Upright shade

Abstract

The upright shade consists of an upright tube (1) and a shade structure made up of roof struts (7) which are joined to a mobile end crown (4) disposed at the top end of a push tube (3). Push tube (3) can be longitudinally displaced inside upright tube (1). Supporting struts (6) are provided, which are connected at their top ends to roof struts (7) in order to provide support, and at their bottom ends to a runner crown (5) which can be displaced along upright tube (1). Auxiliary struts (8) are also provided to coordinate the opening and closing movements of the roof struts (7) and supporting struts (6). Said auxiliary struts are articulated, and are arranged between a stationary crown (2) disposed at the top end of the upright tube, and the supporting struts (6). A steel or pneumatic spring is fitted inside upright tube (1) for partially automatic opening and closing of the shade. This allows end crown (4) to be moved in a partially automatic manner—i.e. with little expenditure of effort, simply by displacing one roof strut (7)—into its lowest position, thereby opening the shade, or into its uppermost position, thereby closing the shade.

Dependencies are inferred from the claim text.