EP2247216B1 - Epilator with optimized air flow - Google Patents

Epilator with optimized air flow Download PDF

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Publication number
EP2247216B1
EP2247216B1 EP09718991A EP09718991A EP2247216B1 EP 2247216 B1 EP2247216 B1 EP 2247216B1 EP 09718991 A EP09718991 A EP 09718991A EP 09718991 A EP09718991 A EP 09718991A EP 2247216 B1 EP2247216 B1 EP 2247216B1
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EP
European Patent Office
Prior art keywords
electric motor
epilator
roller
casing
appliance according
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Not-in-force
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EP09718991A
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German (de)
French (fr)
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EP2247216A2 (en
Inventor
Jérôme Fabron
Patrick Stumboff
Pierre Durif
Benoît LINGLIN
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SEB SA
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SEB SA
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Publication of EP2247216A2 publication Critical patent/EP2247216A2/en
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Publication of EP2247216B1 publication Critical patent/EP2247216B1/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
    • A45D26/0023—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements
    • A45D26/0033—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements with rollers

Definitions

  • the present invention relates to a tweezers of the type comprising pliers for tearing unwanted hair, unwanted, the human body, and more particularly relates to such an apparatus equipped with means for reducing the pain caused by tearing of the bristles. fur.
  • This type of apparatus generally comprises blade or disk-shaped grippers arranged on a rotating or oscillating roller, arranged in the upper part of a housing forming a gripping means, the roller being driven in motion by an electric motor arranged in a the same case.
  • the forceps are caused to close and open periodically so as to grasp the hair close to the skin, tear them off, and then evacuate them, during the movement of the roller.
  • Hair removal by pulling hair is a very effective method against their regrowth, but it is sometimes quite painful. This pain is due to the repeated pulling on the hair, or to the lesions or irritations of the hair follicles caused by the pulling of the hairs.
  • apparatus comprising means for producing a flow of air to the skin via a flat nozzle adjacent to the hair removal roller. Functioning to satisfaction, without resorting to means of moistening the skin, this device is quite noisy in operation. An analysis of the device found that the noise was due mainly to the multiple sets of gears used in the transmission of the movement from its drive motor.
  • the object of the present invention is to overcome the aforementioned drawbacks and to provide a tweezers device with tearing pliers comprising painter means capable of producing a flow of air for insensitizing the area of skin to be epilated effectively during l hair removal operation, while being silent in operation.
  • Another object of the invention is to provide a depilatory device comprising painter means capable of producing an air flow with improved airflow efficiency, which are simple in structure and reliable, while being economical to achieve.
  • Another object of the invention is to provide a depilatory apparatus of compact construction, of small dimensions, which can easily be held by hand, while incorporating effective and reliable pain relief means over time.
  • a depilatory apparatus comprising a housing intended to be hand-held comprising hair removal means for tearing the hair on the skin and means for driving the hair removal means comprising a first electric motor, and a fan driven by a second electric motor to create an air flow between an inlet opening of the housing and an outlet opening of the housing, because the output shaft of the second electric motor is angularly offset relative to to the output axis of the first electric motor.
  • the epilator comprises, within a hand-held housing, depilatory means driven by a first electric motor for actuating at least one pulling pliers in a cyclic movement of closing, relative movement relative to the skin for the tearing of the hairs inside the closed clamp, and opening to start a new epilation cycle.
  • the housing of the apparatus also contains a fan set in motion by a second electric motor, which fan is provided to create a flow of air between an air inlet in the housing and an air outlet of the housing.
  • two drive motors are associated in the same housing of a tweezer where, by means of the arrangement of the second motor oriented with its inclined output axis, thus making an angle other than zero with the axis of the first drive motor of the epilation head, one manages to avoid the use of a bevel gear, significant source of noise, in the transmission gears of the movement to the epilating head.
  • This therefore makes it possible to provide a direct drive to the fan and also to arrange the motor of the depilatory head so that it can be driven with parallel gears.
  • first drive motor for the epilation head low speed, high torque
  • second drive motor for the fan having characteristics different from those of the first (high speed and low torque)
  • the direct drive of the fan by a motor operating at high speed allows it to provide a powerful air flow, the flow rate of the blown air flow being directly proportional to the speed of rotation of its wheel.
  • This combined with the drive by parallel gears of the depilating head, provides an apparatus producing a flow of air with analgesic effect effective and silent, moreover, a consequence of the removal of the referral to 90 ° in the transmission, as was the case in the apparatus of the patent application FR0607026 of the plaintiff.
  • the fan wheel whose dimensions have been calculated to obtain a powerful airflow necessary to obtain the desired painkiller effect, could be arranged in an optimum manner as to the direction of the outgoing airflow, while the orienting to obtain a small footprint and an advantageous design of the apparatus.
  • the depilating means comprise at least one tear-off pliers carried by an epilation roller rotating about its longitudinal axis and the output shaft of the second electric motor is substantially transverse to the longitudinal axis of the roller. hair removal.
  • a rotating roll is preferred because it is capable of treating large areas of skin while being of very compact construction.
  • the roller rotates about its longitudinal axis which is parallel to the plane of the skin, the clamps being arranged along its generator.
  • the axis of the first drive motor is therefore also arranged parallel to the plane of the skin.
  • the output axis of the second motor is perpendicular to the longitudinal median plane containing the longitudinal axis of the hair removal roller.
  • the arrangement of the second drive motor with its output axis transverse to this plane thus makes it possible to direct the air blown by the fan directly towards the roller, on either side of the rotary roller, or even on a longitudinal side. of this one.
  • the output axis of the second electric motor is substantially transverse to the longitudinal axis of the housing.
  • the rotational drive of a fan wheel about an axis perpendicular to the longitudinal axis of the housing makes it possible to record the diameter and the height of the vanes of the fan wheel in the jig in the transverse direction of the housing.
  • a wheel occupying the space granted by the width (for the diameter) and by the Thickness (for the height of the blades) makes it possible, while turning, to blow a large air flow and thus to improve the efficiency of the fan, without significantly increasing the dimensions of the housing of the apparatus.
  • said fan is a centrifugal fan squirrel cage.
  • a centrifugal fan called squirrel cage or direct acting is a centrifugal fan with blades facing forward in the direction of rotation. This type of fan, operating at low pressure, provides a high flow rate and total pressure, for a low power consumption.
  • the fan comprises a volute surrounding a paddle wheel, the output of the volute being extended by a longitudinal air duct.
  • Such a volute is an envelope that surrounds the fan wheel, it has a shape of snail or logarithmic spiral and allows to gradually increase, from its spout, the flow of the centrifugal fan and thus improve the efficiency of the fan. this one.
  • the air inlet in the volute of a centrifugal fan is made according to the axis of rotation of the wheel and the output is made according to the tangent to the wheel, perpendicular to the axis of the wheel, that the it can then be advantageously oriented in the direction of the longitudinal axis of the housing.
  • a ventilation duct also in the direction longitudinally of the housing and in the extension of the outlet of the volute, the outgoing air flow can then be directed substantially without changing direction and, therefore, without undergoing pressure loss to the rotary depilatory roller.
  • Such an arrangement is much more advantageous than that described in the apparatus of the patent application FR0607026 of the Applicant where, the air duct had a right angle elbow which generated significant pressure drops before opening into an outlet nozzle at the roller.
  • the air duct opens into a flat air outlet nozzle arranged parallel to the longitudinal side of the hair removal roller.
  • Such a flat air outlet nozzle being parallel to the axis of the roller and therefore to its generator, then allows to blow a flat air flow around the skin area treated or to be treated.
  • Such an outlet nozzle may then have a width substantially equal to that of the roller, which provides a very effective pain treatment of the entire treated area.
  • the flat nozzle is adjacent to the hair removal roller being arranged in front of it in the direction of movement of the device on the skin.
  • the air outlet nozzle is adjacent to the roller, it then allows to blow a flat airflow closer to the skin area to be treated.
  • This arrangement at the front of the roll has proved very effective against pain, because the analgesic effect of the airflow immediately before tearing insensitizes the skin and makes it less painful pulling.
  • the two electric motors are arranged one behind the other in the direction of the length of the housing, the first electric motor being located between the epilation roller and the second electric motor.
  • This provides a compact construction apparatus in the direction of the thickness of the apparatus, the motors being located one behind the other to occupy optimally the space in the longitudinal direction of a housing of elongated shape, housing that forms a gripping means. Furthermore, the first drive motor being located closer to the roller that it drives, this limits the number of gears or gears used to transmit the movement to the roller, to further reduce the operating noise.
