Damping device for window covering
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United States of America Patent
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N/A
Issued Date -
Jul 27, 2017
app pub date -
May 19, 2016
filing date -
Jan 22, 2016
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A damping device for a window covering includes a headrail, a covering material, and a driving device. The driving device is located in the headrail to raise and extend the covering material. The damping device is provided in the headrail, and includes a metal member and a magnetic member, wherein at least a magnetic pole of the magnetic member faces the metal member. The metal member is located within a magnetic field of the magnetic member. Either one or both of the metal member and the magnetic member can be driven by the driving device to cause relative movement therebetween. The damping device is able to provide a desired damping effect regardless of changes in temperature or even after prolonged use. The damping device provides a damping effect which slows down the rotation of the metal member and the movement of the covering material.
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