Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Tilts relative to base
Patent
1985-04-10
1986-03-11
Bell, J. Karl
Static structures (e.g., buildings)
Mechanism operated relatively movable shaft assembly
Tilts relative to base
52646, E04H 1210, E04H 1218
Patent
active
045745358
ABSTRACT:
A mast-type, three-dimensional framework structure of rectangular cross sion with four diagonally-braced frames which form the sides of the framework structure and all of which are manufactured from tubes and tubular joints made from fibre-reinforced plastics. The diagonally-braced frames are so interconnected by means of hinged connections on their longitudinal members that they can be folded flat in such a way that two adjacent diagonally-braced frames lie in each case on top of the two opposite diagonally-braced frames. Between the longitudinal members of two opposite corners of the framework structure, fixed-length cables are fitted which, when the structure is unfolded, form a stay in one of the diagonals. Between the outer opposite corners, which are on the outside when the structure is folded, there are low-friction cable deflectors for a tensioning cable. The structure is unfolded by means of the tensioning cable and at the same time this forms a stay in the second diagonal of the unfolded framework structure.
REFERENCES:
patent: 3011586 (1961-12-01), Harvey
patent: 3486279 (1969-12-01), Webb
patent: 3564789 (1971-02-01), Vyvyan et al.
patent: 3771274 (1973-11-01), Vaughan
patent: 4334391 (1982-06-01), Hedgepeth et al.
Bell J. Karl
Deutsche Forschungs -und Versuchsanstalt fur Luft -und Raumfahrt
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