Multi-mode blow head hair styling apparatus with air sealing inner walls

Description

[0001] The present invention relates to the general technical field of hairdressing appliances, for example for home use, and more specifically to the field of portable hairdressing appliances designed to blow a flow of air in order to dry and / or facilitate the shaping of hair.

[0002] In the field of hair styling tools, devices designed to blow air onto the hair using different blowing modes are already available, giving them a multifunctional character and allowing for various hair drying and / or styling techniques with a single appliance. For example, there are handheld hair dryers, consisting of a handle and a blower head with an air outlet that directs a forced stream of hot or cold air onto the user's hair. The forced airflow follows a single path within the device until it exits through this air outlet.To modify the airflow pattern of these hair dryers, additional accessories, either detachable or fixed, are generally provided at the air outlet. These accessories typically modify the effective airflow cross-section and / or the direction of the airflow, thus defining a variety of different airflow patterns adapted to specific hair drying and / or styling techniques. While these well-known hair dryers are generally satisfactory, they do have some drawbacks. In particular, switching between airflow patterns requires the user to assemble / disassemble accessories, or to manipulate a pre-mounted accessory at the air outlet. This can sometimes be tedious, which detracts from the ease of use and ergonomics of the device.There is also a significant risk of burns when handling the accessory(ies), as well as a possible risk of losing the accessories, when they are not simply stored out of reach and inaccessible to the user when the latter wishes to use them.

[0003] To address these issues, a new portable hair styling device has recently been proposed. It comprises a hand-held handle and a blower head connected to the handle. The blower head has first and second air outlets for expelling air from the device, typically using different first and second blowing modes. The device also includes a blower module to initiate this airflow, as well as an air direction mechanism arranged inside the blower head. The blower head and the air direction mechanism are mounted to move relative to each other between a first air direction configuration, in which the air direction mechanism directs the initiated airflow to the first air outlet, and a second air direction configuration, in which the air direction mechanism directs the initiated airflow to the second air outlet.

[0004] While such a hair styling device has a number of advantages in relation to the aforementioned problems, it has been observed that such a known device can still be improved, particularly in terms of the efficiency of its aerodynamic design, the latter having a significant impact on the performance of the device and on the quality of the result of the hair styling operations carried out with the device, as well as on the safety of use of the device.

[0005] Document WO2022 / 263775 discloses a portable hair styling device according to the preamble of claim 1.

[0006] The objects assigned to the invention therefore aim to propose a new multifunctional portable hairdressing device which is of a particularly efficient aerodynamic design, while being particularly practical to use.

[0007] The objects assigned to the invention therefore aim to provide a new multifunctional portable hairdressing device whose use is particularly safe.

[0008] Another object of the invention is to propose a new portable hairdressing device of particularly simple and compact construction.

[0009] Another object of the invention is to propose a new portable hairdressing device that is particularly robust and reliable.

[0010] Another object of the invention aims to provide a new portable hair styling device enabling a user to easily and efficiently perform a plurality of distinct operations, without requiring the use of an external complementary hair styling device.

[0011] Another object of the invention aims to provide a new portable multifunctional hairdressing device that is particularly ergonomic, easy and safe to use, especially for a user without any particular professional hairdressing skills.

[0012] The objects assigned to the invention are reached using a portable hair styling device comprising a hand grip and a blower head connected to the handle, the blower head comprising a housing and having first and second air blower outlets for blowing an airflow out of the hair styling appliance, a blower module for producing said airflow, an air direction member comprising an air inlet in aerodynamic connection with the blower module and through which the airflow enters the air direction member in a mean inlet direction, the air direction member being movablely mounted inside the housing of the blower head at least between a first air direction configuration in which the air direction member directs the airflow towards the first air blower outlet, and a second air direction configuration in which the air direction member directs the airflow towards the second air blower outlet, a control system,which is mechanically connected to the air direction member to control each passage of the air direction member from one to the other of said first and second air direction configurations, the blower head extending along a mean extension axis between a lower end at which the blower head is connected to the wand and a free upper end, the blower head housing comprising a first portion, which extends along said mean extension axis from said lower end towards said free upper end and in which the air direction member is arranged, and a second portion which extends said first portion along said mean extension axis and defines said free upper end, and in which the control system is arranged, the blower head housing comprising an internal face which carries at least one first peripheral wall,the control system comprising a portion which is arranged stationary relative to said housing and at a distance from said free upper end of the blower head, and which carries at least a second peripheral wall, said first peripheral wall being arranged in contact with said second peripheral wall and overlapping the latter to oppose the passage of air from said airflow from the first portion through said second portion along an average direction parallel to said average direction of inlet of the airflow.

[0013] Other features and advantages of the invention will become apparent and will be described in more detail in the following description, with reference to the attached drawings, which are given solely as illustrative and non-limiting examples, including: there figure 1illustrates, in perspective view, an embodiment of a hair styling device according to the invention; the figure 2 illustrates, from a side view, the device of the figure 1 ; there figure 3 illustrates, according to a front view, one side of the device of Figures 1 And 2 , which is here in a first blowing mode (the "blower brush" mode) corresponding to the first air direction configuration of the air direction unit; the figure 4 illustrates, from a side view, the apparatus of the figures 1 to 3 A button on the device's control system is shown here in the pressed position, whereas it is in the released position at figures 1 to 3 ; there figure 5 illustrates, from a front view, a second side of the device figures 1 to 4 , which is here in a second blowing mode (the "hair dryer" mode), corresponding to the second air direction configuration; the figure 6illustrated schematically, according to a sagittal section view II (see figure 3 ), the device of figures 1 to 5 in its first blowing mode; the figure 7 is a truncated schematic view in sagittal section II, the apparatus of figures 1 to 6 in its first blowing mode. Particular areas are enlarged to highlight certain design features of the hair styling appliance; the figure 8 illustrated schematically, according to a sagittal section view II (see figure 3 ), the device of figures 1 to 7 in its second blowing mode; the figure 9 illustrated schematically, according to a truncated frontal section view II-II (see figure 2 ), the device of figures 1 to 8 in its first blowing mode; the Figure 10 is a truncated schematic frontal view II-II, the apparatus of figures 1 to 9in its first blowing mode. Particular areas are enlarged to highlight certain design features of the hair styling appliance; the figure 11 illustrates, according to a frontal cross-sectional view II-II, the apparatus of the figures 1 to 10 with the button in the pressed position; the figure 12 illustrated, according to a frontal sectional view II'-II' (see figure 2 ), the device of figures 1 to 11 in its second blowing mode; the figure 13 illustrates, in perspective view, an internal piping device and the stationary part of the hair styling appliance's control system figures 1 to 12 ; there figure 14 illustrates, according to another perspective view, an internal piping device and the stationary part of the hair styling device's control system figures 1 to 12 ; there figure 15 illustrates, according to a perspective view, a first isolated casing element forming a housing for the hair styling device figures 1 to 12, combined with a mechanical hair engagement element; the figure 16 illustrates, according to a perspective view, a second isolated casing element forming a housing for the hair styling device figures 1 to 12 , combined with a mechanical hair engagement element. This second covering element complements the first covering element of the figure 15 and these together form the casing of the hair styling appliance, and in particular the casing of its blow-drying head; the figure 17 illustrated, according to a truncated frontal cross-sectional view II-II, a detail of the device figures 1 to 12 , the button being in the released position; the figure 18 illustrated, according to a truncated frontal cross-sectional view II-II, a detail of the device figures 1 to 12 with the button in the pressed position; the figure 19 illustrates schematically, according to a top view of the device figures 1 to 12This is an advantageous additional design feature of the device. On the left, the device is in its first blowing mode, with the control mechanism button in the released position. On the right, the device is in its second blowing mode, with the button also in the released position. In the center, the device button is in the pressed position (transitional mode).

[0014] The hair styling device 1 according to the invention, a non-limiting embodiment of which is illustrated by example in the figures, is a portable hair styling device, designed to be grasped and manipulated by hand. IlThis refers to a hair styling appliance 1 preferably intended for use in a domestic setting by a user (male or female) without any particular professional skills in hairstyling, i.e., in terms of drying, styling, or shaping hair. Preferably, the hair styling appliance 1 is designed for the user to use on themselves, i.e., on their own hair. However, it is perfectly conceivable that the hair styling appliance 1 may be designed for use by the user on the hair of another person.

[0015] The hair styling appliance 1 includes means for generating an airflow F which, as will be understood from the following, are designed and configured to generate said airflow F according to at least two different blowing modes, namely at least a first blowing mode and a second blowing mode, which is therefore different from said first blowing mode. IlThis is therefore an advantageously "multimode" or "multifunctional" device, being designed and configured to blow an airflow F towards the hair in at least two different blowing modes, which can be alternately selected by the user. By "different blowing modes," we preferably mean blowing modes in which the hair styling appliance 1 blows an airflow that differs, for example, in its shape, direction, and / or intensity, in order to allow different operations to be carried out on the hair, depending on the blowing mode chosen, such as performing a hair drying operation or a hair styling operation.

[0016] The hair styling appliance 1 comprises at least one first air outlet 2 for blowing the airflow F out of the hair styling appliance 1, for example in a first of said blowing modes, and a second air outlet 3 for blowing the airflow F out of the hair styling appliance 1, for example in a second of said blowing modes. Said first and second air outlets 2, 3 are advantageously separate from each other, preferably distant from each other, and preferably opposite each other. As in the embodiment illustrated in the figures, the hair styling device 1 advantageously has a first face 4, which carries the first air blowing outlet 2 and a second face 5 which carries the second air blowing outlet 3. The first and second faces 4, 5 constitute different, and preferably opposite, faces of the hair styling device 1.Advantageously, the first and second air outlets 2, 3 exist simultaneously (i.e., they are both permanently present on the hair styling device 1), and not alternately. Typically, the hair styling device 1 comprises a housing 6, for example made of plastic, an external face of which defines at least a portion of the first and second faces 4, 5 of the hair styling device 1. Said housing 6 has an external surface (defined by said external face) which defines at least a portion of an external surface of the hair styling device 1.

[0017] Preferably, these blowing modes correspond to different paths of the airflow F within the hair styling appliance 1. The hair styling appliance 1 is therefore preferably designed and configured so that the airflow F follows different (aerodynamic) paths within the hair styling appliance 1 depending on the blowing mode selected by the user. Thus, the airflow F advantageously follows at least one first path within the hair styling appliance 1 in the first blowing mode, until it is blown out of the hair styling appliance 1 via the first air blowing outlet 2 ( figure 6). In the second blowing mode, the airflow F advantageously follows a different path within the hair styling appliance 1, i.e., a path that differs at least in part from the path(s) taken by the airflow F in the first blowing mode, until it is blown out of the hair styling appliance 1 via the second air blowing outlet 3 ( figure 7The implementation of such different airflow paths advantageously allows for the definition of very different blowing modes, depending in particular on the chosen configuration and shape of the first and second air blowing outlets 2, 3, their relative arrangement, etc. In particular, this makes it possible to plan blowing modes in which the airflow F is blown out of the hair styling device 1 in different, possibly opposite, directions, and for example through air blowing outlets 2, 3 that are far apart from each other.

