EP0385881A1 - Wax hair remover apparatus using convection heating - Google Patents

Wax hair remover apparatus using convection heating Download PDF

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Publication number
EP0385881A1
EP0385881A1 EP90400600A EP90400600A EP0385881A1 EP 0385881 A1 EP0385881 A1 EP 0385881A1 EP 90400600 A EP90400600 A EP 90400600A EP 90400600 A EP90400600 A EP 90400600A EP 0385881 A1 EP0385881 A1 EP 0385881A1
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EP
European Patent Office
Prior art keywords
tank
heating
wax
cartridges
walls
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.)
Withdrawn
Application number
EP90400600A
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German (de)
French (fr)
Inventor
Fontaine Alain
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.)
COSMETIQUES RHONE ALPES (SARL) Ste
Original Assignee
COSMETIQUES RHONE ALPES (SARL) Ste
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Publication date
Application filed by COSMETIQUES RHONE ALPES (SARL) Ste filed Critical COSMETIQUES RHONE ALPES (SARL) Ste
Publication of EP0385881A1 publication Critical patent/EP0385881A1/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0014—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers using wax

Definitions

  • the invention relates to a low temperature wax removal device which is hard at room temperature and liquid at a temperature between 55 ° C and 75 ° C.
  • a hair removal device comprising a heating device for placing at its application temperature the wax contained in the reservoirs of a plurality of cartridges provided with an applicator.
  • the heater consists of a plurality of heating sleeves adapted to the dimensions of the reservoirs which are of variable size, and of two cord heating blankets provided with an automatic thermostat and arranged on each side of the sleeves.
  • the cartridges reservoirs are substantially parallelepipedal in the same shape as and in contact with the sleeves.
  • This device has the advantage of low cost and is intended for non-intensive domestic use. However, it cannot be used satisfactorily by professionals, for example beauty salons. Indeed, it does not provide precise and uniform heating of the wax which is in the cartridge reservoir locally too hot or too cold. In addition, some cartridges are hotter than others. This results, on the one hand, in a lack of reliability and user comfort, and on the other hand, by a too high permanent operating cost. In addition, the heating of the wax is not perfect, its application is not either, the layers of wax applied to the skin not having a uniform thickness.
  • the wax tanks are placed in close contact with the heating walls of the sleeves or receptacles, or even with the elements heating themselves, the heating of the wax being carried out essentially by conduction from the heat source to the wax.
  • the various walls interposed between the heat sources (generally in the form of an electric heating resistance) and the wax are as much as possible conductive of the heat, and are shaped to follow the contours of the wax tanks.
  • French patent application 2,599,602 even provides an external isolation chamber for handling the wax tank. French patent 2,560,601 also provides for limiting the temperature of the wax to 66 ° C.
  • the invention aims to remedy the drawbacks of hair removal devices of the prior art. It therefore relates to a hair removal device which provides a homogeneous heating of the wax of the cartridges, the wax of each cartridge being heated homogeneously and all the cartridges being at the same temperature. It also has the object of allowing a precise adjustment of the heating temperature of the wax, in particular with a precision of the degree. Another object of the invention is to provide such an apparatus which can be used intensively by professionals, that is to say which can either be permanently connected, or be switched off and on regularly and allow rapid heating. wax, with large capacity wax tanks.
  • Another object of the invention is to allow the wax to be heated to a relatively high temperature, in particular of the order of 72 ° C., without however creating a burning sensation for the user or the patient, by providing intense heating. but "soft" wax cartridges, mainly by convection.
  • Another object of the invention is to improve the performance of hair removal while suppressing the reactions, burns or irritations of the depilated skin.
  • the invention provides a waxing apparatus comprising a heating device making it possible to place at its application temperature on the skin, the wax contained in the reservoir of at least one wax cartridge, l heater comprising a tank for receiving said tank for heating, and means for heating the walls of the tank, characterized in that that the respective dimensions of the tank and of each wax tank are such that each tank inserted into the tank with a view to heating it is at a distance from the at least lateral peripheral walls of the tank with which it does not come into contact, the tank heating being effected by means of the heated air contained in the tank, essentially by convection.
  • the respective dimensions of the tank and of each wax tank are such that a layer of hot air separates the external wall of each tank from the internal wall of the tank.
  • the peripheral walls of the tank are double walls containing a heat transfer fluid, and the heating means are placed outside these double peripheral walls.
  • the shape of each tank is different from that of the tank.
  • each tank is cylindrical in revolution, and the tank is parallelepiped.
  • the apparatus comprises a heater intended for simultaneously heating a plurality of wax cartridges, and is characterized in that it comprises a heating tank common to all the cartridges heated simultaneously, this common tank being made up of double peripheral walls and delimiting an internal space of hot air in which the tanks of the cartridges can be inserted for heating.
  • the tank delimits a single parallelepipedal hot air compartment common for all the cartridges tanks which are not in direct contact with the double peripheral walls of this tank.
  • the heating apparatus comprises a casing, one wall of which, in particular the upper wall, is provided with orifices for the passage and holding of the cartridges, and the peripheral walls of the tank define a single opening placed against and under this wall of the casing provided with holes for the passage and for holding the cartridges.
  • the double peripheral walls of the tank consist of two internal and external enclosures nested one inside the other to form between them a single closed reservoir of constant thickness containing a heat transfer fluid.
  • the heating means of the peripheral walls consist of a heating plate mounted in contact with and outside of a wall of the enclosure external of the tank. At least one thermal probe for a thermometer and / or for a thermostat is mounted against the opposite wall of the tank.
  • An insulating plate for example made of bakelite, is provided on the bottom of the tank in order to prevent the bottom of the cartridge reservoirs from coming into direct contact with the bottom of the tank.
  • the walls of the cartridge tanks are made of soft insulating plastic.
  • the heating device includes an adjustable thermostat for regulating the temperature of the heat-transfer fluid contained in the tank formed by the double walls of the tank, and a thermometer for displaying the temperature of the heat-transfer fluid contained in the double peripheral walls of the tank.
  • the heating appliance further comprises a cover hinged to said wall of the casing comprising the orifices for passing and holding the cartridges, so that this cover can cover the cartridges during heating.
  • the lid in the open position forms a receptacle for storing paper strips useful for hair removal.
  • the bottom wall of the heater housing is perforated to provide good ventilation.
  • the wax used with a heating device according to the invention and contained in each reservoir and applied to the skin is a wax based on natural resin and azulene.
  • This wax is thermally insulating, that is to say that it is chosen to be relatively non-conductive of heat.
  • the invention makes it possible to provide an apparatus providing “gentle” heating by convection of the wax at a relatively high temperature, in particular of the order of 72 ° C., homogeneous, which allows the temperature of the wax to be adjusted with high precision, thermostatically controlled, and quickly operational after cold commissioning.
  • wax cartridges each consisting of an extended wax reservoir of a roller applicator, the wax heated to about 72 ° C is applied to the skin at a temperature which facilitates the swelling of the pore on which the hair is located without causing any pain or irritation.
  • the hair will be pulled out with its bulb.
  • the provisions of the invention allow the practitioner to use wax heated to about 72 ° C without any burning sensation, for her as for her client.
  • it was impossible to use a such a wax temperature because it would inevitably have caused a burning sensation, and for the practitioner and her client, since the heating being carried out by conduction, the walls of the reservoirs and the wax itself were conductive of heat.
  • the walls of the reservoir and the wax itself are insulating from the heat, which makes it possible to reduce the burning sensations for the practitioner as for her client.
  • the choice of a soft plastic material constituting the walls of the tank makes it possible, for the same temperature, to considerably reduce the burning sensation when this tank is held in hand. In practice, it has been found that one can thus gain approximately 5 ° C. Furthermore, convection heating has proven to be much more efficient, gentle and homogeneous than conduction heating. It also provides the advantage of allowing the heating or reheating of the roller applicator devices of the cartridges over which the cover of the heater is closed. Thus, when the lid is opened and a cartridge is extracted for use, the wax, possibly already present on the applicator roller, can be used directly and at the right temperature.
  • the cylindrical shape of revolution of the tanks allows a more homogeneous diffusion of the wax, the temperature of the bottom of the tank being the same as that of its upper part, no hot or cold spot being created in the wax tank.
  • this cylindrical shape of revolution allows the use of a large diameter neck for the reservoir, and therefore facilitates the filling of the reservoir by the practitioner herself.
  • the apparatus according to the invention comprises for example four openings formed in the upper wall of the heating device to simultaneously receive four cartridges which can contain approximately 400 g of wax in total.
  • the heat transfer fluid used for example consists of 300 ml of oil resistant to high temperature, in particular not undergoing any degradation at a temperature greater than or equal to 200 ° C.
  • the simultaneous use of a thermometer and an adjustable thermostat makes it possible, in combination with the characteristics of the invention, to obtain an adjustment of the temperature of the wax with an accuracy of degree which has never been obtained before. with conductive heating devices and automatic thermostats.
  • the invention relates to a waxing device comprising a heater 1 for placing at its application temperature on the skin, the wax contained in the reservoir 2 of at least one wax cartridge 4.
  • Each cartridge of wax 4 consists of a reservoir 2 extended by a roller applicator device 3 known per se, for example from European patent application EP-A-0 249 911.
  • the roller 5 of such an applicator device 3 is provided with spiral grooves and / or ribs to facilitate the application of the wax.
  • the heating device 1 comprises a tank 6 for receiving the reservoirs 2 of the cartridges 4 for their heating, and means 7 for heating the walls 8 of the tank 6.
  • the peripheral walls 8-notably the lateral peripheral walls 8a and the bottom 8b- of the tank 6 are double walls 8 containing a heat-transfer fluid, and the heating means 7 are placed outside these walls dual peripherals 8.
  • the respective dimensions of the tank 6 and of each wax tank 2 are such that each wax tank 2 inserted into the tank 6 for heating purposes is distant from the peripheral walls 8 -in particular at least from the lateral peripheral walls 8a- of the tank 6 with which it does not come into contact, the heating of this tank 2 being effected by means of the heated air contained in the tank 6 between the outer wall 9 of the tank 2 and the peripheral walls 8 of the tank.
  • each tank 2 is heated essentially by convection, in particular by natural convection.
  • each tank 2 is different from that of the tank 6.
  • each tank 2 is cylindrical in revolution, and the tank 6 is generally parallelepiped.
  • the wax contained in each reservoir 2 and applied to the skin contains azulene.
  • the percentage of azulene is of the order of 1 ⁇ .
  • the wax also contains pure natural pine resin, especially of food grade, modified pine resin, vegetable and / or mineral oils, essential oils (calming, anesthetic %)
  • the hair removal device shown in the figures comprises a heater 1 for simultaneously heating a plurality of cartridges 4 of wax.
  • this heating device 1 comprises a heating tank 6 common to all the cartridges 4, consisting of double peripheral walls 8, and delimiting an internal space 10 of hot air inside the tank 6 in which the tanks 2 of the cartridges 4 can be inserted for heating.
  • the heating device 1 according to the invention is constituted to allow the heating of four wax cartridges 4.
  • the peripheral double walls 8 of the tank 6 delimit a compartment 10 of single parallelepipedal hot air common to all the tanks 2 of the cartridges 4. These tanks 2 are not in direct contact with the peripheral double walls 8 of the tank 6.
  • the heating device 1 comprises an outer casing 11.
  • This casing is made of steel and covered with a paint baked in the oven, so that it can be easily cleaned using solvents or aggressive detergents, for example of the trichlorethylene type.
  • the casing 11 of the heating appliance 1 constitutes a closed rectangular box which encloses and supports the tank 6 and its various accessories.
