CN106659278A - Hairstyling apparatus for forming curls of different sizes - Google Patents

Abstract

The invention relates to a hairstyling apparatus (1) for curling and smoothing hair, which includes: first and second elongate jaws (2, 3) which are pivotably movable relative to one another, the first jaw (2) having a first casing (6) supporting a first inner planar treatment surface (4), and the second jaw (3) having a second casing (7) supporting a second inner planar treatment surface (5), the inner surfaces (4, 5) being intended for pinching a lock of hair; and at least one heating element (41, 510) intended for heating at least one inner treatment surface (4, 5). According to the invention, the greatest width (l1) of the first casing (6) is no greater than 90% of the greatest width (l2) of the second casing (7). The first casing (6) and/or the second casing (7) is asymmetrical relative to the median plane in a longitudinal cross-section of said first casing (6) or said second casing (7), respectively.

Description

Hairdressing equipment for forming hair curls of different sizes

technical field

The invention relates to a hairdressing appliance capable of using steam for styling hair by contact with it, in particular for straightening human hair but also for curling human hair.

Background technique

Two types of different hairdressing devices that allow straightening or curling are conventionally known: heated or unheated curling irons, hair straighteners or straightening irons and curling irons or curlers or curling irons.

Devices of the hair straightening or curling tong type generally comprise two cheeks pivoting relative to each other about a common axis and each comprising an end carrying a treatment surface, at least one of which is covered by heating, the other treatment surface is used to bring the hair into contact with the first treatment surface, especially by passing from the open position of the cheeks, which allows the insertion of the hair, to the closed position of the cheeks, The closed position is used to put the hair in contact with the heating part.

The hair straightener has two identical flat heating surfaces on the first end of its cheeks, and the heating surfaces grip the hair. Furthermore, the other end of the cheek forms two handles which are used as gripping areas and allow movement from the open position to the closed position. The movement is achieved manually by pressing the two articulated handles of the device towards each other in order to bring the treatment surface into contact with the hair. The straightening of the lock of hair is achieved by moving the device in translation along said lock of hair from the root towards the tip along a line of the closed device.

The curling iron has a surface formed by a heated cylindrical mandrel together with a tuile which clamps by pivoting on the mandrel before winding the entire lock of hair around the mandrel The ends of the locks. The curling of the lock of hair is achieved by at least partially wrapping the lock of hair around one or more treatment surfaces and applying heat so as to primarily statically fix the curl.

In each of these two devices, steam sprayed on the hair is additionally used. This allows improving the hair shape, prolonging the hair shape, maintaining humidity in the hair, conditioning the hair or assisting the penetration of cosmetic actives into the hair.

Steam-operated hair straightening devices are known, for example those described by the applicant in WO2009077672 and EP2591698. The hair straightener of the second document is shown in FIG. 1 . The hair straightener has straightening tongs comprising two identical flat straightening plates facing each other and a steam outlet hole. A steam straightener such as that described in EP2591698 and shown in this application is considered the closest prior art in Figure 1 . The device being marketed is capable of meeting any requirement when it comes to straightening and produces enough steam to condition the hair fiber well. However, in order to produce an excellent straightening and a continuous steam volume, the device comprises a number of internal elements which have a technically optimized configuration but occupy a relatively large space compared to conventional straightening tongs . In fact, the steam-generating cheek includes an evaporation chamber. The receiving plate and the two housings or even the two shells of the evaporation chamber thus each have a casing which has the same width or more the same width in cross-section. However, especially at the steam function, that is to say at the steam hole and at the deflector opposite the hole, the two hoods form an asymmetrical and relatively flat outer line,

Therefore, if the user wishes to use the device to form curls by wrapping the lock of hair around the shield or both shields, it cannot form very round curls nor very regular curls, nor can it be formed after the curls are formed. Glide in smooth and regular motion to release curls.

Contents of the invention

The object of the present invention is to at least partly overcome the aforementioned disadvantages and to provide a hair straightener, steam or non-steam, which is compact and capable of forming regular curls.

Another object of the present invention is to provide a steam or non-steam hair straightener which is small in size and capable of forming curls in a simple way of use.

Another object of the present invention is to provide a steam or non-steam hair straightener capable of forming curls with at least two different sizes (diameters), even with At least three curls of different sizes (diameters).

Another object of the present invention is to provide a steam or non-steam hair straightener capable of curling hair at low cost.

Another object of the present invention is to provide a steam or non-steam hair straightener capable of achieving curls and having a reduced weight.

Another object of the present invention is to provide a hair straightener, steam or non-steam, capable of achieving curls and easy to handle, especially at the two handles or gripping areas , and does not touch the end of the process side of the device, which may sometimes be hot.

Another object of the present invention is to provide a device for styling hair by contact with the hair using steam, which is capable of controlling at least one of the operating parameters of the steam in a reliable manner.

Another object of the present invention is to provide a device for styling hair by contact with the hair using steam capable of ensuring a continuous and even constant flow of steam corresponding to a control preset.

