Seat cushion

Abstract

A seat cushion includes a base board, buffering material, filling material and an enclosure portion. The base board is a hard board and has an upper surface. A convex portion is formed on the front part near the central part of the upper surface. A concave portion is formed on either side of the convex portion. The layer of the buffering material and the layer of the filling material may be arranged in various configurations on the base board. As a user sits on the cushion of the present invention, his thighs are on the concave portions and his bottom is on the rear portion of the base board. In addition, the buffering material can effectively buffer the sudden downward force exerted by our body while we sit down on the cushion.

1 . A seat cushion, comprising:
 a base board, having an upper surface, wherein a convex portion is formed on the front part near the central part of the upper surface and a concave part is formed on either side of the convex portion;   a buffering material, which is provided on the upper surface of the base board; and   an enclosure portion, which may enclose the base board provided with the buffering material.   
     
     
         2 . The seat cushion as in  claim 1 , wherein the base board is made of wood, plastic or metal. 
     
     
         3 . The seat cushion as in  claim 1 , wherein an upwardly extending portion is formed in the rear part of the base board. 
     
     
         4 . The seat cushion as in  claim 1 , wherein the buffering material is made of silica gel, soft rubber, soft synthetic thermoplastic elastomer gel or latex or PU elastomer. 
     
     
         5 . The seat cushion as in  claim 1 , wherein the buffering material is provided on the entire area or certain areas of the upper surface of the base board. 
     
     
         6 . A seat cushion, comprising:
 a base board, having an upper surface, wherein a convex portion is formed on the front part near the central part of the upper surface and a concave part is formed on either side of the convex portion, and wherein a buffering material and a filling material are provided on the upper surface of the base board; and   an enclosure portion, which may enclose the base board provided with the buffering material and the filling material.   
     
     
         7 . The seat cushion as in  claim 6 , wherein the base board is made of wood, plastic or metal. 
     
     
         8 . The seat cushion as in  claim 6 , wherein an upwardly extending portion is formed in the rear part of the base board. 
     
     
         9 . The seat cushion as in  claim 6 , wherein the buffering material is provided on the convex portion and the two concave portions and the filling material is provided on the areas not covered by the buffering material. 
     
     
         10 . The seat cushion as in  claim 6 , wherein the buffering material is provided only on the two concave portions and the filling material is provided on the areas not covered by the buffering material and is not provided on the convex portion. 
     
     
         11 . The seat cushion as in  claim 6 , wherein, in manufacturing, a layer of the filling material is first put on the upper surface of the base board and then a layer of the buffering material is put on top of the layer of the filling material. 
     
     
         12 . The seat cushion as in  claim 6 , wherein, in manufacturing, a layer of the filling material is first put on the upper surface of the base board and then a layer of the buffering material is put on top of the layer of the filling material and another layer of the filling material is put on top of the layer of the buffering material.