Safety device for a system transported in a vehicle,...

B - Operations – Transporting – 64 – D

Patent

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Details

B64D 25/04 (2006.01) B60N 2/52 (2006.01) B64D 11/06 (2006.01) F16F 9/504 (2006.01)

Patent

CA 2148852

The invention concerns a safety device for a system transported aboard a vehicle, namely an aircraft, which is attached to the vehicle structure by at least one component with a cylindrical body and telescopic stem. According to the invention, the body and the stem of the telescopic component delimit two fluid chambers that are normally isolated from one another, a communicating passage being provided and normally closed by an associated laminar valve, which is controlled by a means sensitive to acceleration employing a mass moving in the direction of the axis of the telescopic component and a pre-loaded spring associated with this mass. The means is arranged so as to cause the valve to open as soon as the detected acceleration exceeds a set threshold depending on the system to be protected, the modification of the length of the telescopic component thereby maintaining the acceleration of the system below the said threshold.

L'invention concerne un dispositif de sécurité pour un système transporté à bord d'un véhicule, notamment d'un aéronef, qui est relié à la structure du véhicule par au moins un elément à corps cylindrique et à tige télesco- pique. Conformément à l'invention, le corps et la tige de l'élément télescopique délimitent deux chambres de fluide qui sont normalement isolées l'une de l'autre, un passage de communication étant prévu et normalement fermé par une valve de laminage associée, qui est pilotée par un moyen sensible à l'accélération utilisant une masse mobile dans la direction de l'axe de l'élément télescopique et un ressort taré associé à cette masse. Le moyen est agencé pour déclencher l'ouverture de la valve dès que l'accélé- ration détectée dépasse un seuil prédéterminé en fonction du système à protéger, la modification de la longueur de l'élément télescopique maintenant ainsi l'accélération du système en-dessous dudit seuil.

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