DE202021102850U1 - Device for closing openings - Google Patents

Abstract

Device (1) for closing openings (2), in particular openings (2) in rail vehicles, comprising
- a closure element (3), in particular a roller shutter curtain, which has several articulated lamella profiles (4) which are connected to one another and which each extend along a longitudinal direction (18) from a first end edge (6a) to a second end edge (6b),
- mutually opposite guide rails (7), by means of which the closure element (3) can be moved from a closed position into an open position and guided back, and
- At least one sliding element (10) to support a guided movement of the closure element (3) between the closed position and the open position, which has at least one sliding element (10) on at least one of the end edges (6a, 6b) of at least one of the lamellar profiles (4 ) is arranged,
characterized in that
the at least one sliding element (10)
- At least one rolling element (11) for rolling on one of the guide rails (7) and
- comprises a sliding plate (12) for the rotatable mounting of the at least one rolling element (11),
wherein the at least one rolling element (11) has an axis of rotation (5) comprising a directional component, which directional component is normal to the respective longitudinal direction (18).

Description

FIELD OF THE INVENTION

• - ein Verschlusselement, insbesondere einen Rollladenpanzer, welches mehrere gelenkig miteinander verbundene Lamellenprofile aufweist, die sich jeweils entlang einer Längsrichtung von einer ersten Stirnkante zu einer zweiten Stirnkante erstrecken,
• - einander gegenüberliegende Führungsschienen, mittels welcher das Verschlusselement von einer geschlossenen Position in eine offene Position und zurück geführt bewegbar ist, und
• - zumindest ein Gleitelement zur Unterstützung einer geführten Bewegung des Verschlusselements zwischen der geschlossenen Position und der offenen Position, welches zumindest eine Gleitelement an zumindest einer der Stirnkanten von zumindest einem der Lamellenprofile angeordnet ist.

The invention relates to a device for closing openings, in particular openings in rail vehicles, comprising

• - a closure element, in particular a roller shutter curtain, which has several articulated lamellar profiles which each extend along a longitudinal direction from a first end edge to a second end edge,
• - mutually opposite guide rails, by means of which the closure element can be moved from a closed position into an open position and guided back, and
• - At least one sliding element for supporting a guided movement of the closure element between the closed position and the open position, which at least one sliding element is arranged on at least one of the end edges of at least one of the lamellar profiles.

STATE OF THE ART

Devices comprising a closure element with a plurality of lamellar profiles for closing openings, for example for closing cabinet furniture, a (shower) cubicle, a building or for darkening and / or protecting windows or balcony doors are widespread. The lamellar profiles of such devices are usually connected to one another in an articulated manner at their longitudinal edges and guided in guide rails at both ends at their front edges.

In most cases, in an operating state of the respective device, the lamellar profiles are oriented or arranged in such a way that their longitudinal directions run horizontally or vertically - i.e. normal or parallel to a direction of gravity.

Typically, the lamellar profiles have cylindrical pins on the front edges, which are arranged in the guide rails and serve to support or facilitate the (guided) movement of the closure element from a closed position to an open position and back along a guide path.

A disadvantage of these designs is that the closure element in the guide rails can be moved between the closed position and the open position with great difficulty, i.e. with an increased expenditure of force. This is particularly the case when the longitudinal directions of the lamellar profiles are parallel to the direction of gravity, since a large part of the weight is on or in the second guide rail as seen in the direction of gravity and this, together with the corresponding pins, shows severe signs of wear after a short time.

A further disadvantage of the devices known from the prior art is that, in the event of vibrations, the closure element or its lamellar profiles move in the guide rails transversely to the respective longitudinal direction and transversely to a tangent at the respective point of the guide path, the lamellar profiles being attached to the guide rails, in particular hit the side walls of the guide rails and cause rattling and / or undesirable or annoying noises.

OBJECT OF THE INVENTION

It is therefore an object of the present invention to provide a device for closing openings which overcomes the disadvantages of the prior art. A closure element of the device should be able to move smoothly between a closed position and an open position, even after prolonged use, in particular when longitudinal directions of lamellar profiles of the closure element are arranged essentially parallel to a direction of gravity. Furthermore, the device should not cause any disruptive noises even in the event of vibrations.

