Patent ID: 8720994

Claim:
A system for adjusting a relative position between two furniture parts comprising: a first part having a first side and a second side, at least two parallel guide surfaces spaced apart for a distance X being defined on the first side; a second part facing said first part; a multi-lobe cam having a continuous profile consisting of a plurality of curved portions forming an odd number n of pairs of first and second arcs, wherein n≧3, wherein a first arc of each pair has a concavity faced toward a concavity of a second arc of the same pair, said first and said second arc having a same center of curvature, wherein a sum of a radius of curvature r 1 of the first arc of each pair and of a radius of curvature r 2 of the second arc of the same pair are equal to the distance X, and wherein the multi-lobe cam is housed within two of the at least two parallel guide surfaces, such to engage said two of the at least two parallel guide surfaces, and is pivoted to the second part to rotate eccentrically, thereby causing the two furniture parts to be in at least three stable positions in relation to each other; and a member configured to rotate the multi-lobe cam.