GB2497776A - Vehicle side window having a sliding window pane - Google Patents

Abstract

A window regulator assembly 1 for a motorized vehicle, comprising a first window pane 12 and a window bar 16 extending along a lateral edge of the first window pane 12. At least one guiding rail 22 to slidably displace the first window pane 12 between two end positions (Figures 13 and 15) and where the guiding rail 22 traverses the window bar 16 or a longitudinal imaginary extension thereof. Optionally a lateral shifting mechanism (30, Figure 10) to pivot or displace the pane 12 in a direction parallel to a surface normal of the pane 12 is provided. The guide rail 22 may be curved with an upper end 42 parallel to the lower edge of the pane 12, may be straight and extend at a downward angle (54, Figure 19) or may be parallel to the lower edge of the pane 12 (24a, Figures 17, 18). Preferably a second guide (26, 28, Figure 17) is provided to displace the pane in a perpendicular direction to the lower edge of pane 12.

Description

Window Regulator Assembly for a Quarter Light of a Motorized Vehicle

Description

Technical Field

The present invention relates to a window regulator assembly and in particular to a window regulator adapted to move a quarter tight of a door assembly of a passenger vehicle between an upper and a lower end position.

Background

Motorized vehicles and in particular passenger cars may comprise door assemblies featuring a rather large main window pane and a comparatively small additional window pane adjacently arranged to the main window pane and having a somewhat triangular-like shape. Such triangular-like windows or quarter light windows are known for front doors as well as for rear doors of passenger vehicles.

Typically, such quarter light windows fill the space between a substantially vertically oriented window bar and a slanted upper frame structure of the door assembly that corresponds with an A-pillar or C-pillar of the body of the vehicle. With frameless doors such quarter light windows directly cooperate with an A-or C-pillar of the vehicles body.

Document DE 10 2008 027 926 Al discloses a window regulator to lower a front triangular window of a frameless door. There, the triangular window is rigidly connected with a window bar that can be lowered or raised by means of an adjustment device.

However, with a quarter light window to be arranged behind a main window of a rear door, such a mechanism may not be applicable since the rear door at is rear end comprises an outer geometry and a door latch, which do not allow to simply lower the quarter light window along a direction substantially parallel to the orientation of the adjacently disposed window bar.

The present invention therefore aims to provide an improved window regulator assembly being universally adaptable to front-and rear door assemblies of passenger vehicles and which provides a displacement of a quarter light window.

The window regulator assembly further aims to maximize the total moveable window size of side door assemblies of passenger vehicles: Implementation of the window regulator assembly should further be cost-efficient in temis Of manufacturing an assembling.

Summary and preferred embodiments

For providing a solution to the above-mentioned drawbacks, a window regulator assembly for a motorized vehicle is presented comprising a first window pane and a window bar extending along a lateral edge of the first window pane. The window regulator assembly further comprises at least one guiding rail to slidably displace the first window pane between two end positions! preferably between an upper and a lower end position. The guiding rail further traverses the window bar or a longitudinal imaginary extension thereof. In other words, by way of the guiding rail, the first window pane can be displaced and moved in a direction having at least a component extending in a direction perpendicular to the elongation of the window bar.

Hence, the guiding rail provides a sideward directed movement of the first window pane. Preferably and starting from an upper end position, the first window pane can be displaced and moved by way of the guiding rail in a combined sideward and downward directed movement. In this context, a sideward movement means a displacement of the first window pane in a plane substantially overlapping with the first window pane, such that a lateral edge of the first window pane acts as a leading edge facing towards the direction of movement, especially when lowering the first window pane.

The window bar typically divides the window arrangement of a side door assembly of a motorized vehicle into a first window pane and a second window pane adjoining two opposite sides of the window bar located therebetween. The window bar typically extends in a substantially vertical orientation, hence along the vertical vehicle axis (z). The guiding rail, which is arranged inside a door or window channel below a belt line of the door assembly typically extends at least with a directional component in a horizontal direction, e.g. substantially along the vehicle's longitudinal axis (x).

Jo Since the window bar typically extends in the plane of an upper doorframe and since the guiding rail is typically arranged below a belt line of the vehicle door, guiding rail and window bar do normally not overlap when the window pane is in its upper end position. In such configurations, the guiding rail for the first window pane traverses a lower imaginary longitudinal extension of the window bar.

