Stop device with shape memory actuator

摘要

A stop device with a shape memory actuator includes two stop elements (5) sliding within a fixed support structure (1) and usually hold in their mutual distant position by cam means (7) pushed through spring means (8). A shape memory actuator (12) is started through an electric current passage for causing the displacement of the cam means (7) in a position wherein they permit the backward movement of the two stop elements (5) towards a mutual close position.