EP1191858A1 - Hair remover with vibrating rotary roller - Google Patents

Hair remover with vibrating rotary roller

Info

Publication number
EP1191858A1
EP1191858A1 EP00949616A EP00949616A EP1191858A1 EP 1191858 A1 EP1191858 A1 EP 1191858A1 EP 00949616 A EP00949616 A EP 00949616A EP 00949616 A EP00949616 A EP 00949616A EP 1191858 A1 EP1191858 A1 EP 1191858A1
Authority
EP
European Patent Office
Prior art keywords
roller
housing
vibrations
rotary roller
assembly
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
EP00949616A
Other languages
German (de)
French (fr)
Other versions
EP1191858B1 (en
Inventor
Franck Mandica
Daniel Bontoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP1191858A1 publication Critical patent/EP1191858A1/en
Application granted granted Critical
Publication of EP1191858B1 publication Critical patent/EP1191858B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to a hair removal device of the type comprising a rotary roller provided with pliers intended to pluck unwanted, unwanted hair from the human body.
  • This type of apparatus comprises tongs in the form of blades or discs arranged on a rotary roller, the tongs being caused to close and open periodically so as to clamp the hairs close to the skin and, respectively, evacuate the hairs pulled out by the rotation of the roller. Pulling out hair is a very effective method against regrowth, but often it causes significant pain.
  • WO 97/00032 has also proposed a rotary pliers epilator comprising a series of movable rollers pushed radially by centrifugal force and or by springs, rollers which apply mechanical impulses to the skin in order to camouflage the pain caused by hair removal.
  • This solution is however complicated, it also requires precision and high costs for its components.
  • the object of the invention is to remedy, at least in part, the abovementioned drawbacks and to propose a tweezer with tweezers intended to apply vibratory stimulation to the area to be epilated substantially at the same time as the pulling of the hairs so to effectively mask the pain felt during hair removal.
  • Another object of the invention is a hair-removing device provided with reliable pain relief means, of simple construction and which lend themselves to mass production, for lower manufacturing costs.
  • An additional object of the invention is a depilatory device with pain-relieving means which act simultaneously with the removal, while leaving the area to be depilated visible.
  • the means for driving the epilating roller in rotation also serve to generate vibrations at the same time as the uprooting.
  • the vibratory stress on the skin therefore produces an analgesic effect simultaneously with the depilation process, reducing the pain throughout this process.
  • Mechanical vibration stimulation is therefore obtained with very simple means, for example using only an unbalanced part placed on, or in relation to, an existing part of the assembly formed by the drive motor, the transmission system and the rotating roller.
  • unbalance part is generally understood a rotating part comprising a counterweight which produces an imbalance in the latter because its center of mass is not on the axis of rotation.
  • the part can be a cam or an eccentric interacting with a part of the housing.
  • the frequency of the vibrations produced in the rotary roller is greater than 50 Hz.
  • the analgesic effect is a function of the frequency of vibratory stimulation.
  • the frequency can be advantageously chosen by the speed of rotation of the unbalanced part.
  • the elastic means for mounting the assembly in the housing and the moving part are determined so that the amplitude of the vibrations is between 0.1 mm and 1 mm, preferably 0.5 mm.
  • the moving part generates vibrations of the rotating roller in a direction substantially perpendicular to the skin.
  • the rotary roller therefore strikes the skin vertically, the vibrations being completely absorbed by the latter, which ensures an effective analgesic effect.
  • the moving part generates vibrations in rotation in the rotary roller.
  • the moving part is an unbalance mounted fixed on one of the pinions of the transmission system.
  • the unbalance pinion rotates at a speed such that the vibration frequency of the rotary roller is approximately 120 Hz.
  • the moving part is an unbalance mounted fixed on one of the ends of the axis of the drive motor.
  • the motor speed is calculated and, respectively, the motor is dimensioned, so as to obtain vibrations at a frequency greater than 50 Hz.
  • the unbalance is mounted on the end of the motor axis by any known means of assembly, which can be dismantled or not dismantled, in particular by a screw fixing, clipping, welding, etc. This provides a simple means of vibrating, while remaining discreet.
  • the means generating vibrations are located very close to the skin, which ensures a more efficient transfer towards the latter, without their amplitude being reduced by the elastic means supporting the entire roller.
  • the vibrations in translation are vibrations in one dimension, which provides more stability to the assembly and requires less of the means of fixing the assembly relative to the housing.
  • the amplitude of the vibrations in translation is thus more easily controlled.
  • the moving part is an eccentric of which one end is fixedly mounted on the axis of one of the pinions of the transmission system and the other end slides in a longitudinal slot of the housing of the 'apparatus.
  • This solution makes it possible to create and impart vibrations in translation to the assembly formed by the engine, the transmission system and the epilation head. This is due to advantages of reliability in operation and ease of implementation.
  • the elastic means are constituted by springs.
  • the springs are simple and reliable means for fixing a floating assembly to its housing.
  • the vibrations produced in this assembly are not transmitted to the housing, because they are largely absorbed by the springs, which ensures on the one hand a good longevity of the moving parts and, on the other hand, a good comfort when using this device.
  • the springs can be easily dimensioned in order to obtain a given elasticity and, subsequently, a predetermined amplitude of the oscillations produced.
  • the drive motor, the transmission system and the rotary roller are fixedly mounted in a frame which is integrated into the housing of the device via a damping device.
  • This damping device has the role of modulating the amplitude of the oscillations generated by the vibration setting means. It is indeed established that the amplitude of an oscillator in forced regime must be judiciously damped in order to avoid phenomena of resonance. Such a damper therefore acts as a brake, delimiting the value of the amplitude of the oscillating system.
  • this shock absorber serves as a means of holding the frame of the engine, transmission and rotary roller assembly to the device housing.
  • the speed of the drive motor is adjustable so as to adjust the frequency of the vibrations in a frequency range between 50 and 300 Hz.
  • FIG. 1 is a front view of a hair removal device according to the first mode of the invention, the front part of the housing being removed;
  • FIG. 2 shows a perspective view of the same device, having, moreover, released the upper part of the device housing;
  • FIG. 3 shows a longitudinal sectional view of the device previously shown
  • FIG. 5 shows a schematic perspective view of an apparatus according to a third variant of the first embodiment of the invention, the front part of the housing being removed;
  • FIG. 6 shows a perspective view and a detail of an apparatus according to a second embodiment of the invention, the front part of the housing also being removed.
  • the appended figures illustrate a device for depilating human skin provided with means for vibrating certain components of this device so that the cycloid waves originating from these vibrations cause a pain-relieving effect on the area to be depilated.
  • a hair removal device comprising a rotary roller 1 provided with a central shaft 2 movable in rotation in a cradle 3 and a cage mounted coaxially on the tree it surrounds, this cage being formed by two lateral flanges 4,5 holding between them four rods 6.
  • the left flange 4 is integral with a pinion 9 engaged with a train reduction gear 10 driven by a pinion 11 secured to the output shaft 13 of a drive motor 12.
  • Two series of alternating cruciform blades 7, respectively 8, are mounted on the shaft 2 of the rotating roller 1, each pair of alternating blades 7,8 forming a tweezers, from which a movable blade 7 is capable of deviating from 'a fixed blade 8 and, alternatively, to apply against it.
  • the actuation of the movable blade 7 opens, respectively closes the epilation forceps, in order to tighten the hairs and pull them out, and to release them after pulling out, this as the roller rotates. 1.
  • the bristles of the area to be epilated appearing in front of a window 21 of the housing 20 are torn off following the rotation of the roller or of the epilation head 1.
  • the epilation head 1 may have brushes 14 and / or spikes 15 arranged in the recessed elongated zone extending parallel to the alignment of the blades 7,8.
  • the brushes 14 have the role of straightening the bristles with a view to their uprooting, while the pins 15 prevent the depilation head 1 from jumping on the skin when passing through the hollow area.
  • Figures 1 to 4 illustrate a first variant of the first embodiment of the invention according to which an eccentric flyweight 18 with an unbalance effect is integral with a pinion 16 of the transmission system or gear train 10.
  • the counterweight 18 has a cross section in the form of a half-disc with the center situated approximately in the axis of rotation of the pinion 16.
  • the counterweight or unbalance 18 can be made in one piece with the pinion 16 or in an attached part, made integral with the pinion by any known fixing means.
  • the epilation head or rotary roller 1, the transmission system 10 and the motor 12 are fixedly mounted on a frame 28, which frame is in turn mounted on a frame 25.
  • the frame 25 has a section longitudinal substantially U-shaped and has the role of holding the whole assembly 27 constituted by the head 1, the transmission system 10, the motor 12 and the chassis 28.
  • the frame 25 is mounted floating relative to the housing 20 by means of the elastic means 24.
  • the elastic means are constituted, in the examples shown, by springs 24.
  • the springs 24 are made of steel and they can be of several types: compression, tension or sheet springs. In other variants, it is possible to envisage replacing the springs 24 by other parts or assemblies having elasticity properties, such as buffers, rings or tubes made of elastomer or rubber.
