EP2853668B1 - Retaining rail for holding a glass pane, glass pane and fixing method - Google Patents

Description

This invention relates to a support rail for receiving a glass sheet, a glass sheet with a support rail, and a method for fixing a glass sheet to a support rail.

It is known to attach glasses in retaining rails to use the glasses, for example, as doors, windows, partitions or the like., And to attach them to the support rail, for example, to parts of buildings, in particular to attach mobile. For fixing the glass pane to the support rail, various methods or different support rails are known in the prior art. For example, the DE 10 2004 009 880 B4 an adhesive construction for suspending, for example, a glass sheet on a roller carriage of a sliding door. The glass pane is glued to the roller carriage on one side and with one end face. Further examples can be found in, inter alia EP0709052A1 or DE102010016289 ,

It is also known to clamp the glass pane in a holding rail in order to secure it in a force-fitting manner. However, there is a risk that over time, the clamping force decreases and the retaining rail releases the glass pane in case of failure, which can lead to accidents. In particular, when clamping laminated safety glass, the film between the two glass layers can yield to the pressure, so that the glass sheet is thinner over time and thus also decreases the clamping force. This can be prevented according to the prior art, for example, by the glass sheet is pierced and by means of To make this hole a positive connection between the retaining rail and the glass. This is especially useful for thicker and heavier discs, as they often fail to clamp. However, making holes in glass is costly and expensive, especially if they are thick.

The object of the present invention is to propose a retaining rail or a glass pane with a retaining rail and a method for connecting the retaining rail to the glass pane, which achieve an easy-to-manufacture and durable connection between the retaining rail and the glass pane.

The invention relates to a retaining rail having a groove which is provided for receiving the glass sheet. The groove has two inner, opposing side walls, to which at least one, preferably two, intermediate layers are applied. This intermediate layer or the intermediate layers are fastened in the groove, for example held in a form-fitting manner and / or adhesively bonded or the like. The glass pane rests against one side of the intermediate layer (s) facing away from the inner side wall of the groove and is in contact with the intermediate layer (s). bonded. In this way, a bond between the glass sheet and the support rail over the intermediate layer (s) is made. Compared to the prior art, there is the advantage that the glass sheet is enclosed and glued from two sides, which prevents the splice can be subject to tensile stress. Rather, the splice is subject almost exclusively to a shear stress, which is optimal for splices and promises lasting durability. The intermediate layers, which are preferably made of an elastic or resilient material, also allow a mechanical adjustment of the geometry of the glass pane to the Internal geometry of the groove and the compensation of any existing deviations in shape. According to the invention, the intermediate layer has a recess which is directed towards the glass pane. This recess has an opening to the outside of the groove, which is formed for example as a channel. About this breakthrough adhesive can be introduced from the outside of the groove forth between the glass sheet and the intermediate layer to glue the glass sheet with the intermediate layer. In this way, a cohesive connection between the retaining rail and the glass pane is produced via the intermediate layer fastened in the groove. At the same time, a positive connection between the adhesive and the intermediate layer is produced by cured adhesive in the recess. Preferably, the recess has a vent through which air displaced by adhesive can escape.

In a further embodiment of the retaining rail, the recess is introduced into a surface of the intermediate layer, which is directed towards the glass pane and which constitutes an outer surface of the intermediate layer. The recess extends at least partially in the direction of the main surface of the glass pane and preferably in the direction of the groove. In order that adhesive does not escape to the outside at the edge of the groove, the groove in particular does not extend on a longitudinal edge of the outer surface facing the glass pane in the direction of the exterior of the groove. So it is possible to introduce adhesive at one end of the recess, which can spread through the recess to the end, without leaking on the way.

In a further embodiment of the retaining rail, the intermediate layer is from a side, which bears against the inner side wall of the groove, to a surface, which bears against the glass pane, from a first outer surface pierced to a second outer surface opposite the first outer surface. In such a recess introduced adhesive can cause a direct bonding of the retaining rail with the glass sheet on the adhesive, wherein the glass sheet is bonded to an inner side wall of the groove of the support rail. In one embodiment, the retaining rail is also broken from the groove to the outside of the retaining rail at a position at which the recess breaks through the intermediate layer. In this way, adhesive can be introduced through the opening through the retaining rail into the interior of the groove and into the recess. By a second such breakthrough venting of the recess can take place.

