DE4423440A1 - Device for attaching a window pane of a motor vehicle to the guide device of a window lifter - Google Patents

Abstract

The invention relates to a device for attaching a window pane of a motor vehicle to the guide device of a window lifter, the device comprising retaining limbs which are arranged on both sides of the lower region of the window pane and of which at least one retaining limb has a recess in which a connecting element can engage for the purpose of latching the window pane, at least an upper part of at least one retaining limb being of resilient design and bearing an insertion bevel which is oriented in the direction of the lower edge of the pane and extends essentially parallel thereto, characterised in that, for the purpose of latching the window pane (1), the connecting element is connected to the window pane (1) prior to being inserted into the gap between the retaining limbs (4) and, in the attached state, engages in the recess(es) (40) of the retaining limb(s) (4). Suitable connecting elements are pins mounted in through-holes in the pane, elements bonded onto the pane or elements shaped out of the pane itself. <IMAGE>

Description

The invention relates to a device for fastening a Window pane of a motor vehicle according to the preamble of Claim 1.

From EP 0 208 237 B1 a generic device is known, which according to Kind of a clip can be connected to the window pane. Outgoing of a base body, which with a guide device Window lifter communicates, extend to both sides of the So-called wings, one of which (the supporting wing) carries an inward-pointing pen. At least the support wing or the wings opposite the supporting wing are resilient,  so that the window pane can be inserted between the wings. To the To facilitate the assembly process, the pin has a bevel. At Reach the through hole in the window pane that the pin is assigned, the spring-loaded pin snaps into the Through hole and thus connects the guide device of the window regulator with the window pane.

The disadvantage is that the solution described is only relatively minor Withdrawal forces allowed because the pin is due to its storage on a resilient support wing or between resilient auxiliary wings tends to the through hole of the window pane at higher loads again slide out. Another disadvantage is that it is from the Skill of the fitter depends on how quickly the necessary Match between through hole and pin is achieved. In the Mass assembly of motor vehicles can cause disruptions in the Lead production flow.

Furthermore, it is necessary to determine the position of the pin on the support wing very carefully on the distance of the disc hole from the Adjust the lower edge of the pane.

The invention is therefore based on the object of a device for Attaching a window of a motor vehicle to the Develop a window lifter guide device that is simple and safe pane assembly guaranteed as well as high pull-off forces withstands. In addition, the fastening device should enable service-friendly disassembly of the window pane.  

According to the invention the task is characterized by the characteristic features of Claim 1 solved. Then the window pane shows Lanyard for locking them in the recesses of engages holding legs arranged on both sides of the window pane, after the window pane is fully seated in the gap between the Holding legs was introduced.

Two basic variants of the invention can be carried out: Firstly, can the connecting element is firmly (non-detachably) connected to the window pane be, e.g. B. by sticking a suitable part on the Disc surface or by molding the connecting element from the Disc material itself. On the other hand, there is the possibility of using it of a bolt as a connecting element, which in a through hole Window pane is inserted. For safe storage in the disc hole To ensure, the bolt has captive locks or will otherwise attached to the disc.

According to a preferred variant of the invention, this snaps Connecting element, e.g. B. the bolt into the recess Holding leg or a pair of holding legs, the Then connecting element of a resilient perpendicular to the plane of the disc Clip or clip pair is overlapped.

The holding legs of the preferably made of plastic Fastening device have said clip as an integral Part in its upper area (above the recess for the Connecting element). When inserting the disc, it can move around an axis spring-pivoting clip the sliding connecting element  dodge. The clip and its area spanning the connecting element are designed so that when a pull-off force occurs, none to the outside directional pivoting movement of the clip can occur. With that they are maximum pull-off forces exclusively from the mechanical resilience the fastening device determines.

The lower region of the holding leg is essentially rigid and, if necessary, provided with support ribs to avoid unwanted bends.

Further advantageous configurations of the holding legs can be seen at their ends not only chamfers for the window pane, but also conical ones Guide surfaces for horizontal guidance of the connecting element, wherein the cone on the side of the holding leg facing the window pane is attached and tapered towards the recess to eventually to go into the recess itself.

For reasons of strength, the use of both sides is Disk surface arranged fasteners advantageous, for. B. by means of the through hole of a window pane on both sides outstanding bolt, but there is also the possibility of one-sided Attachment.

