SEGMENTED STRUCTURE, IN PARTICULAR FOR A SATELLITE ANTENNA REFLECTOR, PROVIDED WITH AT LEAST ONE DEPLOYMENT DEVICE WITH A PARALLELOGRAM

摘要

A segmented structure includes at least two panels, one panel referred to as a main panel and at least one panel referred to as a secondary panel. The structure further includes at least one unfurling device configured to bring a secondary panel into a storage position or into an unfurled position. The unfurling device has at least one strip fixed to the secondary panel and connected to the main panel. The strip is elastically preloaded into the storage position thereof so as to unfurl automatically and autonomously when relative movement between the secondary panel and the main panel becomes possible, so as to move the secondary panel.

主权项

1. A segmented structure, in particular for a satellite antenna reflector, said segmented structure comprising:
at least two panels, a first so-called main panel comprising a front face and a rear face, and a second so-called secondary panel also comprising a front face and a rear face; and at least one deployment device connected to the rear faces respectively of said main and secondary panels and suitable for bringing said secondary panel into one or other of the following two positions, relative to said main panel:
a storage position, in which said secondary panel is at least partly superimposed on said main panel on the rear face of said main panel, the front face of said secondary panel being directed in the same direction as the front face of said main panel; anda deployed position, in which said secondary panel is positioned towards the outside of the main panel, alongside and against said main panel so as to form a continuous assembly at least on the front faces thereof, wherein said deployment device comprises:
a system with a parallelogram comprising at least two linking arms arranged substantially parallel, so as to form a parallelogram, each of said linking arms being linked by a first of the ends thereof, via a first hinge comprising at least a first spring, to the rear face of said secondary panel, and by a second of the ends thereof, via a second hinge comprising at least a second spring, to the rear face of said main panel, said first and second springs being configured, after prestressing, to move said secondary panel with respect to said main panel in a circular translation movement from the storage position to an intermediate position; andauxiliary guiding means configured so as to implement end guidance from said intermediate position to the deployed position.