Patent ID: 8063539
Filing Date: 2011-11-22
Classification: H02N

Abstract:
1. An electrostrictive drive with an electrostrictive actuator that changes length upon activation, and a traversing frame that surrounds the actuator, the traversing frame being connected to the actuator for applying the change of length of the actuator and that amplifies the change in length of the actuator, the traversing frame being formed from a laminate body composed of wound and cured prepreg, wherein surrounding the traversing frame is a holding frame formed from a laminate body of wound and cured prepreg; and wherein the laminate body of at least one of the traversing frame and the holding frame is formed from several individual cut pieces of the prepreg that are wound around a winding mandrel, junctions between the cut pieces being offset between the layers in the peripheral direction of the laminate body.