DE102022204183A1 - Window regulator system for a window pane of a motor vehicle - Google Patents

Abstract

The invention relates to a window regulator system (6) for a window pane (4) of a motor vehicle, comprising a window regulator (2) with a servomotor (8) and with an actuating mechanism (10) as well as with a driver (14) for connection to the window pane (4 ), and an interior trim part (30), which in the assembled state forms part of an interior trim (26) of a vehicle interior, the window regulator (2) being pre-assembled on a rear side (34) of the interior trim part (30) facing away from the vehicle interior, and wherein the interior trim part (30) has a seal (40) running around the edge as a wet/dry room separation.

Description

The invention relates to a window regulator system for a window pane of a motor vehicle, comprising a window regulator with a drive motor and with an adjusting mechanism and with a driver for connection to the vehicle window pane. The invention further relates to a use of such a window lift system for a rear side window of a motor vehicle.

Nowadays, movable vehicle windows are usually moved between a closed position and an open position by electrically or electric motor-operated adjusting devices as (vehicle) window regulators. Such a window regulator usually includes an (electric) servomotor and an actuating mechanism that connects the servomotor to the window pane, which means that it is coupled in terms of force transmission technology and which is assigned to a motor vehicle door or a motor vehicle body.

Cable window lifters have, in particular, a cable pull mechanism as an adjusting mechanism for raising and lowering the window pane. Such a cable pull mechanism typically has a cable pull, which is guided on the one hand in a cable drum that winds and unwinds it and, on the other hand, with multiple deflections to at least one driver and is fixed there.

To guide the window pane, in a vehicle door, for example, on a front and/or rear side window edge, it is provided with at least one driver as a window guide element, which is movable along the vehicle height (Z direction) in at least one guide rail of a guide device of the adjusting mechanism, which acts as an adjustment or guide track ) are guided. Due to the movable guide along the guide rail, such drivers are often also referred to as rail sliders.

Such drivers are usually arranged in the area of a lower edge of the window pane or in the area of a side edge of the window pane. Such a driver is connected and adjustable, for example, via a flexible traction means of the adjusting mechanism, for example in the form of a cable (pulling rope), in order to move the window pane along the adjustment path between the closed position and the open position.

For assembly in a vehicle side door, the window regulator is often pre-assembled as part of a door module on an assembly support, which can be placed on a corresponding assembly opening in the door frame in order to cover it, in particular in order to achieve a wet room/dry room separation of the vehicle door.

However, the use of a pre-assembled door module is disadvantageously difficult in some applications. Particularly in the area of the rigid motor vehicle body, for example in the case of a rear side window behind the last vehicle door or behind the C-pillar, it is often necessary due to the wheel arch to have the necessary parts and components, such as the window regulator, possibly an assembly support, window guides, window pane, panels, etc. to be installed individually.

Due to the complex assembly, a window regulator is often not installed, so such rear side windows are usually firmly glued or designed as vent windows. Window regulator installation is also difficult for rear windows, so rear windows are typically designed as fixed glazing.

To improve the driving experience, some motor vehicles require a so-called “California mode”, in which all side windows, including the rear side windows, and the rear window are designed to be retractable.

However, due to the individual assembly of the window regulator components on the rear side windows and the rear window, this requires a lot of time and money for the original equipment manufacturer (OEM).

The invention is based on the object of specifying a particularly suitable window lift system for a window pane of a motor vehicle. In particular, the aim is to enable the window lift system to be installed as simply and with as little effort as possible. The invention is also based on the object of specifying a particularly suitable use of such a window lift system.

With regard to the window lift system, the task is solved according to the invention with the features of claim 1 and with regard to use with the features of claim 10. Advantageous refinements and further developments are the subject of the subclaims. The advantages and refinements mentioned with regard to the window regulator system can also be transferred to its use and vice versa.

The window lift system according to the invention is intended for a window pane of a motor vehicle, for example a rear side window, and is suitable and set up for this purpose. The window Lifter system has a (vehicle) window lifter with a servomotor (window lifter motor) and with an actuating mechanism as well as a driver for connection to the window pane. The adjusting mechanism is designed in particular as a cable pull mechanism. In other words, the window regulator is designed in particular as a cable window regulator (cable window regulator). The cable pull window lifter or the cable pull mechanism has a cable pull, which is guided on the one hand in a cable drum that winds and unwinds it and on the other hand with multiple deflection via cable deflection rollers to the at least one driver and is fixed there.

