EP1488727B1 - Suction nozzle of a vacuum cleaner - Google Patents

Suction nozzle of a vacuum cleaner Download PDF

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Publication number
EP1488727B1
EP1488727B1 EP04356094A EP04356094A EP1488727B1 EP 1488727 B1 EP1488727 B1 EP 1488727B1 EP 04356094 A EP04356094 A EP 04356094A EP 04356094 A EP04356094 A EP 04356094A EP 1488727 B1 EP1488727 B1 EP 1488727B1
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EP
European Patent Office
Prior art keywords
nozzle attachment
vacuum cleaner
nozzle
suction
blades
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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.)
Expired - Lifetime
Application number
EP04356094A
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German (de)
French (fr)
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EP1488727A1 (en
Inventor
Alain Soen
Fabien David
Isabelle Soudet
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SEB SA
Original Assignee
SEB SA
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    • 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
    • A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids
    • 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

Definitions

  • the present invention relates to a dust suction nozzle, and more particularly to an improvement of the waste collection efficiency.
  • Vacuum suckers are waste collection devices that contaminate the surface to be cleaned. They are therefore the object of many improvements aimed in particular to improve such collection.
  • the document GB 895,613 has in particular a nozzle having a flexible scraping rule having two lips articulated around a fastener and intended, on the one hand to collect the waste, and on the other hand to close the half-channel located at the back of the rule in relation to the direction of travel to improve the collection of waste.
  • US Patent 4638527 shows a triangular dust suction nozzle according to the preamble of the independent claim.
  • suckers proposing only one scraper rule, have a relatively low action by the sole solicitation of the soil.
  • a rule can impede the flow of waste in the channel.
  • the present invention aims to remedy these problems while having a nozzle of simple and compact shape.
  • the present invention is attained by means of a vacuum nozzle of substantially triangular shape, in particular having two lateral edges forming the tip of the nozzle, said nozzle being open towards the surface to be cleaned by at least two suction channels arranged respectively along each of the two side edges forming the tip of the nozzle, characterized in that the underside of said nozzle has scraper blades parallel to each other extending from each side edge towards the other side edge, in the suction channel corresponding.
  • the length of each blade in the suction channel is less than half the width of the channel at this level.
  • each blade has a base resting on the upper face of the nozzle and extending to the next blade.
  • Such an architecture allows, by the presence of a base, to avoid areas between the blades too deep where some waste could hang.
  • the upper face of the bases has a slope oriented towards the suction channel, to guide the waste ejected by the scraping effect of the blades to the suction channel, thus avoiding any waste retention zone.
  • the vacuum nozzle is isosceles-shaped having a rear edge joining the side edges, the blades then being substantially parallel to said rear edge.
  • the isosceles shape and the "closure" of the nozzle by a rear edge facilitate the use and passage of the nozzle by the symmetry provided, the rear edge also to increase the cleaning surface, for better waste collection.
  • the two channels arranged along the lateral edges meet in the front part of the nozzle, making it possible to provide a large suction zone towards the front of the nozzle.
  • the front edge of the nozzle has at least one front orifice intended to provide suction in a direction substantially parallel to the surface to be cleaned, said front suction orifice being connected to one of the channels of aspiration.
  • the present invention relates to a vacuum nozzle 1.
  • a vacuum nozzle 1 has a connection tube 2 connecting to a vacuum cleaner body, not shown, including a motor-fan capable of creating an air intake flow.
  • the connecting tube 2 opens at the sole 11 of the nozzle in contact with the soil 4 to be cleaned, via a connecting conduit 3.
  • This conduit opens on the suction channels.
  • These channels are generally configured according to the shape of the nozzle, in order to optimize the suction efficiency.
  • the suction channels as represented by the dots 10, extend in part along the two edges 5, 6 forming the tip of the nozzle, as well as in said tip of the nozzle after joining in the central part of the nozzle.
  • the edges 5, 6 are connected by a rear edge 9.
  • the angular zone forming the tip of the nozzle comprises a front orifice 7 intended to provide suction in a direction substantially parallel to the surface to be cleaned.
  • the nozzle has retractable brushes actuated by a pedal 8 pivoting.
  • This pedal 8 is accessible at the hood 12 of the nozzle.
  • the latter in this exemplary embodiment, has essentially only aesthetic functions and environmental protection.
  • the suction channels are closed on the one hand by an internal structure made in part during the manufacture by molding of the sole, such as the parts of the suction channels extending along the edges and opening through the opening 7, but also by an upper part 14 which, according to the embodiment, is a viewing area made by making transparent the triangular piece attached to the sole.
  • this viewing area may cover a larger field than that of the suction channel, in order to adjust the target of the waste to be extracted from the ground.
  • the viewing area has a magnifying effect, having a convex shape.
  • the waste under the viewing area is magnified, improving the visualization of the surface to be cleaned.
  • the Figures 2 and 4 present the nozzle seen from below.