  • the springs 24 connect the frame 25 to the housing 20, one of their ends being fixed in an orifice 23 of the fixing lug 22 which is integral with the housing 20 while the other is fixed in an orifice 26 made in frame 25.
  • the number of springs, as well as their respective stiffness constants, are chosen according to the configuration of the suspended assembly, as well as its static balancing.
  • the springs are at least three in number.
  • the center of mass of the assembly 27 is located in the vertical axis of symmetry of the frame 25.
  • the springs 24 placed symmetrically with respect to the median axis of the frame 25, are identical, having the same dimensions and the same stiffness constant.
  • the 4 springs 24 illustrated in FIGS. 1 to 4 and 6 have a length of around 15 mm and a stiffness of 25 N / m.
  • the center of mass of the assembly 27 is not located in the vertical axis of symmetry of the frame 25, the springs 24 must be calculated so as to ensure a vibratory regime with constant parameters over time. the assembly 27. Or else devices for guiding in vertical translation of the assembly 27 must be added to the housing 20.
  • the motor 12 drives, via the transmission system 10, the epilation head 1 and its tweezer mechanism in rotation.
  • the pinion 16 is thus set in motion and rotates the counterweight 18 which causes vibratory movements in the assembly suspended by the frame 25.
  • These oscillations are felt in the epilation head 1 in the form of movements having a main component in a direction perpendicular to the skin.
  • the roller 1 when the roller 1 is applied to the skin and plucks the hairs present in the window 21 of the appliance, the pain felt during hair removal is masked and substantially reduced by the vibrations that this same roller 1 imparts to the skin, especially on the area to be epilated.
  • the pinion 16 is rotated at around 7200 rot / min, so that the unbalance 18 vibrates the suspended assembly at a frequency of about 120 Hz, which corresponds to an optimal pain relieving frequency.
  • the vibrating assembly as described can be assimilated to an oscillator in forced regime. It is established that the amplitude of such an oscillator must be damped, in particular modulated in order to obtain a constant value during the oscillation of the latter, as well as to avoid resonance phenomena.
  • a damping device 30 is arranged inside the housing 20, so as to connect the floating frame 25 to the housing 20.
  • the damping device 30 comprises a flexible cable 31 in the form of a V whose the base is fixed, via a screw 34, to the frame 25, and the two branches have pads 32 bearing by the elasticity of the cable 31 on a flange 33.
  • the flange 33 is L-shaped, the part of which is contact with the pads 32 also has elasticity properties, the base being integral with the housing 20.
  • the pads 32 have a role of brake and they are in particular made of a polymer loaded with graphite.
  • damper has the advantage of a reduced manufacturing cost and significant manufacturing facilities.
  • damping devices can be used, in particular hydraulic or pneumatic dampers.
  • the roller 1 applied to the skin for the purpose of depilation imparts vibrational stimulations on the area to be depilated, vibrations whose frequency is approximately 120 Hz and the amplitude is approximately 0.5 mm.
  • the action of cycloid waves from these vibrations causes an analgesic effect on the skin at the same time as hair removal.
  • the unbalance flyweight is fixed to one of the ends of the axis 13 of the drive motor 12.
  • the speed of the motor 12 is calculated so as to obtain vibrations of the suspended system 27 of at least 50 Hz.
  • Other variants can also be envisaged according to which one or more weights are fixed to one or both ends of the axis 13 of the motor 12. These weights may have the same angular offset, or a different offset, so as to generate vibrations in a predetermined frequency range.
  • the unbalance weight 36 is supported by the epilation head or rotary roller 1.
  • the weight 36 advantageously has a cylindrical shape and it is arranged inside the rotary roller 1, at a predetermined distance from the axis 2 of the roller 1.
  • the dimensions of the counterweight 36 and the distance of its location from the axis 2 of the roller 1 are decisive in the amplitude values of the vibrations generated.
  • the speed of the roller must be calculated so as to obtain oscillations of the depilation head 1 greater than 50 Hz.
  • the moving part with an unbalance effect has a mass greater than 10 g, preferably between 10 g and 50 g over a radius of the order of 10 mm.
  • FIG. 6 illustrates a second embodiment of the invention in which the hair removal device comprises means generating vibrations in translation in the suspended system 27.
  • one of the pinions 16 of the transmission system or gear train 10 has an elongated axis 38 provided at its end opposite to that secured to the pinion 16, with a finger-shaped eccentric 40.
  • the finger 40 is fixed to the periphery of the front part of the axis 38 and it is caused to move in a horizontal oblong slot 42 formed in the housing 20 or in another part or fixed part of the device.
  • the motor 12 drives the roller 1 by the gear train 10.
  • the pinion 16 is set in motion and drives the axis 38, respectively the finger 40 in motion in the slot 42.
  • the rotational movement of the eccentric 40 is transformed into a vertical translational movement back and forth of the frame 25, and therefore of the whole assembly that it supports.
  • the vibrations in translation of the assembly 27 are transmitted to the skin, in the area to be epilated, by the vibrating epilation head 1, thus reducing the pain.
  • the pinion 16 rotates at a speed of approximately 7200 rot / min, which causes vibrations at a frequency of approximately 120 Hz, in a direction perpendicular to the skin of the epilation head 1.
  • the suspended frame 25 can be guided in its vertical movement on rails mounted fixed in the housing 20. This would ensure vibrational movements substantially in one direction.
  • the variants presented could be supplemented by means of additional damping of the vibrations transmitted to the housing 20 of the device.
  • an energy absorbing material being in this case interposed between the two boxes.
  • the material introduced between the two housings constitutes an intermediate coating damping the mechanical vibrations produced in the suspended assembly 27, such a material being in particular a foam-based material, a viscoelastic material or any other material having properties similar to these. .
  • An example of such a construction not shown in the appended figures, but based in particular on the embodiment illustrated in FIG. 1, comprises an axis integral with the housing 20, axis on which is mounted an unbalance of the same order of magnitude as the unbalance 18 supported by the pinion 16, but mounted at 180 ° relative to the latter. In this case, this second unbalance is rotated by the axis of the unbalance 18, respectively of the pinion 16, via an elastic coupling.
  • the second unbalance therefore rotates at the same speed as the unbalance 18, its mass and its radius at the center of gravity being adjusted so as to neutralize the vibrations in the housing 20.
  • this second unbalance induces in the housing 20 vibrations of sense contrary to those received (produced by the unbalance 18 in the suspended assembly 27), thereby compensating for the effect of vibrations in the housing.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pain & Pain Management (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Massaging Devices (AREA)
  • Dry Shavers And Clippers (AREA)
  • Cosmetics (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

The invention concerns a hair remover for removing body hair comprising a roller (1) mounted rotating in a housing (20) designed to be hand-held, said roller comprising at least two tweezers (7, 8) designed to grip and pull out the hairs, the roller (1) being capable of being driven in rotation by an electric motor (12) via a transmission system (10); the motor (12), the transmission system 810) and the roller (1) forming an assembly mounted in the housing (20) of the appliance via elastic means (24). The assembly comprises at least a component (18), mounted in such a way that, when it is actuated by the motor, it generates vibrations in said assembly reaching up to the rotary roller (1).

Description

APPAREIL A EP1LER A ROULEAU ROTATIF VIBRANT EP1LER WITH ROTATING VIBRATING ROLLER
La présente invention est relative à un appareil à épiler du type comportant un rouleau rotatif muni des pinces destinées à arracher les poils superflus, non désirés, du corps humain.The present invention relates to a hair removal device of the type comprising a rotary roller provided with pliers intended to pluck unwanted, unwanted hair from the human body.
Ce type d'appareil comporte des pinces sous forme de lames ou de disques disposés sur un rouleau rotatif, les pinces étant amenées à se fermer et s'ouvrir périodiquement de manière à serrer les poils à proximité de la peau et, respectivement, d'évacuer les poils arrachés de par la rotation du rouleau. L'arrachage des poils s'avère une méthode très efficace contre leur repousse, mais, souvent, il engendre une douleur non négligeable.This type of apparatus comprises tongs in the form of blades or discs arranged on a rotary roller, the tongs being caused to close and open periodically so as to clamp the hairs close to the skin and, respectively, evacuate the hairs pulled out by the rotation of the roller. Pulling out hair is a very effective method against regrowth, but often it causes significant pain.
L'état de la technique atteste l'utilisation de plusieurs méthodes faisant appel à différents dispositifs antidouleur associés à des appareils à épiler. Ainsi, on connaît, notamment du document WO 95/07638 au nom de la demanderesse, un dispositif de refroidissement de la peau, juste avant l'épilation, en utilisant l'évaporation d'un liquide déposé sur la peau. Ce dispositif fait cependant appel à des moyens, tels un réservoir de liquide, un ventilateur, qui augmentent l'encombrement et le coût de l'appareil.The state of the art attests to the use of several methods using different painkillers associated with hair removal devices. Thus, there is known, in particular from document WO 95/07638 in the name of the applicant, a device for cooling the skin, just before depilation, by using the evaporation of a liquid deposited on the skin. This device, however, uses means, such as a liquid tank, a fan, which increase the size and the cost of the device.
