FR3122068A1 - hairdressing device with adjustable accessory and device for locking the accessory - Google Patents

Abstract

Hairdressing appliance comprising a main body (1) comprising a handle (11) extending longitudinally along a first axis (P-P'), and an accessory (2) intended to come into contact with the hair, said accessory (2) extending longitudinally along a second axis (A-A'), and said accessory (2) being movable between at least two functional positions: a first position in which said second axis (A-A') and first axis (P- P') form between them a flat angle, a second position in which said second axis (A-A') and first axis (P-P') form between them an angle different from the flat angle, said first and second position being stable positions defined by design, the main body (1) comprising an articulation (12) comprising a first part (121) integral with the handle (11) and a second part (122) movable between said first and second positions, said second part (122) comprising a movable blocking device ent re a free position, allowing the accessory (2) to move between said first position and second position, and a locked position blocking said accessory (2) in one of said first position or second position, position having been chosen by the user. Figure for the abstract: Fig. 6

Description

hairdressing device with adjustable accessory and device for locking the accessory

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

More specifically, 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 s extending longitudinally along a second axis, a motor for driving the accessory in rotation around said second axis so that the hair can be wrapped around said accessory and/or an air movement device making it possible to create a airflow between an air inlet and an air outlet, the main body comprising the air inlet at a free end and the accessory comprising the air outlet.

This type of device is commonly called a rotating and/or blowing brush.

State of the art

Hairdressing appliances which make it possible to relax the hair and/or give volume and waves to the hair are well known. These devices are generally equipped with a rotating accessory forming a mandrel on which the hair can be shaped or even rolled up. The mandrel is generally heated (for example by being heated by hot air) which makes it possible to freeze the shaping of the hair. These devices can blow hot air, on the one hand to heat the accessory and on the other hand the hair, as is for example the case of the device described by the applicant's patent EP2131695, which forms a rotating blower brush.

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

Indeed, when the user wants to shape the hair located at the back of his head, he must perform a complex movement with his arm, his forearm and his wrist, to correctly position the device behind his head. The movement in question, then the holding of the device in position, can then prove to be delicate, non-intuitive and above all uncomfortable.

Indeed, in order to position the hairdressing device of the prior art correctly behind his head, the user must raise his arm at shoulder level, extend it to the side, while completely bending his elbow to bring his forearm and his hand behind his head. Finally, the user must generally bend his wrist to orient the accessory of the hairdressing device in the correct position with respect to his hair.

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

In order to solve this problem, it has been proposed in the patent applications PCT/EP2020/079136 and PCT/EP2020/079137 which are not yet published, a hairdressing device of the rotating brush and/or blower type whose accessory can be oriented with respect to the handle, so as to form a bend, that is to say an angle different from the flat angle. This type of device perfectly meets the needs of consumers in terms of gestures and hairstyle ergonomics. On the other hand, it remains perfectible when the user wishes to orient the accessory in relation to the handle. Indeed, the user will position a first hand simultaneously on the handle and on the locking button of the accessory, then risks, with his other hand, to directly grasp the accessory to orient it and thus form the desired elbow. . However, the accessory may be rotating and/or hot. This therefore results in a risk of injury to the user or at least discomfort.

There is therefore a need to improve existing devices, particularly in terms of their ergonomics, safety and comfort of use.

The present invention aims to overcome the aforementioned drawbacks.

An object of the invention is to provide a hairdressing device which is particularly ergonomic to use, regardless of the zone of the head to be styled.

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

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

Another object of the invention is to provide a hairdressing appliance which is particularly comfortable to use.

Another object of the invention is to provide a hairdressing appliance which is particularly safe.

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

Another object of the invention is to provide a hairdressing appliance which is particularly economical to design and manufacture.

Another object of the invention is to provide a hairdressing appliance which is particularly easy to repair.

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

These objectives are achieved using a hairdressing device comprising:
- a main body comprising a handle extending longitudinally along a first axis, and
- an accessory intended to come into contact with the hair to shape the latter, said accessory extending longitudinally along a second axis, and
- a motor for driving the accessory in rotation around said second axis so that the hair can be wound around said accessory and/or
- an air movement device for creating an air flow between an air inlet and an air outlet, the main body comprising the air inlet at a free end and the accessory including the air outlet.

