EP0795283A1 - Anti pain mechanical hair removal device and method - Google Patents

Anti pain mechanical hair removal device and method Download PDF

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Publication number
EP0795283A1
EP0795283A1 EP97400476A EP97400476A EP0795283A1 EP 0795283 A1 EP0795283 A1 EP 0795283A1 EP 97400476 A EP97400476 A EP 97400476A EP 97400476 A EP97400476 A EP 97400476A EP 0795283 A1 EP0795283 A1 EP 0795283A1
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EP
European Patent Office
Prior art keywords
roller
hair removal
removal device
vibrating parts
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97400476A
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German (de)
French (fr)
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EP0795283B1 (en
Inventor
Daniel Bontoux
Monique Paget
Jean-Pierre Debourg
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SEB SA
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SEB SA
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Publication date
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Publication of EP0795283A1 publication Critical patent/EP0795283A1/en
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Publication of EP0795283B1 publication Critical patent/EP0795283B1/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
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0061—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with means for reducing pain during hair removal
    • 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
    • A45D26/0066—Tweezers
    • A45D26/0071—Tweezers the hair being extracted automatically, i.e. without manual traction by the user
    • A45D26/0076—Tweezers the hair being extracted automatically, i.e. without manual traction by the user power-driven
    • 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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/20—Additional enhancing means
    • A45D2200/207—Vibration, e.g. ultrasound