  • the sole 11 of the nozzle has several suction channels: a channel 19 substantially parallel to the edge 6 of the nozzle, a channel 20 substantially parallel to the edge 5 of the nozzle. These channels meet in the central region 21 of the nozzle.
  • the channels 19 and 20 have front openings, that is to say in the vertical flanges of the sole, respectively 36 and 35, allowing a lateral suction substantially parallel to the surface to be cleaned.
  • the triangular shape is completed, at the rear of the nozzle, by a solid portion 40 having two locations 42 means promoting the displacement of the nozzle, which may be either PTFE-type pads or wheels.
  • the nozzle also comprises a blade 23 extending in the region 21, from the edge 5 of the nozzle to the edge 6, thus defining a front channel 18 and a rear channel 22, the front channel 18 opening at the tip of the nozzle through the opening 7 front.
  • This blade 23 has a zone 24 where is disposed a pull-wire fabric as it is known per se.
  • This blade 23 connects the edge 5 to the edge 6 as a bridge, providing a space between the face opposite the zone 24 and the upper part 14. This blade is preferably parallel to the rear edge 9 of the nozzle.
  • a second zone 28 carrying a pull-out fabric may be provided on a border of the channel 22, symmetrically to the zone 24 carrying the pull-son.
  • the channels 19 and 20 each have scraping blades 46 and 45 respectively extending from the edge 6 and the edge 5 towards the other edge in the suction channel.
  • these blades are fixed and issuing from the bottom plate of the nozzle, extending substantially parallel to the rear edge 9 over a distance close to half the width of the channel.
  • these blades are not or are not prominent relative to the bottom plate of the nozzle.
  • each blade is shallow and limited by a base defined for each blade, each base extending to the next blade.
  • the blade 46 has a base 47 extending to the blade in front of it.
  • the depth of the suction channel being progressively variable along the side edges of the nozzle, the bases of the blades are then of different height.
  • each base may advantageously have a slope oriented towards the suction channel, in order to limit as much as possible the areas of possible jamming of the waste.
  • the sole 11 also has locations 25, 26 (cf. fig.3 ) for retractable brushes 55, 56, 57 (cf. Fig. 2 and 4 ), these brushes advantageously bordering the suction channels.
  • the nozzle In operation, the nozzle is moved on the floor 4 to be cleaned, preferably in a direction perpendicular to the rear edge 9, the user directing the nozzle to the areas to be cleaned by using, even unconsciously, the tip of the nozzle as a guide.
  • the tip of the nozzle By the presence of the front opening 7 in the tip of the nozzle, the largest waste can be sucked without the need to lift the nozzle to collect them.
  • this waste passes over the blade 23 carrying the pull-son, in the direction F. They are then directed to the body of the vacuum cleaner leaving the nozzle through the connecting pipe 3.
  • the zone visualization 14 can optionally control that some waste does not remain blocked at the blade.
  • the blades 45, 46 allow efficient solicitation of the soil fibers, including carpet-type floors, by removing, during the passage of the nozzle, the fibers of the carpet so that the suction is performed in the heart of the fibers.
  • the fibers of the carpet after their solicitation by one of the blades, are again requested by the next blade before said fiber has recovered in its initial position, which allows a longer action and in depth of the suction on the carpet to be cleaned.
  • the son and fibers remaining on the ground are solicited by the pull-son of the blade 23 which has the advantage of being bordered by the two channels 18 and 22 suction.
  • the solicitation of the self by the pull-son will, in both cases, immediately be followed, in the movement of the squeegee, by an aspiration.
  • the blades can be configured according to the blade 23 carrying the tear wire, the blades then extending over the entire width of the channel, by providing a space above them, such as a bridge, allowing the flow of air and waste, especially larger ones, to move freely over each blade. The total scraping length would be increased, which would increase the suction efficiency.
  • the blades are preferably parallel to the rear edge of the nozzle, so as to bias the fibers by a blade perpendicular to the direction of movement of the nozzle.
  • the efficiency is slightly improved when the blades have a certain inclination relative to the rear edge, for example about 20 °.
  • An explanation could be the stressing mode of the fibers which is more complex, and then more effective when the blades are not perpendicular to the direction of displacement of the nozzle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Manipulator (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Liquid Crystal (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The nozzle has two lateral sides (5, 6) forming a suction point and is open towards a surface that is to be cleaned by two suction channels (19, 20). The suction channels are arranged respectively along the length of each lateral side. Internal side of the nozzle has parallel scraper blades (45, 46), each extending from corresponding lateral side towards the other lateral side in the relative suction channel.

Description

La présente invention concerne un suceur d'aspirateur à poussières, et plus particulièrement une amélioration de l'efficacité de collecte des déchets.The present invention relates to a dust suction nozzle, and more particularly to an improvement of the waste collection efficiency.

Les suceurs d'aspirateur constituent des organes de collecte des déchets souillant la surface à nettoyer. Ils font donc l'objet de nombreux perfectionnements visant en particulier à améliorer une telle collecte.Vacuum suckers are waste collection devices that contaminate the surface to be cleaned. They are therefore the object of many improvements aimed in particular to improve such collection.

