EP2433538B1 - Suction nozzle sliding base plate of a vacuum cleaner - Google Patents

Suction nozzle sliding base plate of a vacuum cleaner Download PDF

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Publication number
EP2433538B1
EP2433538B1 EP11306188.1A EP11306188A EP2433538B1 EP 2433538 B1 EP2433538 B1 EP 2433538B1 EP 11306188 A EP11306188 A EP 11306188A EP 2433538 B1 EP2433538 B1 EP 2433538B1
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EP
European Patent Office
Prior art keywords
sole
scraping
vacuum
suction channel
floor
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EP11306188.1A
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German (de)
French (fr)
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EP2433538A1 (en
Inventor
Thierry Guino
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SEB SA
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SEB SA
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Priority to PL11306188T priority Critical patent/PL2433538T3/en
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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

Definitions

  • the present invention generally relates to a vacuum nozzle whose sole improves the suction efficiency.
  • the document GB 1,458,899 has a suction nozzle whose sole has a suction channel defined at the front and rear by flexible blades. These blades can be deformed under the action of a vertical force of support on the sole created by the depression in the channel. By deforming, the blades vary the effective surface of the channel and regulate the force of support, to allow to scrape a textile floor with a constant force. Scraping is understood to mean the mechanical action of the sole on the hairs of the textile floor to be cleaned.
  • the document EP1964501 describes a vacuum nozzle comprising two scraping rules forward and backward.
  • Each scraping rule comprises an inclined surface, in front of and behind the suction channel, and a substantially flat area.
  • the angle of the two inclined surfaces is different.
  • the connection between the flat area and the inclined surface is rounded.
  • the objective of this geometry is a simpler manufacture of the nozzle while maintaining the cleaning performance.
  • An object of the present invention is to meet the drawbacks of the document of the prior art mentioned above and in particular, first of all, to provide a sole suction nozzle sole which makes it possible to guarantee efficient suction of floors. textiles and easy use during squeegee movements.
  • a first aspect of the invention relates to a suction nozzle sole comprising at least one suction channel of the ground defined at the front and rear by scraping edges, characterized in that the sole comprises means limiting the force of advancement of the soleplate on the ground interacting with means for regulating a pressure-flow torque of the air sucked into the suction channel by predetermining a pressure drop of the passing air under the ridge before scratching. Thanks to the means of regulating the pressure and the flow of air in the suction channel, the plating force resulting from the pressure in the suction channel guarantees effective scraping of the soil to be cleaned, and the other aside, the flow rate is sufficient to cause the particles to suck.
  • Means limiting the forward force make the use of the nozzle easy and easy, while also participating in setting the value of pressure and flow in the suction channel of the nozzle. Finally, the control means also participate in limiting the efforts to move the sole by distributing the plating force and ensuring that it is not too important.
  • the scraping edges define a scraping plane and the means for regulating a torque pressure-flow of the air sucked into the suction channel comprises a sealing plate included in the scratching plane and delimited by the front edge of scraping.
  • the pressure drop is fixed by the width of the sealing plate in a simple way because the air is forced to pass through the textile floor to be cleaned. This dish makes it possible to distribute the contact forces on the textile floor to be cleaned, which limits the efforts that the user must exert during the movements of the nozzle.
  • the means limiting the force of advance of the soleplate on the ground comprise a forward attack chamfer arranged at the front of the sealing plate, forming with the scratching plane an angle less than 20 °.
  • This simple embodiment has the effect of limiting the forward forces when the nozzle is pushed forward, but its arrangement at the front of the dish also guides the intake air and ensure that the air flow passing under the plate will allow proper aspiration of the particles.
  • a rear attack chamfer limiting the back force of the sole on the ground is arranged behind the rear edge of scratching.
  • This simple embodiment has the effect of limiting the recoil forces when the nozzle is pulled back, but its arrangement at the rear of the rear edge of scraping also guides the intake air and ensure that the flow air passing under the rear scraping edge will allow proper aspiration of the particles.
  • the suction channel has a length Lc and characterized in that the plate has a width Lp greater than the value defined by the formula Lp> 570 / Lc.
  • the pressure drop of air passing under the plate is distributed over the entire length of the suction channel. The longer it is, the lower the pressure drop per unit length must be.
  • the formula defining the minimum value of the width of the plate makes it possible to adapt this width which directly controls the pressure drop. Tests and tests in fluid mechanics show that a flat too narrow is not suitable to predetermine a sufficient pressure drop.
  • the front and rear attack chamfers form with the scratching plane an angle of between 10 and 20 ° and in that they are connected at their opposite end to the scraping edges with a radius.
  • This value range of chamfer angle of attack ensures not only increased ease of use, but also a correct flow rate to allow satisfactory suction efficiency. Below 10 °, the chamfer limits the movement forces, but limits too much flow and above 20 °, the air flow is facilitated, but the thrust forces to put the sole in motion are too important.
  • the radius of the front attack chamfer is between 1 and 4 millimeters and in that the radius of the rear attack chamfer is between 2 and 8 millimeters.
  • the values of the radii arranged at the ends of the chamfers make it possible to reduce the resistance to movements, but also make it possible to ensure a value at the flow rate enabling efficient suction.
  • the sealing plate has a width between 4.5 and 5.5 millimeters, and in that the front and rear attack chamfers form with the scratching plane an angle of between 13 ° and 17 ° .
  • the Applicant has found that with values included in these ranges, the suction of textile floors was particularly effective.
  • a second aspect of the invention is a vacuum cleaner comprising at least one squeegee sole according to the first aspect of the invention.
  • the figure 1 represents the sectional view of a suction nozzle sole 100 for use in cleaning a textile floor.
  • the sole 100 includes a suction channel 10 formed along the sole 100. This channel is delimited at the front by a front scraping edge 11 and at the rear by a rear scraping edge 12.
  • the depression and the flow rate of the air in the suction channel 10 caused by the suction of the motor of the vacuum cleaner have values determined in particular by the pressure drops imposed on the air flow entering the suction channel 10. These pressure losses depend on the path of the air flow, which is imposed by the profile of the sole 100.
  • the flow of air entering from the front passes under the scraping edge before 11, but also under a sealing plate 20. This sealing plate 20 is contained in a scraping plane defined by the two scraping edges 11 and 12.
  • the width of the sealing plate 20, which is in contact with the soil, requires the flow of air to pass through the textile floor at least over the corresponding width of the dish 20.
  • the greater the width of the dish 20, the greater the pressure drop and therefore the pressure in the channel suction 10 drop.
  • the plating force created by the atmospheric pressure on the sole increases and the scraping of the ground by the front and rear edges 11 and 12 increases.
  • the value of the width of the plate 20 should not be too important because it is necessary that the particles removed from the fibers by the scratching edges 11 and 12 are then sucked and for this purpose, it is necessary that the air flow sucked has a minimum value.
  • the plate 20 distributes the plating force on the ground and therefore limits the depression of the sole in the textile ground and the effort required to push the nozzle.
  • a chamfer 25 is arranged at the front of the flat and ends with a radius 26. Due to its position juxtaposed to the flat, the chamfer 25, in addition to reducing the resistance strength of the fibers of the textile soil to pass under the plate 20, guides the air and acts on the pressure drop of the flow sucked.
  • the parameters influencing the passage of the air flow are the angle ⁇ of the chamfer 25 with the scratching plane and the length of the chamfer 25.
  • the scraping edge 12 is connected to a chamfer 35 which ends with a radius 36.
  • the chamfer 35 limits the forces during the retreat of the sole 100 allowing a progressive contact of the sole with the bristles of the textile floor to be cleaned, but its length and its angle ⁇ with the scraping plane also affects the air flow entering the rear of the suction channel 10.

