Apparatus for driving moving object, has propelling element that is pushed away against driving direction by springy elements provided at surfaces of propelling element according to contraction of actuator

摘要

The apparatus (1) has propelling element (2) that is provided in friction contact with propelled element (3) to move the propelled element by expansion or contraction of piezoelectric actuator (4). The propelled element is moved in driving direction by expansion of actuator. The propelling element is pushed away against driving direction by springy elements (6,8) provided at surfaces (5,7) of propelling element according to contraction of actuator.