EP3272247B1 - Depilator with precision head - Google Patents

Depilator with precision head Download PDF

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Publication number
EP3272247B1
EP3272247B1 EP17182222.4A EP17182222A EP3272247B1 EP 3272247 B1 EP3272247 B1 EP 3272247B1 EP 17182222 A EP17182222 A EP 17182222A EP 3272247 B1 EP3272247 B1 EP 3272247B1
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EP
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Prior art keywords
epilation
axis
cylinder
skin
window
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EP17182222.4A
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German (de)
French (fr)
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EP3272247A1 (en
Inventor
Laurent Henin
Franck Mandica
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SEB SA
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SEB SA
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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
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0023—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements
    • A45D26/0028—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements with rotating discs or blades

Definitions

  • the present invention relates to the technical field of mechanical hair removal devices also called epilators.
  • an electric hair removal apparatus comprises a housing that encloses an electric motor associated with transmission means.
  • This box is equipped with an epilation head, possibly removable, which comprises a hollow body which defines an epilation chamber open at a depilating window comprising two parallel straight longitudinal edges and two arcuate transverse edges.
  • the depilating head contains a hair removal roller flush with the epilation window and is driven by the transmission means in rotation on itself along an axis ⁇ parallel to the longitudinal edges of the window.
  • the depilatory roller comprises a series of pliers opening and closing as the rotation of the roller about the axis ⁇ .
  • the epilation head also comprises means for defining the angular sectors, around the axis ⁇ , for opening and closing the tongs of the epilation roller.
  • the clamps must be open when they arrive at the window and close while they are in the window to enter the hair to tear.
  • a frame or half frame can be placed around the rotating roller to improve a good hair removal angle.
  • This frame defines a plane and is connected to the roller so as to orient the pinch angle.
  • the passage on the skin of the frame allows to guide the clamps to have a pinch angle as effective as possible.
  • the disadvantage with the frame or the frame is that it is made of a plastic material that has the effect of increasing friction and irritation on the skin. In other words, the material used is not the most suitable for contact with an epidermis.
  • the object of the invention is to limit irritation on the skin during hair removal while keeping a known epilator structure so as not to increase the cost of production.
  • the material of the hair removal roller is polyformaldehyde (POM) loaded with polytetrafluoroethylene (PTFE).
  • POM polyformaldehyde
  • PTFE polytetrafluoroethylene
  • This material has the advantages of having a low coefficient of friction and being inexpensive.
  • the material of the hair removal roller comprises antibacterial agents.
  • the hair removal roller has an effect of limiting undesirable effects on the skin.
  • the epilation head comprises a flap that is rotatable relative to said axis ⁇ which defines at least one movable longitudinal edge of the epilation window and that comprises a support heel on the zone to be removed.
  • epilator extending in the extension of the movable longitudinal edge opposite the epilation window and defining a contact surface with the skin of the area to be depilated
  • the support heel comprises opposite the movable longitudinal edge a support roller on the epilating surface rotatable about an axis ⁇ parallel to the axis ⁇ and characterized in that the support roller is made of acrylonitrile butadiene styrene (ABS).
  • the backing roll is loaded with essential oils.
  • FIG. Figures 1 and 2 An electric and mechanical depilation apparatus according to the invention, as illustrated in FIG. Figures 1 and 2 , comprises a hollow housing, generally designated by the reference 1, which consists of two half-shells 2 and 3 monoblocks defining together on the one hand, by their outer surface a gripping area of the epilator and, d ' on the other hand, a box containing and holding various functional elements constituting the epilator.
  • the housing 1 encloses an electric motor 4 associated with means 5 for transmitting the rotational movement of the output gear 6 of the electric motor 4.
  • the transmission means 5 comprise a gear train of FIG. axes parallel to the axis of rotation of the motor.
  • the housing 1 is equipped with an epilation head 10 which comprises a hollow body 11 delimiting an epilation chamber 12 inside which is disposed an epilation roller 13.
  • the epilation roller 13 comprises at least a surface of contact with the skin (or bars) which is flush with a window 14 arranged in the hollow body 11.
  • the hair removal roller 13 is made of a material that limits friction with the skin of a user.
  • an artificial finger is used to retranscribe the sensations of the touch by tribological quantities.
  • the studied material then moves under the artificial finger through a linear motor.
  • the normal force and the tangential force generated on the artificial finger are measured by stress sensors.
  • the normal effort is constant throughout the duration of the test.
