EP3097816B1 - Accessory for blowing hairstyling device and device provided with same - Google Patents

Accessory for blowing hairstyling device and device provided with same Download PDF

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Publication number
EP3097816B1
EP3097816B1 EP16178460.8A EP16178460A EP3097816B1 EP 3097816 B1 EP3097816 B1 EP 3097816B1 EP 16178460 A EP16178460 A EP 16178460A EP 3097816 B1 EP3097816 B1 EP 3097816B1
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EP
European Patent Office
Prior art keywords
annular
diffusion
accessory
accessory according
air
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EP16178460.8A
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German (de)
French (fr)
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EP3097816A1 (en
Inventor
Martial Maisonneuve
Sylvie Hoet
Xavier Vacheron
Nicolas Lauchet
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SEB SA
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SEB SA
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Publication of EP3097816A1 publication Critical patent/EP3097816A1/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/48—Hair-drying combs or hair-drying brushes, with internal heating means
    • A45D20/50—Hair-drying combs or hair-drying brushes, with internal heating means and provision for an air stream
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/52—Hair-drying combs or hair-drying brushes, adapted for heating by an external heating source, e.g. air stream

Definitions

  • the present invention relates to the technical field of hairdryers and, in particular, hand-held electric hairdryers used by professionals and / or individuals.
  • the invention relates to blower brushes.
  • a hand blower generally comprises an elongated tubular body that is open at both ends, one of which defines an air inlet and the other an air outlet adapted to carry a removable accessory or not.
  • the tubular body encloses a motor-fan unit which comprises a propeller integral with the drive shaft of an electric motor. Most often the tubular body has dimensions adapted to form a handle and allow its grip in direct hand.
  • the tubular body is furthermore equipped with a connection cord to the electrical network as well as control members for the operation of the electric motor.
  • the fan motor unit sucks air through the inlet located at the rear of the tubular body to push back through the outlet located at the front of the latter.
  • the blower brush comprises, inside the tubular body, downstream of the propeller means for electric heating of the blown air.
  • the blower brush is equipped with a tubular accessory comprising on its periphery openings for diffusing the blown air and optionally bristles and / or pins.
  • the brush uses a motor-fan group of high power, for example of the order of 1000W.
  • a patent application JP2013059580 proposed to incorporate inside the tubular accessory air deflection means comprising an axial hub which carries radial fins directing the air blown towards the diffusion openings.
  • blower brush gives overall satisfaction with regard to its primary function of hair drying.
  • quality of the air diffusion it is clear that notwithstanding the power of the motor-fan unit air does not diffuse evenly over the length of the accessory and that the temperature blown air is also not uniform.
  • blower brush has the disadvantage of being particularly noisy which induces fatigue during prolonged use by a professional or a nuisance for the user and those around him.
  • the document GB2097669 discloses a blower accessory comprising a diffusion tube and air deflection means.
  • annular deflector comprising a central opening, that is to say an open deflector and free of obstacles in its center, ensures a better homogeneity of the diffusion of the air blown on the length of the diffusion chamber without inducing the pressure losses such that those resulting from the means of deflection according to demand JP2013059580 .
  • the passage section of the lateral diffusion openings arranged after the deflector decreases from one opening to the other in the direction F1 of the air flow. .
  • This can be reproduced after each deflector when the accessory has several.
  • This deflector combination followed, in the direction of passage of the air, by an evolutive section (preferably diminished when in combination with an annular baffle) openings improves the homogeneity of the diffusion of the air blown along the length of the diffusion chamber without inducing losses.
  • the central opening of each deflector has a circular shape.
  • each deflector is coaxial with the axis ⁇ of the diffusion chamber.
  • the deflection means comprise at least two annular deflectors remote from each other along the axis ⁇ .
  • the implementation of several deflectors makes it possible to homogenize the diffusion of air along the diffusion chamber.
  • the passage section of the central opening of the baffles decreases from an annular baffle to the next annular baffle in the direction of flow of air from the inlet.
  • the annular deflectors divide the diffusion chamber into compartments of length, measured parallel to the axis ⁇ , substantially equal. This variant allows also to maintain the homogeneity of the diffusion by compensating for the losses of load.
  • the annular deflectors divide the diffusion chamber into compartments and, for the same compartment, the passage cross section of the diffusion openings decreases from one opening to the other in the F1 direction. of the flow of air.
  • two consecutive annular deflectors are connected by at least one spacer. This variant makes it easier to install the annular baffles during assembly of the accessory according to the invention.
  • each spacer is located in contact with the inner face of the peripheral wall and has a shape complementary to the latter. This variant makes it possible to limit or even eliminate the influence of the spacers on the flow of air in the diffusion chamber.
  • each annular baffle comprises a central opening bordered by an annular wall extending to the inner face of the peripheral wall.
  • the outer edge of the annular wall is in contact with the inner surface of the peripheral wall. This arrangement limits or even prevents the passage of air between the annular baffle and the peripheral wall so as to reduce operating noise.
  • the face, said downstream, of the annular wall, oriented towards the adaptation end, of each annular baffle converges towards the central opening.
  • the face facing the adaptation end diverges from the central opening to the peripheral wall so as to gradually bend the direction of air flow to reduce the pressure losses and airborne noise.
  • the diverging character should be interpreted as opposed to a flat surface that would extend perpendicular to the ⁇ axis and the flow of air from the central opening to the peripheral wall.
  • the face facing the entrance may, for example, have a truncated-pyramidal shape with the apex facing the fitting end.
  • the face, said downstream, of the annular wall facing the adaptation end of each deflector is concave.
  • a concave shape makes it possible to optimize the progressiveness of the inflection of the air flow so as to reduce the pressure losses as much as possible.
  • the face facing the adapter end has, in axial cross section, an arcuate shape whose recess is oriented towards the adapter end.
  • the tangent to the face facing the fitting end may be substantially parallel to the axis ⁇ , while at the level of the peripheral wall, the tangent to the face facing the adaptation end may be substantially normal to the axis ⁇ .
  • the concave character of the face facing the fitting end imparts scoop shape and function to the annular baffle.
  • the radius of curvature of the face, said downstream, oriented towards the end of adaptation of the annular wall of the annular deflectors increases from an annular baffle to the following annular baffle in the direction of flow air from the adapter end. This increase in the radius of curvature makes it possible, in particular, to compensate the pressure losses in the diffusion chamber and to optimize the uniformity of the diffusion.
  • the outer surface of the peripheral wall has a cylindrical shape of revolution of axis ⁇ .
  • the diffusion openings are distributed over the length and the circumference of the peripheral wall. In a preferred but not exclusive manner, the diffusion openings are uniformly distributed on the peripheral wall.
  • the diffusion openings may have different shapes.
  • the diffusion openings may have a circular or oval shape.
  • the diffusion openings may also have an elongate or oblong shape oriented parallel or inclined relative to the axis ⁇ .
  • the diffusion openings may also have a polygonal shape such as triangular or square. It should be noted that the diffusion openings of the same accessory may have all the same shapes and dimensions or, conversely, have different shapes and / or dimensions.
  • the accessory comprises bristles and / or pins extending radially outside the peripheral wall.
  • the accessory is intended to be movable in axial rotation on itself. It is for example driven by a geared motor.
  • a hairdressing apparatus blowing according to the invention as illustrated in FIG. figure 1 and designated as a whole by the reference A, comprises an elongate hollow body 1 extending along a longitudinal axis ⁇ .
  • the hollow body 1 comprises an air inlet 2 located, according to the example shown, at the rear of the body 1.
  • the hollow body 1 also comprises, at its front, an outlet end 3 of the air.
  • the hairdressing apparatus A also comprises a motor-fan unit 4 located between the inlet 2 and the outlet 3, and adapted to suck the air through the inlet 2 and return it through the outlet 3 as shown by the arrows F1 .
  • the motor-fan unit 4 comprises an electric motor 5 whose drive shaft is secured to a propeller or turbine 6.
  • the hairdressing apparatus A also comprises, downstream of the motor-fan unit 4 with respect to the direction F1 of air circulation, electric means 7 for heating the air.
  • the motor-fan unit 4 and the heating means 7 are then controlled by control means 8 accessible from the outside of the apparatus A.
  • the power supply of the hairdressing apparatus A is effected by means of a cord 9 for connection to the electrical network being understood that an apparatus according to the invention may also comprise a battery power supply system.
  • the body 1 has a generally cylindrical shape adapted to allow grip of the hairstyling apparatus A in a region located, for example, at the level of the motor-fan unit 4.
  • the outlet end 3 of the hairdressing apparatus A is further adapted to receive an accessory 20 for a blower apparatus according to the invention.
  • the accessory 20 comprises an elongate diffusion tube 21 of axis ⁇ .
  • the diffusion tube 21 has an open end 22 adapted to the apparatus of hairstyle A at its outlet end 3.
  • the adapter end 22 of the accessory 20 and the outlet end 3 of the apparatus A are preferably adapted to allow a rotational movement of the accessory on itself around the ⁇ axis.
  • the accessory 20 can then be removably or non-detachably adapted to the hairdressing apparatus A.
  • the end 23, opposite to the adapter end 22, of the diffusion tube 21 is at least partly, in the present case completely, closed by, according to the illustrated example, a plug 24 attached to the end 23
  • the diffusion tube 21 then defines a diffusion chamber 25 which is situated between the ends 22 and 23 and which extends along the axis ⁇ , presenting, in the present case, a symmetry of revolution with respect to the latter. .
  • the diffusion chamber 25 comprises a peripheral wall 26 which has an outer surface having a cylindrical shape of revolution of axis ⁇ .
  • the peripheral wall 26 comprises air diffusion openings 27 which provide communication between the external medium and the diffusion chamber 25.
  • the openings 27 are lateral and are distributed along the length and around the diffusion chamber 25. so as to ensure a diffusion as uniform as possible, around the diffusion chamber 25, of the air blown by the hairstyling apparatus A.
  • the accessory 20 also includes bristles or pins 28 which extend radially outwardly of the peripheral wall 26 of the diffusion chamber 25 so that the accessory 20 forms what is commonly called a cylindrical brush.
  • the pins 28 are in this case aligned in axial rows between which are located axial rows of lateral openings 27.
  • the latter also comprises deflection means 30 which are disposed inside the diffusion chamber 25 as the shows in particular the figure 3 .
  • the deflection means 30 comprise at least one annular deflector open at its center.
  • the means of deflection include three annular deflectors 31, 32, 33 open in their center.
  • the outer circumference of each annular baffle 31, 32, 33 is in contact with the peripheral wall 26, thus preventing air from passing between the outer wall of the baffle and the peripheral wall 26 of the diffusion chamber 25.
  • the deflection means 30 may comprise more or fewer than three annular deflectors.
  • Each annular baffle 31, 32, 33 comprises a circular central opening 35 which is bordered by an annular wall 36 which extends to the inner face 37 of the peripheral wall 26 as shown in FIG. figure 3 .
  • the inner face 37 carries axial ribs 38 and the outer edge 39 of each annular wall 36 has notches 40 of a shape complementary to that of the axial ribs 38.
  • each annular baffle divides the diffusion chamber 25 into four compartments 41, 42, 43, 44 which each have a length substantially equal.
  • each annular baffle is connected to the following deflector by at least one, in this case, three spacers 45 arranged at 120 ° from each other.
  • Each spacer 45 is located in contact with the inner face 37 of the peripheral wall 26 and has a shape complementary to the latter.
  • each spacer 45 has a shape of gutter complementary to the shape of each axial rib 38. This form of gutter gives a certain rigidity to the spacers 45 allowing a forced engagement of the deflection means 30 inside the diffusion chamber 25 by the end 23 before introduction of the plug 24.
  • first annular baffle 31 also carries three feet 46 of a shape similar to that of the spacers 45.
  • the annular baffle 31 is said first in that it is located downstream of the other baffles with respect to the direction of air circulation.
  • the feet 46 are intended to bear on an inner rim 47 of the diffusion chamber 25 during the introduction of the deflection means 30 in the latter.
  • the central opening 35, of each annular baffle 31 to 33 has a circular shape.
  • the passage section S31 of the central opening 35 of the first annular baffle 31 is larger than the passage section S32 of the central opening 35 of the second annular baffle 32 which is itself larger than the bending section.
  • the annular deflectors 31 to 33 are qualified as first second and third relative to the direction of flow of the air blown by the hairdressing apparatus A as indicated by arrows F1.
  • the passage section of the central opening 35 of the deflectors 31 to 33 decreases from a deflector to the following deflector in the flow direction F1 of the air from the open end of adaptation 22.
  • this characteristic results in a reduction in the diameter of the central opening 35 of a deflector to the following deflector in the direction of flow F1 of the air from the adaptation end 22.
  • This reduction of the passage sections S31 to S33 guides the flow of air to the outside.
  • each downstream face 50 converges towards the central opening 35.
  • each downstream face 50 presents plus, a concave shape.
  • each downstream face 50 has cross-sectional cross-section as is more particularly apparent from the figure 5 an arcuate shape corresponding to an arc.
  • the radius of curvature R31 of the downstream face 50 of the first annular baffle 31 is smaller than the radius of curvature R32 of the downstream face 50 of the second annular baffle 32 while the radius of curvature R32 of the downstream face 50 of the second baffle Annular 32 itself is smaller than the radius of curvature R33 of the downstream face 50 of the third annular baffle 33.
  • each annular baffle increases from one annular deflector to the other in the direction F1 flow of air from the adapter end 22. This arrangement limits the pressure losses inside the diffusion chamber 25 accompanying the change of direction of the air flow.
  • the diffusion openings 27 have a circular shape and are arranged in annular rows distributed along the diffusion chamber 25.
  • the centers of the diffusion apertures 27 of the same rank are then located in the same plane perpendicular to the axis ⁇ and the diffusion apertures of the same rank have the same diameter.
  • the diameter of the diffusion apertures 27 decreases from one rank to the next, in the flow direction F1 of the air, for the diffusion apertures 27 and the corresponding ranks located in relation to the same compartment.
  • the passage section of the diffusion openings 27 decreases from one opening to the other in the direction F1 of air flow.
  • the peripheral wall 26 comprises three rows Rg1, Rg2 and Rg3, diffusion apertures 27 in relation to the first compartment 41.
  • the diffusion openings 27 of the first row Rg1 have a diameter greater than that of the second row of diffusion openings Rg2 whose diffusion openings 27 have a diameter greater than that of the third row of diffusion openings Rg3.
  • the first rows Rg1 have diffusion openings 27 whose diameter is substantially equal from one compartment to another, it is the same for the second rows and for, the case where appropriate, the third rows Rg3.
  • the diffusion openings have a circular shape.
  • the diffusion apertures may have any other shape such as, for example, oblong.

