| 摘要 |
The device (3) has a selector (5) for selectively positioning tilting members (17, 18), and an actuating element (7) for actuating the selector, where the actuating element is piezoelectric in nature. The selector is rotated with respect to a support member (22) for supporting the selector. A rotation axis (X21) of the selector is located closer to a fixed end (74) of the actuating element. Stop parts (S17, S18) limit movements of the selector, where each stop part is arranged on the tilting members. |