Description

La présente invention concerne de manière générale un suceur d'aspirateur dont la semelle améliore l'efficacité d'aspiration.The present invention generally relates to a vacuum nozzle whose sole improves the suction efficiency.

Il est connu dans l'art antérieur des suceurs d'aspirateur dont le but est de fournir un système d'aspiration dont les paramètres sont maîtrisés. Le document GB 1 458 899 présente un suceur d'aspirateur dont la semelle comporte un canal d'aspiration délimité à l'avant et à l'arrière par des lames flexibles. Ces lames peuvent se déformer sous l'action d'une force verticale d'appui sur la semelle créée par la dépression dans le canal. En se déformant, les lames font varier la surface efficace du canal et régulent la force d'appui, pour permettre de gratter un sol textile avec une force constante. On entend par grattage l'action mécanique de la semelle sur les poils du sol textile qui doit être nettoyé.It is known in the prior art sucking suckers whose purpose is to provide a suction system whose parameters are controlled. The document GB 1,458,899 has a suction nozzle whose sole has a suction channel defined at the front and rear by flexible blades. These blades can be deformed under the action of a vertical force of support on the sole created by the depression in the channel. By deforming, the blades vary the effective surface of the channel and regulate the force of support, to allow to scrape a textile floor with a constant force. Scraping is understood to mean the mechanical action of the sole on the hairs of the textile floor to be cleaned.