Description

La présente invention concerne le domaine technique des sèche-cheveux et, notamment, des sèche-cheveux électriques à main utilisés par les professionnels et/ou les particuliers. Dans une application préférée mais non exclusive, l'invention se rapporte aux brosses soufflantes.The present invention relates to the technical field of hairdryers and, in particular, hand-held electric hairdryers used by professionals and / or individuals. In a preferred but not exclusive application, the invention relates to blower brushes.

Une brosse soufflante à main comprend généralement un corps tubulaire allongé qui est ouvert à ses deux extrémités dont l'une définit une entrée d'air et l'autre une sortie d'air adaptée pour porter un accessoire amovible ou non. Le corps tubulaire renferme un groupe moto-ventilateur qui comprend une hélice solidaire de l'arbre d'entraînement d'un moteur électrique. Le plus souvent le corps tubulaire présente des dimensions adaptées pour former une poignée de préhension et permettre sa prise en main directe. Le corps tubulaire est, en outre, équipé d'un cordon de raccordement au réseau électrique ainsi que d'organes de commande du fonctionnement du moteur électrique. Pendant le fonctionnement du sèche-cheveux, le groupe moto ventilateur aspire de l'air par l'entrée située à l'arrière du corps tubulaire pour le refouler par la sortie située à l'avant de ce dernier. Généralement, la brosse soufflante comprend, à l'intérieur du corps tubulaire, en aval de l'hélice des moyens de chauffage électrique de l'air soufflé.A hand blower generally comprises an elongated tubular body that is open at both ends, one of which defines an air inlet and the other an air outlet adapted to carry a removable accessory or not. The tubular body encloses a motor-fan unit which comprises a propeller integral with the drive shaft of an electric motor. Most often the tubular body has dimensions adapted to form a handle and allow its grip in direct hand. The tubular body is furthermore equipped with a connection cord to the electrical network as well as control members for the operation of the electric motor. During the operation of the hair dryer, the fan motor unit sucks air through the inlet located at the rear of the tubular body to push back through the outlet located at the front of the latter. Generally, the blower brush comprises, inside the tubular body, downstream of the propeller means for electric heating of the blown air.