Another object of the present invention is to provide a device for styling hair by contact with the hair using steam, said device being strong, especially strong and shock-resistant, durable in its operation and guaranteed against e.g. mechanical deformation good aging properties.

Another object of the present invention is to provide a device for styling hair by contact with the hair, capable of using steam, which is effective and/or fast in operation.

Another object of the present invention is to provide a device for styling hair by contact with the hair, which makes it possible to use steam before or during the treatment, according to the choice of the hairstyle to be achieved and/or according to the choice of the user, And/or without adding additional accessories.

Another object of the present invention is to provide a device for styling hair by contact with the hair, capable of using steam, which allows easy and convenient use.

Another object of the present invention is to provide a device for styling hair by contact with the hair, capable of using steam, which device enables the use of disposable add-on elements, which are simple and inexpensive in design.

Another object of the present invention is to provide a device for styling hair by contact with hair capable of using steam, which is safe and does not burn the user's scalp or hands.

According to a first aspect of the invention, these objects are achieved by a hairdressing device for curling and straightening hair, said hairdressing device comprising a first cheek and a second cheek, said first and second cheeks being Elongated and pivotally movable relative to each other, the first cheek has a first housing which carries a flat first treatment inner surface, and the second cheek has a second housing which The housing includes a second planar treatment inner surface configured to grip the lock of hair, and at least one heating element is configured to heat the at least one treatment inner surface. In this device, the maximum width l1 of the first housing is less than or equal to 90% of the maximum width l2 of the second housing. This feature, contrary to any conventional cahier des charges requiring straighteners with the same housing width, allows different housings to be provided and thus allows two housings around the housing or in the closed position The whole body can be used to produce curls of different sizes, while keeping the device simple and small. Consider the maximum width as a size ratio reference between the two shells. Furthermore, in the device, at least one of the first housing or the second housing is different from the respective longitudinal section mid-plane of the first housing or the second housing. Symmetrical. This feature allows to obtain curls whose curl radius is not constant in order to produce a more natural effect. According to the invention, said second cheek comprises a steam outlet mechanism oriented towards said first housing, and said steam outlet mechanism is adjacent to said second treatment inner surface. This allows to provide a steam treatment prior to the straightening treatment according to a predetermined sequence of passage of the straightener over the hair strands. The technical elements that allow the generation and extraction of steam are contained in the largest cheeks, that is to say the widest. The vapor generating mechanism includes at least one fluid container in fluid communication with a vaporization chamber that can be heated by a heating mechanism that also serves to heat the treatment surface, or that can be heated by only The heating mechanism for heating the evaporation chamber heats up.

More specifically according to the present invention, the maximum width l1 of the first shell is between 75% and 85% of the maximum width l2 of the second shell, and is preferably equal to the maximum width l2 of the second shell. 80% of width l2. This allows each housing to house all of the internal technical components while limiting the overall external volume of the two hoods or shells that house the hair treatment section.

According to the invention, when the cheeks are in the closed position, the mid-plane P1 of longitudinal section of the first housing is parallel to and separated from the mid-plane P2 of longitudinal section of the second housing. This means that, in a transverse section orthogonal to the longitudinal axis of the straightener, the section does not have orthosymmetry with respect to the straightening plane P1. The straightening plane P1 is defined as comprising the flat straightening region formed by the two mutually opposite flat treatment surfaces in the closed position of the device. Each of the two shells is arranged on each side of the straightening plane. Thus, at the treatment area, the first housing is offset relative to the second housing. This asymmetry or this offset makes it possible to provide a device whose use is intuitive for the user in a certain direction. This arrangement intuitively guides the user towards the most efficient way of use.

More particularly according to the invention, the distance between said two mid-planes (P1, P2) is between 5% and 20% of the maximum width l2 of said second shell, and is preferably equal to said first 10% of the maximum width l2 of the second shell. The offset is sufficiently pronounced to guide the user in an ergonomically high-use manner.

According to the invention, when the cheeks are in the closed position, one of the two longitudinal sides of the first housing is aligned with the longitudinal side of the second housing arranged on the same side of the second housing. Align the edges. This means that in the closed position, the two edges on the same side of the device are opposite each other (as is usually the case for straighteners) and, not to mention, the two edges on the other side of the housing are offset from each other. On the side of the aligned sides, the curve formed by the perimeters of the two shells or casings is relatively symmetrical with respect to the straightened plane P1. The straightening plane P1 is a plane including a straightening region formed by two surfaces in contact with each other. These two aligned edges allow the formation of large-sized curls by winding the hair strands around the two housings in the closed position of the device. These two sides aligned with each other allow the formation of fluffy and very round curls, that is to say regular and not comprising undesired marks, by means of relatively compact equipment compared to the dimensions of the curls obtained.

