公开(公告)号：US20210059794A1

公开(公告)日：2021-03-04

申请号：US17096095

申请日：2020-11-12

申请人： Fu-Long Chang

发明人： Ping-Liang Ko ,  Tse-Ang Lee ,  Jin-Gen Wu ,  Kang-Hsien Fan ,  Chien-Chiang Wu ,  Hsin-Chih Lai ,  Fu-Long Chang

IPC分类号： A61C9/00 ,  B29C53/56 ,  B29C53/04 ,  B29C63/24

摘要： A method for manufacturing a rolled retraction cord is provided. The method comprises the steps of: (A) preparing the sheet, the sheet comprising a first side edge and a second side edge opposite to each other; (B) placing the sheet on a first surface of a first forming member; (C) contacting the first side edge of the sheet with a second surface of a second forming member, the first side edge of the sheet sandwiched between the first surface of the first forming member and the second surface of the second forming member; and (D) applying a force via the first surface or the second surface to the sheet, and rolling the sheet from the first side edge to the second side edge to obtain the retraction cord. With this method, a rolled retraction cord with a smooth surface and enhanced ductility is capable of being provided.

公开(公告)号：US20180318052A1

公开(公告)日：2018-11-08

申请号：US15950558

申请日：2018-04-11

申请人： Fu-Long Chang

发明人： Fu-Long Chang ,  Jin-Gen Wu ,  Kang-Hsien Fan ,  Tse-Ang Lee ,  Ping-Liang Ko ,  Hsin-Chih Lai ,  Chien-Chiang Wu

IPC分类号： A61C9/00 ,  B29C53/56 ,  B29C53/04

CPC分类号： A61C9/0033 ,  B29C53/04 ,  B29C53/566 ,  B29K2027/18 ,  B29K2105/256 ,  B29L2031/753

摘要： Provided is a rolled retraction cord, which has flexibility and is made of a sheet rolled into a non-firm multilayer strip. The sheet has a first side edge and a second side edge, the first side edge and the second side edge are opposite and parallel to each other, and the rolled retraction cord is formed by rolling the first side edge of the sheet toward the second side edge of the sheet. Further provided is a method for manufacturing the rolled retraction cord.