  • the arrangement of the second motor at the rear of the housing also allows good ergonomics in operation, because the air inlet opening in the housing can not be obstructed by the hand of the user who usually holds the housing its upper part adjoining the roller in order to guide it accurately on the skin.
  • the air inlet opening, the front wall of the air duct and the air outlet flat nozzle belong to the front shell of the housing.
  • the outlet of the volute, the air duct and the outlet nozzle of the blown air are aligned and arranged along the longitudinal axis of the housing of the apparatus.
  • the front shell of the housing By using the front shell of the housing to at least partially materialize these aligned components, one can then obtain a very compact construction of the device, while allowing to simplify its construction and assembly.
  • the front shell hides these components or supports them at least in part.
  • the hair removal roller is supported by a portion forming the head of the casing pivotally mounted relative to a second portion forming the handle.
  • the air outlet nozzle may be secured to the housing or the head and in this case, it will be connected to the housing by a flexible bellows .
  • the hair removal roller is removably mounted relative to the housing.
  • Such an epilation accessory can be a skin scrubbing device, a trimmer head to shorten the hair before tearing or a shaving head.
  • the depilatory apparatus shown in the figures comprises a housing 1 and a tweezers head 2.
  • the depilatory head 2 comprises a hair removal roller 3 ( fig.3 and 4 ) which comprises a plurality of tearing tongs arranged on its periphery and is rotated about its longitudinal axis X-X ', parallel to the skin during the epilation operation.
  • the apparatus generally includes an on / off button which may be located at the top of the front face of the housing 1.
  • the apparatus shown in the figures comprises a housing 1 made in two parts, an upper shell and a lower shell 4, the first being removed on the Figures 1 and 2 .
  • the housing 1 encloses a first electric motor 10 whose output axis 12 is parallel to the axis XX 'of the roller supported by the tweezer head 2.
  • the first electric motor 10 drives a gear train 11 transmitting the rotational movement of the shaft 12 to the hair removal roller 3 ( Fig. 3 and 4 ) using pinions and gears axes parallel to each other and parallel to the output axis 12 (for example using one or two intermediate stages of parallel gears).
  • the first electric motor 10 and the gear train 11 are supported by a frame 16 mounted within the housing 1 by means of elastic stops 17.
  • the depilatory head 2 is removably mounted relative to the housing 1 and a transmission wheel (not visible in the drawings) of the latter. More particularly, a support 18 is made on the upper part of the frame 16 and is intended to removably receive the epilator head 2. For this, the epilator head 2 and the support 18 are provided with locking means to the help from which they are attached to each other and are then separated from each other. Thus, the depilatory head can be provided with tenons automatically engaging with lock tabs of the housing.
  • An unlocking button (not shown in the drawings) is provided on one side of the housing 1 by means of which the posts of the depilatory head are released and the latter can be removed from the housing 1.
  • the depilatory head 2 is mounted on a support which is itself pivoted under the force of a return spring around a horizontal pivot axis parallel to the longitudinal axis of the hair removal roller. 3, when moving the device on the skin.
  • the tweezer head 2 has two side covers 6, 7, laterally sandwiching the depilating roller 3.
  • the depilating roller 3 comprises several tear-off modules carried by a peripheral cage concentric with the longitudinal axis of the roll and driven in rotation by a drive pinion receiving the movement of the first drive motor 10, via the gear train 11.
  • a pickup module comprises a plurality of picking pliers, each clamp being formed of a movable blade 8 and a fixed blade 9 adjacent.
  • the base of a movable blade 8 follows the groove of an inner cam and applies and moves away successively from an adjacent fixed blade 9 during its driving in rotation about the axis
  • the pliers of the removal modules are angularly offset on the periphery of the epilation roller 3.
  • the first electric motor 10 When the first electric motor 10 is energized, it rotates the epilation roller 3 whose pliers close and open successively and tear off the hairs of the area to be treated in front of the depilatory head.
  • a rotary cylinder is better described in the patent application FR 2,858,528 in the name of the applicant and is an embodiment of the depilatory device according to the invention.
  • the apparatus comprises painter means comprising a fan 20 actuated by a second electric motor 14 of output axis 15 angularly offset relative to the output axis 12 of the first electric motor 10.
  • the second electric motor 14 is arranged so that its output axis 15 is transverse to the longitudinal axis of the housing 1.
  • the fan 20 comprises a bladed wheel 21 mounted on the output shaft shaft 15 of the second electric motor 14 and thus rotating at the same speed as this one, preferably greater than 5000tr / min.
  • the fan 20 draws ambient air from an inlet opening 22 of the housing 1 and sends it towards the skin through an outlet opening 32 embodied by a flat nozzle 24. ( Fig. 3 and 4 ).
  • the air blown by the fan 20 is recovered at the outlet of its volute 25 by an air duct 26 which directs it to the outlet of the housing 1 via the flat nozzle 24 which is oriented towards the skin.
  • the flat nozzle 24 is adjacent to the hair removal roller 3, its length corresponds to that of the hair removal roller 3 and it is arranged in front of the latter in the direction of movement of the device on the skin.
  • the flat nozzle 24 of air outlet protrudes outside the housing 1 to get closer to the skin. This makes it possible to send a stream of concentrated and flattened air, forming a blade or a curtain of air blown in front of the roller during hair removal to numb the skin before tearing and to make the resulting tearing action bearable.
  • the outlet flat nozzle 24 shown has a generally rectangular shape with rounded corners, with a length of approximately 28 mm and a width of approximately 5 mm.
  • the fan 20 is of the squirrel-cage centrifugal type or has blades curved forwards in the direction of rotation, in particular along the arcuate arrow of the figure 3 .
  • the fan 20 comprises the paddle wheel 21 surrounded by a snail-shaped volute 25 or a logarithmic spiral.
  • the ventilator 20 of the invention must fulfill conditions of good aerodynamic efficiency (flow rate, speed of airflow), low operating noise and compactness of the air. its construction. After calculations and tests carried out in the laboratory, the design and the optimum characteristics of the fan 20 have been determined.
  • the wheel 21 has a diameter of about 26 mm with twenty blades 27 lying forwardly, the height of a blade 27 being about 10 mm and the blade spacing of about 3 mm.
  • the volute 25 has a snail shape and ensures the gradual increase of the fan flow from its spout 28 to the outlet channel 29 of the volute.
  • the outlet channel 29 of the volute 25 opens into an air duct 26.
  • the air duct 26 is parallel to the longitudinal axis of the casing 1 and perpendicular to the axis of rotation of the wheel 21 and therefore to the axis of output 15 of the second motor 14.
  • the air duct 26 is preferably a rectilinear conduit which sends in the longitudinal direction the tangential air flow leaving the volute 25, according to the longitudinal arrow of the fig.3 .
  • the radius of curvature 30 of the volute spout 25 is extended by a lateral side wall of the air duct 26 and allows the tangential air flow leaving the volute 25 to spread progressively in the air duct 26 and out, without losses charge, by the entire width of the flat nozzle 24 air outlet.
  • the walls of the duct must be smooth, free of walking or sharp edge, the inner surface of the air duct 26 is polished ice at a very low roughness .
  • the upper part of the volute 25, the upper wall of the air duct 26, forming a front wall 31, and the upper wall of the flat nozzle 24 are integrated into the housing, in particular to its front shell.
  • This front shell then has a mesh opening at the inlet opening 22 and having substantially the same shape and the same dimensions as the latter.
  • the device is switched on by pressing the on / off button. More particularly, it feeds the first electric motor 10 which rotates the epilation roller 3 and simultaneously the second electric motor 14 which rotates the fan 20.
  • the fan 20 When the fan 20 is rotated, it creates a flow of air between the air inlet opening 22 and the flat air outlet nozzle 24 of the apparatus.
  • the air flow circuit is better represented by the arrows of the figure 3 , the aspiration of the air flow being perpendicular to the housing 1, the air flow then moving in the longitudinal direction of the housing 1 to the hair removal roller 3, the outlet being on the same side of the housing.
  • the apparatus of the invention already makes it possible to produce a stream of concentrated air, in the form of a blade or air curtain, oriented in the direction of the skin and having a good flow rate, of about 3.8 m 3 / h which is obtained with a rotation speed of only 5000rpm, to generate a soothing effect during tearing. Moreover, it has been found that, with this apparatus of the invention, by doubling the speed of rotation of the fan, an air flow rate of approximately 8 m 3 / h is obtained, which clearly demonstrates the effectiveness of this construction and the choice of operating parameters of the device.
  • This device allows to blow a very powerful air flow at high speed towards the skin, while maintaining good ergonomics and without to excessively increase its size.
  • the painter means of the device are thus effective in operation while integrating well with a depilatory device of compact construction. Furthermore, by simplifying the transmission, the entire construction, as well as the assembly of the device are more economical, which makes it possible to compensate for any additional cost due to the presence of an additional engine.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pain & Pain Management (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Surgical Instruments (AREA)
  • External Artificial Organs (AREA)
  • Ventilation (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

Epilator comprising a casing intended to be held in the hand, comprising means of epilation by pulling the hairs out of the skin and means of driving the means of epilation comprising a first electric motor (10), and a blower (20) driven by a second electric motor (14) to create an airflow between an inlet opening (22) of the casing and an outlet opening (32) of the casing. According to the invention, the output shaft of the second electric motor (14) is angularly offset with respect to the output shaft of the first electric motor (10).

