DE4002274A1 - Window lifting drive - has slide face of spring material snapping over guide rail rib - Google Patents

Abstract

The drive is for a window-life travelling along a guide rail, and has slides working against the latter, and a chamber accommodating two driving-rope thimbles. The rope passes through slots in the chamber end walls. - The guide face (22) of one slide (2) at least is of spring material, to snap over one of the ribs (82) of the guide rail (8). The thimble chamber forms a rib (4) on the driving member, working between the ribs (82,94) of the rail.

Description

The invention relates to a driver for a window lifter according to the preamble of claim 1.

From DE-OS 30 23 641 a driver for a fen known in a motor vehicle by a Power transmission link in the form of a drive cable, one Threaded cable or a boom along a Füh tion rail movable and on which a window pane is feasible. The guide rail has a CLOSE profile two U-leg walls on, of which the left leg wall with a right-angled edge strip see is.

A sliding element of the driver is on both sides of the substantially parallel to the window pane surface tion bar of the guide rail, with a sliding surface of the sliding element is resilient, so that the the window pane rigidly connected driver due to the inserted through the resilient part of the sliding element Movement play perpendicular to the window pane surface distance from the setpoint to the guide rail can take.

In an alternative embodiment, the guide rail with two guide rails on both sides of a U- Profiles be provided so that the appropriate Mitneh mer has two sliding elements, the guide rails include positively. To the driver on the leadership  To be able to mount the rail, at least one of the the sliding elements be designed to be resilient, so that after attaching the driver to one of the two Guide strips by pressing the driver onto the Guide rail yields the resilient sliding element and works over the assigned guide bar and this encloses positively.

The driver is driven by a drive cable that has one or two rope nipples, which the driving force transferred to the carrier. To accommodate the Rope nipple serves a nipple chamber, so that the pulling force of the drive cable on the driver and thus on the the window pane connected to the driver is transmitted, the directly or indirectly via a holding rail on Carrier is attached. In one of the side walls of the nip pelkammer is an insertion opening formed as Zu to the roughly cube-shaped interior of the nipple chamber serves. The nipples attached to the rope ends or the Rope fastened nipples are or will be through the one guide opening inserted into the interior of the nipple chamber. The respective drive cable moves along one Slot until it reaches the slot end in the area of the flä middle of the respective end wall of the nipple chamber reaches.

To improve the anchorage of the receiving chamber are Fixing holes from a base plate of the driver punches and filled with plastic material that in the the lower side wall of the nipple chamber merges. Additional Sidewalls serve to support the end walls of the  Nipple chamber. The nipple chamber reinforced in this way for the rope nipple (s) can therefore also be a big pull withstand forces and these easily on the driver transfer.

To with a loose rope, e.g. B. during the assembly of the Window lifter, the rope nipple (s) falling out to prevent from the nipple chamber are in the area of Insertion opening on the upper and lower side wall attached to the nipple chamber noses, their clear distance is slightly smaller than the diameter of a rope nipple. To insert the rope nipple, either the contra stand that the noses offer, overcome or the rope nip pel be introduced in an area free of the Nose is.

This form of securing the rope nipple against one Jumping out of the nipple chamber is essentially only sufficient for drive cables that are inside the U- shaped slide rail of the guide rail or for such guide rails, the bending radius of which is very large, so that the tight distance of the tight an drive cables from the curved guide rail.

With drive cables outside the guide rail and for guide rails with a bending radius smaller than for example, 1500 mm, there is a risk of coming out sliding of the rope nipple and thus an unwanted ten sliding down of the driver and thus the window disc on the guide rail with the risk of a Zer malfunction of the functional mechanism and the window pane.  

From the US-PS 39 58 300 is a stapler knows, which consists of two L-shaped bracket halves, the are interconnected and each have an L-shaped groove exhibit. To close the connected halves Snap hooks are provided in one half of the bracket hen while in the other half of the bracket locating hole are arranged so that when joining the two Halves the snap hooks in the mounting holes snap in and lock the two halves. It is the length of the snap hook and the depth of the locating hole stations dimensioned so that when pulling the The snap connection is released again, so that this type of connection is only for Schnappver is suitable for bindings with low forces mechanism.