Thus several variants are provided by the invention: in a first variant, the hairdressing appliance comprises a hairdressing accessory which is rotatable and motorized with respect to the main body. The hairdressing device then forms what is commonly called a rotating brush. In a second variant, the device comprises a device for moving the air, such as for example a motor-fan assembly located in the main body, which is well known to those skilled in the art. The accessory is then designed to eject, that is to say blow, the air generated in the main body directly in contact with the hair. The hairdressing device then forms what is commonly called a blower brush. In a third variant, the device combines the two previous variants and thus includes a hairdressing accessory which is both rotary (motorized) and blowing, the hairdressing device then forms what is commonly called a rotating blower brush. These three variants have the common problem that the direct manipulation of the hairdressing accessory by the hand of the user can present risks: in fact, when handling the hairdressing accessory, it can be in spinning and/or hot.

By handle is meant for example any element allowing a user to grasp and manipulate the hairdressing device, 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 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 that it can be transported and oriented in space according to the will of the user.

Preferably, the accessory has a shape of revolution, and advantageously a cylindrical shape, which makes it possible to maximize the surface coming into contact with the hair in order to shape it. In addition, such a shape facilitates the rotation of 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 that is to say to separate the accessory and the handle, for example to replace it with another accessory of different size and/or shape. This allows the user to choose the hairstyle he is going to create on his hair as he pleases, in particular by being able to choose the diameter of the curls or waves he is going to create thanks to the accessory. This can also allow the user to choose the most suitable accessory according to the nature of his hair.

Advantageously, the accessory comprises a contact surface intended to serve as a surface for rolling up the hair and a plurality of barbs (or tufts of hair) projecting from said contact surface. Said plurality of barbs makes it possible to grip the hair and, advantageously 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 roll up automatically under the effect of the rotation of the accessory.

Advantageously, the rotation drive motor of the accessory is an electric motor. However, it is conceivable, without departing from the scope of the invention, that the expression “motor” could designate a motor moved by another energy, such as for example pneumatic, magnetic or even human energy.

• 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 functional positions, that is to say that each allows rotation of the accessory around said second axis in the case of the first variant and the third variant, and that each of the positions allows the ejection of the air in the case of the second or third variant. The accessory is then mobile between:

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

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 on 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 coincident) or parallel. Thus, in this first position, the accessory and the handle are either aligned (one being in the 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 coincident, nor parallel. Thus, in this second position, the accessory and the handle form an elbow, one being inclined with respect 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 he pleases with respect to the handle by which he holds the hairdressing device: the accessory is therefore orientable .

This remarkably improves the ergonomics of the hairdressing device, in particular for a user who would use the hairdressing device on himself (a user who therefore does his hair alone). Indeed, the user can use the hairdressing device that 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 appliance that is the subject of the invention in the second position to perform the shaping of 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 his arm" (i.e. to raise his shoulder in order to deploy his arm perpendicular to his body, while folding his forearm completely back) to reach the hair arranged behind his head. The dispensation of 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 his head, it is not necessary for the user to raise the shoulder and his 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 his shoulder along 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. Indeed, 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 his arm along the body, a position which proves to be particularly ergonomic. . In addition, it is then possible for the user to remain at the same height of the person he is combing, dispensing the user, for example, from 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 and/or the blowing of the air. In other words, there is no intermediate position authorizing correct operation of the device between the first position and the second position.

Advantageously, said first position and second position are stable positions 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 guarantees that the user can only select the best positions of the device, those that guarantee the best ergonomics, positions that 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 any particular knowledge of ergonomics or hairdressing, thus limiting the risk of error for the user. The stability of the accessory alternately in one and the other of said first and second position 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 force applied to the accessory. This therefore avoids any accidental or unwanted movement of the accessory, in particular during hair styling operations where significant forces can be exerted on the accessory, forces 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 contributes to improving the ergonomics of use of the hairdressing device as explained above. 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 have noticed that these ranges of angles were particularly advantageous for optimizing the ergonomics of the hairdressing device while maintaining excellent hairdressing performance, whether for a user using the device on itself or for a user using the device on a third person, as explained above.

According to the invention, the main body comprises a joint located between, and connecting, the handle and the accessory. Thus a joint arranged between the handle and the accessory allows the user to move the accessory between the first position and the second position as he pleases and with ease.