D'autres dispositifs antidouleur pour l'épilation sont connus des documents DE 44 08 809 et WO 98/55000 qui décrivent des moyens de stimulation électrique de la peau, par l'envoi des impulsions électriques, respectivement des décharges électriques sur la zone à épiler. Ces dispositifs s'avèrent d'une efficacité limitée, tout en étant complexes et d'un coût élevé.Other pain-relieving devices for hair removal are known from documents DE 44 08 809 and WO 98/55000 which describe means of electrical stimulation of the skin, by sending electrical pulses, respectively electrical discharges to the area to be epilated. . These devices prove to be of limited effectiveness, while being complex and of high cost.
L'efficacité des dispositifs antidouleur utilisés en association avec des appareils d' epilation a été beaucoup améliorée par l'utilisation de la stimulation mécanique vibratoire de la peau simultanément à l'épilation.The effectiveness of pain relief devices used in combination with hair removal devices has been greatly improved by the use of mechanical vibratory stimulation of the skin simultaneously with hair removal.
Ainsi, les documents EP 0 671 136 et WO 99/13750 au nom de la demanderesse décrivent des picots et des brosses montés fixes sur le rouleau rotatif portant les pinces. Les brosses et les picots sont supportés par une zone allongée en creux s' étendant parallèlement à l'alignement des pinces du rouleau rotatif. Les brosses ont un effet de redressement des poils avant l'épilation, pendant que les picots produisent sur la peau un effet de massage, plus ou moins accentué engendrant une sensation de douleur qui masque la douleur de l'épilation. Cependant, les brosses et surtout les picots restent assez longtemps en contact avec la peau et ils produisent un effet de frottement sur cette dernière, effet qui peut occasionner des irritations.Thus, documents EP 0 671 136 and WO 99/13750 in the name of the Applicant describe pins and brushes fixedly mounted on the rotary roller carrying the pliers. The brushes and the pins are supported by an elongated recessed area extending parallel to the alignment of the clamps of the rotary roller. The brushes have an effect of straightening the bristles before depilation, while the pins produce a massage effect on the skin, more or less accentuated generating a sensation of pain which masks the pain of depilation. However, the brushes and especially the spikes remain in contact with the skin for quite a long time and they produce a friction effect on the latter, an effect which can cause irritation.
On a également proposé dans le document WO 97/00032 un épilateur à pinces rotatives comportant une série de roulettes mobiles poussées radialement par la force centrifuge et ou par des ressorts, roulettes qui appliquent des impulsions mécaniques sur la peau afin de camoufler la douleur provoquée par l'arrachage des poils. Cette solution s'avère pourtant compliquée, elle nécessite également des précisions d'exécution et des coûts élevés pour ses composants.WO 97/00032 has also proposed a rotary pliers epilator comprising a series of movable rollers pushed radially by centrifugal force and or by springs, rollers which apply mechanical impulses to the skin in order to camouflage the pain caused by hair removal. This solution is however complicated, it also requires precision and high costs for its components.
D'autres épilateurs comportant des dispositifs de stimulation vibratoire de la peau ont été proposés dans les documents tel EP 0 493 849, où une grille vibrante coiffe les moyens d' epilation, où dans EP 0 760 219 où le boîtier de l'appareil comporte un cadre vibrant ou des rouleaux vibrants additionnels, le cadre ou les rouleaux étant agencés à côté du rouleau à pinces. Ces moyens vibreurs ont comme principaux désavantages de masquer la zone à épiler et de faire appel à des mécanismes additionnels pour leur entraînement.Other epilators comprising vibratory stimulation devices for the skin have been proposed in documents such as EP 0 493 849, where a vibrating grid covers the epilation means, or in EP 0 760 219 where the housing of the device comprises a vibrating frame or additional vibrating rollers, the frame or the rollers being arranged next to the gripper roller. The main disadvantages of these vibrating means are to mask the area to be depilated and to use additional mechanisms for training them.
Le document WO 97/19613 décrit un épilateur comportant un peigne ou une main à picots flexibles, montés vibrants sur le boîtier, en dehors du rouleau à pinces. Cependant, cette solution nécessite un mécanisme de mise en vibration encore plus élaboré, donc complexe.Document WO 97/19613 describes an epilator comprising a comb or a hand with flexible pins, vibrating mounted on the housing, outside of the clamp roller. However, this solution requires an even more sophisticated, therefore complex, vibration mechanism.
Le document FR 2 745 992 au nom de la demanderesse décrit un épilateur dont le rouleau d' epilation est entouré par un étrier monté vibrant sur le boîtier. Même si les moyens d'entraînement en vibration se trouvent un peu simplifiés par rapport aux réalisations précédentes, il n'en reste pas moins que les pièces en vibration masquent également la zone à épiler, ce qui est gênant pour l'utilisatrice.Document FR 2 745 992 in the name of the applicant describes an epilator whose epilating roller is surrounded by a stirrup mounted vibrating on the housing. Even if the vibration drive means are somewhat simplified by compared to previous embodiments, the fact remains that the vibrating parts also mask the area to be epilated, which is inconvenient for the user.
Le but de l'invention est de remédier, au moins en partie, aux inconvénients susmentionnés et de proposer un appareil à épiler à pinces destiné à appliquer des stimulations vibratoires sur la zone à épiler sensiblement en même temps que l'arrachage des poils de manière à masquer efficacement la douleur ressentie pendant l'épilation.The object of the invention is to remedy, at least in part, the abovementioned drawbacks and to propose a tweezer with tweezers intended to apply vibratory stimulation to the area to be epilated substantially at the same time as the pulling of the hairs so to effectively mask the pain felt during hair removal.
Un autre but de l'invention est un appareil à épiler muni de moyens antidouleur fiables, de construction simple et qui se prêtent à une fabrication en grande série, pour des coûts de fabrications moindres.Another object of the invention is a hair-removing device provided with reliable pain relief means, of simple construction and which lend themselves to mass production, for lower manufacturing costs.
Un but supplémentaire de l'invention est un appareil à épiler à moyens antidouleur qui agissent simultanément à l'arrachage, tout en laissant visible la zone à épiler.An additional object of the invention is a depilatory device with pain-relieving means which act simultaneously with the removal, while leaving the area to be depilated visible.
Ces buts sont atteints avec un appareil à épiler pour éliminer les poils corporels comportant un rouleau monté rotatif dans un boîtier destiné à être tenu à la main, ledit rouleau comportant au moins deux pinces destinées à serrer et arracher les poils, le rouleau étant susceptible d'être entraîné en rotation par un moteur électrique via un système de transmission ; le moteur, le système de transmission et le rouleau formant un ensemble monté dans le boîtier de l'appareil par l'intermédiaire de moyens élastiques, caractérisé en ce que l'ensemble comporte au moins une pièce montée de telle sorte que, lorsque mise en mouvement à partir du moteur, elle génère des vibrations dans ledit ensemble jusque dans le rouleau rotatif.These objects are achieved with a depilatory device for removing body hair, comprising a roller rotatably mounted in a housing intended to be held in the hand, said roller comprising at least two pliers intended to clamp and pluck the hairs, the roller being capable of '' be driven in rotation by an electric motor via a transmission system; the motor, the transmission system and the roller forming an assembly mounted in the housing of the device by means of elastic means, characterized in that the assembly comprises at least one part mounted so that, when put in movement from the motor, it generates vibrations in said assembly as far as in the rotary roller.
Ainsi, les moyens d'entraînement en rotation du rouleau d'épilation servent également pour générer des vibrations en même temps que l'arrachage. La sollicitation vibratoire de la peau produit donc un effet antalgique simultanément au processus d'épilation réduisant la douleur tout au long de ce processus. Les stimulations vibratoires mécaniques sont donc obtenues avec des moyens très simples, en utilisant par exemple seulement une pièce à balourd placée sur, ou en relation avec, une pièce existante de l'ensemble formé par le moteur d'entraînement, le système de transmission et le rouleau rotatif. Par pièce à balourd on comprend généralement une pièce tournante comportant une masselotte qui produit un déséquilibre dans cette dernière du fait que son centre de masse n'est pas sur l'axe de rotation. Selon un autre mode de réalisation, la pièce peut être une came ou un excentrique interagissant avec une partie du boîtier. L'utilisation d'une seule pièce complémentaire dans un appareil à épiler confère l'avantage d'une solution simple, fiable et qui ne nécessite pas de moyen vibreur extérieur additionnel à côté de la tête d'épilation ou porté par cette dernière.Thus, the means for driving the epilating roller in rotation also serve to generate vibrations at the same time as the uprooting. The vibratory stress on the skin therefore produces an analgesic effect simultaneously with the depilation process, reducing the pain throughout this process. Mechanical vibration stimulation is therefore obtained with very simple means, for example using only an unbalanced part placed on, or in relation to, an existing part of the assembly formed by the drive motor, the transmission system and the rotating roller. By unbalance part is generally understood a rotating part comprising a counterweight which produces an imbalance in the latter because its center of mass is not on the axis of rotation. According to another embodiment, the part can be a cam or an eccentric interacting with a part of the housing. The use of a single complementary piece in a hair removal device gives the advantage of a simple, reliable solution which does not require any additional external vibrating means next to or carried by the epilation head.