  • This casing 11 has a wall 12 - in particular a horizontal top - provided with orifices 13 for passing and holding the cartridges 4.
  • These orifices 13 have a shape corresponding to that of the cross section of the tanks 2 of the cartridges 4, in particular circular.
  • the tanks 2 of the wax cartridges 4 extend into the tank 6 under the upper horizontal wall 12 of the casing 11.
  • the roller applicator devices 3 of the cartridges 4 protrude outside and above the upper horizontal wall 12 of the casing 11.
  • the diameter of the orifices 13 is slightly greater than the external diameter of the tanks 2 to facilitate their insertion into the tank 6 to through these orifices 13, while allowing a certain limited circulation of the hot air from the tank 6 upwards through the upper horizontal wall 12 around the roller applicator devices 3.
  • the heating device 1 comprises a cover 14 hinged to the casing 11.
  • This cover 14 is shaped to cover the roller applicator devices 3 of the cartridges 4 during heating, when it is placed in the closed position.
  • this cover 14 forms in the closed position, with the wall 12 of the upper horizontal casing 11 provided with orifices 13, an upper compartment in which the hot air coming from the tank 6 can circulate to also heat the roller applicator devices.
  • peripheral walls 8 of the tank 6 define a single opening 15 joined against and under the upper horizontal wall 12 of the casing 11 in which the orifices 13 for passing and holding the cartridges 4 are provided. Nevertheless, an air passage interstice (of the order of 2 mm in height) between the tank 6 and the wall 12 of the casing 11 is provided to allow low air circulation.
  • the tank 6, the upper horizontal wall 12 of the casing 11, and the cover 14 form two heating compartments by circulation of hot air: a lower compartment 10 delimited by the peripheral walls 8 of the tank 6 and by the wall 12 upper horizontal of the casing 11 and located under this wall 12 to receive the reservoirs 2 of the cartridges 4, and an upper compartment delimited by the domed cover 14 and this upper horizontal wall 12, and situated above this wall 12.
  • the cover 14 is curved to cover the applicator devices 3, and has for example a cross section in the shape of a U, or V, or an open trapezium.
  • the cover 14 is articulated by one of these longitudinal edges around a longitudinal horizontal axis 16 in the vicinity of an upper longitudinal horizontal edge of the casing 11 formed by the upper horizontal wall 12 and one of its longitudinal vertical walls 17.
  • Each plate 18 is provided with a longitudinal horizontal bore opening into which is inserted with free pivoting a stud or screw 19 extending horizontally and longitudinally the corresponding horizontal and longitudinal edge of the cover 14.
  • the tank 6 is of parallelepiped shape. Its peripheral walls 8 consist of vertical side walls 8a and a bottom horizontal bottom 8b and delimit an upper opening 15 attached to the upper horizontal wall 12 of the casing 11.
  • the tank 6 is rigidly associated with the casing 11, in particular with the wall upper horizontal 12.
  • tabs 20 integral with the vertical side walls 8a and extending horizontally towards the outside of the tank 6 from the upper edge 21 of the vertical side walls 8a.
  • These fixing lugs 20 extend immediately under and in contact with the upper horizontal wall 12 of the casing 11 to which they are fixed by means of suitable fixing means 48 such as rivets, bolts, etc.
  • the double peripheral walls 8 of the tank 6 are made up of two internal and external respectively 22 enclosures 23, nested one inside the other, to form a single closed reservoir 24 of constant thickness of heat-transfer fluid.
  • the peripheral double walls 8 of the tank 6 therefore consist of an enclosure internal metal 22 delimiting the internal space 10 of hot air, and an external metallic enclosure 23 extending around the internal enclosure 22 to form, between these two enclosures 22, 23, a single sealed closed reservoir 24 d constant thickness of heat transfer fluid.
  • the heat transfer fluid inserted into this reservoir 24 formed by the two enclosures 22, 23, consists of oil capable of withstanding high temperature, in particular at a temperature above 200 ° C.
  • the external enclosure 23 is provided with a filling orifice 25 closed by a removable plug 26.
  • the means 7 for heating the peripheral walls 8 consist of an electric heating plate 7 mounted in contact with and outside a side wall 27, in particular of greater length, of the external enclosure 23 of the tank 6, so that the heat transfer fluid contained in the tank 24 is heated by convection and natural circulation inside this tank 24 formed by the double peripheral walls 8.
  • the electric heating plate 7 is mounted on one side of the tank 6 against this vertical lateral external wall 27 of the external enclosure 23.
  • the heating appliance 1 also comprises at least one thermal probe 28, 29 mounted against the external vertical lateral wall 30 opposite the external enclosure 23 of the tank 6.
  • the electric heating plate 7 consists of an electric heating resistor embedded in a conductive synthetic material and covered with a flat rectangular metal case.
  • This rectangular heating plate 7 is rigidly associated, but removably with the external vertical side wall 27 of the external enclosure 23 by means of four fixing lugs 31 welded to this wall 27 by one of their ends and forming with their other end and the wall 27 a gap in which the plate 7 is inserted.
  • the rectangular heating plate 7 has dimensions such that it extends over the major part of the outer wall 27 of the tank 6.
  • the electrical resistance of the heating plate 7 is electrically connected by electrical connection cables 32 to a power supply electric, especially the AC 220 V sector.
  • An indicator light 33 is connected in parallel to the terminals of the electrical resistance to indicate its operation. Furthermore, the phase of the sector is connected to the electrical resistance of the heating plate 7 by means of a switch 34 and an adjustable thermostat 35 for regulating the temperature of the fluid. heat carrier contained in the tank 24. This thermostat acts on the electrical supply of the heating plate 7.
  • This adjustable thermostat 35 is controlled by a thermal probe 28 to which it is electrically connected by a wire 47, probe 28 which is rigidly associated but removably to the wall 30 of the external enclosure 23 opposite that 27 on which the heating plate 7 is fixed. This adjustable thermostat 35 therefore makes it possible to adjust at will and regulate the temperature of the oil contained in the reservoir 24 formed by the double peripheral walls 8 of the tank 6.
  • the heating device 1 comprises a thermometer 36 connected by a conducting wire 46 to a second thermal probe 29 rigidly and removably associated with the same wall 30 as the thermal probe 28 of the thermostat 35.
  • the thermometer 36 therefore makes it possible to indicate to the user the actual temperature oil.
  • the switch 34, the thermostat 35 and the electrical resistance of the heating plate 7 are connected in series as shown in FIG. 2.
  • the two thermal probes 28, 29 are associated rigidly but removably in contact with the wall 30 thanks to the same fixing lug 37 welded at each of its ends to the wall 30 and providing in its middle part, with this wall 30, a gap in which the probes 28, 29 are inserted.
  • the heating device 1 comprises an insulating plate 38 - in particular bakelite (registered trademark) - which extends inside the tank 6 on the bottom 8b of this tank 6 in order to prevent the bottom 39 of the tanks 2 of the cartridges 4 comes directly into contact with the bottom 8b of the tank 6. Thus, no part of the cartridges 4 and their tank 2 is in contact with the hot metallic inner enclosure 22 of the tank 6.
  • the tanks 2 have their bottom 39 which rests on this insulating plate 38.
  • the walls 9 of the reservoirs 2 of the wax cartridges 4 are made of soft insulating plastic material resistant to heat, in particular at a temperature above 100 ° C.
  • the reservoirs 2 of the cartridges 4 and the orifices 13 for passage and holding formed on the casing 11 of the heating device 1 all have the same dimensions.
  • one or the other of the different cartridges 4 can be used interchangeably.
  • the wax contained in the reservoir 2 of the cartridge 4 in use cools, it suffices to replace it in the tank 6 for warmer fage, and instead use another cartridge 4 whose wax is at the right temperature.
  • the reservoir 2 of each wax cartridge 4 is removably associated with the corresponding roller applicator device 3 and comprises a filling orifice 40 communicating with this applicator device 3 which extends it.
  • the filling orifice 40 has a sufficient diameter so that it can be filled with new wax by practitioners.
  • this diameter of the filling orifice 40 is greater than 15 mm, in particular of the order of 20 mm to 25 mm.
  • the horizontal lower wall 45 of the casing 11 is perforated in order to ensure good ventilation, in particular to avoid overheating of the heating resistance and of the electrical operating accessories (thermostat, fuse, thermometer, etc.).
  • This lower wall 45 consists of a perforated grid carrying suction cups 44, riveted to the vertical walls 17.
  • the cover 14 of the heating device 1 in the open position forms a receptacle for storing strips of paper useful for hair removal.
  • the depilation apparatus shown allows the heating of four cartridges 4 of wax, the reservoirs 2 of which can each contain about 100 ml of wax.
  • the heating plate 7 has a length of the order of 19 cm on a width of the order of 5 cm.
  • the shielded resistor it contains has an electrical power of the order of 200 W at 230 V AC.
  • the external metallic enclosure 23 of the tank 6 is connected to the earth by a cable 41.
  • the thermometer 36 is graduated from 0 to 120 ° C.
  • the thermostat 35 includes an adjustment wheel 42 graduated from 0 to 10.
  • a thermal fuse 43 whose melting point is of the order of 109 ° C. is mounted in series between the thermostat 35 and the electrical resistance 7.
  • the tank 24 of oil formed by the double peripheral walls 8 of the tank 6 between the vertical walls and the respective bottoms of the internal 22 and external 23 enclosures has a capacity of the order of 300 ml of oil.
  • the various electrical wires used for the connections inside the casing 11 are provided to withstand high temperature.
  • Four suction cups 44 are provided under the casing 11 to ensure the stability of the heater 1.
  • the epilation device according to the invention is perfectly safe and reliable, and can thus be intended for professional use.
  • tests have shown that provides homogeneous and "gentle” heating by convection of the wax, with temperature accuracy of the order of a degree. This allows in particular to adapt the heating temperature according to the wax actually used.
  • Tests have been carried out with the hair removal device according to the invention. Wax based on natural wax, natural resin and azulene (cyclopenta-cycloheptene from chamomile oil) was used. The tests were carried out under the following conditions: - the appliance 1 is connected to the mains, and four full 100 ml cartridges 4 are inserted into it, comprising reservoir 2 and roller applicator device 3. The switch 34 is actuated to put the heating appliance 1 into operation . - the thermostat 35 is initially set to the maximum position 10. The indicator light 33 is on. - the cover 14 is closed. - After 20 to 30 min, it can be seen that the oil located in the double peripheral walls 8 reaches a temperature of the order of 120 ° C. - Thermostat 35 is then lowered to position 7 for which the oil temperature is of the order of 95 ° C.
  • the temperature of the wax under these conditions is 72 ° C. after 20 to 30 min, and that it remains very precisely at this temperature if the cartridges 4 are left in the heater 1.
  • the cartridges 4 can be used with the bare hand without any pain or burning, and that they make it possible to apply an extremely fine layer of wax to the skin.
  • the relatively high temperature of the wax allows the skin pores to expand and better pull the bulb out of the hair without the risk of it breaking.
  • the heater 1 according to the invention can be left plugged in and turned on for a whole day, the temperature of the oil and of the wax being controlled by thermostat 35.
  • the heater 1 can be easily cleaned.
  • the apparatus according to the invention is intended to have a lifespan of at least 10 years.
  • the total capacity of the apparatus according to the invention makes it possible to practice 15 to 20 depilations of half-legs without having to refill the reservoirs 2. Nevertheless, these reservoirs 2 can easily be refilled with wax thanks to their large filling orifices. 40.
  • Heating by convection via, on the one hand, an oil tank 24 and, on the other hand, hot air contained in the tank 6 therefore makes it possible in practice to quickly heat the wax to a relatively high temperature at which it can be used while being perfectly fluid and effective, without causing burns to the practitioner or the user.

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Abstract

The invention relates to a wax hair remover apparatus comprising a heating device (1) permitting placing on the skin, at its application temperature, of the wax contained in the reservoir (2) of at least one wax cartridge (4). Each reservoir (2) of wax is inserted into a vessel (6) with a view to its heating, but remains at a distance from the at least lateral (8a) peripheral walls (8) of the vessel (6) with which it does not come into contact, the heating of the reservoir (2) being effected by means of essentially convection-heated air contained in the vessel (6). The vessel (6) has double walls enclosing a heat-exchange fluid. Application to the removal of hair using professional-grade low-temperature wax. <IMAGE>

Description

L'invention concerne un appareillage d'épilation à la cire basse température dure à température ambiante, et liquide à une température comprise entre 55°C et 75°C.The invention relates to a low temperature wax removal device which is hard at room temperature and liquid at a temperature between 55 ° C and 75 ° C.

