| 摘要 |
<p>A phase change mechanism is disclosed for varying the phase of a drive member (12) relative to a driven member (10), the two members being rotatable about a common rotational axis. The mechanism comprising a yoke (22) fast in rotation with one member (10) and having a contoured inner surface, a transverse pin (18) rotatable with the other member (10) and having opposite ends (24) engaging the inner surface of the yoke in a plane offset from the rotational axis, an axially displaceable actuating rod (30) and means (36, 38) coupling the transverse pin (18) to the actuating rod (30) to cause the transverse pin to move from side to side and rotate the members (10, 12) relative to one another in response to axial displacement of the actuating rod (30).</p> |