In a further embodiment of the retaining rail, the intermediate layer is self-adhesive, at least on an outer surface, in particular on the outer surface, which is directed to the side wall of the groove. Self-adhesive means that for the production of the bond no further action is required, as to bring the intermediate layer with the element to be bonded in combination. The adhesive for producing the self-adhesive compound is particularly preferably a pressure-sensitive adhesive.

In a further embodiment of the retaining rail, the groove encloses the intermediate layer in a form-fitting manner so that it can not be removed from the groove without deformation, at least when the glass pane is inserted in the groove.

In a further aspect of the invention, a glass sheet is proposed with a holding rail according to one of the embodiments described above. The glass pane may be, for example, a glass door, a window pane, a shower cubicle part or the like, or a part thereof.

In a preferred embodiment of the glass pane, the glass pane is a laminated safety glass pane. Such a disk tends to yield in the thickness direction due to the soft and creep-like center layer of plastic film and is particularly unsuitable for jamming in a groove, so that the proposed fastening solution for this is particularly advantageous.

In a further aspect of the invention, a fastening method is proposed, by means of which a glass pane can be fastened to a holding rail according to one of the embodiments described above. For this purpose, at least one, but preferably two intermediate layers are introduced into the groove in a first step. Between the intermediate layer and one of the inner side walls of the groove or between the two intermediate layers, the glass pane is introduced in a subsequent second step. Then, in a third step, the glass pane is glued to at least one, preferably two intermediate layers.

In one embodiment of the method, adhesive is poured from the exterior of the groove into the recess, the filling being at a location of the recess where there is a breakthrough between the exterior of the groove and the recess. More preferably, adhesive is filled into the recess until adhesive exits or nearly exits at another location where the recess has access to the exterior of the groove. In the context of this application also includes an end face of the intermediate layer, which is aligned normal to a longitudinal direction of the groove, to the outside of the groove, in particular, if it is freely accessible.

Figur 1a

eine schematische Ansicht der Halteschiene ohne die Glasscheibe;

Figur 1b

ein Querschnitt, welcher durch die Halteschiene aus Figur 1a verläuft, wobei die Glasscheibe und zwei voneinander verschiedene Ausführungsformen einer Zwischenlage zwischen der Glasscheibe und der Halteschiene in einer fiktiven Zusammenstellung dargestellt sind;

Figur 1c

ein Querschnitt, welcher durch die Halteschiene aus Figur 1a verläuft, wobei die Glasscheibe und zwei andere, voneinander verschiedene Ausführungsformen einer Zwischenlage zwischen der Glasscheibe und der Halteschiene in einer fiktiven Zusammenstellung dargestellt sind;

Figur 2a

eine schematische Ansicht einer ersten Ausführungsform der Zwischenlage;

Figur 2b

einen schematischen Querschnitt der ersten Ausführungsform der Zwischenlage;

Figur 2c

eine schematische Ansicht einer zweiten Ausführungsform der Zwischenlage;

Figur 2d

einen schematischen Querschnitt der zweiten Ausführungsform der Zwischenlage;

Figur 2e

eine schematische Ansicht einer dritten Ausführungsform der Zwischenlage;

Figur 2f

eine schematische Seitenansicht der dritten Ausführungsform der Zwischenlage;

Figur 2g

eine schematische Ansicht einer vierten Ausführungsform der Zwischenlage; und

Figur 2h

eine schematische Seitenansicht der vierten Ausführungsform der Zwischenlage.