Il est ainsi connu de disposer des règles de raclage au niveau de la face inférieure du suceur, afin de solliciter la surface à nettoyer. Le document GB 895,613 présente notamment un suceur comportant une règle de raclage souple en présentant deux lèvres articulées autour d'une attache et destinées, d'une part à rassembler les déchets, et d'autre part à obturer le demi-canal situé à l'arrière de la règle par rapport au sens de déplacement pour ainsi améliorer la collecte des déchets.It is thus known to have scraper rules at the underside of the nozzle, to solicit the surface to be cleaned. The document GB 895,613 has in particular a nozzle having a flexible scraping rule having two lips articulated around a fastener and intended, on the one hand to collect the waste, and on the other hand to close the half-channel located at the back of the rule in relation to the direction of travel to improve the collection of waste.

On connaît également, par le document US 5,539,953 , un suceur de forme rectangulaire comprenant un canal d'aspiration ouvert vers la surface à nettoyer et comportant, au milieu de ce canal, une lame rigide de raclage permettant d'écarter les poils de la surface à traiter de type moquette afin d'accéder plus facilement aux poussières incrustées dans les fibres.It is also known from the document US5,539,953 , a rectangular shaped nozzle comprising a suction channel open to the surface to be cleaned and comprising, in the middle of this channel, a rigid scraping blade to separate the hairs from the surface to be treated carpet type to access more easily to dust embedded in the fibers.

US-A-4638527 montre un suceur d'aspirateur à poussières triangulaire selon le préambule de la revendication indépendante. US Patent 4638527 shows a triangular dust suction nozzle according to the preamble of the independent claim.

Toutefois, de tels suceurs, en ne proposant qu'une seule règle de raclage, présentent une action relativement faible par l'unique sollicitation du sol. De plus, en étant disposée dans le flux d'aspiration, une telle règle peut entraver la circulation des déchets dans le canal.However, such suckers, proposing only one scraper rule, have a relatively low action by the sole solicitation of the soil. In addition, being disposed in the suction flow, such a rule can impede the flow of waste in the channel.

La présente invention vise à remédier à ces problèmes tout en présentant un suceur de forme simple et compacte.The present invention aims to remedy these problems while having a nozzle of simple and compact shape.

La présente invention est atteinte à l'aide d'un suceur d'aspirateur de forme sensiblement triangulaire en présentant notamment deux bords latéraux formant la pointe du suceur, ledit suceur étant ouvert vers la surface à nettoyer par au moins deux canaux d'aspiration agencés respectivement le long de chacun des deux bords latéraux formant la pointe du suceur, caractérisé en ce que la face inférieure dudit suceur comporte des lames de raclage parallèles entre elles s'étendant de chaque bord latéral en direction de l'autre bord latéral, dans le canal d'aspiration correspondant.The present invention is attained by means of a vacuum nozzle of substantially triangular shape, in particular having two lateral edges forming the tip of the nozzle, said nozzle being open towards the surface to be cleaned by at least two suction channels arranged respectively along each of the two side edges forming the tip of the nozzle, characterized in that the underside of said nozzle has scraper blades parallel to each other extending from each side edge towards the other side edge, in the suction channel corresponding.

La multiplication du nombre de lames de raclage au niveau de chaque canal d'aspiration permet d'augmenter le nombre de sollicitations du sol à traiter, les sollicitations successives ayant tendance à amener les déchets les plus profondément enfouis dans le sol à traiter, par exemple de type moquette, jusqu'à la surface où ils en sont extraits. L'efficacité d'un tel suceur sur des sols de type moquette est donc sensiblement améliorée.The multiplication of the number of scraping blades at each suction channel makes it possible to increase the number of stresses of the soil to be treated, the successive stresses tending to bring the waste most deeply buried in the soil to be treated, for example carpet type, to the surface where they are extracted. The effectiveness of such a nozzle on carpet-type floors is significantly improved.

Cette efficacité est d'autant plus visible lorsque les lames sont régulièrement réparties sur au moins la moitié de la longueur de chaque bord latéral, ce qui permet d'avoir une durée de sollicitation du sol conséquente.This efficiency is even more visible when the blades are evenly distributed over at least half the length of each side edge, which allows for a duration of solicitation of the consequent soil.

Il est possible d'envisager, avec une telle configuration, un recouvrement de chaque lame de raclage selon une projection perpendiculaire au sens de déplacement, ce qui permet d'accroître l'efficacité du suceur.It is possible to envisage, with such a configuration, an overlap of each scraper blade in a projection perpendicular to the direction of movement, which increases the efficiency of the nozzle.

Selon un mode préféré de réalisation, la longueur de chaque lame dans le canal d'aspiration est inférieure à la moitié de la largeur du canal à ce niveau.According to a preferred embodiment, the length of each blade in the suction channel is less than half the width of the channel at this level.

