WO2007104896A2 - Electric broom for cleaning the floor - Google Patents
Electric broom for cleaning the floor Download PDFInfo
- Publication number
- WO2007104896A2 WO2007104896A2 PCT/FR2007/050926 FR2007050926W WO2007104896A2 WO 2007104896 A2 WO2007104896 A2 WO 2007104896A2 FR 2007050926 W FR2007050926 W FR 2007050926W WO 2007104896 A2 WO2007104896 A2 WO 2007104896A2
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- WO
- WIPO (PCT)
- Prior art keywords
- housing
- fan
- compartment
- electric
- broom according
- Prior art date
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Classifications
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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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
- A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
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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
- A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
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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
- A47L9/22—Mountings for motor fan assemblies
Definitions
- the invention relates to an electric floor cleaning brush comprising a parallelepiped-shaped overall housing having means for moving on the ground and comprising a suction nozzle equipped with at least one brush which is rotated by a motor means and whose periphery comes into contact with the ground, a dust compartment enclosing a filter and delimited by at least one transverse front wall having an opening which comes into communication with the suction nozzle and a transverse rear wall having an opening outlet in communication with a suction port in a casing enclosing a centrifugal fan driven by a motor and having a delivery port arranged in a direction transverse to that of the suction port and through which the air is rejected outside the case.
- Cleaning brushes are already known, such as those described in US Pat. No. 5,500,979, in which the motor-fan unit comprises a fan casing arranged along a horizontal axis and having a suction orifice communicating with the dust compartment according to a low section.
- the housing must have at this level a certain height corresponding at least to the outer diameter of the fan housing and therefore a large size, but also that dust extraction being limited to a small section, the distribution of dust in a filter element of the compartment is uneven and can cause a rapid clogging at the suction port.
- Brushes of the type described in US Pat. No. 5,664,285 have also been proposed, in which the motor-fan unit is of the centrifugal type arranged in a casing along a horizontal axis and the suction orifice of which is located opposite an element. filter attached to the dust compartment.
- these brushes having a motorized brush, are generally equipped with suction groups of a power significantly lower on the order of 80 W and, preferably with a single fan single stage.
- the invention therefore aims to overcome the drawbacks of the prior art by making an electric brush design very simplified, providing a great convenience of movement on all surfaces to be cleaned, even those located under some furniture, while achieving an optimization of the air circuit sucked and discharged to maximize the efficiency of the air flows generated by the motor-fan unit and through the brush and the dust compartment.
- the rear wall is arranged at a slight distance from the bottom of the filter, and the outlet opening opens into an intermediate and tubular chamber with a vertical axis whose upper region has an outlet that fits tightly at the suction port of the housing, so that said housing is positioned flat above the housing
- an intermediate chamber allows not only to create a low-pressure airflow regulation volume, but also to fix the casing directly on the housing with the fan axis oriented in one direction. substantially vertical.
- the broom may have a low height housing allowing it to go under furniture such as beds.
- the intermediate chamber contains the fan drive motor which comprises a carcass of cylindrical general shape whose horizontal section is smaller than that of the section of the suction chamber and thus providing an annular space for guiding the sucked air.
- the fan drive motor which comprises a carcass of cylindrical general shape whose horizontal section is smaller than that of the section of the suction chamber and thus providing an annular space for guiding the sucked air.
- Figure 1 is a vertical and longitudinal sectional view of a brush according to the invention
- Figure 2 is a top view of Figure 1, after removal of an upper portion of the housing.
- an electric floor cleaning brush comprising an aesthetic cover 1 schematically broken lines and covering a housing 2 of parallelepiped general shape having means for moving on the ground. These means comprise at least two lateral wheels R located in the rear region of the housing.
- the housing 2 comprises a suction nozzle 3 equipped with at least one brush 4 which is rotated by a motor means 5 and whose periphery comes into contact with the ground.
- the brush 4 is unique and of the roller type horizontal extending transversely over almost the entire width of the housing, and the nozzle 3 is further supported by two small side wheels 6 maintaining an appropriate contact distance between the brush and the ground.
- the housing 2 is formed by at least two shells with lower walls 7 and upper 8 thus delimiting between them and transverse and longitudinal partitions various compartments.
- the housing comprises a dust compartment 9 enclosing a filter 10 and delimited by the walls 7 and 8 of the upper and lower shells, and by at least one transverse front wall 11 having an opening 12 which comes into communication with the nozzle 3 and a transverse rear wall 13, having an outlet opening 14 in communication with a suction orifice 15 formed in a casing 16 enclosing a fan 17 of the centrifugal type driven by a motor 18.
- the casing also has an orifice of delivery 19 arranged in a direction transverse to that of the suction port 15 and through which the air is rejected outside the housing.
- the housing further comprises a technical compartment 20 arranged in the rear end portion of this housing and one of the transverse partitions is constituted by the rear wall 13; the other transverse wall 21 and the side walls being constituted by the peripheral wall of the housing.
- motor means 5 comprising a motor 22 and a belt 23, the technical compartment 20 includes, on the one hand, the engine
- a rechargeable electric accumulator 25 for supplying the motors 18 and 22.
- the battery could be replaced by a transformer adapted to the power supply of the motor and powered by an electrical cord adapted to be connected to the sector, but this embodiment is less attractive because of the loss of autonomy of the broom.
