Abstract: A sunshade includes a flexible sheet with a hub generally positioned at its center. A plurality of radial arms are hinged to the hub about parallel axes which are perpendicular to the sheet. The outer ends of the arms are secured to the corners of the sheet. The sunshade is folded by pivoting the arms toward each other along a two-dimensional plane, so that it may be folded in the tight confines of an automobile's interior. In several embodiments, one or more arms are collapsible arms that facilitate the folding of the sheet. The collapsible arms are comprised of two sections connected by a bi-stable hinge, or comprised of spring-loaded telescoping sections. In another embodiment, the flexible sheet is of a wide rectangular shape supported by radial arms hinged to separate hubs positioned on left and right sections of the sheet. In yet another embodiment, the arms are all rigid, and the sheet includes a slit extending from its center to an edge.

Abstract: A collapsible sunshade includes a sheet with a central horizontal fold line dividing it into upper and lower portions, and vertical fold lines forming accordion pleats. In a first embodiment, the upper portion includes a large cutout spanned by a flexible material. In a second embodiment, the center of the upper portion includes an inverted T-shaped cut that follows the fold lines. The cutout and the T-shaped cut further divide the upper portion into left and right portions. The sunshade is compacted by collapsing the sheet inwardly horizontally, and folding the left and right portions outwardly and downwardly. The flexible material of the first embodiment and the T-shaped cut of the second embodiment enable the left and right upper portions to be folded against the lower portion. A pair of wings extending from the left and right portions serve as handles to facilitate opening, installation, removal, and folding of the sunshade.