  • Each of the stress sensors (gauges or accelerometer) is connected to an acquisition card, which communicates the data to a computer.
  • the raw data is processed and formatted to visualize and process the effort signals.
  • the coefficient of friction between the material and the skin surface is defined as the ratio of the friction force and the normal force.
  • the material is polyformaldehyde (POM) loaded with polytetrafluoroethylene (PTFE) whose coefficient of friction is around 0.58.
  • POM polyformaldehyde
  • PTFE polytetrafluoroethylene
  • the epilating roller material 13 may include antibacterial agents so as to limit the proliferation of bacteria.
  • the epilation roller 13 is rotatable about itself about an axis ⁇ and is rotated via the drive or transmission means 5 by the electric motor 4.
  • the epilation roller 13 comprises at least one level of its periphery a series of clamps opening and closing as the rotation of the roller.
  • the epilation head 10 comprises means 15 for defining the angular sectors of opening 0 and closing F of the clamps.
  • the means 15 for defining the angular sectors 0 and F are, for example, formed by one or more cams associated with adapted cam paths.
  • the embodiment of the clamps as well as means 15 for defining the angular sectors 0 and F are well known to those skilled in the art and therefore do not require further descriptions here.
  • the epilation roller 13 is flush with the window 14 provided in the hollow body 11 of the epilation head 10.
  • the window 14 is delimited by, on the one hand , two longitudinal edges 20 and 21 parallel to each other and to the axis of rotation ⁇ of the hair removal roller 13 and, secondly, two transverse edges 22 and 23 which are parallel to each other and have an arcuate shape while being contained in planes perpendicular to the axis of rotation ⁇ .
  • One of the longitudinal edges is fixed by being formed either by a fixed edge of the depilating head 10 or by a fixed edge of the housing 1.
  • the other longitudinal edge here the upper edge 21 is movable being formed by a flap 25 movable in rotation around the ⁇ axis.
  • the movable flap comprises a bearing heel 26 which extends in the extension of the longitudinal edge 21 movable away from the window 14 depilation.
  • the heel 26 then defines a surface S of contact with the skin of the area to be depilated.
  • the contact surface S defined by the heel 26 is preferably substantially tangential to a cylinder of revolution C of axis ⁇ within which the epilation roller 13 is registered.
  • the hair removal apparatus thus constituted is used in the following manner.
  • the user After switching on the electric motor 4, the user places the epilation head 10 against the skin P of the zone to be depilated as shown in FIG. figure 3 .
  • the user moves the head applied against the skin P in the direction of the arrow F1 so that the heel 26 is upstream of the window 14 at which is flush with the hair removal roller 13.
  • the heel 26 and its surface S then ensure a slight tensioning of the skin P which helps to lift the bristles and promotes their gripping and tearing by the clips of the hair removal roller 13 which is in contact with the skin P at the window 14
  • the flap 25 and the heel 26, which it carries, are movable about the axis of rotation ⁇ , they can follow the course of the displacement of the hair removal apparatus.
  • the support heel 26 and the epilation roller 13 always remain in contact with the skin P of the zone to be depilated.
  • the support heel 26 comprises, depending on the shape illustrated embodiment, opposite the movable longitudinal edge 21, a support roller 30 movable in rotation about an axis ⁇ parallel to the axis ⁇ of rotation of the depilating roller 13.
  • the axis ⁇ is located at a distance D 'from the axis ⁇ greater than the radius R of the revolution cylinder C inside which the epilation roller 13 fits.
  • the support roll 30 may extend over the entire length of the hair removal roller or epilation window, as illustrated in figure 1 . Alternatively, it may extend over a portion of the length of the hair removal roller or epilation window, and in this case, it is advantageously placed in the middle of the length.
  • the material thereof is chosen so as to have the least amount of friction possible.
  • the coefficient of friction should be as low as possible.
  • this material is acrylonitrile butadiene styrene (ABS) which has a coefficient of friction which is located around 0.376.
  • the backing roll 30 is loaded with essential oils (not shown) so as to mitigate undesirable effects on the skin such as redness or the like.
  • the movable flap 25 is preferably secured to the means 15 definition of the angular sectors of opening and closing of the clamps.
  • the means of definition are rotatable about the axis ⁇ and follow the variations of the inclination of the housing or the epilating head relative to the skin of the area to be epilated.
  • the epilation head 10 is removably fitted on the housing 1 and can be separated by pressing a button 39 accessible at one of the sides
  • the epilation head could be integrated into the housing or fixed on the housing 1 permanently without being removable.
  • the orientation of the depilating head 10 relative to the housing 1 is fixed.
  • such an embodiment is not strictly necessary for the production of an epilation device according to the invention.

Description

La présente invention concerne le domaine technique des appareils de soins d'épilation mécanique encore appelés épilateurs.The present invention relates to the technical field of mechanical hair removal devices also called epilators.