- the rear wall 13 is arranged at a slight distance from the filter 10, and the outlet opening 14 opens into an intermediate and tubular chamber 26 with a vertical axis whose upper region has an outlet 27 which comes adapt, in a sealed manner, to the suction port 15 of the housing 16, so that said housing is positioned flat above the housing 2 and under the hood 1.
- the rear wall 13 has, at practically its entire height, at the level of the outlet opening 14, a recess extending out of the dust compartment to form the intermediate chamber 26.
- the intermediate chamber 26 contains the motor 18 for driving the fan 17 which comprises a carcass 28 of generally cylindrical shape whose horizontal section is smaller than that of the section of the chamber 26 thus providing an annular space 29 for guiding the sucked air. Thanks to this combination of intermediate chamber and engine plunging into this chamber, the tests carried out demonstrate a better laminar flow of air in the dust compartment until its recovery in the annular space, and an excellent efficiency of the fan obtained. by the vortex channeled in a vertical direction in said annular space According to a preferred embodiment and for the purpose of compact design of the constructive elements of the blade, the intermediate chamber 26 is located transversely in the extension of the technical compartment 20.
- the broom and constructed provides a compact structure grouping in a single housing, and in a longitudinal direction, the nozzle adjacent to the dust compartment, itself adjacent to the technical compartment
- the wheels R have their axis arranged substantially in a vertical plane passing through the axis of the motor 18 and the fan.
- the invention provides for giving the filter 10 a particular structure in order to provide a large filtration surface while preserving an air space around this filter to prevent in particular its saturation and thus delay to the maximum its clogging.
- the filter 10 has a generally pyramid-shaped trunk whose large base 30 is mounted adjacent and sealingly to the transverse front wall 11 of the dust compartment, and whose small base 31 is located at a distance from the posterior wall 13 of said compartment, thus providing a substantial space especially between the upper 8 and lower walls 7 of said compartment.
- this space grows from the anterior wall to the posterior wall without interruption
- the latter is removably mounted in the dust compartment, for example by a sliding system (not shown) in a transverse direction and can be extracted from said compartment through a light arranged in the lateral peripheral wall of the housing and equipped with a small pivoting door on the housing.
- the broom thus constructed can operate with a centrifugal fan of conventional type as described above, but also with a particular type of fan and preferred as shown in the figures.
- the fan is of the type described in patent FR 2826851 filed by the Applicant and comprises a flattened hollow body 32 open on its periphery and driven in rotation by the motor. 18 in the casing 16.
- Said hollow body is formed of two flanges 33 and 34 trapping a set of blades 35 and one of which is in the form of a truncated cone with a curved sidewall whose small base has an axial hole.
- the casing has an upstream portion 37 in volute centered on the axis of the fan with its suction orifice 15 fitted on the axial hole 36 and its orifice discharge nozzle 19 opening into a diverging downstream portion 38.
- This divergent downstream portion is provided with longitudinal internal partitions, not shown, for dividing and slowing the flow of outgoing air.
- Other embodiments of the invention may be envisaged without departing from the scope of the invention.
- it can be provided to replace the horizontal brush by two brushes with vertical or inclined axis located respectively on each side of the mouth of the nozzle.
Abstract
Broom comprising a housing (2) having a suction nozzle (3) with a motorized brush (4) and, a dust compartment (9) containing a filter (10) and bounded by at least one transverse front wall (11) in which an opening (12) communicates with said nozzle and a transverse rear wall (13) in which an outlet opening (14) communicates with a suction orifice (15) of a casing (16) containing a motorized centrifugal fan (17). According to the invention, the rear wall (13) is positioned a short distance from the filter, and the outlet opening (14) feeds into an intermediate chamber (26) of vertical axis, in the upper region of which is an exit (27) which fits onto the suction orifice of the casing, said casing (16) thus being positioned flat on the housing. The invention applies to electrical household appliances.
Description
BALAI ELECTRIQUE DE NETTOYAGE DES SOLS ELECTRIC BRUSH CLEANING SOIL
L'invention, se rapporte à un balai électrique de nettoyage des sols comprenant un boîtier de forme générale parallélépipédique ayant des moyens de déplacement sur le sol et comportant une buse d'aspiration équipée d'au moins une brosse qui est entraînée en rotation par un moyen moteur et dont la périphérie vient au contact du sol, un compartiment à poussières renfermant un filtre et délimité par au-moins une paroi antérieure transversale présentant une ouverture qui vient en communication avec la buse d'aspiration et une paroi postérieure transversale présentant une ouverture de sortie en communication avec un orifice d'aspiration pratiqué dans un carter renfermant un ventilateur du type centrifuge entraîné par un moteur et présentant un orifice de refoulement agencé selon une direction transversale à celle de l'orifice d'aspiration et par lequel l'air est rejeté a l'extérieur du boîtier.The invention relates to an electric floor cleaning brush comprising a parallelepiped-shaped overall housing having means for moving on the ground and comprising a suction nozzle equipped with at least one brush which is rotated by a motor means and whose periphery comes into contact with the ground, a dust compartment enclosing a filter and delimited by at least one transverse front wall having an opening which comes into communication with the suction nozzle and a transverse rear wall having an opening outlet in communication with a suction port in a casing enclosing a centrifugal fan driven by a motor and having a delivery port arranged in a direction transverse to that of the suction port and through which the air is rejected outside the case.
