| 摘要 |
<p>A device for relative movement of two elements (1, 2) comprises two link arrangements (5, 6) coupled in series by means of a connection arrangement (4). A first link arrangement (5) comprises at least three links (9, 14) which are substantially equal in length and parallel, said links being positioned in a substantially triangular relation viewed along the longitudinal direction of the links, between the connection arrangement (4) and the element (2). The second link arrangement (6) comprises at least one parallelogram acting between the connection arrangement (4) and the element (1). First and second force applying arrangements (17, 18) are adapted to cause the first link arrangement (5) to pivot. A third force applying arrangement (33) is adapted to cause the second link arrangement (6) to pivot.</p> |
