EP4071328B1 - Sliding wall assembly with covering element - Google Patents

Description

The present invention relates to a sliding wall arrangement according to the preamble of claim 1.

Such sliding wall arrangements - also called sliding doors or sliding windows - can be manufactured without thresholds and with a comparatively small frame portion. The alignment is usually such that the sliding sash moves horizontally. Due to the preferred recessing of the lower guide rail in the floor, a profile-free transition of the sliding sash to the floor is possible. This results in maximum light opening. The sliding sashes are usually provided with multi-pane thermal insulation glazing and usually have a circumferential profile.

Good thermal insulation and sound insulation are essential for such sliding wall arrangements. The guide rails of such sliding wall arrangements are therefore usually made of at least two profiles, for example aluminum profiles, which are firmly connected to one another using heat-insulating connecting elements. The separation by such connecting elements, which are usually made of plastic, enables an effective thermal separation of the two profiles, in each of which a sliding sash is guided. With recessed guide rails, effective drainage is also essential.

Such sliding wall arrangements are increasingly being made with thicker sliding panels, which are intended to provide even better heat and sound insulation. The guide channels must therefore be made wider so that these wider sliding wall arrangements can be sunk into them. However, such wide guide channels are rather undesirable, particularly from an aesthetic point of view. It is also possible that such wide guide channels are unsuitable when wearing shoes with narrow heels. There are also country-specific standards for construction that are suitable for people with disabilities, which limit the dimensions of thresholds and floor openings.

The state of the art allows this, for example, through the generic EN 20 2017 007 036 U1 a sliding wall arrangement with a movable cover element The cover element can be lowered into the guide rail and raised from it using a parallelogram mechanism. When raised, the cover element covers an opening in the guide rail; when lowered, a sliding wing of the sliding wall arrangement can slide over the cover element.

This sliding wall arrangement has proven to be very effective in practice, but it also has disadvantages. One of these disadvantages is the relatively large distance between the cover element and the sliding wing of the sliding wall arrangement when the cover element is raised.

Furthermore, the parallelogram mechanism of the cover element only works from one side. This means that in a sliding wall arrangement with three sliding panels, one sliding panel could only be moved in one direction, since the lowering element - due to the spring mechanism - can only be lowered in one direction, so there is a need for further optimization here.

Accordingly, the object of the present invention is to provide a sliding wall arrangement with a cover element which at least partially overcomes these disadvantages.

This object is achieved with a sliding wall arrangement according to claim 1, which has at least one sliding wing with a lower frame profile, a guide rail which can be lowered into a building floor and in which the at least one sliding wing is slidably mounted at the lower edge, and at least one cover element which serves to cover the at least one guide rail when the guide rail is released by the at least one displaceable sliding wing, wherein the at least one cover element has a raised state in which the cover element partially covers the guide rail released by the sliding wing, and a lowered state in which the at least one cover element is lowered into the at least one guide rail so that the at least one sliding wing can be moved over the at least one cover element, wherein a guide device is provided which ensures that the at least one cover element carries out a vertical or substantially vertical movement between the raised state and the lowered state or vice versa.

This creates a sliding wall arrangement with a cover element, in which the cover element advantageously moves independently of the sliding direction of a Sliding wing of the sliding wall arrangement can be lowered. Furthermore, the lowering mechanism according to the invention advantageously requires only a small installation space parallel to the sliding direction of the sliding wing, so that movement of the cover element during the vertical or essentially vertical movement parallel to the sliding direction of the sliding wing is limited to a minimum.

It is further provided that the base rail has a slotted guide as the guide device, wherein the cover element is guided by the slotted guide during its vertical or essentially vertical movement. This results in a robust guide for the cover element that is simple to implement in terms of construction and production technology.

It is also provided that the guide pin passes through a slot-like guide groove that is incorporated into a guide block. This results in a structurally simple and space-saving and therefore advantageous guide for the movement of the cover element.

It is further provided that the guide groove is designed in the form of a U rotated by 180°, so that the movement of the guide pin in the guide groove is vertical at least in sections. This further optimizes the structurally simple and space-saving guidance of the movement of the cover element.

In one embodiment of the invention, it can be provided that the U-shaped guide groove has a recess in the apex or turning point of the U, into which the guide pin engages in its upper end position, so that the guide pin assumes a defined upper end position. This results in a stable equilibrium state of the guide pin and thus of the cover element in its upper end position, which is structurally simple and therefore advantageous.

Furthermore, in a further embodiment of the invention, it can be provided that the guide pin is held by one or more, in particular two, holding elements to which the guide pin is screwed and the holding elements are each attached externally to inner webs of the cover element. This results in good guidance of the guide pin in a structurally simple and therefore advantageous manner.

