公开(公告)号：US11814198B2

公开(公告)日：2023-11-14

申请号：US17319244

申请日：2021-05-13

申请人： PACKWAY INC.

发明人： Chien-Fa Lai

IPC分类号： B65B13/22 ,  B65B13/18 ,  B65B13/32

CPC分类号： B65B13/22 ,  B65B13/183 ,  B65B13/325

摘要： A relaxation device of a cardboard strapping machine includes a connector being movably extended into a top holder. When the connector retreats from a connective channel in the top holder, a middle pressure lever descends to loosen the overlapping straps, so that the overlapping strap is not pulled by the retracted connector to cause misalignment, the adhesion area is complete, and its adhesion strength is good. In contrast, a cardboard pile cannot be fastened by the strap, which is deformed by a drag force when a counter-pressure plate is pulled back, through a traditional strapping machine for bundling cardboards. Furthermore, another forcibly pull-off implementation will weaken the connection strength at an overlapping portion of a strap head and a strap tail of the strap.

公开(公告)号：US20210394940A1

公开(公告)日：2021-12-23

申请号：US17319244

申请日：2021-05-13

申请人： PACKWAY INC.

发明人： Chien-Fa Lai

IPC分类号： B65B13/22 ,  B65B13/32 ,  B65B13/18

摘要： A relaxation device of a cardboard strapping machine includes a connector being movably extended into a top holder. When the connector retreats from a connective channel in the top holder, a middle pressure lever descends to loosen the overlapping straps, so that the overlapping strap is not pulled by the retracted connector to cause misalignment, the adhesion area is complete, and its adhesion strength is good. In contrast, a cardboard pile cannot be fastened by the strap, which is deformed by a drag force when a counter-pressure plate is pulled back, through a traditional strapping machine for bundling cardboards. Furthermore, another forcibly pull-off implementation will weaken the connection strength at an overlapping portion of a strap head and a strap tail of the strap.