Abstract: A device for connecting an arm (2) to a fastening plate (3) comprises an external casing (11) rotatably coupled to the fastening plate (3) by a pivot assembly (5). The external casing (11) is provided with a substantially cylindrical cavity having a hemispherical bottom accessible from the outside of the casing (11). The pivot (5) extends with clearance through a cylindrical cavity of a substantially spherical internal casing (21). The internal casing (21) is fastened to an extremity of the arm (2). The arm (2) extends with clearance through a clamping collar (13). The clamping collar (13) is slidably mounted in the cavity of the external casing (11) for exerting pressure against the internal casing (21) and for clamping the arm (2) in a desired variable angular position with respect to a central axis of the cavity of the external casing (11).

Abstract: The door is connected to the fixed frame of a cabinet by means of two elbow-shaped horizontal arms each of which is constituted by two branches, by an elbow and by two extremities rotatable round respective pivots. The ratio between the length of the second branch and that of the first branch is greater than 1 and the ratio between the length of said first branch and the distance (A) between said pivot and the closest point of the door in the closed position is equal to or greater than 1.In the displacement of the door, the two elbow-shaped horizontal arms co-operate with a guide whereby the door is maintained substantially parallel to the fixed frame.