CORD-LESS SCROLLING DEVICE AND METHOD FOR SCROLLING OPERATION WIRE OF WINDOW CURTAIN
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United States of America Patent
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Issued Date -
Aug 20, 2015
app pub date -
Feb 19, 2014
filing date -
Feb 19, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The operation wire scrolling device includes a resilient member with has a first end and a second end. The scrolling force of the first end is larger than that of the second end. The second end of the resilient member is securely wrapped to the central pin of the scrolling member, and the first end of the resilient member is securely wrapped to the side pin of the scrolling member. When the operation wire is pulled, the second end of the resilient member does not pull the first end of the resilient member so that the position of the curtain is set.
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