| 摘要 |
PURPOSE:To improve positioning accuracy as compared with a conventional rotary actuator and to reduce in size and weight by realizing a rotary inching worm. CONSTITUTION:An arm 1 of an operating lever is inserted into a stator 3 and a rotor 4, and the arm 1 is gripped with/released from the elements 3, 4 through piezoelectric elements (a), (c). A piezoelectric element (e) for energizing the rotor 4 to normally/reversely drive the stator 3 around an axial center (m) of the arm 1 is provided. These elements (a), (c), (e) are pulse-driven by a common driver. |
