EP3331397A1

EP3331397A1 - Hairstyling device for curling hair comprising an introduction slot equipped with guiding means

Info

Publication number: EP3331397A1
Application number: EP16745800.9A
Authority: EP
Inventors: Baptiste Bonnemaire; Xavier Vacheron
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2015-08-07
Filing date: 2016-07-12
Publication date: 2018-06-13
Anticipated expiration: 2036-07-12
Also published as: EP3331397B1; US20180228262A1; FR3039754A1; US10285481B2; BR112018002536A2; RU2710416C2; JP2018521809A; FR3039754B1; KR20180038016A; KR102545388B1; RU2018107262A; WO2017025670A1; CN108366657A; WO2017025670A9; CN108366657B; RU2018107262A3

Abstract

The invention relates to a hairstyling device (1) for curling hair, comprising a housing (2) which comprises a rolling chamber (8), an introduction slot (7) which extends over the length of the housing and which opens into the rolling chamber, and an extraction opening (9) arranged on a side end (2a) of the housing onto which the rolling chamber opens. The device comprises a mandrel (10) which extends into the rolling chamber, and a roller (11) arranged in the rolling chamber and configured to roll the strand of hair around the mandrel, during rotation thereof. The introduction slot comprises two walls (22a, 22b) which extend longitudinally and which cross the thickness of the housing, said side walls comprising guiding means configured to promote the penetration of the strand of hair into the rolling chamber.

Description

HAIR CLAMPING APPARATUS WITH AN INTRODUCING SLOT PROVIDED WITH GUIDE MEANS

Technical area

The present invention relates to the field of hair styling devices for looping hair locks, in particular those which have an automated winding device of the wick to perform its looping.

State of the art

Such hair styling devices for looping locks of hair, with an automated winding device of the wick to perform its looping, are already known to those skilled in the art. By way of example, patent applications published under the numbers FR2373986A1, DE2816289A1, WO2009077747A2, WO2012080751A2, WO2013186547A1 describe such hairdressing appliances. According to this type of design, the hairdressing apparatus comprises a housing which comprises a winding chamber having an opening for introducing the lock of hair, a mandrel arranged in this winding chamber and a winder configured to wind the wick. hair around the mandrel.

In the patent application FR2373986A1, the winder has a spiral shape with teeth so that when starting the device, the lock of hair can be grasped and wound around the heating mandrel.

In patent application DE2816289A1, the winder comprises a cylinder shape coaxially disposed around a portion of the mandrel in a winding chamber of the housing. The mandrel has a conical head which extends outside the winder and the winding chamber of the housing. The retractor comprises a notch with a hook which allows to wind the wick around the reel and around the conical head of the chuck, while performing a movement of the hair styling device against the scalp.

The hair styling devices described above in FR2373986A1 and DE2816289A, are complex to use and are not ergonomic. In addition, they do not allow effective looping of the hair because the wrapped hair is not held close to the mandrel for the proper formation of the loop. Furthermore, the positioning of the lock of hair relative to the housing so that it is grasped by the winder, is difficult because of the overall design and ergonomics of the device.

In the patent application WO2009077747A2, the housing of the hairdressing appliance comprises a slot arranged in the direction of the length of a winding chamber, through which penetrates the lock of hair to be wound around the mandrel. Lateral guide blades are arranged in V longitudinally outside the slot to receive a wick. The reel has the shape of a disk disposed around the mandrel. The disk is larger than the housing, so that it passes through the slot and the guide blades. The disc has a radial notch which opens out on its peripheral contour and forms a hook, so that said notch can be positioned through the slot and between the guide blades, which facilitates the positioning of the lock of hair in the notch for grasping said wick. Once the wick is in position in the notch, it is wrapped around the mandrel in the winding chamber, from the scalp to the end of the wick. The design of this winder forces the seized wick to wind on both sides of the disk, which generates a tension on the hair throughout their winding, which may therefore be damaged. In addition, the wick can easily get stuck in the winding chamber of the housing due to this winding on both sides of the disc. This design is also very cumbersome because of the presence of the guide blades and the disc-shaped winder. In the patent application WO2012080751 A2, the hair styling device to curl is in the form of a clamp formed of two arms. The box is arranged at the end of one of the two arms and has an insertion slot which extends longitudinally on the housing in the direction of a winding chamber with which said slot communicates. The housing comprises external guide elements which are arranged outside the slot forming a V and allow to guide the lock of hair for its introduction through the slot in the winding chamber. In a manner comparable to the hair styling apparatus described previously in WO2009077747A2, the winder is in the form of a disc with a hook shape which passes through the slot to be positioned between the guide elements. The second arm comprises at its end a second housing which has a receiving area of the guide elements and a bearing surface, which allows the bearing surface to push the lock of hair towards the slot while by being guided by the guide elements, then allowing the retractor to grip said wick for its winding around the mandrel. This design also has a large footprint. In addition, its design is complex, which complicates its industrialization and increases its manufacturing cost. According to this design, the housing comprises at one of its ends, an extraction opening to which opens the winding chamber, the free end of the mandrel being disposed near this extraction opening. A retractable finger is arranged at the contour of the extraction opening. In the extended position, this retractable finger makes it possible to block the rotation of the wick during its winding around the mandrel. In retracted or retracted position, the chuck is released, which allows to unmold the curly lock without risk of undoing or relaxing. Such a retractable finger requires the implementation of a complex and expensive mechanism.

In the patent application WO2013186547A1, as for the patent application WO2012080751 A2, the housing defines a winding chamber in which extends a mandrel whose one end is fixed to the housing and one end is free and adjacent to an opening of extraction on which the winding chamber opens. The reel is also in the form of a disc with a notch forming a hook which allows to grasp the wick to wind it around the mandrel. In a first implementation, the housing comprises a large insertion opening for positioning the wick in the winding chamber. In a second variant, the housing comprises an insertion slot which extends longitudinally and communicates with the winding chamber, above the mandrel, V-shaped guide elements being arranged outside the slot to facilitate the positioning of the wick facing the slot. According to these various variants, the curling hairdresser comprises an insertion device configured to push the wick inside the insertion opening or the insertion slot and position it in the notch on the disk. This design is complex and implements a large number of parts, making it difficult to industrialize and increasing its manufacturing cost. In addition, this design also increases its bulk.