On connaît déjà (brevet français 2 520 601) un appareil d'épilation comprenant un appareil de chauffage permettant de placer à sa température d'application la cire contenue dans les réservoirs d'une pluralité de cartouches munies d'un applicateur. L'appareil de chauffage est constitué d'une pluralité de manchons chauffants adaptés aux dimensions des réservoirs qui sont de taille variable, et de deux couvertures chauffantes à cordon munies d'un thermostat automatique et disposées de chaque côté des manchons. Les réservoirs des cartouches sont sensiblement parallélépipédiques de même forme que et au contact des manchons.Already known (French patent 2,520,601) a hair removal device comprising a heating device for placing at its application temperature the wax contained in the reservoirs of a plurality of cartridges provided with an applicator. The heater consists of a plurality of heating sleeves adapted to the dimensions of the reservoirs which are of variable size, and of two cord heating blankets provided with an automatic thermostat and arranged on each side of the sleeves. The cartridges reservoirs are substantially parallelepipedal in the same shape as and in contact with the sleeves.

Cet appareillage présente l'avantage d'un faible coût et est destiné à un usage domestique non intensif. Néanmoins, il ne peut pas être utilisé de façon satisfaisante par les professionnels, par exemple les instituts de beauté. En effet, il ne procure pas un chauffage précis et homogène de la cire qui est dans le réservoir des cartou­ches localement trop chaude ou trop froide. De plus, certaines cartouches sont plus chaudes que d'autres. Il en résulte d'une part un manque de fiabilité et de confort d'utilisation, et d'autre par un coût de fonctionnement permanent trop élevé. De plus, le chauffage de la cire n'étant pas parfait, son application ne l'est pas non plus, les couches de cire appliquées sur la peau n'ayant pas une épaisseur uniforme.This device has the advantage of low cost and is intended for non-intensive domestic use. However, it cannot be used satisfactorily by professionals, for example beauty salons. Indeed, it does not provide precise and uniform heating of the wax which is in the cartridge reservoir locally too hot or too cold. In addition, some cartridges are hotter than others. This results, on the one hand, in a lack of reliability and user comfort, and on the other hand, by a too high permanent operating cost. In addition, the heating of the wax is not perfect, its application is not either, the layers of wax applied to the skin not having a uniform thickness.

Par ailleurs, dans les appareillages connus (brevet français 2 560 601 et aussi demandes de brevet français 2 599 602 et 2 593 043), les réservoirs de cire sont placés en contact étroit avec les parois chauffantes des manchons ou réceptacles, voire avec les éléments chauffants eux-mêmes, le chauffage de la cire étant effectué essentiel­lement par conduction de la source de chaleur jusqu'à la cire. Ainsi, les différentes parois interposées entre les sources de chaleur (généralement sous forme d'une résistance électrique chauffante) et la cire sont le plus possible conductrices de la chaleur, et sont conformées pour épouser les contours des réservoirs de cire.Furthermore, in known apparatus (French patent 2,560,601 and also French patent applications 2,599,602 and 2,593,043), the wax tanks are placed in close contact with the heating walls of the sleeves or receptacles, or even with the elements heating themselves, the heating of the wax being carried out essentially by conduction from the heat source to the wax. Thus, the various walls interposed between the heat sources (generally in the form of an electric heating resistance) and the wax are as much as possible conductive of the heat, and are shaped to follow the contours of the wax tanks.

En particulier, les parois et la cire étant fortement conductrices, il n'est pas possible de manipuler à main nue les réservoirs de cire chauffée à la température d'applica­tion qui est supérieure à 50°C. C'est pourquoi, avec de tels apareillages, il est nécessaire d'utiliser des gants isolants pour manipuler les réservoirs. La demande de brevet français 2 599 602 prévoit même une chambre extérieure d'isolation pour manipuler le réservoir de cire. Le brevet français 2 560 601 prévoit aussi de limiter la température de la cire à 66°C.In particular, the walls and the wax being highly conductive, it is not possible to handle with bare hands the tanks of wax heated to the application temperature which is above 50 ° C. This is why, with such devices, it is necessary to use insulating gloves to handle the tanks. French patent application 2,599,602 even provides an external isolation chamber for handling the wax tank. French patent 2,560,601 also provides for limiting the temperature of the wax to 66 ° C.

On connaît par ailleurs (demande de brevet EP-0 249 911) une cartouche d'application de cire comprenant un réservoir cylindrique de révolution pouvant être rechauffé sous un courant d'eau chaude et un dispositif applicateur à rouleau.There is also known (patent application EP-0 249 911) a wax application cartridge comprising a cylindrical tank of revolution that can be heated under a stream of hot water and a roller applicator device.

L'invention vise à remédier aux inconvénients des appareillages d'épilation de l'art antérieur. Elle a donc pour objet un appareillage d'épilation qui procure un chauffage homogène de la cire des cartouches, la cire de chaque cartouche étant chauffée de façon homogène et toutes les cartouches étant à la même température. Elle a aussi pour objet de permettre un réglage précis de la température de chauffage de la cire, notamment avec une précision du degré. Un autre objet de l'invention est de procurer un tel appareillage qui peut être utilisé de façon intensive par les professionnels, c'est-à-dire qui peut soit être branché en permanence, soit être éteint et allumé régulièrement et permettre un chauffage rapide de la cire, avec des réservoirs de cire de grande capacité.The invention aims to remedy the drawbacks of hair removal devices of the prior art. It therefore relates to a hair removal device which provides a homogeneous heating of the wax of the cartridges, the wax of each cartridge being heated homogeneously and all the cartridges being at the same temperature. It also has the object of allowing a precise adjustment of the heating temperature of the wax, in particular with a precision of the degree. Another object of the invention is to provide such an apparatus which can be used intensively by professionals, that is to say which can either be permanently connected, or be switched off and on regularly and allow rapid heating. wax, with large capacity wax tanks.

Un autre objet de l'invention est de permettre de chauffer la cire à une température relativement importante, notamment de l'ordre de 72°C, sans néanmoins créer de sensation de brûlure pour l'utilisateur ou le patient, en procurant un chauffage intense mais "doux" des cartouches de cire, essentiellement par convection.Another object of the invention is to allow the wax to be heated to a relatively high temperature, in particular of the order of 72 ° C., without however creating a burning sensation for the user or the patient, by providing intense heating. but "soft" wax cartridges, mainly by convection.

Un autre objet de l'invention est d'améliorer les performances de l'épilation tout en supprimant les réactions, brûlures ou irritations de la peau épilée.Another object of the invention is to improve the performance of hair removal while suppressing the reactions, burns or irritations of the depilated skin.

Pour ce faire, l'invention propose un appareillage d'épilation à la cire comprenant un appareil de chauffage permettant de placer à sa température d'application sur la peau, la cire contenue dans le réservoir d'au moins une cartouche de cire, l'appa­reil de chauffage comprenant une cuve de réception dudit réservoir en vue de son chauffage, et des moyens de chauffage des parois de la cuve, caractérisé en ce que les dimensions respectives de la cuve et de chaque réservoir de cire sont telles que chaque réservoir inséré dans la cuve en vue de son chauffage est à distance des parois périphériques au moins latérales de la cuve avec lesquelles il n'entre pas en contact, le chauffage de réservoir étant effectué par l'intermédiaire de l'air chauffé contenu dans la cuve, essentiellement par convection. Ainsi, selon l'invention, les dimensions respectives de la cuve et de chaque réservoir de cire sont telles qu'une couche d'air chaud sépare la paroi externe de chaque réservoir de la paroi interne de la cuve.To do this, the invention provides a waxing apparatus comprising a heating device making it possible to place at its application temperature on the skin, the wax contained in the reservoir of at least one wax cartridge, l heater comprising a tank for receiving said tank for heating, and means for heating the walls of the tank, characterized in that that the respective dimensions of the tank and of each wax tank are such that each tank inserted into the tank with a view to heating it is at a distance from the at least lateral peripheral walls of the tank with which it does not come into contact, the tank heating being effected by means of the heated air contained in the tank, essentially by convection. Thus, according to the invention, the respective dimensions of the tank and of each wax tank are such that a layer of hot air separates the external wall of each tank from the internal wall of the tank.

Selon l'invention, les parois périphériques de la cuve sont des parois doubles renfer­mant un fluide caloriporteur, et les moyens de chauffage sont placés à l'extérieur de ces parois doubles périphériques. La forme de chaque réservoir est différente de celle de la cuve. En particulier, chaque réservoir est cylindrique de révolution, et la cuve est parallélépipédique.According to the invention, the peripheral walls of the tank are double walls containing a heat transfer fluid, and the heating means are placed outside these double peripheral walls. The shape of each tank is different from that of the tank. In particular, each tank is cylindrical in revolution, and the tank is parallelepiped.

L'appareillage selon l'invention comprend un appareil de chauffage destiné à chauffer simultanément une pluralité de cartouches de cire, et est caractérisé en ce qu'il comporte une cuve de chauffage commune à toutes les cartouches chauffées simulta­nément, cette cuve commune étant constituée de parois doubles périphériques et délimitant un espace interne d'air chaud dans lequel les réservoirs des cartouches peuvent être insérés en vue de leur chauffage. La cuve délimite un compartiment d'air chaud parallélépipédique unique et commun pour tous les réservoirs des cartou­ches qui ne sont pas en contact direct avec les parois doubles périphériques de cette cuve.The apparatus according to the invention comprises a heater intended for simultaneously heating a plurality of wax cartridges, and is characterized in that it comprises a heating tank common to all the cartridges heated simultaneously, this common tank being made up of double peripheral walls and delimiting an internal space of hot air in which the tanks of the cartridges can be inserted for heating. The tank delimits a single parallelepipedal hot air compartment common for all the cartridges tanks which are not in direct contact with the double peripheral walls of this tank.

Selon l'invention, l'appareil de chauffage comporte un carter dont une paroi -notam­ment la paroi supérieure- est pourvue d'orifices de passage et de maintien des cartouches, et les parois périphériques de la cuve définissent une ouverture unique accolée contre et sous cette paroi du carter pourvue d'orifices de passage et de maintien des cartouches.According to the invention, the heating apparatus comprises a casing, one wall of which, in particular the upper wall, is provided with orifices for the passage and holding of the cartridges, and the peripheral walls of the tank define a single opening placed against and under this wall of the casing provided with holes for the passage and for holding the cartridges.

Les parois doubles périphériques de la cuve sont constituées de deux enceintes interne respectivement externe imbriquées l'une dans l'autre pour former entre elles un réservoir fermé unique d'épaisseur constante renfermant un fluide calori­porteur. Les moyens de chauffage des parois périphériques sont constitués d'une plaque chauffante montée au contact et à l'extérieur d'une paroi de l'enceinte externe de la cuve. Au moins une sonde thermique pour un thermomètre et/ou pour un thermostat est montée contre la paroi opposée de la cuve. Une plaque isolante, par exemple en bakélite, est prévue sur le fond de la cuve afin d'éviter que le fond des réservoirs des cartouches vienne directement en contact avec le fond de la cuve. Les parois des réservoirs des cartouches sont en matière plastique molle isolante.The double peripheral walls of the tank consist of two internal and external enclosures nested one inside the other to form between them a single closed reservoir of constant thickness containing a heat transfer fluid. The heating means of the peripheral walls consist of a heating plate mounted in contact with and outside of a wall of the enclosure external of the tank. At least one thermal probe for a thermometer and / or for a thermostat is mounted against the opposite wall of the tank. An insulating plate, for example made of bakelite, is provided on the bottom of the tank in order to prevent the bottom of the cartridge reservoirs from coming into direct contact with the bottom of the tank. The walls of the cartridge tanks are made of soft insulating plastic.