Provided that tolerances are evened out or adjustments can be made, the recesses in the holding legs be designed as horizontally or vertically oriented elongated hole guides, which is completed with locking devices in the event of adjustment will.  

Another preferred variant of the invention uses holding legs with two side by side recesses, one of which is a recess is usually designed as a circular hole and the other as an elongated hole. The elongated hole extends essentially transversely to the withdrawal path Window pane. Both recesses are of a common resilient Overlapped clip and are therefore in a gap with each other Connection. This embodiment enables the halving of the otherwise necessary number of variants for drivers for use in window regulators the right or left door.

While for a double-strand cable window lifter or one Cross arm window lifters so far four different driver variants (for Driver and front passenger doors each have an A and B pillar side Carrier), the invention manages with only two carrier variants.

Only right and left embodiments will be available provided, the mirror-image arrangement of circular hole and slot the Use of the driver in two places (in the right and left door) enables.

The execution of the invention advantageously takes place Fastening device and the guide device of the window regulator (e.g. Driver) in one piece.

The invention is described below with the aid of exemplary embodiments and illustrated figures explained in more detail. Show it:  

Fig. 1 is a perspective view of the fastening device with integrated driver and an overlying window panel with a bolt-like connecting element,

Fig. 2 is a perspective view of a retaining arm of the fastening device - view of the inner surfaces of the holding limb,

Fig. 3 is a perspective view of a clipbaren in a through hole of a window connecting element,

Fig. 4 is a perspective view of a connecting element of a dowel in the through hole of the window pane can be locked on the type,

Fig. 5 is a perspective view of a retaining arm of the fastening device with a circle hole and an elongated hole,

FIG. 6a schematic representation of a driver with support legs according to Fig. 5 in connection with a double-strand cable window lifter
- Driver's door, circular holes point outwards,

Fig. 6b schematic representation of a driver with support legs according to Fig. 5 in connection with a double-strand cable window lifter
- Driver's door, circular holes point inwards,

Fig. 6c schematic representation of a driver with support legs according to Fig. 5 in connection with a double-strand cable window lifter
- Passenger door, circular holes point inwards.

The device according to the invention for fastening a window pane to the guide device of a window lifter is characterized by a simple and at the same time safe mountability, because special guide surfaces 43 , 44 compensate for inaccuracies in the approximation of the window pane and fastening device. In addition, the design of the holding legs 4 , in particular the design of the upper clip region 41 and its support surface 402 , ensures the transmission of high pull-off forces. The device has no tendency for the connecting element 2 , 3 to slide out of the recess 40 , since the pulling forces which occur neither cause the opposite holding limbs 4 to bend open, nor do the clips 41 pivot away.

The embodiment according to FIG. 1 shows a one-piece fastening device which is preferably formed from plastic with a driver 7 and to which a connecting element 2 in the through hole 10 of the window pane 1 is assigned. Holding legs 4 , which are aligned in parallel, rise above the driver 7 , which is shown only schematically and without details. Their distance corresponds approximately to the thickness of the window pane 1 . In the upper area they have insertion chamfers 43 to facilitate the insertion of the window pane 1 . By forming support ribs 46 , the holding legs 4 were given a relatively high degree of rigidity. Excepted from this, however, is a clip 41 provided in the upper region, which is designed to be pivotable and resilient about an axis 45 , which is illustrated in FIG. 2 in the form of an enlarged upper section of the holding leg 4 .

Thereafter, slots 42 adjoin the recess 40 in a beam-like manner, which extend in the direction of the upper corners of the holding leg 4 , the surfaces of the slots 42 merging directly into the upper and lower support surfaces 401, 402 of the recess 40 . The end regions of the slots 42 bend in the direction of the lateral edges of the holding leg 4 and thereby cause a weakening of the material in such a way that when the clip 41 is loaded perpendicularly to the plane of the pane, it deviates in one or the other pivoting direction 450 about the pivot axis 45 .

In addition to the insertion chamfer 43 , which also extends to the clip 43 , the clip 43 also has a few conical surfaces 44 which run towards one another in the direction of the recess 40 and ultimately end at a distance which is approximately the diameter (or in the case of elongated holes approximately their width) corresponds to the recess 40 .

