Abstract: In a fully concealed hinge (1), a connecting device (2) joins a first and a second fastening member (1a;1b) allowing their relative mobility between open and closed position. An arm element (20) of the connecting device (2), hinged on a pin (3) of the first fastening member (1a), has at different positions along said pin (3) a first (5) and a second (6) cam element having corresponding active portions (52, 62) interacting with a first and a second tappet (50, 60) of the first fastening member (1a) in respective, at least partly not superposed, angular fields of rotation of the arm element (20). First and second elastic means (51, 61), biasing the first and second tappet (50,60) respectively, are loaded by increasing the angle of rotation in the first or second angular field, respectively, and released by decreasing said angle of rotation, thereby causing movement towards the closed position.

Abstract: In a fully concealed hinge (1), a connecting device (2) joins a first and a second fastening member (1a;1b) allowing their relative mobility between open and closed position. An arm element (20) of the connecting device (2), hinged on a pin (3) of the first fastening member (1a), has at different positions along said pin (3) a first (5) and a second (6) cam element having corresponding active portions (52, 62) interacting with a first and a second tappet (50, 60) of the first fastening member (1a) in respective, at least partly not superposed, angular fields of rotation of the arm element (20). First and second elastic means (51, 61), biasing the first and second tappet (50,60) respectively, are loaded by increasing the angle of rotation in the first or second angular field, respectively, and released by decreasing said angle of rotation, thereby causing movement towards the closed position.

Abstract: A structural assembly (1) for sliding doors (12) which can be recessed into a structural casing (3; 59) contained in a building wall (30) comprises uprights (4; 64) which can be connected to an entrance opening (25) of the casing (3; 59), the uprights having section bars (5; 65) for connecting finishing elements (33) to coverings (24; 60; 23) of a casing (3; 59) wall element (2). The section bars (5; 65) have a multi-sided outer surface, with tabs (6; 56; 7; 57). A first tab (6; 56) can be connected to a face of the wall element (2) facing towards the inside of the casing (3; 59). The second tab (7; 57) projects transversally to the plane in which the door (12) slides, parallel with an end surface (9) of the coverings (24; 60; 23) of the wall element (2), remaining confined inside the outer edge (26; 62) of the building wall (30). The uprights (4; 64) can be connected both to the section bars (5; 65) and to part of the end surface (9) of the covering (24; 60; 23) with which they are in direct contact.