EP0328426B1 - Hair-plucking apparatus - Google Patents

Hair-plucking apparatus Download PDF

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Publication number
EP0328426B1
EP0328426B1 EP89400041A EP89400041A EP0328426B1 EP 0328426 B1 EP0328426 B1 EP 0328426B1 EP 89400041 A EP89400041 A EP 89400041A EP 89400041 A EP89400041 A EP 89400041A EP 0328426 B1 EP0328426 B1 EP 0328426B1
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EP
European Patent Office
Prior art keywords
blades
epilating
bars
drive shaft
blade
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Expired - Lifetime
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EP89400041A
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German (de)
French (fr)
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EP0328426A2 (en
EP0328426A3 (en
Inventor
Jacques Demeester
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Braun GmbH
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Braun GmbH
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Application filed by Braun GmbH filed Critical Braun GmbH
Priority to EP94102675A priority Critical patent/EP0605396B1/en
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Publication of EP0328426A3 publication Critical patent/EP0328426A3/en
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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0023Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements
    • A45D26/0028Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements with rotating discs or blades

Definitions

  • the present invention relates to small depilatory devices capable of being held in the hand in order to remove excess hair.
  • the invention relates to devices of the type described in patent FR 2 556 939.
  • This device comprises, for pulling out the hairs to be removed, a rotary depilation roller formed by a series of blades and / or thin discs arranged side by side on a rotary drive shaft in a housing capable of being held in the hand and behind an opening thereof, and means ensuring periodically the nipping of the bristles engaged between these blades and / or these discs. The pinched hairs are then pulled out due to the rotation of the epilation roller.
  • the nipping of the bristles is carried out against one of the faces of the rotating discs, and this by the blades of a movable comb which are nested between these discs.
  • Appropriate means are then provided for periodically ensuring the axial displacement of this comb in order to apply the pinching blades thereof against the rotating discs to trap the hairs to be pulled out.
  • the discs are flexible, the pinching of the hairs to be plucked is carried out between two successive discs by the deformation of all of these discs under the effect thrust members provided at each end of the epilating roller.
  • the arrangement is then such that the tightening of all of the discs occur at least once per turn of the roller.
  • such a system can only work if the number of discs, or the spacing between two successive discs, is very small, which is an unfavorable factor for the engagement of the bristles in the epilating roller. This goes against the efficiency of the device.
  • German patent DE 1,121,291 an apparatus for plucking poultry feathers and down.
  • This device has two holding jaws articulated one on the other in a pivotable manner and whose lower jaw has a plurality of wedge-shaped guide parts in which is mounted a drive shaft provided with several pairs of integral discs in rotation of said shaft, but capable of being pivoted relative to the latter.
  • the discs are pivoted once and for all for each pair of discs by a pair of pressure rollers mounted on the upper jaw and housed in the gap remaining between two discs of the same pair of discs in the upper zone of that -ci, so that the edges of the discs are in permanent contact at the lower point thereof, the neighboring guide parts limiting the degree of inclination of the discs and their coming into contact with the skin of poultry.
  • the discs do not ensure the nipping of the feathers by successive reconciliation and separation of the edges of the discs in the manner of pliers, but by maintaining the discs of a pair in an inclined position. towards each other so as to establish permanent contact at the lower points of their edges and by the frictional entrainment of the feathers in the interval remaining between the two discs and gradually narrowing to the point of contact between the discs a pair of discs.
  • French patent FR 788 130 describes a machine for plucking poultry and more particularly a rotary roller formed by a series of rigid discs and clamps pivotally mounted between two neighboring discs on special rings which serve both to hold each disc separated from the neighboring discs and to imprison the middle part of a clamp while leaving it the freedom to pivot in the direction of one or the other neighboring disc, the clamps of the same row of clamps parallel to the axis of the discs pivoting simultaneously in the same direction.
  • this rotary roller is provided with a cake with flange; the two flanges serving as attachment to several spacers which enclose the discs and rings arranged between the flanges.
  • each cake is keyed onto a drive shaft and has a plurality of bores aligned with those of the other cake, these bores being either crossed by pushers or provided with return springs acting on one end free of a corresponding pusher which controls the pivoting in one direction or the other of the same row of pliers parallel to the drive shaft.
  • each pusher is caused, on the one hand, in the direction of opening of the pliers, position in which the periphery of the pliers is separated from that of a neighboring disc, by a cam acting on the end of pusher protruding from one of the cakes, and, on the other hand, in the direction of clamping of the pliers, position in which the periphery of the pliers is applied against that of the neighboring disc, by the return springs housed in the bores of the another meal.
  • the known rotary roller comprises in the same interval, between two discs, several pliers distributed uniformly on the same circle without touching, the pliers arranged in the same interval cooperating alternately one with one and the next with l 'other of the two discs delimiting said interval.
  • the present invention aims to achieve an apparatus of the type mentioned at the start, but which is designed in a different way so that the pinching of the hairs to be plucked is carried out between two successive discs or blades according to a process ensuring perfect efficiency. of this pinching and without encountering the drawbacks exposed above.
  • the invention relates to a hair removal device which comprises a rotary depilation roller formed by a series of blades arranged side by side on a rotary drive shaft in a housing capable of being held by hand and behind an opening thereof, and means ensuring periodically the nipping of the bristles engaged between these blades.
  • This device is characterized in that these blades are mounted one after the other on said drive shaft so as to be able to pivot each around a separate axis perpendicular to this shaft, and that mechanical means are provided actuating these blades, capable of causing, at least once per turn of the roller, the pivoting of these blades, one in one direction and the next in the opposite direction, so as to ensure the clamping of the blades by group of two on their respective parts then being at the location of the work surface, in order to pinch the hairs engaged between these blades to pluck them.
  • each blade of the rotary epilation roller has at its periphery one or more protruding parts constituting the pinching zones of these blades, these zones being arranged in the same alignment on the rotary roller.
  • This particular characteristic makes it possible to obtain greater efficiency of the device than with blades formed by discs of circular contour, since there are thus steps between the protruding pinching zones, which further facilitates the engagement of the hairs inside the hair removal roller ..
  • the rotary shaft for driving the epilation blades has a polygonal section, for example square, and these blades have a central opening also of polygonal section inside which is engaged this shaft, and, in two diametrically opposite zones, the edge of the central opening of each epilation blade is engaged in a transverse retaining groove inside which it has freedom of movement allowing it to pivot around an axis perpendicular to the drive shaft.
  • the mechanical means ensuring the clamping of the epilation blades comprise at least one pair of bars and control members for these bars mounted sliding against a face of the rotary drive shaft, parallel to the axis thereof, and having transverse grooves inside each of which is engaged a tooth provided on the edge of the central opening of one or the other blade of a pair of epilation blades, so that all the blades are coupled alternately with one and the other of these two bars sliding elements capable of being actuated by the control members so as to move in opposite directions to one another in order to rotate in opposite direction two successive depilation blades and to ensure the tightening of the respective parts of these two blades at the location of the work surface.
  • the device shown comprises a small box 1 capable of being held in the hand and inside which are contained all the mechanical organs of this device.
  • This housing has an elongated shape and one of its ends is closed by a cover 2 constituting in a way the frame of the working head or epilation head of the device. Thus, this epilation head is removable relative to the housing 1.
  • the cover 2 has an elongated opening 3 behind which is located a rotary depilation roller 4.
  • This is formed by a series of thin blades arranged one after the other on a rotary shaft 6, and designated alternately by references 5a and 5b.
  • the drive of this rotating shaft is provided by a small electric motor 7 by means of a reduction gear by pinions 8, or other mechanical system making it possible to obtain an optimal speed.
  • This motor is powered by an electric battery 9, also housed inside the housing 1.
  • the motor shaft 7 is equipped with a turbine rotor 10 so as to create an overpressure inside the housing 1 in order to oppose the penetration of the torn hairs, through the orifice 11 for passage of one of the drive pinions of the rotary shaft 6.
  • the rotary shaft 6 of the epilation head is disposed between two flanges 12 integral with the cover 2 and which comprise the rotational bearings of the ends of this shaft. As it appears in Figures 5 and 7, it has a square section. Against two opposite faces of this shaft are arranged two flat strips 13 intended to serve as members for holding the epilation blades 5a, 5b. against each of the two other faces of this tree are placed two bars 14a, 14b, or respectively 15a, 15b, which are slidably mounted parallel to the axis of the tree 6. As will be explained below, these bars constitute the actuating members of the epilation blades 5a, 5b to periodically cause the clamping zone to be tightened.
  • each of them does not have the shape of discs of circular contour.
  • each of them comprises at its periphery two projecting parts 16 arranged in diametrically opposite directions and which are intended to constitute the nip zones of the corresponding blade.
  • each blade may have a circular or other contour, this contour being determined so as to facilitate the engagement of the bristles to be torn between the blades.
  • These various blades have a central opening 17 of polygonal section whose shape is such that it allows the passage of both the rotary shaft 6 and the various strips 13 and bars 14a, 14b, 15a, 15b.
  • the parts of the internal edge of this opening 17, which are located opposite the strips 13, are engaged inside grooves transverse 18 formed on the outer face of these strips. This ensures that the various blades 5 are held and the desired spacing between them is maintained.
  • the grooves 18 widen on either side of their median part at the place where a transverse rib 19 is provided on each wall.
  • the sliding bars 14a, 14b and 15a, 15b of each pair have for their part a series of transverse grooves 20. However in each pair of such bars, there is a shift between the grooves of the one and the other corresponding bars.
  • the blades 5 they have, on the edge of their central opening 17, a projecting tooth 21a for the blades 5a and 21b for the blades 5b.
  • the teeth 21a of the blades 5a are engaged in the grooves 20 of the two bars 14a and 15a.
  • the teeth 21b of the blades 5b they are engaged in the grooves 20 of the bars 14b and 15b.
  • the epilation blades are coupled alternately with one and with the other of the two sliding bars of the same pair.
  • Each sliding bar 14a, 14b or 15a, 15b carries an operating head 22a or 22b, and in each pair of bars 14a, 14b or 15a, 15b, the head for example 22a of one for example 14a of the two bars 14a, 14b is located at one end and the head for example 22b of the other bar for example 14b at the opposite end.
  • the head for example 22a of one for example 14a of the two bars 14a, 14b is located at one end and the head for example 22b of the other bar for example 14b at the opposite end.
  • two rollers 23a and 23b which are intended to apply pressure respectively to the operating head 22a of a bar 14a or 15a and on the operating head 22b of a bar 15b or 14b.
  • springs 24 provided at the ends of the sliding bars (14a, 14b; 15a, 15b) tend to normally maintain these in positions normally ensuring the maintenance of a spacing between the different blades 5a and 5b.
  • springs 24 provided at the ends of the bars as is the case in the example shown in Figure 6, it is possible to provide a single spring arranged in the middle.
  • the arrangement is such that the clamping zones 16 are tightened while they are located opposite the opening 3 of the cover 2 of the epilation head.
  • the axes X-X 'of pivoting of the epilation blades are then arranged in a plane substantially parallel to the tangent plane of the working surface of the rotary roller in contact with the skin. However, there may be an angular offset in one direction or the other.
  • the diagram in FIG. 8 illustrates the different successive phases of bringing together and spacing the pinching zones 16 of the epilation blades.
  • the reference F indicates the closing phase of these pinching zones
  • the reference P the actual tightening phase
  • the reference O the opening phase.
  • the hairs to be plucked engage between the projecting parts 16 of the epilation blades during phase F before they are tightened.
  • these hairs are pinched between the projecting zones of two successive blades during phase P and during this phase the rotary movement of the epilation disc 4 has the effect of plucking the pinched hairs.
  • these are ejected by centrifugal force during the opening phase of the pinching zones 16 of the epilation blades.
  • the bars control 14a, 14b and 15a, 15b can have an indirect action, as provided in the diagram of Figure 10.
  • the rollers 23a, 23b are arranged in a position diametrically opposite with respect to the axis YY ′ Of the rotary shaft 6. The arrangement is then such that the control bars act in the opposite direction, according to the arrows F2 and F3, on two successive blades 5a and 5b so as to separate their corresponding parts. This causes these blades to pivot as before so that their pinching parts 16, located on the opposite side, are pressed against each other. The operation is thus the same as in the previous case.
  • the rollers 23a and 23b may be replaced by cams or any other suitable member capable of causing the displacement of the pivoting control strips 14a, 14b and 15a, 15b each time these arrive opposite these members.
  • the angular position of these cams or control rollers is determined so that the clamping zones of the epilation blades are clamped at the right time depending on the ergonomic position of the device relative to the skin to be depilated. . It is possible to provide only one pinching of the epilation blades per rotation. Conversely, however, it is also possible to provide for a number of pinches greater than two during each revolution by using a greater number of pairs of control strips.
  • the arrangement can be such that the first pair of bars acts on the discs located in positions 1 and 2, etc. , while the second pair acts on the discs in positions 2 and 3, etc.
  • the tear-off blades can have a contour other than the blades 5a and 5b illustrated in FIG. 11 and which are provided in the apparatus shown in FIGS. 1 to 7.
  • FIG. 12 represents a variant in which the gripping parts 16c of the corresponding blades 5c have a shape different from that provided previously. These projecting parts are separated from each other by recessed zones 26c intended to promote the engagement of the plucked hairs.
  • FIG. 13 shows a variant in which the corresponding blades 5d have a single projecting portion 16d of pinching on either side of which two recessed zones 26d are provided.
  • the epilation head is designed to ensure only one pinching per rotation.
  • FIG. 14 shows another variant also designed for the case of a single pinch per revolution of rotation.
  • the corresponding blades 5e have a circular outline substantially on half of their periphery and two steps 26e on the rest of their periphery.
  • a single pinching zone 16e is then provided at an intermediate point of their length of the circular part.
  • FIG. 15 represents yet another variant in which the corresponding blades 5f comprise three distinct pinching zones 16f.
  • the recessed parts, provided between the nipping protruding parts, are intended to facilitate the engagement of bristles to be pulled out inside the hair removal roller. These parts are also intended to create an effect of combing of the hairs which are thus entrained oriented parallel to the blades, which is also such as to facilitate the engagement of the hairs between the latter.
  • the projecting parts in contact with the skin can be of greater length than that of the actual nipping area (see for example the case of the variants according to FIGS. 12, 13 and 14). These parts in contact with the skin then serve to protect the latter.
  • the main advantage of the device according to the invention lies in the fact that the pinching of the epilation blades is carried out by pivoting of two adjacent blades towards each other and not not by deformation and compression of all of the blades of the epilation roller as is the case in the previous device mentioned above.
  • this method of pinching the epilation blades by pivoting has the advantage that it is possible to provide a relatively large initial spacing between the different blades, which facilitates the penetration of the hairs inside the epilation roller.
  • this solution has the advantage of being much simpler. than that provided in the aforementioned apparatus and in which there was a movable comb ensuring the nipping of the bristles against the blades of the rotary roller. For these various reasons, the efficiency and the reliability of the present device are considerably improved compared to previous devices of the same kind.