[0018] As in the embodiment illustrated in the figures, the first blowing mode can advantageously correspond to an operating mode of the hair styling appliance 1 in "blowing brush" mode ( figures 3 , 6 , 7 And 9in particular), while the second blowing mode can advantageously correspond to a hair styling appliance 1 operating mode in "hair dryer" mode ( Figures 5 , 8 And 12 in particular). Obviously, the invention is not limited to such specific blowing modes, and other blowing modes may be considered depending on the intended uses of the hair styling appliance 1 for drying and / or styling hair. Furthermore, the number of different blowing modes is not, in practice, limited to two. Moreover, a single blowing mode may correspond to a plurality of different paths of the airflow F inside the hair styling appliance 1.

[0019] The hair styling appliance 1 includes a handle 7 (or grip) for manual handling, intended to be grasped manually by the user to operate the hair styling appliance 1. Advantageously defined by a portion of the housing 6 of the hair styling appliance 1, the handle 7 typically extends between a first end 8 and a second opposite end 9, preferably longitudinally along an axis AA' of average extension. The handle 7 advantageously has a slender, elongated shape so that it can be grasped fully by an adult user. The hair styling appliance 1 further includes a blower head 10 for blowing the air stream F out of the hair styling appliance 1 towards the hair.Connected to the handle 7, the blower head 10 carries said first and second air blower outlets 2, 3, so that the airflow F is advantageously intended to be blown out of the hair styling appliance 1 towards the hair via the blower head 10. Said blower head 10 preferably has at least one first face, which advantageously defines or at least contributes to defining said first face 4 of the hair styling appliance 1, and which carries the first air blower outlet 2. Said blower head 10 preferably also has a second face, which advantageously defines or at least contributes to defining said second face 5 of the hair styling appliance 1, and which carries the second air blower outlet 3.

[0020] As such, the blow-dry head 10 includes a housing 6A, which advantageously forms part of the housing 6 of the hair styling appliance 1, so that said housing 6 advantageously includes a part defining the handle 7 and another part which forms, which defines, the housing 6A of the blow-dry head 10. Typically, said housing 6A can be formed of one or more casing pieces, assembled together, and defines an internal space, in which are housed internal components of the blow-dry head 10 of the hair styling appliance 1, in particular as the latter will be described below. The blow head 10 extends along an axis BB' of average extension, between a lower end (first end) at which the blow head 10 is connected to the handle 7, and thus preferably extends the handle 7 beyond the first end 8 of the latter, and an opposite free upper end (second end).Depending on the shape and dimensions of the blower head 10, said average extension axis BB' can constitute a longitudinal extension axis of the blower head 10. As in the embodiment illustrated in the figures, the average extension axis BB' of the blower head 10 is advantageously parallel or collinear (coinciding) with said average longitudinal extension axis AA' of the handle 7. The hair styling device 1 then advantageously extends, in general, along an average extension direction, which is parallel or collinear with said average longitudinal extension axis AA' of the handle 7 and said average extension axis BB' of the blower head 10.

[0021] As in the embodiment illustrated in the figures, the first blowing mode advantageously corresponding to an operating mode of the hair styling appliance 1 in "blowing brush" mode, the blowing head 10 typically includes a mechanical hair engagement element 11, capable of mechanically interacting with the user's hair, particularly for brushing, styling, and / or combing it. Advantageously located on the first face of the blowing head 10 (which defines, or helps to define, said first face 4 of the hair styling appliance 1), which also carries the first air blowing outlet 2, the mechanical hair engagement element 11 may comprise a plurality of rows or bars of bristles and / or brush bristles.Preferably, as in the embodiment illustrated in the figures, the first air outlet 2 comprises a plurality of air outlet orifices, i.e., a plurality of air outlet portions, which air outlets are arranged between prongs or brush bristles comprising the mechanical engagement element 11 of the hair. For example, each of these air outlet orifices may be formed by a slot (straight or curved). Thus, the airflow F can be optimally directed towards the hair when the hair is in contact with the mechanical engagement element 11 of the hair during a styling operation. Preferably, said first air outlet 2 extends longitudinally along the average extension axis BB' of the blower head 10.For example, said first air blow outlet 2 may then comprise a plurality of air blow outlets, each in the form of a slot, arranged in a stepped manner along the average extension axis BB' of the blow head 10 (. figure 3Respectively, the second blowing mode advantageously corresponding to an operating mode of the hair styling appliance 1 in "hair dryer" mode, the second air blowing outlet 3 preferably has a single, preferably continuous, air blowing opening extending longitudinally along the average extension axis BB' of the blowing head 10. The second air blowing outlet 3 thus has a generally oblong, elongated opening, as illustrated in the figures, to blow the airflow F in the form of an air blade. Alternatively, the second air blowing outlet 3 could, for example, have a generally circular opening to blow the airflow F in a substantially cylindrical or frustoconical shape.Preferably, the second air blowing outlet 3 is defined by a nozzle 12, for example fixed (non-removable) or on the contrary removable (detachable), at least a portion of which extends outward from a surface of said second face of the blowing head 10, typically outward from the external surface of a housing 6A of the blowing head 10. Thus, the second air blowing outlet 3 is advantageously easily identifiable by the user.

[0022] The hair styling appliance 1 includes a blower module 13 (or "motor-fan unit"), typically included in the aforementioned means for generating the airflow F, to produce the airflow F, i.e.to initiate said airflow F from ambient air in the environment of the hair styling appliance 1. Preferably, the blower module 13 is integrated within the hair styling appliance 1 itself. The hair styling appliance 1 is advantageously provided with an air inlet 14, through which ambient air can be drawn by the blower module 13 for blowing towards the hair. The blower module 13, which typically includes at least one fan driven by an electric motor, can advantageously be arranged within the blower head 10 or within the handle 7, or be assembled to the handle 7 at its second end 9. More preferably, however, the wind tunnel module 13 is assembled to the handle 7 at the level of said second end 9 of the latter, so that the wind tunnel module 13 advantageously extends the handle 7 beyond the second end 9 of the latter.Advantageously, the blower head 10 is connected to the handle 7 at the first end 8 of the latter. In the case where the blower module 13 is thus arranged within the handle 7 or, more preferably, is assembled to the handle 7 at the second end 9 of the latter, the hair styling device 1 advantageously includes a guide channel 15 (or (“guide tube”) arranged at least partly inside the handle 7 to guide, channel, the airflow F initiated by the blower module 13 to the blower head 10. As in the embodiment illustrated in the figures, the guide channel 15 can advantageously be a single channel, so that it defines a common portion of the different paths taken by the airflow F within the hair styling device 1 according to the different blowing modes.Alternatively, however, several separate guide channels could be implemented, at the expense of the simplicity of design and manufacture of the hairdressing appliance 1. Advantageously, the means for generating the airflow F according to at least two different blowing modes thus include said guide channel 15.

[0023] The blow-dry head 10 can be designed to be removably connected to the handle 7, allowing the user to separate it from the handle 7, for example, to clean or replace it. Alternatively, as in the embodiment shown in the figures, the blow-dry head 10 is designed to remain permanently connected to the handle 7 and is therefore not intended (under normal use) to be detached from the handle 7 by the user. This simplifies both the design and the use of the hair styling appliance 1.

[0024] Preferably, the hair styling device 1 also includes a heating element for raising the temperature of the airflow F produced by the blower module 13. Typically integrated within the hair styling device 1, the heating element is advantageously arranged to be interposed in the airflow F initiated by the blower module 13. As in the embodiment illustrated in the figures, the heating element is advantageously positioned inside the guide channel 15 arranged in the handle 7. The heating element is typically an electric heating element, comprising a heating resistor formed of an electrically conductive wire (not shown) wound around an insulating core 16. Alternatively, the heating element could be housed in the blower head 10, although this would reduce the compactness of the latter.Advantageously, the hair styling appliance 1 includes means for the user to manually control and / or adjust the electrical operation of the hair styling appliance 1, and in particular the blower module 13 and / or the heating element. These are adjustment means, for example, of the toggle switch, push-button type and / or the slide or dial type, as illustrated in the figures, which the user can directly operate to electrically switch the hair styling appliance 1 on / off and to change the rotational speed of the blower module 13's fan, and therefore the speed / flow rate of the airflow F blown by the hair styling appliance 1, and / or the heating temperature of the heating element.Such manual control / adjustment means 17 can be positioned, for example, on the handle 7 or on the blower module 13, when the latter is assembled to the second end 9 of the handle 7 as in the example illustrated in the figures. The hair styling appliance 1 may also optionally include a hot / cold air switch (not shown), for example arranged on the handle 7, preferably at its first end 8, to control the switching on and / or off of the heating element. Advantageously constituting a portable power device, the hair styling appliance 1 is preferably designed to be electrically powered via a mains supply, using a power cord fitted at one free end with a plug (not shown).

[0025] The hair styling unit 1 includes an air direction device 18 (“air distribution device” or “air deflection device”), for directing and distributing the airflow F produced by the blower module 13 to one or both (and preferably one or the other) of the first and second air outlets 2, 3 of the hair styling unit 1, depending on the selected blowing mode. The air direction device 18 is typically included in the means for generating the airflow F mentioned previously. As such, the air direction device 18 is mounted to move within the housing 6A of the blower head 10 at least between a first air direction configuration (or "first air distribution configuration") in which the air direction device 18 directs the air flow F towards (and preferably only towards) the first air outlet 2, for example according to the first blowing mode ( figures 3, 6 , 7 And 9 in particular), and a second air direction configuration (or "second air distribution configuration") in which the air direction device 18 directs the air flow F towards (and preferably only towards) the second air outlet 3, for example reciprocally according to the second blowing mode ( Figures 5 , 8 And 12 notably).

[0026] Arranged within the blower head 10, the air direction member 18 is therefore advantageously designed and configured to define, or at least to help define, different paths of the airflow F within the hair styling appliance 1, depending on its air direction configuration relative to the blower head 10. Advantageously, the air direction member 18 is configured to divert the airflow F exiting the guide channel 15, mentioned previously, alternately towards one or the other of the first and second blower outlets 2, 3, depending on its air direction configuration relative to the blower head 10. Preferably, the air direction member 18 forms an air direction duct (or "air diversion duct," or "air flap") that extends beyond one end of the handle 7, and typically beyond the first end 8 of handle 7.

