Abstract: An electrically powered park lock actuator for use with an automotive vehicle transmission. The actuator is mechanically independent from a shift actuator which shifts the transmission between gear ranges, and comprises two high-speed, reversible DC electric motor acting via a speed reduction gear train to move a locking pawl into and out of engagement with a gear on the transmission output shaft. The shafts of the two motors are connected to a common worm which forms the fist stage of the gear train, and either one of the motors is individually capable of actuating the locking pawl. In the preferred embodiment, the park lock actuator is controlled by an electronic transmission control system so that the lock actuator may be controlled in coordination with a power-operated transmission gear shift actuator for integrated operation of the transmission. A back-up battery is supplied to provide sufficient power to unlock the transmission in the event of a failure of the vehicle main electrical power system.

Abstract: A window regulator for raising a lowering a window pane in a motor vehicle. The regulator includes a scissors linkage including crossed lever arms connected at a pivot axis. The lever arms are attached at their upper ends to spaced points on the lower edge of the window pane and a cable is connected to the linkage at the pivot axis of the crossed arms. The cable is wrapped around a drum driven by a motor and is further trained over an upper pulley positioned above the pivot axis of the linkage and a lower pulley positioned below the pivot axis of the linkage. The regulator further includes a lower cross rail defining a rear pivot pivotally mounting the lower end of one of the lever arms, an intermediate pivot pivotally mounting the lower pulley, and a forward slot slidably mounting the lower end of the other lever arm.