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  • Dry Shavers And Clippers (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Massaging Devices (AREA)
  • Brushes (AREA)
  • Surgical Instruments (AREA)
  • Cosmetics (AREA)
  • Harvester Elements (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Scissors And Nippers (AREA)

Abstract

Hair plucking apparatus comprising a rotating plucking roller formed by a series of blades disposed side by side. The blades (5a, 5b) of this roller are mounted in a movable manner on their drive shaft (6) in order to be able to pivot about an axis perpendicular to this shaft. It is furthermore provided with mechanical means for operating these blades, which are capable of causing, at least once per revolution of the roller (4), the pivoting of these blades (5a, 5b), one in one direction and the following one in the opposite direction, each about a separate axis (x.x') perpendicular to the drive shaft. In this way the tightening of two adjacent blades against each other is obtained at the working surface and consequently the gripping of hairs between these blades in order to pluck them. <IMAGE>

Description

La présente invention est relative aux petits appareils à épiler susceptibles d'être tenus à la main pour procéder à l'élimination des poils superflus.The present invention relates to small depilatory devices capable of being held in the hand in order to remove excess hair.

Plus précisément, l'invention concerne les appareils du type de celui décrit dans le brevet FR 2 556 939. Cet appareil comporte, pour l'arrachage des poils à éliminer, un rouleau rotatif d'épilation formé par une série de lames et/ou de disques minces disposés côte à côte sur un arbre rotatif d'entraînement dans un boîtier susceptible d'être tenu à la main et derrière une ouverture de celui-ci, et des moyens assurant périodiquement le pincement des poils engagés entre ces lames et/ou ces disques. Les poils pincés se trouvent ensuite arrachés du fait de la rotation du rouleau d'épilation.More specifically, the invention relates to devices of the type described in patent FR 2 556 939. This device comprises, for pulling out the hairs to be removed, a rotary depilation roller formed by a series of blades and / or thin discs arranged side by side on a rotary drive shaft in a housing capable of being held in the hand and behind an opening thereof, and means ensuring periodically the nipping of the bristles engaged between these blades and / or these discs. The pinched hairs are then pulled out due to the rotation of the epilation roller.