According to a further embodiment of the invention, it can be provided that a guide rail is inserted into the base rail and the guide rail is connected to the base rail via insulating webs. This makes the base rail structurally simple and thus advantageously insulated from the running rail.

A further variant of the invention provides that the insulating webs form a T-shaped cross-sectional geometry with which they engage in corresponding grooves in the guide rail. This results in an advantageously simple installation of the guide rail in the base rail.

In a further embodiment of the invention, it can be provided that the guide rail is designed symmetrically or essentially symmetrically and has two outer webs arranged symmetrically to one another and two inner webs also arranged symmetrically to one another. The symmetrical design results in a guide rail that is advantageously easy to manufacture.

According to a further embodiment of the invention, a guide roller can be arranged so that it can rotate between an outer web and an inner web, so that the guide rollers are arranged in pairs. This results in simple assembly and robust mounting of the guide rollers.

According to a variant, it can further be advantageously provided that the cover element has a cross-sectional geometry in the form of a U rotated by 180°. This results in a cover element that is easy to manufacture and yet sufficiently stable in operation because it is sufficiently rigid.

A further variant of the invention provides that the clear width of the cover element is dimensioned such that the cover element, in its lowered state, overlaps the two outer webs of the guide rail with its two legs. This advantageously results in a compact structure of the base rail.

In a further embodiment of the invention, it can be provided that the cover element has one or more, in particular two, inner webs, between which a bearing bolt is arranged, which is fastened to the inner webs. This results in a simple and robust fastening of the bearing bolt.

In a further embodiment of the invention, it can be provided that the cover element is penetrated by the guide rollers in the lowered state and that the cover element has corresponding openings through which the guide rollers pass.

It can preferably also be provided that at least one spring mechanism with at least one spring is provided in the guide rail for raising and lowering the respective cover element. The respective spring mechanism enables the cover element to be moved in a simple manner by means of an energy storage device, e.g. a spring.

It can also preferably be provided that for each spring mechanism, two carriages are arranged in pairs in the guide rail and guided in a translational manner, in particular between the inner webs. This results in a structurally simple guidance of the spring of the spring mechanism.

In a further embodiment of the invention, it can be provided that the spring mechanism has a spring that is designed as a leaf spring, in particular as an angled leaf spring that is supported in an articulated manner centrally on the bearing bolt. The leaf spring is a spring that is structurally simple and can be manufactured with little effort and that, due to its geometry, supports a vertical or essentially vertical movement of the cover element.

In a further variant of the invention, it can advantageously be provided that the spring is designed symmetrically and has a left and a right angled leg. The symmetry of the spring ensures, in a simple and advantageous way, that the spring does not have a preferred direction of movement parallel to a direction of displacement of the sliding sash.

In a further variant of the invention, it can be provided that the respective carriage has one or more, in particular four, rollers that are rotatably mounted. This advantageously results in a low-friction movement of the carriage and thus of the spring in a direction of movement parallel to the direction of displacement of the sliding sash.

It can advantageously be provided that several of the cover elements are offset from one another in the main extension direction of the guide rail and/or several of the spring mechanisms and/or several of the link guides are distributed in the guide rail.

Further advantageous embodiments of the invention can be found in the subclaims.

Figur 1:

in a) eine Schnittdarstellung einer Basisschiene einer Ausführungsform der erfindungsgemäßen Schiebewandanordnung mit Abdeckelement und Federmechanik, wobei das Abdeckelement in einem angehobenen Zustand dargestellt ist, in b) eine Schnittdarstellung der Laufschiene nach Fig. 1a, wobei das Abdeckelement in einem abgesenkten Zustand dargestellt ist;

Figur 2:

in a) eine Explosionszeichnung einer Federmechanik einer Ausführungsform, in b) eine Draufsicht der vormontierten Federmechanik aus Fig. 2a in c) eine Vorderansicht der Federmechanik aus Fig. 2a, montiert in die Laufschiene nach Fig. 1a und 1b mit Abdeckelement, in d) eine Draufsicht der Anordnung nach Fig. 2c;

Figur 3:

in a) eine Vorderansicht der Federmechanik aus Fig. 2a bis d in einem ausgefederten Zustand, in b) eine Draufsicht der Federmechanik aus Fig. 3a, in c) eine Seitenansicht der Federmechanik aus Fig. 3a;

Figur 4:

in a) eine Vorderansicht der Federmechanik aus Fig. 2a bis d in einem eingefederten Zustand, in b) eine Draufsicht der Federmechanik aus Fig. 4a, in c) eine Seitenansicht der Federmechanik aus Fig. 4a;