Hereinafter, embodiments of the invention will be described in detail with reference to the accompanying drawings. In the drawings:

FIG. 1a

a schematic view of the support rail without the glass sheet;

FIG. 1b

a cross section which through the retaining rail FIG. 1a extends, wherein the glass sheet and two different embodiments of an intermediate layer between the glass sheet and the support rail are shown in a fictitious composition;

Figure 1c

a cross section which through the retaining rail FIG. 1a runs, wherein the glass sheet and two other, different embodiments of an intermediate layer between the glass sheet and the support rail are shown in a fictitious composition;

FIG. 2a

a schematic view of a first embodiment of the intermediate layer;

FIG. 2b

a schematic cross section of the first embodiment of the intermediate layer;

Figure 2c

a schematic view of a second embodiment of the intermediate layer;

Figure 2d

a schematic cross section of the second embodiment of the intermediate layer;

FIG. 2e

a schematic view of a third embodiment of the intermediate layer;

FIG. 2f

a schematic side view of the third embodiment of the intermediate layer;

Figure 2g

a schematic view of a fourth embodiment of the intermediate layer; and

FIG. 2h

a schematic side view of the fourth embodiment of the intermediate layer.

FIG. 1a schematically shows a view of the support rail 2, which may have a greater length than shown, as indicated by the interruption of the representation 2a. The support rail 2 has in the in the FIG. 1a The edge shown above a groove 3, which extends in the viewing plane in the interior of the support rail 2 and in a longitudinal direction L of the support rail 2 and the groove bottom is shown as a dashed line 3a. In the region of the groove 3, the retaining rail 2 is pierced by a breakthrough 4, which extends from the outer of the retaining rail 2 into the interior of the groove 3. Preferably, the opening 4 is circular. Through the opening 4 adhesive can be introduced into a recess, not shown, in an intermediate position in the groove in order to glue the intermediate layer with a glass pane, also not shown.

Figure 1 b shows a cross section through the in FIG. 1 a shown holding rail 2. In FIG. 1b In addition, two intermediate layers 5a and 5b and a disc 6 are shown, which is designed as a composite safety disc. The intermediate layers 5a and 5b and a portion of the glass pane 6 are in the groove 3 in the support rail 2. The groove 3 includes the groove bottom 3a and two inner side walls 3b. At the open end of the groove is located at each of the groove legs 8 each have a projection 7 which projects in a direction transverse to the side walls 3b and which forms a respective end of Nutinneneren. The intermediate layers 5a and 5b are each held by the projections 7 in a form-fitting manner in the groove 3. The projections 7 prevent or make it difficult to take off the intermediate layers 5a and 5b from the groove in the direction of the glass pane 7. The intermediate layers 5a and 5b respectively abut against a projection 7, a side wall 3b and the groove base 3a of the groove 3, or terminate shortly the groove base 3a or the projection 7. With a further outer surface, the intermediate layers 5a and 5b are in each case on one side of the glass pane 6 at. The intermediate layers 5a and 5b are flat, elongated elements, which are preferably made of a resilient or elastic material. The material may be, for example, an elastomer, which is preferably filled with fibers and / or other fillers. The side of the intermediate layers 5a and 5b, which bears against the inner side wall 3b of the groove 3, respectively, is glued to the side wall 3b, preferably by means of a pressure-sensitive adhesive. In this way, enters the positive connection through the projection 7 a material bond by said bonding.

Figure 1c is with the FIG. 1b except for other intermediate layers 5c and 5d instead of 5a and 5b identical. Identical features are designated by the same reference numerals and will not be described separately again. It is to the comments too FIG. 1b directed.

