公开(公告)号：US20180242797A1

公开(公告)日：2018-08-30

申请号：US15964934

申请日：2018-04-27

申请人： SCA Hygiene Products AB

发明人： Bjorn LARSSON ,  Per MOLLER ,  Lars THOREN ,  Jari HAUKIRAUMA ,  Stig POMMER ,  Joonas JOKITALO

IPC分类号： A47K10/36 ,  A47K10/44 ,  A47K10/38 ,  B65H35/10 ,  A47K10/16 ,  A47K10/42

CPC分类号： A47K10/36 ,  A47K10/16 ,  A47K10/3612 ,  A47K10/3643 ,  A47K10/38 ,  A47K10/426 ,  A47K10/44 ,  A47K2010/3881 ,  B65H35/10

摘要： A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with a plurality of protrusion elements being spaced along the rotational axes and protruding perpendicular from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.