Self-locking and reversible mechanism for deploying the divergin

Details Self-locking and reversible mechanism for deploying the divergin Self-locking and reversible mechanism for deploying the divergin

1992-05-28

1994-02-01

Kashnikow, Andrew

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

With means controlling amount, shape or direction of...

23926511, 60271, F02K 997

Patent

active

052825760

ABSTRACT:
The deployment mechanism comprises three identical operative assemblies mounted on a fixed main frame. Each operative assembly comprises a linear actuator and first and second links disposed in such a manner as to ensure self-locking in a deployed position by causing the axes of the following three hinges to pass to or slightly beyond a dead point where they are in alignment: the hinge between the main frame and a first zone of the first link; the hinge between the upstream end of the second link and a second zone of the first link; and the hinge between the downstream end of the second link and a link support mounted on the deployable portion of the nozzle. The actuator is secured and anchored to a non-deployable portion of the nozzle and it includes a drive member whose free end is hinged to a third zone of the first link, and it is deactivated in both of the final positions, i.e. when the deployable portion is deployed and when it is retracted.

REFERENCES:
patent: 3526365 (1970-09-01), Paine
patent: 4252286 (1981-02-01), Moorehead
patent: 4313567 (1982-02-01), Feight
patent: 4489889 (1984-12-01), Inman
patent: 4676436 (1987-06-01), Willis

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