EP4048115B1 - Hair-styling appliance comprising a rotatable swivel accessory - Google Patents

Description

Technical area

The present invention relates to the field of hairdressing devices and in particular to the field of hairdressing devices making it possible to create curls and/or waves on the hair. The present invention relates in particular to the field of hairdressing devices comprising a rotating accessory.

More precisely, the invention relates to the technical field of hairdressing appliances comprising a main body comprising a handle extending longitudinally along a first axis, an accessory intended to come into contact with the hair to shape the latter, said accessory extending longitudinally along a second axis, a motor for rotating the accessory around said second axis so that the hair can be wound around said accessory.

This type of device is commonly called a rotating brush.

Prior art

We are well aware of hairdressing devices that allow you to relax your hair and/or add volume and waves to your hair. These devices are generally equipped with a rotating accessory forming a mandrel on which the hair can be shaped or even wound. The mandrel is generally heated which allows the shaping of the hair to be fixed. These devices can blow hot air, to heat the accessory on the one hand and the hair on the other hand, as is for example the case of the device described by the patent EP2131695 of the applicant, which forms a rotating blower brush.

This type of device gives excellent results in shaping hair and is therefore well appreciated by users. However, this type of device can sometimes present some difficulties when using it, particularly when the device is used by a single person who is looking to do their own hair.

Indeed, when the user wishes to shape the hair located at the back of his head, he must perform a complex movement with his arm, forearm and wrist to correctly position the device behind his head. The movement in question, then holding the device in position, can then prove delicate, non-intuitive and above all uncomfortable. Indeed, in order to position the prior art hairdressing device correctly behind his head, the user must raise his arm to shoulder level, extend it towards the side, while completely bending his elbow to bring his forearm and his hand behind his head. Finally, the user must generally bend their wrist to orient the accessory of the hairdressing device in the correct position in relation to their hair.

This sometimes results in a position for using known devices that is complex, uncomfortable, tiring or even painful or even sometimes impossible to perform for people suffering from joint or muscular disorders. The physical effort required to use existing devices, particularly on the back of the head, can therefore be significant or even painful.

There is therefore a need to improve existing devices, particularly in terms of their ergonomics and comfort of use. The document FR2978332 discloses a rotating blower brush.

Presentation of the invention

The present invention aims to overcome the aforementioned drawbacks.

An objective of the invention is to provide a hairdressing device which is particularly ergonomic to use, whatever the area of the head to be styled.

Another objective of the invention is to propose a hairdressing device which is particularly ergonomic to use, both for a user using the device on himself (user doing his own hair) and for a user using the device on another person (user styling another person), and this on all parts of the hair.

Another objective of the invention is to provide a hairdressing device which is particularly simple and intuitive to use.

Another objective of the invention is to propose a hairdressing device which is particularly comfortable to use.

Another objective of the invention is to provide a hairdressing device which is particularly safe.

Another objective of the invention is to provide a hairdressing device which is particularly reliable and robust.

Another objective of the invention is to propose a hairdressing device which is particularly economical to design and manufacture.

Another objective of the invention is to provide a hairdressing device which is particularly easy to repair.

Another objective of the invention is to provide a hairdressing device which is particularly effective for shaping hair, in particular for creating curls or waves or obtaining a "brushing" effect on these. last.

• un corps principal comprenant une poignée s'étendant longitudinalement selon un premier axe,
• un accessoire destiné à venir au contact des cheveux pour mettre en forme ces derniers, ledit accessoire s'étendant longitudinalement selon un deuxième axe,
• un moteur d'entrainement en rotation de l'accessoire autour dudit deuxième axe afin que les cheveux puissent être enroulés autour dudit accessoire.

These objectives are achieved using a hairdressing device comprising:

• a main body comprising a handle extending longitudinally along a first axis,
• an accessory intended to come into contact with the hair to shape the latter, said accessory extending longitudinally along a second axis,
• a motor for rotating the accessory around said second axis so that the hair can be wound around said accessory.

By handle, we mean for example any element allowing a user to grasp and manipulate the hairdressing appliance, such as a handle for example. The handle can advantageously form the main body or, on the contrary, be separated from the main body, while still being connected to the latter. Preferably the handle is aligned with the main body. In other words, the handle and the main body both extend along the first axis. The hairdressing device is thus advantageously portable, that is to say it can be transported and oriented in space according to the user's wishes.

Preferably, the accessory has a revolution shape, and advantageously a cylindrical shape, which maximizes the surface area coming into contact with the hair to shape it. In addition, such a shape makes it easier to rotate the accessory.

Advantageously, the accessory is removable, that is to say removable, that is to say that it is possible for the user to remove the accessory from the hairdressing appliance, that is i.e. to separate the accessory and the handle, for example to replace it with another accessory of a different size and/or shape. This allows the user to choose as they wish the hairstyle that they will create on their hair, in particular by being able to choose the diameter of the curls or waves that they will create using the accessory. This can also allow the user to choose the most suitable accessory depending on the nature of their hair.

