Classifications

• • A—HUMAN NECESSITIES
  • A45—HAND OR TRAVELLING ARTICLES
  • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
  • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
  • A45D2/001—Hair straightening appliances
  • A45D2/002—Hair straightening appliances with combs
• • A—HUMAN NECESSITIES
  • A45—HAND OR TRAVELLING ARTICLES
  • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
  • A45D20/00—Hair drying devices; Accessories therefor
  • A45D20/48—Hair-drying combs or hair-drying brushes, with internal heating means

Definitions

• the present invention relates to a hair treatment apparatus which is intended for the specific shaping, in particular the smoothing, of the hair of a person.
• the devices of the type straighteners generally comprise two hinged articulating jaws that sandwich a lock of hair and shape it by applying heat.
• the hot plates of these devices are likely, in the long term, to damage the hair due to their high operating temperature.
• WO 03/026457 A1 proposes a hair straightening device having the general shape of a brush whose head comprises three adjacent combs, at least one of which mobile relative to the other two and a heating means of these combs placed under them. By moving the movable comb, it is possible to wedge strands of hair between the respective teeth of the three combs, heated by the heating means.
• This device requires a strong traction action on the locks of hair because the treatment is performed on the edges of the teeth of the combs, which causes a risk of breakage and requires treatment of the edges of the teeth of the combs.
• US 5,553,632 discloses a hair straightening attachment mounted to the blower end of a hair dryer.
• accessory comprises a set of two superposed combs, one of which is fixed and the other is slidably mounted laterally relative to the first.
• the base of the comb is located above the hot air outlet end of the hair dryer.
• the moving comb is set in motion by a mechanism actuated remotely by the user.
• the combs are inserted in the open position in the hair and then the closing mechanism of the combs is actuated, which thus holds the locks of hair between the teeth of the combs.
• the locks thus seized are pulled upwards and dried in position by the flow of air blown by the hair dryer.
• Such a device ensures, certainly, the smoothing of the hair at a lower temperature, but at the risk of exerting significant traction on the hair.
• the forces exerted by the teeth on the locks are not uniform and, therefore, only the thickest lock is grasped and smoothed, the wicks adjacent thinner they can escape to the outside of the combs. This results in a non-uniform, laborious smoothing, which requires a significant processing time.
• a similar type of smoothing device has also been described by the Applicant in the patent application FR 2,888,095, which proposes a smoothing head for a hair dryer comprising a thermally conductive smoothing blade comb.
• the blades of the smoothing device are heated essentially by the flow of hot air blown by the hair dryer, as described in EP 1 124 466.
• the thermally conductive blades are heated by a independent heating element powered electrically.
• devices of the "mixed" type comprising both means for blowing and smoothing by hot plates, as for example described in document US 2008/041409 A1.
• such a device proves to be particularly cumbersome and difficult. practical use.
• the object of the present invention is to overcome the disadvantages of the aforementioned devices by providing a hair treatment device that can ensure efficient and uniform smoothing for all lengths and types of hair to be treated, while respecting their nature.
• Another object of the invention is a hair treatment device which is easy to use and convenient for the person using it, while allowing a fast and effective treatment of the hair.
• Another object of the invention is a hair treatment device which is reliable in operation, while being able to be mass-produced at a lower cost.
• a hair shaping device intended to allow a smoothing action of the hair, comprising a row of pairs of smoothing blades. arranged facing each other receiving a row of pairs of smoothing blades arranged vis-à-vis.
• this apparatus at least one of the blades of each pair is movably mounted relative to an adjacent stationary blade so as to allow the pinch of a lock of hair between two blade treatment surfaces facing each other. the same pair.
• This device also comprises means for heating the smoothing blades comprising at least one heating element.
• the device of the invention is characterized in that said heating element is arranged in thermal contact with at least one element of thermally conductive material integral with at least a portion of the pairs of smoothing blades.
• integral is understood here to mean that the thermally conductive element and at least a portion of the smoothing blades are physically bonded to one another, or by means of fixing that allow heat transfer from the thermally conductive element to the blades. either by embodiment in a single piece, for example molded.
• the hair shaping device has the advantage of providing a large contact area between the smoothing blades heated by the heating element while having a small footprint.
• the smoothing blades do not produce adverse effects of jamming or crimping locks of hair which limits their damage during smoothing.
• each pair of smoothing blades of the apparatus comprising a movable blade independent of the movable blades of the other pairs of blades, locks of hair of different thicknesses can be smoothed simultaneously between the different pairs of blades of the apparatus with a same efficiency.
• the device according to the invention which can be integrated for example with a simple smoothing brush or with a smoothing blower brush, is not dependent, like the accessories for smoothing on a hair dryer, of the heating of the blades by the hot air blown by the hair dryer as the smoothing blades themselves are directly heated by a heating element in direct contact with a thermally conductive element integral with a blade out of two, this thermally conductive element allowing a homogenization of the heating of the blades for a better performance of the device and an improvement of the smoothing effect.