[0027] The air direction device 18 includes an air inlet 19, which is in aerodynamic connection (i.e., communication) with the blower module 13, to collect the airflow F produced by the latter, and through which the airflow F enters the air direction device 18 in an average inlet direction. The air direction device 18 advantageously includes at least one air direction outlet 20, through which the airflow F is directed by the air direction device 18 towards one and / or the other (and preferably towards one or the other) of the first and second air blow outlets 2, 3 depending on the air direction configuration occupied by the air direction device 18 relative to the blower head 10.Preferably, the air direction member 18 includes a (single and) unique air direction outlet 20, to direct the air flow F, via the air direction outlet 20, to the first air blow outlet 2 when the air direction member 18 is in the first air direction configuration (. figures 3 , 6 , 7 And 9 in particular) and conversely towards the second air blower outlet 3 when the air direction device 18 is in the second air direction configuration ( Figures 5 , 8 And 12in particular). In the first air direction configuration, the air direction outlet 20 of the air direction element 18 is thus in aerodynamic communication with the first air blower outlet 2, while in the second air direction configuration, the air direction outlet 20 of the air direction element 18 is reciprocally in aerodynamic communication with the second air blower outlet 3. The design of the hairdressing appliance 1 is thus simplified.As in the embodiment illustrated in the figures, said air direction outlet 20, or each of the air direction outlets as appropriate, is advantageously designed and configured so that the airflow F exits the air direction member 18 via the air direction outlet 20 in an average exit direction which is secant (or at least inclined with respect to), and for example substantially orthogonal, to said average air inlet direction (. figures 6 And 8 ).

[0028] The hair styling device 1 also includes a control system to manage each transition of the device from one of the first and second air direction configurations to the other. The control system is therefore designed to allow the user to alternately select one or the other of the airflow modes, that is, to control the transition of the hair styling device 1 from one airflow mode to another, for example, from the first airflow mode to the second airflow mode and vice versa. As such, as in the embodiment illustrated in the figures, the control system is mechanically connected to the air direction element 18 to manage each transition of the air direction element 18 from one of the aforementioned first and second air direction configurations to the other.By operating the control system, the user can therefore alternately select one or the other of the at least two different blowing modes of the hair styling appliance 1. The user can thus advantageously choose through which of the first and second air outlets 2, 3 the airflow F will be blown out of the hair styling appliance 1, and thus select the operating mode of the hair styling appliance 1. The control system is advantageously separate from the manual control and / or adjustment means 17 for the electrical operation of the hair styling appliance 1 and from the hot / cold air switch that the hair styling appliance 1 may optionally include.It is thus advantageously possible for the user to select one of the blowing modes while another blowing mode is selected, prior to switching on the blower module 13 of the hair styling appliance 1. As will be understood from the following, the control system is advantageously integrated into the blower head 10 and is preferably positioned along its average extension axis BB'. Preferably, at least a portion of an element of the control system forms, or at least contributes to forming, the upper (free) end of the blower head 10. This allows for easy and intuitive activation of the control system by the user.

[0029] More specifically, the housing 6A of the blower head 10 (and more generally the blower head 10 itself) comprises a first portion 10A, which extends along the average extension axis BB' of the blower head 10 from the lower end of the blower head 10 towards the free upper end of the blower head 10. The air direction element 18 is arranged in the first portion 10A of the housing 6A of the blower head 10, such that said first portion 10A advantageously forms a portion called the "aerodynamic portion" of the blower head 10. The housing 6A of the blower head 10 (and more generally the blower head 10 itself) also comprises a second portion 10B, which extends said first portion 10A along the average extension axis BB' of the blower head. 10 and defines said free upper end of the latter.Respectively, the control system is (at least in part) arranged in the second portion 10B of the housing 6A of the blower head 10, so that said second portion 10B thus advantageously forms a portion called "control portion" of the blower head 10.

[0030] The housing 6A of the blower head 10 comprises an inner face 21, which is therefore oriented towards the interior of the housing 6A and is opposite an outer face which advantageously defines at least a portion of an external surface of the blower head 10, and which carries at least one first peripheral wall 22. By "peripheral", it is advantageously understood here that the first peripheral wall 22 (as well as the third, fifth, sixth and seventh peripheral walls 38, 48, 50, 51A, 51B which will be discussed later) is carried by the inner face 21 of the housing 6A of the blower head 10 along at least part (and preferably all) of an internal contour of the housing 6A, that is to say at least part (and preferably all) of a perimeter (or contour) of a section of the blower head 10 which extends in a mean plane intersecting the axis BB' average extension of the blower head 10.Preferably, the first peripheral wall 22 has an annular shape. The control system includes a portion 23 that is arranged stationary (or "stationary portion" 23) relative to the housing 6A of the blower head 10 and at a distance from the free upper end of the blower head 10. This stationary portion 23 is therefore separate from the housing 6A. Located inside the housing 6A of the blower head 10, and more specifically inside the aforementioned control portion 10B, this stationary portion 23 has at least a second peripheral wall 24.By "peripheral" it is advantageously understood here that said second peripheral wall 24 is supported by said stationary portion 23 of the control system by following at least part (and preferably all) of an external contour of said stationary portion 23, that is to say at least part (and preferably all) of a perimeter (or contour) of a section of said stationary portion 23 which extends in a mean plane secant to the axis BB' of average extension of the blower head 10 (an identical definition applies). mutatis mutandis for the fourth and eighth peripheral walls 39, 52A, 52B which will be discussed later). Preferably, the second peripheral wall 24 has an annular shape.

[0031] As illustrated in the example to figures 6 to 12The first perimeter wall 22 is arranged in contact with said second perimeter wall 24, and with at least partial (and preferably substantially total) surface overlap of the latter, to prevent the passage of air from said airflow F from said first portion 10A of the housing 6A of the blower head 10 through said second portion 10B of said housing 6A, at least along an average direction (or "average leakage direction") parallel to said average inlet direction of the airflow F. Advantageously, said first perimeter wall 22 is arranged in contact with said second perimeter wall 24, and with at least partial (and preferably substantially total) surface overlap, along the entire respective length of said first and second perimeter walls 22, 24.In other words, the first and second peripheral walls 22, 24 cooperate to form at least one airtight barrier, to prevent air leakage from said aerodynamic portion 10A of the housing 6A of the blower head 10, through said control portion 10B of said housing 6A. By "in contact", we advantageously expect here, as in all that follows, at least point contact, if not surface contact, taking into account an inevitable functional gap that may exist between the parts (typically on the order of 0.1 mm to 0.3 mm approximately).

[0032] The first perimeter wall 22 therefore has at least one face arranged in contact with a corresponding face of the second perimeter wall 24, and with at least partial (and preferably substantially total) surface overlap of this corresponding face. The face of the first perimeter wall 22 is thus arranged opposite the corresponding face of the second perimeter wall 24, and in contact (preferably plane-on-plane) with the corresponding face. The respective faces of the first and second perimeter walls 22 and 24 advantageously extend along an average plane of extension that intersects the average direction of the airflow inlet F. For example, the first perimeter wall 22 is formed in whole or in part by a first peripheral tongue (or rib) that projects from the inner face 21.Advantageously, said first peripheral tab comes from material with one or more hood pieces forming the housing 6A of the blower head 10 (. figures 6 to 12 , 15 And 16 ). For example, the second peripheral wall 24 is reciprocally formed in whole or in part by a second peripheral tongue (or rib) which projects from an external face of said stationary portion 23 of the control system towards the internal face 21 of the housing 6A of the blower head 10. Advantageously, said second peripheral tongue is made of material with one or more parts forming the stationary portion 23 of the control system ( figures 6 to 12 , 15 And 16As can be understood from the foregoing, the stationary portion 23 of the control system is therefore arranged at a distance from the inner face 21 of the housing 6A of the blower head 10, such that the first and second peripheral walls 22, 24 (and thus the airtight barrier) are arranged in a free interior space between the stationary portion 23 of the control system and the inner face 21 of the housing 6A. By their interaction, the first and second peripheral walls 22, 24 therefore prevent air from passing through this free space. For example, the stationary portion 23 of the control system is arranged aligned along the average extension axis BB' of the blower head 10.

[0033] Thanks to the specific combination of the aforementioned features, the multi-mode blow dryer 1 boasts a particularly efficient aerodynamic design while remaining exceptionally practical to use. The implementation of an airtight barrier, as described above, effectively reduces, if not eliminates, the risk of air leakage towards the control portion of the blow dryer head 10, despite the presence of the control system connected to the air distribution unit 18. This improved aerodynamic efficiency of the blow dryer 1 advantageously allows for the use of a less powerful blower module 13, which is therefore less bulky, quieter, and less expensive.Furthermore, the implementation of such an airtight barrier makes the design and manufacture of the hair styling device 1 particularly simple and inexpensive, insofar as it becomes possible to avoid implementing one or more elastomeric sealing gaskets between the housing 6A of the blower head 10 and the stationary portion 23 of the control system, which would then constitute additional parts separate from the housing 6A and the stationary portion 23. The fact that the second peripheral wall 24 is supported by a portion 23 of the control system which is advantageously stationary relative to the housing 6A of the blower head 10, and is therefore not supported by a portion of the control system which is mobile relative to said housing 6A, contributes as such to the effectiveness of the air leakage barrier effect, but also to the simplicity of the design of the hair styling device 1 (absence of relative movement).Furthermore, the implementation of an airtight barrier advantageously contributes to the ease and safety of use of the hair styling device 1 in the case where the latter includes, as envisaged above, a heating element to raise the temperature of the airflow F. Indeed, by ensuring effective limitation of hot air leakage towards the second portion 10B of the housing 6A of the blower head 10, such an airtight barrier advantageously makes it possible to define, in a simple and effective way, an end portion of the blower head 10 forming a "cold end" (or ". cool tip(in English), through which the user can grasp or manipulate the hair styling appliance 1, particularly during a styling operation. In particular, as will be seen below, such a design advantageously makes the user's manipulation of the control system not only easy, but also particularly safe.

[0034] Preferably, as in the embodiment illustrated in the figures, the air distribution element 18 is designed and configured such that the average inlet direction of the airflow F is parallel to, or coincides with, the average extension axis BB' of the supply air head 10, and therefore the average leakage direction is itself parallel to, or coincides with, the average extension axis BB' of the supply air head 10. In turn, the first and second perimeter walls 22, 24 each generally extend along an average extension plane that is orthogonal to the average extension axis BB' of the supply air head 10. In other words, the respective faces of the first and second perimeter walls 22, 24, which are arranged in contact and overlapping with each other, therefore each preferentially extend along an average extension plane that is orthogonal to the average extension axis BB'. of the blower head 10.Such an arrangement, rather than an arrangement oblique to said axis BB' of average extension, not only helps to further improve the effectiveness of the aforementioned barrier effect, but also to simplify the design and manufacture of the hairdressing device 1.

