Support structure for solar collector

Claim 1

Support structure for a solar collector, comprising (a) two sets of bars linked by assembly nodes and forming two superposed triangulated lattices, including (i) an inner lattice (1) in the shape of a concave dish centered on a sighting axis (xx') and developing, around a central node (10) located on said sighting axis, from six inner nodes (A 1 . . . A 6 ) forming an inner hexagon (H 1 ); and (ii) an outer lattice (2) for stiffening said inner lattice (1), located outside the latter and developing from six nodes (B 1 . . . B 6 ) forming an outer hexagon (H 2 ), each node of said outer lattice being connected to a corresponding node (A 1 . . . A 6 ) of said inner lattice by a spacer bar (6) forming a strut, and located in a plane passing through said sighting axis (xx'); and (b) an assembly component comprising (i) a central column (3) extending along said sighting axis (xx') and having one end fixed to said central node (10) of said inner lattice (1); and (ii) an enlarged base forming a central node (20) of said outer lattice (2) and constituted by three arms (24, 25, 26) fixed to the other end of said central column (3) and extending perpendicularly to said sighting axis (xx') in three radial half planes (P, Q, R) forming dihedral angles of 120° and passing respectively through a first three nodes (A 1 , A 3 , A 5 ) of said inner hexagon (H 1 ) and a first three nodes (B 1 , B 3 , B 5 ) of said outer hexagon (H 2 ); (iii) the three remaining nodes (A 2 , A 4 , A 6 ) of said inner hexagon (H 1 ) and the three remaining nodes (B 2 , B 4 , B 6 ) of said outer hexagon (H 2 ) being located in bisecting half planes (P', Q', R') of said dihedral angles; (c) each of said arms (24, 25, 26) having at its end three anchoring faces (27, 28, 29), including (i) a central face for anchoring two oblique bars respectively connected to said nodes (A 1 and B 1 , A 2 B 2 , A 3 and B 3 ) of said inner and outer lattices (1, 2), located in the same radial half plane of said arm; and (ii) two lateral faces for anchoring two bracing bars respectively connected to the other nodes of said inner and outer lattices (1, 2) respectively located in said bisecting half planes extending on both sides of the corresponding arm.