WO2008132345A2 - Hair dressing device - Google Patents
Hair dressing device Download PDFInfo
- Publication number
- WO2008132345A2 WO2008132345A2 PCT/FR2008/000338 FR2008000338W WO2008132345A2 WO 2008132345 A2 WO2008132345 A2 WO 2008132345A2 FR 2008000338 W FR2008000338 W FR 2008000338W WO 2008132345 A2 WO2008132345 A2 WO 2008132345A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- jaws
- hair
- rollers
- roller
- teeth
- Prior art date
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Classifications
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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
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/06—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws
- A45D1/08—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws the jaws remaining parallel to each other during use, e.g. the jaws sliding parallel to each other
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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
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/38—Surface-wave devices
- A45D2/40—Surface-wave devices as hair-pressing tongs
Definitions
- the present invention relates to a hair styling device or hair shaping, more particularly to the type to curl or straighten the hair comprising a housing connected to at least one rotary heating body to perform the shaping of the hair by heat.
- Most hair shaping apparatus such as hair straighteners, curling irons, embossing, comprise a handle supporting two mechanical elements of which at least one is heated, the other being intended to bring the hair in contact with the first, in particular from an open position allowing the insertion of the hair to a closed position for their contact with the heating part.
- the passage from the open position to the closing position is done manually by pressing a lever for opening a tongue of pressure of the hair or by pressing two articulated arms of the apparatus towards each other to bring the heating part in contact with the hair.
- the heating body of the apparatus can be fixedly mounted relative to the handle or mobile.
- WO 2005/082198 is known which is a clamp comprising two jaws pivoting about an end articulation.
- Each jaw comprises a heating roller, smooth or toothed, mounted free to rotate about its longitudinal axis which corresponds to that of the jaw.
- the user inserts a lock of hair between the two rollers, then she closes the clamp and down along the wick to the tip thereof.
- the disadvantage of this device is that the hair treatment time is variable, it is directly related to the speed of the rollers, which depends on the speed of movement of the device along the wick.
- the treatment time was too short and, therefore, the hair was not properly shaped, while moving too slowly caused overheating and even burning of the hair.
- WO 02/058503 describes an apparatus for smoothing or curling hair comprising a handle provided with two pivoting jaws and each supporting a treatment roller, one of the rollers being driven in rotation by an electric motor of the handle, the other being rotatably mounted, the latter enclosing a heating element.
- the jaws are opened to insert a lock of hair between the treatment rollers, then the apparatus is closed and the motor is turned on to drive the rollers.
- the problem with this device is that the user can not guarantee neither the contact time, nor the contact pressure between the roller and the hair necessary to obtain the shaping of the hair.
- the desired values to achieve a treatment can be obtained after several successive tests on the hair, which already creates undesirable effects in the hair, certainly not uniform or even harmful.
- the treatment of a wick is not uniform in its mass, the parallelism of the rollers strongly depending on the thickness of the wick with a direct consequence on the variability of the wick. the pressure applied as a function of its spreading between the rollers.
- the object of the present invention is to provide a hair styling device capable of achieving hair shaping that is good quality, durable, uniform appearance throughout the hair, while being easy and convenient to use.
- Another object of the invention is to provide a hair styling device capable of ensuring a good heat transfer between the heating part of the appliance and the hair, while ensuring the protection thereof and having increased reliability in operation. .
- Another object of the invention is to provide a hair styling device capable of guaranteeing a good contact pressure between the shaping means and the hair during the treatment.
- Another object of the invention is a hairdressing device of simplified structure, compact and can be industrialized for a low cost.
- Another object of the invention is to develop a new method for treating human hair making it possible to obtain an improvement in the visual properties of treated hair with rapid and easy to implement steps which are constant and persistent at least before washing the hair.
- a hairdressing apparatus having two jaws, the hair being able to be inserted between the two jaws, one of their ends forming a handle and each supporting at the other end a treatment roller arranged with the possibility of rotation around it.
- the apparatus comprises means for actuating at least one roller having an outer diameter of between 22mm and 38mm for him to print a speed of rotation between 12 rpm and 30 rpm, the temperature of the roller at the level of the area of contact with the hair being between 140 ° C. and 230 ° C., preferably 200 ° C.
- This apparatus is of the type comprising two jaws, each jaw comprising a treatment roller of which at least one is heating or, alternatively, the two treatment rollers are heated, the rollers being rotated about the longitudinal axis of each jaw.
- the hair can be inserted between the two jaws, either by mounting the two pivoting jaws around a hinge axis perpendicular to the longitudinal axis of the device, or parallel and mobile in translation, where in each case a spring is provided to push the jaws in a position spaced apart from each other, the jaws being approximated by the user.
- the two parallel mounted fixed jaws in a common housing, and where one of the rollers is mounted floating, for example by means of suspension springs with respect to its jaw, the apparatus having a leading portion with a chamfer for introducing the hair between the two rollers.
- the hair is introduced between the rollers and, when the jaws are brought together, the hair is shaped by calendering, passing it between rotating processing rolls.
- the apparatus comprises means for actuating at least one roll of predetermined dimensions to print a predetermined passage rate on the hair, for a predetermined temperature of heating the roller or rollers in contact with the hair.
- the heating element of the treatment roller may be of the resistive electric type, with PTC, or with the gas being able to develop a temperature of between 140 ° C. and 230 ° C.
- the material of the treatment roller is metallic, for example aluminum, with a wall thickness of at least 1/6 of its diameter giving it good thermal inertia.
- the width of the rolls has been chosen to be greater than that of a lock of hair to be treated.
- Such a temperature of the rollers ensures a good and durable shaping of the hair during their passage at a predetermined speed between two mobile rollers.
- the apparatus of the invention performs a continuous shaping of the hair by passing them between two entrained calenders so as to provide a predetermined speed of passage on the hair, which results in a rapid shaping, uniform and persistent of all the treated hair which is also protected against overheating.
- said actuating means comprise a brake cooperating with a roller mounted free to rotate.
- the rollers are rotatably mounted in their bearings within each jaw and are rotated during the manual movement of the device along the wick to be treated.
- the brake cooperating with one of the rollers then makes it possible to limit the speed of passage of the hair between the rollers.
- a brake may be, for example an inertia brake based on the principle of winding a spring on an axis of rotation so that the braking force is proportional to the speed of movement of the device the along the wick.
- an adjustment of the braking force to adapt it to different types of shaping of the hair.
- Other brakes proportional to the movement can be envisaged, such as for example: a grease brake, a brake shoes rubbing against a cylindrical wall.
- an electric or electromagnetic brake One could also consider the use of an electric or electromagnetic brake.
- said actuating means comprise an electric motor for driving one of the rollers.
- the apparatus according to this embodiment comprises a motorized roller, the other being able to be rotatably mounted in its bearings within the jaw.
- the advantage of this solution is that the electric motor makes it possible to guarantee a constant speed of passage of the hair between the calendering rollers, and without any displacement force, the hair being driven by the rollers.
- rollers are smooth.
- This device then performs a smooth, continuous, uniform and fast hair.
- the jaws are movably mounted between an open position and a closed position, one of the jaws comprising a toothed toothed roller engaging with the teeth of the roller of the other jaw.
- the rolls have an outer diameter of between 22 mm and 38 mm, they have between 7 and 25 teeth and are driven at a speed of between 12 rpm and 30 rpm.
- the jaws are movably mounted between an open position and a closed position and the apparatus comprises means for detecting the closed position of the jaws.
- These detection means then make it possible to verify that the rollers are in contact with the hair in order to be able to start the treatment. This makes it possible to start the treatment if the conditions of a good operation are fulfilled (for example this makes it possible to check that there is no wick too thick between the rollers or that there is no bar or other foreign object inserted between the rolls).
- These detection means may advantageously be operably connected to control means which would be brought for example to automatically start the drive motor of the roller.
- said detection means comprise an electrical switch having a tripping stroke of between 0 and 4 mm.
- the jaws are movably mounted between an open position and a closed position and the apparatus comprises means for locking the jaws.
- said locking means comprise an electromagnet.
- electromagnet can be powered during the treatment of the hair, the pressing of a button can quickly disable it and the jaws open under the push of a spring.
- said rollers are removably mounted relative to the handle.
- rollers smooth or striated with the same apparatus, electrical and / or mechanical connectors then being provided between the rollers and the housing of the device.
- each roller comprises a heating element connected to a means for controlling its temperature.
- each roller with a heating element having its own means for adjusting its temperature makes it possible, on the one hand, to have the appliance be warmed more rapidly and, on the other hand, to be able to vary the temperatures of each roll and subsequently obtain different effects in shaping the hair.
- the invention also relates to a method for treating human hair comprising a step of introducing hair between two jaws mounted movable relative to each other, each supporting a treatment roller mounted with the possibility of rotation around its longitudinal axis, since it consists of:
- Such a method therefore makes it possible to apply a constant speed to the treated hair, a speed which is adapted to the dimensions of the roll and to the heating temperature thereof, thereby obtaining a uniform and continuous hair treatment.
- the method of the invention comprises an additional step of detecting the closed position of the jaws before ordering driving the rollers.
- FIG. 1 is a side view of an apparatus according to a preferred embodiment of the invention, the apparatus being in the rest position;
- FIG. 2a is a longitudinal sectional view of the apparatus of FIG.
- Figure 3a is a longitudinal sectional view of an apparatus according to another embodiment of the invention illustrated in the working position
- Figure 3b is a cross-sectional view taken with the plane B-B of Figure 3a.
- FIGS. 4a to 4f illustrate some examples of toothed rollers corresponding to alternative embodiments of the apparatus of the invention.
- the apparatus of Figure 1 is a curling iron according to a preferred embodiment of the invention, the apparatus being illustrated in the open position or rest.
- the apparatus comprises two jaws 2, 3 pivotally mounted about a hinge 5, forming a handle 1 of the clamp type and provided at the rear with a tip 6 adapted to receive a rotary connector for a power supply cable.
- main electric (not shown in the figures).
- Each jaw 2, 3 comprises a hollow housing 7, 8 adapted to receive a roll 10,11 at its front end 4.
- the housings 7,8 are advantageously made of a plastic material by an injection technique.
- a button 12 is provided on one side of the housing to select the direction of rotation in the roller drive, as will be explained later.
- the apparatus can receive a lock of hair to be treated introduced between the rollers 10, 11, the apparatus then being closed by exerting a pressure on the jaws 2, 3 which are held in closed position by locking means 14 actuated by a button 15 locking / unlocking.
- Figure 2a illustrates a longitudinal sectional view of the apparatus of Figure 1, shown in closed or working position.
- the roller 10 is rotatably mounted about the longitudinal axis 20 of the jaw 2 while being held in bearings 21 within the housing 7.
- the roller 10 encloses a heating element 18 which may be an electrical heating element of the resistive type , CTP, infrared, etc. powered by a rotary connector 19 receiving power from the main cable of the apparatus.
- the heating element 18 is placed in the center of the roll 10 while being in thermal contact with the body of the roll in order to fully transfer its calories to it.
- the roll is made of a metal material which is a good heat conductor of the aluminum type or its alloys, copper or alloys, or steel.
- the temperature of the roll 10 in operation is between 140 ° C. and 230 ° C. and is preferably set at 200 ° C.
- the roller 11 is rotatably mounted about the longitudinal axis 23 of the jaw 3 being supported in bearings 24 within the housing 8 thereof, being itself rotated by a geared motor 25 receiving the supply of the main cable of the device.
- the geared motor 25 develops a driving torque of the roller 11 between 2000 g * cm and 12000 g * cm, preferably 5500 g * cm.
