Device for treating the hair

Abstract

A device for treating the hair, having two hair treatment jaws that are movable relative to one another between a spaced-apart configuration and a moved-together configuration, an internal treatment member having an internal heating surface, which extends over one of the jaws towards the other of the jaws in the moved-together configuration and is configured to come into contact with the hair extending between the jaws, at least one internal treatment member having a first lateral edge and an opposite second lateral edge, the first lateral edge being configured such that an angle formed between a median plane of the device, extending between the jaws in the moved-together configuration of the jaws, and hair under mechanical tension, bearing on the first lateral edge, and on an outer surface of the corresponding jaw, adjacent to and separated from the internal treatment member, is less than or equal to 120°, and strictly greater than 90°.

1 . A device for treating the hair, comprising:
 two hair treatment jaws that are movable relative to one another between a spaced-apart configuration for inserting hair to be treated between said jaws and a moved-together configuration for treating the hair,   an internal treatment member having an internal surface for heating the hair to be treated, which extends over one of the two jaws towards the other of the jaws in the moved-together configuration of the two jaws and is configured to come into contact with the hair extending between the two jaws in the moved-together configuration thereof,   the internal treatment member having a first lateral edge and a second lateral edge opposite to the first lateral edge, the first lateral edge being configured such that an angle formed between a median plane of the device, extending between the jaws in the moved-together configuration of the jaws, and hair under mechanical tension, bearing on the first lateral edge of the corresponding internal treatment member, and on an outer surface of the jaw bearing the internal treatment member, adjacent to and separated from the corresponding internal treatment member, is less than or equal to  120 °, and strictly greater than 90°.   
     
     
         2 . The device according to the  claim 1 , in which the angle formed between the median plane of the device and hair under tension is less than or equal to 110° and greater than or equal to 95°. 
     
     
         3 . The device according to the  claim 1 , in which the angle formed between the median plane of the device and hair under tension is equal to 105°±5°. 
     
     
         4 . The device according to  claim 1 , having two internal treatment members that each extend over one of the jaws and each have at least one internal heating surface, the internal heating surfaces facing one another and being configured to grip the hair between one another in the moved-together configuration of the jaws. 
     
     
         5 . The device according to  claim 1 , wherein the first lateral edge is closer to the outer surface of the jaw bearing the internal treatment member that is adjacent thereto than the second lateral edge is to the outer surface of said jaw that is adjacent thereto. 
     
     
         6 . The device according to  claim 1 , wherein the or each internal treatment member has an internal plate extending between the jaws having a contact surface with the hair, the contact surface with the hair forming the internal heating surface, the internal treatment member or members being mounted on the corresponding jaw by being inserted into a housing of the jaw that opens towards the other jaw. 
     
     
         7 . The device according to  claim 6 , wherein the, at least one or each internal treatment member is asymmetric with respect to a median plane of the housing of the corresponding jaw, orthogonal to the median plane of the device extending between the jaws in the moved-together configuration of the jaws. 
     
     
         8 . The device according to  claim 6 , wherein at least one of the internal plates or each of them protrudes laterally from the abovementioned support at the first lateral edge by a distance greater than or equal to 1 mm, and/or less than or equal to 3 mm. 
     
     
         9 . The device according to  claim 1 , wherein the, at least one or each internal treatment member is spaced apart from a plane lying laterally on the outer surfaces of the two adjacent jaws and separated from the corresponding internal treatment member by a distance at rest less than or equal to 6 mm. 
     
     
         10 . The device according to  claim 1 , wherein the first lateral edge of the internal treatment member or of at least one of the internal treatment members has an edge corner configured to come into contact with the hair under tension bearing on the first lateral edge and the adjacent outer surface of the jaw bearing the internal treatment member. 
     
     
         11 . The device according to  claim 1 , having at least one external treatment member for heating the hair to be treated that extends over one of the two jaws towards the exterior of the jaws. 
     
     
         12 . The device according to  claim 1 , having an additional hair treatment member that extends from one of the two jaws towards the other jaw in the moved-together configuration of the two jaws, and is arranged on said jaw laterally in the moved-together configuration of the jaws with respect to the internal treatment member. 
     
     
         13 . The device according to  claim 1 , including a recess in the jaw between the first or second lateral edge of the internal treatment member and the outer surface of the jaw carrying the corresponding internal treatment member and adjacent to the corresponding internal treatment member. 
     
     
         14 . The device according to  claim 1 , wherein the first lateral edge may extend so that it forms a protruding lateral relief. 
     
     
         15 . The device according to  claim 7 , wherein the, at least one or each internal treatment member is asymmetric exhibits a transverse distance between the first lateral edge and the transverse median plane (P 1 ) of the housing greater than that between the second lateral edge and the transverse median plane of the housing.