Des appareils d'épilation sont, par exemple décrits dans le document FR 2 968 513 . De manière générale, un appareil d'épilation électrique comprend un boitier qui renferme un moteur électrique associé à des moyens de transmission. Ce boitier est équipé d'une tête d'épilation, éventuellement amovible, qui comprend un corps creux qui délimite une chambre d'épilation ouverte au niveau d'une fenêtre d'épilation comprenant deux bords longitudinaux droits parallèles et deux bords transversaux arqués. La tête d'épilation renferme un rouleau d'épilation affleurant au niveau de la fenêtre d'épilation et étant entrainé, par les moyens de transmission, en rotation sur lui-même selon un axe Δ parallèle aux bords longitudinaux de la fenêtre. Le rouleau d'épilation comprend une série de pinces s'ouvrant et se fermant au fur et à mesure de la rotation du rouleau autour de l'axe Δ.Hair removal devices are, for example described in the document FR 2 968 513 . In general, an electric hair removal apparatus comprises a housing that encloses an electric motor associated with transmission means. This box is equipped with an epilation head, possibly removable, which comprises a hollow body which defines an epilation chamber open at a depilating window comprising two parallel straight longitudinal edges and two arcuate transverse edges. The depilating head contains a hair removal roller flush with the epilation window and is driven by the transmission means in rotation on itself along an axis Δ parallel to the longitudinal edges of the window. The depilatory roller comprises a series of pliers opening and closing as the rotation of the roller about the axis Δ.

Afin de contrôler les mouvements d'ouverture et de fermeture des pinces, la tête d'épilation comprend également des moyens de définition des secteurs angulaires, autour de l'axe Δ, d'ouverture et de fermeture des pinces du rouleau d'épilation. En effet, pour assurer une bonne épilation, les pinces doivent être ouvertes lorsqu'elles arrivent au niveau de la fenêtre et se fermer alors qu'elles se trouvent dans la fenêtre pour y saisir les poils à arracher.In order to control the opening and closing movements of the tongs, the epilation head also comprises means for defining the angular sectors, around the axis Δ, for opening and closing the tongs of the epilation roller. Indeed, to ensure good hair removal, the clamps must be open when they arrive at the window and close while they are in the window to enter the hair to tear.

En outre dans ce document, un cadre ou demi-cadre peut être placé autour du rouleau rotatif afin d'améliorer un bon angle d'épilation. Ce cadre définit un plan et est relié au rouleau de sorte à orienter l'angle de pincement. Ainsi le passage sur la peau du cadre permet d'orienter les pinces pour avoir un angle de pincement le plus efficace possible. L'inconvénient rencontré avec le cadre ou le demi-cadre est qu'il est fait dans un matériau plastique qui a pour effet d'augmenter les frottements et les irritations sur la peau. En d'autres termes le matériau utilisé n'est pas le plus approprié pour un contact avec un épiderme.In addition, in this document, a frame or half frame can be placed around the rotating roller to improve a good hair removal angle. This frame defines a plane and is connected to the roller so as to orient the pinch angle. Thus the passage on the skin of the frame allows to guide the clamps to have a pinch angle as effective as possible. The disadvantage with the frame or the frame is that it is made of a plastic material that has the effect of increasing friction and irritation on the skin. In other words, the material used is not the most suitable for contact with an epidermis.

Un autre inconvénient provient également du matériau dans lequel est réalisé le rouleau d'épilation, celui-ci étant en général fait dans un matériau du type plastique. Les frottements avec un tel type de matériau sont tels que cela provoque des irritations sur la peau lors de l'épilation.Another disadvantage also comes from the material in which the depilatory roller is made, the latter being generally made of a material of the plastic type. Friction with such a type of material is such that it causes irritation on the skin during hair removal.

L'objet de l'invention est de limiter les irritations sur la peau lors de l'épilation tout en gardant une structure d'épilateur connue de manière à ne pas augmenter le cout de production.The object of the invention is to limit irritation on the skin during hair removal while keeping a known epilator structure so as not to increase the cost of production.

Afin d'atteindre ces objectifs l'invention concerne un appareil d'épilation électrique comprenant :