- the roller 11 is made of a metal material which is a good heat conductor of the aluminum type or its alloys, copper or alloys, or steel. In a variant, the roll 11 could contain an electric heating element of the same type as that of the roll 10.
- the rollers 10, 1 1 have predetermined dimensions chosen in relation to the speed of the output shaft 26 of the geared motor 25 so as to print to the roller 11 a speed of rotation, which is, in this for example, the speed of the output shaft 26 of the geared motor 25 and is between 12 and 30 rpm.
- This motor roll directly drives the free roll 11 in rotation, the two rollers having an outside diameter between 22mm and 38mm.
- the rollers 10, 11 may have a smooth surface more suitable for smoothing the hair.
- the rollers have an outer diameter equal to 26.5 mm and a wall thickness of between 3 mm and 7 mm, preferably equal to 5 mm.
- the outer surface of the rollers may be covered with an elastomeric material allowing it to better adapt to the thickness of the lock of hair to be treated.
- the length of a roll is between 60mm and 70mm.
- the roller 10 mounted free to rotate has the same shape and dimensions as the roller 11 and rotates at the same speed as the latter, but in a contrary direction.
- rollers illustrated in the figures are crenellated, their periphery being provided with mutually engaging teeth 27 and 28 respectively (FIG. 2b) and are intended to produce waffles in the hair.
- Each roll 10, 11 comprises between 7 and 25 teeth, the roll 10 having the same number of teeth as the roll 11.
- Figure 4a illustrates a so-called large diameter roller being provided with 8 teeth making an angle at the top of 30 °.
- the roller of Figure 4a has an outer diameter or head of teeth of 37.3mm and a foot diameter of 19.6mm.
- the roller of Figure 4b is also a roll of large diameter, the head diameter is equal to 37.3 mm, but it has 7 teeth.
- Detail B of Figure 4b shows an enlarged view of the top of a tooth and detail C shows an enlarged view of the tooth base of the roller of Figure 4b.
- FIG. 4c illustrates another type of roller, called medium diameter, having a head diameter of 27.3 mm, a root diameter of 19.5 mm and having 10 teeth, the angle at the top of a tooth being 50 ° .
- Figure 4d illustrates a so-called small diameter roller, having a head diameter of 25.9mm, a root diameter of 21.1mm and having 25 teeth, the apex angle of the teeth being 23 °.
- Figure 4e illustrates a large diameter flat-toothed roll.
- the roller has 8 teeth, has a head diameter of 37.3mm, a root diameter of 18.9mm, the angle at the top of the teeth is 20 °.
- the teeth are flattened, for example a distance of 2mm at the top so as to print a flat streak pattern in the wavelets from the embossing.
- the top and the base of the teeth have 0.5mm connecting radii, as visible in details B and C of Figure 4e.
- Figure 4f illustrates a large diameter roller with rounded teeth.
- the roller has 8 teeth, has a head diameter of 33mm, a foot diameter of 23.4mm.
- the teeth are rounded, the top and base of the teeth have 2.8mm connecting radii, as seen in details B and C of Figure 4f.
- Such rounded teeth are able to print a pattern with ripples uniform and well marked during embossing.
- the rollers 10, 11 are removably mounted in their supports within the jaws 2, 3.
- the rollers illustrated in Figures 4a to 4f all have the same internal diameter of fixing around a heating element, about 12mm.
- the shape obtained in the embossing wavelets depends on the profile of the teeth and their dimensions.
- the roll of Figures 4a, 4b prints ripples spaced and deep, while that of Figure 4d, mark him, small undulations in the hair.
- the apparatus is provided with detection means 30 (FIG. 1) for detecting the closed position of the jaws 2, 3.
- the detection means comprise a switch 31 mounted in the housing 8 of the jaw 3 actuated by a protrusion 32 vis-à-vis belonging to the housing 7 of the jaw 2.
- the protrusion 32 is supported on the upper part of the switch 31 and closes the contacts of the latter, which has the effect of automatically switching on the geared motor 25.
- the switch 31 is set to take into account the thickness of a lock of hair introduced between the rollers 10,11. Thus, this trigger stroke is between 0 and 4mm.
- the switch 31 is arranged in the vicinity of one end of the treatment rollers, in order to detect the good condition of closure of the jaws at this level.
- the switch 31 is situated at the front end of the jaw 3 or the roll 11.
- the rollers 10,11 are removably mounted and, therefore, the switch 31 is advantageously arranged at the rear end of the roller 11, towards the center of the jaw 3, so that the wiring is kept only on the fixed part of the jaw 3, the roller 11 coming to connect, at its rear end, in the power supply plugs provided for this purpose in the same non-removable part of the jaw 3.
- each jaw housing 7, 8 may advantageously comprise indentations (not shown in the drawings) preferably made of a soft-touch material allowing the user's fingers to bear in order to bring the ends into contact with one another. jaws against each other and thus facilitate the closure of the jaws.
- the locking means 14 hold the jaws 2 and 3 in position closed when the user activates a button 15.
- pressing the button 15 triggers the supply of an electromagnet 16 for the duration of treatment. Pressing the button 15 again deactivates the supply of the electromagnet 16 and the jaws automatically open by being pushed by a compression spring arranged around the hinge 5.
- the apparatus has a general shape of a clamp comprising two jaws pivoted about an end joint. Starting from the pivoting articulation in the direction of the free end of the jaws, there are, in order, the locking means 14, then the geared motor 25, the active part comprising the treatment rolls 10 and 11, then finally the detection means 30 of the closed position of the jaws 2, 3 (or, alternatively, the detection means are arranged before the treatment rollers 10,11 starting from the handle).
- This addition of functions in series makes it possible to lengthen the arms so that the rollers are closed even more in parallel (with respect to a scissors-type apparatus), which makes it possible to spread a lock of hair flat and easily. thus improve its treatment.
- the user begins by choosing the direction of rotation of the motor that determines the direction of movement of the device relative to the hair to be treated. It then inserts a lock of hair inside the device, between the rollers 10 and 11 and closes the device by bringing the jaws 2 and 3 closer together.
- the geared motor 25 drives the roller 11 which in turn drives the roller 10 at the right speed allowing the teeth 27 and 28 to print a wave shape in the treated hair.
- the user activates the locking means in the closed position of the jaws by actuating the button 15.
- the other roller when only one of the rolls has a heating element, the other roller is at a lower temperature than the first, because it is heated only by contact and by the interposition of the lock of hair to be treated therewith. As a result, the less heated roller prints very lightly a relief in the hair.
- the warmer roller by orienting, during the treatment, the warmer roller towards the inside of the lock of hair, it is possible to confer more relief on the inner part of the lock and less on the outer part, which has the effect of inflating more the inner part and thus give volume to the hairstyle.
- FIGS. 3a and 3b illustrate another embodiment of the invention in which the components having the same function have kept the same reference numbers as those of the preceding figures.
- the apparatus is shown in the closed or working position and comprises two jaws 2 and 3 pivotally mounted about a hinge 5, each jaw supporting rollers 10, 11.
- each roll 10, 11 is freely mounted. in rotation in bearings 21, respectively 24, of its housing 7, respectively 8.
- Each roller 10, 11 contains an electric heating element 18 receiving the supply via a rotating connector 19.
- the roller 10 rotate freely when the apparatus is manually moved by the user along a wick.
- the roller 10 comprises a brake 35 at the end of its rotation shaft which limits its speed of rotation.
- the brake 35 is an inertia brake comprising a spiral spring 36 whose turns wind on an axis 37, so that the braking force is proportional to the rotational speed of the roller and therefore to the displacement of the device. along the wick.
- the rollers 10, 11 have the same constructive and functional parameters as those of the apparatus previously described.
- the brake 35 is then provided to limit the rotational speed of the rolls at maximum 30 rpm. In order to prevent the user from holding the device motionless in the hair, a continuous movement of the device would be imposed and indicated by an auditory or luminous signal.
- the user inserts a lock of hair inside the apparatus between the rollers 10 and 11 and closes it by bringing the jaws 2 and 3 closer together.
- an automatic closing device for example using an electromagnet, keeps the apparatus closed.
- the brake limits the speed of the rollers 10 and 11 which then rotate at the correct speed, pre-set by calibrating the brake, and allow the teeth 27 and 28 to print a wave shape in the treated hair.
- the user presses an unlocking button and the jaws open automatically by being pushed by a compression spring wound around the joint 5.
- the apparatus may be provided with a protection device in case of overload of the electric drive motor of one of the rollers.
- a protection device in case of overload of the electric drive motor of one of the rollers.
- a device for measuring the intensity of the motor detects the exceeding of a threshold threshold due, for example, to the arrival of the motor. device in abutment against the scalp when it is moved on the wick of the tip towards the hairline.
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Abstract
The invention relates to a hair dressing device that comprises two jaws (2, 3), wherein hair can be inserted between the two jaws, one of the ends thereof defining a handle (1) and each at the other end a treatment drum (10, 11) capable of rotation about the longitudinal axis of the jaw, at least one of said drums including a heating member (18). According to the invention, the apparatus includes a means for actuating at least one drum having an outer diameter between 22 mm and 38 mm in order to impart thereto a rotation speed of between 12 rot/min and 30 rot/min, the temperature of the drum (10, 11) at the contact surface with the hair ranging from 140°C to 230°C, and preferably being 200°C.
Description
APPAREIL DE COIFFURE HAIRSTYLING APPARATUS
La présente invention concerne un appareil de coiffure ou de mise en forme des cheveux, plus particulièrement du type à friser ou à lisser les cheveux comportant un boîtier relié à au moins un corps chauffant rotatif pour effectuer la mise en forme des cheveux par la chaleur.The present invention relates to a hair styling device or hair shaping, more particularly to the type to curl or straighten the hair comprising a housing connected to at least one rotary heating body to perform the shaping of the hair by heat.
La plupart des appareils de mise en forme des cheveux, tels par exemple les lisseurs, les fers à friser, à gaufrer, comportent une poignée supportant deux éléments mécaniques dont au moins l'un est chauffé, l'autre étant prévu pour amener les cheveux en contact avec le premier, notamment en passant d'une position d'ouverture permettant l'insertion des cheveux à une position de fermeture pour leur mise en contact avec la partie chauffante. Le passage de la position d'ouverture à celle de fermeture se fait manuellement en pressant un levier d'ouverture d'une languette de pression des cheveux ou en pressant deux bras articulés de l'appareil l'un vers l'autre pour amener la partie chauffante au contact des cheveux. Le corps chauffant de l'appareil peut être monté fixe par rapport à la poignée ou mobile.Most hair shaping apparatus, such as hair straighteners, curling irons, embossing, comprise a handle supporting two mechanical elements of which at least one is heated, the other being intended to bring the hair in contact with the first, in particular from an open position allowing the insertion of the hair to a closed position for their contact with the heating part. The passage from the open position to the closing position is done manually by pressing a lever for opening a tongue of pressure of the hair or by pressing two articulated arms of the apparatus towards each other to bring the heating part in contact with the hair. The heating body of the apparatus can be fixedly mounted relative to the handle or mobile.