Pour permettre une mise en forme des cheveux au cours de leur séchage, la brosse soufflante est équipée d'un accessoire tubulaire comprenant sur sa périphérie des ouvertures de diffusion de l'air soufflé ainsi qu'éventuellement des poils et/ou des picots. Afin, d'assurer un séchage aussi efficace que possible en obtenant une bonne diffusion de l'air par les orifices de l'accessoire, la brosse met en oeuvre un groupe moto-ventilateur de forte puissance par exemple de l'ordre de 1000W. De même, en vue de favoriser cette bonne diffusion, une demande de brevet JP2013059580 a proposé d'incorporer à l'intérieur de l'accessoire tubulaire des moyens de déflection de l'air comprenant un moyeu axial qui porte des ailettes radiales orientant l'air soufflé vers les ouvertures de diffusion.To allow shaping of the hair during drying, the blower brush is equipped with a tubular accessory comprising on its periphery openings for diffusing the blown air and optionally bristles and / or pins. In order to ensure drying as efficient as possible by obtaining a good diffusion of air through the orifices of the accessory, the brush uses a motor-fan group of high power, for example of the order of 1000W. In the same way, in order to favor this good diffusion, a patent application JP2013059580 proposed to incorporate inside the tubular accessory air deflection means comprising an axial hub which carries radial fins directing the air blown towards the diffusion openings.

Une telle brosse soufflante donne globalement satisfaction en ce qui concerne sa fonction première de séchage des cheveux. Toutefois, si l'on observe la qualité de la diffusion de l'air, il apparaît clairement que nonobstant la puissance du groupe moto-ventilateur l'air ne se diffuse pas de manière homogène sur la longueur de l'accessoire et que la température de l'air soufflé n'est également pas uniforme. De plus, une telle brosse soufflante présente l'inconvénient d'être particulièrement bruyante ce qui induit une fatigue lors de son usage prolongé par un professionnel ou encore une nuisance pour l'utilisateur et son entourage.Such a blower brush gives overall satisfaction with regard to its primary function of hair drying. However, if we observe the quality of the air diffusion, it is clear that notwithstanding the power of the motor-fan unit air does not diffuse evenly over the length of the accessory and that the temperature blown air is also not uniform. In addition, such a blower brush has the disadvantage of being particularly noisy which induces fatigue during prolonged use by a professional or a nuisance for the user and those around him.

Le document GB2097669 divulgue un accessoire pour appareil de coiffure soufflant comprenant un tube de diffusion et des moyens de déflection de l'air.The document GB2097669 discloses a blower accessory comprising a diffusion tube and air deflection means.

Il est donc apparu le besoin d'un nouveau type d'accessoire qui offre une qualité de diffusion de l'air supérieure à celle des accessoires existants afin d'éventuellement pouvoir réduire la puissance de soufflage voire de chauffage tout en obtenant des performances de séchage au moins équivalentes à celle des brosses soufflantes selon l'art antérieur.It has therefore emerged the need for a new type of accessory that offers an air diffusion quality superior to that of existing accessories in order to possibly be able to reduce the blowing or heating power while obtaining drying performance. at least equivalent to that of the blower brushes according to the prior art.

Afin d'atteindre ces objectifs, l'invention concerne un accessoire pour appareil de coiffure soufflant, comprenant :

  • un tube de diffusion allongé d'axe Δ qui comprend :
    • une extrémité ouverte d'adaptation sur l'appareil de coiffure et l'extrémité opposée étant en partie au moins obturée,
    • entre l'extrémité d'adaptation et l'extrémité opposée, une chambre de diffusion de l'air d'axe Δ,
    • des ouvertures latérales de diffusion de l'air aménagées dans la paroi périphérique de la chambre de diffusion,
  • des moyens de déflection de l'air disposés à l'intérieur de la chambre de diffusion.
Selon l'invention, l'accessoire est caractérisé en ce que les moyens de déflection comprennent au moins un déflecteur annulaire comprenant une ouverture centrale et la circonférence externe de chaque déflecteur annulaire est en contact avec la paroi périphérique.In order to achieve these objectives, the invention relates to an accessory for a hairdressing appliance, comprising:
  • an elongated diffusion tube of axis Δ which comprises:
    • an open fitting end on the hairdressing appliance and the opposite end being partly at least closed,
    • between the adaptation end and the opposite end, an air diffusion chamber of axis Δ,
    • lateral openings of diffusion of the air arranged in the peripheral wall of the diffusion chamber,
  • air deflection means disposed within the diffusion chamber.
According to the invention, the accessory is characterized in that the deflection means comprise at least one annular baffle comprising a central opening and the outer circumference of each annular baffle is in contact with the peripheral wall.

La mise en oeuvre d'un déflecteur annulaire comprenant une ouverture centrale, c'est-à-dire un déflecteur ouvert et dépourvu d'obstacle en son centre, permet d'assurer une meilleure homogénéité de la diffusion de l'air soufflé sur la longueur de la chambre de diffusion sans induire les pertes de charge telles que celles qui résultent des moyens de déflection selon la demande JP2013059580 . Ainsi, à débit en sortie de l'accessoire équivalent, il devient possible de réduire la puissance du groupe moto-ventilateur de l'appareil de coiffure équipé de l'accessoire selon l'invention et donc le bruit généré par ledit appareil de coiffure.The implementation of an annular deflector comprising a central opening, that is to say an open deflector and free of obstacles in its center, ensures a better homogeneity of the diffusion of the air blown on the length of the diffusion chamber without inducing the pressure losses such that those resulting from the means of deflection according to demand JP2013059580 . Thus, at the outlet flow of the equivalent accessory, it becomes possible to reduce the power of the motor-fan unit of the hairdressing apparatus equipped with the accessory according to the invention and therefore the noise generated by said hairdressing appliance.

Selon une caractéristique de l'invention, quand l'accessoire comporte un déflecteur, la section de passage des ouvertures latérales de diffusion agencées après ledit déflecteur diminue d'une ouverture à l'autre dans le sens F1 de l'écoulement de l'air. Ceci peut être reproduit après chaque déflecteur quand l'accessoire en possède plusieurs. Cette combinaison déflecteur suivi, dans le sens de passage de l'air, par une section évolutive (de préférence diminuée quand en combinaison avec un déflecteur annulaire) des ouvertures améliore l'homogénéité de la diffusion de l'air soufflé sur la longueur de la chambre de diffusion sans induire les pertes de charge.According to one characteristic of the invention, when the accessory comprises a deflector, the passage section of the lateral diffusion openings arranged after the deflector decreases from one opening to the other in the direction F1 of the air flow. . This can be reproduced after each deflector when the accessory has several. This deflector combination followed, in the direction of passage of the air, by an evolutive section (preferably diminished when in combination with an annular baffle) openings improves the homogeneity of the diffusion of the air blown along the length of the diffusion chamber without inducing losses.

Selon une caractéristique de l'invention, l'ouverture centrale de chaque déflecteur possède une forme circulaire.According to one characteristic of the invention, the central opening of each deflector has a circular shape.

Selon une autre caractéristique de l'invention, l'ouverture centrale de chaque déflecteur est coaxiale à l'axe Δ de la chambre de diffusion.According to another characteristic of the invention, the central opening of each deflector is coaxial with the axis Δ of the diffusion chamber.

