EP3240453B1 - Multi-functional hairstyling device of the rotating brush type - Google Patents

Description

The present invention relates to a multifunction hairdressing device of rotating brush type which aims to allow the realization of several types of styling using the same device. In a preferred embodiment, the hairdressing apparatus according to the invention will make it possible to combine the effects of a curling iron, a straightener, a brush and a hair dryer so as to achieve at least three different hairstyles, on dry or wet hair.

In the field of multi-function hairdressing appliances of the rotating brush type, the documents are known JPS54136961A , JPS54136959A , EP1558106 and CN102783802 .

In the document JPS54136961A , the hairdressing apparatus comprises a heating mandrel equipped with disks successively arranged one after the other along a shaft. The discs are compressed on each other by means of a tip provided with a spring arranged at the end of the shaft, the spring exerting pressure on these discs. The disks deviate from each other under the constraint of the hair during their positioning consisting of placing them between the lateral faces of these disks and in contact with the shaft. The lateral faces of the discs exert pressure on the hair once positioned as mentioned above. A pull on the tip exerted in the direction of the shaft releases the spring and thus stop the pressure exerted by the discs on the hair, so as to easily disengage the mandrel at the end of styling. This implementation has the disadvantage of not ensuring a proper positioning of the hair between the discs and in contact with the shaft, because of the need to constrain the hair to penetrate between the discs away. In addition, this hairdressing apparatus is not ergonomic because it requires manipulation with the two hands in order to hold the body of the hairdresser with the first hand and pull the tip with the second hand, to remove the hair from the mandrel after styling. The user can not manipulate his hair when they release the mandrel, even during their positioning, as soon as he has to hold the body of the device with one hand and with the other hand the endpiece.

In the document JPS54136959A , the hairdressing apparatus comprises a heating mandrel equipped with a shaft which receives a helical spring whose turns are provided with bristles. A tip arranged at the end of the shaft is configured to be positioned and locked either in a first position in which the spring is compressed, to press the turns against each other after positioning the hair between said turns, either in a second position in which the spring is relaxed, to separate the turns and allow the removal of the hair after styling. This implementation has the disadvantage of not adapting the pressure on the hair as a function of the variation in the amount of hair between the turns, because the tip is disposed, in a binary manner, in the first position or second position. Indeed, the amount of hair disposed between all the turns will change the pressure exerted by the tip on these turns, this pressure is reflected on the hair. In addition, this hairdressing device is not ergonomic because it requires manipulation with both hands to hold it with the first hand and push or pull the tip with the second hand, to arrange it in the first or second position. When pushing on the mouthpiece with one hand while manipulating the apparatus with the other hand, hair may partially disengage from the turns of the spring and not be properly pressed by said turns.

In documents EP1558106 and CN102783802 , the hairdressing apparatus comprises a heating mandrel provided with a shaft on which are arranged a spiral fixed profile and a spiral moving profile. The mobile profile can be either pressurized against the fixed profile or removed from said fixed profile, under the action of a control button. The hair is arranged between the mobile profile and the fixed profile, in contact with the shaft, an action on the control button allows then to press the hair between the turns of the two fixed and mobile profiles, the release of the button allowing the contrary to release the hair after styling. This implementation has the disadvantage of exerting different pressures on each lock of hair taken between each pair of turns of the movable profile and the fixed profile, because of the differences in thickness of the wicks compressed between the mobile turns and the fixed turns . Indeed, each turn of the movable profile has a stop position which depends on the thickness of the lock of hair between said moving coil and the fixed turn. These pressure differences can affect the homogeneity of styling.

The present invention overcomes the aforementioned drawbacks. To this end, the invention relates to a hairdressing apparatus which comprises a body configured to manipulate said apparatus and a hair styling mandrel which extends the body along a longitudinal axis X and which makes it possible to work the hair for styling purposes. The hairdressing apparatus also comprises means for heating the mandrel which makes it possible to dry the damp hair during their treatment with the mandrel, or even to obtain a better treatment of the hair during handling with the mandrel. In addition, the mandrel includes on its outer side a proximal ring, a distal ring and at least one intermediate ring positioned between said proximal and distal rings. These rings are configured to be positioned joined together, by sliding in one direction, so as to form a roller or to be spaced apart, by sliding in the other direction, so as to allow the insertion of hair into the spacings. formed between said rings. Furthermore, the hairdressing apparatus comprises a device for actuating the rings configured at least to spread the rings so as to insert the hair into said gaps, and to tighten said rings independently of one another according to thicknesses of hair disposed between said rings, while exerting a constant pressure on the hair. Thus, the spacing of the rings to release the hair or position on the mandrel, is easily done. The independent tightening of the rings while ensuring a constant pressure makes it possible to work identically the hair arranged in the spacings between the rings, whatever the variations in thickness that may exist between the locks of hair positioned in said spacings. These features of the hairdressing apparatus according to the invention allow its use for smoothing the hair, positioning them in the spacings between the tightened rings and then exerting traction on these hair. While the roll form of the mandrel, when the rings are contiguous, allows the realization of curls on dry or wet hair. Other hair shaping can be envisaged by means of said hair styling apparatus.

