DE202006018071U1 - Motor vehicle window lifter for adjusting a window pane of a motor vehicle - Google Patents

Abstract

Motor vehicle window lifter for adjusting a window pane of a motor vehicle, with
A longitudinally extended guide rail along which a catch to be connected to the window pane is longitudinally movably guided,
A flexible traction device, which is provided with a section along the guide rail and which serves for the transmission by means of a window lift drive generated adjustment forces on the driver in order to move it along the guide rail, and
- At least one arranged on the guide rail deflecting element for deflecting the flexible traction means, so that this extends with a Zugmittelabschnitt along the guide rail,
characterized,
the deflecting element (3) is mounted and / or supported both on the guide rail (2) and additionally on another supporting component (1, 101) of a motor vehicle door which differs from the guide rail (2).

Description

The The invention relates to a motor vehicle window regulator for adjusting a window pane of a motor vehicle according to the preamble of Claim 1.

One Such window comprises at least one elongated Guide rail, along the one to be adjusted to the window pane to be adjusted (this means, to be fixed to the window pane or in one piece with this shaped) carrier is movably guided, as well as one along the guide rail extended flexible traction means, which generated for transmission by means of a window lift drive adjusting forces on the driver serves to move it along the guide rail and can in this case adjust a window pane attached to the driver to be able to.

Usually is in the range of each of the two ends of the elongated Guide rail respectively a deflecting element, e.g. in the form of a pulley, stored, the a circumferential rope groove for the having flexible traction means and with that of a window lift drive outgoing flexible traction means is deflected so that with the the driver connected Zugmittelabschnitt along the guide rail extends. When activating the window regulator drive becomes the flexible Traction means by the adjusting moment generated at the window lift drive emotional. This can for example be done by the flexible Traction means around one of a drive motor of the window regulator drive driven, rotatable cable drum is wound.

by virtue of the deflection of the flexible traction means on the guide rail side deflecting elements, so that a traction means section along the guide rail extends, this Zugmittelabschnitt in operation of the window regulator drive along that guide rail moved longitudinally and in this case takes the driver defined on the traction means section as well as the window pane attached to the driver.

Of the Invention is based on the problem, a motor vehicle window lifter of the type mentioned above, in particular with regard to a simple and reliable Storage of the deflection elements.

This Problem is inventively the creation of a motor vehicle window lifter with the features of claim 1.

After that is the deflection elements, in particular in the form of a deflection roller, both on the guide rail as well as in addition at another, from the guide rail stored different (separate) supporting component of a motor vehicle door and / or supported.

Under a load-bearing door component In this case, a component of a motor vehicle door is understood to be within the motor vehicle door bearing function, for example, because the door component carries more functional components of the motor vehicle door or because the door component stabilizes the door structure as a structure-forming component. at the load-bearing component of a motor vehicle door may be, for example around a door skin or a so-called door module carrier as Part of a door skin act on which the guide rail arranged and attached. It can also be another Structural component of a motor vehicle door, such as a Parapet reinforcement, act.

Thereby, that such a load-bearing door component additionally to the guide rail for storage or for support the deflecting element is used, can be with simple means using a reliable existing door components already reliable Reaching storage of the deflecting element.

The Invention is particularly advantageous applicable when the deflecting element as one on the guide rail arranged rotatable pulley is formed, both at the guide rail as also in addition at another, from the guide rail stored various supporting component of a motor vehicle door and / or supported

The Deflection pulley can be attached to the guide rail and / or the other door component respectively be supported radially and / or axially and radially and / or axially supported.

Advantageous this storage or this support does not take place directly on the Pulley itself, but rather on a rotation axis of the Deflection roller defining bearing element, for example in the form of a Bearing journal or bearing pin. In other words the pulley preferably indirectly via a bearing element on the guide rail as well as the load-bearing door component stored and / or supported.

According to one Variant of the invention, the bearing element forms a (fixed) physical axis, around which the pulley rotates during operation of the window regulator, wherein the bearing element spatially is fixed so that it does not coincide with the Deflection pulley moved.

The bearing element is this at the Füh fixed guide rail and / or the supporting door component, for example, integrally formed or attached as a separate component by fastening means thereto. In this case, in particular a cohesive connection by welding or gluing is preferred.

Advantageous is still an embodiment in which the bearing element after arrangement of the pulley in their Insert functional position, so that it forms on the one hand a bearing axis for the pulley and on the other hand, on the guide rail and the other door component stored or supported is.