Selon une forme préférée de réalisation de l'invention caractéristique de l'invention, les moyens de déflection comprennent au moins deux déflecteurs annulaires distants l'un de l'autre le long de l'axe Δ. La mise en oeuvre de plusieurs déflecteurs permet d'homogénéiser la diffusion de l'air le long de la chambre de diffusion.According to a preferred embodiment of the invention that is characteristic of the invention, the deflection means comprise at least two annular deflectors remote from each other along the axis Δ. The implementation of several deflectors makes it possible to homogenize the diffusion of air along the diffusion chamber.

Selon une variante de cette forme préférée de réalisation, la section de passage de l'ouverture centrale des déflecteurs diminue d'un déflecteur annulaire au déflecteur annulaire suivant dans le sens d'écoulement de l'air à partir de l'entrée. Cette variante permet de maintenir l'homogénéité de la diffusion en compensant les pertes de charge.According to a variant of this preferred embodiment, the passage section of the central opening of the baffles decreases from an annular baffle to the next annular baffle in the direction of flow of air from the inlet. This variant makes it possible to maintain the homogeneity of the diffusion by compensating the pressure drops.

Selon une autre variante de la forme préférée de réalisation, les déflecteurs annulaires divisent la chambre de diffusion en compartiments de longueur, mesurée parallèlement à l'axe Δ, sensiblement égale. Cette variante permet également de maintenir l'homogénéité de la diffusion en compensant les pertes de charge.According to another variant of the preferred embodiment, the annular deflectors divide the diffusion chamber into compartments of length, measured parallel to the axis Δ, substantially equal. This variant allows also to maintain the homogeneity of the diffusion by compensating for the losses of load.

Selon encore une autre variante de la forme préférée de réalisation, les déflecteurs annulaires divisent la chambre de diffusion en compartiments et, pour un même compartiment, la section de passage des ouvertures de diffusion diminue d'une ouverture à l'autre dans le sens F1 de l'écoulement de l'air.According to yet another variant of the preferred embodiment, the annular deflectors divide the diffusion chamber into compartments and, for the same compartment, the passage cross section of the diffusion openings decreases from one opening to the other in the F1 direction. of the flow of air.

Selon encore une caractéristique de la forme préférée de réalisation, deux déflecteurs annulaires consécutifs sont liés par au moins une entretoise. Cette variante permet de faciliter la mise en place des déflecteurs annulaires lors de l'assemblage de l'accessoire selon l'invention.According to another characteristic of the preferred embodiment, two consecutive annular deflectors are connected by at least one spacer. This variant makes it easier to install the annular baffles during assembly of the accessory according to the invention.

Selon une variante de cette caractéristique, chaque entretoise est située au contact de la face interne de la paroi périphérique et possède une forme complémentaire de cette dernière. Cette variante permet de limiter voire d'annuler l'influence des entretoises sur l'écoulement de l'air dans la chambre de diffusion.According to a variant of this feature, each spacer is located in contact with the inner face of the peripheral wall and has a shape complementary to the latter. This variant makes it possible to limit or even eliminate the influence of the spacers on the flow of air in the diffusion chamber.

Selon une caractéristique de l'invention, chaque déflecteur annulaire comprend une ouverture centrale bordée par une paroi annulaire qui s'étend jusqu'à la face interne de la paroi périphérique. De manière préférée mais non exclusive, le bord externe de la paroi annulaire est en contact avec la surface interne de la paroi périphérique. Cette disposition limite voire empêche le passage de l'air entre le déflecteur annulaire et la paroi périphérique de manière à réduire les bruits de fonctionnement.According to a characteristic of the invention, each annular baffle comprises a central opening bordered by an annular wall extending to the inner face of the peripheral wall. In a preferred but not exclusive manner, the outer edge of the annular wall is in contact with the inner surface of the peripheral wall. This arrangement limits or even prevents the passage of air between the annular baffle and the peripheral wall so as to reduce operating noise.

Selon une variante de cette caractéristique, la face, dite aval, de la paroi annulaire, orientée vers l'extrémité d'adaptation, de chaque déflecteur annulaire, converge vers l'ouverture centrale. Ainsi, la face orientée vers l'extrémité d'adaptation diverge de l'ouverture centrale vers la paroi périphérique de manière à infléchir progressivement la direction d'écoulement de l'air pour réduire les pertes de charges et les bruits aériens. Le caractère divergent doit s'interpréter par opposition à une surface plane qui s'étendrait perpendiculairement à l'axe Δ et au flux d'air depuis l'ouverture centrale jusqu'à la paroi périphérique. Ainsi, la face orientée vers l'entrée peut, par exemple, présenter une forme tronc-pyramidale avec le sommet orienté vers l'extrémité d'adaptation.According to a variant of this characteristic, the face, said downstream, of the annular wall, oriented towards the adaptation end, of each annular baffle, converges towards the central opening. Thus, the face facing the adaptation end diverges from the central opening to the peripheral wall so as to gradually bend the direction of air flow to reduce the pressure losses and airborne noise. The diverging character should be interpreted as opposed to a flat surface that would extend perpendicular to the Δ axis and the flow of air from the central opening to the peripheral wall. Thus, the face facing the entrance may, for example, have a truncated-pyramidal shape with the apex facing the fitting end.

Selon une autre variante de cette caractéristique, la face, dite aval, de la paroi annulaire orientée vers l'extrémité d'adaptation, de chaque déflecteur, est concave. Une telle forme concave permet d'optimiser la progressivité de l'inflexion du flux d'air de manière à réduire au mieux les pertes de charges. Par concave, il convient d'entendre que la face orientée vers l'extrémité d'adaptation possède, en section droite axiale, une forme arquée dont le creux est orienté vers l'extrémité d'adaptation. Ainsi, au niveau de l'ouverture centrale, la tangente à la face orientée vers l'extrémité d'adaptation peut être sensiblement parallèle à l'axe Δ tandis qu'au niveau de la paroi périphérique, la tangente à la face orientée vers l'extrémité d'adaptation peut être sensiblement normale à l'axe Δ. Le caractère concave de la face orientée vers l'extrémité d'adaptation confère une forme et une fonction d'écope au déflecteur annulaire.According to another variant of this characteristic, the face, said downstream, of the annular wall facing the adaptation end of each deflector, is concave. Such a concave shape makes it possible to optimize the progressiveness of the inflection of the air flow so as to reduce the pressure losses as much as possible. By concave, it should be understood that the face facing the adapter end has, in axial cross section, an arcuate shape whose recess is oriented towards the adapter end. Thus, at the central opening, the tangent to the face facing the fitting end may be substantially parallel to the axis Δ, while at the level of the peripheral wall, the tangent to the face facing the adaptation end may be substantially normal to the axis Δ. The concave character of the face facing the fitting end imparts scoop shape and function to the annular baffle.

Selon une caractéristique de l'invention, le rayon de courbure de la face, dite aval, orientée vers l'extrémité d'adaptation de la paroi annulaire des déflecteurs annulaires augmente d'un déflecteur annulaire au déflecteur annulaire suivant dans le sens d'écoulement de l'air à partir de l'extrémité d'adaptation. Cette augmentation du rayon de courbure permet, notamment, de compenser les pertes de charge dans la chambre de diffusion et d'optimiser l'uniformité de la diffusion.According to a characteristic of the invention, the radius of curvature of the face, said downstream, oriented towards the end of adaptation of the annular wall of the annular deflectors increases from an annular baffle to the following annular baffle in the direction of flow air from the adapter end. This increase in the radius of curvature makes it possible, in particular, to compensate the pressure losses in the diffusion chamber and to optimize the uniformity of the diffusion.

Selon une caractéristique de l'invention, la surface externe de la paroi périphérique possède une forme cylindrique de révolution d'axe Δ.According to one characteristic of the invention, the outer surface of the peripheral wall has a cylindrical shape of revolution of axis Δ.

Selon une autre caractéristique de l'invention, les ouvertures de diffusion sont réparties sur la longueur et le pourtour de la paroi périphérique. De manière préférée mais non exclusive, les ouvertures de diffusion sont uniformément réparties sur la paroi périphérique.According to another characteristic of the invention, the diffusion openings are distributed over the length and the circumference of the peripheral wall. In a preferred but not exclusive manner, the diffusion openings are uniformly distributed on the peripheral wall.