Avantageusement, la fréquence des vibrations produites dans le rouleau rotatif est supérieure à 50 Hz.Advantageously, the frequency of the vibrations produced in the rotary roller is greater than 50 Hz.
Des études médicales théoriques et appliquées ont en effet établi que l'effet antalgique est une fonction de la fréquence de la stimulation vibratoire. Dans le cadre de l'invention, la fréquence peut être choisie avantageusement par la vitesse de rotation de la pièce à balourd.Theoretical and applied medical studies have indeed established that the analgesic effect is a function of the frequency of vibratory stimulation. In the context of the invention, the frequency can be advantageously chosen by the speed of rotation of the unbalanced part.
Avantageusement, les moyens élastiques de montage de l'ensemble dans le boîtier et la pièce en mouvement sont déterminés de telle sorte que l'amplitude des vibrations soit comprise entre 0,1 mm et 1 mm, préférentieliement 0,5 mm.Advantageously, the elastic means for mounting the assembly in the housing and the moving part are determined so that the amplitude of the vibrations is between 0.1 mm and 1 mm, preferably 0.5 mm.
Il a été montré qu'une telle amplitude appliquée avec une fréquence supérieure à 50 Hz, masque la douleur due à l'épilation.It has been shown that such an amplitude applied with a frequency greater than 50 Hz masks the pain due to epilation.
De préférence, la pièce en mouvement génère des vibrations du rouleau rotatif dans une direction sensiblement perpendiculaire à la peau.Preferably, the moving part generates vibrations of the rotating roller in a direction substantially perpendicular to the skin.
Le rouleau rotatif vient donc frapper verticalement la peau, les vibrations étant entièrement absorbées par cette dernière, ce qui assure un effet antalgique efficace.The rotary roller therefore strikes the skin vertically, the vibrations being completely absorbed by the latter, which ensures an effective analgesic effect.
Selon un premier mode de réalisation de l'invention, la pièce en mouvement génère des vibrations en rotation dans le rouleau rotatif.According to a first embodiment of the invention, the moving part generates vibrations in rotation in the rotary roller.
Cette solution s'avère très simple à mettre en œuvre, l'appareil comportant plusieurs pièces en rotation, il suffit d'agencer une masselotte déséquilibrée sur une d'entre elles pour obtenir ces vibrations en rotation. De plus, elle est facilement adaptable à tout épileur à tête d'épilation rotative.This solution turns out to be very simple to implement, the device comprising several rotating parts, it suffices to arrange an unbalanced counterweight on one of them to obtain these rotating vibrations. In addition, it is easily adaptable to any epilator with rotary epilation head.
Selon une première variante du premier mode de réalisation, la pièce en mouvement est un balourd monté fixe sur un des pignons du système de transmission.According to a first variant of the first embodiment, the moving part is an unbalance mounted fixed on one of the pinions of the transmission system.
Cette solution s'avère extrêmement simple car, il suffit de placer le balourd sur un pignon tournant à la bonne vitesse afin d'obtenir des vibrations à la fréquence voulue de l'ensemble, les vibrations en rotation produites par le pignon à balourd étant transmises à la tête d'épilation. De plus, la solution présente des facilités constructives importantes, la pièce à balourd pouvant bien s'intégrer à l'intérieur du boîtier.This solution proves to be extremely simple because, it suffices to place the unbalance on a pinion rotating at the right speed in order to obtain vibrations at the desired frequency of the assembly, the vibrations in rotation produced by the unbalanced pinion being transmitted. at the head of epilation. In addition, the solution presents significant constructive facilities, the unbalanced part being able to integrate well inside the housing.
Avantageusement, le pignon à balourd tourne à une vitesse telle que la fréquence de vibration du rouleau rotatif est d'environ 120 Hz.Advantageously, the unbalance pinion rotates at a speed such that the vibration frequency of the rotary roller is approximately 120 Hz.
Il est en effet établi que l'atténuation de la douleur est la plus efficace avec une sollicitation vibratoire approximativement égale à 120 Hz.It is indeed established that the attenuation of the pain is the most effective with a vibratory stress approximately equal to 120 Hz.
Selon une deuxième variante du premier mode de réalisation, la pièce en mouvement est un balourd monté fixe sur l'une des extrémités de l'axe du moteur d'entraînement.According to a second variant of the first embodiment, the moving part is an unbalance mounted fixed on one of the ends of the axis of the drive motor.
Dans cette variante, la vitesse du moteur est calculée et, respectivement le moteur est dimensionné, de manière à obtenir des vibrations à une fréquence supérieure à 50 Hz. Le montage du balourd sur l'extrémité de l'axe du moteur se fait par tout moyen d'assemblage connu, démontable ou non démontable, notamment par une fixation à vis, par clipsage, par soudure, etc. Ceci offre un moyen de mise en vibration simple, tout en restant discrète.In this variant, the motor speed is calculated and, respectively, the motor is dimensioned, so as to obtain vibrations at a frequency greater than 50 Hz. The unbalance is mounted on the end of the motor axis by any known means of assembly, which can be dismantled or not dismantled, in particular by a screw fixing, clipping, welding, etc. This provides a simple means of vibrating, while remaining discreet.
Selon une troisième variante du premier mode de réalisation, la masse déséquilibrée est une masselotte supportée par le rouleau rotatif.According to a third variant of the first embodiment, the unbalanced mass is a counterweight supported by the rotary roller.
Ainsi, les moyens générant des vibrations sont situés tout près de la peau, ce qui assure un transfert plus efficace vers cette dernière, sans que leur amplitude soit réduite par les moyens élastiques supportant l'ensemble du rouleau.Thus, the means generating vibrations are located very close to the skin, which ensures a more efficient transfer towards the latter, without their amplitude being reduced by the elastic means supporting the entire roller.
Selon un deuxième mode de réalisation de l'invention, l'appareil comporte une pièce en mouvement qui génère des vibrations en translation dans le rouleau rotatif.According to a second embodiment of the invention, the device comprises a moving part which generates vibrations in translation in the rotary roller.
Les vibrations en translation sont des vibrations en une seule dimension, ce qui assure plus de stabilité à l'ensemble et sollicite moins les moyens de fixation de l'ensemble par rapport au boîtier. L'amplitude des vibrations en translation est ainsi plus facilement contrôlée.The vibrations in translation are vibrations in one dimension, which provides more stability to the assembly and requires less of the means of fixing the assembly relative to the housing. The amplitude of the vibrations in translation is thus more easily controlled.
Selon une variante préférentielle du deuxième mode de réalisation, la pièce en mouvement est un excentrique dont une extrémité est montée fixe sur l'axe d'un des pignons du système de transmission et l'autre extrémité coulisse dans une fente longitudinale du boîtier de l'appareil.According to a preferred variant of the second embodiment, the moving part is an eccentric of which one end is fixedly mounted on the axis of one of the pinions of the transmission system and the other end slides in a longitudinal slot of the housing of the 'apparatus.
Cette solution permet de créer et d'impartir des vibrations en translation à l'ensemble formé par le moteur, le système de transmission et la tête d'épilation. Ceci relève d'avantages de fiabilité en fonctionnement et de facilité de réalisation.This solution makes it possible to create and impart vibrations in translation to the assembly formed by the engine, the transmission system and the epilation head. This is due to advantages of reliability in operation and ease of implementation.
De préférence, les moyens élastiques sont constitués par des ressorts. Les ressorts constituent des moyens simples et fiables pour fixer un ensemble flottant à son boîtier. Ainsi, les vibrations produites dans cet ensemble ne sont pas transmises au boîtier, car elles sont en grande partie absorbées par les ressorts, ce qui assure d'une part une bonne longévité des pièces en mouvement et, d'autre part, un bon confort à l'utilisation de cet appareil. De plus, les ressorts peuvent être facilement dimensionnés afin d'obtenir une élasticité donnée et, par la suite, une amplitude prédéterminée des oscillations produites.Preferably, the elastic means are constituted by springs. The springs are simple and reliable means for fixing a floating assembly to its housing. Thus, the vibrations produced in this assembly are not transmitted to the housing, because they are largely absorbed by the springs, which ensures on the one hand a good longevity of the moving parts and, on the other hand, a good comfort when using this device. In addition, the springs can be easily dimensioned in order to obtain a given elasticity and, subsequently, a predetermined amplitude of the oscillations produced.
Avantageusement, le moteur d'entraînement, le système de transmission et le rouleau rotatif sont montés fixes dans un cadre qui est intégré au boîtier de l'appareil via un dispositif amortisseur.Advantageously, the drive motor, the transmission system and the rotary roller are fixedly mounted in a frame which is integrated into the housing of the device via a damping device.