To In another variant of the invention, the bearing element is a rotatably connected to the deflection roller (that is integrally formed on this or executed as a separate element on this specified) bearing shaft. The Bearing element is then in each case on the guide rail and the other door component rotatably mounted axially and / or radially.

at Both variants of the invention, the bearing element on the guide rail and / or the further door component each in an opening, for example in the form of a drip-like recording, be included.

According to one embodiment of the invention, the bearing element to compensate for elongation of the traction device, which can occur during operation of the motor vehicle window lifter over the service life of a motor vehicle (as the so-called rope length compensation) along the (extension direction of the) guide rail movably guided, for example by means of a the guide rail and / or the further door component provided longitudinal guide, in particular in the form of a slot. The rope length compensation takes place in a known manner, see eg DE 100 45 804 A1 , against the bias of a force acting on the guide roller along the extension direction of the longitudinal guide under bias elastic element.

The Guide roller and the bearing element are each preferred between the guide rail and the other door component stored.

alternative the deflecting element can also be formed by a deflecting piece, which in such a way is arranged stationary, that it is a movement of the flexible Pulling means in the operation of the window does not rotate; it can, however minor compensatory movements of the deflection piece for purposes of rope length compensation be provided. The deflector is preferably one of the associated bearing component the motor vehicle door different / separate (ie not molded) element which is based on the latter and optionally by suitable coupling means, e.g. Latching means, to this is held.

Further Details and advantages of the invention will become apparent in the following Description of exemplary embodiments be clear from the figures.

It demonstrate:

1a a plan view of an assembly carrier of a motor vehicle door together with a window mounted thereon;

1b a cross section through the window 1a in the region of a guide rail of the window regulator;

2a a plan view of a guide rail of the window regulator 1a in the region of a deflection roller of the window regulator according to a first embodiment;

2 B a cross section through the arrangement 1a ;

3a and 3b a first modification of the arrangement of the 2a and 2 B ;

4a and 4b a second modification of the arrangement of the 2a and 2 B ;

5a and 5b a third modification of the arrangement of the 2a and 2 B ;

6a and 6b a fourth modification of the arrangement of the 2a and 2 B ;

7a and 7b a fifth modification of the arrangement of the 2a and 2 B ;

8a and 8b a sixth modification of the arrangement of the 2a and 2 B ;

9 a development of the arrangement of the 8a and 8b ;

9a a schematic representation of a detail 9 ;

10a A second embodiment of an assembly support for a motor vehicle door with a window mounted thereon;

10b a cross section through the window 10a in the region of a guide rail of the window regulator;

11a a top view of a section of the window 10a in the region of a deflection roller of the window regulator according to a first variant;

11b a cross section through the arrangement 11a ;

12a a first modification of the arrangements of the 2a to 8b such as 11a and 11b ;

12b a cross section through the arrangement 12a

13a and 13b a second modification of the arrangement of the 2a to 8b such as 11a and 11b ,

In 1a is a plan view of an assembly carrier 1 represented a motor vehicle door, which in the present case is a so-called door module carrier, which together with pre-assembled functional components of a motor vehicle door, such as the in 1a shown window, can be installed in a motor vehicle door. This covers the subframe 1 typically with its designed as a carrier plate body 10 a large area in the door skin of the vehicle door. Alternatively, the subframe may also be directly a component of the door inner skin of a motor vehicle, to which the individual functional components are subsequently attached, that is, only after assembly of the motor vehicle door.

In the present case forms the subframe 1 along its circumferential outer edge 12 a sealing line over which it can rest against the door inner skin of a motor vehicle door, as will be explained in more detail below.

On the formed as a support plate body 10 of the subframe 1 a double-stranded cable window is mounted, the two longitudinally extending, substantially parallel to each other guide rails 2 comprises, in each case a driver M along the extension direction of the respective guide rail 2 is guided longitudinally movable. The two carriers M serve to connect a window pane to be adjusted by means of the window lifter, which moves along the associated guide rails when the carriers M are moving 2 each is taken to allow to adjust the window, so a window pane of a motor vehicle associated with opening or closing, depending on whether the driver M along the vertical axis of the vehicle z, along which the guide rails 2 extend, lowered or raised.

