Covering structure for seating or the like

Claim 1

Covering structure resisting laceration, especially for seating or the like, comprising: (a) a covering layer of a dense plastic material, relatively thick, presenting little elasticity in its plane but good flexibility; (b) a network formed by a continuous layer of spiral metallic springs whose axes are parallel to the covering layer of dense plastic material, and whose spirals are intertwined with each other so as to obtain, seen in plane view, a structure in the form of a meshed checkerboard, the spirals of said springs on one side being substantially flush against the lower face of the covering layer; and, (c) a foamed plastic material layer with a thickness less than the diameter of the spiral metallic springs layer, said foamed plastic material layer adhering on one side to a lower face of the dense plastic material layer with the spiral metallic springs layer being partially embedded in said foamed plastic material layer.