Ce dispositif amortisseur a le rôle de moduler l'amplitude des oscillations engendrées par les moyens de mise en vibration. Il est en effet établi que l'amplitude d'un oscillateur en régime forcé doit être judicieusement amortie afin d'éviter des phénomènes de résonance. Un tel amortisseur joue donc un rôle de frein, délimitant la valeur de l'amplitude du système oscillant. De surcroît, cet amortisseur sert de moyen de maintien du cadre de l'ensemble moteur, transmission, rouleau rotatif au boîtier de l'appareil.This damping device has the role of modulating the amplitude of the oscillations generated by the vibration setting means. It is indeed established that the amplitude of an oscillator in forced regime must be judiciously damped in order to avoid phenomena of resonance. Such a damper therefore acts as a brake, delimiting the value of the amplitude of the oscillating system. In addition, this shock absorber serves as a means of holding the frame of the engine, transmission and rotary roller assembly to the device housing.
Selon une variante avantageuse de l'invention, la vitesse du moteur d'entraînement est réglable de manière à ajuster la fréquence des vibrations dans une gamme de fréquence comprise entre 50 et 300 Hz.According to an advantageous variant of the invention, the speed of the drive motor is adjustable so as to adjust the frequency of the vibrations in a frequency range between 50 and 300 Hz.
Ceci confère l'avantage de pouvoir facilement régler la fréquence des vibrations selon le degré de sensibilité de la personne l'utilisant. Il est en effet prouvé qu'au delà de 300 Hz, la fréquence de la stimulation vibratoire ne produit plus d'effet antalgique sur la peau.This gives the advantage of being able to easily adjust the frequency of the vibrations according to the degree of sensitivity of the person using it. It is indeed proven that beyond 300 Hz, the frequency of vibrational stimulation no longer produces an analgesic effect on the skin.
L'invention sera mieux comprise à l'étude des modes de réalisation pris à titre nullement représentatif et illustrés dans les figures annexées dans lesquelles : - la figure 1 est une vue frontale d'un appareil à épiler selon le premier mode de réalisation de l'invention, la partie avant du boîtier étant enlevée ;The invention will be better understood from the study of the embodiments taken in no way representative and illustrated in the appended figures in which: - Figure 1 is a front view of a hair removal device according to the first mode of the invention, the front part of the housing being removed;
- la figure 2 représente une vue en perspective du même appareil, ayant, de plus, dégagé la partie supérieure du boîtier de l'appareil ;- Figure 2 shows a perspective view of the same device, having, moreover, released the upper part of the device housing;
- la figure 3 représente une vue en coupe longitudinale de l'appareil précédemment représenté ;- Figure 3 shows a longitudinal sectional view of the device previously shown;
- les figures 4a et 4b illustrent des vues en coupe transversales selon les directions A-A et B-B de la figure 3 ;- Figures 4a and 4b illustrate cross-sectional views along the directions A-A and B-B of Figure 3;
- la figure 5 représente une vue en perspective schématique d'un appareil selon une troisième variante du premier mode de réalisation de l'invention, la partie avant du boîtier étant enlevée ;- Figure 5 shows a schematic perspective view of an apparatus according to a third variant of the first embodiment of the invention, the front part of the housing being removed;
- la figure 6 représente une vue en perspective et un détail d'un appareil selon un deuxième mode de réalisation de l'invention, la partie avant du boîtier étant également enlevée.- Figure 6 shows a perspective view and a detail of an apparatus according to a second embodiment of the invention, the front part of the housing also being removed.
Les figures annexées illustrent un appareil d'épilation de la peau humaine muni de moyens de mise en vibration de certains composants de cet appareil de telle sorte que les ondes cycloïdales issues de ces vibrations provoquent un effet antidouieur sur la zone à épiler.The appended figures illustrate a device for depilating human skin provided with means for vibrating certain components of this device so that the cycloid waves originating from these vibrations cause a pain-relieving effect on the area to be depilated.
Un exemple d'appareil d'épilation à l'intérieur duquel ont été intégrés des moyens de mise en vibration, notamment de la tête d'épilation de l'appareil, est décrit dans le document FR 2 758 060 au nom de la demanderesse. Il est cependant évident que cet appareil ne constitue qu'un exemple d'utilisation de moyens antidouleur selon l'invention, car tout appareil d'épilation, notamment à rouleau rotatif à pinces d'arrachage, peut être adapté dans le but de lui intégrer des moyens antidouleur de l'invention.An example of a hair removal device inside which have been integrated vibrating means, in particular of the hair removal head of the device, is described in document FR 2 758 060 in the name of the applicant. It is however obvious that this device is only one example of the use of pain relief means according to the invention, since any hair removal device, in particular with a rotary roller with pliers, can be adapted in order to integrate it. pain relief means of the invention.
Sur les figures 1 à 4 on peut remarquer un appareil d'épilation comprenant un rouleau rotatif 1 muni d'un arbre central 2 mobile en rotation dans un berceau 3 et d'une cage montée coaxialement sur l'arbre qu'elle entoure, cette cage étant formée par deux flasques latéraux 4,5 tenant entre eux quatre tiges 6.In Figures 1 to 4 we can notice a hair removal device comprising a rotary roller 1 provided with a central shaft 2 movable in rotation in a cradle 3 and a cage mounted coaxially on the tree it surrounds, this cage being formed by two lateral flanges 4,5 holding between them four rods 6.
Le fiasque gauche 4 est solidaire d'un pignon 9 en prise avec un train d'engrenages réducteur 10 entraîné par un pignon 11 solidaire de l'arbre de sortie 13 d'un moteur d'entraînement 12.The left flange 4 is integral with a pinion 9 engaged with a train reduction gear 10 driven by a pinion 11 secured to the output shaft 13 of a drive motor 12.
Deux séries de lames cruciformes alternées 7, respectivement 8, sont montées sur l'arbre 2 du rouleau rotatif 1 , chaque paire de lames alternées 7,8 formant une pince d'épilation, dont une lame mobile 7 est susceptible de s'écarter d'une lame fixe 8 et, alternativement, de s'appliquer contre celle-ci. L'actionnement de la lame mobile 7 provoque l'ouverture, respectivement la fermeture de la pince d'épilation, afin de serrer les poils et les arracher, et de les relâcher après arrachement, ceci au fur et au mesure de la rotation du rouleau 1. Ainsi, les poils de la zone à épiler se présentant devant une fenêtre 21 du boîtier 20, sont arrachés suite à la rotation du rouleau ou de la tête d'épilation 1.Two series of alternating cruciform blades 7, respectively 8, are mounted on the shaft 2 of the rotating roller 1, each pair of alternating blades 7,8 forming a tweezers, from which a movable blade 7 is capable of deviating from 'a fixed blade 8 and, alternatively, to apply against it. The actuation of the movable blade 7 opens, respectively closes the epilation forceps, in order to tighten the hairs and pull them out, and to release them after pulling out, this as the roller rotates. 1. Thus, the bristles of the area to be epilated appearing in front of a window 21 of the housing 20, are torn off following the rotation of the roller or of the epilation head 1.
Avantageusement, la tête d'épilation 1 peut présenter des brosses 14 et/ou des picots 15 agencés dans la zone allongée en creux s' étendant parallèlement à l'alignement des lames 7,8. Les brosses 14 ont le rôle de redresser les poils en vue de leur arrachage, pendant que les picots 15 évitent que la tête d'épilation 1 saute sur la peau au passage de la zone en creux.Advantageously, the epilation head 1 may have brushes 14 and / or spikes 15 arranged in the recessed elongated zone extending parallel to the alignment of the blades 7,8. The brushes 14 have the role of straightening the bristles with a view to their uprooting, while the pins 15 prevent the depilation head 1 from jumping on the skin when passing through the hollow area.
Les figures 1 à 4 illustrent une première variante du premier mode de réalisation de l'invention selon lequel une masselotte excentrée 18 à effet de balourd est solidaire d'un pignon 16 du système de transmission ou train d'engrenages 10. Dans l'exemple représenté, la masselotte 18 a une section transversale en forme de demi-disque avec le centre situé approximativement dans l'axe de rotation du pignon 16.Figures 1 to 4 illustrate a first variant of the first embodiment of the invention according to which an eccentric flyweight 18 with an unbalance effect is integral with a pinion 16 of the transmission system or gear train 10. In the example shown, the counterweight 18 has a cross section in the form of a half-disc with the center situated approximately in the axis of rotation of the pinion 16.
La masselotte ou balourd 18 peut être réalisé d'une seule pièce avec le pignon 16 ou en une pièce rapportée, rendue solidaire avec le pignon par tout moyen de fixation connu.The counterweight or unbalance 18 can be made in one piece with the pinion 16 or in an attached part, made integral with the pinion by any known fixing means.
