Patent ID: 6499325
Filing Date: 2002-12-31
Classification: E05B,H01F,Y10T

Abstract:
An electromechanical actuator comprising:a body element, and an elongated interaction element which is rotatable relative to the body element about a rotational axis between a first rotational position, in which the interaction element is displaceable relative to the body element along the rotational axis from a first longitudinal position to a second longitudinal position under the influence of an external force, and a second rotational position in which displacement of the interaction element relative to the body element from the first longitudinal position towards the second longitudinal position is positively prevented, and wherein one of said elements includes an electromagnetic means and the other of said elements includes magnetic material and said elements are arranged with respect to each other so that magnetic interaction of the magnetic material and the electromagnetic means creates a torque urging the interaction element to rotate from the first rotational position to the second rotational position when the electromagnetic means is energized in a first polarity and creates a torque urging the interaction element to rotate from the second rotational position to the first rotational position when the electromagnetic means is energized in a second polarity, opposite the first polarity.