KR102631041B1 - Automatic hairstyling device for curling hair with hair immobilizing device - Google Patents

Abstract

- Mandrel (21);
- A curling machine (22) configured to curl a skein of hair around the mandrel (21) when rotated in a predetermined direction,
- a motor 23 provided to rotate the curling machine 22, and
- The hair fixing device 25 disposed at the distal end 212 of the mandrel 21
A hairstyling device for curling hair, comprising a curling device (2) having,
The hair fixing device 25 is characterized in that it includes a plurality of picots 251 protruding from the distal end 212 of the mandrel 21.

Description

Automatic hair styling device for hair curling with hair holding device {AUTOMATIC HAIRSTYLING DEVICE FOR CURLING HAIR WITH HAIR IMMOBILIZING DEVICE}

The present invention relates to a hairstyling device for curling hair, comprising a device for curling a strand of hair around a mandrel to effect said curling. In particular, the present invention,

- Mandrel,

- A curling machine configured to curl a strand of hair around a mandrel when rotated in a predetermined direction,

- a motor provided to rotate the curling machine, and

- Hair fixing device placed at the distal end of the mandrel

It relates to a hair styling device for hair curling, including a curling device having a.

Such hairstyling devices are known to those skilled in the art. Additionally, it is necessary to maintain and guide the strand of hair in the vicinity of the end of the mandrel as it is curled around the mandrel so that the devices can operate properly and provide the user's desired result, i.e., a wave of the hair strand. . For that purpose, a number of solutions have been proposed which include a brake device which prevents the portion of the hair strand located near the end of the mandrel from winding around the mandrel when the strand of hair is curled by a curling machine. For example, documents FR2373986 or CN205612003 present a rather flexible brake positioned perpendicular to the mandrel. A brake of that type makes it possible to virtually guide a strand of hair. However, that type of solution causes considerable inconvenience when the user wants to withdraw his strand of hair from the mandrel, i.e. when he wants to release the strand. In practice, the brakes proposed in the literature thus prevent the sliding of the styled hair strand around the mandrel and there is a risk that the applied tensile force will cause some of the waves of the hair strand to unravel again. Therefore, the final result can be disappointing to the user as long as the wave of the hair strand may be partially damaged during the release operation.

To solve the problem and to facilitate the release of styled strands of hair around the mandrel, it has been proposed that the first type of brake be mobile, but this is a complex, expensive and often unreliable mechanical mechanism. Add a solution.

Additionally, a groove located at the end of the mandrel was proposed in patent application CN205492908. The groove is V-shaped and does not impede the detachment of the strand of hair styled around the mandrel and thus facilitates the release operation. The grooves also prevent the lock of hair from wrapping around the end of the mandrel as it is curled around the mandrel. However, that solution has several other disadvantages when curling hair strands. In fact, there is a possibility that a strand of hair may slip out of the groove and thus become free inside the device. The solution may therefore lead to incorrect curling of the hair strands and thus lead to bad results and may further lead to device failure if the hair strands become tangled or are incorrectly positioned relative to the curler and/or mandrel.

The present invention aims to solve the above-mentioned shortcomings.

The purpose of the present invention is to propose a hair styling device for hair curling that enables sustainable hair styling.

Another object of the present invention is to propose a hairstyling device for curling hair that is inexpensive and simple to design and manufacture.

Another object of the present invention is to propose a hairstyling device for hair curling that is particularly safe and risk-free for the user.

Another object of the present invention is to propose a hairstyling device for curling hair that is particularly ergonomic, intuitive and simple to use.

Another object of the invention is to propose a hairstyling device for hair curling that is particularly robust and reliable.

For that purpose, the present invention is a hair styling device for hair curling,

- Mandrel,

- A curling machine configured to curl a strand of hair around a mandrel when rotated in a predetermined direction,

- a motor provided to rotate the curling machine, and

- The hair fixing device placed at the distal end of the mandrel

It relates to a hair styling device for curling hair including a curling device having,

The hair holding device is characterized in that it includes a plurality of picots protruding from the distal end of the mandrel.