Advantageously, the accessory comprises a contact surface intended to serve as a hair winding surface and a plurality of pins projecting from said contact surface. Said plurality of pins makes it possible to grip the hair and, combined with the rotation of the accessory, to wrap it well around the winding surface. Preferably, the contact surface is a surface of revolution, advantageously cylindrical thus forming a mandrel on which the hair can wind automatically under the effect of the rotation of the accessory.

Advantageously, the motor is an electric motor. However, it is possible, without departing from the scope of the invention, that the expression "motor" could designate a motor driven by another energy, such as for example pneumatic, magnetic or even human energy.

Preferably, the hairdressing appliance comprises an air movement device making it possible to create an air flow between an air inlet and an air outlet, the main body comprising the air inlet, preferably at a free end, and the accessory comprising the air outlet.

• une première position dans laquelle lesdits deuxième axe et premier axe forment entre eux un angle plat,
• une deuxième position dans laquelle lesdits deuxième axe et premier axe forment entre eux un angle différent de l'angle plat.

According to the invention, said accessory is movable between at least two positions each allowing the rotation of the accessory around said second axis:

• a first position in which said second axis and first axis form a flat angle between them,
• a second position in which said second axis and first axis form between them an angle different from the flat angle.

In the preferential case where the hairdressing appliance comprises a device for moving the air, each of said first position and second position guarantees the correct extraction of air through the air outlet.

As is well known to those skilled in the art, the expression “flat angle” defines an angle of 0° or 180°.

In other words, thanks to the invention, it is possible, advantageously at the initiative of the user of the device, to arrange the accessory in two distinct and different positions. In the first position, said first axis and second axis form a flat angle: they are therefore either aligned (that is to say merged) or parallel. Thus, in this first position, the accessory and the handle are either aligned (one being an extension of the other), (that is to say merged) or parallel. In the second position, said first axis and second axis form an angle which is not flat: they are therefore neither aligned, nor merged, nor parallel. Thus, in this second position, the accessory and the handle form an elbow, one being inclined relative to the other. Advantageously the positions retained are either a position in which the accessory is aligned with the main body, or a position in which the accessory is inclined relative to the main body.

Thus, thanks to said at least two positions of the accessory, it is possible for the user to orient the accessory as they wish in relation to the handle by which he holds the hairdressing appliance: the accessory is therefore orientable .

This remarkably improves the ergonomics of the hairdressing device, particularly for a user who uses the hairdressing device on himself (a user who therefore does his hair alone). Indeed, the user can use the hairdressing device which is the subject of the invention in the first position to shape his hair located on the side of his head, in a manner known as such.

On the other hand, the user can also place the accessory of the hairdressing device which is the subject of the invention in the second position to shape his hair located at the back of his head and/or on the sides. of the head. The fact that the handle and the accessory are then angled relative to each other will prevent the user from having to "break their arm" (that is to say, raise their shoulder in order to deploy his arm perpendicular to his body, while folding his forearm completely back) to reach the hair behind his head. Dispensing with this complex and uncomfortable movement greatly improves the ergonomics of the hairdressing device and avoids any pain for the user. In addition, for shaping the hair arranged on the top of the head, it is not necessary for the user to raise the shoulder and their arm (that is to say, to form a right angle between his arm and his body): by placing the accessory in the second position, the user can reach the top of his head while keeping his arm and shoulder alongside the body.

The ergonomics of the hairdressing device as defined by the invention is also optimized for a user who would use the hairdressing device on a third person, for example for a hairdresser who would perform a hairstyle on a client. In fact, the user can place the accessory in the second position to easily reach the hair located on the top of the head of the person to be styled, while keeping their arm alongside the body, a position which is particularly ergonomic. . In addition, it is then possible for the user to remain at the same height of the person he or she is styling, relieving the user, for example, of having to stand.

Preferably, the accessory is movable between exactly the first position and the second position, that is to say that the accessory has only two possible positions each allowing the rotation of the accessory. In other words, there is no intermediate position allowing the device to function properly between the first position and the second position.

Advantageously, said first position and second position are stable positions and defined by design. In other words, the first position and the second position are pre-existing positions, defined by the designers of the device, in which the accessory is automatically maintained. This ensures that the user can only select the best positions of the device, those which guarantee the best ergonomics, positions which will have been carefully defined in advance by the designers of the device. This is particularly suitable for people new to hairdressing operations. Thus, the user cannot define said first position and second position, he can simply move the accessory between one and the other, the accessory being automatically maintained either in the first position or in the second position . This is particularly interesting for a user who does not have particular knowledge of ergonomics or hairstyles, thus limiting the risk of error for the user. The stability of the accessory alternately in one or the other of said first and second positions ensures the proper maintenance of the accessory in the position chosen by the user (in this case the first or the second) , regardless of the effort applied to the accessory. This therefore avoids any accidental or unwanted movement of the accessory, particularly during hair styling operations where significant forces can be exerted on the accessory, efforts which tend to cause the accessory to move and therefore cause it to leave its position. position.