[0035] The air direction element 18 preferably comprises a side wall 25 (airtight), which extends along an average extension axis EE' of the air direction element 18 between a first end bearing, defining, the air inlet 19 of the air direction element 18, and a second opposite end that is closed (and therefore airtight). Advantageously, the average extension axis EE' of the air direction element 18 is substantially parallel to, or coincides with, said average inlet direction of the airflow F. Depending on the shape and dimensions of the air direction element 18, its average extension axis EE' may constitute, as illustrated in the figures, a longitudinal average extension axis EE' of the air direction element 18.Advantageously, the air direction outlet 20 of the latter is provided, for example in the form of a light, through the side wall 25 of the air direction member 18 and extends, for example, longitudinally along the average extension axis EE' of the air direction member 18 (but not necessarily parallel to said average extension axis EE'). Thus, as mentioned previously, the air direction outlet 20 is therefore advantageously designed and configured so that the airflow F entering through the air inlet 19 exits through the air direction outlet 20 along an average exit direction which is secant to (or at least arranged in an inclined manner with respect to) said average inlet direction along which the airflow F enters the air direction member 18 through said air inlet 19 (. figures 6 And 8As illustrated in the figures, the side wall 25 of the air direction element 18 defines a hollow internal shape whose cross-section preferentially narrows from the first end towards the second end of said side wall 25. Thus, the air direction element 18 advantageously forms an air direction duct, defined by said side wall 25, whose overall internal shape is preferably frustoconical. In other words, the air direction element 18 advantageously comprises a hollow tube with an overall frustoconical internal shape, defined by said side wall 25. This hollow tube typically has an axis of revolution that is advantageously formed by, or parallel to, the average extension axis EE' of the air direction element 18. The average extension axis EE' of the air direction element 18 advantageously coincides with the average extension axis BB' of the blower head 10.The respective extension axes B-B', EE' of the blower head 10 and the air direction member 18 are advantageously collinear with the average longitudinal extension axis AA' of the handle 7. The first end of said side wall 25 thus defines a large base of the overall frustoconical internal shape, through which the airflow F enters the air direction member 18. Such a hollow internal shape, whose cross-section narrows from the first end towards the second end of the side wall 25, advantageously homogenizes the profile of the airflow F circulating inside the air direction member 18, and thus further improves the aerodynamic performance of the hair styling device 1.In the case where, as illustrated in the figures, the hair styling device 1 includes a guide channel 15 arranged inside the handle 7 to guide the air flow F to the blower head 10, said guide channel 15 then typically has an air outlet end 26 to which is connected the air inlet 19 of the air direction member 18, and which is therefore opposite an air inlet end of the guide channel 15 which is connected to the blower module 13.

[0036] Advantageously, as in the embodiment illustrated in the figures, the hair styling appliance 1 includes an internal piping device 27 which defines, at least in part, a first piping section 28 to ensure an airflow connection between the air direction outlet 20 of the air direction member 18 and the first air outlet 2 when the air direction member 18 is in the first air direction configuration, and a second piping section 29 to ensure an airflow connection between said air direction outlet 20 and the second air outlet 3 when the air direction member 18 is in the second air direction configuration. This internal piping device 27 thus advantageously constitutes a "two-way" internal piping device (or "two-way distributor").The internal ducting device 27 is arranged fixed in the housing 6A of the blower head 10, and in particular at least in the air portion 10A of said housing 6A. In return, the air direction member 18 is arranged movable in the internal ducting device 27 between the first and second air direction configurations. Thus, when the air direction member 18 occupies the first air direction configuration, the air direction outlet 20 of the air direction member 18 is in aerodynamic communication with the first ducting portion 28, and therefore with the first air blower outlet 2. On the other hand, the air direction member 18 (for example, the side wall 25 thereof) then closes the second ducting portion 29 (. figure 6). Conversely, when the air direction member 18 occupies the second air direction configuration, the air direction outlet 20 of the air direction member 18 is in aerodynamic communication with the second duct section 29, and therefore with the second air supply outlet 3. The air direction member 18 (for example, its side wall 25) then closes off the first duct section 28 ( figure 8 ).

[0037] Typically, said internal ducting device 27 defines an internal space, which opens out of the internal ducting device 27, on the one hand towards the first air outlet 2 via said first duct section 28 and towards the second air outlet 3 via said second duct section 29, and on the other hand, through an inlet opening (distinct from said duct sections 28, 29), through which the air flow F enters the internal ducting device 27. Advantageously, as in the embodiment illustrated in the figures, the first duct section 28 has a useful air passage cross-section which increases continuously towards the first air outlet 2.Conversely, the second portion of the duct 29 advantageously presents a useful air passage cross-section which decreases continuously towards the second air outlet 3. This advantageously contributes to facilitating the circulation of the air flow F towards the first air outlet 2, respectively towards the second air outlet 3, and thus to reducing a risk of air blockage and an increase in air pressure inside said aerodynamic portion of the blower head 10, as well as the risk of air (possibly hot) escaping from said aerodynamic portion 10A.

[0038] The air direction outlet 20 of the air direction unit 18 is advantageously provided with a plurality of air deflectors 30 (straightening fins), referred to as "primary deflectors," to straighten the airflow F exiting through the air direction outlet 20 from the air inlet 19 of the air direction unit 18, and to optimally guide the airflow F towards the first air outlet 2 or the second air outlet 3, depending on the selected blowing mode. Particularly advantageous in terms of optimal straightening and guidance of the airflow F, the blower head 10 may further comprise: of the first outlet air deflectors 31 (“first secondary air deflectors”) to straighten the air flow F directed towards the first air blower outlet 2 from the air direction outlet 20 of the air direction member 18 when the latter is in said first air direction configuration, and of the second outlet air deflectors 32 (“second secondary air deflectors”) to straighten the initiated air flow F directed towards the second air blower outlet 3 from the air direction outlet 20 of the air direction member 18 when the latter is in said second air direction configuration.

[0039] A plurality of said air deflectors 30 of the air direction outlet 20 of the air direction member 18 is then arranged aligned with a plurality of said first outlet air deflectors 31 when the air direction member 18 is in said first air direction configuration ( figures 6 And 7 ), and a plurality of said air deflectors 30 of the air direction outlet 20 of the air direction member 18 being respectively arranged aligned with a plurality of said second outlet air deflectors 32 when the air direction member 18 is in said second air direction configuration ( figure 8This selective relative alignment of the primary air deflectors and the first or second secondary air deflectors, as described above, contributes in particular to optimizing and homogenizing the airflow F from the styling appliance 1 towards the hair in a highly effective manner, regardless of which air outlet 2, 3 is used. It also helps to facilitate the flow of air F from the styling appliance 1 and thus prevents the risk of air blockage and increased air pressure within the airflow portion of the blower head 10, as well as the risk of air (possibly hot) escaping from this airflow portion.

[0040] Different kinematic arrangements of the air direction element 18 and the blower head can be considered, depending in particular on the shape and configuration of the air direction element 18. Preferably, however, for the sake of simplicity in design and use of the hair styling appliance 1, the blower head 10 is fixedly connected to the handle 7 of the hair styling appliance 1, and the air direction element 18 is mounted to move relative to the blower head 10 and the handle 7 between the first and second air direction configurations. In order to simplify the design of the hair styling appliance 1 and improve its compactness, the air direction element 18 and the blower head 10 are preferably mounted to rotate and pivot about an axis DD' of rotation relative to each other between at least the aforementioned first and second air direction configurations.Preferably, said axis DD' of rotation coincides with (collinear to), or at least parallel to, the axis EE' of average extension of the air direction member 18, which is itself advantageously coincides with (collinear to) the axis BB' of average extension of the blower head 10. According to one variant (not illustrated), the air direction member 18 is fixed relative to the handle 7, and the blower head 10 is then mounted to rotate about said axis DD' of rotation relative to the air direction member 18 and the blower head 10. According to another variant, implemented in the embodiment illustrated in the figures, the air direction member 18 is mounted to rotate about said axis DD' of rotation inside the housing 6A of the blower head 10 between the first and second air direction configurations. The blower head 10 is then advantageously connected in a fixed position to the handle 7.In accordance with the foregoing, this second variant proves preferable insofar as it contributes to making the hair styling device 1 simpler in design and use. Thus, as illustrated in the figures, the air direction member 18 is preferably arranged to rotate about the axis DD' of rotation within the internal ducting device 27 between the first and second air direction configurations.

[0041] Advantageously, the control system for changing the blow-drying mode of the hair styling appliance 1 includes a manual control element, for example a button 33 or a dial, to allow the user to operate said control system and thus manually select one or the other of said blow-drying modes. This manual control element is advantageously movable, that is to say, it is capable of moving between at least two advantageously predefined positions and / or spatial orientations (relative to the rest of the hair styling appliance 1 and in particular to the housing 6A of the blow-drying head 10), typically by translation, rotation, and / or tilting under the effect of a manual mechanical action exerted on it by the user.In view of the above, the manual control element is therefore arranged at the level of the blower head 10, that is to say, it is carried by (or belongs to) the blower head 10, and in particular by the control portion of the housing 6A thereof, and not at the level of the handle 7. As such, this limits the risk of unintentional manipulation of the manual control element by the hand of the user holding the handle 7. Preferably, the manual control element is arranged at such a distance from the handle 7 that it cannot be reached by a finger of the hand of the user holding the handle 7. Inaccessible by a finger of the hand of the user holding the handle 7, the manual control element remains, however, advantageously accessible by a finger of the user's other hand.More preferably, as illustrated in the figures, the manual control element is arranged substantially along an axis parallel to, or coinciding with, the average extension axis BB' of the blower head 10, so that it is accessible to the user from the top of the blower head 10 (and therefore not via either of the first and second faces of the latter). Advantageously, the stationary portion 23 of the control system forms a guide and / or fixing piece for the manual control element. In other words, the stationary portion 23 constitutes a part of the control system that guides the manual control element, particularly during its operation by the user, and / or that provides (advantageously permanent) fixing of the manual control element to the rest of the control system.This helps to make the design and operation of the control system simpler, more reliable and more robust.

[0042] According to an advantageous variant, implemented in the embodiment illustrated in the figures, the control system of the hair styling appliance 1 is a push-push button control mechanism 33 (or "push-push kinematic control mechanism", or "push-push button control mechanism"). push-push"), to control each transition of the hair styling appliance 1 from one blowing mode to another. Designed to be operated by the user, for example manually, the control system is therefore designed and configured to transform each push exerted by the user (typically with a finger) on the control system's button 33 into a transition of the hair styling appliance 1 from one blowing mode to another, or at the very least, from one blowing mode to another. The control system's button 33 then advantageously forms the manual control element mentioned previously.As illustrated in the figures, the push-push button control mechanism 33 is advantageously connected to the air direction element 18 to control each transition of the air direction element 18 from one to the other of the first and second air direction configurations mentioned previously. The button 33 of the push-push button control mechanism 33 typically has a contact portion 34, or interaction portion, designed to come into direct contact with the user, and in particular with a finger of the user, so that the user can push against the button 33 to control the change in blowing mode. This contact portion 34 therefore defines a portion of the external surface of the button 33, oriented towards the outside of the hair styling appliance 1, and accessible to and visible to the user from outside the hair styling appliance 1.Advantageously, as illustrated in the figures, said contact portion 34 defines a free upper end of the button 33, which is opposed to a lower end of the button 33 which is arranged (permanently) inside the hair styling device 1. As such, the button 33 therefore advantageously forms said movable manual control member to allow the user to act on the control mechanism.