On connaît déjà des balais de nettoyage tels que ceux décrits dans le brevet US 5500979, dans lequel le groupe moto-ventilateur comporte un carter de ventilateur agencé selon un axe horizontal et ayant un orifice d'aspiration communiquant avec le compartiment à poussières selon une faible section.Cleaning brushes are already known, such as those described in US Pat. No. 5,500,979, in which the motor-fan unit comprises a fan casing arranged along a horizontal axis and having a suction orifice communicating with the dust compartment according to a low section.
Avec une telle construction du groupe moto-ventilateur, on comprendra que, non seulement, le boîtier doit présenter à ce niveau une certaine hauteur correspondant au minimum au diamètre externe du carter du ventilateur et donc un encombrement important, mais aussi, que
l'aspiration des poussières étant limitée à une faible section, la répartition des poussières dans un élément filtrant du compartiment est inégale et peut provoquer un colmatage rapide au niveau de l'orifice d'aspiration. II a également été proposé des balais du type décrit dans le brevet US 5664285 dans lequel le groupe moto- ventilateur est du type centrifuge agencé dans un carter selon un axe horizontal et dont l'orifice d'aspiration est situé en regard d'un élément filtrant solidaire du compartiment à poussières. Quoique la disposition particulière du filtre améliore l'aspiration des poussières , il reste néanmoins que le carter du ventilateur s'étend en hauteur selon sa plus grande dimension, et entraîne ainsi une surélévation de la partie arrière du boîtier. En outre la disposition axiale, face au filtre, de l'orifice d'aspiration provoque un courant d'air principal dirigé et concentré nuisant à l'efficacité du filtre. D'autre part, on fait remarquer que nulle part dans ces brevets on a recherché à obtenir une optimisation du circuit d'air général qui s'avère pourtant très importante dans les balais électriques qui, pour rappel, ne sont pas comparables à des aspirateurs classiques équipés de groupes d'aspiration de puissance d'environ 1200 W . En effet ces balais, ayant une brosse motorisée, sont généralement équipés de groupes d'aspiration d'une puissance nettement inférieure de l'ordre de 80 W et, de préférence avec un ventilateur unique à un seul étage. L'invention a donc pour but de pallier les inconvénients de l'art antérieur en réalisant un balai électrique de conception très simplifiée, procurant une grande commodité de déplacement sur toutes surfaces à nettoyer,
même celles situées sous certains meubles , tout en réalisant une optimisation du circuit d'air aspiré et refoulé afin d'améliorer au maximum le rendement des flux d'air générés par le groupe moto-ventilateur et traversant la brosse et le compartiment à poussières.With such a construction of the motor-fan unit, it will be understood that, not only, the housing must have at this level a certain height corresponding at least to the outer diameter of the fan housing and therefore a large size, but also that dust extraction being limited to a small section, the distribution of dust in a filter element of the compartment is uneven and can cause a rapid clogging at the suction port. Brushes of the type described in US Pat. No. 5,664,285 have also been proposed, in which the motor-fan unit is of the centrifugal type arranged in a casing along a horizontal axis and the suction orifice of which is located opposite an element. filter attached to the dust compartment. Although the particular arrangement of the filter improves the suction of the dust, it remains however that the fan housing extends in height according to its largest dimension, and thus causes an elevation of the rear part of the housing. In addition, the axial arrangement, facing the filter, of the suction orifice causes a directed and concentrated main air stream which is detrimental to the effectiveness of the filter. On the other hand, it is pointed out that nowhere in these patents has an attempt been made to obtain an optimization of the general air circuit, which nevertheless proves to be very important in electric brushes which, as a reminder, are not comparable to vacuum cleaners. classics equipped with power suction units of about 1200 W. Indeed, these brushes, having a motorized brush, are generally equipped with suction groups of a power significantly lower on the order of 80 W and, preferably with a single fan single stage. The invention therefore aims to overcome the drawbacks of the prior art by making an electric brush design very simplified, providing a great convenience of movement on all surfaces to be cleaned, even those located under some furniture, while achieving an optimization of the air circuit sucked and discharged to maximize the efficiency of the air flows generated by the motor-fan unit and through the brush and the dust compartment.
Selon l'invention, la paroi postérieure est agencée à légère distance du fond du filtre, et l'ouverture de sortie débouche dans une chambre intermédiaire et tubulaire à axe vertical dont la région supérieure présente un débouché qui vient s'adapter, de façon étanche, à l'orifice d'aspiration du carter, de sorte que ledit carter est positionné à plat au-dessus du boîtier Ainsi, grâce à cette construction particulière, on réalise déjà au sein même du compartiment à poussières un conduit optimisé de guidage de l'air jusqu'à l'orifice d'aspiration permettant une répartition uniforme de la poussière sur toute l'étendue transversale du compartiment à poussières, notamment sur la région postérieure du filtre. Ainsi le risque de colmatage de ce filtre est pratiquement éliminé.According to the invention, the rear wall is arranged at a slight distance from the bottom of the filter, and the outlet opening opens into an intermediate and tubular chamber with a vertical axis whose upper region has an outlet that fits tightly at the suction port of the housing, so that said housing is positioned flat above the housing Thus, thanks to this particular construction, is already carried out within the dust compartment itself an optimized guide duct air to the suction port allowing uniform distribution of dust throughout the transverse extent of the dust compartment, especially in the posterior region of the filter. Thus the risk of clogging of this filter is virtually eliminated.
