THREE DIMENSIONAL NETTED STRUCTURE

摘要

A three-dimensional netted structure having an upper surface, a lower surface, two side surfaces a left end surface, and a right end surface, including at least a plurality of filaments helically and randomly entangled and thermally bonded together, wherein the filaments are formed out of a thermoplastic resin by extrusion molding followed by cooling with a liquid; and the netted structure is four-surface molded, the upper surface, the lower surface and the two side surfaces being molded. An apparatus and a method for manufacturing the three-dimensional netted structure.

主权项

1. An apparatus for manufacturing a three-dimensional netted structure, the three-dimensional netted structure comprising a plurality of filaments of resin, the filaments being helically and randomly entangled and thermally bonded together, the apparatus comprising:
an extrusion molding machine comprising a plurality of dies each having a mouthpiece with a plurality of holes; a pair of endless conveyors, each of said pair of endless conveyors comprising a plurality of endless members; and a tank adapted to submerge or partly submerge said pair of endless conveyors;wherein:
said plurality of endless members is fixed to a plurality of endless chains and said plurality of endless members are separated from one another by a predetermined width of clearance.