Cord winding assembly with fine adjustment and correction and window blind using same

    公开(公告)号:US11505989B1

    公开(公告)日:2022-11-22

    申请号:US17528795

    申请日:2021-11-17

    IPC分类号: E06B9/38 E06B9/262 E06B9/382

    摘要: A window blind includes a headrail, two lift cords, a blind body, a bottom rail, and two cord winding assemblies that are respectively installed on two opposite sides of the long axis of the bottom rail. The other ends of the lift cords are respectively tied to respective adjustment columns of the cord winding assemblies. When the window blind is folded or stretched, unfortunately, when the winding stroke is inconsistent, the blind body is not folded uniformly or skewed, and the adjustment column of the cord winding assembly on one side can be finely adjusted, so that one of the lift cords is gradually wound and covered on the adjustment column, and indirectly drives the bottom rail and the blind body to gradually adjust to substantially parallel to the bottom of the headrail, thereby effectively achieving the effect of fine-tuning and correcting the blind body.