[0043] Thanks to such a push-push button control mechanism 33, the use of the hair styling appliance 1 is particularly simple and intuitive, since the reproduction of a simple pushing action performed by the user against the button 33 of the control mechanism, each time in the same direction of push, controls each change of blowing mode of the hair styling appliance 1. Each push exerted by the user on the button 33 of the control mechanism thus controls a cyclic passage of the hair styling appliance 1 from a given initial blowing mode to a next blowing mode, and so on, until returning to said initial blowing mode after the control mechanism has been successively activated as many times as the hair styling appliance 1 has different blowing modes.Assuming that the means for generating the airflow F of the hair styling appliance 1 are designed to generate the airflow F according to only two different blowing modes, each push exerted by the user on the button 33 thus controls the alternating passage from a first operating mode of the hair styling appliance 1 (first blowing mode) to a second operating mode of the hair styling appliance 1 (second blowing mode), then from the first operating mode to the second operating mode of the hair styling appliance 1, and so on.

[0044] The hair styling device 1 advantageously includes a housing 35, which is provided with an access opening 36, inscribed in an opening plane, and through which said housing typically opens from an external surface of the hair styling device 1. As illustrated in the figures, it is therefore an internal housing 35, arranged inside the hair styling device 1, and in particular therefore inside the second portion 10B (control portion) of the housing 6A of the blow-dry head 10, and which is open to the outside of the hair styling device 1 by means of said access opening 36. Typically, the access opening 36 is delimited by the housing 6A of the blow-dry head 10, i.e. that the access opening 36 forms a hole in the housing 6A. The said access opening 36, and in particular a peripheral edge thereof, advantageously defines the said free upper end of the blowing head 10.The button 33 of the push-push control mechanism 33 is advantageously mounted movable, in said housing 35, with translation in the direction of the interior of said housing 35 along a direction CC' of translation, preferably orthogonal to the opening plane, between: . a first stop position, called the released position (or "high position" or even "rest position"), which advantageously constitutes a stable (released) position ( figures 1 to 3 , 5 à 10 , 12 and 17 ), and a second stop position, called the depressed position (or "low position" or "activation position") ( figures 4 , 11 And 18 ), in which the contact portion 34 of the button 33 is arranged inside said housing 35.

[0045] Advantageously, as illustrated in the figures, the housing 35 extends longitudinally (axially) from the access opening 36 towards the interior of the blower head 10 of the hair styling appliance 1, along the direction CC' of translation of the button 33. The released and pressed positions constitute the extreme positions of the button 33 relative to the housing 35 and define a maximum stroke of the button 33 in translation along the direction CC'. Generally, the control mechanism can be designed and configured so that, in the released position, the contact portion 34 of the button 33 is arranged above, flush with, or below the external surface of the hair styling appliance 1 (and therefore typically above, flush with, or below the plane of the access opening 36 to the housing 35).Preferably, however, as illustrated in the figures, the control mechanism is designed and configured so that the contact portion 34 of the button 33 is (entirely) arranged outside the housing 6A of the blower head 10 when the button 33 is in the released position; that is, the contact portion 34 of the button 33 is then arranged above the external surface of the housing 6A of the blower head 10. Thus, in the released position, and therefore in the absence of any pressure exerted on the button 33, the latter advantageously protrudes from the external surface of the blower head 10, typically protruding from the external surface of its housing 6A. This facilitates the visual and / or tactile identification of the button 33, access to the button 33, and its operation by the user.In any event, the control mechanism is advantageously designed and configured so that the contact portion 34 of the button 33 is positioned below the external surface of the hair styling appliance 1 (and therefore below the opening plane of the access port 36 to the housing 35) once the button 33 has reached the depressed position under the effect of a push exerted by the user to switch the hair styling appliance 1 from one blowing mode to another. In other words, the button 33 retracts completely into the housing 35 and thus into the hair styling appliance 1 as the button 33 moves to and into the depressed position. It is therefore necessary for the user, in order to order a change of blowing mode of the hair styling device 1, to insert at least one of his fingers into the housing 35 through the access opening 36 to the latter.The risk of an unintentional change in the blowing mode due to interaction of button 33 with the user or with a surrounding element is thus particularly limited.

[0046] Ensuring effective limitation of hot air leaks, towards the second portion 10B of the housing 6A of the blower head 10, the implementation of first and second peripheral walls 22, 24 as described previously allows particularly safe and comfortable handling of the button 33 (manual control element of the control system), since the temperature of the housing 35 and of the contact portion 34 of the button 33 can thus be kept low enough not to generate a risk of discomfort or burning for a finger of the user.

[0047] Preferably, the housing 35 has a guide portion for the button 33, which is delimited by a tubular side wall 37, preferably solid (i.e., not perforated), along which the contact portion 34 of the button 33 moves when the button 33 translates from the released position to the pressed position (and vice versa from the pressed position to the released position). As such, the guide portion of the button 33 belongs to the control system. The guide portion advantageously extends from the access opening 36 of the housing 35 towards the interior of the hair styling appliance 1, in an extension direction advantageously parallel to the direction CC' of translation of the button 33. Thus, the guide portion advantageously constitutes at least a portion of the housing 35 that is laterally closed, thereby advantageously isolating the contact portion 34 of the button 33.

[0048] Advantageously, the inner face 21 of the housing 6A of the blower head 10 has at least one third peripheral wall 38, and said tubular side wall 37 has in return at least one fourth peripheral wall 39. Said third and fourth peripheral walls 38, 39 are then arranged in contact with each other and with surface overlap (at least partial) of each other, to oppose the passage of air from said airflow F towards the free upper end of the blower head 10 at least along an average direction parallel to said average inlet direction of the airflow F. In other words, the third and fourth peripheral walls 38, 39 cooperate to form at least one airtight barrier, to prevent air leakage towards the free upper end of the blower head 10 at least along an average direction parallel to said average direction of inlet of the airflow F.In particular, the risk of air leaks between the inner face 21 of the housing 6A of the blower head 10 and the tubular side wall 37, and therefore the potential for overheating of the latter, is thus further limited. The third peripheral wall 38 therefore has at least one face arranged in contact with a corresponding face of the fourth peripheral wall 39, and with at least partial (and preferably substantially total) surface overlap of this corresponding face. This face of the third peripheral wall 38 is therefore arranged opposite the corresponding face of the fourth peripheral wall 39, and in contact (preferably plane-on-plane) with this corresponding face. The respective faces of the third and fourth peripheral walls 38, 39 therefore each extend along a mean plane of extension that intersects the mean inlet direction of the airflow F.For example, the third peripheral wall 38 is formed in whole or in part by a third peripheral tongue (or rib) that projects from said inner face 21. Advantageously, said third peripheral tongue is made of material with one or more casing pieces forming the housing 6A of the blower head 10. For example, the fourth peripheral wall 39 is conversely formed in whole or in part by a fourth peripheral tongue (or rib) that projects from an outer face of said tubular side wall 37 towards the inner face 21 of the housing 6A of the blower head 10. Advantageously, said fourth peripheral tongue is made of material with one or more pieces forming the tubular side wall 37.Preferably, for the reasons explained in connection with the first and second perimeter walls 22, 24, the third and fourth perimeter walls 38, 39 each generally extend along a mean extension plane that is orthogonal to the mean extension axis BB' of the supply air head 10. In other words, the respective faces of the third and fourth perimeter walls 38, 39, which are arranged in contact and overlapping with each other, therefore each preferentially extend along a mean extension plane that is orthogonal to the mean extension axis BB' of the supply air head 10. Preferably, the third perimeter wall 38 has an annular shape. Preferably, the fourth perimeter wall 39 has an annular shape.

[0049] As illustrated in the figures, the tubular side wall 37 typically extends from a lower end towards the access opening 36 of said dwelling 35. Particularly advantageously, the lower end 40 of said tubular side wall 37 is arranged in contact with an upper face of the first perimeter wall 22, advantageously along the entire length of said first perimeter wall 22. Conversely, the second perimeter wall 24 is arranged in contact with an opposite lower face of said first perimeter wall 22, and at least partially overlapping the latter (i.e., at least partially overlapping said lower face), advantageously along the entire respective lengths of said first and second perimeter walls 22, 24. In this way, said first perimeter wall 22 is closely intercalated, taken in " sandwichbetween said tubular side wall 37 and said corresponding second perimeter wall 24, which further improves the air barrier effect of the first and second perimeter walls 22, 24 ( figures 6 to 12 , 17 and 18 This therefore contributes to further enhancing the aerodynamic efficiency and user safety of the hairdressing appliance 1. Alternatively, the lower end 40 of the tubular side wall 37 can be arranged in contact with an upper face of the second peripheral wall 24, advantageously along its entire length. Conversely, the first peripheral wall 22 is then arranged in contact with an opposite lower face of the second peripheral wall 24, and at least partially overlapping the latter (i.e., at least partially overlapping said lower face), advantageously along the respective entire lengths of the first and second peripheral walls 22, 24.

[0050] Advantageously, the push-push button control mechanism 33 is designed and configured to control, in a purely mechanical manner, each movement of the air direction element 18 from one of the first and second air direction configurations to the other, and thus each movement of the hair styling appliance 1 from one of the blowing modes to another. The control mechanism is therefore designed and configured to mechanically transform each push exerted by the user (for example, using a finger) on the button 33 of the control mechanism into a movement of the hair styling appliance 1 from one of the blowing modes to another, or at the very least, from one of the blowing modes to another.The push-push button control mechanism 33 is therefore advantageously devoid of electrical or electromechanical components, making its design particularly simple, economical, and reliable. As in the embodiment illustrated in the figures, the button 33 of the push-push button control mechanism is thus advantageously mechanically connected to the air direction member 18 to mechanically transform each movement of the button 33 of the push-push button control mechanism under the effect of a push exerted on the button 33 (by the user) into a relative movement of the air direction member 18 with respect to the blower head 10 from one to the other of the first and second air direction configurations.This is therefore advantageously not an electromechanical push-button control mechanism, which would establish an electromechanical link between the control button and the air direction element. In other words, it would be designed to transform a mechanical push exerted on the button by the user into an electrical command for an electric actuator connected to the air direction element 18. The implementation of such a purely mechanical control mechanism advantageously allows the user to change the airflow mode of the hair styling appliance 1 even when it is not powered on (i.e., when the hair styling appliance 1 is switched off, or even unplugged). The safety of using the hair styling appliance 1 is thus improved, as the risk of an immediate burst of air in a direction not expected by the user, for example, towards their face, is thereby limited.The hair styling device 1 remains simple to use, as the user retains the ability to change the blowing mode of the device while it is in operation. Furthermore, the implementation of a purely mechanical control for changing the blowing mode, rather than an electromechanical one, tends to improve the operational reliability of the hair styling device 1 and reduce its manufacturing and operating costs.