Definitions

  • the present invention relates to a mechanical hair removal device and a corresponding hair removal method.
  • a hair removal device provided with an electrical device which generates currents in the skin, in order to reduce the pains felt by a user.
  • an electrical device which generates currents in the skin, in order to reduce the pains felt by a user.
  • such a device may be subject to contraindications, such as wearing a pacemaker, and its effectiveness is limited.
  • European patent EP-348,862 describes an auxiliary device for cooling the skin before depilation, intended to reduce pain. This device, however, requires significant cooling power to be effective, and the economy of this system leads to using the evaporation of water or a lotion to cool, which is somewhat restrictive.
  • Document EP-A-0,493,849 discloses a method of hair removal according to which hairs are grabbed and pulled out of the skin by a hair removal member. Just before depilation, a vibrating organ comes into contact with the skin to be depilated, exerting forces of varying intensity on the skin so that the nervous function of the skin is affected.
  • the present invention aims to a hair removal device reducing, or even removing the pain during hair removal without having the disadvantages mentioned above.
  • Another object of the invention is also such a hair removal device, having a compact shape.
  • the invention also relates to such a hair removal device which is simple to produce and does not require any other source of energy than that used to drive a hair removal roller.
  • the present invention also aims at a hair removal method making it possible to reduce pain.
  • the epilation device comprises a roller having an axis, this roller being carried by the housing and intended to be applied against the surface to be epilated.
  • the depilation means are arranged on the roller and the means the hair removal means drive the roller in rotation.
  • the nerve endings concerned by the pulling of the hairs are excited by a painful solicitation, but permanently receive the continuous vibratory solicitation generating nerve impulses of high density that are not painful.
  • the nerve impulse is saturated by the vibrations and we no longer feel the pain.
  • the means for driving the vibrating parts are coupled to the means for driving the hair removal means and activated in operation by these means for driving the hair removal means.
  • This configuration not only saves the energy used, but also makes a compact form of the hair removal device possible.
  • the vibrating parts are intended to undergo a translational movement substantially perpendicular to the surface to be epilated.
  • the hair removal device comprising a roller on which the hair removal means are arranged, the first shaft and the roller are advantageously driven in rotation by the same motor by means of gears.
  • the vibrating parts are intended to undergo a rotational movement.
  • the hair removal device comprising a roller carried by the housing and on which the hair removal means are arranged, the vibrating parts are then placed on the roller.
  • the roller is provided with at least one notch intended to receive the vibrating parts, these parts being able to slide radically in the notches and the depilation device comprises means retention of vibrating parts, allowing these parts to partially exit from the notches while remaining connected to the roller. In this way, during a rotation of the roller, the vibrating parts are centrifuged outwards.
  • the roller having an axis
  • the parts each include a hinge edge and a free edge.
  • the articulation edge is connected to the roller, and has an articulation with an axis substantially parallel to the axis of the roller, and the drive means of the roller are such that the articulation edges are in front of rotational movements. In this way, during a rotation of the roller, the free edges of the vibrating parts are centrifuged outwards.
  • the means for driving the vibrating parts produce a stress during operation. vibration on the surface to be epilated at a vibration frequency approximately equal to 100 Hz.
  • Pain reduction is most effective with vibratory stress at this frequency of 100 Hz. It is also desirable not to exceed a maximum of 300 Hz, the nervous response no longer being proportional to the frequency of stress. -of the.
  • the invention also relates to a process for mechanical depilation of a surface to be depilated.
  • This process is characterized in that a mechanical vibratory stress is applied to the surface during hair removal, so as to reduce pain due to hair removal.
  • this device comprises a housing 1 of elongated shape which can be held by hand.
  • the housing 1 carries a roller 3 with an axis 18, this roller 3 being provided with pliers, and a mechanism for opening and closing these pliers.
  • the roller 3 projects from the housing through an opening 19, and is intended to be applied against a surface to be depilated at the level of this opening 19.
  • the hair removal device also comprises a motor 2 contained in the housing 1, capable of actuating the roller 3 in rotation about its axis 18, as well as its mechanism for opening and closing the clamps.
  • the transmission of movements from motor 2 to roller 3 is done by a gear train made up of wheels such as 4, 5, 6, 7, reducing the speed.
  • the hair removal device also comprises a vibrating part 10.
  • a vibrating part 10 This has a substantially cylindrical shape admitting a straight U-shaped section and a generator parallel to the axis 18 of the roller 3. It comprises a base 41 limited by two lateral branches 42 and 43 at right angles, these two branches 42 and 43 having ends 11.
  • the vibrating part 10 partially surrounds the roller 3, the ends 11 being oriented towards the opening 19 and the branches 42 and 43 being approximately centered longitudinally on the roller 3.
  • the ends 11 are provided to extend beyond the opening 19, so as to materialize keys allowing the support of the vibrating part 10 on the skin to be depilated, near the depilation roller 3.
  • the vibrating part 10 is intended to undergo substantially translational movements, perpendicular to the surface to be depilated, that is to say approximately parallel to the branches 42 and 43, by means of driving this vibrating part 10.
  • the vibrating part 10 further comprises articulation tabs 44 and 45 starting from the base 41 in a direction opposite to the branches 42 and 43, the tabs 44 and 45 being substantially rectangular plates oriented perpendicularly to the tabs 42 and 43.
  • the drive means of the vibrating part 10 include in particular a wheel 8 meshed with the wheel 6, as well as a first shaft 9 secured to the wheel 8 and arranged along its axis.
  • the means for driving the vibrating part 10 also comprise a second shaft 12 supported by the vibrating part 10. This shaft 12 is substantially aligned on average with the shaft 9.
  • a flexible mechanical seal 14 connects the shafts 9 and 12, ensuring their connection in rotation while allowing misalignments.
  • the axis 18 and the shaft 12 define a direction 46 of vibration, this direction 46 intersecting the shaft 12 and the axis 18 in a cross section of the housing 1 ( Figure 2).
  • the second shaft 12 is integral with an eccentric flyweight 13.
  • the counterweight 13 has a section admitting a substantially half-disc shape, having a center approximately at the level of the second shaft 12.
  • the second shaft 12 passes through the articulation tabs 44 and 45 of the vibrating part 10, which carries it, leaving it free to rotate.
  • the counterweight 13 is placed between the articulation tabs 44 and 45, and approximately centered above the base 41.
  • the vibrating part 6 is suspended in the housing 1 by flexible elastic connections.
  • the springs 15 and 17 laterally connect the connection elbows between the base 41 and the branches 42 and 43 to the housing 1, and springs 16 connect the articulation lugs 44 and 45 to the housing.
  • the motor 2 drives the roller 3 and its gripper mechanism in rotation.
  • the wheel 8 is set in motion and rotates the counterweight 13, which causes vibratory movements of the vibrating part 10, approximately in translation in direction 46.
  • roller 3 When the roller 3 is applied to the skin and plucks the hairs, it causes a painful sensation but the nerve endings already receive the sensation of the vibrations induced by the ends 11 of the vibrating part 10, and are saturated. The pain is thus erased or significantly reduced.
  • the roller 3 is rotated at a speed of the order of 1200 rpm, and the first shaft 9 has a speed of the order of 6000 rpm.
  • the vibrating part 10 is thus subjected to a vibration of approximately 100 Hz, for which the attenuation of the pain is the most effective.
  • the vibrating part 10 may include a plurality of ends forming keys on each side of the base 41, instead of a single massive branch 42, 43.
  • the drive means of the roller 3 and of the vibrating part 10 can be separated, and in particular comprise separate motors.
  • the configuration shown is however favorable for energy saving and the compactness of the hair removal device.
  • the hair removal device comprises a roller 20 in which is incorporated a pain reduction system.
  • the roller 20 is approximately cylindrical with a circular section and an axis 28.
  • the roller 20 carries two rows 21 and 22 of grippers capable of being moved in operation, arranged along a first diameter 51 of the cylindrical section of the roller 20.
  • Two rows 26 , 27 of brushes intended to sweep the pulled hairs are placed along a second diameter 52 perpendicular to the first diameter 51.
  • Grooves 24, four in number, are formed in the cylinder 20 parallel to the axis 28 and at 45 ° diameters 51 and 52.
  • the grooves 24 are narrowed at the periphery of the roller 20, by means of locking ends 29 .
  • the hair removal device comprises vibrating parts 53 each composed of a counterweight 23 and a heel 25.
  • the heels 25 of the vibrating parts 53 are arranged sliding radially in the grooves 24. They are retained there by means of the locking ends 29.
  • the vibrating parts 53 extend in a plurality along the axis 28 ( Figure 4).
  • the roller 20 rotates and the weights 23 are centrifuged towards the outside of the roller 20, of which they exceed the periphery by several millimeters.
  • the weights 23 strike the latter, causing a vibratory sensation whose frequency is proportional to the speed of rotation and to the number of vibrating parts 53 distributed over the periphery.
  • The. nerve endings are thus saturated.
  • the counterweights 23 retreat into their grooves 24, which allows the roller 20 and the clamps 21, 22 to remain in contact with the skin and to depilate as closely as possible.
  • the roller is designed to rotate at 1500 rpm, which corresponds to a rotation frequency of 25 Hz.
  • the epilation frequency defined as the product of the rotation frequency and the number of rows of pliers distributed over the periphery of the roller 20, is then equal to 50 Hz.
  • the skin is therefore energized at 100 Hz, which produces pain-relieving or pain-relieving effects.
  • the vibrating parts 53 extend in one piece along the axis 28.
  • the number of weights 23 distributed over the periphery of the roller 20 may differ from four and be more or less large, the important thing being to be able to apply a vibratory stress at the desired frequency.
  • the example presented however gives a good reconciliation between the frequencies of hair removal and vibratory stress.
  • a roller 30 carrying vibrating parts 32 comprises, as in the second embodiment, a roller 30 carrying vibrating parts 32.
  • the roller 30, of approximately circular section and axis 38, is equipped with a row 31 of pliers capable of being moved during depilation, parallel to axis 38. It also has two rows 36, 37 of brushes parallel to axis 38, arranged in a plane perpendicular to the row 31 of pliers.
  • the vibrating parts 32 each have a cylindrical shape admitting a generator parallel to the axis 38, and a section of elongated shape. They in particular each have a hinge edge 34 and a free edge 35, at the two ends of this elongated shape.
  • the articulation edge 34 of each of the vibrating parts 32 is connected to the periphery of the roller 30 along an axis of articulation 33, the vibrating part 32 being able to rotate partially around this axis 33.
  • the articulation edges 34 are positioned so as to be in front of rotational movements, these being provided in one direction 39.
  • the vibrating parts are four in number, distributed regularly over the periphery of the roller 30, at approximately 45 ° from the rows 36 and 37 of brushes.
  • the frequency of light impacts is the product of the frequency of rotation and the number of vibrating parts 32 distributed around the periphery of the roller 30.
  • the roller 30 rotates at 1500 rpm, which corresponds to a rotation frequency of 25 Hz.
  • the skin is therefore excited at 100 Hz, which produces the best pain-relieving effects.
  • the number of vibrating parts 32 distributed over the periphery of the roller 30 can be less than four, and each of the massive vibrating parts 32 can be replaced by a row of vibrating parts parallel to the axis 38.
  • the hair removal device according to the invention can be provided with another mechanical hair removal system than that presented in the previous embodiments, consisting of a roller equipped with pliers.
  • these comprise a spring, a set of pliers with vertical movement, or a stack of discs approaching close to the skin to pinch and pluck the hairs.
  • FIG. 6 a fourth embodiment of the hair removal device according to the invention, shown in Figures 6 and 7.
  • the housing 1 of this device epilation is open towards a lower side 62, so as to reveal the ends of blades 63 of pinching of hairs.
  • the blades 63 are carried by a drive part 64, or slide, which includes a lateral lug 65 and two lateral dials 88A and 88B arranged in its upper part, and having substantially the shape of parallel vertical crowns.
  • a vertical groove 66 made in the housing 1 receives the lug 65.
  • the lug 65 designed to slide in the groove 66, thus allows a vertical translational movement of the slider 64 in the housing 1.
  • the hair removal device is provided with means for driving the slide 64.
  • These include in particular a motor 68, a first pinion 71 rotated by the motor 68, and a toothed wheel 72 meshed with the first pinion 71.
  • the toothed wheel 72 is centered on a first shaft 69 which it drives in rotation.
  • the drive means of the slide 64 also comprises two eccentrics 67A and 67B wedged on the first shaft 69, and disposed respectively in openings made in the two lateral dials 88A and 88B.
  • Ball bearings 70 provide the junction between the eccentrics 67A and 67B and the dials 88A and 88B respectively.
  • the eccentrics 67A and 67B driven in rotation by the motor 68 via the first pinion 71, the toothed wheel 72 and the first shaft 69, can thus produce an oscillating vertical movement of the slide 64.
  • the hair removal device also comprises a device for actuating the blades 63.
  • This actuation device comprises in particular a first cam 73 connected to the toothed wheel 72, a second cam 74 associated with the first cam 73, and a rack 75 on which the second cam 74 acts.
  • the rack 75 disposed in the slide 64, is connected to the blades 63, and allows the opening and closing of clamps formed by the blades 63.
  • the hair removal device further comprises a vibrating part 76 in the shape of a horseshoe, which passes through the housing 1 through lower openings 77 and 78.
  • the ends 84 and 85 of the vibrating part 76 projecting respectively from the housing 1 through the openings 77 and 78, form keys applicable on the surface to be epilated, on each side of the epilation zone opposite the blades 63.
  • the ends 84 and 85 are each made of a block. In an alternative embodiment, they comprise a plurality of teeth.
  • Means for driving the vibrating part 76 comprise, in addition to the motor 68, the first pinion 71 and the toothed wheel 72, a second pinion 81 meshed on the toothed wheel 72, and integral with a second shaft 82 arranged along its axis .
  • the second shaft 82 is connected to a third shaft 79 by a flexible transmission joint 83 allowing misalignments between the second pinion 81 and the third shaft 79.
  • the joint 83 is for example a spring.
  • the third shaft 79 is carried by the vibrating part 72. It is integral with an eccentric counterweight 80, having approximately the shape of a half-disc, which it drives in rotation.
  • the vibrating part 76 comprises two upper arms 89A and 89B, crossed by the third shaft 79 and between which the counterweight 80 is disposed.
  • the vibrating part 76 is connected to the housing 1 by two lateral holding pieces 86 and 87 made of low hardness elastomer . These holding pieces 86 and 87 contribute, with the seal 83, to keeping the vibrating piece 76 in the middle position.
  • the open lower part of the housing 1 is applied to the surface to be depilated.
  • the pliers formed by the blades 63 grip the hairs and pull them out by pulling upwards.
  • the rotation of the counterweight 80 at a rotation frequency causes a vertical movement of the vibrating part 76 at an equal vibration frequency.
  • the ends 84 and 85, acting as vibrating keys, thus apply a vibratory mechanical stress to the zone during hair removal, which greatly reduces the pain.
  • the motor rotates at around 6000 rpm as does the counterweight 80, which corresponds to a vibration frequency of 100 Hz.
  • the slider 64 is itself actuated at a frequency four times lower.

Abstract

The hair remover comprises a hand held casing (1) containing hair removal tweezers on roller (3). A vibrating piece (10) is caused to have a periodic to and fro movement by a shaft (12), balance weight (13) and springs (15-17). The drives for the hair remover and the vibrating pieces are activated simultaneously. The roller, with an axis (18), is carried by the casing and extends through a casing opening (19). It is applied against the surface from which hair is to be removed.

Description

La présente invention concerne un dispositif d'épilation mécanique et un procédé d'épilation correspondant.The present invention relates to a mechanical hair removal device and a corresponding hair removal method.

On connaît des dispositifs d'épilation mécanique comportant des pinces disposées sur un rouleau.There are known mechanical hair removal devices comprising tweezers arranged on a roller.

