Driver for window pane of motor vehicle

Abstract

A driver is provided for fastening a window pane of a motor vehicle to a guide device of a window lifter. The driver comprises: an inner clamping element which, in an assembled state, is in contact with a side of the window facing the interior of the motor vehicle; an outer clamping element which, in the assembled state, is in contact with a side of the window pane facing away from the interior of the motor vehicle; the base body is used for connecting the driver to the guide device; and a tensioning element which fixes the outer clamping element to the base body. The inner clamping element and the outer clamping element form a single receiving space for the window pane. The outer clamping element comprises a spring element which is arranged and configured to exert a clamping force, which is caused by the tensioning element, on the window pane located in the receiving gap in the assembled state.

Description

Technical Field

[0001] The present disclosure relates to a driver for fixing a window pane of a motor vehicle on a guide device of a window lifter and a motor vehicle having the driver. Background Art

[0002] DE102007054406A1 relates to a driver for fixing a window glass of a motor vehicle on a guide device of a window lifter, the driver comprising: an inner clamping jaw, which in the assembled state contacts the side of the window glass facing the interior of the motor vehicle; an outer clamping jaw, the inner clamping jaw and the outer clamping jaw forming a receiving gap for the window glass; and a base body for connecting the driver to the guide device. The outer clamping jaw is substantially fixedly arranged on the base body.

[0003] DE102005008629A1 relates to a device for detachably connecting a movable window pane of a motor vehicle to a driver of a window lifter, the device comprising a first and a second clamping mechanism, which are directly or indirectly supported on mutually opposite clamping surfaces on two side surfaces of the window pane. In addition, a tensioning device is provided, which tensions the clamping mechanism along a tensioning axis toward the corresponding clamping surface, wherein the tensioning axis extends through a through-hole of the window pane. The clamping surfaces extend at a distance from the tensioning axis and surround the tensioning axis at least partially in an annular manner. Summary of the invention

[0004] Under the background of these prior arts, the task of the present disclosure is to provide a device suitable for enriching the prior art.

[0005] This object is achieved by the features of the independent claim. The dependent claims and the independent claims contain the content of optional developments of the disclosure.

[0006] Accordingly, the object is achieved by a driver for fastening a window pane of a motor vehicle to a guide device of a window lifter.

[0007] A window lifter is a technical device designed to raise and lower the window glass of a motor vehicle side window. The window lifter can be an electric window lifter. In addition to a guide device that can have two guide rails, the window lifter can also include an electric motor for operating the window lifter. The electric window lifter can include a rope, wherein the electric motor can drive a rope drum via a worm gear-spur gear transmission. The two ends of a steel rope can be suspended on the rope drum so that when rotating, one end is wound up and the other end is unwound. The traction rope can pull the driver or window holder running on the two guide rails via a Bowden cable and a deflection wheel; the rope end without tension can be wound up on the rope drum again. The ends of the two Bowden cable housings can be elastically held on the housing of the drive in order to give the system a certain flexibility. This is only one possible construction scheme of the window lifter, and the window lifter can also be constructed differently from it as known to those skilled in the art.

[0008] The driver comprises an inner clamping element which, in the mounted state, is in contact with the side of the window pane facing the interior of the motor vehicle.

[0009] At present, "being in contact" can be interpreted as being in direct and / or indirect physical contact. That is, the inner clamping element is in direct or indirect contact with the vehicle window glass, optionally in surface contact with the vehicle window glass.

[0010] An assembled state is to be understood as a state in which both the driver and the window pane are already installed in or on the motor vehicle.

[0011] The driver also comprises an outer clamping element which, in the mounted state, is in contact with the side of the window pane facing away from the interior of the motor vehicle.

[0012] The above description about the inner clamping element is also applicable to the outer clamping element in a similar manner. In a possible embodiment, each clamping element can also be called a clamping jaw.

[0013] The driver further comprises a base body for connecting the driver to the guide device and a tensioning element for fixing the external clamping element to the base body.

[0014] The inner clamping element and the outer clamping element form a single receiving gap for the window pane.

[0015] The window pane can be introduced into the receiving gap from above. Therefore, a through-hole, for example, in the form of a through hole, is not required for the window pane to be mounted on the driver. The width of the receiving gap can follow the width of the window pane.

[0016] The outer clamping element has a spring element which is arranged and designed in such a way that, in the mounted state, a clamping force is exerted via the tensioning element on the window pane located in the receiving gap.

