Motor vehicle window lifter

Patent metadata

Field	Value
Publication number	US-9566846-B2
Application number	US-201414550456-A
Country	US
Kind code	B2
Filing date	Nov 21, 2014
Priority date	Jul 6, 2010
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A motor vehicle window lifter is provided with a twistable or bendable guide rail on which a driver to be coupled with a window pane is shiftably mounted and which includes fastening points which are connectable with fastening receptacles of a carrier element. Between the fastening receptacles of the carrier element at least one supporting point is provided. When bracing the fastening points of the guide rail with the fastening receptacles of the carrier element, the guide rail supports on the supporting point and twisting of the initially straight guide rail with a specified degree of twisting and/or bending of the guide rail with a specified bending radius is effected.

First claim

The invention claimed is:

1. A method for assembling a window lifter of a motor vehicle, wherein the window lifter comprises a bent guide rail on which a driver to be coupled with a window pane is shiftably mounted, said guide rail including fastening points which are braceable with fastening receptacles of a carrier element, the method comprising:
a) providing at least one supporting point or additional fastening point between the fastening receptacles of the carrier element,
b) placing the guide rail pre-bent with a first bending radius on the fastening receptacles and the supporting point or additional fastening point,
c) attaching the guide rail at the fastening points of the guide rail to the fastening receptacles of the carrier element, and
d) fastening the pre-bent guide rail to the fastening receptacles of the carrier element while supporting the guide rail on the supporting point or additional fastening point such that the pre-bent guide rail is bent up to a second bending radius, which is greater than the first bending radius, or straightened.

2. A method for assembling a window lifter of a motor vehicle, wherein the window lifter comprises a base plate into which at least two bendable or twistable guide rails are integrated for guiding a driver to be coupled with a window pane along an adjustment direction and which includes first fastening points which are connectable with fastening receptacles of a vehicle door, the method comprising:
a) connecting the first fastening points of the base plate with the fastening receptacles of the vehicle door,
b) connecting the guide rail with a rigid region of the base plate via connecting portions, and
c) effecting a twist or bend of the guide rail by connecting middle regions of the at least two bendable or twistable guide rails of the base plate with each other via second fastening points located at opposing ends of a comparatively rigid cross-beam.

3. The method of claim 2 , wherein the guide rail is bent about a longitudinal vehicle axis or twisted about a vertical vehicle axis.

4. The method of claim 3 , wherein the connecting portions are formed as struts which are connected with the ends and a middle portion of the guide rails.

5. The method of claim 2 , wherein the rigid region of the base plate is arranged between the at least two flexible or twistable guide rails, wherein the first fastening points are provided at respective ends of the guide rails and at least one supporting point or further fastening point is provided between the first fastening points at the respective ends of the guide rails, and wherein at least one of the first fastening points is provided at an axle of a deflection pulley of the window lifter for guiding and deflecting a window lifter cable.

6. The method of claim 5 , wherein the at least one supporting point comprises a component integrated into a door bodyshell of the vehicle door, wherein diagonal struts connected with ends of the at least two bendable or twistable guide rails contain flexible regions.

7. A method for assembling a window lifter of a motor vehicle, wherein the window lifter comprises a base plate into which at least one bendable or twistable guide rail is integrated for guiding a driver to be coupled with a window pane along an adjustment direction and which includes fastening points which are connectable with fastening receptacles of a vehicle door, the method comprising:
a) connecting the fastening points of the base plate with the fastening receptacles of the vehicle door,
b) connecting the at least one guide rail with a rigid region of the base plate via connecting portions,
c) effecting a twist or bend of the at least one guide rail by deforming a flexible region of at least one of the connecting portions.

8. The method of claim 7 , wherein the flexible region of the at least one connecting portions is formed of a reduction of a cross-section as compared to a cross-section of a rigid region of the at least one connecting portions or wherein the flexible region of the at least one connecting portion comprises a cross-sectional shape having a lower moment of resistance than a cross-sectional shape of the rigid region.

9. The method of claim 7 , wherein at least one of a rigid region of the base plate and a rigid region of the connecting portions is made of a rigid material, and the flexible region is made of a less rigid or a flexible material.

10. The method of claim 7 , wherein the base plate comprises a mounting frame comprising said connecting portions, wherein articulations are located at end regions of said connection portions, the articulations being configured for accommodating other guide rails of different window lifters and vehicle doors, and wherein the mounting frame is formed X-shaped with a rigid middle region and four diagonal struts proceeding diagonally from the rigid middle region, wherein angled end regions of the diagonal struts include variable articulations configured for accommodating the other guide rails.

Assignees

• Brose Fahrzeugteile

Inventors

• Kriese Olaf
• Schultz Markus
• Salhoff Thomas
• Aschmutat Raimund

Classifications

• E05F15/689

  specially adapted for vehicle windows · CPC title

• E05F11/06

  in guide-channels · CPC title

• B60J5/0416

  Assembly panels to be installed in doors as a module with components, e.g. lock or window lifter, attached thereto · CPC title

• E05F15/646

  allowing or involving a secondary movement of the wing, e.g. rotational or transversal · CPC title

• B60J5/0468

  Fixation or mounting means specific for door components (fasteners in general F16B21/00) · CPC title