Fig. 3 shows the bolt-like connecting element 2 with mutually arranged resilient captive retainers 21 , which rise above the general circumference of the bolt at the end of the grooves 22 . The grooves 22 only serve to demold the injection mold. Axially aligned ribs 23 are arranged between the captive retainers 21 , which serve to compensate for the tolerance to the disk hole 10 and are relatively easily deformable. The top surfaces of the bolt are provided with an insertion chamfer 20 . After the bolt has been pressed in, the window pane 1 is stored between the captive devices 21 . The bolt can be removed for the purpose of dismantling the window pane 1 by overpressing the captive locks using a suitable tool.

A further variant for a connecting member 3 shown in FIG. 4. The connecting member 3 consists of a slotted outer pin 30 and an insertable in these dowels 31st Bolt 30 and dowel 31 are manufactured as a one-piece plastic injection-molded part and are connected to one another via a predetermined breaking point, not shown.

After the bolt 30 is positioned in the disk hole 10 , the dowel 31 provided with an insertion chamfer 312 is pressed into the axial opening of the bolt 30 and widens the slot 301 . The slot 311 in the dowel 31 is intended to ensure a limited elasticity of the dowel 31 , so that in particular excess tensioning forces do not have to be absorbed only by the bolt 30 . This variant of a connecting element 3 is particularly suitable for compensating for particularly large tolerances between the disk hole 10 and the bolt 30 .

The embodiment of the invention shown in FIG. 5 is aimed at reducing the number of parts and thus reducing the logistics costs. It allows the use of one and the same driver in the right and left door. Whose holding leg 4 'have two juxtaposed recesses 40 a, 40 b, of which one recess 40 b is formed as an elongated hole for the purpose of tolerance compensation and the other recess has a conventional, substantially circular contour. A common resilient clip 41 'delimits the recesses 40 a, 40 b upwards and forms with its upper support surfaces 402 a, 402 b together with the support surfaces 401 a, 401 b of the base body of the holding leg 4 ', the contour of the recesses 40 a, 40 b. In the transition area from one recess 40 a to the other recess 40 b, the upper and lower support surfaces form a gap, so that the use of a common resilient clip is possible.

Depending on whether the driver in question in the direction of travel (so-called X direction) should take over or not, the associated connecting element, for. B. in the disk hole 10 bolt 2 , clipped into the circular hole 40 a or in the slot 40 b. For the bolt 2 , the elongated hole 40 b forms a sliding guide that reliably compensates for manufacturing and assembly tolerances when the window lifter is actuated.

FIGS. 6a to 6c show a schematic representation of different variants of the combination of so-called right-hand carriers (r.) And left pushers (l.) In right and left doors. Since the guide length on the side of the mirror triangle (A-pillar side) is often only very short, it is advisable to implement the disk guidance on this side via the circular hole 40 a of the driver and the tolerance compensation by means of the elongated hole 40 b on the other side ( B-pillar side).

Referring to FIG. 6a, which schematically illustrates the assignment of retaining arms 4 'which points to guide rails 8 of a double-strand cable window lifter guided carrier to be stored in through holes 10 of a window pane 1 pin 2, 40 have the circular holes A, the holding legs 4' according to the outside. The bolt 2 on the side of the mirror triangle, the circular hole 40 a of the holding leg 4 'is assigned. On the other hand, the holding leg 4 'on the other side (B-pillar side) is positioned so that the associated bolt 2 snaps into the slot 40 b and clipped there for the purpose of tolerance compensation across the deduction direction of the window 1 .

Fig. 6b differs from the illustration of FIG. 6a only in that the holding legs 4 'used with their circular holes 40 a point inwards.

Assuming that the schematic representations of FIGS. 6a to 6c are so-called internal window regulators, that is to say arranged between the window pane 1 and the door interior trim, the window panes according to FIGS . 6a and 6b would be a driver-side door and the window pane according to FIG . 6c assigned to a passenger-side door.

Have compared the Fig. 6b and 6c, both holding legs 4 'with inwardly directed circular holes 40 a, and so-called left-hand carriers (is readily apparent that (marked with "r.") By the exchange of so-called right-hand carriers labeled with "l."), ie the variety of variants can be reduced due to their multiple usability on different guide rails 8 of the driver-side or passenger-side door.

In Fig. 6c ropes 9 are also indicated, the force application points on the drivers (z. B. via nipple chambers 90 ) preferably in the middle between the centers 40 a ', 40 b' of the recesses 40 a, 40 b. This avoids unnecessarily large tipping moments on the drivers caused by the disc load.