Conformément à l'invention, la tête d'épilation ou rouleau rotatif 1 , le système de transmission 10 et le moteur 12 sont montés fixes sur un châssis 28, châssis qui est à son tour monté sur un cadre 25. Le cadre 25 a une section longitudinale sensiblement en forme de U et a le rôle de maintien de tout l'ensemble 27 constitué par la tête 1 , le système de transmission 10, le moteur 12 et le châssis 28.According to the invention, the epilation head or rotary roller 1, the transmission system 10 and the motor 12 are fixedly mounted on a frame 28, which frame is in turn mounted on a frame 25. The frame 25 has a section longitudinal substantially U-shaped and has the role of holding the whole assembly 27 constituted by the head 1, the transmission system 10, the motor 12 and the chassis 28.
Le cadre 25 est monté flottant par rapport au boîtier 20 par l'intermédiaire des moyens élastiques 24. Les moyens élastiques sont constitués, dans les exemples représentés, par des ressorts 24. Les ressorts 24 sont en acier et ils peuvent être de plusieurs types : ressorts de compression, de traction ou en feuille. Dans d'autres variantes, on peut envisager de remplacer les ressorts 24 par d'autres pièces ou ensembles ayant des propriétés d'élasticité, tels des tampons, anneaux ou tubes en élastomère ou caoutchouc.The frame 25 is mounted floating relative to the housing 20 by means of the elastic means 24. The elastic means are constituted, in the examples shown, by springs 24. The springs 24 are made of steel and they can be of several types: compression, tension or sheet springs. In other variants, it is possible to envisage replacing the springs 24 by other parts or assemblies having elasticity properties, such as buffers, rings or tubes made of elastomer or rubber.
Tel que représenté aux figures 1 à 6, les ressorts 24 relient le cadre 25 au boîtier 20, une de leurs extrémités étant fixée dans un orifice 23 de l'oreille de fixation 22 qui est solidaire du boîtier 20 pendant que l'autre est fixée dans un orifice 26 pratiqué dans le cadre 25.As shown in Figures 1 to 6, the springs 24 connect the frame 25 to the housing 20, one of their ends being fixed in an orifice 23 of the fixing lug 22 which is integral with the housing 20 while the other is fixed in an orifice 26 made in frame 25.
Le nombre de ressorts, ainsi que leurs constantes de raideur respectives, sont choisis en fonction de la configuration de l'ensemble suspendu, ainsi que de son équilibrage statique. Avantageusement, les ressorts sont au nombre d'au moins trois.The number of springs, as well as their respective stiffness constants, are chosen according to the configuration of the suspended assembly, as well as its static balancing. Advantageously, the springs are at least three in number.
Selon une variante avantageuse de l'invention, le centre de masse de l'ensemble 27 se situe dans l'axe de symétrie vertical du cadre 25. Dans ce cas, les ressorts 24 placés de manière symétrique par rapport à l'axe médian du cadre 25, sont identiques, ayant les mêmes dimensions et même constante de raideur. A titre d'exemple, les 4 ressorts 24 illustrés aux figures 1à 4 et 6, ont une longueur d'environ 15 mm et une raideur de 25 N/m.According to an advantageous variant of the invention, the center of mass of the assembly 27 is located in the vertical axis of symmetry of the frame 25. In this case, the springs 24 placed symmetrically with respect to the median axis of the frame 25, are identical, having the same dimensions and the same stiffness constant. By way of example, the 4 springs 24 illustrated in FIGS. 1 to 4 and 6 have a length of around 15 mm and a stiffness of 25 N / m.
Si, par contre, le centre de masse de l'ensemble 27 n'est pas situé dans l'axe de symétrie vertical du cadre 25, les ressorts 24 doivent être calculés de manière à assurer un régime vibratoire à paramètres constants dans le temps de l'ensemble 27. Ou bien des dispositifs de guidage en translation verticale de l'ensemble 27 doivent être ajoutés sur le boîtier 20.If, on the other hand, the center of mass of the assembly 27 is not located in the vertical axis of symmetry of the frame 25, the springs 24 must be calculated so as to ensure a vibratory regime with constant parameters over time. the assembly 27. Or else devices for guiding in vertical translation of the assembly 27 must be added to the housing 20.
En fonctionnement, le moteur 12 entraîne, via le système de transmission 10, la tête d'épilation 1 et son mécanisme de pinces en rotation. Le pignon 16 est ainsi mis en mouvement et fait tourner la masselotte 18 qui provoque des mouvements vibratoires dans l'ensemble suspendu par le cadre 25. Ces oscillations sont ressenties dans la tête d'épilation 1 sous forme de mouvements ayant une composante principale dans une direction perpendiculaire à la peau.In operation, the motor 12 drives, via the transmission system 10, the epilation head 1 and its tweezer mechanism in rotation. The pinion 16 is thus set in motion and rotates the counterweight 18 which causes vibratory movements in the assembly suspended by the frame 25. These oscillations are felt in the epilation head 1 in the form of movements having a main component in a direction perpendicular to the skin.
Ainsi, lorsque le rouleau 1 est appliqué sur la peau et arrache les poils se présentant dans la fenêtre 21 de l'appareil, la douleur ressentie lors de l'épilation est masquée et sensiblement réduite par les vibrations que ce même rouleau 1 impartit à la peau, notamment sur la zone à épiler.Thus, when the roller 1 is applied to the skin and plucks the hairs present in the window 21 of the appliance, the pain felt during hair removal is masked and substantially reduced by the vibrations that this same roller 1 imparts to the skin, especially on the area to be epilated.
De préférence, le pignon 16 est entraîné en rotation à environ 7200 rot/min, ce qui fait que le balourd 18 fait vibrer l'ensemble suspendu à une fréquence d'environ 120 Hz, ce qui correspond à une fréquence antidouleur optimale.Preferably, the pinion 16 is rotated at around 7200 rot / min, so that the unbalance 18 vibrates the suspended assembly at a frequency of about 120 Hz, which corresponds to an optimal pain relieving frequency.
II faut remarquer que l'ensemble vibrant tel que décrit peut être assimilé à un oscillateur en régime forcé. Il est établi que l'amplitude d'un tel oscillateur doit être amortie, notamment modulée afin d'obtenir une valeur constante pendant l'oscillation de cette dernière, ainsi que pour éviter des phénomènes de résonance.It should be noted that the vibrating assembly as described can be assimilated to an oscillator in forced regime. It is established that the amplitude of such an oscillator must be damped, in particular modulated in order to obtain a constant value during the oscillation of the latter, as well as to avoid resonance phenomena.
Ainsi, un dispositif amortisseur 30 est agencé à l'intérieur du boîtier 20, de manière à relier le cadre flottant 25 au boîtier 20. Dans les variantes présentées aux figures annexées, le dispositif amortisseur 30 comporte un câble flexible 31 en forme de V dont la base est fixée, via une vis 34, au cadre 25, et les deux branches comportent des patins 32 prenant appui de par l'élasticité du câble 31 sur une bride 33. La bride 33 est en forme de L, dont la partie en contact avec les patins 32 présente également des propriétés d'élasticité, la base étant solidaire du boîtier 20. Les patins 32 ont un rôle de frein et ils sont notamment en un polymère chargé de graphite.Thus, a damping device 30 is arranged inside the housing 20, so as to connect the floating frame 25 to the housing 20. In the variants presented in the appended figures, the damping device 30 comprises a flexible cable 31 in the form of a V whose the base is fixed, via a screw 34, to the frame 25, and the two branches have pads 32 bearing by the elasticity of the cable 31 on a flange 33. The flange 33 is L-shaped, the part of which is contact with the pads 32 also has elasticity properties, the base being integral with the housing 20. The pads 32 have a role of brake and they are in particular made of a polymer loaded with graphite.
La solution constructive choisie pour cet amortisseur présente l'avantage d'un coût de fabrication réduit et de facilités de fabrication importantes. Cependant, d'autres dispositifs amortisseurs peuvent être utilisés, notamment des amortisseurs hydrauliques ou pneumatiques.The constructive solution chosen for this damper has the advantage of a reduced manufacturing cost and significant manufacturing facilities. However, other damping devices can be used, in particular hydraulic or pneumatic dampers.
Ainsi, le rouleau 1 appliqué sur la peau en vue de l'épilation impartit des stimulations vibratoires sur la zone à épiler, des vibrations dont la fréquence se situe à environ 120 Hz et l'amplitude est d'environ 0,5 mm. L'action des ondes cycloïdales issues de ces vibrations provoque un effet antalgique sur la peau en même temps que l'épilation.Thus, the roller 1 applied to the skin for the purpose of depilation imparts vibrational stimulations on the area to be depilated, vibrations whose frequency is approximately 120 Hz and the amplitude is approximately 0.5 mm. The action of cycloid waves from these vibrations causes an analgesic effect on the skin at the same time as hair removal.