  • un boitier qui renferme un moteur électrique associé à des moyens de transmission,
  • une tête d'épilation qui est liée au boitier et qui comprend :
  • un corps creux qui délimite une chambre d'épilation ouverte au niveau d'une fenêtre d'épilation comprenant deux bords longitudinaux droits parallèles et deux bords transversaux arqués,
  • un rouleau d'épilation qui :
  • est disposé à l'intérieur de la chambre d'épilation de manière à affleurer au niveau de la fenêtre d'épilation,
  • est entrainé en rotation d'axe Δ par les moyens de transmission, l'axe Δ étant parallèle aux bords longitudinaux,
  • comprend une série de pinces s'ouvrant et se fermant au fur et à mesure de la rotation du rouleau autour de l'axe Δ,
  • des moyens de définition des secteurs angulaires, autour de l'axe Δ, d'ouverture et de fermeture des pinces du rouleau d'épilation,
caractérisé en ce que le rouleau d'épilation comprend au moins une surface de contact avec la peau réalisée dans un matériau dont le coefficient de frottement sur une surface cutanée est compris entre 0.37 et 0.72 et est préférentiellement de 0.58, le coefficient de frottement entre le matériau et la surface cutanée étant défini par le rapport de la force de frottement et la force normale.In order to achieve these objectives the invention relates to an electric hair removal apparatus comprising:
  • a box that encloses an electric motor associated with transmission means,
  • an epilation head which is linked to the case and which comprises:
  • a hollow body which delimits an epilation chamber open at the level of an epilation window comprising two parallel straight longitudinal edges and two arcuate transverse edges,
  • a hair removal roller that:
  • is disposed inside the depilatory chamber so as to be flush with the epilation window,
  • is driven in rotation axis Δ by the transmission means, the axis Δ being parallel to the longitudinal edges,
  • comprises a series of clamps opening and closing as the roll is rotated about the axis Δ,
  • means for defining the angular sectors, around the axis Δ, opening and closing of the hair removal roller clamps,
characterized in that the depilating roller comprises at least one skin-contacting surface made of a material whose coefficient of friction on a skin surface is between 0.37 and 0.72 and is preferably 0.58, the coefficient of friction between the material and the cutaneous surface being defined by the ratio of the friction force and the normal force.

D'après l'invention, le matériau du rouleau d'épilation est du polyformaldéhyde (POM) chargé en polytétrafluoroéthylène (PTFE).According to the invention, the material of the hair removal roller is polyformaldehyde (POM) loaded with polytetrafluoroethylene (PTFE).

Ce matériau présente les avantages d'avoir un faible coefficient de frottement et d'être peu couteux.This material has the advantages of having a low coefficient of friction and being inexpensive.

Selon une caractéristique de l'invention, le matériau du rouleau d'épilation comprend des agents antibactériens. De cette manière le rouleau d'épilation a un effet de limitation des effets indésirables sur la peau.According to one characteristic of the invention, the material of the hair removal roller comprises antibacterial agents. In this way the hair removal roller has an effect of limiting undesirable effects on the skin.

Selon une caractéristique de l'invention, la tête d'épilation comprend un volet mobile en rotation par rapport audit axe Δ qui définit au moins un bord longitudinal mobile de la fenêtre d'épilation et qui comprend un talon d'appui sur la zone à épiler s'étendant dans le prolongement du bord longitudinal mobile à l'opposé de la fenêtre d'épilation et définissant une surface de contact avec la peau de la zone à épiler, le talon d'appui comprend à l'opposé du bord longitudinal mobile un rouleau d'appui sur la surface à épiler mobile en rotation autour d'un axe Ω parallèle à l'axe Δ et caractérisé en ce que le rouleau d'appui est réalisé dans de l'acrylonitrile butadiène styrène (ABS).According to one characteristic of the invention, the epilation head comprises a flap that is rotatable relative to said axis Δ which defines at least one movable longitudinal edge of the epilation window and that comprises a support heel on the zone to be removed. epilator extending in the extension of the movable longitudinal edge opposite the epilation window and defining a contact surface with the skin of the area to be depilated, the support heel comprises opposite the movable longitudinal edge a support roller on the epilating surface rotatable about an axis Ω parallel to the axis Δ and characterized in that the support roller is made of acrylonitrile butadiene styrene (ABS).

Selon une caractéristique de l'invention, le rouleau d'appui est chargé en huiles essentielles.According to one characteristic of the invention, the backing roll is loaded with essential oils.

Par ailleurs, diverses autres caractéristiques de l'invention ressortent de la description annexée effectuée en référence aux dessins qui illustrent des formes non limitatives de réalisation d'un appareil d'épilation électrique conforme à l'invention.

  • La figure 1 est une perspective schématique d'un appareil d'épilation électrique selon l'invention.
  • Les figures 2 et 3 sont une élévation en vue de côté partiellement arrachée de l'appareil illustré à la figure 1, la figure 3 représentant l'appareil en fonctionnement contre la peau.
Furthermore, various other features of the invention appear from the attached description with reference to the drawings which illustrate non-limiting embodiments of an electric hair removal apparatus according to the invention.
  • The figure 1 is a schematic perspective of an electric hair removal apparatus according to the invention.
  • The figures 2 and 3 are a side view elevation partially torn off from the device shown in the figure 1 , the figure 3 representing the device in operation against the skin.