More precisely, the articulation comprises a first part secured to the handle, that is to say fixed to and fixed with respect to the handle. The joint also comprises a second movable part between said first and second positions. Either way, the joint can be a part in its own right, that is to say a part or a set of parts arranged between the handle and the accessory, or be formed directly by the handle on the one hand and the accessory on the other hand. Preferably, said first part then forms a first inclined face and the second part forms a second inclined face, said first inclined face and second inclined face being movable relative to each other so as to cause the accessory to evolve. between said first position and second position. The use of sloping sides to make the articulation makes it possible to have a robust, reliable, inexpensive and easy-to-use articulation.

The joint, and in particular said second part, comprises a locking device movable between a free position, allowing the accessory to move between said first position and second position, and a locked position locking 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. In other words, the blocking device is embedded on the mobile part of the joint (the second part). The blocking device is then integral with the second pin. This allows the user to manipulate the movable part of the joint directly by the locking device, and not by the accessory, thus avoiding any risk of injury related to direct manipulation of the accessory which may be in spinning and/or hot.

Advantageously, the locking device comprises a third control device designed to be actuated by at least one finger of the user when he wishes to move the accessory from the first position to the second position or vice versa. Preferably, the locking device projects radially from the second part, that is to say it extends in a direction perpendicular to the second axis.

Preferably, the third control device is designed to be actuated by two fingers of the user, for example by the thumb and the index finger. For example, the third control device comprises two diametrically opposed push buttons. Advantageously, the blocking device is arranged at a distance from the accessory, it is therefore separate from the accessory, while being integral with the accessory. Thus, thanks to one and/or other of these characteristics, the user knows precisely where to place his fingers when he wishes to orient the accessory in relation to the handle, which dissuades him from directly handling the accessory in rotating and/or hot, thus avoiding any risk of injury. The safety and ergonomics of the hairdressing appliance are therefore improved.

Such a locking 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 will of the user, in a safe, reliable and inexpensive manner. In order to improve the intuitiveness of handling 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 prohibiting him) from placing the accessory in another position since the locking device will then refuse to lock up. This allows the novice user to easily select the best positions for using the device. This also guarantees that the accessory is maintained either in the first position or in the second position and avoids any undesired movement of the accessory: in fact, a positive action by the user is necessary on the locking device in order 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 in particular particularly well suited in the advantageous case where the accessory is hollow and cylindrical. This makes it possible to arrange the motor for driving the accessory in rotation 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 device ergonomics. In addition, this makes it possible to drive the accessory directly in rotation, without having to pass a transmission inside the joint.

According to a variant of the invention, the hairdressing appliance comprises a device for moving the air between an air inlet and an air outlet. Thus, the hairdressing appliance is then advantageously designed to blow air in the direction of, and advantageously in contact with, the hair in order to ensure the drying and/or shaping of the latter. In this variant, the main body includes the air inlet and the accessory includes the air outlet. More preferably still, 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 discharged through the air outlet. Advantageously, the air outlet comprises a plurality of holes (or orifices), which has the effect of uniformly diffusing the air in the direction of 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 in the direction of the hair. This makes it possible to dry and/or shape the hair in a particularly efficient and rapid manner. This also heats the contact surface of the accessory and therefore improves the shaping of the hair.

Brief description of figures

The is a first perspective view of a device as defined by the invention, this first view essentially showing the top of the device, the device being in a first position. Part of the accessory's pins are hidden.

The is a second perspective view of the device from the , this second view essentially showing the underside of the device, the device being in the first position. Part of the accessory's pins are hidden.

The is a view similar to the view of the , the apparatus being this time in a second position.

The is a view similar to the view of the , the device being this time in the second position.

The is a side view of the device from the , the apparatus being in the first position.

The is a side view of the device from the , the apparatus being in the second position.

The is a view similar to the view of the , in which a hair-shaping attachment of the apparatus has been disassembled.

The is a side and detail view of a subassembly of the apparatus of the , said sub-assembly being the joint of the device, said joint being in the first position. Some parts have been hidden to reveal the construction of said subset.

The is a view similar to the but with the joint in the second position.

The is a view of an embodiment of another subassembly of a hairdressing appliance according to the invention in the first position, said other subassembly comprising in particular a joint and an accessory support.

The is a detail view of the in which certain parts of the joint have been masked so as to reveal the blocking device.