En outre, la création d'une chambre intermédiaire permet, non seulement, de créer un volume dépressionnaire de régulation du flux d'air, mais aussi de fixer directement à plat le carter sur le boîtier avec l'axe du ventilateur orienté selon une direction sensiblement verticale.In addition, the creation of an intermediate chamber allows not only to create a low-pressure airflow regulation volume, but also to fix the casing directly on the housing with the fan axis oriented in one direction. substantially vertical.
Ainsi, le balai peut avoir un boîtier de faible hauteur lui permettant de passer sous des meubles tels que des lits.Thus, the broom may have a low height housing allowing it to go under furniture such as beds.
Toujours dans un but d'optimisation de l'écoulement de l'air et d'arrangement compact des divers éléments constituant le balai électrique, l'invention prévoit que la chambre intermédiaire contient le moteur d'entraînement du ventilateur qui comprend une carcasse
de forme générale cylindrique dont la section horizontale est inférieure à celle de la section de la chambre d'aspiration ménageant ainsi un espace annulaire de guidage de l'air aspiré. Ainsi, grâce à la carcasse du moteur plongeant dans la chambre d'aspiration , on réalise dans l'espace annulaire un effet de guidage et redressement du flux d'air laminaire provenant du compartiment à poussières pour l'amener selon un vortex a direction axiale dans l'orifice d'aspiration, améliorant ainsi le rendement du ventilateur .Still for the purpose of optimizing the flow of air and compact arrangement of the various elements constituting the electric brush, the invention provides that the intermediate chamber contains the fan drive motor which comprises a carcass of cylindrical general shape whose horizontal section is smaller than that of the section of the suction chamber and thus providing an annular space for guiding the sucked air. Thus, thanks to the carcass of the motor immersed in the suction chamber, an effect of guiding and straightening of the laminar air flow coming from the dust compartment is carried out in the annular space in order to bring it in an axial direction vortex. in the suction port, thus improving the efficiency of the fan.
Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, prise à titre d'exemple non limitatif, en référence aux dessins annexés dans lesquels :The features and advantages of the invention will become apparent from the following description, taken by way of non-limiting example, with reference to the accompanying drawings in which:
La figure 1 est une vue en coupe verticale et longitudinale d'un balai selon l'invention; La figure 2 est une vue de dessus de la figure 1, après enlèvement d'une partie supérieure du boîtier.Figure 1 is a vertical and longitudinal sectional view of a brush according to the invention; Figure 2 is a top view of Figure 1, after removal of an upper portion of the housing.
A la figure 1, on a représenté un balai électrique de nettoyage des sols comprenant un capot 1 esthétique schématisé par des traits interrompus et couvrant un boîtier 2 de forme général parallélépipédique ayant des moyens de déplacement sur le sol . Ces moyens comportent au-moins deux roues latérales R situées dans la région postérieure du boîtier.In Figure 1, there is shown an electric floor cleaning brush comprising an aesthetic cover 1 schematically broken lines and covering a housing 2 of parallelepiped general shape having means for moving on the ground. These means comprise at least two lateral wheels R located in the rear region of the housing.
.Le boîtier 2 comporte une buse d'aspiration 3 équipée d'au moins une brosse 4 qui est entraînée en rotation par un moyen moteur 5 et dont la périphérie vient au contact du sol .Dans l'exemple de réalisation décrit sur les figures , la brosse 4 est unique et du type à rouleau
horizontal s 'étendant transversalement sur presque la totalité de la largeur du boîtier, et la buse 3 est supportée en outre par deux petites roues latérales 6 maintenant une distance de contact appropriée entre la brosse et le sol .The housing 2 comprises a suction nozzle 3 equipped with at least one brush 4 which is rotated by a motor means 5 and whose periphery comes into contact with the ground. In the embodiment described in the figures, the brush 4 is unique and of the roller type horizontal extending transversely over almost the entire width of the housing, and the nozzle 3 is further supported by two small side wheels 6 maintaining an appropriate contact distance between the brush and the ground.