Parmi les appareils comportant des parties de mise en forme chauffantes et mobiles, on connaît celui décrit dans le document WO 2005/082198 qui est une pince comportant deux mâchoires pivotantes autour d'une articulation d'extrémité. Chaque mâchoire comporte un rouleau chauffant, lisse ou denté, monté libre en rotation autour de son axe longitudinal qui correspond à celui de la mâchoire. En fonctionnement, l'utilisatrice insère une mèche de cheveux entre les deux rouleaux, puis elle ferme la pince et descend le long de la mèche jusqu'à la pointe de celle-ci. L'inconvénient de cet appareil est que le temps de traitement des cheveux est variable, il est en relation directe avec la vitesse des rouleaux qui, elle, dépend de la rapidité de déplacement de l'appareil le long de la mèche. Or, il a été constaté qu'avec des déplacements trop rapides de l'appareil le long d'une mèche, le temps de traitement était trop court et, par conséquent, les cheveux n'étaient pas correctement mis en forme,
alors que les déplacement trop lents provoquaient des surchauffes, voire des brûlures des cheveux.Among the devices comprising heated and mobile shaping parts, the one described in document WO 2005/082198 is known which is a clamp comprising two jaws pivoting about an end articulation. Each jaw comprises a heating roller, smooth or toothed, mounted free to rotate about its longitudinal axis which corresponds to that of the jaw. In operation, the user inserts a lock of hair between the two rollers, then she closes the clamp and down along the wick to the tip thereof. The disadvantage of this device is that the hair treatment time is variable, it is directly related to the speed of the rollers, which depends on the speed of movement of the device along the wick. However, it was found that with too rapid movements of the device along a wick, the treatment time was too short and, therefore, the hair was not properly shaped, while moving too slowly caused overheating and even burning of the hair.
Une solution à ce problème a été proposée dans le document WO 02/058503 qui décrit un appareil pour le lissage ou le frisage des cheveux comportant une poignée munie de deux mâchoires pivotantes et supportant chacune un rouleau de traitement, l'un des rouleaux étant entraîné en rotation par un moteur électrique de la poignée, l'autre étant monté libre en rotation, ce dernier renfermant un élément chauffant. Lors de l'utilisation, les mâchoires sont ouvertes pour insérer une mèche de cheveux entre les rouleaux de traitement, puis l'appareil est fermé et le moteur mis en marche pour l'entraînement des rouleaux. Le problème qui se pose avec cet appareil est que l'utilisateur ne sait garantir ni le temps de contact, ni la pression de contact entre le rouleau et les cheveux nécessaires pour obtenir la mise en forme des cheveux. En effet, malgré la présence d'un bouton de réglage de la vitesse du moteur, il est difficile pour l'utilisateur de choisir la vitesse optimale associée au type de rouleau, à sa température, et, de surcroît, à une pression de contact qui peut également varier. Ainsi, les valeurs souhaitées pour réaliser un traitement ne peuvent être obtenues qu'après plusieurs essais successifs sur la chevelure, ce qui crée déjà des effets indésirables dans la chevelure, certainement non uniformes, voire dommageables. De surcroît, de par la forme en ciseaux de l'appareil, le traitement d'une mèche n'est pas uniforme dans sa masse, le parallélisme des rouleaux dépendant fortement de l'épaisseur de la mèche avec une conséquence directe sur la variabilité de la pression appliquée en fonction de son étalement entre les rouleaux.A solution to this problem has been proposed in WO 02/058503 which describes an apparatus for smoothing or curling hair comprising a handle provided with two pivoting jaws and each supporting a treatment roller, one of the rollers being driven in rotation by an electric motor of the handle, the other being rotatably mounted, the latter enclosing a heating element. In use, the jaws are opened to insert a lock of hair between the treatment rollers, then the apparatus is closed and the motor is turned on to drive the rollers. The problem with this device is that the user can not guarantee neither the contact time, nor the contact pressure between the roller and the hair necessary to obtain the shaping of the hair. Indeed, despite the presence of a knob for adjusting the speed of the motor, it is difficult for the user to choose the optimum speed associated with the type of roller, its temperature, and, moreover, a contact pressure which can also vary. Thus, the desired values to achieve a treatment can be obtained after several successive tests on the hair, which already creates undesirable effects in the hair, certainly not uniform or even harmful. Moreover, due to the scissor shape of the apparatus, the treatment of a wick is not uniform in its mass, the parallelism of the rollers strongly depending on the thickness of the wick with a direct consequence on the variability of the wick. the pressure applied as a function of its spreading between the rollers.
Or, la qualité d'une mise en forme des cheveux par la chaleur est définie par les lois de transfert thermique et doit prendre en compte de multiples paramètres tels : le temps de contact, la température de l'échange thermique, la surface par laquelle s'effectue l'échange thermique, la diffusivité des matériaux des éléments en contact thermique, la masse des éléments, la pression de contact.
Le but de la présente invention est de proposer un appareil de coiffure apte à réaliser une mise en forme des cheveux qui soit de bonne qualité, durable, d'aspect uniforme dans toute la chevelure, tout en étant d'une utilisation facile et pratique.However, the quality of hair shaping by heat is defined by the heat transfer laws and must take into account multiple parameters such as: the contact time, the temperature of the heat exchange, the surface by which the thermal exchange is carried out, the diffusivity of the materials of the elements in thermal contact, the mass of the elements, the contact pressure. The object of the present invention is to provide a hair styling device capable of achieving hair shaping that is good quality, durable, uniform appearance throughout the hair, while being easy and convenient to use.
Un autre but de l'invention est de proposer un appareil de coiffure apte à garantir un bon transfert thermique entre la partie chauffante de l'appareil et les cheveux, tout en assurant la protection de ceux-ci et en présentant une fiabilité accrue en fonctionnement.Another object of the invention is to provide a hair styling device capable of ensuring a good heat transfer between the heating part of the appliance and the hair, while ensuring the protection thereof and having increased reliability in operation. .
Un autre but de l'invention est de proposer un appareil de coiffure apte à garantir une bonne pression de contact entre les moyens de mise en forme et les cheveux lors du traitement.Another object of the invention is to provide a hair styling device capable of guaranteeing a good contact pressure between the shaping means and the hair during the treatment.
Un autre but de l'invention est un appareil de coiffure de structure simplifiée, compact et pouvant être industrialisé pour un faible coût.Another object of the invention is a hairdressing device of simplified structure, compact and can be industrialized for a low cost.
Un autre but de l'invention est de développer un nouveau procédé de traitement des cheveux humains permettant d'obtenir une amélioration des propriétés visuelles des cheveux traités avec des étapes rapides et faciles à mettre en œuvre et qui sont constantes et persistantes au moins avant le lavage des cheveux.Another object of the invention is to develop a new method for treating human hair making it possible to obtain an improvement in the visual properties of treated hair with rapid and easy to implement steps which are constant and persistent at least before washing the hair.
Ces buts sont atteints avec un appareil de coiffure comportant deux mâchoires, les cheveux pouvant être insérés entre les deux mâchoires, l'une de leurs extrémités formant une poignée et supportant chacune à l'autre extrémité un rouleau de traitement agencé avec possibilité de rotation autour de l'axe longitudinal de la mâchoire, au moins l'un des rouleaux comportant un élément chauffant, du fait que l'appareil comporte des moyens d'actionnement d'au moins un rouleau ayant un diamètre extérieur compris entre 22mm et 38mm pour lui imprimer une vitesse de rotation comprise entre 12rot/min et 30rot/min, la température du rouleau au niveau de la surface de contact avec les cheveux étant comprise entre 1400C et 2300C, de préférence 2000C.
Cet appareil est du type comportant deux mâchoires, chaque mâchoire comportant un rouleau de traitement dont au moins l'un est chauffant ou, dans une variante, les deux rouleaux de traitement sont chauffants, les rouleaux étant amenés à tourner autour de l'axe longitudinal de chaque mâchoire. Les cheveux peuvent être insérés entre les deux mâchoires, soit en montant les deux mâchoires pivotantes autour d'une articulation d'axe perpendiculaire à l'axe longitudinal de l'appareil, soit parallèles et mobiles en translation, où, dans chaque cas, un ressort est prévu pour pousser les mâchoires dans une position écartée l'une de l'autre, les mâchoires étant rapprochées par l'utilisatrice. Dans un autre mode de réalisation, on peut envisager les deux mâchoires parallèles montées fixes dans un boîtier commun, et où l'un des rouleaux est monté flottant, par exemple à l'aide de ressorts de suspension par rapport à sa mâchoire, l'appareil présentant une partie d'attaque avec un chanfrein d'introduction des cheveux entre les deux rouleaux. Les cheveux sont introduits entre les rouleaux et, lorsque l'on rapproche les mâchoires, les cheveux sont mis en forme par calandrage, en les faisant passer entre des rouleaux de traitement tournants.These aims are achieved with a hairdressing apparatus having two jaws, the hair being able to be inserted between the two jaws, one of their ends forming a handle and each supporting at the other end a treatment roller arranged with the possibility of rotation around it. of the longitudinal axis of the jaw, at least one of the rollers having a heating element, because the apparatus comprises means for actuating at least one roller having an outer diameter of between 22mm and 38mm for him to print a speed of rotation between 12 rpm and 30 rpm, the temperature of the roller at the level of the area of contact with the hair being between 140 ° C. and 230 ° C., preferably 200 ° C. This apparatus is of the type comprising two jaws, each jaw comprising a treatment roller of which at least one is heating or, alternatively, the two treatment rollers are heated, the rollers being rotated about the longitudinal axis of each jaw. The hair can be inserted between the two jaws, either by mounting the two pivoting jaws around a hinge axis perpendicular to the longitudinal axis of the device, or parallel and mobile in translation, where in each case a spring is provided to push the jaws in a position spaced apart from each other, the jaws being approximated by the user. In another embodiment, it is possible to envisage the two parallel mounted fixed jaws in a common housing, and where one of the rollers is mounted floating, for example by means of suspension springs with respect to its jaw, the apparatus having a leading portion with a chamfer for introducing the hair between the two rollers. The hair is introduced between the rollers and, when the jaws are brought together, the hair is shaped by calendering, passing it between rotating processing rolls.
Selon l'invention, l'appareil comporte des moyens d'actionnement d'au moins un rouleau de dimensions préétablies pour lui imprimer une vitesse de passage prédéterminée sur les cheveux, pour une température prédéterminée de chauffage du ou des rouleaux au contact des cheveux.According to the invention, the apparatus comprises means for actuating at least one roll of predetermined dimensions to print a predetermined passage rate on the hair, for a predetermined temperature of heating the roller or rollers in contact with the hair.
En effet, suite à de nombreux tests effectués en laboratoire, il a été constaté que, pour des rouleaux ayant un diamètre extérieur compris entre 22mm et 38mm, seulement à des valeurs de la vitesse de rotation du rouleau comprises entre 12rot/min et 30rot/min, les cheveux traités thermiquement par calandrage arrivaient à être correctement mis en forme, de manière uniforme et sans être brûlés, ni abîmés par la chaleur. Ainsi, il a été constaté que, en mettant correctement en contact les mâchoires avec les cheveux, à des valeurs de la vitesse de passage sur les cheveux correspondant à une vitesse de rotation du rouleau supérieure à 30 rot/min, la forme de la surface du rouleau n'arrivait pas à
s'imprimer de manière durable sur la mèche traitée, alors qu'à des valeurs inférieures à 12rot/min, les cheveux avaient un aspect terne et avaient tendance à se fragiliser.Indeed, following numerous tests carried out in the laboratory, it has been found that, for rolls having an outside diameter of between 22mm and 38mm, only at values of the rotation speed of the roll between 12rot / min and 30rot / min, thermally heat-treated hair could be properly shaped, evenly and without being burned or damaged by heat. Thus, it has been found that, by properly contacting the jaws with the hair, at values of the speed of passage on the hair corresponding to a rotational speed of the roller greater than 30 rot / min, the shape of the surface roll did not arrive to print sustainably on the treated lock, while at values below 12r / min, the hair had a dull appearance and tended to weaken.