From DE-OS 33 45 821 is a connection fuse for known as flexible shafts with a flexible shaft soul, in which the wave soul with an elastic jacket tube is surrounded, the end with heel sleeves for connection on the motor, transmission or device-side mounting sleeves connected is. The receiving sleeve has a snap-in receptacle for a safety clip covering the heel sleeve on, the locking clip spring fingers with stops has that in an undercut of the receiving sleeve intervene and thus the position of the parts one above the other backs up. The spring fingers have a sufficient length sufficient elasticity, but there is Ge drive that when the spring fingers snap into the rear cut or a breakage when notching is required the spring finger occurs, so that this type of connection only  is suitable for relatively low forces on the parts to be connected are exercised.

Fig. 1 shows a side view of a known driver inserted into a guide rail. The driver is be made of a sliding web 4, the carrying track from the U-profile of the Füh 8 covered and which encloses a form-fitting with sliding elements 2, 3 the guide rails 82, 84 of the guide rail. 8 One, rigid sliding element 3 has a sliding surface 30 and a slot-shaped guide surface 31 , 32 which is placed on the guide bar 84 of the guide rail 8 .

The other sliding element 2 also has a sliding surface 20 and a guide surface 21 , 22 which is formed by a snap hook 200 which is movable in the direction of the arrow A according to FIG. 1.

The window pane is gripped by a pane holder 6 and locked by means of a fastening hole 5 for the adjusted pane fastening on the driver. The force transmission member in the form of a drive cable, a threaded cable or a gear arm to be connected to the driver Ge is received in a receiving chamber 70 , wherein in the case of a gear cable or a gear cable rope slots 70 are used for pulling the rope or cable.

FIG. 2 shows an individual representation of the movement of the snap hook when clipping onto the guide rail 8 according to FIG. 1. By plugging the rigid sliding element 3 onto the guide bar 84 of the guide rail 8 and then clipping on the snap hook 200 according to FIG. 2, the snap hook 200 becomes so far in the direction of the arrow A of FIG. 1 is moved back, that the carrier can be plugged completeness, dig into the guide rail 8 and the sliding web 4 of the driver is completely surrounded by the U-profile of the guide rail 8.

In this position, the spring-elastic sliding element 2 after the snap-back hook 200 snaps back form-fittingly the guide bar 82 of the guide rail 8 and forms a guide channel with the sliding surface 20 and the guide surfaces 21 , 22 of the snap hook 200 , so that the driver is loosely in the guide rail 8 of the Fensterhe bers is guided and is movable along the guide rail 8 by means of the force transmission member.

Since the length of the snap hook 200 is predetermined by the size of the guide channel d for receiving the guide bar 82 of the guide rail 8 , only a short snap hook 200 can be provided because of the small thickness of the guide bar 82 . Due to the short length, the snap hook 200 has only limited elasticity, so that there is a risk that it will break off when the driver is clipped onto the guide rail. If the Schnappha ken made more stable by appropriate cross-sectional enlargement, it is only extremely difficult and sometimes no longer to clip at all, so that the assembly of the driver on the guide rail is only possible with tools or no longer possible.

The use of a soft, elastic material for a driver leaves for reasons of stability of the Driver and the necessary sliding properties of the Mit on the guide rail and for reasons of Dimensional stability of the driver to transfer the necessary forces to raise and lower the window pane out.

The object of the present invention is a driver for a window regulator of the type mentioned at the beginning create a safe function through a form stabilizer le, safe installation on the guide rail of a window guaranteed lifter, the mon animal that ensures that an unintended Removal of the driver from the guide rail excluded can be and the secure fixation of a position or two nipples in the nipple chamber of the driver and so that the nipple or slides out even when strong bent guide rails prevented.

This task is characterized by the characteristic of Claim 1 solved.

The solution according to the invention provides a stable, form coherent connection of driver and guide rail safe because due to the length of the locking cam the snap path ruled out breaking the mechanism can be and thicker wall thicknesses of the resilient Sliding element can be executed.

At the same time, easier assembly is ensured, since the wedge-shaped chamfer of the locking cam a ge  wrestle effort when clipping the resilient Allows sliding element on the guide rail. The Ab clip the resilient sliding element from the guide The guide rail is without by wedging the locking cam Aids are not possible because, in contrast to the be knew snap hooks of the locking cams more and more firmly around the Guide bar of the guide rail sets.