Selon un mode préféré de réalisation de l'invention, le boîtier 2 est formé par au-moins deux coquilles à parois inférieure 7 et supérieure 8 délimitant ainsi entre elles et des cloisons transversales et longitudinales divers compartiments. Ainsi, le boîtier comprend un compartiment à poussières 9 renfermant un filtre 10 et délimité par les parois 7 et 8 des coquilles inférieure et supérieure, et par au-moins une paroi antérieure transversale 11 présentant une ouverture 12 qui vient en communication avec la buse 3 et une paroi postérieure transversale 13, présentant une ouverture de sortie 14 en communication avec un orifice d'aspiration 15 pratiqué dans un carter 16 renfermant un ventilateur 17 du type centrifuge entraîné par un moteur 18. Bien entendu, le carter présente également un orifice de refoulement 19 agencé selon une direction transversale à celle de l'orifice d'aspiration 15 et par lequel l'air est rejeté à l'extérieur du boîtier. Dans la réalisation présente, le boîtier comprend en outre un compartiment technique 20 agencé dans la partie extrême postérieure de ce boîtier et dont l'une des cloisons transversales est constituée par la paroi postérieure 13; l'autre paroi transversale 21 et les parois latérales étant constituées par la paroi périphérique du boîtier.According to a preferred embodiment of the invention, the housing 2 is formed by at least two shells with lower walls 7 and upper 8 thus delimiting between them and transverse and longitudinal partitions various compartments. Thus, the housing comprises a dust compartment 9 enclosing a filter 10 and delimited by the walls 7 and 8 of the upper and lower shells, and by at least one transverse front wall 11 having an opening 12 which comes into communication with the nozzle 3 and a transverse rear wall 13, having an outlet opening 14 in communication with a suction orifice 15 formed in a casing 16 enclosing a fan 17 of the centrifugal type driven by a motor 18. Of course, the casing also has an orifice of delivery 19 arranged in a direction transverse to that of the suction port 15 and through which the air is rejected outside the housing. In the present embodiment, the housing further comprises a technical compartment 20 arranged in the rear end portion of this housing and one of the transverse partitions is constituted by the rear wall 13; the other transverse wall 21 and the side walls being constituted by the peripheral wall of the housing.
Comme on le voit sur la figure 2,1e moyen moteur 5 comprenant un moteur 22 et une courroie 23, le
compartiment technique 20 comprend, d'une part, le moteurAs can be seen in FIG. 2.1, motor means 5 comprising a motor 22 and a belt 23, the technical compartment 20 includes, on the one hand, the engine
22 d'entraînement de la brosse4, tandis que la courroie22 driving the brush4, while the belt
23 est agencée dans un couloir 24 longitudinal et adjacent au compartiment à poussières, et , d'autre part, un accumulateur électrique rechargeable 25 d'alimentation des moteurs 18 et 22.23 is arranged in a longitudinal passage 24 and adjacent to the dust compartment, and on the other hand, a rechargeable electric accumulator 25 for supplying the motors 18 and 22.
Dans une variante non représentée aux figures, l'accumulateur pourrait être remplacé par un transformateur adapté à l'alimentation du moteur et alimenté par un cordon électrique apte à être relié au secteur, mais cette réalisation est moins séduisante du fait de la perte d'autonomie du balai.In a variant not shown in the figures, the battery could be replaced by a transformer adapted to the power supply of the motor and powered by an electrical cord adapted to be connected to the sector, but this embodiment is less attractive because of the loss of autonomy of the broom.
Selon une caractéristique importante de l'invention, la paroi postérieure 13 est agencée à légère distance du filtre 10 , et l'ouverture de sortie 14 débouche dans une chambre 26 intermédiaire et tubulaire à axe vertical dont la région supérieure présente un débouché 27 qui vient s'adapter, de façon étanche, à l'orifice d'aspiration 15 du carter 16, de sorte que ledit carter est positionné à plat au-dessus du boîtier 2 et sous le capot 1.According to an important characteristic of the invention, the rear wall 13 is arranged at a slight distance from the filter 10, and the outlet opening 14 opens into an intermediate and tubular chamber 26 with a vertical axis whose upper region has an outlet 27 which comes adapt, in a sealed manner, to the suction port 15 of the housing 16, so that said housing is positioned flat above the housing 2 and under the hood 1.
Avantageusement, la paroi postérieure 13 présente au niveau de l'ouverture de sortie 14 , sur pratiquement toute sa hauteur, un enfoncement s 'étendant hors du compartiment à poussières pour former la chambre intermédiaire 26.Advantageously, the rear wall 13 has, at practically its entire height, at the level of the outlet opening 14, a recess extending out of the dust compartment to form the intermediate chamber 26.
Selon une autre caractéristique importante de l'invention, la chambre intermédiaire 26 contient le moteur 18 d'entraînement du ventilateur 17 qui comprend une carcasse 28 de forme générale cylindrique dont la section horizontale est inférieure a celle de la section de la chambre 26 ménageant ainsi un espace annulaire 29 de guidage de l'air aspiré.
