DE102020204026A1 - Vehicle window lifters - Google Patents

Abstract

The invention relates to a vehicle window lifter (1) for moving a vehicle window (5), having at least one guide rail (3) and a rail slider (4) which is guided along this and is coupled to the vehicle window (5) and on which an adjusting drive (7 ) engages coupled pull rope (6), the rail slider (4) having a guide area (13) acting as a rail wrap-around (12) for receiving a profile section (14) of the guide rail (3), the profile section (14) encompassed by the guide area (13) ) has a first profile leg (14a) oriented transversely to the longitudinal direction (L) of the rail and a second profile leg (14b) oriented transversely to this and to the longitudinal direction (L) of the rail, the first and / or the second profile leg (14a, 14b) having a widened cross-section, wherein the guide area (13) has a first and second profile legs (14a, 14b) overlapping first slide leg (17a) and one of the z has white profile legs (14b) engaging behind the second sliding leg (17b), and wherein the first and the second sliding leg (17a, 17b) at least partially bear against the first and / or the second profile leg (14a, 14b).

Description

The invention relates to a vehicle window lifter for moving a vehicle window, having at least one guide rail and a rail slider guided along the guide rail and coupled to the vehicle window, on which a traction cable coupled to an adjusting drive, in particular an electric motor, engages.

Movable vehicle window panes are usually moved between a closed position and an open position by actuating devices operated by an electric or electric motor as (vehicle) window lifters. Such a window lifter usually comprises an (electric) servomotor and an actuating mechanism which connects the servomotor to the window pane, that is, which couples with force transmission technology and which are assigned to a motor vehicle door or a motor vehicle body. The adjusting mechanism is mechanically connected to the window pane to be moved by means of at least one driver.

Such a driver for a vehicle window pane is, for example, from DE 10 2018 213 360 A1 known. The driver, which is arranged in the area of a lower edge or in the area of a side edge of the window pane, is connected to an electromotive drive via a flexible traction device in the form of a cable pull and can be adjusted along a guide rail around the window pane along the adjustment path between the closed position and the open position to move.

Such a driver is also guided in a displaceable manner on the guide rail, for example by means of a rail slider. The driver and the rail slider can be part of a common base body or component. The driver and the rail slider can also be separate components that are joined to one another in the assembled state.

From the DE 10 2018 213 172 A1 Such a rail slider for a cable window lifter (window lifter system) for raising and lowering a vehicle window of a motor vehicle is known. The rail slider has a rail slider base body with a guide area in the form of a rail wraparound for receiving a profile section of a guide rail of the window lifter and a slide insert accommodated in this guide area and adapted to the profile section of the guide rail, which in turn has a receiving chamber open towards the guide rail. The slide insert is joined to the rail slider base body in its guide area (rail wraparound) and clipped or snapped into place there.

In practice, rail sliders with different gap dimensions of the guide area formed by the rail wraparound for the profile section of guide rails of different rail thicknesses, for example between 1.0 mm and 2.4 mm, are typically to be provided. Therefore, it is disadvantageous that correspondingly different rail sliders have to be provided, which is undesirably expensive, especially with regard to the necessary tools and tolerance adjustments.

The invention is based on the object of specifying a particularly suitable vehicle window regulator (window regulator or window regulator assembly of a motor vehicle) in which the disadvantages mentioned are avoided. In particular, the rail slider should be usable for guide rails of different rail thicknesses.

According to the invention, this object is achieved in a window lifter with a rail slider without a sliding insert with the features of claim 1 and in a window lifter with a rail slider with a sliding insert having the features of claim 2. Advantageous refinements and developments are the subject of the subclaims.

The vehicle window lifter (window lifter or window lifter assembly of a motor vehicle) is used to move a vehicle window (window pane of the motor vehicle) and has at least one guide rail and a rail slider, which is guided along the guide rail and coupled to the vehicle window, one with an adjustment drive, in particular an electric motor coupled pull rope engages directly on the rail slider or on a carrier connected to this. The guide rail can be made of metal (steel or aluminum) or made of a plastic material.

