Motion systems providing three or four degrees of freedom

Details Motion systems providing three or four degrees of freedom Motion systems providing three or four degrees of freedom

1980-01-30

1982-08-10

Grieb, William H.

Education and demonstration

Vehicle operator instruction or testing

Flight vehicle

G09B 908

Patent

active

043436102

ABSTRACT:
A motion system is provided by a platform generally parallel to a base and connected thereto by a column and powered and controlled extensible members, at least three of which are connected between distributed points around the column. In a three degree of freedom device, the column is conical, rigidly supported at its base with a universal joint at its top. The points of attachment define triangles in the base and in the platform surrounding the column with one extensible member connected between each.
In the four degree of freedom version, the column is modified by making it effectively a column which is pivoted or guided at the base or contains an extensible member, preferably retains its triangular shape and its universal joint connection to the platform at its apex. For stability four powered and controlled extensible members are provided between points in the base and platform distributed around the column, a preferred pattern of arrangement being a square with the column at the center.

REFERENCES:
patent: Re27051 (1971-02-01), Cappel
patent: 2358016 (1944-09-01), Link et al.
patent: 3295224 (1967-01-01), Cappel
patent: 3451145 (1969-06-01), Holt et al.
patent: 3451146 (1969-06-01), Pancoe
patent: 3577659 (1971-05-01), Kail

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