According to one embodiment of the hairdressing apparatus that is the subject of the invention, the rings are configured to be mounted successively sliding relative to one another along the longitudinal axis X. In addition, the actuating device comprises a transmission system configured to telescopically slide the rings during their spacing and during their tightening, by acting on the distal ring and then successively on the intermediate rings and on the proximal ring, during spacing and when tightening the rings .

According to an embodiment of the aforementioned transmission system, the latter comprises a transmission piece mounted in sliding connection along the longitudinal axis X opposite the mandrel, means for securing the distal end of the transmission part. with the distal ring, stop means configured on each ring to come into contact with the preceding ring after a certain stroke in one direction and the other along the longitudinal axis X, and return means of the transmission piece for bringing the rings in contiguous position.

Preferably, according to this embodiment of the transmission system, each ring comprises, in a longitudinal section plane, a slot shape configured to successively slide the rings into each other and to abut on the previous ring after a certain stroke when tightening the rings.

Preferably, according to this embodiment of the transmission system, the abutment means comprise, for the distal ring and the at least one ring intermediate, a rod secured to said ring and abutting against the previous ring after a certain stroke, during the spacing of said rings.

Preferably, according to this embodiment of the transmission system, the securing means comprise a distal shaft secured, on the one hand, to the distal end of the transmission part and, on the other hand, to the distal ring.

According to an embodiment of the actuating device, the latter comprises an actuating trigger arranged on the body and connecting means arranged between the trigger and the transmission system. In the aforementioned embodiment of the transmission system, the trigger allows the activation of the transmission part in translation along the longitudinal axis X, through said connecting means.

According to the hairdressing apparatus object of the invention, the mandrel comprises a drum which has a proximal portion and a distal portion. The distal portion is slidably mounted relative to the proximal portion along the longitudinal axis X, preferably by engagement of the distal portion within the proximal portion. In addition, the rings are slidably mounted on the drum, preferably on the proximal portion. On the contrary, a variant could be envisaged according to which the proximal portion engages in the distal portion to effect this sliding, the rings being slidably mounted on the distal portion of the drum.

According to this aforementioned preferred embodiment of the mandrel, the distal ring is attached to the distal portion of the drum and is mounted in sliding connection vis-à-vis the proximal portion of the drum. In addition, the at least one intermediate ring and the proximal ring are mounted in sliding connection with respect to the proximal portion.

According to this embodiment of the mandrel, the drum is mounted pivotally connected along the longitudinal axis X vis-à-vis the body. In addition, the hairdressing apparatus comprises means for rotating the drum. Thus, the hairdressing apparatus has a rotating mandrel which facilitates the handling of said device during the treatment of the hair, in particular for making a looping. However, a simplified embodiment of the hairdressing appliance according to the invention could be envisaged with a non-rotating mandrel with respect to the body.

According to this implementation of the hairdressing apparatus, with the rotary mandrel, the transmission system is arranged inside the drum, connecting means being configured to translate said transmission system along the longitudinal axis X, to inside the proximal portion of said drum.

According to this embodiment of the mandrel, the heating means of the hairdressing apparatus comprise at least one heating element arranged inside the drum. In addition, the drum is made of a material that provides thermal conduction to transfer heat from the heating element to the hair being treated. Preferably, this at least one heating element is arranged on the inner wall of the drum, which makes it possible to heat the outer face of the mandrel more accurately while providing a wider temperature range than when the heating element is simply disposed within the drum without direct contact therewith, this solution still possible in a less effective embodiment variant.

According to one embodiment of the hairdressing apparatus object of the invention, the heating means comprise a hot air blowing system configured to project hot air along the outer wall of the mandrel. Preferably, the mandrel comprises a base and a head, the hot air blowing system being configured to project hot air at least through outlets arranged at the base and the head. This optimizes the distribution of hot air blown on the hair on both sides of the mandrel. Other alternative embodiments are possible, for example the implementation of a hot air blowing system configured to project hot air radially to the mandrel, through the rings.

According to the hairdressing apparatus object of the invention, it comprises a blocking system configured to act on the actuating device and concomitantly move the rings in contiguous position, in a position spaced from a base of the mandrel or conversely, in a tightened position vis-à-vis said base, upon activation of said actuator. This implementation makes it possible to loop the hair by means of the hair-styling device, by previously blocking the end of a lock of hair between the proximal ring and the base, after having simultaneously discarded the rings and then tightened concomitantly with those and then winding the wick around the mandrel, either manually when the mandrel is non-rotating or, preferably, automatically when the chuck is rotatable and motorized. This locking system facilitates the gripping of the end of the lock of hair by means of the rings and then its winding around the mandrel to achieve the looping. According to this embodiment of the hairdressing appliance, it comprises a control button of the locking system for activating and deactivating said locking system. The looping of the hair can also be performed on dry or wet hair thanks to the heating means of the mandrel.

According to the hairdressing apparatus object of the invention, it comprises a sleeve configured to be attached to the mandrel. This sleeve includes bristles. Thus, the sleeve can be arranged or removed from the mandrel at will, in order to achieve a tensioning and shaping of the hair by means of the hairdressing apparatus, optionally in addition to a heat treatment on wet hair.

In a preferred embodiment of the hairdressing apparatus object of the invention, it comprises between four and eight intermediate rings, preferably five intermediate rings.

