Guide rail assembly

Abstract

The invention relates to a guide rail assembly (20) for guiding, in a sliding manner, a rail slider (24) connected to a window pane (18). The guide rail assembly (20) comprises a guide rail (22) on which a cable roller (26) is rotatably mounted, and which comprises a receptacle (32) for a fastening means (34) on a carrier component (36). A distance from the receptacle (32) to a reference plane (64) in which the end face (44) of the cable roller (26) facing the guide rail (22) lies is less than 3mm. The invention also relates to a window lifter assembly (16).

Description

[0001] Description

[0002] Guide rail assembly

[0003] The invention relates to a guide rail assembly for the sliding guidance of a rail slider connected to a window pane. The guide rail assembly comprises a guide rail on which a cable pulley is rotatably mounted. Furthermore, the invention relates to a window lift assembly having a guide rail assembly.

[0004] Motor vehicles, such as passenger cars, typically have multiple windows that can be moved relative to a body of the motor vehicle. For this purpose, a window lifter assembly is typically used, by means of which the window pane, which may be a component of the window lifter assembly or separate therefrom, is moved. Such a window lifter assembly is typically arranged in a vehicle door, the door body of which generally has an outer door part forming the outer skin of the vehicle door and an inner part connected to this part as the inner door panel. Between this and the outer door part, an assembly space is formed, in which assembly space functional elements of the vehicle door and in particular the window lifter assembly are accommodated.This usually includes a support component, also known as a carrier plate or door module carrier, for components of the window lift assembly, as well as, if applicable, a door lock, an airbag sensor, a loudspeaker, and other functional elements. The support component also serves as a so-called wet-dry compartment divider and divides the cavity into a wet compartment side facing the outer door section, into which moisture can penetrate through a slit-like window opening in the vehicle door, and a dry compartment side facing the inner door section. The window lift assembly comprises an electric motor actuator and, in the case of a single-strand window lift, a single guide rail; and, in the case of a double-strand window lift, two guide rails. Rail gliders or drivers connected to a window pane (vehicle window pane) are slidably guided along these guide rails.These, in turn, are connected to the actuator via a flexible cable to move the window pane along an adjustment path between a closed and an open position. The rail gliders (drivers) are usually located near the bottom edge of the window pane and connected to it.

[0005] To reduce the effort required when pulling on the pull rope and prevent the rail glider from snagging on the respective guide rail, the pull rope is guided by several pulleys. These are usually pivotally mounted at both ends of the respective guide rail, so that the pull rope is guided between them and thus also essentially parallel to the guide rail in the area of ​​the respective rail glider. The pulleys extend beyond the guide rail, keeping the pull rope spaced from the guide rail and not obstructed by it.

[0006] The guide rail is attached to the door module support between the two cable pulleys. When the pulley is pulled, during assembly, and when the door is slammed shut, corresponding forces act on the comparatively heavy cable pulley, causing a high torque with respect to the connection to the support component, which acts as a fixed point. To prevent this from leading to deformation of the guide rail, it has several stiffening ribs either along its entire length or at least between the cable pulley and the connection to the support component. As a result, material requirements are increased and the weight of the window lifter assembly is increased. The tools used to manufacture the guide rail must also be larger, which leads to higher manufacturing costs and a longer production time.The invention is based on the object of specifying a particularly suitable guide rail assembly and a particularly suitable window lifter assembly, wherein robustness is advantageously increased and wherein manufacturing costs and / or weight are expediently reduced.

[0007] With regard to the guide rail assembly, this object is achieved according to the invention by the features of claim 1 and with regard to the window lift assembly by the features of claim 9. Advantageous further developments and refinements are the subject of the respective subclaims.

[0008] In the assembled state, the guide rail assembly is expediently a component of a window lifter assembly. The guide rail assembly is particularly suitable, expediently provided, and configured for this purpose. In the assembled state, the window lifter assembly is expediently a component of a motor vehicle and is thus suitable, provided, and configured for this purpose. The motor vehicle is in particular land-based and preferably designed with multiple tracks. In this case, it is suitably possible to position the motor vehicle essentially freely, in particular on a roadway. For this purpose, the motor vehicle expediently has corresponding wheels. In summary, it is preferably possible to position the motor vehicle essentially independently of other conditions on land. In other words, the motor vehicle is suitably not rail-guided.Preferably, the motor vehicle is a passenger car (car) or a commercial vehicle, such as a lorry (truck) or bus.