Dans l'une des formes de réalisation décrites dans ce brevet et comprenant une série de lames et de disques, le pincement des poils est réalisé contre l'une des faces des disques rotatifs, et ce par les lames d'un peigne mobile qui sont imbriquées entre ces disques. Des moyens appropriés sont alors prévus pour assurer périodiquement le déplacement axial de ce peigne afin d'appliquer les lames de pincement de celui-ci contre les disques rotatifs pour emprisonner les poils à arracher.In one of the embodiments described in this patent and comprising a series of blades and discs, the nipping of the bristles is carried out against one of the faces of the rotating discs, and this by the blades of a movable comb which are nested between these discs. Appropriate means are then provided for periodically ensuring the axial displacement of this comb in order to apply the pinching blades thereof against the rotating discs to trap the hairs to be pulled out.

Toutefois, avec un tel système, il est difficile d'obtenir une régularité de la force de pincement, d'un disque à l'autre. En effet, cette régularité dépend de la précision de deux éléments : l'empilage des disques et des lames du peigne, dont les intervalles doivent être rigoureusement égaux entre eux.However, with such a system, it is difficult to obtain regularity of the gripping force, from one disc to another. Indeed, this regularity depends on the precision of two elements: the stacking of the discs and the blades of the comb, the intervals of which must be strictly equal to each other.

Dans une autre forme de réalisation décrite dans le même brevet et comprenant une série de disques minces, les disques sont souples, le pincement des poils à arracher est réalisé entre deux disques successifs par la déformation de l'ensemble de ces disques sous l'effet d'organes de poussée prévus à chaque extrémité du rouleau d'épilation. L'agencement est alors tel que le serrage de l'ensemble des disques se produise au moins une fois par tour de rotation du rouleau. Cependant une tel système ne peut fonctionner que si le nombre de disques, ou l'écartement entre deux disques successifs, est très réduit, ce qui est un facteur défavorable pour l'engagement des poils dans le rouleau d'épilation. Ceci va à l'encontre de l'efficacité de l'appareil.In another embodiment described in the same patent and comprising a series of thin discs, the discs are flexible, the pinching of the hairs to be plucked is carried out between two successive discs by the deformation of all of these discs under the effect thrust members provided at each end of the epilating roller. The arrangement is then such that the tightening of all of the discs occur at least once per turn of the roller. However, such a system can only work if the number of discs, or the spacing between two successive discs, is very small, which is an unfavorable factor for the engagement of the bristles in the epilating roller. This goes against the efficiency of the device.

Par le brevet allemand DE 1 121 291, est connu un appareil pour arracher les plumes et duvets de volailles. Cet appareil présente deux mâchoires de maintien articulées l'une sur l'autre de façon pivotable et dont la mâchoire inférieure présente une pluralité de pièces de guidage en forme de coin dans lesquelles est monté un arbre d'entraînement muni de plusieurs paires de disques solidaires en rotation dudit arbre, mais susceptibles d'être pivotés par rapport à ce dernier. Le pivotement des disques est réalisé une fois pour toutes pour chaque paire de disques par une paire de galets de pression montée sur la mâchoire supérieure et logés dans l'intervalle subsistant entre deux disques d'une même paire de disques dans la zone supérieure de celle-ci, de sorte que les bords des disques soient en contact permanent au point inférieur de ceux-ci, les pièces de guidage voisines limitant le degré d'inclinaison des disques ainsi que leur venue en contact avec la peau des volailles. Dans ce cas, les disques n'assurent pas le pincement des plumes par un rapprochement et écartement successifs et répétés des bords des disques à la manière d'une pince, mais par le maintien des disques d'une paire dans une position inclinée l'une vers l'autre de façon à établir un contact permanent aux points inférieurs de leurs bords et par l'entraînement frictionnel des plumes dans l'intervalle subsistant entre les deux disques et se rétrécissant progressivement jusqu'au point de contact entre les disques d'une paire de disques.By the German patent DE 1,121,291, an apparatus is known for plucking poultry feathers and down. This device has two holding jaws articulated one on the other in a pivotable manner and whose lower jaw has a plurality of wedge-shaped guide parts in which is mounted a drive shaft provided with several pairs of integral discs in rotation of said shaft, but capable of being pivoted relative to the latter. The discs are pivoted once and for all for each pair of discs by a pair of pressure rollers mounted on the upper jaw and housed in the gap remaining between two discs of the same pair of discs in the upper zone of that -ci, so that the edges of the discs are in permanent contact at the lower point thereof, the neighboring guide parts limiting the degree of inclination of the discs and their coming into contact with the skin of poultry. In this case, the discs do not ensure the nipping of the feathers by successive reconciliation and separation of the edges of the discs in the manner of pliers, but by maintaining the discs of a pair in an inclined position. towards each other so as to establish permanent contact at the lower points of their edges and by the frictional entrainment of the feathers in the interval remaining between the two discs and gradually narrowing to the point of contact between the discs a pair of discs.

Le brevet français FR 788 130 décrit une machine à plumer la volaille et plus particulièrement un rouleau rotatif formé par une série de disques rigides et de pinces montées de façon pivotable entre deux disques voisins sur des bagues spéciales qui servent à la fois à tenir chaque disque écarté des disques voisins et à emprisonner la partie médiane d'une pince tout en lui laissant la liberté de pivoter en direction de l'un ou l'autre disque voisin, les pinces d'une même rangée de pinces parallèle à l'axe des disques pivotant simultanément dans le même sens. A chacune de ses deux extrémités, ce rouleau rotatif est muni d'un tourteau avec collerette ; les deux collerettes servant de fixation à plusieurs entretoises qui enserrent les disques et bagues disposés entre les collerettes. La partie centrale de chaque tourteau est clavetée sur un arbre d'entraînement et comporte une pluralité d'alésages alignés avec ceux de l'autre tourteau, ces alésages étant, soit traversés par des poussoirs, soit munis de ressorts de rappel agissant sur une extrémité libre d'un poussoir correspondant qui commande le pivotement dans un sens ou dans l'autre d'une même rangée de pinces parallèle à l'arbre d'entraînement. Le déplacement axial de chaque poussoir est provoqué, d'une part, dans le sens de l'ouverture des pinces, position dans laquelle la périphérie des pinces est écartée de celle d'un disque voisin, par une came agissant sur l'extrémité de poussoir dépassant de l'un des tourteaux, et, d'autre part, dans le sens de serrage des pinces, position dans laquelle la périphérie des pinces est appliquée contre celle du disque voisin, par les ressorts de rappel logés dans les alésages de l'autre tourteau.French patent FR 788 130 describes a machine for plucking poultry and more particularly a rotary roller formed by a series of rigid discs and clamps pivotally mounted between two neighboring discs on special rings which serve both to hold each disc separated from the neighboring discs and to imprison the middle part of a clamp while leaving it the freedom to pivot in the direction of one or the other neighboring disc, the clamps of the same row of clamps parallel to the axis of the discs pivoting simultaneously in the same direction. At each of its two ends, this rotary roller is provided with a cake with flange; the two flanges serving as attachment to several spacers which enclose the discs and rings arranged between the flanges. The central part of each cake is keyed onto a drive shaft and has a plurality of bores aligned with those of the other cake, these bores being either crossed by pushers or provided with return springs acting on one end free of a corresponding pusher which controls the pivoting in one direction or the other of the same row of pliers parallel to the drive shaft. The axial displacement of each pusher is caused, on the one hand, in the direction of opening of the pliers, position in which the periphery of the pliers is separated from that of a neighboring disc, by a cam acting on the end of pusher protruding from one of the cakes, and, on the other hand, in the direction of clamping of the pliers, position in which the periphery of the pliers is applied against that of the neighboring disc, by the return springs housed in the bores of the another meal.

En outre, le rouleau rotatif connu comporte dans un même intervalle, entre deux disques, plusieurs pinces réparties uniformément sur un même cercle sans se toucher, les pinces disposées dans le même intervalle coopérant alternativement l'une avec l'un et la suivante avec l'autre des deux disques délimitant ledit intervalle.In addition, the known rotary roller comprises in the same interval, between two discs, several pliers distributed uniformly on the same circle without touching, the pliers arranged in the same interval cooperating alternately one with one and the next with l 'other of the two discs delimiting said interval.

De par la structure du rouleau rotatif connu, deux pinces voisines ne peuvent jamais coopérer ensemble pour enserrer entre elles des poils.Due to the structure of the known rotary roller, two neighboring clamps can never cooperate together to grip bristles between them.