[0017] In other words, the inner clamping element can be substantially fixed so that the window pane introduced into the receiving gap is pressed from the outside against the inner clamping element by means of the outer clamping element. The window pane is thus clamped or tensioned between the inner clamping element and the outer clamping element and the window pane can substantially no longer move relative to the driver during driving of the motor vehicle, as long as the clamping force or the frictional force caused by the clamping force is not exceeded.

[0018] The challenge with window panes, in particular laminated glass (VSG, Verbund-Sicherheits-Glas), for side windows of motor vehicles is to produce a suitable force distribution on the window pane in order to prevent overloading of the glass material.

[0019] Conventional glass support is achieved via a system with a window lifter slider (currently called a driver) and a door sill seal (Türbrüstung-Dichtung), which seals the side door outward (the so-called outer window groove seal). The door sill seal provides a relatively large contact area for the window glass. However, the door sill seal is only applicable to a certain extent as a support part, because the sealing requirements and the support of the window glass have opposite goals. Usually, the window glass has a Y-direction working stroke of about 2 mm of the sealing lips of the door sill seal, which are attached to the window glass. This elastic part makes the connection of the window glass in the motor vehicle very soft, which in turn leads to undesirable effects when driving at higher speeds (for example 180 kilometers per hour), because the window glass must be closed again intact after it is opened. Therefore, this is challenging because the stiffness of the connection of the window glass to the integral combination of the door and the motor vehicle is limited by the door sill seal.

[0020] In the proposed driver, the support of the vehicle window glass at the door window sill seal can be omitted through the above-mentioned structure. In other words, the support of the vehicle window glass can be achieved only by the slider or the driver.

[0021] Optional further improvements to the above-mentioned driver are described in detail below.

[0022] The external clamping element can include a disc spring for applying a clamping force caused by a tensioning element to the vehicle window located in the receiving gap, the inner side of the disc spring being in contact with the side of the vehicle window facing away from the interior space of the motor vehicle in the assembled state, and the outer side of the disc spring being connected to the tensioning element via a tensioning plate.

[0023] The disc spring can have the shape of a flat truncated cone. The disc spring can be elastically compressed between its boundary circles by means of a tensioning plate (until the disc spring is deformed to the maximum extent possible into a flat plate), wherein normal stresses (compression and tension) are formed in the material of the disc spring as a reaction to the introduced forces. The disc spring can transfer the forces acting on the outside of the disc spring from the tensioning element via the tensioning plate to the window pane in a planar manner. This allows the window pane to be adequately fixed without overloading it.

[0024] The external clamping element can include a tensioning plate for applying a clamping force caused by the tensioning element to the vehicle window located in the receiving gap, wherein the upper end of the tensioning plate in the assembled state contacts the side of the vehicle window facing away from the interior space of the motor vehicle, and the lower end of the tensioning plate in the assembled state is connected to the tensioning element.

[0025] The tensioning plate can include two squeeze arms, which connect the end of the tensioning plate that is located at the bottom in the assembled state with the end of the tensioning plate that is located at the top in the assembled state, so that two squeeze points located in the first row are formed at the end of the tensioning plate that is located at the top in the assembled state, between the tensioning plate and the vehicle window located in the receiving gap.

[0026] The tensioning plate can include three squeeze arms extending from the upper end of the tensioning plate in the assembled state toward the lower end of the tensioning plate in the assembled state, and the three squeeze arms end above the lower end in the assembled state, so that three squeeze points located in the second row are formed between the tensioning plate and the vehicle window located in the accommodating gap.

[0027] Similar to a disc spring, the force acting on the outer side of the disc spring from the tensioning element via the tensioning plate can be transmitted to the window pane in a planar manner by means of the pressure arm of the tensioning plate, thereby achieving sufficient fixing of the window pane without overloading the window pane.

[0028] The tensioning plate and / or the disk spring can include steel or consist of steel.

[0029] A plastic insert can be arranged in the receiving gap, which in the mounted state is located between the window pane and the inner clamping element and the outer clamping element, respectively.

[0030] The receiving gap can be arranged completely above the tensioning element in the assembled state. This offers the advantage that the tensioning element, which is optionally designed as a screw, can be pre-assembled, that is, can be mounted on the driver even before the window pane is introduced. The base body and the inner clamping element can be designed in one piece, that is, as a single component.

[0031] In the mounted state, the clamping force brought about by the tensioning element can act in the width direction of the motor vehicle.

[0032] The tensioning element can have a screw fastened in the base body or be designed as a screw, wherein the longitudinal direction of the screw in the assembled state can extend in the vehicle width direction so that the clamping force in the vehicle width direction is increased by tightening the screw.