The is a detail and exploded view of the first and second parts of the joint of Figures 10 and 11.

The embodiment of the invention illustrated by the various figures is an embodiment in which the hairdressing device that is the subject of the invention is a blower brush, that is to say, a device combining the functions of drying and hair brushing. 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 motorized rotating accessory allowing curls or curls to be made. waves in the hair, as will be detailed later.

As can be seen in Figures 1 to 7, the hairdressing device comprises a main body 1. As is well known to those skilled in the art, this main body 1 forms a box grouping together the main components of the device. hairstyle. 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 hairdressing appliances of the “blower brush” type. It is therefore through this air inlet 110 that the air is sucked in by the air movement 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 to each other so as to facilitate the operations of assembly, disassembly, repair or maintenance of the device.

The main body 1 extends longitudinally along a first axis P-P' as illustrated by FIGS. 6 and 7. As can be seen, the main body extends between a free end (that is to say which is not connected to other parts) and one end intended to receive an accessory, as will be detailed later. 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 various components, as explained above.

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

The main body 1 includes a first controller 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/or air flow (that is to say that the device heater and the air moving device are not at full power) and a position corresponding to a maximum level of heating and airflow (i.e. the heater and the air movement device 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, and therefore the winding of the hair, as is known as such. More precisely, the second control device 112 comprises one or more push buttons.

It can be seen in the figures that the main body 1 is connected to a power cord 3 so as to supply adequate energy to the various components of the hairdressing device, in particular the device for setting the air in motion, the air heating device or even a motor for driving the accessory 2 in rotation. 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 a pneumatic cord for supplying air to pneumatic components. One could also imagine, without departing from the scope of the invention, that the hairdressing appliance be powered by an internal source (a battery for example), so that it would then have no power cord 3.

The hairdressing appliance also comprises an accessory 2 intended to come into contact with the hair to shape the latter. The accessory is removable, as can be seen in the . As can be seen in Figures 1 to 6, the accessory 2 comprises a contact surface 21 intended to serve as a surface for rolling up the hair. 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 in fact makes it possible to create curls or waves or else 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 fix the styling of the hair well.

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

The accessory 2 also comprises a plurality of pins 23 protruding from said contact surface 21. By pins is meant 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 in Figures 1 to 6 said plurality of pins 23 is regularly distributed over the contact surface 21 in rows. Said plurality of pins 23 projects radially from the accessory. This improves the grip of the hair but also the good rolling of the latter and finally the good release of the curl at the end of the shaping.

The accessory 2 also comprises an air outlet 24. The air outlet 24 then comprises a plurality of holes or orifices as can be seen in FIGS. 1 to 6. Said plurality of holes is then regularly distributed over the surface contact 21, in particular by being arranged in the form of rows between the spikes 23. uniform. 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 maintain a relatively constant emitted airflow despite the increasing distance from the air inlet 110.

The accessory 2 comprises a gripping endpiece 22 intended to be gripped by the user when using the hairdressing device. Said gripping tip 22 is made of insulating material so as not to transmit the heat from the accessory 2 to the fingers of the user. The gripping piece 22 can be mounted free to rotate relative to the accessory 2 in order to remain stationary in the fingers of the user despite the rotation of the accessory 2. This makes it possible to improve the comfort of use of the device but also the precision of the styling operation. The gripping tip 22 also allows the mounting and dismounting 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 well known as such.

The motor for driving the accessory 2 in rotation is located inside said accessory 2. In other words, the motor for driving the accessory 2 in rotation is remote from the main body 1: the motor for driving the 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 finally makes it possible to reduce the diameter of the handle 11 in the illustrated embodiment), and on the other hand, to improve the distribution of the masses within the hairdressing device. Indeed, according to this embodiment, the hairdressing appliance comprises a first motor inside the main body 1 (the motor driving the device for moving the air) and a motor inside of accessory 2 (the latter's rotational drive motor). The ergonomics and comfort of use of the hairdressing appliance are therefore improved.

More specifically, as can be seen in the , the hairdressing appliance comprises an accessory support 4 which itself comprises the motor for driving the accessory 2 in rotation. The accessory 2 is therefore arranged around the accessory support 4.