[0009] The window lift assembly serves in particular to adjust a window pane relative to a body of the motor vehicle. Preferably, the window pane is a component of the window lift assembly or a separate component. The window lift assembly is, for example, a component of a door of a motor vehicle, in particular a side door. The door has, for example, a frame by means of which the window pane is surrounded (at least in the closed state). Alternatively, the door is designed without a frame, and in the closed state, in particular of the door and the window pane, the edge of the window pane rests at least partially against a roof of the motor vehicle, which is, for example, rigid or adjustable, i.e., in particular, a convertible roof.

[0010] The guide rail assembly has a guide rail. The guide rail assembly serves to slideably guide a rail slider. The rail slider is made, for example, from a metal or, preferably, from a plastic. Preferably, the rail slider is a component of the window lifter assembly. At least the guide rail assembly is suitable, in particular provided and configured, for guiding the rail slider. Suitably, the guiding takes place by means of the guide rail, by means of which a path is thus predetermined, in particular, along which the rail slider can be moved. In particular, the guide rail and the rail slider comprise interlocking structures, so that only a movement of the rail slider in a longitudinal direction of the guide rail is possible.Alternatively, the rail glider, for example, is simply placed on the guide rail when assembled, which makes installation easier.

[0011] The rail glider itself serves to connect the window pane to the window pane. For example, the window pane is attached to the rail glider, either directly or via additional components. In particular, the window pane is clamped by the rail glider. Suitably, the guide rail is arranged at least partially vertically and / or parallel to an adjustment path of the window pane when installed. Thus, the rail glider is guided parallel to the adjustment path of the window pane by means of the guide rail.

[0012] The guide rail has a receptacle for a fastening means. The fastening means serves for attachment to a support component, which is also referred to as a door module, module carrier, door module carrier or support plate. In particular, the support component is made of a plastic and / or is a component of the window lifter assembly. The support component expediently stabilizes the guide rail and therefore also the rail slider and the window pane in the assembled state with respect to other components of the motor vehicle. The receptacle provides a location where the fastening means can and / or should be arranged. In particular, arrangement of the fastening means is merely possible or at least facilitated there, and the receptacle, for example, specifies a mounting location for the fastening means relatively precisely, thus facilitating installation.In the assembled state, the guide rail is thus fixed and stabilized in the area of ​​the holder on the support component, so that movement of the guide rail with respect to the support component is prevented.

[0013] A cable pulley is also rotatably mounted on the guide rail. In the assembled state, this is expediently located on the side of the guide rail opposite the support component. The cable pulley serves in particular to guide a traction cable, to which the rail glider is suitably attached in the assembled state. For example, a rolling bearing or a plain bearing is attached to the guide rail for the bearing. In particular, the rolling bearing is formed by a pin or bolt attached to the guide rail. In particular, an axis of rotation of the cable pulley is essentially perpendicular to the longitudinal direction of the guide rail or is inclined with respect to the vertical by at least an angle of less than 20°, 10°, or 5°.

[0014] The pulley suitably has one or more grooves within which the traction cable can be inserted. The pulley is essentially cylindrical or coil-shaped, such as a disc-shaped coil. This reliably prevents the traction cable from coming loose. Installation of the traction cable is also facilitated in this way. At a minimum, the pulley has an end face that is, in particular, perpendicular to the rotational axis of the pulley. The end face faces the guide rail and, in particular, forms the end of the pulley facing the guide rail.

[0015] A reference plane is defined by means of the end face, whereby the end face lies in the reference plane. Consequently, the reference plane is parallel to the end face. In summary, the end of the pulley facing the guide rail lies in the reference plane, which is perpendicular to the rotation axis of the pulley. The distance of the holder to the reference plane is less than 3 mm. In other words, the plumb line is determined by the holder to the reference plane, and the distance corresponds, for example, to the length between the base point of the plumb line and the holder. Thus, the holder is less than 3 mm away from the reference plane. Preferably, the distance to the center of the holder is determined, especially if the holder and the end face are not parallel to each other.

[0016] Due to this type of construction, the lever arm relative to the fixed mount is comparatively small, even when high forces act on the cable pulley. In other words, when a force is applied to the cable pulley, it is split into two components, one of which is perpendicular to the guide rail and the other parallel to the guide rail. The component acting parallel to the guide rail is introduced into the support component due to its attachment to the latter. By contrast, the component running perpendicular to the longitudinal direction provides a torque that acts on the guide rail in the area of ​​the cable pulley, with the pivot point being provided by the connection. Due to the small distance, the torque is comparatively small, so that even with a comparatively low connection rigidity / robustness of the guide rail, unwanted deformation of the latter is avoided.