Pico means a longitudinally extending protrusion, for example a tooth, tip or lug. The distal end refers to the end of the mandrel located away from the user's hand holding the hair styling device, as will be described in detail below. The hair strand is positioned between the plurality of picots before being curled around the mandrel so as to prevent rotation around the end of the mandrel and to guide its curling, particularly by securing the strand so that rotation is effected near its roots. . By doing so, the hair strands cannot become entangled. Thus, thanks to the invention, and in particular thanks to the plurality of picots, the retention and guidance of the strand of hair when curling it around the mandrel is improved. In addition, the plurality of picots allow hair to be distributed and combed into small strands like a comb or brush. In reality, hair strands are evenly distributed and cannot curl and tangle. The plurality of picots also makes it possible to curl all the hair around the mandrel simultaneously and uniformly, thus preventing tangles during curling.

In a preferred embodiment of the invention, the fixture comprises at least 3 picots, preferably at least 10 picots, and advantageously between 15 and 20 picots. Therefore, when using the device, a strand of hair is positioned between the picots by the user and that quantity of picots further allows to apply a slight tensioning force to the strand of hair before it is curled around the mandrel, which causes the hair to be compressed. It allows the styling of the skein to be significantly improved.

In one variant of the invention, each pico extends longitudinally between the base and the apex linked with the distal end to a length of 5 mm to 25 mm, preferably 10 mm to 15 mm. The presence of a large number of picots and their sufficient length significantly prevent the hair strand from coming out unexpectedly from the fixture. According to a variant, the mandrel extends along a longitudinal axis and each of the picots extends along a first longitudinal axis parallel to the mandrel longitudinal axis, the first longitudinal axis passing through the central portion of the apex portion and the central portion of the base. The apex preferably means the free end of each picot and the base preferably means the part of the picots that contacts the mandrel. In other words, each of the picots extends in the same direction as the mandrel. The configuration thus enables and facilitates the task of releasing the hair strand without any obstacles or resistance. Besides that, it is particularly intuitive for the user to put the device away by keeping the device away from his head. Particularly advantageously, at least one of the picots, preferably each of the picots, has a gradually decreasing cross-section from its base towards its apex, which causes the release of the hair strand, like a taper in a casting. makes it easier. Preferably, the base of each pico is circular and thus the picots are conical or truncated. In one particularly advantageous embodiment of that variant of the invention, the vertices of the picots are arranged coplanar in a plane forming an angle other than 90° with the longitudinal axis of the mandrel. In other words, different picots are contained within a plane that is not parallel to the end of the mandrel. Advantageously the angle is between 85° and 60°, preferably 75°.

In a preferred variant of the invention, the mandrel comprises heating elements designed to heat the lock of hair so as to secure a sustainable styling and obtain waves when the hair lock is curled around the mandrel. Advantageously, the mandrel comprises a cap of insulating material, the cap forming the distal end. Therefore, thanks to its structure, the user's scalp is protected from the risk of burns.

In another variant of the invention, which of course can be combined with one of the variants described above, each pico is implemented in phenylene polysulfide, which provides an excellent compromise between mechanical durability, heat resistance and relative flexibility.

According to one advantageous embodiment of the invention, the device comprises a casing housing the mandrel. In other words, the mandrel, but also preferably the entire components of the curling device, are embedded inside the casing, which results in a compact, user-safe and robust device, especially considering that the dynamic parts are protected by the casing. make it possible According to that embodiment, the casing comprises an upper opening and a lower opening connected to each other by a front opening. Preferably the upper and lower openings each include a slot and a groove. The upper, lower and front openings therefore allow the user to introduce a strand of hair into the casing so that it can be automatically captured by the curler and curled around the mandrel, according to a mode of operation known per se. . Preferably, the picos are located inside the casing and inside the front opening. In other words, no picot protrudes outside the casing. Such special arrangement of the picos within the casing makes it possible to protect them and limit their risk of breakage if the device falls. Advantageously, the upper opening extends longitudinally from the front opening along a superior longitudinal axis, the lower opening extends longitudinally from the front opening along a lower longitudinal axis, and the mandrel extends along the longitudinal axis. The upper longitudinal axis, the lower longitudinal axis and the longitudinal axis of the mandrel are arranged on the same plane within the plane of symmetry of the device. In other words, the respective axes of the upper opening, lower opening, front opening and mandrel are advantageously all aligned on the same plane which passes through the central part of the device and constitutes the plane of symmetry of the device. The hair strand can thus pass through the casing of the device through the hair retainer and more specifically through the plurality of picots. The plurality of picots and the upper and lower openings thus make it possible to guide the hair strand as it is curled around the mandrel. In a preferred implementation of that embodiment, said first longitudinal axis of at least one of the picots is arranged coplanarly within said plane of symmetry of the device, i.e. preferably aligned with the longitudinal axis of the mandrel and the lower and upper axes. In other words, at least one of the picos is disposed on the central plane of the device including the upper, front and lower openings. By central plane it is advantageously meant the plane of symmetry of the device. Such a configuration notably allows the hair strand to pass through the upper and lower openings, creating a slight tension in the hair strand at all times before being curled around the mandrel. The light tension on the hair strand makes it possible to eliminate any tangles that may be present within the hair strand and also ensures good curling around the mandrel.