Description

La présente invention est relative à un appareil à épiler du type comportant des pinces destinées à arracher les poils superflus, non désirés, du corps humain, et elle concerne plus particulièrement un tel appareil équipé de moyens pour réduire la douleur provoquée par l'arrachage des poils.The present invention relates to a tweezers of the type comprising pliers for tearing unwanted hair, unwanted, the human body, and more particularly relates to such an apparatus equipped with means for reducing the pain caused by tearing of the bristles. fur.

Ce type d'appareil comporte généralement des pinces sous forme de lames ou de disques disposés sur un rouleau rotatif ou oscillant, agencé dans la partie supérieure d'un boîtier formant moyen de préhension, le rouleau étant entraîné en mouvement par un moteur électrique agencé dans le même boîtier. Les pinces sont amenées à se fermer et s'ouvrir périodiquement de manière à saisir les poils à proximité de la peau, les arracher, puis les évacuer, lors du mouvement du rouleau. L'épilation par arrachage des poils s'avère une méthode très efficace contre leur repousse, mais elle s'avère parfois assez douloureuse. Cette douleur est due aux tractions répétées exercées sur les poils, ou aux lésions ou irritations des follicules pileux provoquées par l'arrachage des poils.This type of apparatus generally comprises blade or disk-shaped grippers arranged on a rotating or oscillating roller, arranged in the upper part of a housing forming a gripping means, the roller being driven in motion by an electric motor arranged in a the same case. The forceps are caused to close and open periodically so as to grasp the hair close to the skin, tear them off, and then evacuate them, during the movement of the roller. Hair removal by pulling hair is a very effective method against their regrowth, but it is sometimes quite painful. This pain is due to the repeated pulling on the hair, or to the lesions or irritations of the hair follicles caused by the pulling of the hairs.

Une solution efficace pour réduire la douleur lors de l'arrachage a été proposée dans le document EP 0 668 734 au nom de la demanderesse décrivant un appareil d'épilation par arrachage des poils comprenant des moyens pour distribuer un liquide sur la zone de peau avant l'arrachage et une soufflerie pour sécher cette zone. Cet appareil réalise ainsi une évaporation forcée du fluide étalé sur la peau ayant pour effet une insensibilisation par abaissement de la température de la zone de peau à épiler. Fonctionnant à satisfaction, cet appareil est toutefois d'une autonomie limitée, celle-ci étant déterminée par la capacité du réservoir. De plus, il a été constaté que l'air diffus envoyé par la soufflerie ne pouvait pas assurer, à lui tout seul, l'effet souhaité de refroidissement de la peau. De ce fait, l'appareil doit être chargé en liquide constamment et, par conséquent, il nécessite un entretien régulier, voire même un démontage de certains composants. Par ailleurs, cet appareil s'avère d'un encombrement important, dû principalement à la présence d'un réservoir de fluide à l'intérieur de son boîtier.An effective solution for reducing pain during tearing has been proposed in the document EP 0 668 734 in the name of the applicant describing a hair removal hair removal apparatus comprising means for dispensing a liquid to the skin area before tearing and a blower to dry this area. This apparatus thus performs a forced evaporation of the fluid spread on the skin having the effect of insensitization by lowering the temperature of the area of the skin to be depilated. Operating to satisfaction, this device is however of limited autonomy, it is determined by the capacity of the tank. In addition, it was found that the diffused air sent by the blower could not ensure, by itself, the desired effect of cooling the skin. Therefore, the device must be loaded with liquid constantly and, therefore, it requires regular maintenance, or even disassembly of some components. Moreover, this device is of a large size, mainly due to the presence of a fluid reservoir inside its housing.

Pour remédier à ce problème, une solution a été apportée par l'appareil décrit dans le document EP-A-1884174 de la demanderesse, appareil comportant des moyens pour produire un flux d'air envoyé sur la peau par une buse plate adjacente au rouleau d'épilation. Fonctionnant à satisfaction, sans toutefois faire appel à des moyens d'humidification de la peau, cet appareil s'avère assez bruyant en fonctionnement. Une analyse de l'appareil a permis de constater que le bruit était dû principalement aux multiples jeux d'engrenages utilisés dans la transmission du mouvement depuis son moteur d'entraînement.To remedy this problem, a solution has been provided by the apparatus described in the document EP-A-1884174 of the applicant, apparatus comprising means for producing a flow of air to the skin via a flat nozzle adjacent to the hair removal roller. Functioning to satisfaction, without resorting to means of moistening the skin, this device is quite noisy in operation. An analysis of the device found that the noise was due mainly to the multiple sets of gears used in the transmission of the movement from its drive motor.

Le but de la présente invention est de remédier aux inconvénients précités et de proposer un appareil à épiler à pinces d'arrachage comportant des moyens antidouleur aptes à produire un flux d'air destiné à insensibiliser la zone de peau à épiler de manière efficace durant l'opération d'épilation, tout en étant silencieux en fonctionnement.The object of the present invention is to overcome the aforementioned drawbacks and to provide a tweezers device with tearing pliers comprising painter means capable of producing a flow of air for insensitizing the area of skin to be epilated effectively during l hair removal operation, while being silent in operation.

Un autre but de l'invention est de fournir un appareil à épiler comportant des moyens antidouleur aptes à produire un flux d'air de rendement aéraulique amélioré, qui soient de structure simple et fiables, tout en étant économiques à réaliser.Another object of the invention is to provide a depilatory device comprising painter means capable of producing an air flow with improved airflow efficiency, which are simple in structure and reliable, while being economical to achieve.

Un autre but de l'invention est de proposer un appareil à épiler de construction compacte, de faibles dimensions, pouvant facilement être tenu à la main, tout en intégrant des moyens antidouleur efficaces et fiables dans le temps.Another object of the invention is to provide a depilatory apparatus of compact construction, of small dimensions, which can easily be held by hand, while incorporating effective and reliable pain relief means over time.

Ces buts sont atteints avec un appareil à épiler comportant un boîtier destiné à être tenu à la main comprenant des moyens d'épilation par arrachage des poils sur la peau et des moyens d'entraînement des moyens d'épilation comprenant un premier moteur électrique, ainsi qu'un ventilateur entraîné par un deuxième moteur électrique pour créer un flux d'air entre une ouverture d'entrée du boîtier et une ouverture de sortie du boîtier, du fait que l'axe de sortie du deuxième moteur électrique est décalé angulairement par rapport à l'axe de sortie du premier moteur électrique.These objects are achieved with a depilatory apparatus comprising a housing intended to be hand-held comprising hair removal means for tearing the hair on the skin and means for driving the hair removal means comprising a first electric motor, and a fan driven by a second electric motor to create an air flow between an inlet opening of the housing and an outlet opening of the housing, because the output shaft of the second electric motor is angularly offset relative to to the output axis of the first electric motor.

L'appareil à épiler comporte, à l'intérieur d'un boîtier tenu à la main, des moyens d'épilation entraînés par un premier moteur électrique pour actionner au moins une pince d'arrachage en un mouvement cyclique de fermeture, de déplacement relatif par rapport à la peau en vue de l'arrachage des poils se trouvant à l'intérieur de la pince fermée, ainsi que d'ouverture pour recommencer un nouveau cycle d'épilation. Le boîtier de l'appareil contient également un ventilateur mis en mouvement par un deuxième moteur électrique, ce ventilateur étant prévu pour créer un flux d'air entre une entrée d'air dans le boîtier et une sortie d'air du boîtier.The epilator comprises, within a hand-held housing, depilatory means driven by a first electric motor for actuating at least one pulling pliers in a cyclic movement of closing, relative movement relative to the skin for the tearing of the hairs inside the closed clamp, and opening to start a new epilation cycle. The housing of the apparatus also contains a fan set in motion by a second electric motor, which fan is provided to create a flow of air between an air inlet in the housing and an air outlet of the housing.