Figur 5:

in a) eine Schnittdarstellung einer Laufschiene einer Ausführungsform der erfindungsgemäßen Schiebewandanordnung mit Abdeckelement und einer Kulissenführung für das Abdeckelement, wobei das Abdeckelement in einem absenken Zustand dargestellt ist, in b) eine Schnittdarstellung einer Laufschiene nach Fig. 5a, wobei das Abdeckelement in einem angehobenen Zustand dargestellt ist;

Figur 6:

in a) eine Vorderansicht der Kulissenführung mit einem Führungsbolzen in seiner oberen Endlage, in b) eine Seitenansicht der Kulissenführung nach Fig. 6a;

Figur 7:

in a) eine Vorderansicht der Kulissenführung mit einem Führungsbolzen in einer linken unteren Endlage und einem Führungsbolzen in einer rechten unteren Endlage, in b) eine Seitenansicht der Kulissenführung nach Fig. 7a;

Figur 8:

eine Vorderansicht einer Laufschiene mit einem Abdeckelement in einem angehobenen Zustand sowie mehreren Federmechanismen und mehreren Kulissenführungen;

Figur 9:

in a) eine Vorderansicht einer Laufschiene mit einem Abdeckelement in einem abgesenkten Zustand sowie mehreren Federmechanismen und mehreren Kulissenführungen, jeweils mit dem Führungsbolzen in einer rechten unteren Endlage, in b) eine Vorderansicht einer Laufschiene mit einem Abdeckelement in einem abgesenkten Zustand sowie mehreren Federmechanismen und mehreren Kulissenführungen, jeweils mit dem Führungsbolzen in einer linken unteren Endlage;

Figur 10:

in a) bis o) jeweils eine Vorderansicht einer Laufschiene mit einem Abdeckelement, dass von seinem angehobenen Zustand sukzessive in seinen abgesenkten Zustand bewegt wird.

Figur 11:

eine schematische Darstellung einer Schiebewandanordnung mit einem Abdeckelement nach dem Stand der Technik.

The invention is described in more detail below using some preferred embodiments with reference to the figures. However, the figures are to be understood as examples only and do not illustrate the invention in a conclusive manner. Other literal embodiments and equivalents of the embodiments shown also fall within the scope of protection, provided they fall within the scope of protection of the appended claims. They show:

Figure 1:

in a) a sectional view of a base rail of an embodiment of the sliding wall arrangement according to the invention with cover element and spring mechanism, wherein the cover element is shown in a raised state, in b) a sectional view of the guide rail according to Fig. 1a , wherein the cover element is shown in a lowered state;

Figure 2:

in a) an exploded view of a spring mechanism of one embodiment, in b) a plan view of the pre-assembled spring mechanism of Fig. 2a in c) a front view of the spring mechanism from Fig. 2a , mounted in the guide rail according to Fig. 1a and 1b with cover element, in d) a plan view of the arrangement according to Fig. 2c ;

Figure 3:

in a) a front view of the spring mechanism from Fig. 2a to d in a rebound state, in b) a top view of the spring mechanism from Fig. 3a , in c) a side view of the spring mechanism from Fig. 3a ;

Figure 4:

in a) a front view of the spring mechanism from Fig. 2a to d in a compressed state, in b) a top view of the spring mechanism from Fig. 4a , in c) a side view of the spring mechanism from Fig. 4a ;

Figure 5:

in a) a sectional view of a guide rail of an embodiment of the sliding wall arrangement according to the invention with a cover element and a guide rail for the cover element, wherein the cover element is shown in a lowered state, in b) a sectional view of a guide rail after Fig. 5a , wherein the cover element is shown in a raised state;

Figure 6:

in a) a front view of the guide rail with a guide pin in its upper end position, in b) a side view of the guide rail after Fig. 6a ;

Figure 7:

in a) a front view of the link guide with a guide pin in a left lower end position and a guide pin in a right lower end position, in b) a side view of the link guide after Fig. 7a ;

Figure 8:

a front view of a guide rail with a cover element in a raised state as well as several spring mechanisms and several guide rails;

Figure 9:

in a) a front view of a guide rail with a cover element in a lowered state as well as several spring mechanisms and several link guides, each with the guide bolt in a right lower end position, in b) a front view of a guide rail with a cover element in a lowered state as well as several spring mechanisms and several link guides, each with the guide bolt in a left lower end position;

Figure 10:

in a) to o) each show a front view of a guide rail with a cover element that is successively moved from its raised state to its lowered state.

Figure 11:

a schematic representation of a sliding wall arrangement with a cover element according to the prior art.

The terms used below such as "top", "bottom", "right", "left", "side", "vertical", "horizontal" refer to the respective drawing plane.

