Control stick adapted for use in a fly-by-wire flight...

Details Control stick adapted for use in a fly-by-wire flight... Control stick adapted for use in a fly-by-wire flight...

B - Operations, Transporting

64

C

B64C 13/04 (2006.01) B64C 13/12 (2006.01) B64C 13/50 (2006.01)

Patent

CA 2669919

This invention provides an improvement in a control stick (e.g., joystick, side-stick, etc.) (20) adapted to control the movement of an object (e.g., an airfoil surface). The improvement includes: a support (21); an intermediately-pivoted upper member (23) mounted on the support, the upper member having an upper portion (24), and lower portion (25); an intermediate member (26) having an upper portion pivotally connected to the upper member lower portion, and having a lower portion; and a lower member (29) having a lower portion pivotally mounted on the support, and having an upper portion; and wherein the intermediate member lower portion is movably mounted on the lower member upper portion such that pivotal movement of the upper member upper portion relative to the support will produce pivotal movement of the intermediate and lower members relative to the support; and a resilient member (31) arranged to bias the direction of relative movement between the intermediate and lower members. The various pivotal connections may be provided by gimbals such that the various members are mounted for compound pivotal movement about two mutually-perpendicular axes.

L'invention concerne une amélioration d'un levier de commande (20) (par exemple un joystick, un manche latéral, etc.) adapté pour commander le déplacement d'un objet (par exemple une surface aérodynamique). L'amélioration comprend : un support (21) ; un élément supérieur à pivotement immédiat (23) monté sur le support, l'élément supérieur ayant une partie supérieure (24), et un partie inférieure (25) ; un élément intermédiaire (26) ayant une partie supérieure reliée de manière pivotante à la partie inférieure de l'élément supérieur, et ayant une partie inférieure ; et un élément inférieur (29) ayant une partie inférieure montée de manière pivotante sur le support, et ayant une partie supérieure ; et dans lequel la partie inférieure de l'élément intermédiaire est montée de manière mobile sur la partie supérieure de l'élément inférieur de telle sorte qu'un mouvement de pivotement de la partie supérieure de l'élément supérieur par rapport au support va produire un mouvement pivotant des éléments intermédiaire et inférieur par rapport au support ; et un élément souple (31) agencé pour contraindre la direction de déplacement relative entre les éléments intermédiaire et inférieur. Les diverses liaisons pivotantes peuvent être fournies par des cardans de sorte que les divers éléments soient montés pour avoir un mouvement pivotant composé autour de deux axes mutuellement perpendiculaires.

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