Selon l'invention les ouvertures de diffusion peuvent présenter différentes formes. Ainsi, les ouvertures de diffusion peuvent présenter une forme circulaire ou ovale. Les ouvertures de diffusion peuvent également présenter une forme allongée ou oblongue orientée parallèlement ou inclinée par rapport à l'axe Δ. Les ouvertures de diffusion peuvent aussi posséder une forme polygonale telle que triangulaire ou carrée. Il est à noter que les ouvertures de diffusion d'un même accessoire peuvent présenter toutes les mêmes formes et dimensions ou, au contraire, posséder des formes et/ou des dimensions différentes.According to the invention, the diffusion openings may have different shapes. Thus, the diffusion openings may have a circular or oval shape. The diffusion openings may also have an elongate or oblong shape oriented parallel or inclined relative to the axis Δ. The diffusion openings may also have a polygonal shape such as triangular or square. It should be noted that the diffusion openings of the same accessory may have all the same shapes and dimensions or, conversely, have different shapes and / or dimensions.

Selon encore une autre caractéristique de l'invention, l'accessoire comprend des poils et/ou des picots s'étendant radialement à l'extérieur de la paroi périphérique.According to yet another characteristic of the invention, the accessory comprises bristles and / or pins extending radially outside the peripheral wall.

L'invention concerne également un appareil de coiffure soufflant comprenant :

  • un corps creux qui est ouvert à une extrémité dite de sortie et qui comprend une entrée d'air,
  • un groupe moto-ventilateur disposé dans le corps creux entre l'entrée et la sortie et adapté pour aspirer l'air par l'entrée et le refouler par la sortie.
Selon l'invention l'appareil de coiffure comprend un accessoire conforme à l'invention dont l'extrémité d'adaptation est raccordée à l'extrémité de sortie du corps creux.The invention also relates to a blower apparatus comprising:
  • a hollow body which is open at a so-called outlet end and which comprises an air inlet,
  • a motor-fan unit disposed in the hollow body between the inlet and the outlet and adapted to suck the air through the inlet and back through the outlet.
According to the invention the hairdressing apparatus comprises an accessory according to the invention, the adaptation end of which is connected to the outlet end of the hollow body.

Selon une caractéristique de l'appareil de coiffure conforme à l'invention, l'accessoire est destiné à être mobile en rotation axiale sur lui même. Il est par exemple entrainé par un motoréducteur.According to a characteristic of the hairdressing apparatus according to the invention, the accessory is intended to be movable in axial rotation on itself. It is for example driven by a geared motor.

Bien entendu, les différentes caractéristiques, variantes et formes de mise en oeuvre du procédé selon l'invention peuvent être associées les unes avec les autres selon diverses combinaisons dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres.Of course, the various features, variants and forms of implementation of the method according to the invention can be associated with each other in various combinations to the extent that they are not incompatible or exclusive of each other.

Par ailleurs, diverses autres caractéristiques de l'invention ressortent de la description annexée effectuée en référence aux dessins qui illustrent une forme non limitative de réalisation d'un appareil et d'un accessoire de coiffure conforme à l'invention.

  • La figure 1 est une élévation schématique partiellement arrachée d'un appareil de coiffure soufflant selon l'invention.
  • La figure 2 est une perspective schématique d'un accessoire selon l'invention équipant l'appareil de coiffure illustré à la figure 1.
  • La figure 3 est une perspective schématique arrachée de l'accessoire illustré à la figure 2.
  • La figure 4 est une perspective schématique de moyens de déflection équipant l'accessoire illustré aux figures 2 et 3.
  • La figure 5 est une coupe axiale schématique des moyens de déflection illustrés à la figure 4.
Il est à noter que sur ces figures les éléments structurels et/ou fonctionnels communs aux différentes variantes peuvent présenter les mêmes références.Furthermore, various other features of the invention appear from the attached description with reference to the drawings which illustrate a non-limiting embodiment of an apparatus and a hairdressing accessory according to the invention.
  • The figure 1 is a schematic elevation partially cut away from a blowing hairdressing apparatus according to the invention.
  • The figure 2 is a schematic perspective of an accessory according to the invention equipping the hairdressing apparatus illustrated in FIG. figure 1 .
  • The figure 3 is a schematic perspective torn from the accessory shown in the figure 2 .
  • The figure 4 is a schematic perspective of deflection means equipping the accessory shown in figures 2 and 3 .
  • The figure 5 is a schematic axial section of the deflection means illustrated in FIG. figure 4 .
It should be noted that in these figures the structural and / or functional elements common to the different variants may have the same references.

Un appareil de coiffure soufflant selon l'invention, tel qu'illustré à la figure 1 et désigné dans son ensemble par la référence A, comprend un corps creux allongé 1 s'étendant selon un axe longitudinal Δ. Le corps creux 1 comprend une entrée d'air 2 située, selon l'exemple illustré, à l'arrière du corps 1. Le corps creux 1 comprend également, au niveau de son avant, une extrémité de sortie 3 de l'air. L'appareil de coiffure A comprend aussi un groupe moto-ventilateur 4 situé entre l'entrée 2 et la sortie 3, et adapté pour aspirer l'air par l'entrée 2 et le refouler par la sortie 3 comme le montrent les flèches F1. Le groupe moto-ventilateur 4 comprend un moteur électrique 5 dont l'arbre d'entraînement est solidaire d'une hélice ou turbine 6. Selon l'exemple illustré, l'appareil de coiffure A comprend aussi, en aval du groupe moto-ventilateur 4 par rapport au sens F1 de circulation de l'air, des moyens électriques 7 de chauffage de l'air. Le groupe moto-ventilateur 4 et les moyens de chauffage 7 sont alors pilotés par des moyens de commande 8 accessibles à partir de l'extérieur de l'appareil A. L'alimentation électrique de l'appareil de coiffure A est effectuée au moyen d'un cordon 9 de raccordement au réseau électrique étant entendu qu'un appareil selon l'invention peut également comprendre un système d'alimentation électrique par batterie.A hairdressing apparatus blowing according to the invention, as illustrated in FIG. figure 1 and designated as a whole by the reference A, comprises an elongate hollow body 1 extending along a longitudinal axis Δ. The hollow body 1 comprises an air inlet 2 located, according to the example shown, at the rear of the body 1. The hollow body 1 also comprises, at its front, an outlet end 3 of the air. The hairdressing apparatus A also comprises a motor-fan unit 4 located between the inlet 2 and the outlet 3, and adapted to suck the air through the inlet 2 and return it through the outlet 3 as shown by the arrows F1 . The motor-fan unit 4 comprises an electric motor 5 whose drive shaft is secured to a propeller or turbine 6. According to the illustrated example, the hairdressing apparatus A also comprises, downstream of the motor-fan unit 4 with respect to the direction F1 of air circulation, electric means 7 for heating the air. The motor-fan unit 4 and the heating means 7 are then controlled by control means 8 accessible from the outside of the apparatus A. The power supply of the hairdressing apparatus A is effected by means of a cord 9 for connection to the electrical network being understood that an apparatus according to the invention may also comprise a battery power supply system.

Selon l'exemple illustré, le corps 1 présente une forme générale cylindrique adaptée pour permettre une prise en main de l'appareil de coiffure A dans une région située, par exemple, au niveau du groupe moto-ventilateur 4.According to the illustrated example, the body 1 has a generally cylindrical shape adapted to allow grip of the hairstyling apparatus A in a region located, for example, at the level of the motor-fan unit 4.

Le mode de réalisation d'un tel appareil de coiffure A est bien connu de l'homme du métier de sorte qu'il n'est pas nécessaire de le décrire ici plus en détail.The embodiment of such a hairdressing apparatus A is well known to those skilled in the art so that it is not necessary to describe it here in more detail.