SUMMARY OF THE INVENTION The main object of the present invention is to implement a hairdressing apparatus making it possible to easily introduce the lock of hair into the winding chamber of the casing, to then allow it to be wound around the mandrel by the winder. .

Another objective is to easily grasp the wick for its winding. Another objective is to provide a curly hairstyling device for effective treatment of the hair, while being easy and convenient to use.

Another objective is to avoid any jamming or entanglement of the wick inside the winding case, and to make regular curls without damaging the hair.

Another object of the present invention is to loop the lock of hair substantially along its entire length without reducing the efficiency of the hairdressing apparatus and without risking burning the scalp. Another objective is to implement a hairstyling device which makes it possible to lock the wick during its winding around the mandrel and which facilitates the demolding of the curly wick, having a simple design, easy to implement and inexpensive, especially in comparison of the retractable finger implemented on the hairdressing apparatus described in WO2012080751 A2.

To these effects, the invention relates to a hairdressing appliance for looping a lock of hair, comprising a housing which comprises a winding chamber having a shape of revolution along a second axis X2. The housing also includes an insertion slot which extends over the length of the housing in the direction of the second axis X2 and which opens into the winding chamber. The housing also comprises an extraction opening arranged at a lateral end of the housing on which the winding chamber opens. According to the invention, the hairdressing appliance also comprises a mandrel which has an end fixed to the housing and a free end disposed near the extraction opening. The mandrel extends in the winding chamber along a third axis X3 defined in a plane P passing through the second axis X2 and the slot. According to the invention, the hairdressing apparatus also comprises a winder arranged in the winding chamber and rotatably mounted in at least one direction along the third axis X3. The reel is configured to wind the wick around the mandrel, during its rotation, to achieve the looping.

Remarkably, according to the invention, the insertion slot comprises two walls which extend longitudinally in the direction of the second axis X2 and which pass through the thickness of the housing so as to communicate with the winding chamber. In addition, the walls comprise guiding means configured to promote the penetration of the wick into the winding chamber. Thus, unlike the prior art which provides complementary elements forming a V disposed outside the slot, the invention provides for direct integration of guide means in the thickness of the slot. housing, which greatly reduces the clutter of the hairdressing apparatus.

In one embodiment of the hairdressing apparatus according to the invention, these guide means are implemented by the two walls themselves which form a V between them.

In one embodiment of the hairdressing appliance according to the invention, the slot comprises a longitudinal end portion, opposite to the position of the extraction opening, in which the two walls are interconnected and form an integral V in one piece with the bottom of the V which is rounded and configured to guide and let the wick spin during its winding around the mandrel and the winder. This longitudinal portion is disposed upstream of the mandrel and the winder, on the housing. This design also helps to reduce any tension on the wick during its winding around the reel and the mandrel. According to one variant, the slot comprises a longitudinal end portion, opposite to the position of the extraction opening, in which the two walls are interconnected and form a curved bottom, more or less spoon-shaped, configured to guide and let the wick spin during its winding around the mandrel and the winder. This longitudinal portion is disposed upstream of the mandrel and the winder, on the housing. In one embodiment of the hairdressing apparatus according to the invention, the insertion slot comprises two walls which extend longitudinally in the direction of the second axis X2 and which each have ribs arranged transversely with respect to the second axis X2. These ribs are distributed along each wall and are configured to promote the penetration of the wick into the winding chamber. These ribs have the advantage of implementing linear contacts between the slot and the lock of hair during its introduction, which reduces friction and limits the risk of jamming of the wick at the slot. Preferably, according to this embodiment, the ribs each have a disc portion shape, which allows to gradually reduce the passage section of the slot, in the manner of a V arranged between said two walls, and thus allows guiding the wick during its introduction into said slot. Form variants could be envisaged for these ribs, while also promoting a reduction in the passage section of the slot, for example a triangular shape. Preferably, according to this embodiment, the ribs on each wall have between them variable dimensions with a variable distribution on each wall.

In one embodiment of the hairdressing apparatus according to the invention, the insertion slot comprises two walls which extend longitudinally in the direction of the second axis X 2 and which each have corrugations propagating along said walls. These corrugations are configured to promote the penetration of the wick into the winding chamber. These undulations have the advantage of reducing the contacts between the slot and the lock of hair during the introduction of the latter, which reduces friction and limits the risk of jamming of said lock at the slot.

In a preferred embodiment, the slot combines the characteristics of at least two of the three aforementioned embodiments, namely the presence of the two walls forming a V and / or the presence of the corrugations on the two walls and / or the presence of the ribs on these two walls and the presence of a portion in which the two walls are interconnected and form an integral V in one piece. These various characteristics each constitute guide means arranged in the slot and configured to promote the penetration of the wick into the winding chamber. Of course, other variants of guide means could be envisaged without departing from the scope of the invention.

In one embodiment of the hairdressing apparatus according to the invention, the two walls are removably assembled vis-à-vis the housing. This allows to replace the shape of the guide means in the slot to best adapt to the type of hair to curl. This also makes it possible to provide walls of a different color from that of the housing, so as to display more easily the slot when the user is looking in a mirror by making the loop of the lock of hair arranged behind the head.

In one embodiment of the hairdressing apparatus according to the invention, the winder is hollow and has a surface of revolution along the third axis X3. The reel is arranged with a first spacing around the mandrel in the winding chamber, coaxially with said mandrel along the third axis X3. The winder is rotatably mounted in at least one direction along the third axis X3, preferably in both directions of rotation. The winder comprises on its surface of revolution hooking means which are configured to catch the wick in the initial position of the winder, then to rotate said wick during the rotation of said winder. In addition, the retractor is configured to successively grasp or hook the proximal end of the wick, wrap concomitantly the wick around the mandrel and said reel, and then completely wrap said wick around said mandrel, during its rotation. This design of the hairdressing apparatus according to the invention advantageously makes it possible to break down the winding chamber into two concentric chambers, an inner chamber defined by the first spacing between the mandrel and the winder and an outer chamber defined by the spacing. external to the reel, inside the winding chamber. This makes it possible to wrap the lock of hair around both the mandrel and the winder. The reel, which surrounds the mandrel in its length, has a greater winding diameter than that of the mandrel, which allows to wind the hair around the reel with less tension. There is little risk of damaging the hair. In addition, the longitudinal shape of the mandrel and the winder makes it possible to wind the lock of hair on relatively large surfaces, which avoids any possible wedging of hair.