• Les figures 1 et 2 illustrent, selon un premier plan de coupe longitudinale, un appareil de coiffure objet de l'invention avec des bagues respectivement en position écartée et en position resserrée ;
• Les figures 3 et 4 illustrent, selon un second plan de coupe longitudinale perpendiculaire au premier plan précité, ledit appareil de coiffure des figures 1 et 2 avec les bagues respectivement en position écartée et en position resserrée ;
• Les figures 5 et 6 illustrent essentiellement le mandrin avec les bagues resserrées correspondant aux figures 2 et 4, selon deux angles de vue isométrique et selon deux plans de coupe différents ;
• La figure 7 est une vue isométrique depuis le côté proximal du mandrin, qui met en évidence les bagues et les éléments agencés à l'intérieur du tambour ;
• La figure 8 est une vue en plan depuis le côté distal du mandrin, qui met également en évidence les éléments agencés à l'intérieur du tambour ;
• La figure 9 illustre un manchon constituant une brosse, les poils de la brosse n'étant toutefois pas représentés pour une meilleure compréhension de cette figure ;

The following description highlights the characteristics and advantages of the hairdressing appliance according to the invention in a non-limiting embodiment based on figures, among which:

• The Figures 1 and 2 illustrate, according to a first longitudinal sectional plane, a hairdressing apparatus object of the invention with rings respectively in spaced position and in a constricted position;
• The Figures 3 and 4 illustrate, according to a second plane of longitudinal section perpendicular to the aforementioned first plane, said hair styling apparatus of Figures 1 and 2 with the rings respectively in the spaced apart position and in the constricted position;
• The figures 5 and 6 essentially illustrate the mandrel with the tightened rings corresponding to the figures 2 and 4 , according to two angles of isometric view and according to two different section planes;
• The figure 7 is an isometric view from the proximal side of the mandrel, which highlights the rings and the elements arranged inside the drum;
• The figure 8 is a plan view from the distal side of the mandrel, which also highlights the elements arranged inside the drum;
• The figure 9 illustrates a sleeve constituting a brush, the bristles of the brush being however not shown for a better understanding of this figure;

As illustrated on Figures 1 to 4 , the hairstyling appliance 1 comprises a body 2 and a mandrel 3. The mandrel 3 is arranged in the longitudinal extension of the body 2, along a longitudinal axis X. This mandrel 3 comprises a drum 4 which has a proximal portion 5 and a distal portion 6, as illustrated in more detail on the Figures 3, 4 and 6 . The distal portion 6 is slidably mounted along the longitudinal axis X within the proximal portion 5.

The mandrel 3 comprises a proximal ring 7, five intermediate rings 8-12 and a distal ring 13, as illustrated in FIGS. Figures 1 to 3 . The proximal 7, intermediate 8-12 and distal 13 rings are also illustrated on the Figures 5 to 7 . The number of intermediate rings is variable depending on the length of mandrel 3 or the number of pressures on the hair that it is desired to perform in a single hair treatment operation. We will preferably choose between four and eight intermediate rings. With regard to these Figures 1 to 7 it is found that the proximal ring 7, the intermediate rings 8-12 and the distal ring 13 have a crenellated shape in a longitudinal sectional plane passing through the longitudinal axis X.

As shown in more detail in figures 5 and 6 , the proximal ring 7 comprises an inner cylinder 7a and an outer cylinder 7b interconnected by a shoulder 7c, and also comprises a circular base 7d which partially closes the distal end of the outer cylinder 7b. Similarly, the intermediate rings 8-12 each comprise an inner cylinder 8a-12a and an outer cylinder 8b-12b interconnected by a shoulder 8c-12c, and a circular base 8d-12d which partially closes the distal end. of the outer cylinder 8b-12b. The distal ring 13 also includes an inner cylinder 13a and an outer cylinder 13b interconnected by a shoulder 13c, but lacks a circular base. The distal end 14 of the outer cylinder 13b of the distal ring 13 is nested on a shouldered head 15 of the distal portion 6 of the drum 4, as illustrated in particular by the figures 5 and 6 . The circular base 7d of the proximal ring 7 is slidably mounted along the longitudinal axis X on the inner cylinder 8a of the first intermediate ring 8. Likewise, the circular bases 8d-11d of the intermediate rings 8-11 are successively mounted on sliding along the longitudinal axis X on the inner cylinders 9a-12a of the following intermediate rings 9-12. The circular base 12d of the last intermediate ring 12 is slidably mounted along the longitudinal axis X on the inner cylinder 13a of the distal ring 13.

The hairdressing appliance 1 comprises a connecting piece 16 illustrated on the Figures 1 to 6 . This connecting piece 16 is arranged along the longitudinal axis X and comprises a flywheel 17 secured to a hollow shaft 18. The distal end of the flywheel comprises a shoulder 17a illustrated in greater detail in FIG. figures 5 and 6 . As illustrated in more detail on Figures 1 to 6 , the proximal portion 5 of the drum 4 comprises a base 19 whose proximal end also comprises a shoulder 19a. This base 19 is assembled with the flywheel 17 by means of fixing screws housed in locations 20 provided for their screwing, as illustrated in FIG. Figures 1 to 6 , said assembly making it possible to constitute a groove 21 by the arrangement vis-à-vis said shoulders 17a, 19a respectively on the steering wheel 17 and the base 19, as illustrated in particular in figures 5 and 6 .