L'élément chauffant du rouleau de traitement peut être du type électrique résistif, à CTP, ou au gaz en étant apte à développer une température comprise entre 1400C et 2300C. Le matériau du rouleau de traitement est métallique, par exemple de l'aluminium, avec une épaisseur de paroi d'au moins 1/6 de son diamètre lui conférant une bonne inertie thermique. La largeur des rouleaux a été choisie de manière à être supérieure à celle d'une mèche de cheveux à traiter.The heating element of the treatment roller may be of the resistive electric type, with PTC, or with the gas being able to develop a temperature of between 140 ° C. and 230 ° C. The material of the treatment roller is metallic, for example aluminum, with a wall thickness of at least 1/6 of its diameter giving it good thermal inertia. The width of the rolls has been chosen to be greater than that of a lock of hair to be treated.
Une telle température des rouleaux assure une bonne et durable mise en forme des cheveux lors de leur passage à une vitesse prédéterminée entre deux rouleaux mobiles.Such a temperature of the rollers ensures a good and durable shaping of the hair during their passage at a predetermined speed between two mobile rollers.
Ainsi, l'appareil de l'invention réalise une mise en forme en continu des cheveux en les faisant passer entre deux calandres entraînées de manière à fournir une vitesse prédéterminée de passage sur les cheveux, ce qui a pour résultat une mise en forme rapide, uniforme et persistante de l'ensemble de la chevelure traitée qui se trouve également protégée contre toute surchauffe.Thus, the apparatus of the invention performs a continuous shaping of the hair by passing them between two entrained calenders so as to provide a predetermined speed of passage on the hair, which results in a rapid shaping, uniform and persistent of all the treated hair which is also protected against overheating.
Dans un premier mode de réalisation de l'invention, lesdits moyens d'actionnement comprennent un frein coopérant avec un rouleau monté libre en rotation.In a first embodiment of the invention, said actuating means comprise a brake cooperating with a roller mounted free to rotate.
Ainsi, les rouleaux sont montés libres en rotation dans leurs paliers au sein de chaque mâchoire et sont entraînés en rotation lors du déplacement manuel de l'appareil le long de la mèche à traiter. Le frein coopérant avec l'un des rouleaux permet alors de limiter la vitesse de passage des cheveux entre les rouleaux. Un tel frein peut être, par exemple un frein à inertie basé sur le principe de l'enroulement d'un ressort sur un axe de rotation ce qui fait que l'effort de freinage est proportionnel à la vitesse de déplacement de l'appareil le
long de la mèche. Dans une variante, on peut envisager un réglage de la force de freinage pour l'adapter à différents types de mises en forme des cheveux. D'autres freins à freinage proportionnel au mouvement peuvent être envisagés, tels par exemple : un frein à graisse, un frein à masselottes frottant contre une paroi cylindrique. On pourrait également envisager l'utilisation d'un frein électrique ou électromagnétique.Thus, the rollers are rotatably mounted in their bearings within each jaw and are rotated during the manual movement of the device along the wick to be treated. The brake cooperating with one of the rollers then makes it possible to limit the speed of passage of the hair between the rollers. Such a brake may be, for example an inertia brake based on the principle of winding a spring on an axis of rotation so that the braking force is proportional to the speed of movement of the device the along the wick. In a variant, it is possible to envisage an adjustment of the braking force to adapt it to different types of shaping of the hair. Other brakes proportional to the movement can be envisaged, such as for example: a grease brake, a brake shoes rubbing against a cylindrical wall. One could also consider the use of an electric or electromagnetic brake.
Dans un mode préféré de réalisation de l'invention, lesdits moyens d'actionnement comprennent un moteur électrique d'entraînement d'un des rouleaux.In a preferred embodiment of the invention, said actuating means comprise an electric motor for driving one of the rollers.
L'appareil selon ce mode de réalisation comprend un rouleau motorisé, l'autre pouvant être monté libre en rotation dans ses paliers au sein de la mâchoire. L'avantage de cette solution est que le moteur électrique permet de garantir une vitesse constante de passage des cheveux entre les rouleaux de calandrage, et sans effort de déplacement, les cheveux étant entraînés par les rouleaux.The apparatus according to this embodiment comprises a motorized roller, the other being able to be rotatably mounted in its bearings within the jaw. The advantage of this solution is that the electric motor makes it possible to guarantee a constant speed of passage of the hair between the calendering rollers, and without any displacement force, the hair being driven by the rollers.
Dans une variante de réalisation de l'appareil de l'invention, les rouleaux sont lisses.In an alternative embodiment of the apparatus of the invention, the rollers are smooth.
Cet appareil réalise alors un lissage en continu, uniforme et rapide des cheveux.This device then performs a smooth, continuous, uniform and fast hair.
Dans une autre variante de réalisation de l'invention, les mâchoires sont montées mobiles entre une position d'ouverture et une position de fermeture, l'une des mâchoires comportant un rouleau denté à dents s'engageant avec les dents du rouleau de l'autre mâchoire.In another embodiment of the invention, the jaws are movably mounted between an open position and a closed position, one of the jaws comprising a toothed toothed roller engaging with the teeth of the roller of the other jaw.
Bien que l'on pourrait imaginer l'utilisation des rouleaux comportant d'autres reliefs s'engageant ou coopérant mutuellement, les reliefs de ces rouleaux dentés forment des vaguelettes lorsqu'ils sont imprimés dans les cheveux. Un tel appareil est utilisé pour réaliser avantageusement des gaufres dans les cheveux.
De préférence, les rouleaux ont un diamètre extérieur compris entre 22 mm et 38 mm, ils ont entre 7 et 25 dents et sont entraînés à une vitesse comprise entre 12 rot/min et 30 rot/min.Although one could imagine the use of the rollers having other engaging or mutually cooperating reliefs, the reliefs of these toothed rollers form wavelets when printed in the hair. Such an apparatus is used to advantageously produce waffles in the hair. Preferably, the rolls have an outer diameter of between 22 mm and 38 mm, they have between 7 and 25 teeth and are driven at a speed of between 12 rpm and 30 rpm.
Ces paramètres sont issus de nombreux tests effectués en laboratoire qui ont permis d'obtenir une chevelure à vagues uniformes, avec des reliefs et des creux, espacées d'une même distance pour un aspect esthétique recherché, tout en favorisant un entraînement efficace des cheveux entre les rouleaux.These parameters are the result of numerous tests carried out in the laboratory which allowed to obtain a hair with uniform waves, with reliefs and hollows, spaced from the same distance for a sought-after aesthetic aspect, while favoring an efficient training of the hair between Rolls; Coils.
De préférence, les mâchoires sont montées mobiles entre une position d'ouverture et une position de fermeture et l'appareil comporte des moyens de détection de la position fermée des mâchoires.Preferably, the jaws are movably mounted between an open position and a closed position and the apparatus comprises means for detecting the closed position of the jaws.
Ces moyens de détection permettent alors de vérifier que les rouleaux sont bien en contact avec les cheveux afin de pouvoir commencer le traitement. Ceci permet donc de démarrer le traitement si les conditions d'un bon fonctionnement sont remplies (par exemple ceci permet de vérifier qu'il n'y a pas de mèche trop épaisse entre les rouleaux ou qu'il n'y a pas de barrette ou autre objet étranger inséré entre les rouleaux). Ces moyens de détection peuvent avantageusement être reliés fonctionnellement à des moyens de commande qui seraient amenés par exemple à démarrer automatiquement le moteur d'entraînement du rouleau. Ainsi l'utilisatrice peut s'assurer de la bonne mise en contact des cheveux avec les moyens de mise en forme et, en même temps, s'affranchir d'une commande manuelle, pour plus d'aisance en utilisation.These detection means then make it possible to verify that the rollers are in contact with the hair in order to be able to start the treatment. This makes it possible to start the treatment if the conditions of a good operation are fulfilled (for example this makes it possible to check that there is no wick too thick between the rollers or that there is no bar or other foreign object inserted between the rolls). These detection means may advantageously be operably connected to control means which would be brought for example to automatically start the drive motor of the roller. Thus the user can ensure the proper contact of the hair with the shaping means and, at the same time, overcome a manual control for ease of use.
Avantageusement, lesdits moyens de détection comprennent un interrupteur électrique ayant une course de déclenchement comprise entre 0 et 4mm.Advantageously, said detection means comprise an electrical switch having a tripping stroke of between 0 and 4 mm.
On aurait pu, certes, imaginer l'utilisation d'un capteur de pression pour envoyer un signal au circuit électrique des moyens de détection à partir d'une valeur prédéterminée de la pression détectée entre les deux mâchoires
fermées. On préfère toutefois l'utilisation d'un interrupteur électrique, car cette solution est plus économique, tout en étant très fiable en fonctionnement. En plaçant l'interrupteur à proximité de la partie de traitement, par exemple à l'extrémité libre d'une mâchoire pivotante, on est sûr que la pince à mâchoires est bien fermée au niveau des rouleaux de traitement. La course de déclenchement de l'interrupteur est choisie de manière à pouvoir adapter le fonctionnement de l'interrupteur à l'épaisseur de la mèche introduite entre les rouleaux.One could, of course, imagine the use of a pressure sensor to send a signal to the electrical circuit of the detection means from a predetermined value of the pressure detected between the two jaws closed. However, the use of an electrical switch is preferred because this solution is more economical, while being very reliable in operation. By placing the switch near the treatment part, for example at the free end of a pivoting jaw, it is certain that the jaw clamp is closed at the treatment rollers. The triggering trip of the switch is chosen so as to adapt the operation of the switch to the thickness of the wick introduced between the rollers.
De préférence, les mâchoires sont montées mobiles entre une position d'ouverture et une position de fermeture et l'appareil comporte des moyens de verrouillage des mâchoires.Preferably, the jaws are movably mounted between an open position and a closed position and the apparatus comprises means for locking the jaws.
Ces moyens permettent de maintenir l'appareil en position fermée, les mâchoires étant rapprochées et les rouleaux en contact avec les cheveux, sans que l'utilisatrice ait à exercer un effort sur les mâchoires. Ceci permet de travailler à une pression constante sur les cheveux et confère plus de confort en utilisation.These means make it possible to keep the apparatus in the closed position, the jaws being close together and the rollers in contact with the hair, without the user having to exert a force on the jaws. This makes it possible to work at a constant pressure on the hair and confers more comfort in use.
Avantageusement, lesdits moyens de verrouillage comprennent un électroaimant.Advantageously, said locking means comprise an electromagnet.
On aurait pu, certes, utiliser un verrou mécanique à crochet et bouton de déverrouillage. On préfère toutefois l'utilisation d'un électroaimant, pour des raisons de confort en utilisation, l'électroaimant pouvant être alimenté pendant le traitement des cheveux, l'appui sur un bouton pouvant rapidement le désactiver et les mâchoires s'ouvrir sous la poussée d'un ressort.It would have been possible, of course, to use a mechanical latch hook and unlock button. However, the use of an electromagnet is preferred for reasons of comfort in use, the electromagnet can be powered during the treatment of the hair, the pressing of a button can quickly disable it and the jaws open under the push of a spring.
Dans une variante de réalisation de l'invention, lesdits rouleaux sont montés de manière démontable par rapport à la poignée.In an alternative embodiment of the invention, said rollers are removably mounted relative to the handle.
Ceci permet d'utiliser plusieurs types de rouleaux : lisses ou striés avec un même appareil, des connecteurs électriques et/ou mécaniques étant alors prévus entre
les rouleaux et le boîtier de l'appareil.This makes it possible to use several types of rollers: smooth or striated with the same apparatus, electrical and / or mechanical connectors then being provided between the rollers and the housing of the device.