• the device of the invention When the device of the invention is associated with means for blowing and heating air to form a blowing smoothing brush, it is possible to independently use the smoothing function by the pair of smoothing blades and the blowing function. of air to achieve the drying of the hair. This provides a great comfort of use, as well as a better effectiveness of smoothing the hair in the measure the means of heating the air and heating the blades are independent, which allows a better temperature control of the smoothing blades of the device.
• the heating element of the blade heating means is an electrical resistance, in particular a PTC resistor.
• a resistance has the particular advantage of having a small footprint for a good thermal heating efficiency; in addition, it has thermal self-regulating properties which makes it possible to eliminate or at least limit the auxiliary regulation systems of electric power supply of the resistance to control the temperature.
• the heating element may also be a ceramic resistor or may consist of an electrically resistant flexible film.
• the heating element advantageously has at least one first contact surface pressed against a surface of complementary shape of the element of thermally conductive material, the first contact surface being preferably the largest surface of the heating element.
• the heating element is not directly in contact with the smoothing blades but in contact with a thermally conductive element, itself in contact with the blades. This gives a more homogeneous heating of the smoothing blades.
• the heating element of the blades comprises at least two contact surfaces forming two opposite faces coming into thermal contact with the element of thermally conductive material, said opposite faces forming the two largest surfaces of the heating element.
• the thermally conductive element of the device of the invention is advantageously constituted by an extruded metal part or molded and / or machined, including an aluminum piece.
• the heating element of the blades is inserted into the element of thermally conductive material in a reservation or housing provided for this purpose and further extends longitudinally in this element and by report to the smoothing head.
• the element receiving the heating element comprises two arms coming in the extension of each fixed blade and between which is interposed the heating element.
• each pair of smoothing blades is integral with the thermally conductive element inside which is inserted the heating element.
• each pair of smoothing blades comprises a fixed blade integral with the element receiving the heating element and a movable blade vis-à- screw of the fixed blade under the action of a control device.
• each pair of smoothing blades is made of a thermally conductive material.
• the fixed blades may in particular be made of material with the element of thermally conductive material in one and the same piece, for example by molding the assembly or machining a block of conductive material such as aluminum although the latter solution is expensive.
• each pair of smoothing blades comprises a fixed blade integral with the thermally conductive element receiving the heating element and a movable blade vis-à-vis the fixed blade under the action of a control device.
• the heating element is arranged vertically on its edge along the vertical axis of the blades.
• the device for shaping the hair of the invention comprises a device for controlling the movable blades comprising at least one sliding device on which are mounted sliding the movable blades, each separated by a compression spring and a spacer integral with the player on which each movable blade rests in abutment, the player cooperating at a first end with an actuating trigger and being embedded at a second end in a wall of the housing or on the element receiving the heating element.
• Such a control device proves extremely simple to build and use, in particular by the action of a single finger on the trigger in order to move the movable blades fixed blades so as to allow the passage of locks of hair between the blades then pinching these wicks between the blades after releasing the trigger.
• control device comprises a pair of walkmans, each player being arranged respectively in the series of arms extending each fixed blade on the same side.
• the heating means of the smoothing blades comprise power supply means for the heating element and a means for actuating these supply means such as, for example, a switch.
• the heating means of the smoothing blades of the apparatus may also comprise means for adjusting the temperature of the heating element.
• This arrangement makes it possible to regulate the temperature of the blades to adapt it to the different types of hair and also to ensure better stability of the temperature of the blades being smoothed.
• a second subject of the invention also relates to a hair treatment apparatus incorporating a device for shaping the hair as presented above.
• a hair treatment apparatus may in particular comprise a casing forming a smoothing head and integral with a casing forming a handle, the hair shaping device according to the invention being arranged inside. said housing and said handle.
• the apparatus of the invention thus forms a smoothing brush.
• the apparatus of the invention may also advantageously and preferably comprise a comb protecting the smoothing blades whose teeth are of complementary shape to that of the blades and which is integral with the housing of the smoothing head.
• a comb makes it possible to cover the ends of the smoothing blades so as to avoid their contact with the scalp of the user; it also also makes it possible to prevent any jamming or deterioration of the mobile blades when the device is used by protecting manual access to these blades.
• the trigger of the hair shaper controller is preferably pivotally mounted at a first end on the heating element receiving member within the smoothing head casing. and cooperates with a return spring also housed in the smoothing head, the trigger projecting at a second end through an opening in the handle of the apparatus.
• it comprises a fan for sucking and blowing air through the smoothing head and heating elements to heat the air sucked and blown by the fan and thus provide the device with a hair dryer function.