To generate a desired movement of the two carriers M, with the aim of raising or lowering an associated window pane, the two carriers M are each attached to a traction means section ZA of a flexible traction means Z. The two along each one guide rail 2 extended portions ZA of the flexible traction means Z are formed by the fact that each of the two guide rails 2 at its - viewed along the vertical axis of the vehicle z - upper and lower end of a respective deflecting element in the form of a rotatably mounted guide roller 3o respectively. 3u has, on movement of the flexible traction means Z, triggered by the drive means E, each rotate about its axis of rotation and by means of which the flexible traction means Z is deflected such that along each of the two guide rails 2 in each case a traction means section ZA of the upper deflection roller 3o to the lower pulley 3u extends.

Between the two transverse to their extension direction spaced guide rails 2 is an (electric) drive device E of the window regulator on the subframe 1 arranged, which can be formed for example by a drive motor and a cable drum driven by a gear, wherein a part of the flexible traction means Z is wrapped around that cable drum, so that the drive torque generated upon activation of the drive motor is transmitted to the flexible traction means Z and the two elongate Zugmittelabschnitte ZA each move so that they - depending on the direction of rotation of the drive motor and thus driven from the cable drum - the associated driver M along their respective direction of movement, that is substantially along the vertical vehicle axis z, raise or lower.

1b shows a section through one of the guide rails 2 in the area of the associated driver M. It can be seen that the guide rail 2 a floor area 20 and two spaced apart from each other transversely to their direction of extent, in each case on a longitudinal side of the guide rail 2 along their extension direction extending angled sections 21 . 22 one of which has a section 22 is twice angled and engages positively in the associated carrier M, that this along the longitudinal direction of the guide rail 2 slidably mounted on this. Next is in 1b the one, upper pulley 3o the guide rail 2 shown, which serves for the deflection of the flexible traction means Z.

The following are based on the 2a to 9 different ways to support the pulley 3 on the guide rail 2 Darge be presented.

The 2a and 2 B show in a plan view a first embodiment of a possible embodiment of the guide rails 2 in the region of their respective upper and lower end. The pulley is therefore in the 2a and 2 B , as well as in the following 3a to 9 , in each case simply with the reference symbol " 3 "to indicate that the configurations shown in the figures mentioned can be used for both an upper and a lower guide pulley.

As if by means of a synopsis, in particular the 1a and 2 B becomes clear, the respective guide rail extends 2 with its bottom surface 20 along the plate-shaped base body designed as a carrier plate 10 of the subframe 1 between two end sections, on each of which one of the deflection rollers 3 is stored. In the respective end section 25 that has a transition area 24 to the floor surface 20 the guide rail 2 connects, the guide rail - transverse to its extension direction - such a large distance from the opposite section 15 of the subframe on that the pulley 3 there between the one supernatant 25 forming end portion of the guide rail 2 and the opposite section 15 of the subframe 1 can be stored in which the subframe 1 one in the direction of the supernatant 25 pointing shaping (material deformation) has. The transition area 24 between the floor area 20 the guide rail 2 and their supernatant 25 is presently designed as a stage.

The bearing of the deflection roller in the region of the associated end portion of the guide rail 2 takes place in the present case in such a way that the deflection roller 3 by means of a bearing opening on a physical axis 4 is rotatably mounted, which defines a rotation axis A, around which the deflection roller 3 can rotate in the form of a pulley, and the one piece on the supernatant 25 opposite section 15 of the subframe 1 is formed and of this substantially perpendicular to the extension surface of the unit carrier 1 protrudes and in an annular receptacle 26 of the supernatant 25 the guide rail 2 intervenes. When by integrally molding on the subframe 1 spatially fixed, the bearing of the pulley 3 serving bearing axis 4 So it is a bearing element in the form of a journal, on the one hand in the axial direction a to the subframe 1 , more precisely on the supernatant 25 opposite section 15 , Supports and on the other hand in the radial direction r on the inner wall of the annular receptacle 26 of the supernatant 25 the guide rail 2 supported. As a result, so the deflection roller is supported 3 over the bearing axis 4 both on the subframe 1 (And in the axial direction a) and on the guide rail 2 (in the radial direction r). As a result, with simple means a defined, reliable storage of the pulley 3 reached.

