Folding Chair

Abstract

A folding chair is disclosed that includes a backrest portion, a seat portion, two armrests, and two pairs of a front leg and a back leg each, the front leg and the back leg of each pair being pivotably connected at top ends by a hinge, a bottom end of the backrest portion being pivotably connected to a back end of the seat portion by at least one hinge, the back legs of both pairs each comprising a rail running to a lower portion of the back legs, wherein the backrest portion and the seat portion are on both sides slidably connected to the rails at the position of the at least one hinge, a back end of the armrests being pivotably connected to the backrest portion, and an underside of the armrests being attached to the respective top end of the pairs of legs, and the seat portion being pivotably connected to the front legs on each side.

1 . A folding chair, comprising:
 a backrest portion,   a seat portion,   two armrests, and   two pairs of a front leg and a back leg each,   the front leg and the back leg of each pair being pivotably connected at top ends by a hinge,   a bottom end of the backrest portion being pivotably connected to a back end of the seat portion by at least one hinge,   the back legs of both pairs each comprising a rail running to a lower portion of the back legs, wherein the backrest portion and the seat portion are on both sides slidably connected to the rails at the position of the at least one hinge,   a back end of the armrests being pivotably connected to the backrest portion, and an underside of the armrests being attached to the respective top end of the pairs of legs, and the seat portion being pivotably connected to the front legs on each side.   
     
     
         2 . The folding chair according to  claim 1 , wherein the rails each comprise at least two notches, each defining a position at which a connection point to the backrest portion and the seat portion can be detachably locked in the rails. 
     
     
         3 . The folding chair according to  claim 1 , wherein a connection of the seat portion to the front legs is being formed on each side by a connection element, one end of the connection element being pivotably connected to the seat portion and another end being pivotably connected to the respective front leg. 
     
     
         4 . The folding chair according to  claim 3 , wherein the connection element comprises a bolt and a pivot arm, the bolt forming at one end a connection with the front leg and on the other end being pivotably connected to one end of the pivot arm, the other end of the pivot arm forming a connection with the seat portion. 
     
     
         5 . The folding chair according to  claim 4 , wherein the backrest portion and the seat portion each comprise an outer frame, connections each being formed on the outer frames. 
     
     
         6 . The folding chair according to  claim 5 , wherein the bolt is arranged underneath the outer frame of the seat portion, the other end of the pivot arm being pivotably connected to an inward facing side of the outer frame. 
     
     
         7 . The folding chair according to  claim 1 , wherein a connection of the seat portion to the front legs comprises a locking means preventing a pivoting movement. 
     
     
         8 . The folding chair according to  claim 1 , wherein a connection of the back end of the armrests to the backrest portion is being achieved by means of a connection block, which is arranged on a backside of the backrest portion, a side of the connection block being connected to the back end of the armrest forming a pivot connection. 
     
     
         9 . The folding chair according to  claim 1 , wherein the underside of the armrests comprises a plurality of locking positions at which the underside of the armrests can be detachably locked to the top end of the respective pairs of legs. 
     
     
         10 . The folding chair according to  claim 1 , wherein the armrests comprise detachable covers. 
     
     
         11 . The folding chair according to  claim 1 , wherein a distance from, on one side, a connection of the lower end of the backrest portion to the back end of the seat portion to, on the other side, a connection of the seat portion to the front leg is chosen in such a way, that in a folded state of the folding chair the connection of the lower end of the backrest portion to the back end of the seat portion can be arranged at a lower end position of the rail.