[0033] The above description is summarized below in other languages ​​and in conjunction with the specific embodiments of the present disclosure, wherein the following explanation does not constitute a limitation to the present disclosure: The glass of the vehicle that can be lowered and can be about 400-700 mm in height can be clamped with a clamping height of 50 to 60 mm. The asymmetrical tensioning plate can act as a three-point support here. The longer arm of the tensioning plate can be pressed onto the disc spring, which in turn can be pressed onto the plastic intermediate pad and then onto the glass. Through this working principle, the glass can be clamped with a support height of about 50 to 60 mm. The disc spring can distribute the force over a large area on the glass that is optionally constructed as laminated glass, thereby avoiding overloading of the glass. The tensioning plate pressed onto the disc spring and the disc spring itself can be constructed as stamped parts, for example, stamped parts made of steel. The glass can be protected by a plastic intermediate pad or a plastic sleeve, which refines the pressure distribution. If necessary, the sleeve can be set as a two-component component with a rubber layer to further refine the force distribution and the force introduction into the glass. However, it is also conceivable that the tensioning plate acts as an asymmetrical three-point bending support and that the longer arm of the tensioning plate is shaped in such a way that a double path is produced. With this form of the pressing arm pressing against the glass, the glass can be clamped at a height of about 50 to 60 millimeters, since two rows of pressing points are produced. One row has two pressing points and the other row has three pressing points. This means that the total clamping force can be distributed over a total of five pressing points.

[0034] Furthermore, a motor vehicle is provided, which has a motor vehicle side door and a window lifter, wherein the motor vehicle side door has a driver arranged in the motor vehicle side door, and the window lifter has a guide device connected to the driver.

[0035] The motor vehicle may be a passenger car (especially a car) and / or a truck.

[0036] It is conceivable that the motor vehicle has a window pane accommodated in a receiving gap of the driver, wherein the inner clamping element and / or the outer clamping element has such a size that, when the window pane is closed, it extends into the window sill area of ​​a window opening of a side door of the motor vehicle closed by the window pane.

[0037] In other words, the inner and / or outer clamping elements can extend into the area in which the seal that supports the window pane is usually located. It should be noted that the inner and / or outer clamping elements can have different shapes, such as oval or trapezoidal. In particular, in the case of a trapezoidal embodiment, the length of the inner and / or outer clamping elements can increase from top to bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Reference below Figures 1 to 4 Two implementations are described.

[0039] Figure 1 Schematically shows a side view of a driver for fastening a window pane of a motor vehicle to a guide device of a window lifter according to a first embodiment,

[0040] Figure 2 Schematically shows Figure 1 A perspective view of the driver in

[0041] Figure 3 A schematic side view of a driver for fastening a window pane of a motor vehicle to a guide device of a window lifter according to a second embodiment, and

[0042] Figure 4 Schematically shows Figure 3 A perspective view of the driver in FIG. DETAILED DESCRIPTION

[0043] exist Figures 1 to 4 , respectively, a Cartesian coordinate system is shown, whose X-axis extends from the front to the rear of the motor vehicle (not shown further) and thus represents the longitudinal direction X of the motor vehicle. The Y-axis, which is perpendicular to the X-axis, extends in the width direction Y of the motor vehicle, so that the motor vehicle longitudinal direction X and the motor vehicle width direction Y form an essentially horizontal plane. The Z-axis, which is perpendicular to both the motor vehicle longitudinal direction X and the motor vehicle width direction Y, represents the motor vehicle height direction Z, which extends from bottom to top. This is here Figures 1 to 4 The drivers 1 , 11 are shown in their orientation in the assembled state.

[0044] exist Figures 1 to 4 1 and 2 show drivers 1 and 11 for fixing a window pane (not shown) of a motor vehicle on a guide device of a window lifter (not shown), wherein: Figure 1 and Figure 2 Concerning the first embodiment, Figure 3 and Figure 4 The second embodiment is concerned. The drivers 1 and 11 are described below, and the description is applicable to both embodiments, unless it is clearly stated that a specific part is applicable to only one of the two embodiments.

[0045] The driver 1, 11 comprises two clamping elements 2, 12, 3, 13. More precisely, the driver 1, 11 comprises a fixed inner clamping element 2, 12, which in the assembled state contacts the side of the window pane facing the interior of the motor vehicle, and an outer clamping element 3, 13, which in the assembled state contacts the side of the window pane facing away from the interior of the motor vehicle.