In one embodiment of the hairdressing apparatus according to the invention, the hairdressing apparatus comprises a handling handle which extends longitudinally along a first axis X1 and which is secured to the housing. The manipulating handle may have various forms aesthetic and ergonomic so as to allow proper grip. This slot is positioned on the housing opposite to the position of the handle. The plane (P) is defined by the first axis X1 and the second axis X2. In addition, the third axis X3 is inclined with respect to the first axis X1 at an angle a so that the free end of the mandrel is further away from the handle than the fixed end of the mandrel. This design of the hairdressing appliance according to the invention advantageously makes it possible to introduce the wick into the insertion slot, while positioning it obliquely with respect to the mandrel and the reel, and then to introduce the wick into the attachment means on the surface of revolution of the winder, without the need to incline the wick relative to the slot. This greatly facilitates the handling of the device, the user introducing the wick into the slot naturally holding the handle of manipulation, without any complications regarding its positioning, then comes to press the extraction opening against the scalp so that the end of the lock of hair, located near the roots, is positioned in the attachment means.

In one embodiment of the hairdressing appliance according to the invention, the angle a is between 50 and 80 degrees, preferably 70 degrees.

In one embodiment of the hairdressing apparatus according to the invention, the second axis X 2 is arranged perpendicularly to the first axis X 1. According to this configuration, the housing is disposed perpendicular to the handling handle, the mandrel and the reel being inclined in the winding chamber. In an alternative embodiment of the hairdressing apparatus according to the invention, the second axis X2 and the third axis X3 are parallel to each other, preferably coincidental. This configuration keeps the mandrel and the reel in the axis of the winding chamber of the housing, and tilt the housing relative to the handle while retaining the advantage of facilitating the positioning of the lock of hair in the slot and in the attachment means of the winder. Many variants can also be envisaged without departing from the scope of the invention. As such, in variant embodiments of the hairdressing apparatus according to the invention, the second axis X 2 is inclined with respect to the first axis X 1, on the same side as the third axis X 3, an angle Φ between the angle of inclination α of said third axis X3 and 90 degrees (α < ^φ <90 °).

In one embodiment of the hairdressing apparatus according to the invention, the winder comprises a free edge disposed on the free end of the mandrel side. In addition, the retractor comprises a notch constituting said hooking means, which extends over the surface of revolution and opens out on the free edge, said notch being configured to let the bit into the first spacing between the mandrel and the winder, in the initial position of said winder. According to this embodiment, gripping means are formed on at least one of the two ends of the notch, intersecting the free edge, preferably on both ends. These gripping means preferably have the form of hooks. A single hook is possible when the rotation of the winder is in one direction. Preferably, the rotation of the reel takes place in both directions along the third axis X3, and two hooks are arranged vis-à-vis at the two aforementioned ends of the notch. Preferably, according to this embodiment, the notch comprises a trapezoidal shape with its small base adjacent to the free edge. However, it is possible to envisage variant shapes of the notch, for example a circular or oval shape. In one embodiment of the hairdressing apparatus according to the invention, the winder has a cylindrical shape along the third axis X3. In a preferred embodiment, the winder comprises a conical shape along the third axis X3, the conical shape having an expansion in the direction of the free end of the mandrel. In one embodiment of the hairdressing apparatus according to the invention, it comprises a stationary finger arranged at the contour of the extraction opening, or in the direct vicinity of this contour, in front of the free end of the mandrel. The shape of the immovable finger is configured vis-à-vis the free end of the mandrel to block the rotation of the wick around the mandrel without risk of passing said finger during the rotation of the winder, and to promote the demolding of the wick buckled along the mandrel at the end of the operation of looping. The presence of such a stationary finger advantageously makes it possible to simplify the design of the hairstyling appliance, unlike the existing systems of the prior art, which are much more complex, such as, for example, the apparatus described in the patent application WO2012080751 A2, which provides a retractable finger.

In one embodiment of the invention, the stationary finger is arranged perpendicular to the third axis X3 and parallel to the plane P. In addition, the stationary finger has at least one blocking lateral face configured so that the line d1, which passes through the base of the blocking lateral face and perpendicularly cutting the third axis X3, forms with said blocking lateral face an angle β between 0 and 35 degrees, preferably 25 degrees. This advantageously makes it possible to slide the strand of hair towards the base of the immobile finger rather than towards its end, which avoids passing over said finger during the winding of the wick. Preferably, the winder rotates in both directions of rotation around the mandrel. In addition, the stationary finger comprising two locking lateral faces arranged symmetrically with respect to the plane P.

In one embodiment of the invention, the stationary finger is arranged perpendicular to the third axis X3 and parallel to the plane P. In addition, said finger is configured to extend from the peripheral contour of the free end of the mandrel towards the third X3 axis, a height h1 between 6 mm and 18 mm, preferably 12 mm. This also helps to prevent the wick goes beyond the finger motionless during winding, without being harmful to the release of the curly lock. In one embodiment of the invention, the stationary finger is arranged perpendicular to the third axis X3 and parallel to the plane P. In addition, said finger is spaced from the free end of the mandrel by a distance e1 between 1 mm and 5 mm, preferably 3 mm. This also allows a good understanding between the locking of the wick during its winding around the mandrel, without risk of overriding the finger still, and the proper demolding of the curly lock without the risk of relaxing it. Preferably, the mandrel comprises a diameter D of between 20 mm and 25 mm, preferably 22 mm, for a stationary finger having the aforementioned characteristics.

