EP0872617A2 - Device for connecting a sliding window glass with a window regulator of a motor vehicle - Google Patents

Abstract

The device has a preferably U-shaped basic body (1) for inserting the edge of the window pane (3). The side arms (11,12) of the basic body are joined by a base (10). At least one movably and/or swivel mounted locking element (2) is supported on one side on one of the side arms, and on the other side on the window pane's side surface, when the window pane is inserted into the gap in the basic body. The locking element is spring mounted towards the direction in which the window pane is inserted and or across the window pane's plane. The gap between the window pane and the locking element's support surface narrows towards the direction of the window pane's insertion and in the removal direction (300) of the pane.

Description

The invention relates to a device for fastening a sliding window pane on a window regulator of a motor vehicle according to the preamble of the claim 1 and is suitable for so-called blind assembly.

From DE 31 08 244 A1 a coupling device between a window lifter and a window of a motor vehicle known, which consists essentially of an am lower edge of the window pane fastened holding element and at least one Coupling shoe exists, which is equipped with locking means and towards one with fit locking elements, with the window lift mechanism connected coupling element protrudes. When merging the parts to be connected there is an elastic deformation of at least one of the coupling elements the clipable connection by positive interlocking of the locking means is made.

The disadvantage, however, is that the connection between the window pane and Window lifters the spreadable area must have a minimum elasticity so that the Locking elements can engage in a positive engagement. This elasticity holds but there is also the danger that with large tensile loads, such as in a frozen window pane on the frame can occur Disengage the locking elements. The window regulator device could then no longer perform their task. In addition, it is difficult to Bring the locking elements into position so precisely that they can be locked face each other. It is therefore necessary to slide the window pane back and forth in the X direction often necessary to achieve positive locking.

From JP 6-135228 A is a device for connecting a window pane with a Known windows, the U-shaped on the window parallel to the lower edge of the window extending profile pieces used, with the free legs of the U-profile inwards have directed hook-shaped extensions. These profile pieces are assigned fit, in the U-shaped cavity lockable coupling pieces that on the Lower edge of the window pane are attached. To make it easier to snap into place, they are Free ends of the coupling pieces are wedge-shaped, the barb-like Extensions can reach behind the extensions of the U-profile. Still, it is usually necessary that the worker exerts pressure on the window pane in the assembly direction in order to to produce the necessary positive connection. Using screws, the position between Window lifter and window pane fixed in accordance with the holes and grooves provided. An adjustment of the window in the X direction (vehicle longitudinal axis) for the purpose of Setting an ideal position is just as impossible as with the first one described execution.

A fastening device with an essentially U-shaped base body is made of DE 44 26 670 A1 known. A variant for blind assembly uses one Spring body encompassing the basic body with a toggle lever mounted thereon as an Clamping element. The free end of the toggle lever reaches through when not under tension a recess of one of the legs in the gap of the U-shaped base body. At the Inserting the window pane into the gap between the jaws (legs) occurs Lower pane edge engages with the free end of the toggle lever and is at progressive introduction of the window pane over the dead center of the clamping system pivoted in order to then snap automatically into the stable clamping state. The now tensioned spring clip presses the legs of the U-shaped base body against the Surface of the window pane in order to fix it by clamping (i.e. friction locking).

The disadvantage, however, is that the clamping forces that can be generated with the described solution will not always be sufficient to cover the actually occurring Withstand pulling forces. On the other hand, the maximum clamping forces are permanent what a high durability of all parts in the power flow requires. In addition, the generation of the required clamping force is via the The lower edge of the pane is not unproblematic because of high mechanical loads to break of the pre-stressed vehicle windows.

The invention has for its object a simple and reliable Device for blind assembly of a sliding window on a window regulator to develop a motor vehicle that also for fastening laminated glass panes and is suitable for plastic discs.

According to the invention the task is characterized by the characteristic features of Claim 1 solved. The subclaims indicate preferred variants of the invention.

Starting from an open, preferably essentially U-shaped base body, between its side legs, which are connected to each other via a base, the edge of the window pane to be fastened is inserted, and starting from at least one displaceable and / or pivotally mounted locking element, this occurs on the one hand when the window pane is inserted into the gap of the base body one of the side legs and on the other hand on the side surface of the window pane supports, it is provided according to the invention that the locking element against the Direction of insertion of the window pane, i.e. in the direction of withdrawal of the window pane, and / or is mounted resiliently transversely to the plane of the window pane, one in the direction the spring force executed displacement and / or pivoting movement of the Locking element reduces the gap between the legs of the base body or - with the window pane inserted - the pressure of the locking element on the Window pane raised. The invention can be either as a frictional or Execute positive fastening device. When using Micro-gear elements, the fastening device can have both features of the Have frictional engagement as well as the positive connection.