According to the invention, said processing inner surfaces are flat, identical and opposite each other in the closed position, and said processing inner surfaces are arranged in their respective housings adjacent to the aligned sides. "Adjacent" means as close or adjacent as possible, and taking into account manufacturing constraints, and taking into account the possible presence of barriers between the housing and the treatment surface. This means that the straightening process takes place on one side of the aligned edge. When used on locks of hair to be treated, these sides are arranged on the side of the scalp in order to allow the hair to be finally pulled in a combination of the different treatments offered by the device (in particular straightening, steaming, or even combing or brushing) Straighten and ensure a flawless haircut.

More particularly according to the invention, each of said two longitudinal sides is equipped with at least one flap protruding towards the interior of said housing. The baffle protrudes relative to the periphery of the housing and is oriented towards the interior of the housing. The baffle ideally forms two surfaces with right angles (rather than oblique angles) and one of the two surfaces is parallel to the treatment surface or the surface of the adjacent straightening plate. This flap allows to receive the lock of hair under pressure when the device is switched off, applying shear forces to the lock of hair and bending it more easily. This effect, known as "bolduc", is compared to the effect of the scissors' blades by sliding over the decorative tape in order to form a roll therefrom. The baffles are identical and are arranged at the same position on the cheeks in order to produce the same "strap" effect depending on the inclination of the straightener upwards and downwards. The baffles have a special design and surface condition that allow the hair to have friction on the baffles that is greater than the friction on the outer surface of the cheeks. The surface state may be a rough coating.

According to the invention, the width l of each treatment inner surface is between 40% and 60% of the maximum width l1 of said first housing, preferably between 40% of the maximum width l1 of said first housing Between and 50%, preferably approximately equal to 45% of the maximum width l1 of the first shell. Almost half of the width of the housing is occupied in order to produce the main treatment step required for straightening the locks of hair, namely the straightening step, which can then be curled according to the user's choice.

More specifically according to the present invention, the first housing has a baffle formed in the inner periphery of the first housing and arranged approximately at the side of the second housing in the closed position. Opposite the steam output mechanism. This deflector serves several functions: it protects the scalp from any jets of steam that could burn it, directs the steam towards the hair, which will be passed through twice and thus better treated. The angle and arrangement of the baffles are such that their size is best minimized relative to the closest prior art while maintaining their functionality.

According to the invention, said second housing comprises a comb or brush oriented towards said first housing and adjacent to said second treatment inner surface. When the comb or brush function is set in addition to the straightening function, the sequence of treatment of the locks is as follows: combing or brushing followed by straightening, or in the case of steam formation, steam treatment, followed by combing or brushing, after straighten.

More specifically according to the invention, said first housing has a groove formed on its inner periphery, and said groove is arranged substantially opposite the comb or brush of said second housing in the closed position. This allows accommodating at least the free end of a comb or of at least one row of brushes in the closed position, and at the same time better confines the volume, and at the same time protects the ends of the accessories (combs, brushes, etc.) from being in the closed position. The device is subjected to any excessive and possibly damaging stretching of the comb as it passes along the lock of hair. The comb should not rest against the upper housing until the heating plate is in contact.

According to the invention, the first handle of the first cheek and the second handle of the second cheek each have a width Lp strictly smaller than the maximum width l1 of the first housing. This allows for a convenient grip for hands of any size. The handles are elongated on the longitudinal axis of each housing. The mutually aligned sides of the housing are each in a specific configuration (along the same line) as the corresponding sides of the handle. The asymmetry of the device is also noticeable at the handle.

According to the invention, the outer surfaces of the first housing and the second housing cover at least the treatment area formed by the treatment surface, said outer surfaces being substantially smooth. This allows better sliding of the locks of hair as they are wound around one or both of the housings and should be loosened without changing the shape of the curls formed, shiny surface condition , 0 or 3 Charmilles wire walking (charmilles) type. The roughness Ra of the so-called substantially smooth surface is between 0.2 μm and 2 μm, more specifically between 0.2 μm and 0.5 μm. At least the grip area may be provided on an outer surface of the housing. This gripping area is adapted to limit the conduction of heat in order to provide new positional possibilities without the risk of scalding when the cheek is gripped by the housing rather than by the handle. As an example, the surface of the grip area may be realized with a different material or may have a different surface state than the remainder of the outer surface of each housing.

According to the invention, in cross section, the line defined by the outer peripheries of said first and second casings is a circular curve without any point of inflection. According to a more specific aspect, said lines are not visually flat. This allows to provide a device of reduced volume, capable of forming curls, and thus substantially circular in overall profile. For reasons of these volumes and of the different volumes of the two housings, however, the outer periphery is not circular. According to the invention, the device comprises a fluid container and a vaporization mechanism in fluid communication with the vapor output mechanism and an actuator for controlling the vaporization mechanism. This allows the steam to be controlled in a manner separate from the heating of the treated or straightened surface. The user makes a selection through the actuator.

