Hair curler for winding up human hair

Abstract

A hair curler ( 1 ) includes a supporting element ( 2 ) having a generally hollow design. The supporting element ( 2 ) includes a middle portion ( 3 ) and two end portions ( 4 ). The middle portion ( 3 ) forms a winding surface to support wound up hair. The first and second fixing portions ( 4 ) each include a majority of fixing elements ( 6 ) protruding from the fixing portion ( 4 ) in a radial direction to attach the hair curler ( 1 ) to a head ( 8 ). The diameters ( 14 ) of the first and second fixing portion ( 4 ) are approximately identical. The diameters ( 14 ) of the first and second fixing portion ( 4 ) are substantially greater than the diameter ( 12 ) of the middle portion ( 3 ) such that the wound up hair ( 10 ) is only located in the region of the middle portion ( 3 ), and the hair curler ( 1 ) may be securely connected to the head ( 8 ).

I claim:  
     
         1 . A hair curler for winding up human hair, comprising: 
 a supporting element having a generally hollow design, said supporting element including 
 a first end and a second end, a middle portion having a diameter and being arranged between said first end and said second end, said middle portion being designed and arranged to form a winding surface to support wound up hair,  
 a first fixing portion having a diameter, said first fixing portion being arranged at said first end of said hair curler, said first fixing portion including a plurality of fixing elements being designed and arranged to protrude from said first fixing portion in a radial direction to attach said hair curler to a head, and  
 a second fixing portion having a diameter, said second fixing portion being arranged at said second end of said hair curler, said second fixing portion including a plurality of fixing elements being designed and arranged to protrude from said second fixing portion in a radial direction to attach said hair curler to a head,  
 said diameters of said first and second fixing portion being approximately identical,  
 said diameters of said first and second fixing portion being substantially greater than the diameter of said middle portion.  
   
     
     
         2 . The hair curler of  claim 1 , wherein said diameters of said first and second fixing portion are at least 20 percent greater than the diameter of said middle portion.  
     
     
         3 . The hair curler of  claim 1 , wherein said fixing elements are designed as one of hooks being part of a hook band being connected to said fixing portions and hooks being directly connected to said fixing portions.  
     
     
         4 . The hair curler of  claim 1 , wherein said middle portion and each of said first and second fixing portions has an axial length, the axial length of said middle portion being approximately two times to six times greater than the axial length of each of said first and second fixing portions.  
     
     
         5 . The hair curler of  claim 2 , wherein said middle portion and each of said first and second fixing portions has an axial length, the axial length of said middle portion being approximately two times to six times greater than the axial length of each of said first and second fixing portions.  
     
     
         6 . The hair curler of  claim 1 , wherein each of said first and second fixing portions has an axial length, said first and second fixing portions being designed to have a diameter being approximately constant along the axial length.  
     
     
         7 . The hair curler of  claim 1 , wherein the value of the difference between the diameters of said first and second fixing portion and the diameter of said middle portion is chosen to be coordinated with the length of the hair to be curled.  
     
     
         8 . The hair curler of  claim 1 , wherein the value of the difference between the diameters of said first and second fixing portion and the diameter of said middle portion is approximately between 2 mm and 8 mm.  
     
     
         9 . The hair curler of  claim 1 , wherein the diameter of said middle portion is designed to be approximately constant.  
     
     
         10 . The hair curler of  claim 5 , wherein the diameter of said middle portion is designed to be approximately constant.  
     
     
         11 . The hair curler of  claim 1 , wherein said middle portion and said first and second fixing portion are connected by a radial step.  
     
     
         12 . The hair curler of  claim 1 , wherein said middle portion and said first and second fixing portion each have a cross section of one of a circular shape, an oval shape and a rectangular shape.  
     
     
         13 . The hair curler of  claim 1 , wherein said middle portion has one of a completely roughened surface, a partly roughened surface, a corrugated surface and a spinous surface.  
     
     
         14 . The hair curler of  claim 1 , wherein said supporting element is designed to be substantially stiff.  
     
     
         15 . The hair curler of  claim 1 , wherein said supporting element is designed to be substantially soft and elastic.  
     
     
         16 . A hair curler for winding up human hair, comprising: 
 a first end and a second end;    a middle portion having a diameter and being arranged between said first end and said second end, said middle portion being designed and arranged to support hair to be wound up;    a first fixing portion having a diameter and a circumference, said first fixing portion being arranged at said first end of said supporting element, said first fixing portion including a plurality of fixing elements being designed and arranged to protrude from said circumference of first fixing portion in a radial direction to attach said hair curler to a head; and    a second fixing portion having a diameter and a circumference, said second fixing portion being arranged at said second end of said supporting element, said second fixing portion including a plurality of fixing elements being designed and arranged to protrude from said circumference of second fixing portion in a radial direction to attach said hair curler to a head, 
 said diameters of said first and second fixing portion being approximately identical,  
 said diameters of said first and second fixing portion being at least 20 percent greater than the diameter of said middle portion.  
   
     
     
         17 . The hair curler of  claim 16 , wherein said fixing elements are designed as one of hooks being part of a hook band being connected to said fixing portions and hooks being directly connected to said fixing portions.  
     
     
         18 . The hair curler of  claim 1 , wherein said middle portion and each of said first and second fixing portions has an axial length, the axial length of said middle portion being approximately two times to six times greater than the axial length of each of said first and second fixing portions.  
     
     
         19 . The hair curler of  claim 1 , wherein each of said first and second fixing portions has an axial length, said first and second fixing portions being designed to have a diameter being approximately constant along the axial length.  
     
     
         20 . The hair curler of  claim 16 , wherein said middle portion a cross section of a circular shape and a concave design in a way that it has a comparatively smaller diameter in a center region of said middle portion and a comparatively greater diameter in an outer region of said middle portion close to said end portions.