According to a preferred variant of the invention, the gap of the base body, the between the window pane and the support surface of the locking element on the leg of the base body is formed, conical in the withdrawal direction of the window pane. in the conical gap supports a wedge-shaped or roller-like, e.g. cylindrical Locking element in the direction of the narrowing gap, ie in Pull-off direction of the window pane is spring-loaded. When the Edge of the window pane in the gap between the legs of the base body is from the locking edge against the spring tension pushed away until the gap in the area of the locking element the pane thickness has exceeded and is therefore suitable for receiving the edge of the pane.

If the angle α of the conical gap in which the locking element spring-loaded preloaded, well matched to the coefficient of friction, then it only needs still a comparatively small spring force to hold the window pane securely to ensure in the fastening device even if exclusively frictional means for connecting the window pane and window regulator are provided. If the designated angle a is at most twice as large as that Friction angle ζ = arc tan µ (with µ = coefficient of friction), then a self-reinforcing effect occurs with increasing pulling force of the window pane leads to an increasing clamping force.

The application of this self-reinforcing effect allows the use of a very low one Preload force of the spring that the locking element towards the window pane charged. Since the window pane is predominantly in the lowest, i.e. in the furthest is inserted in the base body of the fastening device, that exercises Locking element from a correspondingly low pressure on the window pane; it is only so large that the functional interaction between the locking element and window pane is always guaranteed. The preload is therefore far below that Force that would be necessary to increase the maximum pull-off force of the window pane compensate. Thus, the application of this is based on the clamping principle Device for comparatively sensitive plastic panes or laminated glass panes nothing in the way. A flow away of the pressure sensitive materials Overuse is not to be feared.

In addition to the friction locking elements, positive locking can also be used Fastening variants are used if suitable positive locking elements on Fastening area of the window pane can be arranged. For example happen that a separate, the form-locking elements carrying part with the Window pane is firmly connected, e.g. by sticking or by plugging in Disc hole. However, good liability is also limited to the Part placed on the pane surface is possible, if its material with the pane surface forms a favorable friction pairing or form a corresponding adhesive bond can. In addition, the molding of such positive locking elements in the glass body yourself conceivable. Form-fit elements of shallow depth - in the sense of mini-toothing can also be produced by screen printing. After baking the printed one Material has sufficient mechanical strength.

The disc-side form-locking elements are fit-fit elements of the Locking element assigned. The locking element can be used as a slider or pivotable element mounted on one leg of the base body. A separate spring or one piece connected to the locking element ensures for the fact that the positive locking elements are pressed into each other in a spring-elastic manner. The contour the form-locking elements are preferably sawtooth-shaped, the steep tooth flanks of the form-locking elements on the pane side point in the pull-off direction of the window pane. This ensures that on the one hand a high holding force is achieved, on the other hand but a problem-free insertion of the window pane into the gap in the base body can guarantee.

Figur 1

schematische, perspektivische Darstellung einer Befestigungsvorrichtung mit einem Verriegelungselement in Form eines verschiebbaren Rollkörpers;

Figur 2

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit einem im Schenkel des Grundkörpers schwenkbar gelagerten Klemmkörper mit elastisch ausgebildeter Klemmfläche;

Figur 3

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit einem keilförmig ausgebildeten Schieber und einem daran schwenkbar gelagerten Klemmkörper;

Figur 4

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit einem Verriegelungselement in Form eines Klemmkeils und mit einem Zwischenelement;

Figur 5

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit zwei konisch verlaufenden Klemmflächen und zwei zugeordneten zylinderförmigen Klemmkörpern;

Figur 6

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit Formschlußelementen am Zwischenelement und am Verriegelungselement, wobei das Verriegelungselement keilförmig ausgebildet und in Abzugsrichtung der Fensterscheibe angefedert ist;

Figur 7

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit Formschlußelementen am Zwischenelement und am Verriegelungselement, wobei das Verriegelungselement quer zur Scheibenebene angefedert ist;

Figur 8

schematische Darstellung des Querschnitts durch eine Befestigungsvorrichtung mit Formschlußelementen am Zwischenelement und am Verriegelungselement, wobei das Verriegelungselement schwenkbar am Schenkel des Grundkörpers lagert und ein einstückig angeformtes Federelement trägt;

Figur 9

schematische, perspektivische Explosionsdarstellung einer Befestigungsvorrichtung mit schwenkbarem Klemmkörper und eingelegtem Zwischenelement;

Figur 10

schematische Darstellung eines doppelsträngigen Seilfensterhebers mit einer erfindungsgemäßen Befestigungsvorrichtung.