DISCLOSURE OF THE INVENTION

• - ein Verschlusselement, insbesondere einen Rollladenpanzer, welches mehrere gelenkig miteinander verbundene Lamellenprofile aufweist, die sich jeweils entlang einer Längsrichtung von einer ersten Stirnkante zu einer zweiten Stirnkante erstrecken,
• - einander gegenüberliegende Führungsschienen, mittels welcher das Verschlusselement von einer geschlossenen Position in eine offene Position und zurück geführt bewegbar ist, und
• - zumindest ein Gleitelement zur Unterstützung einer geführten Bewegung des Verschlusselements zwischen der geschlossenen Position und der offenen Position, welches zumindest eine Gleitelement an zumindest einer der Stirnkanten von zumindest einem der Lamellenprofile angeordnet ist, erfindungsgemäß dadurch gelöst, dass das zumindest eine Gleitelement
• - zumindest einen Wälzkörper zum Abrollen an einer der Führungsschienen und
• - eine Gleitplatte zur drehbaren Lagerung des zumindest einen Wälzkörpers umfasst,

wobei der zumindest eine Wälzkörper eine Drehachse umfassend eine Richtungskomponente aufweist, welche Richtungskomponente normal auf die jeweilige Längsrichtung ist.The object set at the beginning is comprised in a device for closing openings, in particular openings in rail vehicles

• - a closure element, in particular a roller shutter curtain, which has several articulated lamellar profiles which each extend along a longitudinal direction from a first end edge to a second end edge,
• - mutually opposite guide rails, by means of which the closure element can be moved from a closed position into an open position and guided back, and
• - At least one sliding element to support a guided movement of the closure element between the closed position and the open position, which at least one sliding element is arranged on at least one of the end edges of at least one of the lamellar profiles, solved according to the invention in that the at least one sliding element
• - at least one rolling element for rolling on one of the guide rails and
• - comprises a sliding plate for the rotatable mounting of the at least one rolling element,

wherein the at least one rolling element has an axis of rotation comprising a directional component, which directional component is normal to the respective longitudinal direction.

In summary, it can be stated that the device according to the invention has at least one sliding element comprising at least one rolling element and a sliding plate, the at least one sliding element rolling on one of the guide rails. The slide plate serves on the one hand for the rotatable mounting of the at least one rolling element and on the other hand prevents undesirable noises, since the slide plate and guide rail can preferably be precisely matched to one another, so that the lamellar profiles do not hit the guide rail, especially in the event of vibrations. That is, the closure element of the device according to the invention or its lamellar profiles move / move in the guide rails when there are vibrations, in particular in the guide rail on which the at least one sliding element rolls, not transversely to the respective longitudinal direction and not transversely to a tangent at the respective point of a guide path . As a result, the closure element or its lamellar profiles do not generate any undesired noises in the event of vibrations.

Because of the at least one rolling element that rolls within or on one of the guide rails, in particular on a base element of this guide rail, the closure element can be moved particularly smoothly between the closed position and the open position. Furthermore, due to the rolling element, the device according to the invention is less sensitive to contamination of the guide rails compared to the prior art.

From what has been said above, it follows that the closure element can be guided along the guide rails from the closed position into the open position and back.

The device according to the invention is particularly suitable for use in rail vehicles, in particular for covering bunk beds, due to its longevity and low noise level, both during movement between the open and closed position and in the closed and open position.

In order to achieve additional sound absorption, an interior of the slat profiles can be filled with a foam filling.

It is conceivable that the longitudinal directions of the lamellar profiles of the closure element of the device according to the invention are essentially parallel to a direction of gravity in an operating state. Accordingly, in this “gravity exemplary embodiment”, the longitudinal directions or the course of the two guide rails in the operating state are essentially transverse, in particular normal, to the direction of gravity. Thus, viewed in the direction of gravity, a first of the two guide rails is arranged in front of a second of the two guide rails. In this case, it is advantageous if the at least one sliding element rolls in the operating state in or on the second guide rail, viewed in the direction of gravity, in order to reduce or prevent signs of wear of the device according to the invention.

In order for the closure element to be particularly easy to move between the open position and the closed position, one embodiment of the invention provides that at least two sliding elements are provided, which are arranged opposite one another on the first end edge and the second end edge of at least one of the lamellar profiles. That is, one of the at least two sliding elements is arranged in or on one of the two guide rails and the other of the at least two sliding elements is arranged in or on the other of the two guide rails.

In the embodiment variant mentioned, it is advantageous that the opposing arrangement of the at least two sliding elements on the first and the second end edge further minimizes rattling and / or undesirable or annoying noises in the event of vibrations, since the freedom of movement of the at least one lamella profile which has a sliding element on each of the two end edges, particularly in the case of vibrations, is at least severely restricted transversely to the longitudinal direction.