In the present context, the term traversing" does not mean, that the window bar or its imaginary extension physically crosses and gets in contact with the guiding rail. A traversing arrangement of window bar or its imaginary extension with the guiding rail means an overlapping configuration of guiding rail and window bar or its imaginary extension when looking at the window regulator assembly along a vehicle's transverse axis (y). In any case, guiding rail and window bar extend non-parallel with respect to each other and may each extend in planes, each of which coinciding with the vertical and longitudinal vehicle axis but which are separated from each other in the vehicle's transverse direction (y).

By means of the horizontal or traversing arrangement of the guiding rail, the first window pane can be moved in a horizontal direction, e.g. along a window channel until it reaches a position, in which the first window pane can be lowered along the vertical vehicle axis. This way, the window regulator assembly is adapted to lower and to raise a first window pane being designed as a quarter light arranged near a rear portion or a front portion of a vehicle door assembly.

According to a preferred embodiment, the window regulator assembly further comprises a lateral shifting mechanism, which is adapted to displace or to pivot the first window pane in a direction substantially parallel to the surface normal of the window pane. The lateral shifting mechanism is particularly adapted to displace or to pivot the first window pane in the direction of the vehicle's transverse axis (y). This way, the first window pane can be transferred into a plane extending parallel but laterally offset to a main or second window pane of a door assembly. By way of the lateral shifting, the first window pane can be displaced and positioned in an overlapping configuration with a second window pane to be raised and lowered, e.g. by way of a supplemental or conventional window regulator assembly.

It is of further benefit, when according to another embodiment the first window pane is only pivotabte and/or shiftable by the lateral shifting mechanism, when the first window pane is an upper end position. This way, a protection against collision with another window pane can be provided. Hence, a displacement along the guiding rail is only possible and is released when the first window pane has been laterally shifted compared to its upper end position, in which the first window pane is arranged in a common plane with and adjacent to the second window pane.

In a further embodiment, the lateral shifting mechanism comprises a first slider and a second slider, each of which being slidably arranged on the guiding rail at a longitudinal distance from each other. Additionally, the first slider is interconnected with a first pivot element and the second slider is interconnected with a second pivot element. The opposite ends of first and second pivot element, which are not interconnected with the first or second slider, respectively, are mutually and pivotally interconnected with a common carrier of the first window pane. The window pane is substantially supported and mounted on said carrier, which by way of the pivot elements and the two sliders can be displaced in a direction perpendicular to the elongation of the guiding rail, typically along the vehicle's transverse axis (y).

In effect, the carrier may be coupled with the guiding rail by way of a double-hinged lateral shifting mechanism, wherein the guiding rail, first and second pivot elements and the carrier of the first window pane may be mutually arranged in a trapezoidal-like way. When activated, e.g. at the beginning of a movement of the first window pane, the second slider may be moved away from the first slider, thereby inducing a laterally directed pivot motion of first and second pivot elements.

As a consequence, the carrier of the first window pane can be shifted perpendicular towards and away from the guiding rail in an orientation substantially parallel with the guiding rail.

The lateral shifting mechanism may be further equipped with some kind of interlock mechanism, which serves to keep the carrier of the first window close to the guiding rail during a displacement along said guiding rail.

In still another embodiment, the guiding rail comprises an arc shape and extends with an upper end substantially parallel to a lower edge of the first window pane. The guiding rail is arc-shaped or bended in a plane parallel to the first window pane. Preferably, the guiding rail extends along a plane substantially defined by the longitudinal and vertical axis of the vehicle (x, z). Near an upper end, which corresponds with the upper end position of the first window pane, the guiding rail extends substantially parallel to the lower edge of the first window pane or parallel to the vehicle's longitudinal axis (x) or parallel to the belt line of the door assembly.

The opposite end of the bended guiding rail is located well below the belt line of the door assembly as well as below the upper end of the guiding rail.

Depending on the slope and curvature of the guiding rail, the first window pane when moving along the guiding rail, becomes subject to a kind of combined transverse and pivoting motion. By way of a bended or arc-shaped guiding rail, a respective cut out in the window channel, which is necessary for the transverse movement of the first window pane can be effectively minimized.

In an alternative embodiment, the guiding rail comprises a substantially straight but elongated shape and extends downward at an angle with respect to the lower edge of the first window pane. Here, the lower end of the guiding rail is separated from its upper end by a distance, which is at least equal to or larger than the vertical extension of the first window pane. In this embodiment, the first window pane is to be displaced along an inclined but rather straight guiding rail.