Le système décrit ci-dessus présente notamment l'inconvénient de ne pas être assez efficace. En effet, ce système n'agit que sur la force de plaquage au sol de la semelle dans le but d'avoir une répercussion sur le grattage. Or rien dans ce système ne garantit que le débit d'air entrant dans le canal d'aspiration sera suffisant pour entraîner les particules à aspirer. On peut même noter que les pièces déformables étant en matériau élastique, vont au cours de leur vie durcir et ne plus se déformer convenablement, de sorte que la section efficace du canal sera plus importante, rendant la force d'appui trop importante par rapport au besoin initialement défini, ce qui limitera le débit d'air passant sous les lames. En conséquence, l'efficacité d'aspiration sera diminuée. Il est également à noter que ce document présente le suceur équipé de roulettes qui garantissent un écartement minimum entre le sol et la surface inférieure de la semelle. Ces éléments de roulement imposent donc une surface de passage minimum pour le débit d'air, quelle que soit la pression dans le canal d'aspiration, tout en étant d'utilisation malcommode sur un sol textile car leur diamètre n'est pas adapté aux obstacles rencontrés. Enfin, l'usage de ces multiples pièces rend la construction du suceur complexe et onéreuse. Il apparaît que la semelle décrite ne permet pas de diminuer les puissances des moteurs tout en garantissant un bon grattage des sols textiles avec un flux d'aspiration des impuretés suffisant.The system described above has the particular disadvantage of not being effective enough. Indeed, this system only acts on the grounding force of the soleplate in order to have an impact on scratching. However, nothing in this system guarantees that the flow of air entering the suction channel will be sufficient to drive the particles to be sucked. It may even be noted that the deformable parts being made of elastic material, during their lifetime harden and no longer deform properly, so that the effective cross section of the channel will be greater, making the support force too great compared to the need initially defined, which will limit the flow of air passing under the blades. As a result, the suction efficiency will be decreased. It should also be noted that this document presents the nozzle equipped with wheels which guarantee a minimum spacing between the ground and the lower surface of the sole. These rolling elements therefore impose a minimum passage area for the air flow, regardless of the pressure in the suction channel, while being inconvenient use on a floor textile because their diameter is not adapted to the obstacles encountered. Finally, the use of these multiple parts makes the construction of the nozzle complex and expensive. It appears that the described sole does not reduce the power of the motors while ensuring good scratching of textile floors with sufficient suction flow of impurities.

Le document EP1964501 décrit une buse d'aspirateur comprenant deux règles de grattage en avant et en arrière. Chaque règle de grattage comprend une surface inclinée, devant et derrière le canal d'aspiration, et une zone sensiblement plane. L'angle des deux surfaces inclinées est différent. Par ailleurs, la liaison entre la zone plane et la surface inclinée est arrondie. L'objectif de cette géométrie est une fabrication plus simple du suceur tout en maintenant les performances de nettoyage.The document EP1964501 describes a vacuum nozzle comprising two scraping rules forward and backward. Each scraping rule comprises an inclined surface, in front of and behind the suction channel, and a substantially flat area. The angle of the two inclined surfaces is different. Furthermore, the connection between the flat area and the inclined surface is rounded. The objective of this geometry is a simpler manufacture of the nozzle while maintaining the cleaning performance.

Un but de la présente invention est de répondre aux inconvénients du document de l'art antérieur mentionnés ci-dessus et en particulier, tout d'abord, de proposer une semelle de suceur d'aspirateur simple qui permet de garantir une aspiration efficace de sols textiles et une utilisation facile lors des mouvements du suceur.An object of the present invention is to meet the drawbacks of the document of the prior art mentioned above and in particular, first of all, to provide a sole suction nozzle sole which makes it possible to guarantee efficient suction of floors. textiles and easy use during squeegee movements.