Selon une deuxième variante du premier mode de réalisation, non représentée aux dessins, la masselotte à effet de balourd est fixée sur une des extrémités de l'axe 13 du moteur d'entraînement 12. Dans ce cas, la vitesse du moteur 12 est calculée de manière à obtenir des vibrations du système suspendu 27 d'au moins 50 Hz. D'autres variantes peuvent également être envisagées selon lesquelles une ou plusieurs masselottes sont fixées sur une ou les deux extrémités de l'axe 13 du moteur 12. Ces masselottes peuvent présenter le même décalage angulaire, ou un décalage différent, de manière à engendrer des vibrations dans une gamme de fréquence prédéterminée.According to a second variant of the first embodiment, not shown in the drawings, the unbalance flyweight is fixed to one of the ends of the axis 13 of the drive motor 12. In this case, the speed of the motor 12 is calculated so as to obtain vibrations of the suspended system 27 of at least 50 Hz. Other variants can also be envisaged according to which one or more weights are fixed to one or both ends of the axis 13 of the motor 12. These weights may have the same angular offset, or a different offset, so as to generate vibrations in a predetermined frequency range.
Selon une troisième variante du premier mode de réalisation de l'invention, la masselotte à effet de balourd 36 est supportée par la tête d'épilation ou rouleau rotatif 1. Dans ce cas, la masselotte 36 a avantageusement une forme cylindrique et elle est agencée à l'intérieur du rouleau rotatif 1 , à une distance prédéterminée par rapport à l'axe 2 du rouleau 1. Les dimensions de la masselotte 36 et la distance de son emplacement par rapport à l'axe 2 du rouleau 1 sont déterminantes dans les valeurs de l'amplitude des vibrations générées. La vitesse du rouleau doit être calculée de manière à obtenir des oscillations de la tête dépilation 1 supérieures à 50 Hz. Avantageusement, la pièce en mouvement à effet de balourd a une masse supérieure à 10 g, de préférence comprise entre 10 g et 50 g sur un rayon de l'ordre de 10 mm.According to a third variant of the first embodiment of the invention, the unbalance weight 36 is supported by the epilation head or rotary roller 1. In this case, the weight 36 advantageously has a cylindrical shape and it is arranged inside the rotary roller 1, at a predetermined distance from the axis 2 of the roller 1. The dimensions of the counterweight 36 and the distance of its location from the axis 2 of the roller 1 are decisive in the amplitude values of the vibrations generated. The speed of the roller must be calculated so as to obtain oscillations of the depilation head 1 greater than 50 Hz. Advantageously, the moving part with an unbalance effect has a mass greater than 10 g, preferably between 10 g and 50 g over a radius of the order of 10 mm.
La figure 6 illustre un deuxième mode de réalisation de l'invention où l'appareil à épiler comporte des moyens générant des vibrations en translation dans le système suspendu 27.FIG. 6 illustrates a second embodiment of the invention in which the hair removal device comprises means generating vibrations in translation in the suspended system 27.
Selon ce mode de réalisation, un des pignons 16 du système de transmission ou train d'engrenages 10, présente un axe allongé 38 muni à son extrémité opposée à celle solidaire du pignon 16, d'un excentrique en forme de doigt 40. Le doigt 40 est fixé à la périphérie de la partie frontale de l'axe 38 et il est amené à se déplacer dans une fente oblongue horizontale 42 pratiquée dans le boîtier 20 ou dans une autre pièce ou partie fixe de l'appareil.According to this embodiment, one of the pinions 16 of the transmission system or gear train 10 has an elongated axis 38 provided at its end opposite to that secured to the pinion 16, with a finger-shaped eccentric 40. The finger 40 is fixed to the periphery of the front part of the axis 38 and it is caused to move in a horizontal oblong slot 42 formed in the housing 20 or in another part or fixed part of the device.
En fonctionnement, le moteur 12 entraîne le rouleau 1 par le train d'engrenages 10. Le pignon 16 est mis en mouvement et entraîne l'axe 38, respectivement le doigt 40 en mouvement dans la fente 42. Ainsi, le mouvement de rotation de l'excentrique 40 est transformé en un mouvement de translation verticale de va-et-vient du cadre 25, et donc de tout l'ensemble qu'il supporte. Les vibrations en translation de l'ensemble 27 sont transmises à la peau, dans la zone à épiler, par la tête d'épilation vibrante 1 , réduisant ainsi la douleur.In operation, the motor 12 drives the roller 1 by the gear train 10. The pinion 16 is set in motion and drives the axis 38, respectively the finger 40 in motion in the slot 42. Thus, the rotational movement of the eccentric 40 is transformed into a vertical translational movement back and forth of the frame 25, and therefore of the whole assembly that it supports. The vibrations in translation of the assembly 27 are transmitted to the skin, in the area to be epilated, by the vibrating epilation head 1, thus reducing the pain.
Le pignon 16 tourne à une vitesse d'environ 7200 rot/min, ce qui provoque des vibrations à une fréquence d'environ 120 Hz, dans une direction perpendiculaire à la peau de la tête d'épilation 1.The pinion 16 rotates at a speed of approximately 7200 rot / min, which causes vibrations at a frequency of approximately 120 Hz, in a direction perpendicular to the skin of the epilation head 1.
D'autres variantes ou modifications constructives peuvent être envisagées sans sortir du cadre de la présente invention. Ainsi, le cadre suspendu 25 peut être guidé dans son mouvement vertical sur des rails montés fixes dans le boîtier 20. Ceci assurerait des mouvements en vibration sensiblement en une seule direction. Avantageusement, les variantes présentées pourraient être complétées par des moyens d'amortissement supplémentaires des vibrations transmises au boîtier 20 de l'appareil.Other variants or constructive modifications can be envisaged without departing from the scope of the present invention. Thus, the suspended frame 25 can be guided in its vertical movement on rails mounted fixed in the housing 20. This would ensure vibrational movements substantially in one direction. Advantageously, the variants presented could be supplemented by means of additional damping of the vibrations transmitted to the housing 20 of the device.
Ainsi, on pourrait envisager d'agencer à l'extérieur de ce même boîtier 20 un boîtier extérieur, ayant sensiblement la même forme que le premier, un matériau absorbeur d'énergie étant dans ce cas intercalé entre les deux boîtiers. Le matériau introduit entre les deux boîtiers constitue un revêtement intermédiaire amortissant les vibrations mécaniques produites dans l'ensemble suspendu 27, un tel matériau étant notamment un matériau à base de mousse, un matériau viscoélastique ou tout autre matériau ayant des propriétés similaires à ceux-ci.Thus, it could be envisaged to arrange outside of this same box 20 an external box, having substantially the same shape as the first, an energy absorbing material being in this case interposed between the two boxes. The material introduced between the two housings constitutes an intermediate coating damping the mechanical vibrations produced in the suspended assembly 27, such a material being in particular a foam-based material, a viscoelastic material or any other material having properties similar to these. .
On pourrait également envisager un autre moyen d'amortissement des vibrations produites dans le système suspendu par rapport au boîtier de l'appareil par l'agencement d'un balourd dans le boîtier, balourd qui fonctionnerait en opposition de phase par rapport au premier balourd supporté par le système suspendu. Un exemple d'une telle construction, non représentée aux figures annexées, mais basée notamment sur le mode de réalisation illustré à la figure 1 , comporte un axe solidaire du boîtier 20, axe sur lequel est monté un balourd de même ordre de grandeur que le balourd 18 supporté par le pignon 16, mais monté à 180° par rapport à celui-ci. Dans ce cas, ce deuxième balourd est entraîné en rotation par l'axe du balourd 18, respectivement du pignon 16, via un couplage élastique. Le deuxième balourd tourne donc à la même vitesse que le balourd 18, sa masse et son rayon au centre de gravité étant ajustés de manière à neutraliser les vibrations dans le boîtier 20. Ainsi, ce deuxième balourd induit dans le boîtier 20 des vibrations de sens contraire à celles reçues (produites par le balourd 18 dans l'ensemble suspendu 27), en compensant ainsi l'effet des vibrations dans le boîtier. One could also consider another means of damping the vibrations produced in the system suspended relative to the housing of the device by the arrangement of an unbalance in the housing, unbalance which would operate in phase opposition with respect to the first supported unbalance by the suspended system. An example of such a construction, not shown in the appended figures, but based in particular on the embodiment illustrated in FIG. 1, comprises an axis integral with the housing 20, axis on which is mounted an unbalance of the same order of magnitude as the unbalance 18 supported by the pinion 16, but mounted at 180 ° relative to the latter. In this case, this second unbalance is rotated by the axis of the unbalance 18, respectively of the pinion 16, via an elastic coupling. The second unbalance therefore rotates at the same speed as the unbalance 18, its mass and its radius at the center of gravity being adjusted so as to neutralize the vibrations in the housing 20. Thus, this second unbalance induces in the housing 20 vibrations of sense contrary to those received (produced by the unbalance 18 in the suspended assembly 27), thereby compensating for the effect of vibrations in the housing.