Advantageously, the second axis forms an angle α different from the right angle with the first axis when the accessory is in the second position. In other words, when the accessory is in the second position, the angle formed between the first axis and the second axis is different from 90°. This helps to improve the ergonomics of using the hairdressing device as explained previously. For example, said angle α is between 100° and 170°, preferably between 130° and 170° and advantageously equal to 150°. Indeed, the designers of the device noticed that these angle ranges were particularly advantageous for optimizing the ergonomics of the hairdressing device, whether for a user using the device on himself or for a user using the device on a third person, as explained previously.

According to an advantageous embodiment, the main body comprises a joint located between and connecting the handle and the accessory. Thus a joint placed between the handle and the accessory allows the user to move the accessory between the first position and the second position as desired and with complete ease. Preferably, the articulation then comprises a first inclined side and a second inclined side, said first inclined side and second inclined side being movable relative to each other so as to move the accessory between said first positions and second position. The use of inclined sides to make the joint provides a robust, reliable, inexpensive and easy-to-use joint.

According to this embodiment, and in the advantageous case where said first and second positions are stable positions, the joint preferably comprises a movable blocking device between a free position, allowing the accessory to move between said first position and second position, and a locked position blocking said accessory in one of said first position or second position (that is to say alternately in one and the other of said first and second position), position having been chosen by the 'user. The blocking device is then advantageously activated by the user when he wishes to move the accessory from the first position to the second position or vice versa. Such a blocking device makes it possible to ensure the automatic maintenance of the accessory in one or other of said first or second positions (that is to say alternately in one and the other of said first and second position) according to the user's wishes, in a safe, reliable and inexpensive manner. In order to improve the intuitive handling of the device, said free position is preferably an unstable position while said locked position is a stable position. This therefore encourages the user to systematically place the accessory either in the first position or in the second position, strongly dissuading him (not to say forbidding him) from placing the accessory in another position since the blocking device will then refuse to lock. This allows the novice user to easily select the best positions for using the the device. This also guarantees that the accessory is maintained either in the first position or in the second position and avoids any unwanted evolution of the accessory: in fact, positive action by the user is necessary on the blocking device to be able to move the accessory from one position to another.

According to one embodiment of the invention, the rotation drive motor of the accessory is located inside said accessory. This embodiment is particularly well suited to the advantageous case where the accessory is hollow. This makes it possible to arrange the rotational drive motor of the accessory outside the main body, and in particular outside the handle, and therefore to reduce the size of the latter, in particular its diameter which further improves the ergonomics of the device.

According to one embodiment of the invention, the hairdressing appliance comprises a device for moving air between an air inlet and an air outlet. Thus, the hairdressing appliance is then advantageously designed to blow air towards the hair in order to ensure drying and/or shaping of the latter. Preferably, the main body comprises the air inlet and the accessory comprises the air outlet. Even more preferably, the handle may comprise the air inlet. The path for the air flow can then be as follows: the air is sucked in by an air inlet, advantageously located at one end of the handle, passes into the main body, then into the accessory, before be evacuated through the air outlet. Advantageously, the air outlet comprises a plurality of holes, which has the effect of uniformly diffusing the air towards the hair.

According to the previous embodiment, the hairdressing appliance comprises an air heating device, advantageously arranged inside the main body, and preferably inside the handle. This then makes it possible to heat the air sucked in by the air inlet in order to blow hot air through the air outlet towards the hair. This allows the hair to be dried and/or styled particularly efficiently and quickly.

Brief description of the drawings

• [ Figure 1 ] There figure 1 is a first perspective view of an apparatus as defined by the invention, this first view essentially showing the top of the apparatus, the apparatus being in a first position.
• [ Figure 2 ] There figure 2 is a second perspective view of the device of the figure 1 , this second view essentially showing the underside of the device, the device being in the first position.
• [ Figure 3 ] There Figure 3 is a view similar to the view of the figure 1 , the device this time being in a second position.
• [ Figure 4 ] There Figure 4 is a view similar to the view of the figure 2 , the device being this time in the second position.
• [ Figure 5 ] There Figure 5 is a side view of the device of the figure 1 , the device being in the first position.
• [ Figure 6 ] There Figure 6 is a side view of the device of the figure 1 , the device being in the second position.
• [ Figure 7 ] There Figure 7 is a view similar to the view of the Figure 6 , in which a hair shaping accessory of the device was dismantled.
• [ Figure 8 ] There figure 8 is a side view and detail of a sub-assembly of the device of the figure 1 , said subassembly being the articulation of the device, said articulation being in the first position.
• [ Figure 9 ] There Figure 9 is a view similar to the figure 8 but with the joint in the second position.
• [ Figure 10 ] There Figure 10 is a view of another sub-assembly of the hairdressing appliance in the second position, said other sub-assembly comprising in particular the articulation of the figures 8 and 9 in the second position.
• [ Figure 11 ] There Figure 11 is a detailed, exploded view of the articulation of the figures 8 and 9 .