[0051] According to one variant (not shown), the button of the push-push control mechanism is a bistable button. Typically, the control mechanism is then designed and configured so that the button is capable of moving from a first stable position (released position) to a second unstable position (called the unstable pressed position) under the effect of an initial push by the user, and then automatically returning to a third stable position (called the stable pressed position), intermediate between the first stable and second unstable positions, under the effect of an elastic return mechanism when the first push by the user ceases. The button then remains temporarily locked in the stable pressed position, corresponding to one of the blow-drying modes of the hair styling appliance 1.Conversely, the control mechanism is then designed and configured so that the button can move from the stable third pressed position to the unstable second pressed position under the effect of a second push exerted by the user, which follows the first push and thus unlocks the button, and then return to the stable first released position, under the effect of an elastic return element, when the second push exerted by the user ceases. For example, such a control mechanism with a bistable push-push button can implement a mechanism, a kinematic, called a "cardioid" mechanism. According to a more preferred variant, implemented in the embodiment illustrated in the figures, the button 33 of the push-push button control mechanism is a monostable button.The control mechanism is therefore preferably designed and configured so that the button 33 is able to move from a first stable position (released position) to a second unstable position (pressed position) under the effect of a push exerted by the user, and then automatically return from the pressed position to the released position when the user's push ceases, under the effect of an elastic return element 41. This "monostable" variant proves more advantageous than the aforementioned "bistable" variant insofar as, since the button 33 systematically returns to the released position, it remains equally accessible to the user regardless of the selected blowing mode. Furthermore, such a "monostable" variant is simpler to design and more robust in use.Regardless of whether the "bistable" or "monostable" variant is considered, the push-push button control mechanism 33 advantageously includes at least one elastic return element 41 to automatically return the button 33 from the pressed position to the released position. Preferably, said elastic return element 41 is a spring, and in particular a tension, compression, or flexural spring (leaf spring).

[0052] As in the embodiment illustrated in the figures, the contact portion 34 of the button 33 is preferably provided with a concave area, i.e. an area having a concavity oriented outwards from the hair styling device 1. The presence of such a concave area, preferably positioned in the center of said contact portion 34, advantageously allows the placement of an end of a fingertip, and in particular a portion of the fingertip, on the contact portion 34 of the button 33, to help to keep the finger thus positioned for the efficient application of a pushing force against the button 33 to control the change of blowing mode, and this even in particular without visual contact with the button 33.

[0053] According to one variant (not shown), the control mechanism can be designed and configured to transform each push by the user on the control mechanism button into a switch of the styling appliance 1 from one blow-drying mode to another. In this case, a single push by the user on the control mechanism button switches the styling appliance 1 from one blow-drying mode to another. Once the styling appliance 1 is in this other blow-drying mode, the user can then stop pushing the button.According to another, more preferred embodiment, as illustrated in the figures, the control mechanism is designed and configured to transform each press of the control mechanism's button 33 by the user into a switch of the styling appliance 1 from one blow-drying mode to another. The switch is then automatically completed by the automatic return of button 33 to its stable, released position when the user's pressure is released. In other words, the change of blow-drying mode is initiated simply by the user pressing button 33 and then automatically completed by the control mechanism. This allows for a particularly easier, more intuitive, and faster change of blow-drying mode for the user.

[0054] When, as in the embodiment illustrated in the figures, the air direction element 18 is advantageously mounted to rotate and pivot about the axis DD' of rotation between at least the first and second air direction configurations, the control system, for example the push-push button control mechanism 33 mentioned above, then controls the transition of the air direction element 18 from one of the first and second air direction configurations to the other by rotating the air direction element 18 through a predetermined angle of rotation about the axis DD' of rotation. Preferably, the air direction element 18 is mounted to rotate relative to the handle 7 of the hair styling device 1, the axis DD' of rotation of the air direction element 18 being preferably parallel to, or even more preferably coinciding with, the longitudinal extension axis AA' of the handle 7.

[0055] In order to ensure a mechanical connection, as mentioned previously, between the button 33 of the push-push control mechanism and the air direction member 18, and thus to transmit to the latter the mechanical pushing force exerted by the user on the button 33, the control mechanism preferably includes a rotating coupling piece 42, forming a cam and mechanically connected to the air direction member 18 on one side, and preferably on the other side to the button 33. The button 33 is advantageously secured to at least one pin 43 (or roller) forming a follower which cooperates with the cam so that each push exerted on the button 33 causes a rotation of the rotating coupling piece 42 around an axis of rotation and a corresponding rotation of the air direction member 18 around its axis DD' of rotation.Preferably, as in the embodiments illustrated in the figures and as previously mentioned, the button 33 of the push-push control mechanism is mounted for linear translation, and even more preferably for pure linear translation, along the direction CC' of translation, relative to the rest of the hair styling appliance 1, and in particular relative to the housing 6A of the blower head 10, between the released position and the pressed position. Thus, the movement of the button 33 under the effect of a push exerted by the user is a pure linear translation, that is, along a straight sliding joint, in the same average direction as the pushing force exerted by the user. The operation of the button 33 is therefore particularly easy and intuitive for the user, regardless of the position and orientation of the button 33 relative to the user when using the hair styling appliance 1.Alternatively, although less advantageous in terms of design simplicity and size, as well as ergonomics, the button could, for example, be mounted to rotate or pivot, or to rocker, and be shaped and configured so that the contact portion of the button describes a curved arc under the pressure exerted by the user. Even more preferably, the button 33 is arranged relative to the rotating coupling piece 42 such that the direction CC' of rectilinear translation of the button 33 coincides with the axis of rotation of the rotating coupling piece 42.Thus, each push exerted by the user on the button 33 results in a rectilinear translational displacement of the button 33 and, preferably directly, a rotation of the rotating coupling piece 42 along the direction CC' of translation of the button 33, according to a design which is particularly simple and compact due to the preferential absence of an intercalated piece between the button 33 and the rotating coupling piece 42. Alternatively, the direction CC' of rectilinear translation of the button 33 could be provided parallel to the axis of rotation of the rotating coupling piece 42 and offset from the latter, or even provided oblique or orthogonal to the axis of rotation of the rotating coupling piece 42, at the expense however of the simplicity of design and the compactness of the control mechanism.Advantageously, the rotating coupling piece 42 is fixed against rotation relative to the air direction member 18, the axis of rotation of the rotating coupling piece 42 coinciding with the respective axis of rotation DD' of the air direction member 18. Thus, each movement of the button 33 under the effect of a push exerted by the user causes the rotating coupling piece 42 and the air direction member 18 to rotate simultaneously, by the predetermined angle of rotation, around a common axis of rotation. This contributes to the simplicity and reliability of the design and operation of the hair styling appliance 1. For example, as illustrated in the figures, the rotating coupling piece 42 and the air direction member 18 can be assembled by complementary shapes and secured to each other by screwing, clipping / snapping, or gluing.Alternatively, the rotating coupling piece 42 and the air direction member 18 could possibly form together as a monolithic piece.

[0056] Preferably, as in the embodiment illustrated in the figures, the rotating coupling piece 42 more specifically forms a grooved drum cam. The rotating coupling piece 42 thus comprises at least one cylindrical portion of revolution, which is provided with a groove 44 forming a cam track delimited by two opposing lateral walls of the groove 44 and intended to be traversed by the follower pin 43 fixed to the button 33. The pin 43 is thus captive within the groove 44, which helps to ensure a reliable mechanical connection between the button 33 and the rotating coupling piece 42. Even more preferably, the groove 44 is peripheral, extending around the entire circumference of the cylindrical portion of revolution, and closed upon itself.The rotation of the rotating coupling piece 42 around its axis of rotation can thus be done in the same direction of rotation with each command to change the configuration of the air direction, and therefore the blowing mode.

[0057] For example, in the embodiment illustrated in the figures, the button 33 is mounted in rectilinear (pure) translation, its translation direction CC' (sliding joint), which coincides with the axis of rotation of the rotating coupling part 42. Preferably, the rectilinear translation direction CC' is parallel to, or coincides with, the average extension axis BB' of the blower head 10, said average extension axis BB' being itself advantageously parallel to, or coincides with, the rotation axis DD' of the air direction member 18, said rotation axis DD' being itself advantageously parallel to, or coincides with, the average longitudinal extension axis AA' of the handle 7. This advantageously results, in particular when the four axes and directions mentioned above are coincident, in a particularly simple construction and a particularly compact hairdressing device 1.The button 33 advantageously comprises a circular-sectioned lateral skirt portion 45, rotating along the rectilinear translation direction CC', arranged parallel to the cylindrical portion of revolution of the rotating coupling piece 42, at least partially overlapping said cylindrical portion. The button 33 is connected not to a single pin 43, but to two follower pins 43, arranged on either side of the rectilinear translation direction CC', in order to further enhance the mechanical connection between the button 33 and the rotating coupling piece 42. A free end portion of each pin 44 is housed in the groove 44 of the grooved drum cam formed here by the rotating coupling piece 42.

[0058] In order to prevent the button 33 from rotating relative to the rest of the hair styling appliance 1, and in particular relative to the blower head 10 thereof, and to guide the translational movement of the button 33 along the rectilinear translation direction CC', a portion of each of the pins 43 is housed within a respective oblong guide slot 46 formed in the stationary portion 23 of the control system. As in the embodiment illustrated in the figures, the stationary portion 23 of the control system may advantageously form a part integral with the aforementioned internal channeling device 27 ( Figures 13 and 14 ). For example, said stationary portion 23 may have a general tubular shape, inside which the rotating coupling piece 42 is housed, and in which the lateral skirt portion 45 of the button 33 slides in translation ( Figures 13 and 14). Thus, as previously envisaged, the stationary portion 23 of the control system here forms a guide and fixing piece for the button 33 (manual control element). To facilitate the assembly of the hair styling device 1, the pins 43 can each be defined by a cylindrical pin press-fitted into an opening formed through the wall of the side skirt portion 45 of the button 33, once the button 33 is assembled overlapping the cylindrical portion of revolution of the rotating coupling piece 42, so that one portion of the pins defining such a follower pin 43 extends radially inside the button 33, while an opposite portion of the pins extends radially outside the button 33 and is captured in one of the oblong guide slots 46.

