EP2546448A2 - Device for pushing a slide element - Google Patents

Abstract

The device (100) has movable support provided in lower portion of sliding element (1) by external roller device (10). A fastening element (3) is provided on sliding element side facing roller device, to secure rail (4) on sliding element underside. The fastening element is connected to sliding element underside in partially form-fitting state. The fastening element is connected on sliding element side surfaces (1a,1b) in a state laterally relative to transverse dimension, such that fastening element does not extend beyond sliding element side faces.

Description

The invention relates to a device for horizontal linear displacement of one or more sliding elements, e.g. sliding elements in the form of a glass element or a wall element, wherein the sliding element is linearly displaceably mounted in an upper region and in a lower region in the horizontal direction, and wherein the displaceable mounting in the lower region of a sliding element by means of an external roller device, wherein the roller device more along the direction of displacement of the sliding element arranged rollers, on which the sliding element is mounted by means of at least one rail, which at least one rail is attached to the underside of the sliding element, wherein the sliding element on its side facing the roller device at least one fastening element for securing the at least one rail has at the bottom of the sliding element

In contemporary architecture, there is a great need for large, flush floor and ceiling sliding elements, such as in the form of sliding glass walls to create openable transitions from the inside out, for. B. from a living room to a terrace.

The frames of the glass elements used should be as delicate as possible, so as not to interfere with the light and to emphasize the ease of construction. The rail construction should visually appear as little as possible, flush with the floor and easy to walk on. In addition to these formal requirements, today there are also high demands on the tightness and thermal insulation values of such sliding systems.

The vast majority of currently known sliding glass door systems have such. B. in the EP 1353 034 A2 described, a more or less wide outer frame made of wood, plastic or aluminum. Such frames take light away, increase the width of the sliding construction and act thermally unfavorable as cold bridges.

The currently known guide systems of sliding doors can be essentially divided into three groups:

1) hanging version

At the top of the sliding element, two or more roll apparatuses, which travel in a rail running over the sliding element, are seated at the top. In the lower part of such doors are held on a sliding guide. Such constructions have the advantage that the floor installations are inexpensive. However, they can not be used for large glass elements for weight reasons.

2) standing version with rollers on the sliding element

In this variant, as z. B. in the EP 1 353 034 A2 is described, the rollers are mounted on the underside of the sliding element and run on rails on the ground. These rails can be designed as U-profiles, which are installed sunk in the ground. The sliding element engages in the U-profile, whereby the roll apparatus and the frame are partially covered and a floor-flush construction is possible. For glass sliding walls, this is currently the most common solution.

The disadvantage of this construction is that very wide grooves occur in the floor area, especially in multi-track installations and the use of triple insulating glass elements. These grooves can become dirty, the water can collect in them and they are uncomfortable to commit.

3) vertical version with external rollers

In the WO 94/17275 there is disclosed a rolling system in which the sliding element has no roll apparatus. Instead, rollers are arranged in the bottom-side holding profile instead of the running rail at regular intervals. On this runs the glass element, which is provided only with a circumferential frame of folded sheet metal. The guide of the glass element in the transverse direction is effected by two strip brushes, which sit in recesses in the vertical flanges of the holding profile. The frame is so slim that it disappears completely in the holding profile. However, here too, wide grooves are created in the ground, with all the above-mentioned disadvantages.

In the US 5,671,501 a rail system is preferably described for shower partitions in which the rail apparatus consists of individual slats, which are held together by transverse bolts. These cross pins serve as axes for rotatable sleeves, on where the sliding elements run. The guide in the transverse direction is similar to WO 94/17275 by an intervention of the sliding element in the slat gap.

It is an object of the invention to provide an improved device for shifting sliding elements in view of the above-mentioned problems.

This object is achieved with a device mentioned in the introduction, that according to the invention the underside of the sliding element has a different shape from a continuous plane, and wherein the at least one fastening element is at least partially positively connected to the underside of the sliding element, and wherein the at least one fastening element the two side surfaces of the sliding element flush adjoins or the fastener laterally does not protrude over the side surfaces in terms of its transverse extent.

The fastener is not on the sliding elements over its side surfaces and is connected only at the bottom with the sliding element, so does not affect the side surfaces over. Thereby, the sliding element can be kept slim and the fastener does not widen the sliding element. The frame can be optically very narrow or completely invisible at the bottom.

