Folding sofa

Abstract

The present invention relates to a folding sofa, comprising a sofa body and support legs on both sides; the support leg is composed of movably, cross hinged front support rods and rear support rods, the front support rod is higher than the rear support rod, and the higher part forms a backrest section. The sofa body is made from a soft fabric through processing and forming, comprises an integrated seat cushion, armrest and backrest; where, the outer side of the backrest and armrest are respectively provided with a backrest cover and an armrest cover. The front and rear support rods directly support the sofa body, the seat cushion is lifted by the backrest and armrest for forming, is comfortable to sit, and forms the wide volume peculiar to sofa with the aid of the backrest cover and armrest cover.

We claim: 
     
         1 . A folding sofa, comprising a sofa body and support legs equivalent or symmetrical on both sides; the support leg is composed of movably cross hinged front support rods and rear support rods, the front support rod is higher than the rear support rod, and the higher part forms a backrest section; the front support rods on both sides are fixed with a front cross rod to become one, and the rear support rods are fixed with a rear cross rod to become one. The sofa body is made from a soft fabric through processing and forming, and comprises an integrated seat cushion, armrest and backrest. Its characteristics are that the outer side of the backrest and armrest are respectively provided with a backrest cover and an armrest cover, and the backrest covers on the backrest section with the aid of the backrest cover; the armrest covers on the upper end of the rear support rods with the aid the armrest cover, a horizontal reinforcing rib belt is arranged between the upper end of the rear support rods and front support rods, and the reinforcing rib belt is wrapped in the armrest cover. When the folding sofa is unfolded in place, the reinforcing rib belt is tightened up, and plays a role in supporting the armrest. 
     
     
         2 . A folding sofa defined in  claim 1 , wherein, the reinforcing rib belt is sewn directly on the inner side of the armrest. 
     
     
         3 . A folding sofa defined in  claim 1 , wherein, one end of the reinforcing rib belt is fixed on the upper end of the rear support rod, and the other end of it is fixed on the front support. 
     
     
         4 . A folding sofa defined in  claim 1 , wherein, the lower edge of the armrest cover is not higher than that of the seat cushion; lower edge of the backrest cover is provided with a vertical skirt sweep, the lower edge of which is flushed with the lower edge of the armrest cover, and both sides of which are respectively sewn with the armrest cover. 
     
     
         5 . A folding sofa defined in  claim 4 , wherein, the armrest cover is sewn with a shielding cloth along the front edge of the rear support rod, and when the folding sofa is unfolded in place, the shielding cloth can be used to drive the seat cushion to unfold. 
     
     
         6 . A folding sofa defined in  claim 1 , wherein, the armrest cover is sewn with a shielding cloth along the front edge of the rear support rod, and when the folding sofa is unfolded in place, the shielding cloth can be used to drive the seat cushion to unfold. 
     
     
         7 . A folding sofa defined in  claim 1 , wherein, the front support rod on both sides and the front cross rod are bent into a U-shaped frame by a rod, the front cross rod is arranged at one end of the backrest section to support the backrest cover; the two rear support rods and rear cross rod are bent into a U-shaped frame by a rod, and the rear cross rod touches the ground. 
     
     
         8 . A folding sofa defined in  claim 7 , wherein, a link rod is also hinged between the hinge points of the front support rods on both sides and the rear support rods. 
     
     
         9 . A folding sofa defined in  claim 8 , wherein, the link rod is provided with a bending part on either end. Both bending parts are respectively clinging to the front support rods on both sides, and are fixed together through riveting or welding. 
     
     
         10 . A folding sofa defined in  claim 1 , wherein, a link rod is also hinged between the hinge points of the front support rods on both sides and the rear support rods. 
     
     
         11 . A folding sofa defined in  claim 10 , wherein, the link rod is provided with a bending part on either end. Both bending parts are respectively clinging to the front support rods on both sides, and are fixed together through riveting or welding. 
     
     
         12 . A folding sofa defined in  claim 1 , wherein, a belt is arranged on the outer side of the backrest cover. Both ends of the belt are respectively sewn on the backrest cover in the backrest section on both sides. After the folding sofa is unfolded in place, the belt may be turned frontward to buckle the front end of the armrest and the upper end of the rear support rod. 
     
     
         13 . A folding sofa defined in  claim 4 , wherein, a belt is arranged on the outer side of the backrest cover. Both ends of the belt are respectively sewn on the backrest cover in the backrest section on both sides. After the folding sofa is unfolded in place, the belt may be turned frontward to buckle the front end of the armrest and the upper end of the rear support rod. 
     
     
         14 . A folding sofa defined in  claim 1 , wherein, the belt is an elastic tape, or a fabric tape with a buckle at the end.