Une telle disposition permet de garder une partie du canal d'aspiration ouvert vers la surface à nettoyer libre de toute lame de raclage, facilitant de la sorte l'aspiration des gros déchets.Such an arrangement makes it possible to keep part of the open suction channel towards the surface to be cleaned free of any scraping blade, thus facilitating the suction of large waste.

Avantageusement, chaque lame comporte une embase en appui sur la face supérieure du suceur et s'étendant jusqu'à la lame suivante.Advantageously, each blade has a base resting on the upper face of the nozzle and extending to the next blade.

Une telle architecture permet, par la présence d'une embase, d'éviter des zones entre les lames trop profondes où certains déchets risqueraient de se bloquer.Such an architecture allows, by the presence of a base, to avoid areas between the blades too deep where some waste could hang.

Avantageusement, la face supérieure des embases présente une déclivité orientée vers le canal d'aspiration, permettant de guider les déchets éjectés par l'effet de raclage des lames vers le canal d'aspiration, évitant ainsi toute zone de rétention des déchets.Advantageously, the upper face of the bases has a slope oriented towards the suction channel, to guide the waste ejected by the scraping effect of the blades to the suction channel, thus avoiding any waste retention zone.

Dans une configuration préférée de réalisation de l'invention, le suceur d'aspirateur est de forme isocèle en présentant un bord arrière joignant les bords latéraux, les lames étant alors sensiblement parallèles audit bord arrière.In a preferred embodiment of the invention, the vacuum nozzle is isosceles-shaped having a rear edge joining the side edges, the blades then being substantially parallel to said rear edge.

La forme isocèle et la « fermeture » du suceur par un bord arrière facilitent l'utilisation et le passage du suceur par la symétrie apportée, le bord arrière permettant également d'augmenter la surface de nettoyage, pour une meilleure collecte des déchets.The isosceles shape and the "closure" of the nozzle by a rear edge facilitate the use and passage of the nozzle by the symmetry provided, the rear edge also to increase the cleaning surface, for better waste collection.

Avantageusement, les deux canaux agencés le long des bords latéraux se rejoignent dans la partie avant du suceur, permettant de ménager une large zone d'aspiration vers l'avant du suceur.Advantageously, the two channels arranged along the lateral edges meet in the front part of the nozzle, making it possible to provide a large suction zone towards the front of the nozzle.

Selon une configuration particulière de réalisation, le rebord avant du suceur présente au moins un orifice frontal destiné à assurer une aspiration dans une direction sensiblement parallèle à la surface à nettoyer, ledit orifice frontal d'aspiration étant relié à l'un des canaux d'aspiration.According to a particular embodiment, the front edge of the nozzle has at least one front orifice intended to provide suction in a direction substantially parallel to the surface to be cleaned, said front suction orifice being connected to one of the channels of aspiration.

L'un des avantages de cette structure est, non seulement de pouvoir physiquement disposer le suceur dans les coins des pièces à nettoyer, mais également d'aspirer véritablement au niveau de la pointe et même légèrement en avant de cette pointe, par l'ouverture frontale ainsi ménagée. Une telle facilité d'utilisation évite principalement le recours à de petits accessoires de nettoyage que l'on dispose à la place du suceur pour accéder aux endroits étroits tels notamment les coins et recoins.One of the advantages of this structure is not only to physically have the nozzle in the corners of the parts to be cleaned, but also to suck really at the tip and even slightly ahead of this tip, through the opening frontal thus arranged. Such ease of use primarily avoids the use of small cleaning accessories that are available instead of the nozzle to access narrow places such as nooks and crannies.

Par ailleurs, il s'est avéré très pratique et facile de diriger la pointe vers les objets à ramasser ou les coins à nettoyer, puisque cette pointe est dans l'axe du tube, donc dans l'axe de la poussée lorsque le suceur est déplacé. L'intérêt est alors de pouvoir viser tout objet en champ libre et non pas uniquement dans les coins.Moreover, it has proved very practical and easy to direct the tip towards the objects to pick up or corners to clean, since this tip is in the axis of the tube, so in the axis of the thrust when the nozzle is moved. The interest is then to be able to target any object in free field and not only in the corners.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre, prise à titre d'exemple non limitatif, en référence aux figures annexées dans lesquelles :

  • la figure 1 présente, dans une vue schématique de dessus, un suceur conforme à la présente invention,
  • la figure 2 présente une vue de dessous de certaines parties constitutives d'un suceur selon l'invention,
  • les figures 3 et 4 représentent, en perspective, respectivement une vue de dessus et de dessous de certaines parties constitutives d'un suceur selon l'invention.
Other features and advantages of the invention will emerge from the description which follows, taken by way of non-limiting example, with reference to the appended figures in which:
  • the figure 1 presents, in a schematic view from above, a nozzle according to the present invention,
  • the figure 2 shows a view from below of certain constituent parts of a nozzle according to the invention,
  • the figures 3 and 4 represent, in perspective, respectively a view from above and from below of certain constituent parts of a nozzle according to the invention.

