Supporting structure for a chair

Abstract

A supporting structure for a chair, the supporting structure is a seat, a back support or a headrest. A nylon mesh is fixed on the annular upper surface of an inwardly projecting flange of the frame, and then the plastic-injection-molded engaging layer is integrally formed on the exterior surface of the frame, enabling the mesh to be firmly fixed on the frame. The elasticity of the mesh provides a comfortable and adequate support for the user's buttocks, back and head, providing comfortable seating and preventing muscle soreness. Further, the heat caused by the user's body can be vented off via the apertures of the mesh, so that the user will feel cool when sitting on or leaning against the supporting structure.

1 . A supporting structure for a chair comprising:
 a frame, forming an outer periphery of said supporting structure, having an inwardly projecting flange with an annular upper surface;   a mesh fixed at an outer periphery thereof to said annular upper surface of said flange, a plurality of apertures being formed in the mesh; and   an engaging layer, integrally formed on the mesh-covered upper annular surface and on an exterior surface of the frame, thereby firmly fixing the mesh to the frame.   
   
   
       2 . The supporting structure for a chair as claimed in  claim 1 , wherein the supporting structure is a seat. 
   
   
       3 . The supporting structure for a chair as claimed in  claim 1 , wherein the supporting structure is a back support. 
   
   
       4 . The supporting structure for a chair as claimed in  claim 1 , wherein the supporting structure is a headrest. 
   
   
       5 . The supporting structure for a chair as claimed in  claim 1 , wherein the mesh is made of nylon. 
   
   
       6 . The supporting structure for a chair as claimed in  claim 1 , wherein said engaging layer is an injection-molded plastic layer covering the mesh-covered upper annular surface and the exterior surface of the frame, thereby firmly fixing the mesh to the frame.