[0046] The driver 1 , 11 further comprises a base body 4 , 14 integrally formed with the inner clamping element 2 , 12 , and a tensioning element 5 , 15 having a screw 6 , 16 , the base body being used to connect the driver 1 , 11 to the guide device, and the tensioning element fixing the outer clamping element 3 , 13 on the base body 4 , 14 .

[0047] The screw parts 6, 16 of the tensioning elements 5, 15 fixed in the base bodies 4, 14 have a longitudinal direction, which in the assembled state extends along the width direction Y of the vehicle, so that the clamping force along the width direction Y of the vehicle, which will be explained in detail later, can be increased by tightening the screw parts 6, 16 (or can be reduced by loosening the screw parts 6, 16).

[0048] The inner clamping elements 2, 12 and the outer clamping elements 3, 13 form a single receiving gap 7, 17 for a window pane, into which the window pane can be inserted laterally in the longitudinal direction X of the vehicle and / or from above in the height direction Z of the vehicle. In the assembled state, the receiving gap 7, 17 is arranged completely above the threaded element 6, 16 of the tensioning element 5, 15.

[0049] Arranged in the receiving gaps 7 , 17 are plastic inserts 8 , 18 which are substantially U-shaped in cross section and which, in the assembled state, are located between the window pane and the inner clamping element 2 , 12 and the outer clamping element 3 , 13 , respectively.

[0050] In both embodiments, the outer clamping element 3 , 13 has a spring element which is arranged and designed to exert a clamping force, which is brought about via the tensioning element 5 , 15 , on the window pane located in the receiving gap 7 , 17 in the mounted state.

[0051] In the drive 1 Figure 1 and Figure 2 In the first embodiment shown, the outer clamping element 3 has a disc spring 9 for applying a clamping force caused by the tensioning element 5 to the window pane located in the receiving gap 7. The inner side of the disc spring 9 is in contact with the side of the window pane facing away from the interior of the motor vehicle in the mounted state, while the outer side of the disc spring 9 is connected to the tensioning element 5 via a tensioning plate 10.

[0052] In the drive 1 Figure 3 and Figure 4 In the second embodiment shown, in which the plastic insert 18 can act as a spring element, the outer clamping element 13 has a tensioning plate 19 for applying a tensioning force to the window pane located in the receiving gap via the tensioning element 5. The upper end of the tensioning plate 19 in the mounted state contacts the side of the window pane facing away from the interior of the motor vehicle, while the lower end of the tensioning plate 19 in the mounted state is connected to the tensioning elements 5, 15. The tensioning plate 19 comprises two pressing arms 20, which connect the lower end of the tensioning plate 19 in the mounted state to the upper end of the tensioning plate 19 in the mounted state, so that two pressing points 21 are formed in the first row at the upper end of the tensioning plate 19 in the mounted state between the tensioning plate 19 and the window pane located in the receiving gap. The tensioning plate 19 further comprises three squeezing arms 22 extending from the upper end of the tensioning plate 19 in the assembled state toward the lower end of the tensioning plate 19 in the assembled state, and terminating above the lower end of the tensioning plate 19 in the assembled state, so that three squeezing points 23 located in the second row are formed between the tensioning plate 19 and the vehicle window located in the receiving gap.

[0053] In both embodiments, the tensioning plate and / or the disk spring can include steel or consist of steel.

[0054] In both embodiments, the clamping force caused by the tensioning element in the assembled state acts in the vehicle width direction Y, so that the window glass fixes the driver 1, 11 in the vehicle width direction Y by means of the clamping force. According to the above-described embodiment, since the clamping force is introduced into the window glass in a flat manner, such a strong fixation of the window glass can be achieved here that it is possible to omit its support at the seal of the side door.

[0055] It should be added that if Figure 1 As shown, although the outer and / or inner clamping elements 2, 12, 3, 13 can be designed as elliptical, a trapezoidal shape is also conceivable. Here, the outer and / or inner clamping elements 2, 12, 3, 13 can extend into the window sill area of ​​the window opening of the motor vehicle side door closed by the window glass in the closed state of the window glass, so as to replace the seal that is usually used to support the window glass in this area.