Ces dispositifs admettent une cinématique telle que lorsque le rouleau tourne, les pinces se ferment à proximité de la peau à épiler en serrant les poils, lesquels sont entraînés et arrachés dans la rotation du rouleau avant le desserrage des pinces. D'autres dispositifs mécaniques connus consistent en des ressorts dont les spires se rapprochent, ou des disques dont les bords sont proches, à proximité de la peau, ces dispositifs ayant le même effet que les précédents. On connaît aussi des systèmes ayant des pinces soumises à un mouvement essentiellement vertical.These devices admit a kinematics such that when the roller rotates, the pliers close near the skin to be depilated by tightening the bristles, which are driven and torn away in the rotation of the roller before the clamps are released. Other known mechanical devices consist of springs whose coils approach each other, or discs whose edges are close, close to the skin, these devices having the same effect as the previous ones. Systems are also known having clamps subjected to an essentially vertical movement.

Tous ces dispositifs pincent et tirent les poils de façon aléatoire, c'est-à-dire pas forcément à proximité de la racine. Ainsi, un poil peut-il subir plusieurs tractions avant d'être arraché. Ces tractions successives et l'arrachage excitent les terminaisons nerveuses proches des bulbes des poils et sont à l'origine de douleurs ressenties pendant l'épilation.All of these devices pinch and pull hairs randomly, that is to say not necessarily close to the root. Thus, a hair can undergo several pulls before being torn off. These successive pulls and pulling excite the nerve endings close to the hair bulbs and are the source of pain felt during hair removal.

Dans le document DE-44.08.809 C1, est proposé un appareil d'épilation muni d'un dispositif électrique qui génère des courants dans la peau, afin de réduire les douleurs ressenties par une utilisatrice. Mais un tel dispositif peut être sujet à des contre-indications, telles que le port d'un stimulateur cardiaque, et son efficacité est limitée.In document DE-44.08.809 C1, there is provided a hair removal device provided with an electrical device which generates currents in the skin, in order to reduce the pains felt by a user. However, such a device may be subject to contraindications, such as wearing a pacemaker, and its effectiveness is limited.

Le brevet européen EP-348.862 décrit un dispositif auxiliaire de refroidissement de la peau avant épilation, prévu pour réduire les douleurs. Ce dispositif nécessite cependant une puissance de refroidissement importante pour être efficace, et l'économie de ce système conduit à utiliser l'évaporation de l'eau ou d'une lotion pour refroidir, ce qui est quelque peu contraignant.European patent EP-348,862 describes an auxiliary device for cooling the skin before depilation, intended to reduce pain. This device, however, requires significant cooling power to be effective, and the economy of this system leads to using the evaporation of water or a lotion to cool, which is somewhat restrictive.

Le document EP-A-0.493.849 divulgue une méthode d'épilation selon laquelle des poils sont agrippés et tirés hors de la peau par un organe d'épilation. Juste avant l'épilation, un organe vibrant vient en contact avec la peau à épiler, exerçant des forces d'intensité variable sur la peau de telle sorte que la fonction nerveuse de la peau est affectée.Document EP-A-0,493,849 discloses a method of hair removal according to which hairs are grabbed and pulled out of the skin by a hair removal member. Just before depilation, a vibrating organ comes into contact with the skin to be depilated, exerting forces of varying intensity on the skin so that the nervous function of the skin is affected.

La présente invention a pour objectif un dispositif d'épilation réduisant, ou même supprimant la douleur lors d'une épilation sans avoir les inconvénients mentionnés plus haut.The present invention aims to a hair removal device reducing, or even removing the pain during hair removal without having the disadvantages mentioned above.

L'invention a également pour objectif un tel dispositif d'épilation, ayant une forme compacte.Another object of the invention is also such a hair removal device, having a compact shape.

L'invention vise également un tel dispositif d'épilation de réalisation simple, et ne nécessitant pas d'autre source d'énergie que celle utilisée pour entraîner un rouleau d'épilation.The invention also relates to such a hair removal device which is simple to produce and does not require any other source of energy than that used to drive a hair removal roller.

La présente invention a aussi pour but un procédé d'épilation permettant de réduire la douleur.The present invention also aims at a hair removal method making it possible to reduce pain.

A cet effet, l'invention a pour objet un dispositif d'épilation mécanique comprenant:

  • un boîtier,
  • au moins un moyen d'épilation d'une surface à épiler,
  • des moyens d'entraînement des moyens d'épilation.
  • au moins une pièce vibrante,
  • des moyens d'entraînement des pièces vibrantes, aptes à provoquer un mouvement de va-et-vient périodique de ces pièces, les moyens d'entraînement des moyens d'épilation et des pièces vibrantes étant activés simultanément lors d'une épilation de façon à solliciter en vibration la surface à épiler.
To this end, the invention relates to a mechanical hair removal device comprising:
  • a housing,
  • at least one means of depilating a surface to be depilated,
  • drive means, hair removal means.
  • at least one vibrating part,
  • means for driving the vibrating parts, capable of causing a periodic back-and-forth movement of these parts, the means for driving the epilation means and the vibrating parts being activated simultaneously during epilation so as to vibrate the surface to be epilated.

Selon l'invention, le dispositif d'épilation comprend un rouleau ayant un axe, ce rouleau étant porté par le boîtier et destiné à être appliqué contre la surface à épiler. Les moyens d'épilation sont disposés sur le rouleau et les moyens d'entraînement des moyens d'épilation entraînent le rouleau en rotation.According to the invention, the epilation device comprises a roller having an axis, this roller being carried by the housing and intended to be applied against the surface to be epilated. The depilation means are arranged on the roller and the means the hair removal means drive the roller in rotation.

Ainsi, les terminaisons nerveuses concernées par l'arrachage des poils sont excitées par une sollicitation douloureuse, mais reçoivent en permanence la sollicitation vibratoire continue générant des influx nerveux de haute densité non douloureux. En superposant ainsi une sollicitation douloureuse à une sollicitation de type vibratoire continue et bien ajustée, l'influx nerveux est saturé par les vibrations et on ne ressent plus la douleur.Thus, the nerve endings concerned by the pulling of the hairs are excited by a painful solicitation, but permanently receive the continuous vibratory solicitation generating nerve impulses of high density that are not painful. By thus superimposing a painful stress on a stress of the continuous and well adjusted vibratory type, the nerve impulse is saturated by the vibrations and we no longer feel the pain.

Préférentiellement, les moyens d'entraînement des pièces vibrantes sont couplés aux moyens d'entraînement des moyens d'épilation et activés en fonctionnement par ces moyens d'entraînement des moyens d'épilation.Preferably, the means for driving the vibrating parts are coupled to the means for driving the hair removal means and activated in operation by these means for driving the hair removal means.

Cette configuration permet non seulement une économie des moyens d'énergie employés, mais rend aussi possible une forme compacte du dispositif d'épilation.This configuration not only saves the energy used, but also makes a compact form of the hair removal device possible.

Dans un premier mode de réalisation préféré du dispositif d'épilation selon l'invention, les pièces vibrantes sont destinées à subir un mouvement de translation sensiblement perpendiculaire à la surface à épiler.In a first preferred embodiment of the epilation device according to the invention, the vibrating parts are intended to undergo a translational movement substantially perpendicular to the surface to be epilated.

Avantageusement, les moyens d'entraînement des pièces vibrantes comprennent:

  • un premier arbre disposé en une position fixe dans le boîtier et prévu pour être mû en rotation,
  • un second arbre disposé dans le boîtier de façon approximativement alignée avec le premier arbre et supporté par les pièces vibrantes,
  • un joint élastique reliant les deux arbres,
  • des moyens élastiques reliant de manière souple les pièces vibrantes au boîtier,
  • et une masselotte solidaire du second arbre et excentrée,
de telle sorte qu'une rotation du premier arbre provoque un mouvement de translation des pièces vibrantes sensiblement perpendiculaire à la surface à épiler.Advantageously, the means for driving the vibrating parts include:
  • a first shaft disposed in a fixed position in the housing and designed to be rotated,
  • a second shaft disposed in the housing approximately aligned with the first shaft and supported by the vibrating parts,
  • an elastic joint connecting the two shafts,
  • elastic means flexibly connecting the vibrating parts to the housing,
  • and a counterweight secured to the second shaft and offset,
so that a rotation of the first shaft causes a translational movement of the vibrating parts substantially perpendicular to the surface to be epilated.

Dans ce cas, le dispositif d'épilation comprenant un rouleau sur lequel sont disposés les moyens d'épilation, le premier arbre et le rouleau sont avantageusement entraînés en rotation par un même moteur au moyen d'engrenages.In this case, the hair removal device comprising a roller on which the hair removal means are arranged, the first shaft and the roller are advantageously driven in rotation by the same motor by means of gears.