Fig. 11 shows a schematic representation of a sliding wing 2 of a sliding wall arrangement with a cover element 5 according to the prior art.

The sliding sash 2 is guided in a base rail 3. This has rollers 4 for this purpose. The base rail 3 can be inserted into a guide rail 1 or formed integrally with it. The cover element 5 can be brought into a raised state and a lowered state. In the raised state, the cover element 5 covers a guide channel 11 or 12 above the base rail 3. but within the guide rail 1, which would otherwise be exposed. In order to enable the sliding sash 2 to be moved over the cover element 5, the latter is brought into the lowered state. The guide channel 12 is then covered by the sliding sash 2.

A spring mechanism with one or more leg springs 6 is arranged in the area of the base rail 3. The spring mechanism applies a spring force to the cover element 5, which presses the cover element 5 in the direction of its raised state. The one or more leg springs 6 each have two upper legs 61, the end regions of which each rest against a transverse axis 56 and are bent around it.

Due to the spring force of the at least one leg spring 6, the cover element 5 is brought into its raised state and held in this. When the sliding wing 2 is pushed over the cover element 5, the cover element 5 is pressed into the lowered state against the spring force by the weight of the sliding wing 2, which is transmitted by rollers 28, and is held in this state. By rolling the rollers 28 on a main section 51 of the cover element 5, the mutual friction between the sliding wing 2 and the cover element 5 is minimized when the sliding wing 2 is moved.

In the area of the base rail 3, support blocks 7 are also arranged, which are movably connected on the one hand to the cover element 5 and on the other hand to the base rail 3. The connection to the cover element 5 is made via a transverse axis 50, which extends through the support block 7 and about which the support block 7 can rotate freely. The connection to the base rail 3 is made via a transverse axis 37, which extends in the base rail 3 and about which the support block 7 can also rotate freely. The support block 7 therefore has two axle holes for the two transverse axes 50 and 37.

When the sliding sash 2 is moved, the cover element 5 is pressed horizontally along the longitudinal direction of the running and base rail 1, 3 and downwards into the guide channel 11, 12 by the sliding sash 2 stopping at an end facing in the longitudinal direction of the guide rail 1, against the spring force caused by the leg spring 6. The upper legs 61 approach the lower legs 62 of the leg spring 6. At the same time, the support blocks 7 tilt by approx. 90°, with the rolling surfaces 72 rolling on the main section 31 of the base rail 3. The lowering of the cover element 5 is as far as possible up to the shoulders 71 of the support blocks. 7 on the underside of the main section 51 of the cover element 5. The weight of the sliding wing 2 holds the cover element 5 in the lowered state against the spring force. The cover element 5 is then located below the lower edge of the sliding wing 2 and completely within the guide channel 11, 12 of the guide rail 1.

Due to the support blocks 7, the cover element 5 moves from the lowered to the raised state and vice versa in a guided parallel displacement. This ensures in particular that the cover element 5 is always arranged parallel to the guide rail 1 or to a floor surface B. Furthermore, the support blocks 7 allow the cover element 5 to be subjected to a high load when the cover element 5 is raised.

In order to lower the cover element 5 in a continuous, uniform movement when the sliding sash 2 is moved, a wedge 29 can be attached to the lower area of one or both of the front surfaces of the sliding sash 2 facing in the direction of movement. A freely rotatable roller 55 can also be attached to the end of the cover element 5, which rolls on a lower inclined surface of the wedge 29 when the sliding sash 2 is moved. Due to the wedge 29, the force exerted by the sliding sash 2 on the cover element 5 has both a horizontal and a vertical, downward force component.

During the transition from the raised to the lowered state, the cover element 5 is moved over a certain distance along the longitudinal extension of the guide rail 1 due to the tilting movement of the support blocks 7. In order to take this circumstance into account, in particular in the case of several cover elements 5 arranged one behind the other, the outer webs 52 in the end regions of the cover elements 5 can each have a rounding 58.

This results in the problem that a certain area of the guide rail 1 cannot be covered by a cover element 5, since a cover element-free area must be reserved in the area of the guide rail 1, into which a cover element 5 adjacent to a wall reveal must move during its pivoting movement when it is brought into the lowered state by the sliding sash. Alternatively, the guide rail 1 must extend further into the wall in the area of the wall reveal, which means increased effort.

Furthermore, the parallelogram mechanism of the cover element 5 only works from one side. This means that in a sliding wall arrangement with three sliding panels, a Sliding sashes can only be moved in one direction because the lowering element can only be lowered in one direction due to the spring mechanism.

The invention solves these problems in an advantageous manner, which is described below using a preferred embodiment of the invention. The invention is not limited to this embodiment. In addition, the features disclosed below can also be combined differently in the sense of the claims than shown below.