[0056] Reference numerals list

[0057] 1.11 drivers

[0058] 2.12 Internal clamping elements

[0059] 3.13 External clamping elements

[0060] 4.14 Matrix

[0061] 5.15 tensioning element

[0062] 6, 16 threaded parts

[0063] 7.17 Accommodation gap

[0064] 8.18 Plastic liner

[0065] 9 disc spring

[0066] 10, 19 tension plate

[0067] 20, 22 squeeze arm

[0068] 21, 23 squeeze points

[0069] X Longitudinal direction of vehicle

[0070] Y Vehicle width direction

[0071] Z vehicle height direction

Claims

1. A driver (1, 11) for fixing a window glass of a motor vehicle on a guide device of a window lifter, the driver (1, 11) comprising: an inner clamping element (2, 12) which, in the assembled state, contacts the side of the window pane facing the interior of the motor vehicle, an outer clamping element (3, 13) which, in the assembled state, contacts the side of the window pane facing away from the interior of the motor vehicle, a base body (4, 14), the base body being used to connect the driver (1, 11) to the guide device, and a tensioning element (5, 15) which fixes the outer clamping element (3, 13) on the base body (4, 14), The inner clamping element (2, 12) and the outer clamping element (3, 13) form a single receiving gap (7, 17) for the window pane. It is characterized in that The outer clamping element (3, 13) has a spring element which is arranged and designed to exert a clamping force caused by the tensioning element (5, 15) on the window pane located in the receiving gap (7, 17) in the assembled state.

2. The driver (1) according to claim 1, characterized in that: The outer clamping element comprises a disc spring (9) for applying a clamping force caused by the tensioning element (5) to the window glass located in the receiving gap (7), the inner side of the disc spring being in contact with the side of the window glass facing away from the interior space of the motor vehicle in the assembled state, and the outer side of the disc spring being connected to the tensioning element (5) via a tensioning plate (10).

3. The driver (11) according to claim 1, characterized in that: The external clamping element comprises a tensioning plate (19) for applying a clamping force caused by the tensioning element (5, 15) to the window glass located in the receiving gap (17), the upper end of the tensioning plate in the assembled state being in contact with a side of the window glass facing away from the interior space of the motor vehicle, and the lower end of the tensioning plate in the assembled state being connected to the tensioning element (15).

4. The driver (11) according to claim 3, characterized in that: The tensioning plate (19) comprises: two pressing arms (20) which connect the end of the tensioning plate (19) which is located at the bottom in the assembled state with the end of the tensioning plate (19) which is located at the top in the assembled state, so that two pressing points (21) located in the first row are formed at the end of the tensioning plate (19) which is located at the top in the assembled state, between the tensioning plate (19) and the window pane located in the receiving gap (17), and Three pressing arms (22) extend from the upper end of the tensioning plate (19) in the assembled state toward the lower end of the tensioning plate (19) in the assembled state, and the three pressing arms end above the lower end of the tensioning plate (19) in the assembled state, so that three pressing points (23) located in the second row are formed between the tensioning plate (19) and the window glass located in the receiving gap (17).

5. The driver (1, 11) according to any one of claims 2 to 4, characterized in that: The tensioning plate (10, 19) and / or the disc spring (9) comprise steel or consist of steel.

6. The driver (1, 11) according to any one of claims 1 to 5, characterized in that Plastic inserts (8, 18) are arranged in the receiving gaps (7, 17) and are located respectively between the window pane and the inner clamping element (2, 12) and the outer clamping element (3, 13) in the assembled state.

7. The driver (1, 11) according to any one of claims 1 to 6, characterized in that The receiving gap (7, 17) is arranged completely above the tensioning element (5, 15) in the assembled state, and / or The base body (1, 11) and the inner clamping element (2, 12) are constructed in one piece.

8. The driver (1, 11) according to any one of claims 1 to 7, characterized in that In the assembled state, the clamping force brought about by the tensioning element (5, 15) acts in the vehicle width direction (Y).

9. The driver (1, 11) according to claim 8, characterized in that: The tensioning element (5, 15) has a threaded part (6, 16) fixed in the base body (1, 11), or is configured as a threaded part, wherein the longitudinal direction of the threaded part (6, 16) extends along the width direction (Y) of the motor vehicle in the assembled state, so that the clamping force along the width direction (Y) of the motor vehicle is increased by tightening the threaded part (6, 16).

10. A motor vehicle having a motor vehicle side door, the motor vehicle side door having a driver (1, 11) arranged in the motor vehicle side door according to any one of claims 1 to 10, and having a window lifter having a guide device connected to the driver (1, 11).

11. The motor vehicle according to claim 10, characterized in that The motor vehicle has a window pane accommodated in a receiving gap (7, 17) of the driver (1, 11), wherein the inner clamping element (2, 12) and / or the outer clamping element (3, 13) are of such a size that they extend into a window sill area of ​​a window opening of a side door of the motor vehicle which is closed by the window pane when the window pane is in the closed state.

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