US 11,866,979 B2
Window lift system and motor vehicle door
Michael Trautmann, Neudrossenfeld (DE); Norman Hümmer, Ebensfeld (DE); and Michael Jahn, Baunach (DE)
Assigned to Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg
Appl. No. 17/333,813
Filed by Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg, Bamberg (DE)
PCT Filed Nov. 29, 2019, PCT No. PCT/EP2019/083064
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2020/109539, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10 2018 220 656.2 (DE), filed on Nov. 30, 2018.
Prior Publication US 2022/0090430 A1, Mar. 24, 2022
Int. Cl. E05F 11/48 (2006.01); E05F 15/689 (2015.01)
CPC E05F 11/488 (2013.01) [E05F 15/689 (2015.01); E05Y 2201/224 (2013.01); E05Y 2201/684 (2013.01); E05Y 2900/55 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A window regulator system for use in a motor vehicle, the window regulator system comprising:
a first guide rail provided with a first upper end region including a first stop wherein the first stop is spaced apart from ends of the first guide rail;
a second guide rail provided with a second upper end region and including a second stop, wherein the second stop is spaced apart from ends of the second guide rail;
a first slider configured to be guided on the first guide rail and configured as a single-part to be movable solely as a whole between an upper end position and a lower end position;
a second slider configured to be guided on the second guide rail and configured as a single-part to be movable solely as a whole between the upper end position and the lower end position;
a cable drum; and
a drive cable configured to be driven by means of the cable drum, coupled to the first and second sliders, and guided between the second upper end region of the second guide rail and a lower end region of the first guide rail in a Bowden cable sheath;
an upper first cable deflector disposed in the upper end region of the first guide rail;
a lower second cable deflector disposed a lower end region of the second guide rail, wherein a first cable section of the drive cable is coupled to the first slider and the upper first cable deflector is configured to guide the first cable section to the cable drum and the lower second cable deflector is configured to guide the drive cable from the cable drum to the second slider;
an upper second cable deflector disposed in the upper end region of the second guide rail; and
a lower first cable deflector arranged in a lower end region of the first guide rail, wherein a second cable section is coupled to the second slider and the upper second cable deflector is configured to guide the second cable section to the second slider and the lower first cable deflector guides the second cable section to the first slider,
wherein the drive cable is configured to move the first and second sliders along the guide rails between the upper end position and the lower end position, into a stop position, wherein the second slider lies in the upper end position against the second stop and the first slider is spaced apart from the first stop by a predetermined distance in the upper end position, and wherein the predetermined distance ranges between 0.4 percent and 1.2 percent of a length of the Bowden cable sheath.