The window regulator system also has an interior trim part (cladding unit, partial interior trim), which, in the assembled state, at least partially forms part of an interior trim of a vehicle interior. In other words, the interior trim part has a visible surface of the vehicle interior. Based on the installed or assembled state, the interior trim part has an inside (front) facing the vehicle interior and an outside (back) facing away from the vehicle interior. The window regulator is pre-assembled on the outside or back of the interior trim part. The interior lining part also has a seal running around the edge as a wet/dry room separation, which is arranged, for example, on the front and/or back. This creates a particularly suitable window lift system.

Because the window regulator is pre-assembled on the interior trim part, the window regulator system is designed as a pre-assembly assembly, i.e. as a modular system (window regulator module) or as a delivery unit. This ensures a particularly simple and effort-reduced installation of the window regulator system in the motor vehicle.

The basic idea of the invention is based on a combination of the (vehicle) interior trim, the window regulator and, if necessary, the window pane in such a way that the functions of the window regulator can be separated and integrated into the interior trim (or the interior trim part) and, if necessary, into other components. The interior trim part is thus effectively used as a functional or aggregate support.

The window regulator can, for example, be designed as a track-controlled window regulator with at least one guide rail. In a preferred embodiment, however, the window regulator is designed without a rail, i.e. without an integrated guide rail for the driver. The window regulator is designed in such a way that there is no need for separate guide rails for the window regulator and the drive, in the form of a cable actuator (window regulator motor with cable drum), is relocated to the edge area, close to a window guide in the interior paneling.

In a suitable embodiment, the interior trim part has a frame part with a window guide for receiving an edge of the window pane. The frame part forms a window or pane opening, the window pane being reversibly movable by means of the window regulator between a closed position, in which the window pane completely covers or closes the pane opening, and an open position, in which the window pane exposes the pane opening. The frame part has two window guides for a front and rear edge of the window pane. In other words, the window pane is guided on both sides in the pane guides of the frame part. The disk guide is designed, for example, as a groove with an approximately U-shaped cross section, which surrounds the disk edge on three sides. It is conceivable here, for example, that the disc guide is designed as two half-parts with an L-shaped cross-section, one half-part being formed by the frame part and the second half-part by a body of the motor vehicle, so that a U-shaped disc guide is only realized in the assembled state is.

In an expedient development, the frame part has at least one mounting flange for screw fastening to a motor vehicle bodyshell. Preferably, for example, four mounting flanges are provided as fastening points, particularly in the area of the side window guides, which are joined to the shell when installed. The fastening points or mounting flanges are preferably covered by a frame cladding and are therefore not visually visible when installed.

An additional or further aspect of the invention provides that the driver is guided on the disk guide. This means that with the railless cable window regulator in particular, the side window guide is effectively used as a guide rail. The window pane is therefore not guided by the window regulator, but only by the pane guide. The functions of the window regulator are therefore divided into different components. The window pane is guided by the pane guides and the movement of the window pane is shifted to the cladding area.

In a preferred embodiment, the driver is cohesively joined to the window pane, for example glued. The window pane is therefore part of the pre-assembled window regulator system, at least in this training. This creates a particularly simple and effort-reduced connection or coupling between the driver and the window pane. A “material connection” or a “cohesive connection” between at least two interconnected parts is understood here and below in particular to mean that the interconnected parts at their contact surfaces through material union or networking (for example due to atomic or molecular binding forces), if necessary under effect of an additive are held together.

In an advantageous embodiment, the interior trim part is an injection molded part, onto which functional elements of the window regulator are integrally formed, i.e. in one piece or monolithically.

The window regulator system is intended in particular for use in the rear or trunk area of the motor vehicle. Due to the interior paneling located in the trunk, there are only minor demands on the surface quality of the interior paneling part interior, since said surface is in a shadow zone or is covered by separate paneling attachments.