Un appareil d'épilation électrique et mécanique selon l'invention, tel qu'illustré aux figures 1 et 2, comprend un boîtier creux, désigné dans son ensemble par la référence 1, qui est constitué de deux demi-coques 2 et 3 monoblocs définissant ensemble d'une part, par leur surface extérieure une zone de préhension de l'épilateur et, d'autre part, un boîtier de confinement et de maintien de différents éléments fonctionnels constitutifs de l'épilateur. Ainsi, le boîtier 1 renferme un moteur électrique 4 associé à des moyens 5 de transmission du mouvement de rotation du pignon de sortie 6 du moteur électrique 4. Selon l'exemple illustré, les moyens 5 de transmission comprennent un train d'engrenages d'axes parallèles à l'axe de rotation du moteur.An electric and mechanical depilation apparatus according to the invention, as illustrated in FIG. Figures 1 and 2 , comprises a hollow housing, generally designated by the reference 1, which consists of two half-shells 2 and 3 monoblocks defining together on the one hand, by their outer surface a gripping area of the epilator and, d ' on the other hand, a box containing and holding various functional elements constituting the epilator. Thus, the housing 1 encloses an electric motor 4 associated with means 5 for transmitting the rotational movement of the output gear 6 of the electric motor 4. According to the illustrated example, the transmission means 5 comprise a gear train of FIG. axes parallel to the axis of rotation of the motor.

Le boîtier 1 est équipé d'une tête d'épilation 10 qui comprend un corps creux 11 délimitant une chambre d'épilation 12 à l'intérieur de laquelle est disposé un rouleau d'épilation 13. Le rouleau d'épilation 13 comprend au moins une surface de contact avec la peau (ou barrettes) qui affleure au niveau d'une fenêtre 14 aménagée dans le corps creux 11.The housing 1 is equipped with an epilation head 10 which comprises a hollow body 11 delimiting an epilation chamber 12 inside which is disposed an epilation roller 13. The epilation roller 13 comprises at least a surface of contact with the skin (or bars) which is flush with a window 14 arranged in the hollow body 11.

Le rouleau d'épilation 13 est fait dans un matériau qui limite les frottements avec la peau d'un utilisateur. Afin de déterminer le coefficient de frottement du matériau sur la peau, un doigt artificiel est utilisé pour retranscrire les sensations du toucher par des grandeurs tribologiques. Le matériau étudié se déplace alors sous le doigt artificiel par le biais d'un moteur linéaire. L'effort normal et l'effort tangentiel générés sur le doigt artificiel sont mesurés par des capteurs de contraintes. L'effort normal est constant durant toute la durée de l'essai.The hair removal roller 13 is made of a material that limits friction with the skin of a user. In order to determine the coefficient of friction of the material on the skin, an artificial finger is used to retranscribe the sensations of the touch by tribological quantities. The studied material then moves under the artificial finger through a linear motor. The normal force and the tangential force generated on the artificial finger are measured by stress sensors. The normal effort is constant throughout the duration of the test.

Chacun des capteurs de contraintes (jauges ou accéléromètre) est relié à une carte d'acquisition, qui communique les données à un ordinateur. Les données brutes sont traitées et mises en forme pour visualiser et traiter les signaux des efforts. Selon ce protocole d'essai, on définit le coefficient de frottement entre le matériau et la surface cutanée comme le rapport de la force de frottement et la force normale.Each of the stress sensors (gauges or accelerometer) is connected to an acquisition card, which communicates the data to a computer. The raw data is processed and formatted to visualize and process the effort signals. According to this test protocol, the coefficient of friction between the material and the skin surface is defined as the ratio of the friction force and the normal force.

Dans ce cadre là on a un matériau dont le coefficient de frottement tel que défini précédemment est compris entre 0.37 et 0.72. Dans le cadre de l'invention le matériau est du polyformaldéhyde (POM) chargé en polytétrafluoroéthylène (PTFE) dont le coefficient de frottement est situé autour de 0.58.In this context there is a material whose coefficient of friction as defined above is between 0.37 and 0.72. In the context of the invention the material is polyformaldehyde (POM) loaded with polytetrafluoroethylene (PTFE) whose coefficient of friction is around 0.58.

Le matériau du rouleau d'épilation 13 peut comprendre des agents antibactériens de manière à limiter la prolifération des bactéries.The epilating roller material 13 may include antibacterial agents so as to limit the proliferation of bacteria.