The invention is explained in more detail below on the basis of exemplary embodiments and the figures shown. Show it:

Figure 1

schematic, perspective view of a fastening device with a locking element in the form of a displaceable rolling body;

Figure 2

schematic representation of the cross section through a fastening device with a pivotally mounted in the leg of the base body with an elastic clamping surface;

Figure 3

schematic representation of the cross section through a fastening device with a wedge-shaped slide and a pivotally mounted clamping body;

Figure 4

schematic representation of the cross section through a fastening device with a locking element in the form of a clamping wedge and with an intermediate element;

Figure 5

schematic representation of the cross section through a fastening device with two conical clamping surfaces and two associated cylindrical clamping bodies;

Figure 6

schematic representation of the cross section through a fastening device with interlocking elements on the intermediate element and on the locking element, wherein the locking element is wedge-shaped and spring-loaded in the withdrawal direction of the window pane;

Figure 7

schematic representation of the cross section through a fastening device with interlocking elements on the intermediate element and on the locking element, the locking element being spring-loaded transversely to the plane of the pane;

Figure 8

schematic representation of the cross section through a fastening device with interlocking elements on the intermediate element and on the locking element, the locking element being pivotally mounted on the leg of the base body and carrying an integrally formed spring element;

Figure 9

schematic, perspective exploded view of a fastening device with pivotable clamping body and inserted intermediate element;

Figure 10

schematic representation of a double-strand cable window lifter with a fastening device according to the invention.

The embodiment shown in Figure 1 is an exclusively frictional working clamp attachment. Your base body 1 is preferably one Metal profile formed, the base 10 laterally carries two legs 11 and 12. During the a leg 12, parallel to the window pane 3 and in direct contact with it, the other leg 11 is inclined by an angle α, so that a conical narrowing gap occurs. An angled free end 110 further narrows the gap to to a little more than the thickness of the window pane 3 and at the same time forms the upper one Stop for the locking element 2.

At this point it should be noted that the figures 1 to 10 shown none Show means that facilitate the introduction of the window pane 3 into the gap of the main body 1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1j. Suitable for this are e.g. Introductory cone that open upwards and preferably in one piece on Base body 1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1j are integrally formed.

Before inserting the window pane 3 into the base body 1 of the fastening device stands the locking element 2 with the inner surface of the angled free end 110 of the leg 11 in engagement, with the gap to the opposite leg 12 a width is reduced which is smaller than the thickness of the window pane 3. So that hits Lower edge of the window pane 3 first on the upper surface 22 of the Locking element 2 and presses it against the tension force of the spring 4, until the gap for receiving the window pane 3 is sufficiently wide. To unlock the Window pane 3, e.g. for the purpose of their exchange, is used in an analogous manner with a Unlocking tool 7 on surface 22, pressure on locking element 2 exercised, the gap between the locking element 2 and the leg 12 expanded so that a problem-free removal of the window pane 3 is possible.

The locking element 2 is slide and rolling element at the same time. With its levels Contact surfaces 20, 23, the locking element 2 acts as a slide when it comes to it goes, the manufacturing tolerances of the base body 1, the locking element 2 and Window pane 3 by an actuating movement of the spring 4 to be initiated Compensate locking element 2 in the withdrawal direction 300 of the window pane 3. In the release lines 210, 220 lift the flat surfaces 20, 23 from the leg 11 and from the Window pane 3 and go into convexly curved surfaces 21 and 24 respectively. If now Window pane 3 due to a pulling force acting on it in the pull-off direction 300 (at Lowering the base body 1) is slightly pulled out of the base body 1, the locking element 2 acts as a rolling body. Lifting the window pane 3 causes the locking element 2 to rotate counterclockwise. The locking element 2 reaches the narrowing area of the conical gap and accordingly increases the holding forces of the fastening device. The next time the window pane 3 is raised, it comes back in their lowest position, so that no significant clamping forces the fastening device or load the window pane 3 more.