According to the invention, the evaporation mechanism comprises an electric pump, and the actuator is used to control the electric pump. This allows to control the supply of the evaporation chamber independently of the heating of the treatment surface or straightening surface. Thus, if the user wishes to stop evaporation, he presses the actuator or switch in order to stop the operation of the electric pump, while the heating of the evaporation chamber remains constant and continuous through the actuation of the switch. If the user wants steam again, he actuates the switch which restarts the operation of the electric pump and makes steam immediately available, since the evaporation chamber will remain at the proper temperature during the stop of the pump. The user can choose between an immediate cessation of steam and an immediate intake of steam via this actuator.

Description of drawings

The invention will be better understood by studying the embodiments given in a non-limitative manner and illustrated by the accompanying drawings, in which:

- figure 1 shows a perspective view of a device according to the prior art,

- Figures 2 and 3 show perspective views of the device according to the invention, respectively in an open position and in a closed position;

- Figure 4 shows a transverse sectional view of the housing according to the invention;

- Figure 5 shows a tetragonal view of the side of the aligned housing sides of the device according to the invention,

- Figure 6 shows a view of an alternative embodiment of the device according to the invention,

- Figure 6' shows a sectional view of the isolated base of the device according to this alternative embodiment.

detailed description

For identical or even similar elements shown in several figures, the same reference numerals are used.

As shown in all the figures, including also in FIG. 1 which represents the prior art, the hairdressing appliance 1 comprises a first cheek 2 and a second cheek 3 arranged opposite each other. Each cheek can be functionally broken down into at least two parts: a housing comprising the hair treatment element and a handle for gripping by the user. Each housing is formed from one part. The housing and handle may be a single piece extending from each other. Thus, said first cheek 2 may be formed by a first housing 6 and a first handle 6', and the second cheek 3 may be formed by a second housing 7 and a second handle 7'. The first treatment inner surface 4 is carried by the first cheek 2 , more precisely by the first housing 6 , and the second treatment inner surface 5 is carried by the second cheek 3 , more precisely by the second housing 7 . The two cheeks 2, 3 are connected so as to move between an open position and a closed position in which the treatment inner surfaces 4, 5 grip the lock of hair. The first treatment surface 4 and the second treatment surface 5 of the hair are complementary planar surfaces which, in the closed position of the device, correspond approximately to clamping the lock of hair, thus allowing the lock of hair to slide through it by linear translation. Straighten locks of hair. The two treatment surfaces are substantially symmetrical with respect to the straightening plane when the device is in the closed position. Likewise, the heating elements of each treatment surface are generally symmetrical about the straightening plane when the device is in the closed position.

The first cheek 2 and the second cheek 3 are connected by an articulation of the hinge type, and the maximum opening angle α of the two cheeks is between 5° and 60°, even between 10° and 20°, and Preferably approximately equal to 15°. Furthermore, the device has been shown here in an "open" rest position, but it could be in a "closed" rest position, as shown in patent EP2145557, the cheek being pivotally mounted on the other end , between an open position allowing hair to be inserted between two treatment surfaces and a closed position for contacting hair with the two treatment surfaces, the device comprising a half handle A return mechanism that generates pressure against the treatment surface. The pivot axes of the two cheeks carrying the treatment surface may be arranged at the ends of the cheeks (as shown here) or approximately in the middle of the cheeks to provide a "scissors" type of articulating device.

The material forming the treatment surfaces 4, 5 consists of metal and/or ceramic and/or glass and/or plastic material and/or fiber pieces. At least one of the first housing and the second housing has a single heating element for heating the corresponding treatment surface by contact and for heating the coating by radiation. The treated surface can be raised to a temperature between 130°C and 230°C. The housing and outer handle are a single piece so as to form the cheeks. The material forming the outer part of the housing and even the outer part of the handle may be plastic, for example PBT (polybutylene terephthalate) doped with glass fibres. It is important that the material has a very smooth surface. The material forming the inner part of the housing and even the inner part of the handle may be plastic, for example PET (polyethylene terephthalate) doped with glass fibres.

As shown in FIG. 4 , the device 1 comprises at least a heating mechanism 41 for heating the first treatment surface 4 . According to a particular embodiment, the device 1 also comprises heating means 51 for heating the second treatment surface. The one or more heating means 41, 51 may be heating elements, which may be positive temperature coefficient (PTC) thermistors or ceramic heating elements, which are attached to the treatment surfaces 4, 5 Or arranged inside the element comprising the treatment surface 4,5.

As shown in FIG. 4 , the device 1 includes a fluid evaporation mechanism 80 in an embodiment, and the fluid evaporation mechanism 80 includes an evaporation chamber 81 and a heating mechanism 82 (or heating element or heating element) of the evaporation chamber. The one or more evaporation chambers are realized in aluminium, which may comprise a steam output mechanism 31 which may be formed by one or more steam distribution holes, for example by a row of holes. The one or more evaporation chambers 81 can be directly or indirectly abutted against a contact-fitting heating element 82 . A good pressing of the heating element 82 and thus an optimal operation thereof is achieved by means of, for example, a reed spring which is not shown.