C'est pourquoi la présente invention a pour but de réaliser un appareil du type mentionné au début, mais qui est conçu de façon différente afin que le pincement des poils à arracher soit effectué entre deux disques ou lames successifs selon un processus assurant une parfaite efficacité de ce pincement et sans rencontrer les inconvénients exposés ci-dessus.This is why the present invention aims to achieve an apparatus of the type mentioned at the start, but which is designed in a different way so that the pinching of the hairs to be plucked is carried out between two successive discs or blades according to a process ensuring perfect efficiency. of this pinching and without encountering the drawbacks exposed above.

A cet effet, l'invention vise un appareil à épiler qui comporte un rouleau rotatif d'épilation formé par une série de lames disposées côte à côte sur un arbre rotatif d'entraînement dans un boîtier susceptible d'être tenu à la main et derrière une ouverture de celui-ci, et des moyens assurant périodiquement le pincement des poils engagés entre ces lames.To this end, the invention relates to a hair removal device which comprises a rotary depilation roller formed by a series of blades arranged side by side on a rotary drive shaft in a housing capable of being held by hand and behind an opening thereof, and means ensuring periodically the nipping of the bristles engaged between these blades.

Cet appareil est caractérisé en ce que ces lames sont montées les unes à la suite des autres sur ledit arbre d'entraînement de façon à pouvoir pivoter chacune autour d'un axe distinct perpendiculaire à cet arbre, et qu'il est prévu des moyens mécaniques d'actionnement de ces lames, aptes à provoquer, au moins une fois par tour du rouleau, le pivotement de ces lames, l'une dans un sens et la suivante dans le sens opposé, de façon à assurer le serrage des lames par groupe de deux sur leurs parties respectives se trouvant alors à l'endroit de la surface de travail, afin de pincer les poils engagés entre ces lames pour les arracher.This device is characterized in that these blades are mounted one after the other on said drive shaft so as to be able to pivot each around a separate axis perpendicular to this shaft, and that mechanical means are provided actuating these blades, capable of causing, at least once per turn of the roller, the pivoting of these blades, one in one direction and the next in the opposite direction, so as to ensure the clamping of the blades by group of two on their respective parts then being at the location of the work surface, in order to pinch the hairs engaged between these blades to pluck them.

Ainsi, à chaque tour du rouleau d'épilation, on obtient, à une ou plusieurs reprises, le serrage de chacune des lames dudit rouleau contre une lame voisine, et ce par un mouvement de pivotement de ces lames, l'une vers l'autre, et non pas par une déformation et une compression de l'ensemble des lames du rouleau. En conséquence, entre les phases de pincement, les lames du rouleau peuvent présenter un écartement relativement important facilitant l'engagement des poils entre ces lames, ce qui augmente considérablement l'efficacité de l'appareil. De plus, la régularité du pincement ne dépend plus que de la précision des moyens mécaniques d'actionnement des lames du rouleau. Par ailleurs, bien que ce soit ces lames qui assurent à elles seules le pincement des poils à arracher, leur nombre n'est limité que par la puissance du moteur de l'appareil.Thus, at each turn of the depilation roller, one obtains, on one or more occasions, the tightening of each of the blades of said roller against a neighboring blade, and this by a pivoting movement of these blades, one towards the other, and not by deformation and compression of all the blades of the roller. Consequently, between pinching phases, the blades of the roller may have a relatively large spacing facilitating the engagement of the bristles between these blades, which considerably increases the efficiency of the device. In addition, the regularity of the pinching only depends on the precision of the mechanical means for actuating the blades of the roller. Furthermore, although it is these blades which alone pinch the hairs to be plucked, their number is limited only by the power of the engine of the device.

Selon une autre caractéristique de cet appareil, chaque lame du rouleau rotatif d'épilation présente à sa périphérie une ou plusieurs parties saillantes constituant les zones de pincement de ces lames, ces zones étant disposées sur un même alignement sur le rouleau rotatif. Cette caractéristique particulière ne permet d'obtenir une plus grande efficacité de l'appareil qu'avec des lames constituées par des disques de contour circulaire, car il existe ainsi des redans entre les zones saillantes de pincement, ce qui facilite encore l'engagement des poils à l'intérieur du rouleau d'épilation..According to another characteristic of this device, each blade of the rotary epilation roller has at its periphery one or more protruding parts constituting the pinching zones of these blades, these zones being arranged in the same alignment on the rotary roller. This particular characteristic makes it possible to obtain greater efficiency of the device than with blades formed by discs of circular contour, since there are thus steps between the protruding pinching zones, which further facilitates the engagement of the hairs inside the hair removal roller ..

Dans une forme de réalisation avantageuse du présent appareil, l'arbre rotatif d'entraînement des lames d'épilation présente une section polygonale, par exemple carrée, et ces lames comportent une ouverture centrale également de section polygonale à l'intérieur de laquelle est engagé cet arbre, et, en deux zones diamétralement opposées, le bord de l'ouverture centrale de chaque lame d'épilation est engagé dans une gorge transversale de retenue à l'intérieur de laquelle elle dispose d'une liberté de débattement permettant son pivotement autour d'un axe perpendiculaire à l'arbre d'entraînement.In an advantageous embodiment of the present device, the rotary shaft for driving the epilation blades has a polygonal section, for example square, and these blades have a central opening also of polygonal section inside which is engaged this shaft, and, in two diametrically opposite zones, the edge of the central opening of each epilation blade is engaged in a transverse retaining groove inside which it has freedom of movement allowing it to pivot around an axis perpendicular to the drive shaft.

Selon une autre caractéristique de cette forme avantageuse de réalisation, les moyens mécaniques assurant le serrage des lames d'épilation comprennent au moins une paire de barrettes et des organes de commande pour ces barrettes montées coulissantes contre une face de l'arbre rotatif d'entraînement, parallèlement à l'axe de celui-ci, et comportant des rainures transversales à l'intérieur de chacune desquelles est engagée une dent prévue sur le bord de l'ouverture centrale de l'une ou de l'autre lame d'une paire de lames d'épilation, de telle sorte que toutes les lames sont accouplées alternativement avec l'une et l'autre de ces deux barrettes coulissantes susceptibles d'être actionnées par les organes de commande de façon à se déplacer en sens inverse l'une de l'autre afin de faire pivoter en sens inverse deux lames successives d'épilation et d'assurer le serrage des parties respectives de ces deux lames se trouvant à l'endroit de la surface de travail.According to another characteristic of this advantageous embodiment, the mechanical means ensuring the clamping of the epilation blades comprise at least one pair of bars and control members for these bars mounted sliding against a face of the rotary drive shaft, parallel to the axis thereof, and having transverse grooves inside each of which is engaged a tooth provided on the edge of the central opening of one or the other blade of a pair of epilation blades, so that all the blades are coupled alternately with one and the other of these two bars sliding elements capable of being actuated by the control members so as to move in opposite directions to one another in order to rotate in opposite direction two successive depilation blades and to ensure the tightening of the respective parts of these two blades at the location of the work surface.

D'autres particularités et avantages de l'appareil selon l'invention ressortiront encore de la description suivante, donnée en référence au dessin annexé à simple titre indicatif, et sur lequel :

  • La figure 1 est une vue schématique en élévation d'un appareil à épiler selon l'invention, le carter de celui-ci étant ouvert.
  • La figure 2 est une vue schématique en coupe transversale de ce même appareil, celui-ci étant représenté en cours d'utilisation.
  • La figure 3 est une vue partielle en élévation de l'une des lames constituant le rouleau rotatif d'épilation.
  • La figure 4 est une vue partielle en coupe de deux de ces lames, représentées au moment du serrage de leur zone respective de pincement.
  • La figure 5 est une vue en perspective de la tête d'épilation du présent appareil.
  • La figure 6 est une vue en coupe axiale de cette même tête, avec arrachement, la moitié gauche de cette figure étant une vue sur les barrettes 14a, 15b et la moitié droite de cette figure montrant les barrettes 14b et 15a.
  • La figure 7 en est une vue en coupe transversale suivant la ligne VII-VII de la figure 6.
  • La figure 8 est un schéma explicatif des phases de serrage et d'ouverture des lames d'épilation.
  • La figure 9 est un schéma explicatif du mode de pincement de ces lames.
  • La figure 10 est un schéma similaire correspondant à une variante de réalisation.
  • Les figures 11 à 15 représentent diverses variantes de réalisation du contour des lames d'épilation du rouleau rotatif.
Other particularities and advantages of the apparatus according to the invention will emerge from the following description, given with reference to the attached drawing for information only, and in which:
  • Figure 1 is a schematic elevational view of a hair removal device according to the invention, the casing thereof being open.
  • Figure 2 is a schematic cross-sectional view of this same device, it being shown in use.
  • Figure 3 is a partial elevational view of one of the blades constituting the rotary epilation roller.
  • Figure 4 is a partial sectional view of two of these blades, shown at the time of tightening of their respective pinching area.
  • Figure 5 is a perspective view of the epilation head of the present apparatus.
  • Figure 6 is an axial sectional view of the same head, with cutaway, the left half of this figure being a view of the bars 14a, 15b and the right half of this figure showing the bars 14b and 15a.
  • FIG. 7 is a cross-sectional view along the line VII-VII of FIG. 6.
  • Figure 8 is an explanatory diagram of the tightening and opening phases of the epilation blades.
  • Figure 9 is an explanatory diagram of the pinching mode of these blades.
  • Figure 10 is a similar diagram corresponding to an alternative embodiment.
  • Figures 11 to 15 show various alternative embodiments of the contour of the epilation blades of the rotary roller.

