Roof hatch for vehicles

A roof hatch for vehicles, having a frame (2), a lid (3), an opening and closing system (7) having brackets (8) fixed to the lid (3) and respective cranks (11), each of which is mounted in rotatory manner on the frame (2) and has an arm (13) connected to the respective bracket (8) by means of a pin (16) which engages a terminal seat (14) of the arm (13) and a slit (15) of the bracket (8) and is withheld in the terminal seat (14) by means of a split pin (17), and a quick release system of the lid (27-30), which has a main cable (27) normally stretched along a path (P) extending along part of the frame (2), at least one handle (29, 30) coupled to the main cable (27) and mounted mobile on the frame (2) to extract a section of main cable (27) from the path (P), secondary cables (35, 36) coupled to the split pins (17), and rods (33) for transferring the movement of the main cable (27) to the secondary cables (35, 36) so as to remove the split pins (17) from the terminal seats (14).