As illustrated on Figures 1-6 the body 2 comprises at its distal end 2a an internal cylindrical portion 22 in which the flywheel 17 of the connecting piece 16 and partly the base 19 of the proximal portion 5 of the drum 4 are housed. This internal cylindrical portion 22 comprises protuberances 23 each provided with a lug 23a, preferably six, uniformly distributed around said internal cylindrical portion 22. These lugs 23a are housed in the groove 21 arranged between said handwheel 17 and said base 19, as illustrated in more detail in figures 5 and 6 and provide pivotally mounted connection along the longitudinal axis X of the connecting piece 16 and the proximal portion 5, vis-à-vis the body 2. The hollow shaft 18 of the connecting piece 16 extends in the body 2, along the longitudinal axis X, and is secured at its proximal end 18a, at the distal end 24b of a transmission shaft 24, also hollow, as illustrated in FIG. Figures 1 to 4 and 6 . The proximal end 24a of this drive shaft 24 is connected to a rotational drive motor. Two rings 26a, 26b are complementarily mounted between the transmission shaft 24 and the inner wall 27 of the body 2, so as to ensure the pivot connection along the longitudinal axis X of the proximal portion 5 of the drum 4, connecting piece 16, transmission shaft 24, vis-à-vis the body 2.

As illustrated on Figures 1, 2 , 5 to 8 , the proximal portion 5 of the drum 4 is hollow and comprises two housings 28, 29 arranged longitudinally in facing relation to the cylindrical inner wall of said proximal portion 5. These housings 28, 29 are configured to receive heating elements 31 , 32, preferably PTC positive temperature coefficient sensors. These heating elements 31, 32 are electrically connected by means of cables 33, 34 which pass through the hollow shaft 18 of the connecting piece 16 and the transmission shaft 24, the ends 33a, 34a of these cables 33 , 34 being connected by means of a rotating electrical connector 35 to an electronic management card (not shown in the figures), as shown in FIGS. figures 1 and 2 . Thus, the heating elements 31, 32 are in direct contact with the drum 4, itself in contact with the rings 7-13. This makes it possible to set the heating temperature of the rings 7-13 more precisely and offers a greater range of control of the heating temperature since the heat transfer by heat conduction through the drum 4 is improved. by this direct contact with the heating elements 31, 32. It will be chosen for this a material providing good thermal conduction for the implementation of the drum 4, for example aluminum.

As illustrated in Figures 1 to 4 a fan 36 is arranged inside the body 2, at its proximal end 2b. A perforated cover 37 closes this proximal end 2b and ensures an air intake when the fan 36 is started, which then blows the air into the chamber 38 of the body 2. A second heating element 39, for example sensors With positive temperature coefficient, is arranged in the central part of the chamber 38. The air blown by the fan 36 passes through this second heating element 39, which allows to heat it, then this heated air is propagated in said chamber 38 to the distal end 2a of the body 2.

As illustrated on Figures 1 to 6 , the protuberances 23 on the internal cylindrical portion 22 of the body 2 make it possible to maintain a spacing with the flywheel 17 of the connecting piece 16 and the base 19 of the proximal portion 5 of the drum 4, which makes it possible to constitute a conduit which communicates with the chamber 38 and which opens out at the air outlets 40 at the distal end 2a of the body 2. These air outlets 40 allow to blow the hot air in the longitudinal direction, from the base 3a of the mandrel 3, at the surface of the outer cylinders 7b-13b rings 7-13 constituting the outer wall of said mandrel 3.

As illustrated on Figures 1 to 6 the proximal 5 and distal portions 6 of the drum 4 are hollow and define a chamber 41. The flywheel 17 of the connecting piece 16 comprises four openings 42 which communicate with the chamber 41 of the drum 4. Thus, the hot air is propelled by the fan 36 in the chamber 41, to the shouldered head 15 of the distal portion 6 of the drum 4. A closure cap 43 comprises studs 44 which allow its attachment with the shoulder head 15, by means of screws (not shown). These studs 44 make it possible to maintain a spacing 45 between the inner wall 43a of the closure cap 43 and the shoulder head 15, which forms a channel communicating with said chamber 41. In addition, the inner wall 43a has a curved shape as illustrated. in Figures 1 to 3 allowing said spacing 45 to constitute a deflector with an air outlet 46 at the head 3b of the mandrel 3, oriented towards the rings 7-13. This air outlet 46 is used to blow the hot air to the rings 7-13 in the direction of the longitudinal axis X, at the surface of the outer cylinders 7b-13b.

The hairdressing apparatus 1 comprises a transmission part 47 illustrated on the Figures 1 to 8 . This transmission part 47 comprises two arms 48, 49 which extend longitudinally in the chamber 41 of the drum 4. These arms 48, 49 are slidably mounted along the longitudinal axis X, through two open orifices 50, 51 arranged on the flywheel 17 of the connecting piece 16. Thus, thanks to this slide connection, the rotational drive of the connecting piece 16, through the motor 25, allows to drive simultaneously the transmission part 47 in rotation along the longitudinal axis X. The transmission part 47 comprises a spider 52 which is fastened to the distal ends 48b, 49b of the arms 48, 49, as illustrated in particular in FIGS. Figures 1 and 2 . Similarly, the transmission part 47 comprises a guide ring 53 which is secured to the proximal ends 48a, 49a of the arms and which is slidably mounted relative to the hollow shaft 18 of the connecting piece 16, according to the longitudinal axis X. The spider 52 and the guide ring 53 are rotated along the longitudinal axis X with the two arms 48, 49 to which they are attached when the motor 25 is started.