[0017] In summary, the acting forces, or at least the acting component of the forces that could cause undesired deformation, are reduced, and the load on the guide rail is reduced. This allows the guide rail to be designed with comparatively low rigidity perpendicular to its direction of extension and / or made thinner, simplifying production and reducing material requirements. This reduces material and manufacturing costs, as well as the weight of the guide rail assembly. This prevents undesired deformation of the guide rail during use, thus increasing robustness. Furthermore, it is possible to reduce the number and / or design of stiffening ribs on the guide rail, leading to further material savings and facilitating production. The reference plane is expediently located between the mount and the support component in the assembled state.However, it is particularly preferred that the receptacle be arranged between the reference plane and the support component, so that a comparatively flat guide rail is realized.

[0018] For example, the guide rail assembly comprises only a single such receptacle for a fastening means. Expediently, however, the guide rail comprises at least one further receptacle, which is preferably assigned to the opposite end of the guide rail. In the assembled state, this receptacle accommodates a fastening means by means of which the guide rail is fastened to the support component. Thus, the guide rail is held relatively securely on the support component, and tilting or pivoting is prevented. For example, further receptacles are provided, each of which, for example, is assigned a fastening means in the assembled state. This further increases robustness. Alternatively, several receptacles are provided but only two fastening means.The other mounts are used, for example, for fastening to different carrier component types, so that the same guide rail I can be used, in particular, for different vehicle types.

[0019] Alternatively, or particularly preferably in combination with the additional receptacle, the guide rail assembly comprises an additional cable pulley. In particular, the cable pulleys are identical in construction so that identical parts can be used. The additional cable pulley is also rotatably mounted on the guide rail, and in particular the axes of rotation of the two cable pulleys are parallel to one another and / or they are arranged on the same side of the guide rail. Preferably, the two cable pulleys are assigned to different ends of the guide rail. In the assembled state, the rail glider is preferably arranged between the cable pulleys and is fastened to the traction cable that is tensioned between the two cable pulleys and / or at least deflected by means of the two cable pulleys. Thus, the rail glider is moved along the extent of the guide rail between the cable pulleys when the traction cable is moved, and the traction cable is essentially parallel to the guide rail.Advantageously, the distance between the two mounts and the reference plane is less than 3 mm, or different reference planes are assigned to the two mounts, with each reference plane being determined by one of the pulleys. In particular, each mount is assigned the reference plane determined by the nearest pulley. In another alternative, for example, the end faces of both pulleys are in the same reference plane. This prevents deformation of the guide rail due to a comparatively high acting force on both pulleys.

[0020] Preferably, the distance is less than 2 mm or, more expediently, less than 1.5 mm. This minimizes the forces / torques acting perpendicular to the guide rail's path, which could lead to deformation of the guide rail. This further reduces the load on the guide rail, allowing it to be designed with even greater precision, resulting in further material savings.

[0021] For example, the end face of the pulley is spaced apart from the guide rail. This means there is no friction when the pulley rotates, and the pulley runs comparatively smoothly. Wear is also reduced. However, it is particularly preferred that the end face rest directly on the guide rail. This prevents the pulley from tilting relative to the guide rail, increasing robustness. The lever arm acting on the pulley bearing is also reduced, reducing the demands placed on it. In other words, there is no need to stiffen the guide rail there, yet tearing or tilting of the pulley bearing on the guide rail is prevented. This reduces manufacturing costs, and it is possible to further reduce material requirements.In addition, this way, the surface of the guide rail lies at least partially in the reference plane, which simplifies the design of the guide rail, while the distance between the mount and the reference plane is comparatively small. In particular, the guide rail has a pulley surface that is at least partially shaped to match the end face. This further stabilizes the pulley and further reduces stress on the bearing.

[0022] For example, the guide rail is formed in the desired shape and cast, for example. However, the guide rail is particularly preferably a stamped and bent part. This reduces production time and scrap is comparatively low. Due to the reduced distance of the holder to the reference plane, in particular the cable pulley surface, the required depth of the tool used to punch out the guide rail is reduced, thus reducing tool costs. Also, due to the reduced required stiffness of the guide rail and in particular the reduction in stabilizing ribs, the width of the required sheet from which the guide rail is punched is reduced, and therefore the feed rate. As a result, the demands on the machine used to manufacture the guide rail are reduced.