The accessory support 4 comprises a proximal part 41 connected to the main body 1. As illustrated in the or the , the proximal part 41 comprises an air guide device 411. The air guide device 411 may in particular comprise fins, as illustrated, which then contribute to straightening the flow of air from the positioning device. air movement, so as to create a laminar air flow. Alternatively, the air guide 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 in Figures 7 or 10. As can be seen in Figure , the distal part 42 comprises a rotation drive device 421 of the accessory 2. More specifically, the rotation drive device 421 of the accessory 2 comprises splines 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 a device 422 for assembling and holding the accessory 2 which itself comprises for 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 rotary drive device 421 being itself 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 of rotational drive of the accessory 2 insofar as the latter generally houses the electric cables supplying said motor.

As can be seen in the various 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 is meant any device allowing at least an angular displacement 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.

Figures 8 to 12 illustrate in detail joints that can be used in a hairdressing appliance according to the invention. The joint 12 comprises a first part 121 secured to the handle 11 as can be seen in Figures 8 and 9. In other words the first part 121 is mounted on the handle 11 and is fixed relative to the handle 11 More specifically, as can be seen in Figures 8 and 9, the first part 121 is constituted by one end of the handle 11, in this case by the non-free end opposite the free end forming the inlet air 110. The first part 121 forms a first inclined face, that is to say a first piece, one face of which is inclined (it is neither perpendicular nor parallel) with respect to the first axis P-P'. The joint 12 also includes a second part 122 intended to receive the accessory 2 as can be seen in Figures 6 and 7. More specifically, as can be seen in Figures 10 and 11, the second part 122 forms a second inclined face, that is to say a second part, one face of which is inclined (it is neither perpendicular nor parallel) with respect to the second axis A-A'. Said first inclined face and second inclined face are parts of revolution, in particular cylinder portions, bevelled cylinders, as illustrated. Said first inclined face and second inclined face are thus movable with respect to each other so as to move the joint 12 and therefore the accessory 2 between a first position and a second position.

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

The first part 121 is connected to the handle 11, as can be seen in Figures 6 to 9, while the second part 122 is connected to the accessory support 4, more precisely to the proximal part 41 of the latter. Thus, the second part 122 is connected (indirectly) to the accessory 2.

In Figures 8 and 9, the upper shell forming the main body 1 and the handle 11 has been masked. As can be seen in Figures 8 and 9, the second part 122 comprises a rotation guide device 1223 of the accessory 2. In this case, the rotation guide device 1223 comprises a shoulder whose diameter corresponds to the internal diameter of a part of the accessory 2. The rotation guide device 1223 is thus intended to receive an open end of the accessory 2 so as to provide a rotation guide of the sliding pivot connection type. This makes it possible to guarantee good guidance during the rotation of the accessory 2 around the second axis A-A′, including in the event of the presence of radial forces (hair pulling) while allowing axial movement along the second axis A-A' when removing the accessory 2.

Said first and second parts 121, 122 are movable relative to each other, more particularly according to a flat support movement, as illustrated by Figures 8, 9 and 12. Indeed, as can be seen in the which illustrates an exploded view of the articulation 12 of FIGS. 10 and 11, the first inclined face of the first part 121 comprises a first plane 1211 and the second inclined face of the second part 122 comprises a second plane 1221. Thus, by highlighting movement of said second part 122 with respect to first part 121 (or vice versa), that is to say by creating a relative movement between said first inclined face and second inclined face, the second plane 1221 will move on the first plane 1211 (or vice versa). As can be seen on the , said first plane 1211 and second plane 1221 form portions of discs, or rings, intended to slide one over the other. The first plane 1211 extends around, and is inclined with respect to, the first axis P-P', while the second plane 1221 extends around, and is inclined with respect to, the second axis A-A'

Said first part 121 and second part 122 are attached to each other in order to maintain the joint 12 in the form of a unitary part. Indeed, as can be seen in the , the first part 121 comprises a guide and attachment device 1212 while the second part 122 comprises a complementary guide and attachment device 1222.

More precisely, the guide and hooking device 1212 comprises a circular groove. The complementary guide and attachment device 1222 comprises a circular tongue, produced on the second plane 1221. Thus, said groove receives said tongue. Thus, the guide and attachment device 1212 is designed to at least partially receive the complementary guide and attachment device 1222, which makes it possible to ensure the assembly between the first part 121 and the second part 122. Thus , the complementary guide and attachment device 1222 is designed to engage in the guide and attachment device 1212 so as to ensure locking in translation but a degree of freedom in rotation, so as to achieve a pivot connection .

