Winding mechanism of blind

Details Winding mechanism of blind Winding mechanism of blind

E - Fixed Constructions

06

B

E06B 9/322 (2006.01) E06B 9/262 (2006.01)

Patent

CA 2568487

A winding mechanism mounts at head rail of blind and includes lines each wrapped around a bottom stiffener strip and the head rail, a cord wound around cord reel and having at least one loop wrapped around a bight section of the line, a first drum coupled to the cord reel by gear, a second drum, and an S-shaped tape spring interconnected the first and second drums, the spring adapted to exert a force to support the drapery material. In a downward pulling of the stiffener strip the cord reel rotates to release each line and the cord with one worm section of the spring being further wound and the other worm section thereof being loosened for reaching a balance with the blind. An upward pulling of the same has an opposite effect. The drapery material is able to stay at any position in response to stopping the cord reel.

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