Mesh back of a chair which is easily attachable and detachable

Conveniently removable mesh backing chair of the present invention, the rear upper portion is formed with the upper engaging portion 11, lower portion of mesh to the inside of the backing frame 14 and the lower coupling part backing frame 14 which is 17, it is formed an upper portion of the top and bottom a pair of vertical frames (31, 32) and the longitudinal frame portions 31 and 32 of the pair of built in; the mesh portion 13 is in mesh backing which is formed integrally (10) formed connection that the upper connection frame 33 and the pair of vertical frames (31, 32) of connecting the lower and the back frame 30 including the lower fixing frame 35, which; includes, the back frame (30 ) vertical frame (31, 32) on top rear of the upper engaging portion 11 has a lower fixed frame 35 of the back frame 30 is the mesh backing (10, coupled are formed on a mesh backing 10 of the ) lower engaging portion 17 of the lower portion of the coupling part (17) is the lower fixed frame 35 so as to be positioned on the front It characterized in that the bent coupling piece.