In addition, the solution according to the invention ensures that the nipple (s) are held securely in the nipple chamber be, even if the driver in connection with a strongly curved guide rail is used. That si Prevent the nipple from jumping out provides a permanent functional mechanism of the fen dying. At the same time, easy assembly of the Window lifter by simply pushing in the Rope nipple in the nipple chamber with simultaneous locking guarantee the nipple (s) in the nipple chamber continuous

An advantageous embodiment of the Lö according to the invention solution is characterized in that the securing element is connected to a wall of the nipple chamber and into the Insertion opening of the nipple chamber protrudes. The safe tion element designed and arranged at the same time that it allows insertion of a nipple into the nipple chamber, an opposite movement of the nipple the introducer But if the opening is blocked, assembly will also be easier tert and a permanent connection of the nipple with the Carrier guaranteed.

Advantageous developments of the invention are in the Un claims marked or become below together with the description of the preferred embodiment of the Invention illustrated with reference to the figures. Show it:

Figure 1 is a side view of a known driver.

Fig. 2 is a schematic representation of the movement of a snap hook;

Figure 3 is a side view of a driver with Rastnok ken.

Figure 4 shows a section through a driver mounted on a guide rail with locking cams.

Fig. 5 is a bottom view of the carrier shown in FIGS. 3 and 4;

Figure 6 is a side view of the resilient sliding element of the driver.

Fig. 7 is a plan view of the driver;

Fig. 8 is a schematic representation of the movement of the locking cam a spring-elastic sliding member according to Figures 3 to 7.

Fig. 9 is a side view on and

Figure 10 shows a cross section through a nipple chamber of a driver with a first variant of a hedging element.

Fig. 11 is a side view of and

Fig. 12 shows a cross section through a nipple chamber with egg ner second variant of a securing element.

Designate in the following description of the figures same reference numerals same parts of the different dar positions of the driver according to the invention.

The driver 1 consists of a base plate 10 which has 4 sliding elements 2 , 3 on both sides of a sliding web. The slide web 4 is in the assembled state on egg ner guide rail of a window lifter from the sides 80 , 81 , 83 comprises a U-profile of the guide rail 8 , from which two guide strips 82 , 84 extend at right angles. The guide strips 82 , 84 are positively embraced by the two sliding elements 2 , 3 of the driver 1 , so that in the necessary frontal mounting of the driver 1 on the guide rail 8 measures are required to enable the positive connection of the driver 1 with the guide rail 8 , so that the driver 1 is slidably movable along the guide rail 8 perpendicular to the plane of the drawing ( Fig. 4).

Both sliding members 2, 3 of the driver have rigid sliding surfaces 20, 30 which provide approximately on the one side of the Füh 82, 84 rest against the guide rail. 8 The rigid sliding element 3 also has rigid guide surfaces 31 , 32 , which form a guide channel for receiving the one guide bar 84 , the guide channel being formed by a part of the driver projecting in the direction of the sliding web 4 of the driver 1 .

The resilient sliding element 2 has guide surfaces 21 , 22 which, in the assembled state of the driver, also form a guide channel in which the other guide strip 82 of the guide rail 8 is received. For the positive connection of the driver 1 with the guide rail 8 , the resilient sliding element 2 consists of a locking cam 23 in conjunction with a Nockenrah men 24 to 29 as shown in FIG. 6th

The cam frame consists of an inner leg 27 which adjoins the base plate 10 of the driver and two side legs 24 , 25 which extend perpendicularly from the inner leg 27 and thus from the sliding surface 20 and which are connected to one another at the opposite end by an outer leg 26 .

The outer leg 26 is connected to the locking cam 23 , so that a U-shaped slot is formed between the locking cam 23 and the side legs 24 , 25 and the inner leg 27 of the cam frame and the locking cam 23 is accordion-shaped about the "pivot point" of the outer leg 26 .

To reinforce the stability of the side legs 24 , 25 struts 28 , 29 are provided, which preferably have a three corner-shaped cross-sectional profile that extends from the outer leg 26 to the inner leg 27 and thus increases the stability of the spring-elastic sliding element 2 . To illustrate the individual elements are used in Fig. 6 hatching of the side legs 24 , 25 , the outer leg 26 and the inner leg 27 in one Rich direction and the struts 28 , 29 in the other direction and a cross-hatching of the locking cam 23rd

Serves for attaching a window pane 11 in FIG. 5 on the carrier 1 a hook-shaped disk holder 6, which forms with the base plate 10 a slot is inserted into the one edge of the window glass 11. A de fi ning hole 5 in the rigid sliding element 3 of the driver serves for de fi ned disk fastening.