Dans un deuxième mode de réalisation préféré du dispositif selon l'invention, les pièces vibrantes sont destinées à subir un mouvement de rotation.In a second preferred embodiment of the device according to the invention, the vibrating parts are intended to undergo a rotational movement.

Avantageusement, le dispositif d'épilation comprenant un rouleau porté par le boîtier et sur lequel sont disposés les moyens d'épilation, les pièces vibrantes sont alors disposées sur le rouleau.Advantageously, the hair removal device comprising a roller carried by the housing and on which the hair removal means are arranged, the vibrating parts are then placed on the roller.

Dans une première forme préférée de réalisation de ce second mode de réalisation, le rouleau est muni d'au moins une entaille destinée à recevoir les pièces vibrantes, ces pièces étant aptes à coulisser radicalement dans les entailles et le dispositif d'épilation comporte des moyens de rétention des pièces vibrantes, permettant à ces pièces de sortir partiellement des entailles tout en restant reliées au rouleau. De la sorte, lors d'une rotation du rouleau, les pièces vibrantes sont centrifugées vers l'extérieur.In a first preferred embodiment of this second embodiment, the roller is provided with at least one notch intended to receive the vibrating parts, these parts being able to slide radically in the notches and the depilation device comprises means retention of vibrating parts, allowing these parts to partially exit from the notches while remaining connected to the roller. In this way, during a rotation of the roller, the vibrating parts are centrifuged outwards.

Dans une seconde forme de réalisation préféré du second mode de réalisation, la rouleau ayant un axe, les pièces comprennent chacune un bord d'articulation et un bord libre. Le bord d'articulation est relié au rouleau, et admet une articulation d'axe sensiblement parallèle à l'axe du rouleau, et les moyens d'entraînement du rouleau sont tels que les bords d'articulation soient en avant de mouvements de rotation. De la sorte, lors d'une rotation du rouleau, les bords libres des pièces vibrantes sont centrifugés vers l'extérieur.In a second preferred embodiment of the second embodiment, the roller having an axis, the parts each include a hinge edge and a free edge. The articulation edge is connected to the roller, and has an articulation with an axis substantially parallel to the axis of the roller, and the drive means of the roller are such that the articulation edges are in front of rotational movements. In this way, during a rotation of the roller, the free edges of the vibrating parts are centrifuged outwards.

De préférence, les moyens d'entraînement des pièces vibrantes produisent en fonctionnement une sollicitation vibratoire sur la surface à épiler à une fréquence de vibration approximativement égale à 100 Hz.Preferably, the means for driving the vibrating parts produce a stress during operation. vibration on the surface to be epilated at a vibration frequency approximately equal to 100 Hz.

L'atténuation de la douleur est la plus efficace avec une sollicitation vibratoire à cette fréquence de 100 Hz. Il est par ailleurs souhaitable de ne pas dépasser un maximum de 300 Hz, la réponse nerveuse n'étant plus proportionnelle à la fréquence de sollicitation au-delà.Pain reduction is most effective with vibratory stress at this frequency of 100 Hz. It is also desirable not to exceed a maximum of 300 Hz, the nervous response no longer being proportional to the frequency of stress. -of the.

L'invention a également pour objet un procédé d'épilation mécanique d'une surface à épiler.The invention also relates to a process for mechanical depilation of a surface to be depilated.

Ce procédé est caractérisé en ce qu'on effectue une sollicitation mécanique vibratoire de la surface en cours d'épilation, de façon à réduire des douleurs dues à l'épilation.This process is characterized in that a mechanical vibratory stress is applied to the surface during hair removal, so as to reduce pain due to hair removal.

D'autres particularités et avantages du dispositif et du procédé selon l'invention ressortiront de la description suivante, donnée en référence aux dessins annexés à simple titre indicatif, et sur lesquels:

  • La Figure 1 représente de façon schématique une coupe longitudinale d'un premier mode de réalisation d'un dispositif d'épilation selon l'invention;
  • La Figure 2 montre une section transversale du mode de réalisation représenté à la Figure 1;
  • La Figure 3 montre une section transversale du rouleau présent dans un deuxième mode de réalisation du dispositif d'épilation selon l'invention;
  • La Figure 4 représente une vue longitudinale du rouleau de la Figure 3;
  • La Figure 5 représente une section transversale d'un troisième mode de réalisation du dispositif d'épilation selon l'invention;
  • La Figure 6 montre une section longitudinale d'un quatrième mode de réalisation d'un dispositif d'épilation selon l'invention;
  • La Figure 7 représente en section transversale le dispositif d'épilation de la Figure 6.
Other particularities and advantages of the device and of the method according to the invention will emerge from the following description, given with reference to the accompanying drawings for information only, and in which:
  • Figure 1 schematically shows a longitudinal section of a first embodiment of a hair removal device according to the invention;
  • Figure 2 shows a cross section of the embodiment shown in Figure 1;
  • Figure 3 shows a cross section of the roller present in a second embodiment of the hair removal device according to the invention;
  • Figure 4 shows a longitudinal view of the roller of Figure 3;
  • Figure 5 shows a cross section of a third embodiment of the hair removal device according to the invention;
  • Figure 6 shows a longitudinal section of a fourth embodiment of a hair removal device according to the invention;
  • Figure 7 shows in cross section the hair removal device of Figure 6.

Dans un premier mode de réalisation d'un dispositif d'épilation selon l'invention, représenté aux Figures 1 et 2, ce dispositif comprend un boîtier 1 de forme allongée pouvant être tenu à la main. Le boîtier 1 porte un rouleau 3 d'axe 18, ce rouleau 3 étant muni de pinces, et d'un mécanisme d'ouverture et de fermeture de ces pinces. Le rouleau 3 déborde du boîtier par une ouverture 19, et est destiné à être appliqué contre une surface à épiler au niveau de cette ouverture 19.In a first embodiment of a hair removal device according to the invention, shown in Figures 1 and 2, this device comprises a housing 1 of elongated shape which can be held by hand. The housing 1 carries a roller 3 with an axis 18, this roller 3 being provided with pliers, and a mechanism for opening and closing these pliers. The roller 3 projects from the housing through an opening 19, and is intended to be applied against a surface to be depilated at the level of this opening 19.

Le dispositif d'épilation comprend également un moteur 2 contenu dans le boîtier 1, apte à actionner le rouleau 3 en rotation autour de son axe 18, ainsi que son mécanisme d'ouverture et de fermeture des pinces. La transmission de mouvements du moteur 2 au rouleau 3 se fait par un train d'engrenage constitué de roues telles 4, 5, 6, 7, réduisant la vitesse.The hair removal device also comprises a motor 2 contained in the housing 1, capable of actuating the roller 3 in rotation about its axis 18, as well as its mechanism for opening and closing the clamps. The transmission of movements from motor 2 to roller 3 is done by a gear train made up of wheels such as 4, 5, 6, 7, reducing the speed.

Selon l'invention, le dispositif d'épilation comporte également une pièce vibrante 10. Celle-ci a une forme sensiblement cylindrique admettant une section en U droit et une génératrice parallèle à l'axe 18 du rouleau 3. Elle comprend une base 41 limitée par deux branches 42 et 43 latérales à angle droit, ces deux branches 42 et 43 ayant des extrémités 11. La pièce vibrante 10 entoure partiellement le rouleau 3, les extrémités 11 étant orientées vers l'ouverture 19 et les branches 42 et 43 étant approximativement centrées longitudinalement sur le rouleau 3. Les extrémités 11 sont prévues pour déborder de l'ouverture 19, de façon à matérialiser des touches permettant l'appui de la pièce vibrante 10 sur la peau à épiler, à proximité du rouleau 3 d'épilation. La pièce vibrante 10 est destinée à subir des mouvements sensiblement de translation, perpendiculaires à la surface à épiler, c'est-à-dire approximativement parallèles aux branches 42 et 43, grâce à des moyens d'entraînement de cette pièce vibrante 10.According to the invention, the hair removal device also comprises a vibrating part 10. This has a substantially cylindrical shape admitting a straight U-shaped section and a generator parallel to the axis 18 of the roller 3. It comprises a base 41 limited by two lateral branches 42 and 43 at right angles, these two branches 42 and 43 having ends 11. The vibrating part 10 partially surrounds the roller 3, the ends 11 being oriented towards the opening 19 and the branches 42 and 43 being approximately centered longitudinally on the roller 3. The ends 11 are provided to extend beyond the opening 19, so as to materialize keys allowing the support of the vibrating part 10 on the skin to be depilated, near the depilation roller 3. The vibrating part 10 is intended to undergo substantially translational movements, perpendicular to the surface to be depilated, that is to say approximately parallel to the branches 42 and 43, by means of driving this vibrating part 10.