The side surfaces are those surfaces which are vertical and lie in the direction of displacement; in contrast to the end faces, which are normal to the direction of displacement. The side surfaces are e.g. Glass panes in a glass sliding element.

The fastener is - after installation - part of the edge bond of the sliding element and is preferably flush mounted in the edge seal.

Furthermore, the object is achieved with a device mentioned in the introduction, in which according to the invention the roller device has longitudinally extending lamellae, between which lamellae the rollers of the roller device are arranged, wherein the at least one rail projects at least partially into the lamella intermediate space.

The at least one rail can be made narrower than the fastening element and thus also narrower than the sliding element per se. By doing that the rail and not the entire sliding element projects into the space between the slats, the lower outer edges of the sliding element can be arranged above the upper edge of the lamellar grid.

Also in this context, it is of course, as already discussed, advantageous if the underside of the sliding element has a deviating from a continuous plane shape, and the at least one fastening element with the underside of the sliding element is at least partially positively connected, and wherein the at least one Fastening element flush adjoins the two side surfaces of the sliding element or the fastening element laterally does not protrude beyond the side surfaces in terms of its transverse extent.

It is advantageous if the fastening element contacts the underside at least in the edge region or the edge regions of the underside of the sliding element.

The term "edge area" here refers to the area in which the underside merges into the side surfaces (and not the transition area bottom side - end faces).

In this way, the sliding element is held together stably and in particular, the fastening element can also serve as fall protection for the side surfaces of the sliding element.

The fastener may directly contact the underside of the contact area (and, e.g., mechanical connection such as by screws or bolts) or the fastener may be adhesively bonded to the underside in the contact area; The term "contact" thus also includes that between the bottom and fastener, an adhesive may be provided.

With regard to the achievable stability of the edge bond, it is advantageous if the fastening element contacts the underside of the sliding element along its entire longitudinal extent, at least in the edge area (s).

It can also be provided that the fastening element contacts the underside of the sliding element along its entire transverse extent.

The term longitudinal extension means "in the direction of displacement" of the sliding element, while "transverse" or "transverse extent" means normal to the longitudinal extent.

In a specific variant of the invention, it is provided that at least one depression in the form of a groove extending in the longitudinal direction of the sliding element is provided on the underside, into which at least one groove protrudes the fastening element at least with a fastening element section.

The sliding element is supported on the fastening element via the groove. The fastening element contacts the underside of the sliding element in the edge regions; but it can also be provided that the fastening element additionally contacted in the groove, the underside of the sliding element over the entire surface, so that there is a full-surface connection with the entire bottom. The actual connection can be made by means of screws, bolts etc or preferably by means of adhesive, and a combination of these connection possibilities is conceivable.

A good connection between the fastening element and the sliding element also results if the underside has in its edge regions, towards the side surfaces at least one chamfer running in the longitudinal extension or at least one fold, wherein the fastening element at least in the region of the chamfers the underside of the sliding element or seams contacted over the entire surface or connected to this area.

As already mentioned, it is expedient if the fastening element is adhesively bonded to the underside at least in certain regions, specifically at least at the contact surfaces in the edge region. In principle, however, a full-surface bonding of the fastening element may be provided with the underside of the sliding element.

As already mentioned, the fastening element is integrated in the edge connection of the sliding element and also establishes a connection to the rail on which the sliding element can be moved on the rolling device.

It can be provided that the at least one rail is attached to a fastener, that is, that the rail and fastener are formed as separate components and are assembled during assembly of the device, or it is with Advantage provided that fastener and rail are integrally formed. The one-piece design of fastener and rail (the rail is integrally integrated into the fastener) has advantages in terms of stability and installation costs, a two-part design (rail and fastener formed as separate components), for example, in retrofits beneficial.

Another advantage of Zweistückigkeit is that the thermal insulation properties in the region of the fastener can be significantly improved by a suitable choice of the material for the fastener. For example, when using GRP as a material for the fastener (see also below), the adhesive joint between the fastener and the side surfaces in the form of glass elements can be made very narrow, since GRP and glass have a very similar or almost identical thermal expansion coefficient. However, GRP is not suitable as a rail material, so that proves to be a two-part design in which the rail itself is formed of a suitable material or at least the outside of the rail, if it is made of fiberglass in one piece with the fastener, with a covering ( = second part) is provided.