Le rouleau d'épilation 13 est mobile en rotation sur lui-même autour d'un axe Δ et se trouve entraîné en rotation via les moyens 5 d'entraînement ou de transmission par le moteur électrique 4. Le rouleau d'épilation 13 comprend au niveau de sa périphérie une série de pinces s'ouvrant et se fermant au fur et à mesure de la rotation du rouleau. Afin, que les pinces soient ouvertes au moment où elles commencent à affleurer au niveau de la fenêtre 14 et se ferment alors qu'elles affleurent encore et bien avant de sortir de la fenêtre 14 d'épilation, la tête d'épilation 10 comprend des moyens 15 de définition des secteurs angulaires d'ouverture 0 et de fermeture F des pinces. Les moyens 15 de définition des secteurs angulaires 0 et F sont, par exemple, formés par une ou plusieurs cames associées à des chemins de cames adaptés. Le mode de réalisation des pinces ainsi que des moyens 15 de définition des secteurs angulaires 0 et F sont bien connus de l'homme du métier et ne nécessitent donc pas ici de plus amples descriptions.The epilation roller 13 is rotatable about itself about an axis Δ and is rotated via the drive or transmission means 5 by the electric motor 4. The epilation roller 13 comprises at least one level of its periphery a series of clamps opening and closing as the rotation of the roller. In order for the tongs to be open when they begin to emerge at the level of the window 14 and close while they are still flush and well before leaving the depilatory window 14, the epilation head 10 comprises means 15 for defining the angular sectors of opening 0 and closing F of the clamps. The means 15 for defining the angular sectors 0 and F are, for example, formed by one or more cams associated with adapted cam paths. The embodiment of the clamps as well as means 15 for defining the angular sectors 0 and F are well known to those skilled in the art and therefore do not require further descriptions here.

Comme cela a été dit précédemment, le rouleau d'épilation 13 affleure au niveau de la fenêtre 14 aménagée dans le corps creux 11 de la tête d'épilation 10. Selon l'exemple illustré la fenêtre 14 est délimitée par, d'une part, deux bords longitudinaux 20 et 21 parallèles entre eux et à l'axe de rotation Δ du rouleau d'épilation 13 et, d'autre part, deux bords transversaux 22 et 23 qui sont parallèles entre eux et présentent une forme arquée en étant contenus dans des plans perpendiculaires à l'axe de rotation Δ.As has been said above, the epilation roller 13 is flush with the window 14 provided in the hollow body 11 of the epilation head 10. According to the illustrated example, the window 14 is delimited by, on the one hand , two longitudinal edges 20 and 21 parallel to each other and to the axis of rotation Δ of the hair removal roller 13 and, secondly, two transverse edges 22 and 23 which are parallel to each other and have an arcuate shape while being contained in planes perpendicular to the axis of rotation Δ.

L'un des bords longitudinaux, ici le bord inférieur 20, est fixe en étant formé soit par un bord fixe de la tête d'épilation 10 soit par un bord fixe du boîtier 1. Selon l'invention, l'autre bord longitudinal, ici le bord supérieur 21, est mobile en étant formé par un volet 25 mobile en rotation autour de l'axe Δ. Le volet mobile comprend un talon 26 d'appui qui s'étend dans le prolongement du bord longitudinal 21 mobile à l'opposé de la fenêtre 14 d'épilation. Le talon 26 définit alors une surface S de contact avec la peau de la zone à épiler. La surface de contact S définie par le talon 26 est, de préférence, sensiblement tangente à un cylindre de révolution C d'axe Δ à l'intérieur duquel s'inscrit le rouleau d'épilation 13.One of the longitudinal edges, here the lower edge 20, is fixed by being formed either by a fixed edge of the depilating head 10 or by a fixed edge of the housing 1. According to the invention, the other longitudinal edge, here the upper edge 21, is movable being formed by a flap 25 movable in rotation around the Δ axis. The movable flap comprises a bearing heel 26 which extends in the extension of the longitudinal edge 21 movable away from the window 14 depilation. The heel 26 then defines a surface S of contact with the skin of the area to be depilated. The contact surface S defined by the heel 26 is preferably substantially tangential to a cylinder of revolution C of axis Δ within which the epilation roller 13 is registered.

L'appareil d'épilation ainsi constitué est mis en oeuvre de la manière suivante.The hair removal apparatus thus constituted is used in the following manner.