Even during the rolling movement of the locking element 2, the clamping lines 210, 220 which "migrate" on the convex surfaces depending on the rolling angle are always in a constant relative position. That is, due to the conical gap - caused by the inclined leg 11 - the clamping line 210 lies always above the clamping line 220 and the angle of inclination α between the plane E1 receiving the clamping lines 210 and 220 and the plane E2 running orthogonally to the plane of the disc does not change even during a rolling movement of the locking element 2. The angle α necessary for the safe functioning of the fastening device depends on The friction angle of the parts involved can be calculated as follows: α ≤ 2 arc tan µ (µ = coefficient of friction)

The contours of the convex surfaces 21, 24 can be part of a circle; she but can also have a different contour to the clamping forces on a changing geometry within the conical clamping gap (e.g. as a result of the Bending of the leg 11 or due to changing friction conditions modified surface pressure).

On the underside of the locking element 2 is a pin 25 for positioning the Shaped spring 4 molded. Of course you can also choose other types of springs be used. It is only important that a sufficiently large Force component of the spring 4 in the withdrawal direction 300 is available.

The embodiment variant of FIG. 2 is also based on the exclusive use of the Frictional engagement. The locking element 2a is designed as a swivel element and supports at the upper end of the leg 11a of the base body 1a. Its clamping surface 21a is convex and resilient due to an elastic region 22a. The Contour of the clamping surface 21a has - starting from the pivot axis 20a - opposite clockwise an increasing distance to move the clamping surface 21a in the withdrawal direction 300 of the window pane 3 an increasing clamping force guarantee. The necessary contact pressure of the clamping surface 21a against the surface the window pane 3 is generated by a spring element 4a, which is located on the leg 11a supports. If the locking element 2a is a plastic injection molded part, this can Spring element 4a in an advantageous manner using so-called 2-component technology be injected. Another spring element 5a (possibly made of an elastomer) arranged between the base 10a and the lower edge of the window pane 3. It puts sure that a small degree of jamming at which the locking element 2a has been pivoted slightly counterclockwise, always maintained becomes.

With regard to the friction-related boundary conditions necessary for safe functioning the fastening device are required applies to the embodiments according to Figures 2 and 3 that already described for the embodiment of Figure 1. That is, the angle α between the clamping line 210a or 210b and the pivot axis 20a or 20 "b receiving plane E1a or E1b and the orthogonal to the disk plane level E2a or E2b should again have the relationship α ≤ 2 arc tan µ (µ = coefficient of friction).

The exemplary embodiment in FIG. 3 combines the technical features in FIG. 1 and 2, since the locking element 2b consists of a on the inclined leg 11b supported slide 2'b and a pivot element 2 "b mounted thereon. The swivel element 2 "b can be maximal between two stop surfaces 21'b, 22'b be pivoted, with its clamping surface 21 "b on the window pane 3 formed clamping line 210b is always below the pivot axis 20 "b. A leaf spring 4b is over molded locking elements 40b, which are in recesses 23'b, 100b of the slide 2'b and engage base 10b, set and press within the fastener the locking element 2b against the angled free end 110'b as long as the Window 3 is not yet inserted into the gap of the base body 1b. After this Inserting the window pane 3 serves to slide the slide 2'b Compensation for manufacturing tolerances and the swiveling movement of the swivel element 2 "b the generation of the clamping force (holding force for the window pane 3).

Figure 4 shows the cross section through a fastening device with a wedge-shaped Locking element 2c by a spring 4c in the inclined leg 11c and the window pane 3 formed conical gap is pressed. Between the Window pane 3 and the locking element 2c is an intermediate element 6c arranged, which improved with respect to the material of the locking element 2c Creates friction and the surface pressure on the window pane 3 reduced.

Another fastening device based on the frictional clamping principle is shown schematically in FIG. It has a basic body 1d with a flat one Leg 12d for supporting the window pane 3 and with two opposite, Legs 11d, 11dd arranged one above the other, their inner surfaces form a conical gap with the window pane 3. There are cylindrical ones in this gap Locking elements 2d, 2dd and the associated spring elements 4d, 4dd are arranged, which are supported on the base 10d or on the head of the leg 11d.