Avantageusement, chaque rouleau comporte un élément chauffant relié à un moyen de contrôle de sa température.Advantageously, each roller comprises a heating element connected to a means for controlling its temperature.
Le fait d'associer chaque rouleau à un élément chauffant ayant ses propres moyens de réglage de sa température permet, d'une part, d'avoir une mise en température plus rapide de l'appareil et, d'autre part, de pouvoir varier les températures de chaque rouleau et d'obtenir, par la suite, différents effets dans la mise en forme des cheveux. Ainsi, sachant que le rouleau qui est moins chauffé marque moins les cheveux que celui qui est à une température plus élevée, on peut les utiliser en les appliquant de différentes manières aux cheveux (le rouleau plus chaud pouvant être à l'intérieur ou à l'extérieur de la mèche), afin d'obtenir l'effet souhaité.The fact of associating each roller with a heating element having its own means for adjusting its temperature makes it possible, on the one hand, to have the appliance be warmed more rapidly and, on the other hand, to be able to vary the temperatures of each roll and subsequently obtain different effects in shaping the hair. Thus, knowing that the roll which is less heated less marks the hair than the one which is at a higher temperature, they can be used by applying them in different ways to the hair (the warmer roll can be inside or out). outside of the wick), in order to obtain the desired effect.
L'invention a également pour objet un procédé de traitement des cheveux humains comportant une étape d'introduction de cheveux entre deux mâchoires montées déplaçables l'une par rapport à l'autre, supportant chacune un rouleau de traitement monté avec possibilité de rotation autour de son axe longitudinal, du fait qu'il consiste :The invention also relates to a method for treating human hair comprising a step of introducing hair between two jaws mounted movable relative to each other, each supporting a treatment roller mounted with the possibility of rotation around its longitudinal axis, since it consists of:
- à entraîner au moins l'un des rouleaux de traitement de diamètre extérieur compris entre 22mm et 38mm à une vitesse comprise entre 12 rot/min et 30 rot/min;- To drive at least one of the outer diameter processing rollers between 22mm and 38mm at a speed between 12 rot / min and 30 rot / min;
- à leur appliquer, pendant le déplacement, une température comprise entre 1400C et 2300C, de préférence 2000C.to apply to them, during displacement, a temperature of between 140 ° C. and 230 ° C., preferably 200 ° C.
Un tel procédé permet donc d'appliquer une vitesse constante aux cheveux traités, vitesse qui est adaptée aux dimensions du rouleau et à la température de chauffe de celui-ci, pour ainsi obtenir un traitement des cheveux uniforme et en continu.Such a method therefore makes it possible to apply a constant speed to the treated hair, a speed which is adapted to the dimensions of the roll and to the heating temperature thereof, thereby obtaining a uniform and continuous hair treatment.
De préférence, le procédé de l'invention comprend une étape supplémentaire de détection de la position fermée des mâchoires avant de commander
l'entraînement des rouleaux.Preferably, the method of the invention comprises an additional step of detecting the closed position of the jaws before ordering driving the rollers.
Ceci permet de s'assurer que les cheveux à traiter sont bien au contact des moyens de traitement, pour un traitement efficace et durable.This makes it possible to ensure that the hair to be treated is in contact with the treatment means, for an effective and durable treatment.
L'invention sera mieux comprise à l'étude des modes de réalisation pris à titre nullement limitatif et illustrés dans les figures annexées dans lesquelles :The invention will be better understood with the study of the embodiments taken in no way limiting and illustrated in the accompanying figures in which:
- la figure 1 est une vue latérale d'un appareil selon un mode préféré de réalisation de l'invention, l'appareil étant en position de repos ; - la figure 2a est une vue en coupe longitudinale de l'appareil de la figure- Figure 1 is a side view of an apparatus according to a preferred embodiment of the invention, the apparatus being in the rest position; FIG. 2a is a longitudinal sectional view of the apparatus of FIG.
1 en position de travail et la figure 2b une vue en coupe transversale réalisée avec le plan A-A de la figure 2a ;1 in the working position and Figure 2b a cross-sectional view taken with the plane A-A of Figure 2a;
- la figure 3a est une vue en coupe longitudinale d'un appareil selon un autre mode de réalisation de l'invention illustré en position de travail, et la figure 3b est une vue en coupe transversale réalisée avec le plan B-B de la figure 3a.- Figure 3a is a longitudinal sectional view of an apparatus according to another embodiment of the invention illustrated in the working position, and Figure 3b is a cross-sectional view taken with the plane B-B of Figure 3a.
- les figures 4a à 4f illustrent quelques exemples de rouleaux dentés correspondant à des variantes de réalisation de l'appareil de l'invention.FIGS. 4a to 4f illustrate some examples of toothed rollers corresponding to alternative embodiments of the apparatus of the invention.
L'appareil de la figure 1 est un fer à friser selon un mode préféré de réalisation de l'invention, l'appareil étant illustré en position ouverte ou de repos. L'appareil comprend deux mâchoires 2, 3 montées pivotantes autour d'une articulation 5, formant une poignée 1 de type pince et munie à l'arrière d'un embout 6 apte à recevoir un connecteur rotatif pour un câble d'alimentation en énergie électrique principal (non représentés sur les figures). Chaque mâchoire 2, 3 comprend un boîtier 7, 8 creux apte à recevoir un rouleau 10,11 en son extrémité avant 4. Les boîtiers 7,8 sont avantageusement réalisés en une matière plastique par une technique d'injection. Un bouton 12 est prévu sur un côté du boîtier pour sélectionner le sens de rotation dans l'entraînement du rouleau, tel qu'il sera expliqué par la suite. En position ouverte, l'appareil peut recevoir une mèche de cheveux à traiter introduite entre les rouleaux 10, 11 , l'appareil étant ensuite fermé en exerçant une pression sur les mâchoires 2, 3 qui sont maintenues en position fermée par des moyens de verrouillage 14
actionnés par un bouton 15 de verrouillage/déverrouillage.The apparatus of Figure 1 is a curling iron according to a preferred embodiment of the invention, the apparatus being illustrated in the open position or rest. The apparatus comprises two jaws 2, 3 pivotally mounted about a hinge 5, forming a handle 1 of the clamp type and provided at the rear with a tip 6 adapted to receive a rotary connector for a power supply cable. main electric (not shown in the figures). Each jaw 2, 3 comprises a hollow housing 7, 8 adapted to receive a roll 10,11 at its front end 4. The housings 7,8 are advantageously made of a plastic material by an injection technique. A button 12 is provided on one side of the housing to select the direction of rotation in the roller drive, as will be explained later. In the open position, the apparatus can receive a lock of hair to be treated introduced between the rollers 10, 11, the apparatus then being closed by exerting a pressure on the jaws 2, 3 which are held in closed position by locking means 14 actuated by a button 15 locking / unlocking.
La figure 2a illustre une vue en coupe longitudinale de l'appareil de la figure 1 , représenté en position fermée ou de travail. Le rouleau 10 est monté libre en rotation autour de l'axe longitudinal 20 de la mâchoire 2 en étant maintenu dans des paliers 21 au sein du boîtier 7. Le rouleau 10 renferme un élément chauffant 18 qui peut être un élément chauffant électrique du type résistif, à CTP, à infrarouges, etc. alimenté en énergie par un connecteur rotatif 19 recevant l'alimentation du câble principal de l'appareil. L'élément chauffant 18 est placé au centre du rouleau 10 en étant en contact thermique avec le corps du rouleau pour lui transférer intégralement ses calories. Le rouleau est réalisé en un matériau métallique bon conducteur de la chaleur du type aluminium ou ses alliages, cuivre ou ses alliages ou en acier. La température du rouleau 10 en fonctionnement est comprise entre 1400C et 2300C et elle est établie de préférence à 2000C.Figure 2a illustrates a longitudinal sectional view of the apparatus of Figure 1, shown in closed or working position. The roller 10 is rotatably mounted about the longitudinal axis 20 of the jaw 2 while being held in bearings 21 within the housing 7. The roller 10 encloses a heating element 18 which may be an electrical heating element of the resistive type , CTP, infrared, etc. powered by a rotary connector 19 receiving power from the main cable of the apparatus. The heating element 18 is placed in the center of the roll 10 while being in thermal contact with the body of the roll in order to fully transfer its calories to it. The roll is made of a metal material which is a good heat conductor of the aluminum type or its alloys, copper or alloys, or steel. The temperature of the roll 10 in operation is between 140 ° C. and 230 ° C. and is preferably set at 200 ° C.
Le rouleau 11 est monté rotatif autour de l'axe longitudinal 23 de la mâchoire 3 en étant supporté dans des paliers 24 au sein du boîtier 8 de celle-ci, en étant, lui, entraîné en rotation par un moto-réducteur 25 recevant l'alimentation du câble principal de l'appareil. Pour assurer un bon entraînement des cheveux, le moto-réducteur 25 développe un couple d'entraînement du rouleau 11 compris entre 2000 g*cm et 12000 g*cm, de préférence 5500 g*cm. Le rouleau 11 est réalisé en un matériau métallique bon conducteur de la chaleur du type aluminium ou ses alliages, cuivre ou ses alliages ou en acier. Dans une variante, le rouleau 11 pourrait contenir un élément chauffant électrique du même type que celui du rouleau 10.The roller 11 is rotatably mounted about the longitudinal axis 23 of the jaw 3 being supported in bearings 24 within the housing 8 thereof, being itself rotated by a geared motor 25 receiving the supply of the main cable of the device. To ensure a good workout of the hair, the geared motor 25 develops a driving torque of the roller 11 between 2000 g * cm and 12000 g * cm, preferably 5500 g * cm. The roller 11 is made of a metal material which is a good heat conductor of the aluminum type or its alloys, copper or alloys, or steel. In a variant, the roll 11 could contain an electric heating element of the same type as that of the roll 10.
Selon l'invention, les rouleaux 10, 1 1 ont des dimensions préétablies choisies en relation avec la vitesse de l'arbre de sortie 26 du moto-réducteur 25 de manière à imprimer au rouleau 11 une vitesse de rotation, qui est, dans cet exemple, la vitesse de l'arbre de sortie 26 du moto-réducteur 25 et est comprise entre 12 et 30 rot/min. Ce rouleau 10 moteur entraîne directement en rotation le rouleau 11 libre, les deux rouleaux ayant un diamètre extérieur
compris entre 22mm et 38mm.According to the invention, the rollers 10, 1 1 have predetermined dimensions chosen in relation to the speed of the output shaft 26 of the geared motor 25 so as to print to the roller 11 a speed of rotation, which is, in this for example, the speed of the output shaft 26 of the geared motor 25 and is between 12 and 30 rpm. This motor roll directly drives the free roll 11 in rotation, the two rollers having an outside diameter between 22mm and 38mm.
Les rouleaux 10, 11 peuvent avoir une surface lisse plus adaptée au lissage des cheveux. Dans un exemple de réalisation de l'invention, les rouleaux ont un diamètre extérieur égal à 26,5mm et une épaisseur de la paroi comprise entre 3mm et 7mm, de préférence égale à 5mm. Dans une variante, la surface externe des rouleaux peut être recouverte d'un matériau élastomère lui permettant de mieux s'adapter à l'épaisseur de la mèche de cheveux à traiter.The rollers 10, 11 may have a smooth surface more suitable for smoothing the hair. In an exemplary embodiment of the invention, the rollers have an outer diameter equal to 26.5 mm and a wall thickness of between 3 mm and 7 mm, preferably equal to 5 mm. In a variant, the outer surface of the rollers may be covered with an elastomeric material allowing it to better adapt to the thickness of the lock of hair to be treated.