The rail slider can have a base body (rail slide base body) with a guide area in the form of a, in particular claw-like, rail wraparound for receiving a profile section of the guide rail and a slide insert which is joined to the base body in its guide area, in particular clipped or latched into it. Without a slide insert, the rail slider has the guide area, which acts as a rail wrap-around, for receiving a profile section of the guide rail. The guide area on the slide side or the slide insert is preferably made of polyoxymethylene (POM) with or without glass fiber reinforcement.

The profile section of the guide rail encompassed by the guide area on the slide side comprises a first profile leg oriented transversely to the longitudinal direction of the rail (longitudinal direction of the guide rail) and a second profile leg oriented transversely to this and to the longitudinal direction of the rail. This connects to the first profile leg so that the two profile legs form an L-shape. The guide rail can have a double L-shaped or Z-shaped or S-shaped or hat-shaped cross-section in the manner of a top-hat rail, while the profile section of the guide rail is L-shaped in cross-section.

The guide area on the slider side has a first sliding leg that overlaps the first profile leg and the second profile leg of the profile section of the guide rail, and a second slide leg that engages behind the two profile legs of the profile section of the guide rail, the first slide leg and the second slide leg at least partially on the first profile leg and / or rests on the second profile leg of the profile section of the guide rail.

The first profile leg and / or the second profile leg of the profile section of the guide rail has a widened cross section. The cross-sectional broadening of the first profile leg and / or of the second profile leg suitably forms at least one contact point on the first slide leg and / or on the second slide leg of the rail slider or its slide insert.

In an advantageous embodiment, a convexly curved contact contour facing the respective profile leg of the profile section of the guide rail is provided on the first slide leg and / or on the second slide leg of the rail slider or its slide insert. The first and / or second sliding leg of the rail slider or its sliding insert with the respective contact contour is expediently in contact with a corresponding contact point of the first and / or second profile leg of the profile section of the guide rail.

The first and / or the second profile leg of the profile section of the guide rail expediently has at least one projection oriented in the direction of the first and / or the second slide leg of the rail slider or the slide insert.

According to a particularly advantageous embodiment, the cross-sectional widening of the first profile leg and / or of the second profile leg of the profile section of the guide rail is produced by an embossing made therein. In other words, a pressed step with a defined shape is introduced into the guide rail or into the corresponding profile section on the slide side, the embossing - in contrast to a bead with a channel-shaped recess - having a base area located in the step.

Particularly advantageously, the guide area on the slide side always has the same gap size for different rail thicknesses of the guide rail. This is dimensioned for the greatest rail thickness. With smaller rail thicknesses, the gap dimension is compensated for by means of the cross-sectional broadening of the first profile leg and / or the second profile leg, that is, if the rail thickness of the guide rail is smaller than the gap dimension of the guide area on the slide side.

The advantages achieved with the invention are in particular that the rail slider can be provided as a common part for different rail thicknesses through a targeted widening of the cross section of the guide rails in the area of the profile section guided into the guide area on the slider side. The cross-sectional broadening of the guide rails can be produced in a suitable and inexpensive manner by targeted embossing in the area of the rail-side profile section of the respective guide rails of different rail thicknesses. In addition, the adaptation of the interface between the rail slider and the guide rail is standardized and simplified. Furthermore, the number of tools to be provided is reduced and a cost saving is achieved.

• 1 in einer Draufsicht einen Seilfensterheber als Fahrzeugfensterheber oder Fensterheberbaugruppe mit einem Träger (Trägerbauteil) und mit entlang zweier Führungsschienen geführten Schienengleitern für eine Kraftfahrzeug-Fensterscheibe sowie mit einem mit den Schienengleitern und mit einem Verstellantrieb gekoppelten Zugseil, das abschnittsweise an trägerfesten Umlenkelementen in Form von drehbar gelagerten Seilrollen und trägerfesten Umlenkstücken geführt ist,
• 2 in perspektivischer Darstellung den Schienengleiter auf einem Profilabschnitt der Führungsschiene mit Blick auf die Schienenrückseite der Führungsschiene,
• 3 in einer Seiten- oder Schnittdarstellung den in einem Führungsbereich des Schienengleiters einsitzenden Profilabschnitt der Führungsschiene mit einer Verprägung zur Querschnittsverbreiterung in den beiden zueinander L-förmig angeordneten Profilschenkeln des Profilabschnitts, und
• 4 in einer Darstellung gemäß 3 den Schienengleiter mit einem Gleiteinsatz.

Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. Show in it:

• 1 In a top view a cable window lifter as a vehicle window lifter or window lifter assembly with a carrier (carrier component) and with rail sliders for a motor vehicle window pane guided along two guide rails as well as with a pull cable coupled to the rail sliders and with an adjustment drive, which is partially attached to the carrier-mounted deflection elements in the form of rotatably mounted deflection elements Pulleys and deflection pieces fixed to the carrier are guided,
• 2 a perspective view of the rail slider on a profile section of the guide rail with a view of the rear side of the guide rail,
• 3 in a side or sectional view of the profile section of the guide rail seated in a guide area of the rail slider with an embossing to broaden the cross-section in the two relative to one another L-shaped profile legs of the profile section, and
• 4th in a representation according to 3 the rail glider with a glide insert.

Corresponding parts are provided with the same reference symbols in all figures.

1 shows in a top view a vehicle window lifter, also referred to below as a window lifter or window lifter assembly 1 with one subsequently as a carrier 2 designated carrier component, which (which) is advantageously made of a plastic and is thus a plastic component. On the carrier 2 are two (essentially) parallel guide rails 3 mounted on which rail gliders 4th are slidably guided with a driver function. On the rail glider 4th is a dashed window pane 5 held. The rail gliders 4th or their driver spacers are with a pull rope 6th connected as a flexible traction device, which is deflected several times and with an electromotive adjustment drive 7th is coupled. This drives, for example, a (not visible) cable drum, which is looped around several times by the pulling cable in the manner of a winding.

As a deflection device 11 is in the exemplary embodiment at the upper rail ends of the guide rails 3 one rope pulley (deflection pulley) each 8th provided, which on the carrier-side bearing journals 9 is rotatably mounted. The bearing journals 9 are preferably made from the material of the carrier 2 shaped. The bearing journals 9 can also be attached to the respective guide rails 3 be attached or formed from these. The guide rails 3 can be made of metal (steel or aluminum) or of the material of the carrier 2 , so made of plastic, or molded out of this and thus be part of the carrier.

In the exemplary embodiment, the guide rails are in the area of the lower rail ends 3 semicircular, non-rotating deflection elements 10 provided, which are preferably also made of the material of the carrier 2 are shaped. About these non-rotating deflection elements 10 and via the rotatably mounted pulleys 8th becomes the pull rope 6th over along the guide rails 3 running pull rope sections in between the guide rails 3 Diagonally running and crossing pull rope sections diverted. The adjustment drive 7th is arranged in one of these diagonal pull rope sections. Instead of the non-rotatable deflection elements 10 can in the area of the lower rail ends of the guide rails 3 pulleys mounted rotatably on the carrier side can also be provided.

A rotational movement of the cable drum in one direction of rotation leads to the winding up of one end of the cable and, at the same time, to the unwinding of the other cable end of the pull cable 6th . As a result, the respective rail slider becomes the respective rail slider in this direction of rotation of the cable drum 4th up or down and thus the window pane 3 driven in the closing direction or open position. The rail glider slides in the opposite direction of rotation of the cable drum 4th along the guide rail 3 in the corresponding direction downwards or upwards with the result that the window pane 3 is guided in the opening direction or in the longitudinal direction of the rail.

the 2 shows the rail glider 4th in its slidable connection with the guide rail 3 . The window glass 5 is by means of disc holders 11 for example by clamping it to the rail slider 4th tied up. The rail glider 4th thus has the functionality of a sliding element and the function of the pane holder (pane entrainment). The rail glider 4th (with driver function) can therefore also be referred to as driver (with rail glider function). In the following, the term “rail glider” will be used throughout.