Description of embodiments

The embodiment of the invention illustrated by the different figures is an embodiment in which the hairdressing appliance which is the subject of the invention is a blower brush, that is to say, a device combining the functions of drying and brushing hair. More precisely, the device illustrated is a rotating blower brush, that is to say that the device, in addition to being able to blow hot air, has a rotating accessory allowing you to create curls or waves in the hair, as will be detailed later.

As can be seen on the figures 1 to 7 , the hairdressing appliance comprises a main body 1. As is well known to those skilled in the art, this main body 1 forms a housing bringing together the main components of the hairdressing appliance. In particular, the main body 1 comprises an air heating device, such as a heating element for example, but also a device for moving the air, such as for example an electric motor and fan (or propeller) assembly. , which makes it possible to create an air flow between an air inlet 110 and an air outlet 24. This construction is well known to those skilled in the art so that it will not be further detailed here.

The main body 1 also includes an air inlet 110 located at the free end of the main body 1 as can be seen in the figures. Such an air inlet is typically used on “blowing brush” type hairdressing appliances. It is therefore through this air inlet 110 that the air is sucked in by the air moving device, heated by the air heating device, then then extracted from the main body 1 by the end connected to an accessory 2, as will be detailed later. The air inlet 110 typically comprises a grid, advantageously removable, intended to prevent foreign bodies (such as hair for example) from being sucked in by the air movement device.

The main body 1 can be formed of two half-shells assembled together so as to facilitate assembly, disassembly, repair or maintenance operations of the device.

The main body 1 extends longitudinally along a first axis PP' as illustrated by the figures 6 and 7 . As we can see, the main body extends between a free end (that is to say which is not connected to other parts) and an end intended to receive an accessory, as will be detailed by the following. More precisely, the main body 1 has a shape of revolution around the first axis P-P', in particular a cylindrical shape. This makes it possible to combine the ergonomic and reception functions of the different components, as explained previously.

The main body 1 comprises a handle 11 intended to be grasped by the user. Thus, it is through this handle 11 that the user can easily grasp the main body 1 and manipulate the hairdressing appliance. As can be seen on the figures 1 to 7 , the handle 11 is part of the main body 1 and is formed by a zone of reduced diameter of the main body 1 in order to facilitate its grip by the user's hand. Thus, the handle 11 and the main body 1 both extend along the first axis P-P', preferably being coaxial.

The main body 1 comprises a first control device 111 designed to control the air moving device and the air heating device. More precisely, the first control device 111 is a sliding button with several positions, four in this case: an off position, a cold air blowing position (that is to say that the heating device of the air is not activated, only the air movement device being activated), a position corresponding to an intermediate level of heating and air flow (i.e. the heating device and the air moving device are not at full power) and a position corresponding to a maximum level of heating and air flow (i.e. the heating device and the device air movement are at full power).

The main body 1 also includes a second control device 112 which makes it possible to control the rotation of an accessory 2, as will be detailed later. More precisely, the second control device 112 comprises two push buttons arranged side by side, each corresponding to a direction of rotation of the accessory 2: clockwise direction or trigonometric direction. It is then up to the user to select the appropriate direction of rotation according to the hairstyle he wishes to achieve (direction of curls or waves in particular) and according to his direction of use of the hairdressing device.

It can be seen in the figures that the main body 1 is connected to a power cord 3 so as to provide adequate energy to the various components of the hairdressing appliance, in particular the device for moving the air or the air heating device. The power cord 3 is in this case an electrical cord making it possible to supply the components with electrical energy but one could imagine other types of power cords, such as for example a pneumatic cord for supplying air to pneumatic components . We could also imagine, without departing from the scope of the invention, that the hairdressing appliance is powered by an internal source (a battery for example), so that it would then have no power cord 3.

The hairdressing device also includes an accessory 2 intended to come into contact with the hair to shape it. The accessory is removable, as can be seen in the Figure 7 . As can be seen on the figures 1 to 6 , the accessory 2 comprises a contact surface 21 intended to serve as a hair winding surface. More precisely, the contact surface 21 is a surface of revolution, and in particular a cylindrical surface so as to optimize the winding of the hair on the latter. Such a contact surface 21 makes it possible to create curls or waves or even a “brushing” effect on the hair. The contact surface 21 is made of a material which is a good thermal conductor (such as steel or aluminum for example) in order to diffuse the heat from the air towards the hair. This helps to secure the styling of the hair.

The accessory 2 extends longitudinally along a second axis A-A', as can be seen on the figures 6 and 7 . More precisely, the accessory 2 has a form of revolution around the second axis A-A'. Accessory 2 is hollow.

The accessory 2 also comprises a plurality of pins 23 projecting from said contact surface 21. By pins we mean any type of protrusion intended to grip the hair such as for example more or less rigid plastic rods or even tufts of synthetic or natural hair (boar hair for example). As can be seen on the figures 1 to 6 said plurality of pins 23 is regularly distributed on the contact surface 21 in rows. This improves the grip of the hair but also the good winding of the hair and finally the good release of the curl at the end of shaping.