[0023] For example, the guide rail is made of plastic, for example by plastic injection molding. It is advisable to make the guide rail of fiber-reinforced plastic. However, the guide rail is preferably made of metal. This increases robustness, whereby undesirable, relatively large forces initially result in elastic deformation. Therefore, once the forces subside, the guide rail returns to its original shape, which can then be used in a variety of ways. For example, the guide rail is made of steel. However, the guide rail is preferably made of aluminum. The aluminum reduces material costs and weight.Due to the reduced required stability of the guide rail, undesirable deformation of the guide rail is excluded despite the use of aluminum, without the guide rail being excessively thick.

[0024] For example, the receptacle is provided simply by means of a round hole that is made in a substantially flat area of ​​the guide rail. Preferably, however, the receptacle is made in a funnel-shaped recess. In other words, the guide rail comprises the funnel-shaped recess, which expediently points in the direction of the support component and / or away from the reference plane. Preferably, the bottom of the funnel-shaped recess forms the receptacle. In other words, the receptacle is located at the bottom of the funnel-shaped recess. The funnel-shaped recess acts like a stabilizing rib, thereby increasing the robustness of the guide rail. The funnel-shaped recess makes it easier to insert the fastening means, and after installation, the fastening means is held there securely and stably. The recess also at least partially protects the fastening means.

[0025] For example, the recess is made in a substantially flat section of the guide rail. However, the recess is particularly preferably made in a raised portion which is, in particular, at least partially annular. In particular, due to the raised portion, the recess is surrounded by an annular or circular section of the raised portion. Due to the raised portion and the recess, the cross-section of the guide rail perpendicular to the reference plane in the region of the receptacle is, in particular, m-shaped or wave-shaped. This further increases the stability of the guide rail without excessively increasing the thickness of the guide rail. It is also possible to make the recess comparatively deep, whereby this is fully or partially compensated for by the raised portion.In summary, this provides comparatively extensive stabilization, although the extension of the guide rail perpendicular to the longitudinal direction is reduced. The elevation also makes it easier to select a comparatively small distance between the mount and the reference plane.

[0026] For example, the guide rail between the cable pulley and the holder is essentially flat. However, the guide rail between the cable pulley and the holder is particularly preferably provided with a shoulder. The shoulder is located, at least in part or preferably completely, on the side of the reference plane opposite the holder. In particular, the shoulder delimits any cable pulley surface at least in part. The shoulder suitably points away from the support component and is, for example, bead-shaped. The shoulder further stabilizes the area of ​​the guide rail between the cable pulley and the holder. Alternatively, or in combination with this, the shoulder ensures that forces acting on the cable pulley are reliably transmitted via the holder into the support component.

[0027] In the assembled state, the window lifter assembly is expediently a component of a motor vehicle and is suitable, expediently provided, and configured for this purpose. The motor vehicle is, for example, land-based and is, for example, a lorry, bus, or preferably a passenger car. The motor vehicle has, for example, a body that includes an opening. Preferably, the motor vehicle has a door that is, in particular, arranged such that the opening can be covered by it. Expediently, a hinge is provided, by means of which the door is mounted on the body so that it can be moved relative to the body, for example, pivoted and / or moved at least partially along a longitudinal direction. Preferably, the motor vehicle has doors that are, in particular, each designed in the manner of a side door.

[0028] Preferably, the window lift assembly is assigned to the door, if any. Suitably, the motor vehicle has several such window lift assemblies, with one of the window lift assemblies being assigned to each door. For example, the motor vehicle may have additional window lift assemblies that are not, however, part of a door of the motor vehicle.

[0029] The or all window lift assemblies each have a guide rail assembly for slidingly guiding a rail slider connected to a window pane. The guide rail assembly comprises a guide rail on which a cable pulley is rotatably mounted, and which has a receptacle for a fastening means on a support component, wherein a distance of the receptacle from a reference plane in which the end face of the cable pulley facing the guide rail lies is less than 3 mm. The window lift assembly comprises the fastening means and the support component, and the guide rail assembly is fastened to the support component by means of the fastening means. Expediently, at least one further fastening means is provided, so that a comparatively robust connection of the window lift assembly to the support component is realized.Conveniently, the window lift assembly includes the rail slider, which is guided along the guide rail. For example, the window lift assembly includes the window pane, which is connected, preferably clamped or clipped, to the rail slider.

