Control device of window covering system
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United States of America Patent
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Issued Date -
Jul 27, 2017
app pub date -
Jan 16, 2017
filing date -
Jan 22, 2016
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A control device reduces an expansion speed of a covering material of a window covering system. The window covering system comprises the control device, the covering material and a weight member attached below the covering material to provide a weight force to the covering material. The control device comprises a driving module, a lifting module comprising a winding device configured to operate with the drive member and the covering material simultaneously, a damping module configured to operate with the winding device in only one direction for providing a damping force to the winding device selectively; wherein the damping force is provided to the winding device for reducing the expansion speed of the covering material when the winding device is rotated in the first direction; and wherein no damping force is provided to the winding device when the winding device is rotated in a second direction opposite to the first direction.
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