Driver for a movable window pane, window pane arrangement

Abstract

A driver for a movable window pane, in particular of a motor vehicle, having a receptacle recess, a receptacle of an edge section of the window pane, and having an elastically displaceable detent lug which is designed to engage in a latching cutout of the window pane in order to arrest the window pane on the driver, wherein the detent lug, in the reset position thereof, obstructs the receptacle recess and has an insertion taper assigned to the receptacle recess such that the detent lug is displaced into a position releasing the receptacle recess by insertion of the window pane into the receptacle recess. The detent lug has a catch groove on the insertion taper which extends parallel to the receptacle recess over the detent lug.

Claims

1. A driver for a movable window pane of a motor vehicle, comprising: a receptacle recess for receiving an edge section of the window pane; an elastically displaceable detent lug adapted to engage with a latching cutout of the window pane for locking the window pane on the driver, the detent lug obstructing the receptacle recess in an initial position; and wherein the detent lug has an insertion taper so that the detent lug is displaced out of the receptacle recess by an insertion of the window pane into the receptacle recess, wherein the detent lug has a catch groove in the insertion taper that extends substantially parallel to the receptacle recess over the entire width of the detent lug, wherein the catch groove is arranged in the latching cutout of the window pane when the window pane is inserted into the receptacle recess, and wherein the insertion taper has an upper first guiding section and a lower second guiding section that have an inclined orientation to each other, wherein the catch groove is situated between the upper first guiding section and the lower second guiding section and wherein an upper edge of the latching cutout of the window pane directly contacts the upper first guiding section of the insertion taper when the window pane is inserted into the receptacle recess and the detent lug is in the initial position.

2. The driver according to claim 1, wherein the catch groove is narrower than the receptacle recess or narrower than the window pane.

3. The driver according to claim 1, wherein the catch groove is situated between the upper first guiding section and the lower second guiding section.

4. The driver according to claim 1, wherein at least one side wall of the catch groove is oriented at least essentially perpendicularly to a base of the catch groove.

5. A window pane arrangement for a motor vehicle, comprising the movable window pane and the driver according to claim 1.

6. The window pane arrangement according to claim 5, wherein the window pane has at least one insertion chamfer on its edge facing the driver.

7. The window pane arrangement according to claim 6, wherein the insertion chamfer bridges the catch groove of the detent lug when the window pane is inserted into the receptacle recess.

8. The driver according to claim 1, wherein the catch groove has a base, a first side wall that extends from and is directly connected to a first edge of the base and a second side wall that extends from and is directly connected to a second edge of the base, wherein the second side wall and the first side wall oppose one another and are each oriented perpendicular to the base.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

(2) FIG. 1 shows a top view of a driver, including a window pane arrangement;

(3) FIGS. 2A and 2B show a side view of the driver in different situations;

(4) FIG. 3 shows a detailed view of the driver; and

(5) FIG. 4 shows a detailed view in a position of use.

DETAILED DESCRIPTION

(6) FIG. 1 shows a simplified top view of a window pane arrangement 1, which comprises a window pane 2 and a driver 3. Driver 3 is used to move window pane 2 up and down in a frame, which is not illustrated here, as indicated by a double arrow 4. For this purpose, driver 3 is driven, for example, by an electrical actuator device. To transport the window pane by driver 3 in both desired directions, the driver is connected to window pane 2 in a form-fitting manner.

(7) To this end, FIGS. 2A and 2B show window pane arrangement 1 in a sectional representation in each case, along line A-A from FIG. 1.

(8) Driver 3 has a receptacle recess 5, in which an edge section 6 of window pane 2 is accommodated. Receptacle recess 5 is designed in such a way that window pane 2 is held in receptacle recess 5 in an essentially form-fitting manner and preferably essentially without clearance. In particular, the width of receptacle recess 5 illustrated in the side view corresponds to the width of window pane 2 in its edge area 6. On its outer edge 7, window pane 2 bumps against driver 3 so that driver 3 is able to move upward, due to an upward movement of window pane 2. A latching device 8 is provided to be also able to move window pane 2 in the opposite direction.