The rail glider 4th has one as a rail wrap 12th effective management area formed by this 13th on. This is an approximately L-shaped hollow chamber with a rail that is as thick as possible d the guide rail 3 designed gap dimension s ₁ , s ₂ ( 3 and 4th ). The leadership area 13th encompasses an L-shaped profile section 14th the guide rail 3 . In the management area 13th can be a sliding insert provided, for example, as a separate component 15th ( 4th ) be included.

the 3 and 4th show a detail of the rail glider 4th and the relevant profile section 14th the guide rail 3 in a side or sectional view with a view of the guide area 13th in which the profile section 14th sits or which embraces this. When running after 4th points the rail glider 4th the sliding insert 15th on, which is in a base body (rail slider base body) 4a of the rail glider 4th in the area of its rail wrap 12th inserted (clipped or locked) and there the guide area 13th forms.

When executing according to 3 without a sliding insert, the rail glider 4th directly as the rail wrap 12th effective leadership area 13th to accommodate the profile section 14th the guide rail 3 on. The guide area on the slide side 13th or the sliding insert 15th consists preferably of polyoxymethylene (POM) with or without glass fiber reinforcement.

The one from the guide area on the slide side 13th wrapped profile section 14th the guide rail 3 has a transverse to the longitudinal direction of the rail ( Longitudinal direction of the guide rail) L oriented first profile leg 14a and one for this and for the longitudinal direction of the rails L. transversely oriented second profile leg 14b on that of the first profile leg 14a connects. This creates the two profile legs 14a and 14b an L shape. The guide rail 3 can be double-L-shaped or Z-shaped in cross-section.

In the exemplary embodiment, both profile legs have 14th a and 14b of the profile section 14th the guide rail 3 an embossing introduced into this 16 whose pressed level with a defined shape in the 3 and 4th can be seen. The stampings 16 form projections at steps or transition points from the embossing 16 formed leg sections along the step planes of the profile legs 14a and 14b . The step planes are offset from one another in such a way that along the first profile leg 14a or that of the second profile leg 14b of the profile section 14th the guide rail 3 a cross-sectional broadening is formed. In other words, the embossed profile legs are 14a , 14b as a result of the corresponding reshaping in step form to the gap dimension s ₁ , s _{2 of} the guide area 13th of the rail glider 4th customized.

The guide area on the slide side 13th has a first sliding leg 17a and a second slide leg 17b on. These form the rail wrap 12th and limit the management area 13th of the rail glider 4th or the sliding insert 15th . The first sliding leg 17a overlaps the first profile leg 14a and the second profile leg 14b of the profile section 14th the guide rail 3 . The second sliding leg 17b engages behind or under the two profile legs 14b of the profile section 14th the guide rail 3 . The first sliding leg 17a and the second sliding leg 17b are partially on the first profile leg 14a and on the second profile leg 14b of the profile section 14th the guide rail 3 at.

The one through the imprints 16 provided cross-sectional broadening of the first profile leg 14a and the second profile leg 14b forms a contact point on the first sliding leg 17a and on the second sliding leg 17b . On the first sliding leg 17a and on the second sliding leg 17b are convexly curved contact contours 18th provided that the respective profile leg 14a respectively. 14b of the profile section on the rail side 14th are facing. At these local (partial) system contours 18th are the embossed profile legs 14a , 14b with their contact points. Two system contours can be seen in each case 18th on opposite sides of the respective profile leg 14a , 14b provided and arranged at a distance from one another. These two plant contours 18th each form a contact pair for the first profile leg 14a and for the second profile leg 14b .

As indicated by the gap dimension lines in the 3 and 4th illustrated is the respective gap dimension s ₁ , s ₂ on the first profile leg 14a , and on the second profile leg 14b between the spaced-apart, opposing contact contours 18th of the first sliding leg 17a and second sliding leg 17b certainly.

The same applies to the execution according to 4th with sliding insert 15th of the rail glider 4th the respective gap dimension s ₁ , s ₂ on the first profile leg 14a and on the second profile leg 14b between the spaced-apart, opposing contact contours 18th of the first sliding leg 17a and the second sliding leg 17b of the sliding insert 15th certainly.

