Accessory for curling locks of hair

Abstract

A hair styling accessory for attachment to a blowing and heating device may include a cylindrical connector and a frustoconical-shaped mandrel, having a distal end and a proximal end, the distal end having a greater diameter than the proximal end, the proximal end being connected to the cylindrical connector. The mandrel has a plurality of air outlet ports. A frustoconical-shaped baffle is located within the mandrel. The cylindrical connector has an annular slot enabling the creation, when in use, of a protective layer of hot air around the mandrel.

1 . An accessory ( 1 ) for styling hair, designed to be attached to a blowing and heating device, comprising:
 a cylindrical connector ( 2 );   a frustoconical mandrel ( 3 ) comprising a distal side ( 7 ) and a proximal side ( 8 ), the distal side ( 7 ) having a diameter greater than the proximal side ( 8 ), said proximal side ( 8 ) being connected to the cylindrical connector ( 2 ), said mandrel ( 3 ) comprising a plurality of air outlet orifices ( 13 ); and   a frustoconical deflector ( 4 ) located inside the mandrel ( 3 );   said cylindrical connector ( 2 ) comprising an annular slot ( 6 ) allowing, in use, a protective hot air knife ( 10 ) to be generated around the mandrel ( 3 ).   
     
     
         2 . The accessory of  claim 1 , wherein a surface of the frustoconical deflector ( 4 ) comprises obstacles ( 5 ) configured, in use, to radially deflect an internal hot air flow ( 9 ) through the air outlet orifices ( 13 ) of the mandrel ( 3 ). 
     
     
         3 . The accessory of  claim 2 , wherein the obstacles on the surface of the frustoconical deflector ( 4 ) comprise shoulders ( 5 ) formed by a succession of interconnected cylinders ( 14 ) having increasing diameters. 
     
     
         4 . The accessory of  claim 3 , wherein a distance between the cylinders ( 14 ) is 8 to 14 mm. 
     
     
         5 . The accessory of  claim 3 , wherein a conicity of the deflector ( 4 ) is greater than that of the mandrel ( 3 ). 
     
     
         6 . The accessory of  claim 3 , wherein the shoulders ( 5 ) are perpendicular to a longitudinal axis of the deflector ( 4 ). 
     
     
         7 . The accessory of  claim 1 , wherein the mandrel ( 3 ) is connected to the cylindrical connector ( 2 ) by a star-shaped attachment ( 16 ). 
     
     
         8 . The accessory of  claim 1 , wherein a ratio of the diameter of the distal side ( 7 ) of the mandrel ( 4 ) to the diameter of the proximal side ( 8 ) of the mandrel is 1.1 to 2. 
     
     
         9 . The accessory of  claim 1 , wherein the mandrel ( 3 ) comprises, at a base of the mandrel, an opening ( 15 ) configured to allow passage of the internal hot air flow ( 9 ) supplying the deflector ( 4 ), a ratio of a surface area of the opening ( 15 ) to a surface area of the annular slot ( 6 ) being 2 to 5. 
     
     
         10 . The accessory of  claim 1 , wherein a ratio of a total surface area of all the air outlet orifices ( 13 ) to a surface area of the annular slot ( 6 ) is 15 to 25. 
     
     
         11 . The accessory of  claim 1 , wherein a height of the annular slot ( 6 ) is 0.5 to 2 mm. 
     
     
         12 . The accessory of  claim 1 , wherein the mandrel ( 3 ) comprises a conductive metal. 
     
     
         13 . The accessory of  claim 12 , wherein the mandrel comprises aluminum or copper. 
     
     
         14 . The accessory of  claim 12 , wherein the mandrel includes a ceramic layer. 
     
     
         15 . A blower brush ( 11 ) comprising:
 a handle;   a blowing and heating device; and   the accessory ( 1 ) of  claim 1  attached to the handle of the blower brush.   
     
     
         16 . The blower brush ( 11 ) according to  claim 15 , further comprising a lock engaging with the lock ( 12 ) of the accessory ( 1 ) on the brush ( 11 ), such that the accessory is removable.