Deployable sun screen for automobile windows

Abstract

A sun screen for selectively covering automobile windows movable between a stowed position exposing a window and a deployed position covering at least part of a window. The sun screen can be sized to fit a variety of window shapes, including trapezoidal or other non-rectangular shapes. The translucent screen is rolled on rollers mounted above the window. The screen includes a central rectangular portion sized to conform to the largest rectangle making up the window. Individual angled screens, having band-like shapes, are mounted as needed at the ends of the central portion on angled rollers. The lower edge of the central portion is secured to a transverse rod or tube with the lower edges of the angled screens secured to tubes in a telescoping relationship to the transverse rod ends. The outer ends of the tubes are guided in a track for movement in a generally vertical direction along the window edges. A pulley system driven by an electrical motor causes the rod and tube assembly to move vertically along the tracks to the desired deployment. The screen system may be returned to the stowed position by rotating the rollers, either under control of the electrical motor or by means of a torsion spring in the roller. Thus, the screen when fully deployed covers the entire window, leaving no distracting 'hot spots' of light entering along the edges or at corners.