Button structure

Abstract

An improved button structure is composed of a pillar element and a zinc casting body. The pillar element is provided with a hollow cylinder at the bottom and an expanding disk, which is provided with pluralities of hollow-out holes, on the top. The zinc casting body is provided with a smooth plane at the upper surface, and pluralities of engaging posts, which have positioning portions, at the bottom surface. The hollow-out holes of the pillar element are mounted on the engaging posts of the zinc casting body, such that the pillar element can be positioned at the positioning portions of the engaging posts and further mortised to lock to the top end of the engaging posts which extrude out of the disk to form blunt heads to accomplish a firm combination, thereby enhancing the benefit in production.

1 . An improved button structure, comprising a pillar element and a zinc casting body; 
 the pillar element is provided with a hollow cylinder at the bottom and an expanding disk, which is provided with pluralities of hollow-out holes, on the top;    the zinc casting body is provided with a smooth plane at the upper surface, and pluralities of engaging posts, which have positioning portions, at the bottom surface;    in assembly, the hollow-out holes of the pillar element are mounted on the engaging posts of the zinc casting body, such that the pillar element can be positioned at the positioning portions of the engaging posts and further mortised to lock to the top end of the engaging posts which extrude out of the disk to form blunt heads to accomplish a film combination.    
   
   
       2 . The improved button structure according to  claim 1 , wherein a step is form at the middle section of each engaging post at the zinc casting body.  
   
   
       3 . The improved button structure according to  claim 1 , wherein the engaging posts of zinc casting body are tapered.  
   
   
       4 . The improved button structure according to  claim 1 , wherein a specific trademark specimen is provided on the smooth plane.  
   
   
       5 . The improved button structure according to  claim 1 , wherein the pluralities of hollow-out holes provided on the disk of the pillar element and the pluralities of engaging posts provided at the zinc casting body are identical in amount.