L'appareil représenté comporte un petit boîtier 1 susceptible d'être tenu à la main et à l'intérieur duquel sont contenus tous les organes mécaniques de cet appareil. Ce boîtier présente une forme allongée et l'une de ses extrémités est fermée par un couvercle 2 constituant en quelque sorte le bâti de la tête de travail ou tête d'épilation de l'appareil. Ainsi, cette tête d'épilation est amovible par rapport au boîtier 1.The device shown comprises a small box 1 capable of being held in the hand and inside which are contained all the mechanical organs of this device. This housing has an elongated shape and one of its ends is closed by a cover 2 constituting in a way the frame of the working head or epilation head of the device. Thus, this epilation head is removable relative to the housing 1.

Le couvercle 2 comporte une ouverture allongée 3 derrière laquelle se trouve situé un rouleau rotatif d'épilation 4. Celui-ci est consitué par une série de lames minces disposées les unes à la suite des autres sur un arbre rotatif 6, et désignées alternativement par les références 5a et 5b. L'entraînement de cet arbre en rotation est assuré par un petit moteur électrique 7 par l'intermédiaire d'un train de réduction par pignons 8, ou autre système mécanique permettant d'obtenir une vitesse optimale. Ce moteur est alimenté par une pile électrique 9, également logée à l'intérieur du boîtier 1. De préférence l'arbre du moteur 7 est équipé d'un rotor 10 de turbine de manière à créer une surpression à l'intérieur du boîtier 1 afin de s'opposer à la pénétration des poils arrachés, à travers l'orifice 11 de passage de l'un des pignons d'entraînement de l'arbre rotatif 6.The cover 2 has an elongated opening 3 behind which is located a rotary depilation roller 4. This is formed by a series of thin blades arranged one after the other on a rotary shaft 6, and designated alternately by references 5a and 5b. The drive of this rotating shaft is provided by a small electric motor 7 by means of a reduction gear by pinions 8, or other mechanical system making it possible to obtain an optimal speed. This motor is powered by an electric battery 9, also housed inside the housing 1. Preferably the motor shaft 7 is equipped with a turbine rotor 10 so as to create an overpressure inside the housing 1 in order to oppose the penetration of the torn hairs, through the orifice 11 for passage of one of the drive pinions of the rotary shaft 6.

L'arbre rotatif 6 de la tête d'épilation est disposé entre deux flasques 12 solidaires du couvercle 2 et qui comportent les paliers de rotation des extrémités de cet arbre. Ainsi qu'il apparait sur les figures 5 et 7, celui-ci présente une section carrée. Contre deux faces opposées de cet arbre sont disposées deux réglettes plates 13 destinées à servir d'organes de maintien des lames d'épilation 5a, 5b. Contre chacune des deux autres faces de cet arbre sont placées deux barrettes 14a, 14b, ou respectivement 15a, 15b, qui sont montées coulissantes parallèlement à l'axe de l'arbre 6. Comme il sera expliqué par la suite, ces barrettes constituent les organes d'actionnement des lames d'épilations 5a, 5b pour provoquer périodiquement le serrage de leur zone de pincement.The rotary shaft 6 of the epilation head is disposed between two flanges 12 integral with the cover 2 and which comprise the rotational bearings of the ends of this shaft. As it appears in Figures 5 and 7, it has a square section. Against two opposite faces of this shaft are arranged two flat strips 13 intended to serve as members for holding the epilation blades 5a, 5b. Against each of the two other faces of this tree are placed two bars 14a, 14b, or respectively 15a, 15b, which are slidably mounted parallel to the axis of the tree 6. As will be explained below, these bars constitute the actuating members of the epilation blades 5a, 5b to periodically cause the clamping zone to be tightened.

A ce sujet il faut noter que ces lames ne présentent pas la forme de disques de contour circulaire. En effet, comme représenté sur la figure 11, chacune d'elles comporte à sa périphérie deux parties saillantes 16 disposées de façon diamétralement opposée et qui sont destinées à constituer les zones de pincement de la lame correspondante. Par rapport au cercle C circonscrit autour de l'ensemble, il existe donc en quelque sorte deux parties en retrait 26 entre les parties saillantes 16. Ceci a pour effet de faciliter l'engagement des poils à l'intérieur du rouleau d'épilation. En dehors des parties saillantes 16 chaque lame peut présenter un contour circulaire ou autre, ce contour étant déterminé de façon à faciliter l'engagement des poils à arracher entre les lames.On this subject it should be noted that these blades do not have the shape of discs of circular contour. In fact, as shown in FIG. 11, each of them comprises at its periphery two projecting parts 16 arranged in diametrically opposite directions and which are intended to constitute the nip zones of the corresponding blade. Compared to the circle C circumscribed around the assembly, there are therefore somehow two recessed parts 26 between the projecting parts 16. This has the effect of facilitating the engagement of the bristles inside the epilating roller. Outside the projecting parts 16, each blade may have a circular or other contour, this contour being determined so as to facilitate the engagement of the bristles to be torn between the blades.

Ces diverses lames présentent une ouverture centrale 17 de section polygonale dont la forme est telle qu'elle permette le passage à la fois de l'arbre rotatif 6 et des différentes réglettes 13 et barrettes 14a, 14b, 15a, 15b. Cependant les parties du bord interne de cette ouverture 17, qui se trouvent situées en regard des réglettes 13, sont engagées à l'intérieur de gorges transversales 18 ménagées sur la face externe de ces réglettes. Ceci assure la tenue des différentes lames 5 et le maintien de l'écartement voulu entre celles-ci. Mais les gorges 18 vont en s'élargissant de part et d'autre de leur partie médiane à l'endroit de laquelle il est prévu une nervure transversale 19 sur chaque paroi. Ceci confère une possibilité de pivotement de chaque lame 5 autour d'un axe X-X' matérialisé en quelque sorte par les nervures 19 et qui s'étend à angle droit par rapport à l'axe Y-Y' de l'arbre rotatif 6. Ainsi les différentes lames 5 peuvent pivoter autour d'une série d'axes distincts X-X', tous perpendiculaires à l'axe Y-Y' (voir figure 5).These various blades have a central opening 17 of polygonal section whose shape is such that it allows the passage of both the rotary shaft 6 and the various strips 13 and bars 14a, 14b, 15a, 15b. However, the parts of the internal edge of this opening 17, which are located opposite the strips 13, are engaged inside grooves transverse 18 formed on the outer face of these strips. This ensures that the various blades 5 are held and the desired spacing between them is maintained. However, the grooves 18 widen on either side of their median part at the place where a transverse rib 19 is provided on each wall. This confers a possibility of pivoting of each blade 5 around an axis XX 'materialized in a way by the ribs 19 and which extends at right angles to the axis YY' of the rotary shaft 6. Thus the different blades 5 can pivot around a series of distinct axes X-X ', all perpendicular to the axis YY' (see Figure 5).

