Method of producing metal rod of a blind

Abstract

A method of producing metal rod of a blind consists of a number of processing steps wherein a metal board is first roller pressed with a pattern-surfaced roller to produce decoration patterns thereon, the metal board with decoration patterns disposed thereon is then further pressed and bent to have a multiple of equidistant folding lines defined thereon, and, finally, the metal board is bent via the folding lines and soldered up at both lateral edges thereof to obtain a polygonal metal rod with decoration patterns disposed thereon. The folding lines and decoration patterns thereof are arranged alternately without intersection thereof so that the decoration patterns will not be disfigured when said metal board is rolled up by the folding lines thereof, and the folding lines, distributing evenly the pressing force applied onto the metal board, will keep the polygonal metal rod of a blind into a straight line.

What is claimed is:  
     
         1 . A method of producing metal rod of blinds, consisting of a number of processing steps as follows: 
 first, a metal board being roller pressed with a pattern-surfaced roller to produce decoration patterns thereon;    second, said metal board with decoration patterns disposed thereon being further pressed and bent via some rolling wheels to have a multiple of equidistant folding lines defined thereon;    third, said metal board thereof being located onto a processing machine to be bent and rolled via said folding lines thereof; both lateral edges f said metal board being then soldered up to obtain a polygonal metal rod with decoration patterns disposed thereon to complete the processing thereof.    
     
     
         2 . The method of producing metal rod of blinds as claimed in  claim 1  wherein the priority of the first and second steps in the producing process thereof can be switched to the same effect thereof.  
     
     
         3 . The method of producing metal rod of blinds as claimed in  claim 1  wherein said folding lines and decoration patterns thereof are arranged alternately without intersection thereof.