The power transmission device in the form of a drive cable, a threaded cable or a link arm of a window lifter is connected to the driver 1 by means of a receiving chamber 7 , in the case of a drive cable or a threaded cable cable slots 70 being provided on both sides of the driver 1 , through which the drive cable , Threaded cable or the like can be inserted into the receiving chamber and connected to the driver 1 there by means of suitable fastening devices.

Fig. 7 illustrates in a plan view with dash-dot line shown guide rail 8, the connection of the driver 1 with the guide rail 8 and the arrangement of the sliding elements 2 , 3 in relation to the guide rails 82 , 84 of the guide rail 8th

Fig. 8 illustrates in comparison to the known fastening supply type of the driver by means of a snap hook on egg ner guide rail, the functional mechanism of the Rastnok kens during assembly or disassembly of the driver on the guide rail 8th

The longer clip arm formed by the locking cams according to the invention with an accordion-like fold forms a long insertion slope in the direction of arrow B, on which the outer edge of the guide rail 82 of the guide rail 8 when the driver is clipped onto the guide rail 8 can slide along. When attaching the follower to the guide rail 8 while the detent is cam in the broken line position moved so as to slide back with more fully mounting of the driver 1 on the guide rail 8 of the locking cams and forms the positive guide channel for receiving the guide bar 82nd

To unclip the resilient sliding element from the guide bar 82 , an opposite movement is carried out, the U-shaped slot according to FIG. 6 serving to attach a suitable assembly instrument and to move the locking cams back so far that by pulling the driver off the guide rail tion bar 82 of the guide rail 8 comes with its outer edge to rest on the insertion slope of the locking cam 23 and thus a removal of the driver from the guide rail is made possible.

FIGS. 9 and 10 show a detailed view of a nip pelkammer 7 of a carrier, which a driver is disposed in the sliding web 4, which is surrounded by the U-profile or profile of a guide rail with two guide rails in a manner not shown. Here, FIG. 9 shows the view sliding stem or the nipple chamber in a Seitenan, while Fig. 10 shows the sliding web and the nipple chamber in cross section.

At the end faces 48 , 49 of the nipple chamber 7 , slots 70 , 71 are provided, which are used to insert the drive cable 9 , of which a part of the nip pelkammer 7 is shown in FIG . To connect the drive cable 9 to the driver, a nipple 90 is provided, which is inserted into the nipple chamber through an insertion opening 75 according to FIG. 10 and preferably has a hexagonal cross section.

The nipple chamber 7 has outer walls 40 , 41 , 42 and an insertion opening 75 in an outer wall.

For fixing the position of the nipple 90 in the nipple chamber 7 in a wall 41 of the fitting chamber 7 is a securing tongue 43 is provided, the end of which is directed onto or into the opening 75 of the nipple chamber. 7 Above the securing tongue 43 there is an opening 44 in the wall 41 of the nipple chamber 7, so that the securing tongue is pressed into the opening 44 43 during insertion of the nipple 90 into the fitting chamber 7, after complete insertion of the nipple 90 to the nipple chamber 7 but springs back again so that the nipple 90 is aretted in the nipple chamber 7 .

Removal of the nipple 90 from the nipple chamber 7 is only possible by pushing back the locking tongue 43 into the opening 44 of the wall 41 , so that accidental jumping out of the nipple 90 from the nipple chamber 7 is prevented, for example due to a greater curvature of the guide rail .

Fig. 11 also shows a side view of a nipple chamber and Fig. 4 shows a cross section through a nipple chamber, the same reference numerals as used in Figs. 9 and 10 denote the same parts.

In this embodiment, a safety wedge 45 is provided on or in front of the opening 75 of the nipple chamber 7 instead of a safety tongue. The locking wedge 45 has egg ne slope 46 , which is directed to the insertion opening 75 of the nipple chamber 7 . Also in this embodiment, there is an opening 44 in the wall 41 between the securing wedge 45 and the outer wall 40 , into which the securing wedge 45 can dodge pelkammer 7 when the nipple 90 is inserted into the nip.

If the nipple 90 is inserted into the nipple chamber 7 , the securing wedge 46 , which protrudes into the opening 75 of the nipple chamber 7 , effectively prevents the nipple 90 from unintentionally jumping out of the nipple chamber 7 and thus a malfunction of the entire window lifter.