Les barrettes coulissantes 14a, 14b et 15a, 15b de chaque paire présentent pour leur part une série de rainures transversales 20. Cependant dans chaque paire de telles barrettes, il existe un décalage entre les rainures de l'une et l'autre barrettes correspondantes. Quant aux lames 5, elles présente, sur le bord de leur ouverture centrale 17, une dent saillante 21a pour les lames 5a et 21b pour les lames 5b. Les dents 21a des lames 5a sont engagées dans les rainures 20 des deux barrettes 14a et 15a. Quant aux dents 21b des lames 5b, elles sont engagées dans les rainures 20 des barrettes 14b et 15b. Ainsi, les lames d'épilation sont accouplées alternativement avec l'une et avec l'autre des deux barrettes coulissantes d'une même paire.The sliding bars 14a, 14b and 15a, 15b of each pair have for their part a series of transverse grooves 20. However in each pair of such bars, there is a shift between the grooves of the one and the other corresponding bars. As for the blades 5, they have, on the edge of their central opening 17, a projecting tooth 21a for the blades 5a and 21b for the blades 5b. The teeth 21a of the blades 5a are engaged in the grooves 20 of the two bars 14a and 15a. As for the teeth 21b of the blades 5b, they are engaged in the grooves 20 of the bars 14b and 15b. Thus, the epilation blades are coupled alternately with one and with the other of the two sliding bars of the same pair.

Chaque barrette coulissante 14a, 14b ou 15a, 15b porte une tête de manoeuvre 22a ou 22b, et dans chaque paire de barrettes 14a, 14b ou 15a, 15b, la tête par exemple 22a de l'une par exemple 14a des deux barrettes 14a, 14b est située à une extrémité et la tête par exemple 22b de l'autre barrette par exemple 14b à l'extrémité opposée. Or du côté de l'ouverture 3 de la tête d'épilation, il est prévu, de part et d'autre du rouleau rotatif 4, deux galets 23a et 23b qui sont destinés à faire pression respectivement sur la tête de manoeuvre 22a d'une barrette 14a ou 15a et sur la tête de manoeuvre 22b d'une barrette 15b ou 14b. En outre, des ressorts 24 prévus aux extrémités des barrettes coulisantes (14a, 14b ; 15a, 15b) tendent à maintenir normalement celles-ci dans des positions assurant normalement le maintien d'un écartement entre les différentes lames 5a et 5b. A ce sujet, il faut noter qu'à la place de ressorts 24 prévus aux extrémités des barrettes, comme cela est le cas dans l'exemple représenté à la figure 6, il est possible de prévoir un ressort unique disposé au milieu.Each sliding bar 14a, 14b or 15a, 15b carries an operating head 22a or 22b, and in each pair of bars 14a, 14b or 15a, 15b, the head for example 22a of one for example 14a of the two bars 14a, 14b is located at one end and the head for example 22b of the other bar for example 14b at the opposite end. However, on the side of the opening 3 of the epilation head, there are provided, on either side of the rotary roller 4, two rollers 23a and 23b which are intended to apply pressure respectively to the operating head 22a of a bar 14a or 15a and on the operating head 22b of a bar 15b or 14b. In addition, springs 24 provided at the ends of the sliding bars (14a, 14b; 15a, 15b) tend to normally maintain these in positions normally ensuring the maintenance of a spacing between the different blades 5a and 5b. In this regard, it should be noted that instead of springs 24 provided at the ends of the bars, as is the case in the example shown in Figure 6, it is possible to provide a single spring arranged in the middle.

Lorsque les deux barrettes coulissantes d'une même paire, par exemple les barrettes 14a et 14b, arrivent à l'endroit des galets 23a et 23b, le premier de ceux-ci repousse la barrette 14a dans le sens de la flèche F1 tandis que le second repousse la barrette dans le sens F2 (voir figure 6). Etant donné que les disques 5a sont accouplés avec la barrette 14a, ceci les amène à pivoter dans le sens horaire autour de leur axe X-X'. Quant aux disques 5b, ils sont amenés à pivoter en sens inverse sous l'effet du déplacement de la barrette 14b. Ceci provoque le serrage des parties saillantes de pincement 16 de deux lames voisines deux à deux, comme représenté sur la figure 6 ainsi que sur le schéma de la figure 9.When the two sliding bars of the same pair, for example the bars 14a and 14b, arrive at the location of the rollers 23a and 23b, the first of these pushes the bar 14a in the direction of the arrow F1 while the second pushes the strip back in direction F2 (see figure 6). Since the discs 5a are coupled with the strip 14a, this causes them to pivot clockwise around their axis XX '. As for the disks 5b, they are made to pivot in the opposite direction under the effect of the displacement of the bar 14b. This causes the clamping protrusions 16 of two adjacent blades to be tightened in pairs, as shown in FIG. 6 as well as in the diagram in FIG. 9.

L'agencement est tel que le serrage des zones de pincement 16 s'effectue alors que celles-ci sont situées en regard de l'ouverture 3 du couvercle 2 de la tête d'épilation. Les axes X-X' de pivotement des lames d'épilation se trouvent alors disposés dans un plan sensiblement parallèle au plan tangent de la surface de travail du rouleau rotatif au contact de la peau. Cependant, il y peut y avoir un décalage angulaire dans un sens ou dans l'autre.The arrangement is such that the clamping zones 16 are tightened while they are located opposite the opening 3 of the cover 2 of the epilation head. The axes X-X 'of pivoting of the epilation blades are then arranged in a plane substantially parallel to the tangent plane of the working surface of the rotary roller in contact with the skin. However, there may be an angular offset in one direction or the other.

Le schéma de la figure 8 illustre les différentes phases successives de rapprochement et d'écartement des zones de pincement 16 des lames d'épilation. Sur cette figure la référence F indique la phase de fermeture de ces zones de pincement, la référence P la phase proprement dite de serrage, et la référence O la phase d'ouverture. Les poils à arracher s'engagent entre les parties saillantes 16 des lames d'épilation au cours de la phase F avant leur serrage. Puis, ces poils se trouvent pincés entre les zones saillantes de deux lames successives pendant la phase P et durant cette phase le mouvement de rotation du disque 4 d'épilation a pour effet d'arracher les poils pincés. Enfin ceux-ci se trouvent éjectés par la force centrifuge durant la phase d'ouverture des zones de pincement 16 des lames d'épilation.The diagram in FIG. 8 illustrates the different successive phases of bringing together and spacing the pinching zones 16 of the epilation blades. In this figure, the reference F indicates the closing phase of these pinching zones, the reference P the actual tightening phase, and the reference O the opening phase. The hairs to be plucked engage between the projecting parts 16 of the epilation blades during phase F before they are tightened. Then, these hairs are pinched between the projecting zones of two successive blades during phase P and during this phase the rotary movement of the epilation disc 4 has the effect of plucking the pinched hairs. Finally, these are ejected by centrifugal force during the opening phase of the pinching zones 16 of the epilation blades.

Etant donné que dans l'exemple représenté il est prévu deux paires de barrettes de commande, qui sont disposées à angle droit par rapport aux réglettes 13 de maintien, il se produit deux pincements des lames d'épilation lors de chaque tour du rouleau rotatif. C'est la raison pour laquelle les lames 5a et 5b portent chacune deux parties saillantes 16 de pincement qui sont diamétralement opposées et disposées en regard de l'une ou l'autre paire de barrette de commande. Entre chaque période de pincement des lames d'épilation, celles-ci sont rappelées par les ressorts 24 dans des positions sensiblement parallèles.Since in the example shown, two pairs of control bars are provided, which are arranged at right angles to the holding strips 13, two epilations of the epilation blades occur during each turn of the rotary roller. This is the reason why the blades 5a and 5b each carry two protruding pinching portions 16 which are diametrically opposite and arranged opposite one or the other pair of control bars. Between each period of pinching of the epilation blades, these are recalled by the springs 24 in substantially parallel positions.

Au lieu d'avoir une action directe de rapprochement des parties à serrer des lames d'épilation 5a, 5b, comme cela est le cas dans l'exemple représenté aux figures 1 à 7 ainsi que sur le schéma de la figure 9, les barrettes de commande 14a, 14b et 15a, 15b peuvent avoir une action indirecte, ainsi que prévu sur le schéma de la figure 10. Dans un tel cas, les galets 23a, 23b sont disposés dans une position diamétralement opposée par rapport à l'axe Y-Y′ de l'arbre rotatif 6. L'agencement est alors tel que les barrettes de commande agissent en sens inverse, selon les flèches F2 et F3, sur deux lames successives 5a et 5b de façon à écarter leurs parties correspondantes. Ceci amène ces lames à pivoter comme précédemment de façon que leurs parties de pincement 16, situées du côté opposé, se trouvent serrées l'une contre l'autre. Le fonctionnement est donc ainsi le même que dans le cas précédent.Instead of having a direct action of bringing together the parts to be clamped depilation blades 5a, 5b, as is the case in the example represented in FIGS. 1 to 7 as well as in the diagram of FIG. 9, the bars control 14a, 14b and 15a, 15b can have an indirect action, as provided in the diagram of Figure 10. In such a case, the rollers 23a, 23b are arranged in a position diametrically opposite with respect to the axis YY ′ Of the rotary shaft 6. The arrangement is then such that the control bars act in the opposite direction, according to the arrows F2 and F3, on two successive blades 5a and 5b so as to separate their corresponding parts. This causes these blades to pivot as before so that their pinching parts 16, located on the opposite side, are pressed against each other. The operation is thus the same as in the previous case.

