| 摘要 |
It comprises a transmission mechanism (1) including a gear (11) for converting the power of a motor (7) into a linear power, a coupling pinion (2) equipped with parts of larger and smaller diameters, a conversion pinion (3), the central hole (32) of which can fit the various shapes of crankshaft (8), a detector without an external energy source (5) including a magnet (55) rotating and housed in an induction winding (54), the rotation of the magnet producing pulses which are used for controlling a window glass in reverse, a rack (6) housed in tubular housings (4), the notches (62) of which are of the ball type, the meshes between the various members being such that the crankshaft is automatically driven off the motor (7), an electronic circuit also being provided for bringing about reversal of the movement of the window glass in the event of any obstacle being encountered in its ascending movement. <IMAGE> |