La présente invention concerne un suceur 1 d'aspirateur. Un tel suceur possède un tube de liaison 2 de raccordement à un corps d'aspirateur, non représenté, possédant notamment un moto-ventilateur susceptible de créer un flux d'aspiration d'air.The present invention relates to a vacuum nozzle 1. Such a nozzle has a connection tube 2 connecting to a vacuum cleaner body, not shown, including a motor-fan capable of creating an air intake flow.

Le tube de liaison 2 débouche au niveau de la semelle 11 du suceur en contact avec le sol 4 à nettoyer, par l'intermédiaire d'un conduit de raccordement 3. Ce conduit débouche sur les canaux d'aspiration. Ces canaux sont généralement configurés selon la forme du suceur, afin d'optimiser l'efficacité d'aspiration. Dans l'exemple présenté où le suceur est de forme triangulaire, les canaux d'aspiration, tels que représentés par les pointillés 10, s'étendent en partie le long des deux bords 5, 6 formant la pointe du suceur, ainsi que dans ladite pointe du suceur après s'être rejoints dans la partie centrale du suceur. Les bords 5, 6 sont reliés par un bord arrière 9.The connecting tube 2 opens at the sole 11 of the nozzle in contact with the soil 4 to be cleaned, via a connecting conduit 3. This conduit opens on the suction channels. These channels are generally configured according to the shape of the nozzle, in order to optimize the suction efficiency. In the example presented in which the nozzle is of triangular shape, the suction channels, as represented by the dots 10, extend in part along the two edges 5, 6 forming the tip of the nozzle, as well as in said tip of the nozzle after joining in the central part of the nozzle. The edges 5, 6 are connected by a rear edge 9.

Avantageusement, la zone angulaire formant la pointe du suceur comporte un orifice frontal 7 destiné à assurer une aspiration dans une direction sensiblement parallèle à la surface à nettoyer.Advantageously, the angular zone forming the tip of the nozzle comprises a front orifice 7 intended to provide suction in a direction substantially parallel to the surface to be cleaned.

Par ailleurs, dans la forme de réalisation présentée, le suceur possède des brosses escamotables actionnées par une pédale 8 pivotante. Cette pédale 8 est accessible au niveau du capot 12 du suceur. Ce dernier, dans cet exemple de réalisation, ne présente essentiellement que des fonctions esthétiques et de protection de l'environnement.Moreover, in the embodiment shown, the nozzle has retractable brushes actuated by a pedal 8 pivoting. This pedal 8 is accessible at the hood 12 of the nozzle. The latter, in this exemplary embodiment, has essentially only aesthetic functions and environmental protection.

En effet, les canaux d'aspiration sont fermés, d'une part par une structure interne réalisée en partie lors de la fabrication par moulage de la semelle, telles les parties des canaux d'aspiration s'étendant le long des bords et débouchant par l'ouverture 7, mais également par une pièce supérieure 14 qui, selon l'exemple de réalisation, est une zone de visualisation réalisée en rendant transparente la pièce triangulaire rapportée sur la semelle.Indeed, the suction channels are closed on the one hand by an internal structure made in part during the manufacture by molding of the sole, such as the parts of the suction channels extending along the edges and opening through the opening 7, but also by an upper part 14 which, according to the embodiment, is a viewing area made by making transparent the triangular piece attached to the sole.

Une telle particularité permet de visualiser les déchets 16 sur la surface en cours de nettoyage. Selon la forme du suceur et du ou des canaux d'aspiration, cette zone de visualisation peut couvrir un champ plus important que celui du canal d'aspiration, afin d'ajuster la visée des déchets à extraire du sol.Such a feature allows to view the waste 16 on the surface being cleaned. Depending on the shape of the nozzle and the suction channel or channels, this viewing area may cover a larger field than that of the suction channel, in order to adjust the target of the waste to be extracted from the ground.

Avantageusement, la zone de visualisation possède un effet de loupe, en présentant une forme convexe. Ainsi, les déchets sous la zone de visualisation sont grossis, améliorant ainsi la visualisation de la surface à nettoyer.Advantageously, the viewing area has a magnifying effect, having a convex shape. Thus, the waste under the viewing area is magnified, improving the visualization of the surface to be cleaned.

Les figures 2 et 4 présentent le suceur vu de dessous. Ainsi la semelle 11 du suceur comporte plusieurs canaux d'aspiration : un canal 19 sensiblement parallèle au bord 6 du suceur, un canal 20 sensiblement parallèle au bord 5 du suceur. Ces canaux se rejoignent dans la région centrale 21 du suceur. Les canaux 19 et 20 possèdent des ouvertures frontales, c'est à dire dans les rebords verticaux de la semelle, respectivement 36 et 35, permettant une aspiration latérale sensiblement parallèle à la surface à nettoyer.The Figures 2 and 4 present the nozzle seen from below. Thus the sole 11 of the nozzle has several suction channels: a channel 19 substantially parallel to the edge 6 of the nozzle, a channel 20 substantially parallel to the edge 5 of the nozzle. These channels meet in the central region 21 of the nozzle. The channels 19 and 20 have front openings, that is to say in the vertical flanges of the sole, respectively 36 and 35, allowing a lateral suction substantially parallel to the surface to be cleaned.

