Abstract: A sofa arm (1) is described, connected to the frame (2) of the sofa by means of at least one bayonet coupling (3), which comprises means designed to fix it reversibly to the frame of the sofa. The fixing means comprise, for each bayonet coupling, an L-shaped body (4) integral with the element of the bayonet coupling which is fixed to the arm (1) or with that fixed to the frame of the sofa, locking means (5) integral with the frame of the sofa or with the arm and a screw (6), inserted into a through hole present in the area of the L-shaped body (4) that protrudes with respect to the surface of the arm or with respect to the surface of the frame and into the locking means (5) to reversibly fix the L-shaped body (and the arm) to the frame of the sofa (1). The arm advantageously also carries the supporting feet (7) of the sofa.

Abstract: Sofabed with innovative position adjustment mechanism and a fast assembly process, comprising padding elements, a base structure (1) a plurality of mutually hinged frames (2) supported by said base structure and supporting said padding elements, and a kinematic mechanism (3) to change the frames positions; moreover, the base structure comprises two identical elements, named “small legs” (4), a spacer (5), and is characterised by a “hinge” plate (6) consisting of two flat surfaces, fixed on the small leg (4), which consists of two flat surfaces with an almost rectangular hole (7); said hole is tapered on one side (8) to lodge the spacer (5). This assembly procedure removes the clearance in the coupling between the hinge (6) and the spacer (5) and obtains a perfect perpendicularity between the spacer and the “small leg” (4). According to a subsequent aim the base structure assembly is realised by only two bolts.

Abstract: A sofa arm (1) is described, connected to the frame (2) of the sofa by means of at least one bayonet coupling (3), which comprises means designed to fix it reversibly to the frame of the sofa. The fixing means comprise, for each bayonet coupling, an L-shaped body (4) integral with the element of the bayonet coupling which is fixed to the arm (1) or with that fixed to the frame of the sofa, locking means (5) integral with the frame of the sofa or with the arm and a screw (6), inserted into a through hole present in the area of the L-shaped body (4) that protrudes with respect to the surface of the arm or with respect to the surface of the frame and into the locking means (5) to reversibly fix the L-shaped body (and the arm) to the frame of the sofa (1). The arm advantageously also carries the supporting feet (7) of the sofa.