Pour cela un premier aspect de l'invention concerne une semelle de suceur d'aspirateur comportant au moins un canal d'aspiration du sol délimité à l'avant et à l'arrière par des arêtes de grattage, caractérisée en ce que la semelle comprend des moyens limitant l'effort d'avancée de la semelle sur le sol interagissant avec des moyens de régulation d'un couple pression-débit de l'air aspiré dans le canal d'aspiration en prédéterminant une perte de charge de l'air passant sous l'arête avant de grattage. Grâce aux moyens de régulation de la pression et du débit de l'air dans le canal d'aspiration, la force de plaquage résultant de la pression dans le canal d'aspiration garantit un grattage efficace du sol à nettoyer, et de l'autre côté, le débit est suffisant pour entraîner les particules à aspirer. Les moyens limitant l'effort d'avancée rendent l'utilisation du suceur facile et aisée, tout en participant aussi à fixer la valeur de la pression et du débit dans le canal d'aspiration du suceur. Enfin, les moyens de régulation participent aussi à limiter les efforts pour mettre en mouvement la semelle en répartissant la force de plaquage et en s'assurant que celle-ci n'est pas trop importante.For this, a first aspect of the invention relates to a suction nozzle sole comprising at least one suction channel of the ground defined at the front and rear by scraping edges, characterized in that the sole comprises means limiting the force of advancement of the soleplate on the ground interacting with means for regulating a pressure-flow torque of the air sucked into the suction channel by predetermining a pressure drop of the passing air under the ridge before scratching. Thanks to the means of regulating the pressure and the flow of air in the suction channel, the plating force resulting from the pressure in the suction channel guarantees effective scraping of the soil to be cleaned, and the other aside, the flow rate is sufficient to cause the particles to suck. Means limiting the forward force make the use of the nozzle easy and easy, while also participating in setting the value of pressure and flow in the suction channel of the nozzle. Finally, the control means also participate in limiting the efforts to move the sole by distributing the plating force and ensuring that it is not too important.

Selon un deuxième aspect de l'invention, les arêtes de grattage définissent un plan de grattage et les moyens de régulation d'un couple pression-débit de l'air aspiré dans le canal d'aspiration comprennent un plat d'étanchéité compris dans le plan de grattage et délimité par l'arête avant de grattage. La perte de charge est fixée par la largeur du plat d'étanchéité de manière simple car l'air est forcé de passer au travers du sol textile à nettoyer. Ce plat permet de répartir les efforts de contact sur le sol textile à nettoyer, ce qui limite les efforts que doit exercer l'utilisateur lors des mouvements du suceur.According to a second aspect of the invention, the scraping edges define a scraping plane and the means for regulating a torque pressure-flow of the air sucked into the suction channel comprises a sealing plate included in the scratching plane and delimited by the front edge of scraping. The pressure drop is fixed by the width of the sealing plate in a simple way because the air is forced to pass through the textile floor to be cleaned. This dish makes it possible to distribute the contact forces on the textile floor to be cleaned, which limits the efforts that the user must exert during the movements of the nozzle.

Selon un troisième aspect de l'invention, les moyens limitant l'effort d'avancée de la semelle sur le sol comprennent un chanfrein d'attaque avant agencé à l'avant du plat d'étanchéité, formant avec le plan de grattage un angle inférieur à 20°. Cette réalisation simple a pour effet de limiter les efforts d'avancée lorsque le suceur est poussé vers l'avant, mais son agencement à l'avant du plat permet aussi de guider l'air aspiré et de garantir que le débit d'air passant sous le plat permettra une aspiration correcte des particules.According to a third aspect of the invention, the means limiting the force of advance of the soleplate on the ground comprise a forward attack chamfer arranged at the front of the sealing plate, forming with the scratching plane an angle less than 20 °. This simple embodiment has the effect of limiting the forward forces when the nozzle is pushed forward, but its arrangement at the front of the dish also guides the intake air and ensure that the air flow passing under the plate will allow proper aspiration of the particles.

Avantageusement, un chanfrein d'attaque arrière limitant l'effort de recul de la semelle sur le sol est agencé derrière l'arête arrière de grattage. Cette réalisation simple a pour effet de limiter les efforts de recul lorsque le suceur est tiré vers l'arrière, mais son agencement à l'arrière de l'arête arrière de grattage permet aussi de guider l'air aspiré et de garantir que le débit d'air passant sous l'arête arrière de grattage permettra une aspiration correcte des particules.Advantageously, a rear attack chamfer limiting the back force of the sole on the ground is arranged behind the rear edge of scratching. This simple embodiment has the effect of limiting the recoil forces when the nozzle is pulled back, but its arrangement at the rear of the rear edge of scraping also guides the intake air and ensure that the flow air passing under the rear scraping edge will allow proper aspiration of the particles.