[0030] For example, the window lift assembly comprises only one guide rail assembly. However, the window lift assembly particularly preferably comprises two such guide rail assemblies, which are offset from one another at least partially perpendicular to their longitudinal direction. In this case, the window pane is expediently assigned to both window lift assemblies.

[0031] Suitably, the window regulator assembly comprises the pull cable, which is deflected / guided by means of the corresponding pulleys.

[0032] For example, the window lift assembly also includes an actuator, by means of which the pull cable, if present, is guided around the pulley(s). The actuator preferably includes an electric motor, by means of which, for example, a gear mechanism, such as a worm gear, is driven. The gear mechanism, or at least the electric motor, preferably drives a cable drum around which the pull cable is wound. Thus, the window pane is adjusted when the actuator is operated.

[0033] The support component is made, in particular, of a plastic, and further functional components are, or at least can be, attached to it. Such a functional component is, for example, a loudspeaker, a lock, or an input device such as a switch or a lever. For example, the fastening means is designed in the manner of a clip or a bolt. However, the fastening means particularly preferably comprises a pin attached to a head. The fastening means is expediently substantially T-shaped. In other words, the fastening means is, in particular, a screw or a rivet.

[0034] The pin is guided through the receptacles, and a clearance fit is suitably provided between the pin and the receptacle. In the assembled state, the head rests against the guide rail, preferably in a force-locking manner. At least in the assembled state, the head is located on the side facing away from the support component, so that the guide rail is held between the head and the support component. Suitably, the pin is attached to the support component, for example, screwed into it. This allows the guide rail to be installed from the side facing away from the support component.

[0035] The mount is provided, for example, by means of a round hole. This allows the position of the guide rail on the support component to be specified relatively precisely. Alternatively, the mount is designed, for example, like an elongated hole, so that the guide rail can be aligned and / or adjusted on the support component.

[0036] The pulley guides and deflects the traction cable so that the pulley is not just arranged along a straight line, but at least along two intersecting straight lines. This defines a plane in which the pulley is located due to the deflection. The fastening means projects through the plane. In other words, the fastening means is located on both sides of the plane. The receptacle and consequently the fastening means are located in particular at a position on the guide rail which is spaced from the pulley, so that the pulley is not impaired by the fastening means. Because the receptacle projects through the plane, it is possible to use a comparatively large fastening means despite the short distance between the receptacle and the reference plane, and this fastening means can be designed to be comparatively robust and / or cost-effective. The size also makes installation of the fastening means easier.

[0037] The invention further relates to a motor vehicle with such a window lifter assembly.

[0038] The further developments and advantages explained in connection with the guide rail assembly can also be transferred to the window lift assembly / the motor vehicle and to each other and vice versa.

[0039] An embodiment of the invention is explained in more detail below with reference to a drawing. In the drawings:

[0040] Fig. 1 shows schematically in a side view a motor vehicle with a door comprising a window lift assembly,

[0041] Fig. 2 schematically shows the window lift assembly, which comprises two guide rail assemblies,

[0042] Fig. 3 shows a plan view of a guide rail of one of the guide rail assemblies,

[0043] Fig. 4 perspective section of the guide rail,

[0044] Fig. 5, 6 show a perspective view and a section of one of the guide rail assemblies.

[0045] Corresponding parts are provided with the same reference numerals in all figures.

[0046] Figure 1 shows a simplified schematic representation of a motor vehicle 2 in the form of a passenger car (car). The motor vehicle 2 has a plurality of wheels 4, by means of which contact is made with a road surface (not shown in detail). The wheels 4 are connected by means of a chassis to a body 6 of the motor vehicle 2, which is made at least partially from sheet metal. The body 6 has an opening 8 that can be covered by a door 10. For this purpose, the door 10 is connected to the body 6 by means of a hinge 12, wherein the hinge 12 allows the door 10 to be pivoted relative to the body 6 so that the opening 8 of the body 6 is exposed or covered.

[0047] The door 10 has a door body 14, which provides the mechanical integrity of the door 10 and is made of sheet metal. The door body 14, which is a component of the body 6, is mechanically attached to the hinge 12 and at least partially forms an outer skin of the door 10. The door 10 further has a window regulator assembly 16, which includes a window pane 18. When the window pane 18 and the door 10 are closed, the entire opening 8 is filled by the door body 14 and the window pane 18.