In order to connect the glass pane 6 with the support rail 2, - deviate from the representation in the FIGS. 1 b and 1 c - Initially, two identical intermediate layers 5a, 5b, 5c or 5d introduced and one side of these intermediate layers by means of a pressure sensitive adhesive in each case to an inner Sidewall 3b of the groove glued. The pressure-sensitive adhesive can be applied to the corresponding side of the intermediate layer 5a, 5b, 5c or 5d before, so that the intermediate layer 5a, 5b, 5c or 5d is self-adhesive. After the two same intermediate layers 5a, 5b, 5c or 5d are inserted into the groove 3, the glass sheet 6 is inserted between the sides of the intermediate layers 5a, 5b, 5c or 5d, which are the side of the intermediate layer 5a, 5b, 5c or 5d, which is glued to the side wall 3b, with respect to the intermediate layer 5a, 5b, 5c or 5d are arranged opposite one another. The thickness of the glass sheet 6 and the intermediate layers 5a, 5b, 5c or 5d can be chosen so that they are in sum slightly larger than the groove width to a slight bias in the groove and thus a secure concern of the glass to the intermediate layers 5a 5b, 5c or 5d. After the glass sheet 6 is inserted into the groove 3, the portion of the glass sheet 6 located between the intermediate sheets 5a, 5b, 5c or 5d, or a part thereof is adhered to the intermediate sheets 5a, 5b, 5c or 5d. In the case of the embodiment of US Pat Figures 1b . 2a and 2b illustrated intermediate layer 5a without recess is applied to the sides of the intermediate layers 5a, which are directed to the glass pane 6, each an adhesive which hardens after the introduction of the glass sheet 6 between the intermediate layers 5a or is curable. In this way, the glass sheet 6 is firmly bonded to the intermediate layers 5a.

As developments of the intermediate layer 5a are in the Figures 1 b or 1b and 2c and 2d or 2e and 2f or 2g and 2h illustrated intermediate layers 5b, 5c and 5d respectively provided with at least one recess, which is the introduction of adhesive between the glass sheet 6 and the intermediate layers 5b, 5c and 5d facilitated.

A first variant of the intermediate layers 5b with a recess 9 is in the Figures 1b . 2c and 2d shown. Figure 2d represents a cross section through the in Figure 2c The intermediate layer 5b is not shown in its full length, as indicated by the interruption 20b. The recess 9 has a rectangular cross section and preferably extends over the entire length of the intermediate layer 5b. The long side of the rectangular cross section of the recess 9 is parallel to the outer surface of the intermediate layer 5b, in which the recess 9 is inserted. Apart from the recess 9, the intermediate layer 5b has a rectangular cross section.

A variant of the intermediate layer 5b represents the intermediate layer 5c, which in the FIGS. 1c . 2e and 2f is shown. The intermediate layer 5c is similar to the intermediate layer 5b except for the difference that circular apertures 10 are introduced through the intermediate layer 5c. These preferably have a uniform distance from each other. Not all of the apertures 10 are shown, since the intermediate layer 5c in the FIG. 2e is shown shortened, as indicated by the interruption 20c. The openings 10 break through the intermediate layer 5c in a region in which the recess 9 extends. Preferably, the center of the apertures 10 is arranged on a center in the transverse direction of the recess 9. The FIG. 2f shows a side view of the intermediate layer 5c, in which parts of the contour of the apertures 10 are shown as dashed lines.

As a further variant of the intermediate layer 5a is in the Figure 2g the intermediate layer 5d shown. In this, an opening 11, 12 is present, which comprises a channel 11 and an enlarged channel end region 12. The intermediate layer 5d is shown shortened, as indicated by the interruption 20d. Through the channel-shaped opening 11 of Interposed layer 5d is divided into two at the side of the intermediate layer 5d, which lies from the enlarged channel end 12 in the direction of the channel 11. In the FIG. 2h is a side view of the intermediate layer 5d from the Figure 2g shown. Parts of the contours of the channel 11 and the enlarged channel end 12 are in FIG. 2h shown as dashed lines.

In the Figures 1b and 1c is shown in the groove 3, each of the variants of the intermediate layer 5a, 5b, 5c and 5d as a single intermediate layer 5a, 5b, 5c and 5d. In practice, however, a holding rail 2 is typically equipped in each case with two similar intermediate layers. With respect to the variants 5c and 5d of the intermediate layer is from the FIG. 1 c can be seen that by means of adhesive, which extends through the apertures 10 and 11 and 12, one side of the glass sheet 6 and an inner side wall 3b of the groove 3 are directly connected to each other. Since the openings 10 and 11 and 12 are preferably made relatively large area, the strength of the adhesive and not the strength of the intermediate layer itself is effective in the interior of the apertures 10 and 11 and 12, respectively.