The articulation 12 can assume at least two positions: a first position illustrated in and a second position illustrated in . It is then understood that the first position of the articulation 12 of the corresponds to the first position of accessory 2 of the or 2, while the second position of joint 12 of the corresponds to the second position of the accessory of the or 4.

In the first position, the whole of the joint 12 is oriented along the first axis P-P', that is to say that the first part 121 and the second part 122 are both aligned on the first axis P-P'. In other words, the first inclined face and the second inclined face 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 staggered rows or "head-to-tail".

In the second position, the first part 121 of the joint 12 is oriented along the first axis P-P' and the second part 122 of the joint 12 is oriented along the second axis A-A' which forms a non-zero angle with the first axis P-P'. Indeed, the first inclined face extends along and around the first axis P-P' while the second inclined face extends along and around the second axis A-A'. In the second position, the first plane 1211 and second plane 1221 are not arranged in staggered rows or "head to tail".

The second part 122 is therefore movable between said first and second position. Thus, to move the joint 12 from the first position to the second position, and therefore the accessory 2 from the first position to the second position, that is to say so as to "bend" the accessory 2 with respect to the handle 11, it is then necessary to perform a rotation of the second part 122 around the second axis A-A' with respect to the first part 121 which remains fixed, which will have the effect of orienting the second part 122 and the second axis A-A' with a non-zero angle with respect to the first axis P-P'. Indeed, as explained previously, the only degree of freedom existing between said first part 121 and second part 122 is 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 in which said first axes P-P' and second axis A-A' coincide ( ) to form an elbow in which the second axis A-A' forms a non-zero angle with the first axis P-P', as can be seen in . A 180° rotation of the second part 122 around the second axis A-A' allows the user to move the joint 12 from the straight configuration of to the angled configuration of .

Thus, the articulation 12 being connected on the one hand to the accessory 2 (via a sliding pivot connection) and on the other hand to the handle 11 (via a fixed connection), the articulation 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 in Figures 6 and 7 in particular. The accessory 2 can therefore, depending on the wishes of the user who is going to handle the device, be either in line with the handle 11 or bent with respect to the handle 11.

As shown in in particular, the articulation 12, and more specifically the second part 122, further comprises a locking device 123. The latter is then designed to lock the articulation 12 in the first position or in the second position, i.e. that is to say to maintain the joint 12 in one or other of the positions, avoiding any untimely movement of the joint 12. The locking 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. One of said first position or second position having been chosen by the user.

Figures 11 and 12 illustrate this blocking device 123 in detail. The latter thus comprises a third control device 1231, in this case at least one push button, intended to be manipulated by the user of the hairdressing device. More specifically, the third control device 1231 is designed to be actuated by at least one finger of the user, preferably by two fingers of the user and then comprising two diametrically opposed push buttons as illustrated.

The third control device 1231 projects radially from the second part 122. As can be seen in the various figures, the third control device 1231 comprises two diametrically opposed push buttons. The locking device 123 is then designed so that it can easily be actuated by the thumb and the index finger of the user's hand which is not placed on the handle 11 as can be understood in FIGS. 1 to 4 The locking device 123 is arranged at a distance from the accessory 2, that is to say it is separate from the accessory 2. Thus, the user knows precisely where to place his hands on the device: a first hand on the handle 11 in order to hold the hairdressing device and, occasionally, a second hand on the second part 122 of the joint 12, with at least one finger, and preferably two, on the third control device 1231 when he wishes to orient the accessory 2. This will therefore deter him from directly handling the accessory 2 which could present a risk of injury to the user's hand (due to the rotation and/or the heat of the 'accessory).

The locking device 123 also comprises at least one lug 1232 (or hook), and preferably two according to the illustrated embodiment, L-shaped, connected to the third control device 1231. In this case, a lug 1232 is connected to each of the two push buttons. Each lug 1232 extends from the third control device 1231 in the same direction as the complementary guide and attachment device 1222, that is to say towards the inside of the joint 12, or even towards the second axis A-A', as can be seen in the . More precisely, a first branch of the L is attached to the third control device 1231 and extends perpendicularly in the direction of the second axis A-A', therefore radially, while the other branch of the L is free and extends parallel to the second axis A-A', therefore axially. Thus, each lug 1232 is driven in a radial translation movement, that is to say perpendicular to the second axis A-A', when the third control device 1231, in this case the push button, is actuated by the user.