[0048] Figure 2 shows a simplified schematic representation of the window lift assembly 16, which comprises two guide rail assemblies 20 that are identical in construction, mirror-imaged, or at least essentially functionally identical. The guide rail assemblies 20 are offset from the outer skin of the door 10 into the interior of the motor vehicle 2. Each guide rail assembly 20 comprises a guide rail 22 that are arranged parallel to one another. The longitudinal direction of the guide rails 22 is essentially vertical or inclined by a few degrees relative to it.

[0049] On each guide rail 22, a rail glider 24 of the respective guide rail assembly 20 is movably mounted, which in the example shown are arranged on opposite sides of the respective guide rail 22. Here, protrusions of the rail glider 24 engage around the edge of the respective guide rail 22, so that the respective rail glider 24 can only be moved along the longitudinal direction. The two rail gliders 22 are connected to the window pane 18. For this purpose, the window pane 18 is clamped to the two rail gliders 22 by means of a clamping mechanism (not shown in detail).

[0050] At each guide rail 22, a cable pulley 26 of the guide rail assembly 20 is rotatably mounted at its longitudinal end. A traction cable 28 is guided crosswise by means of the cable pulleys 26 and is driven by an actuator 30 comprising a cable drum (not shown in detail) and an electric motor. Each of the two rail sliders 24 is attached to the traction cable 28 in the area between the two cable pulleys 26 of the same guide rail assembly 20. Thus, when the actuator 30 is operated, the traction cable 28 is moved, resulting in a synchronous movement of the two rail sliders 24 along the respective guide rail 22 and thus in the adjustment of the window pane 18.

[0051] Each guide rail 22 has a receptacle 32, which is essentially designed as a round hole. A fastening means 34 of the window lifter assembly 16, which is designed like a rivet, is guided through each receptacle 32. The two receptacles 32 are assigned to the opposite ends of the respective guide rail 22, and the guide rail assemblies 20 are fastened to a common support component 36 made of a plastic by means of the fastening means 34. Due to the two fastening means 34 per guide rail 22, any relative movement of the guide rails 22 with respect to the support component 36 is prevented.

[0052] The support component 36 serves to accommodate functional components, such as a lock or loudspeaker (not shown in detail). The support component 36 is attached to the door body 14 and divides it into a wet compartment side facing the exterior of the motor vehicle 2 and a wet compartment side facing the interior of the motor vehicle 2.

[0053] One of the two guide rails 22 is shown in a plan view in Figure 3 and in a perspective section in Figure 4. The guide rail 22 is made of aluminum and is punched from an aluminum sheet and suitably bent using a stamping process. In other words, the guide rail 22 is a stamped and bent part. The guide rail 22 has a longitudinal edge 38 which, in the assembled state, is gripped by the associated rail slider 24. By means of the longitudinal edge 38, a Z-shaped cross-section of the guide rail 22 is formed perpendicular to the longitudinal direction of the guide rail 22, which is parallel to the longitudinal edge 38. As a result, the guide rail 22 is stabilized over its entire length.

[0054] The guide rail 22 has two holes 40 which are formed in a cable pulley surface 42 of the guide rails 22. The cable pulley surfaces 42 are assigned to opposite ends of the guide rail 22 in the longitudinal direction and are essentially flat. As shown in perspective in Figure 5 and in a sectional view along the longitudinal edge 38, i.e. in the longitudinal direction, one of the cable pulleys 26 rests on each of the cable pulley surfaces 42 with its end face 44 facing the guide rail 22. In other words, the end faces 44 rest directly on the guide rail 22. The cable pulleys 26 are each held and rotatably mounted on the guide rail 22 by means of a bolt 46 which is pressed into the respective hole 40 and held there in a rotationally fixed manner. A slide bearing is provided in each case by means of the bolts 46.

[0055] The cable pulley surfaces 42 each transition directly into a wraparound section 48 which runs perpendicular to the longitudinal edge 38 and the respective cable pulley surface 42. Each wraparound section 48 forms one of the ends of the guide rail 22 in the longitudinal direction. Thus, each of the cable pulley surfaces 42 and each of the cable pulleys 26 is assigned to one of the ends of the guide rail 22 in the longitudinal direction. The wraparound sections 48 stabilize the guide rail 22 against bending. One of the receptacles 32 is arranged on the side of each cable pulley surface 42 opposite the respective wraparound section 48. The receptacles 32 and the holes 40 lie essentially on a common straight line which is parallel to the longitudinal edge 38.