Selon l'invention, on associe deux moteurs d'entraînement dans un même boîtier d'un appareil à épiler où, de par l'agencement du deuxième moteur orienté avec son axe de sortie incliné, faisant donc un angle différent de zéro avec l'axe du premier moteur d'entraînement de la tête d'épilation, on arrive à éviter l'utilisation d'un renvoi d'angle, source importante de bruit, dans les engrenages de transmission du mouvement à la tête d'épilation. Ceci permet donc de fournir un entraînement direct au ventilateur et également d'agencer le moteur de la tête à épiler de manière à ce que celle-ci puisse être entraînée avec des engrenages parallèles.According to the invention, two drive motors are associated in the same housing of a tweezer where, by means of the arrangement of the second motor oriented with its inclined output axis, thus making an angle other than zero with the axis of the first drive motor of the epilation head, one manages to avoid the use of a bevel gear, significant source of noise, in the transmission gears of the movement to the epilating head. This therefore makes it possible to provide a direct drive to the fan and also to arrange the motor of the depilatory head so that it can be driven with parallel gears.

On peut ainsi choisir un premier moteur d'entraînement de la tête d'épilation (vitesse faible, couple important) et un deuxième moteur d'entraînement pour le ventilateur ayant des caractéristiques différentes de celles du premier (grande vitesse et faible couple), moteur qui, de ce fait, peut être assez compact et présenter un faible encombrement.It is thus possible to choose a first drive motor for the epilation head (low speed, high torque) and a second drive motor for the fan having characteristics different from those of the first (high speed and low torque), motor which, therefore, can be quite compact and have a small footprint.

Par ailleurs, l'entraînement direct du ventilateur par un moteur fonctionnant à grande vitesse lui permet de fournir un débit d'air puissant, le débit du flux d'air soufflé étant directement proportionnel à la vitesse de rotation de sa roue. Ceci, combiné avec l'entraînement par des engrenages parallèles de la tête d'épilation, permet d'obtenir un appareil produisant un flux d'air à effet antalgique efficace et silencieux, de surcroît, conséquence de la suppression du renvoi à 90° dans la transmission, tel que c'était le cas dans l'appareil de la demande de brevet FR0607026 de la demanderesse.Moreover, the direct drive of the fan by a motor operating at high speed allows it to provide a powerful air flow, the flow rate of the blown air flow being directly proportional to the speed of rotation of its wheel. This, combined with the drive by parallel gears of the depilating head, provides an apparatus producing a flow of air with analgesic effect effective and silent, moreover, a consequence of the removal of the referral to 90 ° in the transmission, as was the case in the apparatus of the patent application FR0607026 of the plaintiff.

II a également été constaté que l'actionnement par un moteur séparé de la roue du ventilateur, permettait d'avoir plus de liberté dans son agencement à l'intérieur du boîtier, ainsi que dans le choix de ses dimensions. Ainsi, la roue du ventilateur, dont les dimensions ont été calculées pour obtenir un flux d'air puissant nécessaire pour obtenir l'effet antidouleur recherché, pourrait être agencée de manière optimum quant à la direction du flux d'air sortant, tout en l'orientant pour obtenir un faible encombrement et un design avantageux de l'appareil.It has also been found that actuation by a separate motor of the fan wheel, allowed to have more freedom in its arrangement inside the housing, as well as in the choice of its dimensions. Thus, the fan wheel, whose dimensions have been calculated to obtain a powerful airflow necessary to obtain the desired painkiller effect, could be arranged in an optimum manner as to the direction of the outgoing airflow, while the orienting to obtain a small footprint and an advantageous design of the apparatus.

Avantageusement, les moyens d'épilation comprennent au moins une pince d'arrachage portée par un rouleau d'épilation tournant autour de son axe longitudinal et l'axe de sortie du deuxième moteur électrique est sensiblement transversal à l'axe longitudinal du rouleau d'épilation.Advantageously, the depilating means comprise at least one tear-off pliers carried by an epilation roller rotating about its longitudinal axis and the output shaft of the second electric motor is substantially transverse to the longitudinal axis of the roller. hair removal.

D'autres moyens d'épilation à pinces d'arrachage auraient pu être envisagés, notamment sous forme d'une tête d'épilation portant des pinces entraînées en translation, ou de tête d'épilation comportant des pinces disposées sur la face frontale d'un disque rotatif, ou portées par une chaîne, etc. On préfère un rouleau rotatif, car il est apte à traiter des surfaces importantes de peau, tout en étant de construction très compacte. Lors de son déplacement sur la peau, le rouleau tourne autour de son axe longitudinal qui est parallèle au plan de la peau, les pinces étant disposées le long de sa génératrice. L'axe du premier moteur d'entraînement est donc également agencé parallèlement au plan de la peau.Other means of hair removal with tear-off pliers could have been envisaged, in particular in the form of an epilation head carrying tongs driven in translation, or an epilation head comprising tongs arranged on the front face of a rotating disk, or carried by a chain, etc. A rotating roll is preferred because it is capable of treating large areas of skin while being of very compact construction. During its movement on the skin, the roller rotates about its longitudinal axis which is parallel to the plane of the skin, the clamps being arranged along its generator. The axis of the first drive motor is therefore also arranged parallel to the plane of the skin.

Les deux axes étant situés à distance, pour plus de clarté, on peut considérer que l'axe de sortie du deuxième moteur est perpendiculaire au plan médian longitudinal contenant l'axe longitudinal du rouleau d'épilation. L'agencement du deuxième moteur d'entraînement avec son axe de sortie transversal à ce plan permet donc de diriger l'air soufflé par le ventilateur directement en direction du rouleau, de part et d'autre du rouleau rotatif, voire sur un côté longitudinal de celui-ci.The two axes being located at a distance, for greater clarity, it may be considered that the output axis of the second motor is perpendicular to the longitudinal median plane containing the longitudinal axis of the hair removal roller. The arrangement of the second drive motor with its output axis transverse to this plane thus makes it possible to direct the air blown by the fan directly towards the roller, on either side of the rotary roller, or even on a longitudinal side. of this one.

De préférence, l'axe de sortie du deuxième moteur électrique est sensiblement transversal à l'axe longitudinal du boîtier.Preferably, the output axis of the second electric motor is substantially transverse to the longitudinal axis of the housing.

L'entraînement en rotation d'une roue de ventilateur autour d'un axe perpendiculaire à l'axe longitudinal du boîtier permet d'inscrire le diamètre et la hauteur des aubes de la roue du ventilateur dans le gabarit en direction transversale du boîtier. Ainsi, sachant que le débit soufflé par la roue est proportionnel au carré de son diamètre et qu'il est également proportionnel à la hauteur de ses aubes, une roue occupant l'espace octroyé par la largeur (pour le diamètre) et par l'épaisseur (pour la hauteur des aubes) permet, en tournant, de souffler un débit d'air important et d'améliorer ainsi le rendement du ventilateur, sans augmenter de manière significative les dimensions du boîtier de l'appareil.The rotational drive of a fan wheel about an axis perpendicular to the longitudinal axis of the housing makes it possible to record the diameter and the height of the vanes of the fan wheel in the jig in the transverse direction of the housing. Thus, knowing that the flow blown by the wheel is proportional to the square of its diameter and that it is also proportional to the height of its blades, a wheel occupying the space granted by the width (for the diameter) and by the Thickness (for the height of the blades) makes it possible, while turning, to blow a large air flow and thus to improve the efficiency of the fan, without significantly increasing the dimensions of the housing of the apparatus.

Avantageusement, ledit ventilateur est un ventilateur centrifuge à cage d'écureuil.Advantageously, said fan is a centrifugal fan squirrel cage.

Un ventilateur centrifuge dit à cage d'écureuil ou à action directe est un ventilateur centrifuge à pales couchées vers l'avant dans le sens de la rotation. Ce type de ventilateur, fonctionnant à faible pression, fournit un débit et une pression totale élevés, pour une faible puissance consommée.A centrifugal fan called squirrel cage or direct acting is a centrifugal fan with blades facing forward in the direction of rotation. This type of fan, operating at low pressure, provides a high flow rate and total pressure, for a low power consumption.