For the embodiment variant according to FIG. 5, the same applies to the dimensioning of the wedge angle α as described for FIGS. 1 to 3. With regard to the exemplary embodiment in FIG. 4, the coefficient of friction μ ₁ between the locking element 2c and the intermediate element 6c must be greater than the coefficient of friction μ ₂ between the locking element 2c and the leg 11c.

FIG. 6 shows a variant of the invention with a form-locking locking of the window pane 3 using a wedge-shaped locking element 2e, which with its flat side surface on the inclined leg 11e supports and the opposite toothed surface with the positive locking elements 21e in the Positive locking elements 60e of an intermediate element 6e fastened to the window pane 3 intervenes. Between the base 10e of the base body 1e and the locking element 2e a leaf spring 4e is arranged, the biasing force of the locking element 2e in Direction of the narrowing gap, that is to say in the withdrawal direction 300 of the window pane 3, presses. The conical gap prevents the window pane from being loaded on the fume cupboard 3 not only that the toothing elements 21e, 60e disengage, it is created increasing clamping forces between the legs 11e, 12e, which contribute to Make pane attachment.

It is somewhat different with the variant shown in Figure 7, because due to the Shape of the base body 1f no self-reinforcing wedge effects used can be. The legs 110f, 111f angled to the leg 11f guide this Locking element 2f essentially orthogonal to the surface of the window pane 3. A coil spring 4f, on the one hand on the leg 11f and on the other Supporting locking element 2f, presses its teeth 21f in the counter teeth 60f of the intermediate part 6f connected to the window pane 3.

A likewise positive locking of the window pane 3 in the base body 1g Fastening device shows the schematic representation of Figure 8. The im essential U-shaped base body 1g supports the window pane with its leg 12g 3 from. An intermediate element 6g is on the opposite pane surface Form-fit elements 60g arranged. The intermediate element bears 6g on its rear side a pin 61g which is inserted into a disc hole 30. In the angled end 110g the other leg 11g is a hinge area for articulated storage of the Locking element 2g provided. That which is rotatably mounted about the pivot axis 20g Locking element 2g has fit-fit interlocking elements 21g on its inside, the spring 4g integrally formed on the back into the counter-toothing 60g of the intermediate element 6g are pressed. The spring 4g is supported on the 11g from the inside of the leg.

The embodiment according to FIG. 9 is a construction which frictional and the positive locking principle combined. For The essentially U-shaped base body 1h absorbs the clamping forces provided with reinforcing ribs 112. The mounting area of the (not shown) Window pane is bordered by an insert 31 which is made of rubber or not hard elastomer should exist. The insert should have the best possible friction in relation to the leg 12h and the intermediate element 6h. It can too be sprayed directly onto the edge of the pane.

On the side facing away from the window pane, the intermediate element 6h has one undulating structure, the positive locking elements 60h more suitable for engagement Form-locking elements 21h of the locking element 2h are available. At the top A joint region with a pivot axis 20h is arranged at the end of the leg 11h which the locking element 2h rotates to a limited extent. The in the withdrawal direction 300 of Window pane possible pivoting movement of the locking element 2h is by the angled leg 110h, which acts as a stop, limited. By one at the base 10h or spring 4h supported on the leg 11h, the locking element 2h in Biased towards the window pane or the intermediate element 6h.

The (average) contour of the clamping surface 21h points counter to the withdrawal direction 300 the window pane has an increasing distance with respect to the pivot axis 20h, whereby the clamping force increases with a pivoting movement of the locking element 2h becomes. According to the design principle, it is provided that the between the Clamping surface 21h and the intermediate element 6h formed clamping line 210h below Swivel axis 110h. The plane formed by it with the pivot axis 20h should form an angle α with respect to the orthogonal to the disc plane, which is at most twice as large as arc tan µ (µ = coefficient of friction).

To clarify the field of application of those described above 10 shows only the basic structure of a double-stranded variant Rope window lifter. The base body 1j of the fastening device are part of the Driver of the window lifter and slidably mounted on the guide rails 9. The The driving force necessary for the adjustment movement is generated by a motor 93 and via the gear 92 to the closed rope loop, which is guided over the rope pulleys 90 is transferred.