In one embodiment of the invention, which may constitute a separate and complete invention,

- Mandrel,

- a curling machine configured to curl a strand of hair around a mandrel when rotated in a predetermined direction, the curling machine having a rotating outer surface, the curling machine comprising a groove extending on the rotating surface parallel to the mandrel,

- a motor provided to rotate the curling machine, and

- a casing containing an upper opening adapted to receive a strand of hair.

In the hair styling device for curling hair, including a curling device having,

Characterized in that the casing further comprises a lower opening adapted to receive the hair strand, and in the motor operating position, the groove of the curler is aligned with the lower opening. The configuration can significantly facilitate the introduction of the hair strand into the interior of the hair styling device, and in particular allows the hair strand to be held as close as possible to the hair root.

The invention also relates to a method per se of using a hair styling device according to one of the above-described variants, comprising:

- an insertion step of inserting the hair strand between the curler and the mandrel, and

- A curling step of rotating the curler in a predetermined direction

Contains,

The method is further characterized by comprising a fixing step in which a strand of hair is positioned between the picots prior to the curling step.

The following detailed description of a preferred and non-limiting embodiment of a hairstyling device demonstrates the features aimed at by the invention. This detailed description refers to the accompanying drawings.

Figure 1 shows the overall assembly of a preferred embodiment of a hairstyling device according to the invention.
Figure 2 is a front view of the hair styling device of Figure 1.
Figure 3 is a bottom view of the hairstyling device of Figure 1;
Figure 4 is a top view of the hairstyling device of Figure 1;
Figure 5 is a vertical cross-sectional view of the hair styling device of Figure 1.
Figure 6 is a first detailed cross-sectional view taken in horizontal longitudinal section of the device of Figure 1;
Figure 7 is another detailed horizontal cross-sectional view of the device of Figure 1.
Figure 8 shows the device of Figure 1 with part of the casing cut away to show the internal components of the device.
Figure 9 is a detailed view of the hair holding device of the device of Figure 1;

It should be noted that the terms lower and upper in this specification are based on the positioning of the device as shown in FIG. 1.

In the following detailed description, the term “appliance” will be used to define a hairstyling device for curling hair.

As can be seen in particular in Figures 1 to 4, the device comprises a casing 1, i.e. an outer shell adapted to house the various components of the device, in particular a mandrel 21 as shown in detail in Figures 5 to 9. do. The casing 1 is hollow and has a free end 14 which is advantageously arranged to be oriented approximately perpendicular to the user's head, particularly approximately perpendicular to the user's scalp during a curling operation. As Figure 2 shows, the cross-section of the casing 1 is approximately oval. The casing 1 is positioned within the outer (or upper) chamber 262 before styling a strand of hair and then inside (or lower) after styling, as will be detailed below and as shown in Figures 5-9. A curling chamber 26 provided to receive a strand of hair within the chamber 261 is formed therein.

The casing 1 includes an upper opening 11 extending from the free end 14 of the casing 1 towards the inside of the casing 1 . As can be seen in Figure 4, the upper opening 11 comprises a slot or groove whose length is between 10 mm and 50 mm, preferably between 20 mm and 40 mm and advantageously around 30 mm. Its upper opening 11 is designed to receive strands of hair, especially when the free end 14 is positioned approximately perpendicular to the user's head. Accordingly, the upper opening 11 is positioned opposite the user's scalp to accommodate the hair strand.