Based 2 B is also a rope groove 30 the pulley 3 recognizable in which the flexible traction means Z is guided for deflection. In this case, the pulley 3 a threading groove 35 on, the feeding the flexible traction means Z to the rope groove 30 the pulley 3 facilitated. Furthermore, the guide rail 1 at its respective end with an angled, the rope groove 30 the pulley 3 Provide overarching security area, the - especially during assembly work - securing the flexible traction means Z in the rope groove 30 the pulley 3 serves.

Further is 2 B removable, that the subframe 1 a large section O covered in the door inner skin I a motor vehicle door and thereby with its peripheral outer edge 12 via a seal D on the inner door skin I or more precisely rests on the edge of the large-area cutout O. Through a moisture-proof system of the subframe 1 on the door inner skin I via a seal D can the subframe 1 together with the inner door skin I form a so-called wet / dry space separation of a motor vehicle door, through which the wet room located on the outer side is separated from the inside of the drying room of the motor vehicle door.

Alternatively to a one-piece molding of the bearing axis 4 on the subframe 1 , which offers itself in particular in a unit made of plastic subframe, the bearing axis 4 in any other way, for example by welding, riveting, gluing or the like, on the subframe 1 be fixed.

In the 3a and 3b is a first modification of the embodiment of the 2a and 2 B shown, the difference being that according to the 3a and 3b the storage of the pulley 3 serving and its axis of rotation A defining bearing axis 4 on the guide rail 2 , more precisely at the supernatant 25 is fixed, that is, for example, integrally formed thereon or by suitable fasteners, such as a weld, rivets or screws, attached thereto and at the same time in the opposite section 15 of the subframe 1 in a cup-shaped receptacle 16 engages, the one-piece on the subframe 1 is formed and one end of the bearing axis 4 forming pin both annularly enclosing and the front side covered. The cup-shaped receptacle 16 can be designed as an expression or as a deep-drawing area.

As a result, the bearing axis can become 4 forming journal in which in the 3a and 3b shown embodiment on the one hand axially and radially in the cup-shaped receptacle 16 of the subframe 1 support and on the other hand axially on the guide rail 2 , more precisely, its supernatant 25 support.

In the 4a and 4b is a modification of the embodiment of the 3a and 3b shown in which the supernatant 25 the guide rail 2 opposite section 15 of the subframe 1 no pot-shaped receptacle is provided in the bearing axis 4 could protrude. Instead, the bearing axis 4 at her the subframe 1 facing the end of the supernatant 25 opposite section 15 fixed by a friction-welded connection or other suitable connection. In this case, so supports the bearing axis 4 forming journal on both the supernatant 25 the guide rail 2 as well as on the opposite section 15 of the subframe 1 in each case in the axial direction a. A backup in the radial direction r takes place here by the fact that the bearing axis 4 in the form of a journal on both the subframe 1 as well as on the guide rail 2 is fastened in each case by suitable fastening means or optionally on the guide rail 2 is integrally formed.

In the in the 5a and 5b Shown embodiment, the bearing axis 4 through two bearing parts 4a . 4b formed, of which the one bearing part 4a from the subframe 1 protrudes and attached to this or integrally formed and the other bearing part 4b from the guide rail 2 , more precisely, its supernatant 25 , protrudes and attached to this or integrally formed. The two bearing parts 4a . 4b engage in the formation of a journal into each other, wherein the guide rail side bearing part 4b in a recording of the aggregate carrier side bearing part 4a intervenes.

In the in the 6a and 6b The arrangement shown is the bearing axis 4 forming journal later, that is, after inserting the pulley 3 between the supernatant 25 the guide rail 2 and the opposite section 15 of the subframe 1 , in which he - a bearing opening of the pulley 30 penetrating - through an annular receptacle 26 of the supernatant 25 the guide rail 2 through into a cup-shaped receptacle 16 in the opposite section 15 of the subframe 1 is used. For final fixation of the bearing pin can then, for example, with the supernatant 25 the guide rail 2 be welded.

In this case, the bearing axle is supported 4 forming journal on the one hand axially and radially on the subframe 1 and on the other hand additionally radially on the guide rail 2 from.