According to a further alternative embodiment, the guiding rail extends substantially parallel to the lower edge of the first window pane. With such an embodiment, the first window pane is to be displaced in a substantial horizontal direction only until it reaches a position, in which the first window pane can be freely lowered arid raised.

Here, it is of further benefit, when the window regulator assembly comprises at least one additional, hence at least a second guiding rail to displace the first window pane in a downward pointing direction, e.g. substantially perpendicular to the lower edge of the first window pane. By means of the guiding rail and a second guiding rail, the first window pane can be sequentially displaced io according to a two-or three-step movement. Starting from an upper end position, the first window pane may be first laterally shifted, it may then become subject to a sideward movement prior to become lowered into a window channel of a door assembly.

Also here, the second guiding rail does not necessarily have to extend strictly perpendicular to the lower edge of the first window pane. It is also conceivable, that the at least second guiding rail extends at an inclination with regard to the lower edge of the window pane or at an angle with respect to the vertical vehicle axis.

In a further preferred embodiment, the window bar separates the first window pane from a second window pane, the latter of which being slidably displaceable between two end positions along the window bar. The second window pane, which may be also denoted as main window may be raised and towered with the present or with an additional window regulator assembly in a rather conventional manner.

It is of further benefit, when the window bar, which separates first and second window panes provides a slideway for the second window pane. Hence, a lateral edge of the second window pane is guided by the window bar. The window bar itself may be permanently fixed to the lateral edge of the first window pane. It may be further mechanically coupled with the carrier of the first window pane.

Hence, the window bar is displaceable together with the first window pane and may provide mechanical support to the first window pane.

In a further preferred embodiment, the window regulator assembly also comprises a drive mechanism which is adapted to displace first and second window panes sequentially. Hence, a displacement or movement of the first window pane is effectively blocked and inhibited as long as the second window pane has not reached a lower end position. Accordingly the second window pane may be interlocked in its lower end position until the first window pane reaches its upper end position, in which the window bar extends substantially parallel to a corresponding lateral edge of the second window pane.

By having a drive mechanism enforcing a sequentia' dispLacement of first and second window panes, mutual collisions of first and second window panes during a respective movement can be effectively prevente& In a further aspect, the first window pane and the second window pane are u arranged in an at least partially overlapping configuration when reaching a lower end position. In this context, an overlapping configuration means a collision-free storage position of first and second window panes, wherein the two window panes are arranged substantially parallel to each other but laterally offset, i.e. in transverse vehicle direction (y).

It is of further benefit and according to another preferred embodiment when the first window pane is designed as a quarter light window of a rear side door of a passenger vehicle. With respect to the driving direction of the vehicle, the first window pane is arranged behind the second window pane. Typically, the door assembly carrying both, first and second window panes features a cutout or an undercutting below a door latch, which makes it impossible to lower a quarter light window by means of a conventional window regulator assembly. By means of the present window reguLator assembly and by means of its at least partially horizontally aligned guiding rail, the quarter light window can be displaced in a combined, simultaneous or sequential sideward and vertically directed way.

In a further but independent aspect, also a door assembly for a motorized vehicle is provided comprising a first window pane and a second window pane, wherein first and second window panes are adjacently arranged with respect to

-B-

each other. First and second window panes are further separated by a window bar and the door assembly also comprises a window regulator assembly as described above adapted to provide a lowering and raising of the first window pane, which is typically designed as a quarter light window.

Moreover and according to another independent aspect, also a motorized vehicle, in particular a passenger vehicle is provided comprising at least one window regulator assembly as described above.

