An improved support post for cushioning and supporting large products is provided. The post is made from a sheet (10, 50 or 60) that is convolutely wound around a mandrel and shaped into a desired shape. The improvement comprises making the sheet from multiple thicknesses of paper so that, upon winding the sheet into a tube, the middle layer of the tube is thicker than the outer layers. The post has a higher axial compression strength than a conventional post, but the same amount (weight) of material.
申请公布号
WO2005019091(A3)
申请公布日期
2006.01.26
申请号
WO2004US25680
申请日期
2004.08.09
申请人
SONOCO DEVELOPMENT, INC.;NIU, XIAOKAI;VAN DE CAMP, JOHANNES;ZOLD, MICHAEL;QIU, YANPING
发明人
NIU, XIAOKAI;VAN DE CAMP, JOHANNES;ZOLD, MICHAEL;QIU, YANPING