Abstract: A window regulator includes a threaded shaft (20) arranged at the concave side of the window (16) and extending in the direction of sliding of the same window, a nut screw (24) engaging the threaded shaft (20), which is movable up and down along the shaft, a driving member (26) fastened to a lower zone of the window (16), and a member for interconnecting the nut screw (24) and the driving member (26), adapted to ensure the interconnection of the driving member (26) and the nut screw (24) independently of their distance. The interconnection member includes at least a rigid connecting rod (36; 36a) articulated on one side to the nut screw (24) and on the other side to the driving member (26), which is able to assume different tilts when the distance between the driving member (26) and the nut screw (24) changes.

Abstract: A window regulator comprises a threaded shaft (20) arranged at the concave side of the window (16) and extending in the direction of sliding of the same window, a nut screw (24) engaging the threaded shaft (20), which is movable according a to-and-fro movement along the shaft, a driving member (26) fastened to a lower zone of the window (16), and means for interconnecting the nut screw (24) and the driving member (26), adapted to ensure the interconnection of the driving member (26) and the nut screw (24) independently of their distance. The interconnection means comprise at least a rigid connecting rod (36; 36a) articulated on one side to the nut screw (24) and on the other side to the driving member (26), according to an arrangement such as to assume a variable configuration when the distance between the driving member (26) and the nut screw (24) changes.

Abstract: Electric safety-lock consisting of a motor (3) which by means of movement reduction gears (4, 5) drives a worm screw (6) axially mounted on the driven wheel (5). A slider (8) is keyed onto the worm screw (6) on which the mobile lock studs (9) entering the holes (10) in the locking box (1) are fastened. A mobile rack (13) is mounted on the slider (8); the rack (13) may be operated in case of emergency by a gear wheel (14) meshing with a cylinder or sprocket latch (17) and functioning when using a key (15) or knob. An electric circuit provided with sensors (24, 25, 26) provides for remote control (34) of the door lock via opening (A) and closing push-buttons (C). The safety-lock may also be equipped with an alarm system.