The temperature sensor may preferably be arranged above the fluid inlet in the evaporation chamber. The heating mechanism 82 of the evaporation chamber can be at least one heating element, which can be a thermistor with a positive temperature coefficient (PTC) or a ceramic heating element, and the heating element is attached to one of the walls or arranged on Inside the elements forming the treatment surface, the heating means 82 of the evaporation chamber may be the same as or a separate heating means from the heating means of the treatment surface. The steam distribution mechanism or steam output mechanism 31 may have a set of steam output holes arranged laterally relative to the first treatment surface 4 , preferably slightly recessed relative to the treatment surface 4 . Alternatively or additionally, the steam distribution mechanism has a set of holes arranged on the treatment surface. The steam output flow rate is approximately between 3g/min and 4g/min, more precisely equal to approximately 3.5g/min. The internal structure of the device and especially the evaporation mechanism are fully described in the applicant's patent EP2449909.

2 , 3 and 4 , the hairdressing appliance 1 for curling and straightening hair has a first housing 6 whose maximum width l1 is less than or equal to 90% of the maximum width l2 of the second housing 7 . More specifically, the maximum width 11 of the first housing 6 is between 75% and 85% of the maximum width 12 of the second housing 7 , and preferably equal to 80% of the maximum width 12 of the second housing 7 . These maximum widths are substantially constant across the shells, except at the ends of each shell, which is why the range of values is given. In addition, FIG. 4 is a cross-sectional view approximately in the middle of the housing.

In the closed position of the cheeks 2 , 3 , as shown in FIGS. 3 and 4 , the longitudinally sectioned midplane or profile plane P1 of the first housing 6 is parallel to and separated from the longitudinally sectioned midplane P2 of the second housing 7 . The distance between the two mid-planes or shape planes P1, P2 is between 5% and 20% of the width of the maximum width l2 of the second shell 7 and is preferably equal to the maximum width of the second shell 7 10% of the width of l2. Therefore, the bodies of the two housings are asymmetrical but staggered along the longitudinal mid-plane. The perimeter of the device is clearly asymmetrical and is rationally used to reduce the volume of the internal elements in order to facilitate the use of the straightener for forming curls of different sizes. As shown in Fig. 3 and Fig. 4, when the cheeks 2, 3 are in the closed position, one longitudinal side 61 of the two longitudinal sides of the first housing 6 and the second housing 7 are arranged on the side of the second housing 7. The longitudinal edges 71 on the same side are aligned. The longitudinal mid-plane P4 and the longitudinal mid-plane P5 are respectively the respective mid-planes of the treated inner surface 4 and the treated inner surface 5 . In the cross-sectional view shown in FIG. 4 , the plane P4 is parallel to the planes of P1 and P2 and staggered outward relative to the planes of P1 and P2 . The planes P4, P1 and P2 are parallel to each other and are each orthogonal to the straightening plane P1. Furthermore, the first shell 6 and the second shell 7 in this example are also asymmetrical with respect to their respective mid-planes (P1, P2) of longitudinal section.

As shown, said process inner surfaces 4, 5 are flat, identical, opposite each other in the closed position, and are disposed in their respective housings 6, 7 at said aligned sides 61, 71 side and near. An alignment line is shown in FIG. 4 , which is tangent to the aligned sides 61 and 71 of the housing or cover. This straight line is perpendicular to the straightening plane P1. The peripheral curves li6, and li7 of the shell 6 and shell 7 form arcs of circles which are substantially continuous at the aligned sides 61 and 71 and thus have a value of about 15mm.

Each of said two longitudinal sides 61 , 71 is equipped in its interior with a baffle 62 , 72 protruding towards the interior of the device and preferably in contact with said housing 6 , 7 of the same material (eg PBT plastic). As shown in FIG. 5, these baffles are arranged in the same manner on the two housings. These baffles allow the application of pressure in order to produce a so-called "tape" effect on the hair, which slides on one of these baffles during the straightening action. This is the first way of forming curls towards the inside or outside depending on the baffle used, which is arranged below or above the straightener used.

As shown in FIGS. 2 and 4 , the width l of each treatment inner surface 4 , 5 is between 40% and 60% of the maximum width l1 of the first housing 6 , preferably between Between 40% and 50% of the maximum width l1 , even approximately equal to 45% of the maximum width l1 of the first casing 6 .

As shown in Figure 4, here are non-limiting examples of the dimensions of a device according to the invention:

l1: the maximum width of the first shell 6 = 45mm

l2: the maximum width of the second shell 7 = 52mm

h1: the maximum height of the first housing 6 = 23mm

h2: the maximum height of the second housing 7 = 32mm

l: the width of each treatment inner surface 4, 5 = 25mm

r: Radius of curvature formed by the periphery of each side of the first housing 6: about 14 mm.