The invention is not restricted in its implementation to the preferred embodiment given above game. Rather, a number of variants are conceivable which of the solution shown also in principle make use of different types.

Claims (11)

1. Driver for a window lifter, which is movable along a guide rail having guide rails and to which a window pane can be attached, the driver sliding elements with sliding surfaces and guide surfaces, which lie on the guide rails of the guide rail, and a nipple chamber with an insertion opening for insertion and for receiving two nipples, which are connected to a drive cable or cable which is guided through slots on the end walls of the nipple chamber, characterized in that the guide surface ( 22 to 29 ) at least one sliding element ( 2 ) is designed to be resilient and can be snapped over one of the guide strips ( 82 ) of the guide rail ( 8 ), and that the nipple chamber ( 7 ) is designed as a sliding web ( 4 ) of the driver ( 1 ), which perform between the guides ( 82 , 84 ) of the guide rail ( 8 ) runs. 2. Driver according to claim 1, characterized in that the resilient Füh approximately surface ( 22 to 29 ) has a cam frame ( 24 to 29 ), the outer leg ( 26 ) with two side legs ( 24 , 25 ) is connected, which essentially protrude perpendicularly from the sliding surface ( 20 ) of the sliding element ( 2 ) with spring elastic guide surface ( 22 to 29 ), and that the outer leg ( 26 ) is connected to a latching cam ( 23 ) which connects one from the outer leg ( 26 ) to the sliding surface ( 20 ) has increasing cross-section. 3. Driver according to claim 2, characterized in that the latching cam ( 23 ) forms a triangular cross-section, the Hypuse nuse as a sliding surface for engaging the guide bar ( 82 ) of the guide rail ( 8 ) during assembly of the driver ( 1 ) the guide rail ( 8 ) is used. 4. Driver according to claim 2 or 3, characterized in that the height of the Nockenrah mens ( 24 to 29 ) is equal to the height of a sliding web ( 4 ) of the driver ( 1 ) around which the U-profile of the guide rail ( 8th ) in the assembled state of the driver ( 1 ). 5. Driver according to one of the preceding claims, characterized in that the side legs of the cam frame ( 24 to 29 ) are reinforced by struts ( 28 , 29 ) which are angled perpendicularly from the plane of the cam frame ( 24 to 29 ) and one of Have outer legs ( 26 ) to the base plate ( 10 ) of the driver ( 1 ) increasing cross section. 6. Driver according to one of the preceding claims, characterized in that between the side legs ( 24 , 25 ) of the cam frame ( 24 to 29 ) and the locking cam ( 23 ) and between the inner leg ( 27 ) of the cam frame ( 24 to 29 ) and the Locking cams ( 23 ) a narrow, U-shaped gap is provided, the width of which is small compared to the width of the locking cam ( 23 ) and the side legs ( 24 , 25 ). 7. Driver according to claim 1, characterized in that a securing element ( 43 , 45 ) is arranged directly at the insertion opening ( 75 ) of the nipple chamber ( 7 ), which prevents the nipple (s) ( 90 ) from sliding out of the nipple chamber ( 7 ) prevented. 8. Driver according to claim 7, characterized in that the securing element ( 43 , 45 ) is connected to a wall ( 41 ) of the nipple chamber ( 7 ) and protrudes into the insertion opening ( 75 ) of the nipple chamber ( 7 ). 9. Driver according to claim 7 or 8, characterized in that the securing element ( 43 , 45 ) is designed and arranged such that it allows a lead a nipple ( 90 ) into the nipple chamber ( 7 ) and with an opposite movement of the nipple ( 90 ) blocks the insertion opening ( 75 ). 10. Driver according to one of the preceding claims 7 to 9, characterized in that the securing element ( 43 ) from a wall ( 41 ) of the nipple chamber ( 7 ) bent out safety tongue ( 43 ) be, the end of which is directed towards the nipple chamber ( 7 ) and that an opening ( 44 ) provided in the wall ( 41 ) serves to receive the securing tongue ( 43 ) when a nipple ( 90 ) is inserted. 11. Carrier according to one of the preceding claims 7 to 9, characterized in that the securing element (45) consists of a protruding from the wall (41) into the fitting chamber (7), securing wedge (45) directed to the insertion bevel (46 ) and that an opening ( 44 ) provided in the wall ( 41 ) serves to receive the safety wedge ( 45 ) when inserting a nipple ( 90 ).