Patent ID: 7841032
Filing Date: 2010-11-30
Classification: A47C,B29C,B29L,B68G

Abstract:
1. A bed mattress including a spring assembly that comprises a plurality of springs arranged along row and column directions over the entire area of the bed mattress, and a helical coil for securely engaging the springs with one another, the bed mattress comprising: a foaming material; and a permeable reinforcing member formed of a single or multi-layered structure provided between the foaming material and an upper surface of the spring assembly and/or between the foaming material and a lower surface of the spring assembly, the permeable reinforcing member being a flat or substantially flat horizontal mesh-type string structure in which a first plurality of parallel strings are arranged across and perpendicularly to a second plurality of parallel strings to form fine holes therebetween, through which the foaming material can pass so that the height of the foaming material passing through the fine holes is maintained evenly wherein the permeable reinforcing member and the upper surface and/or lower surface of the spring assembly are embedded into the foaming material.