Patent ID: 7919901
Filing Date: 2011-04-05
Classification: H02N,Y10T

Abstract:
1. A stepping actuator comprising: a movable body comprising a geometrical structure having attached at opposite sides thereto a first shuttle arm having a first longitudinal direction and a second shuttle arm having a second longitudinal direction, at least one drive actuator co-operative with the geometrical structure to drive the stepping actuator, and at least two latch actuators operative to latch the stepping actuator, a first of the latch actuators being co-operative with the first shuttle arm and a second of the latch actuators being co-operative with the second shuttle arm, wherein the geometrical structure comprises has a displacement magnification ratio of between 0.15 and 2 at operating voltages of 15V or lower, the displacement magnification ratio being defined as the ratio of a displacement of the movable body in a first direction substantially parallel to the longitudinal direction of the first shuttle arm to a deformation of the geometrical structure causing the displacement of the movable body and being directed in a second direction substantially perpendicular to the first direction.