L'extrémité de sortie 3 de l'appareil de coiffure A est en outre adaptée pour recevoir un accessoire 20 pour appareil de coiffure soufflant conforme à l'invention. Comme cela ressort plus particulièrement des figures 2 et 3, l'accessoire 20 comprend un tube de diffusion 21 allongé d'axe Δ. Le tube de diffusion 21 possède une extrémité ouverte 22 d'adaptation sur l'appareil de coiffure A au niveau de son extrémité de sortie 3. L'extrémité d'adaptation 22 de l'accessoire 20 et l'extrémité de sortie 3 de l'appareil A sont de préférence adaptées pour permettre un mouvement de rotation de l'accessoire sur lui-même autour de l'axe Δ. L'accessoire 20 peut alors être adapté de manière amovible ou non sur l'appareil de coiffure A.The outlet end 3 of the hairdressing apparatus A is further adapted to receive an accessory 20 for a blower apparatus according to the invention. As is apparent in particular from figures 2 and 3 the accessory 20 comprises an elongate diffusion tube 21 of axis Δ. The diffusion tube 21 has an open end 22 adapted to the apparatus of hairstyle A at its outlet end 3. The adapter end 22 of the accessory 20 and the outlet end 3 of the apparatus A are preferably adapted to allow a rotational movement of the accessory on itself around the Δ axis. The accessory 20 can then be removably or non-detachably adapted to the hairdressing apparatus A.

L'extrémité 23, opposée à l'extrémité d'adaptation 22, du tube de diffusion 21 est en partie au moins, dans le cas présent complètement, obturée par, selon l'exemple illustré, un bouchon 24 rapporté sur l'extrémité 23. Le tube de diffusion 21 définit alors une chambre de diffusion 25 qui se trouve située entre les extrémités 22 et 23 et qui s'étend selon l'axe Δ en présentant, dans le cas présent, une symétrie de révolution par rapport à ce dernier.The end 23, opposite to the adapter end 22, of the diffusion tube 21 is at least partly, in the present case completely, closed by, according to the illustrated example, a plug 24 attached to the end 23 The diffusion tube 21 then defines a diffusion chamber 25 which is situated between the ends 22 and 23 and which extends along the axis Δ, presenting, in the present case, a symmetry of revolution with respect to the latter. .

La chambre de diffusion 25 comprend une paroi périphérique 26 qui possède une surface externe présentant une forme cylindrique de révolution d'axe Δ. La paroi périphérique 26 comprend des ouvertures 27 de diffusion de l'air qui assurent une communication entre le milieu extérieur et la chambre de diffusion 25. Les ouvertures 27 sont latérales et sont réparties sur la longueur et le pourtour de la chambre de diffusion 25 de manière à assurer une diffusion aussi uniforme que possible, autour de la chambre de diffusion 25, de l'air soufflé par l'appareil de coiffure A.The diffusion chamber 25 comprises a peripheral wall 26 which has an outer surface having a cylindrical shape of revolution of axis Δ. The peripheral wall 26 comprises air diffusion openings 27 which provide communication between the external medium and the diffusion chamber 25. The openings 27 are lateral and are distributed along the length and around the diffusion chamber 25. so as to ensure a diffusion as uniform as possible, around the diffusion chamber 25, of the air blown by the hairstyling apparatus A.

L'accessoire 20 comprend également des poils ou des picots 28 qui s'étendent radialement à l'extérieur de la paroi périphérique 26 de la chambre de diffusion 25 de sorte que l'accessoire 20 forme ce qui est communément appelé une brosse cylindrique. Les picots 28 sont dans le cas présent alignés en rangées axiales entre lesquelles sont situées des rangées axiales d'ouvertures latérales 27.The accessory 20 also includes bristles or pins 28 which extend radially outwardly of the peripheral wall 26 of the diffusion chamber 25 so that the accessory 20 forms what is commonly called a cylindrical brush. The pins 28 are in this case aligned in axial rows between which are located axial rows of lateral openings 27.

Afin d'assurer une bonne diffusion de l'air soufflé par l'appareil de coiffure A au travers de l'accessoire 20 ce dernier comprend également des moyens de déflection 30 qui sont disposés à l'intérieur de la chambre de diffusion 25 comme le montre plus particulièrement la figure 3.In order to ensure good diffusion of the air blown by the hairdressing apparatus A through the accessory 20, the latter also comprises deflection means 30 which are disposed inside the diffusion chamber 25 as the shows in particular the figure 3 .

Selon l'invention, les moyens de déflection 30 comprennent au moins un déflecteur annulaire ouvert en son centre. Selon l'exemple illustré, les moyens de déflection comprennent trois déflecteurs annulaires 31, 32, 33 ouverts en leur centre. La circonférence externe de chaque déflecteur annulaire 31, 32, 33 est en contact avec la paroi périphérique 26, évitant ainsi que de l'air soufflé ne passe entre la paroi externe du déflecteur et la paroi périphérique 26 de la chambre de diffusion 25. Bien entendu, les moyens de déflection 30 peuvent comprendre plus ou moins de trois déflecteurs annulaires.According to the invention, the deflection means 30 comprise at least one annular deflector open at its center. According to the illustrated example, the means of deflection include three annular deflectors 31, 32, 33 open in their center. The outer circumference of each annular baffle 31, 32, 33 is in contact with the peripheral wall 26, thus preventing air from passing between the outer wall of the baffle and the peripheral wall 26 of the diffusion chamber 25. Of course, the deflection means 30 may comprise more or fewer than three annular deflectors.

Chaque déflecteur annulaire 31, 32, 33 comprend une ouverture centrale 35 circulaire qui est bordée par une paroi annulaire 36 qui s'étend jusqu'à la face interne 37 de la paroi périphérique 26 comme le montre la figure 3. Selon l'exemple illustré et afin d'assurer une immobilisation en rotation axiale des déflecteurs annulaires 31, 32, 33 dans la chambre de diffusion 25, la face interne 37 porte des nervures axiales 38 et le bord extérieur 39 de chaque paroi annulaire 36 possède des encoches 40 d'une forme complémentaire à celle des nervures axiales 38.Each annular baffle 31, 32, 33 comprises a circular central opening 35 which is bordered by an annular wall 36 which extends to the inner face 37 of the peripheral wall 26 as shown in FIG. figure 3 . According to the illustrated example and to ensure immobilization in axial rotation of the annular deflectors 31, 32, 33 in the diffusion chamber 25, the inner face 37 carries axial ribs 38 and the outer edge 39 of each annular wall 36 has notches 40 of a shape complementary to that of the axial ribs 38.

Selon l'exemple illustré, les trois déflecteurs annulaires 31, 32, 33 divisent la chambre de diffusion 25 en quatre compartiments 41, 42, 43, 44 qui possèdent chacun une longueur l sensiblement égale. Afin de définir cette longueur, chaque déflecteur annulaire est lié au déflecteur suivant par au moins une, dans le cas présent, trois entretoises 45 disposées à 120° les unes des autres. Chaque entretoise 45 est située au contact de la face interne 37 de la paroi périphérique 26 et présente une forme complémentaire de cette dernière. Selon l'exemple illustré chaque entretoise 45 possède une forme de gouttière complémentaire de la forme de chaque nervure axiale 38. Cette forme de gouttière confère une certaine rigidité aux entretoises 45 permettant un engagement à force des moyens de déflection 30 à l'intérieur de la chambre de diffusion 25 par l'extrémité 23 avant mise en place du bouchon 24. Par ailleurs, le premier déflecteur annulaire 31 porte également trois pieds 46 de forme analogue à celle des entretoises 45. Le déflecteur annulaire 31 est dit premier en ce qu'il est situé en aval des autres déflecteurs par rapport au sens de circulation de l'air. Les pieds 46 sont destinés à venir en appui sur un rebord intérieur 47 de la chambre de diffusion 25 lors de la mise en place des moyens de déflection 30 dans cette dernière.According to the illustrated example, the three annular baffles 31, 32, 33 divide the diffusion chamber 25 into four compartments 41, 42, 43, 44 which each have a length substantially equal. In order to define this length, each annular baffle is connected to the following deflector by at least one, in this case, three spacers 45 arranged at 120 ° from each other. Each spacer 45 is located in contact with the inner face 37 of the peripheral wall 26 and has a shape complementary to the latter. According to the illustrated example, each spacer 45 has a shape of gutter complementary to the shape of each axial rib 38. This form of gutter gives a certain rigidity to the spacers 45 allowing a forced engagement of the deflection means 30 inside the diffusion chamber 25 by the end 23 before introduction of the plug 24. In addition, the first annular baffle 31 also carries three feet 46 of a shape similar to that of the spacers 45. The annular baffle 31 is said first in that it is located downstream of the other baffles with respect to the direction of air circulation. The feet 46 are intended to bear on an inner rim 47 of the diffusion chamber 25 during the introduction of the deflection means 30 in the latter.

