A shape memory actuator includes a supporting body, a driven element pivotably mounted on the supporting body and in permanent contact with a driving element whose movement is determined by a SMA actuating member and by at least one resilient return member acting in opposition to the SMA actuating member. The driven element is able to take two stable positions under the action of a bistable moving system connecting the driving element to the driven element such that each toggling between the two stable positions is due to an activation of the SMA actuating member, the latter being arranged together with the bistable moving system. The resilient return member, the driving element and the driven element on a same side of the supporting body are in a substantially co-planar arrangement.
Shape memory actuator with bistable driven element
2017-04-25
Patent
Elektronische Ressource
Englisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F03G Feder-, Gewichts-, Trägheits- oder ähnliche Kraftmaschinen , SPRING, WEIGHT, INERTIA, OR LIKE MOTORS |