La longueur d'un rouleau est comprise entre 60mm et 70mm. Le rouleau 10 monté libre en rotation a une même forme et des mêmes dimensions que le rouleau 11 et tourne à une même vitesse que celui-ci, mais dans un sens contraire.The length of a roll is between 60mm and 70mm. The roller 10 mounted free to rotate has the same shape and dimensions as the roller 11 and rotates at the same speed as the latter, but in a contrary direction.
Les rouleaux illustrés aux figures sont crénelés, leur périphérie étant munie de dents 27, respectivement 28 s'engageant mutuellement (fig.2b) et sont destinés à réaliser des gaufres dans les cheveux. Chaque rouleau 10, 11 comprend entre 7 et 25 dents, le rouleau 10 ayant un même nombre de dents que le rouleau 11.The rollers illustrated in the figures are crenellated, their periphery being provided with mutually engaging teeth 27 and 28 respectively (FIG. 2b) and are intended to produce waffles in the hair. Each roll 10, 11 comprises between 7 and 25 teeth, the roll 10 having the same number of teeth as the roll 11.
Différentes formes et dimensions des dents sont illustrées aux figures 4a à 4f. Ainsi, la figure 4a illustre un rouleau dit de grand diamètre étant muni de 8 dents faisant un angle au sommet de 30°. Le rouleau de la figure 4a a un diamètre extérieur ou de tête des dents de 37.3mm et un diamètre de pied de 19.6mm. Le rouleau de la figure 4b est également un rouleau de grand diamètre, le diamètre de tête étant donc égal à 37.3mm, mais il comporte 7 dents. Le détail B de la figure 4b représente une vue à échelle agrandie du sommet d'une dent et le détail C représente une vue à échelle agrandie de la base d'une dent du rouleau de la figure 4b.Different shapes and dimensions of the teeth are illustrated in FIGS. 4a to 4f. Thus, Figure 4a illustrates a so-called large diameter roller being provided with 8 teeth making an angle at the top of 30 °. The roller of Figure 4a has an outer diameter or head of teeth of 37.3mm and a foot diameter of 19.6mm. The roller of Figure 4b is also a roll of large diameter, the head diameter is equal to 37.3 mm, but it has 7 teeth. Detail B of Figure 4b shows an enlarged view of the top of a tooth and detail C shows an enlarged view of the tooth base of the roller of Figure 4b.
La figure 4c illustre un autre type de rouleau, dit de moyen diamètre, ayant un diamètre de tête de 27.3mm, un diamètre de pied de 19,5mm et comportant 10 dents, l'angle au sommet d'une dent étant de 50°.
La figure 4d illustre un rouleau dit de petit diamètre, ayant un diamètre de tête de 25.9mm, un diamètre de pied de 21.1 mm et comportant 25 dents, l'angle au sommet des dents étant de 23°.FIG. 4c illustrates another type of roller, called medium diameter, having a head diameter of 27.3 mm, a root diameter of 19.5 mm and having 10 teeth, the angle at the top of a tooth being 50 ° . Figure 4d illustrates a so-called small diameter roller, having a head diameter of 25.9mm, a root diameter of 21.1mm and having 25 teeth, the apex angle of the teeth being 23 °.
La figure 4e illustre un rouleau de grand diamètre à dents plates. Le rouleau comporte 8 dents, a un diamètre de tête de 37.3mm, un diamètre de pied de 18.9mm, l'angle au sommet des dents étant de 20°. Les dents sont aplaties, par exemple sur une distance de 2mm au sommet de manière à imprimer un motif à stries plates dans les vaguelettes issues du gaufrage. Le sommet et la base des dents comportent des rayons de raccordement de 0.5mm, tel que visible sur les détails B et C de la figure 4e.Figure 4e illustrates a large diameter flat-toothed roll. The roller has 8 teeth, has a head diameter of 37.3mm, a root diameter of 18.9mm, the angle at the top of the teeth is 20 °. The teeth are flattened, for example a distance of 2mm at the top so as to print a flat streak pattern in the wavelets from the embossing. The top and the base of the teeth have 0.5mm connecting radii, as visible in details B and C of Figure 4e.
La figure 4f illustre un rouleau de grand diamètre à dents arrondies. Le rouleau comporte 8 dents, a un diamètre de tête de 33mm, un diamètre de pied de 23.4mm. Les dents sont arrondies, le sommet et la base des dents comportent des rayons de raccordement de 2.8mm, tel que visible sur les détails B et C de la figure 4f. De telles dents arrondies arrivent à imprimer un motif à vaguelettes uniformes et bien marquées lors du gaufrage.Figure 4f illustrates a large diameter roller with rounded teeth. The roller has 8 teeth, has a head diameter of 33mm, a foot diameter of 23.4mm. The teeth are rounded, the top and base of the teeth have 2.8mm connecting radii, as seen in details B and C of Figure 4f. Such rounded teeth are able to print a pattern with ripples uniform and well marked during embossing.
Dans une variante avantageuse de réalisation de l'invention, les rouleaux 10, 11 sont montés amovibles dans leurs supports au sein des mâchoires 2,3. Ainsi, les rouleaux illustrés aux figures 4a à 4f comportent tous un même diamètre interne de fixation autour d'un élément chauffant, d'environ 12mm. Pour des valeurs préétablies de la température et de la vitesse du rouleau 10,11 , la forme obtenue dans les vaguelettes de gaufrage (le pas ou la distance entre deux sommets successifs, leur profondeur) dépend du profil des dents et de leurs dimensions. Ainsi, le rouleau des figures 4a, 4b imprime des vaguelettes espacées et profondes, alors que celui de la figure 4d, marque, lui, des petites ondulations dans les cheveux.In an advantageous embodiment of the invention, the rollers 10, 11 are removably mounted in their supports within the jaws 2, 3. Thus, the rollers illustrated in Figures 4a to 4f all have the same internal diameter of fixing around a heating element, about 12mm. For pre-established values of the temperature and the speed of the roll 10,11, the shape obtained in the embossing wavelets (the pitch or the distance between two successive vertices, their depth) depends on the profile of the teeth and their dimensions. Thus, the roll of Figures 4a, 4b prints ripples spaced and deep, while that of Figure 4d, mark him, small undulations in the hair.
Selon un aspect avantageux de l'invention, l'appareil est muni de moyens de détection 30 (fig.1 ) pour détecter la position fermée des mâchoires 2, 3. Dans
le mode de réalisation représenté à la figure 2a, les moyens de détection comprennent un interrupteur 31 monté dans le boîtier 8 de la mâchoire 3 actionné par une protubérance 32 en vis-à-vis appartenant au boîtier 7 de la mâchoire 2. Lorsque les deux mâchoires 2 et 3 sont fermées, la protubérance 32 prend appui sur la partie supérieure de l'interrupteur 31 et ferme les contacts de ce dernier, ce qui a pour effet de mettre en marche automatiquement le moto-réducteur 25. La course de déclenchement de l'interrupteur 31 est établie de sorte à tenir compte de l'épaisseur d'une mèche de cheveux introduite entre les rouleaux 10,11. Ainsi, cette course de déclenchement est comprise entre 0 et 4mm. L'interrupteur 31 est agencé au voisinage de l'une des extrémités des rouleaux de traitement, afin de détecter la bonne condition de fermeture des mâchoires à ce niveau.According to an advantageous aspect of the invention, the apparatus is provided with detection means 30 (FIG. 1) for detecting the closed position of the jaws 2, 3. the embodiment shown in Figure 2a, the detection means comprise a switch 31 mounted in the housing 8 of the jaw 3 actuated by a protrusion 32 vis-à-vis belonging to the housing 7 of the jaw 2. When both jaws 2 and 3 are closed, the protrusion 32 is supported on the upper part of the switch 31 and closes the contacts of the latter, which has the effect of automatically switching on the geared motor 25. the switch 31 is set to take into account the thickness of a lock of hair introduced between the rollers 10,11. Thus, this trigger stroke is between 0 and 4mm. The switch 31 is arranged in the vicinity of one end of the treatment rollers, in order to detect the good condition of closure of the jaws at this level.
Dans l'exemple représenté aux figures 1 et 2a, l'interrupteur 31 est situé à l'extrémité avant de la mâchoire 3 ou du rouleau 11. Dans un autre exemple de réalisation de l'invention (non représenté aux figures), les rouleaux 10,11 sont montés amovibles et, de ce fait, l'interrupteur 31 est avantageusement agencé au niveau de l'extrémité arrière du rouleau 11 , vers le centre de la mâchoire 3, de manière à ce que le câblage soit conservé seulement sur la partie fixe de la mâchoire 3, le rouleau 11 venant, lui, se connecter, à son extrémité arrière, dans des fiches d'alimentation prévues à cet effet dans la même partie non amovible de la mâchoire 3.In the example shown in FIGS. 1 and 2a, the switch 31 is situated at the front end of the jaw 3 or the roll 11. In another embodiment of the invention (not shown in the figures), the rollers 10,11 are removably mounted and, therefore, the switch 31 is advantageously arranged at the rear end of the roller 11, towards the center of the jaw 3, so that the wiring is kept only on the fixed part of the jaw 3, the roller 11 coming to connect, at its rear end, in the power supply plugs provided for this purpose in the same non-removable part of the jaw 3.
Lorsque les contacts de l'interrupteur 31 sont fermés, le moto-réducteur 25 entraîne en rotation le rouleau 11 , le sens de rotation étant choisi par l'utilisatrice à l'aide du bouton de sélection 12 (fig.1 ). L'extrémité avant de chaque boîtier 7, 8 de mâchoire peut avantageusement comporter des empreintes (non représentées sur les dessins) réalisées de préférence en une matière à toucher doux permettant aux doigts de l'utilisatrice de prendre appui pour bien amener en contact les extrémités des mâchoires l'une contre l'autre et faciliter ainsi la fermeture des mâchoires.When the contacts of the switch 31 are closed, the geared motor 25 rotates the roller 11, the direction of rotation being chosen by the user with the selection button 12 (fig.1). The front end of each jaw housing 7, 8 may advantageously comprise indentations (not shown in the drawings) preferably made of a soft-touch material allowing the user's fingers to bear in order to bring the ends into contact with one another. jaws against each other and thus facilitate the closure of the jaws.
Les moyens de verrouillage 14 maintiennent les mâchoires 2 et 3 en position
fermée lorsque l'utilisatrice active un bouton 15. Dans l'exemple représenté à la figure 2a, en appuyant sur le bouton 15 on déclenche l'alimentation d'un électroaimant 16 pour la durée du traitement. En appuyant à nouveau sur le bouton 15 on désactive l'alimentation de l'électroaimant 16 et les mâchoires s'ouvrent automatiquement en étant poussées par un ressort de compression agencé autour de l'articulation 5.The locking means 14 hold the jaws 2 and 3 in position closed when the user activates a button 15. In the example shown in Figure 2a, pressing the button 15 triggers the supply of an electromagnet 16 for the duration of treatment. Pressing the button 15 again deactivates the supply of the electromagnet 16 and the jaws automatically open by being pushed by a compression spring arranged around the hinge 5.