La forme triangulaire est complétée, à l'arrière du suceur, par une partie pleine 40 comportant deux emplacements 42 de moyens favorisant le déplacement du suceur, qui peuvent être, soit des patins de type PTFE, soit des roues.The triangular shape is completed, at the rear of the nozzle, by a solid portion 40 having two locations 42 means promoting the displacement of the nozzle, which may be either PTFE-type pads or wheels.

Le suceur comporte par ailleurs une lame 23 s'étendant dans la région 21, du bord 5 du suceur au bord 6, en définissant ainsi un canal avant 18 et un canal arrière 22, le canal avant 18 débouchant à la pointe du suceur par l'ouverture 7 frontale. Cette lame 23 comporte une zone 24 où est disposé un tissu arrache-fils tel qu'il est en soi connu.The nozzle also comprises a blade 23 extending in the region 21, from the edge 5 of the nozzle to the edge 6, thus defining a front channel 18 and a rear channel 22, the front channel 18 opening at the tip of the nozzle through the opening 7 front. This blade 23 has a zone 24 where is disposed a pull-wire fabric as it is known per se.

Cette lame 23 relie le bord 5 au bord 6 tel un pont, en ménageant un espace entre la face opposée à la zone 24 et la pièce supérieure 14. Cette lame est préférentiellement parallèle au bord arrière 9 du suceur.This blade 23 connects the edge 5 to the edge 6 as a bridge, providing a space between the face opposite the zone 24 and the upper part 14. This blade is preferably parallel to the rear edge 9 of the nozzle.

Une seconde zone 28 portant un tissu arrache-fils peut être prévue sur une bordure du canal 22, de façon symétrique à la zone 24 portant l'arrache-fils.A second zone 28 carrying a pull-out fabric may be provided on a border of the channel 22, symmetrically to the zone 24 carrying the pull-son.

Selon l'invention, les canaux 19 et 20 possèdent, chacun, des lames de raclage 46 et 45 s'étendant respectivement depuis le bord 6 et le bord 5 en direction de l'autre bord dans le canal d'aspiration. Selon l'exemple proposé, ces lames sont fixes et issues de la plaque inférieure du suceur en s'étendant sensiblement parallèlement au bord arrière 9 sur une distance voisine de la moitié de la largeur du canal. De préférence, ces lames ne sont pas ou sont peu proéminentes par rapport à la plaque inférieure du suceur.According to the invention, the channels 19 and 20 each have scraping blades 46 and 45 respectively extending from the edge 6 and the edge 5 towards the other edge in the suction channel. According to the proposed example, these blades are fixed and issuing from the bottom plate of the nozzle, extending substantially parallel to the rear edge 9 over a distance close to half the width of the channel. Preferably, these blades are not or are not prominent relative to the bottom plate of the nozzle.

Avantageusement, l'espace entre chaque lame est peu profond et limité par une embase définie pour chaque lame, chaque embase s'étendant jusqu'à la lame suivante. Ainsi la lame 46 présente une embase 47 s'étendant jusqu'à la lame située devant elle. Tel qu'il est bien visible figure 4, la profondeur du canal d'aspiration étant progressivement variable le long des bords latéraux du suceur, les embases des lames sont alors de hauteur différente.Advantageously, the space between each blade is shallow and limited by a base defined for each blade, each base extending to the next blade. Thus the blade 46 has a base 47 extending to the blade in front of it. As it is clearly visible figure 4 , the depth of the suction channel being progressively variable along the side edges of the nozzle, the bases of the blades are then of different height.

La face supérieure 66 de chaque embase peut présenter, avantageusement, une déclivité orientée vers le canal d'aspiration, afin de limiter au maximum les zones de coincement éventuel des déchets.The upper face 66 of each base may advantageously have a slope oriented towards the suction channel, in order to limit as much as possible the areas of possible jamming of the waste.

La semelle 11 comporte également des emplacements 25, 26 (cf. fig.3) pour des brosses escamotables 55, 56, 57 (cf.fig. 2 et 4), ces brosses bordant avantageusement les canaux d'aspiration.The sole 11 also has locations 25, 26 (cf. fig.3 ) for retractable brushes 55, 56, 57 (cf. Fig. 2 and 4 ), these brushes advantageously bordering the suction channels.

En fonctionnement, le suceur est déplacé sur le sol 4 à nettoyer, préférentiellement selon une direction perpendiculaire au bord arrière 9, l'utilisateur dirigeant le suceur vers les zones à nettoyer en se servant, même inconsciemment, de la pointe du suceur comme guide. Par la présence de l'ouverture frontale 7 dans la pointe du suceur, les plus gros déchets peuvent être aspirés sans qu'il soit nécessaire de soulever le suceur pour les collecter.In operation, the nozzle is moved on the floor 4 to be cleaned, preferably in a direction perpendicular to the rear edge 9, the user directing the nozzle to the areas to be cleaned by using, even unconsciously, the tip of the nozzle as a guide. By the presence of the front opening 7 in the tip of the nozzle, the largest waste can be sucked without the need to lift the nozzle to collect them.

