.
  • the brush device 10 is designed as a rotating brush roller.
  • FIG 7 shows another cross-sectional view of FIG 2 shown vacuum cleaner nozzle.
  • the brush seal 14 is omitted for clarity. This makes it easier to see that the horizontal plateau 8 is 1.00 mm higher than the front edge of the suction mouth 2.
  • FIG. 8 shows another partial cross-sectional view of in 2 shown vacuum cleaner nozzle.
  • the front suction mouth edge 2 and the rear suction mouth edge 3 delimit the suction mouth 1.
  • the sealing lip 12 and the front suction mouth edge 2 delimit the suction mouth opening 6.
  • the sealing lip 12 seals the rear suction mouth 3.

Landscapes

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

Claims (10)

  1. Semelle de glissement pour buse d'aspirateur, présentant
    - une bouche d'aspiration (1) formée sur sa face inférieure et délimitée par un bord avant et un bord arrière de bouche d'aspiration (2, 3),
    - une pente coulissante (4) dans la direction de travail devant la bouche d'aspiration (1),
    - une surface de glissement inclinée (5) dans la direction de travail derrière la bouche d'aspiration (1) et
    - une ouverture de bouche d'aspiration (6) débouchant dans la bouche d'aspiration (1),
    dans laquelle le bord avant de bouche d'aspiration (2) s'étend sans interruption sur toute la largeur de travail (B1) de la semelle de glissement et délimite une section d'extrémité de la bouche d'aspiration (1) conçue pour l'aspiration périphérique aux deux extrémités de la bouche d'aspiration (1),
    dans laquelle le bord arrière de bouche d'aspiration (3) s'étend sans interruption sur toute la largeur de travail (B1) de la semelle de glissement et délimite une section d'extrémité de la bouche d'aspiration (1) conçue pour l'aspiration périphérique aux deux extrémités de la bouche d'aspiration (1), et
    dans laquelle un plateau horizontal (8) est disposé entre la surface de glissement inclinée (5) et le bord arrière de bouche d'aspiration (3), lequel plateau horizontal s'étend sur le niveau du bord arrière de bouche d'aspiration (2) sur toute la largeur (B3) du bord arrière de bouche d'aspiration (3) et parallèlement à celui-ci, et présente une longueur (L) d'au moins 8,5 mm, la longueur (L) et la largeur (B3) du bord arrière de bouche d'aspiration (3) étant perpendiculaires ou sensiblement perpendiculaires l'une à l'autre et la largeur (B3) du bord arrière de bouche d'aspiration (3) s'étendant parallèlement à la largeur de travail (B1), caractérisée en ce
    qu'une hauteur du plateau horizontal (8) est supérieure de 0,5 à 1,5 mm à la hauteur du bord avant de bouche d'aspiration (2), par rapport à une position de travail opérationnelle de la semelle de glissement.
  2. Semelle de glissement selon la revendication 1, caractérisée en ce que le bord avant de bouche d'aspiration (2) présente un angle de pas (a) dans la plage de 5 à 20°.
  3. Semelle de glissement selon la revendication 1 ou 2, caractérisée en ce que le plateau horizontal (8) présente un angle de pas (β) dans la plage de 30 à 45° et/ou une longueur (L) dans la plage de 8,5 à 10,5 mm.
  4. Semelle de glissement selon l'une des revendications précédentes, caractérisée en ce que des éléments de guidage d'air (7) sont disposés sur la pente coulissante (4), les éléments de guidage d'air (7) faisant saillie de la pente coulissante (4) en direction d'une surface de sol à traiter, par rapport à une position de travail opérationnelle de la semelle de glissement.
  5. Semelle de glissement selon l'une des revendications précédentes, caractérisée en ce que le plateau horizontal (8) présente un rayon (R2) dans la plage de 0,5 à 1,5 millimètres par rapport à l'ouverture de bouche d'aspiration (6).
  6. Semelle de glissement selon l'une des revendications précédentes, caractérisée en ce que l'angle de pas du plateau horizontal (8) est pourvu d'un autre rayon (R4) dans la plage de 2,5 à 3,5 millimètres.
  7. Semelle de glissement selon l'une des revendications précédentes, caractérisée par une lèvre d'étanchéité (12) qui est disposée de telle manière que la surface de glissement inclinée (5) est disposée entre la lèvre d'étanchéité (12) et le plateau horizontal (8).
  8. Semelle de glissement selon l'une des revendications précédentes, caractérisée par un ou plusieurs joints à brosse (14) disposés latéralement par rapport à la bouche d'aspiration (1) dans la direction de travail.
  9. Buse d'aspirateur, présentant une semelle de glissement selon l'une des revendications précédentes.
  10. Aspirateur, présentant la buse d'aspirateur selon la revendication 9.
EP20177934.5A 2019-07-02 2020-06-03 Semelle de crosse, buse d'aspirateur et aspirateur Active EP3760091B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019117777.4A DE102019117777A1 (de) 2019-07-02 2019-07-02 Gleitsohle, Staubsaugerdüse und Staubsauger

Publications (2)

Publication Number Publication Date
EP3760091A1 EP3760091A1 (fr) 2021-01-06
EP3760091B1 true EP3760091B1 (fr) 2022-09-14

Family

ID=70977367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20177934.5A Active EP3760091B1 (fr) 2019-07-02 2020-06-03 Semelle de crosse, buse d'aspirateur et aspirateur

Country Status (2)

Country Link
EP (1) EP3760091B1 (fr)
DE (1) DE102019117777A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH674452A5 (fr) * 1988-02-06 1990-06-15 Wessel Werk Gmbh
DE102015101019A1 (de) 2015-01-23 2016-07-28 Wessel-Werk Gmbh Gleitsohle aus Kunststoff für eine Staubsaugerdüse
DE102016101051A1 (de) * 2016-01-21 2017-07-27 Vorwerk & Co. Interholding Gmbh Saugdüse für ein Saugreinigungsgerät
US20190174983A1 (en) * 2017-12-11 2019-06-13 New Ermes Europe S.R.L. Accessory for a vacuum cleaner suction head for collecting large debris
US11224319B2 (en) * 2017-12-11 2022-01-18 New Ermes Europe S.R.L. Base plate for a vacuum cleaner suction head for the suction of fine dust and large debris

Also Published As

Publication number Publication date
DE102019117777A1 (de) 2021-01-07
EP3760091A1 (fr) 2021-01-06

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