Avantageusement, le canal d'aspiration présente une longueur Lc et caractérisée en ce que le plat présente une largeur Lp supérieure à la valeur définie par la formule Lp>570/Lc. La perte de charge de l'air passant sous le plat est répartie sur toute la longueur du canal d'aspiration. Plus ce dernier est long, moins la perte de charge par unité de longueur doit être grande. A cet effet, la formule définissant la valeur minimale de la largeur du plat permet d'adapter cette largeur qui pilote directement la perte de charge. Les tests et essais en mécanique des fluides montrent qu'un plat trop étroit ne convient pas à prédéterminer une perte de charge suffisante.Advantageously, the suction channel has a length Lc and characterized in that the plate has a width Lp greater than the value defined by the formula Lp> 570 / Lc. The pressure drop of air passing under the plate is distributed over the entire length of the suction channel. The longer it is, the lower the pressure drop per unit length must be. For this purpose, the formula defining the minimum value of the width of the plate makes it possible to adapt this width which directly controls the pressure drop. Tests and tests in fluid mechanics show that a flat too narrow is not suitable to predetermine a sufficient pressure drop.

Avantageusement, les chanfreins d'attaque avant et arrière forment avec le plan de grattage un angle compris entre 10 et 20° et en ce qu'ils sont reliés à leur extrémité opposée aux arêtes de grattage avec un rayon. Cette plage de valeur de l'angle d'attaque des chanfreins permet de garantir non seulement une facilité d'utilisation accrue, mais aussi un débit correct pour permettre une efficacité d'aspiration satisfaisante. En dessous de 10°, le chanfrein limite les efforts de mouvement, mais limite trop le débit et au dessus de 20°, le débit d'air est facilité, mais les efforts de poussée pour mettre la semelle en mouvement sont trop importants.Advantageously, the front and rear attack chamfers form with the scratching plane an angle of between 10 and 20 ° and in that they are connected at their opposite end to the scraping edges with a radius. This value range of chamfer angle of attack ensures not only increased ease of use, but also a correct flow rate to allow satisfactory suction efficiency. Below 10 °, the chamfer limits the movement forces, but limits too much flow and above 20 °, the air flow is facilitated, but the thrust forces to put the sole in motion are too important.

Avantageusement, le rayon du chanfrein d'attaque avant est compris entre 1 et 4 millimètres et en ce que le rayon du chanfrein d'attaque arrière est compris entre 2 et 8 millimètres. Ici aussi, les valeurs des rayons agencés aux extrémités des chanfreins permettent une réduction des résistances aux mouvements, mais aussi permettent d'assurer une valeur au débit permettant une aspiration efficace.Advantageously, the radius of the front attack chamfer is between 1 and 4 millimeters and in that the radius of the rear attack chamfer is between 2 and 8 millimeters. Here too, the values of the radii arranged at the ends of the chamfers make it possible to reduce the resistance to movements, but also make it possible to ensure a value at the flow rate enabling efficient suction.

Une réalisation particulièrement intéressante consiste en ce que le plat d'étanchéité a une largeur comprise entre 4.5 et 5.5 millimètres, et en ce que les chanfreins d'attaque avant et arrière forment avec le plan de grattage un angle compris entre 13° et 17°. La demanderesse a constaté qu'avec des valeurs comprises dans ces plages, l'aspiration de sols textiles était particulièrement efficace.A particularly interesting embodiment is that the sealing plate has a width between 4.5 and 5.5 millimeters, and in that the front and rear attack chamfers form with the scratching plane an angle of between 13 ° and 17 ° . The Applicant has found that with values included in these ranges, the suction of textile floors was particularly effective.

Un second aspect de l'invention est un aspirateur comprenant au moins une semelle de suceur selon le premier aspect de l'invention.A second aspect of the invention is a vacuum cleaner comprising at least one squeegee sole according to the first aspect of the invention.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit de modes de réalisation de l'invention donnés à titre d'exemples nullement limitatifs et illustrés par les dessins annexés, dans lesquels :

  • la figure 1 représente la coupe d'une semelle de suceur d'aspirateur selon l'invention.
Other features and advantages of the present invention will appear more clearly on reading the following detailed description of embodiments of the invention given as non-limiting examples and illustrated by the appended drawings, in which:
  • the figure 1 represents the section of a suction nozzle sole according to the invention.