The casing 1 also includes a lower opening 12 extending from the free end 14 of the casing 1 towards the interior of the casing 1 . As can be seen in Figure 3, the lower opening 12 includes a slot or groove whose length exceeds the length of the upper opening 11. The length of the lower opening 12 is between 50 mm and 120 mm, preferably between 50 mm and 90 mm, advantageously around 80 mm. Preferably the lower opening comprises at least one rectangular cross-section. Preferably, the lower opening 12 has the shape of a T-shaped groove inverted from the free end 14. The particular shape of the groove is capable of retaining the strand of hair at the base of the lower opening 12, especially when the strand of hair is positioned within the T-shaped “small bar”, and optimizes the guidance of the strand of hair during curling. make it possible

As can be seen in FIGS. 1 to 4, the upper opening 11 and the lower opening 12 are connected to each other by the front opening 13. In other words, the upper (11), lower (12) and front (13) openings together form an opening that makes it possible to receive a lock of hair and effect its guidance when curling around the mandrel. The front opening 13 is implemented from the free end 14 of the casing 1 and is not open and includes a hole connecting the upper 11 and lower 12 openings.

The device also includes a handle (3) attached to the casing (1), designed to enable the user to hold the device with his/her hand. As can be seen in Figure 1, the casing 1 extends from the handle 3 at a slight angle. In other words, the casing 1 is neither perpendicular to the handle (90° right angle) nor completely on the extension of the handle (180° flat angle). Preferably, the axis of the casing 1 forms an angle of approximately 160° with the axis of the handle. Thanks to the angle, the ergonomics of the device are optimized, since the user holds the device by the handle 3 and keeps his wrist in a natural position, while holding the free end 14 approximately perpendicular to his head. This is because it is possible to apply the casing 1, in particular the upper opening 11, against his head.

As can be seen in Figure 1, the device also comprises a trigger 4 which is arranged to control the rotation and/or stopping of the device and in particular the rotation and/or stopping of the motor 23, as will be detailed below. Preferably the trigger 4 extends over almost the entire length of the handle 3 to facilitate operation with any finger, and even all fingers.

The device further allows the user to adjust several variables of the device, such as, but not limited to, the direction of rotation of the motor 23, the temperature of the mandrel 21 or the hair around the mandrel 21. It also includes one or more control buttons (5) that allow selection of the time for keeping the skein heated, etc. Preferably, the control buttons are located on the side of the handle (3) at a distance from the trigger (4).

As can be seen in Figures 5 to 8, the device includes a curling device 2 designed to automatically curl hair strands and create waves.

The curling device 2 has a proximal end 211 advantageously attached to the casing 1 or the handle 3 (i.e. the end located proximate to the user's hand) and an advantageously free distal end 212 (i.e. It includes a mandrel (21) or curling drum extending longitudinally between the user's hand and an end located spaced apart from the user's hand. Preferably the mandrel 21 is cylindrical. The mandrel 21 is fixed and advantageously includes a heating element 214, for example of the CTP type. In fact, heated mandrels make it possible to improve hair styling, especially waves. Preferably, in order to limit the risk of burning the user's scalp and even fingers, the mandrel 21 includes a cap 213 made of insulating material, which thus forms a distal end 212.

The curling device 2 also includes a curler 22 configured to curl the strand of hair around the mandrel 21 when the mandrel 21 is rotated in a predetermined direction as shown in FIGS. 5 to 8, The curling machine 22 is hollow and rotary. The curler 22 is positioned around the mandrel 21 and coaxially with the mandrel. The curling machine 22 has a first end portion 223 subordinated to a gear wheel 242. The gear wheel 242 engages with the ball screw 241 rotated by the motor 23, thereby allowing the curling machine 22 to rotate. The direction of rotation of the motor 23 is advantageously reversible, thereby allowing the direction of rotation of the curling machine 22 to be reversed. The motor 23, gear wheel 242 and ball screw 241 constitute the preferred design type of the rotational drive means 24 of the curling machine 22, although other variations may be considered without departing from the scope of the present invention. there is.