In the 7a and 7b an embodiment of the invention is shown in which for the storage of the deflection roller 3 between the guide rail 2 and the subframe 1 no spatially fixed, physical bearing axis, but rather a rotation with the pulley 3 connected bearing shaft 5 is provided. This can on the one hand in one piece with the deflection roller 3 be shaped or on the other hand as a separate shaft element on the pulley 3 be attached. The bearing shaft 5 on the one hand engages in a cup-shaped receptacle 16 in the supernatant 25 the guide rail 2 opposite section 15 of the subframe 1 a, where accordingly an end portion of the bearing shaft 5 on the one hand is enclosed annularly and on the other hand, the front side is covered, and on the other hand projects into an annular receptacle 26 of the supernatant 25 the guide rail 2 , The cup-shaped receptacle 16 of the subframe 1 serves for axial and radial bearing and the annular receptacle 26 of the supernatant 25 for radial storage of the deflection roller 3 over the bearing shaft 5 ,

The 8a and 8b show a development of the embodiment of the 7a and 7b , wherein the deflection roller 3 here about their bearing shaft 5 both in a recording 17 of the subframe 15 as well as in a recording 27 of the supernatant 25 the guide rail 2 each along the extension direction of the guide rail 2 is slidably mounted. This is the aggregate carrier side recording 17 as one along the guide rail 2 elongated receiving pot formed and the guide rail side receptacle 27 formed as a (open on one side) slot. This allows positioning of the bearing shaft 5 together with the pulley 3 along the extension direction of the guide rail 2 , ie substantially along the vertical vehicle axis z, cf. 1a , during assembly.

According to 9 can in an arrangement of the in the 8a and 8b shown type of pulley 3 or their bearing shaft 5 an elastic element 28 be assigned in the form of a spring, in the present case designed as a compression spring, which has the tendency, the deflection roller 3 or the bearing shaft 5 along the extension direction of the guide rail 2 to move in one direction, which increases the tension of the pulley 3 deflected flexible traction means Z leads. This allows so-called rope extensions or lots of flexible Automatically compensate for traction means Z by the elastic element 28 the tension of the flexible traction device Z keeps constant.

The elastic element 28 can do this, for example, on the one hand on a wall 27a of the guide rail side slot 27 and on the other hand pulley side on a sliding block 29 support the bearing shaft 5 the pulley 3 encompasses 9a ,

In the 10a and 10b are - as already in the 1a and 1b - An aggregate carrier 1 in the form of a through a support plate 10 formed door module carrier and a motor vehicle window lifter pre-assembled thereon, wherein in contrast to the arrangement of the 1a and 1b the pulleys 3o . 3u the window lifter and its flexible traction means Z respectively below the bottom surfaces 20 the two guide rails 2 are arranged while in the in the 1a and 1b shown embodiment - as well as in the case of the variants of the 2a to 9 - The flexible traction means Z above the bottom surfaces 20 the guide rails 2 runs. In other words, extends in the in the 1a to 9 shown embodiments, the flexible traction means Z respectively on the side facing away from the subframe of the bottom surface 20 a respective guide rail, while in the in the 10a and 10b shown arrangement, the flexible traction means Z between the subframe 1 , So in particular of the subframe forming carrier plate 10 , and the respective guide rail 2 , so in particular their bottom surface 20 , runs.

The 11a and 11b show in a section a variant of the arrangement of the 10a and 10b in the area of one of the pulleys 3 , It is clear that here is the floor area 20 the guide rail 2 such a distance from the subframe 1 - Transverse to the through the support plate 10 of the subframe 1 clamped surface - has that the flexible traction means Z in which between the subframe 1 and the guide rail 2 formed intermediate space can be accommodated.

Accordingly, there is no need for a larger step in the transition area 24 ' to the supernatant 25 the respective guide rail 2 , the support or storage of the pulley 3 serves by holding an annular receptacle 26 of the supernatant 25 a bearing axis 4 the pulley 3 absorbs and surrounds annular. At the supernatant 25 Rather, it may simply be a partial section of the floor area here 20 the guide rail 2 act.

In the 12a and 12b a modification of the preceding embodiments is shown, according to which a bearing pin formed by a physical bearing axis 104 the pulley 3 on her the supernatant 25 the guide rail 2 opposite side not on the subframe 1 but rather in a cup-shaped receptacle 116 a section 115 a parapet reinforcement extending along the inner door skin I 101 is included. Such a parapet reinforcement 101 serves to stiffen the inner door skin I in the region of the so-called door parapet, that is along a line that limits the door opening of a motor vehicle door down.

In this embodiment, accordingly, a respective guide rail with her the pulley 3 overlapping or supporting end portion over the associated edge 12 of the subframe 1 protrude, there for the second support or storage of the deflection roller 3 a section 115 the door parapet 101 is available.