It is particularly advantageous if the at least one rail has a smaller width / transverse extent than the fastening element or the width of the underside of the sliding element.

For stability reasons, it is further advantageous if the rail is mounted centrally in relation to the fastening element on this or connected thereto.

Furthermore, it is advantageous if the roller device is arranged below a floor top edge or extends to a maximum level with the floor top edge.

By buried in the ground roller device a good accessibility is guaranteed.

In particular, it is provided that the upper edges of the rollers of the roller device are below the floor level.

For the purpose of good accessibility and for reasons of weather protection, it is also expedient if the roller device has lamellae extending in the longitudinal direction, between which lamellae the rollers of the roller device are arranged.

The roller device thus has a lamellar grid, formed by a bandage of lamellae running parallel to the sliding direction.

It is particularly advantageous if the rollers are not over the top of the lamellar Association before.

It can also be advantageously provided that the slats are connected to each other by means of running under the slats cross members.

About this cross beams, the slats can be easily attached to a substructure. At the same time, the cross members act as spacers to the substructure, whereby a problem-free drainage can take place.

In order to ensure a good lateral support of the sliding element on the rollers, it is advantageously provided that the rollers have tapered running surfaces on which rests the at least one rail with its rail profile, wherein preferably the rollers have two beveled, tapered running surfaces.

In principle, the invention can be used for any sliding walls, but the invention is particularly well suited for glass sliding elements, such as insulating glass elements, as doors, windows, sliding walls u. Like. Can be used.

In this context, it is accordingly provided that one or more, preferably all sliding elements are designed as glass sliding elements, with at least two or more, in particular three glass panes, is / are.

With the invention glass sliding elements with almost any size glass panes in triple glazing can be performed flush with the floor, the glass sliding elements without external and internal frame and without wide grooves in the bottom area. In this embodiment, it is provided that the two side surfaces are formed by glass sheets, wherein the at least one fastening element, the two side surfaces contacted on its underside or is connected thereto.

Finally, it is still advantageous if, in the case of a three-glass or multiple-glass sliding glass element, the at least one intermediate disk protrudes less far down than the two outer disks, and wherein the fastening element protrudes with at least one portion into the free space created between the two outer disks.

• Fig. 1 einen Vertikalschnitt durch eine erfindungsgemäße Vorrichtung mit mehreren Schiebeelementen,
• Fig. 2 eine Draufsicht auf die Vorrichtung aus Figur 1,
• Fig. 3 einen Vertikalschnitt durch eine beispielhafte Vorrichtung im Bodenbereich mit einer Darstellung von mehreren Realisierungen der Erfindung,
• Fig. 4 einen schematischen Vertikalschnitt durch eine weitere beispielhafte Vorrichtung im Bodenbereich,
• Fig. 4a ein beispielhaftes Detail Schiene - Rad,
• Fig. 5 einen schematischen Vertikalschnitt durch noch eine weitere beispielhafte Vorrichtung im Bodenbereich, und
• Fig. 6 einen schematischen Vertikalschnitt durch noch eine weitere beispielhafte Vorrichtung im Bodenbereich.

In the following the invention is explained in more detail with reference to the drawing. In this shows

• Fig. 1 a vertical section through a device according to the invention with a plurality of sliding elements,
• Fig. 2 a plan view of the device FIG. 1 .
• Fig. 3 FIG. 2 a vertical section through an exemplary device in the floor area with a representation of several implementations of the invention, FIG.
• Fig. 4 FIG. 2 shows a schematic vertical section through a further exemplary device in the floor area, FIG.
• Fig. 4a an exemplary detail rail - wheel,
• Fig. 5 a schematic vertical section through yet another exemplary device in the bottom area, and
• Fig. 6 a schematic vertical section through yet another exemplary device in the bottom area.

FIG. 1 shows a vertical section through an inventive device 100 with a plurality of sliding elements 1, wherein in the section shown three sliding elements 1 can be seen. In the example shown, the sliding elements 1 are glass sliding elements.

The sliding elements 1 are linearly displaceable in an upper region and in a lower region in the horizontal direction (i.e., in the direction normal to the plane of the page), i. the sliding elements are displaceable along their longitudinal extent.

