公开(公告)号：US20180313143A1

公开(公告)日：2018-11-01

申请号：US15691077

申请日：2017-08-30

Applicant: NIEN MADE ENTERPRISE CO., LTD.

Inventor： CHIH-YAO CHANG ,  WEI-XUE YUAN

IPC: E06B9/322

Abstract: A window covering is disclosed, including a first rail, a second rail, and a shielding structure, wherein the second rail is movable between a high position and a low position through the driving of a cord, whereby the shielding structure can be raised and lowered. The first rail has a lifting mechanism provided therein, wherein the lifting mechanism includes a reeling device and a friction wheel. The reeling device is adapted to reel in or to release the cord, wherein the cord passes around and contacts the friction wheel. The cord provides a lateral pushing force to the friction wheel, pushing the friction wheel against a rubbed member to create friction, whereby to position the second rail accurately.