Les galets 23a et 23b peuvent être remplacés par des cames ou tous autres organes appropriés aptes à provoquer le déplacement des barrettes de commande de pivotement 14a, 14b et 15a, 15b chaque fois que celles-ci parviennent en regard de ces organes. La position angulaire de ces cames ou galets de commande est déterminée de telle sorte que le serrage des zones de pincement des lames d'épilation s'effectue au bon moment en fonction de la position ergonomique de l'appareil par rapport à la peau à épiler. Il est possible de prévoir un seul pincement des lames d'épilation par tour de rotation. Mais inversement il est également possible de prévoir un nombre de pincements supérieur à deux au cours de chaque tour en utilisant un plus grand nombre de paires de barrettes de commande.The rollers 23a and 23b may be replaced by cams or any other suitable member capable of causing the displacement of the pivoting control strips 14a, 14b and 15a, 15b each time these arrive opposite these members. The angular position of these cams or control rollers is determined so that the clamping zones of the epilation blades are clamped at the right time depending on the ergonomic position of the device relative to the skin to be depilated. . It is possible to provide only one pinching of the epilation blades per rotation. Conversely, however, it is also possible to provide for a number of pinches greater than two during each revolution by using a greater number of pairs of control strips.

Lorsqu'il est prévu deux ou plusieurs pincements par tour de rotation, il est possible de réaliser une alternance des disques de pincement, ceux-ci étant toujours serrés deux à deux. Il suffit alors que les disques soient accouplés de façon différentes avec les barrettes de commande des différentes paires de barrettes. Ainsi, l'agencement peut être tel que la première paire de barrette agisse sur les disques se trouvant dans les positions 1 et 2, etc. , tandis que la deuxième paire agit sur les disques se trouvant dans les positions 2 et 3, etc.When two or more pinches are provided per rotation, it is possible to alternate the pinch discs, these being always tightened two by two. It suffices then that the discs are coupled in different ways with the control strips of the different pairs of strips. Thus, the arrangement can be such that the first pair of bars acts on the discs located in positions 1 and 2, etc. , while the second pair acts on the discs in positions 2 and 3, etc.

A ce sujet de nombreuses variantes de réalisation peuvent être envisagées, par exemple pour augmenter le nombre de pincements par tour afin de pouvoir réduire la vitesse de rotation du rouleau d'épilation dans le but d'éviter un trop grande brutalité à l'arrachage des poils, et par suite un risque de cassure de ceux-ci.In this regard, many variant embodiments can be envisaged, for example to increase the number of pinches per revolution in order to be able to reduce the speed of rotation of the depilation roller in order to avoid excessive brutality when tearing off the hairs, and consequently a risk of breakage thereof.

Comme indiqué sur les figures 12 à 15, les lames d'arrachage peuvent présenter un contour autre que les lames 5a et 5b illustrées à la figure 11 et qui sont prévues dans l'appareil représenté aux figures 1 à 7.As indicated in FIGS. 12 to 15, the tear-off blades can have a contour other than the blades 5a and 5b illustrated in FIG. 11 and which are provided in the apparatus shown in FIGS. 1 to 7.

Ainsi la figure 12 représente une variante dans laquelle les parties de pincement 16c des lames correspondantes 5c ont une forme différente de celle prévue précédemment. Ces parties saillantes sont séparées entre elles par des zones évidées 26c destinées à favoriser l'engagement des poils arrachés.Thus, FIG. 12 represents a variant in which the gripping parts 16c of the corresponding blades 5c have a shape different from that provided previously. These projecting parts are separated from each other by recessed zones 26c intended to promote the engagement of the plucked hairs.

La figure 13 représente une variante dans laquelle les lames correspondantes 5d comportent une seule partie saillante 16d de pincement de part et d'autre de laquelle il est prévu deux zones évidées 26d. Dans un tel cas la tête d'épilation est conçue pour assurer un seul pincement par tour de rotation.FIG. 13 shows a variant in which the corresponding blades 5d have a single projecting portion 16d of pinching on either side of which two recessed zones 26d are provided. In such a case, the epilation head is designed to ensure only one pinching per rotation.

La figure 14 représente une autre variante également conçue pour le cas d'un seul pincement par tour de rotation. Les lames correspondantes 5e présentent un contour circulaire sensiblement sur la moitié de leur périphérie et deux redans 26e sur le reste de leur pourtour. Il est alors prévu une seule zone de pincement 16e en un point intermédiaire de leur longueur de la partie circulaire.FIG. 14 shows another variant also designed for the case of a single pinch per revolution of rotation. The corresponding blades 5e have a circular outline substantially on half of their periphery and two steps 26e on the rest of their periphery. A single pinching zone 16e is then provided at an intermediate point of their length of the circular part.

La figure 15 représente une autre variante encore dans laquelle les lames correspondantes 5f comportent trois zones distinctes de pincement 16f.FIG. 15 represents yet another variant in which the corresponding blades 5f comprise three distinct pinching zones 16f.

Mais de nombreuses autres variantes encore pourraient être envisagées pour le contour des lames d'épilation du présent appareil.But many other variants could also be envisaged for the contour of the epilation blades of this device.

Ainsi qu'il a déjà été indiqué, les parties en retrait, prévues entre les parties saillantes de pincement, ont pour but de faciliter l'engagement de poils à arracher à l'intérieur du rouleau d'épilation. Ces parties ont également pour but de créer un effet de peignage des poils qui se trouvent ainsi entraînés orientés parallèlement aux lames, ce qui est également de nature à faciliter l'engagement des poils entre ces dernières. Cependant les parties saillantes en contact avec la peau peuvent être de longueur plus importante que celle de la zone proprement dite de pincement (voir par exemple le cas des variantes selon les figures 12, 13 et 14). Ces parties au contact de la peau servent alors à assurer la protection de celle-ci.As already indicated, the recessed parts, provided between the nipping protruding parts, are intended to facilitate the engagement of bristles to be pulled out inside the hair removal roller. These parts are also intended to create an effect of combing of the hairs which are thus entrained oriented parallel to the blades, which is also such as to facilitate the engagement of the hairs between the latter. However, the projecting parts in contact with the skin can be of greater length than that of the actual nipping area (see for example the case of the variants according to FIGS. 12, 13 and 14). These parts in contact with the skin then serve to protect the latter.

A ce sujet il convient de noter que dans un même rouleau rotatif, il est possible de combiner des lames d'épilation ayant des contours différents. En tout état de cause, il est avantageux de prévoir, à l'une et l'autre extrémités du rouleau d'épilation, des lames dépourvues de parties en retrait de façon à maintenir la peau à l'extérieur du rouleau d'épilation. Ainsi on évite que la peau soit tirée lors de l'arrachage des poils. Ceci permet par ailleurs de supprimer la grille de protection de la peau qui doit être habituellement prévue dans les appareils d'épilation du type en cause. Ceci est un avantage car la présence d'une telle grille est nuisible à l'efficacité de l'appareil.On this subject it should be noted that in the same rotary roller, it is possible to combine depilation blades having different contours. In any event, it is advantageous to provide, at both ends of the depilation roller, blades devoid of recessed portions so as to keep the skin outside the depilation roller. This prevents the skin from being pulled when the hairs are pulled out. This also makes it possible to remove the skin protection grid which must usually be provided in hair removal devices of the type in question. This is an advantage because the presence of such a grid is detrimental to the efficiency of the device.

