Roller blinds controller structure
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United States of America Patent
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Apr 7, 2015
Grant Date -
Feb 13, 2014
app pub date -
May 3, 2013
filing date -
Aug 8, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An improvement of roller blinds controller is provided, it mainly comprises a cylindrical rod passing through a side cover and fixing therewith; a bead chain sprocket and a number of torsion springs fitted on the cylindrical rod, and an outer sleeve cover fitted on the outside, wherein: the cylindrical rod has a ridge portion protruded from the circumferential surface thereof, while the side cover has a has a central aperture with a annular edge portion, the cylindrical rod can be fixed with the side cover by the snap-fitting of the annular edge portion between the flange portion and the ridge portion.
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