In Fig. 1a a guide rail 300 with a cover element 500 is shown in a raised state. Here, a single guide rail 300 is shown for a single movable sliding leaf 200 of the sliding door. There can also be two or more guide rails 300, which can then be combined in one piece to form a component. This is particularly the case when there is more than one movable sliding leaf 200.

The guide rail 300 can be installed recessed into a building floor.

The at least one guide rail 300 can have one or more hollow chambers 301 in the area of a base web. The guide rail 300 has a substantially U-shaped cross-sectional geometry. A respective leg 302a, b of the guide rail 300 has an upper groove 303a, b and a lower groove 304a, b at its free end. A seal 305a, b, which can be designed as a brush seal, is inserted into the upper grooves 303a, b. An elastic seal 306a, b is inserted into the lower grooves 304a, b. The guide rail 300 can be made from a light metal, particularly preferably from aluminum.

A base rail 307 is inserted into the guide rail 300. The base rail 307 is connected to the guide rail 300 via insulating webs 308a, b. For this purpose, the insulating webs 308a, b form a T-shaped cross-sectional geometry with which they engage in corresponding grooves 309a, b in the base rail 307. The insulating webs 308a, b are made of a plastic material with good heat insulation.

The base rail 307 is designed symmetrically or essentially symmetrically and accordingly has at least two, here exactly two, outer webs 310a, b arranged symmetrically to one another and at least two, here exactly two, inner webs 311a, b arranged symmetrically to one another. Between each outer web 310a, b and each inner web 311a, b there is a guide roller 312a, b. rotatably mounted so that the guide rollers 312a, b are arranged in pairs. An axis 313a, b for mounting the respective guide roller 312a, b can be designed as a shoulder screw.

A spring mechanism 600 is arranged in sections multiple times - here twice - in the guide rail 300. The spring mechanism 600 will be explained in more detail later. For each spring mechanism 600, two carriages 601a, b are arranged in pairs in the guide rail 300 and guided in a translational manner between the inner webs 311a, b of the base rail 307.

The cover element 500 has a cross-sectional geometry in the form of a U rotated by 180°. The clear width of the cover element 500 is dimensioned here such that the cover element 500 in its lowered state with its two legs 501a, b overlaps the two outer webs 310a, b of the base rail 307, as shown in Figure 1b is shown. The cover element 500 further comprises at least one inner web 502, here two inner webs 502a, b, between which a bearing pin 503 is arranged, which is fastened to the inner webs 502a, b. A spring 602 is movably mounted on the bearing pin 503. The cover element 500 is provided for covering the guide rail 300 when the guide rail 300 is released by the at least one sliding leaf 200 of the sliding door.

In Fig. 1b the cover element 500 is shown in its lowered state, so that it can be driven over by a sliding leaf 200 of the sliding door, of which a lower frame beam 201 is shown here. In the lowered state, the cover element 500 is penetrated by the guide rollers 312a, b. Accordingly, the cover element 500 has corresponding openings 504a, b (see Fig. 2d ). The lower frame beam 201 has two guide shafts 202a, b on its underside, each of which engages in a guide surface 314a, b of the respective guide roller 312a, b, whereby the sliding sash 200 is guided in a displaceable manner. An interior of the guide rail 300 is sealed from the environment by the seals 305a, b and 306a, b, which nestle against the frame beam 201 of the sliding sash 200.

In Fig. 2a the spring mechanism 600 is shown in an exploded view and in Fig. 2b shown in the assembled state in a top view. The spring 602 is designed here as an angled leaf spring, which is supported in an articulated manner by a centrally arranged half eyelet 603 on the bearing pin 503. The spring 602 is preferably designed symmetrically and therefore has a left and a right angled leg 604a, b. At a free end of the respective leg 604a, b the spring 602 has a device, here a half eyelet 605a, b, which surrounds a bolt 606a, b. The bolt 606a, b is inserted into the carriage 601a, b. The carriage 601a, b has four rollers 607a, b, c, d, which are rotatably mounted on an axle 608a, b.

In Fig. 2c and Fig. 2d the spring mechanism 600 is shown mounted in the guide rail 300. The cover element 500 has been brought into a raised state by the spring mechanism 600 due to a vertically upward force of the spring 602. The bearing pin 503 is aligned with the guide rollers 312a, b, and the openings 504a, b for the guide rollers 312a, b in the cover element 500 are also clearly visible.