[0059] Advantageously, the push-push button control mechanism 33 includes a spring return element 41, as previously mentioned, such as a compression spring. The spring return element 41 is configured and arranged to automatically return the button 33 to its stable released position (unpressed position) when the user ceases to push on the button 33. As illustrated in the figures, the compression spring can be arranged between an inner surface of the button 33 and a surface of the rotating coupling piece 42.The cam formed by the rotating coupling piece 42 is preferably shaped and configured so that the rotation of the air direction member 18 according to said predetermined angle of rotation, which allows the hair styling device 1 to pass from one blowing mode to another by a corresponding passage of the air direction member 18 from one air direction configuration to another, is achieved for only a first part of said predetermined angle of rotation, by a movement of the button 33 of the push-push control mechanism under the effect of a push exerted by the user on the button 33, then, for the rest of said predetermined angle of rotation, by a movement in the opposite direction of the button 33 under the joint effect of the elastic return member 41 and the cam, when the push exerted by the user ceases.Thus, the change in blowing mode is initiated simply by the user pushing button 33, as previously mentioned as the preferred option. The change in blowing mode is then automatically completed by the control mechanism after the user releases the button 33. The user therefore only needs to exert a fraction of the effort required to rotate the air direction element 18 through the predetermined angle to switch it between its different air direction configurations. As mentioned above, this allows for a simpler, more intuitive, and faster change in blowing mode for the user.More preferably, the cam is shaped and configured so that the rotation of the air direction member 18 according to said predetermined angle of rotation is achieved for 50% or less (i.e. for at most 50%, and for example for 30%, 40% or 50% only) of said predetermined angle of rotation, by a movement of the button 33 of the control mechanism under the effect of a push exerted on the button 33, and then, for the remainder (i.e. 50% or more, for example for 50%, 60% or 70%) of said predetermined angle of rotation, by a movement in the opposite direction of the button 33 under the combined effect of the elastic return member 41 and the cam, when the push exerted ceases.

[0060] Such a feature can be achieved, for example, by modulating the cam track profile defined by the groove 44 of the aforementioned grooved drum cam, to define at least two consecutive cam track segments, forming ramps of opposite slopes, and whose path by the follower pin 43 causes the air direction member 18 to rotate by the predetermined angle of rotation as follows. First, when the user presses the button 33 to move it from the released position to the pressed position, the pin 43 travels along a first cam track segment, sliding against one of the lateral walls of the groove 44, which forms a first ramp, thus causing the rotating coupling piece 42 to rotate by a first angle of rotation.Then, when the user stops pushing on the button 33, the elastic return element 41 automatically returns the button 33 to its released position. The pin 43 then travels a second portion of the cam track, sliding against the other side wall of the groove 44, which forms a second ramp with a slope opposite to that of the first ramp. The pin 43 is pressed against this second ramp by the elastic return element 41, thus forcing the rotating coupling piece 42 to rotate in the same direction by a second angle of rotation. The slope of the first ramp is chosen to be equal to or steeper than the slope of the second ramp, so that the first angle of rotation is less than the second angle of rotation. The sum of the first and second angles of rotation corresponds to the predetermined angle of rotation.Thus, the first angle of rotation corresponds to the movement initiated by push by the user, while the second angle of rotation corresponds to the complementary automatic movement described previously.

[0061] For example, as in the embodiment illustrated in the figures, the transition of the air direction member 18 from one to the other of the first and second air direction configurations is achieved by rotating the air direction member 18 about its axis DD' of rotation by a predetermined angle of rotation of 180°. Thus, by rotating 360° about its axis DD' of rotation under the effect of two successive pushes exerted on the button 33, the air direction member 18 can advantageously change its angular configuration twice, alternating between said first and second air direction configurations.The grooved drum cam can then be advantageously shaped and configured so that the rotation of the air direction member 18 according to said predetermined angle of rotation is achieved for 90° (first angle of rotation) only (i.e. 50%) by a pure rectilinear translational movement of the button 33, from its released (stable) position to its pressed (unstable) position, under the effect of a push exerted by the user on the button 33, then for the remaining 90° by a pure rectilinear translational movement in the opposite direction of the button 33, from its pressed (unstable) position to its released (stable) position, under the joint effect of the elastic return member 41 and the grooved drum cam, when the push exerted by the user ceases.

[0062] Advantageously, the internal ducting device 27 described above has an upper external surface portion 47, oriented towards the free upper end of the blower head 10. As illustrated in the figures, said upper external surface portion 47 can thus preferentially form an annular upper wall of the internal ducting device 27. Advantageously, said upper external surface portion 47 defines an upper end of the internal ducting device 27. Conversely, the inner face 21 of the housing 6A of the blower head 10 carries a fifth peripheral wall 48.The upper external surface portion 47 is then preferably arranged in contact with the fifth peripheral wall 48, and at least partially overlapping it, advantageously along the entire length of said fifth peripheral wall 48, so as to prevent the passage of air from the airflow F from the first portion 10A of the housing 6A through said second portion 10B of the housing 6A at least in an average direction parallel to said average inlet direction of the airflow F. This therefore contributes to further enhancing the aerodynamic efficiency and the safety of use of the hair styling device 1, by creating an airtight barrier between the internal ducting device 27 and the control portion 10B of the housing 6A of the blower head 10.For example, as in the embodiment illustrated in the figures, said fifth peripheral wall is formed in whole or in part by a fifth peripheral tongue (or rib) which extends projecting from said inner face 21. Advantageously, the fifth peripheral tongue is made of material with one or more hood pieces forming the housing 6A of the blower head 10. Preferably, the fifth peripheral wall 48 has an annular shape.

[0063] Advantageously, the internal ducting device 27 preferably has a lower external surface portion 49, oriented towards the handle 7 and opposite to the aforementioned upper external surface portion 47. As in the embodiment illustrated in the figures, this lower external surface portion 49 can thus form an annular lower wall of the internal ducting device 27. Advantageously, this lower external surface portion 49 defines a lower end of the internal ducting device 27. Conversely, the inner face of the housing 6A of the blower head 10 advantageously carries a sixth peripheral wall 50.The lower external surface portion 49 is then preferably arranged in contact with, and at least partially overlapping, the sixth peripheral wall 50, to prevent the passage of air from the airflow F, from the first portion 10A of the housing 6A of the blower head 10 (the aerodynamic portion), towards the handle 7 at least along an average direction parallel to the average direction of the airflow inlet. Preferably, the sixth peripheral wall 50 has an annular shape. Thus, the lower external surface portion 49 and the sixth peripheral wall 50 cooperate to form an airtight barrier that limits, if not completely prevents, the risk of air leakage inside the housing 6 of the hair styling appliance 1 towards its handle 7. This therefore further enhances the aerodynamic efficiency and the safety of use of the hair styling appliance 1.

[0064] Preferably, the inner face 21 of the housing 6A of the blower head 10 carries peripheral seventh walls 51A, 51B, spaced and staggered along said axis BB' of average extension of the blower head 10. Conversely, the aforementioned guide channel 15 ("guide tube") advantageously carries peripheral eighth walls 52A, 52B spaced and staggered along said axis BB' of average extension of the blower head 10. As seen in the example at figures 5 to 12In particular, each of said seventh peripheral walls 51A, 51B is arranged in contact (preferably plane-on-plane) with one of said corresponding eighth peripheral walls 52A, 52B and with at least partial surface overlap of the latter, to prevent the passage of air from said airflow F from said first portion (aerodynamic portion) of the housing 6A of the blower head 10 towards the duct 7 along an average direction parallel to said average inlet direction of the airflow F. Advantageously, said seventh and eighth peripheral walls 51A, 51B, 52A, 52B are of a design respectively that is globally similar to those of the first and second peripheral walls 22, 24 described previously. Thus, what has been described previously concerning first and second peripheral walls 22, 24 applies advantageously mutatis mutandis audit seventh and eighth peripheral walls 51A, 51B, 52A, 52B.

[0065] As seen in the example to figures 5 to 12The seventh and eighth peripheral walls 51A, 51B, 52A, 52B are arranged in a free interior space of the housing 6A of the blower head 10 provided between the guide channel 15 and the inner face 21 of said housing 6A. In a particularly advantageous manner, as in the embodiment illustrated in the figures, the seventh and eighth peripheral walls 51A, 51B, 52A, 52B are arranged in the immediate vicinity of an upper end zone of the guide channel 15 (delimited by the air outlet end 26 of the latter), at the level of which the air inlet 19 of the air distribution element 18 is connected to the guide channel 15.The seventh and eighth peripheral walls 51A, 51B, 52A, 52B thus cooperate in pairs to form at least one pair of airtight barriers, preventing air leakage from the "aerodynamic portion" 10A of the blower head housing 6A 10 towards the inside of the handle 7, and in particular between the guide channel 15 and the inner face of the housing 6A. This proves particularly useful in cases where, as in the embodiment illustrated in the figures, the air distribution element 18 forms an air direction duct and is mounted for rotation within the blower head housing 6A 10, and relative to the guide channel 15. This further enhances the aerodynamic efficiency and safety of use of the hair styling device 1.In particular, this prevents hot air from leaking between the guide channel 15 and the inner face 21 of said housing 6A towards the inside of the handle 7, which would uncomfortably or even dangerously heat the gripping surface of the handle 7. In particular, said seventh and eighth peripheral walls may respectively be formed in whole or in part by seventh and eighth peripheral tabs (or ribs) which extend projecting from said inner face 21, respectively projecting from an outer face of the guide channel 15 oriented towards the inner face 21 of the housing 6A of the blower head 10.

[0066] To further improve the practicality and intuitiveness of the hair styling appliance 1, the first and second air outlets 2, 3 are preferably arranged opposite each other, on either side of a plane P1 in which is inscribed an average extension direction of the hair styling appliance 1 (or, where applicable, one of its average extension directions). This average extension direction advantageously corresponds to an average extension direction of a portion of the hair styling appliance 1 that carries the air outlets 2, 3. This average extension direction of the hair styling appliance 1 thus preferably corresponds to the average extension axis BB' of the blower head 10.The air outlets 2, 3 are therefore preferentially arranged opposite each other, on either side of a plane P1 in which is inscribed the axis BB' of average extension of the blower head 10. In this way, the first and second air outlets 2, 3 are advantageously not simultaneously visible to the user, when the latter looks at the first air outlet 2, respectively the second air outlet 3, from the front.The user can easily use the hair styling device 1 alternately according to the first blowing mode or according to the second blowing mode, typically by a simple 180° rotation of the handle 7 of the hair styling device 1 to orient that of the corresponding air blowing outlets 2, 3 towards the hair to be treated, in the preferential case where the blowing head 10 is fixedly connected to the handle 7 and where the air direction member 18 is mobile to rotate relative to the blowing head 10 and the handle 7.

[0067] Preferably, the hair styling appliance 1 further includes an indicator system, comprising a visual selection indicator, to provide the user with visual information as to which of the blow-drying modes is selected. The implementation of such an indicator system is particularly advantageous in the preferred case, illustrated in the figures, where the control mechanism button 33 is a monostable button, i.e., a button that always occupies the same rest position, regardless of the operating mode of the appliance 1. As in the embodiment illustrated in the figures, the indicator system can be a mechanical indicator system, i.e., an indicator system whose change of state is controlled purely mechanically to reflect the selected blow-drying mode.Accordingly, the indicator system preferably comprises at least one opening 53A, 53B (through-hole, optionally closed by a transparent element) formed in one face of the control mechanism's button 33, and an indicator piece 54, which is housed at least partially in a free space provided inside the button 33 and which is movable relative to said opening 53A, 53B so as to be visible or not, or to be visible in a different way (from outside the device 1), through said opening 53A, 53B depending on which of the blowing modes is selected. Advantageously, the face of the button 33 in which said opening 53A, 53B is formed is a face that is visible to the user regardless of the blowing mode selected. Even more advantageously, as in the embodiment illustrated in the figures, said face of the button 33 carries the contact portion 34 of the latter mentioned above.More preferably, the indicator system comprises at least two (distinct) openings 53A, 53B provided in the face of the button 33, the indicator piece 54 being movable relative to the button 33 so as to be visible or not, or to be visible in a different way (from outside the device 1), alternately through one or the other of the openings 53A, 53B depending on which of the blowing modes is selected. More generally, the indicator system may advantageously comprise as many openings 53A, 53B as the hair styling device 1 has different blowing modes. The openings 53A, 53B may have an identical shape (. figure 19 ), or different, distinctive forms.