La figure 1 représente la vue en coupe d'une semelle de suceur d'aspirateur 100 destinée à être utilisée pour nettoyer un sol textile. La semelle 100 comporte un canal d'aspiration 10 ménagé tout le long de la semelle 100. Ce canal est délimité à l'avant par une arête de grattage avant 11 et à l'arrière par une arête de grattage arrière 12. La dépression et le débit de l'air dans le canal d'aspiration 10 causés par l'aspiration du moteur de l'aspirateur ont des valeurs déterminées notamment par les pertes de charge imposées au flux d'air entrant dans le canal d'aspiration 10. Ces pertes de charge dépendent du trajet du flux d'air, lequel est imposé par le profil de la semelle 100. Le flux d'air entrant par l'avant passe sous l'arête de grattage avant 11, mais aussi sous un plat d'étanchéité 20. Ce plat d'étanchéité 20 est contenu dans un plan de grattage défini par les deux arêtes de grattage 11 et 12. La largeur du plat d'étanchéité 20, qui est en contact avec le sol, impose au flux d'air de traverser le sol textile au moins sur la largeur correspondante du plat 20. Ainsi, plus on augmente la largeur du plat 20, plus on augmente la perte de charge et donc la pression dans le canal d'aspiration 10 baisse. En conséquence, la force de plaquage créée par la pression atmosphérique sur la semelle augmente et le grattage du sol par les arêtes avant et arrière 11 et 12 augmente. Néanmoins, la valeur de la largeur du plat 20 ne doit pas être trop importante car il faut que les particules retirées des fibres par les arêtes de grattage 11 et 12 soient ensuite aspirées et à cet effet, il faut que le débit d'air aspiré ait une valeur minimale. Par ailleurs, il est à noter que le plat 20 répartit sur le sol la force de plaquage et de ce fait, limite l'enfoncement de la semelle dans le sol textile ainsi que l'effort nécessaire pour pousser le suceur. Pour faciliter aussi le déplacement vers l'avant de la semelle 100, un chanfrein 25 est agencé à l'avant du plat et se termine par un rayon 26. De par sa position juxtaposée au plat, le chanfrein 25, en plus de réduire la force de résistance des fibres du sol textile à passer sous le plat 20, guide l'air et agit sur la perte de charge du flux aspiré. Les paramètres influant le passage du flux d'air sont l'angle α du chanfrein 25 avec le plan de grattage et la longueur du chanfrein 25. A l'arrière du canal d'aspiration 10, l'arête de grattage 12 est raccordée à un chanfrein 35 qui se termine par un rayon 36. Le chanfrein 35 limite les efforts lors du recul de la semelle 100 en permettant un contact progressif de la semelle avec les poils du sol textile à nettoyer, mais sa longueur et son angle β avec le plan de grattage influent aussi sur le débit d'air entrant par l'arrière du canal d'aspiration 10.The figure 1 represents the sectional view of a suction nozzle sole 100 for use in cleaning a textile floor. The sole 100 includes a suction channel 10 formed along the sole 100. This channel is delimited at the front by a front scraping edge 11 and at the rear by a rear scraping edge 12. The depression and the flow rate of the air in the suction channel 10 caused by the suction of the motor of the vacuum cleaner have values determined in particular by the pressure drops imposed on the air flow entering the suction channel 10. These pressure losses depend on the path of the air flow, which is imposed by the profile of the sole 100. The flow of air entering from the front passes under the scraping edge before 11, but also under a sealing plate 20. This sealing plate 20 is contained in a scraping plane defined by the two scraping edges 11 and 12. The width of the sealing plate 20, which is in contact with the soil, requires the flow of air to pass through the textile floor at least over the corresponding width of the dish 20. Thus, the greater the width of the dish 20, the greater the pressure drop and therefore the pressure in the channel suction 10 drop. As a result, the plating force created by the atmospheric pressure on the sole increases and the scraping of the ground by the front and rear edges 11 and 12 increases. However, the value of the width of the plate 20 should not be too important because it is necessary that the particles removed from the fibers by the scratching edges 11 and 12 are then sucked and for this purpose, it is necessary that the air flow sucked has a minimum value. Furthermore, it should be noted that the plate 20 distributes the plating force on the ground and therefore limits the depression of the sole in the textile ground and the effort required to push the nozzle. To facilitate also the forward movement of the sole 100, a chamfer 25 is arranged at the front of the flat and ends with a radius 26. Due to its position juxtaposed to the flat, the chamfer 25, in addition to reducing the resistance strength of the fibers of the textile soil to pass under the plate 20, guides the air and acts on the pressure drop of the flow sucked. The parameters influencing the passage of the air flow are the angle α of the chamfer 25 with the scratching plane and the length of the chamfer 25. At the rear of the suction channel 10, the scraping edge 12 is connected to a chamfer 35 which ends with a radius 36. The chamfer 35 limits the forces during the retreat of the sole 100 allowing a progressive contact of the sole with the bristles of the textile floor to be cleaned, but its length and its angle β with the scraping plane also affects the air flow entering the rear of the suction channel 10.