In Fig. 3a to 3c as well as Fig. 4a to 4c the spring mechanism 600 is shown in the assembled state without adjacent components. This shows how the spring 602 moves from the raised state ( Figure 3a to Fig. 3c ) to the lowered state ( Figure 4a to Fig. 4c ) of the cover element 500 is elastically deformed. When the spring 602 is deformed by the lowering movement of the cover element 500, the two carriages 601a, b move outwards due to the articulated coupling of the spring 602 via the respective eyelet 605a, b and the respective bolt 606a, b with the respective carriage 601a, b, as shown in Fig. 4a to 4c is shown. This allows the bearing pin 503 to move vertically downwards. The upward movement into the raised position is carried out in a similar way. The carriages 601a, b are each moved inwards. The carriages 601a, b are guided via the rollers 607a to 607d in the guide rail 300 between the two inner webs 311a, b of the base rail 307.

In this respect, the cover element 500 undergoes a vertical or substantially vertical movement between the raised state and the lowered state and vice versa by means of a guide device, which will be explained in more detail below and which is advantageously less space-consuming in a direction parallel to the longitudinal extension of the guide rail 300 than a pivoting movement.

In Fig. 5a and 5b it is shown that a guide device is provided so that the at least one cover element 500 executes a vertical or essentially vertical movement between the raised state and the lowered state or vice versa. The guide device here has a slotted guide 700 or is designed as a slotted guide.

In Fig. 5a and 5b The guide rail 300 is shown with a guide pin 701 and a guide block 702.

The guide pin 701 and the guide block 702 are functional elements of the link guide 700, with which the cover element 500 is guided on the way between its raised state to its lowered state and vice versa.

The guide pin 701 is held by at least one holding element 703, here two holding elements 703a, b, to which the guide pin 701 is screwed. The holding elements 703a, b are each attached externally to the inner webs 502a, b of the cover element 500. The holding elements 703a, b are preferably made of a metallic material.

The guide pin 701 passes through a slot-like guide groove 704 (not shown here, see Fig. 6a and Fig. 6b ), which is inserted into the guide block 702. The guide block 702 is attached to the guide rail 300 between the two inner webs 311a, b. The guide block 702 passes through an opening 315 in the guide rail 300 and can - as shown here - engage in the hollow chamber 301 in the guide rail 300. The holding elements 703a, b can also pass through the opening 315 and engage in the hollow chamber 301 when the lowering element 500 is in the lowered state.

In Fig. 6a and 6b the link guide 700 with the guide pin 701 is shown in an upper end position. The respective holding element 703a, b has a symmetrical, T-shaped geometry. In an upper area of the T, the fastening points of the respective holding element 703a, b are arranged, in which the respective holding element 703a, b is attached to the cover element 500 (not shown here, see Fig. 5a and 5b ) is attached.

The guide groove 704 is designed in the form of a U rotated by 180° and has a recess 705 at its apex or turning point, into which the guide pin 701 engages in its upper end position, so that the guide pin 701 assumes a defined upper end position in which the guide pin 701 is in a stable equilibrium. As a result, the cover element 500 in its raised state can safely absorb forces exerted on it - such as those that occur when a person steps on the cover element 500 - without avoiding such a load.

Due to the U-shaped design of the guide groove 704, the cover element 500 experiences a vertical or essentially vertical movement between the raised state and the lowered state and vice versa, since even in the areas of greater curvature in the "U" there is always a vertically downward or upward component of a movement vector of the guide pin 701 that only becomes zero at the apex or turning point of the U - i.e. in the upper end position of the guide pin 701. In other words, the movement of the guide pin 701 in the guide groove 704 is vertical at least in sections.

Such a vertical or essentially vertically acting movement of the guide pin 701 and thus of the cover element 500 is advantageously less space-consuming in a direction parallel to the longitudinal extension of the base rail 300 than a pivoting movement.

The guide block 702 can also be designed symmetrically and can have at least one, here two, cutouts 706a, b on each side, which guide the holding elements 703a, b laterally when the holding elements 703a, b move downwards. The guide block 702 can have two or more - here exactly two - threaded holes, via which it is attached to the base profile 300 by screws (see Fig. 5a and 5b ).

In Fig. 7a and 7b the link guide 700 with the guide pin 701 is shown in a lower right end position and in a lower left end position. This representation was chosen for the sake of simplicity. In this respect, the guide pin 701 - and with it the cover element 500 - can be in either a lower left or a lower right end position.

The distance between the two lower end positions of the guide pin 701 - and thus a longitudinal displacement of the cover element 500 during its movement from the raised state - corresponds to the distance between the legs of the U-shaped guide groove 704. In this respect, this distance can advantageously be designed according to purely geometric criteria and thus independently of the vertical distance of a surface OF of the cover element 500 between the lowered state and the raised state of the cover element 500, which must be taken into account in a parallelogram kinematics for the movement of the cover element 500.

