DROP DOWN WINDOW BLIND WITH UNOBSTRUCTED WINDOW VIEW

摘要

A drop down window blind includes a first member having opposed ends and asecond member having opposed ends. A foldable blind substrate is connected tothe firstmember and the second member. The blind substrate unfolds during relativedivergingmovement of the first member and the second member and folds during relativeconvergingmovement of the first member and the second member. A first member cordextends from adrive unit through each of the opposed ends of the first member. Rotation ofthe drive unit ina first rotational direction decreases a length of the first member cord tomove the firstmember in a first direction and rotation of the drive unit in a secondrotational directionincreases a length of the first member cord to move the first member in asecond direction.