The displaceable storage takes place in the lower region of the sliding elements 1 by means of an external roller device 10, while the storage in the upper region, for example, takes place with a sliding bearing device 50.

FIG. 2 shows the device 100 with the sliding elements 1, which are slidably mounted on the roller device 10, in a schematic plan view.

The roller device 10 has several along the direction of displacement of the sliding element 1 arranged rollers 11, as shown in FIG. 2 can be seen.

FIG. 3 now shows the device 100 in a vertical section through the device, in a lower region of the sliding elements 1 and in the region of the roller device 10th

For instructive reasons, three different embodiments of the invention are shown in one figure; In principle, such a mixture is of course conceivable, but in practice only one type of fastener-rail-slide element combination will usually be used.

As can be seen, the roller device 10 is arranged below a floor upper edge FOK. By buried in the ground roller device a good accessibility is guaranteed. For good accessibility is also provided that the roller device 10 has longitudinally extending lamellae 12, between which slats 12, the rollers 11 of the roller device 10 are arranged. The roller device thus has a lamellar grid, formed by a bandage of lamellae running parallel to the sliding direction.

Each of the three sliding elements 1 is slidably mounted by means of a separate rail 4 on a plurality of rollers 4 arranged one behind the other.

In particular, it is provided that the upper edges 11 "(see, eg Figure 4,4a ) of the rollers 11 of the roller device 10 are below the upper floor edge FOK, where it is as shown of particular advantage, if the rollers are not on the upper edge of the laminate laminate OKL (see FIG. 3 ) stand out.

Adjacent rollers 11 are rotatably mounted on a common, rigid shaft / axis 14, preferably ball-bearing mounted. The shaft 14 itself is rigidly attached to the slats. Furthermore, the slats 12, as in FIG. 3 shown to be interconnected by means of extending under the slats 12 cross members 13.

In FIG. 3 In each case there are rollers in every second or third slat gap and thus form the lanes for the sliding elements.

About this cross beams, the slats can be easily attached to a substructure. At the same time, the cross members act as spacers to the substructure, whereby a problem-free drainage can take place.

The three sliding elements 1 are designed as glass sliding elements and each consist of two outer side surfaces or glass panes 1a, 1b and a middle glass pane 1c. The intermediate disc 1c protrudes less far down than the two outer discs 1a, 1b.

The discs 1a, 1b, 1c are held in a known manner by means of spacer elements 70 at a distance from each other.

All three sliding element 1 shown are mounted by means of a rail 4 on the associated rollers 11, wherein the rail 4 is mounted respectively on the underside 2 of the sliding element 1; also be on the FIG. 4 refer, which shows the left sliding element 1 with removed fastener 3.

Each sliding element 1 now has, on its underside 2 facing the roller device 10, a fastening element 3 for fastening the at least one rail 4 to the underside 2 of the sliding element 1.

The fastening element 3 of the left sliding element (see also FIG. 4 ) is integrally formed with the rail 4, while in the middle and right sliding element, the fastening element and the rail are formed separately.

As in FIG. 3 and 4 can be clearly seen, the underside 2 of a sliding element 1 has a deviating from a continuous plane shape, namely the bottom 2 of a glass sliding element 1 from the two bottom sides 2 'of the glass sheets 1a, 1b and (in those areas where a spacer element 70) is provided from the outer side or faces 2 "of the spacer element 70, as well as from the underside of the slide 1c, as well as a part of the inner surfaces of the discs 1a, 1b and the side surfaces of the disc 1c protruding into the region 21.

The fastener 3 is connected to the bottom 2 of the sliding element 1 at least partially positively and closes at the two side surfaces 1a, 1b of the sliding element 1 flush.

Flushing means that the outer surface of the side surfaces 1a, 1b and the outer sides of the fastening element 3 lie in a common plane.

The fastener is not in the sliding element 1 on the side surfaces 1a, 1b and is connected only at the bottom with the sliding element, so does not affect the side surfaces over. Thereby, the sliding element can be kept slim and the fastener does not widen the sliding element. The frame can be optically very narrow in the lower area.

The fastener is - after installation - part of the edge bond of the sliding element and is preferably flush mounted in the edge seal.

