发明名称 Cord winding device for window covering
摘要 A cord winding device for a window covering includes a casing, a reel rotatably mounted on the casing, a torsion spring biased between the casing and the reel, a limit ring secured on the casing and abutting the reel to limit the reel between the casing and the limit ring, and a pull cord attached a bottom of the casing. Thus, the lift cord of the window covering is wound around and stored in the reel of the cord winding device so that the lift cord is rolled up to a higher position to prevent the children from being tangled with the lift cord so as to protect the safety of the children.
申请公布号 US8366033(B2) 申请公布日期 2013.02.05
申请号 US20100779292 申请日期 2010.05.13
申请人 DER JAAN INDUSTRY CO., LTD.;CHANG CHIH-KUANG 发明人 CHANG CHIH-KUANG
分类号 B65H75/48 主分类号 B65H75/48
代理机构 代理人
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