The accessory 2 also includes an air outlet 24. The air outlet 24 then comprises a plurality of holes as can be seen on the figures 1 to 6 . Said plurality of holes is then regularly distributed over the contact surface 21, in particular by being arranged in the form of rows between the pins 23. This makes it possible to properly diffuse the air extracted from the hairdressing appliance inside the hair, gently and evenly. The diameter of each of the holes of the air outlet 24 decreases according to the direction of the air flow, that is to say decreasing from the main body 1 towards the free end of the accessory 2. This contributes to maintain a relatively constant flow of air emitted despite the increasing distance from the air inlet 110.

The accessory 2 includes a gripping tip 22 intended to be grasped by the user when using the hairdressing appliance. Said gripping tip 22 is made of insulating material so as not to transmit the heat from the accessory 2 to the user's fingers. The gripping tip 22 can be mounted to rotate freely relative to the accessory 2 in order to remain stationary in the user's fingers despite the rotation of the accessory 2. This makes it possible to improve the comfort of use of the the device but also the precision of the styling operation. The gripping end 22 also allows the assembly and disassembly operations of the accessory, as is known as such.

The hairdressing appliance also comprises a motor for driving the accessory 2 in rotation around said second axis A-A' so that the hair can be wound around said accessory 2. More precisely the motor is an electric motor, as is clearly known as such.

The motor for driving the accessory 2 in rotation is located inside said accessory 2. In other words, the motor for rotating the accessory 2 is offset from the main body 1: the motor for driving it in rotation rotation the accessory 2 is located outside the main body 1. This allows on the one hand to save space inside the main body 1 and therefore for example to significantly reduce the diameter of the latter (which ultimately makes it possible to reduce the diameter of the handle 11 in the mode of illustration illustrated), and on the other hand, to improve the distribution of masses within the hairdressing appliance. Indeed, according to this embodiment, the hairdressing appliance comprises a first motor inside the main body 1 (the drive motor of the air moving device) and a motor inside of accessory 2 (the rotation drive motor of the latter). The ergonomics and comfort of use of the hairdressing device are therefore improved.

More precisely, as we can see in the Figure 7 , the hairdressing appliance comprises an accessory support 4 which itself includes the motor to rotate the accessory 2. The accessory 2 is therefore arranged around the accessory support 4.

The accessory support 4 includes a proximal part 41 connected to the main body 1. As illustrated in the Figure 7 or the Figure 10 , the proximal part 41 comprises an air guiding device 411. The air guiding device 411 may in particular comprise fins, as illustrated, which then contribute to straightening the air flow coming from the placing device. movement of the air, so as to create a laminar air flow. Alternatively, the air guiding device 411 may include arches.

The accessory support 4 comprises a distal part 42 located opposite the proximal part 41. The distal part 42 is a free part, that is to say it is not connected to the main body 1 as can be seen on the figures 7 Or 10 . As can be seen on the Figure 10 , the distal part 42 comprises a rotation drive device 421 of the accessory 2. More precisely, the rotation drive device 421 of the accessory 2 comprises grooves intended to correspond with a complementary receiving device located at inside the accessory 2, as is known to those skilled in the art. The distal part 42 also comprises an assembly and holding device 422 for the accessory 2 which itself comprises by example a groove. The groove is then intended to correspond with a complementary assembly and holding device located inside the accessory 2 as is known to those skilled in the art. The assembly and holding device 422 and the complementary assembly and holding device of the accessory also allow the user to disassemble the accessory, as is known as such.

Thus, the rotation drive motor of the accessory 2 is mounted inside the accessory support 4, the output shaft of said motor is connected to the rotation drive device 421 of the distal part 42 of the accessory support 4, said rotation drive device 421 itself being connected to the accessory 2 so as to transmit the rotational movement of said motor to the accessory 2. The proximal part 41 is also connected to the motor d rotational drive of the accessory 2 to the extent that the latter generally houses the electrical cables powering said motor.

As can be seen in the different figures, the main body 1 also includes a joint 12. The joint 12 is then located between the handle 11 and the accessory 2. More precisely the joint 12 is connected to the accessory support 4 and is arranged at one end of the main body 1. The articulation 12 also makes it possible to connect the handle 11 and the accessory 2, or more precisely the accessory support 4. By articulation we mean any device allowing at least an angular movement between two parts connected to each other by said articulation 12, in this case, between the handle 11 and the accessory support 4, and therefore finally the accessory 2.

THE figures 8 to 11 illustrate in detail an example of a joint used in the hairdressing device of the preceding figures. The articulation 12 comprises a first inclined section 121, that is to say a first part, one face of which is inclined relative to the first axis P-P'. The articulation 12 also includes a second inclined section 122, that is to say a second part, one face of which is inclined relative to the second axis A-A'. Said first inclined face 121 and second inclined face 122 are parts of revolution, in particular cylinder portions, beveled cylinders, as illustrated.