The fastening element 3 makes contact with the underside 2 at least in the edge regions 2 ', ie in the example shown on the undersides 2' of the glass panes 1a, 1b of the sliding element 1. Preferably, however, as shown in FIG FIG. 3 The adhesive 90 is also clearly visible in the region between the disks 1a, 1b, so that the outer disks 1a, 1b are in each case tightly connected to the middle disk 1c.

In this way, the glass sliding element is held together stably and in particular, the fastening element can also serve as fall protection for the glass surfaces 1a, 1b of the sliding glass element.

The fastener may directly contact the underside of the contact area (and, e.g., mechanical connection such as by screws or bolts) or the fastener may be adhesively bonded to the underside in the contact area; The term "contact" thus also includes that between the bottom and fastener, an adhesive may be provided.

In FIG. 3 is shown in all variants, that the fastening element 3 is bonded to the underside 2, the adhesive layer between the fastening element 3 and the sliding element 1 is designated by the reference numeral 90.

Between the side surfaces 1a, 1b or the glass panes 1a, 1b and the fastening element 3 is a (horizontal) gap which is filled with adhesive 90, so that a continuous, flush outer surface (outer surface of the discs 1a, 1b, adhesive 90th , Outer surface of the fastening element 3).

The fastening element forms an edge bond with the outer glass panes or the outer glass panes are connected to one another by means of the fastening element in an edge bond.

The glass element (or the sliding element in general) and the fastening element are thus connected positively in a continuous manner, the fastening element can thus be considered in the assembled state as part of the sliding element.

The sliding element 1 is mounted vertically on the fastening element 3 and thus standing on the rail 4.

The fastening element 3 preferably contacts the underside 2 of the sliding element 1 along its entire longitudinal extent.

In addition, a stable connection results, in particular, if, as in FIG. 3 illustrated the fastener 3 along its entire transverse extent contacted the bottom 2 of the sliding element 1, the adhesive layer 90 thus extends continuously from one edge of the disc or the side surface 1a to the other disc or side surface 1b.

In principle, it should be noted that the underside of the sliding element in the event that the spacer elements extend 70 (70 ') over the entire longitudinal extent of the sliding element, a quasi-continuous underside. Of course, it can also be provided that spacer elements are provided only selectively, in the areas between the spacers thus there is no continuous bottom, but the sliding elements is initially "open" and is only by introducing the adhesive 90, which also acts as a seal, and the fastener completed. In the areas between the spacers, the adhesive is as far as necessary, usually introduced approximately up to the level of the underside of the spacer elements.

As already mentioned, it is beneficial if, as in FIG. 3 and particularly FIG. 4 In the case of a triple or multiple glass sliding glass element 1, the at least one intermediate disk 1c protrudes less far downwards than the two outer disks 1a, 1b. The resulting free space between the two outer disks 1a, 1b forms a groove 21 extending along the longitudinal extent on the underside 2 of the sliding element 1, and the fastening element 3 can project into this groove 21 with a section 3a.

The sliding element 1 is supported on the fastening element 3 via the groove 21. The fastening element 3 contacts the underside of the sliding element 1 in the edge regions; but it can also be provided that the fastening element additionally contacted in the groove, the underside of the sliding element over the entire surface, so that there is a full-surface connection with the entire bottom. The actual connection can be done by means of screws, bolts etc or preferably by means of (elastic) adhesive, a combination of these connection possibilities is conceivable.

The lower edge of the sliding elements is in the illustrated embodiment ( FIG. 3, 4 ) formed as a U-shaped stepped fold, in which a hat-shaped fastening element, preferably made of anodized aluminum, is glued. Between the glass edge of the middle pane 1c and the fastening element 3 punctiform intermediate layers of plastic (not shown) can be introduced, via which the load transfer of the glass element takes place. The hat flanges of the profile can be made very delicate. They form the mechanical fall protection for the two outer panes and can simultaneously serve as a carrier of a sealing profile on the inside or as edge protection for the glass element on the outside.

Once again FIG. 3 Coming back in the variant left, the fastener 3 made of a metal, preferably made of anodized aluminum. The fastener 3 and the rail 4 are made in one piece.