LIST OF REFERENCE NUMBERS

2

retaining rail

3

groove

4

Breakthrough by groove legs

5a, 5b, 5c, 5d

Variants of the liner

6

pane

7

Projection on the inner groove edge

8th

groove leg

9

Recess in an outer surface of the liner

10, 11, 12

Recess that breaks through the liner

20a, 20b, 20c, 20d

Interruption of the presentation

Claims (9)

1. A holding rail (2) with a groove (3) for the reception of a glass pane (6) between two inner lateral walls (3a, 3b) of the groove (3), which are located opposite each other, and with an intermediate layer (5a, 5b, 5c, 5d), which is disposed between one of the inner lateral walls (3a, 3b) of the groove (3) and the glass pane (6), wherein, in the installed condition of the glass pane (6), the intermediate layer (5a, 5b, 5c, 5d) is glued to the glass pane (6) and attached within the groove (3), characterized in that the intermediate layer (5a, 5b, 5c, 5d) is provided with a recess (9, 10, 11, 12) oriented at least partially towards the glass pane (6), which recess is accessible from outside the groove (3) in such a manner that, after having installed the intermediate layer (5a, 5b, 5c, 5d) and the glass pane (6) within the groove (3), an adhesive may be introduced into the recess (9, 10, 11, 12) such that by means of the adhesive the glass pane (6) may be glued to the intermediate layer (5a, 5b, 5c, 5d), wherein, in particular at the location of a recess (9, 10, 11, 12) of the intermediate layer (5a, 5b, 5c, 5d), the holding rail (2) is penetrated by the groove (3) as far as to its outside.
2. The holding rail (2) according to claim 1, characterized in that the recess (9, 10, 11, 12), in an exterior surface of the intermediate layer (5a, 5b, 5c, 5d) oriented towards the glass pane (6), extends towards the groove (3), and in particular does not extend at a longitudinal border of the exterior surface of the intermediate layer (5a, 5b, 5c, 5d) in the direction of the outside of the groove (3).
3. The holding rail (2) according to any of the preceding claims, characterized in that the intermediate layer (5a, 5b, 5c, 5d) is penetrated by the recess (9, 10, 11, 12), wherein in particular at a recess (9, 10, 11, 12) of the intermediate layer (5a, 5b, 5c, 5d), which penetrates through the intermediate layer (5a, 5b, 5c, 5d), also the holding rail (2) is penetrated by the groove (3) as far as to its outside.
4. The holding rail (2) according to any of the preceding claims, characterized in that the intermediate layer (5a, 5b, 5c, 5d) is self-adhesive at least at one exterior surface, in particular at the exterior surface, which is oriented to the lateral wall (3a, 3b) of the groove (3).
5. The holding rail (2) according to any of the preceding claims, characterized in that the groove (3) positively surrounds the intermediate layer (5a, 5b, 5c, 5d) in such a manner that the intermediate layer (5a, 5b, 5c, 5d) is attached at least partially positively between the glass pane (6) and the groove (3).
6. A glass pane (6) including a holding rail (2) according to any of the preceding claims.
7. The glass pane according to claim 6, characterized in that the glass pane (6) is a composite safety glass pane.
8. A method for fastening a glass pane (6) to a holding rail (2) according to any of the claims 1 to 7, characterized in that in a first step at least one intermediate layer (5a, 5b, 5c, 5d) is introduced into the groove, and, in a subsequent second step, the glass pane (6) is introduced between the intermediate layer (5a, 5b, 5c, 5d) and an inner lateral wall of the groove or between two intermediate layers (5a, 5b, 5c, 5d) into the groove, and, in a third step following the second step, the glass pane (6) is glued to at least one intermediate layer (5a, 5b, 5c, 5d).
9. The method according to claim 8 for fastening a glass pane (6) to a holding rail (2) according to any of the claims 2 to 8, characterized in that the adhesive will be filled into the recess (9, 10, 11, 12) from outside of the groove (3) through an access to the recess (9, 10, 11, 12), in particular as far as to exit, or almost exit, at another access of the recess (9, 10, 11, 12) to the outside of the groove (3).

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