Patent Publication Number: US-2007095102-A1

Title: Piece of Jewellery

Description:
RELATED APPLICATIONS  
      This application is a Continuation of PCT application serial number PCT/RU2005/000053 filed on Feb. 10, 2005, which in turn claims priority to RU2004110365 filed Apr. 6, 2004, both of which are incorporated herein by reference in their entirety. 
    
    
     FIELD OF THE INVENTION  
      The invention relates to the field of satisfying human needs of life, in particular, to jewellery pieces and other ornaments for wearing on the body with fixing by piercing.  
     BACKGROUND OF THE INVENTION  
      A jewellery piece is known containing a decorative element, a piercing pin with removable end head and connection of the piercing pin with the decorative element (JP No. 2001299414, A44C 7/00, 2001).  
      A disadvantage of the known jewellery piece is limited use only on body portions that are not subject to movement and active deformation, in particular, for decoration of ears. This disadvantage is conditioned by rigid connection of the piercing pin with the decorative element.  
      A more perfect and the closest analogue to the claimed jewellery piece is a jewellery piece containing a decorative element, a piercing pin with a removable end head and a hinged joint of the piercing pin with the decorative element having an male link and a female link (GB No. 2381183 A44C 15/00, 2003).  
      The above jewellery piece, while ensuring freedom of active movement of the corresponding body portion due to moveable joint of the piercing pin with the decorative element, allows it to be fixed to different body portions, for example, to eyebrows or stomach. However, in virtue of design peculiarities of the hinged joint of the piercing pin with the decorative element, its use entails possible damage of the skin the area of piercing as a result of pinching between the surfaces of the male link and the female link.  
     SUMMARY OF THE INVENTION  
      The technical result, which can be attained when implementing the invention, consists in enhanced safety of using the jewellery piece.  
      The above technical result is achieved by a jewellery piece containing a decorative element, a piercing pin with removable end head and a hinged joint of the piercing pin with the decorative element having a male link and a female link due to the fact that the male link is mounted on the decorative element, while the female link is mounted on the piercing pin, wherein the female link in the section of mating with the piercing pin is made with the external surface of convex shape with a curvilinear outline having the overall dimensions greater than the overall dimensions of the cross-section of the piercing pin.  
      As well as due to the fact that the female link is provided with a recess having the overall dimensions less than the overall dimensions of the curvilinear outline of the external surface. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      The essence of the claimed invention is explained by the drawings wherein  
       FIG. 1  gives the representation of the general view of the jewellery piece,  
       FIG. 2  gives the A-A section, and  
       FIG. 3  and  FIG. 4  give variants of hinged joint.  
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
      The jewellery piece comprises decorative element  1  connected to piercing pin  2  and to removable end head  3  (e.g., by a thread). The linkage between the decorative element  1  and the piercing pin  2  is provided in the form of a hinged joint formed by the male link  4  mounted on the decorative element  1  and the female link  5  mounted on the piercing pin  2  associated with the male link  4 , for example, with axle  6  or protrusions  7  fixing the ears on the conjugated surfaces. The female link  5  in section mating with the piercing pin  2  is provided with the external surface of convex shape and with a curvilinear outline  8 , having the overall dimensions (e.g., “D”) greater than the overall dimensions (e.g., “d”) of the cross-section of the piercing pin  2 , and may be provided with a recess  9  having overall dimensions (e.g., “h” and “b”) less than overall dimensions of the curvilinear outline of the external surface (e.g., “H” and “D”, respectively).  
      Preventing the injury is ensured by position of the skin portion in the piercing area between the removable head  3  and the external surface of the convex shape with the curvilinear outline  6  and by the impossibility of displacement of the above skin portion to the hinged joint area, wherein comfortable conditions of contacting the jewellery piece with the skin are predetermined by the shape and sizes of the female link  5  and mobility required for this, by the sizes of recess  9  that are less that the overall dimensions of the curvilinear outline of the external surface.