Selon l'exemple illustré, l'ouverture centrale 35, de chaque déflecteur annulaire 31 à 33, possède une forme circulaire. De plus, la section de passage S31 de l'ouverture centrale 35 du premier déflecteur annulaire 31 est plus grande que la section de passage S32 de l'ouverture centrale 35 du deuxième déflecteur annulaire 32 qui est elle-même plus grande que la section de passage S33 de l'ouverture centrale 35 du troisième déflecteur 33. Les déflecteurs annulaires 31 à 33 sont qualifiés de premier deuxième et troisième par rapport au sens d'écoulement de l'air soufflé par l'appareil de coiffure A tel qu'indiqué par les flèches F1. Ainsi, la section de passage de l'ouverture centrale 35 des déflecteurs 31 à 33 diminue d'un déflecteur au déflecteur suivant dans le sens d'écoulement F1 de l'air à partir de l'extrémité ouverte d'adaptation 22. Dans le cadre présent et compte tenu de la forme circulaire des ouvertures centrales 35, cette caractéristique se traduit par une réduction du diamètre de l'ouverture centrale 35 d'un déflecteur au déflecteur suivant dans le sens d'écoulement F1 de l'air à partir de l'extrémité d'adaptation 22. Cette diminution des sections de passage S31 à S33 permet de guider le flux d'air vers l'extérieur.According to the illustrated example, the central opening 35, of each annular baffle 31 to 33, has a circular shape. In addition, the passage section S31 of the central opening 35 of the first annular baffle 31 is larger than the passage section S32 of the central opening 35 of the second annular baffle 32 which is itself larger than the bending section. passage S33 of the central opening 35 of the third deflector 33. The annular deflectors 31 to 33 are qualified as first second and third relative to the direction of flow of the air blown by the hairdressing apparatus A as indicated by arrows F1. Thus, the passage section of the central opening 35 of the deflectors 31 to 33 decreases from a deflector to the following deflector in the flow direction F1 of the air from the open end of adaptation 22. In the In view of the circular shape of the central openings 35, this characteristic results in a reduction in the diameter of the central opening 35 of a deflector to the following deflector in the direction of flow F1 of the air from the adaptation end 22. This reduction of the passage sections S31 to S33 guides the flow of air to the outside.

Selon l'exemple illustré, la face 50 de chaque paroi annulaire 36 orientée vers l'extrémité d'adaptation 22, dite également face aval 50, converge vers l'ouverture centrale 35. Dans le cas présent, chaque face aval 50 présente, de plus, une forme concave. Ici, chaque face aval 50 présente en section droite transversale comme cela ressort plus particulièrement de la figure 5 une forme arquée correspondant à un arc de cercle. Par ailleurs, le rayon de courbure R31 de la face aval 50 du premier déflecteur annulaire 31 est inférieur au rayon de courbure R32 de la face aval 50 du deuxième déflecteur annulaire 32 tandis que le rayon de courbure R32 que la face aval 50 du deuxième déflecteur annulaire 32 est lui-même inférieur au rayon de courbure R33 de la face aval 50 du troisième déflecteur annulaire 33. Ainsi, le rayon de courbure de la face aval de chaque déflecteur annulaire augmente d'un déflecteur annulaire à l'autre dans le sens d'écoulement F1 de l'air à partir de l'extrémité d'adaptation 22. Cette disposition permet de limiter les pertes de charge à l'intérieur de la chambre de diffusion 25 en accompagnant le changement de direction du flux d'air.According to the illustrated example, the face 50 of each annular wall 36 facing the matching end 22, also called downstream face 50, converges towards the central opening 35. In the present case, each downstream face 50 presents plus, a concave shape. Here, each downstream face 50 has cross-sectional cross-section as is more particularly apparent from the figure 5 an arcuate shape corresponding to an arc. Furthermore, the radius of curvature R31 of the downstream face 50 of the first annular baffle 31 is smaller than the radius of curvature R32 of the downstream face 50 of the second annular baffle 32 while the radius of curvature R32 of the downstream face 50 of the second baffle Annular 32 itself is smaller than the radius of curvature R33 of the downstream face 50 of the third annular baffle 33. Thus, the radius of curvature of the downstream face of each annular baffle increases from one annular deflector to the other in the direction F1 flow of air from the adapter end 22. This arrangement limits the pressure losses inside the diffusion chamber 25 accompanying the change of direction of the air flow.

Par ailleurs, selon l'exemple illustré, les ouvertures de diffusion 27 présentent une forme circulaire et sont disposées en rangs annulaires répartis le long de la chambre de diffusion 25. Les centres des ouvertures de diffusion 27 d'un même rang sont alors situés dans un même plan perpendiculaire à l'axe Δ et les ouvertures de diffusion d'un même rang possèdent un même diamètre.Furthermore, according to the illustrated example, the diffusion openings 27 have a circular shape and are arranged in annular rows distributed along the diffusion chamber 25. The centers of the diffusion apertures 27 of the same rank are then located in the same plane perpendicular to the axis Δ and the diffusion apertures of the same rank have the same diameter.

Par ailleurs, afin d'homogénéiser la sortie du flux d'air sur chacune des ouvertures de diffusion 27, au sein de chaque compartiment 41 à 44, le diamètre des ouvertures de diffusion 27 diminue d'un rang à l'autre, dans le sens d'écoulement F1 de l'air, pour les ouvertures de diffusion 27 et les rangs correspondants situés en relation avec un même compartiment. Ainsi, pour un même compartiment, la section de passage des ouvertures de diffusion 27 diminue d'une ouverture à l'autre dans le sens F1 de d'écoulement de l'air. Dans le cas présent et comme le montre la figure 1, la paroi périphérique 26 comprend trois rangs Rg1, Rg2 et Rg3, d'ouvertures de diffusion 27 en relation avec le premier compartiment 41. Les ouvertures de diffusion 27 du premier rang Rg1 possèdent un diamètre supérieur à celui des ouvertures de diffusion du deuxième rang Rg2 dont les ouvertures de diffusion 27 possèdent un diamètre supérieur à celui des ouvertures de diffusion du troisième rang Rg3.Moreover, in order to homogenize the outlet of the air flow on each of the diffusion apertures 27, within each compartment 41 to 44, the diameter of the diffusion apertures 27 decreases from one rank to the next, in the flow direction F1 of the air, for the diffusion apertures 27 and the corresponding ranks located in relation to the same compartment. Thus, for the same compartment, the passage section of the diffusion openings 27 decreases from one opening to the other in the direction F1 of air flow. In the present case and as shown in figure 1 , the peripheral wall 26 comprises three rows Rg1, Rg2 and Rg3, diffusion apertures 27 in relation to the first compartment 41. The diffusion openings 27 of the first row Rg1 have a diameter greater than that of the second row of diffusion openings Rg2 whose diffusion openings 27 have a diameter greater than that of the third row of diffusion openings Rg3.

Il en est de même pour les deuxième 42 et troisième 43 compartiments qui possèdent chacun trois rangs d'ouvertures de diffusion 27, ainsi que pour le quatrième compartiment 44 qui possède deux rangs d'ouvertures de diffusion 27.It is the same for the second 42 and third 43 compartments which each have three rows of diffusion openings 27, as well as for the fourth compartment 44 which has two rows of diffusion openings 27.