Après la mise en marche du moteur électrique 4, l'utilisateur vient placer la tête d'épilation 10 contre la peau P de la zone à épiler comme le montre la figure 3. L'utilisateur déplace la tête appliquée contre la peau P dans le sens de la flèche F1 de sorte que le talon 26 se trouve en amont de la fenêtre 14 au niveau de laquelle affleure le rouleau d'épilation 13. Le talon 26 et sa surface S assurent alors une légère mise en tension de la peau P ce qui contribue à relever les poils et favorise leur préhension et leur arrachage par les pinces du rouleau d'épilation 13 qui se trouve en contact avec la peau P au niveau de la fenêtre 14. Dans la mesure où le volet 25 et le talon 26, qu'il porte, sont mobiles autour de l'axe de rotation Δ, ils peuvent suivre les cours du déplacement de l'appareil d'épilation. Ainsi, le talon 26 d'appui et le rouleau d'épilation 13 restent toujours au contact de la peau P de la zone à épiler. Afin d'éviter que la friction du bord du talon 26 d'appui situé à l'opposé du bord longitudinal 21 mobile ne soit trop importante et puisse induire une gêne pour l'utilisateur, le talon 26 d'appui comprend, selon la forme de réalisation illustrée, à l'opposé du bord longitudinal 21 mobile, un rouleau d'appui 30 mobile en rotation autour d'un axe Ω parallèle à l'axe Δ de rotation du rouleau d'épilation 13. De manière préférée, l'axe Ω est situé à une distance D' de l'axe Δ supérieure au rayon R du cylindre de révolution C à l'intérieur duquel s'inscrit le rouleau d'épilation 13. Cette caractéristique permet de garantir un bon effet de levier de manière à assurer au volet 25 un bon suivi de la surface de la peau P de la zone à épiler. Le rouleau d'appui 30 peut s'étendre sur toute la longueur du rouleau d'épilation ou de la fenêtre d'épilation, comme illustré en figure 1. Alternativement il peut s'étendre sur une partie de la longueur du rouleau d'épilation ou de la fenêtre d'épilation, et dans ce cas, il est avantageusement placé au milieu de la longueur.After switching on the electric motor 4, the user places the epilation head 10 against the skin P of the zone to be depilated as shown in FIG. figure 3 . The user moves the head applied against the skin P in the direction of the arrow F1 so that the heel 26 is upstream of the window 14 at which is flush with the hair removal roller 13. The heel 26 and its surface S then ensure a slight tensioning of the skin P which helps to lift the bristles and promotes their gripping and tearing by the clips of the hair removal roller 13 which is in contact with the skin P at the window 14 Insofar as the flap 25 and the heel 26, which it carries, are movable about the axis of rotation Δ, they can follow the course of the displacement of the hair removal apparatus. Thus, the support heel 26 and the epilation roller 13 always remain in contact with the skin P of the zone to be depilated. In order to prevent the friction of the edge of the support heel 26 located opposite the movable longitudinal edge 21 from being too great and may cause discomfort for the user, the support heel 26 comprises, depending on the shape illustrated embodiment, opposite the movable longitudinal edge 21, a support roller 30 movable in rotation about an axis Ω parallel to the axis Δ of rotation of the depilating roller 13. Preferably, the axis Ω is located at a distance D 'from the axis Δ greater than the radius R of the revolution cylinder C inside which the epilation roller 13 fits. This characteristic makes it possible to guarantee a good leverage effect in a to ensure the flap 25 a good monitoring of the surface of the skin P of the area to be depilated. The support roll 30 may extend over the entire length of the hair removal roller or epilation window, as illustrated in figure 1 . Alternatively, it may extend over a portion of the length of the hair removal roller or epilation window, and in this case, it is advantageously placed in the middle of the length.

Comme le rouleau d'appui 30 est en contact avec la peau d'un utilisateur, le matériau de celui-ci est choisi de manière à avoir le moins de frottements possible. En d'autres termes le coefficient de frottement doit être le plus faible possible. Dans le cadre de l'invention ce matériau est de l'acrylonitrile butadiène styrène (ABS) qui présente un coefficient de frottement qui est situé aux alentours de 0.376.Since the backing roll 30 is in contact with the skin of a user, the material thereof is chosen so as to have the least amount of friction possible. In other words the coefficient of friction should be as low as possible. In the context of the invention this material is acrylonitrile butadiene styrene (ABS) which has a coefficient of friction which is located around 0.376.

On peut également prévoir que le rouleau d'appui 30 soit chargé en huiles essentielles (non représenté) de manière à atténuer les effets indésirables sur la peau comme les rougeurs ou autres.It can also be provided that the backing roll 30 is loaded with essential oils (not shown) so as to mitigate undesirable effects on the skin such as redness or the like.

Afin de garantir un arrachage aussi performant que possible des poils de la zone à épiler quelle que soit l'inclinaison du boîtier 1 ou de la tête d'épilation 10 par rapport à la peau P, le volet 25 mobile est de préférence solidaire des moyens 15 de définition des secteurs angulaires d'ouverture et de fermeture des pinces. Ainsi, les moyens 15 de définition se trouvent mobiles en rotation autour de l'axe Δ et suivent les variations de l'inclinaison du boîtier ou de la tête d'épilation par rapport à la peau de la zone à épiler.In order to guarantee that the bristles of the zone to be epilated can be removed as efficiently as possible regardless of the inclination of the casing 1 or of the depilating head 10 with respect to the skin P, the movable flap 25 is preferably secured to the means 15 definition of the angular sectors of opening and closing of the clamps. Thus, the means of definition are rotatable about the axis Δ and follow the variations of the inclination of the housing or the epilating head relative to the skin of the area to be epilated.

