A device for relative displacement of two elements

Details A device for relative displacement of two elements A device for relative displacement of two elements

B - Operations, Transporting

25

J

B25J 9/16 (2006.01) B25J 9/10 (2006.01) B25J 11/00 (2006.01)

Patent

CA 2277846

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 have substantially equal length and which are substantially parallel, said links (9, 14) being orientated 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.

L'invention concerne un dispositif permettant le déplacement relatif de deux éléments (1, 2). Ce dispositif comprend deux systèmes de liaison (5, 6) couplés en série par un système de connexion (4). Le premier système de liaison (5) comprend au moins trois entretoises (9, 14) sensiblement parallèles et de longueur sensiblement égale. Vues dans leur direction longitudinale, ces entretoises (9, 14) sont placées entre le système de connexion (4) et l'élément (2) dans une relation sensiblement triangulaire. Le second système de liaison (6) comprend au moins un parallélogramme agissant entre le système de connexion (4) et l'élément (1). Des premier et deuxième systèmes (17, 18) appliquant une force sont conçus pour faire pivoter le premier système de liaison (5) tandis qu'un troisième système (33) appliquant une force est conçu pour faire pivoter le second système de liaison (6).

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