Cord-winding assembly of a window blind
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United States of America Patent
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Sep 1, 2015
Grant Date -
Dec 4, 2014
app pub date -
May 28, 2013
filing date -
May 28, 2013
priority date (Note) -
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Abstract
A cord-winding assembly of a window blind includes a first spool and a second spool. The first spool has a first axis extending in an axial direction. A plurality of first grooves is formed on an outer periphery of the first spool. The first grooves are parallel to each other. Each of the plurality of first grooves has a circumferential length different from other first grooves. The second spool has a second axis extending in the axial direction. The first and second axes are parallel to each other. A plurality of second grooves is formed on an outer periphery of the second spool. The second grooves are parallel to each other.
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