Il doit être remarqué que, selon l'exemple illustré et décrit précédemment, la tête d'épilation 10 est adaptée de façon amovible sur le boîtier 1 et peut en être séparée par une pression sur un bouton 39 accessible au niveau d'un des côtés du boîtier 1. Bien entendu, selon l'invention la tête d'épilation pourrait être intégrée au boîtier ou fixée sur le boîtier 1 de manière permanente sans être démontable.It should be noted that, according to the example illustrated and described above, the epilation head 10 is removably fitted on the housing 1 and can be separated by pressing a button 39 accessible at one of the sides Of course, according to the invention the epilation head could be integrated into the housing or fixed on the housing 1 permanently without being removable.

Selon l'exemple illustré décrit précédemment l'orientation de la tête d'épilation 10 par rapport au boîtier 1 est fixe. Cependant, un tel mode de réalisation n'est pas strictement nécessaire à la réalisation d'un appareil d'épilation selon l'invention.According to the example illustrated above, the orientation of the depilating head 10 relative to the housing 1 is fixed. However, such an embodiment is not strictly necessary for the production of an epilation device according to the invention.

Bien entendu, diverses autres modifications peuvent être apportées à l'invention dans le cadre des revendications annexées.Of course, various other modifications may be made to the invention within the scope of the appended claims.

Claims (4)

  1. Electric epilation device comprising:
    - a housing (1) that contains an electric motor (4) associated with transmission means (5),
    - an epilation head (10) connected to the housing (1) and that includes:
    - a hollow body (11) delimiting an epilation chamber (12) that opens at the level of an epilation window (14) comprising two straight and parallel longitudinal edges (20, 21) and two curved transversal edges (22, 23),
    - an epilation cylinder (13) that:
    - is arranged inside the epilation chamber (12) in order to flush with the epilation window (14),
    - is rotationally driven about an axis Δ by the transmission means (5), the axis Δ being parallel to the longitudinal edges (20, 21),
    - comprises a series of clips that open and close as the epilation cylinder (13) rotates about the axis Δ,
    - the means (15) to define angular sectors, around the axis Δ, for the opening and closing of the clips of the epilation cylinder (13),
    characterised in that the epilation cylinder (13) comprises at least a contact surface with the skin made of a material featuring a friction coefficient on skin ranging from 0.37 to 0.72, and preferably of 0.58, the friction coefficient between the material and the skin being defined by the ratio of friction force to normal force, the material of the epilation cylinder (13) being polyformaldehyde (POM) charged with polytetrafluoroethylene (PTFE).
  2. Electric epilation device according to claim 1, characterised in that the material of the epilation cylinder (13) comprises antibacterial agents.
  3. Electric epilation device according to any one of the claims 1 to 2, characterised in that the epilation head (10) comprises a shutter (25) rotationally mobile with respect to said axis Δ that defines at least one mobile longitudinal edge (21) of the epilation window (14), and that comprises a support heel (26) on the surface to undergo epilation extending beyond the mobile longitudinal edge (21) on the opposite side of the epilation window (14) and defining a contact surface (S) with the surface of skin that is to be epilated, the support heel (26) comprises on the opposite side of the mobile longitudinal edge a support cylinder (30) on the epilation surface rotationally mobile about an axis Ω parallel to the axis Δ and characterised in that the support cylinder (30) is made of acrylonitrile butadiene styrene (ABS).
  4. Electric epilation device according to claim 3, characterised in that the support cylinder (30) contains essential oils.
EP17182222.4A 2016-07-21 2017-07-19 Depilator with precision head Active EP3272247B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1656970 2016-07-21

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EP3272247A1 EP3272247A1 (en) 2018-01-24
EP3272247B1 true EP3272247B1 (en) 2018-09-26

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Application Number Title Priority Date Filing Date
EP17182222.4A Active EP3272247B1 (en) 2016-07-21 2017-07-19 Depilator with precision head

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EP (1) EP3272247B1 (en)
ES (1) ES2697825T3 (en)
PT (1) PT3272247T (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117755A1 (en) * 2005-05-02 2006-11-09 Koninklijke Philips Electronics N.V. Disc for an epilating apparatus disc assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606948A1 (en) * 1996-02-23 1997-08-28 Hoechst Ag Plastic molding compounds with less wear
FR2968513B1 (en) * 2010-12-08 2013-01-11 Seb Sa EPILATOR WITH PRECISION HEAD

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117755A1 (en) * 2005-05-02 2006-11-09 Koninklijke Philips Electronics N.V. Disc for an epilating apparatus disc assembly

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ES2697825T3 (en) 2019-01-29
PT3272247T (en) 2018-11-29
EP3272247A1 (en) 2018-01-24

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