FR3042957A1 - LASER TYPE HAIRSTRIPPER WITH OPTIMIZED COMB - Google Patents

Abstract

The invention relates to a hairdressing apparatus (1) comprising a first (2) and a second (3) arm configured to form a clamp, a first (7) and a second (8) treatment surface configured vis-à- respectively on said arms to press a lock of hair when pinching, and a first comb (11) configured on the first arm upstream of the first treatment surface, at least one of the two treatment surfaces comprising characterized in that the first comb comprises teeth (13) and strands of bristles (15) arranged alternately along the length of said comb.

Description

LISTING TYPE HAIRSTYLE WITH OPTIMIZED COMB Technical area

The present invention relates to the field of hair styling devices of hair straightener type that allow the treatment of strands of hair by pinching them between two treatment surfaces of which at least one of said surfaces is heated.

State of the art

Hair straightening appliances traditionally comprise two arms configured to form a clamp, each arm comprising on its inner face a treatment surface. The treatment surfaces on the two arms are arranged vis-à-vis and allow to press a lock of hair when the arms are pinched. During use, the straightener is moved along the lock of hair, from the root to the tip. One or both of the treatment surfaces are provided with heating means so as to heat the lock of hair during its nip between the two treatment surfaces, thereby improving the quality of straightening of the lock of hair.

Smoothing style hairdressing apparatuses are also known which comprise, in addition to the above-mentioned features, a comb arranged longitudinally, which makes it possible to aerate the strand of hair by distributing it over the entire length of the treatment surfaces, which makes it possible to heat and pinch properly all the hair during their passage between the two treatment surfaces, for better hair straightening. By way of example, such a comb is described in the international application WO 2010 081968 A1. SUMMARY OF THE INVENTION The object of the invention is to implement a straightening styling apparatus that makes it possible to optimize the result of the smoothing of the hair. For this purpose, the hairdressing apparatus according to the invention comprises a first and a second arm configured to form a clamp, a first and a second treatment surfaces configured vis-a-vis respectively on said arms to press a lock of between the said treatment surfaces when the pinch is obtained by bringing the two arms together, and a first comb configured on the first arm upstream of the first treatment surface, at least one of the two surfaces of treatment comprising heating means, preferably both treatment surfaces, for heating the lock of hair and obtain a better smoothing. Remarkably, this first comb comprises teeth and hair strands arranged alternately along the length of said comb. The Applicant has indeed found after having conducted many research and studies that the choice of a comb with teeth and hair strands arranged alternately, advantageously makes it possible to visually increase very significantly the quality of the straightening of the wick. of hair compared to hair styling devices of hair straightener type with comb, according to the prior art.

In particular, such a comb, comprising teeth and strands of bristles arranged alternately along the length, allows both to create a useful tension to the alignment of the hair between the treatment surfaces but also to properly distribute the wick between the two treatment surfaces, dividing it into several packages, which has the effect of increasing the heat exchange between the wick and the treatment surfaces, and thus improving the smoothing performance.

In one embodiment of the hairdressing apparatus according to the invention, the teeth have a pointed shape in a transverse cutting plane of the comb. These teeth have a thickness defined in the direction of the length of the comb, which is constant over the entire height of said teeth. In transverse view of the comb, this pointed shape defines a quadrilateral, for example a trapezium or almost, which comprises a large side of width of between 2.60 mm and 3.00 mm, preferably equal to 2.87 mm, and a small width side of between 0.40 mm and 0.80 mm, preferably 0.60 mm, each tooth having a thickness in the direction of the comb length which is between 1.00 mm and 1.30 mm mm, preferably 1.14 mm.

In one embodiment, the teeth have a height separating the long side and the short side, between 7.5 mm and 9.00 mm, preferably equal to 8.30 mm.

In one embodiment, the spacing between the faces vis-à-vis two teeth is between 3.35 mm and 3.75 mm, preferably 3.55 mm.

In one embodiment, the hair strands have a diameter of between 2.00 mm and 2.40 mm, preferably equal to 2.20 mm.

In one embodiment, the strands of bristles have a height of between 7.5 mm and 9.00 mm, preferably equal to 8.30 mm.

The Applicant has found that these dimensional choices of the trapezoidal shape of the teeth and the pile strand allow even better to optimize the result of smoothing the lock of hair.