Par la suite, ces déchets passent au-dessus de la lame 23 portant l'arrache-fils, selon la direction F. Ils sont ensuite dirigés vers le corps de l'aspirateur en quittant le suceur par le conduit de raccordement 3. La zone de visualisation 14 permet éventuellement de contrôler que certains déchets ne restent pas bloqués au niveau de la lame.Subsequently, this waste passes over the blade 23 carrying the pull-son, in the direction F. They are then directed to the body of the vacuum cleaner leaving the nozzle through the connecting pipe 3. The zone visualization 14 can optionally control that some waste does not remain blocked at the blade.

Les lames 45, 46 permettent une sollicitation efficace des fibres du sol, notamment des sols de type moquette, en écartant, lors du passage du suceur, les fibres de la moquette pour que l'aspiration soit réalisée au coeur des fibres. De plus, par la présence de multiples lames parallèles et successives lors du passage du suceur, les fibres de la moquette, après leur sollicitation par l'une des lames, sont à nouveau sollicitées par la lame suivante avant que ladite fibre ne se soit remise dans sa position initiale, ce qui permet une action plus longue et en profondeur de l'aspiration sur la moquette à nettoyer.The blades 45, 46 allow efficient solicitation of the soil fibers, including carpet-type floors, by removing, during the passage of the nozzle, the fibers of the carpet so that the suction is performed in the heart of the fibers. In addition, by the presence of multiple parallel blades and successive during the passage of the nozzle, the fibers of the carpet, after their solicitation by one of the blades, are again requested by the next blade before said fiber has recovered in its initial position, which allows a longer action and in depth of the suction on the carpet to be cleaned.

Les fils et fibres restant accrochés sur le sol sont sollicités par l'arrache-fils de la lame 23 qui présente l'avantage d'être bordé par les deux canaux 18 et 22 d'aspiration. Ainsi que le suceur soit déplacé vers l'avant ou vers l'arrière, la sollicitation du soi par l'arrache-fils sera, dans ies deux cas, immédiatement suivie, dans le mouvement du suceur, par une aspiration.The son and fibers remaining on the ground are solicited by the pull-son of the blade 23 which has the advantage of being bordered by the two channels 18 and 22 suction. As the squeegee is moved forward or backward, the solicitation of the self by the pull-son will, in both cases, immediately be followed, in the movement of the squeegee, by an aspiration.

La présente invention n'est pas limitée à l'exemple de réalisation présenté. De nombreuses variantes peuvent être envisagées. On peut notamment configurer les lames selon la lame 23 portant l'arrache fil, les lames s'étendant alors sur toute la largeur du canal, en ménageant un espace au dessus d'elles, tel un pont, permettant au flux d'air et aux déchets, notamment les plus gros, de circuler librement au dessus de chaque lame. La longueur de raclage totale serait augmentée, ce qui permettrait d'accroître l'efficacité d'aspiration.The present invention is not limited to the embodiment shown. Many variants can be envisaged. In particular, the blades can be configured according to the blade 23 carrying the tear wire, the blades then extending over the entire width of the channel, by providing a space above them, such as a bridge, allowing the flow of air and waste, especially larger ones, to move freely over each blade. The total scraping length would be increased, which would increase the suction efficiency.

Par ailleurs, les lames sont préférentiellement parallèles au bord arrière du suceur, de telle manière à solliciter les fibres par une lame perpendiculaire au sens de déplacement du suceur. Toutefois, des essais ont montré que l'efficacité est légèrement améliorée lorsque les lames présentent une certaine inclinaison par rapport au bord arrière, par exemple d'environ 20 °. Une explication pourrait être le mode de sollicitation des fibres qui est plus complexe, et alors plus efficace lorsque les lames ne sont pas perpendiculaires au sens de déplacement du suceur.Furthermore, the blades are preferably parallel to the rear edge of the nozzle, so as to bias the fibers by a blade perpendicular to the direction of movement of the nozzle. However, tests have shown that the efficiency is slightly improved when the blades have a certain inclination relative to the rear edge, for example about 20 °. An explanation could be the stressing mode of the fibers which is more complex, and then more effective when the blades are not perpendicular to the direction of displacement of the nozzle.