De préférence, le ventilateur comporte une volute entourant une roue à aubes, la sortie de la volute étant prolongée par un conduit aéraulique longitudinal.Preferably, the fan comprises a volute surrounding a paddle wheel, the output of the volute being extended by a longitudinal air duct.

Une telle volute est une enveloppe qui entoure la roue du ventilateur, elle a une forme d'escargot ou de spirale logarithmique et permet d'augmenter progressivement, à partir de son bec, le débit du ventilateur centrifuge et d'améliorer ainsi le rendement de celui-ci. L'entrée d'air dans la volute d'un ventilateur centrifuge se fait selon l'axe de rotation de la roue et la sortie se fait selon la tangente à la roue, perpendiculaire donc à l'axe de la roue, que l'on peut alors orienter avantageusement selon la direction de l'axe longitudinal du boîtier. En agençant ensuite un conduit aéraulique également dans la direction longitudinale du boîtier et dans le prolongement de la sortie de la volute, le flux d'air sortant peut alors être dirigé pratiquement sans changement de direction et, donc, sans subir de perte de charge jusqu'au rouleau rotatif d'épilation. Un tel agencement est beaucoup plus avantageux que celui décrit dans l'appareil de la demande de brevet FR0607026 de la demanderesse où, le conduit aéraulique présentait un coude à angle droit qui générait des pertes de charge importantes avant de déboucher dans une buse de sortie au niveau du rouleau.Such a volute is an envelope that surrounds the fan wheel, it has a shape of snail or logarithmic spiral and allows to gradually increase, from its spout, the flow of the centrifugal fan and thus improve the efficiency of the fan. this one. The air inlet in the volute of a centrifugal fan is made according to the axis of rotation of the wheel and the output is made according to the tangent to the wheel, perpendicular to the axis of the wheel, that the it can then be advantageously oriented in the direction of the longitudinal axis of the housing. By arranging then a ventilation duct also in the direction longitudinally of the housing and in the extension of the outlet of the volute, the outgoing air flow can then be directed substantially without changing direction and, therefore, without undergoing pressure loss to the rotary depilatory roller. Such an arrangement is much more advantageous than that described in the apparatus of the patent application FR0607026 of the Applicant where, the air duct had a right angle elbow which generated significant pressure drops before opening into an outlet nozzle at the roller.

Avantageusement, le conduit aéraulique débouche dans une buse plate de sortie d'air agencée parallèlement au côté longitudinal du rouleau d'épilation.Advantageously, the air duct opens into a flat air outlet nozzle arranged parallel to the longitudinal side of the hair removal roller.

Une telle buse plate de sortie d'air étant parallèle à l'axe du rouleau et donc à sa génératrice, permet alors de souffler un flux d'air plat aux environs de la zone de peau traitée ou à traiter. Une telle buse de sortie peut alors présenter une largeur sensiblement égale à celle du rouleau, ce qui assure un traitement antidouleur très efficace de toute la zone traitée.Such a flat air outlet nozzle being parallel to the axis of the roller and therefore to its generator, then allows to blow a flat air flow around the skin area treated or to be treated. Such an outlet nozzle may then have a width substantially equal to that of the roller, which provides a very effective pain treatment of the entire treated area.

De préférence, la buse plate est adjacente au rouleau d'épilation en étant agencée devant celui-ci dans le sens de déplacement de l'appareil sur la peau.Preferably, the flat nozzle is adjacent to the hair removal roller being arranged in front of it in the direction of movement of the device on the skin.

La buse de sortie d'air étant adjacente au rouleau, elle permet alors de souffler un flux d'air plat au plus près de la zone de peau à traiter. Cet agencement à l'avant du rouleau s'est révélé très efficace contre la douleur, car l'effet analgésique du flux d'air immédiatement avant l'arrachage insensibilise la peau et rend moins douloureux l'arrachage.The air outlet nozzle is adjacent to the roller, it then allows to blow a flat airflow closer to the skin area to be treated. This arrangement at the front of the roll has proved very effective against pain, because the analgesic effect of the airflow immediately before tearing insensitizes the skin and makes it less painful pulling.

Avantageusement, les deux moteurs électriques sont agencés l'un derrière l'autre dans le sens de la longueur du boîtier, le premier moteur électrique étant situé entre le rouleau d'épilation et le deuxième moteur électrique.Advantageously, the two electric motors are arranged one behind the other in the direction of the length of the housing, the first electric motor being located between the epilation roller and the second electric motor.

Ceci permet d'obtenir un appareil de construction compacte dans le sens de l'épaisseur de l'appareil, les moteurs étant situés l'un derrière l'autre pour occuper de manière optimale l'espace dans le sens longitudinal d'un boîtier de forme allongée, boîtier qui forme un moyen de préhension. Par ailleurs, le premier moteur d'entraînement étant situé au plus près du rouleau qu'il entraîne, ceci limite le nombre de pignons ou roues dentées utilisés pour transmettre le mouvement au rouleau, pour réduire encore plus le bruit de fonctionnement. L'agencement du deuxième moteur à l'arrière du boîtier permet par ailleurs une bonne ergonomie en fonctionnement, car l'ouverture d'entrée d'air dans le boîtier ne peut être obstruée par la main de l'utilisatrice qui tient habituellement le boîtier par sa partie supérieure avoisinant le rouleau afin de pouvoir le guider avec précision sur la peau.This provides a compact construction apparatus in the direction of the thickness of the apparatus, the motors being located one behind the other to occupy optimally the space in the longitudinal direction of a housing of elongated shape, housing that forms a gripping means. Furthermore, the first drive motor being located closer to the roller that it drives, this limits the number of gears or gears used to transmit the movement to the roller, to further reduce the operating noise. The arrangement of the second motor at the rear of the housing also allows good ergonomics in operation, because the air inlet opening in the housing can not be obstructed by the hand of the user who usually holds the housing its upper part adjoining the roller in order to guide it accurately on the skin.

De préférence, l'ouverture d'entrée d'air, la paroi avant du conduit aéraulique et la buse plate de sortie d'air appartiennent à la coque avant du boîtier.Preferably, the air inlet opening, the front wall of the air duct and the air outlet flat nozzle belong to the front shell of the housing.

Selon un aspect non négligeable de l'invention, la sortie de la volute, le conduit aéraulique et la buse de sortie de l'air soufflé sont alignés et agencés selon l'axe longitudinal du boîtier de l'appareil. En utilisant la coque avant du boîtier pour matérialiser au moins en partie ces composants alignés, on peut alors obtenir une construction très compacte de l'appareil, tout en permettant de simplifier sa construction et son assemblage. Dans une variante, la coque avant cache ces composants ou les supporte au moins en partie.According to a non-negligible aspect of the invention, the outlet of the volute, the air duct and the outlet nozzle of the blown air are aligned and arranged along the longitudinal axis of the housing of the apparatus. By using the front shell of the housing to at least partially materialize these aligned components, one can then obtain a very compact construction of the device, while allowing to simplify its construction and assembly. In a variant, the front shell hides these components or supports them at least in part.

Avantageusement, le rouleau d'épilation est supporté par une partie formant la tête du boîtier montée pivotante par rapport à une deuxième partie formant la poignée de préhension.Advantageously, the hair removal roller is supported by a portion forming the head of the casing pivotally mounted relative to a second portion forming the handle.

Ceci permet à la tête d'épilation de mieux s'adapter au contour de la peau, la buse de sortie d'air pouvant être soit solidaire du boîtier soit de la tête et dans ce cas, elle sera raccordée au boîtier par un soufflet souple.This allows the epilation head to better adapt to the contour of the skin, the air outlet nozzle may be secured to the housing or the head and in this case, it will be connected to the housing by a flexible bellows .

De préférence, le rouleau d'épilation est monté amovible par rapport au boîtier.Preferably, the hair removal roller is removably mounted relative to the housing.

Ceci permet son démontage en vue du nettoyage ou du remplacement par un autre rouleau comportant un nombre différent de pinces, voire par un accessoire d'épilation. Un tel accessoire d'épilation peut être un dispositif de gommage de la peau, une tête de tondeuse pour raccourcir les poils avant l'arrachage ou une tête de rasage.This allows its disassembly for cleaning or replacement with another roller having a different number of clamps, or by a hair removal accessory. Such an epilation accessory can be a skin scrubbing device, a trimmer head to shorten the hair before tearing or a shaving head.

