| 摘要 |
An articulated mechanism is described that allows to lift a net of a bed, or in general a support plane (12) for a mattress, to a certain height from ground and/or in respect of a frame (10). In order to help lifting the frame without effort, the mechanism comprises two substantially parallel segments (16 18) each hinged at their extremity to a side of the frame and at the other extremity to the support plane so as to constitute as a whole an articulated parallelogram; and motor means (16 20) adapted to push the two segments making them rotate around the hinging points on the frame, thereby lifting the frame.
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