In the above “gravity exemplary embodiment”, one of the at least two sliding elements would be arranged in or on the first guide rail, viewed in the direction of gravity, and the other of the at least two sliding elements, viewed in the direction of gravity, would be arranged in or on the second guide rail. In particular, the arrangement of at least one sliding element in the second guide rail is advantageous with regard to the smooth movability of the closure element, since it rolls well in or on the second guide rail due to the rolling element, although a large part of the weight of the closure element is on the at least one sliding element, in particular on the at least one rolling element weighs.

It is conceivable that that of the at least two sliding elements which is arranged in the first guide rail as viewed in the direction of gravity has a sliding body which is formed by the sliding plate. In this variant, this sliding body does not include a rolling body, but is also preferably matched to the first guide rail with a precise fit, as a result of which undesired noises due to vibrations are also minimized in this variant. Furthermore, the ease of movement is only adversely affected to a limited extent, since, as described above, the majority of the weight of the closure element rests on the at least one sliding element arranged in the second guide rail. Due to the lack of the rolling element, the sliding element is cheaper and easier to manufacture.

In order to ensure inexpensive and simple production and simple assembly of the lamellar profiles, it is provided in one embodiment of the invention that the lamellar profiles are connected to one another in a form-fitting articulated manner.

The articulated connection of the lamellar profiles enables particularly flexible use of the closure element. For example, due to the articulated connection of the lamellar profiles with one another, the closure element can be moved along different geometries, in particular along different curvatures, of the guide rails.

In a particularly preferred embodiment of the invention it is provided that for the form-fitting connection of two directly adjacent slat profiles, the slat profiles each have at least one receiving element in the area of a first longitudinal edge and at least one connecting element corresponding to the receiving element in the area of an opposite second longitudinal edge.

Each lamellar profile thus comprises a connecting element along one longitudinal edge and a receiving element along a second longitudinal edge. The connecting element of a slat profile can be inserted into the receiving element of a directly adjacent slat profile in such a way that a form-fitting and at the same time articulated connection is created between these two slat profiles. This means that the connecting element and the receiving element interlock, which means that the two lamellar profiles cannot come loose even with no or interrupted power transmission.

It is conceivable that the connecting element and the receiving element have corresponding cylinder surfaces which are arranged coaxially when the articulated connection is established. As a result, a form fit exists or acts in practically all directions in the plane perpendicular to the cylinder axis.

In a particularly preferred embodiment of the invention it is provided that the at least one receiving element and the at least one connecting element are arranged in the region of at least one of the front edges of the respective lamella profile and that at least one sleeve is provided for the form-fitting connection of the two directly adjacent lamella profiles, which is in the at least one receiving element of the one of the two lamellar profiles is arranged, wherein the connecting element of the other of the two lamellar profiles is arranged in the at least one sleeve.

It is conceivable that the at least one sleeve is positively arranged in the at least one receiving element of the one of the two lamellar profiles and / or the connecting element of the other of the two lamellar profiles is arranged positively in the at least one sleeve.

In order to secure the connection between two directly adjacent lamellar profiles, a further embodiment of the invention provides that the sliding plate of the at least one sliding element has an end region which corresponds to an end section of the at least one sleeve, so that when the sliding element is fixed to one of the lamellar profiles , the end region of the sliding plate can be brought into positive engagement with the end section of the at least one sleeve of this lamellar profile in order to fix the sleeve in the lamellar profile. This fixation ensures that that lamellar profile, which the sleeve has in at least one receiving element, and that directly adjacent lamellar profile, whose connecting element is arranged in the sleeve, can only move to a very limited extent, in particular not at all, in the longitudinal direction relative to one another.

If a sliding element is also arranged or fixed on the front edge opposite the front edge having the sliding element, then these two directly adjacent lamellar profiles can only move to a very limited extent parallel to the longitudinal direction, in particular not at all.

In order to secure the connection between three directly adjacent lamellar profiles, a further variant of the invention provides that the sliding plate of the at least one sliding element has a first end region and an opposite second end region, the end regions having a shape that corresponds to end sections of the sleeves , so that when the sliding element is fixed to one of the Slat profiles the end regions of the sliding plate with the end sections of the sleeves of this slat profile and a directly adjacent slat profile can be brought into positive engagement in order to fix the sleeves in the slat profiles.