L'invention sera mieux comprise à l'étude des modes de réalisation pris à titre d'exemples non limitatifs et illustrés dans les figures annexées dans lesquelles :

  • la figure 1 est une vue frontale d'un appareil à épiler selon un premier mode de réalisation de l'invention, l'appareil étant représenté en position verticale et sans la coque avant du boîtier qui a été enlevée pour plus de clarté ;
  • la figure 2 est une vue en perspective de l'appareil de la figure 1, sans la coque avant ;
  • la figure 3 est une vue en perspective d'un appareil à épiler selon un deuxième mode de réalisation de l'invention, les coques du boîtier n'étant pas représentées pour laisser visibles les composants internes de l'appareil ;
  • la figure 4 est une vue en perspective de l'appareil de la figure 3 pivoté de 180° et où le conduit aéraulique et la volute sont représentés en coupe pour rendre plus claire leur construction.
The invention will be better understood by studying the embodiments taken as non-limiting examples and illustrated in the appended figures in which:
  • the figure 1 is a front view of a depilatory device according to a first embodiment of the invention, the apparatus being shown in a vertical position and without the front shell of the housing which has been removed for clarity;
  • the figure 2 is a perspective view of the device from the figure 1 , without the front hull;
  • the figure 3 is a perspective view of a depilatory device according to a second embodiment of the invention, the case shells not being shown to leave visible the internal components of the apparatus;
  • the figure 4 is a perspective view of the device from the figure 3 rotated 180 ° and where the aeraulic duct and the volute are shown in section to make their construction clearer.

L'appareil à épiler représenté aux figures comprend un boîtier 1 et une tête à épiler 2. La tête à épiler 2 comprend un rouleau d'épilation 3 (fig.3 et 4) qui comporte plusieurs pinces d'arrachage agencées sur sa périphérie et est entraîné en rotation autour de son axe longitudinal X-X', parallèlement à la peau lors de l'opération de l'épilation. L'appareil comporte généralement un bouton marche/arrêt qui peut être situé en la partie supérieure de la face avant du boîtier 1.The depilatory apparatus shown in the figures comprises a housing 1 and a tweezers head 2. The depilatory head 2 comprises a hair removal roller 3 ( fig.3 and 4 ) which comprises a plurality of tearing tongs arranged on its periphery and is rotated about its longitudinal axis X-X ', parallel to the skin during the epilation operation. The apparatus generally includes an on / off button which may be located at the top of the front face of the housing 1.

L'appareil représenté aux figures comprend un boîtier 1 réalisé en deux parties, une coque supérieure et une coque inférieure 4, la première étant enlevée sur les figures 1 et 2. Le boîtier 1 renferme un premier moteur électrique 10 dont l'axe de sortie 12 est parallèle à l'axe X-X' du rouleau supporté par la tête à épiler 2. Le premier moteur électrique 10 entraîne un train d'engrenages 11 transmettant le mouvement de rotation de l'axe 12 au rouleau d'épilation 3 (fig. 3 et 4) en utilisant des pignons et des roues dentées à axes parallèles entre eux et parallèles à l'axe de sortie 12 (par exemple en utilisant un ou deux étages intermédiaires d'engrenages parallèles). Le premier moteur électrique 10 et le train d'engrenages 11 sont supportés par un châssis 16 monté au sein du boîtier 1 moyennant des butées élastiques 17.The apparatus shown in the figures comprises a housing 1 made in two parts, an upper shell and a lower shell 4, the first being removed on the Figures 1 and 2 . The housing 1 encloses a first electric motor 10 whose output axis 12 is parallel to the axis XX 'of the roller supported by the tweezer head 2. The first electric motor 10 drives a gear train 11 transmitting the rotational movement of the shaft 12 to the hair removal roller 3 ( Fig. 3 and 4 ) using pinions and gears axes parallel to each other and parallel to the output axis 12 (for example using one or two intermediate stages of parallel gears). The first electric motor 10 and the gear train 11 are supported by a frame 16 mounted within the housing 1 by means of elastic stops 17.

La tête à épiler 2 est montée de manière amovible par rapport au boîtier 1 et à une roue de transmission (non visible sur les dessins) de ce dernier. Plus particulièrement, un support 18 est réalisé sur la partie supérieure du châssis 16 et est destiné à recevoir de manière amovible la tête à épiler 2. Pour ceci, la tête à épiler 2 et le support 18 sont munis de moyens de verrouillage à l'aide desquels ils sont fixés l'un à l'autre et sont ensuite désolidarisés l'un par rapport à l'autre. Ainsi, la tête à épiler peut être munie de tenons venant automatiquement en prise avec des languettes de verrouillage du boîtier. Un bouton de déverrouillage (non représenté sur les dessins) est prévu sur un côté du boîtier 1 à l'aide duquel les tenons de la tête à épiler sont libérés et cette dernière peut être retirée du boîtier 1. Dans l'appareil représenté aux figures 1 et 2, la tête à épiler 2 est montée sur un support qui est, lui, amené à pivoter, sous la force d'un ressort de rappel, autour d'un axe de pivotement horizontal, parallèle à l'axe longitudinal du rouleau d'épilation 3, lors du déplacement de l'appareil sur la peau.The depilatory head 2 is removably mounted relative to the housing 1 and a transmission wheel (not visible in the drawings) of the latter. More particularly, a support 18 is made on the upper part of the frame 16 and is intended to removably receive the epilator head 2. For this, the epilator head 2 and the support 18 are provided with locking means to the help from which they are attached to each other and are then separated from each other. Thus, the depilatory head can be provided with tenons automatically engaging with lock tabs of the housing. An unlocking button (not shown in the drawings) is provided on one side of the housing 1 by means of which the posts of the depilatory head are released and the latter can be removed from the housing 1. In the apparatus shown in FIGS. Figures 1 and 2 , the depilatory head 2 is mounted on a support which is itself pivoted under the force of a return spring around a horizontal pivot axis parallel to the longitudinal axis of the hair removal roller. 3, when moving the device on the skin.

La tête à épiler 2 comporte deux caches latéraux 6,7 venant prendre en sandwich latéralement le rouleau d'épilation 3. Le rouleau d'épilation 3 comprend plusieurs modules d'arrachage portés par une cage périphérique concentrique à l'axe longitudinal du rouleau et entraînée en rotation par un pignon d'entraînement recevant le mouvement du premier moteur électrique d'entraînement 10, via le train d'engrenages 11. Un module d'arrachage comprend plusieurs pinces d'arrachage, chaque pince étant formée d'une lame mobile 8 et d'une lame fixe 9 adjacente. La base d'une lame mobile 8 suit la rainure d'une came interne et s'applique et s'éloigne successivement d'une lame fixe 9 adjacente lors de son entraînement en rotation autour de l'axe longitudinal du rouleau d'épilation 3. Les pinces des modules d'arrachage sont décalées angulairement sur la périphérie du rouleau d'épilation 3. En fonctionnement, lorsque le premier moteur électrique 10 est alimenté, il met en rotation le rouleau d'épilation 3 dont les pinces se ferment et s'ouvrent successivement et arrachent les poils de la zone à épiler qui se présentent devant la tête à épiler. Un tel cylindre rotatif est mieux décrit dans la demande de brevet FR 2 858 528 au nom de la demanderesse et constitue un exemple de réalisation d'appareil à épiler selon l'invention.The tweezer head 2 has two side covers 6, 7, laterally sandwiching the depilating roller 3. The depilating roller 3 comprises several tear-off modules carried by a peripheral cage concentric with the longitudinal axis of the roll and driven in rotation by a drive pinion receiving the movement of the first drive motor 10, via the gear train 11. A pickup module comprises a plurality of picking pliers, each clamp being formed of a movable blade 8 and a fixed blade 9 adjacent. The base of a movable blade 8 follows the groove of an inner cam and applies and moves away successively from an adjacent fixed blade 9 during its driving in rotation about the axis The pliers of the removal modules are angularly offset on the periphery of the epilation roller 3. In operation, when the first electric motor 10 is energized, it rotates the epilation roller 3 whose pliers close and open successively and tear off the hairs of the area to be treated in front of the depilatory head. Such a rotary cylinder is better described in the patent application FR 2,858,528 in the name of the applicant and is an embodiment of the depilatory device according to the invention.