L'appareil de chauffage comporte un thermostat réglable de régulation de la tempé­rature du fluide caloriporteur contenu dans le réservoir formé par les parois doubles de la cuve, et un thermomètre de visualisation de la température du fluide calori­porteur renfermé dans les parois doubles périphériques de la cuve. L'appareil de chauffage comporte en outre un couvercle articulé à ladite paroi du carter compor­tant les orifices de passage et de maintien des cartouches, de sorte que ce couvercle peut recouvrir les cartouches lors du chauffage. Le couvercle en position ouverte forme réceptacle de stockage de bandes de papier utiles à l'épilation. La paroi inférieure du carter de l'appareil de chauffage est perforée pour assurer une bonne ventilation.The heating device includes an adjustable thermostat for regulating the temperature of the heat-transfer fluid contained in the tank formed by the double walls of the tank, and a thermometer for displaying the temperature of the heat-transfer fluid contained in the double peripheral walls of the tank. . The heating appliance further comprises a cover hinged to said wall of the casing comprising the orifices for passing and holding the cartridges, so that this cover can cover the cartridges during heating. The lid in the open position forms a receptacle for storing paper strips useful for hair removal. The bottom wall of the heater housing is perforated to provide good ventilation.

Par ailleurs, la cire utilisée avec un appareil de chauffage selon l'invention et contenue dans chaque réservoir et appliquée sur la peau est une cire à base de résine naturelle et d'azulène. Cette cire est thermiquement isolante, c'est-à-dire qu'elle est choisie pour être relativement peu conductrice de la chaleur.Furthermore, the wax used with a heating device according to the invention and contained in each reservoir and applied to the skin is a wax based on natural resin and azulene. This wax is thermally insulating, that is to say that it is chosen to be relatively non-conductive of heat.

Ainsi, l'invention permet de fournir un appareillage procurant un chauffage "doux" par convection de la cire à une température relativement importante, notamment de l'ordre de 72°C, homogène, qui permet un réglage de la température de la cire avec une grande précision, thermostaté, et qui est rapidement opérationnel après une mise en service à froid. En utilisant des cartouches de cire constituées chacune d'un réservoir de cire prolongé d'un dispositif applicateur à rouleau, la cire chauffée à environ 72°C est appliquée sur la peau à une température qui facilite le gonflement du pore sur lequel le poil est situé sans provoquer ni douleur ni irritation. Ainsi, le poil sera arraché avec son bulbe.Thus, the invention makes it possible to provide an apparatus providing “gentle” heating by convection of the wax at a relatively high temperature, in particular of the order of 72 ° C., homogeneous, which allows the temperature of the wax to be adjusted with high precision, thermostatically controlled, and quickly operational after cold commissioning. Using wax cartridges each consisting of an extended wax reservoir of a roller applicator, the wax heated to about 72 ° C is applied to the skin at a temperature which facilitates the swelling of the pore on which the hair is located without causing any pain or irritation. Thus, the hair will be pulled out with its bulb.

Les dispositions de l'invention permettent à la praticienne d'utiliser de la cire chauffée à 72°C environ sans aucune sensation de brûlure, pour elle comme pour sa cliente. Dans les dispositifs de l'art antérieur, il était impossible d'utiliser une telle température de cire car celle-ci aurait inévitablement provoqué une impression de brûlure, et à la praticienne et à sa cliente, puisque le chauffage étant réalisé par conduction, les parois des réservoirs et la cire elle-même étaient conductrices de la chaleur. Au contraire, selon l'invention, les parois du réservoir et la cire elle-même sont isolantes de la chaleur, ce qui permet de diminuer les sensations de brûlure pour la praticienne comme pour sa cliente.The provisions of the invention allow the practitioner to use wax heated to about 72 ° C without any burning sensation, for her as for her client. In the devices of the prior art, it was impossible to use a such a wax temperature because it would inevitably have caused a burning sensation, and for the practitioner and her client, since the heating being carried out by conduction, the walls of the reservoirs and the wax itself were conductive of heat. On the contrary, according to the invention, the walls of the reservoir and the wax itself are insulating from the heat, which makes it possible to reduce the burning sensations for the practitioner as for her client.

Ainsi, le choix d'une matière plastique molle constitutive des parois du réservoir permet, pour une même température, de diminuer considérablement la sensation de brûlure lorsque l'on tient en main ce réservoir. En pratique, il a été constaté que l'on peut gagner ainsi environ 5°C. Par ailleurs, le chauffage par convection s'est révélé beaucoup plus efficace, doux et homogène que le chauffage par con­duction. Il procure également l'avantage de permettre le chauffage ou le réchauffage des dispositifs applicateurs à rouleau des cartouches par dessus lesquels on referme le couvercle de l'appareil de chauffage. Ainsi, lorsque l'on ouvre le couvercle et que l'on extrait une cartouche en vue de son utilisation, la cire éventuellement déjà présente sur le rouleau applicateur est directement utilisable et à bonne tempé­rature.Thus, the choice of a soft plastic material constituting the walls of the tank makes it possible, for the same temperature, to considerably reduce the burning sensation when this tank is held in hand. In practice, it has been found that one can thus gain approximately 5 ° C. Furthermore, convection heating has proven to be much more efficient, gentle and homogeneous than conduction heating. It also provides the advantage of allowing the heating or reheating of the roller applicator devices of the cartridges over which the cover of the heater is closed. Thus, when the lid is opened and a cartridge is extracted for use, the wax, possibly already present on the applicator roller, can be used directly and at the right temperature.

Egalement, la forme cylindrique de révolution des réservoirs permet une diffusion plus homogène de la cire, la température du fond du réservoir étant la même que celle de sa partie supérieure, aucun point chaud ou froid n'étant créé dans le réser­voir de cire. De plus, cette forme cylindrique de révolution permet l'utilisation d'un col de grand diamètre pour le réservoir, et donc facilite le remplissage du réservoir par la praticienne elle-même. En pratique, l'appareillage selon l'invention comporte par exemple quatre ouvertures ménagées dans la paroi supérieure de l'appareil de chauffage pour recevoir simultanément quatre cartouches pouvant contenir environ 400 g de cire au total.Also, the cylindrical shape of revolution of the tanks allows a more homogeneous diffusion of the wax, the temperature of the bottom of the tank being the same as that of its upper part, no hot or cold spot being created in the wax tank. In addition, this cylindrical shape of revolution allows the use of a large diameter neck for the reservoir, and therefore facilitates the filling of the reservoir by the practitioner herself. In practice, the apparatus according to the invention comprises for example four openings formed in the upper wall of the heating device to simultaneously receive four cartridges which can contain approximately 400 g of wax in total.

Le fluide caloriporteur utilisé est par exemple constitué de 300 ml d'huile résistant à haute température, notamment ne subissant aucune dégradation à une température supérieure ou égale à 200°C. L'utilisation simultanée d'un thermomètre et d'un thermostat réglable permet, en combinaison avec les caractéristiques de l'invention, d'obtenir un réglage de la température de la cire avec une précision du dégré qui n'a jamais été obtenue antérieurement avec les dispositifs à chauffage conductifs et thermostats automatiques.The heat transfer fluid used for example consists of 300 ml of oil resistant to high temperature, in particular not undergoing any degradation at a temperature greater than or equal to 200 ° C. The simultaneous use of a thermometer and an adjustable thermostat makes it possible, in combination with the characteristics of the invention, to obtain an adjustment of the temperature of the wax with an accuracy of degree which has never been obtained before. with conductive heating devices and automatic thermostats.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante de son mode de réalisation préférentiel, qui se réfère aux figures annexées dans lesquelles :

  • - la figure 1 est une vue en élévation d'un appareil de chauffage d'un appareillage d'épilation selon l'invention, le couvercle étant fermé.
  • - la figure 2 est une vue en coupe verticale longitudinale d'un appareil de chauf­fage d'un appareillage d'épilation selon l'invention, le couvercle n'étant pas représenté.
  • - la figure 3 est une vue de dessus de la cuve d'un appareil de chauffage d'un appareillage selon l'invention.
  • - la figure 4 est une vue en élévation selon la flèche F1 de la figure 3 d'une cuve d'un appareillage d'épilation selon l'invention.
  • - la figure 5 est une vue en élévation selon la flèche F2 de la figure 3 d'une cuve d'un appareillage d'épilation selon l'invention.
  • - la figure 6 est une vue schématique en perspective d'un appareillage selon l'invention, avec une seule cartouche de cire.
Other characteristics and advantages of the invention will appear on reading the following description of its preferred embodiment, which refers to the appended figures in which:
  • - Figure 1 is an elevational view of a heater of a hair removal device according to the invention, the cover being closed.
  • - Figure 2 is a longitudinal vertical sectional view of a heater of a hair removal device according to the invention, the cover not being shown.
  • - Figure 3 is a top view of the tank of a heater of an apparatus according to the invention.
  • - Figure 4 is an elevational view along arrow F1 of Figure 3 of a tank of a hair removal device according to the invention.
  • - Figure 5 is an elevational view along arrow F2 of Figure 3 of a tank of a hair removal device according to the invention.
  • - Figure 6 is a schematic perspective view of an apparatus according to the invention, with a single wax cartridge.

L'invention concerne un appareillage d'épilation à la cire comprenant un appareil 1 de chauffage permettant de placer à sa température d'application sur la peau, la cire contenue dans le réservoir 2 d'au moins une cartouche de cire 4. Chaque cartouche de cire 4 est constituée d'un réservoir 2 prolongé d'un dispositif applicateur à rouleau 3 connu en soi, par exemple de la demande de brevet européen EP-A-0 249 911. Le rouleau 5 d'un tel dispositif applicateur 3 est muni de rainures et/ou nervures en spirales pour faciliter l'application de la cire.The invention relates to a waxing device comprising a heater 1 for placing at its application temperature on the skin, the wax contained in the reservoir 2 of at least one wax cartridge 4. Each cartridge of wax 4 consists of a reservoir 2 extended by a roller applicator device 3 known per se, for example from European patent application EP-A-0 249 911. The roller 5 of such an applicator device 3 is provided with spiral grooves and / or ribs to facilitate the application of the wax.

L'appareil 1 de chauffage comprend une cuve 6 de réception des réservoirs 2 des cartouches 4 en vue de leur chauffage, et des moyens 7 de chauffage des parois 8 de la cuve 6.The heating device 1 comprises a tank 6 for receiving the reservoirs 2 of the cartridges 4 for their heating, and means 7 for heating the walls 8 of the tank 6.

Selon l'invention, les parois périphériques 8 -notamment les parois périphériques latérales 8a et le fond 8b- de la cuve 6 sont des parois doubles 8 renfermant un fluide caloriporteur, et les moyens 7 de chauffage sont placés à l'extérieur de ces parois doubles périphériques 8.According to the invention, the peripheral walls 8-notably the lateral peripheral walls 8a and the bottom 8b- of the tank 6 are double walls 8 containing a heat-transfer fluid, and the heating means 7 are placed outside these walls dual peripherals 8.

Selon l'invention, les dimensions respectives de la cuve 6 et de chaque réservoir 2 de cire sont telles que chaque réservoir 2 de cire inséré dans la cuve 6 en vue de son chauffage est éloigné à distance des parois périphériques 8 -notamment au moins des parois périphériques latérales 8a- de la cuve 6 avec lesquelles il n'entre pas en contact, le chauffage de ce réservoir 2 étant effectué par l'intermédiaire de l'air chauffé contenu dans la cuve 6 entre la paroi extérieure 9 du réservoir 2 et les parois périphériques 8 de la cuve.According to the invention, the respective dimensions of the tank 6 and of each wax tank 2 are such that each wax tank 2 inserted into the tank 6 for heating purposes is distant from the peripheral walls 8 -in particular at least from the lateral peripheral walls 8a- of the tank 6 with which it does not come into contact, the heating of this tank 2 being effected by means of the heated air contained in the tank 6 between the outer wall 9 of the tank 2 and the peripheral walls 8 of the tank.