The 13a and 13b show a further embodiment of the basis of the 12a and 12b explained type, the only difference is that for the storage of the guide roller 3 or more precisely the bearing axis formed by a bearing journal 4 at a section 115 the door parapet 101 Here, the bearing pin only annular enclosing passage 115 is provided instead of a cup-shaped receptacle. Accordingly, in which in the 13a and 13b illustrated embodiment of the door parapet 101 a storage and support of the pulley 3 only in the radial direction, while in the in the 12a and 12b arrangement shown in addition a support in the axial direction on the bottom surface of the pot 16 is possible.

Claims (35)

Motor vehicle window lifter for adjusting a window pane of a motor vehicle, having - an elongated guide rail, along which a driver to be connected to the window pane is longitudinally movably guided, - a stretched along a section along the guide rail flexible traction means which serves for transmission by means of a window lift drive generated adjusting forces on the driver to move it along the guide rail, and - at least one arranged on the guide rail deflecting element for deflecting the flexible traction means, so that this extends with a traction means along the guide rail, characterized in that the deflecting element ( 3 ) on both the guide rail ( 2 ) and in addition to another, of the guide rail ( 2 ) different tra component ( 1 . 101 ) is mounted and / or supported by a motor vehicle door. Motor vehicle window lifter according to claim 1, characterized in that the deflecting element as one on the guide rail ( 2 ) arranged rotatable pulley ( 3 ) formed on both the guide rail ( 2 ) and in addition to another, of the guide rail ( 2 ) different supporting component ( 1 . 101 ) is mounted and / or supported by a motor vehicle door. Motor vehicle window lifter according to claim 2, characterized in that the deflection roller ( 3 ) on the guide rail ( 2 ) or the load-bearing door component ( 1 . 101 ) is supported radially and / or supported Motor vehicle window lifter according to claim 2 or 3, characterized in that the deflection roller ( 3 ) on the guide rail ( 2 ) or the load-bearing door component ( 1 . 101 ) is axially supported and / or supported. Motor vehicle window lifter according to one of claims 2 to 4, characterized in that the deflection roller ( 3 ) an axis of rotation (A) of the deflection roller ( 3 ) defining bearing element ( 4 . 5 ) is assigned, via which the deflection roller ( 3 ) on the guide rail ( 2 ) and the load-bearing door component ( 1 . 101 ) is stored and / or supported. Motor vehicle window lifter according to claim 5, characterized in that the bearing element ( 4 . 5 ) is designed as a journal or bearing pin. Motor vehicle window lifter according to claim 5 or 6, characterized in that the bearing element ( 4 ) forms a physical axis around which the pulley ( 3 ) turns. Motor vehicle window lifter according to claim 7, characterized in that the bearing element ( 4 ) is arranged fixed in space, so that it is not together with the deflection roller ( 3 ) turns. Motor vehicle window lifter according to claim 8, characterized in that the bearing element ( 4 ) on the guide rail ( 2 ) and / or the load-bearing door component ( 1 . 101 ) is spatially fixed. Motor vehicle window lifter according to claim 9, characterized in that the bearing element ( 4 ) on the guide rail ( 2 ) and / or supporting door component ( 1 . 101 ) is integrally formed. Motor vehicle window lifter according to claim 9, characterized in that the bearing element ( 4 ) on the guide rail ( 2 ) and / or the load-bearing door component ( 1 . 101 ) is fixed by fastening means. Motor vehicle window lifter according to claim 11, characterized in that the bearing element ( 4 ) on the guide rail ( 2 ) and / or the load-bearing door component ( 1 . 101 ) is fixed cohesively. Motor vehicle window lifter according to one of claims 7 to 12, characterized in that the bearing element ( 4 ) after arrangement of the deflection roller ( 3 ) in its functional position on the guide rail ( 2 ) is inserted such that it is both on the guide rail ( 2 ) as well as on the load-bearing door component ( 1 . 101 ) is stored and / or supported. Motor vehicle window lifter according to claim 5 or 6, characterized in that the bearing element ( 5 ) as a rotationally fixed with the pulley ( 3 ) Connected bearing shaft is formed. Motor vehicle window lifter according to claim 14, characterized in that the bearing shaft ( 5 ) in one piece on the deflection roller ( 3 ) is formed. Motor vehicle window lifter according to claim 14, characterized in that the bearing shaft ( 5 ) as one of the pulley ( 3 ) separate element is set to this. Motor vehicle window lifter according to one of claims 14 to 16, characterized in that the bearing shaft ( 5 ) on the guide rail ( 2 ) and / or the load-bearing door component ( 1 . 