Preferably, the stationary finger comprises an inner face disposed opposite the free end of the mandrel. This inner face has a curved shape configured to accompany the release of the lock of curly hair through the extraction opening. The inner face comprises an end contiguous to the contour of the extraction opening, which extends in the form of a more or less pronounced nose, which prevents the curly lock from passing under the immobile finger during demolding and does not remains stuck.

Preferably, according to this embodiment of the hairdressing appliance, removable fixing means are arranged between the immovable finger and the contour of the extraction opening. This advantageously allows to replace the finger with another having slight changes in shape, for example to better adapt the hair styling device to the type of hair to curl.

According to the hairdressing apparatus object of the invention, it comprises heating means configured to heat the lock of hair inside the winding chamber. Preferably, the heating means are arranged in the mandrel. However, it is possible to envisage heating means arranged in the winding chamber for heating the wick during its concomitant winding around the mandrel and the winder.

In one embodiment of the hairdressing apparatus according to the invention, the housing further comprises an inner cage arranged in the winding chamber around the winder, with a second spacing relative to said winder. The inner cage is configured to extend the guide of the lock of hair inside the winding chamber towards the reel, after passing through the slot. This also allows to confine the wick inside the housing around the reel, without risk of dispersion in the winding chamber. According to the hairdressing apparatus object of the invention, it comprises means for gripping the housing consisting of a handle which extends in the plane P in the direction opposite to the position of the slot. This allows a better ergonomics of the hairdressing apparatus that can be handled easily when introducing the lock of hair into the slot. However, other configurations of gripping means could be envisaged without departing from the scope of the invention.

Brief description of the figures

The following description makes it possible to highlight the object of the invention, in support of figures, among which:

- Figure 1 illustrates a three-dimensional view of a hairdressing device to be buckled, according to a first embodiment;

- Figure 2 illustrates a sectional view of the portion of the hair styling device to be buckled corresponding to the housing, according to this first embodiment;

FIGS. 3 and 4 illustrate the casing of the hairdressing appliance to be buckled in front and rear view views, according to this first embodiment;

FIG. 5 illustrates a three-dimensional view of a preferred embodiment of the winder;

- Figure 6 illustrates a three-dimensional view of the mandrel, the reel, the inner cage and the immovable finger in their assembly position within the housing of the hair styling device to be buckled;

FIGS. 7 and 8 respectively show a side view and a front view of the mandrel and the immovable finger in their assembly position inside the casing of the hairdressing appliance to be buckled;

- Figure 9 illustrates an alternative embodiment of the immobile finger;

FIG. 10 illustrates a three-dimensional view of a second embodiment of the hairdressing appliance according to the invention;

- Figure 1 1 illustrates the part of the hairdressing device to be buckled corresponding to the housing, according to this second embodiment, highlighting the design of the slot; FIG. 12 illustrates a variant of the slot on the apparatus illustrated in FIGS. 10 and 11.

Detailed Description In the rest of the description, the same references are used to describe the similar characteristics according to the different embodiments.

In the remainder of the description, the term "apparatus" will be used to designate the hair styling device according to the invention, unless otherwise specified.

In FIG. 1, the apparatus 1 comprises a housing 2 and a handling handle 3. The appliance 1 is electrically connected to a power supply by means of an electric cable 4 and comprises control buttons 5, 6 making it possible to operating heating means and means for driving in rotation of a winder described in more detail below.

As illustrated in particular in FIGS. 2 to 4, the manipulation handle 3 extends longitudinally along a first axis X1.

As illustrated in FIGS. 1 to 4, the casing 2 comprises a slot 7 allowing the introduction of the lock of hair (not shown) in a winding chamber 8 defined inside the casing 2, in which is achieved the looping of said wick. The housing 2 also comprises, on the side of its front lateral face 2b, an extraction aperture 9 through which the wick is demolded or removed after being looped. The winding chamber 8 comprises more or less a cylindrical form of revolution which is defined along a second axis X2 corresponding to the longitudinal direction of said housing 2. The first axis X1 and the second axis X2 are perpendicular to each other and define a plane P, illustrated in Figures 1 to 3, constituting a plane of symmetry of the housing 2, and the handling handle 3. The slot 7 is disposed in this plane P on the housing 2, the opposite side to the position of the handle 3.

As illustrated in Figures 1 to 3 and 6, the apparatus 1 comprises a mandrel 10 which comprises a fixed end 10a connected to the housing 2. The mandrel 10 also comprises a free end 10b which is positioned near the the extraction aperture 9 in the winding chamber 8. The mandrel 10 extends longitudinally inside the winding chamber 8 along a third axis X3 which defines with the first axis X1 an angle of inclination between 50 ° and 80 °. Preferably, this angle of inclination a is 70 °. This inclination of the mandrel 10 advantageously allows to position its free end 10b, more distant from the end 3a of the handle 3, which will facilitate the positioning of the wick for its winding, as specified below . The third axis X3 is defined in the same plane P illustrated in FIGS. 1 to 3, constituting a plane of symmetry of the housing 2, as well as of the handling handle 3 which extends towards the housing 2 according to this plane. P in the direction opposite to the position of the slot 7. The slot 7 is disposed symmetrically with respect to this plane P, as illustrated in particular in FIGS. 3 and 4. As illustrated in FIGS. 1 to 3, 5 and 6, the apparatus 1 comprises a winder 1 1 which is hollow and has a shape of revolution along the third axis X3. The reel 1 1 is positioned coaxially with respect to the mandrel 10, along this third axis X3, and defined therewith a first spacing 12 illustrated in particular in Figures 2 and 6. As illustrated in particular in Figure 5, the At its first longitudinal end 1 1a, the reel 1 1 comprises splines 13 arranged to allow the reel 1 1 to be secured to a toothed wheel (not shown) which meshes with an endless screw (not shown) driven in rotation. by a motor (not shown), which drives the rotation of the reel 1 1 according to the third axis X3. Preferably, the direction of rotation of the motor is reversible, which makes it possible to reverse the direction of rotation of the winder 1 1. The motor, the toothed wheel and the worm are not illustrated for a better reading of the figures, they being also within the reach of the skilled person. Other gearing means can be envisaged between the motor and the winder January 1, also within the reach of the skilled person.