[0056] On the side opposite the longitudinal edge 38, the approximately end-side third of the guide rail 22 is bent by means of a fold 50 running parallel to the longitudinal edge 38. Each fold 50 points in the opposite direction to the longitudinal edge 38, namely in the direction of the support component 36. Thus, the holes 40 and the receptacle 32 at each end of the guide rail 22 are each arranged between the longitudinal edge 38 and one of the folds 50, by means of which undesirable bending of the guide rail 22 between each hole 40 and the associated receptacle 32 is prevented.

[0057] In addition, between each pulley surface 42 and the associated receptacle 32, the guide rail 22 is everted to form a shoulder 52, which is located on the side of the fold 50 and by means of which the pulley surface 42 is delimited. The shoulder 52 protrudes longitudinally beyond the recess 32, so that each shoulder 52 extends at least between the respective pulley 26 and receptacle 32. The shoulders 52 are offset from the pulley surface 42, so that the respective pulley 26 is slightly gripped at the edge by means of the shoulders.

[0058] Each recess 32 forms the bottom of a respective funnel-shaped depression 54, such that the receptacle 32 is inserted into the funnel-shaped depression 54, which is also simply referred to as depression 54. The depression 54 points in the direction of the support component 36 and thus in the opposite direction of the shoulder 52. The depression 54 is inserted into a frustoconical elevation 56, such that the depression 54 is surrounded by an annular edge 58 of the elevation 56. Due to such a configuration, the guide rail 22 has a substantially m-shaped cross-section in the region of the elevation 56 and the depression 54, or a v-shaped cross-section on each side of the hole 40. Due to one of these features, the guide rail 22 is further stabilized.

[0059] In each recess 32, the respective fastening means 34 is arranged, which comprises a pin 60 that is guided through the recess 32. A head 62 is formed on the pin 65, which lies in the recess 54 and is located on the side of the guide rail 22 facing away from the support component 36. The opposite end of the pin 60 is guided through a corresponding opening in the support component 36 and widened in a rivet-like manner, so that the guide rail 22 is held captively on the support component 36. The recess 54 facilitates the insertion of the fastening means 34, and the head 62 is partially protected.Since the receptacles 32 and the holes 40 lie essentially on a straight line, and the cable pulley 26 has an enlarged extent perpendicular to the longitudinal direction and the respective axis of rotation, the traction cable 28 also runs parallel to the longitudinal direction between the cable pulleys 26, but is laterally offset with respect to the fastening means 34. Due to the cross-shaped deflection by means of each cable pulley 26, a plane is defined in the area of ​​each cable pulley 26 by means of the traction cable 28, wherein the fastening means 34 assigned to the respective cable pulley 26 is located between the two legs of the traction cable 28 in this area. The fastening means 34 protrudes through the plane defined by the legs of the traction cable 28, which is why it is possible to design the head 60 with a comparatively large volume, which facilitates assembly.In other words, by means of each pulley 26, the traction cable (28) is deflected in such a way that it is located in a respective plane through which the associated fastening means 34 projects.

[0060] The cable pulley surface 42 and thus the end face 44 of the respective cable pulley 26 facing the guide rail 22 lie in a reference plane 64, which is shown in Figure 6. Thus, each of the cable pulleys 26 is assigned a corresponding reference plane 64. The reference plane 64 is slightly tilted with respect to the longitudinal edge 38, and thus also to the traction cable 28, and the respective shoulder 52 is located on the side of the reference plane 64 opposite the receptacle 32. The receptacle 32 assigned to the respective cable pulley 26 is at a distance from the reference plane 64 which is less than 1.5 mm and in the example shown is 1.4 mm.

[0061] In summary, the guide rail assembly 20 thus comprises the respective guide rail 22, on which the respectively associated cable pulleys 26 are rotatably mounted. In the area of ​​each cable pulley 26, one of the receptacles 32 is arranged, in which, in the assembled state, the respectively associated fastening means 84 is arranged, by means of which the guide rail 22 is fastened to the support component 36. In this case, a reference plane 64 is determined by means of each end face 44 of each cable pulley 26, and the distance of the reference plane 64 from the receptacle 32, which is adjacent to the cable pulley 26 and by means of which the reference plane 64 is defined, is less than 3 mm.