However, the fastening element 3 can also be formed, for example, from GFRP (glass fiber reinforced plastic), as shown in the middle. The fastener 3 has a groove into which the - preferably metallic - rail 4 is inserted. The rail 4 is secured in the groove in the longitudinal direction against displacement.

On the right is shown a variant in which the fastening element 3 is formed from two GRP plates (for example extruded GRP), the rail 4 is screwed by means of a fastening element, for example a screw 105, through the FRP plate.

FIGS. 5 and 6 show yet another variant of the invention, here the example of a double glazing, this variant is just as well suited for 3- or multiple glazing.

The two outer discs 1a, 1b are held by means of spacers 70 'at a distance from each other.

The sliding element 1 has on its underside 2 in the edge regions, to the side surfaces 1 a, 1 b in each case at least one extending in the longitudinal direction chamfer 22, wherein the fastener 3, the underside 2 of the sliding element 1 at least in the region of the chamfered area 22 contacted over the entire surface or connected to this area. The connection is made by means of a preferably elastic adhesive layer 90 analogous to the embodiments FIG. 3 and Figures 4 and 4a , As well as in the Figure 3 - 4a shown Embodiments also serve in the embodiment according to FIGS. 5 and 6 the adhesive 90 as a seal for sealing the underside of the sliding element. 1

As adhesive 90, for example, silicone, such as a two-component silicone is used.

The underside of the sliding element facing surface of the fastener has for this purpose a corresponding configuration, with rising towards the edge, preferably flat trained cheek areas 3 ', by means of which the fastener 3 engages around the bottom in the chamfered area 22, without over the side surfaces 1a, 1b to face.

The fastening element 3 makes contact with the underside 2 over the whole area in the area 2 'of the underside of the panes 1a, 1b (the bonding by means of adhesive 90 takes place in the region of the chamfer 22 on the glass panes 1a, 1b) and preferably also on the outer surfaces 2 "of the or Spacer 70 'is therefore preferably a "full-surface" (as far as just one surface is present, see above) bonding of the fastener provided with the underside of the sliding element.

The rail 4, by means of which the sliding element 1 is mounted on the rollers 11 of the roller device, has a corresponding profile, with which it cooperates with the rolling surfaces of the rollers 11.

The rails 4 have a significantly smaller width / transverse extent than the fastening element 4 or as the width of the underside of the sliding element.

Thereby, the distances between the slats 12 can be kept small and do not have to be as wide as or wider than the sliding element, as in the prior art, but can e.g. only half as wide or only one third as wide as the width of the sliding element.

The rails 4 are mounted centrally in relation to the fastening element 3 on this or connected thereto.

The FIGS. 4 and 6 show a first embodiment of the rolling surfaces of the rollers 11. The rollers 11 have two bevelled outer rolling surfaces 11 ', which converge and end in two separate tips 11'.

On these two rolling surfaces 11 'is the rail 4 with correspondingly shaped, flat profile surfaces 4' form-fitting manner, i. the profile surfaces 4 'engage around the roller 11 at the outer rolling surfaces 11'.

FIG. 4a shows a role with a fundamentally identical structure as those in FIG. 4 or 6, with the difference that here the rolling surfaces 11 'are arranged on the inside and converge, for example, pointed. The rail 4 engages with its converging profile in the groove 11 thus formed in the rollers and lies with the profile surfaces 4 'form-fitting manner on the rolling surfaces 11'a.

FIG. 5 shows a variant in which the rolling surfaces 11 'in an edge, preferably pointed, converge, the rail 4 surrounds the two rolling surfaces and rests on these form-fitting manner.

The rail 4 is thus on the tapered running surfaces 11 'of the rollers 11. The rails and rollers have a profile, for example in the form of a rectangular groove, a V-groove or an outside chamfer.

The rail profile surrounds the rollers or engages in the converging running surfaces and rests on these. As a result, the rail and thus the sliding element firmly - especially in interaction with the storage in the upper area - secured against lateral loosening of the rollers or lateral tilting.

The rails protrude down over the sliding element.