The locking device 123 also comprises at least one, and preferably two, as illustrated, notch(s) 1233 each made in the first part 121 of the articulation 12. Said notches 1233 are diametrically opposed as can be seen on the so as to correspond to the location of the push buttons, more precisely of the lugs 1232, of the third control device 1231. Each of said notches 1233 is then designed to alternately receive one or the other of the lugs 1232, more precisely the branch free of the L, when the user is going to rotate the second part 122 by 180° with respect to the first part around the axis A-A'

Each lug 1232 - notch 1233 pair will then prevent the relative rotation between the first part 121 and second part 122, thus ensuring that the joint 12 is held in position, regardless of the force exerted on the accessory 2.

By activating the third control device 1231, that is to say by pressing the diametrically opposed push buttons with the thumb and index finger, the user will move each lug 1232 in radial translation towards the second axis A-A' , which makes it possible to free each of the lugs 1232 from each of the notches 1233. More precisely, as can be seen in the , the free branch of the L of each lug 1232 leaves each notch 1233 and is found in a circular groove 1234. 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 . Said circular groove 1234 will then guide said lug 1232 during the rotation of the first part 121 relative to the second part 122. When a rotation of 180° around the second axis A-A' has been performed, each lug 1232 is again facing a notch 1233 (but not the same) and can leave the circular groove 1234 to resume its place inside the notch 1233 so as to lock the articulation 12, as can be understood with the .

The locking device 123 also comprises an elastic return device, a spring for example (not shown), in the locked position. In other words, the free position is an unstable position while the locked position is a stable position. Thus, without action by the user on the third control device 1231, the joint 12 is blocked, which prevents any undesirable movement of the latter, and therefore any undesirable movement of the accessory 2 with respect to the main body 1. In addition, the elastic return device ensures automatic locking of the joint 12 in one or the other of the first or second position as soon as each lug 1232 arrives opposite each notch 1233, 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 one or the other of the first or second position. Each pin 1232 is indeed forced, by the elastic return device, to leave the circular groove 1234 as soon as it is facing a notch 1233. This makes the use of the joint 12 more intuitive. For example, a spring can be arranged under each push button so as to keep it in the "exit" position, that is to say so as to force each lug 1232 to enter each notch 1233 as soon as they face each other. Alternatively or additionally, it is also possible to use a semi-circular spring wire (for example) placed between the two pushbuttons so as to exert a force which tends to move said pushbuttons away from each other, i.e. that is, to push them away from each other, and thus finally to arrange them in a stable position. Be that as it may, the elastic return device generally tends to impart a radial force towards the outside (that is to say to move away from the second axis A-A') of the locking device 123, and more precisely push buttons and therefore lugs 1232.

As can be seen on the , the joint 12 comprises an air channel 124 designed to allow the flow of air 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 previously explained. More precisely, the air channel 124 is delimited by a tube 1241. In addition, the air channel 124 comprises a plurality of walls 1242, arranged radially inside the tube 1241. Said plurality of walls 1242 thus form different channels which make it possible to correctly direct the flow of air, 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 at the outlet of the device for setting the air in motion.

It is therefore understood, in the embodiment illustrated by the various figures, that the accessory 2 can move between said first position and second position, in particular thanks to the relative mobility between the first part 121 and second part 122. The accessory 2 is thus mobile between two functional positions:
- a first position in which said second axis A-A' and first axis P-P' form between them a flat angle, that is to say a position in which the accessory 2 is located in alignment with the main body 1 as shown can be seen in figures 1, 2 and 5;
- a second position in which said second axis A-A' and first axis P-P' 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 in Figures 3, 4 and 6.

More specifically, as shown in , in the second position, the accessory support 4 is oriented along the second axis A-A', i.e. it forms an angle with respect to the main body 1.

Thus, in particular thanks to the mobility of the joint 12 and of the accessory support 4, each of the first and second positions does indeed allow the rotation of the accessory 2 by the rotation drive motor of the accessory arranged at the inside the accessory support 4.