The guide area on the slide side 13th points for different rail thicknesses d the guide rail 3 always the same gap dimension s ₁ , s ₂ , that of the greatest rail thickness d dimensioned (set or specified). The gap dimension s ₁ , s ₂ is determined by the distance, that is, by the clear width between the contact surfaces of the inward into the guide area 13th of the rail glider 4th (convexly arched) contact contours directed into it 18th the sliding leg 17a and 17b .

With smaller rail thicknesses d is the gap dimension s ₁ , s ₂ by means of the cross-sectional broadening of the first and / or the second profile leg 14a , 14b balanced when the rail thickness d the guide rail 3 is smaller than the gap dimension s ₁ , s _{2 of} the slider-side guide area 13th . This compensation of the rail thickness d to the gap dimension s ₁ , s _{2 of} the guide area 13th takes place through appropriately dimensioned steps, the step height of which depends on the size of the embossing 16 of the respective profile section 14th the guide rail 3 is determined. In other words, the measure is the one with the stamping 16 caused deformation of the profile legs 14a , 14b of the profile section 14th the guide rail 3 depending on the rail thickness d and the more pronounced, the smaller the rail thickness d the respective guide rail 3 is. The cross-sectional broadening of the profile legs 14a , 14b thus complements the respective rail thickness d to the gap dimension S1, S2.

In summary, the vehicle window regulator according to the invention 1 at least one guide rail 3 and one that is guided along this and with a vehicle window that is to be displaced 5 coupled rail slider 4th on, the one as a rail wrap 12th effective leadership area 13th for receiving a profile section 14th the guide rail 3 having, the one from the guide area 13th wrapped profile section 14th a transversely to the longitudinal direction of the rail L. oriented first profile leg 14a and one for this and for the longitudinal direction of the rails L. transversely oriented second profile leg 14b having, wherein the first and / or the second profile leg 14a , 14b has a cross-sectional broadening, wherein the guide area 13th one the first and the second profile leg 14a , 14b overarching first sliding leg 17a as well as one of the two profile legs 14b second sliding leg engaging behind 17b having, and wherein the first and the second slide leg 17a , 17b at least partially on the first and / or on the second profile leg 14a , 14b is present.

The claimed invention is not restricted to the exemplary embodiments described above. Rather, other variants of the invention can also be derived therefrom 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.

List of reference symbols

1

Window regulator assembly

2

Carrier / component

3rd

Guide rail

4th

Rail glider

4a

Carrier

5

Window pane

6th

Pull rope

7th

Adjustment drive

8th

Rope / pulley

9

Journal

10

Deflection element

11

Deflection device

12th

Rail wrap

13th

Leadership area

14th

Profile section

14a

first profile leg

14b

second profile leg

15th

Sliding insert

16

Stamping

17a

first sliding leg

17b

second sliding leg

18th

System contour

d

Rail thickness

s1,2

Gap dimension / surface spacing

L.

Longitudinal direction of the rail

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102018213360 A1 [0003]
• DE 102018213172 A1 [0005]

Claims (10)