This means that sink marks caused by molded, molded functional elements, such as screw-on domes, pulley holders, etc. are permitted. If the surface design is appropriate (e.g. grain, ribbing on the wet room side...), the window regulator system can also be used without additional surface cladding for the interior trim part (e.g. for a basic equipment variant).

Preferably, the pulley receptacles are not, as usual, part of the window regulator or a door module, but rather an integral part of the interior trim part or the trim unit. As far as the required cable deflection is concerned, the window regulator is therefore part of the partial interior paneling. Alternatively, the rope pulleys can also be attached directly to the pulley guide.

The connection of the servomotor can also be integrated into the interior trim part using molded functional elements, such as holding contours or screw-on domes.

In an expedient further development, a parapet reinforcement is integrated into the interior cladding part. Particularly in the version as an injection molded part, reinforcing elements, such as a parapet reinforcement, can be integrated into the interior cladding part as insert parts.

The interior trim part can be made from a mechanically stable plastic material, in particular from a glass fiber reinforced plastic. However, using the structural approach, reinforcing elements (e.g. parapet reinforcement) can also be replaced or integrated if necessary. This advantageously reduces the mechanical demands on the material of the interior trim part. It is therefore possible to make the interior trim part, for example, from a plastic without additional glass fiber reinforcement. Alternative or sustainable materials can also be used. To improve the acoustic and thermal properties, the interior trim part can also be made from non-woven materials.

In an expedient embodiment, a front side of the interior trim part that faces the vehicle interior in the assembled state forms a rear wall of an interior trim recess. The interior trim part therefore offers, on the one hand, the base or rear wall of storage options (e.g. first aid kit, flap, tub, bass speaker, etc.) and, on the other hand, the integration of the window regulator, for example for the side window in the rear.

The interior trim part, for example, offers the basic version, which can be individually equipped using a modular system with a standardized interface: first aid kit, warning triangle, holding net, pocket insert (with/without flap), trough insert, bass loudspeaker insert, etc. The interior trim part is therefore preferably a basic support for special equipment variants. Furthermore, hooks can be formed in the functional area of the front, for example, which can serve as holders for shopping bags, etc.

Further components can also be integrated into the interior trim part, e.g. loading area lighting, drive for loading area cover, zone modules, sensors for loading area monitoring, window power, etc.

In principle, the window lift system described above can be applied to sliding doors, tailgates, or the like. In general, the window regulator system described above is suitable for areas in which a separate window guide can be implemented and the optical requirements of a cladding The sub-area allows certain restrictions.

In a preferred application, the window lift system described above is used for a rear side window of a motor vehicle. A rear side window is understood to mean a side window pane in the area of the rear of the vehicle or trunk, i.e. a window pane behind the rearmost side door or behind the C-pillar. The window regulator system is therefore not used for a vehicle door, but rather within a rigid body area.

Below, information regarding the spatial directions is also given in particular in a coordinate system of the motor vehicle (vehicle coordinate system) with regard to an exemplary installation situation of the window regulator system in a side body. The abscissa axis (X-axis, .

Thanks to the integrative structure, the window guide of the retractable rear side window in the third row and also the rear side window itself can be designed as a delivery unit in such a way that the window module or window lift system can be easily installed in the Y direction.

By installing it in the area of a rigid body, the mechanical demands on the window regulator are significantly lower, since, for example, there is no door slamming and a reduced number of cycles is expected. This simplifies or enables the integration of the window regulator on the interior trim part.

• 1 einen Fensterheber eines Fensterhebersystems,
• 2 ausschnittsweise eine Innenverkleidung eines Kofferraums,
• 3 das Fensterhebersystem in einer ersten Ausführungsform mit Blick auf eine Vorderseite,
• 4 das Fensterhebersystem in der zweiten Ausführungsform mit Blick auf eine Rückseite,
• 5 das Fensterhebersystem in einer dritten Ausführungsform, und
• 6 das Fensterhebersystem in einer vierten Ausführungsform.

Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. It shows in schematic and simplified representations:

• 1 a window regulator of a window regulator system,
• 2 a section of an interior lining of a trunk,
• 3 the window lift system in a first embodiment with a view of a front side,
• 4 the window regulator system in the second embodiment with a view of a rear side,
• 5 the window lift system in a third embodiment, and
• 6 the window lift system in a fourth embodiment.

