Patent ID: 6560795
Filing Date: 2003-05-13
Classification: A47D,A63B

Abstract:
A light weight supporting board for playyard, pen, cot, and bed, comprising:a supporting pocket comprising a first layer having a tension surface and a second layer overlapped with said first layer to define a receiving cavity between said first layer and said second layer, wherein said supporting pocket provides with at least an edge holder having a U-shaped cross section; a boundary frame defining a central window and having a size and shape adapted to be fittedly received in said receiving cavity so as to mount said first layer covering said central window to form said tension surface; and at least a retaining element affixed and extended along said at least one edge holder of said supporting pocket for securely enclosing said boundary frame in said at least one edge holder, wherein said retaining element comprises a stitching line extended along said at least one edge holder of said supporting pocket by sewing through said first and second layers to define a surrounding tubular chamber for said at least one edge holder to enclose and retain said boundary frame inside said surrounding tubular chamber of said at least one edge holder and enhance said tension surface of said supporting pocket.