[0068] For example, as in the embodiment illustrated in the figures, the indicator piece 54 can be mechanically connected to the air direction member 18 via the rotating coupling piece 42, and prevented from rotating relative to it, such that the rotation of the rotating coupling piece 42 causes a corresponding rotation of the indicator piece 54. The indicator piece 54 may advantageously include at least one arm or disc 55, which extends radially about an axis of rotation of the indicator piece 54, and whose upper face, oriented towards the face of the button 33 carrying the openings 53A, 53B, has a colored (or otherwise marked) area 56. The colored area 56 then forms the visual selection indicator.The rotating coupling piece 42 being advantageously fixed against rotation relative to the air direction member 18, the axis of rotation of the rotating coupling piece 42 being coincident with the respective axis of rotation DD' of the air direction member 18, a rotation of the air direction member 18 by said predetermined angle of rotation thus entails a corresponding rotation of the indicator piece 54 by the same predetermined angle of rotation. The openings 53A, 53B are advantageously configured and arranged such that: . when the air direction element 18 occupies the first air direction configuration, a colored area 56 on the upper face of the disc 55 of the indicator part 54 is arranged opposite one of the openings 53A, 53B so as to be visible to the user through it ( figure 19, on the left), then when the air direction device 18 occupies the second air direction configuration by rotation of said predetermined angle of rotation, said colored area 56 is then arranged opposite the other of the openings 53A, 53B so as to be visible to the user through the latter ( figure 19 (on the right).

[0069] As previously mentioned, the predetermined angle of rotation is 180° in the example illustrated in the figures, and the air direction member 18 advantageously changes its angular configuration twice, alternating between the first and second air direction configurations, when it is rotated 360° about its axis DD' of rotation under the effect of two successive pushes exerted on the button 33. As illustrated in the figures, the openings 53A, 53B are advantageously arranged on either side of the coincident axes of rotation of the air direction member 18, the rotating coupling piece 42, and the indicator piece 54. The indicator piece 54 here comprises a disk 55, which extends radially with respect to the axis of rotation of the indicator piece 54, and whose upper face, oriented towards the face of the button 33 carrying the openings 53A, 53B, presents a colored area 56 which occupies half of the upper surface of the disk, for example.

[0070] Of course, other designs and configurations of the indicator system could alternatively be considered. In particular, one could alternatively consider implementing an indicator system comprising a visual selection indicator light, and therefore electrically controlled. Furthermore, while in the embodiment illustrated in the figures the visual selection indicator is visible from the top of the blower head 10 of the hair styling appliance 1, it can advantageously be provided that the indicator system includes a visual selection indicator, illuminated or not, which is alternatively visible from the side of the first and second faces 4, 5 that bear the air blower outlet 2, 3 corresponding to the selected blowing mode, so as to make the hair styling appliance 1 even more practical and intuitive to use.

[0071] It should be noted that the use of the terms "first," "second," "third," "fourth," "fifth," "sixth," "seventh," and "eighth" in the preceding text is not intended to introduce any technical limitation, to indicate any degree of order or relative importance, but solely to facilitate understanding of the invention. As such, these terms may be omitted entirely where there is no possibility of confusion.

Claims

1. A portable hair styling device (1) comprising • a handle (7) for manual gripping and a blower head (10) connected to the handle (7), the blower head (10) comprising a housing (6A) and carrying first and second air blowing outlets (2, 3) to blow an air flow (F) out of the hair styling device (1), • a blower module (13) to produce the said air flow (F), an air direction member (18) comprising an air inlet (19) in aerodynamic connection with the blower module (13) and through which the air flow (F) enters the air direction member (18) according to an average entry direction, the air direction member (18) being movably mounted inside the housing (6A) of the blower head (10) at least between a first air direction configuration in which the air direction member (18) directs the air flow (F) towards the first air blowing outlet (2), and a second air direction configuration in which the air direction member (18) directs the air flow (F) towards the second air blowing outlet (3), • a control system, which is mechanically connected to the air direction member (18) to control each transition of the air direction member (18) from one to the other of the first and second air direction configurations, the blower head (10) extending along an average extension axis (B-B') between a lower end at which the blower head (10) is connected to the handle (7) and a free upper end, the housing (6A) of the blower head (10) comprising a first portion (10A), which extends along said average extension axis (B-B') from said lower end towards said free upper end and in which the air direction member (18) is arranged, and a second portion (10B) which extends said first portion (10A) along said average extension axis (B-B') and defines said free upper end, and in which the control system is arranged, characterized in that the housing (6A) of the blower head (10) comprises an inner face (21) carrying at least one first peripheral wall (22), the control system comprising a portion (23) which is arranged stationary with respect to said housing (6A) and at a distance from said free upper end of the blower head (10), and which carries at least one second peripheral wall (24), said first peripheral wall (22) being arranged in contact with said second peripheral wall (24) and at surface overlap with the latter to oppose the passage of air from said air flow (F) from said first portion (10A) through said second portion (10B) along a mean direction parallel to said mean entry direction of the air flow (F).

2. A hair styling device (1) according to the preceding claim, in which the air direction member (18) is rotatably mounted inside the housing (6A) of the blower head (10) between the first and second air direction configurations.

3. A hair styling device (1) according to any one of the preceding claims, in which said mean entry direction of the air flow is parallel to, or coincident with, the average extension axis (B-B') of the blower head (10), the first and second peripheral walls (22, 24) each extending along a mean extension plane which is orthogonal to said average extension axis (B-B') of the blower head (10).

4. A hair styling device (1) according to any one of the preceding claims, which includes a heating element to raise the temperature of the air flow (F) produced by the blower module (13).

5. A hair styling device (1) according to any one of the preceding claims, in which the control system comprises a manual control member, such as a button (33) or a wheel, to allow the user to act on said control system.

6. A hair styling device (1) according to the preceding claim, in which said stationary portion (23) of the control system forms a guiding and / or fixing part for the manual control member.

7. A hair styling device (1) according to any one of claims 5 and 6 in which said control system is a push-push button control mechanism (33).

8. A hair styling device (1) according to the preceding claim, in which the blower head (10) comprises a cavity (35), which is provided with an access opening (36) that defines said free upper end of the blower head (10) and in which the button (33) of the push-push button control mechanism (33) is movably mounted for translation towards the inside of said cavity (35) between a first stop position, called the released position, and a second stop position, called the depressed position, in which a contact portion (34) of the button (33) is arranged inside said cavity (35).

9. A hair styling device (1) according to the preceding claim, in which the cavity (35) has a guiding portion for the button (33), which is defined by a tubular side wall (37), the inner face (21) of the housing (6A) of the blower head (10) carrying at least one third peripheral wall (38), said tubular side wall (37) carrying at least one fourth peripheral wall (39), the third and fourth peripheral walls (38, 39) being arranged in contact with each other and at surface overlap one with the other to oppose the passage of air from said air flow (F) towards the free upper end of the blower head (10) along a mean direction parallel to said mean entry direction of the air flow (F).

10. A hair styling device (1) according to the preceding claim, in which said tubular side wall (37) extends from a lower end (40) towards the access opening (36), the lower end (40) of said tubular side wall (37) being arranged: • in contact with a upper face of said first peripheral wall (22), said second peripheral wall (24) being arranged in contact with an opposing lower face of said first peripheral wall (22), and at least partial overlap with the latter, or • in contact with a upper face of the second peripheral wall (24), said first peripheral wall (22) being arranged in contact with an opposite lower face of said second peripheral wall (24) and at least partial overlap with the latter.

11. A hair styling device (1) according to any one of the preceding claims, in which the air direction member (18) comprises at least one air direction outlet (20), and preferably a single air direction outlet (20), through which the air flow (F) exits the air direction member (18) according to an average exit direction which intersects said mean entry direction of air.

12. A hair styling device (1) according to the preceding claim, which comprises an internal ducting device (27) that defines a first ducting portion (28) to ensure an aerodynamic communication of the air direction outlet (20) of the air direction member (18) with the first air blowing outlet (2) when the air direction member (18) occupies the first air direction configuration, and a second ducting portion (28) to ensure an aerodynamic communication of said air direction outlet (20) with the second air blowing outlet (3) when the air direction member (18) occupies the second air direction configuration, said internal ducting device (27) being arranged stationary within the housing (6A) of the blower head (10), the air direction member (18) being arranged movable within the internal ducting device (27) between said first and second air direction configurations.

13. A hair styling device (1) according to the preceding claim, in which the internal ducting device (27) has an upper external surface portion (47), the inner face (21) of the housing (6A) of the blower head (10) carrying a fifth peripheral wall (48), said upper external surface portion (47) being arranged in contact with said fifth peripheral wall (48), and at least partial overlap with the latter.

14. A hair styling device (1) according to any one of claims 12 and 13, in which the internal ducting device (27) has a lower external surface portion (49), the inner face (21) of the housing (6A) of the blower head (10) carrying a sixth peripheral wall (50), said lower external surface portion (49) being arranged in contact with said sixth peripheral wall (50), and at least partial overlap with the latter, to oppose the passage of air from said air flow (F) towards the handle (7) along a mean direction parallel to said mean entry direction of the air flow (F).

15. A hair styling device (1) according to any one of the preceding claims, in which the blower module (13) is arranged within the handle (7) or is assembled to the handle (7) at a second end (9) of the handle (7), opposite to a first end (8) of the handle (7) at which the blower head (10) is connected to the latter, the hair styling device (1) comprising a guide channel (15) arranged at least partially inside the handle (7) to guide the air flow (F), said guide channel (15) having an air outlet end (26) to which the air inlet (19) of the air direction member (18) is connected, the inner face (21) of the housing (6A) of the blower head (10) carrying spaced and staggered seventh peripheral walls (51A, 51B) along said average extension axis (B-B') of the blower head (10), the guide channel (15) carrying spaced and staggered eighth peripheral walls (52A, 52B) along said average extension axis (B-B') of the blower head (10), each of the said seventh peripheral walls (51A, 51B) being arranged in contact with one of the said corresponding eighth peripheral walls (52A, 52B), and at least partial surface overlap with the latter to oppose the passage of air from said air flow (F) from the first portion (10A) of the housing (6A) of the blower head (10) towards the handle (7) along a mean direction parallel to said mean entry direction of the air flow (F).

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