According to the hairdressing apparatus object of the invention, it comprises support means configured on the second arm upstream of the second treatment surface and the first comb to constrain the lock of hair to penetrate between the teeth to in the bottom of said first comb, resting against the strands of hair. The positioning of the hair of the wick in the bottom of the comb allows the hair strands to exert a greater tension on said hair, before they pass between the two treatment surfaces.

In one embodiment, these support means consist of a curved hood disposed on the second arm in correspondence with the first comb on the first arm, said first comb being housed in said hood during the nip.

In a first variant, the curved hood comprises a longitudinal edge which bears on the lock of hair. Preferably, the position of this longitudinal edge substantially corresponds to the bottom of the comb pinch position.

In a second variant, the curved hood comprises a longitudinal portion configured to form a second comb disposed in the opposite direction of the first comb, downstream of said first comb.

In another embodiment, these support means comprise a longitudinal contact element in a material configured to exert a resistance to friction on the lock of hair, for example a silicone material. In the case of a curved hood, it is conceivable to make the longitudinal edge in a silicone material or in other materials.

In a variant of hairdressing appliance according to the invention, it also comprises vaporization means configured to perform a steam treatment in addition to a heating treatment during the passage of the lock of hair between the two surfaces of treatment, or even before or after its passage between said treatment surfaces.

Brief description of the figures

The features and advantages of the invention will appear on reading the following description of an embodiment of the hairdressing apparatus, which is based on figures, among which: FIG. 1 illustrates a three-dimensional view of the hairdressing apparatus; FIGS. 2 and 3 illustrate two three-dimensional views of the two arms constituting the hairdressing apparatus of FIG. 1; FIG. 4 illustrates a three-dimensional view of the comb used on the hairdressing appliance; FIG. 5 illustrates an enlarged view from above of one of the teeth of the comb; FIG. 6 illustrates an enlarged side view of two teeth and a hair strand of the comb; - Figure 7 illustrates a cross sectional view of the comb according to a design variant; FIG. 8 illustrates an alternative embodiment of a cover on one of the arms of the hairdressing appliance of FIG. 1.

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 rest of the description, the term "straightener" will be used to designate the hairdressing apparatus 1 according to the invention.

As illustrated in FIG. 1, the straightener 1 comprises two arms 2, 3 - also called jaws - hinged together by means of a pivot connection 4, which makes it possible to form a clamp which can be arranged either in the open position where the two arms are distant from each other, or in the closed position where the two arms are brought close together. The proximal portions 2a, 3a of the two arms 2, 3 can simultaneously be gripped with one hand, which allows the closing of the clamp and the handling of the straightener 1. The two arms 2, 3 each comprise on their inner face 5, 6 and at their distal portion 2b, 3b, a treatment surface 7, 8. The two treatment surfaces 7, 8 are arranged facing each other and allow pressing a lock of hair disposed between said treatment surfaces 7 , 8, when closing the clamp.

Preferably, the two treatment surfaces 7, 8 are heated, but it is possible to provide alternative embodiments with only one of the two treatment surfaces 7, 8 which is heating. The treatment surfaces 7, 8 are in the form of heating plates 9, 10 and incorporate heating means (not shown) of said heating plates 9, 10 including in particular a heating device (not shown) consisting of a thermistor positive temperature coefficient, called CTP, and a temperature measuring device (not shown) consisting of a negative temperature coefficient thermistor, said CTN.

The above characteristics are well known to those skilled in the field of hair straighteners, and are therefore not described in more detail. However, it will be possible to envisage innovative variants on these aforementioned characteristics of the straightener, without departing from the scope of the present invention.

As illustrated in Figures 1 and 3, the straightener 1 comprises a comb 11 which extends longitudinally adjacent to the upstream longitudinal edge 9a of the heating plate 9 of the first treatment surface 7. The comb 11 is not shown in Figure 3, to highlight the presence of a groove 14 arranged on the inner face 5 of the first arm 2 and for the reception of said comb 11. The comb 11 comprises a longitudinal body 12, teeth 13, for example nineteen teeth 13, and strands of bristles, for example eighteen strands of bristles 15, the teeth 13 and the bristle strands 15 being arranged alternately along the body 12, as illustrated in FIG. Preferably, the body 12 and the teeth 13 are made in one piece, and the strands of bristles 15 are fixed, for example by interlocking and gluing, in housings 16 arranged on the body 12, as illustrated in FIG. Figure 4 are schematized only six strands of bristles 15 to highlight said housings 16. The comb 11 is preferably removably assembled on the inner face 5 of the arm 2. For this, the groove 14 which extends longitudinally adjoining the upstream longitudinal edge 9a of the heating plate 9 on the first arm 2, as shown in FIG. 3, has shapes complementary to those of the body 12 of the comb 11, which allows a sliding installation of said body 12 inside said groove 14, with the teeth 13 and the bristle strands 15 of the comb 11 directed towards the second arm 3. This advantageously makes it possible to be able to replace the comb 11, for example by another having teeth 13 and / or strands of bristles 15 of different dimensions, or of a different texture and / or composition.