101 ) is axially supported. Motor vehicle window lifter according to one of claims 14 to 17, characterized in that the bearing shaft ( 5 ) on the guide rail ( 2 ) and / or the load-bearing door component ( 1 . 101 ) is mounted radially. Motor vehicle window lifter according to one of claims 5 to 18, characterized in that the bearing element ( 4 . 5 ) on the guide rail ( 2 ) and / or the load-bearing door component ( 1 . 101 ) in an opening ( 16 . 116 . 117 . 26 . 27 ) is recorded. Motor vehicle window lifter according to claim 19, characterized in that the opening ( 16 . 116 ) is formed by a cup-shaped receptacle in which the bearing element ( 4 . 5 ) is recorded with one end. Motor vehicle window lifter according to one of claims 5 to 20, characterized in that the bearing element ( 5 ) for rope length compensation along the guide rail ( 2 ) limited mobility is arranged. Motor vehicle window lifter according to claim 21, characterized in that the bearing element ( 5 ) for rope length compensation along the extension direction of the guide rail ( 2 ) is limited mobility. Motor vehicle window lifter according to claim 21 or 22, characterized in that the bearing element ( 5 ) by means of a longitudinal guide ( 17 . 27 ) on the guide rail ( 2 ) or the load-bearing door component ( 1 . 101 ) is mounted longitudinally displaceable. Motor vehicle window lifter according to claim 19 or 20 and claim 23, characterized in that the longitudinal guide ( 17 . 27 ) is formed by a slot. Motor vehicle window lifter according to one of Claims 21 to 24, characterized in that the bearing element ( 5 ) against the bias of an elastic element ( 28 ) is limited movable, which in such a way on the bearing element ( 5 ) acts, that this has the tendency to tighten the flexible traction means (Z). Motor vehicle window lifter according to claim 1, characterized in that the deflecting element ( 3 ) is formed by a deflecting piece, which is arranged stationary such that it does not rotate during a movement of the flexible traction means (Z) during operation of the window regulator. Motor vehicle window lifter according to claim 26, characterized in that the deflecting piece of a bearing component ( 1 . 101 ) of the motor vehicle door is a separate element. Motor vehicle window lifter according to one of the preceding claims, characterized in that the load-bearing door component ( 1 . 101 ) is formed by an inner door skin, a unit carrier mountable on a door inner skin of a motor vehicle door or a door sill. Motor vehicle window lifter according to one of the preceding claims, characterized in that the deflection element between the guide rail ( 2 ) and the load-bearing door component ( 1 . 101 ) is arranged. Motor vehicle window regulator according to claim 5 or one of claims 6 to 29, as far as dependent on claim 5, characterized in that the bearing element ( 4 . 5 ) between the guide rail ( 2 ) and the load-bearing door component ( 1 . 101 ) is arranged. Motor vehicle window lifter according to one of the preceding claims, characterized in that the guide rail ( 2 ) a supernatant ( 25 ), which the deflection element ( 3 ) overlaps. Motor vehicle window lifter according to claim 29 and 31, characterized in that the projection ( 25 ) of the guide rail ( 2 ) the deflecting element ( 3 ) and thus a section ( 15 . 115 ) of the load-bearing door component ( 1 . 101 ) is arranged opposite, that the deflecting element ( 3 ) between the supernatant ( 25 ) and the section ( 15 . 115 ) of the load-bearing door component ( 1 . 101 ) is recorded. Motor vehicle window lifter according to claim 31 or 32, characterized in that the projection ( 25 ) of the guide rail ( 2 ) through one of a floor surface ( 20 ) of the guide rail ( 2 ) angled section of the guide rail ( 2 ) is formed. Motor vehicle window lifter according to claim 31 or 32, characterized in that a floor surface ( 20 ) of the guide rail ( 2 ) continuously into the supernatant ( 25 ) passes over. Motor vehicle window lifter according to claim 33 or 34, characterized in that the floor surface ( 20 ) of the guide rail ( 2 ) over an area of the guide rail ( 2 ), along which the associated driver (M) is longitudinally movably guided.