Furthermore, the U-shaped guide groove 704 advantageously allows lowering of the lowering element 500 in two sliding directions of the sliding leaf 200 of the sliding door, such as this in Fig. 9a and 9b shown, and not only in one sliding direction of the sliding sash 200.

In Fig.8 a section of a guide rail 300 with a single cover element 500 in the raised state, two spring mechanisms 600 and two guide rails 700 is shown. The cover element 500 has a wedge-shaped projection 505a, b at each of its two ends. The guide rails 700 are arranged in alignment with a set of guide rollers 312a, b. The wedge-shaped projection 505a, b serves as a lowering aid.

In the guide rail 300, several cover elements 500 can be arranged one after the other as well as more than one spring mechanism 600 and more than one guide rail 700.

In Fig. 9a a section of a guide rail 300 with a single cover element 500 in the lowered state to the left, two spring mechanisms 600 and two guide rails 700 is shown. The lowered state to the left occurs when a sliding sash 200 is pushed from right to left and the lowering element 500 is thereby brought into its lowered state. The cover element 500 also has a wedge-shaped projection 505a, b at each of its two ends.

In Fig. 9b is the cover element 500 -analogous to the cover element 500 in Fig. 9a - shown in a state lowered to the right. The state lowered to the right occurs when the sliding sash 200 is pushed from left to right and the lowering element 500 is thereby brought into its lowered state. It is clearly visible that the guide rollers 312a, b each pass through the cover element 500 so that the sash 200 moved above the cover element 500 is guided on the guide rollers 312a, b.

In the Figures 10a to 10p a lowering process of the lowering element 500 is shown in several stages as an example. The sliding wing 200 or a roller 203 attached to the sliding wing 200 slides along the wedge-shaped projection 505a, b. As a result, the cover element 500 is successively pressed into the lowered state against the force of the spring mechanism(s) 600, so that the sliding wing 200 can be pushed over the lowering element 500.

In a variant of the invention not shown, the sliding wing 200 can have guide rollers which are mounted on guide rails or shafts or otherwise designed guide elements. These guide elements are preferably arranged on the base rail 307, but could alternatively also be arranged on the guide rail 300. The lowering element 500 is then designed accordingly.

In a further embodiment of the invention (not shown), the cover element 500 is designed such that it only covers the space between the inner webs 311a and 311b of the base rail 307. Furthermore, in this context it is also conceivable that the cover element 500 has an alternative cross-sectional geometry, so that the cover element 500 can be designed like a grate, for example.

It can also be advantageously provided that several of the cover elements 500 are arranged offset from one another in the main extension direction of the guide rail 1 and/or several of the spring mechanisms and/or several of the slotted guides are arranged.

List of reference symbols

1

Track

11

Guide channel

12

Guide channel

2,200

Sliding sash

28

role

29

wedge

201

Frame profile

202a, b

Guide shaft

3

Base rail

31

Main section

37

Transverse axis

300

Track

301

Hollow chamber

302a, b

leg

303a, b

Groove

304a, b

Groove

305a, b

Brush seal

306a, b

poetry

307

Base rail

308a, b

Insulating bar

309a, b

Groove

310a, b

Outer bridge

311a, b

Inner web

312a, b

Leadership role

313a, b

axis

314a, b

Guide surface

315

breakthrough

4

Roller

5

Cover element

50

Transverse axis

51

Main section

52

Outer bridge

55

role

56

Transverse axis

58

Rounding

6

Leg spring

61

leg

62

leg

600

Spring mechanism

601a, b

Carriage

602

Feather

603

eyelet

604a, b

leg

605a, b

eyelet

606a, b

bolt

607a, b

Roller

608a, b

axis

7

Support stand

71

Paragraph

700

Scenery guidance

701

Guide bolt

702

Guide block

703a, b

Holding element

704

Guide groove

705

deepening

706a, b

Excerpt

OF

surface

Claims (16)