• - jenes (erste) Lamellenprofil, welches eine Hülse im zumindest einen Aufnahmeelement aufweist, und jenes (zweite) zum ersten Lamellenprofil direkt benachbarte Lamellenprofil, dessen Verbindungselement in dieser Hülse angeordnet ist, durch den ersten Endbereich fixiert werden und
• - jenes (dritte) zum ersten Lamellenprofil direkt benachbarte Lamellenprofil, welches eine Hülse im zumindest einen Aufnahmeelement aufweist, und das erste Lamellenprofil, dessen Verbindungselement in dieser Hülse angeordnet ist, durch den zweiten Endbereich fixiert werden.

This ensures that three directly adjacent slat profiles can only move to a very limited extent in the longitudinal direction relative to one another, in particular not at all. This is because

• That (first) lamellar profile, which has a sleeve in at least one receiving element, and that (second) lamellar profile directly adjacent to the first lamellar profile, the connecting element of which is arranged in this sleeve, are fixed by the first end region and
• That (third) lamellar profile directly adjacent to the first lamellar profile, which has a sleeve in at least one receiving element, and the first lamellar profile, the connecting element of which is arranged in this sleeve, are fixed by the second end region.

If a sliding element with two end regions is also arranged or fixed on the end edges opposite the end edges having the sliding element, then these three directly adjacent or successive lamellar profiles can only move to a very limited extent parallel to the longitudinal direction, in particular not at all .

In order to establish a simple and secure connection between the at least one sliding element and the slat profiles, a further embodiment of the invention provides that the at least one sliding element is releasably fixed to one of the slat profiles by means of at least one connecting screw. This ensures easy assembly and disassembly. Furthermore, the thread type and strength class of the connecting screw can be easily adapted to the size or weight of the device according to the invention, in particular to the weight of the closure element.

In order to minimize unwanted noises of the device according to the invention, in particular in the event of vibrations, in particular both in the closed position and in the open position, a further embodiment of the invention provides that the at least one sliding element has at least one spring element to generate a contact pressure to the respective guide rail, in particular to a side wall of the respective guide rail. In particular, the at least one spring element produces and / or increases a contact pressure on the side walls of the guide rail.

It is conceivable that the at least one sliding plate has the at least one spring element. The at least one spring element is preferably arranged along a longitudinal edge of the sliding plate. The at least one spring element particularly preferably extends from the first end region of the sliding plate into the second end region of the sliding plate.

A closing and opening force for closing and opening the closing element is dependent in particular on a coefficient of rolling friction of the rolling element and on a pretensioning of the at least one spring element. That is, by setting / changing, in particular reducing, the coefficient of rolling friction of the rolling element and setting / changing the preload of the at least one spring element, the closing and opening force required for closing and opening the closing element can be influenced.

In addition, the at least one spring element can serve as tolerance compensation. For example, any inaccuracies in the manufacture of the respective guide rail can be compensated for by the at least one spring element.

In order to produce the device according to the invention, in particular the at least one rolling element and the sliding plate, by means of a fully automated process and with high reproducibility, a further variant of the invention provides that the at least one rolling element and / or the sliding plate is produced by injection molding. As a result, the at least one rolling element and the sliding plate can also be produced particularly economically, since these parts do not need to be reworked or only slightly. The surface structure can also be precisely adapted.

Materials with good sliding properties, for example polyamide materials, are generally suitable as materials for the at least one sliding element, in particular for the at least one rolling element and / or the at least one sliding plate. Theoretically, coatings or surface treatments that improve the sliding properties would also be possible as an alternative or in addition.

The lamellar profiles can be manufactured using an extrusion process, making them economical to manufacture.

Figure list

The invention will now be explained in more detail using an exemplary embodiment. The drawings are exemplary and are intended to explain the concept of the invention, but in no way restrict it or reproduce it conclusively.

• 1 eine axonometrische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung;
• 2 eine axonometrische Detaildarstellung der Gleitelemente der erfindungsgemäßen Vorrichtung;
• 3 eine Art Explosionsdarstellung eines Gleitelements samt Verbindungssystem und Lamellenprofilen aus 2;
• 4 eine Seitenansicht der erfindungsgemäßen Vorrichtung.

It shows:

• 1 an axonometric representation of an embodiment of a device according to the invention;
• 2 an axonometric detailed representation of the sliding elements of the device according to the invention;
• 3 a kind of exploded view of a sliding element including a connection system and lamellar profiles 2 ;
• 4th a side view of the device according to the invention.