L'appareil a une forme générale de pince comportant deux mâchoires amenées à pivoter autour d'une articulation d'extrémité. En partant de l'articulation pivotante en direction de l'extrémité libre des mâchoires, on retrouve, dans l'ordre, les moyens de verrouillage 14, puis le moto-réducteur 25, la partie active comportant les rouleaux de traitement 10 et 11 , puis finalement les moyens de détection 30 de la position fermée des mâchoires 2, 3 (ou, en variante, les moyens de détection sont agencés avant les rouleaux de traitement 10,11 en partant de la poignée). Cette addition de fonctions en série permet d'allonger les bras de telle sorte que les rouleaux viennent se fermer encore plus parallèlement (par rapport à un appareil de type ciseaux), ce qui permet de bien étaler une mèche de cheveux à plat et d'améliorer ainsi son traitement.The apparatus has a general shape of a clamp comprising two jaws pivoted about an end joint. Starting from the pivoting articulation in the direction of the free end of the jaws, there are, in order, the locking means 14, then the geared motor 25, the active part comprising the treatment rolls 10 and 11, then finally the detection means 30 of the closed position of the jaws 2, 3 (or, alternatively, the detection means are arranged before the treatment rollers 10,11 starting from the handle). This addition of functions in series makes it possible to lengthen the arms so that the rollers are closed even more in parallel (with respect to a scissors-type apparatus), which makes it possible to spread a lock of hair flat and easily. thus improve its treatment.
En fonctionnement, l'utilisatrice commence par choisir le sens de rotation du moteur qui détermine le sens de déplacement de l'appareil par rapport aux cheveux à traiter. Elle insère ensuite une mèche de cheveux à l'intérieur de l'appareil, entre les rouleaux 10 et 11 et ferme l'appareil en rapprochant les mâchoires 2 et 3. Lorsque le bon contact entre les rouleaux 10 et 11 est établi par les moyens de détection 30, le moto-réducteur 25 entraîne le rouleau 11 qui entraîne à son tour le rouleau 10 à la bonne vitesse permettant aux dents 27 et 28 d'imprimer une forme de vagues dans les cheveux traités. Pour éviter la fatigue due au maintien manuel en position fermée des mâchoires, l'utilisatrice active les moyens de verrouillage en position fermée des mâchoires en actionnant le bouton 15.In operation, the user begins by choosing the direction of rotation of the motor that determines the direction of movement of the device relative to the hair to be treated. It then inserts a lock of hair inside the device, between the rollers 10 and 11 and closes the device by bringing the jaws 2 and 3 closer together. When the good contact between the rollers 10 and 11 is established by the means 30, the geared motor 25 drives the roller 11 which in turn drives the roller 10 at the right speed allowing the teeth 27 and 28 to print a wave shape in the treated hair. To avoid fatigue due to the manual holding in the closed position of the jaws, the user activates the locking means in the closed position of the jaws by actuating the button 15.
Il est à remarquer que, lorsque seulement l'un des rouleaux comporte un
élément chauffant, l'autre rouleau se trouve à une température inférieure au premier, car il est chauffé seulement par contact et par l'interposition de la mèche de cheveux à traiter avec celui-ci. De ce fait, le rouleau moins chauffé imprime très faiblement un relief dans les cheveux. Dans une telle construction d'appareil, en orientant, lors du traitement, le rouleau plus chaud vers l'intérieur de la mèche de cheveux, on arrive à conférer plus de relief à la partie interne de la mèche et moins à la partie externe, ce qui a pour effet de gonfler plus la partie interne et de donner ainsi du volume à la coiffure.It should be noted that when only one of the rolls has a heating element, the other roller is at a lower temperature than the first, because it is heated only by contact and by the interposition of the lock of hair to be treated therewith. As a result, the less heated roller prints very lightly a relief in the hair. In such an apparatus construction, by orienting, during the treatment, the warmer roller towards the inside of the lock of hair, it is possible to confer more relief on the inner part of the lock and less on the outer part, which has the effect of inflating more the inner part and thus give volume to the hairstyle.
Différents effets peuvent être obtenus au niveau de l'empreinte imprimée aux cheveux par l'appareil lorsque l'on associe un élément chauffant et des moyens de réglage de sa température à chaque rouleau 10,11. Ainsi, plusieurs structures de gaufrage peuvent être obtenues en plaçant l'appareil par rapport à la mèche de cheveux et en ajustant par la suite la température des rouleaux.Various effects can be obtained at the level of the print imprinted on the hair by the apparatus when a heating element is associated with means for adjusting its temperature at each roller 10, 11. Thus, several embossing structures can be obtained by placing the apparatus relative to the lock of hair and subsequently adjusting the temperature of the rollers.
Les figures 3a et 3b illustrent un autre mode de réalisation de l'invention où les composants ayant une même fonction ont gardé les mêmes numéros de référence que ceux des figures précédentes. L'appareil est représenté en position fermée ou de travail et comporte deux mâchoires 2 et 3 montées pivotantes autour d'une articulation 5, chaque mâchoire supportant des rouleaux 10, 11. Dans ce mode de réalisation, chaque rouleau 10, 11 est monté libre en rotation dans des paliers 21 , respectivement 24, de son boîtier 7, respectivement 8. Chaque rouleau 10, 11 renferme un élément chauffant 18 électrique recevant l'alimentation par un connecteur tournant 19.FIGS. 3a and 3b illustrate another embodiment of the invention in which the components having the same function have kept the same reference numbers as those of the preceding figures. The apparatus is shown in the closed or working position and comprises two jaws 2 and 3 pivotally mounted about a hinge 5, each jaw supporting rollers 10, 11. In this embodiment, each roll 10, 11 is freely mounted. in rotation in bearings 21, respectively 24, of its housing 7, respectively 8. Each roller 10, 11 contains an electric heating element 18 receiving the supply via a rotating connector 19.
Les rouleaux 10 et 11 tournent librement lorsque l'appareil est déplacé manuellement par l'utilisatrice le long d'une mèche. Selon ce mode de réalisation de l'invention, le rouleau 10 comprend un frein 35 à l'extrémité de son arbre de rotation qui limite sa vitesse de rotation. Le frein 35 est un frein à inertie comportant un ressort 36 en spirale dont les spires s'enroulent sur un axe 37, faisant que l'effort de freinage est proportionnel à la vitesse de rotation du rouleau et donc de déplacement de l'appareil le long de la mèche. Les rouleaux 10, 11 ont les mêmes paramètres constructifs et fonctionnels que
ceux de l'appareil précédemment décrit. Le frein 35 est alors prévu pour limiter la vitesse de rotation des rouleaux à maximum 30 rot/min. Afin d'éviter que l'utilisatrice maintienne l'appareil immobile dans les cheveux, un déplacement continu de l'appareil serait imposé et signalé par un signal auditif ou lumineux.The rollers 10 and 11 rotate freely when the apparatus is manually moved by the user along a wick. According to this embodiment of the invention, the roller 10 comprises a brake 35 at the end of its rotation shaft which limits its speed of rotation. The brake 35 is an inertia brake comprising a spiral spring 36 whose turns wind on an axis 37, so that the braking force is proportional to the rotational speed of the roller and therefore to the displacement of the device. along the wick. The rollers 10, 11 have the same constructive and functional parameters as those of the apparatus previously described. The brake 35 is then provided to limit the rotational speed of the rolls at maximum 30 rpm. In order to prevent the user from holding the device motionless in the hair, a continuous movement of the device would be imposed and indicated by an auditory or luminous signal.
En fonctionnement, l'utilisatrice insère une mèche de cheveux à l'intérieur de l'appareil, entre les rouleaux 10 et 11 et le ferme en rapprochant les mâchoires 2 et 3. Lorsque le bon contact entre les rouleaux 10 et 11 est établi par les moyens de détection 30, un dispositif de fermeture automatique, par exemple utilisant un électroaimant maintient l'appareil fermé. Le frein limite la vitesse des rouleaux 10 et 11 qui tournent alors à la bonne vitesse, préétablie en calibrant le frein, et permettent aux dents 27 et 28 d'imprimer une forme de vagues dans les cheveux traités. A la fin du traitement, l'utilisatrice appuie sur un bouton de déverrouillage et les mâchoires s'ouvrent automatiquement en étant poussées par un ressort de compression enroulé autour de l'articulation 5.In operation, the user inserts a lock of hair inside the apparatus between the rollers 10 and 11 and closes it by bringing the jaws 2 and 3 closer together. When the good contact between the rollers 10 and 11 is established by the detection means 30, an automatic closing device, for example using an electromagnet, keeps the apparatus closed. The brake limits the speed of the rollers 10 and 11 which then rotate at the correct speed, pre-set by calibrating the brake, and allow the teeth 27 and 28 to print a wave shape in the treated hair. At the end of the treatment, the user presses an unlocking button and the jaws open automatically by being pushed by a compression spring wound around the joint 5.
D'autres variantes et modes de réalisation de l'invention peuvent être envisagés sans sortir du cadre de ses revendications.Other variants and embodiments of the invention may be envisaged without departing from the scope of its claims.
Ainsi, l'appareil peut être muni d'un dispositif de protection en cas de surcharge du moteur électrique d'entraînement de l'un des rouleaux. En effet, un tel dispositif est prévu pour arrêter le moteur et/ou pour ouvrir les mâchoires lorsqu'un dispositif de mesure de l'intensité du moteur détecte le dépassement d'un seuil limite dû, par exemple, à l'arrivée de l'appareil en butée contre le cuir chevelu lorsque ce dernier est déplacé sur la mèche de la pointe vers la racine des cheveux.
Thus, the apparatus may be provided with a protection device in case of overload of the electric drive motor of one of the rollers. Indeed, such a device is provided for stopping the motor and / or for opening the jaws when a device for measuring the intensity of the motor detects the exceeding of a threshold threshold due, for example, to the arrival of the motor. device in abutment against the scalp when it is moved on the wick of the tip towards the hairline.
Claims
1. Appareil de coiffure comportant deux mâchoires (2,3), les cheveux pouvant être insérés entre les deux mâchoires, l'une de leurs extrémités formant une poignée (1) et supportant chacune à l'autre extrémité un rouleau de traitement (10,11) agencé avec possibilité de rotation autour de l'axe longitudinal de la mâchoire, au moins l'un des rouleaux comportant un élément chauffant (18), caractérisé en ce que l'appareil comporte des moyens d'actionnement d'au moins un rouleau ayant un diamètre extérieur compris entre 22mm et 38mm pour lui imprimer une vitesse de rotation comprise entre 12rot/min et 30rot/min, la température du rouleau (10,11) au niveau de la surface de contact avec les cheveux étant comprise entre 1400C et 2300C, de préférence 2000C.Hairdressing apparatus comprising two jaws (2,3), the hair being able to be inserted between the two jaws, one of their ends forming a handle (1) and each supporting at the other end a treatment roller (10). 11) arranged rotatably about the longitudinal axis of the jaw, at least one of the rolls having a heating element (18), characterized in that the apparatus comprises actuating means of at least a roller having an outside diameter of between 22mm and 38mm to impart a rotational speed of between 12rot / min and 30rot / min, the temperature of the roll (10,11) at the level of the area of contact with the hair being between 140 0 C and 230 0 C, preferably 200 0 C.
2. Appareil selon la revendication 1 , caractérisé en ce que lesdits moyens d'actionnement comprennent un frein (35) coopérant avec un rouleau (10) monté libre en rotation.2. Apparatus according to claim 1, characterized in that said actuating means comprise a brake (35) cooperating with a roller (10) rotatably mounted.
3. Appareil selon la revendication 1 , caractérisé en ce que lesdits moyens d'actionnement comprennent un moteur électrique d'entraînement d'un des rouleaux.3. Apparatus according to claim 1, characterized in that said actuating means comprise an electric motor driving one of the rollers.
4. Appareil selon l'une des revendications précédentes, caractérisé en ce que les rouleaux (10,11) sont lisses.4. Apparatus according to one of the preceding claims, characterized in that the rollers (10,11) are smooth.
