| 摘要 |
<p>Mechanism for sofa-beds and the like, which comprises at least one bedspring (2) which is divided into a plurality of frames (3, 4, 5) mutually hinged two by two and is mechanically connected to a base (1) by means of at least one first lever system (A) suitable for lifting the bedspring (2) from the base (1), which first lever system (A) is mechanically connected through at least one control rod (12) to at least one second lever system (B) suitable for extending at least one leg (13) for supporting the bedspring (2) when it is extended, characterized in that the control rod (12) is pivoted in a first pivoting point (Pl) to a first lever (14) pivoted in a second pivoting point (P2) to a frame (5) of the bedspring (2) or to a member integral with the latter, a second lever (15) being pivoted to the first lever (14) in a third pivoting point (P3), wherein the leg (13) is pivoted to the second lever (15) in a fourth pivoting point (P4) and to a third lever (16) in a fifth pivoting point (P5). The present invention relates also to a sofa- or chair-bed which comprises said mechanism.</p> |