The first inclined section 121 extends longitudinally along the first axis P-P' and around the first axis P-P'. The second inclined section 122 extends longitudinally along the second axis A-A' and around the second axis A-A'.

The first inclined part 121 is connected to the handle 11, as can be seen on the figures 6 and 7 , while the second inclined panel 122 is connected to the accessory support 4, more precisely to the proximal part 41 of the latter. Thus, the second inclined section 122 is connected (indirectly) to the accessory 2.

Said first and second inclined sections 121, 122 are movable relative to each other, more particularly in a plane support movement, as illustrated by the figures 8, 9 And 11 . Indeed, as we can see in the Figure 11 , the first inclined face 121 comprises a first plane 1211 and the second inclined face 122 comprises a second plane 1221. Thus, by setting said second inclined face 122 in motion relative to the first inclined face 121 (or vice versa), it is- that is to say by creating a relative movement between said first inclined surface 121 and second inclined surface 122, the second plane 1221 will move on the first plane 1211 (or vice versa). As can be seen on the Figure 11 , said first plane 1211 and second plane 1221 form disk portions.

Said first inclined side 121 and second inclined side 122 are hooked to one another in order to maintain the joint 12 in the form of a unitary part. Indeed, as we can see in the Figure 11 , the first inclined face 121 comprises a guiding and hooking device 1212 while the second inclined face 122 comprises a complementary guiding and hooking device 1222.

More precisely, the guiding and hooking device 1212 comprises a plurality of tongues projecting from the first plane 1211 towards the second plane 1221 of the second inclined surface 122. The complementary guiding and hooking device 1222 comprises a groove, or a groove, made on the second plane 1221, inside the second inclined face 122. Thus, said groove, or groove, receives said plurality of tongues. Each of the tabs has a hook at its free end so as to remain engaged in the groove or groove, as can be seen on the Figure 11 . So, the guiding and hooking device 1212 is designed to penetrate at least partially inside the complementary guiding and hooking device 1222, which makes it possible to ensure the assembly between the first inclined side 121 and the second side inclined 122. Thus, the complementary guiding and hooking device 1222 is designed to receive the guiding and hooking device 1212 so as to ensure blocking in translation but a degree of freedom in rotation. Indeed, the plurality of tongues of the guide and hooking device 1212 can slide inside the groove of the complementary guide and hooking device 1222, without however being able to be extracted therefrom, thanks to the hooks.

The joint 12 can take at least two positions: a first position illustrated in figure 8 and a second position illustrated in Figure 9 . We then understand that the first position of the articulation 12 of the figure 8 corresponds to the first position of accessory 2 of the figure 1 or 2 , while the second position of the articulation 12 of the Figure 9 corresponds to the second position of the accessory of the figure 3 or 4 .

In the first position, the entire articulation 12 is oriented along the first axis P-P', that is to say that the first inclined face 121 and the second inclined face 122 are both aligned on the first axis P-P'. In other words, the first inclined face 121 and the second inclined face 122 extend longitudinally along and around the first axis P-P'. In the first position, the first plane 1211 and second plane 1221 are arranged in a staggered or “head-to-tail” pattern.

In the second position, part of the joint 12 is oriented along the first axis P-P' and another part of the joint 12 is oriented along the second axis A-A'. Indeed, the first inclined section 121 extends along and around the first axis P-P' while the second inclined section 122 extends along and around the second axis A-A'. In the second position, the first plane 1211 and second plane 1221 are not arranged staggered or “head to tail”.

To move the articulation 12 from the first position to the second position, it is then necessary to rotate the second inclined face 122 relative to to the first (or vice versa) around the first axis P-P', which will have the effect of orienting the second inclined face 122 (or the first inclined face 121) along the second axis AA' instead of the first axis P-P '. Indeed, as explained previously, the only degree of freedom existing between said first inclined side 121 and second inclined side 122 being a rotation, and, taking into account said first plane 1211 and second plane 1221, both inclined, the articulation 12 will then leave its straight position to form an elbow, as we can see in the figures 9 And 10 .

Thus, the joint 12 being connected on the one hand to the accessory 2 and on the other hand to the handle 11, the joint 12 allows the accessory 2 to be movable between the first position and the second position, that is to say, allows the accessory 2 to be oriented either along the first axis P-P', or along the second axis A-A', as can be seen on the figures 6 and 7 notably. The accessory 2 can therefore, depending on the wishes of the user who will handle the device, be either in the axis of the handle 11 or bent relative to the handle 11.

As shown in the Figure 11 , the joint 12 further comprises a locking device 123. The latter is then designed to block the joint 12 in the first position or in the second position, that is to say to hold the joint 12 in the one or the other of the positions, avoiding any untimely movement of the joint 12. The blocking device 123 is movable between two positions: a free position, allowing the accessory 2 to move between said at least first position and second position, and a locked position blocking said accessory 2 in one of said first position or second position.