Reference list

1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1j

Basic body

10, 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10j

Base

11, 11a, 11b, 11c, 11d, 11dd, 11e, 11f, 11g, 11h, 11j

leg

12, 12a, 12b, 12c, 12d, 12e, 12f, 12g, 12h, 12j

leg

100b

Recess, spring catch

110, 110a, 110b, 110c, 110f, 111f

angled leg, free end

112

Reinforcement rib

2, 2b, 2'b, 2 "b, 2c, 2d, 2dd, 2e, 2f, 2g, 2h

Locking element

20th

flat contact surface

20a

Swivel axis

20'b

flat contact surface

20 "b

Swivel axis

20c, 20e

flat contact surface

20f

Support surface

20g, 20h

Swivel axis

21, 21a

convex surface

21'b

Abutment surface

21 "b

convex surface

21c

flat contact surface

21e, 21f, 21g, 21h

Contact surface with positive locking elements, Gearing

22

surface

22a

elastic range

22'b, 22h

Abutment surface

23

flat contact surface

23'b

Recess

24th

convex surface

25th

Cones

210, 210a, 210b, 210h, 220

Transfer line / clamping line

3rd

Window pane

30th

Disc hole

31

inlay

300

Pull-off direction of the window pane

4th

Coil spring

4a

Spring element, elastomer

4b

Leaf spring

4c, 4d, 4dd

Coil spring

4e

Leaf spring

4f

Coil spring

4g

Spring clip

4h

Leaf spring

40b

Locking element

5a

Spring element, elastomer

6c, 6e, 6f, 6g, 6h

Intermediate element

60e, 60f, 60g, 60h

Gearing

61g

Cones

7

Unlocking tool

8th

Lifting rail

80

Leadership backdrop

9

Guide rail

90

Rope pulley

91

Bowden

92

transmission

93

engine

α

angle

ζ

Angle of friction

µ

Coefficient of friction

E1, E1a, E1b, E2, E2a, E2b

level

Claims (21)