The straightener according to the invention has its second cheek 3 comprising a steam output mechanism 31 oriented towards the first housing 6 and adjacent to the second treatment inner surface 5 . Precisely, this means that the treatment of the hair by the first cheek 2 comprises only a straightening board, while the treatment of the hair by the second cheek has a straightening board and at least one additional hair-cutting function. Said at least one additional haircutting function may be one or more functions selected among the following functions: spraying, combing, treatment with a brush, ionization, application of tension through a baffle realized by a silicone-type material, by being actuated e.g. The baffle, which performs an oscillating motion, exerts the tension. The invention thus allows to provide a compact hairdressing appliance which, besides the straightening function, has an additional haircutting function and which has the ability to form curls of at least two different sizes, or even three different sizes. For this purpose, the additional hair cutting function is embedded in the widest of the two housings. The present invention relates to minimizing the width of the housing of cheeks with only a straightening function, without this width reduction causing malfunctions in terms of safety and effectiveness of the complete hairdressing appliance. Therefore, the formation of the curls and the "release" of the curls has additional constraints on the size and shape of the housing.

In the case where the steam function is embedded on the second cheek 3, it is important that the first housing 6 has a baffle 21 formed in its inner periphery, which in the closed position is arranged approximately on the second cheek 3. Opposite to the steam output mechanism 31 of the housing 7 . This deflector makes it possible to protect the scalp from any jets of unwanted steam or condensed hot water droplets. This baffle 21 allows steam to be directed towards the hair, which will be passed through twice by the steam. The deflector according to the prior art shown in FIG. 1 is wide, it is flat and covers the full dimension of the opposite cheek. The dimensions of the baffle 21 of the invention shown in FIG. 4 were rationally chosen by the inventors in order to preserve this function: the width dimension is reduced as much as possible so that it only covers the steam outlet holes 31 . In addition, the shape of this baffle is also modified: the shape is no longer flat as shown in FIG. 1 , but the inner periphery of the first housing 6 is sloped towards a high place in order to act as a baffle.

As shown in FIG. 4 , the second housing 7 includes a comb or brush 32 oriented towards the first housing 6 and adjacent to the second process inner surface 5 . In this case, the first housing 6 may have a groove 22 formed at the inner periphery of the first housing 6 and arranged approximately in the closed position of the comb or brush 32 of the second housing 7 . opposite. In this way, the comb separates well the entire thickness of the lock of hair without the combing function taking up too much space.

As shown in FIGS. 2 and 3 , the first handle 6 ′ of the first cheek 2 and the second handle 7 ′ of the second cheek 3 each have a width lp which is strictly smaller than the width lp of the first housing 6 . The maximum width l1 is therefore strictly smaller than the smallest of the widths on the two housings 6 and 7 . Thus, the aligned sides of housing 6 and housing 7 are in these cases aligned with the sides of the same side of the handle so as to form a coincident alignment line L _ali as shown in FIG. 2 . In fact, this alignment improves the ergonomics of use of the device, which can be operated by hands of any size.

The outer surfaces of the first housing 6 and the second housing 7 are substantially smooth. The coefficient of friction is measured by measurement of the roughness of the shell at the area for the wrapping of the curls as follows:

a) Ra is measured on the upper "flat" or horizontally tangential part of the shell 6 shown in Figure 4:

In the longitudinal direction: 0.24; 0.23; 0.22 μm, with an average of 0.23 μm,

In the transverse direction: 0.22; 0.44; 0.27 μm, with an average of 0.31 μm,

b) Ra is measured on the side portions on the left and right sides of the housing 6 shown in Figure 4:

In the longitudinal direction: 0.24; 0.23; 0.43; 1.63 μm, or 0.24 μm on average, with local peaks up to 1.63 μm;

The profilometer used is Mitutoyo brand, n° JP1010. Statistical standard Ra is statistical and is the arithmetic mean difference with respect to the mean line.

This allows for easy winding and "unmolding" of the curls without damaging the lock.

In the cross section shown in Fig. 4, the line defined by the outer peripheries of said first and second shells 6, 7 is a circular curve without any point of inflection. Much of the work involved better defining the perimeter of the shell as round and as smooth as possible, with no points of inflection, based on the volume of internal elements and the safety and effectiveness measures set by the equipment. Note that in cross-section, there are no flat lines visible to the naked eye. At the first housing, the housing has a rounded arc on the sides which is smaller than the rounded arc on the sides of the second housing. The radius of curvature of each side of the first housing 6 is approximately the same. This allows curls to be formed that are as round as possible. This also allows to avoid having corners on the device that are vulnerable to impact. In the cross-sectional view, the outer periphery of the first casing 6 is almost the reduction of the outer periphery of the second casing 7 in the cross section, and the reduction ratio is approximately equal to 0.8.

According to the invention, the apparatus comprises a fluid container 83 and a vaporizing mechanism 80 in fluid communication with the vapor output mechanism 31 and an actuator 85 for controlling the vaporizing mechanism 80 . More precisely, the evaporation mechanism 80 includes an electric pump 84 and the actuator 85 is used to control the electric pump 84 . This allows to control the feeding of the evaporation chamber 81 independently of the heating of the treatment or straightening surfaces 4 , 5 . The user makes a selection through this actuator 85 . The user directly controls the actuator 85 if he wishes to achieve curling with or without steam. The electric pump may be a peristaltic pump, the actuator 85 controlling the motor of the peristaltic pump.