Ainsi, la cire contenue dans chaque réservoir 2 est chauffée essentiellement par convection, notamment par convection naturelle.Thus, the wax contained in each tank 2 is heated essentially by convection, in particular by natural convection.

Selon l'invention, la forme de chaque réservoir 2 est différente de celle de la cuve 6. En particulier, chaque réservoir 2 est cylindrique de révolution, et la cuve 6 est globalement parallélépipédique.According to the invention, the shape of each tank 2 is different from that of the tank 6. In particular, each tank 2 is cylindrical in revolution, and the tank 6 is generally parallelepiped.

Selon l'invention, la cire contenue dans chaque réservoir 2 et appliquée sur la peau contient de l'azulène. Le pourcentage d'azulène est de l'ordre de 1‰. La cire contient par ailleurs de la pure résine de pin naturelle, notamment de qualité alimen­taire, de la résine de pin modifiée, des huiles végétales et/ou minérales, des huiles essentielles (calmantes, anesthésiantes...)According to the invention, the wax contained in each reservoir 2 and applied to the skin contains azulene. The percentage of azulene is of the order of 1 ‰. The wax also contains pure natural pine resin, especially of food grade, modified pine resin, vegetable and / or mineral oils, essential oils (calming, anesthetic ...)

L'appareillage d'épilation représenté sur les figures comprend un appareil 1 de chauffage permettant de chauffer simultanément une pluralité de cartouches 4 de cire. Selon l'invention, cet appareil 1 de chauffage comporte une cuve 6 de chauffage commune à toutes les cartouches 4, constituée de parois doubles périphé­riques 8, et délimitant un espace 10 interne d'air chaud à l'intérieur de la cuve 6 dans lequel les réservoirs 2 des cartouches 4 peuvent être insérés en vue de leur chauffage. En particulier, l'appareil 1 de chauffage selon l'invention est constitué pour permettre le chauffage de quatre cartouches 4 de cire. Les parois doubles périphériques 8 de la cuve 6 délimitent un compartiment 10 d'air chaud parallélépi­pédique unique et commun pour tous les réservoirs 2 des cartouches 4. Ces réservoirs 2 ne sont pas en contact direct avec les parois doubles périphériques 8 de la cuve 6.The hair removal device shown in the figures comprises a heater 1 for simultaneously heating a plurality of cartridges 4 of wax. According to the invention, this heating device 1 comprises a heating tank 6 common to all the cartridges 4, consisting of double peripheral walls 8, and delimiting an internal space 10 of hot air inside the tank 6 in which the tanks 2 of the cartridges 4 can be inserted for heating. In particular, the heating device 1 according to the invention is constituted to allow the heating of four wax cartridges 4. The peripheral double walls 8 of the tank 6 delimit a compartment 10 of single parallelepipedal hot air common to all the tanks 2 of the cartridges 4. These tanks 2 are not in direct contact with the peripheral double walls 8 of the tank 6.

L'appareil 1 de chauffage selon l'invention comporte un carter 11 extérieur. Ce carter est réalisé en acier et recouvert d'une peinture cuite au four, de telle sorte qu'il peut être aisément nettoyé grâce à des solvants ou produits détergents agressifs, par exemple du type trichloroéthylène. Le carter 11 de l'appareil 1 de chauffage constitue une boîte fermée parallélépipédique qui renferme et supporte la cuve 6 et ses différents accessoires. Ce carter 11 comporte une paroi 12 -notamment horizontale supérieure- pourvue d'orifices 13 de passage et de maintien des cartouches 4. Ces orifices 13 ont une forme correspondant à celle de la section droite trans­versale des réservoirs 2 des cartouches 4, notamment circulaire. Lorsque les car­touches 4 de cire sont en place dans l'appareil 1 de chauffage (figure 2), les réser­voirs 2 des cartouches 4 de cire s'étendent dans la cuve 6 sous la paroi horizontale supérieure 12 du carter 11. Au contraire, les dispositifs applicateurs à rouleau 3 des cartouches 4 saillent à l'extérieur et au-dessus de la paroi horizontale supérieure 12 du carter 11. Le diamètre des orifices 13 est légèrement supérieur au diamètre externe des réservoirs 2 pour faciliter leur insertion dans la cuve 6 à travers ces orifices 13, tout en permettant une certaine circulation limitée de l'air chaud de la cuve 6 vers le haut à travers la paroi horizontale supérieure 12 autour des dispo­sitifs applicateurs à rouleau 3.The heating device 1 according to the invention comprises an outer casing 11. This casing is made of steel and covered with a paint baked in the oven, so that it can be easily cleaned using solvents or aggressive detergents, for example of the trichlorethylene type. The casing 11 of the heating appliance 1 constitutes a closed rectangular box which encloses and supports the tank 6 and its various accessories. This casing 11 has a wall 12 - in particular a horizontal top - provided with orifices 13 for passing and holding the cartridges 4. These orifices 13 have a shape corresponding to that of the cross section of the tanks 2 of the cartridges 4, in particular circular. When the wax cartridges 4 are in place in the heater 1 (FIG. 2), the tanks 2 of the wax cartridges 4 extend into the tank 6 under the upper horizontal wall 12 of the casing 11. On the contrary, the roller applicator devices 3 of the cartridges 4 protrude outside and above the upper horizontal wall 12 of the casing 11. The diameter of the orifices 13 is slightly greater than the external diameter of the tanks 2 to facilitate their insertion into the tank 6 to through these orifices 13, while allowing a certain limited circulation of the hot air from the tank 6 upwards through the upper horizontal wall 12 around the roller applicator devices 3.

L'appareil 1 de chauffage comporte un couvercle 14 articulé au carter 11. Ce couver­cle 14 est conformé pour recouvrir les dispositifs applicateurs à rouleau 3 des cartou­ches 4 lors du chauffage, lorsqu'il est placé en position fermée. Ainsi, ce couvercle 14 forme en position fermée, avec la paroi 12 du carter 11 horizontale supérieure pourvue d'orifices 13, un compartiment supérieur dans lequel l'air chaud en prove­nance de la cuve 6 peut circuler pour chauffer également les dispositifs applicateurs à rouleau 3.The heating device 1 comprises a cover 14 hinged to the casing 11. This cover 14 is shaped to cover the roller applicator devices 3 of the cartridges 4 during heating, when it is placed in the closed position. Thus, this cover 14 forms in the closed position, with the wall 12 of the upper horizontal casing 11 provided with orifices 13, an upper compartment in which the hot air coming from the tank 6 can circulate to also heat the roller applicator devices. 3.

Les parois périphériques 8 de la cuve 6 définissent une ouverture 15 unique accolée contre et sous la paroi 12 horizontale supérieure du carter 11 dans laquelle les orifices 13 de passage et de maintien des cartouches 4 sont ménagés. Néamoins un interstice de passage de l'air (de l'ordre de 2 mm de hauteur) entre la cuve 6 et la paroi 12 du carter 11 est prévu pour permettre une faible circulation d'air.The peripheral walls 8 of the tank 6 define a single opening 15 joined against and under the upper horizontal wall 12 of the casing 11 in which the orifices 13 for passing and holding the cartridges 4 are provided. Nevertheless, an air passage interstice (of the order of 2 mm in height) between the tank 6 and the wall 12 of the casing 11 is provided to allow low air circulation.

Ainsi, la cuve 6, la paroi 12 horizontale supérieure du carter 11, et le couvercle 14 forment deux compartiments de chauffage par circulation d'air chaud : un compar­timent inférieur 10 délimité par les parois 8 périphériques de la cuve 6 et par la paroi 12 horizontale supérieure du carter 11 et situé sous cette paroi 12 pour recevoir les réservoirs 2 des cartouches 4, et un compartiment supérieur délimité par le couvercle 14 bombé et cette paroi 12 horizontale supérieure, et situé au-dessus de cette paroi 12.Thus, the tank 6, the upper horizontal wall 12 of the casing 11, and the cover 14 form two heating compartments by circulation of hot air: a lower compartment 10 delimited by the peripheral walls 8 of the tank 6 and by the wall 12 upper horizontal of the casing 11 and located under this wall 12 to receive the reservoirs 2 of the cartridges 4, and an upper compartment delimited by the domed cover 14 and this upper horizontal wall 12, and situated above this wall 12.

Le couvercle 14 est bombé pour recouvrir les dispositifs applicateurs 3, et a par exemple une section droite transversale en forme de U, ou de V, ou de trapèze ouvert. Le couvercle 14 est articulé par un des ces bords longitudinaux autour d'un axe horizontal longitudinal 16 au voisinage d'une arrête horizontale longitudinale supérieure du carter 11 formée par la paroi 12 horizontale supérieure et une de ses parois 17 verticales longitudinales. Pour ce faire, on prévoit par exemple deux plaquettes 18 soudées au carter 11 respectivement à chaque extrémité de ladite arrête pour s'étendre légèrement en saillie au-dessus de la paroi 12 horizontale supérieure. Chaque plaquette 18 est pourvue d'un alésage horizontal longitudinal débouchant dans lequel est inséré à pivotement libre un goujon ou vis 19 prolongeant horizontalement et longitudinalement le bord horizontal et longitudinal correspondant du couvercle 14.The cover 14 is curved to cover the applicator devices 3, and has for example a cross section in the shape of a U, or V, or an open trapezium. The cover 14 is articulated by one of these longitudinal edges around a longitudinal horizontal axis 16 in the vicinity of an upper longitudinal horizontal edge of the casing 11 formed by the upper horizontal wall 12 and one of its longitudinal vertical walls 17. To do this, there are for example two plates 18 welded to the casing 11 respectively at each end of said stopper to extend slightly projecting above the upper horizontal wall 12. Each plate 18 is provided with a longitudinal horizontal bore opening into which is inserted with free pivoting a stud or screw 19 extending horizontally and longitudinally the corresponding horizontal and longitudinal edge of the cover 14.

La cuve 6 est de forme parallélépipédique. Ses parois périphériques 8 sont constituées de parois latérales verticales 8a et d'un fond 8b horizontal inférieur et délimitent une ouverture supérieure 15 accolée à la paroi 12 horizontale supérieure du carter 11. La cuve 6 est associée rigidement au carter 11, notamment à la paroi horizontal supérieure 12. Pour ce faire, on prévoit par exemple des pattes 20 solidaires des parois latérales verticales 8a et s'étendant horizontalement vers l'extérieur de la cuve 6 à partir du bord supérieur 21 des parois latérales verticales 8a. Ces pattes 20 de fixation s'étendent immédiatement sous et au contact de la paroi 12 horizontale supérieure du carter 11 à laquelle elles sont fixées grâce à des moyens de fixation 48 appropriés tels que rivets, boulons, ...The tank 6 is of parallelepiped shape. Its peripheral walls 8 consist of vertical side walls 8a and a bottom horizontal bottom 8b and delimit an upper opening 15 attached to the upper horizontal wall 12 of the casing 11. The tank 6 is rigidly associated with the casing 11, in particular with the wall upper horizontal 12. To do this, there are for example tabs 20 integral with the vertical side walls 8a and extending horizontally towards the outside of the tank 6 from the upper edge 21 of the vertical side walls 8a. These fixing lugs 20 extend immediately under and in contact with the upper horizontal wall 12 of the casing 11 to which they are fixed by means of suitable fixing means 48 such as rivets, bolts, etc.