On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées aux différents modes de réalisation de l'invention décrits dans la présente description sans sortir du cadre de l'invention défini par les revendications annexées. En particulier, il est fait référence à une semelle comportant un seul canal, mais on peut envisager d'implanter l'invention sur une semelle qui comporte une pluralité de canaux d'aspiration.It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the various modes of embodiment of the invention described in the present description without departing from the scope of the invention defined by the appended claims. In particular, reference is made to a sole having a single channel, but it is conceivable to implant the invention on a sole that has a plurality of suction channels.

Claims (7)

  1. Sole (100) of a vacuum-cleaner nozzle, comprising at least one suction channel (10) for aspiration of the floor, delimited at the front and rear by scraping edges (11, 12), characterised in that the sole (100) comprises means limiting the force for moving the sole forward on the floor, interacting with means for regulating a pair consisting of the pressure and the air flow aspirated by the suction channel (10) by predetermining a pressure drop in the air passing under the front scraping edge (11), the scraping edges (11, 12) defining a scraping plane, and the means for regulating a pair consisting of the pressure and the air flow aspirated in the suction channel (10) comprising a sealing flat (20) included in the scraping plane and delimited by the front scraping edge (11), and the means limiting the force for moving the sole (100) forward on the floor comprising a front leading bevel (25) arranged in front of the sealing flat (20) forming with the scraping plane an angle of less than 20°.
  2. Sole (100) of a vacuum-cleaner nozzle according to claim 1, characterised in that a rear leading bevel (35) limiting the force for drawing the sole (100) back on the floor is arranged behind the rear scraping edge (12).
  3. Sole (100) of a vacuum-cleaner nozzle according to claim 1 or claim 2, the suction channel (10) of which has a length Lc and characterised in that the flat (20) has a width Lp greater than the value defined by the formula Lp > 570/Lc.
  4. Sole (100) of a vacuum-cleaner nozzle according to claim 2 or claim 3, characterised in that the front and rear leading bevels (25, 35) form with the scraping plane an angle of between 10° and 20° and in that they are connected at their end opposite to the scraping edges with a radius (26, 36).
  5. Sole (100) of a vacuum-cleaner nozzle according to claim 4, in that it is dependent on claim 2, characterised in that the radius (26) of the front leading bevel is between 1 and 4 millimetres and in that the radius (36) of the rear leading bevel is between 2 and 8 millimetres.
  6. Sole (100) of a vacuum-cleaner nozzle according to any of claims 2 to 5, characterised in that the sealing flat (20) has a width of between 4.5 and 5.5 millimetres, and in that the front and rear leading bevels (25, 35) form with the scraping plane and angle of between 13° and 17°.
  7. Vacuum cleaner comprising at least one nozzle sole (100) according to any of claims 1 to 6.
EP11306188.1A 2010-09-24 2011-09-22 Suction nozzle sliding base plate of a vacuum cleaner Active EP2433538B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11306188T PL2433538T3 (en) 2010-09-24 2011-09-22 Suction nozzle sliding base plate of a vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1057713A FR2965165B1 (en) 2010-09-24 2010-09-24 VACUUM CLEANER SCRATCH RULES

Publications (2)

Publication Number Publication Date
EP2433538A1 EP2433538A1 (en) 2012-03-28
EP2433538B1 true EP2433538B1 (en) 2018-04-25

Family

ID=44065273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11306188.1A Active EP2433538B1 (en) 2010-09-24 2011-09-22 Suction nozzle sliding base plate of a vacuum cleaner

Country Status (7)

Country Link
EP (1) EP2433538B1 (en)
KR (1) KR101870442B1 (en)
CN (1) CN102415854B (en)
ES (1) ES2670575T3 (en)
FR (1) FR2965165B1 (en)
PL (1) PL2433538T3 (en)
PT (1) PT2433538T (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015101019A1 (en) * 2015-01-23 2016-07-28 Wessel-Werk Gmbh Plastic sliding sole for a vacuum cleaner nozzle
FR3035583B1 (en) * 2015-04-29 2017-12-01 Seb Sa VACUUM SUCKER SOLE
FR3035582B1 (en) 2015-04-29 2017-06-02 Seb Sa VACUUM SUCKER SOLE
CN105982621B (en) * 2016-04-14 2019-12-13 北京小米移动软件有限公司 Automatic cleaning equipment's wind path structure and automatic cleaning equipment
EP3257417B1 (en) * 2016-06-14 2023-06-14 Wessel-Werk GmbH Vacuum cleaner jet
EP3366179B1 (en) * 2017-02-23 2019-07-24 Wessel-Werk GmbH Static floor nozzle for a vacuum cleaner
US11433437B2 (en) * 2018-04-13 2022-09-06 James T. Pierson Coating removal system
EP3639715B1 (en) * 2018-10-15 2023-04-19 Wessel-Werk GmbH Floor nozzle for a vacuum cleaner
FR3094623B1 (en) * 2019-04-05 2022-12-16 Seb Sa Vacuum nozzle with rear scraping rib
FR3138289A1 (en) * 2022-07-29 2024-02-02 Seb S.A. Suction head comprising a sole equipped with a curved front sliding surface