Grâce à cette combinaison de chambre intermédiaire et de moteur plongeant dans cette chambre, les essais pratiqués démontrent un meilleur écoulement laminaire de l'air dans le compartiment à poussières jusqu'à son redressement dans l'espace annulaire, et un excellent rendement du ventilateur obtenu par le vortex canalisé selon une direction verticale dans ledit espace annulaire Selon un mode de réalisation préférée et dans un but d'aménagement compact des éléments constructifs du balai, la chambre intermédiaire 26 est située transversalement dans le prolongement du compartiment technique 20. Le balai ainsi construit offre une structure compacte regroupant dans un boîtier unique, et dans une direction longitudinale, la buse adjacente au compartiment à poussières , lui même adjacent au compartiment techniqueAccording to another important characteristic of the invention, the intermediate chamber 26 contains the motor 18 for driving the fan 17 which comprises a carcass 28 of generally cylindrical shape whose horizontal section is smaller than that of the section of the chamber 26 thus providing an annular space 29 for guiding the sucked air. Thanks to this combination of intermediate chamber and engine plunging into this chamber, the tests carried out demonstrate a better laminar flow of air in the dust compartment until its recovery in the annular space, and an excellent efficiency of the fan obtained. by the vortex channeled in a vertical direction in said annular space According to a preferred embodiment and for the purpose of compact design of the constructive elements of the blade, the intermediate chamber 26 is located transversely in the extension of the technical compartment 20. The broom and constructed provides a compact structure grouping in a single housing, and in a longitudinal direction, the nozzle adjacent to the dust compartment, itself adjacent to the technical compartment
Afin d'offrir un déplacement commode du balai , les roues R ont leur axe agencé pratiquement dans un plan vertical passant par l'axe du moteur 18 et du ventilateur. Dans un but d'optimisation des flux dans le compartiment à poussière, l'invention prévoit de donner une structure particulière au filtre 10 afin d'offrir une grande surface de filtration tout en préservant un espace d'air autour de ce filtre pour empêcher notamment sa saturation et donc retarder au maximum son colmatage. A cet effet, le filtre 10 présente une forme générale en tronc de pyramide dont la grande base 30 est montée adjacente et de façon étanche sur la paroi antérieure transversale 11 du compartiment à poussières, et dont la petite base 31 est située à distance de la paroi postérieure 13 dudit compartiment, ménageant ainsi un espace conséquent notamment entre les parois supérieure 8 et inférieure 7 dudit compartiment.In order to provide a convenient movement of the blade, the wheels R have their axis arranged substantially in a vertical plane passing through the axis of the motor 18 and the fan. For the purpose of optimizing the flows in the dust compartment, the invention provides for giving the filter 10 a particular structure in order to provide a large filtration surface while preserving an air space around this filter to prevent in particular its saturation and thus delay to the maximum its clogging. For this purpose, the filter 10 has a generally pyramid-shaped trunk whose large base 30 is mounted adjacent and sealingly to the transverse front wall 11 of the dust compartment, and whose small base 31 is located at a distance from the posterior wall 13 of said compartment, thus providing a substantial space especially between the upper 8 and lower walls 7 of said compartment.
Comme on le voit , cet espace croît depuis la paroi antérieure jusqu'à la paroi postérieure sans interruption
Afin de rendre aisé le nettoyage du filtre, ce dernier est monté de façon amovible dans le compartiment à poussières, par exemple par un système a coulisse (non représenté) selon une direction transversale et peut s'extraire dudit compartiment au travers d'une lumière agencée dans la paroi périphérique latérale du boîtier et équipée d'une petite porte pivotante sur le boîtier. Le balai ainsi construit peut fonctionner avec un ventilateur centrifuge de type classique comme décrit précédemment, mais aussi avec un ventilateur de type particulier et préféré tel que représenté sur les figures .As we see, this space grows from the anterior wall to the posterior wall without interruption In order to facilitate the cleaning of the filter, the latter is removably mounted in the dust compartment, for example by a sliding system (not shown) in a transverse direction and can be extracted from said compartment through a light arranged in the lateral peripheral wall of the housing and equipped with a small pivoting door on the housing. The broom thus constructed can operate with a centrifugal fan of conventional type as described above, but also with a particular type of fan and preferred as shown in the figures.
Ainsi et toujours dans un but d'optimisation des performances d'aspiration des poussières, le ventilateur est du type décrit dans le brevet FR 2826851 déposé par la Demanderesse et comprend un corps creux aplati 32 ouvert sur sa périphérie et entraîné en rotation par le moteur 18 dans le carter 16. Ledit corps creux est formé de deux flasques 33 et 34 emprisonnant un jeu de pales 35 et dont l'un 34 présente la forme d'un tronc de cône à paroi latérale incurvée dont la petite base présente un trou axial 36; chaque pale présentant une hauteur décroissante depuis le bord du trou jusqu'à l'ouverture périphérique Le carter présente une portion amont 37 en volute centrée sur l'axe du ventilateur avec son orifice d'aspiration 15 ajusté sur le trou axial 36 et son orifice de refoulement 19 débouchant dans une portion avale divergente 38. Cette portion aval divergente est pourvue de cloisons internes longitudinales , non représentées, pour diviser et ralentir le flux d'air sortant.
D'autres variantes de réalisation de l'invention peuvent être envisagées sans sortir du cadre de l'invention. Ainsi, on peut prévoir de remplacer la brosse horizontale par deux brosses à axe vertical ou incliné situées respectivement de chaque côté de l'embouchure du suceur.
Thus and always for the purpose of optimizing dust suction performance, the fan is of the type described in patent FR 2826851 filed by the Applicant and comprises a flattened hollow body 32 open on its periphery and driven in rotation by the motor. 18 in the casing 16. Said hollow body is formed of two flanges 33 and 34 trapping a set of blades 35 and one of which is in the form of a truncated cone with a curved sidewall whose small base has an axial hole. 36; each blade having a decreasing height from the edge of the hole to the peripheral opening The casing has an upstream portion 37 in volute centered on the axis of the fan with its suction orifice 15 fitted on the axial hole 36 and its orifice discharge nozzle 19 opening into a diverging downstream portion 38. This divergent downstream portion is provided with longitudinal internal partitions, not shown, for dividing and slowing the flow of outgoing air. Other embodiments of the invention may be envisaged without departing from the scope of the invention. Thus, it can be provided to replace the horizontal brush by two brushes with vertical or inclined axis located respectively on each side of the mouth of the nozzle.