Il doit être noté que selon l'exemple illustré les premiers rangs Rg1 possèdent des ouvertures de diffusion 27 dont le diamètre est sensiblement égal d'un compartiment à l'autre, il en est de même pour les deuxièmes rangs ainsi que pour, le cas échéant, les troisièmes rangs Rg3.It should be noted that according to the illustrated example the first rows Rg1 have diffusion openings 27 whose diameter is substantially equal from one compartment to another, it is the same for the second rows and for, the case where appropriate, the third rows Rg3.

Selon l'exemple de réalisation décrit précédemment en relation avec les figures ; les ouvertures de diffusion possèdent une forme circulaire. Toutefois, selon l'invention les ouvertures de diffusion peuvent présenter une toute autre forme telle que, par exemple, oblongue.According to the embodiment described above in connection with the figures; the diffusion openings have a circular shape. However, according to the invention, the diffusion apertures may have any other shape such as, for example, oblong.

Bien entendu, diverses autres modifications peuvent être apportées à un accessoire pour appareil de coiffure soufflant conforme à l'invention dans le cadre des revendications annexées.Of course, various other modifications may be made to an accessory for hairdressing apparatus according to the invention within the scope of the appended claims.

Claims (17)

  1. Accessory for blowing hairdressing appliance comprising:
    - an elongated diffusion tube (21) of axis Δ which comprises:
    -- an open end (22) for adaptation on the hairdressing appliance and the opposite end (23) being at least partially blocked,
    -- between the adaptation end (22) and the opposite end (23), an air diffusion chamber (25) of axis Δ,
    -- lateral air diffusion openings (27) formed in the peripheral wall (26) of the diffusion chamber (25),
    - air deflection means (30) located inside the diffusion chamber (25),
    characterised in that the deflection means (30) comprise at least one annular deflector (31, 32, 33) comprising a central opening (35), the external circumference of each annular deflector (31, 32, 33) being in contact with the peripheral wall (26).
  2. Accessory according to claim 1, characterised in that the cross-section of the lateral diffusion openings (27) arranged after the deflector (31) decreases from one opening to the other in the direction F1 of air flow.
  3. Accessory according to either of the preceding claims, characterised in that the deflection means (30) comprise at least two annular deflectors (31, 32, 33) separate from each other along axis Δ.
  4. Accessory according to claim 3, characterised in that the cross-section of the central opening (35) of the deflectors decreases from one annular deflector (31) to the next annular deflector (32) in the air flow direction from the inlet.
  5. Accessory according to claim 3 or 4, characterised in that the annular deflectors (31, 32, 33) divide the diffusion chamber (25) into compartments (41, 42, 43, 44) of substantially equal length, measured parallel to the axis Δ.
  6. Accessory according to one of claims 3 to 5, characterised in that the annular deflectors (31, 32, 33) divide the diffusion chamber (25) into compartments (41, 42, 43, 44) and in that, for a given compartment, the cross-section of the diffusion openings (27) decreases from one opening to the next in the air flow direction F1.
  7. Accessory according to one of claims 3 to 6, characterised in that two consecutive annular deflectors (31, 32, 33) are connected by at least one spacer (45).
  8. Accessory according to claim 7, characterised in that each spacer (45) is in contact with the inner side (37) of the peripheral wall (26) and has a shape complementary to the latter.
  9. Accessory according to one of the preceding claims, characterised in that the central opening (35) of each annular deflector (31, 32, 33) is bordered by an annular wall (36) which extends up to the inner side (37) of the peripheral wall (26).
  10. Accessory according to claim 9, characterised in that the downstream side (50) of the annular wall (36) facing towards the adaptation end (22) of each annular deflector (31, 32, 33) converges towards the central opening (35).
  11. Accessory according to claim 9 or 10, characterised in that, for each annular deflector (31, 32, 33), the downstream side (50) of the annular wall (36) facing towards the adaptation end (22) is concave.
  12. Accessory according to one of claims 3 to 7 and claim 11, characterised in that the radius of curvature of the downstream side (50) facing towards the adaptation end of the annular wall (36) of the annular deflectors (31, 32, 33) increases from one annular deflector to the next annular deflector in the air flow direction (F1) from the adaptation end (22).
  13. Accessory according to one of the preceding claims, characterised in that the outer surface of the peripheral wall (26) has a cylindrical shape of axis of revolution Δ.
  14. Accessory according to one of the preceding claims, characterised in that the diffusion openings (27) are distributed over the length and the outside of the peripheral wall (26).
  15. Accessory according to one of the preceding claims, characterised in that it comprises bristles and/or pins (28) extending radially towards the outside of the peripheral wall (26).
  16. Blowing hairdressing appliance comprising:
    - a hollow body (1) which is open at one outlet end (3) and which comprises an air inlet (2),
    - a motorised fan (4) arranged in the hollow body between the inlet and the outlet and adapted to suck air through the inlet (2) and discharge it through the outlet (3),
    characterised in that it comprises an accessory (20) according to one of the preceding claims whose adaptation end is connected to the outlet end of the hollow body.
  17. Hairdressing appliance according to the preceding claim, characterised in that the accessory (20) is intended to be movable in axial rotation on itself.
EP16178460.8A 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same Active EP3097816B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1356733A FR3008286B1 (en) 2013-07-09 2013-07-09 ACCESSORY FOR BLOWING HAIRDRESSING APPARATUS AND APPARATUS EQUIPPED WITH SUCH ACCESSORY
EP14175748.4A EP2823726B1 (en) 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14175748.4A Division EP2823726B1 (en) 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same
EP14175748.4A Division-Into EP2823726B1 (en) 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same

Publications (2)

Publication Number Publication Date
EP3097816A1 EP3097816A1 (en) 2016-11-30
EP3097816B1 true EP3097816B1 (en) 2019-03-06

Family

ID=49510279

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Application Number Title Priority Date Filing Date
EP14175748.4A Active EP2823726B1 (en) 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same
EP16178460.8A Active EP3097816B1 (en) 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14175748.4A Active EP2823726B1 (en) 2013-07-09 2014-07-04 Accessory for blowing hairstyling device and device provided with same

Country Status (4)

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EP (2) EP2823726B1 (en)
CN (1) CN204191840U (en)
ES (2) ES2603270T3 (en)
FR (1) FR3008286B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2526049B (en) 2014-03-20 2017-04-12 Dyson Technology Ltd Attachment for a hand held appliance
GB2526768B (en) 2014-03-20 2017-02-15 Dyson Technology Ltd Attachment for a hand held appliance
AU2015233174B2 (en) 2014-03-20 2017-12-07 Dyson Technology Limited Attachment for a hand held appliance
KR102101643B1 (en) * 2016-03-24 2020-04-17 다이슨 테크놀러지 리미티드 Attachments for portable instruments
GB2548816B (en) * 2016-03-24 2019-09-11 Dyson Technology Ltd Attachment for a handheld appliance
US10835007B2 (en) 2017-07-14 2020-11-17 Spectrum Brands, Inc. Hair dryer
US10660418B2 (en) 2017-07-14 2020-05-26 Spectrum Brands, Inc. Air-moving appliance including an attachment
EP3459386A1 (en) 2017-09-22 2019-03-27 BaByliss Faco sprl Rotary blower brush with improved ergonomics
EP3675684A1 (en) 2017-09-01 2020-07-08 BaByliss Faco sprl Rotary blower brush with improved ergonomics
BR112022004887A2 (en) * 2019-09-23 2022-06-07 Tangle Teezer Ltd Hairbrush portion and hair styling device

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JPS57180906A (en) * 1981-04-30 1982-11-08 Matsushita Electric Works Ltd Hair dryer
US6094837A (en) * 1999-05-03 2000-08-01 Joshe, Llc Multi-functional hand-held hair dryer
JP2013059580A (en) * 2011-09-15 2013-04-04 Izumi Products Co Curl dryer

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Also Published As

Publication number Publication date
FR3008286A1 (en) 2015-01-16
FR3008286B1 (en) 2017-02-17
EP2823726A1 (en) 2015-01-14
CN204191840U (en) 2015-03-11
ES2603270T3 (en) 2017-02-24
ES2718746T3 (en) 2019-07-04
EP3097816A1 (en) 2016-11-30
EP2823726B1 (en) 2016-08-17

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