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1.发明授权WINDING CORES FOR MATERIAL ROLLS HAVING HIGH ROLL STRAIN ENERGY, AND METHOD FOR MAKING SAME 有权卷芯材料全为生产高ROLLENFORMÄNDERUNGSSENERGIE及加工辊
公开(公告)号：EP2244964B1
公开(公告)日：2012-06-20
申请号：EP09709069.0
申请日：2009-01-14
发明人： RHODES, David, E. , AUTEN, John, F. , WANG, Yiming , VAN DE CAMP, Wim , GERHARDT, Terry , RENCK, Lawrence, E.
IPC分类号： B65H75/10
CPC分类号： B65H75/10 , B65H2701/31 , B65H2701/5112
摘要： Winding cores for elastically stretched or shrinkable materials are designed to significantly reduce the amount of roll strain energy developed during winding. This is accomplished by building into the core an energy-absorbing zone (220) that can be collapsed by a substantial amount and in a relatively controlled fashion over a substantial period of time under the influence of a continued radially inward pressure exerted by the roll of wound material. The energy-absorbing zone is formed by one or more collapsible layers (100) having repeated atomic regions (105) projecting out of a plane of the sheet and each defining a plurality of normal vectors (108a, 108b, 108c, 108d) in different sub-regions of the atomic region, wherein the normal vectors, when projected onto the two-dimensional plane of the sheet, are in a plurality of different directions in the plane.
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2.发明公开WINDING CORES FOR MATERIAL ROLLS HAVING HIGH ROLL STRAIN ENERGY, AND METHOD FOR MAKING SAME 有权卷芯材料全为生产高ROLLENFORMÄNDERUNGSSENERGIE及加工辊
公开(公告)号：EP2244964A1
公开(公告)日：2010-11-03
申请号：EP09709069.0
申请日：2009-01-14
发明人： RHODES, David, E. , AUTEN, John, F. , WANG, Yiming , VAN DE CAMP, Wim , GERHARDT, Terry , RENCK, Lawrence, E.
CPC分类号： B65H75/10 , B65H2701/31 , B65H2701/5112
摘要： Winding cores for elastically stretched or shrinkable materials are designed to significantly reduce the amount of roll strain energy developed during winding. This is accomplished by building into the core an energy-absorbing zone (220) that can be collapsed by a substantial amount and in a relatively controlled fashion over a substantial period of time under the influence of a continued radially inward pressure exerted by the roll of wound material. The energy-absorbing zone is formed by one or more collapsible layers (100) having repeated atomic regions (105) projecting out of a plane of the sheet and each defining a plurality of normal vectors (108a, 108b, 108c, 108d) in different sub-regions of the atomic region, wherein the normal vectors, when projected onto the two-dimensional plane of the sheet, are in a plurality of different directions in the plane.
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