Ainsi qu'il a déjà été indiqué, le principal avantage de l'appareil selon l'invention réside dans le fait que le pincement des lames d'épilation s'effectue par pivotement de deux lames voisines l'une vers l'autre et non pas par une déformation et une compression de l'ensemble des lames du rouleau d'épilation comme cela est le cas dans l'appareil antérieur rappelé précédemment. Or ce mode de pincement des lames d'épilation par pivotement a pour avantage qu'il est possible de prévoir un écartement initial relativement important entre les différentes lames, ce qui facilite la pénétration des poils à l'intérieur du rouleau d'épilation. Par ailleurs cette solution à l'avantage d'être beaucoup plus simple que celle prévue dans l'appareil mentionné précédemment et dans lequel il existait un peigne mobile assurant le pincement des poils contre les lames du rouleau rotatif. Pour ces diverses raisons l'efficacité et la fiabilité du présent appareil se trouvent considérablement améliorées par rapport aux appareils antérieurs du même genre.As already indicated, the main advantage of the device according to the invention lies in the fact that the pinching of the epilation blades is carried out by pivoting of two adjacent blades towards each other and not not by deformation and compression of all of the blades of the epilation roller as is the case in the previous device mentioned above. However, this method of pinching the epilation blades by pivoting has the advantage that it is possible to provide a relatively large initial spacing between the different blades, which facilitates the penetration of the hairs inside the epilation roller. Furthermore, this solution has the advantage of being much simpler. than that provided in the aforementioned apparatus and in which there was a movable comb ensuring the nipping of the bristles against the blades of the rotary roller. For these various reasons, the efficiency and the reliability of the present device are considerably improved compared to previous devices of the same kind.

Claims (10)

  1. An epilating appliance comprising, for the extraction of unwanted hair, a rotary cylinder formed of a series of blades disposed side-by-side on a drive shaft (6) behind an opening (3) in a casing (1) adapted to be held in the user's hand, and means ensuring periodically the gripping of the hairs engaged between the blades, characterized in that the blades (5a, 5b) are mounted successively on the drive shaft (6) so that each blade is pivotal about its own axis (X-X') perpendicular to the shaft, and that mechanical blade actuating means (14a, 14b; 15a, 15b; 22a, 23a; 22b, 23b) are provided causing periodically, at least once per revolution of the cylinder (4), a pivotal movement of successive blades (5a, 5b) in relatively opposite directions, so that the respective portions of the blades, which at this instant are at the location of the working surface, are urged into relative clamping engagement in groups of two, in order to grip the hairs engaged between the blades for subsequent extraction.
  2. An epilating appliance as claimed in claim 1, characterized in that each blade (5a, 5b) of the rotary epilation cylinder (4) is provided at its periphery with one or several projecting portions (16) constituting the gripping zones of the blades, the zones being disposed in the same alignment on the rotary cylinder.
  3. An epilating appliance as claimed in claim 1 or claim 2, characterized in that the rotary shaft (6) for driving the epilating blades (5a, 5b) has a polygonal cross-section, that the blades are provided with a central opening (17) of an equally polygonal cross-section within which the shaft is engaged, and that in two diametrically opposite zones the edge of the central opening of each epilating blade is held in engagement with a transverse retaining channel (18) within which the blade has sufficient clearance of movement to permit its pivotal motion about an axis (X-X') perpendicular to the drive shaft (6).
  4. An epilating appliance as claimed in claim 3, characterized in that the drive shaft (6) of polygonal cross-section has at least one pair of opposite faces against each of which a respective strip (13) is applied which is intended to serve as securing member for the epilating blades (5a, 5b) and comprises transverse retaining channels (18) within each of which one of the epilating blades (5a, 5b) is mounted so as to be pivotal about its respective axis (X-X') perpendicular to the axis (Y-Y') of the drive shaft (6).
  5. An epilating appliance as claimed in claim 3 or claim 4, characterized in that the channels (18) within which the edges of the central opening (17) of a respective epilating blade (5a, 5b) are engaged progressively increase in width on each side of their central portion where each of the walls bounding a channel (18) comprises a respective transverse rib (19), with the two ribs (19) of each channel (18) defining the pivot axis (X-X') of the corresponding epilating blade (5a or 5b).
  6. An epilating appliance as claimed in any one of the preceding claims, characterized in that the mechanical means ensuring the clamping action of the epilating blades (5a, 5b) comprise at least one pair of bars (14a, 14b or 15a, 15b) and control elements (22a, 23a; 22b, 23b) for the bars (14a, 14b or 15a, 15b), that the bars (14a, 14b or 15a, 15b) are slidable relative to a face of the rotary drive shaft (6) parallel to the shaft axis and comprise transverse grooves (20) each of which is in engagement with a tooth (21a or 21b) provided on the edge of the central opening (17) of the one or the other blade of a pair of epilating blades(5a, 5b), such that all blades are coupled alternately to the one and the other one of the two sliding bars (14a, 14b or 15a, 15b) which are actuatable by the control elements (22a, 23a, 22b, 23b) so as to be displaced in relatively opposite directions, such as to cause two successive epilating blades to pivot in relatively opposite directions, whereby the respective portions (16) of the two blades are clamped against each other the instant they are at the location of the working surface.
  7. An epilating appliance as claimed in any one of the claims 1 and 3 to 6, characterized in that the drive shaft (6) has a square cross-section and two pairs of opposite faces, that two strips (13) intended to serve as securing members for the epilating blades (5a, 5b) are applied against the opposite faces of a first pair of faces, and that two bars (14a, 14b or 15a, 15b) are applied against at least one of the opposite faces of the other pair of faces, said bars being slidable parallel to the axis of the drive shaft (6) and cooperating, respectively, with the one and the other blade of a pair of epilating blades (5a, 5b) in order to cause them to pivot in relatively opposite directions.
  8. An epilating appliance as claimed in claim 6, characterized in that the control elements for the sliding bars (14a, 14b and 15a, 15b) comprise two cams or rollers (23a, 23b) which are disposed endwise of the rotary cylinder formed of the epilating blades (5a, 5b) and are adapted to cooperate, respectively, with the one (22a) and the other (22b) actuator head of the bars such as to push the respective sliding bars (14a, 14b and 15a, 15b) back in relatively opposite directions against the action of one or several springs (24) provided endwise of the bars in order to normally maintain the gripping zones (16) of the blades of a pair of epilating blades at a relative spacing.
  9. An epilating appliance as claimed in claim 8, characterized in that the cams or rollers (23a, 23b) controlling the sliding bars (14a, 14b or 15a, 15b) for actuating the epilating blades (5a, 5b) are disposed close to the working surface of the appliance, in respect of the axis of the rotary drive shaft (6).
  10. An epilating appliance as claimed in any one of the preceding claims, characterized in that the rotary drive shaft (6) carries two pairs of bars (14a, 14b and, respectively, 15a, 15b) for actuating the epilating blades (5a, 5b), the two pairs of bars being mounted so as to be slidable relative to two opposite faces of the rotary shaft.
EP89400041A 1988-02-09 1989-01-06 Hair-plucking apparatus Expired - Lifetime EP0328426B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94102675A EP0605396B1 (en) 1988-02-09 1989-01-06 Depilatory apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801499 1988-02-09
FR8801499A FR2626750B1 (en) 1988-02-09 1988-02-09 HAIR REMOVAL APPARATUS

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP94102675A Division EP0605396B1 (en) 1988-02-09 1989-01-06 Depilatory apparatus
EP94102675.9 Division-Into 1994-02-23

Publications (3)

Publication Number Publication Date
EP0328426A2 EP0328426A2 (en) 1989-08-16
EP0328426A3 EP0328426A3 (en) 1990-05-16
EP0328426B1 true EP0328426B1 (en) 1994-09-14

Family

ID=9363087

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89400041A Expired - Lifetime EP0328426B1 (en) 1988-02-09 1989-01-06 Hair-plucking apparatus
EP94102675A Revoked EP0605396B1 (en) 1988-02-09 1989-01-06 Depilatory apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94102675A Revoked EP0605396B1 (en) 1988-02-09 1989-01-06 Depilatory apparatus

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Country Link
US (1) US4960422A (en)
EP (2) EP0328426B1 (en)
JP (1) JP2736797B2 (en)
AT (2) ATE111315T1 (en)
DE (2) DE68918128T2 (en)
ES (2) ES2116484T3 (en)
FR (1) FR2626750B1 (en)

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Also Published As

Publication number Publication date
US4960422A (en) 1990-10-02
DE68918128D1 (en) 1994-10-20
EP0328426A2 (en) 1989-08-16
EP0605396A3 (en) 1995-01-25
DE68928647D1 (en) 1998-05-28
ES2116484T3 (en) 1998-07-16
ES2060796T3 (en) 1994-12-01
FR2626750A1 (en) 1989-08-11
DE68928647T2 (en) 1998-09-17
ATE165218T1 (en) 1998-05-15
ATE111315T1 (en) 1994-09-15
DE68918128T2 (en) 1995-03-09
EP0605396B1 (en) 1998-04-22
EP0605396A2 (en) 1994-07-06
JPH0236857A (en) 1990-02-06
FR2626750B1 (en) 1991-02-15
EP0328426A3 (en) 1990-05-16
JP2736797B2 (en) 1998-04-02

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