主权项 |
1. A mechanical driver comprising:
a lever which is rotatable at a fixed rotation point, a wedge shaped member operatively coupled to and in constant contact with the lever at a point at a distance from the fixed rotation point to deflect the lever about the fixed rotation point, a shape memory alloy operatively coupled to the wedge shaped member to move the wedge shaped member such that the wedge shaped member deflects the lever, wherein the shape memory alloy is held at a predetermined tension in its start position, and a piston drive point located on and in constant contact with the lever, at a distance from the fixed rotation point of the lever. |