Patent ID: 6927527
Filing Date: 2005-08-09
Classification: H02N

Abstract:
1. An actuator comprising: a driving section including a plurality of electro-mechanical displacing sections for respectively electro-mechanically generating predetermined displacements, a composing section connected to one ends of the displacing sections for composing the displacements of the displacing sections, and a fixing section for fixing the other ends of the displacing sections; a driven section driven by the driving force transmitted from the driving section; an urging section for making press contact between the driving section and driven section; and a restraining member for preventing the driving section from moving in the direction in which the driven section is driven, the fixing section deforming with the displacements of the displacing sections, wherein the restraining member is arranged to abut against a surface in the vicinity of the axis of symmetry of a base member of the fixing section, and the restraining member is arranged at the position or in the vicinity of the position where the amount of the deformation of the fixing section is minimum.