| 摘要 |
<p>There is described an actuator (10) for effecting a pivotal movement about two mutually perpendicular axes (6, 7), which actuator comprises one motor (14). A primary reduction step (20) is formed by a worm (21) and a worm wheel (22) which is coupled to a rotation-selective coupling (50) having two outputs. Each of those outputs is coupled to a secondary reduction step (30; 40), consisting of a worm (31; 41) and a worm wheel (32; 42). Via a pin/slot coupling (35; 36), each secondary worm wheel (32; 42) is coupled to a part (16) to be displaced.</p> |
