Folding chair

Abstract

The invention is to provide a folding chair, which includes seat frame, forelegs, rear legs, and links. Said foreleg, rear leg, seat frame and link make up of a folding four-connecting-rod configuration. Said foreleg being connected to said seat frame by a reinforced portion. The utility achieves the purpose of strengthen connection of the folding chair only by add a reinforced portion in present structure, said structure of the folding chair is simply but utility.

What is claimed is:  
     
         1 . An improved folding chair comprising: 
 A seat frame;    A pair of forelegs;    A pair of rear legs, and    A pair of links. 
 Said four structures make up of a folding four-connecting-rod configuration.  
 The characteristic of the folding chair is said forelegs being connected to said seat frame by a reinforced portion.  
   
     
     
         2 . The folding chair as claimed in  claim 1 , wherein said reinforced portion is flaky, and one side of said reinforced portion being attached to the profile of said seat frame.  
     
     
         3 . The folding chair as claimed in  claim 1 , wherein said reinforced portion is angular, and the interior angle of said reinforced being attached to the profile of said seat frame.  
     
     
         4 . The folding chair as claimed in  claim 1 , wherein the foreleg  2  rivets bond with the link  4  into a pivot link by rivet  2 . 1 ; said foreleg  2  rivets bond with the reinforced portion  5  into a pivot link by rivet  1 . 2 ; the seat frame  1  joins said reinforced portion  5  together by rivets  1 . 1  and  1 . 3 ; said seat frame  1  rivets bond with the rear leg  3  into a pivot link by rivet  4 . 3 ; said rear leg  3  rivets bond with said link  4  into a pivot link by rivet  4 . 2 . Said four structures make up of a folding four-connection-rod configuration.  
     
     
         5 . The folding chair as claimed in  claim 1 , wherein the foreleg  2  rivets bond with the reinforced portion  5  into a pivot link by rivet  1 . 2 ; the seat frame  1  joints said reinforced portion  5  together by rivet  1 . 2 ; the link  4  rivets bond with said seat frame  1  into a pivot link by rivet  1 . 3 ; said link  4  rivets bond with the rear leg  3  into a pivot link by rivet  4 . 2 ; said rear leg  3  joins the link hinge  6  together by the self-threading screw  6 . 1 ; said foreleg  2  rivets bond with said link hinge  6  into a pivot link by rivet  2 . 1 . Said four structures make up of a folding four-connection-rod configuration.  
     
     
         6 . The folding chair as claimed in  claim 1 , wherein the link hinge  6  joins the guide lever  3 . 2  together by the self-threading screw  6 . 1 ; said guide lever  3 . 2  can slide up and down in the rider  3 . 1  which being mounted on the rear leg; the link  4  being welt on the rear leg, and said link  4  rivets bond with the seat frame  1  into a pivot link by rivet  1 . 3 ; the reinforced portion  5  rivets bond with the foreleg  1  into a pivot link by rivet  1 . 2 ; said seat frame  1  joins said reinforced portion  5  together by rivets  1 . 1  and  1 . 2 ; said foreleg  2  rivets bond with said link hinge  6  into a pivot link by rivet  2 . 1 . Thereby, said structures make up of a folding crank rocker framework.