As illustrated on Figures 1 to 4 , the hairstyling apparatus 1 comprises a trigger 54 which is mounted in pivot connection 55 on the outer side of the body 2 and allows the actuation of two rods 56, 57 to which it is attached. The distal ends 56b, 57b of these rods 56, 57 each comprise a light 58, 58 'of oblong shape. A slip ring 59 is in sliding contact with the guide ring 53, as illustrated in these Figures 1 to 4 and 6 . The sliding ring 59 comprises two nipples 60, 61 which extend in opposition, as illustrated in particular in Figures 3, 4 and 6 , and are housed respectively in the slots 58, 58 'on the rods 56, 57. The sliding ring 59 is also slidably mounted along the longitudinal axis X, with respect to the hollow shaft 18 of FIG. the connecting piece 16. An actuation of the trigger 54, a first position illustrated in FIG. figure 2 to a second position illustrated in figure 1 , makes it possible to translate the sliding ring 59 towards the front of the hollow shaft 18, which concomitantly causes the translation towards the front of the guide ring 53 and, therefore, of the transmission piece 47. the activation of the motor 25, the guide ring 53 is rotated, as explained above, and therefore rubs on the sliding ring 59 which is secured to the connecting rods 56, 57.

As illustrated on Figures 1 to 6 , the hairstyling appliance 1 comprises a proximal rod 62, five intermediate rods 63-67 and a distal rod 68. The proximal rod 62 is arranged radially and passes through two oblong slots 69, 70 arranged longitudinally on the cylinder internal 7a of the proximal ring 7, the ends 62a, 62b of the proximal shaft 62 being housed in two holes 103a, 103b arranged radially on the proximal portion 5 of the drum 4. Thus, the proximal ring 7 is mounted in sliding connection vis- with respect to the proximal portion 5, along the longitudinal axis X, with a displacement stroke limited to the length of the apertures 69, 70.

As illustrated in particular in Figures 1, 2 , 5 and 6 , the proximal portion 5 of the drum 4 comprises two longitudinal slots 71, 72 which extend parallel to the longitudinal axis X and which are arranged facing this proximal portion 5. Similarly, the distal portion 6 of the drum 4 comprises two grooves 73, 74 which open out at the proximal end 6a of said distal portion 6 and which are arranged facing each other in alignment with the longitudinal slots 71, 72, as illustrated in particular by the FIGS. figures 5 and 6 .

As illustrated in particular by Figures 1 to 6 , the intermediate rods 63-67 are arranged radially and pass each through the two longitudinal slots 71, 72. The two ends 63a-67a of these intermediate rods 63-67 pass respectively through two through holes 75a-79a, illustrated in FIG. figure 6 , arranged radially and vis-à-vis the inner cylinders 8a-12a of the intermediate rings 8-12, which are slidably mounted along the longitudinal axis X with respect to the proximal portion 5 of the drum 4. This design makes it possible to assemble a slide connection of the intermediate rings 8-12 vis-à-vis the proximal portion 5 of the drum, along the longitudinal axis X. In addition, these two ends 63a-67a, 63b-67b rods Intermediates 63-67 are housed within the slots 7-11 former forming slots, in the portions corresponding to the outer cylinders 7b-11b of said rings 7-11, as shown in FIG. figure 6 . Furthermore, the internal cylinders 8a-12a of the intermediate rings 8-12 are slidably mounted along the longitudinal axis X with respect to the circular bases 7d-11d of the preceding rings 7-11, as already explained above. Thus, each intermediate ring 8-12 can slide along the longitudinal axis X opposite the ring 7-11 which precedes it, or downstream until the ends 63a-67a, 63b-67b intermediate rod 63-67 abuts against the inner side of the circular base 7d-11d of the previous ring 7-11, as shown in FIG. figure 3 , or upstream until the shoulder 8c-12c on the intermediate ring 8-12 comes into abutment against the outer face of the circular base 7d-11d of the previous ring 7-11, as appears in particular on the figures 5 and 6 . In addition, the rotation of the intermediate ring 8-12 vis-à-vis the ring 7-11 which precedes it is blocked through the longitudinal slots 71-72 through which pass the intermediate rods 63-67, which provides a slide connection assembly with a limited stroke of each intermediate ring 8-12 vis-à-vis the ring 7-11 which precedes.