• the apparatus also preferably comprises means for controlling the heating element of the smoothing blades and / or the fan and the air heating elements for the hair dryer function of the apparatus.
• Figure 1A is a perspective view from above of a hair treatment apparatus according to the present invention in a preferred embodiment
• Fig. 1B is a perspective view of the underside of hair treatment apparatus of Fig. 1A;
• Figure 2 is an exploded perspective view of the hair treatment apparatus of Figures 1A and 1B; - Figure 3 is a longitudinal vertical sectional view of the apparatus of Figure IA.
• the hair treatment apparatus 1 shown in the accompanying figures is of the brushing type comprising essentially a smoothing head 2 integral with a handle 3 of manipulation.
• the smoothing head 2 is composed of a housing 4 formed for example by assembling two symmetrical half-shells 41, 42 of plastic such as polypropylene.
• This housing 4 defines an inner housing 43 in which are arranged hair treatment elements mainly comprising a row 5 of smoothing blades 6,7 having a series of fixed blades 6 and a series of movable blades 7 arranged side by side in pairs parallel to each other and means 8 for translational movement of the movable blades 7 relative to the fixed blades
• the control means 8 allow a momentary separation of the movable blades 7 relative to the fixed blades 6 so as to pass a lock of hair between the fixed and movable blades of each pair of smoothing blades.
• the smoothing head 2 of the apparatus 1 also receives in the housing 43, and in a characteristic manner of the invention, means for heating the blades. 6, 7, comprising a heating element 9 adapted to heat at least a portion of the blades 6, 7 of smoothing the apparatus.
• the heating means of the blades also comprise means for supplying said heating element 9, such as, for example, batteries and / or unrepresented electrical sector connection means. in the figures.
• the row 5 of smoothing blades 6, 7 is formed of several pairs of blades side by side, each pair comprising a fixed blade 6 and a fixed blade
• the fixed blades 6 are formed integral with the upper surface of an element 10 made of a thermally conductive material such as aluminum, which has a good compromise thermal conductivity / cost. They have substantially an ogival shape or arrowhead and are secured by their base of the element 10, of substantially parallelepiped shape.
• the element 10 forms a block of thermally conductive material on the upper surface of which are formed the fixed blades 6 of the blades smoothing.
• the fixed blades 6 can be made independently of the element 10 of thermally conductive material and be made integral with this element by any means of suitable fastening for heat transfer from thermally conductive block to fixed blades 6.
• each fixed blade 6 is defined a space for receiving a movable blade 7.
• the movable blades 7 are independent of each other and are set like jumpers on a longitudinal median spine 101 of the element 10. to allow this embedding on the element 10 between the fixed blades 6 the movable blades 7 have an upper end 71 of similar shape and area as the blades 6 and a lower portion 72 having an opening 721 U-shaped inverted bounded by two legs 722.
• the opening 721 and the legs 722 thus allow the overlap of the median spine of the element 10 by the movable blades 7 and the lateral setting of said movable blades 7 with respect to the fixed blades 6.
• the heating element 9 of the heating means of the apparatus 1 of the invention is advantageously housed in a central groove 102 of the element 10 formed exactly within the median spine on which the movable blades 7 are embedded.
• the lower part of the element 10 has two series of lateral fins along the central groove 102.
• the heating element 9 is selected as a CTP type resistor, connected via son 93 connection to the power supply means of the apparatus.
• These supply means, not shown, are further controlled by means of a sliding switch 11 accessible on the handle 3 of the apparatus. Through this switch 11 it is possible to control the ignition or the stopping of the supply means and thus the heating or not of the heating element 9.
• the heating element may also be simply plated by one of its faces, preferably on its largest face, against the thermally conductive material element.
• the fastening of the heating element can in this case be done for example by gluing, or preferably by elastic support against the thermally conductive element, for example by means of elastic clips.
• PTC resistor has the advantage of self-regulating thermally at a temperature determined by construction, for example at 250 ° C. It is then not necessary to provide electronic control components for the control device. the invention.
• a heating element 9 ceramic, a resistant wire wound on a mica element or a shielded heating element is also possible.
• the mounting of the heating element 9 on the wafer in the central groove of the element 10 which are secured to the fixed blades 6 has the advantage of providing a very compact hair treatment assembly, as well as a heating efficiency of the element 10 and thus increased fixed blades 6, with limited heat losses and good heating homogeneity of each of the fixed blades 6.
• the heating element 9 inserted in the groove 102 of the element 10 heats on these two flat faces 91, 92.
• the thermal energy released by the heating element 9 is dissipated substantially substantially by said faces 91, 92 to the inner walls of the groove 102 of the element 10 which itself then heats as well as the fixed blades 6 which form somehow fins on the upper surface of the element 10.