There Figure 11 illustrates in detail this blocking device 123. The latter thus comprises a third control device 1231, in this case a push button, intended to be manipulated by the user of the hairdressing appliance. The third control device 1231 projects radially from the first inclined side 121, so that it can easily be operated by the thumb or index finger of the user's hand which holds the hairdressing appliance by the handle 11 as can be understand it about figures 1 to 4 .

The blocking device 123 also includes a lug 1232 connected to the third control device 1231. The lug 1232 projects longitudinally from the first plane 1211 of the first inclined surface 121, in the same direction as the guiding and hooking device 1212. The lug 1232 is therefore arranged perpendicular to the third control device 1231. Thus, the lug 1232 is driven by a translational movement, vertical with reference to the figures, when the third control device 1231, in this case the push button, is activated by the user.

The blocking device 123 also includes a first notch 1233 and a second notch 1234 each made in the second inclined face 122. Said first notch 1233 and second notch 1234 are diametrically opposed as can be seen in the Figure 11 . Each of said first notch 1233 and second notch 1234 is then designed to alternately receive the lug 1232.

The lug 1232 will then prevent the relative rotation between the first inclined face 121 and second inclined face 122, thus ensuring that the joint 12 is maintained in position, whatever the force exerted on the accessory. Thus, when the lug 1232 is placed in the first notch 1233, the joint 12 is blocked in the first position, that is to say that the entire joint 12 is oriented along the first axis P-P', that is to say that the accessory 2 and the main body 1 are aligned along the first axis P-P'. Said first inclined side 121 and second inclined side 122 are then arranged staggered or “head to tail” as explained previously. On the other hand, when the lug 1232 is placed in the second notch 1234, the articulation 12 is blocked in the second position, that is to say that the second inclined face 122 is oriented along the second axis A-A' , that is to say that the accessory 2 is oriented along the second axis A-A' and is therefore not aligned with the first axis P-P' of the main body 1.

By actuating the third control device 1231, the lug 1232 is moved in translation, the lug 1232 is found inside the complementary guiding and hooking device 1222, in this case inside the groove , which allows relative rotation between the first inclined side 121 and second side inclined 122. It is then possible to rotate the joint 12 so as to move it from the first position to the second position or vice versa.

The blocking device 123 also includes an elastic return device, a spring for example (not illustrated), in the locked position. In other words, the free position is an unstable position while the locked position is a stable position. Thus, without user action on the third control device 1231, the joint 12 is blocked, which prevents any unwanted movement of the latter, and therefore any unwanted movement of the accessory 2 relative to the main body 1. In addition, the elastic return device ensures automatic blocking of the joint 12 in one or other of the first or second positions as soon as the lug 1232 arrives opposite one or the other of the first notch 1233 or second notch 1234, that is to say as soon as the articulation 12 arrives in one or the other of the first or second position, that is to say as soon as the accessory 2 arrives in the 'either of the first or second position. This makes using joint 12 more intuitive.

As can be seen on the Figure 11 , the joint 12 comprises an air channel 124 designed to allow the air flow to pass from the air inlet 110 to the air outlet 24, the air being set in motion by the setting device. air movement, as explained previously. More precisely, the air channel 124 comprises a tube 1241 which delimits said first planes 1211 and second plane 1221. In addition, the air channel 124 comprises a plurality of walls 1242, arranged radially inside the tube 1241. Said plurality of walls 1242 thus forms different channels which make it possible to properly direct the air flow, in particular in a longitudinal direction. The walls 1242 make it possible in particular to reduce, or even eliminate, the rotating or swirling component of the air flow leaving the air movement device.

• une première position dans laquelle lesdits deuxième axe A-A' et premier axe P-P' forment entre eux un angle plat, c'est-à-dire une position dans laquelle l'accessoire 2 se situe dans l'alignement du corps principal 1 comme on peut le voir sur les figures 1, 2 et 5 ;
• une deuxième position dans laquelle lesdits deuxième axe A-A' et premier axe P-P' forment entre eux un angle différent de l'angle plat, c'est-à-dire une position dans laquelle l'accessoire 2 forme un coude avec le corps principal 1 comme on peut le voir sur les figures 3, 4 et 6.

We therefore understand, in the embodiment illustrated by the different figures, that the accessory 2 can move between said first position and second position, in particular thanks to the relative mobility between the first inclined side 121 and second inclined side 122. accessory 2 is thus mobile between two positions:

• a first position in which said second axis AA' and first axis PP' form a flat angle between them, that is to say a position in which the accessory 2 is located in alignment with the main body 1 as can be see it on the figures 1, 2 And 5 ;
• a second position in which said second axis AA' and first axis PP' form between them an angle different from the flat angle, that is to say a position in which the accessory 2 forms an elbow with the main body 1 as can be seen on the figures 3, 4 And 6 .

More precisely, as shown by figures 7 And 10 , in the second position, the accessory support 4 is oriented along the second axis A-A', that is to say it forms an angle with respect to the main body 1.

