Patent ID: 9145732
Filing Date: 2015-09-29
Classification: E04B,E04F,E06B

Abstract:
1. A swinging blade covering structure, comprising: a plurality of blades, each blade having a longitudinal axis and blade end portions at opposite ends of the longitudinal axis; an extensible link system including a plurality of X-shaped links, the blade end portions coupled to the extensible link system using the rod element supporting the rotary pivot point so as to arrange the plurality of blades in parallel with one another and to allow each of the plurality of blades to rotate about the longitudinal axis; the blade end portions including a plug element comprised of an inner part and an outer part, the extendible link system providing for a transition between a closed position in which the plurality of blades are fully extended and an open position in which the plurality of blades are fully retracted, the transition between the closed position and the open position requiring a ninety degree rotation of each of the plurality of blades about the longitudinal axis and a subsequent translation of the plurality of the blades in a direction perpendicular to the longitudinal axis.