Elements for trinkets

Abstract

A modular element for making jewellery items, trinkets, and the like, having a convex outer surface and a through hole arranged at the top of the outer surface, where a wire, chain, or support for making the jewellery item, trinket, and the like can be inserted through the through hole, a main axis of symmetry passing through the hole, including a concave inner surface intended to at least partially accommodate the outer surface of a second element adjacent to the first one, where the outer surface can be inscribed on a rotation surface whose generatrix is an arc of a conic section and whose axis of rotation coincides with the main axis of symmetry. Embodiments also include a jewelry item.

1 . A modular element for making jewellery items, trinkets, and the like, comprising
 a convex outer surface,   a through hole arranged at the top of said outer surface, through which a wire, chain, or support for making said jewellery item, trinket, and the like, can be inserted,   a main axis of symmetry passing through the hole,   a concave inner surface configured to at least partially accommodate the outer surface of a second element adjacent to the first one,   wherein the outer surface is configured to be inscribed in a rotation surface whose generatrix is an arc of a conic section and whose axis of rotation coincides with said main axis of symmetry, and   the through hole presents two openings: a major opening to allow at least partial insertion of the successive element and of the string for connecting the elements, and a minor opening where the string is configured to pass, and said major opening has a cross section that is smaller than the maximum cross section of the external surface of the element itself.   
     
     
         2 . The modular element according to  claim 1 , wherein said conic section is a circumference, an ellipse, or a parabola. 
     
     
         3 . The modular element according to  claim 2 , wherein said main axis of symmetry coincides with the axis of symmetry of the parabola. 
     
     
         4 . The modular element according to  claim 2 , wherein said main axis of symmetry coincides with one of the axes of symmetry passing through the centre of symmetry of the ellipse. 
     
     
         5 . The modular element according to  claim 4 , wherein said rotation surface is a spheroid, and
 a ratio between a major axis and a minor axis of said spheroid is approximately 0.5.   
     
     
         6 . The modular element according to  claim 5 , wherein said element extends, along the direction parallel to the major axis of said spheroid, for a length equal to about 7/16 of said major axis. 
     
     
         7 . The modular element according to  claim 2 , wherein said main axis of symmetry coincides with one of the diameters of the sphere. 
     
     
         8 . The modular element according to  claim 7 , wherein said rotation surface is a portion of the sphere between said hole and a plane perpendicular to an axis of said hole and located at a distance from the centre of said sphere equal to 3/16 of the diameter thereof. 
     
     
         9 . The modular element according to  claim 1 , futher comprising a restriction ring that restricts the cross section of major opening. 
     
     
         10 . A jewelry item, comprising:
 a plurality of modular elements according to  claim 1 , and   a support, comprising a wire or chain, inserted in the through holes of each of said modular elements,   wherein a convex portion of said outer surface of each of said elements is at least partially inserted in a concave portion of said inner surface of an adjacent element.