Bead string

Abstract

A bead string includes a thread element and multiple beads firmly attached to the thread element; each bead containing one or a plurality of inner layer and one or a plurality of first outer layer; both of the inner layer and the first outer layer of the bead being molded by respectively injecting two different types of plastic material into a first cavity and a second cavity; one or a plurality of thread element passing through the first cavity; the second cavity accommodating the thread element and the inner layer of bead; and the first outer layer tightly covering up entire portion or a certain portion of the inner layer to correct defectives of a finished product found with the prior art while significantly simplifying manufacturing process and saving time and cost.

1 . A bead string comprising a thread element and multiple beads spaced at intervals and firmly attached to the thread element; each bead containing one or a plurality of inner layer and one or a plurality of a first outer layer; both of the inner layer and the first outer layer of the bead being molded by respectively injecting plastic into a first cavity; one or a plurality of thread element passing through the first cavity; the second cavity accommodating the thread element and the inner layer of bead; and the first outer layer tightly covering up the inner layer. 
   
   
       2 . The bead string as claimed in  claim 1 , wherein the inner layer contains a bulb and tow pillars respectively extending from an upper end and a lower end of the bulb; and the first outer layer indicates a spherical form tightly covering up the bulb and a certain portion of those pillars of the inner layer. 
   
   
       3 . The bead string as claimed in  claim 1 , wherein the first outer layer is further covered with one or a plurality of layer of plastic material. 
   
   
       4 . The bead string as claimed in  claim 1 , wherein the inner layer relates to a formation of an animal. 
   
   
       5 . The bead string as claimed in  claim 1 , wherein the inner layer relates to a solid geometric form.