Les parois doubles périphériques 8 de la cuve 6 sont constituées de deux enceintes interne 22 respectivement externe 23, imbriquées l'une dans l'autre, pour former un réservoir 24 fermé unique d'épaisseur constante de fluide caloriporteur. Les parois doubles périphériques 8 de la cuve 6 sont donc constituées d'une enceinte interne métallique 22 délimitant l'espace 10 interne d'air chaud, et d'une enceinte externe métallique 23 s'étendant autour de l'enceinte interne 22 pour former, entre ces deux enceintes 22, 23, un réservoir 24 fermé étanche unique d'épaisseur constante de fluide caloriporteur. Le fluide caloriporteur inséré dans ce réservoir 24 formé par les deux enceintes 22, 23, est constitué par de l'huile susceptible de résister à haute température, notamment à une température supérieure à 200°C. L'enceinte externe 23 est munie d'un orifice 25 de remplissage obturé par un bouchon amovible 26.The double peripheral walls 8 of the tank 6 are made up of two internal and external respectively 22 enclosures 23, nested one inside the other, to form a single closed reservoir 24 of constant thickness of heat-transfer fluid. The peripheral double walls 8 of the tank 6 therefore consist of an enclosure internal metal 22 delimiting the internal space 10 of hot air, and an external metallic enclosure 23 extending around the internal enclosure 22 to form, between these two enclosures 22, 23, a single sealed closed reservoir 24 d constant thickness of heat transfer fluid. The heat transfer fluid inserted into this reservoir 24 formed by the two enclosures 22, 23, consists of oil capable of withstanding high temperature, in particular at a temperature above 200 ° C. The external enclosure 23 is provided with a filling orifice 25 closed by a removable plug 26.

Les moyens 7 de chauffage des parois périphériques 8 sont constitués d'une plaque chauffante électrique 7 montée au contact et à l'extérieur d'une paroi 27 latérale, notamment de plus grande longueur, de l'enceinte externe 23 de la cuve 6, de sorte que le fluide caloriporteur renfermé dans le réservoir 24 est chauffé par convection et circulation naturelle à l'intérieur de ce réservoir 24 formé par les parois doubles périphériques 8. La plaque chauffante électrique 7 est montée d'un côté de la cuve 6 contre cette paroi extérieure latérale verticale 27 de l'enceinte externe 23. L'appa­reil 1 de chauffage comporte par ailleurs au moins une sonde thermique 28, 29 montée contre la paroi latérale verticale extérieure 30 opposée de l'enceinte externe 23 de la cuve 6.The means 7 for heating the peripheral walls 8 consist of an electric heating plate 7 mounted in contact with and outside a side wall 27, in particular of greater length, of the external enclosure 23 of the tank 6, so that the heat transfer fluid contained in the tank 24 is heated by convection and natural circulation inside this tank 24 formed by the double peripheral walls 8. The electric heating plate 7 is mounted on one side of the tank 6 against this vertical lateral external wall 27 of the external enclosure 23. The heating appliance 1 also comprises at least one thermal probe 28, 29 mounted against the external vertical lateral wall 30 opposite the external enclosure 23 of the tank 6.

La plaque chauffante électrique 7 est constituée d'une résistance électrique chauf­fante noyée dans un matériau synthétique conducteur et recouvert d'un étui métal­lique plat rectangulaire. Cette plaque chauffante 7 rectangulaire est associée rigi­dement, mais de façon amovible à la paroi latérale verticale extérieure 27 de l'en­ceinte externe 23 grâce à quatre pattes de fixation 31 soudées à cette paroi 27 par une de leur extrémité et formant avec leur autre extrémité et la paroi 27 un interstice dans lequel la plaque 7 est insérée. La plaque 7 chauffante rectangulaire a des dimensions telles qu'elle s'étend sur la majeure partie de la paroi extérieure 27 de la cuve 6. La résistance électrique de la plaque chauffante 7 est reliée électri­quement par des câbles de connexion électriques 32 à une alimentation électrique, notamment le secteur à 220 V alternatif.The electric heating plate 7 consists of an electric heating resistor embedded in a conductive synthetic material and covered with a flat rectangular metal case. This rectangular heating plate 7 is rigidly associated, but removably with the external vertical side wall 27 of the external enclosure 23 by means of four fixing lugs 31 welded to this wall 27 by one of their ends and forming with their other end and the wall 27 a gap in which the plate 7 is inserted. The rectangular heating plate 7 has dimensions such that it extends over the major part of the outer wall 27 of the tank 6. The electrical resistance of the heating plate 7 is electrically connected by electrical connection cables 32 to a power supply electric, especially the AC 220 V sector.

Un voyant lumineux 33 est connecté en parallèle aux bornes de la résistance élec­trique pour indiquer son fonctionnement. Par ailleurs, la phase du secteur est reliée à la résistance électrique de la plaque chauffante 7 par l'intermédiaire d'un interrup­teur 34 et d'un thermostat 35 réglable de régulation de la température du fluide caloriporteur contenu dans le réservoir 24. Ce thermostat agit sur l'alimentation électrique de la plaque chauffante 7. Ce thermostat 35 réglable est commandé par une sonde thermique 28 à laquelle il est électriquement connecté par un fil 47, sonde 28 qui est associée rigidement mais de façon amovible à la paroi 30 de l'enceinte externe 23 opposée à celle 27 sur laquelle la plaque chauffante 7 est fixée. Ce thermostat 35 réglable permet donc de régler à volonté et de réguler la température de l'huile contenue dans le réservoir 24 formé par les parois doubles périphériques 8 de la cuve 6. Par ailleurs, l'appareil 1 de chauffage selon l'invention comporte un thermomètre 36 connecté par un fil conducteur 46 à une deuxième sonde thermique 29 associée de façon rigide et amovible à la même paroi 30 que la sonde thermique 28 du thermostat 35. Le thermomètre 36 permet donc d'indiquer à l'utilisateur la température réelle de l'huile. L'interrupteur 34, le thermostat 35 et la résistance électrique de la plaque chauffante 7 sont montés en série comme cela apparait de la figure 2. Les deux sondes thermiques 28, 29 sont associées rigidement mais de façon amovible au contact de la paroi 30 grâce à une même patte de fixation 37 soudée à chacune de ses extrémités à la paroi 30 et ménageant dans sa partie médiane, avec cette paroi 30, un interstice dans lequel les sondes 28, 29 sont insérées.An indicator light 33 is connected in parallel to the terminals of the electrical resistance to indicate its operation. Furthermore, the phase of the sector is connected to the electrical resistance of the heating plate 7 by means of a switch 34 and an adjustable thermostat 35 for regulating the temperature of the fluid. heat carrier contained in the tank 24. This thermostat acts on the electrical supply of the heating plate 7. This adjustable thermostat 35 is controlled by a thermal probe 28 to which it is electrically connected by a wire 47, probe 28 which is rigidly associated but removably to the wall 30 of the external enclosure 23 opposite that 27 on which the heating plate 7 is fixed. This adjustable thermostat 35 therefore makes it possible to adjust at will and regulate the temperature of the oil contained in the reservoir 24 formed by the double peripheral walls 8 of the tank 6. Furthermore, the heating device 1 according to the invention comprises a thermometer 36 connected by a conducting wire 46 to a second thermal probe 29 rigidly and removably associated with the same wall 30 as the thermal probe 28 of the thermostat 35. The thermometer 36 therefore makes it possible to indicate to the user the actual temperature oil. The switch 34, the thermostat 35 and the electrical resistance of the heating plate 7 are connected in series as shown in FIG. 2. The two thermal probes 28, 29 are associated rigidly but removably in contact with the wall 30 thanks to the same fixing lug 37 welded at each of its ends to the wall 30 and providing in its middle part, with this wall 30, a gap in which the probes 28, 29 are inserted.

L'appareil 1 de chauffage selon l'invention comporte une plaque isolante 38 -notam­ment en bakélite (marque déposée)- qui s'étend à l'intérieur de la cuve 6 sur le fond 8b de cette cuve 6 afin d'éviter que le fond 39 des réservoirs 2 des cartouches 4 vienne directement au contact du fond 8b de la cuve 6. Ainsi, aucune partie des cartouches 4 et de leur réservoir 2 n'est au contact de l'enceinte intérieure métal­lique 22 chaude de la cuve 6. Les réservoirs 2 ont leur fond 39 qui repose sur cette plaque isolante 38.The heating device 1 according to the invention comprises an insulating plate 38 - in particular bakelite (registered trademark) - which extends inside the tank 6 on the bottom 8b of this tank 6 in order to prevent the bottom 39 of the tanks 2 of the cartridges 4 comes directly into contact with the bottom 8b of the tank 6. Thus, no part of the cartridges 4 and their tank 2 is in contact with the hot metallic inner enclosure 22 of the tank 6. The tanks 2 have their bottom 39 which rests on this insulating plate 38.

Les parois 9 des réservoirs 2 des cartouches 4 de cire sont en matière plastique molle isolante résistant à la chaleur, notamment à une température supérieure à 100°C.The walls 9 of the reservoirs 2 of the wax cartridges 4 are made of soft insulating plastic material resistant to heat, in particular at a temperature above 100 ° C.

Les réservoirs 2 des cartouches 4 et les orifices 13 de passage et de maintien mé­nagés sur le carter 11 de l'appareil 1 de chauffage ont tous les mêmes dimensions. Ainsi, on peut utiliser indifféremment l'une ou l'autre des différente cartouches 4. En particulier, lorsque la cire contenue dans le réservoir 2 de la cartouche 4 en cours d'utilisation se refroidit, il suffit de la replacer dans la cuve 6 pour réchauf­ fage, et d'utiliser à la place une autre cartouche 4 dont la cire est à bonne tempé­rature.The reservoirs 2 of the cartridges 4 and the orifices 13 for passage and holding formed on the casing 11 of the heating device 1 all have the same dimensions. Thus, one or the other of the different cartridges 4 can be used interchangeably. In particular, when the wax contained in the reservoir 2 of the cartridge 4 in use cools, it suffices to replace it in the tank 6 for warmer fage, and instead use another cartridge 4 whose wax is at the right temperature.

Selon l'invention, le réservoir 2 de chaque cartouche 4 de cire est associé de façon amovible au dispositif applicateur à rouleau 3 correspondant et comporte un orifice de remplissage 40 communiquant avec ce dispositif applicateur 3 qui le prolonge. L'orifice de remplissage 40 a un diamètre suffisant pour qu'il puisse être rempli par de la cire neuve par les praticiennes. Par exemple, ce diamètre de l'orifice de remplissage 40 est supérieur à 15 mm, notamment de l'ordre de 20 mm à 25 mm.According to the invention, the reservoir 2 of each wax cartridge 4 is removably associated with the corresponding roller applicator device 3 and comprises a filling orifice 40 communicating with this applicator device 3 which extends it. The filling orifice 40 has a sufficient diameter so that it can be filled with new wax by practitioners. For example, this diameter of the filling orifice 40 is greater than 15 mm, in particular of the order of 20 mm to 25 mm.

La paroi inférieure horizontale 45 du carter 11 est perforée afin d'assurer une bonne ventilation notamment pour éviter une surchauffe de la résistance de chauffage et des accessoires électriques de fonctionnement (thermostat, fusible, thermomètre...). Cette paroi inférieure 45 est constituée d'une grille perforée portant des ventouses 44, rivetée aux parois verticales 17.The horizontal lower wall 45 of the casing 11 is perforated in order to ensure good ventilation, in particular to avoid overheating of the heating resistance and of the electrical operating accessories (thermostat, fuse, thermometer, etc.). This lower wall 45 consists of a perforated grid carrying suction cups 44, riveted to the vertical walls 17.

De part sa forme bombée, le couvercle 14 de l'appareil 1 de chauffage en position ouverte forme réceptacle de stockage de bandes de papier utiles à l'épilation.Due to its domed shape, the cover 14 of the heating device 1 in the open position forms a receptacle for storing strips of paper useful for hair removal.