Reference list

1 - window pane
10 holes
2 - connecting element (e.g. bolt)
20 - introductory phase
21 - Loss prevention
22 - groove
23 - rib
3 - connecting element
30 - bolt (slotted)
301 - slot
302 - introductory phase
31 - dowel (springy)
311 - slot
312 - Introductory bevel
4 - holding legs
4 ′ - holding leg
40 - recess
40 a - circular recess, circular hole
40 a '- center of the circular recess
40 b - oblong hole
40 b ′ - center of the elongated hole
400 - gap
401 - lower support surface
401 a - lower support surface (of the circular hole)
401 b - lower support surface (of the elongated hole)
402 - upper support surface
402 a - upper support surface (of the circular hole)
402 b - upper support surface (of the elongated hole)
41 - spring clip
41 ′ - spring clip
42 - slot
43 - Entry chamfer for window pane
44 - conical surface for guiding the connecting element
45 - Swivel axis of the clip
450 - swivel directions
46 - support ribs
5 - spring element
6 - Stop for the window pane
7 - driver (schematic, without details)
8 - guide rail
9 - rope
90 - nipple chamber.

Claims (13)

1. Device for fastening a window pane of a motor vehicle to the guide device of a window lifter, consisting of holding legs which are arranged on both sides of the lower region of the window pane and of which at least one holding leg has a recess into which a connecting element for locking the window pane can engage , wherein at least an upper part of at least one holding leg is resilient and bears an insertion chamfer directed in the direction of the lower edge of the pane and extending essentially parallel thereto, characterized in that the connecting element for locking the window pane ( 1 ) before it is inserted into the gap between the holding legs ( 4 ) is connected to the window pane ( 1 ) and engages in the recess (s) ( 40 ) of the holding leg (s) ( 4 ) in the fastening state. 2. Device according to claim 1, characterized in that the connecting element is a bolt ( 2 , 3 ), preferably a plastic bolt, which is equipped with anti-loss devices ( 21 , 31 ) in a disc hole ( 10 ). 3. Device according to claim 1, characterized in that the Connection element is glued to the surface of the pane. 4. The device according to claim 1, characterized in that the Connection element is molded out of the disc material itself. 5. Apparatus according to claim 1, characterized in that in the upper region of the holding leg ( 4 ) a spring clip ( 41 ) is formed perpendicular to the plane of the window, which evades the (vertical) introduction of the connecting element connected to the window ( 1 ) and this in overlaps its end position. 6. The device according to claim 1, characterized in that the holding leg ( 4 ) on its side facing the window pane ( 1 ) has conically arranged guide surfaces ( 44 ), the cone tapering in the direction of the recess ( 40 ) and the horizontal guidance of the Connection element is used. 7. The device according to at least one of the preceding claims, characterized in that connecting elements arranged on both sides of the window pane ( 1 ), guided by associated conical guide surfaces ( 44 ) and overlapped by associated clips ( 41 ) and stored in associated recesses ( 40 ). 8. The device according to claim 1, characterized in that the recesses ( 40 ) are designed as elongated hole guides and serve the tolerance compensation in the case of horizontal extension or the adjustment of the window pane in the case of vertical extension. 9. The device according to claim 1, characterized by its one-piece connection with a driver ( 7 ) for a cable window lifter. 10. The device according to at least one of the preceding claims, characterized in that the holding leg ( 4 ') has two recesses ( 40 a, 40 b) arranged side by side, one of which ( 40 a) substantially circular and the other ( 40 b) is essentially designed as a horizontally oriented elongated hole, the recesses being connected to one another by a gap ( 400 ). 11. The device according to claim 10, characterized in that the recesses ( 40 a, 40 b) upwards by a with the holding leg ( 4 ') connected and perpendicular to the disc plane resilient clip ( 41 ') are limited. 12. The apparatus according to claim 10, characterized in that the force application point to the device, for. B. over the nipple chamber ( 90 ) of a rope ( 9 ), approximately in the middle between the two centers ( 40 a ', 40 b') of the two recesses ( 40 a, 40 b) is arranged. 13. The apparatus of claim 10, characterized by a left and a right embodiment, the arrangement of circular hole ( 40 a) and elongated hole ( 40 b) is provided in mirror image.