As shown in Figures 5 to 8, the curler 22 is preferably cone-shaped and extends in the direction of the distal end 212 of the mandrel 21. The curler 22 includes a groove 221 or cut extending onto its rotating surface and opening to a free edge 2241 at the second end 224 of the curler 22. The grooves 221 preferably have a trapezoidal shape, but other shapes are also conceivable, for example somewhat cylindrical or elliptical. Likewise, curler 22 may have a cylindrical rather than conical rotating surface. The curler may also be present in the form of two wings extending from the first end 223. Two hooks 222 may be disposed within the extension of the free edge 2241, opposite each other at two end positions of the groove 221.

In the operating position of the machine, and which may itself constitute an invention, at the beginning of the curling operation, the groove 221 is in an extension of the lower opening 12, as shown in FIGS. 6 to 8. is positioned, thereby allowing insertion of a strand of hair into the groove 221 of the curler 22. The rotational drive of the curler 22 then allows one of the two hooks 222 to capture the hair strand to initiate its curling along the direction of rotation of the motor 23. The hair strand is then drawn from the outer (or upper) chamber 262 located between the outer surface of the curling machine 22 and the inner surface of the casing 1, via the groove 221 of the curling machine 22, and into the curling machine ( It passes towards the inner (or lower) chamber 261 located between the inner surface of the mandrel 22) and the outer surface of the mandrel 21.

The operation of such curling machines is known per se, for example in the product sold by the applicant under the name "So Curls" (registered trademark). The operating mode of that device type is also disclosed in Patent Application No. 1655673. Accordingly, the operation of that device type will not be disclosed in detail herein.

The device also includes a hair retainer (25) disposed at the distal end (212) of the mandrel (21). The hair holding device 25 includes a plurality of picots 251 protruding from the end 212 of the mandrel 21. The fixture 25 serves a number of functions. Primarily, the holding device 25 makes it possible to guide the strand of hair during curling to prevent it from winding around the end of the mandrel 21 . In addition, the holding device 25 allows the curled skein to be released without damaging it. When the curling device 22 is driven in rotation, the curling device 22 brings the strand of hair being guided on one of the picots 251 of the fixture 25 to be forcibly curled around the mandrel 21 . Therefore, the direction of the implemented wave depends on the rotation direction of the curling machine 22. However, only one direction of the wave may be considered without departing from the scope of the present invention.

Figure 9 is a detailed view of the hair holding device 25. The fixture 25 comprises at least 3 picots 251, preferably at least 10 picots, and advantageously between 15 and 20 picots. As shown in Figure 9, the fixture 25 includes 17 picots evenly distributed on the distal end 212 of the mandrel 21. By having multiple picots, maintaining and guiding the skein during curling is optimized. The end of the mandrel 21 may therefore resemble a brush, which may more significantly enable combing the hair before curling it and prevent tangling during curling. Each picot 251 extends longitudinally between a base 2511 associated with the distal end 212 and an apex 2512 on a length of 10 mm to 15 mm. In other words, the length of picot 251 varies from 10 mm to 15 mm. The length of each of the random picots 251 may be constant or may vary without departing from the scope of the present invention. Each of the picots 251 extends along a first longitudinal axis (L _P ) parallel to the longitudinal axis (L _M ) of the mandrel 21, and the first longitudinal axis (L _P ) is located at the center of the apex portion 2512. It passes through the central part of the base 2511. The cross section of each of the picots 251 gradually decreases from their base 2511 to their apex 2512. The base 2511 of each of the picots 251 is circular. According to that embodiment, each pico is thus rotary, in particular conical or truncated. Of course, other shapes, such as pyramids, parallelepipeds, cylinders, etc., can be imagined without departing from the scope of the present invention.

The vertices 2512 of the picots 251 form an angle α other than 90° with the longitudinal axis L _M of the mandrel 21, advantageously between 85° and 60°, preferably 75°. It is placed on the same plane within one plane (P _P ). In other words, not all picots 251 have the same length, as can be seen in Figure 5. The length of the picots gradually varies from the longest length of the picots 251, which is approximately 20 mm, located near the upper opening 11, to the shortest length of the picots 251, which is approximately 15 mm, located near the lower opening 12. The picots 251 are reduced in length from the upper opening 11 towards the lower opening 12, making it possible to reliably capture and guide the strand, especially at its base (i.e. near the hair root).

Each pico 251 is implemented in phenylene polysulfide (PPS), a material that has notable properties, particularly mechanical durability and heat resistance. Preferably, the temperature of the mandrel is generally between 160°C and 230°C while the temperature of the picots does not exceed 70°C.