As illustrated particularly with reference to Figures 2, 5 and 6, the reel 1 1 has a conical shape which extends in expansion along the third axis X3 towards the free end 10b of the mandrel 10. The reel 1 1 comprises a notch 14, or cutout, which extends over its surface of revolution and which opens on the free edge 15 at the second longitudinal end 1 1 b of said winder 1 1. This notch 14 preferably comprises a trapezoidal shape with its small base 14a, shown in phantom-lines in FIG. 5, disposed at the free edge 15. However, other forms could be envisaged for this notch 14, for example a shape more or less cylindrical or oval. Similarly, the reel 1 1 could have a cylindrical surface of revolution. However, preference will be given to the conical surface of revolution and the trapezoidal notch 14 which favor a better winding of the wick along the reel 1 1. At the two ends 14b, 14c of the notch 14 secant with the free edge 15, two hooks 16a, 16b are arranged vis-à-vis in the extension of said free edge 15, preferably with a slight shift outwards by relative to the latter, as illustrated in Figure 5. These two hooks 16a, 16b are spaced apart by a width corresponding more or less to that of the slot 7. In the initial position of the winder 1 1, at the beginning of the looping operation, the notch 14 and the two hooks 16a, 16b are arranged symmetrically with respect to the plane P, in the extension of the slot 7, as illustrated in FIG. 3, which makes it possible to introduce the portion of the lock of hair located near the scalp, in this notch 14. The rotational drive of the reel 1 1 then allows one of the two hooks 16a, 16b, in the direction of rotation of the motor, to grasp the bit to start winding, which is detailed below. The rotation of the reel 1 1 in both directions around the third axis X3 makes it possible to produce loops in both directions. One could, however, provide a single direction of looping, in which case a single hook would suffice and the configuration of the notch 14 could be adapted. In the initial position, the angle of inclination α between the two axes X1 and X3, as mentioned above, advantageously makes it possible to position the notch 14 and the two hooks 16a, 16b situated in the vicinity of the free edge 10b of the mandrel 10 and close to the slot 7 with an inclination relative to the manipulation handle 3. This facilitates the insertion of the wick into the slot 7 by positioning it obliquely with respect to the reel 1 1 for insertion into the notch 14, while normally manipulating the handling handle 3. As illustrated in FIGS. 2 and 6, the apparatus 1 comprises an internal cage 17 which is disposed in the winding chamber 12. Preferably, this inner cage 17 comprises a part 18 having a cylindrical revolution shape according to FIG. third axis X3, disposed coaxially around the reel 1 1 along the third axis X3, with a second spacing 19 relative to said reel 1 1. Thus the first spacing 12 between the mandrel 10 and the reel 1 1 defines an inner chamber and the second spacing 19 between the reel 1 1 and the portion 18 of the inner cage 17 defines an outer chamber. The inner cage 17 further comprises two flanges 20a, 20b which extend in the winding chamber 8 parallel to the plane P and symmetrically along this plane P, the respective upper edges 21a, 21b of these flanges 20a, 20b being configured to be positioned adjacent the slot 7, which allows to best guide the wick to the reel 1 1 by confining said wick in the winding chamber 12 within the second spacing 19 This internal cage 17 also makes it possible to arrange the components of the apparatus 1 in the casing 2, avoiding any risk of contact of the wick with these components during the positioning of said wick in the winding chamber. 8.

As illustrated in Figures 1 to 4, the slot 7 comprises two walls 22a, 22b which are arranged vis-vis, symmetrically with respect to the plane P, in the thickness of the housing 2. These walls 22a, 22b extend over the entire length of the housing 2 and form between them, in a sectional plane P1 perpendicular to the plane P, a V which promotes the introduction of the wick into said slot 7. In their parts 23a, 23b, located on the side of the lateral face 2a of the housing 2 opposite the side face 2b of said housing 2 which has the extraction opening 9 and which comes into contact with the scalp during the buckling, the walls 22a, 22b are connected and form between them an integral V in one piece with a bottom 24 which is rounded and which guides the hair strand by leaving it spin in the direction of the length of the housing 2, that is to say in the direction second axis X2. These parts 23a, 23b are located upstream of the mandrel 10 and the reel 1 1, in the direction of advance of the wick during its winding. Preferably, these two walls 22a, 22b consist of a single piece independent of the housing 2, which allows implement the slot 7 in a different color from that of the housing 2, so as to visualize more easily when introducing the lock of hair. In addition, removable fixing means are arranged between the housing 2 and the walls 22a, 22b to allow their removal, for example to replace them with others having a different angle of V or other wick guiding characteristics. in the slot 7. These removable attachment means (not shown) may consist of screwing or snapping the walls 22a, 22b on the housing 2, for example. As illustrated in Figures 1 to 4, transverse ribs 25, 26 are implemented respectively on the two walls 22a, 22b, these transverse ribs 25, 26 each having a disc portion shape. In FIGS. 1 to 4, it can be seen that the wall 22b comprises eight transverse ribs 26, in the form of a disk portion, which have dimensions and spacings between them which are different. It is the same for the transverse ribs 25 on the other wall 22a. These transverse ribs 25, 26 allow to have linear contacts with the lock of hair, which reduces the friction of the wick in the slot 7 during its introduction. The disk portion shape of these transverse ribs 25, 26 also makes it possible to have a more or less V-shaped flared shape between the transverse ribs 25, 26 arranged facing the two walls 22a, 22b of the slot. 7, which also promotes the positioning of the wick in the slot 7. This disc shape could be replaced by the transverse ribs 25, 26 by a triangular, which would also make it possible to form a V shape between the transverse ribs 25, 26 disposed vis-a-vis the walls 22a, 22b.