La pièce vibrante 10 comporte de plus des pattes d'articulation 44 et 45 partant de la base 41 dans un sens opposé aux branches 42 et 43, les pattes 44 et 45 étant sensiblement des plaques rectangulaires orientées perpendiculairement aux pattes 42 et 43.The vibrating part 10 further comprises articulation tabs 44 and 45 starting from the base 41 in a direction opposite to the branches 42 and 43, the tabs 44 and 45 being substantially rectangular plates oriented perpendicularly to the tabs 42 and 43.

Les moyens d'entraînement de la pièce vibrante 10 comprennent notamment une roue 8 engrenée à la roue 6, ainsi qu'un premier arbre 9 solidaire de la roue 8 et disposé selon son axe. Les moyens d'entraînement de la pièce vibrante 10 comprennent également un second arbre 12 supporté par la pièce vibrante 10. Cet arbre 12 est sensiblement aligné en moyenne sur l'arbre 9. Un joint 14 mécanique souple relie les arbres 9 et 12, assurant leur liaison en rotation tout en permettant des désalignements.The drive means of the vibrating part 10 include in particular a wheel 8 meshed with the wheel 6, as well as a first shaft 9 secured to the wheel 8 and arranged along its axis. The means for driving the vibrating part 10 also comprise a second shaft 12 supported by the vibrating part 10. This shaft 12 is substantially aligned on average with the shaft 9. A flexible mechanical seal 14 connects the shafts 9 and 12, ensuring their connection in rotation while allowing misalignments.

L'axe 18 et l'arbre 12 permettent de définir une direction 46 de vibration, cette direction 46 coupant l'arbre 12 et l'axe 18 dans une section transversale du boîtier 1 (Figure 2).The axis 18 and the shaft 12 define a direction 46 of vibration, this direction 46 intersecting the shaft 12 and the axis 18 in a cross section of the housing 1 (Figure 2).

Le second arbre 12 est solidaire d'une masselotte 13 excentrée. Dans l'exemple représenté, la masselotte 13 à une section admettant une forme sensiblement de demi-disque, ayant un centre approximativement au niveau du second arbre 12.The second shaft 12 is integral with an eccentric flyweight 13. In the example shown, the counterweight 13 has a section admitting a substantially half-disc shape, having a center approximately at the level of the second shaft 12.

Le second arbre 12 traverse les pattes d'articulation 44 et 45 de la pièce vibrante 10, qui le porte en le laissant libre en rotation.The second shaft 12 passes through the articulation tabs 44 and 45 of the vibrating part 10, which carries it, leaving it free to rotate.

La masselotte 13 est placée entre les pattes d'articulation 44 et 45, et approximativement centrée au-dessus de la base 41.The counterweight 13 is placed between the articulation tabs 44 and 45, and approximately centered above the base 41.

La pièce vibrante 6 est suspendue dans le boîtier 1 par des liaisons élastiques souples. Par exemple, les ressorts 15 et 17 relient latéralement au boîtier 1 les coudes de liaison entre la base 41 et respectivement les branches 42 et 43, et des ressorts 16 relient au boîtier les pattes d'articulation 44 et 45.The vibrating part 6 is suspended in the housing 1 by flexible elastic connections. For example, the springs 15 and 17 laterally connect the connection elbows between the base 41 and the branches 42 and 43 to the housing 1, and springs 16 connect the articulation lugs 44 and 45 to the housing.

En fonctionnement, le moteur 2 entraîne le rouleau 3 et son mécanisme de pinces en rotation. La roue 8 est mise en mouvement et fait tourner la masselotte 13, qui provoque des mouvements vibratoires de la pièce vibrante 10, approximativement de translation dans la direction 46.In operation, the motor 2 drives the roller 3 and its gripper mechanism in rotation. The wheel 8 is set in motion and rotates the counterweight 13, which causes vibratory movements of the vibrating part 10, approximately in translation in direction 46.

Lorsque le rouleau 3 est appliqué sur la peau et arrache les poils, il provoque une sensation douloureuse mais les terminaisons nerveuses reçoivent déjà la sensation des vibrations induites par les extrémités 11 de la pièce vibrante 10, et sont saturées. La douleur est ainsi effacée ou sensiblement réduite.When the roller 3 is applied to the skin and plucks the hairs, it causes a painful sensation but the nerve endings already receive the sensation of the vibrations induced by the ends 11 of the vibrating part 10, and are saturated. The pain is thus erased or significantly reduced.

De préférence, le rouleau 3 est entraîné en rotation à une vitesse de l'ordre de 1200 t/mn, et le premier arbre 9 a une vitesse de l'ordre de 6000 t/mn. La pièce vibrante 10 est ainsi soumise à une vibration d'environ 100 Hz, pour laquelle l'atténuation de la douleur est la plus efficace.Preferably, the roller 3 is rotated at a speed of the order of 1200 rpm, and the first shaft 9 has a speed of the order of 6000 rpm. The vibrating part 10 is thus subjected to a vibration of approximately 100 Hz, for which the attenuation of the pain is the most effective.

En variante de ce premier mode de réalisation, la pièce vibrante 10 peut comporter une pluralité d'extrémités formant des touches de chacun des côtés de la base 41, au lieu d'une unique branche massive 42, 43.As a variant of this first embodiment, the vibrating part 10 may include a plurality of ends forming keys on each side of the base 41, instead of a single massive branch 42, 43.

De plus, les moyens d'entraînement du rouleau 3 et de la pièce vibrante 10 peuvent être dissociés, et comprendre notamment des moteurs distincts. La configuration représentée est cependant favorable à une économie d'énergie et à la compacité du dispositif d'épilationIn addition, the drive means of the roller 3 and of the vibrating part 10 can be separated, and in particular comprise separate motors. The configuration shown is however favorable for energy saving and the compactness of the hair removal device.

Dans un second mode de réalisation du dispositif d'épilation selon l'invention, représenté aux Figures 3 et 4, le dispositif d'épilation comporte un rouleau 20 dans lequel est incorporé un système d'atténuation de la douleur.In a second embodiment of the hair removal device according to the invention, shown in Figures 3 and 4, the hair removal device comprises a roller 20 in which is incorporated a pain reduction system.

Le rouleau 20 est approximativement cylindrique de section circulaire et d'axe 28. Le rouleau 20 porte deux rangées 21 et 22 de pinces aptes à être mues en fonctionnement, disposées selon un premier diamètre 51 de la section cylindrique du rouleau 20. Deux rangées 26, 27 de brossettes destinées à balayer les poils arrachés sont placées selon un second diamètre 52 perpendiculaire au premier diamètre 51.The roller 20 is approximately cylindrical with a circular section and an axis 28. The roller 20 carries two rows 21 and 22 of grippers capable of being moved in operation, arranged along a first diameter 51 of the cylindrical section of the roller 20. Two rows 26 , 27 of brushes intended to sweep the pulled hairs are placed along a second diameter 52 perpendicular to the first diameter 51.

Des rainures 24, au nombre de quatre, sont pratiquées dans le cylindre 20 parallèlement à l'axe 28 et à 45° des diamètres 51 et 52. Les rainures 24 sont rétrécies en périphérie du rouleau 20, au moyen d'extrémités de blocage 29.Grooves 24, four in number, are formed in the cylinder 20 parallel to the axis 28 and at 45 ° diameters 51 and 52. The grooves 24 are narrowed at the periphery of the roller 20, by means of locking ends 29 .

Le dispositif d'épilation comporte des pièces vibrantes 53 composées chacune d'une masselotte 23 et d'un talon 25. Les talons 25 des pièces vibrantes 53 sont disposés coulissant radialement dans les rainures 24. Ils y sont retenus au moyen des extrémités de blocage 29. Dans l'exemple de réalisation exposé, les pièces vibrantes 53 s'étendent en une pluralité le long de l'axe 28 (Figure 4).The hair removal device comprises vibrating parts 53 each composed of a counterweight 23 and a heel 25. The heels 25 of the vibrating parts 53 are arranged sliding radially in the grooves 24. They are retained there by means of the locking ends 29. In the embodiment shown, the vibrating parts 53 extend in a plurality along the axis 28 (Figure 4).