Corresponding parts and sizes are always provided with the same reference numbers in all figures.

In the 1 an electric window regulator 2 is shown in a simplified and schematic representation as an adjusting device for a (vehicle) window pane 4 of a motor vehicle. The window regulator 2 is part of a window regulator system 6 ( 3 ). The window pane 4 is, for example, a rear side window, with the window regulator 2 or the window regulator system 6 being installed in a body of the motor vehicle.

The window regulator 2 has a servomotor (window regulator motor) 8, which acts on the window pane 4 by means of an actuating mechanism 10. The adjusting mechanism 10 has a guide rail 12 and a driver 14 coupled to the window pane 4.

In the exemplary embodiment shown, the window regulator 2 is designed as a simply guided cable window regulator (cable window regulator). The adjusting mechanism 10 has a cable pull 16 in addition to the guide rail 12.

The servomotor 8 of the window regulator 2 drives a cable drum 20 of the servo mechanism 10 via a worm or spur gear 18. A pull cable of the cable pull 16 is arranged on the cable drum 20 in such a way that when the cable drum 20 rotates caused by the gear 18, the pull cable is wound and unwound.

Attached to the guide rail 12 are an upper (rope) deflection pulley or pulley 22 and a lower pulley 24, which are arranged on the opposite (rail) end faces. The pull cable of the cable pull 16 is guided around the cable deflection rollers 22, 24.

When the servomotor 8 is actuated, the window pane 4 is moved to its (pane) position P. The window pane 4 can be moved reversibly between a closed position S, which represents the highest possible position P, and an open position O, which represents the lowest possible position P. In these positions S and O the window pane 4 is in the 1 each indicated by dashed lines. The window pane 4, on the other hand, is shown in a half-open intermediate position with solid lines.

In the 2 is an exemplary installation situation of the window regulator system 6 in the area of a Wheel arch of the motor vehicle. The 2 shows an interior lining 26 of the motor vehicle, in particular the trunk. The inner lining 26 has a recess 28, with an inner lining part 30 being attached to the inner lining 26 as an inner lining trough. The approximately pot-shaped or bowl-shaped interior lining part 30 thus forms a base or rear wall for storage options (e.g. first-aid kit, flap, tub, bass speaker, etc.) in the interior lining 26.

The interior trim part 30 has an inside (front) 32 facing the vehicle interior and an opposite outside (back) 34. The inside 32 in particular forms a visible surface of the interior trim part 30, with the window regulator 2 being mounted on the back 34. For example, a hook 36 is formed on the inside 32, which can serve as a holder for shopping bags, etc.

The interior trim part 30 has, for example, two lateral fastening contours 38 for joining with the interior trim 26. The inside 32 is bordered on the edge by upstanding side walls, with the side walls having an outwardly projecting flange collar on the free end, on which a circumferential seal 40 is arranged. When installed, the window regulator 2 is arranged in particular in a wet room of the vehicle body, with the seal 40 realizing a reliable wet-dry room separation for the vehicle interior (dry room).

The 4 shows an embodiment of the window lift system 2, in which the seal 40 is arranged on the back.

Because the window regulator 2 is pre-assembled on the interior trim part 30, the window regulator system 6 is designed as a pre-assembly assembly, i.e. as a modular system (window regulator module) or as a delivery unit, which can be mounted at the OEM in the area of the recess 28 of the interior trim 26.

The interior trim part 30 is designed as an injection molded part onto which the seal 40 is, for example, molded. Preferably, functional elements of the window regulator 2 are integrally formed on the interior trim part 30, i.e. in one piece or monolithically. For example, unspecified cable pulley receptacles for the cable pulleys 22, 24 are formed on the interior trim part 30.

In the 5 an embodiment of the window lift system 2 is shown, in which a parapet reinforcement 42 is integrated as an insert into the interior trim part 30. The interior trim part 30 is made, for example, from an alternative or sustainable material. To improve the acoustic and thermal properties, the interior trim part 30 can also be made from non-woven materials.