1. Sliding wall assembly, comprising at least one sliding leaf (200) having a lower frame profile (201), a running rail (300) which can be lowered into a building floor and in which the at least one sliding leaf (200) is displaceably mounted at the lower edge, and at least one covering element (500) which serves to cover the at least one running rail (300) when the running rail (300) is released by the at least one displaceable sliding leaf (200), wherein the at least one covering element (500) has a raised state in which the covering element (500) covers the running rail (300) released by the sliding leaf (200) completely or in sections, as well as a lowered state in which the at least one covering element (500) is lowered into the at least one running rail (300), so that the at least one sliding leaf (200) can be displaced over the at least one covering element (500), characterized in that a guide device is provided which ensures that the at least one covering element (500) executes a vertical or substantially vertical movement between the raised state and the lowered state or vice versa, wherein the running rail (300) as the guide device has a slotted guide (700), wherein a guide bolt (701) engages through a slotted guide groove (704) which is introduced into a guide block (702) and wherein the guide groove (704) is in the form of a U, i.e. a U-shaped guide groove (704) rotated by 180°, so that the movement of the guide bolt (701) in the guide groove (704) is at least partially vertical.
2. Sliding wall assembly according to claim 1, characterized in that the U-shaped guide groove (704) has a recess (705) at the apex or turning point of the U, in which recess the guide bolt (701) engages in its upper end position, so that the guide bolt (701) assumes a defined upper end position.
3. Sliding wall assembly according to one of claims 1 to 2, characterized in that the guide bolt (701) is held by one or more holding elements (703a, b) to which the guide bolt (701) is screwed and the holding elements (703a, b) are each fastened on the outside to inner webs (502a, b) of the covering element (500).
4. Sliding wall assembly according to one of claims 1 to 3, characterized in that the guide block (702) is fastened between at least one inner web (311a, b) on the running rail (300) and engages through at least one aperture (315) of the running rail (300) into a hollow chamber (301) of the running rail (300), wherein preferably the guide block (702) is of symmetrical design and has in each case two lateral cutouts (706a, b) into which the holding elements (703a, b) guide laterally during a downward movement of the holding elements (703a, b), as well as two threaded holes via which it is fastened to the running rail (300) by screws.
5. Sliding wall assembly according to one of the preceding claims, characterized in that the running rail (300) has a substantially U-shaped cross-sectional geometry.
6. Sliding wall assembly according to one of the preceding claims, characterized in that a base rail (307) is inserted into the running rail (300), wherein the base rail (307) preferably has one or more outer webs (310a, b) and at least one or more inner webs (311a, b).
7. Sliding wall assembly according to claim 6, characterized in that a guide roller (312a, b) is rotatably mounted in each case between an outer web (310a, b) and an inner web (311a, b), wherein the guide rollers (312a, b) are arranged in pairs.
8. Sliding wall assembly according to claim 6 or 7, characterized in that the covering element (500) has a cross-sectional geometry in the form of a U, in particular a U rotated by 180°, wherein the clear width of the covering element (500) is preferably dimensioned such that, in its lowered state, the two legs (501a, b) of the covering element (500) engage over the two outer webs (310a, b) of the base rail (307).
9. Sliding wall assembly according to claim 8, characterized in that the covering element (500) has one or more inner webs (502a, b), between which a bearing bolt (503) is arranged, which is fastened to the at least one inner web (502a, b).
10. Sliding wall assembly according to one of claims 7 to 9, characterized in that the covering element (500) is penetrated by the guide rollers (312a, b) in the lowered state and the covering element (500) has corresponding apertures (504a, b).
11. Sliding wall assembly according to one of the preceding claims, characterized in that the covering element (500) can be passed over by a sliding leaf (200) of the sliding wall assembly in its lowered state.
12. Sliding wall assembly according to one of the preceding claims, characterized in that at least one spring mechanism (600) for raising and lowering the respective covering element (600) is provided in the running rail (300), which mechanism has at least one spring (602), wherein two carriages (601a, b) are preferably arranged in each case in pairs in the running rail (300) for each spring mechanism (600) and are guided in translation, in particular being guided in translation between the inner webs (311a, b).
13. Sliding wall assembly according to claims 9 and 12, characterized in that the spring (602) of the spring mechanism (600) is designed as a leaf spring, in particular as an angled leaf spring, which is supported in an articulated manner centrally on the bearing bolt (503), wherein the spring (602) is preferably of symmetrical design and has a first and a second angled leg (604a, b), wherein the spring (602) preferably engages around a pin (606a, b) at a free end of the respective leg (604a, b), wherein the pin (606a, b) is inserted in each case into the carriage (601a, b).
14. Sliding wall assembly according to one of claims 12 to 13, characterized in that each of the carriages (601a, b) has a plurality of rollers (607a, b, c, d).
15. Sliding wall assembly according to one of claims 13 to 14, characterized in that the spring (602) deforms elastically during the movement of the covering element (500) from the raised state to the lowered state or vice versa and the two carriages (601a, b) each move outwards or inwards, causing the bearing bolt (503) to move vertically downwards or upwards.
16. Sliding wall assembly according to one of the preceding claims 6 to 15,
    characterized in that the covering element (500) is designed in such a way that it covers the space between the inner webs (311a) and (311b) of the base rail (307), wherein preferably in the running rail (300) a plurality of the covering elements are offset in the main direction of extension and/or a plurality of the spring mechanisms (600) and/or a plurality of the slotted guides (700) are distributed.

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