L'appareillage d'épilation représenté permet le chauffage de quatre cartouches 4 de cire dont les réservoirs 2 peuvent contenir chacun de l'ordre de 100 ml de cire. La plaque chauffante 7 a une longueur de l'ordre de 19 cm sur une largeur de l'ordre de 5 cm. La résistance blindée qu'elle comporte a une puissance électrique de l'ordre de 200 W sous 230 V alternatif. L'enceinte externe métallique 23 de la cuve 6 est reliée à la terre par un câble 41. Le thermomètre 36 est gradué de 0 à 120°C. Le thermostat 35 comporte une molette de réglage 42 graduée de 0 à 10. Un fusible 43 thermique dont le point de fusion est de l'ordre de 109°C est monté en série entre le thermostat 35 et la résistance électrique 7. Le réservoir 24 d'huile formé par les parois doubles périphériques 8 de la cuve 6 entre les parois verticales et les fonds respectifs des enceintes internes 22 et externes 23 a une capacité de l'ordre de 300 ml d'huile. Les différents fils électriques utilisés pour les connexions à l'intérieur du carter 11 sont prévus pour résister à haute tempé­rature. Quatre ventouses 44 sont prévues sous le carter 11 pour assurer la stabilité de l'appareil 1 de chauffage.The depilation apparatus shown allows the heating of four cartridges 4 of wax, the reservoirs 2 of which can each contain about 100 ml of wax. The heating plate 7 has a length of the order of 19 cm on a width of the order of 5 cm. The shielded resistor it contains has an electrical power of the order of 200 W at 230 V AC. The external metallic enclosure 23 of the tank 6 is connected to the earth by a cable 41. The thermometer 36 is graduated from 0 to 120 ° C. The thermostat 35 includes an adjustment wheel 42 graduated from 0 to 10. A thermal fuse 43 whose melting point is of the order of 109 ° C. is mounted in series between the thermostat 35 and the electrical resistance 7. The tank 24 of oil formed by the double peripheral walls 8 of the tank 6 between the vertical walls and the respective bottoms of the internal 22 and external 23 enclosures has a capacity of the order of 300 ml of oil. The various electrical wires used for the connections inside the casing 11 are provided to withstand high temperature. Four suction cups 44 are provided under the casing 11 to ensure the stability of the heater 1.

L'appareillage d'épilation selon l'invention est parfaitement sûr et fiable, et peut ainsi être destiné à un usage professionnel. De plus, les essais ont montré qu'il permet d'obtenir un chauffage homogène et "doux" par convection de la cire, avec une précision en température de l'ordre du degré. Cela permet notamment d'adapter la température de chauffe en fonction de la cire effectivement utilisée.The epilation device according to the invention is perfectly safe and reliable, and can thus be intended for professional use. In addition, tests have shown that provides homogeneous and "gentle" heating by convection of the wax, with temperature accuracy of the order of a degree. This allows in particular to adapt the heating temperature according to the wax actually used.

Des essais ont été réalisés avec l'appareil d'épilation selon l'invention. On a utilisé de la cire à base de cire naturelle, de résine naturelle et d'azulène (cyclopenta-­cycloheptène de l'huile de camomille). Les essais se sont déroulés dans les conditions suivantes:
- on branche l'appareil 1 sur le secteur, et on y insère quatre cartouches 4 pleines, de 100 ml, comprenant réservoir 2 et dispositif applicateur à rouleau 3. On actionne l'interrupteur 34 pour mettre l'appareil 1 de chauffage en fonctionnement.
- le thermostat 35 est réglé au départ sur la position maximale 10. Le voyant lumineux 33 est allumé.
- le couvercle 14 est refermé.
- au bout de 20 à 30 min, on constate que l'huile située dans les parois doubles périphériques 8 atteint une température de l'ordre de 120°C.
- on redescend ensuite le thermostat 35 en position 7 pour laquelle la température de l'huile est de l'ordre de 95°C.Tests have been carried out with the hair removal device according to the invention. Wax based on natural wax, natural resin and azulene (cyclopenta-cycloheptene from chamomile oil) was used. The tests were carried out under the following conditions:
- the appliance 1 is connected to the mains, and four full 100 ml cartridges 4 are inserted into it, comprising reservoir 2 and roller applicator device 3. The switch 34 is actuated to put the heating appliance 1 into operation .
- the thermostat 35 is initially set to the maximum position 10. The indicator light 33 is on.
- the cover 14 is closed.
- After 20 to 30 min, it can be seen that the oil located in the double peripheral walls 8 reaches a temperature of the order of 120 ° C.
- Thermostat 35 is then lowered to position 7 for which the oil temperature is of the order of 95 ° C.

Il a été constaté que la température de la cire dans ces conditions est de 72°C au bout de 20 à 30 min, et qu'elle reste très précisément à cette température si on laisse les cartouches 4 dans l'appareil 1 de chauffage. Malgré cette température de cire relativement élevée, il a été constaté que les cartouches 4 sont utilisables à main nue sans aucune douleur ni brûlure, et qu'elles permettent d'appliquer sur la peau une couche extrêmement fine de cire. La relativement haute température de la cire permet la dilatation des pores de la peau et un meilleur arrachage du bulbe du poil sans risque de rupture de celui-ci. Après application de la cire en une seule couche fine on pose une bande de papier découpée à la dimension de la surface à épiler que l'on presse sur la cire, puis que l'on arrache en tirant parallè­lement à la peau dans le sens inverse du poil. On a constaté que les plus petits poils s'arrachent également, ce qui n'était pas le cas dans les dispositifs de l'art antérieur. En particulier, des essais comparables ont été réalisés avec l'appareillage d'épilation conforme au brevet français 2 520 601. On a constaté une épilation beaucoup moins efficace avec cet appareillage connu, certains poils étant cassés et les plus petits poils n'étant pas arrachés.It has been found that the temperature of the wax under these conditions is 72 ° C. after 20 to 30 min, and that it remains very precisely at this temperature if the cartridges 4 are left in the heater 1. Despite this relatively high wax temperature, it has been found that the cartridges 4 can be used with the bare hand without any pain or burning, and that they make it possible to apply an extremely fine layer of wax to the skin. The relatively high temperature of the wax allows the skin pores to expand and better pull the bulb out of the hair without the risk of it breaking. After applying the wax in a single thin layer, put a strip of paper cut to the size of the surface to be depilated, which is pressed on the wax, then torn off by pulling parallel to the skin in the opposite direction. hair. We found that the smallest hairs are also torn off, which was not the case in the devices of the prior art. In particular, comparable tests have been carried out with the hair removal device in accordance with French patent 2,520,601. Hair removal has been found to be much less effective with this known device, certain hairs being broken and the smallest hairs not being torn off.

L'appareil 1 de chauffage selon l'invention peut être laissé branché et allumé toute une journée, la température de l'huile et de la cire étant contrôlée grâce au ther­mostat 35. L'appareil 1 de chauffage peut être nettoyé facilement. L'appareillage selon l'invention est destiné à avoir une durée de vie d'au moins 10 ans.The heater 1 according to the invention can be left plugged in and turned on for a whole day, the temperature of the oil and of the wax being controlled by thermostat 35. The heater 1 can be easily cleaned. The apparatus according to the invention is intended to have a lifespan of at least 10 years.

La capacité totale de l'appareillage selon l'invention permet de pratiquer 15 à 20 épilations de demi-jambes sans avoir à remplir à nouveau les réservoirs 2. Néan­moins, ces réservoirs 2 peuvent aisément être rechargés en cire grâce à leurs larges orifices de remplissage 40.The total capacity of the apparatus according to the invention makes it possible to practice 15 to 20 depilations of half-legs without having to refill the reservoirs 2. Nevertheless, these reservoirs 2 can easily be refilled with wax thanks to their large filling orifices. 40.

Le chauffage par convection par l'intermédiaire d'une part d'un réservoir d'huile 24 et d'autre part de l'air chaud contenu dans la cuve 6 permet donc en pratique de chauffer rapidement la cire à une température relativement élevée à laquelle elle peut être utilisée en étant parfaitement fluide et efficace, sans provoquer de brûlure à la praticienne ou à l'utilisatrice.Heating by convection via, on the one hand, an oil tank 24 and, on the other hand, hot air contained in the tank 6 therefore makes it possible in practice to quickly heat the wax to a relatively high temperature at which it can be used while being perfectly fluid and effective, without causing burns to the practitioner or the user.

Claims (20)

