Folding chair and folding method thereof

Abstract

A folding chair is disclosed. When the folding chair is folded, two supporting assemblies are firstly folded and furled, then the first folding is carried out, one supporting assembly is folded relative to a front supporting rod and a rear supporting rod, then the second folding is carried out. The other supporting assembly is folded relative to the front supporting rod and the rear supporting rod, and when the folding chair is normally used, the two first mounting rods are positioned by the first positioning rod. The two second mounting rods are positioned by the second positioning rod. The folding chair can be subjected to a secondary folding, so that the volume of the folding chair is smaller after being folded, and the stability of the folding chair is better during normal use.

What is claimed is: 
     
         1 . A folding chair comprising:
 two support assemblies; each support assembly comprises a front leg, a rear leg, a first mounting rod and a second mounting rod; a first soft cloth as a seat surface is connected between the two first mounting rods; a second soft cloth as the backrest surface is connected between the two second mounting rods;   a front supporting rod; both ends of the front supporting rod are rotatably connected with the lower parts of the two front legs respectively;   a rear supporting rod; both ends of the rear supporting rod are rotatably connected with the lower parts of the two rear legs respectively;   two ends of the first positioning rod are detachably connected with one end of the two first mounting rods respectively;   two ends of the second positioning rod are detachably connected with the upper ends of the two second mounting rods respectively;   each support assembly has an unfolding state and a folding state; when the two support assemblies are both in the unfolding state, the first soft cloth and the second soft cloth are relatively unfolded; when the two support assemblies are in a folding state, the first soft cloth and the second soft cloth are relatively folded, and the front support rod and the rear support rod are mutually closed; the rotation axes at the two ends of the front support rod are respectively coincident with the rotation axes at the two ends of the rear support rod.   
     
     
         2 . The folding chair of  claim 1 , wherein each support assembly further comprises a handrail, a first connecting piece and a second connecting piece;
 the front leg, the rear leg and the handrail are mutually and rotatably connected; the front leg is rotatably connected with the first mounting rod; the rear end of the handrail is rotatably connected with the second mounting rod; the lower part of the second mounting rod is rotatably connected with the upper end of the first connecting piece and the upper end of the second connecting piece respectively; the lower end of the first connecting piece is rotatably connected with the rear leg; the lower end of the second connecting piece is rotatably connected with the first mounting rod.   
     
     
         3 . The folding chair of  claim 1 , wherein the folding chair further comprises a third positioning rod; and two ends of the third positioning rod are rotatably connected with the other ends of the two first mounting rods respectively. 
     
     
         4 . The folding chair of  claim 1 , wherein both ends of the first positioning rod are respectively spliced with the two first mounting rods, and both ends of the second positioning rod are respectively spliced with the two second mounting rods. 
     
     
         5 . The folding chair of  claim 4 , wherein both ends of the first positioning rod are arc-shaped; both ends of the first positioning rod are provided with first splicing parts and the two first splicing parts are respectively spliced and matched with the front ends of the two first mounting rods;
 both ends of the second positioning rod are arc-shaped, both ends of the second positioning rod are provided with second splicing parts; and the two second splicing parts are spliced and matched with the front ends of two second mounting rods respectively.   
     
     
         6 . A folding method for the folding chair of  claim 1 , comprising:
 separating the first positioning rod from the two first mounting rods, and separating the second positioning rod from the two second mounting rods;   folding the two support assemblies; the first soft cloth and the second soft cloth are relatively folded; the front support rod and the rear support rod are mutually closed, and the rotation axes of the two ends of the front support rod are respectively superposed with the rotation axes of the two ends of the rear support rods;   folding one of the support assemblies relative to the front supporting rod and the rear supporting rod; and   folding the other support assembly relative to the front supporting rod and the rear supporting rod.