Vehicle window lifter (1) for moving a vehicle window (5), having at least one guide rail (3) and a rail slider (4) guided along the guide rail (3) and coupled to the vehicle window (5), on which a Adjusting drive (7) engages coupled pull rope (6), - wherein the rail slider (4) has a guide area (13) acting as a rail wrap-around (12) for receiving a profile section (14) of the guide rail (3), - wherein the profile section (14) of the guide rail (3) encompassed by the guide region (13) of the rail slider (4) has a first profile leg (14a) oriented transversely to the longitudinal direction (L) of the rail and a second profile leg (14a) oriented transversely to this and to the longitudinal direction (L) of the rail ( 14b), - wherein the first profile leg (14a) and / or the second profile leg (14b) of the profile section (14) of the guide rail (3) has a widened cross-section, - wherein the guide area (13) of the rail slider (4) has a first sliding leg (17a) that crosses the first profile leg (14a) and the second profile leg (14b) of the profile section (14) of the guide rail (3) and one of the two profile legs (14b) of the profile section (14) of the guide rail (3) having a second sliding leg (17b) engaging behind, and - The first sliding leg (17a) and the second sliding leg (17b) at least partially resting on the first profile leg (14a) and / or on the second profile leg (14b) of the profile section (14) of the guide rail (3). Vehicle window lifter (1) for moving a vehicle window (5), having at least one guide rail (3) and a rail slider (4) guided along the guide rail (3) and coupled to the vehicle window (5), on which a Adjusting drive (7) engages coupled pull rope (6), - wherein the rail slider (4) with a rail slider base body (4a) with the guide area (13) in the form of a, in particular claw-like, rail wrap-around (12) for receiving a profile section (14) of the guide rail (3) and with a slide insert (15) , which is joined to the rail slider base body (4a) in its guide area (13), - The profile section (14) of the guide rail (3) encompassed by the slide insert (15) in the guide area (13) of the rail slider (4) has a first profile leg (14a) oriented transversely to the longitudinal direction (L) of the rail and a transverse to this and to the longitudinal direction (L) of the rail has oriented second profile leg (14b), - wherein the first profile leg (14a) and / or the second profile leg (14b) of the profile section (14) of the guide rail (3) has a widened cross-section, - wherein the sliding insert (15) has a first sliding leg (17a) that crosses the first profile leg (14a) and the second profile leg (14b) of the profile section (14) of the guide rail (3) and one of the two profile legs (14b) of the profile section (14) the guide rail (3) has a second sliding leg (17b) engaging behind it, and - The first sliding leg (17a) and the second sliding leg (17b) at least partially resting on the first profile leg (14a) and / or on the second profile leg (14b) of the profile section (14) of the guide rail (3). Vehicle window regulator (1) Claim 1 or 2 , characterized in - that the cross-sectional broadening of the first profile leg (14a) forms at least one contact point on the first sliding leg (17a) and / or on the second sliding leg (17b), and / or - that the cross-sectional broadening of the second profile leg (14b) forms at least one contact point forms on the first sliding leg (17a) and / or on the second sliding leg (17b). Vehicle window lifter (1) according to one of the Claims 1 until 3 , characterized in that on the first sliding leg (17a) and / or on the second sliding leg (17b) there is provided a convex contact contour (18) facing the respective profile leg (14a, 14b) of the profile section (14) of the guide rail (3). Vehicle window regulator (1) Claim 4 , characterized in that the first and / or the second sliding leg (17a, 17b) with its contact contour (18) at a corresponding contact point of the first and / or the second profile leg (14a, 14b) of the profile section (14) of the guide rail ( 3) is present. Vehicle window lifter (1) according to one of the Claims 1 until 5 , characterized in that the guide rail (3) is double-L-shaped or Z-shaped in cross section and the profile section (14) of the guide rail (3) is L-shaped in cross section. Vehicle window lifter (1) according to one of the Claims 1 until 6th , characterized in - that the first profile leg (14a) of the profile section (14) of the guide rail (3) has at least one projection oriented in the direction of the first and / or the second slide leg (17a, 17b), and / or - that the second profile leg (14b) of the profile section (14) of the guide rail (3) has at least one projection oriented in the direction of the first and / or the second slide leg (17a, 17b). Vehicle window lifter (1) according to one of the Claims 1 until 7th , characterized in that the cross-sectional broadening of the first profile leg (14a) and / or the second profile leg (14b) of the profile section (14) of the guide rail (3) is produced by an embossing (16) made in this. Vehicle window lifter (1) according to one of the Claims 1 until 8th , characterized in that the guide area (13) on the slide side has a gap dimension (s ₁ , s ₂ ) that is always the same for different rail thicknesses (d) of the guide rail (3), which corresponds to the rail thickness (d) of the guide rail (3) or by means of the Cross-sectional broadening of the first profile leg (14a) and / or of the second profile leg (14b) is balanced when the rail _{thickness (d) of the guide rail (3) is smaller than the gap dimension (s 1} , s ₂ ) of the slide-side guide area (13). Vehicle window lifter (1) according to one of the Claims 1 until 9 , characterized in - that the guide rail (3) consists of a plastic material, and / or - that the slide-side guide area (13) or the slide insert (15) consists of polyoxymethylene (POM), in particular with a glass fiber reinforcement.

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