(9) Latching device 8 has an elastically displaceable detent lug 9. In the initial state illustrated in FIG. 2A, the detent lug extends through receptacle recess 5 and obstructs it thereby. Detent lug 9 has an insertion taper 10 on its upper side, which faces receptacle recess 5 or window pane 2. Insertion chamfer 10 has a first guiding section 11 as well as a second guiding section 12, which are oriented to be inclined toward each other, so that first guiding section 11 encloses a smaller angle with window pane 2 than second guiding section 12, which essentially extends in the area of receptacle recess 5 or therethrough. First guiding section 11 is essentially assigned to outside 13 of window pane 2. Window pane 2 furthermore has a latching cutout 14, through which detent lug 9 extends in areas. The underside of detent lug 9 has a planar design, so that it extends essentially horizontally through receptacle recess 5. The underside of detent lug 9 is assigned to the lower edge of latching cutout 14, so that detent lug 9 rests on the lower edge of latching cutout 14. If driver 3 is now pulled downward, the tensile force is transferred by detent lug 9 to window pane 2.

(10) Window pane arrangement 1 is very easily mounted, as illustrated in FIG. 2B. For mounting, window pane 2 is easily pushed from above into receptacle recess 5 with its edge 7 first, as indicated by an arrow 15. Edge 7 strikes insertion taper 10 of detent lug 9. Insertion taper 10 then causes detent lug 9 to be displaced outwardly from the area of receptacle recess 5, as indicated by an arrow 16. In the present case, detent lug 9 is fixedly formed with a side wall 17 of driver 3 delimiting receptacle recess 5 toward the front. Side wall 17 is either itself designed to be elastic or it is held elastically on driver 3, so that it is elastically displaceable according to arrow 16 to ensure the displacement of detent lug 9 out of the area of receptacle recess 5 by the insertion of window pane 2. Once detent lug 9 has been displaced out of its initial position into the position releasing receptacle recess 5, as illustrated in FIG. 2B, window pane 2 may be completely inserted all the way into receptacle recess 5 so that latching cutout 14 is then situated in the area of detent lug 9. Due to the intrinsic elasticity of the bearing of detent lug 9, the latter springs back independently into its initial position according to arrow 18, in which it is situated in latching cutout 14, as shown in FIG. 2A, to lock driver 3 on window pane 2.

(11) This very easy mounting capability has the disadvantage that, unless further precautions are taken, detent lug 9 may be displaced outwardly according to arrow 16 in FIG. 2B by inserting a manipulation tool 19, which is designed, for example, as a thin sheet-metal element, through an opening gape between a door frame 20, which is only indicated here, and window pane 2 up to detent lug 9, thereby enabling driver 3 to be detached from window pane 2.

(12) To avoid this disadvantage, detent lug 9 is provided with a catch groove 21 in the present case.

(13) To this end, FIG. 3 shows an enlarged detailed view of detent lug 9, including catch groove 21. Catch groove 21 is situated between first guiding section 11 and second guiding section 12 of insertion taper 10. Catch groove 21 extends parallel or substantially parallel to receptacle recess 5 over the entire width of detent lug 9, as shown, in particular, in FIG. 1. Catch groove 21 has a base 22 as well as two diametrically opposed side walls 23 and 24, which are oriented perpendicularly to base 22. Catch groove 21 is formed in detent lug 9 in such a way that, in the initial position of detent lug 9, it is situated within latching cutout 14 of window pane 2. Width B of catch groove 21 is selected to be at least as wide as the maximum gap opening between window 2 and door frame 20 but narrower than the width of window pane 2.

(14) Catch groove 21 easily prevents driver 3 from being detached from window pane 2, as described above. A manipulation tool 19, which fits through the opening gap between door frame 20 and window 2 and is pushed along window pane 2, as described above, all the way to detent lug 9, initially forces the latter a short distance out of latching cutout 14 until tip 25 of the manipulation tool enters catch groove 21, which was moved out of latching recess 14. Once manipulation tool 19 has been caught thereby in catch groove 21, it is unable to be pushed father downward or move the detent lug farther out of latching cutout 14 by the manipulation tool. The security of window pane arrangement 1 is particularly easily protected hereby against a manipulation attempt. The fact that catch groove 21 extends over the entire width of detent lug 9 ensures that a manipulation tool 19, which is pushed up to detent lug 9, also always enters catch groove 21.

(15) Window pane 2 is advantageously provided with an insertion chamfer 26 on its edge 7, as is illustrated, in particular, in FIGS. 2A and 2B. Insertion chamfer 26 is designed to be so wide that insertion chamfer 26 bridges catch groove 21 when window pane 2 is inserted into receptacle recess 5 in such a way that edge 7 always strikes second section 12 of insertion taper 10 of detent 9 upon insertion, so that detent lug 9 is always able to be placed in the position releasing receptacle recess 5 by the insertion of window pane 2.

(16) The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.