As explained previously, according to the construction adopted in the embodiment illustrated and detailed above, the joint 12 is designed to be movable between exactly two positions: the first position or the second position. Therefore 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 to be able to be rotated by the accessory drive motor and/or to blow air, 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 offering him an ergonomic device. This also limits the design and manufacturing costs of the hairdressing device. Said first position and second position are stable positions and defined by design, which prevents the user from placing the accessory 2 in an inadequate position (in fact, there is no possible blocking in an intermediate position) and simplifies its handling of the hairdressing device, while limiting the costs of designing and manufacturing the device.

One could however imagine, without departing from the scope of the invention, that the accessory 2 could move 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' and/or air blowing through the accessory. One 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 articulation, comprising for example a universal joint.

As can be seen in the illustrated embodiment, the second axis A-A' forms an angle α different from the right angle with the first axis P-P' when the accessory 2 is in the second position. More precisely, the angle α is equal to 150° as can be seen on the . This is the angle formed between the main body 1, or the handle 11, and the accessory support 4, or the accessory 2 itself, but also between the first part 121 and the second part 122 of the joint 12. It has in fact been determined that this value makes it possible to offer very ergonomic use for the user while maintaining very good styling performance, in particular for the user who would use the hairdressing device on himself. hairstyle (user doing their own hair) and who would like to style the back of their head and/or possibly the sides of their head. However, it has also been determined that an angle α comprised between 130° and 170° or even between 100° and 170° makes it possible to obtain ergonomic use for the user.

Claims (14)

Hairdressing appliance comprising:

• a main body (1) comprising a handle (11) extending longitudinally along a first axis (P-P'), and
• an accessory (2) intended to come into contact with the hair to shape the latter, said accessory (2) extending longitudinally along a second axis (A-A'), and
• 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), and/or
• an air moving device for creating an air flow between an air inlet (110) and an air outlet (24), the main body (1) including the air inlet (110) at a free end and the accessory (2) comprising the air outlet (24),

said accessory (2) being movable between at least two functional positions:

• a first position in which said second axis (A-A') and first axis (P-P') form between them a flat angle,
• a second position in which said second axis (A-A') and first axis (P-P') form between them an angle different from the flat angle,

said first position and second position being stable positions defined by design,
the main body (1) comprising an articulation (12) located between, and connecting, the handle (11) and the accessory (2), the articulation (12) comprising a first part (121) integral with the handle (11 ) and a second part (122) movable between said first and second positions,
said second part (122) comprising a blocking device (123) movable between a free position, allowing the accessory (2) to move between said first position and second position, and a locked position blocking said accessory (2) in one of said first position or second position, position having been chosen by the user. Hairdressing appliance according to the preceding claim, in which the second axis (A-A') forms an angle α different from the right angle with the first axis (P-P') when the accessory (2) is in the second position . Hairdressing device according to the preceding claim, in which the said angle α is between 100° and 170°, preferably between 130° and 170° and advantageously equal to 150°. Hairdressing device according to any one of the preceding claims, in which the said first part (121) forms a first inclined face and the said second part (122) forms a second inclined face, the said first inclined face and the second inclined face being movable one relative to the other so as to move the accessory (2) between said first position and second position. Hairdressing appliance according to any of the preceding claims wherein said free position is an unstable position while said locked position is a stable position. Hairdressing appliance according to any one of the preceding claims, in which the said accessory rotation drive motor (2) is located inside the said accessory (2). Hairdressing appliance according to any of the preceding claims wherein the air outlet (24) comprises a plurality of holes. Hairdressing appliance according to any one of the preceding claims, in which the hairdressing appliance comprises an air heating device. Hairdressing device according to any one of the preceding claims, in which the accessory (2) comprises a contact surface (21) intended to serve as a surface for rolling up the hair and a plurality of barbs (23) projecting from the said surface. contact (21). Hairdressing appliance according to any one of the preceding claims, in which the locking device (123) comprises a third control device (1231) adapted to be actuated by at least one finger of the user. Hairdressing appliance according to the preceding claim, in which the locking device (123) projects radially from the second part (122). Hairdressing appliance according to the preceding claim, in which the third control device (1231) is designed to be actuated by two fingers of the user. Hairdressing appliance according to the preceding claim, in which the third control device (1231) comprises two diametrically opposed push buttons. Hairdressing appliance according to any one of Claims 10 to 13, in which the locking device (123) is arranged at a distance from the accessory (2).