Claims
1. Balai électrique de nettoyage des sols comprenant un boîtier (2) ayant des moyens de déplacement sur le sol et comportant une buse d'aspiration (3) équipée d'au moins une brosse (4) qui est entraînée en rotation par un moyen moteur (5) et dont la périphérie vient au contact du sol, un compartiment à poussières (9) renfermant un filtre (10) délimité par au-moins une paroi antérieure transversale (11) présentant une ouverture (12) qui vient en communication avec la buse d'aspiration (3) et une paroi postérieure transversale (13) présentant une ouverture de sortie (14) en communication avec un orifice d'aspiration (15) pratiqué dans un carter (16) renfermant un ventilateur (17) du type centrifuge entraîné par un moteur (18) et présentant un orifice de refoulement (19) agencé selon une direction transversale à celle de l'orifice d'aspiration et par lequel l'air est rejeté à l'extérieur du boîtier, caractérisé en ce que la paroi postérieure (13) est agencée à légère distance du filtre (10), et l'ouverture de sortie (14) débouche dans une chambre (26) intermédiaire et tubulaire à axe sensiblement vertical dont la région supérieure présente un débouché (27) qui vient s'adapter, de façon étanche, à l'orifice d'aspiration (15) du carter (16), de sorte que ledit carter est positionné à plat au-dessus du boîtier (2) .An electric floor cleaning brush comprising a housing (2) having means for moving on the floor and having a suction nozzle (3) equipped with at least one brush (4) which is rotated by means motor (5) and whose periphery comes into contact with the ground, a dust compartment (9) enclosing a filter (10) delimited by at least one transverse front wall (11) having an opening (12) which comes into communication with the suction nozzle (3) and a transverse rear wall (13) having an outlet opening (14) in communication with a suction port (15) in a housing (16) enclosing a fan (17) of the type motor-driven centrifugal centrifuge (18) having a delivery port (19) arranged in a direction transverse to that of the suction port and through which air is discharged outside the housing, characterized in that the rear wall (13) is arranged at a slight distance from the filter (10), and the outlet opening (14) opens into a chamber (26) intermediate and tubular substantially vertical axis whose upper region has an outlet (27) which is adapted, so sealing, at the suction port (15) of the housing (16), so that said housing is positioned flat above the housing (2).
2. Balai électrique selon la revendication 1, caractérisé en ce que la paroi postérieure (13) présente au niveau de l'ouverture de sortie (14), sur pratiquement toute sa hauteur, un enfoncement s' étendant hors du compartiment à poussières pour former la chambre intermédiaire (26) .2. Electric broom according to claim 1, characterized in that the rear wall (13) has at the outlet opening (14), over substantially all its height, a depression extending out of the dust compartment to form the intermediate chamber (26).
3. Balai électrique selon la revendication 1 ou 2 caractérisé en ce que la chambre intermédiaire (26) contient le moteur (18) d'entraînement du ventilateur3. Electric broom according to claim 1 or 2 characterized in that the intermediate chamber (26) contains the motor (18) for driving the fan
(17) qui comprend une carcasse (28) de forme générale cylindrique dont la section horizontale est inférieure à celle de la section de la chambre (26) ménageant ainsi un espace annulaire de guidage de l'air aspiré.(17) which comprises a carcass (28) of generally cylindrical shape whose horizontal section is smaller than that of the section of the chamber (26) thus providing an annular space for guiding the sucked air.
4. Balai électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le ventilateur (17) comprend un corps creux aplati (32) ouvert sur sa périphérie et formé de deux flasques (33 et 34) emprisonnant un jeu de pales (35) et dont l'un (34) présente un trou axial (36); chaque pale présentant une hauteur décroissante depuis le bord du trou (36) jusqu'à l'ouverture périphérique, et en ce que le carter (16) présente une portion amont (37) en volute centrée sur l'axe du ventilateur et débouchant dans une portion avale divergente (38) .4. Electric broom according to any one of the preceding claims, characterized in that the fan (17) comprises a flattened hollow body (32) open on its periphery and formed of two flanges (33 and 34) trapping a set of blades ( 35) and one of which (34) has an axial hole (36); each blade having a decreasing height from the edge of the hole (36) to the peripheral opening, and in that the housing (16) has an upstream portion (37) in volute centered on the axis of the fan and opening into a diverging downstream portion (38).
5. Balai électrique selon la revendication 4 , caractérisé en ce que la portion aval divergente (38) est pourvue de cloisons internes longitudinales pour diviser et ralentir le flux d'air sortant.5. Electric broom according to claim 4, characterized in that the divergent downstream portion (38) is provided with longitudinal internal partitions to divide and slow the flow of outgoing air.
6. Balai électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le filtre (10) présente une forme générale en tronc de pyramide dont la grande base (30) est montée adjacente et de façon étanche sur la paroi antérieure transversale6. Electric broom according to any one of the preceding claims, characterized in that the filter (10) has a generally truncated pyramid shape whose large base (30) is mounted adjacent and sealingly on the transverse front wall.