1. Appareillage d'épilation à la cire comprenant un appareil (1) de chauffage permet­tant de placer à sa température d'application sur la peau, la cire contenue dans le réservoir (2) d'au moins une cartouche de cire (4), l'appareil (1) de chauffage comprenant une cuve (6) de réception dudit réservoir (2) en vue de son chauffage, et des moyens (7) de chauffage des parois (8) de la cuve (6), caractérisé en ce que les dimensions respectives de la cuve (6) et de chaque réservoir (2) de cire sont telles que chaque réservoir (2) de cire inséré dans la cuve (6) en vue de son chauffage est à distance des parois périphériques (8) au moins latérales (8a) de la cuve (6) avec lesquelles il n'entre pas en contact, le chauffage du réservoir (2) étant effectué par l'intermédiaire de l'air chauffé contenu dans la cuve (6), essentiellement par convection. 1. Waxing apparatus comprising a heater (1) for placing at its application temperature on the skin, the wax contained in the reservoir (2) of at least one wax cartridge (4) , the heating appliance (1) comprising a tank (6) for receiving said tank (2) for its heating, and means (7) for heating the walls (8) of the tank (6), characterized in that the respective dimensions of the tank (6) and of each wax tank (2) are such that each wax tank (2) inserted into the tank (6) for heating is at a distance from the peripheral walls (8 ) at least lateral (8a) of the tank (6) with which it does not come into contact, the heating of the tank (2) being effected by means of the heated air contained in the tank (6), essentially by convection. 2. Appareillage d'épilation à la cire selon la revendication 1 comprenant un appareil (1) de chauffage permettant de placer à sa température d'application sur la peau, la cire contenue dans le réservoir (2) d'au moins une cartouche de cire (4), l'appareil (1) de chauffage comprenant une cuve (6) de réception dudit réservoir (2) en vue de son chauffage, et des moyens (7) de chauffage des parois (8) de la cuve (6), caractérisé en ce que les parois périphériques (8) de la cuve (6) sont des parois doubles (8) renfermant un fluide caloporteur et en ce que les moyens (7) de chauffage sont placés à l'extérieur de ces parois doubles périphériques (8). 2. A waxing apparatus according to claim 1 comprising a heating device (1) making it possible to place at its application temperature on the skin, the wax contained in the reservoir (2) of at least one cartridge of wax (4), the heating apparatus (1) comprising a tank (6) for receiving said tank (2) for its heating, and means (7) for heating the walls (8) of the tank (6 ), characterized in that the peripheral walls (8) of the tank (6) are double walls (8) containing a heat transfer fluid and in that the heating means (7) are placed outside these double walls peripherals (8). 3. Appareillage selon l'une quelconque des revendications 1 et 2 caractérisé en ce que la forme de chaque réservoir (2) est différente de celle de la cuve (6). 3. Apparatus according to any one of claims 1 and 2 characterized in that the shape of each tank (2) is different from that of the tank (6). 4. Appareillage selon l'une quelconque des revendications 1 à 3 caractérisé en ce que chaque réservoir (2) est cylindrique de révolution. 4. Apparatus according to any one of claims 1 to 3 characterized in that each tank (2) is cylindrical in revolution. 5. Appareillage selon l'une quelconque des revendications 1 à 4 caractérisé en ce que la cuve (6) est parallélépipédique. 5. Apparatus according to any one of claims 1 to 4 characterized in that the tank (6) is parallelepiped. 6. Appareillage selon l'une quelconque des revendications 1 à 4 caractérisé en ce que la cire contenue dans chaque réservoir (2) et appliquée sur la peau est une cire à base de résine naturelle et d'azulène. 6. Apparatus according to any one of claims 1 to 4 characterized in that the wax contained in each reservoir (2) and applied to the skin is a wax based on natural resin and azulene. 7. Appareillage selon l'une quelconque des revendications 1 à 6 comprenant un appareil (1) de chauffage simultané d'une pluralité de cartouches (4) de cire, carac­térisé en ce qu'il comporte une cuve (6) de chauffage commune à toutes les cartou­ches (4), constituée de parois doubles périphériques (8) et délimitant un espace (10) interne d'air chaud à l'intérieur de la cuve (6) dans lequel les réservoirs (2) des cartouches (4) peuvent être insérés en vue de leur chauffage. 7. Apparatus according to any one of claims 1 to 6 comprising an apparatus (1) for simultaneous heating of a plurality of cartridges (4) of wax, characterized in that it comprises a tank (6) for common heating all cartridges (4), consisting of double peripheral walls (8) and delimiting an internal space (10) of hot air inside the tank (6) in which the reservoirs (2) of the cartridges (4) can be inserted for heating. 8. Appareillage selon la revendication 7 caractérisé en ce que les parois doubles périphériques (8) de la cuve (6) délimitent un compartiment (1O) d'air chaud parallé­lépipédique unique et commun pour tous les réservoirs (2) des cartouches (4) qui ne sont pas en contact direct avec les parois doubles périphériques (8) de la cuve (6). 8. Apparatus according to claim 7 characterized in that the double peripheral walls (8) of the tank (6) delimit a compartment (1O) of single and parallelepipedal hot air common for all the tanks (2) of the cartridges (4) which are not in direct contact with the double peripheral walls (8) of the tank (6). 9. Appareillage selon l'une quelconque des revendications 1 à 8 caractérisé en ce que l'appareil (1) de chauffage comportant un carter (11) dont une paroi (12) est pourvue d'orifices (13) de passage et de maintien des cartouches (4), les parois périphériques (8) de la cuve (6) définissent une ouverture (15) unique accolée contre et sous la paroi (12) du carter (11) pourvue d'orifices (13) de passage et de maintien des cartouches (4). 9. Apparatus according to any one of claims 1 to 8 characterized in that the heater (1) comprising a housing (11), one wall (12) is provided with orifices (13) for passage and holding cartridges (4), the peripheral walls (8) of the tank (6) define a single opening (15) placed against and under the wall (12) of the casing (11) provided with orifices (13) for passage and maintenance of the cartridges (4). 10. Appareillage selon l'une quelconque des revendications 2 à 9 caractérisé en ce que les parois doubles périphériques (8) de la cuve (6) sont constituées d'une enceinte interne métallique (22) délimitant l'espace (10) interne d'air chaud, et d'une enceinte externe métallique (23) s'étendant autour de l'enceinte interne (22) pour former, entre ces deux enceintes (22, 23), un réservoir (24) fermé unique d'épais­seur constante renfermant un fluide de caloporteur. 10. Apparatus according to any one of claims 2 to 9 characterized in that the double peripheral walls (8) of the tank (6) consist of an internal metallic enclosure (22) delimiting the space (10) internal d hot air, and a metallic external enclosure (23) extending around the internal enclosure (22) to form, between these two enclosures (22, 23), a single closed reservoir (24) of constant thickness containing a heat transfer fluid. 11. Appareillage selon la revendication 10 caractérisé en ce que les moyens (7) de chauffage des parois périphériques (8) sont constitués d'une plaque chauffante (7) montée au contact et à l'extérieur d'une paroi (27) de l'enceinte externe (23) de la cuve (6), le fluide caloporteur étant chauffé par convection et circulation naturelle à l'intérieur des parois doubles périphériques (8). 11. Apparatus according to claim 10 characterized in that the means (7) for heating the peripheral walls (8) consist of a heating plate (7) mounted in contact with and outside a wall (27) of the outer enclosure (23) of the tank (6), the heat transfer fluid being heated by convection and natural circulation inside the double peripheral walls (8). 12. Appareillage selon la revendication 11 caractérisé en ce que la plaque chauffante (7) est montée d'un côté de la cuve (6) contre une de ses parois latérales extérieures (27) et en ce qu'il comporte au moins une sonde thermique (28, 29) montée contre la paroi latérale extérieure (30) opposée de la cuve (6). 12. Apparatus according to claim 11 characterized in that the heating plate (7) is mounted on one side of the tank (6) against one of its outer side walls (27) and in that it comprises at least one probe thermal (28, 29) mounted against the opposite external side wall (30) of the tank (6). 13. Appareillage selon l'une quelconque des revendications 1 à 12 caractérisé en ce qu'il comporte une plaque isolante (38) -notamment en bakélite (marque déposée)- s'étendant sur le fond (8b) de la cuve (6) afin d'éviter que le fond (39) des réservoirs (2) des cartouches (4) vienne directement en contact du fond (8b) de la cuve (6). 13. Apparatus according to any one of claims 1 to 12 characterized in that it comprises an insulating plate (38) - in particular bakelite (registered trademark) - extending over the bottom (8b) of the tank (6) in order to prevent the bottom (39) of the tanks (2) of the cartridges (4) coming directly into contact with the bottom (8b) of the tank (6). 14. Appareillage selon l'une quelconque des revendications 1 à 13 caractérisé en ce que les parois (9) des réservoirs (2) des cartouches (4) sont en matière plastique molle isolante. 14. Apparatus according to any one of claims 1 to 13 characterized in that the walls (9) of the tanks (2) of the cartridges (4) are made of soft insulating plastic. 15. Appareillage selon l'une quelconque des revendications 1 à 14 caractérisé en ce que les réservoirs (2) des cartouches (4) ont tous les mêmes dimensions et en ce que les orifices (23) de passage ménagés sur le carter (11) de l'appareil (1) de chauffage ont tous les mêmes dimensions. 15. Apparatus according to any one of claims 1 to 14 characterized in that the tanks (2) of the cartridges (4) all have the same dimensions and in that the orifices (23) passage formed on the housing (11) of the heater (1) all have the same dimensions. 16. Appareillage selon l'une quelconque des revendications 1 à 15 caractérisé en ce que le réservoir (2) de chaque cartouche (4) est associé de façon amovible à un dispositif applicateur (3) correspondant et a un orifice de remplissage (40) commu­niquant avec ce dispositif applicateur (3) qui le prolonge, et en ce que cet orifice de remplissage (40) a un diamètre supérieur à 15 mm, notamment de l'ordre de 20 mm. 16. Apparatus according to any one of claims 1 to 15 characterized in that the reservoir (2) of each cartridge (4) is removably associated with a corresponding applicator device (3) and has a filling orifice (40) communicating with this applicator device (3) which extends it, and in that this filling orifice (40) has a diameter greater than 15 mm, in particular of the order of 20 mm. 17. Appareillage selon l'une quelconque des revendications 2 à 16 caractérisé en ce qu'il comporte un thermostat (35) réglable de régulation de la température du fluide caloporteur contenu dans le réservoir (24), et qui est connecté à une sonde thermique (28). 17. Apparatus according to any one of claims 2 to 16 characterized in that it comprises an adjustable thermostat (35) for regulating the temperature of the heat transfer fluid contained in the tank (24), and which is connected to a thermal probe (28). 18. Appareillage selon l'une quelconque des revendications 1 à 17 caractérisé en ce que l'appareil (1) de chauffage comporte un couvercle (14) articulé au carter (11) pour recouvrir les dispositifs applicateurs à rouleau (3) des cartouches (4) lors du chauffage. 18. Apparatus according to any one of claims 1 to 17 characterized in that the heater (1) comprises a cover (14) hinged to the housing (11) to cover the roller applicator devices (3) of the cartridges ( 4) during heating. 19. Appareillage selon la revendication 18 caractérisé en ce que le couvercle (14) en position ouverte forme réceptacle de stockage des bandes de papier utiles à l'épilation. 19. Apparatus according to claim 18 characterized in that the cover (14) in the open position forms a receptacle for storing strips of paper useful for hair removal. 20. Appareillage selon l'une quelconque des revendications 1 à 19 caractérisé en ce que la paroi inférieure (45) du carter (11) de l'appareil (1) de chauffage est perforée. 20. Apparatus according to any one of claims 1 to 19 characterized in that the bottom wall (45) of the housing (11) of the heater (1) is perforated.
EP90400600A 1989-03-03 1990-03-05 Wax hair remover apparatus using convection heating Withdrawn EP0385881A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902823A FR2643797A1 (en) 1989-03-03 1989-03-03 CONVECTION HEATED WAX HEAVY CLEANING APPARATUS
FR8902823 1989-03-03

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EP0385881A1 true EP0385881A1 (en) 1990-09-05

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EP (1) EP0385881A1 (en)
FR (1) FR2643797A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499318A1 (en) * 1991-02-15 1992-08-19 Koninklijke Philips Electronics N.V. Depilation apparatus
EP0779043A1 (en) * 1995-12-14 1997-06-18 Magic Dreams Cosmetica Infantil, S.L. Depilatory wax heating apparatus
EP0783849A1 (en) * 1995-12-13 1997-07-16 Magic Dreams Cosmetica Infantil, S.L. Cover for cases with an application roller
ES2127064A1 (en) * 1995-07-25 1999-04-01 Hernandez Enrique Cuervo Improvements to devices for heating depilatory wax
EP1880697A1 (en) * 2005-04-28 2008-01-23 Vincent Raya (Dong Guan) Electronics Co., Ltd. A skin care method using wax and the apparatus thereof
US7402668B2 (en) 2001-07-20 2008-07-22 Dow Wolff Cellulosics Gmbh Process of preparing alkylhydroxyalkylcellulose

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2138928B1 (en) * 1998-03-02 2000-08-16 Phytolab S L MODULAR BASE FOR WAX APPLICATORS.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1293119A (en) * 1961-03-30 1962-05-11 Device for heating, by electric resistance, depilatory wax
GB1225183A (en) * 1967-02-16 1971-03-17
FR2105876A5 (en) * 1970-09-18 1972-04-28 Bristol Myers Co
FR2502917A1 (en) * 1981-03-31 1982-10-08 Walker Jacques Container for melting wax - has heating element in sheath surrounding basin and under it but not touching
GB2113994A (en) * 1982-01-29 1983-08-17 Inverness Int Hot wax hair remover apparatus
FR2593043A1 (en) * 1986-01-22 1987-07-24 Seb Sa WAXING DEVICE WITH WAX.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1293119A (en) * 1961-03-30 1962-05-11 Device for heating, by electric resistance, depilatory wax
GB1225183A (en) * 1967-02-16 1971-03-17
FR2105876A5 (en) * 1970-09-18 1972-04-28 Bristol Myers Co
FR2502917A1 (en) * 1981-03-31 1982-10-08 Walker Jacques Container for melting wax - has heating element in sheath surrounding basin and under it but not touching
GB2113994A (en) * 1982-01-29 1983-08-17 Inverness Int Hot wax hair remover apparatus
FR2593043A1 (en) * 1986-01-22 1987-07-24 Seb Sa WAXING DEVICE WITH WAX.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499318A1 (en) * 1991-02-15 1992-08-19 Koninklijke Philips Electronics N.V. Depilation apparatus
ES2127064A1 (en) * 1995-07-25 1999-04-01 Hernandez Enrique Cuervo Improvements to devices for heating depilatory wax
EP0783849A1 (en) * 1995-12-13 1997-07-16 Magic Dreams Cosmetica Infantil, S.L. Cover for cases with an application roller
EP0779043A1 (en) * 1995-12-14 1997-06-18 Magic Dreams Cosmetica Infantil, S.L. Depilatory wax heating apparatus
US7402668B2 (en) 2001-07-20 2008-07-22 Dow Wolff Cellulosics Gmbh Process of preparing alkylhydroxyalkylcellulose
EP1880697A1 (en) * 2005-04-28 2008-01-23 Vincent Raya (Dong Guan) Electronics Co., Ltd. A skin care method using wax and the apparatus thereof
EP1880697A4 (en) * 2005-04-28 2011-08-10 Vincent Raya Dong Guan Electronics Co Ltd A skin care method using wax and the apparatus thereof

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