Claims (10)

  1. A vacuum cleaner nozzle attachment (1) for sucking up dust, said nozzle attachment having a substantially triangular shape and presenting, in particular, two side edges (5, 6) forming the tip of the nozzle attachment, said nozzle attachment being open towards the surface to be cleaned via at least two suction channels (19, 20) arranged along respective ones of the two side edges (6, 5) forming the tip of the nozzle attachment, said vacuum cleaner nozzle attachment being characterized in that the bottom face of said nozzle attachment (1) is provided with scraper blades (45, 46) that are mutually parallel and that extend from either side edge (5, 6) towards the other side edge (6, 5), into the corresponding suction channel (20, 19).
  2. A vacuum cleaner nozzle attachment (1) according to the preceding claim, characterized in that the blades (45, 46) are uniformly distributed over at least one half of the length of each side edge (5, 6).
  3. A vacuum cleaner nozzle attachment (1) according to any preceding claim, characterized in that the length of each blade (45, 46) inside the suction channel (20, 19) is less than one half of the width of the channel at that level.
  4. A vacuum cleaner nozzle attachment (1) according to any preceding claim, characterized in that each blade (45, 46) has a base (47) in abutment against the top face of the nozzle attachment and extending to the next blade.
  5. A vacuum cleaner nozzle attachment according to the preceding claim, characterized in that the top face (66) of each base (47) slopes towards the suction channel.
  6. A vacuum cleaner nozzle attachment (1) according to claim 1 or claim 2, characterized in that the blades (45, 46) extend from one edge (5) of the channel to the other edge (6), in such a manner as to form a top space in the channel (20, 19) enabling large pieces of waste and the stream of air to pass over said blades (45, 46).
  7. A vacuum cleaner nozzle attachment (1) according to any preceding claim, characterized in that it is in the shape of an isosceles triangle, having a rear edge (9) interconnecting the side edges (5, 6), and in that the blades (45, 46) are substantially parallel to said rear edge (9).
  8. A vacuum cleaner nozzle attachment (1) according to any one of claims 1 to 6, characterized in that it is in the shape of an isosceles triangle, having a rear edge (9) interconnecting the side edges (5, 6), and in that the blades (45, 46) are inclined at 20° relative to the rear edge (9).
  9. A vacuum cleaner nozzle attachment (1) according to any preceding claim, characterized in that the two channels (19, 20) arranged along the side edges (6, 5) meet in the front portion (21) of the nozzle attachment (1).
  10. A vacuum cleaner nozzle attachment (1) according to any preceding claim, characterized in that the front rim of the nozzle attachment has at least one front orifice (7) designed to provide suction in a direction that is substantially parallel to the surface to be cleaned, said suction front orifice (7) being connected to one of the suction channels (19, 20, 21).
EP04356094A 2003-06-20 2004-06-10 Suction nozzle of a vacuum cleaner Expired - Lifetime EP1488727B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307437A FR2856266B1 (en) 2003-06-20 2003-06-20 VACUUM SUCKER
FR0307437 2003-06-20

Publications (2)

Publication Number Publication Date
EP1488727A1 EP1488727A1 (en) 2004-12-22
EP1488727B1 true EP1488727B1 (en) 2008-07-30

Family

ID=33396816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04356094A Expired - Lifetime EP1488727B1 (en) 2003-06-20 2004-06-10 Suction nozzle of a vacuum cleaner

Country Status (7)

Country Link
EP (1) EP1488727B1 (en)
CN (1) CN100333680C (en)
AT (1) ATE402644T1 (en)
DE (1) DE602004015368D1 (en)
ES (1) ES2309475T3 (en)
FR (1) FR2856266B1 (en)
RU (1) RU2328204C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100688616B1 (en) * 2005-09-30 2007-03-02 삼성광주전자 주식회사 Brush assembly for vacuum cleaner
EP3264961A1 (en) * 2015-03-06 2018-01-10 Alfred Kärcher GmbH & Co. KG Floor nozzle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE390102B (en) * 1975-01-29 1976-12-06 Electrolux Ab DEVICE ON A NOZZLE FOR A VACUUM CLEANER
SE442814B (en) * 1981-09-14 1986-02-03 Jan Tjulander Suction mouthpiece for a vacuum cleaner
US4638527A (en) * 1986-02-20 1987-01-27 Fleischhauer Eugene T Vacuum cleaner attachments
US5347679A (en) * 1993-01-07 1994-09-20 Royal Appliance Mfg. Co. Stick type vacuum cleaner
FR2773456B1 (en) * 1998-01-14 2000-02-25 Seb Sa VACUUM CLEANER
FR2792817B1 (en) * 1999-04-29 2001-06-29 Seb Sa VACUUM CLEANER WITH RECLAMATION BLADE
FR2796260B1 (en) * 1999-07-12 2002-08-30 Moulinex Sa ARTICULATED DUST VACUUM CLEANER AND VACUUM EQUIPPED WITH SUCH A NOZZLE

Also Published As

Publication number Publication date
RU2328204C2 (en) 2008-07-10
RU2004118674A (en) 2005-11-20
DE602004015368D1 (en) 2008-09-11
FR2856266B1 (en) 2005-09-16
EP1488727A1 (en) 2004-12-22
FR2856266A1 (en) 2004-12-24
CN100333680C (en) 2007-08-29
CN1572217A (en) 2005-02-02
ATE402644T1 (en) 2008-08-15
ES2309475T3 (en) 2008-12-16

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