Claims

B.0409R1REVENDICATIONS B.0409R1REVENDICATIONS
1. Appareil à épiler pour éliminer les poils corporels comportant un rouleau (1) monté rotatif dans un boîtier (20) destiné à être tenu à la main, ledit rouleau comportant au moins deux pinces (7,8) destinées à serrer et arracher les poils, le rouleau (1) étant susceptible d'être entraîné en rotation par un moteur électrique (12) via un système de transmission (10) ; le moteur (12), le système de transmission (10) et le rouleau (1) formant un ensemble (27) monté dans le boîtier (20) de l'appareil par l'intermédiaire des moyens élastiques (24), caractérisé en ce que l'ensemble (27) comporte au moins une pièce (18, 36, 40) montée de telle sorte que, lorsque mise en mouvement à partir du moteur, elle génère des vibrations dans ledit ensemble (27) jusque dans le rouleau rotatif (1).1. Hair removal device for removing body hair comprising a roller (1) rotatably mounted in a housing (20) intended to be held in the hand, said roller comprising at least two pliers (7,8) intended to clamp and pluck the bristles, the roller (1) being capable of being rotated by an electric motor (12) via a transmission system (10); the motor (12), the transmission system (10) and the roller (1) forming an assembly (27) mounted in the housing (20) of the device by means of elastic means (24), characterized in that that the assembly (27) comprises at least one part (18, 36, 40) mounted so that, when set in motion from the motor, it generates vibrations in said assembly (27) as far as in the rotary roller ( 1).
2. Appareil selon la revendication 1 , caractérisé en ce que la fréquence des vibrations produites dans le rouleau rotatif (1 ) est supérieure à 50 Hz.2. Apparatus according to claim 1, characterized in that the frequency of the vibrations produced in the rotary roller (1) is greater than 50 Hz.
3. Appareil selon l'une des revendications précédentes, caractérisé en ce que les moyens élastiques (24) de montage de l'ensemble (27) dans le boîtier (20) et la pièce (18,36,40) en mouvement sont déterminés de telle sorte que l'amplitude des vibrations soit comprise entre 0,1 et 1 mm.3. Apparatus according to one of the preceding claims, characterized in that the elastic means (24) for mounting the assembly (27) in the housing (20) and the moving part (18,36,40) are determined so that the amplitude of the vibrations is between 0.1 and 1 mm.
4. Appareil selon l'une des revendications précédentes, caractérisé en ce que la pièce en mouvement (18, 36, 40) génère des vibrations du rouleau rotatif (1 ) présentant une composante dans une direction sensiblement perpendiculaire à la peau.4. Apparatus according to one of the preceding claims, characterized in that the moving part (18, 36, 40) generates vibrations of the rotary roller (1) having a component in a direction substantially perpendicular to the skin.
5. Appareil selon l'une des revendications précédentes, caractérisé en ce que la pièce en mouvement (18, 36) génère des vibrations en rotation dans le rouleau rotatif (1). 5. Apparatus according to one of the preceding claims, characterized in that the moving part (18, 36) generates vibrations in rotation in the rotary roller (1).
6. Appareil selon la revendication 5, caractérisé en ce que la pièce en mouvement (18) est un balourd monté fixe sur un des pignons (16) du système de transmission (10).6. Apparatus according to claim 5, characterized in that the moving part (18) is an unbalance mounted fixed on one of the pinions (16) of the transmission system (10).
7. Appareil selon la revendication 6, caractérisé en ce que la fréquence de vibration du rouleau rotatif (1 ) est d'environ 120 Hz.7. Apparatus according to claim 6, characterized in that the vibration frequency of the rotary roller (1) is about 120 Hz.
8. Appareil selon la revendication 5, caractérisé en ce que la pièce en mouvement (18) est un balourd monté fixe sur l'une des extrémités de l'axe (13) du moteur d'entraînement (12).8. Apparatus according to claim 5, characterized in that the moving part (18) is an unbalance mounted fixed on one of the ends of the axis (13) of the drive motor (12).
9. Appareil selon la revendication 5, caractérisé en ce que la pièce en mouvement (36) est une masselotte supportée par le rouleau rotatif (1).9. Apparatus according to claim 5, characterized in that the moving part (36) is a counterweight supported by the rotary roller (1).
10. Appareil selon l'une des revendications 1 à 3, caractérisé en ce que la pièce en mouvement (40) génère des vibrations en translation dans le rouleau rotatif (1 ).10. Apparatus according to one of claims 1 to 3, characterized in that the moving part (40) generates vibrations in translation in the rotary roller (1).
11. Appareil selon la revendication 10, caractérisé en ce que la pièce en mouvement (40) est un excentrique dont une extrémité est montée fixe sur l'axe (38) d'un des pignons (16) du système de transmission et l'autre extrémité coulisse dans une fente longitudinale (42) du boîtier (20) de l'appareil.11. Apparatus according to claim 10, characterized in that the moving part (40) is an eccentric, one end of which is fixedly mounted on the axis (38) of one of the pinions (16) of the transmission system and the another end slides in a longitudinal slot (42) of the housing (20) of the device.
12. Appareil selon l'une des revendications précédentes, caractérisé en ce que les moyens élastiques (24) sont constitués par des ressorts.12. Apparatus according to one of the preceding claims, characterized in that the elastic means (24) are constituted by springs.
13. Appareil selon l'une des revendications précédentes, caractérisé en ce que le moteur d'entraînement (12), le système de transmission (10) et le rouleau rotatif (1 ) sont montés fixes dans un cadre (25) qui est fixé au boîtier de l'appareil via un dispositif amortisseur (30).13. Apparatus according to one of the preceding claims, characterized in that the drive motor (12), the transmission system (10) and the rotary roller (1) are fixedly mounted in a frame (25) which is fixed to the device housing via a damping device (30).
14. Appareil selon l'une des revendications précédentes, caractérisé en ce que la vitesse du moteur d'entraînement (12) est réglable de manière à ajuster la fréquence des vibrations dans une gamme de fréquences comprise entre 50 et 300 Hz. 14. Apparatus according to one of the preceding claims, characterized in that the speed of the drive motor (12) is adjustable so as to adjust the frequency of the vibrations in a frequency range between 50 and 300 Hz.
EP00949616A 1999-07-05 2000-07-03 Hair remover with vibrating rotary roller Expired - Lifetime EP1191858B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9908885A FR2795927B1 (en) 1999-07-05 1999-07-05 HAIR REMOVAL DEVICE WITH ROTARY VIBRATING ROLLER
FR9908885 1999-07-05
PCT/FR2000/001894 WO2001001812A1 (en) 1999-07-05 2000-07-03 Hair remover with vibrating rotary roller

Publications (2)

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EP1191858A1 true EP1191858A1 (en) 2002-04-03
EP1191858B1 EP1191858B1 (en) 2005-06-08

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AT (1) ATE297143T1 (en)
AU (1) AU6291700A (en)
DE (1) DE60020704T2 (en)
ES (1) ES2241632T3 (en)
FR (1) FR2795927B1 (en)
PT (1) PT1191858E (en)
RU (1) RU2242155C2 (en)
TR (1) TR200200096T2 (en)
WO (1) WO2001001812A1 (en)

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Publication number Priority date Publication date Assignee Title
DE19932884C1 (en) * 1999-07-16 2000-08-10 Braun Gmbh Depilation apparatus for plucking hair out of human skin comprises housing in which depilatory head incorporating plucking components and activated by a drive device is located
TWM243083U (en) * 1999-07-27 2004-09-11 Matsushita Electric Works Ltd Hand-held epilating device
DE102006027527A1 (en) * 2006-06-14 2007-12-27 Braun Gmbh Hair removal device

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NL9002770A (en) 1990-12-17 1992-07-16 Philips Nv METHOD FOR EPILATING.
FR2709933B1 (en) 1993-09-15 1996-05-15 Seb Sa Mechanical hair removal device by pulling hairs from the skin.
FR2717054B1 (en) 1994-03-10 1996-06-14 Seb Sa Apparatus for depilating human skin.
DE4408809C1 (en) 1994-03-16 1995-06-14 Braun Ag Depilator with hand-held housing containing motor
WO1996003063A1 (en) * 1994-07-22 1996-02-08 Daniels S.P.A. Hair remover
DE19521585A1 (en) 1995-06-14 1996-12-19 Braun Ag Device for plucking hair from human skin
DE69631073T2 (en) 1995-08-28 2004-09-09 Matsushita Electric Works, Ltd., Kadoma hand-held depilating
US6165182A (en) 1995-11-28 2000-12-26 U.S. Philips Corporation Depilation apparatus with vibration member
FR2745992B1 (en) * 1996-03-13 1998-08-28 MECHANICAL PAIN REMOVAL DEVICE AND RELATED METHOD
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AU6291700A (en) 2001-01-22
DE60020704D1 (en) 2005-07-14
FR2795927B1 (en) 2001-09-14
TR200200096T2 (en) 2002-06-21
DE60020704T2 (en) 2006-03-16
WO2001001812A1 (en) 2001-01-11
ES2241632T3 (en) 2005-11-01
RU2242155C2 (en) 2004-12-20
EP1191858B1 (en) 2005-06-08
PT1191858E (en) 2005-10-31
ATE297143T1 (en) 2005-06-15
FR2795927A1 (en) 2001-01-12

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