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GB1458899A (en) 1973-03-28 1976-12-15 Hitachi Ltd Suction nozzle for a vacuum cleaner
GB1493097A (en) 1976-07-09 1977-11-23 Wessel H Suction cleaner nozzles
DE7621523U1 (en) 1976-07-07 1978-01-19 Wessel, Hans, 5226 Reichshof SLIDING SOLE FOR VACUUM NOZZLE
DE7833705U1 (en) 1978-11-13 1979-04-26 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal SLIDING PLATE FOR VACUUM NOZZLE
DE7812958U1 (en) 1978-04-27 1979-10-04 Wessel, Hans, 5226 Reichshof SLIDING SOLE FOR VACUUM NOZZLE
DD155293A1 (en) 1980-12-16 1982-06-02 Harald Frank FLOOR PLATE FOR VACUUM CLEANER
FR2497453A1 (en) 1981-01-07 1982-07-09 Vorwerk Co Interholding SUCKER FOR DUST VACUUM CLEANER
EP0623304A1 (en) 1993-05-05 1994-11-09 Moulinex S.A. Vacuum cleaner nozzle
EP0793938A2 (en) 1996-03-04 1997-09-10 Wessel-Werk Gmbh Vacuum cleaner nozzle with spring sliding base plate
EP1561412A2 (en) 2004-02-04 2005-08-10 Miele & Cie. KG Nozzle for a suction cleaner
EP1772089A2 (en) 2005-10-04 2007-04-11 Samsung Gwangju Electronics Co., Ltd. Suction brush for a vacuum cleaner
EP1964501A2 (en) 2007-03-01 2008-09-03 Wessel-Werk Gmbh Sheet metal sliding base plate for vacuum cleaner nozzle

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KR20010098259A (en) * 2000-04-29 2001-11-08 구자홍 suction nozzle of recirculating type vacuum cleaner
SE530111C2 (en) * 2006-07-06 2008-03-04 Electrolux Ab Carpet cleaning device and a method for cleaning a carpet

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1458899A (en) 1973-03-28 1976-12-15 Hitachi Ltd Suction nozzle for a vacuum cleaner
DE7621523U1 (en) 1976-07-07 1978-01-19 Wessel, Hans, 5226 Reichshof SLIDING SOLE FOR VACUUM NOZZLE
GB1493097A (en) 1976-07-09 1977-11-23 Wessel H Suction cleaner nozzles
DE7812958U1 (en) 1978-04-27 1979-10-04 Wessel, Hans, 5226 Reichshof SLIDING SOLE FOR VACUUM NOZZLE
DE7833705U1 (en) 1978-11-13 1979-04-26 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal SLIDING PLATE FOR VACUUM NOZZLE
DD155293A1 (en) 1980-12-16 1982-06-02 Harald Frank FLOOR PLATE FOR VACUUM CLEANER
FR2497453A1 (en) 1981-01-07 1982-07-09 Vorwerk Co Interholding SUCKER FOR DUST VACUUM CLEANER
EP0623304A1 (en) 1993-05-05 1994-11-09 Moulinex S.A. Vacuum cleaner nozzle
EP0793938A2 (en) 1996-03-04 1997-09-10 Wessel-Werk Gmbh Vacuum cleaner nozzle with spring sliding base plate
EP1561412A2 (en) 2004-02-04 2005-08-10 Miele & Cie. KG Nozzle for a suction cleaner
EP1772089A2 (en) 2005-10-04 2007-04-11 Samsung Gwangju Electronics Co., Ltd. Suction brush for a vacuum cleaner
EP1964501A2 (en) 2007-03-01 2008-09-03 Wessel-Werk Gmbh Sheet metal sliding base plate for vacuum cleaner nozzle

Also Published As

Publication number Publication date
CN102415854B (en) 2016-05-18
ES2670575T3 (en) 2018-05-31
PT2433538T (en) 2018-05-25
PL2433538T3 (en) 2018-08-31
FR2965165B1 (en) 2013-07-12
KR20120031452A (en) 2012-04-03
CN102415854A (en) 2012-04-18
EP2433538A1 (en) 2012-03-28
KR101870442B1 (en) 2018-07-19
FR2965165A1 (en) 2012-03-30

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