As illustrated in Figures 1 to 3, 6 and 7, the apparatus 1 comprises a stationary finger 27, or fixed finger, consisting of a rigid piece which is fixed at the contour 9a of the extraction opening 9. This stationary finger 27 has several functions. Firstly, the stationary finger 27 makes it possible to immobilize the wick in rotation during its winding so as to prevent the wick from rotating around the mandrel 10. In addition, this stationary finger 27 must ensure the demolding of the wick. buckled without damaging it. Finger stationary 27 is oriented perpendicular to the mandrel 10, that is to say perpendicularly to the third axis X3, as illustrated in particular in Figure 2 and 7. The inclination of the immovable finger 27 therefore depends on the inclination of the angle a. During the winding of the wick around the mandrel 10, the latter is blocked by one of the two locking lateral faces 28a, 28b of said stationary finger 27, according to the direction of rotation of the winder 1 January. These two lateral blocking faces 28a, 28b are arranged symmetrically with respect to the plane P. In order for the hair to have no facility to pass the still finger 27 during the winding, it is best that the angle β formed between the locking side face 28a and a straight line d1 from the center 29 of the mandrel 10 to the base 30 of the locking side face 28a, as illustrated in FIG. 8, forms an angle of between 0 ° and 35 °. Preferably this angle β is 25 °. It is the same for the second lateral locking face 28b which is arranged symmetrically to the first locking side face 28a, along the plane P. In this way, the lock of hair tends to slide towards the base 30 of the finger stationary 27 only towards its end 27a.

Always to make sure that the lock of hair does not tend to pass over the immobile finger and rotate around the mandrel 10 during winding, it is necessary that the immovable finger 27 sufficiently covers the free end 10b of the chuck 10, and that its distance to the chuck 10 is the smallest. In order to allow this sufficient recovery, the immovable finger 27 extends from the cylindrical contour of the mandrel 10 over a height h1 between 6 mm and 18 mm, preferably a height h1 equal to 12 mm. A higher height h1 may penalize demolding, and a lower height h1 may not lock the wick enough. Regarding the distance to the mandrel 10, the stationary finger 27 is spaced from the free end 10b of the mandrel 10 by a distance e1 of between 1 mm and 5 mm, preferably this distance e1 being equal to 3 mm. This distance e1 depends on the height h1 retained for the stationary finger 27. Preferably, a ratio r of four is provided between the height h1 and the distance e1 (r = h1 / e1 = 4), this ratio r being able to be between two and five (2 <r <5). For this aforementioned configuration of the immovable finger 27 vis-à-vis the mandrel 10, said mandrel 10 has a diameter D between 20 mm and 25 mm, preferably 22 mm. The immovable finger 27 comprises an inner face 31 arranged opposite the free end 10b of the mandrel 10. The inner face 31 is curved or concave, as illustrated in particular in FIGS. 3 and 8, which allows to accompany the expulsion of the lock of curly hair during demolding. The lower end 31a of this inner face 31 must be as far as possible below the mandrel 10, so that during demolding, the hair does not pass behind this immovable finger 27, which would block them. This lower end 31a should not be too marked a tip, but have a rounded shape to properly direct the curly lock on the inner face 31, and not on the underside of the immobile finger 27. In the embodiment variant illustrated in FIG. 9, the stationary finger 27 includes an internal face

31 curved with its lower end 31a which extends into a spout shape

32 curved disposed in the continuity of said inner face 31, which allows to promote the removal of the lower end 31a to the inner face1 1 c of the winder 1 1 c, shown in particular in Figures 5 and 6.

Preferably, the stationary finger 27 is fixed detachably vis-à-vis the contour 9a of the extraction opening 9 or close thereto. For this purpose, the stationary finger 27 comprises a lower portion 33 provided with an orifice 34 allowing a fastening by screws 35 vis-à-vis the front lateral face 2b of the casing 2, as illustrated in FIGS. 8. One could consider other removable attachment means without departing from the scope of the invention. This removable attachment advantageously makes it possible to replace the immovable finger 27 to best adapt it to the type of hair to be curled or when it is worn, in order to limit as much as possible the friction of the curled lock during demolding.

As illustrated in FIG. 2, the apparatus 1 comprises a heating element 36 arranged inside the mandrel 10 so as to heat it and to heat the lock of hair. Such a heating element 36 is known to those skilled in the art, it does not so will not be detailed. It is also possible to envisage other heating means arranged in the winding chamber 8, for example on the inner cage 17 so as to heat the wick in the second spacing 19 between said inner cage 17 and the winder 11.

The housing 2 of the apparatus 1 is manipulated by the handling handle 3, its side face 2a, which has the extraction opening 9, being positioned against the scalp during the various operations of the looping. The arrangement of the handle 3 in the extension of the slot 7 facilitates the handling of the apparatus 1. However, it would be possible to provide alternative arrangements of the handling handle vis-à-vis the housing 2, without departing from the scope of the invention. At the beginning of the looping operation, after adjustment of the heating element 36 to a set temperature by the user, the wick is positioned inside the slot 7 and then guided by the flanges 20a, 20b into the second 19. Thanks to the inclination of the reel 1 1 and the mandrel 10 vis-à-vis the handling handle 3, the introduction of the wick in the notch 14 occurs naturally, without the need for inclination the wick relative to the housing 2 and the slot 7 to perform its proper introduction into the slot 14. The rotation of the reel 1 1 is then triggered by one of the control buttons 5 or 6, which allows at one of the hooks 16a, 16b - depending on the direction of rotation - to grasp or catch the wick near the scalp. The configuration of the reel 1 1 with its surface of revolution disposed around the mandrel and its notch 14, advantageously allows to curl the lock of hair around the mandrel 10 in the inner chamber defined by the first spacing 12, and around the surface of revolution of the reel 1 1 in the outer chamber defined by the second spacing 19. During this concomitant winding on the reel 1 1 and the mandrel 10, the wick spins in the bottom 24 of the walls 22a, 22b of the slit 7. Once the end of the wick has spun into the bottom 24 and is wound around the reel 1 1, said reel continues to rotate, which allows to continue to wind said wick around the mandrel 10 to the reel 1 1 then stops rotating, the heating element 36 then remaining activated while keeping the bit wound around the mandrel 10 for a few minutes. seconds. Then the apparatus 1 is remote from the scalp, the curly lock is then moved along the mandrel 10 towards the stationary finger 27 which, when the apparatus is moved away from the head, will accompany the loop towards the extraction opening 9 to properly unmold the curly lock.