Selon l'invention, l'appareil comporte des moyens antidouleur comprenant un ventilateur 20 actionné par un deuxième moteur électrique 14 d'axe de sortie 15 décalé angulairement par rapport à l'axe de sortie 12 du premier moteur électrique 10. Le deuxième moteur électrique 14 est agencé de manière à ce que son axe de sortie 15 soit transversal à l'axe longitudinal du boîtier 1. Le ventilateur 20 comprend une roue à aubes 21 montée sur l'arbre d'axe de sortie 15 du deuxième moteur électrique 14 et tournant donc à la même vitesse que celui-ci, de préférence supérieure à 5000tr/min. Lorsqu'il est entraîné en rotation, le ventilateur 20 aspire l'air ambiant à partir d'une ouverture d'entrée 22 du boîtier 1 et l'envoie en direction de la peau par une ouverture de sortie 32 matérialisée par une buse plate 24 (fig. 3 et 4). Plus particulièrement, l'air soufflé par le ventilateur 20 est récupéré à la sortie de sa volute 25 par un conduit aéraulique 26 qui le dirige vers la sortie du boîtier 1 via la buse plate 24 qui est orientée en direction de la peau. La buse plate 24 est adjacente au rouleau d'épilation 3, sa longueur correspond à celle du rouleau d'épilation 3 et elle est agencée à l'avant de celui-ci dans le sens de déplacement de l'appareil sur la peau. Dans une réalisation avantageuse, la buse plate 24 de sortie d'air fait saillie à l'extérieur du boîtier 1 pour arriver au plus près de la peau. Ceci permet d'envoyer un flux d'air concentré et aplati, formant une lame ou un rideau d'air soufflé devant le rouleau lors de l'épilation pour insensibiliser la peau avant l'arrachage et rendre supportable l'arrachage qui s'ensuit. A titre d'exemple, la buse plate 24 de sortie représentée a une forme générale rectangulaire à coins arrondis, de longueur d'environ 28mm et de largeur d'environ 5mm.According to the invention, the apparatus comprises painter means comprising a fan 20 actuated by a second electric motor 14 of output axis 15 angularly offset relative to the output axis 12 of the first electric motor 10. The second electric motor 14 is arranged so that its output axis 15 is transverse to the longitudinal axis of the housing 1. The fan 20 comprises a bladed wheel 21 mounted on the output shaft shaft 15 of the second electric motor 14 and thus rotating at the same speed as this one, preferably greater than 5000tr / min. When rotated, the fan 20 draws ambient air from an inlet opening 22 of the housing 1 and sends it towards the skin through an outlet opening 32 embodied by a flat nozzle 24. ( Fig. 3 and 4 ). More particularly, the air blown by the fan 20 is recovered at the outlet of its volute 25 by an air duct 26 which directs it to the outlet of the housing 1 via the flat nozzle 24 which is oriented towards the skin. The flat nozzle 24 is adjacent to the hair removal roller 3, its length corresponds to that of the hair removal roller 3 and it is arranged in front of the latter in the direction of movement of the device on the skin. In an advantageous embodiment, the flat nozzle 24 of air outlet protrudes outside the housing 1 to get closer to the skin. This makes it possible to send a stream of concentrated and flattened air, forming a blade or a curtain of air blown in front of the roller during hair removal to numb the skin before tearing and to make the resulting tearing action bearable. . By way of example, the outlet flat nozzle 24 shown has a generally rectangular shape with rounded corners, with a length of approximately 28 mm and a width of approximately 5 mm.

Le ventilateur 20 est du type centrifuge à cage d'écureuil ou comportant des aubes recourbées vers l'avant dans le sens de la rotation, notamment selon la flèche arquée de la figure 3. Le ventilateur 20 comprend la roue à aubes 21 entourée d'une volute 25 en forme d'escargot ou de spirale logarithmique. Afin de pouvoir être adapté au fonctionnement avec un appareil à épiler, le ventilateur 20 de l'invention doit remplir des conditions de bon rendement aéraulique (débit, vitesse d'écoulement de l'air), de faible bruit en fonctionnement et de compacité de sa construction. Après calculs et essais effectués en laboratoire, on a déterminé le dimensionnement et les caractéristiques optimums du ventilateur 20. Ainsi, à titre d'exemple, la roue 21 a un diamètre d'environ 26 mm comportant vingt aubes 27 couchées vers l'avant, la hauteur d'une aube 27 étant d'environ 10 mm et l'espacement des aubes d'environ 3mm. La volute 25 a une forme d'escargot et assure l'augmentation progressive du débit du ventilateur à partir de son bec 28 jusqu'au canal de sortie 29 de la volute.The fan 20 is of the squirrel-cage centrifugal type or has blades curved forwards in the direction of rotation, in particular along the arcuate arrow of the figure 3 . The fan 20 comprises the paddle wheel 21 surrounded by a snail-shaped volute 25 or a logarithmic spiral. In order to be able to be adapted to operation with a depilatory device, the ventilator 20 of the invention must fulfill conditions of good aerodynamic efficiency (flow rate, speed of airflow), low operating noise and compactness of the air. its construction. After calculations and tests carried out in the laboratory, the design and the optimum characteristics of the fan 20 have been determined. Thus, for example, the wheel 21 has a diameter of about 26 mm with twenty blades 27 lying forwardly, the height of a blade 27 being about 10 mm and the blade spacing of about 3 mm. The volute 25 has a snail shape and ensures the gradual increase of the fan flow from its spout 28 to the outlet channel 29 of the volute.

Tel que mieux visible à la figure 4, le canal de sortie 29 de la volute 25 débouche dans un conduit aéraulique 26. Le conduit aéraulique 26 est parallèle à l'axe longitudinal du boîtier 1 et perpendiculaire à l'axe de rotation de la roue 21 et donc à l'axe de sortie 15 du deuxième moteur 14. Le conduit aéraulique 26 est de préférence un conduit rectiligne qui envoie en direction longitudinale le flux d'air tangentiel sortant de la volute 25, selon la flèche longitudinale de la fig.3. Le rayon de courbure 30 du bec de volute 25 se prolonge par une paroi latérale en biais du conduit aéraulique 26 et permet au flux d'air tangentiel sortant de la volute 25 de se propager progressivement dans le conduit aéraulique 26 et de sortir, sans pertes de charge, par toute la largeur de la buse plate 24 de sortie d'air. Pour améliorer encore plus le passage du flux d'air dans le conduit aéraulique 26, les parois du conduit doivent être lisses, exemptes de marche ou d'arête vive, la surface interne du conduit aéraulique 26 est polie glace, à une rugosité très faible.As best seen in the figure 4 the outlet channel 29 of the volute 25 opens into an air duct 26. The air duct 26 is parallel to the longitudinal axis of the casing 1 and perpendicular to the axis of rotation of the wheel 21 and therefore to the axis of output 15 of the second motor 14. The air duct 26 is preferably a rectilinear conduit which sends in the longitudinal direction the tangential air flow leaving the volute 25, according to the longitudinal arrow of the fig.3 . The radius of curvature 30 of the volute spout 25 is extended by a lateral side wall of the air duct 26 and allows the tangential air flow leaving the volute 25 to spread progressively in the air duct 26 and out, without losses charge, by the entire width of the flat nozzle 24 air outlet. To further improve the passage of the air flow in the air duct 26, the walls of the duct must be smooth, free of walking or sharp edge, the inner surface of the air duct 26 is polished ice at a very low roughness .

Selon un aspect avantageux de l'invention, la partie supérieure de la volute 25 , la paroi supérieure du conduit aéraulique 26, formant une paroi avant 31, et la paroi supérieure de la buse plate 24 sont intégrées au boîtier, notamment à sa coque avant. Cette coque avant présenterait alors une ouverture grillagée au niveau de l'ouverture d'entrée 22 et ayant sensiblement une même forme et les mêmes dimensions que cette dernière.According to an advantageous aspect of the invention, the upper part of the volute 25, the upper wall of the air duct 26, forming a front wall 31, and the upper wall of the flat nozzle 24 are integrated into the housing, in particular to its front shell. This front shell then has a mesh opening at the inlet opening 22 and having substantially the same shape and the same dimensions as the latter.

