Extendible structures

Details Extendible structures Extendible structures

1985-01-04

1986-07-15

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Tilts relative to base

52632, 52645, 52646, 5 99R, E04H 1218, E04H 1234

Patent

active

045998329

ABSTRACT:
An extendible structure that can be collapsed to a shorter length and extended to a longer length. A pair of station members are interconnected by at least three longeron members. Each longeron member has two longeron elements that are pivoted together so they can fold toward one another or aligned to form a column. Each element is pivoted to a respective station member. Stays rigidify the structure when extended, and are opposed by buckling springs (Euler columns) that exert an outward resultant force on each longeron member at its folding point.

REFERENCES:
patent: 643822 (1900-02-01), Isham
patent: 651773 (1900-06-01), Smith
patent: 3593481 (1971-07-01), Mikulin
patent: 3751863 (1973-08-01), Lyons
patent: 4480415 (1984-11-01), Truss

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