Figures 6 and 6' show an alternative embodiment of the invention: the device has a two-part arrangement: the above-described straightening jaws according to the invention and a separate base. This arrangement is described in the applicant's patent EP2449910. Thus, the device 1 for styling hair comprises a base 1000 comprising a (main) fluid container 83, a portable unit 100 comprising a fluid evaporation mechanism 80, a steam distribution mechanism towards the hair 31. The device 1 further comprises a cable 121 comprising at least one duct for passage of fluid and arranged between the (main) fluid container 83 and the evaporation mechanism 80, the portable unit 100 comprising at least a second A treatment surface 4 , said first treatment surface 4 is intended to be in contact with hair, and said fluid vaporization mechanism 80 is provided exclusively in said portable unit 100 . The base is detached from the portable unit and it can be placed on a work surface. The base includes a base 1001 for housing the portable unit 100 or the handpiece when not in use, and a cover 2030 for introducing fluid that is completely removable for use in Replace the demineralizer 2000 (filter) if necessary. A portion of the base can be provided to be transparent so that the user can be visually alerted that the ion exchange resin has changed color as it is no longer effective. The base includes a demineralization mechanism 2000 that allows reducing the scale content of the fluid introduced into the base. These demineralization mechanisms 2000 are arranged between an intermediate container containing the “raw” fluid and the container 83 containing the “filtered” fluid to be delivered to the hairdressing appliance 1 .

As shown in FIG. 6', the base 1000 includes a demineralization mechanism 2000 and a fluid container 83, and the fluid is conveyed by a cable 121 including a fluid conduit 121' and an electrical wire 121". From the container of the base toward The fluid delivery mechanism for delivering fluid to the evaporation chamber of the portable unit 100 comprises an electric pump 84 , here a peristaltic pump whose motor 84 ′ is controlled by an actuator 85 provided here on the base 1000 .

Alternatively, the device may have the configuration shown in FIG. 2 comprising a single device with an integrated fluid container and an embedded vaporization actuator 85 .

Description of the working of the invention :

In operation, the user will connect the power supply of the device, the heating element of PTC type or the heating element of ceramic type starts to heat the surface intended to be in contact with the hair, and the other heating element (or the same heating element) starts to heat the evaporation mechanism 80 (When it comes to the vaporization function), the user holds the device and applies it so as to pinch the lock of hair to be treated.

Since the two housings are asymmetrical, the arrangement of the device on the lock of hair is important: the user should arrange and close the straightener so that the two aligned sides are close to the scalp, the orientation is shown in FIG. 2 . The user can then perform a traditional straightening step by sliding the hair in a straight line along the lock of hair in the direction shown by the arrow in the first housing of FIGS. 2 and 3 . 6 is shown.

When the user wishes to create curls of small size, the user proceeds as follows: the device 1 is in the open position, the user winds the lock of hair around the first housing 6, after which the straightener is closed as close as possible to the scalp, Keep the straightener stationary for a few seconds and then slide the device 1 towards the free end of the lock of hair in order to "demould" the lock of hair. This allows curls of small size to be formed.

When the user wishes to create larger sized curls, the user proceeds as follows: once the device is closed as close to the scalp as possible, the device is slid along the entire lock to the end of the lock and the user holds the device in the closed position And rotating the device around itself so as to wind the lock of hair around the two housings 6, 7 in the closed position up to the scalp, after which, after a few seconds, the user unrolls the lock of hair. This allows for shiny, smooth curls with more dimension.

Each static step can be held for a few seconds, or even a minute or two, for the curls to form properly. The duration of the cessation varies inter alia according to the temperature of the device and according to the form of the hair lock being treated.

Advantages of the present invention :

The present invention brings about a number of advantages, among which it provides a hair styling device, in particular a straightener:

-with possible steam function, not bulky and capable of forming regular curls,

-with possible steam function, not bulky and able to create curls with simple application,

- with a possible steam function, capable of forming curls with at least two different sizes (or diameters), or even at least three different sizes, by simple use,

- with possible steam function, capable of forming curls at reduced manufacturing costs of this unique device,

- With possible steam function, capable of forming curls and with reduced weight,

- With possible steam function, able to create curls and easy to handle, especially at the two handles or at the grip area, without touching the end of the treatment side of the device, which can sometimes be hot ,

- with a possible steam function capable of controlling in a reliable manner at least one of the operating parameters of the steam,

- with steam function, able to ensure a continuous and even constant steam flow corresponding to the control preset value,

- with a possible steam function, the device is robust, especially robust and impact-resistant, it is operationally durable and ensures good aging behavior with respect to e.g. mechanical deformations,

- work is efficient and/or fast with possible steam function,

- with a possible steam function, the device allows a light and convenient use,

- a possible steam function with a disposable additional element of simple and inexpensive design,

- with a possible steam function, said device is safe and does not burn the user's scalp or hands,

- have an increased duration of product life and reduce the impact of the device on the environment,

- have a safe and reliable work, allowing to ensure high quality hair treatment,

- work strong, durable and ensure good aging properties;

- work efficiently and/or quickly;

- working seal;

- the device works securely in whatever position,

- Allows light and convenient use,

- has a simplified mechanism,

- Can be industrialized at low cost,

- have less unwanted friction,

- in order to drive an element no longer subject to mechanical deformation of the housing,

- An excess force is no longer ensured relative to the force exerted by the user for closing or opening.