(11) du compartiment à poussières (9), et dont la petite base (31) est située à distance de la paroi postérieure (13) dudit compartiment, ménageant ainsi un espace conséquent notamment entre des parois supérieure (8) et inférieure (7) dudit compartiment.(11) of the dust compartment (9), and whose small base (31) is located at a distance from the posterior wall (13) of said compartment, thus providing a substantial space, especially between upper (8) and lower (7) walls of said compartment.
7. Balai électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le. boîtier (2) contient en outre un compartiment technique7. Electric broom according to any one of the preceding claims, characterized in that the. housing (2) further contains a technical compartment
(20) agencé dans la partie extrême postérieure et dont l'une des parois transversales est constituée par la paroi postérieure (13) et dont l'un des côtés latéraux est constitué par une paroi de la chambre intermédiaire(20) arranged in the posterior end and of which one of the transverse walls is constituted by the rear wall (13) and one of the lateral sides of which is constituted by a wall of the intermediate chamber
(26) .(26).
8.Balai électrique selon la revendication 7, caractérisé en ce que le compartiment technique (20) comprend un moteur (22) d'entraînement de la brosse (4) et un accumulateur électrique rechargeable (25) d'alimentation des moteurs de la brosse et du ventilateur (17) .8. Electric balance according to claim 7, characterized in that the technical compartment (20) comprises a motor (22) for driving the brush (4) and a rechargeable electric accumulator (25) for supplying the motors of the brush and the fan (17).
9 Balai électrique selon la revendications 8 , caractérisé en ce que la chambre intermédiaire (26) est agencée transversalement et dans le prolongement du compartiment technique (20)9 electric broom according to claim 8, characterized in that the intermediate chamber (26) is arranged transversely and in the extension of the technical compartment (20)
10 Balai électrique selon l'une des revendications précédentes, caractérisé en ce l'ensemble moteur (18) et ventilateur (17) est fixé de manière démontable sur des plots (P) solidaires de la paroi inférieure (7) . 10 electric broom according to one of the preceding claims, characterized in that the motor assembly (18) and fan (17) is removably attached to the pads (P) integral with the bottom wall (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07731742A EP1996055A2 (en) | 2006-03-14 | 2007-03-14 | Electric broom for cleaning the floor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0602210A FR2898480B1 (en) | 2006-03-14 | 2006-03-14 | ELECTRIC BRUSH CLEANING SOIL |
| FR0602210 | 2006-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007104896A2 true WO2007104896A2 (en) | 2007-09-20 |
| WO2007104896A3 WO2007104896A3 (en) | 2007-12-21 |
Family
ID=37441616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2007/050926 WO2007104896A2 (en) | 2006-03-14 | 2007-03-14 | Electric broom for cleaning the floor |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1996055A2 (en) |
| FR (1) | FR2898480B1 (en) |
| WO (1) | WO2007104896A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2278906B1 (en) | 2008-03-06 | 2016-11-16 | Tennant Company | Integral vacuum fan housing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB896750A (en) * | 1957-10-16 | 1962-05-16 | Hoover Ltd | Improvements relating to suction cleaners |
| US5500979A (en) * | 1994-04-02 | 1996-03-26 | Firma Fedag | Vacuum cleaner |
| US5664285A (en) * | 1996-01-11 | 1997-09-09 | Black & Decker Inc. | Vacuum cleaner with combined filter element and collection unit |
| WO2000025653A1 (en) * | 1998-11-02 | 2000-05-11 | Kabushiki Kaisha Kankyo | Circulation air type cleaner |
| EP1068827A2 (en) * | 1999-07-06 | 2001-01-17 | Claude Brenot | Floor cleaning device |
| WO2002069775A2 (en) * | 2001-03-07 | 2002-09-12 | Alfred Kärcher Gmbh & Co. Kg | Sweeper |
-
2006
- 2006-03-14 FR FR0602210A patent/FR2898480B1/en not_active Expired - Fee Related
-
2007
- 2007-03-14 EP EP07731742A patent/EP1996055A2/en not_active Withdrawn
- 2007-03-14 WO PCT/FR2007/050926 patent/WO2007104896A2/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB896750A (en) * | 1957-10-16 | 1962-05-16 | Hoover Ltd | Improvements relating to suction cleaners |
| US5500979A (en) * | 1994-04-02 | 1996-03-26 | Firma Fedag | Vacuum cleaner |
| US5664285A (en) * | 1996-01-11 | 1997-09-09 | Black & Decker Inc. | Vacuum cleaner with combined filter element and collection unit |
| WO2000025653A1 (en) * | 1998-11-02 | 2000-05-11 | Kabushiki Kaisha Kankyo | Circulation air type cleaner |
| EP1068827A2 (en) * | 1999-07-06 | 2001-01-17 | Claude Brenot | Floor cleaning device |
| WO2002069775A2 (en) * | 2001-03-07 | 2002-09-12 | Alfred Kärcher Gmbh & Co. Kg | Sweeper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2278906B1 (en) | 2008-03-06 | 2016-11-16 | Tennant Company | Integral vacuum fan housing |
| EP2278906B2 (en) † | 2008-03-06 | 2020-11-04 | Tennant Company | Integral vacuum fan housing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007104896A3 (en) | 2007-12-21 |
| FR2898480A1 (en) | 2007-09-21 |
| FR2898480B1 (en) | 2008-06-20 |
| EP1996055A2 (en) | 2008-12-03 |
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