Module for expandable truss structure and expandable truss struc

Details Module for expandable truss structure and expandable truss struc Module for expandable truss structure and expandable truss struc

1988-03-08

1991-05-14

Raduazo, Henry E.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Components adjustably or collapsibly connected

52645, E04H 1218

Patent

active

050144847

ABSTRACT:
A module for an expandable truss structure which defines one unit of the structure and which is capable of being transformed from a folded state to a deployed state is disclosed. A wire is tensely stretched between each pair of adjacent vertices of each tetrahedral module when the truss structure is deployed to thereby eliminate looseness from the joints of the constituent members. Accordingly, it is possible to obtain high rigidity with ease. Further, synchronous beams for effecting synchronous deployment and a compression spring for supplying energy for deployment are incorporated to allow reliable deployment to be achieved and also to enable the truss structure to be deployed without the aid of any external force. Also disclosed is an expandable truss structure composed of a plurality of interconnected expandable truss structure modules of the type described above.

REFERENCES:
patent: 319225 (1885-06-01), Gilardini
patent: 570857 (1893-11-01), Plack
patent: 808863 (1906-01-01), McGuire
patent: 2534710 (1950-12-01), Golian
patent: 4475323 (1984-10-01), Schwartzberg
patent: 4532742 (1985-08-01), Miura
patent: 4534374 (1985-08-01), Day
patent: 4667451 (1987-05-01), Onoda
John A. Fager & Ray Garriott, "Large Aperture Expandable Truss Microwave Antenna", 1969.
W. Schneider, "Space Station Structures", 1984.

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