Device for fastening a displaceable window pane (3) to a window regulator of a motor vehicle with a base body (1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1), which is open for the introduction of an edge region of the window pane (3) , 1h, 1j), whose side legs (11, 11a, 11b, 11c, 11d, 11dd, 11e, 11f, 11g, 11h, 11j, 12, 12a, 12b, 12c, 12d, 12e, 12f, 12g, 12h, 12j) are connected to one another via a base (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10j), as well as with at least one displaceably and / or pivotably mounted locking element, which is located in the gap of the Basic body (1, 1a, 1b, 1c, 1d, le, 1f, 1g, 1h, 1j) inserted window pane (3) on the one hand on one of the side legs (11, 11a, 11b, 11c, 11d, 11dd, 11e, 11f, 11g, 11h, 11j) and on the other hand on the side surface of the window pane (3),
characterized by
that the locking element (2, 2b, 2'b, 2 "b, 2c, 2d, 2dd, 2e, 2f, 2g, 2h) resilient against the insertion direction of the window pane (3) and / or transversely to the plane of the window pane (3) is mounted, whereby a displacement and / or pivoting movement in the direction of the spring force reduces the gap of the base body (1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1j) or - with the window pane (3 ) - the pressure of the locking element (2, 2b, 2'b, 2 "b, 2c, 2d, 2dd, 2e, 2f, 2g, 2h) increased on the window pane (3). Device according to claim 1, characterized in that the gap of the base body (1, 1b, 1c, 1d, 1e) between the window pane (3) and the supporting surface of the locking element (2, 2b, 2c, 2d, 2dd, 2e) on Legs (11, 11b, 11c, 11d, 11dd, 11e) of the base body (1, 1b, 1c, 1d, 1e) against the direction of insertion of the window pane (3), ie in the direction of withdrawal (300) of the window pane (3), narrowed. _{(Fig. 1,3,4,5 6)} Device according to one of the preceding claims, characterized in that the locking element (2, 2c, 2d, 2dd, 2e) is formed in one piece and can be displaced essentially parallel to the plane of the window pane (3). _{(Fig. 1, 4, 5, 6)} Device according to one of the preceding claims, characterized in that the locking element (2) is designed essentially as a rigid body with a flat contact surface (20) parallel to the inner surface of the associated leg (11) of the base body (1), this contact surface (20 ) in the withdrawal direction (300) of the window pane (3) above a release line (clamping line 210) merges into a convex surface (21), and that the locking element (2) on its contact surface (23) assigned to the window pane (3) against the withdrawal direction (300) of the window pane (3) below a release line (clamping line 220) merges into a convex surface (24), and that the leg-side release line (clamping line 210) lies above the pane-side release line (clamping line 220). _{(Fig. 1)} Apparatus according to claim 4, characterized in that the angle (α) enclosed by the plane (E1) of the two separation lines (210, 220) and a plane (E2) running orthogonally to the disk plane is at most twice as large as the friction angle (ζ) , where the friction angle ζ = arc tan µ (µ = coefficient of friction). _{(Fig. 1)} Device according to claim 4, characterized in that the convexly curved surfaces (21, 24) have an arcuate contour. _{(Fig. 1)} Apparatus according to claim 4, characterized in that the convexly curved surfaces (21, 24) have a contour with a changing diameter, the further the distance from the detachment lines (210, 220). _{(Fig. 1)} Device according to Claim 4, characterized in that a spring receptacle, for example in the form of a pin (25) or a recess (100b), is formed on the underside of the locking element (2, 2b) and is connected to one end of the spring (4, 4b) can be connected, while the other end of the spring (4, 4b) is assigned to the base (10, 10b) of the base body (1, 1b). _{(Fig. 1, 3)} Device according to one of claims 1 and 2, characterized in that the locking element (2b) consists of a slide (2'b) and a clamping body (2 "b) pivotably mounted thereon, the clamping surface (21" b) of the window pane (3 ) and is convexly curved, the radius of the clamping surface (31 "b) increasing counter to the withdrawal direction (300) of the window pane (3). (Fig. 3) Device according to one of claims 1 and 2, characterized in that the locking element (2a, 2g, 2h) is formed in one piece and is pivotably mounted on one of the legs (11a, 11g, 11h) of the base body (la, 1g, 1h). _{(Fig. 2, 8, 9)} Apparatus according to claim 10, characterized in that the clamping surface (21a) of the locking element (2a) assigned to the window pane (3) is convexly curved, the radius of the clamping surface (21a) increasing counter to the withdrawal direction (300) of the window pane (3). _{(Fig. 2)} Apparatus according to claim 11, characterized in that the clamping surface (21a) is resilient. _{(Fig. 2)} Apparatus according to claim 11, characterized in that the spring element (4a) is connected to the locking element (2a), preferably in one piece, and is designed in so-called 2-component plastic technology, the spring element (4a) being located on the side leg (11a) of the base body (la) is supported. _{(Fig. 2)} Apparatus according to claim 9 or 11, characterized in that in the lowest position of the window pane (3) the clamping line (210a, 210b) formed between the clamping surface (21a, 21 "b) and the window pane (3) below the pivot axis (20a, 20 "b) of the clamping body (2a, 2" b). _{(Fig. 2, 3)} Device according to Claim 14, characterized in that the plane (Ela, E1b) of the clamping line (210a, 210b) and the pivot axis (20a, 20 "b) on the one hand and a plane (E2a, E2b) running orthogonally to the disc plane on the other included Angle (α) is at most twice as large as the friction angle (ζ), the friction angle ζ = arc tan µ (µ = coefficient of friction) _{(Fig. 2, 3)} Device according to claims 1 to 3, characterized in that the locking element (2c, 2e) is wedge-shaped. _{(Fig. 4, 6)} Apparatus according to claims 1 to 3, characterized in that the locking element (2d, 2dd) is cylindrical. _{(Fig. 5)} Device according to one of the preceding claims, characterized in that an intermediate element (6c, 6e, 6f, 6g, 6h) is arranged between the window pane (3) and the locking element (2c, 2e, 2f, 2g, 2h), preferably with the window pane (3) is firmly connected. _{(Fig. 4, 6, 7, 8, 9)} Apparatus according to claim 18, characterized in that the intermediate element (6e, 6f, 6g, 6h) carries form-locking elements (60e, 60f, 60g, 60h) to which the form-fitting elements (21e, 21f, 21g, 21h) of the locking element (2e, 2f , 2g, 2h) are assigned. _{(Fig. 6, 7, 8, 9)} Apparatus according to claim 19, characterized in that the positive locking elements (60e, 60f, 60g) are sawtooth-shaped. _{(Fig. 6, 7, 8)} Device according to one of claims 1, 2, 18 and 19, characterized in that the locking element (2f) is formed in one piece and can be displaced essentially transversely to the plane of the window pane (3), the locking element (2f) being detached from the spring (4f) Direction on the window pane (3) is biased. _{(Fig. 7)}

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