As can be seen in FIGS. 1 to 8, the picots 251 are located inside the casing 1 and inside the front opening 13. In other words, the fixing device 25 is located entirely inside the casing 1 while maintaining accessibility to the user through the upper 11, lower 12, and front 13 openings. The design makes it possible to protect the fasteners 25 and especially the picots 251 and limit the risk of damage in case of dropping the device. In case of mishandling of the device, the risk of burns or injury to the user is also reduced, given that none of the cutting edge elements escape from the device's casing (1).

Figures 1 to 4 show the arrangement of various openings. More precisely:

- the upper opening (11) extends longitudinally from the front opening (13) along the upper longitudinal axis ( _LS ),

- the lower opening (12) extends longitudinally from the front opening (13) along the lower longitudinal axis (L _I ),

- the mandrel 21 extends along the longitudinal axis L _M ,

The upper longitudinal axis (L _S ), the lower longitudinal axis (L _I ) and the longitudinal axis (L _M ) of the mandrel 21 are arranged on the same plane in the plane of symmetry of the device.

Such an arrangement of the various openings allows the user to insert the strand of hair he wishes to style into the casing 1 and then position the casing 1 near his head, more precisely his scalp, and further into contact with the scalp. make it possible

1 and 2 show that one of the first longitudinal axes (L _P ) of the picots 251 is aligned with the longitudinal axis (L _M ), the lower longitudinal axis (L _I ), and the upper longitudinal axis (L _S ) of the mandrel 21. It shows that there is. In other words, at least one picot 251 is aligned with the axes of the upper opening 11 , lower opening 12 and front opening 13 and with the longitudinal axis L _M of the mandrel 21 there is. Its specific structure makes it possible to obtain absolutely excellent hairstyling results, especially well-formed waves, that are maintained over time. In fact, a tension phenomenon appears on the hair strand as it is curled around the mandrel 21. More particularly, when a strand of hair is inserted into the casing 1 through the various openings as described above, the strand of hair is therefore kept in a perfectly straight line between the upper opening 11 and the lower opening 12. Even if there is no obstacle, an obstacle is encountered, and in the case of this embodiment, at least one pico 251 is inevitably encountered. In other words, the hair strand is not perfectly aligned with the central plane of the device, i.e. the plane passing through the longitudinal axis L _M of the mandrel 21 and the axes of the upper opening 11 and the lower opening 12 . As a result, when a lock of hair is captured by one of the hooks 222 of the curler 22 as described above, the lock of hair begins to curl around the mandrel 21. When the strand of hair slides inside the various openings and comes into contact with at least one picot 251, advantageously a plurality of picots, this results in a slight tensile force being applied on the strand of hair. The tensile force makes it possible, in particular, to comb the hair and implement a polishing action on the hair strand. In other words, a mechanical treatment of the tensile type is applied on the strand of hair before curling it around the mandrel 21 .

The method of use and in particular the method of positioning the hair strand within the device will be described in detail below.

In order to implement curling of hair strands, the user of the device shown in the various figures performs the following.

The user holds the device by its handle 3 with one hand and then orients the device so that the free end 14 of the casing 1 is facing upwards. The user then positions the device against his head, more preferably with the upper opening 11 against his scalp. Ensure that the free end 14 is approximately perpendicular to the user's head. Thereafter, the user inserts a strand of hair between the curler 22 and the mandrel 21. More precisely, the user inserts a strand of hair into the casing 1 of the device through the upper 11, lower 12 and front 13 openings. In this way, the hair strand is introduced into the casing (1) through the upper opening (11) and the front opening (13), comes out again through the lower opening (12), and passes through the casing (1). Taking into account the alignment of the upper (11) and lower (12) openings with the different axes of the grooves (221) of the curler (22), the strands of hair are thus drawn into the curler (22), more precisely into the grooves (221). ) and is therefore located between the curler 22 and the mandrel 21. While inserting the strand of hair into the casing 1, the user also positions the strand of hair between the picots 251, which results in properly guiding the strand to rotate, especially at the end of the mandrel during curling. Prevents wrapping around the circumference. The user then uses the control button 5 in particular to rotate the motor 23 and thus the curling machine 22 (e.g. to select the direction of rotation of the motor 23 and thus the curling machine 22 ). And/or the curling machine 22 can be rotated in a predetermined direction using the trigger 4. Accordingly, the curling machine grips the skein and the skein is automatically curled around the mandrel 21 according to a process known per se.

