Safety Device for Window Shades
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United States of America Patent
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Issued Date -
Dec 29, 2011
app pub date -
Jun 25, 2010
filing date -
Jun 25, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A safety device for window shades sets on a lift cord system for window shades. The safety device includes a fastener and a sliding sleeve. The fastener includes a sleeve and a first connecting end and a second connecting end respectively defined on two ends of the sleeve. The sleeve at least has one first entrance. The connecting end connects with one end of the lift cord system. The first connecting end has a first groove defining a cavity thereof and a first opening formed on an end portion of the first connecting end and connected with the first groove. A first guiding groove extends from the first entrance to the first opening. The first connecting end is divided along lines from the first entrance, the first guiding groove to the first opening to form two petal-shaped pieces with elastic deformation to expand the first opening.
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