In the execution of the 5 the interior trim part 30 has a frame part 44. The frame part 44 has two lateral disk guides 46, oriented approximately along the Z direction. One edge of the window pane 4 is guided in each of the pane guides 46, which are approximately U-shaped in cross section. The window guides 46 are partially arranged on the interior trim part 30 and extend beyond this in the Z direction. The window guides 46 are stabilized, for example, by means of the parapet reinforcement 42. Due to the location in the area of the wheel arch or above a rear wheel and the resulting limited installation space, non-rectilinear disc guides 46 can also be provided.

The frame part 44 or the two disk guides 46 have four mounting flanges 48 projecting at the edges for screw fastening the disk guides 46 to a bodyshell of the motor vehicle.

The exemplary embodiment of the 6 shows a window regulator system 6 with a railless window regulator 2. The window regulator 2 has two drivers 14, which are firmly fixed to the edges of the window pane 4. The drivers 14 are guided on the disk guides 46. Alternatively, the drivers 14 can also be designed to be free-running. Suitably, the functions of the window regulator 2 are thus divided into different components. The window pane 4 is guided by the pane guides 46 and the movement or drive of the window pane 4 is relocated to the cladding area.

The window regulator 2 has the design of 6 four cable deflection rollers, which are arranged as two upper cable rollers 22 and two lower cable rollers 24 on molded cable roller receptacles of the inner lining part 30. The positioning of the components on the interior trim part 30 is flexible and is shown using two possible installation positions of the servomotor 8, one position being shown only in dashed lines. The essentially free positioning of the servomotor 8 is in the 6 indicated schematically using a dashed double arrow.

The claimed invention is not limited to the exemplary embodiments described above. Rather, other variants of the invention can also be derived by the person skilled in the art within the scope of the disclosed claims without departing from the subject matter of the claimed invention. In particular, all of the individual features described in connection with the various exemplary embodiments can also be combined in other ways within the scope of the disclosed claims without departing from the subject matter of the claimed invention.

Reference symbol list

2

Window regulator

4

window pane

6

Window regulator system

8th

Servomotor

10

Adjusting mechanism

12

Guide rail

14

taker

16

pulley

18

Worm/helical gearbox

20

Rope drum

22

pulley

24

pulley

26

interior panelling

28

recess

30

Interior trim part

32

Inside/front

34

Outside/back

36

Hook

38

Fastening contour

40

poetry

42

Parapet reinforcement

44

frame part

46

Disc guide

48

mounting flange

Claims (10)

Window regulator system (6) for a window pane (4) of a motor vehicle, comprising - a window regulator (2) with a servomotor (8) and with an actuating mechanism (10) as well as with a driver (14) for connection to the window pane (4), and - an interior trim part (30), which in the assembled state forms part of an interior trim (26) of a vehicle interior, - wherein the window regulator (2) is pre-assembled on a rear side (34) of the interior trim part (30) facing away from the vehicle interior, and - Wherein the interior lining part (30) has a seal (40) running around the edge as a wet/dry room separation. Window regulator system (6). Claim 1 , characterized in that the window regulator (2) is designed without a rail. Window regulator system (6). Claim 1 or 2 , characterized in that the interior trim part (30) has a frame part (44) with a window guide (46) for receiving a pane edge of the window pane (4). Window regulator system (6). Claim 3 , characterized in that the frame part (44) has at least one mounting flange (48) for screw fastening to a motor vehicle bodyshell. Window regulator system (6). Claim 3 or 4 , characterized in that the driver (14) is guided on the disc guide (46). Window regulator system (6) according to one of the Claims 1 until 5 , characterized in that the driver (14) is cohesively joined to the window pane (4). Window regulator system (6) according to one of the Claims 1 until 6 , characterized in that the interior trim part (30) is an injection molded part, on which functional elements of the window regulator (2) are integrally formed. Window regulator system (6) according to one of the Claims 1 until 7 , characterized in that a parapet reinforcement (42) is integrated into the interior lining part (30). Window regulator system (6) according to one of the Claims 1 until 7 , characterized in that in the assembled state, a front side (32) of the interior trim part (30) facing the vehicle interior forms a rear wall of an interior trim recess. Use of a window regulator system (6) according to one of the Claims 1 until 9 for a rear side window of a motor vehicle.

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