| 摘要 |
The system has a rotation point between an end (1) of a fixed rigid unit and an end (2) of a mobile rigid unit. The ends of the rigid unit show support surfaces capable to pair themselves respectively one on the other. An elastic unit is arranged to maintain the support between the surfaces. Rotation points (P1, P2) are movable in two orthogonal planes within the limits allowed by a guiding unit. |