En fonctionnement, on met en marche l'appareil en actionnant le bouton marche/arrêt. Plus particulièrement, on alimente le premier moteur électrique 10 qui fait tourner le rouleau d'épilation 3 et, simultanément, le deuxième moteur électrique 14 qui fait tourner le ventilateur 20. Lorsque le ventilateur 20 est mis en rotation, il crée un flux d'air entre l'ouverture d'entrée d'air 22 et la buse plate 24 de sortie d'air de l'appareil. Le circuit du flux d'air est mieux représenté par les flèches de la figure 3, l'aspiration du flux d'air se faisant perpendiculairement au boîtier 1, le flux d'air se déplaçant ensuite selon la direction longitudinale du boîtier 1 jusqu'au rouleau d'épilation 3, la sortie étant sur le même côté du boîtier.In operation, the device is switched on by pressing the on / off button. More particularly, it feeds the first electric motor 10 which rotates the epilation roller 3 and simultaneously the second electric motor 14 which rotates the fan 20. When the fan 20 is rotated, it creates a flow of air between the air inlet opening 22 and the flat air outlet nozzle 24 of the apparatus. The air flow circuit is better represented by the arrows of the figure 3 , the aspiration of the air flow being perpendicular to the housing 1, the air flow then moving in the longitudinal direction of the housing 1 to the hair removal roller 3, the outlet being on the same side of the housing.

L'appareil de l'invention permet déjà de produire un flux d'air concentré, en forme de lame ou rideau d'air, orienté en direction de la peau et ayant un bon débit, d'environ 3,8m3/h qui est obtenu avec une vitesse de rotation de seulement 5000tr/min, pour générer un effet d'apaisement lors de l'arrachage. De surcroît, il a été constaté que, avec cet appareil de l'invention, en doublant la vitesse de rotation du ventilateur, on obtient alors un débit d'air d'environ 8m3/h, ce qui démontre bien l'efficacité de cette construction et le choix des paramètres de fonctionnement de l'appareil. En réduisant la section de passage au niveau de la buse plate 24 de sortie d'air, les vitesses sont plus élevées, les pertes de charge générées par cette réduction de section de passage étant largement compensées par le débit d'air puissant soufflé par le ventilateur. Ce rendement aéraulique amélioré permet alors d'obtenir des vitesses d'air plus élevées pour un meilleur ressenti au niveau de la peau.The apparatus of the invention already makes it possible to produce a stream of concentrated air, in the form of a blade or air curtain, oriented in the direction of the skin and having a good flow rate, of about 3.8 m 3 / h which is obtained with a rotation speed of only 5000rpm, to generate a soothing effect during tearing. Moreover, it has been found that, with this apparatus of the invention, by doubling the speed of rotation of the fan, an air flow rate of approximately 8 m 3 / h is obtained, which clearly demonstrates the effectiveness of this construction and the choice of operating parameters of the device. By reducing the passage section at the level of the flat nozzle 24 of the air outlet, the speeds are higher, the pressure drops generated by this reduction of passage section being largely compensated by the powerful air flow blown by the fan. This improved airflow efficiency then makes it possible to obtain higher air speeds for a better feeling on the skin.

Cet appareil permet donc de souffler un flux d'air très puissant et à grande vitesse en direction de la peau, tout en gardant une bonne ergonomie et sans augmenter outre mesure son encombrement.This device allows to blow a very powerful air flow at high speed towards the skin, while maintaining good ergonomics and without to excessively increase its size.

Les moyens antidouleur de l'appareil sont ainsi efficaces en fonctionnement tout en s'intégrant bien à un appareil à épiler de construction compacte. Par ailleurs, de par la simplification de la transmission, l'entière construction, ainsi que l'assemblage de l'appareil sont plus économiques, ce qui permet de bien compenser l'éventuel surcoût dû à la présence d'un moteur supplémentaire.The painter means of the device are thus effective in operation while integrating well with a depilatory device of compact construction. Furthermore, by simplifying the transmission, the entire construction, as well as the assembly of the device are more economical, which makes it possible to compensate for any additional cost due to the presence of an additional engine.

D'autres variantes et modes de réalisation de l'invention peuvent être réalisés sans sortir du cadre de ses revendications.Other variants and embodiments of the invention may be made without departing from the scope of its claims.

Ainsi, on peut envisager l'utilisation d'un autre type de ventilateur associé à une buse plate apte à concentrer le flux d'air et le diriger vers la peau.Thus, one can consider the use of another type of fan associated with a flat nozzle capable of concentrating the flow of air and directing it towards the skin.

Claims (11)

  1. An epilator appliance comprising a casing (1) designed to be held in the hand and comprising means of epilation by plucking hair from the skin and drive means for driving the means of epilation comprising a first electric motor (10) and a blower (20) driven by a second electric motor (14) to create an air flow between an inlet opening (22) of the casing and an outlet opening (32) of the casing, said epilator being characterised in that the output shaft (15) of the second electric motor (14) is angularly offset with respect to the outlet shaft (12) of the first electric motor (10).
  2. An appliance according to claim 1, characterised in that the means of epilation comprises at least one tweezer carried by an epilator roller (3) rotating around its longitudinal axis (X-X') and in that the output shaft (15) of the second electric motor (14) is substantially transversal to the longitudinal axis (X-X') of the epilator roller (3).
  3. An appliance according to one of claims 1 or 2, characterised in that the output shaft (15) of the second electric motor (14) is substantially transversal to the longitudinal axis of the casing (1).
  4. An appliance according to one of the preceding claims, characterised in that said blower (20) is a squirrel cage centrifugal blower.
  5. An appliance according to claim 4, characterised in that the blower (20) comprises a volute (25) surrounding an impeller (21), the outlet of the volute (25) being extended by a longitudinal air duct (26).
  6. An appliance according to claim 5, characterised in that the air duct (26) is connected to a flat air outlet nozzle (24) arranged parallel to the longitudinal side of the epilator roller (3).
  7. An appliance according to claim 6, characterised in that the flat nozzle (24) is adjacent to the epilator roller (3) by being arranged in front of the latter in the direction of movement of the appliance on the skin.
  8. An epilator appliance according to one of the preceding claims, characterised in that the two electric motors (10,14) are arranged one behind the other in the lengthwise direction of the casing (1), the first electric motor (10) being located between the epilator roller (3) and the second electric motor (14).
  9. An epilator appliance according to one of the preceding claims, characterised in that the air inlet opening (22), the front wall (31) of the air duct (26) and the flat air outlet nozzle (24) belong to the front shell of the casing (1).
  10. An appliance according to one of the preceding claims, characterised in that the epilator roller (3) is supported by a section forming the head of the casing pivotally mounted in relation to a second section forming the grip handle.
  11. An appliance according to one of the preceding claims, characterised in that the epilator roller (3) is removably mounted in relation to the casing (1).
EP09718991A 2008-01-31 2009-01-26 Epilator with optimized air flow Not-in-force EP2247216B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0800523A FR2926962B1 (en) 2008-01-31 2008-01-31 OPTIMIZED AIR STREAMING APPARATUS
PCT/FR2009/000079 WO2009112688A2 (en) 2008-01-31 2009-01-26 Epilator with optimized air flow

Publications (2)

Publication Number Publication Date
EP2247216A2 EP2247216A2 (en) 2010-11-10
EP2247216B1 true EP2247216B1 (en) 2011-08-10

Family

ID=39736978

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Application Number Title Priority Date Filing Date
EP09718991A Not-in-force EP2247216B1 (en) 2008-01-31 2009-01-26 Epilator with optimized air flow

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EP (1) EP2247216B1 (en)
CN (1) CN201727028U (en)
AT (1) ATE519395T1 (en)
FR (1) FR2926962B1 (en)
WO (1) WO2009112688A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965154B1 (en) 2010-09-27 2012-09-28 Seb Sa EPILATOR WITH REMOVABLE MASSAGE HEAD
FR2965459B1 (en) 2010-09-30 2012-10-26 Seb Sa EPILATOR WITH REDUCED COST
FR2968513B1 (en) 2010-12-08 2013-01-11 Seb Sa EPILATOR WITH PRECISION HEAD
CN106689312A (en) * 2016-12-01 2017-05-24 重庆广恒食品开发有限公司 Device for removing pig hair

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917678A (en) * 1988-09-01 1990-04-17 Remington Products, Inc. Depilatory device
FR2709933B1 (en) * 1993-09-15 1996-05-15 Seb Sa Mechanical hair removal device by pulling hairs from the skin.
US6676670B1 (en) * 2002-08-20 2004-01-13 Moshe Dolev Hair depilating device with improved plucking efficiency
FR2904514B1 (en) * 2006-08-01 2008-09-05 Seb Sa APPARATUS FOR WEIGHING WITH ANTI-COLOR MEANS

Also Published As

Publication number Publication date
CN201727028U (en) 2011-02-02
WO2009112688A3 (en) 2009-11-26
ATE519395T1 (en) 2011-08-15
FR2926962A1 (en) 2009-08-07
EP2247216A2 (en) 2010-11-10
FR2926962B1 (en) 2010-03-19
WO2009112688A2 (en) 2009-09-17

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