Brief Description of the Drawings

In the following, preferred embodiments will be described by making reference to the drawings, in which: Fig. 1 shows a perspective illustration of a rear door assembly of a passenger vehicle in an initial configuration, Fig. 2 shows the door assembly according to Fig. 1 with a partially lowered main window, Fig. 3 shows the door assembly with a completely lower main window, Fig. 4 illustrates the door assembly with a quarter light window being laterally shifted or pivoted, Fig. 5 is illustrative of a partially lowered quarter light window, Fig. 6 shows a further step of lowering the quarter light window and Fig. 7 shows the door assembly with the quarter light window reaching its lower end position, Fig. S shows a lid for closing a window channel when both window panes have reached their lower end positions, Fig. 9 shows a perspective illustration of a lateral shifting mechanism in an initial configuration, Fig. 10 schematically shows the lateral shifting mechanism according to Fig. 9as s seen from the top, Fig. 11 shows the lateral shifting mechanism in an elongated configuration and Fig. 12 is schematically illustrative of the lateral shifting mechanism according to Fig. 11, Fig. 13 shows another perspective illustration of the door assembly according to Fig. 1 also illustrating a bended or arc-shaped guiding rail, Fig. 14 shows the door assembly according to Fig. 13 with a partially lowered quarter light window and Fig. 15 shows the door assembly according to Figs. 13 and 14 with the first or quarter light window in its lower end position, Fig. 16 illustrates another embodiment of a window regulator assembly featuring a horizontally oriented guiding rail in an initial configuration, Fig. 17 is illustrative of an intermediate position of the first window pane, Fig. 18 shows the window regulator assembly according to Figs. 16 and 17 with the first window pane in its lower end position and Fig. 19 shows another embodiment of a straight but inclined guiding rail.

Detailed Description

In Fig. 1, a rear side door assembly 10 of a passenger vehicle is illustrated.

The door assembly 10 as shown from the inside comprises a first window pane 12 and a second window pane 14, wherein the first window pane is designed as a quarter light and is positioned above a door latch 18 of the door assembly 10. The second window pane 14 as the main window of the door assembly 10 can be raised and lowered in a rather conventional way, along a window bar 16 which separates the two window panes 12, 14. The window bar 16 serves as a kind of a slideway for the substantially vertically directed displacement of the second window pane 14, which in the illustration according to Fig. 1 is illustrated in its upper end position 5. In an opposite direction, facing to the rear of the door assembly 10, the window bar 16 embraces and stabilizes a lateral edge 13 of the first window pane 12.

Upon activation of a window regulator assembly, the second window pane 14 is lowered as can be seen in the sketch of Fig. 2, in which said second window pane 14 reaches an intermediate position 6. When the second window pane 14 has reached its lower end position 7 as shown in Figs. 3 and 14 for instance, the first window pane 12 is still in its upper end position 1.

As further indicated in Fig. 4, a displacement of the first window pane 12 is initiated by means of laterally shifting the entire window pane 12 in vehicle transverse direction (y). In the illustration according to Fig. 4, the first window pane 12 may either be displaced laterally inwardly towards the inner lining of the door assembly by way of a translational movement as indicated by the straight arrows point in y.-direction. However, it is also conceivable to pivot the first window pane 12 with respect to a rear axis 46 extending substantially parallel to the window bar 16.

In either way the first window pane 12 is laterally shifted or pivoted into a plane substantially parallel to the second window pane 14 but laterally offset therefrom. Starting from such an intermediate position 2 as shown in Fig. 5, the window regulator assembly as Ear instance shown in detail in Fig. 13 can be activated to displace the first window pane 12 in a combined forward and downward directed movement. As indicated in Fig. 6, the first window pane 12 can be lowered by way of guidance along a slanted or bended guiding rail 22, as for instance shown in Figs. 13 to 15. In the illustration of Fig. 6, the first window pane 12 is in an intermediate position 3, in which the first window pane 12 is partially inserted into the window channel 20 and in which the window pane 12 has separated from a rear -11 -edge 19 of the window channel 20. The configuration and intermediate position as shown in the secquence of Figs. 6 to 8 may also be realized by way of a guiding rail 54 as shown in Fig. 19.

In Fig. 7, the first window pane 12 has almost reached its lower end position 4. In Fig. 8, the window channel 20 extending comparatively wide in transverse direction (y) can then be closed by way of a foldable, slidable or

pivotable lid 21.

to In Figs. 9 and 10, an example of a lateral shifting mechanism 30 is illustrated, wherein a guiding rail 24 for the first window pane 12 at least near its upper end extends substantially in horizontal direction, e.g. along the vehicle's longitudinal axis (x). The guiding rail 24 of substantially straight and elongated shape engages with two sliders, namely with a first slider 36 and with a second slider 38, each of which being slidably displaceable along the guiding rail 24. The sliders 36, 38 are further separated from each other. The first slider 36 is pivotally connected with a first pivot element 32 and the second slider 38 is pivotelly connected with a second pivot element 34.