En fonctionnement, le rouleau 20 tourne et les masselottes 23 sont centrifugées vers l'extérieur du rouleau 20, dont elles dépassent la périphérie de plusieurs millimètres. Pendant l'application du rouleau 20 sur la peau, les masselottes 23 viennent frapper cette dernière, provoquant une sensation vibratoire dont la fréquence est proportionnelle à la vitesse de rotation et au nombre de pièces vibrantes 53 réparties sur la périphérie. Les. terminaisons nerveuses sont ainsi saturées. Après chaque choc contre la peau, les masselottes 23 reculent dans leur rainures 24, ce qui permet au rouleau 20 et aux pinces 21, 22 de rester au contact de la peau et d'épiler au plus près.In operation, the roller 20 rotates and the weights 23 are centrifuged towards the outside of the roller 20, of which they exceed the periphery by several millimeters. During the application of the roller 20 on the skin, the weights 23 strike the latter, causing a vibratory sensation whose frequency is proportional to the speed of rotation and to the number of vibrating parts 53 distributed over the periphery. The. nerve endings are thus saturated. After each impact against the skin, the counterweights 23 retreat into their grooves 24, which allows the roller 20 and the clamps 21, 22 to remain in contact with the skin and to depilate as closely as possible.

De préférence, le rouleau est prévu pour tourner à 1500 t/mn, ce qui correspond à une fréquence de rotation de 25 Hz.Preferably, the roller is designed to rotate at 1500 rpm, which corresponds to a rotation frequency of 25 Hz.

La fréquence d'épilation, définie comme le produit de la fréquence de rotation et du nombre de rangées de pinces réparties sur la périphérie du rouleau 20, vaut alors 50 Hz.The epilation frequency, defined as the product of the rotation frequency and the number of rows of pliers distributed over the periphery of the roller 20, is then equal to 50 Hz.

Etant donné que quatre pièces vibrantes 53 sont réparties sur la périphérie du rouleau 20, la peau est donc excitée à 100 Hz, ce qui produit les effets de suppression ou d'atténuation de la douleur.Since four vibrating parts 53 are distributed over the periphery of the roller 20, the skin is therefore energized at 100 Hz, which produces pain-relieving or pain-relieving effects.

Dans une variante de ce second mode de réalisation, les pièces vibrantes 53 s'étendent en une seule pièce le long de l'axe 28.In a variant of this second embodiment, the vibrating parts 53 extend in one piece along the axis 28.

Le nombre de masselottes 23 réparties sur la périphérie du rouleau 20 peut différer de quatre et être plus ou moins grand, l'important étant de pouvoir appliquer une sollicitation vibratoire à la fréquence voulue. L'exemple présenté donne cependant une bonne conciliation entre les fréquences d'épilation et de sollicitation vibratoire.The number of weights 23 distributed over the periphery of the roller 20 may differ from four and be more or less large, the important thing being to be able to apply a vibratory stress at the desired frequency. The example presented however gives a good reconciliation between the frequencies of hair removal and vibratory stress.

Dans un troisième mode de réalisation du dispositif d'épilation selon l'invention, représenté sur la Figure 5, celui-ci comporte comme dans le second mode de réalisation un rouleau 30 porteur de pièces vibrantes 32. Le rouleau 30, de section approximativement circulaire et d'axe 38, est équipé d'une rangée 31 de pinces aptes à être mues lors d'une épilation, parallèles à l'axe 38. Il comporte également deux rangées 36, 37 de brossettes parallèles à l'axe 38, disposées dans un plan perpendiculaire à la rangée 31 de pinces.In a third embodiment of the hair removal device according to the invention, represented in FIG. 5, this comprises, as in the second embodiment, a roller 30 carrying vibrating parts 32. The roller 30, of approximately circular section and axis 38, is equipped with a row 31 of pliers capable of being moved during depilation, parallel to axis 38. It also has two rows 36, 37 of brushes parallel to axis 38, arranged in a plane perpendicular to the row 31 of pliers.

Les pièces vibrantes 32 ont chacune une forme cylindrique admettant une génératrice parallèle à l'axe 38, et une section de forme allongée. Elles comportent notamment chacune un bord d'articulation 34 et un bord libre 35, aux deux bouts de cette forme allongée. Le bord d'articulation 34 de chacune des pièces vibrantes 32 est relié à la périphérie du rouleau 30 selon un axe 33 d'articulation, la pièce vibrante 32 pouvant tourner partiellement autour de cet axe 33. Les bords d'articulation 34 sont positionnés de façon à être en avant de mouvements de rotation, ceux-ci étant prévu dans un sens 39.The vibrating parts 32 each have a cylindrical shape admitting a generator parallel to the axis 38, and a section of elongated shape. They in particular each have a hinge edge 34 and a free edge 35, at the two ends of this elongated shape. The articulation edge 34 of each of the vibrating parts 32 is connected to the periphery of the roller 30 along an axis of articulation 33, the vibrating part 32 being able to rotate partially around this axis 33. The articulation edges 34 are positioned so as to be in front of rotational movements, these being provided in one direction 39.

Dans l'exemple exposé, les pièces vibrantes sont au nombre de quatre, réparties régulièrement sur la périphérie du rouleau 30, à approximativement 45° des rangées 36 et 37 de brossettes.In the example described, the vibrating parts are four in number, distributed regularly over the periphery of the roller 30, at approximately 45 ° from the rows 36 and 37 of brushes.

En fonctionnement, le rouleau 30 étant en rotation, les bords libres 35 des pièces vibrantes 32 sont centrifugées et viennent frapper la peau au voisinage de la zone d'épilation.In operation, the roller 30 being in rotation, the free edges 35 of the vibrating parts 32 are centrifuged and strike the skin in the vicinity of the depilation zone.

La fréquence des chocs légers est le produit de la fréquence de rotation et du nombre de pièces vibrantes 32 réparties sur périphérie du rouleau 30. De préférence, dans l'exemple présenté, le rouleau 30 tourne à 1500 t/mn, ce qui correspond à une fréquence de rotation de 25 Hz. La peau est donc excitée à 100 Hz, ce qui produit les meilleurs effets anti-douleur.The frequency of light impacts is the product of the frequency of rotation and the number of vibrating parts 32 distributed around the periphery of the roller 30. Preferably, in the example presented, the roller 30 rotates at 1500 rpm, which corresponds to a rotation frequency of 25 Hz. The skin is therefore excited at 100 Hz, which produces the best pain-relieving effects.

En variante, le nombre de pièces vibrantes 32 réparties sur la périphérie du rouleau 30 peut être plus au moins grand que quatre, et chacune des pièces vibrantes 32 massives peut être remplacée par une rangée de pièces vibrantes parallèle à l'axe 38.As a variant, the number of vibrating parts 32 distributed over the periphery of the roller 30 can be less than four, and each of the massive vibrating parts 32 can be replaced by a row of vibrating parts parallel to the axis 38.

Le dispositif d'épilation selon l'invention peut être muni d'un autre système d'épilation mécanique que celui présenté dans les précédents modes de réalisation, consistant en un rouleau équipé de pinces. Ainsi, selon d'autres formes de réalisation des moyens d'épilation, ceux-ci comprennent un ressort, un jeu de pinces à mouvement vertical, ou un empilage de disques se rapprochant à proximité de la peau pour pincer et arracher les poils.The hair removal device according to the invention can be provided with another mechanical hair removal system than that presented in the previous embodiments, consisting of a roller equipped with pliers. Thus, according to other embodiments of the depilation means, these comprise a spring, a set of pliers with vertical movement, or a stack of discs approaching close to the skin to pinch and pluck the hairs.

Une de ces autres possibilités, consistant en un jeu de pinces à mouvement vertical, est illustrée par un quatrième mode de réalisation du dispositif d'épilation selon l'invention, représenté sur les Figures 6 et 7. Le boîtier 1 de ce dispositif d'épilation est ouvert vers un côté inférieur 62, de façon à laisser apparaître les extrémités de lames 63 de pincement de poils.One of these other possibilities, consisting of a set of pliers with vertical movement, is illustrated by a fourth embodiment of the hair removal device according to the invention, shown in Figures 6 and 7. The housing 1 of this device epilation is open towards a lower side 62, so as to reveal the ends of blades 63 of pinching of hairs.

Les lames 63 sont portées par une pièce d'entraînement 64, ou coulisseau, qui comprend un ergot 65 latéral et deux cadrans latéraux 88A et 88B disposés dans sa partie supérieure, et ayant sensiblement des formes de couronnes verticales parallèles. Une rainure 66 verticale pratiquée dans le boîtier 1 accueille l'ergot 65. L'ergot 65, prévu pour coulisser dans la rainure 66, permet ainsi un mouvement de translation vertical du coulisseau 64 dans le boîtier 1.The blades 63 are carried by a drive part 64, or slide, which includes a lateral lug 65 and two lateral dials 88A and 88B arranged in its upper part, and having substantially the shape of parallel vertical crowns. A vertical groove 66 made in the housing 1 receives the lug 65. The lug 65, designed to slide in the groove 66, thus allows a vertical translational movement of the slider 64 in the housing 1.