Thus, in particular thanks to the mobility of the articulation 12 and the accessory support 4, each of the first and second positions allows the rotation of the accessory 2 by the motor driving the rotation of the accessory arranged at the inside the accessory holder 4.

As explained previously, according to the construction retained in the embodiment illustrated and detailed previously, the joint 12 is designed to be movable between exactly two positions: the first position or the second position. Consequently, the accessory 2 is movable between exactly the first position and the second position. In other words, the accessory 2 is designed to operate normally, that is to say be able to be rotated by the accessory drive motor, only in these two positions. This makes it possible to limit the number of scenarios for using the hairdressing device, which simplifies the use of the device for the user while providing an ergonomic device. This also limits the costs of designing and manufacturing the hairdressing device. Said first position and second position are stable positions defined by design, which prevents the user from placing the accessory 2 in an inappropriate position (in fact, there is no possible blocking in an intermediate position) and simplifies its handling of the hairdressing device, while limiting the design and manufacturing costs of the device.

We could however imagine, without departing from the scope of the invention, that the accessory 2 could evolve between three, four, five or a plurality of different positions, each of them allowing the rotation of the accessory 2 around the second axis A-A'. We could also imagine that accessory 2 could move between, not different predefined positions, but an infinity of positions, that is to say that accessory 2 could operate in any position. This will for example be possible with a flexible joint, including for example a cardan joint.

As can be seen in the illustrated embodiment, the second axis AA' forms an angle α different from the right angle with the first axis PP' when the accessory 2 is in the second position. More precisely, the angle α is equal to 150° as can be seen in the Figure 7 . This is the angle formed between the main body 1, or the handle 11, and the accessory support 4, or the accessory 2 itself. It was in fact determined that this value made it possible to offer a very ergonomic use for the user, in particular for the user who would use the hairdressing device on himself (user styling his hair alone) and who would like to style the back of his head and/or possibly the sides of his head. However, it was also determined that an angle α of between 130° and 170° or even between 100° and 170° made it possible to obtain ergonomic use for the user.

Claims (15)

1. Hair-styling appliance comprising:

   - a main body (1) including a handle (11) extending longitudinally along a first axis (P-P'),

   - an accessory (2) intended to come into contact with the hair so as to style same, said accessory (2) extending longitudinally along a second axis (A-A'),

   - a drive motor for rotating the accessory (2) about said second axis (A-A') so that the hair can be wound around said accessory (2),

   characterised in that said accessory (2) is movable between at least two position, each allowing the rotation of the accessory (2) about said second axis (A-A'):

   - a first position in which said second axis (A-A') and the first axis (P-P') form a straight angle therebetween,

   - a second position in which the second axis (A-A') and the first axis (P-P') form an angle different from the straight angle therebetween.
2. Hair-styling appliance according to the preceding claim, in which the accessory (2) is movable between precisely the first position and the second position.
3. Hair-styling appliance according to any one of the preceding claims, in which said first position and second position are stable positions and defined by design.
4. Hair-styling appliance according to any one of the preceding claims, in which the second axis (A-A') forms an angle α different from the straight angle with the first axis (P-P') when the accessory (2) is in the second position.
5. Hair-styling appliance according to the preceding claim, in which said angle α is between 100° and 170°, preferably between 130° and 170° and advantageously equal to 150°.
6. Hair-styling appliance according to any one of the preceding claims, in which the main body (1) comprises a hinge (12) located between, and connecting, the handle (11) and the accessory (2).
7. Hair-styling appliance according to the preceding claim, in which the hinge (12) comprises a first inclined section (121) and a second inclined section (122), said first inclined section (121) and second inclined section (122) being movable against one another so as to push the accessory (2) forward between said first position and second position.
8. Hair-styling appliance according to claim 6 or 7 and claim 3, in which the hinge (12) comprises a blocking device (123) which is movable between a free position, allowing the accessory (2) to push forward between said first position and second position, and a locked position locking said accessory (2) in one of said first position or second position.
9. Hair-styling appliance according to the preceding claim, in which said free position is an unstable position, while said locked position is a stable position.
10. Hair-styling appliance according to any one of the preceding claims, in which the motor for rotating the accessory (2) is located inside said accessory (2).
11. Hair-styling appliance according to any one of the preceding claims, in which the hair-styling appliance comprises a device for moving air between an air inlet (110) and an air outlet (24).
12. Hair-styling appliance according to the preceding claim, in which the main body (1) comprises the air inlet (110) and the accessory (2) comprises the air outlet (24).
13. Hair-styling appliance according to the preceding claim, in which the air outlet (24) comprises a plurality of holes.
14. Hair-styling appliance according to any one of claims 11 to 13, in which the hair-styling appliance comprises an air heating device.
15. Hair-styling appliance according to any one of the preceding claims, in which the accessory (2) comprises a contact surface (21) intended to serve as a hair winding surface and a plurality of pins (23) projecting from said contact surface (21).

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