In a manner comparable to the aforementioned characteristics, as illustrated in particular by figure 6 , the distal rod 68 is arranged radially and passes through the two longitudinal slots 71, 72 of the proximal portion 5 of the drum 4. The two ends 68a of the distal rod 68 respectively pass in two opening holes 80a arranged radially facing the inner cylinder 13a of the distal ring 13, which is slidably mounted along the longitudinal axis X with respect to the proximal portion 5 of the drum 4. design allows a slide connection of the distal ring 13 vis-à-vis the proximal portion 5 of the drum, along the longitudinal axis X. In addition, these two ends 68a, 68b of the distal rod 68 are housed inside the intermediate ring 12 which precedes it, in the portion corresponding to the outer cylinder 12b of said intermediate ring 12. As explained above, the inner cylinder 13a of the distal ring 13 is slidably mounted along the longitudinal axis X vis-à-vis the circular base 12d of the intermediate ring 12 previous. Thus, the distal ring 13 can slide along the longitudinal axis X vis-à-vis the intermediate ring 12 which precedes, or downstream until the ends 68a, 68b of the distal rod 68 come into abutment against the inner side of the circular base 12d of said intermediate ring 12, or upstream until the shoulder 13c on the distal ring 13 abuts against the outer face of the circular base 12d of the ring In addition, the rotation of the distal ring 13 vis-à-vis the intermediate ring 12 is blocked through the longitudinal lumens 71-72 through which the distal rod 68 passes, which ensures a connection assembly slide with a limited stroke of the distal ring 13 vis-à-vis the intermediate ring 12 which precedes. The distal rod 68 is further secured to the spider 52 that it passes through, as illustrated in particular by figures 3 and 5 . The ends 68a, 68b of the distal rod 68 pass respectively through the two grooves 73,74 of the distal portion 6 of the drum, as shown in FIG. figure 6 , which blocks the rotation of the distal portion 6 vis-à-vis the distal ring 13 along the longitudinal axis X.

When activating the trigger 54 of the first position illustrated in FIG. figure 2 to the second position illustrated in figure 1 , the transmission piece 47 is translated forwardly along the longitudinal axis X, which, because of the securing between the spider 52, the distal rod 68 and the distal ring 13, ensures the displacement towards the before said distal ring 13 and the distal portion 6 of the drum 4, the latter translating along the longitudinal axis X vis-à-vis of the proximal portion 5 of the drum 4. Concomitantly, the distal ring 13 translate vis-à-vis the intermediate ring 12 which precedes until the ends 68a, 68b of the distal rod 68 abut against the base circular 12d of said intermediate ring 12, which then causes the translation forwardly along the longitudinal axis X of the intermediate ring 12, vis-à-vis the intermediate ring 11 which precedes. When the ends 67a, 67b of the intermediate rod 67 abut against the circular base 11d of the intermediate ring 11 above, it in turn translates vis-à-vis the intermediate ring 10 which precedes it. The action is repeated as follows until the last intermediate ring 8 drives in translation the proximal ring 7, once the ends 63a, 63b of the last intermediate rod 63 abut against the circular base 7d of said proximal ring 7. The proximal ring 7 translates along the longitudinal axis X vis-à-vis the proximal portion 5 of the drum and the proximal rod 62 until the lights 69,70 on the proximal ring 7 come into abutment on the ends 62a, 62b of the proximal rod 62, which stops the deployment of the mandrel 3. In this extended position of the mandrel 3, the proximal ring 7 has a spacing 81 vis-à-vis the base 19 of the portion proximal 5 of the drum 4 and the rings 7-13 have spacings 82-87 between them. The actuating device as described above thus allows to deploy successively, telescopically, the rings 7-13 until they reveal between them spacings 81-87 which allow the insertion of locks of hair.

The hairdressing apparatus 1 is configured so that the trigger 54 automatically returns to the position illustrated in FIG. figure 2 when the user releases this trigger 54, after positioning the hair in the spacings 81-87. For this, return means ensure an automatic translation of the transmission part 47, once the trigger 54 released. Preferably, these return means consist of two springs (not shown in the figures) which are respectively arranged on the two arms 48, 49. These two springs can be arranged in the part of the arms 48, 49 located between the wheel 17 the connecting piece 16 and the spider 52; in this case the springs work in extension. One could instead provide an arrangement of these two springs in the portion of the arms 48, 49 located between the wheel 17 and the ring or the guide ring 53, said springs working in this case in compression. The stiffness constant of the springs will be dimensioned to ensure this automatic return of the trigger 54. However, a lower stiffness constant could be provided by previously actuating the trigger 54 manually to return it to the position illustrated in FIG. figure 2 , the springs then simultaneously pushing the transmission piece 47 rearwardly while keeping it pressed against the ring or the slip ring 59.

When the transmission piece 47 translates towards the rear of the hairdressing appliance 1, along the longitudinal axis X, the latter causes concomitantly the translation of the distal ring 13 and the distal portion 6 of the drum 4 which slide by relative to the proximal portion 5 of the drum 4. The hair disposed in the distal gap 87 located between the shoulder 13c of the distal ring 13 and the circular base 12d of the intermediate ring 12, are then compressed to a limit compression. This compression limit then causes the concomitant displacement of the distal ring 13 and the intermediate ring 12 above. The hair disposed in the last intermediate distance 86 is in turn compressed until a compression limit is reached causing the concomitant displacement of the distal ring 13 and the last two intermediate rings 12-11. The action is repeated as follows until the proximal ring 7 translates concomitantly with the distal ring 13 and all the intermediate rings 8-12. Once the hair disposed in the proximal gap 81 located between the shoulder 7c of the proximal ring 7 and the base 19 of the proximal portion 5 of the drum 4, are compressed, the return springs of the transmission part 47 balance. the pressure exerted on the hair arranged in the spacings 81-87 between the rings 7-13, independently of the thicknesses of hair located in these spacings 81-87, given the narrowing or the telescopic return of the rings 7-13 of the mandrel 3, starting from the distal ring 13 to the proximal ring 7.