Le dispositif d'épilation est muni de moyens d'entraînement du coulisseau 64. Ceux-ci comportent notamment un moteur 68, un premier pignon 71 mû en rotation par le moteur 68, et une roue dentée 72 engrenée sur le premier pignon 71. La roue dentée 72 est centrée sur un premier arbre 69 qu'elle entraîne en rotation. Les moyens d'entraînement du coulisseau 64 comporte également deux excentriques 67A et 67B calés sur le premier arbre 69, et disposés respectivement en des ouvertures pratiquées dans les deux cadrans latéraux 88A et 88B. Des roulements à billes 70 assurent la jonction entre les excentriques 67A et 67B et respectivement les cadrans 88A et 88B. Les excentriques 67A et 67B, entraînés en rotation par le moteur 68 via le premier pignon 71, la roue dentée 72 et le premier arbre 69, peuvent ainsi produire un mouvement vertical oscillant du coulisseau 64.The hair removal device is provided with means for driving the slide 64. These include in particular a motor 68, a first pinion 71 rotated by the motor 68, and a toothed wheel 72 meshed with the first pinion 71. The toothed wheel 72 is centered on a first shaft 69 which it drives in rotation. The drive means of the slide 64 also comprises two eccentrics 67A and 67B wedged on the first shaft 69, and disposed respectively in openings made in the two lateral dials 88A and 88B. Ball bearings 70 provide the junction between the eccentrics 67A and 67B and the dials 88A and 88B respectively. The eccentrics 67A and 67B, driven in rotation by the motor 68 via the first pinion 71, the toothed wheel 72 and the first shaft 69, can thus produce an oscillating vertical movement of the slide 64.

Le dispositif d'épilation comprend également un dispositif d'actionnement des lames 63. Ce dispositif d'actionnement comprend en particulier une première came 73 reliée à la roue dentée 72, une seconde came 74 associée à la première came 73, et une crémaillère 75 sur laquelle agit la seconde came 74. la crémaillère 75, disposée dans le coulisseau 64, est reliée aux lames 63, et permet l'ouverture et la fermeture de pinces formées par les lames 63.The hair removal device also comprises a device for actuating the blades 63. This actuation device comprises in particular a first cam 73 connected to the toothed wheel 72, a second cam 74 associated with the first cam 73, and a rack 75 on which the second cam 74 acts. the rack 75, disposed in the slide 64, is connected to the blades 63, and allows the opening and closing of clamps formed by the blades 63.

Le dispositif d'épilation comprend de plus une pièce vibrante 76 en forme de fer à cheval, qui traverse le boîtier 1 par des ouvertures 77 et 78 inférieures. Les extrémités 84 et 85 de la pièce vibrante 76, dépassant respectivement du boîtier 1 par les ouvertures 77 et 78, forment des touches applicables sur la surface à épiler, de chaque côté de la zone d'épilation en regard des lames 63. Les extrémités 84 et 85 sont chacune faite d'un bloc. Dans une variante de réalisation, elles comprennent une pluralité de dents.The hair removal device further comprises a vibrating part 76 in the shape of a horseshoe, which passes through the housing 1 through lower openings 77 and 78. The ends 84 and 85 of the vibrating part 76, projecting respectively from the housing 1 through the openings 77 and 78, form keys applicable on the surface to be epilated, on each side of the epilation zone opposite the blades 63. The ends 84 and 85 are each made of a block. In an alternative embodiment, they comprise a plurality of teeth.

Des moyens d'entraînement de la pièce vibrante 76 comprennent, outre le moteur 68, le premier pignon 71 et la roue dentée 72, un second pignon 81 engrené sur la roue dentée 72, et solidaire d'un deuxième arbre 82 disposé selon son axe. Le deuxième arbre 82 est relié à un troisième arbre 79 par un joint 83 de transmission souple permettant des désalignements entre le second pignon 81 et le troisième arbre 79. Le joint 83 est par exemple un ressort. Le troisième arbre 79 est porté par la pièce vibrante 72. Il est solidaire d'une masselotte 80 excentrée, ayant approximativement la forme d'un demi-disque, qu'il entraîne en rotation. La pièce vibrante 76 comprend deux bras supérieurs 89A et 89B, traversés par le troisième arbre 79 et entre lesquels est disposée la masselotte 80. La pièce vibrante 76 est reliée au boîtier 1 par deux pièces de maintien 86 et 87 latérales en élastomère de faible dureté. Ces pièces de maintien 86 et 87 contribuent, avec le joint 83, à maintenir en position moyenne la pièce vibrante 76.Means for driving the vibrating part 76 comprise, in addition to the motor 68, the first pinion 71 and the toothed wheel 72, a second pinion 81 meshed on the toothed wheel 72, and integral with a second shaft 82 arranged along its axis . The second shaft 82 is connected to a third shaft 79 by a flexible transmission joint 83 allowing misalignments between the second pinion 81 and the third shaft 79. The joint 83 is for example a spring. The third shaft 79 is carried by the vibrating part 72. It is integral with an eccentric counterweight 80, having approximately the shape of a half-disc, which it drives in rotation. The vibrating part 76 comprises two upper arms 89A and 89B, crossed by the third shaft 79 and between which the counterweight 80 is disposed. The vibrating part 76 is connected to the housing 1 by two lateral holding pieces 86 and 87 made of low hardness elastomer . These holding pieces 86 and 87 contribute, with the seal 83, to keeping the vibrating piece 76 in the middle position.

En fonctionnement, on applique la partie inférieure ouverte du boîtier 1 sur la surface à épiler. Les pinces formées par les lames 63 saisissent les poils et les arrachent en tirant vers le haut. Simultanément et continuellement, la rotation de la masselotte 80 à une fréquence de rotation provoque un mouvement vertical de la pièce vibrante 76 à une fréquence de vibration égale. Les extrémités 84 et 85, agissant comme des touches vibrantes, appliquent ainsi une sollicitation mécanique vibratoire à la zone en cours d'épilation, ce qui atténue fortement la douleur.In operation, the open lower part of the housing 1 is applied to the surface to be depilated. The pliers formed by the blades 63 grip the hairs and pull them out by pulling upwards. Simultaneously and continuously, the rotation of the counterweight 80 at a rotation frequency causes a vertical movement of the vibrating part 76 at an equal vibration frequency. The ends 84 and 85, acting as vibrating keys, thus apply a vibratory mechanical stress to the zone during hair removal, which greatly reduces the pain.

Avantageusement, le moteur tourne à 6000 t/mn environ de même que la masselotte 80, ce qui correspond à une fréquence de vibration de 100 Hz. Le coulisseau 64 est quant à lui actionné à une fréquence quatre fois plus basse.Advantageously, the motor rotates at around 6000 rpm as does the counterweight 80, which corresponds to a vibration frequency of 100 Hz. The slider 64 is itself actuated at a frequency four times lower.

Claims (10)