With their opposite ends, facing away from respective first and second sliders 36, 38, said pivot elements 32, 40 are interconnected by means of a carrier being mechanically coupled or being directly connected with the first window pane 12 and/or with the window bar 16, which may be permanently connected with the first window pane 12. As indicated in the schematic illustration according to Fig. 10, the pivot elements 32, 34 may extend in an inclined way with respect to the elongation of the guiding rail 24. Guiding rail 24 and carrier 40 may extend substantially parallel with respect to each other.

Due to the double-hinged arrangement of the sliders 36, 38 and the carrier 40, mutual longitudinal displacement of first and second sliders 36, 38 induces a lateral offset movement of the carrier 40 with respect to the guiding rail 24. Hence, by increasing the distance between the sliders 36, 38, the pivot elements 32, 34 will align along the guiding rail 24, thereby displacing the carrier 40 and the first window pane in transverse direction KY) towards the guiding rail and out of the plane defined by the second window pane 14.

As soon as the first window pane 12 has been laterally displaced towards S the guiding rail 24, the window pane 12 and its carrier 40 can be released to be displaced along the guiding rail 24.

As becomes apparent from Figs. 9 and 11 the window bar 16 extending along a lateral edge 13 of the first window pane 12 extends non-parallel to the io guiding rail 24, Moreover, a longitudinal imaginary extension 16a of the window bar iBis traversed by the guiding rail 24. As a consequence, the window pane 12 can be displaced and moved along the guiding rail 24 with the window bar 16 as a leading edge of the movement.

As further illustrated in Figs. 13 and 14, the guiding rail 22 may comprise a downward bended or arc-shaped geometry. As indicated in Fig. 13, the first window pane 12 is arranged in a common plane with the second window pane 14. There, a lateral distance between the guiding rail 22 and the carrier 40 is traversed by the two pivot elements 32, 34. Moreover, the upper end 42 of the guiding rail 22 substantially extends in horizontal direction, e.g. along the longitudinal axis (x) of the vehicle.

After the second window pane 14 has reached its lower end position 7 as indicated in Fig. 14, the first window pane 12 can be laterally shifted towards the interior of the vehicle by folding together the pivot elements 32, 34. As a consequence, the carrier 40 and the first window pane 12 become laterally shifted towards the guiding rail 22. The sliders 36, 38 may be further interconnected with a drive 52 of a drive mechanism 50 in order to displace the sliders 36, 38 along the guiding rail 22. It is particularly intended, that at least one of first or second sliders 36, 38 is operably connected with the drive 52, e.g. by means of a control cable, a spindle drive or other force transmitting interconnections which may extend along the guiding rail 22. -13-

As further illustrated in Figs. 13 to 15, a lower end 44 of the guiding rail 22 is oriented in an inclined way compared to the orientation of the upper end 42 of the guiding rail 22. consequently, the window pane 12 experiences a combined translational and pivoting motion during its displacement between upper end position 1 and lower end position 4 as indicated in Fig. 15.

The further embodiment as illustrated in Figs. 16 to 18 differs from the embodiment shown in Fig. 13 to 15 in that the guiding rail 24 is arranged substantially horizontally, e.g. substantially parallel to a lower edge 11 of the first to window pane 12. There, after laterally shifting the first window pane 12 towards the guiding rail 24, the window pane 12 can be translationally displaced along the guiding rail 24 from a rear section 24a towards a front section 24b. When reaching the front section 24b, said front section 24b together with the window pane 12 can be lowered along additional, hence second guiding rails 26, 28 to reach the end position 4 as indicated in Fig. 18.

Here, the second guiding rail 24 is divided into an immobile and fixed rear section 24a and into a mobile front section 24b, which is translationally displaceable along the two parallely and substantially vertically oriented guiding rails 26, 28. With the embodiment according to Figs. 16 to 18, the first window pane 12 does not exhibit a combined longitudinal and vertical displacement but a substantially horizontally directed displacement to reach an intermediate position 3 as indicated in Fig. 17 which is followed by a substantially vertically oriented displacement to reach the end position 4 as depicted in Fig. 18.

Figure 19 finally illustrates another embodiment of a guiding rail 54, being rather straight shape and extending in an inclined way at an angle with respect to the lower edge 11 of the first window pane 12. Generally, the mechanism to move the window pane 12 between an upper and a lower end position generally resembles the one as already illustrated and described in Figs. 13-15. However, in the embodiment as shown in Fig. 19, the first window pane 12 is only subject to a trans'ational movement and displacement along the guiding rail 54.