WAYS OF CARRYING OUT THE INVENTION

1 shows an axonometric representation of an embodiment of a device according to the invention 1 to close openings 2 , the device according to the invention 1 a closure element 3 and two guide rails 7th includes. The closure element 3 has several slat profiles 4th on, their longitudinal directions 18th in the illustrated embodiment parallel to a direction of gravity 13th are. The slat profiles 4th extend in their respective longitudinal direction 18th from a first front edge 6a to a second front edge 6b .

The two guide rails 7th in turn run along a guide path transversely to the direction of gravity 13th , being in the direction of gravity 13th seen a first guide rail 7a of the two guide rails 7th in front of a second guide rail 7b of the two guide rails 7th is arranged.

In the second guide rail 7b are several sliding elements 10 arranged, where 2 an axonometric detailed representation of the sliding elements 10 the device according to the invention 1 represents. The sliding elements 10 are on the second front edges 6b the slat profiles 4th arranged. Every sliding element 10 comprises a rolling element in this exemplary embodiment 11 as well as a sliding plate 12th , the sliding plate 12th the rotatable mounting of the rolling element 11 serves and fits precisely on the second guide rail 7b is matched, the sliding plate 12th is designed so that it is in or on the guide rails 7th , especially in or on the guide rail 7b , can slide.

Furthermore, in this exemplary embodiment, each sliding element 10 a spring element 14th on, by means of which a contact pressure against side walls of the second guide rail 7b is generated or increased. In addition, the device according to the invention comprises 1 in the illustrated embodiment by sliding plates 12th trained sliding body (not shown), which in the first guide rail 7a are arranged and no rolling elements 11 have, since there is no support for the weight of the slat profiles 4th is required. The sliding bodies therefore only have a sliding plate 12th which also fit precisely onto the first guide rail 7a , in particular on a receiving space of the first guide rail 7a , are trained. Of course, spring elements can also be used 14th with the sliding plates 12th the sliding body be provided. Due to the precise coordination of the sliding plates 12th the sliding elements 10 and the sliding plates 12th the sliding body as well as due to the spring elements 14th unwanted noises are largely prevented, as the slat profiles 4th even with vibrations not across the guide path and to the respective longitudinal direction 18th move.

The rolling elements 11 each include an axis of rotation 5 , which in this exemplary embodiment are normal to the respective longitudinal direction 18th or to the direction of gravity 13th is - see 3 and 4th , in which 3 a kind of exploded view of a sliding element 10 including connection system and slat profiles 4th out 2 shows and 4th a side view of the device according to the invention 1 represents. The rolling elements 11 roll inside the second guide rail 7b on a floor area 19th and thereby ensure a smooth movement between an open position and a closed position of the closure element 3 although much of the weight of the closure element 3 on the rolling elements 11 burdens.

In this embodiment, both the rolling elements 11 as well as the sliding plates 12th manufactured by injection molding. Of course, this does not exclude the possibility that the corresponding elements can be produced using another method.

The slat profiles 4th are positively hinged to one another. Every slat profile 4th comprises for this purpose a receiving element along a first longitudinal edge 15th and a connecting element along a second longitudinal edge 16 . This is in 3 visible, with the fasteners 16 and the receiving elements 15th Have cylindrical surfaces which are arranged coaxially to one another in established articulated connections. The connecting element 16 a slat profile 4th is in the receiving element 15th of a directly adjacent slat profile 4th introduced to these two slat profiles 4th to connect positively and articulated with each other.

The device according to the invention also comprises several connection systems 17th to connect the sliding elements 10 with the slat profiles 4th , each connection system 17th two pods 8th and two connecting screws 9 having. The connection systems 17th are for the form-fitting connection of directly adjacent slat profiles 4th intended. For this purpose, a sleeve is used in each case in this exemplary embodiment 8th in each receiving element 15th the slat profiles 4th arranged, each with a corresponding connecting element 16 in the respective sleeve 8th is arranged.

Any sliding plate 12th the sliding elements 10 has a first end region 20a and an opposite second end region 20b on, with the end regions 20a , 20b have a shape leading to end portions 21 of the pods 8th corresponds. Every sliding element 10 is made by means of the two connecting screws 9 detachable on one of the slat profiles 4th fixed. By fixing the end areas 20a , 20b the sliding plate 12th with the end sections 21 of the pods 8th this slat profile 4th and a directly adjacent lamella profile 4th positively engaged to the sleeves 8th in the slat profiles 4th to fix. By this fixation and by acting as sliding plates 12th formed sliding body is the connection between three directly adjacent or successive lamella profiles 4th secured, with a relative movement of the lamellar profiles to each other parallel to the longitudinal direction 18th is prevented.