[0062] If a force acts on the cable pulley 26 during assembly or operation of the motor vehicle 2, this force has two components, one of which is within the reference plane 64 and the other component perpendicular to it. The force component acting in the reference plane 64 is introduced into the support component 36 by means of the respectively assigned fastening means 34 due to the longitudinal extension of the guide rail 22 and the shoulder 52, whereby slipping of the guide rail 22 relative to the support component 36 is prevented due to the recess 54 and the contact of the head 62 there. The force component acting perpendicular to the reference plane 64, on the other hand, causes a torque on the guide rail 22 in the region of the hole 40, whereby due to the rigid fastening to the support component 36, the torque acts relative to the receptacle 32. This torque is absorbed by the longitudinal edge 38 and the fold 50.However, if the torque is too great, the end of the guide rail 22 projecting beyond the holder 32 is bent. Since the distance between the holder 32 and the reference plane 64 is only 1.4 mm, the force required for this is comparatively great and does not occur either during operation of the motor vehicle 2 or during assembly of the window lifter assembly 16, even if the aluminum sheet from which the guide rail 22 is made has a comparatively small thickness. The width of the guide rail 22, i.e. the extent between the longitudinal edge 38 and the folds 50, can also be selected to be comparatively small, which overall leads to a material saving and therefore a reduced weight. The feed required during the production of the guide rail 22 by means of punching and bending is also reduced.

[0063] The invention is not limited to the exemplary embodiment described above. Rather, other variants of the invention can also be derived therefrom by those skilled in the art without departing from the subject matter of the invention. In particular, all individual features described in connection with the exemplary embodiment can also be combined with one another in other ways without departing from the subject matter of the invention. List of reference symbols

[0064] 2 motor vehicles

[0065] 4 wheel

[0066] 6 Body

[0067] 8 Opening

[0068] 10 Door

[0069] 12 Hinge

[0070] 14 Door body

[0071] 16 Window regulator assembly

[0072] 18 window pane

[0073] 20 Guide rail assembly

[0074] 22 Guide rail

[0075] 24 rail gliders

[0076] 26 pulley

[0077] 28 traction rope

[0078] 30 Actuator

[0079] 32 recordings

[0080] 34 fasteners

[0081] 36 Support component

[0082] 38 Longitudinal edge

[0083] 40 holes

[0084] 42 pulley area

[0085] 44 Frontal surface

[0086] 46 bolts

[0087] 48 Wraparound

[0088] 50 folds

[0089] 52 shouldering

[0090] 54 Deepening

[0091] 56 Survey

[0092] 58 rand

[0093] 60 pen

[0094] 62 Head 64 Reference plane

Claims

Claims 1. Guide rail assembly (20) for the sliding guidance of a rail slider (24) connected to a window pane (18), which comprises a guide rail (22) on which a cable pulley (26) is rotatably mounted, and which comprises a receptacle (32) for a fastening means (34) on a support component (36), wherein a distance of the receptacle (32) from a reference plane (64), in which the end face (44) of the cable pulley (26) facing the guide rail (22) lies, is less than 3 mm.

2. Guide rail assembly (20) according to claim 1, characterized in that the distance is less than 1.5 mm.

3. Guide rail assembly (20) according to claim 1 or 2, characterized in that the end face (44) bears directly against the guide rail (22).

4. Guide rail assembly (20) according to one of claims 1 to 3, characterized in that the guide rail (22) is a stamped and bent part.

5. Guide rail assembly (20) according to one of claims 1 to 4, characterized in that the guide rail (22) is made of aluminum.

6. Guide rail assembly (20) according to one of claims 1 to 5, characterized in that the receptacle (32) is inserted into a funnel-shaped recess (54).

7. Guide rail assembly (20) according to claim 6, characterized in that that the depression (54) is introduced into a protrusion (56).

8. Guide rail assembly (20) according to one of claims 1 to 7, characterized in that the guide rail (22) has a shoulder (52) extending between the cable pulley (26) and the receptacle (32), which shoulder is located on the side of the reference plane (64) opposite the receptacle (32).

9. Window lifter assembly (16) with a guide rail assembly (20) according to one of claims 1 to 8, which is fastened to a support component (36) by means of a fastening means (34).

10. Window lifter assembly (16) according to claim 9, characterized in that the fastening means (34) comprises a pin (60) which is guided through the receptacle (32) and is fastened to a head (62), the head (62) being located on the side facing away from the carrier component (36), and a pull cable (28) being deflected by means of the cable pulley (26) in such a way that it is located in a plane through which the fastening means (34) projects.

Images