Of course, the invention is by no means limited to the shown and described embodiments, given by way of example only. Modifications, in particular with respect to the composition of different elements or by replacement of technical equivalents, are possible without departing from the scope of protection of the invention.

Claims (16)

1. a kind of for curling and the hairdressing apparatus (1) that stretch, the hairdressing apparatus (1) include：

- the first cheek and the second cheek (2,3), first cheek and the second cheek (2, it is 3) long and pivot toward each other Turn a work it is dynamic,

With the first housing (6), first housing (6) carries the first flat process inner surface to-first cheek (2) (4), and

- the second cheek (3) includes flat second processing inner surface (5) with the second housing (7), second housing (7),

- the inner surface (4,5) for clamping hair tresses,

- at least one heating element heater (41,51), its be used for heat at least one process inner surface (4,5),

The Breadth Maximum l1 of first housing (6) is less than or equal to the 90% of the Breadth Maximum l2 of second housing (7),

And at least one of first housing (6) or second housing (7) housing is relative to first housing (6) Or the respective longitudinally cutting midplane (P1, P2) of second housing (7) be it is asymmetric,

It is characterized in that：

Second cheek (3) includes the steam output mechanism (31) towards first housing (6) orientation, and the steam Output mechanism (31) is adjacent with the second processing inner surface (5).

2. the equipment according to a upper claim, it is characterised in that the Breadth Maximum l1 of first housing (6) is between institute State the second housing (7) Breadth Maximum l2 75% and 85% between, and the maximum of preferably equivalent to described second housing (7) is wide The 80% of degree.

3. the equipment according to any one of the claims, it is characterised in that the cheek (2, close stance 3) Put, the longitudinally cutting midplane (P1) of first housing (6) is put down with the longitudinally cutting midplane (P2) of second housing (7) Go and separate.

4. the equipment according to a upper claim, it is characterised in that the distance between described two midplanes (P1, P2) are situated between Between the 5% and 20% of the value of the Breadth Maximum l2 of second housing (7), and preferably equivalent to described second housing (7) Breadth Maximum l2 10%.

5. the equipment according to any one of the claims, it is characterised in that the cheek (2, close stance 3) Put, a longitudinal edge (61) in two longitudinal edges of first housing (6) be arranged in the same of second housing (7) Longitudinal edge (71) alignment of second housing (7) on side.

6. the equipment according to a upper claim, it is characterised in that and the process inner surface (4, it is 5) flat, identical And in closed position be it is relative to each other, and the process inner surface (4,5) be arranged in align the side (61, 71) the respective housing of its adjacent (6,7) in.

7. the equipment according to any one of claim 5 and 6, it is characterised in that described two longitudinal edges (61,71) in Longitudinally in each side equipped with least one towards the housing (6, baffle plate that inside 7) projects (62,72).

8. the equipment according to any one of the claims, it is characterised in that each process inner surface (4, width 5) L is between the 40% and 60% of the Breadth Maximum l1 of first housing (6).

9. the equipment according to any one of the claims, it is characterised in that first housing (6) is with deflector (21), the deflector (21) is formed in the inner rim of first housing (6), and is disposed generally on institute in closed position State the opposite of the steam output mechanism (31) of the second housing (7).

10. the equipment according to any one of the claims, it is characterised in that second housing (7) including comb or Brush (32), the comb or brush (32) are oriented and adjacent with the second processing inner surface (5) towards first housing (6).

11. equipment according to a upper claim, it is characterised in that first housing (6) is with its inner circumference shape Into groove (22), and the groove (22) closed position be disposed generally on the comb of second housing (7) or brush (32) Opposite.

12. equipment according to any one of the claims, it is characterised in that first cheek (2) it is first-hand The second handle (7 ') of handle (6 ') and second cheek (3) each have width (lp), the width (lp) less stringent than The Breadth Maximum (l1) of first housing (6).

13. equipment according to any one of the claims, it is characterised in that first housing (6) and described The outer surface of two housings (7) is about smooth.

14. equipment according to any one of the claims, it is characterised in that in cross-section, by first He (6, the line of neighboring restriction 7) is the circular curve without any flex point to second housing.

15. equipment according to any one of the claims, it is characterised in that the equipment includes fluid container (83) With evaporation device (80) and actuator (85), the evaporation device (80) is in fluid communication with the steam output mechanism (31), institute Actuator (85) is stated for controlling the evaporation device (80).

16. equipment according to a upper claim, it is characterised in that the evaporation device (80) including electric pump (84), and And the actuator (85) is for controlling the electric pump (84).