The hairdressing apparatus 1 comprises a locking piece 88 appearing on the Figures 1 to 8 . This locking piece 88 comprises an end axis 89 which is divided into two branches 90, 91 which extend parallel to the longitudinal axis X, at the ends of which are respectively arranged two fingers 92, 93. A reinforcement bar 94 makes it possible to stiffen the two branches 90, 91. The end axis 89 is secured to a control knob 95 which is pivotally mounted along the longitudinal axis X, opposite the closure cap 43. control button 95 actuates the rotation of the locking piece 88 along the longitudinal axis X, of an unlocked position in which the fingers 92, 93 are disengaged with respect to the first intermediate rod 63, as illustrated in figures 5 and 7 to a locked position according to which said fingers 92, 93 are engaged between the proximal rod 62 and the first intermediate rod 63, and abut against said first intermediate rod 63. In this locked position, the actuation of the trigger 54 similarly to the actuation for moving from a position of the trigger illustrated to the figure 2 to that illustrated in the figure 1 - Can translate forwardly the transmission part 47, which moves concomitantly the distal ring 13, the distal portion 6 of the drum with the closure cap 43 and, therefore, the locking piece 88. The fingers 92 , 93 then drive the first intermediate rod 63, which moves concomitantly the intermediate rings 8-12 and the distal ring 13 which remain contiguous. When the ends 63a, 63b of the first intermediate rod 63 come into contact with the inner face of the circular base 7d of the proximal ring 7, the latter is then also driven in translation along the longitudinal axis X, with the other rings 8 -13 contiguous, until the lights 69, 70 on the inner cylinder 7a abut against the proximal shaft 62. Only appear then the proximal spacing 81 and the first intermediate spacing 82, in which can be placed hair . The release of the trigger 54 allows the concomitant translation backwards, under the action of the springs, the distal ring 13 and the intermediate rings 8-12, which first tightens the first intermediate spacing 82 until that the proximal ring 7 also translates, the proximal gap 81 then tightening in turn. The rings 8-13 in contiguous position form a roller around which can be wound the hair which is held at their ends, at the tips, for the realization of a looping. An alternative embodiment could be envisaged according to which all the rings 7-13 would move together and concomitantly to reveal only the proximal spacing 81 when the trigger 54 is activated. In this case, it would be advisable to add an element abutment (not illustrated) complementary subject to the proximal ring 7, which would come into contact with the fingers 92, 93 of the locking piece 88.

As illustrated on the figure 9 , the hairdressing apparatus comprises a sleeve 96 which is configured to be positioned around the mandrel 3 when the rings 7-13 are disposed contiguously. The sleeve 96 includes bristles (not shown on the figure 9 for better reading thereof) which are distributed radially and uniformly over the sleeve at holes 97 which allow the assembly of these bristles on the sleeve 96. The sleeve 96 comprises two semi-cylindrical parts 98, 99 which are mounted in pivot connection 100 relative to each other along a longitudinal axis X1 parallel to the longitudinal axis X at their first edges 98a, 99a, which opens the sleeve 96 to position it around the mandrel 3 then close the sleeve to tighten around the mandrel 3. The second edges 98b, 99b of the two parts 98, 99 are held together in the closed position, by means of two clips 101, 102, illustrated in FIG. figure 9 . This sleeve 96 makes it possible to use the hairdressing appliance 1 for brushing the hair.

Thus, the aforementioned characteristics of the hairdressing appliance 1 offer several possible uses. By positioning and pressing the hair in the spacings 81-87 between the rings 7-13 and the base 19 of the proximal portion 5 of the drum 4, close to the roots of the hair, and then by translating the hairstyling apparatus 1 of the roots towards the ends of the hair, a smoothing is performed. By positioning and pressing the tips of the hair in the spacing 81 between said base 19 and the proximal ring 7, then by wrapping the hair around the rings 7-13 joined and forming a roll, a loop is made. By adding the sleeve 96 around the mandrel 3, the hair is brushed. These different operations can also be performed on dry or wet hair, using the heating means, that is to say the heating elements 31,32 which provide thermal conduction through the drum 4 and the rings 7-13 and , in addition or independently, the fan 36 and the second heating element 39 which allow the blowing of hot air through the base 3a and the head 3b of the mandrel 3, along the outer surface of said mandrel 3.

The hairdressing apparatus 1 comprises other characteristics such as a control system of the heating means for adjusting the heating temperature of the heating elements 31, 32, 39 and for adjusting the speed of the fan 36.

It is possible to envisage alternative embodiments of the device for actuating rings 7-13 while retaining a tightening of these rings 7-13 independently of one another and a constant pressure between them. For example, the trigger 54 and the connecting rods 56, 57 may be replaced by another system for actuating the transmission part 47. The transmission system, that is to say the transmission part 47, can also be modified. the connecting piece 16, the rods 62-68, the shape of the rings 7-13, the return means (not shown) and the drum 4 consisting of the two proximal portions 5 and 6 distal, while achieving a similar telescopic mounting rings 7-13 which allows to separate the rings 7-13 between them, then to tighten independently said rings 7-13 while maintaining a constant pressure despite variations in hair thicknesses in the spacings 81-87.