Thanks to the present invention, significantly optimized guidance of the strand is achieved, especially since the strand slides under the action of the curling device 22 during automatic curling, especially between the picots 251 of the hair fixing device 25. By passing between the picots 251, as described above, on the one hand, a slight tensile force can be applied to the hair, thereby combing, pulling and holding the hair, preventing any risk of tangling during automatic curling. , on the other hand, makes it possible to properly guide the hair so as to prevent it from being twisted or wound around the end of the mandrel 21.

Claims (16)

- Mandrel (21);
- a curling machine (22) configured to curl a strand of hair around the mandrel (21) when rotated in a predetermined direction,
- a motor 23 provided to rotate the curling machine 22, and
- a hair fixing device (25) disposed at the distal end (212) of the mandrel (21)
In the hair styling device for curling hair, comprising a curling device (2) having,
The hair fixing device (25) is a hair styling device, characterized in that it includes a plurality of picots (251) protruding from the distal end (212) of the mandrel (21). 2. Hairstyling device according to claim 1, characterized in that the holding device (25) comprises at least 3 picots (251), or at least 10 picots, or 15 to 20 picots. In claim 1 or 2, each pico 251 has a length of 5 mm to 25 mm, or 10 mm to 15 mm between the base 2511 and the apex 2512 linked with the distal end 212. A hairstyling device, characterized in that it extends longitudinally. 3. The mandrel (21) extends along a longitudinal axis (L _M ), and each said picot (251) has a first longitudinal axis (L _P ) parallel to the longitudinal axis (L _M ) of the mandrel (21). extending along, wherein the first longitudinal axis L _P passes through the central portion of the apex portion (2512) and the central portion of the base portion (2511). 3. The method of claim 3, wherein at least one of the picots (251), or each of the picots (251), has a cross-section that gradually decreases from its base (2511) towards its apex (2512). A hair styling device. The hairstyling device according to claim 3, characterized in that the base (2511) of each pico (251) is circular. In claim 3, the vertices 2512 of the picots 251 have an angle of 85° to 60°, or 75°, which is an angle α other than 90° with the longitudinal axis (L _M ) of the mandrel 21. A hair styling device, characterized in that it is arranged on the same plane within the forming plane (P _P ). 3. Hairstyling device according to claim 1 or 2, characterized in that the mandrel comprises a heating element (214). 9. Hairstyling device according to claim 8, characterized in that the mandrel comprises a cap (213) made of insulating material, which cap forms its distal end (212). 3. Hairstyling device according to claim 1 or 2, characterized in that each pico (251) is implemented from phenylene polysulfide (PPS). 5. Hairstyling device according to claim 4, comprising a casing (1) containing the mandrel (21). Hairstyling device according to claim 11, characterized in that the casing (1) comprises an upper opening (11) and a lower opening (12) connected to each other by a front opening (13). 13. The hairstyling device according to claim 12, wherein the picots (251) are located inside the casing (1) and inside the front opening (13). In paragraph 12:
- the upper opening (11) extends longitudinally from the front opening (13) along the upper longitudinal axis ( _LS ),
- the lower opening (12) extends longitudinally from the front opening (13) along the lower longitudinal axis (L _I ),
- the mandrel 21 extends along the longitudinal axis L _M ,
Hairstyling device, characterized in that the upper longitudinal axis (L _S ), the lower longitudinal axis (L _I ) and the longitudinal axis (L _M ) of the mandrel (21) are arranged on the same plane in the plane of symmetry of the device. 15. Hairstyling device according to claim 14, characterized in that at least one of the first longitudinal axes (L _P ) of the picots (251) is arranged coplanar within the plane of symmetry of the device. A method of using the hair styling device according to claim 1 or 2, comprising:
- an insertion step of inserting a strand of hair between the curler (22) and the mandrel (21), and
- A curling step of rotating the curling machine 22 in a predetermined direction.
In the method of use including,
Characterized in that the method further comprises a fixing step in which a strand of hair is positioned between the picots (251) prior to the curling step.