Patent ID: 6814128
Filing Date: 2004-11-09
Classification: E06B

Abstract:
A vertical retractable blind for installation to a window for regulating light, comprising:a headrail transversely fastenable to a top side of a window; a lifting rail extended in transverse direction below said headrail and vertically movable relative to said headrail; two positioning cords, said positioning cords each having a first end connected to said headrail and a second end respectively extended across said lifting rail and fixedly secured to a respective fixed point outside said lifting rail to provide a tension force to said lifting rail; a blind body connected between said headrail and said lifting rail and vertically extended out/received subject to vertical movement of said lifting rail, said main blind body having a plurality of transverse pleats arranged in parallel; two vertical guide rails vertically arrangeable in parallel at two opposite lateral sides of a window; the second ends of said positioning cords are respectively fixedly fastened to said vertical guide rails; said vertical guide rails each have a longitudinal groove facing each other; and the second ends of said positioning cords are respectively fixedly fastened to a bottom end of the longitudinal groove of each of said vertical guide rails.