Steam Hair-Styling Appliance

Abstract

The invention relates to a steam hair-styling appliance (1) for shaping the hair, comprising: —a first jaw (2) and a second jaw (3), arranged opposite one another and hinged together, a first treatment surface (4) being supported by the first jaw (2) and a second treatment surface being supported by the second jaw (3), the first and second treatment surfaces being configured to grip at least one lock of hair, and —a liquid reservoir, said first and/or second jaw (2, 3) additionally comprising: —a system for vapourising (7) the liquid to form steam, comprising at least one vaporisation chamber (71) which has an inner surface and is in communication via an injection tube (74) with the liquid reservoir, said injection tube (74) having a free end which forms a point for injecting the liquid into the vaporisation chamber (71), and —a system for dispensing (7) the steam from the vaporisation system (7), comprising at least one steam dispensing port (75) directed toward the at least one lock of hair, characterised in that the injection tube (74) comprises an opening extending substantially along the length of said injection tube (74) from the free end which forms the injection point, said opening being a shape that allows the liquid coming from the reservoir to run into the vaporisation chamber (71) in the event of accumulation and deposition of scale at the free end of the injection tube (74).

1 . A steam hair-styling appliance for shaping hair, comprising:
 a first jaw and a second jaw arranged opposite one another and hinged together, a first treatment surface being supported by the first jaw and a second treatment surface being supported by the second jaw, the first and second treatment surfaces configured to grip at least one lock of hair,   a liquid reservoir,   said first and/or second jaw additionally comprising:   a system for vaporizing a liquid to form steam, comprising at least one vaporization chamber having an inner surface and in communication via an injection tube with the liquid reservoir, said injection tube having a free end which forms a point for injecting the liquid into the at least one vaporization chamber,   a system for dispensing the steam from the system for vaporizing, comprising at least one steam dispensing port directed toward the at least one lock of hair,   wherein the injection tube comprises an opening extending substantially along a length of the injection tube from the free end which forms the point, said opening being a shape configured to allow the liquid coming from the liquid reservoir to run into the at least one vaporization chamber in the event of accumulation and deposition of scale at the free end of the injection tube.   
     
     
         2 . The steam hair-styling appliance according to  claim 1 , wherein the opening comprises at least one slit extending in an axial direction substantially parallel to the injection tube. 
     
     
         3 . The steam hair-styling appliance according to  claim 2 , wherein the at least one slit comprises at least two slits extending on sides of the injection tube, the at least two slits defining a plane extending substantially parallel to the inner surface of the at least one vaporization chamber. 
     
     
         4 . The steam hair-styling appliance according to  claim 1 , wherein the opening is a cut-out over a half-section of the injection tube, extending in an axial direction substantially parallel to the injection tube. 
     
     
         5 . The steam hair-styling appliance according to  claim 4 , wherein the injection tube is arranged in the at least one vaporization chamber such that the cut-out is on an opposite side of the inner surface of the at least one vaporization chamber. 
     
     
         6 . The steam hair-styling appliance according to  claim 1 , wherein the injection tube is beveled at the free end forming the point. 
     
     
         7 . The steam hair-styling appliance according to  claim 1 , wherein a ratio of a height of the at least one vaporization chamber to an inner diameter of the injection tube is between 0.55 and 0.75. 
     
     
         8 . The steam hair-styling appliance according to  claim 1 , wherein a hydrophilic layer extends over the inner surface of the at least one vaporization chamber. 
     
     
         9 . The steam hair-styling appliance according to  claim 8 , wherein the hydrophilic layer extends over the entire inner surface of the at least one vaporization chamber. 
     
     
         10 . The steam hair-styling appliance according to  claim 8 , wherein the hydrophilic layer comprises a woven material. 
     
     
         11 . The steam hair-styling appliance according to claim  8 , wherein a portion of the hydrophilic layer runs partially into the free end of the injection tube. 
     
     
         12 . The steam hair-styling appliance according to  claim 1 , wherein the at least one vaporization chamber comprises a hydrophobic layer arranged below the injection tube, at least at the point. 
     
     
         13 . The steam hair-styling appliance according to  claim 12 , wherein the hydrophobic layer comprises polytetrafluoroethylene 
     
     
         14 . The steam hair-styling appliance according to  claim 12 , wherein the hydrophobic layer is positioned below the point and on a surface measuring between 10 mm 2  and 2,000 mm 2    
     
     
         15 . The steam hair-styling appliance according to  claim 12 , wherein the hydrophobic layer is mounted in the at least one vaporization chamber and held in position by an immobilization device comprising an element for centering the hydrophobic layer relative to the point. 
     
     
         16 . The steam hair-styling appliance according to  claim 1 , wherein the at least one vaporization chamber includes first and second vaporization chambers, wherein the second vaporization chamber communicates fluid to the first vaporization chamber and comprises a plurality of baffles. 
     
     
         17 . The steam hair-styling appliance according to  claim 1 , wherein the system for dispensing further comprises a dispensing chamber in which the at least one steam dispensing port is arranged, said dispensing chamber receiving steam from the at least one vaporization chamber. 
     
     
         18 . The steam hair-styling appliance according to  claim 16 , wherein
 the system for dispensing further comprises a dispensing chamber in which the at least one steam dispensing port is arranged, said dispensing chamber receiving steam from the at least one vaporization chamber, and   wherein the dispensing chamber is arranged laterally to the first vaporization chamber and to the second vaporization chamber.   
     
     
         19 . The steam hair-styling appliance according to  claim 10 , wherein the woven material is glass fabric.