5. Appareil selon l'une des revendications précédentes, caractérisé en ce que les mâchoires (2,3) sont montées mobiles entre une position d'ouverture et une position de fermeture, l'une des mâchoires comportant un rouleau (10) denté à dents (27) s'engageant avec les dents (28) du rouleau (11 ) de l'autre mâchoire.5. Apparatus according to one of the preceding claims, characterized in that the jaws (2,3) are movably mounted between an open position and a closed position, one of the jaws comprising a roller (10) toothed to teeth (27) engaging with the teeth (28) of the roller (11) of the other jaw.
6. Appareil selon la revendication 5, caractérisé en ce que les rouleaux (10,11) ont un diamètre extérieur compris entre 22 mm et 38 mm, ils ont entre 7 et 25 dents et sont entraînés à une vitesse comprise entre 12 rot/min et 30 rot/min.Apparatus according to claim 5, characterized in that the rollers (10,11) have an outer diameter of between 22 mm and 38 mm, they have between 7 and 25 teeth and are driven at a speed between 12 rot / min and 30 rot / min.
7. Appareil selon l'une des revendications précédentes, caractérisé en ce que les mâchoires (2,3) sont montées mobiles entre une position d'ouverture et une position de fermeture et qu'il comporte des moyens de détection (30) de la position fermée des mâchoires.7. Apparatus according to one of the preceding claims, characterized in that the jaws (2,3) are movably mounted between an open position and a closed position and that it comprises means for detecting (30) the closed position of the jaws.
8. Appareil selon la revendication 7, caractérisé en ce que lesdits moyens de détection (30) comprennent un interrupteur électrique (31) ayant une course de déclenchement comprise entre 0 et 4mm.8. Apparatus according to claim 7, characterized in that said detection means (30) comprise an electrical switch (31) having a trip distance of between 0 and 4mm.
9. Appareil selon l'une des revendications précédentes, caractérisé en ce que les mâchoires (2,3) sont montées mobiles entre une position d'ouverture et une position de fermeture et qu'il comporte des moyens de verrouillage (14) en position fermée des mâchoires.9. Apparatus according to one of the preceding claims, characterized in that the jaws (2,3) are movably mounted between an open position and a closed position and that it comprises locking means (14) in position closed jaws.
10. Appareil selon la revendication 9, caractérisé en ce que lesdits moyens de verrouillage (14) comprennent un électroaimant (16).10. Apparatus according to claim 9, characterized in that said locking means (14) comprise an electromagnet (16).
11. Appareil selon l'une des revendications précédentes, caractérisé en ce que lesdits rouleaux (10,11) sont montés de manière démontable par rapport à la poignée.11. Apparatus according to one of the preceding claims, characterized in that said rollers (10,11) are removably mounted relative to the handle.
12. Appareil selon l'une des revendications précédentes, caractérisé en ce que chaque rouleau (10,11 ) comporte un élément chauffant relié à un moyen de contrôle de sa température.12. Apparatus according to one of the preceding claims, characterized in that each roller (10,11) comprises a heating element connected to a means for controlling its temperature.
13. Procédé de traitement des cheveux humains comportant une étape d'introduction de cheveux entre deux mâchoires montées déplaçables l'une par rapport à l'autre, supportant chacune un rouleau de traitement monté avec possibilité de rotation autour de son axe longitudinal, caractérisé en ce qu'il consiste :13. A method of treating human hair comprising a step of introducing hair between two jaws mounted movable relative to each other, each supporting a treatment roller mounted with the possibility of rotation about its longitudinal axis, characterized in that it consists of:
- à entraîner au moins l'un des rouleaux de traitement de diamètre extérieur compris entre 22mm et 38mm à une vitesse comprise entre 12 rot/min et 30 rot/min; - à leur appliquer, pendant le déplacement, une température comprise entre- To drive at least one of the outer diameter processing rollers between 22mm and 38mm at a speed between 12 rot / min and 30 rot / min; - to apply to them, during the displacement, a temperature between
1400C et 2300C, de préférence 2000C.140 0 C and 230 0 C, preferably 200 0 C.
14. Procédé de traitement selon la revendication 13, caractérisé en ce qu'il comprend une étape supplémentaire de détection de la position fermée des mâchoires avant de commander l'entraînement des rouleaux. 14. Treatment process according to claim 13, characterized in that it comprises an additional step of detecting the closed position of the jaws before controlling the driving of the rollers.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08787794A EP2120629B1 (en) | 2007-03-16 | 2008-03-14 | Hair dressing device |
CN2008900000372U CN201541948U (en) | 2007-03-16 | 2008-03-14 | Hairdressing appliance |
AT08787794T ATE509542T1 (en) | 2007-03-16 | 2008-03-14 | HAIRSTYLING APPARATUS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0701917 | 2007-03-16 | ||
FR0701917A FR2913570B1 (en) | 2007-03-16 | 2007-03-16 | HAIRSTYLING APPARATUS |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008132345A2 true WO2008132345A2 (en) | 2008-11-06 |
WO2008132345A3 WO2008132345A3 (en) | 2009-01-15 |
Family
ID=38660825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2008/000338 WO2008132345A2 (en) | 2007-03-16 | 2008-03-14 | Hair dressing device |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2120629B1 (en) |
CN (1) | CN201541948U (en) |
AT (1) | ATE509542T1 (en) |
ES (1) | ES2366600T3 (en) |
FR (1) | FR2913570B1 (en) |
WO (1) | WO2008132345A2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2366306A1 (en) | 2010-03-17 | 2011-09-21 | Tenacta Group S.p.A. | Electrical apparatus for hair styling |
EP2651260A2 (en) | 2010-12-17 | 2013-10-23 | TF3 Limited | Hair styling device |
US9185957B2 (en) | 2013-06-14 | 2015-11-17 | Trade Box, Llc | Automatic hair styling device |
US9615643B2 (en) | 2012-06-11 | 2017-04-11 | Tf3 Limited | Hair styling device |
US9854891B2 (en) | 2007-12-17 | 2018-01-02 | Tf3 Limited | Hair styling aid |
US10485317B2 (en) | 2014-03-07 | 2019-11-26 | Hd3 Limited | Hair styling device |
US10772406B2 (en) | 2013-02-05 | 2020-09-15 | Hd3 Limited | Hair styling device |
JP2020537574A (en) * | 2017-10-17 | 2020-12-24 | エイチディースリー リミテッド | Hair styling device, hair styling method, and drive system |
EP4082382A1 (en) * | 2010-08-31 | 2022-11-02 | Jemella Limited | Hair styling appliance |
US11963596B2 (en) | 2018-06-15 | 2024-04-23 | Japham Group Limited | Hair styling device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008016616U1 (en) | 2008-12-17 | 2010-04-29 | Wik Far East Ltd. | The hair styling appliance |
DE202016101485U1 (en) * | 2016-03-17 | 2016-03-31 | Wik Far East Ltd. | Hair styling device for curls or waves of hair |
CN109700594A (en) * | 2019-01-17 | 2019-05-03 | 北京大学第三医院(北京大学第三临床医学院) | A kind of medical eyelashes electric heating curling tweezer and control method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2910988A (en) * | 1956-02-01 | 1959-11-03 | Anne P Treadaway | Hair straightening device |
EP0940100A1 (en) * | 1998-03-04 | 1999-09-08 | Elsa Buheitel | Applicator for hair-treatment substances |
WO2002058503A1 (en) * | 2001-01-26 | 2002-08-01 | IFLAND, Jürgen | Device for waving and straightening hair |
WO2005082198A1 (en) * | 2004-02-20 | 2005-09-09 | Dickson Industrial Co. Ltd. | Hair styling apparatus |
-
2007
- 2007-03-16 FR FR0701917A patent/FR2913570B1/en active Active
-
2008
- 2008-03-14 WO PCT/FR2008/000338 patent/WO2008132345A2/en active Application Filing
- 2008-03-14 ES ES08787794T patent/ES2366600T3/en active Active
- 2008-03-14 CN CN2008900000372U patent/CN201541948U/en not_active Expired - Lifetime
- 2008-03-14 EP EP08787794A patent/EP2120629B1/en active Active
- 2008-03-14 AT AT08787794T patent/ATE509542T1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2910988A (en) * | 1956-02-01 | 1959-11-03 | Anne P Treadaway | Hair straightening device |
EP0940100A1 (en) * | 1998-03-04 | 1999-09-08 | Elsa Buheitel | Applicator for hair-treatment substances |
WO2002058503A1 (en) * | 2001-01-26 | 2002-08-01 | IFLAND, Jürgen | Device for waving and straightening hair |
WO2005082198A1 (en) * | 2004-02-20 | 2005-09-09 | Dickson Industrial Co. Ltd. | Hair styling apparatus |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11350719B2 (en) | 2007-12-17 | 2022-06-07 | Tf3 Limited | Hair styling aid |
US10238196B2 (en) | 2007-12-17 | 2019-03-26 | Tf3 Limited | Hair styling aid |
US9854891B2 (en) | 2007-12-17 | 2018-01-02 | Tf3 Limited | Hair styling aid |
EP2366306A1 (en) | 2010-03-17 | 2011-09-21 | Tenacta Group S.p.A. | Electrical apparatus for hair styling |
US8567414B2 (en) | 2010-03-17 | 2013-10-29 | Tenacta Group S.P.A. | Electrical apparatus for hair styling |
EP4082383A1 (en) * | 2010-08-31 | 2022-11-02 | Jemella Limited | Hair styling appliance |
EP4082382A1 (en) * | 2010-08-31 | 2022-11-02 | Jemella Limited | Hair styling appliance |
US9629434B2 (en) | 2010-12-17 | 2017-04-25 | Tf3 Limited | Hair styling device |
US9027570B2 (en) | 2010-12-17 | 2015-05-12 | Tf3 Limited | Hair styling device |
EP2651260A2 (en) | 2010-12-17 | 2013-10-23 | TF3 Limited | Hair styling device |
EP2893832B1 (en) * | 2010-12-17 | 2016-09-14 | TF3 Limited | Hair styling device |
US9788625B2 (en) | 2010-12-17 | 2017-10-17 | Tf3 Limited | Hair styling device |
US8733374B2 (en) | 2010-12-17 | 2014-05-27 | Tf3 Limited | Hair styling device |
EP2651260B1 (en) * | 2010-12-17 | 2015-10-21 | TF3 Limited | Hair styling device |
US9615643B2 (en) | 2012-06-11 | 2017-04-11 | Tf3 Limited | Hair styling device |
US9615644B2 (en) | 2012-06-11 | 2017-04-11 | Tf3 Limited | Hair styling device |
US10772406B2 (en) | 2013-02-05 | 2020-09-15 | Hd3 Limited | Hair styling device |
US9185957B2 (en) | 2013-06-14 | 2015-11-17 | Trade Box, Llc | Automatic hair styling device |
US10485317B2 (en) | 2014-03-07 | 2019-11-26 | Hd3 Limited | Hair styling device |
JP2020537574A (en) * | 2017-10-17 | 2020-12-24 | エイチディースリー リミテッド | Hair styling device, hair styling method, and drive system |
JP7296639B2 (en) | 2017-10-17 | 2023-06-23 | エイチディースリー リミテッド | Hair styling device, hair styling method and drive system |
US11963596B2 (en) | 2018-06-15 | 2024-04-23 | Japham Group Limited | Hair styling device |
Also Published As
Publication number | Publication date |
---|---|
ES2366600T3 (en) | 2011-10-21 |
ATE509542T1 (en) | 2011-06-15 |
EP2120629A2 (en) | 2009-11-25 |
FR2913570B1 (en) | 2011-02-11 |
EP2120629B1 (en) | 2011-05-18 |
WO2008132345A3 (en) | 2009-01-15 |
CN201541948U (en) | 2010-08-11 |
FR2913570A1 (en) | 2008-09-19 |
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