It is also possible to envisage variants of ring locking systems 7-13 replacing the blocking piece 88, so as to spread the rings 7-13 in a contiguous manner with respect to the base 19 of the drum 4.

It is also possible to find alternative means for heating the mandrel 3, replacing the heating elements 31, 32.

The embodiment described above has the advantage of limiting the bulk of the chamber 41 of the drum 4, which contributes advantageously to arrange the heating elements 31, 32 directly in said chamber 41 and in direct contact with the inner wall 30 of the drum 4, which provides the aforementioned advantages. It will therefore be preferred embodiments of the hairdressing apparatus 1 which also allow an arrangement of heating means directly in the mandrel 3 and in contact with its inner wall.

Claims (18)

1. Hair styling appliance (1) comprising a body (2) which is configured to handle said appliance, a mandrel (3) for styling hair which extends the body along a longitudinal axis (X) and means for heating (31, 32) the mandrel, the mandrel comprising on the outer side thereof, a proximal ring (7), a distal ring (13) and at least one intermediate ring (8-12), said rings being configured to be positioned contiguously to one another so as to constitute a roller or to be distanced from one another, so as to enable the insertion of hair into the gaps (81-87) between said rings, characterised in that said hair styling appliance comprises a device for actuating the rings configured at least to distance the rings and to independently tighten said rings against one another according to the thickness of hair disposed between said rings.
2. Hair styling appliance (1) according to claim 1, wherein the rings (7-13) are configured to be mounted sliding successively against one another along the longitudinal axis (X), the actuation device comprising a transmission system configured to telescopically slide the rings during the distancing thereof and during the tightening thereof.
3. Hair styling appliance (1) according to claim 2, wherein the transmission system comprises a transmission part (47) mounted sliding in connection along the longitudinal axis (X) opposite the mandrel (3), the means for controlling (52, 68) the distal end of the transmission part with the distal ring (13), the abutment means (63-67, 7d-12d, 8c-13c) configured on each ring (7-13) to come into contact with the preceding ring at the end of a certain path in one direction and in the other direction along the longitudinal axis (X), and the means for returning the transmission part.
4. Hair styling appliance (1) according to claim 3, wherein each ring (7-13) comprises in a longitudinal cross-section plane, a slot shape configured to slide successively the rings into one another and to abut the preceding ring (7-12) at the end of a certain path during a tightening of the rings.
5. Hair styling appliance (1) according to claim 4, wherein the abutment means comprise, for the distal ring (13) and the at least one intermediate ring (8-12), a rod (63-67) controlled to said ring and abutting against the preceding ring (7-12) at the end of a certain path during the distancing of the rings.
6. Hair styling appliance (1) according to one of claims 3 to 5, wherein the controlling means comprise a distal rod (68) controlled to the distal end of the transmission part (47) and to the distal ring (13).
7. Hair styling appliance (1) according to one of claims 2 to 6, wherein the actuation device comprises an actuation trigger (54), arranged on the body (2) and connecting means (56, 57, 59) arranged between the trigger and the transmission system.
8. Hair styling appliance (1) according to one of claims 1 to 7, wherein the mandrel (3) comprises a drum (4) which comprises a proximal portion (5) and a distal portion (6), the distal portion being mounted sliding opposite the proximal portion along the longitudinal axis (X), the rings (7-13) being mounted sliding on the drum.
9. Hair styling appliance (1) according to claim 8, wherein the distal ring (13) is controlled to the distal portion (6) of the drum (4) and mounted sliding in connection opposite the proximal portion (5) of the drum, the at least one intermediate ring (8-12) and the proximal ring (7) being mounted sliding in connection opposite said proximal portion.
10. Hair styling appliance (1) according to one of claims 8 or 9, wherein the drum (4) is mounted in pivot connection along the longitudinal axis (X) opposite the body (2), the hair styling appliance comprising means for driving the drum in rotation (24, 25).
11. Hair styling appliance (1) according to one of claims 8 to 10, wherein the heating means comprise at least one heating element (31, 32) arranged inside the drum (4), said drum being made of a material ensuring heat conduction.
12. Hair styling appliance (1) according to claim 11, wherein the at least one heating element (31, 32) is arranged on the inner wall (30) of the drum (4).
13. Hair styling appliance (1) according to one of claims 1 to 12, wherein the heating means comprise a system for blowing hot air (36, 39) configured to project hot air along the outer wall of the mandrel (3).
14. Hair styling appliance according to claim 13, wherein the mandrel (3) comprises a base (3a) and a head (3b), the hot air blowing system being configured to project hot air at least through outlets (40, 46) arranged at the level of the base and of the head.
15. Hair styling appliance (1) according to one of claims 1 to 14, which comprises a blocking system (88) configured to act on the actuation device and connectively move the rings (7-13) in a connective position into a remote position with respect to a base (19) of the mandrel (3) or conversely into a tightened position opposite said base, during the activation of said actuation device.
16. Hair styling appliance (1) according to claim 15, which comprises a button for controlling (95) the blocking system (88) configured to activate and deactivate said blocking system.
17. Hair styling appliance (1) according to one of claims 1 to 16, which comprises a sleeve (96) configured to be returned over the mandrel (3), said sleeve comprising bristles.
18. Hair styling appliance (1) according to one of claims 1 to 17, which comprises between four and eight intermediate rings (8-12), preferably five intermediate rings.

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