Alternative embodiments of guide means are conceivable within the scope of the invention. In particular embodiments of the slot 7 may be provided with only V-shaped walls 22a, 22b, without any transverse rib 25, 26, or conversely transverse ribs 25, 26 may be provided on walls parallel to one another, forms transverse ribs disc portion or triangle alone to define a flared or V-shaped. It is also possible to provide corrugations 37, 38 arranged along the length of the two walls 22a, 22b between the transverse ribs 25, 26 , as illustrated in Figures 1 and 2, which also contribute to reducing the friction of the lock of hair on said two walls 22a, 22b. One could also provide these undulations 37, 38 on the two walls 22a, 22b forming a V, without the presence of the transverse ribs 25, 26.

In the variant embodiment of the apparatus 1, illustrated in FIGS. 10 and 11, the slot 7 comprises two walls 22a, 22b which are inclined at a V angle to each other and which have corrugations 37, 38 as described above for the variant embodiment of Figures 1 to 9. Similarly, we find in Figure 1 1 the parts 23a, 23b of the two walls 22a, 22b which consist of a single piece with a bottom 24 common, as described for the variant previous, with a slight difference since the bottom 24 is not rounded but flat, as can be seen in this figure 1 1.

In another embodiment of the apparatus 1, illustrated in Figure 12, the slot 7 comprises two walls 22a, 22b which are inclined V between them and which have corrugations 37, 38 as described above. In addition, the parts 23a, 23b of the two walls 22a, 22b consist of a single piece with a bottom 24 common which has a curved or spoon shape, as can be seen in this figure 1 1, this form also allowing guiding the lock of hair in the slot 7, during its winding around the reel 1 1 and the mandrel 10. According to these two aforementioned embodiments of the apparatus 1, the design variants of the reel 1 1 and the stationary finger 27, as described above, also apply.

One can also provide variants of immovable finger 27 or other locking means without departing from the main scope of the invention.

Other embodiments of the apparatus 1 are also conceivable without departing from the scope of the invention. In the embodiment of FIGS. 1 to 4, the second axis X 2, in which the revolution form of the housing 2 is defined, is perpendicular to the first axis X 1, that is to say inclined by an angle θ equal to 90 ° with respect to said second axis X2. In the variant embodiment illustrated in FIGS. 10 and 11, the second axis X2 merges with the third axis X3 of the mandrel 10 and the reel 1 1, that is to say that the second axis X2 is inclined by an angle Φ with respect to the first axis X1 corresponds to the inclination angel a of the third axis X3 with respect to said second axis X2. One could also provide a second axis X2 parallel to the third axis X3, without being confused with it. One could also provide an angle of inclination Φ of the second axis X2 with respect to the first axis X1 which is between the angle of inclination α of the third axis X3 and 90 °, that is to say α < ^φ < 90 °. Thus, in the range of the angle α between 50 ° and 80 °, as defined above: when the angle α is 50 °, the angle Φ may be between 50 ° and 90 °; when the angle a is 80 °, the angle Φ may be between 80 ° and 90 °; and for the preferred value of the angle a equal to 70 °, the angle Φ may be between 70 ° and 90 °. It is also possible in other variants to provide an angle of inclination α between the first axis X1 and the third axis X3 which is equal to 90 °, that is to say that the two axes X1 and X3 are perpendicular between without departing from the essential scope of the invention, with a winder January 1 having a cylindrical or conical surface of revolution.

Claims

Hairdressing apparatus (1) for looping a lock of hair, comprising:

a housing (2) having a winding chamber (8) having a shape of revolution along a second axis (X2), an insertion slot (7) extending along the length of the housing in the direction of the second axis and which opens into the winding chamber, and an extraction opening (9) arranged at a lateral end (2a) of the housing on which the winding chamber opens,

a mandrel (10) having an end (10a) attached to the housing and a free end (10b) disposed near the extraction opening and extending into the winding chamber along a third axis (X3) defined in a plane (P) passing through the second axis and the slot, a winder (1 1) arranged in the winding chamber and rotatably mounted in at least one direction along the third axis, said winder being configured to wind the wicking around the mandrel, during its rotation, characterized in that the insertion slot comprises two walls (22a, 22b) which extend longitudinally in the direction of the second axis and which pass through the thickness of the housing, said walls comprising guide means configured to promote the penetration of the wick into the winding chamber.

Hairdressing appliance (1) according to claim 1, wherein the two walls (22a, 22b) form between them a V.

Hairdressing appliance (1) according to claim 2, wherein the slot (7) comprises a longitudinal end portion, opposite the position of the extraction opening (9), in which the two walls (22a, 22b ) are connected together and form an integral V in one piece with a bottom (24) configured to guide and let the wick spin during its winding around the mandrel (10) and the reel (1 1), said portion longitudinal axis being disposed upstream of the mandrel and the winder. hairstyle (1) according to claim 2, wherein the slot (7) comprises a longitudinal end portion, opposite the position of the extraction opening (9), wherein the two walls (22a, 22b ) are interconnected and form a curved bottom configured to guide and let the wick spin during its winding around the mandrel (10) and the reel (1 1), said longitudinal portion being arranged upstream of the mandrel and the reel.

5. Hairdressing appliance (1) according to one of claims 1 to 4, wherein the two walls (22a, 22b) each have transverse ribs (25, 26) to the second axis (X2) and distributed along each wall, said ribs being configured to promote the penetration of the wick into the winding chamber (8).

Hairdressing appliance (1) according to claim 5, wherein the ribs (25, 26) each have a disc portion shape.

7. Hairdressing apparatus (1) according to one of claims 5 or 6, wherein the ribs (25, 26) on each wall (22a, 22b) have between them variable dimensions with a variable distribution on said wall.

8. Hairdressing appliance (1) according to one of claims 1 to 7, wherein the insertion slot (7) comprises two walls (22a, 22b) which extend longitudinally in the direction of the second axis (X2). and which each have corrugations propagating along said walls, said corrugations being configured to promote penetration of the wick into the winding chamber (8).

9. Hairdressing appliance (1) according to one of claims 1 to 8, wherein the two walls (22a, 22b) are removably assembled vis-à-vis the housing.