• the heating time of the fixed blades 6 is thus considerably accelerated.
• the movable blades 7 are also heated indirectly by their contact at their legs 722 with the element 10 but also and especially their plane contact contact with the fixed blades 6 in the absence of hair between the two blades 6, 7 of each pair of smoothing blades.
• the movable blades 7 cooperate with a control device 8 comprising two players 12 formed by guide rods on which the blades 7 are slidably mounted.
• a control device 8 comprising two players 12 formed by guide rods on which the blades 7 are slidably mounted.
• Each player is arranged in a lateral face of the element 10 and more precisely in a series of indentations forming a longitudinal recess above and on either side of the groove 102 of the element 10, so above each series of fins.
• Said blades 7 are threaded on the players 12 by orifices 73 provided for this purpose in substantially in the middle of said blades 7. They are each separated by a compression spring 13 and a spacer 14 integral with the player 12 and on which they rest in abutment .
• Each of the players 12 cooperates at a first end 121 with a trigger 15 which forms a lever for actuating the movable blades 7 relative to the fixed blades 6 in the smoothing head 2.
• This trigger 15 extends through a first end 151 to the inside of the smoothing head 2 of the apparatus 1 and a second end 152 inside the handle 3.
• the second end 152 of the trigger 15 protrudes through a window formed in the sleeve 3 and the first end 151 is pivotally mounted by two lugs 153 inserted in two holes 106 drilled on the element 10 at a first end 103 thereof as shown in Figure 3 and also visible in Figure 2.
• the two ends 151, 152 of the trigger are separated by a lever arm 155 making the junction between the smoothing head 2 and the handle 3 of the device 1.
• the trigger 15 comprises a housing 156 receiving a first end 161 of a return spring 16 in abutment by its second end 162 in a crucible 17 secured to the inner wall of the housing 4.
• the two players 12 are embedded in their first end 121 in circular lugs 154 formed in the end 151 of the trigger 15 and, at their second end 122 in orifices 104 provided at the second end 105 of the element 10, opposite the end 103.
• the apparatus of the invention finally comprises a comb 18 for protecting the blades 6, 7 for smoothing the hair.
• This comb 18 has teeth 181 in the form of arches leaving between them a space for the passage of locks of hair, this space being at least equal to the spacing of the blades 6.7 when pressing on the end 152 of the trigger 15 as previously described.
• the teeth 181 of the comb 18 cover the fixed blades 6 of the row 5 of smoothing blades.
• This comb 18 is advantageously fitted on the casing 4 of the smoothing head as shown in FIG. 1B.
• the hair straightener 1 is used as follows.
• the user controls the switch 11 heating of the heating element 9 housed in the element 10 carrying the fixed blades 6, thus causing the heating of these blades 6 and movable blades 7 which are at rest plated against the blades 6.
• the heating temperature reached (which can be signified by stopping a diode on the handle 3 for example) the user presses the end 152 of the trigger 15 to spread the blades 6, 7 and then passes the smoothing head 2 in his hair to penetrate strands to smooth between the blades 6,
• each movable blade 7 is independent and separated from the other movable blades 7 by a spring 13, the clamping force of the locks of hair between each pair of blades 6, 7 is automatically adapted at each pair of blades 6, 7 depending on the thickness of each of the locks due to the ability to move independent of the movable blades 7.
• This allows the set of smoothing blades 6, 7 to apply a balanced force and therefore a uniform treatment on each of the locks, this being not influenced by the thickness or length of the wick, all the wicks are thus properly treated during a single application of the device through an area of the hair.
• the rest of the hair mass is then treated in the same way, starting from the base of the scalp and up to the tip of the hair. hair, which allows to evenly treat even very short hair, these being seized from the closing of the clamping blades.
• smoothing apparatus 1 shown in the figures and described above is of simple brushing type, it is also possible to provide within the same apparatus means for blowing hot air to provide a smoothing blower, thus combining the smoothing and drying functions of the hair with independent heating means for the smoothing blades and for the supply air, and the two functions can be used independently or in combination.

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• Brushes (AREA)
• Hair Curling (AREA)

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• 2008
  • 2008-07-21 FR FR0854929A patent/FR2933852B1/fr not_active Expired - Fee Related
• 2009
  • 2009-07-21 WO PCT/FR2009/051452 patent/WO2010010286A2/fr active Application Filing
  • 2009-07-21 ES ES09736254T patent/ES2421382T3/es active Active
  • 2009-07-21 DE DE212009000096U patent/DE212009000096U1/de not_active Expired - Lifetime
  • 2009-07-21 EP EP09736254.5A patent/EP2312967B1/de active Active
  • 2009-07-21 CN CN200990100396XU patent/CN202168543U/zh not_active Expired - Lifetime

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