Single actuation push-button driven by a shape memory material

Details Single actuation push-button driven by a shape memory material Single actuation push-button driven by a shape memory material

F - Mech Eng,Light,Heat,Weapons

03

G

F03G 7/06 (2006.01) B64G 1/64 (2006.01)

Patent

CA 2196320

In order to disassemble and separate two parts, for example, on a spacecraft such as a satellite or a probe, the invention provides a single actuation push- button (10), driven by a unit (36) and disposed in a housing (12) between a wall thereof (18) and a piston (24), and having a heater (38) associated therewith. A positioning system (20, 26, 32), responsive to a displacement of the part (24) caused by the extension of unit (36), prevents the push-button (10) from being mounted once it has been actuated.

Pour commander notamment le débridage et le décollement de deux pièces, sur un engin spatial tel qu'un satellite ou une sonde, il est proposé un poussoir (10) à actionnement unique, motorisé par un organe (36) et placé dans un boîtier (12), entre une paroi (18) de ce dernier et un piston (24). Il est associé à un réchauffeur (38). Un système de détrompage (20, 26, 32), sensible à un déplacement de la pièce (24) provoqué par un allongement de l'organe (36), empêche le montage du poussoir (10) lorsqu'il a déjà été actionné.

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