Dispositif d'épilation mécanique comprenant: - un boîtier (1), - au moins un moyen d'épilation (21, 22, 31, 63) d'une surface à épiler, - des moyens d'entraînement (2, 4-7, 67-75) des moyens d'épilation (21, 22, 31, 63), - au moins une pièce vibrante (10, 23, 32, 76), - des moyens d'entraînement (2, 4-6, 8, 9, 12-17, 68, 71, 72, 79-83), des pièces vibrantes (10, 23, 32, 76) aptes à provoquer un mouvement de va-et-vient périodique desdites pièces (10, 23, 32, 76), les moyens d'entraînement des moyens d'épilation (21, 22, 31, 63), et des pièces vibrantes (10, 23, 32, 76) étant activés simultanément lors d'une épilation de façon à solliciter en vibration la surface à épiler, caractérisé en ce qu'il comprend un rouleau (3, 20, 30) ayant un axe (18, 28, 38), ledit rouleau étant porté par le boîtier (1) et destiné à être appliqué contre la surface à épiler, lesdits moyens d'épilation (21, 22, 31) étant disposés sur le rouleau (3, 20, 30) et les moyens d'entraînement (2, 4-7) des moyens d'épilation (21, 22, 31) entraînant le rouleau (3, 20, 30) en rotation. Mechanical hair removal device comprising: - a housing (1), - at least one means of depilation (21, 22, 31, 63) of a surface to be depilated, - drive means (2, 4-7, 67-75) hair removal means (21, 22, 31, 63), - at least one vibrating part (10, 23, 32, 76), - drive means (2, 4-6, 8, 9, 12-17, 68, 71, 72, 79-83), vibrating parts (10, 23, 32, 76) capable of causing a movement of periodic back and forth of said parts (10, 23, 32, 76), the drive means of the epilation means (21, 22, 31, 63), and vibrating parts (10, 23, 32, 76 ) being activated simultaneously during epilation so as to vibrate the surface to be epilated, characterized in that it comprises a roller (3, 20, 30) having an axis (18, 28, 38), said roller being carried by the housing (1) and intended to be applied against the surface to be epilated, said epilation means (21, 22, 31) being arranged on the roller (3, 20, 30) and the drive means (2 , 4-7) depilation means (21, 22, 31) driving the roller (3, 20, 30) in rotation. Dispositif d'épilation selon la revendication 1, caractérisé en ce que les moyens d'entraînement (2, 4-6, 8, 9, 12-17, 68, 71, 72, 79-83) des pièces vibrantes (10, 23, 32, 76) sont couplés aux moyens d'entraînement (2, 4-7, 67-75) des moyens d'épilation (21, 22, 31, 63), et activés en fonctionnement par lesdits moyens d'entraînement des moyens d'épilation (21, 22, 31, 63).Hair removal device according to claim 1, characterized in that the drive means (2, 4-6, 8, 9, 12-17, 68, 71, 72, 79-83) of the vibrating parts (10, 23 , 32, 76) are coupled to the drive means (2, 4-7, 67-75) of the hair removal means (21, 22, 31, 63), and activated in operation by said drive means of the means hair removal (21, 22, 31, 63). Dispositif d'épilation selon l'une des revendications 1 ou 2, caractérisé en ce que les pièces vibrantes (10, 76) sont destinées à subir un mouvement de translation sensiblement perpendiculaire à la surface à épiler.Hair removal device according to one of claims 1 or 2, characterized in that the vibrating parts (10, 76) are intended to undergo a translational movement substantially perpendicular to the surface to be epilated. Dispositif d'épilation selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens d'entraînement des pièces vibrantes (10) comprennent: - un premier arbre (9) disposé en une position fixe dans le boîtier (1), et prévu pour être mu en rotation, - un second arbre (12) disposé dans le boîtier (1) de façon approximativement alignée avec le premier arbre (9) est supporté par lesdites pièces vibrantes (10), - un joint élastique (14) reliant les deux arbres (9, 12), - des moyens élastiques (15-17) reliant de manière souple les pièces vibrantes (10) au boîtier (1), - et une masselotte (13) solidaire du second arbre (12) et excentrée, de telle sorte qu'une rotation du premier arbre (9) provoque un mouvement de translation des pièces vibrantes (10) sensiblement perpendiculaire à la surface à épiler .Hair removal device according to any one of the preceding claims, characterized in that the means for driving the vibrating parts (10) comprise: - a first shaft (9) disposed in a fixed position in the housing (1), and designed to be rotated, - a second shaft (12) disposed in the housing (1) approximately aligned with the first shaft (9) is supported by said vibrating parts (10), - an elastic seal (14) connecting the two shafts (9, 12), - elastic means (15-17) flexibly connecting the vibrating parts (10) to the housing (1), - and a counterweight (13) integral with the second shaft (12) and eccentric, so that a rotation of the first shaft (9) causes a translational movement of the vibrating parts (10) substantially perpendicular to the surface to be epilated. Dispositif d'épilation selon la revendication 4, caractérisé en ce que ledit dispositif comprenant un rouleau (3) sur lequel sont disposés le premier arbre (9) et le rouleau (3) sont entraînés en rotation par un même moteur (2) au moyen d'engrenages (4, 8).Hair removal device according to claim 4, characterized in that said device comprising a roller (3) on which the first shaft (9) and the roller (3) are arranged are rotated by the same motor (2) by means gears (4, 8). Dispositif d'épilation selon l'une des revendications 1 ou 2, caractérisé en ce que les pièces vibrantes (23, 32) sont destinées à subir un mouvement de rotation.Hair removal device according to one of claims 1 or 2, characterized in that the vibrating parts (23, 32) are intended to undergo a rotational movement. Dispositif d'épilation selon la revendication 6, caractérisé en ce que ledit dispositif comprenant un rouleau (20, 30) porté par le boîtier (1) et sur lequel sont disposés les moyens d'épilation (21, 22, 31), les pièces vibrantes (23, 32) sont disposées sur le rouleau (20, 30).Hair removal device according to claim 6, characterized in that said device comprising a roller (20, 30) carried by the housing (1) and on which are disposed the hair removal means (21, 22, 31), the parts vibrators (23, 32) are arranged on the roller (20, 30). Dispositif d'épilation selon la revendication 7, caractérisé en ce que le rouleau (20) est muni d'au moins une entaille (24) destinée à recevoir les pièces vibrantes (23), lesdites pièces étant aptes à coulisser radialement dans les entailles (24) et le dispositif d'épilation comporte des moyens de rétention (25, 27) des pièces vibrantes (23), permettant auxdites pièces de sortir partiellement des entailles (24) tout en restant reliées au rouleau (20), de telle sorte que lors d'une rotation du rouleau (20) les pièces vibrantes (23) sont centrifugées vers l'extérieur.Hair removal device according to claim 7, characterized in that the roller (20) is provided with at least one notch (24) intended to receive the vibrating parts (23), said parts being able to slide radially in the notches ( 24) and the hair removal device comprises means for retaining (25, 27) the vibrating parts (23), allowing the said parts to partially leave the notches (24) while remaining connected to the roller (20), so that during a rotation of the roller (20) the vibrating parts (23) are centrifuged outwards. Dispositif d'épilation selon la revendication 7, caractérisé en ce que le rouleau (30) ayant un axe (38), les pièces vibrantes (32) comprennent chacune un bord d'articulation (34) et un bord libre (35), le bord d'articulation (34) étant relié au rouleau (30) et admettant une articulation (33) d'axe sensiblement parallèle à l'axe (38) du rouleau (30), et les moyens d'entraînement du rouleau (30) sont tels que lesdits bords d'articulation (34) soient en avant de mouvements (37) de rotation, de telle sorte que lors d'une rotation du rouleau (30), les bords libres (35) des pièces vibrantes (32) sont centrifugés vers l'extérieur.Hair removal device according to claim 7, characterized in that the roller (30) having an axis (38), the vibrating parts (32) each include a hinge edge (34) and a free edge (35), the articulation edge (34) being connected to the roller (30) and admitting an articulation (33) with an axis substantially parallel to the axis (38) of the roller (30), and the means for driving the roller (30 ) are such that said articulation edges (34) are in front of rotational movements (37), so that during a rotation of the roller (30), the free edges (35) of the vibrating parts (32) are centrifuged outwards. Dispositif d'épilation selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens d'entraînement (2, 4-6, 8, 9, 12-17, 68, 71, 72, 79-83) des pièces vibrantes (10, 23, 32, 76) produisent en fonctionnement une sollicitation vibratoire sur la surface à épiler, à une fréquence de vibration approximativement égale à 100 Hz.Hair removal device according to any one of the preceding claims, characterized in that the drive means (2, 4-6, 8, 9, 12-17, 68, 71, 72, 79-83) of the vibrating parts (10, 23, 32, 76) produce in operation a vibratory stress on the surface to be depilated, at a vibration frequency approximately equal to 100 Hz.
EP97400476A 1996-03-13 1997-02-28 Anti pain mechanical hair removal device and method Expired - Lifetime EP0795283B1 (en)

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FR9603177A FR2745992B1 (en) 1996-03-13 1996-03-13 MECHANICAL PAIN REMOVAL DEVICE AND RELATED METHOD
FR9603177 1996-03-13

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AT (1) ATE229287T1 (en)
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ES (1) ES2184041T3 (en)
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DE19809436A1 (en) * 1998-03-05 1999-09-09 Braun Gmbh Attachment for a device for plucking hair from human skin
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EP0807388B1 (en) * 1996-05-15 2002-04-17 Matsushita Electric Works, Ltd. Hand-held depilating device with a pain masking stimulator
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EP0938270B1 (en) * 1997-09-16 2016-02-24 Seb S.A. Hair-removing device with rotary roller equipped with pain-soothing device

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EP0807388B1 (en) * 1996-05-15 2002-04-17 Matsushita Electric Works, Ltd. Hand-held depilating device with a pain masking stimulator
EP0938270B1 (en) * 1997-09-16 2016-02-24 Seb S.A. Hair-removing device with rotary roller equipped with pain-soothing device
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CN102098941B (en) * 2008-06-09 2013-06-12 阿普里松尼克斯有限公司 Device for applying high-frequency vibrations to hair for removing same

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US5893854A (en) 1999-04-13
EP0795283B1 (en) 2002-12-11
DE69717698T2 (en) 2003-08-21
FR2745992A1 (en) 1997-09-19
ES2184041T3 (en) 2003-04-01
FR2745992B1 (en) 1998-08-28
PT795283E (en) 2003-03-31
ATE229287T1 (en) 2002-12-15
DE69717698D1 (en) 2003-01-23

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