Patent ID: 6024154
Filing Date: 2000-02-15
Classification: E06B

Abstract:
A lifting mechanism for a venetian blind having at least a pair of concealed pull cords engaged to a plurality of slats, said lifting mechanism comprising;a winding member having at least one cord retrieving and winding member and at least one spring releasing unit;said spring releasing unit being operatively engaged with said cord retrieving and winding member;each of said pair of concealed pull cords having a first end extending through said plurality of slats;said cord retrieving and winding member fastened to a second end of each of said pair of concealed pull cords;said spring releasing unit comprising a spring and having a spring biased position which allows said cord retrieving and winding member to rewind said pair of concealed pull cords after said blind has been pulled down to close;a locating member having a retaining member said cord retrieving winding member to hold said spring releasing unit in said spring biased position to preclude rewinding of said pair of concealed pull cords; andwherein said locating member is adapted to hold said plurality of slats in an open position against a weight of said plurality of slats.