As illustrated with reference to FIGS. 4 to 7, the teeth 13 of the comb 11 have their faces 13a, 13b arranged opposite one another and spaced apart by a regular spacing E. These teeth 13 have, in a transverse view to the comb 11 illustrated in FIG. 7, a pointed shape which defines a quadrilateral having a large side 17, proximal to the body 12, and a short side 18, distal to -vis of said body 12 and ending with a tip 30 of rounded shape. The height h1 of the tooth 13 is defined by the distance between the short side 18 of the long side 17. The long side 17 has a width 11 and the short side 18 has a width I2. In addition, the tooth 13 has, in a longitudinal view of the comb 11, a constant thickness e over its entire height. In addition, as shown in Figure 6, the bristle strands 15 have a diameter d and a height h2.

The Applicant has found that this choice of comb 11, comprising teeth 13 and strands of bristles 15 arranged alternately, remarkably improves the tension exerted on the hair of the wick during their penetration between the teeth 13, and homogeneously distribute the hair of said wick along the length of the comb 11, before they pass between the treatment surfaces 7, 8, which contributes to suitably heat all the hair of the wick to the core and to ensure a homogeneous pressure on all said hair during their passage between the two treatment surfaces 7, 8. The Applicant has noted that these choices can significantly increase the visual quality of hair straightening compared to previous straighteners.

The hair straightening results are optimized by choosing for the dimensions of the teeth 13 and the pile strands 15: a large side 17 of width 11 of between 2.60 mm and 3.00 mm, preferably equal to 2.87 mm. mm, a small side 18 of width I 2 of between 0.40 mm and 0.80 mm, preferably equal to 0.60 mm, a thickness of tooth 13 which is between 1.00 mm and 1.30 mm. preferably 1.14 mm, a height h1 of tooth 13 between 7.5 mm and 9.00 mm, preferably equal to 8.30 mm, a distance E between two teeth 13 of between 3, 35 mm and 3.75 mm, preferably 3.55 mm, - a diameter of strand bristles of between 2.00 mm and 2.40 mm, preferably equal to 2.20 mm, and - a height h 2 hair strand 15 between 7.5 mm and 9.00 mm, preferably equal to 8.30 mm.

As illustrated in Figures 1 and 2, the straightener 1 comprises support means constituted by a cover 19 which is arranged on the second arm 3 upstream of the second treatment surface 8. This cover 19 has a curved shape with a longitudinal portion 24 which descends and is positioned upstream of the comb 11, next to the teeth 13 and strands of bristles 15 which are housed in the cavity 20 formed by the curved cap 19, in the closed position of the clamp. In this closed position of the clamp, illustrated in FIG. 1, the longitudinal edge 21 of the cover 19 is in a position which corresponds substantially to that of the bottom 22 of the comb 11, which appears in more detail in FIGS. pressing the hair of the wick and forcing them to slide towards the bottom 22 of the comb 11, between the teeth 13 and against the hair strands 15, so as to optimize the tension exerted on said hair during their passage through the comb 11, before being pressed between the two treatment surfaces 7, 8.

It is possible to envisage variants of support means replacing the cover 19, for example by providing on the second arm 3 a wire element or bar (not shown) which would have a similar arrangement to the position of the longitudinal edge 21 of the cover 19.

Cover variants 19 are also conceivable. As illustrated in FIG. 8, it is possible to provide on bonnet 19, at its longitudinal edge 21, a bead 23 (or a blade) made of a material having a coefficient of friction which makes it possible to ensure a slight additional tension on the hair on which said bead 23 presses when closing the clamp. This bead 23 is preferably made of silicone. This silicone material could also be envisaged for the wire element or the aforementioned bar.

In another variant, it is possible to envisage the implementation of a second comb (not illustrated) arranged on the longitudinal portion 24 of the cover 19, illustrated in particular in FIGS. 2 and 8, in opposition to the first comb 11 on the first arm 2 This second comb would ensure a pre-tension on the hair and a pre-separation of the hair before their passage through the first comb 11. The teeth of this second comb could be identical or similar to the teeth 13 of the first comb 11 or even a different design. This second comb could also be provided in a silicone material to increase the coefficient of friction on the hair.