10. Hairdressing appliance (1) according to one of claims 1 to 9, wherein the reel (1 1) is hollow and has a surface of revolution along the third axis (X3), and is arranged with a first spacing (12) around the mandrel (10) in the winding chamber (8), coaxially with said mandrel along the third axis, said winder comprising on its surface of revolution fastening means (14) which are nfigurés to catch the wick in the initial position of the reel, then to rotate said wick during its rotation, said reel being configured to successively grasp the proximal end of the wick, co-wrap the wick around the mandrel and said reel, then completely wrap said wick around said mandrel during its rotation.

1 1. Hairdressing appliance (1) according to claim 10, which comprises a handle (3) which extends longitudinally along a first axis (X1) and which is secured to the housing (2) on the opposite side to the slot (7) , the plane (P) being defined by the first axis (X1) and the second axis

(X2), the third axis (X3) being inclined with respect to the first axis (X1) at an angle (a) so that the free end (10b) of the mandrel (10) is further away from the handle than the fixed end (10a) of the mandrel.

Hairdressing apparatus (1) according to claim 11, wherein the angle (a) is between 50 and 80 degrees, preferably 70 degrees.

13. Hairdressing appliance (1) according to one of claims 1 1 or 12, wherein the second axis (X2) is perpendicular to the first axis (X1).

14. Hairdressing appliance (1) according to one of claims 1 1 or 12, wherein the second axis (X2) and the third axis (X3) are parallel to each other, preferably coincident.

Hairdressing appliance (1) according to one of claims 1 1 or 12, wherein the second axis (X2) is inclined relative to the first axis (X1), on the same side as the third axis (X3), d an angle (Φ) between the angle of inclination (a) of said third axis and 90 degrees (α < ^φ <90 °).

Hairdressing appliance (1) according to one of claims 10 to 15, wherein the winder (1 1) comprises a free edge (15) disposed on the side of the free end (10b) of the mandrel (10). , and a notch (14) which extends over the surface of revolution of said reel and opens out on the free edge, said notch being configured to let the bit into the first spacing (12) between the mandrel and the reel, in an initial position of said winder. hairstyle (1) according to claim 16, wherein gripping means (16a, 16b) are formed on at least one of the two ends (14b, 14c) of the notch (14), intersecting the free edge (15), preferably on both ends.

18. Hairdressing appliance (1) according to one of claims 16 or 17, wherein the notch (14) comprises a trapezoidal shape with its small base (14a) adjacent to the free edge (15).

19. Hairdressing appliance (1) according to one of claims 10 to 18, wherein the winder (1 1) has a cylindrical shape along the third axis (X3).

20. Hairdressing appliance (1) according to one of claims 10 to 18, wherein the winder (1 1) comprises a conical shape along the third axis (X3), the conical shape having an expansion towards the free end (10b) of the mandrel (10).

21. Hairdressing appliance (1) according to one of claims 1 to 20, which comprises a stationary finger (27) arranged at the contour (9a) of the extraction opening (9), the shape of which is configured to against the free end (10b) of the mandrel (10) for blocking the rotation of the wick around the mandrel without risk of passing said finger during the rotation of the winder (1 1), and to promote demolding curly lock along the mandrel.

22. Hairdressing appliance (1) according to claim 21, wherein the stationary finger (27) is arranged perpendicularly to the third axis (X3) and parallel to the plane (P), and has at least one lateral locking face (28a, 28b) configured so that the straight line (d1), which passes through the base (30) of the blocking lateral face and which intersects the third axis perpendicularly, forms with said blocking lateral face an angle (β) of between 0 and 35 degrees, preferably 25 degrees.

Hairdressing apparatus (1) according to claim 22, wherein the winder (1 1) rotates in both directions of rotation around the mandrel (10), the immovable finger (27) comprising two lateral locking faces (28a). , 28b) arranged symmetrically with respect to the plane (P). hairstyle (1) according to one of claims 21 to 23, wherein the stationary finger (27) is arranged perpendicularly to the third axis (X3) and parallel to the plane (P), said finger being configured to extend from the peripheral contour of the mandrel (10) towards the third axis, over a height (h1) of between 6 mm and

18 mm, preferably 12 mm.

25. Hairdressing appliance (1) according to one of claims 21 to 24, wherein the immovable finger (27) is arranged perpendicularly to the third axis (X3) and parallel to the plane (P), said finger being spaced relative to the free end (10b) of the mandrel (10) with a distance (e1) of between 1 mm and 5 mm, preferably 3 mm.

26. Hairdressing appliance (1) according to one of claims 22 to 25, wherein the mandrel (10) comprises a diameter (D) of between 20 mm and 25 mm, preferably 22 mm.

27. Hairdressing appliance (1) according to one of claims 21 to 26, wherein the immovable finger (27) comprises an inner face (31) disposed vis-à-vis the free end (10b) of the mandrel (10), the inner face having a curved shape configured to accompany the release of the curly lock of hair through the extraction opening (9).

28. Hairdressing apparatus (1) according to claim 27, wherein the inner face (31) comprises an end (31a) which extends in the form of spout (32).

29. Hairdressing appliance (1) according to one of claims 21 to 28, wherein removable fixing means (34, 35) are arranged between the immovable finger (27) and the contour (9a) of the opening of extraction (9).

30. Hairdressing appliance (1) according to one of claims 1 to 29, which comprises heating means (36) configured to heat the lock of hair inside the winding chamber (8).

31. Hairdressing appliance (1) according to claim 30, wherein the heating means (36) are arranged in the mandrel (10).

32. Hairdressing appliance (1) according to one of claims 1 to 31, wherein the housing (2) further comprises an inner cage (17). enco in the winding chamber (8) around the winder (1 1), with a second spacing (19) relative to said winder, said inner cage being configured to extend the guide of the lock of hair inside of the winding chamber towards the winder, after passing through the slot (7).

33. Hairdressing appliance (1) according to one of claims 1 to 32, which comprises gripping means (3) of the housing (2) consisting of a handle which extends in the plane (P) in the opposite direction at the position of the slot (7).