Control assembly for folding/unfolding and adjusting an inclination angle of slats of a universal venetian blind
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United States of America Patent
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Nov 10, 2015
Grant Date -
Nov 5, 2015
app pub date -
Apr 30, 2014
filing date -
Apr 30, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A control assembly includes a control box mounted to a rail on a top of a Venetian blind. A longitudinal shaft is mounted in a box body of the control box and is rotatable along a longitudinal axis. An actuation string is wound around a friction wheel on the longitudinal shaft and can be operated to adjust an inclination angle of slats of the Venetian blind. A transverse shaft is mounted in the box body and extends perpendicularly to the longitudinal shaft. A direction-changing gear unit is mounted between the longitudinal shaft and the transverse shaft. The transverse shaft includes two string winding grooves each having increasing depths from two sides thereof towards a center thereof. The box body includes a bottom having a central string hole between two side string holes. The central string hole is divided by a transverse support and a longitudinal support.
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