While at least one exemplary embodiment has been presented in the foregoing summary and detailed description, it should be appreciated that a vast number of variations exists. It should also be appreciated that the exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration in any way. Rather, the foregoing summary and detailed description will provide those skilled in the art with a convenient roadmap for implementing at least one exemplary embodiment, it being understood, that various changes may be made in the function and arrangement of elements described in an exemplary embodiment without departing from the scope as set forth in the appended claims and their legal equivalence.

Reference Numerals 1 end position 2 intermediate position 3 intermediate position 4 end position end position 6 intermediate position 7 end position door assembly 11 lower edge 12 first window pane 13 lateral edge 14 second window pane 16 window bar 16a extension 18 door latch 19 rear edge window channel 21 lid 22 guiding rail 24 guiding rail 24a rear section 24b front section 26 guiding rail 28 guiding rail lateral shifting mechanism 32 pivot element 34 pivot element 36 slider 38 slider carrier 42 upper end 44 lower end 46 pivot axis drive mechanism 52 drive 54 guiding rail

Claims (1)

1. <claim-text>Claims 1. A window regulator assembly for a motorized vehicle, comprising: -a first window pane (12) and -a window bar (16) extending along a lateral edge (13) of the first windowpane(12) -at least one guiding rail (22; 24: 54) to slidably displace the first window pane (12) between two end positions (1, 4), wherein the guiding rail (22; 24; 54) traverses the window bar (16) or a longitudinal imaginary extension (16a) thereof.</claim-text> <claim-text>2. The window regulator assembly according to claim 1, further comprising a lateral shifting mechanism (30) adapted to displace or to pivot the first window pane (12) in a direction substantially parallel to the surface normal of the window pane (12).</claim-text> <claim-text>3. The window regulator assembly according to claim 2, wherein first window pane (12) is only pivotable and/or shiftable by the lateral shifting mechanism (30) when the first window pane (12) is in an upper end position (1).</claim-text> <claim-text>4. The window regulator assembly according to claim 3, wherein the lateral shifting mechanism (30) comprises a first slider (36) and a second slider (38) slidably arranged on the guiding rail (22; 24; 54) at a longitudinal distance from each other, wherein the first slider (36) is interconnected with a first pivot element (32), the second slider (38) is interconnected with a second pivot element (34) and wherein first and second pivot elements (32; 34) are interconnected with a carrier (40) of the first window pane (12). -18-</claim-text> <claim-text>5. The window regulator assembly according to any one of the preceding claims, wherein the guiding rail (22) comprises an arch shape and extends with an upper end (42) substantially parallel to a lower edge (11) of the first window pane (12).</claim-text> <claim-text>6. The window regulator assembly according to any one of the preceding claims ito 4, wherein the guiding rail (54) comprises a substantially straight and elongated shape and extends downward at an angle with respect to the lower edge of the first window pane (12).</claim-text> <claim-text>7. The window regulator assembly according to any one of the preceding claims ito 4, wherein the guiding rail (24) extends substantially parallel to the lower edge (11) of the first window pane (12).</claim-text> <claim-text>8. The window regulator assembly according to claim 7, further comprising at least a second guiding rail (26, 28) to displace the first window pane (12) in a direction substantially perpendicular to the lower edge (ii) of the first window pane (12).</claim-text> <claim-text>9 The window regulator assembly according to any one of the preceding claims, wherein the window bar (16) separates the first window pane (12) from a second window pane (14) being slidably displaceable between two end positions (5, 7) along the window bar (16).</claim-text> <claim-text>10. The window regulator assembly according to claim 9, wherein the window bar (12) provides a slideway for the second window pane (14).ii The window regulator assembly according to any one of the preceding claims, further comprising drive mechanism (50) adapted to displace first and second window panes (12, 14) sequentially.12. The window regulator assembly according to any one of the preceding claims, wherein the first window pane (12) and the second window pane (14) are arranged in an at least partially overlapping configuration when reaching a lower end position (4, 7).13. The window regulator assembly according to any one of the preceding claims, wherein the first window pane (12) is designed as a quarter light S window of a rear side door assembly (10) of a passenger vehicle.14. A door assembly for a motorized vehicle comprising a first window pane (12) and a second window pane (14) adjacently arranged with respect to each other and separated by a window bar (16) and comprising a window regulator assembly according to any one of the preceding claims.15. A motorized vehicle comprising at least one window regulator assembly according to any one of the preceding claims.</claim-text>