Claims (15)

Device (100) for horizontal linear displacement of one or more sliding elements (1), eg of sliding elements (1), characterized in that in the form of a glass element or a wall element, wherein the sliding element (1) in an upper region and in a lower region in horizontal Direction is linearly displaceable,
and wherein the displaceable mounting in the lower region of a sliding element (1) takes place by means of an external roller device (10),
wherein the roller device (10) has a plurality of rollers (11) arranged along the displacement direction of the sliding element (1),
on which the sliding element (1) is mounted by means of at least one rail (4), which at least one rail (4) is attached to the underside (2) of the sliding element (1),
wherein the sliding element (1) has on its underside (2) facing the roller device (10) at least one fastening element (3) for fastening the at least one rail (4) to the underside (2) of the sliding element (1),
characterized in that
the underside of the sliding element (1) has a different shape from a continuous plane, and wherein
the at least one fastening element (3) is connected to the underside (2) of the sliding element (1) in a form-fitting manner at least in regions, and wherein
the at least one fastening element (3) adjoins flush on the two side surfaces (1a, 1b) of the sliding element (1) or the fastening element (3) does not protrude laterally beyond the lateral surfaces (1a, 1b) with respect to its transverse extent. Apparatus according to claim 1, characterized in that the fastening element (3) the surface (2) at least in the edge region (2 ') of the underside (2) of the sliding element (1) contacted flat. Apparatus according to claim 1 or 2, characterized in that the fastening element (3) along its entire longitudinal extent the bottom (2) of the sliding element (1), at least in the / the edge areas contacted, and / or the fastening element (3) along its the entire transverse extension of the bottom (2) of the sliding element (1) contacted. Device according to one of claims 1 to 3, characterized in that on the underside (2) at least one recess in the form of a in the longitudinal direction of the sliding element (1) extending groove (21) is provided, in which at least one groove (21) Mounting element (3) protrudes at least with a fastener element section (3a). Device according to one of claims 1 to 4, characterized in that the underside (2) in their edge regions, to the side surfaces (1a, 1b) towards at least one extending in the longitudinal direction bevel (22) or in each case at least one fold, wherein the Fixing element (3) the underside (2) of the sliding element (1) at least in the region of the chamfers (22) or folds over the entire surface contacted or connected to this area. Device according to one of claims 1 to 5, characterized in that the fastening element (3) with the underside (3) is glued at least partially. Device according to one of claims 1 to 6, characterized in that on a fastening element (3) at least one rail (4) is fixed or that a fastening element (3) with the at least one rail (4) is integrally formed. Device according to one of claims 1 to 7, characterized in that the at least one rail (4) has a smaller width / transverse extent than the fastening element (3) or as the width of the underside of the sliding element. Device according to one of claims 1 to 8, characterized in that the rail (4) is mounted centrally in relation to the fastening element (3) on this or connected thereto. Device according to one of claims 1 to 9, characterized in that the roller device (10) below a floor top edge (FOK) is arranged or at the level of the upper floor edge (FOK) extends, preferably, wherein the upper edges (11 ") of the rollers (11 ) of the roller device (10) lie below the floor top edge (FOK), and wherein preferably the at least one rail (4) projects at least partially into the plate spacing. Device according to one of claims 1 to 10, characterized in that the roller device (10) has longitudinally extending lamellae (12), between which lamellae (12) the rollers (11) of the roller device (10) are arranged, wherein preferably the lamellae (12) are connected to each other by means of the slats (12) extending cross members (13), and wherein preferably the rollers do not project beyond the upper edge of the laminated assembly. Apparatus according to claim 11, characterized in that the at least one rail (4) protrudes at least partially into the blade intermediate space. Device according to one of claims 1 to 12, characterized in that the rollers (11) beveled running surfaces (11 ') on which rests the at least one rail (4) with its rail profile (4'), wherein preferably the rollers (11 ) have two beveled, tapered running surfaces (11 '). Device according to one of claims 1 to 13, characterized in that one or more sliding elements (1) as glass elements, with at least two or more, in particular three glass panes (1 a, 1 b, 1 c), is formed, are preferably the two side surfaces (1a, 1b) are formed by glass sheets, and wherein the at least one fastening element (3) the two side surfaces (1a, 1b) contacted on its underside or connected thereto. Apparatus according to claim 13 or 14, characterized in that in a triple or multiple glass glass element (1) the at least one intermediate disc (1c) protrudes less far down than the two outer discs (1a, 1b), and wherein the fastening element ( 3) with at least one section (3a) projects into the free space (21) formed between the two outer disks (1a, 1b).

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