It may also be envisaged that the teeth 13 of the first comb 11 are made of a material whose coefficient of friction makes it possible to provide a slight additional tension on the hair during their passage between said teeth 13. These teeth 13 may for example be made of silicone .

The bottom 22 of the comb 11 defined by the upper face 12a of the body 12, may be flat, in this case the teeth 13 of said comb 11 define a trapezoidal shape with its large base corresponding to the long side 17 and its small base corresponding to the short side 18. In the variant illustrated in Figure 7, the bottom 22 has an inclination upwardly in the direction of advance of the hair, defined by the arrow 31, with respect to the comb 11. This inclination of the bottom 22 allows limit the curvature or inclination of the hair strands 15 which bend under the force exerted by the hair, so as to promote a better tensioning of the hair under the action of the strands of hair.

In another variant of straightener 1, the latter additionally comprises vaporization means which can be arranged in different ways on one and / or the other of the two arms 2, 3 so as to project steam onto the hair strand before, during or even after its passage between the two treatment surfaces 7, 8. Such means of vaporization on the straighteners are known to those skilled in the art and are therefore not described in more detail, which does not However, it does not exclude the use of innovative vaporizing means while remaining within the scope of the present invention.

The foregoing description has no limiting character, many variations of straighteners being conceivable without departing from the scope of the invention.

Claims (14)

1. Hairdressing apparatus (1) comprising a first (2) and a second (3) arm configured to form a clamp, a first (7) and a second (8) treatment surfaces configured vis-a-vis respectively on said arms for pressing a lock of hair when gripping, and a first comb (11) configured on the first arm upstream of the first treatment surface, at least one of the two treatment surfaces comprising heating means, characterized in that the first comb comprises teeth (13) and strands of bristles (15) arranged alternately along the length of said comb. 2. Apparatus (1) according to claim 1, wherein the teeth (13) have a pointed shape in a cross section plane of the comb. 3. Apparatus (1) according to claim 2, wherein the pointed shape defines a quadrilateral with a long side (17) of width (11) between 2.60 mm and 3.00 mm, preferably equal to 2.87 mm. mm, and a small side (18) of width (I2) between 0.40 mm and 0.80 mm, preferably equal to 0.60 mm, each tooth having a thickness (e) in the direction of the length of the comb (11) which is between 1.00 mm and 1.30 mm, preferably equal to 1.14 mm. 4. Apparatus (1) according to one of claims 2 to 3, wherein the teeth (13) have a height (h1) between 7.5 mm and 9.00 mm, preferably equal to 8.30 mm. 5. Apparatus (1) according to one of claims 1 to 4, wherein the bristle strands (15) have a diameter (d) between 2.00 mm and 2.40 mm, preferably equal to 2.20 mm. 6. Apparatus (1) according to any one of claims 1 to 5, wherein the strands of bristles (15) have a height (h2) of between 7.5 mm and 9.00 mm, preferably equal to 8, 30 mm. 7. Apparatus (1) according to one of claims 1 to 6, wherein the spacing (E) between the faces (13a, 13b) vis-à-vis two teeth (13) is between 3.35 mm and 3.75 mm, preferably 3.55 mm. 8. Apparatus (1) according to one of claims 1 to 7, which comprises support means (21, 23) configured on the second arm (3) upstream of the second treatment surface (8) and the first comb (11) for constraining the lock of hair to penetrate between the teeth (13) into the bottom (22) of said first comb. 9. Apparatus (1) according to claim 8, wherein the support means consist of a curved hood (19) in which is housed the first comb (11) during the nip. 10. Apparatus (1) according to claim 9, wherein the curved hood (19) comprises a longitudinal edge (21) whose position corresponds substantially to the bottom (22) of the comb (11) in the nip position. 11. Apparatus (1) according to claim 9, wherein the curved hood (19) comprises a longitudinal portion (24) configured to form a second comb disposed opposite to the first comb (11). 12. Apparatus (1) according to one of claims 8 to 10, wherein the support means comprise a longitudinal member (23) of contact in a material configured to exert frictional resistance on the lock of hair 13. Apparatus (1) according to one of claims 1 to 12, wherein the two processing surfaces (7, 8) comprise heating means. 14. Apparatus (1) according to one of claims 1 to 13, which comprises means for vaporization.