Abstract: A motor-vehicle window lift comprises a mounting structure, a drive system, a cable system having two cable segments running substantially parallel to each other, reversing rollers for the cable system and two window-pane actuators each affixed to a respective one of the cable segments, the actuators are displaceably guided along a respective guide of the mounting structure, wherein the actuators are rigidly connected to each other by a rigid coupling such that the actuators are non-movably fixed to the rigid coupling in a lift operating condition.

Abstract: A motor-vehicle window lift comprises a mounting structure a drive system a cable system having two cable segments running substantially parallel to each other, reversing rollers for the cable system and two window-pane actuators each affixed to a respective one of the cable segments the actuators are displaceably guided along a respective guide of the mounting structure, wherein the actuators are rigidly connected to each other by a rigid coupling such that the actuators are non-movably fixed to the rigid coupling in a lift operating condition.

Abstract: A device for the automatic length-correction of flexible cable drives, in particular a cable adjusting device (10) with a tube fitting (16), said tube fitting (16) comprising a seat (18) for a cable-drive tube and further a duct (46) for the cable proper of the cable drive. The outside wall in the region of the extension (20) is fitted with a radial toothing (22). An essentially bush-shaped casing (12) comprises a longitudinal borehole (14) inside which said extension (20) is displaceably guided in the longitudinal direction. At a rear segment (13) the casing (12) comprises a receiving recess (15) adjoining the front segment (11) with the longitudinal borehole (14) and receiving in displaceable manner within two limit positions a detent member (23) cooperating with the radial toothing (22) and able to move from a locked position into an unlocked position.

Abstract: The invention concerns an electric-motor drive system for a bowden-cable window lifter. The system includes a braking spring in the form of a helical spring in the manner known from manual bowden cable window lifters. This is made possible by the inclusion on the worm wheel of an arcuate slot crossed by a tab affixed to the cable reel and extending to the other side of the worm wheel into the clearance of a ring affixed to the worm wheel. The ring and the tab are enclosed by the helical spring of which the bent-off ends each enter the gap between the tab and ring. These components (ring, tab, and spring) are combined to one side of the worm wheel, and achieve the locking of the cable mechanism--by expanding the spring against a surrounding braking surface--when the mechanism is actuated in reverse by movement of the window pane.

Abstract: The invention concerns a tensioning device for the cable of a cable window lifter which is mounted in a drive bracket pulled up and down along a guide rail by means of a cable wound around an actuation drum. One cable end is solidly joined to the drive bracket whereas the other cable end is connected by a directional lock to the drive bracket. This directional lock compensates any cable elongation taking place within the cable actuation system by means of spring action. The tensioning device of the invention is characterized by providing further compensating means. This further compensation is needed in the event of excessive stresses exerted on the cable actuation system in the closed window position which results in a spurious cable elongation caused thereby. It also eliminates this compensation when this excess stress is no longer present.

Abstract: The invention concerns a tensioning device for the cable of a cable window lifter which is mounted in a drive bracket pulled up and down along a guide rail by means of a cable wound around an actuation drum. One cable end is solidly joined to the drive bracket whereas the other cable end is connected by a directional lock to the drive bracket. This directional lock compensates any cable elongation taking place within the cable actuation system by means of spring action. The tensioning device of the invention is characterized by providing further compensating means. This further compensation is needed in the event of excessive stresses exerted on the cable actuation system in the closed window position which results in a spurious cable elongation caused thereby. It also eliminates this compensation when this excess stress is no longer present.

Abstract: An apparatus to adjust the length of the sheath of a bowden cable and capable of transmitting substantial forces. The bowden cable sheath terminates into a sleeve with a stepped outside diameter whereby it can be inserted into a structure fixed housing against the force of a compression spring. The housing contains a set of spacer panes which are spring-loaded and rest on the large diameter of the sleeve and which upon displacement of the sleeve out of the housing sequentially drop on the small sleeve diameter. The dropped panes extend the sheath each time by their thickness and between the sleeve collar and the housing inside wall form the support for the force exerted on the bowden cable. In a special embodiment, the apparatus is equipped with mechanical means accessible from the outside which when actuated will reset the already dropped spacer panes into their initial positions.