List of reference symbols

1

Device for closing

2

opening

3

Closure element

4th

Lamellar profile

5

Axis of rotation

6a

first front edge

6b

second front edge

7th

Guide rail

7a

first guide rail

7b

second guide rail

8th

Sleeve

9

Connecting screw

10

Sliding element

11

Rolling elements

12th

Sliding plate

13th

Direction of gravity

14th

Spring element

15th

Receiving element

16

Connecting element

17th

Connection system

18th

Longitudinal direction

19th

Floor area

20a

first end area

20b

second end area

21

End portion of the sleeve

Claims (10)

Device (1) for closing openings (2), in particular openings (2) in rail vehicles, comprising - a closing element (3), in particular a roller shutter curtain, which has several articulated slat profiles (4) which each extend along a longitudinal direction (18) extend from a first end edge (6a) to a second end edge (6b), - mutually opposite guide rails (7), by means of which the closure element (3) can be moved from a closed position to an open position and back, and - at least one sliding element (10) to support a guided movement of the closure element (3) between the closed position and the open position, which has at least one sliding element (10) on at least one of the end edges (6a, 6b) of at least one of the lamellar profiles (4) is arranged, characterized in that the at least one sliding element (10) - at least one rolling element (11) for rolling a n one of the guide rails (7) and - comprises a sliding plate (12) for the rotatable mounting of the at least one rolling element (11), the at least one rolling element (11) having an axis of rotation (5) comprising a directional component, which directional component is normal to the respective Longitudinal direction (18). Device (1) according to Claim 1 , characterized in that at least two sliding elements (10) are provided, which are arranged opposite one another on the first end edge (6a) and the second end edge (6b) of at least one of the lamellar profiles (4). Device (1) according to one of the Claims 1 to 2 , characterized in that the lamellar profiles (4) are positively hinged to one another. Device (1) according to Claim 3 , characterized in that for the positive connection of two directly adjacent slat profiles (4) the slat profiles (4) each in the area of a first longitudinal edge at least one receiving element (15) and in the area of an opposite second longitudinal edge at least one connecting element corresponding to the receiving element (15) ( 16). Device (1) according to Claim 4 , characterized in that the at least one receiving element (15) and the at least one connecting element (16) are arranged in the region of at least one of the end edges (6a, 6b) of the respective lamella profile (4) and that for the positive connection of the two directly adjacent lamella profiles (4) at least one sleeve (8) is provided, which is arranged in at least one receiving element (15) of one of the two lamellar profiles (4), the connecting element (16) of the other of the two lamellar profiles (4) in the at least one sleeve (8) is arranged. Device (1) according to Claim 5 , characterized in that the sliding plate (12) of the at least one sliding element (10) has an end region (20a, 20b) which corresponds to an end section (21) of the at least one sleeve (8), so that when the sliding element (10) is fixed on one of the lamellar profiles (4) the end region (20a, 20b) of the sliding plate (12) can be brought into positive engagement with the end section (21) of the at least one sleeve (8) of this lamellar profile (4) in order to put the sleeve (8) in to fix the lamellar profile (4). Device (1) according to Claim 5 or Claim 6 , characterized in that the sliding plate (12) of the at least one sliding element (10) has a first end region (20a) and an opposite second end region (20b), the end regions (20a, 20b) having a shape that leads to end sections (21 ) of the sleeves (8) corresponds, so that when the sliding element (10) is fixed on one of the lamellar profiles (4), the end regions (20a, 20b) of the sliding plate (12) with the end sections (21) of the sleeves (8) of this lamellar profile (4 ) and a directly adjacent lamellar profile (4) can be brought into positive engagement in order to fix the sleeves (8) in the lamellar profiles (4). Device (1) according to one of the Claims 1 to 7th , characterized in that the at least one sliding element (10) is detachably fixed to one of the lamellar profiles (4) by means of at least one connecting screw (9). Device (1) according to one of the Claims 1 to 8th , characterized in that the at least one sliding element (10) has at least one spring element (14) in order to produce a contact pressure on the respective guide rail (7), in particular on a side wall of the respective guide rail (7). Device (1) according to one of the Claims 1 to 9 , characterized in that the at least one rolling element (11) and / or the sliding plate (12) is manufactured by means of injection molding.

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