Integrally formed swivel hook

Abstract

A swivel hook includes a ring portion defining a hollow inner space and having an external engaging section; a first connecting portion having an upper section rotatably received in the inner space of the ring portion; and a second connecting portion rotatably engaged with the engaging section on the ring portion. The swivel hook is integrally formed by positioning the ring portion in a mold, and then injecting plastic material into the mold to sequentially or simultaneously form the first and the second connecting portion, so that the upper section of the first connecting portion is firmly attached to an inner wall surface of the ring portion, and the second connecting portion is engaged with the engaging section on the ring portion; and then downward pulling the first connecting portion of the initially molded swivel hook to allow it to freely rotate in the inner space of the ring portion.

1 . An integrally formed swivel hook, comprising: 
 a ring portion defining a hollow inner space and being provided on an outer circumferential wall surface with an engaging section;    a first connecting portion being injection molded to engage an upper section with said inner space of said ring portion; and    a second connecting portion being injection molded to engage with said engaging section on the outer circumferential wall surface of said ring portion.    
   
   
       2 . The integrally formed swivel hook as claimed in  claim 1 , wherein said engaging section is selected from the group consisting of a radially protruded annular flange and a radially inward annular recess.  
   
   
       3 . The integrally formed swivel hook as claimed in  claim 1 , wherein said ring portion is made of a metal material.  
   
   
       4 . The integrally formed swivel hook as claimed in  claim 1 , wherein said inner space of said ring portion is in the form of a truncated cone having a lower end diametrically larger than an upper end of said inner space.  
   
   
       5 . The integrally formed swivel hook as claimed in  claim 1 , wherein said inner space of said ring portion defines a downward and outward inclined inner wall surface for sail ring portion.  
   
   
       6 . The integrally formed swivel hook as claimed in  claim 1 , wherein said first connecting portion is in the form of a hook-shaped hanger, to which an article is connected and locked.  
   
   
       7 . The integrally formed swivel hook as claimed in  claim 1 , wherein said first connecting portion is made of a plastic material.  
   
   
       8 . The integrally formed swivel hook as claimed in  claim 1 , wherein said second connecting portion is in the form of a ring-shaped hanger, to which an article is connected.  
   
   
       9 . The integrally formed swivel hook as claimed in  claim 1 , wherein said second connecting portion is made of a plastic material.